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diff --git a/examples/datavisualization/bars/graphmodifier.h b/examples/datavisualization/bars/graphmodifier.h
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-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Data Visualization module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:GPL$
-** 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 https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3 or (at your option) any later version
-** approved by the KDE Free Qt Foundation. The licenses are as published by
-** the Free Software Foundation and appearing in the file LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef GRAPHMODIFIER_H
-#define GRAPHMODIFIER_H
-
-#include <QtDataVisualization/q3dbars.h>
-#include <QtDataVisualization/qbardataproxy.h>
-#include <QtDataVisualization/qabstract3dseries.h>
-
-#include <QtGui/QFont>
-#include <QtCore/QDebug>
-#include <QtCore/QStringList>
-#include <QtCore/QPointer>
-#include <QtCore/QPropertyAnimation>
-
-class GraphModifier : public QObject
-{
-    Q_OBJECT
-public:
-    explicit GraphModifier(Q3DBars *bargraph);
-    ~GraphModifier();
-
-    void resetTemperatureData();
-    void changePresetCamera();
-    void changeLabelBackground();
-    void changeFont(const QFont &font);
-    void changeFontSize(int fontsize);
-    void rotateX(int rotation);
-    void rotateY(int rotation);
-    void setBackgroundEnabled(int enabled);
-    void setGridEnabled(int enabled);
-    void setSmoothBars(int smooth);
-    void setSeriesVisibility(int enabled);
-    void setReverseValueAxis(int enabled);
-    void setReflection(bool enabled);
-
-public Q_SLOTS:
-    void changeRange(int range);
-    void changeStyle(int style);
-    void changeSelectionMode(int selectionMode);
-    void changeTheme(int theme);
-    void changeShadowQuality(int quality);
-    void shadowQualityUpdatedByVisual(QAbstract3DGraph::ShadowQuality shadowQuality);
-    void changeLabelRotation(int rotation);
-    void setAxisTitleVisibility(bool enabled);
-    void setAxisTitleFixed(bool enabled);
-    void zoomToSelectedBar();
-
-Q_SIGNALS:
-    void shadowQualityChanged(int quality);
-    void backgroundEnabledChanged(bool enabled);
-    void gridEnabledChanged(bool enabled);
-    void fontChanged(QFont font);
-    void fontSizeChanged(int size);
-
-private:
-    Q3DBars *m_graph;
-    float m_xRotation;
-    float m_yRotation;
-    int m_fontSize;
-    int m_segments;
-    int m_subSegments;
-    float m_minval;
-    float m_maxval;
-    QStringList m_months;
-    QStringList m_years;
-    QValue3DAxis *m_temperatureAxis;
-    QCategory3DAxis *m_yearAxis;
-    QCategory3DAxis *m_monthAxis;
-    QBar3DSeries *m_primarySeries;
-    QBar3DSeries *m_secondarySeries;
-    QAbstract3DSeries::Mesh m_barMesh;
-    bool m_smooth;
-    QPropertyAnimation m_animationCameraX;
-    QPropertyAnimation m_animationCameraY;
-    QPropertyAnimation m_animationCameraZoom;
-    QPropertyAnimation m_animationCameraTarget;
-    float m_defaultAngleX;
-    float m_defaultAngleY;
-    float m_defaultZoom;
-    QVector3D m_defaultTarget;
-};
-
-#endif