def _on_wheel(self, evt: wx.MouseEvent):
"""Add scroll wheel behaviour to the input."""
rotation = evt.GetWheelRotation()
ctrl = evt.GetEventObject()
if rotation > 0:
ctrl.SetValue(ctrl.GetValue() + ctrl.GetIncrement())
self._changed(ctrl)
elif rotation < 0:
ctrl.SetValue(ctrl.GetValue() - ctrl.GetIncrement())
self._changed(ctrl)
def OnMouseWheel(self, event: wx.MouseEvent):
if self.selection_mode:
return
self.camera_interactor.mouse_wheel(event.GetWheelRotation(),
event.GetWheelDelta(),
event.ShiftDown(), event.AltDown(),
event.ControlDown())
self._x = self._y = -1
self.Sync()
self.Refresh()