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 *  Sun Microsystems Inc., October, 2000
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#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

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