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customchart with categories on Y axis
customchart with categories on Y axis

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chartdataset.cpp
464 lines | 12.4 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 "qvaluesaxis.h"
#include "qbarcategoriesaxis.h"
#include "qvaluesaxis_p.h"
#include "qabstractseries_p.h"
#include "qabstractbarseries.h"
#include "qstackedbarseries.h"
#include "qpercentbarseries.h"
#include "qpieseries.h"
QTCOMMERCIALCHART_BEGIN_NAMESPACE
ChartDataSet::ChartDataSet(QChart *parent):QObject(parent),
m_domainIndex(0)
{
}
ChartDataSet::~ChartDataSet()
{
removeAllSeries();
}
void ChartDataSet::addSeries(QAbstractSeries* series)
{
Domain* domain = m_seriesDomainMap.value(series);
if(domain) {
qWarning() << "Can not add series. Series already on the chart";
return;
}
series->setParent(this); // take ownership
domain = new Domain(series);
m_seriesDomainMap.insert(series,domain);
series->d_ptr->scaleDomain(*domain);
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);
}
void ChartDataSet::createDefaultAxes()
{
if(m_seriesDomainMap.isEmpty()) return;
QAbstractAxis::AxisTypes typeX(0);
QAbstractAxis::AxisTypes typeY(0);
QMapIterator<QAbstractSeries*, Domain*> i(m_seriesDomainMap);
while (i.hasNext()) {
i.next();
removeAxes(i.key());
}
i.toFront();
while (i.hasNext()) {
i.next();
QAbstractAxis* axisX = m_seriesAxisXMap.value(i.key());
QAbstractAxis* axisY = m_seriesAxisYMap.value(i.key());
if(axisX) typeX&=axisX->type();
else typeX|=i.key()->d_ptr->defaultAxisXType();
if(axisY) typeY&=axisY->type();
else typeY|=i.key()->d_ptr->defaultAxisYType();
}
if(typeX.testFlag(QAbstractAxis::AxisTypeValues) && typeX.testFlag(QAbstractAxis::AxisTypeCategories))
{
i.toFront();
while (i.hasNext()) {
i.next();
QAbstractAxis* axis = createAxis(i.key()->d_ptr->defaultAxisXType());
if(!axis) continue;
i.key()->d_ptr->initializeAxisX(axis);
addAxisX(axis,i.key());
emit axisAdded(axis,i.value());
}
}else if(!typeY.testFlag(QAbstractAxis::AxisTypeNoAxis)){
QAbstractAxis* axis = createAxis(QAbstractAxis::AxisType(int(typeX)));
i.toFront();
while (i.hasNext()) {
i.next();
i.key()->d_ptr->initializeAxisX(axis);
addAxisX(axis,i.key());
}
emit axisAdded(axis,i.value());
}
if(typeY.testFlag(QAbstractAxis::AxisTypeValues) && typeY.testFlag(QAbstractAxis::AxisTypeCategories))
{
i.toFront();
while (i.hasNext()) {
i.next();
QAbstractAxis* axis = createAxis(i.key()->d_ptr->defaultAxisYType());
i.key()->d_ptr->initializeAxisY(axis);
addAxisY(axis,i.key());
emit axisAdded(axis,i.value());
}
}else if(!typeY.testFlag(QAbstractAxis::AxisTypeNoAxis)){
QAbstractAxis* axis = createAxis(QAbstractAxis::AxisType(int(typeY)));
i.toFront();
while (i.hasNext()) {
i.next();
i.key()->d_ptr->initializeAxisY(axis);
addAxisY(axis,i.key());
}
emit axisAdded(axis,i.value());
}
}
QAbstractAxis* ChartDataSet::createAxis(QAbstractAxis::AxisType type)
{
QAbstractAxis* axis =0;
switch(type) {
case QAbstractAxis::AxisTypeValues:
axis = new QValuesAxis(this);
break;
case QAbstractAxis::AxisTypeCategories:
axis = new QBarCategoriesAxis(this);
break;
default:
axis = 0;
break;
}
return axis;
}
void ChartDataSet::addAxisX(QAbstractAxis* axis,QAbstractSeries* series) {
Domain* domain = m_seriesDomainMap.value(series);
QObject::connect(axis->d_ptr.data(),SIGNAL(changed(qreal,qreal,int,bool)),domain,SLOT(handleAxisXChanged(qreal,qreal,int,bool)));
QObject::connect(domain,SIGNAL(rangeXChanged(qreal,qreal,int)),axis->d_ptr.data(),SLOT(handleAxisRangeChanged(qreal,qreal,int)));
axis->d_ptr->m_orientation=Qt::Horizontal;
m_seriesAxisXMap.insert(series,axis);
}
void ChartDataSet::addAxisY(QAbstractAxis* axis,QAbstractSeries* series) {
Domain* domain = m_seriesDomainMap.value(series);
QObject::connect(axis->d_ptr.data(),SIGNAL(changed(qreal,qreal,int,bool)),domain,SLOT(handleAxisYChanged(qreal,qreal,int,bool)));
QObject::connect(domain,SIGNAL(rangeYChanged(qreal,qreal,int)),axis->d_ptr.data(),SLOT(handleAxisRangeChanged(qreal,qreal,int)));
axis->d_ptr->m_orientation=Qt::Vertical;
m_seriesAxisYMap.insert(series,axis);
}
void ChartDataSet::removeSeries(QAbstractSeries* series)
{
Domain* domain = m_seriesDomainMap.take(series);
if(!domain) {
qWarning()<<"Can not remove series. Series not found on the chart.";
}
emit seriesRemoved(series);
delete domain;
domain = 0;
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;
removeAxes(series);
}
void ChartDataSet::removeAxes(QAbstractSeries* series)
{
QAbstractAxis* axisX = m_seriesAxisXMap.take(series);
if(axisX) {
QList<QAbstractAxis*> axesX = m_seriesAxisXMap.values();
int x = axesX.indexOf(axisX);
if(x==-1) {
emit axisRemoved(axisX);
axisX->deleteLater();
}
}
QAbstractAxis* axisY = m_seriesAxisYMap.take(series);
if(axisY) {
QList<QAbstractAxis*> axesY = m_seriesAxisYMap.values();
int y = axesY.indexOf(axisY);
if(y==-1) {
emit axisRemoved(axisY);
axisY->deleteLater();
}
}
}
void ChartDataSet::removeAllSeries()
{
QList<QAbstractSeries*> series = m_seriesDomainMap.keys();
foreach(QAbstractSeries *s , series) {
removeSeries(s);
}
Q_ASSERT(m_seriesAxisXMap.count()==0);
Q_ASSERT(m_seriesAxisXMap.count()==0);
Q_ASSERT(m_seriesDomainMap.count()==0);
qDeleteAll(series);
}
void ChartDataSet::zoomInDomain(const QRectF& rect, const QSizeF& size)
{
//for performance reasons block, signals and scale "full" domain one by one. Gives twice less screen updates
blockAxisSignals(true);
QMapIterator<QAbstractSeries*, Domain*> i(m_seriesDomainMap);
while (i.hasNext()) {
i.next();
i.value()->zoomIn(rect,size);
}
blockAxisSignals(false);
}
void ChartDataSet::zoomOutDomain(const QRectF& rect, const QSizeF& size)
{
//for performance reasons block, signals and scale "full" domain one by one. Gives twice less screen updates
blockAxisSignals(true);
QMapIterator<QAbstractSeries*, Domain*> i(m_seriesDomainMap);
while (i.hasNext()) {
i.next();
i.value()->zoomOut(rect,size);
}
blockAxisSignals(false);
}
void ChartDataSet::blockAxisSignals(bool enabled)
{
QMapIterator<QAbstractSeries*, Domain*> i(m_seriesDomainMap);
while (i.hasNext()) {
i.next();
QAbstractAxis* axisX = m_seriesAxisXMap.value(i.key());
QAbstractAxis* axisY = m_seriesAxisYMap.value(i.key());
if(axisX) axisX->blockSignals(enabled);
if(axisY) axisY->blockSignals(enabled);
}
}
int ChartDataSet::seriesCount(QAbstractSeries::SeriesType type)
{
int count=0;
QMapIterator<QAbstractSeries*, Domain*> i(m_seriesDomainMap);
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;
}
QAbstractAxis* ChartDataSet::axisX(QAbstractSeries *series) const
{
if(series == 0) {
QMapIterator<QAbstractSeries*, QAbstractAxis *> i(m_seriesAxisXMap);
while (i.hasNext()) {
i.next();
if(i.value()->isVisible()) return i.value();
}
return 0;
}
return m_seriesAxisXMap.value(series);
}
QAbstractAxis* ChartDataSet::axisY(QAbstractSeries *series) const
{
if(series == 0) {
QMapIterator<QAbstractSeries*, QAbstractAxis *> i(m_seriesAxisYMap);
while (i.hasNext()) {
i.next();
if(i.value()->isVisible()) return i.value();
}
return 0;
}
return m_seriesAxisYMap.value(series);
}
void ChartDataSet::setAxisX(QAbstractSeries *series, QAbstractAxis *axis)
{
Q_ASSERT(axis);
Domain* domain = m_seriesDomainMap.value(series);
if(!domain) {
qWarning() << "Series not found on the chart.";
return;
}
if(axis->d_ptr->m_orientation==Qt::Vertical) {
qWarning()<<"Axis already defined as axis Y";
return;
}
QAbstractAxis *oldAxis = m_seriesAxisXMap.take(series);
QList<QAbstractAxis*> axesX = m_seriesAxisXMap.values();
if(oldAxis) {
int x = axesX.indexOf(oldAxis);
if(x==-1) {
emit axisRemoved(oldAxis);
oldAxis->deleteLater();
}
}
QObject::connect(axis->d_ptr.data(),SIGNAL(changed(qreal,qreal,int,bool)),domain,SLOT(handleAxisXChanged(qreal,qreal,int,bool)));
QObject::connect(domain,SIGNAL(rangeXChanged(qreal,qreal,int)),axis->d_ptr.data(),SLOT(handleAxisRangeChanged(qreal,qreal,int)));
int x = axesX.indexOf(axis);
if(x==-1) {
axis->d_ptr->m_orientation=Qt::Horizontal;
emit axisAdded(axis,domain);
}
m_seriesAxisXMap.insert(series,axis);
axis->d_ptr->emitRange();
}
void ChartDataSet::setAxisY(QAbstractSeries *series, QAbstractAxis *axis)
{
Q_ASSERT(axis);
Domain* domain = m_seriesDomainMap.value(series);
if(!domain) {
qWarning() << "Series not found on the chart.";
return;
}
if(axis->d_ptr->m_orientation==Qt::Horizontal) {
qWarning()<<"Axis already defined as axis X";
return;
}
QAbstractAxis *oldAxis = m_seriesAxisYMap.take(series);
QList<QAbstractAxis*> axesY = m_seriesAxisYMap.values();
if(oldAxis) {
int y = axesY.indexOf(oldAxis);
if(y==-1) {
emit axisRemoved(oldAxis);
oldAxis->deleteLater();
}
}
QObject::connect(axis->d_ptr.data(),SIGNAL(changed(qreal,qreal,int,bool)),domain,SLOT(handleAxisYChanged(qreal,qreal,int,bool)));
QObject::connect(domain,SIGNAL(rangeYChanged(qreal,qreal,int)),axis->d_ptr.data(),SLOT(handleAxisRangeChanged(qreal,qreal,int)));
int y = axesY.indexOf(axis);
if(y==-1) {
axis->d_ptr->m_orientation=Qt::Vertical;
emit axisAdded(axis,domain);
}
m_seriesAxisYMap.insert(series,axis);
axis->d_ptr->emitRange();
}
Domain* ChartDataSet::domain(QAbstractSeries *series) const
{
return m_seriesDomainMap.value(series);
}
void ChartDataSet::scrollDomain(qreal dx,qreal dy,const QSizeF& size)
{
blockAxisSignals(true);
QMapIterator<QAbstractSeries*, Domain*> i(m_seriesDomainMap);
while (i.hasNext()) {
i.next();
i.value()->move(dx,dy,size);
}
blockAxisSignals(false);
}
QList<QAbstractSeries*> ChartDataSet::series() const
{
return m_seriesAxisXMap.keys();
}
void ChartDataSet::updateSeries(QAbstractSeries *series)
{
emit seriesUpdated(series);
}
#include "moc_chartdataset_p.cpp"
QTCOMMERCIALCHART_END_NAMESPACE