def loadFromJson(self):
if (os.stat("database.txt").st_size == 0):
return
with open('database.txt') as json_file:
graph = json.load(json_file)
for p in graph['nodes']:
circle = QGraphicsEllipseItem(-20, -20, 40, 40)
circle.setFlag(QGraphicsItem.ItemIsMovable)
circle.name = p["name"]
circle.setPos(float(p["x"]), float(p["y"]))
circle.setToolTip(circle.name)
self.nodesMap.append(circle)
