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/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc
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** All rights reserved.
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** For any questions to Digia, please use contact form at http://qt.digia.com
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**
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** This file is part of the Qt Commercial Charts Add-on.
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**
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** $QT_BEGIN_LICENSE$
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia.
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**
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** If you have questions regarding the use of this file, please use
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** contact form at http://qt.digia.com
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "polarchartcategoryaxisangular_p.h"
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#include "chartpresenter_p.h"
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#include "abstractchartlayout_p.h"
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#include "qcategoryaxis.h"
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#include <QDebug>
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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PolarChartCategoryAxisAngular::PolarChartCategoryAxisAngular(QCategoryAxis *axis, QGraphicsItem *item)
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: PolarChartAxisAngular(axis, item, true)
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{
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QObject::connect(axis, SIGNAL(categoriesChanged()), this, SLOT(handleCategoriesChanged()));
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}
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PolarChartCategoryAxisAngular::~PolarChartCategoryAxisAngular()
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{
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}
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QVector<qreal> PolarChartCategoryAxisAngular::calculateLayout() const
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{
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QCategoryAxis *catAxis = static_cast<QCategoryAxis *>(axis());
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int tickCount = catAxis->categoriesLabels().count() + 1;
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QVector<qreal> points;
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if (tickCount < 2)
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return points;
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qreal range = max() - min();
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if (range > 0) {
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points.resize(tickCount);
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qreal scale = 360.0 / range;
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qreal angle;
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for (int i = 0; i < tickCount; ++i) {
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if (i < tickCount - 1)
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angle = (catAxis->startValue(catAxis->categoriesLabels().at(i)) - min()) * scale;
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else
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angle = (catAxis->endValue(catAxis->categoriesLabels().at(i - 1)) - min()) * scale;
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points[i] = angle;
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}
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}
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return points;
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}
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void PolarChartCategoryAxisAngular::createAxisLabels(const QVector<qreal> &layout)
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{
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Q_UNUSED(layout);
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setLabels(static_cast<QCategoryAxis *>(axis())->categoriesLabels() << "");
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}
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void PolarChartCategoryAxisAngular::handleCategoriesChanged()
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{
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QGraphicsLayoutItem::updateGeometry();
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presenter()->layout()->invalidate();
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}
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#include "moc_polarchartcategoryaxisangular_p.cpp"
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QTCOMMERCIALCHART_END_NAMESPACE
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