simple-example.cpp

# include <imgui.h>
# include <imgui_node_editor.h>
# include <application.h>

namespace ed = ax::NodeEditor;

struct Example:
    public Application
{
    using Application::Application;

    void OnStart() override
    {
        ed::Config config;
        config.SettingsFile = "Simple.json";
        m_Context = ed::CreateEditor(&config);
    }

    void OnStop() override
    {
        ed::DestroyEditor(m_Context);
    }

    void OnFrame(float deltaTime) override
    {
        auto& io = ImGui::GetIO();

        ImGui::Text("FPS: %.2f (%.2gms)", io.Framerate, io.Framerate ? 1000.0f / io.Framerate : 0.0f);

        ImGui::Separator();

        ed::SetCurrentEditor(m_Context);
        ed::Begin("My Editor", ImVec2(0.0, 0.0f));
        int uniqueId = 1;
        // Start drawing nodes.
        ed::BeginNode(uniqueId++);
            ImGui::Text("Node A");
            ed::BeginPin(uniqueId++, ed::PinKind::Input);
                ImGui::Text("-> In");
            ed::EndPin();
            ImGui::SameLine();
            ed::BeginPin(uniqueId++, ed::PinKind::Output);
                ImGui::Text("Out ->");
            ed::EndPin();
        ed::EndNode();
        ed::End();
        ed::SetCurrentEditor(nullptr);

	    //ImGui::ShowMetricsWindow();
    }

    ed::EditorContext* m_Context = nullptr;
};

int Main(int argc, char** argv)
{
    Example exampe("Simple", argc, argv);

    if (exampe.Create())
        return exampe.Run();

    return 0;
}