code stringlengths 1 1.05M | repo_name stringlengths 6 83 | path stringlengths 3 242 | language stringclasses 222 values | license stringclasses 20 values | size int64 1 1.05M |
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def slider_event_cb(e):
code = e.get_code()
obj = e.get_target()
# Provide some extra space for the value
if code == lv.EVENT.REFR_EXT_DRAW_SIZE:
e.set_ext_draw_size(50)
elif code == lv.EVENT.DRAW_PART_END:
# print("DRAW_PART_END")
dsc = lv.obj_draw_part_dsc_t.__cast__(e.get_param())
# print(dsc)
if dsc.part == lv.PART.INDICATOR:
label_text = "{:d} - {:d}".format(obj.get_left_value(),slider.get_value())
label_size = lv.point_t()
lv.txt_get_size(label_size, label_text, lv.font_default(), 0, 0, lv.COORD.MAX, 0)
# print(label_size.x,label_size.y)
label_area = lv.area_t()
label_area.x1 = dsc.draw_area.x1 + dsc.draw_area.get_width() // 2 - label_size.x // 2
label_area.x2 = label_area.x1 + label_size.x
label_area.y2 = dsc.draw_area.y1 - 10
label_area.y1 = label_area.y2 - label_size.y
label_draw_dsc = lv.draw_label_dsc_t()
label_draw_dsc.init()
lv.draw_label(label_area, dsc.clip_area, label_draw_dsc, label_text, None)
#
# Show the current value when the slider if pressed by extending the drawer
#
#
#Create a slider in the center of the display
slider = lv.slider(lv.scr_act())
slider.center()
slider.set_mode(lv.slider.MODE.RANGE)
slider.set_value(70, lv.ANIM.OFF)
slider.set_left_value(20, lv.ANIM.OFF)
slider.add_event_cb(slider_event_cb, lv.EVENT.ALL, None)
slider.refresh_ext_draw_size()
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/slider/lv_example_slider_3.py | Python | apache-2.0 | 1,521 |
#include "../../lv_examples.h"
#if LV_USE_SPAN && LV_BUILD_EXAMPLES
/**
* Create span.
*/
void lv_example_span_1(void)
{
static lv_style_t style;
lv_style_init(&style);
lv_style_set_border_width(&style, 1);
lv_style_set_border_color(&style, lv_palette_main(LV_PALETTE_ORANGE));
lv_style_set_pad_all(&style, 2);
lv_obj_t * spans = lv_spangroup_create(lv_scr_act());
lv_obj_set_width(spans, 300);
lv_obj_set_height(spans,300);
lv_obj_center(spans);
lv_obj_add_style(spans, &style, 0);
lv_spangroup_set_align(spans, LV_TEXT_ALIGN_LEFT);
lv_spangroup_set_overflow(spans, LV_SPAN_OVERFLOW_CLIP);
lv_spangroup_set_indent(spans, 20);
lv_spangroup_set_mode(spans, LV_SPAN_MODE_BREAK);
lv_span_t * span = lv_spangroup_new_span(spans);
lv_span_set_text(span, "china is a beautiful country.");
lv_style_set_text_color(&span->style, lv_palette_main(LV_PALETTE_RED));
lv_style_set_text_decor(&span->style, LV_TEXT_DECOR_STRIKETHROUGH | LV_TEXT_DECOR_UNDERLINE);
lv_style_set_text_opa(&span->style, LV_OPA_30);
span = lv_spangroup_new_span(spans);
lv_span_set_text_static(span, "good good study, day day up.");
#if LV_FONT_MONTSERRAT_24
lv_style_set_text_font(&span->style, &lv_font_montserrat_24);
#endif
lv_style_set_text_color(&span->style, lv_palette_main(LV_PALETTE_GREEN));
span = lv_spangroup_new_span(spans);
lv_span_set_text_static(span, "LVGL is an open-source graphics library.");
lv_style_set_text_color(&span->style, lv_palette_main(LV_PALETTE_BLUE));
span = lv_spangroup_new_span(spans);
lv_span_set_text_static(span, "the boy no name.");
lv_style_set_text_color(&span->style, lv_palette_main(LV_PALETTE_GREEN));
#if LV_FONT_MONTSERRAT_20
lv_style_set_text_font(&span->style, &lv_font_montserrat_20);
#endif
lv_style_set_text_decor(&span->style, LV_TEXT_DECOR_UNDERLINE);
span = lv_spangroup_new_span(spans);
lv_span_set_text(span, "I have a dream that hope to come true.");
lv_spangroup_refr_mode(spans);
}
#endif
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/span/lv_example_span_1.c | C | apache-2.0 | 2,064 |
#
# Create span
#
style = lv.style_t()
style.init()
style.set_border_width(1)
style.set_border_color(lv.palette_main(lv.PALETTE.ORANGE))
style.set_pad_all(2)
spans = lv.spangroup(lv.scr_act())
spans.set_width(300)
spans.set_height(300)
spans.center()
spans.add_style(style, 0)
spans.set_align(lv.TEXT_ALIGN.LEFT)
spans.set_overflow(lv.SPAN_OVERFLOW.CLIP)
spans.set_indent(20)
spans.set_mode(lv.SPAN_MODE.BREAK)
span = spans.new_span()
span.set_text("china is a beautiful country.")
span.style.set_text_color(lv.palette_main(lv.PALETTE.RED))
span.style.set_text_decor(lv.TEXT_DECOR.STRIKETHROUGH | lv.TEXT_DECOR.UNDERLINE)
span.style.set_text_opa(lv.OPA._30)
span = spans.new_span()
span.set_text_static("good good study, day day up.");
#if LV_FONT_MONTSERRAT_24
# lv_style_set_text_font(&span->style, &lv_font_montserrat_24);
#endif
span.style.set_text_color(lv.palette_main(lv.PALETTE.GREEN))
span = spans.new_span()
span.set_text_static("LVGL is an open-source graphics library.")
span.style.set_text_color(lv.palette_main(lv.PALETTE.BLUE))
span = spans.new_span()
span.set_text_static("the boy no name.")
span.style.set_text_color(lv.palette_main(lv.PALETTE.GREEN))
#if LV_FONT_MONTSERRAT_20
# lv_style_set_text_font(&span->style, &lv_font_montserrat_20);
#endif
span.style.set_text_decor(lv.TEXT_DECOR.UNDERLINE)
span = spans.new_span()
span.set_text("I have a dream that hope to come true.")
spans.refr_mode()
# lv_span_del(spans, span);
# lv_obj_del(spans);
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/span/lv_example_span_1.py | Python | apache-2.0 | 1,481 |
#include "../../lv_examples.h"
#if LV_USE_SPINBOX && LV_BUILD_EXAMPLES
static lv_obj_t * spinbox;
static void lv_spinbox_increment_event_cb(lv_event_t * e)
{
lv_event_code_t code = lv_event_get_code(e);
if(code == LV_EVENT_SHORT_CLICKED || code == LV_EVENT_LONG_PRESSED_REPEAT) {
lv_spinbox_increment(spinbox);
}
}
static void lv_spinbox_decrement_event_cb(lv_event_t * e)
{
lv_event_code_t code = lv_event_get_code(e);
if(code == LV_EVENT_SHORT_CLICKED || code == LV_EVENT_LONG_PRESSED_REPEAT) {
lv_spinbox_decrement(spinbox);
}
}
void lv_example_spinbox_1(void)
{
spinbox = lv_spinbox_create(lv_scr_act());
lv_spinbox_set_range(spinbox, -1000, 25000);
lv_spinbox_set_digit_format(spinbox, 5, 2);
lv_spinbox_step_prev(spinbox);
lv_obj_set_width(spinbox, 100);
lv_obj_center(spinbox);
lv_coord_t h = lv_obj_get_height(spinbox);
lv_obj_t * btn = lv_btn_create(lv_scr_act());
lv_obj_set_size(btn, h, h);
lv_obj_align_to(btn, spinbox, LV_ALIGN_OUT_RIGHT_MID, 5, 0);
lv_obj_set_style_bg_img_src(btn, LV_SYMBOL_PLUS, 0);
lv_obj_add_event_cb(btn, lv_spinbox_increment_event_cb, LV_EVENT_ALL, NULL);
btn = lv_btn_create(lv_scr_act());
lv_obj_set_size(btn, h, h);
lv_obj_align_to(btn, spinbox, LV_ALIGN_OUT_LEFT_MID, -5, 0);
lv_obj_set_style_bg_img_src(btn, LV_SYMBOL_MINUS, 0);
lv_obj_add_event_cb(btn, lv_spinbox_decrement_event_cb, LV_EVENT_ALL, NULL);
}
#endif
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/spinbox/lv_example_spinbox_1.c | C | apache-2.0 | 1,477 |
def increment_event_cb(e):
code = e.get_code()
if code == lv.EVENT.SHORT_CLICKED or code == lv.EVENT.LONG_PRESSED_REPEAT:
spinbox.increment()
def decrement_event_cb(e):
code = e.get_code()
if code == lv.EVENT.SHORT_CLICKED or code == lv.EVENT.LONG_PRESSED_REPEAT:
spinbox.decrement()
spinbox = lv.spinbox(lv.scr_act())
spinbox.set_range(-1000, 25000)
spinbox.set_digit_format(5, 2)
spinbox.step_prev()
spinbox.set_width(100)
spinbox.center()
h = spinbox.get_height()
btn = lv.btn(lv.scr_act())
btn.set_size(h, h)
btn.align_to(spinbox, lv.ALIGN.OUT_RIGHT_MID, 5, 0)
btn.set_style_bg_img_src(lv.SYMBOL.PLUS, 0)
btn.add_event_cb(increment_event_cb, lv.EVENT.ALL, None)
btn = lv.btn(lv.scr_act())
btn.set_size(h, h)
btn.align_to(spinbox, lv.ALIGN.OUT_LEFT_MID, -5, 0)
btn.set_style_bg_img_src(lv.SYMBOL.MINUS, 0)
btn.add_event_cb(decrement_event_cb, lv.EVENT.ALL, None)
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/spinbox/lv_example_spinbox_1.py | Python | apache-2.0 | 905 |
#include "../../lv_examples.h"
#if LV_USE_SPINNER && LV_BUILD_EXAMPLES
void lv_example_spinner_1(void)
{
/*Create a spinner*/
lv_obj_t * spinner = lv_spinner_create(lv_scr_act(), 1000, 60);
lv_obj_set_size(spinner, 100, 100);
lv_obj_center(spinner);
}
#endif
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/spinner/lv_example_spinner_1.c | C | apache-2.0 | 277 |
# Create a spinner
spinner = lv.spinner(lv.scr_act(), 1000, 60)
spinner.set_size(100, 100)
spinner.center()
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/spinner/lv_example_spinner_1.py | Python | apache-2.0 | 110 |
#include "../../lv_examples.h"
#if LV_USE_SWITCH && LV_BUILD_EXAMPLES
static void event_handler(lv_event_t * e)
{
lv_event_code_t code = lv_event_get_code(e);
lv_obj_t * obj = lv_event_get_target(e);
if(code == LV_EVENT_VALUE_CHANGED) {
LV_LOG_USER("State: %s\n", lv_obj_has_state(obj, LV_STATE_CHECKED) ? "On" : "Off");
}
}
void lv_example_switch_1(void)
{
lv_obj_set_flex_flow(lv_scr_act(), LV_FLEX_FLOW_COLUMN);
lv_obj_set_flex_align(lv_scr_act(), LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER);
lv_obj_t * sw;
sw = lv_switch_create(lv_scr_act());
lv_obj_add_event_cb(sw, event_handler, LV_EVENT_ALL, NULL);
sw = lv_switch_create(lv_scr_act());
lv_obj_add_state(sw, LV_STATE_CHECKED);
lv_obj_add_event_cb(sw, event_handler, LV_EVENT_ALL, NULL);
sw = lv_switch_create(lv_scr_act());
lv_obj_add_state(sw, LV_STATE_DISABLED);
lv_obj_add_event_cb(sw, event_handler, LV_EVENT_ALL, NULL);
sw = lv_switch_create(lv_scr_act());
lv_obj_add_state(sw, LV_STATE_CHECKED | LV_STATE_DISABLED);
lv_obj_add_event_cb(sw, event_handler, LV_EVENT_ALL, NULL);
}
#endif
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/switch/lv_example_switch_1.c | C | apache-2.0 | 1,159 |
def event_handler(e):
code = e.get_code()
obj = e.get_target()
if code == lv.EVENT.VALUE_CHANGED:
if obj.has_state(lv.STATE.CHECKED):
print("State: on")
else:
print("State: off")
lv.scr_act().set_flex_flow(lv.FLEX_FLOW.COLUMN)
lv.scr_act().set_flex_align(lv.FLEX_ALIGN.CENTER, lv.FLEX_ALIGN.CENTER, lv.FLEX_ALIGN.CENTER)
sw = lv.switch(lv.scr_act())
sw.add_event_cb(event_handler,lv.EVENT.ALL, None)
sw = lv.switch(lv.scr_act())
sw.add_state(lv.STATE.CHECKED)
sw.add_event_cb(event_handler, lv.EVENT.ALL, None)
sw = lv.switch(lv.scr_act())
sw.add_state(lv.STATE.DISABLED)
sw.add_event_cb(event_handler, lv.EVENT.ALL, None)
sw = lv.switch(lv.scr_act())
sw.add_state(lv.STATE.CHECKED | lv.STATE.DISABLED)
sw.add_event_cb(event_handler, lv.EVENT.ALL, None)
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/switch/lv_example_switch_1.py | Python | apache-2.0 | 813 |
#include "../../lv_examples.h"
#if LV_USE_TABLE && LV_BUILD_EXAMPLES
static void draw_part_event_cb(lv_event_t * e)
{
lv_obj_t * obj = lv_event_get_target(e);
lv_obj_draw_part_dsc_t * dsc = lv_event_get_param(e);
/*If the cells are drawn...*/
if(dsc->part == LV_PART_ITEMS) {
uint32_t row = dsc->id / lv_table_get_col_cnt(obj);
uint32_t col = dsc->id - row * lv_table_get_col_cnt(obj);
/*Make the texts in the first cell center aligned*/
if(row == 0) {
dsc->label_dsc->align = LV_TEXT_ALIGN_CENTER;
dsc->rect_dsc->bg_color = lv_color_mix(lv_palette_main(LV_PALETTE_BLUE), dsc->rect_dsc->bg_color, LV_OPA_20);
dsc->rect_dsc->bg_opa = LV_OPA_COVER;
}
/*In the first column align the texts to the right*/
else if(col == 0) {
dsc->label_dsc->flag = LV_TEXT_ALIGN_RIGHT;
}
/*MAke every 2nd row grayish*/
if((row != 0 && row % 2) == 0) {
dsc->rect_dsc->bg_color = lv_color_mix(lv_palette_main(LV_PALETTE_GREY), dsc->rect_dsc->bg_color, LV_OPA_10);
dsc->rect_dsc->bg_opa = LV_OPA_COVER;
}
}
}
void lv_example_table_1(void)
{
lv_obj_t * table = lv_table_create(lv_scr_act());
/*Fill the first column*/
lv_table_set_cell_value(table, 0, 0, "Name");
lv_table_set_cell_value(table, 1, 0, "Apple");
lv_table_set_cell_value(table, 2, 0, "Banana");
lv_table_set_cell_value(table, 3, 0, "Lemon");
lv_table_set_cell_value(table, 4, 0, "Grape");
lv_table_set_cell_value(table, 5, 0, "Melon");
lv_table_set_cell_value(table, 6, 0, "Peach");
lv_table_set_cell_value(table, 7, 0, "Nuts");
/*Fill the second column*/
lv_table_set_cell_value(table, 0, 1, "Price");
lv_table_set_cell_value(table, 1, 1, "$7");
lv_table_set_cell_value(table, 2, 1, "$4");
lv_table_set_cell_value(table, 3, 1, "$6");
lv_table_set_cell_value(table, 4, 1, "$2");
lv_table_set_cell_value(table, 5, 1, "$5");
lv_table_set_cell_value(table, 6, 1, "$1");
lv_table_set_cell_value(table, 7, 1, "$9");
/*Set a smaller height to the table. It'll make it scrollable*/
lv_obj_set_height(table, 200);
lv_obj_center(table);
/*Add an event callback to to apply some custom drawing*/
lv_obj_add_event_cb(table, draw_part_event_cb, LV_EVENT_DRAW_PART_BEGIN, NULL);
}
#endif
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/table/lv_example_table_1.c | C | apache-2.0 | 2,402 |
def draw_part_event_cb(e):
obj = e.get_target()
dsc = lv.obj_draw_part_dsc_t.__cast__(e.get_param())
# If the cells are drawn../
if dsc.part == lv.PART.ITEMS:
row = dsc.id // obj.get_col_cnt()
col = dsc.id - row * obj.get_col_cnt()
# Make the texts in the first cell center aligned
if row == 0:
dsc.label_dsc.align = lv.TEXT_ALIGN.CENTER
dsc.rect_dsc.bg_color = lv.palette_main(lv.PALETTE.BLUE).color_mix(dsc.rect_dsc.bg_color, lv.OPA._20)
dsc.rect_dsc.bg_opa = lv.OPA.COVER
# In the first column align the texts to the right
elif col == 0:
dsc.label_dsc.flag = lv.TEXT_ALIGN.RIGHT
# Make every 2nd row grayish
if row != 0 and (row % 2) == 0:
dsc.rect_dsc.bg_color = lv.palette_main(lv.PALETTE.GREY).color_mix(dsc.rect_dsc.bg_color, lv.OPA._10)
dsc.rect_dsc.bg_opa = lv.OPA.COVER
table = lv.table(lv.scr_act())
# Fill the first column
table.set_cell_value(0, 0, "Name");
table.set_cell_value(1, 0, "Apple");
table.set_cell_value(2, 0, "Banana");
table.set_cell_value(3, 0, "Lemon");
table.set_cell_value(4, 0, "Grape");
table.set_cell_value(5, 0, "Melon");
table.set_cell_value(6, 0, "Peach");
table.set_cell_value(7, 0, "Nuts");
# Fill the second column
table.set_cell_value(0, 1, "Price");
table.set_cell_value(1, 1, "$7");
table.set_cell_value(2, 1, "$4");
table.set_cell_value(3, 1, "$6");
table.set_cell_value(4, 1, "$2");
table.set_cell_value(5, 1, "$5");
table.set_cell_value(6, 1, "$1");
table.set_cell_value(7, 1, "$9");
# Set a smaller height to the table. It'll make it scrollable
table.set_height(200)
table.center()
# Add an event callback to to apply some custom drawing
table.add_event_cb(draw_part_event_cb, lv.EVENT.DRAW_PART_BEGIN, None)
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/table/lv_example_table_1.py | Python | apache-2.0 | 1,819 |
#include "../../lv_examples.h"
#if LV_USE_TABLE && LV_BUILD_EXAMPLES
#define ITEM_CNT 200
static void draw_event_cb(lv_event_t * e)
{
lv_obj_t * obj = lv_event_get_target(e);
lv_obj_draw_part_dsc_t * dsc = lv_event_get_draw_part_dsc(e);
/*If the cells are drawn...*/
if(dsc->part == LV_PART_ITEMS) {
bool chk = lv_table_has_cell_ctrl(obj, dsc->id, 0, LV_TABLE_CELL_CTRL_CUSTOM_1);
lv_draw_rect_dsc_t rect_dsc;
lv_draw_rect_dsc_init(&rect_dsc);
rect_dsc.bg_color = chk ? lv_theme_get_color_primary(obj) : lv_palette_lighten(LV_PALETTE_GREY, 2);
rect_dsc.radius = LV_RADIUS_CIRCLE;
lv_area_t sw_area;
sw_area.x1 = dsc->draw_area->x2 - 50;
sw_area.x2 = sw_area.x1 + 40;
sw_area.y1 = dsc->draw_area->y1 + lv_area_get_height(dsc->draw_area) / 2 - 10;
sw_area.y2 = sw_area.y1 + 20;
lv_draw_rect(&sw_area, dsc->clip_area, &rect_dsc);
rect_dsc.bg_color = lv_color_white();
if(chk) {
sw_area.x2 -= 2;
sw_area.x1 = sw_area.x2 - 16;
} else {
sw_area.x1 += 2;
sw_area.x2 = sw_area.x1 + 16;
}
sw_area.y1 += 2;
sw_area.y2 -= 2;
lv_draw_rect(&sw_area, dsc->clip_area, &rect_dsc);
}
}
static void change_event_cb(lv_event_t * e)
{
lv_obj_t * obj = lv_event_get_target(e);
uint16_t col;
uint16_t row;
lv_table_get_selected_cell(obj, &row, &col);
bool chk = lv_table_has_cell_ctrl(obj, row, 0, LV_TABLE_CELL_CTRL_CUSTOM_1);
if(chk) lv_table_clear_cell_ctrl(obj, row, 0, LV_TABLE_CELL_CTRL_CUSTOM_1);
else lv_table_add_cell_ctrl(obj, row, 0, LV_TABLE_CELL_CTRL_CUSTOM_1);
}
/**
* A very light-weighted list created from table
*/
void lv_example_table_2(void)
{
/*Measure memory usage*/
lv_mem_monitor_t mon1;
lv_mem_monitor(&mon1);
uint32_t t = lv_tick_get();
lv_obj_t * table = lv_table_create(lv_scr_act());
/*Set a smaller height to the table. It'll make it scrollable*/
lv_obj_set_size(table, LV_SIZE_CONTENT, 200);
lv_table_set_col_width(table, 0, 150);
lv_table_set_row_cnt(table, ITEM_CNT); /*Not required but avoids a lot of memory reallocation lv_table_set_set_value*/
lv_table_set_col_cnt(table, 1);
/*Don't make the cell pressed, we will draw something different in the event*/
lv_obj_remove_style(table, NULL, LV_PART_ITEMS | LV_STATE_PRESSED);
uint32_t i;
for(i = 0; i < ITEM_CNT; i++) {
lv_table_set_cell_value_fmt(table, i, 0, "Item %d", i + 1);
}
lv_obj_align(table, LV_ALIGN_CENTER, 0, -20);
/*Add an event callback to to apply some custom drawing*/
lv_obj_add_event_cb(table, draw_event_cb, LV_EVENT_DRAW_PART_END, NULL);
lv_obj_add_event_cb(table, change_event_cb, LV_EVENT_VALUE_CHANGED, NULL);
lv_mem_monitor_t mon2;
lv_mem_monitor(&mon2);
long unsigned int mem_used = mon1.free_size - mon2.free_size;
unsigned int elaps = lv_tick_elaps(t);
lv_obj_t * label = lv_label_create(lv_scr_act());
lv_label_set_text_fmt(label, "%d items were created in %u ms\n"
"using %lu bytes of memory",
ITEM_CNT, elaps, mem_used);
lv_obj_align(label, LV_ALIGN_BOTTOM_MID, 0, -10);
}
#endif
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/table/lv_example_table_2.c | C | apache-2.0 | 3,319 |
from utime import ticks_ms
import gc
ITEM_CNT = 200
def draw_event_cb(e):
obj = e.get_target()
dsc = lv.obj_draw_part_dsc_t.__cast__(e.get_param())
# If the cells are drawn...
if dsc.part == lv.PART.ITEMS:
chk = obj.has_cell_ctrl(dsc.id, 0, lv.table.CELL_CTRL.CUSTOM_1)
rect_dsc = lv.draw_rect_dsc_t()
rect_dsc.init()
if chk:
rect_dsc.bg_color = lv.theme_get_color_primary(obj)
else:
rect_dsc.bg_color = lv.palette_lighten(lv.PALETTE.GREY,2)
rect_dsc.radius = lv.RADIUS.CIRCLE
sw_area = lv.area_t()
sw_area.x1 = dsc.draw_area.x2 - 50;
sw_area.x2 = sw_area.x1 + 40;
sw_area.y1 = dsc.draw_area.y1 + dsc.draw_area.get_height() // 2 - 10
sw_area.y2 = sw_area.y1 + 20;
lv.draw_rect(sw_area, dsc.clip_area, rect_dsc)
rect_dsc.bg_color = lv.color_white()
if chk:
sw_area.x2 -= 2
sw_area.x1 = sw_area.x2 - 16
else:
sw_area.x1 += 2
sw_area.x2 = sw_area.x1 + 16
sw_area.y1 += 2;
sw_area.y2 -= 2;
lv.draw_rect(sw_area, dsc.clip_area, rect_dsc)
def change_event_cb(e):
obj = e.get_target()
row = lv.C_Pointer()
col = lv.C_Pointer()
table.get_selected_cell(row, col)
# print("row: ",row.uint_val)
chk = table.has_cell_ctrl(row.uint_val, 0, lv.table.CELL_CTRL.CUSTOM_1)
if chk:
table.clear_cell_ctrl(row.uint_val, 0, lv.table.CELL_CTRL.CUSTOM_1)
else:
table.add_cell_ctrl(row.uint_val, 0, lv.table.CELL_CTRL.CUSTOM_1)
#
# A very light-weighted list created from table
#
# Measure memory usage
gc.enable()
gc.collect()
mem_free = gc.mem_free()
print("mem_free: ",mem_free)
t = ticks_ms()
print("ticks: ", t)
table = lv.table(lv.scr_act())
# Set a smaller height to the table. It'll make it scrollable
table.set_size(150, 200)
table.set_col_width(0, 150)
table.set_row_cnt(ITEM_CNT) # Not required but avoids a lot of memory reallocation lv_table_set_set_value
table.set_col_cnt(1)
# Don't make the cell pressed, we will draw something different in the event
table.remove_style(None, lv.PART.ITEMS | lv.STATE.PRESSED)
for i in range(ITEM_CNT):
table.set_cell_value(i, 0, "Item " + str(i+1))
table.align(lv.ALIGN.CENTER, 0, -20);
# Add an event callback to to apply some custom drawing
table.add_event_cb(draw_event_cb, lv.EVENT.DRAW_PART_END, None)
table.add_event_cb(change_event_cb, lv.EVENT.VALUE_CHANGED, None)
gc.collect()
mem_used = mem_free - gc.mem_free()
elaps = ticks_ms()-t
label = lv.label(lv.scr_act())
label.set_text(str(ITEM_CNT) + " items were created in " + str(elaps) + " ms\n using " + str(mem_used) + " bytes of memory")
#label.set_text(str(ITEM_CNT) + " items were created in " + str(elaps) + " ms")
label.align(lv.ALIGN.BOTTOM_MID, 0, -10)
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/table/lv_example_table_2.py | Python | apache-2.0 | 2,883 |
#include "../../lv_examples.h"
#if LV_USE_TABVIEW && LV_BUILD_EXAMPLES
void lv_example_tabview_1(void)
{
/*Create a Tab view object*/
lv_obj_t *tabview;
tabview = lv_tabview_create(lv_scr_act(), LV_DIR_TOP, 50);
/*Add 3 tabs (the tabs are page (lv_page) and can be scrolled*/
lv_obj_t *tab1 = lv_tabview_add_tab(tabview, "Tab 1");
lv_obj_t *tab2 = lv_tabview_add_tab(tabview, "Tab 2");
lv_obj_t *tab3 = lv_tabview_add_tab(tabview, "Tab 3");
/*Add content to the tabs*/
lv_obj_t * label = lv_label_create(tab1);
lv_label_set_text(label, "This the first tab\n\n"
"If the content\n"
"of a tab\n"
"becomes too\n"
"longer\n"
"than the\n"
"container\n"
"then it\n"
"automatically\n"
"becomes\n"
"scrollable.\n"
"\n"
"\n"
"\n"
"Can you see it?");
label = lv_label_create(tab2);
lv_label_set_text(label, "Second tab");
label = lv_label_create(tab3);
lv_label_set_text(label, "Third tab");
lv_obj_scroll_to_view_recursive(label, LV_ANIM_ON);
}
#endif
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/tabview/lv_example_tabview_1.c | C | apache-2.0 | 1,415 |
# Create a Tab view object
tabview = lv.tabview(lv.scr_act(), lv.DIR.TOP, 50)
# Add 3 tabs (the tabs are page (lv_page) and can be scrolled
tab1 = tabview.add_tab("Tab 1")
tab2 = tabview.add_tab("Tab 2")
tab3 = tabview.add_tab("Tab 3")
# Add content to the tabs
label = lv.label(tab1)
label.set_text("""This the first tab
If the content
of a tab
becomes too
longer
than the
container
then it
automatically
becomes
scrollable.
Can you see it?""")
label = lv.label(tab2)
label.set_text("Second tab")
label = lv.label(tab3)
label.set_text("Third tab");
label.scroll_to_view_recursive(lv.ANIM.ON)
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/tabview/lv_example_tabview_1.py | Python | apache-2.0 | 603 |
#include "../../lv_examples.h"
#if LV_USE_TABVIEW && LV_BUILD_EXAMPLES
static void scroll_begin_event(lv_event_t * e)
{
/*Disable the scroll animations. Triggered when a tab button is clicked */
if(lv_event_get_code(e) == LV_EVENT_SCROLL_BEGIN) {
lv_anim_t * a = lv_event_get_param(e);
if(a) a->time = 0;
}
}
void lv_example_tabview_2(void)
{
/*Create a Tab view object*/
lv_obj_t *tabview;
tabview = lv_tabview_create(lv_scr_act(), LV_DIR_LEFT, 80);
lv_obj_add_event_cb(lv_tabview_get_content(tabview), scroll_begin_event, LV_EVENT_SCROLL_BEGIN, NULL);
lv_obj_set_style_bg_color(tabview, lv_palette_lighten(LV_PALETTE_RED, 2), 0);
lv_obj_t * tab_btns = lv_tabview_get_tab_btns(tabview);
lv_obj_set_style_bg_color(tab_btns, lv_palette_darken(LV_PALETTE_GREY, 3), 0);
lv_obj_set_style_text_color(tab_btns, lv_palette_lighten(LV_PALETTE_GREY, 5), 0);
lv_obj_set_style_border_side(tab_btns, LV_BORDER_SIDE_RIGHT, LV_PART_ITEMS | LV_STATE_CHECKED);
/*Add 3 tabs (the tabs are page (lv_page) and can be scrolled*/
lv_obj_t *tab1 = lv_tabview_add_tab(tabview, "Tab 1");
lv_obj_t *tab2 = lv_tabview_add_tab(tabview, "Tab 2");
lv_obj_t *tab3 = lv_tabview_add_tab(tabview, "Tab 3");
lv_obj_t *tab4 = lv_tabview_add_tab(tabview, "Tab 4");
lv_obj_t *tab5 = lv_tabview_add_tab(tabview, "Tab 5");
lv_obj_set_style_bg_color(tab2, lv_palette_lighten(LV_PALETTE_AMBER, 3), 0);
lv_obj_set_style_bg_opa(tab2, LV_OPA_COVER, 0);
/*Add content to the tabs*/
lv_obj_t * label = lv_label_create(tab1);
lv_label_set_text(label, "First tab");
label = lv_label_create(tab2);
lv_label_set_text(label, "Second tab");
label = lv_label_create(tab3);
lv_label_set_text(label, "Third tab");
label = lv_label_create(tab4);
lv_label_set_text(label, "Forth tab");
label = lv_label_create(tab5);
lv_label_set_text(label, "Fifth tab");
lv_obj_clear_flag(lv_tabview_get_content(tabview), LV_OBJ_FLAG_SCROLLABLE);
}
#endif
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/tabview/lv_example_tabview_2.c | C | apache-2.0 | 2,042 |
def scroll_begin_event(e):
#Disable the scroll animations. Triggered when a tab button is clicked */
if e.get_code() == lv.EVENT.SCROLL_BEGIN:
a = lv.anim_t.__cast__(e.get_param())
if a:
a.time = 0
# Create a Tab view object
tabview = lv.tabview(lv.scr_act(), lv.DIR.LEFT, 80)
tabview.get_content().add_event_cb(scroll_begin_event, lv.EVENT.SCROLL_BEGIN, None)
tabview.set_style_bg_color(lv.palette_lighten(lv.PALETTE.RED, 2), 0)
tab_btns = tabview.get_tab_btns()
tab_btns.set_style_bg_color(lv.palette_darken(lv.PALETTE.GREY, 3), 0)
tab_btns.set_style_text_color(lv.palette_lighten(lv.PALETTE.GREY, 5), 0)
tab_btns.set_style_border_side(lv.BORDER_SIDE.RIGHT, lv.PART.ITEMS | lv.STATE.CHECKED)
# Add 3 tabs (the tabs are page (lv_page) and can be scrolled
tab1 = tabview.add_tab("Tab 1")
tab2 = tabview.add_tab("Tab 2")
tab3 = tabview.add_tab("Tab 3")
tab4 = tabview.add_tab("Tab 4")
tab5 = tabview.add_tab("Tab 5")
tab2.set_style_bg_color(lv.palette_lighten(lv.PALETTE.AMBER, 3), 0)
tab2.set_style_bg_opa(lv.OPA.COVER, 0)
# Add content to the tabs
label = lv.label(tab1)
label.set_text("First tab")
label = lv.label(tab2)
label.set_text("Second tab")
label = lv.label(tab3)
label.set_text("Third tab")
label = lv.label(tab4)
label.set_text("Forth tab")
label = lv.label(tab5)
label.set_text("Fifth tab")
tabview.get_content().clear_flag(lv.obj.FLAG.SCROLLABLE)
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/tabview/lv_example_tabview_2.py | Python | apache-2.0 | 1,412 |
#include "../../lv_examples.h"
#if LV_USE_TEXTAREA && LV_BUILD_EXAMPLES
static void textarea_event_handler(lv_event_t * e)
{
lv_obj_t * ta = lv_event_get_target(e);
LV_LOG_USER("Enter was pressed. The current text is: %s", lv_textarea_get_text(ta));
}
static void btnm_event_handler(lv_event_t * e)
{
lv_obj_t * obj = lv_event_get_target(e);
lv_obj_t * ta = lv_event_get_user_data(e);
const char * txt = lv_btnmatrix_get_btn_text(obj, lv_btnmatrix_get_selected_btn(obj));
if(strcmp(txt, LV_SYMBOL_BACKSPACE) == 0) lv_textarea_del_char(ta);
else if(strcmp(txt, LV_SYMBOL_NEW_LINE) == 0) lv_event_send(ta, LV_EVENT_READY, NULL);
else lv_textarea_add_text(ta, txt);
}
void lv_example_textarea_1(void)
{
lv_obj_t * ta = lv_textarea_create(lv_scr_act());
lv_textarea_set_one_line(ta, true);
lv_obj_align(ta, LV_ALIGN_TOP_MID, 0, 10);
lv_obj_add_event_cb(ta, textarea_event_handler, LV_EVENT_READY, ta);
lv_obj_add_state(ta, LV_STATE_FOCUSED); /*To be sure the cursor is visible*/
static const char * btnm_map[] = {"1", "2", "3", "\n",
"4", "5", "6", "\n",
"7", "8", "9", "\n",
LV_SYMBOL_BACKSPACE, "0", LV_SYMBOL_NEW_LINE, ""};
lv_obj_t * btnm = lv_btnmatrix_create(lv_scr_act());
lv_obj_set_size(btnm, 200, 150);
lv_obj_align(btnm, LV_ALIGN_BOTTOM_MID, 0, -10);
lv_obj_add_event_cb(btnm, btnm_event_handler, LV_EVENT_VALUE_CHANGED, ta);
lv_obj_clear_flag(btnm, LV_OBJ_FLAG_CLICK_FOCUSABLE); /*To keep the text area focused on button clicks*/
lv_btnmatrix_set_map(btnm, btnm_map);
}
#endif
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/textarea/lv_example_textarea_1.c | C | apache-2.0 | 1,666 |
def textarea_event_handler(e,ta):
print("Enter was pressed. The current text is: " + ta.get_text())
def btnm_event_handler(e,ta):
obj = e.get_target()
txt = obj.get_btn_text(obj.get_selected_btn())
if txt == lv.SYMBOL.BACKSPACE:
ta.del_char()
elif txt == lv.SYMBOL.NEW_LINE:
lv.event_send(ta,lv.EVENT.READY,None)
elif txt:
ta.add_text(txt)
ta = lv.textarea(lv.scr_act())
ta.set_one_line(True)
ta.align(lv.ALIGN.TOP_MID, 0, 10)
ta.add_event_cb(lambda e: textarea_event_handler(e,ta), lv.EVENT.READY, None)
ta.add_state(lv.STATE.FOCUSED) # To be sure the cursor is visible
btnm_map = ["1", "2", "3", "\n",
"4", "5", "6", "\n",
"7", "8", "9", "\n",
lv.SYMBOL.BACKSPACE, "0", lv.SYMBOL.NEW_LINE, ""]
btnm = lv.btnmatrix(lv.scr_act())
btnm.set_size(200, 150)
btnm.align(lv.ALIGN.BOTTOM_MID, 0, -10)
btnm.add_event_cb(lambda e: btnm_event_handler(e,ta), lv.EVENT.VALUE_CHANGED, None)
btnm.clear_flag(lv.obj.FLAG.CLICK_FOCUSABLE) # To keep the text area focused on button clicks
btnm.set_map(btnm_map)
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/textarea/lv_example_textarea_1.py | Python | apache-2.0 | 1,103 |
#include "../../lv_examples.h"
#if LV_USE_TEXTAREA && LV_USE_KEYBOARD && LV_BUILD_EXAMPLES
static void ta_event_cb(lv_event_t * e);
static lv_obj_t * kb;
void lv_example_textarea_2(void)
{
/*Create the password box*/
lv_obj_t * pwd_ta = lv_textarea_create(lv_scr_act());
lv_textarea_set_text(pwd_ta, "");
lv_textarea_set_password_mode(pwd_ta, true);
lv_textarea_set_one_line(pwd_ta, true);
lv_obj_set_width(pwd_ta, lv_pct(40));
lv_obj_set_pos(pwd_ta, 5, 20);
lv_obj_add_event_cb(pwd_ta, ta_event_cb, LV_EVENT_ALL, NULL);
/*Create a label and position it above the text box*/
lv_obj_t * pwd_label = lv_label_create(lv_scr_act());
lv_label_set_text(pwd_label, "Password:");
lv_obj_align_to(pwd_label, pwd_ta, LV_ALIGN_OUT_TOP_LEFT, 0, 0);
/*Create the one-line mode text area*/
lv_obj_t * text_ta = lv_textarea_create(lv_scr_act());
lv_textarea_set_one_line(text_ta, true);
lv_textarea_set_password_mode(text_ta, false);
lv_obj_set_width(text_ta, lv_pct(40));
lv_obj_add_event_cb(text_ta, ta_event_cb, LV_EVENT_ALL, NULL);
lv_obj_align(text_ta, LV_ALIGN_TOP_RIGHT, -5, 20);
/*Create a label and position it above the text box*/
lv_obj_t * oneline_label = lv_label_create(lv_scr_act());
lv_label_set_text(oneline_label, "Text:");
lv_obj_align_to(oneline_label, text_ta, LV_ALIGN_OUT_TOP_LEFT, 0, 0);
/*Create a keyboard*/
kb = lv_keyboard_create(lv_scr_act());
lv_obj_set_size(kb, LV_HOR_RES, LV_VER_RES / 2);
lv_keyboard_set_textarea(kb, pwd_ta); /*Focus it on one of the text areas to start*/
}
static void ta_event_cb(lv_event_t * e)
{
lv_event_code_t code = lv_event_get_code(e);
lv_obj_t * ta = lv_event_get_target(e);
if(code == LV_EVENT_CLICKED || code == LV_EVENT_FOCUSED) {
/*Focus on the clicked text area*/
if(kb != NULL) lv_keyboard_set_textarea(kb, ta);
}
else if(code == LV_EVENT_READY) {
LV_LOG_USER("Ready, current text: %s", lv_textarea_get_text(ta));
}
}
#endif
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/textarea/lv_example_textarea_2.c | C | apache-2.0 | 2,046 |
def ta_event_cb(e):
code = e.get_code()
ta = e.get_target()
if code == lv.EVENT.CLICKED or code == lv.EVENT.FOCUSED:
# Focus on the clicked text area
if kb != None:
kb.set_textarea(ta)
elif code == lv.EVENT.READY:
print("Ready, current text: " + ta.get_text())
# Create the password box
LV_HOR_RES = lv.scr_act().get_disp().driver.hor_res
LV_VER_RES = lv.scr_act().get_disp().driver.ver_res
pwd_ta = lv.textarea(lv.scr_act())
pwd_ta.set_text("")
pwd_ta.set_password_mode(True)
pwd_ta.set_one_line(True)
pwd_ta.set_width(LV_HOR_RES // 2 - 20)
pwd_ta.set_pos(5, 20)
pwd_ta.add_event_cb(ta_event_cb, lv.EVENT.ALL, None)
# Create a label and position it above the text box
pwd_label = lv.label(lv.scr_act())
pwd_label.set_text("Password:")
pwd_label.align_to(pwd_ta, lv.ALIGN.OUT_TOP_LEFT, 0, 0)
# Create the one-line mode text area
text_ta = lv.textarea(lv.scr_act())
text_ta.set_width(LV_HOR_RES // 2 - 20)
text_ta.set_one_line(True)
text_ta.add_event_cb(ta_event_cb, lv.EVENT.ALL, None)
text_ta.set_password_mode(False)
text_ta.align(lv.ALIGN.TOP_RIGHT, -5, 20)
# Create a label and position it above the text box
oneline_label = lv.label(lv.scr_act())
oneline_label.set_text("Text:")
oneline_label.align_to(text_ta, lv.ALIGN.OUT_TOP_LEFT, 0, 0)
# Create a keyboard
kb = lv.keyboard(lv.scr_act())
kb.set_size(LV_HOR_RES, LV_VER_RES // 2)
kb.set_textarea(pwd_ta) # Focus it on one of the text areas to start
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/textarea/lv_example_textarea_2.py | Python | apache-2.0 | 1,470 |
#include "../../lv_examples.h"
#if LV_USE_TEXTAREA && LV_USE_KEYBOARD && LV_BUILD_EXAMPLES
static void ta_event_cb(lv_event_t * e);
static lv_obj_t * kb;
/**
* Automatically format text like a clock. E.g. "12:34"
* Add the ':' automatically.
*/
void lv_example_textarea_3(void)
{
/*Create the text area*/
lv_obj_t * ta = lv_textarea_create(lv_scr_act());
lv_obj_add_event_cb(ta, ta_event_cb, LV_EVENT_VALUE_CHANGED, NULL);
lv_textarea_set_accepted_chars(ta, "0123456789:");
lv_textarea_set_max_length(ta, 5);
lv_textarea_set_one_line(ta, true);
lv_textarea_set_text(ta, "");
/*Create a keyboard*/
kb = lv_keyboard_create(lv_scr_act());
lv_obj_set_size(kb, LV_HOR_RES, LV_VER_RES / 2);
lv_keyboard_set_mode(kb, LV_KEYBOARD_MODE_NUMBER);
lv_keyboard_set_textarea(kb, ta);
}
static void ta_event_cb(lv_event_t * e)
{
lv_obj_t * ta = lv_event_get_target(e);
const char * txt = lv_textarea_get_text(ta);
if(txt[0] >= '0' && txt[0] <= '9' &&
txt[1] >= '0' && txt[1] <= '9' &&
txt[2] != ':')
{
lv_textarea_set_cursor_pos(ta, 2);
lv_textarea_add_char(ta, ':');
}
}
#endif
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/textarea/lv_example_textarea_3.c | C | apache-2.0 | 1,174 |
def ta_event_cb(e):
ta = e.get_target()
txt = ta.get_text()
# print(txt)
pos = ta.get_cursor_pos()
# print("cursor pos: ",pos)
# find position of ":" in text
colon_pos= txt.find(":")
# if there are more than 2 digits before the colon, remove the last one entered
if colon_pos == 3:
ta.del_char()
if colon_pos != -1:
# if there are more than 3 digits after the ":" remove the last one entered
rest = txt[colon_pos:]
if len(rest) > 3:
ta.del_char()
if len(txt) < 2:
return
if ":" in txt:
return
if txt[0] >= '0' and txt[0] <= '9' and \
txt[1] >= '0' and txt[1] <= '9':
if len(txt) == 2 or txt[2] != ':' :
ta.set_cursor_pos(2)
ta.add_char(ord(':'))
#
# Automatically format text like a clock. E.g. "12:34"
# Add the ':' automatically
#
# Create the text area
LV_HOR_RES = lv.scr_act().get_disp().driver.hor_res
LV_VER_RES = lv.scr_act().get_disp().driver.ver_res
ta = lv.textarea(lv.scr_act())
ta.add_event_cb(ta_event_cb, lv.EVENT.VALUE_CHANGED, None)
ta.set_accepted_chars("0123456789:")
ta.set_max_length(5)
ta.set_one_line(True)
ta.set_text("")
ta.add_state(lv.STATE.FOCUSED)
# Create a keyboard
kb = lv.keyboard(lv.scr_act())
kb.set_size(LV_HOR_RES, LV_VER_RES // 2)
kb.set_mode(lv.keyboard.MODE.NUMBER)
kb.set_textarea(ta)
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/textarea/lv_example_textarea_3.py | Python | apache-2.0 | 1,397 |
#include "../../lv_examples.h"
#if LV_USE_TILEVIEW && LV_BUILD_EXAMPLES
/**
* Create a 2x2 tile view and allow scrolling only in an "L" shape.
* Demonstrate scroll chaining with a long list that
* scrolls the tile view when it cant't be scrolled further.
*/
void lv_example_tileview_1(void)
{
lv_obj_t *tv = lv_tileview_create(lv_scr_act());
/*Tile1: just a label*/
lv_obj_t * tile1 = lv_tileview_add_tile(tv, 0, 0, LV_DIR_BOTTOM);
lv_obj_t * label = lv_label_create(tile1);
lv_label_set_text(label, "Scroll down");
lv_obj_center(label);
/*Tile2: a button*/
lv_obj_t * tile2 = lv_tileview_add_tile(tv, 0, 1, LV_DIR_TOP | LV_DIR_RIGHT);
lv_obj_t * btn = lv_btn_create(tile2);
label = lv_label_create(btn);
lv_label_set_text(label, "Scroll up or right");
lv_obj_set_size(btn, LV_SIZE_CONTENT, LV_SIZE_CONTENT);
lv_obj_center(btn);
/*Tile3: a list*/
lv_obj_t * tile3 = lv_tileview_add_tile(tv, 1, 1, LV_DIR_LEFT);
lv_obj_t * list = lv_list_create(tile3);
lv_obj_set_size(list, LV_PCT(100), LV_PCT(100));
lv_list_add_btn(list, NULL, "One");
lv_list_add_btn(list, NULL, "Two");
lv_list_add_btn(list, NULL, "Three");
lv_list_add_btn(list, NULL, "Four");
lv_list_add_btn(list, NULL, "Five");
lv_list_add_btn(list, NULL, "Six");
lv_list_add_btn(list, NULL, "Seven");
lv_list_add_btn(list, NULL, "Eight");
lv_list_add_btn(list, NULL, "Nine");
lv_list_add_btn(list, NULL, "Ten");
}
#endif
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/tileview/lv_example_tileview_1.c | C | apache-2.0 | 1,503 |
#
# Create a 2x2 tile view and allow scrolling only in an "L" shape.
# Demonstrate scroll chaining with a long list that
# scrolls the tile view when it cant't be scrolled further.
#
tv = lv.tileview(lv.scr_act())
# Tile1: just a label
tile1 = tv.add_tile(0, 0, lv.DIR.BOTTOM)
label = lv.label(tile1)
label.set_text("Scroll down")
label.center()
# Tile2: a button
tile2 = tv.add_tile(0, 1, lv.DIR.TOP | lv.DIR.RIGHT)
btn = lv.btn(tile2)
label = lv.label(btn)
label.set_text("Scroll up or right")
btn.set_size(lv.SIZE.CONTENT, lv.SIZE.CONTENT)
btn.center()
# Tile3: a list
tile3 = tv.add_tile(1, 1, lv.DIR.LEFT)
list = lv.list(tile3)
list.set_size(lv.pct(100), lv.pct(100))
list.add_btn(None, "One")
list.add_btn(None, "Two")
list.add_btn(None, "Three")
list.add_btn(None, "Four")
list.add_btn(None, "Five")
list.add_btn(None, "Six")
list.add_btn(None, "Seven")
list.add_btn(None, "Eight")
list.add_btn(None, "Nine")
list.add_btn(None, "Ten")
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/tileview/lv_example_tileview_1.py | Python | apache-2.0 | 951 |
#include "../../lv_examples.h"
#if LV_USE_WIN && LV_BUILD_EXAMPLES
static void event_handler(lv_event_t * e)
{
lv_obj_t * obj = lv_event_get_target(e);
LV_LOG_USER("Button %d clicked", (int)lv_obj_get_index(obj));
}
void lv_example_win_1(void)
{
lv_obj_t * win = lv_win_create(lv_scr_act(), 40);
lv_obj_t * btn;
btn = lv_win_add_btn(win, LV_SYMBOL_LEFT, 40);
lv_obj_add_event_cb(btn, event_handler, LV_EVENT_CLICKED, NULL);
lv_win_add_title(win, "A title");
btn = lv_win_add_btn(win, LV_SYMBOL_RIGHT, 40);
lv_obj_add_event_cb(btn, event_handler, LV_EVENT_CLICKED, NULL);
btn = lv_win_add_btn(win, LV_SYMBOL_CLOSE, 60);
lv_obj_add_event_cb(btn, event_handler, LV_EVENT_CLICKED, NULL);
lv_obj_t * cont = lv_win_get_content(win); /*Content can be aded here*/
lv_obj_t * label = lv_label_create(cont);
lv_label_set_text(label, "This is\n"
"a pretty\n"
"long text\n"
"to see how\n"
"the window\n"
"becomes\n"
"scrollable.\n"
"\n"
"\n"
"Some more\n"
"text to be\n"
"sure it\n"
"overflows. :)");
}
#endif
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/win/lv_example_win_1.c | C | apache-2.0 | 1,414 |
def event_handler(e):
code = e.get_code()
obj = e.get_target()
if code == lv.EVENT.CLICKED:
print("Button {:d} clicked".format(obj.get_child_id()))
win = lv.win(lv.scr_act(), 60)
btn1 = win.add_btn(lv.SYMBOL.LEFT, 40)
btn1.add_event_cb(event_handler,lv.EVENT.ALL, None)
win.add_title("A title")
btn2=win.add_btn(lv.SYMBOL.RIGHT, 40)
btn2.add_event_cb(event_handler,lv.EVENT.ALL, None)
btn3 = win.add_btn(lv.SYMBOL.CLOSE, 60)
btn3.add_event_cb(event_handler,lv.EVENT.ALL, None)
cont = win.get_content() #Content can be aded here
label = lv.label(cont)
label.set_text("""This is
a pretty
long text
to see how
the window
becomes
scrollable.
We need
quite some text
and we will
even put
some more
text to be
sure it
overflows.
""")
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/examples/widgets/win/lv_example_win_1.py | Python | apache-2.0 | 756 |
/**
* @file lv_conf.h
* Configuration file for v8.1.0
*/
/*
* Copy this file as `lv_conf.h`
* 1. simply next to the `lvgl` folder
* 2. or any other places and
* - define `LV_CONF_INCLUDE_SIMPLE`
* - add the path as include path
*/
/* clang-format off */
#if 0 /*Set it to "1" to enable content*/
#ifndef LV_CONF_H
#define LV_CONF_H
#include <stdint.h>
/*====================
COLOR SETTINGS
*====================*/
/*Color depth: 1 (1 byte per pixel), 8 (RGB332), 16 (RGB565), 32 (ARGB8888)*/
#define LV_COLOR_DEPTH 16
/*Swap the 2 bytes of RGB565 color. Useful if the display has an 8-bit interface (e.g. SPI)*/
#define LV_COLOR_16_SWAP 0
/*Enable more complex drawing routines to manage screens transparency.
*Can be used if the UI is above another layer, e.g. an OSD menu or video player.
*Requires `LV_COLOR_DEPTH = 32` colors and the screen's `bg_opa` should be set to non LV_OPA_COVER value*/
#define LV_COLOR_SCREEN_TRANSP 0
/* Adjust color mix functions rounding. GPUs might calculate color mix (blending) differently.
* 0: round down, 64: round up from x.75, 128: round up from half, 192: round up from x.25, 254: round up */
#define LV_COLOR_MIX_ROUND_OFS (LV_COLOR_DEPTH == 32 ? 0: 128)
/*Images pixels with this color will not be drawn if they are chroma keyed)*/
#define LV_COLOR_CHROMA_KEY lv_color_hex(0x00ff00) /*pure green*/
/*=========================
MEMORY SETTINGS
*=========================*/
/*1: use custom malloc/free, 0: use the built-in `lv_mem_alloc()` and `lv_mem_free()`*/
#define LV_MEM_CUSTOM 0
#if LV_MEM_CUSTOM == 0
/*Size of the memory available for `lv_mem_alloc()` in bytes (>= 2kB)*/
# define LV_MEM_SIZE (32U * 1024U) /*[bytes]*/
/*Set an address for the memory pool instead of allocating it as a normal array. Can be in external SRAM too.*/
# define LV_MEM_ADR 0 /*0: unused*/
/*Instead of an address give a memory allocator that will be called to get a memory pool for LVGL. E.g. my_malloc*/
#if LV_MEM_ADR == 0
//#define LV_MEM_POOL_INCLUDE your_alloc_library /* Uncomment if using an external allocator*/
//#define LV_MEM_POOL_ALLOC your_alloc /* Uncomment if using an external allocator*/
#endif
#else /*LV_MEM_CUSTOM*/
# define LV_MEM_CUSTOM_INCLUDE <stdlib.h> /*Header for the dynamic memory function*/
# define LV_MEM_CUSTOM_ALLOC malloc
# define LV_MEM_CUSTOM_FREE free
# define LV_MEM_CUSTOM_REALLOC realloc
#endif /*LV_MEM_CUSTOM*/
/*Number of the intermediate memory buffer used during rendering and other internal processing mechanisms.
*You will see an error log message if there wasn't enough buffers. */
#define LV_MEM_BUF_MAX_NUM 16
/*Use the standard `memcpy` and `memset` instead of LVGL's own functions. (Might or might not be faster).*/
#define LV_MEMCPY_MEMSET_STD 0
/*====================
HAL SETTINGS
*====================*/
/*Default display refresh period. LVG will redraw changed areas with this period time*/
#define LV_DISP_DEF_REFR_PERIOD 30 /*[ms]*/
/*Input device read period in milliseconds*/
#define LV_INDEV_DEF_READ_PERIOD 30 /*[ms]*/
/*Use a custom tick source that tells the elapsed time in milliseconds.
*It removes the need to manually update the tick with `lv_tick_inc()`)*/
#define LV_TICK_CUSTOM 0
#if LV_TICK_CUSTOM
#define LV_TICK_CUSTOM_INCLUDE "Arduino.h" /*Header for the system time function*/
#define LV_TICK_CUSTOM_SYS_TIME_EXPR (millis()) /*Expression evaluating to current system time in ms*/
#endif /*LV_TICK_CUSTOM*/
/*Default Dot Per Inch. Used to initialize default sizes such as widgets sized, style paddings.
*(Not so important, you can adjust it to modify default sizes and spaces)*/
#define LV_DPI_DEF 130 /*[px/inch]*/
/*=======================
* FEATURE CONFIGURATION
*=======================*/
/*-------------
* Drawing
*-----------*/
/*Enable complex draw engine.
*Required to draw shadow, gradient, rounded corners, circles, arc, skew lines, image transformations or any masks*/
#define LV_DRAW_COMPLEX 1
#if LV_DRAW_COMPLEX != 0
/*Allow buffering some shadow calculation.
*LV_SHADOW_CACHE_SIZE is the max. shadow size to buffer, where shadow size is `shadow_width + radius`
*Caching has LV_SHADOW_CACHE_SIZE^2 RAM cost*/
#define LV_SHADOW_CACHE_SIZE 0
/* Set number of maximally cached circle data.
* The circumference of 1/4 circle are saved for anti-aliasing
* radius * 4 bytes are used per circle (the most often used radiuses are saved)
* 0: to disable caching */
#define LV_CIRCLE_CACHE_SIZE 4
#endif /*LV_DRAW_COMPLEX*/
/*Default image cache size. Image caching keeps the images opened.
*If only the built-in image formats are used there is no real advantage of caching. (I.e. if no new image decoder is added)
*With complex image decoders (e.g. PNG or JPG) caching can save the continuous open/decode of images.
*However the opened images might consume additional RAM.
*0: to disable caching*/
#define LV_IMG_CACHE_DEF_SIZE 0
/*Maximum buffer size to allocate for rotation. Only used if software rotation is enabled in the display driver.*/
#define LV_DISP_ROT_MAX_BUF (10*1024)
/*-------------
* GPU
*-----------*/
/*Use STM32's DMA2D (aka Chrom Art) GPU*/
#define LV_USE_GPU_STM32_DMA2D 0
#if LV_USE_GPU_STM32_DMA2D
/*Must be defined to include path of CMSIS header of target processor
e.g. "stm32f769xx.h" or "stm32f429xx.h"*/
#define LV_GPU_DMA2D_CMSIS_INCLUDE
#endif
/*Use NXP's PXP GPU iMX RTxxx platforms*/
#define LV_USE_GPU_NXP_PXP 0
#if LV_USE_GPU_NXP_PXP
/*1: Add default bare metal and FreeRTOS interrupt handling routines for PXP (lv_gpu_nxp_pxp_osa.c)
* and call lv_gpu_nxp_pxp_init() automatically during lv_init(). Note that symbol SDK_OS_FREE_RTOS
* has to be defined in order to use FreeRTOS OSA, otherwise bare-metal implementation is selected.
*0: lv_gpu_nxp_pxp_init() has to be called manually before lv_init()
*/
#define LV_USE_GPU_NXP_PXP_AUTO_INIT 0
#endif
/*Use NXP's VG-Lite GPU iMX RTxxx platforms*/
#define LV_USE_GPU_NXP_VG_LITE 0
/*Use exnternal renderer*/
#define LV_USE_EXTERNAL_RENDERER 0
/*Use SDL renderer API. Requires LV_USE_EXTERNAL_RENDERER*/
#define LV_USE_GPU_SDL 0
#if LV_USE_GPU_SDL
# define LV_GPU_SDL_INCLUDE_PATH <SDL2/SDL.h>
#endif
/*-------------
* Logging
*-----------*/
/*Enable the log module*/
#define LV_USE_LOG 0
#if LV_USE_LOG
/*How important log should be added:
*LV_LOG_LEVEL_TRACE A lot of logs to give detailed information
*LV_LOG_LEVEL_INFO Log important events
*LV_LOG_LEVEL_WARN Log if something unwanted happened but didn't cause a problem
*LV_LOG_LEVEL_ERROR Only critical issue, when the system may fail
*LV_LOG_LEVEL_USER Only logs added by the user
*LV_LOG_LEVEL_NONE Do not log anything*/
# define LV_LOG_LEVEL LV_LOG_LEVEL_WARN
/*1: Print the log with 'printf';
*0: User need to register a callback with `lv_log_register_print_cb()`*/
# define LV_LOG_PRINTF 0
/*Enable/disable LV_LOG_TRACE in modules that produces a huge number of logs*/
# define LV_LOG_TRACE_MEM 1
# define LV_LOG_TRACE_TIMER 1
# define LV_LOG_TRACE_INDEV 1
# define LV_LOG_TRACE_DISP_REFR 1
# define LV_LOG_TRACE_EVENT 1
# define LV_LOG_TRACE_OBJ_CREATE 1
# define LV_LOG_TRACE_LAYOUT 1
# define LV_LOG_TRACE_ANIM 1
#endif /*LV_USE_LOG*/
/*-------------
* Asserts
*-----------*/
/*Enable asserts if an operation is failed or an invalid data is found.
*If LV_USE_LOG is enabled an error message will be printed on failure*/
#define LV_USE_ASSERT_NULL 1 /*Check if the parameter is NULL. (Very fast, recommended)*/
#define LV_USE_ASSERT_MALLOC 1 /*Checks is the memory is successfully allocated or no. (Very fast, recommended)*/
#define LV_USE_ASSERT_STYLE 0 /*Check if the styles are properly initialized. (Very fast, recommended)*/
#define LV_USE_ASSERT_MEM_INTEGRITY 0 /*Check the integrity of `lv_mem` after critical operations. (Slow)*/
#define LV_USE_ASSERT_OBJ 0 /*Check the object's type and existence (e.g. not deleted). (Slow)*/
/*Add a custom handler when assert happens e.g. to restart the MCU*/
#define LV_ASSERT_HANDLER_INCLUDE <stdint.h>
#define LV_ASSERT_HANDLER while(1); /*Halt by default*/
/*-------------
* Others
*-----------*/
/*1: Show CPU usage and FPS count in the right bottom corner*/
#define LV_USE_PERF_MONITOR 0
#if LV_USE_PERF_MONITOR
#define LV_USE_PERF_MONITOR_POS LV_ALIGN_BOTTOM_RIGHT
#endif
/*1: Show the used memory and the memory fragmentation in the left bottom corner
* Requires LV_MEM_CUSTOM = 0*/
#define LV_USE_MEM_MONITOR 0
#if LV_USE_PERF_MONITOR
#define LV_USE_MEM_MONITOR_POS LV_ALIGN_BOTTOM_LEFT
#endif
/*1: Draw random colored rectangles over the redrawn areas*/
#define LV_USE_REFR_DEBUG 0
/*Change the built in (v)snprintf functions*/
#define LV_SPRINTF_CUSTOM 0
#if LV_SPRINTF_CUSTOM
# define LV_SPRINTF_INCLUDE <stdio.h>
# define lv_snprintf snprintf
# define lv_vsnprintf vsnprintf
#else /*LV_SPRINTF_CUSTOM*/
# define LV_SPRINTF_USE_FLOAT 0
#endif /*LV_SPRINTF_CUSTOM*/
#define LV_USE_USER_DATA 1
/*Garbage Collector settings
*Used if lvgl is bound to higher level language and the memory is managed by that language*/
#define LV_ENABLE_GC 0
#if LV_ENABLE_GC != 0
# define LV_GC_INCLUDE "gc.h" /*Include Garbage Collector related things*/
#endif /*LV_ENABLE_GC*/
/*=====================
* COMPILER SETTINGS
*====================*/
/*For big endian systems set to 1*/
#define LV_BIG_ENDIAN_SYSTEM 0
/*Define a custom attribute to `lv_tick_inc` function*/
#define LV_ATTRIBUTE_TICK_INC
/*Define a custom attribute to `lv_timer_handler` function*/
#define LV_ATTRIBUTE_TIMER_HANDLER
/*Define a custom attribute to `lv_disp_flush_ready` function*/
#define LV_ATTRIBUTE_FLUSH_READY
/*Required alignment size for buffers*/
#define LV_ATTRIBUTE_MEM_ALIGN_SIZE 1
/*Will be added where memories needs to be aligned (with -Os data might not be aligned to boundary by default).
* E.g. __attribute__((aligned(4)))*/
#define LV_ATTRIBUTE_MEM_ALIGN
/*Attribute to mark large constant arrays for example font's bitmaps*/
#define LV_ATTRIBUTE_LARGE_CONST
/*Complier prefix for a big array declaration in RAM*/
#define LV_ATTRIBUTE_LARGE_RAM_ARRAY
/*Place performance critical functions into a faster memory (e.g RAM)*/
#define LV_ATTRIBUTE_FAST_MEM
/*Prefix variables that are used in GPU accelerated operations, often these need to be placed in RAM sections that are DMA accessible*/
#define LV_ATTRIBUTE_DMA
/*Export integer constant to binding. This macro is used with constants in the form of LV_<CONST> that
*should also appear on LVGL binding API such as Micropython.*/
#define LV_EXPORT_CONST_INT(int_value) struct _silence_gcc_warning /*The default value just prevents GCC warning*/
/*Extend the default -32k..32k coordinate range to -4M..4M by using int32_t for coordinates instead of int16_t*/
#define LV_USE_LARGE_COORD 0
/*==================
* FONT USAGE
*===================*/
/*Montserrat fonts with ASCII range and some symbols using bpp = 4
*https://fonts.google.com/specimen/Montserrat*/
#define LV_FONT_MONTSERRAT_8 0
#define LV_FONT_MONTSERRAT_10 0
#define LV_FONT_MONTSERRAT_12 0
#define LV_FONT_MONTSERRAT_14 1
#define LV_FONT_MONTSERRAT_16 0
#define LV_FONT_MONTSERRAT_18 0
#define LV_FONT_MONTSERRAT_20 0
#define LV_FONT_MONTSERRAT_22 0
#define LV_FONT_MONTSERRAT_24 0
#define LV_FONT_MONTSERRAT_26 0
#define LV_FONT_MONTSERRAT_28 0
#define LV_FONT_MONTSERRAT_30 0
#define LV_FONT_MONTSERRAT_32 0
#define LV_FONT_MONTSERRAT_34 0
#define LV_FONT_MONTSERRAT_36 0
#define LV_FONT_MONTSERRAT_38 0
#define LV_FONT_MONTSERRAT_40 0
#define LV_FONT_MONTSERRAT_42 0
#define LV_FONT_MONTSERRAT_44 0
#define LV_FONT_MONTSERRAT_46 0
#define LV_FONT_MONTSERRAT_48 0
/*Demonstrate special features*/
#define LV_FONT_MONTSERRAT_12_SUBPX 0
#define LV_FONT_MONTSERRAT_28_COMPRESSED 0 /*bpp = 3*/
#define LV_FONT_DEJAVU_16_PERSIAN_HEBREW 0 /*Hebrew, Arabic, Perisan letters and all their forms*/
#define LV_FONT_SIMSUN_16_CJK 0 /*1000 most common CJK radicals*/
/*Pixel perfect monospace fonts*/
#define LV_FONT_UNSCII_8 0
#define LV_FONT_UNSCII_16 0
/*Optionally declare custom fonts here.
*You can use these fonts as default font too and they will be available globally.
*E.g. #define LV_FONT_CUSTOM_DECLARE LV_FONT_DECLARE(my_font_1) LV_FONT_DECLARE(my_font_2)*/
#define LV_FONT_CUSTOM_DECLARE
/*Always set a default font*/
#define LV_FONT_DEFAULT &lv_font_montserrat_14
/*Enable handling large font and/or fonts with a lot of characters.
*The limit depends on the font size, font face and bpp.
*Compiler error will be triggered if a font needs it.*/
#define LV_FONT_FMT_TXT_LARGE 0
/*Enables/disables support for compressed fonts.*/
#define LV_USE_FONT_COMPRESSED 0
/*Enable subpixel rendering*/
#define LV_USE_FONT_SUBPX 0
#if LV_USE_FONT_SUBPX
/*Set the pixel order of the display. Physical order of RGB channels. Doesn't matter with "normal" fonts.*/
#define LV_FONT_SUBPX_BGR 0 /*0: RGB; 1:BGR order*/
#endif
/*=================
* TEXT SETTINGS
*=================*/
/**
* Select a character encoding for strings.
* Your IDE or editor should have the same character encoding
* - LV_TXT_ENC_UTF8
* - LV_TXT_ENC_ASCII
*/
#define LV_TXT_ENC LV_TXT_ENC_UTF8
/*Can break (wrap) texts on these chars*/
#define LV_TXT_BREAK_CHARS " ,.;:-_"
/*If a word is at least this long, will break wherever "prettiest"
*To disable, set to a value <= 0*/
#define LV_TXT_LINE_BREAK_LONG_LEN 0
/*Minimum number of characters in a long word to put on a line before a break.
*Depends on LV_TXT_LINE_BREAK_LONG_LEN.*/
#define LV_TXT_LINE_BREAK_LONG_PRE_MIN_LEN 3
/*Minimum number of characters in a long word to put on a line after a break.
*Depends on LV_TXT_LINE_BREAK_LONG_LEN.*/
#define LV_TXT_LINE_BREAK_LONG_POST_MIN_LEN 3
/*The control character to use for signalling text recoloring.*/
#define LV_TXT_COLOR_CMD "#"
/*Support bidirectional texts. Allows mixing Left-to-Right and Right-to-Left texts.
*The direction will be processed according to the Unicode Bidirectional Algorithm:
*https://www.w3.org/International/articles/inline-bidi-markup/uba-basics*/
#define LV_USE_BIDI 0
#if LV_USE_BIDI
/*Set the default direction. Supported values:
*`LV_BASE_DIR_LTR` Left-to-Right
*`LV_BASE_DIR_RTL` Right-to-Left
*`LV_BASE_DIR_AUTO` detect texts base direction*/
#define LV_BIDI_BASE_DIR_DEF LV_BASE_DIR_AUTO
#endif
/*Enable Arabic/Persian processing
*In these languages characters should be replaced with an other form based on their position in the text*/
#define LV_USE_ARABIC_PERSIAN_CHARS 0
/*==================
* WIDGET USAGE
*================*/
/*Documentation of the widgets: https://docs.lvgl.io/latest/en/html/widgets/index.html*/
#define LV_USE_ARC 1
#define LV_USE_ANIMIMG 1
#define LV_USE_BAR 1
#define LV_USE_BTN 1
#define LV_USE_BTNMATRIX 1
#define LV_USE_CANVAS 1
#define LV_USE_CHECKBOX 1
#define LV_USE_DROPDOWN 1 /*Requires: lv_label*/
#define LV_USE_IMG 1 /*Requires: lv_label*/
#define LV_USE_LABEL 1
#if LV_USE_LABEL
# define LV_LABEL_TEXT_SELECTION 1 /*Enable selecting text of the label*/
# define LV_LABEL_LONG_TXT_HINT 1 /*Store some extra info in labels to speed up drawing of very long texts*/
#endif
#define LV_USE_LINE 1
#define LV_USE_ROLLER 1 /*Requires: lv_label*/
#if LV_USE_ROLLER
# define LV_ROLLER_INF_PAGES 7 /*Number of extra "pages" when the roller is infinite*/
#endif
#define LV_USE_SLIDER 1 /*Requires: lv_bar*/
#define LV_USE_SWITCH 1
#define LV_USE_TEXTAREA 1 /*Requires: lv_label*/
#if LV_USE_TEXTAREA != 0
# define LV_TEXTAREA_DEF_PWD_SHOW_TIME 1500 /*ms*/
#endif
#define LV_USE_TABLE 1
/*==================
* EXTRA COMPONENTS
*==================*/
/*-----------
* Widgets
*----------*/
#define LV_USE_CALENDAR 1
#if LV_USE_CALENDAR
# define LV_CALENDAR_WEEK_STARTS_MONDAY 0
# if LV_CALENDAR_WEEK_STARTS_MONDAY
# define LV_CALENDAR_DEFAULT_DAY_NAMES {"Mo", "Tu", "We", "Th", "Fr", "Sa", "Su"}
# else
# define LV_CALENDAR_DEFAULT_DAY_NAMES {"Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"}
# endif
# define LV_CALENDAR_DEFAULT_MONTH_NAMES {"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"}
# define LV_USE_CALENDAR_HEADER_ARROW 1
# define LV_USE_CALENDAR_HEADER_DROPDOWN 1
#endif /*LV_USE_CALENDAR*/
#define LV_USE_CHART 1
#define LV_USE_COLORWHEEL 1
#define LV_USE_IMGBTN 1
#define LV_USE_KEYBOARD 1
#define LV_USE_LED 1
#define LV_USE_LIST 1
#define LV_USE_METER 1
#define LV_USE_MSGBOX 1
#define LV_USE_SPINBOX 1
#define LV_USE_SPINNER 1
#define LV_USE_TABVIEW 1
#define LV_USE_TILEVIEW 1
#define LV_USE_WIN 1
#define LV_USE_SPAN 1
#if LV_USE_SPAN
/*A line text can contain maximum num of span descriptor */
# define LV_SPAN_SNIPPET_STACK_SIZE 64
#endif
/*-----------
* Themes
*----------*/
/*A simple, impressive and very complete theme*/
#define LV_USE_THEME_DEFAULT 1
#if LV_USE_THEME_DEFAULT
/*0: Light mode; 1: Dark mode*/
# define LV_THEME_DEFAULT_DARK 0
/*1: Enable grow on press*/
# define LV_THEME_DEFAULT_GROW 1
/*Default transition time in [ms]*/
# define LV_THEME_DEFAULT_TRANSITION_TIME 80
#endif /*LV_USE_THEME_DEFAULT*/
/*A very simple theme that is a good starting point for a custom theme*/
#define LV_USE_THEME_BASIC 1
/*A theme designed for monochrome displays*/
#define LV_USE_THEME_MONO 1
/*-----------
* Layouts
*----------*/
/*A layout similar to Flexbox in CSS.*/
#define LV_USE_FLEX 1
/*A layout similar to Grid in CSS.*/
#define LV_USE_GRID 1
/*---------------------
* 3rd party libraries
*--------------------*/
/*File system interfaces for common APIs
*To enable set a driver letter for that API*/
#define LV_USE_FS_STDIO '\0' /*Uses fopen, fread, etc*/
//#define LV_FS_STDIO_PATH "/home/john/" /*Set the working directory. If commented it will be "./" */
#define LV_USE_FS_POSIX '\0' /*Uses open, read, etc*/
//#define LV_FS_POSIX_PATH "/home/john/" /*Set the working directory. If commented it will be "./" */
#define LV_USE_FS_WIN32 '\0' /*Uses CreateFile, ReadFile, etc*/
//#define LV_FS_WIN32_PATH "C:\\Users\\john\\" /*Set the working directory. If commented it will be ".\\" */
#define LV_USE_FS_FATFS '\0' /*Uses f_open, f_read, etc*/
/*PNG decoder library*/
#define LV_USE_PNG 0
/*BMP decoder library*/
#define LV_USE_BMP 0
/* JPG + split JPG decoder library.
* Split JPG is a custom format optimized for embedded systems. */
#define LV_USE_SJPG 0
/*GIF decoder library*/
#define LV_USE_GIF 0
/*QR code library*/
#define LV_USE_QRCODE 0
/*FreeType library*/
#define LV_USE_FREETYPE 0
#if LV_USE_FREETYPE
/*Memory used by FreeType to cache characters [bytes] (-1: no caching)*/
# define LV_FREETYPE_CACHE_SIZE (16 * 1024)
#endif
/*Rlottie library*/
#define LV_USE_RLOTTIE 0
/*-----------
* Others
*----------*/
/*1: Enable API to take snapshot for object*/
#define LV_USE_SNAPSHOT 1
/*==================
* EXAMPLES
*==================*/
/*Enable the examples to be built with the library*/
#define LV_BUILD_EXAMPLES 1
/*--END OF LV_CONF_H--*/
#endif /*LV_CONF_H*/
#endif /*End of "Content enable"*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/lv_conf_template.h | C | apache-2.0 | 19,460 |
/**
* @file lvgl.h
* Include all LVGL related headers
*/
#ifndef LVGL_H
#define LVGL_H
#ifdef __cplusplus
extern "C" {
#endif
/***************************
* CURRENT VERSION OF LVGL
***************************/
#define LVGL_VERSION_MAJOR 8
#define LVGL_VERSION_MINOR 1
#define LVGL_VERSION_PATCH 0
#define LVGL_VERSION_INFO ""
/*********************
* INCLUDES
*********************/
#include "src/misc/lv_log.h"
#include "src/misc/lv_timer.h"
#include "src/misc/lv_math.h"
#include "src/misc/lv_mem.h"
#include "src/misc/lv_async.h"
#include "src/misc/lv_anim_timeline.h"
#include "src/misc/lv_printf.h"
#include "src/hal/lv_hal.h"
#include "src/core/lv_obj.h"
#include "src/core/lv_group.h"
#include "src/core/lv_indev.h"
#include "src/core/lv_refr.h"
#include "src/core/lv_disp.h"
#include "src/core/lv_theme.h"
#include "src/font/lv_font.h"
#include "src/font/lv_font_loader.h"
#include "src/font/lv_font_fmt_txt.h"
#include "src/widgets/lv_arc.h"
#include "src/widgets/lv_btn.h"
#include "src/widgets/lv_img.h"
#include "src/widgets/lv_label.h"
#include "src/widgets/lv_line.h"
#include "src/widgets/lv_table.h"
#include "src/widgets/lv_checkbox.h"
#include "src/widgets/lv_bar.h"
#include "src/widgets/lv_slider.h"
#include "src/widgets/lv_btnmatrix.h"
#include "src/widgets/lv_dropdown.h"
#include "src/widgets/lv_roller.h"
#include "src/widgets/lv_textarea.h"
#include "src/widgets/lv_canvas.h"
#include "src/widgets/lv_switch.h"
#include "src/draw/lv_draw.h"
#include "src/lv_api_map.h"
/*-----------------
* EXTRAS
*----------------*/
#include "src/extra/lv_extra.h"
#include "src/extra/widgets/lv_widgets.h"
#include "src/extra/layouts/lv_layouts.h"
#include "src/extra/themes/lv_themes.h"
#include "src/extra/others/lv_others.h"
#include "src/extra/libs/lv_libs.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* GLOBAL PROTOTYPES
**********************/
/**********************
* MACROS
**********************/
/** Gives 1 if the x.y.z version is supported in the current version
* Usage:
*
* - Require v6
* #if LV_VERSION_CHECK(6,0,0)
* new_func_in_v6();
* #endif
*
*
* - Require at least v5.3
* #if LV_VERSION_CHECK(5,3,0)
* new_feature_from_v5_3();
* #endif
*
*
* - Require v5.3.2 bugfixes
* #if LV_VERSION_CHECK(5,3,2)
* bugfix_in_v5_3_2();
* #endif
*
*/
#define LV_VERSION_CHECK(x,y,z) (x == LVGL_VERSION_MAJOR && (y < LVGL_VERSION_MINOR || (y == LVGL_VERSION_MINOR && z <= LVGL_VERSION_PATCH)))
/**
* Wrapper functions for VERSION macros
*/
static inline int lv_version_major(void)
{
return LVGL_VERSION_MAJOR;
}
static inline int lv_version_minor(void)
{
return LVGL_VERSION_MINOR;
}
static inline int lv_version_patch(void)
{
return LVGL_VERSION_PATCH;
}
static inline const char *lv_version_info(void)
{
return LVGL_VERSION_INFO;
}
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LVGL_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/lvgl.h | C | apache-2.0 | 3,012 |
include $(LVGL_DIR)/$(LVGL_DIR_NAME)/examples/examples.mk
include $(LVGL_DIR)/$(LVGL_DIR_NAME)/src/extra/extra.mk
include $(LVGL_DIR)/$(LVGL_DIR_NAME)/src/core/lv_core.mk
include $(LVGL_DIR)/$(LVGL_DIR_NAME)/src/draw/lv_draw.mk
include $(LVGL_DIR)/$(LVGL_DIR_NAME)/src/font/lv_font.mk
include $(LVGL_DIR)/$(LVGL_DIR_NAME)/src/gpu/lv_gpu.mk
include $(LVGL_DIR)/$(LVGL_DIR_NAME)/src/hal/lv_hal.mk
include $(LVGL_DIR)/$(LVGL_DIR_NAME)/src/misc/lv_misc.mk
include $(LVGL_DIR)/$(LVGL_DIR_NAME)/src/widgets/lv_widgets.mk
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/lvgl.mk | Makefile | apache-2.0 | 515 |
from building import *
import rtconfig
import os
import shutil
# get current dir path
cwd = GetCurrentDir()
src = []
inc = []
lvgl_cwd = cwd + '/../'
lvgl_src_cwd = lvgl_cwd + 'src/'
inc = inc + [lvgl_src_cwd]
for root, dirs, files in os.walk(lvgl_src_cwd):
for dir in dirs:
src = src + Glob(os.path.join(root,dir,'*.c'))
inc = inc + [os.path.join(root,dir)]
LOCAL_CCFLAGS = ''
if rtconfig.PLATFORM == 'gcc': # GCC
LOCAL_CCFLAGS += ' -std=c99'
elif rtconfig.PLATFORM == 'armcc': # Keil AC5
LOCAL_CCFLAGS += ' --c99 --gnu -g -W'
elif rtconfig.PLATFORM == 'armclang': # Keil AC6
LOCAL_CCFLAGS += ' -std=c99 -g -w'
group = DefineGroup('LVGL', src, depend = ['PKG_USING_LVGL'], CPPPATH = inc, LOCAL_CCFLAGS = LOCAL_CCFLAGS)
port_src = Glob('*.c')
port_inc = [cwd]
group = group + DefineGroup('LVGL-port', port_src, depend = ['PKG_USING_LVGL'], CPPPATH = port_inc)
list = os.listdir(cwd)
for d in list:
path = os.path.join(cwd, d)
if os.path.isfile(os.path.join(path, 'SConscript')):
group = group + SConscript(os.path.join(d, 'SConscript'))
#
# try:
# shutil.rmtree(os.path.join(lvgl_cwd, '.github'))
# shutil.rmtree(os.path.join(lvgl_cwd, 'docs'))
# shutil.rmtree(os.path.join(lvgl_cwd, 'scripts'))
# shutil.rmtree(os.path.join(lvgl_cwd, 'tests'))
# shutil.rmtree(os.path.join(lvgl_cwd, 'zephyr'))
# os.remove(os.path.join(lvgl_cwd, '.codecov.yml'))
# os.remove(os.path.join(lvgl_cwd, '.editorconfig'))
# os.remove(os.path.join(lvgl_cwd, '.gitignore'))
# os.remove(os.path.join(lvgl_cwd, '.gitmodules'))
# os.remove(os.path.join(lvgl_cwd, 'CMakeLists.txt'))
# os.remove(os.path.join(lvgl_cwd, 'component.mk'))
# os.remove(os.path.join(lvgl_cwd, 'idf_component.yml'))
# os.remove(os.path.join(lvgl_cwd, 'Kconfig'))
# os.remove(os.path.join(lvgl_cwd, 'library.json'))
# os.remove(os.path.join(lvgl_cwd, 'library.properties'))
# os.remove(os.path.join(lvgl_cwd, 'lv_conf_template.h'))
# os.remove(os.path.join(lvgl_cwd, 'lvgl.mk'))
# except:
# pass
#
Return('group')
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/rt-thread/SConscript | Python | apache-2.0 | 2,092 |
/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: MIT
*
* Change Logs:
* Date Author Notes
* 2021-10-15 Meco Man The first version
*/
#ifndef LV_RT_THREAD_CONF_H
#define LV_RT_THREAD_CONF_H
#ifdef __RTTHREAD__
#define LV_RTTHREAD_INCLUDE <rtthread.h>
#include LV_RTTHREAD_INCLUDE
/*=========================
MEMORY SETTINGS
*=========================*/
#ifdef RT_USING_HEAP
# define LV_MEM_CUSTOM 1
# define LV_MEM_CUSTOM_INCLUDE LV_RTTHREAD_INCLUDE
# define LV_MEM_CUSTOM_ALLOC rt_malloc
# define LV_MEM_CUSTOM_FREE rt_free
# define LV_MEM_CUSTOM_REALLOC rt_realloc
#endif
/*====================
HAL SETTINGS
*====================*/
#define LV_TICK_CUSTOM 1
#define LV_TICK_CUSTOM_INCLUDE LV_RTTHREAD_INCLUDE
#define LV_TICK_CUSTOM_SYS_TIME_EXPR (rt_tick_get_millisecond()) /*Expression evaluating to current system time in ms*/
/*=======================
* FEATURE CONFIGURATION
*=======================*/
/*-------------
* Logging
*-----------*/
#ifdef PKG_LVGL_ENABLE_LOG
# define LV_USE_LOG 1
# define LV_LOG_PRINTF 0
#else
# define LV_USE_LOG 0
#endif
/*-------------
* Asserts
*-----------*/
#define LV_ASSERT_HANDLER_INCLUDE LV_RTTHREAD_INCLUDE
#define LV_ASSERT_HANDLER RT_ASSERT(0);
/*-------------
* Others
*-----------*/
#define LV_SPRINTF_CUSTOM 1
#define LV_SPRINTF_INCLUDE LV_RTTHREAD_INCLUDE
#define lv_snprintf rt_snprintf
#define lv_vsnprintf rt_vsnprintf
#define LV_SPRINTF_USE_FLOAT 0
/*=====================
* COMPILER SETTINGS
*====================*/
#ifdef RT_USING_BIG_ENDIAN
# define LV_BIG_ENDIAN_SYSTEM 1
#else
# define LV_BIG_ENDIAN_SYSTEM 0
#endif
#define LV_ATTRIBUTE_MEM_ALIGN ALIGN(4)
/*--END OF LV_RT_THREAD_CONF_H--*/
#endif /*__RTTHREAD__*/
#endif /*LV_CONF_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/rt-thread/lv_rt_thread_conf.h | C | apache-2.0 | 1,822 |
/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: MIT
*
* Change Logs:
* Date Author Notes
* 2021-10-18 Meco Man The first version
*/
#ifdef __RTTHREAD__
#include <rtthread.h>
#include <lvgl.h>
#define DBG_TAG "LVGL"
#define DBG_LVL DBG_INFO
#include <rtdbg.h>
#ifndef PKG_USING_LVGL_DISP_DEVICE
# include <lv_port_disp.h>
#endif
#ifndef PKG_USING_LVGL_INDEV_DEVICE
# include <lv_port_indev.h>
#endif
#if LV_USE_LOG && LV_LOG_PRINTF
static void lv_rt_log(const char *buf)
{
LOG_I(buf);
}
#endif
static int lv_port_init(void)
{
#if LV_USE_LOG && LV_LOG_PRINTF
lv_log_register_print_cb(lv_rt_log);
#endif
lv_init();
#ifndef PKG_USING_LVGL_DISP_DEVICE
lv_port_disp_init();
#endif
#ifndef PKG_USING_LVGL_INDEV_DEVICE
lv_port_indev_init();
#endif
return 0;
}
INIT_COMPONENT_EXPORT(lv_port_init);
#endif /*__RTTHREAD__*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/rt-thread/lv_rt_thread_port.c | C | apache-2.0 | 924 |
#!/bin/bash
set -e
export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
CURRENT_REF="$(git rev-parse HEAD)"
rm -rf emscripten_builder
git clone https://github.com/lvgl/lv_sim_emscripten.git emscripten_builder
scripts/genexamplelist.sh > emscripten_builder/examplelist.c
cd emscripten_builder
git submodule update --init -- lvgl
cd lvgl
git checkout $CURRENT_REF
cd ..
git submodule update --init -- lv_drivers
mkdir cmbuild
cd cmbuild
emcmake cmake .. -DLVGL_CHOSEN_DEMO=lv_example_noop -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
emmake make -j$(nproc)
rm -rf CMakeFiles
cd ../..
cp -a emscripten_builder/cmbuild docs/_static/built_lv_examples
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/scripts/build_html_examples.sh | Shell | apache-2.0 | 686 |
#!/usr/bin/env python3.6
import argparse
from argparse import RawTextHelpFormatter
import os
import sys
parser = argparse.ArgumentParser(description="""Create fonts for LittelvGL including the built-in symbols. lv_font_conv needs to be installed. See https://github.com/littlevgl/lv_font_conv
Example: python built_in_font_gen.py --size 16 -o lv_font_roboto_16.c --bpp 4 -r 0x20-0x7F""", formatter_class=RawTextHelpFormatter)
parser.add_argument('-s', '--size',
type=int,
metavar = 'px',
nargs='?',
help='Size of the font in px')
parser.add_argument('--bpp',
type=int,
metavar = '1,2,4',
nargs='?',
help='Bit per pixel')
parser.add_argument('-r', '--range',
nargs='+',
metavar = 'start-end',
default=['0x20-0x7F,0xB0,0x2022'],
help='Ranges and/or characters to include. Default is 0x20-7F (ASCII). E.g. -r 0x20-0x7F, 0x200, 324')
parser.add_argument('--symbols',
nargs='+',
metavar = 'sym',
default=[''],
help=u'Symbols to include. E.g. -s ÁÉŐ'.encode('utf-8'))
parser.add_argument('--font',
metavar = 'file',
nargs='?',
default='Montserrat-Medium.ttf',
help='A TTF or WOFF file')
parser.add_argument('-o', '--output',
nargs='?',
metavar='file',
help='Output file name. E.g. my_font_20.c')
parser.add_argument('--compressed', action='store_true',
help='Compress the bitmaps')
parser.add_argument('--subpx', action='store_true',
help='3 times wider letters for sub pixel rendering')
args = parser.parse_args()
if args.compressed == False:
compr = "--no-compress --no-prefilter"
else:
compr = ""
if len(args.symbols[0]) != 0:
args.symbols[0] = "--symbols " + args.symbols[0]
subpx = ""
if args.subpx: subpx = "--lcd"
#Built in symbols
syms = "61441,61448,61451,61452,61452,61453,61457,61459,61461,61465,61468,61473,61478,61479,61480,61502,61507,61512,61515,61516,61517,61521,61522,61523,61524,61543,61544,61550,61552,61553,61556,61559,61560,61561,61563,61587,61589,61636,61637,61639,61641,61664,61671,61674,61683,61724,61732,61787,61931,62016,62017,62018,62019,62020,62087,62099,62212,62189,62810,63426,63650"
#Run the command (Add degree and bbullet symbol)
cmd = "lv_font_conv {} {} --bpp {} --size {} --font {} -r {} {} --font FontAwesome5-Solid+Brands+Regular.woff -r {} --format bin -o {} --force-fast-kern-format".format(subpx, compr, args.bpp, args.size, args.font, args.range[0], args.symbols[0], syms, args.output)
os.system(cmd)
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/scripts/built_in_font/built_in_font_gen.py | Python | apache-2.0 | 2,509 |
#!/usr/bin/env python3.6
import os
print("Generating 8 px")
os.system("./built_in_font_gen.py --size 8 -o lv_font_montserrat_8.c --bpp 4")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_montserrat_8.c')
print("\nGenerating 10 px")
os.system("./built_in_font_gen.py --size 10 -o lv_font_montserrat_10.c --bpp 4")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_montserrat_10.c')
print("\nGenerating 12 px")
os.system("./built_in_font_gen.py --size 12 -o lv_font_montserrat_12.c --bpp 4")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_montserrat_12.c')
print("\nGenerating 14 px")
os.system("./built_in_font_gen.py --size 14 -o lv_font_montserrat_14.c --bpp 4")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_montserrat_14.c')
print("\nGenerating 16 px")
os.system("./built_in_font_gen.py --size 16 -o lv_font_montserrat_16.c --bpp 4")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_montserrat_16.c')
print("\nGenerating 18 px")
os.system("./built_in_font_gen.py --size 18 -o lv_font_montserrat_18.c --bpp 4")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_montserrat_18.c')
print("\nGenerating 20 px")
os.system("./built_in_font_gen.py --size 20 -o lv_font_montserrat_20.c --bpp 4")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_montserrat_20.c')
print("\nGenerating 22 px")
os.system("./built_in_font_gen.py --size 22 -o lv_font_montserrat_22.c --bpp 4")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_montserrat_22.c')
print("\nGenerating 24 px")
os.system("./built_in_font_gen.py --size 24 -o lv_font_montserrat_24.c --bpp 4")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_montserrat_24.c')
print("\nGenerating 26 px")
os.system("./built_in_font_gen.py --size 26 -o lv_font_montserrat_26.c --bpp 4")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_montserrat_26.c')
print("\nGenerating 28 px")
os.system("./built_in_font_gen.py --size 28 -o lv_font_montserrat_28.c --bpp 4")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_montserrat_28.c')
print("\nGenerating 30 px")
os.system("./built_in_font_gen.py --size 30 -o lv_font_montserrat_30.c --bpp 4")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_montserrat_30.c')
print("\nGenerating 32 px")
os.system("./built_in_font_gen.py --size 32 -o lv_font_montserrat_32.c --bpp 4")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_montserrat_32.c')
print("\nGenerating 34 px")
os.system("./built_in_font_gen.py --size 34 -o lv_font_montserrat_34.c --bpp 4")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_montserrat_34.c')
print("\nGenerating 36 px")
os.system("./built_in_font_gen.py --size 36 -o lv_font_montserrat_36.c --bpp 4")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_montserrat_36.c')
print("\nGenerating 38 px")
os.system("./built_in_font_gen.py --size 38 -o lv_font_montserrat_38.c --bpp 4")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_montserrat_38.c')
print("\nGenerating 40 px")
os.system("./built_in_font_gen.py --size 40 -o lv_font_montserrat_40.c --bpp 4")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_montserrat_40.c')
print("\nGenerating 42 px")
os.system("./built_in_font_gen.py --size 42 -o lv_font_montserrat_42.c --bpp 4")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_montserrat_42.c')
print("\nGenerating 44 px")
os.system("./built_in_font_gen.py --size 44 -o lv_font_montserrat_44.c --bpp 4")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_montserrat_44.c')
print("\nGenerating 46 px")
os.system("./built_in_font_gen.py --size 46 -o lv_font_montserrat_46.c --bpp 4")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_montserrat_46.c')
print("\nGenerating 48 px")
os.system("./built_in_font_gen.py --size 48 -o lv_font_montserrat_48.c --bpp 4")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_montserrat_48.c')
print("\nGenerating 12 px subpx")
os.system("./built_in_font_gen.py --size 12 -o lv_font_montserrat_12_subpx.c --bpp 4 --subpx")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_montserrat_12_subpx.c')
print("\nGenerating 28 px compressed")
os.system("./built_in_font_gen.py --size 28 -o lv_font_montserrat_28_compressed.c --bpp 4 --compressed")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_montserrat_28_compressed.c')
print("\nGenerating 16 px CJK")
os.system(u"./built_in_font_gen.py --size 16 -o lv_font_simsun_16_cjk.c --bpp 4 --font SimSun.woff -r 0x20-0x7f --symbols （），盗提陽帯鼻画輕ッ冊ェル写父ぁフ結想正四O夫源庭場天續鳥れ講猿苦階給了製守8祝己妳薄泣塩帰ぺ吃変輪那着仍嗯爭熱創味保字宿捨準查達肯ァ薬得査障該降察ね網加昼料等図邪秋コ態品屬久原殊候路願楽確針上被怕悲風份重歡っ附ぷ既4黨價娘朝凍僅際洋止右航よ专角應酸師個比則響健昇豐筆歷適修據細忙跟管長令家ザ期般花越ミ域泳通些油乏ラ。營ス返調農叫樹刊愛間包知把ヤ貧橋拡普聞前ジ建当繰ネ送習渇用補ィ覺體法遊宙ョ酔余利壊語くつ払皆時辺追奇そ們只胸械勝住全沈力光ん深溝二類北面社值試9和五勵ゃ貿幾逐打課ゲて領3鼓辦発評１渉詳暇込计駄供嘛郵頃腦反構絵お容規借身妻国慮剛急乗静必議置克土オ乎荷更肉還混古渡授合主離條値決季晴東大尚央州が嗎験流先医亦林田星晩拿60旅婦量為痛テ孫う環友況玩務其ぼち揺坐一肩腰犯タょ希即果ぶ物練待み高九找やヶ都グ去」サ、气仮雑酒許終企笑録形リ銀切ギ快問滿役単黄集森毎實研喜蘇司鉛洲川条媽ノ才兩話言雖媒出客づ卻現異故り誌逮同訊已視本題ぞを横開音第席費持眾怎選元退限ー賽処喝就残無いガ多ケ沒義遠歌隣錢某雪析嬉採自透き側員予ゼ白婚电へ顯呀始均畫似懸格車騒度わ親店週維億締慣免帳電甚來園浴ゅ愈京と杯各海怒ぜ排敗挙老買7極模実紀ヒ携隻告シ並屋這孩讓質ワブ富賃争康由辞マ火於短樣削弟材注節另室ダ招擁ぃ若套底波行勤關著泊背疲狭作念推ぐ民貸祖介說ビ代温契你我レ入描變再札ソ派頭智遅私聽舉灣山伸放直安ト誕煙付符幅ふ絡她届耳飲忘参革團仕様載ど歩獲嫌息の汚交興魚指資雙與館初学年幸史位柱族走括び考青也共腕Lで販擔理病イ今逃當寺猫邊菓係ム秘示解池影ド文例斷曾事茶寫明科桃藝売便え導禁財飛替而亡到し具空寝辛業ウ府セ國何基菜厳市努張缺雲根外だ断万砂ゴ超使台实ぽ礼最慧算軟界段律像夕丈窓助刻月夏政呼ぴざ擇趣除動従涼方勉名線対存請子氏將5少否諸論美感或西者定食御表は參歳緑命進易性錯房も捕皿判中觀戦ニ緩町ピ番ず金千ろ?不た象治関ャ每看徒卒統じ手範訪押座步号ベ旁以母すほ密減成往歲件緒読歯效院种七謂凝濃嵌震喉繼クュ拭死円2積水欲如ポにさ寒道區精啦姐ア聯能足及停思壓２春且メ裏株官答概黒過氷柿戻厚ぱ党祭織引計け委暗複誘港バ失下村較続神ぇ尤強秀膝兒来績十書済化服破新廠1紹您情半式產系好教暑早め樂地休協良な哪常要揮周かエ麗境働避護ンツ香夜太見設非改広聲他検求危清彼經未在起葉控靴所差內造寄南望尺換向展備眠點完約ぎ裡分説申童優伝島机須塊日立拉,鉄軽單気信很転識支布数紙此迎受心輸坊モ處「訳三曇兄野顔戰增ナ伊列又髪両有取左毛至困吧昔赤狀相夠整別士経頼然簡ホ会發隨営需脱ヨば接永居冬迫圍甘醫誰部充消連弱宇會咲覚姉麼的増首统帶糖朋術商担移景功育庫曲總劃牛程駅犬報ロ學責因パ嚴八世後平負公げ曜陸專午之閉ぬ談ご災昨冷職悪謝對它近射敢意運船臉局難什産頗!球真記ま但蔵究制機案湖臺ひ害券男留内木驗雨施種特復句末濟キ色訴依せ百型る石牠討呢时任執飯歐宅組傳配小活ゆべ暖ズ漸站素らボ束価チ浅回女片独妹英目從認生違策僕楚ペ米こ掛む爸六状落漢プ投カ校做啊洗声探あ割体項履触々訓技ハ低工映是標速善点人デ口次可".encode('utf-8'))
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_simsun_16_cjk.c')
print("\nGenerating 16 px Hebrew, Persian")
os.system("./built_in_font_gen.py --size 16 -o lv_font_dejavu_16_persian_hebrew.c --bpp 4 --font DejaVuSans.ttf -r 0x20-0x7f,0x5d0-0x5ea,0x600-0x6FF,0xFB50-0xFDFF,0xFE70-0xFEFF")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_dejavu_16_persian_hebrew.c')
print("\nGenerating 8 px unscii")
os.system("lv_font_conv --no-compress --no-prefilter --bpp 1 --size 8 --font unscii-8.ttf -r 0x20-0x7F --format lvgl -o lv_font_unscii_8.c --force-fast-kern-format")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_unscii_8.c')
print("\nGenerating 16 px unscii")
os.system("lv_font_conv --no-compress --no-prefilter --bpp 1 --size 16 --font unscii-8.ttf -r 0x20-0x7F --format lvgl -o lv_font_unscii_16.c --force-fast-kern-format")
os.system('sed -i \'s|#include "lvgl/lvgl.h"|#include "../../lvgl.h"|\' lv_font_unscii_16.c')
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/scripts/built_in_font/generate_all.py | Python | apache-2.0 | 9,871 |
{{#each releases}}
## [{{title}}]({{href}}) {{niceDate}}
### Breaking Changes
{{#commit-list merges heading='' message='BREAKING CHANGE'}}
- :warning: {{message}} [`{{id}}`]({{href}})
{{/commit-list}}
{{#commit-list commits heading='' message='BREAKING CHANGE'}}
- :warning: {{subject}} [`{{shorthash}}`]({{href}})
{{/commit-list}}
{{#commit-list fixes heading='' message='BREAKING CHANGE'}}
- {{commit.subject}} [`{{commit.shorthash}}`]({{commit.href}})
{{/commit-list}}
### Architectural
{{#commit-list merges heading='' message='^arch' exclude='BREAKING CHANGE'}}
- {{message}} [`{{id}}`]({{href}})
{{/commit-list}}
{{#commit-list commits heading='' message='^arch' exclude='BREAKING CHANGE'}}
- {{subject}} [`{{shorthash}}`]({{href}})
{{/commit-list}}
{{#commit-list fixes heading='' message='^arch' exclude='BREAKING CHANGE'}}
- {{commit.subject}} [`{{commit.shorthash}}`]({{commit.href}})
{{/commit-list}}
### New Features
{{#commit-list merges heading='' message='^feat' exclude='BREAKING CHANGE'}}
- {{message}} [`{{id}}`]({{href}})
{{/commit-list}}
{{#commit-list commits heading='' message='^feat' exclude='BREAKING CHANGE'}}
- {{subject}} [`{{shorthash}}`]({{href}})
{{/commit-list}}
{{#commit-list fixes heading='' message='^feat' exclude='BREAKING CHANGE'}}
- {{commit.subject}} [`{{commit.shorthash}}`]({{commit.href}})
{{/commit-list}}
### Performance
{{#commit-list merges heading='' message='^perf' exclude='BREAKING CHANGE'}}
- {{message}} [`{{id}}`]({{href}})
{{/commit-list}}
{{#commit-list commits heading='' message='^perf' exclude='BREAKING CHANGE'}}
- {{subject}} [`{{shorthash}}`]({{href}})
{{/commit-list}}
{{#commit-list fixes heading='' message='^perf' exclude='BREAKING CHANGE'}}
- {{commit.subject}} [`{{commit.shorthash}}`]({{commit.href}})
{{/commit-list}}
### Fixes
{{#commit-list merges heading='' message='^fix' message='^fix' exclude='(^fix conflict|^fix warning|BREAKING CHANGE)'}}
- {{message}} [`{{id}}`]({{href}})
{{/commit-list}}
{{#commit-list commits heading='' message='^fix' exclude='(^fix conflict|^fix warning|BREAKING CHANGE)'}}
- {{subject}} [`{{shorthash}}`]({{href}})
{{/commit-list}}
{{#commit-list fixes heading='' message='^fix' exclude='(^fix conflict|^fix warning|BREAKING CHANGE)'}}
- {{commit.subject}} [`{{commit.shorthash}}`]({{commit.href}})
{{/commit-list}}
### Examples
{{#commit-list merges heading='' message='^example'}}
- {{message}} [`{{id}}`]({{href}})
{{/commit-list}}
{{#commit-list commits heading='' message='^example'}}
- {{subject}} [`{{shorthash}}`]({{href}})
{{/commit-list}}
{{#commit-list fixes heading='' message='^example'}}
- {{commit.subject}} [`{{commit.shorthash}}`]({{commit.href}})
{{/commit-list}}
### Docs
{{#commit-list merges heading='' message='^docs'}}
- {{message}} [`{{id}}`]({{href}})
{{/commit-list}}
{{#commit-list commits heading='' message='^docs'}}
- {{subject}} [`{{shorthash}}`]({{href}})
{{/commit-list}}
{{#commit-list fixes heading='' message='^docs'}}
- {{commit.subject}} [`{{commit.shorthash}}`]({{commit.href}})
{{/commit-list}}
### CI and tests
{{#commit-list merges heading='' message='(^ci|^test)'}}
- {{message}} [`{{id}}`]({{href}})
{{/commit-list}}
{{#commit-list commits heading='' message='(^ci|^test)'}}
- {{subject}} [`{{shorthash}}`]({{href}})
{{/commit-list}}
{{#commit-list fixes heading='' message='(^ci|^test)'}}
- {{commit.subject}} [`{{commit.shorthash}}`]({{commit.href}})
{{/commit-list}}
### Others
{{#commit-list merges heading='' exclude='(^fix|^feat|^perf|^docs|^example|^ci|^test)'}}
- {{message}} [`{{id}}`]({{href}})
{{/commit-list}}
{{#commit-list commits heading='' exclude='(^fix|^feat|^perf|^docs|^example|^ci|^test)'}}
- {{subject}} [`{{shorthash}}`]({{href}})
{{/commit-list}}
{{#commit-list fixes heading='' exclude='(^fix|^feat|^perf|^docs|^example|^ci|^test)'}}
- {{commit.subject}} [`{{commit.shorthash}}`]({{commit.href}})
{{/commit-list}}
{{/each}}
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/scripts/changelog-template.hbs | Handlebars | apache-2.0 | 4,169 |
# Generate CHANGELOG_LAST.md from changes since the last version tag. (vx.y.z-dev tags are ignored)
# CHANGELOG_LAST.md can be edited manually if required and manually added to docs/CHANGELOG.md
#
# Requirements:
# npm install -g auto-changelog
#
# Usage:
# changelog-gen <next-version>
#
# Example: if the latest verision is v5.6.7 the followings can be used for bugfix, minor or major versions:
# changelog-gen v5.6.8
# changelog-gen v5.7.0
# changelog-gen v6.0.0
auto-changelog -t changelog-template.hbs -l false --latest-version $1 --unreleased-only --tag-pattern ^v[0-9]+.[0-9]+.[0-9]+$ -o CHANGELOG_LAST.md
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/scripts/changelog_gen.sh | Shell | apache-2.0 | 661 |
astyle --options=code-format.cfg "../src/*.c,*.h"
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/scripts/code-format.sh | Shell | apache-2.0 | 50 |
cppcheck -j8 --template="{severity}\t{file}:{line}\t{id}: {message}" --enable=all ../src/ --output-file=cppcheck_res.txt --suppress=unusedFunction --suppress=preprocessorErrorDirective --force
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/scripts/cppcheck_run.sh | Shell | apache-2.0 | 193 |
#!/usr/bin/env python3
import sys
with open(sys.argv[1], 'r') as file:
s = file.read()
b = bytearray()
b.extend(map(ord, s))
for a in b: print(hex(a), end =", ")
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/scripts/filetohex.py | Python | apache-2.0 | 170 |
#!/bin/bash
# Credit: https://stackoverflow.com/a/4774063
SCRIPTPATH="$( cd -- "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P )"
TMPENVFILE=$(mktemp /tmp/lvgl.script.XXXXXX)
cat $SCRIPTPATH/../lvgl.h | grep "#define LVGL_VERSION_" | sed 's/#define //g' | sed -r 's/\s+/=/' > $TMPENVFILE
. $TMPENVFILE
rm $TMPENVFILE
echo $LVGL_VERSION_MAJOR.$LVGL_VERSION_MINOR
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/scripts/find_version.sh | Shell | apache-2.0 | 357 |
# https://github.com/facebook/infer
#
# Install:
# VERSION=0.17.0; \
# curl -sSL "https://github.com/facebook/infer/releases/download/v$VERSION/infer-linux64-v$VERSION.tar.xz" \
# | sudo tar -C /opt -xJ && \
# sudoln -s "/opt/infer-linux64-v$VERSION/bin/infer" /usr/local/bin/infer
infer run -- make -j8
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/scripts/infer_run.sh | Shell | apache-2.0 | 305 |
#!/usr/bin/sh
# Install Linux package prerequisites needed for LVGL development
# and testing. Some less-common development packages are not included
# here, such as MicroPython and PC simulator packages.
#
# Note: This script is run by the CI workflows.
sudo apt install gcc python3 libpng-dev ruby-full gcovr cmake
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/scripts/install-prerequisites.sh | Shell | apache-2.0 | 318 |
##################################################################
# sjpeg converter script version 1.0
# Dependencies: (PYTHON-3)
##################################################################
SJPG_FILE_FORMAT_VERSION = "V1.00" #
JPEG_SPLIT_HEIGHT = 16
##################################################################
import math, os, sys, time
from PIL import Image
OUTPUT_FILE_NAME = ""
INPUT_FILE = ""
if len(sys.argv) == 2:
INPUT_FILE = sys.argv[1]
OUTPUT_FILE_NAME = INPUT_FILE.split("/")[-1].split("\\")[-1].split(".")[0]
else:
print("usage:\n\t python " + sys.argv[0] + " input_file.jpg")
sys.exit(0)
try:
im = Image.open(INPUT_FILE)
except:
print("\nFile not found!")
sys.exit(0)
print("\nConversion started...\n")
start_time = time.time()
width, height = im.size
print("Input:")
print("\t" + INPUT_FILE)
print("\tRES = " + str(width) + " x " + str(height) + '\n')
lenbuf = []
block_size = JPEG_SPLIT_HEIGHT;
spilts = math.ceil(height/block_size)
c_code = '''//LVGL SJPG C ARRAY\n#include "lvgl/lvgl.h"\n\nconst uint8_t ''' + OUTPUT_FILE_NAME + '''_map[] = {\n'''
sjpeg_data = bytearray()
sjpeg = bytearray()
row_remaining = height;
for i in range(spilts):
if row_remaining < block_size:
crop = im.crop((0, i*block_size, width, row_remaining + i*block_size))
else:
crop = im.crop((0, i*block_size, width, block_size + i*block_size))
row_remaining = row_remaining - block_size;
crop.save(str(i)+".jpg", quality=90)
for i in range(spilts):
f = open(str(i)+".jpg", "rb")
a = f.read()
f.close()
sjpeg_data = sjpeg_data + a
lenbuf.append(len(a))
header = bytearray()
#4 BYTES
header = header + bytearray("_SJPG__".encode("UTF-8"));
#6 BYTES VERSION
header = header + bytearray(("\x00" + SJPG_FILE_FORMAT_VERSION + "\x00").encode("UTF-8"));
#WIDTH 2 BYTES
header = header + width.to_bytes(2, byteorder='little');
#HEIGHT 2 BYTES
header = header + height.to_bytes(2, byteorder='little');
#NUMBER OF ITEMS 2 BYTES
header = header + spilts.to_bytes(2, byteorder='little');
#NUMBER OF ITEMS 2 BYTES
header = header + int(JPEG_SPLIT_HEIGHT).to_bytes(2, byteorder='little');
for item_len in lenbuf:
# WIDTH 2 BYTES
header = header + item_len.to_bytes(2, byteorder='little');
data = bytearray()
sjpeg = header + sjpeg_data;
if 1:
for i in range(len(lenbuf)):
os.remove(str(i) + ".jpg")
f = open(OUTPUT_FILE_NAME+".sjpg","wb");
f.write(sjpeg)
f.close()
new_line_threshold = 0
for i in range(len(sjpeg)):
c_code = c_code + "\t" + str(hex(sjpeg[i])) + ","
new_line_threshold = new_line_threshold + 1
if (new_line_threshold >= 16):
c_code = c_code + "\n"
new_line_threshold = 0
c_code = c_code + "\n};\n\nlv_img_dsc_t "
c_code = c_code + OUTPUT_FILE_NAME + " = {\n"
c_code = c_code + "\t.header.always_zero = 0,\n"
c_code = c_code + "\t.header.w = " + str(width) + ",\n"
c_code = c_code + "\t.header.h = " + str(height) + ",\n"
c_code = c_code + "\t.data_size = " + str(len(sjpeg)) + ",\n"
c_code = c_code + "\t.header.cf = LV_IMG_CF_RAW,\n"
c_code = c_code + "\t.data = " + OUTPUT_FILE_NAME+"_map" + ",\n};"
f = open(OUTPUT_FILE_NAME + '.c', 'w')
f.write(c_code)
f.close()
time_taken = (time.time() - start_time)
print("Output:")
print("\tTime taken = " + str(round(time_taken,2)) + " sec")
print("\tbin size = " + str(round(len(sjpeg)/1024, 1)) + " KB" )
print("\t" + OUTPUT_FILE_NAME + ".sjpg\t(bin file)" + "\n\t" + OUTPUT_FILE_NAME + ".c\t\t(c array)")
print("\nAll good!")
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/scripts/jpg_to_sjpg.py | Python | apache-2.0 | 3,557 |
#!/usr/bin/env python
import sys
import os.path
from os import path
import os, fnmatch
import re
import subprocess
import com
def cmd(c, ask_on_err = True):
print("\n" + c)
r = os.system(c)
if r:
print("### Error: " + str(r))
if ask_on_err:
input("Press Enter to continue execution...")
def define_set(fn, name, value):
print("In " + fn + " set " + name + " to " + value)
new_content = ""
s = r'^ *# *define +' + str(name).rstrip() + ' +'
f = open(fn, "r")
for i in f.read().splitlines():
r = re.search(s, i)
if r:
d = i.split("define")
i = d[0] + "define " + name + " " + value
new_content += i + '\n'
f.close()
f = open(fn, "w")
f.write(new_content)
f.close()
def ver_format(ver):
s = "v" + str(ver[0]) + "." + str(ver[1]) + "." + str(ver[2])
if(ver[3] != ""): s = s + "-" + ver[3]
return s
def get_lvgl_version():
print("Get lvgl's version ")
ver = [0, 0, 0, ""]
f = open("./lvgl.h", "r")
lastNum = re.compile(r'(?:[^\d]*(\d+)[^\d]*)+')
for i in f.read().splitlines():
r = re.search(r'^#define LVGL_VERSION_MAJOR ', i)
if r:
m = lastNum.search(i)
if m: ver[0] = m.group(1)
r = re.search(r'^#define LVGL_VERSION_MINOR ', i)
if r:
m = lastNum.search(i)
if m: ver[1] = m.group(1)
r = re.search(r'^#define LVGL_VERSION_PATCH ', i)
if r:
m = lastNum.search(i)
if m: ver[2] = m.group(1)
f.close()
print("Version found: " + ver_format(ver))
return ver
def push(c):
cmd("git push " + c)
def update_version(ver):
ver_str = ver_format(ver)
ver_num = ver[0] + "." + ver[1] + "." + ver[2]
templ = fnmatch.filter(os.listdir('.'), '*_templ*.h')
if len(templ) > 0 and templ[0]:
print("Updating version in " + templ[0])
cmd("sed -i -r 's/v[0-9]+\.[0-9]+\.[0-9]+.*/"+ "v" + ver_num + "/' " + templ[0])
if os.path.exists("library.json"):
print("Updating version in library.json")
cmd("sed -i -r 's/[0-9]+\.[0-9]+\.[0-9]+/"+ ver_num +"/' library.json")
if path.exists("library.properties"):
print("Updating version in library.properties")
cmd("sed -i -r 's/version=[0-9]+\.[0-9]+\.[0-9]+/"+ "version=" + ver_num + "/' library.properties")
if path.exists("conf.py"):
cmd("sed -i -r 's/v[0-9]+\.[0-9]+\.[0-9]+.*/" + ver_str + "/' conf.py")
if path.exists("Kconfig"):
cmd("sed -i -r 's/v[0-9]+\.[0-9]+\.[0-9]+.*/" + ver_str + "/' Kconfig")
if path.exists("lvgl.h"):
define_set("./lvgl.h", "LVGL_VERSION_MAJOR", str(ver[0]))
define_set("./lvgl.h", "LVGL_VERSION_MINOR", str(ver[1]))
define_set("./lvgl.h", "LVGL_VERSION_PATCH", str(ver[2]))
define_set("./lvgl.h", "LVGL_VERSION_INFO", "\"" + ver[3] + "\"")
cmd("git commit -am 'Update versions to " + ver_str + "'")
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/scripts/release/com.py | Python | apache-2.0 | 2,956 |
#!/usr/bin/env python3
# Applies a commit or commits on baranch or branches
# USAGE:
# patch.py -c <commit-list> -b <branch-list> [-p] [-t]
# - <commit-list>: list of commit SHAs to apply.
# - <branch-list>: branches where the commit should be applied. * can be used as wildchar
# - p: push the changes to <brach-list>
# - t: increment version number and create a tag
import os, subprocess, com, re
push = False
def clone(repo):
com.cmd("git clone --recurse-submodules https://github.com/lvgl/" + repo)
os.chdir("./" + repo)
com.cmd("git checkout master")
com.cmd("git remote update origin --prune")
com.cmd("git pull origin --tags")
os.chdir("..")
