www.pudn.com > Imaging.rar > Gif.h

// Gif.h: interface for the CGif class. 
// 
////////////////////////////////////////////////////////////////////// 
 
#if !defined(AFX_GIF_H__3F3EB142_198E_11D3_ABDA_0000E81A9AA8__INCLUDED_) 
#define AFX_GIF_H__3F3EB142_198E_11D3_ABDA_0000E81A9AA8__INCLUDED_ 
 
#if _MSC_VER > 1000 
#pragma once 
#endif // _MSC_VER > 1000 
 
 
//-----------start define 
#define WIDTHBYTES(bits)    (((bits) + 31) / 32 * 4) 
 
typedef unsigned char UCHAR; 
typedef UCHAR *   LPUSTR; 
typedef unsigned short USHORT; 
class GIFINFO 
{ 
public: 
	USHORT FileType;//89a or 87a  
	USHORT ColorType;//1,2,4,8,16,32,64,128,256 
	USHORT ColorMode;//1,2,3,4,5,6,7,8 
	USHORT Width; 
	USHORT Height; 
	USHORT FrameCount;//共有幾幅圖	//UINT           DataOffset[100];//小於FrameCount有效 ,包括補充區及數據區 
	UCHAR  InitPixelBits;//壓縮數據起始數據Bits位數 
}; 
 
class MYRGB 
{ 
public: 
	BYTE bRed; 
	BYTE bGreen; 
	BYTE bBlue; 
}; 
class BMPIMAGE 
{ 
public: 
	BMPIMAGE(); 
	virtual ~BMPIMAGE(); 
	short tColor; 
	USHORT DelayTime; 
	USHORT Left; 
	USHORT Top; 
	USHORT Width; 
	USHORT Height; 
	RGBQUAD		   Palette[256];	 
    LPUSTR         pImageData; 
	BOOL   SaveMode;//1 = normal; 0 = 交叉 
}; 
//------------------------------------------------------				 
class GIFHEADER//GIF 文件頭 
{ 
public: 
	UCHAR Signature[6];//圖像格式，版本 
	USHORT ScreenWidth;//圖像寬度 
	USHORT ScreenDepth;//圖像高度 
	UCHAR GlobalFlagByte;//全局標記 a0 -- a7 有含意 
	UCHAR BackGroundColor;//背景色 
	UCHAR AspectRadio;//89a版的長寬比 
}; 
 
class IMAGEDATAINFO//圖像數據區識別信息 
{ 
public: 
	UCHAR ImageLabel;// default 0x2c 
	USHORT ImageLeft;  
	USHORT  ImageTop; 
	USHORT  ImageWidth; 
	USHORT  ImageHeight; 
	UCHAR  LocalFlagByte;  
}; 
 
class LZWTABLE 
{ 
public: 
	USHORT Header; 
	USHORT Tail; 
	USHORT Code;  
}; 
 
 
//below only for 89a 
class GRAPHCTRL 
{ 
public: 
	UCHAR ExtIntr;// 0x21	 
	UCHAR Label;//0xF9 
	UCHAR BlockSize;//0x04 
	UCHAR PackedField; 
	USHORT          DelayTime; 
	UCHAR TranColorIndex; 
	UCHAR blockTerminator;//0x00 
}; 
class NOTEHCTRL 
{ 
public: 
	UCHAR ExtIntr;// 0x21	 
	UCHAR Label;//0xFE 
	UCHAR Data[256];//變長最大256 
	UCHAR blockTerminator;//0x00 
}; 
class TEXTCTRL 
{ 
public:	 
	UCHAR ExtIntr;// 0x21	 
	UCHAR Label;//0x01 
	UCHAR BlockSize;//0x0c 
	USHORT          Left; 
	USHORT          Top; 
	USHORT          Width; 
	USHORT          Height;  
	UCHAR ForeColorIndex; 
	UCHAR BkColorIndex; 
	char		  Data[256];//變長最大256 
	UCHAR blockTerminator;//0x00 
}; 
class APPCTRL 
{ 
public: 
	UCHAR ExtIntr;// 0x21	 
	UCHAR Label;//0xFF 
	UCHAR BlockSize;//0x0b 
	UCHAR Identifier[8]; 
	UCHAR Authentication[3]; 
	UCHAR Data[256];//變長最大256 
	UCHAR blockTerminator;//0x00 
}; 
//----------------------------- 
 
class CGIF   
{ 
public: 
	BOOL GetImageInfo(RECT &Rect,COLORREF &tColor ,UINT ImageNo = 0); 
	BOOL ShowImage(HDC hDC,POINT StartPos,UINT ImageNo = 0); 
	BOOL LoadGIF(LPCTSTR GifFileName); 
	CGIF(); 
	virtual ~CGIF(); 
 
private: 
	BOOL ConvertToBmpImage(LPUSTR SrcData); 
	BOOL SaveBmp(LPCTSTR BmpFileName,LPUSTR pData); 
	UINT GetImage(LPUSTR pData); 
	UINT GetNoteContent(LPUSTR pNote); 
	UINT GetAppContent(LPUSTR pApp); 
	UINT ShowText(LPUSTR pText); 
	UINT GetGrphContent(LPUSTR pGrCtrl); 
	UINT AnalizeFileHeader(LPUSTR pFileContent); 
	//從字符串中任意字節的某個Bits開始取若干bits,並返回結果 
	USHORT GetOneCode(LPUSTR CodeStr ,UINT CodeStrLen, UINT OffsetChar , UINT OffsetBits, UINT Length); 
	//當某指針指向文件中壓縮數據前位置時,取得當前數據區中壓縮數據所佔字節數 
	UINT GetCodeCountOnChar (LPUSTR CodeStr ,UINT &AllDataLen); 
	//當某指針指向文件中壓縮數據前位置時,取得當前數據區中壓縮數據 
	LPUSTR GetCodeDataOnChar (LPUSTR CodeStr); 
	//把壓縮數據解於USHORT * 中, 
	LPUSTR GetCodeDataOnBits (LPUSTR CodeDataStr,UINT InitLen ,UINT &CodeDataLen); 
	//得到部份真實數據 
	void  GetPartImageDataFromTable(LPUSTR &pImage,LZWTABLE * Table,UINT TableLen); 
	//API end 
 
	 
	GIFINFO m_GifInfo; 
	LPUSTR   m_pDataArea; 
	LZWTABLE LZWTable[5200]; 
	 
	CPtrList m_ImageList; 
 
	RGBQUAD m_CurRgbQuad[256];//Bitmap pal; 
	short   m_CurTColorIndex; 
	USHORT  m_CurDelayTime; 
	BOOL    m_CurSaveMode; 
	USHORT  m_CurX,m_CurY,m_CurWidth,m_CurHeight; 
}; 
 
 
BOOL BitBltEx( 
  HDC hdcDest, // handle to destination device context 
  int nXDest,  // x-coordinate of destination rectangle's upper-left  
               // corner 
  int nYDest,  // y-coordinate of destination rectangle's upper-left  
               // corner 
  int nWidth,  // width of destination rectangle 
  int nHeight, // height of destination rectangle 
  HDC hdcSrc,  // handle to source device context 
  int nXSrc,   // x-coordinate of source rectangle's upper-left  
               // corner 
  int nYSrc,   // y-coordinate of source rectangle's upper-left  
  COLORREF cTransparentColor      // corner 
   // raster operation code 
); 
 
#endif // !defined(AFX_GIF_H__3F3EB142_198E_11D3_ABDA_0000E81A9AA8__INCLUDED_)