|
|
/****************************************************************************
|
|
|
**
|
|
|
** 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
|
|
|
** 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.
|
|
|
**
|
|
|
** $QT_END_LICENSE$
|
|
|
**
|
|
|
****************************************************************************/
|
|
|
|
|
|
#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::null; }
|
|
|
|
|
|
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)
|
|
|
|
|
|
|
