void ContextCallback(object obj)
{
switch (obj.ToString())
{
case "0":
PopupWindow.InitNodePopUp();
break;
case "1":
NodeUtils.LoadGraph();
break;
case "2":
NodeUtils.UnloadGraph();
break;
case "3":
NodeUtils.CreateNode(currentGraph, NodeType.FLOAT, mousePosition);
break;
case "4":
NodeUtils.CreateNode(currentGraph, NodeType.ADD, mousePosition);
break;
case "5":
NodeUtils.DeleteNode(deleteNodeID, currentGraph);
break;
default:
break;
}
}