OGRErr OGRFeatureDefn::ReorderFieldDefns( int* panMap )
{
if (GetFieldCount() == 0)
return OGRERR_NONE;
OGRErr eErr = OGRCheckPermutation(panMap, nFieldCount);
if (eErr != OGRERR_NONE)
return eErr;
OGRFieldDefn** papoFieldDefnNew = (OGRFieldDefn**)
CPLMalloc(sizeof(OGRFieldDefn*) * nFieldCount);
for(int i=0;i<nFieldCount;i++)
{
papoFieldDefnNew[i] = papoFieldDefn[panMap[i]];
}
CPLFree(papoFieldDefn);
papoFieldDefn = papoFieldDefnNew;
return OGRERR_NONE;
}
OGRErr OGRMemLayer::ReorderFields( int* panMap )
{
if (!bUpdatable)
return OGRERR_FAILURE;
if (poFeatureDefn->GetFieldCount() == 0)
return OGRERR_NONE;
OGRErr eErr = OGRCheckPermutation(panMap, poFeatureDefn->GetFieldCount());
if (eErr != OGRERR_NONE)
return eErr;
/* -------------------------------------------------------------------- */
/* Remap all the internal features. Hopefully there aren't any */
/* external features referring to our OGRFeatureDefn! */
/* -------------------------------------------------------------------- */
for( GIntBig i = 0; i < nMaxFeatureCount; i++ )
{
if( papoFeatures[i] != NULL )
papoFeatures[i]->RemapFields( NULL, panMap );
}
return poFeatureDefn->ReorderFieldDefns( panMap );
}