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diff --git a/src/gui/image/qpixmapcache_p.h b/src/gui/image/qpixmapcache_p.h
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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 QtGui module 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QPIXMAPCACHE_P_H
+#define QPIXMAPCACHE_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API. This header
+// file may change from version to version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qpixmapcache.h"
+#include "qpaintengine.h"
+#include <private/qimage_p.h>
+#include <private/qpixmap_raster_p.h>
+#include "qcache.h"
+
+QT_BEGIN_NAMESPACE
+
+uint qHash(const QPixmapCache::Key &k);
+
+class QPixmapCache::KeyData
+{
+public:
+    KeyData() : isValid(true), key(0), ref(1) {}
+    KeyData(const KeyData &other)
+     : isValid(other.isValid), key(other.key), ref(1) {}
+    ~KeyData() {}
+
+    bool isValid;
+    int key;
+    int ref;
+};
+
+// XXX: hw: is this a general concept we need to abstract?
+class QPixmapCacheEntry : public QPixmap
+{
+public:
+    QPixmapCacheEntry(const QPixmapCache::Key &key, const QPixmap &pix) : QPixmap(pix), key(key)
+    {
+        QPixmapData *pd = pixmapData();
+        if (pd && pd->classId() == QPixmapData::RasterClass) {
+            QRasterPixmapData *d = static_cast<QRasterPixmapData*>(pd);
+            if (!d->image.isNull() && d->image.d->paintEngine
+                && !d->image.d->paintEngine->isActive())
+            {
+                delete d->image.d->paintEngine;
+                d->image.d->paintEngine = 0;
+            }
+        }
+    }
+    ~QPixmapCacheEntry();
+    QPixmapCache::Key key;
+};
+
+inline bool qIsDetached(QPixmapCacheEntry &t) { return t.isDetached(); }
+
+QT_END_NAMESPACE
+
+#endif // QPIXMAPCACHE_P_H