/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
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 *
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
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 *
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#ifndef _DEFLATER_HXX_
#define _DEFLATER_HXX_

#include <com/sun/star/uno/Sequence.hxx>

extern "C"
{
    typedef struct z_stream_s z_stream;
}

class Deflater
{
protected:
    com::sun::star::uno::Sequence< sal_Int8 > sInBuffer;
    sal_Bool                bFinish;
    sal_Bool                bFinished;
    sal_Bool                bSetParams;
    sal_Int32               nLevel, nStrategy;
    sal_Int32               nOffset, nLength;
    z_stream*               pStream;

    void init (sal_Int32 nLevel, sal_Int32 nStrategy, sal_Bool bNowrap);
    sal_Int32 doDeflateBytes (com::sun::star::uno::Sequence < sal_Int8 > &rBuffer, sal_Int32 nNewOffset, sal_Int32 nNewLength);

public:
    ~Deflater();
    Deflater(sal_Int32 nSetLevel, sal_Bool bNowrap);
    void SAL_CALL setInputSegment( const ::com::sun::star::uno::Sequence< sal_Int8 >& rBuffer, sal_Int32 nNewOffset, sal_Int32 nNewLength );
    void SAL_CALL setLevel( sal_Int32 nNewLevel );
    sal_Bool SAL_CALL needsInput(  );
    void SAL_CALL finish(  );
    sal_Bool SAL_CALL finished(  );
    sal_Int32 SAL_CALL doDeflateSegment( ::com::sun::star::uno::Sequence< sal_Int8 >& rBuffer, sal_Int32 nNewOffset, sal_Int32 nNewLength );
    sal_Int32 SAL_CALL getTotalIn(  );
    sal_Int32 SAL_CALL getTotalOut(  );
    void SAL_CALL reset(  );
    void SAL_CALL end(  );
};

#endif

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