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Diffstat (limited to 'src/declarative/particles/qsgmodelparticle.cpp')
| -rw-r--r-- | src/declarative/particles/qsgmodelparticle.cpp | 335 |
1 files changed, 0 insertions, 335 deletions
diff --git a/src/declarative/particles/qsgmodelparticle.cpp b/src/declarative/particles/qsgmodelparticle.cpp deleted file mode 100644 index c013d726a3..0000000000 --- a/src/declarative/particles/qsgmodelparticle.cpp +++ /dev/null @@ -1,335 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the Declarative module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** This file may be used under the terms of the GNU Lesser General Public -** License version 2.1 as published by the Free Software Foundation and -** appearing in the file LICENSE.LGPL included in the packaging of this -** file. Please review the following information to ensure the GNU Lesser -** General Public License version 2.1 requirements will be met: -** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU General -** Public License version 3.0 as published by the Free Software Foundation -** and appearing in the file LICENSE.GPL included in the packaging of this -** file. Please review the following information to ensure the GNU General -** Public License version 3.0 requirements will be met: -** http://www.gnu.org/copyleft/gpl.html. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qsgmodelparticle_p.h" -#include <QtDeclarative/private/qsgvisualitemmodel_p.h> -#include <qsgnode.h> -#include <QTimer> -#include <QDebug> - -QT_BEGIN_NAMESPACE -/*! - \qmlclass ModelParticle QSGModelParticle - \inqmlmodule QtQuick.Particles 2 - \inherits ParticlePainter - \brief The ModelParticle element allows you to specify a model and delegate pair to paint particles. - -*/ - - -/*! - \qmlmethod void QtQuick.Particles2::ModelParticle::freeze(Item item) - - Suspends the flow of time for the logical particle which item represents, allowing you to control its movement. -*/ - -/*! - \qmlmethod void QtQuick.Particles2::ModelParticle::unfreeze(Item item) - - Restarts the flow of time for the logical particle which item represents, allowing it to be moved by the particle system again. -*/ - -/*! - \qmlproperty bool QtQuick.Particles2::ModelParticle::fade - - If true, the item will automatically be faded in and out - at the ends of its lifetime. If false, you will have to - implement any entry effect yourself. - - Default is true. -*/ - -/*! - \qmlproperty model QtQuick.Particles2::ModelParticle::model - - The model to use as a data source. Every time a particle is - emitted, the next model entry will be used with a delegate - to visualize it. -*/ - -/*! - \qmlproperty Component QtQuick.Particles2::ModelParticle::delegate - - An instance of the delegate will be created for every model - entry, and moved along with it. -*/ - -QSGModelParticle::QSGModelParticle(QSGItem *parent) : - QSGParticlePainter(parent), m_ownModel(false), m_comp(0), m_model(0), m_fade(true), m_modelCount(0) -{ - setFlag(QSGItem::ItemHasContents); - QTimer* manageDelegates = new QTimer(this);//TODO: don't leak - connect(manageDelegates, SIGNAL(timeout()), - this, SLOT(processPending())); - manageDelegates->setInterval(16); - manageDelegates->setSingleShot(false); - manageDelegates->start(); -} - -QSGModelParticle::~QSGModelParticle() -{ - if (m_ownModel) - delete m_model; -} - -QVariant QSGModelParticle::model() const -{ - return m_dataSource; -} - -void QSGModelParticle::setModel(const QVariant &arg) -{ - if (arg == m_dataSource) - return; - m_dataSource = arg; - if (qobject_cast<QSGVisualDataModel*>(arg.value<QObject*>())) { - if (m_ownModel && m_model) - delete m_model; - m_model = qobject_cast<QSGVisualDataModel*>(arg.value<QObject*>()); - m_ownModel = false; - }else{ - if (!m_model || !m_ownModel) - m_model = new QSGVisualDataModel(qmlContext(this)); - m_model->setModel(m_dataSource); - m_ownModel = true; - } - if (m_comp) - m_model->setDelegate(m_comp); - emit modelChanged(); - emit modelCountChanged(); - connect(m_model, SIGNAL(countChanged()), - this, SIGNAL(modelCountChanged())); - connect(m_model, SIGNAL(countChanged()), - this, SLOT(updateCount())); - updateCount(); -} - -void QSGModelParticle::updateCount() -{ - int newCount = 0; - if (m_model) - newCount = m_model->count(); - if (newCount < 0) - return;//WTF? - if (m_modelCount == 0 || newCount == 0){ - m_available.clear(); - for (int i=0; i<newCount; i++) - m_available << i; - }else if (newCount < m_modelCount){ - for (int