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diff --git a/examples/opengl/2dpainting/helper.cpp b/examples/opengl/2dpainting/helper.cpp
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+++ b/examples/opengl/2dpainting/helper.cpp
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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 examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+#include "helper.h"
+
+//! [0]
+Helper::Helper()
+{
+    QLinearGradient gradient(QPointF(50, -20), QPointF(80, 20));
+    gradient.setColorAt(0.0, Qt::white);
+    gradient.setColorAt(1.0, QColor(0xa6, 0xce, 0x39));
+
+    background = QBrush(QColor(64, 32, 64));
+    circleBrush = QBrush(gradient);
+    circlePen = QPen(Qt::black);
+    circlePen.setWidth(1);
+    textPen = QPen(Qt::white);
+    textFont.setPixelSize(50);
+}
+//! [0]
+
+//! [1]
+void Helper::paint(QPainter *painter, QPaintEvent *event, int elapsed)
+{
+    painter->fillRect(event->rect(), background);
+    painter->translate(100, 100);
+//! [1]
+
+//! [2]
+    painter->save();
+    painter->setBrush(circleBrush);
+    painter->setPen(circlePen);
+    painter->rotate(elapsed * 0.030);
+
+    qreal r = elapsed/1000.0;
+    int n = 30;
+    for (int i = 0; i < n; ++i) {
+        painter->rotate(30);
+        qreal radius = 0 + 120.0*((i+r)/n);
+        qreal circleRadius = 1 + ((i+r)/n)*20;
+        painter->drawEllipse(QRectF(radius, -circleRadius,
+                                    circleRadius*2, circleRadius*2));
+    }
+    painter->restore();
+//! [2]
+
+//! [3]
+    painter->setPen(textPen);
+    painter->setFont(textFont);
+    painter->drawText(QRect(-50, -50, 100, 100), Qt::AlignCenter, "Qt");
+}
+//! [3]