internetradio2.0/commandchannelinc/irctrlcommand.h
changeset 0 09774dfdd46b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/internetradio2.0/commandchannelinc/irctrlcommand.h	Mon Apr 19 14:01:53 2010 +0300
@@ -0,0 +1,85 @@
+/*
+* Copyright (c) 2006-2007 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  ?Description
+*
+*/
+
+
+#ifndef IRCTRLCOMMAND_H
+#define IRCTRLCOMMAND_H
+
+#include <e32cmn.h>
+
+#include "ircontrolparams.h"
+
+/**
+* Class is an abstract class which provides interfaces to pass commands
+* MCtrlCommand can pass a command and value to the inherited class
+* FetchVolume is meant for fetching the volume
+* DoAudioFadeOut is to activate Fade out fade in effect
+*/
+class MIRCtrlCmdObserver
+    {
+public:
+    /**
+     * Function : MCrtlCmdCommand
+     * Function is pure virtual function which used to pass commands
+     * @param TIRControlCommmand represents the commands,which determines 
+     * what action to be taken
+     * @param aValue represents any integer value if any, like buffering
+     * percentage
+     */
+    virtual void MCtrlCommand( TIRControlCommmand aCommand, TInt aValue ) = 0;
+
+    /**
+     * Function : FetchVolume
+     * Function is pure virtual function which sents Request to get the
+     * current volume index
+     * @return volume index
+     */
+    virtual TInt FetchVolume() = 0;
+    
+    /**
+     * Function : DoAudioFadeOut
+     * Function is pure virtual function, it is used to sent request start 
+     * audio Fade Out
+     */
+    virtual void DoAudioFadeOut() = 0;
+    /**
+     * Function : PlayerChanged()
+     * Function is pure virtual function, It notifies the Observer WhenEver
+	* Player Changed
+     * audio Fade Out
+     */
+    virtual void PlayerChanged() = 0;
+    };
+
+/**
+* Class is an abstract class which provides interfaces to fill the buffer
+* Request to fill the buffer is made through this interface
+*/
+class MIRStreamFill
+    {
+public:
+    /**
+     * Function: FilltheBuffer
+     * function is pure virtual implementation of and is call to fill
+     * the buffer 
+     * @param reference to the buffer to be filled with data
+     */
+    virtual void FilltheBuffer(TDes8& aInputBuffer) = 0;
+    };
+    
+#endif //IRCTRLCOMMAND_H
+