UIRenderer.h

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/*
    MetaImGUI
    Copyright (C) 2026  A P Nicholson
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.
*/
 
#pragma once
 
#include <functional>
#include <memory>
#include <string>
 
// Forward declarations
struct GLFWwindow;
 
namespace MetaImGUI {
 
// Forward declarations
struct UpdateInfo;
class ISSTracker;
 
class UIRenderer {
public:
    UIRenderer();
    ~UIRenderer();
 
    // Disable copy and move
    UIRenderer(const UIRenderer&) = delete;
    UIRenderer& operator=(const UIRenderer&) = delete;
    UIRenderer(UIRenderer&&) = delete;
    UIRenderer& operator=(UIRenderer&&) = delete;
 
    bool Initialize(GLFWwindow* window);
 
    void Shutdown();
 
    void BeginFrame();
 
    void EndFrame();
 
    void RenderMainWindow(std::function<void()> onShowAbout, std::function<void()> onShowDemo,
                          std::function<void()> onShowInputDialog = nullptr);
 
    void RenderMenuBar(std::function<void()> onExit, std::function<void()> onToggleDemo,
                       std::function<void()> onCheckUpdates, std::function<void()> onShowAbout, bool showDemoWindow,
                       std::function<void()> onToggleISSTracker = nullptr, bool showISSTracker = false);
 
    void RenderStatusBar(const std::string& statusMessage, float fps, const char* version, bool updateInProgress);
 
    void RenderAboutWindow(bool& showAboutWindow);
 
    void RenderUpdateNotification(bool& showUpdateNotification, UpdateInfo* updateInfo);
 
    void ShowDemoWindow(bool& showDemoWindow);
 
    void RenderISSTrackerWindow(bool& showISSTracker, ISSTracker* issTracker);
 
    static void HelpMarker(const char* desc);
 
private:
    bool m_initialized = false;
};
 
} // namespace MetaImGUI