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Diffstat (limited to 'src/declarative/particles/qquickcustomaffector.cpp')
| -rw-r--r-- | src/declarative/particles/qquickcustomaffector.cpp | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/src/declarative/particles/qquickcustomaffector.cpp b/src/declarative/particles/qquickcustomaffector.cpp deleted file mode 100644 index 80e2eaf268..0000000000 --- a/src/declarative/particles/qquickcustomaffector.cpp +++ /dev/null @@ -1,211 +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 "qquickcustomaffector_p.h" -#include <private/qv8engine_p.h> -#include <private/qdeclarativeengine_p.h> -#include <QDeclarativeEngine> -#include <QDebug> -QT_BEGIN_NAMESPACE - -//TODO: Move docs (and inheritence) to real base when docs can propagate. Currently this pretends to be the base class! -/*! - \qmlsignal QtQuick.Particles2::Affector::affectParticles(Array particles, real dt) - - This handler is called when particles are selected to be affected. particles contains - an array of particle objects which can be directly manipulated. - - dt is the time since the last time it was affected. Use dt to normalize - trajectory manipulations to real time. - - Note that JS is slower to execute, so it is not recommended to use this in - high-volume particle systems. -*/ - -/*! - \qmlproperty StochasticDirection QtQuick.Particles2::Affector::position - - Affected particles will have their position set to this direction, - relative to the ParticleSystem. When interpreting directions as points, - imagine it as an arrow with the base at the 0,0 of the ParticleSystem and the - tip at where the specified position will be. -*/ - -/*! - \qmlproperty StochasticDirection QtQuick.Particles2::Affector::speed - - Affected particles will have their speed set to this direction. -*/ - - -/*! - \qmlproperty StochasticDirection QtQuick.Particles2::Affector::acceleration - - Affected particles will have their acceleration set to this direction. -*/ - - -/*! - \qmlproperty bool QtQuick.Particles2::Affector::relative - - Whether the affected particles have their existing position/speed/acceleration added - to the new one. - - Default is true. -*/ -QQuickCustomAffector::QQuickCustomAffector(QQuickItem *parent) : - QQuickParticleAffector(parent) - , m_position(&m_nullVector) - , m_speed(&m_nullVector) - , m_acceleration(&m_nullVector) - , m_relative(true) -{ -} - -bool QQuickCustomAffector::isAffectConnected() -{ - static int idx = QObjectPrivate::get(this)->signalIndex("affectParticles(QDeclarativeV8Handle,qreal)"); - return QObjectPrivate::get(this)->isSignalConnected(idx); -} - -void QQuickCustomAffector::affectSystem(qreal dt) -{ - if (!isAffectConnected()) { - QQuickParticleAffector::affectSystem(dt); - return; - } - if (!m_enabled) - return; - updateOffsets(); - - QList<QQuickParticleData*> toAffect; - foreach (QQuickParticleGroupData* gd, m_system->groupData) - if (activeGroup(m_system->groupData.key(gd))) - foreach (QQuickParticleData* d, gd->data) - if (shouldAffect(d)) - toAffect << d; - - if (toAffect.isEmpty()) - return; - - if (m_onceOff) - dt = 1.0; - - v8::HandleScope handle_scope; - v8::Context::Scope scope(QDeclarativeEnginePrivate::getV8Engine(qmlEngine(this))->context()); - v8::Handle<v8::Array> array = v8::Array::New(toAffect.size()); - for (int i=0; i<toAffect.size(); i++) - array->Set(i, toAffect[i]->v8Value().toHandle()); - - if (dt >= simulationCutoff || dt <= simulationDelta) { - affectProperties(toAffect, dt); - emit affectParticles(QDeclarativeV8Handle::fromHandle(array), dt); - } else { - int realTime = m_system->timeInt; - m_system->timeInt -= dt * 1000.0; - while (dt > simulationDelta) { - m_system->timeInt += simulationDelta * 1000.0; - dt -= simulationDelta; - affectProperties(toAffect, simulationDelta); - emit affectParticles(QDeclarativeV8Handle::fromHandle(array), simulationDelta); - } - m_system->timeInt = realTime; - if (dt > 0.0) { - affectProperties(toAffect, dt); - emit affectParticles(QDeclarativeV8Handle::fromHandle(array), dt); - } - } - - foreach (QQuickParticleData* d, toAffect) - if (d->update == 1.0) - postAffect(d); -} - -bool QQuickCustomAffector::affectParticle(QQuickParticleData *d, qreal dt) -{ - //This does the property based affecting, called by superclass if signal isn't hooked up. - bool changed = false; - QPointF curPos(d->curX(), d->curY()); - - if (m_acceleration != &m_nullVector){ - QPointF pos = m_acceleration->sample(curPos); - if (m_relative) { - pos *= dt; - pos += QPointF(d->curAX(), d->curAY()); - } - d->setInstantaneousAX(pos.x()); - d->setInstantaneousAY(pos.y()); - changed = true; - } - - if (m_speed != &m_nullVector){ - QPointF pos = m_speed->sample(curPos); - if (m_relative) { - pos *= dt; - pos += QPointF(d->curVX(), d->curVY()); - } - d->setInstantaneousVX(pos.x()); - d->setInstantaneousVY(pos.y()); - changed = true; - } - - if (m_position != &m_nullVector){ - QPointF pos = m_position->sample(curPos); - if (m_relative) { - pos *= dt; - pos += curPos; - } - d->setInstantaneousX(pos.x()); - d->setInstantaneousY(pos.y()); - changed = true; - } - - return changed; -} - -void QQuickCustomAffector::affectProperties(const QList<QQuickParticleData*> particles, qreal dt) -{ - foreach (QQuickParticleData* d, particles) - if ( affectParticle(d, dt) ) - d->update = 1.0; -} - -QT_END_NAMESPACE |