##// END OF EJS Templates
Set the first pie slice exploded and label visible in chartthemes demo
Set the first pie slice exploded and label visible in chartthemes demo

File last commit:

r678:e39e59ad9161
r699:367aeb7897cf
Show More
chartpresenter.cpp
385 lines | 13.5 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"
#include "chartanimator_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 "areachartitem_p.h"
#include "barchartitem_p.h"
#include "stackedbarchartitem_p.h"
#include "percentbarchartitem_p.h"
#include "linechartitem_p.h"
#include "piechartitem_p.h"
#include "scatterchartitem_p.h"
#include "splinechartitem_p.h"
QTCOMMERCIALCHART_BEGIN_NAMESPACE
ChartPresenter::ChartPresenter(QChart* chart,ChartDataSet* dataset):QObject(chart),
m_chart(chart),
m_animator(0),
m_dataset(dataset),
m_chartTheme(0),
m_rect(QRectF(QPoint(0,0),m_chart->size())),
m_options(QChart::NoAnimation),
m_themeForce(false)
{
createConnections();
setChartTheme(QChart::ChartThemeDefault,false);
}
ChartPresenter::~ChartPresenter()
{
delete m_chartTheme;
}
void ChartPresenter::createConnections()
{
QObject::connect(m_chart,SIGNAL(geometryChanged()),this,SLOT(handleGeometryChanged()));
QObject::connect(m_dataset,SIGNAL(seriesAdded(QSeries*,Domain*)),this,SLOT(handleSeriesAdded(QSeries*,Domain*)));
QObject::connect(m_dataset,SIGNAL(seriesRemoved(QSeries*)),this,SLOT(handleSeriesRemoved(QSeries*)));
QObject::connect(m_dataset,SIGNAL(axisAdded(QChartAxis*,Domain*)),this,SLOT(handleAxisAdded(QChartAxis*,Domain*)));
QObject::connect(m_dataset,SIGNAL(axisRemoved(QChartAxis*)),this,SLOT(handleAxisRemoved(QChartAxis*)));
}
QRectF ChartPresenter::geometry() const
{
return m_rect;
}
void ChartPresenter::handleGeometryChanged()
{
QRectF rect(QPoint(0,0),m_chart->size());
rect.adjust(m_chart->padding(),m_chart->padding(), -m_chart->padding(), -m_chart->padding());
//rewrite zoom stack
/*
for(int i=0;i<m_zoomStack.count();i++){
QRectF r = m_zoomStack[i];
qreal w = rect.width()/m_rect.width();
qreal h = rect.height()/m_rect.height();
QPointF tl = r.topLeft();
tl.setX(tl.x()*w);
tl.setY(tl.y()*h);
QPointF br = r.bottomRight();
br.setX(br.x()*w);
br.setY(br.y()*h);
r.setTopLeft(tl);
r.setBottomRight(br);
m_zoomStack[i]=r;
}
*/
m_rect = rect;
Q_ASSERT(m_rect.isValid());
emit geometryChanged(m_rect);
}
void ChartPresenter::handleAxisAdded(QChartAxis* axis,Domain* domain)
{
Axis* item = new Axis(axis,this,axis==m_dataset->axisX()?Axis::X_AXIS : Axis::Y_AXIS);
if(m_options.testFlag(QChart::GridAxisAnimations)){
m_animator->addAnimation(item);
}
if(axis==m_dataset->axisX()){
m_chartTheme->decorate(axis,true,m_themeForce);
QObject::connect(domain,SIGNAL(rangeXChanged(qreal,qreal,int)),item,SLOT(handleRangeChanged(qreal,qreal,int)));
//initialize
item->handleRangeChanged(domain->minX(),domain->maxX(),domain->tickXCount());
}
else{
m_chartTheme->decorate(axis,false,m_themeForce);
QObject::connect(domain,SIGNAL(rangeYChanged(qreal,qreal,int)),item,SLOT(handleRangeChanged(qreal,qreal,int)));
//initialize
item->handleRangeChanged(domain->minY(),domain->maxY(),domain->tickYCount());
}
QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),item,SLOT(handleGeometryChanged(const QRectF&)));
//initialize
item->handleGeometryChanged(m_rect);
m_axisItems.insert(axis, item);
}
void ChartPresenter::handleAxisRemoved(QChartAxis* axis)
{
Axis* item = m_axisItems.take(axis);
Q_ASSERT(item);
if(m_animator) m_animator->removeAnimation(item);
delete item;
}
void ChartPresenter::handleSeriesAdded(QSeries* series,Domain* domain)
{
Chart *item = 0 ;
switch(series->type())
{
case QSeries::SeriesTypeLine: {
QLineSeries* lineSeries = static_cast<QLineSeries*>(series);
LineChartItem* line = new LineChartItem(lineSeries,this);
if(m_options.testFlag(QChart::SeriesAnimations)) {
m_animator->addAnimation(line);
}
m_chartTheme->decorate(lineSeries, m_dataset->seriesIndex(series),m_themeForce);
QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),line,SLOT(handleGeometryChanged(const QRectF&)));
