legend refresh after data reload

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@15750 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: rblazek

src/app/legend/qgslegendlayer.cpp

@@ -94,6 +94,10 @@ QgsLegendLayer::QgsLegendLayer( QgsMapLayer* layer )
     connect( layer, SIGNAL( editingStopped() ), this, SLOT( updateIcon() ) );
     connect( layer, SIGNAL( layerModified( bool ) ), this, SLOT( updateAfterLayerModification( bool ) ) );
   }
+  if ( qobject_cast<QgsRasterLayer *>( layer ) )
+  {
+    connect( layer, SIGNAL( dataChanged() ), this, SLOT( updateAfterLayerModification() ) );
+  }
   connect( layer, SIGNAL( layerNameChanged() ), this, SLOT( layerNameChanged() ) );
 
   updateIcon();
@@ -545,6 +549,10 @@ void QgsLegendLayer::layerNameChanged()
   setText( 0, name );
 }
 
+void QgsLegendLayer::updateAfterLayerModification()
+{
+  updateAfterLayerModification( false );
+}
 void QgsLegendLayer::updateAfterLayerModification( bool onlyGeomChanged )
 {
   if ( onlyGeomChanged )

src/app/legend/qgslegendlayer.h

@@ -90,6 +90,7 @@ class QgsLegendLayer : public QgsLegendItem
 
     /**Update symbology (e.g. to update feature count in the legend after editing operations)*/
     void updateAfterLayerModification( bool onlyGeomChanged );
+    void updateAfterLayerModification();
 
     void setShowFeatureCount( bool show, bool update = true );
     bool showFeatureCount() const { return mShowFeatureCount; }