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/****************************************************************************
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**
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** Copyright (C) 2012 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 Commercial Charts Add-on.
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**
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** $QT_BEGIN_LICENSE$
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial 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 "declarativechart.h"
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#include <QPainter>
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#include "declarativelineseries.h"
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#include "declarativeareaseries.h"
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#include "declarativebarseries.h"
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#include "declarativepieseries.h"
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#include "declarativesplineseries.h"
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#include "declarativescatterseries.h"
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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/*!
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\qmlclass ChartView DeclarativeChart
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ChartView element is the parent that is responsible for showing different chart series types.
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The following QML shows how to create a simple chart with one pie series:
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\snippet ../examples/qmlpiechart/qml/qmlpiechart/main.qml 1
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\snippet ../examples/qmlpiechart/qml/qmlpiechart/main.qml 2
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\snippet ../examples/qmlpiechart/qml/qmlpiechart/main.qml 3
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\beginfloatleft
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\image examples_qmlpiechart.png
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\endfloat
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\clearfloat
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*/
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/*!
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\qmlproperty Theme ChartView::theme
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Theme defines the visual appearance of the chart, including for example colors, fonts, line
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widths and chart background.
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*/
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/*!
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\qmlproperty Animation ChartView::animation
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Animation configuration of the chart. One of ChartView.NoAnimation, ChartView.GridAxisAnimations,
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ChartView.SeriesAnimations or ChartView.AllAnimations.
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*/
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/*!
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\qmlproperty Font ChartView::titleFont
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The title font of the chart
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See the \l {Font} {QML Font Element} for detailed documentation.
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*/
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/*!
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\qmlproperty string ChartView::title
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The title of the chart, shown on top of the chart.
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\sa ChartView::titleColor
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*/
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/*!
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\qmlproperty string ChartView::titleColor
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The color of the title text.
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*/
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/*!
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\qmlproperty Axis ChartView::axisX
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The x-axis of the chart.
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*/
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/*!
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\qmlproperty Axis ChartView::axisY
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The default y-axis of the chart.
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*/
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/*!
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\qmlproperty Legend ChartView::legend
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The legend of the chart. Legend lists all the series, pie slices and bar sets added on the chart.
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*/
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/*!
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\qmlproperty int ChartView::count
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The count of series added to the chart.
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*/
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/*!
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\qmlproperty color ChartView::backgroundColor
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The color of the chart's background. By default background color is defined by chart theme.
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\sa ChartView::theme
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*/
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/*!
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\qmlproperty bool ChartView::dropShadowEnabled
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The chart's border drop shadow. Set to true to enable drop shadow.
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*/
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/*!
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\qmlproperty real ChartView::topMargin
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The space between the top of chart view and the top of the plot area. The title (if non-empty) is drawn on top margin
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area of the chart view. Top margin area is also used by legend, if aligned to top.
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*/
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/*!
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\qmlproperty real ChartView::bottomMargin
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The space between the bottom of chart view and the bottom of the plot area. The bottom margin area may be used by
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legend (if aligned to bottom), x-axis, x-axis labels and x-axis tick marks.
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*/
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/*!
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\qmlproperty real ChartView::leftMargin
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The space between the left side of chart view and the left side of the plot area. The left margin area may be used by
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legend (if aligned to left), y-axis, y-axis labels and y-axis tick marks.
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*/
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/*!
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\qmlproperty real ChartView::rightMargin
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The space between the right side of chart view and the right side of the plot area. The right margin area may be used
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by legend (if aligned to right).
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*/
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/*!
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\qmlmethod AbstractSeries ChartView::series(int index)
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Returns the series with \a index on the chart. This allows you to loop through the series of a chart together with
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the count property of the chart.
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*/
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/*!
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\qmlmethod AbstractSeries ChartView::series(string name)
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Returns the first series on the chart with \a name. If there is no series with that name, returns null.
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*/
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/*!
