def __init__(self):
MTwoStateShape.__init__(self)
self.max_height = 20
self.max_width = 20
self.width = self.max_width
self.height = self.max_height
self.setFixedSize(self.width, self.height)
self.__border = CheckboxBorder()
self.__area = CheckboxArea()
self.add_layout_item(self.__border, 0, 0)
self.add_layout_item(self.__area, 0, 0)
self.setLayout(self.layout)
self.checked = False
