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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;
    sal_uLong m_nSeekedFrom;

    SVL_DLLPRIVATE bool open();

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

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

    SVL_DLLPRIVATE virtual sal_uLong SeekPos(sal_uLong nPos);

    SVL_DLLPRIVATE virtual void FlushData();

    SVL_DLLPRIVATE virtual void SetSize(sal_uLong);

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

    virtual ~SvInputStream();

    virtual sal_uInt16 IsA() const;

    virtual void AddMark(sal_uLong nPos);

    virtual void RemoveMark(sal_uLong nPos);
};

#endif // SVTOOLS_INSTRM_HXX

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