main.cpp Example File

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  ** Copyright (C) 2016 The Qt Company Ltd.
  ** Contact: https://www.qt.io/licensing/
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  ** This file is part of the Qt Charts module of the Qt Toolkit.
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  #include <QtWidgets/QApplication>
  #include <QtWidgets/QMainWindow>
  #include <QtCharts/QChartView>
  #include <QtCharts/QPieSeries>
  #include <QtCharts/QPieSlice>
  #include <QtCore/QDebug>
  QT_CHARTS_USE_NAMESPACE

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

      QPieSeries *series = new QPieSeries();
      series->setHoleSize(0.35);
      series->append("Protein 4.2%", 4.2);
      QPieSlice *slice = series->append("Fat 15.6%", 15.6);
      slice->setExploded();
      slice->setLabelVisible();
      series->append("Other 23.8%", 23.8);
      series->append("Carbs 56.4%", 56.4);

      QChartView *chartView = new QChartView();
      chartView->setRenderHint(QPainter::Antialiasing);
      chartView->chart()->setTitle("Donut with a lemon glaze (100g)");
      chartView->chart()->addSeries(series);
      chartView->chart()->legend()->setAlignment(Qt::AlignBottom);
      chartView->chart()->setTheme(QChart::ChartThemeBlueCerulean);
      chartView->chart()->legend()->setFont(QFont("Arial", 7));

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

      return a.exec();
  }