Method PostLoad

Engine/Editor/Source/UI/Tools/NodeGraph/EdNodeGraph.cpp:80–138

    CEdNodeGraph::~CEdNodeGraph()
    {
    }

    bool CEdNodeGraph::GraphSaveSettings(const char* data, size_t size, ax::NodeEditor::SaveReasonFlags Reason, void* userPointer)
    {
        CEdNodeGraph* ThisGraph = (CEdNodeGraph*)userPointer;
        
        if (    Reason == ax::NodeEditor::SaveReasonFlags::None 
            ||  Reason == ax::NodeEditor::SaveReasonFlags::Navigation
            ||  Reason == ax::NodeEditor::SaveReasonFlags::Selection
            ||  ThisGraph->bFirstDraw)
        {
            return true;
        }

        // The graph is un-changed.
        if (ThisGraph->GraphSaveData.size() == size && (size == 0 || Memory::Memcmp(ThisGraph->GraphSaveData.data(), data, size) == 0))
        {
            return true;
        }

        ThisGraph->GraphSaveData.assign(data, size);
        ThisGraph->GetPackage()->MarkDirty();

        return true;
    }
    
    size_t CEdNodeGraph::GraphLoadSettings(char* Data, void* UserPointer)
    {
        CEdNodeGraph* ThisGraph = (CEdNodeGraph*)UserPointer;
        if (Data)
        {
            Memory::Memcpy(Data, ThisGraph->GraphSaveData.data(), ThisGraph->GraphSaveData.size());
        }
        return ThisGraph->GraphSaveData.size();
    }
    

    void CEdNodeGraph::Initialize()
    {
        ax::NodeEditor::Config Config;
        Config.EnableSmoothZoom = true;
        Config.UserPointer = this;
        Config.SaveSettings = GraphSaveSettings;
        Config.LoadSettings = GraphLoadSettings;
        Config.SettingsFile = nullptr;
        Context = ax::NodeEditor::CreateEditor(&Config);
    }

    void CEdNodeGraph::Shutdown()
    {
        // Otherwise closing the editor you copied from leaves a paste pointing at freed nodes.
        for (const TObjectPtr<CEdGraphNode>& Node : Nodes)
        {
            if (Node.IsValid())
            {
                ForgetClipboardNode(Node.Get());
            }
        }