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| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
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| ** |
| ** This file is part of the QtQuick module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
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| ** Alternatively, this file may be used under the terms of the GNU |
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| ****************************************************************************/ |
| |
| #ifndef CUSTOMAFFECTOR_H |
| #define CUSTOMAFFECTOR_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <QObject> |
| #include <QtQml/qqml.h> |
| #include "qquickparticlesystem_p.h" |
| #include "qquickparticleextruder_p.h" |
| #include "qquickparticleaffector_p.h" |
| #include "qquickdirection_p.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QQuickCustomAffector : public QQuickParticleAffector |
| { |
| Q_OBJECT |
| Q_PROPERTY(bool relative READ relative WRITE setRelative NOTIFY relativeChanged) |
| Q_PROPERTY(QQuickDirection *position READ position WRITE setPosition NOTIFY positionChanged RESET positionReset) |
| Q_PROPERTY(QQuickDirection *velocity READ velocity WRITE setVelocity NOTIFY velocityChanged RESET velocityReset) |
| Q_PROPERTY(QQuickDirection *acceleration READ acceleration WRITE setAcceleration NOTIFY accelerationChanged RESET accelerationReset) |
| QML_NAMED_ELEMENT(Affector) |
| |
| public: |
| explicit QQuickCustomAffector(QQuickItem *parent = 0); |
| void affectSystem(qreal dt) override; |
| |
| QQuickDirection * position() const |
| { |
| return m_position; |
| } |
| |
| QQuickDirection * velocity() const |
| { |
| return m_velocity; |
| } |
| |
| QQuickDirection * acceleration() const |
| { |
| return m_acceleration; |
| } |
| |
| void positionReset() |
| { |
| m_position = &m_nullVector; |
| } |
| |
| void velocityReset() |
| { |
| m_velocity = &m_nullVector; |
| } |
| |
| void accelerationReset() |
| { |
| m_acceleration = &m_nullVector; |
| } |
| |
| bool relative() const |
| { |
| return m_relative; |
| } |
| |
| |
| Q_SIGNALS: |
| void affectParticles(const QJSValue &particles, qreal dt); |
| |
| void positionChanged(QQuickDirection * arg); |
| |
| void velocityChanged(QQuickDirection * arg); |
| |
| void accelerationChanged(QQuickDirection * arg); |
| |
| void relativeChanged(bool arg); |
| |
| public Q_SLOTS: |
| void setPosition(QQuickDirection * arg) |
| { |
| if (m_position != arg) { |
| m_position = arg; |
| Q_EMIT positionChanged(arg); |
| } |
| } |
| |
| void setVelocity(QQuickDirection * arg) |
| { |
| if (m_velocity != arg) { |
| m_velocity = arg; |
| Q_EMIT velocityChanged(arg); |
| } |
| } |
| |
| void setAcceleration(QQuickDirection * arg) |
| { |
| if (m_acceleration != arg) { |
| m_acceleration = arg; |
| Q_EMIT accelerationChanged(arg); |
| } |
| } |
| |
| void setRelative(bool arg) |
| { |
| if (m_relative != arg) { |
| m_relative = arg; |
| Q_EMIT relativeChanged(arg); |
| } |
| } |
| |
| protected: |
| bool isAffectConnected(); |
| bool affectParticle(QQuickParticleData *d, qreal dt) override; |
| |
| private: |
| void affectProperties(const QList<QQuickParticleData*> &particles, qreal dt); |
| QQuickDirection * m_position; |
| QQuickDirection * m_velocity; |
| QQuickDirection * m_acceleration; |
| |
| QQuickDirection m_nullVector; |
| bool m_relative; |
| }; |
| |
| QT_END_NAMESPACE |
| #endif // CUSTOMAFFECTOR_H |