/****************************************************************************
**
** Copyright (C) 2014 Digia Plc
** All rights reserved.
** For any questions to Digia, 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 Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.io
**
****************************************************************************/

#include <QtCharts/QPieLegendMarker>
#include <private/qpielegendmarker_p.h>
#include <QtCharts/QPieSeries>
#include <QtCharts/QPieSlice>

QT_CHARTS_BEGIN_NAMESPACE

/*!
    \class QPieLegendMarker
    \inmodule Qt Charts
    \brief QLegendMarker subclass for pie series.
    \mainclass

    QPieLegendMarker is related to QPieSeries. With QPieSeries, each slice of pie is related to one marker in QLegend.

    \sa QLegend, QPieSeries, QPieSlice
*/

/*!
  \fn virtual LegendMarkerType QPieLegendMarker::type()
  Returns QLegendMarker::LegendMarkerTypePie
*/

/*!
  \internal
*/
QPieLegendMarker::QPieLegendMarker(QPieSeries *series, QPieSlice *slice, QLegend *legend, QObject *parent) :
    QLegendMarker(*new QPieLegendMarkerPrivate(this,series,slice,legend), parent)
{
    d_ptr->updated();
}

/*!
  Destructor
*/
QPieLegendMarker::~QPieLegendMarker()
{
}

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

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

/*!
  Returns the related slice of marker.
*/
QPieSlice* QPieLegendMarker::slice()
{
    Q_D(QPieLegendMarker);
    return d->m_slice;
}

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

QPieLegendMarkerPrivate::QPieLegendMarkerPrivate(QPieLegendMarker *q, QPieSeries *series, QPieSlice *slice, QLegend *legend) :
    QLegendMarkerPrivate(q,legend),
    q_ptr(q),
    m_series(series),
    m_slice(slice)
{
    QObject::connect(m_slice, SIGNAL(labelChanged()), this, SLOT(updated()));
    QObject::connect(m_slice, SIGNAL(brushChanged()), this, SLOT(updated()));
    QObject::connect(m_slice, SIGNAL(penChanged()), this, SLOT(updated()));
}

QPieLegendMarkerPrivate::~QPieLegendMarkerPrivate()
{
}

QPieSeries* QPieLegendMarkerPrivate::series()
{
    return m_series;
}

QObject* QPieLegendMarkerPrivate::relatedObject()
{
    return m_slice;
}

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

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

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

#include "moc_qpielegendmarker.cpp"
#include "moc_qpielegendmarker_p.cpp"

QT_CHARTS_END_NAMESPACE