Class App

projects/WinDurango.Testing/App.cpp:16–152

using namespace Windows::UI::Composition;

struct App : implements<App, IFrameworkViewSource, IFrameworkView>
{
    CompositionTarget m_target{nullptr};
    VisualCollection m_visuals{nullptr};
    Visual m_selected{nullptr};
    float2 m_offset{};
    bool runFirst = true;
    wd::common::Logging logthing;

    IFrameworkView CreateView()
    {
        return *this;
    }

    void Initialize(CoreApplicationView const &)
    {
    }

    void Load(hstring const &)
    {
    }

    void Uninitialize()
    {
    }

    void Run()
    {
        CoreWindow window = CoreWindow::GetForCurrentThread();
        window.Activate();

        CoreDispatcher dispatcher = window.Dispatcher();
        dispatcher.ProcessEvents(CoreProcessEventsOption::ProcessUntilQuit);
    }

    void SetWindow(CoreWindow const &window)
    {
        Compositor compositor;
        ContainerVisual root = compositor.CreateContainerVisual();
        m_target = compositor.CreateTargetForCurrentView();
        m_target.Root(root);
        m_visuals = root.Children();

        window.PointerPressed({this, &App::OnPointerPressed});
        window.PointerMoved({this, &App::OnPointerMoved});

        window.PointerReleased([&](auto &&...) { m_selected = nullptr; });
    }

    void OnPointerPressed(IInspectable const &, PointerEventArgs const &args)
    {
        float2 const point = args.CurrentPoint().Position();

        for (Visual visual : m_visuals)
        {
            float3 const offset = visual.Offset();
            float2 const size = visual.Size();