def __init__(self, ui: UserInterface.UserInterface, text: str) -> None:
column_widget = ui.create_column_widget()
super().__init__(column_widget)
self.on_button_clicked: typing.Optional[typing.Callable[[],
None]] = None
font = "normal 11px serif"
font_metrics = ui.get_font_metrics(font, text)
text_button_canvas_item = TextButtonCanvasItem(text)
text_button_canvas_item.update_sizing(
text_button_canvas_item.sizing.with_fixed_size(
Geometry.IntSize(height=font_metrics.height + 6,
width=font_metrics.width + 6)))
def button_clicked() -> None:
if callable(self.on_button_clicked):
self.on_button_clicked()
text_button_canvas_item.on_button_clicked = button_clicked
text_button_canvas_widget = ui.create_canvas_widget(properties={
"height": 20,
"width": 20
})
text_button_canvas_widget.canvas_item.add_canvas_item(
text_button_canvas_item)
# ugh. this is a partially working stop-gap when a canvas item is in a widget it will not get mouse exited reliably
root_container = text_button_canvas_item.root_container
if root_container:
text_button_canvas_widget.on_mouse_exited = root_container.canvas_widget.on_mouse_exited
column_widget.add(text_button_canvas_widget)
def construct(self, d_type: str, ui: UserInterface.UserInterface, window: typing.Optional[Window.Window],
d: Declarative.UIDescription, handler: Declarative.HandlerLike,
finishes: typing.List[typing.Callable[[], None]]) -> typing.Optional[UserInterface.Widget]:
if d_type == "notification_char_button":
font = "normal 13px serif"
text = d["text"]
fm = ui.get_font_metrics(font, text)
canvas_item = CharButtonCanvasItem(text)
widget = ui.create_canvas_widget(properties={"height": fm.height + 4, "width": fm.width + 4})
widget.canvas_item.add_canvas_item(canvas_item)
if handler:
Declarative.connect_name(widget, d, handler)
Declarative.connect_attributes(widget, d, handler, finishes)
Declarative.connect_event(widget, canvas_item, d, handler, "on_clicked", [])
return widget
return None