/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2008 by Sun Microsystems, Inc.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * $RCSfile: instrm.hxx,v $
 * $Revision: 1.4 $
 *
 * This file is part of OpenOffice.org.
 *
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 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
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 ************************************************************************/

#ifndef SVTOOLS_INSTRM_HXX
#define SVTOOLS_INSTRM_HXX

#include "svl/svldllapi.h"
#include <com/sun/star/uno/Reference.h>
#include <tools/stream.hxx>

namespace com { namespace sun { namespace star { namespace io {
    class XInputStream;
    class XSeekable;
} } } }

class SvDataPipe_Impl;

//============================================================================
class SVL_DLLPUBLIC SvInputStream: public SvStream
{
    com::sun::star::uno::Reference< com::sun::star::io::XInputStream >
        m_xStream;
    com::sun::star::uno::Reference< com::sun::star::io::XSeekable >
        m_xSeekable;
    SvDataPipe_Impl * m_pPipe;
    ULONG m_nSeekedFrom;

    SVL_DLLPRIVATE bool open();

    SVL_DLLPRIVATE virtual ULONG GetData(void * pData, ULONG nSize);

    SVL_DLLPRIVATE virtual ULONG PutData(void const *, ULONG);

    SVL_DLLPRIVATE virtual ULONG SeekPos(ULONG nPos);

    SVL_DLLPRIVATE virtual void FlushData();

    SVL_DLLPRIVATE virtual void SetSize(ULONG);

public:
    SvInputStream(
        com::sun::star::uno::Reference< com::sun::star::io::XInputStream >
                const &
            rTheStream);

    virtual ~SvInputStream();

    virtual USHORT IsA() const;

    virtual void AddMark(ULONG nPos);

    virtual void RemoveMark(ULONG nPos);
};

#endif // SVTOOLS_INSTRM_HXX