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/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc
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** All rights reserved.
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** For any questions to Digia, please use contact form at http://qt.digia.com
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**
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** This file is part of the Qt Commercial Charts Add-on.
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**
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** $QT_BEGIN_LICENSE$
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia.
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**
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** If you have questions regarding the use of this file, please use
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** contact form at http://qt.digia.com
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qxyseries.h"
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#include "qxyseries_p.h"
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#include "domain_p.h"
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#include "qvalueaxis.h"
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#include "qxylegendmarker.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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\qmlclass XYSeries
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\inherits AbstractSeries
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The XYSeries class is a base class for line, spline and scatter series.
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The class cannot be instantiated directly.
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*/
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/*!
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\property QXYSeries::pointsVisible
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Controls if the data points are visible and should be drawn.
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*/
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/*!
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\qmlproperty bool XYSeries::pointsVisible
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Controls if the data points are visible and should be drawn.
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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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\property QXYSeries::color
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The color of the series. This is line (pen) color in case of QLineSeries or QSplineSeries and
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fill (brush) color in case of QScatterSeries or QAreaSeries.
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\sa QXYSeries::pen(), QXYSeries::brush()
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*/
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/*!
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\qmlproperty color XYSeries::color
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The color of the series. This is line (pen) color in case of LineSeries or SplineSeries and
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fill (brush) color in case of ScatterSeries or AreaSeries.
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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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\qmlsignal XYSeries::onClicked(QPointF point)
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Signal is emitted when user clicks the \a point on chart. For example:
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\code
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LineSeries {
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XYPoint { x: 0; y: 0 }
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XYPoint { x: 1.1; y: 2.1 }
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onClicked: console.log("onClicked: " + point.x + ", " + point.y);
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}
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\endcode
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*/
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/*!
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\fn void QXYSeries::pointReplaced(int index)
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Signal is emitted when a point has been replaced at \a index.
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\sa replace()
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*/
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/*!
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\qmlsignal XYSeries::onPointReplaced(int index)
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Signal is emitted when a point has been replaced at \a index.
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*/
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/*!
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\fn void QXYSeries::pointsReplaced()
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Signal is emitted when all points have been replaced with another points.
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\sa replace()
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*/
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/*!
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\qmlsignal XYSeries::onPointsReplaced()
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*/
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/*!
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\fn void QXYSeries::pointAdded(int index)
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Signal is emitted when a point has been added at \a index.
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\sa append(), insert()
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*/
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/*!
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\qmlsignal XYSeries::onPointAdded(int index)
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Signal is emitted when a point has been added at \a index.
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*/
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/*!
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\fn void QXYSeries::pointRemoved(int index)
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Signal is emitted when a point has been removed from \a index.
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\sa remove()
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*/
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/*!
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\qmlsignal XYSeries::onPointRemoved(int index)
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Signal is emitted when a point has been removed from \a index.
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*/
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/*!
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\fn void QXYSeries::colorChanged(QColor color)
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\brief Signal is emitted when the line (pen) color has changed to \a color.
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*/
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/*!
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\qmlsignal XYSeries::onColorChanged(color color)
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Signal is emitted when the line (pen) color has changed to \a color.
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*/
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/*!
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\fn void QXYSeriesPrivate::updated()
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\brief \internal
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*/
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/*!
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\qmlmethod XYSeries::append(real x, real y)
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Append point (\a x, \a y) to the series
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*/
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/*!
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\qmlmethod XYSeries::replace(real oldX, real oldY, real newX, real newY)
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Replaces point (\a oldX, \a oldY) with point (\a newX, \a newY). Does nothing, if point (oldX, oldY) does not
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exist.
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*/
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/*!
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\qmlmethod XYSeries::remove(real x, real y)
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Removes point (\a x, \a y) from the series. Does nothing, if point (x, y) does not exist.
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*/
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/*!
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\qmlmethod XYSeries::insert(int index, real x, real y)
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Inserts point (\a x, \a y) to the \a index. If index is 0 or smaller than 0 the point is prepended to the list of
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points. If index is the same as or bigger than count, the point is appended to the list of points.
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*/
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/*!
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\qmlmethod QPointF XYSeries::at(int index)
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Returns point at \a index. Returns (0, 0) if the index is not valid.
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*/
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/*!
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\internal
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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 transferred.
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*/
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QXYSeries::QXYSeries(QXYSeriesPrivate &d, QObject *parent)
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: QAbstractSeries(d, parent)
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{
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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::append(qreal x, qreal y)
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{
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append(QPointF(x, y));
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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::append(const QPointF &point)
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{
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Q_D(QXYSeries);
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d->m_points << point;
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emit pointAdded(d->m_points.count() - 1);
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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::append(const QList<QPointF> &points)
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{
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foreach (const QPointF &point , points)
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append(point);
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}
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/*!
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Replaces data point \a oldX \a oldY with data point \a newX \a newY.
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\sa QXYSeries::pointReplaced()
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*/
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void QXYSeries::replace(qreal oldX, qreal oldY, qreal newX, qreal newY)
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{
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replace(QPointF(oldX, oldY), QPointF(newX, newY));
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}
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/*!
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Replaces \a oldPoint with \a newPoint.
