main.cpp Example File

boxplotchart/main.cpp
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 ** 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/QBoxPlotSeries>
 #include <QtCharts/QBoxSet>
 #include <QtCharts/QLegend>
 #include <QtCharts/QBarCategoryAxis>
 #include <QtCore/QFile>

 #include "boxdatareader.h"

 QT_CHARTS_USE_NAMESPACE

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

     QBoxPlotSeries *acmeSeries = new QBoxPlotSeries();
     acmeSeries->setName("Acme Ltd");

     QBoxPlotSeries *boxWhiskSeries = new QBoxPlotSeries();
     boxWhiskSeries->setName("BoxWhisk Inc");

     QFile acmeData(":acme");
     if (!acmeData.open(QIODevice::ReadOnly | QIODevice::Text))
         return 1;

     BoxDataReader dataReader(&acmeData);
     while (!dataReader.atEnd()) {
         QBoxSet *set = dataReader.readBox();
         if (set)
             acmeSeries->append(set);
     }

     QFile boxwhiskData(":boxwhisk");
     if (!boxwhiskData.open(QIODevice::ReadOnly | QIODevice::Text))
         return 1;

     dataReader.readFile(&boxwhiskData);
     while (!dataReader.atEnd()) {
         QBoxSet *set = dataReader.readBox();
         if (set)
             boxWhiskSeries->append(set);
     }

     QChart *chart = new QChart();
     chart->addSeries(acmeSeries);
     chart->addSeries(boxWhiskSeries);
     chart->setTitle("Acme Ltd and BoxWhisk Inc share deviation in 2012");
     chart->setAnimationOptions(QChart::SeriesAnimations);

     chart->createDefaultAxes();
     chart->axes(Qt::Vertical).first()->setMin(15.0);
     chart->axes(Qt::Horizontal).first()->setMax(34.0);

     chart->legend()->setVisible(true);
     chart->legend()->setAlignment(Qt::AlignBottom);

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

     QMainWindow window;
     window.setCentralWidget(chartView);
     window.resize(800, 600);
     window.show();

     return a.exec();
 }