1 /*

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

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 * 

    14 * Description:

    15 *

    16 */

    17 using System;

    18 using System.Collections.Generic;

    19 using System.Text;

    20 using System.IO;

    21 using SymbianUtils;

    22 using SymbianUtils.Tracer;

    23 using SymbianUtils.Streams;

    24 using SymbianStructuresLib.Uids;

    25 using SymbianStructuresLib.Compression.Common;

    26 using SymbianImageLib.Common.Content;

    27 using SymbianImageLib.Common.Image;

    28 using SymbianImageLib.Common.Streams;

    29 using SymbianImageLib.ROFS.Image;

    30 

    31 namespace SymbianImageLib.ROFS.Content

    32 {

    33     public class SIContentROFSData : SIContent

    34     {

    35         #region Constructors

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

    37             : base( aImage )

    38         {

    39             iFileName = aName;

    40             iUids = aUids;

    41             iFileSize = aSize;

    42             iPosition = aPosition;

    43         }

    44         #endregion

    45 

    46         #region From SymbianImageContentFile

    47         public override TSymbianCompressionType CompressionType

    48         {

    49             get

    50             {

    51                 return TSymbianCompressionType.ENone;

    52             }

    53         }

    54 

    55         public override string FileName

    56         {

    57             get { return iFileName; }

    58         }

    59 

    60         public override uint FileSize

    61         {

    62             get { return iFileSize; }

    63         }

    64 

    65         public override uint ContentSize

    66         {

    67             get { return FileSize; }

    68         }

    69 

    70         public override TCheckedUid Uid

    71         {

    72             get { return iUids; }

    73         }

    74 

    75         public override byte[] GetAllData()

    76         {

    77             byte[] ret = null;

    78             //

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

    80             {

    81                 reader.Position = iPosition;

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

    83             }

    84             //

    85             return ret;

    86         }

    87 

    88         public override bool IsCode

    89         {

    90             get { return false; }

    91         }

    92 

    93         protected override uint DoProvideDataUInt32( uint aTranslatedAddress )

    94         {

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

    96             {

    97                 reader.Seek( aTranslatedAddress );

    98                 uint ret = reader.ReadUInt32();

    99                 return ret;

   100             }

   101         }

   102 

   103         protected override ushort DoProvideDataUInt16( uint aTranslatedAddress )

   104         {

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

   106             {

   107                 reader.Seek( aTranslatedAddress );

   108                 ushort ret = reader.ReadUInt16();

   109                 return ret;

   110             }

   111         }

   112 

   113         protected override bool GetIsContentPrepared()

   114         {

   115             // We just read straight from the file

   116             return true;

   117         }

   118         #endregion

   119 

   120         #region Properties

   121         public long Position

   122         {

   123             get { return iPosition; }

   124         }

   125         #endregion

   126 

   127         #region Data members

   128         private readonly string iFileName;

   129         private readonly uint iFileSize;

   130         private readonly long iPosition;

   131         private readonly TCheckedUid iUids;

   132         #endregion

   133     }

   134 }