1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the plugins of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #ifndef QDECLARATIVEATTENUATIONMODEL_P_H 41 #define QDECLARATIVEATTENUATIONMODEL_P_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 54 #include <QtQml/qqml.h> 55 #include <QVector3D> 56 57 QT_BEGIN_NAMESPACE 58 59 class QDeclarativeAudioEngine; 60 61 class QDeclarativeAttenuationModel : public QObject 62 { 63 Q_OBJECT 64 Q_PROPERTY(QString name READ name WRITE setName) 65 66 public: 67 QDeclarativeAttenuationModel(QObject *parent = 0); 68 ~QDeclarativeAttenuationModel(); 69 70 QString name() const; 71 void setName(const QString& name); 72 73 virtual qreal calculateGain(const QVector3D &listenerPosition, const QVector3D &sourcePosition) const = 0; 74 75 virtual void setEngine(QDeclarativeAudioEngine *engine); 76 77 protected: 78 QString m_name; 79 QDeclarativeAudioEngine *m_engine; 80 81 private: 82 Q_DISABLE_COPY(QDeclarativeAttenuationModel); 83 }; 84 85 class QDeclarativeAttenuationModelLinear : public QDeclarativeAttenuationModel 86 { 87 Q_OBJECT 88 Q_PROPERTY(qreal start READ startDistance WRITE setStartDistance) 89 Q_PROPERTY(qreal end READ endDistance WRITE setEndDistance) 90 91 public: 92 QDeclarativeAttenuationModelLinear(QObject *parent = 0); 93 94 qreal startDistance() const; 95 void setStartDistance(qreal startDist); 96 97 qreal endDistance() const; 98 void setEndDistance(qreal endDist); 99 100 qreal calculateGain(const QVector3D &listenerPosition, const QVector3D &sourcePosition) const override; 101 102 void setEngine(QDeclarativeAudioEngine *engine) override; 103 104 private: 105 Q_DISABLE_COPY(QDeclarativeAttenuationModelLinear); 106 qreal m_start; 107 qreal m_end; 108 }; 109 110 class QDeclarativeAttenuationModelInverse : public QDeclarativeAttenuationModel 111 { 112 Q_OBJECT 113 Q_PROPERTY(qreal start READ referenceDistance WRITE setReferenceDistance) 114 Q_PROPERTY(qreal end READ maxDistance WRITE setMaxDistance) 115 Q_PROPERTY(qreal rolloff READ rolloffFactor WRITE setRolloffFactor) 116 117 public: 118 QDeclarativeAttenuationModelInverse(QObject *parent = 0); 119 120 qreal referenceDistance() const; 121 void setReferenceDistance(qreal referenceDistance); 122 123 qreal maxDistance() const; 124 void setMaxDistance(qreal maxDistance); 125 126 qreal rolloffFactor() const; 127 void setRolloffFactor(qreal rolloffFactor); 128 129 qreal calculateGain(const QVector3D &listenerPosition, const QVector3D &sourcePosition) const override; 130 131 void setEngine(QDeclarativeAudioEngine *engine) override; 132 133 private: 134 Q_DISABLE_COPY(QDeclarativeAttenuationModelInverse); 135 qreal m_ref; 136 qreal m_max; 137 qreal m_rolloff; 138 }; 139 140 QT_END_NAMESPACE 141 142 #endif 143