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\qmlmethod AbstractSeries ChartView::createSeries(SeriesType type, string name)
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Creates a series object of \a type to the chart. For example:
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\code
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var scatter = chartView.createSeries(ChartView.SeriesTypeScatter, "scatter series");
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scatter.markerSize = 22;
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scatter.append(1.1, 2.0);
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\endcode
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*/
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/*!
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\qmlmethod Axis ChartView::axisY(QAbstractSeries *series)
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The y-axis of the series. This is the same as the default y-axis of the chart as multiple y-axes are not yet supported.
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*/
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/*!
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\qmlmethod ChartView::zoomY(real factor)
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Zooms in by \a factor on the center of the chart.
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*/
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/*!
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\qmlmethod ChartView::scrollLeft(real pixels)
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Scrolls to left by \a pixels. This is a convenience function that suits for example for key navigation.
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\sa Axis::min, Axis::max
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*/
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/*!
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\qmlmethod ChartView::scrollRight(real pixels)
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Scrolls to right by \a pixels. This is a convenience function that suits for example for key navigation.
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\sa Axis::min, Axis::max
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*/
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/*!
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\qmlmethod ChartView::scrollUp(real pixels)
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Scrolls up by \a pixels. This is a convenience function that suits for example for key navigation.
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\sa Axis::min, Axis::max
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*/
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/*!
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\qmlmethod ChartView::scrollDown(real pixels)
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Scrolls down by \a pixels. This is a convenience function that suits for example for key navigation.
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\sa Axis::min, Axis::max
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*/
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/*!
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\qmlsignal ChartView::onTopMarginChanged(real margin)
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The top margin of the chart view has changed to \a margin. This may happen for example if you modify font size
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related properties of the legend or chart title.
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*/
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/*!
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\qmlsignal ChartView::onBottomMarginChanged(real margin)
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The bottom margin of the chart view has changed to \a margin. This may happen for example if you modify font size
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related properties of the legend or chart title.
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*/
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/*!
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\qmlsignal ChartView::onLeftMarginChanged(real margin)
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The left margin of the chart view has changed to \a margin. This may happen for example if you modify font size
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related properties of the legend or chart title.
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*/
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/*!
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\qmlsignal ChartView::onRightMarginChanged(real margin)
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The right margin of the chart view has changed to \a margin. This may happen for example if you modify font size
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related properties of the legend or chart title.
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*/
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DeclarativeChart::DeclarativeChart(QDeclarativeItem *parent)
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: QDeclarativeItem(parent),
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m_chart(new QChart(this))
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{
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setFlag(QGraphicsItem::ItemHasNoContents, false);
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// m_chart->axisX()->setNiceNumbersEnabled(false);
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m_chartMargins = m_chart->margins();
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connect(m_chart, SIGNAL(marginsChanged(QRectF)), this, SLOT(handleMarginsChanged(QRectF)));
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}
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void DeclarativeChart::handleMarginsChanged(QRectF newMargins)
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{
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if (m_chartMargins.top() != newMargins.top())
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topMarginChanged(m_chart->margins().top());
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if (m_chartMargins.bottom() != newMargins.bottom())
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bottomMarginChanged(m_chart->margins().bottom());
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if (m_chartMargins.left() != newMargins.left())
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leftMarginChanged(m_chart->margins().left());
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if (m_chartMargins.right() != newMargins.right())
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rightMarginChanged(m_chart->margins().right());
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m_chartMargins = m_chart->margins();
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}
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DeclarativeChart::~DeclarativeChart()
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{
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delete m_chart;
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}
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void DeclarativeChart::childEvent(QChildEvent *event)
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{
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if (event->type() == QEvent::ChildAdded) {
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if (qobject_cast<QAbstractSeries *>(event->child())) {
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m_chart->addSeries(qobject_cast<QAbstractSeries *>(event->child()));
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}
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}
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}
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void DeclarativeChart::componentComplete()
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{
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foreach(QObject *child, children()) {
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if (qobject_cast<QAbstractSeries *>(child)) {
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// qDebug() << "DeclarativeChart::componentComplete(), add: " << child;
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// TODO: how about optional y-axis?
