1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:     

    15 *

    16 */

    17 

    18 

    19 #ifndef HGBUFFEROWNERIFACE_H_

    20 #define HGBUFFEROWNERIFACE_H_

    21 

    22 #include <e32base.h>

    23 

    24 /**

    25  * Buffer observer interface. 

    26  */

    27 class MHgBufferOwner

    28     {

    29 public:

    30     /**

    31      * Buffer position changed. 

    32      * The items between the aReleaseStart and aReleaseEnd should be released as soon as possible.

    33      * 

    34      * @param aReleaseStart The index of the first item in buffer.

    35      * @param aReleaseEnd The index of the last item in buffer.

    36      */

    37     virtual void Release(TInt aReleaseStart, TInt aReleaseEnd) = 0 ;

    38     };

    39 

    40 #endif /*HGBUFFEROWNERIFACE_H_*/