i=newCount; i<m_modelCount; i++) //existing ones must leave normally, but aren't readded - m_available.removeAll(i); - }else if (newCount > m_modelCount){ - for (int i=m_modelCount; i<newCount; i++) - m_available << i; - } - m_modelCount = newCount; -} - -QDeclarativeComponent *QSGModelParticle::delegate() const -{ - if (m_model) - return m_model->delegate(); - return 0; -} - -void QSGModelParticle::setDelegate(QDeclarativeComponent *comp) -{ - if (QSGVisualDataModel *dataModel = qobject_cast<QSGVisualDataModel*>(m_model)) - if (comp == dataModel->delegate()) - return; - m_comp = comp; - if (m_model) - m_model->setDelegate(comp); - emit delegateChanged(); -} - -int QSGModelParticle::modelCount() const -{ - if (m_model) - const_cast<QSGModelParticle*>(this)->updateCount();//TODO: Investigate why this doesn't get called properly - return m_modelCount; -} - - -void QSGModelParticle::freeze(QSGItem* item) -{ - m_stasis << item; -} - - -void QSGModelParticle::unfreeze(QSGItem* item) -{ - m_stasis.remove(item); -} - -void QSGModelParticle::initialize(int gIdx, int pIdx) -{ - if (!m_model || !m_model->count()) - return; - if (m_available.isEmpty()) - return; - m_requests << m_system->m_groupData[gIdx]->data[pIdx]; -} - -void QSGModelParticle::processPending() -{//can't create/delete arbitrary items in the render thread - foreach (QSGItem* item, m_deletables){ - item->setVisible(false); - if (m_fade) - item->setOpacity(0.); - m_model->release(item); - m_activeCount--; - } - m_deletables.clear(); - - foreach (QSGParticleData* datum, m_requests){ - if (datum->delegate){ - if (m_stasis.contains(datum->delegate)) - qWarning() << "Current model particles prefers overwrite:false"; - //remove old item from the particle that is dying to make room for this one - m_deletables << datum->delegate; - m_available << datum->modelIndex; - datum->modelIndex = -1; - datum->delegate = 0; - } - - if (!m_available.isEmpty()){ - datum->delegate = m_model->item(m_available.first()); - datum->modelIndex = m_available.first(); - m_available.pop_front(); - QSGModelParticleAttached* mpa = qobject_cast<QSGModelParticleAttached*>(qmlAttachedPropertiesObject<QSGModelParticle>(datum->delegate)); - if (mpa){ - mpa->m_mp = this; - mpa->attach(); - } - datum->delegate->setParentItem(this); - if (m_fade) - datum->delegate->setOpacity(0.0); - datum->delegate->setVisible(false);//Will be set to true when we prepare the next frame - m_activeCount++; - } - } - m_requests.clear(); -} - -void QSGModelParticle::commit(int gIdx, int pIdx) -{ - //No-op unless we start copying the data. -} - -void QSGModelParticle::reset() -{ - QSGParticlePainter::reset(); - //TODO: Cleanup items? - //m_available.clear();//Should this be reset too? - //m_pendingItems.clear();//TODO: Should this be done? If so, Emit signal? -} - - -QSGNode* QSGModelParticle::updatePaintNode(QSGNode* n, UpdatePaintNodeData* d) -{ - //Dummy update just to get painting tick - if (m_pleaseReset){ - m_pleaseReset = false; - reset(); - } - prepareNextFrame(); - - update();//Get called again - if (n) - n->markDirty(QSGNode::DirtyMaterial); - return QSGItem::updatePaintNode(n,d); -} - -void QSGModelParticle::prepareNextFrame() -{ - if (!m_system) - return; - qint64 timeStamp = m_system->systemSync(this); - qreal curT = timeStamp/1000.0; - qreal dt = curT - m_lastT; - m_lastT = curT; - if (!m_activeCount) - return; - - //TODO: Size, better fade? - foreach (const QString &str, m_particles){ - int gIdx = m_system->m_groupIds[str]; - int count = m_system->m_groupData[gIdx]->size(); - - for (int i=0; i<count; i++){ - QSGParticleData* data = m_system->m_groupData[gIdx]->data[i]; - if (!data || !data->delegate) - continue; - qreal t = ((timeStamp/1000.0) - data->t) / data->lifeSpan; - if (m_stasis.contains(data->delegate)) { - data->t += dt;//Stasis effect - continue; - } - if (t >= 1.0){//Usually happens from load - m_available << data->modelIndex; - m_deletables << data->delegate; - data->modelIndex = -1; - data->delegate = 0; - continue; - }else{//Fade - data->delegate->setVisible(true); - if (m_fade){ - qreal o = 1.; - if (t<0.2) - o = t*5; - if (t>0.8) - o = (1-t)*5; - data->delegate->setOpacity(o); - } - } - data->delegate->setX(data->curX() - data->delegate->width()/2 - m_systemOffset.x()); - data->delegate->setY(data->curY() - data->delegate->height()/2 - m_systemOffset.y()); - } - } -} - -QSGModelParticleAttached *QSGModelParticle::qmlAttachedProperties(QObject *object) -{ - return new QSGModelParticleAttached(object); -} - -QT_END_NAMESPACE |