bool QgsVectorLayerEditUtils::insertVertex( double x, double y, QgsFeatureId atFeatureId, int beforeVertex )
{
if ( !L->hasGeometryType() )
return false;
QgsGeometry geometry;
if ( !cache()->geometry( atFeatureId, geometry ) )
return false; // TODO: support also uncached geometries
geometry.insertVertex( x, y, beforeVertex );
L->editBuffer()->changeGeometry( atFeatureId, &geometry );
return true;
}
bool QgsVectorLayerEditUtils::insertVertex( const QgsPoint &point, QgsFeatureId atFeatureId, int beforeVertex )
{
if ( !mLayer->isSpatial() )
return false;
QgsFeature f;
if ( !mLayer->getFeatures( QgsFeatureRequest().setFilterFid( atFeatureId ).setSubsetOfAttributes( QgsAttributeList() ) ).nextFeature( f ) || !f.hasGeometry() )
return false; // geometry not found
QgsGeometry geometry = f.geometry();
geometry.insertVertex( point, beforeVertex );
mLayer->editBuffer()->changeGeometry( atFeatureId, geometry );
return true;
}
bool QgsVectorLayerEditUtils::insertVertex( double x, double y, QgsFeatureId atFeatureId, int beforeVertex )
{
if ( !L->hasGeometryType() )
return false;
QgsGeometry geometry;
if ( !cache()->geometry( atFeatureId, geometry ) )
{
// it's not in cache: let's fetch it from layer
QgsFeature f;
if ( !L->getFeatures( QgsFeatureRequest().setFilterFid( atFeatureId ).setSubsetOfAttributes( QgsAttributeList() ) ).nextFeature( f ) || !f.constGeometry() )
return false; // geometry not found
geometry = *f.constGeometry();
}
geometry.insertVertex( x, y, beforeVertex );
L->editBuffer()->changeGeometry( atFeatureId, &geometry );
return true;
}