qsplineseries.cpp
163 lines
| 4.7 KiB
| text/x-c
|
CppLexer
Jani Honkonen
|
r794 | /**************************************************************************** | ||
| ** | ||||
Titta Heikkala
|
r2776 | ** Copyright (C) 2015 The Qt Company Ltd | ||
|
Jani Honkonen
|
r794 | ** All rights reserved. | ||
|
Titta Heikkala
|
r2776 | ** For any questions to The Qt Company, please use contact form at http://qt.io | ||
|
Jani Honkonen
|
r794 | ** | ||
|
Titta Heikkala
|
r2740 | ** This file is part of the Qt Charts module. | ||
|
Jani Honkonen
|
r794 | ** | ||
|
Titta Heikkala
|
r2740 | ** Licensees holding valid commercial license for Qt may use this file in | ||
| ** accordance with the Qt License Agreement provided with the Software | ||||
| ** or, alternatively, in accordance with the terms contained in a written | ||||
|
Titta Heikkala
|
r2776 | ** agreement between you and The Qt Company. | ||
|
Jani Honkonen
|
r794 | ** | ||
| ** If you have questions regarding the use of this file, please use | ||||
|
Titta Heikkala
|
r2740 | ** contact form at http://qt.io | ||
|
Jani Honkonen
|
r794 | ** | ||
| ****************************************************************************/ | ||||
|
Titta Heikkala
|
r2714 | #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> | ||||
Marek Rosa
|
r295 | |||
|
Marek Rosa
|
r433 | /*! | ||
| \class QSplineSeries | ||||
Titta Heikkala
|
r2639 | \inmodule Qt Charts | ||
|
Marek Rosa
|
r433 | \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. | ||||
Tero Ahola
|
r995 | |||
| \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 | ||||
|
Marek Rosa
|
r433 | */ | ||
|
Titta Heikkala
|
r2639 | /*! | ||
| \qmltype SplineSeries | ||||
| \instantiates QSplineSeries | ||||
|
Titta Heikkala
|
r2712 | \inqmlmodule QtCharts | ||
|
Marek Rosa
|
r433 | |||
|
Titta Heikkala
|
r2712 | \inherits XYSeries | ||
| \brief The SplineSeries type is used for making spline charts. | ||||
|
Tero Ahola
|
r1491 | |||
|
Titta Heikkala
|
r2712 | 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 | ||||
|
Tero Ahola
|
r1491 | */ | ||
| /*! | ||||
| \fn QSeriesType QSplineSeries::type() const | ||||
| Returns the type of the series | ||||
| */ | ||||
|
Marek Rosa
|
r433 | |||
|
Tero Ahola
|
r1904 | /*! | ||
| \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. | ||||
| */ | ||||
|
Titta Heikkala
|
r2712 | QT_CHARTS_BEGIN_NAMESPACE | ||
|
Marek Rosa
|
r401 | |||
|
Marek Rosa
|
r433 | /*! | ||
| Constructs empty series object which is a child of \a parent. | ||||
Miikka Heikkinen
|
r2494 | When series object is added to a QChart instance then the ownerships is transferred. | ||
|
Marek Rosa
|
r433 | */ | ||
|
Jani Honkonen
|
r2097 | QSplineSeries::QSplineSeries(QObject *parent) | ||
| : QLineSeries(*new QSplineSeriesPrivate(this), parent) | ||||
|
Marek Rosa
|
r295 | { | ||
| } | ||||
|
Marek Rosa
|
r305 | |||
|
Jani Honkonen
|
r1351 | /*! | ||
| Destroys the object. | ||||
| */ | ||||
Michal Klocek
|
r1082 | QSplineSeries::~QSplineSeries() | ||
| { | ||||
| Q_D(QSplineSeries); | ||||
|
Michal Klocek
|
r2273 | if (d->m_chart) | ||
| d->m_chart->removeSeries(this); | ||||
|
Michal Klocek
|
r1082 | } | ||
|
Michal Klocek
|
r1107 | QAbstractSeries::SeriesType QSplineSeries::type() const | ||
|
Michal Klocek
|
r938 | { | ||
|
Tero Ahola
|
r988 | return QAbstractSeries::SeriesTypeSpline; | ||
|
Michal Klocek
|
r938 | } | ||
| //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// | ||||
|
Jani Honkonen
|
r2104 | QSplineSeriesPrivate::QSplineSeriesPrivate(QSplineSeries *q) | ||
|
Jani Honkonen
|
r2097 | : QLineSeriesPrivate(q) | ||
|
Michal Klocek
|
r938 | { | ||
|
Marek Rosa
|
r1309 | } | ||
|
Michal Klocek
|
r938 | |||
|
Michal Klocek
|
r2273 | void QSplineSeriesPrivate::initializeGraphics(QGraphicsItem* parent) | ||
|
Michal Klocek
|
r943 | { | ||
| Q_Q(QSplineSeries); | ||||
|
Michal Klocek
|
r2273 | 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(); | ||||
|
Miikka Heikkinen
|
r2516 | if (forced || QChartPrivate::defaultPen() == m_pen) { | ||
| QPen pen; | ||||
|
Michal Klocek
|
r2273 | pen.setColor(colors.at(index % colors.size())); | ||
| pen.setWidthF(2); | ||||
| q->setPen(pen); | ||||
| } | ||||
|
Titta Heikkala
|
r2689 | |||
| if (forced || QChartPrivate::defaultPen().color() == m_pointLabelsColor) { | ||||
| QColor color = theme->labelBrush().color(); | ||||
| q->setPointLabelsColor(color); | ||||
| } | ||||
|
Michal Klocek
|
r2273 | } | ||
|
Titta Heikkala
|
r2712 | void QSplineSeriesPrivate::initializeAnimations(QtCharts::QChart::AnimationOptions options) | ||
|
Michal Klocek
|
r2273 | { | ||
| SplineChartItem *item = static_cast<SplineChartItem *>(m_item.data()); | ||||
| Q_ASSERT(item); | ||||
|
Miikka Heikkinen
|
r2555 | if (item->animation()) | ||
| item->animation()->stopAndDestroyLater(); | ||||
| if (options.testFlag(QChart::SeriesAnimations)) | ||||
|
Michal Klocek
|
r2273 | item->setAnimation(new SplineAnimation(item)); | ||
|
Miikka Heikkinen
|
r2555 | else | ||
|
Michal Klocek
|
r2273 | item->setAnimation(0); | ||
| QAbstractSeriesPrivate::initializeAnimations(options); | ||||
|
Michal Klocek
|
r943 | } | ||
|
Marek Rosa
|
r401 | #include "moc_qsplineseries.cpp" | ||
|
Michal Klocek
|
r938 | #include "moc_qsplineseries_p.cpp" | ||
|
Marek Rosa
|
r401 | |||
|
Titta Heikkala
|
r2712 | QT_CHARTS_END_NAMESPACE | ||