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/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc
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** All rights reserved.
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** For any questions to Digia, please use contact form at http://qt.digia.com
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**
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** This file is part of the Qt Commercial Charts Add-on.
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**
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** $QT_BEGIN_LICENSE$
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia.
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**
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** If you have questions regarding the use of this file, please use
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** contact form at http://qt.digia.com
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "chartpresenter_p.h"
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#include "qchart.h"
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#include "qchart_p.h"
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#include "qabstractaxis.h"
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#include "chartdataset_p.h"
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#include "charttheme_p.h"
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#include "chartanimator_p.h"
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#include "chartanimation_p.h"
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#include "qabstractseries_p.h"
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#include "qareaseries.h"
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#include "chartaxis_p.h"
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#include "chartaxisx_p.h"
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#include "chartaxisy_p.h"
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#include "areachartitem_p.h"
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#include "chartbackground_p.h"
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#include "chartlayout_p.h"
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#include <QTimer>
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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ChartPresenter::ChartPresenter(QChart* chart,ChartDataSet* dataset):QObject(chart),
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m_chart(chart),
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m_animator(0),
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m_dataset(dataset),
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m_chartTheme(0),
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m_options(QChart::NoAnimation),
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m_state(ShowState),
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m_layout(new ChartLayout(this)),
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m_backgroundItem(0),
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m_titleItem(0)
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{
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}
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ChartPresenter::~ChartPresenter()
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{
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delete m_chartTheme;
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}
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void ChartPresenter::setGeometry(const QRectF& rect)
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{
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Q_ASSERT(rect.isValid());
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if(m_rect!=rect) {
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m_rect=rect;
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emit geometryChanged(m_rect);
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}
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}
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void ChartPresenter::handleAxisAdded(QAbstractAxis* axis,Domain* domain)
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{
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ChartAxis* item;
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if(axis == m_dataset->axisX()){
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item = new ChartAxisX(axis,this);
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}else{
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item = new ChartAxisY(axis,this);
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}
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if(m_options.testFlag(QChart::GridAxisAnimations)){
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item->setAnimator(m_animator);
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item->setAnimation(new AxisAnimation(item));
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}
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if(axis==m_dataset->axisX()){
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m_chartTheme->decorate(axis,true);
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QObject::connect(domain,SIGNAL(rangeXChanged(qreal,qreal,int)),item,SLOT(handleRangeChanged(qreal,qreal,int)));
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//initialize
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item->handleRangeChanged(domain->minX(),domain->maxX(),domain->tickXCount());
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}
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else{
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m_chartTheme->decorate(axis,false);
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QObject::connect(domain,SIGNAL(rangeYChanged(qreal,qreal,int)),item,SLOT(handleRangeChanged(qreal,qreal,int)));
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//initialize
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item->handleRangeChanged(domain->minY(),domain->maxY(),domain->tickYCount());
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}
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QObject::connect(this,SIGNAL(geometryChanged(QRectF)),item,SLOT(handleGeometryChanged(QRectF)));
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//initialize
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if(m_rect.isValid()) item->handleGeometryChanged(m_rect);
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m_axisItems.insert(axis, item);
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}
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void ChartPresenter::handleAxisRemoved(QAbstractAxis* axis)
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{
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ChartAxis* item = m_axisItems.take(axis);
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Q_ASSERT(item);
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if(m_animator) m_animator->removeAnimation(item);
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delete item;
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}
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void ChartPresenter::handleSeriesAdded(QAbstractSeries* series,Domain* domain)
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{
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Chart *item = series->d_ptr->createGraphics(this);
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Q_ASSERT(item);
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QObject::connect(this,SIGNAL(geometryChanged(QRectF)),item,SLOT(handleGeometryChanged(QRectF)));
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QObject::connect(domain,SIGNAL(domainChanged(qreal,qreal,qreal,qreal)),item,SLOT(handleDomainChanged(qreal,qreal,qreal,qreal)));
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//initialize
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item->handleDomainChanged(domain->minX(),domain->maxX(),domain->minY(),domain->maxY());
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if(m_rect.isValid()) item->handleGeometryChanged(m_rect);
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m_chartItems.insert(series,item);
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}
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void ChartPresenter::handleSeriesRemoved(QAbstractSeries* series)
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{
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Chart* item = m_chartItems.take(series);
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Q_ASSERT(item);
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if(m_animator) {
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//small hack to handle area animations
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if(series->type() == QAbstractSeries::SeriesTypeArea){
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QAreaSeries* areaSeries = static_cast<QAreaSeries*>(series);
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AreaChartItem* area = static_cast<AreaChartItem*>(item);
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m_animator->removeAnimation(area->upperLineItem());
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if(areaSeries->lowerSeries()) m_animator->removeAnimation(area->lowerLineItem());
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}else
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m_animator->removeAnimation(item);
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}
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delete item;
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}
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void ChartPresenter::setTheme(QChart::ChartTheme theme,bool force)
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{
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if(m_chartTheme && m_chartTheme->id() == theme) return;
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delete m_chartTheme;
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m_chartTheme = ChartTheme::createTheme(theme);
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m_chartTheme->setForced(force);
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m_chartTheme->decorate(m_chart);
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m_chartTheme->decorate(m_chart->legend());
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resetAllElements();
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// We do not want "force" to stay on.
