Remaining fix for bug #3459

git-svn-id: http://svn.osgeo.org/qgis/trunk@15121 c8812cc2-4d05-0410-92ff-de0c093fc19c
qgis · Feb 2, 2011 · 68bd1e5 · 68bd1e5
1 parent c56527f
commit 68bd1e5
Showing 1 changed file with 9 additions and 3 deletions.
diff --git a/src/app/qgisapp.cpp b/src/app/qgisapp.cpp
@@ -4933,16 +4933,22 @@ void QgisApp::layerSubsetString()
 
   // launch the query builder
   QgsQueryBuilder *qb = new QgsQueryBuilder( vlayer, this );
+  QString subsetBefore = vlayer->subsetString();
 
   // Set the sql in the query builder to the same in the prop dialog
   // (in case the user has already changed it)
   qb->setSql( vlayer->subsetString() );
   // Open the query builder
   if ( qb->exec() )
   {
-    // if the sql is changed, update it in the prop subset text box
-    vlayer->setSubsetString( qb->sql() );
-    mMapCanvas->refresh();
+    if ( subsetBefore != qb->sql() )
+    {
+      mMapCanvas->refresh();
+      if ( mMapLegend )
+      {
+        mMapLegend->refreshLayerSymbology( vlayer->getLayerID(), false );
+      }
+    }
   }
 
   // delete the query builder object