Mercurial > repos > IBBoard.ArmyBuilder.API

annotate Extractors/ArmyBuilderFileExtractor.cs @ 3:1a54f6afafe7

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Re #84 and #85: Support Army Builder v2/v3 files * Separate out the two versions of file * Restructure file loader to load v2 files correctly * Tidy up file extractor (still not working)
author IBBoard <dev@ibboard.co.uk>
date Sun, 17 May 2009 18:40:36 +0000
parents 1a5205612b72
children d2f7826147eb
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1 // This file (ArmyBuilderFileExtractor.cs) is a part of the IBBoard.ArmyBuilder.API project and is copyright 2009 IBBoard
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2 //
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3 // The file and the library/program it is in are licensed under the GNU LGPL license, either version 3 of the License or (at your option) any later version. Please see COPYING.LGPL for more information and the full license.
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4 //
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5
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6 using System;
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7 using System.IO;
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8 using ICSharpCode.SharpZipLib.Zip.Compression.Streams;
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9 using IBBoard.ArmyBuilder.API;
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10
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11 namespace IBBoard.ArmyBuilder.API.Extractors
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12 {
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13 public class ArmyBuilderFileExtractor
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14 {
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15 public static byte[] GetFileEntryContent(FileTableEntry entry)
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16 {
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17 InflaterInputStream zipped = null;
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18 byte[] byteArr = new byte[entry.FileSize];
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20 try
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21 {
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22 byte[] compressed = GetFileEntryCompressedContent(entry);
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23 MemoryStream ms = new MemoryStream(compressed);
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24 ms.Seek(0, SeekOrigin.Begin);
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25 zipped = new InflaterInputStream(ms, new Inflater(true));
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26
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27 int size = 0;
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28 int pos = 0;
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30 do
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31 {
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32 size = zipped.Read(byteArr, pos, byteArr.Length);
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33 pos+=size;
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34 }
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35 while (size > 0);
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36 }
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37 finally
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38 {
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39 if (zipped != null)
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40 {
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41 zipped.Close();
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42 }
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43 }
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45 return byteArr;
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46 }
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48 public static byte[] GetFileEntryCompressedContent(FileTableEntry entry)
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49 {
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50 FileStream stream = entry.GetParentFileStream();
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51 stream.Seek(entry.Location, SeekOrigin.Begin);
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52 byte[] bytes = new byte[entry.CompressedSize];
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54 try
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55 {
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56 stream.Read(bytes, 0, entry.CompressedSize);
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57 }
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58 finally
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59 {
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60 stream.Close();
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61 }
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63 return bytes;
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64 }
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65 }
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66 }