donutchart.cpp
55 lines
| 1.9 KiB
| text/x-c
|
CppLexer
Michal Klocek
|
r1865 | /**************************************************************************** | ||
** | ||||
** Copyright (C) 2012 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 Qt Commercial Charts Add-on. | ||||
** | ||||
** $QT_BEGIN_LICENSE$ | ||||
** Licensees holding valid Qt Commercial licenses may use this file in | ||||
** accordance with the Qt Commercial 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 | ||||
** $QT_END_LICENSE$ | ||||
** | ||||
****************************************************************************/ | ||||
#include "charts.h" | ||||
#include "qchart.h" | ||||
#include "qpieseries.h" | ||||
class DonutChart: public Chart | ||||
{ | ||||
public: | ||||
QString name() { return QObject::tr("DonutChart"); } | ||||
QString category() { return QObject::tr("PieSeries"); } | ||||
QString subCategory() { return QString::null; } | ||||
Jani Honkonen
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r2099 | QChart *createChart(const DataTable &table) | ||
Jani Honkonen
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r2130 | { | ||
Jani Honkonen
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r2099 | QChart *chart = new QChart(); | ||
Michal Klocek
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r1865 | chart->setTitle("Donut chart"); | ||
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r2099 | for (int i = 0, j = table.count(); i < table.count(); i++, j--) { | ||
Michal Klocek
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r1865 | QPieSeries *series = new QPieSeries(chart); | ||
foreach (Data data, table[i]) { | ||||
QPieSlice *slice = series->append(data.second, data.first.y()); | ||||
Jani Honkonen
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r2099 | if (data == table[i].first()) | ||
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r1865 | slice->setLabelVisible(); | ||
} | ||||
Jani Honkonen
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r2099 | series->setPieSize(j / (qreal) table.count()); | ||
if (j > 1) | ||||
series->setHoleSize((j - 1) / (qreal) table.count() + 0.1); | ||||
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r1865 | series->setHorizontalPosition(0.5); | ||
series->setVerticalPosition(0.5); | ||||
chart->addSeries(series); | ||||
} | ||||
return chart; | ||||
} | ||||
}; | ||||
DECLARE_CHART(DonutChart) | ||||