# Get the list of realted minor version branches
#clone("lvgl")
os.chdir("lvgl")
cmd = "git branch --remotes | grep origin/release/v8"
branches, error = subprocess.Popen(cmd, shell=True, executable="/bin/bash", stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()
branches = str(branches)
branches = branches.replace("b'", "")
branches = branches.replace("'", "")
branches = branches.replace("origin/", "")
branches = branches.replace(" ", " ")
branches = branches.replace("\\n", "")
branches = branches.split(" ")
branches = list(filter(len, branches))
commits = []
with open('../commits.txt') as f:
for line in f:
commits.insert(0, line)
print(commits)
for br in branches:
com.cmd("git checkout " + br)
print("Applying commits")
for c in commits:
h = c.split(" ")
com.cmd("git cherry-pick " + h[0])
ver = com.get_lvgl_version(br)
ver_new = ver.copy()
ver_new[2] = str(int(ver_new[2]) + 1)
print("Updating branch '" + br + "' from '" + com.ver_format(ver) + "' to '" + com.ver_format(ver_new) + "'")
com.update_version(ver_new)
com.cmd("git tag -a " + com.ver_format(ver_new) + "-m \"Release " + com.ver_format(ver_new) + "\"")
if push:
com.cmd("git push origin " + br + "--tags")
com.cmd("git checkout master")
ver = com.get_lvgl_version("master")
ver = com.get_lvgl_version(br)
ver_new[2] = str(int(ver_new[2]) + 1)
t = com.ver_format(ver_new) + "-dev"
com.cmd("git tag -a " + t + " -m \"Start " + t + "\"")
if push:
com.cmd("git push origin master --tags")
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/scripts/release/patch.py | Python | apache-2.0 | 2,226 |
#!/usr/bin/env python3
# Create a new release from master. Execute the followings:
# - On lvgl, lv_demos, and lv_drivers:
# - Detect the current version of master. E.g. 8.1-dev
# - Create a new branch from the master for the release. E.g. release/v8.1
# - Remove the "-dev" postfix from the version numbers
# - Create a tag for the new version. E.g. v8.1
# - Push the new branch and tag
# - Get the relevant changes from docs/CHANGELOG.md and create a blog post from it
# - Increment the version number in master. E.g.g 8.1-dev to 8.2-dev
# - Add a new section to the CHANGELOG with the new version
# - Update the simulator and lv_port projects
#
# USAGE:
# release.py <type>
# - <type>: -minor or -major
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/scripts/release/release.py | Python | apache-2.0 | 724 |
#!/usr/bin/env python3
import sys, os, re
props = [
{'section': 'Size and position', 'dsc':'Properties related to size, position, alignment and layout of the objects.' },
{'name': 'WIDTH',
'style_type': 'num', 'var_type': 'lv_coord_t' , 'default':'widget dependent', 'inherited': 0, 'layout': 1, 'ext_draw': 0,
'dsc': "Sets the width of object. Pixel, percentage and `LV_SIZE_CONTENT` values can be used. Percentage values are relative to the width of the parent's content area."},
{'name': 'MIN_WIDTH',
'style_type': 'num', 'var_type': 'lv_coord_t' , 'default':0, 'inherited': 0, 'layout': 1, 'ext_draw': 0,
'dsc': "Sets a minimal width. Pixel and percentage values can be used. Percentage values are relative to the width of the parent's content area."},
{'name': 'MAX_WIDTH',
'style_type': 'num', 'var_type': 'lv_coord_t' , 'default':'LV_COORD_MAX', 'inherited': 0, 'layout': 1, 'ext_draw': 0,
'dsc': "Sets a maximal width. Pixel and percentage values can be used. Percentage values are relative to the width of the parent's content area."},
{'name': 'HEIGHT',
'style_type': 'num', 'var_type': 'lv_coord_t' , 'default':'widget dependent', 'inherited': 0, 'layout': 1, 'ext_draw': 0,
'dsc': "Sets the height of object. Pixel, percentage and `LV_SIZE_CONTENT` can be used. Percentage values are relative to the height of the parent's content area."},
{'name': 'MIN_HEIGHT',
'style_type': 'num', 'var_type': 'lv_coord_t' , 'default':0, 'inherited': 0, 'layout': 1, 'ext_draw': 0,
'dsc': "Sets a minimal height. Pixel and percentage values can be used. Percentage values are relative to the width of the parent's content area."},
{'name': 'MAX_HEIGHT',
'style_type': 'num', 'var_type': 'lv_coord_t' , 'default':'LV_COORD_MAX', 'inherited': 0, 'layout': 1, 'ext_draw': 0,
'dsc': "Sets a maximal height. Pixel and percentage values can be used. Percentage values are relative to the height of the parent's content area."},
{'name': 'X',
'style_type': 'num', 'var_type': 'lv_coord_t' , 'default':0, 'inherited': 0, 'layout': 1, 'ext_draw': 0,
'dsc': "Set the X coordinate of the object considering the set `align`. Pixel and percentage values can be used. Percentage values are relative to the width of the parent's content area."},
{'name': 'Y',
'style_type': 'num', 'var_type': 'lv_coord_t', 'default':0, 'inherited': 0, 'layout': 1, 'ext_draw': 0,
'dsc': "Set the Y coordinate of the object considering the set `align`. Pixel and percentage values can be used. Percentage values are relative to the height of the parent's content area."},
{'name': 'ALIGN',
'style_type': 'num', 'var_type': 'lv_align_t', 'default':'`LV_ALIGN_DEFAULT`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the alignment which tells from which point of the parent the X and Y coordinates should be interpreted. The possible values are: `LV_ALIGN_DEFAULT`, `LV_ALIGN_TOP_LEFT/MID/RIGHT`, `LV_ALIGN_BOTTOM_LEFT/MID/RIGHT`, `LV_ALIGN_LEFT/RIGHT_MID`, `LV_ALIGN_CENTER`. `LV_ALIGN_DEFAULT` means `LV_ALIGN_TOP_LEFT` with LTR base direction and `LV_ALIGN_TOP_RIGHT` with RTL base direction."},
{'name': 'TRANSFORM_WIDTH',
'style_type': 'num', 'var_type': 'lv_coord_t', 'default':0, 'inherited': 0, 'layout': 0, 'ext_draw': 1,
'dsc': "Make the object wider on both sides with this value. Pixel and percentage (with `lv_pct(x)`) values can be used. Percentage values are relative to the object's width." },
{'name': 'TRANSFORM_HEIGHT',
'style_type': 'num', 'var_type': 'lv_coord_t', 'default':0, 'inherited': 0, 'layout': 0, 'ext_draw': 1,
'dsc': "Make the object higher on both sides with this value. Pixel and percentage (with `lv_pct(x)`) values can be used. Percentage values are relative to the object's height." },
{'name': 'TRANSLATE_X',
'style_type': 'num', 'var_type': 'lv_coord_t', 'default':0, 'inherited': 0, 'layout': 1, 'ext_draw': 0,
'dsc': "Move the object with this value in X direction. Applied after layouts, aligns and other positioning. Pixel and percentage (with `lv_pct(x)`) values can be used. Percentage values are relative to the object's width." },
{'name': 'TRANSLATE_Y',
'style_type': 'num', 'var_type': 'lv_coord_t', 'default':0, 'inherited': 0, 'layout': 1, 'ext_draw': 0,
'dsc': "Move the object with this value in Y direction. Applied after layouts, aligns and other positioning. Pixel and percentage (with `lv_pct(x)`) values can be used. Percentage values are relative to the object's height." },
{'name': 'TRANSFORM_ZOOM',
'style_type': 'num', 'var_type': 'lv_coord_t', 'default':0, 'inherited': 0, 'layout': 1, 'ext_draw': 1,
'dsc': "Zoom image-like objects. Multiplied with the zoom set on the object. The value 256 (or `LV_IMG_ZOOM_NONE`) means normal size, 128 half size, 512 double size, and so on" },
{'name': 'TRANSFORM_ANGLE',
'style_type': 'num', 'var_type': 'lv_coord_t', 'default':0, 'inherited': 0, 'layout': 1, 'ext_draw': 1,
'dsc': " Rotate image-like objects. Added to the rotation set on the object. The value is interpreted in 0.1 degree unit. E.g. 45 deg. = 450 " },
{'section': 'Padding', 'dsc':'Properties to describe spacing betwwen the parent\'s sides and the children and among the children. Very similar to the padding properties in HTML.' },
{'name': 'PAD_TOP',
'style_type': 'num', 'var_type': 'lv_coord_t', 'default':0, 'inherited': 0, 'layout': 1, 'ext_draw': 0,
'dsc': "Sets the padding on the top. It makes the content area smaller in this direction."},
{'name': 'PAD_BOTTOM',
'style_type': 'num', 'var_type': 'lv_coord_t', 'default':0, 'inherited': 0, 'layout': 1, 'ext_draw': 0,
'dsc': "Sets the padding on the bottom. It makes the content area smaller in this direction."},
{'name': 'PAD_LEFT',
'style_type': 'num', 'var_type': 'lv_coord_t', 'default':0, 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Sets the padding on the left. It makes the content area smaller in this direction."},
{'name': 'PAD_RIGHT',
'style_type': 'num', 'var_type': 'lv_coord_t', 'default':0, 'inherited': 0, 'layout': 1, 'ext_draw': 0,
'dsc': "Sets the padding on the right. It makes the content area smaller in this direction."},
{'name': 'PAD_ROW',
'style_type': 'num', 'var_type': 'lv_coord_t', 'default':0, 'inherited': 0, 'layout': 1, 'ext_draw': 0,
'dsc': "Sets the padding between the rows. Used by the layouts."},
{'name': 'PAD_COLUMN',
'style_type': 'num', 'var_type': 'lv_coord_t', 'default':0, 'inherited': 0, 'layout': 1, 'ext_draw': 0,
'dsc': "Sets the padding between the columns. Used by the layouts."},
{'section': 'Miscellaneous', 'dsc':'Mixed proprites for various purposes.' },
{'name': 'RADIUS',
'style_type': 'num', 'var_type': 'lv_coord_t', 'default':0, 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the radius on every corner. The value is interpreted in pixel (>= 0) or `LV_RADIUS_CIRCLE` for max. radius"},
{'name': 'CLIP_CORNER',
'style_type': 'num', 'var_type': 'bool', 'default':0, 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Enable to clip the overflowed content on the rounded corner. Can be `true` or `false`." },
{'name': 'OPA',
'style_type': 'num', 'var_type': 'lv_opa_t', 'default':'`LV_OPA_COVER`', 'inherited': 1, 'layout': 0, 'ext_draw': 0,
'dsc': "Scale down all opacity values of the object by this factor. Value 0, `LV_OPA_0` or `LV_OPA_TRANSP` means fully transparent, 256, `LV_OPA_100` or `LV_OPA_COVER` means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency." },
{'name': 'COLOR_FILTER_DSC',
'style_type': 'ptr', 'var_type': 'const lv_color_filter_dsc_t *', 'default':'`NULL`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Mix a color to all colors of the object." },
{'name': 'COLOR_FILTER_OPA',
'style_type': 'num', 'var_type': 'lv_opa_t' , 'default':'`LV_OPA_TRANSP`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "The intensity of mixing of color filter."},
{'name': 'ANIM_TIME',
'style_type': 'num', 'var_type': 'uint32_t' , 'default':0, 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "The animation time in milliseconds. It's meaning is widget specific. E.g. blink time of the cursor on the text area or scroll time of a roller. See the widgets' documentation to learn more."},
{'name': 'ANIM_SPEED',
'style_type': 'num', 'var_type': 'uint32_t' , 'default':0, 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "The animation speed in pixel/sec. It's meaning is widget specific. E.g. scroll speed of label. See the widgets' documentation to learn more."},
{'name': 'TRANSITION',
'style_type': 'ptr', 'var_type': 'const lv_style_transition_dsc_t *' , 'default':'`NULL`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "An initialized `lv_style_transition_dsc_t` to describe a transition."},
{'name': 'BLEND_MODE',
'style_type': 'num', 'var_type': 'lv_blend_mode_t' , 'default':'`LV_BLEND_MODE_NORMAL`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Describes how to blend the colors to the background. The possibel values are `LV_BLEND_MODE_NORMAL/ADDITIVE/SUBTRACTIVE/MULTIPLY`"},
{'name': 'LAYOUT',
'style_type': 'num', 'var_type': 'uint16_t', 'default':0, 'inherited': 0, 'layout': 1, 'ext_draw': 0,
'dsc': "Set the layout if the object. The children will be repositioned and resized according to the policies set for the layout. For the possible values see the documentation of the layouts."},
{'name': 'BASE_DIR',
'style_type': 'num', 'var_type': 'lv_base_dir_t', 'default':'`LV_BASE_DIR_AUTO`', 'inherited': 1, 'layout': 1, 'ext_draw': 0,
'dsc': "Set the base direction of the obejct. The possible values are `LV_BIDI_DIR_LTR/RTL/AUTO`."},
{'section': 'Background', 'dsc':'Properties for to describe the background color and image of the objects.' },
{'name': 'BG_COLOR',
'style_type': 'color', 'var_type': 'lv_color_t', 'default':'`0xffffff`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the background color of the object."},
{'name': 'BG_COLOR_FILTERED',
'style_type': 'color', 'var_type': 'lv_color_t' },
{'name': 'BG_OPA',
'style_type': 'num', 'var_type': 'lv_opa_t', 'default':'`LV_OPA_TRANSP`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the opacity of the background. Value 0, `LV_OPA_0` or `LV_OPA_TRANSP` means fully transparent, 256, `LV_OPA_100` or `LV_OPA_COVER` means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency."},
{'name': 'BG_GRAD_COLOR',
'style_type': 'color', 'var_type': 'lv_color_t', 'default':'`LV_OPA_TRANSP`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the gradient color of the background. Used only if `grad_dir` is not `LV_GRAD_DIR_NONE`"},
{'name': 'BG_GRAD_COLOR_FILTERED',
'style_type': 'color', 'var_type': 'lv_color_t' },
{'name': 'BG_GRAD_DIR',
'style_type': 'num', 'var_type': 'lv_grad_dir_t', 'default':'`LV_GRAD_DIR_NONE`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the direction of the gradient of the background. The possible values are `LV_GRAD_DIR_NONE/HOR/VER`."},
{'name': 'BG_MAIN_STOP',
'style_type': 'num', 'var_type': 'lv_coord_t', 'default':0, 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the point from which the background color should start for gradients. 0 means to top/left side, 255 the bottom/right side, 128 the center, and so on"},
{'name': 'BG_GRAD_STOP',
'style_type': 'num', 'var_type': 'lv_coord_t', 'default':255, 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the point from which the background's gradient color should start. 0 means to top/left side, 255 the bottom/right side, 128 the center, and so on"},
{'name': 'BG_IMG_SRC',
'style_type': 'ptr', 'var_type': 'const void *', 'default':'`NULL`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set a background image. Can be a pointer to `lv_img_dsc_t`, a path to a file or an `LV_SYMBOL_...`"},
{'name': 'BG_IMG_OPA',
'style_type': 'num', 'var_type': 'lv_opa_t', 'default':'`LV_OPA_COVER`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the opacity of the background image. Value 0, `LV_OPA_0` or `LV_OPA_TRANSP` means fully transparent, 256, `LV_OPA_100` or `LV_OPA_COVER` means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency."},
{'name': 'BG_IMG_RECOLOR',
'style_type': 'color', 'var_type': 'lv_color_t', 'default':'`0x000000`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set a color to mix to the background image."},
{'name': 'BG_IMG_RECOLOR_FILTERED',
'style_type': 'color', 'var_type': 'lv_color_t'},
{'name': 'BG_IMG_RECOLOR_OPA',
'style_type': 'num', 'var_type': 'lv_opa_t', 'default':'`LV_OPA_TRANSP`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the intensity of background image recoloring. Value 0, `LV_OPA_0` or `LV_OPA_TRANSP` means no mixing, 256, `LV_OPA_100` or `LV_OPA_COVER` means full recoloring, other values or LV_OPA_10, LV_OPA_20, etc are interpreted proportionally."},
{'name': 'BG_IMG_TILED',
'style_type': 'num', 'var_type': 'bool', 'default':0, 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "If enbaled the background image will be tiled. The possible values are `true` or `false`."},
{'section': 'Border', 'dsc':'Properties to describe the borders' },
{'name': 'BORDER_COLOR',
'style_type': 'color', 'var_type': 'lv_color_t', 'default':'`0x000000`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the color of the border"},
{'name': 'BORDER_COLOR_FILTERED',
'style_type': 'color', 'var_type': 'lv_color_t' },
{'name': 'BORDER_OPA',
'style_type': 'num', 'var_type': 'lv_opa_t' , 'default':'`LV_OPA_COVER`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the opcitiy of the border. Value 0, `LV_OPA_0` or `LV_OPA_TRANSP` means fully transparent, 256, `LV_OPA_100` or `LV_OPA_COVER` means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency."},
{'name': 'BORDER_WIDTH',
'style_type': 'num', 'var_type': 'lv_coord_t' , 'default':0, 'inherited': 0, 'layout': 1, 'ext_draw': 0,
'dsc': "Set hte width of the border. Only pixel values can be used."},
{'name': 'BORDER_SIDE',
'style_type': 'num', 'var_type': 'lv_border_side_t', 'default':'`LV_BORDER_SIDE_NONE`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set ony which side(s) the border should be drawn. The possible values are `LV_BORDER_SIDE_NONE/TOP/BOTTOM/LEFT/RIGHT/INTERNAL`. OR-ed calues an be used as well, e.g. `LV_BORDER_SIDE_TOP | LV_BORDER_SIDE_LEFT`."},
{'name': 'BORDER_POST',
'style_type': 'num', 'var_type': 'bool' , 'default':0, 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Sets whether the the border should be drawn before or after the children ar drawn. `true`: after children, `false`: before children"},
{'section': 'Text', 'dsc':'Properties to describe the propeties of text. All these properties are inherited.' },
{'name': 'TEXT_COLOR',
'style_type': 'color', 'var_type': 'lv_color_t', 'default':'`0x000000`', 'inherited': 1, 'layout': 0, 'ext_draw': 0,
'dsc': "Sets the color of the text."},
{'name': 'TEXT_COLOR_FILTERED',
'style_type': 'color', 'var_type': 'lv_color_t'},
{'name': 'TEXT_OPA',
'style_type': 'num', 'var_type': 'lv_opa_t', 'default':'`LV_OPA_COVER`', 'inherited': 1, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the opacity of the text. Value 0, `LV_OPA_0` or `LV_OPA_TRANSP` means fully transparent, 256, `LV_OPA_100` or `LV_OPA_COVER` means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency."},
{'name': 'TEXT_FONT',
'style_type': 'ptr', 'var_type': 'const lv_font_t *', 'default':'`LV_FONT_DEFAULT`', 'inherited': 1, 'layout': 1, 'ext_draw': 0,
'dsc': "Set the font of the text (a pointer `lv_font_t *`). "},
{'name': 'TEXT_LETTER_SPACE',
'style_type': 'num', 'var_type': 'lv_coord_t' , 'default':0, 'inherited': 1, 'layout': 1, 'ext_draw': 0,
'dsc': "Set the letter space in pixels"},
{'name': 'TEXT_LINE_SPACE',
'style_type': 'num', 'var_type': 'lv_coord_t' , 'default':0, 'inherited': 1, 'layout': 1, 'ext_draw': 0,
'dsc': "Set the line space in pixels."},
{'name': 'TEXT_DECOR',
'style_type': 'num', 'var_type': 'lv_text_decor_t' , 'default':'`LV_TEXT_DECOR_NONE`', 'inherited': 1, 'layout': 0, 'ext_draw': 0,
'dsc': "Set decoration for the text. The possible values are `LV_TEXT_DECOR_NONE/UNDERLINE/STRIKETHROUGH`. OR-ed values can be used as well." },
{'name': 'TEXT_ALIGN',
'style_type': 'num', 'var_type': 'lv_text_align_t' , 'default':'`LV_TEXT_ALIGN_AUTO`', 'inherited': 1, 'layout': 1, 'ext_draw': 0,
'dsc': "Set how to align the lines of the text. Note that it doesn't align the object itself, only the lines inside the object. The possible values are `LV_TEXT_ALIGN_LEFT/CENTER/RIGHT/AUTO`. `LV_TEXT_ALIGN_AUTO` detect the text base direction and uses left or right alignment accordingly"},
{'section': 'Image', 'dsc':'Properties to describe the images' },
{'name': 'IMG_OPA',
'style_type': 'num', 'var_type': 'lv_opa_t' , 'default':'`LV_OPA_COVER`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the opacity of an image. Value 0, `LV_OPA_0` or `LV_OPA_TRANSP` means fully transparent, 256, `LV_OPA_100` or `LV_OPA_COVER` means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency."},
{'name': 'IMG_RECOLOR',
'style_type': 'color', 'var_type': 'lv_color_t', 'default':'`0x000000`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set color to mixt to the image."},
{'name': 'IMG_RECOLOR_FILTERED',
'style_type': 'color', 'var_type': 'lv_color_t'},
{'name': 'IMG_RECOLOR_OPA',
'style_type': 'num', 'var_type': 'lv_opa_t' , 'default':0, 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the intensity of the color mixing. Value 0, `LV_OPA_0` or `LV_OPA_TRANSP` means fully transparent, 256, `LV_OPA_100` or `LV_OPA_COVER` means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency."},
{'section': 'Outline', 'dsc':'Properties to describe the outline. It\'s like a border but drawn outside of the rectangles.' },
{'name': 'OUTLINE_WIDTH',
'style_type': 'num', 'var_type': 'lv_coord_t' , 'default':0, 'inherited': 0, 'layout': 0, 'ext_draw': 1,
'dsc': "Set the width of the outline in pixels. "},
{'name': 'OUTLINE_COLOR',
'style_type': 'color', 'var_type': 'lv_color_t' , 'default':'`0x000000`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the color of the outline."},
{'name': 'OUTLINE_COLOR_FILTERED',
'style_type': 'color', 'var_type': 'lv_color_t'},
{'name': 'OUTLINE_OPA',
'style_type': 'num', 'var_type': 'lv_opa_t' , 'default':'`LV_OPA_COVER`', 'inherited': 0, 'layout': 0, 'ext_draw': 1,
'dsc': "Set the opacity of the outline. Value 0, `LV_OPA_0` or `LV_OPA_TRANSP` means fully transparent, 256, `LV_OPA_100` or `LV_OPA_COVER` means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency."},
{'name': 'OUTLINE_PAD',
'style_type': 'num', 'var_type': 'lv_coord_t' , 'default':0, 'inherited': 0, 'layout': 0, 'ext_draw': 1,
'dsc': "Set the padding of the outline, i.e. the gap between object and the outline."},
{'section': 'Shadow', 'dsc':'Properties to describe the shadow drawn under the rectangles.' },
{'name': 'SHADOW_WIDTH',
'style_type': 'num', 'var_type': 'lv_coord_t', 'default':0, 'inherited': 0, 'layout': 0, 'ext_draw': 1,
'dsc': "Set the width of the shadow in pixels. The value should be >= 0."},
{'name': 'SHADOW_OFS_X',
'style_type': 'num', 'var_type': 'lv_coord_t' , 'default':0, 'inherited': 0, 'layout': 0, 'ext_draw': 1,
'dsc': "Set an offset on the shadow in pixels in X direction. "},
{'name': 'SHADOW_OFS_Y',
'style_type': 'num', 'var_type': 'lv_coord_t' , 'default':0, 'inherited': 0, 'layout': 0, 'ext_draw': 1,
'dsc': "Set an offset on the shadow in pixels in Y direction. "},
{'name': 'SHADOW_SPREAD',
'style_type': 'num', 'var_type': 'lv_coord_t' , 'default':0, 'inherited': 0, 'layout': 0, 'ext_draw': 1,
'dsc': "Make the shadow calcuation to use a larger or smaller rectangle as base. The value can be in pixel to make the area larger/smaller"},
{'name': 'SHADOW_COLOR',
'style_type': 'color', 'var_type': 'lv_color_t' , 'default':'`0x000000`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the color of the shadow"},
{'name': 'SHADOW_COLOR_FILTERED',
'style_type': 'color', 'var_type': 'lv_color_t'},
{'name': 'SHADOW_OPA',
'style_type': 'num', 'var_type': 'lv_opa_t' , 'default':'`LV_OPA_COVER`', 'inherited': 0, 'layout': 0, 'ext_draw': 1,
'dsc': "Set the opacity of the shadow. Value 0, `LV_OPA_0` or `LV_OPA_TRANSP` means fully transparent, 256, `LV_OPA_100` or `LV_OPA_COVER` means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency."},
{'section': 'Line', 'dsc':'Properties to describe line-like objects' },
{'name': 'LINE_WIDTH',
'style_type': 'num', 'var_type': 'lv_coord_t' , 'default':0, 'inherited': 0, 'layout': 0, 'ext_draw': 1,
'dsc': "Set the width of the lines in pixel."},
{'name': 'LINE_DASH_WIDTH',
'style_type': 'num', 'var_type': 'lv_coord_t' , 'default':0, 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the width of dashes in pixel. Note that dash works only on horizontal and vertical lines"},
{'name': 'LINE_DASH_GAP',
'style_type': 'num', 'var_type': 'lv_coord_t', 'default':0, 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the gap between dashes in pixel. Note that dash works only on horizontal and vertical lines"},
{'name': 'LINE_ROUNDED',
'style_type': 'num', 'var_type': 'bool' , 'default':0, 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Make the end points of the lines rounded. `true`: rounded, `false`: perpendicular line ending "},
{'name': 'LINE_COLOR',
'style_type': 'color', 'var_type': 'lv_color_t' , 'default':'`0x000000`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the color fo the lines."},
{'name': 'LINE_COLOR_FILTERED',
'style_type': 'color', 'var_type': 'lv_color_t'},
{'name': 'LINE_OPA',
'style_type': 'num', 'var_type': 'lv_opa_t' , 'default':'`LV_OPA_COVER`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the opacity of the lines."},
{'section': 'Arc', 'dsc':'TODO' },
{'name': 'ARC_WIDTH',
'style_type': 'num', 'var_type': 'lv_coord_t' , 'default':0, 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the width (ticjkness) of the arcs in pixel."},
{'name': 'ARC_ROUNDED',
'style_type': 'num', 'var_type': 'bool' , 'default':0, 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Make the end points of the arcs rounded. `true`: rounded, `false`: perpendicular line ending "},
{'name': 'ARC_COLOR',
'style_type': 'color', 'var_type': 'lv_color_t', 'default':'`0x000000`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the color of the arc."},
{'name': 'ARC_COLOR_FILTERED',
'style_type': 'color', 'var_type': 'lv_color_t' },
{'name': 'ARC_OPA',
'style_type': 'num', 'var_type': 'lv_opa_t' , 'default':'`LV_OPA_COVER`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set the opacity of the arcs."},
{'name': 'ARC_IMG_SRC',
'style_type': 'ptr', 'var_type': 'const void *', 'default':'`NULL`', 'inherited': 0, 'layout': 0, 'ext_draw': 0,
'dsc': "Set an image from which the arc will be masked out. It's useful to display complex effects on the arcs. Can be a pointer to `lv_img_dsc_t` or a path to a file"},
]
def style_get_cast(style_type, var_type):
cast = ""
if style_type != 'color':
cast = "(" + var_type + ")"
return cast
def obj_style_get(p):
if 'section' in p: return
cast = style_get_cast(p['style_type'], p['var_type'])
print("static inline " + p['var_type'] + " lv_obj_get_style_" + p['name'].lower() +"(const struct _lv_obj_t * obj, uint32_t part)")
print("{")
print(" lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_" + p['name'] + ");")
print(" return " + cast + "v." + p['style_type'] + ";")
print("}")
print("")
def style_set_cast(style_type):
cast = ""
if style_type == 'num':
cast = "(int32_t)"
return cast
def style_set_c(p):
if 'section' in p: return
cast = style_set_cast(p['style_type'])
print("void lv_style_set_" + p['name'].lower() +"(lv_style_t * style, "+ p['var_type'] +" value)")
print("{")
print(" lv_style_value_t v = {")
print(" ." + p['style_type'] +" = " + cast + "value")
print(" };")
print(" lv_style_set_prop(style, LV_STYLE_" + p['name'] +", v);")
print("}")
print("")
def style_set_h(p):
if 'section' in p: return
print("void lv_style_set_" + p['name'].lower() +"(lv_style_t * style, "+ p['var_type'] +" value);")
def local_style_set_c(p):
if 'section' in p: return
cast = style_set_cast(p['style_type'])
print("void lv_obj_set_style_" + p['name'].lower() + "(struct _lv_obj_t * obj, " + p['var_type'] +" value, lv_style_selector_t selector)")
print("{")
print(" lv_style_value_t v = {")
print(" ." + p['style_type'] +" = " + cast + "value")
print(" };")
print(" lv_obj_set_local_style_prop(obj, LV_STYLE_" + p['name'] +", v, selector);")
print("}")
print("")
def local_style_set_h(p):
if 'section' in p: return
print("void lv_obj_set_style_" + p['name'].lower() + "(struct _lv_obj_t * obj, " + p['var_type'] +" value, lv_style_selector_t selector);")
def style_const_set(p):
if 'section' in p: return
cast = style_set_cast(p['style_type'])
print("#define LV_STYLE_CONST_" + p['name'] + "(val) \\")
print(" { \\")
print(" .prop = LV_STYLE_" + p['name'] + ", \\")
print(" .value = { \\")
print(" ." + p['style_type'] +" = " + cast + "val \\")
print(" } \\")
print(" }")
print("")
docs_prop_cnt = 0
def docs(p):
if "section" in p:
print("")
print("## " + p['section'])
print(p['dsc'])
return
if "default" not in p: return
d = str(p["default"])
i = "No"
if p["inherited"]: i = "Yes"
l = "No"
if p["layout"]: l = "Yes"
e = "No"
if p["ext_draw"]: e = "Yes"
li_style = "style='display:inline; margin-right: 20px; margin-left: 0px"
global docs_prop_cnt
div_style = "padding: 16px;"
if docs_prop_cnt % 2:
div_style += " background-color:#eee;"
docs_prop_cnt+=1
dsc = p['dsc'];
print("")
#print("<div style=\"" + div_style +"\">");
print("")
print("### " + p["name"].lower())
print(dsc)
print("<ul>")
print("<li " + li_style + "'><strong>Default</strong> " + d + "</li>")
print("<li " + li_style + "'><strong>Inherited</strong> " + i + "</li>")
print("<li " + li_style + "'><strong>Layout</strong> " + l + "</li>")
print("<li " + li_style + "'><strong>Ext. draw</strong> " + e + "</li>")
print("</ul>")
#print("</div>")
print("")
base_dir = os.path.abspath(os.path.dirname(__file__))
sys.stdout = open(base_dir + '/../src/core/lv_obj_style_gen.h', 'w')
for p in props:
obj_style_get(p)
for p in props:
local_style_set_h(p)
sys.stdout = open(base_dir + '/../src/core/lv_obj_style_gen.c', 'w')
print("#include \"lv_obj.h\"")
for p in props:
local_style_set_c(p)
sys.stdout = open(base_dir + '/../src/misc/lv_style_gen.c', 'w')
print("#include \"lv_style.h\"")
print("#include <stdbool.h>")
for p in props:
style_set_c(p)
sys.stdout = open(base_dir + '/../src/misc/lv_style_gen.h', 'w')
for p in props:
style_set_h(p)
for p in props:
style_const_set(p)
sys.stdout = open(base_dir + '/../docs/overview/style-props.md', 'w')
print('# Style properties')
for p in props:
docs(p)
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/scripts/style_api_gen.py | Python | apache-2.0 | 28,818 |
CSRCS += lv_disp.c
CSRCS += lv_group.c
CSRCS += lv_indev.c
CSRCS += lv_indev_scroll.c
CSRCS += lv_obj.c
CSRCS += lv_obj_class.c
CSRCS += lv_obj_draw.c
CSRCS += lv_obj_pos.c
CSRCS += lv_obj_scroll.c
CSRCS += lv_obj_style.c
CSRCS += lv_obj_style_gen.c
CSRCS += lv_obj_tree.c
CSRCS += lv_event.c
CSRCS += lv_refr.c
CSRCS += lv_theme.c
DEPPATH += --dep-path $(LVGL_DIR)/$(LVGL_DIR_NAME)/src/core
VPATH += :$(LVGL_DIR)/$(LVGL_DIR_NAME)/src/core
CFLAGS += "-I$(LVGL_DIR)/$(LVGL_DIR_NAME)/src/core"
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_core.mk | Makefile | apache-2.0 | 494 |
/**
* @file lv_disp.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_disp.h"
#include "../misc/lv_math.h"
#include "../core/lv_refr.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static void scr_load_anim_start(lv_anim_t * a);
static void opa_scale_anim(void * obj, int32_t v);
static void set_x_anim(void * obj, int32_t v);
static void set_y_anim(void * obj, int32_t v);
static void scr_anim_ready(lv_anim_t * a);
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
/**
* Return with a pointer to the active screen
* @param disp pointer to display which active screen should be get. (NULL to use the default
* screen)
* @return pointer to the active screen object (loaded by 'lv_scr_load()')
*/
lv_obj_t * lv_disp_get_scr_act(lv_disp_t * disp)
{
if(!disp) disp = lv_disp_get_default();
if(!disp) {
LV_LOG_WARN("no display registered to get its active screen");
return NULL;
}
return disp->act_scr;
}
/**
* Return with a pointer to the previous screen. Only used during screen transitions.
* @param disp pointer to display which previous screen should be get. (NULL to use the default
* screen)
* @return pointer to the previous screen object or NULL if not used now
*/
lv_obj_t * lv_disp_get_scr_prev(lv_disp_t * disp)
{
if(!disp) disp = lv_disp_get_default();
if(!disp) {
LV_LOG_WARN("no display registered to get its previous screen");
return NULL;
}
return disp->prev_scr;
}
/**
* Make a screen active
* @param scr pointer to a screen
*/
void lv_disp_load_scr(lv_obj_t * scr)
{
lv_disp_t * d = lv_obj_get_disp(scr);
if(!d) return; /*Shouldn't happen, just to be sure*/
lv_obj_t * old_scr = d->act_scr;
if(d->act_scr) lv_event_send(old_scr, LV_EVENT_SCREEN_UNLOAD_START, NULL);
if(d->act_scr) lv_event_send(scr, LV_EVENT_SCREEN_LOAD_START, NULL);
d->act_scr = scr;
if(d->act_scr) lv_event_send(scr, LV_EVENT_SCREEN_LOADED, NULL);
if(d->act_scr) lv_event_send(old_scr, LV_EVENT_SCREEN_UNLOADED, NULL);
lv_obj_invalidate(scr);
}
/**
* Return with the top layer. (Same on every screen and it is above the normal screen layer)
* @param disp pointer to display which top layer should be get. (NULL to use the default screen)
* @return pointer to the top layer object (transparent screen sized lv_obj)
*/
lv_obj_t * lv_disp_get_layer_top(lv_disp_t * disp)
{
if(!disp) disp = lv_disp_get_default();
if(!disp) {
LV_LOG_WARN("lv_layer_top: no display registered to get its top layer");
return NULL;
}
return disp->top_layer;
}
/**
* Return with the sys. layer. (Same on every screen and it is above the normal screen and the top
* layer)
* @param disp pointer to display which sys. layer should be retrieved. (NULL to use the default screen)
* @return pointer to the sys layer object (transparent screen sized lv_obj)
*/
lv_obj_t * lv_disp_get_layer_sys(lv_disp_t * disp)
{
if(!disp) disp = lv_disp_get_default();
if(!disp) {
LV_LOG_WARN("lv_layer_sys: no display registered to get its sys. layer");
return NULL;
}
return disp->sys_layer;
}
/**
* Set the theme of a display
* @param disp pointer to a display
*/
void lv_disp_set_theme(lv_disp_t * disp, lv_theme_t * th)
{
if(disp == NULL) disp = lv_disp_get_default();
disp->theme = th;
if(disp->screen_cnt == 3 &&
lv_obj_get_child_cnt(disp->screens[0]) == 0 &&
lv_obj_get_child_cnt(disp->screens[1]) == 0 &&
lv_obj_get_child_cnt(disp->screens[2]) == 0) {
lv_theme_apply(disp->screens[0]);
}
}
/**
* Get the theme of a display
* @param disp pointer to a display
* @return the display's theme (can be NULL)
*/
lv_theme_t * lv_disp_get_theme(lv_disp_t * disp)
{
if(disp == NULL) disp = lv_disp_get_default();
return disp->theme;
}
/**
* Set the background color of a display
* @param disp pointer to a display
* @param color color of the background
*/
void lv_disp_set_bg_color(lv_disp_t * disp, lv_color_t color)
{
if(!disp) disp = lv_disp_get_default();
if(!disp) {
LV_LOG_WARN("no display registered");
return;
}
disp->bg_color = color;
lv_area_t a;
lv_area_set(&a, 0, 0, lv_disp_get_hor_res(disp) - 1, lv_disp_get_ver_res(disp) - 1);
_lv_inv_area(disp, &a);
}
/**
* Set the background image of a display
* @param disp pointer to a display
* @param img_src path to file or pointer to an `lv_img_dsc_t` variable
*/
void lv_disp_set_bg_image(lv_disp_t * disp, const void * img_src)
{
if(!disp) disp = lv_disp_get_default();
if(!disp) {
LV_LOG_WARN("no display registered");
return;
}
disp->bg_img = img_src;
lv_area_t a;
lv_area_set(&a, 0, 0, lv_disp_get_hor_res(disp) - 1, lv_disp_get_ver_res(disp) - 1);
_lv_inv_area(disp, &a);
}
/**
* Set opacity of the background
* @param disp pointer to a display
* @param opa opacity (0..255)
*/
void lv_disp_set_bg_opa(lv_disp_t * disp, lv_opa_t opa)
{
if(!disp) disp = lv_disp_get_default();
if(!disp) {
LV_LOG_WARN("no display registered");
return;
}
disp->bg_opa = opa;
lv_area_t a;
lv_area_set(&a, 0, 0, lv_disp_get_hor_res(disp) - 1, lv_disp_get_ver_res(disp) - 1);
_lv_inv_area(disp, &a);
}
/**
* Switch screen with animation
* @param scr pointer to the new screen to load
* @param anim_type type of the animation from `lv_scr_load_anim_t`. E.g. `LV_SCR_LOAD_ANIM_MOVE_LEFT`
* @param time time of the animation
* @param delay delay before the transition
* @param auto_del true: automatically delete the old screen
*/
void lv_scr_load_anim(lv_obj_t * new_scr, lv_scr_load_anim_t anim_type, uint32_t time, uint32_t delay, bool auto_del)
{
lv_disp_t * d = lv_obj_get_disp(new_scr);
lv_obj_t * act_scr = lv_scr_act();
/*If an other screen load animation is in progress
*make target screen loaded immediately. */
if(d->scr_to_load && act_scr != d->scr_to_load) {
lv_disp_load_scr(d->scr_to_load);
lv_anim_del(d->scr_to_load, NULL);
lv_obj_set_pos(d->scr_to_load, 0, 0);
lv_obj_remove_local_style_prop(d->scr_to_load, LV_STYLE_OPA, 0);
if(d->del_prev) {
lv_obj_del(act_scr);
}
act_scr = d->scr_to_load;
}
d->scr_to_load = new_scr;
if(d->prev_scr && d->del_prev) {
lv_obj_del(d->prev_scr);
d->prev_scr = NULL;
}
d->del_prev = auto_del;
/*Be sure there is no other animation on the screens*/
lv_anim_del(new_scr, NULL);
lv_anim_del(lv_scr_act(), NULL);
/*Be sure both screens are in a normal position*/
lv_obj_set_pos(new_scr, 0, 0);
lv_obj_set_pos(lv_scr_act(), 0, 0);
lv_obj_remove_local_style_prop(new_scr, LV_STYLE_OPA, 0);
lv_obj_remove_local_style_prop(lv_scr_act(), LV_STYLE_OPA, 0);
lv_anim_t a_new;
lv_anim_init(&a_new);
lv_anim_set_var(&a_new, new_scr);
lv_anim_set_start_cb(&a_new, scr_load_anim_start);
lv_anim_set_ready_cb(&a_new, scr_anim_ready);
lv_anim_set_time(&a_new, time);
lv_anim_set_delay(&a_new, delay);
lv_anim_t a_old;
lv_anim_init(&a_old);
lv_anim_set_var(&a_old, d->act_scr);
lv_anim_set_time(&a_old, time);
lv_anim_set_delay(&a_old, delay);
switch(anim_type) {
case LV_SCR_LOAD_ANIM_NONE:
/*Create a dummy animation to apply the delay*/
lv_anim_set_exec_cb(&a_new, set_x_anim);
lv_anim_set_values(&a_new, 0, 0);
break;
case LV_SCR_LOAD_ANIM_OVER_LEFT:
lv_anim_set_exec_cb(&a_new, set_x_anim);
lv_anim_set_values(&a_new, lv_disp_get_hor_res(d), 0);
break;
case LV_SCR_LOAD_ANIM_OVER_RIGHT:
lv_anim_set_exec_cb(&a_new, set_x_anim);
lv_anim_set_values(&a_new, -lv_disp_get_hor_res(d), 0);
break;
case LV_SCR_LOAD_ANIM_OVER_TOP:
lv_anim_set_exec_cb(&a_new, set_y_anim);
lv_anim_set_values(&a_new, lv_disp_get_ver_res(d), 0);
break;
case LV_SCR_LOAD_ANIM_OVER_BOTTOM:
lv_anim_set_exec_cb(&a_new, set_y_anim);
lv_anim_set_values(&a_new, -lv_disp_get_ver_res(d), 0);
break;
case LV_SCR_LOAD_ANIM_MOVE_LEFT:
lv_anim_set_exec_cb(&a_new, set_x_anim);
lv_anim_set_values(&a_new, lv_disp_get_hor_res(d), 0);
lv_anim_set_exec_cb(&a_old, set_x_anim);
lv_anim_set_values(&a_old, 0, -lv_disp_get_hor_res(d));
break;
case LV_SCR_LOAD_ANIM_MOVE_RIGHT:
lv_anim_set_exec_cb(&a_new, set_x_anim);
lv_anim_set_values(&a_new, -lv_disp_get_hor_res(d), 0);
lv_anim_set_exec_cb(&a_old, set_x_anim);
lv_anim_set_values(&a_old, 0, lv_disp_get_hor_res(d));
break;
case LV_SCR_LOAD_ANIM_MOVE_TOP:
lv_anim_set_exec_cb(&a_new, set_y_anim);
lv_anim_set_values(&a_new, lv_disp_get_ver_res(d), 0);
lv_anim_set_exec_cb(&a_old, set_y_anim);
lv_anim_set_values(&a_old, 0, -lv_disp_get_ver_res(d));
break;
case LV_SCR_LOAD_ANIM_MOVE_BOTTOM:
lv_anim_set_exec_cb(&a_new, set_y_anim);
lv_anim_set_values(&a_new, -lv_disp_get_ver_res(d), 0);
lv_anim_set_exec_cb(&a_old, set_y_anim);
lv_anim_set_values(&a_old, 0, lv_disp_get_ver_res(d));
break;
case LV_SCR_LOAD_ANIM_FADE_ON:
lv_anim_set_exec_cb(&a_new, opa_scale_anim);
lv_anim_set_values(&a_new, LV_OPA_TRANSP, LV_OPA_COVER);
break;
}
lv_event_send(act_scr, LV_EVENT_SCREEN_UNLOAD_START, NULL);
lv_anim_start(&a_new);
lv_anim_start(&a_old);
}
/**
* Get elapsed time since last user activity on a display (e.g. click)
* @param disp pointer to a display (NULL to get the overall smallest inactivity)
* @return elapsed ticks (milliseconds) since the last activity
*/
uint32_t lv_disp_get_inactive_time(const lv_disp_t * disp)
{
if(disp) return lv_tick_elaps(disp->last_activity_time);
lv_disp_t * d;
uint32_t t = UINT32_MAX;
d = lv_disp_get_next(NULL);
while(d) {
uint32_t elaps = lv_tick_elaps(d->last_activity_time);
t = LV_MIN(t, elaps);
d = lv_disp_get_next(d);
}
return t;
}
/**
* Manually trigger an activity on a display
* @param disp pointer to a display (NULL to use the default display)
*/
void lv_disp_trig_activity(lv_disp_t * disp)
{
if(!disp) disp = lv_disp_get_default();
if(!disp) {
LV_LOG_WARN("lv_disp_trig_activity: no display registered");
return;
}
disp->last_activity_time = lv_tick_get();
}
/**
* Clean any CPU cache that is related to the display.
* @param disp pointer to a display (NULL to use the default display)
*/
void lv_disp_clean_dcache(lv_disp_t * disp)
{
if(!disp) disp = lv_disp_get_default();
if(!disp) {
LV_LOG_WARN("lv_disp_clean_dcache: no display registered");
return;
}
if(disp->driver->clean_dcache_cb)
disp->driver->clean_dcache_cb(disp->driver);
}
/**
* Get a pointer to the screen refresher timer to
* modify its parameters with `lv_timer_...` functions.
* @param disp pointer to a display
* @return pointer to the display refresher timer. (NULL on error)
*/
lv_timer_t * _lv_disp_get_refr_timer(lv_disp_t * disp)
{
if(!disp) disp = lv_disp_get_default();
if(!disp) {
LV_LOG_WARN("lv_disp_get_refr_timer: no display registered");
return NULL;
}
return disp->refr_timer;
}
/**********************
* STATIC FUNCTIONS
**********************/
static void scr_load_anim_start(lv_anim_t * a)
{
lv_disp_t * d = lv_obj_get_disp(a->var);
d->prev_scr = lv_scr_act();
d->act_scr = a->var;
lv_event_send(d->act_scr, LV_EVENT_SCREEN_LOAD_START, NULL);
}
static void opa_scale_anim(void * obj, int32_t v)
{
lv_obj_set_style_opa(obj, v, 0);
}
static void set_x_anim(void * obj, int32_t v)
{
lv_obj_set_x(obj, v);
}
static void set_y_anim(void * obj, int32_t v)
{
lv_obj_set_y(obj, v);
}
static void scr_anim_ready(lv_anim_t * a)
{
lv_disp_t * d = lv_obj_get_disp(a->var);
lv_event_send(d->act_scr, LV_EVENT_SCREEN_LOADED, NULL);
lv_event_send(d->prev_scr, LV_EVENT_SCREEN_UNLOADED, NULL);
if(d->prev_scr && d->del_prev) lv_obj_del(d->prev_scr);
d->prev_scr = NULL;
d->scr_to_load = NULL;
lv_obj_remove_local_style_prop(a->var, LV_STYLE_OPA, 0);
}
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_disp.c | C | apache-2.0 | 12,925 |
/**
* @file lv_disp.h
*
*/
#ifndef LV_DISP_H
#define LV_DISP_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "../hal/lv_hal.h"
#include "lv_obj.h"
#include "lv_theme.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
typedef enum {
LV_SCR_LOAD_ANIM_NONE,
LV_SCR_LOAD_ANIM_OVER_LEFT,
LV_SCR_LOAD_ANIM_OVER_RIGHT,
LV_SCR_LOAD_ANIM_OVER_TOP,
LV_SCR_LOAD_ANIM_OVER_BOTTOM,
LV_SCR_LOAD_ANIM_MOVE_LEFT,
LV_SCR_LOAD_ANIM_MOVE_RIGHT,
LV_SCR_LOAD_ANIM_MOVE_TOP,
LV_SCR_LOAD_ANIM_MOVE_BOTTOM,
LV_SCR_LOAD_ANIM_FADE_ON,
} lv_scr_load_anim_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Return with a pointer to the active screen
* @param disp pointer to display which active screen should be get. (NULL to use the default
* screen)
* @return pointer to the active screen object (loaded by 'lv_scr_load()')
*/
lv_obj_t * lv_disp_get_scr_act(lv_disp_t * disp);
/**
* Return with a pointer to the previous screen. Only used during screen transitions.
* @param disp pointer to display which previous screen should be get. (NULL to use the default
* screen)
* @return pointer to the previous screen object or NULL if not used now
*/
lv_obj_t * lv_disp_get_scr_prev(lv_disp_t * disp);
/**
* Make a screen active
* @param scr pointer to a screen
*/
void lv_disp_load_scr(lv_obj_t * scr);
/**
* Return with the top layer. (Same on every screen and it is above the normal screen layer)
* @param disp pointer to display which top layer should be get. (NULL to use the default screen)
* @return pointer to the top layer object (transparent screen sized lv_obj)
*/
lv_obj_t * lv_disp_get_layer_top(lv_disp_t * disp);
/**
* Return with the sys. layer. (Same on every screen and it is above the normal screen and the top
* layer)
* @param disp pointer to display which sys. layer should be retrieved. (NULL to use the default screen)
* @return pointer to the sys layer object (transparent screen sized lv_obj)
*/
lv_obj_t * lv_disp_get_layer_sys(lv_disp_t * disp);
/**
* Set the theme of a display
* @param disp pointer to a display
*/
void lv_disp_set_theme(lv_disp_t * disp, lv_theme_t * th);
/**
* Get the theme of a display
* @param disp pointer to a display
* @return the display's theme (can be NULL)
*/
lv_theme_t * lv_disp_get_theme(lv_disp_t * disp);
/**
* Set the background color of a display
* @param disp pointer to a display
* @param color color of the background
*/
void lv_disp_set_bg_color(lv_disp_t * disp, lv_color_t color);
/**
* Set the background image of a display
* @param disp pointer to a display
* @param img_src path to file or pointer to an `lv_img_dsc_t` variable
*/
void lv_disp_set_bg_image(lv_disp_t * disp, const void * img_src);
/**
* Set opacity of the background
* @param disp pointer to a display
* @param opa opacity (0..255)
*/
void lv_disp_set_bg_opa(lv_disp_t * disp, lv_opa_t opa);
/**
* Switch screen with animation
* @param scr pointer to the new screen to load
* @param anim_type type of the animation from `lv_scr_load_anim_t`. E.g. `LV_SCR_LOAD_ANIM_MOVE_LEFT`
* @param time time of the animation
* @param delay delay before the transition
* @param auto_del true: automatically delete the old screen
*/
void lv_scr_load_anim(lv_obj_t * scr, lv_scr_load_anim_t anim_type, uint32_t time, uint32_t delay, bool auto_del);
/**
* Get elapsed time since last user activity on a display (e.g. click)
* @param disp pointer to a display (NULL to get the overall smallest inactivity)
* @return elapsed ticks (milliseconds) since the last activity
*/
uint32_t lv_disp_get_inactive_time(const lv_disp_t * disp);
/**
* Manually trigger an activity on a display
* @param disp pointer to a display (NULL to use the default display)
*/
void lv_disp_trig_activity(lv_disp_t * disp);
/**
* Clean any CPU cache that is related to the display.
* @param disp pointer to a display (NULL to use the default display)
*/
void lv_disp_clean_dcache(lv_disp_t * disp);
/**
* Get a pointer to the screen refresher timer to
* modify its parameters with `lv_timer_...` functions.
* @param disp pointer to a display
* @return pointer to the display refresher timer. (NULL on error)
*/
lv_timer_t * _lv_disp_get_refr_timer(lv_disp_t * disp);
/*------------------------------------------------
* To improve backward compatibility
* Recommended only if you have one display
*------------------------------------------------*/
/**
* Get the active screen of the default display
* @return pointer to the active screen
*/
static inline lv_obj_t * lv_scr_act(void)
{
return lv_disp_get_scr_act(lv_disp_get_default());
}
/**
* Get the top layer of the default display
* @return pointer to the top layer
*/
static inline lv_obj_t * lv_layer_top(void)
{
return lv_disp_get_layer_top(lv_disp_get_default());
}
/**
* Get the active screen of the default display
* @return pointer to the sys layer
*/
static inline lv_obj_t * lv_layer_sys(void)
{
return lv_disp_get_layer_sys(lv_disp_get_default());
}
static inline void lv_scr_load(lv_obj_t * scr)
{
lv_disp_load_scr(scr);
}
/**********************
* MACROS
**********************/
/*------------------------------------------------
* To improve backward compatibility
* Recommended only if you have one display
*------------------------------------------------*/
#ifndef LV_HOR_RES
/**
* The horizontal resolution of the currently active display.
*/
#define LV_HOR_RES lv_disp_get_hor_res(lv_disp_get_default())
#endif
#ifndef LV_VER_RES
/**
* The vertical resolution of the currently active display.
*/
#define LV_VER_RES lv_disp_get_ver_res(lv_disp_get_default())
#endif
/**
* Scale the given number of pixels (a distance or size) relative to a 160 DPI display
* considering the DPI of the default display.
* It ensures that e.g. `lv_dpx(100)` will have the same physical size regardless to the
* DPI of the display.
* @param n the number of pixels to scale
* @return `n x current_dpi/160`
*/
static inline lv_coord_t lv_dpx(lv_coord_t n)
{
return LV_DPX(n);
}
/**
* Scale the given number of pixels (a distance or size) relative to a 160 DPI display
* considering the DPI of the given display.
* It ensures that e.g. `lv_dpx(100)` will have the same physical size regardless to the
* DPI of the display.
* @param obj a display whose dpi should be considered
* @param n the number of pixels to scale
* @return `n x current_dpi/160`
*/
static inline lv_coord_t lv_disp_dpx(const lv_disp_t * disp, lv_coord_t n)
{
return _LV_DPX_CALC(lv_disp_get_dpi(disp), n);
}
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_DISP_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_disp.h | C | apache-2.0 | 6,865 |
/**
* @file lv_event.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_obj.h"
#include "lv_indev.h"
/*********************
* DEFINES
*********************/
#define MY_CLASS &lv_obj_class
/**********************
* TYPEDEFS
**********************/
typedef struct _lv_event_dsc_t {
lv_event_cb_t cb;
void * user_data;
lv_event_code_t filter : 8;
} lv_event_dsc_t;
/**********************
* STATIC PROTOTYPES
**********************/
static lv_event_dsc_t * lv_obj_get_event_dsc(const lv_obj_t * obj, uint32_t id);
static lv_res_t event_send_core(lv_event_t * e);
static bool event_is_bubbled(lv_event_t * e);
/**********************
* STATIC VARIABLES
**********************/
static lv_event_t * event_head;
/**********************
* MACROS
**********************/
#if LV_LOG_TRACE_EVENT
#define EVENT_TRACE(...) LV_LOG_TRACE(__VA_ARGS__)
#else
#define EVENT_TRACE(...)
#endif
/**********************
* GLOBAL FUNCTIONS
**********************/
lv_res_t lv_event_send(lv_obj_t * obj, lv_event_code_t event_code, void * param)
{
if(obj == NULL) return LV_RES_OK;
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_event_t e;
e.target = obj;
e.current_target = obj;
e.code = event_code;
e.user_data = NULL;
e.param = param;
e.deleted = 0;
/*Build a simple linked list from the objects used in the events
*It's important to know if an this object was deleted by a nested event
*called from this `event_cb`.*/
e.prev = event_head;
event_head = &e;
/*Send the event*/
lv_res_t res = event_send_core(&e);
/*Remove this element from the list*/
event_head = e.prev;
return res;
}
lv_res_t lv_obj_event_base(const lv_obj_class_t * class_p, lv_event_t * e)
{
const lv_obj_class_t * base;
if(class_p == NULL) base = e->current_target->class_p;
else base = class_p->base_class;
/*Find a base in which Call the ancestor's event handler_cb is set*/
while(base && base->event_cb == NULL) base = base->base_class;
if(base == NULL) return LV_RES_OK;
if(base->event_cb == NULL) return LV_RES_OK;
/*Call the actual event callback*/
e->user_data = NULL;
base->event_cb(base, e);
lv_res_t res = LV_RES_OK;
/*Stop if the object is deleted*/
if(e->deleted) res = LV_RES_INV;
return res;
}
lv_obj_t * lv_event_get_target(lv_event_t * e)
{
return e->target;
}
lv_obj_t * lv_event_get_current_target(lv_event_t * e)
{
return e->current_target;
}
lv_event_code_t lv_event_get_code(lv_event_t * e)
{
return e->code;
}
void * lv_event_get_param(lv_event_t * e)
{
return e->param;
}
void * lv_event_get_user_data(lv_event_t * e)
{
return e->user_data;
}
uint32_t lv_event_register_id(void)
{
static uint32_t last_id = _LV_EVENT_LAST;
last_id ++;
return last_id;
}
void _lv_event_mark_deleted(lv_obj_t * obj)
{
lv_event_t * e = event_head;
while(e) {
if(e->current_target == obj || e->target == obj) e->deleted = 1;
e = e->prev;
}
}
struct _lv_event_dsc_t * lv_obj_add_event_cb(lv_obj_t * obj, lv_event_cb_t event_cb, lv_event_code_t filter,
void * user_data)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_obj_allocate_spec_attr(obj);
obj->spec_attr->event_dsc_cnt++;
obj->spec_attr->event_dsc = lv_mem_realloc(obj->spec_attr->event_dsc,
obj->spec_attr->event_dsc_cnt * sizeof(lv_event_dsc_t));
LV_ASSERT_MALLOC(obj->spec_attr->event_dsc);
obj->spec_attr->event_dsc[obj->spec_attr->event_dsc_cnt - 1].cb = event_cb;
obj->spec_attr->event_dsc[obj->spec_attr->event_dsc_cnt - 1].filter = filter;
obj->spec_attr->event_dsc[obj->spec_attr->event_dsc_cnt - 1].user_data = user_data;
return &obj->spec_attr->event_dsc[obj->spec_attr->event_dsc_cnt - 1];
}
bool lv_obj_remove_event_cb(lv_obj_t * obj, lv_event_cb_t event_cb)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
if(obj->spec_attr == NULL) return false;
int32_t i = 0;
for(i = 0; i < obj->spec_attr->event_dsc_cnt; i++) {
if(event_cb == NULL || obj->spec_attr->event_dsc[i].cb == event_cb) {
/*Shift the remaining event handlers forward*/
for(; i < (obj->spec_attr->event_dsc_cnt - 1); i++) {
obj->spec_attr->event_dsc[i] = obj->spec_attr->event_dsc[i + 1];
}
obj->spec_attr->event_dsc_cnt--;
obj->spec_attr->event_dsc = lv_mem_realloc(obj->spec_attr->event_dsc,
obj->spec_attr->event_dsc_cnt * sizeof(lv_event_dsc_t));
LV_ASSERT_MALLOC(obj->spec_attr->event_dsc);
return true;
}
}
/*No event handler found*/
return false;
}
bool lv_obj_remove_event_cb_with_user_data(lv_obj_t * obj, lv_event_cb_t event_cb, const void * user_data)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
if(obj->spec_attr == NULL) return false;
int32_t i = 0;
for(i = 0; i < obj->spec_attr->event_dsc_cnt; i++) {
if((event_cb == NULL || obj->spec_attr->event_dsc[i].cb) &&
obj->spec_attr->event_dsc[i].user_data == user_data) {
/*Shift the remaining event handlers forward*/
for(; i < (obj->spec_attr->event_dsc_cnt - 1); i++) {
obj->spec_attr->event_dsc[i] = obj->spec_attr->event_dsc[i + 1];
}
obj->spec_attr->event_dsc_cnt--;
obj->spec_attr->event_dsc = lv_mem_realloc(obj->spec_attr->event_dsc,
obj->spec_attr->event_dsc_cnt * sizeof(lv_event_dsc_t));
LV_ASSERT_MALLOC(obj->spec_attr->event_dsc);
return true;
}
}
/*No event handler found*/
return false;
}
bool lv_obj_remove_event_dsc(lv_obj_t * obj, struct _lv_event_dsc_t * event_dsc)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
if(obj->spec_attr == NULL) return false;
int32_t i = 0;
for(i = 0; i < obj->spec_attr->event_dsc_cnt; i++) {
if(&obj->spec_attr->event_dsc[i] == event_dsc) {
/*Shift the remaining event handlers forward*/
for(; i < (obj->spec_attr->event_dsc_cnt - 1); i++) {
obj->spec_attr->event_dsc[i] = obj->spec_attr->event_dsc[i + 1];
}
obj->spec_attr->event_dsc_cnt--;
obj->spec_attr->event_dsc = lv_mem_realloc(obj->spec_attr->event_dsc,
obj->spec_attr->event_dsc_cnt * sizeof(lv_event_dsc_t));
LV_ASSERT_MALLOC(obj->spec_attr->event_dsc);
return true;
}
}
/*No event handler found*/
return false;
}
lv_indev_t * lv_event_get_indev(lv_event_t * e)
{
if(e->code == LV_EVENT_PRESSED ||
e->code == LV_EVENT_PRESSING ||
e->code == LV_EVENT_PRESS_LOST ||
e->code == LV_EVENT_SHORT_CLICKED ||
e->code == LV_EVENT_LONG_PRESSED ||
e->code == LV_EVENT_LONG_PRESSED_REPEAT ||
e->code == LV_EVENT_CLICKED ||
e->code == LV_EVENT_RELEASED ||
e->code == LV_EVENT_SCROLL_BEGIN ||
e->code == LV_EVENT_SCROLL_END ||
e->code == LV_EVENT_SCROLL ||
e->code == LV_EVENT_GESTURE ||
e->code == LV_EVENT_KEY ||
e->code == LV_EVENT_FOCUSED ||
e->code == LV_EVENT_DEFOCUSED ||
e->code == LV_EVENT_LEAVE) {
return lv_event_get_param(e);
}
else {
LV_LOG_WARN("Not interpreted with this event code");
return NULL;
}
}
lv_obj_draw_part_dsc_t * lv_event_get_draw_part_dsc(lv_event_t * e)
{
if(e->code == LV_EVENT_DRAW_PART_BEGIN ||
e->code == LV_EVENT_DRAW_PART_END) {
return lv_event_get_param(e);
}
else {
LV_LOG_WARN("Not interpreted with this event code");
return NULL;
}
}
const lv_area_t * lv_event_get_clip_area(lv_event_t * e)
{
if(e->code == LV_EVENT_DRAW_MAIN ||
e->code == LV_EVENT_DRAW_MAIN_BEGIN ||
e->code == LV_EVENT_DRAW_MAIN_END ||
e->code == LV_EVENT_DRAW_POST ||
e->code == LV_EVENT_DRAW_POST_BEGIN ||
e->code == LV_EVENT_DRAW_POST_END) {
return lv_event_get_param(e);
}
else {
LV_LOG_WARN("Not interpreted with this event code");
return NULL;
}
}
const lv_area_t * lv_event_get_old_size(lv_event_t * e)
{
if(e->code == LV_EVENT_SIZE_CHANGED) {
return lv_event_get_param(e);
}
else {
LV_LOG_WARN("Not interpreted with this event code");
return NULL;
}
}
uint32_t lv_event_get_key(lv_event_t * e)
{
if(e->code == LV_EVENT_KEY) {
uint32_t * k = lv_event_get_param(e);
if(k) return *k;
else return 0;
}
else {
LV_LOG_WARN("Not interpreted with this event code");
return 0;
}
}
lv_anim_t * lv_event_get_scroll_anim(lv_event_t * e)
{
if(e->code == LV_EVENT_SCROLL_BEGIN) {
return lv_event_get_param(e);
}
else {
LV_LOG_WARN("Not interpreted with this event code");
return 0;
}
}
void lv_event_set_ext_draw_size(lv_event_t * e, lv_coord_t size)
{
if(e->code == LV_EVENT_REFR_EXT_DRAW_SIZE) {
lv_coord_t * cur_size = lv_event_get_param(e);
*cur_size = LV_MAX(*cur_size, size);
}
else {
LV_LOG_WARN("Not interpreted with this event code");
}
}
lv_point_t * lv_event_get_self_size_info(lv_event_t * e)
{
if(e->code == LV_EVENT_GET_SELF_SIZE) {
return lv_event_get_param(e);
}
else {
LV_LOG_WARN("Not interpreted with this event code");
return 0;
}
}
lv_hit_test_info_t * lv_event_get_hit_test_info(lv_event_t * e)
{
if(e->code == LV_EVENT_HIT_TEST) {
return lv_event_get_param(e);
}
else {
LV_LOG_WARN("Not interpreted with this event code");
return 0;
}
}
const lv_area_t * lv_event_get_cover_area(lv_event_t * e)
{
if(e->code == LV_EVENT_COVER_CHECK) {
lv_cover_check_info_t * p = lv_event_get_param(e);
return p->area;
}
else {
LV_LOG_WARN("Not interpreted with this event code");
return NULL;
}
}
void lv_event_set_cover_res(lv_event_t * e, lv_cover_res_t res)
{
if(e->code == LV_EVENT_COVER_CHECK) {
lv_cover_check_info_t * p = lv_event_get_param(e);
if(res > p->res) p->res = res; /*Save only "stronger" results*/
}
else {
LV_LOG_WARN("Not interpreted with this event code");
}
}
/**********************
* STATIC FUNCTIONS
**********************/
static lv_event_dsc_t * lv_obj_get_event_dsc(const lv_obj_t * obj, uint32_t id)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
if(!obj->spec_attr) return NULL;
if(id >= obj->spec_attr->event_dsc_cnt) return NULL;
return &obj->spec_attr->event_dsc[id];
}
static lv_res_t event_send_core(lv_event_t * e)
{
EVENT_TRACE("Sending event %d to %p with %p param", e->code, (void *)e->current_target, e->param);
/*Call the input device's feedback callback if set*/
lv_indev_t * indev_act = lv_indev_get_act();
if(indev_act) {
if(indev_act->driver->feedback_cb) indev_act->driver->feedback_cb(indev_act->driver, e->code);
}
lv_event_dsc_t * event_dsc = lv_obj_get_event_dsc(e->current_target, 0);
lv_res_t res = LV_RES_OK;
res = lv_obj_event_base(NULL, e);
uint32_t i = 0;
while(event_dsc && res == LV_RES_OK) {
if(event_dsc->cb && (event_dsc->filter == LV_EVENT_ALL || event_dsc->filter == e->code)) {
e->user_data = event_dsc->user_data;
event_dsc->cb(e);
/*Stop if the object is deleted*/
if(e->deleted) return LV_RES_INV;
}
i++;
event_dsc = lv_obj_get_event_dsc(e->current_target, i);
}
if(res == LV_RES_OK && e->current_target->parent && event_is_bubbled(e))
{
e->current_target = e->current_target->parent;
res = event_send_core(e);
if(res != LV_RES_OK) return LV_RES_INV;
}
return res;
}
static bool event_is_bubbled(lv_event_t * e)
{
/*Event codes that always bubble*/
switch(e->code) {
case LV_EVENT_CHILD_CREATED:
case LV_EVENT_CHILD_DELETED:
return true;
default:
break;
}
/*Check other codes only if bubbling is enabled*/
if(lv_obj_has_flag(e->current_target, LV_OBJ_FLAG_EVENT_BUBBLE) == false) return false;
switch(e->code) {
case LV_EVENT_HIT_TEST:
case LV_EVENT_COVER_CHECK:
case LV_EVENT_REFR_EXT_DRAW_SIZE:
case LV_EVENT_DRAW_MAIN_BEGIN:
case LV_EVENT_DRAW_MAIN:
case LV_EVENT_DRAW_MAIN_END:
case LV_EVENT_DRAW_POST_BEGIN:
case LV_EVENT_DRAW_POST:
case LV_EVENT_DRAW_POST_END:
case LV_EVENT_DRAW_PART_BEGIN:
case LV_EVENT_DRAW_PART_END:
case LV_EVENT_REFRESH:
case LV_EVENT_DELETE:
case LV_EVENT_CHILD_CREATED:
case LV_EVENT_CHILD_DELETED:
case LV_EVENT_CHILD_CHANGED:
case LV_EVENT_SIZE_CHANGED:
case LV_EVENT_STYLE_CHANGED:
case LV_EVENT_GET_SELF_SIZE:
return false;
default:
return true;
}
}
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_event.c | C | apache-2.0 | 13,287 |
/**
* @file lv_templ.h
*
*/
#ifndef LV_EVENT_H
#define LV_EVENT_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include <stdbool.h>
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
struct _lv_obj_t;
struct _lv_event_dsc_t;
/**
* Type of event being sent to the object.
*/
typedef enum {
LV_EVENT_ALL = 0,
/** Input device events*/
LV_EVENT_PRESSED, /**< The object has been pressed*/
LV_EVENT_PRESSING, /**< The object is being pressed (called continuously while pressing)*/
LV_EVENT_PRESS_LOST, /**< The object is still being pressed but slid cursor/finger off of the object */
LV_EVENT_SHORT_CLICKED, /**< The object was pressed for a short period of time, then released it. Not called if scrolled.*/
LV_EVENT_LONG_PRESSED, /**< Object has been pressed for at least `long_press_time`. Not called if scrolled.*/
LV_EVENT_LONG_PRESSED_REPEAT, /**< Called after `long_press_time` in every `long_press_repeat_time` ms. Not called if scrolled.*/
LV_EVENT_CLICKED, /**< Called on release if not scrolled (regardless to long press)*/
LV_EVENT_RELEASED, /**< Called in every cases when the object has been released*/
LV_EVENT_SCROLL_BEGIN, /**< Scrolling begins*/
LV_EVENT_SCROLL_END, /**< Scrolling ends*/
LV_EVENT_SCROLL, /**< Scrolling*/
LV_EVENT_GESTURE, /**< A gesture is detected. Get the gesture with `lv_indev_get_gesture_dir(lv_indev_get_act());` */
LV_EVENT_KEY, /**< A key is sent to the object. Get the key with `lv_indev_get_key(lv_indev_get_act());`*/
LV_EVENT_FOCUSED, /**< The object is focused*/
LV_EVENT_DEFOCUSED, /**< The object is defocused*/
LV_EVENT_LEAVE, /**< The object is defocused but still selected*/
LV_EVENT_HIT_TEST, /**< Perform advanced hit-testing*/
/** Drawing events*/
LV_EVENT_COVER_CHECK, /**< Check if the object fully covers an area. The event parameter is `lv_cover_check_info_t *`.*/
LV_EVENT_REFR_EXT_DRAW_SIZE, /**< Get the required extra draw area around the object (e.g. for shadow). The event parameter is `lv_coord_t *` to store the size.*/
LV_EVENT_DRAW_MAIN_BEGIN, /**< Starting the main drawing phase*/
LV_EVENT_DRAW_MAIN, /**< Perform the main drawing*/
LV_EVENT_DRAW_MAIN_END, /**< Finishing the main drawing phase*/
LV_EVENT_DRAW_POST_BEGIN, /**< Starting the post draw phase (when all children are drawn)*/
LV_EVENT_DRAW_POST, /**< Perform the post draw phase (when all children are drawn)*/
LV_EVENT_DRAW_POST_END, /**< Finishing the post draw phase (when all children are drawn)*/
LV_EVENT_DRAW_PART_BEGIN, /**< Starting to draw a part. The event parameter is `lv_obj_draw_dsc_t *`. */
LV_EVENT_DRAW_PART_END, /**< Finishing to draw a part. The event parameter is `lv_obj_draw_dsc_t *`. */
/** Special events*/
LV_EVENT_VALUE_CHANGED, /**< The object's value has changed (i.e. slider moved)*/
LV_EVENT_INSERT, /**< A text is inserted to the object. The event data is `char *` being inserted.*/
LV_EVENT_REFRESH, /**< Notify the object to refresh something on it (for the user)*/
LV_EVENT_READY, /**< A process has finished*/
LV_EVENT_CANCEL, /**< A process has been cancelled */
/** Other events*/
LV_EVENT_DELETE, /**< Object is being deleted*/
LV_EVENT_CHILD_CHANGED, /**< Child was removed, added, or its size, position were changed */
LV_EVENT_CHILD_CREATED, /**< Child was created, always bubbles up to all parents*/
LV_EVENT_CHILD_DELETED, /**< Child was deleted, always bubbles up to all parents*/
LV_EVENT_SCREEN_UNLOAD_START, /**< A screen unload started, fired immediately when scr_load is called*/
LV_EVENT_SCREEN_LOAD_START, /**< A screen load started, fired when the screen change delay is expired*/
LV_EVENT_SCREEN_LOADED, /**< A screen was loaded*/
LV_EVENT_SCREEN_UNLOADED, /**< A screen was unloaded*/
LV_EVENT_SIZE_CHANGED, /**< Object coordinates/size have changed*/
LV_EVENT_STYLE_CHANGED, /**< Object's style has changed*/
LV_EVENT_LAYOUT_CHANGED, /**< The children position has changed due to a layout recalculation*/
LV_EVENT_GET_SELF_SIZE, /**< Get the internal size of a widget*/
_LV_EVENT_LAST /** Number of default events*/
} lv_event_code_t;
typedef struct _lv_event_t {
struct _lv_obj_t * target;
struct _lv_obj_t * current_target;
lv_event_code_t code;
void * user_data;
void * param;
struct _lv_event_t * prev;
uint8_t deleted : 1;
} lv_event_t;
/**
* @brief Event callback.
* Events are used to notify the user of some action being taken on the object.
* For details, see ::lv_event_t.
*/
typedef void (*lv_event_cb_t)(lv_event_t * e);
/**
* Used as the event parameter of ::LV_EVENT_HIT_TEST to check if an `point` can click the object or not.
* `res` should be set like this:
* - If already set to `false` an other event wants that point non clickable. If you want to respect it leave it as `false` or set `true` to overwrite it.
* - If already set `true` and `point` shouldn't be clickable set to `false`
* - If already set to `true` you agree that `point` can click the object leave it as `true`
*/
typedef struct {
const lv_point_t * point; /**< A point relative to screen to check if it can click the object or not*/
bool res; /**< true: `point` can click the object; false: it cannot*/
} lv_hit_test_info_t;
/**
* Used as the event parameter of ::LV_EVENT_COVER_CHECK to check if an area is covered by the object or not.
* In the event use `const lv_area_t * area = lv_event_get_cover_area(e)` to get the area to check
* and `lv_event_set_cover_res(e, res)` to set the result.
*/
typedef struct {
lv_cover_res_t res;
const lv_area_t * area;
} lv_cover_check_info_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Send an event to the object
* @param obj pointer to an object
* @param event_code the type of the event from `lv_event_t`
* @param param arbitrary data depending on the widget type and the event. (Usually `NULL`)
* @return LV_RES_OK: `obj` was not deleted in the event; LV_RES_INV: `obj` was deleted in the event_code
*/
lv_res_t lv_event_send(struct _lv_obj_t * obj, lv_event_code_t event_code, void * param);
/**
* Used by the widgets internally to call the ancestor widget types's event handler
* @param class_p pointer to the class of the widget (NOT the ancestor class)
* @param e pointer to the event descriptor
* @return LV_RES_OK: the taget object was not deleted in the event; LV_RES_INV: it was deleted in the event_code
*/
lv_res_t lv_obj_event_base(const lv_obj_class_t * class_p, lv_event_t * e);
/**
* Get the object originally targeted by the event. It's the same even if the event is bubbled.
* @param e pointer to the event descriptor
* @return the target of the event_code
*/
struct _lv_obj_t * lv_event_get_target(lv_event_t * e);
/**
* Get the current target of the event. It's the object which event handler being called.
* If the event is not bubbled it's the same as "normal" target.
* @param e pointer to the event descriptor
* @return pointer to the current target of the event_code
*/
struct _lv_obj_t * lv_event_get_current_target(lv_event_t * e);
/**
* Get the event code of an event
* @param e pointer to the event descriptor
* @return the event code. (E.g. `LV_EVENT_CLICKED`, `LV_EVENT_FOCUSED`, etc)
*/
lv_event_code_t lv_event_get_code(lv_event_t * e);
/**
* Get the parameter passed when the event was sent
* @param e pointer to the event descriptor
* @return pointer to the parameter
*/
void * lv_event_get_param(lv_event_t * e);
/**
* Get the user_data passed when the event was registered on the object
* @param e pointer to the event descriptor
* @return pointer to the user_data
*/
void * lv_event_get_user_data(lv_event_t * e);
/**
* Register a new, custom event ID.
* It can be used the same way as e.g. `LV_EVENT_CLICKED` to send custom events
* @return the new event id
* @example
* uint32_t LV_EVENT_MINE = 0;
* ...
* e = lv_event_register_id();
* ...
* lv_event_send(obj, LV_EVENT_MINE, &some_data);
*/
uint32_t lv_event_register_id(void);
/**
* Nested events can be called and one of them might belong to an object that is being deleted.
* Mark this object's `event_temp_data` deleted to know that its `lv_event_send` should return `LV_RES_INV`
* @param obj pointer to an object to mark as deleted
*/
void _lv_event_mark_deleted(struct _lv_obj_t * obj);
/**
* Add an event handler function for an object.
* Used by the user to react on event which happens with the object.
* An object can have multiple event handler. They will be called in the same order as they were added.
* @param obj pointer to an object
* @param filter and event code (e.g. `LV_EVENT_CLICKED`) on which the event should be called. `LV_EVENT_ALL` can be sued the receive all the events.
* @param event_cb the new event function
* @param user_data custom data data will be available in `event_cb`
* @return a pointer the event descriptor. Can be used in ::lv_obj_remove_event_dsc
*/
struct _lv_event_dsc_t * lv_obj_add_event_cb(struct _lv_obj_t * obj, lv_event_cb_t event_cb, lv_event_code_t filter,
void * user_data);
/**
* Remove an event handler function for an object.
* @param obj pointer to an object
* @param event_cb the event function to remove, or `NULL` to remove the the firstly added event callback
* @return true if any event handlers were removed
*/
bool lv_obj_remove_event_cb(struct _lv_obj_t * obj, lv_event_cb_t event_cb);
/**
* Remove an event handler function with a specific user_data from an object.
* @param obj pointer to an object
* @param event_cb the event function to remove, or `NULL` only `user_data` matters.
* @param event_user_data the user_data specified in ::lv_obj_add_event_cb
* @return true if any event handlers were removed
*/
bool lv_obj_remove_event_cb_with_user_data(struct _lv_obj_t * obj, lv_event_cb_t event_cb,
const void * event_user_data);
/**
* DEPRACTED because doesn't work if multiple event handlers are added to an object.
* Remove an event handler function for an object.
* @param obj pointer to an object
* @param event_dsc pointer to an event descriptor to remove (returned by ::lv_obj_add_event_cb)
* @return true if any event handlers were removed
*/
bool lv_obj_remove_event_dsc(struct _lv_obj_t * obj, struct _lv_event_dsc_t * event_dsc);
/**
* Get the input device passed as parameter to indev related events.
* @param e pointer to an event
* @return the indev that triggered the event or NULL if called on a not indev related event
*/
lv_indev_t * lv_event_get_indev(lv_event_t * e);
/**
* Get the part draw descriptor passed as parameter to `LV_EVENT_DRAW_PART_BEGIN/END`.
* @param e pointer to an event
* @return the part draw descriptor to hook the drawing or NULL if called on an unrelated event
*/
lv_obj_draw_part_dsc_t * lv_event_get_draw_part_dsc(lv_event_t * e);
/**
* Get the clip area passed as parameter to draw events events.
* Namely: `LV_EVENT_DRAW_MAIN/POST`, `LV_EVENT_DRAW_MAIN/POST_BEGIN`, `LV_EVENT_DRAW_MAIN/POST_END`
* @param e pointer to an event
* @return the clip area to use during drawing or NULL if called on an unrelated event
*/
const lv_area_t * lv_event_get_clip_area(lv_event_t * e);
/**
* Get the old area of the object before its size was changed. Can be used in `LV_EVENT_SIZE_CHANGED`
* @param e pointer to an event
* @return the old absolute area of the object or NULL if called on an unrelated event
*/
const lv_area_t * lv_event_get_old_size(lv_event_t * e);
/**
* Get the key passed as parameter to an event. Can be used in `LV_EVENT_KEY`
* @param e pointer to an event
* @return the triggering key or NULL if called on an unrelated event
*/
uint32_t lv_event_get_key(lv_event_t * e);
/**
* Get the animation descriptor of a scrolling. Can be used in `LV_EVENT_SCROLL_BEGIN`
* @param e pointer to an event
* @return the animation that will scroll the object. (can be modified as required)
*/
lv_anim_t * lv_event_get_scroll_anim(lv_event_t * e);
/**
* Set the new extra draw size. Can be used in `LV_EVENT_REFR_EXT_DRAW_SIZE`
* @param e pointer to an event
* @param size The new extra draw size
*/
void lv_event_set_ext_draw_size(lv_event_t * e, lv_coord_t size);
/**
* Get a pointer to an `lv_point_t` variable in which the self size should be saved (width in `point->x` and height `point->y`).
* Can be used in `LV_EVENT_GET_SELF_SIZE`
* @param e pointer to an event
* @return pointer to `lv_point_t` or NULL if called on an unrelated event
*/
lv_point_t * lv_event_get_self_size_info(lv_event_t * e);
/**
* Get a pointer to an `lv_hit_test_info_t` variable in which the hit test result should be saved. Can be used in `LV_EVENT_HIT_TEST`
* @param e pointer to an event
* @return pointer to `lv_hit_test_info_t` or NULL if called on an unrelated event
*/
lv_hit_test_info_t * lv_event_get_hit_test_info(lv_event_t * e);
/**
* Get a pointer to an area which should be examined whether the object fully covers it or not.
* Can be used in `LV_EVENT_HIT_TEST`
* @param e pointer to an event
* @return an area with absolute coordinates to check
*/
const lv_area_t * lv_event_get_cover_area(lv_event_t * e);
/**
* Set the result of cover checking. Can be used in `LV_EVENT_COVER_CHECK`
* @param e pointer to an event
* @param res an element of ::lv_cover_check_info_t
*/
void lv_event_set_cover_res(lv_event_t * e, lv_cover_res_t res);
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_EVENT_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_event.h | C | apache-2.0 | 14,543 |
/**
* @file lv_group.c
*
*/
/*********************
* INCLUDES
*********************/
#include <stddef.h>
#include "lv_group.h"
#include "../misc/lv_gc.h"
#include "../core/lv_obj.h"
#include "../core/lv_indev.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static void focus_next_core(lv_group_t * group, void * (*begin)(const lv_ll_t *),
void * (*move)(const lv_ll_t *, const void *));
static void lv_group_refocus(lv_group_t * g);
static lv_indev_t * get_indev(const lv_group_t * g);
/**********************
* STATIC VARIABLES
**********************/
static lv_group_t * default_group;
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
void _lv_group_init(void)
{
_lv_ll_init(&LV_GC_ROOT(_lv_group_ll), sizeof(lv_group_t));
}
lv_group_t * lv_group_create(void)
{
lv_group_t * group = _lv_ll_ins_head(&LV_GC_ROOT(_lv_group_ll));
LV_ASSERT_MALLOC(group);
if(group == NULL) return NULL;
_lv_ll_init(&group->obj_ll, sizeof(lv_obj_t *));
group->obj_focus = NULL;
group->frozen = 0;
group->focus_cb = NULL;
group->editing = 0;
group->refocus_policy = LV_GROUP_REFOCUS_POLICY_PREV;
group->wrap = 1;
#if LV_USE_USER_DATA
group->user_data = NULL;
#endif
return group;
}
void lv_group_del(lv_group_t * group)
{
/*Defocus the currently focused object*/
if(group->obj_focus != NULL) {
lv_event_send(*group->obj_focus, LV_EVENT_DEFOCUSED, get_indev(group));
lv_obj_invalidate(*group->obj_focus);
}
/*Remove the objects from the group*/
lv_obj_t ** obj;
_LV_LL_READ(&group->obj_ll, obj) {
if((*obj)->spec_attr)(*obj)->spec_attr->group_p = NULL;
}
_lv_ll_clear(&(group->obj_ll));
_lv_ll_remove(&LV_GC_ROOT(_lv_group_ll), group);
lv_mem_free(group);
}
void lv_group_set_default(lv_group_t * group)
{
default_group = group;
}
lv_group_t * lv_group_get_default(void)
{
return default_group;
}
void lv_group_add_obj(lv_group_t * group, lv_obj_t * obj)
{
if(group == NULL) return;
LV_LOG_TRACE("begin");
/*Do not add the object twice*/
lv_obj_t ** obj_i;
_LV_LL_READ(&group->obj_ll, obj_i) {
if((*obj_i) == obj) {
LV_LOG_INFO("the object is already added to this group");
return;
}
}
/*If the object is already in a group and focused then refocus it*/
lv_group_t * group_cur = lv_obj_get_group(obj);
if(group_cur) {
if(obj->spec_attr->group_p && *(obj->spec_attr->group_p->obj_focus) == obj) {
lv_group_refocus(group_cur);
LV_LOG_INFO("changing object's group");
}
}
if(obj->spec_attr == NULL) lv_obj_allocate_spec_attr(obj);
obj->spec_attr->group_p = group;
lv_obj_t ** next = _lv_ll_ins_tail(&group->obj_ll);
LV_ASSERT_MALLOC(next);
if(next == NULL) return;
*next = obj;
/*If the head and the tail is equal then there is only one object in the linked list.
*In this case automatically activate it*/
if(_lv_ll_get_head(&group->obj_ll) == next) {
lv_group_refocus(group);
}
LV_LOG_TRACE("finished");
}
void lv_group_swap_obj(lv_obj_t * obj1, lv_obj_t * obj2)
{
lv_group_t * g1 = lv_obj_get_group(obj1);
lv_group_t * g2 = lv_obj_get_group(obj2);
if(g1 != g2) return;
if(g1 == NULL) return;
/*Do not add the object twice*/
lv_obj_t ** obj_i;
_LV_LL_READ(&g1->obj_ll, obj_i) {
if((*obj_i) == obj1)(*obj_i) = obj2;
else if((*obj_i) == obj2)(*obj_i) = obj1;
}
if(*g1->obj_focus == obj1) lv_group_focus_obj(obj2);
else if(*g1->obj_focus == obj2) lv_group_focus_obj(obj1);
}
void lv_group_remove_obj(lv_obj_t * obj)
{
lv_group_t * g = lv_obj_get_group(obj);
if(g == NULL) return;
LV_LOG_TRACE("begin");
/*Focus on the next object*/
if(g->obj_focus && *g->obj_focus == obj) {
if(g->frozen) g->frozen = 0;
/*If this is the only object in the group then focus to nothing.*/
if(_lv_ll_get_head(&g->obj_ll) == g->obj_focus && _lv_ll_get_tail(&g->obj_ll) == g->obj_focus) {
lv_event_send(*g->obj_focus, LV_EVENT_DEFOCUSED, get_indev(g));
}
/*If there more objects in the group then focus to the next/prev object*/
else {
lv_group_refocus(g);
}
}
/*If the focuses object is still the same then it was the only object in the group but it will
*be deleted. Set the `obj_focus` to NULL to get back to the initial state of the group with
*zero objects*/
if(g->obj_focus && *g->obj_focus == obj) {
g->obj_focus = NULL;
}
/*Search the object and remove it from its group*/
lv_obj_t ** i;
_LV_LL_READ(&g->obj_ll, i) {
if(*i == obj) {
_lv_ll_remove(&g->obj_ll, i);
lv_mem_free(i);
if(obj->spec_attr) obj->spec_attr->group_p = NULL;
break;
}
}
LV_LOG_TRACE("finished");
}
void lv_group_remove_all_objs(lv_group_t * group)
{
/*Defocus the currently focused object*/
if(group->obj_focus != NULL) {
lv_event_send(*group->obj_focus, LV_EVENT_DEFOCUSED, get_indev(group));
lv_obj_invalidate(*group->obj_focus);
group->obj_focus = NULL;
}
/*Remove the objects from the group*/
lv_obj_t ** obj;
_LV_LL_READ(&group->obj_ll, obj) {
if((*obj)->spec_attr)(*obj)->spec_attr->group_p = NULL;
}
_lv_ll_clear(&(group->obj_ll));
}
void lv_group_focus_obj(lv_obj_t * obj)
{
if(obj == NULL) return;
lv_group_t * g = lv_obj_get_group(obj);
if(g == NULL) return;
if(g->frozen != 0) return;
/*On defocus edit mode must be leaved*/
lv_group_set_editing(g, false);
lv_obj_t ** i;
_LV_LL_READ(&g->obj_ll, i) {
if(*i == obj) {
if(g->obj_focus != NULL && obj != *g->obj_focus) { /*Do not defocus if the same object needs to be focused again*/
lv_res_t res = lv_event_send(*g->obj_focus, LV_EVENT_DEFOCUSED, get_indev(g));
if(res != LV_RES_OK) return;
lv_obj_invalidate(*g->obj_focus);
}
g->obj_focus = i;
if(g->obj_focus != NULL) {
if(g->focus_cb) g->focus_cb(g);
lv_res_t res = lv_event_send(*g->obj_focus, LV_EVENT_FOCUSED, get_indev(g));
if(res != LV_RES_OK) return;
lv_obj_invalidate(*g->obj_focus);
}
break;
}
}
}
void lv_group_focus_next(lv_group_t * group)
{
focus_next_core(group, _lv_ll_get_head, _lv_ll_get_next);
}
void lv_group_focus_prev(lv_group_t * group)
{
focus_next_core(group, _lv_ll_get_tail, _lv_ll_get_prev);
}
void lv_group_focus_freeze(lv_group_t * group, bool en)
{
if(en == false) group->frozen = 0;
else group->frozen = 1;
}
lv_res_t lv_group_send_data(lv_group_t * group, uint32_t c)
{
lv_obj_t * act = lv_group_get_focused(group);
if(act == NULL) return LV_RES_OK;
return lv_event_send(act, LV_EVENT_KEY, &c);
}
void lv_group_set_focus_cb(lv_group_t * group, lv_group_focus_cb_t focus_cb)
{
group->focus_cb = focus_cb;
}
void lv_group_set_editing(lv_group_t * group, bool edit)
{
if(group == NULL) return;
uint8_t en_val = edit ? 1 : 0;
if(en_val == group->editing) return; /*Do not set the same mode again*/
group->editing = en_val;
lv_obj_t * focused = lv_group_get_focused(group);
if(focused) {
lv_res_t res = lv_event_send(*group->obj_focus, LV_EVENT_FOCUSED, get_indev(group));
if(res != LV_RES_OK) return;
lv_obj_invalidate(focused);
}
}
void lv_group_set_refocus_policy(lv_group_t * group, lv_group_refocus_policy_t policy)
{
group->refocus_policy = policy & 0x01;
}
void lv_group_set_wrap(lv_group_t * group, bool en)
{
group->wrap = en ? 1 : 0;
}
lv_obj_t * lv_group_get_focused(const lv_group_t * group)
{
if(!group) return NULL;
if(group->obj_focus == NULL) return NULL;
return *group->obj_focus;
}
lv_group_focus_cb_t lv_group_get_focus_cb(const lv_group_t * group)
{
if(!group) return NULL;
return group->focus_cb;
}
bool lv_group_get_editing(const lv_group_t * group)
{
if(!group) return false;
return group->editing ? true : false;
}
bool lv_group_get_wrap(lv_group_t * group)
{
if(!group) return false;
return group->wrap ? true : false;
}
uint32_t lv_group_get_obj_count(lv_group_t * group)
{
return _lv_ll_get_len(&group->obj_ll);
}
/**********************
* STATIC FUNCTIONS
**********************/
static void lv_group_refocus(lv_group_t * g)
{
/*Refocus must temporarily allow wrapping to work correctly*/
uint8_t temp_wrap = g->wrap;
g->wrap = 1;
if(g->refocus_policy == LV_GROUP_REFOCUS_POLICY_NEXT)
lv_group_focus_next(g);
else if(g->refocus_policy == LV_GROUP_REFOCUS_POLICY_PREV)
lv_group_focus_prev(g);
/*Restore wrap property*/
g->wrap = temp_wrap;
}
static void focus_next_core(lv_group_t * group, void * (*begin)(const lv_ll_t *),
void * (*move)(const lv_ll_t *, const void *))
{
if(group->frozen) return;
lv_obj_t ** obj_next = group->obj_focus;
lv_obj_t ** obj_sentinel = NULL;
bool can_move = true;
bool can_begin = true;
for(;;) {
if(obj_next == NULL) {
if(group->wrap || obj_sentinel == NULL) {
if(!can_begin) return;
obj_next = begin(&group->obj_ll);
can_move = false;
can_begin = false;
}
else {
/*Currently focused object is the last/first in the group, keep it that way*/
return;
}
}
if(obj_sentinel == NULL) {
obj_sentinel = obj_next;
if(obj_sentinel == NULL) return; /*Group is empty*/
}
if(can_move) {
obj_next = move(&group->obj_ll, obj_next);
/*Give up if we walked the entire list and haven't found another visible object*/
if(obj_next == obj_sentinel) return;
}
can_move = true;
if(obj_next == NULL) continue;
if(lv_obj_get_state(*obj_next) & LV_STATE_DISABLED) continue;
/*Hidden objects don't receive focus.
*If any parent is hidden, the object is also hidden)*/
lv_obj_t * parent = *obj_next;
while(parent) {
if(lv_obj_has_flag(parent, LV_OBJ_FLAG_HIDDEN)) break;
parent = lv_obj_get_parent(parent);
}
if(parent && lv_obj_has_flag(parent, LV_OBJ_FLAG_HIDDEN)) continue;
/*If we got her a good candidate is found*/
break;
}
if(obj_next == group->obj_focus) return; /*There's only one visible object and it's already focused*/
if(group->obj_focus) {
lv_res_t res = lv_event_send(*group->obj_focus, LV_EVENT_DEFOCUSED, get_indev(group));
if(res != LV_RES_OK) return;
lv_obj_invalidate(*group->obj_focus);
}
group->obj_focus = obj_next;
lv_res_t res = lv_event_send(*group->obj_focus, LV_EVENT_FOCUSED, get_indev(group));
if(res != LV_RES_OK) return;
lv_obj_invalidate(*group->obj_focus);
if(group->focus_cb) group->focus_cb(group);
}
/**
* Find an indev preferably with KEYPAD or ENCOEDR type that uses the given group.
* In other words, find an indev, that is related to the given group.
* In the worst case simply return the latest indev
* @param g a group the find in the indevs
* @return the suggested indev
*/
static lv_indev_t * get_indev(const lv_group_t * g)
{
lv_indev_t * indev_encoder = NULL;
lv_indev_t * indev_group = NULL;
lv_indev_t * indev = lv_indev_get_next(NULL);
while(indev) {
lv_indev_type_t indev_type = lv_indev_get_type(indev);
if(indev->group == g) {
/*Prefer KEYPAD*/
if(indev_type == LV_INDEV_TYPE_KEYPAD) return indev;
if(indev_type == LV_INDEV_TYPE_ENCODER) indev_encoder = indev;
indev_group = indev;
}
indev = lv_indev_get_next(indev);
}
if(indev_encoder) return indev_encoder;
if(indev_group) return indev_group;
/*In lack of a better option use the first input device. (It can be NULL if there is no input device)*/
return lv_indev_get_next(NULL);
}
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_group.c | C | apache-2.0 | 12,699 |
/**
* @file lv_group.h
*
*/
#ifndef LV_GROUP_H
#define LV_GROUP_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "../lv_conf_internal.h"
#include <stdint.h>
#include <stdbool.h>
#include "../misc/lv_ll.h"
#include "../misc/lv_types.h"
/*********************
* DEFINES
*********************/
/*Predefined keys to control the focused object via lv_group_send(group, c)*/
enum {
LV_KEY_UP = 17, /*0x11*/
LV_KEY_DOWN = 18, /*0x12*/
LV_KEY_RIGHT = 19, /*0x13*/
LV_KEY_LEFT = 20, /*0x14*/
LV_KEY_ESC = 27, /*0x1B*/
LV_KEY_DEL = 127, /*0x7F*/
LV_KEY_BACKSPACE = 8, /*0x08*/
LV_KEY_ENTER = 10, /*0x0A, '\n'*/
LV_KEY_NEXT = 9, /*0x09, '\t'*/
LV_KEY_PREV = 11, /*0x0B, '*/
LV_KEY_HOME = 2, /*0x02, STX*/
LV_KEY_END = 3, /*0x03, ETX*/
};
typedef uint8_t lv_key_t;
/**********************
* TYPEDEFS
**********************/
struct _lv_obj_t;
struct _lv_group_t;
typedef void (*lv_group_focus_cb_t)(struct _lv_group_t *);
/**
* Groups can be used to logically hold objects so that they can be individually focused.
* They are NOT for laying out objects on a screen (try layouts for that).
*/
typedef struct _lv_group_t {
lv_ll_t obj_ll; /**< Linked list to store the objects in the group*/
struct _lv_obj_t ** obj_focus; /**< The object in focus*/
lv_group_focus_cb_t focus_cb; /**< A function to call when a new object is focused (optional)*/
#if LV_USE_USER_DATA
void * user_data;
#endif
uint8_t frozen : 1; /**< 1: can't focus to new object*/
uint8_t editing : 1; /**< 1: Edit mode, 0: Navigate mode*/
uint8_t refocus_policy : 1; /**< 1: Focus prev if focused on deletion. 0: Focus next if focused on
deletion.*/
uint8_t wrap : 1; /**< 1: Focus next/prev can wrap at end of list. 0: Focus next/prev stops at end
of list.*/
} lv_group_t;
typedef enum {
LV_GROUP_REFOCUS_POLICY_NEXT = 0,
LV_GROUP_REFOCUS_POLICY_PREV = 1
} lv_group_refocus_policy_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Init. the group module
* @remarks Internal function, do not call directly.
*/
void _lv_group_init(void);
/**
* Create a new object group
* @return pointer to the new object group
*/
lv_group_t * lv_group_create(void);
/**
* Delete a group object
* @param group pointer to a group
*/
void lv_group_del(lv_group_t * group);
/**
* Set a default group. New object are added to this group if it's enabled in their class with `add_to_def_group = true`
* @param group pointer to a group (can be `NULL`)
*/
void lv_group_set_default(lv_group_t * group);
/**
* Get the default group
* @return pointer to the default group
*/
lv_group_t * lv_group_get_default(void);
/**
* Add an object to a group
* @param group pointer to a group
* @param obj pointer to an object to add
*/
void lv_group_add_obj(lv_group_t * group, struct _lv_obj_t * obj);
/**
* Swap 2 object in a group. The object must be in the same group
* @param obj1 pointer to an object
* @param obj2 pointer to an other object
*/
void lv_group_swap_obj(struct _lv_obj_t * obj1, struct _lv_obj_t * obj2);
/**
* Remove an object from its group
* @param obj pointer to an object to remove
*/
void lv_group_remove_obj(struct _lv_obj_t * obj);
/**
* Remove all objects from a group
* @param group pointer to a group
*/
void lv_group_remove_all_objs(lv_group_t * group);
/**
* Focus on an object (defocus the current)
* @param obj pointer to an object to focus on
*/
void lv_group_focus_obj(struct _lv_obj_t * obj);
/**
* Focus the next object in a group (defocus the current)
* @param group pointer to a group
*/
void lv_group_focus_next(lv_group_t * group);
/**
* Focus the previous object in a group (defocus the current)
* @param group pointer to a group
*/
void lv_group_focus_prev(lv_group_t * group);
/**
* Do not let to change the focus from the current object
* @param group pointer to a group
* @param en true: freeze, false: release freezing (normal mode)
*/
void lv_group_focus_freeze(lv_group_t * group, bool en);
/**
* Send a control character to the focuses object of a group
* @param group pointer to a group
* @param c a character (use LV_KEY_.. to navigate)
* @return result of focused object in group.
*/
lv_res_t lv_group_send_data(lv_group_t * group, uint32_t c);
/**
* Set a function for a group which will be called when a new object is focused
* @param group pointer to a group
* @param focus_cb the call back function or NULL if unused
*/
void lv_group_set_focus_cb(lv_group_t * group, lv_group_focus_cb_t focus_cb);
/**
* Set whether the next or previous item in a group is focused if the currently focused obj is
* deleted.
* @param group pointer to a group
* @param policy new refocus policy enum
*/
void lv_group_set_refocus_policy(lv_group_t * group, lv_group_refocus_policy_t policy);
/**
* Manually set the current mode (edit or navigate).
* @param group pointer to group
* @param edit true: edit mode; false: navigate mode
*/
void lv_group_set_editing(lv_group_t * group, bool edit);
/**
* Set whether focus next/prev will allow wrapping from first->last or last->first object.
* @param group pointer to group
* @param en true: wrapping enabled; false: wrapping disabled
*/
void lv_group_set_wrap(lv_group_t * group, bool en);
/**
* Get the focused object or NULL if there isn't one
* @param group pointer to a group
* @return pointer to the focused object
*/
struct _lv_obj_t * lv_group_get_focused(const lv_group_t * group);
/**
* Get the focus callback function of a group
* @param group pointer to a group
* @return the call back function or NULL if not set
*/
lv_group_focus_cb_t lv_group_get_focus_cb(const lv_group_t * group);
/**
* Get the current mode (edit or navigate).
* @param group pointer to group
* @return true: edit mode; false: navigate mode
*/
bool lv_group_get_editing(const lv_group_t * group);
/**
* Get whether focus next/prev will allow wrapping from first->last or last->first object.
* @param group pointer to group
* @param en true: wrapping enabled; false: wrapping disabled
*/
bool lv_group_get_wrap(lv_group_t * group);
/**
* Get the number of object in the group
* @param group pointer to a group
* @return number of objects in the group
*/
uint32_t lv_group_get_obj_count(lv_group_t * group);
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_GROUP_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_group.h | C | apache-2.0 | 6,980 |
/**
* @file lv_indev.c
*
*/
/*********************
* INCLUDES
********************/
#include "lv_indev.h"
#include "lv_disp.h"
#include "lv_obj.h"
#include "lv_indev_scroll.h"
#include "lv_group.h"
#include "lv_refr.h"
#include "../hal/lv_hal_tick.h"
#include "../misc/lv_timer.h"
#include "../misc/lv_math.h"
/*********************
* DEFINES
*********************/
#if LV_INDEV_DEF_SCROLL_THROW <= 0
#warning "LV_INDEV_DRAG_THROW must be greater than 0"
#endif
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static void indev_pointer_proc(lv_indev_t * i, lv_indev_data_t * data);
static void indev_keypad_proc(lv_indev_t * i, lv_indev_data_t * data);
static void indev_encoder_proc(lv_indev_t * i, lv_indev_data_t * data);
static void indev_button_proc(lv_indev_t * i, lv_indev_data_t * data);
static void indev_proc_press(_lv_indev_proc_t * proc);
static void indev_proc_release(_lv_indev_proc_t * proc);
static void indev_proc_reset_query_handler(lv_indev_t * indev);
static void indev_click_focus(_lv_indev_proc_t * proc);
static void indev_gesture(_lv_indev_proc_t * proc);
static bool indev_reset_check(_lv_indev_proc_t * proc);
/**********************
* STATIC VARIABLES
**********************/
static lv_indev_t * indev_act;
static lv_obj_t * indev_obj_act = NULL;
/**********************
* MACROS
**********************/
#if LV_LOG_TRACE_INDEV
#define INDEV_TRACE(...) LV_LOG_TRACE(__VA_ARGS__)
#else
#define INDEV_TRACE(...)
#endif
/**********************
* GLOBAL FUNCTIONS
**********************/
void lv_indev_read_timer_cb(lv_timer_t * timer)
{
INDEV_TRACE("begin");
lv_indev_data_t data;
indev_act = timer->user_data;
/*Read and process all indevs*/
if(indev_act->driver->disp == NULL) return; /*Not assigned to any displays*/
/*Handle reset query before processing the point*/
indev_proc_reset_query_handler(indev_act);
if(indev_act->proc.disabled) return;
bool continue_reading;
do {
/*Read the data*/
_lv_indev_read(indev_act, &data);
continue_reading = data.continue_reading;
/*The active object might deleted even in the read function*/
indev_proc_reset_query_handler(indev_act);
indev_obj_act = NULL;
indev_act->proc.state = data.state;
/*Save the last activity time*/
if(indev_act->proc.state == LV_INDEV_STATE_PRESSED) {
indev_act->driver->disp->last_activity_time = lv_tick_get();
}
else if(indev_act->driver->type == LV_INDEV_TYPE_ENCODER && data.enc_diff) {
indev_act->driver->disp->last_activity_time = lv_tick_get();
}
if(indev_act->driver->type == LV_INDEV_TYPE_POINTER) {
indev_pointer_proc(indev_act, &data);
}
else if(indev_act->driver->type == LV_INDEV_TYPE_KEYPAD) {
indev_keypad_proc(indev_act, &data);
}
else if(indev_act->driver->type == LV_INDEV_TYPE_ENCODER) {
indev_encoder_proc(indev_act, &data);
}
else if(indev_act->driver->type == LV_INDEV_TYPE_BUTTON) {
indev_button_proc(indev_act, &data);
}
/*Handle reset query if it happened in during processing*/
indev_proc_reset_query_handler(indev_act);
} while(continue_reading);
/*End of indev processing, so no act indev*/
indev_act = NULL;
indev_obj_act = NULL;
INDEV_TRACE("finished");
}
void lv_indev_enable(lv_indev_t * indev, bool en)
{
if(!indev) return;
indev->proc.disabled = en ? 0 : 1;
}
lv_indev_t * lv_indev_get_act(void)
{
return indev_act;
}
lv_indev_type_t lv_indev_get_type(const lv_indev_t * indev)
{
if(indev == NULL) return LV_INDEV_TYPE_NONE;
return indev->driver->type;
}
void lv_indev_reset(lv_indev_t * indev, lv_obj_t * obj)
{
if(indev) {
indev->proc.reset_query = 1;
if(indev_act == indev) indev_obj_act = NULL;
if(indev->driver->type == LV_INDEV_TYPE_POINTER || indev->driver->type == LV_INDEV_TYPE_KEYPAD) {
if(obj == NULL || indev->proc.types.pointer.last_pressed == obj) {
indev->proc.types.pointer.last_pressed = NULL;
}
if(obj == NULL || indev->proc.types.pointer.act_obj == obj) {
indev->proc.types.pointer.act_obj = NULL;
}
if(obj == NULL || indev->proc.types.pointer.last_obj == obj) {
indev->proc.types.pointer.last_obj = NULL;
}
}
}
else {
lv_indev_t * i = lv_indev_get_next(NULL);
while(i) {
i->proc.reset_query = 1;
if(i->driver->type == LV_INDEV_TYPE_POINTER || i->driver->type == LV_INDEV_TYPE_KEYPAD) {
if(obj == NULL || i->proc.types.pointer.last_pressed == obj) {
i->proc.types.pointer.last_pressed = NULL;
}
if(obj == NULL || i->proc.types.pointer.act_obj == obj) {
i->proc.types.pointer.act_obj = NULL;
}
if(obj == NULL || i->proc.types.pointer.last_obj == obj) {
i->proc.types.pointer.last_obj = NULL;
}
}
i = lv_indev_get_next(i);
}
indev_obj_act = NULL;
}
}
void lv_indev_reset_long_press(lv_indev_t * indev)
{
indev->proc.long_pr_sent = 0;
indev->proc.longpr_rep_timestamp = lv_tick_get();
indev->proc.pr_timestamp = lv_tick_get();
}
void lv_indev_set_cursor(lv_indev_t * indev, lv_obj_t * cur_obj)
{
if(indev->driver->type != LV_INDEV_TYPE_POINTER) return;
indev->cursor = cur_obj;
lv_obj_set_parent(indev->cursor, lv_disp_get_layer_sys(indev->driver->disp));
lv_obj_set_pos(indev->cursor, indev->proc.types.pointer.act_point.x, indev->proc.types.pointer.act_point.y);
lv_obj_clear_flag(indev->cursor, LV_OBJ_FLAG_CLICKABLE);
lv_obj_add_flag(indev->cursor, LV_OBJ_FLAG_IGNORE_LAYOUT | LV_OBJ_FLAG_FLOATING);
}
void lv_indev_set_group(lv_indev_t * indev, lv_group_t * group)
{
if(indev->driver->type == LV_INDEV_TYPE_KEYPAD || indev->driver->type == LV_INDEV_TYPE_ENCODER) {
indev->group = group;
}
}
void lv_indev_set_button_points(lv_indev_t * indev, const lv_point_t points[])
{
if(indev->driver->type == LV_INDEV_TYPE_BUTTON) {
indev->btn_points = points;
}
}
void lv_indev_get_point(const lv_indev_t * indev, lv_point_t * point)
{
if(indev == NULL) {
point->x = 0;
point->y = 0;
return;
}
if(indev->driver->type != LV_INDEV_TYPE_POINTER && indev->driver->type != LV_INDEV_TYPE_BUTTON) {
point->x = -1;
point->y = -1;
}
else {
point->x = indev->proc.types.pointer.act_point.x;
point->y = indev->proc.types.pointer.act_point.y;
}
}
lv_dir_t lv_indev_get_gesture_dir(const lv_indev_t * indev)
{
return indev->proc.types.pointer.gesture_dir;
}
uint32_t lv_indev_get_key(const lv_indev_t * indev)
{
if(indev->driver->type != LV_INDEV_TYPE_KEYPAD)
return 0;
else
return indev->proc.types.keypad.last_key;
}
lv_dir_t lv_indev_get_scroll_dir(const lv_indev_t * indev)
{
if(indev == NULL) return false;
if(indev->driver->type != LV_INDEV_TYPE_POINTER && indev->driver->type != LV_INDEV_TYPE_BUTTON) return false;
return indev->proc.types.pointer.scroll_dir;
}
lv_obj_t * lv_indev_get_scroll_obj(const lv_indev_t * indev)
{
if(indev == NULL) return NULL;
if(indev->driver->type != LV_INDEV_TYPE_POINTER && indev->driver->type != LV_INDEV_TYPE_BUTTON) return NULL;
return indev->proc.types.pointer.scroll_obj;
}
void lv_indev_get_vect(const lv_indev_t * indev, lv_point_t * point)
{
point->x = 0;
point->y = 0;
if(indev == NULL) return;
if(indev->driver->type == LV_INDEV_TYPE_POINTER || indev->driver->type == LV_INDEV_TYPE_BUTTON) {
point->x = indev->proc.types.pointer.vect.x;
point->y = indev->proc.types.pointer.vect.y;
}
}
void lv_indev_wait_release(lv_indev_t * indev)
{
if(indev == NULL)return;
indev->proc.wait_until_release = 1;
}
lv_obj_t * lv_indev_get_obj_act(void)
{
return indev_obj_act;
}
lv_timer_t * lv_indev_get_read_timer(lv_disp_t * indev)
{
if(!indev) {
LV_LOG_WARN("lv_indev_get_read_timer: indev was NULL");
return NULL;
}
return indev->refr_timer;
}
lv_obj_t * lv_indev_search_obj(lv_obj_t * obj, lv_point_t * point)
{
lv_obj_t * found_p = NULL;
/*If the point is on this object check its children too*/
if(lv_obj_hit_test(obj, point)) {
int32_t i;
uint32_t child_cnt = lv_obj_get_child_cnt(obj);
for(i = child_cnt - 1; i >= 0; i--) {
lv_obj_t * child = obj->spec_attr->children[i];
found_p = lv_indev_search_obj(child, point);
/*If a child was found then break*/
if(found_p != NULL) break;
}
/*If then the children was not ok, and this obj is clickable
* and it or its parent is not hidden then save this object*/
if(found_p == NULL && lv_obj_has_flag(obj, LV_OBJ_FLAG_CLICKABLE)) {
lv_obj_t * hidden_i = obj;
while(hidden_i != NULL) {
if(lv_obj_has_flag(hidden_i, LV_OBJ_FLAG_HIDDEN) == true) break;
hidden_i = lv_obj_get_parent(hidden_i);
}
/*No parent found with hidden == true*/
if(hidden_i == NULL && (lv_obj_get_state(obj) & LV_STATE_DISABLED) == false) found_p = obj;
}
}
return found_p;
}
/**********************
* STATIC FUNCTIONS
**********************/
/**
* Process a new point from LV_INDEV_TYPE_POINTER input device
* @param i pointer to an input device
* @param data pointer to the data read from the input device
*/
static void indev_pointer_proc(lv_indev_t * i, lv_indev_data_t * data)
{
lv_disp_t * disp = i->driver->disp;
/*Save the raw points so they can be used again in _lv_indev_read*/
i->proc.types.pointer.last_raw_point.x = data->point.x;
i->proc.types.pointer.last_raw_point.y = data->point.y;
if(disp->driver->rotated == LV_DISP_ROT_180 || disp->driver->rotated == LV_DISP_ROT_270) {
data->point.x = disp->driver->hor_res - data->point.x - 1;
data->point.y = disp->driver->ver_res - data->point.y - 1;
}
if(disp->driver->rotated == LV_DISP_ROT_90 || disp->driver->rotated == LV_DISP_ROT_270) {
lv_coord_t tmp = data->point.y;
data->point.y = data->point.x;
data->point.x = disp->driver->ver_res - tmp - 1;
}
/*Simple sanity check*/
if(data->point.x < 0) LV_LOG_WARN("X is %d which is smaller than zero", data->point.x);
if(data->point.x >= lv_disp_get_hor_res(i->driver->disp)) LV_LOG_WARN("X is %d which is greater than hor. res",
data->point.x);
if(data->point.y < 0) LV_LOG_WARN("Y is %d which is smaller than zero", data->point.y);
if(data->point.y >= lv_disp_get_ver_res(i->driver->disp)) LV_LOG_WARN("Y is %d which is greater than hor. res",
data->point.y);
/*Move the cursor if set and moved*/
if(i->cursor != NULL &&
(i->proc.types.pointer.last_point.x != data->point.x || i->proc.types.pointer.last_point.y != data->point.y)) {
lv_obj_set_pos(i->cursor, data->point.x, data->point.y);
}
i->proc.types.pointer.act_point.x = data->point.x;
i->proc.types.pointer.act_point.y = data->point.y;
if(i->proc.state == LV_INDEV_STATE_PRESSED) {
indev_proc_press(&i->proc);
}
else {
indev_proc_release(&i->proc);
}
i->proc.types.pointer.last_point.x = i->proc.types.pointer.act_point.x;
i->proc.types.pointer.last_point.y = i->proc.types.pointer.act_point.y;
}
/**
* Process a new point from LV_INDEV_TYPE_KEYPAD input device
* @param i pointer to an input device
* @param data pointer to the data read from the input device
*/
static void indev_keypad_proc(lv_indev_t * i, lv_indev_data_t * data)
{
if(data->state == LV_INDEV_STATE_PRESSED && i->proc.wait_until_release) return;
if(i->proc.wait_until_release) {
i->proc.wait_until_release = 0;
i->proc.pr_timestamp = 0;
i->proc.long_pr_sent = 0;
i->proc.types.keypad.last_state = LV_INDEV_STATE_RELEASED; /*To skip the processing of release*/
}
lv_group_t * g = i->group;
if(g == NULL) return;
indev_obj_act = lv_group_get_focused(g);
if(indev_obj_act == NULL) return;
/*Save the last key to compare it with the current latter on RELEASE*/
uint32_t prev_key = i->proc.types.keypad.last_key;
/*Save the last key.
*It must be done here else `lv_indev_get_key` will return the last key in events*/
i->proc.types.keypad.last_key = data->key;
/*Save the previous state so we can detect state changes below and also set the last state now
*so if any event handler on the way returns `LV_RES_INV` the last state is remembered
*for the next time*/
uint32_t prev_state = i->proc.types.keypad.last_state;
i->proc.types.keypad.last_state = data->state;
/*Key press happened*/
if(data->state == LV_INDEV_STATE_PRESSED && prev_state == LV_INDEV_STATE_RELEASED) {
LV_LOG_INFO("%d key is pressed", data->key);
i->proc.pr_timestamp = lv_tick_get();
/*Simulate a press on the object if ENTER was pressed*/
if(data->key == LV_KEY_ENTER) {
/*Send the ENTER as a normal KEY*/
lv_group_send_data(g, LV_KEY_ENTER);
lv_event_send(indev_obj_act, LV_EVENT_PRESSED, indev_act);
if(indev_reset_check(&i->proc)) return;
}
else if(data->key == LV_KEY_ESC) {
/*Send the ESC as a normal KEY*/
lv_group_send_data(g, LV_KEY_ESC);
lv_event_send(indev_obj_act, LV_EVENT_CANCEL, indev_act);
if(indev_reset_check(&i->proc)) return;
}
/*Move the focus on NEXT*/
else if(data->key == LV_KEY_NEXT) {
lv_group_set_editing(g, false); /*Editing is not used by KEYPAD is be sure it is disabled*/
lv_group_focus_next(g);
if(indev_reset_check(&i->proc)) return;
}
/*Move the focus on PREV*/
else if(data->key == LV_KEY_PREV) {
lv_group_set_editing(g, false); /*Editing is not used by KEYPAD is be sure it is disabled*/
lv_group_focus_prev(g);
if(indev_reset_check(&i->proc)) return;
}
/*Just send other keys to the object (e.g. 'A' or `LV_GROUP_KEY_RIGHT`)*/
else {
lv_group_send_data(g, data->key);
}
}
/*Pressing*/
else if(data->state == LV_INDEV_STATE_PRESSED && prev_state == LV_INDEV_STATE_PRESSED) {
if(data->key == LV_KEY_ENTER) {
lv_event_send(indev_obj_act, LV_EVENT_PRESSING, indev_act);
if(indev_reset_check(&i->proc)) return;
}
/*Long press time has elapsed?*/
if(i->proc.long_pr_sent == 0 && lv_tick_elaps(i->proc.pr_timestamp) > i->driver->long_press_time) {
i->proc.long_pr_sent = 1;
if(data->key == LV_KEY_ENTER) {
i->proc.longpr_rep_timestamp = lv_tick_get();
lv_event_send(indev_obj_act, LV_EVENT_LONG_PRESSED, indev_act);
if(indev_reset_check(&i->proc)) return;
}
}
/*Long press repeated time has elapsed?*/
else if(i->proc.long_pr_sent != 0 &&
lv_tick_elaps(i->proc.longpr_rep_timestamp) > i->driver->long_press_repeat_time) {
i->proc.longpr_rep_timestamp = lv_tick_get();
/*Send LONG_PRESS_REP on ENTER*/
if(data->key == LV_KEY_ENTER) {
lv_event_send(indev_obj_act, LV_EVENT_LONG_PRESSED_REPEAT, indev_act);
if(indev_reset_check(&i->proc)) return;
}
/*Move the focus on NEXT again*/
else if(data->key == LV_KEY_NEXT) {
lv_group_set_editing(g, false); /*Editing is not used by KEYPAD is be sure it is disabled*/
lv_group_focus_next(g);
if(indev_reset_check(&i->proc)) return;
}
/*Move the focus on PREV again*/
else if(data->key == LV_KEY_PREV) {
lv_group_set_editing(g, false); /*Editing is not used by KEYPAD is be sure it is disabled*/
lv_group_focus_prev(g);
if(indev_reset_check(&i->proc)) return;
}
/*Just send other keys again to the object (e.g. 'A' or `LV_GROUP_KEY_RIGHT)*/
else {
lv_group_send_data(g, data->key);
if(indev_reset_check(&i->proc)) return;
}
}
}
/*Release happened*/
else if(data->state == LV_INDEV_STATE_RELEASED && prev_state == LV_INDEV_STATE_PRESSED) {
LV_LOG_INFO("%d key is released", data->key);
/*The user might clear the key when it was released. Always release the pressed key*/
data->key = prev_key;
if(data->key == LV_KEY_ENTER) {
lv_event_send(indev_obj_act, LV_EVENT_RELEASED, indev_act);
if(indev_reset_check(&i->proc)) return;
if(i->proc.long_pr_sent == 0) {
lv_event_send(indev_obj_act, LV_EVENT_SHORT_CLICKED, indev_act);
if(indev_reset_check(&i->proc)) return;
}
lv_event_send(indev_obj_act, LV_EVENT_CLICKED, indev_act);
if(indev_reset_check(&i->proc)) return;
}
i->proc.pr_timestamp = 0;
i->proc.long_pr_sent = 0;
}
indev_obj_act = NULL;
}
/**
* Process a new point from LV_INDEV_TYPE_ENCODER input device
* @param i pointer to an input device
* @param data pointer to the data read from the input device
*/
static void indev_encoder_proc(lv_indev_t * i, lv_indev_data_t * data)
{
if(data->state == LV_INDEV_STATE_PRESSED && i->proc.wait_until_release) return;
if(i->proc.wait_until_release) {
i->proc.wait_until_release = 0;
i->proc.pr_timestamp = 0;
i->proc.long_pr_sent = 0;
i->proc.types.keypad.last_state = LV_INDEV_STATE_RELEASED; /*To skip the processing of release*/
}
/*Save the last keys before anything else.
