1 files changed, 5 insertions, 1 deletions
diff --git a/src/gui/painting/qbackingstore.cpp b/src/gui/painting/qbackingstore.cpp
index fdbdef0..5321ce2 100644
--- a/src/gui/painting/qbackingstore.cpp
+++ b/src/gui/painting/qbackingstore.cpp
@@ -832,6 +832,10 @@ QWidgetBackingStore::QWidgetBackingStore(QWidget *topLevel)
 
 QWidgetBackingStore::~QWidgetBackingStore()
 {
+    for (int c = 0; c < dirtyWidgets.size(); ++c) {
+        resetWidget(dirtyWidgets.at(c));
+    }
+
     delete windowSurface;
     windowSurface = 0;
     delete dirtyOnScreenWidgets;
@@ -843,7 +847,7 @@ QWidgetBackingStore::~QWidgetBackingStore()
 void QWidgetPrivate::moveRect(const QRect &rect, int dx, int dy)
 {
     Q_Q(QWidget);
-    if (!q->isVisible())
+    if (!q->isVisible() || (dx == 0 && dy == 0))
         return;
 
     QWidget *tlw = q->window();