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/****************************************************************************
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**
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** Copyright (C) 2014 Digia Plc
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** All rights reserved.
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** For any questions to Digia, please use contact form at http://qt.digia.com
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**
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** This file is part of the Qt Enterprise Charts Add-on.
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**
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** $QT_BEGIN_LICENSE$
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** Licensees holding valid Qt Enterprise licenses may use this file in
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** accordance with the Qt Enterprise License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia.
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**
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** If you have questions regarding the use of this file, please use
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** contact form at http://qt.digia.com
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qareaseries.h"
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#include "qareaseries_p.h"
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#include "qlineseries.h"
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#include "areachartitem_p.h"
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#include "abstractdomain_p.h"
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#include "chartdataset_p.h"
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#include "charttheme_p.h"
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#include "qvalueaxis.h"
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#include "qarealegendmarker.h"
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#include "qchart_p.h"
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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/*!
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\class QAreaSeries
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\inmodule Qt Charts
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\brief The QAreaSeries class is used for making area charts.
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\mainclass
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An area chart is used to show quantitative data. It is based on line chart, in the way that area between axis and the line
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is emphasized with color. Since the area chart is based on line chart, QAreaSeries constructor needs QLineSeries instance,
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which defines "upper" boundary of the area. "Lower" boundary is defined by default by axis X. Instead of axis X "lower" boundary can be specified by other line.
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In that case QAreaSeries should be initiated with two QLineSeries instances. Please note terms "upper" and "lower" boundary can be misleading in cases
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where "lower" boundary had bigger values than the "upper" one, however the main point that area between these two boundary lines will be filled.
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See the \l {AreaChart Example} {area chart example} to learn how to create a simple area chart.
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\image examples_areachart.png
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*/
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#ifdef QDOC_QT5
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/*!
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\qmltype AreaSeries
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\instantiates QAreaSeries
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\inqmlmodule QtCommercial.Chart
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\include doc/src/areaseries.qdocinc
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*/
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#else
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/*!
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\qmlclass AreaSeries QAreaSeries
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\include ../doc/src/areaseries.qdocinc
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*/
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#endif
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/*!
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\property QAreaSeries::upperSeries
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\brief The upper one of the two line series used to define area series boundaries.
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*/
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/*!
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\qmlproperty LineSeries AreaSeries::upperSeries
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The upper one of the two line series used to define area series boundaries.
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*/
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/*!
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\property QAreaSeries::lowerSeries
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The lower one of the two line series used to define are series boundaries. Note if
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QAreaSeries was constructed without a\ lowerSeries this is null.
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*/
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/*!
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\qmlproperty LineSeries AreaSeries::lowerSeries
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The lower one of the two line series used to define are series boundaries. Note if
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AreaSeries was constructed without a\ lowerSeries this is null.
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*/
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/*!
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\property QAreaSeries::color
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Fill (brush) color of the series. This is a convenience property for modifying the color of brush.
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\sa QAreaSeries::brush()
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*/
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/*!
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\qmlproperty color AreaSeries::color
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Fill (brush) color of the series.
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*/
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/*!
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\property QAreaSeries::borderColor
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Line (pen) color of the series. This is a convenience property for modifying the color of pen.
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\sa QAreaSeries::pen()
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*/
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/*!
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\qmlproperty color AreaSeries::borderColor
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Line (pen) color of the series.
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*/
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/*!
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\qmlproperty real AreaSeries::borderWidth
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The width of the border line. By default the width is 2.0.
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*/
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/*!
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\fn QPen QAreaSeries::pen() const
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\brief Returns the pen used to draw line for this series.
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\sa setPen()
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*/
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/*!
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\fn QPen QAreaSeries::brush() const
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\brief Returns the brush used to draw line for this series.
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\sa setBrush()
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*/
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/*!
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\qmlproperty QString AreaSeries::brushFilename
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The name of the file used as a brush image for the series.
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*/
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/*!
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\fn void QAreaSeries::colorChanged(QColor color)
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\brief Signal is emitted when the fill (brush) color has changed to \a color.
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*/
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/*!
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\qmlsignal AreaSeries::onColorChanged(color color)
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Signal is emitted when the fill (brush) color has changed to \a color.
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*/
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/*!
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\fn void QAreaSeries::borderColorChanged(QColor color)
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\brief Signal is emitted when the line (pen) color has changed to \a color.
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*/
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/*!
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\qmlsignal AreaSeries::onBorderColorChanged(color color)
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Signal is emitted when the line (pen) color has changed to \a color.
