Fix for other multiple redraws

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@15174 c8812cc2-4d05-0410-92ff-de0c093fc19c

src/app/legend/qgslegendlayer.cpp

@@ -340,7 +340,16 @@ void QgsLegendLayer::updateIcon()
   // TODO: projection error icon?
 
   QIcon theIcon( newIcon );
+  QgsLegend* l = legend();
+  if ( l )
+  {
+    l->blockSignals( true ); //prevent unnecessary canvas redraw
+  }
   setIcon( 0, theIcon );
+  if ( l )
+  {
+    l->blockSignals( false );
+  }
 }
 
 QPixmap QgsLegendLayer::getOriginalPixmap()

src/core/qgsvectorlayer.cpp

@@ -3653,9 +3653,6 @@ bool QgsVectorLayer::commitChanges()
 
   updateFieldMap();
   mDataProvider->updateExtents();
-
-  triggerRepaint();
-
   QgsDebugMsg( "result:\n  " + mCommitErrors.join( "\n  " ) );
 
   return success;
@@ -3717,8 +3714,6 @@ bool QgsVectorLayer::rollBack()
   // invalidate the cache so the layer updates properly to show its original
   // after the rollback
   setCacheImage( 0 );
-  triggerRepaint();
-
   return true;
 }