OGRDataSource *OGRDGNDriver::Open( const char * pszFilename, int bUpdate )
{
OGRDGNDataSource *poDS;
poDS = new OGRDGNDataSource();
if( !poDS->Open( pszFilename, TRUE, bUpdate )
|| poDS->GetLayerCount() == 0 )
{
delete poDS;
return NULL;
}
else
return poDS;
}
static GDALDataset *OGRDGNDriverOpen( GDALOpenInfo* poOpenInfo )
{
if( !OGRDGNDriverIdentify(poOpenInfo) )
return NULL;
OGRDGNDataSource *poDS = new OGRDGNDataSource();
if( !poDS->Open( poOpenInfo->pszFilename, TRUE,
(poOpenInfo->eAccess == GA_Update) )
|| poDS->GetLayerCount() == 0 )
{
delete poDS;
return NULL;
}
return poDS;
}
OGRDataSource *OGRDGNDriver::CreateDataSource( const char * pszName,
char **papszOptions )
{
/* -------------------------------------------------------------------- */
/* Return a new OGRDataSource() */
/* -------------------------------------------------------------------- */
OGRDGNDataSource *poDS = NULL;
poDS = new OGRDGNDataSource();
if( !poDS->PreCreate( pszName, papszOptions ) )
{
delete poDS;
return NULL;
}
else
return poDS;
}
static GDALDataset *OGRDGNDriverCreate( const char * pszName,
CPL_UNUSED int nBands,
CPL_UNUSED int nXSize,
CPL_UNUSED int nYSize,
CPL_UNUSED GDALDataType eDT,
char **papszOptions )
{
/* -------------------------------------------------------------------- */
/* Return a new OGRDataSource() */
/* -------------------------------------------------------------------- */
OGRDGNDataSource *poDS = NULL;
poDS = new OGRDGNDataSource();
if( !poDS->PreCreate( pszName, papszOptions ) )
{
delete poDS;
return NULL;
}
else
return poDS;
}
static GDALDataset *OGRDGNDriverCreate( const char * pszName,
int /* nBands */,
int /* nXSize */,
int /* nYSize */,
GDALDataType /* eDT */,
char **papszOptions )
{
/* -------------------------------------------------------------------- */
/* Return a new OGRDataSource() */
/* -------------------------------------------------------------------- */
OGRDGNDataSource *poDS = NULL;
poDS = new OGRDGNDataSource();
if( !poDS->PreCreate( pszName, papszOptions ) )
{
delete poDS;
return NULL;
}
return poDS;
}
