volumefadereffect.h

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/*  This file is part of the KDE project
    Copyright (C) 2006 Matthias Kretz <kretz@kde.org>

    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 of the License, or (at your option) version 3, or any
    later version accepted by the membership of KDE e.V. (or its
    successor approved by the membership of KDE e.V.), Nokia Corporation 
    (or its successors, if any) and the KDE Free Qt Foundation, which shall
    act as a proxy defined in Section 6 of version 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_VOLUMEFADEREFFECT_H
#define PHONON_VOLUMEFADEREFFECT_H

#include "phonon_export.h"
#include "effect.h"

QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE

#ifndef QT_NO_PHONON_VOLUMEFADEREFFECT

namespace Phonon
{
    class VolumeFaderEffectPrivate;

    class PHONON_EXPORT VolumeFaderEffect : public Effect
    {
        Q_OBJECT
        K_DECLARE_PRIVATE(VolumeFaderEffect)
        PHONON_HEIR(VolumeFaderEffect)
        Q_ENUMS(FadeCurve)
        Q_PROPERTY(float volume READ volume WRITE setVolume)
        Q_PROPERTY(double volumeDecibel READ volumeDecibel WRITE setVolumeDecibel)
        Q_PROPERTY(FadeCurve fadeCurve READ fadeCurve WRITE setFadeCurve)
        public:
            enum FadeCurve {
                Fade3Decibel,
                Fade6Decibel,
                Fade9Decibel,
                Fade12Decibel
            };

            float volume() const;
            double volumeDecibel() const;

            FadeCurve fadeCurve() const;

        public Q_SLOTS:
            void fadeIn(int fadeTime);

            void fadeOut(int fadeTime);

            void setVolume(float volume);
            void setVolumeDecibel(double volumeDecibel);

            void setFadeCurve(FadeCurve curve);

            void fadeTo(float volume, int fadeTime);
    };
} //namespace Phonon

#endif //QT_NO_PHONON_VOLUMEFADEREFFECT

QT_END_NAMESPACE
QT_END_HEADER

// vim: sw=4 ts=4 tw=80
#endif // PHONON_VOLUMEFADEREFFECT_H