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#include "qxyseries.h"
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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/*!
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\class QXYSeries
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\brief The QXYSeries class is a base class for line, spline and scatter series.
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*/
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/*!
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\fn QPen QXYSeries::pen() const
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\brief Returns pen used to draw points for series.
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\sa setPen()
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*/
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/*!
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\fn QBrush QXYSeries::brush() const
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\brief Returns brush used to draw points for series.
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\sa setBrush()
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*/
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/*!
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\fn void QXYSeries::clicked(const QPointF& point)
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\brief Signal is emitted when user clicks the \a point on chart.
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*/
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/*!
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\fn void QXYSeries::pointReplaced(int index)
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\brief \internal \a index
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*/
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/*!
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\fn void QXYSeries::pointAdded(int index)
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\brief \internal \a index
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*/
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/*!
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\fn void QXYSeries::pointRemoved(int index)
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\brief \internal \a index
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*/
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/*!
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\fn void QXYSeries::updated()
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\brief \internal
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*/
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/*!
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Constructs empty series object which is a child of \a parent.
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When series object is added to QChartView or QChart instance ownerships is transfered.
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*/
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QXYSeries::QXYSeries(QObject* parent):QSeries(parent)
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{
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m_mapX = -1;
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m_mapY = -1;
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m_mapOrientation = Qt::Vertical;
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// m_mapYOrientation = Qt::Vertical;
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}
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/*!
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Destroys the object. Series added to QChartView or QChart instances are owned by those,
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and are deleted when mentioned object are destroyed.
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*/
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QXYSeries::~QXYSeries()
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{
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}
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/*!
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Adds data point \a x \a y to the series. Points are connected with lines on the chart.
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*/
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void QXYSeries::add(qreal x,qreal y)
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{
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Q_ASSERT(m_x.size() == m_y.size());
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m_x<<x;
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m_y<<y;
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emit pointAdded(m_x.size()-1);
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}
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/*!
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This is an overloaded function.
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Adds data \a point to the series. Points are connected with lines on the chart.
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*/
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void QXYSeries::add(const QPointF& point)
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{
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add(point.x(),point.y());
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}
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/*!
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This is an overloaded function.
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Adds list of data \a points to the series. Points are connected with lines on the chart.
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*/
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void QXYSeries::add(const QList<QPointF> points)
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{
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foreach(const QPointF& point , points) {
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add(point.x(),point.y());
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}
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}
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/*!
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Modifies \a y value for given \a x a value.
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*/
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void QXYSeries::replace(qreal x,qreal y)
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{
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int index = m_x.indexOf(x);
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m_x[index]=x;
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m_y[index]=y;
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emit pointReplaced(index);
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}
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/*!
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This is an overloaded function.
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Replaces current y value of for given \a point x value with \a point y value.
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*/
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void QXYSeries::replace(const QPointF& point)
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{
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replace(point.x(),point.y());
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}
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/*!
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Removes first \a x value and related y value.
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*/
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void QXYSeries::remove(qreal x)
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{
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int index = m_x.indexOf(x);
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if(index==-1) return;
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m_x.remove(index);
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m_y.remove(index);
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emit pointRemoved(index);
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}
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/*!
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Removes current \a x and \a y value.
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*/
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void QXYSeries::remove(qreal x,qreal y)
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{
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int index =-1;
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do{
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index = m_x.indexOf(x,index+1);
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}while(index !=-1 && m_y.at(index)!=y);
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if(index==-1) return;
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m_x.remove(index);
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m_y.remove(index);
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emit pointRemoved(index);
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}
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/*!
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Removes current \a point x value. Note \a point y value is ignored.
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*/
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void QXYSeries::remove(const QPointF& point)
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{
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remove(point.x(),point.y());
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}
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/*!
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Removes all data points from the series.
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*/
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void QXYSeries::removeAll()
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{
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m_x.clear();
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m_y.clear();
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}
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/*!
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\internal \a pos
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*/
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qreal QXYSeries::x(int pos) const
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{
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if (m_model)
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if (m_mapOrientation == Qt::Vertical)
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// consecutive data is read from model's column
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return m_model->data(m_model->index(pos, m_mapX), Qt::DisplayRole).toDouble();
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else
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// consecutive data is read from model's row
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return m_model->data(m_model->index(m_mapX, pos), Qt::DisplayRole).toDouble();
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else
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// model is not specified, return the data from series' internal data store
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return m_x.at(pos);
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}
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/*!
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\internal \a pos
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*/
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qreal QXYSeries::y(int pos) const
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{
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if (m_model)
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if (m_mapOrientation == Qt::Vertical)
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// consecutive data is read from model's column
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return m_model->data(m_model->index(pos, m_mapY), Qt::DisplayRole).toDouble();
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else
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// consecutive data is read from model's row
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return m_model->data(m_model->index(m_mapY, pos), Qt::DisplayRole).toDouble();
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else
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// model is not specified, return the data from series' internal data store
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return m_y.at(pos);
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}
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/*!
