/*+
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* Copyright (c) 2007-2008 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:  Implementation of model interface+
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 *+
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*/+
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+
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+
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#ifndef	I_MULMODEOBSERVER_H+
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#define I_MULMODEOBSERVER_H+
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+
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#include <alf/ialfmodelchangeobserver.h> +
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+
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namespace Alf+
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	{+
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	+
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//Forward Declaration+
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class IMulVariantType;+
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+
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/**+
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 * Observer interface to provide notification about model state change.+
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 * Widget needs to implement this interface to get highlight or marking change event.+
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 */+
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class IMulModelObserver //: public IAlfModelChangeObserver+
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	{+
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	+
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public: //enum+
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+
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	/**+
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	 *Changed state of model +
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	 */+
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	enum TMulChangedState +
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	    { +
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	    EHighlightChanged = 1, +
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	    EMarkingChanged,+
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	    EDataWindowUpdated, +
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	    EItemsInserted,+
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	    EItemsRemoved,+
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	    EItemUpdated,+
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	    ETemplateChanged,+
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	    EModelRefreshed+
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	    };+
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+
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public: //method+
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+
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	/**+
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     * Notify observer about IMulModel state change.+
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	 * Observer will be notified when highlight or marking is changed from model.+
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	 *+
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	 * @param aState Highlight or making changed+
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	 * @param aData Index of new highlight or Index of marked or unmarked item.+
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	 *				( Item is marked or not should be checked using IMulModelAccessor interface)+
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	 */+
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	virtual void ModelStateChanged( TMulChangedState aState, IMulVariantType& aData ) = 0;+
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+
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	};+
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	+
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	} // Namespace Alf+
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	+
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#endif //I_MULMODEOBSERVER_H	+
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	+
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//End of file+
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	+
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