qscatterseries.cpp
287 lines
| 7.4 KiB
| text/x-c
|
CppLexer
Jani Honkonen
|
r794 | /**************************************************************************** | ||
| ** | ||||
Miikka Heikkinen
|
r2432 | ** Copyright (C) 2013 Digia Plc | ||
|
Jani Honkonen
|
r794 | ** 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 | ||||
| ** $QT_END_LICENSE$ | ||||
| ** | ||||
| ****************************************************************************/ | ||||
Tero Ahola
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r42 | #include "qscatterseries.h" | ||
Michal Klocek
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r938 | #include "qscatterseries_p.h" | ||
|
Michal Klocek
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r943 | #include "scatterchartitem_p.h" | ||
| #include "chartdataset_p.h" | ||||
| #include "charttheme_p.h" | ||||
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Tero Ahola
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r42 | |||
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Tero Ahola
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r300 | /*! | ||
| \class QScatterSeries | ||||
|
Michal Klocek
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r481 | \brief The QScatterSeries class is used for making scatter charts. | ||
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r42 | |||
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r300 | \mainclass | ||
|
Michal Klocek
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r481 | The scatter data is displayed as a collection of points on the chart. Each point determines the position on the horizontal axis | ||
| and the vertical axis. | ||||
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r300 | |||
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Tero Ahola
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r995 | \image examples_scatterchart.png | ||
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Tero Ahola
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r300 | |||
|
Michal Klocek
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r481 | Creating basic scatter chart is simple: | ||
| \code | ||||
| QScatterSeries* series = new QScatterSeries(); | ||||
|
Jani Honkonen
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r796 | series->append(0, 6); | ||
| series->append(2, 4); | ||||
|
Michal Klocek
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r481 | ... | ||
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Tero Ahola
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r995 | chart->addSeries(series); | ||
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Michal Klocek
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r481 | \endcode | ||
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Tero Ahola
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r300 | */ | ||
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Tero Ahola
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r1491 | /*! | ||
| \qmlclass ScatterSeries QScatterSeries | ||||
| \inherits XYSeries | ||||
| The following QML shows how to create a chart with two simple scatter series: | ||||
| \snippet ../demos/qmlchart/qml/qmlchart/View5.qml 1 | ||||
| \beginfloatleft | ||||
| \image demos_qmlchart5.png | ||||
| \endfloat | ||||
| \clearfloat | ||||
| */ | ||||
|
Tero Ahola
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r42 | |||
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Tero Ahola
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r261 | /*! | ||
| \enum QScatterSeries::MarkerShape | ||||
| This enum describes the shape used when rendering marker items. | ||||
| \value MarkerShapeCircle | ||||
|
Michal Klocek
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r541 | \value MarkerShapeRectangle | ||
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Tero Ahola
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r261 | */ | ||
|
Jani Honkonen
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r1341 | /*! | ||
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Tero Ahola
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r1481 | \property QScatterSeries::color | ||
| Fill (brush) color of the series. This is a convenience property for modifying the color of brush. | ||||
| \sa QScatterSeries::brush() | ||||
|
Jani Honkonen
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r1341 | */ | ||
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Tero Ahola
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r1349 | /*! | ||
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Tero Ahola
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r1481 | \property QScatterSeries::borderColor | ||
| Line (pen) color of the series. This is a convenience property for modifying the color of pen. | ||||
| \sa QScatterSeries::pen() | ||||
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Tero Ahola
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r1349 | */ | ||
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Tero Ahola
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r2115 | /*! | ||
| \qmlproperty color ScatterSeries::borderColor | ||||
| Border (pen) color of the series. | ||||
| */ | ||||
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Tero Ahola
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r1349 | |||
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Tero Ahola
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r1904 | /*! | ||
| \qmlproperty real ScatterSeries::borderWidth | ||||
| The width of the border line. By default the width is 2.0. | ||||
| */ | ||||
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Tero Ahola
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r1349 | /*! | ||
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Tero Ahola
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r1491 | \property QScatterSeries::markerShape | ||
| Defines the shape of the marker used to draw the points in the series. The default shape is MarkerShapeCircle. | ||||
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Tero Ahola
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r1349 | */ | ||
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Jani Honkonen
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r1341 | /*! | ||
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Tero Ahola
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r1491 | \qmlproperty MarkerShape ScatterSeries::markerShape | ||
| Defines the shape of the marker used to draw the points in the series. One of ScatterSeries | ||||
