From 08ec00c081ce51a924c65df3998657174f9428b6 Mon Sep 17 00:00:00 2001
From: Prasanth Ullattil <prasanth.ullattil@nokia.com>
Date: Tue, 16 Feb 2010 13:36:05 +0100
Subject: Reusing sheets on Mac OS X 10.5 & above shows painting artifacts.

Window modal dialogs are shown as sheets on Mac, reusing them is showing
some painting artificats. So make sure we create a new window everytime
a sheet is shown. This only applies to Carbon, the Cocoa versions dont
have this problem.

Task-number: QTBUG-8198
Reviewed-by: MortenS
---
 src/gui/kernel/qwidget_mac.mm | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/gui/kernel/qwidget_mac.mm b/src/gui/kernel/qwidget_mac.mm
index 0ce369d..9e642b9 100644
--- a/src/gui/kernel/qwidget_mac.mm
+++ b/src/gui/kernel/qwidget_mac.mm
@@ -3348,6 +3348,8 @@ void QWidgetPrivate::show_sys()
     bool realWindow = isRealWindow();
 #ifndef QT_MAC_USE_COCOA
     if (realWindow && !q->testAttribute(Qt::WA_Moved)) {
+        if (qt_mac_is_macsheet(q))
+            recreateMacWindow();
         q->createWinId();
         if (QWidget *p = q->parentWidget()) {
             p->createWinId();
-- 
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