bool QgsVectorLayerTools::copyMoveFeatures( QgsVectorLayer* layer, QgsFeatureRequest& request, double dx, double dy, QString* errorMsg ) const
{
bool res = false;
if ( !layer || !layer->isEditable() )
{
return false;
}
QgsFeatureIterator fi = layer->getFeatures( request );
QgsFeature f;
QgsAttributeList pkAttrList = layer->pkAttributeList();
int browsedFeatureCount = 0;
int couldNotWriteCount = 0;
int noGeometryCount = 0;
QgsFeatureIds fidList;
while ( fi.nextFeature( f ) )
{
browsedFeatureCount++;
// remove pkey values
Q_FOREACH ( auto idx, pkAttrList )
{
f.setAttribute( idx, QVariant() );
}
// translate
if ( f.hasGeometry() )
{
QgsGeometry geom = f.geometry();
geom.translate( dx, dy );
f.setGeometry( geom );
#ifdef QGISDEBUG
const QgsFeatureId fid = f.id();
#endif
// paste feature
if ( !layer->addFeature( f, false ) )
{
couldNotWriteCount++;
QgsDebugMsg( QString( "Could not add new feature. Original copied feature id: %1" ).arg( fid ) );
}
else
{
fidList.insert( f.id() );
}
}
else
{
noGeometryCount++;
}
}
int QgsVectorLayerEditUtils::translateFeature( QgsFeatureId featureId, double dx, double dy )
{
if ( !mLayer->isSpatial() )
return 1;
QgsFeature f;
if ( !mLayer->getFeatures( QgsFeatureRequest().setFilterFid( featureId ).setSubsetOfAttributes( QgsAttributeList() ) ).nextFeature( f ) || !f.hasGeometry() )
return 1; //geometry not found
QgsGeometry geometry = f.geometry();
int errorCode = geometry.translate( dx, dy );
if ( errorCode == 0 )
{
mLayer->editBuffer()->changeGeometry( featureId, geometry );
}
return errorCode;
}
int QgsVectorLayerEditUtils::translateFeature( QgsFeatureId featureId, double dx, double dy )
{
if ( !L->hasGeometryType() )
return 1;
QgsGeometry geometry;
if ( !cache()->geometry( featureId, geometry ) ) // maybe it's in cache
{
// it's not in cache: let's fetch it from layer
QgsFeature f;
if ( !L->getFeatures( QgsFeatureRequest().setFilterFid( featureId ).setSubsetOfAttributes( QgsAttributeList() ) ).nextFeature( f ) || !f.constGeometry() )
return 1; //geometry not found
geometry = *f.constGeometry();
}
int errorCode = geometry.translate( dx, dy );
if ( errorCode == 0 )
{
L->editBuffer()->changeGeometry( featureId, &geometry );
}
return errorCode;
}