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/* This file is part of the KDE project.
Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
This library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 2.1 or 3 of the License.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <e32debug.h>
#include "audiooutput.h"
#include "defs.h"
#include "utils.h"
#include "volumeobserver.h"
using namespace Phonon;
using namespace Phonon::MMF;
//-----------------------------------------------------------------------------
// Constructor / destructor
//-----------------------------------------------------------------------------
MMF::AudioOutput::AudioOutput(Backend *, QObject *parent) : QObject(parent)
, m_volume(InitialVolume)
, m_observer(NULL)
{
}
//-----------------------------------------------------------------------------
// Public API
//-----------------------------------------------------------------------------
qreal MMF::AudioOutput::volume() const
{
return m_volume;
}
void MMF::AudioOutput::setVolume(qreal volume)
{
TRACE_CONTEXT(AudioOutput::setVolume, EAudioApi);
TRACE_ENTRY("observer 0x%08x volume %f", m_observer, volume);
if(volume != m_volume)
{
if(m_observer)
{
m_observer->volumeChanged(volume);
}
m_volume = volume;
TRACE("emit volumeChanged(%f)", volume)
emit volumeChanged(volume);
}
TRACE_EXIT_0();
}
int MMF::AudioOutput::outputDevice() const
{
return 0;
}
bool MMF::AudioOutput::setOutputDevice(int)
{
return true;
}
bool MMF::AudioOutput::setOutputDevice(const Phonon::AudioOutputDevice &)
{
return true;
}
void MMF::AudioOutput::setVolumeObserver(VolumeObserver& observer)
{
Q_ASSERT(!m_observer);
m_observer = &observer;
m_observer->volumeChanged(m_volume);
}
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