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Diffstat (limited to 'src/declarative/particles/qsgcustomemitter.cpp')
| -rw-r--r-- | src/declarative/particles/qsgcustomemitter.cpp | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/src/declarative/particles/qsgcustomemitter.cpp b/src/declarative/particles/qsgcustomemitter.cpp deleted file mode 100644 index 6b40f179d0..0000000000 --- a/src/declarative/particles/qsgcustomemitter.cpp +++ /dev/null @@ -1,188 +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 "qsgcustomemitter_p.h" -#include "qsgparticlesystem_p.h" -QT_BEGIN_NAMESPACE -/*! - \qmlclass CustomEmitter QSGCustomEmitter - \inqmlmodule QtQuick.Particles 2 - \inherits Emitter - \brief The Custom emitter allows you to modify particles as they are emitted - -*/ - -//TODO: Document particle 'type' -/*! - \qmlsignal CustomEmitter::emitting(particle) - - This handler is called when a particle is emitted. You can modify particle - attributes from within the handler. -*/ - -QSGCustomEmitter::QSGCustomEmitter(QSGItem* parent) - : QSGParticleEmitter(parent) - , m_particle_count(0) - , m_reset_last(true) - , m_last_timestamp(0) - , m_last_emission(0) -{ -} - -void QSGCustomEmitter::reset() -{ - m_reset_last = true; -} - -void QSGCustomEmitter::emitWindow(int timeStamp) -{ - if (m_system == 0) - return; - if ((!m_emitting || !m_particlesPerSecond)&& !m_burstLeft && m_burstQueue.isEmpty()){ - m_reset_last = true; - return; - } - - if (m_reset_last) { - m_last_emitter = m_last_last_emitter = QPointF(x(), y()); - m_last_timestamp = timeStamp/1000.; - m_last_emission = m_last_timestamp; - m_reset_last = false; - } - - if (m_burstLeft){ - m_burstLeft -= timeStamp - m_last_timestamp * 1000.; - if (m_burstLeft < 0){ - if (!m_emitting) - timeStamp += m_burstLeft; - m_burstLeft = 0; - } - } - - qreal time = timeStamp / 1000.; - - qreal particleRatio = 1. / m_particlesPerSecond; - qreal pt = m_last_emission; - - qreal opt = pt; // original particle time - qreal dt = time - m_last_timestamp; // timestamp delta... - if (!dt) - dt = 0.000001; - - // emitter difference since last... - qreal dex = (x() - m_last_emitter.x()); - qreal dey = (y() - m_last_emitter.y()); - - qreal sizeAtEnd = m_particleEndSize >= 0 ? m_particleEndSize : m_particleSize; - qreal emitter_x_offset = m_last_emitter.x() - x(); - qreal emitter_y_offset = m_last_emitter.y() - y(); - if (!m_burstQueue.isEmpty() && !m_burstLeft && !m_emitting)//'outside time' emissions only - pt = time; - while (pt < time || !m_burstQueue.isEmpty()) { - //int pos = m_last_particle % m_particle_count; - QSGParticleData* datum = m_system->newDatum(m_system->m_groupIds[m_particle]); - if (datum){//actually emit(otherwise we've been asked to skip this one) - datum->e = this;//###useful? - qreal t = 1 - (pt - opt) / dt; - - - // Particle timestamp - datum->t = pt; - datum->lifeSpan = //TODO:Promote to base class? - (m_particleDuration - + ((rand() % ((m_particleDurationVariation*2) + 1)) - m_particleDurationVariation)) - / 1000.0; - - // Particle position - QRectF boundsRect; - if (!m_burstQueue.isEmpty()){ - boundsRect = QRectF(m_burstQueue.first().second.x() - x(), m_burstQueue.first().second.y() - y(), - width(), height()); - } else { - boundsRect = QRectF(emitter_x_offset + dex * (pt - opt) / dt, emitter_y_offset + dey * (pt - opt) / dt - , width(), height()); - } - QPointF newPos = effectiveExtruder()->extrude(boundsRect); - datum->x = newPos.x(); - datum->y = newPos.y(); - - // Particle speed - const QPointF &speed = m_speed->sample(newPos); - datum->vx = speed.x(); - datum->vy = speed.y(); - - // Particle acceleration - const QPointF &accel = m_acceleration->sample(newPos); - datum->ax = accel.x(); - datum->ay = accel.y(); - - // Particle size - float sizeVariation = -m_particleSizeVariation - + rand() / float(RAND_MAX) * m_particleSizeVariation * 2; - - float size = qMax((qreal)0.0 , m_particleSize + sizeVariation); - float endSize = qMax((qreal)0.0 , sizeAtEnd + sizeVariation); - - datum->size = size; - datum->endSize = endSize; - - emitParticle(datum->v8Value());//A chance for arbitrary JS changes - - m_system->emitParticle(datum); - } - if (m_burstQueue.isEmpty()){ - pt += particleRatio; - }else{ - m_burstQueue.first().first--; - if (m_burstQueue.first().first <= 0) - m_burstQueue.pop_front(); - } - } - m_last_emission = pt; - - m_last_last_last_emitter = m_last_last_emitter; - m_last_last_emitter = m_last_emitter; - m_last_emitter = QPointF(x(), y()); - m_last_timestamp = time; -} - - -QT_END_NAMESPACE |