D:/opendownloadmanager/ODM-1.x/vmsAnimatedGIF.h

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/*
  Free Download Manager Copyright (c) 2003-2007 FreeDownloadManager.ORG
  Open Download Manager Copyright (c) 2008-2010 OpenDownloadManager.ORG
*/    

#if !defined(AFX_VMSANIMATEDGIF_H__8893A64A_E91C_4E1D_8F5E_768AE18C7CB8__INCLUDED_)
#define AFX_VMSANIMATEDGIF_H__8893A64A_E91C_4E1D_8F5E_768AE18C7CB8__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif 

#pragma warning (push, 1)
#include <vector>
#pragma warning (pop)

class vmsAnimatedGIF  
{
public:
struct TFrame    
{
        SIZE     m_frameSize;
        SIZE     m_frameOffset;
        UINT     m_nDelay;     
        UINT     m_nDisposal;  
};

        TFrame* get_FrameInfo (int iIndex);

        int SaveGIFFrames (LPCSTR pszFileTemplate);

#pragma pack(1)   

enum GIFBlockTypes
{
        BLOCK_UNKNOWN,
        BLOCK_APPEXT,
        BLOCK_COMMEXT,
        BLOCK_CONTROLEXT,
        BLOCK_PLAINTEXT,
        BLOCK_IMAGE,
        BLOCK_TRAILER
};

enum ControlExtValues 
{
        GCX_PACKED_DISPOSAL,  
        GCX_PACKED_USERINPUT,
        GCX_PACKED_TRANSPCOLOR
};

enum LSDPackedValues  
{
        LSD_PACKED_GLOBALCT,
        LSD_PACKED_CRESOLUTION,
        LSD_PACKED_SORT,
        LSD_PACKED_GLOBALCTSIZE
};

enum IDPackedValues   
{
        ID_PACKED_LOCALCT,
        ID_PACKED_INTERLACE,
        ID_PACKED_SORT,
        ID_PACKED_LOCALCTSIZE
};

struct TGIFHeader       
{
        char m_cSignature[3]; 
                                                  
        char m_cVersion[3];                                                     
};

struct TGIFLSDescriptor 
{
        WORD m_wWidth;  
        WORD m_wHeight; 

        unsigned char m_cPacked;      

        unsigned char m_cBkIndex;     
        unsigned char m_cPixelAspect; 
        inline int GetPackedValue(enum LSDPackedValues Value);
};

struct TGIFAppExtension 
{
        unsigned char m_cExtIntroducer; 
        unsigned char m_cExtLabel; 
        unsigned char m_cBlockSize; 
        char m_cAppIdentifier[8];   
        char m_cAppAuth[3];  
};

struct TGIFControlExt 
{
        unsigned char m_cExtIntroducer; 
        unsigned char m_cControlLabel;  
        unsigned char m_cBlockSize; 
        unsigned char m_cPacked;    
        WORD m_wDelayTime;      
        unsigned char m_cTColorIndex; 
        unsigned char m_cBlockTerm;   
public:
        inline int GetPackedValue(enum ControlExtValues Value);
};

struct TGIFCommentExt  
{
        unsigned char m_cExtIntroducer; 
        unsigned char m_cCommentLabel;  
};

struct TGIFPlainTextExt 
{
        unsigned char m_cExtIntroducer;  
        unsigned char m_cPlainTextLabel; 
        unsigned char m_cBlockSize; 
        WORD m_wLeftPos;    
        WORD m_wTopPos;     
        WORD m_wGridWidth;  
        WORD m_wGridHeight; 
        unsigned char m_cCellWidth;  
        unsigned char m_cCellHeight; 
        unsigned char m_cFgColor; 
        unsigned char m_cBkColor; 
};

struct TGIFImageDescriptor 
{
        unsigned char m_cImageSeparator; 
        WORD m_wLeftPos; 
        WORD m_wTopPos;  
        WORD m_wWidth;   
        WORD m_wHeight;  
        unsigned char m_cPacked; 
        inline int GetPackedValue(enum IDPackedValues Value);
};

#pragma pack() 

        BOOL Load (LPCSTR pszFile);
        
        BOOL Load(HGLOBAL hGlobal, DWORD dwSize);

        vmsAnimatedGIF();
        virtual ~vmsAnimatedGIF();

protected:
        
        std::vector <TFrame> m_vFramesInfo;
        
        BOOL WriteDataOnDisk (LPCSTR pszFile, HGLOBAL hData, DWORD dwSize);
        
        BOOL Load();
        HGLOBAL m_hGIF; 
        
        BOOL m_bAutoFree;
        
        HGLOBAL GetNextGraphicBlock (UINT *pBlockLen, UINT *pDelay, SIZE *pBlockSize, SIZE *pBlockOffset, UINT *pDisposal);
        UINT GetSubBlocksLen (UINT nStartingOffset);
        int GetNextBlockLen();
        BOOL SkipNextBlock();
        GIFBlockTypes GetNextBlock();
        BOOL SkipNextGraphicBlock();
        void ResetDataPointer();
        void Free();
        LPBYTE  m_pRawData;     
        TGIFHeader* m_pGIFHeader;
        TGIFLSDescriptor* m_pGIFLSDescriptor;
        SIZE m_PictureSize;
        COLORREF m_clrBackground;
        UINT m_nDataSize;
        UINT m_nCurrOffset;
        UINT m_nGlobalCTSize;
};

#endif 

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