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qsgparticleemitter_p.h 9.89 KiB
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/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the Declarative module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this
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** file. Please review the following information to ensure the GNU Lesser
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** General Public License version 2.1 requirements will be met:
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License version 3.0 as published by the Free Software Foundation
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** and appearing in the file LICENSE.GPL included in the packaging of this
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** file. Please review the following information to ensure the GNU General
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** Public License version 3.0 requirements will be met:
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** Other Usage
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** Alternatively, this file may be used in accordance with the terms and
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** conditions contained in a signed written agreement between you and Nokia.
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef PARTICLEEMITTER_H
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#define PARTICLEEMITTER_H
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#include <QSGItem>
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#include <QDebug>
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#include "qsgparticlesystem_p.h"
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#include "qsgparticleextruder_p.h"
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#include "qsgstochasticdirection_p.h"
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#include <QList>
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#include <QPair>
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#include <QPointF>
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QT_BEGIN_HEADER
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QT_BEGIN_NAMESPACE
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QT_MODULE(Declarative)
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class QSGParticleEmitter : public QSGItem
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{
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    Q_OBJECT
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    Q_PROPERTY(QSGParticleSystem* system READ system WRITE setSystem NOTIFY systemChanged)
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    Q_PROPERTY(QString particle READ particle WRITE setParticle NOTIFY particleChanged)
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    Q_PROPERTY(QSGParticleExtruder* shape READ extruder WRITE setExtruder NOTIFY extruderChanged)
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    Q_PROPERTY(bool emitting READ emitting WRITE setEmitting NOTIFY emittingChanged)
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    Q_PROPERTY(int startTime READ startTime WRITE setStartTime NOTIFY startTimeChanged)
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    Q_PROPERTY(bool noCap READ overwrite WRITE setOverWrite NOTIFY overwriteChanged)
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    Q_PROPERTY(qreal emitRate READ particlesPerSecond WRITE setParticlesPerSecond NOTIFY particlesPerSecondChanged)
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Q_PROPERTY(int lifeSpan READ particleDuration WRITE setParticleDuration NOTIFY particleDurationChanged) Q_PROPERTY(int lifeSpanVariation READ particleDurationVariation WRITE setParticleDurationVariation NOTIFY particleDurationVariationChanged) Q_PROPERTY(int emitCap READ maxParticleCount WRITE setMaxParticleCount NOTIFY maxParticleCountChanged) Q_PROPERTY(qreal size READ particleSize WRITE setParticleSize NOTIFY particleSizeChanged) Q_PROPERTY(qreal endSize READ particleEndSize WRITE setParticleEndSize NOTIFY particleEndSizeChanged) Q_PROPERTY(qreal sizeVariation READ particleSizeVariation WRITE setParticleSizeVariation NOTIFY particleSizeVariationChanged) Q_PROPERTY(QSGStochasticDirection *speed READ speed WRITE setSpeed NOTIFY speedChanged) Q_PROPERTY(QSGStochasticDirection *acceleration READ acceleration WRITE setAcceleration NOTIFY accelerationChanged) Q_PROPERTY(qreal speedFromMovement READ speedFromMovement WRITE setSpeedFromMovement NOTIFY speedFromMovementChanged) public: explicit QSGParticleEmitter(QSGItem *parent = 0); virtual ~QSGParticleEmitter(); virtual void emitWindow(int timeStamp); bool emitting() const { return