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// Bar/pie are calling decorate when adding/removing slices/bars which means
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// that to preserve users colors "force" must not be on.
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m_chartTheme->setForced(false);
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}
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QChart::ChartTheme ChartPresenter::theme()
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{
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return m_chartTheme->id();
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}
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void ChartPresenter::setAnimationOptions(QChart::AnimationOptions options)
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{
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if(m_options!=options) {
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m_options=options;
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if(m_options!=QChart::NoAnimation && !m_animator) {
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m_animator= new ChartAnimator(this);
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}
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resetAllElements();
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}
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}
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void ChartPresenter::resetAllElements()
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{
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QList<QAbstractAxis*> axisList = m_axisItems.uniqueKeys();
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QList<QAbstractSeries *> seriesList = m_chartItems.uniqueKeys();
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foreach(QAbstractAxis *axis, axisList) {
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handleAxisRemoved(axis);
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handleAxisAdded(axis,m_dataset->domain(axis));
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}
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foreach(QAbstractSeries *series, seriesList) {
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handleSeriesRemoved(series);
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handleSeriesAdded(series,m_dataset->domain(series));
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// m_dataset->removeSeries(series);
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// m_dataset->addSeries(series);
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}
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}
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void ChartPresenter::zoomIn(qreal factor)
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{
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QRectF rect = geometry();
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rect.setWidth(rect.width()/factor);
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rect.setHeight(rect.height()/factor);
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rect.moveCenter(geometry().center());
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zoomIn(rect);
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}
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void ChartPresenter::zoomIn(const QRectF& rect)
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{
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QRectF r = rect.normalized();
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r.translate(-geometry().topLeft());
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if (!r.isValid())
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return;
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m_state = ZoomInState;
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m_statePoint = QPointF(r.center().x()/geometry().width(),r.center().y()/geometry().height());
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m_dataset->zoomInDomain(r,geometry().size());
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m_state = ShowState;
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}
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void ChartPresenter::zoomOut(qreal factor)
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{
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m_state = ZoomOutState;
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QRectF chartRect;
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chartRect.setSize(geometry().size());
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QRectF rect;
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rect.setSize(chartRect.size()/factor);
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rect.moveCenter(chartRect.center());
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if (!rect.isValid())
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return;
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m_statePoint = QPointF(rect.center().x()/geometry().width(),rect.center().y()/geometry().height());
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m_dataset->zoomOutDomain(rect, chartRect.size());
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m_state = ShowState;
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}
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void ChartPresenter::scroll(qreal dx,qreal dy)
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{
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if(dx<0) m_state=ScrollLeftState;
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if(dx>0) m_state=ScrollRightState;
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if(dy<0) m_state=ScrollUpState;
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if(dy>0) m_state=ScrollDownState;
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m_dataset->scrollDomain(dx,dy,geometry().size());
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m_state = ShowState;
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}
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QChart::AnimationOptions ChartPresenter::animationOptions() const
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{
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return m_options;
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}
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void ChartPresenter::createBackgroundItem()
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{
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if (!m_backgroundItem) {
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m_backgroundItem = new ChartBackground(rootItem());
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m_backgroundItem->setPen(Qt::NoPen);
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m_backgroundItem->setZValue(ChartPresenter::BackgroundZValue);
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}
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}
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void ChartPresenter::createTitleItem()
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{
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if (!m_titleItem) {
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m_titleItem = new QGraphicsSimpleTextItem(rootItem());
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m_titleItem->setZValue(ChartPresenter::BackgroundZValue);
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}
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}
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void ChartPresenter::handleAnimationFinished()
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{
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m_animations.removeAll(qobject_cast<ChartAnimation*>(sender()));
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if(m_animations.empty()) emit animationsFinished();
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}
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void ChartPresenter::startAnimation(ChartAnimation* animation)
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{
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if (animation->state() != QAbstractAnimation::Stopped) animation->stop();
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QObject::connect(animation, SIGNAL(finished()),this,SLOT(handleAnimationFinished()),Qt::UniqueConnection);
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if(!m_animations.isEmpty()){