*They need to be already saved if the function returns for any reason*/
lv_indev_state_t last_state = i->proc.types.keypad.last_state;
i->proc.types.keypad.last_state = data->state;
i->proc.types.keypad.last_key = data->key;
lv_group_t * g = i->group;
if(g == NULL) return;
indev_obj_act = lv_group_get_focused(g);
if(indev_obj_act == NULL) return;
/*Process the steps they are valid only with released button*/
if(data->state != LV_INDEV_STATE_RELEASED) {
data->enc_diff = 0;
}
/*Refresh the focused object. It might change due to lv_group_focus_prev/next*/
indev_obj_act = lv_group_get_focused(g);
if(indev_obj_act == NULL) return;
/*Button press happened*/
if(data->state == LV_INDEV_STATE_PRESSED && last_state == LV_INDEV_STATE_RELEASED) {
LV_LOG_INFO("pressed");
i->proc.pr_timestamp = lv_tick_get();
if(data->key == LV_KEY_ENTER) {
bool editable_or_scrollable = lv_obj_is_editable(indev_obj_act) ||
lv_obj_has_flag(indev_obj_act, LV_OBJ_FLAG_SCROLLABLE);
if(lv_group_get_editing(g) == true || editable_or_scrollable == false) {
lv_event_send(indev_obj_act, LV_EVENT_PRESSED, indev_act);
if(indev_reset_check(&i->proc)) return;
}
}
else if(data->key == LV_KEY_LEFT) {
/*emulate encoder left*/
data->enc_diff--;
}
else if(data->key == LV_KEY_RIGHT) {
/*emulate encoder right*/
data->enc_diff++;
}
else if(data->key == LV_KEY_ESC) {
/*Send the ESC as a normal KEY*/
lv_group_send_data(g, LV_KEY_ESC);
lv_event_send(indev_obj_act, LV_EVENT_CANCEL, indev_act);
if(indev_reset_check(&i->proc)) return;
}
/*Just send other keys to the object (e.g. 'A' or `LV_GROUP_KEY_RIGHT`)*/
else {
lv_group_send_data(g, data->key);
}
}
/*Pressing*/
else if(data->state == LV_INDEV_STATE_PRESSED && last_state == LV_INDEV_STATE_PRESSED) {
/*Long press*/
if(i->proc.long_pr_sent == 0 && lv_tick_elaps(i->proc.pr_timestamp) > i->driver->long_press_time) {
i->proc.long_pr_sent = 1;
i->proc.longpr_rep_timestamp = lv_tick_get();
if(data->key == LV_KEY_ENTER) {
bool editable_or_scrollable = lv_obj_is_editable(indev_obj_act) ||
lv_obj_has_flag(indev_obj_act, LV_OBJ_FLAG_SCROLLABLE);
/*On enter long press toggle edit mode.*/
if(editable_or_scrollable) {
/*Don't leave edit mode if there is only one object (nowhere to navigate)*/
if(lv_group_get_obj_count(g) > 1) {
LV_LOG_INFO("toggling edit mode");
lv_group_set_editing(g, lv_group_get_editing(g) ? false : true); /*Toggle edit mode on long press*/
lv_obj_clear_state(indev_obj_act, LV_STATE_PRESSED); /*Remove the pressed state manually*/
}
}
/*If not editable then just send a long press Call the ancestor's event handler*/
else {
lv_event_send(indev_obj_act, LV_EVENT_LONG_PRESSED, indev_act);
if(indev_reset_check(&i->proc)) return;
}
}
i->proc.long_pr_sent = 1;
}
/*Long press repeated time has elapsed?*/
else if(i->proc.long_pr_sent != 0 && lv_tick_elaps(i->proc.longpr_rep_timestamp) > i->driver->long_press_repeat_time) {
i->proc.longpr_rep_timestamp = lv_tick_get();
if(data->key == LV_KEY_ENTER) {
lv_event_send(indev_obj_act, LV_EVENT_LONG_PRESSED_REPEAT, indev_act);
if(indev_reset_check(&i->proc)) return;
}
else if(data->key == LV_KEY_LEFT) {
/*emulate encoder left*/
data->enc_diff--;
}
else if(data->key == LV_KEY_RIGHT) {
/*emulate encoder right*/
data->enc_diff++;
}
else {
lv_group_send_data(g, data->key);
if(indev_reset_check(&i->proc)) return;
}
}
}
/*Release happened*/
else if(data->state == LV_INDEV_STATE_RELEASED && last_state == LV_INDEV_STATE_PRESSED) {
LV_LOG_INFO("released");
if(data->key == LV_KEY_ENTER) {
bool editable_or_scrollable = lv_obj_is_editable(indev_obj_act) ||
lv_obj_has_flag(indev_obj_act, LV_OBJ_FLAG_SCROLLABLE);
/*The button was released on a non-editable object. Just send enter*/
if(editable_or_scrollable == false) {
lv_event_send(indev_obj_act, LV_EVENT_RELEASED, indev_act);
if(indev_reset_check(&i->proc)) return;
if(i->proc.long_pr_sent == 0) lv_event_send(indev_obj_act, LV_EVENT_SHORT_CLICKED, indev_act);
if(indev_reset_check(&i->proc)) return;
lv_event_send(indev_obj_act, LV_EVENT_CLICKED, indev_act);
if(indev_reset_check(&i->proc)) return;
}
/*An object is being edited and the button is released.*/
else if(lv_group_get_editing(g)) {
/*Ignore long pressed enter release because it comes from mode switch*/
if(!i->proc.long_pr_sent || lv_group_get_obj_count(g) <= 1) {
lv_event_send(indev_obj_act, LV_EVENT_RELEASED, indev_act);
if(indev_reset_check(&i->proc)) return;
lv_event_send(indev_obj_act, LV_EVENT_SHORT_CLICKED, indev_act);
if(indev_reset_check(&i->proc)) return;
lv_event_send(indev_obj_act, LV_EVENT_CLICKED, indev_act);
if(indev_reset_check(&i->proc)) return;
lv_group_send_data(g, LV_KEY_ENTER);
}
else {
lv_obj_clear_state(indev_obj_act, LV_STATE_PRESSED); /*Remove the pressed state manually*/
}
}
/*If the focused object is editable and now in navigate mode then on enter switch edit
mode*/
else if(!i->proc.long_pr_sent) {
LV_LOG_INFO("entering edit mode");
lv_group_set_editing(g, true); /*Set edit mode*/
}
}
i->proc.pr_timestamp = 0;
i->proc.long_pr_sent = 0;
}
indev_obj_act = NULL;
/*if encoder steps or simulated steps via left/right keys*/
if(data->enc_diff != 0) {
/*In edit mode send LEFT/RIGHT keys*/
if(lv_group_get_editing(g)) {
LV_LOG_INFO("rotated by %+d (edit)", data->enc_diff);
int32_t s;
if(data->enc_diff < 0) {
for(s = 0; s < -data->enc_diff; s++) lv_group_send_data(g, LV_KEY_LEFT);
}
else if(data->enc_diff > 0) {
for(s = 0; s < data->enc_diff; s++) lv_group_send_data(g, LV_KEY_RIGHT);
}
}
/*In navigate mode focus on the next/prev objects*/
else {
LV_LOG_INFO("rotated by %+d (nav)", data->enc_diff);
int32_t s;
if(data->enc_diff < 0) {
for(s = 0; s < -data->enc_diff; s++) lv_group_focus_prev(g);
}
else if(data->enc_diff > 0) {
for(s = 0; s < data->enc_diff; s++) lv_group_focus_next(g);
}
}
}
}
/**
* Process new points from a input device. indev->state.pressed has to be set
* @param indev pointer to an input device state
* @param x x coordinate of the next point
* @param y y coordinate of the next point
*/
static void indev_button_proc(lv_indev_t * i, lv_indev_data_t * data)
{
/*Die gracefully if i->btn_points is NULL*/
if(i->btn_points == NULL) {
LV_LOG_WARN("btn_points is NULL");
return;
}
lv_coord_t x = i->btn_points[data->btn_id].x;
lv_coord_t y = i->btn_points[data->btn_id].y;
static lv_indev_state_t prev_state = LV_INDEV_STATE_RELEASED;
if(prev_state != data->state) {
if(data->state == LV_INDEV_STATE_PRESSED) {
LV_LOG_INFO("button %d is pressed (x:%d y:%d)", data->btn_id, x, y);
}
else {
LV_LOG_INFO("button %d is released (x:%d y:%d)", data->btn_id, x, y);
}
}
/*If a new point comes always make a release*/
if(data->state == LV_INDEV_STATE_PRESSED) {
if(i->proc.types.pointer.last_point.x != x ||
i->proc.types.pointer.last_point.y != y) {
indev_proc_release(&i->proc);
}
}
if(indev_reset_check(&i->proc)) return;
/*Save the new points*/
i->proc.types.pointer.act_point.x = x;
i->proc.types.pointer.act_point.y = y;
if(data->state == LV_INDEV_STATE_PRESSED) indev_proc_press(&i->proc);
else indev_proc_release(&i->proc);
if(indev_reset_check(&i->proc)) return;
i->proc.types.pointer.last_point.x = i->proc.types.pointer.act_point.x;
i->proc.types.pointer.last_point.y = i->proc.types.pointer.act_point.y;
}
/**
* Process the pressed state of LV_INDEV_TYPE_POINTER input devices
* @param indev pointer to an input device 'proc'
* @return LV_RES_OK: no indev reset required; LV_RES_INV: indev reset is required
*/
static void indev_proc_press(_lv_indev_proc_t * proc)
{
LV_LOG_INFO("pressed at x:%d y:%d", proc->types.pointer.act_point.x, proc->types.pointer.act_point.y);
indev_obj_act = proc->types.pointer.act_obj;
if(proc->wait_until_release != 0) return;
lv_disp_t * disp = indev_act->driver->disp;
bool new_obj_searched = false;
/*If there is no last object then search*/
if(indev_obj_act == NULL) {
indev_obj_act = lv_indev_search_obj(lv_disp_get_layer_sys(disp), &proc->types.pointer.act_point);
if(indev_obj_act == NULL) indev_obj_act = lv_indev_search_obj(lv_disp_get_layer_top(disp),
&proc->types.pointer.act_point);
if(indev_obj_act == NULL) indev_obj_act = lv_indev_search_obj(lv_disp_get_scr_act(disp),
&proc->types.pointer.act_point);
new_obj_searched = true;
}
/*If there is last object but it is not scrolled and not protected also search*/
else if(proc->types.pointer.scroll_obj == NULL &&
lv_obj_has_flag(indev_obj_act, LV_OBJ_FLAG_PRESS_LOCK) == false) {
indev_obj_act = lv_indev_search_obj(lv_disp_get_layer_sys(disp), &proc->types.pointer.act_point);
if(indev_obj_act == NULL) indev_obj_act = lv_indev_search_obj(lv_disp_get_layer_top(disp),
&proc->types.pointer.act_point);
if(indev_obj_act == NULL) indev_obj_act = lv_indev_search_obj(lv_disp_get_scr_act(disp),
&proc->types.pointer.act_point);
new_obj_searched = true;
}
/*The last object might have scroll throw. Stop it manually*/
if(new_obj_searched && proc->types.pointer.last_obj) {
proc->types.pointer.scroll_throw_vect.x = 0;
proc->types.pointer.scroll_throw_vect.y = 0;
_lv_indev_scroll_throw_handler(proc);
if(indev_reset_check(proc)) return;
}
/*If a new object was found reset some variables and send a pressed Call the ancestor's event handler*/
if(indev_obj_act != proc->types.pointer.act_obj) {
proc->types.pointer.last_point.x = proc->types.pointer.act_point.x;
proc->types.pointer.last_point.y = proc->types.pointer.act_point.y;
/*If a new object found the previous was lost, so send a Call the ancestor's event handler*/
if(proc->types.pointer.act_obj != NULL) {
/*Save the obj because in special cases `act_obj` can change in the Call the ancestor's event handler function*/
lv_obj_t * last_obj = proc->types.pointer.act_obj;
lv_event_send(last_obj, LV_EVENT_PRESS_LOST, indev_act);
if(indev_reset_check(proc)) return;
}
proc->types.pointer.act_obj = indev_obj_act; /*Save the pressed object*/
proc->types.pointer.last_obj = indev_obj_act;
if(indev_obj_act != NULL) {
/*Save the time when the obj pressed to count long press time.*/
proc->pr_timestamp = lv_tick_get();
proc->long_pr_sent = 0;
proc->types.pointer.scroll_sum.x = 0;
proc->types.pointer.scroll_sum.y = 0;
proc->types.pointer.scroll_dir = LV_DIR_NONE;
proc->types.pointer.gesture_dir = LV_DIR_NONE;
proc->types.pointer.gesture_sent = 0;
proc->types.pointer.gesture_sum.x = 0;
proc->types.pointer.gesture_sum.y = 0;
proc->types.pointer.vect.x = 0;
proc->types.pointer.vect.y = 0;
/*Call the ancestor's event handler about the press*/
lv_event_send(indev_obj_act, LV_EVENT_PRESSED, indev_act);
if(indev_reset_check(proc)) return;
if(indev_act->proc.wait_until_release) return;
/*Handle focus*/
indev_click_focus(&indev_act->proc);
if(indev_reset_check(proc)) return;
}
}
/*Calculate the vector and apply a low pass filter: new value = 0.5 * old_value + 0.5 * new_value*/
proc->types.pointer.vect.x = proc->types.pointer.act_point.x - proc->types.pointer.last_point.x;
proc->types.pointer.vect.y = proc->types.pointer.act_point.y - proc->types.pointer.last_point.y;
proc->types.pointer.scroll_throw_vect.x = (proc->types.pointer.scroll_throw_vect.x * 4) >> 3;
proc->types.pointer.scroll_throw_vect.y = (proc->types.pointer.scroll_throw_vect.y * 4) >> 3;
proc->types.pointer.scroll_throw_vect.x += (proc->types.pointer.vect.x * 4) >> 3;
proc->types.pointer.scroll_throw_vect.y += (proc->types.pointer.vect.y * 4) >> 3;
proc->types.pointer.scroll_throw_vect_ori = proc->types.pointer.scroll_throw_vect;
if(indev_obj_act) {
lv_event_send(indev_obj_act, LV_EVENT_PRESSING, indev_act);
if(indev_reset_check(proc)) return;
if(indev_act->proc.wait_until_release) return;
_lv_indev_scroll_handler(proc);
if(indev_reset_check(proc)) return;
indev_gesture(proc);
if(indev_reset_check(proc)) return;
/*If there is no scrolling then check for long press time*/
if(proc->types.pointer.scroll_obj == NULL && proc->long_pr_sent == 0) {
/*Call the ancestor's event handler about the long press if enough time elapsed*/
if(lv_tick_elaps(proc->pr_timestamp) > indev_act->driver->long_press_time) {
lv_event_send(indev_obj_act, LV_EVENT_LONG_PRESSED, indev_act);
if(indev_reset_check(proc)) return;
/*Mark the Call the ancestor's event handler sending to do not send it again*/
proc->long_pr_sent = 1;
/*Save the long press time stamp for the long press repeat handler*/
proc->longpr_rep_timestamp = lv_tick_get();
}
}
/*Send long press repeated Call the ancestor's event handler*/
if(proc->types.pointer.scroll_obj == NULL && proc->long_pr_sent == 1) {
/*Call the ancestor's event handler about the long press repeat if enough time elapsed*/
if(lv_tick_elaps(proc->longpr_rep_timestamp) > indev_act->driver->long_press_repeat_time) {
lv_event_send(indev_obj_act, LV_EVENT_LONG_PRESSED_REPEAT, indev_act);
if(indev_reset_check(proc)) return;
proc->longpr_rep_timestamp = lv_tick_get();
}
}
}
}
/**
* Process the released state of LV_INDEV_TYPE_POINTER input devices
* @param proc pointer to an input device 'proc'
*/
static void indev_proc_release(_lv_indev_proc_t * proc)
{
if(proc->wait_until_release != 0) {
proc->types.pointer.act_obj = NULL;
proc->types.pointer.last_obj = NULL;
proc->pr_timestamp = 0;
proc->longpr_rep_timestamp = 0;
proc->wait_until_release = 0;
}
indev_obj_act = proc->types.pointer.act_obj;
lv_obj_t * scroll_obj = proc->types.pointer.scroll_obj;
/*Forget the act obj and send a released Call the ancestor's event handler*/
if(indev_obj_act) {
LV_LOG_INFO("released");
/*Send RELEASE Call the ancestor's event handler and event*/
lv_event_send(indev_obj_act, LV_EVENT_RELEASED, indev_act);
if(indev_reset_check(proc)) return;
/*Send CLICK if no scrolling*/
if(scroll_obj == NULL) {
if(proc->long_pr_sent == 0) {
lv_event_send(indev_obj_act, LV_EVENT_SHORT_CLICKED, indev_act);
if(indev_reset_check(proc)) return;
}
lv_event_send(indev_obj_act, LV_EVENT_CLICKED, indev_act);
if(indev_reset_check(proc)) return;
}
proc->types.pointer.act_obj = NULL;
proc->pr_timestamp = 0;
proc->longpr_rep_timestamp = 0;
}
/*The reset can be set in the Call the ancestor's event handler function.
* In case of reset query ignore the remaining parts.*/
if(scroll_obj) {
_lv_indev_scroll_throw_handler(proc);
if(indev_reset_check(proc)) return;
}
}
/**
* Process a new point from LV_INDEV_TYPE_BUTTON input device
* @param i pointer to an input device
* @param data pointer to the data read from the input device
* Reset input device if a reset query has been sent to it
* @param indev pointer to an input device
*/
static void indev_proc_reset_query_handler(lv_indev_t * indev)
{
if(indev->proc.reset_query) {
indev->proc.types.pointer.act_obj = NULL;
indev->proc.types.pointer.last_obj = NULL;
indev->proc.types.pointer.scroll_obj = NULL;
indev->proc.long_pr_sent = 0;
indev->proc.pr_timestamp = 0;
indev->proc.longpr_rep_timestamp = 0;
indev->proc.types.pointer.scroll_sum.x = 0;
indev->proc.types.pointer.scroll_sum.y = 0;
indev->proc.types.pointer.scroll_dir = LV_DIR_NONE;
indev->proc.types.pointer.scroll_throw_vect.x = 0;
indev->proc.types.pointer.scroll_throw_vect.y = 0;
indev->proc.types.pointer.gesture_sum.x = 0;
indev->proc.types.pointer.gesture_sum.y = 0;
indev->proc.reset_query = 0;
indev_obj_act = NULL;
}
}
/**
* Handle focus/defocus on click for POINTER input devices
* @param proc pointer to the state of the indev
*/
static void indev_click_focus(_lv_indev_proc_t * proc)
{
/*Handle click focus*/
if(lv_obj_has_flag(indev_obj_act, LV_OBJ_FLAG_CLICK_FOCUSABLE) == false ||
proc->types.pointer.last_pressed == indev_obj_act)
{
return;
}
lv_group_t * g_act = lv_obj_get_group(indev_obj_act);
lv_group_t * g_prev = proc->types.pointer.last_pressed ? lv_obj_get_group(proc->types.pointer.last_pressed) : NULL;
/*If both the last and act. obj. are in the same group (or have no group)*/
if(g_act == g_prev) {
/*The objects are in a group*/
if(g_act) {
lv_group_focus_obj(indev_obj_act);
if(indev_reset_check(proc)) return;
}
/*The object are not in group*/
else {
if(proc->types.pointer.last_pressed) {
lv_event_send(proc->types.pointer.last_pressed, LV_EVENT_DEFOCUSED, indev_act);
if(indev_reset_check(proc)) return;
}
lv_event_send(indev_obj_act, LV_EVENT_FOCUSED, indev_act);
if(indev_reset_check(proc)) return;
}
}
/*The object are not in the same group (in different groups or one has no group)*/
else {
/*If the prev. obj. is not in a group then defocus it.*/
if(g_prev == NULL && proc->types.pointer.last_pressed) {
lv_event_send(proc->types.pointer.last_pressed, LV_EVENT_DEFOCUSED, indev_act);
if(indev_reset_check(proc)) return;
}
/*Focus on a non-group object*/
else {
if(proc->types.pointer.last_pressed) {
/*If the prev. object also wasn't in a group defocus it*/
if(g_prev == NULL) {
lv_event_send(proc->types.pointer.last_pressed, LV_EVENT_DEFOCUSED, indev_act);
if(indev_reset_check(proc)) return;
}
/*If the prev. object also was in a group at least "LEAVE" it instead of defocus*/
else {
lv_event_send(proc->types.pointer.last_pressed, LV_EVENT_LEAVE, indev_act);
if(indev_reset_check(proc)) return;
}
}
}
/*Focus to the act. in its group*/
if(g_act) {
lv_group_focus_obj(indev_obj_act);
if(indev_reset_check(proc)) return;
}
else {
lv_event_send(indev_obj_act, LV_EVENT_FOCUSED, indev_act);
if(indev_reset_check(proc)) return;
}
}
proc->types.pointer.last_pressed = indev_obj_act;
}
/**
* Handle the gesture of indev_proc_p->types.pointer.act_obj
* @param indev pointer to a input device state
*/
void indev_gesture(_lv_indev_proc_t * proc)
{
if(proc->types.pointer.scroll_obj) return;
if(proc->types.pointer.gesture_sent) return;
lv_obj_t * gesture_obj = proc->types.pointer.act_obj;
/*If gesture parent is active check recursively the gesture attribute*/
while(gesture_obj && lv_obj_has_flag(gesture_obj, LV_OBJ_FLAG_GESTURE_BUBBLE)) {
gesture_obj = lv_obj_get_parent(gesture_obj);
}
if(gesture_obj == NULL) return;
if((LV_ABS(proc->types.pointer.vect.x) < indev_act->driver->gesture_min_velocity) &&
(LV_ABS(proc->types.pointer.vect.y) < indev_act->driver->gesture_min_velocity)) {
proc->types.pointer.gesture_sum.x = 0;
proc->types.pointer.gesture_sum.y = 0;
}
/*Count the movement by gesture*/
proc->types.pointer.gesture_sum.x += proc->types.pointer.vect.x;
proc->types.pointer.gesture_sum.y += proc->types.pointer.vect.y;
if((LV_ABS(proc->types.pointer.gesture_sum.x) > indev_act->driver->gesture_limit) ||
(LV_ABS(proc->types.pointer.gesture_sum.y) > indev_act->driver->gesture_limit)) {
proc->types.pointer.gesture_sent = 1;
if(LV_ABS(proc->types.pointer.gesture_sum.x) > LV_ABS(proc->types.pointer.gesture_sum.y)) {
if(proc->types.pointer.gesture_sum.x > 0)
proc->types.pointer.gesture_dir = LV_DIR_RIGHT;
else
proc->types.pointer.gesture_dir = LV_DIR_LEFT;
}
else {
if(proc->types.pointer.gesture_sum.y > 0)
proc->types.pointer.gesture_dir = LV_DIR_BOTTOM;
else
proc->types.pointer.gesture_dir = LV_DIR_TOP;
}
lv_event_send(gesture_obj, LV_EVENT_GESTURE, indev_act);
if(indev_reset_check(proc)) return;
}
}
/**
* Checks if the reset_query flag has been set. If so, perform necessary global indev cleanup actions
* @param proc pointer to an input device 'proc'
* @return true if indev query should be immediately truncated.
*/
static bool indev_reset_check(_lv_indev_proc_t * proc)
{
if(proc->reset_query) {
indev_obj_act = NULL;
}
return proc->reset_query ? true : false;
}
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_indev.c | C | apache-2.0 | 42,674 |
/**
* @file lv_indev.h
*
*/
#ifndef LV_INDEV_H
#define LV_INDEV_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "lv_obj.h"
#include "../hal/lv_hal_indev.h"
#include "lv_group.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Called periodically to read the input devices
* @param param pointer to and input device to read
*/
void lv_indev_read_timer_cb(lv_timer_t * timer);
void lv_indev_enable(lv_indev_t * indev, bool en);
/**
* Get the currently processed input device. Can be used in action functions too.
* @return pointer to the currently processed input device or NULL if no input device processing
* right now
*/
lv_indev_t * lv_indev_get_act(void);
/**
* Get the type of an input device
* @param indev pointer to an input device
* @return the type of the input device from `lv_hal_indev_type_t` (`LV_INDEV_TYPE_...`)
*/
lv_indev_type_t lv_indev_get_type(const lv_indev_t * indev);
/**
* Reset one or all input devices
* @param indev pointer to an input device to reset or NULL to reset all of them
* @param obj pointer to an object which triggers the reset.
*/
void lv_indev_reset(lv_indev_t * indev, lv_obj_t * obj);
/**
* Reset the long press state of an input device
* @param indev pointer to an input device
*/
void lv_indev_reset_long_press(lv_indev_t * indev);
/**
* Set a cursor for a pointer input device (for LV_INPUT_TYPE_POINTER and LV_INPUT_TYPE_BUTTON)
* @param indev pointer to an input device
* @param cur_obj pointer to an object to be used as cursor
*/
void lv_indev_set_cursor(lv_indev_t * indev, lv_obj_t * cur_obj);
/**
* Set a destination group for a keypad input device (for LV_INDEV_TYPE_KEYPAD)
* @param indev pointer to an input device
* @param group point to a group
*/
void lv_indev_set_group(lv_indev_t * indev, lv_group_t * group);
/**
* Set the an array of points for LV_INDEV_TYPE_BUTTON.
* These points will be assigned to the buttons to press a specific point on the screen
* @param indev pointer to an input device
* @param group point to a group
*/
void lv_indev_set_button_points(lv_indev_t * indev, const lv_point_t points[]);
/**
* Get the last point of an input device (for LV_INDEV_TYPE_POINTER and LV_INDEV_TYPE_BUTTON)
* @param indev pointer to an input device
* @param point pointer to a point to store the result
*/
void lv_indev_get_point(const lv_indev_t * indev, lv_point_t * point);
/**
* Get the current gesture direct
* @param indev pointer to an input device
* @return current gesture direct
*/
lv_dir_t lv_indev_get_gesture_dir(const lv_indev_t * indev);
/**
* Get the last pressed key of an input device (for LV_INDEV_TYPE_KEYPAD)
* @param indev pointer to an input device
* @return the last pressed key (0 on error)
*/
uint32_t lv_indev_get_key(const lv_indev_t * indev);
/**
* Check the current scroll direction of an input device (for LV_INDEV_TYPE_POINTER and
* LV_INDEV_TYPE_BUTTON)
* @param indev pointer to an input device
* @return LV_DIR_NONE: no scrolling now
* LV_DIR_HOR/VER
*/
lv_dir_t lv_indev_get_scroll_dir(const lv_indev_t * indev);
/**
* Get the currently scrolled object (for LV_INDEV_TYPE_POINTER and
* LV_INDEV_TYPE_BUTTON)
* @param indev pointer to an input device
* @return pointer to the currently scrolled object or NULL if no scrolling by this indev
*/
lv_obj_t * lv_indev_get_scroll_obj(const lv_indev_t * indev);
/**
* Get the movement vector of an input device (for LV_INDEV_TYPE_POINTER and
* LV_INDEV_TYPE_BUTTON)
* @param indev pointer to an input device
* @param point pointer to a point to store the types.pointer.vector
*/
void lv_indev_get_vect(const lv_indev_t * indev, lv_point_t * point);
/**
* Do nothing until the next release
* @param indev pointer to an input device
*/
void lv_indev_wait_release(lv_indev_t * indev);
/**
* Gets a pointer to the currently active object in the currently processed input device.
* @return pointer to currently active object or NULL if no active object
*/
lv_obj_t * lv_indev_get_obj_act(void);
/**
* Get a pointer to the indev read timer to
* modify its parameters with `lv_timer_...` functions.
* @param indev pointer to an input device
* @return pointer to the indev read refresher timer. (NULL on error)
*/
lv_timer_t * lv_indev_get_read_timer(lv_disp_t * indev);
/**
* Search the most top, clickable object by a point
* @param obj pointer to a start object, typically the screen
* @param point pointer to a point for searching the most top child
* @return pointer to the found object or NULL if there was no suitable object
*/
lv_obj_t * lv_indev_search_obj(lv_obj_t * obj, lv_point_t * point);
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_INDEV_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_indev.h | C | apache-2.0 | 5,000 |
/**
* @file lv_indev_scroll.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_indev.h"
#include "lv_indev_scroll.h"
/*********************
* DEFINES
*********************/
#define ELASTIC_SLOWNESS_FACTOR 4 /*Scrolling on elastic parts are slower by this factor*/
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static lv_obj_t * find_scroll_obj(_lv_indev_proc_t * proc);
static void init_scroll_limits(_lv_indev_proc_t * proc);
static lv_coord_t find_snap_point_x(const lv_obj_t * obj, lv_coord_t min, lv_coord_t max, lv_coord_t ofs);
static lv_coord_t find_snap_point_y(const lv_obj_t * obj, lv_coord_t min, lv_coord_t max, lv_coord_t ofs);
static void scroll_limit_diff(_lv_indev_proc_t * proc, lv_coord_t * diff_x, lv_coord_t * diff_y);
static lv_coord_t scroll_throw_predict_y(_lv_indev_proc_t * proc);
static lv_coord_t scroll_throw_predict_x(_lv_indev_proc_t * proc);
static lv_coord_t elastic_diff(lv_obj_t * scroll_obj, lv_coord_t diff, lv_coord_t scroll_start, lv_coord_t scroll_end,
lv_dir_t dir);
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
void _lv_indev_scroll_handler(_lv_indev_proc_t * proc)
{
lv_obj_t * scroll_obj = proc->types.pointer.scroll_obj;
/*If there is no scroll object yet try to find one*/
if(scroll_obj == NULL) {
proc->types.pointer.scroll_sum.x += proc->types.pointer.vect.x;
proc->types.pointer.scroll_sum.y += proc->types.pointer.vect.y;
scroll_obj = find_scroll_obj(proc);
if(scroll_obj == NULL) return;
init_scroll_limits(proc);
lv_event_send(scroll_obj, LV_EVENT_SCROLL_BEGIN, NULL);
if(proc->reset_query) return;
}
/*Set new position or scroll if the vector is not zero*/
if(proc->types.pointer.vect.x != 0 || proc->types.pointer.vect.y != 0) {
lv_coord_t diff_x = 0;
lv_coord_t diff_y = 0;
if(proc->types.pointer.scroll_dir == LV_DIR_HOR) {
lv_coord_t sr = lv_obj_get_scroll_right(scroll_obj);
lv_coord_t sl = lv_obj_get_scroll_left(scroll_obj);
diff_x = elastic_diff(scroll_obj, proc->types.pointer.vect.x, sl, sr, LV_DIR_HOR);
}
else {
lv_coord_t st = lv_obj_get_scroll_top(scroll_obj);
lv_coord_t sb = lv_obj_get_scroll_bottom(scroll_obj);
diff_y = elastic_diff(scroll_obj, proc->types.pointer.vect.y, st, sb, LV_DIR_VER);
}
lv_dir_t scroll_dir = lv_obj_get_scroll_dir(scroll_obj);
if((scroll_dir & LV_DIR_LEFT) == 0 && diff_x > 0) diff_x = 0;
if((scroll_dir & LV_DIR_RIGHT) == 0 && diff_x < 0) diff_x = 0;
if((scroll_dir & LV_DIR_TOP) == 0 && diff_y > 0) diff_y = 0;
if((scroll_dir & LV_DIR_BOTTOM) == 0 && diff_y < 0) diff_y = 0;
/*Respect the scroll limit area*/
scroll_limit_diff(proc, &diff_x, &diff_y);
lv_obj_scroll_by(scroll_obj, diff_x, diff_y, LV_ANIM_OFF);
proc->types.pointer.scroll_sum.x += diff_x;
proc->types.pointer.scroll_sum.y += diff_y;
}
}
void _lv_indev_scroll_throw_handler(_lv_indev_proc_t * proc)
{
lv_obj_t * scroll_obj = proc->types.pointer.scroll_obj;
if(scroll_obj == NULL) return;
if(proc->types.pointer.scroll_dir == LV_DIR_NONE) return;
lv_indev_t * indev_act = lv_indev_get_act();
lv_coord_t scroll_throw = indev_act->driver->scroll_throw;
if(lv_obj_has_flag(scroll_obj, LV_OBJ_FLAG_SCROLL_MOMENTUM) == false) {
proc->types.pointer.scroll_throw_vect.y = 0;
proc->types.pointer.scroll_throw_vect.x = 0;
}
lv_scroll_snap_t align_x = lv_obj_get_scroll_snap_x(scroll_obj);
lv_scroll_snap_t align_y = lv_obj_get_scroll_snap_y(scroll_obj);
if(proc->types.pointer.scroll_dir == LV_DIR_VER) {
proc->types.pointer.scroll_throw_vect.x = 0;
/*If no snapping "throw"*/
if(align_y == LV_SCROLL_SNAP_NONE) {
proc->types.pointer.scroll_throw_vect.y =
proc->types.pointer.scroll_throw_vect.y * (100 - scroll_throw) / 100;
lv_coord_t sb = lv_obj_get_scroll_bottom(scroll_obj);
lv_coord_t st = lv_obj_get_scroll_top(scroll_obj);
proc->types.pointer.scroll_throw_vect.y = elastic_diff(scroll_obj, proc->types.pointer.scroll_throw_vect.y, st, sb,
LV_DIR_VER);
lv_obj_scroll_by(scroll_obj, 0, proc->types.pointer.scroll_throw_vect.y, LV_ANIM_OFF);
}
/*With snapping find the nearest snap point and scroll there*/
else {
lv_coord_t diff_y = scroll_throw_predict_y(proc);
proc->types.pointer.scroll_throw_vect.y = 0;
scroll_limit_diff(proc, NULL, &diff_y);
lv_coord_t y = find_snap_point_y(scroll_obj, LV_COORD_MIN, LV_COORD_MAX, diff_y);
lv_obj_scroll_by(scroll_obj, 0, diff_y + y, LV_ANIM_ON);
}
}
else if(proc->types.pointer.scroll_dir == LV_DIR_HOR) {
proc->types.pointer.scroll_throw_vect.y = 0;
/*If no snapping "throw"*/
if(align_x == LV_SCROLL_SNAP_NONE) {
proc->types.pointer.scroll_throw_vect.x =
proc->types.pointer.scroll_throw_vect.x * (100 - scroll_throw) / 100;
lv_coord_t sl = lv_obj_get_scroll_left(scroll_obj);
lv_coord_t sr = lv_obj_get_scroll_right(scroll_obj);
proc->types.pointer.scroll_throw_vect.x = elastic_diff(scroll_obj, proc->types.pointer.scroll_throw_vect.x, sl, sr,
LV_DIR_HOR);
lv_obj_scroll_by(scroll_obj, proc->types.pointer.scroll_throw_vect.x, 0, LV_ANIM_OFF);
}
/*With snapping find the nearest snap point and scroll there*/
else {
lv_coord_t diff_x = scroll_throw_predict_x(proc);
proc->types.pointer.scroll_throw_vect.x = 0;
scroll_limit_diff(proc, &diff_x, NULL);
lv_coord_t x = find_snap_point_x(scroll_obj, LV_COORD_MIN, LV_COORD_MAX, diff_x);
lv_obj_scroll_by(scroll_obj, x + diff_x, 0, LV_ANIM_ON);
}
}
/*Check if the scroll has finished*/
if(proc->types.pointer.scroll_throw_vect.x == 0 && proc->types.pointer.scroll_throw_vect.y == 0) {
/*Revert if scrolled in*/
/*If vertically scrollable and not controlled by snap*/
if(align_y == LV_SCROLL_SNAP_NONE) {
lv_coord_t st = lv_obj_get_scroll_top(scroll_obj);
lv_coord_t sb = lv_obj_get_scroll_bottom(scroll_obj);
if(st > 0 || sb > 0) {
if(st < 0) {
lv_obj_scroll_by(scroll_obj, 0, st, LV_ANIM_ON);
}
else if(sb < 0) {
lv_obj_scroll_by(scroll_obj, 0, -sb, LV_ANIM_ON);
}
}
}
/*If horizontally scrollable and not controlled by snap*/
if(align_x == LV_SCROLL_SNAP_NONE) {
lv_coord_t sl = lv_obj_get_scroll_left(scroll_obj);
lv_coord_t sr = lv_obj_get_scroll_right(scroll_obj);
if(sl > 0 || sr > 0) {
if(sl < 0) {
lv_obj_scroll_by(scroll_obj, sl, 0, LV_ANIM_ON);
}
else if(sr < 0) {
lv_obj_scroll_by(scroll_obj, -sr, 0, LV_ANIM_ON);
}
}
}
lv_event_send(scroll_obj, LV_EVENT_SCROLL_END, indev_act);
if(proc->reset_query) return;
proc->types.pointer.scroll_dir = LV_DIR_NONE;
proc->types.pointer.scroll_obj = NULL;
}
}
/**
* Predict where would a scroll throw end
* @param indev pointer to an input device
* @param dir `LV_DIR_VER` or `LV_DIR_HOR`
* @return the difference compared to the current position when the throw would be finished
*/
lv_coord_t lv_indev_scroll_throw_predict(lv_indev_t * indev, lv_dir_t dir)
{
if(indev == NULL) return 0;
lv_coord_t v;
switch(dir) {
case LV_DIR_VER:
v = indev->proc.types.pointer.scroll_throw_vect_ori.y;
break;
case LV_DIR_HOR:
v = indev->proc.types.pointer.scroll_throw_vect_ori.x;
break;
default:
return 0;
}
lv_coord_t scroll_throw = indev->driver->scroll_throw;
lv_coord_t sum = 0;
while(v) {
sum += v;
v = v * (100 - scroll_throw) / 100;
}
return sum;
}
void lv_indev_scroll_get_snap_dist(lv_obj_t * obj, lv_point_t * p)
{
p->x = find_snap_point_x(obj, obj->coords.x1, obj->coords.x2, 0);
p->y = find_snap_point_y(obj, obj->coords.y1, obj->coords.y2, 0);
}
/**********************
* STATIC FUNCTIONS
**********************/
static lv_obj_t * find_scroll_obj(_lv_indev_proc_t * proc)
{
lv_obj_t * obj_candidate = NULL;
lv_dir_t dir_candidate = LV_DIR_NONE;
lv_indev_t * indev_act = lv_indev_get_act();
lv_coord_t scroll_limit = indev_act->driver->scroll_limit;
/*Go until find a scrollable object in the current direction
*More precisely:
* 1. Check the pressed object and all of its ancestors and try to find an object which is scrollable
* 2. Scrollable means it has some content out of its area
* 3. If an object can be scrolled into the current direction then use it ("real match"")
* 4. If can be scrolled on the current axis (hor/ver) save it as candidate (at least show an elastic scroll effect)
* 5. Use the last candidate. Always the "deepest" parent or the object from point 3*/
lv_obj_t * obj_act = proc->types.pointer.act_obj;
while(obj_act) {
if(lv_obj_has_flag(obj_act, LV_OBJ_FLAG_SCROLLABLE) == false) {
/*If this object don't want to chain the scroll ot the parent stop searching*/
if(lv_obj_has_flag(obj_act, LV_OBJ_FLAG_SCROLL_CHAIN) == false) break;
obj_act = lv_obj_get_parent(obj_act);
continue;
}
/*Decide if it's a horizontal or vertical scroll*/
bool hor_en = false;
bool ver_en = false;
if(LV_ABS(proc->types.pointer.scroll_sum.x) > LV_ABS(proc->types.pointer.scroll_sum.y)) {
hor_en = true;
}
else {
ver_en = true;
}
/*Consider both up-down or left/right scrollable according to the current direction*/
bool up_en = ver_en;
bool down_en = ver_en;
bool left_en = hor_en;
bool right_en = hor_en;
/*The object might have disabled some directions.*/
lv_dir_t scroll_dir = lv_obj_get_scroll_dir(obj_act);
if((scroll_dir & LV_DIR_LEFT) == 0) left_en = false;
if((scroll_dir & LV_DIR_RIGHT) == 0) right_en = false;
if((scroll_dir & LV_DIR_TOP) == 0) up_en = false;
if((scroll_dir & LV_DIR_BOTTOM) == 0) down_en = false;
/*The object is scrollable to a direction if its content overflow in that direction.*/
lv_coord_t st = lv_obj_get_scroll_top(obj_act);
lv_coord_t sb = lv_obj_get_scroll_bottom(obj_act);
lv_coord_t sl = lv_obj_get_scroll_left(obj_act);
lv_coord_t sr = lv_obj_get_scroll_right(obj_act);
/*If this object is scrollable into the current scroll direction then save it as a candidate.
*It's important only to be scrollable on the current axis (hor/ver) because if the scroll
*is propagated to this object it can show at least elastic scroll effect.
*But if not hor/ver scrollable do not scroll it at all (so it's not a good candidate)*/
if((st > 0 || sb > 0) &&
((up_en && proc->types.pointer.scroll_sum.y >= scroll_limit) ||
(down_en && proc->types.pointer.scroll_sum.y <= - scroll_limit))) {
obj_candidate = obj_act;
dir_candidate = LV_DIR_VER;
}
if((sl > 0 || sr > 0) &&
((left_en && proc->types.pointer.scroll_sum.x >= scroll_limit) ||
(right_en && proc->types.pointer.scroll_sum.x <= - scroll_limit))) {
obj_candidate = obj_act;
dir_candidate = LV_DIR_HOR;
}
if(st <= 0) up_en = false;
if(sb <= 0) down_en = false;
if(sl <= 0) left_en = false;
if(sr <= 0) right_en = false;
/*If the object really can be scrolled into the current direction the use it.*/
if((left_en && proc->types.pointer.scroll_sum.x >= scroll_limit) ||
(right_en && proc->types.pointer.scroll_sum.x <= - scroll_limit) ||
(up_en && proc->types.pointer.scroll_sum.y >= scroll_limit) ||
(down_en && proc->types.pointer.scroll_sum.y <= - scroll_limit)) {
proc->types.pointer.scroll_dir = hor_en ? LV_DIR_HOR : LV_DIR_VER;
break;
}
/*If this object don't want to chain the scroll ot the parent stop searching*/
if(lv_obj_has_flag(obj_act, LV_OBJ_FLAG_SCROLL_CHAIN) == false) break;
/*Try the parent*/
obj_act = lv_obj_get_parent(obj_act);
}
/*Use the last candidate*/
if(obj_candidate) {
proc->types.pointer.scroll_dir = dir_candidate;
proc->types.pointer.scroll_obj = obj_candidate;
proc->types.pointer.scroll_sum.x = 0;
proc->types.pointer.scroll_sum.y = 0;
}
return obj_candidate;
}
static void init_scroll_limits(_lv_indev_proc_t * proc)
{
lv_obj_t * obj = proc->types.pointer.scroll_obj;
/*If there no STOP allow scrolling anywhere*/
if(lv_obj_has_flag(obj, LV_OBJ_FLAG_SCROLL_ONE) == false) {
lv_area_set(&proc->types.pointer.scroll_area, LV_COORD_MIN, LV_COORD_MIN, LV_COORD_MAX, LV_COORD_MAX);
}
/*With STOP limit the scrolling to the perv and next snap point*/
else {
switch(lv_obj_get_scroll_snap_y(obj)) {
case LV_SCROLL_SNAP_START:
proc->types.pointer.scroll_area.y1 = find_snap_point_y(obj, obj->coords.y1 + 1, LV_COORD_MAX, 0);
proc->types.pointer.scroll_area.y2 = find_snap_point_y(obj, LV_COORD_MIN, obj->coords.y1 - 1, 0);
break;
case LV_SCROLL_SNAP_END:
proc->types.pointer.scroll_area.y1 = find_snap_point_y(obj, obj->coords.y2, LV_COORD_MAX, 0);
proc->types.pointer.scroll_area.y2 = find_snap_point_y(obj, LV_COORD_MIN, obj->coords.y2, 0);
break;
case LV_SCROLL_SNAP_CENTER: {
lv_coord_t y_mid = obj->coords.y1 + lv_area_get_height(&obj->coords) / 2;
proc->types.pointer.scroll_area.y1 = find_snap_point_y(obj, y_mid + 1, LV_COORD_MAX, 0);
proc->types.pointer.scroll_area.y2 = find_snap_point_y(obj, LV_COORD_MIN, y_mid - 1, 0);
break;
}
default:
proc->types.pointer.scroll_area.y1 = LV_COORD_MIN;
proc->types.pointer.scroll_area.y2 = LV_COORD_MAX;
break;
}
switch(lv_obj_get_scroll_snap_x(obj)) {
case LV_SCROLL_SNAP_START:
proc->types.pointer.scroll_area.x1 = find_snap_point_x(obj, obj->coords.x1, LV_COORD_MAX, 0);
proc->types.pointer.scroll_area.x2 = find_snap_point_x(obj, LV_COORD_MIN, obj->coords.x1, 0);
break;
case LV_SCROLL_SNAP_END:
proc->types.pointer.scroll_area.x1 = find_snap_point_x(obj, obj->coords.x2, LV_COORD_MAX, 0);
proc->types.pointer.scroll_area.x2 = find_snap_point_x(obj, LV_COORD_MIN, obj->coords.x2, 0);
break;
case LV_SCROLL_SNAP_CENTER: {
lv_coord_t x_mid = obj->coords.x1 + lv_area_get_width(&obj->coords) / 2;
proc->types.pointer.scroll_area.x1 = find_snap_point_x(obj, x_mid + 1, LV_COORD_MAX, 0);
proc->types.pointer.scroll_area.x2 = find_snap_point_x(obj, LV_COORD_MIN, x_mid - 1, 0);
break;
}
default:
proc->types.pointer.scroll_area.x1 = LV_COORD_MIN;
proc->types.pointer.scroll_area.x2 = LV_COORD_MAX;
break;
}
}
/*Allow scrolling on the edges. It will be reverted to the edge due to snapping anyway*/
if(proc->types.pointer.scroll_area.x1 == 0) proc->types.pointer.scroll_area.x1 = LV_COORD_MIN;
if(proc->types.pointer.scroll_area.x2 == 0) proc->types.pointer.scroll_area.x2 = LV_COORD_MAX;
if(proc->types.pointer.scroll_area.y1 == 0) proc->types.pointer.scroll_area.y1 = LV_COORD_MIN;
if(proc->types.pointer.scroll_area.y2 == 0) proc->types.pointer.scroll_area.y2 = LV_COORD_MAX;
}
/**
* Search for snap point in the `min` - `max` range.
* @param obj the object on which snap point should be found
* @param min ignore snap points smaller than this. (Absolute coordinate)
* @param max ignore snap points greater than this. (Absolute coordinate)
* @param ofs offset to snap points. Useful the get a snap point in an imagined case
* what if children are already moved by this value
* @return the distance of the snap point.
*/
static lv_coord_t find_snap_point_x(const lv_obj_t * obj, lv_coord_t min, lv_coord_t max, lv_coord_t ofs)
{
lv_scroll_snap_t align = lv_obj_get_scroll_snap_x(obj);
if(align == LV_SCROLL_SNAP_NONE) return 0;
lv_coord_t dist = LV_COORD_MAX;
lv_coord_t pad_left = lv_obj_get_style_pad_left(obj, LV_PART_MAIN);
lv_coord_t pad_right = lv_obj_get_style_pad_right(obj, LV_PART_MAIN);
uint32_t i;
uint32_t child_cnt = lv_obj_get_child_cnt(obj);
for(i = 0; i < child_cnt; i++) {
lv_obj_t * child = obj->spec_attr->children[i];
if(lv_obj_has_flag_any(child, LV_OBJ_FLAG_HIDDEN | LV_OBJ_FLAG_FLOATING)) continue;
if(lv_obj_has_flag(child, LV_OBJ_FLAG_SNAPPABLE)) {
lv_coord_t x_child = 0;
lv_coord_t x_parent = 0;
switch(align) {
case LV_SCROLL_SNAP_START:
x_child = child->coords.x1;
x_parent = obj->coords.x1 + pad_left;
break;
case LV_SCROLL_SNAP_END:
x_child = child->coords.x2;
x_parent = obj->coords.x2 - pad_right;
break;
case LV_SCROLL_SNAP_CENTER:
x_child = child->coords.x1 + lv_area_get_width(&child->coords) / 2;
x_parent = obj->coords.x1 + pad_left + (lv_area_get_width(&obj->coords) - pad_left - pad_right) / 2;
break;
default:
continue;
}
x_child += ofs;
if(x_child >= min && x_child <= max) {
lv_coord_t x = x_child - x_parent;
if(LV_ABS(x) < LV_ABS(dist)) dist = x;
}
}
}
return dist == LV_COORD_MAX ? 0 : -dist;
}
/**
* Search for snap point in the `min` - `max` range.
* @param obj the object on which snap point should be found
* @param min ignore snap points smaller than this. (Absolute coordinate)
* @param max ignore snap points greater than this. (Absolute coordinate)
* @param ofs offset to snap points. Useful to get a snap point in an imagined case
* what if children are already moved by this value
* @return the distance of the snap point.
*/
static lv_coord_t find_snap_point_y(const lv_obj_t * obj, lv_coord_t min, lv_coord_t max, lv_coord_t ofs)
{
lv_scroll_snap_t align = lv_obj_get_scroll_snap_y(obj);
if(align == LV_SCROLL_SNAP_NONE) return 0;
lv_coord_t dist = LV_COORD_MAX;
lv_coord_t pad_top = lv_obj_get_style_pad_top(obj, LV_PART_MAIN);
lv_coord_t pad_bottom = lv_obj_get_style_pad_bottom(obj, LV_PART_MAIN);
uint32_t i;
uint32_t child_cnt = lv_obj_get_child_cnt(obj);
for(i = 0; i < child_cnt; i++) {
lv_obj_t * child = obj->spec_attr->children[i];
if(lv_obj_has_flag_any(child, LV_OBJ_FLAG_HIDDEN | LV_OBJ_FLAG_FLOATING)) continue;
if(lv_obj_has_flag(child, LV_OBJ_FLAG_SNAPPABLE)) {
lv_coord_t y_child = 0;
lv_coord_t y_parent = 0;
switch(align) {
case LV_SCROLL_SNAP_START:
y_child = child->coords.y1;
y_parent = obj->coords.y1 + pad_top;
break;
case LV_SCROLL_SNAP_END:
y_child = child->coords.y2;
y_parent = obj->coords.y2 - pad_bottom;
break;
case LV_SCROLL_SNAP_CENTER:
y_child = child->coords.y1 + lv_area_get_height(&child->coords) / 2;
y_parent = obj->coords.y1 + pad_top + (lv_area_get_height(&obj->coords) - pad_top - pad_bottom) / 2;
break;
default:
continue;
}
y_child += ofs;
if(y_child >= min && y_child <= max) {
lv_coord_t y = y_child - y_parent;
if(LV_ABS(y) < LV_ABS(dist)) dist = y;
}
}
}
return dist == LV_COORD_MAX ? 0 : -dist;
}
static void scroll_limit_diff(_lv_indev_proc_t * proc, lv_coord_t * diff_x, lv_coord_t * diff_y)
{
if(diff_y) {
if(proc->types.pointer.scroll_sum.y + *diff_y < proc->types.pointer.scroll_area.y1) {
*diff_y = proc->types.pointer.scroll_area.y1 - proc->types.pointer.scroll_sum.y;
}
if(proc->types.pointer.scroll_sum.y + *diff_y > proc->types.pointer.scroll_area.y2) {
*diff_y = proc->types.pointer.scroll_area.y2 - proc->types.pointer.scroll_sum.y;
}
}
if(diff_x) {
if(proc->types.pointer.scroll_sum.x + *diff_x < proc->types.pointer.scroll_area.x1) {
*diff_x = proc->types.pointer.scroll_area.x1 - proc->types.pointer.scroll_sum.x;
}
if(proc->types.pointer.scroll_sum.x + *diff_x > proc->types.pointer.scroll_area.x2) {
*diff_x = proc->types.pointer.scroll_area.x2 - proc->types.pointer.scroll_sum.x;
}
}
}
static lv_coord_t scroll_throw_predict_y(_lv_indev_proc_t * proc)
{
lv_coord_t y = proc->types.pointer.scroll_throw_vect.y;
lv_coord_t move = 0;
lv_indev_t * indev_act = lv_indev_get_act();
lv_coord_t scroll_throw = indev_act->driver->scroll_throw;
while(y) {
move += y;
y = y * (100 - scroll_throw) / 100;
}
return move;
}
static lv_coord_t scroll_throw_predict_x(_lv_indev_proc_t * proc)
{
lv_coord_t x = proc->types.pointer.scroll_throw_vect.x;
lv_coord_t move = 0;
lv_indev_t * indev_act = lv_indev_get_act();
lv_coord_t scroll_throw = indev_act->driver->scroll_throw;
while(x) {
move += x;
x = x * (100 - scroll_throw) / 100;
}
return move;
}
static lv_coord_t elastic_diff(lv_obj_t * scroll_obj, lv_coord_t diff, lv_coord_t scroll_start, lv_coord_t scroll_end,
lv_dir_t dir)
{
if(lv_obj_has_flag(scroll_obj, LV_OBJ_FLAG_SCROLL_ELASTIC)) {
/*If there is snapping in the current direction don't use the elastic factor because
*it's natural that the first and last items are scrolled (snapped) in.*/
lv_scroll_snap_t snap;
snap = dir == LV_DIR_HOR ? lv_obj_get_scroll_snap_x(scroll_obj) : lv_obj_get_scroll_snap_y(scroll_obj);
lv_obj_t * act_obj = lv_indev_get_obj_act();
lv_coord_t snap_point = 0;
lv_coord_t act_obj_point = 0;
if(dir == LV_DIR_HOR) {
lv_coord_t pad_left = lv_obj_get_style_pad_left(scroll_obj, LV_PART_MAIN);
lv_coord_t pad_right = lv_obj_get_style_pad_right(scroll_obj, LV_PART_MAIN);
switch(snap) {
case LV_SCROLL_SNAP_CENTER:
snap_point = pad_left + (lv_area_get_width(&scroll_obj->coords) - pad_left - pad_right) / 2 + scroll_obj->coords.x1;
act_obj_point = lv_area_get_width(&act_obj->coords) / 2 + act_obj->coords.x1;
break;
case LV_SCROLL_SNAP_START:
snap_point = scroll_obj->coords.x1 + pad_left;
act_obj_point = act_obj->coords.x1;
break;
case LV_SCROLL_SNAP_END:
snap_point = scroll_obj->coords.x2 - pad_right;
act_obj_point = act_obj->coords.x2;
break;
}
}
else {
lv_coord_t pad_top = lv_obj_get_style_pad_top(scroll_obj, LV_PART_MAIN);
lv_coord_t pad_bottom = lv_obj_get_style_pad_bottom(scroll_obj, LV_PART_MAIN);
switch(snap) {
case LV_SCROLL_SNAP_CENTER:
snap_point = pad_top + (lv_area_get_height(&scroll_obj->coords) - pad_top - pad_bottom) / 2 + scroll_obj->coords.y1;
act_obj_point = lv_area_get_height(&act_obj->coords) / 2 + act_obj->coords.y1;
break;
case LV_SCROLL_SNAP_START:
snap_point = scroll_obj->coords.y1 + pad_top;
act_obj_point = act_obj->coords.y1;
break;
case LV_SCROLL_SNAP_END:
snap_point = scroll_obj->coords.y2 - pad_bottom;
act_obj_point = act_obj->coords.y2;
break;
}
}
if(scroll_end < 0) {
if(snap != LV_SCROLL_SNAP_NONE && act_obj_point > snap_point) return diff;
/*Rounding*/
if(diff < 0) diff -= ELASTIC_SLOWNESS_FACTOR / 2;
if(diff > 0) diff += ELASTIC_SLOWNESS_FACTOR / 2;
return diff / ELASTIC_SLOWNESS_FACTOR;
}
else if(scroll_start < 0) {
if(snap != LV_SCROLL_SNAP_NONE && act_obj_point < snap_point) return diff;
/*Rounding*/
if(diff < 0) diff -= ELASTIC_SLOWNESS_FACTOR / 2;
if(diff > 0) diff += ELASTIC_SLOWNESS_FACTOR / 2;
return diff / ELASTIC_SLOWNESS_FACTOR;
}
}
else {
/*Scroll back to the boundary if required*/
if(scroll_end + diff < 0) diff = - scroll_end;
if(scroll_start - diff < 0) diff = scroll_start;
}
return diff;
}
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_indev_scroll.c | C | apache-2.0 | 26,527 |
/**
* @file lv_indev_scroll.h
*
*/
#ifndef LV_INDEV_SCROLL_H
#define LV_INDEV_SCROLL_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "lv_obj.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Handle scrolling. Called by LVGL during input device processing
* @param proc pointer to an input device's proc field
*/
void _lv_indev_scroll_handler(_lv_indev_proc_t * proc);
/**
* Handle throwing after scrolling. Called by LVGL during input device processing
* @param proc pointer to an input device's proc field
*/
void _lv_indev_scroll_throw_handler(_lv_indev_proc_t * proc);
/**
* Predict where would a scroll throw end
* @param indev pointer to an input device
* @param dir ` LV_DIR_VER` or `LV_DIR_HOR`
* @return the difference compared to the current position when the throw would be finished
*/
lv_coord_t lv_indev_scroll_throw_predict(lv_indev_t * indev, lv_dir_t dir);
/**
* Get the distance of the nearest snap point
* @param obj the object on which snap points should be found
* @param p save the distance of the found snap point there
*/
void lv_indev_scroll_get_snap_dist(lv_obj_t * obj, lv_point_t * p);
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_INDEV_SCROLL_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_indev_scroll.h | C | apache-2.0 | 1,544 |
/**
* @file lv_obj.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_obj.h"
#include "lv_indev.h"
#include "lv_refr.h"
#include "lv_group.h"
#include "lv_disp.h"
#include "lv_theme.h"
#include "../misc/lv_assert.h"
#include "../draw/lv_draw.h"
#include "../misc/lv_anim.h"
#include "../misc/lv_timer.h"
#include "../misc/lv_async.h"
#include "../misc/lv_fs.h"
#include "../misc/lv_gc.h"
#include "../misc/lv_math.h"
#include "../misc/lv_log.h"
#include "../hal/lv_hal.h"
#include "../extra/lv_extra.h"
#include <stdint.h>
#include <string.h>
#if LV_USE_GPU_STM32_DMA2D
#include "../gpu/lv_gpu_stm32_dma2d.h"
#endif
#if LV_USE_GPU_NXP_PXP && LV_USE_GPU_NXP_PXP_AUTO_INIT
#include "../gpu/lv_gpu_nxp_pxp.h"
#include "../gpu/lv_gpu_nxp_pxp_osa.h"
#endif
#if LV_USE_GPU_SDL
#include "../gpu/lv_gpu_sdl.h"
#endif
/*********************
* DEFINES
*********************/
#define MY_CLASS &lv_obj_class
#define LV_OBJ_DEF_WIDTH (LV_DPX(100))
#define LV_OBJ_DEF_HEIGHT (LV_DPX(50))
#define GRID_DEBUG 0 /*Draw rectangles on grid cells*/
#define STYLE_TRANSITION_MAX 32
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static void lv_obj_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj);
static void lv_obj_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj);
static void lv_obj_draw(lv_event_t * e);
static void lv_obj_event(const lv_obj_class_t * class_p, lv_event_t * e);
static void draw_scrollbar(lv_obj_t * obj, const lv_area_t * clip_area);
static lv_res_t scrollbar_init_draw_dsc(lv_obj_t * obj, lv_draw_rect_dsc_t * dsc);
static bool obj_valid_child(const lv_obj_t * parent, const lv_obj_t * obj_to_find);
static void lv_obj_set_state(lv_obj_t * obj, lv_state_t new_state);
/**********************
* STATIC VARIABLES
**********************/
static bool lv_initialized = false;
const lv_obj_class_t lv_obj_class = {
.constructor_cb = lv_obj_constructor,
.destructor_cb = lv_obj_destructor,
.event_cb = lv_obj_event,
.width_def = LV_DPI_DEF,
.height_def = LV_DPI_DEF,
.editable = LV_OBJ_CLASS_EDITABLE_FALSE,
.group_def = LV_OBJ_CLASS_GROUP_DEF_FALSE,
.instance_size = (sizeof(lv_obj_t)),
.base_class = NULL,
};
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
bool lv_is_initialized(void)
{
return lv_initialized;
}
void lv_init(void)
{
/*Do nothing if already initialized*/
if(lv_initialized) {
LV_LOG_WARN("lv_init: already inited");
return;
}
LV_LOG_INFO("begin");
/*Initialize the misc modules*/
lv_mem_init();
_lv_timer_core_init();
_lv_fs_init();
_lv_anim_core_init();
_lv_group_init();
#if LV_USE_GPU_STM32_DMA2D
/*Initialize DMA2D GPU*/
lv_gpu_stm32_dma2d_init();
#endif
#if LV_USE_GPU_NXP_PXP && LV_USE_GPU_NXP_PXP_AUTO_INIT
if(lv_gpu_nxp_pxp_init(&pxp_default_cfg) != LV_RES_OK) {
LV_LOG_ERROR("PXP init error. STOP.\n");
for(; ;) ;
}
#endif
#if LV_USE_GPU_SDL
lv_gpu_sdl_init();
#endif
_lv_obj_style_init();
_lv_ll_init(&LV_GC_ROOT(_lv_disp_ll), sizeof(lv_disp_t));
_lv_ll_init(&LV_GC_ROOT(_lv_indev_ll), sizeof(lv_indev_t));
/*Initialize the screen refresh system*/
_lv_refr_init();
_lv_img_decoder_init();
#if LV_IMG_CACHE_DEF_SIZE
lv_img_cache_set_size(LV_IMG_CACHE_DEF_SIZE);
#endif
/*Test if the IDE has UTF-8 encoding*/
char * txt = "Á";
uint8_t * txt_u8 = (uint8_t *)txt;
if(txt_u8[0] != 0xc3 || txt_u8[1] != 0x81 || txt_u8[2] != 0x00) {
LV_LOG_WARN("The strings has no UTF-8 encoding. Non-ASCII characters won't be displayed.");
}
uint32_t endianess_test = 0x11223344;
uint8_t * endianess_test_p = (uint8_t *) &endianess_test;
bool big_endian = endianess_test_p[0] == 0x11 ? true : false;
if(big_endian) {
LV_ASSERT_MSG(LV_BIG_ENDIAN_SYSTEM == 1,
"It's a big endian system but LV_BIG_ENDIAN_SYSTEM is not enabled in lv_conf.h");
}
else {
LV_ASSERT_MSG(LV_BIG_ENDIAN_SYSTEM == 0,
"It's a little endian system but LV_BIG_ENDIAN_SYSTEM is enabled in lv_conf.h");
}
#if LV_USE_ASSERT_MEM_INTEGRITY
LV_LOG_WARN("Memory integrity checks are enabled via LV_USE_ASSERT_MEM_INTEGRITY which makes LVGL much slower");
#endif
#if LV_USE_ASSERT_OBJ
LV_LOG_WARN("Object sanity checks are enabled via LV_USE_ASSERT_OBJ which makes LVGL much slower");
#endif
#if LV_USE_ASSERT_STYLE
LV_LOG_WARN("Style sanity checks are enabled that uses more RAM");
#endif
#if LV_LOG_LEVEL == LV_LOG_LEVEL_TRACE
LV_LOG_WARN("Log level is set the Trace which makes LVGL much slower");
#endif
lv_extra_init();
lv_initialized = true;
LV_LOG_TRACE("finished");
}
#if LV_ENABLE_GC || !LV_MEM_CUSTOM || LV_USE_GPU_SDL
void lv_deinit(void)
{
#if LV_USE_GPU_SDL
lv_gpu_sdl_deinit();
#endif
_lv_gc_clear_roots();
lv_disp_set_default(NULL);
lv_mem_deinit();
lv_initialized = false;
LV_LOG_INFO("lv_deinit done");
#if LV_USE_LOG
lv_log_register_print_cb(NULL);
#endif
}
#endif
lv_obj_t * lv_obj_create(lv_obj_t * parent)
{
LV_LOG_INFO("begin");
lv_obj_t * obj = lv_obj_class_create_obj(MY_CLASS, parent);
lv_obj_class_init_obj(obj);
return obj;
}
/*=====================
* Setter functions
*====================*/
/*-----------------
* Attribute set
*----------------*/
void lv_obj_add_flag(lv_obj_t * obj, lv_obj_flag_t f)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
bool was_on_layout = lv_obj_is_layout_positioned(obj);
if(f & LV_OBJ_FLAG_HIDDEN) lv_obj_invalidate(obj);
obj->flags |= f;
if(f & LV_OBJ_FLAG_HIDDEN) {
lv_obj_invalidate(obj);
}
if((was_on_layout != lv_obj_is_layout_positioned(obj)) || (f & (LV_OBJ_FLAG_LAYOUT_1 | LV_OBJ_FLAG_LAYOUT_2))) {
lv_obj_mark_layout_as_dirty(lv_obj_get_parent(obj));
}
if(f & LV_OBJ_FLAG_SCROLLABLE) {
lv_area_t hor_area, ver_area;
lv_obj_get_scrollbar_area(obj, &hor_area, &ver_area);
lv_obj_invalidate_area(obj, &hor_area);
lv_obj_invalidate_area(obj, &ver_area);
}
}
void lv_obj_clear_flag(lv_obj_t * obj, lv_obj_flag_t f)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
bool was_on_layout = lv_obj_is_layout_positioned(obj);
if(f & LV_OBJ_FLAG_SCROLLABLE) {
lv_area_t hor_area, ver_area;
lv_obj_get_scrollbar_area(obj, &hor_area, &ver_area);
lv_obj_invalidate_area(obj, &hor_area);
lv_obj_invalidate_area(obj, &ver_area);
}
obj->flags &= (~f);
if(f & LV_OBJ_FLAG_HIDDEN) {
lv_obj_invalidate(obj);
if(lv_obj_is_layout_positioned(obj)) {
lv_obj_mark_layout_as_dirty(lv_obj_get_parent(obj));
}
}
if((was_on_layout != lv_obj_is_layout_positioned(obj)) || (f & (LV_OBJ_FLAG_LAYOUT_1 | LV_OBJ_FLAG_LAYOUT_2))) {
lv_obj_mark_layout_as_dirty(lv_obj_get_parent(obj));
}
}
void lv_obj_add_state(lv_obj_t * obj, lv_state_t state)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_state_t new_state = obj->state | state;
if(obj->state != new_state) {
lv_obj_set_state(obj, new_state);
}
}
void lv_obj_clear_state(lv_obj_t * obj, lv_state_t state)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_state_t new_state = obj->state & (~state);
if(obj->state != new_state) {
lv_obj_set_state(obj, new_state);
}
}
/*=======================
* Getter functions
*======================*/
bool lv_obj_has_flag(const lv_obj_t * obj, lv_obj_flag_t f)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
return (obj->flags & f) == f ? true : false;
}
bool lv_obj_has_flag_any(const lv_obj_t * obj, lv_obj_flag_t f)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
return (obj->flags & f) ? true : false;
}
lv_state_t lv_obj_get_state(const lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
return obj->state;
}
bool lv_obj_has_state(const lv_obj_t * obj, lv_state_t state)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
return obj->state & state ? true : false;
}
void * lv_obj_get_group(const lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
if(obj->spec_attr) return obj->spec_attr->group_p;
else return NULL;
}
/*-------------------
* OTHER FUNCTIONS
*------------------*/
void lv_obj_allocate_spec_attr(lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
if(obj->spec_attr == NULL) {
static uint32_t x = 0;
x++;
obj->spec_attr = lv_mem_alloc(sizeof(_lv_obj_spec_attr_t));
LV_ASSERT_MALLOC(obj->spec_attr);
if(obj->spec_attr == NULL) return;
lv_memset_00(obj->spec_attr, sizeof(_lv_obj_spec_attr_t));
obj->spec_attr->scroll_dir = LV_DIR_ALL;
obj->spec_attr->scrollbar_mode = LV_SCROLLBAR_MODE_AUTO;
}
}
bool lv_obj_check_type(const lv_obj_t * obj, const lv_obj_class_t * class_p)
{
if(obj == NULL) return false;
return obj->class_p == class_p ? true : false;
}
bool lv_obj_has_class(const lv_obj_t * obj, const lv_obj_class_t * class_p)
{
const lv_obj_class_t * obj_class = obj->class_p;
while(obj_class) {
if(obj_class == class_p) return true;
obj_class = obj_class->base_class;
}
return false;
}
const lv_obj_class_t * lv_obj_get_class(const lv_obj_t * obj)
{
return obj->class_p;
}
bool lv_obj_is_valid(const lv_obj_t * obj)
{
lv_disp_t * disp = lv_disp_get_next(NULL);
while(disp) {
uint32_t i;
for(i = 0; i < disp->screen_cnt; i++) {
if(disp->screens[i] == obj) return true;
bool found = obj_valid_child(disp->screens[i], obj);
if(found) return true;
}
disp = lv_disp_get_next(disp);
}
return false;
}
/**********************
* STATIC FUNCTIONS
**********************/
static void lv_obj_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj)
{
LV_UNUSED(class_p);
LV_TRACE_OBJ_CREATE("begin");
lv_obj_t * parent = obj->parent;
if(parent) {
lv_coord_t sl = lv_obj_get_scroll_left(parent);
lv_coord_t st = lv_obj_get_scroll_top(parent);
obj->coords.y1 = parent->coords.y1 + lv_obj_get_style_pad_top(parent, LV_PART_MAIN) - st;
obj->coords.y2 = obj->coords.y1 - 1;
obj->coords.x1 = parent->coords.x1 + lv_obj_get_style_pad_left(parent, LV_PART_MAIN) - sl;
obj->coords.x2 = obj->coords.x1 - 1;
}
/*Set attributes*/
obj->flags = LV_OBJ_FLAG_CLICKABLE;
obj->flags |= LV_OBJ_FLAG_SNAPPABLE;
if(parent) obj->flags |= LV_OBJ_FLAG_PRESS_LOCK;
if(parent) obj->flags |= LV_OBJ_FLAG_SCROLL_CHAIN;
obj->flags |= LV_OBJ_FLAG_CLICK_FOCUSABLE;
obj->flags |= LV_OBJ_FLAG_SCROLLABLE;
obj->flags |= LV_OBJ_FLAG_SCROLL_ELASTIC;
obj->flags |= LV_OBJ_FLAG_SCROLL_MOMENTUM;
if(parent) obj->flags |= LV_OBJ_FLAG_GESTURE_BUBBLE;
LV_TRACE_OBJ_CREATE("finished");
}
static void lv_obj_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj)
{
LV_UNUSED(class_p);
_lv_event_mark_deleted(obj);
/*Remove all style*/
lv_obj_enable_style_refresh(false); /*No need to refresh the style because the object will be deleted*/
lv_obj_remove_style_all(obj);
lv_obj_enable_style_refresh(true);
/*Remove the animations from this object*/
lv_anim_del(obj, NULL);
/*Delete from the group*/
lv_group_t * group = lv_obj_get_group(obj);
if(group) lv_group_remove_obj(obj);
if(obj->spec_attr) {
if(obj->spec_attr->children) {
lv_mem_free(obj->spec_attr->children);
obj->spec_attr->children = NULL;
}
if(obj->spec_attr->event_dsc) {
lv_mem_free(obj->spec_attr->event_dsc);
obj->spec_attr->event_dsc = NULL;
}
lv_mem_free(obj->spec_attr);
obj->spec_attr = NULL;
}
}
static void lv_obj_draw(lv_event_t * e)
{
lv_event_code_t code = lv_event_get_code(e);
lv_obj_t * obj = lv_event_get_target(e);
if(code == LV_EVENT_COVER_CHECK) {
lv_cover_check_info_t * info = lv_event_get_param(e);
if(info->res == LV_COVER_RES_MASKED) return;
if(lv_obj_get_style_clip_corner(obj, LV_PART_MAIN)) {
info->res = LV_COVER_RES_MASKED;
return;
}
/*Most trivial test. Is the mask fully IN the object? If no it surely doesn't cover it*/
lv_coord_t r = lv_obj_get_style_radius(obj, LV_PART_MAIN);
lv_coord_t w = lv_obj_get_style_transform_width(obj, LV_PART_MAIN);
lv_coord_t h = lv_obj_get_style_transform_height(obj, LV_PART_MAIN);
lv_area_t coords;
lv_area_copy(&coords, &obj->coords);
coords.x1 -= w;
coords.x2 += w;
coords.y1 -= h;
coords.y2 += h;
if(_lv_area_is_in(info->area, &coords, r) == false) {
info->res = LV_COVER_RES_NOT_COVER;
return;
}
if(lv_obj_get_style_bg_opa(obj, LV_PART_MAIN) < LV_OPA_MAX) {
info->res = LV_COVER_RES_NOT_COVER;
return;
}
#if LV_DRAW_COMPLEX
if(lv_obj_get_style_blend_mode(obj, LV_PART_MAIN) != LV_BLEND_MODE_NORMAL) {
info->res = LV_COVER_RES_NOT_COVER;
return;
}
#endif
if(lv_obj_get_style_opa(obj, LV_PART_MAIN) < LV_OPA_MAX) {
info->res = LV_COVER_RES_NOT_COVER;
return;
}
info->res = LV_COVER_RES_COVER;
}
else if(code == LV_EVENT_DRAW_MAIN) {
const lv_area_t * clip_area = lv_event_get_param(e);
lv_draw_rect_dsc_t draw_dsc;
lv_draw_rect_dsc_init(&draw_dsc);
/*If the border is drawn later disable loading its properties*/
if(lv_obj_get_style_border_post(obj, LV_PART_MAIN)) {
draw_dsc.border_post = 1;
}
lv_obj_init_draw_rect_dsc(obj, LV_PART_MAIN, &draw_dsc);
lv_coord_t w = lv_obj_get_style_transform_width(obj, LV_PART_MAIN);
lv_coord_t h = lv_obj_get_style_transform_height(obj, LV_PART_MAIN);
lv_area_t coords;
lv_area_copy(&coords, &obj->coords);
coords.x1 -= w;
coords.x2 += w;
coords.y1 -= h;
coords.y2 += h;
lv_obj_draw_part_dsc_t part_dsc;
lv_obj_draw_dsc_init(&part_dsc, clip_area);
part_dsc.class_p = MY_CLASS;
part_dsc.type = LV_OBJ_DRAW_PART_RECTANGLE;
part_dsc.rect_dsc = &draw_dsc;
part_dsc.draw_area = &coords;
part_dsc.part = LV_PART_MAIN;
lv_event_send(obj, LV_EVENT_DRAW_PART_BEGIN, &part_dsc);
lv_draw_rect(&coords, clip_area, &draw_dsc);
lv_event_send(obj, LV_EVENT_DRAW_PART_END, &part_dsc);
#if LV_DRAW_COMPLEX
if(lv_obj_get_style_clip_corner(obj, LV_PART_MAIN)) {
/*If the radius is 0 the parent's coordinates will clip anyway*/
lv_coord_t r = lv_obj_get_style_radius(obj, LV_PART_MAIN);
if(r != 0) {
lv_draw_mask_radius_param_t * mp = lv_mem_buf_get(sizeof(lv_draw_mask_radius_param_t));
lv_draw_mask_radius_init(mp, &obj->coords, r, false);
/*Add the mask and use `obj+8` as custom id. Don't use `obj` directly because it might be used by the user*/
lv_draw_mask_add(mp, obj + 8);
}
}
#endif
}
else if(code == LV_EVENT_DRAW_POST) {
const lv_area_t * clip_area = lv_event_get_param(e);
draw_scrollbar(obj, clip_area);
#if LV_DRAW_COMPLEX
if(lv_obj_get_style_clip_corner(obj, LV_PART_MAIN)) {
lv_draw_mask_radius_param_t * param = lv_draw_mask_remove_custom(obj + 8);
if(param) {
lv_draw_mask_free_param(param);
lv_mem_buf_release(param);
}
}
#endif
/*If the border is drawn later disable loading other properties*/
if(lv_obj_get_style_border_post(obj, LV_PART_MAIN)) {
lv_draw_rect_dsc_t draw_dsc;
lv_draw_rect_dsc_init(&draw_dsc);
draw_dsc.bg_opa = LV_OPA_TRANSP;
draw_dsc.outline_opa = LV_OPA_TRANSP;
draw_dsc.shadow_opa = LV_OPA_TRANSP;
draw_dsc.bg_img_opa = LV_OPA_TRANSP;
lv_obj_init_draw_rect_dsc(obj, LV_PART_MAIN, &draw_dsc);
lv_coord_t w = lv_obj_get_style_transform_width(obj, LV_PART_MAIN);
lv_coord_t h = lv_obj_get_style_transform_height(obj, LV_PART_MAIN);
lv_area_t coords;
lv_area_copy(&coords, &obj->coords);
coords.x1 -= w;
coords.x2 += w;
coords.y1 -= h;
coords.y2 += h;
lv_obj_draw_part_dsc_t part_dsc;
lv_obj_draw_dsc_init(&part_dsc, clip_area);
part_dsc.class_p = MY_CLASS;
part_dsc.type = LV_OBJ_DRAW_PART_BORDER_POST;
part_dsc.rect_dsc = &draw_dsc;
part_dsc.draw_area = &coords;
part_dsc.part = LV_PART_MAIN;
lv_event_send(obj, LV_EVENT_DRAW_PART_BEGIN, &part_dsc);
lv_draw_rect(&coords, clip_area, &draw_dsc);
lv_event_send(obj, LV_EVENT_DRAW_PART_END, &part_dsc);
}
}
}
static void draw_scrollbar(lv_obj_t * obj, const lv_area_t * clip_area)
{
lv_area_t hor_area;
lv_area_t ver_area;
lv_obj_get_scrollbar_area(obj, &hor_area, &ver_area);
if(lv_area_get_size(&hor_area) <= 0 && lv_area_get_size(&ver_area) <= 0) return;
lv_draw_rect_dsc_t draw_dsc;
lv_res_t sb_res = scrollbar_init_draw_dsc(obj, &draw_dsc);
if(sb_res != LV_RES_OK) return;
lv_obj_draw_part_dsc_t part_dsc;
lv_obj_draw_dsc_init(&part_dsc, clip_area);
part_dsc.class_p = MY_CLASS;
part_dsc.type = LV_OBJ_DRAW_PART_SCROLLBAR;
part_dsc.rect_dsc = &draw_dsc;
part_dsc.part = LV_PART_SCROLLBAR;
if(lv_area_get_size(&hor_area) > 0) {
part_dsc.draw_area = &hor_area;
lv_event_send(obj, LV_EVENT_DRAW_PART_BEGIN, &part_dsc);
lv_draw_rect(&hor_area, clip_area, &draw_dsc);
lv_event_send(obj, LV_EVENT_DRAW_PART_END, &part_dsc);
}
if(lv_area_get_size(&ver_area) > 0) {
part_dsc.draw_area = &ver_area;
lv_event_send(obj, LV_EVENT_DRAW_PART_BEGIN, &part_dsc);
lv_draw_rect(&ver_area, clip_area, &draw_dsc);
lv_event_send(obj, LV_EVENT_DRAW_PART_END, &part_dsc);
}
}
/**
* Initialize the draw descriptor for the scrollbar
* @param obj pointer to an object
* @param dsc the draw descriptor to initialize
* @return LV_RES_OK: the scrollbar is visible; LV_RES_INV: the scrollbar is not visible
*/
static lv_res_t scrollbar_init_draw_dsc(lv_obj_t * obj, lv_draw_rect_dsc_t * dsc)
{
lv_draw_rect_dsc_init(dsc);
dsc->bg_opa = lv_obj_get_style_bg_opa(obj, LV_PART_SCROLLBAR);
if(dsc->bg_opa > LV_OPA_MIN) {
dsc->bg_color = lv_obj_get_style_bg_color(obj, LV_PART_SCROLLBAR);
}
dsc->border_opa = lv_obj_get_style_border_opa(obj, LV_PART_SCROLLBAR);
if(dsc->border_opa > LV_OPA_MIN) {
dsc->border_width = lv_obj_get_style_border_width(obj, LV_PART_SCROLLBAR);
if(dsc->border_width > 0) {
dsc->border_color = lv_obj_get_style_border_color(obj, LV_PART_SCROLLBAR);
}
else {
dsc->border_opa = LV_OPA_TRANSP;
}
}
#if LV_DRAW_COMPLEX
dsc->shadow_opa = lv_obj_get_style_shadow_opa(obj, LV_PART_SCROLLBAR);
if(dsc->shadow_opa > LV_OPA_MIN) {
dsc->shadow_width = lv_obj_get_style_shadow_width(obj, LV_PART_SCROLLBAR);
if(dsc->shadow_width > 0) {
dsc->shadow_spread = lv_obj_get_style_shadow_spread(obj, LV_PART_SCROLLBAR);
dsc->shadow_color = lv_obj_get_style_shadow_color(obj, LV_PART_SCROLLBAR);
}
else {
dsc->shadow_opa = LV_OPA_TRANSP;
}
}
lv_opa_t opa = lv_obj_get_style_opa(obj, LV_PART_SCROLLBAR);
if(opa < LV_OPA_MAX) {
dsc->bg_opa = (dsc->bg_opa * opa) >> 8;
dsc->border_opa = (dsc->bg_opa * opa) >> 8;
dsc->shadow_opa = (dsc->bg_opa * opa) >> 8;
}
if(dsc->bg_opa != LV_OPA_TRANSP || dsc->border_opa != LV_OPA_TRANSP || dsc->shadow_opa != LV_OPA_TRANSP) {
dsc->radius = lv_obj_get_style_radius(obj, LV_PART_SCROLLBAR);
return LV_RES_OK;
}
else {
return LV_RES_INV;
}
#else
if(dsc->bg_opa != LV_OPA_TRANSP || dsc->border_opa != LV_OPA_TRANSP) return LV_RES_OK;
else return LV_RES_INV;
#endif
}
static void lv_obj_event(const lv_obj_class_t * class_p, lv_event_t * e)
{
LV_UNUSED(class_p);
lv_event_code_t code = lv_event_get_code(e);
lv_obj_t * obj = lv_event_get_target(e);
if(code == LV_EVENT_PRESSED) {
lv_obj_add_state(obj, LV_STATE_PRESSED);
}
else if(code == LV_EVENT_RELEASED) {
lv_obj_clear_state(obj, LV_STATE_PRESSED);
void * param = lv_event_get_param(e);
/*Go the checked state if enabled*/
if(lv_indev_get_scroll_obj(param) == NULL && lv_obj_has_flag(obj, LV_OBJ_FLAG_CHECKABLE)) {
if(!(lv_obj_get_state(obj) & LV_STATE_CHECKED)) lv_obj_add_state(obj, LV_STATE_CHECKED);
else lv_obj_clear_state(obj, LV_STATE_CHECKED);
lv_res_t res = lv_event_send(obj, LV_EVENT_VALUE_CHANGED, NULL);
if(res != LV_RES_OK) return;
}
}
else if(code == LV_EVENT_PRESS_LOST) {
lv_obj_clear_state(obj, LV_STATE_PRESSED);
}
else if(code == LV_EVENT_STYLE_CHANGED) {
uint32_t child_cnt = lv_obj_get_child_cnt(obj);
for(uint32_t i = 0; i < child_cnt; i++) {
lv_obj_t * child = obj->spec_attr->children[i];
lv_obj_mark_layout_as_dirty(child);
}
}
else if(code == LV_EVENT_KEY) {
if(lv_obj_has_flag(obj, LV_OBJ_FLAG_CHECKABLE)) {
char c = *((char *)lv_event_get_param(e));
if(c == LV_KEY_RIGHT || c == LV_KEY_UP) {
lv_obj_add_state(obj, LV_STATE_CHECKED);
}
else if(c == LV_KEY_LEFT || c == LV_KEY_DOWN) {
lv_obj_clear_state(obj, LV_STATE_CHECKED);
}
/*With Enter LV_EVENT_RELEASED will send VALUE_CHANGE event*/
if(c != LV_KEY_ENTER) {
lv_res_t res = lv_event_send(obj, LV_EVENT_VALUE_CHANGED, NULL);
if(res != LV_RES_OK) return;
}
}
else if(lv_obj_has_flag(obj, LV_OBJ_FLAG_SCROLLABLE) && !lv_obj_is_editable(obj)) {
/*scroll by keypad or encoder*/
lv_anim_enable_t anim_enable = LV_ANIM_OFF;
lv_coord_t sl = lv_obj_get_scroll_left(obj);
lv_coord_t sr = lv_obj_get_scroll_right(obj);
char c = *((char *)lv_event_get_param(e));
if(c == LV_KEY_DOWN) {
/*use scroll_to_x/y functions to enforce scroll limits*/
lv_obj_scroll_to_y(obj, lv_obj_get_scroll_y(obj) + lv_obj_get_height(obj) / 4, anim_enable);
}
else if(c == LV_KEY_UP) {
lv_obj_scroll_to_y(obj, lv_obj_get_scroll_y(obj) - lv_obj_get_height(obj) / 4, anim_enable);
}
else if(c == LV_KEY_RIGHT) {
/*If the object can't be scrolled horizontally then scroll it vertically*/
if(!((lv_obj_get_scroll_dir(obj) & LV_DIR_HOR) && (sl > 0 || sr > 0)))
lv_obj_scroll_to_y(obj, lv_obj_get_scroll_y(obj) + lv_obj_get_height(obj) / 4, anim_enable);
else
lv_obj_scroll_to_x(obj, lv_obj_get_scroll_x(obj) + lv_obj_get_width(obj) / 4, anim_enable);
}
else if(c == LV_KEY_LEFT) {
/*If the object can't be scrolled horizontally then scroll it vertically*/
if(!((lv_obj_get_scroll_dir(obj) & LV_DIR_HOR) && (sl > 0 || sr > 0)))
lv_obj_scroll_to_y(obj, lv_obj_get_scroll_y(obj) - lv_obj_get_height(obj) / 4, anim_enable);
else
lv_obj_scroll_to_x(obj, lv_obj_get_scroll_x(obj) - lv_obj_get_width(obj) / 4, anim_enable);
}
}
}
else if(code == LV_EVENT_FOCUSED) {
if(lv_obj_has_flag(obj, LV_OBJ_FLAG_SCROLL_ON_FOCUS)) {
lv_obj_scroll_to_view_recursive(obj, LV_ANIM_ON);
}
bool editing = false;
editing = lv_group_get_editing(lv_obj_get_group(obj));
lv_state_t state = LV_STATE_FOCUSED;
/* Use the indev for then indev handler.
* But if the obj was focused manually it returns NULL so try to
* use the indev from the event*/
lv_indev_t * indev = lv_indev_get_act();
if(indev == NULL) indev = lv_event_get_indev(e);
lv_indev_type_t indev_type = lv_indev_get_type(indev);
if(indev_type == LV_INDEV_TYPE_KEYPAD || indev_type == LV_INDEV_TYPE_ENCODER) state |= LV_STATE_FOCUS_KEY;
if(editing) {
state |= LV_STATE_EDITED;
lv_obj_add_state(obj, state);
}
else {
lv_obj_add_state(obj, state);
lv_obj_clear_state(obj, LV_STATE_EDITED);
}
}
else if(code == LV_EVENT_SCROLL_BEGIN) {
lv_obj_add_state(obj, LV_STATE_SCROLLED);
}
else if(code == LV_EVENT_SCROLL_END) {
lv_obj_clear_state(obj, LV_STATE_SCROLLED);
if(lv_obj_get_scrollbar_mode(obj) == LV_SCROLLBAR_MODE_ACTIVE) {
lv_area_t hor_area, ver_area;
lv_obj_get_scrollbar_area(obj, &hor_area, &ver_area);
lv_obj_invalidate_area(obj, &hor_area);
lv_obj_invalidate_area(obj, &ver_area);
}
}
else if(code == LV_EVENT_DEFOCUSED) {
lv_obj_clear_state(obj, LV_STATE_FOCUSED | LV_STATE_EDITED | LV_STATE_FOCUS_KEY);
}
else if(code == LV_EVENT_SIZE_CHANGED) {
lv_coord_t align = lv_obj_get_style_align(obj, LV_PART_MAIN);
uint16_t layout = lv_obj_get_style_layout(obj, LV_PART_MAIN);
if(layout || align) {
lv_obj_mark_layout_as_dirty(obj);
}
uint32_t i;
uint32_t child_cnt = lv_obj_get_child_cnt(obj);
for(i = 0; i < child_cnt; i++) {
lv_obj_t * child = obj->spec_attr->children[i];
lv_obj_mark_layout_as_dirty(child);
}
}
else if(code == LV_EVENT_CHILD_CHANGED) {
lv_coord_t w = lv_obj_get_style_width(obj, LV_PART_MAIN);
lv_coord_t h = lv_obj_get_style_height(obj, LV_PART_MAIN);
lv_coord_t align = lv_obj_get_style_align(obj, LV_PART_MAIN);
uint16_t layout = lv_obj_get_style_layout(obj, LV_PART_MAIN);
if(layout || align || w == LV_SIZE_CONTENT || h == LV_SIZE_CONTENT) {
lv_obj_mark_layout_as_dirty(obj);
}
}
else if(code == LV_EVENT_REFR_EXT_DRAW_SIZE) {
lv_coord_t * s = lv_event_get_param(e);
lv_coord_t d = lv_obj_calculate_ext_draw_size(obj, LV_PART_MAIN);
*s = LV_MAX(*s, d);
}
else if(code == LV_EVENT_DRAW_MAIN || code == LV_EVENT_DRAW_POST || code == LV_EVENT_COVER_CHECK) {
lv_obj_draw(e);
}
}
/**
* Set the state (fully overwrite) of an object.
* If specified in the styles, transition animations will be started from the previous state to the current.
* @param obj pointer to an object
* @param state the new state
*/
static void lv_obj_set_state(lv_obj_t * obj, lv_state_t new_state)
{
if(obj->state == new_state) return;
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_state_t prev_state = obj->state;
obj->state = new_state;
_lv_style_state_cmp_t cmp_res = _lv_obj_style_state_compare(obj, prev_state, new_state);
/*If there is no difference in styles there is nothing else to do*/
if(cmp_res == _LV_STYLE_STATE_CMP_SAME) return;
_lv_obj_style_transition_dsc_t * ts = lv_mem_buf_get(sizeof(_lv_obj_style_transition_dsc_t) * STYLE_TRANSITION_MAX);
lv_memset_00(ts, sizeof(_lv_obj_style_transition_dsc_t) * STYLE_TRANSITION_MAX);
uint32_t tsi = 0;
uint32_t i;
for(i = 0; i < obj->style_cnt && tsi < STYLE_TRANSITION_MAX; i++) {
_lv_obj_style_t * obj_style = &obj->styles[i];
lv_state_t state_act = lv_obj_style_get_selector_state(obj->styles[i].selector);
lv_part_t part_act = lv_obj_style_get_selector_part(obj->styles[i].selector);
if(state_act & (~new_state)) continue; /*Skip unrelated styles*/
if(obj_style->is_trans) continue;
lv_style_value_t v;
if(lv_style_get_prop_inlined(obj_style->style, LV_STYLE_TRANSITION, &v) == false) continue;
const lv_style_transition_dsc_t * tr = v.ptr;
/*Add the props to the set if not added yet or added but with smaller weight*/
uint32_t j;
for(j = 0; tr->props[j] != 0 && tsi < STYLE_TRANSITION_MAX; j++) {
uint32_t t;
for(t = 0; t < tsi; t++) {
lv_style_selector_t selector = ts[t].selector;
lv_state_t state_ts = lv_obj_style_get_selector_state(selector);
lv_part_t part_ts = lv_obj_style_get_selector_part(selector);
if(ts[t].prop == tr->props[j] && part_ts == part_act && state_ts >= state_act) break;
}
/*If not found add it*/
if(t == tsi) {
ts[tsi].time = tr->time;
ts[tsi].delay = tr->delay;
ts[tsi].path_cb = tr->path_xcb;
ts[tsi].prop = tr->props[j];
#if LV_USE_USER_DATA
ts[tsi].user_data = tr->user_data;
#endif
ts[tsi].selector = obj_style->selector;
tsi++;
}
}
}
for(i = 0; i < tsi; i++) {
lv_part_t part_act = lv_obj_style_get_selector_part(ts[i].selector);
_lv_obj_style_create_transition(obj, part_act, prev_state, new_state, &ts[i]);
}
lv_mem_buf_release(ts);
if(cmp_res == _LV_STYLE_STATE_CMP_DIFF_REDRAW) {
lv_obj_invalidate(obj);
}
else if(cmp_res == _LV_STYLE_STATE_CMP_DIFF_LAYOUT) {
lv_obj_refresh_style(obj, LV_PART_ANY, LV_STYLE_PROP_ANY);
}
else if(cmp_res == _LV_STYLE_STATE_CMP_DIFF_DRAW_PAD) {
lv_obj_invalidate(obj);
lv_obj_refresh_ext_draw_size(obj);
}
}
static bool obj_valid_child(const lv_obj_t * parent, const lv_obj_t * obj_to_find)
{
/*Check all children of `parent`*/
uint32_t child_cnt = 0;
if(parent->spec_attr) child_cnt = parent->spec_attr->child_cnt;
uint32_t i;
for(i = 0; i < child_cnt; i++) {
lv_obj_t * child = parent->spec_attr->children[i];
if(child == obj_to_find) {
return true;
}
/*Check the children*/
bool found = obj_valid_child(child, obj_to_find);
if(found) {
return true;
}
}
return false;
}
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_obj.c | C | apache-2.0 | 30,874 |
/**
* @file lv_obj.h
*
*/
#ifndef LV_OBJ_H
#define LV_OBJ_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "../lv_conf_internal.h"
#include <stddef.h>
#include <stdbool.h>
#include "../misc/lv_style.h"
#include "../misc/lv_types.h"
#include "../misc/lv_area.h"
#include "../misc/lv_color.h"
#include "../misc/lv_assert.h"
#include "../hal/lv_hal.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
struct _lv_obj_t;
/**
* Possible states of a widget.
* OR-ed values are possible
*/
enum {
LV_STATE_DEFAULT = 0x0000,
LV_STATE_CHECKED = 0x0001,
LV_STATE_FOCUSED = 0x0002,
LV_STATE_FOCUS_KEY = 0x0004,
LV_STATE_EDITED = 0x0008,
LV_STATE_HOVERED = 0x0010,
LV_STATE_PRESSED = 0x0020,
LV_STATE_SCROLLED = 0x0040,
LV_STATE_DISABLED = 0x0080,
LV_STATE_USER_1 = 0x1000,
LV_STATE_USER_2 = 0x2000,
LV_STATE_USER_3 = 0x4000,
LV_STATE_USER_4 = 0x8000,
LV_STATE_ANY = 0xFFFF, /**< Special value can be used in some functions to target all states*/
};
typedef uint16_t lv_state_t;
/**
* The possible parts of widgets.
* The parts can be considered as the internal building block of the widgets.
* E.g. slider = background + indicator + knob
* Note every part is used by every widget
*/
enum {
LV_PART_MAIN = 0x000000, /**< A background like rectangle*/
LV_PART_SCROLLBAR = 0x010000, /**< The scrollbar(s)*/
LV_PART_INDICATOR = 0x020000, /**< Indicator, e.g. for slider, bar, switch, or the tick box of the checkbox*/
LV_PART_KNOB = 0x030000, /**< Like handle to grab to adjust the value*/
LV_PART_SELECTED = 0x040000, /**< Indicate the currently selected option or section*/
LV_PART_ITEMS = 0x050000, /**< Used if the widget has multiple similar elements (e.g. table cells)*/
LV_PART_TICKS = 0x060000, /**< Ticks on scale e.g. for a chart or meter*/
LV_PART_CURSOR = 0x070000, /**< Mark a specific place e.g. for text area's cursor or on a chart*/
LV_PART_CUSTOM_FIRST = 0x080000, /**< Extension point for custom widgets*/
LV_PART_ANY = 0x0F0000, /**< Special value can be used in some functions to target all parts*/
};
typedef uint32_t lv_part_t;
/**
* On/Off features controlling the object's behavior.
* OR-ed values are possible
*/
enum {
LV_OBJ_FLAG_HIDDEN = (1L << 0), /**< Make the object hidden. (Like it wasn't there at all)*/
LV_OBJ_FLAG_CLICKABLE = (1L << 1), /**< Make the object clickable by the input devices*/
LV_OBJ_FLAG_CLICK_FOCUSABLE = (1L << 2), /**< Add focused state to the object when clicked*/
LV_OBJ_FLAG_CHECKABLE = (1L << 3), /**< Toggle checked state when the object is clicked*/
LV_OBJ_FLAG_SCROLLABLE = (1L << 4), /**< Make the object scrollable*/
LV_OBJ_FLAG_SCROLL_ELASTIC = (1L << 5), /**< Allow scrolling inside but with slower speed*/
LV_OBJ_FLAG_SCROLL_MOMENTUM = (1L << 6), /**< Make the object scroll further when "thrown"*/
LV_OBJ_FLAG_SCROLL_ONE = (1L << 7), /**< Allow scrolling only one snappable children*/
LV_OBJ_FLAG_SCROLL_CHAIN = (1L << 8), /**< Allow propagating the scroll to a parent*/
LV_OBJ_FLAG_SCROLL_ON_FOCUS = (1L << 9), /**< Automatically scroll object to make it visible when focused*/
LV_OBJ_FLAG_SNAPPABLE = (1L << 10), /**< If scroll snap is enabled on the parent it can snap to this object*/
LV_OBJ_FLAG_PRESS_LOCK = (1L << 11), /**< Keep the object pressed even if the press slid from the object*/
LV_OBJ_FLAG_EVENT_BUBBLE = (1L << 12), /**< Propagate the events to the parent too*/
LV_OBJ_FLAG_GESTURE_BUBBLE = (1L << 13), /**< Propagate the gestures to the parent*/
LV_OBJ_FLAG_ADV_HITTEST = (1L << 14), /**< Allow performing more accurate hit (click) test. E.g. consider rounded corners.*/
LV_OBJ_FLAG_IGNORE_LAYOUT = (1L << 15), /**< Make the object position-able by the layouts*/
LV_OBJ_FLAG_FLOATING = (1L << 16), /**< Do not scroll the object when the parent scrolls and ignore layout*/
LV_OBJ_FLAG_LAYOUT_1 = (1L << 23), /**< Custom flag, free to use by layouts*/
LV_OBJ_FLAG_LAYOUT_2 = (1L << 24), /**< Custom flag, free to use by layouts*/
LV_OBJ_FLAG_WIDGET_1 = (1L << 25), /**< Custom flag, free to use by widget*/
LV_OBJ_FLAG_WIDGET_2 = (1L << 26), /**< Custom flag, free to use by widget*/
LV_OBJ_FLAG_USER_1 = (1L << 27), /**< Custom flag, free to use by user*/
LV_OBJ_FLAG_USER_2 = (1L << 28), /**< Custom flag, free to use by user*/
LV_OBJ_FLAG_USER_3 = (1L << 29), /**< Custom flag, free to use by user*/
LV_OBJ_FLAG_USER_4 = (1L << 30), /**< Custom flag, free to use by user*/
};
typedef uint32_t lv_obj_flag_t;
/**
* `type` field in `lv_obj_draw_part_dsc_t` if `class_p = lv_obj_class`
* Used in `LV_EVENT_DRAW_PART_BEGIN` and `LV_EVENT_DRAW_PART_END`
*/
typedef enum {
LV_OBJ_DRAW_PART_RECTANGLE, /**< The main rectangle*/
LV_OBJ_DRAW_PART_BORDER_POST,/**< The border if style_border_post = true*/
LV_OBJ_DRAW_PART_SCROLLBAR, /**< The scrollbar*/
} lv_obj_draw_part_type_t;
#include "lv_obj_tree.h"
#include "lv_obj_pos.h"
#include "lv_obj_scroll.h"
#include "lv_obj_style.h"
#include "lv_obj_draw.h"
#include "lv_obj_class.h"
#include "lv_event.h"
#include "lv_group.h"
/**
* Make the base object's class publicly available.
*/
extern const lv_obj_class_t lv_obj_class;
/**
* Special, rarely used attributes.
* They are allocated automatically if any elements is set.
*/
typedef struct {
struct _lv_obj_t ** children; /**< Store the pointer of the children in an array.*/
uint32_t child_cnt; /**< Number of children*/
lv_group_t * group_p;
struct _lv_event_dsc_t * event_dsc; /**< Dynamically allocated event callback and user data array*/
lv_point_t scroll; /**< The current X/Y scroll offset*/
lv_coord_t ext_click_pad; /**< Extra click padding in all direction*/
lv_coord_t ext_draw_size; /**< EXTend the size in every direction for drawing.*/
lv_scrollbar_mode_t scrollbar_mode : 2; /**< How to display scrollbars*/
lv_scroll_snap_t scroll_snap_x : 2; /**< Where to align the snappable children horizontally*/
lv_scroll_snap_t scroll_snap_y : 2; /**< Where to align the snappable children vertically*/
lv_dir_t scroll_dir : 4; /**< The allowed scroll direction(s)*/
uint8_t event_dsc_cnt; /**< Number of event callbacks stored in `event_dsc` array*/
} _lv_obj_spec_attr_t;
typedef struct _lv_obj_t {
const lv_obj_class_t * class_p;
struct _lv_obj_t * parent;
_lv_obj_spec_attr_t * spec_attr;
_lv_obj_style_t * styles;
#if LV_USE_USER_DATA
void * user_data;
#endif
lv_area_t coords;
lv_obj_flag_t flags;
lv_state_t state;
uint16_t layout_inv : 1;
uint16_t scr_layout_inv : 1;
uint16_t skip_trans : 1;
uint16_t style_cnt : 6;
uint16_t h_layout : 1;
uint16_t w_layout : 1;
} lv_obj_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Initialize LVGL library.
* Should be called before any other LVGL related function.
*/
void lv_init(void);
#if LV_ENABLE_GC || !LV_MEM_CUSTOM || LV_USE_GPU_SDL
/**
* Deinit the 'lv' library
* Currently only implemented when not using custom allocators, or GC is enabled.
*/
void lv_deinit(void);
#endif
/**
* Returns whether the 'lv' library is currently initialized
*/
bool lv_is_initialized(void);
/**
* Create a base object (a rectangle)
* @param parent pointer to a parent object. If NULL then a screen will be created.
* @return pointer to the new object
*/
lv_obj_t * lv_obj_create(lv_obj_t * parent);
/*=====================
* Setter functions
*====================*/
/**
* Set one or more flags
* @param obj pointer to an object
* @param f R-ed values from `lv_obj_flag_t` to set.
*/
void lv_obj_add_flag(lv_obj_t * obj, lv_obj_flag_t f);
/**
* Clear one or more flags
* @param obj pointer to an object
* @param f OR-ed values from `lv_obj_flag_t` to set.
*/
void lv_obj_clear_flag(lv_obj_t * obj, lv_obj_flag_t f);
/**
* Add one or more states to the object. The other state bits will remain unchanged.
* If specified in the styles, transition animation will be started from the previous state to the current.
* @param obj pointer to an object
* @param state the states to add. E.g `LV_STATE_PRESSED | LV_STATE_FOCUSED`
*/
void lv_obj_add_state(lv_obj_t * obj, lv_state_t state);
/**
* Remove one or more states to the object. The other state bits will remain unchanged.
* If specified in the styles, transition animation will be started from the previous state to the current.
* @param obj pointer to an object
* @param state the states to add. E.g `LV_STATE_PRESSED | LV_STATE_FOCUSED`
*/
void lv_obj_clear_state(lv_obj_t * obj, lv_state_t state);
/**
* Set the user_data field of the object
* @param obj pointer to an object
* @param user_data pointer to the new user_data.
*/
#if LV_USE_USER_DATA
static inline void lv_obj_set_user_data(lv_obj_t * obj, void * user_data)
{
obj->user_data = user_data;
}
#endif
/*=======================
* Getter functions
*======================*/
/**
* Check if a given flag or all the given flags are set on an object.
* @param obj pointer to an object
* @param f the flag(s) to check (OR-ed values can be used)
* @return true: all flags are set; false: not all flags are set
*/
bool lv_obj_has_flag(const lv_obj_t * obj, lv_obj_flag_t f);
/**
* Check if a given flag or any of the flags are set on an object.
* @param obj pointer to an object
* @param f the flag(s) to check (OR-ed values can be used)
* @return true: at lest one flag flag is set; false: none of the flags are set
*/
bool lv_obj_has_flag_any(const lv_obj_t * obj, lv_obj_flag_t f);
/**
* Get the state of an object
* @param obj pointer to an object
* @return the state (OR-ed values from `lv_state_t`)
*/
lv_state_t lv_obj_get_state(const lv_obj_t * obj);
/**
* Check if the object is in a given state or not.
* @param obj pointer to an object
* @param state a state or combination of states to check
* @return true: `obj` is in `state`; false: `obj` is not in `state`
*/
bool lv_obj_has_state(const lv_obj_t * obj, lv_state_t state);
/**
* Get the group of the object
* @param obj pointer to an object
* @return the pointer to group of the object
*/
void * lv_obj_get_group(const lv_obj_t * obj);
/**
* Get the user_data field of the object
* @param obj pointer to an object
* @return the pointer to the user_data of the object
*/
#if LV_USE_USER_DATA
static inline void * lv_obj_get_user_data(lv_obj_t * obj)
{
return obj->user_data;
}
#endif
/*=======================
* Other functions
*======================*/
/**
* Allocate special data for an object if not allocated yet.
* @param obj pointer to an object
*/
void lv_obj_allocate_spec_attr(lv_obj_t * obj);
/**
* Check the type of obj.
* @param obj pointer to an object
* @param class_p a class to check (e.g. `lv_slider_class`)
* @return true: `class_p` is the `obj` class.
*/
bool lv_obj_check_type(const lv_obj_t * obj, const lv_obj_class_t * class_p);
/**
* Check if any object has a given class (type).
* It checks the ancestor classes too.
* @param obj pointer to an object
* @param class_p a class to check (e.g. `lv_slider_class`)
* @return true: `obj` has the given class
*/
bool lv_obj_has_class(const lv_obj_t * obj, const lv_obj_class_t * class_p);
/**
* Get the class (type) of the object
* @param obj pointer to an object
* @return the class (type) of the object
*/
const lv_obj_class_t * lv_obj_get_class(const lv_obj_t * obj);
/**
* Check if any object is still "alive".
* @param obj pointer to an object
* @return true: valid
*/
bool lv_obj_is_valid(const lv_obj_t * obj);
/**
* Scale the given number of pixels (a distance or size) relative to a 160 DPI display
* considering the DPI of the `obj`'s display.
* It ensures that e.g. `lv_dpx(100)` will have the same physical size regardless to the
* DPI of the display.
* @param obj an object whose display's dpi should be considered
* @param n the number of pixels to scale
* @return `n x current_dpi/160`
*/
static inline lv_coord_t lv_obj_dpx(const lv_obj_t * obj, lv_coord_t n)
{
return _LV_DPX_CALC(lv_disp_get_dpi(lv_obj_get_disp(obj)), n);
}
/**********************
* MACROS
**********************/
#if LV_USE_ASSERT_OBJ
# define LV_ASSERT_OBJ(obj_p, obj_class) \
LV_ASSERT_MSG(obj_p != NULL, "The object is NULL"); \
LV_ASSERT_MSG(lv_obj_has_class(obj_p, obj_class) == true, "Incompatible object type."); \
LV_ASSERT_MSG(lv_obj_is_valid(obj_p) == true, "The object is invalid, deleted or corrupted?");
# else
# define LV_ASSERT_OBJ(obj_p, obj_class) do{}while(0)
#endif
#if LV_USE_LOG && LV_LOG_TRACE_OBJ_CREATE
# define LV_TRACE_OBJ_CREATE(...) LV_LOG_TRACE(__VA_ARGS__)
#else
# define LV_TRACE_OBJ_CREATE(...)
#endif
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_OBJ_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_obj.h | C | apache-2.0 | 13,657 |
/**
* @file lv_obj_class.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_obj.h"
#include "lv_theme.h"
/*********************
* DEFINES
*********************/
#define MY_CLASS &lv_obj_class
/**********************
* TYPEDEFS
**********************/
/**********************
* GLOBAL PROTOTYPES
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static void lv_obj_construct(lv_obj_t * obj);
static uint32_t get_instance_size(const lv_obj_class_t * class_p);
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
lv_obj_t * lv_obj_class_create_obj(const lv_obj_class_t * class_p, lv_obj_t * parent)
{
LV_TRACE_OBJ_CREATE("Creating object with %p class on %p parent", (void *)class_p, (void *)parent);
uint32_t s = get_instance_size(class_p);
lv_obj_t * obj = lv_mem_alloc(s);
if(obj == NULL) return NULL;
lv_memset_00(obj, s);
obj->class_p = class_p;
obj->parent = parent;
/*Create a screen*/
if(parent == NULL) {
LV_TRACE_OBJ_CREATE("creating a screen");
lv_disp_t * disp = lv_disp_get_default();
if(!disp) {
LV_LOG_WARN("No display created to so far. No place to assign the new screen");
return NULL;
}
if(disp->screens == NULL) {
disp->screens = lv_mem_alloc(sizeof(lv_obj_t *));
disp->screens[0] = obj;
disp->screen_cnt = 1;
}
else {
disp->screen_cnt++;
disp->screens = lv_mem_realloc(disp->screens, sizeof(lv_obj_t *) * disp->screen_cnt);
disp->screens[disp->screen_cnt - 1] = obj;
}
/*Set coordinates to full screen size*/
obj->coords.x1 = 0;
obj->coords.y1 = 0;
obj->coords.x2 = lv_disp_get_hor_res(NULL) - 1;
obj->coords.y2 = lv_disp_get_ver_res(NULL) - 1;
}
/*Create a normal object*/
else {
LV_TRACE_OBJ_CREATE("creating normal object");
LV_ASSERT_OBJ(parent, MY_CLASS);
if(parent->spec_attr == NULL) {
lv_obj_allocate_spec_attr(parent);
}
if(parent->spec_attr->children == NULL) {
parent->spec_attr->children = lv_mem_alloc(sizeof(lv_obj_t *));
parent->spec_attr->children[0] = obj;
parent->spec_attr->child_cnt = 1;
}
else {
parent->spec_attr->child_cnt++;
parent->spec_attr->children = lv_mem_realloc(parent->spec_attr->children,
sizeof(lv_obj_t *) * parent->spec_attr->child_cnt);
parent->spec_attr->children[parent->spec_attr->child_cnt - 1] = obj;
}
}
return obj;
}
void lv_obj_class_init_obj(lv_obj_t * obj)
{
lv_obj_mark_layout_as_dirty(obj);
lv_obj_enable_style_refresh(false);
lv_theme_apply(obj);
lv_obj_construct(obj);
lv_obj_enable_style_refresh(true);
lv_obj_refresh_style(obj, LV_PART_ANY, LV_STYLE_PROP_ANY);
lv_obj_refresh_self_size(obj);
lv_group_t * def_group = lv_group_get_default();
if(def_group && lv_obj_is_group_def(obj)) {
lv_group_add_obj(def_group, obj);
}
lv_obj_t * parent = lv_obj_get_parent(obj);
if(parent) {
/*Call the ancestor's event handler to the parent to notify it about the new child.
*Also triggers layout update*/
lv_event_send(parent, LV_EVENT_CHILD_CHANGED, obj);
lv_event_send(parent, LV_EVENT_CHILD_CREATED, obj);
/*Invalidate the area if not screen created*/
lv_obj_invalidate(obj);
}
}
void _lv_obj_destruct(lv_obj_t * obj)
{
if(obj->class_p->destructor_cb) obj->class_p->destructor_cb(obj->class_p, obj);
if(obj->class_p->base_class) {
/*Don't let the descendant methods run during destructing the ancestor type*/
obj->class_p = obj->class_p->base_class;
/*Call the base class's destructor too*/
_lv_obj_destruct(obj);
}
}
bool lv_obj_is_editable(lv_obj_t * obj)
{
const lv_obj_class_t * class_p = obj->class_p;
/*Find a base in which editable is set*/
while(class_p && class_p->editable == LV_OBJ_CLASS_EDITABLE_INHERIT) class_p = class_p->base_class;
if(class_p == NULL) return false;
return class_p->editable == LV_OBJ_CLASS_EDITABLE_TRUE ? true : false;
}
bool lv_obj_is_group_def(lv_obj_t * obj)
{
const lv_obj_class_t * class_p = obj->class_p;
/*Find a base in which group_def is set*/
while(class_p && class_p->group_def == LV_OBJ_CLASS_GROUP_DEF_INHERIT) class_p = class_p->base_class;
if(class_p == NULL) return false;
return class_p->group_def == LV_OBJ_CLASS_GROUP_DEF_TRUE ? true : false;
}
/**********************
* STATIC FUNCTIONS
**********************/
static void lv_obj_construct(lv_obj_t * obj)
{
const lv_obj_class_t * original_class_p = obj->class_p;
if(obj->class_p->base_class) {
/*Don't let the descendant methods run during constructing the ancestor type*/
obj->class_p = obj->class_p->base_class;
/*Construct the base first*/
lv_obj_construct(obj);
}
/*Restore the original class*/
obj->class_p = original_class_p;
if(obj->class_p->constructor_cb) obj->class_p->constructor_cb(obj->class_p, obj);
}
static uint32_t get_instance_size(const lv_obj_class_t * class_p)
{
/*Find a base in which instance size is set*/
const lv_obj_class_t * base = class_p;
while(base && base->instance_size == 0) base = base->base_class;
if(base == NULL) return 0; /*Never happens: set at least in `lv_obj` class*/
return base->instance_size;
}
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_obj_class.c | C | apache-2.0 | 5,835 |
/**
* @file lv_obj_class.h
*
*/
#ifndef LV_OBJ_CLASS_H
#define LV_OBJ_CLASS_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include <stdint.h>
#include <stdbool.h>
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
struct _lv_obj_t;
struct _lv_obj_class_t;
struct _lv_event_t;
typedef enum {
LV_OBJ_CLASS_EDITABLE_INHERIT, /**< Check the base class. Must have 0 value to let zero initialized class inherit*/
LV_OBJ_CLASS_EDITABLE_TRUE,
LV_OBJ_CLASS_EDITABLE_FALSE,
} lv_obj_class_editable_t;
typedef enum {
LV_OBJ_CLASS_GROUP_DEF_INHERIT, /**< Check the base class. Must have 0 value to let zero initialized class inherit*/
LV_OBJ_CLASS_GROUP_DEF_TRUE,
LV_OBJ_CLASS_GROUP_DEF_FALSE,
} lv_obj_class_group_def_t;
typedef void (*lv_obj_class_event_cb_t)(struct _lv_obj_class_t * class_p, struct _lv_event_t * e);
/**
* Describe the common methods of every object.
* Similar to a C++ class.
