##// END OF EJS Templates
Added a pie chart customization example and refactoring the pie interface.
Added a pie chart customization example and refactoring the pie interface.

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r427:82b3917abcdf merge
r437:8d9e377a1065
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chartpresenter.cpp
311 lines | 10.6 KiB | text/x-c | CppLexer
/ src / chartpresenter.cpp
#include "qchart.h"
#include "qchartaxis.h"
#include "chartpresenter_p.h"
#include "chartdataset_p.h"
#include "charttheme_p.h"
//series
#include "qbarseries.h"
#include "qstackedbarseries.h"
#include "qpercentbarseries.h"
#include "qlineseries.h"
#include "qareaseries.h"
#include "qpieseries.h"
#include "qscatterseries.h"
#include "qsplineseries.h"
//items
#include "axisitem_p.h"
#include "axisanimationitem_p.h"
#include "areachartitem_p.h"
#include "barpresenter_p.h"
#include "stackedbarpresenter_p.h"
#include "percentbarpresenter_p.h"
#include "linechartitem_p.h"
#include "linechartanimationitem_p.h"
#include "piepresenter_p.h"
#include "scatterpresenter_p.h"
#include "splinepresenter_p.h"
QTCOMMERCIALCHART_BEGIN_NAMESPACE
ChartPresenter::ChartPresenter(QChart* chart,ChartDataSet* dataset):QObject(chart),
m_chart(chart),
m_dataset(dataset),
m_chartTheme(0),
m_marginSize(0),
m_rect(QRectF(QPoint(0,0),m_chart->size())),
m_options(0)
{
createConnections();
setChartTheme(QChart::ChartThemeDefault);
}
ChartPresenter::~ChartPresenter()
{
}
void ChartPresenter::createConnections()
{
QObject::connect(m_chart,SIGNAL(geometryChanged()),this,SLOT(handleGeometryChanged()));
QObject::connect(m_dataset,SIGNAL(seriesAdded(QSeries*)),this,SLOT(handleSeriesAdded(QSeries*)));
QObject::connect(m_dataset,SIGNAL(seriesRemoved(QSeries*)),this,SLOT(handleSeriesRemoved(QSeries*)));
QObject::connect(m_dataset,SIGNAL(axisAdded(QChartAxis*)),this,SLOT(handleAxisAdded(QChartAxis*)));
QObject::connect(m_dataset,SIGNAL(axisRemoved(QChartAxis*)),this,SLOT(handleAxisRemoved(QChartAxis*)));
QObject::connect(m_dataset,SIGNAL(seriesDomainChanged(QSeries*,const Domain&)),this,SLOT(handleSeriesDomainChanged(QSeries*,const Domain&)));
QObject::connect(m_dataset,SIGNAL(axisRangeChanged(QChartAxis*,const QStringList&)),this,SLOT(handleAxisRangeChanged(QChartAxis*,const QStringList&)));
}
QRectF ChartPresenter::geometry() const
{
return m_rect;
}
void ChartPresenter::handleGeometryChanged()
{
m_rect = QRectF(QPoint(0,0),m_chart->size());
m_rect.adjust(m_marginSize,m_marginSize, -m_marginSize, -m_marginSize);
Q_ASSERT(m_rect.isValid());
emit geometryChanged(m_rect);
}
int ChartPresenter::margin() const
{
return m_marginSize;
}
void ChartPresenter::setMargin(int margin)
{
m_marginSize = margin;
}
void ChartPresenter::handleAxisAdded(QChartAxis* axis)
{
AxisItem* item ;
if(!m_options.testFlag(QChart::GridAxisAnimations))
{
item = new AxisItem(axis==m_dataset->axisX()?AxisItem::X_AXIS : AxisItem::Y_AXIS,m_chart);
}else{
item = new AxisAnimationItem(axis==m_dataset->axisX()?AxisItem::X_AXIS : AxisItem::Y_AXIS,m_chart);
}
QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),item,SLOT(handleGeometryChanged(const QRectF&)));
QObject::connect(axis,SIGNAL(update(QChartAxis*)),item,SLOT(handleAxisUpdate(QChartAxis*)));
item->handleAxisUpdate(axis);
item->handleGeometryChanged(m_rect);
