/*  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 <StereoWideningBase.h>

#include "stereowidening.h"

QT_BEGIN_NAMESPACE

using namespace Phonon;

using namespace Phonon::MMF;

// Define functions which depend on concrete native effect class name

PHONON_MMF_DEFINE_EFFECT_FUNCTIONS(StereoWidening)

/*! \class MMF::StereoWidening

  \internal

*/

StereoWidening::StereoWidening(QObject *parent, const QList<EffectParameter>& parameters)

    :   AbstractAudioEffect::AbstractAudioEffect(parent, parameters)

{

}

int StereoWidening::parameterChanged(const EffectParameter &param,

                                 const QVariant &value)

{

    Q_ASSERT_X(param.id() == ParameterBase, Q_FUNC_INFO, "Invalid parameter ID");

    const qreal externalLevel = value.toReal();

    const int internalLevel = param.toInternalValue(externalLevel);

    TRAPD(err, concreteEffect()->SetStereoWideningLevelL(internalLevel));

    return err;

}

//-----------------------------------------------------------------------------

// Static functions

//-----------------------------------------------------------------------------

const char* StereoWidening::description()

{

    return "Stereo widening";

}

bool StereoWidening::getParameters(CMdaAudioOutputStream *stream,

    QList<EffectParameter> &parameters)

{

    bool supported = false;

    QScopedPointer<CStereoWidening> effect;

    TRAPD(err, effect.reset(CStereoWidening::NewL(*stream)));

    if (KErrNone == err) {

        supported = true;

        const qreal defaultValue =

            Phonon::MMF::EffectParameter::toExternalValue

                (effect->StereoWideningLevel(), 0, 100);

        EffectParameter param(

             /* parameterId */        ParameterBase,

             /* name */               tr("Level (%)"),

             /* hints */              EffectParameter::IntegerHint,

             /* defaultValue */       QVariant(defaultValue),

             /* minimumValue */       QVariant(qreal(-1.0)),

             /* maximumValue */       QVariant(qreal(+1.0)));

        param.setInternalRange(0, 100);

        parameters.append(param);

    }

    return supported;

}

QT_END_NAMESPACE