declarativechart.cpp
375 lines
| 10.0 KiB
| text/x-c
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CppLexer
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r830 | /**************************************************************************** | ||
** | ||||
** Copyright (C) 2012 Digia Plc | ||||
** 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 | ||||
** $QT_END_LICENSE$ | ||||
** | ||||
****************************************************************************/ | ||||
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r1 | #include "declarativechart.h" | ||
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r660 | #include <QPainter> | ||
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r1240 | #include "declarativelineseries.h" | ||
#include "declarativeareaseries.h" | ||||
#include "declarativebarseries.h" | ||||
#include "declarativepieseries.h" | ||||
#include "declarativesplineseries.h" | ||||
#include "declarativescatterseries.h" | ||||
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r1 | |||
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r120 | QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||
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r1443 | /*! | ||
\qmlclass ChartView DeclarativeChart | ||||
ChartView element is the parent that is responsible for showing different chart series types. | ||||
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r1491 | The following QML shows how to create a simple chart with one pie series: | ||
\snippet ../examples/qmlpiechart/qml/qmlpiechart/main.qml 1 | ||||
\snippet ../examples/qmlpiechart/qml/qmlpiechart/main.qml 2 | ||||
\snippet ../examples/qmlpiechart/qml/qmlpiechart/main.qml 3 | ||||
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r1443 | |||
\beginfloatleft | ||||
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r1491 | \image examples_qmlpiechart.png | ||
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r1443 | \endfloat | ||
\clearfloat | ||||
*/ | ||||
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r1462 | /*! | ||
\qmlproperty Theme ChartView::theme | ||||
Theme defines the visual appearance of the chart, including for example colors, fonts, line | ||||
widths and chart background. | ||||
*/ | ||||
/*! | ||||
\qmlproperty Animation ChartView::animation | ||||
Animation configuration of the chart. One of ChartView.NoAnimation, ChartView.GridAxisAnimations, | ||||
ChartView.SeriesAnimations or ChartView.AllAnimations. | ||||
*/ | ||||
/*! | ||||
\qmlproperty string ChartView::title | ||||
The title of the chart, shown on top of the chart. | ||||
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r1473 | \sa ChartView::titleColor | ||
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r1462 | */ | ||
/*! | ||||
\qmlproperty string ChartView::titleColor | ||||
The color of the title text. | ||||
*/ | ||||
/*! | ||||
\qmlproperty Axis ChartView::axisX | ||||
The x-axis of the chart. | ||||
*/ | ||||
/*! | ||||
\qmlproperty Axis ChartView::axisY | ||||
The default y-axis of the chart. | ||||
*/ | ||||
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r1473 | /*! | ||
\qmlproperty Legend ChartView::legend | ||||
The legend of the chart. Legend lists all the series, pie slices and bar sets added on the chart. | ||||
*/ | ||||
/*! | ||||
\qmlproperty int ChartView::count | ||||
The count of series added to the chart. | ||||
*/ | ||||
/*! | ||||
\qmlproperty color ChartView::backgroundColor | ||||
The color of the chart's background. By default background color is defined by chart theme. | ||||
\sa ChartView::theme | ||||
*/ | ||||
/*! | ||||
\qmlproperty bool ChartView::dropShadowEnabled | ||||
The chart's border drop shadow. Set to true to enable drop shadow. | ||||
*/ | ||||
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r1462 | /*! | ||
\qmlmethod Axis ChartView::axisY(QAbstractSeries *series) | ||||
The y-axis of the series. This is the same as the default y-axis of the chart, unless you have | ||||
explicitly defined the series to have a non-default y-axis. | ||||
*/ | ||||
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r1 | DeclarativeChart::DeclarativeChart(QDeclarativeItem *parent) | ||
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r120 | : QDeclarativeItem(parent), | ||
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r1357 | m_chart(new QChart(this)) | ||
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r1 | { | ||
setFlag(QGraphicsItem::ItemHasNoContents, false); | ||||
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r1278 | // m_chart->axisX()->setNiceNumbersEnabled(false); | ||
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r1 | } | ||
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r722 | DeclarativeChart::~DeclarativeChart() | ||
{ | ||||
delete m_chart; | ||||
} | ||||
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r1117 | void DeclarativeChart::childEvent(QChildEvent *event) | ||
{ | ||||
if (event->type() == QEvent::ChildAdded) { | ||||
if (qobject_cast<QAbstractSeries *>(event->child())) { | ||||
