main.cpp Example File

piechart/main.cpp
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 #include <QtWidgets/QApplication>
 #include <QtWidgets/QMainWindow>
 #include <QtCharts/QChartView>
 #include <QtCharts/QPieSeries>
 #include <QtCharts/QPieSlice>

 QT_CHARTS_USE_NAMESPACE

 int main(int argc, char *argv[])
 {
     QApplication a(argc, argv);

     QPieSeries *series = new QPieSeries();
     series->append("Jane", 1);
     series->append("Joe", 2);
     series->append("Andy", 3);
     series->append("Barbara", 4);
     series->append("Axel", 5);

     QPieSlice *slice = series->slices().at(1);
     slice->setExploded();
     slice->setLabelVisible();
     slice->setPen(QPen(Qt::darkGreen, 2));
     slice->setBrush(Qt::green);

     QChart *chart = new QChart();
     chart->addSeries(series);
     chart->setTitle("Simple piechart example");
     chart->legend()->hide();

     QChartView *chartView = new QChartView(chart);
     chartView->setRenderHint(QPainter::Antialiasing);

     QMainWindow window;
     window.setCentralWidget(chartView);
     window.resize(400, 300);
     window.show();

     return a.exec();
 }