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