/****************************************************************************
**
** Copyright (C) 2013 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
** $QT_END_LICENSE$
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****************************************************************************/

#include "polarchartvalueaxisangular_p.h"
#include "chartpresenter_p.h"
#include "abstractchartlayout_p.h"

QTCOMMERCIALCHART_BEGIN_NAMESPACE

PolarChartValueAxisAngular::PolarChartValueAxisAngular(QValueAxis *axis, QGraphicsItem *item)
    : PolarChartAxisAngular(axis, item)
{
    QObject::connect(axis, SIGNAL(tickCountChanged(int)), this, SLOT(handleTickCountChanged(int)));
    QObject::connect(axis, SIGNAL(labelFormatChanged(QString)), this, SLOT(handleLabelFormatChanged(QString)));
}

PolarChartValueAxisAngular::~PolarChartValueAxisAngular()
{
}

QVector<qreal> PolarChartValueAxisAngular::calculateLayout() const
{
    int tickCount = static_cast<QValueAxis *>(axis())->tickCount();
    Q_ASSERT(tickCount >= 2);

    QVector<qreal> points;
    points.resize(tickCount);

    const qreal d = 360.0 / qreal(tickCount - 1);

    for (int i = 0; i < tickCount; ++i) {
        qreal angularCoordinate = qreal(i) * d;
        points[i] = angularCoordinate;
    }

    return points;
}

void PolarChartValueAxisAngular::createAxisLabels(const QVector<qreal> &layout)
{
    QStringList labelList = createValueLabels(min(), max(), layout.size(), static_cast<QValueAxis *>(axis())->labelFormat());
    setLabels(labelList);
}

void PolarChartValueAxisAngular::handleTickCountChanged(int tick)
{
    Q_UNUSED(tick);
    QGraphicsLayoutItem::updateGeometry();
    if (presenter())
        presenter()->layout()->invalidate();
}

void PolarChartValueAxisAngular::handleLabelFormatChanged(const QString &format)
{
    Q_UNUSED(format);
    QGraphicsLayoutItem::updateGeometry();
    if (presenter())
        presenter()->layout()->invalidate();
}

#include "moc_polarchartvalueaxisangular_p.cpp"

QTCOMMERCIALCHART_END_NAMESPACE