*/
typedef struct _lv_obj_class_t {
const struct _lv_obj_class_t * base_class;
void (*constructor_cb)(const struct _lv_obj_class_t * class_p, struct _lv_obj_t * obj);
void (*destructor_cb)(const struct _lv_obj_class_t * class_p, struct _lv_obj_t * obj);
#if LV_USE_USER_DATA
void * user_data;
#endif
void (*event_cb)(const struct _lv_obj_class_t * class_p,
struct _lv_event_t * e); /**< Widget type specific event function*/
lv_coord_t width_def;
lv_coord_t height_def;
uint32_t editable : 2; /**< Value from ::lv_obj_class_editable_t*/
uint32_t group_def : 2; /**< Value from ::lv_obj_class_group_def_t*/
uint32_t instance_size : 16;
} lv_obj_class_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Create an object form a class descriptor
* @param class_p pointer to a class
* @param parent pointer to an object where the new object should be created
* @return pointer to the created object
*/
struct _lv_obj_t * lv_obj_class_create_obj(const struct _lv_obj_class_t * class_p, struct _lv_obj_t * parent);
void lv_obj_class_init_obj(struct _lv_obj_t * obj);
void _lv_obj_destruct(struct _lv_obj_t * obj);
bool lv_obj_is_editable(struct _lv_obj_t * obj);
bool lv_obj_is_group_def(struct _lv_obj_t * obj);
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_OBJ_CLASS_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_obj_class.h | C | apache-2.0 | 2,554 |
/**
* @file lv_obj_draw.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_obj_draw.h"
#include "lv_obj.h"
#include "lv_disp.h"
#include "lv_indev.h"
/*********************
* DEFINES
*********************/
#define MY_CLASS &lv_obj_class
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
void lv_obj_init_draw_rect_dsc(lv_obj_t * obj, uint32_t part, lv_draw_rect_dsc_t * draw_dsc)
{
#if LV_DRAW_COMPLEX
draw_dsc->radius = lv_obj_get_style_radius(obj, part);
lv_opa_t main_opa = part != LV_PART_MAIN ? lv_obj_get_style_opa(obj, part) : LV_OPA_COVER;
lv_opa_t opa = lv_obj_get_style_opa(obj, part);
if(opa <= LV_OPA_MIN || main_opa <= LV_OPA_MIN) {
draw_dsc->bg_opa = LV_OPA_TRANSP;
draw_dsc->border_opa = LV_OPA_TRANSP;
draw_dsc->shadow_opa = LV_OPA_TRANSP;
draw_dsc->outline_opa = LV_OPA_TRANSP;
return;
}
draw_dsc->blend_mode = lv_obj_get_style_blend_mode(obj, part);
if(draw_dsc->bg_opa != LV_OPA_TRANSP) {
draw_dsc->bg_opa = lv_obj_get_style_bg_opa(obj, part);
if(draw_dsc->bg_opa > LV_OPA_MIN) {
draw_dsc->bg_color = lv_obj_get_style_bg_color_filtered(obj, part);
draw_dsc->bg_grad_dir = lv_obj_get_style_bg_grad_dir(obj, part);
if(draw_dsc->bg_grad_dir != LV_GRAD_DIR_NONE) {
draw_dsc->bg_grad_color = lv_obj_get_style_bg_grad_color_filtered(obj, part);
draw_dsc->bg_main_color_stop = lv_obj_get_style_bg_main_stop(obj, part);
draw_dsc->bg_grad_color_stop = lv_obj_get_style_bg_grad_stop(obj, part);
}
}
}
draw_dsc->border_width = lv_obj_get_style_border_width(obj, part);
if(draw_dsc->border_width) {
if(draw_dsc->border_opa != LV_OPA_TRANSP) {
draw_dsc->border_opa = lv_obj_get_style_border_opa(obj, part);
if(draw_dsc->border_opa > LV_OPA_MIN) {
draw_dsc->border_side = lv_obj_get_style_border_side(obj, part);
draw_dsc->border_color = lv_obj_get_style_border_color_filtered(obj, part);
}
}
}
draw_dsc->outline_width = lv_obj_get_style_outline_width(obj, part);
if(draw_dsc->outline_width) {
if(draw_dsc->outline_opa != LV_OPA_TRANSP) {
draw_dsc->outline_opa = lv_obj_get_style_outline_opa(obj, part);
if(draw_dsc->outline_opa > LV_OPA_MIN) {
draw_dsc->outline_pad = lv_obj_get_style_outline_pad(obj, part);
draw_dsc->outline_color = lv_obj_get_style_outline_color_filtered(obj, part);
}
}
}
if(draw_dsc->bg_img_opa != LV_OPA_TRANSP) {
draw_dsc->bg_img_src = lv_obj_get_style_bg_img_src(obj, part);
if(draw_dsc->bg_img_src) {
draw_dsc->bg_img_opa = lv_obj_get_style_bg_img_opa(obj, part);
if(draw_dsc->bg_img_opa > LV_OPA_MIN) {
if(lv_img_src_get_type(draw_dsc->bg_img_src) == LV_IMG_SRC_SYMBOL) {
draw_dsc->bg_img_symbol_font = lv_obj_get_style_text_font(obj, part);
draw_dsc->bg_img_recolor = lv_obj_get_style_text_color_filtered(obj, part);
}
else {
draw_dsc->bg_img_recolor = lv_obj_get_style_bg_img_recolor_filtered(obj, part);
draw_dsc->bg_img_recolor_opa = lv_obj_get_style_bg_img_recolor_opa(obj, part);
draw_dsc->bg_img_tiled = lv_obj_get_style_bg_img_tiled(obj, part);
}
}
}
}
if(draw_dsc->shadow_opa) {
draw_dsc->shadow_width = lv_obj_get_style_shadow_width(obj, part);
if(draw_dsc->shadow_width) {
if(draw_dsc->shadow_opa > LV_OPA_MIN) {
draw_dsc->shadow_opa = lv_obj_get_style_shadow_opa(obj, part);
if(draw_dsc->shadow_opa > LV_OPA_MIN) {
draw_dsc->shadow_ofs_x = lv_obj_get_style_shadow_ofs_x(obj, part);
draw_dsc->shadow_ofs_y = lv_obj_get_style_shadow_ofs_y(obj, part);
draw_dsc->shadow_spread = lv_obj_get_style_shadow_spread(obj, part);
draw_dsc->shadow_color = lv_obj_get_style_shadow_color_filtered(obj, part);
}
}
}
}
if(main_opa < LV_OPA_MAX) {
opa = (uint16_t)((uint16_t) main_opa * opa) >> 8;
}
if(opa < LV_OPA_MAX) {
draw_dsc->bg_opa = (uint16_t)((uint16_t)draw_dsc->bg_opa * opa) >> 8;
draw_dsc->border_opa = (uint16_t)((uint16_t)draw_dsc->border_opa * opa) >> 8;
draw_dsc->shadow_opa = (uint16_t)((uint16_t)draw_dsc->shadow_opa * opa) >> 8;
draw_dsc->outline_opa = (uint16_t)((uint16_t)draw_dsc->outline_opa * opa) >> 8;
}
#else /*LV_DRAW_COMPLEX*/
if(draw_dsc->bg_opa != LV_OPA_TRANSP) {
draw_dsc->bg_opa = lv_obj_get_style_bg_opa(obj, part);
if(draw_dsc->bg_opa > LV_OPA_MIN) {
draw_dsc->bg_color = lv_obj_get_style_bg_color_filtered(obj, part);
}
}
draw_dsc->border_width = lv_obj_get_style_border_width(obj, part);
if(draw_dsc->border_width) {
if(draw_dsc->border_opa != LV_OPA_TRANSP) {
draw_dsc->border_opa = lv_obj_get_style_border_opa(obj, part);
if(draw_dsc->border_opa > LV_OPA_MIN) {
draw_dsc->border_color = lv_obj_get_style_border_color_filtered(obj, part);
draw_dsc->border_side = lv_obj_get_style_border_side(obj, part);
}
}
}
draw_dsc->outline_width = lv_obj_get_style_outline_width(obj, part);
if(draw_dsc->outline_width) {
if(draw_dsc->outline_opa != LV_OPA_TRANSP) {
draw_dsc->outline_opa = lv_obj_get_style_outline_opa(obj, part);
if(draw_dsc->outline_opa > LV_OPA_MIN) {
draw_dsc->outline_pad = lv_obj_get_style_outline_pad(obj, part);
draw_dsc->outline_color = lv_obj_get_style_outline_color_filtered(obj, part);
}
}
}
if(draw_dsc->bg_img_opa != LV_OPA_TRANSP) {
draw_dsc->bg_img_src = lv_obj_get_style_bg_img_src(obj, part);
if(draw_dsc->bg_img_src) {
draw_dsc->bg_img_opa = lv_obj_get_style_bg_img_opa(obj, part);
if(draw_dsc->bg_img_opa > LV_OPA_MIN) {
if(lv_img_src_get_type(draw_dsc->bg_img_src) == LV_IMG_SRC_SYMBOL) {
draw_dsc->bg_img_symbol_font = lv_obj_get_style_text_font(obj, part);
draw_dsc->bg_img_recolor = lv_obj_get_style_text_color_filtered(obj, part);
}
else {
draw_dsc->bg_img_recolor = lv_obj_get_style_bg_img_recolor_filtered(obj, part);
draw_dsc->bg_img_recolor_opa = lv_obj_get_style_bg_img_recolor_opa(obj, part);
draw_dsc->bg_img_tiled = lv_obj_get_style_bg_img_tiled(obj, part);
}
}
}
}
#endif
}
void lv_obj_init_draw_label_dsc(lv_obj_t * obj, uint32_t part, lv_draw_label_dsc_t * draw_dsc)
{
draw_dsc->opa = lv_obj_get_style_text_opa(obj, part);
if(draw_dsc->opa <= LV_OPA_MIN) return;
lv_opa_t opa = lv_obj_get_style_opa(obj, part);
if(opa < LV_OPA_MAX) {
draw_dsc->opa = (uint16_t)((uint16_t)draw_dsc->opa * opa) >> 8;
}
if(draw_dsc->opa <= LV_OPA_MIN) return;
draw_dsc->color = lv_obj_get_style_text_color_filtered(obj, part);
draw_dsc->letter_space = lv_obj_get_style_text_letter_space(obj, part);
draw_dsc->line_space = lv_obj_get_style_text_line_space(obj, part);
draw_dsc->decor = lv_obj_get_style_text_decor(obj, part);
#if LV_DRAW_COMPLEX
draw_dsc->blend_mode = lv_obj_get_style_blend_mode(obj, part);
#endif
draw_dsc->font = lv_obj_get_style_text_font(obj, part);
#if LV_USE_BIDI
draw_dsc->bidi_dir = lv_obj_get_style_base_dir(obj, LV_PART_MAIN);
#endif
draw_dsc->align = lv_obj_get_style_text_align(obj, part);
}
void lv_obj_init_draw_img_dsc(lv_obj_t * obj, uint32_t part, lv_draw_img_dsc_t * draw_dsc)
{
draw_dsc->opa = lv_obj_get_style_img_opa(obj, part);
if(draw_dsc->opa <= LV_OPA_MIN) return;
lv_opa_t opa_scale = lv_obj_get_style_opa(obj, part);
if(opa_scale < LV_OPA_MAX) {
draw_dsc->opa = (uint16_t)((uint16_t)draw_dsc->opa * opa_scale) >> 8;
}
if(draw_dsc->opa <= LV_OPA_MIN) return;
draw_dsc->angle = 0;
draw_dsc->zoom = LV_IMG_ZOOM_NONE;
draw_dsc->pivot.x = lv_area_get_width(&obj->coords) / 2;
draw_dsc->pivot.y = lv_area_get_height(&obj->coords) / 2;
draw_dsc->recolor_opa = lv_obj_get_style_img_recolor_opa(obj, part);
if(draw_dsc->recolor_opa > 0) {
draw_dsc->recolor = lv_obj_get_style_img_recolor_filtered(obj, part);
}
#if LV_DRAW_COMPLEX
draw_dsc->blend_mode = lv_obj_get_style_blend_mode(obj, part);
#endif
}
void lv_obj_init_draw_line_dsc(lv_obj_t * obj, uint32_t part, lv_draw_line_dsc_t * draw_dsc)
{
draw_dsc->width = lv_obj_get_style_line_width(obj, part);
if(draw_dsc->width == 0) return;
draw_dsc->opa = lv_obj_get_style_line_opa(obj, part);
if(draw_dsc->opa <= LV_OPA_MIN) return;
lv_opa_t opa = lv_obj_get_style_opa(obj, part);
if(opa < LV_OPA_MAX) {
draw_dsc->opa = (uint16_t)((uint16_t)draw_dsc->opa * opa) >> 8;
}
if(draw_dsc->opa <= LV_OPA_MIN) return;
draw_dsc->color = lv_obj_get_style_line_color_filtered(obj, part);
draw_dsc->dash_width = lv_obj_get_style_line_dash_width(obj, part);
if(draw_dsc->dash_width) {
draw_dsc->dash_gap = lv_obj_get_style_line_dash_gap(obj, part);
}
draw_dsc->round_start = lv_obj_get_style_line_rounded(obj, part);
draw_dsc->round_end = draw_dsc->round_start;
#if LV_DRAW_COMPLEX
draw_dsc->blend_mode = lv_obj_get_style_blend_mode(obj, part);
#endif
}
void lv_obj_init_draw_arc_dsc(lv_obj_t * obj, uint32_t part, lv_draw_arc_dsc_t * draw_dsc)
{
draw_dsc->width = lv_obj_get_style_arc_width(obj, part);
if(draw_dsc->width == 0) return;
draw_dsc->opa = lv_obj_get_style_arc_opa(obj, part);
if(draw_dsc->opa <= LV_OPA_MIN) return;
lv_opa_t opa = lv_obj_get_style_opa(obj, part);
if(opa < LV_OPA_MAX) {
draw_dsc->opa = (uint16_t)((uint16_t)draw_dsc->opa * opa) >> 8;
}
if(draw_dsc->opa <= LV_OPA_MIN) return;
draw_dsc->color = lv_obj_get_style_arc_color_filtered(obj, part);
draw_dsc->img_src = lv_obj_get_style_arc_img_src(obj, part);
draw_dsc->rounded = lv_obj_get_style_arc_rounded(obj, part);
#if LV_DRAW_COMPLEX
draw_dsc->blend_mode = lv_obj_get_style_blend_mode(obj, part);
#endif
}
lv_coord_t lv_obj_calculate_ext_draw_size(lv_obj_t * obj, uint32_t part)
{
lv_coord_t s = 0;
lv_coord_t sh_width = lv_obj_get_style_shadow_width(obj, part);
if(sh_width) {
lv_opa_t sh_opa = lv_obj_get_style_shadow_opa(obj, part);
if(sh_opa > LV_OPA_MIN) {
sh_width = sh_width / 2 + 1; /*The blur adds only half width*/
sh_width += lv_obj_get_style_shadow_spread(obj, part);
lv_coord_t sh_ofs_x = lv_obj_get_style_shadow_ofs_x(obj, part);
lv_coord_t sh_ofs_y = lv_obj_get_style_shadow_ofs_y(obj, part);
sh_width += LV_MAX(LV_ABS(sh_ofs_x), LV_ABS(sh_ofs_y));
s = LV_MAX(s, sh_width);
}
}
lv_coord_t outline_width = lv_obj_get_style_outline_width(obj, part);
if(outline_width) {
lv_opa_t outline_opa = lv_obj_get_style_outline_opa(obj, part);
if(outline_opa > LV_OPA_MIN) {
lv_coord_t outline_pad = lv_obj_get_style_outline_pad(obj, part);
s = LV_MAX(s, outline_pad + outline_width);
}
}
lv_coord_t w = lv_obj_get_style_transform_width(obj, part);
lv_coord_t h = lv_obj_get_style_transform_height(obj, part);
lv_coord_t wh = LV_MAX(w, h);
if(wh > 0) s += wh;
return s;
}
void lv_obj_draw_dsc_init(lv_obj_draw_part_dsc_t * dsc, const lv_area_t * clip_area)
{
lv_memset_00(dsc, sizeof(lv_obj_draw_part_dsc_t));
dsc->clip_area = clip_area;
}
bool lv_obj_draw_part_check_type(lv_obj_draw_part_dsc_t * dsc, const lv_obj_class_t * class_p, uint32_t type)
{
if(dsc->class_p == class_p && dsc->type == type) return true;
else return false;
}
void lv_obj_refresh_ext_draw_size(lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_coord_t s_old = _lv_obj_get_ext_draw_size(obj);
lv_coord_t s_new = 0;
lv_event_send(obj, LV_EVENT_REFR_EXT_DRAW_SIZE, &s_new);
if(s_new != s_old) lv_obj_invalidate(obj);
/*Store the result if the special attrs already allocated*/
if(obj->spec_attr) {
obj->spec_attr->ext_draw_size = s_new;
}
/*Allocate spec. attrs. only if the result is not zero.
*Zero is the default value if the spec. attr. are not defined.*/
else if(s_new != 0) {
lv_obj_allocate_spec_attr(obj);
obj->spec_attr->ext_draw_size = s_new;
}
if(s_new != s_old) lv_obj_invalidate(obj);
}
lv_coord_t _lv_obj_get_ext_draw_size(const lv_obj_t * obj)
{
if(obj->spec_attr) return obj->spec_attr->ext_draw_size;
else return 0;
}
/**********************
* STATIC FUNCTIONS
**********************/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_obj_draw.c | C | apache-2.0 | 13,513 |
/**
* @file lv_obj_draw.h
*
*/
#ifndef LV_OBJ_DRAW_H
#define LV_OBJ_DRAW_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "../draw/lv_draw.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
struct _lv_obj_t;
struct _lv_obj_class_t;
/** Cover check results.*/
typedef enum {
LV_COVER_RES_COVER = 0,
LV_COVER_RES_NOT_COVER = 1,
LV_COVER_RES_MASKED = 2,
} lv_cover_res_t;
typedef struct {
const lv_area_t * clip_area; /**< The current clip area, required if you need to draw something in the event*/
const struct _lv_obj_class_t * class_p; /**< The class that sent the event */
uint32_t type; /**< The type if part being draw. Element of `lv_<name>_draw_part_type_t` */
lv_area_t * draw_area; /**< The area of the part being drawn*/
lv_draw_rect_dsc_t *
rect_dsc; /**< A draw descriptor that can be modified to changed what LVGL will draw. Set only for rectangle-like parts*/
lv_draw_label_dsc_t *
label_dsc; /**< A draw descriptor that can be modified to changed what LVGL will draw. Set only for text-like parts*/
lv_draw_line_dsc_t *
line_dsc; /**< A draw descriptor that can be modified to changed what LVGL will draw. Set only for line-like parts*/
lv_draw_img_dsc_t *
img_dsc; /**< A draw descriptor that can be modified to changed what LVGL will draw. Set only for image-like parts*/
lv_draw_arc_dsc_t *
arc_dsc; /**< A draw descriptor that can be modified to changed what LVGL will draw. Set only for arc-like parts*/
const lv_point_t *
p1; /**< A point calculated during drawing. E.g. a point of chart or the center of an arc.*/
const lv_point_t * p2; /**< A point calculated during drawing. E.g. a point of chart.*/
char * text; /**< A text calculated during drawing. Can be modified. E.g. tick labels on a chart axis.*/
uint32_t text_length; /**< Size of the text buffer containing null-terminated text string calculated during drawing.*/
uint32_t part; /**< The current part for which the event is sent*/
uint32_t id; /**< The index of the part. E.g. a button's index on button matrix or table cell index.*/
lv_coord_t radius; /**< E.g. the radius of an arc (not the corner radius).*/
int32_t value; /**< A value calculated during drawing. E.g. Chart's tick line value.*/
const void * sub_part_ptr; /**< A pointer the identifies something in the part. E.g. chart series. */
} lv_obj_draw_part_dsc_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Initialize a rectangle draw descriptor from an object's styles in its current state
* @param obj pointer to an object
* @param part part of the object. E.g. `LV_PART_MAIN`, `LV_PART_SCROLLBAR`, `LV_PART_KNOB`, etc
* @param draw_dsc the descriptor to initialize.
* If an `..._opa` field is set to `LV_OPA_TRANSP` the related properties won't be initialized.
* Should be initialized with `lv_draw_rect_dsc_init(draw_dsc)`.
* @note Only the relevant fields will be set.
* E.g. if `border width == 0` the other border properties won't be evaluated.
*/
void lv_obj_init_draw_rect_dsc(struct _lv_obj_t * obj, uint32_t part, lv_draw_rect_dsc_t * draw_dsc);
/**
* Initialize a label draw descriptor from an object's styles in its current state
* @param obj pointer to an object
* @param part part of the object. E.g. `LV_PART_MAIN`, `LV_PART_SCROLLBAR`, `LV_PART_KNOB`, etc
* @param draw_dsc the descriptor to initialize.
* If the `opa` field is set to or the property is equal to `LV_OPA_TRANSP` the rest won't be initialized.
* Should be initialized with `lv_draw_label_dsc_init(draw_dsc)`.
*/
void lv_obj_init_draw_label_dsc(struct _lv_obj_t * obj, uint32_t part, lv_draw_label_dsc_t * draw_dsc);
/**
* Initialize an image draw descriptor from an object's styles in its current state
* @param obj pointer to an object
* @param part part of the object. E.g. `LV_PART_MAIN`, `LV_PART_SCROLLBAR`, `LV_PART_KNOB`, etc
* @param draw_dsc the descriptor to initialize.
* Should be initialized with `lv_draw_image_dsc_init(draw_dsc)`.
*/
void lv_obj_init_draw_img_dsc(struct _lv_obj_t * obj, uint32_t part, lv_draw_img_dsc_t * draw_dsc);
/**
* Initialize a line draw descriptor from an object's styles in its current state
* @param obj pointer to an object
* @param part part of the object. E.g. `LV_PART_MAIN`, `LV_PART_SCROLLBAR`, `LV_PART_KNOB`, etc
* @param draw_dsc the descriptor to initialize.
* Should be initialized with `lv_draw_line_dsc_init(draw_dsc)`.
*/
void lv_obj_init_draw_line_dsc(struct _lv_obj_t * obj, uint32_t part, lv_draw_line_dsc_t * draw_dsc);
/**
* Initialize an arc draw descriptor from an object's styles in its current state
* @param obj pointer to an object
* @param part part of the object. E.g. `LV_PART_MAIN`, `LV_PART_SCROLLBAR`, `LV_PART_KNOB`, etc
* @param draw_dsc the descriptor to initialize.
* Should be initialized with `lv_draw_arc_dsc_init(draw_dsc)`.
*/
void lv_obj_init_draw_arc_dsc(struct _lv_obj_t * obj, uint32_t part, lv_draw_arc_dsc_t * draw_dsc);
/**
* Get the required extra size (around the object's part) to draw shadow, outline, value etc.
* @param obj pointer to an object
* @param part part of the object
* @return the extra size required around the object
*/
lv_coord_t lv_obj_calculate_ext_draw_size(struct _lv_obj_t * obj, uint32_t part);
/**
* Initialize a draw descriptor used in events.
* @param dsc pointer to a descriptor. Later it should be passed as parameter to an `LV_EEVNT_DRAW_PART_BEGIN/END` event.
* @param clip_area the current clip area of the drawing
*/
void lv_obj_draw_dsc_init(lv_obj_draw_part_dsc_t * dsc, const lv_area_t * clip_area);
/**
* Check the type obj a part draw descriptor
* @param dsc the descriptor (normally the event parameter)
* @param class_p pointer to class to which `type` is related
* @param type element of `lv_<name>_draw_part_type_t`
* @return true if ::dsc is related to ::class_p and ::type
*/
bool lv_obj_draw_part_check_type(lv_obj_draw_part_dsc_t * dsc, const struct _lv_obj_class_t * class_p, uint32_t type);
/**
* Send a 'LV_EVENT_REFR_EXT_DRAW_SIZE' Call the ancestor's event handler to the object to refresh the value of the extended draw size.
* The result will be saved in `obj`.
* @param obj pointer to an object
*/
void lv_obj_refresh_ext_draw_size(struct _lv_obj_t * obj);
/**
* Get the extended draw area of an object.
* @param obj pointer to an object
* @return the size extended draw area around the real coordinates
*/
lv_coord_t _lv_obj_get_ext_draw_size(const struct _lv_obj_t * obj);
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_OBJ_DRAW_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_obj_draw.h | C | apache-2.0 | 7,226 |
/**
* @file lv_obj_pos.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_obj.h"
#include "lv_disp.h"
#include "lv_refr.h"
#include "../misc/lv_gc.h"
/*********************
* DEFINES
*********************/
#define MY_CLASS &lv_obj_class
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static lv_coord_t calc_content_width(lv_obj_t * obj);
static lv_coord_t calc_content_height(lv_obj_t * obj);
static void layout_update_core(lv_obj_t * obj);
/**********************
* STATIC VARIABLES
**********************/
static uint32_t layout_cnt;
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
void lv_obj_set_pos(lv_obj_t * obj, lv_coord_t x, lv_coord_t y)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_obj_set_x(obj, x);
lv_obj_set_y(obj, y);
}
void lv_obj_set_x(lv_obj_t * obj, lv_coord_t x)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_res_t res_x;
lv_style_value_t v_x;
res_x = lv_obj_get_local_style_prop(obj, LV_STYLE_X, &v_x, 0);
if((res_x == LV_RES_OK && v_x.num != x) || res_x == LV_RES_INV) {
lv_obj_set_style_x(obj, x, 0);
}
}
void lv_obj_set_y(lv_obj_t * obj, lv_coord_t y)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_res_t res_y;
lv_style_value_t v_y;
res_y = lv_obj_get_local_style_prop(obj, LV_STYLE_Y, &v_y, 0);
if((res_y == LV_RES_OK && v_y.num != y) || res_y == LV_RES_INV) {
lv_obj_set_style_y(obj, y, 0);
}
}
bool lv_obj_refr_size(lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
/*If the width or height is set by a layout do not modify them*/
if(obj->w_layout && obj->h_layout) return false;
lv_obj_t * parent = lv_obj_get_parent(obj);
if(parent == NULL) return false;
lv_coord_t sl_ori = lv_obj_get_scroll_left(obj);
bool w_is_content = false;
bool w_is_pct = false;
lv_coord_t w;
if(obj->w_layout) {
w = lv_obj_get_width(obj);
}
else {
w = lv_obj_get_style_width(obj, LV_PART_MAIN);
w_is_content = w == LV_SIZE_CONTENT ? true : false;
w_is_pct = LV_COORD_IS_PCT(w) ? true : false;
lv_coord_t parent_w = lv_obj_get_content_width(parent);
if(w_is_content) {
w = calc_content_width(obj);
}
else if(w_is_pct) {
/*If parent has content size and the child has pct size
*a circular dependency will occur. To solve it keep child size at zero */
if(parent->w_layout == 0 && lv_obj_get_style_width(parent, 0) == LV_SIZE_CONTENT) {
lv_coord_t border_w = lv_obj_get_style_border_width(obj, 0);
w = lv_obj_get_style_pad_left(obj, 0) + border_w;
w += lv_obj_get_style_pad_right(obj, 0) + border_w;
}
else {
w = (LV_COORD_GET_PCT(w) * parent_w) / 100;
}
}
lv_coord_t minw = lv_obj_get_style_min_width(obj, LV_PART_MAIN);
lv_coord_t maxw = lv_obj_get_style_max_width(obj, LV_PART_MAIN);
w = lv_clamp_width(w, minw, maxw, parent_w);
}
lv_coord_t st_ori = lv_obj_get_scroll_top(obj);
lv_coord_t h;
bool h_is_content = false;
bool h_is_pct = false;
if(obj->h_layout) {
h = lv_obj_get_height(obj);
}
else {
h = lv_obj_get_style_height(obj, LV_PART_MAIN);
h_is_content = h == LV_SIZE_CONTENT ? true : false;
h_is_pct = LV_COORD_IS_PCT(h) ? true : false;
lv_coord_t parent_h = lv_obj_get_content_height(parent);
if(h_is_content) {
h = calc_content_height(obj);
}
else if(h_is_pct) {
/*If parent has content size and the child has pct size
*a circular dependency will occur. To solve it keep child size at zero */
if(parent->h_layout == 0 && lv_obj_get_style_height(parent, 0) == LV_SIZE_CONTENT) {
lv_coord_t border_w = lv_obj_get_style_border_width(obj, 0);
h = lv_obj_get_style_pad_top(obj, 0) + border_w;
h += lv_obj_get_style_pad_bottom(obj, 0) + border_w;
}
else {
h = (LV_COORD_GET_PCT(h) * parent_h) / 100;
}
}
lv_coord_t minh = lv_obj_get_style_min_height(obj, LV_PART_MAIN);
lv_coord_t maxh = lv_obj_get_style_max_height(obj, LV_PART_MAIN);
h = lv_clamp_height(h, minh, maxh, parent_h);
}
/*calc_auto_size set the scroll x/y to 0 so revert the original value*/
if(w_is_content || h_is_content) {
lv_obj_scroll_to(obj, sl_ori, st_ori, LV_ANIM_OFF);
}
/*Do nothing if the size is not changed*/
/*It is very important else recursive resizing can occur without size change*/
if(lv_obj_get_width(obj) == w && lv_obj_get_height(obj) == h) return false;
/*Invalidate the original area*/
lv_obj_invalidate(obj);
/*Save the original coordinates*/
lv_area_t ori;
lv_obj_get_coords(obj, &ori);
/*Check if the object inside the parent or not*/
lv_area_t parent_fit_area;
lv_obj_get_content_coords(parent, &parent_fit_area);
/*If the object is already out of the parent and its position is changes
*surely the scrollbars also changes so invalidate them*/
bool on1 = _lv_area_is_in(&ori, &parent_fit_area, 0);
if(!on1) lv_obj_scrollbar_invalidate(parent);
/*Set the length and height
*Be sure the content is not scrolled in an invalid position on the new size*/
obj->coords.y2 = obj->coords.y1 + h - 1;
if(lv_obj_get_style_base_dir(obj, LV_PART_MAIN) == LV_BASE_DIR_RTL) {
obj->coords.x1 = obj->coords.x2 - w + 1;
}
else {
obj->coords.x2 = obj->coords.x1 + w - 1;
}
/*Call the ancestor's event handler to the object with its new coordinates*/
lv_event_send(obj, LV_EVENT_SIZE_CHANGED, &ori);
/*Call the ancestor's event handler to the parent too*/
lv_event_send(parent, LV_EVENT_CHILD_CHANGED, obj);
/*Invalidate the new area*/
lv_obj_invalidate(obj);
lv_obj_readjust_scroll(obj, LV_ANIM_OFF);
/*If the object was out of the parent invalidate the new scrollbar area too.
*If it wasn't out of the parent but out now, also invalidate the srollbars*/
bool on2 = _lv_area_is_in(&obj->coords, &parent_fit_area, 0);
if(on1 || (!on1 && on2)) lv_obj_scrollbar_invalidate(parent);
return true;
}
void lv_obj_set_size(lv_obj_t * obj, lv_coord_t w, lv_coord_t h)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_obj_set_width(obj, w);
lv_obj_set_height(obj, h);
}
void lv_obj_set_width(lv_obj_t * obj, lv_coord_t w)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_res_t res_w;
lv_style_value_t v_w;
res_w = lv_obj_get_local_style_prop(obj, LV_STYLE_WIDTH, &v_w, 0);
if((res_w == LV_RES_OK && v_w.num != w) || res_w == LV_RES_INV) {
lv_obj_set_style_width(obj, w, 0);
}
}
void lv_obj_set_height(lv_obj_t * obj, lv_coord_t h)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_res_t res_h;
lv_style_value_t v_h;
res_h = lv_obj_get_local_style_prop(obj, LV_STYLE_HEIGHT, &v_h, 0);
if((res_h == LV_RES_OK && v_h.num != h) || res_h == LV_RES_INV) {
lv_obj_set_style_height(obj, h, 0);
}
}
void lv_obj_set_content_width(lv_obj_t * obj, lv_coord_t w)
{
lv_coord_t pleft = lv_obj_get_style_pad_left(obj, LV_PART_MAIN);
lv_coord_t pright = lv_obj_get_style_pad_right(obj, LV_PART_MAIN);
lv_coord_t border_width = lv_obj_get_style_border_width(obj, LV_PART_MAIN);
lv_obj_set_width(obj, w + pleft + pright + 2 * border_width);
}
void lv_obj_set_content_height(lv_obj_t * obj, lv_coord_t h)
{
lv_coord_t ptop = lv_obj_get_style_pad_top(obj, LV_PART_MAIN);
lv_coord_t pbottom = lv_obj_get_style_pad_bottom(obj, LV_PART_MAIN);
lv_coord_t border_width = lv_obj_get_style_border_width(obj, LV_PART_MAIN);
lv_obj_set_height(obj, h + ptop + pbottom + 2 * border_width);
}
void lv_obj_set_layout(lv_obj_t * obj, uint32_t layout)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_obj_set_style_layout(obj, layout, 0);
lv_obj_mark_layout_as_dirty(obj);
}
bool lv_obj_is_layout_positioned(const lv_obj_t * obj)
{
if(lv_obj_has_flag_any(obj, LV_OBJ_FLAG_HIDDEN | LV_OBJ_FLAG_IGNORE_LAYOUT | LV_OBJ_FLAG_FLOATING)) return false;
lv_obj_t * parent = lv_obj_get_parent(obj);
if(parent == NULL) return false;
uint32_t layout = lv_obj_get_style_layout(parent, LV_PART_MAIN);
if(layout) return true;
else return false;
}
void lv_obj_mark_layout_as_dirty(lv_obj_t * obj)
{
obj->layout_inv = 1;
/*Mark the screen as dirty too to mark that there is something to do on this screen*/
lv_obj_t * scr = lv_obj_get_screen(obj);
scr->scr_layout_inv = 1;
/*Make the display refreshing*/
lv_disp_t * disp = lv_obj_get_disp(scr);
lv_timer_resume(disp->refr_timer);
}
void lv_obj_update_layout(const lv_obj_t * obj)
{
static bool mutex = false;
if(mutex) {
LV_LOG_TRACE("Already running, returning");
return;
}
mutex = true;
lv_obj_t * scr = lv_obj_get_screen(obj);
/*Repeat until there where layout invalidations*/
while(scr->scr_layout_inv) {
LV_LOG_INFO("Layout update begin");
scr->scr_layout_inv = 0;
layout_update_core(scr);
LV_LOG_TRACE("Layout update end");
}
mutex = false;
}
uint32_t lv_layout_register(lv_layout_update_cb_t cb, void * user_data)
{
layout_cnt++;
LV_GC_ROOT(_lv_layout_list) = lv_mem_realloc(LV_GC_ROOT(_lv_layout_list), layout_cnt * sizeof(lv_layout_dsc_t));
LV_ASSERT_MALLOC(LV_GC_ROOT(_lv_layout_list));
LV_GC_ROOT(_lv_layout_list)[layout_cnt - 1].cb = cb;
LV_GC_ROOT(_lv_layout_list)[layout_cnt - 1].user_data = user_data;
return layout_cnt; /*No -1 to skip 0th index*/
}
void lv_obj_set_align(lv_obj_t * obj, lv_align_t align)
{
lv_obj_set_style_align(obj, align, 0);
}
void lv_obj_align(lv_obj_t * obj, lv_align_t align, lv_coord_t x_ofs, lv_coord_t y_ofs)
{
lv_obj_set_style_align(obj, align, 0);
lv_obj_set_pos(obj, x_ofs, y_ofs);
}
void lv_obj_align_to(lv_obj_t * obj, const lv_obj_t * base, lv_align_t align, lv_coord_t x_ofs, lv_coord_t y_ofs)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_obj_update_layout(obj);
if(base == NULL) base = lv_obj_get_parent(obj);
LV_ASSERT_OBJ(base, MY_CLASS);
lv_coord_t x = 0;
lv_coord_t y = 0;
lv_obj_t * parent = lv_obj_get_parent(obj);
lv_coord_t pborder = lv_obj_get_style_border_width(parent, LV_PART_MAIN);
lv_coord_t pleft = lv_obj_get_style_pad_left(parent, LV_PART_MAIN) + pborder;
lv_coord_t ptop = lv_obj_get_style_pad_top(parent, LV_PART_MAIN) + pborder;
lv_coord_t bborder = lv_obj_get_style_border_width(base, LV_PART_MAIN);
lv_coord_t bleft = lv_obj_get_style_pad_left(base, LV_PART_MAIN) + bborder;
lv_coord_t btop = lv_obj_get_style_pad_top(base, LV_PART_MAIN) + bborder;
if(align == LV_ALIGN_DEFAULT) {
if(lv_obj_get_style_base_dir(base, LV_PART_MAIN) == LV_BASE_DIR_RTL) align = LV_ALIGN_TOP_RIGHT;
else align = LV_ALIGN_TOP_LEFT;
}
switch(align) {
case LV_ALIGN_CENTER:
x = lv_obj_get_content_width(base) / 2 - lv_obj_get_width(obj) / 2 + bleft;
y = lv_obj_get_content_height(base) / 2 - lv_obj_get_height(obj) / 2 + btop;
break;
case LV_ALIGN_TOP_LEFT:
x = bleft;
y = btop;
break;
case LV_ALIGN_TOP_MID:
x = lv_obj_get_content_width(base) / 2 - lv_obj_get_width(obj) / 2 + bleft;
y = btop;
break;
case LV_ALIGN_TOP_RIGHT:
x = lv_obj_get_content_width(base) - lv_obj_get_width(obj) + bleft;
y = btop;
break;
case LV_ALIGN_BOTTOM_LEFT:
x = bleft;
y = lv_obj_get_content_height(base) - lv_obj_get_height(obj) + btop;
break;
case LV_ALIGN_BOTTOM_MID:
x = lv_obj_get_content_width(base) / 2 - lv_obj_get_width(obj) / 2 + bleft;
y = lv_obj_get_content_height(base) - lv_obj_get_height(obj) + btop;
break;
case LV_ALIGN_BOTTOM_RIGHT:
x = lv_obj_get_content_width(base) - lv_obj_get_width(obj) + bleft;
y = lv_obj_get_content_height(base) - lv_obj_get_height(obj) + btop;
break;
case LV_ALIGN_LEFT_MID:
x = bleft;
y = lv_obj_get_content_height(base) / 2 - lv_obj_get_height(obj) / 2 + btop;
break;
case LV_ALIGN_RIGHT_MID:
x = lv_obj_get_content_width(base) - lv_obj_get_width(obj) + bleft;
y = lv_obj_get_content_height(base) / 2 - lv_obj_get_height(obj) / 2 + btop;
break;
case LV_ALIGN_OUT_TOP_LEFT:
x = 0;
y = -lv_obj_get_height(obj);
break;
case LV_ALIGN_OUT_TOP_MID:
x = lv_obj_get_width(base) / 2 - lv_obj_get_width(obj) / 2;
y = -lv_obj_get_height(obj);
break;
case LV_ALIGN_OUT_TOP_RIGHT:
x = lv_obj_get_width(base) - lv_obj_get_width(obj);
y = -lv_obj_get_height(obj);
break;
case LV_ALIGN_OUT_BOTTOM_LEFT:
x = 0;
y = lv_obj_get_height(base);
break;
case LV_ALIGN_OUT_BOTTOM_MID:
x = lv_obj_get_width(base) / 2 - lv_obj_get_width(obj) / 2;
y = lv_obj_get_height(base);
break;
case LV_ALIGN_OUT_BOTTOM_RIGHT:
x = lv_obj_get_width(base) - lv_obj_get_width(obj);
y = lv_obj_get_height(base);
break;
case LV_ALIGN_OUT_LEFT_TOP:
x = -lv_obj_get_width(obj);
y = 0;
break;
case LV_ALIGN_OUT_LEFT_MID:
x = -lv_obj_get_width(obj);
y = lv_obj_get_height(base) / 2 - lv_obj_get_height(obj) / 2;
break;
case LV_ALIGN_OUT_LEFT_BOTTOM:
x = -lv_obj_get_width(obj);
y = lv_obj_get_height(base) - lv_obj_get_height(obj);
break;
case LV_ALIGN_OUT_RIGHT_TOP:
x = lv_obj_get_width(base);
y = 0;
break;
case LV_ALIGN_OUT_RIGHT_MID:
x = lv_obj_get_width(base);
y = lv_obj_get_height(base) / 2 - lv_obj_get_height(obj) / 2;
break;
case LV_ALIGN_OUT_RIGHT_BOTTOM:
x = lv_obj_get_width(base);
y = lv_obj_get_height(base) - lv_obj_get_height(obj);
break;
}
if(lv_obj_get_style_base_dir(parent, LV_PART_MAIN) == LV_BASE_DIR_RTL) {
x += x_ofs + base->coords.x1 - parent->coords.x1 + lv_obj_get_scroll_right(parent) - pleft;
}
else {
x += x_ofs + base->coords.x1 - parent->coords.x1 + lv_obj_get_scroll_left(parent) - pleft;
}
y += y_ofs + base->coords.y1 - parent->coords.y1 + lv_obj_get_scroll_top(parent) - ptop;
lv_obj_set_style_align(obj, LV_ALIGN_TOP_LEFT, 0);
lv_obj_set_pos(obj, x, y);
}
void lv_obj_get_coords(const lv_obj_t * obj, lv_area_t * coords)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_area_copy(coords, &obj->coords);
}
lv_coord_t lv_obj_get_x(const lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_coord_t rel_x;
lv_obj_t * parent = lv_obj_get_parent(obj);
if(parent) {
rel_x = obj->coords.x1 - parent->coords.x1;
rel_x += lv_obj_get_scroll_x(parent);
rel_x -= lv_obj_get_style_pad_left(parent, LV_PART_MAIN);
rel_x -= lv_obj_get_style_border_width(parent, LV_PART_MAIN);
}
else {
rel_x = obj->coords.x1;
}
return rel_x;
}
lv_coord_t lv_obj_get_x2(const lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
return lv_obj_get_x(obj) + lv_obj_get_width(obj);
}
lv_coord_t lv_obj_get_y(const lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_coord_t rel_y;
lv_obj_t * parent = lv_obj_get_parent(obj);
if(parent) {
rel_y = obj->coords.y1 - parent->coords.y1;
rel_y += lv_obj_get_scroll_y(parent);
rel_y -= lv_obj_get_style_pad_top(parent, LV_PART_MAIN);
rel_y -= lv_obj_get_style_border_width(parent, LV_PART_MAIN);
}
else {
rel_y = obj->coords.y1;
}
return rel_y;
}
lv_coord_t lv_obj_get_y2(const lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
return lv_obj_get_y(obj) + lv_obj_get_height(obj);
}
lv_coord_t lv_obj_get_width(const lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
return lv_area_get_width(&obj->coords);
}
lv_coord_t lv_obj_get_height(const lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
return lv_area_get_height(&obj->coords);
}
lv_coord_t lv_obj_get_content_width(const lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_coord_t left = lv_obj_get_style_pad_left(obj, LV_PART_MAIN);
lv_coord_t right = lv_obj_get_style_pad_right(obj, LV_PART_MAIN);
lv_coord_t border_width = lv_obj_get_style_border_width(obj, LV_PART_MAIN);
return lv_obj_get_width(obj) - left - right - 2 * border_width;
}
lv_coord_t lv_obj_get_content_height(const lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_coord_t top = lv_obj_get_style_pad_top(obj, LV_PART_MAIN);
lv_coord_t bottom = lv_obj_get_style_pad_bottom(obj, LV_PART_MAIN);
lv_coord_t border_width = lv_obj_get_style_border_width(obj, LV_PART_MAIN);
return lv_obj_get_height(obj) - top - bottom - 2 * border_width;
}
void lv_obj_get_content_coords(const lv_obj_t * obj, lv_area_t * area)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_coord_t border_width = lv_obj_get_style_border_width(obj, LV_PART_MAIN);
lv_obj_get_coords(obj, area);
lv_area_increase(area, -border_width, -border_width);
area->x1 += lv_obj_get_style_pad_left(obj, LV_PART_MAIN);
area->x2 -= lv_obj_get_style_pad_right(obj, LV_PART_MAIN);
area->y1 += lv_obj_get_style_pad_top(obj, LV_PART_MAIN);
area->y2 -= lv_obj_get_style_pad_bottom(obj, LV_PART_MAIN);
}
lv_coord_t lv_obj_get_self_width(const lv_obj_t * obj)
{
lv_point_t p = {0, LV_COORD_MIN};
lv_event_send((lv_obj_t *)obj, LV_EVENT_GET_SELF_SIZE, &p);
return p.x;
}
lv_coord_t lv_obj_get_self_height(const lv_obj_t * obj)
{
lv_point_t p = {LV_COORD_MIN, 0};
lv_event_send((lv_obj_t *)obj, LV_EVENT_GET_SELF_SIZE, &p);
return p.y;
}
bool lv_obj_refresh_self_size(lv_obj_t * obj)
{
lv_coord_t w_set = lv_obj_get_style_width(obj, LV_PART_MAIN);
lv_coord_t h_set = lv_obj_get_style_height(obj, LV_PART_MAIN);
if(w_set != LV_SIZE_CONTENT && h_set != LV_SIZE_CONTENT) return false;
lv_obj_mark_layout_as_dirty(obj);
return true;
}
void lv_obj_refr_pos(lv_obj_t * obj)
{
if(lv_obj_is_layout_positioned(obj)) return;
lv_obj_t * parent = lv_obj_get_parent(obj);
lv_coord_t x = lv_obj_get_style_x(obj, LV_PART_MAIN);
lv_coord_t y = lv_obj_get_style_y(obj, LV_PART_MAIN);
if(parent == NULL) {
lv_obj_move_to(obj, x, y);
return;
}
/*Handle percentage value*/
lv_coord_t pw = lv_obj_get_content_width(parent);
lv_coord_t ph = lv_obj_get_content_height(parent);
if(LV_COORD_IS_PCT(x)) x = (pw * LV_COORD_GET_PCT(x)) / 100;
if(LV_COORD_IS_PCT(y)) y = (ph * LV_COORD_GET_PCT(y)) / 100;
/*Handle percentage value of translate*/
lv_coord_t tr_x = lv_obj_get_style_translate_x(obj, LV_PART_MAIN);
lv_coord_t tr_y = lv_obj_get_style_translate_y(obj, LV_PART_MAIN);
lv_coord_t w = lv_obj_get_width(obj);
lv_coord_t h = lv_obj_get_height(obj);
if(LV_COORD_IS_PCT(tr_x)) tr_x = (w * LV_COORD_GET_PCT(tr_x)) / 100;
if(LV_COORD_IS_PCT(tr_y)) tr_y = (h * LV_COORD_GET_PCT(tr_y)) / 100;
/*Use the translation*/
x += tr_x;
y += tr_y;
lv_align_t align = lv_obj_get_style_align(obj, LV_PART_MAIN);
if(align == LV_ALIGN_DEFAULT) {
if(lv_obj_get_style_base_dir(parent, LV_PART_MAIN) == LV_BASE_DIR_RTL) align = LV_ALIGN_TOP_RIGHT;
else align = LV_ALIGN_TOP_LEFT;
}
if(align == LV_ALIGN_TOP_LEFT) {
lv_obj_move_to(obj, x, y);
}
else {
switch(align) {
case LV_ALIGN_TOP_MID:
x += pw / 2 - w / 2;
break;
case LV_ALIGN_TOP_RIGHT:
x += pw - w;
break;
case LV_ALIGN_LEFT_MID:
y += ph / 2 - h / 2;
break;
case LV_ALIGN_BOTTOM_LEFT:
y += ph - h;
break;
case LV_ALIGN_BOTTOM_MID:
x += pw / 2 - w / 2;
y += ph - h;
break;
case LV_ALIGN_BOTTOM_RIGHT:
x += pw - w;
y += ph - h;
break;
case LV_ALIGN_RIGHT_MID:
x += pw - w;
y += ph / 2 - h / 2;
break;
case LV_ALIGN_CENTER:
x += pw / 2 - w / 2;
y += ph / 2 - h / 2;
break;
default:
break;
}
lv_obj_move_to(obj, x, y);
}
}
void lv_obj_move_to(lv_obj_t * obj, lv_coord_t x, lv_coord_t y)
{
/*Convert x and y to absolute coordinates*/
lv_obj_t * parent = obj->parent;
if(parent) {
lv_coord_t pad_left = lv_obj_get_style_pad_left(parent, LV_PART_MAIN);
lv_coord_t pad_top = lv_obj_get_style_pad_top(parent, LV_PART_MAIN);
if(lv_obj_has_flag(obj, LV_OBJ_FLAG_FLOATING)) {
x += pad_left + parent->coords.x1;
y += pad_top + parent->coords.y1;
}
else {
x += pad_left + parent->coords.x1 - lv_obj_get_scroll_x(parent);
y += pad_top + parent->coords.y1 - lv_obj_get_scroll_y(parent);
}
lv_coord_t border_width = lv_obj_get_style_border_width(parent, LV_PART_MAIN);
x += border_width;
y += border_width;
}
/*Calculate and set the movement*/
lv_point_t diff;
diff.x = x - obj->coords.x1;
diff.y = y - obj->coords.y1;
/*Do nothing if the position is not changed*/
/*It is very important else recursive positioning can
*occur without position change*/
if(diff.x == 0 && diff.y == 0) return;
/*Invalidate the original area*/
lv_obj_invalidate(obj);
/*Save the original coordinates*/
lv_area_t ori;
lv_obj_get_coords(obj, &ori);
/*Check if the object inside the parent or not*/
lv_area_t parent_fit_area;
bool on1 = false;
if(parent) {
lv_obj_get_content_coords(parent, &parent_fit_area);
/*If the object is already out of the parent and its position is changes
*surely the scrollbars also changes so invalidate them*/
on1 = _lv_area_is_in(&ori, &parent_fit_area, 0);
if(!on1) lv_obj_scrollbar_invalidate(parent);
}
obj->coords.x1 += diff.x;
obj->coords.y1 += diff.y;
obj->coords.x2 += diff.x;
obj->coords.y2 += diff.y;
lv_obj_move_children_by(obj, diff.x, diff.y, false);
/*Call the ancestor's event handler to the parent too*/
if(parent) lv_event_send(parent, LV_EVENT_CHILD_CHANGED, obj);
/*Invalidate the new area*/
lv_obj_invalidate(obj);
/*If the object was out of the parent invalidate the new scrollbar area too.
*If it wasn't out of the parent but out now, also invalidate the srollbars*/
if(parent) {
bool on2 = _lv_area_is_in(&obj->coords, &parent_fit_area, 0);
if(on1 || (!on1 && on2)) lv_obj_scrollbar_invalidate(parent);
}
}
void lv_obj_move_children_by(lv_obj_t * obj, lv_coord_t x_diff, lv_coord_t y_diff, bool ignore_floating)
{
uint32_t i;
uint32_t child_cnt = lv_obj_get_child_cnt(obj);
for(i = 0; i < child_cnt; i++) {
lv_obj_t * child = obj->spec_attr->children[i];
if(ignore_floating && lv_obj_has_flag(child, LV_OBJ_FLAG_FLOATING)) continue;
child->coords.x1 += x_diff;
child->coords.y1 += y_diff;
child->coords.x2 += x_diff;
child->coords.y2 += y_diff;
lv_obj_move_children_by(child, x_diff, y_diff, false);
}
}
void lv_obj_invalidate_area(const lv_obj_t * obj, const lv_area_t * area)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_area_t area_tmp;
lv_area_copy(&area_tmp, area);
bool visible = lv_obj_area_is_visible(obj, &area_tmp);
if(visible) _lv_inv_area(lv_obj_get_disp(obj), &area_tmp);
}
void lv_obj_invalidate(const lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
/*Truncate the area to the object*/
lv_area_t obj_coords;
lv_coord_t ext_size = _lv_obj_get_ext_draw_size(obj);
lv_area_copy(&obj_coords, &obj->coords);
obj_coords.x1 -= ext_size;
obj_coords.y1 -= ext_size;
obj_coords.x2 += ext_size;
obj_coords.y2 += ext_size;
lv_obj_invalidate_area(obj, &obj_coords);
}
bool lv_obj_area_is_visible(const lv_obj_t * obj, lv_area_t * area)
{
if(lv_obj_has_flag(obj, LV_OBJ_FLAG_HIDDEN)) return false;
/*Invalidate the object only if it belongs to the current or previous'*/
lv_obj_t * obj_scr = lv_obj_get_screen(obj);
lv_disp_t * disp = lv_obj_get_disp(obj_scr);
if(obj_scr != lv_disp_get_scr_act(disp) &&
obj_scr != lv_disp_get_scr_prev(disp) &&
obj_scr != lv_disp_get_layer_top(disp) &&
obj_scr != lv_disp_get_layer_sys(disp)) {
return false;
}
/*Truncate the area to the object*/
lv_area_t obj_coords;
lv_coord_t ext_size = _lv_obj_get_ext_draw_size(obj);
lv_area_copy(&obj_coords, &obj->coords);
obj_coords.x1 -= ext_size;
obj_coords.y1 -= ext_size;
obj_coords.x2 += ext_size;
obj_coords.y2 += ext_size;
bool is_common;
is_common = _lv_area_intersect(area, area, &obj_coords);
if(is_common == false) return false; /*The area is not on the object*/
/*Truncate recursively to the parents*/
lv_obj_t * par = lv_obj_get_parent(obj);
while(par != NULL) {
is_common = _lv_area_intersect(area, area, &par->coords);
if(is_common == false) return false; /*If no common parts with parent break;*/
if(lv_obj_has_flag(par, LV_OBJ_FLAG_HIDDEN)) return
false; /*If the parent is hidden then the child is hidden and won't be drawn*/
par = lv_obj_get_parent(par);
}
return true;
}
bool lv_obj_is_visible(const lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_area_t obj_coords;
lv_coord_t ext_size = _lv_obj_get_ext_draw_size(obj);
lv_area_copy(&obj_coords, &obj->coords);
obj_coords.x1 -= ext_size;
obj_coords.y1 -= ext_size;
obj_coords.x2 += ext_size;
obj_coords.y2 += ext_size;
return lv_obj_area_is_visible(obj, &obj_coords);
}
void lv_obj_set_ext_click_area(lv_obj_t * obj, lv_coord_t size)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_obj_allocate_spec_attr(obj);
obj->spec_attr->ext_click_pad = size;
}
void lv_obj_get_click_area(const lv_obj_t * obj, lv_area_t * area)
{
lv_area_copy(area, &obj->coords);
if(obj->spec_attr) {
area->x1 -= obj->spec_attr->ext_click_pad;
area->x2 += obj->spec_attr->ext_click_pad;
area->y1 -= obj->spec_attr->ext_click_pad;
area->y2 += obj->spec_attr->ext_click_pad;
}
}
bool lv_obj_hit_test(lv_obj_t * obj, const lv_point_t * point)
{
lv_area_t a;
lv_obj_get_click_area(obj, &a);
bool res = _lv_area_is_point_on(&a, point, 0);
if(res == false) return false;
if(lv_obj_has_flag(obj, LV_OBJ_FLAG_ADV_HITTEST)) {
lv_hit_test_info_t hit_info;
hit_info.point = point;
hit_info.res = true;
lv_event_send(obj, LV_EVENT_HIT_TEST, &hit_info);
return hit_info.res;
}
return res;
}
lv_coord_t lv_clamp_width(lv_coord_t width, lv_coord_t min_width, lv_coord_t max_width, lv_coord_t ref_width)
{
if(LV_COORD_IS_PCT(min_width)) min_width = (ref_width * LV_COORD_GET_PCT(min_width)) / 100;
if(LV_COORD_IS_PCT(max_width)) max_width = (ref_width * LV_COORD_GET_PCT(max_width)) / 100;
return LV_CLAMP(min_width, width, max_width);
}
lv_coord_t lv_clamp_height(lv_coord_t height, lv_coord_t min_height, lv_coord_t max_height, lv_coord_t ref_height)
{
if(LV_COORD_IS_PCT(min_height)) min_height = (ref_height * LV_COORD_GET_PCT(min_height)) / 100;
if(LV_COORD_IS_PCT(max_height)) max_height = (ref_height * LV_COORD_GET_PCT(max_height)) / 100;
return LV_CLAMP(min_height, height, max_height);
}
/**********************
* STATIC FUNCTIONS
**********************/
static lv_coord_t calc_content_width(lv_obj_t * obj)
{
lv_obj_scroll_to_x(obj, 0, LV_ANIM_OFF);
lv_coord_t border_width = lv_obj_get_style_border_width(obj, LV_PART_MAIN);
lv_coord_t pad_right = lv_obj_get_style_pad_right(obj, LV_PART_MAIN) + border_width;
lv_coord_t pad_left = lv_obj_get_style_pad_left(obj, LV_PART_MAIN) + border_width;
lv_coord_t self_w;
self_w = lv_obj_get_self_width(obj) + pad_left + pad_right;
lv_coord_t child_res = LV_COORD_MIN;
uint32_t i;
uint32_t child_cnt = lv_obj_get_child_cnt(obj);
/*With RTL find the left most coordinate*/
if(lv_obj_get_style_base_dir(obj, LV_PART_MAIN) == LV_BASE_DIR_RTL) {
for(i = 0; i < child_cnt; i++) {
lv_obj_t * child = obj->spec_attr->children[i];
if(lv_obj_has_flag_any(child, LV_OBJ_FLAG_HIDDEN | LV_OBJ_FLAG_FLOATING)) continue;
if(!lv_obj_is_layout_positioned(child)) {
lv_align_t align = lv_obj_get_style_align(child, 0);
switch(align) {
case LV_ALIGN_DEFAULT:
case LV_ALIGN_TOP_RIGHT:
case LV_ALIGN_BOTTOM_RIGHT:
case LV_ALIGN_RIGHT_MID:
/*Normal right aligns. Other are ignored due to possible circular dependencies*/
child_res = LV_MAX(child_res, obj->coords.x2 - child->coords.x1 + 1);
break;
default:
/* Consider other cases only if x=0 and use the width of the object.
* With x!=0 circular dependency could occur. */
if(lv_obj_get_style_y(child, 0) == 0) {
child_res = LV_MAX(child_res, lv_area_get_width(&child->coords));
}
}
} else {
child_res = LV_MAX(child_res, obj->coords.x2 - child->coords.x1 + 1);
}
}
if(child_res != LV_COORD_MIN) {
child_res += pad_left;
}
}
/*Else find the right most coordinate*/
else {
for(i = 0; i < child_cnt; i++) {
lv_obj_t * child = obj->spec_attr->children[i];
if(lv_obj_has_flag_any(child, LV_OBJ_FLAG_HIDDEN | LV_OBJ_FLAG_FLOATING)) continue;
if(!lv_obj_is_layout_positioned(child)) {
lv_align_t align = lv_obj_get_style_align(child, 0);
switch(align) {
case LV_ALIGN_DEFAULT:
case LV_ALIGN_TOP_LEFT:
case LV_ALIGN_BOTTOM_LEFT:
case LV_ALIGN_LEFT_MID:
/*Normal left aligns.*/
child_res = LV_MAX(child_res, child->coords.x2 - obj->coords.x1 + 1);
break;
default:
/* Consider other cases only if x=0 and use the width of the object.
* With x!=0 circular dependency could occur. */
if(lv_obj_get_style_y(child, 0) == 0) {
child_res = LV_MAX(child_res, lv_area_get_width(&child->coords));
}
}
} else {
child_res = LV_MAX(child_res, child->coords.x2 - obj->coords.x1 + 1);
}
}
if(child_res != LV_COORD_MIN) {
child_res += pad_right;
}
}
if(child_res == LV_COORD_MIN) return self_w;
else return LV_MAX(child_res, self_w);
}
static lv_coord_t calc_content_height(lv_obj_t * obj)
{
lv_obj_scroll_to_y(obj, 0, LV_ANIM_OFF);
lv_coord_t border_width = lv_obj_get_style_border_width(obj, LV_PART_MAIN);
lv_coord_t pad_top = lv_obj_get_style_pad_top(obj, LV_PART_MAIN) + border_width;
lv_coord_t pad_bottom = lv_obj_get_style_pad_bottom(obj, LV_PART_MAIN) + border_width;
lv_coord_t self_h;
self_h = lv_obj_get_self_height(obj) + pad_top + pad_bottom;
lv_coord_t child_res = LV_COORD_MIN;
uint32_t i;
uint32_t child_cnt = lv_obj_get_child_cnt(obj);
for(i = 0; i < child_cnt; i++) {
lv_obj_t * child = obj->spec_attr->children[i];
if(lv_obj_has_flag_any(child, LV_OBJ_FLAG_HIDDEN | LV_OBJ_FLAG_FLOATING)) continue;
if(!lv_obj_is_layout_positioned(child)) {
lv_align_t align = lv_obj_get_style_align(child, 0);
switch(align) {
case LV_ALIGN_DEFAULT:
case LV_ALIGN_TOP_RIGHT:
case LV_ALIGN_TOP_MID:
case LV_ALIGN_TOP_LEFT:
/*Normal top aligns. */
child_res = LV_MAX(child_res, child->coords.y2 - obj->coords.y1 + 1);
break;
default:
/* Consider other cases only if y=0 and use the height of the object.
* With y!=0 circular dependency could occur. */
if(lv_obj_get_style_y(child, 0) == 0) {
child_res = LV_MAX(child_res, lv_area_get_height(&child->coords));
}
break;
}
} else {
child_res = LV_MAX(child_res, child->coords.y2 - obj->coords.y1 + 1);
}
}
if(child_res != LV_COORD_MIN) {
child_res += pad_bottom;
return LV_MAX(child_res, self_h);
} else {
return self_h;
}
}
static void layout_update_core(lv_obj_t * obj)
{
uint32_t i;
uint32_t child_cnt = lv_obj_get_child_cnt(obj);
for(i = 0; i < child_cnt; i++) {
lv_obj_t * child = obj->spec_attr->children[i];
layout_update_core(child);
}
if(obj->layout_inv == 0) return;
obj->layout_inv = 0;
lv_obj_refr_size(obj);
lv_obj_refr_pos(obj);
if(child_cnt > 0) {
uint32_t layout_id = lv_obj_get_style_layout(obj, LV_PART_MAIN);
if(layout_id > 0 && layout_id <= layout_cnt) {
void * user_data = LV_GC_ROOT(_lv_layout_list)[layout_id - 1].user_data;
LV_GC_ROOT(_lv_layout_list)[layout_id - 1].cb(obj, user_data);
}
}
}
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_obj_pos.c | C | apache-2.0 | 34,721 |
/**
* @file lv_obj_pos.h
*
*/
#ifndef LV_OBJ_POS_H
#define LV_OBJ_POS_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "../misc/lv_area.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
struct _lv_obj_t;
typedef void (*lv_layout_update_cb_t)(struct _lv_obj_t *, void * user_data);
typedef struct {
lv_layout_update_cb_t cb;
void * user_data;
} lv_layout_dsc_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Set the relative the position of an object (relative to the parent's top left corner)
* @param obj pointer to an object
* @param x new distance from the left side of the parent plus the parent's left padding
* @param y new distance from the top side of the parent plus the parent's right padding
*/
void lv_obj_set_pos(struct _lv_obj_t * obj, lv_coord_t x, lv_coord_t y);
/**
* Set the x coordinate of a object
* @param obj pointer to an object
* @param x new distance from the left side from the parent plus the parent's left padding
*/
void lv_obj_set_x(struct _lv_obj_t * obj, lv_coord_t x);
/**
* Set the y coordinate of a object
* @param obj pointer to an object
* @param y new distance from the top of the parent plus the parent's top padding
*/
void lv_obj_set_y(struct _lv_obj_t * obj, lv_coord_t y);
/**
* Set the size of an object.
* @param obj pointer to an object
* @param w the new width
* @param h the new height
* @note possible values are:
* pixel simple set the size accordingly
* LV_SIZE_CONTENT set the size to involve all children in the given direction
* LV_SIZE_PCT(x) to set size in percentage of the parent's content area size (the size without paddings).
* x should be in [0..1000]% range
*/
void lv_obj_set_size(struct _lv_obj_t * obj, lv_coord_t w, lv_coord_t h);
/**
* Recalculate the size of the object
* @param obj pointer to an object
* @return true: the size has been changed
*/
bool lv_obj_refr_size(struct _lv_obj_t * obj);
/**
* Set the width of an object
* @param obj pointer to an object
* @param w the new width
* @note possible values are:
* pixel simple set the size accordingly
* LV_SIZE_CONTENT set the size to involve all children in the given direction
* lv_pct(x) to set size in percentage of the parent's content area size (the size without paddings).
* x should be in [0..1000]% range
*/
void lv_obj_set_width(struct _lv_obj_t * obj, lv_coord_t w);
/**
* Set the height of an object
* @param obj pointer to an object
* @param h the new height
* @note possible values are:
* pixel simple set the size accordingly
* LV_SIZE_CONTENT set the size to involve all children in the given direction
* lv_pct(x) to set size in percentage of the parent's content area size (the size without paddings).
* x should be in [0..1000]% range
*/
void lv_obj_set_height(struct _lv_obj_t * obj, lv_coord_t h);
/**
* Set the width reduced by the left and right padding and the border width.
* @param obj pointer to an object
* @param w the width without paddings in pixels
*/
void lv_obj_set_content_width(struct _lv_obj_t * obj, lv_coord_t w);
/**
* Set the height reduced by the top and bottom padding and the border width.
* @param obj pointer to an object
* @param h the height without paddings in pixels
*/
void lv_obj_set_content_height(struct _lv_obj_t * obj, lv_coord_t h);
/**
* Set a layout for an object
* @param obj pointer to an object
* @param layout pointer to a layout descriptor to set
*/
void lv_obj_set_layout(struct _lv_obj_t * obj, uint32_t layout);
/**
* Test whether the and object is positioned by a layout or not
* @param obj pointer to an object to test
* @return true: positioned by a layout; false: not positioned by a layout
*/
bool lv_obj_is_layout_positioned(const struct _lv_obj_t * obj);
/**
* Mark the object for layout update.
* @param obj pointer to an object whose children needs to be updated
*/
void lv_obj_mark_layout_as_dirty(struct _lv_obj_t * obj);
/**
* Update the layout of an object.
* @param obj pointer to an object whose children needs to be updated
*/
void lv_obj_update_layout(const struct _lv_obj_t * obj);
/**
* Regsiter a new layout
* @param cb the layout update callback
* @param user_data custom data that will be passed to `cb`
* @return the ID of the new layout
*/
uint32_t lv_layout_register(lv_layout_update_cb_t cb, void * user_data);
/**
* Change the alignment of an object.
* @param obj pointer to an object to align
* @param align type of alignment (see 'lv_align_t' enum) `LV_ALIGN_OUT_...` can't be used.
*/
void lv_obj_set_align(struct _lv_obj_t * obj, lv_align_t align);
/**
* Change the alignment of an object and set new coordinates.
* Equivalent to:
* lv_obj_set_align(obj, align);
* lv_obj_set_pos(obj, x_ofs, y_ofs);
* @param obj pointer to an object to align
* @param align type of alignment (see 'lv_align_t' enum) `LV_ALIGN_OUT_...` can't be used.
* @param x_ofs x coordinate offset after alignment
* @param y_ofs y coordinate offset after alignment
*/
void lv_obj_align(struct _lv_obj_t * obj, lv_align_t align, lv_coord_t x_ofs, lv_coord_t y_ofs);
/**
* Align an object to an other object.
* @param obj pointer to an object to align
* @param base pointer to an other object (if NULL `obj`s parent is used). 'obj' will be aligned to it.
* @param align type of alignment (see 'lv_align_t' enum)
* @param x_ofs x coordinate offset after alignment
* @param y_ofs y coordinate offset after alignment
* @note if the position or size of `base` changes `obj` needs to be aligned manually again
*/
void lv_obj_align_to(struct _lv_obj_t * obj, const struct _lv_obj_t * base, lv_align_t align, lv_coord_t x_ofs,
lv_coord_t y_ofs);
/**
* Align an object to the center on its parent.
* @param obj pointer to an object to align
* @note if the parent size changes `obj` needs to be aligned manually again
*/
static inline void lv_obj_center(struct _lv_obj_t * obj)
{
lv_obj_align(obj, LV_ALIGN_CENTER, 0, 0);
}
/**
* Copy the coordinates of an object to an area
* @param obj pointer to an object
* @param coords pointer to an area to store the coordinates
*/
void lv_obj_get_coords(const struct _lv_obj_t * obj, lv_area_t * coords);
/**
* Get the x coordinate of object.
* @param obj pointer to an object
* @return distance of `obj` from the left side of its parent plus the parent's left padding
* @note The position of the object is recalculated only on the next redraw. To force coordinate recalculation
* call `lv_obj_update_layout(obj)`.
* @note Zero return value means the object is on the left padding of the parent, and not on the left edge.
* @note Scrolling of the parent doesn't change the returned value.
* @note The returned value is always the distance from the parent even if `obj` is positioned by a layout.
*/
lv_coord_t lv_obj_get_x(const struct _lv_obj_t * obj);
/**
* Get the x2 coordinate of object.
* @param obj pointer to an object
* @return distance of `obj` from the right side of its parent plus the parent's right padding
* @note The position of the object is recalculated only on the next redraw. To force coordinate recalculation
* call `lv_obj_update_layout(obj)`.
* @note Zero return value means the object is on the right padding of the parent, and not on the right edge.
* @note Scrolling of the parent doesn't change the returned value.
* @note The returned value is always the distance from the parent even if `obj` is positioned by a layout.
*/
lv_coord_t lv_obj_get_x2(const struct _lv_obj_t * obj);
/**
* Get the y coordinate of object.
* @param obj pointer to an object
* @return distance of `obj` from the top side of its parent plus the parent's top padding
* @note The position of the object is recalculated only on the next redraw. To force coordinate recalculation
* call `lv_obj_update_layout(obj)`.
* @note Zero return value means the object is on the top padding of the parent, and not on the top edge.
* @note Scrolling of the parent doesn't change the returned value.
* @note The returned value is always the distance from the parent even if `obj` is positioned by a layout.
*/
lv_coord_t lv_obj_get_y(const struct _lv_obj_t * obj);
/**
* Get the y2 coordinate of object.
* @param obj pointer to an object
* @return distance of `obj` from the bottom side of its parent plus the parent's bottom padding
* @note The position of the object is recalculated only on the next redraw. To force coordinate recalculation
* call `lv_obj_update_layout(obj)`.
* @note Zero return value means the object is on the bottom padding of the parent, and not on the bottom edge.
* @note Scrolling of the parent doesn't change the returned value.
* @note The returned value is always the distance from the parent even if `obj` is positioned by a layout.
*/
lv_coord_t lv_obj_get_y2(const struct _lv_obj_t * obj);
/**
* Get the width of an object
* @param obj pointer to an object
* @note The position of the object is recalculated only on the next redraw. To force coordinate recalculation
* call `lv_obj_update_layout(obj)`.
* @return the width in pixels
*/
lv_coord_t lv_obj_get_width(const struct _lv_obj_t * obj);
/**
* Get the height of an object
* @param obj pointer to an object
* @note The position of the object is recalculated only on the next redraw. To force coordinate recalculation
* call `lv_obj_update_layout(obj)`.
* @return the height in pixels
*/
lv_coord_t lv_obj_get_height(const struct _lv_obj_t * obj);
/**
* Get the width reduced by the left and right padding and the border width.
* @param obj pointer to an object
* @note The position of the object is recalculated only on the next redraw. To force coordinate recalculation
* call `lv_obj_update_layout(obj)`.
* @return the width which still fits into its parent without causing overflow (making the parent scrollable)
*/
lv_coord_t lv_obj_get_content_width(const struct _lv_obj_t * obj);
/**
* Get the height reduced by the top and bottom padding and the border width.
* @param obj pointer to an object
* @note The position of the object is recalculated only on the next redraw. To force coordinate recalculation
* call `lv_obj_update_layout(obj)`.
* @return the height which still fits into the parent without causing overflow (making the parent scrollable)
*/
lv_coord_t lv_obj_get_content_height(const struct _lv_obj_t * obj);
/**
* Get the area reduced by the paddings and the border width.
* @param obj pointer to an object
* @note The position of the object is recalculated only on the next redraw. To force coordinate recalculation
* call `lv_obj_update_layout(obj)`.
* @param area the area which still fits into the parent without causing overflow (making the parent scrollable)
*/
void lv_obj_get_content_coords(const struct _lv_obj_t * obj, lv_area_t * area);
/**
* Get the width occupied by the "parts" of the widget. E.g. the width of all columns of a table.
* @param obj pointer to an objects
* @return the width of the virtually drawn content
* @note This size independent from the real size of the widget.
* It just tells how large the internal ("virtual") content is.
*/
lv_coord_t lv_obj_get_self_width(const struct _lv_obj_t * obj);
/**
* Get the height occupied by the "parts" of the widget. E.g. the height of all rows of a table.
* @param obj pointer to an objects
* @return the width of the virtually drawn content
* @note This size independent from the real size of the widget.
* It just tells how large the internal ("virtual") content is.
*/
lv_coord_t lv_obj_get_self_height(const struct _lv_obj_t * obj);
/**
* Handle if the size of the internal ("virtual") content of an object has changed.
* @param obj pointer to an object
* @return false: nothing happened; true: refresh happened
*/
bool lv_obj_refresh_self_size(struct _lv_obj_t * obj);
void lv_obj_refr_pos(struct _lv_obj_t * obj);
void lv_obj_move_to(struct _lv_obj_t * obj, lv_coord_t x, lv_coord_t y);
void lv_obj_move_children_by(struct _lv_obj_t * obj, lv_coord_t x_diff, lv_coord_t y_diff, bool ignore_floating);
/**
* Mark an area of an object as invalid.
* The area will be truncated to the object's area and marked for redraw.
* @param obj pointer to an object
* @param area the area to redraw
*/
void lv_obj_invalidate_area(const struct _lv_obj_t * obj, const lv_area_t * area);
/**
* Mark the object as invalid to redrawn its area
* @param obj pointer to an object
*/
void lv_obj_invalidate(const struct _lv_obj_t * obj);
/**
* Tell whether an area of an object is visible (even partially) now or not
* @param obj pointer to an object
* @param area the are to check. The visible part of the area will be written back here.
* @return true visible; false not visible (hidden, out of parent, on other screen, etc)
*/
bool lv_obj_area_is_visible(const struct _lv_obj_t * obj, lv_area_t * area);
/**
* Tell whether an object is visible (even partially) now or not
* @param obj pointer to an object
* @return true: visible; false not visible (hidden, out of parent, on other screen, etc)
*/
bool lv_obj_is_visible(const struct _lv_obj_t * obj);
/**
* Set the size of an extended clickable area
* @param obj pointer to an object
* @param size extended clickable area in all 4 directions [px]
*/
void lv_obj_set_ext_click_area(struct _lv_obj_t * obj, lv_coord_t size);
/**
* Get the an area where to object can be clicked.
* It's the object's normal area plus the extended click area.
* @param obj pointer to an object
* @param area store the result area here
*/
void lv_obj_get_click_area(const struct _lv_obj_t * obj, lv_area_t * area);
/**
* Hit-test an object given a particular point in screen space.
* @param obj object to hit-test
* @param point screen-space point (absolute coordinate)
* @return true: if the object is considered under the point
*/
bool lv_obj_hit_test(struct _lv_obj_t * obj, const lv_point_t * point);
/**
* Clamp a width between min and max width. If the min/max width is in percentage value use the ref_width
* @param width width to clamp
* @param min_width the minimal width
* @param max_width the maximal width
* @param ref_width the reference width used when min/max width is in percentage
* @return the clamped width
*/
lv_coord_t lv_clamp_width(lv_coord_t width, lv_coord_t min_width, lv_coord_t max_width, lv_coord_t ref_width);
/**
* Clamp a height between min and max height. If the min/max height is in percentage value use the ref_height
* @param height height to clamp
* @param min_height the minimal height
* @param max_height the maximal height
* @param ref_height the reference height used when min/max height is in percentage
* @return the clamped height
*/
lv_coord_t lv_clamp_height(lv_coord_t height, lv_coord_t min_height, lv_coord_t max_height, lv_coord_t ref_height);
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_OBJ_POS_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_obj_pos.h | C | apache-2.0 | 16,555 |
/**
* @file lv_obj_scroll.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_obj_scroll.h"
#include "lv_obj.h"
#include "lv_indev.h"
#include "lv_disp.h"
#include "lv_indev_scroll.h"
/*********************
* DEFINES
*********************/
#define MY_CLASS &lv_obj_class
#define SCROLL_ANIM_TIME_MIN 200 /*ms*/
#define SCROLL_ANIM_TIME_MAX 400 /*ms*/
#define SCROLLBAR_MIN_SIZE (LV_DPX(10))
/**********************
* TYPEDEFS
**********************/
/**********************
* GLOBAL PROTOTYPES
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static void scroll_by_raw(lv_obj_t * obj, lv_coord_t x, lv_coord_t y);
static void scroll_x_anim(void * obj, int32_t v);
static void scroll_y_anim(void * obj, int32_t v);
static void scroll_anim_ready_cb(lv_anim_t * a);
static void scroll_area_into_view(const lv_area_t * area, lv_obj_t * child, lv_point_t * scroll_value,
lv_anim_enable_t anim_en);
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
/*=====================
* Setter functions
*====================*/
void lv_obj_set_scrollbar_mode(lv_obj_t * obj, lv_scrollbar_mode_t mode)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_obj_allocate_spec_attr(obj);
if(obj->spec_attr->scrollbar_mode == mode) return;
obj->spec_attr->scrollbar_mode = mode;
lv_obj_invalidate(obj);
}
void lv_obj_set_scroll_dir(lv_obj_t * obj, lv_dir_t dir)
{
lv_obj_allocate_spec_attr(obj);
if(dir != obj->spec_attr->scroll_dir) {
obj->spec_attr->scroll_dir = dir;
}
}
void lv_obj_set_scroll_snap_x(lv_obj_t * obj, lv_scroll_snap_t align)
{
lv_obj_allocate_spec_attr(obj);
obj->spec_attr->scroll_snap_x = align;
}
void lv_obj_set_scroll_snap_y(lv_obj_t * obj, lv_scroll_snap_t align)
{
lv_obj_allocate_spec_attr(obj);
obj->spec_attr->scroll_snap_y = align;
}
/*=====================
* Getter functions
*====================*/
lv_scrollbar_mode_t lv_obj_get_scrollbar_mode(const lv_obj_t * obj)
{
if(obj->spec_attr) return obj->spec_attr->scrollbar_mode;
else return LV_SCROLLBAR_MODE_AUTO;
}
lv_dir_t lv_obj_get_scroll_dir(const lv_obj_t * obj)
{
if(obj->spec_attr) return obj->spec_attr->scroll_dir;
else return LV_DIR_ALL;
}
lv_scroll_snap_t lv_obj_get_scroll_snap_x(const lv_obj_t * obj)
{
if(obj->spec_attr) return obj->spec_attr->scroll_snap_x;
else return LV_SCROLL_SNAP_NONE;
}
lv_scroll_snap_t lv_obj_get_scroll_snap_y(const lv_obj_t * obj)
{
if(obj->spec_attr) return obj->spec_attr->scroll_snap_y;
else return LV_SCROLL_SNAP_NONE;
}
lv_coord_t lv_obj_get_scroll_x(const lv_obj_t * obj)
{
if(obj->spec_attr == NULL) return 0;
return -obj->spec_attr->scroll.x;
}
lv_coord_t lv_obj_get_scroll_y(const lv_obj_t * obj)
{
if(obj->spec_attr == NULL) return 0;
return -obj->spec_attr->scroll.y;
}
lv_coord_t lv_obj_get_scroll_top(lv_obj_t * obj)
{
if(obj->spec_attr == NULL) return 0;
return -obj->spec_attr->scroll.y;
}
lv_coord_t lv_obj_get_scroll_bottom(lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_coord_t child_res = LV_COORD_MIN;
uint32_t i;
uint32_t child_cnt = lv_obj_get_child_cnt(obj);
for(i = 0; i < child_cnt; i++) {
lv_obj_t * child = obj->spec_attr->children[i];
if(lv_obj_has_flag_any(child, LV_OBJ_FLAG_HIDDEN | LV_OBJ_FLAG_FLOATING)) continue;
child_res = LV_MAX(child_res, child->coords.y2);
}
lv_coord_t pad_top = lv_obj_get_style_pad_top(obj, LV_PART_MAIN);
lv_coord_t pad_bottom = lv_obj_get_style_pad_bottom(obj, LV_PART_MAIN);
lv_coord_t border_width = lv_obj_get_style_border_width(obj, LV_PART_MAIN);
if(child_res != LV_COORD_MIN) {
child_res -= (obj->coords.y2 - pad_bottom - border_width);
}
lv_coord_t self_h = lv_obj_get_self_height(obj);
self_h = self_h - (lv_obj_get_height(obj) - pad_top - pad_bottom - 2 * border_width);
self_h -= lv_obj_get_scroll_y(obj);
return LV_MAX(child_res, self_h);
}
lv_coord_t lv_obj_get_scroll_left(lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
/*Normally can't scroll the object out on the left.
*So simply use the current scroll position as "left size"*/
if(lv_obj_get_style_base_dir(obj, LV_PART_MAIN) != LV_BASE_DIR_RTL) {
if(obj->spec_attr == NULL) return 0;
return -obj->spec_attr->scroll.x;
}
/*With RTL base direction scrolling the left is normal so find the left most coordinate*/
lv_coord_t pad_right = lv_obj_get_style_pad_right(obj, LV_PART_MAIN);
lv_coord_t pad_left = lv_obj_get_style_pad_left(obj, LV_PART_MAIN);
lv_coord_t border_width = lv_obj_get_style_border_width(obj, LV_PART_MAIN);
lv_coord_t child_res = 0;
uint32_t i;
lv_coord_t x1 = LV_COORD_MAX;
uint32_t child_cnt = lv_obj_get_child_cnt(obj);
for(i = 0; i < child_cnt; i++) {
lv_obj_t * child = obj->spec_attr->children[i];
if(lv_obj_has_flag_any(child, LV_OBJ_FLAG_HIDDEN | LV_OBJ_FLAG_FLOATING)) continue;
x1 = LV_MIN(x1, child->coords.x1);
}
if(x1 != LV_COORD_MAX) {
child_res = x1;
child_res = (obj->coords.x1 + pad_left + border_width) - child_res;
}
else {
child_res = LV_COORD_MIN;
}
lv_coord_t self_w = lv_obj_get_self_width(obj);
self_w = self_w - (lv_obj_get_width(obj) - pad_right - pad_left - 2 * border_width);
self_w += lv_obj_get_scroll_x(obj);
return LV_MAX(child_res, self_w);
}
lv_coord_t lv_obj_get_scroll_right(lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
/*With RTL base dir can't scroll to the object out on the right.
*So simply use the current scroll position as "right size"*/
if(lv_obj_get_style_base_dir(obj, LV_PART_MAIN) == LV_BASE_DIR_RTL) {
if(obj->spec_attr == NULL) return 0;
return obj->spec_attr->scroll.x;
}
/*With other base direction (LTR) scrolling to the right is normal so find the right most coordinate*/
lv_coord_t child_res = LV_COORD_MIN;
uint32_t i;
uint32_t child_cnt = lv_obj_get_child_cnt(obj);
for(i = 0; i < child_cnt; i++) {
lv_obj_t * child = obj->spec_attr->children[i];
if(lv_obj_has_flag_any(child, LV_OBJ_FLAG_HIDDEN | LV_OBJ_FLAG_FLOATING)) continue;
child_res = LV_MAX(child_res, child->coords.x2);
}
lv_coord_t pad_right = lv_obj_get_style_pad_right(obj, LV_PART_MAIN);
lv_coord_t pad_left = lv_obj_get_style_pad_left(obj, LV_PART_MAIN);
lv_coord_t border_width = lv_obj_get_style_border_width(obj, LV_PART_MAIN);
if(child_res != LV_COORD_MIN) {
child_res -= (obj->coords.x2 - pad_right - border_width);
}
lv_coord_t self_w;
self_w = lv_obj_get_self_width(obj);
self_w = self_w - (lv_obj_get_width(obj) - pad_right - pad_left - 2 * border_width);
self_w -= lv_obj_get_scroll_x(obj);
return LV_MAX(child_res, self_w);
}
void lv_obj_get_scroll_end(struct _lv_obj_t * obj, lv_point_t * end)
{
lv_anim_t * a;
a = lv_anim_get(obj, scroll_x_anim);
end->x = a ? -a->end_value : lv_obj_get_scroll_x(obj);
a = lv_anim_get(obj, scroll_y_anim);
end->y = a ? -a->end_value : lv_obj_get_scroll_y(obj);
}
/*=====================
* Other functions
*====================*/
void lv_obj_scroll_by(lv_obj_t * obj, lv_coord_t x, lv_coord_t y, lv_anim_enable_t anim_en)
{
if(x == 0 && y == 0) return;
if(anim_en == LV_ANIM_ON) {
lv_disp_t * d = lv_obj_get_disp(obj);
lv_anim_t a;
lv_anim_init(&a);
lv_anim_set_var(&a, obj);
lv_anim_set_ready_cb(&a, scroll_anim_ready_cb);
if(x) {
uint32_t t = lv_anim_speed_to_time((lv_disp_get_hor_res(d) * 2) >> 2, 0, x);
if(t < SCROLL_ANIM_TIME_MIN) t = SCROLL_ANIM_TIME_MIN;
if(t > SCROLL_ANIM_TIME_MAX) t = SCROLL_ANIM_TIME_MAX;
lv_anim_set_time(&a, t);
lv_coord_t sx = lv_obj_get_scroll_x(obj);
lv_anim_set_values(&a, -sx, -sx + x);
lv_anim_set_exec_cb(&a, scroll_x_anim);
lv_anim_set_path_cb(&a, lv_anim_path_ease_out);
lv_res_t res;
res = lv_event_send(obj, LV_EVENT_SCROLL_BEGIN, &a);
if(res != LV_RES_OK) return;
lv_anim_start(&a);
}
if(y) {
uint32_t t = lv_anim_speed_to_time((lv_disp_get_ver_res(d) * 2) >> 2, 0, y);
if(t < SCROLL_ANIM_TIME_MIN) t = SCROLL_ANIM_TIME_MIN;
if(t > SCROLL_ANIM_TIME_MAX) t = SCROLL_ANIM_TIME_MAX;
lv_anim_set_time(&a, t);
lv_coord_t sy = lv_obj_get_scroll_y(obj);
lv_anim_set_values(&a, -sy, -sy + y);
lv_anim_set_exec_cb(&a, scroll_y_anim);
lv_anim_set_path_cb(&a, lv_anim_path_ease_out);
lv_res_t res;
res = lv_event_send(obj, LV_EVENT_SCROLL_BEGIN, &a);
if(res != LV_RES_OK) return;
lv_anim_start(&a);
}
}
else {
/*Remove pending animations*/
bool y_del = lv_anim_del(obj, scroll_y_anim);
bool x_del = lv_anim_del(obj, scroll_x_anim);
scroll_by_raw(obj, x, y);
if(y_del || x_del) {
lv_res_t res;
res = lv_event_send(obj, LV_EVENT_SCROLL_END, NULL);
if(res != LV_RES_OK) return;
}
}
}
void lv_obj_scroll_to(lv_obj_t * obj, lv_coord_t x, lv_coord_t y, lv_anim_enable_t anim_en)
{
lv_obj_scroll_to_x(obj, x, anim_en);
lv_obj_scroll_to_y(obj, y, anim_en);
}
void lv_obj_scroll_to_x(lv_obj_t * obj, lv_coord_t x, lv_anim_enable_t anim_en)
{
lv_anim_del(obj, scroll_x_anim);
/*Don't let scroll more then naturally possible by the size of the content*/
if(lv_obj_get_style_base_dir(obj, LV_PART_MAIN) != LV_BASE_DIR_RTL) {
if(x < 0) x = 0;
if(x > 0) {
lv_coord_t scroll_max = lv_obj_get_scroll_left(obj) + lv_obj_get_scroll_right(obj);
if(scroll_max < 0) scroll_max = 0;
if(x > scroll_max) x = scroll_max;
}
}
else {
if(x > 0) x = 0;
if(x < 0) {
lv_coord_t scroll_max = lv_obj_get_scroll_left(obj) + lv_obj_get_scroll_right(obj);
if(scroll_max < 0) scroll_max = 0;
if(x < -scroll_max) x = -scroll_max;
}
}
lv_coord_t scroll_x = lv_obj_get_scroll_x(obj);
lv_coord_t diff = -x + scroll_x;
lv_obj_scroll_by(obj, diff, 0, anim_en);
}
void lv_obj_scroll_to_y(lv_obj_t * obj, lv_coord_t y, lv_anim_enable_t anim_en)
{
lv_anim_del(obj, scroll_y_anim);
/*Don't let scroll more then naturally possible by the size of the content*/
if(y < 0) y = 0;
if(y > 0) {
lv_coord_t scroll_max = lv_obj_get_scroll_top(obj) + lv_obj_get_scroll_bottom(obj);
if(scroll_max < 0) scroll_max = 0;
if(y > scroll_max) y = scroll_max;
}
lv_coord_t scroll_y = lv_obj_get_scroll_y(obj);
lv_coord_t diff = -y + scroll_y;
lv_obj_scroll_by(obj, 0, diff, anim_en);
}
void lv_obj_scroll_to_view(lv_obj_t * obj, lv_anim_enable_t anim_en)
{
/*Be sure the screens layout is correct*/
lv_obj_update_layout(obj);
lv_point_t p = {0, 0};
scroll_area_into_view(&obj->coords, obj, &p, anim_en);
}
void lv_obj_scroll_to_view_recursive(lv_obj_t * obj, lv_anim_enable_t anim_en)
{
/*Be sure the screens layout is correct*/
lv_obj_update_layout(obj);
lv_point_t p = {0, 0};
lv_obj_t * child = obj;
lv_obj_t * parent = lv_obj_get_parent(child);
while(parent) {
scroll_area_into_view(&obj->coords, child, &p, anim_en);
child = parent;
parent = lv_obj_get_parent(parent);
}
}
bool lv_obj_is_scrolling(const lv_obj_t * obj)
{
lv_indev_t * indev = lv_indev_get_next(NULL);
while(indev) {
if(lv_indev_get_scroll_obj(indev) == obj) return true;
indev = lv_indev_get_next(indev);
}
return false;
}
void lv_obj_update_snap(lv_obj_t * obj, lv_anim_enable_t anim_en)
{
lv_obj_update_layout(obj);
lv_point_t p;
lv_indev_scroll_get_snap_dist(obj, &p);
lv_obj_scroll_by(obj, p.x, p.y, anim_en);
}
void lv_obj_get_scrollbar_area(lv_obj_t * obj, lv_area_t * hor_area, lv_area_t * ver_area)
{
lv_area_set(hor_area, 0, 0, -1, -1);
lv_area_set(ver_area, 0, 0, -1, -1);
if(lv_obj_has_flag(obj, LV_OBJ_FLAG_SCROLLABLE) == false) return;
lv_dir_t sm = lv_obj_get_scrollbar_mode(obj);
if(sm == LV_SCROLLBAR_MODE_OFF) return;
/*If there is no indev scrolling this object but `mode==active` return*/
lv_indev_t * indev = lv_indev_get_next(NULL);
if(sm == LV_SCROLLBAR_MODE_ACTIVE) {
while(indev) {
if(lv_indev_get_scroll_obj(indev) == obj) break;
indev = lv_indev_get_next(indev);
}
if(indev == NULL) return;
}
lv_coord_t st = lv_obj_get_scroll_top(obj);
lv_coord_t sb = lv_obj_get_scroll_bottom(obj);
lv_coord_t sl = lv_obj_get_scroll_left(obj);
lv_coord_t sr = lv_obj_get_scroll_right(obj);
lv_dir_t dir = lv_obj_get_scroll_dir(obj);
bool ver_draw = false;
if((dir & LV_DIR_VER) &&
((sm == LV_SCROLLBAR_MODE_ON) ||
(sm == LV_SCROLLBAR_MODE_AUTO && (st > 0 || sb > 0)) ||
(sm == LV_SCROLLBAR_MODE_ACTIVE && lv_indev_get_scroll_dir(indev) == LV_DIR_VER))) {
ver_draw = true;
}
bool hor_draw = false;
if((dir & LV_DIR_HOR) &&
((sm == LV_SCROLLBAR_MODE_ON) ||
(sm == LV_SCROLLBAR_MODE_AUTO && (sl > 0 || sr > 0)) ||
(sm == LV_SCROLLBAR_MODE_ACTIVE && lv_indev_get_scroll_dir(indev) == LV_DIR_HOR))) {
hor_draw = true;
}
if(!hor_draw && !ver_draw) return;
bool rtl = lv_obj_get_style_base_dir(obj, LV_PART_SCROLLBAR) == LV_BASE_DIR_RTL ? true : false;
lv_coord_t end_space = lv_obj_get_style_pad_top(obj, LV_PART_SCROLLBAR);
lv_coord_t side_space = lv_obj_get_style_pad_right(obj, LV_PART_SCROLLBAR);
lv_coord_t tickness = lv_obj_get_style_width(obj, LV_PART_SCROLLBAR);
lv_coord_t obj_h = lv_obj_get_height(obj);
lv_coord_t obj_w = lv_obj_get_width(obj);
lv_coord_t ver_reg_space = ver_draw ? tickness + side_space : 0;
lv_coord_t hor_req_space = hor_draw ? tickness + side_space : 0;
lv_coord_t rem;
if(lv_obj_get_style_bg_opa(obj, LV_PART_SCROLLBAR) < LV_OPA_MIN &&
lv_obj_get_style_border_opa(obj, LV_PART_SCROLLBAR) < LV_OPA_MIN) {
return;
}
/*Draw horizontal scrollbar if the mode is ON or can be scrolled in this direction*/
lv_coord_t content_h = obj_h + st + sb;
if(ver_draw && content_h) {
ver_area->y1 = obj->coords.y1;
ver_area->y2 = obj->coords.y2;
if(rtl) {
ver_area->x1 = obj->coords.x1 + side_space;
ver_area->x2 = ver_area->x1 + tickness - 1;
}
else {
ver_area->x2 = obj->coords.x2 - side_space;
ver_area->x1 = ver_area->x2 - tickness + 1;
}
lv_coord_t sb_h = ((obj_h - end_space * 2 - hor_req_space) * obj_h) / content_h;
sb_h = LV_MAX(sb_h, SCROLLBAR_MIN_SIZE);
rem = (obj_h - end_space * 2 - hor_req_space) -
sb_h; /*Remaining size from the scrollbar track that is not the scrollbar itself*/
lv_coord_t scroll_h = content_h - obj_h; /*The size of the content which can be really scrolled*/
if(scroll_h <= 0) {
ver_area->y1 = obj->coords.y1 + end_space;
ver_area->y2 = obj->coords.y2 - end_space - hor_req_space - 1;
}
else {
lv_coord_t sb_y = (rem * sb) / scroll_h;
sb_y = rem - sb_y;
ver_area->y1 = obj->coords.y1 + sb_y + end_space;
ver_area->y2 = ver_area->y1 + sb_h - 1;
if(ver_area->y1 < obj->coords.y1 + end_space) {
ver_area->y1 = obj->coords.y1 + end_space;
if(ver_area->y1 + SCROLLBAR_MIN_SIZE > ver_area->y2)ver_area->y2 = ver_area->y1 + SCROLLBAR_MIN_SIZE;
}
if(ver_area->y2 > obj->coords.y2 - hor_req_space - end_space) {
ver_area->y2 = obj->coords.y2 - hor_req_space - end_space;
if(ver_area->y2 - SCROLLBAR_MIN_SIZE < ver_area->y1)ver_area->y1 = ver_area->y2 - SCROLLBAR_MIN_SIZE;
}
}
}
/*Draw horizontal scrollbar if the mode is ON or can be scrolled in this direction*/
lv_coord_t content_w = obj_w + sl + sr;
if(hor_draw && content_w) {
hor_area->y2 = obj->coords.y2 - side_space;
hor_area->y1 = hor_area->y2 - tickness + 1;
hor_area->x1 = obj->coords.x1;
hor_area->x2 = obj->coords.x2;
lv_coord_t sb_w = ((obj_w - end_space * 2 - ver_reg_space) * obj_w) / content_w;
sb_w = LV_MAX(sb_w, SCROLLBAR_MIN_SIZE);
rem = (obj_w - end_space * 2 - ver_reg_space) -
sb_w; /*Remaining size from the scrollbar track that is not the scrollbar itself*/
lv_coord_t scroll_w = content_w - obj_w; /*The size of the content which can be really scrolled*/
if(scroll_w <= 0) {
if(rtl) {
hor_area->x1 = obj->coords.x1 + end_space + ver_reg_space - 1;
hor_area->x2 = obj->coords.x2 - end_space;
}
else {
hor_area->x1 = obj->coords.x1 + end_space;
hor_area->x2 = obj->coords.x2 - end_space - ver_reg_space - 1;
}
}
else {
lv_coord_t sb_x = (rem * sr) / scroll_w;
sb_x = rem - sb_x;
if(rtl) {
hor_area->x1 = obj->coords.x1 + sb_x + end_space + ver_reg_space;
hor_area->x2 = hor_area->x1 + sb_w - 1;
if(hor_area->x1 < obj->coords.x1 + end_space + ver_reg_space) {
hor_area->x1 = obj->coords.x1 + end_space + ver_reg_space;
if(hor_area->x1 + SCROLLBAR_MIN_SIZE > hor_area->x2) hor_area->x2 = hor_area->x1 + SCROLLBAR_MIN_SIZE;
}
if(hor_area->x2 > obj->coords.x2 - end_space) {
hor_area->x2 = obj->coords.x2 - end_space;
if(hor_area->x2 - SCROLLBAR_MIN_SIZE < hor_area->x1) hor_area->x1 = hor_area->x2 - SCROLLBAR_MIN_SIZE;
}
}
else {
hor_area->x1 = obj->coords.x1 + sb_x + end_space;
hor_area->x2 = hor_area->x1 + sb_w - 1;
if(hor_area->x1 < obj->coords.x1 + end_space) {
hor_area->x1 = obj->coords.x1 + end_space;
if(hor_area->x1 + SCROLLBAR_MIN_SIZE > hor_area->x2) hor_area->x2 = hor_area->x1 + SCROLLBAR_MIN_SIZE;
}
if(hor_area->x2 > obj->coords.x2 - ver_reg_space - end_space) {
hor_area->x2 = obj->coords.x2 - ver_reg_space - end_space;
if(hor_area->x2 - SCROLLBAR_MIN_SIZE < hor_area->x1) hor_area->x1 = hor_area->x2 - SCROLLBAR_MIN_SIZE;
}
}
}
}
}
void lv_obj_scrollbar_invalidate(lv_obj_t * obj)
{
lv_area_t hor_area;
lv_area_t ver_area;
lv_obj_get_scrollbar_area(obj, &hor_area, &ver_area);
if(lv_area_get_size(&hor_area) <= 0 && lv_area_get_size(&ver_area) <= 0) return;
if(lv_area_get_size(&hor_area) > 0) lv_obj_invalidate_area(obj, &hor_area);
if(lv_area_get_size(&ver_area) > 0) lv_obj_invalidate_area(obj, &ver_area);
}
void lv_obj_readjust_scroll(lv_obj_t * obj, lv_anim_enable_t anim_en)
{
/*Be sure the bottom side is not remains scrolled in*/
/*With snapping the content can't be scrolled in*/
if(lv_obj_get_scroll_snap_y(obj) == LV_SCROLL_SNAP_NONE) {
lv_coord_t st = lv_obj_get_scroll_top(obj);
lv_coord_t sb = lv_obj_get_scroll_bottom(obj);
if(sb < 0 && st > 0) {
sb = LV_MIN(st, -sb);
lv_obj_scroll_by(obj, 0, sb, anim_en);
}
}
if(lv_obj_get_scroll_snap_x(obj) == LV_SCROLL_SNAP_NONE) {
lv_coord_t sl = lv_obj_get_scroll_left(obj);
lv_coord_t sr = lv_obj_get_scroll_right(obj);
if(lv_obj_get_style_base_dir(obj, LV_PART_MAIN) != LV_BASE_DIR_RTL) {
/*Be sure the left side is not remains scrolled in*/
if(sr < 0 && sl > 0) {
sr = LV_MIN(sl, -sr);
lv_obj_scroll_by(obj, sr, 0, anim_en);
}
}
else {
/*Be sure the right side is not remains scrolled in*/
if(sl < 0 && sr > 0) {
sr = LV_MIN(sr, -sl);
lv_obj_scroll_by(obj, sl, 0, anim_en);
}
}
}
}
/**********************
* STATIC FUNCTIONS
**********************/
static void scroll_by_raw(lv_obj_t * obj, lv_coord_t x, lv_coord_t y)
{
if(x == 0 && y == 0) return;
lv_obj_allocate_spec_attr(obj);
obj->spec_attr->scroll.x += x;
obj->spec_attr->scroll.y += y;
lv_obj_move_children_by(obj, x, y, true);
lv_res_t res = lv_event_send(obj, LV_EVENT_SCROLL, NULL);
if(res != LV_RES_OK) return;
lv_obj_invalidate(obj);
}
static void scroll_x_anim(void * obj, int32_t v)
{
scroll_by_raw(obj, v + lv_obj_get_scroll_x(obj), 0);
}
static void scroll_y_anim(void * obj, int32_t v)
{
scroll_by_raw(obj, 0, v + lv_obj_get_scroll_y(obj));
}
static void scroll_anim_ready_cb(lv_anim_t * a)
{
lv_event_send(a->var, LV_EVENT_SCROLL_END, NULL);
}
static void scroll_area_into_view(const lv_area_t * area, lv_obj_t * child, lv_point_t * scroll_value,
lv_anim_enable_t anim_en)
{
lv_obj_t * parent = lv_obj_get_parent(child);
if(!lv_obj_has_flag(parent, LV_OBJ_FLAG_SCROLLABLE)) return;
lv_dir_t scroll_dir = lv_obj_get_scroll_dir(parent);
lv_coord_t snap_goal = 0;
lv_coord_t act = 0;
const lv_area_t * area_tmp;
lv_coord_t y_scroll = 0;
lv_scroll_snap_t snap_y = lv_obj_get_scroll_snap_y(parent);
if(snap_y != LV_SCROLL_SNAP_NONE) area_tmp = &child->coords;
else area_tmp = area;
lv_coord_t border_width = lv_obj_get_style_border_width(parent, LV_PART_MAIN);
lv_coord_t ptop = lv_obj_get_style_pad_top(parent, LV_PART_MAIN) + border_width;
lv_coord_t pbottom = lv_obj_get_style_pad_bottom(parent, LV_PART_MAIN) + border_width;
lv_coord_t top_diff = parent->coords.y1 + ptop - area_tmp->y1 - scroll_value->y;
lv_coord_t bottom_diff = -(parent->coords.y2 - pbottom - area_tmp->y2 - scroll_value->y);
lv_coord_t parent_h = lv_obj_get_height(parent) - ptop - pbottom;
if((top_diff >= 0 && bottom_diff >= 0)) y_scroll = 0;
else if(top_diff > 0) {
y_scroll = top_diff;
/*Do not let scrolling in*/
lv_coord_t st = lv_obj_get_scroll_top(parent);
if(st - y_scroll < 0) y_scroll = 0;
}
else if(bottom_diff > 0) {
y_scroll = -bottom_diff;
/*Do not let scrolling in*/
lv_coord_t sb = lv_obj_get_scroll_bottom(parent);
if(sb + y_scroll < 0) y_scroll = 0;
}
switch(snap_y) {
case LV_SCROLL_SNAP_START:
snap_goal = parent->coords.y1 + ptop;
act = area_tmp->y1 + y_scroll;
y_scroll += snap_goal - act;
break;
case LV_SCROLL_SNAP_END:
snap_goal = parent->coords.y2 - pbottom;
act = area_tmp->y2 + y_scroll;
y_scroll += snap_goal - act;
break;
case LV_SCROLL_SNAP_CENTER:
snap_goal = parent->coords.y1 + ptop + parent_h / 2;
act = lv_area_get_height(area_tmp) / 2 + area_tmp->y1 + y_scroll;
y_scroll += snap_goal - act;
break;
}
lv_coord_t x_scroll = 0;
lv_scroll_snap_t snap_x = lv_obj_get_scroll_snap_x(parent);
if(snap_x != LV_SCROLL_SNAP_NONE) area_tmp = &child->coords;
else area_tmp = area;
lv_coord_t pleft = lv_obj_get_style_pad_left(parent, LV_PART_MAIN) + border_width;
lv_coord_t pright = lv_obj_get_style_pad_right(parent, LV_PART_MAIN) + border_width;
lv_coord_t left_diff = parent->coords.x1 + pleft - area_tmp->x1 - scroll_value->x;
lv_coord_t right_diff = -(parent->coords.x2 - pright - area_tmp->x2 - scroll_value->x);
if((left_diff >= 0 && right_diff >= 0)) x_scroll = 0;
else if(left_diff > 0) {
x_scroll = left_diff;
/*Do not let scrolling in*/
lv_coord_t sl = lv_obj_get_scroll_left(parent);
if(sl + x_scroll > 0) x_scroll = 0;
}
else if(right_diff > 0) {
x_scroll = -right_diff;
/*Do not let scrolling in*/
lv_coord_t sr = lv_obj_get_scroll_right(parent);
if(sr + x_scroll < 0) x_scroll = 0;
}
lv_coord_t parent_w = lv_obj_get_width(parent) - pleft - pright;
switch(snap_x) {
case LV_SCROLL_SNAP_START:
snap_goal = parent->coords.x1 + pleft;
act = area_tmp->x1 + x_scroll;
x_scroll += snap_goal - act;
break;
case LV_SCROLL_SNAP_END:
snap_goal = parent->coords.x2 - pright;
act = area_tmp->x2 + x_scroll;
x_scroll += snap_goal - act;
break;
case LV_SCROLL_SNAP_CENTER:
snap_goal = parent->coords.x1 + pleft + parent_w / 2;
act = lv_area_get_width(area_tmp) / 2 + area_tmp->x1 + x_scroll;
x_scroll += snap_goal - act;
break;
}
/*Remove any pending scroll animations.*/
bool y_del = lv_anim_del(parent, scroll_y_anim);
bool x_del = lv_anim_del(parent, scroll_x_anim);
if(y_del || x_del) {
lv_res_t res;
res = lv_event_send(parent, LV_EVENT_SCROLL_END, NULL);
if(res != LV_RES_OK) return;
}
if((scroll_dir & LV_DIR_LEFT) == 0 && x_scroll < 0) x_scroll = 0;
if((scroll_dir & LV_DIR_RIGHT) == 0 && x_scroll > 0) x_scroll = 0;
if((scroll_dir & LV_DIR_TOP) == 0 && y_scroll < 0) y_scroll = 0;
if((scroll_dir & LV_DIR_BOTTOM) == 0 && y_scroll > 0) y_scroll = 0;
scroll_value->x += anim_en == LV_ANIM_OFF ? 0 : x_scroll;
scroll_value->y += anim_en == LV_ANIM_OFF ? 0 : y_scroll;
lv_obj_scroll_by(parent, x_scroll, y_scroll, anim_en);
}
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_obj_scroll.c | C | apache-2.0 | 26,341 |
/**
* @file lv_obj_scroll.h
*
*/
#ifndef LV_OBJ_SCROLL_H
#define LV_OBJ_SCROLL_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "../misc/lv_area.h"
#include "../misc/lv_anim.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/*Can't include lv_obj.h because it includes this header file*/
struct _lv_obj_t;
/** Scrollbar modes: shows when should the scrollbars be visible*/
enum {
LV_SCROLLBAR_MODE_OFF, /**< Never show scrollbars*/
LV_SCROLLBAR_MODE_ON, /**< Always show scrollbars*/
LV_SCROLLBAR_MODE_ACTIVE, /**< Show scroll bars when object is being scrolled*/
LV_SCROLLBAR_MODE_AUTO, /**< Show scroll bars when the content is large enough to be scrolled*/
};
typedef uint8_t lv_scrollbar_mode_t;
/** Scroll span align options. Tells where to align the snappable children when scroll stops.*/
enum {
LV_SCROLL_SNAP_NONE, /**< Do not align, leave where it is*/
LV_SCROLL_SNAP_START, /**< Align to the left/top*/
LV_SCROLL_SNAP_END, /**< Align to the right/bottom*/
LV_SCROLL_SNAP_CENTER /**< Align to the center*/
};
typedef uint8_t lv_scroll_snap_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
/*=====================
* Setter functions
*====================*/
/**
* Set how the scrollbars should behave.
* @param obj pointer to an object
* @param mode LV_SCROLL_MODE_ON/OFF/AUTO/ACTIVE
*/
void lv_obj_set_scrollbar_mode(struct _lv_obj_t * obj, lv_scrollbar_mode_t mode);
/**
* Set the object in which directions can be scrolled
* @param obj pointer to an object
* @param dir the allow scroll directions. An element or OR-ed values of `lv_dir_t`
*/
void lv_obj_set_scroll_dir(struct _lv_obj_t * obj, lv_dir_t dir);
/**
* Set where to snap the children when scrolling ends horizontally
* @param obj pointer to an object
* @param align the snap align to set from `lv_scroll_snap_t`
*/
void lv_obj_set_scroll_snap_x(struct _lv_obj_t * obj, lv_scroll_snap_t align);
/**
* Set where to snap the children when scrolling ends vertically
* @param obj pointer to an object
* @param align the snap align to set from `lv_scroll_snap_t`
*/
void lv_obj_set_scroll_snap_y(struct _lv_obj_t * obj, lv_scroll_snap_t align);
/*=====================
* Getter functions
*====================*/
/**
* Get the current scroll mode (when to hide the scrollbars)
* @param obj pointer to an object
* @return the current scroll mode from `lv_scrollbar_mode_t`
*/
lv_scrollbar_mode_t lv_obj_get_scrollbar_mode(const struct _lv_obj_t * obj);
/**
* Get the object in which directions can be scrolled
* @param obj pointer to an object
* @param dir the allow scroll directions. An element or OR-ed values of `lv_dir_t`
*/
lv_dir_t lv_obj_get_scroll_dir(const struct _lv_obj_t * obj);
/**
* Get where to snap the children when scrolling ends horizontally
* @param obj pointer to an object
* @return the current snap align from `lv_scroll_snap_t`
*/
lv_scroll_snap_t lv_obj_get_scroll_snap_x(const struct _lv_obj_t * obj);
/**
* Get where to snap the children when scrolling ends vertically
* @param obj pointer to an object
* @return the current snap align from `lv_scroll_snap_t`
*/
lv_scroll_snap_t lv_obj_get_scroll_snap_y(const struct _lv_obj_t * obj);
/**
* Get current X scroll position.
* @param obj pointer to an object
* @return the current scroll position from the left edge.
* If the object is not scrolled return 0
* If scrolled return > 0
* If scrolled in (elastic scroll) return < 0
*/
lv_coord_t lv_obj_get_scroll_x(const struct _lv_obj_t * obj);
/**
* Get current Y scroll position.
* @param obj pointer to an object
* @return the current scroll position from the top edge.
* If the object is not scrolled return 0
* If scrolled return > 0
* If scrolled inside return < 0
*/
lv_coord_t lv_obj_get_scroll_y(const struct _lv_obj_t * obj);
/**
* Return the height of the area above the object.
* That is the number of pixels the object can be scrolled down.
* Normally positive but can be negative when scrolled inside.
* @param obj pointer to an object
* @return the scrollable area above the object in pixels
*/
lv_coord_t lv_obj_get_scroll_top(struct _lv_obj_t * obj);
/**
* Return the height of the area below the object.
* That is the number of pixels the object can be scrolled down.
* Normally positive but can be negative when scrolled inside.
* @param obj pointer to an object
* @return the scrollable area below the object in pixels
*/
lv_coord_t lv_obj_get_scroll_bottom(struct _lv_obj_t * obj);
/**
* Return the width of the area on the left the object.
* That is the number of pixels the object can be scrolled down.
* Normally positive but can be negative when scrolled inside.
* @param obj pointer to an object
* @return the scrollable area on the left the object in pixels
*/
lv_coord_t lv_obj_get_scroll_left(struct _lv_obj_t * obj);
/**
* Return the width of the area on the right the object.
* That is the number of pixels the object can be scrolled down.
* Normally positive but can be negative when scrolled inside.
* @param obj pointer to an object
* @return the scrollable area on the right the object in pixels
*/
lv_coord_t lv_obj_get_scroll_right(struct _lv_obj_t * obj);
/**
* Get the X and Y coordinates where the scrolling will end for this object if a scrolling animation is in progress.
* If no scrolling animation, give the current `x` or `y` scroll position.
* @param obj pointer to an object
* @param end pointer to store the result
*/
void lv_obj_get_scroll_end(struct _lv_obj_t * obj, lv_point_t * end);
/*=====================
* Other functions
*====================*/
/**
*
* Scroll by a given amount of pixels
* @param obj pointer to an object to scroll
* @param x pixels to scroll horizontally
* @param y pixels to scroll vertically
* @param anim_en LV_ANIM_ON: scroll with animation; LV_ANIM_OFF: scroll immediately
* @note > 0 value means scroll right/bottom (show the more content on the right/bottom)
* @note
*/
void lv_obj_scroll_by(struct _lv_obj_t * obj, lv_coord_t x, lv_coord_t y, lv_anim_enable_t anim_en);
/**
* Scroll to a given coordinate on an object.
* `x` and `y` will be limited internally to allow scrolling only on the content area.
* @param obj pointer to an object to scroll
* @param x pixels to scroll horizontally
* @param y pixels to scroll vertically
* @param anim_en LV_ANIM_ON: scroll with animation; LV_ANIM_OFF: scroll immediately
*/
void lv_obj_scroll_to(struct _lv_obj_t * obj, lv_coord_t x, lv_coord_t y, lv_anim_enable_t anim_en);
/**
* Scroll to a given X coordinate on an object.
* `x` will be limited internally to allow scrolling only on the content area.
* @param obj pointer to an object to scroll
* @param x pixels to scroll horizontally
* @param anim_en LV_ANIM_ON: scroll with animation; LV_ANIM_OFF: scroll immediately
*/
void lv_obj_scroll_to_x(struct _lv_obj_t * obj, lv_coord_t x, lv_anim_enable_t anim_en);
/**
* Scroll to a given Y coordinate on an object
* `y` will be limited internally to allow scrolling only on the content area.
* @param obj pointer to an object to scroll
* @param y pixels to scroll vertically
* @param anim_en LV_ANIM_ON: scroll with animation; LV_ANIM_OFF: scroll immediately
*/
void lv_obj_scroll_to_y(struct _lv_obj_t * obj, lv_coord_t y, lv_anim_enable_t anim_en);
/**
* Scroll to an object until it becomes visible on its parent
* @param obj pointer to an object to scroll into view
* @param anim_en LV_ANIM_ON: scroll with animation; LV_ANIM_OFF: scroll immediately
*/
void lv_obj_scroll_to_view(struct _lv_obj_t * obj, lv_anim_enable_t anim_en);
/**
* Scroll to an object until it becomes visible on its parent.
* Do the same on the parent's parent, and so on.
* Therefore the object will be scrolled into view even it has nested scrollable parents
* @param obj pointer to an object to scroll into view
* @param anim_en LV_ANIM_ON: scroll with animation; LV_ANIM_OFF: scroll immediately
*/
void lv_obj_scroll_to_view_recursive(struct _lv_obj_t * obj, lv_anim_enable_t anim_en);
/**
* Tell whether an object is being scrolled or not at this moment
* @param obj pointer to an object
* @return true: `obj` is being scrolled
*/
bool lv_obj_is_scrolling(const struct _lv_obj_t * obj);
/**
* Check the children of `obj` and scroll `obj` to fulfill the scroll_snap settings
* @param obj an object whose children needs to checked and snapped
* @param anim_en LV_ANIM_ON/OFF
*/
void lv_obj_update_snap(struct _lv_obj_t * obj, lv_anim_enable_t anim_en);
/**
* Get the area of the scrollbars
* @param obj pointer to an object
* @param hor pointer to store the area of the horizontal scrollbar
* @param ver pointer to store the area of the vertical scrollbar
*/
void lv_obj_get_scrollbar_area(struct _lv_obj_t * obj, lv_area_t * hor, lv_area_t * ver);
/**
* Invalidate the area of the scrollbars
* @param obj pointer to an object
*/
void lv_obj_scrollbar_invalidate(struct _lv_obj_t * obj);
/**
* Checked if the content is scrolled "in" and adjusts it to a normal position.
