main.cpp Example File

  /****************************************************************************
  **
  ** Copyright (C) 2016 The Qt Company Ltd.
  ** Contact: https://www.qt.io/licensing/
  **
  ** This file is part of the Qt Charts module of the Qt Toolkit.
  **
  ** $QT_BEGIN_LICENSE:GPL$
  ** Commercial License Usage
  ** Licensees holding valid commercial Qt licenses may use this file in
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  ** Alternatively, this file may be used under the terms of the GNU
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  ** the Free Software Foundation and appearing in the file LICENSE.GPL3
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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();
  }