index.cpp

xls文件格式分析基础库

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright (C) Yeico S. A. de C. V.
 * xlsLib -- A multiplatform, C++ library for dynamic generation of Excel (TM) 
 * files.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *  
 * $Source: /cvsroot/xlslib/xlslib/src/xlslib/index.cpp,v $
 * $Revision: 1.1.1.1 $
 * $Author: darioglz $
 * $Date: 2004/08/27 16:31:53 $
 *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 *
 * File description:
 *
 *
 *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */


#include "index.h"

using namespace std;
using namespace xlslib_core;


/*
******************************
CIndex class implementation
******************************
*/
CIndex::CIndex(unsigned32_t firstrow, 
               unsigned32_t lastrow,
               unsigned16_t biffversion)
{
   SetRecordType((signed32_t)RECTYPE_INDEX);

   AddValue32(INDEX_DFLT_RESERVED);

   if(VERSION_BIFF57 == biffversion)
   {
      AddValue16(firstrow);
      AddValue16(lastrow+1);

      m_BiffVersion = VERSION_BIFF57;
   }
   else
   {
      AddValue32(firstrow);
      AddValue32(lastrow+1);

      m_BiffVersion = VERSION_BIFF8;
   
   }


   AddValue32(INDEX_DFLT_RESERVED);
// NOTE: This record is created with an empty array. It should work if the rest
// of the record is not completed later, since the record's size reflects the
// lack of such array
   SetRecordLength(GetDataSize()-4);
}

CIndex::~CIndex()
{
}


/* 
**********************************
**********************************
*/
void CIndex::AddDBCellOffset(unsigned32_t dboffset)
{
   AddValue32(dboffset);

   SetRecordLength(GetDataSize()-4); // Update record's length
}

/* 
**********************************
**********************************
*/
void CIndex::SetRows(unsigned32_t firstrow,
                     unsigned32_t lastrow)
{
   if(VERSION_BIFF57 == m_BiffVersion)
   {
      SetValueAt((signed16_t)firstrow, INDEX_OFFSET_B7FIRSTROW);
      SetValueAt((signed16_t)lastrow, INDEX_OFFSET_B7LASTROW);

   }
   else
   {
      SetValueAt((signed32_t)firstrow, INDEX_OFFSET_B7FIRSTROW);
      SetValueAt((signed32_t)lastrow, INDEX_OFFSET_B7LASTROW);
   }

}

/* 
**********************************
**********************************
*/

unsigned32_t CIndex::GetFirstRow(void)
{

   unsigned32_t retval;
   if(VERSION_BIFF57 == m_BiffVersion)
   {
      signed16_t firstrow;
      GetValue16From(&firstrow, INDEX_OFFSET_B7FIRSTROW);
      retval = firstrow;
   }
   else
   {
      signed32_t firstrow;
      GetValue32From(&firstrow, INDEX_OFFSET_B7FIRSTROW);
      retval = firstrow;
   }
   
   return retval;
}

/* 
**********************************
**********************************
*/

unsigned32_t CIndex::GetLastRow(void)
{

   unsigned32_t retval;
   if(VERSION_BIFF57 == m_BiffVersion)
   {
      signed16_t lastrow;
      GetValue16From(&lastrow, INDEX_OFFSET_B7LASTROW);
      retval = lastrow;
   }
   else
   {
      signed32_t lastrow;
      GetValue32From(&lastrow, INDEX_OFFSET_B7LASTROW);
      retval = lastrow;
   }


   return retval;
}

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * $Log: index.cpp,v $
 * Revision 1.1.1.1  2004/08/27 16:31:53  darioglz
 * Initial Import.
 *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */