|
|
/****************************************************************************
|
|
|
**
|
|
|
** 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 "qchart.h"
|
|
|
#include "qchart_p.h"
|
|
|
#include "qchartaxis.h"
|
|
|
#include "chartpresenter_p.h"
|
|
|
#include "chartdataset_p.h"
|
|
|
#include "charttheme_p.h"
|
|
|
#include "chartanimator_p.h"
|
|
|
#include "qseries_p.h"
|
|
|
#include "qareaseries.h"
|
|
|
#include "axisitem_p.h"
|
|
|
#include "areachartitem_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_chartRect(QRectF(QPoint(0,0),m_chart->size())),
|
|
|
m_options(QChart::NoAnimation),
|
|
|
m_minLeftMargin(0),
|
|
|
m_minBottomMargin(0),
|
|
|
m_backgroundItem(0),
|
|
|
m_titleItem(0),
|
|
|
m_marginBig(60),
|
|
|
m_marginSmall(20),
|
|
|
m_marginTiny(10),
|
|
|
m_chartMargins(QRect(m_marginBig,m_marginBig,0,0))
|
|
|
{
|
|
|
}
|
|
|
|
|
|
ChartPresenter::~ChartPresenter()
|
|
|
{
|
|
|
delete m_chartTheme;
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::setGeometry(const QRectF& rect)
|
|
|
{
|
|
|
m_rect = rect;
|
|
|
Q_ASSERT(m_rect.isValid());
|
|
|
updateLayout();
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::setMinimumMarginWidth(Axis* axis, qreal width)
|
|
|
{
|
|
|
switch(axis->axisType()){
|
|
|
case Axis::X_AXIS:
|
|
|
{
|
|
|
if(width>m_chartRect.width()+ m_chartMargins.left()) {
|
|
|
m_minLeftMargin= width - m_chartRect.width();
|
|
|
updateLayout();
|
|
|
}
|
|
|
break;
|
|
|
}
|
|
|
case Axis::Y_AXIS:
|
|
|
{
|
|
|
|
|
|
if(m_minLeftMargin!=width){
|
|
|
m_minLeftMargin= width;
|
|
|
updateLayout();
|
|
|
}
|
|
|
break;
|
|
|
}
|
|
|
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::setMinimumMarginHeight(Axis* axis, qreal height)
|
|
|
{
|
|
|
switch(axis->axisType()){
|
|
|
case Axis::X_AXIS:
|
|
|
{
|
|
|
if(m_minBottomMargin!=height) {
|
|
|
m_minBottomMargin= height;
|
|
|
updateLayout();
|
|
|
}
|
|
|
break;
|
|
|
}
|
|
|
case Axis::Y_AXIS:
|
|
|
{
|
|
|
|
|
|
if(height>m_chartMargins.bottom()+m_chartRect.height()){
|
|
|
m_minBottomMargin= height - m_chartRect.height();
|
|
|
updateLayout();
|
|
|
}
|
|
|
break;
|
|
|
}
|
|
|
|
|
|
}
|
|
|
}
|
|
|
|
|
|
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);
|
|
|
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);
|
|
|
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_chartRect);
|
|
|
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 = series->d_ptr->createGraphics(this);
|
|
|
Q_ASSERT(item);
|
|
|
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_chartRect.isValid()) item->handleGeometryChanged(m_chartRect);
|
|
|
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::setTheme(QChart::ChartTheme theme,bool force)
|
|
|
{
|
|
|
if(m_chartTheme && m_chartTheme->id() == theme) return;
|
|
|
delete m_chartTheme;
|
|
|
m_chartTheme = ChartTheme::createTheme(theme);
|
|
|
m_chartTheme->setForced(force);
|
|
|
m_chartTheme->decorate(m_chart);
|
|
|
m_chartTheme->decorate(m_chart->legend());
|
|
|
resetAllElements();
|
|
|
}
|
|
|
|
|
|
QChart::ChartTheme ChartPresenter::theme()
|
|
|
{
|
|
|
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 = chartGeometry();
