main.cpp Example File

donutbreakdown/main.cpp
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 #include <QtWidgets/QApplication>
 #include <QtWidgets/QMainWindow>
 #include <QtWidgets/QStatusBar>
 #include <QtCharts/QChartView>
 #include "donutbreakdownchart.h"

 QT_CHARTS_USE_NAMESPACE

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

     // Graph is based on data of 'Total consumption of energy increased by 10 per cent in 2010'
     // Statistics Finland, 13 December 2011
     // http://www.stat.fi/til/ekul/2010/ekul_2010_2011-12-13_tie_001_en.html

     QPieSeries *series1 = new QPieSeries();
     series1->setName("Fossil fuels");
     series1->append("Oil", 353295);
     series1->append("Coal", 188500);
     series1->append("Natural gas", 148680);
     series1->append("Peat", 94545);

     QPieSeries *series2 = new QPieSeries();
     series2->setName("Renewables");
     series2->append("Wood fuels", 319663);
     series2->append("Hydro power", 45875);
     series2->append("Wind power", 1060);

     QPieSeries *series3 = new QPieSeries();
     series3->setName("Others");
     series3->append("Nuclear energy", 238789);
     series3->append("Import energy", 37802);
     series3->append("Other", 32441);

     DonutBreakdownChart *donutBreakdown = new DonutBreakdownChart();
     donutBreakdown->setAnimationOptions(QChart::AllAnimations);
     donutBreakdown->setTitle("Total consumption of energy in Finland 2010");
     donutBreakdown->legend()->setAlignment(Qt::AlignRight);
     donutBreakdown->addBreakdownSeries(series1, Qt::red);
     donutBreakdown->addBreakdownSeries(series2, Qt::darkGreen);
     donutBreakdown->addBreakdownSeries(series3, Qt::darkBlue);

     QMainWindow window;
     QChartView *chartView = new QChartView(donutBreakdown);
     chartView->setRenderHint(QPainter::Antialiasing);
     window.setCentralWidget(chartView);
     window.resize(800, 500);
     window.show();

     return a.exec();
 }