From cc68474a7802453bd4ddd07bbfabba77aa27aae9 Mon Sep 17 00:00:00 2001
From: Yimgo <yimgo@yimgo.fr>
Date: Fri, 3 Aug 2012 15:43:25 +0200
Subject: [PATCH] Segfault when quitting after tool widget deletion fixed.

Fix is obvious but it probably hides something.
---
 src/frameworks/UBCoreGraphicsScene.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/frameworks/UBCoreGraphicsScene.cpp b/src/frameworks/UBCoreGraphicsScene.cpp
index 00c77ebb..8c526a65 100644
--- a/src/frameworks/UBCoreGraphicsScene.cpp
+++ b/src/frameworks/UBCoreGraphicsScene.cpp
@@ -32,7 +32,7 @@ UBCoreGraphicsScene::~UBCoreGraphicsScene()
     //we must delete removed items that are no more in any scene
     foreach (const QGraphicsItem* item, mItemsToDelete)
     {
-        if (item->scene()==NULL || item->scene() == this)
+        if (item && (item->scene() == NULL || item->scene() == this))
         {
             delete item;
         }
@@ -61,6 +61,7 @@ void UBCoreGraphicsScene::removeItem(QGraphicsItem* item, bool forceDelete)
     {
         mItemsToDelete.remove(item);
         delete item;
+        item = 0;
     }
 }
 
@@ -84,6 +85,7 @@ bool UBCoreGraphicsScene::deleteItem(QGraphicsItem* item)
 
         mItemsToDelete.remove(item);
         delete item;
+        item = 0;
         return true;
     }
     else