main.cpp Example File | Qt Charts 5.12.9

- Qt 5.12
- Qt Charts
- BarChart Example
- main.cpp Example File
- Qt Charts | Commercial or GPLv3

# main.cpp Example File

barchart/main.cpp

     /****************************************************************************
     **
     ** 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
     ** accordance with the commercial license agreement provided with the
     ** Software or, alternatively, in accordance with the terms contained in
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     **
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     ** Alternatively, this file may be used under the terms of the GNU
     ** General Public License version 3 or (at your option) any later version
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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/QBarSeries>
     #include <QtCharts/QBarSet>
     #include <QtCharts/QLegend>
     #include <QtCharts/QBarCategoryAxis>
     #include <QtCharts/QValueAxis>

     QT_CHARTS_USE_NAMESPACE

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

         QBarSet *set0 = new QBarSet("Jane");
         QBarSet *set1 = new QBarSet("John");
         QBarSet *set2 = new QBarSet("Axel");
         QBarSet *set3 = new QBarSet("Mary");
         QBarSet *set4 = new QBarSet("Samantha");

         *set0 << 1 << 2 << 3 << 4 << 5 << 6;
         *set1 << 5 << 0 << 0 << 4 << 0 << 7;
         *set2 << 3 << 5 << 8 << 13 << 8 << 5;
         *set3 << 5 << 6 << 7 << 3 << 4 << 5;
         *set4 << 9 << 7 << 5 << 3 << 1 << 2;

         QBarSeries *series = new QBarSeries();
         series->append(set0);
         series->append(set1);
         series->append(set2);
         series->append(set3);
         series->append(set4);

         QChart *chart = new QChart();
         chart->addSeries(series);
         chart->setTitle("Simple barchart example");
         chart->setAnimationOptions(QChart::SeriesAnimations);

         QStringList categories;
         categories << "Jan" << "Feb" << "Mar" << "Apr" << "May" << "Jun";
         QBarCategoryAxis *axisX = new QBarCategoryAxis();
         axisX->append(categories);
         chart->addAxis(axisX, Qt::AlignBottom);
         series->attachAxis(axisX);

         QValueAxis *axisY = new QValueAxis();
         axisY->setRange(0,15);
         chart->addAxis(axisY, Qt::AlignLeft);
         series->attachAxis(axisY);

         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(420, 300);
         window.show();

         return a.exec();
     }