/*

* Copyright (c) 2005 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:  Tools for handling presence attribute models in arrays.

*

*/

#ifndef PENGATTRMODELHELPER_H__

#define PENGATTRMODELHELPER_H__

//  INCLUDES

#include <e32base.h>

// FORWARD DECLARATION

class MPEngPresenceAttrModel2;

// CLASS DECLARATION

/**

 * Tools for handling presence attribute models in arrays.

 *

 * @since 3.0

 */

NONSHARABLE_CLASS( PEngAttrModelHelper )

    {

public: //Attribute model handling

    /**

     * Adds the given model to destination array.

     * If destination array has already a model with

     * same type and presence id, delets the original one

     * replaces the original one with given one.

     *

     * @since 3.0

     * @param aModels The model array where to add the given model.

     * @param aModels The model to add.

     */

    static void AddOrReplaceModelL( RPointerArray< MPEngPresenceAttrModel2 >& aModels,

                                    MPEngPresenceAttrModel2& aModel );

    /**

     * Moves models from given source array to

     * destination array.

     *

     * @since 3.0

     * @param aFrom The model array where from to move models.

     * @param aTo The destination array to move.

     */

    static void MoveModelsL( RPointerArray< MPEngPresenceAttrModel2 >& aFrom,

                             RPointerArray< MPEngPresenceAttrModel2 >& aTo );

    /**

     * Checks that the given model array doesn't contain

     * duplicate attribute types. If it contains, returns ETrue.

     * Else returns EFalse.

     *

     * @since 3.0

     * @param aModels The model array to check.

     * @retrun ETrue if model array contains duplicates.

     * Else EFalse.

     */

    static TBool HasDuplicateTypes(

        RPointerArray< MPEngPresenceAttrModel2 >& aModels );

private: //Prohibited constructor and destructor

    PEngAttrModelHelper();

    ~PEngAttrModelHelper();

    };

#endif      //  PENGATTRMODELHELPER_H__

//  End of File