chartpresenter.cpp
449 lines
| 10.9 KiB
| text/x-c
|
CppLexer
/ src / chartpresenter.cpp
Jani Honkonen
|
r794 | /**************************************************************************** | ||
Michal Klocek
|
r969 | ** | ||
| ** 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 "chartpresenter_p.h" | ||||
|
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r139 | #include "qchart.h" | ||
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r855 | #include "qchart_p.h" | ||
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r1541 | #include "qabstractaxis.h" | ||
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r1556 | #include "qabstractaxis_p.h" | ||
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r131 | #include "chartdataset_p.h" | ||
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r143 | #include "charttheme_p.h" | ||
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r1241 | #include "chartanimation_p.h" | ||
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r988 | #include "qabstractseries_p.h" | ||
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r421 | #include "qareaseries.h" | ||
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r1006 | #include "chartaxis_p.h" | ||
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r1561 | //#include "chartaxisx_p.h" | ||
| //#include "chartaxisy_p.h" | ||||
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r421 | #include "areachartitem_p.h" | ||
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r1006 | #include "chartbackground_p.h" | ||
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r1534 | #include "chartlayout_p.h" | ||
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r1241 | #include <QTimer> | ||
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r131 | |||
| QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
| ChartPresenter::ChartPresenter(QChart* chart,ChartDataSet* dataset):QObject(chart), | ||||
|
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r969 | m_chart(chart), | ||
| m_dataset(dataset), | ||||
| m_chartTheme(0), | ||||
| m_options(QChart::NoAnimation), | ||||
|
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r1241 | m_state(ShowState), | ||
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r1534 | m_layout(new ChartLayout(this)), | ||
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r969 | m_backgroundItem(0), | ||
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r1534 | m_titleItem(0) | ||
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r131 | { | ||
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r1241 | |||
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r131 | } | ||
| ChartPresenter::~ChartPresenter() | ||||
| { | ||||
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r969 | delete m_chartTheme; | ||
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r131 | } | ||
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r855 | void ChartPresenter::setGeometry(const QRectF& rect) | ||
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r131 | { | ||
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r855 | |||
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r1534 | Q_ASSERT(rect.isValid()); | ||
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r855 | |||
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r1534 | if(m_rect!=rect) { | ||
| m_rect=rect; | ||||
| emit geometryChanged(m_rect); | ||||
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r855 | } | ||
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r139 | } | ||
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r131 | |||
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r1541 | void ChartPresenter::handleAxisAdded(QAbstractAxis* axis,Domain* domain) | ||
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r223 | { | ||
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r1556 | ChartAxis* item = axis->d_ptr->createGraphics(this); | ||
| item->setDomain(domain); | ||||
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r298 | |||
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r530 | if(m_options.testFlag(QChart::GridAxisAnimations)){ | ||
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r1241 | item->setAnimation(new AxisAnimation(item)); | ||
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r439 | } | ||
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r530 | |||
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r967 | QObject::connect(this,SIGNAL(geometryChanged(QRectF)),item,SLOT(handleGeometryChanged(QRectF))); | ||
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r1698 | QObject::connect(domain,SIGNAL(updated()),item,SLOT(handleDomainUpdated())); | ||
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r1626 | QObject::connect(axis,SIGNAL(visibleChanged(bool)),this,SLOT(handleAxisVisibleChanged(bool))); | ||
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r1698 | |||
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r439 | //initialize | ||
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r1698 | domain->emitUpdated(); | ||
| m_chartTheme->decorate(axis); | ||||
| axis->d_ptr->setDirty(false); | ||||
| axis->d_ptr->emitUpdated(); | ||||
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r1534 | if(m_rect.isValid()) item->handleGeometryChanged(m_rect); | ||
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r1698 | |||
|
Tero Ahola
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r561 | m_axisItems.insert(axis, item); | ||
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r1628 | selectVisibleAxis(); | ||
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r223 | } | ||
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r1541 | void ChartPresenter::handleAxisRemoved(QAbstractAxis* axis) | ||
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r223 | { | ||
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r1006 | ChartAxis* item = m_axisItems.take(axis); | ||
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r223 | Q_ASSERT(item); | ||
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r1628 | selectVisibleAxis(); | ||
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r1729 | item->hide(); | ||
| item->disconnect(); | ||||
| QObject::disconnect(this,0,item,0); | ||||
sauimone
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r1562 | item->deleteLater(); | ||
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r223 | } | ||
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Tero Ahola
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r988 | void ChartPresenter::handleSeriesAdded(QAbstractSeries* series,Domain* domain) | ||
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r131 | { | ||
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r1736 | ChartElement *item = series->d_ptr->createGraphics(this); | ||
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r969 | Q_ASSERT(item); | ||
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r1556 | item->setDomain(domain); | ||
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r969 | QObject::connect(this,SIGNAL(geometryChanged(QRectF)),item,SLOT(handleGeometryChanged(QRectF))); | ||
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r1698 | QObject::connect(domain,SIGNAL(updated()),item,SLOT(handleDomainUpdated())); | ||
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r969 | //initialize | ||
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r1698 | item->handleDomainUpdated(); | ||
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r1534 | if(m_rect.isValid()) item->handleGeometryChanged(m_rect); | ||
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r969 | m_chartItems.insert(series,item); | ||
|
Michal Klocek
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r131 | } | ||
|
Tero Ahola
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r988 | void ChartPresenter::handleSeriesRemoved(QAbstractSeries* series) | ||
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r139 | { | ||
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r1736 | ChartElement* item = m_chartItems.take(series); | ||
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r530 | Q_ASSERT(item); | ||
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sauimone
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r1562 | item->deleteLater(); | ||
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r139 | } | ||
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r131 | |||
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r1628 | void ChartPresenter::selectVisibleAxis() | ||
| { | ||||
| QMapIterator<QAbstractAxis*, ChartAxis*> i(m_axisItems); | ||||
| while (i.hasNext()) { | ||||
| i.next(); | ||||
| i.key()->hide(); | ||||
| } | ||||
| i.toFront(); | ||||
| bool axisX=false; | ||||
| bool axisY=false; | ||||
| while (i.hasNext()) { | ||||
| i.next(); | ||||
|
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r1698 | if(i.key()->orientation()==Qt::Vertical && !axisY) { | ||
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r1628 | axisY=true; | ||
| i.key()->show(); | ||||
| } | ||||
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r1698 | if(i.key()->orientation()==Qt::Horizontal && !axisX) { | ||
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r1628 | axisX=true; | ||
| i.key()->show(); | ||||
| } | ||||
| } | ||||
| } | ||||
|
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r1626 | |||
| void ChartPresenter::handleAxisVisibleChanged(bool visible) | ||||
| { | ||||
| QAbstractAxis* axis = static_cast<QAbstractAxis*> (sender()); | ||||
| Q_ASSERT(axis); | ||||
| if(visible){ | ||||
| QMapIterator<QAbstractAxis*, ChartAxis*> i(m_axisItems); | ||||
| while (i.hasNext()) { | ||||
| i.next(); | ||||
| if(i.key()==axis) { | ||||
| continue; | ||||
| } | ||||
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r1698 | if(i.key()->orientation()==axis->orientation()) { | ||
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r1626 | i.key()->setVisible(false); | ||
| } | ||||
| } | ||||
| } | ||||
| } | ||||
|
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r740 | void ChartPresenter::setTheme(QChart::ChartTheme theme,bool force) | ||
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r143 | { | ||
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r969 | if(m_chartTheme && m_chartTheme->id() == theme) return; | ||
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r143 | delete m_chartTheme; | ||
| m_chartTheme = ChartTheme::createTheme(theme); | ||||
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r943 | m_chartTheme->setForced(force); | ||
| m_chartTheme->decorate(m_chart); | ||||
| m_chartTheme->decorate(m_chart->legend()); | ||||
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r531 | resetAllElements(); | ||
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Jani Honkonen
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r1093 | |||
| // We do not want "force" to stay on. | ||||
| // Bar/pie are calling decorate when adding/removing slices/bars which means | ||||
| // that to preserve users colors "force" must not be on. | ||||
| m_chartTheme->setForced(false); | ||||
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r176 | } | ||
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r740 | QChart::ChartTheme ChartPresenter::theme() | ||
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r143 | { | ||
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r153 | return m_chartTheme->id(); | ||
| } | ||||
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r298 | void ChartPresenter::setAnimationOptions(QChart::AnimationOptions options) | ||
| { | ||||
| if(m_options!=options) { | ||||
| m_options=options; | ||||
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r531 | resetAllElements(); | ||
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r298 | } | ||
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r530 | |||
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r298 | } | ||
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r531 | void ChartPresenter::resetAllElements() | ||
| { | ||||
|
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r1556 | QMapIterator<QAbstractAxis*, ChartAxis*> i(m_axisItems); | ||
| while (i.hasNext()) { | ||||
| i.next(); | ||||
| Domain* domain = i.value()->domain(); | ||||
| QAbstractAxis* axis = i.key(); | ||||
| handleAxisRemoved(axis); | ||||
| handleAxisAdded(axis,domain); | ||||
|
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r969 | } | ||
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r1556 | |||
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r1736 | QMapIterator<QAbstractSeries*, ChartElement*> j(m_chartItems); | ||
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r1556 | while (j.hasNext()) { | ||
| j.next(); | ||||
| Domain* domain = j.value()->domain(); | ||||
| QAbstractSeries* series = j.key(); | ||||
| handleSeriesRemoved(series); | ||||
| handleSeriesAdded(series,domain); | ||||
| } | ||||
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r531 | } | ||
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r1187 | void ChartPresenter::zoomIn(qreal factor) | ||
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r439 | { | ||
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r1534 | QRectF rect = geometry(); | ||
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r1187 | rect.setWidth(rect.width()/factor); | ||
| rect.setHeight(rect.height()/factor); | ||||
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r1534 | rect.moveCenter(geometry().center()); | ||
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r969 | zoomIn(rect); | ||
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r439 | } | ||
| void ChartPresenter::zoomIn(const QRectF& rect) | ||||
| { | ||||
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r969 | QRectF r = rect.normalized(); | ||
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r1534 | r.translate(-geometry().topLeft()); | ||
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r1187 | if (!r.isValid()) | ||
| return; | ||||
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r969 | |||
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r1241 | m_state = ZoomInState; | ||
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r1534 | m_statePoint = QPointF(r.center().x()/geometry().width(),r.center().y()/geometry().height()); | ||
| m_dataset->zoomInDomain(r,geometry().size()); | ||||
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r1241 | m_state = ShowState; | ||
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r439 | } | ||
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r1187 | void ChartPresenter::zoomOut(qreal factor) | ||
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r439 | { | ||
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r1241 | m_state = ZoomOutState; | ||
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r678 | |||
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r1187 | QRectF chartRect; | ||
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r1534 | chartRect.setSize(geometry().size()); | ||
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r678 | |||
|
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r1187 | QRectF rect; | ||
| rect.setSize(chartRect.size()/factor); | ||||
| rect.moveCenter(chartRect.center()); | ||||
