1 /*
2  **********************************************************************
3  *   © 2016 and later: Unicode, Inc. and others.
4  *   License & terms of use: http://www.unicode.org/copyright.html
5  **********************************************************************
6  **********************************************************************
7  *   Copyright (C) 2003-2013, International Business Machines
8  *   Corporation and others.  All Rights Reserved.
9  **********************************************************************
10  */
11 
12 #ifndef __FONTTABLECACHE_H
13 
14 #define __FONTTABLECACHE_H
15 
16 #include "layout/LETypes.h"
17 
18 U_NAMESPACE_USE
19 
20 struct FontTableCacheEntry;
21 
22 class FontTableCache
23 {
24 public:
25     FontTableCache();
26 
27     virtual ~FontTableCache();
28 
29     const void *find(LETag tableTag, size_t &length) const;
30 
31 protected:
32     virtual const void *readFontTable(LETag tableTag, size_t &length) const = 0;
33     virtual void freeFontTable(const void *table) const;
34 
35 private:
36 
37     void add(LETag tableTag, const void *table, size_t length);
38 
39     FontTableCacheEntry *fTableCache;
40     le_int32 fTableCacheCurr;
41     le_int32 fTableCacheSize;
42 };
43 
44 #endif
45 
46