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use super::tool_prelude::*;
#[derive(Default)]
pub struct NavigateTool {
fsm_state: NavigateToolFsmState,
tool_data: NavigateToolData,
}
#[impl_message(Message, ToolMessage, Navigate)]
#[derive(PartialEq, Eq, Clone, Debug, Hash, serde::Serialize, serde::Deserialize, specta::Type)]
pub enum NavigateToolMessage {
// Standard messages
Abort,
// Tool-specific messages
PointerUp { zoom_in: bool },
PointerMove { snap: Key },
TiltCanvasBegin,
ZoomCanvasBegin,
End,
}
impl ToolMetadata for NavigateTool {
fn icon_name(&self) -> String {
"GeneralNavigateTool".into()
}
fn tooltip(&self) -> String {
"Navigate Tool".into()
}
fn tool_type(&self) -> crate::messages::tool::utility_types::ToolType {
ToolType::Navigate
}
}
impl LayoutHolder for NavigateTool {
fn layout(&self) -> Layout {
Layout::WidgetLayout(WidgetLayout::default())
}
}
impl<'a> MessageHandler<ToolMessage, &mut ToolActionHandlerData<'a>> for NavigateTool {
fn process_message(&mut self, message: ToolMessage, responses: &mut VecDeque<Message>, tool_data: &mut ToolActionHandlerData<'a>) {
self.fsm_state.process_event(message, &mut self.tool_data, tool_data, &(), responses, true);
}
fn actions(&self) -> ActionList {
match self.fsm_state {
NavigateToolFsmState::Ready => actions!(NavigateToolMessageDiscriminant;
TiltCanvasBegin,
ZoomCanvasBegin,
),
NavigateToolFsmState::Tilting | NavigateToolFsmState::Zooming => actions!(NavigateToolMessageDiscriminant;
PointerMove,
),
NavigateToolFsmState::ZoomOrClickZooming => actions!(NavigateToolMessageDiscriminant;
PointerUp,
PointerMove,
),
}
}
}
impl ToolTransition for NavigateTool {
fn event_to_message_map(&self) -> EventToMessageMap {
EventToMessageMap {
tool_abort: Some(NavigateToolMessage::Abort.into()),
..Default::default()
}
}
}
#[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
enum NavigateToolFsmState {
#[default]
Ready,
Tilting,
ZoomOrClickZooming,
Zooming,
}
#[derive(Clone, Debug, Default)]
struct NavigateToolData {
drag_start: Option<DVec2>,
}
impl Fsm for NavigateToolFsmState {
type ToolData = NavigateToolData;
type ToolOptions = ();
fn transition(
self,
message: ToolMessage,
tool_data: &mut Self::ToolData,
ToolActionHandlerData { input, .. }: &mut ToolActionHandlerData,
_tool_options: &Self::ToolOptions,
responses: &mut VecDeque<Message>,
) -> Self {
let ToolMessage::Navigate(navigate) = message else { return self };
match navigate {
NavigateToolMessage::PointerUp { zoom_in } => {
if self == NavigateToolFsmState::ZoomOrClickZooming {
// Mouse has not moved from pointerdown to pointerup
if tool_data.drag_start == Some(input.mouse.position) {
responses.add_front(if zoom_in {
NavigationMessage::CanvasZoomIncrease { center_on_mouse: true }
} else {
NavigationMessage::CanvasZoomDecrease { center_on_mouse: true }
});
}
} else {
responses.add_front(NavigationMessage::EndCanvasPTZ { abort_transform: false });
}
tool_data.drag_start = None;
NavigateToolFsmState::Ready
}
NavigateToolMessage::PointerMove { snap } => {
if self == NavigateToolFsmState::ZoomOrClickZooming {
responses.add_front(NavigationMessage::BeginCanvasZoom);
NavigateToolFsmState::Zooming
} else {
responses.add_front(NavigationMessage::PointerMove { snap });
self
}
}
NavigateToolMessage::TiltCanvasBegin => {
responses.add_front(NavigationMessage::BeginCanvasTilt { was_dispatched_from_menu: false });
NavigateToolFsmState::Tilting
}
NavigateToolMessage::ZoomCanvasBegin => {
// Wait to decide between zooming and click zooming based on whether the next event is a PointerMove or PointerUp
tool_data.drag_start = Some(input.mouse.position);
NavigateToolFsmState::ZoomOrClickZooming
}
NavigateToolMessage::End => {
tool_data.drag_start = None;
NavigateToolFsmState::Ready
}
NavigateToolMessage::Abort => {
responses.add_front(NavigationMessage::EndCanvasPTZ { abort_transform: false });
tool_data.drag_start = None;
NavigateToolFsmState::Ready
}
}
}
fn update_hints(&self, responses: &mut VecDeque<Message>) {
let hint_data = match self {
NavigateToolFsmState::Ready | NavigateToolFsmState::ZoomOrClickZooming => HintData(vec![
HintGroup(vec![
HintInfo::mouse(MouseMotion::MmbDrag, ""),
HintInfo::keys_and_mouse([Key::Space], MouseMotion::LmbDrag, "Pan").prepend_slash(),
]),
HintGroup(vec![HintInfo::keys_and_mouse([Key::Alt], MouseMotion::LmbDrag, "Tilt")]),
HintGroup(vec![HintInfo::mouse(MouseMotion::LmbDrag, "Zoom"), HintInfo::keys([Key::Shift], "Increments").prepend_plus()]),
HintGroup(vec![HintInfo::mouse(MouseMotion::Lmb, "Zoom In"), HintInfo::keys([Key::Shift], "Zoom Out").prepend_plus()]),
]),
NavigateToolFsmState::Tilting => HintData(vec![
HintGroup(vec![HintInfo::mouse(MouseMotion::Rmb, ""), HintInfo::keys([Key::Escape], "Cancel").prepend_slash()]),
HintGroup(vec![HintInfo::keys([Key::Shift], "15° Increments")]),
]),
NavigateToolFsmState::Zooming => HintData(vec![
HintGroup(vec![HintInfo::mouse(MouseMotion::Rmb, ""), HintInfo::keys([Key::Escape], "Cancel").prepend_slash()]),
HintGroup(vec![HintInfo::keys([Key::Shift], "Increments")]),
]),
};
responses.add(FrontendMessage::UpdateInputHints { hint_data });
}
fn update_cursor(&self, responses: &mut VecDeque<Message>) {
let cursor = match *self {
NavigateToolFsmState::Ready => MouseCursorIcon::ZoomIn,
NavigateToolFsmState::Tilting => MouseCursorIcon::Default,
NavigateToolFsmState::Zooming | NavigateToolFsmState::ZoomOrClickZooming => MouseCursorIcon::ZoomIn,
};
responses.add(FrontendMessage::UpdateMouseCursor { cursor });
}
}
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