SVN commit 1217825 by aseigo:

various cleanups


 M  +1 -1      containment.cpp  
 M  +4 -4      corona.cpp  
 M  +5 -2      extenders/extender.cpp  


--- trunk/KDE/kdelibs/plasma/containment.cpp #1217824:1217825
@@ -528,7 +528,7 @@
 
 Corona *Containment::corona() const
 {
-    return dynamic_cast<Corona*>(scene());
+    return qobject_cast<Corona*>(scene());
 }
 
 void Containment::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
--- trunk/KDE/kdelibs/plasma/corona.cpp #1217824:1217825
@@ -436,14 +436,14 @@
 QRect Corona::screenGeometry(int id) const
 {
     Q_UNUSED(id);
-    if (views().isEmpty()) {
-        return sceneRect().toRect();
-    } else {
-        QGraphicsView *v = views()[0];
+    QGraphicsView *v = views().value(0);
+    if (v) {
         QRect r = sceneRect().toRect();
         r.moveTo(v->mapToGlobal(QPoint(0, 0)));
         return r;
     }
+
+    return sceneRect().toRect();
 }
 
 QRegion Corona::availableScreenRegion(int id) const
--- trunk/KDE/kdelibs/plasma/extenders/extender.cpp #1217824:1217825
@@ -913,9 +913,12 @@
 {
     QRect screenRect;
     QSizeF size = mainWidget->effectiveSizeHint(Qt::PreferredSize);
-    if (applet && applet.data()->containment() && applet.data()->containment()->corona()) {
-        screenRect = applet.data()->containment()->corona()->screenGeometry(applet.data()->containment()->screen());
+    if (applet) {
+        Containment *containment = applet.data()->containment();
+        if (containment && containment->corona()) {
+            screenRect = containment->corona()->screenGeometry(containment->screen());
     }
+    }
     q->resize(qMin(screenRect.width()/3, (int)size.width()),
               qMin(screenRect.height()/3, (int)size.height()));
 }