#include "qxyseries.h"

QTCOMMERCIALCHART_BEGIN_NAMESPACE

/*!
    \class QXYSeries
    \brief The QXYSeries class is a base class for line, spline and scatter series.
*/

/*!
   \fn QPen QXYSeries::pen() const
   \brief  Returns pen used to draw points for series.
    \sa setPen()
*/

/*!
   \fn QBrush QXYSeries::brush() const
   \brief  Returns brush used to draw points for series.
    \sa setBrush()
*/

/*!
    \fn void QXYSeries::clicked(const QPointF& point)
    \brief Signal is emitted when user clicks the \a point on chart.
*/

/*!
    \fn void QXYSeries::pointReplaced(int index)
    \brief \internal \a index
*/

/*!
    \fn void QXYSeries::pointAdded(int index)
    \brief \internal \a index
*/

/*!
    \fn void QXYSeries::pointRemoved(int index)
    \brief \internal \a index
*/

/*!
    \fn void QXYSeries::updated()
    \brief \internal
*/

/*!
    Constructs empty series object which is a child of \a parent.
    When series object is added to QChartView or QChart instance ownerships is transfered.
*/
QXYSeries::QXYSeries(QObject* parent):QSeries(parent)
{
    m_mapX = -1;
    m_mapY = -1;
    m_mapOrientation = Qt::Vertical;
    //    m_mapYOrientation = Qt::Vertical;
}
/*!
    Destroys the object. Series added to QChartView or QChart instances are owned by those,
    and are deleted when mentioned object are destroyed.
*/
QXYSeries::~QXYSeries()
{
}

/*!
    Adds data point \a x \a y to the series. Points are connected with lines on the chart.
 */
void QXYSeries::add(qreal x,qreal y)
{
    Q_ASSERT(m_x.size() == m_y.size());
    m_x<<x;
    m_y<<y;
    emit pointAdded(m_x.size()-1);
}

/*!
   This is an overloaded function.
   Adds data \a point to the series. Points are connected with lines on the chart.
 */
void QXYSeries::add(const QPointF& point)
{
    add(point.x(),point.y());
}

/*!
   This is an overloaded function.
   Adds list of data \a points to the series. Points are connected with lines on the chart.
 */
void QXYSeries::add(const QList<QPointF> points)
{
    foreach(const QPointF& point , points) {
        add(point.x(),point.y());
    }
}

/*!
  Modifies \a y value for given \a x a value.
*/
void QXYSeries::replace(qreal x,qreal y)
{
    int index = m_x.indexOf(x);
    m_x[index]=x;
    m_y[index]=y;
    emit pointReplaced(index);
}

/*!
  This is an overloaded function.
  Replaces current y value of for given \a point x value with \a point y value.
*/
void QXYSeries::replace(const QPointF& point)
{
    replace(point.x(),point.y());
}

/*!
  Removes first \a x value and related y value.
*/
void QXYSeries::remove(qreal x)
{
    int index = m_x.indexOf(x);

    if(index==-1) return;

    m_x.remove(index);
    m_y.remove(index);

    emit pointRemoved(index);
}

/*!
  Removes current \a x and \a y value.
*/
void QXYSeries::remove(qreal x,qreal y)
{
    int index =-1;
    do{
        index = m_x.indexOf(x,index+1);
    }while(index !=-1 && m_y.at(index)!=y);

    if(index==-1) return;

    m_x.remove(index);
    m_y.remove(index);
    emit pointRemoved(index);
}

/*!
  Removes current \a point x value. Note \a point y value is ignored.
*/
void QXYSeries::remove(const QPointF& point)
{
    remove(point.x(),point.y());
}

/*!
   Removes all data points from the series.
*/
void QXYSeries::removeAll()
{
    m_x.clear();
    m_y.clear();
}

/*!
    \internal \a pos
*/
qreal QXYSeries::x(int pos) const
{
    if (m_model)
        if (m_mapOrientation == Qt::Vertical)
            // consecutive data is read from model's column
            return m_model->data(m_model->index(pos, m_mapX), Qt::DisplayRole).toDouble();
        else
            // consecutive data is read from model's row
            return m_model->data(m_model->index(m_mapX, pos), Qt::DisplayRole).toDouble();
    else
        // model is not specified, return the data from series' internal data store
        return m_x.at(pos);
}

/*!
    \internal \a pos
*/
qreal QXYSeries::y(int pos) const
{
    if (m_model)
        if (m_mapOrientation == Qt::Vertical)
            // consecutive data is read from model's column
            return m_model->data(m_model->index(pos, m_mapY), Qt::DisplayRole).toDouble();
        else
            // consecutive data is read from model's row
            return m_model->data(m_model->index(m_mapY, pos), Qt::DisplayRole).toDouble();
    else
        // model is not specified, return the data from series' internal data store
        return m_y.at(pos);
}

