pyqtplayer.py 文件源码

def __init__(self, playbin, parent):
        super().__init__(parent)
        self._playbin = playbin
        self._state = self.STATE_IDLE
        self._started = None
        self._updater = None
        self._slider = QtWidgets.QSlider(QtCore.Qt.Horizontal)
        self._elapsed = QtWidgets.QLabel('00:00:00')
        self._remaining = QtWidgets.QLabel('00:00:00')
        self._slider.setMinimum(0)

        layout = QtWidgets.QHBoxLayout()
        layout.setContentsMargins(2, 2, 2, 2)
        layout.addWidget(self._elapsed)
        layout.addWidget(self._slider, stretch=1)
        layout.addWidget(self._remaining)
        self.setLayout(layout)

        self._slider.sliderPressed.connect(self._startDragging)
        self._slider.sliderMoved.connect(self._drag)
        self._slider.sliderReleased.connect(self._stopDragging)

        self._updater = asyncio.get_event_loop().create_task(self._poll())