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*/
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/*!
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\fn void QAreaSeries::clicked(const QPointF& point)
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\brief Signal is emitted when user clicks the \a point on area chart.
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*/
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/*!
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\qmlsignal AreaSeries::onClicked(QPointF point)
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Signal is emitted when user clicks the \a point on area chart.
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*/
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/*!
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\fn void QAreaSeries::hovered(const QPointF &point, bool state)
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This signal is emitted when user has hovered over or away from the series. \a point shows the origin (coordinate)
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of the hover event. \a state is true when user has hovered over the series and false when hover has moved away from
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the series.
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*/
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/*!
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\qmlsignal AreaSeries::onHovered(point point, bool state)
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This signal is emitted when user has hovered over or away from the series. \a point shows the origin (coordinate)
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of the hover event. \a state is true when user has hovered over the series and false when hover has moved away from
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the series.
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*/
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/*!
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\fn void QAreaSeries::selected()
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The signal is emitted if the user selects/deselects the XY series. The logic for maintaining selections should be
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implemented by the user of QAreaSeries API.
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*/
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/*!
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\qmlsignal AreaSeries::onSelected()
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The signal is emitted if the user selects/deselects the XY series. The logic for maintaining selections should be
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implemented by the user of AreaSeries API.
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*/
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/*!
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\fn void QAreaSeriesPrivate::updated()
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\brief \internal
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*/
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/*!
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\property QAreaSeries::pointLabelsFormat
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The \a format used for showing labels with series points.
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QAreaSeries supports the following format tags:
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\table
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\row
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\li @xPoint \li The x value of the data point
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\row
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\li @yPoint \li The y value of the data point
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\endtable
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For example, the following usage of the format tags would produce labels that have the data
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point (x, y) shown inside brackets separated by a comma:
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\code
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series->setPointLabelsFormat("(@xPoint, @yPoint)");
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\endcode
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By default, the labels format is set to '@xPoint, @yPoint'. The labels are shown on the plot
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area, labels on the edge of the plot area are cut. If the points are close to each other the
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labels may overlap.
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\sa QAreaSeries::pointLabelsVisible, QAreaSeries::pointLabelsFont, QAreaSeries::pointLabelsColor
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*/
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/*!
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\qmlproperty string AreaSeries::pointLabelsFormat
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The \a format used for showing labels with series points.
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\sa QAreaSeries::pointLabelsFormat, pointLabelsVisible, pointLabelsFont, pointLabelsColor
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*/
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/*!
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\fn void QAreaSeries::pointLabelsFormatChanged(const QString &format)
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Signal is emitted when the \a format of data point labels is changed.
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*/
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/*!
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\qmlsignal AreaSeries::onPointLabelsFormatChanged(string format)
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Signal is emitted when the \a format of data point labels is changed.
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*/
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/*!
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\property QAreaSeries::pointLabelsVisible
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Defines the visibility for data point labels. False by default.
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\sa QAreaSeries::pointLabelsFormat
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*/
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/*!
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\qmlproperty bool AreaSeries::pointLabelsVisible
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Defines the visibility for data point labels.
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\sa pointLabelsFormat
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*/
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/*!
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\fn void QAreaSeries::pointLabelsVisibilityChanged(bool visible)
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The visibility of the data point labels is changed to \a visible.
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*/
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/*!
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\qmlsignal AreaSeries::onPointLabelsVisibilityChanged(bool visible)
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The visibility of the data point labels is changed to \a visible.
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*/
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/*!
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\property QAreaSeries::pointLabelsFont
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Defines the font used for data point labels.
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\sa QAreaSeries::pointLabelsFormat
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*/
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/*!
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\qmlproperty font AreaSeries::pointLabelsFont
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Defines the font used for data point labels.
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\sa pointLabelsFormat
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*/
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/*!
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\fn void QAreaSeries::pointLabelsFontChanged(const QFont &font);
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The font used for data point labels is changed to \a font.
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*/
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/*!
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\qmlsignal AreaSeries::onPointLabelsFontChanged(Font font)
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The font used for data point labels is changed to \a font.
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*/
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/*!
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\property QAreaSeries::pointLabelsColor
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Defines the color used for data point labels. By default, the color is the color of the brush
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defined in theme for labels.
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\sa QAreaSeries::pointLabelsFormat
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*/
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/*!
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\qmlproperty font AreaSeries::pointLabelsColor
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Defines the color used for data point labels. By default, the color is the color of the brush
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defined in theme for labels.
