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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 "qabstractaxis_p.h"
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#include "chartdataset_p.h"
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#include "charttheme_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 "chartbackground_p.h"
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#include "chartlayout_p.h"
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#include "charttitle_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)
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: QObject(chart),
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m_chart(chart),
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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_background(0),
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m_title(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::handleAxisAdded(QAbstractAxis *axis, Domain *domain)
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{
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ChartAxis *item = axis->d_ptr->createGraphics(this);
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item->setDomain(domain);
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if (m_options.testFlag(QChart::GridAxisAnimations))
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item->setAnimation(new AxisAnimation(item));
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QObject::connect(domain, SIGNAL(updated()), item, SLOT(handleDomainUpdated()));
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//initialize
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domain->emitUpdated();
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m_chartTheme->decorate(axis);
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axis->d_ptr->setDirty(false);
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axis->d_ptr->emitUpdated();
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m_axisItems.insert(axis, item);
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m_layout->invalidate();
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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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item->hide();
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item->disconnect();
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QObject::disconnect(this, 0, item, 0);
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item->deleteLater();
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m_layout->invalidate();
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}
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void ChartPresenter::handleSeriesAdded(QAbstractSeries *series, Domain *domain)
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{
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ChartElement *item = series->d_ptr->createGraphics(this);
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Q_ASSERT(item);
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item->setDomain(domain);
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QObject::connect(domain, SIGNAL(updated()), item, SLOT(handleDomainUpdated()));
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//initialize
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item->handleDomainUpdated();
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m_chartItems.insert(series, item);
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m_layout->invalidate();
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}
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void ChartPresenter::handleSeriesRemoved(QAbstractSeries *series)
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{
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ChartElement *item = m_chartItems.take(series);
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Q_ASSERT(item);
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item->deleteLater();
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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)
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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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resetAllElements();
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}
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}
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void ChartPresenter::resetAllElements()
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{
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QMapIterator<QAbstractAxis *, ChartAxis *> i(m_axisItems);
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while (i.hasNext()) {
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i.next();
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Domain *domain = i.value()->domain();
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QAbstractAxis *axis = i.key();
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handleAxisRemoved(axis);
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handleAxisAdded(axis, domain);
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}
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QMapIterator<QAbstractSeries *, ChartElement *> j(m_chartItems);
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while (j.hasNext()) {
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j.next();
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Domain *domain = j.value()->domain();
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QAbstractSeries *series = j.key();
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handleSeriesRemoved(series);
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handleSeriesAdded(series, domain);
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}
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layout()->invalidate();
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}
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void ChartPresenter::zoomIn(qreal factor)
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{
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QRectF rect = m_layout->chartsGeometry();
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rect.setWidth(rect.width() / factor);
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rect.setHeight(rect.height() / factor);
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rect.moveCenter(m_layout->chartsGeometry().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(-m_layout->chartsGeometry().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() / m_layout->chartsGeometry().width(), r.center().y() / m_layout->chartsGeometry().height());
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m_dataset->zoomInDomain(r, m_layout->chartsGeometry().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(m_layout->chartsGeometry().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() / m_layout->chartsGeometry().width(), rect.center().y() / m_layout->chartsGeometry().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, m_layout->chartsGeometry().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_background) {
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m_background = new ChartBackground(rootItem());
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m_background->setPen(Qt::NoPen);
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m_background->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_title) {
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m_title = new ChartTitle(rootItem());
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m_title->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())
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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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QTimer::singleShot(0, animation, SLOT(start()));
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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_background->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_background)
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return QBrush();
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return m_background->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_background->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_background)
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return QPen();
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return m_background->pen();
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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_title->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_title)
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return QString();
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return m_title->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_title->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_title)
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return QFont();
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return m_title->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_title->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_title)
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return QBrush();
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return m_title->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_background->setVisible(visible);
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}
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bool ChartPresenter::isBackgroundVisible() const
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{
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if (!m_background)
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return false;
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return m_background->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_background->setDropShadowEnabled(enabled);
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}
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bool ChartPresenter::isBackgroundDropShadowEnabled() const
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{
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if (!m_background)
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return false;
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return m_background->isDropShadowEnabled();
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}
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ChartLayout *ChartPresenter::layout()
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{
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return m_layout;
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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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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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ChartBackground *ChartPresenter::backgroundElement()
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{
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return m_background;
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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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QList<ChartElement *> ChartPresenter::chartItems() const
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{
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return m_chartItems.values();
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}
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ChartTitle *ChartPresenter::titleElement()
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{
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return m_title;
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}
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#include "moc_chartpresenter_p.cpp"
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QTCOMMERCIALCHART_END_NAMESPACE
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