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diff --git a/src/gui/math3d/qvector2d.h b/src/gui/math3d/qvector2d.h
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QVECTOR2D_H
+#define QVECTOR2D_H
+
+#include <QtCore/qpoint.h>
+#include <QtCore/qmetatype.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Gui)
+
+class QVector3D;
+class QVector4D;
+
+#ifndef QT_NO_VECTOR2D
+
+class Q_GUI_EXPORT QVector2D
+{
+public:
+    QVector2D();
+    QVector2D(qreal xpos, qreal ypos);
+    explicit QVector2D(const QPoint& point);
+    explicit QVector2D(const QPointF& point);
+#ifndef QT_NO_VECTOR3D
+    explicit QVector2D(const QVector3D& vector);
+#endif
+#ifndef QT_NO_VECTOR4D
+    explicit QVector2D(const QVector4D& vector);
+#endif
+
+    bool isNull() const;
+
+    qreal x() const;
+    qreal y() const;
+
+    void setX(qreal x);
+    void setY(qreal y);
+
+    qreal length() const;
+    qreal lengthSquared() const;
+
+    QVector2D normalized() const;
+    void normalize();
+
+    QVector2D &operator+=(const QVector2D &vector);
+    QVector2D &operator-=(const QVector2D &vector);
+    QVector2D &operator*=(qreal factor);
+    QVector2D &operator*=(const QVector2D &vector);
+    QVector2D &operator/=(qreal divisor);
+
+    static qreal dotProduct(const QVector2D& v1, const QVector2D& v2);
+
+    friend inline bool operator==(const QVector2D &v1, const QVector2D &v2);
+    friend inline bool operator!=(const QVector2D &v1, const QVector2D &v2);
+    friend inline const QVector2D operator+(const QVector2D &v1, const QVector2D &v2);
+    friend inline const QVector2D operator-(const QVector2D &v1, const QVector2D &v2);
+    friend inline const QVector2D operator*(qreal factor, const QVector2D &vector);
+    friend inline const QVector2D operator*(const QVector2D &vector, qreal factor);
+    friend inline const QVector2D operator*(const QVector2D &v1, const QVector2D &v2);
+    friend inline const QVector2D operator-(const QVector2D &vector);
+    friend inline const QVector2D operator/(const QVector2D &vector, qreal divisor);
+
+    friend inline bool qFuzzyCompare(const QVector2D& v1, const QVector2D& v2);
+
+#ifndef QT_NO_VECTOR3D
+    QVector3D toVector3D() const;
+#endif
+#ifndef QT_NO_VECTOR4D
+    QVector4D toVector4D() const;
+#endif
+
+    QPoint toPoint() const;
+    QPointF toPointF() const;
+
+private:
+    float xp, yp;
+
+    QVector2D(float xpos, float ypos, int dummy);
+
+    friend class QVector3D;
+    friend class QVector4D;
+};
+
+inline QVector2D::QVector2D() : xp(0.0f), yp(0.0f) {}
+
+inline QVector2D::QVector2D(float xpos, float ypos, int) : xp(xpos), yp(ypos) {}
+
+inline QVector2D::QVector2D(qreal xpos, qreal ypos) : xp(xpos), yp(ypos) {}
+
+inline QVector2D::QVector2D(const QPoint& point) : xp(point.x()), yp(point.y()) {}
+
+inline QVector2D::QVector2D(const QPointF& point) : xp(point.x()), yp(point.y()) {}
+
+inline bool QVector2D::isNull() const
+{
+    return qIsNull(xp) && qIsNull(yp);
+}
+
+inline qreal QVector2D::x() const { return qreal(xp); }
+inline qreal QVector2D::y() const { return qreal(yp); }
+
+inline void QVector2D::setX(qreal x) { xp = x; }
+inline void QVector2D::setY(qreal y) { yp = y; }
+
+inline QVector2D &QVector2D::operator+=(const QVector2D &vector)
+{
+    xp += vector.xp;
+    yp += vector.yp;
+    return *this;
+}
+
+inline QVector2D &QVector2D::operator-=(const QVector2D &vector)
+{
+    xp -= vector.xp;
+    yp -= vector.yp;
+    return *this;
+}
+
+inline QVector2D &QVector2D::operator*=(qreal factor)
+{
+    xp *= factor;
+    yp *= factor;
+    return *this;
+}
+
+inline QVector2D &QVector2D::operator*=(const QVector2D &vector)
+{
+    xp *= vector.xp;
+    yp *= vector.yp;
+    return *this;
+}
+
+inline QVector2D &QVector2D::operator/=(qreal divisor)
+{
+    xp /= divisor;
+    yp /= divisor;
+    return *this;
+}
+
+inline bool operator==(const QVector2D &v1, const QVector2D &v2)
+{
+    return v1.xp == v2.xp && v1.yp == v2.yp;
+}
+
+inline bool operator!=(const QVector2D &v1, const QVector2D &v2)
+{
+    return v1.xp != v2.xp || v1.yp != v2.yp;
+}
+
+inline const QVector2D operator+(const QVector2D &v1, const QVector2D &v2)
+{
+    return QVector2D(v1.xp + v2.xp, v1.yp + v2.yp, 1);
+}
+
+inline const QVector2D operator-(const QVector2D &v1, const QVector2D &v2)
+{
+    return QVector2D(v1.xp - v2.xp, v1.yp - v2.yp, 1);
+}
+
+inline const QVector2D operator*(qreal factor, const QVector2D &vector)
+{
+    return QVector2D(vector.xp * factor, vector.yp * factor, 1);
+}
+
+inline const QVector2D operator*(const QVector2D &vector, qreal factor)
+{
+    return QVector2D(vector.xp * factor, vector.yp * factor, 1);
+}
+
+inline const QVector2D operator*(const QVector2D &v1, const QVector2D &v2)
+{
+    return QVector2D(v1.xp * v2.xp, v1.yp * v2.yp, 1);
+}
+
+inline const QVector2D operator-(const QVector2D &vector)
+{
+    return QVector2D(-vector.xp, -vector.yp, 1);
+}
+
+inline const QVector2D operator/(const QVector2D &vector, qreal divisor)
+{
+    return QVector2D(vector.xp / divisor, vector.yp / divisor, 1);
+}
+
+inline bool qFuzzyCompare(const QVector2D& v1, const QVector2D& v2)
+{
+    return qFuzzyCompare(v1.xp, v2.xp) && qFuzzyCompare(v1.yp, v2.yp);
+}
+
+inline QPoint QVector2D::toPoint() const
+{
+    return QPoint(qRound(xp), qRound(yp));
+}
+
+inline QPointF QVector2D::toPointF() const
+{
+    return QPointF(qreal(xp), qreal(yp));
+}
+
+#ifndef QT_NO_DEBUG_STREAM
+Q_GUI_EXPORT QDebug operator<<(QDebug dbg, const QVector2D &vector);
+#endif
+
+#endif
+
+QT_END_NAMESPACE
+
+#ifndef QT_NO_VECTOR2D
+Q_DECLARE_METATYPE(QVector2D)
+#endif
+
+QT_END_HEADER
+
+#endif