/*

* Copyright (c) 2002-2005 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:  Class definition of XCFW tree node 

*

*/

#ifndef CXCFWNODE_H

#define CXCFWNODE_H

//  INCLUDES

#include <s32std.h>

#include "xcfwnodeinterface.h"

#include "gecoobjectbase.h"

// FORWARD DECLARATIONS

/**

*  Node interface for setting data and relative nodes

*  This interface is not exported, CXCFWTree is the only user. 

*

*  @lib XCFW.lib

*  @since Series 60 3.1

*/

class CXCFWNode : public CBase, public MXCFWNode

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        * @param aData Node data object

        */

        static CXCFWNode* NewL( CGECOObjectBase* aData );

        /**

        * Destructor.

        */

        virtual ~CXCFWNode();

    public: // New functions

        /**

        * Sets parent for this node

        * @since Series 60 3.1

        * @param aNode New parent for this node

        */

        void SetParent( MXCFWNode* aNode );

        /**

        * Sets first child node for this node

        * @since Series 60 3.1

        * @param aNode New first child for this node

        */

        void SetFirstChild( MXCFWNode* aNode );

        /**

        * Sets last child for this node

        * @since Series 60 3.1

        * @param aNode New last child for this node

        */

        void SetLastChild( MXCFWNode* aNode );

        /**

        * Sets next sibling for this node

        * @since Series 60 3.1

        * @param aNode New next sibling for this node

        */

        void SetNextSibling( MXCFWNode* aNode );

        /**

        * Sets previous sibling for this node

        * @since Series 60 3.1

        * @param aNode New previous sibling for this node

        */

        void SetPrevSibling( MXCFWNode* aNode );

        /**

        * Sets content to this node

        * @since Series 60 3.1

        * @param aData New content object to be stored in this node.

        *  Note: Old data pointer should be deleted first.

        */

        void SetData( CGECOObjectBase* aData );

    public: // Functions from base classes

        /**

        * From MXCFWNode. Returns parent node for this node

        */

        IMPORT_C MXCFWNode* Parent();

        /**

        * From MXCFWNode. Returns first child node for this node

        */

        IMPORT_C MXCFWNode* FirstChild();

        /**

        * From MXCFWNode. Returns last child node for this node

        */

        IMPORT_C MXCFWNode* LastChild();

        /**

        * From MXCFWNode. Returns next sibling node for this node

        */

        IMPORT_C MXCFWNode* NextSibling();

        /**

        * From MXCFWNode. Returns previous sibling node for this node

        */

        IMPORT_C MXCFWNode* PrevSibling();

        /**

        * From MXCFWNode. Returns Data object for this node

        */

        IMPORT_C CGECOObjectBase* Data();        

    private:

        /**

        * C++ default constructor.

        */

        CXCFWNode();

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL( CGECOObjectBase* aData );

    private:    // Data

        //Content object parser. Owned

        CGECOObjectBase*    iData;

        //reference to parent node. Not owned

        MXCFWNode*            iParent;

        //reference to first child node. Not owned

        MXCFWNode*            iFirstChild;

        //reference to last child node. Not owned

        MXCFWNode*            iLastChild;

        //reference to previous sibling node. Not owned

        MXCFWNode*            iPrevSibling;

        //reference to next sibling node. Not owned

        MXCFWNode*            iNextSibling;

    };

#endif      // CXCFWNODE_H   

// End of File