icuSources/samples/layout/FontTableCache.h

   1 /*
   2  **********************************************************************
   3  *   Copyright (C) 2003-2008, International Business Machines
   4  *   Corporation and others.  All Rights Reserved.
   5  **********************************************************************
   6  */
   7
   8 #ifndef __FONTTABLECACHE_H
   9
  10 #define __FONTTABLECACHE_H
  11
  12 #include "layout/LETypes.h"
  13
  14 struct FontTableCacheEntry;
  15
  16 class FontTableCache
  17 {
  18 public:
  19     FontTableCache();
  20
  21     virtual ~FontTableCache();
  22
  23     const void *find(LETag tableTag) const;
  24
  25 protected:
  26     virtual const void *readFontTable(LETag tableTag) const = 0;
  27     virtual void freeFontTable(const void *table) const;
  28
  29 private:
  30
  31     void add(LETag tableTag, const void *table);
  32
  33     FontTableCacheEntry *fTableCache;
  34     le_int32 fTableCacheCurr;
  35     le_int32 fTableCacheSize;
  36 };
  37
  38 #endif
  39