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diff --git a/src/quick/particles/qquickturbulence_p.h b/src/quick/particles/qquickturbulence_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 Declarative module 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef TURBULENCEAFFECTOR_H
+#define TURBULENCEAFFECTOR_H
+#include "qquickparticleaffector_p.h"
+#include <QDeclarativeListProperty>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+class QQuickParticlePainter;
+
+class QQuickTurbulenceAffector : public QQuickParticleAffector
+{
+    Q_OBJECT
+    Q_PROPERTY(qreal strength READ strength WRITE setStrength NOTIFY strengthChanged)
+    Q_PROPERTY(QUrl noiseSource READ noiseSource WRITE setNoiseSource NOTIFY noiseSourceChanged)
+    public:
+    explicit QQuickTurbulenceAffector(QQuickItem *parent = 0);
+    ~QQuickTurbulenceAffector();
+    virtual void affectSystem(qreal dt);
+
+    qreal strength() const
+    {
+        return m_strength;
+    }
+
+    QUrl noiseSource() const
+    {
+        return m_noiseSource;
+    }
+signals:
+
+    void strengthChanged(qreal arg);
+
+    void noiseSourceChanged(QUrl arg);
+
+public slots:
+
+    void setStrength(qreal arg)
+    {
+        if (m_strength != arg) {
+            m_strength = arg;
+            emit strengthChanged(arg);
+        }
+    }
+
+    void setNoiseSource(QUrl arg)
+    {
+        if (m_noiseSource != arg) {
+            m_noiseSource = arg;
+            emit noiseSourceChanged(arg);
+            initializeGrid();
+        }
+    }
+
+protected:
+    virtual void geometryChanged(const QRectF &newGeometry,
+                                 const QRectF &oldGeometry);
+private:
+    void ensureInit();
+    void mapUpdate();
+    void initializeGrid();
+    qreal boundsRespectingField(int x, int y);
+    qreal m_strength;
+    qreal m_lastT;
+    int m_gridSize;
+    qreal** m_field;
+    QPointF** m_vectorField;
+    bool m_inited;
+    QUrl m_noiseSource;
+};
+
+QT_END_NAMESPACE
+QT_END_HEADER
+#endif // TURBULENCEAFFECTOR_H