def wheelEvent(self, event: QtGui.QWheelEvent):
"""Implementation.
Handles zooming the editor's view.
"""
if (event.modifiers() & Qt.ControlModifier
and event.orientation() == Qt.Vertical):
if event.delta() > 0:
self.zoomIn()
else:
self.zoomOut()
# TODO: Improve cursor anchoring; be more like Aseprite
prevAnchor = self.transformationAnchor()
self.setTransformationAnchor(QGraphicsView.AnchorUnderMouse)
self.setTransform(QTransform.fromScale(self.zoom(), self.zoom()))
self.updateSceneRect(self.zoom())
self.setTransformationAnchor(prevAnchor)
event.accept()
elif event.orientation() == Qt.Horizontal:
# XXX: Workaround for the insane horizontal scroll delta of 15240 on the
# Logitech G502 mouse.
if abs(event.delta()) == 15240:
newDelta = 120 if event.delta() > 0 else -120
event = QtGui.QWheelEvent(event.pos(),
event.globalPos(),
newDelta,
event.buttons(),
event.modifiers(),
orient=Qt.Horizontal)
super().wheelEvent(event)
else:
super().wheelEvent(event)
def __cloneMouseWheelEvent(self, e: QWheelEvent):
pos = e.pos()
globalPos = e.globalPos()
pixelDelta = e.pixelDelta()
angleDelta = e.angleDelta()
buttons = e.buttons()
modifiers = e.modifiers()
phase = e.phase()
inverted = e.inverted()
clone = QWheelEvent(pos, globalPos, pixelDelta, angleDelta, buttons, modifiers, phase, inverted)
clone.ignore()
clone.accepted = False
return clone
