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42 #ifndef FOLLOWEMITTER_H
43 #define FOLLOWEMITTER_H
44 #include "qsgparticleemitter_p.h"
45 #include "qsgparticleaffector_p.h"
51 QT_MODULE(Declarative)
54 class QSGTrailEmitter : public QSGParticleEmitter
57 Q_PROPERTY(QString follow READ follow WRITE setFollow NOTIFY followChanged)
58 Q_PROPERTY(int emitRatePerParticle READ particlesPerParticlePerSecond WRITE setParticlesPerParticlePerSecond NOTIFY particlesPerParticlePerSecondChanged)
60 Q_PROPERTY(QSGParticleExtruder* emitShape READ emissonShape WRITE setEmissionShape NOTIFY emissionShapeChanged)
61 Q_PROPERTY(qreal emitHeight READ emitterYVariation WRITE setEmitterYVariation NOTIFY emitterYVariationChanged)
62 Q_PROPERTY(qreal emitWidth READ emitterXVariation WRITE setEmitterXVariation NOTIFY emitterXVariationChanged)
67 ParticleSize = -2//Anything less than 0 will do
69 explicit QSGTrailEmitter(QQuickItem *parent = 0);
70 virtual void emitWindow(int timeStamp);
73 int particlesPerParticlePerSecond() const
75 return m_particlesPerParticlePerSecond;
78 qreal emitterXVariation() const
80 return m_emitterXVariation;
83 qreal emitterYVariation() const
85 return m_emitterYVariation;
88 QString follow() const
93 QSGParticleExtruder* emissonShape() const
95 return m_emissionExtruder;
99 void emitFollowParticles(QDeclarativeV8Handle particles, QDeclarativeV8Handle followed);
101 void particlesPerParticlePerSecondChanged(int arg);
103 void emitterXVariationChanged(qreal arg);
105 void emitterYVariationChanged(qreal arg);
107 void followChanged(QString arg);
109 void emissionShapeChanged(QSGParticleExtruder* arg);
113 void setParticlesPerParticlePerSecond(int arg)
115 if (m_particlesPerParticlePerSecond != arg) {
116 m_particlesPerParticlePerSecond = arg;
117 emit particlesPerParticlePerSecondChanged(arg);
120 void setEmitterXVariation(qreal arg)
122 if (m_emitterXVariation != arg) {
123 m_emitterXVariation = arg;
124 emit emitterXVariationChanged(arg);
128 void setEmitterYVariation(qreal arg)
130 if (m_emitterYVariation != arg) {
131 m_emitterYVariation = arg;
132 emit emitterYVariationChanged(arg);
136 void setFollow(QString arg)
138 if (m_follow != arg) {
140 emit followChanged(arg);
144 void setEmissionShape(QSGParticleExtruder* arg)
146 if (m_emissionExtruder != arg) {
147 m_emissionExtruder = arg;
148 emit emissionShapeChanged(arg);
153 void recalcParticlesPerSecond();
156 QSet<QSGParticleData*> m_pending;
157 QVector<qreal> m_lastEmission;
158 int m_particlesPerParticlePerSecond;
159 qreal m_lastTimeStamp;
160 qreal m_emitterXVariation;
161 qreal m_emitterYVariation;
164 QSGParticleExtruder* m_emissionExtruder;
165 QSGParticleExtruder* m_defaultEmissionExtruder;
166 bool isEmitFollowConnected();
171 #endif // FOLLOWEMITTER_H