Qt 5.11 | Qt Charts | Donut Chart Breakdown Example | mainslice.cpp Example File

Qt Charts | Commercial or GPLv3

# mainslice.cpp Example File

donutbreakdown/mainslice.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 "mainslice.h"

      QT_CHARTS_USE_NAMESPACE

      MainSlice::MainSlice(QPieSeries *breakdownSeries, QObject *parent)
          : QPieSlice(parent),
            m_breakdownSeries(breakdownSeries)
      {
          connect(this, &MainSlice::percentageChanged, this, &MainSlice::updateLabel);
      }

      QPieSeries *MainSlice::breakdownSeries() const
      {
          return m_breakdownSeries;
      }

      void MainSlice::setName(QString name)
      {
          m_name = name;
      }

      QString MainSlice::name() const
      {
          return m_name;
      }

      void MainSlice::updateLabel()
      {
          this->setLabel(QString("%1 %2%").arg(m_name).arg(percentage() * 100, 0, 'f', 2));
      }

      #include "moc_mainslice.cpp"