1 files changed, 96 insertions, 0 deletions
diff --git a/kdemm/channel.h b/kdemm/channel.h
new file mode 100644
index 000000000..6e47febac
--- /dev/null
+++ b/kdemm/channel.h
@@ -0,0 +1,96 @@
+/*  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