/*

* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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: 

*

*/

#ifndef __LINKLIST_H__

#define __LINKLIST_H__

class LinkedListIterator;

class LinkedList;

class ListItem

	{

	friend class LinkedList;

	friend class LinkedListIterator;

public:

	ListItem();

	virtual ~ListItem();

private:

	ListItem* iNext;

	};

class LinkedList

	{

	friend class LinkedListIterator;

public:

	LinkedList();

	~LinkedList();

	void AddToHead(ListItem* aNewItem);

	void AddToTail(ListItem* aNewItem);

	void AddAfter(ListItem* aBeforeItem,ListItem* aNewItem);

	void RemoveItem(ListItem* aItem);

	ListItem* TailItem();

	ListItem* Previous(ListItem* aItem);

	void DeleteAll();

	int IsEmpty();

private:

	 ListItem*	iHead;

	 ListItem* iTail;

	};

class LinkedListIterator

	{

public:

	LinkedListIterator(const LinkedList& aList);

	LinkedListIterator(ListItem* aItem);

	ListItem* operator()();

	void Reset();

private:

	const LinkedList* iList;

	ListItem* iCurrentItem;

	};

#endif