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m_chart->addSeries(qobject_cast<QAbstractSeries *>(child));
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}
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}
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QDeclarativeItem::componentComplete();
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}
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void DeclarativeChart::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry)
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{
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// qDebug() << "DeclarativeChart::geometryChanged" << newGeometry.width() << newGeometry.height();
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if (newGeometry.isValid()) {
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if (newGeometry.width() > 0 && newGeometry.height() > 0) {
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m_chart->resize(newGeometry.width(), newGeometry.height());
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}
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}
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QDeclarativeItem::geometryChanged(newGeometry, oldGeometry);
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}
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void DeclarativeChart::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
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{
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Q_UNUSED(option)
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Q_UNUSED(widget)
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// TODO: optimized?
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painter->setRenderHint(QPainter::Antialiasing, true);
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}
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void DeclarativeChart::setTheme(DeclarativeChart::Theme theme)
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{
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QChart::ChartTheme chartTheme = (QChart::ChartTheme) theme;
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if (chartTheme != m_chart->theme())
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m_chart->setTheme(chartTheme);
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}
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DeclarativeChart::Theme DeclarativeChart::theme()
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{
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return (DeclarativeChart::Theme) m_chart->theme();
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}
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void DeclarativeChart::setAnimationOptions(DeclarativeChart::Animation animations)
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{
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QChart::AnimationOption animationOptions = (QChart::AnimationOption) animations;
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if (animationOptions != m_chart->animationOptions())
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m_chart->setAnimationOptions(animationOptions);
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}
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DeclarativeChart::Animation DeclarativeChart::animationOptions()
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{
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if (m_chart->animationOptions().testFlag(QChart::AllAnimations))
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return DeclarativeChart::AllAnimations;
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else if (m_chart->animationOptions().testFlag(QChart::GridAxisAnimations))
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return DeclarativeChart::GridAxisAnimations;
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else if (m_chart->animationOptions().testFlag(QChart::SeriesAnimations))
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return DeclarativeChart::SeriesAnimations;
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else
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return DeclarativeChart::NoAnimation;
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}
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void DeclarativeChart::setTitle(QString title)
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{
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if (title != m_chart->title())
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m_chart->setTitle(title);
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}
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QString DeclarativeChart::title()
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{
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return m_chart->title();
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}
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QAxis *DeclarativeChart::axisX()
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{
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return m_chart->axisX();
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}
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QAxis *DeclarativeChart::axisY(QAbstractSeries *series)
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{
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return m_chart->axisY(series);
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}
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QLegend *DeclarativeChart::legend()
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{
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return m_chart->legend();
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}
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QVariantList DeclarativeChart::axisXLabels()
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{
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QVariantList labels;
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foreach (qreal value, m_chart->axisX()->categories()->values()) {
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labels.append(value);
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labels.append(m_chart->axisX()->categories()->label(value));
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}
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return labels;
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}
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void DeclarativeChart::setAxisXLabels(QVariantList list)
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{
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QVariant value(QVariant::Invalid);
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foreach (QVariant element, list) {
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if (value.isValid() && element.type() == QVariant::String) {
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m_chart->axisX()->categories()->insert(value.toDouble(), element.toString());
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value = QVariant(QVariant::Invalid);
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} else {
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if (element.canConvert(QVariant::Double))
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value = element;
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}
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}
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emit axisLabelsChanged();
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}
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void DeclarativeChart::setTitleColor(QColor color)
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{
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QBrush b = m_chart->titleBrush();
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if (color != b.color()) {
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b.setColor(color);
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m_chart->setTitleBrush(b);
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emit titleColorChanged(color);
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}
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}
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QFont DeclarativeChart::titleFont() const
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{
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return m_chart->titleFont();
