comparison panner.cpp @ 132:16ceeee30e2a

* Ensure panned rect stays current when size changes; update panner cache when scene changes

 
 void
 Panner::setScene(QGraphicsScene *s)
 {
     if (scene()) {
+        disconnect(scene(), SIGNAL(sceneChanged(const QList<QRectF> &)),
+                   this, SLOT(slotSceneChanged(const QList<QRectF> &)));
         disconnect(scene(), SIGNAL(sceneRectChanged(const QRectF &)),
                    this, SLOT(slotSceneRectChanged(const QRectF &)));
     }
     QGraphicsView::setScene(s);
     if (scene()) {
         QRectF r = sceneRect();
         DEBUG << "scene rect: " << r << ", my rect " << rect() << endl;
         fit(r);
     }
     m_cache = QPixmap();
+    connect(scene(), SIGNAL(sceneChanged(const QList<QRectF> &)),
+            this, SLOT(slotSceneChanged(const QList<QRectF> &)));
     connect(scene(), SIGNAL(sceneRectChanged(const QRectF &)),
             this, SLOT(slotSceneRectChanged(const QRectF &)));
 }
 
 void

 void
 Panner::slotSceneRectChanged(const QRectF &newRect)
 {
     if (!scene()) return; // spurious
     fit(newRect);
+    m_cache = QPixmap();
+    viewport()->update();
+}
+
+void
+Panner::slotSceneChanged(const QList<QRectF> &)
+{
+    if (!scene()) return; // spurious
     m_cache = QPixmap();
     viewport()->update();
 }
 
 void