EVOLUTION-MANAGER

Edit File: ogravce00datasource.cpp

/******************************************************************************
 *
 * Project:  OGR
 * Purpose:  Implements OGRAVCE00DataSource class.
 * Author:   Frank Warmerdam, warmerdam@pobox.com
 *           James Flemer <jflemer@alum.rpi.edu>
 *
 ******************************************************************************
 * Copyright (c) 2002, Frank Warmerdam <warmerdam@pobox.com>
 * Copyright (c) 2006, James Flemer <jflemer@alum.rpi.edu>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 ****************************************************************************/

#include "ogr_avc.h"
#include "cpl_conv.h"
#include "cpl_string.h"

CPL_CVSID("$Id: ogravce00datasource.cpp 35903 2016-10-24 12:09:43Z goatbar $");

/************************************************************************/
/*                        OGRAVCE00DataSource()                         */
/************************************************************************/

OGRAVCE00DataSource::OGRAVCE00DataSource() :
    nLayers(0),
    pszName(NULL),
    psE00(NULL),
    papoLayers(NULL)
{}

/************************************************************************/
/*                        ~OGRAVCE00DataSource()                        */
/************************************************************************/

OGRAVCE00DataSource::~OGRAVCE00DataSource()

{
    if( psE00 )
    {
        AVCE00ReadCloseE00( psE00 );
        psE00 = NULL;
    }

CPLFree( pszName );

for( int i = 0; i < nLayers; i++ )
        delete papoLayers[i];

CPLFree( papoLayers );
}

/************************************************************************/
/*                                Open()                                */
/************************************************************************/

int OGRAVCE00DataSource::Open( const char * pszNewName, int bTestOpen )

{
/* -------------------------------------------------------------------- */
/*      Open the source file.  Suppress error reporting if we are in    */
/*      TestOpen mode.                                                  */
/* -------------------------------------------------------------------- */
    bool bCompressed = false;

if( bTestOpen )
        CPLPushErrorHandler( CPLQuietErrorHandler );

psE00 = AVCE00ReadOpenE00(pszNewName);

if( CPLGetLastErrorNo() == CPLE_OpenFailed
        && strstr(CPLGetLastErrorMsg(), "compressed E00") != NULL )
    {
        bCompressed = true;
    }

if( bTestOpen )
    {
        CPLPopErrorHandler();
        CPLErrorReset();
    }

if( psE00 == NULL )
    {
        if( bCompressed )
        {
            CPLError(CE_Failure, CPLE_OpenFailed,
                     "This looks like a compressed E00 file and cannot be "
                     "processed directly. You may need to uncompress it "
                     "first using the E00compr library or the e00conv "
                     "program." );
        }
        return FALSE;
    }

pszName = CPLStrdup( pszNewName );
    /* pszCoverageName = CPLStrdup( psE00->pszCoverName ); */
    pszCoverageName = CPLStrdup( pszNewName );

/* -------------------------------------------------------------------- */
/*      Create layers for the "interesting" sections of the coverage.   */
/* -------------------------------------------------------------------- */
    papoLayers = static_cast<OGRAVCE00Layer **>(
        CPLCalloc( sizeof(OGRAVCE00Layer *), psE00->numSections ) );
    nLayers = 0;

for( int iSection = 0; iSection < psE00->numSections; iSection++ )
    {
        AVCE00Section *psSec = psE00->pasSections + iSection;

switch( psSec->eType )
        {
          case AVCFileARC:
          case AVCFilePAL:
          case AVCFileCNT:
          case AVCFileLAB:
          case AVCFileRPL:
          case AVCFileTXT:
            papoLayers[nLayers++] = new OGRAVCE00Layer( this, psSec );
            break;

case AVCFileTX6:
            break;

case AVCFileTABLE:
            CheckAddTable(psSec);
            break;

case AVCFilePRJ:
          {
#if 0
              poSRS = new OGRSpatialReference();
              AVCE00File *hFile
                  = AVCE00ReadOpen( psE00->pszCoverPath,
                                    psSec->pszFilename,
                                    psE00->eCoverType,
                                    psSec->eType,
                                    psE00->psDBCSInfo);
              if( hFile && poSRS == NULL )
              {
                  char **papszPRJ = AVCE00ReadNextPrj( hFile );

poSRS = new OGRSpatialReference();
                  if( poSRS->importFromESRI( papszPRJ ) != OGRERR_NONE )
                  {
                      CPLError( CE_Warning, CPLE_AppDefined,
                                "Failed to parse PRJ section, ignoring." );
                      delete poSRS;
                      poSRS = NULL;
                  }
                  AVCE00ReadClose( hFile );
              }
#endif
          }
          break;

default:
            ;
        }
    }

return nLayers > 0;
}

int OGRAVCE00DataSource::CheckAddTable( AVCE00Section *psTblSection )
{
    int nCount = 0;
    for (int i = 0; i < nLayers; ++i)
    {
        if( papoLayers[i]->CheckSetupTable(psTblSection) )
            ++nCount;
    }
    return nCount;
}

/************************************************************************/
/*                           TestCapability()                           */
/************************************************************************/

int OGRAVCE00DataSource::TestCapability( const char * /* pszCap */ )
{
    return FALSE;
}

/************************************************************************/
/*                              GetLayer()                              */
/************************************************************************/

OGRLayer *OGRAVCE00DataSource::GetLayer( int iLayer )

{
    if( iLayer < 0 || iLayer >= nLayers )
        return NULL;

return papoLayers[iLayer];
}

/************************************************************************/
/*                           GetSpatialRef()                            */
/************************************************************************/
OGRSpatialReference *OGRAVCE00DataSource::GetSpatialRef()
{
    if (poSRS != NULL)
        return poSRS;
    if (psE00 == NULL)
        return NULL;

for( int iSection = 0; iSection < psE00->numSections; iSection++ )
    {
        AVCE00Section *psSec = psE00->pasSections + iSection;
        if (psSec->eType == AVCFilePRJ)
        {
            AVCE00ReadGotoSectionE00(psE00, psSec, 0);
            char **pszPRJ
                = static_cast<char **>( AVCE00ReadNextObjectE00(psE00) );
            poSRS = new OGRSpatialReference();
            if( poSRS->importFromESRI( pszPRJ ) != OGRERR_NONE )
            {
                CPLError( CE_Warning, CPLE_AppDefined,
                          "Failed to parse PRJ section, ignoring." );
                delete poSRS;
                poSRS = NULL;
            }
            break;
        }
    }

return poSRS;
}