sheetview.py 文件源码

def __init__(self):
        self.scene = QGraphicsScene()
        super().__init__(self.scene)

        self.sheethandler = None    # Will be set externally

        self.setDragMode(QGraphicsView.RubberBandDrag)

        self.emptySheet = True  # Don't allow any modifications until a new sheet is created or loaded

        self.backgroundPixmap = QPixmap("resources/grid.jpg")
        self.bgBrush = QBrush(self.backgroundPixmap)
        self.scene.setBackgroundBrush(self.bgBrush)

        self.modman = ModuleManager()

        self.initnode = None
        self.loopnode = None

        #self.newSheet()
        #self.loadSheet(json.loads("""{"loopnode":"85a1abbd6d86462bbdad9639086b503e","85a1abbd6d86462bbdad9639086b503e":{"inputs":[],"nodename":"drluke.builtin.Loop","pos":[0,144],"outputs":[[]]},"52667c109d734f8883c74cf1a659b675":{"inputs":[],"nodename":"drluke.builtin.Init","pos":[0,0],"outputs":[[]]},"initnode":"52667c109d734f8883c74cf1a659b675"}"""))
        #self.loadRelationship(json.loads("""{"loopnode":"4e742e8ccb554213a9efe10431400637","c1e809fe45f340bfa1e68ed0a5429fb0":{"outputs":[[],[]],"pos":[431,108],"inputs":[[["dbb2a2812a4d42209e6b7aa635fca477",0]],[]],"nodename":"drluke.testmodule.TestNode"},"dbb2a2812a4d42209e6b7aa635fca477":{"outputs":[[["c1e809fe45f340bfa1e68ed0a5429fb0",0]],[]],"pos":[187,85],"inputs":[[["d7e6f0fe49fd4c598fdd4503bcffbd9c",0],["4e742e8ccb554213a9efe10431400637",0]],[]],"nodename":"drluke.testmodule.TestNode"},"d7e6f0fe49fd4c598fdd4503bcffbd9c":{"outputs":[[["dbb2a2812a4d42209e6b7aa635fca477",0]]],"pos":[0,0],"inputs":[],"nodename":"drluke.builtin.Init"},"4e742e8ccb554213a9efe10431400637":{"outputs":[[["dbb2a2812a4d42209e6b7aa635fca477",0]]],"pos":[0,200],"inputs":[],"nodename":"drluke.builtin.Loop"},"initnode":"d7e6f0fe49fd4c598fdd4503bcffbd9c"}"""))