m_emitting; } qreal particlesPerSecond() const { return m_particlesPerSecond; } int particleDuration() const { return m_particleDuration; } QSGParticleSystem* system() const { return m_system; } QString particle() const { return m_particle; } int particleDurationVariation() const { return m_particleDurationVariation; } qreal speedFromMovement() const { return m_speed_from_movement; } void setSpeedFromMovement(qreal s); virtual void componentComplete(); signals: void particlesPerSecondChanged(qreal); void particleDurationChanged(int); void emittingChanged(bool); void systemChanged(QSGParticleSystem* arg); void particleChanged(QString arg); void particleDurationVariationChanged(int arg); void extruderChanged(QSGParticleExtruder* arg); void particleSizeChanged(qreal arg); void particleEndSizeChanged(qreal arg); void particleSizeVariationChanged(qreal arg); void speedChanged(QSGStochasticDirection * arg);
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void accelerationChanged(QSGStochasticDirection * arg); void maxParticleCountChanged(int arg); void particleCountChanged(); void speedFromMovementChanged(); void startTimeChanged(int arg); void overwriteChanged(bool arg); public slots: void pulse(qreal seconds); void burst(int num); void burst(int num, qreal x, qreal y); void setEmitting(bool arg); void setParticlesPerSecond(qreal arg) { if (m_particlesPerSecond != arg) { m_particlesPerSecond = arg; emit particlesPerSecondChanged(arg); } } void setParticleDuration(int arg) { if (m_particleDuration != arg) { m_particleDuration = arg; emit particleDurationChanged(arg); } } void setSystem(QSGParticleSystem* arg) { if (m_system != arg) { m_system = arg; m_system->registerParticleEmitter(this); emit systemChanged(arg); } } void setParticle(QString arg) { if (m_particle != arg) { m_particle = arg; emit particleChanged(arg); } } void setParticleDurationVariation(int arg) { if (m_particleDurationVariation != arg) { m_particleDurationVariation = arg; emit particleDurationVariationChanged(arg); } } void setExtruder(QSGParticleExtruder* arg) { if (m_extruder != arg) { m_extruder = arg; emit extruderChanged(arg); } } void setParticleSize(qreal arg) { if (m_particleSize != arg) {
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m_particleSize = arg; emit particleSizeChanged(arg); } } void setParticleEndSize(qreal arg) { if (m_particleEndSize != arg) { m_particleEndSize = arg; emit particleEndSizeChanged(arg); } } void setParticleSizeVariation(qreal arg) { if (m_particleSizeVariation != arg) { m_particleSizeVariation = arg; emit particleSizeVariationChanged(arg); } } void setSpeed(QSGStochasticDirection * arg) { if (m_speed != arg) { m_speed = arg; emit speedChanged(arg); } } void setAcceleration(QSGStochasticDirection * arg) { if (m_acceleration != arg) { m_acceleration = arg; emit accelerationChanged(arg); } } void setMaxParticleCount(int arg); void setStartTime(int arg) { if (m_startTime != arg) { m_startTime = arg; emit startTimeChanged(arg); } } void setOverWrite(bool arg) { if (m_overwrite != arg) { m_overwrite = arg; emit overwriteChanged(arg); } } public: int particleCount() const; virtual void reset(){;} QSGParticleExtruder* extruder() const { return m_extruder; } qreal particleSize() const { return m_particleSize; } qreal particleEndSize() const
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{ return m_particleEndSize; } qreal particleSizeVariation() const { return m_particleSizeVariation; } QSGStochasticDirection * speed() const { return m_speed; } QSGStochasticDirection * acceleration() const { return m_acceleration; } int maxParticleCount() const { return m_maxParticleCount; } int startTime() const { return m_startTime; } bool overwrite() const { return m_overwrite; } protected: qreal m_particlesPerSecond; int m_particleDuration; int m_particleDurationVariation; bool m_emitting; QSGParticleSystem* m_system; QString m_particle; QSGParticleExtruder* m_extruder; QSGParticleExtruder* m_defaultExtruder; QSGParticleExtruder* effectiveExtruder(); QSGStochasticDirection * m_speed; QSGStochasticDirection * m_acceleration; qreal m_particleSize; qreal m_particleEndSize; qreal m_particleSizeVariation; qreal m_speedFromMovement; int m_startTime; bool m_overwrite; int m_burstLeft;//TODO: Rename to pulse QList<QPair<int, QPointF > > m_burstQueue; int m_maxParticleCount; //Used in default implementation, but might be useful qreal m_speed_from_movement; int m_particle_count; bool m_reset_last; qreal m_last_timestamp; qreal m_last_emission; QPointF m_last_emitter; QPointF m_last_last_emitter; QPointF m_last_last_last_emitter;
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private: QSGStochasticDirection m_nullVector; }; QT_END_NAMESPACE QT_END_HEADER #endif // PARTICLEEMITTER_H