Fixed bug in graphics effects caching of graphics item hierarchies.

Make sure to invalidate the cache if the transform of a sub-item
changes.

Reviewed-by: Bjørn Erik Nilsen

1 files changed, 9 insertions, 2 deletions

diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp
index b6820f7..fbfd8e6 100644
--- a/src/gui/graphicsview/qgraphicsitem.cpp
+++ b/src/gui/graphicsview/qgraphicsitem.cpp
@@ -7177,9 +7177,16 @@ void QGraphicsItem::prepareGeometryChange()
 
     QGraphicsItem *parent = this;
     while ((parent = parent->d_ptr->parent)) {
-        parent->d_ptr->dirtyChildrenBoundingRect = 1;
+        QGraphicsItemPrivate *parentp = parent->d_ptr.data();
+        parentp->dirtyChildrenBoundingRect = 1;
         // ### Only do this if the parent's effect applies to the entire subtree.
-        parent->d_ptr->notifyBoundingRectChanged = 1;
+        parentp->notifyBoundingRectChanged = 1;
+#ifndef QT_NO_GRAPHICSEFFECT
+        if (parentp->scene && parentp->graphicsEffect) {
+            parentp->notifyInvalidated = 1;
+            static_cast<QGraphicsItemEffectSourcePrivate *>(parentp->graphicsEffect->d_func()->source->d_func())->invalidateCache();
+        }
+#endif
     }
 }