lwpobjid.hxx

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/*************************************************************************
 * @file
 *  For LWP filter architecture prototype
 ************************************************************************/
 
#ifndef INCLUDED_LOTUSWORDPRO_INC_LWPOBJID_HXX
#define INCLUDED_LOTUSWORDPRO_INC_LWPOBJID_HXX
 
#include <sal/config.h>
 
#include <config_lgpl.h>
 
#include <rtl/ref.hxx>
 
#include "lwpobjstrm.hxx"
#include "lwpdefs.hxx"
 
class LwpObject;
 
class LwpObjectID
{
public:
    LwpObjectID();
private:
    sal_uInt32 m_nLow;
    sal_uInt16 m_nHigh;
    sal_uInt8 m_nIndex;
    bool m_bIsCompressed;
public:
    void Read( LwpSvStream *pStrm );
    sal_uInt32 Read( LwpObjectStream *pStrm );
    void ReadIndexed( LwpSvStream* pStrm );
    sal_uInt32 ReadIndexed( LwpObjectStream *pStrm );
    void ReadCompressed( LwpObjectStream* pObj, LwpObjectID const & prev );
 
    static sal_uInt32 DiskSize() { return sizeof(sal_uInt32) + sizeof(sal_uInt16); } // sizeof(m_nLow) + sizeof(m_nHigh)
    sal_uInt32 DiskSizeIndexed() const;
    bool IsNull() const;
 
    sal_uInt32 GetLow() const ;
    sal_uInt16 GetHigh() const ;
 
    bool operator == (const LwpObjectID &Other) const;
    bool operator != (const LwpObjectID &Other) const;
    rtl::Reference<LwpObject> obj(VO_TYPE tag=VO_INVALID) const;
    size_t HashCode() const;
};
 
inline bool LwpObjectID::IsNull() const
{
    return (m_nLow == 0) && (m_nHigh == 0);
}
 
inline bool LwpObjectID::operator == (const LwpObjectID &Other) const
{
    return (m_nHigh == Other.m_nHigh) && (m_nLow == Other.m_nLow);
}
 
inline bool LwpObjectID::operator != (const LwpObjectID &Other) const
{
    return (m_nHigh != Other.m_nHigh) || (m_nLow != Other.m_nLow);
}
 
inline sal_uInt32 LwpObjectID::GetLow() const
{
    return m_nLow;
}
 
inline sal_uInt16 LwpObjectID::GetHigh() const
{
    return m_nHigh;
}
 
inline size_t LwpObjectID::HashCode() const
{
    return static_cast<size_t>(
        (m_nIndex == 0 ? 23 * m_nLow : 27 * m_nIndex) + 29 * m_nHigh);
}
 
#endif
 
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