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diff --git a/src/declarative/items/qsgcanvas_p.h b/src/declarative/items/qsgcanvas_p.h
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+++ b/src/declarative/items/qsgcanvas_p.h
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+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative 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 QSGCANVAS_P_H
+#define QSGCANVAS_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qsgitem.h"
+#include "qsgcanvas.h"
+#include <private/qdeclarativeguard_p.h>
+
+#include <private/qsgcontext_p.h>
+
+#include <QtCore/qthread.h>
+#include <QtCore/qmutex.h>
+#include <QtCore/qwaitcondition.h>
+#include <private/qwidget_p.h>
+#include <private/qgl_p.h>
+
+QT_BEGIN_NAMESPACE
+
+//Make it easy to identify and customize the root item if needed
+class QSGRootItem : public QSGItem
+{
+    Q_OBJECT
+public:
+    QSGRootItem();
+};
+
+class QSGCanvasPrivate;
+
+class QTouchEvent;
+class QSGCanvasPrivate : public QGLWidgetPrivate
+{
+public:
+    Q_DECLARE_PUBLIC(QSGCanvas)
+
+    static inline QSGCanvasPrivate *get(QSGCanvas *c) { return c->d_func(); }
+
+    QSGCanvasPrivate();
+    virtual ~QSGCanvasPrivate();
+
+    void init(QSGCanvas *);
+
+    QSGRootItem *rootItem;
+
+    QSGItem *activeFocusItem;
+    QSGItem *mouseGrabberItem;
+
+    // Mouse positions are saved in widget coordinates
+    QPoint lastMousePosition;
+    QPoint buttonDownPositions[5]; // Left, Right, Middle, XButton1, XButton2
+    void sceneMouseEventFromMouseEvent(QGraphicsSceneMouseEvent &, QMouseEvent *);
+    void translateTouchEvent(QTouchEvent *touchEvent);
+    static QEvent::Type sceneMouseEventTypeFromMouseEvent(QMouseEvent *);
+    static void sceneMouseEventForTransform(QGraphicsSceneMouseEvent &, const QTransform &);
+    static void transformTouchPoints(QList<QTouchEvent::TouchPoint> &touchPoints, const QTransform &transform);
+    bool deliverInitialMousePressEvent(QSGItem *, QGraphicsSceneMouseEvent *);
+    bool deliverMouseEvent(QGraphicsSceneMouseEvent *);
+    bool sendFilteredMouseEvent(QSGItem *, QSGItem *, QGraphicsSceneMouseEvent *);
+    bool deliverWheelEvent(QSGItem *, QGraphicsSceneWheelEvent *);
+    bool deliverTouchPoints(QSGItem *, QTouchEvent *, const QList<QTouchEvent::TouchPoint> &, QSet<int> *,
+            QHash<QSGItem *, QList<QTouchEvent::TouchPoint> > *);
+    bool deliverTouchEvent(QTouchEvent *);
+    void sceneHoverEventFromMouseEvent(QGraphicsSceneHoverEvent &, QMouseEvent *);
+    bool deliverHoverEvent(QSGItem *, QGraphicsSceneHoverEvent *);
+    void sendHoverEvent(QEvent::Type, QSGItem *, QGraphicsSceneHoverEvent *);
+    void clearHover();
+
+    void stopRenderingThread();
+
+    QDeclarativeGuard<QSGItem> hoverItem;
+    enum FocusOption {
+        DontChangeFocusProperty = 0x01,
+    };
+    Q_DECLARE_FLAGS(FocusOptions, FocusOption)
+
+    void setFocusInScope(QSGItem *scope, QSGItem *item, FocusOptions = 0);
+    void clearFocusInScope(QSGItem *scope, QSGItem *item, FocusOptions = 0);
+    void notifyFocusChangesRecur(QSGItem **item, int remaining);
+
+    void updateInputMethodData();
+
+    void dirtyItem(QSGItem *);
+    void cleanup(QSGNode *);
+
+    void initializeSceneGraph();
+    void polishItems();
+    void syncSceneGraph();
+    void renderSceneGraph();
+    void runThread();
+
+    void _q_animationStarted();
+    void _q_animationStopped();
+
+    QSGItem::UpdatePaintNodeData updatePaintNodeData;
+
+    QSGItem *dirtyItemList;
+    QList<QSGNode *> cleanupNodeList;
+
+    QSet<QSGItem *> itemsToPolish;
+
+    void updateDirtyNodes();
+    void cleanupNodes();
+    bool updateEffectiveOpacity(QSGItem *);
+    void updateEffectiveOpacityRoot(QSGItem *, qreal);
+    void updateDirtyNode(QSGItem *);
+
+    QSGContext *context;
+
+    uint contextInThread : 1;
+    uint threadedRendering : 1;
+    uint exitThread : 1;
+    uint animationRunning: 1;
+    uint idle : 1;              // Set to true when render thread sees no change and enters a wait()
+    uint needsRepaint : 1;      // Set by callback from render if scene needs repainting.
+    uint renderThreadAwakened : 1;
+    uint inSync: 1;
+
+    struct MyThread : public QThread {
+        MyThread(QSGCanvasPrivate *r) : renderer(r) {}
+        virtual void run() { renderer->runThread(); }
+        static void doWait() { QThread::msleep(16); }
+        QSGCanvasPrivate *renderer;
+    };
+    MyThread *thread;
+    QMutex mutex;
+    QWaitCondition wait;
+    QSize widgetSize;
+    QSize viewportSize;
+
+    QAnimationDriver *animationDriver;
+
+    QHash<int, QSGItem *> itemForTouchPointId;
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QSGCanvasPrivate::FocusOptions)
+
+QT_END_NAMESPACE
+
+#endif // QSGCANVAS_P_H