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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the Qt Enterprise Charts Add-on.
**
** $QT_BEGIN_LICENSE$
** Licensees holding valid Qt Enterprise licenses may use this file in
** accordance with the Qt Enterprise License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
** $QT_END_LICENSE$
**
****************************************************************************/
#include "polarchartcategoryaxisangular_p.h"
#include "chartpresenter_p.h"
#include "abstractchartlayout_p.h"
#include "qcategoryaxis.h"
#include <QDebug>
QTCOMMERCIALCHART_BEGIN_NAMESPACE
PolarChartCategoryAxisAngular::PolarChartCategoryAxisAngular(QCategoryAxis *axis, QGraphicsItem *item)
: PolarChartAxisAngular(axis, item, true)
{
QObject::connect(axis, SIGNAL(categoriesChanged()), this, SLOT(handleCategoriesChanged()));
}
PolarChartCategoryAxisAngular::~PolarChartCategoryAxisAngular()
{
}
QVector<qreal> PolarChartCategoryAxisAngular::calculateLayout() const
{
QCategoryAxis *catAxis = static_cast<QCategoryAxis *>(axis());
int tickCount = catAxis->categoriesLabels().count() + 1;
QVector<qreal> points;
if (tickCount < 2)
return points;
qreal range = max() - min();
if (range > 0) {
points.resize(tickCount);
qreal scale = 360.0 / 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 PolarChartCategoryAxisAngular::createAxisLabels(const QVector<qreal> &layout)
{
Q_UNUSED(layout);
setLabels(static_cast<QCategoryAxis *>(axis())->categoriesLabels() << "");
}
void PolarChartCategoryAxisAngular::handleCategoriesChanged()
{
QGraphicsLayoutItem::updateGeometry();
presenter()->layout()->invalidate();
}
#include "moc_polarchartcategoryaxisangular_p.cpp"
QTCOMMERCIALCHART_END_NAMESPACE
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