1 /*

     2 * Copyright (c) 2004-2008 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 

    18 using System;

    19 using System.IO;

    20 using System.Collections.Generic;

    21 using System.Text;

    22 using System.Threading;

    23 using SymbianStructuresLib.CodeSegments;

    24 using SymbianStructuresLib.Debug.Code;

    25 using SymbianStructuresLib.Debug.Code.Interfaces;

    26 using SymbianCodeLib.SourceManagement.Source;

    27 using SymbianCodeLib.SourceManagement.Provisioning;

    28 using SymbianUtils;

    29 using SymbianUtils.Tracer;

    30 using SymbianUtils.FileTypes;

    31 using SymbianImageLib.Common.Image;

    32 using SymbianImageLib.Common.Content;

    33 using CLPluginImg.Source;

    34 using CLPluginImg.Provider;

    35 

    36 namespace CLPluginImg.Reader

    37 {

    38     internal class ImgReader : DisposableObject

    39 	{

    40         #region Constructors

    41         public ImgReader( ImgSource aSource, ITracer aTracer )

    42 		{

    43             iSource = aSource;

    44             iImageContent = aSource.ImageContent;

    45             iImageContent.DecompressionEvent += new SIContent.DecompressionEventHandler( ImageContent_PreparationEvent );

    46 		}

    47 		#endregion

    48 

    49         #region API

    50         public void Read( TSynchronicity aSynchronicity )

    51         {

    52             iImageContent.PrepareContent( aSynchronicity );

    53         }

    54         #endregion

    55 

    56         #region Properties

    57         protected CodeCollection Collection

    58         {

    59             get

    60             {

    61                 SymbianUtils.SymDebug.SymDebugger.Assert( iSource.Count == 1 );

    62                 return iSource[ 0 ];

    63             }

    64         }

    65 		#endregion

    66 

    67         #region Event handlers

    68         private void ImageContent_PreparationEvent( SIContent.TDecompressionEvent aEvent, SIContent aFile, object aData )

    69         {

    70             switch ( aEvent )

    71             {

    72             case SIContent.TDecompressionEvent.EEventDecompressionStarting:

    73                 iSource.ReportEvent( CodeSource.TEvent.EReadingStarted );

    74                 break;

    75             case SIContent.TDecompressionEvent.EEventDecompressionProgress:

    76                 iSource.ReportEvent( CodeSource.TEvent.EReadingProgress,( aData != null && aData is Int32 ) ? (int) aData : 0 );

    77                 break;

    78             case SIContent.TDecompressionEvent.EEventDecompressionComplete:

    79                 OnComplete();

    80                 break;

    81             }

    82         }

    83         #endregion

    84 

    85         #region Internal methods

    86         private void OnComplete()

    87         {

    88             iSource.ReportEvent( CodeSource.TEvent.EReadingComplete );

    89             this.Dispose();

    90         }

    91         #endregion

    92 

    93         #region From DisposableObject

    94         protected override void CleanupManagedResources()

    95         {

    96             try

    97             {

    98                 base.CleanupManagedResources();

    99             }

   100             finally

   101             {

   102                 iImageContent.DecompressionEvent -= new SIContent.DecompressionEventHandler( ImageContent_PreparationEvent );

   103             }

   104         }

   105         #endregion

   106 

   107         #region Data members

   108         private readonly CodeSource iSource;

   109         private readonly SIContent iImageContent;

   110 		#endregion

   111 	}

   112 }