|
|
/****************************************************************************
|
|
|
**
|
|
|
** Copyright (C) 2013 Digia Plc
|
|
|
** All rights reserved.
|
|
|
** For any questions to Digia, please use contact form at http://qt.digia.com
|
|
|
**
|
|
|
** This file is part of the Qt Commercial Charts Add-on.
|
|
|
**
|
|
|
** $QT_BEGIN_LICENSE$
|
|
|
** Licensees holding valid Qt Commercial licenses may use this file in
|
|
|
** accordance with the Qt Commercial 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.digia.com
|
|
|
** $QT_END_LICENSE$
|
|
|
**
|
|
|
****************************************************************************/
|
|
|
|
|
|
#include "qareaseries.h"
|
|
|
#include "qareaseries_p.h"
|
|
|
#include "qlineseries.h"
|
|
|
#include "areachartitem_p.h"
|
|
|
#include "abstractdomain_p.h"
|
|
|
#include "chartdataset_p.h"
|
|
|
#include "charttheme_p.h"
|
|
|
#include "qvalueaxis.h"
|
|
|
#include "qarealegendmarker.h"
|
|
|
#include "qchart_p.h"
|
|
|
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
|
|
|
/*!
|
|
|
\class QAreaSeries
|
|
|
\brief The QAreaSeries class is used for making area charts.
|
|
|
|
|
|
\mainclass
|
|
|
|
|
|
An area chart is used to show quantitative data. It is based on line chart, in the way that area between axis and the line
|
|
|
is emphasized with color. Since the area chart is based on line chart, QAreaSeries constructor needs QLineSeries instance,
|
|
|
which defines "upper" boundary of the area. "Lower" boundary is defined by default by axis X. Instead of axis X "lower" boundary can be specified by other line.
|
|
|
In that case QAreaSeries should be initiated with two QLineSeries instances. Please note terms "upper" and "lower" boundary can be misleading in cases
|
|
|
where "lower" boundary had bigger values than the "upper" one, however the main point that area between these two boundary lines will be filled.
|
|
|
|
|
|
See the \l {AreaChart Example} {area chart example} to learn how to create a simple area chart.
|
|
|
\image examples_areachart.png
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlclass AreaSeries QAreaSeries
|
|
|
|
|
|
The following QML shows how to create a simple area chart:
|
|
|
\snippet ../demos/qmlchart/qml/qmlchart/View4.qml 1
|
|
|
\beginfloatleft
|
|
|
\image demos_qmlchart4.png
|
|
|
\endfloat
|
|
|
\clearfloat
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QAreaSeries::upperSeries
|
|
|
\brief The upper one of the two line series used to define area series boundaries.
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlproperty LineSeries AreaSeries::upperSeries
|
|
|
The upper one of the two line series used to define area series boundaries.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QAreaSeries::lowerSeries
|
|
|
The lower one of the two line series used to define are series boundaries. Note if
|
|
|
QAreaSeries was constructed without a\ lowerSeries this is null.
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlproperty LineSeries AreaSeries::lowerSeries
|
|
|
The lower one of the two line series used to define are series boundaries. Note if
|
|
|
AreaSeries was constructed without a\ lowerSeries this is null.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QAreaSeries::color
|
|
|
Fill (brush) color of the series. This is a convenience property for modifying the color of brush.
|
|
|
\sa QAreaSeries::brush()
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlproperty color AreaSeries::color
|
|
|
Fill (brush) color of the series.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QAreaSeries::borderColor
|
|
|
Line (pen) color of the series. This is a convenience property for modifying the color of pen.
|
|
|
\sa QAreaSeries::pen()
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlproperty color AreaSeries::borderColor
|
|
|
Line (pen) color of the series.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\qmlproperty real AreaSeries::borderWidth
|
|
|
The width of the border line. By default the width is 2.0.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn QPen QAreaSeries::pen() const
|
|
|
\brief Returns the pen used to draw line for this series.
|
|
|
\sa setPen()
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn QPen QAreaSeries::brush() const
|
|
|
\brief Returns the brush used to draw line for this series.
|
|
|
\sa setBrush()
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QAreaSeries::colorChanged(QColor color)
|
|
|
\brief Signal is emitted when the fill (brush) color has changed to \a color.