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\sa pointLabelsFormat
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*/
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/*!
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\fn void QAreaSeries::pointLabelsColorChanged(const QColor &color);
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The color used for data point labels is changed to \a color.
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*/
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/*!
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\qmlsignal AreaSeries::onPointLabelsColorChanged(Color color)
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The color used for data point labels is changed to \a color.
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*/
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/*!
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Constructs area series object which is a child of \a upperSeries. Area will be spanned between \a
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upperSeries line and \a lowerSeries line. If no \a lowerSeries is passed to constructor, area is specified by axis x (y=0) instead.
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When series object is added to QChartView or QChart instance ownerships is transferred.
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*/
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QAreaSeries::QAreaSeries(QLineSeries *upperSeries, QLineSeries *lowerSeries)
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: QAbstractSeries(*new QAreaSeriesPrivate(upperSeries, lowerSeries, this), upperSeries)
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{
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}
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/*!
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Constructs area series object without upper or lower series with \a parent object.
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*/
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QAreaSeries::QAreaSeries(QObject *parent)
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: QAbstractSeries(*new QAreaSeriesPrivate(0, 0, this), parent)
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{
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}
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/*!
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Destroys the object.
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*/
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QAreaSeries::~QAreaSeries()
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{
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Q_D(QAreaSeries);
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if (d->m_chart)
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d->m_chart->removeSeries(this);
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}
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/*!
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Returns QAbstractSeries::SeriesTypeArea.
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*/
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QAbstractSeries::SeriesType QAreaSeries::type() const
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{
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return QAbstractSeries::SeriesTypeArea;
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}
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/*!
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Sets the \a series that is to be used as the area chart upper series.
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*/
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void QAreaSeries::setUpperSeries(QLineSeries *series)
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{
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Q_D(QAreaSeries);
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if (d->m_upperSeries != series)
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d->m_upperSeries = series;
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}
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QLineSeries *QAreaSeries::upperSeries() const
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{
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Q_D(const QAreaSeries);
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return d->m_upperSeries;
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}
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/*!
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Sets the \a series that is to be used as the area chart lower series.
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*/
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void QAreaSeries::setLowerSeries(QLineSeries *series)
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{
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Q_D(QAreaSeries);
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d->m_lowerSeries = series;
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}
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QLineSeries *QAreaSeries::lowerSeries() const
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{
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Q_D(const QAreaSeries);
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return d->m_lowerSeries;
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}
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/*!
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Sets \a pen used for drawing area outline.
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*/
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void QAreaSeries::setPen(const QPen &pen)
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{
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Q_D(QAreaSeries);
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if (d->m_pen != pen) {
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d->m_pen = pen;
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emit d->updated();
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}
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}
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QPen QAreaSeries::pen() const
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{
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Q_D(const QAreaSeries);
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if (d->m_pen == QChartPrivate::defaultPen())
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return QPen();
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else
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return d->m_pen;
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}
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/*!
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Sets \a brush used for filling the area.
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*/
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void QAreaSeries::setBrush(const QBrush &brush)
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{
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Q_D(QAreaSeries);
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if (d->m_brush != brush) {
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bool emitColorChanged = brush.color() != d->m_brush.color();
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d->m_brush = brush;
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emit d->updated();
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if (emitColorChanged)
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emit colorChanged(brush.color());
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}
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}
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QBrush QAreaSeries::brush() const
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{
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Q_D(const QAreaSeries);
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if (d->m_brush == QChartPrivate::defaultBrush())
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return QBrush();
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else
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return d->m_brush;
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}
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void QAreaSeries::setColor(const QColor &color)
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{
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QBrush b = brush();
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if (b == QBrush())
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b.setStyle(Qt::SolidPattern);
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b.setColor(color);
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setBrush(b);
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}
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QColor QAreaSeries::color() const
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{
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return brush().color();
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}
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void QAreaSeries::setBorderColor(const QColor &color)
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{
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QPen p = pen();
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if (p.color() != color) {
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p.setColor(color);
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setPen(p);
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emit borderColorChanged(color);
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}
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}
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QColor QAreaSeries::borderColor() const
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{
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return pen().color();
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}
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/*!
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Sets if data points are \a visible and should be drawn on line.
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*/
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void QAreaSeries::setPointsVisible(bool visible)
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{
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Q_D(QAreaSeries);
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if (d->m_pointsVisible != visible) {
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d->m_pointsVisible = visible;
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emit d->updated();
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}
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}
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/*!
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Returns if the points are drawn for this series.
