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diff --git a/examples/painting/concentriccircles/window.cpp b/examples/painting/concentriccircles/window.cpp
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+++ b/examples/painting/concentriccircles/window.cpp
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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 examples 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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+#include "circlewidget.h"
+#include "window.h"
+
+//! [0]
+Window::Window()
+{
+    aliasedLabel = createLabel(tr("Aliased"));
+    antialiasedLabel = createLabel(tr("Antialiased"));
+    intLabel = createLabel(tr("Int"));
+    floatLabel = createLabel(tr("Float"));
+
+    QGridLayout *layout = new QGridLayout;
+    layout->addWidget(aliasedLabel, 0, 1);
+    layout->addWidget(antialiasedLabel, 0, 2);
+    layout->addWidget(intLabel, 1, 0);
+    layout->addWidget(floatLabel, 2, 0);
+//! [0]
+
+//! [1]
+    QTimer *timer = new QTimer(this);
+
+    for (int i = 0; i < 2; ++i) {
+        for (int j = 0; j < 2; ++j) {
+            circleWidgets[i][j] = new CircleWidget;
+            circleWidgets[i][j]->setAntialiased(j != 0);
+            circleWidgets[i][j]->setFloatBased(i != 0);
+
+            connect(timer, SIGNAL(timeout()),
+                    circleWidgets[i][j], SLOT(nextAnimationFrame()));
+
+            layout->addWidget(circleWidgets[i][j], i + 1, j + 1);
+        }
+    }
+//! [1] //! [2]
+    timer->start(100);
+    setLayout(layout);
+
+    setWindowTitle(tr("Concentric Circles"));
+}
+//! [2]
+
+//! [3]
+QLabel *Window::createLabel(const QString &text)
+{
+    QLabel *label = new QLabel(text);
+    label->setAlignment(Qt::AlignCenter);
+    label->setMargin(2);
+    label->setFrameStyle(QFrame::Box | QFrame::Sunken);
+    return label;
+}
+//! [3]