menucontentsrv/enginc/menuengidsetter.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 17 Dec 2009 08:54:17 +0200
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/*
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* Copyright (c) 2009 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:
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*
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*/
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#ifndef __MENUENGIDSETTER_H__
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#define __MENUENGIDSETTER_H__
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// INCLUDES
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#include <e32base.h>
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#include "menuengvisitor.h"
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// FORWARD DECLARATION
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class CMenuEngIdManager;
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// CLASS DECLARATION
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/**
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* Menu Engine ID setter - recurse the menu tree and, allocate and set ID to
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* all objects that does not have one.
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*/
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NONSHARABLE_CLASS( TMenuEngIdSetter ): public MMenuEngVisitor
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    {
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public:     // construction
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    /**
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    * Constructor.
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    * @param aIdManager Ids are allocated from this manager.
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    */
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    TMenuEngIdSetter( CMenuEngIdManager& aIdManager )
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        : iIdManager( aIdManager ) {}
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public:     // new methods
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    /**
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    * Enter folder.
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    * @param aFolder Entering this folder.
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    * @return ETrue (visit children of this folder).
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    */
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    TBool VisitEnterL( CMenuEngObject& aFolder )
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        { SetIdL( aFolder ); return ETrue; }
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    /**
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    * Visit leaf node.
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    * @param aLeaf Leaf node.
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    * @return ETrue (visit next sibling of this leaf).
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    */
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    TBool VisitL( CMenuEngObject& aLeaf )
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        { SetIdL( aLeaf ); return ETrue; }
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private:    // new methods
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    /**
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    * Set ID from for this object.
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    * @param aObject Object.
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    */
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    void SetIdL( CMenuEngObject& aObject );
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private:    // data
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    CMenuEngIdManager& iIdManager; ///< Id manager.
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    };
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#endif // __MENUENGIDSETTER_H__