/******************************************************************************
 * $Id: ogrdxfdriver.cpp 18535 2010-01-12 01:40:32Z warmerdam $
 *
 * Project:  DWG Translator
 * Purpose:  Implements OGRDWGDriver.
 * Author:   Frank Warmerdam, warmerdam@pobox.com
 *
 ******************************************************************************
 * Copyright (c) 2011, Frank Warmerdam <warmerdam@pobox.com>
 *
 * 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_dwg.h"
#include "cpl_conv.h"

CPL_CVSID("$Id: ogrdxfdriver.cpp 18535 2010-01-12 01:40:32Z warmerdam $");

CPL_C_START
void CPL_DLL RegisterOGRDWG();
CPL_C_END

/************************************************************************/
/*                            OGRDWGDriver()                            */
/************************************************************************/

OGRDWGDriver::OGRDWGDriver()

{
    bInitialized = FALSE;
}

/************************************************************************/
/*                          ~OGRDWGDriver()                          */
/************************************************************************/

OGRDWGDriver::~OGRDWGDriver()

{
    if( bInitialized && !CPLTestBool(
            CPLGetConfigOption("IN_GDAL_GLOBAL_DESTRUCTOR", "NO")) )
    {
        bInitialized = FALSE;
        odUninitialize();
    }
}

/************************************************************************/
/*                             Initialize()                             */
/************************************************************************/

void OGRDWGDriver::Initialize()

{
    if( bInitialized )
        return;

    bInitialized = TRUE;

    OdGeContext::gErrorFunc = ErrorHandler;

    odInitialize(&oServices);
    oServices.disableOutput( true );

    /********************************************************************/
    /* Find the data file and and initialize the character mapper       */
    /********************************************************************/
    OdString iniFile = oServices.findFile(OD_T("adinit.dat"));
    if (!iniFile.isEmpty())
      OdCharMapper::initialize(iniFile);

}

/************************************************************************/
/*                            ErrorHandler()                            */
/************************************************************************/

void OGRDWGDriver::ErrorHandler( OdResult oResult )

{
    CPLError( CE_Failure, CPLE_AppDefined,
              "GeError:%s",
              (const char *) OdError(oResult).description().c_str() );
}

/************************************************************************/
/*                              GetName()                               */
/************************************************************************/

const char *OGRDWGDriver::GetName()

{
    return "DWG";
}

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

OGRDataSource *OGRDWGDriver::Open( const char * pszFilename, int bUpdate )

{
    Initialize();

    OGRDWGDataSource   *poDS = new OGRDWGDataSource();

    if( !poDS->Open( &oServices, pszFilename ) )
    {
        delete poDS;
        poDS = NULL;
    }

    return poDS;
}

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

int OGRDWGDriver::TestCapability( const char * pszCap )

{
    return FALSE;
}

/************************************************************************/
/*                           RegisterOGRDWG()                           */
/************************************************************************/

void RegisterOGRDWG()

{
    OGRSFDriver* poDriver = new OGRDWGDriver;
    poDriver->SetMetadataItem( GDAL_DMD_LONGNAME,
                                "AutoCAD DWG" );
    poDriver->SetMetadataItem( GDAL_DMD_EXTENSION, "dwg" );
    poDriver->SetMetadataItem( GDAL_DMD_HELPTOPIC,
                                "drv_dwg.html" );
    OGRSFDriverRegistrar::GetRegistrar()->RegisterDriver( poDriver );
}