|
|
|
rect.setWidth(rect.width()/2);
|
|
|
rect.setHeight(rect.height()/2);
|
|
|
rect.moveCenter(chartGeometry().center());
|
|
|
zoomIn(rect);
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::zoomIn(const QRectF& rect)
|
|
|
{
|
|
|
QRectF r = rect.normalized();
|
|
|
r.translate(-m_chartMargins.topLeft());
|
|
|
if(m_animator) {
|
|
|
|
|
|
QPointF point(r.center().x()/chartGeometry().width(),r.center().y()/chartGeometry().height());
|
|
|
m_animator->setState(ChartAnimator::ZoomInState,point);
|
|
|
}
|
|
|
m_dataset->zoomInDomain(r,chartGeometry().size());
|
|
|
if(m_animator) {
|
|
|
m_animator->setState(ChartAnimator::ShowState);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::zoomOut()
|
|
|
{
|
|
|
if(m_animator)
|
|
|
{
|
|
|
m_animator->setState(ChartAnimator::ZoomOutState);
|
|
|
}
|
|
|
|
|
|
QSizeF size = chartGeometry().size();
|
|
|
QRectF rect = chartGeometry();
|
|
|
rect.translate(-m_chartMargins.topLeft());
|
|
|
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,chartGeometry().size());
|
|
|
|
|
|
if(m_animator){
|
|
|
m_animator->setState(ChartAnimator::ShowState);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
QChart::AnimationOptions ChartPresenter::animationOptions() const
|
|
|
{
|
|
|
return m_options;
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::updateLayout()
|
|
|
{
|
|
|
if (!m_rect.isValid()) return;
|
|
|
|
|
|
// recalculate title size
|
|
|
|
|
|
QSize titleSize;
|
|
|
int titlePadding=0;
|
|
|
|
|
|
if (m_titleItem) {
|
|
|
titleSize= m_titleItem->boundingRect().size().toSize();
|
|
|
}
|
|
|
|
|
|
//defaults
|
|
|
m_chartMargins = QRect(QPoint(m_minLeftMargin>m_marginBig?m_minLeftMargin:m_marginBig,m_marginBig),QPoint(m_marginBig,m_minBottomMargin>m_marginBig?m_minBottomMargin:m_marginBig));
|
|
|
titlePadding = m_chartMargins.top()/2;
|
|
|
|
|
|
QLegend* legend = m_chart->d_ptr->m_legend;
|
|
|
|
|
|
// recalculate legend position
|
|
|
if (legend->isAttachedToChart() && legend->isEnabled()) {
|
|
|
|
|
|
QRect legendRect;
|
|
|
|
|
|
// Reserve some space for legend
|
|
|
switch (legend->alignment()) {
|
|
|
|
|
|
case QLegend::AlignmentTop: {
|
|
|
int ledgendSize = legend->minHeight();
|
|
|
int topPadding = 2*m_marginTiny + titleSize.height() + ledgendSize + m_marginTiny;
|
|
|
m_chartMargins = QRect(QPoint(m_chartMargins.left(),topPadding),QPoint(m_chartMargins.right(),m_chartMargins.bottom()));
|
|
|
m_legendMargins = QRect(QPoint(m_chartMargins.left(),topPadding - (ledgendSize + m_marginTiny)),QPoint(m_chartMargins.right(),m_rect.height()-topPadding + m_marginTiny));
|
|
|
titlePadding = m_marginTiny + m_marginTiny;
|
|
|
break;
|
|
|
}
|
|
|
case QLegend::AlignmentBottom: {
|
|
|
int ledgendSize = legend->minHeight();
|
|
|
int bottomPadding = m_marginTiny + m_marginSmall + ledgendSize + m_marginTiny + m_minBottomMargin;
|
|
|
m_chartMargins = QRect(QPoint(m_chartMargins.left(),m_chartMargins.top()),QPoint(m_chartMargins.right(),bottomPadding));
|
|
|
m_legendMargins = QRect(QPoint(m_chartMargins.left(),m_rect.height()-bottomPadding + m_marginTiny + m_minBottomMargin),QPoint(m_chartMargins.right(),m_marginTiny + m_marginSmall));