m_chart->addSeries(qobject_cast<QAbstractSeries *>(event->child())); | ||||
} | ||||
} | ||||
} | ||||
void DeclarativeChart::componentComplete() | ||||
{ | ||||
foreach(QObject *child, children()) { | ||||
if (qobject_cast<QAbstractSeries *>(child)) { | ||||
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r1259 | // qDebug() << "DeclarativeChart::componentComplete(), add: " << child; | ||
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r1462 | // TODO: how about optional y-axis? | ||
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r1117 | m_chart->addSeries(qobject_cast<QAbstractSeries *>(child)); | ||
} | ||||
} | ||||
QDeclarativeItem::componentComplete(); | ||||
} | ||||
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r120 | void DeclarativeChart::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry) | ||
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r1 | { | ||
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r1139 | // qDebug() << "DeclarativeChart::geometryChanged" << newGeometry.width() << newGeometry.height(); | ||
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r200 | if (newGeometry.isValid()) { | ||
if (newGeometry.width() > 0 && newGeometry.height() > 0) { | ||||
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r642 | m_chart->resize(newGeometry.width(), newGeometry.height()); | ||
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r200 | } | ||
} | ||||
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r1298 | QDeclarativeItem::geometryChanged(newGeometry, oldGeometry); | ||
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r1 | } | ||
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r646 | void DeclarativeChart::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) | ||
{ | ||||
Q_UNUSED(option) | ||||
Q_UNUSED(widget) | ||||
// TODO: optimized? | ||||
painter->setRenderHint(QPainter::Antialiasing, true); | ||||
} | ||||
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r1240 | void DeclarativeChart::setTheme(DeclarativeChart::Theme theme) | ||
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r1094 | { | ||
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r1357 | QChart::ChartTheme chartTheme = (QChart::ChartTheme) theme; | ||
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r1481 | if (chartTheme != m_chart->theme()) | ||
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r1357 | m_chart->setTheme(chartTheme); | ||
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r1094 | } | ||
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r1240 | DeclarativeChart::Theme DeclarativeChart::theme() | ||
{ | ||||
return (DeclarativeChart::Theme) m_chart->theme(); | ||||
} | ||||
void DeclarativeChart::setAnimationOptions(DeclarativeChart::Animation animations) | ||||
{ | ||||
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r1357 | QChart::AnimationOption animationOptions = (QChart::AnimationOption) animations; | ||
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r1481 | if (animationOptions != m_chart->animationOptions()) | ||
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r1357 | m_chart->setAnimationOptions(animationOptions); | ||
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r1240 | } | ||
DeclarativeChart::Animation DeclarativeChart::animationOptions() | ||||
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r1094 | { | ||
if (m_chart->animationOptions().testFlag(QChart::AllAnimations)) | ||||
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r1240 | return DeclarativeChart::AllAnimations; | ||
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r1094 | else if (m_chart->animationOptions().testFlag(QChart::GridAxisAnimations)) | ||
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r1240 | return DeclarativeChart::GridAxisAnimations; | ||
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r1094 | else if (m_chart->animationOptions().testFlag(QChart::SeriesAnimations)) | ||
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r1240 | return DeclarativeChart::SeriesAnimations; | ||
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r1094 | else | ||
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r1240 | return DeclarativeChart::NoAnimation; | ||
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r1094 | } | ||
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r1357 | void DeclarativeChart::setTitle(QString title) | ||
{ | ||||
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r1481 | if (title != m_chart->title()) | ||
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r1357 | m_chart->setTitle(title); | ||
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r1095 | } | ||
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r1357 | QString DeclarativeChart::title() | ||
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r1095 | { | ||
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r1357 | return m_chart->title(); | ||
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r1095 | } | ||
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r1139 | QAxis *DeclarativeChart::axisX() | ||