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\sa QXYSeries::pointReplaced()
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*/
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void QXYSeries::replace(const QPointF &oldPoint, const QPointF &newPoint)
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{
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Q_D(QXYSeries);
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int index = d->m_points.indexOf(oldPoint);
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if (index == -1)
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return;
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d->m_points[index] = newPoint;
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emit pointReplaced(index);
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}
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/*!
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Replaces the current points with \a points. This is faster than replacing data points one by one,
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or first clearing all data, and then appending the new data. Emits QXYSeries::pointsReplaced()
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when the points have been replaced.
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\sa QXYSeries::pointsReplaced()
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*/
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void QXYSeries::replace(QList<QPointF> points)
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{
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Q_D(QXYSeries);
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d->m_points = points.toVector();
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emit pointsReplaced();
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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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remove(QPointF(x, y));
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}
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/*!
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Removes current \a point x value.
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Note: 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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Q_D(QXYSeries);
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int index = d->m_points.indexOf(point);
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if (index == -1)
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return;
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d->m_points.remove(index);
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emit pointRemoved(index);
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}
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/*!
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Inserts a \a point in the series at \a index position.
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*/
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void QXYSeries::insert(int index, const QPointF &point)
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{
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Q_D(QXYSeries);
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d->m_points.insert(index, point);
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emit pointAdded(index);
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}
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/*!
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Removes all points from the series.
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*/
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void QXYSeries::clear()
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{
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Q_D(QXYSeries);
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for (int i = d->m_points.size() - 1; i >= 0; i--)
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remove(d->m_points.at(i));
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}
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/*!
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Returns list of points in the series.
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*/
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QList<QPointF> QXYSeries::points() const
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{
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Q_D(const QXYSeries);
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return d->m_points.toList();
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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_D(const QXYSeries);
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return d->m_points.count();
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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::setTheme()
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*/
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void QXYSeries::setPen(const QPen &pen)
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{
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Q_D(QXYSeries);
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if (d->m_pen != pen) {
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bool emitColorChanged = d->m_pen.color() != pen.color();
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d->m_pen = pen;
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emit d->updated();
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if (emitColorChanged)
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emit colorChanged(pen.color());
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}
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}
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QPen QXYSeries::pen() const
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{
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Q_D(const QXYSeries);
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return d->m_pen;
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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::setTheme()
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*/
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void QXYSeries::setBrush(const QBrush &brush)
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{
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Q_D(QXYSeries);
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if (d->m_brush != brush) {
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d->m_brush = brush;
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emit d->updated();
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}
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}
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QBrush QXYSeries::brush() const
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{
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Q_D(const QXYSeries);
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return d->m_brush;
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}
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void QXYSeries::setColor(const QColor &color)
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{
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QPen p = pen();
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if (p.color() != color) {
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p.setColor(color);
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setPen(p);
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}
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}
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QColor QXYSeries::color() const
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{
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return pen().color();
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}
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void QXYSeries::setPointsVisible(bool visible)
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{
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Q_D(QXYSeries);
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if (d->m_pointsVisible != visible) {
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d->m_pointsVisible = visible;
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emit d->updated();
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}
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}
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bool QXYSeries::pointsVisible() const
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{
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Q_D(const QXYSeries);
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return d->m_pointsVisible;
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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 append()
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*/
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QXYSeries &QXYSeries::operator<< (const QPointF &point)
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{
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append(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 append()
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*/
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QXYSeries &QXYSeries::operator<< (const QList<QPointF>& points)
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{
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append(points);
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return *this;
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}
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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QXYSeriesPrivate::QXYSeriesPrivate(QXYSeries *q)
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: QAbstractSeriesPrivate(q),
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m_pointsVisible(false)
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{
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}
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void QXYSeriesPrivate::scaleDomain(Domain &domain)
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{
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qreal minX(0);
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qreal minY(0);
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qreal maxX(1);
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qreal maxY(1);
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Q_Q(QXYSeries);
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const QList<QPointF>& points = q->points();
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if (!points.isEmpty()) {
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minX = points[0].x();
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minY = points[0].y();
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maxX = minX;
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maxY = minY;
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for (int i = 0; i < points.count(); i++) {
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qreal x = points[i].x();
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qreal y = points[i].y();
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minX = qMin(minX, x);
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minY = qMin(minY, y);
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maxX = qMax(maxX, x);
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maxY = qMax(maxY, y);
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}
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}
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domain.setRange(minX, maxX, minY, maxY);
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}
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QList<QLegendMarker*> QXYSeriesPrivate::createLegendMarkers(QLegend* legend)
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{
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Q_Q(QXYSeries);
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QList<QLegendMarker*> list;
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return list << new QXYLegendMarker(q,legend);
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}
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void QXYSeriesPrivate::initializeAxis(QAbstractAxis *axis)
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{
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Q_UNUSED(axis);
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}
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QAbstractAxis::AxisType QXYSeriesPrivate::defaultAxisType(Qt::Orientation orientation) const
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{
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Q_UNUSED(orientation);
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return QAbstractAxis::AxisTypeValue;
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}
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#include "moc_qxyseries.cpp"
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#include "moc_qxyseries_p.cpp"
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QTCOMMERCIALCHART_END_NAMESPACE
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