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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <private/polarchartcategoryaxisradial_p.h>
#include <private/chartpresenter_p.h>
#include <private/abstractchartlayout_p.h>
#include <QtCharts/QCategoryAxis>
#include <QtCore/QDebug>
QT_BEGIN_NAMESPACE
PolarChartCategoryAxisRadial::PolarChartCategoryAxisRadial(QCategoryAxis *axis, QGraphicsItem *item)
: PolarChartAxisRadial(axis, item, true)
{
QObject::connect(axis, SIGNAL(categoriesChanged()), this, SLOT(handleCategoriesChanged()));
}
PolarChartCategoryAxisRadial::~PolarChartCategoryAxisRadial()
{
}
QList<qreal> PolarChartCategoryAxisRadial::calculateLayout() const
{
QCategoryAxis *catAxis = static_cast<QCategoryAxis *>(axis());
int tickCount = catAxis->categoriesLabels().size() + 1;
QList<qreal> points;
if (tickCount < 2)
return points;
qreal range = max() - min();
if (range > 0) {
points.resize(tickCount);
qreal scale = (axisGeometry().width() / 2) / range;
qreal angle;
for (int i = 0; i < tickCount; ++i) {
if (i < tickCount - 1)
angle = (catAxis->startValue(catAxis->categoriesLabels().at(i)) - min()) * scale;
else
angle = (catAxis->endValue(catAxis->categoriesLabels().at(i - 1)) - min()) * scale;
points[i] = angle;
}
}
return points;
}
void PolarChartCategoryAxisRadial::createAxisLabels(const QList<qreal> &layout)
{
Q_UNUSED(layout);
setLabels(static_cast<QCategoryAxis *>(axis())->categoriesLabels() << QString());
}
void PolarChartCategoryAxisRadial::handleCategoriesChanged()
{
QGraphicsLayoutItem::updateGeometry();
presenter()->layout()->invalidate();
}
QT_END_NAMESPACE
#include "moc_polarchartcategoryaxisradial_p.cpp"
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