videocutter.py 文件源码

def keyPressEvent(self, event: QKeyEvent) -> None:
        if self.mediaAvailable:

            if event.key() == Qt.Key_Space:
                self.playMedia()
                return

            if event.key() in {Qt.Key_F, Qt.Key_Escape}:
                self.mpvWidget.keyPressEvent(event)
                return

            if event.key() == Qt.Key_Home:
                self.setPosition(self.seekSlider.minimum())
                return

            if event.key() == Qt.Key_End:
                self.setPosition(self.seekSlider.maximum())
                return

            if event.key() == Qt.Key_Left:
                self.mpvWidget.frameBackStep()
                self.playAction.setVisible(True)
                self.pauseAction.setVisible(False)
                return

            if event.key() == Qt.Key_Down:
                if qApp.queryKeyboardModifiers() == Qt.ShiftModifier:
                    self.mpvWidget.seek(-self.level2Seek, 'relative+exact')
                else:
                    self.mpvWidget.seek(-self.level1Seek, 'relative+exact')
                return

            if event.key() == Qt.Key_Right:
                self.mpvWidget.frameStep()
                self.playAction.setVisible(True)
                self.pauseAction.setVisible(False)
                return

            if event.key() == Qt.Key_Up:
                if qApp.queryKeyboardModifiers() == Qt.ShiftModifier:
                    self.mpvWidget.seek(self.level2Seek, 'relative+exact')
                else:
                    self.mpvWidget.seek(self.level1Seek, 'relative+exact')
                return

            if event.key() in {Qt.Key_Return, Qt.Key_Enter} and \
                    (not self.timeCounter.hasFocus() and not self.frameCounter.hasFocus()):
                if self.cutStartAction.isEnabled():
                    self.clipStart()
                elif self.cutEndAction.isEnabled():
                    self.clipEnd()
                return