* @param obj pointer to an object
* @param anim_en LV_ANIM_ON/OFF
*/
void lv_obj_readjust_scroll(struct _lv_obj_t * obj, lv_anim_enable_t anim_en);
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_OBJ_SCROLL_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_obj_scroll.h | C | apache-2.0 | 10,011 |
/**
* @file lv_obj_style.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_obj.h"
#include "lv_disp.h"
#include "../misc/lv_gc.h"
/*********************
* DEFINES
*********************/
#define MY_CLASS &lv_obj_class
/**********************
* TYPEDEFS
**********************/
typedef struct {
lv_obj_t * obj;
lv_style_prop_t prop;
lv_style_selector_t selector;
lv_style_value_t start_value;
lv_style_value_t end_value;
} trans_t;
typedef enum {
CACHE_ZERO = 0,
CACHE_TRUE = 1,
CACHE_UNSET = 2,
CACHE_255 = 3,
CACHE_NEED_CHECK = 4,
} cache_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static lv_style_t * get_local_style(lv_obj_t * obj, lv_style_selector_t selector);
static _lv_obj_style_t * get_trans_style(lv_obj_t * obj, uint32_t part);
static bool get_prop_core(const lv_obj_t * obj, lv_part_t part, lv_style_prop_t prop, lv_style_value_t * v);
static lv_style_value_t apply_color_filter(const lv_obj_t * obj, uint32_t part, lv_style_value_t v);
static void report_style_change_core(void * style, lv_obj_t * obj);
static void refresh_children_style(lv_obj_t * obj);
static bool trans_del(lv_obj_t * obj, lv_part_t part, lv_style_prop_t prop, trans_t * tr_limit);
static void trans_anim_cb(void * _tr, int32_t v);
static void trans_anim_start_cb(lv_anim_t * a);
static void trans_anim_ready_cb(lv_anim_t * a);
static void fade_anim_cb(void * obj, int32_t v);
static void fade_in_anim_ready(lv_anim_t * a);
/**********************
* STATIC VARIABLES
**********************/
static bool style_refr = true;
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
void _lv_obj_style_init(void)
{
_lv_ll_init(&LV_GC_ROOT(_lv_obj_style_trans_ll), sizeof(trans_t));
}
void lv_obj_add_style(lv_obj_t * obj, lv_style_t * style, lv_style_selector_t selector)
{
trans_del(obj, selector, LV_STYLE_PROP_ANY, NULL);
uint32_t i;
/*Go after the transition and local styles*/
for(i = 0; i < obj->style_cnt; i++) {
if(obj->styles[i].is_trans) continue;
if(obj->styles[i].is_local) continue;
break;
}
/*Now `i` is at the first normal style. Insert the new style before this*/
/*Allocate space for the new style and shift the rest of the style to the end*/
obj->style_cnt++;
obj->styles = lv_mem_realloc(obj->styles, obj->style_cnt * sizeof(_lv_obj_style_t));
uint32_t j;
for(j = obj->style_cnt - 1; j > i ; j--) {
obj->styles[j] = obj->styles[j - 1];
}
lv_memset_00(&obj->styles[i], sizeof(_lv_obj_style_t));
obj->styles[i].style = style;
obj->styles[i].selector = selector;
lv_obj_refresh_style(obj, selector, LV_STYLE_PROP_ANY);
}
void lv_obj_remove_style(lv_obj_t * obj, lv_style_t * style, lv_style_selector_t selector)
{
lv_state_t state = lv_obj_style_get_selector_state(selector);
lv_part_t part = lv_obj_style_get_selector_part(selector);
lv_style_prop_t prop = LV_STYLE_PROP_ANY;
if(style && style->prop_cnt == 0) prop = LV_STYLE_PROP_INV;
uint32_t i = 0;
bool deleted = false;
while(i < obj->style_cnt) {
lv_state_t state_act = lv_obj_style_get_selector_state(obj->styles[i].selector);
lv_part_t part_act = lv_obj_style_get_selector_part(obj->styles[i].selector);
if((state != LV_STATE_ANY && state_act != state) ||
(part != LV_PART_ANY && part_act != part) ||
(style != NULL && style != obj->styles[i].style)) {
i++;
continue;
}
if(obj->styles[i].is_trans) {
trans_del(obj, part, LV_STYLE_PROP_ANY, NULL);
}
if(obj->styles[i].is_local || obj->styles[i].is_trans) {
lv_style_reset(obj->styles[i].style);
lv_mem_free(obj->styles[i].style);
obj->styles[i].style = NULL;
}
/*Shift the styles after `i` by one*/
uint32_t j;
for(j = i; j < (uint32_t)obj->style_cnt - 1 ; j++) {
obj->styles[j] = obj->styles[j + 1];
}
obj->style_cnt--;
obj->styles = lv_mem_realloc(obj->styles, obj->style_cnt * sizeof(_lv_obj_style_t));
deleted = true;
/*The style from the current `i` index is removed, so `i` points to the next style.
*Therefore it doesn't needs to be incremented*/
}
if(deleted && prop != LV_STYLE_PROP_INV) {
lv_obj_refresh_style(obj, part, prop);
}
}
void lv_obj_report_style_change(lv_style_t * style)
{
if(!style_refr) return;
lv_disp_t * d = lv_disp_get_next(NULL);
while(d) {
uint32_t i;
for(i = 0; i < d->screen_cnt; i++) {
report_style_change_core(style, d->screens[i]);
}
d = lv_disp_get_next(d);
}
}
void lv_obj_refresh_style(lv_obj_t * obj, lv_style_selector_t selector, lv_style_prop_t prop)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
if(!style_refr) return;
lv_obj_invalidate(obj);
lv_part_t part = lv_obj_style_get_selector_part(selector);
if(prop & LV_STYLE_PROP_LAYOUT_REFR) {
if(part == LV_PART_ANY ||
part == LV_PART_MAIN ||
lv_obj_get_style_height(obj, 0) == LV_SIZE_CONTENT ||
lv_obj_get_style_width(obj, 0) == LV_SIZE_CONTENT) {
lv_event_send(obj, LV_EVENT_STYLE_CHANGED, NULL);
lv_obj_mark_layout_as_dirty(obj);
}
}
if((part == LV_PART_ANY || part == LV_PART_MAIN) && (prop == LV_STYLE_PROP_ANY ||
(prop & LV_STYLE_PROP_PARENT_LAYOUT_REFR))) {
lv_obj_t * parent = lv_obj_get_parent(obj);
if(parent) lv_obj_mark_layout_as_dirty(parent);
}
if(prop == LV_STYLE_PROP_ANY || (prop & LV_STYLE_PROP_EXT_DRAW)) {
lv_obj_refresh_ext_draw_size(obj);
}
lv_obj_invalidate(obj);
if(prop == LV_STYLE_PROP_ANY ||
((prop & LV_STYLE_PROP_INHERIT) && ((prop & LV_STYLE_PROP_EXT_DRAW) || (prop & LV_STYLE_PROP_LAYOUT_REFR)))) {
if(part != LV_PART_SCROLLBAR) {
refresh_children_style(obj);
}
}
}
void lv_obj_enable_style_refresh(bool en)
{
style_refr = en;
}
lv_style_value_t lv_obj_get_style_prop(const lv_obj_t * obj, lv_part_t part, lv_style_prop_t prop)
{
lv_style_value_t value_act;
bool inherit = prop & LV_STYLE_PROP_INHERIT ? true : false;
bool filter = prop & LV_STYLE_PROP_FILTER ? true : false;
if(filter) {
prop &= ~LV_STYLE_PROP_FILTER;
}
bool found = false;
while(obj) {
found = get_prop_core(obj, part, prop, &value_act);
if(found) break;
if(!inherit) break;
/*If not found, check the `MAIN` style first*/
if(part != LV_PART_MAIN) {
part = LV_PART_MAIN;
continue;
}
/*Check the parent too.*/
obj = lv_obj_get_parent(obj);
}
if(!found) {
if(part == LV_PART_MAIN && (prop == LV_STYLE_WIDTH || prop == LV_STYLE_HEIGHT)) {
const lv_obj_class_t * cls = obj->class_p;
while(cls) {
if(prop == LV_STYLE_WIDTH) {
if(cls->width_def != 0) break;
}
else {
if(cls->height_def != 0) break;
}
cls = cls->base_class;
}
value_act.num = prop == LV_STYLE_WIDTH ? cls->width_def : cls->height_def;
}
else {
value_act = lv_style_prop_get_default(prop);
}
}
if(filter) value_act = apply_color_filter(obj, part, value_act);
return value_act;
}
void lv_obj_set_local_style_prop(lv_obj_t * obj, lv_style_prop_t prop, lv_style_value_t value,
lv_style_selector_t selector)
{
lv_style_t * style = get_local_style(obj, selector);
lv_style_set_prop(style, prop, value);
lv_obj_refresh_style(obj, selector, prop);
}
lv_res_t lv_obj_get_local_style_prop(lv_obj_t * obj, lv_style_prop_t prop, lv_style_value_t * value,
lv_style_selector_t selector)
{
uint32_t i;
for(i = 0; i < obj->style_cnt; i++) {
if(obj->styles[i].is_local &&
obj->styles[i].selector == selector) {
return lv_style_get_prop(obj->styles[i].style, prop, value);
}
}
return LV_RES_INV;
}
bool lv_obj_remove_local_style_prop(lv_obj_t * obj, lv_style_prop_t prop, lv_style_selector_t selector)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
uint32_t i;
/*Find the style*/
for(i = 0; i < obj->style_cnt; i++) {
if(obj->styles[i].is_local &&
obj->styles[i].selector == selector) {
break;
}
}
/*The style is not found*/
if(i == obj->style_cnt) return false;
return lv_style_remove_prop(obj->styles[i].style, prop);
}
void _lv_obj_style_create_transition(lv_obj_t * obj, lv_part_t part, lv_state_t prev_state, lv_state_t new_state,
const _lv_obj_style_transition_dsc_t * tr_dsc)
{
trans_t * tr;
/*Get the previous and current values*/
obj->skip_trans = 1;
obj->state = prev_state;
lv_style_value_t v1 = lv_obj_get_style_prop(obj, part, tr_dsc->prop);
obj->state = new_state;
lv_style_value_t v2 = lv_obj_get_style_prop(obj, part, tr_dsc->prop);
obj->skip_trans = 0;
if(v1.ptr == v2.ptr && v1.num == v2.num && v1.color.full == v2.color.full) return;
obj->state = prev_state;
v1 = lv_obj_get_style_prop(obj, part, tr_dsc->prop);
obj->state = new_state;
_lv_obj_style_t * style_trans = get_trans_style(obj, part);
lv_style_set_prop(style_trans->style, tr_dsc->prop, v1); /*Be sure `trans_style` has a valid value*/
if(tr_dsc->prop == LV_STYLE_RADIUS) {
if(v1.num == LV_RADIUS_CIRCLE || v2.num == LV_RADIUS_CIRCLE) {
lv_coord_t whalf = lv_obj_get_width(obj) / 2;
lv_coord_t hhalf = lv_obj_get_width(obj) / 2;
if(v1.num == LV_RADIUS_CIRCLE) v1.num = LV_MIN(whalf + 1, hhalf + 1);
if(v2.num == LV_RADIUS_CIRCLE) v2.num = LV_MIN(whalf + 1, hhalf + 1);
}
}
tr = _lv_ll_ins_head(&LV_GC_ROOT(_lv_obj_style_trans_ll));
LV_ASSERT_MALLOC(tr);
if(tr == NULL) return;
tr->start_value = v1;
tr->end_value = v2;
if(tr) {
tr->obj = obj;
tr->prop = tr_dsc->prop;
tr->selector = part;
lv_anim_t a;
lv_anim_init(&a);
lv_anim_set_var(&a, tr);
lv_anim_set_exec_cb(&a, trans_anim_cb);
lv_anim_set_start_cb(&a, trans_anim_start_cb);
lv_anim_set_ready_cb(&a, trans_anim_ready_cb);
lv_anim_set_values(&a, 0x00, 0xFF);
lv_anim_set_time(&a, tr_dsc->time);
lv_anim_set_delay(&a, tr_dsc->delay);
lv_anim_set_path_cb(&a, tr_dsc->path_cb);
lv_anim_set_early_apply(&a, false);
#if LV_USE_USER_DATA
a.user_data = tr_dsc->user_data;
#endif
lv_anim_start(&a);
}
}
_lv_style_state_cmp_t _lv_obj_style_state_compare(lv_obj_t * obj, lv_state_t state1, lv_state_t state2)
{
_lv_style_state_cmp_t res = _LV_STYLE_STATE_CMP_SAME;
/*Are there any new styles for the new state?*/
uint32_t i;
for(i = 0; i < obj->style_cnt; i++) {
if(obj->styles[i].is_trans) continue;
lv_state_t state_act = lv_obj_style_get_selector_state(obj->styles[i].selector);
/*The style is valid for a state but not the other*/
bool valid1 = state_act & (~state1) ? false : true;
bool valid2 = state_act & (~state2) ? false : true;
if(valid1 != valid2) {
lv_style_t * style = obj->styles[i].style;
lv_style_value_t v;
/*If there is layout difference on the main part, return immediately. There is no more serious difference*/
bool layout_diff = false;
if(lv_style_get_prop(style, LV_STYLE_PAD_TOP, &v))layout_diff = true;
else if(lv_style_get_prop(style, LV_STYLE_PAD_BOTTOM, &v)) layout_diff = true;
else if(lv_style_get_prop(style, LV_STYLE_PAD_LEFT, &v)) layout_diff = true;
else if(lv_style_get_prop(style, LV_STYLE_PAD_RIGHT, &v)) layout_diff = true;
else if(lv_style_get_prop(style, LV_STYLE_PAD_COLUMN, &v)) layout_diff = true;
else if(lv_style_get_prop(style, LV_STYLE_PAD_ROW, &v)) layout_diff = true;
else if(lv_style_get_prop(style, LV_STYLE_LAYOUT, &v)) layout_diff = true;
else if(lv_style_get_prop(style, LV_STYLE_TRANSLATE_X, &v)) layout_diff = true;
else if(lv_style_get_prop(style, LV_STYLE_TRANSLATE_Y, &v)) layout_diff = true;
else if(lv_style_get_prop(style, LV_STYLE_WIDTH, &v)) layout_diff = true;
else if(lv_style_get_prop(style, LV_STYLE_HEIGHT, &v)) layout_diff = true;
else if(lv_style_get_prop(style, LV_STYLE_MIN_WIDTH, &v)) layout_diff = true;
else if(lv_style_get_prop(style, LV_STYLE_MAX_WIDTH, &v)) layout_diff = true;
else if(lv_style_get_prop(style, LV_STYLE_MIN_HEIGHT, &v)) layout_diff = true;
else if(lv_style_get_prop(style, LV_STYLE_MAX_HEIGHT, &v)) layout_diff = true;
else if(lv_style_get_prop(style, LV_STYLE_BORDER_WIDTH, &v)) layout_diff = true;
else if(lv_style_get_prop(style, LV_STYLE_TRANSFORM_ANGLE, &v)) layout_diff = true;
else if(lv_style_get_prop(style, LV_STYLE_TRANSFORM_ZOOM, &v)) layout_diff = true;
if(layout_diff) {
return _LV_STYLE_STATE_CMP_DIFF_LAYOUT;
}
/*Check for draw pad changes*/
if(lv_style_get_prop(style, LV_STYLE_TRANSFORM_WIDTH, &v)) res = _LV_STYLE_STATE_CMP_DIFF_DRAW_PAD;
else if(lv_style_get_prop(style, LV_STYLE_TRANSFORM_HEIGHT, &v)) res = _LV_STYLE_STATE_CMP_DIFF_DRAW_PAD;
else if(lv_style_get_prop(style, LV_STYLE_TRANSFORM_ANGLE, &v)) res = _LV_STYLE_STATE_CMP_DIFF_DRAW_PAD;
else if(lv_style_get_prop(style, LV_STYLE_TRANSFORM_ZOOM, &v)) res = _LV_STYLE_STATE_CMP_DIFF_DRAW_PAD;
else if(lv_style_get_prop(style, LV_STYLE_OUTLINE_OPA, &v)) res = _LV_STYLE_STATE_CMP_DIFF_DRAW_PAD;
else if(lv_style_get_prop(style, LV_STYLE_OUTLINE_PAD, &v)) res = _LV_STYLE_STATE_CMP_DIFF_DRAW_PAD;
else if(lv_style_get_prop(style, LV_STYLE_OUTLINE_WIDTH, &v)) res = _LV_STYLE_STATE_CMP_DIFF_DRAW_PAD;
else if(lv_style_get_prop(style, LV_STYLE_SHADOW_WIDTH, &v)) res = _LV_STYLE_STATE_CMP_DIFF_DRAW_PAD;
else if(lv_style_get_prop(style, LV_STYLE_SHADOW_OPA, &v)) res = _LV_STYLE_STATE_CMP_DIFF_DRAW_PAD;
else if(lv_style_get_prop(style, LV_STYLE_SHADOW_OFS_X, &v)) res = _LV_STYLE_STATE_CMP_DIFF_DRAW_PAD;
else if(lv_style_get_prop(style, LV_STYLE_SHADOW_OFS_Y, &v)) res = _LV_STYLE_STATE_CMP_DIFF_DRAW_PAD;
else if(lv_style_get_prop(style, LV_STYLE_SHADOW_SPREAD, &v)) res = _LV_STYLE_STATE_CMP_DIFF_DRAW_PAD;
else if(lv_style_get_prop(style, LV_STYLE_LINE_WIDTH, &v)) res = _LV_STYLE_STATE_CMP_DIFF_DRAW_PAD;
else if(res == _LV_STYLE_STATE_CMP_SAME) res = _LV_STYLE_STATE_CMP_DIFF_REDRAW;
}
}
return res;
}
void lv_obj_fade_in(lv_obj_t * obj, uint32_t time, uint32_t delay)
{
lv_anim_t a;
lv_anim_init(&a);
lv_anim_set_var(&a, obj);
lv_anim_set_values(&a, LV_OPA_TRANSP, LV_OPA_COVER);
lv_anim_set_exec_cb(&a, fade_anim_cb);
lv_anim_set_ready_cb(&a, fade_in_anim_ready);
lv_anim_set_time(&a, time);
lv_anim_set_delay(&a, delay);
lv_anim_start(&a);
}
void lv_obj_fade_out(lv_obj_t * obj, uint32_t time, uint32_t delay)
{
lv_anim_t a;
lv_anim_init(&a);
lv_anim_set_var(&a, obj);
lv_anim_set_values(&a, LV_OPA_COVER, LV_OPA_TRANSP);
lv_anim_set_exec_cb(&a, fade_anim_cb);
lv_anim_set_time(&a, time);
lv_anim_set_delay(&a, delay);
lv_anim_start(&a);
}
lv_state_t lv_obj_style_get_selector_state(lv_style_selector_t selector)
{
return selector & 0xFFFF;
}
lv_part_t lv_obj_style_get_selector_part(lv_style_selector_t selector)
{
return selector & 0xFF0000;
}
lv_text_align_t lv_obj_calculate_style_text_align(const struct _lv_obj_t * obj, lv_part_t part, const char * txt)
{
lv_text_align_t align = lv_obj_get_style_text_align(obj, part);
lv_base_dir_t base_dir = lv_obj_get_style_base_dir(obj, part);
lv_bidi_calculate_align(&align, &base_dir, txt);
return align;
}
/**********************
* STATIC FUNCTIONS
**********************/
/**
* Get the local style of an object for a given part and for a given state.
* If the local style for the part-state pair doesn't exist allocate and return it.
* @param obj pointer to an object
* @param part the part in whose local style to get
* @param state the state in whose local style to get
* @return pointer to the local style
*/
static lv_style_t * get_local_style(lv_obj_t * obj, lv_style_selector_t selector)
{
uint32_t i;
for(i = 0; i < obj->style_cnt; i++) {
if(obj->styles[i].is_local &&
obj->styles[i].selector == selector) {
return obj->styles[i].style;
}
}
obj->style_cnt++;
obj->styles = lv_mem_realloc(obj->styles, obj->style_cnt * sizeof(_lv_obj_style_t));
LV_ASSERT_MALLOC(obj->styles);
for(i = obj->style_cnt - 1; i > 0 ; i--) {
/*Copy only normal styles (not local and transition).
*The new local style will be added as the last local style*/
if(obj->styles[i - 1].is_local || obj->styles[i - 1].is_trans) break;
obj->styles[i] = obj->styles[i - 1];
}
lv_memset_00(&obj->styles[i], sizeof(_lv_obj_style_t));
obj->styles[i].style = lv_mem_alloc(sizeof(lv_style_t));
lv_style_init(obj->styles[i].style);
obj->styles[i].is_local = 1;
obj->styles[i].selector = selector;
return obj->styles[i].style;
}
/**
* Get the transition style of an object for a given part and for a given state.
* If the transition style for the part-state pair doesn't exist allocate and return it.
* @param obj pointer to an object
* @param part the part in whose local style to get
* @param state the state in whose local style to get
* @return pointer to the transition style
*/
static _lv_obj_style_t * get_trans_style(lv_obj_t * obj, lv_style_selector_t selector)
{
uint32_t i;
for(i = 0; i < obj->style_cnt; i++) {
if(obj->styles[i].is_trans && obj->styles[i].selector == selector) break;
}
/*Already have a transition style for it*/
if(i != obj->style_cnt) return &obj->styles[i];
obj->style_cnt++;
obj->styles = lv_mem_realloc(obj->styles, obj->style_cnt * sizeof(_lv_obj_style_t));
for(i = obj->style_cnt - 1; i > 0 ; i--) {
obj->styles[i] = obj->styles[i - 1];
}
lv_memset_00(&obj->styles[0], sizeof(_lv_obj_style_t));
obj->styles[0].style = lv_mem_alloc(sizeof(lv_style_t));
lv_style_init(obj->styles[0].style);
obj->styles[0].is_trans = 1;
obj->styles[0].selector = selector;
return &obj->styles[0];
}
static bool get_prop_core(const lv_obj_t * obj, lv_part_t part, lv_style_prop_t prop, lv_style_value_t * v)
{
uint8_t group = 1 << _lv_style_get_prop_group(prop);
int32_t weight = -1;
lv_state_t state = obj->state;
lv_state_t state_inv = ~state;
lv_style_value_t value_tmp;
bool skip_trans = obj->skip_trans;
uint32_t i;
bool found;
for(i = 0; i < obj->style_cnt; i++) {
_lv_obj_style_t * obj_style = &obj->styles[i];
if(obj_style->is_trans == false) break;
if(skip_trans) continue;
lv_part_t part_act = lv_obj_style_get_selector_part(obj->styles[i].selector);
if(part_act != part) continue;
if((obj_style->style->has_group & group) == 0) continue;
found = lv_style_get_prop(obj_style->style, prop, &value_tmp);
if(found) {
*v = value_tmp;
return true;
}
}
for(; i < obj->style_cnt; i++) {
_lv_obj_style_t * obj_style = &obj->styles[i];
lv_part_t part_act = lv_obj_style_get_selector_part(obj->styles[i].selector);
lv_state_t state_act = lv_obj_style_get_selector_state(obj->styles[i].selector);
if(part_act != part) continue;
if((obj_style->style->has_group & group) == 0) continue;
/*Be sure the style not specifies other state than the requested.
*E.g. For HOVER+PRESS object state, HOVER style only is OK, but HOVER+FOCUS style is not*/
if((state_act & state_inv)) continue;
/*Check only better candidates*/
if(state_act <= weight) continue;
found = lv_style_get_prop(obj_style->style, prop, &value_tmp);
if(found) {
if(state_act == state) {
*v = value_tmp;
return true;
}
if(weight < state_act) {
weight = state_act;
*v = value_tmp;
}
}
}
if(weight >= 0) {
*v = value_tmp;
return true;
}
else return false;
}
static lv_style_value_t apply_color_filter(const lv_obj_t * obj, uint32_t part, lv_style_value_t v)
{
if(obj == NULL) return v;
const lv_color_filter_dsc_t * f = lv_obj_get_style_color_filter_dsc(obj, part);
if(f && f->filter_cb) {
lv_opa_t f_opa = lv_obj_get_style_color_filter_opa(obj, part);
if(f_opa != 0) v.color = f->filter_cb(f, v.color, f_opa);
}
return v;
}
/**
* Refresh the style of all children of an object. (Called recursively)
* @param style refresh objects only with this
* @param obj pointer to an object
*/
static void report_style_change_core(void * style, lv_obj_t * obj)
{
uint32_t i;
for(i = 0; i < obj->style_cnt; i++) {
if(style == NULL || obj->styles[i].style == style) {
lv_obj_refresh_style(obj, LV_PART_ANY, LV_STYLE_PROP_ANY);
break;
}
}
uint32_t child_cnt = lv_obj_get_child_cnt(obj);
for(i = 0; i < child_cnt; i++) {
report_style_change_core(style, obj->spec_attr->children[i]);
}
}
/**
* Recursively refresh the style of the children. Go deeper until a not NULL style is found
* because the NULL styles are inherited from the parent
* @param obj pointer to an object
*/
static void refresh_children_style(lv_obj_t * obj)
{
uint32_t i;
uint32_t child_cnt = lv_obj_get_child_cnt(obj);
for(i = 0; i < child_cnt; i++) {
lv_obj_t * child = obj->spec_attr->children[i];
lv_obj_invalidate(child);
lv_event_send(child, LV_EVENT_STYLE_CHANGED, NULL);
lv_obj_invalidate(child);
refresh_children_style(child); /*Check children too*/
}
}
/**
* Remove the transition from object's part's property.
* - Remove the transition from `_lv_obj_style_trans_ll` and free it
* - Delete pending transitions
* @param obj pointer to an object which transition(s) should be removed
* @param part a part of object or 0xFF to remove from all parts
* @param prop a property or 0xFF to remove all properties
* @param tr_limit delete transitions only "older" than this. `NULL` if not used
*/
static bool trans_del(lv_obj_t * obj, lv_part_t part, lv_style_prop_t prop, trans_t * tr_limit)
{
trans_t * tr;
trans_t * tr_prev;
bool removed = false;
tr = _lv_ll_get_tail(&LV_GC_ROOT(_lv_obj_style_trans_ll));
while(tr != NULL) {
if(tr == tr_limit) break;
/*'tr' might be deleted, so get the next object while 'tr' is valid*/
tr_prev = _lv_ll_get_prev(&LV_GC_ROOT(_lv_obj_style_trans_ll), tr);
if(tr->obj == obj && (part == tr->selector || part == LV_PART_ANY) && (prop == tr->prop || prop == LV_STYLE_PROP_ANY)) {
/*Remove the transitioned property from trans. style
*to allow changing it by normal styles*/
uint32_t i;
for(i = 0; i < obj->style_cnt; i++) {
if(obj->styles[i].is_trans && (part == LV_PART_ANY || obj->styles[i].selector == part)) {
lv_style_remove_prop(obj->styles[i].style, tr->prop);
lv_anim_del(tr, NULL);
_lv_ll_remove(&LV_GC_ROOT(_lv_obj_style_trans_ll), tr);
lv_mem_free(tr);
removed = true;
}
}
}
tr = tr_prev;
}
return removed;
}
static void trans_anim_cb(void * _tr, int32_t v)
{
trans_t * tr = _tr;
lv_obj_t * obj = tr->obj;
uint32_t i;
for(i = 0; i < obj->style_cnt; i++) {
if(obj->styles[i].is_trans == 0 || obj->styles[i].selector != tr->selector) continue;
lv_style_value_t value_final;
switch(tr->prop) {
case LV_STYLE_BORDER_SIDE:
case LV_STYLE_BORDER_POST:
case LV_STYLE_BLEND_MODE:
if(v < 255) value_final.num = tr->start_value.num;
else value_final.num = tr->end_value.num;
break;
case LV_STYLE_TRANSITION:
case LV_STYLE_TEXT_FONT:
if(v < 255) value_final.ptr = tr->start_value.ptr;
else value_final.ptr = tr->end_value.ptr;
break;
case LV_STYLE_COLOR_FILTER_DSC:
if(tr->start_value.ptr == NULL) value_final.ptr = tr->end_value.ptr;
else if(tr->end_value.ptr == NULL) value_final.ptr = tr->start_value.ptr;
else if(v < 128) value_final.ptr = tr->start_value.ptr;
else value_final.ptr = tr->end_value.ptr;
break;
case LV_STYLE_BG_COLOR:
case LV_STYLE_BORDER_COLOR:
case LV_STYLE_TEXT_COLOR:
case LV_STYLE_SHADOW_COLOR:
case LV_STYLE_OUTLINE_COLOR:
case LV_STYLE_IMG_RECOLOR:
if(v <= 0) value_final.color = tr->start_value.color;
else if(v >= 255) value_final.color = tr->end_value.color;
else value_final.color = lv_color_mix(tr->end_value.color, tr->start_value.color, v);
break;
default:
if(v == 0) value_final.num = tr->start_value.num;
else if(v == 255) value_final.num = tr->end_value.num;
else value_final.num = tr->start_value.num + ((int32_t)((int32_t)(tr->end_value.num - tr->start_value.num) * v) >> 8);
break;
}
lv_style_value_t old_value;
bool refr = true;
if(lv_style_get_prop(obj->styles[i].style, tr->prop, &old_value)) {
if(value_final.ptr == old_value.ptr && value_final.color.full == old_value.color.full &&
value_final.num == old_value.num) {
refr = false;
}
}
lv_style_set_prop(obj->styles[i].style, tr->prop, value_final);
if(refr) lv_obj_refresh_style(tr->obj, tr->selector, tr->prop);
break;
}
}
static void trans_anim_start_cb(lv_anim_t * a)
{
trans_t * tr = a->var;
lv_part_t part = lv_obj_style_get_selector_part(tr->selector);
tr->start_value = lv_obj_get_style_prop(tr->obj, part, tr->prop);
/*Init prop to an invalid values to be sure `trans_del` won't delete this added `tr`*/
lv_style_prop_t prop_tmp = tr->prop;
tr->prop = LV_STYLE_PROP_INV;
/*Delete the related transitions if any*/
trans_del(tr->obj, part, prop_tmp, tr);
tr->prop = prop_tmp;
_lv_obj_style_t * style_trans = get_trans_style(tr->obj, tr->selector);
lv_style_set_prop(style_trans->style, tr->prop, tr->start_value); /*Be sure `trans_style` has a valid value*/
}
static void trans_anim_ready_cb(lv_anim_t * a)
{
trans_t * tr = a->var;
lv_obj_t * obj = tr->obj;
lv_style_prop_t prop = tr->prop;
/*Remove the transitioned property from trans. style
*if there no more transitions for this property
*It allows changing it by normal styles*/
bool running = false;
trans_t * tr_i;
_LV_LL_READ(&LV_GC_ROOT(_lv_obj_style_trans_ll), tr_i) {
if(tr_i != tr && tr_i->obj == tr->obj && tr_i->selector == tr->selector && tr_i->prop == tr->prop) {
running = true;
break;
}
}
if(!running) {
uint32_t i;
for(i = 0; i < obj->style_cnt; i++) {
if(obj->styles[i].is_trans && obj->styles[i].selector == tr->selector) {
_lv_ll_remove(&LV_GC_ROOT(_lv_obj_style_trans_ll), tr);
lv_mem_free(tr);
_lv_obj_style_t * obj_style = &obj->styles[i];
lv_style_remove_prop(obj_style->style, prop);
if(lv_style_is_empty(obj->styles[i].style)) {
lv_obj_remove_style(obj, obj_style->style, obj_style->selector);
}
break;
}
}
}
}
static void fade_anim_cb(void * obj, int32_t v)
{
lv_obj_set_style_opa(obj, v, 0);
}
static void fade_in_anim_ready(lv_anim_t * a)
{
lv_obj_remove_local_style_prop(a->var, LV_STYLE_OPA, 0);
}
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_obj_style.c | C | apache-2.0 | 29,227 |
/**
* @file lv_obj_style.h
*
*/
#ifndef LV_OBJ_STYLE_H
#define LV_OBJ_STYLE_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include <stdint.h>
#include <stdbool.h>
#include "../misc/lv_bidi.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/*Can't include lv_obj.h because it includes this header file*/
struct _lv_obj_t;
typedef enum {
_LV_STYLE_STATE_CMP_SAME, /*The style properties in the 2 states are identical*/
_LV_STYLE_STATE_CMP_DIFF_REDRAW, /*The differences can be shown with a simple redraw*/
_LV_STYLE_STATE_CMP_DIFF_DRAW_PAD, /*The differences can be shown with a simple redraw*/
_LV_STYLE_STATE_CMP_DIFF_LAYOUT, /*The differences can be shown with a simple redraw*/
} _lv_style_state_cmp_t;
typedef uint32_t lv_style_selector_t;
typedef struct {
lv_style_t * style;
uint32_t selector : 24;
uint32_t is_local : 1;
uint32_t is_trans : 1;
} _lv_obj_style_t;
typedef struct {
uint16_t time;
uint16_t delay;
lv_style_selector_t selector;
lv_style_prop_t prop;
lv_anim_path_cb_t path_cb;
#if LV_USE_USER_DATA
void * user_data;
#endif
} _lv_obj_style_transition_dsc_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Initialize the object related style manager module.
* Called by LVGL in `lv_init()`
*/
void _lv_obj_style_init(void);
/**
* Add a style to an object.
* @param obj pointer to an object
* @param style pointer to a style to add
* @param selector OR-ed value of parts and state to which the style should be added
* @example lv_obj_add_style(btn, &style_btn, 0); //Default button style
* @example lv_obj_add_style(btn, &btn_red, LV_STATE_PRESSED); //Overwrite only some colors to red when pressed
*/
void lv_obj_add_style(struct _lv_obj_t * obj, lv_style_t * style, lv_style_selector_t selector);
/**
* Add a style to an object.
* @param obj pointer to an object
* @param style pointer to a style to remove. Can be NULL to check only the selector
* @param selector OR-ed values of states and a part to remove only styles with matching selectors. LV_STATE_ANY and LV_PART_ANY can be used
* @example lv_obj_remove_style(obj, &style, LV_PART_ANY | LV_STATE_ANY); //Remove a specific style
* @example lv_obj_remove_style(obj, NULL, LV_PART_MAIN | LV_STATE_ANY); //Remove all styles from the main part
* @example lv_obj_remove_style(obj, NULL, LV_PART_ANY | LV_STATE_ANY); //Remove all styles
*/
void lv_obj_remove_style(struct _lv_obj_t * obj, lv_style_t * style, lv_style_selector_t selector);
/**
* Remove all styles from an object
* @param obj pointer to an object
*/
static inline void lv_obj_remove_style_all(struct _lv_obj_t * obj)
{
lv_obj_remove_style(obj, NULL, LV_PART_ANY | LV_STATE_ANY);
}
/**
* Notify all object if a style is modified
* @param style pointer to a style. Only the objects with this style will be notified
* (NULL to notify all objects)
*/
void lv_obj_report_style_change(lv_style_t * style);
/**
* Notify an object and its children about its style is modified.
* @param obj pointer to an object
* @param part the part whose style was changed. E.g. `LV_PART_ANY`, `LV_PART_MAIN`
* @param prop `LV_STYLE_PROP_ANY` or an `LV_STYLE_...` property.
* It is used to optimize what needs to be refreshed.
* `LV_STYLE_PROP_INV` to perform only a style cache update
*/
void lv_obj_refresh_style(struct _lv_obj_t * obj, lv_part_t part, lv_style_prop_t prop);
/**
* Enable or disable automatic style refreshing when a new style is added/removed to/from an object
* or any other style change happens.
* @param en true: enable refreshing; false: disable refreshing
*/
void lv_obj_enable_style_refresh(bool en);
/**
* Get the value of a style property. The current state of the object will be considered.
* Inherited properties will be inherited.
* If a property is not set a default value will be returned.
* @param obj pointer to an object
* @param part a part from which the property should be get
* @param prop the property to get
* @return the value of the property.
* Should be read from the correct field of the `lv_style_value_t` according to the type of the property.
*/
lv_style_value_t lv_obj_get_style_prop(const struct _lv_obj_t * obj, lv_part_t part, lv_style_prop_t prop);
/**
* Set local style property on an object's part and state.
* @param obj pointer to an object
* @param part a part to which the property should be added
* @param state a state to which the property should be added
* @param prop the property
* @param value value of the property. The correct element should be set according to the type of the property
*/
void lv_obj_set_local_style_prop(struct _lv_obj_t * obj, lv_style_prop_t prop, lv_style_value_t value,
lv_style_selector_t selector);
lv_res_t lv_obj_get_local_style_prop(struct _lv_obj_t * obj, lv_style_prop_t prop, lv_style_value_t * value,
lv_style_selector_t selector);
/**
* Remove a local style property from a part of an object with a given state.
* @param obj pointer to an object
* @param part the part of the object which style property should be removed.
* @param state the state from which the property should be removed.
* @param prop a style property to remove.
* @return true the property was found and removed; false: the property was not found
*/
bool lv_obj_remove_local_style_prop(struct _lv_obj_t * obj, lv_style_prop_t prop, lv_style_selector_t selector);
/**
* Used internally to create a style transition
* @param obj
* @param part
* @param prev_state
* @param new_state
* @param tr
*/
void _lv_obj_style_create_transition(struct _lv_obj_t * obj, lv_part_t part, lv_state_t prev_state,
lv_state_t new_state, const _lv_obj_style_transition_dsc_t * tr);
/**
* Used internally to compare the appearance of an object in 2 states
* @param obj
* @param state1
* @param state2
* @return
*/
_lv_style_state_cmp_t _lv_obj_style_state_compare(struct _lv_obj_t * obj, lv_state_t state1, lv_state_t state2);
/**
* Fade in an an object and all its children.
* @param obj the object to fade in
* @param time time of fade
* @param delay delay to start the animation
*/
void lv_obj_fade_in(struct _lv_obj_t * obj, uint32_t time, uint32_t delay);
/**
* Fade out an an object and all its children.
* @param obj the object to fade out
* @param time time of fade
* @param delay delay to start the animation
*/
void lv_obj_fade_out(struct _lv_obj_t * obj, uint32_t time, uint32_t delay);
lv_state_t lv_obj_style_get_selector_state(lv_style_selector_t selector);
lv_part_t lv_obj_style_get_selector_part(lv_style_selector_t selector);
#include "lv_obj_style_gen.h"
static inline void lv_obj_set_style_pad_all(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_obj_set_style_pad_left(obj, value, selector);
lv_obj_set_style_pad_right(obj, value, selector);
lv_obj_set_style_pad_top(obj, value, selector);
lv_obj_set_style_pad_bottom(obj, value, selector);
}
static inline void lv_obj_set_style_pad_hor(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_obj_set_style_pad_left(obj, value, selector);
lv_obj_set_style_pad_right(obj, value, selector);
}
static inline void lv_obj_set_style_pad_ver(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_obj_set_style_pad_top(obj, value, selector);
lv_obj_set_style_pad_bottom(obj, value, selector);
}
static inline void lv_obj_set_style_pad_gap(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_obj_set_style_pad_row(obj, value, selector);
lv_obj_set_style_pad_column(obj, value, selector);
}
static inline void lv_obj_set_style_size(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_obj_set_style_width(obj, value, selector);
lv_obj_set_style_height(obj, value, selector);
}
lv_text_align_t lv_obj_calculate_style_text_align(const struct _lv_obj_t * obj, lv_part_t part, const char * txt);
static inline lv_coord_t lv_obj_get_x_aligned(const struct _lv_obj_t * obj)
{
return lv_obj_get_style_x(obj, LV_PART_MAIN);
}
static inline lv_coord_t lv_obj_get_y_aligned(const struct _lv_obj_t * obj)
{
return lv_obj_get_style_y(obj, LV_PART_MAIN);
}
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_TEMPL_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_obj_style.h | C | apache-2.0 | 8,896 |
#include "lv_obj.h"
void lv_obj_set_style_width(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_WIDTH, v, selector);
}
void lv_obj_set_style_min_width(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_MIN_WIDTH, v, selector);
}
void lv_obj_set_style_max_width(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_MAX_WIDTH, v, selector);
}
void lv_obj_set_style_height(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_HEIGHT, v, selector);
}
void lv_obj_set_style_min_height(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_MIN_HEIGHT, v, selector);
}
void lv_obj_set_style_max_height(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_MAX_HEIGHT, v, selector);
}
void lv_obj_set_style_x(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_X, v, selector);
}
void lv_obj_set_style_y(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_Y, v, selector);
}
void lv_obj_set_style_align(struct _lv_obj_t * obj, lv_align_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_ALIGN, v, selector);
}
void lv_obj_set_style_transform_width(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_TRANSFORM_WIDTH, v, selector);
}
void lv_obj_set_style_transform_height(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_TRANSFORM_HEIGHT, v, selector);
}
void lv_obj_set_style_translate_x(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_TRANSLATE_X, v, selector);
}
void lv_obj_set_style_translate_y(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_TRANSLATE_Y, v, selector);
}
void lv_obj_set_style_transform_zoom(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_TRANSFORM_ZOOM, v, selector);
}
void lv_obj_set_style_transform_angle(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_TRANSFORM_ANGLE, v, selector);
}
void lv_obj_set_style_pad_top(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_PAD_TOP, v, selector);
}
void lv_obj_set_style_pad_bottom(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_PAD_BOTTOM, v, selector);
}
void lv_obj_set_style_pad_left(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_PAD_LEFT, v, selector);
}
void lv_obj_set_style_pad_right(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_PAD_RIGHT, v, selector);
}
void lv_obj_set_style_pad_row(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_PAD_ROW, v, selector);
}
void lv_obj_set_style_pad_column(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_PAD_COLUMN, v, selector);
}
void lv_obj_set_style_radius(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_RADIUS, v, selector);
}
void lv_obj_set_style_clip_corner(struct _lv_obj_t * obj, bool value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_CLIP_CORNER, v, selector);
}
void lv_obj_set_style_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_OPA, v, selector);
}
void lv_obj_set_style_color_filter_dsc(struct _lv_obj_t * obj, const lv_color_filter_dsc_t * value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.ptr = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_COLOR_FILTER_DSC, v, selector);
}
void lv_obj_set_style_color_filter_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_COLOR_FILTER_OPA, v, selector);
}
void lv_obj_set_style_anim_time(struct _lv_obj_t * obj, uint32_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_ANIM_TIME, v, selector);
}
void lv_obj_set_style_anim_speed(struct _lv_obj_t * obj, uint32_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_ANIM_SPEED, v, selector);
}
void lv_obj_set_style_transition(struct _lv_obj_t * obj, const lv_style_transition_dsc_t * value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.ptr = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_TRANSITION, v, selector);
}
void lv_obj_set_style_blend_mode(struct _lv_obj_t * obj, lv_blend_mode_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_BLEND_MODE, v, selector);
}
void lv_obj_set_style_layout(struct _lv_obj_t * obj, uint16_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_LAYOUT, v, selector);
}
void lv_obj_set_style_base_dir(struct _lv_obj_t * obj, lv_base_dir_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_BASE_DIR, v, selector);
}
void lv_obj_set_style_bg_color(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.color = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_BG_COLOR, v, selector);
}
void lv_obj_set_style_bg_color_filtered(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.color = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_BG_COLOR_FILTERED, v, selector);
}
void lv_obj_set_style_bg_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_BG_OPA, v, selector);
}
void lv_obj_set_style_bg_grad_color(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.color = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_BG_GRAD_COLOR, v, selector);
}
void lv_obj_set_style_bg_grad_color_filtered(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.color = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_BG_GRAD_COLOR_FILTERED, v, selector);
}
void lv_obj_set_style_bg_grad_dir(struct _lv_obj_t * obj, lv_grad_dir_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_BG_GRAD_DIR, v, selector);
}
void lv_obj_set_style_bg_main_stop(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_BG_MAIN_STOP, v, selector);
}
void lv_obj_set_style_bg_grad_stop(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_BG_GRAD_STOP, v, selector);
}
void lv_obj_set_style_bg_img_src(struct _lv_obj_t * obj, const void * value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.ptr = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_BG_IMG_SRC, v, selector);
}
void lv_obj_set_style_bg_img_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_BG_IMG_OPA, v, selector);
}
void lv_obj_set_style_bg_img_recolor(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.color = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_BG_IMG_RECOLOR, v, selector);
}
void lv_obj_set_style_bg_img_recolor_filtered(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.color = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_BG_IMG_RECOLOR_FILTERED, v, selector);
}
void lv_obj_set_style_bg_img_recolor_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_BG_IMG_RECOLOR_OPA, v, selector);
}
void lv_obj_set_style_bg_img_tiled(struct _lv_obj_t * obj, bool value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_BG_IMG_TILED, v, selector);
}
void lv_obj_set_style_border_color(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.color = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_BORDER_COLOR, v, selector);
}
void lv_obj_set_style_border_color_filtered(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.color = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_BORDER_COLOR_FILTERED, v, selector);
}
void lv_obj_set_style_border_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_BORDER_OPA, v, selector);
}
void lv_obj_set_style_border_width(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_BORDER_WIDTH, v, selector);
}
void lv_obj_set_style_border_side(struct _lv_obj_t * obj, lv_border_side_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_BORDER_SIDE, v, selector);
}
void lv_obj_set_style_border_post(struct _lv_obj_t * obj, bool value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_BORDER_POST, v, selector);
}
void lv_obj_set_style_text_color(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.color = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_TEXT_COLOR, v, selector);
}
void lv_obj_set_style_text_color_filtered(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.color = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_TEXT_COLOR_FILTERED, v, selector);
}
void lv_obj_set_style_text_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_TEXT_OPA, v, selector);
}
void lv_obj_set_style_text_font(struct _lv_obj_t * obj, const lv_font_t * value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.ptr = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_TEXT_FONT, v, selector);
}
void lv_obj_set_style_text_letter_space(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_TEXT_LETTER_SPACE, v, selector);
}
void lv_obj_set_style_text_line_space(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_TEXT_LINE_SPACE, v, selector);
}
void lv_obj_set_style_text_decor(struct _lv_obj_t * obj, lv_text_decor_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_TEXT_DECOR, v, selector);
}
void lv_obj_set_style_text_align(struct _lv_obj_t * obj, lv_text_align_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_TEXT_ALIGN, v, selector);
}
void lv_obj_set_style_img_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_IMG_OPA, v, selector);
}
void lv_obj_set_style_img_recolor(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.color = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_IMG_RECOLOR, v, selector);
}
void lv_obj_set_style_img_recolor_filtered(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.color = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_IMG_RECOLOR_FILTERED, v, selector);
}
void lv_obj_set_style_img_recolor_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_IMG_RECOLOR_OPA, v, selector);
}
void lv_obj_set_style_outline_width(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_OUTLINE_WIDTH, v, selector);
}
void lv_obj_set_style_outline_color(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.color = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_OUTLINE_COLOR, v, selector);
}
void lv_obj_set_style_outline_color_filtered(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.color = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_OUTLINE_COLOR_FILTERED, v, selector);
}
void lv_obj_set_style_outline_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_OUTLINE_OPA, v, selector);
}
void lv_obj_set_style_outline_pad(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_OUTLINE_PAD, v, selector);
}
void lv_obj_set_style_shadow_width(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_SHADOW_WIDTH, v, selector);
}
void lv_obj_set_style_shadow_ofs_x(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_SHADOW_OFS_X, v, selector);
}
void lv_obj_set_style_shadow_ofs_y(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_SHADOW_OFS_Y, v, selector);
}
void lv_obj_set_style_shadow_spread(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_SHADOW_SPREAD, v, selector);
}
void lv_obj_set_style_shadow_color(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.color = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_SHADOW_COLOR, v, selector);
}
void lv_obj_set_style_shadow_color_filtered(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.color = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_SHADOW_COLOR_FILTERED, v, selector);
}
void lv_obj_set_style_shadow_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_SHADOW_OPA, v, selector);
}
void lv_obj_set_style_line_width(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_LINE_WIDTH, v, selector);
}
void lv_obj_set_style_line_dash_width(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_LINE_DASH_WIDTH, v, selector);
}
void lv_obj_set_style_line_dash_gap(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_LINE_DASH_GAP, v, selector);
}
void lv_obj_set_style_line_rounded(struct _lv_obj_t * obj, bool value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_LINE_ROUNDED, v, selector);
}
void lv_obj_set_style_line_color(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.color = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_LINE_COLOR, v, selector);
}
void lv_obj_set_style_line_color_filtered(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.color = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_LINE_COLOR_FILTERED, v, selector);
}
void lv_obj_set_style_line_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_LINE_OPA, v, selector);
}
void lv_obj_set_style_arc_width(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_ARC_WIDTH, v, selector);
}
void lv_obj_set_style_arc_rounded(struct _lv_obj_t * obj, bool value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_ARC_ROUNDED, v, selector);
}
void lv_obj_set_style_arc_color(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.color = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_ARC_COLOR, v, selector);
}
void lv_obj_set_style_arc_color_filtered(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.color = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_ARC_COLOR_FILTERED, v, selector);
}
void lv_obj_set_style_arc_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.num = (int32_t)value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_ARC_OPA, v, selector);
}
void lv_obj_set_style_arc_img_src(struct _lv_obj_t * obj, const void * value, lv_style_selector_t selector)
{
lv_style_value_t v = {
.ptr = value
};
lv_obj_set_local_style_prop(obj, LV_STYLE_ARC_IMG_SRC, v, selector);
}
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_obj_style_gen.c | C | apache-2.0 | 22,015 |
static inline lv_coord_t lv_obj_get_style_width(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_WIDTH);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_min_width(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_MIN_WIDTH);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_max_width(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_MAX_WIDTH);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_height(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_HEIGHT);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_min_height(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_MIN_HEIGHT);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_max_height(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_MAX_HEIGHT);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_x(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_X);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_y(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_Y);
return (lv_coord_t)v.num;
}
static inline lv_align_t lv_obj_get_style_align(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_ALIGN);
return (lv_align_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_transform_width(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_TRANSFORM_WIDTH);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_transform_height(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_TRANSFORM_HEIGHT);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_translate_x(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_TRANSLATE_X);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_translate_y(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_TRANSLATE_Y);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_transform_zoom(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_TRANSFORM_ZOOM);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_transform_angle(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_TRANSFORM_ANGLE);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_pad_top(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_PAD_TOP);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_pad_bottom(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_PAD_BOTTOM);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_pad_left(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_PAD_LEFT);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_pad_right(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_PAD_RIGHT);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_pad_row(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_PAD_ROW);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_pad_column(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_PAD_COLUMN);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_radius(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_RADIUS);
return (lv_coord_t)v.num;
}
static inline bool lv_obj_get_style_clip_corner(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_CLIP_CORNER);
return (bool)v.num;
}
static inline lv_opa_t lv_obj_get_style_opa(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_OPA);
return (lv_opa_t)v.num;
}
static inline const lv_color_filter_dsc_t * lv_obj_get_style_color_filter_dsc(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_COLOR_FILTER_DSC);
return (const lv_color_filter_dsc_t *)v.ptr;
}
static inline lv_opa_t lv_obj_get_style_color_filter_opa(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_COLOR_FILTER_OPA);
return (lv_opa_t)v.num;
}
static inline uint32_t lv_obj_get_style_anim_time(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_ANIM_TIME);
return (uint32_t)v.num;
}
static inline uint32_t lv_obj_get_style_anim_speed(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_ANIM_SPEED);
return (uint32_t)v.num;
}
static inline const lv_style_transition_dsc_t * lv_obj_get_style_transition(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_TRANSITION);
return (const lv_style_transition_dsc_t *)v.ptr;
}
static inline lv_blend_mode_t lv_obj_get_style_blend_mode(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_BLEND_MODE);
return (lv_blend_mode_t)v.num;
}
static inline uint16_t lv_obj_get_style_layout(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_LAYOUT);
return (uint16_t)v.num;
}
static inline lv_base_dir_t lv_obj_get_style_base_dir(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_BASE_DIR);
return (lv_base_dir_t)v.num;
}
static inline lv_color_t lv_obj_get_style_bg_color(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_BG_COLOR);
return v.color;
}
static inline lv_color_t lv_obj_get_style_bg_color_filtered(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_BG_COLOR_FILTERED);
return v.color;
}
static inline lv_opa_t lv_obj_get_style_bg_opa(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_BG_OPA);
return (lv_opa_t)v.num;
}
static inline lv_color_t lv_obj_get_style_bg_grad_color(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_BG_GRAD_COLOR);
return v.color;
}
static inline lv_color_t lv_obj_get_style_bg_grad_color_filtered(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_BG_GRAD_COLOR_FILTERED);
return v.color;
}
static inline lv_grad_dir_t lv_obj_get_style_bg_grad_dir(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_BG_GRAD_DIR);
return (lv_grad_dir_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_bg_main_stop(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_BG_MAIN_STOP);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_bg_grad_stop(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_BG_GRAD_STOP);
return (lv_coord_t)v.num;
}
static inline const void * lv_obj_get_style_bg_img_src(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_BG_IMG_SRC);
return (const void *)v.ptr;
}
static inline lv_opa_t lv_obj_get_style_bg_img_opa(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_BG_IMG_OPA);
return (lv_opa_t)v.num;
}
static inline lv_color_t lv_obj_get_style_bg_img_recolor(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_BG_IMG_RECOLOR);
return v.color;
}
static inline lv_color_t lv_obj_get_style_bg_img_recolor_filtered(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_BG_IMG_RECOLOR_FILTERED);
return v.color;
}
static inline lv_opa_t lv_obj_get_style_bg_img_recolor_opa(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_BG_IMG_RECOLOR_OPA);
return (lv_opa_t)v.num;
}
static inline bool lv_obj_get_style_bg_img_tiled(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_BG_IMG_TILED);
return (bool)v.num;
}
static inline lv_color_t lv_obj_get_style_border_color(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_BORDER_COLOR);
return v.color;
}
static inline lv_color_t lv_obj_get_style_border_color_filtered(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_BORDER_COLOR_FILTERED);
return v.color;
}
static inline lv_opa_t lv_obj_get_style_border_opa(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_BORDER_OPA);
return (lv_opa_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_border_width(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_BORDER_WIDTH);
return (lv_coord_t)v.num;
}
static inline lv_border_side_t lv_obj_get_style_border_side(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_BORDER_SIDE);
return (lv_border_side_t)v.num;
}
static inline bool lv_obj_get_style_border_post(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_BORDER_POST);
return (bool)v.num;
}
static inline lv_color_t lv_obj_get_style_text_color(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_TEXT_COLOR);
return v.color;
}
static inline lv_color_t lv_obj_get_style_text_color_filtered(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_TEXT_COLOR_FILTERED);
return v.color;
}
static inline lv_opa_t lv_obj_get_style_text_opa(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_TEXT_OPA);
return (lv_opa_t)v.num;
}
static inline const lv_font_t * lv_obj_get_style_text_font(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_TEXT_FONT);
return (const lv_font_t *)v.ptr;
}
static inline lv_coord_t lv_obj_get_style_text_letter_space(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_TEXT_LETTER_SPACE);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_text_line_space(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_TEXT_LINE_SPACE);
return (lv_coord_t)v.num;
}
static inline lv_text_decor_t lv_obj_get_style_text_decor(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_TEXT_DECOR);
return (lv_text_decor_t)v.num;
}
static inline lv_text_align_t lv_obj_get_style_text_align(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_TEXT_ALIGN);
return (lv_text_align_t)v.num;
}
static inline lv_opa_t lv_obj_get_style_img_opa(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_IMG_OPA);
return (lv_opa_t)v.num;
}
static inline lv_color_t lv_obj_get_style_img_recolor(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_IMG_RECOLOR);
return v.color;
}
static inline lv_color_t lv_obj_get_style_img_recolor_filtered(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_IMG_RECOLOR_FILTERED);
return v.color;
}
static inline lv_opa_t lv_obj_get_style_img_recolor_opa(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_IMG_RECOLOR_OPA);
return (lv_opa_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_outline_width(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_OUTLINE_WIDTH);
return (lv_coord_t)v.num;
}
static inline lv_color_t lv_obj_get_style_outline_color(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_OUTLINE_COLOR);
return v.color;
}
static inline lv_color_t lv_obj_get_style_outline_color_filtered(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_OUTLINE_COLOR_FILTERED);
return v.color;
}
static inline lv_opa_t lv_obj_get_style_outline_opa(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_OUTLINE_OPA);
return (lv_opa_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_outline_pad(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_OUTLINE_PAD);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_shadow_width(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_SHADOW_WIDTH);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_shadow_ofs_x(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_SHADOW_OFS_X);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_shadow_ofs_y(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_SHADOW_OFS_Y);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_shadow_spread(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_SHADOW_SPREAD);
return (lv_coord_t)v.num;
}
static inline lv_color_t lv_obj_get_style_shadow_color(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_SHADOW_COLOR);
return v.color;
}
static inline lv_color_t lv_obj_get_style_shadow_color_filtered(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_SHADOW_COLOR_FILTERED);
return v.color;
}
static inline lv_opa_t lv_obj_get_style_shadow_opa(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_SHADOW_OPA);
return (lv_opa_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_line_width(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_LINE_WIDTH);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_line_dash_width(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_LINE_DASH_WIDTH);
return (lv_coord_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_line_dash_gap(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_LINE_DASH_GAP);
return (lv_coord_t)v.num;
}
static inline bool lv_obj_get_style_line_rounded(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_LINE_ROUNDED);
return (bool)v.num;
}
static inline lv_color_t lv_obj_get_style_line_color(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_LINE_COLOR);
return v.color;
}
static inline lv_color_t lv_obj_get_style_line_color_filtered(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_LINE_COLOR_FILTERED);
return v.color;
}
static inline lv_opa_t lv_obj_get_style_line_opa(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_LINE_OPA);
return (lv_opa_t)v.num;
}
static inline lv_coord_t lv_obj_get_style_arc_width(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_ARC_WIDTH);
return (lv_coord_t)v.num;
}
static inline bool lv_obj_get_style_arc_rounded(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_ARC_ROUNDED);
return (bool)v.num;
}
static inline lv_color_t lv_obj_get_style_arc_color(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_ARC_COLOR);
return v.color;
}
static inline lv_color_t lv_obj_get_style_arc_color_filtered(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_ARC_COLOR_FILTERED);
return v.color;
}
static inline lv_opa_t lv_obj_get_style_arc_opa(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_ARC_OPA);
return (lv_opa_t)v.num;
}
static inline const void * lv_obj_get_style_arc_img_src(const struct _lv_obj_t * obj, uint32_t part)
{
lv_style_value_t v = lv_obj_get_style_prop(obj, part, LV_STYLE_ARC_IMG_SRC);
return (const void *)v.ptr;
}
void lv_obj_set_style_width(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_min_width(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_max_width(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_height(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_min_height(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_max_height(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_x(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_y(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_align(struct _lv_obj_t * obj, lv_align_t value, lv_style_selector_t selector);
void lv_obj_set_style_transform_width(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_transform_height(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_translate_x(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_translate_y(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_transform_zoom(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_transform_angle(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_pad_top(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_pad_bottom(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_pad_left(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_pad_right(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_pad_row(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_pad_column(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_radius(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_clip_corner(struct _lv_obj_t * obj, bool value, lv_style_selector_t selector);
void lv_obj_set_style_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector);
void lv_obj_set_style_color_filter_dsc(struct _lv_obj_t * obj, const lv_color_filter_dsc_t * value, lv_style_selector_t selector);
void lv_obj_set_style_color_filter_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector);
void lv_obj_set_style_anim_time(struct _lv_obj_t * obj, uint32_t value, lv_style_selector_t selector);
void lv_obj_set_style_anim_speed(struct _lv_obj_t * obj, uint32_t value, lv_style_selector_t selector);
void lv_obj_set_style_transition(struct _lv_obj_t * obj, const lv_style_transition_dsc_t * value, lv_style_selector_t selector);
void lv_obj_set_style_blend_mode(struct _lv_obj_t * obj, lv_blend_mode_t value, lv_style_selector_t selector);
void lv_obj_set_style_layout(struct _lv_obj_t * obj, uint16_t value, lv_style_selector_t selector);
void lv_obj_set_style_base_dir(struct _lv_obj_t * obj, lv_base_dir_t value, lv_style_selector_t selector);
void lv_obj_set_style_bg_color(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector);
void lv_obj_set_style_bg_color_filtered(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector);
void lv_obj_set_style_bg_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector);
void lv_obj_set_style_bg_grad_color(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector);
void lv_obj_set_style_bg_grad_color_filtered(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector);
void lv_obj_set_style_bg_grad_dir(struct _lv_obj_t * obj, lv_grad_dir_t value, lv_style_selector_t selector);
void lv_obj_set_style_bg_main_stop(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_bg_grad_stop(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_bg_img_src(struct _lv_obj_t * obj, const void * value, lv_style_selector_t selector);
void lv_obj_set_style_bg_img_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector);
void lv_obj_set_style_bg_img_recolor(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector);
void lv_obj_set_style_bg_img_recolor_filtered(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector);
void lv_obj_set_style_bg_img_recolor_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector);
void lv_obj_set_style_bg_img_tiled(struct _lv_obj_t * obj, bool value, lv_style_selector_t selector);
void lv_obj_set_style_border_color(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector);
void lv_obj_set_style_border_color_filtered(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector);
void lv_obj_set_style_border_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector);
void lv_obj_set_style_border_width(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_border_side(struct _lv_obj_t * obj, lv_border_side_t value, lv_style_selector_t selector);
void lv_obj_set_style_border_post(struct _lv_obj_t * obj, bool value, lv_style_selector_t selector);
void lv_obj_set_style_text_color(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector);
void lv_obj_set_style_text_color_filtered(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector);
void lv_obj_set_style_text_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector);
void lv_obj_set_style_text_font(struct _lv_obj_t * obj, const lv_font_t * value, lv_style_selector_t selector);
void lv_obj_set_style_text_letter_space(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_text_line_space(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_text_decor(struct _lv_obj_t * obj, lv_text_decor_t value, lv_style_selector_t selector);
void lv_obj_set_style_text_align(struct _lv_obj_t * obj, lv_text_align_t value, lv_style_selector_t selector);
void lv_obj_set_style_img_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector);
void lv_obj_set_style_img_recolor(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector);
void lv_obj_set_style_img_recolor_filtered(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector);
void lv_obj_set_style_img_recolor_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector);
void lv_obj_set_style_outline_width(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_outline_color(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector);
void lv_obj_set_style_outline_color_filtered(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector);
void lv_obj_set_style_outline_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector);
void lv_obj_set_style_outline_pad(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_shadow_width(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_shadow_ofs_x(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_shadow_ofs_y(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_shadow_spread(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_shadow_color(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector);
void lv_obj_set_style_shadow_color_filtered(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector);
void lv_obj_set_style_shadow_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector);
void lv_obj_set_style_line_width(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_line_dash_width(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_line_dash_gap(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_line_rounded(struct _lv_obj_t * obj, bool value, lv_style_selector_t selector);
void lv_obj_set_style_line_color(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector);
void lv_obj_set_style_line_color_filtered(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector);
void lv_obj_set_style_line_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector);
void lv_obj_set_style_arc_width(struct _lv_obj_t * obj, lv_coord_t value, lv_style_selector_t selector);
void lv_obj_set_style_arc_rounded(struct _lv_obj_t * obj, bool value, lv_style_selector_t selector);
void lv_obj_set_style_arc_color(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector);
void lv_obj_set_style_arc_color_filtered(struct _lv_obj_t * obj, lv_color_t value, lv_style_selector_t selector);
void lv_obj_set_style_arc_opa(struct _lv_obj_t * obj, lv_opa_t value, lv_style_selector_t selector);
void lv_obj_set_style_arc_img_src(struct _lv_obj_t * obj, const void * value, lv_style_selector_t selector);
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_obj_style_gen.h | C | apache-2.0 | 28,647 |
/**
* @file lv_obj_tree.c
*
*/
/*********************
* INCLUDES
*********************/
#include <stdlib.h>
#include "lv_obj.h"
#include "lv_indev.h"
#include "../misc/lv_anim.h"
#include "../misc/lv_gc.h"
#include "../misc/lv_async.h"
/*********************
* DEFINES
*********************/
#define MY_CLASS &lv_obj_class
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static void lv_obj_del_async_cb(void * obj);
static void obj_del_core(lv_obj_t * obj);
static lv_obj_tree_walk_res_t walk_core(lv_obj_t * obj, lv_obj_tree_walk_cb_t cb, void * user_data);
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
void lv_obj_del(lv_obj_t * obj)
{
LV_LOG_TRACE("begin (delete %p)", (void *)obj);
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_obj_invalidate(obj);
lv_obj_t * par = lv_obj_get_parent(obj);
if(par) {
lv_obj_scrollbar_invalidate(par);
}
lv_disp_t * disp = NULL;
bool act_scr_del = false;
if(par == NULL) {
disp = lv_obj_get_disp(obj);
if(!disp) return; /*Shouldn't happen*/
if(disp->act_scr == obj) act_scr_del = true;
}
obj_del_core(obj);
/*Call the ancestor's event handler to the parent to notify it about the child delete*/
if(par) {
lv_obj_readjust_scroll(par, LV_ANIM_OFF);
lv_obj_scrollbar_invalidate(par);
lv_event_send(par, LV_EVENT_CHILD_CHANGED, NULL);
lv_event_send(par, LV_EVENT_CHILD_DELETED, NULL);
}
/*Handle if the active screen was deleted*/
if(act_scr_del) {
LV_LOG_WARN("the active screen was deleted");
disp->act_scr = NULL;
}
LV_ASSERT_MEM_INTEGRITY();
LV_LOG_TRACE("finished (delete %p)", (void *)obj);
}
void lv_obj_clean(lv_obj_t * obj)
{
LV_LOG_TRACE("begin (delete %p)", (void *)obj);
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_obj_invalidate(obj);
lv_obj_t * child = lv_obj_get_child(obj, 0);
while(child) {
obj_del_core(child);
child = lv_obj_get_child(obj, 0);
}
/*Just to remove scroll animations if any*/
lv_obj_scroll_to(obj, 0, 0, LV_ANIM_OFF);
if(obj->spec_attr) {
obj->spec_attr->scroll.x = 0;
obj->spec_attr->scroll.y = 0;
}
LV_ASSERT_MEM_INTEGRITY();
LV_LOG_TRACE("finished (delete %p)", (void *)obj);
}
void lv_obj_del_delayed(lv_obj_t * obj, uint32_t delay_ms)
{
lv_anim_t a;
lv_anim_init(&a);
lv_anim_set_var(&a, obj);
lv_anim_set_exec_cb(&a, NULL);
lv_anim_set_time(&a, 1);
lv_anim_set_delay(&a, delay_ms);
lv_anim_set_ready_cb(&a, lv_obj_del_anim_ready_cb);
lv_anim_start(&a);
}
void lv_obj_del_anim_ready_cb(lv_anim_t * a)
{
lv_obj_del(a->var);
}
void lv_obj_del_async(lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_async_call(lv_obj_del_async_cb, obj);
}
void lv_obj_set_parent(lv_obj_t * obj, lv_obj_t * parent)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
LV_ASSERT_OBJ(parent, MY_CLASS);
if(obj->parent == NULL) {
LV_LOG_WARN("Can't set the parent of a screen");
return;
}
if(parent == NULL) {
LV_LOG_WARN("Can't set parent == NULL to an object");
return;
}
lv_obj_invalidate(obj);
lv_obj_allocate_spec_attr(parent);
lv_obj_t * old_parent = obj->parent;
/*Remove the object from the old parent's child list*/
int32_t i;
for(i = lv_obj_get_index(obj); i <= (int32_t)lv_obj_get_child_cnt(old_parent) - 2; i++) {
old_parent->spec_attr->children[i] = old_parent->spec_attr->children[i + 1];
}
old_parent->spec_attr->child_cnt--;
if(old_parent->spec_attr->child_cnt) {
old_parent->spec_attr->children = lv_mem_realloc(old_parent->spec_attr->children,
old_parent->spec_attr->child_cnt * (sizeof(lv_obj_t *)));
}
else {
lv_mem_free(old_parent->spec_attr->children);
old_parent->spec_attr->children = NULL;
}
/*Add the child to the new parent as the last (newest child)*/
parent->spec_attr->child_cnt++;
parent->spec_attr->children = lv_mem_realloc(parent->spec_attr->children,
parent->spec_attr->child_cnt * (sizeof(lv_obj_t *)));
parent->spec_attr->children[lv_obj_get_child_cnt(parent) - 1] = obj;
obj->parent = parent;
/*Notify the original parent because one of its children is lost*/
lv_event_send(old_parent, LV_EVENT_CHILD_CHANGED, obj);
lv_event_send(old_parent, LV_EVENT_CHILD_DELETED, NULL);
/*Notify the new parent about the child*/
lv_event_send(parent, LV_EVENT_CHILD_CHANGED, obj);
lv_event_send(parent, LV_EVENT_CHILD_CREATED, NULL);
lv_obj_mark_layout_as_dirty(obj);
lv_obj_invalidate(obj);
}
void lv_obj_move_to_index(lv_obj_t * obj, int32_t index)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
const int32_t old_index = lv_obj_get_index(obj);
lv_obj_t * parent = lv_obj_get_parent(obj);
if(index < 0) return;
if(index >= (int32_t) lv_obj_get_child_cnt(parent)) return;
if(index == old_index) return;
int32_t i = old_index;
if(index < old_index) {
while(i > index) {
parent->spec_attr->children[i] = parent->spec_attr->children[i - 1];
i--;
}
}
else {
while(i < index) {
parent->spec_attr->children[i] = parent->spec_attr->children[i + 1];
i++;
}
}
parent->spec_attr->children[index] = obj;
lv_event_send(parent, LV_EVENT_CHILD_CHANGED, NULL);
lv_obj_invalidate(parent);
}
void lv_obj_swap(lv_obj_t * obj1, lv_obj_t * obj2)
{
LV_ASSERT_OBJ(obj1, MY_CLASS);
LV_ASSERT_OBJ(obj2, MY_CLASS);
lv_obj_t * parent = lv_obj_get_parent(obj1);
lv_obj_t * parent2 = lv_obj_get_parent(obj2);
uint_fast32_t index1 = lv_obj_get_index(obj1);
uint_fast32_t index2 = lv_obj_get_index(obj2);
lv_event_send(parent2, LV_EVENT_CHILD_DELETED, obj2);
lv_event_send(parent, LV_EVENT_CHILD_DELETED, obj1);
parent->spec_attr->children[index1] = obj2;
parent2->spec_attr->children[index2] = obj1;
lv_event_send(parent, LV_EVENT_CHILD_CHANGED, obj2);
lv_event_send(parent, LV_EVENT_CHILD_CREATED, obj2);
lv_event_send(parent2, LV_EVENT_CHILD_CHANGED, obj1);
lv_event_send(parent2, LV_EVENT_CHILD_CREATED, obj1);
lv_obj_invalidate(parent);
if(parent != parent2) {
lv_obj_invalidate(parent2);
}
lv_group_swap_obj(obj1, obj2);
}
lv_obj_t * lv_obj_get_screen(const lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
const lv_obj_t * par = obj;
const lv_obj_t * act_par;
do {
act_par = par;
par = lv_obj_get_parent(act_par);
} while(par != NULL);
return (lv_obj_t *)act_par;
}
lv_disp_t * lv_obj_get_disp(const lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
const lv_obj_t * scr;
if(obj->parent == NULL) scr = obj; /*`obj` is a screen*/
else scr = lv_obj_get_screen(obj); /*get the screen of `obj`*/
lv_disp_t * d;
_LV_LL_READ(&LV_GC_ROOT(_lv_disp_ll), d) {
uint32_t i;
for(i = 0; i < d->screen_cnt; i++) {
if(d->screens[i] == scr) return d;
}
}
LV_LOG_WARN("No screen found");
return NULL;
}
lv_obj_t * lv_obj_get_parent(const lv_obj_t * obj)
{
if(obj == NULL) return NULL;
LV_ASSERT_OBJ(obj, MY_CLASS);
return obj->parent;
}
lv_obj_t * lv_obj_get_child(const lv_obj_t * obj, int32_t id)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
if(obj->spec_attr == NULL) return NULL;
uint32_t idu;
if(id < 0) {
id = obj->spec_attr->child_cnt + id;
if(id < 0) return NULL;
idu = (uint32_t) id;
}
else {
idu = id;
}
if(idu >= obj->spec_attr->child_cnt) return NULL;
else return obj->spec_attr->children[id];
}
uint32_t lv_obj_get_child_cnt(const lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
if(obj->spec_attr == NULL) return 0;
return obj->spec_attr->child_cnt;
}
uint32_t lv_obj_get_index(const lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_obj_t * parent = lv_obj_get_parent(obj);
if(parent == NULL) return 0;
uint32_t i = 0;
for(i = 0; i < lv_obj_get_child_cnt(parent); i++) {
if(lv_obj_get_child(parent, i) == obj) return i;
}
return 0xFFFFFFFF; /*Shouldn't happen*/
}
void lv_obj_tree_walk(lv_obj_t * start_obj, lv_obj_tree_walk_cb_t cb, void * user_data)
{
walk_core(start_obj, cb, user_data);
}
/**********************
* STATIC FUNCTIONS
**********************/
static void lv_obj_del_async_cb(void * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_obj_del(obj);
}
static void obj_del_core(lv_obj_t * obj)
{
/*Let the user free the resources used in `LV_EVENT_DELETE`*/
lv_res_t res = lv_event_send(obj, LV_EVENT_DELETE, NULL);
if(res == LV_RES_INV) return;
/*Recursively delete the children*/
lv_obj_t * child = lv_obj_get_child(obj, 0);
while(child) {
obj_del_core(child);
child = lv_obj_get_child(obj, 0);
}
lv_group_t * group = lv_obj_get_group(obj);
/*Reset all input devices if the object to delete is used*/
lv_indev_t * indev = lv_indev_get_next(NULL);
while(indev) {
if(indev->proc.types.pointer.act_obj == obj || indev->proc.types.pointer.last_obj == obj) {
lv_indev_reset(indev, obj);
}
if(indev->proc.types.pointer.last_pressed == obj) {
indev->proc.types.pointer.last_pressed = NULL;
}
if(indev->group == group && obj == lv_indev_get_obj_act()) {
lv_indev_reset(indev, obj);
}
indev = lv_indev_get_next(indev);
}
/*All children deleted. Now clean up the object specific data*/
_lv_obj_destruct(obj);
/*Remove the screen for the screen list*/
if(obj->parent == NULL) {
lv_disp_t * disp = lv_obj_get_disp(obj);
uint32_t i;
/*Find the screen in the list*/
for(i = 0; i < disp->screen_cnt; i++) {
if(disp->screens[i] == obj) break;
}
uint32_t id = i;
for(i = id; i < disp->screen_cnt - 1; i++) {
disp->screens[i] = disp->screens[i + 1];
}
disp->screen_cnt--;
disp->screens = lv_mem_realloc(disp->screens, disp->screen_cnt * sizeof(lv_obj_t *));
}
/*Remove the object from the child list of its parent*/
else {
uint32_t id = lv_obj_get_index(obj);
uint32_t i;
for(i = id; i < obj->parent->spec_attr->child_cnt - 1; i++) {
obj->parent->spec_attr->children[i] = obj->parent->spec_attr->children[i + 1];
}
obj->parent->spec_attr->child_cnt--;
obj->parent->spec_attr->children = lv_mem_realloc(obj->parent->spec_attr->children,
obj->parent->spec_attr->child_cnt * sizeof(lv_obj_t *));
}
/*Free the object itself*/
lv_mem_free(obj);
}
static lv_obj_tree_walk_res_t walk_core(lv_obj_t * obj, lv_obj_tree_walk_cb_t cb, void * user_data)
{
lv_obj_tree_walk_res_t res = LV_OBJ_TREE_WALK_NEXT;
if(obj == NULL) {
lv_disp_t * disp = lv_disp_get_next(NULL);
while(disp) {
uint32_t i;
for(i = 0; i < disp->screen_cnt; i++) {
walk_core(disp->screens[i], cb, user_data);
}
disp = lv_disp_get_next(disp);
}
return LV_OBJ_TREE_WALK_END; /*The value doesn't matter as it wasn't called recursively*/
}
res = cb(obj, user_data);
if(res == LV_OBJ_TREE_WALK_END) return LV_OBJ_TREE_WALK_END;
if(res != LV_OBJ_TREE_WALK_SKIP_CHILDREN) {
uint32_t i;
for(i = 0; i < lv_obj_get_child_cnt(obj); i++) {
res = walk_core(lv_obj_get_child(obj, i), cb, user_data);
if(res == LV_OBJ_TREE_WALK_END) return LV_OBJ_TREE_WALK_END;
}
}
return LV_OBJ_TREE_WALK_NEXT;
}
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_obj_tree.c | C | apache-2.0 | 12,200 |
/**
* @file struct _lv_obj_tree.h
*
*/
#ifndef LV_OBJ_TREE_H
#define LV_OBJ_TREE_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include <stddef.h>
#include <stdbool.h>
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
struct _lv_obj_t;
struct _lv_obj_class_t;
typedef enum {
LV_OBJ_TREE_WALK_NEXT,
LV_OBJ_TREE_WALK_SKIP_CHILDREN,
LV_OBJ_TREE_WALK_END,
} lv_obj_tree_walk_res_t;
typedef lv_obj_tree_walk_res_t (*lv_obj_tree_walk_cb_t)(struct _lv_obj_t *, void *);
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Delete an object and all of its children.
* Also remove the objects from their group and remove all animations (if any).
* Send `LV_EVENT_DELETED` to deleted objects.
* @param obj pointer to an object
*/
void lv_obj_del(struct _lv_obj_t * obj);
/**
* Delete all children of an object.
* Also remove the objects from their group and remove all animations (if any).
* Send `LV_EVENT_DELETED` to deleted objects.
* @param obj pointer to an object
*/
void lv_obj_clean(struct _lv_obj_t * obj);
/**
* Delete an object after some delay
* @param obj pointer to an object
* @param delay_ms time to wait before delete in milliseconds
*/
void lv_obj_del_delayed(struct _lv_obj_t * obj, uint32_t delay_ms);
/**
* A function to be easily used in animation ready callback to delete an object when the animation is ready
* @param a pointer to the animation
*/
void lv_obj_del_anim_ready_cb(lv_anim_t * a);
/**
* Helper function for asynchronously deleting objects.
* Useful for cases where you can't delete an object directly in an `LV_EVENT_DELETE` handler (i.e. parent).
* @param obj object to delete
* @see lv_async_call
*/
void lv_obj_del_async(struct _lv_obj_t * obj);
/**
* Move the parent of an object. The relative coordinates will be kept.
*
* @param obj pointer to an object whose parent needs to be changed
* @param parent pointer to the new parent
*/
void lv_obj_set_parent(struct _lv_obj_t * obj, struct _lv_obj_t * parent);
/**
* Swap the positions of two objects.
* When used in listboxes, it can be used to sort the listbox items.
* @param obj1 pointer to the first object
* @param obj2 pointer to the second object
*/
void lv_obj_swap(struct _lv_obj_t * obj1, struct _lv_obj_t * obj2);
/**
* moves the object to the given index in its parent.
* When used in listboxes, it can be used to sort the listbox items.
* @param obj pointer to the object to be moved.
* @param index new index in parent.
* @note to move to the foreground: lv_obj_move_to_index(obj, 0)
* @note to move forward (up): lv_obj_move_to_index(obj, lv_obj_get_index(obj) - 1)
*/
void lv_obj_move_to_index(struct _lv_obj_t * obj, int32_t index);
/**
* Get the screen of an object
* @param obj pointer to an object
* @return pointer to the object's screen
*/
struct _lv_obj_t * lv_obj_get_screen(const struct _lv_obj_t * obj);
/**
* Get the display of the object
* @param obj pointer to an object
* @return pointer to the object's display
*/
lv_disp_t * lv_obj_get_disp(const struct _lv_obj_t * obj);
/**
* Get the parent of an object
* @param obj pointer to an object
* @return the parent of the object. (NULL if `obj` was a screen)
*/
struct _lv_obj_t * lv_obj_get_parent(const struct _lv_obj_t * obj);
/**
* Get the child of an object by the child's index.
* @param obj pointer to an object whose child should be get
* @param id the index of the child.
* 0: the oldest (firstly created) child
* 1: the second oldest
* child count-1: the youngest
* -1: the youngest
* -2: the second youngest
* @return pointer to the child or NULL if the index was invalid
*/
struct _lv_obj_t * lv_obj_get_child(const struct _lv_obj_t * obj, int32_t id);
/**
* Get the number of children
* @param obj pointer to an object
* @return the number of children
*/
uint32_t lv_obj_get_child_cnt(const struct _lv_obj_t * obj);
/**
* Get the index of a child.
* @param obj pointer to an object
* @return the child index of the object.
* E.g. 0: the oldest (firstly created child)
*/
uint32_t lv_obj_get_index(const struct _lv_obj_t * obj);
/**
* Iterate through all children of any object.
* @param start_obj start integrating from this object
* @param cb call this callback on the objects
* @param user_data pointer to any user related data (will be passed to `cb`)
*/
void lv_obj_tree_walk(struct _lv_obj_t * start_obj, lv_obj_tree_walk_cb_t cb, void * user_data);
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_OBJ_TREE_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_obj_tree.h | C | apache-2.0 | 4,999 |
/**
* @file lv_refr.c
*
*/
/*********************
* INCLUDES
*********************/
#include <stddef.h>
#include "lv_refr.h"
#include "lv_disp.h"
#include "../hal/lv_hal_tick.h"
#include "../hal/lv_hal_disp.h"
#include "../misc/lv_timer.h"
#include "../misc/lv_mem.h"
#include "../misc/lv_math.h"
#include "../misc/lv_gc.h"
#include "../draw/lv_draw.h"
#include "../font/lv_font_fmt_txt.h"
#if LV_USE_PERF_MONITOR || LV_USE_MEM_MONITOR
#include "../widgets/lv_label.h"
#endif
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static void lv_refr_join_area(void);
static void lv_refr_areas(void);
static void lv_refr_area(const lv_area_t * area_p);
static void lv_refr_area_part(const lv_area_t * area_p);
static lv_obj_t * lv_refr_get_top_obj(const lv_area_t * area_p, lv_obj_t * obj);
static void lv_refr_obj_and_children(lv_obj_t * top_p, const lv_area_t * mask_p);
static void lv_refr_obj(lv_obj_t * obj, const lv_area_t * mask_ori_p);
static void draw_buf_flush(void);
static void call_flush_cb(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_p);
/**********************
* STATIC VARIABLES
**********************/
static uint32_t px_num;
static lv_disp_t * disp_refr; /*Display being refreshed*/
#if LV_USE_PERF_MONITOR
static uint32_t fps_sum_cnt;
static uint32_t fps_sum_all;
#endif
/**********************
* MACROS
**********************/
#if LV_LOG_TRACE_DISP_REFR
#define REFR_TRACE(...) LV_LOG_TRACE(__VA_ARGS__)
#else
#define REFR_TRACE(...)
#endif
/**********************
* GLOBAL FUNCTIONS
**********************/
/**
* Initialize the screen refresh subsystem
*/
void _lv_refr_init(void)
{
/*Nothing to do*/
}
/**
* Redraw the invalidated areas now.
* Normally the redrawing is periodically executed in `lv_timer_handler` but a long blocking process
* can prevent the call of `lv_timer_handler`. In this case if the GUI is updated in the process
* (e.g. progress bar) this function can be called when the screen should be updated.
* @param disp pointer to display to refresh. NULL to refresh all displays.
*/
void lv_refr_now(lv_disp_t * disp)
{
lv_anim_refr_now();
if(disp) {
_lv_disp_refr_timer(disp->refr_timer);
}
else {
lv_disp_t * d;
d = lv_disp_get_next(NULL);
while(d) {
_lv_disp_refr_timer(d->refr_timer);
d = lv_disp_get_next(d);
}
}
}
/**
* Invalidate an area on display to redraw it
* @param area_p pointer to area which should be invalidated (NULL: delete the invalidated areas)
* @param disp pointer to display where the area should be invalidated (NULL can be used if there is
* only one display)
*/
void _lv_inv_area(lv_disp_t * disp, const lv_area_t * area_p)
{
if(!disp) disp = lv_disp_get_default();
if(!disp) return;
/*Clear the invalidate buffer if the parameter is NULL*/
if(area_p == NULL) {
disp->inv_p = 0;
return;
}
lv_area_t scr_area;
scr_area.x1 = 0;
scr_area.y1 = 0;
scr_area.x2 = lv_disp_get_hor_res(disp) - 1;
scr_area.y2 = lv_disp_get_ver_res(disp) - 1;
lv_area_t com_area;
bool suc;
suc = _lv_area_intersect(&com_area, area_p, &scr_area);
if(suc == false) return; /*Out of the screen*/
/*If there were at least 1 invalid area in full refresh mode, redraw the whole screen*/
if(disp->driver->full_refresh) {
disp->inv_areas[0] = scr_area;
disp->inv_p = 1;
lv_timer_resume(disp->refr_timer);
return;
}
if(disp->driver->rounder_cb) disp->driver->rounder_cb(disp->driver, &com_area);
/*Save only if this area is not in one of the saved areas*/
uint16_t i;
for(i = 0; i < disp->inv_p; i++) {
if(_lv_area_is_in(&com_area, &disp->inv_areas[i], 0) != false) return;
}
/*Save the area*/
if(disp->inv_p < LV_INV_BUF_SIZE) {
lv_area_copy(&disp->inv_areas[disp->inv_p], &com_area);
}
else { /*If no place for the area add the screen*/
disp->inv_p = 0;
lv_area_copy(&disp->inv_areas[disp->inv_p], &scr_area);
}
disp->inv_p++;
lv_timer_resume(disp->refr_timer);
}
/**
* Get the display which is being refreshed
* @return the display being refreshed
*/
lv_disp_t * _lv_refr_get_disp_refreshing(void)
{
return disp_refr;
}
/**
* Set the display which is being refreshed.
* It shouldn't be used directly by the user.
* It can be used to trick the drawing functions about there is an active display.
* @param the display being refreshed
*/
void _lv_refr_set_disp_refreshing(lv_disp_t * disp)
{
disp_refr = disp;
}
/**
* Called periodically to handle the refreshing
* @param tmr pointer to the timer itself
*/
void _lv_disp_refr_timer(lv_timer_t * tmr)
{
REFR_TRACE("begin");
uint32_t start = lv_tick_get();
volatile uint32_t elaps = 0;
disp_refr = tmr->user_data;
#if LV_USE_PERF_MONITOR == 0 && LV_USE_MEM_MONITOR == 0
/**
* Ensure the timer does not run again automatically.
* This is done before refreshing in case refreshing invalidates something else.
*/
lv_timer_pause(tmr);
#endif
/*Refresh the screen's layout if required*/
lv_obj_update_layout(disp_refr->act_scr);
if(disp_refr->prev_scr) lv_obj_update_layout(disp_refr->prev_scr);
lv_obj_update_layout(disp_refr->top_layer);
lv_obj_update_layout(disp_refr->sys_layer);
/*Do nothing if there is no active screen*/
if(disp_refr->act_scr == NULL) {
disp_refr->inv_p = 0;
LV_LOG_WARN("there is no active screen");
REFR_TRACE("finished");
return;
}
lv_refr_join_area();
lv_refr_areas();
/*If refresh happened ...*/
if(disp_refr->inv_p != 0) {
if(disp_refr->driver->full_refresh) {
draw_buf_flush();
}
/*Clean up*/
lv_memset_00(disp_refr->inv_areas, sizeof(disp_refr->inv_areas));
lv_memset_00(disp_refr->inv_area_joined, sizeof(disp_refr->inv_area_joined));
disp_refr->inv_p = 0;
elaps = lv_tick_elaps(start);
/*Call monitor cb if present*/
if(disp_refr->driver->monitor_cb) {
disp_refr->driver->monitor_cb(disp_refr->driver, elaps, px_num);
}
}
lv_mem_buf_free_all();
_lv_font_clean_up_fmt_txt();
#if LV_DRAW_COMPLEX
_lv_draw_mask_cleanup();
#endif
#if LV_USE_PERF_MONITOR && LV_USE_LABEL
static lv_obj_t * perf_label = NULL;
if(perf_label == NULL) {
perf_label = lv_label_create(lv_layer_sys());
lv_obj_set_style_bg_opa(perf_label, LV_OPA_50, 0);
lv_obj_set_style_bg_color(perf_label, lv_color_black(), 0);
lv_obj_set_style_text_color(perf_label, lv_color_white(), 0);
lv_obj_set_style_pad_top(perf_label, 3, 0);
lv_obj_set_style_pad_bottom(perf_label, 3, 0);
lv_obj_set_style_pad_left(perf_label, 3, 0);
lv_obj_set_style_pad_right(perf_label, 3, 0);
lv_obj_set_style_text_align(perf_label, LV_TEXT_ALIGN_RIGHT, 0);
lv_label_set_text(perf_label, "?");
lv_obj_align(perf_label, LV_USE_PERF_MONITOR_POS, 0, 0);
}
static uint32_t perf_last_time = 0;
static uint32_t elaps_sum = 0;
static uint32_t frame_cnt = 0;
if(lv_tick_elaps(perf_last_time) < 300) {
if(px_num > 5000) {
elaps_sum += elaps;
frame_cnt ++;
}
}
else {
perf_last_time = lv_tick_get();
uint32_t fps_limit = 1000 / disp_refr->refr_timer->period;
unsigned int fps;
if(elaps_sum == 0) elaps_sum = 1;
if(frame_cnt == 0) fps = fps_limit;
else fps = (1000 * frame_cnt) / elaps_sum;
elaps_sum = 0;
frame_cnt = 0;
if(fps > fps_limit) fps = fps_limit;
fps_sum_all += fps;
fps_sum_cnt ++;
unsigned int cpu = 100 - lv_timer_get_idle();
lv_label_set_text_fmt(perf_label, "%u FPS\n%u%% CPU", fps, cpu);
}
#endif
#if LV_USE_MEM_MONITOR && LV_MEM_CUSTOM == 0 && LV_USE_LABEL
static lv_obj_t * mem_label = NULL;
if(mem_label == NULL) {
mem_label = lv_label_create(lv_layer_sys());
lv_obj_set_style_bg_opa(mem_label, LV_OPA_50, 0);
lv_obj_set_style_bg_color(mem_label, lv_color_black(), 0);
lv_obj_set_style_text_color(mem_label, lv_color_white(), 0);
lv_obj_set_style_pad_top(mem_label, 3, 0);
lv_obj_set_style_pad_bottom(mem_label, 3, 0);
lv_obj_set_style_pad_left(mem_label, 3, 0);
lv_obj_set_style_pad_right(mem_label, 3, 0);
lv_label_set_text(mem_label, "?");
lv_obj_align(mem_label, LV_USE_MEM_MONITOR_POS, 0, 0);
}
static uint32_t mem_last_time = 0;
if(lv_tick_elaps(mem_last_time) > 300) {
mem_last_time = lv_tick_get();
lv_mem_monitor_t mon;
lv_mem_monitor(&mon);
uint32_t used_size = mon.total_size - mon.free_size;;
uint32_t used_kb = used_size / 1024;
uint32_t used_kb_tenth = (used_size - (used_kb * 1024)) / 102;
lv_label_set_text_fmt(mem_label, "%" LV_PRIu32 ".%" LV_PRIu32 " kB used (%d %%)\n" \
"%d%% frag.", used_kb, used_kb_tenth, mon.used_pct,
mon.frag_pct);
}
#endif
REFR_TRACE("finished");
}
#if LV_USE_PERF_MONITOR
uint32_t lv_refr_get_fps_avg(void)
{
return fps_sum_all / fps_sum_cnt;
}
#endif
/**********************
* STATIC FUNCTIONS
**********************/
/**
* Join the areas which has got common parts
*/
static void lv_refr_join_area(void)
{
uint32_t join_from;
uint32_t join_in;
lv_area_t joined_area;
for(join_in = 0; join_in < disp_refr->inv_p; join_in++) {
if(disp_refr->inv_area_joined[join_in] != 0) continue;
/*Check all areas to join them in 'join_in'*/
for(join_from = 0; join_from < disp_refr->inv_p; join_from++) {
/*Handle only unjoined areas and ignore itself*/
if(disp_refr->inv_area_joined[join_from] != 0 || join_in == join_from) {
continue;
}
/*Check if the areas are on each other*/
if(_lv_area_is_on(&disp_refr->inv_areas[join_in], &disp_refr->inv_areas[join_from]) == false) {
continue;
}
_lv_area_join(&joined_area, &disp_refr->inv_areas[join_in], &disp_refr->inv_areas[join_from]);
/*Join two area only if the joined area size is smaller*/
if(lv_area_get_size(&joined_area) < (lv_area_get_size(&disp_refr->inv_areas[join_in]) +
lv_area_get_size(&disp_refr->inv_areas[join_from]))) {
lv_area_copy(&disp_refr->inv_areas[join_in], &joined_area);
/*Mark 'join_form' is joined into 'join_in'*/
disp_refr->inv_area_joined[join_from] = 1;
}
}
}
}
/**
* Refresh the joined areas
*/
static void lv_refr_areas(void)
{
px_num = 0;
if(disp_refr->inv_p == 0) return;
/*Find the last area which will be drawn*/
int32_t i;
int32_t last_i = 0;
for(i = disp_refr->inv_p - 1; i >= 0; i--) {
if(disp_refr->inv_area_joined[i] == 0) {
last_i = i;
break;
}
}
disp_refr->driver->draw_buf->last_area = 0;
disp_refr->driver->draw_buf->last_part = 0;
for(i = 0; i < disp_refr->inv_p; i++) {
/*Refresh the unjoined areas*/
if(disp_refr->inv_area_joined[i] == 0) {
if(i == last_i) disp_refr->driver->draw_buf->last_area = 1;
disp_refr->driver->draw_buf->last_part = 0;
lv_refr_area(&disp_refr->inv_areas[i]);
px_num += lv_area_get_size(&disp_refr->inv_areas[i]);
}
}
}
/**
* Refresh an area if there is Virtual Display Buffer
* @param area_p pointer to an area to refresh
*/
static void lv_refr_area(const lv_area_t * area_p)
{
/*With full refresh just redraw directly into the buffer*/
if(disp_refr->driver->full_refresh) {
lv_disp_draw_buf_t * draw_buf = lv_disp_get_draw_buf(disp_refr);
draw_buf->area.x1 = 0;
draw_buf->area.x2 = lv_disp_get_hor_res(disp_refr) - 1;
draw_buf->area.y1 = 0;
draw_buf->area.y2 = lv_disp_get_ver_res(disp_refr) - 1;
disp_refr->driver->draw_buf->last_part = 1;
lv_refr_area_part(area_p);
return;
}
/*Normal refresh: draw the area in parts*/
lv_disp_draw_buf_t * draw_buf = lv_disp_get_draw_buf(disp_refr);
/*Calculate the max row num*/
lv_coord_t w = lv_area_get_width(area_p);
lv_coord_t h = lv_area_get_height(area_p);
lv_coord_t y2 = area_p->y2 >= lv_disp_get_ver_res(disp_refr) ?
lv_disp_get_ver_res(disp_refr) - 1 : area_p->y2;
int32_t max_row = (uint32_t)draw_buf->size / w;
if(max_row > h) max_row = h;
/*Round down the lines of draw_buf if rounding is added*/
if(disp_refr->driver->rounder_cb) {
lv_area_t tmp;
tmp.x1 = 0;
tmp.x2 = 0;
tmp.y1 = 0;
lv_coord_t h_tmp = max_row;
do {
tmp.y2 = h_tmp - 1;
disp_refr->driver->rounder_cb(disp_refr->driver, &tmp);
/*If this height fits into `max_row` then fine*/
if(lv_area_get_height(&tmp) <= max_row) break;
/*Decrement the height of the area until it fits into `max_row` after rounding*/
h_tmp--;
} while(h_tmp > 0);
if(h_tmp <= 0) {
LV_LOG_WARN("Can't set draw_buf height using the round function. (Wrong round_cb or to "
"small draw_buf)");
return;
}
else {
max_row = tmp.y2 + 1;
}
}
/*In direct mode draw directly on the absolute coordinates of the buffer*/
if(disp_refr->driver->direct_mode) {
draw_buf->area.x1 = 0;
draw_buf->area.x2 = lv_disp_get_hor_res(disp_refr) - 1;
draw_buf->area.y1 = 0;
draw_buf->area.y2 = lv_disp_get_ver_res(disp_refr) - 1;
disp_refr->driver->draw_buf->last_part = disp_refr->driver->draw_buf->last_area;
lv_refr_area_part(area_p);
}
/*Else assume the buffer starts at the given area*/
else {
/*Always use the full row*/
lv_coord_t row;
lv_coord_t row_last = 0;
for(row = area_p->y1; row + max_row - 1 <= y2; row += max_row) {
/*Calc. the next y coordinates of draw_buf*/
draw_buf->area.x1 = area_p->x1;
draw_buf->area.x2 = area_p->x2;
draw_buf->area.y1 = row;
draw_buf->area.y2 = row + max_row - 1;
if(draw_buf->area.y2 > y2) draw_buf->area.y2 = y2;
row_last = draw_buf->area.y2;
if(y2 == row_last) disp_refr->driver->draw_buf->last_part = 1;
lv_refr_area_part(area_p);
}
/*If the last y coordinates are not handled yet ...*/
if(y2 != row_last) {
/*Calc. the next y coordinates of draw_buf*/
draw_buf->area.x1 = area_p->x1;
draw_buf->area.x2 = area_p->x2;
draw_buf->area.y1 = row;
draw_buf->area.y2 = y2;
disp_refr->driver->draw_buf->last_part = 1;
lv_refr_area_part(area_p);
}
}
}
/**
* Refresh a part of an area which is on the actual Virtual Display Buffer
* @param area_p pointer to an area to refresh
*/
static void lv_refr_area_part(const lv_area_t * area_p)
{
lv_disp_draw_buf_t * draw_buf = lv_disp_get_draw_buf(disp_refr);
/* Below the `area_p` area will be redrawn into the draw buffer.
* In single buffered mode wait here until the buffer is freed.*/
if(draw_buf->buf1 && !draw_buf->buf2) {
while(draw_buf->flushing) {
if(disp_refr->driver->wait_cb) disp_refr->driver->wait_cb(disp_refr->driver);
}
}
lv_obj_t * top_act_scr = NULL;
lv_obj_t * top_prev_scr = NULL;
/*Get the new mask from the original area and the act. draw_buf
It will be a part of 'area_p'*/
lv_area_t start_mask;
_lv_area_intersect(&start_mask, area_p, &draw_buf->area);
/*Get the most top object which is not covered by others*/
top_act_scr = lv_refr_get_top_obj(&start_mask, lv_disp_get_scr_act(disp_refr));
if(disp_refr->prev_scr) {
top_prev_scr = lv_refr_get_top_obj(&start_mask, disp_refr->prev_scr);
}
/*Draw a display background if there is no top object*/
if(top_act_scr == NULL && top_prev_scr == NULL) {
if(disp_refr->bg_fn) {
disp_refr->bg_fn(&start_mask);
} else if(disp_refr->bg_img) {
lv_draw_img_dsc_t dsc;
lv_draw_img_dsc_init(&dsc);
dsc.opa = disp_refr->bg_opa;
lv_img_header_t header;
lv_res_t res;
res = lv_img_decoder_get_info(disp_refr->bg_img, &header);
if(res == LV_RES_OK) {
lv_area_t a;
lv_area_set(&a, 0, 0, header.w - 1, header.h - 1);
lv_draw_img(&a, &start_mask, disp_refr->bg_img, &dsc);
}
else {
LV_LOG_WARN("Can't draw the background image");
}
}
else {
lv_draw_rect_dsc_t dsc;
lv_draw_rect_dsc_init(&dsc);
dsc.bg_color = disp_refr->bg_color;
dsc.bg_opa = disp_refr->bg_opa;
lv_draw_rect(&start_mask, &start_mask, &dsc);
}
}
/*Refresh the previous screen if any*/
if(disp_refr->prev_scr) {
/*Get the most top object which is not covered by others*/
if(top_prev_scr == NULL) {
top_prev_scr = disp_refr->prev_scr;
}
/*Do the refreshing from the top object*/
lv_refr_obj_and_children(top_prev_scr, &start_mask);
}
if(top_act_scr == NULL) {
top_act_scr = disp_refr->act_scr;
}
/*Do the refreshing from the top object*/
lv_refr_obj_and_children(top_act_scr, &start_mask);
/*Also refresh top and sys layer unconditionally*/
lv_refr_obj_and_children(lv_disp_get_layer_top(disp_refr), &start_mask);
lv_refr_obj_and_children(lv_disp_get_layer_sys(disp_refr), &start_mask);
/*In true double buffered mode flush only once when all areas were rendered.
*In normal mode flush after every area*/
if(disp_refr->driver->full_refresh == false) {
draw_buf_flush();
}
}
/**
* Search the most top object which fully covers an area
* @param area_p pointer to an area
* @param obj the first object to start the searching (typically a screen)
* @return
*/
static lv_obj_t * lv_refr_get_top_obj(const lv_area_t * area_p, lv_obj_t * obj)
{
lv_obj_t * found_p = NULL;
/*If this object is fully cover the draw area check the children too*/
if(_lv_area_is_in(area_p, &obj->coords, 0) && lv_obj_has_flag(obj, LV_OBJ_FLAG_HIDDEN) == false) {
lv_cover_check_info_t info;
info.res = LV_COVER_RES_COVER;
info.area = area_p;
lv_event_send(obj, LV_EVENT_COVER_CHECK, &info);
if(info.res == LV_COVER_RES_MASKED) return NULL;
uint32_t i;
uint32_t child_cnt = lv_obj_get_child_cnt(obj);
for(i = 0; i < child_cnt; i++) {
lv_obj_t * child = obj->spec_attr->children[i];
found_p = lv_refr_get_top_obj(area_p, child);
/*If a children is ok then break*/
if(found_p != NULL) {
break;
}
}
/*If no better children use this object*/
if(found_p == NULL) {
if(info.res == LV_COVER_RES_COVER) {
found_p = obj;
}
}
}
return found_p;
}
/**
* Make the refreshing from an object. Draw all its children and the youngers too.
* @param top_p pointer to an objects. Start the drawing from it.
* @param mask_p pointer to an area, the objects will be drawn only here
*/
static void lv_refr_obj_and_children(lv_obj_t * top_p, const lv_area_t * mask_p)
{
/*Normally always will be a top_obj (at least the screen)
*but in special cases (e.g. if the screen has alpha) it won't.
*In this case use the screen directly*/
if(top_p == NULL) top_p = lv_disp_get_scr_act(disp_refr);
if(top_p == NULL) return; /*Shouldn't happen*/
/*Refresh the top object and its children*/
lv_refr_obj(top_p, mask_p);
/*Draw the 'younger' sibling objects because they can be on top_obj*/
lv_obj_t * par;
lv_obj_t * border_p = top_p;
par = lv_obj_get_parent(top_p);
/*Do until not reach the screen*/
while(par != NULL) {
bool go = false;
uint32_t i;
uint32_t child_cnt = lv_obj_get_child_cnt(par);
for(i = 0; i < child_cnt; i++) {
lv_obj_t * child = par->spec_attr->children[i];
if(!go) {
if(child == border_p) go = true;
}
else {
/*Refresh the objects*/
lv_refr_obj(child, mask_p);
}
}
/*Call the post draw draw function of the parents of the to object*/
lv_event_send(par, LV_EVENT_DRAW_POST_BEGIN, (void *)mask_p);
lv_event_send(par, LV_EVENT_DRAW_POST, (void *)mask_p);
lv_event_send(par, LV_EVENT_DRAW_POST_END, (void *)mask_p);
/*The new border will be the last parents,
*so the 'younger' brothers of parent will be refreshed*/
border_p = par;
/*Go a level deeper*/
par = lv_obj_get_parent(par);
}
}
/**
* Refresh an object an all of its children. (Called recursively)
* @param obj pointer to an object to refresh
* @param mask_ori_p pointer to an area, the objects will be drawn only here
*/
static void lv_refr_obj(lv_obj_t * obj, const lv_area_t * mask_ori_p)
{
/*Do not refresh hidden objects*/
if(lv_obj_has_flag(obj, LV_OBJ_FLAG_HIDDEN)) return;
bool union_ok; /*Store the return value of area_union*/
/*Truncate the original mask to the coordinates of the parent
*because the parent and its children are visible only here*/
lv_area_t obj_mask;
lv_area_t obj_ext_mask;
lv_area_t obj_area;
lv_coord_t ext_size = _lv_obj_get_ext_draw_size(obj);
lv_obj_get_coords(obj, &obj_area);
obj_area.x1 -= ext_size;
obj_area.y1 -= ext_size;
obj_area.x2 += ext_size;
obj_area.y2 += ext_size;
union_ok = _lv_area_intersect(&obj_ext_mask, mask_ori_p, &obj_area);
/*Draw the parent and its children only if they ore on 'mask_parent'*/
if(union_ok != false) {
/*Redraw the object*/
lv_event_send(obj, LV_EVENT_DRAW_MAIN_BEGIN, &obj_ext_mask);
lv_event_send(obj, LV_EVENT_DRAW_MAIN, &obj_ext_mask);
lv_event_send(obj, LV_EVENT_DRAW_MAIN_END, &obj_ext_mask);
#if LV_USE_REFR_DEBUG
lv_color_t debug_color = lv_color_make(lv_rand(0, 0xFF), lv_rand(0, 0xFF), lv_rand(0, 0xFF));
lv_draw_rect_dsc_t draw_dsc;
lv_draw_rect_dsc_init(&draw_dsc);
draw_dsc.bg_color.full = debug_color.full;
draw_dsc.bg_opa = LV_OPA_20;
draw_dsc.border_width = 1;
draw_dsc.border_opa = LV_OPA_30;
draw_dsc.border_color = debug_color;
lv_draw_rect(&obj_ext_mask, &obj_ext_mask, &draw_dsc);
#endif
/*Create a new 'obj_mask' without 'ext_size' because the children can't be visible there*/
lv_obj_get_coords(obj, &obj_area);
union_ok = _lv_area_intersect(&obj_mask, mask_ori_p, &obj_area);
if(union_ok != false) {
lv_area_t mask_child; /*Mask from obj and its child*/
lv_area_t child_area;
uint32_t i;
uint32_t child_cnt = lv_obj_get_child_cnt(obj);
for(i = 0; i < child_cnt; i++) {
lv_obj_t * child = obj->spec_attr->children[i];
lv_obj_get_coords(child, &child_area);
ext_size = _lv_obj_get_ext_draw_size(child);
child_area.x1 -= ext_size;
child_area.y1 -= ext_size;
child_area.x2 += ext_size;
child_area.y2 += ext_size;
/*Get the union (common parts) of original mask (from obj)
*and its child*/
union_ok = _lv_area_intersect(&mask_child, &obj_mask, &child_area);
/*If the parent and the child has common area then refresh the child*/
if(union_ok) {
/*Refresh the next children*/
lv_refr_obj(child, &mask_child);
}
}
}
/*If all the children are redrawn make 'post draw' draw*/
lv_event_send(obj, LV_EVENT_DRAW_POST_BEGIN, &obj_ext_mask);
lv_event_send(obj, LV_EVENT_DRAW_POST, &obj_ext_mask);
lv_event_send(obj, LV_EVENT_DRAW_POST_END, &obj_ext_mask);
}
}
static void draw_buf_rotate_180(lv_disp_drv_t * drv, lv_area_t * area, lv_color_t * color_p)
{
lv_coord_t area_w = lv_area_get_width(area);
lv_coord_t area_h = lv_area_get_height(area);
uint32_t total = area_w * area_h;
/*Swap the beginning and end values*/
lv_color_t tmp;
uint32_t i = total - 1, j = 0;
while(i > j) {
tmp = color_p[i];
color_p[i] = color_p[j];
color_p[j] = tmp;
i--;
j++;
}
lv_coord_t tmp_coord;
tmp_coord = area->y2;
area->y2 = drv->ver_res - area->y1 - 1;
area->y1 = drv->ver_res - tmp_coord - 1;
tmp_coord = area->x2;
area->x2 = drv->hor_res - area->x1 - 1;
area->x1 = drv->hor_res - tmp_coord - 1;
}
static LV_ATTRIBUTE_FAST_MEM void draw_buf_rotate_90(bool invert_i, lv_coord_t area_w, lv_coord_t area_h,
lv_color_t * orig_color_p, lv_color_t * rot_buf)
{
uint32_t invert = (area_w * area_h) - 1;
uint32_t initial_i = ((area_w - 1) * area_h);
for(lv_coord_t y = 0; y < area_h; y++) {
uint32_t i = initial_i + y;
if(invert_i)
i = invert - i;
for(lv_coord_t x = 0; x < area_w; x++) {
rot_buf[i] = *(orig_color_p++);
if(invert_i)
i += area_h;
else
i -= area_h;
}
}
}
/**
* Helper function for draw_buf_rotate_90_sqr. Given a list of four numbers, rotate the entire list to the left.
*/
static inline void draw_buf_rotate4(lv_color_t * a, lv_color_t * b, lv_color_t * c, lv_color_t * d)
{
lv_color_t tmp;
tmp = *a;
*a = *b;
*b = *c;
*c = *d;
*d = tmp;
}
/**
* Rotate a square image 90/270 degrees in place.
* @note inspired by https://stackoverflow.com/a/43694906
*/
static void draw_buf_rotate_90_sqr(bool is_270, lv_coord_t w, lv_color_t * color_p)
{
for(lv_coord_t i = 0; i < w / 2; i++) {
for(lv_coord_t j = 0; j < (w + 1) / 2; j++) {
lv_coord_t inv_i = (w - 1) - i;
lv_coord_t inv_j = (w - 1) - j;
if(is_270) {
draw_buf_rotate4(
&color_p[i * w + j],
&color_p[inv_j * w + i],
&color_p[inv_i * w + inv_j],
&color_p[j * w + inv_i]
);
}
else {
draw_buf_rotate4(
&color_p[i * w + j],
&color_p[j * w + inv_i],
&color_p[inv_i * w + inv_j],
&color_p[inv_j * w + i]
);
}
}
}
}
/**
* Rotate the draw_buf to the display's native orientation.
*/
static void draw_buf_rotate(lv_area_t * area, lv_color_t * color_p)
{
lv_disp_drv_t * drv = disp_refr->driver;
if(disp_refr->driver->full_refresh && drv->sw_rotate) {
LV_LOG_ERROR("cannot rotate a full refreshed display!");
return;
}
if(drv->rotated == LV_DISP_ROT_180) {
draw_buf_rotate_180(drv, area, color_p);
call_flush_cb(drv, area, color_p);
}
else if(drv->rotated == LV_DISP_ROT_90 || drv->rotated == LV_DISP_ROT_270) {
/*Allocate a temporary buffer to store rotated image*/
lv_color_t * rot_buf = NULL;
lv_disp_draw_buf_t * draw_buf = lv_disp_get_draw_buf(disp_refr);
lv_coord_t area_w = lv_area_get_width(area);
lv_coord_t area_h = lv_area_get_height(area);
/*Determine the maximum number of rows that can be rotated at a time*/
lv_coord_t max_row = LV_MIN((lv_coord_t)((LV_DISP_ROT_MAX_BUF / sizeof(lv_color_t)) / area_w), area_h);
lv_coord_t init_y_off;
init_y_off = area->y1;
if(drv->rotated == LV_DISP_ROT_90) {
area->y2 = drv->ver_res - area->x1 - 1;
area->y1 = area->y2 - area_w + 1;
}
else {
area->y1 = area->x1;
area->y2 = area->y1 + area_w - 1;
}
/*Rotate the screen in chunks, flushing after each one*/
lv_coord_t row = 0;
while(row < area_h) {
lv_coord_t height = LV_MIN(max_row, area_h - row);
draw_buf->flushing = 1;
if((row == 0) && (area_h >= area_w)) {
/*Rotate the initial area as a square*/
height = area_w;
draw_buf_rotate_90_sqr(drv->rotated == LV_DISP_ROT_270, area_w, color_p);
if(drv->rotated == LV_DISP_ROT_90) {
area->x1 = init_y_off;
area->x2 = init_y_off + area_w - 1;
}
else {
area->x2 = drv->hor_res - 1 - init_y_off;
area->x1 = area->x2 - area_w + 1;
}
}
else {
/*Rotate other areas using a maximum buffer size*/
if(rot_buf == NULL) rot_buf = lv_mem_buf_get(LV_DISP_ROT_MAX_BUF);
draw_buf_rotate_90(drv->rotated == LV_DISP_ROT_270, area_w, height, color_p, rot_buf);
if(drv->rotated == LV_DISP_ROT_90) {
area->x1 = init_y_off + row;
area->x2 = init_y_off + row + height - 1;
}
else {
area->x2 = drv->hor_res - 1 - init_y_off - row;
area->x1 = area->x2 - height + 1;
}
}
/* The original part (chunk of the current area) were split into more parts here.
* Set the original last_part flag on the last part of rotation. */
if(row + height >= area_h && draw_buf->last_area && draw_buf->last_part) {
draw_buf->flushing_last = 1;
}
else {
draw_buf->flushing_last = 0;
}
/*Flush the completed area to the display*/
call_flush_cb(drv, area, rot_buf == NULL ? color_p : rot_buf);
/*FIXME: Rotation forces legacy behavior where rendering and flushing are done serially*/
while(draw_buf->flushing) {
if(drv->wait_cb) drv->wait_cb(drv);
}
color_p += area_w * height;
row += height;
}
/*Free the allocated buffer at the end if necessary*/
if(rot_buf != NULL) lv_mem_buf_release(rot_buf);
}
}
/**
* Flush the content of the draw buffer
*/
static void draw_buf_flush(void)
{
lv_disp_draw_buf_t * draw_buf = lv_disp_get_draw_buf(disp_refr);
lv_color_t * color_p = draw_buf->buf_act;
/*Flush the rendered content to the display*/
lv_disp_t * disp = _lv_refr_get_disp_refreshing();
if(disp->driver->gpu_wait_cb) disp->driver->gpu_wait_cb(disp->driver);
/* In double buffered mode wait until the other buffer is freed
* and driver is ready to receive the new buffer */
if(draw_buf->buf1 && draw_buf->buf2) {
while(draw_buf->flushing) {
if(disp_refr->driver->wait_cb) disp_refr->driver->wait_cb(disp_refr->driver);
}
}
draw_buf->flushing = 1;
if(disp_refr->driver->draw_buf->last_area && disp_refr->driver->draw_buf->last_part) draw_buf->flushing_last = 1;
else draw_buf->flushing_last = 0;
if(disp->driver->flush_cb) {
/*Rotate the buffer to the display's native orientation if necessary*/
if(disp->driver->rotated != LV_DISP_ROT_NONE && disp->driver->sw_rotate) {
draw_buf_rotate(&draw_buf->area, draw_buf->buf_act);
}
else {
call_flush_cb(disp->driver, &draw_buf->area, color_p);
}
}
if(draw_buf->buf1 && draw_buf->buf2) {
if(draw_buf->buf_act == draw_buf->buf1)
draw_buf->buf_act = draw_buf->buf2;
else
draw_buf->buf_act = draw_buf->buf1;
}
}
static void call_flush_cb(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_p)
{
REFR_TRACE("Calling flush_cb on (%d;%d)(%d;%d) area with %p image pointer", area->x1, area->y1, area->x2, area->y2,
(void *)color_p);
lv_area_t offset_area = {
.x1 = area->x1 + drv->offset_x,
.y1 = area->y1 + drv->offset_y,
.x2 = area->x2 + drv->offset_x,
.y2 = area->y2 + drv->offset_y
};
drv->flush_cb(drv, &offset_area, color_p);
}
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_refr.c | C | apache-2.0 | 33,289 |
/**
* @file lv_refr.h
*
*/
#ifndef LV_REFR_H
#define LV_REFR_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "lv_obj.h"
#include <stdbool.h>
/*********************
* DEFINES
*********************/
#define LV_REFR_TASK_PRIO LV_TASK_PRIO_MID
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
/**
* Initialize the screen refresh subsystem
*/
void _lv_refr_init(void);
/**
* Redraw the invalidated areas now.
* Normally the redrawing is periodically executed in `lv_timer_handler` but a long blocking process
* can prevent the call of `lv_timer_handler`. In this case if the GUI is updated in the process
* (e.g. progress bar) this function can be called when the screen should be updated.
* @param disp pointer to display to refresh. NULL to refresh all displays.
*/
void lv_refr_now(lv_disp_t * disp);
/**
* Invalidate an area on display to redraw it
* @param area_p pointer to area which should be invalidated (NULL: delete the invalidated areas)
* @param disp pointer to display where the area should be invalidated (NULL can be used if there is
* only one display)
*/
void _lv_inv_area(lv_disp_t * disp, const lv_area_t * area_p);
/**
* Get the display which is being refreshed
* @return the display being refreshed
*/
lv_disp_t * _lv_refr_get_disp_refreshing(void);
/**
* Set the display which is being refreshed.
* It shouldn't be used directly by the user.
* It can be used to trick the drawing functions about there is an active display.
* @param the display being refreshed
*/
void _lv_refr_set_disp_refreshing(lv_disp_t * disp);
#if LV_USE_PERF_MONITOR
/**
* Get the average FPS since start up
* @return the average FPS
*/
uint32_t lv_refr_get_fps_avg(void);
#endif
/**
* Called periodically to handle the refreshing
* @param timer pointer to the timer itself
*/
void _lv_disp_refr_timer(lv_timer_t * timer);
/**********************
* STATIC FUNCTIONS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_REFR_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_refr.h | C | apache-2.0 | 2,366 |
/**
* @file lv_theme.c
*
*/
/*********************
* INCLUDES
*********************/
#include "../../lvgl.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static void apply_theme(lv_theme_t * th, lv_obj_t * obj);
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
lv_theme_t * lv_theme_get_from_obj(lv_obj_t * obj)
{
lv_disp_t * disp = obj ? lv_obj_get_disp(obj) : lv_disp_get_default();
return lv_disp_get_theme(disp);
}
/**
* Apply the active theme on an object
* @param obj pointer to an object
* @param name the name of the theme element to apply. E.g. `LV_THEME_BTN`
*/
void lv_theme_apply(lv_obj_t * obj)
{
lv_theme_t * th = lv_theme_get_from_obj(obj);
if(th == NULL) return;
lv_obj_remove_style_all(obj);
apply_theme(th, obj); /*Apply the theme including the base theme(s)*/
}
/**
* Set a base theme for a theme.
* The styles from the base them will be added before the styles of the current theme.
* Arbitrary long chain of themes can be created by setting base themes.
* @param new_theme pointer to theme which base should be set
* @param base pointer to the base theme
*/
void lv_theme_set_parent(lv_theme_t * new_theme, lv_theme_t * base)
{
new_theme->parent = base;
}
/**
* Set a callback for a theme.
