timeline_widget.py 文件源码

def __init__(self, stack, *args, **kwargs):
        super(CompositionView, self).__init__(*args, **kwargs)
        self.setResizeAnchor(QtGui.QGraphicsView.AnchorUnderMouse)
        self.setTransformationAnchor(QtGui.QGraphicsView.AnchorUnderMouse)
        self.setScene(CompositionWidget(stack, parent=self))
        self.setAlignment((QtCore.Qt.AlignLeft | QtCore.Qt.AlignTop))

        self.scene().selectionChanged.connect(self.parse_selection_change)