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#ifndef _GIFLZWC_HXX
#define _GIFLZWC_HXX

#include <vcl/bmpacc.hxx>

// --------------------
// - GIFLZWCompressor -
// --------------------

class   GIFImageDataOutputStream;
struct  GIFLZWCTreeNode;

class GIFLZWCompressor
{
private:

    GIFImageDataOutputStream*   pIDOS;
    GIFLZWCTreeNode*            pTable;
    GIFLZWCTreeNode*            pPrefix;
    sal_uInt16                      nDataSize;
    sal_uInt16                      nClearCode;
    sal_uInt16                      nEOICode;
    sal_uInt16                      nTableSize;
    sal_uInt16                      nCodeSize;

public:

                                GIFLZWCompressor();
                                ~GIFLZWCompressor();

    void                        StartCompression( SvStream& rGIF, sal_uInt16 nPixelSize );
    void                        Compress( HPBYTE pSrc, sal_uLong nSize );
    void                        EndCompression();
};

#endif // _GIFLZWC_HXX

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