* The callback is used to add styles to different objects
* @param theme pointer to theme which callback should be set
* @param cb pointer to the callback
*/
void lv_theme_set_apply_cb(lv_theme_t * theme, lv_theme_apply_cb_t apply_cb)
{
theme->apply_cb = apply_cb;
}
const lv_font_t * lv_theme_get_font_small(lv_obj_t * obj)
{
lv_theme_t * th = lv_theme_get_from_obj(obj);
return th ? th->font_small : LV_FONT_DEFAULT;
}
const lv_font_t * lv_theme_get_font_normal(lv_obj_t * obj)
{
lv_theme_t * th = lv_theme_get_from_obj(obj);
return th ? th->font_normal : LV_FONT_DEFAULT;
}
const lv_font_t * lv_theme_get_font_large(lv_obj_t * obj)
{
lv_theme_t * th = lv_theme_get_from_obj(obj);
return th ? th->font_large : LV_FONT_DEFAULT;
}
lv_color_t lv_theme_get_color_primary(lv_obj_t * obj)
{
lv_theme_t * th = lv_theme_get_from_obj(obj);
return th ? th->color_primary : lv_palette_main(LV_PALETTE_BLUE_GREY);
}
lv_color_t lv_theme_get_color_secondary(lv_obj_t * obj)
{
lv_theme_t * th = lv_theme_get_from_obj(obj);
return th ? th->color_secondary : lv_palette_main(LV_PALETTE_BLUE);
}
/**********************
* STATIC FUNCTIONS
**********************/
static void apply_theme(lv_theme_t * th, lv_obj_t * obj)
{
if(th->parent) apply_theme(th->parent, obj);
if(th->apply_cb) th->apply_cb(th, obj);
}
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_theme.c | C | apache-2.0 | 2,948 |
/**
*@file lv_theme.h
*
*/
#ifndef LV_THEME_H
#define LV_THEME_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "../core/lv_obj.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
struct _lv_theme_t;
struct _lv_disp_t;
typedef void (*lv_theme_apply_cb_t)(struct _lv_theme_t *, lv_obj_t *);
typedef struct _lv_theme_t {
lv_theme_apply_cb_t apply_cb;
struct _lv_theme_t * parent; /**< Apply the current theme's style on top of this theme.*/
void * user_data;
struct _lv_disp_t * disp;
lv_color_t color_primary;
lv_color_t color_secondary;
const lv_font_t * font_small;
const lv_font_t * font_normal;
const lv_font_t * font_large;
uint32_t flags; /*Any custom flag used by the theme*/
} lv_theme_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Get the theme assigned to the display of the object
* @param obj pointer to object
* @return the theme of the object's display (can be NULL)
*/
lv_theme_t * lv_theme_get_from_obj(lv_obj_t * obj);
/**
* Apply the active theme on an object
* @param obj pointer to an object
*/
void lv_theme_apply(lv_obj_t * obj);
/**
* Set a base theme for a theme.
* The styles from the base them will be added before the styles of the current theme.
* Arbitrary long chain of themes can be created by setting base themes.
* @param new_theme pointer to theme which base should be set
* @param parent pointer to the base theme
*/
void lv_theme_set_parent(lv_theme_t * new_theme, lv_theme_t * parent);
/**
* Set an apply callback for a theme.
* The apply callback is used to add styles to different objects
* @param theme pointer to theme which callback should be set
* @param apply_cb pointer to the callback
*/
void lv_theme_set_apply_cb(lv_theme_t * theme, lv_theme_apply_cb_t apply_cb);
/**
* Get the small font of the theme
* @return pointer to the font
*/
const lv_font_t * lv_theme_get_font_small(lv_obj_t * obj);
/**
* Get the normal font of the theme
* @return pointer to the font
*/
const lv_font_t * lv_theme_get_font_normal(lv_obj_t * obj);
/**
* Get the subtitle font of the theme
* @return pointer to the font
*/
const lv_font_t * lv_theme_get_font_large(lv_obj_t * obj);
/**
* Get the primary color of the theme
* @return the color
*/
lv_color_t lv_theme_get_color_primary(lv_obj_t * obj);
/**
* Get the secondary color of the theme
* @return the color
*/
lv_color_t lv_theme_get_color_secondary(lv_obj_t * obj);
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_THEME_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/core/lv_theme.h | C | apache-2.0 | 2,779 |
/**
* @file lv_draw.h
*
*/
#ifndef LV_DRAW_H
#define LV_DRAW_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "../lv_conf_internal.h"
#include "../misc/lv_style.h"
#include "../misc/lv_txt.h"
#include "lv_img_decoder.h"
#include "lv_img_cache.h"
#include "lv_draw_rect.h"
#include "lv_draw_label.h"
#include "lv_draw_img.h"
#include "lv_draw_line.h"
#include "lv_draw_triangle.h"
#include "lv_draw_arc.h"
#include "lv_draw_blend.h"
#include "lv_draw_mask.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* GLOBAL PROTOTYPES
**********************/
/**********************
* GLOBAL VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* POST INCLUDES
*********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_DRAW_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/draw/lv_draw.h | C | apache-2.0 | 1,003 |
CSRCS += lv_draw_arc.c
CSRCS += lv_draw_blend.c
CSRCS += lv_draw_img.c
CSRCS += lv_draw_label.c
CSRCS += lv_draw_line.c
CSRCS += lv_draw_mask.c
CSRCS += lv_draw_rect.c
CSRCS += lv_draw_triangle.c
CSRCS += lv_img_buf.c
CSRCS += lv_img_cache.c
CSRCS += lv_img_decoder.c
DEPPATH += --dep-path $(LVGL_DIR)/$(LVGL_DIR_NAME)/src/draw
VPATH += :$(LVGL_DIR)/$(LVGL_DIR_NAME)/src/draw
CFLAGS += "-I$(LVGL_DIR)/$(LVGL_DIR_NAME)/src/draw"
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/draw/lv_draw.mk | Makefile | apache-2.0 | 430 |
/**
* @file lv_draw_arc.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_draw_arc.h"
#include "lv_draw_rect.h"
#include "lv_draw_mask.h"
#include "../misc/lv_math.h"
#include "../misc/lv_log.h"
#include "../misc/lv_mem.h"
/*********************
* DEFINES
*********************/
#define SPLIT_RADIUS_LIMIT 10 /*With radius greater than this the arc will drawn in quarters. A quarter is drawn only if there is arc in it*/
#define SPLIT_ANGLE_GAP_LIMIT 60 /*With small gaps in the arc don't bother with splitting because there is nothing to skip.*/
/**********************
* TYPEDEFS
**********************/
typedef struct {
lv_coord_t center_x;
lv_coord_t center_y;
lv_coord_t radius;
uint16_t start_angle;
uint16_t end_angle;
uint16_t start_quarter;
uint16_t end_quarter;
lv_coord_t width;
lv_draw_rect_dsc_t * draw_dsc;
const lv_area_t * draw_area;
const lv_area_t * clip_area;
} quarter_draw_dsc_t;
/**********************
* STATIC PROTOTYPES
**********************/
#if LV_DRAW_COMPLEX
static void draw_quarter_0(quarter_draw_dsc_t * q);
static void draw_quarter_1(quarter_draw_dsc_t * q);
static void draw_quarter_2(quarter_draw_dsc_t * q);
static void draw_quarter_3(quarter_draw_dsc_t * q);
static void get_rounded_area(int16_t angle, lv_coord_t radius, uint8_t thickness, lv_area_t * res_area);
#endif /*LV_DRAW_COMPLEX*/
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
LV_ATTRIBUTE_FAST_MEM void lv_draw_arc_dsc_init(lv_draw_arc_dsc_t * dsc)
{
lv_memset_00(dsc, sizeof(lv_draw_arc_dsc_t));
dsc->width = 1;
dsc->opa = LV_OPA_COVER;
dsc->color = lv_color_black();
}
void lv_draw_arc(lv_coord_t center_x, lv_coord_t center_y, uint16_t radius, uint16_t start_angle, uint16_t end_angle,
const lv_area_t * clip_area, const lv_draw_arc_dsc_t * dsc)
{
#if LV_DRAW_COMPLEX
if(dsc->opa <= LV_OPA_MIN) return;
if(dsc->width == 0) return;
if(start_angle == end_angle) return;
lv_coord_t width = dsc->width;
if(width > radius) width = radius;
lv_draw_rect_dsc_t cir_dsc;
lv_draw_rect_dsc_init(&cir_dsc);
cir_dsc.blend_mode = dsc->blend_mode;
if(dsc->img_src) {
cir_dsc.bg_opa = LV_OPA_TRANSP;
cir_dsc.bg_img_src = dsc->img_src;
cir_dsc.bg_img_opa = dsc->opa;
}
else {
cir_dsc.bg_opa = dsc->opa;
cir_dsc.bg_color = dsc->color;
}
lv_area_t area_out;
area_out.x1 = center_x - radius;
area_out.y1 = center_y - radius;
area_out.x2 = center_x + radius - 1; /*-1 because the center already belongs to the left/bottom part*/
area_out.y2 = center_y + radius - 1;
lv_area_t area_in;
lv_area_copy(&area_in, &area_out);
area_in.x1 += dsc->width;
area_in.y1 += dsc->width;
area_in.x2 -= dsc->width;
area_in.y2 -= dsc->width;
/*Create inner the mask*/
int16_t mask_in_id = LV_MASK_ID_INV;
lv_draw_mask_radius_param_t mask_in_param;
if(lv_area_get_width(&area_in) > 0 && lv_area_get_height(&area_in) > 0) {
lv_draw_mask_radius_init(&mask_in_param, &area_in, LV_RADIUS_CIRCLE, true);
mask_in_id = lv_draw_mask_add(&mask_in_param, NULL);
}
lv_draw_mask_radius_param_t mask_out_param;
lv_draw_mask_radius_init(&mask_out_param, &area_out, LV_RADIUS_CIRCLE, false);
int16_t mask_out_id = lv_draw_mask_add(&mask_out_param, NULL);
/*Draw a full ring*/
if(start_angle + 360 == end_angle || start_angle == end_angle + 360) {
cir_dsc.radius = LV_RADIUS_CIRCLE;
lv_draw_rect(&area_out, clip_area, &cir_dsc);
lv_draw_mask_remove_id(mask_out_id);
if(mask_in_id != LV_MASK_ID_INV) lv_draw_mask_remove_id(mask_in_id);
return;
}
while(start_angle >= 360) start_angle -= 360;
while(end_angle >= 360) end_angle -= 360;
lv_draw_mask_angle_param_t mask_angle_param;
lv_draw_mask_angle_init(&mask_angle_param, center_x, center_y, start_angle, end_angle);
int16_t mask_angle_id = lv_draw_mask_add(&mask_angle_param, NULL);
int32_t angle_gap;
if(end_angle > start_angle) {
angle_gap = 360 - (end_angle - start_angle);
}
else {
angle_gap = start_angle - end_angle;
}
if(angle_gap > SPLIT_ANGLE_GAP_LIMIT && radius > SPLIT_RADIUS_LIMIT) {
/*Handle each quarter individually and skip which is empty*/
quarter_draw_dsc_t q_dsc;
q_dsc.center_x = center_x;
q_dsc.center_y = center_y;
q_dsc.radius = radius;
q_dsc.start_angle = start_angle;
q_dsc.end_angle = end_angle;
q_dsc.start_quarter = (start_angle / 90) & 0x3;
q_dsc.end_quarter = (end_angle / 90) & 0x3;
q_dsc.width = width;
q_dsc.draw_dsc = &cir_dsc;
q_dsc.draw_area = &area_out;
q_dsc.clip_area = clip_area;
draw_quarter_0(&q_dsc);
draw_quarter_1(&q_dsc);
draw_quarter_2(&q_dsc);
draw_quarter_3(&q_dsc);
}
else {
lv_draw_rect(&area_out, clip_area, &cir_dsc);
}
lv_draw_mask_free_param(&mask_angle_param);
lv_draw_mask_free_param(&mask_out_param);
lv_draw_mask_free_param(&mask_in_param);
lv_draw_mask_remove_id(mask_angle_id);
lv_draw_mask_remove_id(mask_out_id);
if(mask_in_id != LV_MASK_ID_INV) lv_draw_mask_remove_id(mask_in_id);
if(dsc->rounded) {
lv_draw_mask_radius_param_t mask_end_param;
lv_area_t round_area;
get_rounded_area(start_angle, radius, width, &round_area);
round_area.x1 += center_x;
round_area.x2 += center_x;
round_area.y1 += center_y;
round_area.y2 += center_y;
lv_area_t clip_area2;
if(_lv_area_intersect(&clip_area2, clip_area, &round_area)) {
lv_draw_mask_radius_init(&mask_end_param, &round_area, LV_RADIUS_CIRCLE, false);
int16_t mask_end_id = lv_draw_mask_add(&mask_end_param, NULL);
lv_draw_rect(&area_out, &clip_area2, &cir_dsc);
lv_draw_mask_remove_id(mask_end_id);
lv_draw_mask_free_param(&mask_end_param);
}
get_rounded_area(end_angle, radius, width, &round_area);
round_area.x1 += center_x;
round_area.x2 += center_x;
round_area.y1 += center_y;
round_area.y2 += center_y;
if(_lv_area_intersect(&clip_area2, clip_area, &round_area)) {
lv_draw_mask_radius_init(&mask_end_param, &round_area, LV_RADIUS_CIRCLE, false);
int16_t mask_end_id = lv_draw_mask_add(&mask_end_param, NULL);
lv_draw_rect(&area_out, &clip_area2, &cir_dsc);
lv_draw_mask_remove_id(mask_end_id);
lv_draw_mask_free_param(&mask_end_param);
}
}
#else
LV_LOG_WARN("Can't draw arc with LV_DRAW_COMPLEX == 0");
LV_UNUSED(center_x);
LV_UNUSED(center_y);
LV_UNUSED(radius);
LV_UNUSED(start_angle);
LV_UNUSED(end_angle);
LV_UNUSED(clip_area);
LV_UNUSED(dsc);
#endif /*LV_DRAW_COMPLEX*/
}
void lv_draw_arc_get_area(lv_coord_t x, lv_coord_t y, uint16_t radius, uint16_t start_angle, uint16_t end_angle,
lv_coord_t w, bool rounded, lv_area_t * area)
{
lv_coord_t rout = radius;
/*Special case: full arc invalidation */
if(end_angle == start_angle + 360) {
area->x1 = x - rout;
area->y1 = y - rout;
area->x2 = x + rout;
area->y2 = y + rout;
return;
}
if(start_angle > 360) start_angle -= 360;
if(end_angle > 360) end_angle -= 360;
lv_coord_t rin = radius - w;
lv_coord_t extra_area = rounded ? w / 2 + 1 : 0;
uint8_t start_quarter = start_angle / 90;
uint8_t end_quarter = end_angle / 90;
/*360 deg still counts as quarter 3 (360 / 90 would be 4)*/
if(start_quarter == 4) start_quarter = 3;
if(end_quarter == 4) end_quarter = 3;
if(start_quarter == end_quarter && start_angle <= end_angle) {
if(start_quarter == 0) {
area->y1 = y + ((lv_trigo_sin(start_angle) * rin) >> LV_TRIGO_SHIFT) - extra_area;
area->x2 = x + ((lv_trigo_sin(start_angle + 90) * rout) >> LV_TRIGO_SHIFT) + extra_area;
area->y2 = y + ((lv_trigo_sin(end_angle) * rout) >> LV_TRIGO_SHIFT) + extra_area;
area->x1 = x + ((lv_trigo_sin(end_angle + 90) * rin) >> LV_TRIGO_SHIFT) - extra_area;
}
else if(start_quarter == 1) {
area->y2 = y + ((lv_trigo_sin(start_angle) * rout) >> LV_TRIGO_SHIFT) + extra_area;
area->x2 = x + ((lv_trigo_sin(start_angle + 90) * rin) >> LV_TRIGO_SHIFT) + extra_area;
area->y1 = y + ((lv_trigo_sin(end_angle) * rin) >> LV_TRIGO_SHIFT) - extra_area;
area->x1 = x + ((lv_trigo_sin(end_angle + 90) * rout) >> LV_TRIGO_SHIFT) - extra_area;
}
else if(start_quarter == 2) {
area->x1 = x + ((lv_trigo_sin(start_angle + 90) * rout) >> LV_TRIGO_SHIFT) - extra_area;
area->y2 = y + ((lv_trigo_sin(start_angle) * rin) >> LV_TRIGO_SHIFT) + extra_area;
area->y1 = y + ((lv_trigo_sin(end_angle) * rout) >> LV_TRIGO_SHIFT) - extra_area;
area->x2 = x + ((lv_trigo_sin(end_angle + 90) * rin) >> LV_TRIGO_SHIFT) + extra_area;
}
else if(start_quarter == 3) {
area->x1 = x + ((lv_trigo_sin(start_angle + 90) * rin) >> LV_TRIGO_SHIFT) - extra_area;
area->y1 = y + ((lv_trigo_sin(start_angle) * rout) >> LV_TRIGO_SHIFT) - extra_area;
area->x2 = x + ((lv_trigo_sin(end_angle + 90) * rout) >> LV_TRIGO_SHIFT) + extra_area;
area->y2 = y + ((lv_trigo_sin(end_angle) * rin) >> LV_TRIGO_SHIFT) + extra_area;
}
}
else if(start_quarter == 0 && end_quarter == 1) {
area->x1 = x + ((lv_trigo_sin(end_angle + 90) * rout) >> LV_TRIGO_SHIFT) - extra_area;
area->y1 = y + ((LV_MIN(lv_trigo_sin(end_angle),
lv_trigo_sin(start_angle)) * rin) >> LV_TRIGO_SHIFT) - extra_area;
area->x2 = x + ((lv_trigo_sin(start_angle + 90) * rout) >> LV_TRIGO_SHIFT) + extra_area;
area->y2 = y + rout + extra_area;
}
else if(start_quarter == 1 && end_quarter == 2) {
area->x1 = x - rout - extra_area;
area->y1 = y + ((lv_trigo_sin(end_angle) * rout) >> LV_TRIGO_SHIFT) - extra_area;
area->x2 = x + ((LV_MAX(lv_trigo_sin(start_angle + 90),
lv_trigo_sin(end_angle + 90)) * rin) >> LV_TRIGO_SHIFT) + extra_area;
area->y2 = y + ((lv_trigo_sin(start_angle) * rout) >> LV_TRIGO_SHIFT) + extra_area;
}
else if(start_quarter == 2 && end_quarter == 3) {
area->x1 = x + ((lv_trigo_sin(start_angle + 90) * rout) >> LV_TRIGO_SHIFT) - extra_area;
area->y1 = y - rout - extra_area;
area->x2 = x + ((lv_trigo_sin(end_angle + 90) * rout) >> LV_TRIGO_SHIFT) + extra_area;
area->y2 = y + (LV_MAX(lv_trigo_sin(end_angle) * rin,
lv_trigo_sin(start_angle) * rin) >> LV_TRIGO_SHIFT) + extra_area;
}
else if(start_quarter == 3 && end_quarter == 0) {
area->x1 = x + ((LV_MIN(lv_trigo_sin(end_angle + 90),
lv_trigo_sin(start_angle + 90)) * rin) >> LV_TRIGO_SHIFT) - extra_area;
area->y1 = y + ((lv_trigo_sin(start_angle) * rout) >> LV_TRIGO_SHIFT) - extra_area;
area->x2 = x + rout + extra_area;
area->y2 = y + ((lv_trigo_sin(end_angle) * rout) >> LV_TRIGO_SHIFT) + extra_area;
}
else {
area->x1 = x - rout;
area->y1 = y - rout;
area->x2 = x + rout;
area->y2 = y + rout;
}
}
/**********************
* STATIC FUNCTIONS
**********************/
#if LV_DRAW_COMPLEX
static void draw_quarter_0(quarter_draw_dsc_t * q)
{
lv_area_t quarter_area;
if(q->start_quarter == 0 && q->end_quarter == 0 && q->start_angle < q->end_angle) {
/*Small arc here*/
quarter_area.y1 = q->center_y + ((lv_trigo_sin(q->start_angle) * (q->radius - q->width)) >> LV_TRIGO_SHIFT);
quarter_area.x2 = q->center_x + ((lv_trigo_sin(q->start_angle + 90) * (q->radius)) >> LV_TRIGO_SHIFT);
quarter_area.y2 = q->center_y + ((lv_trigo_sin(q->end_angle) * q->radius) >> LV_TRIGO_SHIFT);
quarter_area.x1 = q->center_x + ((lv_trigo_sin(q->end_angle + 90) * (q->radius - q->width)) >> LV_TRIGO_SHIFT);
bool ok = _lv_area_intersect(&quarter_area, &quarter_area, q->clip_area);
if(ok) lv_draw_rect(q->draw_area, &quarter_area, q->draw_dsc);
}
else if(q->start_quarter == 0 || q->end_quarter == 0) {
/*Start and/or end arcs here*/
if(q->start_quarter == 0) {
quarter_area.x1 = q->center_x;
quarter_area.y2 = q->center_y + q->radius;
quarter_area.y1 = q->center_y + ((lv_trigo_sin(q->start_angle) * (q->radius - q->width)) >> LV_TRIGO_SHIFT);
quarter_area.x2 = q->center_x + ((lv_trigo_sin(q->start_angle + 90) * (q->radius)) >> LV_TRIGO_SHIFT);
bool ok = _lv_area_intersect(&quarter_area, &quarter_area, q->clip_area);
if(ok) lv_draw_rect(q->draw_area, &quarter_area, q->draw_dsc);
}
if(q->end_quarter == 0) {
quarter_area.x2 = q->center_x + q->radius;
quarter_area.y1 = q->center_y;
quarter_area.y2 = q->center_y + ((lv_trigo_sin(q->end_angle) * q->radius) >> LV_TRIGO_SHIFT);
quarter_area.x1 = q->center_x + ((lv_trigo_sin(q->end_angle + 90) * (q->radius - q->width)) >> LV_TRIGO_SHIFT);
bool ok = _lv_area_intersect(&quarter_area, &quarter_area, q->clip_area);
if(ok) lv_draw_rect(q->draw_area, &quarter_area, q->draw_dsc);
}
}
else if((q->start_quarter == q->end_quarter && q->start_quarter != 0 && q->end_angle < q->start_angle) ||
(q->start_quarter == 2 && q->end_quarter == 1) ||
(q->start_quarter == 3 && q->end_quarter == 2) ||
(q->start_quarter == 3 && q->end_quarter == 1)) {
/*Arc crosses here*/
quarter_area.x1 = q->center_x;
quarter_area.y1 = q->center_y;
quarter_area.x2 = q->center_x + q->radius;
quarter_area.y2 = q->center_y + q->radius;
bool ok = _lv_area_intersect(&quarter_area, &quarter_area, q->clip_area);
if(ok) lv_draw_rect(q->draw_area, &quarter_area, q->draw_dsc);
}
}
static void draw_quarter_1(quarter_draw_dsc_t * q)
{
lv_area_t quarter_area;
if(q->start_quarter == 1 && q->end_quarter == 1 && q->start_angle < q->end_angle) {
/*Small arc here*/
quarter_area.y2 = q->center_y + ((lv_trigo_sin(q->start_angle) * (q->radius)) >> LV_TRIGO_SHIFT);
quarter_area.x2 = q->center_x + ((lv_trigo_sin(q->start_angle + 90) * (q->radius - q->width)) >> LV_TRIGO_SHIFT);
quarter_area.y1 = q->center_y + ((lv_trigo_sin(q->end_angle) * (q->radius - q->width)) >> LV_TRIGO_SHIFT);
quarter_area.x1 = q->center_x + ((lv_trigo_sin(q->end_angle + 90) * (q->radius)) >> LV_TRIGO_SHIFT);
bool ok = _lv_area_intersect(&quarter_area, &quarter_area, q->clip_area);
if(ok) lv_draw_rect(q->draw_area, &quarter_area, q->draw_dsc);
}
else if(q->start_quarter == 1 || q->end_quarter == 1) {
/*Start and/or end arcs here*/
if(q->start_quarter == 1) {
quarter_area.x1 = q->center_x - q->radius;
quarter_area.y1 = q->center_y;
quarter_area.y2 = q->center_y + ((lv_trigo_sin(q->start_angle) * (q->radius)) >> LV_TRIGO_SHIFT);
quarter_area.x2 = q->center_x + ((lv_trigo_sin(q->start_angle + 90) * (q->radius - q->width)) >> LV_TRIGO_SHIFT);
bool ok = _lv_area_intersect(&quarter_area, &quarter_area, q->clip_area);
if(ok) lv_draw_rect(q->draw_area, &quarter_area, q->draw_dsc);
}
if(q->end_quarter == 1) {
quarter_area.x2 = q->center_x - 1;
quarter_area.y2 = q->center_y + q->radius;
quarter_area.y1 = q->center_y + ((lv_trigo_sin(q->end_angle) * (q->radius - q->width)) >> LV_TRIGO_SHIFT);
quarter_area.x1 = q->center_x + ((lv_trigo_sin(q->end_angle + 90) * (q->radius)) >> LV_TRIGO_SHIFT);
bool ok = _lv_area_intersect(&quarter_area, &quarter_area, q->clip_area);
if(ok) lv_draw_rect(q->draw_area, &quarter_area, q->draw_dsc);
}
}
else if((q->start_quarter == q->end_quarter && q->start_quarter != 1 && q->end_angle < q->start_angle) ||
(q->start_quarter == 0 && q->end_quarter == 2) ||
(q->start_quarter == 0 && q->end_quarter == 3) ||
(q->start_quarter == 3 && q->end_quarter == 2)) {
/*Arc crosses here*/
quarter_area.x1 = q->center_x - q->radius;
quarter_area.y1 = q->center_y;
quarter_area.x2 = q->center_x - 1;
quarter_area.y2 = q->center_y + q->radius;
bool ok = _lv_area_intersect(&quarter_area, &quarter_area, q->clip_area);
if(ok) lv_draw_rect(q->draw_area, &quarter_area, q->draw_dsc);
}
}
static void draw_quarter_2(quarter_draw_dsc_t * q)
{
lv_area_t quarter_area;
if(q->start_quarter == 2 && q->end_quarter == 2 && q->start_angle < q->end_angle) {
/*Small arc here*/
quarter_area.x1 = q->center_x + ((lv_trigo_sin(q->start_angle + 90) * (q->radius)) >> LV_TRIGO_SHIFT);
quarter_area.y2 = q->center_y + ((lv_trigo_sin(q->start_angle) * (q->radius - q->width)) >> LV_TRIGO_SHIFT);
quarter_area.y1 = q->center_y + ((lv_trigo_sin(q->end_angle) * q->radius) >> LV_TRIGO_SHIFT);
quarter_area.x2 = q->center_x + ((lv_trigo_sin(q->end_angle + 90) * (q->radius - q->width)) >> LV_TRIGO_SHIFT);
bool ok = _lv_area_intersect(&quarter_area, &quarter_area, q->clip_area);
if(ok) lv_draw_rect(q->draw_area, &quarter_area, q->draw_dsc);
}
else if(q->start_quarter == 2 || q->end_quarter == 2) {
/*Start and/or end arcs here*/
if(q->start_quarter == 2) {
quarter_area.x2 = q->center_x - 1;
quarter_area.y1 = q->center_y - q->radius;
quarter_area.x1 = q->center_x + ((lv_trigo_sin(q->start_angle + 90) * (q->radius)) >> LV_TRIGO_SHIFT);
quarter_area.y2 = q->center_y + ((lv_trigo_sin(q->start_angle) * (q->radius - q->width)) >> LV_TRIGO_SHIFT);
bool ok = _lv_area_intersect(&quarter_area, &quarter_area, q->clip_area);
if(ok) lv_draw_rect(q->draw_area, &quarter_area, q->draw_dsc);
}
if(q->end_quarter == 2) {
quarter_area.x1 = q->center_x - q->radius;
quarter_area.y2 = q->center_y - 1;
quarter_area.x2 = q->center_x + ((lv_trigo_sin(q->end_angle + 90) * (q->radius - q->width)) >> LV_TRIGO_SHIFT);
quarter_area.y1 = q->center_y + ((lv_trigo_sin(q->end_angle) * (q->radius)) >> LV_TRIGO_SHIFT);
bool ok = _lv_area_intersect(&quarter_area, &quarter_area, q->clip_area);
if(ok) lv_draw_rect(q->draw_area, &quarter_area, q->draw_dsc);
}
}
else if((q->start_quarter == q->end_quarter && q->start_quarter != 2 && q->end_angle < q->start_angle) ||
(q->start_quarter == 0 && q->end_quarter == 3) ||
(q->start_quarter == 1 && q->end_quarter == 3) ||
(q->start_quarter == 1 && q->end_quarter == 0)) {
/*Arc crosses here*/
quarter_area.x1 = q->center_x - q->radius;
quarter_area.y1 = q->center_y - q->radius;
quarter_area.x2 = q->center_x - 1;
quarter_area.y2 = q->center_y - 1;
bool ok = _lv_area_intersect(&quarter_area, &quarter_area, q->clip_area);
if(ok) lv_draw_rect(q->draw_area, &quarter_area, q->draw_dsc);
}
}
static void draw_quarter_3(quarter_draw_dsc_t * q)
{
lv_area_t quarter_area;
if(q->start_quarter == 3 && q->end_quarter == 3 && q->start_angle < q->end_angle) {
/*Small arc here*/
quarter_area.x1 = q->center_x + ((lv_trigo_sin(q->start_angle + 90) * (q->radius - q->width)) >> LV_TRIGO_SHIFT);
quarter_area.y1 = q->center_y + ((lv_trigo_sin(q->start_angle) * (q->radius)) >> LV_TRIGO_SHIFT);
quarter_area.x2 = q->center_x + ((lv_trigo_sin(q->end_angle + 90) * (q->radius)) >> LV_TRIGO_SHIFT);
quarter_area.y2 = q->center_y + ((lv_trigo_sin(q->end_angle) * (q->radius - q->width)) >> LV_TRIGO_SHIFT);
bool ok = _lv_area_intersect(&quarter_area, &quarter_area, q->clip_area);
if(ok) lv_draw_rect(q->draw_area, &quarter_area, q->draw_dsc);
}
else if(q->start_quarter == 3 || q->end_quarter == 3) {
/*Start and/or end arcs here*/
if(q->start_quarter == 3) {
quarter_area.x2 = q->center_x + q->radius;
quarter_area.y2 = q->center_y - 1;
quarter_area.x1 = q->center_x + ((lv_trigo_sin(q->start_angle + 90) * (q->radius - q->width)) >> LV_TRIGO_SHIFT);
quarter_area.y1 = q->center_y + ((lv_trigo_sin(q->start_angle) * (q->radius)) >> LV_TRIGO_SHIFT);
bool ok = _lv_area_intersect(&quarter_area, &quarter_area, q->clip_area);
if(ok) lv_draw_rect(q->draw_area, &quarter_area, q->draw_dsc);
}
if(q->end_quarter == 3) {
quarter_area.x1 = q->center_x;
quarter_area.y1 = q->center_y - q->radius;
quarter_area.x2 = q->center_x + ((lv_trigo_sin(q->end_angle + 90) * (q->radius)) >> LV_TRIGO_SHIFT);
quarter_area.y2 = q->center_y + ((lv_trigo_sin(q->end_angle) * (q->radius - q->width)) >> LV_TRIGO_SHIFT);
bool ok = _lv_area_intersect(&quarter_area, &quarter_area, q->clip_area);
if(ok) lv_draw_rect(q->draw_area, &quarter_area, q->draw_dsc);
}
}
else if((q->start_quarter == q->end_quarter && q->start_quarter != 3 && q->end_angle < q->start_angle) ||
(q->start_quarter == 2 && q->end_quarter == 0) ||
(q->start_quarter == 1 && q->end_quarter == 0) ||
(q->start_quarter == 2 && q->end_quarter == 1)) {
/*Arc crosses here*/
quarter_area.x1 = q->center_x;
quarter_area.y1 = q->center_y - q->radius;
quarter_area.x2 = q->center_x + q->radius;
quarter_area.y2 = q->center_y - 1;
bool ok = _lv_area_intersect(&quarter_area, &quarter_area, q->clip_area);
if(ok) lv_draw_rect(q->draw_area, &quarter_area, q->draw_dsc);
}
}
static void get_rounded_area(int16_t angle, lv_coord_t radius, uint8_t thickness, lv_area_t * res_area)
{
const uint8_t ps = 8;
const uint8_t pa = 127;
int32_t thick_half = thickness / 2;
uint8_t thick_corr = (thickness & 0x01) ? 0 : 1;
int32_t cir_x;
int32_t cir_y;
cir_x = ((radius - thick_half) * lv_trigo_sin(90 - angle)) >> (LV_TRIGO_SHIFT - ps);
cir_y = ((radius - thick_half) * lv_trigo_sin(angle)) >> (LV_TRIGO_SHIFT - ps);
/*Actually the center of the pixel need to be calculated so apply 1/2 px offset*/
if(cir_x > 0) {
cir_x = (cir_x - pa) >> ps;
res_area->x1 = cir_x - thick_half + thick_corr;
res_area->x2 = cir_x + thick_half;
}
else {
cir_x = (cir_x + pa) >> ps;
res_area->x1 = cir_x - thick_half;
res_area->x2 = cir_x + thick_half - thick_corr;
}
if(cir_y > 0) {
cir_y = (cir_y - pa) >> ps;
res_area->y1 = cir_y - thick_half + thick_corr;
res_area->y2 = cir_y + thick_half;
}
else {
cir_y = (cir_y + pa) >> ps;
res_area->y1 = cir_y - thick_half;
res_area->y2 = cir_y + thick_half - thick_corr;
}
}
#endif /*LV_DRAW_COMPLEX*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/draw/lv_draw_arc.c | C | apache-2.0 | 23,801 |
/**
* @file lv_draw_arc.h
*
*/
#ifndef LV_DRAW_ARC_H
#define LV_DRAW_ARC_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "lv_draw_line.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
typedef struct {
lv_color_t color;
lv_coord_t width;
const void * img_src;
lv_opa_t opa;
lv_blend_mode_t blend_mode : 2;
uint8_t rounded : 1;
} lv_draw_arc_dsc_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
LV_ATTRIBUTE_FAST_MEM void lv_draw_arc_dsc_init(lv_draw_arc_dsc_t * dsc);
/**
* Draw an arc. (Can draw pie too with great thickness.)
* @param center_x the x coordinate of the center of the arc
* @param center_y the y coordinate of the center of the arc
* @param radius the radius of the arc
* @param mask the arc will be drawn only in this mask
* @param start_angle the start angle of the arc (0 deg on the bottom, 90 deg on the right)
* @param end_angle the end angle of the arc
* @param clip_area the arc will be drawn only in this area
* @param dsc pointer to an initialized `lv_draw_line_dsc_t` variable
*/
void lv_draw_arc(lv_coord_t center_x, lv_coord_t center_y, uint16_t radius, uint16_t start_angle, uint16_t end_angle,
const lv_area_t * clip_area, const lv_draw_arc_dsc_t * dsc);
/**
* Get an area the should be invalidated when the arcs angle changed between start_angle and end_ange
* @param x the x coordinate of the center of the arc
* @param y the y coordinate of the center of the arc
* @param radius the radius of the arc
* @param start_angle the start angle of the arc (0 deg on the bottom, 90 deg on the right)
* @param end_angle the end angle of the arc
* @param w width of the arc
* @param rounded true: the arc is rounded
* @param area store the area to invalidate here
*/
void lv_draw_arc_get_area(lv_coord_t x, lv_coord_t y, uint16_t radius, uint16_t start_angle, uint16_t end_angle,
lv_coord_t w, bool rounded, lv_area_t * area);
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_DRAW_ARC*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/draw/lv_draw_arc.h | C | apache-2.0 | 2,367 |
/**
* @file lv_draw_blend.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_draw_blend.h"
#include "lv_img_decoder.h"
#include "../misc/lv_math.h"
#include "../hal/lv_hal_disp.h"
#include "../core/lv_refr.h"
#if LV_USE_GPU_NXP_PXP
#include "../gpu/lv_gpu_nxp_pxp.h"
#elif LV_USE_GPU_NXP_VG_LITE
#include "../gpu/lv_gpu_nxp_vglite.h"
#elif LV_USE_GPU_STM32_DMA2D
#include "../gpu/lv_gpu_stm32_dma2d.h"
#endif
/*********************
* DEFINES
*********************/
#define GPU_SIZE_LIMIT 240
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
#if LV_USE_EXTERNAL_RENDERER == 0
static void fill_set_px(const lv_area_t * disp_area, lv_color_t * disp_buf, const lv_area_t * draw_area,
lv_color_t color, lv_opa_t opa,
const lv_opa_t * mask, lv_draw_mask_res_t mask_res);
LV_ATTRIBUTE_FAST_MEM static void fill_normal(const lv_area_t * disp_area, lv_color_t * disp_buf,
const lv_area_t * draw_area,
lv_color_t color, lv_opa_t opa,
const lv_opa_t * mask, lv_draw_mask_res_t mask_res);
#if LV_DRAW_COMPLEX
static void fill_blended(const lv_area_t * disp_area, lv_color_t * disp_buf, const lv_area_t * draw_area,
lv_color_t color, lv_opa_t opa,
const lv_opa_t * mask, lv_draw_mask_res_t mask_res, lv_blend_mode_t mode);
#endif
static void map_set_px(const lv_area_t * disp_area, lv_color_t * disp_buf, const lv_area_t * draw_area,
const lv_area_t * map_area, const lv_color_t * map_buf, lv_opa_t opa,
const lv_opa_t * mask, lv_draw_mask_res_t mask_res);
LV_ATTRIBUTE_FAST_MEM static void map_normal(const lv_area_t * disp_area, lv_color_t * disp_buf,
const lv_area_t * draw_area,
const lv_area_t * map_area, const lv_color_t * map_buf, lv_opa_t opa,
const lv_opa_t * mask, lv_draw_mask_res_t mask_res);
#if LV_DRAW_COMPLEX
static void map_blended(const lv_area_t * disp_area, lv_color_t * disp_buf, const lv_area_t * draw_area,
const lv_area_t * map_area, const lv_color_t * map_buf, lv_opa_t opa,
const lv_opa_t * mask, lv_draw_mask_res_t mask_res, lv_blend_mode_t mode);
static inline lv_color_t color_blend_true_color_additive(lv_color_t fg, lv_color_t bg, lv_opa_t opa);
static inline lv_color_t color_blend_true_color_subtractive(lv_color_t fg, lv_color_t bg, lv_opa_t opa);
static inline lv_color_t color_blend_true_color_multiply(lv_color_t fg, lv_color_t bg, lv_opa_t opa);
#endif
#endif //LV_USE_GPU_SDL_RENDER
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
#if LV_COLOR_SCREEN_TRANSP == 0
#define FILL_NORMAL_MASK_PX(color) \
if(*mask == LV_OPA_COVER) *disp_buf_first = color; \
else *disp_buf_first = lv_color_mix(color, *disp_buf_first, *mask); \
mask++; \
disp_buf_first++;
#else
#define FILL_NORMAL_MASK_PX(color) \
if(*mask == LV_OPA_COVER) *disp_buf_first = color; \
else if(disp->driver->screen_transp) lv_color_mix_with_alpha(*disp_buf_first, disp_buf_first->ch.alpha, color, *mask, disp_buf_first, &disp_buf_first->ch.alpha); \
else *disp_buf_first = lv_color_mix(color, *disp_buf_first, *mask); \
mask++; \
disp_buf_first++;
#endif
#define MAP_NORMAL_MASK_PX(x) \
if(*mask_tmp_x) { \
if(*mask_tmp_x == LV_OPA_COVER) disp_buf_first[x] = map_buf_first[x]; \
else disp_buf_first[x] = lv_color_mix(map_buf_first[x], disp_buf_first[x], *mask_tmp_x); \
} \
mask_tmp_x++;
#define MAP_NORMAL_MASK_PX_SCR_TRANSP(x) \
if(*mask_tmp_x) { \
if(*mask_tmp_x == LV_OPA_COVER) disp_buf_first[x] = map_buf_first[x]; \
else if(disp->driver->screen_transp) lv_color_mix_with_alpha(disp_buf_first[x], disp_buf_first[x].ch.alpha, \
map_buf_first[x], *mask_tmp_x, &disp_buf_first[x], &disp_buf_first[x].ch.alpha); \
else disp_buf_first[x] = lv_color_mix(map_buf_first[x], disp_buf_first[x], *mask_tmp_x); \
} \
mask_tmp_x++;
/**********************
* GLOBAL FUNCTIONS
**********************/
#if LV_USE_EXTERNAL_RENDERER == 0
/**
* Fill and area in the display buffer.
* @param clip_area clip the fill to this area (absolute coordinates)
* @param fill_area fill this area (absolute coordinates) (should be clipped)
* @param color fill color
* @param mask a mask to apply on the fill (uint8_t array with 0x00..0xff values).
* Relative to fill area but its width is truncated to clip area.
* @param mask_res LV_MASK_RES_COVER: the mask has only 0xff values (no mask),
* LV_MASK_RES_TRANSP: the mask has only 0x00 values (full transparent),
* LV_MASK_RES_CHANGED: the mask has mixed values
* @param opa overall opacity in 0x00..0xff range
* @param mode blend mode from `lv_blend_mode_t`
*/
LV_ATTRIBUTE_FAST_MEM void _lv_blend_fill(const lv_area_t * clip_area, const lv_area_t * fill_area,
lv_color_t color, lv_opa_t * mask, lv_draw_mask_res_t mask_res, lv_opa_t opa,
lv_blend_mode_t mode)
{
/*Do not draw transparent things*/
if(opa < LV_OPA_MIN) return;
if(mask_res == LV_DRAW_MASK_RES_TRANSP) return;
lv_disp_t * disp = _lv_refr_get_disp_refreshing();
lv_disp_draw_buf_t * draw_buf = lv_disp_get_draw_buf(disp);
const lv_area_t * disp_area = &draw_buf->area;
lv_color_t * disp_buf = draw_buf->buf_act;
if(disp->driver->gpu_wait_cb) disp->driver->gpu_wait_cb(disp->driver);
/*Get clipped fill area which is the real draw area.
*It is always the same or inside `fill_area`*/
lv_area_t draw_area;
if(!_lv_area_intersect(&draw_area, clip_area, fill_area)) return;
/*Now `draw_area` has absolute coordinates.
*Make it relative to `disp_area` to simplify the drawing to `disp_buf`*/
lv_area_move(&draw_area, -disp_area->x1, -disp_area->y1);
/*Round the values in the mask if anti-aliasing is disabled*/
if(mask && disp->driver->antialiasing == 0 && mask) {
int32_t mask_w = lv_area_get_width(&draw_area);
int32_t i;
for(i = 0; i < mask_w; i++) mask[i] = mask[i] > 128 ? LV_OPA_COVER : LV_OPA_TRANSP;
}
if(disp->driver->set_px_cb) {
fill_set_px(disp_area, disp_buf, &draw_area, color, opa, mask, mask_res);
}
else if(mode == LV_BLEND_MODE_NORMAL) {
fill_normal(disp_area, disp_buf, &draw_area, color, opa, mask, mask_res);
}
#if LV_DRAW_COMPLEX
else {
fill_blended(disp_area, disp_buf, &draw_area, color, opa, mask, mask_res, mode);
}
#endif
}
/**
* Copy a map (image) to a display buffer.
* @param clip_area clip the map to this area (absolute coordinates)
* @param map_area area of the image (absolute coordinates)
* @param map_buf a pixels of the map (image)
* @param mask a mask to apply on every pixel (uint8_t array with 0x00..0xff values).
* Relative to map area but its width is truncated to clip area.
* @param mask_res LV_MASK_RES_COVER: the mask has only 0xff values (no mask),
* LV_MASK_RES_TRANSP: the mask has only 0x00 values (full transparent),
* LV_MASK_RES_CHANGED: the mask has mixed values
* @param opa overall opacity in 0x00..0xff range
* @param mode blend mode from `lv_blend_mode_t`
*/
LV_ATTRIBUTE_FAST_MEM void _lv_blend_map(const lv_area_t * clip_area, const lv_area_t * map_area,
const lv_color_t * map_buf,
lv_opa_t * mask, lv_draw_mask_res_t mask_res,
lv_opa_t opa, lv_blend_mode_t mode)
{
/*Do not draw transparent things*/
if(opa < LV_OPA_MIN) return;
if(mask_res == LV_DRAW_MASK_RES_TRANSP) return;
/*Get clipped fill area which is the real draw area.
*It is always the same or inside `fill_area`*/
lv_area_t draw_area;
bool is_common;
is_common = _lv_area_intersect(&draw_area, clip_area, map_area);
if(!is_common) return;
lv_disp_t * disp = _lv_refr_get_disp_refreshing();
lv_disp_draw_buf_t * draw_buf = lv_disp_get_draw_buf(disp);
const lv_area_t * disp_area = &draw_buf->area;
lv_color_t * disp_buf = draw_buf->buf_act;
if(disp->driver->gpu_wait_cb) disp->driver->gpu_wait_cb(disp->driver);
/*Now `draw_area` has absolute coordinates.
*Make it relative to `disp_area` to simplify draw to `disp_buf`*/
draw_area.x1 -= disp_area->x1;
draw_area.y1 -= disp_area->y1;
draw_area.x2 -= disp_area->x1;
draw_area.y2 -= disp_area->y1;
/*Round the values in the mask if anti-aliasing is disabled*/
if(mask && disp->driver->antialiasing == 0) {
int32_t mask_w = lv_area_get_width(&draw_area);
int32_t i;
for(i = 0; i < mask_w; i++) mask[i] = mask[i] > 128 ? LV_OPA_COVER : LV_OPA_TRANSP;
}
if(disp->driver->set_px_cb) {
map_set_px(disp_area, disp_buf, &draw_area, map_area, map_buf, opa, mask, mask_res);
}
else if(mode == LV_BLEND_MODE_NORMAL) {
map_normal(disp_area, disp_buf, &draw_area, map_area, map_buf, opa, mask, mask_res);
}
#if LV_DRAW_COMPLEX
else {
map_blended(disp_area, disp_buf, &draw_area, map_area, map_buf, opa, mask, mask_res, mode);
}
#endif
}
/**********************
* STATIC FUNCTIONS
**********************/
static void fill_set_px(const lv_area_t * disp_area, lv_color_t * disp_buf, const lv_area_t * draw_area,
lv_color_t color, lv_opa_t opa,
const lv_opa_t * mask, lv_draw_mask_res_t mask_res)
{
lv_disp_t * disp = _lv_refr_get_disp_refreshing();
/*Get the width of the `disp_area` it will be used to go to the next line*/
int32_t disp_w = lv_area_get_width(disp_area);
int32_t x;
int32_t y;
if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) {
for(y = draw_area->y1; y <= draw_area->y2; y++) {
for(x = draw_area->x1; x <= draw_area->x2; x++) {
disp->driver->set_px_cb(disp->driver, (void *)disp_buf, disp_w, x, y, color, opa);
}
}
}
else {
/*The mask is relative to the clipped area.
*In the cycles below mask will be indexed from `draw_area.x1`
*but it corresponds to zero index. So prepare `mask_tmp` accordingly.*/
const lv_opa_t * mask_tmp = mask - draw_area->x1;
/*Get the width of the `draw_area` it will be used to go to the next line of the mask*/
int32_t draw_area_w = lv_area_get_width(draw_area);
for(y = draw_area->y1; y <= draw_area->y2; y++) {
for(x = draw_area->x1; x <= draw_area->x2; x++) {
if(mask_tmp[x]) {
disp->driver->set_px_cb(disp->driver, (void *)disp_buf, disp_w, x, y, color,
(uint32_t)((uint32_t)opa * mask_tmp[x]) >> 8);
}
}
mask_tmp += draw_area_w;
}
}
}
#if LV_USE_EXTERNAL_RENDERER == 0
/**
* Fill an area with a color
* @param disp_area the current display area (destination area)
* @param disp_buf destination buffer
* @param draw_area fill this area (relative to `disp_area`)
* @param color fill color
* @param opa overall opacity in 0x00..0xff range
* @param mask a mask to apply on every pixel (uint8_t array with 0x00..0xff values).
* It fits into draw_area.
* @param mask_res LV_MASK_RES_COVER: the mask has only 0xff values (no mask),
* LV_MASK_RES_TRANSP: the mask has only 0x00 values (full transparent),
* LV_MASK_RES_CHANGED: the mask has mixed values
*/
LV_ATTRIBUTE_FAST_MEM static void fill_normal(const lv_area_t * disp_area, lv_color_t * disp_buf,
const lv_area_t * draw_area,
lv_color_t color, lv_opa_t opa,
const lv_opa_t * mask, lv_draw_mask_res_t mask_res)
{
lv_disp_t * disp = _lv_refr_get_disp_refreshing();
/*Get the width of the `disp_area` it will be used to go to the next line*/
int32_t disp_w = lv_area_get_width(disp_area);
int32_t draw_area_w = lv_area_get_width(draw_area);
int32_t draw_area_h = lv_area_get_height(draw_area);
/*Create a temp. disp_buf which always point to the first pixel of the destination area*/
lv_color_t * disp_buf_first = disp_buf + disp_w * draw_area->y1 + draw_area->x1;
int32_t x;
int32_t y;
/*Simple fill (maybe with opacity), no masking*/
if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) {
if(opa > LV_OPA_MAX) {
#if LV_USE_GPU_NXP_PXP
if(lv_area_get_size(draw_area) >= LV_GPU_NXP_PXP_FILL_SIZE_LIMIT) {
lv_gpu_nxp_pxp_fill(disp_buf, disp_w, draw_area, color, opa);
return;
}
#elif LV_USE_GPU_NXP_VG_LITE
if(lv_area_get_size(draw_area) >= LV_GPU_NXP_VG_LITE_FILL_SIZE_LIMIT) {
if(lv_gpu_nxp_vglite_fill(disp_buf, disp_w, lv_area_get_height(disp_area), draw_area, color, opa) == LV_RES_OK) {
return;
}
}
#elif LV_USE_GPU_STM32_DMA2D
if(lv_area_get_size(draw_area) >= 240) {
lv_gpu_stm32_dma2d_fill(disp_buf_first, disp_w, color, draw_area_w, draw_area_h);
return;
}
#endif
if(disp->driver->gpu_fill_cb && lv_area_get_size(draw_area) > GPU_SIZE_LIMIT) {
disp->driver->gpu_fill_cb(disp->driver, disp_buf, disp_w, draw_area, color);
return;
}
/*Software rendering*/
for(y = 0; y < draw_area_h; y++) {
lv_color_fill(disp_buf_first, color, draw_area_w);
disp_buf_first += disp_w;
}
}
/*No mask with opacity*/
else {
#if LV_USE_GPU_NXP_PXP
if(lv_area_get_size(draw_area) >= LV_GPU_NXP_PXP_FILL_OPA_SIZE_LIMIT) {
lv_gpu_nxp_pxp_fill(disp_buf, disp_w, draw_area, color, opa);
return;
}
#elif LV_USE_GPU_NXP_VG_LITE
if(lv_area_get_size(draw_area) >= LV_GPU_NXP_VG_LITE_FILL_OPA_SIZE_LIMIT) {
if(lv_gpu_nxp_vglite_fill(disp_buf, disp_w, lv_area_get_height(disp_area), draw_area, color, opa) == LV_RES_OK) {
return;
}
/*Fall down to SW render in case of error*/
}
#endif
lv_color_t last_dest_color = lv_color_black();
lv_color_t last_res_color = lv_color_mix(color, last_dest_color, opa);
uint16_t color_premult[3];
lv_color_premult(color, opa, color_premult);
lv_opa_t opa_inv = 255 - opa;
for(y = 0; y < draw_area_h; y++) {
for(x = 0; x < draw_area_w; x++) {
if(last_dest_color.full != disp_buf_first[x].full) {
last_dest_color = disp_buf_first[x];
#if LV_COLOR_SCREEN_TRANSP
if(disp->driver->screen_transp) {
lv_color_mix_with_alpha(disp_buf_first[x], disp_buf_first[x].ch.alpha, color, opa, &last_res_color,
&last_res_color.ch.alpha);
}
else
#endif
{
last_res_color = lv_color_mix_premult(color_premult, disp_buf_first[x], opa_inv);
}
}
disp_buf_first[x] = last_res_color;
}
disp_buf_first += disp_w;
}
}
}
/*Masked*/
else {
int32_t x_end4 = draw_area_w - 4;
#if LV_COLOR_DEPTH == 16
uint32_t c32 = color.full + ((uint32_t)color.full << 16);
#endif
/*Only the mask matters*/
if(opa > LV_OPA_MAX) {
for(y = 0; y < draw_area_h; y++) {
for(x = 0; x < draw_area_w && ((lv_uintptr_t)(mask) & 0x3); x++) {
FILL_NORMAL_MASK_PX(color)
}
for(; x <= x_end4; x += 4) {
uint32_t mask32 = *((uint32_t *)mask);
if(mask32 == 0xFFFFFFFF) {
#if LV_COLOR_DEPTH == 16
if((lv_uintptr_t)disp_buf_first & 0x3) {
*(disp_buf_first + 0) = color;
uint32_t * d = (uint32_t *)(disp_buf_first + 1);
*d = c32;
*(disp_buf_first + 3) = color;
}
else {
uint32_t * d = (uint32_t *)disp_buf_first;
*d = c32;
*(d + 1) = c32;
}
#else
disp_buf_first[0] = color;
disp_buf_first[1] = color;
disp_buf_first[2] = color;
disp_buf_first[3] = color;
#endif
disp_buf_first += 4;
mask += 4;
}
else if(mask32) {
FILL_NORMAL_MASK_PX(color)
FILL_NORMAL_MASK_PX(color)
FILL_NORMAL_MASK_PX(color)
FILL_NORMAL_MASK_PX(color)
}
else {
mask += 4;
disp_buf_first += 4;
}
}
for(; x < draw_area_w ; x++) {
FILL_NORMAL_MASK_PX(color)
}
disp_buf_first += (disp_w - draw_area_w);
}
}
/*Handle opa and mask values too*/
else {
/*Buffer the result color to avoid recalculating the same color*/
lv_color_t last_dest_color;
lv_color_t last_res_color;
lv_opa_t last_mask = LV_OPA_TRANSP;
last_dest_color.full = disp_buf_first[0].full;
last_res_color.full = disp_buf_first[0].full;
lv_opa_t opa_tmp = LV_OPA_TRANSP;
for(y = draw_area->y1; y <= draw_area->y2; y++) {
const lv_opa_t * mask_tmp_x = mask;
for(x = 0; x < draw_area_w; x++) {
if(*mask_tmp_x) {
if(*mask_tmp_x != last_mask) opa_tmp = *mask_tmp_x == LV_OPA_COVER ? opa :
(uint32_t)((uint32_t)(*mask_tmp_x) * opa) >> 8;
if(*mask_tmp_x != last_mask || last_dest_color.full != disp_buf_first[x].full) {
#if LV_COLOR_SCREEN_TRANSP
if(disp->driver->screen_transp) {
lv_color_mix_with_alpha(disp_buf_first[x], disp_buf_first[x].ch.alpha, color, opa_tmp, &last_res_color,
&last_res_color.ch.alpha);
}
else
#endif
{
if(opa_tmp == LV_OPA_COVER) last_res_color = color;
else last_res_color = lv_color_mix(color, disp_buf_first[x], opa_tmp);
}
last_mask = *mask_tmp_x;
last_dest_color.full = disp_buf_first[x].full;
}
disp_buf_first[x] = last_res_color;
}
mask_tmp_x++;
}
disp_buf_first += disp_w;
mask += draw_area_w;
}
}
}
}
#if LV_DRAW_COMPLEX
/**
* Fill an area with a color but apply blending algorithms
* @param disp_area the current display area (destination area)
* @param disp_buf destination buffer
* @param draw_area fill this area (relative to `disp_area`)
* @param color fill color
* @param opa overall opacity in 0x00..0xff range
* @param mask a mask to apply on every pixel (uint8_t array with 0x00..0xff values).
* It fits into draw_area.
* @param mask_res LV_MASK_RES_COVER: the mask has only 0xff values (no mask),
* LV_MASK_RES_TRANSP: the mask has only 0x00 values (full transparent),
* LV_MASK_RES_CHANGED: the mask has mixed values
* @param mode blend mode from `lv_blend_mode_t`
*/
static void fill_blended(const lv_area_t * disp_area, lv_color_t * disp_buf, const lv_area_t * draw_area,
lv_color_t color, lv_opa_t opa,
const lv_opa_t * mask, lv_draw_mask_res_t mask_res, lv_blend_mode_t mode)
{
/*Get the width of the `disp_area` it will be used to go to the next line*/
int32_t disp_w = lv_area_get_width(disp_area);
/*Create a temp. disp_buf which always point to current line to draw*/
lv_color_t * disp_buf_tmp = disp_buf + disp_w * draw_area->y1;
lv_color_t (*blend_fp)(lv_color_t, lv_color_t, lv_opa_t);
switch(mode) {
case LV_BLEND_MODE_ADDITIVE:
blend_fp = color_blend_true_color_additive;
break;
case LV_BLEND_MODE_SUBTRACTIVE:
blend_fp = color_blend_true_color_subtractive;
break;
case LV_BLEND_MODE_MULTIPLY:
blend_fp = color_blend_true_color_multiply;
break;
default:
LV_LOG_WARN("fill_blended: unsupported blend mode");
return;
}
int32_t x;
int32_t y;
/*Simple fill (maybe with opacity), no masking*/
if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) {
lv_color_t last_dest_color = lv_color_black();
lv_color_t last_res_color = lv_color_mix(color, last_dest_color, opa);
for(y = draw_area->y1; y <= draw_area->y2; y++) {
for(x = draw_area->x1; x <= draw_area->x2; x++) {
if(last_dest_color.full != disp_buf_tmp[x].full) {
last_dest_color = disp_buf_tmp[x];
last_res_color = blend_fp(color, disp_buf_tmp[x], opa);
}
disp_buf_tmp[x] = last_res_color;
}
disp_buf_tmp += disp_w;
}
}
/*Masked*/
else {
/*Get the width of the `draw_area` it will be used to go to the next line of the mask*/
int32_t draw_area_w = lv_area_get_width(draw_area);
/*The mask is relative to the clipped area.
*In the cycles below mask will be indexed from `draw_area.x1`
*but it corresponds to zero index. So prepare `mask_tmp` accordingly.*/
const lv_opa_t * mask_tmp = mask - draw_area->x1;
/*Buffer the result color to avoid recalculating the same color*/
lv_color_t last_dest_color;
lv_color_t last_res_color;
lv_opa_t last_mask = LV_OPA_TRANSP;
last_dest_color.full = disp_buf_tmp[0].full;
last_res_color.full = disp_buf_tmp[0].full;
for(y = draw_area->y1; y <= draw_area->y2; y++) {
for(x = draw_area->x1; x <= draw_area->x2; x++) {
if(mask_tmp[x] == 0) continue;
if(mask_tmp[x] != last_mask || last_dest_color.full != disp_buf_tmp[x].full) {
lv_opa_t opa_tmp = mask_tmp[x] >= LV_OPA_MAX ? opa : (uint32_t)((uint32_t)mask_tmp[x] * opa) >> 8;
last_res_color = blend_fp(color, disp_buf_tmp[x], opa_tmp);
last_mask = mask_tmp[x];
last_dest_color.full = disp_buf_tmp[x].full;
}
disp_buf_tmp[x] = last_res_color;
}
disp_buf_tmp += disp_w;
mask_tmp += draw_area_w;
}
}
}
#endif
#endif // LV_USE_GPU_SDL_RENDER
static void map_set_px(const lv_area_t * disp_area, lv_color_t * disp_buf, const lv_area_t * draw_area,
const lv_area_t * map_area, const lv_color_t * map_buf, lv_opa_t opa,
const lv_opa_t * mask, lv_draw_mask_res_t mask_res)
{
lv_disp_t * disp = _lv_refr_get_disp_refreshing();
/*Get the width of the `disp_area` it will be used to go to the next line*/
int32_t disp_w = lv_area_get_width(disp_area);
/*Get the width of the `draw_area` it will be used to go to the next line of the mask*/
int32_t draw_area_w = lv_area_get_width(draw_area);
/*Get the width of the `mask_area` it will be used to go to the next line*/
int32_t map_w = lv_area_get_width(map_area);
/*Create a temp. map_buf which always point to current line to draw*/
const lv_color_t * map_buf_tmp = map_buf + map_w * (draw_area->y1 - (map_area->y1 - disp_area->y1));
map_buf_tmp += (draw_area->x1 - (map_area->x1 - disp_area->x1));
map_buf_tmp -= draw_area->x1;
int32_t x;
int32_t y;
if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) {
for(y = draw_area->y1; y <= draw_area->y2; y++) {
for(x = draw_area->x1; x <= draw_area->x2; x++) {
disp->driver->set_px_cb(disp->driver, (void *)disp_buf, disp_w, x, y, map_buf_tmp[x], opa);
}
map_buf_tmp += map_w;
}
}
else {
/*The mask is relative to the clipped area.
*In the cycles below mask will be indexed from `draw_area.x1`
*but it corresponds to zero index. So prepare `mask_tmp` accordingly.*/
const lv_opa_t * mask_tmp = mask - draw_area->x1;
for(y = draw_area->y1; y <= draw_area->y2; y++) {
for(x = draw_area->x1; x <= draw_area->x2; x++) {
if(mask_tmp[x]) {
disp->driver->set_px_cb(disp->driver, (void *)disp_buf, disp_w, x, y, map_buf_tmp[x],
(uint32_t)((uint32_t)opa * mask_tmp[x]) >> 8);
}
}
mask_tmp += draw_area_w;
map_buf_tmp += map_w;
}
}
}
/**
* Copy an image to an area
* @param disp_area the current display area (destination area)
* @param disp_buf destination buffer
* @param map_area coordinates of the map (image) to copy. (absolute coordinates)
* @param map_buf the pixel of the image
* @param opa overall opacity in 0x00..0xff range
* @param mask a mask to apply on every pixel (uint8_t array with 0x00..0xff values).
* It fits into draw_area.
* @param mask_res LV_MASK_RES_COVER: the mask has only 0xff values (no mask),
* LV_MASK_RES_TRANSP: the mask has only 0x00 values (full transparent),
* LV_MASK_RES_CHANGED: the mask has mixed values
*/
LV_ATTRIBUTE_FAST_MEM static void map_normal(const lv_area_t * disp_area, lv_color_t * disp_buf,
const lv_area_t * draw_area,
const lv_area_t * map_area, const lv_color_t * map_buf, lv_opa_t opa,
const lv_opa_t * mask, lv_draw_mask_res_t mask_res)
{
/*Get the width of the `disp_area` it will be used to go to the next line*/
int32_t disp_w = lv_area_get_width(disp_area);
int32_t draw_area_w = lv_area_get_width(draw_area);
int32_t draw_area_h = lv_area_get_height(draw_area);
/*Get the width of the `mask_area` it will be used to go to the next line*/
int32_t map_w = lv_area_get_width(map_area);
/*Create a temp. disp_buf which always point to first pixel to draw*/
lv_color_t * disp_buf_first = disp_buf + disp_w * draw_area->y1 + draw_area->x1;
/*Create a temp. map_buf which always point to first pixel to draw from the map*/
const lv_color_t * map_buf_first = map_buf + map_w * (draw_area->y1 - (map_area->y1 - disp_area->y1));
map_buf_first += (draw_area->x1 - (map_area->x1 - disp_area->x1));
#if LV_COLOR_SCREEN_TRANSP
lv_disp_t * disp = _lv_refr_get_disp_refreshing();
#endif
int32_t x;
int32_t y;
/*Simple fill (maybe with opacity), no masking*/
if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) {
if(opa > LV_OPA_MAX) {
#if LV_USE_GPU_NXP_PXP
if(lv_area_get_size(draw_area) >= LV_GPU_NXP_PXP_BLIT_SIZE_LIMIT) {
lv_gpu_nxp_pxp_blit(disp_buf_first, disp_w, map_buf_first, map_w, draw_area_w, draw_area_h, opa);
return;
}
#elif (LV_USE_GPU_NXP_VG_LITE)
if(lv_area_get_size(draw_area) >= LV_GPU_NXP_VG_LITE_BLIT_SIZE_LIMIT) {
lv_gpu_nxp_vglite_blit_info_t blit;
blit.src = map_buf;
blit.src_width = draw_area_w;
blit.src_height = draw_area_h;
blit.src_stride = lv_area_get_width(map_area) * sizeof(lv_color_t);
blit.src_area.x1 = (draw_area->x1 - (map_area->x1 - disp_area->x1));
blit.src_area.y1 = (draw_area->y1 - (map_area->y1 - disp_area->y1));
blit.src_area.x2 = blit.src_area.x1 + draw_area_w;
blit.src_area.y2 = blit.src_area.y1 + draw_area_h;
blit.dst = disp_buf;
blit.dst_width = lv_area_get_width(disp_area);
blit.dst_height = lv_area_get_height(disp_area);
blit.dst_stride = lv_area_get_width(disp_area) * sizeof(lv_color_t);
blit.dst_area.x1 = draw_area->x1;
blit.dst_area.y1 = draw_area->y1;
blit.dst_area.x2 = blit.dst_area.x1 + draw_area_w;
blit.dst_area.y2 = blit.dst_area.y1 + draw_area_h;
blit.opa = opa;
if(lv_gpu_nxp_vglite_blit(&blit) == LV_RES_OK) {
return;
}
/*Fall down to SW render in case of error*/
}
#elif LV_USE_GPU_STM32_DMA2D
if(lv_area_get_size(draw_area) >= 240) {
lv_gpu_stm32_dma2d_copy(disp_buf_first, disp_w, map_buf_first, map_w, draw_area_w, draw_area_h);
return;
}
#endif
/*Software rendering*/
for(y = 0; y < draw_area_h; y++) {
lv_memcpy(disp_buf_first, map_buf_first, draw_area_w * sizeof(lv_color_t));
disp_buf_first += disp_w;
map_buf_first += map_w;
}
}
else {
#if LV_USE_GPU_NXP_PXP
if(lv_area_get_size(draw_area) >= LV_GPU_NXP_PXP_BLIT_OPA_SIZE_LIMIT) {
lv_gpu_nxp_pxp_blit(disp_buf_first, disp_w, map_buf_first, map_w, draw_area_w, draw_area_h, opa);
return;
}
#elif (LV_USE_GPU_NXP_VG_LITE)
if(lv_area_get_size(draw_area) >= LV_GPU_NXP_VG_LITE_BLIT_OPA_SIZE_LIMIT) {
lv_gpu_nxp_vglite_blit_info_t blit;
blit.src = map_buf;
blit.src_width = lv_area_get_width(map_area);
blit.src_height = lv_area_get_height(map_area);
blit.src_stride = lv_area_get_width(map_area) * sizeof(lv_color_t);
blit.src_area.x1 = (draw_area->x1 - (map_area->x1 - disp_area->x1));
blit.src_area.y1 = (draw_area->y1 - (map_area->y1 - disp_area->y1));
blit.src_area.x2 = blit.src_area.x1 + draw_area_w;
blit.src_area.y2 = blit.src_area.y1 + draw_area_h;
blit.dst = disp_buf;
blit.dst_width = lv_area_get_width(disp_area);
blit.dst_height = lv_area_get_height(disp_area);
blit.dst_stride = lv_area_get_width(disp_area) * sizeof(lv_color_t);
blit.dst_area.x1 = draw_area->x1;
blit.dst_area.y1 = draw_area->y1;
blit.dst_area.x2 = blit.dst_area.x1 + draw_area_w;
blit.dst_area.y2 = blit.dst_area.y1 + draw_area_h;
blit.opa = opa;
if(lv_gpu_nxp_vglite_blit(&blit) == LV_RES_OK) {
return;
}
/*Fall down to SW render in case of error*/
}
#elif LV_USE_GPU_STM32_DMA2D
if(lv_area_get_size(draw_area) >= 240) {
lv_gpu_stm32_dma2d_blend(disp_buf_first, disp_w, map_buf_first, opa, map_w, draw_area_w, draw_area_h);
return;
}
#endif
/*Software rendering*/
for(y = 0; y < draw_area_h; y++) {
for(x = 0; x < draw_area_w; x++) {
#if LV_COLOR_SCREEN_TRANSP
if(disp->driver->screen_transp) {
lv_color_mix_with_alpha(disp_buf_first[x], disp_buf_first[x].ch.alpha, map_buf_first[x], opa, &disp_buf_first[x],
&disp_buf_first[x].ch.alpha);
}
else
#endif
{
disp_buf_first[x] = lv_color_mix(map_buf_first[x], disp_buf_first[x], opa);
}
}
disp_buf_first += disp_w;
map_buf_first += map_w;
}
}
}
/*Masked*/
else {
/*Only the mask matters*/
if(opa > LV_OPA_MAX) {
/*Go to the first pixel of the row*/
int32_t x_end4 = draw_area_w - 4;
for(y = 0; y < draw_area_h; y++) {
const lv_opa_t * mask_tmp_x = mask;
#if 0
for(x = 0; x < draw_area_w; x++) {
MAP_NORMAL_MASK_PX(x);
}
#else
for(x = 0; x < draw_area_w && ((lv_uintptr_t)mask_tmp_x & 0x3); x++) {
#if LV_COLOR_SCREEN_TRANSP
MAP_NORMAL_MASK_PX_SCR_TRANSP(x)
#else
MAP_NORMAL_MASK_PX(x)
#endif
}
uint32_t * mask32 = (uint32_t *)mask_tmp_x;
for(; x < x_end4; x += 4) {
if(*mask32) {
if((*mask32) == 0xFFFFFFFF) {
disp_buf_first[x] = map_buf_first[x];
disp_buf_first[x + 1] = map_buf_first[x + 1];
disp_buf_first[x + 2] = map_buf_first[x + 2];
disp_buf_first[x + 3] = map_buf_first[x + 3];
}
else {
mask_tmp_x = (const lv_opa_t *)mask32;
#if LV_COLOR_SCREEN_TRANSP
MAP_NORMAL_MASK_PX_SCR_TRANSP(x)
MAP_NORMAL_MASK_PX_SCR_TRANSP(x + 1)
MAP_NORMAL_MASK_PX_SCR_TRANSP(x + 2)
MAP_NORMAL_MASK_PX_SCR_TRANSP(x + 3)
#else
MAP_NORMAL_MASK_PX(x)
MAP_NORMAL_MASK_PX(x + 1)
MAP_NORMAL_MASK_PX(x + 2)
MAP_NORMAL_MASK_PX(x + 3)
#endif
}
}
mask32++;
}
mask_tmp_x = (const lv_opa_t *)mask32;
for(; x < draw_area_w ; x++) {
#if LV_COLOR_SCREEN_TRANSP
MAP_NORMAL_MASK_PX_SCR_TRANSP(x)
#else
MAP_NORMAL_MASK_PX(x)
#endif
}
#endif
disp_buf_first += disp_w;
mask += draw_area_w;
map_buf_first += map_w;
}
}
/*Handle opa and mask values too*/
else {
for(y = 0; y < draw_area_h; y++) {
for(x = 0; x < draw_area_w; x++) {
if(mask[x]) {
lv_opa_t opa_tmp = mask[x] >= LV_OPA_MAX ? opa : ((opa * mask[x]) >> 8);
#if LV_COLOR_SCREEN_TRANSP
if(disp->driver->screen_transp) {
lv_color_mix_with_alpha(disp_buf_first[x], disp_buf_first[x].ch.alpha, map_buf_first[x], opa_tmp, &disp_buf_first[x],
&disp_buf_first[x].ch.alpha);
}
else
#endif
{
disp_buf_first[x] = lv_color_mix(map_buf_first[x], disp_buf_first[x], opa_tmp);
}
}
}
disp_buf_first += disp_w;
mask += draw_area_w;
map_buf_first += map_w;
}
}
}
}
#if LV_DRAW_COMPLEX
static void map_blended(const lv_area_t * disp_area, lv_color_t * disp_buf, const lv_area_t * draw_area,
const lv_area_t * map_area, const lv_color_t * map_buf, lv_opa_t opa,
const lv_opa_t * mask, lv_draw_mask_res_t mask_res, lv_blend_mode_t mode)
{
/*Get the width of the `disp_area` it will be used to go to the next line*/
int32_t disp_w = lv_area_get_width(disp_area);
/*Get the width of the `draw_area` it will be used to go to the next line of the mask*/
int32_t draw_area_w = lv_area_get_width(draw_area);
/*Get the width of the `mask_area` it will be used to go to the next line*/
int32_t map_w = lv_area_get_width(map_area);
/*Create a temp. disp_buf which always point to current line to draw*/
lv_color_t * disp_buf_tmp = disp_buf + disp_w * draw_area->y1;
/*Create a temp. map_buf which always point to current line to draw*/
const lv_color_t * map_buf_tmp = map_buf + map_w * (draw_area->y1 - (map_area->y1 - disp_area->y1));
lv_color_t (*blend_fp)(lv_color_t, lv_color_t, lv_opa_t);
switch(mode) {
case LV_BLEND_MODE_ADDITIVE:
blend_fp = color_blend_true_color_additive;
break;
case LV_BLEND_MODE_SUBTRACTIVE:
blend_fp = color_blend_true_color_subtractive;
break;
case LV_BLEND_MODE_MULTIPLY:
blend_fp = color_blend_true_color_multiply;
break;
default:
LV_LOG_WARN("fill_blended: unsupported blend mode");
return;
}
int32_t x;
int32_t y;
/*Simple fill (maybe with opacity), no masking*/
if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) {
/*Go to the first px of the row*/
map_buf_tmp += (draw_area->x1 - (map_area->x1 - disp_area->x1));
/*The map will be indexed from `draw_area->x1` so compensate it.*/
map_buf_tmp -= draw_area->x1;
for(y = draw_area->y1; y <= draw_area->y2; y++) {
for(x = draw_area->x1; x <= draw_area->x2; x++) {
disp_buf_tmp[x] = blend_fp(map_buf_tmp[x], disp_buf_tmp[x], opa);
}
disp_buf_tmp += disp_w;
map_buf_tmp += map_w;
}
}
/*Masked*/
else {
/*The mask is relative to the clipped area.
*In the cycles below mask will be indexed from `draw_area.x1`
*but it corresponds to zero index. So prepare `mask_tmp` accordingly.*/
const lv_opa_t * mask_tmp = mask - draw_area->x1;
map_buf_tmp -= draw_area->x1;
for(y = draw_area->y1; y <= draw_area->y2; y++) {
for(x = draw_area->x1; x <= draw_area->x2; x++) {
if(mask_tmp[x] == 0) continue;
lv_opa_t opa_tmp = mask_tmp[x] >= LV_OPA_MAX ? opa : ((opa * mask_tmp[x]) >> 8);
disp_buf_tmp[x] = blend_fp(map_buf_tmp[x], disp_buf_tmp[x], opa_tmp);
}
disp_buf_tmp += disp_w;
mask_tmp += draw_area_w;
map_buf_tmp += map_w;
}
}
}
static inline lv_color_t color_blend_true_color_additive(lv_color_t fg, lv_color_t bg, lv_opa_t opa)
{
if(opa <= LV_OPA_MIN) return bg;
uint32_t tmp;
#if LV_COLOR_DEPTH == 1
tmp = bg.full + fg.full;
fg.full = LV_MIN(tmp, 1);
#else
tmp = bg.ch.red + fg.ch.red;
#if LV_COLOR_DEPTH == 8
fg.ch.red = LV_MIN(tmp, 7);
#elif LV_COLOR_DEPTH == 16
fg.ch.red = LV_MIN(tmp, 31);
#elif LV_COLOR_DEPTH == 32
fg.ch.red = LV_MIN(tmp, 255);
#endif
#if LV_COLOR_DEPTH == 8
tmp = bg.ch.green + fg.ch.green;
fg.ch.green = LV_MIN(tmp, 7);
#elif LV_COLOR_DEPTH == 16
#if LV_COLOR_16_SWAP == 0
tmp = bg.ch.green + fg.ch.green;
fg.ch.green = LV_MIN(tmp, 63);
#else
tmp = (bg.ch.green_h << 3) + bg.ch.green_l + (fg.ch.green_h << 3) + fg.ch.green_l;
tmp = LV_MIN(tmp, 63);
fg.ch.green_h = tmp >> 3;
fg.ch.green_l = tmp & 0x7;
#endif
#elif LV_COLOR_DEPTH == 32
tmp = bg.ch.green + fg.ch.green;
fg.ch.green = LV_MIN(tmp, 255);
#endif
tmp = bg.ch.blue + fg.ch.blue;
#if LV_COLOR_DEPTH == 8
fg.ch.blue = LV_MIN(tmp, 4);
#elif LV_COLOR_DEPTH == 16
fg.ch.blue = LV_MIN(tmp, 31);
#elif LV_COLOR_DEPTH == 32
fg.ch.blue = LV_MIN(tmp, 255);
#endif
#endif
if(opa == LV_OPA_COVER) return fg;
return lv_color_mix(fg, bg, opa);
}
static inline lv_color_t color_blend_true_color_subtractive(lv_color_t fg, lv_color_t bg, lv_opa_t opa)
{
if(opa <= LV_OPA_MIN) return bg;
int32_t tmp;
tmp = bg.ch.red - fg.ch.red;
fg.ch.red = LV_MAX(tmp, 0);
#if LV_COLOR_16_SWAP == 0
tmp = bg.ch.green - fg.ch.green;
fg.ch.green = LV_MAX(tmp, 0);
#else
tmp = (bg.ch.green_h << 3) + bg.ch.green_l + (fg.ch.green_h << 3) + fg.ch.green_l;
tmp = LV_MAX(tmp, 0);
fg.ch.green_h = tmp >> 3;
fg.ch.green_l = tmp & 0x7;
#endif
tmp = bg.ch.blue - fg.ch.blue;
fg.ch.blue = LV_MAX(tmp, 0);
if(opa == LV_OPA_COVER) return fg;
return lv_color_mix(fg, bg, opa);
}
static inline lv_color_t color_blend_true_color_multiply(lv_color_t fg, lv_color_t bg, lv_opa_t opa)
{
if(opa <= LV_OPA_MIN) return bg;
#if LV_COLOR_DEPTH == 32
fg.ch.red = (fg.ch.red * bg.ch.red) >> 8;
fg.ch.green = (fg.ch.green * bg.ch.green) >> 8;
fg.ch.blue = (fg.ch.blue * bg.ch.blue) >> 8;
#elif LV_COLOR_DEPTH == 16
fg.ch.red = (fg.ch.red * bg.ch.red) >> 5;
fg.ch.blue = (fg.ch.blue * bg.ch.blue) >> 5;
LV_COLOR_SET_G(fg, (LV_COLOR_GET_G(fg) * LV_COLOR_GET_G(bg)) >> 6);
#elif LV_COLOR_DEPTH == 8
fg.ch.red = (fg.ch.red * bg.ch.red) >> 3;
fg.ch.green = (fg.ch.green * bg.ch.green) >> 3;
fg.ch.blue = (fg.ch.blue * bg.ch.blue) >> 2;
#endif
if(opa == LV_OPA_COVER) return fg;
return lv_color_mix(fg, bg, opa);
}
#endif
#endif // LV_USE_GPU_SDL_RENDER
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/draw/lv_draw_blend.c | C | apache-2.0 | 43,274 |
/**
* @file lv_draw_blend.h
*
*/
#ifndef LV_DRAW_BLEND_H
#define LV_DRAW_BLEND_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "../misc/lv_color.h"
#include "../misc/lv_area.h"
#include "../misc/lv_style.h"
#include "lv_draw_mask.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* GLOBAL PROTOTYPES
**********************/
//! @cond Doxygen_Suppress
LV_ATTRIBUTE_FAST_MEM void _lv_blend_fill(const lv_area_t * clip_area, const lv_area_t * fill_area, lv_color_t color,
lv_opa_t * mask, lv_draw_mask_res_t mask_res, lv_opa_t opa, lv_blend_mode_t mode);
LV_ATTRIBUTE_FAST_MEM void _lv_blend_map(const lv_area_t * clip_area, const lv_area_t * map_area,
const lv_color_t * map_buf,
lv_opa_t * mask, lv_draw_mask_res_t mask_res, lv_opa_t opa, lv_blend_mode_t mode);
//! @endcond
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_DRAW_BLEND_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/draw/lv_draw_blend.h | C | apache-2.0 | 1,220 |
/**
* @file lv_draw_img.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_draw_img.h"
#include "lv_img_cache.h"
#include "../hal/lv_hal_disp.h"
#include "../misc/lv_log.h"
#include "../core/lv_refr.h"
#include "../misc/lv_mem.h"
#include "../misc/lv_math.h"
#if LV_USE_GPU_STM32_DMA2D
#include "../gpu/lv_gpu_stm32_dma2d.h"
#elif LV_USE_GPU_NXP_PXP
#include "../gpu/lv_gpu_nxp_pxp.h"
#endif
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
#if LV_USE_EXTERNAL_RENDERER == 0
LV_ATTRIBUTE_FAST_MEM static lv_res_t lv_img_draw_core(const lv_area_t * coords, const lv_area_t * clip_area,
const void * src,
const lv_draw_img_dsc_t * draw_dsc);
LV_ATTRIBUTE_FAST_MEM static void lv_draw_map(const lv_area_t * map_area, const lv_area_t * clip_area,
const uint8_t * map_p,
const lv_draw_img_dsc_t * draw_dsc,
bool chroma_key, bool alpha_byte);
static void show_error(const lv_area_t * coords, const lv_area_t * clip_area, const char * msg);
static void draw_cleanup(_lv_img_cache_entry_t * cache);
#endif
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
void lv_draw_img_dsc_init(lv_draw_img_dsc_t * dsc)
{
lv_memset_00(dsc, sizeof(lv_draw_img_dsc_t));
dsc->recolor = lv_color_black();
dsc->opa = LV_OPA_COVER;
dsc->zoom = LV_IMG_ZOOM_NONE;
dsc->antialias = LV_COLOR_DEPTH > 8 ? 1 : 0;
}
#if LV_USE_EXTERNAL_RENDERER == 0
/**
* Draw an image
* @param coords the coordinates of the image
* @param mask the image will be drawn only in this area
* @param src pointer to a lv_color_t array which contains the pixels of the image
* @param dsc pointer to an initialized `lv_draw_img_dsc_t` variable
*/
void lv_draw_img(const lv_area_t * coords, const lv_area_t * mask, const void * src, const lv_draw_img_dsc_t * dsc)
{
if(src == NULL) {
LV_LOG_WARN("Image draw: src is NULL");
show_error(coords, mask, "No\ndata");
return;
}
if(dsc->opa <= LV_OPA_MIN) return;
lv_res_t res;
res = lv_img_draw_core(coords, mask, src, dsc);
if(res == LV_RES_INV) {
LV_LOG_WARN("Image draw error");
show_error(coords, mask, "No\ndata");
return;
}
}
#endif //LV_USE_GPU_SDL_RENDER
/**
* Get the pixel size of a color format in bits
* @param cf a color format (`LV_IMG_CF_...`)
* @return the pixel size in bits
*/
uint8_t lv_img_cf_get_px_size(lv_img_cf_t cf)
{
uint8_t px_size = 0;
switch(cf) {
case LV_IMG_CF_UNKNOWN:
case LV_IMG_CF_RAW:
px_size = 0;
break;
case LV_IMG_CF_TRUE_COLOR:
case LV_IMG_CF_TRUE_COLOR_CHROMA_KEYED:
px_size = LV_COLOR_SIZE;
break;
case LV_IMG_CF_TRUE_COLOR_ALPHA:
px_size = LV_IMG_PX_SIZE_ALPHA_BYTE << 3;
break;
case LV_IMG_CF_INDEXED_1BIT:
case LV_IMG_CF_ALPHA_1BIT:
px_size = 1;
break;
case LV_IMG_CF_INDEXED_2BIT:
case LV_IMG_CF_ALPHA_2BIT:
px_size = 2;
break;
case LV_IMG_CF_INDEXED_4BIT:
case LV_IMG_CF_ALPHA_4BIT:
px_size = 4;
break;
case LV_IMG_CF_INDEXED_8BIT:
case LV_IMG_CF_ALPHA_8BIT:
px_size = 8;
break;
default:
px_size = 0;
break;
}
return px_size;
}
/**
* Check if a color format is chroma keyed or not
* @param cf a color format (`LV_IMG_CF_...`)
* @return true: chroma keyed; false: not chroma keyed
*/
bool lv_img_cf_is_chroma_keyed(lv_img_cf_t cf)
{
bool is_chroma_keyed = false;
switch(cf) {
case LV_IMG_CF_TRUE_COLOR_CHROMA_KEYED:
case LV_IMG_CF_RAW_CHROMA_KEYED:
case LV_IMG_CF_INDEXED_1BIT:
case LV_IMG_CF_INDEXED_2BIT:
case LV_IMG_CF_INDEXED_4BIT:
case LV_IMG_CF_INDEXED_8BIT:
is_chroma_keyed = true;
break;
default:
is_chroma_keyed = false;
break;
}
return is_chroma_keyed;
}
/**
* Check if a color format has alpha channel or not
* @param cf a color format (`LV_IMG_CF_...`)
* @return true: has alpha channel; false: doesn't have alpha channel
*/
bool lv_img_cf_has_alpha(lv_img_cf_t cf)
{
bool has_alpha = false;
switch(cf) {
case LV_IMG_CF_TRUE_COLOR_ALPHA:
case LV_IMG_CF_RAW_ALPHA:
case LV_IMG_CF_INDEXED_1BIT:
case LV_IMG_CF_INDEXED_2BIT:
case LV_IMG_CF_INDEXED_4BIT:
case LV_IMG_CF_INDEXED_8BIT:
case LV_IMG_CF_ALPHA_1BIT:
case LV_IMG_CF_ALPHA_2BIT:
case LV_IMG_CF_ALPHA_4BIT:
case LV_IMG_CF_ALPHA_8BIT:
has_alpha = true;
break;
default:
has_alpha = false;
break;
}
return has_alpha;
}
/**
* Get the type of an image source
* @param src pointer to an image source:
* - pointer to an 'lv_img_t' variable (image stored internally and compiled into the code)
* - a path to a file (e.g. "S:/folder/image.bin")
* - or a symbol (e.g. LV_SYMBOL_CLOSE)
* @return type of the image source LV_IMG_SRC_VARIABLE/FILE/SYMBOL/UNKNOWN
*/
lv_img_src_t lv_img_src_get_type(const void * src)
{
lv_img_src_t img_src_type = LV_IMG_SRC_UNKNOWN;
if(src == NULL) return img_src_type;
const uint8_t * u8_p = src;
/*The first byte shows the type of the image source*/
if(u8_p[0] >= 0x20 && u8_p[0] <= 0x7F) {
img_src_type = LV_IMG_SRC_FILE; /*If it's an ASCII character then it's file name*/
}
else if(u8_p[0] >= 0x80) {
img_src_type = LV_IMG_SRC_SYMBOL; /*Symbols begins after 0x7F*/
}
else {
img_src_type = LV_IMG_SRC_VARIABLE; /*`lv_img_dsc_t` is draw to the first byte < 0x20*/
}
if(LV_IMG_SRC_UNKNOWN == img_src_type) {
LV_LOG_WARN("lv_img_src_get_type: unknown image type");
}
return img_src_type;
}
/**********************
* STATIC FUNCTIONS
**********************/
#if LV_USE_EXTERNAL_RENDERER == 0
LV_ATTRIBUTE_FAST_MEM static lv_res_t lv_img_draw_core(const lv_area_t * coords, const lv_area_t * clip_area,
const void * src,
const lv_draw_img_dsc_t * draw_dsc)
{
if(draw_dsc->opa <= LV_OPA_MIN) return LV_RES_OK;
_lv_img_cache_entry_t * cdsc = _lv_img_cache_open(src, draw_dsc->recolor, draw_dsc->frame_id);
if(cdsc == NULL) return LV_RES_INV;
bool chroma_keyed = lv_img_cf_is_chroma_keyed(cdsc->dec_dsc.header.cf);
bool alpha_byte = lv_img_cf_has_alpha(cdsc->dec_dsc.header.cf);
if(cdsc->dec_dsc.error_msg != NULL) {
LV_LOG_WARN("Image draw error");
show_error(coords, clip_area, cdsc->dec_dsc.error_msg);
}
/*The decoder could open the image and gave the entire uncompressed image.
*Just draw it!*/
else if(cdsc->dec_dsc.img_data) {
lv_area_t map_area_rot;
lv_area_copy(&map_area_rot, coords);
if(draw_dsc->angle || draw_dsc->zoom != LV_IMG_ZOOM_NONE) {
int32_t w = lv_area_get_width(coords);
int32_t h = lv_area_get_height(coords);
_lv_img_buf_get_transformed_area(&map_area_rot, w, h, draw_dsc->angle, draw_dsc->zoom, &draw_dsc->pivot);
map_area_rot.x1 += coords->x1;
map_area_rot.y1 += coords->y1;
map_area_rot.x2 += coords->x1;
map_area_rot.y2 += coords->y1;
}
lv_area_t mask_com; /*Common area of mask and coords*/
bool union_ok;
union_ok = _lv_area_intersect(&mask_com, clip_area, &map_area_rot);
/*Out of mask. There is nothing to draw so the image is drawn successfully.*/
if(union_ok == false) {
draw_cleanup(cdsc);
return LV_RES_OK;
}
lv_draw_map(coords, &mask_com, cdsc->dec_dsc.img_data, draw_dsc, chroma_keyed, alpha_byte);
}
/*The whole uncompressed image is not available. Try to read it line-by-line*/
else {
lv_area_t mask_com; /*Common area of mask and coords*/
bool union_ok;
union_ok = _lv_area_intersect(&mask_com, clip_area, coords);
/*Out of mask. There is nothing to draw so the image is drawn successfully.*/
if(union_ok == false) {
draw_cleanup(cdsc);
return LV_RES_OK;
}
int32_t width = lv_area_get_width(&mask_com);
uint8_t * buf = lv_mem_buf_get(lv_area_get_width(&mask_com) *
LV_IMG_PX_SIZE_ALPHA_BYTE); /*+1 because of the possible alpha byte*/
lv_area_t line;
lv_area_copy(&line, &mask_com);
lv_area_set_height(&line, 1);
int32_t x = mask_com.x1 - coords->x1;
int32_t y = mask_com.y1 - coords->y1;
int32_t row;
lv_res_t read_res;
for(row = mask_com.y1; row <= mask_com.y2; row++) {
lv_area_t mask_line;
union_ok = _lv_area_intersect(&mask_line, clip_area, &line);
if(union_ok == false) continue;
read_res = lv_img_decoder_read_line(&cdsc->dec_dsc, x, y, width, buf);
if(read_res != LV_RES_OK) {
lv_img_decoder_close(&cdsc->dec_dsc);
LV_LOG_WARN("Image draw can't read the line");
lv_mem_buf_release(buf);
draw_cleanup(cdsc);
return LV_RES_INV;
}
lv_draw_map(&line, &mask_line, buf, draw_dsc, chroma_keyed, alpha_byte);
line.y1++;
line.y2++;
y++;
}
lv_mem_buf_release(buf);
}
draw_cleanup(cdsc);
return LV_RES_OK;
}
/**
* Draw a color map to the display (image)
* @param map_area coordinates the color map
* @param clip_area the map will drawn only on this area (truncated to draw_buf area)
* @param map_p pointer to a lv_color_t array
* @param draw_dsc pointer to an initialized `lv_draw_img_dsc_t` variable
* @param chroma_key true: enable transparency of LV_IMG_LV_COLOR_TRANSP color pixels
* @param alpha_byte true: extra alpha byte is inserted for every pixel
*/
LV_ATTRIBUTE_FAST_MEM static void lv_draw_map(const lv_area_t * map_area, const lv_area_t * clip_area,
const uint8_t * map_p,
const lv_draw_img_dsc_t * draw_dsc,
bool chroma_key, bool alpha_byte)
{
/*Use the clip area as draw area*/
lv_area_t draw_area;
lv_area_copy(&draw_area, clip_area);
lv_disp_t * disp = _lv_refr_get_disp_refreshing();
lv_disp_draw_buf_t * draw_buf = lv_disp_get_draw_buf(disp);
const lv_area_t * disp_area = &draw_buf->area;
/*Now `draw_area` has absolute coordinates.
*Make it relative to `disp_area` to simplify draw to `disp_buf`*/
draw_area.x1 -= disp_area->x1;
draw_area.y1 -= disp_area->y1;
draw_area.x2 -= disp_area->x1;
draw_area.y2 -= disp_area->y1;
bool mask_any = lv_draw_mask_is_any(clip_area);
/*The simplest case just copy the pixels into the draw_buf*/
if(!mask_any && draw_dsc->angle == 0 && draw_dsc->zoom == LV_IMG_ZOOM_NONE &&
chroma_key == false && alpha_byte == false && draw_dsc->recolor_opa == LV_OPA_TRANSP) {
_lv_blend_map(clip_area, map_area, (lv_color_t *)map_p, NULL, LV_DRAW_MASK_RES_FULL_COVER, draw_dsc->opa,
draw_dsc->blend_mode);
}
#if LV_USE_GPU_NXP_PXP
/*Simple case without masking and transformations*/
else if(!mask_any && draw_dsc->angle == 0 && draw_dsc->zoom == LV_IMG_ZOOM_NONE && alpha_byte == false &&
chroma_key == true && draw_dsc->recolor_opa == LV_OPA_TRANSP) { /*copy with color keying (+ alpha)*/
lv_gpu_nxp_pxp_enable_color_key();
_lv_blend_map(clip_area, map_area, (lv_color_t *)map_p, NULL, LV_DRAW_MASK_RES_FULL_COVER, draw_dsc->opa,
draw_dsc->blend_mode);
lv_gpu_nxp_pxp_disable_color_key();
}
else if(!mask_any && draw_dsc->angle == 0 && draw_dsc->zoom == LV_IMG_ZOOM_NONE && alpha_byte == false &&
chroma_key == false && draw_dsc->recolor_opa != LV_OPA_TRANSP) { /*copy with recolor (+ alpha)*/
lv_gpu_nxp_pxp_enable_recolor(draw_dsc->recolor, draw_dsc->recolor_opa);
_lv_blend_map(clip_area, map_area, (lv_color_t *)map_p, NULL, LV_DRAW_MASK_RES_FULL_COVER, draw_dsc->opa,
draw_dsc->blend_mode);
lv_gpu_nxp_pxp_disable_recolor();
}
#endif
/*In the other cases every pixel need to be checked one-by-one*/
else {
//#if LV_DRAW_COMPLEX
/*The pixel size in byte is different if an alpha byte is added too*/
uint8_t px_size_byte = alpha_byte ? LV_IMG_PX_SIZE_ALPHA_BYTE : sizeof(lv_color_t);
/*Go to the first displayed pixel of the map*/
int32_t map_w = lv_area_get_width(map_area);
const uint8_t * map_buf_tmp = map_p;
map_buf_tmp += map_w * (draw_area.y1 - (map_area->y1 - disp_area->y1)) * px_size_byte;
map_buf_tmp += (draw_area.x1 - (map_area->x1 - disp_area->x1)) * px_size_byte;
lv_color_t c;
lv_color_t chroma_keyed_color = LV_COLOR_CHROMA_KEY;
uint32_t px_i = 0;
const uint8_t * map_px;
lv_coord_t draw_area_h = lv_area_get_height(&draw_area);
lv_coord_t draw_area_w = lv_area_get_width(&draw_area);
lv_area_t blend_area;
blend_area.x1 = draw_area.x1 + disp_area->x1;
blend_area.x2 = blend_area.x1 + draw_area_w - 1;
blend_area.y1 = disp_area->y1 + draw_area.y1;
blend_area.y2 = blend_area.y1;
bool transform = draw_dsc->angle != 0 || draw_dsc->zoom != LV_IMG_ZOOM_NONE ? true : false;
/*Simple ARGB image. Handle it as special case because it's very common*/
if(!mask_any && !transform && !chroma_key && draw_dsc->recolor_opa == LV_OPA_TRANSP && alpha_byte) {
#if LV_USE_GPU_STM32_DMA2D && LV_COLOR_DEPTH == 32
/*Blend ARGB images directly*/
if(lv_area_get_size(&draw_area) > 240) {
int32_t disp_w = lv_area_get_width(disp_area);
lv_color_t * disp_buf = draw_buf->buf_act;
lv_color_t * disp_buf_first = disp_buf + disp_w * draw_area.y1 + draw_area.x1;
lv_gpu_stm32_dma2d_blend(disp_buf_first, disp_w, (const lv_color_t *)map_buf_tmp, draw_dsc->opa, map_w, draw_area_w,
draw_area_h);
return;
}
#endif
uint32_t hor_res = (uint32_t) lv_disp_get_hor_res(disp);
uint32_t mask_buf_size = lv_area_get_size(&draw_area) > (uint32_t) hor_res ? hor_res : lv_area_get_size(&draw_area);
lv_color_t * map2 = lv_mem_buf_get(mask_buf_size * sizeof(lv_color_t));
lv_opa_t * mask_buf = lv_mem_buf_get(mask_buf_size);
int32_t x;
int32_t y;
for(y = 0; y < draw_area_h; y++) {
map_px = map_buf_tmp;
for(x = 0; x < draw_area_w; x++, map_px += px_size_byte, px_i++) {
lv_opa_t px_opa = map_px[LV_IMG_PX_SIZE_ALPHA_BYTE - 1];
mask_buf[px_i] = px_opa;
if(px_opa) {
#if LV_COLOR_DEPTH == 8 || LV_COLOR_DEPTH == 1
map2[px_i].full = map_px[0];
#elif LV_COLOR_DEPTH == 16
map2[px_i].full = map_px[0] + (map_px[1] << 8);
#elif LV_COLOR_DEPTH == 32
map2[px_i].full = *((uint32_t *)map_px);
#endif
}
#if LV_COLOR_DEPTH == 32
map2[px_i].ch.alpha = 0xFF;
#endif
}
map_buf_tmp += map_w * px_size_byte;
if(px_i + draw_area_w < mask_buf_size) {
blend_area.y2 ++;
}
else {
_lv_blend_map(clip_area, &blend_area, map2, mask_buf, LV_DRAW_MASK_RES_CHANGED, draw_dsc->opa, draw_dsc->blend_mode);
blend_area.y1 = blend_area.y2 + 1;
blend_area.y2 = blend_area.y1;
px_i = 0;
}
}
/*Flush the last part*/
if(blend_area.y1 != blend_area.y2) {
blend_area.y2--;
_lv_blend_map(clip_area, &blend_area, map2, mask_buf, LV_DRAW_MASK_RES_CHANGED, draw_dsc->opa, draw_dsc->blend_mode);
}
lv_mem_buf_release(mask_buf);
lv_mem_buf_release(map2);
}
/*Most complicated case: transform or other mask or chroma keyed*/
else {
/*Build the image and a mask line-by-line*/
uint32_t hor_res = (uint32_t) lv_disp_get_hor_res(disp);
uint32_t mask_buf_size = lv_area_get_size(&draw_area) > hor_res ? hor_res : lv_area_get_size(&draw_area);
lv_color_t * map2 = lv_mem_buf_get(mask_buf_size * sizeof(lv_color_t));
lv_opa_t * mask_buf = lv_mem_buf_get(mask_buf_size);
#if LV_DRAW_COMPLEX
lv_img_transform_dsc_t trans_dsc;
lv_memset_00(&trans_dsc, sizeof(lv_img_transform_dsc_t));
if(transform) {
lv_img_cf_t cf = LV_IMG_CF_TRUE_COLOR;
if(alpha_byte) cf = LV_IMG_CF_TRUE_COLOR_ALPHA;
else if(chroma_key) cf = LV_IMG_CF_TRUE_COLOR_CHROMA_KEYED;
trans_dsc.cfg.angle = draw_dsc->angle;
trans_dsc.cfg.zoom = draw_dsc->zoom;
trans_dsc.cfg.src = map_p;
trans_dsc.cfg.src_w = map_w;
trans_dsc.cfg.src_h = lv_area_get_height(map_area);;
trans_dsc.cfg.cf = cf;
trans_dsc.cfg.pivot_x = draw_dsc->pivot.x;
trans_dsc.cfg.pivot_y = draw_dsc->pivot.y;
trans_dsc.cfg.color = draw_dsc->recolor;
trans_dsc.cfg.antialias = draw_dsc->antialias;
_lv_img_buf_transform_init(&trans_dsc);
}
#endif
uint16_t recolor_premult[3] = {0};
lv_opa_t recolor_opa_inv = 255 - draw_dsc->recolor_opa;
if(draw_dsc->recolor_opa != 0) {
lv_color_premult(draw_dsc->recolor, draw_dsc->recolor_opa, recolor_premult);
}
lv_draw_mask_res_t mask_res;
mask_res = (alpha_byte || chroma_key || draw_dsc->angle ||
draw_dsc->zoom != LV_IMG_ZOOM_NONE) ? LV_DRAW_MASK_RES_CHANGED : LV_DRAW_MASK_RES_FULL_COVER;
/*Prepare the `mask_buf`if there are other masks*/
if(mask_any) {
lv_memset_ff(mask_buf, mask_buf_size);
}
int32_t x;
int32_t y;
#if LV_DRAW_COMPLEX
int32_t rot_y = disp_area->y1 + draw_area.y1 - map_area->y1;
#endif
for(y = 0; y < draw_area_h; y++) {
map_px = map_buf_tmp;
#if LV_DRAW_COMPLEX
uint32_t px_i_start = px_i;
int32_t rot_x = disp_area->x1 + draw_area.x1 - map_area->x1;
#endif
for(x = 0; x < draw_area_w; x++, map_px += px_size_byte, px_i++) {
#if LV_DRAW_COMPLEX
if(transform) {
/*Transform*/
bool ret;
ret = _lv_img_buf_transform(&trans_dsc, rot_x + x, rot_y + y);
if(ret == false) {
mask_buf[px_i] = LV_OPA_TRANSP;
continue;
}
else {
mask_buf[px_i] = trans_dsc.res.opa;
c.full = trans_dsc.res.color.full;
}
}
/*No transform*/
else
#endif
{
if(alpha_byte) {
lv_opa_t px_opa = map_px[LV_IMG_PX_SIZE_ALPHA_BYTE - 1];
mask_buf[px_i] = px_opa;
if(px_opa == 0) {
#if LV_COLOR_DEPTH == 32
map2[px_i].full = 0;
#endif
continue;
}
}
else {
mask_buf[px_i] = 0xFF;
}
#if LV_COLOR_DEPTH == 1
c.full = map_px[0];
#elif LV_COLOR_DEPTH == 8
c.full = map_px[0];
#elif LV_COLOR_DEPTH == 16
c.full = map_px[0] + (map_px[1] << 8);
#elif LV_COLOR_DEPTH == 32
c.full = *((uint32_t *)map_px);
c.ch.alpha = 0xFF;
#endif
if(chroma_key) {
if(c.full == chroma_keyed_color.full) {
mask_buf[px_i] = LV_OPA_TRANSP;
#if LV_COLOR_DEPTH == 32
map2[px_i].full = 0;
#endif
continue;
}
}
}
if(draw_dsc->recolor_opa != 0) {
c = lv_color_mix_premult(recolor_premult, c, recolor_opa_inv);
}
map2[px_i].full = c.full;
}
#if LV_DRAW_COMPLEX
/*Apply the masks if any*/
if(mask_any) {
lv_draw_mask_res_t mask_res_sub;
mask_res_sub = lv_draw_mask_apply(mask_buf + px_i_start, draw_area.x1 + draw_buf->area.x1,
y + draw_area.y1 + draw_buf->area.y1,
draw_area_w);
if(mask_res_sub == LV_DRAW_MASK_RES_TRANSP) {
lv_memset_00(mask_buf + px_i_start, draw_area_w);
mask_res = LV_DRAW_MASK_RES_CHANGED;
}
else if(mask_res_sub == LV_DRAW_MASK_RES_CHANGED) {
mask_res = LV_DRAW_MASK_RES_CHANGED;
}
}
#endif
map_buf_tmp += map_w * px_size_byte;
if(px_i + draw_area_w < mask_buf_size) {
blend_area.y2 ++;
}
else {
_lv_blend_map(clip_area, &blend_area, map2, mask_buf, mask_res, draw_dsc->opa, draw_dsc->blend_mode);
blend_area.y1 = blend_area.y2 + 1;
blend_area.y2 = blend_area.y1;
px_i = 0;
mask_res = (alpha_byte || chroma_key || draw_dsc->angle ||
draw_dsc->zoom != LV_IMG_ZOOM_NONE) ? LV_DRAW_MASK_RES_CHANGED : LV_DRAW_MASK_RES_FULL_COVER;
/*Prepare the `mask_buf`if there are other masks*/
if(mask_any) {
lv_memset_ff(mask_buf, mask_buf_size);
}
}
}
/*Flush the last part*/
if(blend_area.y1 != blend_area.y2) {
blend_area.y2--;
_lv_blend_map(clip_area, &blend_area, map2, mask_buf, mask_res, draw_dsc->opa, draw_dsc->blend_mode);
}
lv_mem_buf_release(mask_buf);
lv_mem_buf_release(map2);
}
}
}
static void show_error(const lv_area_t * coords, const lv_area_t * clip_area, const char * msg)
{
lv_draw_rect_dsc_t rect_dsc;
lv_draw_rect_dsc_init(&rect_dsc);
rect_dsc.bg_color = lv_color_white();
lv_draw_rect(coords, clip_area, &rect_dsc);
lv_draw_label_dsc_t label_dsc;
lv_draw_label_dsc_init(&label_dsc);
lv_draw_label(coords, clip_area, &label_dsc, msg, NULL);
}
static void draw_cleanup(_lv_img_cache_entry_t * cache)
{
/*Automatically close images with no caching*/
#if LV_IMG_CACHE_DEF_SIZE == 0
lv_img_decoder_close(&cache->dec_dsc);
#else
LV_UNUSED(cache);
#endif
}
#endif //LV_USE_GPU_SDL_RENDER | YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/draw/lv_draw_img.c | C | apache-2.0 | 24,537 |
/**
* @file lv_draw_img.h
*
*/
#ifndef LV_DRAW_IMG_H
#define LV_DRAW_IMG_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "lv_img_decoder.h"
#include "lv_img_buf.h"
#include "lv_draw_blend.h"
/*********************
* DEFINES
*********************/
/**********************
* MACROS
**********************/
/**********************
* TYPEDEFS
**********************/
typedef struct {
uint16_t angle;
uint16_t zoom;
lv_point_t pivot;
lv_color_t recolor;
lv_opa_t recolor_opa;
lv_opa_t opa;
lv_blend_mode_t blend_mode : 4;
int32_t frame_id;
uint8_t antialias : 1;
} lv_draw_img_dsc_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
void lv_draw_img_dsc_init(lv_draw_img_dsc_t * dsc);
/**
* Draw an image
* @param coords the coordinates of the image
* @param mask the image will be drawn only in this area
* @param src pointer to a lv_color_t array which contains the pixels of the image
* @param dsc pointer to an initialized `lv_draw_img_dsc_t` variable
*/
void lv_draw_img(const lv_area_t * coords, const lv_area_t * mask, const void * src, const lv_draw_img_dsc_t * dsc);
/**
* Get the type of an image source
* @param src pointer to an image source:
* - pointer to an 'lv_img_t' variable (image stored internally and compiled into the code)
* - a path to a file (e.g. "S:/folder/image.bin")
* - or a symbol (e.g. LV_SYMBOL_CLOSE)
* @return type of the image source LV_IMG_SRC_VARIABLE/FILE/SYMBOL/UNKNOWN
*/
lv_img_src_t lv_img_src_get_type(const void * src);
/**
* Get the pixel size of a color format in bits
* @param cf a color format (`LV_IMG_CF_...`)
* @return the pixel size in bits
*/
uint8_t lv_img_cf_get_px_size(lv_img_cf_t cf);
/**
* Check if a color format is chroma keyed or not
* @param cf a color format (`LV_IMG_CF_...`)
* @return true: chroma keyed; false: not chroma keyed
*/
bool lv_img_cf_is_chroma_keyed(lv_img_cf_t cf);
/**
* Check if a color format has alpha channel or not
* @param cf a color format (`LV_IMG_CF_...`)
* @return true: has alpha channel; false: doesn't have alpha channel
*/
bool lv_img_cf_has_alpha(lv_img_cf_t cf);
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_DRAW_IMG_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/draw/lv_draw_img.h | C | apache-2.0 | 2,324 |
/**
* @file lv_draw_label.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_draw_label.h"
#include "../misc/lv_math.h"
#include "../hal/lv_hal_disp.h"
#include "../core/lv_refr.h"
#include "../misc/lv_bidi.h"
#include "../misc/lv_assert.h"
#if LV_USE_GPU_SDL
#include "../gpu/lv_gpu_sdl.h"
#endif
/*********************
* DEFINES
*********************/
#define LABEL_RECOLOR_PAR_LENGTH 6
#define LV_LABEL_HINT_UPDATE_TH 1024 /*Update the "hint" if the label's y coordinates have changed more then this*/
/**********************
* TYPEDEFS
**********************/
enum {
CMD_STATE_WAIT,
CMD_STATE_PAR,
CMD_STATE_IN,
};
typedef uint8_t cmd_state_t;
/**********************
* STATIC PROTOTYPES
**********************/
#if LV_USE_EXTERNAL_RENDERER == 0
LV_ATTRIBUTE_FAST_MEM static void draw_letter_normal(lv_coord_t pos_x, lv_coord_t pos_y, lv_font_glyph_dsc_t * g,
const lv_area_t * clip_area,
const uint8_t * map_p, lv_color_t color, lv_opa_t opa, lv_blend_mode_t blend_mode);
#if LV_DRAW_COMPLEX && LV_USE_FONT_SUBPX
static void draw_letter_subpx(lv_coord_t pos_x, lv_coord_t pos_y, lv_font_glyph_dsc_t * g, const lv_area_t * clip_area,
const uint8_t * map_p, lv_color_t color, lv_opa_t opa, lv_blend_mode_t blend_mode);
#endif /*LV_DRAW_COMPLEX && LV_USE_FONT_SUBPX*/
#endif /*LV_USE_EXTERNAL_RENDERER*/
static uint8_t hex_char_to_num(char hex);
/**********************
* STATIC VARIABLES
**********************/
/**********************
* GLOBAL VARIABLES
**********************/
const uint8_t _lv_bpp1_opa_table[2] = {0, 255}; /*Opacity mapping with bpp = 1 (Just for compatibility)*/
const uint8_t _lv_bpp2_opa_table[4] = {0, 85, 170, 255}; /*Opacity mapping with bpp = 2*/
const uint8_t _lv_bpp3_opa_table[8] = {0, 36, 73, 109, /*Opacity mapping with bpp = 3*/
146, 182, 219, 255
};
const uint8_t _lv_bpp4_opa_table[16] = {0, 17, 34, 51, /*Opacity mapping with bpp = 4*/
68, 85, 102, 119,
136, 153, 170, 187,
204, 221, 238, 255
};
const uint8_t _lv_bpp8_opa_table[256] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,
96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111,
112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127,
128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143,
144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159,
160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175,
176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191,
192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207,
208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223,
224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239,
240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255
};
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
LV_ATTRIBUTE_FAST_MEM void lv_draw_label_dsc_init(lv_draw_label_dsc_t * dsc)
{
lv_memset_00(dsc, sizeof(lv_draw_label_dsc_t));
dsc->opa = LV_OPA_COVER;
dsc->color = lv_color_black();
dsc->font = LV_FONT_DEFAULT;
dsc->sel_start = LV_DRAW_LABEL_NO_TXT_SEL;
dsc->sel_end = LV_DRAW_LABEL_NO_TXT_SEL;
dsc->sel_color = lv_color_black();
dsc->sel_bg_color = lv_palette_main(LV_PALETTE_BLUE);
dsc->bidi_dir = LV_BASE_DIR_LTR;
}
/**
* Write a text
* @param coords coordinates of the label
* @param mask the label will be drawn only in this area
* @param dsc pointer to draw descriptor
* @param txt `\0` terminated text to write
* @param hint pointer to a `lv_draw_label_hint_t` variable.
* It is managed by the draw to speed up the drawing of very long texts (thousands of lines).