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\sa setPointsVisible()
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*/
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bool QAreaSeries::pointsVisible() const
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{
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Q_D(const QAreaSeries);
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return d->m_pointsVisible;
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}
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void QAreaSeries::setPointLabelsFormat(const QString &format)
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{
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Q_D(QAreaSeries);
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if (d->m_pointLabelsFormat != format) {
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d->m_pointLabelsFormat = format;
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emit pointLabelsFormatChanged(format);
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}
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}
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QString QAreaSeries::pointLabelsFormat() const
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{
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Q_D(const QAreaSeries);
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return d->m_pointLabelsFormat;
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}
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void QAreaSeries::setPointLabelsVisible(bool visible)
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{
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Q_D(QAreaSeries);
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if (d->m_pointLabelsVisible != visible) {
|
|
|
d->m_pointLabelsVisible = visible;
|
|
|
emit pointLabelsVisibilityChanged(visible);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
bool QAreaSeries::pointLabelsVisible() const
|
|
|
{
|
|
|
Q_D(const QAreaSeries);
|
|
|
return d->m_pointLabelsVisible;
|
|
|
}
|
|
|
|
|
|
void QAreaSeries::setPointLabelsFont(const QFont &font)
|
|
|
{
|
|
|
Q_D(QAreaSeries);
|
|
|
if (d->m_pointLabelsFont != font) {
|
|
|
d->m_pointLabelsFont = font;
|
|
|
emit pointLabelsFontChanged(font);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
QFont QAreaSeries::pointLabelsFont() const
|
|
|
{
|
|
|
Q_D(const QAreaSeries);
|
|
|
return d->m_pointLabelsFont;
|
|
|
}
|
|
|
|
|
|
void QAreaSeries::setPointLabelsColor(const QColor &color)
|
|
|
{
|
|
|
Q_D(QAreaSeries);
|
|
|
if (d->m_pointLabelsColor != color) {
|
|
|
d->m_pointLabelsColor = color;
|
|
|
emit pointLabelsColorChanged(color);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
QColor QAreaSeries::pointLabelsColor() const
|
|
|
{
|
|
|
Q_D(const QAreaSeries);
|
|
|
if (d->m_pointLabelsColor == QChartPrivate::defaultPen().color())
|
|
|
return QPen().color();
|
|
|
else
|
|
|
return d->m_pointLabelsColor;
|
|
|
}
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
QAreaSeriesPrivate::QAreaSeriesPrivate(QLineSeries *upperSeries, QLineSeries *lowerSeries, QAreaSeries *q)
|
|
|
: QAbstractSeriesPrivate(q),
|
|
|
m_brush(QChartPrivate::defaultBrush()),
|
|
|
m_pen(QChartPrivate::defaultPen()),
|
|
|
m_upperSeries(upperSeries),
|
|
|
m_lowerSeries(lowerSeries),
|
|
|
m_pointsVisible(false),
|
|
|
m_pointLabelsFormat(QLatin1String("@xPoint, @yPoint")),
|
|
|
m_pointLabelsVisible(false),
|
|
|
m_pointLabelsFont(QChartPrivate::defaultFont()),
|
|
|
m_pointLabelsColor(QChartPrivate::defaultPen().color())
|
|
|
{
|
|
|
}
|
|
|
|
|
|
void QAreaSeriesPrivate::initializeDomain()
|
|
|
{
|
|
|
Q_Q(QAreaSeries);
|
|
|
|
|
|
qreal minX(domain()->minX());
|
|
|
qreal minY(domain()->minY());
|
|
|
qreal maxX(domain()->maxX());
