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#---------------------------------------------------------------------------------------------------------------------#
# Comfyroll Studio custom nodes by RockOfFire and Akatsuzi https://github.com/Suzie1/ComfyUI_Comfyroll_CustomNodes
# for ComfyUI https://github.com/comfyanonymous/ComfyUI
#---------------------------------------------------------------------------------------------------------------------#
# these functions are a straight clone from
# https://github.com/LEv145/images-grid-comfy-plugin
import typing as t
from dataclasses import dataclass
from contextlib import suppress
from PIL import Image, ImageDraw, ImageFont
WIDEST_LETTER = "W"
@dataclass
class Annotation():
column_texts: list[str]
row_texts: list[str]
font: ImageFont.FreeTypeFont
def create_images_grid_by_columns(
images: list[Image.Image],
gap: int,
max_columns: int,
annotation: t.Optional[Annotation] = None,
) -> Image.Image:
max_rows = (len(images) + max_columns - 1) // max_columns
return _create_images_grid(images, gap, max_columns, max_rows, annotation)
def create_images_grid_by_rows(
images: list[Image.Image],
gap: int,
max_rows: int,
annotation: t.Optional[Annotation] = None,
) -> Image.Image:
max_columns = (len(images) + max_rows - 1) // max_rows
return _create_images_grid(images, gap, max_columns, max_rows, annotation)
@dataclass
class _GridInfo():
image: Image.Image
gap: int
one_image_size: tuple[int, int]
def _create_images_grid(
images: list[Image.Image],
gap: int,
max_columns: int,
max_rows: int,
annotation: t.Optional[Annotation],
) -> Image.Image:
size = images[0].size
grid_width = size[0] * max_columns + (max_columns - 1) * gap
grid_height = size[1] * max_rows + (max_rows - 1) * gap
grid_image = Image.new("RGB", (grid_width, grid_height), color="white")
_arrange_images_on_grid(grid_image, images=images, size=size, max_columns=max_columns, gap=gap)
if annotation is None:
return grid_image
return _create_grid_annotation(
grid_info=_GridInfo(
image=grid_image,
gap=gap,
one_image_size=size,
),
column_texts=annotation.column_texts,
row_texts=annotation.row_texts,
font=annotation.font,
)
def _arrange_images_on_grid(
grid_image: Image.Image,
/,
images: list[Image.Image],
size: tuple[int, int],
max_columns: int,
gap: int,
):
for i, image in enumerate(images):
x = (i % max_columns) * (size[0] + gap)
y = (i // max_columns) * (size[1] + gap)
grid_image.paste(image, (x, y))
def _create_grid_annotation(
grid_info: _GridInfo,
column_texts: list[str],
row_texts: list[str],
font: ImageFont.FreeTypeFont,
) -> Image.Image:
if not column_texts and not row_texts:
raise ValueError("Column text and row text is empty")
grid = grid_info.image
left_padding = 0
top_padding = 0
if row_texts:
left_padding = int(
max(
font.getlength(splitted_text)
for raw_text in row_texts
for splitted_text in raw_text.split("\n")
)
+ font.getlength(WIDEST_LETTER)*2
)
if column_texts:
top_padding = int(font.size * 2)
image = Image.new(
"RGB",
(grid.size[0] + left_padding, grid.size[1] + top_padding),
color="white",
)
draw = ImageDraw.Draw(image)
# https://github.com/python-pillow/Pillow/blob/9.5.x/docs/reference/ImageDraw.rst
draw.font = font # type: ignore
_paste_image_to_lower_left_corner(image, grid)
if column_texts:
_draw_column_text(
draw=draw,
texts=column_texts,
grid_info=grid_info,
left_padding=left_padding,
top_padding=top_padding,
)
if row_texts:
_draw_row_text(
draw=draw,
texts=row_texts,
grid_info=grid_info,
left_padding=left_padding,
top_padding=top_padding,
)
return image
def _draw_column_text(
draw: ImageDraw.ImageDraw,
texts: list[str],
grid_info: _GridInfo,
left_padding: int,
top_padding: int,
) -> None:
i = 0
x0 = left_padding
y0 = 0
x1 = left_padding + grid_info.one_image_size[0]
y1 = top_padding
while x0 != grid_info.image.size[0] + left_padding + grid_info.gap:
i = _draw_text_by_xy((x0, y0, x1, y1), i, draw=draw, texts=texts)
x0 += grid_info.one_image_size[0] + grid_info.gap
x1 += grid_info.one_image_size[0] + grid_info.gap
def _draw_row_text(
draw: ImageDraw.ImageDraw,
texts: list[str],
grid_info: _GridInfo,
left_padding: int,
top_padding: int,
) -> None:
i = 0
x0 = 0
y0 = top_padding
x1 = left_padding
y1 = top_padding + grid_info.one_image_size[1]
while y0 != grid_info.image.size[1] + top_padding + grid_info.gap:
i = _draw_text_by_xy((x0, y0, x1, y1), i, draw=draw, texts=texts)
y0 += grid_info.one_image_size[1] + grid_info.gap
y1 += grid_info.one_image_size[1] + grid_info.gap
def _draw_text_by_xy(
xy: tuple[int, int, int, int],
index: int,
\
draw: ImageDraw.ImageDraw,
texts: list[str],
) -> int:
with suppress(IndexError):
_draw_center_text(draw, xy, texts[index])
return index + 1
def _draw_center_text(
draw: ImageDraw.ImageDraw,
xy: tuple[int, int, int, int],
text: str,
fill: t.Any = "black",
) -> None:
_, _, *text_size = draw.textbbox((0, 0), text)
draw.multiline_text(
(
(xy[2] - text_size[0] + xy[0]) / 2,
(xy[3] - text_size[1] + xy[1]) / 2,
),
text,
fill=fill,
)
def _paste_image_to_lower_left_corner(base: Image.Image, image: Image.Image) -> None:
base.paste(image, (base.size[0] - image.size[0], base.size[1] - image.size[1]))
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