main.cpp Example File | Qt Charts 5.7

Qt 5.7 | Qt Charts | Piechart Example | main.cpp Example File

Qt 5.7.1 Reference Documentation

# main.cpp Example File

piechart/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
      ** a written agreement between you and The Qt Company. For licensing terms
      ** and conditions see https://www.qt.io/terms-conditions. For further
      ** information use the contact form at https://www.qt.io/contact-us.
      **
      ** GNU General Public License Usage
      ** Alternatively, this file may be used under the terms of the GNU
      ** General Public License version 3 or (at your option) any later version
      ** approved by the KDE Free Qt Foundation. The licenses are as published by
      ** the Free Software Foundation and appearing in the file LICENSE.GPL3
      ** included in the packaging of this file. Please review the following
      ** information to ensure the GNU General Public License requirements will
      ** be met: https://www.gnu.org/licenses/gpl-3.0.html.
      **
      ** $QT_END_LICENSE$
      **
      ****************************************************************************/

      #include <QtWidgets/QApplication>
      #include <QtWidgets/QMainWindow>
      #include <QtCharts/QChartView>
      #include <QtCharts/QPieSeries>
      #include <QtCharts/QPieSlice>

      QT_CHARTS_USE_NAMESPACE

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

          QPieSeries *series = new QPieSeries();
          series->append("Jane", 1);
          series->append("Joe", 2);
          series->append("Andy", 3);
          series->append("Barbara", 4);
          series->append("Axel", 5);

          QPieSlice *slice = series->slices().at(1);
          slice->setExploded();
          slice->setLabelVisible();
          slice->setPen(QPen(Qt::darkGreen, 2));
          slice->setBrush(Qt::green);

          QChart *chart = new QChart();
          chart->addSeries(series);
          chart->setTitle("Simple piechart example");
          chart->legend()->hide();

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

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

          return a.exec();
      }