/*

* Copyright (c) 2009 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:

*

*/

using System;

using System.Collections.Generic;

using System.Collections.ObjectModel;

using System.Text;

namespace SymbianImageLib.Common.Content

{

    public class SIContentList : IEnumerable<SIContent>

    {

        #region Constructors

        public SIContentList()

        {

        }

        #endregion

        #region API

        public bool TryToGetFile( string aFileName, out SIContent aFile )

        {

            aFile = null;

            bool ret = iList.Contains( aFileName );

            if ( ret )

            {

                aFile = iList[ aFileName ];

            }

            return ret;

        }

        public bool Contains( SIContent aFile )

        {

            return iList.Contains( aFile );

        }

        public void Add( SIContent aFile )

        {

            if ( iList.Contains( aFile ) )

            {

                throw new ArgumentException( "Specified file is already part of the list" );

            }

            iList.Add( aFile );

        }

        public void Remove( SIContent aFile )

        {

            if ( iList.Contains( aFile ) )

            {

                iList.Remove( aFile );

            }

        }

        #endregion

        #region Properties

        public int Count

        {

            get { return iList.Count; }

        }

        public SIContent this[ int aIndex ]

        {

            get { return iList[ aIndex ]; }

        }

        public SIContent this[ string aFileName ]

        {

            get

            {

                string key = aFileName.ToUpper();

                return iList[ key ];

            }

        }

        #endregion

        #region Internal class

        private class FileList : KeyedCollection<string, SIContent>

        {

            #region Constructors

            public FileList()

            {

            }

            #endregion

            #region From KeyedCollection

            protected override string GetKeyForItem( SIContent aItem )

            {

                return aItem.FileName.ToUpper();

            }

            #endregion

        }

        #endregion

        #region From IEnumerable<SymbianImageContentFile>

        public IEnumerator<SIContent> GetEnumerator()

        {

            foreach ( SIContent file in iList )

            {

                yield return file;

            }

        }

        System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()

        {

            foreach ( SIContent file in iList )

            {

                yield return file;

            }

        }

        #endregion

        #region Data members

        private FileList iList = new FileList();

        #endregion

    }

}