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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Charts module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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
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
\instantiates 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
The following QML code shows how to create a simple spline chart:
\snippet qmlchart/qml/qmlchart/View3.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_CHARTS_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);
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(QtCharts::QChart::AnimationOptions options,
int duration, QEasingCurve &curve)
{
SplineChartItem *item = static_cast<SplineChartItem *>(m_item.data());
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);
QAbstractSeriesPrivate::initializeAnimations(options, duration, curve);
}
#include "moc_qsplineseries.cpp"
#include "moc_qsplineseries_p.cpp"
QT_CHARTS_END_NAMESPACE
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