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97 lines
2.3 KiB
97 lines
2.3 KiB
/* This file is part of the KDE project
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Copyright (C) 2004 Matthias Kretz <kretz@kde.org>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License version 2 as published by the Free Software Foundation.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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*/
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#ifndef KDEMM_CHANNEL_H
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#define KDEMM_CHANNEL_H
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#include <kdemm/mixeriface.h>
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class TQString;
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namespace KDE
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{
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namespace Multimedia
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{
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/**
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* \short Abstraction of different inputs or outputs
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*
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* \author Matthias Kretz <kretz@kde.org>
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* \since 4.0
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*/
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class KDE_EXPORT Channel : public TQObject, virtual public MixerIface
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{
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Q_OBJECT
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public:
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virtual ~Channel();
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enum Direction
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{
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Input,
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Output
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};
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/**
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* The user visible name of the channel
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*/
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virtual TQString channelName() const;
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/**
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* The (internal) channel type.
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*/
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virtual TQString channelType() const;
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/**
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* Whether it is an Input or Output channel
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*/
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virtual Direction direction() const;
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/**
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* If the channel has a volume control this function returns \p true
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*/
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virtual bool hasVolumeControl() const = 0;
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/**
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* The current volume of the channel
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*/
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virtual float volume() const = 0;
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/**
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* Set the volume for the channel
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*
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* \returns Returns \p true if the volume has been successfully set
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*/
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virtual bool setVolume( float volume ) = 0;
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protected:
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/**
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* You can not instantiate channels yourself, use the Factory to
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* create them.
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*/
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Channel( const TQString & channelName, const TQString & type, Direction direction,
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TQObject * parent = 0, const char * name = 0 );
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private:
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class Private;
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Private * d;
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};
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}} // namespaces
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// vim: sw=4 ts=4 noet tw=80
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#endif // KDEMM_CHANNEL_H
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