1 files changed, 98 insertions, 0 deletions
diff --git a/src/plugins/platforms/cocoa/qcocoabackingstore.mm b/src/plugins/platforms/cocoa/qcocoabackingstore.mm
new file mode 100644
index 0000000000..1a25608a7a
--- /dev/null
+++ b/src/plugins/platforms/cocoa/qcocoabackingstore.mm
@@ -0,0 +1,98 @@
+/****************************************************************************
+**
+** 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qcocoabackingstore.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;
+}
+
+QCocoaBackingStore::QCocoaBackingStore(QWindow *window)
+    : QPlatformBackingStore(window)
+{
+    m_cocoaWindow = static_cast<QCocoaWindow *>(window->handle());
+
+    const QRect geo = window->geometry();
+    NSRect rect = NSMakeRect(geo.x(),geo.y(),geo.width(),geo.height());
+
+    m_image = new QImage(window->geometry().size(),QImage::Format_ARGB32);
+}
+
+QCocoaBackingStore::~QCocoaBackingStore()
+{
+    delete m_image;
+}
+
+QPaintDevice *QCocoaBackingStore::paintDevice()
+{
+    return m_image;
+}
+
+void QCocoaBackingStore::flush(QWindow *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_cocoaWindow->m_windowSurfaceView displayRect:rect];
+}
+
+void QCocoaBackingStore::resize(const QSize &size, const QRegion &)
+{
+    delete m_image;
+    m_image = new QImage(size,QImage::Format_ARGB32_Premultiplied);
+    NSSize newSize = NSMakeSize(size.width(),size.height());
+    [static_cast<QNSView *>(m_cocoaWindow->m_windowSurfaceView) setImage:m_image];
+}
+
+QT_END_NAMESPACE