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/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the Qt Charts module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:GPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 or (at your option) any later version
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** approved by the KDE Free Qt Foundation. The licenses are as published by
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** the Free Software Foundation and appearing in the file LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "charts.h"
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#include <QtCharts/QChart>
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#include <QtCharts/QAreaSeries>
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#include <QtCharts/QLineSeries>
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class AreaChart: public Chart
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{
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public:
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QString name() { return QObject::tr("AreaChart"); }
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QString category() { return QObject::tr("XYSeries"); }
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QString subCategory() { return QString::null; }
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QChart *createChart(const DataTable &table)
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{
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QChart *chart = new QChart();
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chart->setTitle("Area chart");
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// The lower series initialized to zero values
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QLineSeries *lowerSeries = 0;
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QString name("Series ");
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int nameIndex = 0;
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for (int i(0); i < table.count(); i++) {
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QLineSeries *upperSeries = new QLineSeries(chart);
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for (int j(0); j < table[i].count(); j++) {
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Data data = table[i].at(j);
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if (lowerSeries) {
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const QList<QPointF>& points = lowerSeries->points();
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upperSeries->append(QPointF(j, points[i].y() + data.first.y()));
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} else {
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upperSeries->append(QPointF(j, data.first.y()));
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}
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}
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QAreaSeries *area = new QAreaSeries(upperSeries, lowerSeries);
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area->setName(name + QString::number(nameIndex));
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nameIndex++;
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chart->addSeries(area);
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chart->createDefaultAxes();
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lowerSeries = upperSeries;
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}
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return chart;
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}
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};
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DECLARE_CHART(AreaChart)
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