switch classes still using the cos object approach to the tokenization approach initally used for parsing cmap files.

This commit is contained in:
Eliot Jones
2018-01-19 00:35:04 +00:00
parent 0ead678a43
commit a0deab446b
50 changed files with 1122 additions and 455 deletions

View File

@@ -1,7 +1,14 @@
namespace UglyToad.PdfPig.Tokenization.Tokens
{
using System;
using Filters;
internal class StreamToken : IDataToken<byte[]>
{
private readonly object lockObject = new object();
private byte[] decodedBytes;
public DictionaryToken StreamDictionary { get; }
public byte[] Data { get; }
@@ -11,5 +18,28 @@
StreamDictionary = streamDictionary;
Data = data;
}
public byte[] Decode(IFilterProvider filterProvider)
{
lock (lockObject)
{
if (decodedBytes != null)
{
return decodedBytes;
}
var filters = filterProvider.GetFilters(StreamDictionary);
var transform = Data;
for (var i = 0; i < filters.Count; i++)
{
transform = filters[i].Decode(transform, StreamDictionary, i);
}
decodedBytes = transform;
return transform;
}
}
}
}