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39
40#ifndef KILLAFFECTOR_H
41#define KILLAFFECTOR_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53#include "qquickparticleaffector_p.h"
54
55QT_BEGIN_NAMESPACE
56
57class QQuickAgeAffector : public QQuickParticleAffector
58{
59 Q_OBJECT
60 Q_PROPERTY(int lifeLeft READ lifeLeft WRITE setLifeLeft NOTIFY lifeLeftChanged)
61 Q_PROPERTY(bool advancePosition READ advancePosition WRITE setAdvancePosition NOTIFY advancePositionChanged)
62 QML_NAMED_ELEMENT(Age)
63
64public:
65 explicit QQuickAgeAffector(QQuickItem *parent = 0);
66
67 int lifeLeft() const
68 {
69 return m_lifeLeft;
70 }
71
72 bool advancePosition() const
73 {
74 return m_advancePosition;
75 }
76
77protected:
78 bool affectParticle(QQuickParticleData *d, qreal dt) override;
79
80Q_SIGNALS:
81 void lifeLeftChanged(int arg);
82 void advancePositionChanged(bool arg);
83
84public Q_SLOTS:
85 void setLifeLeft(int arg)
86 {
87 if (m_lifeLeft != arg) {
88 m_lifeLeft = arg;
89 Q_EMIT lifeLeftChanged(arg);
90 }
91 }
92
93 void setAdvancePosition(bool arg)
94 {
95 if (m_advancePosition != arg) {
96 m_advancePosition = arg;
97 Q_EMIT advancePositionChanged(arg);
98 }
99 }
100
101private:
102 int m_lifeLeft;
103 bool m_advancePosition;
104};
105
106QT_END_NAMESPACE
107#endif // KILLAFFECTOR_H
108

source code of qtdeclarative/src/particles/qquickage_p.h