def viewportEvent(self, event: QEvent) -> bool:
if event.type() == QEvent.Wheel:
# delegate wheel events to parent StickyGraphicsView
parent = self.parent().parent().parent()
if isinstance(parent, StickyGraphicsView):
QCoreApplication.sendEvent(parent.viewport(), event)
if event.isAccepted():
return True
return super().viewportEvent(event)
def event(self, event: QEvent) -> bool:
if event.type() == QEvent.LayoutRequest:
self.__layout()
elif event.type() == QEvent.ContentsRectChange:
self.__layout()
elif event.type() == QEvent.GraphicsSceneHelp:
self.helpEvent(cast(QGraphicsSceneHelpEvent, event))
if event.isAccepted():
return True
return super().event(event)
def event(self, event: QEvent) -> bool:
# Reimplemented
if event.type() == QEvent.LayoutRequest and \
self.parentLayoutItem() is None:
self.__updateSizeConstraints()
self.resize(self.effectiveSizeHint(Qt.PreferredSize))
elif event.type() == QEvent.GraphicsSceneHelp:
self.helpEvent(cast(QGraphicsSceneHelpEvent, event))
if event.isAccepted():
return True
return super().event(event)
