From 625dadcc9b88dccebf607b84089ab960740b94f2 Mon Sep 17 00:00:00 2001
From: Andreas Aardal Hanssen <andreas.aardal.hanssen@nokia.com>
Date: Wed, 17 Jun 2009 14:36:55 +0200
Subject: Don't lose all the items when we switch item index method.

Readd the items to the new index.

Reviewed-by: Alexis
---
 src/gui/graphicsview/qgraphicsscene.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/gui/graphicsview/qgraphicsscene.cpp b/src/gui/graphicsview/qgraphicsscene.cpp
index dacfc87..36af30d 100644
--- a/src/gui/graphicsview/qgraphicsscene.cpp
+++ b/src/gui/graphicsview/qgraphicsscene.cpp
@@ -1535,11 +1535,14 @@ void QGraphicsScene::setItemIndexMethod(ItemIndexMethod method)
 
     d->indexMethod = method;
 
+    QList<QGraphicsItem *> oldItems = d->index->items();
     delete d->index;
     if (method == BspTreeIndex)
         d->index = new QGraphicsSceneBspTreeIndex(this);
     else
         d->index = new QGraphicsSceneLinearIndex(this);
+    for (int i = 0; i < oldItems.size(); ++i)
+        d->index->addItem(oldItems.at(i));
 }
 
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