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlsignal AreaSeries::onColorChanged(color color)
|
|
|
Signal is emitted when the fill (brush) color has changed to \a color.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QAreaSeries::borderColorChanged(QColor color)
|
|
|
\brief Signal is emitted when the line (pen) color has changed to \a color.
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlsignal AreaSeries::onBorderColorChanged(color color)
|
|
|
Signal is emitted when the line (pen) color has changed to \a color.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QAreaSeries::clicked(const QPointF& point)
|
|
|
\brief Signal is emitted when user clicks the \a point on area chart.
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlsignal AreaSeries::onClicked(QPointF point)
|
|
|
Signal is emitted when user clicks the \a point on area chart.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QAreaSeries::hovered(const QPointF &point, bool state)
|
|
|
This signal is emitted when user has hovered over or away from the series. \a point shows the origin (coordinate)
|
|
|
of the hover event. \a state is true when user has hovered over the series and false when hover has moved away from
|
|
|
the series.
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlsignal AreaSeries::onHovered(point point, bool state)
|
|
|
This signal is emitted when user has hovered over or away from the series. \a point shows the origin (coordinate)
|
|
|
of the hover event. \a state is true when user has hovered over the series and false when hover has moved away from
|
|
|
the series.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QAreaSeries::selected()
|
|
|
The signal is emitted if the user selects/deselects the XY series. The logic for maintaining selections should be
|
|
|
implemented by the user of QAreaSeries API.
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlsignal AreaSeries::onSelected()
|
|
|
The signal is emitted if the user selects/deselects the XY series. The logic for maintaining selections should be
|
|
|
implemented by the user of AreaSeries API.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QAreaSeriesPrivate::updated()
|
|
|
\brief \internal
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
Constructs area series object which is a child of \a upperSeries. Area will be spanned between \a
|
|
|
upperSeries line and \a lowerSeries line. If no \a lowerSeries is passed to constructor, area is specified by axis x (y=0) instead.
|
|
|
When series object is added to QChartView or QChart instance ownerships is transferred.
|
|
|
*/
|
|
|
QAreaSeries::QAreaSeries(QLineSeries *upperSeries, QLineSeries *lowerSeries)
|
|
|
: QAbstractSeries(*new QAreaSeriesPrivate(upperSeries, lowerSeries, this), upperSeries)
|
|
|
{
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Constructs area series object without upper or lower series with \a parent object.
|
|
|
*/
|
|
|
QAreaSeries::QAreaSeries(QObject *parent)
|
|
|
: QAbstractSeries(*new QAreaSeriesPrivate(0, 0, this), parent)
|
|
|
{
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Destroys the object.
|
|
|
*/
|
|
|
QAreaSeries::~QAreaSeries()
|
|
|
{
|
|
|
Q_D(QAreaSeries);
|
|
|
if (d->m_chart)
|
|
|
d->m_chart->removeSeries(this);
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns QChartSeries::SeriesTypeArea.
|
|
|
*/
|
|
|
QAbstractSeries::SeriesType QAreaSeries::type() const
|
|
|
{
|
|
|
return QAbstractSeries::SeriesTypeArea;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets the \a series that is to be used as the area chart upper series.
|
|
|
*/
|
|
|
void QAreaSeries::setUpperSeries(QLineSeries *series)
|
|
|
{
|
|
|
Q_D(QAreaSeries);
|
|
|
if (d->m_upperSeries != series)
|
|
|
d->m_upperSeries = series;
|
|
|
}
|
|
|
|
|
|
QLineSeries *QAreaSeries::upperSeries() const
|
|
|
{
|
|
|
Q_D(const QAreaSeries);
|
|
|
return d->m_upperSeries;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets the \a series that is to be used as the area chart lower series.
|
|
|
*/
|
|
|
void QAreaSeries::setLowerSeries(QLineSeries *series)
|
|
|
{
|
|
|
Q_D(QAreaSeries);
|
|
|
d->m_lowerSeries = series;
|
|
|
}
|
|
|
|
|
|
QLineSeries *QAreaSeries::lowerSeries() const
|
|
|
{
|
|
|
Q_D(const QAreaSeries);
|
|
|
return d->m_lowerSeries;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets \a pen used for drawing area outline.
