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| |
| #include "qdeclarative_audiolistener_p.h" |
| #include "qdeclarative_audioengine_p.h" |
| #include "qdebug.h" |
| |
| #define DEBUG_AUDIOENGINE |
| |
| QT_USE_NAMESPACE |
| |
| /*! |
| \qmltype AudioListener |
| \instantiates QDeclarativeAudioListener |
| \since 5.0 |
| \brief Control global listener parameters. |
| \inqmlmodule QtAudioEngine |
| \ingroup multimedia_audioengine |
| \inherits Item |
| \preliminary |
| \deprecated |
| |
| AudioListener will have only one global instance and you can either access it through the |
| listener property of AudioEngine: |
| |
| \qml |
| Rectangle { |
| color:"white" |
| width: 300 |
| height: 500 |
| |
| AudioEngine { |
| id:audioengine |
| listener.up:"0,0,1" |
| listener.velocity:"0,0,0" |
| listener.direction:"0,1,0" |
| listener.position:Qt.vector3d(observer.x, observer.y, 0); |
| } |
| |
| Item { |
| id: observer |
| x: 10 + observer.percent * 100 |
| y: 20 + observer.percent * 80 |
| property real percent: 0 |
| SequentialAnimation on percent { |
| loops: Animation.Infinite |
| running: true |
| NumberAnimation { |
| duration: 8000 |
| from: 0 |
| to: 1 |
| } |
| } |
| } |
| } |
| \endqml |
| |
| or alternatively, by defining an AudioListener outside AudioEngine: |
| |
| \qml |
| Rectangle { |
| color:"white" |
| width: 300 |
| height: 500 |
| |
| AudioEngine { |
| id:audioengine |
| listener.up:"0,0,1" |
| listener.velocity:"0,0,0" |
| listener.direction:"0,1,0" |
| } |
| |
| AudioListener { |
| engine:audioengine |
| position: Qt.vector3d(observer.x, observer.y, 0); |
| } |
| |
| Item { |
| id: observer |
| x: 10 + observer.percent * 100 |
| y: 20 + observer.percent * 80 |
| property real percent: 0 |
| SequentialAnimation on percent { |
| loops: Animation.Infinite |
| running: true |
| NumberAnimation { |
| duration: 8000 |
| from: 0 |
| to: 1 |
| } |
| } |
| } |
| } |
| \endqml |
| |
| This separate AudioListener definition is allowed to make QML bindings easier in some cases. |
| */ |
| |
| QDeclarativeAudioListener::QDeclarativeAudioListener(QObject *parent) |
| : QObject(parent) |
| , m_engine(0) |
| { |
| m_engine = qobject_cast<QDeclarativeAudioEngine*>(parent); |
| } |
| |
| QDeclarativeAudioListener::~QDeclarativeAudioListener() |
| { |
| } |
| |
| /*! |
| \qmlproperty QtAudioEngine::AudioEngine QtAudioEngine::AudioListener::engine |
| |
| This property holds the reference to AudioEngine, and must only be set once. |
| */ |
| QDeclarativeAudioEngine* QDeclarativeAudioListener::engine() const |
| { |
| return m_engine; |
| } |
| |
| void QDeclarativeAudioListener::setEngine(QDeclarativeAudioEngine *engine) |
| { |
| setParent(engine); |
| m_engine = engine; |
| } |
| |
| /*! |
| \qmlproperty vector3d QtAudioEngine::AudioListener::position |
| |
| This property holds the 3D position of the listener. |
| */ |
| QVector3D QDeclarativeAudioListener::position() const |
| { |
| return m_engine->engine()->listenerPosition(); |
| } |
| |
| void QDeclarativeAudioListener::setPosition(const QVector3D &position) |
| { |
| #ifdef DEBUG_AUDIOENGINE |
| qDebug() << "QDeclarativeAudioListener::setPosition"; |
| #endif |
| m_engine->engine()->setListenerPosition(position); |
| emit positionChanged(); |
| } |
| |
| /*! |
| \qmlproperty vector3d QtAudioEngine::AudioListener::direction |
| |
| This property holds the normalized 3D direction vector of the listener. |
| */ |
| QVector3D QDeclarativeAudioListener::direction() const |
| { |
| return m_engine->engine()->listenerDirection(); |
| } |
| |
| void QDeclarativeAudioListener::setDirection(const QVector3D &direction) |
| { |
| #ifdef DEBUG_AUDIOENGINE |
| qDebug() << "QDeclarativeAudioListener::setDirection"; |
| #endif |
| m_engine->engine()->setListenerDirection(direction); |
| emit directionChanged(); |
| } |
| |
| /*! |
| \qmlproperty vector3d QtAudioEngine::AudioListener::velocity |
| |
| This property holds the 3D velocity vector of the listener. |
| */ |
| QVector3D QDeclarativeAudioListener::velocity() const |
| { |
| return m_engine->engine()->listenerVelocity(); |
| } |
| |
| void QDeclarativeAudioListener::setVelocity(const QVector3D &velocity) |
| { |
| #ifdef DEBUG_AUDIOENGINE |
| qDebug() << "QDeclarativeAudioListener::setVelocity"; |
| #endif |
| m_engine->engine()->setListenerVelocity(velocity); |
| emit velocityChanged(); |
| } |
| |
| /*! |
| \qmlproperty vector3d QtAudioEngine::AudioListener::up |
| |
| This property holds the normalized 3D up vector of the listener. |
| */ |
| QVector3D QDeclarativeAudioListener::up() const |
| { |
| return m_engine->engine()->listenerUp(); |
| } |
| |
| void QDeclarativeAudioListener::setUp(const QVector3D &up) |
| { |
| #ifdef DEBUG_AUDIOENGINE |
| qDebug() << "QDeclarativeAudioListener::setUp"; |
| #endif |
| m_engine->engine()->setListenerUp(up); |
| emit upChanged(); |
| } |
| |
| /*! |
| \qmlproperty real QtAudioEngine::AudioListener::gain |
| |
| This property will modulate all audio output from audio engine instances. |
| */ |
| qreal QDeclarativeAudioListener::gain() const |
| { |
| return m_engine->engine()->listenerGain(); |
| } |
| |
| void QDeclarativeAudioListener::setGain(qreal gain) |
| { |
| #ifdef DEBUG_AUDIOENGINE |
| qDebug() << "QDeclarativeAudioListener::setGain"; |
| #endif |
| m_engine->engine()->setListenerGain(gain); |
| emit gainChanged(); |
| } |