QObject::connect(domain,SIGNAL(domainChanged(qreal,qreal,qreal,qreal)),line,SLOT(handleDomainChanged(qreal,qreal,qreal,qreal)));
item = line;
break;
}
case QSeries::SeriesTypeArea: {
QAreaSeries* areaSeries = static_cast<QAreaSeries*>(series);
AreaChartItem* area = new AreaChartItem(areaSeries,this);
if(m_options.testFlag(QChart::SeriesAnimations)) {
m_animator->addAnimation(area->upperLineItem());
if(areaSeries->lowerSeries()) m_animator->addAnimation(area->lowerLineItem());
}
m_chartTheme->decorate(areaSeries, m_dataset->seriesIndex(series),m_themeForce);
QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),area,SLOT(handleGeometryChanged(const QRectF&)));
QObject::connect(domain,SIGNAL(domainChanged(qreal,qreal,qreal,qreal)),area,SLOT(handleDomainChanged(qreal,qreal,qreal,qreal)));
item=area;
break;
}
case QSeries::SeriesTypeBar: {
QBarSeries* barSeries = static_cast<QBarSeries*>(series);
BarChartItem* bar = new BarChartItem(barSeries,this);
if(m_options.testFlag(QChart::SeriesAnimations)) {
m_animator->addAnimation(bar);
}
m_chartTheme->decorate(barSeries, m_dataset->seriesIndex(barSeries),m_themeForce);
QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),bar,SLOT(handleGeometryChanged(const QRectF&)));
QObject::connect(domain,SIGNAL(domainChanged(qreal,qreal,qreal,qreal)),bar,SLOT(handleDomainChanged(qreal,qreal,qreal,qreal)));
item=bar;
break;
}
case QSeries::SeriesTypeStackedBar: {
QStackedBarSeries* stackedBarSeries = static_cast<QStackedBarSeries*>(series);
StackedBarChartItem* bar = new StackedBarChartItem(stackedBarSeries,this);
if(m_options.testFlag(QChart::SeriesAnimations)) {
m_animator->addAnimation(bar);
}
m_chartTheme->decorate(stackedBarSeries, m_dataset->seriesIndex(stackedBarSeries),m_themeForce);
QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),bar,SLOT(handleGeometryChanged(const QRectF&)));
QObject::connect(domain,SIGNAL(domainChanged(qreal,qreal,qreal,qreal)),bar,SLOT(handleDomainChanged(qreal,qreal,qreal,qreal)));
item=bar;
break;
}
case QSeries::SeriesTypePercentBar: {
QPercentBarSeries* percentBarSeries = static_cast<QPercentBarSeries*>(series);
PercentBarChartItem* bar = new PercentBarChartItem(percentBarSeries,this);
if(m_options.testFlag(QChart::SeriesAnimations)) {
m_animator->addAnimation(bar);
}
m_chartTheme->decorate(percentBarSeries, m_dataset->seriesIndex(percentBarSeries),m_themeForce);
QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),bar,SLOT(handleGeometryChanged(const QRectF&)));
QObject::connect(domain,SIGNAL(domainChanged(qreal,qreal,qreal,qreal)),bar,SLOT(handleDomainChanged(qreal,qreal,qreal,qreal)));
item=bar;
break;
}
case QSeries::SeriesTypeScatter: {
QScatterSeries *scatterSeries = static_cast<QScatterSeries *>(series);
ScatterChartItem *scatter = new ScatterChartItem(scatterSeries,this);
if(m_options.testFlag(QChart::SeriesAnimations)) {
m_animator->addAnimation(scatter);
}
m_chartTheme->decorate(scatterSeries, m_dataset->seriesIndex(series),m_themeForce);
QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),scatter,SLOT(handleGeometryChanged(const QRectF&)));
QObject::connect(domain,SIGNAL(domainChanged(qreal,qreal,qreal,qreal)),scatter,SLOT(handleDomainChanged(qreal,qreal,qreal,qreal)));
item = scatter;
break;
}
case QSeries::SeriesTypePie: {
QPieSeries *pieSeries = static_cast<QPieSeries *>(series);
PieChartItem* pie = new PieChartItem(pieSeries, this);
if(m_options.testFlag(QChart::SeriesAnimations)) {
m_animator->addAnimation(pie);
}
m_chartTheme->decorate(pieSeries, m_dataset->seriesIndex(series),m_themeForce);
QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),pie,SLOT(handleGeometryChanged(const QRectF&)));
QObject::connect(domain,SIGNAL(domainChanged(qreal,qreal,qreal,qreal)),pie,SLOT(handleDomainChanged(qreal,qreal,qreal,qreal)));
// 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()->hide();
m_chart->axisY()->hide();
}
item=pie;
break;
}
case QSeries::SeriesTypeSpline: {
QSplineSeries* splineSeries = static_cast<QSplineSeries*>(series);
