lwpidxmgr.hxx

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/*************************************************************************
 * @file
 *  index manager, to maintain the map between object id and offset
 ************************************************************************/
 
#ifndef INCLUDED_LOTUSWORDPRO_INC_LWPIDXMGR_HXX
#define INCLUDED_LOTUSWORDPRO_INC_LWPIDXMGR_HXX
 
#include <config_lgpl.h>
#include "lwpobjid.hxx"
#include "lwpobjstrm.hxx"
 
struct LwpKey
{
    LwpObjectID id;
    sal_uInt32 offset = 0;
};
 
class LwpIndexManager final
{
public:
    LwpIndexManager();
private:
    static const sal_uInt8 MAXOBJECTIDS;
    std::vector<LwpKey> m_ObjectKeys;      //the <id, offset> ordered vector
    std::vector<LwpKey> m_RootObjs;        //For those object ids in RootObjIndex
    std::vector<sal_uInt32> m_TimeTable;   //Time table for object low id compression
 
    //sal_uInt16 m_nKeyCount;
    sal_uInt32 m_nKeyCount;     //the count of all object
    std::vector<sal_uInt32> m_TempVec;  // a temp vector , store the offset of leafindex
 
    sal_uInt32 m_ChildIndex[256];   //Offset of leaf index
    sal_uInt16 m_nLeafCount;
 
    void ReadRootData(LwpObjectStream *pObjStrm );  //Read root index data
 
    //Add new method to handle ObjIndex
    void ReadObjIndexData(LwpObjectStream* pObjStrm);
    void ReadObjIndex( LwpSvStream *pStrm );    //Read Obj index
 
    void ReadLeafIndex( LwpSvStream *pStrm );   //Read leaf index obj
    void ReadLeafData( LwpObjectStream *pStrm );    //Read leaf index obj data
    void ReadTimeTable( LwpObjectStream *pStrm );
public:
    void Read( LwpSvStream *pStrm );
    sal_uInt32 GetObjOffset( LwpObjectID objid );
    sal_uInt32 GetObjTime( sal_uInt16 index ) { return m_TimeTable.at(index-1); }
};
#endif
 
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