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diff --git a/src/plugins/platforms/cocoa/qcocoawindowsurface.mm b/src/plugins/platforms/cocoa/qcocoawindowsurface.mm
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+++ b/src/plugins/platforms/cocoa/qcocoawindowsurface.mm
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qcocoawindowsurface.h"
+
+#include <QtCore/qdebug.h>
+
+#include <QtGui/QPainter>
+
+QT_BEGIN_NAMESPACE
+
+QRect flipedRect(const QRect &sourceRect,int height)
+{
+    if (!sourceRect.isValid())
+        return QRect();
+    QRect flippedRect = sourceRect;
+    flippedRect.moveTop(height - sourceRect.y());
+    return flippedRect;
+}
+
+QCocoaWindowSurface::QCocoaWindowSurface(QWidget *window, WId wId)
+    : QWindowSurface(window)
+{
+    m_cocoaWindow = static_cast<QCocoaWindow *>(window->platformWindow());
+
+    const QRect geo = window->geometry();
+    NSRect rect = NSMakeRect(geo.x(),geo.y(),geo.width(),geo.height());
+    m_contentView = [[QNSView alloc] initWithWidget:window];
+    m_cocoaWindow->setContentView(m_contentView);
+
+    m_image = new QImage(window->size(),QImage::Format_ARGB32);
+}
+
+QCocoaWindowSurface::~QCocoaWindowSurface()
+{
+    delete m_image;
+}
+
+QPaintDevice *QCocoaWindowSurface::paintDevice()
+{
+    return m_image;
+}
+
+void QCocoaWindowSurface::flush(QWidget *widget, const QRegion &region, const QPoint &offset)
+{
+    Q_UNUSED(widget);
+    Q_UNUSED(offset);
+
+    QRect geo = region.boundingRect();
+
+    NSRect rect = NSMakeRect(geo.x(), geo.y(), geo.width(), geo.height());
+    [m_contentView displayRect:rect];
+}
+
+void QCocoaWindowSurface::resize(const QSize &size)
+{
+    QWindowSurface::resize(size);
+    delete m_image;
+    m_image = new QImage(size,QImage::Format_ARGB32_Premultiplied);
+    NSSize newSize = NSMakeSize(size.width(),size.height());
+    [m_contentView setImage:m_image];
+
+}
+
+QT_END_NAMESPACE