widget_led.py 文件源码

def __init__(self, parent, colour='#000000'):
        QWidget.__init__(self, parent)
        self._colour = QColor(colour)

        self.setMinimumSize(20, 20)
        self.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed)

        self._lit = False
        self._timer = QTimer(self)
        self._timer.setInterval(200)
        self._timer.timeout.connect(self.__flash_off)