binfile.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/oledoc/binfile.cpp,v $
 * $Revision: 1.1.1.1 $
 * $Author: darioglz $
 * $Date: 2004/08/27 16:31:43 $
 *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 *
 * File description:
 *
 *
 *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */


#include "binfile.h"

using namespace std;
using namespace xlslib_core;

/* 
******************************
CBinFile class Implementation
******************************
*/

CBinFile::CBinFile()
   : is_stroke(false)
{

}


CBinFile::CBinFile(const string& name)
   : is_stroke(false)
{
   Open(name);

}


CBinFile::~CBinFile ()
{
   Close();

}

/* 
******************************
******************************
*/
int CBinFile::Open(const string& file_name)
{
   Close();
   m_File.open(file_name.c_str(),ios_base::binary|ios_base::out);

   return m_File.good()? NO_ERRORS: FILE_ERROR;
}

/* 
******************************
******************************
*/
int CBinFile::Close (  )
{
   if(m_File.is_open())
      m_File.close();

   return NO_ERRORS;
}

/* 
******************************
******************************
*/
int CBinFile::Write ( unsigned8_t * data, unsigned32_t size )
{
   int errcode = NO_ERRORS;

   write_service((const char*)data, size);
   return errcode;
    
}


/* 
******************************
******************************
*/
int CBinFile::Write ( CUnit& data_unit )
{



   int errcode = NO_ERRORS;
   write_service((const char*)data_unit.GetBuffer(), data_unit.GetDataSize());
   return errcode;
    
}

/* 
******************************
******************************
*/
int CBinFile::WriteByte(unsigned8_t byte)
{

   int errcode = NO_ERRORS;
   write_service((const char*)&byte, 1);
   return errcode;
}

/* 
******************************
******************************
*/
int CBinFile::WriteUnsigned16(unsigned16_t data)
{
   int errcode = NO_ERRORS;

   WriteByte(BYTE_0(data));
   WriteByte(BYTE_1(data));

   return errcode;
}

/* 
******************************
******************************
*/
int CBinFile::WriteUnsigned32(unsigned32_t data)
{
   int errcode = NO_ERRORS;

   WriteByte(BYTE_0(data));
   WriteByte(BYTE_1(data));
   WriteByte(BYTE_2(data));
   WriteByte(BYTE_3(data));

   return errcode;
}

/* 
******************************
******************************
*/
int CBinFile::WriteSigned16(signed16_t data)
{
   int errcode = NO_ERRORS;

   WriteByte(BYTE_0(data));
   WriteByte(BYTE_1(data));

   return errcode;
}

/* 
******************************
******************************
*/
int CBinFile::WriteSigned32(signed32_t data)
{
   int errcode = NO_ERRORS;
   WriteByte(BYTE_0(data));
   WriteByte(BYTE_1(data));
   WriteByte(BYTE_2(data));
   WriteByte(BYTE_3(data));


   return errcode;
}


int CBinFile::WriteByteArray(const unsigned8_t *data, unsigned32_t size)
{
   int errcode = NO_ERRORS;
   write_service((const char*)data, size);
   return errcode;
}

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

int CBinFile::SerializeFixedArray(const unsigned8_t data, unsigned32_t size)
{
   int errcode = NO_ERRORS;
   
   for (unsigned32_t i = 0; i<size; i++)
      WriteByte(data);

   return errcode;
}

/* 
******************************
******************************
*/
const int CBinFile::STROKE_CHUNK_SIZE = 1024;
int CBinFile::write_service(const char *buffer, int size)
{
   int sent = 0;

   if(!is_stroke)
   {

      if(m_File.is_open())
      {
         if(size > 1)
            m_File.write((const char*)buffer, size);
         else if(size == 1)
            m_File.put(*buffer);

      }
   }
   else
   {
      if (write_fptr != NULL)
      {
         do
         {
            if(size >= STROKE_CHUNK_SIZE)
            {
               sent = write_fptr(buffer, STROKE_CHUNK_SIZE);
               size -= sent;
               buffer += sent;
            }
            else
            {
               sent = write_fptr(buffer, size);
               size -= sent;
               buffer += sent;
            }
         

         }while(size != 0);
      }
   }

   return 0;
}


/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * $Log: binfile.cpp,v $
 * Revision 1.1.1.1  2004/08/27 16:31:43  darioglz
 * Initial Import.
 *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */