MRSplashWindow.h

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#pragma once
 
#include "MRViewerFwd.h"
#include <string>
#include <functional>
#include <atomic>
#include <thread>
#include <memory>
 
struct GLFWwindow;
struct ImGuiContext;
 
namespace MR
{
 

class MRVIEWER_CLASS SplashWindow
{
public:
    MRVIEWER_API SplashWindow( std::string name );

    MRVIEWER_API virtual ~SplashWindow();

    MRVIEWER_API void start();

    MRVIEWER_API void stop();

    virtual float minimumTimeSec() const { return 2.f; }
 
protected:
    std::string name_;
 
    GLFWwindow* window_{ nullptr };
    ImGuiContext* guiContext_{ nullptr };
 
    std::atomic<bool> terminate_{ false };
private:
    virtual void afterStart_() {}
    virtual void beforeStop_() {}

    virtual void setup_() const = 0;
    virtual void postInit_() {}
    virtual void positioning_( float hdpiScale ) = 0;
    virtual void reloadFont_( float hdpiScale, float pixelRatio ) = 0;
    virtual bool frame_( float scaling ) = 0;
    virtual void preDestruct_() {}
    virtual void postDestruct_() {}
 
    std::thread thread_;
};
 
#ifndef __EMSCRIPTEN__
class MRVIEWER_CLASS DefaultSplashWindow final : public SplashWindow
{
public:
    MRVIEWER_API DefaultSplashWindow();
private:
    virtual void setup_() const override;
    virtual void postInit_() override;
    virtual void positioning_( float hdpiScale ) override;
    virtual void reloadFont_( float hdpiScale, float pixelRatio ) override;
    virtual bool frame_( float scaling ) override;
    virtual void preDestruct_() override;
 
    std::shared_ptr<ImGuiImage> splashImage_;
    std::string versionStr_;
};
#endif
}