show an empty area when dropping applets from applet browser to the

panel, making easier to add applets

svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=874087

containment.cpp

@@ -430,6 +430,11 @@ void Containment::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
     }
 }
 
+void Containment::showDropZone(const QPoint pos)
+{
+    //Base implementation does nothing, don't put code here
+}
+
 void Containment::showContextMenu(const QPointF &containmentPos, const QPoint &screenPos)
 {
     d->showContextMenu(mapToScene(containmentPos), screenPos, false);

containment.h

@@ -315,6 +315,14 @@ class PLASMA_EXPORT Containment : public Applet
          */
         void showContextMenu(const QPointF &containmentPos, const QPoint &screenPos);
 
+        /**
+         * Shows a visual clue for drag and drop
+         * This implementation does nothing, reimplement in containments that needs it
+         *
+         * @param pos point where to show the drop target
+         */
+        virtual void showDropZone(const QPoint pos);
+
     Q_SIGNALS:
         /**
          * This signal is emitted when a new applet is created by the containment