author | Matti Laitinen <matti.t.laitinen@nokia.com> |
Thu, 11 Feb 2010 15:50:58 +0200 | |
changeset 0 | 818e61de6cd1 |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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using System; |
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using System.Collections.Generic; |
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using System.Text; |
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using System.IO; |
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using SymbianUtils.Tracer; |
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using SymbianUtils.Streams; |
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using SymbianStructuresLib.Uids; |
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using SymbianStructuresLib.Compression.Common; |
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using SymbianImageLib.Common.Header; |
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using SymbianImageLib.Common.Image; |
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using SymbianImageLib.Common.Streams; |
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using SymbianImageLib.E32Image.Content; |
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using SymbianImageLib.E32Image.Header; |
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using SymbianImageLib.E32Image.Exceptions; |
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|
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namespace SymbianImageLib.E32Image.Image |
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{ |
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public class SymbianImageE32 : SIImage |
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{ |
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#region Constructors |
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public SymbianImageE32( FileInfo aFileInfo, ITracer aTracer ) |
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: this( aFileInfo.FullName, (uint) aFileInfo.Length, 0, new SIStream( aFileInfo.OpenRead() ), aTracer ) |
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{ |
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} |
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|
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internal SymbianImageE32( string aImageName, uint aImageContentSize, long aImageContentOffset, SIStream aStream, ITracer aTracer ) |
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: base( aTracer, aStream, aImageName ) |
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{ |
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iContentOffsetWithinDataStream = aImageContentOffset; |
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// |
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using ( SymbianStreamReaderLE reader = base.Stream.CreateReader() ) |
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{ |
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reader.Seek( iContentOffsetWithinDataStream ); |
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iHeader = new SIHeaderE32Image( this, reader ); |
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} |
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|
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// Since we are a single e32 image, we have a single e32 Image file descriptor |
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SIContentE32Image file = new SIContentE32Image( this, aImageName, aImageContentSize, aImageContentOffset ); |
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base.RegisterFile( file ); |
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} |
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#endregion |
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|
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#region From SIImage |
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public override SIHeader Header |
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{ |
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get { return iHeader; } |
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} |
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#endregion |
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|
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#region API |
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public static bool IsImageFile( Stream aStream ) |
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{ |
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return IsImageFile( aStream, aStream.Position ); |
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} |
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|
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public static bool IsImageFile( Stream aStream, long aPosition ) |
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{ |
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bool ret = false; |
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// |
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try |
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{ |
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using ( SymbianStreamReaderLE reader = SymbianStreamReaderLE.New( aStream, SymbianStreamReaderLE.TCloseOperation.EResetPosition ) ) |
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{ |
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aStream.Seek( aPosition, SeekOrigin.Begin ); |
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// |
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byte[] bytes = reader.ReadBytes( SIHeaderE32Image.KMinimumSize ); |
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ret = SIHeaderE32Image.IsSymbianImageHeader( bytes ); |
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} |
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} |
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catch ( Exception ) |
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{ |
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} |
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return ret; |
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} |
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#endregion |
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|
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#region Properties |
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internal TCheckedUid Uid |
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{ |
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get |
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{ |
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return iHeader.Uid; |
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} |
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} |
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|
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internal long ContentOffsetWithinDataStream |
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{ |
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get { return iContentOffsetWithinDataStream; } |
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} |
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#endregion |
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#region Internal methods |
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#endregion |
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parents:
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|
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parents:
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#region Data members |
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private readonly SIHeaderE32Image iHeader; |
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private readonly long iContentOffsetWithinDataStream; |
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parents:
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#endregion |
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parents:
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} |
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parents:
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} |