1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the Qt Charts module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:GPL$
9** Commercial License Usage
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18** Alternatively, this file may be used under the terms of the GNU
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21** the Free Software Foundation and appearing in the file LICENSE.GPL3
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28****************************************************************************/
29
30#include <QtWidgets/QApplication>
31#include <QtWidgets/QMainWindow>
32#include <QtCharts/QChartView>
33#include <QtCharts/QPieSeries>
34#include <QtCharts/QPieSlice>
35
36QT_CHARTS_USE_NAMESPACE
37
38int main(int argc, char *argv[])
39{
40 QApplication a(argc, argv);
41
42//![1]
43 QPieSeries *series = new QPieSeries();
44 series->append(label: "Jane", value: 1);
45 series->append(label: "Joe", value: 2);
46 series->append(label: "Andy", value: 3);
47 series->append(label: "Barbara", value: 4);
48 series->append(label: "Axel", value: 5);
49//![1]
50
51//![2]
52 QPieSlice *slice = series->slices().at(i: 1);
53 slice->setExploded();
54 slice->setLabelVisible();
55 slice->setPen(QPen(Qt::darkGreen, 2));
56 slice->setBrush(Qt::green);
57//![2]
58
59//![3]
60 QChart *chart = new QChart();
61 chart->addSeries(series);
62 chart->setTitle("Simple piechart example");
63 chart->legend()->hide();
64//![3]
65
66//![4]
67 QChartView *chartView = new QChartView(chart);
68 chartView->setRenderHint(hint: QPainter::Antialiasing);
69//![4]
70
71//![5]
72 QMainWindow window;
73 window.setCentralWidget(chartView);
74 window.resize(w: 400, h: 300);
75 window.show();
76//![5]
77
78 return a.exec();
79}
80

source code of qtcharts/examples/charts/piechart/main.cpp