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Diffstat (limited to 'src/imports/audioengine/qdeclarative_audiolistener_p.cpp')
| -rw-r--r-- | src/imports/audioengine/qdeclarative_audiolistener_p.cpp | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/src/imports/audioengine/qdeclarative_audiolistener_p.cpp b/src/imports/audioengine/qdeclarative_audiolistener_p.cpp new file mode 100644 index 000000000..97c424f97 --- /dev/null +++ b/src/imports/audioengine/qdeclarative_audiolistener_p.cpp @@ -0,0 +1,263 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qdeclarative_audiolistener_p.h" +#include "qdeclarative_audioengine_p.h" +#include "qdebug.h" + +#define DEBUG_AUDIOENGINE + +QT_USE_NAMESPACE + +/*! + \qmlclass AudioListener QDeclarativeAudioListener + \since 5.0 + \brief The AudioListener element allows you to control global listener parameters. + \ingroup qml-multimedia + \inherits Item + + This element is part of the \bold{QtAudioEngine 1.0} module. + + AudioListener will have only one global instance and you can either access it through the + listener property of AudioEngine: + + \qml + import QtQuick 2.0 + import QtAudioEngine 1.0 + + 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 element outside AudioEngine: + + \qml + import QtQuick 2.0 + import QtAudioEngine 1.0 + + 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 case. +*/ + +QDeclarativeAudioListener::QDeclarativeAudioListener(QObject *parent) + : QObject(parent) + , m_engine(0) +{ + m_engine = qobject_cast<QDeclarativeAudioEngine*>(parent); +} + +QDeclarativeAudioListener::~QDeclarativeAudioListener() +{ +} + +/*! + \qmlproperty AudioEngine AudioListener::engine + + This property holds the reference to AudioEngine, must be set only once. +*/ +QDeclarativeAudioEngine* QDeclarativeAudioListener::engine() const +{ + return m_engine; +} + +void QDeclarativeAudioListener::setEngine(QDeclarativeAudioEngine *engine) +{ + setParent(engine); + m_engine = engine; +} + +/*! + \qmlproperty vector3d 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 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 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 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 AudioListener::gain + + This property will modulate all audio output from audio engine elements. +*/ +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(); +} |