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"