*/
LV_ATTRIBUTE_FAST_MEM void lv_draw_label(const lv_area_t * coords, const lv_area_t * mask,
const lv_draw_label_dsc_t * dsc,
const char * txt,
lv_draw_label_hint_t * hint)
{
if(dsc->opa <= LV_OPA_MIN) return;
const lv_font_t * font = dsc->font;
int32_t w;
/*No need to waste processor time if string is empty*/
if(txt == NULL || txt[0] == '\0')
return;
lv_area_t clipped_area;
bool clip_ok = _lv_area_intersect(&clipped_area, coords, mask);
if(!clip_ok) return;
lv_text_align_t align = dsc->align;
lv_base_dir_t base_dir = dsc->bidi_dir;
lv_bidi_calculate_align(&align, &base_dir, txt);
if((dsc->flag & LV_TEXT_FLAG_EXPAND) == 0) {
/*Normally use the label's width as width*/
w = lv_area_get_width(coords);
}
else {
/*If EXAPND is enabled then not limit the text's width to the object's width*/
lv_point_t p;
lv_txt_get_size(&p, txt, dsc->font, dsc->letter_space, dsc->line_space, LV_COORD_MAX,
dsc->flag);
w = p.x;
}
int32_t line_height_font = lv_font_get_line_height(font);
int32_t line_height = line_height_font + dsc->line_space;
/*Init variables for the first line*/
int32_t line_width = 0;
lv_point_t pos;
pos.x = coords->x1;
pos.y = coords->y1;
int32_t x_ofs = 0;
int32_t y_ofs = 0;
x_ofs = dsc->ofs_x;
y_ofs = dsc->ofs_y;
pos.y += y_ofs;
uint32_t line_start = 0;
int32_t last_line_start = -1;
/*Check the hint to use the cached info*/
if(hint && y_ofs == 0 && coords->y1 < 0) {
/*If the label changed too much recalculate the hint.*/
if(LV_ABS(hint->coord_y - coords->y1) > LV_LABEL_HINT_UPDATE_TH - 2 * line_height) {
hint->line_start = -1;
}
last_line_start = hint->line_start;
}
/*Use the hint if it's valid*/
if(hint && last_line_start >= 0) {
line_start = last_line_start;
pos.y += hint->y;
}
uint32_t line_end = line_start + _lv_txt_get_next_line(&txt[line_start], font, dsc->letter_space, w, dsc->flag);
/*Go the first visible line*/
while(pos.y + line_height_font < mask->y1) {
/*Go to next line*/
line_start = line_end;
line_end += _lv_txt_get_next_line(&txt[line_start], font, dsc->letter_space, w, dsc->flag);
pos.y += line_height;
/*Save at the threshold coordinate*/
if(hint && pos.y >= -LV_LABEL_HINT_UPDATE_TH && hint->line_start < 0) {
hint->line_start = line_start;
hint->y = pos.y - coords->y1;
hint->coord_y = coords->y1;
}
if(txt[line_start] == '\0') return;
}
/*Align to middle*/
if(align == LV_TEXT_ALIGN_CENTER) {
line_width = lv_txt_get_width(&txt[line_start], line_end - line_start, font, dsc->letter_space, dsc->flag);
pos.x += (lv_area_get_width(coords) - line_width) / 2;
}
/*Align to the right*/
else if(align == LV_TEXT_ALIGN_RIGHT) {
line_width = lv_txt_get_width(&txt[line_start], line_end - line_start, font, dsc->letter_space, dsc->flag);
pos.x += lv_area_get_width(coords) - line_width;
}
lv_opa_t opa = dsc->opa;
uint32_t sel_start = dsc->sel_start;
uint32_t sel_end = dsc->sel_end;
if(sel_start > sel_end) {
uint32_t tmp = sel_start;
sel_start = sel_end;
sel_end = tmp;
}
lv_draw_line_dsc_t line_dsc;
if((dsc->decor & LV_TEXT_DECOR_UNDERLINE) || (dsc->decor & LV_TEXT_DECOR_STRIKETHROUGH)) {
lv_draw_line_dsc_init(&line_dsc);
line_dsc.color = dsc->color;
line_dsc.width = font->underline_thickness ? font->underline_thickness : 1;
line_dsc.opa = dsc->opa;
line_dsc.blend_mode = dsc->blend_mode;
}
cmd_state_t cmd_state = CMD_STATE_WAIT;
uint32_t i;
uint32_t par_start = 0;
lv_color_t recolor;
int32_t letter_w;
lv_draw_rect_dsc_t draw_dsc_sel;
lv_draw_rect_dsc_init(&draw_dsc_sel);
draw_dsc_sel.bg_color = dsc->sel_bg_color;
int32_t pos_x_start = pos.x;
/*Write out all lines*/
while(txt[line_start] != '\0') {
pos.x += x_ofs;
/*Write all letter of a line*/
cmd_state = CMD_STATE_WAIT;
i = 0;
#if LV_USE_BIDI
char * bidi_txt = lv_mem_buf_get(line_end - line_start + 1);
_lv_bidi_process_paragraph(txt + line_start, bidi_txt, line_end - line_start, base_dir, NULL, 0);
#else
const char * bidi_txt = txt + line_start;
#endif
while(i < line_end - line_start) {
uint32_t logical_char_pos = 0;
if(sel_start != 0xFFFF && sel_end != 0xFFFF) {
#if LV_USE_BIDI
logical_char_pos = _lv_txt_encoded_get_char_id(txt, line_start);
uint32_t t = _lv_txt_encoded_get_char_id(bidi_txt, i);
logical_char_pos += _lv_bidi_get_logical_pos(bidi_txt, NULL, line_end - line_start, base_dir, t, NULL);
#else
logical_char_pos = _lv_txt_encoded_get_char_id(txt, line_start + i);
#endif
}
uint32_t letter;
uint32_t letter_next;
_lv_txt_encoded_letter_next_2(bidi_txt, &letter, &letter_next, &i);
/*Handle the re-color command*/
if((dsc->flag & LV_TEXT_FLAG_RECOLOR) != 0) {
if(letter == (uint32_t)LV_TXT_COLOR_CMD[0]) {
if(cmd_state == CMD_STATE_WAIT) { /*Start char*/
par_start = i;
cmd_state = CMD_STATE_PAR;
continue;
}
else if(cmd_state == CMD_STATE_PAR) { /*Other start char in parameter escaped cmd. char*/
cmd_state = CMD_STATE_WAIT;
}
else if(cmd_state == CMD_STATE_IN) { /*Command end*/
cmd_state = CMD_STATE_WAIT;
continue;
}
}
/*Skip the color parameter and wait the space after it*/
if(cmd_state == CMD_STATE_PAR) {
if(letter == ' ') {
/*Get the parameter*/
if(i - par_start == LABEL_RECOLOR_PAR_LENGTH + 1) {
char buf[LABEL_RECOLOR_PAR_LENGTH + 1];
lv_memcpy_small(buf, &bidi_txt[par_start], LABEL_RECOLOR_PAR_LENGTH);
buf[LABEL_RECOLOR_PAR_LENGTH] = '\0';
int r, g, b;
r = (hex_char_to_num(buf[0]) << 4) + hex_char_to_num(buf[1]);
g = (hex_char_to_num(buf[2]) << 4) + hex_char_to_num(buf[3]);
b = (hex_char_to_num(buf[4]) << 4) + hex_char_to_num(buf[5]);
recolor = lv_color_make(r, g, b);
}
else {
recolor.full = dsc->color.full;
}
cmd_state = CMD_STATE_IN; /*After the parameter the text is in the command*/
}
continue;
}
}
lv_color_t color = dsc->color;
if(cmd_state == CMD_STATE_IN) color = recolor;
letter_w = lv_font_get_glyph_width(font, letter, letter_next);
if(sel_start != 0xFFFF && sel_end != 0xFFFF) {
if(logical_char_pos >= sel_start && logical_char_pos < sel_end) {
lv_area_t sel_coords;
sel_coords.x1 = pos.x;
sel_coords.y1 = pos.y;
sel_coords.x2 = pos.x + letter_w + dsc->letter_space - 1;
sel_coords.y2 = pos.y + line_height - 1;
lv_draw_rect(&sel_coords, mask, &draw_dsc_sel);
color = dsc->sel_color;
}
}
lv_draw_letter(&pos, mask, font, letter, color, opa, dsc->blend_mode);
if(letter_w > 0) {
pos.x += letter_w + dsc->letter_space;
}
}
if(dsc->decor & LV_TEXT_DECOR_STRIKETHROUGH) {
lv_point_t p1;
lv_point_t p2;
p1.x = pos_x_start;
p1.y = pos.y + (dsc->font->line_height / 2) + line_dsc.width / 2;
p2.x = pos.x;
p2.y = p1.y;
lv_draw_line(&p1, &p2, mask, &line_dsc);
}
if(dsc->decor & LV_TEXT_DECOR_UNDERLINE) {
lv_point_t p1;
lv_point_t p2;
p1.x = pos_x_start;
p1.y = pos.y + dsc->font->line_height - dsc->font->base_line - font->underline_position;
p2.x = pos.x;
p2.y = p1.y;
lv_draw_line(&p1, &p2, mask, &line_dsc);
}
#if LV_USE_BIDI
lv_mem_buf_release(bidi_txt);
bidi_txt = NULL;
#endif
/*Go to next line*/
line_start = line_end;
line_end += _lv_txt_get_next_line(&txt[line_start], font, dsc->letter_space, w, dsc->flag);
pos.x = coords->x1;
/*Align to middle*/
if(align == LV_TEXT_ALIGN_CENTER) {
line_width =
lv_txt_get_width(&txt[line_start], line_end - line_start, font, dsc->letter_space, dsc->flag);
pos.x += (lv_area_get_width(coords) - line_width) / 2;
}
/*Align to the right*/
else if(align == LV_TEXT_ALIGN_RIGHT) {
line_width =
lv_txt_get_width(&txt[line_start], line_end - line_start, font, dsc->letter_space, dsc->flag);
pos.x += lv_area_get_width(coords) - line_width;
}
/*Go the next line position*/
pos.y += line_height;
if(pos.y > mask->y2) return;
}
LV_ASSERT_MEM_INTEGRITY();
}
#if LV_USE_EXTERNAL_RENDERER == 0
/**********************
* STATIC FUNCTIONS
**********************/
/**
* Draw a letter in the Virtual Display Buffer
* @param pos_p left-top coordinate of the latter
* @param mask_p the letter will be drawn only on this area (truncated to draw_buf area)
* @param font_p pointer to font
* @param letter a letter to draw
* @param color color of letter
* @param opa opacity of letter (0..255)
*/
LV_ATTRIBUTE_FAST_MEM void lv_draw_letter(const lv_point_t * pos_p, const lv_area_t * clip_area,
const lv_font_t * font_p,
uint32_t letter,
lv_color_t color, lv_opa_t opa, lv_blend_mode_t blend_mode)
{
if(opa < LV_OPA_MIN) return;
if(opa > LV_OPA_MAX) opa = LV_OPA_COVER;
if(font_p == NULL) {
LV_LOG_WARN("lv_draw_letter: font is NULL");
return;
}
lv_font_glyph_dsc_t g;
bool g_ret = lv_font_get_glyph_dsc(font_p, &g, letter, '\0');
if(g_ret == false) {
/*Add warning if the dsc is not found
*but do not print warning for non printable ASCII chars (e.g. '\n')*/
if(letter >= 0x20 &&
letter != 0xf8ff && /*LV_SYMBOL_DUMMY*/
letter != 0x200c) { /*ZERO WIDTH NON-JOINER*/
LV_LOG_WARN("lv_draw_letter: glyph dsc. not found for U+%X", (unsigned int)letter);
}
return;
}
/*Don't draw anything if the character is empty. E.g. space*/
if((g.box_h == 0) || (g.box_w == 0)) return;
int32_t pos_x = pos_p->x + g.ofs_x;
int32_t pos_y = pos_p->y + (font_p->line_height - font_p->base_line) - g.box_h - g.ofs_y;
/*If the letter is completely out of mask don't draw it*/
if(pos_x + g.box_w < clip_area->x1 ||
pos_x > clip_area->x2 ||
pos_y + g.box_h < clip_area->y1 ||
pos_y > clip_area->y2) {
return;
}
const uint8_t * map_p = lv_font_get_glyph_bitmap(font_p, letter);
if(map_p == NULL) {
LV_LOG_WARN("lv_draw_letter: character's bitmap not found");
return;
}
if(font_p->subpx) {
#if LV_DRAW_COMPLEX && LV_USE_FONT_SUBPX
draw_letter_subpx(pos_x, pos_y, &g, clip_area, map_p, color, opa, blend_mode);
#else
LV_LOG_WARN("Can't draw sub-pixel rendered letter because LV_USE_FONT_SUBPX == 0 in lv_conf.h");
#endif
}
else {
draw_letter_normal(pos_x, pos_y, &g, clip_area, map_p, color, opa, blend_mode);
}
}
LV_ATTRIBUTE_FAST_MEM static void draw_letter_normal(lv_coord_t pos_x, lv_coord_t pos_y, lv_font_glyph_dsc_t * g,
const lv_area_t * clip_area,
const uint8_t * map_p, lv_color_t color, lv_opa_t opa, lv_blend_mode_t blend_mode)
{
const uint8_t * bpp_opa_table_p;
uint32_t bitmask_init;
uint32_t bitmask;
uint32_t bpp = g->bpp;
uint32_t shades;
if(bpp == 3) bpp = 4;
switch(bpp) {
case 1:
bpp_opa_table_p = _lv_bpp1_opa_table;
bitmask_init = 0x80;
shades = 2;
break;
case 2:
bpp_opa_table_p = _lv_bpp2_opa_table;
bitmask_init = 0xC0;
shades = 4;
break;
case 4:
bpp_opa_table_p = _lv_bpp4_opa_table;
bitmask_init = 0xF0;
shades = 16;
break;
case 8:
bpp_opa_table_p = _lv_bpp8_opa_table;
bitmask_init = 0xFF;
shades = 256;
break; /*No opa table, pixel value will be used directly*/
default:
LV_LOG_WARN("lv_draw_letter: invalid bpp");
return; /*Invalid bpp. Can't render the letter*/
}
static lv_opa_t opa_table[256];
static lv_opa_t prev_opa = LV_OPA_TRANSP;
static uint32_t prev_bpp = 0;
if(opa < LV_OPA_MAX) {
if(prev_opa != opa || prev_bpp != bpp) {
uint32_t i;
for(i = 0; i < shades; i++) {
opa_table[i] = bpp_opa_table_p[i] == LV_OPA_COVER ? opa : ((bpp_opa_table_p[i] * opa) >> 8);
}
}
bpp_opa_table_p = opa_table;
prev_opa = opa;
prev_bpp = bpp;
}
int32_t col, row;
int32_t box_w = g->box_w;
int32_t box_h = g->box_h;
int32_t width_bit = box_w * bpp; /*Letter width in bits*/
/*Calculate the col/row start/end on the map*/
int32_t col_start = pos_x >= clip_area->x1 ? 0 : clip_area->x1 - pos_x;
int32_t col_end = pos_x + box_w <= clip_area->x2 ? box_w : clip_area->x2 - pos_x + 1;
int32_t row_start = pos_y >= clip_area->y1 ? 0 : clip_area->y1 - pos_y;
int32_t row_end = pos_y + box_h <= clip_area->y2 ? box_h : clip_area->y2 - pos_y + 1;
/*Move on the map too*/
uint32_t bit_ofs = (row_start * width_bit) + (col_start * bpp);
map_p += bit_ofs >> 3;
uint8_t letter_px;
uint32_t col_bit;
col_bit = bit_ofs & 0x7; /*"& 0x7" equals to "% 8" just faster*/
lv_coord_t hor_res = lv_disp_get_hor_res(_lv_refr_get_disp_refreshing());
uint32_t mask_buf_size = box_w * box_h > hor_res ? hor_res : box_w * box_h;
lv_opa_t * mask_buf = lv_mem_buf_get(mask_buf_size);
int32_t mask_p = 0;
lv_area_t fill_area;
fill_area.x1 = col_start + pos_x;
fill_area.x2 = col_end + pos_x - 1;
fill_area.y1 = row_start + pos_y;
fill_area.y2 = fill_area.y1;
#if LV_DRAW_COMPLEX
bool mask_any = lv_draw_mask_is_any(&fill_area);
#endif
uint32_t col_bit_max = 8 - bpp;
uint32_t col_bit_row_ofs = (box_w + col_start - col_end) * bpp;
for(row = row_start ; row < row_end; row++) {
#if LV_DRAW_COMPLEX
int32_t mask_p_start = mask_p;
#endif
bitmask = bitmask_init >> col_bit;
for(col = col_start; col < col_end; col++) {
/*Load the pixel's opacity into the mask*/
letter_px = (*map_p & bitmask) >> (col_bit_max - col_bit);
if(letter_px) {
mask_buf[mask_p] = bpp_opa_table_p[letter_px];
}
else {
mask_buf[mask_p] = 0;
}
/*Go to the next column*/
if(col_bit < col_bit_max) {
col_bit += bpp;
bitmask = bitmask >> bpp;
}
else {
col_bit = 0;
bitmask = bitmask_init;
map_p++;
}
/*Next mask byte*/
mask_p++;
}
#if LV_DRAW_COMPLEX
/*Apply masks if any*/
if(mask_any) {
lv_draw_mask_res_t mask_res = lv_draw_mask_apply(mask_buf + mask_p_start, fill_area.x1, fill_area.y2,
lv_area_get_width(&fill_area));
if(mask_res == LV_DRAW_MASK_RES_TRANSP) {
lv_memset_00(mask_buf + mask_p_start, lv_area_get_width(&fill_area));
}
}
#endif
if((uint32_t) mask_p + (col_end - col_start) < mask_buf_size) {
fill_area.y2 ++;
}
else {
_lv_blend_fill(clip_area, &fill_area,
color, mask_buf, LV_DRAW_MASK_RES_CHANGED, LV_OPA_COVER,
blend_mode);
fill_area.y1 = fill_area.y2 + 1;
fill_area.y2 = fill_area.y1;
mask_p = 0;
}
col_bit += col_bit_row_ofs;
map_p += (col_bit >> 3);
col_bit = col_bit & 0x7;
}
/*Flush the last part*/
if(fill_area.y1 != fill_area.y2) {
fill_area.y2--;
_lv_blend_fill(clip_area, &fill_area,
color, mask_buf, LV_DRAW_MASK_RES_CHANGED, LV_OPA_COVER,
blend_mode);
mask_p = 0;
}
lv_mem_buf_release(mask_buf);
}
#if LV_DRAW_COMPLEX && LV_USE_FONT_SUBPX
static void draw_letter_subpx(lv_coord_t pos_x, lv_coord_t pos_y, lv_font_glyph_dsc_t * g, const lv_area_t * clip_area,
const uint8_t * map_p, lv_color_t color, lv_opa_t opa, lv_blend_mode_t blend_mode)
{
const uint8_t * bpp_opa_table;
uint32_t bitmask_init;
uint32_t bitmask;
uint32_t bpp = g->bpp;
if(bpp == 3) bpp = 4;
switch(bpp) {
case 1:
bpp_opa_table = _lv_bpp1_opa_table;
bitmask_init = 0x80;
break;
case 2:
bpp_opa_table = _lv_bpp2_opa_table;
bitmask_init = 0xC0;
break;
case 4:
bpp_opa_table = _lv_bpp4_opa_table;
bitmask_init = 0xF0;
break;
case 8:
bpp_opa_table = _lv_bpp8_opa_table;
bitmask_init = 0xFF;
break; /*No opa table, pixel value will be used directly*/
default:
LV_LOG_WARN("lv_draw_letter: invalid bpp not found");
return; /*Invalid bpp. Can't render the letter*/
}
int32_t col, row;
int32_t box_w = g->box_w;
int32_t box_h = g->box_h;
int32_t width_bit = box_w * bpp; /*Letter width in bits*/
/*Calculate the col/row start/end on the map*/
int32_t col_start = pos_x >= clip_area->x1 ? 0 : (clip_area->x1 - pos_x) * 3;
int32_t col_end = pos_x + box_w / 3 <= clip_area->x2 ? box_w : (clip_area->x2 - pos_x + 1) * 3;
int32_t row_start = pos_y >= clip_area->y1 ? 0 : clip_area->y1 - pos_y;
int32_t row_end = pos_y + box_h <= clip_area->y2 ? box_h : clip_area->y2 - pos_y + 1;
/*Move on the map too*/
int32_t bit_ofs = (row_start * width_bit) + (col_start * bpp);
map_p += bit_ofs >> 3;
uint8_t letter_px;
lv_opa_t px_opa;
int32_t col_bit;
col_bit = bit_ofs & 0x7; /*"& 0x7" equals to "% 8" just faster*/
lv_area_t map_area;
map_area.x1 = col_start / 3 + pos_x;
map_area.x2 = col_end / 3 + pos_x - 1;
map_area.y1 = row_start + pos_y;
map_area.y2 = map_area.y1;
if(map_area.x2 <= map_area.x1) return;
int32_t mask_buf_size = box_w * box_h > _LV_MASK_BUF_MAX_SIZE ? _LV_MASK_BUF_MAX_SIZE : g->box_w * g->box_h;
lv_opa_t * mask_buf = lv_mem_buf_get(mask_buf_size);
int32_t mask_p = 0;
lv_color_t * color_buf = lv_mem_buf_get(mask_buf_size * sizeof(lv_color_t));
lv_disp_t * disp = _lv_refr_get_disp_refreshing();
lv_disp_draw_buf_t * draw_buf = lv_disp_get_draw_buf(disp);
int32_t disp_buf_width = lv_area_get_width(&draw_buf->area);
lv_color_t * disp_buf_buf_tmp = draw_buf->buf_act;
/*Set a pointer on draw_buf to the first pixel of the letter*/
disp_buf_buf_tmp += ((pos_y - draw_buf->area.y1) * disp_buf_width) + pos_x - draw_buf->area.x1;
/*If the letter is partially out of mask the move there on draw_buf*/
disp_buf_buf_tmp += (row_start * disp_buf_width) + col_start / 3;
bool mask_any = lv_draw_mask_is_any(&map_area);
uint8_t font_rgb[3];
#if LV_COLOR_16_SWAP == 0
uint8_t txt_rgb[3] = {color.ch.red, color.ch.green, color.ch.blue};
#else
uint8_t txt_rgb[3] = {color.ch.red, (color.ch.green_h << 3) + color.ch.green_l, color.ch.blue};
#endif
for(row = row_start ; row < row_end; row++) {
uint32_t subpx_cnt = 0;
bitmask = bitmask_init >> col_bit;
int32_t mask_p_start = mask_p;
for(col = col_start; col < col_end; col++) {
/*Load the pixel's opacity into the mask*/
letter_px = (*map_p & bitmask) >> (8 - col_bit - bpp);
if(letter_px != 0) {
if(opa == LV_OPA_COVER) {
px_opa = bpp == 8 ? letter_px : bpp_opa_table[letter_px];
}
else {
px_opa = bpp == 8 ? (uint32_t)((uint32_t)letter_px * opa) >> 8
: (uint32_t)((uint32_t)bpp_opa_table[letter_px] * opa) >> 8;
}
}
else {
px_opa = 0;
}
font_rgb[subpx_cnt] = px_opa;
subpx_cnt ++;
if(subpx_cnt == 3) {
subpx_cnt = 0;
lv_color_t res_color;
#if LV_COLOR_16_SWAP == 0
uint8_t bg_rgb[3] = {disp_buf_buf_tmp->ch.red, disp_buf_buf_tmp->ch.green, disp_buf_buf_tmp->ch.blue};
#else
uint8_t bg_rgb[3] = {disp_buf_buf_tmp->ch.red,
(disp_buf_buf_tmp->ch.green_h << 3) + disp_buf_buf_tmp->ch.green_l,
disp_buf_buf_tmp->ch.blue
};
#endif
#if LV_FONT_SUBPX_BGR
res_color.ch.blue = (uint32_t)((uint32_t)txt_rgb[0] * font_rgb[0] + (bg_rgb[0] * (255 - font_rgb[0]))) >> 8;
res_color.ch.red = (uint32_t)((uint32_t)txt_rgb[2] * font_rgb[2] + (bg_rgb[2] * (255 - font_rgb[2]))) >> 8;
#else
res_color.ch.red = (uint32_t)((uint16_t)txt_rgb[0] * font_rgb[0] + (bg_rgb[0] * (255 - font_rgb[0]))) >> 8;
res_color.ch.blue = (uint32_t)((uint16_t)txt_rgb[2] * font_rgb[2] + (bg_rgb[2] * (255 - font_rgb[2]))) >> 8;
#endif
#if LV_COLOR_16_SWAP == 0
res_color.ch.green = (uint32_t)((uint32_t)txt_rgb[1] * font_rgb[1] + (bg_rgb[1] * (255 - font_rgb[1]))) >> 8;
#else
uint8_t green = (uint32_t)((uint32_t)txt_rgb[1] * font_rgb[1] + (bg_rgb[1] * (255 - font_rgb[1]))) >> 8;
res_color.ch.green_h = green >> 3;
res_color.ch.green_l = green & 0x7;
#endif
#if LV_COLOR_DEPTH == 32
res_color.ch.alpha = 0xff;
#endif
if(font_rgb[0] == 0 && font_rgb[1] == 0 && font_rgb[2] == 0) mask_buf[mask_p] = LV_OPA_TRANSP;
else mask_buf[mask_p] = LV_OPA_COVER;
color_buf[mask_p] = res_color;
/*Next mask byte*/
mask_p++;
disp_buf_buf_tmp++;
}
/*Go to the next column*/
if(col_bit < (int32_t)(8 - bpp)) {
col_bit += bpp;
bitmask = bitmask >> bpp;
}
else {
col_bit = 0;
bitmask = bitmask_init;
map_p++;
}
}
/*Apply masks if any*/
if(mask_any) {
lv_draw_mask_res_t mask_res = lv_draw_mask_apply(mask_buf + mask_p_start, map_area.x1, map_area.y2,
lv_area_get_width(&map_area));
if(mask_res == LV_DRAW_MASK_RES_TRANSP) {
lv_memset_00(mask_buf + mask_p_start, lv_area_get_width(&map_area));
}
}
if((int32_t) mask_p + (col_end - col_start) < mask_buf_size) {
map_area.y2 ++;
}
else {
_lv_blend_map(clip_area, &map_area, color_buf, mask_buf, LV_DRAW_MASK_RES_CHANGED, opa, blend_mode);
map_area.y1 = map_area.y2 + 1;
map_area.y2 = map_area.y1;
mask_p = 0;
}
col_bit += ((box_w - col_end) + col_start) * bpp;
map_p += (col_bit >> 3);
col_bit = col_bit & 0x7;
/*Next row in draw_buf*/
disp_buf_buf_tmp += disp_buf_width - (col_end - col_start) / 3;
}
/*Flush the last part*/
if(map_area.y1 != map_area.y2) {
map_area.y2--;
_lv_blend_map(clip_area, &map_area, color_buf, mask_buf, LV_DRAW_MASK_RES_CHANGED, opa, blend_mode);
}
lv_mem_buf_release(mask_buf);
lv_mem_buf_release(color_buf);
}
#endif /*LV_DRAW_COMPLEX && LV_USE_FONT_SUBPX*/
#endif /*LV_USE_EXTERNAL_RENDERER*/
/**
* Convert a hexadecimal characters to a number (0..15)
* @param hex Pointer to a hexadecimal character (0..9, A..F)
* @return the numerical value of `hex` or 0 on error
*/
static uint8_t hex_char_to_num(char hex)
{
uint8_t result = 0;
if(hex >= '0' && hex <= '9') {
result = hex - '0';
}
else {
if(hex >= 'a') hex -= 'a' - 'A'; /*Convert to upper case*/
switch(hex) {
case 'A':
result = 10;
break;
case 'B':
result = 11;
break;
case 'C':
result = 12;
break;
case 'D':
result = 13;
break;
case 'E':
result = 14;
break;
case 'F':
result = 15;
break;
default:
result = 0;
break;
}
}
return result;
}
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/draw/lv_draw_label.c | C | apache-2.0 | 31,714 |
/**
* @file lv_draw_label.h
*
*/
#ifndef LV_DRAW_LABEL_H
#define LV_DRAW_LABEL_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "lv_draw_blend.h"
#include "../misc/lv_bidi.h"
#include "../misc/lv_txt.h"
#include "../misc/lv_color.h"
/*********************
* DEFINES
*********************/
#define LV_DRAW_LABEL_NO_TXT_SEL (0xFFFF)
/**********************
* TYPEDEFS
**********************/
typedef struct {
const lv_font_t * font;
uint32_t sel_start;
uint32_t sel_end;
lv_color_t color;
lv_color_t sel_color;
lv_color_t sel_bg_color;
lv_coord_t line_space;
lv_coord_t letter_space;
lv_coord_t ofs_x;
lv_coord_t ofs_y;
lv_opa_t opa;
lv_base_dir_t bidi_dir;
lv_text_align_t align;
lv_text_flag_t flag;
lv_text_decor_t decor : 3;
lv_blend_mode_t blend_mode: 3;
} lv_draw_label_dsc_t;
/** Store some info to speed up drawing of very large texts
* It takes a lot of time to get the first visible character because
* all the previous characters needs to be checked to calculate the positions.
* This structure stores an earlier (e.g. at -1000 px) coordinate and the index of that line.
* Therefore the calculations can start from here.*/
typedef struct _lv_draw_label_hint_t {
/** Index of the line at `y` coordinate*/
int32_t line_start;
/** Give the `y` coordinate of the first letter at `line start` index. Relative to the label's coordinates*/
int32_t y;
/** The 'y1' coordinate of the label when the hint was saved.
* Used to invalidate the hint if the label has moved too much.*/
int32_t coord_y;
} lv_draw_label_hint_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
//! @cond Doxygen_Suppress
LV_ATTRIBUTE_FAST_MEM void lv_draw_label_dsc_init(lv_draw_label_dsc_t * dsc);
/**
* Write a text
* @param coords coordinates of the label
* @param mask the label will be drawn only in this area
* @param dsc pointer to draw descriptor
* @param txt `\0` terminated text to write
* @param hint pointer to a `lv_draw_label_hint_t` variable.
* It is managed by the draw to speed up the drawing of very long texts (thousands of lines).
*/
LV_ATTRIBUTE_FAST_MEM void lv_draw_label(const lv_area_t * coords, const lv_area_t * mask,
const lv_draw_label_dsc_t * dsc,
const char * txt, lv_draw_label_hint_t * hint);
LV_ATTRIBUTE_FAST_MEM void lv_draw_letter(const lv_point_t * pos_p, const lv_area_t * clip_area,
const lv_font_t * font_p,
uint32_t letter, lv_color_t color, lv_opa_t opa, lv_blend_mode_t blend_mode);
//! @endcond
/***********************
* GLOBAL VARIABLES
***********************/
extern const uint8_t _lv_bpp2_opa_table[];
extern const uint8_t _lv_bpp3_opa_table[];
extern const uint8_t _lv_bpp1_opa_table[];
extern const uint8_t _lv_bpp4_opa_table[];
extern const uint8_t _lv_bpp8_opa_table[];
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_DRAW_LABEL_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/draw/lv_draw_label.h | C | apache-2.0 | 3,227 |
/**
* @file lv_draw_line.c
*
*/
/*********************
* INCLUDES
*********************/
#include <stdbool.h>
#include "lv_draw_mask.h"
#include "lv_draw_blend.h"
#include "../core/lv_refr.h"
#include "../misc/lv_math.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
LV_ATTRIBUTE_FAST_MEM static void draw_line_skew(const lv_point_t * point1, const lv_point_t * point2,
const lv_area_t * clip,
const lv_draw_line_dsc_t * dsc);
LV_ATTRIBUTE_FAST_MEM static void draw_line_hor(const lv_point_t * point1, const lv_point_t * point2,
const lv_area_t * clip,
const lv_draw_line_dsc_t * dsc);
LV_ATTRIBUTE_FAST_MEM static void draw_line_ver(const lv_point_t * point1, const lv_point_t * point2,
const lv_area_t * clip,
const lv_draw_line_dsc_t * dsc);
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
LV_ATTRIBUTE_FAST_MEM void lv_draw_line_dsc_init(lv_draw_line_dsc_t * dsc)
{
lv_memset_00(dsc, sizeof(lv_draw_line_dsc_t));
dsc->width = 1;
dsc->opa = LV_OPA_COVER;
dsc->color = lv_color_black();
}
/**
* Draw a line
* @param point1 first point of the line
* @param point2 second point of the line
* @param clip the line will be drawn only in this area
* @param dsc pointer to an initialized `lv_draw_line_dsc_t` variable
*/
LV_ATTRIBUTE_FAST_MEM void lv_draw_line(const lv_point_t * point1, const lv_point_t * point2, const lv_area_t * clip,
const lv_draw_line_dsc_t * dsc)
{
if(dsc->width == 0) return;
if(dsc->opa <= LV_OPA_MIN) return;
if(point1->x == point2->x && point1->y == point2->y) return;
lv_area_t clip_line;
clip_line.x1 = LV_MIN(point1->x, point2->x) - dsc->width / 2;
clip_line.x2 = LV_MAX(point1->x, point2->x) + dsc->width / 2;
clip_line.y1 = LV_MIN(point1->y, point2->y) - dsc->width / 2;
clip_line.y2 = LV_MAX(point1->y, point2->y) + dsc->width / 2;
bool is_common;
is_common = _lv_area_intersect(&clip_line, &clip_line, clip);
if(!is_common) return;
if(point1->y == point2->y) draw_line_hor(point1, point2, &clip_line, dsc);
else if(point1->x == point2->x) draw_line_ver(point1, point2, &clip_line, dsc);
else draw_line_skew(point1, point2, &clip_line, dsc);
if(dsc->round_end || dsc->round_start) {
lv_draw_rect_dsc_t cir_dsc;
lv_draw_rect_dsc_init(&cir_dsc);
cir_dsc.bg_color = dsc->color;
cir_dsc.radius = LV_RADIUS_CIRCLE;
cir_dsc.bg_opa = dsc->opa;
int32_t r = (dsc->width >> 1);
int32_t r_corr = (dsc->width & 1) ? 0 : 1;
lv_area_t cir_area;
if(dsc->round_start) {
cir_area.x1 = point1->x - r;
cir_area.y1 = point1->y - r;
cir_area.x2 = point1->x + r - r_corr;
cir_area.y2 = point1->y + r - r_corr ;
lv_draw_rect(&cir_area, clip, &cir_dsc);
}
if(dsc->round_end) {
cir_area.x1 = point2->x - r;
cir_area.y1 = point2->y - r;
cir_area.x2 = point2->x + r - r_corr;
cir_area.y2 = point2->y + r - r_corr ;
lv_draw_rect(&cir_area, clip, &cir_dsc);
}
}
}
/**********************
* STATIC FUNCTIONS
**********************/
LV_ATTRIBUTE_FAST_MEM static void draw_line_hor(const lv_point_t * point1, const lv_point_t * point2,
const lv_area_t * clip,
const lv_draw_line_dsc_t * dsc)
{
lv_opa_t opa = dsc->opa;
int32_t w = dsc->width - 1;
int32_t w_half0 = w >> 1;
int32_t w_half1 = w_half0 + (w & 0x1); /*Compensate rounding error*/
lv_area_t draw_area;
draw_area.x1 = LV_MIN(point1->x, point2->x);
draw_area.x2 = LV_MAX(point1->x, point2->x) - 1;
draw_area.y1 = point1->y - w_half1;
draw_area.y2 = point1->y + w_half0;
bool dashed = dsc->dash_gap && dsc->dash_width ? true : false;
bool simple_mode = true;
if(lv_draw_mask_is_any(&draw_area)) simple_mode = false;
else if(dashed) simple_mode = false;
/*If there is no mask then simply draw a rectangle*/
if(simple_mode) {
_lv_blend_fill(clip, &draw_area,
dsc->color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa,
dsc->blend_mode);
}
#if LV_DRAW_COMPLEX
/*If there other mask apply it*/
else {
lv_disp_t * disp = _lv_refr_get_disp_refreshing();
lv_disp_draw_buf_t * draw_buf = lv_disp_get_draw_buf(disp);
const lv_area_t * disp_area = &draw_buf->area;
/*Get clipped fill area which is the real draw area.
*It is always the same or inside `fill_area`*/
bool is_common;
is_common = _lv_area_intersect(&draw_area, clip, &draw_area);
if(!is_common) return;
/*Now `draw_area` has absolute coordinates.
*Make it relative to `disp_area` to simplify draw to `disp_buf`*/
draw_area.x1 -= disp_area->x1;
draw_area.y1 -= disp_area->y1;
draw_area.x2 -= disp_area->x1;
draw_area.y2 -= disp_area->y1;
int32_t draw_area_w = lv_area_get_width(&draw_area);
lv_area_t fill_area;
fill_area.x1 = draw_area.x1 + disp_area->x1;
fill_area.x2 = draw_area.x2 + disp_area->x1;
fill_area.y1 = draw_area.y1 + disp_area->y1;
fill_area.y2 = fill_area.y1;
lv_coord_t dash_start = 0;
if(dashed) {
dash_start = (draw_buf->area.x1 + draw_area.x1) % (dsc->dash_gap + dsc->dash_width);
}
lv_opa_t * mask_buf = lv_mem_buf_get(draw_area_w);
int32_t h;
for(h = draw_area.y1; h <= draw_area.y2; h++) {
lv_memset_ff(mask_buf, draw_area_w);
lv_draw_mask_res_t mask_res = lv_draw_mask_apply(mask_buf, draw_buf->area.x1 + draw_area.x1, draw_buf->area.y1 + h,
draw_area_w);
if(dashed) {
if(mask_res != LV_DRAW_MASK_RES_TRANSP) {
lv_coord_t dash_cnt = dash_start;
lv_coord_t i;
for(i = 0; i < draw_area_w; i++, dash_cnt++) {
if(dash_cnt <= dsc->dash_width) {
int16_t diff = dsc->dash_width - dash_cnt;
i += diff;
dash_cnt += diff;
}
else if(dash_cnt >= dsc->dash_gap + dsc->dash_width) {
dash_cnt = 0;
}
else {
mask_buf[i] = 0x00;
}
}
mask_res = LV_DRAW_MASK_RES_CHANGED;
}
}
_lv_blend_fill(clip, &fill_area,
dsc->color, mask_buf, mask_res, dsc->opa,
dsc->blend_mode);
fill_area.y1++;
fill_area.y2++;
}
lv_mem_buf_release(mask_buf);
}
#endif /*LV_DRAW_COMPLEX*/
}
LV_ATTRIBUTE_FAST_MEM static void draw_line_ver(const lv_point_t * point1, const lv_point_t * point2,
const lv_area_t * clip,
const lv_draw_line_dsc_t * dsc)
{
lv_opa_t opa = dsc->opa;
int32_t w = dsc->width - 1;
int32_t w_half0 = w >> 1;
int32_t w_half1 = w_half0 + (w & 0x1); /*Compensate rounding error*/
lv_area_t draw_area;
draw_area.x1 = point1->x - w_half1;
draw_area.x2 = point1->x + w_half0;
draw_area.y1 = LV_MIN(point1->y, point2->y);
draw_area.y2 = LV_MAX(point1->y, point2->y) - 1;
bool dashed = dsc->dash_gap && dsc->dash_width ? true : false;
bool simple_mode = true;
if(lv_draw_mask_is_any(&draw_area)) simple_mode = false;
else if(dashed) simple_mode = false;
/*If there is no mask then simply draw a rectangle*/
if(simple_mode) {
_lv_blend_fill(clip, &draw_area,
dsc->color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa,
dsc->blend_mode);
}
#if LV_DRAW_COMPLEX
/*If there other mask apply it*/
else {
lv_disp_t * disp = _lv_refr_get_disp_refreshing();
lv_disp_draw_buf_t * draw_buf = lv_disp_get_draw_buf(disp);
const lv_area_t * disp_area = &draw_buf->area;
/*Get clipped fill area which is the real draw area.
*It is always the same or inside `fill_area`*/
bool is_common;
is_common = _lv_area_intersect(&draw_area, clip, &draw_area);
if(!is_common) return;
/*Now `draw_area` has absolute coordinates.
*Make it relative to `disp_area` to simplify draw to `disp_buf`*/
draw_area.x1 -= draw_buf->area.x1;
draw_area.y1 -= draw_buf->area.y1;
draw_area.x2 -= draw_buf->area.x1;
draw_area.y2 -= draw_buf->area.y1;
int32_t draw_area_w = lv_area_get_width(&draw_area);
lv_area_t fill_area;
fill_area.x1 = draw_area.x1 + disp_area->x1;
fill_area.x2 = draw_area.x2 + disp_area->x1;
fill_area.y1 = draw_area.y1 + disp_area->y1;
fill_area.y2 = fill_area.y1;
lv_opa_t * mask_buf = lv_mem_buf_get(draw_area_w);
lv_coord_t dash_start = 0;
if(dashed) {
dash_start = (draw_buf->area.y1 + draw_area.y1) % (dsc->dash_gap + dsc->dash_width);
}
lv_coord_t dash_cnt = dash_start;
int32_t h;
for(h = draw_area.y1; h <= draw_area.y2; h++) {
lv_memset_ff(mask_buf, draw_area_w);
lv_draw_mask_res_t mask_res = lv_draw_mask_apply(mask_buf, draw_buf->area.x1 + draw_area.x1, draw_buf->area.y1 + h,
draw_area_w);
if(dashed) {
if(mask_res != LV_DRAW_MASK_RES_TRANSP) {
if(dash_cnt > dsc->dash_width) {
mask_res = LV_DRAW_MASK_RES_TRANSP;
}
if(dash_cnt >= dsc->dash_gap + dsc->dash_width) {
dash_cnt = 0;
}
}
dash_cnt ++;
}
_lv_blend_fill(clip, &fill_area,
dsc->color, mask_buf, mask_res, dsc->opa,
LV_BLEND_MODE_NORMAL);
fill_area.y1++;
fill_area.y2++;
}
lv_mem_buf_release(mask_buf);
}
#endif /*LV_DRAW_COMPLEX*/
}
LV_ATTRIBUTE_FAST_MEM static void draw_line_skew(const lv_point_t * point1, const lv_point_t * point2,
const lv_area_t * clip,
const lv_draw_line_dsc_t * dsc)
{
#if LV_DRAW_COMPLEX
/*Keep the great y in p1*/
lv_point_t p1;
lv_point_t p2;
if(point1->y < point2->y) {
p1.y = point1->y;
p2.y = point2->y;
p1.x = point1->x;
p2.x = point2->x;
}
else {
p1.y = point2->y;
p2.y = point1->y;
p1.x = point2->x;
p2.x = point1->x;
}
int32_t xdiff = p2.x - p1.x;
int32_t ydiff = p2.y - p1.y;
bool flat = LV_ABS(xdiff) > LV_ABS(ydiff) ? true : false;
static const uint8_t wcorr[] = {
128, 128, 128, 129, 129, 130, 130, 131,
132, 133, 134, 135, 137, 138, 140, 141,
143, 145, 147, 149, 151, 153, 155, 158,
160, 162, 165, 167, 170, 173, 175, 178,
181,
};
int32_t w = dsc->width;
int32_t wcorr_i = 0;
if(flat) wcorr_i = (LV_ABS(ydiff) << 5) / LV_ABS(xdiff);
else wcorr_i = (LV_ABS(xdiff) << 5) / LV_ABS(ydiff);
w = (w * wcorr[wcorr_i] + 63) >> 7; /*+ 63 for rounding*/
int32_t w_half0 = w >> 1;
int32_t w_half1 = w_half0 + (w & 0x1); /*Compensate rounding error*/
lv_area_t draw_area;
draw_area.x1 = LV_MIN(p1.x, p2.x) - w;
draw_area.x2 = LV_MAX(p1.x, p2.x) + w;
draw_area.y1 = LV_MIN(p1.y, p2.y) - w;
draw_area.y2 = LV_MAX(p1.y, p2.y) + w;
/*Get the union of `coords` and `clip`*/
/*`clip` is already truncated to the `draw_buf` size
*in 'lv_refr_area' function*/
bool is_common = _lv_area_intersect(&draw_area, &draw_area, clip);
if(is_common == false) return;
lv_draw_mask_line_param_t mask_left_param;
lv_draw_mask_line_param_t mask_right_param;
lv_draw_mask_line_param_t mask_top_param;
lv_draw_mask_line_param_t mask_bottom_param;
if(flat) {
if(xdiff > 0) {
lv_draw_mask_line_points_init(&mask_left_param, p1.x, p1.y - w_half0, p2.x, p2.y - w_half0,
LV_DRAW_MASK_LINE_SIDE_LEFT);
lv_draw_mask_line_points_init(&mask_right_param, p1.x, p1.y + w_half1, p2.x, p2.y + w_half1,
LV_DRAW_MASK_LINE_SIDE_RIGHT);
}
else {
lv_draw_mask_line_points_init(&mask_left_param, p1.x, p1.y + w_half1, p2.x, p2.y + w_half1,
LV_DRAW_MASK_LINE_SIDE_LEFT);
lv_draw_mask_line_points_init(&mask_right_param, p1.x, p1.y - w_half0, p2.x, p2.y - w_half0,
LV_DRAW_MASK_LINE_SIDE_RIGHT);
}
}
else {
lv_draw_mask_line_points_init(&mask_left_param, p1.x + w_half1, p1.y, p2.x + w_half1, p2.y,
LV_DRAW_MASK_LINE_SIDE_LEFT);
lv_draw_mask_line_points_init(&mask_right_param, p1.x - w_half0, p1.y, p2.x - w_half0, p2.y,
LV_DRAW_MASK_LINE_SIDE_RIGHT);
}
/*Use the normal vector for the endings*/
int16_t mask_left_id = lv_draw_mask_add(&mask_left_param, NULL);
int16_t mask_right_id = lv_draw_mask_add(&mask_right_param, NULL);
int16_t mask_top_id = LV_MASK_ID_INV;
int16_t mask_bottom_id = LV_MASK_ID_INV;
if(!dsc->raw_end) {
lv_draw_mask_line_points_init(&mask_top_param, p1.x, p1.y, p1.x - ydiff, p1.y + xdiff, LV_DRAW_MASK_LINE_SIDE_BOTTOM);
lv_draw_mask_line_points_init(&mask_bottom_param, p2.x, p2.y, p2.x - ydiff, p2.y + xdiff, LV_DRAW_MASK_LINE_SIDE_TOP);
mask_top_id = lv_draw_mask_add(&mask_top_param, NULL);
mask_bottom_id = lv_draw_mask_add(&mask_bottom_param, NULL);
}
lv_disp_t * disp = _lv_refr_get_disp_refreshing();
lv_disp_draw_buf_t * draw_buf = lv_disp_get_draw_buf(disp);
const lv_area_t * disp_area = &draw_buf->area;
/*Store the coordinates of the `draw_a` relative to the draw_buf*/
draw_area.x1 -= disp_area->x1;
draw_area.y1 -= disp_area->y1;
draw_area.x2 -= disp_area->x1;
draw_area.y2 -= disp_area->y1;
/*The real draw area is around the line.
*It's easy to calculate with steep lines, but the area can be very wide with very flat lines.
*So deal with it only with steep lines.*/
int32_t draw_area_w = lv_area_get_width(&draw_area);
/*Draw the background line by line*/
int32_t h;
uint32_t hor_res = (uint32_t)lv_disp_get_hor_res(disp);
size_t mask_buf_size = LV_MIN(lv_area_get_size(&draw_area), hor_res);
lv_opa_t * mask_buf = lv_mem_buf_get(mask_buf_size);
lv_area_t fill_area;
fill_area.x1 = draw_area.x1 + disp_area->x1;
fill_area.x2 = draw_area.x2 + disp_area->x1;
fill_area.y1 = draw_area.y1 + disp_area->y1;
fill_area.y2 = fill_area.y1;
int32_t x = draw_buf->area.x1 + draw_area.x1;
uint32_t mask_p = 0;
lv_memset_ff(mask_buf, mask_buf_size);
/*Fill the first row with 'color'*/
for(h = draw_area.y1 + disp_area->y1; h <= draw_area.y2 + disp_area->y1; h++) {
lv_draw_mask_res_t mask_res = lv_draw_mask_apply(&mask_buf[mask_p], x, h, draw_area_w);
if(mask_res == LV_DRAW_MASK_RES_TRANSP) {
lv_memset_00(&mask_buf[mask_p], draw_area_w);
}
mask_p += draw_area_w;
if((uint32_t) mask_p + draw_area_w < mask_buf_size) {
fill_area.y2 ++;
}
else {
_lv_blend_fill(&fill_area, clip,
dsc->color, mask_buf, LV_DRAW_MASK_RES_CHANGED, dsc->opa,
dsc->blend_mode);
fill_area.y1 = fill_area.y2 + 1;
fill_area.y2 = fill_area.y1;
mask_p = 0;
lv_memset_ff(mask_buf, mask_buf_size);
}
}
/*Flush the last part*/
if(fill_area.y1 != fill_area.y2) {
fill_area.y2--;
_lv_blend_fill(&fill_area, clip,
dsc->color, mask_buf, LV_DRAW_MASK_RES_CHANGED, dsc->opa,
dsc->blend_mode);
}
lv_mem_buf_release(mask_buf);
lv_draw_mask_free_param(&mask_left_param);
lv_draw_mask_free_param(&mask_right_param);
if(mask_top_id != LV_MASK_ID_INV) lv_draw_mask_free_param(&mask_top_param);
if(mask_bottom_id != LV_MASK_ID_INV) lv_draw_mask_free_param(&mask_bottom_param);
lv_draw_mask_remove_id(mask_left_id);
lv_draw_mask_remove_id(mask_right_id);
lv_draw_mask_remove_id(mask_top_id);
lv_draw_mask_remove_id(mask_bottom_id);
#else
LV_UNUSED(point1);
LV_UNUSED(point2);
LV_UNUSED(clip);
LV_UNUSED(dsc);
LV_LOG_WARN("Can't draw skewed line with LV_DRAW_COMPLEX == 0");
#endif /*LV_DRAW_COMPLEX*/
}
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/draw/lv_draw_line.c | C | apache-2.0 | 17,879 |
/**
* @file lv_draw_line.h
*
*/
#ifndef LV_DRAW_LINE_H
#define LV_DRAW_LINE_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "lv_draw_blend.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
typedef struct {
lv_color_t color;
lv_coord_t width;
lv_coord_t dash_width;
lv_coord_t dash_gap;
lv_opa_t opa;
lv_blend_mode_t blend_mode : 2;
uint8_t round_start : 1;
uint8_t round_end : 1;
uint8_t raw_end : 1; /*Do not bother with perpendicular line ending if it's not visible for any reason*/
} lv_draw_line_dsc_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
//! @cond Doxygen_Suppress
/**
* Draw a line
* @param point1 first point of the line
* @param point2 second point of the line
* @param clip the line will be drawn only in this area
* @param dsc pointer to an initialized `lv_draw_line_dsc_t` variable
*/
LV_ATTRIBUTE_FAST_MEM void lv_draw_line(const lv_point_t * point1, const lv_point_t * point2, const lv_area_t * clip,
const lv_draw_line_dsc_t * dsc);
LV_ATTRIBUTE_FAST_MEM void lv_draw_line_dsc_init(lv_draw_line_dsc_t * dsc);
//! @endcond
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_DRAW_LINE_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/draw/lv_draw_line.h | C | apache-2.0 | 1,458 |
/**
* @file lv_mask.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_draw_mask.h"
#if LV_DRAW_COMPLEX
#include "../misc/lv_math.h"
#include "../misc/lv_log.h"
#include "../misc/lv_assert.h"
#include "../misc/lv_gc.h"
/*********************
* DEFINES
*********************/
#define CIRCLE_CACHE_LIFE_MAX 1000
#define CIRCLE_CACHE_AGING(life, r) life = LV_MIN(life + (r < 16 ? 1 : (r >> 4)), 1000)
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
LV_ATTRIBUTE_FAST_MEM static lv_draw_mask_res_t lv_draw_mask_line(lv_opa_t * mask_buf, lv_coord_t abs_x,
lv_coord_t abs_y, lv_coord_t len,
lv_draw_mask_line_param_t * param);
LV_ATTRIBUTE_FAST_MEM static lv_draw_mask_res_t lv_draw_mask_radius(lv_opa_t * mask_buf, lv_coord_t abs_x,
lv_coord_t abs_y, lv_coord_t len,
lv_draw_mask_radius_param_t * param);
LV_ATTRIBUTE_FAST_MEM static lv_draw_mask_res_t lv_draw_mask_angle(lv_opa_t * mask_buf, lv_coord_t abs_x,
lv_coord_t abs_y, lv_coord_t len,
lv_draw_mask_angle_param_t * param);
LV_ATTRIBUTE_FAST_MEM static lv_draw_mask_res_t lv_draw_mask_fade(lv_opa_t * mask_buf, lv_coord_t abs_x,
lv_coord_t abs_y, lv_coord_t len,
lv_draw_mask_fade_param_t * param);
LV_ATTRIBUTE_FAST_MEM static lv_draw_mask_res_t lv_draw_mask_map(lv_opa_t * mask_buf, lv_coord_t abs_x,
lv_coord_t abs_y, lv_coord_t len,
lv_draw_mask_map_param_t * param);
LV_ATTRIBUTE_FAST_MEM static lv_draw_mask_res_t line_mask_flat(lv_opa_t * mask_buf, lv_coord_t abs_x, lv_coord_t abs_y,
lv_coord_t len,
lv_draw_mask_line_param_t * p);
LV_ATTRIBUTE_FAST_MEM static lv_draw_mask_res_t line_mask_steep(lv_opa_t * mask_buf, lv_coord_t abs_x, lv_coord_t abs_y,
lv_coord_t len,
lv_draw_mask_line_param_t * p);
static void circ_init(lv_point_t * c, lv_coord_t * tmp, lv_coord_t radius);
static bool circ_cont(lv_point_t * c);
static void circ_next(lv_point_t * c, lv_coord_t * tmp);
static void circ_calc_aa4(_lv_draw_mask_radius_circle_dsc_t * c, lv_coord_t radius);
static lv_opa_t * get_next_line(_lv_draw_mask_radius_circle_dsc_t * c, lv_coord_t y, lv_coord_t * len,
lv_coord_t * x_start);
LV_ATTRIBUTE_FAST_MEM static inline lv_opa_t mask_mix(lv_opa_t mask_act, lv_opa_t mask_new);
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
/**
* Add a draw mask. Everything drawn after it (until removing the mask) will be affected by the mask.
* @param param an initialized mask parameter. Only the pointer is saved.
* @param custom_id a custom pointer to identify the mask. Used in `lv_draw_mask_remove_custom`.
* @return the an integer, the ID of the mask. Can be used in `lv_draw_mask_remove_id`.
*/
int16_t lv_draw_mask_add(void * param, void * custom_id)
{
/*Look for a free entry*/
uint8_t i;
for(i = 0; i < _LV_MASK_MAX_NUM; i++) {
if(LV_GC_ROOT(_lv_draw_mask_list[i]).param == NULL) break;
}
if(i >= _LV_MASK_MAX_NUM) {
LV_LOG_WARN("lv_mask_add: no place to add the mask");
return LV_MASK_ID_INV;
}
LV_GC_ROOT(_lv_draw_mask_list[i]).param = param;
LV_GC_ROOT(_lv_draw_mask_list[i]).custom_id = custom_id;
return i;
}
/**
* Apply the added buffers on a line. Used internally by the library's drawing routines.
* @param mask_buf store the result mask here. Has to be `len` byte long. Should be initialized with `0xFF`.
* @param abs_x absolute X coordinate where the line to calculate start
* @param abs_y absolute Y coordinate where the line to calculate start
* @param len length of the line to calculate (in pixel count)
* @return One of these values:
* - `LV_DRAW_MASK_RES_FULL_TRANSP`: the whole line is transparent. `mask_buf` is not set to zero
* - `LV_DRAW_MASK_RES_FULL_COVER`: the whole line is fully visible. `mask_buf` is unchanged
* - `LV_DRAW_MASK_RES_CHANGED`: `mask_buf` has changed, it shows the desired opacity of each pixel in the given line
*/
LV_ATTRIBUTE_FAST_MEM lv_draw_mask_res_t lv_draw_mask_apply(lv_opa_t * mask_buf, lv_coord_t abs_x, lv_coord_t abs_y,
lv_coord_t len)
{
bool changed = false;
_lv_draw_mask_common_dsc_t * dsc;
_lv_draw_mask_saved_t * m = LV_GC_ROOT(_lv_draw_mask_list);
while(m->param) {
dsc = m->param;
lv_draw_mask_res_t res = LV_DRAW_MASK_RES_FULL_COVER;
res = dsc->cb(mask_buf, abs_x, abs_y, len, (void *)m->param);
if(res == LV_DRAW_MASK_RES_TRANSP) return LV_DRAW_MASK_RES_TRANSP;
else if(res == LV_DRAW_MASK_RES_CHANGED) changed = true;
m++;
}
return changed ? LV_DRAW_MASK_RES_CHANGED : LV_DRAW_MASK_RES_FULL_COVER;
}
/**
* Apply the specified buffers on a line. Used internally by the library's drawing routines.
* @param mask_buf store the result mask here. Has to be `len` byte long. Should be initialized with `0xFF`.
* @param abs_x absolute X coordinate where the line to calculate start
* @param abs_y absolute Y coordinate where the line to calculate start
* @param len length of the line to calculate (in pixel count)
* @param ids ID array of added buffers
* @param ids_count number of ID array
* @return One of these values:
* - `LV_DRAW_MASK_RES_FULL_TRANSP`: the whole line is transparent. `mask_buf` is not set to zero
* - `LV_DRAW_MASK_RES_FULL_COVER`: the whole line is fully visible. `mask_buf` is unchanged
* - `LV_DRAW_MASK_RES_CHANGED`: `mask_buf` has changed, it shows the desired opacity of each pixel in the given line
*/
LV_ATTRIBUTE_FAST_MEM lv_draw_mask_res_t lv_draw_mask_apply_ids(lv_opa_t * mask_buf, lv_coord_t abs_x, lv_coord_t abs_y,
lv_coord_t len, const int16_t *ids, int16_t ids_count)
{
bool changed = false;
_lv_draw_mask_common_dsc_t * dsc;
for (int i = 0; i < ids_count; i++) {
int16_t id = ids[i];
if (id == LV_MASK_ID_INV) continue;
dsc = LV_GC_ROOT(_lv_draw_mask_list[id]).param;
if (!dsc) continue;
lv_draw_mask_res_t res = LV_DRAW_MASK_RES_FULL_COVER;
res = dsc->cb(mask_buf, abs_x, abs_y, len, dsc);
if(res == LV_DRAW_MASK_RES_TRANSP) return LV_DRAW_MASK_RES_TRANSP;
else if(res == LV_DRAW_MASK_RES_CHANGED) changed = true;
}
return changed ? LV_DRAW_MASK_RES_CHANGED : LV_DRAW_MASK_RES_FULL_COVER;
}
/**
* Remove a mask with a given ID
* @param id the ID of the mask. Returned by `lv_draw_mask_add`
* @return the parameter of the removed mask.
* If more masks have `custom_id` ID then the last mask's parameter will be returned
*/
void * lv_draw_mask_remove_id(int16_t id)
{
_lv_draw_mask_common_dsc_t * p = NULL;
if(id != LV_MASK_ID_INV) {
p = LV_GC_ROOT(_lv_draw_mask_list[id]).param;
LV_GC_ROOT(_lv_draw_mask_list[id]).param = NULL;
LV_GC_ROOT(_lv_draw_mask_list[id]).custom_id = NULL;
}
return p;
}
/**
* Remove all mask with a given custom ID
* @param custom_id a pointer used in `lv_draw_mask_add`
* @return return the parameter of the removed mask.
* If more masks have `custom_id` ID then the last mask's parameter will be returned
*/
void * lv_draw_mask_remove_custom(void * custom_id)
{
_lv_draw_mask_common_dsc_t * p = NULL;
uint8_t i;
for(i = 0; i < _LV_MASK_MAX_NUM; i++) {
if(LV_GC_ROOT(_lv_draw_mask_list[i]).custom_id == custom_id) {
p = LV_GC_ROOT(_lv_draw_mask_list[i]).param;
lv_draw_mask_remove_id(i);
}
}
return p;
}
/**
* Free the data from the parameter.
* It's called inside `lv_draw_mask_remove_id` and `lv_draw_mask_remove_custom`
* Needs to be called only in special cases when the mask is not added by `lv_draw_mask_add`
* and not removed by `lv_draw_mask_remove_id` or `lv_draw_mask_remove_custom`
* @param p pointer to a mask parameter
*/
void lv_draw_mask_free_param(void * p)
{
_lv_draw_mask_common_dsc_t * pdsc = p;
if(pdsc->type == LV_DRAW_MASK_TYPE_RADIUS) {
lv_draw_mask_radius_param_t * radius_p = (lv_draw_mask_radius_param_t *) p;
if(radius_p->circle) {
if(radius_p->circle->life < 0) {
lv_mem_free(radius_p->circle->cir_opa);
lv_mem_free(radius_p->circle);
}
else {
radius_p->circle->used_cnt--;
}
}
}
}
void _lv_draw_mask_cleanup(void)
{
uint8_t i;
for(i = 0; i < LV_CIRCLE_CACHE_SIZE; i++) {
if(LV_GC_ROOT(_lv_circle_cache[i]).buf) {
lv_mem_free(LV_GC_ROOT(_lv_circle_cache[i]).buf);
}
lv_memset_00(&LV_GC_ROOT(_lv_circle_cache[i]), sizeof(LV_GC_ROOT(_lv_circle_cache[i])));
}
}
/**
* Count the currently added masks
* @return number of active masks
*/
LV_ATTRIBUTE_FAST_MEM uint8_t lv_draw_mask_get_cnt(void)
{
uint8_t cnt = 0;
uint8_t i;
for(i = 0; i < _LV_MASK_MAX_NUM; i++) {
if(LV_GC_ROOT(_lv_draw_mask_list[i]).param) cnt++;
}
return cnt;
}
bool lv_draw_mask_is_any(const lv_area_t * a)
{
if(a == NULL) return LV_GC_ROOT(_lv_draw_mask_list[0]).param ? true : false;
uint8_t i;
for(i = 0; i < _LV_MASK_MAX_NUM; i++) {
_lv_draw_mask_common_dsc_t * comm_param = LV_GC_ROOT(_lv_draw_mask_list[i]).param;
if(comm_param == NULL) continue;
if(comm_param->type == LV_DRAW_MASK_TYPE_RADIUS) {
lv_draw_mask_radius_param_t * radius_param = LV_GC_ROOT(_lv_draw_mask_list[i]).param;
if(radius_param->cfg.outer) {
if(!_lv_area_is_out(a, &radius_param->cfg.rect, radius_param->cfg.radius)) return true;
}
else {
if(!_lv_area_is_in(a, &radius_param->cfg.rect, radius_param->cfg.radius)) return true;
}
}
else {
return true;
}
}
return false;
}
/**
*Initialize a line mask from two points.
* @param param pointer to a `lv_draw_mask_param_t` to initialize
* @param p1x X coordinate of the first point of the line
* @param p1y Y coordinate of the first point of the line
* @param p2x X coordinate of the second point of the line
* @param p2y y coordinate of the second point of the line
* @param side and element of `lv_draw_mask_line_side_t` to describe which side to keep.
* With `LV_DRAW_MASK_LINE_SIDE_LEFT/RIGHT` and horizontal line all pixels are kept
* With `LV_DRAW_MASK_LINE_SIDE_TOP/BOTTOM` and vertical line all pixels are kept
*/
void lv_draw_mask_line_points_init(lv_draw_mask_line_param_t * param, lv_coord_t p1x, lv_coord_t p1y, lv_coord_t p2x,
lv_coord_t p2y, lv_draw_mask_line_side_t side)
{
lv_memset_00(param, sizeof(lv_draw_mask_line_param_t));
if(p1y == p2y && side == LV_DRAW_MASK_LINE_SIDE_BOTTOM) {
p1y--;
p2y--;
}
if(p1y > p2y) {
lv_coord_t t;
t = p2x;
p2x = p1x;
p1x = t;
t = p2y;
p2y = p1y;
p1y = t;
}
param->cfg.p1.x = p1x;
param->cfg.p1.y = p1y;
param->cfg.p2.x = p2x;
param->cfg.p2.y = p2y;
param->cfg.side = side;
param->origo.x = p1x;
param->origo.y = p1y;
param->flat = (LV_ABS(p2x - p1x) > LV_ABS(p2y - p1y)) ? 1 : 0;
param->yx_steep = 0;
param->xy_steep = 0;
param->dsc.cb = (lv_draw_mask_xcb_t)lv_draw_mask_line;
param->dsc.type = LV_DRAW_MASK_TYPE_LINE;
int32_t dx = p2x - p1x;
int32_t dy = p2y - p1y;
if(param->flat) {
/*Normalize the steep. Delta x should be relative to delta x = 1024*/
int32_t m;
if(dx) {
m = (1L << 20) / dx; /*m is multiplier to normalize y (upscaled by 1024)*/
param->yx_steep = (m * dy) >> 10;
}
if(dy) {
m = (1L << 20) / dy; /*m is multiplier to normalize x (upscaled by 1024)*/
param->xy_steep = (m * dx) >> 10;
}
param->steep = param->yx_steep;
}
else {
/*Normalize the steep. Delta y should be relative to delta x = 1024*/
int32_t m;
if(dy) {
m = (1L << 20) / dy; /*m is multiplier to normalize x (upscaled by 1024)*/
param->xy_steep = (m * dx) >> 10;
}
if(dx) {
m = (1L << 20) / dx; /*m is multiplier to normalize x (upscaled by 1024)*/
param->yx_steep = (m * dy) >> 10;
}
param->steep = param->xy_steep;
}
if(param->cfg.side == LV_DRAW_MASK_LINE_SIDE_LEFT) param->inv = 0;
else if(param->cfg.side == LV_DRAW_MASK_LINE_SIDE_RIGHT) param->inv = 1;
else if(param->cfg.side == LV_DRAW_MASK_LINE_SIDE_TOP) {
if(param->steep > 0) param->inv = 1;
else param->inv = 0;
}
else if(param->cfg.side == LV_DRAW_MASK_LINE_SIDE_BOTTOM) {
if(param->steep > 0) param->inv = 0;
else param->inv = 1;
}
param->spx = param->steep >> 2;
if(param->steep < 0) param->spx = -param->spx;
}
/**
*Initialize a line mask from a point and an angle.
* @param param pointer to a `lv_draw_mask_param_t` to initialize
* @param px X coordinate of a point of the line
* @param py X coordinate of a point of the line
* @param angle right 0 deg, bottom: 90
* @param side and element of `lv_draw_mask_line_side_t` to describe which side to keep.
* With `LV_DRAW_MASK_LINE_SIDE_LEFT/RIGHT` and horizontal line all pixels are kept
* With `LV_DRAW_MASK_LINE_SIDE_TOP/BOTTOM` and vertical line all pixels are kept
*/
void lv_draw_mask_line_angle_init(lv_draw_mask_line_param_t * param, lv_coord_t p1x, lv_coord_t py, int16_t angle,
lv_draw_mask_line_side_t side)
{
/*Find an optimal degree.
*lv_mask_line_points_init will swap the points to keep the smaller y in p1
*Theoretically a line with `angle` or `angle+180` is the same only the points are swapped
*Find the degree which keeps the origo in place*/
if(angle > 180) angle -= 180; /*> 180 will swap the origo*/
int32_t p2x;
int32_t p2y;
p2x = (lv_trigo_sin(angle + 90) >> 5) + p1x;
p2y = (lv_trigo_sin(angle) >> 5) + py;
lv_draw_mask_line_points_init(param, p1x, py, p2x, p2y, side);
}
/**
* Initialize an angle mask.
* @param param pointer to a `lv_draw_mask_param_t` to initialize
* @param vertex_x X coordinate of the angle vertex (absolute coordinates)
* @param vertex_y Y coordinate of the angle vertex (absolute coordinates)
* @param start_angle start angle in degrees. 0 deg on the right, 90 deg, on the bottom
* @param end_angle end angle
*/
void lv_draw_mask_angle_init(lv_draw_mask_angle_param_t * param, lv_coord_t vertex_x, lv_coord_t vertex_y,
lv_coord_t start_angle, lv_coord_t end_angle)
{
lv_draw_mask_line_side_t start_side;
lv_draw_mask_line_side_t end_side;
/*Constrain the input angles*/
if(start_angle < 0)
start_angle = 0;
else if(start_angle > 359)
start_angle = 359;
if(end_angle < 0)
end_angle = 0;
else if(end_angle > 359)
end_angle = 359;
if(end_angle < start_angle) {
param->delta_deg = 360 - start_angle + end_angle;
}
else {
param->delta_deg = LV_ABS(end_angle - start_angle);
}
param->cfg.start_angle = start_angle;
param->cfg.end_angle = end_angle;
param->cfg.vertex_p.x = vertex_x;
param->cfg.vertex_p.y = vertex_y;
param->dsc.cb = (lv_draw_mask_xcb_t)lv_draw_mask_angle;
param->dsc.type = LV_DRAW_MASK_TYPE_ANGLE;
LV_ASSERT_MSG(start_angle >= 0 && start_angle <= 360, "Unexpected start angle");
if(start_angle >= 0 && start_angle < 180) {
start_side = LV_DRAW_MASK_LINE_SIDE_LEFT;
}
else if(start_angle >= 180 && start_angle < 360) {
start_side = LV_DRAW_MASK_LINE_SIDE_RIGHT;
}
else
start_side = LV_DRAW_MASK_LINE_SIDE_RIGHT; /*silence compiler*/
LV_ASSERT_MSG(end_angle >= 0 && start_angle <= 360, "Unexpected end angle");
if(end_angle >= 0 && end_angle < 180) {
end_side = LV_DRAW_MASK_LINE_SIDE_RIGHT;
}
else if(end_angle >= 180 && end_angle < 360) {
end_side = LV_DRAW_MASK_LINE_SIDE_LEFT;
}
else
end_side = LV_DRAW_MASK_LINE_SIDE_RIGHT; /*silence compiler*/
lv_draw_mask_line_angle_init(¶m->start_line, vertex_x, vertex_y, start_angle, start_side);
lv_draw_mask_line_angle_init(¶m->end_line, vertex_x, vertex_y, end_angle, end_side);
}
/**
* Initialize a fade mask.
* @param param param pointer to a `lv_draw_mask_param_t` to initialize
* @param rect coordinates of the rectangle to affect (absolute coordinates)
* @param radius radius of the rectangle
* @param inv true: keep the pixels inside the rectangle; keep the pixels outside of the rectangle
*/
void lv_draw_mask_radius_init(lv_draw_mask_radius_param_t * param, const lv_area_t * rect, lv_coord_t radius, bool inv)
{
lv_coord_t w = lv_area_get_width(rect);
lv_coord_t h = lv_area_get_height(rect);
if(radius < 0) radius = 0;
int32_t short_side = LV_MIN(w, h);
if(radius > short_side >> 1) radius = short_side >> 1;
lv_area_copy(¶m->cfg.rect, rect);
param->cfg.radius = radius;
param->cfg.outer = inv ? 1 : 0;
param->dsc.cb = (lv_draw_mask_xcb_t)lv_draw_mask_radius;
param->dsc.type = LV_DRAW_MASK_TYPE_RADIUS;
if(radius == 0) {
param->circle = NULL;
return;
}
uint32_t i;
/*Try to reuse a circle cache entry*/
for(i = 0; i < LV_CIRCLE_CACHE_SIZE; i++) {
if(LV_GC_ROOT(_lv_circle_cache[i]).radius == radius) {
LV_GC_ROOT(_lv_circle_cache[i]).used_cnt++;
CIRCLE_CACHE_AGING(LV_GC_ROOT(_lv_circle_cache[i]).life, radius);
param->circle = &LV_GC_ROOT(_lv_circle_cache[i]);
return;
}
}
/*If not found find a free entry with lowest life*/
_lv_draw_mask_radius_circle_dsc_t * entry = NULL;
for(i = 0; i < LV_CIRCLE_CACHE_SIZE; i++) {
if(LV_GC_ROOT(_lv_circle_cache[i]).used_cnt == 0) {
if(!entry) entry = &LV_GC_ROOT(_lv_circle_cache[i]);
else if(LV_GC_ROOT(_lv_circle_cache[i]).life < entry->life) entry = &LV_GC_ROOT(_lv_circle_cache[i]);
}
}
if(!entry) {
entry = lv_mem_alloc(sizeof(_lv_draw_mask_radius_circle_dsc_t));
LV_ASSERT_MALLOC(entry);
lv_memset_00(entry, sizeof(_lv_draw_mask_radius_circle_dsc_t));
entry->life = -1;
}
else {
entry->used_cnt++;
entry->life = 0;
CIRCLE_CACHE_AGING(entry->life, radius);
}
param->circle = entry;
circ_calc_aa4(param->circle, radius);
}
/**
* Initialize a fade mask.
* @param param pointer to a `lv_draw_mask_param_t` to initialize
* @param coords coordinates of the area to affect (absolute coordinates)
* @param opa_top opacity on the top
* @param y_top at which coordinate start to change to opacity to `opa_bottom`
* @param opa_bottom opacity at the bottom
* @param y_bottom at which coordinate reach `opa_bottom`.
*/
void lv_draw_mask_fade_init(lv_draw_mask_fade_param_t * param, const lv_area_t * coords, lv_opa_t opa_top,
lv_coord_t y_top,
lv_opa_t opa_bottom, lv_coord_t y_bottom)
{
lv_area_copy(¶m->cfg.coords, coords);
param->cfg.opa_top = opa_top;
param->cfg.opa_bottom = opa_bottom;
param->cfg.y_top = y_top;
param->cfg.y_bottom = y_bottom;
param->dsc.cb = (lv_draw_mask_xcb_t)lv_draw_mask_fade;
param->dsc.type = LV_DRAW_MASK_TYPE_FADE;
}
/**
* Initialize a map mask.
* @param param pointer to a `lv_draw_mask_param_t` to initialize
* @param coords coordinates of the map (absolute coordinates)
* @param map array of bytes with the mask values
*/
void lv_draw_mask_map_init(lv_draw_mask_map_param_t * param, const lv_area_t * coords, const lv_opa_t * map)
{
lv_area_copy(¶m->cfg.coords, coords);
param->cfg.map = map;
param->dsc.cb = (lv_draw_mask_xcb_t)lv_draw_mask_map;
param->dsc.type = LV_DRAW_MASK_TYPE_MAP;
}
/**********************
* STATIC FUNCTIONS
**********************/
LV_ATTRIBUTE_FAST_MEM static lv_draw_mask_res_t lv_draw_mask_line(lv_opa_t * mask_buf, lv_coord_t abs_x,
lv_coord_t abs_y, lv_coord_t len,
lv_draw_mask_line_param_t * p)
{
/*Make to points relative to the vertex*/
abs_y -= p->origo.y;
abs_x -= p->origo.x;
/*Handle special cases*/
if(p->steep == 0) {
/*Horizontal*/
if(p->flat) {
/*Non sense: Can't be on the right/left of a horizontal line*/
if(p->cfg.side == LV_DRAW_MASK_LINE_SIDE_LEFT ||
p->cfg.side == LV_DRAW_MASK_LINE_SIDE_RIGHT) return LV_DRAW_MASK_RES_FULL_COVER;
else if(p->cfg.side == LV_DRAW_MASK_LINE_SIDE_TOP && abs_y + 1 < 0) return LV_DRAW_MASK_RES_FULL_COVER;
else if(p->cfg.side == LV_DRAW_MASK_LINE_SIDE_BOTTOM && abs_y > 0) return LV_DRAW_MASK_RES_FULL_COVER;
else {
return LV_DRAW_MASK_RES_TRANSP;
}
}
/*Vertical*/
else {
/*Non sense: Can't be on the top/bottom of a vertical line*/
if(p->cfg.side == LV_DRAW_MASK_LINE_SIDE_TOP ||
p->cfg.side == LV_DRAW_MASK_LINE_SIDE_BOTTOM) return LV_DRAW_MASK_RES_FULL_COVER;
else if(p->cfg.side == LV_DRAW_MASK_LINE_SIDE_RIGHT && abs_x > 0) return LV_DRAW_MASK_RES_FULL_COVER;
else if(p->cfg.side == LV_DRAW_MASK_LINE_SIDE_LEFT) {
if(abs_x + len < 0) return LV_DRAW_MASK_RES_FULL_COVER;
else {
int32_t k = - abs_x;
if(k < 0) return LV_DRAW_MASK_RES_TRANSP;
if(k >= 0 && k < len) lv_memset_00(&mask_buf[k], len - k);
return LV_DRAW_MASK_RES_CHANGED;
}
}
else {
if(abs_x + len < 0) return LV_DRAW_MASK_RES_TRANSP;
else {
int32_t k = - abs_x;
if(k < 0) k = 0;
if(k >= len) return LV_DRAW_MASK_RES_TRANSP;
else if(k >= 0 && k < len) lv_memset_00(&mask_buf[0], k);
return LV_DRAW_MASK_RES_CHANGED;
}
}
}
}
lv_draw_mask_res_t res;
if(p->flat) {
res = line_mask_flat(mask_buf, abs_x, abs_y, len, p);
}
else {
res = line_mask_steep(mask_buf, abs_x, abs_y, len, p);
}
return res;
}
LV_ATTRIBUTE_FAST_MEM static lv_draw_mask_res_t line_mask_flat(lv_opa_t * mask_buf, lv_coord_t abs_x, lv_coord_t abs_y,
lv_coord_t len,
lv_draw_mask_line_param_t * p)
{
int32_t y_at_x;
y_at_x = (int32_t)((int32_t)p->yx_steep * abs_x) >> 10;
if(p->yx_steep > 0) {
if(y_at_x > abs_y) {
if(p->inv) {
return LV_DRAW_MASK_RES_FULL_COVER;
}
else {
return LV_DRAW_MASK_RES_TRANSP;
}
}
}
else {
if(y_at_x < abs_y) {
if(p->inv) {
return LV_DRAW_MASK_RES_FULL_COVER;
}
else {
return LV_DRAW_MASK_RES_TRANSP;
}
}
}
/*At the end of the mask if the limit line is smaller than the mask's y.
*Then the mask is in the "good" area*/
y_at_x = (int32_t)((int32_t)p->yx_steep * (abs_x + len)) >> 10;
if(p->yx_steep > 0) {
if(y_at_x < abs_y) {
if(p->inv) {
return LV_DRAW_MASK_RES_TRANSP;
}
else {
return LV_DRAW_MASK_RES_FULL_COVER;
}
}
}
else {
if(y_at_x > abs_y) {
if(p->inv) {
return LV_DRAW_MASK_RES_TRANSP;
}
else {
return LV_DRAW_MASK_RES_FULL_COVER;
}
}
}
int32_t xe;
if(p->yx_steep > 0) xe = ((abs_y * 256) * p->xy_steep) >> 10;
else xe = (((abs_y + 1) * 256) * p->xy_steep) >> 10;
int32_t xei = xe >> 8;
int32_t xef = xe & 0xFF;
int32_t px_h;
if(xef == 0) px_h = 255;
else px_h = 255 - (((255 - xef) * p->spx) >> 8);
int32_t k = xei - abs_x;
lv_opa_t m;
if(xef) {
if(k >= 0 && k < len) {
m = 255 - (((255 - xef) * (255 - px_h)) >> 9);
if(p->inv) m = 255 - m;
mask_buf[k] = mask_mix(mask_buf[k], m);
}
k++;
}
while(px_h > p->spx) {
if(k >= 0 && k < len) {
m = px_h - (p->spx >> 1);
if(p->inv) m = 255 - m;
mask_buf[k] = mask_mix(mask_buf[k], m);
}
px_h -= p->spx;
k++;
if(k >= len) break;
}
if(k < len && k >= 0) {
int32_t x_inters = (px_h * p->xy_steep) >> 10;
m = (x_inters * px_h) >> 9;
if(p->yx_steep < 0) m = 255 - m;
if(p->inv) m = 255 - m;
mask_buf[k] = mask_mix(mask_buf[k], m);
}
if(p->inv) {
k = xei - abs_x;
if(k > len) {
return LV_DRAW_MASK_RES_TRANSP;
}
if(k >= 0) {
lv_memset_00(&mask_buf[0], k);
}
}
else {
k++;
if(k < 0) {
return LV_DRAW_MASK_RES_TRANSP;
}
if(k <= len) {
lv_memset_00(&mask_buf[k], len - k);
}
}
return LV_DRAW_MASK_RES_CHANGED;
}
LV_ATTRIBUTE_FAST_MEM static lv_draw_mask_res_t line_mask_steep(lv_opa_t * mask_buf, lv_coord_t abs_x, lv_coord_t abs_y,
lv_coord_t len,
lv_draw_mask_line_param_t * p)
{
int32_t k;
int32_t x_at_y;
/*At the beginning of the mask if the limit line is greater than the mask's y.
*Then the mask is in the "wrong" area*/
x_at_y = (int32_t)((int32_t)p->xy_steep * abs_y) >> 10;
if(p->xy_steep > 0) x_at_y++;
if(x_at_y < abs_x) {
if(p->inv) {
return LV_DRAW_MASK_RES_FULL_COVER;
}
else {
return LV_DRAW_MASK_RES_TRANSP;
}
}
/*At the end of the mask if the limit line is smaller than the mask's y.
*Then the mask is in the "good" area*/
x_at_y = (int32_t)((int32_t)p->xy_steep * (abs_y)) >> 10;
if(x_at_y > abs_x + len) {
if(p->inv) {
return LV_DRAW_MASK_RES_TRANSP;
}
else {
return LV_DRAW_MASK_RES_FULL_COVER;
}
}
/*X start*/
int32_t xs = ((abs_y * 256) * p->xy_steep) >> 10;
int32_t xsi = xs >> 8;
int32_t xsf = xs & 0xFF;
/*X end*/
int32_t xe = (((abs_y + 1) * 256) * p->xy_steep) >> 10;
int32_t xei = xe >> 8;
int32_t xef = xe & 0xFF;
lv_opa_t m;
k = xsi - abs_x;
if(xsi != xei && (p->xy_steep < 0 && xsf == 0)) {
xsf = 0xFF;
xsi = xei;
k--;
}
if(xsi == xei) {
if(k >= 0 && k < len) {
m = (xsf + xef) >> 1;
if(p->inv) m = 255 - m;
mask_buf[k] = mask_mix(mask_buf[k], m);
}
k++;
if(p->inv) {
k = xsi - abs_x;
if(k >= len) {
return LV_DRAW_MASK_RES_TRANSP;
}
if(k >= 0) lv_memset_00(&mask_buf[0], k);
}
else {
if(k > len) k = len;
if(k == 0) return LV_DRAW_MASK_RES_TRANSP;
else if(k > 0) lv_memset_00(&mask_buf[k], len - k);
}
}
else {
int32_t y_inters;
if(p->xy_steep < 0) {
y_inters = (xsf * (-p->yx_steep)) >> 10;
if(k >= 0 && k < len) {
m = (y_inters * xsf) >> 9;
if(p->inv) m = 255 - m;
mask_buf[k] = mask_mix(mask_buf[k], m);
}
k--;
int32_t x_inters = ((255 - y_inters) * (-p->xy_steep)) >> 10;
if(k >= 0 && k < len) {
m = 255 - (((255 - y_inters) * x_inters) >> 9);
if(p->inv) m = 255 - m;
mask_buf[k] = mask_mix(mask_buf[k], m);
}
k += 2;
if(p->inv) {
k = xsi - abs_x - 1;
if(k > len) k = len;
else if(k > 0) lv_memset_00(&mask_buf[0], k);
}
else {
if(k > len) return LV_DRAW_MASK_RES_FULL_COVER;
if(k >= 0) lv_memset_00(&mask_buf[k], len - k);
}
}
else {
y_inters = ((255 - xsf) * p->yx_steep) >> 10;
if(k >= 0 && k < len) {
m = 255 - ((y_inters * (255 - xsf)) >> 9);
if(p->inv) m = 255 - m;
mask_buf[k] = mask_mix(mask_buf[k], m);
}
k++;
int32_t x_inters = ((255 - y_inters) * p->xy_steep) >> 10;
if(k >= 0 && k < len) {
m = ((255 - y_inters) * x_inters) >> 9;
if(p->inv) m = 255 - m;
mask_buf[k] = mask_mix(mask_buf[k], m);
}
k++;
if(p->inv) {
k = xsi - abs_x;
if(k > len) return LV_DRAW_MASK_RES_TRANSP;
if(k >= 0) lv_memset_00(&mask_buf[0], k);
}
else {
if(k > len) k = len;
if(k == 0) return LV_DRAW_MASK_RES_TRANSP;
else if(k > 0) lv_memset_00(&mask_buf[k], len - k);
}
}
}
return LV_DRAW_MASK_RES_CHANGED;
}
LV_ATTRIBUTE_FAST_MEM static lv_draw_mask_res_t lv_draw_mask_angle(lv_opa_t * mask_buf, lv_coord_t abs_x,
lv_coord_t abs_y, lv_coord_t len,
lv_draw_mask_angle_param_t * p)
{
int32_t rel_y = abs_y - p->cfg.vertex_p.y;
int32_t rel_x = abs_x - p->cfg.vertex_p.x;
if(p->cfg.start_angle < 180 && p->cfg.end_angle < 180 &&
p->cfg.start_angle != 0 && p->cfg.end_angle != 0 &&
p->cfg.start_angle > p->cfg.end_angle) {
if(abs_y < p->cfg.vertex_p.y) {
return LV_DRAW_MASK_RES_FULL_COVER;
}
/*Start angle mask can work only from the end of end angle mask*/
int32_t end_angle_first = (rel_y * p->end_line.xy_steep) >> 10;
int32_t start_angle_last = ((rel_y + 1) * p->start_line.xy_steep) >> 10;
/*Do not let the line end cross the vertex else it will affect the opposite part*/
if(p->cfg.start_angle > 270 && p->cfg.start_angle <= 359 && start_angle_last < 0) start_angle_last = 0;
else if(p->cfg.start_angle > 0 && p->cfg.start_angle <= 90 && start_angle_last < 0) start_angle_last = 0;
else if(p->cfg.start_angle > 90 && p->cfg.start_angle < 270 && start_angle_last > 0) start_angle_last = 0;
if(p->cfg.end_angle > 270 && p->cfg.end_angle <= 359 && start_angle_last < 0) start_angle_last = 0;
else if(p->cfg.end_angle > 0 && p->cfg.end_angle <= 90 && start_angle_last < 0) start_angle_last = 0;
else if(p->cfg.end_angle > 90 && p->cfg.end_angle < 270 && start_angle_last > 0) start_angle_last = 0;
int32_t dist = (end_angle_first - start_angle_last) >> 1;
lv_draw_mask_res_t res1 = LV_DRAW_MASK_RES_FULL_COVER;
lv_draw_mask_res_t res2 = LV_DRAW_MASK_RES_FULL_COVER;
int32_t tmp = start_angle_last + dist - rel_x;
if(tmp > len) tmp = len;
if(tmp > 0) {
res1 = lv_draw_mask_line(&mask_buf[0], abs_x, abs_y, tmp, &p->start_line);
if(res1 == LV_DRAW_MASK_RES_TRANSP) {
lv_memset_00(&mask_buf[0], tmp);
}
}
if(tmp > len) tmp = len;
if(tmp < 0) tmp = 0;
res2 = lv_draw_mask_line(&mask_buf[tmp], abs_x + tmp, abs_y, len - tmp, &p->end_line);
if(res2 == LV_DRAW_MASK_RES_TRANSP) {
lv_memset_00(&mask_buf[tmp], len - tmp);
}
if(res1 == res2) return res1;
else return LV_DRAW_MASK_RES_CHANGED;
}
else if(p->cfg.start_angle > 180 && p->cfg.end_angle > 180 && p->cfg.start_angle > p->cfg.end_angle) {
if(abs_y > p->cfg.vertex_p.y) {
return LV_DRAW_MASK_RES_FULL_COVER;
}
/*Start angle mask can work only from the end of end angle mask*/
int32_t end_angle_first = (rel_y * p->end_line.xy_steep) >> 10;
int32_t start_angle_last = ((rel_y + 1) * p->start_line.xy_steep) >> 10;
/*Do not let the line end cross the vertex else it will affect the opposite part*/
if(p->cfg.start_angle > 270 && p->cfg.start_angle <= 359 && start_angle_last < 0) start_angle_last = 0;
else if(p->cfg.start_angle > 0 && p->cfg.start_angle <= 90 && start_angle_last < 0) start_angle_last = 0;
else if(p->cfg.start_angle > 90 && p->cfg.start_angle < 270 && start_angle_last > 0) start_angle_last = 0;
if(p->cfg.end_angle > 270 && p->cfg.end_angle <= 359 && start_angle_last < 0) start_angle_last = 0;
else if(p->cfg.end_angle > 0 && p->cfg.end_angle <= 90 && start_angle_last < 0) start_angle_last = 0;
else if(p->cfg.end_angle > 90 && p->cfg.end_angle < 270 && start_angle_last > 0) start_angle_last = 0;
int32_t dist = (end_angle_first - start_angle_last) >> 1;
lv_draw_mask_res_t res1 = LV_DRAW_MASK_RES_FULL_COVER;
lv_draw_mask_res_t res2 = LV_DRAW_MASK_RES_FULL_COVER;
int32_t tmp = start_angle_last + dist - rel_x;
if(tmp > len) tmp = len;
if(tmp > 0) {
res1 = lv_draw_mask_line(&mask_buf[0], abs_x, abs_y, tmp, (lv_draw_mask_line_param_t *)&p->end_line);
if(res1 == LV_DRAW_MASK_RES_TRANSP) {
lv_memset_00(&mask_buf[0], tmp);
}
}
if(tmp > len) tmp = len;
if(tmp < 0) tmp = 0;
res2 = lv_draw_mask_line(&mask_buf[tmp], abs_x + tmp, abs_y, len - tmp, (lv_draw_mask_line_param_t *)&p->start_line);
if(res2 == LV_DRAW_MASK_RES_TRANSP) {
lv_memset_00(&mask_buf[tmp], len - tmp);
}
if(res1 == res2) return res1;
else return LV_DRAW_MASK_RES_CHANGED;
}
else {
lv_draw_mask_res_t res1 = LV_DRAW_MASK_RES_FULL_COVER;
lv_draw_mask_res_t res2 = LV_DRAW_MASK_RES_FULL_COVER;
if(p->cfg.start_angle == 180) {
if(abs_y < p->cfg.vertex_p.y) res1 = LV_DRAW_MASK_RES_FULL_COVER;
else res1 = LV_DRAW_MASK_RES_UNKNOWN;
}
else if(p->cfg.start_angle == 0) {
if(abs_y < p->cfg.vertex_p.y) res1 = LV_DRAW_MASK_RES_UNKNOWN;
else res1 = LV_DRAW_MASK_RES_FULL_COVER;
}
else if((p->cfg.start_angle < 180 && abs_y < p->cfg.vertex_p.y) ||
(p->cfg.start_angle > 180 && abs_y >= p->cfg.vertex_p.y)) {
res1 = LV_DRAW_MASK_RES_UNKNOWN;
}
else {
res1 = lv_draw_mask_line(mask_buf, abs_x, abs_y, len, &p->start_line);
}
if(p->cfg.end_angle == 180) {
if(abs_y < p->cfg.vertex_p.y) res2 = LV_DRAW_MASK_RES_UNKNOWN;
else res2 = LV_DRAW_MASK_RES_FULL_COVER;
}
else if(p->cfg.end_angle == 0) {
if(abs_y < p->cfg.vertex_p.y) res2 = LV_DRAW_MASK_RES_FULL_COVER;
else res2 = LV_DRAW_MASK_RES_UNKNOWN;
}
else if((p->cfg.end_angle < 180 && abs_y < p->cfg.vertex_p.y) ||
(p->cfg.end_angle > 180 && abs_y >= p->cfg.vertex_p.y)) {
res2 = LV_DRAW_MASK_RES_UNKNOWN;
}
else {
res2 = lv_draw_mask_line(mask_buf, abs_x, abs_y, len, &p->end_line);
}
if(res1 == LV_DRAW_MASK_RES_TRANSP || res2 == LV_DRAW_MASK_RES_TRANSP) return LV_DRAW_MASK_RES_TRANSP;
else if(res1 == LV_DRAW_MASK_RES_UNKNOWN && res2 == LV_DRAW_MASK_RES_UNKNOWN) return LV_DRAW_MASK_RES_TRANSP;
else if(res1 == LV_DRAW_MASK_RES_FULL_COVER && res2 == LV_DRAW_MASK_RES_FULL_COVER) return LV_DRAW_MASK_RES_FULL_COVER;
else return LV_DRAW_MASK_RES_CHANGED;
}
}
LV_ATTRIBUTE_FAST_MEM static lv_draw_mask_res_t lv_draw_mask_radius(lv_opa_t * mask_buf, lv_coord_t abs_x,
lv_coord_t abs_y, lv_coord_t len,
lv_draw_mask_radius_param_t * p)
{
bool outer = p->cfg.outer;
int32_t radius = p->cfg.radius;
lv_area_t rect;
lv_area_copy(&rect, &p->cfg.rect);
if(outer == false) {
if((abs_y < rect.y1 || abs_y > rect.y2)) {
return LV_DRAW_MASK_RES_TRANSP;
}
}
else {
if(abs_y < rect.y1 || abs_y > rect.y2) {
return LV_DRAW_MASK_RES_FULL_COVER;
}
}
if((abs_x >= rect.x1 + radius && abs_x + len <= rect.x2 - radius) ||
(abs_y >= rect.y1 + radius && abs_y <= rect.y2 - radius)) {
if(outer == false) {
/*Remove the edges*/
int32_t last = rect.x1 - abs_x;
if(last > len) return LV_DRAW_MASK_RES_TRANSP;
if(last >= 0) {
lv_memset_00(&mask_buf[0], last);
}
int32_t first = rect.x2 - abs_x + 1;
if(first <= 0) return LV_DRAW_MASK_RES_TRANSP;
else if(first < len) {
lv_memset_00(&mask_buf[first], len - first);
}
if(last == 0 && first == len) return LV_DRAW_MASK_RES_FULL_COVER;
else return LV_DRAW_MASK_RES_CHANGED;
}
else {
int32_t first = rect.x1 - abs_x;
if(first < 0) first = 0;
if(first <= len) {
int32_t last = rect.x2 - abs_x - first + 1;
if(first + last > len) last = len - first;
if(last >= 0) {
lv_memset_00(&mask_buf[first], last);
}
}
}
return LV_DRAW_MASK_RES_CHANGED;
}
// printf("exec: x:%d.. %d, y:%d: r:%d, %s\n", abs_x, abs_x + len - 1, abs_y, p->cfg.radius, p->cfg.outer ? "inv" : "norm");
// if( abs_x == 276 && abs_x + len - 1 == 479 && abs_y == 63 && p->cfg.radius == 5 && p->cfg.outer == 1) {
// char x = 0;
// }
//exec: x:276.. 479, y:63: r:5, inv)
int32_t k = rect.x1 - abs_x; /*First relevant coordinate on the of the mask*/
int32_t w = lv_area_get_width(&rect);
int32_t h = lv_area_get_height(&rect);
abs_x -= rect.x1;
abs_y -= rect.y1;
lv_coord_t aa_len;
lv_coord_t x_start;
lv_coord_t cir_y;
if(abs_y < radius) {
cir_y = radius - abs_y - 1;
}
else {
cir_y = abs_y - (h - radius);
}
lv_opa_t * aa_opa = get_next_line(p->circle, cir_y, &aa_len, &x_start);
lv_coord_t cir_x_right = k + w - radius + x_start;
lv_coord_t cir_x_left = k + radius - x_start - 1;
lv_coord_t i;
if(outer == false) {
for(i = 0; i < aa_len; i++) {
lv_opa_t opa = aa_opa[aa_len - i - 1];
if(cir_x_right + i >= 0 && cir_x_right + i < len) {
mask_buf[cir_x_right + i] = mask_mix(opa, mask_buf[cir_x_right + i]);
}
if(cir_x_left - i >= 0 && cir_x_left - i < len) {
mask_buf[cir_x_left - i] = mask_mix(opa, mask_buf[cir_x_left - i]);
}
}
/*Clean the right side*/
cir_x_right = LV_CLAMP(0, cir_x_right + i, len);
lv_memset_00(&mask_buf[cir_x_right], len - cir_x_right);
/*Clean the left side*/
cir_x_left = LV_CLAMP(0, cir_x_left - aa_len + 1, len);
lv_memset_00(&mask_buf[0], cir_x_left);
}
else {
for(i = 0; i < aa_len; i++) {
lv_opa_t opa = 255 - (aa_opa[aa_len - 1 - i]);
if(cir_x_right + i >= 0 && cir_x_right + i < len) {
mask_buf[cir_x_right + i] = mask_mix(opa, mask_buf[cir_x_right + i]);
}
if(cir_x_left - i >= 0 && cir_x_left - i < len) {
mask_buf[cir_x_left - i] = mask_mix(opa, mask_buf[cir_x_left - i]);
}
}
lv_coord_t clr_start = LV_CLAMP(0, cir_x_left + 1, len);
lv_coord_t clr_len = LV_CLAMP(0, cir_x_right - clr_start, len - clr_start);
lv_memset_00(&mask_buf[clr_start], clr_len);
}
return LV_DRAW_MASK_RES_CHANGED;
}
LV_ATTRIBUTE_FAST_MEM static lv_draw_mask_res_t lv_draw_mask_fade(lv_opa_t * mask_buf, lv_coord_t abs_x,
lv_coord_t abs_y, lv_coord_t len,
lv_draw_mask_fade_param_t * p)
{
if(abs_y < p->cfg.coords.y1) return LV_DRAW_MASK_RES_FULL_COVER;
if(abs_y > p->cfg.coords.y2) return LV_DRAW_MASK_RES_FULL_COVER;
if(abs_x + len < p->cfg.coords.x1) return LV_DRAW_MASK_RES_FULL_COVER;
if(abs_x > p->cfg.coords.x2) return LV_DRAW_MASK_RES_FULL_COVER;
if(abs_x + len > p->cfg.coords.x2) len -= abs_x + len - p->cfg.coords.x2 - 1;
if(abs_x < p->cfg.coords.x1) {
int32_t x_ofs = 0;
x_ofs = p->cfg.coords.x1 - abs_x;
len -= x_ofs;
mask_buf += x_ofs;
}
int32_t i;
if(abs_y <= p->cfg.y_top) {
for(i = 0; i < len; i++) {
mask_buf[i] = mask_mix(mask_buf[i], p->cfg.opa_top);
}
return LV_DRAW_MASK_RES_CHANGED;
}
else if(abs_y >= p->cfg.y_bottom) {
for(i = 0; i < len; i++) {
mask_buf[i] = mask_mix(mask_buf[i], p->cfg.opa_bottom);
}
return LV_DRAW_MASK_RES_CHANGED;
}
else {
/*Calculate the opa proportionally*/
int16_t opa_diff = p->cfg.opa_bottom - p->cfg.opa_top;
int32_t y_diff = p->cfg.y_bottom - p->cfg.y_top + 1;
lv_opa_t opa_act = (int32_t)((int32_t)(abs_y - p->cfg.y_top) * opa_diff) / y_diff;
opa_act += p->cfg.opa_top;
for(i = 0; i < len; i++) {
mask_buf[i] = mask_mix(mask_buf[i], opa_act);
}
return LV_DRAW_MASK_RES_CHANGED;
}
}
LV_ATTRIBUTE_FAST_MEM static lv_draw_mask_res_t lv_draw_mask_map(lv_opa_t * mask_buf, lv_coord_t abs_x,
lv_coord_t abs_y, lv_coord_t len,
lv_draw_mask_map_param_t * p)
{
/*Handle out of the mask cases*/
if(abs_y < p->cfg.coords.y1) return LV_DRAW_MASK_RES_FULL_COVER;
if(abs_y > p->cfg.coords.y2) return LV_DRAW_MASK_RES_FULL_COVER;
if(abs_x + len < p->cfg.coords.x1) return LV_DRAW_MASK_RES_FULL_COVER;
if(abs_x > p->cfg.coords.x2) return LV_DRAW_MASK_RES_FULL_COVER;
/*Got to the current row in the map*/
const lv_opa_t * map_tmp = p->cfg.map;
map_tmp += (abs_y - p->cfg.coords.y1) * lv_area_get_width(&p->cfg.coords);
if(abs_x + len > p->cfg.coords.x2) len -= abs_x + len - p->cfg.coords.x2 - 1;
if(abs_x < p->cfg.coords.x1) {
int32_t x_ofs = 0;
x_ofs = p->cfg.coords.x1 - abs_x;
len -= x_ofs;
mask_buf += x_ofs;
}
else {
map_tmp += (abs_x - p->cfg.coords.x1);
}
int32_t i;
for(i = 0; i < len; i++) {
mask_buf[i] = mask_mix(mask_buf[i], map_tmp[i]);
}
return LV_DRAW_MASK_RES_CHANGED;
}
/**
* Initialize the circle drawing
* @param c pointer to a point. The coordinates will be calculated here
* @param tmp point to a variable. It will store temporary data
* @param radius radius of the circle
*/
static void circ_init(lv_point_t * c, lv_coord_t * tmp, lv_coord_t radius)
{
c->x = radius;
c->y = 0;
*tmp = 1 - radius;
}
/**
* Test the circle drawing is ready or not
* @param c same as in circ_init
* @return true if the circle is not ready yet
*/
static bool circ_cont(lv_point_t * c)
{
return c->y <= c->x ? true : false;
}
/**
* Get the next point from the circle
* @param c same as in circ_init. The next point stored here.
* @param tmp same as in circ_init.
*/
static void circ_next(lv_point_t * c, lv_coord_t * tmp)
{
if(*tmp <= 0) {
(*tmp) += 2 * c->y + 3; /*Change in decision criterion for y -> y+1*/
}
else {
(*tmp) += 2 * (c->y - c->x) + 5; /*Change for y -> y+1, x -> x-1*/
c->x--;
}
c->y++;
}
static void circ_calc_aa4(_lv_draw_mask_radius_circle_dsc_t * c, lv_coord_t radius)
{
if(radius == 0) return;
c->radius = radius;
/*Allocate buffers*/
if(c->buf) lv_mem_free(c->buf);
c->buf = lv_mem_alloc(radius * 6 + 6); /*Use uint16_t for opa_start_on_y and x_start_on_y*/
LV_ASSERT_MALLOC(c->buf);
c->cir_opa = c->buf;
c->opa_start_on_y = (uint16_t *)(c->buf + 2 * radius + 2);
c->x_start_on_y = (uint16_t *)(c->buf + 4 * radius + 4);
/*Special case, handle manually*/
if(radius == 1) {
c->cir_opa[0] = 180;
c->opa_start_on_y[0] = 0;
c->opa_start_on_y[1] = 1;
c->x_start_on_y[0] = 0;
return;
}
lv_coord_t * cir_x = lv_mem_buf_get((radius + 1) * 2 * 2 * sizeof(lv_coord_t));
lv_coord_t * cir_y = &cir_x[(radius + 1) * 2];
uint32_t y_8th_cnt = 0;
lv_point_t cp;
lv_coord_t tmp;
circ_init(&cp, &tmp, radius * 4); /*Upscale by 4*/
int32_t i;
uint32_t x_int[4];
uint32_t x_fract[4];
lv_coord_t cir_size = 0;
x_int[0] = cp.x >> 2;
x_fract[0] = 0;
/*Calculate an 1/8 circle*/
while(circ_cont(&cp)) {
/*Calculate 4 point of the circle */
for(i = 0; i < 4; i++) {
circ_next(&cp, &tmp);
if(circ_cont(&cp) == false) break;
x_int[i] = cp.x >> 2;
x_fract[i] = cp.x & 0x3;
}
if(i != 4) break;
/*All lines on the same x when downscaled*/
if(x_int[0] == x_int[3]) {
cir_x[cir_size] = x_int[0];
cir_y[cir_size] = y_8th_cnt;
c->cir_opa[cir_size] = x_fract[0] + x_fract[1] + x_fract[2] + x_fract[3];
c->cir_opa[cir_size] *= 16;
cir_size++;
}
/*Second line on new x when downscaled*/
else if(x_int[0] != x_int[1]) {
cir_x[cir_size] = x_int[0];
cir_y[cir_size] = y_8th_cnt;
c->cir_opa[cir_size] = x_fract[0];
c->cir_opa[cir_size] *= 16;
cir_size++;
cir_x[cir_size] = x_int[0] - 1;
cir_y[cir_size] = y_8th_cnt;
c->cir_opa[cir_size] = 1 * 4 + x_fract[1] + x_fract[2] + x_fract[3];;
c->cir_opa[cir_size] *= 16;
cir_size++;
}
/*Third line on new x when downscaled*/
else if(x_int[0] != x_int[2]) {
cir_x[cir_size] = x_int[0];
cir_y[cir_size] = y_8th_cnt;
c->cir_opa[cir_size] = x_fract[0] + x_fract[1];
c->cir_opa[cir_size] *= 16;
cir_size++;
cir_x[cir_size] = x_int[0] - 1;
cir_y[cir_size] = y_8th_cnt;
c->cir_opa[cir_size] = 2 * 4 + x_fract[2] + x_fract[3];;
c->cir_opa[cir_size] *= 16;
cir_size++;
}
/*Forth line on new x when downscaled*/
else {
cir_x[cir_size] = x_int[0];
cir_y[cir_size] = y_8th_cnt;
c->cir_opa[cir_size] = x_fract[0] + x_fract[1] + x_fract[2];
c->cir_opa[cir_size] *= 16;
cir_size++;
cir_x[cir_size] = x_int[0] - 1;
cir_y[cir_size] = y_8th_cnt;
c->cir_opa[cir_size] = 3 * 4 + x_fract[3];;
c->cir_opa[cir_size] *= 16;
cir_size++;
}
y_8th_cnt++;
}
/*The point on the 1/8 circle is special, calculate it manually*/
int32_t mid = radius * 723;
int32_t mid_int = mid >> 10;
if(cir_x[cir_size - 1] != mid_int || cir_y[cir_size - 1] != mid_int) {
int32_t tmp_val = mid - (mid_int << 10);
if(tmp_val <= 512) {
tmp_val = tmp_val * tmp_val * 2;
tmp_val = tmp_val >> (10 + 6);
}
else {
tmp_val = 1024 - tmp_val;
tmp_val = tmp_val * tmp_val * 2;
tmp_val = tmp_val >> (10 + 6);
tmp_val = 15 - tmp_val;
}
cir_x[cir_size] = mid_int;
cir_y[cir_size] = mid_int;
c->cir_opa[cir_size] = tmp_val;
c->cir_opa[cir_size] *= 16;
cir_size++;
}
/*Build the second octet by mirroring the first*/
for(i = cir_size - 2; i >= 0; i--, cir_size++) {
cir_x[cir_size] = cir_y[i];
cir_y[cir_size] = cir_x[i];
c->cir_opa[cir_size] = c->cir_opa[i];
}
lv_coord_t y = 0;
i = 0;
c->opa_start_on_y[0] = 0;
while(i < cir_size) {
c->opa_start_on_y[y] = i;
c->x_start_on_y[y] = cir_x[i];
for(; cir_y[i] == y && i < (int32_t)cir_size; i++) {
c->x_start_on_y[y] = LV_MIN(c->x_start_on_y[y], cir_x[i]);
}
y++;
}
lv_mem_buf_release(cir_x);
}
static lv_opa_t * get_next_line(_lv_draw_mask_radius_circle_dsc_t * c, lv_coord_t y, lv_coord_t * len,
lv_coord_t * x_start)
{
*len = c->opa_start_on_y[y + 1] - c->opa_start_on_y[y];
*x_start = c->x_start_on_y[y];
return &c->cir_opa[c->opa_start_on_y[y]];
}
LV_ATTRIBUTE_FAST_MEM static inline lv_opa_t mask_mix(lv_opa_t mask_act, lv_opa_t mask_new)
{
if(mask_new >= LV_OPA_MAX) return mask_act;
if(mask_new <= LV_OPA_MIN) return 0;
return LV_UDIV255(mask_act * mask_new);// >> 8);
}
#endif /*LV_DRAW_COMPLEX*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/draw/lv_draw_mask.c | C | apache-2.0 | 50,859 |
/**
* @file lv_draw_mask.h
*
*/
#ifndef LV_DRAW_MASK_H
#define LV_DRAW_MASK_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include <stdbool.h>
#include "../misc/lv_area.h"
#include "../misc/lv_color.h"
#include "../misc/lv_math.h"
/*********************
* DEFINES
*********************/
#define LV_MASK_ID_INV (-1)
#if LV_DRAW_COMPLEX
# define _LV_MASK_MAX_NUM 16
# ifndef _LV_MASK_BUF_MAX_SIZE
# define _LV_MASK_BUF_MAX_SIZE 2048 /*Should be >= than the max hor res*/
# endif
#else
# define _LV_MASK_MAX_NUM 1
#endif
/**********************
* TYPEDEFS
**********************/
enum {
LV_DRAW_MASK_RES_TRANSP,
LV_DRAW_MASK_RES_FULL_COVER,
LV_DRAW_MASK_RES_CHANGED,
LV_DRAW_MASK_RES_UNKNOWN
};
typedef uint8_t lv_draw_mask_res_t;
typedef struct {
void * param;
void * custom_id;
} _lv_draw_mask_saved_t;
typedef _lv_draw_mask_saved_t _lv_draw_mask_saved_arr_t[_LV_MASK_MAX_NUM];
#if LV_DRAW_COMPLEX == 0
static inline uint8_t lv_draw_mask_get_cnt(void)
{
return 0;
}
static inline bool lv_draw_mask_is_any(const lv_area_t * a)
{
LV_UNUSED(a);
return false;
}
#endif
#if LV_DRAW_COMPLEX
enum {
LV_DRAW_MASK_TYPE_LINE,
LV_DRAW_MASK_TYPE_ANGLE,
LV_DRAW_MASK_TYPE_RADIUS,
LV_DRAW_MASK_TYPE_FADE,
LV_DRAW_MASK_TYPE_MAP,
};
typedef uint8_t lv_draw_mask_type_t;
enum {
LV_DRAW_MASK_LINE_SIDE_LEFT = 0,
LV_DRAW_MASK_LINE_SIDE_RIGHT,
LV_DRAW_MASK_LINE_SIDE_TOP,
LV_DRAW_MASK_LINE_SIDE_BOTTOM,
};
/**
* A common callback type for every mask type.
* Used internally by the library.
*/
typedef lv_draw_mask_res_t (*lv_draw_mask_xcb_t)(lv_opa_t * mask_buf, lv_coord_t abs_x, lv_coord_t abs_y,
lv_coord_t len,
void * p);
typedef uint8_t lv_draw_mask_line_side_t;
typedef struct {
lv_draw_mask_xcb_t cb;
lv_draw_mask_type_t type;
} _lv_draw_mask_common_dsc_t;
typedef struct {
/*The first element must be the common descriptor*/
_lv_draw_mask_common_dsc_t dsc;
struct {
/*First point*/
lv_point_t p1;
/*Second point*/
lv_point_t p2;
/*Which side to keep?*/
lv_draw_mask_line_side_t side : 2;
} cfg;
/*A point of the line*/
lv_point_t origo;
/*X / (1024*Y) steepness (X is 0..1023 range). What is the change of X in 1024 Y?*/
int32_t xy_steep;
/*Y / (1024*X) steepness (Y is 0..1023 range). What is the change of Y in 1024 X?*/
int32_t yx_steep;
/*Helper which stores yx_steep for flat lines and xy_steep for steep (non flat) lines*/
int32_t steep;
/*Steepness in 1 px in 0..255 range. Used only by flat lines.*/
int32_t spx;
/*1: It's a flat line? (Near to horizontal)*/
uint8_t flat : 1;
/*Invert the mask. The default is: Keep the left part.
*It is used to select left/right/top/bottom*/
uint8_t inv: 1;
} lv_draw_mask_line_param_t;
typedef struct {
/*The first element must be the common descriptor*/
_lv_draw_mask_common_dsc_t dsc;
struct {
lv_point_t vertex_p;
lv_coord_t start_angle;
lv_coord_t end_angle;
} cfg;
lv_draw_mask_line_param_t start_line;
lv_draw_mask_line_param_t end_line;
uint16_t delta_deg;
} lv_draw_mask_angle_param_t;
typedef struct {
uint8_t * buf;
lv_opa_t * cir_opa; /*Opacity of values on the circumference of an 1/4 circle*/
uint16_t * x_start_on_y; /*The x coordinate of the circle for each y value*/
uint16_t * opa_start_on_y; /*The index of `cir_opa` for each y value*/
int32_t life; /*How many times the entry way used*/
uint32_t used_cnt; /*Like a semaphore to count the referencing masks*/
lv_coord_t radius; /*The radius of the entry*/
} _lv_draw_mask_radius_circle_dsc_t;
typedef _lv_draw_mask_radius_circle_dsc_t _lv_draw_mask_radius_circle_dsc_arr_t[LV_CIRCLE_CACHE_SIZE];
typedef struct {
/*The first element must be the common descriptor*/
_lv_draw_mask_common_dsc_t dsc;
struct {
lv_area_t rect;
lv_coord_t radius;
/*Invert the mask. 0: Keep the pixels inside.*/
uint8_t outer: 1;
} cfg;
_lv_draw_mask_radius_circle_dsc_t * circle;
} lv_draw_mask_radius_param_t;
typedef struct {
/*The first element must be the common descriptor*/
_lv_draw_mask_common_dsc_t dsc;
struct {
lv_area_t coords;
lv_coord_t y_top;
lv_coord_t y_bottom;
lv_opa_t opa_top;
lv_opa_t opa_bottom;
} cfg;
} lv_draw_mask_fade_param_t;
typedef struct _lv_draw_mask_map_param_t {
/*The first element must be the common descriptor*/
_lv_draw_mask_common_dsc_t dsc;
struct {
lv_area_t coords;
const lv_opa_t * map;
} cfg;
} lv_draw_mask_map_param_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Add a draw mask. Everything drawn after it (until removing the mask) will be affected by the mask.
* @param param an initialized mask parameter. Only the pointer is saved.
* @param custom_id a custom pointer to identify the mask. Used in `lv_draw_mask_remove_custom`.
* @return the an integer, the ID of the mask. Can be used in `lv_draw_mask_remove_id`.
*/
int16_t lv_draw_mask_add(void * param, void * custom_id);
//! @cond Doxygen_Suppress
/**
* Apply the added buffers on a line. Used internally by the library's drawing routines.
* @param mask_buf store the result mask here. Has to be `len` byte long. Should be initialized with `0xFF`.
* @param abs_x absolute X coordinate where the line to calculate start
* @param abs_y absolute Y coordinate where the line to calculate start
* @param len length of the line to calculate (in pixel count)
* @return One of these values:
* - `LV_DRAW_MASK_RES_FULL_TRANSP`: the whole line is transparent. `mask_buf` is not set to zero
* - `LV_DRAW_MASK_RES_FULL_COVER`: the whole line is fully visible. `mask_buf` is unchanged
* - `LV_DRAW_MASK_RES_CHANGED`: `mask_buf` has changed, it shows the desired opacity of each pixel in the given line
*/
LV_ATTRIBUTE_FAST_MEM lv_draw_mask_res_t lv_draw_mask_apply(lv_opa_t * mask_buf, lv_coord_t abs_x, lv_coord_t abs_y,
lv_coord_t len);
/**
* Apply the specified buffers on a line. Used internally by the library's drawing routines.
* @param mask_buf store the result mask here. Has to be `len` byte long. Should be initialized with `0xFF`.
* @param abs_x absolute X coordinate where the line to calculate start
* @param abs_y absolute Y coordinate where the line to calculate start
* @param len length of the line to calculate (in pixel count)
* @param ids ID array of added buffers
* @param ids_count number of ID array
* @return One of these values:
* - `LV_DRAW_MASK_RES_FULL_TRANSP`: the whole line is transparent. `mask_buf` is not set to zero
* - `LV_DRAW_MASK_RES_FULL_COVER`: the whole line is fully visible. `mask_buf` is unchanged
* - `LV_DRAW_MASK_RES_CHANGED`: `mask_buf` has changed, it shows the desired opacity of each pixel in the given line
*/
LV_ATTRIBUTE_FAST_MEM lv_draw_mask_res_t lv_draw_mask_apply_ids(lv_opa_t * mask_buf, lv_coord_t abs_x, lv_coord_t abs_y,
lv_coord_t len, const int16_t *ids, int16_t ids_count);
//! @endcond
/**
* Remove a mask with a given ID
* @param id the ID of the mask. Returned by `lv_draw_mask_add`
* @return the parameter of the removed mask.
* If more masks have `custom_id` ID then the last mask's parameter will be returned
*/
void * lv_draw_mask_remove_id(int16_t id);
/**
* Remove all mask with a given custom ID
* @param custom_id a pointer used in `lv_draw_mask_add`
* @return return the parameter of the removed mask.
* If more masks have `custom_id` ID then the last mask's parameter will be returned
*/
void * lv_draw_mask_remove_custom(void * custom_id);
/**
* Free the data from the parameter.
* It's called inside `lv_draw_mask_remove_id` and `lv_draw_mask_remove_custom`
* Needs to be called only in special cases when the mask is not added by `lv_draw_mask_add`
* and not removed by `lv_draw_mask_remove_id` or `lv_draw_mask_remove_custom`
* @param p pointer to a mask parameter
*/
void lv_draw_mask_free_param(void * p);
/**
* Called by LVGL the rendering of a screen is ready to clean up
* the temporal (cache) data of the masks
*/
void _lv_draw_mask_cleanup(void);
//! @cond Doxygen_Suppress
/**
* Count the currently added masks
* @return number of active masks
*/
LV_ATTRIBUTE_FAST_MEM uint8_t lv_draw_mask_get_cnt(void);
/**
* Check if there is any added draw mask
* @param a an area to test for affecting masks.
* @return true: there is t least 1 draw mask; false: there are no draw masks
*/
bool lv_draw_mask_is_any(const lv_area_t * a);
//! @endcond
/**
*Initialize a line mask from two points.
* @param param pointer to a `lv_draw_mask_param_t` to initialize
* @param p1x X coordinate of the first point of the line
* @param p1y Y coordinate of the first point of the line
* @param p2x X coordinate of the second point of the line
* @param p2y y coordinate of the second point of the line
* @param side and element of `lv_draw_mask_line_side_t` to describe which side to keep.
* With `LV_DRAW_MASK_LINE_SIDE_LEFT/RIGHT` and horizontal line all pixels are kept
* With `LV_DRAW_MASK_LINE_SIDE_TOP/BOTTOM` and vertical line all pixels are kept
*/
void lv_draw_mask_line_points_init(lv_draw_mask_line_param_t * param, lv_coord_t p1x, lv_coord_t p1y, lv_coord_t p2x,
lv_coord_t p2y, lv_draw_mask_line_side_t side);
/**
*Initialize a line mask from a point and an angle.
* @param param pointer to a `lv_draw_mask_param_t` to initialize
* @param px X coordinate of a point of the line
* @param py X coordinate of a point of the line
* @param angle right 0 deg, bottom: 90
* @param side and element of `lv_draw_mask_line_side_t` to describe which side to keep.
* With `LV_DRAW_MASK_LINE_SIDE_LEFT/RIGHT` and horizontal line all pixels are kept
* With `LV_DRAW_MASK_LINE_SIDE_TOP/BOTTOM` and vertical line all pixels are kept
*/
void lv_draw_mask_line_angle_init(lv_draw_mask_line_param_t * param, lv_coord_t p1x, lv_coord_t py, int16_t angle,
lv_draw_mask_line_side_t side);
/**
* Initialize an angle mask.
* @param param pointer to a `lv_draw_mask_param_t` to initialize
* @param vertex_x X coordinate of the angle vertex (absolute coordinates)
* @param vertex_y Y coordinate of the angle vertex (absolute coordinates)
* @param start_angle start angle in degrees. 0 deg on the right, 90 deg, on the bottom
* @param end_angle end angle
*/
void lv_draw_mask_angle_init(lv_draw_mask_angle_param_t * param, lv_coord_t vertex_x, lv_coord_t vertex_y,
lv_coord_t start_angle, lv_coord_t end_angle);
/**
* Initialize a fade mask.
* @param param param pointer to a `lv_draw_mask_param_t` to initialize
* @param rect coordinates of the rectangle to affect (absolute coordinates)
* @param radius radius of the rectangle
* @param inv true: keep the pixels inside the rectangle; keep the pixels outside of the rectangle
*/
void lv_draw_mask_radius_init(lv_draw_mask_radius_param_t * param, const lv_area_t * rect, lv_coord_t radius, bool inv);
/**
* Initialize a fade mask.
* @param param pointer to a `lv_draw_mask_param_t` to initialize
* @param coords coordinates of the area to affect (absolute coordinates)
* @param opa_top opacity on the top
* @param y_top at which coordinate start to change to opacity to `opa_bottom`
* @param opa_bottom opacity at the bottom
* @param y_bottom at which coordinate reach `opa_bottom`.
*/
void lv_draw_mask_fade_init(lv_draw_mask_fade_param_t * param, const lv_area_t * coords, lv_opa_t opa_top,
lv_coord_t y_top,
lv_opa_t opa_bottom, lv_coord_t y_bottom);
/**
* Initialize a map mask.
