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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/>.
*/
#ifndef PHONON_MMF_EFFECTFACTORY_H
#define PHONON_MMF_EFFECTFACTORY_H
#include "abstractaudioeffect.h"
#include "effectparameter.h"
QT_BEGIN_NAMESPACE
namespace Phonon
{
namespace MMF
{
/**
* @short Contains utility functions related to effects.
*/
class EffectFactory : public QObject
{
Q_OBJECT
public:
EffectFactory(QObject *parent);
~EffectFactory();
enum Type
{
TypeAudioEqualizer = 0
, TypeBassBoost
, TypeDistanceAttenuation
, TypeEnvironmentalReverb
, TypeListenerOrientation
, TypeLoudness
, TypeSourceOrientation
, TypeStereoWidening
};
/**
* @short Creates an audio effect of type @p type.
*/
AbstractAudioEffect *createAudioEffect(Type type, QObject *parent);
/**
* @short Return the properties for effect @p type.
*
* This handles the effects for
* BackendInterface::objectDescriptionProperties().
*/
QHash<QByteArray, QVariant> audioEffectDescriptions(Type type);
/**
* @short Returns the indexes for the supported effects.
*
* This handles the effects for
* BackendInterface::objectDescriptionIndexes().
*/
QList<int> effectIndexes();
private:
void initialize();
struct EffectData
{
bool m_supported;
QHash<QByteArray, QVariant> m_descriptions;
QList<EffectParameter> m_parameters;
};
template<typename BackendNode> EffectData getData();
const EffectData& data(Type type) const;
private:
bool m_initialized;
QHash<Type, EffectData> m_effectData;
};
}
}
QT_END_NAMESPACE
#endif
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