OGRLayer *
OGRTABDataSource::ICreateLayer( const char *pszLayerName,
OGRSpatialReference *poSRSIn,
OGRwkbGeometryType /* eGeomTypeIn */,
char **papszOptions )
{
if( !m_bUpdate )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Cannot create layer on read-only dataset.");
return nullptr;
}
// If it is a single file mode file, then we may have already
// instantiated the low level layer. We would just need to
// reset the coordinate system and (potentially) bounds.
IMapInfoFile *poFile = nullptr;
char *pszFullFilename = nullptr;
const char *pszEncoding = CSLFetchNameValue( papszOptions, "ENCODING" );
const char *pszCharset( IMapInfoFile::EncodingToCharset( pszEncoding ) );
if( m_bSingleFile )
{
if( m_bSingleLayerAlreadyCreated )
{
CPLError(
CE_Failure, CPLE_AppDefined,
"Unable to create new layers in this single file dataset.");
return nullptr;
}
m_bSingleLayerAlreadyCreated = TRUE;
poFile = (IMapInfoFile *) m_papoLayers[0];
if( pszEncoding )
poFile->SetCharset( pszCharset );
}
else
{
if( m_bCreateMIF )
{
pszFullFilename =
CPLStrdup(CPLFormFilename(m_pszDirectory, pszLayerName, "mif"));
poFile = new MIFFile;
if( poFile->Open(pszFullFilename, TABWrite,
FALSE, pszCharset) != 0 )
{
CPLFree(pszFullFilename);
delete poFile;
return nullptr;
}
}
else
{
pszFullFilename =
CPLStrdup(CPLFormFilename(m_pszDirectory, pszLayerName, "tab"));
TABFile *poTABFile = new TABFile;
if( poTABFile->Open(pszFullFilename, TABWrite, FALSE,
m_nBlockSize, pszCharset) != 0 )
{
CPLFree(pszFullFilename);
delete poTABFile;
return nullptr;
}
poFile = poTABFile;
}
m_nLayerCount++;
m_papoLayers = static_cast<IMapInfoFile **>(
CPLRealloc(m_papoLayers,sizeof(void*)*m_nLayerCount));
m_papoLayers[m_nLayerCount-1] = poFile;
CPLFree(pszFullFilename);
}
poFile->SetDescription(poFile->GetName());
// Assign the coordinate system (if provided) and set
// reasonable bounds.
if( poSRSIn != nullptr )
{
poFile->SetSpatialRef(poSRSIn);
// SetSpatialRef() has cloned the passed geometry
poFile->GetLayerDefn()->GetGeomFieldDefn(0)->SetSpatialRef(
poFile->GetSpatialRef());
}
// Pull out the bounds if supplied
const char *pszOpt = nullptr;
if( (pszOpt = CSLFetchNameValue(papszOptions, "BOUNDS")) != nullptr ) {
double dfBounds[4];
if( CPLsscanf(pszOpt, "%lf,%lf,%lf,%lf", &dfBounds[0],
&dfBounds[1],
&dfBounds[2],
&dfBounds[3]) != 4 )
{
CPLError(
CE_Failure, CPLE_IllegalArg,
"Invalid BOUNDS parameter, expected min_x,min_y,max_x,max_y");
}
else
{
poFile->SetBounds(dfBounds[0], dfBounds[1], dfBounds[2],
dfBounds[3]);
}
}
if( !poFile->IsBoundsSet() && !m_bCreateMIF )
{
if( poSRSIn != nullptr && poSRSIn->GetRoot() != nullptr &&
EQUAL(poSRSIn->GetRoot()->GetValue(),"GEOGCS") )
poFile->SetBounds(-1000, -1000, 1000, 1000);
else
poFile->SetBounds(-30000000, -15000000, 30000000, 15000000);
}
if(m_bQuickSpatialIndexMode == TRUE &&
poFile->SetQuickSpatialIndexMode(TRUE) != 0)
{
CPLError(CE_Warning, CPLE_AppDefined,
"Setting Quick Spatial Index Mode failed.");
}
else if(m_bQuickSpatialIndexMode == FALSE &&
poFile->SetQuickSpatialIndexMode(FALSE) != 0)
{
CPLError(CE_Warning, CPLE_AppDefined,
"Setting Normal Spatial Index Mode failed.");
}
return poFile;
}
OGRLayer *
OGRTABDataSource::CreateLayer( const char * pszLayerName,
OGRSpatialReference *poSRSIn,
OGRwkbGeometryType /* eGeomTypeIn */,
char ** /* papszOptions */ )
{
IMapInfoFile *poFile;
char *pszFullFilename;
/* -------------------------------------------------------------------- */
/* If it's a single file mode file, then we may have already */
/* instantiated the low level layer. We would just need to */
/* reset the coordinate system and (potentially) bounds. */
/* -------------------------------------------------------------------- */
if( m_bSingleFile )
{
if( m_bSingleLayerAlreadyCreated )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Unable to create new layers in this single file dataset.");
return NULL;
}
m_bSingleLayerAlreadyCreated = TRUE;
poFile = (IMapInfoFile *) m_papoLayers[0];
}
/* -------------------------------------------------------------------- */
/* We need to initially create the file, and add it as a layer. */
/* -------------------------------------------------------------------- */
else
{
if( m_bCreateMIF )
{
pszFullFilename = CPLStrdup( CPLFormFilename( m_pszDirectory,
pszLayerName, "mif" ) );
poFile = new MIFFile;
}
else
{
pszFullFilename = CPLStrdup( CPLFormFilename( m_pszDirectory,
pszLayerName, "tab" ) );
poFile = new TABFile;
}
if( poFile->Open( pszFullFilename, "wb", FALSE ) != 0 )
{
CPLFree( pszFullFilename );
delete poFile;
return FALSE;
}
m_nLayerCount++;
m_papoLayers = (IMapInfoFile **)
CPLRealloc(m_papoLayers,sizeof(void*)*m_nLayerCount);
m_papoLayers[m_nLayerCount-1] = poFile;
CPLFree( pszFullFilename );
}
/* -------------------------------------------------------------------- */
/* Assign the coordinate system (if provided) and set */
/* reasonable bounds. */
/* -------------------------------------------------------------------- */
if( poSRSIn != NULL )
poFile->SetSpatialRef( poSRSIn );
if( !poFile->IsBoundsSet() && !m_bCreateMIF )
{
if( poSRSIn != NULL && poSRSIn->GetRoot() != NULL
&& EQUAL(poSRSIn->GetRoot()->GetValue(),"GEOGCS") )
poFile->SetBounds( -1000, -1000, 1000, 1000 );
else
poFile->SetBounds( -30000000, -15000000, 30000000, 15000000 );
}
if (m_bQuickSpatialIndexMode && poFile->SetQuickSpatialIndexMode() != 0)
{
CPLError( CE_Warning, CPLE_AppDefined,
"Setting Quick Spatial Index Mode failed.");
}
return poFile;
}
