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// Copyright (C) 2024 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "piegraph.h"
#include <QRandomGenerator>
PieGraph::PieGraph(QObject *parent)
{
Q_UNUSED(parent)
//! [0]
m_pieSeries = new QPieSeries;
fillSliceInfo();
for (int i = 1; i < 5; ++i) {
QPieSlice *slice = new QPieSlice;
slice->setValue(m_sliceInfo.value.at(QRandomGenerator::global()->bounded(0, 6)));
slice->setLabel(m_sliceInfo.label.at(QRandomGenerator::global()->bounded(0, 6)));
slice->setLabelColor(m_sliceInfo.color.at(QRandomGenerator::global()->bounded(0, 6)));
m_pieSeries->append(slice);
}
m_pieSeries->setLabelsVisible(true);
//! [0]
}
PieGraph::~PieGraph()
{
delete m_pieSeries;
}
QPieSeries *PieGraph::pieSeries() const
{
return m_pieSeries;
}
void PieGraph::appendSlice()
{
//! [1]
QPieSlice *slice = new QPieSlice;
slice->setValue(m_sliceInfo.value.at(QRandomGenerator::global()->bounded(0, 6)));
slice->setLabel(m_sliceInfo.label.at(QRandomGenerator::global()->bounded(0, 6)));
slice->setLabelColor(m_sliceInfo.color.at(QRandomGenerator::global()->bounded(0, 6)));
slice->setLabelVisible(true);
m_pieSeries->append(slice);
//! [1]
}
void PieGraph::removeSlice()
{
m_pieSeries->remove(m_pieSeries->count() - 1);
}
void PieGraph::explodeSlices()
{
for (auto slice: m_pieSeries->slices()) {
if (slice->isExploded())
slice->setExploded(false);
else
slice->setExploded(true);
}
}
void PieGraph::clearSeries()
{
m_pieSeries->clear();
}
void PieGraph::fillSliceInfo()
{
m_sliceInfo.value = {
10,
15,
20,
25,
30,
35
};
m_sliceInfo.label = {
"Strawberry",
"Blueberry",
"Raspberry",
"Grape",
"Banana",
"Melon"
};
m_sliceInfo.color = {
"white",
"red",
"green",
"blue",
"grey",
"yellow"
};
}
void PieGraph::onAddSlice()
{
appendSlice();
}
void PieGraph::onRemoveSlice()
{
removeSlice();
}
void PieGraph::onExplode()
{
explodeSlices();
}
void PieGraph::onClearSeries()
{
clearSeries();
}
void PieGraph::setPieSeries(QPieSeries *series)
{
if (m_pieSeries != series) {
m_pieSeries = series;
emit pieSeriesChanged();
}
}