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Returns number of data points within series.
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*/
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int QXYSeries::count() const
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{
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Q_ASSERT(m_x.size() == m_y.size());
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if (m_model) {
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if (m_mapOrientation == Qt::Vertical)
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// data is in a column, so return the number of items in single column
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return m_model->rowCount();
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else
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// data is in a row, so return the number of items in single row
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return m_model->columnCount();
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}
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// model is not specified, return the number of points in the series internal data store
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return m_x.size();
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}
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/*!
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Returns the data points of the series.
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*/
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QList<QPointF> QXYSeries::data()
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{
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QList<QPointF> data;
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for (int i(0); i < m_x.count() && i < m_y.count(); i++)
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data.append(QPointF(m_x.at(i), m_y.at(i)));
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return data;
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}
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/*!
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Sets \a pen used for drawing points on the chart. If the pen is not defined, the
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pen from chart theme is used.
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\sa QChart::setChartTheme()
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*/
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void QXYSeries::setPen(const QPen& pen)
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{
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if(pen!=m_pen){
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m_pen=pen;
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emit updated();
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}
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}
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/*!
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Sets \a brush used for drawing points on the chart. If the brush is not defined, brush
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from chart theme setting is used.
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\sa QChart::setChartTheme()
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*/
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void QXYSeries::setBrush(const QBrush& brush)
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{
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if(brush!=m_brush){
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m_brush=brush;
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emit updated();
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}
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}
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/*!
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Stream operator for adding a data \a point to the series.
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\sa add()
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*/
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QXYSeries& QXYSeries::operator<< (const QPointF &point)
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{
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add(point);
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return *this;
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}
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/*!
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Stream operator for adding a list of \a points to the series.
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\sa add()
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*/
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QXYSeries& QXYSeries::operator<< (const QList<QPointF> points)
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{
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add(points);
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return *this;
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}
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void QXYSeries::modelUpdated(QModelIndex topLeft, QModelIndex bottomRight)
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{
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Q_UNUSED(bottomRight)
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if (m_mapOrientation == Qt::Vertical)
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emit pointReplaced(topLeft.row());
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else
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emit pointReplaced(topLeft.column());
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}
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void QXYSeries::modelDataAdded(QModelIndex parent, int start, int end)
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{
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Q_UNUSED(parent)
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Q_UNUSED(end)
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emit pointAdded(start);
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}
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void QXYSeries::modelDataRemoved(QModelIndex parent, int start, int end)
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{
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Q_UNUSED(parent)
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Q_UNUSED(end)
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emit pointRemoved(start);
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}
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bool QXYSeries::setModel(QAbstractItemModel* model) {
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// disconnect signals from old model
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if(m_model)
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{
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disconnect(m_model, 0, this, 0);
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m_mapX = -1;
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m_mapY = -1;
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m_mapOrientation = Qt::Vertical;
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}
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// set new model
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if(model)
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{
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m_model = model;
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return true;
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}
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else
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{
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m_model = NULL;
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return false;
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}
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}
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void QXYSeries::setModelMapping(int modelX, int modelY, Qt::Orientation orientation)
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{
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if (m_model == NULL)
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return;
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m_mapX = modelX;
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m_mapY = modelY;
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m_mapOrientation = orientation;
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if (m_mapOrientation == Qt::Vertical)
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{
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connect(m_model,SIGNAL(dataChanged(QModelIndex,QModelIndex)), this, SLOT(modelUpdated(QModelIndex, QModelIndex)));
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connect(m_model,SIGNAL(rowsInserted(QModelIndex, int, int)), this, SLOT(modelDataAdded(QModelIndex,int,int)));
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connect(m_model, SIGNAL(rowsRemoved(QModelIndex, int, int)), this, SLOT(modelDataRemoved(QModelIndex,int,int)));
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}
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else
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{
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connect(m_model,SIGNAL(dataChanged(QModelIndex,QModelIndex)), this, SLOT(modelUpdated(QModelIndex, QModelIndex)));
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connect(m_model,SIGNAL(columnsInserted(QModelIndex, int, int)), this, SLOT(modelDataAdded(QModelIndex,int,int)));
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connect(m_model, SIGNAL(columnsRemoved(QModelIndex, int, int)), this, SLOT(modelDataRemoved(QModelIndex,int,int)));
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}
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}
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//void QXYSeries::setModelMappingY(int modelLineIndex, Qt::Orientation orientation)
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//{
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// m_mapY = modelLineIndex;
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// m_mapYOrientation = orientation;
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//}
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#include "moc_qxyseries.cpp"
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QTCOMMERCIALCHART_END_NAMESPACE
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