|
|
|
*/
|
|
|
void QAreaSeries::setPen(const QPen &pen)
|
|
|
{
|
|
|
Q_D(QAreaSeries);
|
|
|
if (d->m_pen != pen) {
|
|
|
d->m_pen = pen;
|
|
|
emit d->updated();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
QPen QAreaSeries::pen() const
|
|
|
{
|
|
|
Q_D(const QAreaSeries);
|
|
|
return d->m_pen;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets \a brush used for filling the area.
|
|
|
*/
|
|
|
void QAreaSeries::setBrush(const QBrush &brush)
|
|
|
{
|
|
|
Q_D(QAreaSeries);
|
|
|
if (d->m_brush != brush) {
|
|
|
bool emitColorChanged = brush.color() != d->m_brush.color();
|
|
|
d->m_brush = brush;
|
|
|
emit d->updated();
|
|
|
if (emitColorChanged)
|
|
|
emit colorChanged(brush.color());
|
|
|
}
|
|
|
}
|
|
|
|
|
|
QBrush QAreaSeries::brush() const
|
|
|
{
|
|
|
Q_D(const QAreaSeries);
|
|
|
return d->m_brush;
|
|
|
}
|
|
|
|
|
|
void QAreaSeries::setColor(const QColor &color)
|
|
|
{
|
|
|
QBrush b = brush();
|
|
|
if (b == QBrush())
|
|
|
b.setStyle(Qt::SolidPattern);
|
|
|
b.setColor(color);
|
|
|
setBrush(b);
|
|
|
}
|
|
|
|
|
|
QColor QAreaSeries::color() const
|
|
|
{
|
|
|
return brush().color();
|
|
|
}
|
|
|
|
|
|
void QAreaSeries::setBorderColor(const QColor &color)
|
|
|
{
|
|
|
QPen p = pen();
|
|
|
if (p.color() != color) {
|
|
|
p.setColor(color);
|
|
|
setPen(p);
|
|
|
emit borderColorChanged(color);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
QColor QAreaSeries::borderColor() const
|
|
|
{
|
|
|
return pen().color();
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets if data points are \a visible and should be drawn on line.
|
|
|
*/
|
|
|
void QAreaSeries::setPointsVisible(bool visible)
|
|
|
{
|
|
|
Q_D(QAreaSeries);
|
|
|
if (d->m_pointsVisible != visible) {
|
|
|
d->m_pointsVisible = visible;
|
|
|
emit d->updated();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns if the points are drawn for this series.
|
|
|
\sa setPointsVisible()
|
|
|
*/
|
|
|
bool QAreaSeries::pointsVisible() const
|
|
|
{
|
|
|
Q_D(const QAreaSeries);
|
|
|
return d->m_pointsVisible;
|
|
|
}
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
QAreaSeriesPrivate::QAreaSeriesPrivate(QLineSeries *upperSeries, QLineSeries *lowerSeries, QAreaSeries *q)
|
|
|
: QAbstractSeriesPrivate(q),
|
|
|
m_upperSeries(upperSeries),
|
|
|
m_lowerSeries(lowerSeries),
|
|
|
m_pointsVisible(false)
|
|
|
{
|
|
|
}
|
|
|
|
|
|
void QAreaSeriesPrivate::initializeDomain()
|
|
|
{
|
|
|
Q_Q(QAreaSeries);
|
|
|
|
|
|
qreal minX(domain()->minX());
|
|
|
qreal minY(domain()->minY());
|
|
|
qreal maxX(domain()->maxX());
|
|
|
qreal maxY(domain()->maxY());
|
|
|
|
|
|
QLineSeries *upperSeries = q->upperSeries();
|
|
|
QLineSeries *lowerSeries = q->lowerSeries();
|
|
|
|
|
|
const QList<QPointF>& points = upperSeries->points();
|
|
|
|
|
|
for (int i = 0; i < points.count(); i++) {
|
|
|
qreal x = points[i].x();
|
|
|
qreal y = points[i].y();
|
|
|
