From fa27da4d5c1858e181fd492044d78c7fdabb8650 Mon Sep 17 00:00:00 2001
From: Laurent Rineau <Laurent.Rineau__CGAL@normalesup.org>
Date: Wed, 15 Oct 2008 15:17:12 +0000
Subject: [PATCH] Normalize the bounding rect, so that its height is non
 negative if the y axis has been turned upside down.

---
 GraphicsView/src/CGALQt4/utility.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/GraphicsView/src/CGALQt4/utility.cpp b/GraphicsView/src/CGALQt4/utility.cpp
index d9ec6c6b20c..417e205e059 100644
--- a/GraphicsView/src/CGALQt4/utility.cpp
+++ b/GraphicsView/src/CGALQt4/utility.cpp
@@ -41,6 +41,7 @@ QRectF viewportsBbox(const QGraphicsScene* scene) {
    {
      rect |= mapToScene(view, view->viewport()->rect());
    }
+   rect = rect.normalized();
    return rect;
 }