finishSelection method
void
finishSelection()
Finishes the current selection operation.
Clears the selection rectangle and resets tracking state. Should be called when the user releases the mouse button after drag-selecting nodes.
Implementation
void finishSelection() {
runInAction(() {
selectionStartPoint.value = null;
selectionRectangle.value = null;
_previouslyIntersecting.clear();
});
}