| if (!rect.isValid()) | ||||
| return; | ||||
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r1534 | m_statePoint = QPointF(rect.center().x()/geometry().width(),rect.center().y()/geometry().height()); | ||
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r1187 | m_dataset->zoomOutDomain(rect, chartRect.size()); | ||
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r1241 | m_state = ShowState; | ||
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r439 | } | ||
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r1267 | void ChartPresenter::scroll(qreal dx,qreal dy) | ||
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r531 | { | ||
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r1241 | if(dx<0) m_state=ScrollLeftState; | ||
| if(dx>0) m_state=ScrollRightState; | ||||
| if(dy<0) m_state=ScrollUpState; | ||||
| if(dy>0) m_state=ScrollDownState; | ||||
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r531 | |||
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r1534 | m_dataset->scrollDomain(dx,dy,geometry().size()); | ||
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r1241 | m_state = ShowState; | ||
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r531 | } | ||
|
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r298 | QChart::AnimationOptions ChartPresenter::animationOptions() const | ||
| { | ||||
| return m_options; | ||||
| } | ||||
|
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r1534 | void ChartPresenter::createBackgroundItem() | ||
|
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r855 | { | ||
|
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r1534 | if (!m_backgroundItem) { | ||
| m_backgroundItem = new ChartBackground(rootItem()); | ||||
| m_backgroundItem->setPen(Qt::NoPen); | ||||
| m_backgroundItem->setZValue(ChartPresenter::BackgroundZValue); | ||||
| } | ||||
| } | ||||
|
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r855 | |||
|
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r1534 | void ChartPresenter::createTitleItem() | ||
| { | ||||
| if (!m_titleItem) { | ||||
| m_titleItem = new QGraphicsSimpleTextItem(rootItem()); | ||||
| m_titleItem->setZValue(ChartPresenter::BackgroundZValue); | ||||
| } | ||||
| } | ||||
|
Tero Ahola
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r1524 | |||
|
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r855 | |||
|
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r1534 | void ChartPresenter::handleAnimationFinished() | ||
| { | ||||
| m_animations.removeAll(qobject_cast<ChartAnimation*>(sender())); | ||||
| if(m_animations.empty()) emit animationsFinished(); | ||||
| } | ||||
|
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r855 | |||
|
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r1534 | void ChartPresenter::startAnimation(ChartAnimation* animation) | ||
| { | ||||
| if (animation->state() != QAbstractAnimation::Stopped) animation->stop(); | ||||
| QObject::connect(animation, SIGNAL(finished()),this,SLOT(handleAnimationFinished()),Qt::UniqueConnection); | ||||
| if(!m_animations.isEmpty()){ | ||||
| m_animations.append(animation); | ||||
|
Michal Klocek
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r855 | } | ||
|
Michal Klocek
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r1534 | QTimer::singleShot(0, animation, SLOT(start())); | ||
| } | ||||
|
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r855 | |||
|
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r1534 | QGraphicsRectItem* ChartPresenter::backgroundItem() | ||
| { | ||||
| return m_backgroundItem; | ||||
| } | ||||
|
Michal Klocek
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r855 | |||
|
Michal Klocek
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r1534 | void ChartPresenter::setBackgroundBrush(const QBrush& brush) | ||
| { | ||||
| createBackgroundItem(); | ||||
| m_backgroundItem->setBrush(brush); | ||||
| m_layout->invalidate(); | ||||
| } | ||||
|
Michal Klocek
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r855 | |||
|
Michal Klocek
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r1534 | QBrush ChartPresenter::backgroundBrush() const | ||
| { | ||||
| if (!m_backgroundItem) return QBrush(); | ||||
| return m_backgroundItem->brush(); | ||||
| } | ||||
|
Michal Klocek
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r855 | |||
|
Michal Klocek
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r1534 | void ChartPresenter::setBackgroundPen(const QPen& pen) | ||
| { | ||||
| createBackgroundItem(); | ||||
| m_backgroundItem->setPen(pen); | ||||
| m_layout->invalidate(); | ||||
| } | ||||
|
Michal Klocek
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r855 | |||
|
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r1534 | QPen ChartPresenter::backgroundPen() const | ||
| { | ||||
| if (!m_backgroundItem) return QPen(); | ||||
| return m_backgroundItem->pen(); | ||||
| } | ||||
|
Michal Klocek
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r855 | |||
|
Michal Klocek
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r1534 | QGraphicsItem* ChartPresenter::titleItem() | ||
