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Minor updates to barModelMapper example and its docs
Minor updates to barModelMapper example and its docs

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chartdataset.cpp
285 lines | 7.6 KiB | text/x-c | CppLexer
/****************************************************************************
**
** 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
** $QT_END_LICENSE$
**
****************************************************************************/
#include "chartdataset_p.h"
#include "qchart.h"
#include "qaxis.h"
#include "qaxis_p.h"
#include "qabstractseries_p.h"
#include "qbarseries.h"
#include "qstackedbarseries.h"
#include "qpercentbarseries.h"
#include "qpieseries.h"
QTCOMMERCIALCHART_BEGIN_NAMESPACE
ChartDataSet::ChartDataSet(QChart *parent):QObject(parent),
m_axisX(new QAxis(this)),
m_axisY(new QAxis(this)),
m_domainIndex(0),
m_axisXInitialized(false),
m_axisYInitialized(false)
{
//create main domain
Domain* domain = new Domain(m_axisY);
m_axisDomainMap.insert(m_axisY,domain);
QObject::connect(m_axisY->d_ptr.data(),SIGNAL(changed(qreal,qreal,int,bool)),domain,SLOT(handleAxisYChanged(qreal,qreal,int,bool)));
QObject::connect(m_axisX->d_ptr.data(),SIGNAL(changed(qreal,qreal,int,bool)),domain,SLOT(handleAxisXChanged(qreal,qreal,int,bool)));
QObject::connect(domain,SIGNAL(rangeYChanged(qreal,qreal,int)),m_axisY->d_ptr.data(),SLOT(handleAxisRangeChanged(qreal,qreal,int)));
QObject::connect(domain,SIGNAL(rangeXChanged(qreal,qreal,int)),m_axisX->d_ptr.data(),SLOT(handleAxisRangeChanged(qreal,qreal,int)));
}
ChartDataSet::~ChartDataSet()
{
removeAllSeries();
}
void ChartDataSet::addSeries(QAbstractSeries* series, QAxis *axisY)
{
if(axisY==0) axisY = m_axisY;
QAxis* axis = m_seriesAxisMap.value(series);
if(axis) {
qWarning() << "Can not add series. Series already on the chart";
return;
}
series->setParent(this); // take ownership
axisY->setParent(this); // take ownership
Domain* domain = m_axisDomainMap.value(axisY);
if(!domain) {
domain = new Domain(axisY);
QObject::connect(axisY->d_ptr.data(),SIGNAL(changed(qreal,qreal,int,bool)),domain,SLOT(handleAxisYChanged(qreal,qreal,int,bool)));
QObject::connect(axisX()->d_ptr.data(),SIGNAL(changed(qreal,qreal,int,bool)),domain,SLOT(handleAxisXChanged(qreal,qreal,int)));
QObject::connect(domain,SIGNAL(rangeYChanged(qreal,qreal,int)),axisY->d_ptr.data(),SLOT(handleAxisRangeChanged(qreal,qreal,int)));
//initialize
m_axisDomainMap.insert(axisY,domain);
emit axisAdded(axisY,domain);
}
if(!m_axisXInitialized){
m_axisXInitialized=true;
emit axisAdded(m_axisX,domain);
}
if(!m_axisYInitialized && axisY==m_axisY){
m_axisYInitialized=true;
emit axisAdded(m_axisY,domain);
}
series->d_ptr->scaleDomain(*domain);
if (series->type()== QAbstractSeries::SeriesTypePie && m_seriesAxisMap.count() == 0) {
axisX()->hide();
this->axisY()->hide();
}
m_seriesAxisMap.insert(series,axisY);
QMapIterator<int, QAbstractSeries*> i(m_indexSeriesMap);
int key=0;
while (i.hasNext()) {
i.next();
if(i.key()!=key) {
break;
}
key++;
}
m_indexSeriesMap.insert(key,series);
series->d_ptr->m_chart = qobject_cast<QChart*>(parent());
series->d_ptr->m_dataset = this;
emit seriesAdded(series,domain);
}
QAxis* ChartDataSet::removeSeries(QAbstractSeries* series)
{
QAxis* axis = m_seriesAxisMap.value(series);
