class ToggleButton(Button):
    def __init__(self):
        Button.__init__(self)

        self.eventUp = None
        self.eventDown = None

        self.eventUpArgs = None
        self.eventDownArgs = None

    def __del__(self):
        Button.__del__(self)

        self.eventUp = None
        self.eventDown = None

    def SetToggleUpEvent(self, event, *args):
        self.eventUp = event
        self.eventUpArgs = args

    def SetToggleDownEvent(self, event, *args):
        self.eventDown = event
        self.eventDownArgs = args

    def RegisterWindow(self, layer):
        self.hWnd = wndMgr.RegisterToggleButton(self, layer)

    def OnToggleUp(self):
        if self.eventUp:
            if self.eventUpArgs:
                apply(self.eventUp, self.eventUpArgs)
            else:
                self.eventUp()

    def OnToggleDown(self):
        if self.eventDown:
            if self.eventDownArgs:
                apply(self.eventDown, self.eventDownArgs)
            else:
                self.eventDown()