/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd
** All rights reserved.
** For any questions to The Qt Company, please use contact form at http://qt.io
**
** This file is part of the Qt Charts module.
**
** Licensees holding valid commercial license for Qt may use this file in
** accordance with the Qt License Agreement provided with the Software
** or, alternatively, in accordance with the terms contained in a written
** agreement between you and The Qt Company.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.io
**
****************************************************************************/

#include <QtCharts/QBarLegendMarker>
#include <private/qbarlegendmarker_p.h>
#include <QtCharts/QAbstractBarSeries>
#include <QtCharts/QBarSet>

QT_CHARTS_BEGIN_NAMESPACE

/*!
    \class QBarLegendMarker
    \inmodule Qt Charts
    \brief QLegendMarker subclass for bar series.
    \mainclass

    QBarLegendMarker is related to QAbstractBarSeries derived classes. With bar series, each marker is related to one QBarSet.

    \sa QLegend, QAbstractBarSeries, QBarSet
*/

/*!
  \fn virtual LegendMarkerType QBarLegendMarker::type()
  Returns QLegendMarker::LegendMarkerTypeBar
*/

/*!
  \internal
  Constructor
*/
QBarLegendMarker::QBarLegendMarker(QAbstractBarSeries *series, QBarSet *barset, QLegend *legend, QObject *parent) :
    QLegendMarker(*new QBarLegendMarkerPrivate(this,series,barset,legend), parent)
{
    d_ptr->updated();
}

/*!
  Desturctor
*/
QBarLegendMarker::~QBarLegendMarker()
{
}

/*!
    \internal
*/
QBarLegendMarker::QBarLegendMarker(QBarLegendMarkerPrivate &d, QObject *parent) :
    QLegendMarker(d, parent)
{
}

/*!
  Returns the related series of marker
*/
QAbstractBarSeries *QBarLegendMarker::series()
{
    Q_D(QBarLegendMarker);
    return d->m_series;
}

/*!
  Returns the related barset of marker
*/
QBarSet* QBarLegendMarker::barset()
{
    Q_D(QBarLegendMarker);
    return d->m_barset;
}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

QBarLegendMarkerPrivate::QBarLegendMarkerPrivate(QBarLegendMarker *q, QAbstractBarSeries *series, QBarSet *barset, QLegend *legend) :
    QLegendMarkerPrivate(q,legend),
    q_ptr(q),
    m_series(series),
    m_barset(barset)
{
    QObject::connect(m_barset, SIGNAL(penChanged()), this, SLOT(updated()));
    QObject::connect(m_barset, SIGNAL(labelChanged()), this, SLOT(updated()));
    QObject::connect(m_barset, SIGNAL(brushChanged()), this, SLOT(updated()));
}

QBarLegendMarkerPrivate::~QBarLegendMarkerPrivate()
{
}

QAbstractBarSeries* QBarLegendMarkerPrivate::series()
{
    return m_series;
}

QObject* QBarLegendMarkerPrivate::relatedObject()
{
    return m_barset;
}

void QBarLegendMarkerPrivate::updated()
{
    bool labelChanged = false;
    bool brushChanged = false;
    bool penChanged = false;

    if (!m_customPen && (m_item->pen() != m_barset->pen())) {
        m_item->setPen(m_barset->pen());
        penChanged = true;
    }
    if (!m_customBrush && (m_item->brush() != m_barset->brush())) {
        m_item->setBrush(m_barset->brush());
        brushChanged = true;
    }
    if (!m_customLabel && (m_item->label() != m_barset->label())) {
        m_item->setLabel(m_barset->label());
        labelChanged = true;
    }
    invalidateLegend();

    if (labelChanged)
        emit q_ptr->labelChanged();
    if (brushChanged)
        emit q_ptr->brushChanged();
    if (penChanged)
        emit q_ptr->penChanged();
}

#include "moc_qbarlegendmarker.cpp"
#include "moc_qbarlegendmarker_p.cpp"

QT_CHARTS_END_NAMESPACE