m_chartTheme->decorate(axis,item);
m_axisItems.insert(axis,item);
}
void ChartPresenter::handleAxisRemoved(QChartAxis* axis)
{
AxisItem* item = m_axisItems.take(axis);
Q_ASSERT(item);
delete item;
}
void ChartPresenter::handleSeriesAdded(QSeries* series)
{
switch(series->type())
{
case QSeries::SeriesTypeLine: {
QLineSeries* lineSeries = static_cast<QLineSeries*>(series);
LineChartItem* item;
if(m_options.testFlag(QChart::SeriesAnimations)){
item = new LineChartAnimationItem(this,lineSeries,m_chart);
}else{
item = new LineChartItem(this,lineSeries,m_chart);
}
m_chartTheme->decorate(item,lineSeries,m_chartItems.count());
m_chartItems.insert(series,item);
if(m_rect.isValid()) item->handleGeometryChanged(m_rect);
break;
}
case QSeries::SeriesTypeArea: {
QAreaSeries* areaSeries = static_cast<QAreaSeries*>(series);
AreaChartItem* item;
if(m_options.testFlag(QChart::SeriesAnimations)) {
item = new AreaChartItem(this,areaSeries,m_chart);
}
else {
item = new AreaChartItem(this,areaSeries,m_chart);
}
m_chartTheme->decorate(item,areaSeries,m_chartItems.count());
m_chartItems.insert(series,item);
if(m_rect.isValid()) item->handleGeometryChanged(m_rect);
break;
}
case QSeries::SeriesTypeBar: {
QBarSeries* barSeries = static_cast<QBarSeries*>(series);
BarPresenter* item = new BarPresenter(barSeries,m_chart);
m_chartTheme->decorate(item,barSeries,m_chartItems.count());
QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),item,SLOT(handleGeometryChanged(const QRectF&)));
// QObject::connect(barSeries,SIGNAL(changed(int)),item,SLOT(handleModelChanged(int)));
m_chartItems.insert(series,item);
// m_axisXItem->setVisible(false);
if(m_rect.isValid()) item->handleGeometryChanged(m_rect);
break;
}
case QSeries::SeriesTypeStackedBar: {
QStackedBarSeries* stackedBarSeries = static_cast<QStackedBarSeries*>(series);
StackedBarPresenter* item = new StackedBarPresenter(stackedBarSeries,m_chart);
m_chartTheme->decorate(item,stackedBarSeries,m_chartItems.count());
QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),item,SLOT(handleGeometryChanged(const QRectF&)));
// QObject::connect(stackedBarSeries,SIGNAL(changed(int)),item,SLOT(handleModelChanged(int)));
m_chartItems.insert(series,item);
if(m_rect.isValid()) item->handleGeometryChanged(m_rect);
break;
}
case QSeries::SeriesTypePercentBar: {
QPercentBarSeries* percentBarSeries = static_cast<QPercentBarSeries*>(series);
PercentBarPresenter* item = new PercentBarPresenter(percentBarSeries,m_chart);
m_chartTheme->decorate(item,percentBarSeries ,m_chartItems.count());
QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),item,SLOT(handleGeometryChanged(const QRectF&)));
// QObject::connect(percentBarSeries,SIGNAL(changed(int)),item,SLOT(handleModelChanged(int)));
m_chartItems.insert(series,item);
if(m_rect.isValid()) item->handleGeometryChanged(m_rect);
break;
}
case QSeries::SeriesTypeScatter: {
QScatterSeries *scatterSeries = qobject_cast<QScatterSeries *>(series);
ScatterPresenter *scatterPresenter = new ScatterPresenter(scatterSeries, m_chart);
QObject::connect(scatterPresenter, SIGNAL(clicked(QPointF)),
scatterSeries, SIGNAL(clicked(QPointF)));
QObject::connect(this, SIGNAL(geometryChanged(const QRectF&)),
scatterPresenter, SLOT(handleGeometryChanged(const QRectF&)));
