#ifndef _GIF_GIFDECODER_HPP_
#define _GIF_GIFDECODER_HPP_
#ifndef _COMMON_WINDOWS_HPP_
#include <common/windows.hpp>
#endif
#ifndef _LZWDECOMPRESSION_HPP_
#include <gif/lzw.hpp>
#endif

#ifdef _EXPAND_GIFDECODER_TEMPLATES_
#pragma option -Jgd
#endif

class GIFDecoder : public LZWDecompression
{
public:
  GIFDecoder(void);
	virtual ~GIFDecoder();
	WORD unpackImage(const char *pathFileName);
	virtual void paletteHandler(const UCHAR FAR *lpPaletteData,USHORT numColors);
	virtual void attributeHandler(USHORT imageWide,USHORT imageDeep,USHORT pixelSize);
	virtual void backgroundHandler(USHORT backgroundColor);
	virtual void imageHandler(void);
	virtual void showHandler(USHORT imageWide,USHORT imageDeep,const UCHAR FAR *lpRowData,USHORT yLocation);
	virtual void errorHandler(const char FAR *message);
private:
	void showHandler(UCHAR FAR *lpOutRow,USHORT yLocation);
	WORD processImage(void);
	WORD readPaletteData(void);

	HGLOBAL mhGlobalPalette;
	UCHAR FAR *mlpPaletteData;
	USHORT mScreenWidth;
	USHORT mScreenHeight;
	UCHAR mGlobalFlagByte;
	USHORT mColors;
	USHORT mBackgroundColor;
	USHORT mImageStartLeft;
	USHORT mImageStartTop;
	USHORT mImageWide;
	USHORT mImageDeep;
	USHORT mIsInterlaced;
	USHORT mBufferCount;
	USHORT mPixelSize;
};
#endif