/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Charts 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
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** information use the contact form at https://www.qt.io/contact-us.
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** 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
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****************************************************************************/

#include "charts.h"
#include <QtCharts/QChart>
#include <QtCharts/QPieSeries>

class DonutChart: public Chart
{
public:
    QString name() { return QObject::tr("DonutChart"); }
    QString category()  { return QObject::tr("PieSeries"); }
    QString subCategory() { return QString(); }

    QChart *createChart(const DataTable &table)
    {
        QChart *chart = new QChart();
        chart->setTitle("Donut chart");
        for (int i = 0, j = table.count(); i < table.count(); i++, j--) {
            QPieSeries *series = new QPieSeries(chart);
            foreach (Data data, table[i]) {
                QPieSlice *slice = series->append(data.second, data.first.y());
                if (data == table[i].first())
                    slice->setLabelVisible();
            }
            series->setPieSize(j / (qreal) table.count());
            if (j > 1)
                series->setHoleSize((j - 1) / (qreal) table.count() + 0.1);
            series->setHorizontalPosition(0.5);
            series->setVerticalPosition(0.5);
            chart->addSeries(series);
        }
        return chart;
    }
};

DECLARE_CHART(DonutChart)

