QgsRelationReferenceWidget::~QgsRelationReferenceWidget() { deleteHighlight(); unsetMapTool(); if ( mMapTool ) delete mMapTool; }
void QgsRelationReferenceWidget::highlightFeature( QgsFeature f, CanvasExtent canvasExtent ) { if ( !mCanvas ) return; if ( !f.isValid() ) { f = referencedFeature(); if ( !f.isValid() ) return; } if ( !f.hasGeometry() ) { return; } QgsGeometry geom = f.geometry(); // scale or pan if ( canvasExtent == Scale ) { QgsRectangle featBBox = geom.boundingBox(); featBBox = mCanvas->mapSettings().layerToMapCoordinates( mReferencedLayer, featBBox ); QgsRectangle extent = mCanvas->extent(); if ( !extent.contains( featBBox ) ) { extent.combineExtentWith( featBBox ); extent.scale( 1.1 ); mCanvas->setExtent( extent ); mCanvas->refresh(); } } else if ( canvasExtent == Pan ) { QgsGeometry centroid = geom.centroid(); QgsPointXY center = centroid.asPoint(); center = mCanvas->mapSettings().layerToMapCoordinates( mReferencedLayer, center ); mCanvas->zoomByFactor( 1.0, ¢er ); // refresh is done in this method } // highlight deleteHighlight(); mHighlight = new QgsHighlight( mCanvas, f, mReferencedLayer ); QgsIdentifyMenu::styleHighlight( mHighlight ); mHighlight->show(); QTimer *timer = new QTimer( this ); timer->setSingleShot( true ); connect( timer, &QTimer::timeout, this, &QgsRelationReferenceWidget::deleteHighlight ); timer->start( 3000 ); }