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/****************************************************************************
**
** 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_audiosample_p.h"
#include "qdeclarative_audioengine_p.h"
#include "qdebug.h"
#include "qsoundbuffer_p.h"
#include "qaudioengine_p.h"
#define DEBUG_AUDIOENGINE
QT_USE_NAMESPACE
/*!
\qmlclass AudioSample QDeclarativeAudioSample
\since 5.0
\brief The AudioSample element allows you to load audio samples, mostly wav file.
\ingroup qml-multimedia
\inherits Item
This element is part of the \bold{QtAudioEngine 1.0} module.
AudioSample element can be accessed through AudioEngine::samples with its unique name and must
be defined inside AudioEngine.
\qml
import QtQuick 2.0
import QtAudioEngine 1.0
Rectangle {
color:"white"
width: 300
height: 500
AudioEngine {
id:audioengine
AudioSample {
name:"explosion"
source: "explosion-02.wav"
}
}
}
\endqml
*/
QDeclarativeAudioSample::QDeclarativeAudioSample(QObject *parent)
: QObject(parent)
, m_complete(false)
, m_streaming(false)
, m_preloaded(false)
, m_soundBuffer(0)
{
}
QDeclarativeAudioSample::~QDeclarativeAudioSample()
{
}
void QDeclarativeAudioSample::classBegin()
{
if (!parent() || !parent()->inherits("QDeclarativeAudioEngine")) {
qWarning("AudioSample must be defined inside AudioEngine!");
return;
}
}
void QDeclarativeAudioSample::componentComplete()
{
if (m_name.isEmpty()) {
qWarning("AudioSample must have a name!");
return;
}
m_complete = true;
}
QUrl QDeclarativeAudioSample::source() const
{
return m_url;
}
void QDeclarativeAudioSample::setSource(const QUrl& url)
{
if (m_complete) {
qWarning("AudioSample: source not changable after initialization.");
return;
}
m_url = url;
}
bool QDeclarativeAudioSample::isStreaming() const
{
return m_streaming;
}
/*!
\qmlproperty bool AudioSample::preloaded
This property holds indicates whether this sample needs to be preloaded or not.
If true, the audio engine will start loading the sample file immediately when the app started,
otherwise the sample will not be loaded untill be used by other element.
*/
bool QDeclarativeAudioSample::isPreloaded() const
{
return m_preloaded;
}
/*!
\qmlproperty bool AudioSample::isLoaded
This property holds indicates whether this sample has been loaded into memory or not.
*/
bool QDeclarativeAudioSample::isLoaded() const
{
if (!m_soundBuffer)
return false;
return m_soundBuffer->isReady();
}
/*!
\qmlproperty AudioSample::load()
Starts loading the sample into memory if not loaded.
*/
void QDeclarativeAudioSample::load()
{
if (isLoaded())
return;
if (!m_soundBuffer) {
m_preloaded = true;
return;
}
m_soundBuffer->load();
}
void QDeclarativeAudioSample::setPreloaded(bool preloaded)
{
if (m_complete) {
qWarning("AudioSample: preloaded not changable after initialization.");
return;
}
m_preloaded = preloaded;
}
void QDeclarativeAudioSample::setStreaming(bool streaming)
{
if (m_complete) {
qWarning("AudioSample: streaming not changable after initialization.");
return;
}
m_streaming = streaming;
}
/*!
\qmlproperty string AudioSample::name
This property holds the name of AudioSample, must be unique among all samples and only
defined once.
*/
QString QDeclarativeAudioSample::name() const
{
return m_name;
}
void QDeclarativeAudioSample::setName(const QString& name)
{
if (m_complete) {
qWarning("AudioSample: name not changable after initialization.");
return;
}
m_name = name;
}
void QDeclarativeAudioSample::init()
{
if (m_streaming) {
//TODO
} else {
m_soundBuffer =
qobject_cast<QDeclarativeAudioEngine*>(parent())->engine()->getStaticSoundBuffer(m_url);
if (m_soundBuffer->isReady()) {
emit loadedChanged();
} else {
connect(m_soundBuffer, SIGNAL(ready()), this, SIGNAL(loadedChanged()));
}
if (m_preloaded) {
m_soundBuffer->load();
}
}
}
QSoundBuffer* QDeclarativeAudioSample::soundBuffer() const
{
return m_soundBuffer;
}
/*!
\qmlsignal AudioSample::onLoadedChanged()
This handler is called when \l loaded is changed
*/
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