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3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
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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 "drilldownslice.h"
31
32QT_CHARTS_USE_NAMESPACE
33
34DrilldownSlice::DrilldownSlice(qreal value, QString prefix, QAbstractSeries *drilldownSeries)
35 : m_drilldownSeries(drilldownSeries),
36 m_prefix(prefix)
37{
38 setValue(value);
39 updateLabel();
40 setLabelFont(QFont("Arial", 8));
41 connect(sender: this, signal: &DrilldownSlice::percentageChanged, receiver: this, slot: &DrilldownSlice::updateLabel);
42 connect(sender: this, signal: &DrilldownSlice::hovered, receiver: this, slot: &DrilldownSlice::showHighlight);
43}
44
45DrilldownSlice::~DrilldownSlice()
46{
47
48}
49
50QAbstractSeries *DrilldownSlice::drilldownSeries() const
51{
52 return m_drilldownSeries;
53}
54
55void DrilldownSlice::updateLabel()
56{
57 QString label = m_prefix;
58 label += " $";
59 label += QString::number(this->value());
60 label += ", ";
61 label += QString::number(this->percentage() * 100, f: 'f', prec: 1);
62 label += "%";
63 setLabel(label);
64}
65
66void DrilldownSlice::showHighlight(bool show)
67{
68 setLabelVisible(show);
69 setExploded(show);
70}
71
72#include "moc_drilldownslice.cpp"
73

source code of qtcharts/examples/charts/piechartdrilldown/drilldownslice.cpp