1 // Copyright 2016 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 //
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6 
7 #ifndef CORE_FXCODEC_JBIG2_JBIG2_DOCUMENTCONTEXT_H_
8 #define CORE_FXCODEC_JBIG2_JBIG2_DOCUMENTCONTEXT_H_
9 
10 #include <list>
11 #include <memory>
12 #include <utility>
13 
14 class CJBig2_SymbolDict;
15 
16 using CJBig2_CacheKey = std::pair<uint32_t, uint32_t>;
17 using CJBig2_CachePair =
18     std::pair<CJBig2_CacheKey, std::unique_ptr<CJBig2_SymbolDict>>;
19 
20 // Holds per-document JBig2 related data.
21 class JBig2_DocumentContext {
22  public:
23   JBig2_DocumentContext();
24   ~JBig2_DocumentContext();
25 
GetSymbolDictCache()26   std::list<CJBig2_CachePair>* GetSymbolDictCache() {
27     return &m_SymbolDictCache;
28   }
29 
30  private:
31   std::list<CJBig2_CachePair> m_SymbolDictCache;
32 };
33 
34 #endif  // CORE_FXCODEC_JBIG2_JBIG2_DOCUMENTCONTEXT_H_
35