* @param param pointer to a `lv_draw_mask_param_t` to initialize
* @param coords coordinates of the map (absolute coordinates)
* @param map array of bytes with the mask values
*/
void lv_draw_mask_map_init(lv_draw_mask_map_param_t * param, const lv_area_t * coords, const lv_opa_t * map);
#endif /*LV_DRAW_COMPLEX*/
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_DRAW_MASK_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/draw/lv_draw_mask.h | C | apache-2.0 | 12,661 |
/**
* @file lv_draw_rect.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_draw_rect.h"
#include "lv_draw_blend.h"
#include "lv_draw_mask.h"
#include "../misc/lv_math.h"
#include "../misc/lv_txt_ap.h"
#include "../core/lv_refr.h"
#include "../misc/lv_assert.h"
/*********************
* DEFINES
*********************/
#define SHADOW_UPSCALE_SHIFT 6
#define SHADOW_ENHANCE 1
#define SPLIT_LIMIT 50
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
#if LV_USE_EXTERNAL_RENDERER == 0
LV_ATTRIBUTE_FAST_MEM static void draw_bg(const lv_area_t * coords, const lv_area_t * clip_area,
const lv_draw_rect_dsc_t * dsc);
LV_ATTRIBUTE_FAST_MEM static void draw_bg_img(const lv_area_t * coords, const lv_area_t * clip,
const lv_draw_rect_dsc_t * dsc);
LV_ATTRIBUTE_FAST_MEM static void draw_border(const lv_area_t * coords, const lv_area_t * clip,
const lv_draw_rect_dsc_t * dsc);
static void draw_outline(const lv_area_t * coords, const lv_area_t * clip, const lv_draw_rect_dsc_t * dsc);
#if LV_DRAW_COMPLEX
LV_ATTRIBUTE_FAST_MEM static void draw_shadow(const lv_area_t * coords, const lv_area_t * clip,
const lv_draw_rect_dsc_t * dsc);
LV_ATTRIBUTE_FAST_MEM static void shadow_draw_corner_buf(const lv_area_t * coords, uint16_t * sh_buf, lv_coord_t s,
lv_coord_t r);
LV_ATTRIBUTE_FAST_MEM static void shadow_blur_corner(lv_coord_t size, lv_coord_t sw, uint16_t * sh_ups_buf);
#endif
void draw_border_generic(const lv_area_t * clip_area, const lv_area_t * outer_area, const lv_area_t * inner_area,
lv_coord_t rout, lv_coord_t rin, lv_color_t color, lv_opa_t opa, lv_blend_mode_t blend_mode);
static void draw_border_simple(const lv_area_t * clip, const lv_area_t * outer_area, const lv_area_t * inner_area,
lv_color_t color, lv_opa_t opa);
#if LV_DRAW_COMPLEX
LV_ATTRIBUTE_FAST_MEM static inline lv_color_t grad_get(const lv_draw_rect_dsc_t * dsc, lv_coord_t s, lv_coord_t i);
#endif
#endif
/**********************
* STATIC VARIABLES
**********************/
#if defined(LV_SHADOW_CACHE_SIZE) && LV_SHADOW_CACHE_SIZE > 0
static uint8_t sh_cache[LV_SHADOW_CACHE_SIZE * LV_SHADOW_CACHE_SIZE];
static int32_t sh_cache_size = -1;
static int32_t sh_cache_r = -1;
#endif
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
LV_ATTRIBUTE_FAST_MEM void lv_draw_rect_dsc_init(lv_draw_rect_dsc_t * dsc)
{
lv_memset_00(dsc, sizeof(lv_draw_rect_dsc_t));
dsc->bg_color = lv_color_white();
dsc->bg_grad_color = lv_color_black();
dsc->border_color = lv_color_black();
dsc->shadow_color = lv_color_black();
dsc->bg_grad_color_stop = 0xFF;
dsc->bg_img_symbol_font = LV_FONT_DEFAULT;
dsc->bg_opa = LV_OPA_COVER;
dsc->bg_img_opa = LV_OPA_COVER;
dsc->outline_opa = LV_OPA_COVER;
dsc->border_opa = LV_OPA_COVER;
dsc->shadow_opa = LV_OPA_COVER;
dsc->border_side = LV_BORDER_SIDE_FULL;
}
#if LV_USE_EXTERNAL_RENDERER == 0
/**
* Draw a rectangle
* @param coords the coordinates of the rectangle
* @param mask the rectangle will be drawn only in this mask
* @param dsc pointer to an initialized `lv_draw_rect_dsc_t` variable
*/
void lv_draw_rect(const lv_area_t * coords, const lv_area_t * clip, const lv_draw_rect_dsc_t * dsc)
{
if(lv_area_get_height(coords) < 1 || lv_area_get_width(coords) < 1) return;
#if LV_DRAW_COMPLEX
draw_shadow(coords, clip, dsc);
#endif
draw_bg(coords, clip, dsc);
draw_bg_img(coords, clip, dsc);
draw_border(coords, clip, dsc);
draw_outline(coords, clip, dsc);
LV_ASSERT_MEM_INTEGRITY();
}
/**********************
* STATIC FUNCTIONS
**********************/
LV_ATTRIBUTE_FAST_MEM static void draw_bg(const lv_area_t * coords, const lv_area_t * clip_area,
const lv_draw_rect_dsc_t * dsc)
{
if(dsc->bg_opa <= LV_OPA_MIN) return;
lv_area_t coords_bg;
lv_area_copy(&coords_bg, coords);
/*If the border fully covers make the bg area 1px smaller to avoid artifacts on the corners*/
if(dsc->border_width > 1 && dsc->border_opa >= LV_OPA_MAX && dsc->radius != 0) {
coords_bg.x1 += (dsc->border_side & LV_BORDER_SIDE_LEFT) ? 1 : 0;
coords_bg.y1 += (dsc->border_side & LV_BORDER_SIDE_TOP) ? 1 : 0;
coords_bg.x2 -= (dsc->border_side & LV_BORDER_SIDE_RIGHT) ? 1 : 0;
coords_bg.y2 -= (dsc->border_side & LV_BORDER_SIDE_BOTTOM) ? 1 : 0;
}
lv_opa_t opa = dsc->bg_opa >= LV_OPA_MAX ? LV_OPA_COVER : dsc->bg_opa;
lv_grad_dir_t grad_dir = dsc->bg_grad_dir;
if(dsc->bg_color.full == dsc->bg_grad_color.full) grad_dir = LV_GRAD_DIR_NONE;
bool mask_any = lv_draw_mask_is_any(&coords_bg);
/*Most simple case: just a plain rectangle*/
if(!mask_any && dsc->radius == 0 && (grad_dir == LV_GRAD_DIR_NONE)) {
_lv_blend_fill(clip_area, &coords_bg, dsc->bg_color, NULL,
LV_DRAW_MASK_RES_FULL_COVER, opa, dsc->blend_mode);
return;
}
/*Complex case: there is gradient, mask, or radius*/
#if LV_DRAW_COMPLEX == 0
LV_LOG_WARN("Can't draw complex rectangle because LV_DRAW_COMPLEX = 0");
#else
/*Get clipped fill area which is the real draw area.
*It is always the same or inside `fill_area`*/
lv_area_t draw_area;
if(!_lv_area_intersect(&draw_area, &coords_bg, clip_area)) return;
/*Get the real radius. Can't be larger than the half of the shortest side */
lv_coord_t coords_w = lv_area_get_width(&coords_bg);
lv_coord_t coords_h = lv_area_get_height(&coords_bg);
int32_t short_side = LV_MIN(coords_w, coords_h);
int32_t rout = LV_MIN(dsc->radius, short_side >> 1);
/*Add a radius mask if there is radius*/
int32_t draw_area_w = lv_area_get_width(&draw_area);
int16_t mask_rout_id = LV_MASK_ID_INV;
lv_opa_t * mask_buf = NULL;
lv_draw_mask_radius_param_t mask_rout_param;
if(rout > 0 || mask_any) {
mask_buf = lv_mem_buf_get(draw_area_w);
lv_draw_mask_radius_init(&mask_rout_param, &coords_bg, rout, false);
mask_rout_id = lv_draw_mask_add(&mask_rout_param, NULL);
}
/*In case of horizontal gradient pre-compute a line with a gradient*/
lv_color_t * grad_map = NULL;
lv_color_t * grad_map_ofs = NULL;
if(grad_dir == LV_GRAD_DIR_HOR) {
grad_map = lv_mem_buf_get(coords_w * sizeof(lv_color_t));
int32_t i;
for(i = 0; i < coords_w; i++) {
grad_map[i] = grad_get(dsc, coords_w, i);
}
grad_map_ofs = grad_map;
if(dsc->bg_grad_dir == LV_GRAD_DIR_HOR) grad_map_ofs += draw_area.x1 - coords_bg.x1;
}
int32_t h;
lv_draw_mask_res_t mask_res;
lv_area_t blend_area;
blend_area.x1 = draw_area.x1;
blend_area.x2 = draw_area.x2;
/*There is another mask too. Draw line by line. */
if(mask_any) {
for(h = draw_area.y1; h <= draw_area.y2; h++) {
blend_area.y1 = h;
blend_area.y2 = h;
/* Initialize the mask to opa instead of 0xFF and blend with LV_OPA_COVER.
* It saves calculating the final opa in _lv_blend_fill*/
lv_memset(mask_buf, opa, draw_area_w);
mask_res = lv_draw_mask_apply(mask_buf, draw_area.x1, h, draw_area_w);
if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) mask_res = LV_DRAW_MASK_RES_CHANGED;
if(grad_dir == LV_GRAD_DIR_NONE) {
_lv_blend_fill(clip_area, &blend_area, dsc->bg_color, mask_buf, mask_res, LV_OPA_COVER, dsc->blend_mode);
}
else if(grad_dir == LV_GRAD_DIR_HOR) {
_lv_blend_map(clip_area, &blend_area, grad_map_ofs, mask_buf, mask_res, LV_OPA_COVER, dsc->blend_mode);
}
else if(grad_dir == LV_GRAD_DIR_VER) {
lv_color_t c = grad_get(dsc, coords_h, h - coords_bg.y1);
_lv_blend_fill(clip_area, &blend_area, c, mask_buf, mask_res, LV_OPA_COVER, dsc->blend_mode);
}
}
goto bg_clean_up;
}
/* Draw the top of the rectangle line by line and mirror it to the bottom.
* If there is no radius this cycle won't run because `h` is always `>= h_end`*/
blend_area.x1 = draw_area.x1;
blend_area.x2 = draw_area.x2;
for(h = 0; h < rout; h++) {
lv_coord_t top_y = coords_bg.y1 + h;
lv_coord_t bottom_y = coords_bg.y2 - h;
if(top_y < draw_area.y1 && bottom_y > draw_area.y2) continue; /*This line is clipped now*/
/* Initialize the mask to opa instead of 0xFF and blend with LV_OPA_COVER.
* It saves calculating the final opa in _lv_blend_fill*/
lv_memset(mask_buf, opa, draw_area_w);
mask_res = lv_draw_mask_apply(mask_buf, blend_area.x1, top_y, draw_area_w);
if(top_y >= draw_area.y1) {
blend_area.y1 = top_y;
blend_area.y2 = top_y;
if(grad_dir == LV_GRAD_DIR_NONE) {
_lv_blend_fill(clip_area, &blend_area, dsc->bg_color, mask_buf, mask_res, LV_OPA_COVER, dsc->blend_mode);
}
else if(grad_dir == LV_GRAD_DIR_HOR) {
_lv_blend_map(clip_area, &blend_area, grad_map_ofs, mask_buf, mask_res, LV_OPA_COVER, dsc->blend_mode);
}
else if(grad_dir == LV_GRAD_DIR_VER) {
lv_color_t c = grad_get(dsc, coords_h, top_y - coords_bg.y1);
_lv_blend_fill(clip_area, &blend_area, c, mask_buf, mask_res, LV_OPA_COVER, dsc->blend_mode);
}
}
if(bottom_y <= draw_area.y2) {
blend_area.y1 = bottom_y;
blend_area.y2 = bottom_y;
if(grad_dir == LV_GRAD_DIR_NONE) {
_lv_blend_fill(clip_area, &blend_area, dsc->bg_color, mask_buf, mask_res, LV_OPA_COVER, dsc->blend_mode);
}
else if(grad_dir == LV_GRAD_DIR_HOR) {
_lv_blend_map(clip_area, &blend_area, grad_map_ofs, mask_buf, mask_res, LV_OPA_COVER, dsc->blend_mode);
}
else if(grad_dir == LV_GRAD_DIR_VER) {
lv_color_t c = grad_get(dsc, coords_h, bottom_y - coords_bg.y1);
_lv_blend_fill(clip_area, &blend_area, c, mask_buf, mask_res, LV_OPA_COVER, dsc->blend_mode);
}
}
}
/* Draw the center of the rectangle.*/
/*If no other masks and no gradient, the center is a simple rectangle*/
if(!mask_any && grad_dir == LV_GRAD_DIR_NONE) {
blend_area.y1 = coords_bg.y1 + rout;
blend_area.y2 = coords_bg.y2 - rout;
_lv_blend_fill(clip_area, &blend_area, dsc->bg_color, mask_buf, LV_DRAW_MASK_RES_FULL_COVER, opa, dsc->blend_mode);
}
/*With gradient and/or mask draw line by line*/
else {
mask_res = LV_DRAW_MASK_RES_FULL_COVER;
int32_t h_end = coords_bg.y2 - rout;
for(h = coords_bg.y1 + rout; h <= h_end; h++) {
/*If there is no other mask do not apply mask as in the center there is no radius to mask*/
if(mask_any) {
lv_memset_ff(mask_buf, draw_area_w);
mask_res = lv_draw_mask_apply(mask_buf, draw_area.x1, h, draw_area_w);
}
blend_area.y1 = h;
blend_area.y2 = h;
if(grad_dir == LV_GRAD_DIR_NONE) {
_lv_blend_fill(clip_area, &blend_area, dsc->bg_color, mask_buf, mask_res, opa, dsc->blend_mode);
}
else if(grad_dir == LV_GRAD_DIR_HOR) {
_lv_blend_map(clip_area, &blend_area, grad_map_ofs, mask_buf, mask_res, opa, dsc->blend_mode);
}
else if(grad_dir == LV_GRAD_DIR_VER) {
lv_color_t c = grad_get(dsc, coords_h, h - coords_bg.y1);
_lv_blend_fill(clip_area, &blend_area, c, mask_buf, mask_res, opa, dsc->blend_mode);
}
}
}
bg_clean_up:
if(grad_map) lv_mem_buf_release(grad_map);
if(mask_buf) lv_mem_buf_release(mask_buf);
if(mask_rout_id != LV_MASK_ID_INV) {
lv_draw_mask_remove_id(mask_rout_id);
lv_draw_mask_free_param(&mask_rout_param);
}
#endif
}
LV_ATTRIBUTE_FAST_MEM static void draw_bg_img(const lv_area_t * coords, const lv_area_t * clip,
const lv_draw_rect_dsc_t * dsc)
{
if(dsc->bg_img_src == NULL) return;
if(dsc->bg_img_opa <= LV_OPA_MIN) return;
lv_img_src_t src_type = lv_img_src_get_type(dsc->bg_img_src);
if(src_type == LV_IMG_SRC_SYMBOL) {
lv_point_t size;
lv_txt_get_size(&size, dsc->bg_img_src, dsc->bg_img_symbol_font, 0, 0, LV_COORD_MAX, LV_TEXT_FLAG_NONE);
lv_area_t a;
a.x1 = coords->x1 + lv_area_get_width(coords) / 2 - size.x / 2;
a.x2 = a.x1 + size.x - 1;
a.y1 = coords->y1 + lv_area_get_height(coords) / 2 - size.y / 2;
a.y2 = a.y1 + size.y - 1;
lv_draw_label_dsc_t label_draw_dsc;
lv_draw_label_dsc_init(&label_draw_dsc);
label_draw_dsc.font = dsc->bg_img_symbol_font;
label_draw_dsc.color = dsc->bg_img_recolor;
label_draw_dsc.opa = dsc->bg_img_opa;
lv_draw_label(&a, clip, &label_draw_dsc, dsc->bg_img_src, NULL);
}
else {
lv_img_header_t header;
lv_res_t res = lv_img_decoder_get_info(dsc->bg_img_src, &header);
if(res != LV_RES_OK) {
LV_LOG_WARN("Couldn't read the background image");
return;
}
lv_draw_img_dsc_t img_dsc;
lv_draw_img_dsc_init(&img_dsc);
img_dsc.blend_mode = dsc->blend_mode;
img_dsc.recolor = dsc->bg_img_recolor;
img_dsc.recolor_opa = dsc->bg_img_recolor_opa;
img_dsc.opa = dsc->bg_img_opa;
/*Center align*/
if(dsc->bg_img_tiled == false) {
lv_area_t area;
area.x1 = coords->x1 + lv_area_get_width(coords) / 2 - header.w / 2;
area.y1 = coords->y1 + lv_area_get_height(coords) / 2 - header.h / 2;
area.x2 = area.x1 + header.w - 1;
area.y2 = area.y1 + header.h - 1;
lv_draw_img(&area, clip, dsc->bg_img_src, &img_dsc);
}
else {
lv_area_t area;
area.y1 = coords->y1;
area.y2 = area.y1 + header.h - 1;
for(; area.y1 <= coords->y2; area.y1 += header.h, area.y2 += header.h) {
area.x1 = coords->x1;
area.x2 = area.x1 + header.w - 1;
for(; area.x1 <= coords->x2; area.x1 += header.w, area.x2 += header.w) {
lv_draw_img(&area, clip, dsc->bg_img_src, &img_dsc);
}
}
}
}
}
LV_ATTRIBUTE_FAST_MEM static void draw_border(const lv_area_t * coords, const lv_area_t * clip,
const lv_draw_rect_dsc_t * dsc)
{
if(dsc->border_opa <= LV_OPA_MIN) return;
if(dsc->border_width == 0) return;
if(dsc->border_side == LV_BORDER_SIDE_NONE) return;
if(dsc->border_post) return;
int32_t coords_w = lv_area_get_width(coords);
int32_t coords_h = lv_area_get_height(coords);
int32_t rout = dsc->radius;
int32_t short_side = LV_MIN(coords_w, coords_h);
if(rout > short_side >> 1) rout = short_side >> 1;
/*Get the inner area*/
lv_area_t area_inner;
lv_area_copy(&area_inner, coords);
area_inner.x1 += ((dsc->border_side & LV_BORDER_SIDE_LEFT) ? dsc->border_width : - (dsc->border_width + rout));
area_inner.x2 -= ((dsc->border_side & LV_BORDER_SIDE_RIGHT) ? dsc->border_width : - (dsc->border_width + rout));
area_inner.y1 += ((dsc->border_side & LV_BORDER_SIDE_TOP) ? dsc->border_width : - (dsc->border_width + rout));
area_inner.y2 -= ((dsc->border_side & LV_BORDER_SIDE_BOTTOM) ? dsc->border_width : - (dsc->border_width + rout));
lv_coord_t rin = rout - dsc->border_width;
if(rin < 0) rin = 0;
draw_border_generic(clip, coords, &area_inner, rout, rin, dsc->border_color, dsc->border_opa, dsc->blend_mode);
}
#if LV_DRAW_COMPLEX
LV_ATTRIBUTE_FAST_MEM static inline lv_color_t grad_get(const lv_draw_rect_dsc_t * dsc, lv_coord_t s, lv_coord_t i)
{
int32_t min = (dsc->bg_main_color_stop * s) >> 8;
if(i <= min) return dsc->bg_color;
int32_t max = (dsc->bg_grad_color_stop * s) >> 8;
if(i >= max) return dsc->bg_grad_color;
int32_t d = dsc->bg_grad_color_stop - dsc->bg_main_color_stop;
d = (s * d) >> 8;
i -= min;
lv_opa_t mix = (i * 255) / d;
return lv_color_mix(dsc->bg_grad_color, dsc->bg_color, mix);
}
LV_ATTRIBUTE_FAST_MEM static void draw_shadow(const lv_area_t * coords, const lv_area_t * clip,
const lv_draw_rect_dsc_t * dsc)
{
/*Check whether the shadow is visible*/
if(dsc->shadow_width == 0) return;
if(dsc->shadow_opa <= LV_OPA_MIN) return;
if(dsc->shadow_width == 1 && dsc->shadow_spread <= 0 &&
dsc->shadow_ofs_x == 0 && dsc->shadow_ofs_y == 0) {
return;
}
/*Calculate the rectangle which is blurred to get the shadow in `shadow_area`*/
lv_area_t core_area;
core_area.x1 = coords->x1 + dsc->shadow_ofs_x - dsc->shadow_spread;
core_area.x2 = coords->x2 + dsc->shadow_ofs_x + dsc->shadow_spread;
core_area.y1 = coords->y1 + dsc->shadow_ofs_y - dsc->shadow_spread;
core_area.y2 = coords->y2 + dsc->shadow_ofs_y + dsc->shadow_spread;
/*Calculate the bounding box of the shadow*/
lv_area_t shadow_area;
shadow_area.x1 = core_area.x1 - dsc->shadow_width / 2 - 1;
shadow_area.x2 = core_area.x2 + dsc->shadow_width / 2 + 1;
shadow_area.y1 = core_area.y1 - dsc->shadow_width / 2 - 1;
shadow_area.y2 = core_area.y2 + dsc->shadow_width / 2 + 1;
lv_opa_t opa = dsc->shadow_opa;
if(opa > LV_OPA_MAX) opa = LV_OPA_COVER;
/*Get clipped draw area which is the real draw area.
*It is always the same or inside `shadow_area`*/
lv_area_t draw_area;
if(!_lv_area_intersect(&draw_area, &shadow_area, clip)) return;
/*Consider 1 px smaller bg to be sure the edge will be covered by the shadow*/
lv_area_t bg_area;
lv_area_copy(&bg_area, coords);
lv_area_increase(&bg_area, -1, -1);
/*Get the clamped radius*/
int32_t r_bg = dsc->radius;
lv_coord_t short_side = LV_MIN(lv_area_get_width(&bg_area), lv_area_get_height(&bg_area));
if(r_bg > short_side >> 1) r_bg = short_side >> 1;
/*Get the clamped radius*/
int32_t r_sh = dsc->radius;
short_side = LV_MIN(lv_area_get_width(&core_area), lv_area_get_height(&core_area));
if(r_sh > short_side >> 1) r_sh = short_side >> 1;
/*Get how many pixels are affected by the blur on the corners*/
int32_t corner_size = dsc->shadow_width + r_sh;
lv_opa_t * sh_buf;
#if LV_SHADOW_CACHE_SIZE
if(sh_cache_size == corner_size && sh_cache_r == r_sh) {
/*Use the cache if available*/
sh_buf = lv_mem_buf_get(corner_size * corner_size);
lv_memcpy(sh_buf, sh_cache, corner_size * corner_size);
}
else {
/*A larger buffer is required for calculation*/
sh_buf = lv_mem_buf_get(corner_size * corner_size * sizeof(uint16_t));
shadow_draw_corner_buf(&core_area, (uint16_t *)sh_buf, dsc->shadow_width, r_sh);
/*Cache the corner if it fits into the cache size*/
if((uint32_t)corner_size * corner_size < sizeof(sh_cache)) {
lv_memcpy(sh_cache, sh_buf, corner_size * corner_size);
sh_cache_size = corner_size;
sh_cache_r = r_sh;
}
}
#else
sh_buf = lv_mem_buf_get(corner_size * corner_size * sizeof(uint16_t));
shadow_draw_corner_buf(&core_area, (uint16_t *)sh_buf, dsc->shadow_width, r_sh);
#endif
/*Skip a lot of masking if the background will cover the shadow that would be masked out*/
bool mask_any = lv_draw_mask_is_any(&shadow_area);
bool simple = true;
if(mask_any || dsc->bg_opa < LV_OPA_COVER) simple = false;
/*Create a radius mask to clip remove shadow on the bg area*/
lv_draw_mask_res_t mask_res;
lv_draw_mask_radius_param_t mask_rout_param;
int16_t mask_rout_id = LV_MASK_ID_INV;
if(!simple) {
lv_draw_mask_radius_init(&mask_rout_param, &bg_area, r_bg, true);
mask_rout_id = lv_draw_mask_add(&mask_rout_param, NULL);
}
lv_opa_t * mask_buf = lv_mem_buf_get(lv_area_get_width(&shadow_area));
lv_area_t blend_area;
lv_area_t clip_area_sub;
lv_opa_t ** mask_act;
lv_opa_t * sh_buf_tmp;
lv_coord_t y;
bool simple_sub;
lv_coord_t w_half = shadow_area.x1 + lv_area_get_width(&shadow_area) / 2;
lv_coord_t h_half = shadow_area.y1 + lv_area_get_height(&shadow_area) / 2;
/*Draw the corners if they are on the current clip area and not fully covered by the bg*/
/*Top right corner*/
blend_area.x2 = shadow_area.x2;
blend_area.x1 = shadow_area.x2 - corner_size + 1;
blend_area.y1 = shadow_area.y1;
blend_area.y2 = shadow_area.y1 + corner_size - 1;
/*Do not overdraw the top other corners*/
blend_area.x1 = LV_MAX(blend_area.x1, w_half);
blend_area.y2 = LV_MIN(blend_area.y2, h_half);
if(_lv_area_intersect(&clip_area_sub, &blend_area, clip) && !_lv_area_is_in(&clip_area_sub, &bg_area, r_bg)) {
lv_coord_t w = lv_area_get_width(&clip_area_sub);
sh_buf_tmp = sh_buf;
sh_buf_tmp += (clip_area_sub.y1 - shadow_area.y1) * corner_size;
sh_buf_tmp += clip_area_sub.x1 - (shadow_area.x2 - corner_size + 1);
/*Do not mask if out of the bg*/
if(simple && _lv_area_is_out(&clip_area_sub, &bg_area, r_bg)) simple_sub = true;
else simple_sub = simple;
mask_act = simple_sub ? &sh_buf_tmp : &mask_buf;
if(w > 0) {
mask_res = LV_DRAW_MASK_RES_CHANGED; /*In simple mode it won't be overwritten*/
for(y = clip_area_sub.y1; y <= clip_area_sub.y2; y++) {
blend_area.y1 = y;
blend_area.y2 = y;
if(!simple_sub) {
lv_memcpy(mask_buf, sh_buf_tmp, corner_size);
mask_res = lv_draw_mask_apply(mask_buf, clip_area_sub.x1, y, w);
if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) mask_res = LV_DRAW_MASK_RES_CHANGED;
}
_lv_blend_fill(&clip_area_sub, &blend_area, dsc->shadow_color, *mask_act, mask_res, dsc->shadow_opa, dsc->blend_mode);
sh_buf_tmp += corner_size;
}
}
}
/*Bottom right corner.
*Almost the same as top right just read the lines of `sh_buf` from then end*/
blend_area.x2 = shadow_area.x2;
blend_area.x1 = shadow_area.x2 - corner_size + 1;
blend_area.y1 = shadow_area.y2 - corner_size + 1;
blend_area.y2 = shadow_area.y2;
/*Do not overdraw the other corners*/
blend_area.x1 = LV_MAX(blend_area.x1, w_half);
blend_area.y1 = LV_MAX(blend_area.y1, h_half + 1);
if(_lv_area_intersect(&clip_area_sub, &blend_area, clip) && !_lv_area_is_in(&clip_area_sub, &bg_area, r_bg)) {
lv_coord_t w = lv_area_get_width(&clip_area_sub);
sh_buf_tmp = sh_buf;
sh_buf_tmp += (blend_area.y2 - clip_area_sub.y2) * corner_size;
sh_buf_tmp += clip_area_sub.x1 - (shadow_area.x2 - corner_size + 1);
/*Do not mask if out of the bg*/
if(simple && _lv_area_is_out(&clip_area_sub, &bg_area, r_bg)) simple_sub = true;
else simple_sub = simple;
mask_act = simple_sub ? &sh_buf_tmp : &mask_buf;
if(w > 0) {
mask_res = LV_DRAW_MASK_RES_CHANGED; /*In simple mode it won't be overwritten*/
for(y = clip_area_sub.y2; y >= clip_area_sub.y1; y--) {
blend_area.y1 = y;
blend_area.y2 = y;
if(!simple_sub) {
lv_memcpy(mask_buf, sh_buf_tmp, corner_size);
mask_res = lv_draw_mask_apply(mask_buf, clip_area_sub.x1, y, w);
if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) mask_res = LV_DRAW_MASK_RES_CHANGED;
}
_lv_blend_fill(&clip_area_sub, &blend_area, dsc->shadow_color, *mask_act, mask_res, dsc->shadow_opa, dsc->blend_mode);
sh_buf_tmp += corner_size;
}
}
}
/*Top side*/
blend_area.x1 = shadow_area.x1 + corner_size;
blend_area.x2 = shadow_area.x2 - corner_size;
blend_area.y1 = shadow_area.y1;
blend_area.y2 = shadow_area.y1 + corner_size - 1;
blend_area.y2 = LV_MIN(blend_area.y2, h_half);
if(_lv_area_intersect(&clip_area_sub, &blend_area, clip) && !_lv_area_is_in(&clip_area_sub, &bg_area, r_bg)) {
lv_coord_t w = lv_area_get_width(&clip_area_sub);
sh_buf_tmp = sh_buf;
sh_buf_tmp += (clip_area_sub.y1 - blend_area.y1) * corner_size;
/*Do not mask if out of the bg*/
if(simple && _lv_area_is_out(&clip_area_sub, &bg_area, r_bg)) simple_sub = true;
else simple_sub = simple;
if(w > 0) {
mask_res = LV_DRAW_MASK_RES_CHANGED; /*In simple mode it won't be overwritten*/
for(y = clip_area_sub.y1; y <= clip_area_sub.y2; y++) {
blend_area.y1 = y;
blend_area.y2 = y;
if(!simple_sub) {
lv_memset(mask_buf, sh_buf_tmp[0], w);
mask_res = lv_draw_mask_apply(mask_buf, clip_area_sub.x1, y, w);
if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) mask_res = LV_DRAW_MASK_RES_CHANGED;
_lv_blend_fill(&clip_area_sub, &blend_area, dsc->shadow_color, mask_buf, mask_res, dsc->shadow_opa, dsc->blend_mode);
}
else {
lv_opa_t line_opa = opa == LV_OPA_COVER ? sh_buf_tmp[0] : (sh_buf_tmp[0] * dsc->shadow_opa) >> 8;
_lv_blend_fill(&clip_area_sub, &blend_area, dsc->shadow_color, NULL, LV_DRAW_MASK_RES_FULL_COVER, line_opa,
dsc->blend_mode);
}
sh_buf_tmp += corner_size;
}
}
}
/*Bottom side*/
blend_area.x1 = shadow_area.x1 + corner_size;
blend_area.x2 = shadow_area.x2 - corner_size;
blend_area.y1 = shadow_area.y2 - corner_size + 1;
blend_area.y2 = shadow_area.y2;
blend_area.y1 = LV_MAX(blend_area.y1, h_half + 1);
if(_lv_area_intersect(&clip_area_sub, &blend_area, clip) && !_lv_area_is_in(&clip_area_sub, &bg_area, r_bg)) {
lv_coord_t w = lv_area_get_width(&clip_area_sub);
sh_buf_tmp = sh_buf;
sh_buf_tmp += (blend_area.y2 - clip_area_sub.y2) * corner_size;
if(w > 0) {
mask_res = LV_DRAW_MASK_RES_CHANGED; /*In simple mode it won't be overwritten*/
for(y = clip_area_sub.y2; y >= clip_area_sub.y1; y--) {
blend_area.y1 = y;
blend_area.y2 = y;
/*Do not mask if out of the bg*/
if(simple && _lv_area_is_out(&clip_area_sub, &bg_area, r_bg)) simple_sub = true;
else simple_sub = simple;
if(!simple_sub) {
lv_memset(mask_buf, sh_buf_tmp[0], w);
mask_res = lv_draw_mask_apply(mask_buf, clip_area_sub.x1, y, w);
if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) mask_res = LV_DRAW_MASK_RES_CHANGED;
_lv_blend_fill(&clip_area_sub, &blend_area, dsc->shadow_color, mask_buf, mask_res, dsc->shadow_opa, dsc->blend_mode);
}
else {
lv_opa_t line_opa = opa == LV_OPA_COVER ? sh_buf_tmp[0] : (sh_buf_tmp[0] * dsc->shadow_opa) >> 8;
_lv_blend_fill(&clip_area_sub, &blend_area, dsc->shadow_color, NULL, LV_DRAW_MASK_RES_FULL_COVER, line_opa,
dsc->blend_mode);
}
sh_buf_tmp += corner_size;
}
}
}
/*Right side*/
blend_area.x1 = shadow_area.x2 - corner_size + 1;
blend_area.x2 = shadow_area.x2;
blend_area.y1 = shadow_area.y1 + corner_size;
blend_area.y2 = shadow_area.y2 - corner_size;
/*Do not overdraw the other corners*/
blend_area.y1 = LV_MIN(blend_area.y1, h_half + 1);
blend_area.y2 = LV_MAX(blend_area.y2, h_half);
blend_area.x1 = LV_MAX(blend_area.x1, w_half);
if(_lv_area_intersect(&clip_area_sub, &blend_area, clip) && !_lv_area_is_in(&clip_area_sub, &bg_area, r_bg)) {
lv_coord_t w = lv_area_get_width(&clip_area_sub);
sh_buf_tmp = sh_buf;
sh_buf_tmp += (corner_size - 1) * corner_size;
sh_buf_tmp += clip_area_sub.x1 - (shadow_area.x2 - corner_size + 1);
/*Do not mask if out of the bg*/
if(simple && _lv_area_is_out(&clip_area_sub, &bg_area, r_bg)) simple_sub = true;
else simple_sub = simple;
mask_act = simple_sub ? &sh_buf_tmp : &mask_buf;
if(w > 0) {
mask_res = LV_DRAW_MASK_RES_CHANGED; /*In simple mode it won't be overwritten*/
for(y = clip_area_sub.y1; y <= clip_area_sub.y2; y++) {
blend_area.y1 = y;
blend_area.y2 = y;
if(!simple_sub) {
lv_memcpy(mask_buf, sh_buf_tmp, w);
mask_res = lv_draw_mask_apply(mask_buf, clip_area_sub.x1, y, w);
if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) mask_res = LV_DRAW_MASK_RES_CHANGED;
}
_lv_blend_fill(&clip_area_sub, &blend_area, dsc->shadow_color, *mask_act, mask_res, dsc->shadow_opa, dsc->blend_mode);
}
}
}
/*Mirror the shadow corner buffer horizontally*/
sh_buf_tmp = sh_buf ;
for(y = 0; y < corner_size; y++) {
int32_t x;
lv_opa_t * start = sh_buf_tmp;
lv_opa_t * end = sh_buf_tmp + corner_size - 1;
for(x = 0; x < corner_size / 2; x++) {
lv_opa_t tmp = *start;
*start = *end;
*end = tmp;
start++;
end--;
}
sh_buf_tmp += corner_size;
}
/*Left side*/
blend_area.x1 = shadow_area.x1;
blend_area.x2 = shadow_area.x1 + corner_size - 1;
blend_area.y1 = shadow_area.y1 + corner_size;
blend_area.y2 = shadow_area.y2 - corner_size;
/*Do not overdraw the other corners*/
blend_area.y1 = LV_MIN(blend_area.y1, h_half + 1);
blend_area.y2 = LV_MAX(blend_area.y2, h_half);
blend_area.x2 = LV_MIN(blend_area.x2, w_half - 1);
if(_lv_area_intersect(&clip_area_sub, &blend_area, clip) && !_lv_area_is_in(&clip_area_sub, &bg_area, r_bg)) {
lv_coord_t w = lv_area_get_width(&clip_area_sub);
sh_buf_tmp = sh_buf;
sh_buf_tmp += (corner_size - 1) * corner_size;
sh_buf_tmp += clip_area_sub.x1 - blend_area.x1;
/*Do not mask if out of the bg*/
if(simple && _lv_area_is_out(&clip_area_sub, &bg_area, r_bg)) simple_sub = true;
else simple_sub = simple;
mask_act = simple_sub ? &sh_buf_tmp : &mask_buf;
if(w > 0) {
mask_res = LV_DRAW_MASK_RES_CHANGED; /*In simple mode it won't be overwritten*/
for(y = clip_area_sub.y1; y <= clip_area_sub.y2; y++) {
blend_area.y1 = y;
blend_area.y2 = y;
if(!simple_sub) {
lv_memcpy(mask_buf, sh_buf_tmp, w);
mask_res = lv_draw_mask_apply(mask_buf, clip_area_sub.x1, y, w);
if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) mask_res = LV_DRAW_MASK_RES_CHANGED;
}
_lv_blend_fill(&clip_area_sub, &blend_area, dsc->shadow_color, *mask_act, mask_res, dsc->shadow_opa, dsc->blend_mode);
}
}
}
/*Top left corner*/
blend_area.x1 = shadow_area.x1;
blend_area.x2 = shadow_area.x1 + corner_size - 1;
blend_area.y1 = shadow_area.y1;
blend_area.y2 = shadow_area.y1 + corner_size - 1;
/*Do not overdraw the other corners*/
blend_area.x2 = LV_MIN(blend_area.x2, w_half - 1);
blend_area.y2 = LV_MIN(blend_area.y2, h_half);
if(_lv_area_intersect(&clip_area_sub, &blend_area, clip) && !_lv_area_is_in(&clip_area_sub, &bg_area, r_bg)) {
lv_coord_t w = lv_area_get_width(&clip_area_sub);
sh_buf_tmp = sh_buf;
sh_buf_tmp += (clip_area_sub.y1 - blend_area.y1) * corner_size;
sh_buf_tmp += clip_area_sub.x1 - blend_area.x1;
/*Do not mask if out of the bg*/
if(simple && _lv_area_is_out(&clip_area_sub, &bg_area, r_bg)) simple_sub = true;
else simple_sub = simple;
mask_act = simple_sub ? &sh_buf_tmp : &mask_buf;
if(w > 0) {
mask_res = LV_DRAW_MASK_RES_CHANGED; /*In simple mode it won't be overwritten*/
for(y = clip_area_sub.y1; y <= clip_area_sub.y2; y++) {
blend_area.y1 = y;
blend_area.y2 = y;
if(!simple_sub) {
lv_memcpy(mask_buf, sh_buf_tmp, corner_size);
mask_res = lv_draw_mask_apply(mask_buf, clip_area_sub.x1, y, w);
if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) mask_res = LV_DRAW_MASK_RES_CHANGED;
}
_lv_blend_fill(&clip_area_sub, &blend_area, dsc->shadow_color, *mask_act, mask_res, dsc->shadow_opa, dsc->blend_mode);
sh_buf_tmp += corner_size;
}
}
}
/*Bottom left corner.
*Almost the same as bottom right just read the lines of `sh_buf` from then end*/
blend_area.x1 = shadow_area.x1 ;
blend_area.x2 = shadow_area.x1 + corner_size - 1;
blend_area.y1 = shadow_area.y2 - corner_size + 1;
blend_area.y2 = shadow_area.y2;
/*Do not overdraw the other corners*/
blend_area.y1 = LV_MAX(blend_area.y1, h_half + 1);
blend_area.x2 = LV_MIN(blend_area.x2, w_half - 1);
if(_lv_area_intersect(&clip_area_sub, &blend_area, clip) && !_lv_area_is_in(&clip_area_sub, &bg_area, r_bg)) {
lv_coord_t w = lv_area_get_width(&clip_area_sub);
sh_buf_tmp = sh_buf;
sh_buf_tmp += (blend_area.y2 - clip_area_sub.y2) * corner_size;
sh_buf_tmp += clip_area_sub.x1 - blend_area.x1;
/*Do not mask if out of the bg*/
if(simple && _lv_area_is_out(&clip_area_sub, &bg_area, r_bg)) simple_sub = true;
else simple_sub = simple;
mask_act = simple_sub ? &sh_buf_tmp : &mask_buf;
if(w > 0) {
mask_res = LV_DRAW_MASK_RES_CHANGED; /*In simple mode it won't be overwritten*/
for(y = clip_area_sub.y2; y >= clip_area_sub.y1; y--) {
blend_area.y1 = y;
blend_area.y2 = y;
if(!simple_sub) {
lv_memcpy(mask_buf, sh_buf_tmp, corner_size);
mask_res = lv_draw_mask_apply(mask_buf, clip_area_sub.x1, y, w);
if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) mask_res = LV_DRAW_MASK_RES_CHANGED;
}
_lv_blend_fill(&clip_area_sub, &blend_area, dsc->shadow_color, *mask_act, mask_res, dsc->shadow_opa, dsc->blend_mode);
sh_buf_tmp += corner_size;
}
}
}
/*Draw the center rectangle.*/
blend_area.x1 = shadow_area.x1 + corner_size ;
blend_area.x2 = shadow_area.x2 - corner_size;
blend_area.y1 = shadow_area.y1 + corner_size;
blend_area.y2 = shadow_area.y2 - corner_size;
if(_lv_area_intersect(&clip_area_sub, &blend_area, clip) && !_lv_area_is_in(&clip_area_sub, &bg_area, r_bg)) {
lv_coord_t w = lv_area_get_width(&clip_area_sub);
if(w > 0) {
for(y = clip_area_sub.y1; y <= clip_area_sub.y2; y++) {
blend_area.y1 = y;
blend_area.y2 = y;
lv_memset_ff(mask_buf, w);
mask_res = lv_draw_mask_apply(mask_buf, clip_area_sub.x1, y, w);
_lv_blend_fill(&clip_area_sub, &blend_area, dsc->shadow_color, mask_buf, mask_res, dsc->shadow_opa, dsc->blend_mode);
}
}
}
if(!simple) {
lv_draw_mask_free_param(&mask_rout_param);
lv_draw_mask_remove_id(mask_rout_id);
}
lv_mem_buf_release(sh_buf);
lv_mem_buf_release(mask_buf);
}
/**
* Calculate a blurred corner
* @param coords Coordinates of the shadow
* @param sh_buf a buffer to store the result. Its size should be `(sw + r)^2 * 2`
* @param sw shadow width
* @param r radius
*/
LV_ATTRIBUTE_FAST_MEM static void shadow_draw_corner_buf(const lv_area_t * coords, uint16_t * sh_buf, lv_coord_t sw,
lv_coord_t r)
{
int32_t sw_ori = sw;
int32_t size = sw_ori + r;
lv_area_t sh_area;
lv_area_copy(&sh_area, coords);
sh_area.x2 = sw / 2 + r - 1 - ((sw & 1) ? 0 : 1);
sh_area.y1 = sw / 2 + 1;
sh_area.x1 = sh_area.x2 - lv_area_get_width(coords);
sh_area.y2 = sh_area.y1 + lv_area_get_height(coords);
lv_draw_mask_radius_param_t mask_param;
lv_draw_mask_radius_init(&mask_param, &sh_area, r, false);
#if SHADOW_ENHANCE
/*Set half shadow width width because blur will be repeated*/
if(sw_ori == 1) sw = 1;
else sw = sw_ori >> 1;
#endif
int32_t y;
lv_opa_t * mask_line = lv_mem_buf_get(size);
uint16_t * sh_ups_tmp_buf = (uint16_t *)sh_buf;
for(y = 0; y < size; y++) {
lv_memset_ff(mask_line, size);
lv_draw_mask_res_t mask_res = mask_param.dsc.cb(mask_line, 0, y, size, &mask_param);
if(mask_res == LV_DRAW_MASK_RES_TRANSP) {
lv_memset_00(sh_ups_tmp_buf, size * sizeof(sh_ups_tmp_buf[0]));
}
else {
int32_t i;
sh_ups_tmp_buf[0] = (mask_line[0] << SHADOW_UPSCALE_SHIFT) / sw;
for(i = 1; i < size; i++) {
if(mask_line[i] == mask_line[i - 1]) sh_ups_tmp_buf[i] = sh_ups_tmp_buf[i - 1];
else sh_ups_tmp_buf[i] = (mask_line[i] << SHADOW_UPSCALE_SHIFT) / sw;
}
}
sh_ups_tmp_buf += size;
}
lv_mem_buf_release(mask_line);
lv_draw_mask_free_param(&mask_param);
if(sw == 1) {
int32_t i;
lv_opa_t * res_buf = (lv_opa_t *)sh_buf;
for(i = 0; i < size * size; i++) {
res_buf[i] = (sh_buf[i] >> SHADOW_UPSCALE_SHIFT);
}
return;
}
shadow_blur_corner(size, sw, sh_buf);
#if SHADOW_ENHANCE == 0
/*The result is required in lv_opa_t not uint16_t*/
uint32_t x;
lv_opa_t * res_buf = (lv_opa_t *)sh_buf;
for(x = 0; x < size * size; x++) {
res_buf[x] = sh_buf[x];
}
#else
sw += sw_ori & 1;
if(sw > 1) {
uint32_t i;
uint32_t max_v_div = (LV_OPA_COVER << SHADOW_UPSCALE_SHIFT) / sw;
for(i = 0; i < (uint32_t)size * size; i++) {
if(sh_buf[i] == 0) continue;
else if(sh_buf[i] == LV_OPA_COVER) sh_buf[i] = max_v_div;
else sh_buf[i] = (sh_buf[i] << SHADOW_UPSCALE_SHIFT) / sw;
}
shadow_blur_corner(size, sw, sh_buf);
}
int32_t x;
lv_opa_t * res_buf = (lv_opa_t *)sh_buf;
for(x = 0; x < size * size; x++) {
res_buf[x] = sh_buf[x];
}
#endif
}
LV_ATTRIBUTE_FAST_MEM static void shadow_blur_corner(lv_coord_t size, lv_coord_t sw, uint16_t * sh_ups_buf)
{
int32_t s_left = sw >> 1;
int32_t s_right = (sw >> 1);
if((sw & 1) == 0) s_left--;
/*Horizontal blur*/
uint16_t * sh_ups_blur_buf = lv_mem_buf_get(size * sizeof(uint16_t));
int32_t x;
int32_t y;
uint16_t * sh_ups_tmp_buf = sh_ups_buf;
for(y = 0; y < size; y++) {
int32_t v = sh_ups_tmp_buf[size - 1] * sw;
for(x = size - 1; x >= 0; x--) {
sh_ups_blur_buf[x] = v;
/*Forget the right pixel*/
uint32_t right_val = 0;
if(x + s_right < size) right_val = sh_ups_tmp_buf[x + s_right];
v -= right_val;
/*Add the left pixel*/
uint32_t left_val;
if(x - s_left - 1 < 0) left_val = sh_ups_tmp_buf[0];
else left_val = sh_ups_tmp_buf[x - s_left - 1];
v += left_val;
}
lv_memcpy(sh_ups_tmp_buf, sh_ups_blur_buf, size * sizeof(uint16_t));
sh_ups_tmp_buf += size;
}
/*Vertical blur*/
uint32_t i;
uint32_t max_v = LV_OPA_COVER << SHADOW_UPSCALE_SHIFT;
uint32_t max_v_div = max_v / sw;
for(i = 0; i < (uint32_t)size * size; i++) {
if(sh_ups_buf[i] == 0) continue;
else if(sh_ups_buf[i] == max_v) sh_ups_buf[i] = max_v_div;
else sh_ups_buf[i] = sh_ups_buf[i] / sw;
}
for(x = 0; x < size; x++) {
sh_ups_tmp_buf = &sh_ups_buf[x];
int32_t v = sh_ups_tmp_buf[0] * sw;
for(y = 0; y < size ; y++, sh_ups_tmp_buf += size) {
sh_ups_blur_buf[y] = v < 0 ? 0 : (v >> SHADOW_UPSCALE_SHIFT);
/*Forget the top pixel*/
uint32_t top_val;
if(y - s_right <= 0) top_val = sh_ups_tmp_buf[0];
else top_val = sh_ups_buf[(y - s_right) * size + x];
v -= top_val;
/*Add the bottom pixel*/
uint32_t bottom_val;
if(y + s_left + 1 < size) bottom_val = sh_ups_buf[(y + s_left + 1) * size + x];
else bottom_val = sh_ups_buf[(size - 1) * size + x];
v += bottom_val;
}
/*Write back the result into `sh_ups_buf`*/
sh_ups_tmp_buf = &sh_ups_buf[x];
for(y = 0; y < size; y++, sh_ups_tmp_buf += size) {
(*sh_ups_tmp_buf) = sh_ups_blur_buf[y];
}
}
lv_mem_buf_release(sh_ups_blur_buf);
}
#endif
static void draw_outline(const lv_area_t * coords, const lv_area_t * clip, const lv_draw_rect_dsc_t * dsc)
{
if(dsc->outline_opa <= LV_OPA_MIN) return;
if(dsc->outline_width == 0) return;
lv_opa_t opa = dsc->outline_opa;
if(opa > LV_OPA_MAX) opa = LV_OPA_COVER;
/*Get the inner radius*/
lv_area_t area_inner;
lv_area_copy(&area_inner, coords);
/*Extend the outline into the background area if it's overlapping the edge*/
lv_coord_t pad = (dsc->outline_pad == 0 ? (dsc->outline_pad - 1) : dsc->outline_pad);
area_inner.x1 -= pad;
area_inner.y1 -= pad;
area_inner.x2 += pad;
area_inner.y2 += pad;
lv_area_t area_outer;
lv_area_copy(&area_outer, &area_inner);
area_outer.x1 -= dsc->outline_width;
area_outer.x2 += dsc->outline_width;
area_outer.y1 -= dsc->outline_width;
area_outer.y2 += dsc->outline_width;
int32_t inner_w = lv_area_get_width(&area_inner);
int32_t inner_h = lv_area_get_height(&area_inner);
int32_t rin = dsc->radius;
int32_t short_side = LV_MIN(inner_w, inner_h);
if(rin > short_side >> 1) rin = short_side >> 1;
lv_coord_t rout = rin + dsc->outline_width;
draw_border_generic(clip, &area_outer, &area_inner, rout, rin, dsc->outline_color, dsc->outline_opa, dsc->blend_mode);
}
void draw_border_generic(const lv_area_t * clip_area, const lv_area_t * outer_area, const lv_area_t * inner_area,
lv_coord_t rout, lv_coord_t rin, lv_color_t color, lv_opa_t opa, lv_blend_mode_t blend_mode)
{
opa = opa >= LV_OPA_COVER ? LV_OPA_COVER : opa;
bool mask_any = lv_draw_mask_is_any(outer_area);
if(!mask_any && rout == 0 && rin == 0) {
draw_border_simple(clip_area, outer_area, inner_area, color, opa);
return;
}
#if LV_DRAW_COMPLEX
/*Get clipped draw area which is the real draw area.
*It is always the same or inside `coords`*/
lv_area_t draw_area;
if(!_lv_area_intersect(&draw_area, outer_area, clip_area)) return;
int32_t draw_area_w = lv_area_get_width(&draw_area);
/*Create a mask if there is a radius*/
lv_opa_t * mask_buf = lv_mem_buf_get(draw_area_w);
/*Create mask for the outer area*/
int16_t mask_rout_id = LV_MASK_ID_INV;
lv_draw_mask_radius_param_t mask_rout_param;
if(rout > 0) {
lv_draw_mask_radius_init(&mask_rout_param, outer_area, rout, false);
mask_rout_id = lv_draw_mask_add(&mask_rout_param, NULL);
}
/*Create mask for the inner mask*/
lv_draw_mask_radius_param_t mask_rin_param;
lv_draw_mask_radius_init(&mask_rin_param, inner_area, rin, true);
int16_t mask_rin_id = lv_draw_mask_add(&mask_rin_param, NULL);
int32_t h;
lv_draw_mask_res_t mask_res;
lv_area_t blend_area;
/*Calculate the x and y coordinates where the straight parts area*/
lv_area_t core_area;
core_area.x1 = LV_MAX(outer_area->x1 + rout, inner_area->x1);
core_area.x2 = LV_MIN(outer_area->x2 - rout, inner_area->x2);
core_area.y1 = LV_MAX(outer_area->y1 + rout, inner_area->y1);
core_area.y2 = LV_MIN(outer_area->y2 - rout, inner_area->y2);
lv_coord_t core_w = lv_area_get_width(&core_area);
bool top_side = outer_area->y1 <= inner_area->y1 ? true : false;
bool bottom_side = outer_area->y2 >= inner_area->y2 ? true : false;
/*If there is other masks, need to draw line by line*/
if(mask_any) {
blend_area.x1 = draw_area.x1;
blend_area.x2 = draw_area.x2;
for(h = draw_area.y1; h <= draw_area.y2; h++) {
if(!top_side && h < core_area.y1) continue;
if(!bottom_side && h > core_area.y2) break;
blend_area.y1 = h;
blend_area.y2 = h;
lv_memset_ff(mask_buf, draw_area_w);
mask_res = lv_draw_mask_apply(mask_buf, draw_area.x1, h, draw_area_w);
_lv_blend_fill(clip_area, &blend_area, color, mask_buf, mask_res, opa, blend_mode);
}
lv_draw_mask_free_param(&mask_rin_param);
lv_draw_mask_remove_id(mask_rin_id);
lv_draw_mask_free_param(&mask_rout_param);
lv_draw_mask_remove_id(mask_rout_id);
lv_mem_buf_release(mask_buf);
return;
}
/*No masks*/
bool left_side = outer_area->x1 <= inner_area->x1 ? true : false;
bool right_side = outer_area->x2 >= inner_area->x2 ? true : false;
bool split_hor = true;
if(left_side && right_side && top_side && bottom_side &&
core_w < SPLIT_LIMIT) {
split_hor = false;
}
/*Draw the straight lines first if they are long enough*/
if(top_side && split_hor) {
blend_area.x1 = core_area.x1;
blend_area.x2 = core_area.x2;
blend_area.y1 = outer_area->y1;
blend_area.y2 = inner_area->y1 - 1;
_lv_blend_fill(clip_area, &blend_area, color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, blend_mode);
}
if(bottom_side && split_hor) {
blend_area.x1 = core_area.x1;
blend_area.x2 = core_area.x2;
blend_area.y1 = inner_area->y2 + 1;
blend_area.y2 = outer_area->y2;
_lv_blend_fill(clip_area, &blend_area, color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, blend_mode);
}
if(left_side) {
blend_area.x1 = outer_area->x1;
blend_area.x2 = inner_area->x1 - 1;
blend_area.y1 = core_area.y1;
blend_area.y2 = core_area.y2;
_lv_blend_fill(clip_area, &blend_area, color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, blend_mode);
}
if(right_side) {
blend_area.x1 = inner_area->x2 + 1;
blend_area.x2 = outer_area->x2;
blend_area.y1 = core_area.y1;
blend_area.y2 = core_area.y2;
_lv_blend_fill(clip_area, &blend_area, color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, blend_mode);
}
/*Draw the corners*/
lv_coord_t blend_w;
/*Left and right corner together is they close to eachother*/
if(!split_hor) {
/*Calculate the top corner and mirror it to the bottom*/
blend_area.x1 = draw_area.x1;
blend_area.x2 = draw_area.x2;
lv_coord_t max_h = LV_MAX(rout, outer_area->y1 - inner_area->y1);
for(h = 0; h < max_h; h++) {
lv_coord_t top_y = outer_area->y1 + h;
lv_coord_t bottom_y = outer_area->y2 - h;
if(top_y < draw_area.y1 && bottom_y > draw_area.y2) continue; /*This line is clipped now*/
lv_memset_ff(mask_buf, draw_area_w);
mask_res = lv_draw_mask_apply(mask_buf, blend_area.x1, top_y, draw_area_w);
if(top_y >= draw_area.y1) {
blend_area.y1 = top_y;
blend_area.y2 = top_y;
_lv_blend_fill(clip_area, &blend_area, color, mask_buf, mask_res, opa, blend_mode);
}
if(bottom_y <= draw_area.y2) {
blend_area.y1 = bottom_y;
blend_area.y2 = bottom_y;
_lv_blend_fill(clip_area, &blend_area, color, mask_buf, mask_res, opa, blend_mode);
}
}
}
else {
/*Left corners*/
blend_area.x1 = draw_area.x1;
blend_area.x2 = LV_MIN(draw_area.x2, core_area.x1 - 1);
blend_w = lv_area_get_width(&blend_area);
if(blend_w > 0) {
if(left_side || top_side) {
for(h = draw_area.y1; h < core_area.y1; h++) {
blend_area.y1 = h;
blend_area.y2 = h;
lv_memset_ff(mask_buf, blend_w);
mask_res = lv_draw_mask_apply(mask_buf, blend_area.x1, h, blend_w);
_lv_blend_fill(clip_area, &blend_area, color, mask_buf, mask_res, opa, blend_mode);
}
}
if(left_side || bottom_side) {
for(h = core_area.y2 + 1; h <= draw_area.y2; h++) {
blend_area.y1 = h;
blend_area.y2 = h;
lv_memset_ff(mask_buf, blend_w);
mask_res = lv_draw_mask_apply(mask_buf, blend_area.x1, h, blend_w);
_lv_blend_fill(clip_area, &blend_area, color, mask_buf, mask_res, opa, blend_mode);
}
}
}
/*Right corners*/
blend_area.x1 = LV_MAX(draw_area.x1, core_area.x2 + 1);
blend_area.x2 = draw_area.x2;
blend_w = lv_area_get_width(&blend_area);
if(blend_w > 0) {
if(right_side || top_side) {
for(h = draw_area.y1; h < core_area.y1; h++) {
blend_area.y1 = h;
blend_area.y2 = h;
lv_memset_ff(mask_buf, blend_w);
mask_res = lv_draw_mask_apply(mask_buf, blend_area.x1, h, blend_w);
_lv_blend_fill(clip_area, &blend_area, color, mask_buf, mask_res, opa, blend_mode);
}
}
if(right_side || bottom_side) {
for(h = core_area.y2 + 1; h <= draw_area.y2; h++) {
blend_area.y1 = h;
blend_area.y2 = h;
lv_memset_ff(mask_buf, blend_w);
mask_res = lv_draw_mask_apply(mask_buf, blend_area.x1, h, blend_w);
_lv_blend_fill(clip_area, &blend_area, color, mask_buf, mask_res, opa, blend_mode);
}
}
}
}
lv_draw_mask_free_param(&mask_rin_param);
lv_draw_mask_remove_id(mask_rin_id);
lv_draw_mask_free_param(&mask_rout_param);
lv_draw_mask_remove_id(mask_rout_id);
lv_mem_buf_release(mask_buf);
#else /*LV_DRAW_COMPLEX*/
LV_UNUSED(blend_mode);
#endif /*LV_DRAW_COMPLEX*/
}
static void draw_border_simple(const lv_area_t * clip, const lv_area_t * outer_area, const lv_area_t * inner_area,
lv_color_t color, lv_opa_t opa)
{
bool top_side = outer_area->y1 <= inner_area->y1 ? true : false;
bool bottom_side = outer_area->y2 >= inner_area->y2 ? true : false;
bool left_side = outer_area->x1 <= inner_area->x1 ? true : false;
bool right_side = outer_area->x2 >= inner_area->x2 ? true : false;
lv_area_t a;
/*Top*/
a.x1 = outer_area->x1;
a.x2 = outer_area->x2;
a.y1 = outer_area->y1;
a.y2 = inner_area->y1 - 1;
if(top_side) {
_lv_blend_fill(clip, &a, color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, LV_BLEND_MODE_NORMAL);
}
/*Bottom*/
a.y1 = inner_area->y2 + 1;
a.y2 = outer_area->y2;
if(bottom_side) {
_lv_blend_fill(clip, &a, color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, LV_BLEND_MODE_NORMAL);
}
/*Left*/
a.x1 = outer_area->x1;
a.x2 = inner_area->x1 - 1;
a.y1 = (top_side) ? inner_area->y1 : outer_area->y1;
a.y2 = (bottom_side) ? inner_area->y2 : outer_area->y2;
if(left_side) {
_lv_blend_fill(clip, &a, color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, LV_BLEND_MODE_NORMAL);
}
/*Right*/
a.x1 = inner_area->x2 + 1;
a.x2 = outer_area->x2;
if(right_side) {
_lv_blend_fill(clip, &a, color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, LV_BLEND_MODE_NORMAL);
}
}
#endif
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/draw/lv_draw_rect.c | C | apache-2.0 | 52,966 |
/**
* @file lv_draw_rect.h
*
*/
#ifndef LV_DRAW_RECT_H
#define LV_DRAW_RECT_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "lv_draw_blend.h"
#include "../font/lv_font.h"
/*********************
* DEFINES
*********************/
#define LV_RADIUS_CIRCLE 0x7FFF /**< A very big radius to always draw as circle*/
LV_EXPORT_CONST_INT(LV_RADIUS_CIRCLE);
/**********************
* TYPEDEFS
**********************/
typedef struct {
lv_coord_t radius;
lv_blend_mode_t blend_mode;
/*Background*/
lv_color_t bg_color;
lv_color_t bg_grad_color;
uint8_t bg_main_color_stop;
uint8_t bg_grad_color_stop;
lv_opa_t bg_opa;
lv_grad_dir_t bg_grad_dir : 3;
/*Background img*/
const void * bg_img_src;
const void * bg_img_symbol_font;
lv_color_t bg_img_recolor;
lv_opa_t bg_img_opa;
lv_opa_t bg_img_recolor_opa;
uint8_t bg_img_tiled;
/*Border*/
lv_color_t border_color;
lv_coord_t border_width;
lv_opa_t border_opa;
uint8_t border_post : 1; /*There is a border it will be drawn later.*/
lv_border_side_t border_side : 5;
/*Outline*/
lv_color_t outline_color;
lv_coord_t outline_width;
lv_coord_t outline_pad;
lv_opa_t outline_opa;
/*Shadow*/
lv_color_t shadow_color;
lv_coord_t shadow_width;
lv_coord_t shadow_ofs_x;
lv_coord_t shadow_ofs_y;
lv_coord_t shadow_spread;
lv_opa_t shadow_opa;
} lv_draw_rect_dsc_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
LV_ATTRIBUTE_FAST_MEM void lv_draw_rect_dsc_init(lv_draw_rect_dsc_t * dsc);
//! @endcond
/**
* Draw a rectangle
* @param coords the coordinates of the rectangle
* @param clip the rectangle will be drawn only in this area
* @param dsc pointer to an initialized `lv_draw_rect_dsc_t` variable
*/
void lv_draw_rect(const lv_area_t * coords, const lv_area_t * clip, const lv_draw_rect_dsc_t * dsc);
/**
* Draw a pixel
* @param point the coordinates of the point to draw
* @param mask the pixel will be drawn only in this mask
* @param style pointer to a style
*/
//void lv_draw_px(const lv_point_t * point, const lv_area_t * clip_area, const lv_style_t * style);
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_DRAW_RECT_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/draw/lv_draw_rect.h | C | apache-2.0 | 2,407 |
/**
* @file lv_draw_triangle.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_draw_triangle.h"
#include "../misc/lv_math.h"
#include "../misc/lv_mem.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
/**
* Draw a triangle
* @param points pointer to an array with 3 points
* @param clip_area the triangle will be drawn only in this area
* @param draw_dsc pointer to an initialized `lv_draw_rect_dsc_t` variable
*/
void lv_draw_triangle(const lv_point_t points[], const lv_area_t * clip_area, const lv_draw_rect_dsc_t * draw_dsc)
{
#if LV_DRAW_COMPLEX
lv_draw_polygon(points, 3, clip_area, draw_dsc);
#else
LV_UNUSED(points);
LV_UNUSED(clip_area);
LV_UNUSED(draw_dsc);
LV_LOG_WARN("Can't draw triangle with LV_DRAW_COMPLEX == 0");
#endif /*LV_DRAW_COMPLEX*/
}
/**
* Draw a polygon. Only convex polygons are supported
* @param points an array of points
* @param point_cnt number of points
* @param clip_area polygon will be drawn only in this area
* @param draw_dsc pointer to an initialized `lv_draw_rect_dsc_t` variable
*/
void lv_draw_polygon(const lv_point_t points[], uint16_t point_cnt, const lv_area_t * clip_area,
const lv_draw_rect_dsc_t * draw_dsc)
{
#if LV_DRAW_COMPLEX
if(point_cnt < 3) return;
if(points == NULL) return;
/*Join adjacent points if they are on the same coordinate*/
lv_point_t * p = lv_mem_buf_get(point_cnt * sizeof(lv_point_t));
if(p == NULL) return;
uint16_t i;
uint16_t pcnt = 0;
p[0] = points[0];
for(i = 0; i < point_cnt - 1; i++) {
if(points[i].x != points[i + 1].x || points[i].y != points[i + 1].y) {
p[pcnt] = points[i];
pcnt++;
}
}
/*The first and the last points are also adjacent*/
if(points[0].x != points[point_cnt - 1].x || points[0].y != points[point_cnt - 1].y) {
p[pcnt] = points[point_cnt - 1];
pcnt++;
}
point_cnt = pcnt;
if(point_cnt < 3) {
lv_mem_buf_release(p);
return;
}
lv_area_t poly_coords = {.x1 = LV_COORD_MAX, .y1 = LV_COORD_MAX, .x2 = LV_COORD_MIN, .y2 = LV_COORD_MIN};
for(i = 0; i < point_cnt; i++) {
poly_coords.x1 = LV_MIN(poly_coords.x1, p[i].x);
poly_coords.y1 = LV_MIN(poly_coords.y1, p[i].y);
poly_coords.x2 = LV_MAX(poly_coords.x2, p[i].x);
poly_coords.y2 = LV_MAX(poly_coords.y2, p[i].y);
}
bool is_common;
lv_area_t poly_mask;
is_common = _lv_area_intersect(&poly_mask, &poly_coords, clip_area);
if(!is_common) {
lv_mem_buf_release(p);
return;
}
/*Find the lowest point*/
lv_coord_t y_min = p[0].y;
int16_t y_min_i = 0;
for(i = 1; i < point_cnt; i++) {
if(p[i].y < y_min) {
y_min = p[i].y;
y_min_i = i;
}
}
lv_draw_mask_line_param_t * mp = lv_mem_buf_get(sizeof(lv_draw_mask_line_param_t) * point_cnt);
lv_draw_mask_line_param_t * mp_next = mp;
int32_t i_prev_left = y_min_i;
int32_t i_prev_right = y_min_i;
int32_t i_next_left;
int32_t i_next_right;
uint32_t mask_cnt = 0;
/*Get the index of the left and right points*/
i_next_left = y_min_i - 1;
if(i_next_left < 0) i_next_left = point_cnt + i_next_left;
i_next_right = y_min_i + 1;
if(i_next_right > point_cnt - 1) i_next_right = 0;
/**
* Check if the order of points is inverted or not.
* The normal case is when the left point is on `y_min_i - 1`
* Explanation:
* if angle(p_left) < angle(p_right) -> inverted
* dy_left/dx_left < dy_right/dx_right
* dy_left * dx_right < dy_right * dx_left
*/
lv_coord_t dxl = p[i_next_left].x - p[y_min_i].x;
lv_coord_t dxr = p[i_next_right].x - p[y_min_i].x;
lv_coord_t dyl = p[i_next_left].y - p[y_min_i].y;
lv_coord_t dyr = p[i_next_right].y - p[y_min_i].y;
bool inv = false;
if(dyl * dxr < dyr * dxl) inv = true;
do {
if(!inv) {
i_next_left = i_prev_left - 1;
if(i_next_left < 0) i_next_left = point_cnt + i_next_left;
i_next_right = i_prev_right + 1;
if(i_next_right > point_cnt - 1) i_next_right = 0;
}
else {
i_next_left = i_prev_left + 1;
if(i_next_left > point_cnt - 1) i_next_left = 0;
i_next_right = i_prev_right - 1;
if(i_next_right < 0) i_next_right = point_cnt + i_next_right;
}
if(p[i_next_left].y >= p[i_prev_left].y) {
if(p[i_next_left].y != p[i_prev_left].y &&
p[i_next_left].x != p[i_prev_left].x) {
lv_draw_mask_line_points_init(mp_next, p[i_prev_left].x, p[i_prev_left].y,
p[i_next_left].x, p[i_next_left].y,
LV_DRAW_MASK_LINE_SIDE_RIGHT);
lv_draw_mask_add(mp_next, mp);
mp_next++;
}
mask_cnt++;
i_prev_left = i_next_left;
}
if(mask_cnt == point_cnt) break;
if(p[i_next_right].y >= p[i_prev_right].y) {
if(p[i_next_right].y != p[i_prev_right].y &&
p[i_next_right].x != p[i_prev_right].x) {
lv_draw_mask_line_points_init(mp_next, p[i_prev_right].x, p[i_prev_right].y,
p[i_next_right].x, p[i_next_right].y,
LV_DRAW_MASK_LINE_SIDE_LEFT);
lv_draw_mask_add(mp_next, mp);
mp_next++;
}
mask_cnt++;
i_prev_right = i_next_right;
}
} while(mask_cnt < point_cnt);
lv_draw_rect(&poly_coords, clip_area, draw_dsc);
lv_draw_mask_remove_custom(mp);
lv_mem_buf_release(mp);
lv_mem_buf_release(p);
#else
LV_UNUSED(points);
LV_UNUSED(point_cnt);
LV_UNUSED(clip_area);
LV_UNUSED(draw_dsc);
LV_LOG_WARN("Can't draw polygon with LV_DRAW_COMPLEX == 0");
#endif /*LV_DRAW_COMPLEX*/
}
/**********************
* STATIC FUNCTIONS
**********************/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/draw/lv_draw_triangle.c | C | apache-2.0 | 6,505 |
/**
* @file lv_draw_triangle.h
*
*/
#ifndef LV_DRAW_TRIANGLE_H
#define LV_DRAW_TRIANGLE_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "lv_draw_rect.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Draw a triangle
* @param points pointer to an array with 3 points
* @param clip_area the triangle will be drawn only in this area
* @param draw_dsc pointer to an initialized `lv_draw_rect_dsc_t` variable
*/
void lv_draw_triangle(const lv_point_t points[], const lv_area_t * clip, const lv_draw_rect_dsc_t * draw_dsc);
/**
* Draw a polygon. Only convex polygons are supported.
* @param points an array of points
* @param point_cnt number of points
* @param clip_area polygon will be drawn only in this area
* @param draw_dsc pointer to an initialized `lv_draw_rect_dsc_t` variable
*/
void lv_draw_polygon(const lv_point_t points[], uint16_t point_cnt, const lv_area_t * mask,
const lv_draw_rect_dsc_t * draw_dsc);
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_DRAW_TRIANGLE_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/draw/lv_draw_triangle.h | C | apache-2.0 | 1,320 |
/**
* @file lv_img_buf.c
*
*/
/*********************
* INCLUDES
*********************/
#include <stddef.h>
#include <string.h>
#include "lv_img_buf.h"
#include "lv_draw_img.h"
#include "../misc/lv_math.h"
#include "../misc/lv_log.h"
#include "../misc/lv_mem.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
/**
* Get the color of an image's pixel
* @param dsc an image descriptor
* @param x x coordinate of the point to get
* @param y x coordinate of the point to get
* @param color the color of the image. In case of `LV_IMG_CF_ALPHA_1/2/4/8` this color is used.
* Not used in other cases.
* @param safe true: check out of bounds
* @return color of the point
*/
lv_color_t lv_img_buf_get_px_color(lv_img_dsc_t * dsc, lv_coord_t x, lv_coord_t y, lv_color_t color)
{
lv_color_t p_color = lv_color_black();
uint8_t * buf_u8 = (uint8_t *)dsc->data;
if(dsc->header.cf == LV_IMG_CF_TRUE_COLOR || dsc->header.cf == LV_IMG_CF_TRUE_COLOR_CHROMA_KEYED ||
dsc->header.cf == LV_IMG_CF_TRUE_COLOR_ALPHA) {
uint8_t px_size = lv_img_cf_get_px_size(dsc->header.cf) >> 3;
uint32_t px = dsc->header.w * y * px_size + x * px_size;
lv_memcpy_small(&p_color, &buf_u8[px], sizeof(lv_color_t));
#if LV_COLOR_SIZE == 32
p_color.ch.alpha = 0xFF; /*Only the color should be get so use a default alpha value*/
#endif
}
else if(dsc->header.cf == LV_IMG_CF_INDEXED_1BIT) {
buf_u8 += 4 * 2;
uint8_t bit = x & 0x7;
x = x >> 3;
/*Get the current pixel.
*dsc->header.w + 7 means rounding up to 8 because the lines are byte aligned
*so the possible real width are 8, 16, 24 ...*/
uint32_t px = ((dsc->header.w + 7) >> 3) * y + x;
p_color.full = (buf_u8[px] & (1 << (7 - bit))) >> (7 - bit);
}
else if(dsc->header.cf == LV_IMG_CF_INDEXED_2BIT) {
buf_u8 += 4 * 4;
uint8_t bit = (x & 0x3) * 2;
x = x >> 2;
/*Get the current pixel.
*dsc->header.w + 3 means rounding up to 4 because the lines are byte aligned
*so the possible real width are 4, 8, 12 ...*/
uint32_t px = ((dsc->header.w + 3) >> 2) * y + x;
p_color.full = (buf_u8[px] & (3 << (6 - bit))) >> (6 - bit);
}
else if(dsc->header.cf == LV_IMG_CF_INDEXED_4BIT) {
buf_u8 += 4 * 16;
uint8_t bit = (x & 0x1) * 4;
x = x >> 1;
/*Get the current pixel.
*dsc->header.w + 1 means rounding up to 2 because the lines are byte aligned
*so the possible real width are 2, 4, 6 ...*/
uint32_t px = ((dsc->header.w + 1) >> 1) * y + x;
p_color.full = (buf_u8[px] & (0xF << (4 - bit))) >> (4 - bit);
}
else if(dsc->header.cf == LV_IMG_CF_INDEXED_8BIT) {
buf_u8 += 4 * 256;
uint32_t px = dsc->header.w * y + x;
p_color.full = buf_u8[px];
}
else if(dsc->header.cf == LV_IMG_CF_ALPHA_1BIT || dsc->header.cf == LV_IMG_CF_ALPHA_2BIT ||
dsc->header.cf == LV_IMG_CF_ALPHA_4BIT || dsc->header.cf == LV_IMG_CF_ALPHA_8BIT) {
p_color = color;
}
return p_color;
}
/**
* Get the alpha value of an image's pixel
* @param dsc pointer to an image descriptor
* @param x x coordinate of the point to set
* @param y x coordinate of the point to set
* @param safe true: check out of bounds
* @return alpha value of the point
*/
lv_opa_t lv_img_buf_get_px_alpha(lv_img_dsc_t * dsc, lv_coord_t x, lv_coord_t y)
{
uint8_t * buf_u8 = (uint8_t *)dsc->data;
if(dsc->header.cf == LV_IMG_CF_TRUE_COLOR_ALPHA) {
uint32_t px = dsc->header.w * y * LV_IMG_PX_SIZE_ALPHA_BYTE + x * LV_IMG_PX_SIZE_ALPHA_BYTE;
return buf_u8[px + LV_IMG_PX_SIZE_ALPHA_BYTE - 1];
}
else if(dsc->header.cf == LV_IMG_CF_ALPHA_1BIT) {
uint8_t bit = x & 0x7;
x = x >> 3;
/*Get the current pixel.
*dsc->header.w + 7 means rounding up to 8 because the lines are byte aligned
*so the possible real width are 8 ,16, 24 ...*/
uint32_t px = ((dsc->header.w + 7) >> 3) * y + x;
uint8_t px_opa = (buf_u8[px] & (1 << (7 - bit))) >> (7 - bit);
return px_opa ? LV_OPA_TRANSP : LV_OPA_COVER;
}
else if(dsc->header.cf == LV_IMG_CF_ALPHA_2BIT) {
const uint8_t opa_table[4] = {0, 85, 170, 255}; /*Opacity mapping with bpp = 2*/
uint8_t bit = (x & 0x3) * 2;
x = x >> 2;
/*Get the current pixel.
*dsc->header.w + 4 means rounding up to 8 because the lines are byte aligned
*so the possible real width are 4 ,8, 12 ...*/
uint32_t px = ((dsc->header.w + 3) >> 2) * y + x;
uint8_t px_opa = (buf_u8[px] & (3 << (6 - bit))) >> (6 - bit);
return opa_table[px_opa];
}
else if(dsc->header.cf == LV_IMG_CF_ALPHA_4BIT) {
const uint8_t opa_table[16] = {0, 17, 34, 51, /*Opacity mapping with bpp = 4*/
68, 85, 102, 119, 136, 153, 170, 187, 204, 221, 238, 255
};
uint8_t bit = (x & 0x1) * 4;
x = x >> 1;
/*Get the current pixel.
*dsc->header.w + 1 means rounding up to 8 because the lines are byte aligned
*so the possible real width are 2 ,4, 6 ...*/
uint32_t px = ((dsc->header.w + 1) >> 1) * y + x;
uint8_t px_opa = (buf_u8[px] & (0xF << (4 - bit))) >> (4 - bit);
return opa_table[px_opa];
}
else if(dsc->header.cf == LV_IMG_CF_ALPHA_8BIT) {
uint32_t px = dsc->header.w * y + x;
return buf_u8[px];
}
return LV_OPA_COVER;
}
/**
* Set the alpha value of a pixel of an image. The color won't be affected
* @param dsc pointer to an image descriptor
* @param x x coordinate of the point to set
* @param y x coordinate of the point to set
* @param opa the desired opacity
* @param safe true: check out of bounds
*/
void lv_img_buf_set_px_alpha(lv_img_dsc_t * dsc, lv_coord_t x, lv_coord_t y, lv_opa_t opa)
{
uint8_t * buf_u8 = (uint8_t *)dsc->data;
if(dsc->header.cf == LV_IMG_CF_TRUE_COLOR_ALPHA) {
uint8_t px_size = lv_img_cf_get_px_size(dsc->header.cf) >> 3;
uint32_t px = dsc->header.w * y * px_size + x * px_size;
buf_u8[px + px_size - 1] = opa;
}
else if(dsc->header.cf == LV_IMG_CF_ALPHA_1BIT) {
opa = opa >> 7; /*opa -> [0,1]*/
uint8_t bit = x & 0x7;
x = x >> 3;
/*Get the current pixel.
*dsc->header.w + 7 means rounding up to 8 because the lines are byte aligned
*so the possible real width are 8 ,16, 24 ...*/
uint32_t px = ((dsc->header.w + 7) >> 3) * y + x;
buf_u8[px] = buf_u8[px] & ~(1 << (7 - bit));
buf_u8[px] = buf_u8[px] | ((opa & 0x1) << (7 - bit));
}
else if(dsc->header.cf == LV_IMG_CF_ALPHA_2BIT) {
opa = opa >> 6; /*opa -> [0,3]*/
uint8_t bit = (x & 0x3) * 2;
x = x >> 2;
/*Get the current pixel.
*dsc->header.w + 4 means rounding up to 8 because the lines are byte aligned
*so the possible real width are 4 ,8, 12 ...*/
uint32_t px = ((dsc->header.w + 3) >> 2) * y + x;
buf_u8[px] = buf_u8[px] & ~(3 << (6 - bit));
buf_u8[px] = buf_u8[px] | ((opa & 0x3) << (6 - bit));
}
else if(dsc->header.cf == LV_IMG_CF_ALPHA_4BIT) {
opa = opa >> 4; /*opa -> [0,15]*/
uint8_t bit = (x & 0x1) * 4;
x = x >> 1;
/*Get the current pixel.
*dsc->header.w + 1 means rounding up to 8 because the lines are byte aligned
*so the possible real width are 2 ,4, 6 ...*/
uint32_t px = ((dsc->header.w + 1) >> 1) * y + x;
buf_u8[px] = buf_u8[px] & ~(0xF << (4 - bit));
buf_u8[px] = buf_u8[px] | ((opa & 0xF) << (4 - bit));
}
else if(dsc->header.cf == LV_IMG_CF_ALPHA_8BIT) {
uint32_t px = dsc->header.w * y + x;
buf_u8[px] = opa;
}
}
/**
* Set the color of a pixel of an image. The alpha channel won't be affected.
* @param dsc pointer to an image descriptor
* @param x x coordinate of the point to set
* @param y x coordinate of the point to set
* @param c color of the point
* @param safe true: check out of bounds
*/
void lv_img_buf_set_px_color(lv_img_dsc_t * dsc, lv_coord_t x, lv_coord_t y, lv_color_t c)
{
uint8_t * buf_u8 = (uint8_t *)dsc->data;
if(dsc->header.cf == LV_IMG_CF_TRUE_COLOR || dsc->header.cf == LV_IMG_CF_TRUE_COLOR_CHROMA_KEYED) {
uint8_t px_size = lv_img_cf_get_px_size(dsc->header.cf) >> 3;
uint32_t px = dsc->header.w * y * px_size + x * px_size;
lv_memcpy_small(&buf_u8[px], &c, px_size);
}
else if(dsc->header.cf == LV_IMG_CF_TRUE_COLOR_ALPHA) {
uint8_t px_size = lv_img_cf_get_px_size(dsc->header.cf) >> 3;
uint32_t px = dsc->header.w * y * px_size + x * px_size;
lv_memcpy_small(&buf_u8[px], &c, px_size - 1); /*-1 to not overwrite the alpha value*/
}
else if(dsc->header.cf == LV_IMG_CF_INDEXED_1BIT) {
buf_u8 += sizeof(lv_color32_t) * 2; /*Skip the palette*/
uint8_t bit = x & 0x7;
x = x >> 3;
/*Get the current pixel.
*dsc->header.w + 7 means rounding up to 8 because the lines are byte aligned
*so the possible real width are 8 ,16, 24 ...*/
uint32_t px = ((dsc->header.w + 7) >> 3) * y + x;
buf_u8[px] = buf_u8[px] & ~(1 << (7 - bit));
buf_u8[px] = buf_u8[px] | ((c.full & 0x1) << (7 - bit));
}
else if(dsc->header.cf == LV_IMG_CF_INDEXED_2BIT) {
buf_u8 += sizeof(lv_color32_t) * 4; /*Skip the palette*/
uint8_t bit = (x & 0x3) * 2;
x = x >> 2;
/*Get the current pixel.
*dsc->header.w + 3 means rounding up to 4 because the lines are byte aligned
*so the possible real width are 4, 8 ,12 ...*/
uint32_t px = ((dsc->header.w + 3) >> 2) * y + x;
buf_u8[px] = buf_u8[px] & ~(3 << (6 - bit));
buf_u8[px] = buf_u8[px] | ((c.full & 0x3) << (6 - bit));
}
else if(dsc->header.cf == LV_IMG_CF_INDEXED_4BIT) {
buf_u8 += sizeof(lv_color32_t) * 16; /*Skip the palette*/
uint8_t bit = (x & 0x1) * 4;
x = x >> 1;
/*Get the current pixel.
*dsc->header.w + 1 means rounding up to 2 because the lines are byte aligned
*so the possible real width are 2 ,4, 6 ...*/
uint32_t px = ((dsc->header.w + 1) >> 1) * y + x;
buf_u8[px] = buf_u8[px] & ~(0xF << (4 - bit));
buf_u8[px] = buf_u8[px] | ((c.full & 0xF) << (4 - bit));
}
else if(dsc->header.cf == LV_IMG_CF_INDEXED_8BIT) {
buf_u8 += sizeof(lv_color32_t) * 256; /*Skip the palette*/
uint32_t px = dsc->header.w * y + x;
buf_u8[px] = c.full;
}
}
/**
* Set the palette color of an indexed image. Valid only for `LV_IMG_CF_INDEXED1/2/4/8`
* @param dsc pointer to an image descriptor
* @param id the palette color to set:
* - for `LV_IMG_CF_INDEXED1`: 0..1
* - for `LV_IMG_CF_INDEXED2`: 0..3
* - for `LV_IMG_CF_INDEXED4`: 0..15
* - for `LV_IMG_CF_INDEXED8`: 0..255
* @param c the color to set
*/
void lv_img_buf_set_palette(lv_img_dsc_t * dsc, uint8_t id, lv_color_t c)
{
if((dsc->header.cf == LV_IMG_CF_ALPHA_1BIT && id > 1) || (dsc->header.cf == LV_IMG_CF_ALPHA_2BIT && id > 3) ||
(dsc->header.cf == LV_IMG_CF_ALPHA_4BIT && id > 15) || (dsc->header.cf == LV_IMG_CF_ALPHA_8BIT)) {
LV_LOG_WARN("lv_img_buf_set_px_alpha: invalid 'id'");
return;
}
lv_color32_t c32;
c32.full = lv_color_to32(c);
uint8_t * buf = (uint8_t *)dsc->data;
lv_memcpy_small(&buf[id * sizeof(c32)], &c32, sizeof(c32));
}
/**
* Allocate an image buffer in RAM
* @param w width of image
* @param h height of image
* @param cf a color format (`LV_IMG_CF_...`)
* @return an allocated image, or NULL on failure
*/
lv_img_dsc_t * lv_img_buf_alloc(lv_coord_t w, lv_coord_t h, lv_img_cf_t cf)
{
/*Allocate image descriptor*/
lv_img_dsc_t * dsc = lv_mem_alloc(sizeof(lv_img_dsc_t));
if(dsc == NULL)
return NULL;
lv_memset_00(dsc, sizeof(lv_img_dsc_t));
/*Get image data size*/
dsc->data_size = lv_img_buf_get_img_size(w, h, cf);
if(dsc->data_size == 0) {
lv_mem_free(dsc);
return NULL;
}
/*Allocate raw buffer*/
dsc->data = lv_mem_alloc(dsc->data_size);
if(dsc->data == NULL) {
lv_mem_free(dsc);
return NULL;
}
lv_memset_00((uint8_t *)dsc->data, dsc->data_size);
/*Fill in header*/
dsc->header.always_zero = 0;
dsc->header.w = w;
dsc->header.h = h;
dsc->header.cf = cf;
return dsc;
}
/**
* Free an allocated image buffer
* @param dsc image buffer to free
*/
void lv_img_buf_free(lv_img_dsc_t * dsc)
{
if(dsc != NULL) {
if(dsc->data != NULL)
lv_mem_free((void *)dsc->data);
lv_mem_free(dsc);
}
}
/**
* Get the memory consumption of a raw bitmap, given color format and dimensions.
* @param w width
* @param h height
* @param cf color format
* @return size in bytes
*/
uint32_t lv_img_buf_get_img_size(lv_coord_t w, lv_coord_t h, lv_img_cf_t cf)
{
switch(cf) {
case LV_IMG_CF_TRUE_COLOR:
return LV_IMG_BUF_SIZE_TRUE_COLOR(w, h);
case LV_IMG_CF_TRUE_COLOR_ALPHA:
return LV_IMG_BUF_SIZE_TRUE_COLOR_ALPHA(w, h);
case LV_IMG_CF_TRUE_COLOR_CHROMA_KEYED:
return LV_IMG_BUF_SIZE_TRUE_COLOR_CHROMA_KEYED(w, h);
case LV_IMG_CF_ALPHA_1BIT:
return LV_IMG_BUF_SIZE_ALPHA_1BIT(w, h);
case LV_IMG_CF_ALPHA_2BIT:
return LV_IMG_BUF_SIZE_ALPHA_2BIT(w, h);
case LV_IMG_CF_ALPHA_4BIT:
return LV_IMG_BUF_SIZE_ALPHA_4BIT(w, h);
case LV_IMG_CF_ALPHA_8BIT:
return LV_IMG_BUF_SIZE_ALPHA_8BIT(w, h);
case LV_IMG_CF_INDEXED_1BIT:
return LV_IMG_BUF_SIZE_INDEXED_1BIT(w, h);
case LV_IMG_CF_INDEXED_2BIT:
return LV_IMG_BUF_SIZE_INDEXED_2BIT(w, h);
case LV_IMG_CF_INDEXED_4BIT:
return LV_IMG_BUF_SIZE_INDEXED_4BIT(w, h);
case LV_IMG_CF_INDEXED_8BIT:
return LV_IMG_BUF_SIZE_INDEXED_8BIT(w, h);
default:
return 0;
}
}
#if LV_DRAW_COMPLEX
/**
* Initialize a descriptor to transform an image
* @param dsc pointer to an `lv_img_transform_dsc_t` variable whose `cfg` field is initialized
*/
void _lv_img_buf_transform_init(lv_img_transform_dsc_t * dsc)
{
dsc->tmp.pivot_x_256 = dsc->cfg.pivot_x * 256;
dsc->tmp.pivot_y_256 = dsc->cfg.pivot_y * 256;
int32_t angle_low = dsc->cfg.angle / 10;
int32_t angle_high = angle_low + 1;
int32_t angle_rem = dsc->cfg.angle - (angle_low * 10);
int32_t s1 = lv_trigo_sin(-angle_low);
int32_t s2 = lv_trigo_sin(-angle_high);
int32_t c1 = lv_trigo_sin(-angle_low + 90);
int32_t c2 = lv_trigo_sin(-angle_high + 90);
dsc->tmp.sinma = (s1 * (10 - angle_rem) + s2 * angle_rem) / 10;
dsc->tmp.cosma = (c1 * (10 - angle_rem) + c2 * angle_rem) / 10;
/*Use smaller value to avoid overflow*/
dsc->tmp.sinma = dsc->tmp.sinma >> (LV_TRIGO_SHIFT - _LV_TRANSFORM_TRIGO_SHIFT);
dsc->tmp.cosma = dsc->tmp.cosma >> (LV_TRIGO_SHIFT - _LV_TRANSFORM_TRIGO_SHIFT);
dsc->tmp.chroma_keyed = lv_img_cf_is_chroma_keyed(dsc->cfg.cf) ? 1 : 0;
dsc->tmp.has_alpha = lv_img_cf_has_alpha(dsc->cfg.cf) ? 1 : 0;
if(dsc->cfg.cf == LV_IMG_CF_TRUE_COLOR || dsc->cfg.cf == LV_IMG_CF_TRUE_COLOR_ALPHA ||
dsc->cfg.cf == LV_IMG_CF_TRUE_COLOR_CHROMA_KEYED) {
dsc->tmp.native_color = 1;
}
else {
dsc->tmp.native_color = 0;
}
dsc->tmp.img_dsc.data = dsc->cfg.src;
dsc->tmp.img_dsc.header.always_zero = 0;
dsc->tmp.img_dsc.header.cf = dsc->cfg.cf;
dsc->tmp.img_dsc.header.w = dsc->cfg.src_w;
dsc->tmp.img_dsc.header.h = dsc->cfg.src_h;
/*The inverse of the zoom will be sued during the transformation
* + dsc->cfg.zoom / 2 for rounding*/
dsc->tmp.zoom_inv = (((256 * 256) << _LV_ZOOM_INV_UPSCALE) + dsc->cfg.zoom / 2) / dsc->cfg.zoom;
dsc->res.opa = LV_OPA_COVER;
dsc->res.color = dsc->cfg.color;
}
#endif
/**
* Get the area of a rectangle if its rotated and scaled
* @param res store the coordinates here
* @param w width of the rectangle to transform
* @param h height of the rectangle to transform
* @param angle angle of rotation
* @param zoom zoom, (256 no zoom)
* @param pivot x,y pivot coordinates of rotation
*/
void _lv_img_buf_get_transformed_area(lv_area_t * res, lv_coord_t w, lv_coord_t h, int16_t angle, uint16_t zoom,
const lv_point_t * pivot)
{
#if LV_DRAW_COMPLEX
if(angle == 0 && zoom == LV_IMG_ZOOM_NONE) {
res->x1 = 0;
res->y1 = 0;
res->x2 = w - 1;
res->y2 = h - 1;
return;
}
res->x1 = (((int32_t)(-pivot->x) * zoom) >> 8) - 1;
res->y1 = (((int32_t)(-pivot->y) * zoom) >> 8) - 1;
res->x2 = (((int32_t)(w - pivot->x) * zoom) >> 8) + 2;
res->y2 = (((int32_t)(h - pivot->y) * zoom) >> 8) + 2;
if(angle == 0) {
res->x1 += pivot->x;
res->y1 += pivot->y;
res->x2 += pivot->x;
res->y2 += pivot->y;
return;
}
int32_t angle_low = angle / 10;
int32_t angle_high = angle_low + 1;
int32_t angle_rem = angle - (angle_low * 10);
int32_t s1 = lv_trigo_sin(angle_low);
int32_t s2 = lv_trigo_sin(angle_high);
int32_t c1 = lv_trigo_sin(angle_low + 90);
int32_t c2 = lv_trigo_sin(angle_high + 90);
int32_t sinma = (s1 * (10 - angle_rem) + s2 * angle_rem) / 10;
int32_t cosma = (c1 * (10 - angle_rem) + c2 * angle_rem) / 10;
/*Use smaller value to avoid overflow*/
sinma = sinma >> (LV_TRIGO_SHIFT - _LV_TRANSFORM_TRIGO_SHIFT);
cosma = cosma >> (LV_TRIGO_SHIFT - _LV_TRANSFORM_TRIGO_SHIFT);
lv_point_t lt;
lv_point_t rt;
lv_point_t lb;
lv_point_t rb;
lv_coord_t xt;
lv_coord_t yt;
xt = res->x1;
yt = res->y1;
lt.x = ((cosma * xt - sinma * yt) >> _LV_TRANSFORM_TRIGO_SHIFT) + pivot->x;
lt.y = ((sinma * xt + cosma * yt) >> _LV_TRANSFORM_TRIGO_SHIFT) + pivot->y;
xt = res->x2;
yt = res->y1;
rt.x = ((cosma * xt - sinma * yt) >> _LV_TRANSFORM_TRIGO_SHIFT) + pivot->x;
rt.y = ((sinma * xt + cosma * yt) >> _LV_TRANSFORM_TRIGO_SHIFT) + pivot->y;
xt = res->x1;
yt = res->y2;
lb.x = ((cosma * xt - sinma * yt) >> _LV_TRANSFORM_TRIGO_SHIFT) + pivot->x;
lb.y = ((sinma * xt + cosma * yt) >> _LV_TRANSFORM_TRIGO_SHIFT) + pivot->y;
xt = res->x2;
yt = res->y2;
rb.x = ((cosma * xt - sinma * yt) >> _LV_TRANSFORM_TRIGO_SHIFT) + pivot->x;
rb.y = ((sinma * xt + cosma * yt) >> _LV_TRANSFORM_TRIGO_SHIFT) + pivot->y;
res->x1 = LV_MIN4(lb.x, lt.x, rb.x, rt.x);
res->x2 = LV_MAX4(lb.x, lt.x, rb.x, rt.x);
res->y1 = LV_MIN4(lb.y, lt.y, rb.y, rt.y);
res->y2 = LV_MAX4(lb.y, lt.y, rb.y, rt.y);
#else
LV_UNUSED(angle);
LV_UNUSED(zoom);
LV_UNUSED(pivot);
res->x1 = 0;
res->y1 = 0;
res->x2 = w - 1;
res->y2 = h - 1;
#endif
}
#if LV_DRAW_COMPLEX
/**
* Get which color and opa would come to a pixel if it were rotated
* @param dsc a descriptor initialized by `lv_img_buf_rotate_init`
* @param x the coordinate which color and opa should be get
* @param y the coordinate which color and opa should be get
* @return true: there is valid pixel on these x/y coordinates; false: the rotated pixel was out of the image
* @note the result is written back to `dsc->res_color` and `dsc->res_opa`
*/
bool _lv_img_buf_transform(lv_img_transform_dsc_t * dsc, lv_coord_t x, lv_coord_t y)
{
const uint8_t * src_u8 = (const uint8_t *)dsc->cfg.src;
/*Get the target point relative coordinates to the pivot*/
int32_t xt = x - dsc->cfg.pivot_x;
int32_t yt = y - dsc->cfg.pivot_y;
int32_t xs;
int32_t ys;
if(dsc->cfg.zoom == LV_IMG_ZOOM_NONE) {
/*Get the source pixel from the upscaled image*/
xs = ((dsc->tmp.cosma * xt - dsc->tmp.sinma * yt) >> (_LV_TRANSFORM_TRIGO_SHIFT - 8)) + dsc->tmp.pivot_x_256;
ys = ((dsc->tmp.sinma * xt + dsc->tmp.cosma * yt) >> (_LV_TRANSFORM_TRIGO_SHIFT - 8)) + dsc->tmp.pivot_y_256;
}
else if(dsc->cfg.angle == 0) {
xt = (int32_t)((int32_t)xt * dsc->tmp.zoom_inv) >> _LV_ZOOM_INV_UPSCALE;
yt = (int32_t)((int32_t)yt * dsc->tmp.zoom_inv) >> _LV_ZOOM_INV_UPSCALE;
xs = xt + dsc->tmp.pivot_x_256;
ys = yt + dsc->tmp.pivot_y_256;
}
else {
xt = (int32_t)((int32_t)xt * dsc->tmp.zoom_inv) >> _LV_ZOOM_INV_UPSCALE;
yt = (int32_t)((int32_t)yt * dsc->tmp.zoom_inv) >> _LV_ZOOM_INV_UPSCALE;
xs = ((dsc->tmp.cosma * xt - dsc->tmp.sinma * yt) >> (_LV_TRANSFORM_TRIGO_SHIFT)) + dsc->tmp.pivot_x_256;
ys = ((dsc->tmp.sinma * xt + dsc->tmp.cosma * yt) >> (_LV_TRANSFORM_TRIGO_SHIFT)) + dsc->tmp.pivot_y_256;
}
/*Get the integer part of the source pixel*/
int32_t xs_int = xs >> 8;
int32_t ys_int = ys >> 8;
if(xs_int >= dsc->cfg.src_w) return false;
else if(xs_int < 0) return false;
if(ys_int >= dsc->cfg.src_h) return false;
else if(ys_int < 0) return false;
uint8_t px_size;
uint32_t pxi;
if(dsc->tmp.native_color) {
if(dsc->tmp.has_alpha == 0) {
px_size = LV_COLOR_SIZE >> 3;
pxi = dsc->cfg.src_w * ys_int * px_size + xs_int * px_size;
lv_memcpy_small(&dsc->res.color, &src_u8[pxi], px_size);
}
else {
px_size = LV_IMG_PX_SIZE_ALPHA_BYTE;
pxi = dsc->cfg.src_w * ys_int * px_size + xs_int * px_size;
lv_memcpy_small(&dsc->res.color, &src_u8[pxi], px_size - 1);
dsc->res.opa = src_u8[pxi + px_size - 1];
}
}
else {
pxi = 0; /*unused*/
px_size = 0; /*unused*/
dsc->res.color = lv_img_buf_get_px_color(&dsc->tmp.img_dsc, xs_int, ys_int, dsc->cfg.color);
dsc->res.opa = lv_img_buf_get_px_alpha(&dsc->tmp.img_dsc, xs_int, ys_int);
}
if(dsc->tmp.chroma_keyed) {
lv_color_t ct = LV_COLOR_CHROMA_KEY;
if(dsc->res.color.full == ct.full) return false;
}
if(dsc->cfg.antialias == false) return true;
dsc->tmp.xs = xs;
dsc->tmp.ys = ys;
dsc->tmp.xs_int = xs_int;
dsc->tmp.ys_int = ys_int;
dsc->tmp.pxi = pxi;
dsc->tmp.px_size = px_size;
bool ret;
ret = _lv_img_buf_transform_anti_alias(dsc);
return ret;
}
/**
* Continue transformation by taking the neighbors into account
* @param dsc pointer to the transformation descriptor
*/
bool _lv_img_buf_transform_anti_alias(lv_img_transform_dsc_t * dsc)
{
const uint8_t * src_u8 = dsc->cfg.src;
/*Get the fractional part of the source pixel*/
int xs_fract = dsc->tmp.xs & 0xff;
int ys_fract = dsc->tmp.ys & 0xff;
int32_t xn; /*x neighbor*/
lv_opa_t xr; /*x mix ratio*/
if(xs_fract < 0x70) {
xn = - 1;
if(dsc->tmp.xs_int + xn < 0) xn = 0;
xr = xs_fract + 0x80;
}
else if(xs_fract > 0x90) {
xn = 1;
if(dsc->tmp.xs_int + xn >= dsc->cfg.src_w) xn = 0;
xr = (0xFF - xs_fract) + 0x80;
}
else {
xn = 0;
xr = 0xFF;
}
int32_t yn; /*x neighbor*/
lv_opa_t yr; /*x mix ratio*/
if(ys_fract < 0x70) {
yn = - 1;
if(dsc->tmp.ys_int + yn < 0) yn = 0;
yr = ys_fract + 0x80;
}
else if(ys_fract > 0x90) {
yn = 1;
if(dsc->tmp.ys_int + yn >= dsc->cfg.src_h) yn = 0;
yr = (0xFF - ys_fract) + 0x80;
}
else {
yn = 0;
yr = 0xFF;
}
lv_color_t c00 = dsc->res.color;
lv_color_t c01;
lv_color_t c10;
lv_color_t c11;
lv_opa_t a00 = dsc->res.opa;
lv_opa_t a10 = 0;
lv_opa_t a01 = 0;
lv_opa_t a11 = 0;
if(dsc->tmp.native_color) {
lv_memcpy_small(&c01, &src_u8[dsc->tmp.pxi + dsc->tmp.px_size * xn], sizeof(lv_color_t));
lv_memcpy_small(&c10, &src_u8[dsc->tmp.pxi + dsc->cfg.src_w * dsc->tmp.px_size * yn], sizeof(lv_color_t));
lv_memcpy_small(&c11, &src_u8[dsc->tmp.pxi + dsc->cfg.src_w * dsc->tmp.px_size * yn + dsc->tmp.px_size * xn],
sizeof(lv_color_t));
if(dsc->tmp.has_alpha) {
a10 = src_u8[dsc->tmp.pxi + dsc->tmp.px_size * xn + dsc->tmp.px_size - 1];
a01 = src_u8[dsc->tmp.pxi + dsc->cfg.src_w * dsc->tmp.px_size * yn + dsc->tmp.px_size - 1];
a11 = src_u8[dsc->tmp.pxi + dsc->cfg.src_w * dsc->tmp.px_size * yn + dsc->tmp.px_size * xn + dsc->tmp.px_size - 1];
}
}
else {
c01 = lv_img_buf_get_px_color(&dsc->tmp.img_dsc, dsc->tmp.xs_int + xn, dsc->tmp.ys_int, dsc->cfg.color);
c10 = lv_img_buf_get_px_color(&dsc->tmp.img_dsc, dsc->tmp.xs_int, dsc->tmp.ys_int + yn, dsc->cfg.color);
c11 = lv_img_buf_get_px_color(&dsc->tmp.img_dsc, dsc->tmp.xs_int + xn, dsc->tmp.ys_int + yn, dsc->cfg.color);
if(dsc->tmp.has_alpha) {
a10 = lv_img_buf_get_px_alpha(&dsc->tmp.img_dsc, dsc->tmp.xs_int + xn, dsc->tmp.ys_int);
a01 = lv_img_buf_get_px_alpha(&dsc->tmp.img_dsc, dsc->tmp.xs_int, dsc->tmp.ys_int + yn);
a11 = lv_img_buf_get_px_alpha(&dsc->tmp.img_dsc, dsc->tmp.xs_int + xn, dsc->tmp.ys_int + yn);
}
}
lv_opa_t xr0 = xr;
lv_opa_t xr1 = xr;
if(dsc->tmp.has_alpha) {
lv_opa_t a0 = (a00 * xr + (a10 * (255 - xr))) >> 8;
lv_opa_t a1 = (a01 * xr + (a11 * (255 - xr))) >> 8;
dsc->res.opa = (a0 * yr + (a1 * (255 - yr))) >> 8;
if(a0 <= LV_OPA_MIN && a1 <= LV_OPA_MIN) return false;
if(a0 <= LV_OPA_MIN) yr = LV_OPA_TRANSP;
if(a1 <= LV_OPA_MIN) yr = LV_OPA_COVER;
if(a00 <= LV_OPA_MIN) xr0 = LV_OPA_TRANSP;
if(a10 <= LV_OPA_MIN) xr0 = LV_OPA_COVER;
if(a01 <= LV_OPA_MIN) xr1 = LV_OPA_TRANSP;
if(a11 <= LV_OPA_MIN) xr1 = LV_OPA_COVER;
}
else {
xr0 = xr;
xr1 = xr;
dsc->res.opa = LV_OPA_COVER;
}
lv_color_t c0;
if(xr0 == LV_OPA_TRANSP) c0 = c01;
else if(xr0 == LV_OPA_COVER) c0 = c00;
else c0 = lv_color_mix(c00, c01, xr0);
lv_color_t c1;
if(xr1 == LV_OPA_TRANSP) c1 = c11;
else if(xr1 == LV_OPA_COVER) c1 = c10;
else c1 = lv_color_mix(c10, c11, xr1);
if(yr == LV_OPA_TRANSP) dsc->res.color = c1;
else if(yr == LV_OPA_COVER) dsc->res.color = c0;
else dsc->res.color = lv_color_mix(c0, c1, yr);
return true;
}
#endif
/**********************
* STATIC FUNCTIONS
**********************/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/draw/lv_img_buf.c | C | apache-2.0 | 27,213 |
/**
* @file lv_img_buf.h
*
*/
#ifndef LV_IMG_BUF_H
#define LV_IMG_BUF_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include <stdbool.h>
#include "../misc/lv_color.h"
#include "../misc/lv_area.h"
/*********************
* DEFINES
*********************/
/*If image pixels contains alpha we need to know how much byte is a pixel*/
#if LV_COLOR_DEPTH == 1 || LV_COLOR_DEPTH == 8
#define LV_IMG_PX_SIZE_ALPHA_BYTE 2
#elif LV_COLOR_DEPTH == 16
#define LV_IMG_PX_SIZE_ALPHA_BYTE 3
#elif LV_COLOR_DEPTH == 32
#define LV_IMG_PX_SIZE_ALPHA_BYTE 4
#endif
#define LV_IMG_BUF_SIZE_TRUE_COLOR(w, h) ((LV_COLOR_SIZE / 8) * w * h)
#define LV_IMG_BUF_SIZE_TRUE_COLOR_CHROMA_KEYED(w, h) ((LV_COLOR_SIZE / 8) * w * h)
#define LV_IMG_BUF_SIZE_TRUE_COLOR_ALPHA(w, h) (LV_IMG_PX_SIZE_ALPHA_BYTE * w * h)
/*+ 1: to be sure no fractional row*/
#define LV_IMG_BUF_SIZE_ALPHA_1BIT(w, h) ((((w / 8) + 1) * h))
#define LV_IMG_BUF_SIZE_ALPHA_2BIT(w, h) ((((w / 4) + 1) * h))
#define LV_IMG_BUF_SIZE_ALPHA_4BIT(w, h) ((((w / 2) + 1) * h))
#define LV_IMG_BUF_SIZE_ALPHA_8BIT(w, h) ((w * h))
/*4 * X: for palette*/
#define LV_IMG_BUF_SIZE_INDEXED_1BIT(w, h) (LV_IMG_BUF_SIZE_ALPHA_1BIT(w, h) + 4 * 2)
#define LV_IMG_BUF_SIZE_INDEXED_2BIT(w, h) (LV_IMG_BUF_SIZE_ALPHA_2BIT(w, h) + 4 * 4)
#define LV_IMG_BUF_SIZE_INDEXED_4BIT(w, h) (LV_IMG_BUF_SIZE_ALPHA_4BIT(w, h) + 4 * 16)
#define LV_IMG_BUF_SIZE_INDEXED_8BIT(w, h) (LV_IMG_BUF_SIZE_ALPHA_8BIT(w, h) + 4 * 256)
#define _LV_TRANSFORM_TRIGO_SHIFT 10
#define _LV_ZOOM_INV_UPSCALE 5
/**********************
* TYPEDEFS
**********************/
/*Image color format*/
enum {
LV_IMG_CF_UNKNOWN = 0,
LV_IMG_CF_RAW, /**< Contains the file as it is. Needs custom decoder function*/
LV_IMG_CF_RAW_ALPHA, /**< Contains the file as it is. The image has alpha. Needs custom decoder
function*/
LV_IMG_CF_RAW_CHROMA_KEYED, /**< Contains the file as it is. The image is chroma keyed. Needs
custom decoder function*/
LV_IMG_CF_TRUE_COLOR, /**< Color format and depth should match with LV_COLOR settings*/
LV_IMG_CF_TRUE_COLOR_ALPHA, /**< Same as `LV_IMG_CF_TRUE_COLOR` but every pixel has an alpha byte*/
LV_IMG_CF_TRUE_COLOR_CHROMA_KEYED, /**< Same as `LV_IMG_CF_TRUE_COLOR` but LV_COLOR_TRANSP pixels
will be transparent*/
LV_IMG_CF_INDEXED_1BIT, /**< Can have 2 different colors in a palette (always chroma keyed)*/
LV_IMG_CF_INDEXED_2BIT, /**< Can have 4 different colors in a palette (always chroma keyed)*/
LV_IMG_CF_INDEXED_4BIT, /**< Can have 16 different colors in a palette (always chroma keyed)*/
LV_IMG_CF_INDEXED_8BIT, /**< Can have 256 different colors in a palette (always chroma keyed)*/
LV_IMG_CF_ALPHA_1BIT, /**< Can have one color and it can be drawn or not*/
LV_IMG_CF_ALPHA_2BIT, /**< Can have one color but 4 different alpha value*/
LV_IMG_CF_ALPHA_4BIT, /**< Can have one color but 16 different alpha value*/
LV_IMG_CF_ALPHA_8BIT, /**< Can have one color but 256 different alpha value*/
LV_IMG_CF_RESERVED_15, /**< Reserved for further use.*/
LV_IMG_CF_RESERVED_16, /**< Reserved for further use.*/
LV_IMG_CF_RESERVED_17, /**< Reserved for further use.*/
LV_IMG_CF_RESERVED_18, /**< Reserved for further use.*/
LV_IMG_CF_RESERVED_19, /**< Reserved for further use.*/
LV_IMG_CF_RESERVED_20, /**< Reserved for further use.*/
LV_IMG_CF_RESERVED_21, /**< Reserved for further use.*/
LV_IMG_CF_RESERVED_22, /**< Reserved for further use.*/
LV_IMG_CF_RESERVED_23, /**< Reserved for further use.*/
LV_IMG_CF_USER_ENCODED_0, /**< User holder encoding format.*/
LV_IMG_CF_USER_ENCODED_1, /**< User holder encoding format.*/
LV_IMG_CF_USER_ENCODED_2, /**< User holder encoding format.*/
LV_IMG_CF_USER_ENCODED_3, /**< User holder encoding format.*/
LV_IMG_CF_USER_ENCODED_4, /**< User holder encoding format.*/
LV_IMG_CF_USER_ENCODED_5, /**< User holder encoding format.*/
LV_IMG_CF_USER_ENCODED_6, /**< User holder encoding format.*/
LV_IMG_CF_USER_ENCODED_7, /**< User holder encoding format.*/
};
typedef uint8_t lv_img_cf_t;
/**
* The first 8 bit is very important to distinguish the different source types.
* For more info see `lv_img_get_src_type()` in lv_img.c
* On big endian systems the order is reversed so cf and always_zero must be at
* the end of the struct.
*/
#if LV_BIG_ENDIAN_SYSTEM
typedef struct {
uint32_t h : 11; /*Height of the image map*/
uint32_t w : 11; /*Width of the image map*/
uint32_t reserved : 2; /*Reserved to be used later*/
uint32_t always_zero : 3; /*It the upper bits of the first byte. Always zero to look like a
non-printable character*/
uint32_t cf : 5; /*Color format: See `lv_img_color_format_t`*/
} lv_img_header_t;
#else
typedef struct {
uint32_t cf : 5; /*Color format: See `lv_img_color_format_t`*/
uint32_t always_zero : 3; /*It the upper bits of the first byte. Always zero to look like a
non-printable character*/
uint32_t reserved : 2; /*Reserved to be used later*/
uint32_t w : 11; /*Width of the image map*/
uint32_t h : 11; /*Height of the image map*/
} lv_img_header_t;
#endif
/** Image header it is compatible with
* the result from image converter utility*/
typedef struct {
lv_img_header_t header; /**< A header describing the basics of the image*/
uint32_t data_size; /**< Size of the image in bytes*/
const uint8_t * data; /**< Pointer to the data of the image*/
} lv_img_dsc_t;
typedef struct {
struct {
const void * src; /*image source (array of pixels)*/
lv_coord_t src_w; /*width of the image source*/
lv_coord_t src_h; /*height of the image source*/
lv_coord_t pivot_x; /*pivot x*/
lv_coord_t pivot_y; /*pivot y*/
int16_t angle; /*angle to rotate*/
uint16_t zoom; /*256 no zoom, 128 half size, 512 double size*/
lv_color_t color; /*a color used for `LV_IMG_CF_INDEXED_1/2/4/8BIT` color formats*/
lv_img_cf_t cf; /*color format of the image to rotate*/
bool antialias;
} cfg;
struct {
lv_color_t color;
lv_opa_t opa;
} res;
struct {
lv_img_dsc_t img_dsc;
int32_t pivot_x_256;
int32_t pivot_y_256;
int32_t sinma;
int32_t cosma;
uint8_t chroma_keyed : 1;
uint8_t has_alpha : 1;
uint8_t native_color : 1;
uint32_t zoom_inv;
/*Runtime data*/
lv_coord_t xs;
lv_coord_t ys;
lv_coord_t xs_int;
lv_coord_t ys_int;
uint32_t pxi;
uint8_t px_size;
} tmp;
} lv_img_transform_dsc_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Allocate an image buffer in RAM
* @param w width of image
* @param h height of image
* @param cf a color format (`LV_IMG_CF_...`)
* @return an allocated image, or NULL on failure
*/
lv_img_dsc_t * lv_img_buf_alloc(lv_coord_t w, lv_coord_t h, lv_img_cf_t cf);
/**
* Get the color of an image's pixel
* @param dsc an image descriptor
* @param x x coordinate of the point to get
* @param y x coordinate of the point to get
* @param color the color of the image. In case of `LV_IMG_CF_ALPHA_1/2/4/8` this color is used.
* Not used in other cases.
* @param safe true: check out of bounds
* @return color of the point
*/
lv_color_t lv_img_buf_get_px_color(lv_img_dsc_t * dsc, lv_coord_t x, lv_coord_t y, lv_color_t color);
/**
* Get the alpha value of an image's pixel
* @param dsc pointer to an image descriptor
* @param x x coordinate of the point to set
* @param y x coordinate of the point to set
* @param safe true: check out of bounds
* @return alpha value of the point
*/
lv_opa_t lv_img_buf_get_px_alpha(lv_img_dsc_t * dsc, lv_coord_t x, lv_coord_t y);
/**
* Set the color of a pixel of an image. The alpha channel won't be affected.
* @param dsc pointer to an image descriptor
* @param x x coordinate of the point to set
* @param y x coordinate of the point to set
* @param c color of the point
* @param safe true: check out of bounds
*/
void lv_img_buf_set_px_color(lv_img_dsc_t * dsc, lv_coord_t x, lv_coord_t y, lv_color_t c);
/**
* Set the alpha value of a pixel of an image. The color won't be affected
* @param dsc pointer to an image descriptor
* @param x x coordinate of the point to set
* @param y x coordinate of the point to set
* @param opa the desired opacity
* @param safe true: check out of bounds
*/
void lv_img_buf_set_px_alpha(lv_img_dsc_t * dsc, lv_coord_t x, lv_coord_t y, lv_opa_t opa);
/**
* Set the palette color of an indexed image. Valid only for `LV_IMG_CF_INDEXED1/2/4/8`
* @param dsc pointer to an image descriptor
* @param id the palette color to set:
* - for `LV_IMG_CF_INDEXED1`: 0..1
* - for `LV_IMG_CF_INDEXED2`: 0..3
* - for `LV_IMG_CF_INDEXED4`: 0..15
* - for `LV_IMG_CF_INDEXED8`: 0..255
* @param c the color to set
*/
void lv_img_buf_set_palette(lv_img_dsc_t * dsc, uint8_t id, lv_color_t c);
/**
* Free an allocated image buffer
* @param dsc image buffer to free
*/
void lv_img_buf_free(lv_img_dsc_t * dsc);
/**
* Get the memory consumption of a raw bitmap, given color format and dimensions.
* @param w width
* @param h height
* @param cf color format
* @return size in bytes
*/
uint32_t lv_img_buf_get_img_size(lv_coord_t w, lv_coord_t h, lv_img_cf_t cf);
#if LV_DRAW_COMPLEX
/**
* Initialize a descriptor to rotate an image
* @param dsc pointer to an `lv_img_transform_dsc_t` variable whose `cfg` field is initialized
*/
void _lv_img_buf_transform_init(lv_img_transform_dsc_t * dsc);
/**
* Continue transformation by taking the neighbors into account
* @param dsc pointer to the transformation descriptor
*/
bool _lv_img_buf_transform_anti_alias(lv_img_transform_dsc_t * dsc);
/**
* Get which color and opa would come to a pixel if it were rotated
* @param dsc a descriptor initialized by `lv_img_buf_rotate_init`
* @param x the coordinate which color and opa should be get
* @param y the coordinate which color and opa should be get
* @return true: there is valid pixel on these x/y coordinates; false: the rotated pixel was out of the image
* @note the result is written back to `dsc->res_color` and `dsc->res_opa`
*/
bool _lv_img_buf_transform(lv_img_transform_dsc_t * dsc, lv_coord_t x, lv_coord_t y);
#endif
/**
* Get the area of a rectangle if its rotated and scaled
* @param res store the coordinates here
* @param w width of the rectangle to transform
* @param h height of the rectangle to transform
* @param angle angle of rotation
* @param zoom zoom, (256 no zoom)
* @param pivot x,y pivot coordinates of rotation
*/
void _lv_img_buf_get_transformed_area(lv_area_t * res, lv_coord_t w, lv_coord_t h, int16_t angle, uint16_t zoom,
const lv_point_t * pivot);
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_IMG_BUF_H*/
| YifuLiu/AliOS-Things | components/py_engine/engine/lib/lv_bindings/lvgl/src/draw/lv_img_buf.h | C | apache-2.0 | 11,567 |