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diff --git a/src/extras/Private/qquickmathutils.cpp b/src/extras/Private/qquickmathutils.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Quick Extras module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later 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 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qquickmathutils_p.h"
+
+#include <qmath.h>
+
+QQuickMathUtils::QQuickMathUtils(QObject *parent) :
+    QObject(parent)
+{
+}
+
+qreal QQuickMathUtils::pi2() const
+{
+    return M_PI * 2;
+}
+
+/*!
+    Converts the angle \a degrees to radians.
+*/
+qreal QQuickMathUtils::degToRad(qreal degrees) const {
+    return degrees * (M_PI / 180);
+}
+
+/*!
+    Converts the angle \a degrees to radians.
+
+    This function assumes that the angle origin (0) is north, as this
+    is the origin used by all of the Extras. The angle
+    returned will have its angle origin (0) pointing east, in order to be
+    consistent with standard angles used by \l {QtQuick::Canvas}{Canvas},
+    for example.
+*/
+qreal QQuickMathUtils::degToRadOffset(qreal degrees) const {
+    return (degrees - 90) * (M_PI / 180);
+}
+
+/*!
+    Converts the angle \a radians to degrees.
+*/
+qreal QQuickMathUtils::radToDeg(qreal radians) const {
+    return radians * (180 / M_PI);
+}
+
+/*!
+    Converts the angle \a radians to degrees.
+
+    This function assumes that the angle origin (0) is east; as is standard for
+    mathematical operations using radians (this origin is used by
+    \l {QtQuick::Canvas}{Canvas}, for example). The angle returned in degrees
+    will have its angle origin (0) pointing north, which is what the extras
+    expect.
+*/
+qreal QQuickMathUtils::radToDegOffset(qreal radians) const {
+    return radians * (180 / M_PI) + 90;
+}
+
+/*!
+    Returns the top left position of the item if it were centered along
+    a circle according to \a angleOnCircle and \a distanceAlongRadius.
+
+    \a angleOnCircle is from 0.0 - M_PI2.
+    \a distanceAlongRadius is the distance along the radius in M_PIxels.
+*/
+QPointF QQuickMathUtils::centerAlongCircle(qreal xCenter, qreal yCenter,
+    qreal width, qreal height, qreal angleOnCircle, qreal distanceAlongRadius) const {
+    return QPointF(
+        (xCenter - width / 2) + (distanceAlongRadius * cos(angleOnCircle)),
+        (yCenter - height / 2) + (distanceAlongRadius * sin(angleOnCircle)));
+}
+
+/*!
+    Returns \a number rounded to the nearest even integer.
+*/
+qreal QQuickMathUtils::roundEven(qreal number) const {
+    int rounded = qRound(number);
+    return rounded % 2 == 0 ? rounded : rounded + 1;
+}