|
|
|
titlePadding = m_chartMargins.top()/2;
|
|
|
break;
|
|
|
}
|
|
|
case QLegend::AlignmentLeft: {
|
|
|
int ledgendSize = legend->minWidth();
|
|
|
int leftPadding = m_marginTiny + m_marginSmall + ledgendSize + m_marginTiny + m_minLeftMargin;
|
|
|
m_chartMargins = QRect(QPoint(leftPadding,m_chartMargins.top()),QPoint(m_chartMargins.right(),m_chartMargins.bottom()));
|
|
|
m_legendMargins = QRect(QPoint(m_marginTiny + m_marginSmall,m_chartMargins.top()),QPoint(m_rect.width()-leftPadding + m_marginTiny + m_minLeftMargin,m_chartMargins.bottom()));
|
|
|
titlePadding = m_chartMargins.top()/2;
|
|
|
break;
|
|
|
}
|
|
|
case QLegend::AlignmentRight: {
|
|
|
int ledgendSize = legend->minWidth();
|
|
|
int rightPadding = m_marginTiny + m_marginSmall + ledgendSize + m_marginTiny;
|
|
|
m_chartMargins = QRect(QPoint(m_chartMargins.left(),m_chartMargins.top()),QPoint(rightPadding,m_chartMargins.bottom()));
|
|
|
m_legendMargins = QRect(QPoint(m_rect.width()- rightPadding+ m_marginTiny ,m_chartMargins.top()),QPoint(m_marginTiny + m_marginSmall,m_chartMargins.bottom()));
|
|
|
titlePadding = m_chartMargins.top()/2;
|
|
|
break;
|
|
|
}
|
|
|
default: {
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
if(m_rect.width()<2*(m_chartMargins.top()+m_chartMargins.bottom()) || m_rect.height()< 2*(m_chartMargins.top() + m_chartMargins.bottom()))
|
|
|
{
|
|
|
m_chart->setMinimumSize(2*(m_chartMargins.top()+m_chartMargins.bottom()),2*(m_chartMargins.top() + m_chartMargins.bottom()));
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
|
|
|
// recalculate title position
|
|
|
if (m_titleItem) {
|
|
|
QPointF center = m_rect.center() -m_titleItem->boundingRect().center();
|
|
|
m_titleItem->setPos(center.x(),titlePadding);
|
|
|
}
|
|
|
|
|
|
//recalculate background gradient
|
|
|
if (m_backgroundItem) {
|
|
|
m_backgroundItem->setRect(m_rect.adjusted(m_marginTiny,m_marginTiny, -m_marginTiny, -m_marginTiny));
|
|
|
}
|
|
|
|
|
|
|
|
|
QRectF chartRect = m_rect.adjusted(m_chartMargins.left(),m_chartMargins.top(),-m_chartMargins.right(),-m_chartMargins.bottom());
|
|
|
|
|
|
legend->setGeometry(m_rect.adjusted(m_legendMargins.left(),m_legendMargins.top(),-m_legendMargins.right(),-m_legendMargins.bottom()));
|
|
|
|
|
|
if(m_chartRect!=chartRect){
|
|
|
m_chartRect=chartRect;
|
|
|
emit geometryChanged(m_chartRect);
|
|
|
}
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::createChartBackgroundItem()
|
|
|
{
|
|
|
if (!m_backgroundItem) {
|
|
|
m_backgroundItem = new ChartBackground(rootItem());
|
|
|
m_backgroundItem->setPen(Qt::NoPen);
|
|
|
m_backgroundItem->setZValue(ChartPresenter::BackgroundZValue);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void ChartPresenter::createChartTitleItem()
|
|
|
{
|
|
|
if (!m_titleItem) {
|
|
|
m_titleItem = new QGraphicsSimpleTextItem(rootItem());
|
|
|
m_titleItem->setZValue(ChartPresenter::BackgroundZValue);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
#include "moc_chartpresenter_p.cpp"
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
