/*

* 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.Text;

using System.IO;

using SymbianUtils;

using SymbianUtils.Tracer;

using SymbianUtils.Streams;

using SymbianStructuresLib.Uids;

using SymbianStructuresLib.Compression.Common;

using SymbianImageLib.Common.Content;

using SymbianImageLib.Common.Image;

using SymbianImageLib.Common.Streams;

using SymbianImageLib.ROFS.Image;

namespace SymbianImageLib.ROFS.Content

{

    public class SIContentROFSData : SIContent

    {

        #region Constructors

        internal SIContentROFSData( SIROFS aImage, string aName, uint aSize, long aPosition, TCheckedUid aUids )

            : base( aImage )

        {

            iFileName = aName;

            iUids = aUids;

            iFileSize = aSize;

            iPosition = aPosition;

        }

        #endregion

        #region From SymbianImageContentFile

        public override TSymbianCompressionType CompressionType

        {

            get

            {

                return TSymbianCompressionType.ENone;

            }

        }

        public override string FileName

        {

            get { return iFileName; }

        }

        public override uint FileSize

        {

            get { return iFileSize; }

        }

        public override uint ContentSize

        {

            get { return FileSize; }

        }

        public override TCheckedUid Uid

        {

            get { return iUids; }

        }

        public override byte[] GetAllData()

        {

            byte[] ret = null;

            //

            using ( SymbianStreamReaderLE reader = SymbianStreamReaderLE.New( (Stream) base.ImageStream, SymbianStreamReaderLE.TCloseOperation.EResetPosition ) )

            {

                reader.Position = iPosition;

                ret = reader.ReadBytes( (int) iFileSize );

            }

            //

            return ret;

        }

        public override bool IsCode

        {

            get { return false; }

        }

        protected override uint DoProvideDataUInt32( uint aTranslatedAddress )

        {

            using ( SymbianStreamReaderLE reader = Image.Stream.CreateReader( SymbianStreamReaderLE.TCloseOperation.ENone ) )

            {

                reader.Seek( aTranslatedAddress );

                uint ret = reader.ReadUInt32();

                return ret;

            }

        }

        protected override ushort DoProvideDataUInt16( uint aTranslatedAddress )

        {

            using ( SymbianStreamReaderLE reader = Image.Stream.CreateReader( SymbianStreamReaderLE.TCloseOperation.ENone ) )

            {

                reader.Seek( aTranslatedAddress );

                ushort ret = reader.ReadUInt16();

                return ret;

            }

        }

        protected override bool GetIsContentPrepared()

        {

            // We just read straight from the file

            return true;

        }

        #endregion

        #region Properties

        public long Position

        {

            get { return iPosition; }

        }

        #endregion

        #region Data members

        private readonly string iFileName;

        private readonly uint iFileSize;

        private readonly long iPosition;

        private readonly TCheckedUid iUids;

        #endregion

    }

}