| ScatterSeries.MarkerShapeCircle or ScatterSeries.MarkerShapeRectangle. | ||||
| The default shape is ScatterSeries.MarkerShapeCircle. | ||||
| */ | ||||
|
Jani Honkonen
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r1341 | |||
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Tero Ahola
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r1491 | /*! | ||
| \property QScatterSeries::markerSize | ||||
| Defines the size of the marker used to draw the points in the series. The default size is 15.0. | ||||
| */ | ||||
| /*! | ||||
| \qmlproperty real ScatterSeries::markerSize | ||||
| Defines the size of the marker used to draw the points in the series. The default size is 15.0. | ||||
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Tero Ahola
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r1481 | */ | ||
| /*! | ||||
| \fn void QScatterSeries::colorChanged(QColor color) | ||||
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Tero Ahola
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r1491 | Signal is emitted when the fill (brush) color has changed to \a color. | ||
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Tero Ahola
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r1481 | */ | ||
| /*! | ||||
| \fn void QScatterSeries::borderColorChanged(QColor color) | ||||
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Tero Ahola
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r1491 | Signal is emitted when the line (pen) color has changed to \a color. | ||
| */ | ||||
| /*! | ||||
| \qmlsignal ScatterSeries::borderColorChanged(color color) | ||||
| Signal is emitted when the line (pen) color has changed to \a color. | ||||
|
Jani Honkonen
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r1341 | */ | ||
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Tero Ahola
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r260 | /*! | ||
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Tero Ahola
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r300 | \fn QChartSeriesType QScatterSeries::type() const | ||
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Tero Ahola
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r1491 | Returns QChartSeries::SeriesTypeScatter. | ||
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Michal Klocek
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r1107 | \sa QAbstractSeries, SeriesType | ||
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Tero Ahola
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r300 | */ | ||
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Tero Ahola
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r260 | |||
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Tero Ahola
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r300 | QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||
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Tero Ahola
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r261 | /*! | ||
| Constructs a series object which is a child of \a parent. | ||||
| */ | ||||
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Jani Honkonen
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r2097 | QScatterSeries::QScatterSeries(QObject *parent) | ||
| : QXYSeries(*new QScatterSeriesPrivate(this), parent) | ||||
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Tero Ahola
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r42 | { | ||
| } | ||||
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Tero Ahola
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r260 | /*! | ||
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Tero Ahola
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r261 | Destroys the object. Note that adding series to QChart transfers the ownership to the chart. | ||
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Tero Ahola
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r260 | */ | ||
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Tero Ahola
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r158 | QScatterSeries::~QScatterSeries() | ||
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Tero Ahola
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r42 | { | ||
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Michal Klocek
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r1270 | Q_D(QScatterSeries); | ||
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Michal Klocek
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r2273 | if (d->m_chart) | ||
| d->m_chart->removeSeries(this); | ||||
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Tero Ahola
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r48 | } | ||
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Michal Klocek
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r1107 | QAbstractSeries::SeriesType QScatterSeries::type() const | ||
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Michal Klocek
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r938 | { | ||
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Tero Ahola
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r988 | return QAbstractSeries::SeriesTypeScatter; | ||
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Michal Klocek
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r938 | } | ||
Marek Rosa
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r1651 | /*! | ||
| Sets \a pen used for drawing points' border on the chart. If the pen is not defined, the | ||||
| pen from chart theme is used. | ||||
| \sa QChart::setTheme() | ||||
| */ | ||||
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Tero Ahola
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r1537 | void QScatterSeries::setPen(const QPen &pen) | ||
| { | ||||
| Q_D(QXYSeries); | ||||
| if (d->m_pen != pen) { | ||||
| bool emitColorChanged = d->m_pen.color() != pen.color(); | ||||
| d->m_pen = pen; | ||||
| emit d->updated(); | ||||
| if (emitColorChanged) | ||||
| emit borderColorChanged(pen.color()); | ||||
| } | ||||
| } | ||||
|
Marek Rosa
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r1651 | /*! | ||
| Sets \a brush used for drawing points on the chart. If the brush is not defined, brush | ||||
| from chart theme setting is used. | ||||
| \sa QChart::setTheme() | ||||
| */ | ||||
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Tero Ahola
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r1537 | void QScatterSeries::setBrush(const QBrush &brush) | ||
| { | ||||
| Q_D(QScatterSeries); | ||||
