##// END OF EJS Templates
QXYSeries: model data orientation added. QBarSeries: some model data function placeholders
QXYSeries: model data orientation added. QBarSeries: some model data function placeholders

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chartpresenter.cpp
385 lines | 12.7 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 "piepresenter_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_dataset(dataset),
m_chartTheme(0),
m_zoomIndex(0),
m_marginSize(0),
m_rect(QRectF(QPoint(0,0),m_chart->size())),
m_options(QChart::NoAnimation)
{
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*,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_marginSize,m_marginSize, -m_marginSize, -m_marginSize);
//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);
}
int ChartPresenter::margin() const
{
return m_marginSize;
}
void ChartPresenter::setMargin(int margin)
{
m_marginSize = margin;
}
void ChartPresenter::handleAxisAdded(QChartAxis* axis,Domain* domain)
{
AxisItem* item ;
if(!m_options.testFlag(QChart::GridAxisAnimations))
{
item = new AxisItem(axis,axis==m_dataset->axisX()?AxisItem::X_AXIS : AxisItem::Y_AXIS,m_chart);
}else{
item = new AxisAnimationItem(axis,axis==m_dataset->axisX()?AxisItem::X_AXIS : AxisItem::Y_AXIS,m_chart);
}
if(axis==m_dataset->axisX()){
QObject::connect(domain,SIGNAL(rangeXChanged(qreal,qreal)),item,SLOT(handleRangeChanged(qreal,qreal)));
//initialize
item->handleRangeChanged(domain->minX(),domain->maxX());
}
else{
QObject::connect(domain,SIGNAL(rangeYChanged(qreal,qreal)),item,SLOT(handleRangeChanged(qreal,qreal)));
//initialize
item->handleRangeChanged(domain->minY(),domain->maxY());
}
QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),item,SLOT(handleGeometryChanged(const QRectF&)));
//initialize
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,Domain* domain)
{
switch(series->type())
{
case QSeries::SeriesTypeLine: {
QLineSeries* lineSeries = static_cast<QLineSeries*>(series);
LineChartItem* item;
if(m_options.testFlag(QChart::SeriesAnimations)){
item = new LineChartAnimationItem(lineSeries,m_chart);
}else{
item = new LineChartItem(lineSeries,m_chart);
}
QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),item,SLOT(handleGeometryChanged(const QRectF&)));
QObject::connect(domain,SIGNAL(domainChanged(qreal,qreal,qreal,qreal)),item,SLOT(handleDomainChanged(qreal,qreal,qreal,qreal)));
//initialize
item->handleDomainChanged(domain->minX(),domain->maxX(),domain->minY(),domain->maxY());
if(m_rect.isValid()) item->handleGeometryChanged(m_rect);
//decorate
m_chartTheme->decorate(item,lineSeries,m_chartItems.count());
m_chartItems.insert(series,item);
break;
}
case QSeries::SeriesTypeArea: {
QAreaSeries* areaSeries = static_cast<QAreaSeries*>(series);
AreaChartItem* item;
if(m_options.testFlag(QChart::SeriesAnimations)) {
item = new AreaChartItem(areaSeries,m_chart);
}
else {
item = new AreaChartItem(areaSeries,m_chart);
}
QObject::connect(this,SIGNAL(geometryChanged(const QRectF&)),item,SLOT(handleGeometryChanged(const QRectF&)));
QObject::connect(domain,SIGNAL(domainChanged(qreal,qreal,qreal,qreal)),item,SLOT(handleDomainChanged(qreal,qreal,qreal,qreal)));
//initialize
item->handleDomainChanged(domain->minX(),domain->maxX(),domain->minY(),domain->maxY());
if(m_rect.isValid()) item->handleGeometryChanged(m_rect);
//decorate
m_chartTheme->decorate(item,areaSeries,m_chartItems.count());
m_chartItems.insert(series,item);
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);
ScatterChartItem *item;
if(m_options.testFlag(QChart::SeriesAnimations)) {
item = new ScatterChartAnimationItem(scatterSeries,m_chart);
} else {
item = new ScatterChartItem(scatterSeries, m_chart);
}
QObject::connect(this, SIGNAL(geometryChanged(const QRectF&)),
item, SLOT(handleGeometryChanged(const QRectF&)));
QObject::connect(domain, SIGNAL(domainChanged(qreal,qreal,qreal,qreal)),
item, SLOT(handleDomainChanged(qreal,qreal,qreal,qreal)));
//initialize
if (m_rect.isValid())
item->handleGeometryChanged(m_rect);
item->handleDomainChanged(domain->minX(), domain->maxX(), domain->minY(), domain->maxY());
//decorate
m_chartTheme->decorate(item, scatterSeries, m_chartItems.count());
m_chartItems.insert(scatterSeries, item);
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);
SplineChartItem* item;
if(m_options.testFlag(QChart::SeriesAnimations)) {
item = new SplineChartAnimationItem(splineSeries, m_chart);
} else {
item = new SplineChartItem(splineSeries, m_chart);
}
QObject::connect(this, SIGNAL(geometryChanged(const QRectF&)), item, SLOT(handleGeometryChanged(const QRectF&)));
QObject::connect(domain,SIGNAL(domainChanged(qreal,qreal,qreal,qreal)),item,SLOT(handleDomainChanged(qreal,qreal,qreal,qreal)));
//initialize
item->handleDomainChanged(domain->minX(),domain->maxX(),domain->minY(),domain->maxY());
if(m_rect.isValid()) item->handleGeometryChanged(m_rect);
//decorate
m_chartTheme->decorate(item, splineSeries, m_chartItems.count());
m_chartItems.insert(splineSeries, item);
break;
}
default: {
qDebug()<< "Series type" << series->type() << "not implemented.";
break;
}
}
zoomReset();
}
void ChartPresenter::handleSeriesRemoved(QSeries* series)
{
ChartItem* item = m_chartItems.take(series);
delete item;
}
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,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_marginSize, -m_marginSize);
m_dataset->zoomInDomain(r,geometry().size());
m_zoomStack<<r;
m_zoomIndex++;
}
void ChartPresenter::zoomOut()
{
if(m_zoomIndex==0) return;
m_dataset->zoomOutDomain(m_zoomStack[m_zoomIndex-1],geometry().size());
m_zoomIndex--;
m_zoomStack.resize(m_zoomIndex);
}
void ChartPresenter::zoomReset()
{
m_zoomIndex=0;
m_zoomStack.resize(m_zoomIndex);
}
QChart::AnimationOptions ChartPresenter::animationOptions() const
{
return m_options;
}
#include "moc_chartpresenter_p.cpp"
QTCOMMERCIALCHART_END_NAMESPACE