qgraphtree.py 文件源码

def __init__(self, vg, nodes, parent=None):
        QtWidgets.QGraphicsView.__init__(self, parent=parent)
        scene = QtWidgets.QGraphicsScene(parent=self)

        self.setScene(scene)
        self._v_nodecol = NodeColumn(vg, nodes, scene)
        self._v_vg = vg