{ | ||||
return m_chart->axisX(); | ||||
} | ||||
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r1462 | QAxis *DeclarativeChart::axisY(QAbstractSeries *series) | ||
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r1139 | { | ||
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r1462 | return m_chart->axisY(series); | ||
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r1139 | } | ||
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r1357 | QLegend *DeclarativeChart::legend() | ||
{ | ||||
return m_chart->legend(); | ||||
} | ||||
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r1157 | QVariantList DeclarativeChart::axisXLabels() | ||
{ | ||||
QVariantList labels; | ||||
foreach (qreal value, m_chart->axisX()->categories()->values()) { | ||||
labels.append(value); | ||||
labels.append(m_chart->axisX()->categories()->label(value)); | ||||
} | ||||
return labels; | ||||
} | ||||
void DeclarativeChart::setAxisXLabels(QVariantList list) | ||||
{ | ||||
QVariant value(QVariant::Invalid); | ||||
foreach (QVariant element, list) { | ||||
if (value.isValid() && element.type() == QVariant::String) { | ||||
m_chart->axisX()->categories()->insert(value.toDouble(), element.toString()); | ||||
value = QVariant(QVariant::Invalid); | ||||
} else { | ||||
if (element.canConvert(QVariant::Double)) | ||||
value = element; | ||||
} | ||||
} | ||||
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r1357 | emit axisLabelsChanged(); | ||
} | ||||
void DeclarativeChart::setTitleColor(QColor color) | ||||
{ | ||||
QBrush b = m_chart->titleBrush(); | ||||
if (color != b.color()) { | ||||
b.setColor(color); | ||||
m_chart->setTitleBrush(b); | ||||
emit titleColorChanged(); | ||||
} | ||||
} | ||||
QColor DeclarativeChart::titleColor() | ||||
{ | ||||
return m_chart->titleBrush().color(); | ||||
} | ||||
void DeclarativeChart::setBackgroundColor(QColor color) | ||||
{ | ||||
QBrush b = m_chart->backgroundBrush(); | ||||
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r1473 | if (b.style() != Qt::SolidPattern || color != b.color()) { | ||
b.setStyle(Qt::SolidPattern); | ||||
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r1357 | b.setColor(color); | ||
m_chart->setBackgroundBrush(b); | ||||
emit backgroundColorChanged(); | ||||
} | ||||
} | ||||
QColor DeclarativeChart::backgroundColor() | ||||
{ | ||||
return m_chart->backgroundBrush().color(); | ||||
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r1157 | } | ||
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r1240 | int DeclarativeChart::count() | ||
{ | ||||
return m_chart->series().count(); | ||||
} | ||||
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r1461 | void DeclarativeChart::setDropShadowEnabled(bool enabled) | ||
{ | ||||
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r1462 | if (enabled != m_chart->isDropShadowEnabled()) { | ||
m_chart->setDropShadowEnabled(enabled); | ||||
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r1461 | dropShadowEnabledChanged(enabled); | ||
} | ||||
} | ||||
bool DeclarativeChart::dropShadowEnabled() | ||||
{ | ||||
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r1462 | return m_chart->isDropShadowEnabled(); | ||
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r1461 | } | ||
void DeclarativeChart::zoom(qreal factor) | ||||
{ | ||||
m_chart->zoom(factor); | ||||
} | ||||
void DeclarativeChart::scrollLeft(qreal pixels) | ||||
{ | ||||
m_chart->scroll(QPointF(pixels, 0)); | ||||
} | ||||
void DeclarativeChart::scrollRight(qreal pixels) | ||||
{ | ||||
m_chart->scroll(QPointF(-pixels, 0)); | ||||
} | ||||
void DeclarativeChart::scrollUp(qreal pixels) | ||||
{ | ||||
m_chart->scroll(QPointF(0, pixels)); | ||||
} | ||||
void DeclarativeChart::scrollDown(qreal pixels) | ||||
{ | ||||
m_chart->scroll(QPointF(0, -pixels)); | ||||
} | ||||
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r1240 | QAbstractSeries *DeclarativeChart::series(int index) | ||
{ | ||||
if (index < m_chart->series().count()) { | ||||
return m_chart->series().at(index); | ||||
} | ||||
return 0; | ||||
} | ||||
QAbstractSeries *DeclarativeChart::series(QString seriesName) | ||||
{ | ||||
foreach(QAbstractSeries *series, m_chart->series()) { | ||||
if (series->name() == seriesName) | ||||
return series; | ||||
} | ||||
return 0; | ||||
} | ||||
QAbstractSeries *DeclarativeChart::createSeries(DeclarativeChart::SeriesType type, QString name) | ||||
{ | ||||
QAbstractSeries *series = 0; | ||||
switch (type) { | ||||
case DeclarativeChart::SeriesTypeLine: | ||||
series = new DeclarativeLineSeries(); | ||||
break; | ||||
case DeclarativeChart::SeriesTypeArea: | ||||
series = new DeclarativeAreaSeries(); | ||||
break; | ||||
case DeclarativeChart::SeriesTypeBar: | ||||
series = new DeclarativeBarSeries(); | ||||
break; | ||||
case DeclarativeChart::SeriesTypeStackedBar: | ||||
// 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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r120 | #include "moc_declarativechart.cpp" | ||
QTCOMMERCIALCHART_END_NAMESPACE | ||||