minX = qMin(minX, x);
|
|
|
minY = qMin(minY, y);
|
|
|
maxX = qMax(maxX, x);
|
|
|
maxY = qMax(maxY, y);
|
|
|
}
|
|
|
if (lowerSeries) {
|
|
|
|
|
|
const QList<QPointF>& points = lowerSeries->points();
|
|
|
|
|
|
for (int i = 0; i < points.count(); i++) {
|
|
|
qreal x = points[i].x();
|
|
|
qreal y = points[i].y();
|
|
|
minX = qMin(minX, x);
|
|
|
minY = qMin(minY, y);
|
|
|
maxX = qMax(maxX, x);
|
|
|
maxY = qMax(maxY, y);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
domain()->setRange(minX, maxX, minY, maxY);
|
|
|
}
|
|
|
|
|
|
void QAreaSeriesPrivate::initializeGraphics(QGraphicsItem* parent)
|
|
|
{
|
|
|
Q_Q(QAreaSeries);
|
|
|
AreaChartItem *area = new AreaChartItem(q,parent);
|
|
|
m_item.reset(area);
|
|
|
QAbstractSeriesPrivate::initializeGraphics(parent);
|
|
|
}
|
|
|
void QAreaSeriesPrivate::initializeAnimations(QChart::AnimationOptions options)
|
|
|
{
|
|
|
Q_Q(QAreaSeries);
|
|
|
AreaChartItem *area = static_cast<AreaChartItem *>(m_item.data());
|
|
|
if (options.testFlag(QChart::SeriesAnimations)) {
|
|
|
area->upperLineItem()->setAnimation(new XYAnimation(area->upperLineItem()));
|
|
|
if (q->lowerSeries())
|
|
|
area->lowerLineItem()->setAnimation(new XYAnimation(area->lowerLineItem()));
|
|
|
}else{
|
|
|
area->upperLineItem()->setAnimation(0);
|
|
|
if (q->lowerSeries())
|
|
|
area->lowerLineItem()->setAnimation(0);
|
|
|
}
|
|
|
QAbstractSeriesPrivate::initializeAnimations(options);
|
|
|
}
|
|
|
|
|
|
QList<QLegendMarker*> QAreaSeriesPrivate::createLegendMarkers(QLegend* legend)
|
|
|
{
|
|
|
Q_Q(QAreaSeries);
|
|
|
QList<QLegendMarker*> list;
|
|
|
return list << new QAreaLegendMarker(q,legend);
|
|
|
}
|
|
|
|
|
|
|
|
|
void QAreaSeriesPrivate::initializeAxes()
|
|
|
{
|
|
|
|
|
|
}
|
|
|
|
|
|
QAbstractAxis::AxisType QAreaSeriesPrivate::defaultAxisType(Qt::Orientation orientation) const
|
|
|
{
|
|
|
Q_UNUSED(orientation);
|
|
|
return QAbstractAxis::AxisTypeValue;
|
|
|
}
|
|
|
|
|
|
QAbstractAxis* QAreaSeriesPrivate::createDefaultAxis(Qt::Orientation orientation) const
|
|
|
{
|
|
|
Q_UNUSED(orientation);
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
void QAreaSeriesPrivate::initializeTheme(int index, ChartTheme* theme, bool forced)
|
|
|
{
|
|
|
Q_Q(QAreaSeries);
|
|
|
QPen pen;
|
|
|
QBrush brush;
|
|
|
|
|
|
const QList<QGradient> gradients = theme->seriesGradients();
|
|
|
const QList<QColor> colors = theme->seriesColors();
|
|
|
|
|
|
if (forced || pen == m_pen) {
|
|
|
pen.setColor(ChartThemeManager::colorAt(gradients.at(index % gradients.size()), 0.0));
|
|
|
pen.setWidthF(2);
|
|
|
q->setPen(pen);
|
|
|
}
|
|
|
|
|
|
if (forced || brush == m_brush) {
|
|
|
QBrush brush(colors.at(index % colors.size()));
|
|
|
q->setBrush(brush);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
|
|
|
#include "moc_qareaseries.cpp"
|
|
|
#include "moc_qareaseries_p.cpp"
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