m_chartTheme->decorate(scatterPresenter, scatterSeries, m_chartItems.count());
m_chartItems.insert(scatterSeries, scatterPresenter);
if(m_rect.isValid()) scatterPresenter->handleGeometryChanged(m_rect);
break;
}
case QSeries::SeriesTypePie: {
QPieSeries *s = qobject_cast<QPieSeries *>(series);
PiePresenter* pie = new PiePresenter(m_chart, s);
m_chartTheme->decorate(pie, s, m_chartItems.count());
QObject::connect(this, SIGNAL(geometryChanged(const QRectF&)), pie, SLOT(handleGeometryChanged(const QRectF&)));
// Hide all from background when there is only piechart
// TODO: refactor this ugly code... should be one setting for this
if (m_chartItems.count() == 0) {
m_chart->axisX()->setAxisVisible(false);
m_chart->axisY()->setAxisVisible(false);
m_chart->axisX()->setGridVisible(false);
m_chart->axisY()->setGridVisible(false);
m_chart->axisX()->setLabelsVisible(false);
m_chart->axisY()->setLabelsVisible(false);
m_chart->axisX()->setShadesVisible(false);
m_chart->axisY()->setShadesVisible(false);
m_chart->setChartBackgroundBrush(Qt::transparent);
}
m_chartItems.insert(series, pie);
pie->handleGeometryChanged(m_rect);
break;
}
case QSeries::SeriesTypeSpline: {
QSplineSeries* splineSeries = qobject_cast<QSplineSeries*>(series);
SplinePresenter* splinePresenter = new SplinePresenter(splineSeries, m_chart);
QObject::connect(this, SIGNAL(geometryChanged(const QRectF&)), splinePresenter, SLOT(handleGeometryChanged(const QRectF&)));
m_chartTheme->decorate(splinePresenter, splineSeries, m_chartItems.count());
m_chartItems.insert(splineSeries, splinePresenter);
break;
}
default: {
qDebug()<< "Series type" << series->type() << "not implemented.";
break;
}
}
}
void ChartPresenter::handleSeriesRemoved(QSeries* series)
{
ChartItem* item = m_chartItems.take(series);
delete item;
}
void ChartPresenter::handleSeriesDomainChanged(QSeries* series, const Domain& domain)
{
m_chartItems.value(series)->handleDomainChanged(domain);
}
void ChartPresenter::handleAxisRangeChanged(QChartAxis* axis,const QStringList& labels)
{
m_axisItems.value(axis)->handleRangeChanged(axis,labels);
}
void ChartPresenter::setChartTheme(QChart::ChartTheme theme)
{
delete m_chartTheme;
m_chartTheme = ChartTheme::createTheme(theme);
m_chartTheme->decorate(m_chart);
QMapIterator<QSeries*,ChartItem*> i(m_chartItems);
int index=0;
while (i.hasNext()) {
i.next();
m_chartTheme->decorate(i.value(),i.key(),index);
index++;
}
QMapIterator<QChartAxis*,AxisItem*> j(m_axisItems);
while (j.hasNext()) {
j.next();
m_chartTheme->decorate(j.key(),j.value());
}
}
QChart::ChartTheme ChartPresenter::chartTheme()
{
return m_chartTheme->id();
}
void ChartPresenter::setAnimationOptions(QChart::AnimationOptions options)
{
if(m_options!=options) {
m_options=options;
//recreate elements
QList<QChartAxis*> axisList = m_axisItems.uniqueKeys();
QList<QSeries*> seriesList = m_chartItems.uniqueKeys();
foreach(QChartAxis* axis, axisList) {
handleAxisRemoved(axis);
handleAxisAdded(axis);
}
foreach(QSeries* series, seriesList) {
handleSeriesRemoved(series);
handleSeriesAdded(series);
}
//now reintialize view data
//TODO: make it more nice
m_dataset->setDomain(m_dataset->domainIndex());
}
}
QChart::AnimationOptions ChartPresenter::animationOptions() const
{
return m_options;
}
#include "moc_chartpresenter_p.cpp"
QTCOMMERCIALCHART_END_NAMESPACE