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3** Copyright (C) 2016 The Qt Company Ltd.
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6** This file is part of the Qt Charts module of the Qt Toolkit.
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29
30#include "mainslice.h"
31
32QT_CHARTS_USE_NAMESPACE
33
34//![1]
35MainSlice::MainSlice(QPieSeries *breakdownSeries, QObject *parent)
36 : QPieSlice(parent),
37 m_breakdownSeries(breakdownSeries)
38{
39 connect(sender: this, signal: &MainSlice::percentageChanged, receiver: this, slot: &MainSlice::updateLabel);
40}
41//![1]
42
43QPieSeries *MainSlice::breakdownSeries() const
44{
45 return m_breakdownSeries;
46}
47
48void MainSlice::setName(QString name)
49{
50 m_name = name;
51}
52
53QString MainSlice::name() const
54{
55 return m_name;
56}
57
58//![2]
59void MainSlice::updateLabel()
60{
61 this->setLabel(QString("%1 %2%").arg(a: m_name).arg(a: percentage() * 100, fieldWidth: 0, fmt: 'f', prec: 2));
62}
63//![2]
64
65#include "moc_mainslice.cpp"
66
67

source code of qtcharts/examples/charts/donutbreakdown/mainslice.cpp