void QgsMapToolDeleteRing::deleteRing( QgsFeatureId fId, int beforeVertexNr, QgsVectorLayer *vlayer )
{
QgsFeature f;
vlayer->getFeatures( QgsFeatureRequest().setFilterFid( fId ) ).nextFeature( f );
const QgsGeometry g = f.geometry();
QgsWkbTypes::Type wkbtype = g.wkbType();
int ringNum, partNum = 0;
if ( wkbtype == QgsWkbTypes::Polygon || wkbtype == QgsWkbTypes::Polygon25D )
{
ringNum = ringNumInPolygon( g, beforeVertexNr );
}
else if ( wkbtype == QgsWkbTypes::MultiPolygon || wkbtype == QgsWkbTypes::MultiPolygon25D )
{
ringNum = ringNumInMultiPolygon( g, beforeVertexNr, partNum );
}
else
return;
QgsGeometry editableGeom = f.geometry();
if ( editableGeom.deleteRing( ringNum, partNum ) )
{
vlayer->beginEditCommand( tr( "Ring deleted" ) );
vlayer->changeGeometry( fId, editableGeom );
vlayer->endEditCommand();
vlayer->triggerRepaint();
}
}
void QgsMapToolDeleteRing::deleteRing( QgsFeatureId fId, int beforeVertexNr, QgsVectorLayer* vlayer )
{
QgsFeature f;
vlayer->getFeatures( QgsFeatureRequest().setFilterFid( fId ) ).nextFeature( f );
QgsGeometry* g = f.geometry();
QGis::WkbType wkbtype = g->wkbType();
int ringNum, partNum = 0;
if ( wkbtype == QGis::WKBPolygon || wkbtype == QGis::WKBPolygon25D )
{
ringNum = ringNumInPolygon( g, beforeVertexNr );
}
else if ( wkbtype == QGis::WKBMultiPolygon || wkbtype == QGis::WKBMultiPolygon25D )
{
ringNum = ringNumInMultiPolygon( g, beforeVertexNr, partNum );
}
else
return;
if ( g->deleteRing( ringNum, partNum ) )
{
vlayer->beginEditCommand( tr( "Ring deleted" ) );
vlayer->changeGeometry( fId, g );
vlayer->endEditCommand();
mCanvas->refresh();
}
}
void QgsMapToolDeleteRing::canvasReleaseEvent( QgsMapMouseEvent *e )
{
Q_UNUSED( e );
delete mRubberBand;
mRubberBand = nullptr;
if ( mPressedFid == -1 )
return;
QgsFeature f;
vlayer->getFeatures( QgsFeatureRequest().setFilterFid( mPressedFid ) ).nextFeature( f );
QgsGeometry g = f.geometry();
if ( g.deleteRing( mPressedRingNum, mPressedPartNum ) )
{
vlayer->beginEditCommand( tr( "Ring deleted" ) );
vlayer->changeGeometry( mPressedFid, g );
vlayer->endEditCommand();
vlayer->triggerRepaint();
}
}