From 70b384721053d6d8d96b18a95bd27097f1556c89 Mon Sep 17 00:00:00 2001
From: "Aaron J. Seigo" <aseigo@kde.org>
Date: Mon, 5 Oct 2009 22:44:08 +0000
Subject: [PATCH] make moving between items with different parents work a bit
 better ;)

svn path=/trunk/KDE/kdelibs/; revision=1031762
---
 widgets/itembackground.cpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/widgets/itembackground.cpp b/widgets/itembackground.cpp
index 17cc4b444..f0cdb86c0 100644
--- a/widgets/itembackground.cpp
+++ b/widgets/itembackground.cpp
@@ -166,7 +166,15 @@ void ItemBackground::setTargetItem(QGraphicsItem *target)
     d->target = target;
     if (target) {
         setZValue(target->zValue() - 1);
-        setParentItem(target->parentItem());
+        if (parentItem() != target->parentItem()) {
+            QTransform t = transform();
+            setTransform(QTransform());
+            QRectF geom = mapToScene(geometry()).boundingRect();
+            setParentItem(target->parentItem());
+            setGeometry(mapFromScene(geom).boundingRect());
+            setTransform(t);
+        }
+
         QRectF rect = target->boundingRect();
         rect.moveTopLeft(target->pos());
         setTarget(rect);