From ef8da487a84ef93636220b1ef89b3fc21cca7b49 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B8rgen=20Lind?= <jorgen.lind@nokia.com>
Date: Tue, 15 Nov 2011 15:02:03 +0100
Subject: [PATCH] Adding a "helper assert" for when you can create QWindow
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maybe if your trying to instansiate a QWindow before the QApplication has
been instansiated.

Change-Id: I68ed4ad1dbdfedc242a7cb27c1381d50a3d3dfa4
Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>
---
 src/gui/kernel/qwindow.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/gui/kernel/qwindow.cpp b/src/gui/kernel/qwindow.cpp
index c2a698ef9b..069764e545 100644
--- a/src/gui/kernel/qwindow.cpp
+++ b/src/gui/kernel/qwindow.cpp
@@ -64,6 +64,11 @@ QWindow::QWindow(QScreen *targetScreen)
     d->screen = targetScreen;
     if (!d->screen)
         d->screen = QGuiApplication::primaryScreen();
+
+    //if your applications aborts here, then chances are your creating a QWindow before the
+    //screen list is populated.
+    Q_ASSERT(d->screen);
+
     QGuiApplicationPrivate::window_list.prepend(this);
 }