cImagePNG.h

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//
 
#ifndef _INC_cImagePNG_H
#define _INC_cImagePNG_H
#if _MSC_VER >= 1000
#pragma once
#endif // _MSC_VER >= 1000
 
#include "GrayCodec.h"
 
#ifdef USE_PNG
 
#include "GrayLib/include/Image/cImageBase.h"
#include "GrayLib/include/Windows/cWndBitmap.h"
#include "GrayLib/include/WinAPI/cWinResource.h"
#include "GrayCore/include/cFilePath.h"
 
// lib png.lib
namespace GrayCodec
{
        UNITTEST2_PREDEF(cImagePNG);
 
        class GRAYCODEC_LINK cImagePNG
                : public cImageBase
                , public cSurfaceFrames
        {
                typedef cImageBase SUPER_t;
 
        private:
                cHeapBlock m_Pixels;    
 
        public:
                cImagePNG() noexcept;
                virtual ~cImagePNG();
 
                virtual HRESULT SetFrameCurrent(int iFrameNum) override;
                virtual void SetEmpty() override;
                virtual HRESULT ReadStream(cStreamInput& stmIn) override;
                virtual HRESULT WriteStream(cStreamOutput* pFile) const override;
 
                UNITTEST_FRIEND(cImagePNG);
        };
 
        class GRAYCODEC_LINK cImagePNGType
                : public IImageCreator
                , public cSingleton<cImagePNGType>
        {
        public:
                cImagePNGType()
                        : cSingleton<cImagePNGType>(this, typeid(cImagePNGType))
                {
                }
                virtual bool IsFileExt(const FILECHAR_t* pszFileExt) const
                {
                        return cFilePath::IsFileNameExt(pszFileExt, _FN(".png"));
                }
                virtual cImageBasePtr CreateObject() const override
                {
                        return new cImagePNG;
                }
        };
};
#endif // _INC_cImagePNG_H
#endif