| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
| 3 | |
| 4 | #ifndef FRICTIONAFFECTOR_H |
| 5 | #define FRICTIONAFFECTOR_H |
| 6 | |
| 7 | // |
| 8 | // W A R N I N G |
| 9 | // ------------- |
| 10 | // |
| 11 | // This file is not part of the Qt API. It exists purely as an |
| 12 | // implementation detail. This header file may change from version to |
| 13 | // version without notice, or even be removed. |
| 14 | // |
| 15 | // We mean it. |
| 16 | // |
| 17 | #include "qquickparticleaffector_p.h" |
| 18 | |
| 19 | QT_BEGIN_NAMESPACE |
| 20 | |
| 21 | class Q_QUICKPARTICLES_EXPORT QQuickFrictionAffector : public QQuickParticleAffector |
| 22 | { |
| 23 | Q_OBJECT |
| 24 | Q_PROPERTY(qreal factor READ factor WRITE setFactor NOTIFY factorChanged) |
| 25 | Q_PROPERTY(qreal threshold READ threshold WRITE setThreshold NOTIFY thresholdChanged) |
| 26 | QML_NAMED_ELEMENT(Friction) |
| 27 | QML_ADDED_IN_VERSION(2, 0) |
| 28 | public: |
| 29 | explicit QQuickFrictionAffector(QQuickItem *parent = nullptr); |
| 30 | |
| 31 | qreal factor() const |
| 32 | { |
| 33 | return m_factor; |
| 34 | } |
| 35 | |
| 36 | qreal threshold() const |
| 37 | { |
| 38 | return m_threshold; |
| 39 | } |
| 40 | |
| 41 | protected: |
| 42 | bool affectParticle(QQuickParticleData *d, qreal dt) override; |
| 43 | |
| 44 | Q_SIGNALS: |
| 45 | |
| 46 | void factorChanged(qreal arg); |
| 47 | void thresholdChanged(qreal arg); |
| 48 | |
| 49 | public Q_SLOTS: |
| 50 | |
| 51 | void setFactor(qreal arg) |
| 52 | { |
| 53 | if (m_factor != arg) { |
| 54 | m_factor = arg; |
| 55 | Q_EMIT factorChanged(arg); |
| 56 | } |
| 57 | } |
| 58 | |
| 59 | void setThreshold(qreal arg) |
| 60 | { |
| 61 | if (m_threshold != arg) { |
| 62 | m_threshold = arg; |
| 63 | Q_EMIT thresholdChanged(arg); |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | private: |
| 68 | qreal m_factor; |
| 69 | qreal m_threshold; |
| 70 | }; |
| 71 | |
| 72 | QT_END_NAMESPACE |
| 73 | #endif // FRICTIONAFFECTOR_H |
| 74 |