xdot.py 文件源码

def get_drag_action(self, event):
        state = event.state
        if event.button in (1, 2): # left or middle button
            if state & gtk.gdk.CONTROL_MASK:
                return ZoomAction
            elif state & gtk.gdk.SHIFT_MASK:
                return ZoomAreaAction
            else:
                return PanAction
        return NullAction