Class ColorNodeEditor

example/color_node_editor.cpp:123–696

}

class ColorNodeEditor
{
public:
    ColorNodeEditor() : graph_(), nodes_(), root_node_id_(-1),
        minimap_location_(ImNodesMiniMapLocation_BottomRight) {}

    void show()
    {
        // Update timer context
        current_time_seconds = 0.001f * SDL_GetTicks();

        auto flags = ImGuiWindowFlags_MenuBar;

        // The node editor window
        ImGui::Begin("color node editor", NULL, flags);

        if (ImGui::BeginMenuBar())
        {
            if (ImGui::BeginMenu("Mini-map"))
            {
                const char* names[] = {
                    "Top Left",
                    "Top Right",
                    "Bottom Left",
                    "Bottom Right",
                };
                int locations[] = {
                    ImNodesMiniMapLocation_TopLeft,
                    ImNodesMiniMapLocation_TopRight,
                    ImNodesMiniMapLocation_BottomLeft,
                    ImNodesMiniMapLocation_BottomRight,
                };

                for (int i = 0; i < 4; i++)
                {
                    bool selected = minimap_location_ == locations[i];
                    if (ImGui::MenuItem(names[i], NULL, &selected))
                        minimap_location_ = locations[i];
                }
                ImGui::EndMenu();
            }

            if (ImGui::BeginMenu("Style"))
            {
                if (ImGui::MenuItem("Classic"))
                {
                    ImGui::StyleColorsClassic();
                    ImNodes::StyleColorsClassic();
                }
                if (ImGui::MenuItem("Dark"))
                {
                    ImGui::StyleColorsDark();
                    ImNodes::StyleColorsDark();
                }
                if (ImGui::MenuItem("Light"))
                {
                    ImGui::StyleColorsLight();
                    ImNodes::StyleColorsLight();