Phonon

volumefaderinterface.h
1/* This file is part of the KDE project
2 Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). <thierry.bastian@trolltech.com>
3
4 This library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) version 3, or any
8 later version accepted by the membership of KDE e.V. (or its
9 successor approved by the membership of KDE e.V.), Nokia Corporation
10 (or its successors, if any) and the KDE Free Qt Foundation, which shall
11 act as a proxy defined in Section 6 of version 3 of the license.
12
13 This library is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
17
18 You should have received a copy of the GNU Lesser General Public
19 License along with this library. If not, see <http://www.gnu.org/licenses/>.
20
21*/
22
23#ifndef PHONON_VOLUMEFADERINTERFACE_H
24#define PHONON_VOLUMEFADERINTERFACE_H
25
26#include "volumefadereffect.h"
27#include <QObject>
28
29
30#ifndef QT_NO_PHONON_VOLUMEFADEREFFECT
31
32namespace Phonon
33{
34class VolumeFaderInterface
35{
36 public:
37 virtual ~VolumeFaderInterface() {}
38
39 virtual float volume() const { return 1.0; }
40 virtual void setVolume(float) {}
41 virtual Phonon::VolumeFaderEffect::FadeCurve fadeCurve() const {
43 }
44 virtual void setFadeCurve(Phonon::VolumeFaderEffect::FadeCurve) {}
45 virtual void fadeTo(float, int) {}
46};
47}
48
49Q_DECLARE_INTERFACE(Phonon::VolumeFaderInterface, "VolumeFaderInterface4.phonon.kde.org")
50
51#endif //QT_NO_PHONON_VOLUMEFADEREFFECT
52
53
54#endif // PHONON_VOLUMEFADERINTERFACE_H
FadeCurve
Determines the curve of the volume change.
@ Fade3Decibel
"Crossfade curve" / "fast" fade out
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