screen_select_widget.py 文件源码

def __init__(self, *args, **kwargs):
        super(ScreenSelectWidget, self).__init__(*args, **kwargs)

        self._active_screen = -1

        self._buttons = []


        layout = QVBoxLayout()
#        layout.addStretch(1)
        layout.addWidget(QLabel(self.tr("Lyrics screen")))
        layout.setContentsMargins(0, 0, 0, 0)
        self.setLayout(layout)

        self.refresh_widget()

        desktop = QApplication.desktop()
        desktop.screenCountChanged.connect(self.refresh_widget)
        # TODO : update to qt 5.6 and uncomment the next line
        # QApplication.instance().primaryScreenChanged.connect(self.refresh_widget)