|
|
|
qreal maxY(domain()->maxY());
|
|
|
|
|
|
QLineSeries *upperSeries = q->upperSeries();
|
|
|
QLineSeries *lowerSeries = q->lowerSeries();
|
|
|
|
|
|
if (upperSeries) {
|
|
|
const QList<QPointF>& points = upperSeries->points();
|
|
|
|
|
|
for (int i = 0; i < points.count(); i++) {
|
|
|
qreal x = points[i].x();
|
|
|
qreal y = points[i].y();
|
|
|
minX = qMin(minX, x);
|
|
|
minY = qMin(minY, y);
|
|
|
maxX = qMax(maxX, x);
|
|
|
maxY = qMax(maxY, y);
|
|
|
}
|
|
|
}
|
|
|
if (lowerSeries) {
|
|
|
|
|
|
const QList<QPointF>& points = lowerSeries->points();
|
|
|
|
|
|
for (int i = 0; i < points.count(); i++) {
|
|
|
qreal x = points[i].x();
|
|
|
qreal y = points[i].y();
|
|
|
minX = qMin(minX, x);
|
|
|
minY = qMin(minY, y);
|
|
|
maxX = qMax(maxX, x);
|
|
|
maxY = qMax(maxY, y);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
domain()->setRange(minX, maxX, minY, maxY);
|
|
|
}
|
|
|
|
|
|
void QAreaSeriesPrivate::initializeGraphics(QGraphicsItem* parent)
|
|
|
{
|
|
|
Q_Q(QAreaSeries);
|
|
|
AreaChartItem *area = new AreaChartItem(q,parent);
|
|
|
m_item.reset(area);
|
|
|
QAbstractSeriesPrivate::initializeGraphics(parent);
|
|
|
}
|
|
|
void QAreaSeriesPrivate::initializeAnimations(QChart::AnimationOptions options)
|
|
|
{
|
|
|
Q_Q(QAreaSeries);
|
|
|
AreaChartItem *area = static_cast<AreaChartItem *>(m_item.data());
|
|
|
|
|
|
if (q->upperSeries() && area->upperLineItem()->animation())
|
|
|
area->upperLineItem()->animation()->stopAndDestroyLater();
|
|
|
if (q->lowerSeries() && area->lowerLineItem()->animation())
|
|
|
area->lowerLineItem()->animation()->stopAndDestroyLater();
|
|
|
|
|
|
if (options.testFlag(QChart::SeriesAnimations)) {
|
|
|
area->upperLineItem()->setAnimation(new XYAnimation(area->upperLineItem()));
|
|
|
if (q->lowerSeries())
|
|
|
area->lowerLineItem()->setAnimation(new XYAnimation(area->lowerLineItem()));
|
|
|
} else {
|
|
|
if (q->upperSeries())
|
|
|
area->upperLineItem()->setAnimation(0);
|
|
|
if (q->lowerSeries())
|
|
|
area->lowerLineItem()->setAnimation(0);
|
|
|
}
|
|
|
QAbstractSeriesPrivate::initializeAnimations(options);
|
|
|
}
|
|
|
|
|
|
QList<QLegendMarker*> QAreaSeriesPrivate::createLegendMarkers(QLegend* legend)
|
|
|
{
|
|
|
Q_Q(QAreaSeries);
|
|
|
QList<QLegendMarker*> list;
|
|
|
return list << new QAreaLegendMarker(q,legend);
|
|
|
}
|
|
|
|
|
|
|
|
|
void QAreaSeriesPrivate::initializeAxes()
|
|
|
{
|
|
|
|
|
|
}
|
|
|
|
|
|
QAbstractAxis::AxisType QAreaSeriesPrivate::defaultAxisType(Qt::Orientation orientation) const
|
|
|
{
|
|
|
Q_UNUSED(orientation);
|
|
|
return QAbstractAxis::AxisTypeValue;
|
|
|
}
|
|
|
|
|
|
QAbstractAxis* QAreaSeriesPrivate::createDefaultAxis(Qt::Orientation orientation) const
|
|
|
{
|
|
|
Q_UNUSED(orientation);
|
|
|
return new QValueAxis;
|
|
|
}
|
|
|
|
|
|
void QAreaSeriesPrivate::initializeTheme(int index, ChartTheme* theme, bool forced)
|
|
|
{
|
|
|
Q_Q(QAreaSeries);
|
|
|
|
|
|
const QList<QGradient> gradients = theme->seriesGradients();
|
|
|
const QList<QColor> colors = theme->seriesColors();
|
|
|
|
|
|
if (forced || QChartPrivate::defaultPen() == m_pen) {
|
|
|
QPen pen;
|
|
|
pen.setColor(ChartThemeManager::colorAt(gradients.at(index % gradients.size()), 0.0));
|
|
|
pen.setWidthF(2);
|
|
|
q->setPen(pen);
|
|
|
}
|
|
|
|
|
|
if (forced || QChartPrivate::defaultBrush() == m_brush) {
|
|
|
QBrush brush(colors.at(index % colors.size()));
|
|
|
q->setBrush(brush);
|
|
|
}
|
|
|
|
|
|
if (forced || QChartPrivate::defaultPen().color() == m_pointLabelsColor) {
|
|
|
QColor color = theme->labelBrush().color();
|
|
|
q->setPointLabelsColor(color);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
|
|
|
#include "moc_qareaseries.cpp"
|
|
|
#include "moc_qareaseries_p.cpp"
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