| { | ||||
| return m_titleItem; | ||||
| } | ||||
|
Michal Klocek
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r913 | |||
|
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r1534 | void ChartPresenter::setTitle(const QString& title) | ||
| { | ||||
| createTitleItem(); | ||||
| m_titleItem->setText(title); | ||||
| m_layout->invalidate(); | ||||
| } | ||||
|
Michal Klocek
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r913 | |||
|
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r1534 | QString ChartPresenter::title() const | ||
| { | ||||
| if (!m_titleItem) return QString(); | ||||
| return m_titleItem->text(); | ||||
| } | ||||
|
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r855 | |||
|
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r1534 | void ChartPresenter::setTitleFont(const QFont& font) | ||
| { | ||||
| createTitleItem(); | ||||
| m_titleItem->setFont(font); | ||||
| m_layout->invalidate(); | ||||
| } | ||||
|
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r855 | |||
|
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r1534 | QFont ChartPresenter::titleFont() const | ||
| { | ||||
| if (!m_titleItem) return QFont(); | ||||
| return m_titleItem->font(); | ||||
| } | ||||
|
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r913 | |||
|
Michal Klocek
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r1534 | void ChartPresenter::setTitleBrush(const QBrush &brush) | ||
| { | ||||
| createTitleItem(); | ||||
| m_titleItem->setBrush(brush); | ||||
| m_layout->invalidate(); | ||||
| } | ||||
|
Michal Klocek
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r869 | |||
|
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r1534 | QBrush ChartPresenter::titleBrush() const | ||
| { | ||||
| if (!m_titleItem) return QBrush(); | ||||
| return m_titleItem->brush(); | ||||
| } | ||||
| void ChartPresenter::setBackgroundVisible(bool visible) | ||||
| { | ||||
| createBackgroundItem(); | ||||
| m_backgroundItem->setVisible(visible); | ||||
| } | ||||
|
Michal Klocek
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r871 | |||
|
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r855 | |||
|
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r1534 | bool ChartPresenter::isBackgroundVisible() const | ||
| { | ||||
| if (!m_backgroundItem) return false; | ||||
| return m_backgroundItem->isVisible(); | ||||
|
Michal Klocek
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r855 | } | ||
|
Michal Klocek
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r1534 | void ChartPresenter::setBackgroundDropShadowEnabled(bool enabled) | ||
|
Michal Klocek
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r855 | { | ||
|
Michal Klocek
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r1534 | createBackgroundItem(); | ||
| m_backgroundItem->setDropShadowEnabled(enabled); | ||||
|
Michal Klocek
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r855 | } | ||
|
Michal Klocek
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r1534 | bool ChartPresenter::isBackgroundDropShadowEnabled() const | ||
|
Michal Klocek
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r855 | { | ||
|
Michal Klocek
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r1534 | if (!m_backgroundItem) return false; | ||
| return m_backgroundItem->isDropShadowEnabled(); | ||||
|
Michal Klocek
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r855 | } | ||
|
Michal Klocek
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r143 | |||
|
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r1534 | |||
| QGraphicsLayout* ChartPresenter::layout() | ||||
|
Michal Klocek
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r1241 | { | ||
|
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r1534 | return m_layout; | ||
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r1241 | } | ||
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r1883 | void ChartPresenter::setMinimumMargins(const QMargins& margins) | ||
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r1241 | { | ||
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r1883 | m_layout->setMinimumMargins(margins); | ||
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r1534 | } | ||
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r1883 | QMargins ChartPresenter::minimumMargins() const | ||
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r1534 | { | ||
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r1883 | return m_layout->minimumMargins(); | ||
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r1534 | } | ||
| QLegend* ChartPresenter::legend() | ||||
| { | ||||
| return m_chart->legend(); | ||||
| } | ||||
| QList<ChartAxis*> ChartPresenter::axisItems() const | ||||
| { | ||||
| return m_axisItems.values(); | ||||
| } | ||||
| void ChartPresenter::setVisible(bool visible) | ||||
| { | ||||
| m_chart->setVisible(visible); | ||||
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r1241 | } | ||
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r131 | #include "moc_chartpresenter_p.cpp" | ||
| QTCOMMERCIALCHART_END_NAMESPACE | ||||