void QgsMapToolDeletePart::canvasReleaseEvent( QgsMapMouseEvent* e )
{
Q_UNUSED( e );
delete mRubberBand;
mRubberBand = 0;
if ( !vlayer || !vlayer->isEditable() )
{
return;
}
if ( mPressedFid == -1 )
return;
QgsFeature f;
vlayer->getFeatures( QgsFeatureRequest().setFilterFid( mPressedFid ) ).nextFeature( f );
QgsGeometry* g = f.geometry();
if ( g->deletePart( mPressedPartNum ) )
{
vlayer->beginEditCommand( tr( "Part of multipart feature deleted" ) );
vlayer->changeGeometry( f.id(), g );
vlayer->endEditCommand();
mCanvas->refresh();
}
else
{
emit messageEmitted( tr( "Couldn't remove the selected part." ) );
}
return;
}
void QgsMapToolDeletePart::deletePart( QgsFeatureId fId, int beforeVertexNr, QgsVectorLayer* vlayer )
{
QgsFeature f;
vlayer->getFeatures( QgsFeatureRequest().setFilterFid( fId ) ).nextFeature( f );
// find out the part number
QgsGeometry* g = f.geometry();
if ( !g->isMultipart() )
{
QMessageBox::information( mCanvas, tr( "Delete part" ), tr( "This isn't a multipart geometry." ) );
return;
}
int partNum = partNumberOfVertex( g, beforeVertexNr );
if ( g->deletePart( partNum ) )
{
vlayer->beginEditCommand( tr( "Part of multipart feature deleted" ) );
vlayer->changeGeometry( fId, g );
vlayer->endEditCommand();
mCanvas->refresh();
}
else
{
QMessageBox::information( mCanvas, tr( "Delete part" ), tr( "Couldn't remove the selected part." ) );
}
}