| if (d->m_brush != brush) { | ||||
| bool emitColorChanged = d->m_brush.color() != brush.color(); | ||||
| d->m_brush = brush; | ||||
| emit d->updated(); | ||||
| if (emitColorChanged) | ||||
| emit colorChanged(brush.color()); | ||||
| } | ||||
| } | ||||
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Tero Ahola
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r1481 | void QScatterSeries::setColor(const QColor &color) | ||
| { | ||||
| QBrush b = brush(); | ||||
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Tero Ahola
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r1933 | if (b == QBrush()) | ||
| b.setStyle(Qt::SolidPattern); | ||||
| b.setColor(color); | ||||
| setBrush(b); | ||||
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Tero Ahola
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r1481 | } | ||
| QColor QScatterSeries::color() const | ||||
| { | ||||
| return brush().color(); | ||||
| } | ||||
| void QScatterSeries::setBorderColor(const QColor &color) | ||||
| { | ||||
| QPen p = pen(); | ||||
| if (p.color() != color) { | ||||
| p.setColor(color); | ||||
| setPen(p); | ||||
| } | ||||
| } | ||||
| QColor QScatterSeries::borderColor() const | ||||
| { | ||||
| return pen().color(); | ||||
| } | ||||
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Tero Ahola
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r1276 | QScatterSeries::MarkerShape QScatterSeries::markerShape() const | ||
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Tero Ahola
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r195 | { | ||
|
Michal Klocek
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r938 | Q_D(const QScatterSeries); | ||
| return d->m_shape; | ||||
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Tero Ahola
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r195 | } | ||
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Tero Ahola
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r1276 | void QScatterSeries::setMarkerShape(MarkerShape shape) | ||
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Tero Ahola
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r195 | { | ||
|
Michal Klocek
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r938 | Q_D(QScatterSeries); | ||
| if (d->m_shape != shape) { | ||||
| d->m_shape = shape; | ||||
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Tero Ahola
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r1481 | emit d->updated(); | ||
|
Michal Klocek
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r573 | } | ||
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Tero Ahola
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r195 | } | ||
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Tero Ahola
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r1276 | qreal QScatterSeries::markerSize() const | ||
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Tero Ahola
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r397 | { | ||
|
Michal Klocek
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r938 | Q_D(const QScatterSeries); | ||
| return d->m_size; | ||||
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Tero Ahola
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r397 | } | ||
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Tero Ahola
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r1276 | void QScatterSeries::setMarkerSize(qreal size) | ||
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Tero Ahola
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r397 | { | ||
|
Michal Klocek
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r938 | Q_D(QScatterSeries); | ||
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Marek Rosa
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r2242 | if (!qFuzzyCompare(d->m_size, size)) { | ||
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Michal Klocek
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r938 | d->m_size = size; | ||
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Tero Ahola
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r1481 | emit d->updated(); | ||
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Michal Klocek
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r573 | } | ||
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Tero Ahola
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r397 | } | ||
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Michal Klocek
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r938 | //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// | ||
|
Jani Honkonen
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r2104 | QScatterSeriesPrivate::QScatterSeriesPrivate(QScatterSeries *q) | ||
| : QXYSeriesPrivate(q), | ||||
| m_shape(QScatterSeries::MarkerShapeCircle), | ||||
| m_size(15.0) | ||||
|
Michal Klocek
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r938 | { | ||
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Tero Ahola
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r1537 | } | ||
|
Michal Klocek
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r938 | |||
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Michal Klocek
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r2273 | void QScatterSeriesPrivate::initializeGraphics(QGraphicsItem* parent) | ||
|
Michal Klocek
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r943 | { | ||
| Q_Q(QScatterSeries); | ||||
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Michal Klocek
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r2273 | ScatterChartItem *scatter = new ScatterChartItem(q,parent); | ||
| m_item.reset(scatter); | ||||
| QAbstractSeriesPrivate::initializeGraphics(parent); | ||||
| } | ||||
| void QScatterSeriesPrivate::initializeTheme(int index, ChartTheme* theme, bool forced) | ||||
| { | ||||
| Q_Q(QScatterSeries); | ||||
| QPen pen; | ||||
| QBrush brush; | ||||
| const QList<QColor> colors = theme->seriesColors(); | ||||
| const QList<QGradient> gradients = theme->seriesGradients(); | ||||
| 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); | ||||
| } | ||||
|
Michal Klocek
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r943 | } | ||
|
Tero Ahola
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r1276 | #include "moc_qscatterseries.cpp" | ||
|
Michal Klocek
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r938 | |||
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Tero Ahola
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r42 | QTCOMMERCIALCHART_END_NAMESPACE | ||