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}
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void DeclarativeChart::setTitleFont(const QFont& font)
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{
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m_chart->setTitleFont(font);
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}
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QColor DeclarativeChart::titleColor()
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{
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return m_chart->titleBrush().color();
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}
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void DeclarativeChart::setBackgroundColor(QColor color)
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{
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QBrush b = m_chart->backgroundBrush();
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if (b.style() != Qt::SolidPattern || color != b.color()) {
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b.setStyle(Qt::SolidPattern);
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b.setColor(color);
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m_chart->setBackgroundBrush(b);
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emit backgroundColorChanged();
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}
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}
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QColor DeclarativeChart::backgroundColor()
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{
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return m_chart->backgroundBrush().color();
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}
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int DeclarativeChart::count()
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{
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return m_chart->series().count();
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}
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void DeclarativeChart::setDropShadowEnabled(bool enabled)
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{
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if (enabled != m_chart->isDropShadowEnabled()) {
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m_chart->setDropShadowEnabled(enabled);
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dropShadowEnabledChanged(enabled);
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}
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}
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bool DeclarativeChart::dropShadowEnabled()
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{
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return m_chart->isDropShadowEnabled();
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}
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qreal DeclarativeChart::topMargin()
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{
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return m_chart->margins().top();
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}
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qreal DeclarativeChart::bottomMargin()
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{
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return m_chart->margins().bottom();
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}
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qreal DeclarativeChart::leftMargin()
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{
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return m_chart->margins().left();
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}
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qreal DeclarativeChart::rightMargin()
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{
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return m_chart->margins().right();
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}
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void DeclarativeChart::zoom(qreal factor)
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{
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m_chart->zoom(factor);
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}
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void DeclarativeChart::scrollLeft(qreal pixels)
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{
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m_chart->scroll(QPointF(pixels, 0));
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}
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void DeclarativeChart::scrollRight(qreal pixels)
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{
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m_chart->scroll(QPointF(-pixels, 0));
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}
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void DeclarativeChart::scrollUp(qreal pixels)
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{
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m_chart->scroll(QPointF(0, pixels));
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}
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void DeclarativeChart::scrollDown(qreal pixels)
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{
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m_chart->scroll(QPointF(0, -pixels));
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}
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QAbstractSeries *DeclarativeChart::series(int index)
|
|
|
{
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|
if (index < m_chart->series().count()) {
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return m_chart->series().at(index);
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}
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return 0;
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}
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QAbstractSeries *DeclarativeChart::series(QString seriesName)
|
|
|
{
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|
foreach(QAbstractSeries *series, m_chart->series()) {
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|
if (series->name() == seriesName)
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|
return series;
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|
}
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return 0;
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}
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QAbstractSeries *DeclarativeChart::createSeries(DeclarativeChart::SeriesType type, QString name)
|
|
|
{
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|
QAbstractSeries *series = 0;
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|
|
switch (type) {
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|
case DeclarativeChart::SeriesTypeLine:
|
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|
series = new DeclarativeLineSeries();
|
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|
break;
|
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|
case DeclarativeChart::SeriesTypeArea:
|
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|
series = new DeclarativeAreaSeries();
|
|
|
break;
|
|
|
case DeclarativeChart::SeriesTypeBar:
|
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|
series = new DeclarativeBarSeries();
|
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|
break;
|
|
|
case DeclarativeChart::SeriesTypeStackedBar:
|
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|
// TODO
|
|
|
break;
|
|
|
case DeclarativeChart::SeriesTypePercentBar:
|
|
|
// TODO
|
|
|
break;
|
|
|
case DeclarativeChart::SeriesTypeGroupedBar:
|
|
|
series = new DeclarativeGroupedBarSeries();
|
|
|
break;
|
|
|
case DeclarativeChart::SeriesTypePie:
|
|
|
series = new DeclarativePieSeries();
|
|
|
break;
|
|
|
case DeclarativeChart::SeriesTypeScatter:
|
|
|
series = new DeclarativeScatterSeries();
|
|
|
break;
|
|
|
case DeclarativeChart::SeriesTypeSpline:
|
|
|
series = new DeclarativeSplineSeries();
|
|
|
break;
|
|
|
default:
|
|
|
qWarning() << "Illegal series type";
|
|
|
}
|
|
|
series->setName(name);
|
|
|
m_chart->addSeries(series);
|
|
|
return series;
|
|
|
}
|
|
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|
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#include "moc_declarativechart.cpp"
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QTCOMMERCIALCHART_END_NAMESPACE
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|
