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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QDECLARATIVEAUDIOENGINE_P_H
#define QDECLARATIVEAUDIOENGINE_P_H
#include <QtQml/qqml.h>
#include <QtQml/qqmlcomponent.h>
#include <QtQml/qqmlpropertymap.h>
#include <QtCore/QMap>
#include <QtCore/QList>
#include <QTimer>
#include "qaudioengine_p.h"
QT_BEGIN_NAMESPACE
class QDeclarativeSoundInstance;
class QDeclarativeAudioListener;
class QDeclarativeAudioCategory;
class QDeclarativeAudioSample;
class QDeclarativeSound;
class QDeclarativePlayVariation;
class QAudioCategory;
class QDeclarativeAttenuationModel;
class QSoundInstance;
class QDeclarativeAudioEngine : public QObject, public QQmlParserStatus
{
Q_OBJECT
Q_INTERFACES(QQmlParserStatus)
Q_PROPERTY(QQmlListProperty<QObject> bank READ bank CONSTANT)
Q_PROPERTY(QObject* categories READ categories CONSTANT)
Q_PROPERTY(QObject* samples READ samples CONSTANT)
Q_PROPERTY(QObject* sounds READ sounds CONSTANT)
Q_PROPERTY(bool loading READ isLoading NOTIFY isLoadingChanged)
Q_PROPERTY(int liveInstances READ liveInstanceCount NOTIFY liveInstanceCountChanged)
Q_PROPERTY(QDeclarativeAudioListener* listener READ listener CONSTANT)
Q_PROPERTY(qreal dopplerFactor READ dopplerFactor WRITE setDopplerFactor)
Q_PROPERTY(qreal speedOfSound READ speedOfSound WRITE setSpeedOfSound)
Q_CLASSINFO("DefaultProperty", "bank")
public:
QDeclarativeAudioEngine(QObject *parent = 0);
~QDeclarativeAudioEngine();
void classBegin();
void componentComplete();
//This is used for tracking all objects declared inside AudioEngine
//see appendFunction
QQmlListProperty<QObject> bank();
QObject* categories();
QObject* samples();
QObject* sounds();
QDeclarativeAudioListener* listener() const;
qreal dopplerFactor() const;
void setDopplerFactor(qreal dopplerFactor);
qreal speedOfSound() const;
void setSpeedOfSound(qreal speedOfSound);
bool isLoading() const;
int liveInstanceCount() const;
//for child elements
bool isReady() const;
QAudioEngine* engine() const;
//if managed, then the instance should start playing immediately and will be collected
//when the playback finished
QDeclarativeSoundInstance* newDeclarativeSoundInstance(bool managed);
//internal sound instance is different from declarativeSoundInstance
//declarative instance is more like a soundInstance helper which can
//switch to different sound instance conveniently while sound instance
//must be mapped to one sound definition.
QSoundInstance* newSoundInstance(const QString &name);
void releaseSoundInstance(QSoundInstance* instance);
Q_SIGNALS:
void ready();
void liveInstanceCountChanged();
void isLoadingChanged();
void finishedLoading();
private Q_SLOTS:
void updateSoundInstances();
void handleLoadingChanged();
private:
Q_DISABLE_COPY(QDeclarativeAudioEngine);
bool m_complete;
//see bank()
static void appendFunction(QQmlListProperty<QObject> *property, QObject *value);
QDeclarativeAudioListener *m_listener;
QDeclarativeAudioCategory* m_defaultCategory;
QQmlPropertyMap m_categories;
QQmlPropertyMap m_samples;
QQmlPropertyMap m_sounds;
//Use strong type here since no need to for AttenuationModel to be accessible directly by user
//after config stage
QDeclarativeAttenuationModel *m_defaultAttenuationModel;
QMap<QString, QDeclarativeAttenuationModel*> m_attenuationModels;
QAudioEngine *m_audioEngine;
//for execution stage management
QList<QSoundInstance*> m_soundInstancePool;
QList<QSoundInstance*> m_activeSoundInstances;
QTimer m_updateTimer;
QList<QDeclarativeSoundInstance*> m_managedDeclSoundInstances;
QList<QDeclarativeSoundInstance*> m_managedDeclSndInstancePool;
void releaseManagedDeclarativeSoundInstance(QDeclarativeSoundInstance* declSndInstance);
};
QT_END_NAMESPACE
#endif
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