Merge branch '4.6' of scm.dev.nokia.troll.no:qt/qt into 4.6

2 files changed, 9 insertions, 3 deletions

diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp
index 709f6f3..fbb9115 100644
--- a/src/gui/kernel/qwidget.cpp
+++ b/src/gui/kernel/qwidget.cpp
@@ -8248,7 +8248,8 @@ bool QWidget::event(QEvent *event)
             QList<QObject*> childList = d->children;
             for (int i = 0; i < childList.size(); ++i) {
                 QObject *o = childList.at(i);
-                QApplication::sendEvent(o, event);
+                if (o)
+                    QApplication::sendEvent(o, event);
             }
         }
         update();
@@ -8277,7 +8278,7 @@ bool QWidget::event(QEvent *event)
             QList<QObject*> childList = d->children;
             for (int i = 0; i < childList.size(); ++i) {
                 QObject *o = childList.at(i);
-                if (o != QApplication::activeModalWidget()) {
+                if (o && o != QApplication::activeModalWidget()) {
                     if (qobject_cast<QWidget *>(o) && static_cast<QWidget *>(o)->isWindow()) {
                         // do not forward the event to child windows,
                         // QApplication does this for us
diff --git a/src/gui/kernel/qwidget_x11.cpp b/src/gui/kernel/qwidget_x11.cpp
index 7461637..0bc9cbc 100644
--- a/src/gui/kernel/qwidget_x11.cpp
+++ b/src/gui/kernel/qwidget_x11.cpp
@@ -527,8 +527,13 @@ void QWidgetPrivate::create_sys(WId window, bool initializeWindow, bool destroyO
         QX11InfoData *xd = &X11->screens[qt_x11_create_desktop_on_screen];
         xinfo.setX11Data(xd);
     } else if (parentXinfo && (parentXinfo->screen() != xinfo.screen()
-                               || parentXinfo->visual() != xinfo.visual()))
+                               || (parentXinfo->visual() != xinfo.visual()
+                                   && !q->inherits("QGLWidget"))))
     {
+        // QGLWidgets have to be excluded here as they have a
+        // specially crafted QX11Info structure which can't be swapped
+        // out with the parent widgets QX11Info. The parent visual,
+        // for instance, might not even be GL capable.
         xinfo = *parentXinfo;
     }