react to changes of Plasma::Theme

svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=773942

applet.cpp

@@ -167,6 +167,8 @@ public:
             }
         }
         applet->setDrawStandardBackground(true);
+
+        connect(Plasma::Theme::self(), SIGNAL(changed()), applet, SLOT(themeChanged()));
     }
 
     // put all setup routines for script here. at this point we can assume that
@@ -1387,6 +1389,11 @@ bool Applet::isContainment() const
     return d->isContainment;
 }
 
+void Applet::themeChanged()
+{
+    update();
+}
+
 } // Plasma namespace
 
 #include "applet.moc"

applet.h

@@ -676,6 +676,11 @@ class PLASMA_EXPORT Applet : public Widget
          */
         void launchActivated();
 
+        /**
+         * called when the Plasma::Theme has changed
+         */
+        void themeChanged();
+
     protected:
         /**
          * Called when a request to save the state of the applet is made