/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Charts module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "declarativecategoryaxis_p.h"
#include <QtCore/QDebug>

QT_CHARTS_BEGIN_NAMESPACE

/*!
    \qmltype CategoryRange
    \inqmlmodule QtCharts

    \brief Defines a range on a category axis.

    The CategoryRange type is used together with the CategoryAxis type to
    specify labeled ranges on category axes. The widths of the category ranges
    can be specified freely.

    \sa CategoryAxis
*/

/*!
    \qmlproperty int CategoryRange::endValue
    The high end of the category.
*/

/*!
    \qmlproperty string CategoryRange::label
    The label of the category.
*/

DeclarativeCategoryRange::DeclarativeCategoryRange(QObject *parent) :
    QObject(parent),
    m_endValue(0),
    m_label(QString())
{
}

DeclarativeCategoryAxis::DeclarativeCategoryAxis(QObject *parent) :
    QCategoryAxis(parent),
    m_labelsPosition(AxisLabelsPositionCenter)
{
}

void DeclarativeCategoryAxis::classBegin()
{
}

void DeclarativeCategoryAxis::componentComplete()
{
    QList<QPair<QString, qreal> > ranges;
    foreach (QObject *child, children()) {
        if (qobject_cast<DeclarativeCategoryRange *>(child)) {
            DeclarativeCategoryRange *range = qobject_cast<DeclarativeCategoryRange *>(child);
            ranges.append(QPair<QString, qreal>(range->label(), range->endValue()));
        }
    }

    // Sort and append the range objects according to end value
    qSort(ranges.begin(), ranges.end(), endValueLessThan);
    for (int i(0); i < ranges.count(); i++)
        append(ranges.at(i).first, ranges.at(i).second);
}

bool DeclarativeCategoryAxis::endValueLessThan(const QPair<QString, qreal> &value1, const QPair<QString, qreal> &value2)
{
    return value1.second < value2.second;
}

QQmlListProperty<QObject> DeclarativeCategoryAxis::axisChildren()
{
    return QQmlListProperty<QObject>(this, 0, &DeclarativeCategoryAxis::appendAxisChildren ,0,0,0);
}

void DeclarativeCategoryAxis::append(const QString &label, qreal categoryEndValue)
{
    QCategoryAxis::append(label, categoryEndValue);
}

void DeclarativeCategoryAxis::remove(const QString &label)
{
    QCategoryAxis::remove(label);
}

void DeclarativeCategoryAxis::replace(const QString &oldLabel, const QString &newLabel)
{
    QCategoryAxis::replaceLabel(oldLabel, newLabel);
}

void DeclarativeCategoryAxis::appendAxisChildren(QQmlListProperty<QObject> *list, QObject *element)
{
    // Empty implementation; the children are parsed in componentComplete instead
    Q_UNUSED(list)
    Q_UNUSED(element)
}

DeclarativeCategoryAxis::AxisLabelsPosition DeclarativeCategoryAxis::labelsPosition() const
{
    return (DeclarativeCategoryAxis::AxisLabelsPosition) QCategoryAxis::labelsPosition();
}

void DeclarativeCategoryAxis::setLabelsPosition(AxisLabelsPosition position)
{
    if (position != m_labelsPosition) {
        QCategoryAxis::setLabelsPosition((QCategoryAxis::AxisLabelsPosition)position);
        emit labelsPositionChanged(position);
    }
}

QT_CHARTS_END_NAMESPACE

#include "moc_declarativecategoryaxis_p.cpp"
