mpl_base.py 文件源码

def process_change_selection(self):
        self._selected = not self._selected
        if self._selected:
            self.create_selection()
            self.refresh_selection()
            self.Bind(wx.EVT_PAINT, self.on_paint_selection)
        else:
            self.Unbind(wx.EVT_PAINT, handler=self.on_paint_selection)
            self.destroy_selection()