1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
/* This file is part of the KDE project
Copyright (C) 2004 Matthias Kretz <kretz@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License version 2 as published by the Free Software Foundation.
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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#ifndef KDEMM_CHANNEL_H
#define KDEMM_CHANNEL_H
#include <kdemm/mixeriface.h>
class TQString;
namespace KDE
{
namespace Multimedia
{
/**
* \short Abstraction of different inputs or outputs
*
* \author Matthias Kretz <kretz@kde.org>
* \since 4.0
*/
class KDE_EXPORT Channel : public TQObject, virtual public MixerIface
{
Q_OBJECT
public:
virtual ~Channel();
enum Direction
{
Input,
Output
};
/**
* The user visible name of the channel
*/
virtual TQString channelName() const;
/**
* The (internal) channel type.
*/
virtual TQString channelType() const;
/**
* Whether it is an Input or Output channel
*/
virtual Direction direction() const;
/**
* If the channel has a volume control this function returns \p true
*/
virtual bool hasVolumeControl() const = 0;
/**
* The current volume of the channel
*/
virtual float volume() const = 0;
/**
* Set the volume for the channel
*
* \returns Returns \p true if the volume has been successfully set
*/
virtual bool setVolume( float volume ) = 0;
protected:
/**
* You can not instantiate channels yourself, use the Factory to
* create them.
*/
Channel( const TQString & channelName, const TQString & type, Direction direction,
TQObject * parent = 0, const char * name = 0 );
private:
class Private;
Private * d;
};
}} // namespaces
// vim: sw=4 ts=4 noet tw=80
#endif // KDEMM_CHANNEL_H
|
