/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*************************************************************************

 *

 *  The Contents of this file are made available subject to the terms of

 *  either of the following licenses

 *

 *         - GNU Lesser General Public License Version 2.1

 *         - Sun Industry Standards Source License Version 1.1

 *

 *  Sun Microsystems Inc., October, 2000

 *

 *  GNU Lesser General Public License Version 2.1

 *  =============================================

 *  Copyright 2000 by Sun Microsystems, Inc.

 *  901 San Antonio Road, Palo Alto, CA 94303, USA

 *

 *  This library is free software; you can redistribute it and/or

 *  modify it under the terms of the GNU Lesser General Public

 *  License version 2.1, as published by the Free Software Foundation.

 *

 *  This library is distributed in the hope that it will be useful,

 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 *  Lesser General Public License for more details.

 *

 *  You should have received a copy of the GNU Lesser General Public

 *  License along with this library; if not, write to the Free Software

 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,

 *  MA  02111-1307  USA

 *

 *

 *  Sun Industry Standards Source License Version 1.1

 *  =================================================

 *  The contents of this file are subject to the Sun Industry Standards

 *  Source License Version 1.1 (the "License"); You may not use this file

 *  except in compliance with the License. You may obtain a copy of the

 *  License at http://www.openoffice.org/license.html.

 *

 *  Software provided under this License is provided on an "AS IS" basis,

 *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,

 *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,

 *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.

 *  See the License for the specific provisions governing your rights and

 *  obligations concerning the Software.

 *

 *  The Initial Developer of the Original Code is: IBM Corporation

 *

 *  Copyright: 2008 by IBM Corporation

 *

 *  All Rights Reserved.

 *

 *  Contributor(s): _______________________________________

 *

 *

 ************************************************************************/

#ifndef INCLUDED_LOTUSWORDPRO_INC_LWPSVSTREAM_HXX

#define INCLUDED_LOTUSWORDPRO_INC_LWPSVSTREAM_HXX

#include <config_lgpl.h>

#include <sal/types.h>

class SvStream;

/**

 * @brief   encapsulate XInputStream to provide SvStream like interfaces

*/

class LwpSvStream

{

public:

    LwpSvStream(SvStream* pStream, LwpSvStream* pCompressed = nullptr);

    size_t Read(void* bytes, size_t nBytesToRead);

    void SeekRel(sal_Int64 pos);

    sal_Int64 Tell();

    sal_uInt64 remainingSize();

    sal_Int64 Seek(sal_Int64 pos);

    bool CheckSeek(sal_Int64 pos);

    bool good() const;

    LwpSvStream& ReadUInt8(sal_uInt8& rUInt8);

    LwpSvStream& ReadUInt16(sal_uInt16& rUInt16);

    LwpSvStream& ReadUInt32(sal_uInt32& rUInt32);

    static const sal_uInt32 LWP_STREAM_BASE;

    LwpSvStream* GetCompressedStream() { return m_pCompressedStream; };

    SvStream* GetStream() { return m_pStream; }

private:

    // when the file opened is small file, m_pStream is the decompressed stream

    // when not, m_pStream contains the normal stream

    SvStream* m_pStream;

    // when the file opened is small file, this stream is for saving the

    // compressed stream which is to be used for Chart/OLE as BENTO container

    LwpSvStream* m_pCompressedStream;

};

#endif

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */