videoslider.py 文件源码

def __init__(self, parent=None):
        super(VideoSlider, self).__init__(parent)
        self.parent = parent
        self.logger = logging.getLogger(__name__)
        self.theme = self.parent.theme
        self._styles = '''
        QSlider:horizontal {{
            margin: 16px 8px 32px;
            height: {sliderHeight}px;
        }}
        QSlider::sub-page:horizontal {{
            border: none;
            background: {subpageBgColor};
            height: {subpageHeight}px;
            position: absolute;
            left: 0;
            right: 0;
            margin: 0;
            margin-left: {subpageLeftMargin}px;
        }}
        QSlider::add-page:horizontal {{
            border: none;
            background: transparent;
        }}
        QSlider::handle:horizontal {{
            border: none;
            border-radius: 0;
            background: transparent url(:images/{handleImage}) no-repeat top center;
            width: 15px;
            height: {handleHeight}px;
            margin: -12px -8px -20px;
        }}
        QSlider::handle:horizontal:hover {{
            background: transparent url(:images/{handleImageSelected}) no-repeat top center;
        }}'''
        self._progressbars = []
        self._regions = []
        self._regionHeight = 32
        self._regionSelected = -1
        self._cutStarted = False
        self._showSeekToolTip = True
        self._mouseOver = False
        self.showThumbs = True
        self.thumbnailsOn = False
        self.offset = 8
        self.setOrientation(Qt.Horizontal)
        self.setObjectName('videoslider')
        self.setCursor(Qt.PointingHandCursor)
        self.setStatusTip('Set clip start and end points')
        self.setFocusPolicy(Qt.StrongFocus)
        self.setRange(0, 0)
        self.setSingleStep(1)
        self.setTickInterval(100000)
        self.setTracking(True)
        self.setTickPosition(QSlider.TicksBelow)
        self.setFocus()
        self.restrictValue = 0
        self.valueChanged.connect(self.on_valueChanged)
        self.rangeChanged.connect(self.on_rangeChanged)
        self.installEventFilter(self)