if(!axis){
qWarning()<<"Can not remove series. Series not found on the chart.";
return 0;
}
emit seriesRemoved(series);
m_seriesAxisMap.remove(series);
int key = seriesIndex(series);
Q_ASSERT(key!=-1);
m_indexSeriesMap.remove(key);
series->setParent(0);
series->d_ptr->m_chart = 0;
series->d_ptr->m_dataset = 0;
QList<QAxis*> axes = m_seriesAxisMap.values();
int i = axes.indexOf(axis);
if(i==-1){
Domain* domain = m_axisDomainMap.take(axis);
emit axisRemoved(axis);
if(axis!=m_axisY){
axis->setParent(0);
delete domain;
}else{
m_axisYInitialized=false;
m_axisDomainMap.insert(m_axisY,domain);
}
}
if(m_seriesAxisMap.values().size()==0)
{
m_axisXInitialized=false;
emit axisRemoved(axisX());
}
return axis;
}
void ChartDataSet::removeAllSeries()
{
QList<QAbstractSeries*> series = m_seriesAxisMap.keys();
QList<QAxis*> axes;
foreach(QAbstractSeries *s , series) {
QAxis* axis = removeSeries(s);
if(axis==axisY()) continue;
int i = axes.indexOf(axis);
if(i==-1){
axes<<axis;
}
}
Q_ASSERT(m_seriesAxisMap.count()==0);
Q_ASSERT(m_axisDomainMap.count()==1);
qDeleteAll(series);
qDeleteAll(axes);
}
void ChartDataSet::zoomInDomain(const QRectF& rect, const QSizeF& size)
{
QMapIterator<QAxis*, Domain*> i(m_axisDomainMap);
//main domain has to be the last one;
Domain *domain = m_axisDomainMap.value(axisY());
Q_ASSERT(domain);
while (i.hasNext()) {
i.next();
if(i.value()==domain) continue;
i.value()->zoomIn(rect,size);
}
domain->zoomIn(rect,size);
}
void ChartDataSet::zoomOutDomain(const QRectF& rect, const QSizeF& size)
{
QMapIterator<QAxis*, Domain*> i(m_axisDomainMap);
//main domain has to be the last one;
Domain *domain = m_axisDomainMap.value(axisY());
Q_ASSERT(domain);
while (i.hasNext()) {
i.next();
if(i.value()==domain) continue;
i.value()->zoomOut(rect,size);
}
domain->zoomOut(rect,size);
}
int ChartDataSet::seriesCount(QAbstractSeries::SeriesType type)
{
int count=0;
QMapIterator<QAbstractSeries*, QAxis*> i(m_seriesAxisMap);
while (i.hasNext()) {
i.next();
if(i.key()->type()==type) count++;
}
return count;
}
int ChartDataSet::seriesIndex(QAbstractSeries *series)
{
QMapIterator<int, QAbstractSeries*> i(m_indexSeriesMap);
while (i.hasNext()) {
i.next();
if (i.value() == series)
return i.key();
}
return -1;
}
QAxis* ChartDataSet::axisY(QAbstractSeries *series) const
{
if(series == 0) return m_axisY;
return m_seriesAxisMap.value(series);
}
Domain* ChartDataSet::domain(QAbstractSeries *series) const
{
QAxis* axis = m_seriesAxisMap.value(series);
if(axis){
return m_axisDomainMap.value(axis);
}else
return 0;
}
Domain* ChartDataSet::domain(QAxis* axis) const
{
if(!axis || axis==axisX()) {
return m_axisDomainMap.value(axisY());
}
else {
return m_axisDomainMap.value(axis);
}
}
void ChartDataSet::scrollDomain(qreal dx,qreal dy,const QSizeF& size)
{
QMapIterator<QAxis*, Domain*> i( m_axisDomainMap);
//main domain has to be the last one;
Domain *domain = m_axisDomainMap.value(axisY());
while (i.hasNext()) {
i.next();
if(i.value()==domain) continue;
i.value()->move(dx,dy,size);
}
domain->move(dx,dy,size);
}
QList<QAbstractSeries*> ChartDataSet::series() const
{
return m_seriesAxisMap.keys();
}
void ChartDataSet::updateSeries(QAbstractSeries *series)
{
emit seriesUpdated(series);
}
#include "moc_chartdataset_p.cpp"
QTCOMMERCIALCHART_END_NAMESPACE