1 /*

     2 * Copyright (c) 2007-2008 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:  Implementation of model interface

    15  *

    16 */

    17 

    18 

    19 #ifndef	I_MULMODEOBSERVER_H

    20 #define I_MULMODEOBSERVER_H

    21 

    22 #include <alf/ialfmodelchangeobserver.h> 

    23 

    24 namespace Alf

    25 	{

    26 	

    27 //Forward Declaration

    28 class IMulVariantType;

    29 

    30 /**

    31  * Observer interface to provide notification about model state change.

    32  * Widget needs to implement this interface to get highlight or marking change event.

    33  */

    34 class IMulModelObserver //: public IAlfModelChangeObserver

    35 	{

    36 	

    37 public: //enum

    38 

    39 	/**

    40 	 *Changed state of model 

    41 	 */

    42 	enum TMulChangedState 

    43 	    { 

    44 	    EHighlightChanged = 1, 

    45 	    EMarkingChanged,

    46 	    EDataWindowUpdated, 

    47 	    EItemsInserted,

    48 	    EItemsRemoved,

    49 	    EItemUpdated,

    50 	    ETemplateChanged,

    51 	    EModelRefreshed

    52 	    };

    53 

    54 public: //method

    55 

    56 	/**

    57      * Notify observer about IMulModel state change.

    58 	 * Observer will be notified when highlight or marking is changed from model.

    59 	 *

    60 	 * @param aState Highlight or making changed

    61 	 * @param aData Index of new highlight or Index of marked or unmarked item.

    62 	 *				( Item is marked or not should be checked using IMulModelAccessor interface)

    63 	 */

    64 	virtual void ModelStateChanged( TMulChangedState aState, IMulVariantType& aData ) = 0;

    65 

    66 	};

    67 	

    68 	} // Namespace Alf

    69 	

    70 #endif //I_MULMODEOBSERVER_H	

    71 	

    72 //End of file

    73