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diff --git a/examples/datavisualization/customproxy/rainfallgraph.h b/examples/datavisualization/customproxy/rainfallgraph.h
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+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the QtDataVisualization module.
+**
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+**
+****************************************************************************/
+
+#ifndef RAINFALLGRAPH_H
+#define RAINFALLGRAPH_H
+
+#include "variantbardataproxy.h"
+#include <QtDataVisualization/q3dbars.h>
+
+using namespace QtDataVisualization;
+
+class RainfallGraph : public QObject
+{
+ Q_OBJECT
+public:
+ explicit RainfallGraph(Q3DBars *rainfall);
+ ~RainfallGraph();
+
+ void addDataSet();
+ void start();
+
+private:
+
+ void updateYearsList(int start, int end);
+ Q3DBars *m_graph;
+ int m_columnCount;
+ int m_rowCount;
+ QStringList m_years;
+ QStringList m_numericMonths;
+ VariantBarDataProxy *m_proxy;
+ VariantBarDataMapping *m_mapping;
+ VariantDataSet *m_dataSet;
+};
+
+
+#endif