XCEngine/new_editor/app/Application.h

#pragma once

#ifndef NOMINMAX
#define NOMINMAX
#endif

#include <Host/AutoScreenshot.h>
#include <Host/D3D12WindowRenderer.h>
#include <Host/InputModifierTracker.h>
#include <Host/NativeRenderer.h>

#include "Core/ProductEditorContext.h"
#include "Workspace/ProductEditorWorkspace.h"

#include <XCEditor/Shell/UIEditorShellInteraction.h>

#include <windows.h>
#include <windowsx.h>

#include <cstdint>
#include <filesystem>
#include <string>
#include <string_view>
#include <vector>

namespace XCEngine::UI::Editor {

class Application {
public:
    Application() = default;

    int Run(HINSTANCE hInstance, int nCmdShow);

private:
    static LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam);

    bool Initialize(HINSTANCE hInstance, int nCmdShow);
    void Shutdown();
    void RenderFrame();
    void OnResize();
    void OnEnterSizeMove();
    void OnExitSizeMove();
    void OnDpiChanged(UINT dpi, const RECT& suggestedRect);
    void QueueWindowResize(UINT width, UINT height);
    void QueueCurrentClientResize();
    bool ApplyPendingWindowResize();
    void RequestDeferredRenderFrame();
    bool QueryCurrentClientPixelSize(UINT& outWidth, UINT& outHeight) const;
    bool IsPointerInsideClientArea() const;
    bool ApplyCurrentCursor() const;
    LPCWSTR ResolveCurrentCursorResource() const;
    float GetDpiScale() const;
    float PixelsToDips(float pixels) const;
    ::XCEngine::UI::UIPoint ConvertClientPixelsToDips(LONG x, LONG y) const;
    std::string BuildCaptureStatusText() const;
    void LogRuntimeTrace(std::string_view channel, std::string_view message) const;
    void ApplyHostCaptureRequests(const UIEditorShellInteractionResult& result);
    void ApplyHostedContentCaptureRequests();
    bool HasInteractiveCaptureState() const;
    std::string DescribeInputEvents(
        const std::vector<::XCEngine::UI::UIInputEvent>& events) const;
    void QueuePointerEvent(
        ::XCEngine::UI::UIInputEventType type,
        ::XCEngine::UI::UIPointerButton button,
        WPARAM wParam,
        LPARAM lParam);
    void QueuePointerLeaveEvent();
    void QueuePointerWheelEvent(short wheelDelta, WPARAM wParam, LPARAM lParam);
    void QueueKeyEvent(::XCEngine::UI::UIInputEventType type, WPARAM wParam, LPARAM lParam);
    void QueueCharacterEvent(WPARAM wParam, LPARAM lParam);
    void QueueWindowFocusEvent(::XCEngine::UI::UIInputEventType type);
    static std::filesystem::path ResolveRepoRootPath();
    static LONG WINAPI HandleUnhandledException(EXCEPTION_POINTERS* exceptionInfo);
    static bool IsVerboseRuntimeTraceEnabled();

    HWND m_hwnd = nullptr;
    HINSTANCE m_hInstance = nullptr;
    ATOM m_windowClassAtom = 0;
    ::XCEngine::UI::Editor::Host::NativeRenderer m_renderer = {};
    ::XCEngine::UI::Editor::Host::D3D12WindowRenderer m_windowRenderer = {};
    ::XCEngine::UI::Editor::Host::AutoScreenshotController m_autoScreenshot = {};
    ::XCEngine::UI::Editor::Host::InputModifierTracker m_inputModifierTracker = {};
    App::ProductEditorContext m_editorContext = {};
    App::ProductEditorWorkspace m_editorWorkspace = {};
    std::vector<::XCEngine::UI::UIInputEvent> m_pendingInputEvents = {};
    bool m_trackingMouseLeave = false;
    UINT m_windowDpi = 96u;
    float m_dpiScale = 1.0f;
    bool m_inInteractiveResize = false;
    bool m_renderFrameQueued = false;
    bool m_hasPendingWindowResize = false;
    UINT m_pendingWindowResizeWidth = 0u;
    UINT m_pendingWindowResizeHeight = 0u;
};

int RunXCUIEditorApp(HINSTANCE hInstance, int nCmdShow);

} // namespace XCEngine::UI::Editor