protected override void Initialize(BaseGraphView graphView)
        {
            title = string.Empty;

            this.graphView = graphView as GameFlowGraphView;

            AddButton(ReloadAction, ReloadText, ReloadGraphView);
            AddButton(SaveAction, SaveText, ReloadGraphView);
            AddButton(NodesAction, NodesText, ShowNodesWindow);
        }
        protected override void InitializeWindow(BaseGraph inputGraph)
        {
            if (!ActiveGraph)
            {
                return;
            }

            titleContent  = new GUIContent(ActiveGraph.name);
            _uniGraphView = new GameFlowGraphView(this);

            rootView.Add(_uniGraphView);

            CreateToolbar(_uniGraphView);
        }