libqt5-qtbase/Make-sure-theres-a-scene-before-using-it.patch

From: Albert Astals Cid <albert.astals@canonical.com>
Date: Tue, 17 Feb 2015 08:53:27 +0000
Subject: Make sure there's a scene before using it
X-Git-Url: http://quickgit.kde.org/?p=qt%2Fqtbase.git&a=commitdiff&h=8fccfef424e7d2b7a2019b1f828234145d4011df
---
Make sure there's a scene before using it

Fixes crash hovering links in quassel

Task-number: QTBUG-44509
Change-Id: I77d8d9118ad185ed70a46e91445e2960200e562b
Reviewed-by: Michael Brüning <michael.bruning@theqtcompany.com>
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@theqtcompany.com>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
---


--- a/src/widgets/kernel/qwidget.cpp
+++ b/src/widgets/kernel/qwidget.cpp
@@ -12272,7 +12272,7 @@
 {
 #ifndef QT_NO_GRAPHICSVIEW
     Q_D(const QWidget);
-    if (d->extra && d->extra->proxyWidget) {
+    if (d->extra && d->extra->proxyWidget && d->extra->proxyWidget->scene()) {
         const QList <QGraphicsView *> views = d->extra->proxyWidget->scene()->views();
         if (!views.isEmpty()) {
             const QPointF scenePos = d->extra->proxyWidget->mapToScene(pos);
@@ -12307,7 +12307,7 @@
 {
 #ifndef QT_NO_GRAPHICSVIEW
     Q_D(const QWidget);
-    if (d->extra && d->extra->proxyWidget) {
+    if (d->extra && d->extra->proxyWidget && d->extra->proxyWidget->scene()) {
         const QList <QGraphicsView *> views = d->extra->proxyWidget->scene()->views();
         if (!views.isEmpty()) {
             const QPoint viewPortPos = views.first()->viewport()->mapFromGlobal(pos);