|
|
/****************************************************************************
|
|
|
**
|
|
|
** 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 Qt Charts
|
|
|
\brief Series type used to store data needed to draw a spline.
|
|
|
|
|
|
QSplineSeries stores the data points along with the segment control points needed by QPainterPath to draw spline
|
|
|
Control points are automatically calculated when data changes. The algorithm computes the points so that the normal spline can be drawn.
|
|
|
|
|
|
\image examples_splinechart.png
|
|
|
|
|
|
Creating basic spline chart is simple:
|
|
|
\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 The SplineSeries type is used for making spline charts.
|
|
|
|
|
|
The following QML shows how to create a simple spline chart:
|
|
|
\snippet qmlchart/qml/qmlchart/View3.qml 1
|
|
|
\beginfloatleft
|
|
|
\image examples_qmlchart3.png
|
|
|
\endfloat
|
|
|
\clearfloat
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn QSeriesType QSplineSeries::type() const
|
|
|
Returns the type of the series
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\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 Qt.NoPen, Qt.SolidLine, Qt.DashLine, Qt.DotLine,
|
|
|
Qt.DashDotLine or Qt.DashDotDotLine. Using Qt.CustomDashLine is not supported in the QML API.
|
|
|
By default the style is Qt.SolidLine.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\qmlproperty Qt::PenCapStyle SplineSeries::capStyle
|
|
|
Controls the cap style of the line. Set to one of Qt.FlatCap, Qt.SquareCap or Qt.RoundCap. By
|
|
|
default the cap style is Qt.SquareCap.
|
|
|
*/
|
|
|
|
|
|
QT_CHARTS_BEGIN_NAMESPACE
|
|
|
|
|
|
/*!
|
|
|
Constructs empty series object which is a child of \a parent.
|
|
|
When series object is added to a QChart instance then the ownerships is transferred.
|
|
|
*/
|
|
|
|
|
|
QSplineSeries::QSplineSeries(QObject *parent)
|
|
|
: QLineSeries(*new QSplineSeriesPrivate(this), parent)
|
|
|
{
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Destroys the object.
|
|
|
*/
|
|
|
QSplineSeries::~QSplineSeries()
|
|
|
{
|
|
|
Q_D(QSplineSeries);
|
|
|
if (d->m_chart)
|
|
|
d->m_chart->removeSeries(this);
|
|
|
}
|
|
|
|
|
|
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
|
|
|
|
