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Fix: refresh properly when finishing a selection

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Isaiah Odhner 2023-04-21 18:33:34 -04:00
parent c5c9bd9425
commit 612bc3d204
1 changed files with 9 additions and 0 deletions
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9
paint.py
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@ -1895,17 +1895,26 @@ class PaintApp(App):
def on_canvas_tool_stop(self, event: Canvas.ToolStop) -> None: def on_canvas_tool_stop(self, event: Canvas.ToolStop) -> None:
"""Called when releasing the mouse button after drawing/dragging on the canvas.""" """Called when releasing the mouse button after drawing/dragging on the canvas."""
# Clear the selection preview.
# This helps to highlight a bug where the mouse up position can be significantly different from the mouse move position,
# I think due to coordinates being calculated differently during mouse capture.
# However, it's good to handle this case anyway since the mouse MAY have moved.
# (Or at least, I don't know of any guarantee that it won't.)
self.cancel_preview()
if self.selection_drag_offset: if self.selection_drag_offset:
# Done dragging selection # Done dragging selection
self.selection_drag_offset = None self.selection_drag_offset = None
return return
if self.selected_tool == Tool.select and self.mouse_at_start: if self.selected_tool == Tool.select and self.mouse_at_start:
# Finish making a selection
select_region = self.get_select_region(self.mouse_at_start, event.mouse_up_event.offset) select_region = self.get_select_region(self.mouse_at_start, event.mouse_up_event.offset)
if self.image.selection: if self.image.selection:
# This shouldn't happen, because it should meld # This shouldn't happen, because it should meld
# the selection on mouse down. # the selection on mouse down.
self.meld_selection() self.meld_selection()
self.image.selection = Selection(select_region) self.image.selection = Selection(select_region)
self.canvas.refresh_scaled_region(select_region)
self.mouse_at_start = None self.mouse_at_start = None
def on_key(self, event: events.Key) -> None: def on_key(self, event: events.Key) -> None: