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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QtCharts/QSplineSeries>
#include <private/qsplineseries_p.h>
#include <private/splinechartitem_p.h>
#include <private/chartdataset_p.h>
#include <private/charttheme_p.h>
#include <private/splineanimation_p.h>
#include <private/qchart_p.h>
/*!
\class QSplineSeries
\inmodule QtCharts
\brief The QSplineSeries class presents data as spline charts.
A spline series stores the data points and the segment control points needed
by QPainterPath to draw a spline. The control points are automatically
calculated when the data changes. The algorithm computes the points so that
the normal spline can be drawn.
\image examples_splinechart.png {Spline chart with a single smoothly
curving line that peaks, dips, and rises again}
The following code snippet illustrates how to create a basic spline chart:
\code
QSplineSeries* series = new QSplineSeries();
series->append(0, 6);
series->append(2, 4);
...
chart->addSeries(series);
\endcode
*/
/*!
\qmltype SplineSeries
\nativetype QSplineSeries
\inqmlmodule QtCharts
\inherits XYSeries
\brief Presents data as spline charts.
A spline series stores the data points and the segment control points needed
by QPainterPath to draw a spline. The control points are automatically
calculated when the data changes. The algorithm computes the points so that
the normal spline can be drawn.
\image examples_qmlchart3.png {Spline chart with a single curving line
that rises, dips, and rises again}
The following QML code shows how to create a simple spline chart:
\snippet qmlchartsgallery/qml/SplineSeries.qml 1
*/
/*!
\qmlproperty real SplineSeries::width
The width of the line. By default, the width is 2.0.
*/
/*!
\qmlproperty Qt::PenStyle SplineSeries::style
Controls the style of the line. Set to one of \l{Qt::NoPen}{Qt.NoPen},
\l{Qt::SolidLine}{Qt.SolidLine}, \l{Qt::DashLine}{Qt.DashLine}, \l{Qt::DotLine}{Qt.DotLine},
\l{Qt::DashDotLine}{Qt.DashDotLine}, or \l{Qt::DashDotDotLine}{Qt.DashDotDotLine}.
Using \l{Qt::CustomDashLine}{Qt.CustomDashLine} is not supported in the QML API.
By default, the style is Qt.SolidLine.
\sa Qt::PenStyle
*/
/*!
\qmlproperty Qt::PenCapStyle SplineSeries::capStyle
Controls the cap style of the line. Set to one of \l{Qt::FlatCap}{Qt.FlatCap},
\l{Qt::SquareCap}{Qt.SquareCap} or \l{Qt::RoundCap}{Qt.RoundCap}. By
default, the cap style is Qt.SquareCap.
\sa Qt::PenCapStyle
*/
/*!
\qmlproperty int SplineSeries::count
The number of data points in the series.
*/
QT_BEGIN_NAMESPACE
/*!
Constructs an empty series object that is a child of \a parent.
When the series object is added to a QChart instance, the ownerships is
transferred.
*/
QSplineSeries::QSplineSeries(QObject *parent)
: QLineSeries(*new QSplineSeriesPrivate(this), parent)
{
}
/*!
Deletes the spline series.
*/
QSplineSeries::~QSplineSeries()
{
Q_D(QSplineSeries);
if (d->m_chart)
d->m_chart->removeSeries(this);
}
/*!
\reimp
*/
QAbstractSeries::SeriesType QSplineSeries::type() const
{
return QAbstractSeries::SeriesTypeSpline;
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
QSplineSeriesPrivate::QSplineSeriesPrivate(QSplineSeries *q)
: QLineSeriesPrivate(q)
{
}
void QSplineSeriesPrivate::initializeGraphics(QGraphicsItem* parent)
{
Q_Q(QSplineSeries);
SplineChartItem *spline = new SplineChartItem(q,parent);
m_item.reset(spline);
// AXIVION Next Line Qt-SkippedBaseMethod: Intentionally skipping QLineSeriesPrivate
QAbstractSeriesPrivate::initializeGraphics(parent);
}
void QSplineSeriesPrivate::initializeTheme(int index, ChartTheme* theme, bool forced)
{
Q_Q(QSplineSeries);
const QList<QColor> colors = theme->seriesColors();
if (forced || QChartPrivate::defaultPen() == m_pen) {
QPen pen;
pen.setColor(colors.at(index % colors.size()));
pen.setWidthF(2);
q->setPen(pen);
}
if (forced || QChartPrivate::defaultPen().color() == m_pointLabelsColor) {
QColor color = theme->labelBrush().color();
q->setPointLabelsColor(color);
}
}
void QSplineSeriesPrivate::initializeAnimations(QChart::AnimationOptions options,
int duration, QEasingCurve &curve)
{
SplineChartItem *item = static_cast<SplineChartItem *>(m_item.get());
Q_ASSERT(item);
if (item->animation())
item->animation()->stopAndDestroyLater();
if (options.testFlag(QChart::SeriesAnimations))
item->setAnimation(new SplineAnimation(item, duration, curve));
else
item->setAnimation(0);
// AXIVION Next Line Qt-SkippedBaseMethod: Intentionally skipping QXYSeriesPrivate
QAbstractSeriesPrivate::initializeAnimations(options, duration, curve);
}
QT_END_NAMESPACE
#include "moc_qsplineseries.cpp"
#include "moc_qsplineseries_p.cpp"