/*

* Copyright (c) 2008 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:  Node predicate header

*

*/

#ifndef XNNODEPREDICATE_H

#define XNNODEPREDICATE_H

// System includes

#include <e32base.h>

// forward declarations

class CXnNode;

// Class declarations

/**

 *  Compares two objects.

 *

 *  @ingroup group_xnlayoutengine 

 *  @lib xn3layoutengine.lib

 *  @since Series 60 3.1

 */

class MXnNodePredicate

    {

public:

    // Constructors and destructor

    /**

     * C++ default constructor.

     */

    IMPORT_C MXnNodePredicate();

    /**

     * Destructor.

     */

    IMPORT_C virtual ~MXnNodePredicate();

public:

    // New functions

    /**

     * Tests whether an object matches the predicate

     * 

     * @since Series 60 3.1

     * @param aItem Object to test

     * @return ETrue if matches, EFalse if not

     */

    IMPORT_C virtual TBool Match( CXnNode& aItem );

    };

#endif      // XNNODEPREDICATE_H