/*  This file is part of the KDE project.+
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Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).+
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+
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This library is free software: you can redistribute it and/or modify+
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it under the terms of the GNU Lesser General Public License as published by+
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the Free Software Foundation, either version 2.1 or 3 of the License.+
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+
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This library is distributed in the hope that it will be useful,+
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but WITHOUT ANY WARRANTY; without even the implied warranty of+
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the+
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GNU Lesser General Public License for more details.+
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+
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You should have received a copy of the GNU Lesser General Public License+
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along with this library.  If not, see <http://www.gnu.org/licenses/>.+
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+
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*/+
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+
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#include <e32debug.h>+
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+
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#include <QCoreApplication>+
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+
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#include "audiooutput.h"+
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#include "defs.h"+
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#include "mediaobject.h"+
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#include "utils.h"+
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+
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QT_BEGIN_NAMESPACE+
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+
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using namespace Phonon;+
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using namespace Phonon::MMF;+
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+
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/*! \class MMF::AudioOutput+
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  \internal+
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*/+
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+
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//-----------------------------------------------------------------------------+
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// Constructor / destructor+
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//-----------------------------------------------------------------------------+
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+
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MMF::AudioOutput::AudioOutput(Backend *, QObject *parent) : MediaNode(parent)+
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        , m_volume(InitialVolume)+
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{+
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+
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}+
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+
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+
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//-----------------------------------------------------------------------------+
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// Public API+
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//-----------------------------------------------------------------------------+
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+
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qreal MMF::AudioOutput::volume() const+
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{+
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    return m_volume;+
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}+
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+
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void MMF::AudioOutput::setVolume(qreal volume)+
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{+
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    TRACE_CONTEXT(AudioOutput::setVolume, EAudioApi);+
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    TRACE_ENTRY("volume %f", volume);+
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+
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    if (volume != m_volume) {+
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+
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        m_volume = volume;+
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        TRACE("emit volumeChanged(%f)", volume)+
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        emit volumeChanged(volume);+
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    }+
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+
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    TRACE_EXIT_0();+
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}+
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+
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int MMF::AudioOutput::outputDevice() const+
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{+
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    return AudioOutputDeviceID;+
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}+
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+
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bool MMF::AudioOutput::setOutputDevice(int index)+
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{+
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    Q_ASSERT_X(index == AudioOutputDeviceID, Q_FUNC_INFO,+
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               "We only support one output device, with id 0");+
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    return true;+
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}+
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+
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void MMF::AudioOutput::connectMediaObject(MediaObject *mediaObject)+
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{+
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    // Ensure that the MediaObject has the correct initial volume+
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    mediaObject->volumeChanged(m_volume);+
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    // Connect MediaObject to receive future volume changes+
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    connect(this, SIGNAL(volumeChanged(qreal)), mediaObject, SLOT(volumeChanged(qreal)));+
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}+
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+
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void MMF::AudioOutput::disconnectMediaObject(MediaObject *mediaObject)+
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{+
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    // Disconnect all signal-slot connections+
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    disconnect(this, 0, mediaObject, 0);+
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}+
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+
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QHash<QByteArray, QVariant> MMF::AudioOutput::audioOutputDescription(int index)+
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{+
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    QHash<QByteArray, QVariant> retval;+
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+
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    if (index == AudioOutputDeviceID) {+
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        retval.insert("name", QCoreApplication::translate("Phonon::MMF", "Audio Output"));+
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        retval.insert("description", QCoreApplication::translate("Phonon::MMF", "The audio output device"));+
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        retval.insert("available", true);+
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    }+
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+
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    return retval;+
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}+
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+
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QT_END_NAMESPACE+
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