Do not draw a rubber band when label/diagram are not moveable

src/app/qgsmaptoolmovelabel.cpp

@@ -57,13 +57,16 @@ void QgsMapToolMoveLabel::canvasPressEvent( QgsMapMouseEvent *e )
 
   int xCol = -1, yCol = -1;
 
-  if ( !mCurrentLabel.pos.isDiagram &&  !labelMoveable( vlayer, mCurrentLabel.settings, xCol, yCol ) )
+  if ( !mCurrentLabel.pos.isDiagram && !labelMoveable( vlayer, mCurrentLabel.settings, xCol, yCol ) )
   {
     QgsPalIndexes indexes;
 
     if ( createAuxiliaryFields( indexes ) )
       return;
 
+    if ( !labelMoveable( vlayer, mCurrentLabel.settings, xCol, yCol ) )
+      return;
+
     xCol = indexes[ QgsPalLayerSettings::PositionX ];
     yCol = indexes[ QgsPalLayerSettings::PositionY ];
   }
@@ -74,6 +77,9 @@ void QgsMapToolMoveLabel::canvasPressEvent( QgsMapMouseEvent *e )
     if ( createAuxiliaryFields( indexes ) )
       return;
 
+    if ( !diagramMoveable( vlayer, xCol, yCol ) )
+      return;
+
     xCol = indexes[ QgsDiagramLayerSettings::PositionX ];
     yCol = indexes[ QgsDiagramLayerSettings::PositionY ];
   }