main.py 文件源码

def keyPressEvent(self, event):
        """Qt callback for key presses.

        This overrides the `QMainWindow` method. It does not need to be called
        directly and it doesn't need to be overriden. Connect to the
        :meth:`key_pressed` transmitter to handle key press events.
        """
        try:
            key = key_map[event.key()]
        except KeyError:
            return super().keyPressEvent(event)

        self.key_pressed(key)