SplineChartItem* spline = new SplineChartItem(splineSeries, this);
if(m_options.testFlag(QChart::SeriesAnimations)) {
m_animator->addAnimation(spline);
}
m_chartTheme->decorate(splineSeries, m_dataset->seriesIndex(series),m_themeForce);
QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),spline,SLOT(handleGeometryChanged(const QRectF&)));
QObject::connect(domain,SIGNAL(domainChanged(qreal,qreal,qreal,qreal)),spline,SLOT(handleDomainChanged(qreal,qreal,qreal,qreal)));
item=spline;
break;
}
default: {
qDebug()<< "Series type" << series->type() << "not implemented.";
break;
}
}
//initialize
item->handleDomainChanged(domain->minX(),domain->maxX(),domain->minY(),domain->maxY());
if(m_rect.isValid()) item->handleGeometryChanged(m_rect);
m_chartItems.insert(series,item);
}
void ChartPresenter::handleSeriesRemoved(QSeries* series)
{
Chart* item = m_chartItems.take(series);
Q_ASSERT(item);
if(m_animator) {
//small hack to handle area animations
if(series->type()==QSeries::SeriesTypeArea){
QAreaSeries* areaSeries = static_cast<QAreaSeries*>(series);
AreaChartItem* area = static_cast<AreaChartItem*>(item);
m_animator->removeAnimation(area->upperLineItem());
if(areaSeries->lowerSeries()) m_animator->removeAnimation(area->lowerLineItem());
}else
m_animator->removeAnimation(item);
}
delete item;
}
void ChartPresenter::setChartTheme(QChart::ChartTheme theme,bool force)
{
if(m_chartTheme && m_chartTheme->id() == theme) return;
delete m_chartTheme;
m_themeForce = force;
m_chartTheme = ChartTheme::createTheme(theme);
m_chartTheme->decorate(m_chart,m_themeForce);
m_chartTheme->decorate(m_chart->legend(),m_themeForce);
resetAllElements();
}
QChart::ChartTheme ChartPresenter::chartTheme()
{
return m_chartTheme->id();
}
void ChartPresenter::setAnimationOptions(QChart::AnimationOptions options)
{
if(m_options!=options) {
m_options=options;
if(m_options!=QChart::NoAnimation && !m_animator) {
m_animator= new ChartAnimator(this);
}
resetAllElements();
}
}
void ChartPresenter::resetAllElements()
{
QList<QChartAxis*> axisList = m_axisItems.uniqueKeys();
QList<QSeries*> seriesList = m_chartItems.uniqueKeys();
foreach(QChartAxis* axis, axisList) {
handleAxisRemoved(axis);
handleAxisAdded(axis,m_dataset->domain(axis));
}
foreach(QSeries* series, seriesList) {
handleSeriesRemoved(series);
handleSeriesAdded(series,m_dataset->domain(series));
}
}
void ChartPresenter::zoomIn()
{
QRectF rect = geometry();
rect.setWidth(rect.width()/2);
rect.setHeight(rect.height()/2);
rect.moveCenter(geometry().center());
zoomIn(rect);
}
void ChartPresenter::zoomIn(const QRectF& rect)
{
QRectF r = rect.normalized();
r.translate(-m_chart->padding(), -m_chart->padding());
if(m_animator) {
QPointF point(r.center().x()/geometry().width(),r.center().y()/geometry().height());
m_animator->setState(ChartAnimator::ZoomInState,point);
}
m_dataset->zoomInDomain(r,geometry().size());
if(m_animator) {
m_animator->setState(ChartAnimator::ShowState);
}
}
void ChartPresenter::zoomOut()
{
if(m_animator)
{
m_animator->setState(ChartAnimator::ZoomOutState);
}
QSizeF size = geometry().size();
QRectF rect = geometry();
rect.translate(-m_chart->padding(), -m_chart->padding());
m_dataset->zoomOutDomain(rect.adjusted(size.width()/4,size.height()/4,-size.width()/4,-size.height()/4),size);
//m_dataset->zoomOutDomain(m_zoomStack[m_zoomIndex-1],geometry().size());
if(m_animator){
m_animator->setState(ChartAnimator::ShowState);
}
}
void ChartPresenter::scroll(int dx,int dy)
{
if(m_animator){
if(dx<0) m_animator->setState(ChartAnimator::ScrollLeftState,QPointF());
if(dx>0) m_animator->setState(ChartAnimator::ScrollRightState,QPointF());
if(dy<0) m_animator->setState(ChartAnimator::ScrollUpState,QPointF());
if(dy>0) m_animator->setState(ChartAnimator::ScrollDownState,QPointF());
}
m_dataset->scrollDomain(dx,dy,geometry().size());
if(m_animator){
m_animator->setState(ChartAnimator::ShowState);
}
}
QChart::AnimationOptions ChartPresenter::animationOptions() const
{
return m_options;
}
#include "moc_chartpresenter_p.cpp"
QTCOMMERCIALCHART_END_NAMESPACE