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m_animations.append(animation);
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}
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QTimer::singleShot(0, animation, SLOT(start()));
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}
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QGraphicsRectItem* ChartPresenter::backgroundItem()
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{
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return m_backgroundItem;
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}
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void ChartPresenter::setBackgroundBrush(const QBrush& brush)
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{
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createBackgroundItem();
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m_backgroundItem->setBrush(brush);
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m_layout->invalidate();
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}
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QBrush ChartPresenter::backgroundBrush() const
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{
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if (!m_backgroundItem) return QBrush();
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return m_backgroundItem->brush();
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}
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void ChartPresenter::setBackgroundPen(const QPen& pen)
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{
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createBackgroundItem();
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m_backgroundItem->setPen(pen);
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m_layout->invalidate();
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}
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QPen ChartPresenter::backgroundPen() const
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{
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if (!m_backgroundItem) return QPen();
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return m_backgroundItem->pen();
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}
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QGraphicsItem* ChartPresenter::titleItem()
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{
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return m_titleItem;
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}
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void ChartPresenter::setTitle(const QString& title)
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{
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createTitleItem();
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m_titleItem->setText(title);
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m_layout->invalidate();
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}
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QString ChartPresenter::title() const
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{
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if (!m_titleItem) return QString();
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return m_titleItem->text();
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}
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void ChartPresenter::setTitleFont(const QFont& font)
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{
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createTitleItem();
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m_titleItem->setFont(font);
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m_layout->invalidate();
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}
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QFont ChartPresenter::titleFont() const
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{
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if (!m_titleItem) return QFont();
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return m_titleItem->font();
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}
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void ChartPresenter::setTitleBrush(const QBrush &brush)
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{
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createTitleItem();
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m_titleItem->setBrush(brush);
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m_layout->invalidate();
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}
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QBrush ChartPresenter::titleBrush() const
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{
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if (!m_titleItem) return QBrush();
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return m_titleItem->brush();
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}
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void ChartPresenter::setBackgroundVisible(bool visible)
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{
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createBackgroundItem();
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m_backgroundItem->setVisible(visible);
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}
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bool ChartPresenter::isBackgroundVisible() const
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{
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if (!m_backgroundItem) return false;
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return m_backgroundItem->isVisible();
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}
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void ChartPresenter::setBackgroundDropShadowEnabled(bool enabled)
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{
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createBackgroundItem();
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m_backgroundItem->setDropShadowEnabled(enabled);
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}
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bool ChartPresenter::isBackgroundDropShadowEnabled() const
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{
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if (!m_backgroundItem) return false;
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return m_backgroundItem->isDropShadowEnabled();
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}
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QGraphicsLayout* ChartPresenter::layout()
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{
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return m_layout;
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}
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void ChartPresenter::setMarginsMinimum(const QRectF& margins)
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{
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Q_UNUSED(margins);
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// m_layout->setMarginsMinimum(margins);
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}
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QRectF ChartPresenter::margins() const
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{
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return QRectF();//m_layout->margins();
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}
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QLegend* ChartPresenter::legend()
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{
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return m_chart->legend();
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}
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QList<ChartAxis*> ChartPresenter::axisItems() const
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{
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return m_axisItems.values();
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}
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void ChartPresenter::setVisible(bool visible)
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{
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m_chart->setVisible(visible);
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}
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#include "moc_chartpresenter_p.cpp"
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QTCOMMERCIALCHART_END_NAMESPACE
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