/*!
    Returns number of data points within series.
*/
int QXYSeries::count() const
{
    Q_ASSERT(m_x.size() == m_y.size());

    if (m_model) {
        if (m_mapOrientation == Qt::Vertical)
            // data is in a column, so return the number of items in single column
            return m_model->rowCount();
        else
            // data is in a row, so return the number of items in single row
            return m_model->columnCount();
    }

    // model is not specified, return the number of points in the series internal data store
    return m_x.size();
}

/*!
    Returns the data points of the series.
*/
QList<QPointF> QXYSeries::data()
{
    QList<QPointF> data;
    for (int i(0); i < m_x.count() && i < m_y.count(); i++)
        data.append(QPointF(m_x.at(i), m_y.at(i)));
    return data;
}


/*!
    Sets \a pen used for drawing points on the chart. If the pen is not defined, the
    pen from chart theme is used.
    \sa QChart::setChartTheme()
*/
void QXYSeries::setPen(const QPen& pen)
{
    if(pen!=m_pen){
        m_pen=pen;
        emit updated();
    }
}

/*!
    Sets \a brush used for drawing points on the chart. If the brush is not defined, brush
    from chart theme setting is used.
    \sa QChart::setChartTheme()
*/

void QXYSeries::setBrush(const QBrush& brush)
{
    if(brush!=m_brush){
        m_brush=brush;
        emit updated();
    }
}


/*!
    Stream operator for adding a data \a point to the series.
    \sa add()
*/

QXYSeries& QXYSeries::operator<< (const QPointF &point)
{
    add(point);
    return *this;
}


/*!
    Stream operator for adding a list of \a points to the series.
    \sa add()
*/

QXYSeries& QXYSeries::operator<< (const QList<QPointF> points)
{
    add(points);
    return *this;
}


void QXYSeries::modelUpdated(QModelIndex topLeft, QModelIndex bottomRight)
{
    Q_UNUSED(bottomRight)

    if (m_mapOrientation == Qt::Vertical)
        emit pointReplaced(topLeft.row());
    else
        emit pointReplaced(topLeft.column());
}

void QXYSeries::modelDataAdded(QModelIndex parent, int start, int end)
{
    Q_UNUSED(parent)
    Q_UNUSED(end)
    emit pointAdded(start);
}

void QXYSeries::modelDataRemoved(QModelIndex parent, int start, int end)
{
    Q_UNUSED(parent)
    Q_UNUSED(end)
    emit pointRemoved(start);
}

bool QXYSeries::setModel(QAbstractItemModel* model) {

    // disconnect signals from old model
    if(m_model)
    {
        disconnect(m_model, 0, this, 0);
        m_mapX = -1;
        m_mapY = -1;
        m_mapOrientation = Qt::Vertical;
    }

    // set new model
    if(model)
    {
        m_model = model;
        return true;
    }
    else
    {
        m_model = NULL;
        return false;
    }
}

void QXYSeries::setModelMapping(int modelX, int modelY, Qt::Orientation orientation)
{
    if (m_model == NULL)
        return;
    m_mapX = modelX;
    m_mapY = modelY;
    m_mapOrientation = orientation;
    if (m_mapOrientation == Qt::Vertical)
    {
        connect(m_model,SIGNAL(dataChanged(QModelIndex,QModelIndex)), this, SLOT(modelUpdated(QModelIndex, QModelIndex)));
        connect(m_model,SIGNAL(rowsInserted(QModelIndex, int, int)), this, SLOT(modelDataAdded(QModelIndex,int,int)));
        connect(m_model, SIGNAL(rowsRemoved(QModelIndex, int, int)), this, SLOT(modelDataRemoved(QModelIndex,int,int)));
    }
    else
    {
        connect(m_model,SIGNAL(dataChanged(QModelIndex,QModelIndex)), this, SLOT(modelUpdated(QModelIndex, QModelIndex)));
        connect(m_model,SIGNAL(columnsInserted(QModelIndex, int, int)), this, SLOT(modelDataAdded(QModelIndex,int,int)));
        connect(m_model, SIGNAL(columnsRemoved(QModelIndex, int, int)), this, SLOT(modelDataRemoved(QModelIndex,int,int)));
    }
}

//void QXYSeries::setModelMappingY(int modelLineIndex, Qt::Orientation orientation)
//{
//    m_mapY = modelLineIndex;
//    m_mapYOrientation = orientation;
//}

#include "moc_qxyseries.cpp"

QTCOMMERCIALCHART_END_NAMESPACE