icuSources/layout/LEGlyphFilter.h

   1 /*
   2  *
   3  * (C) Copyright IBM Corp. 1998-2011 - All Rights Reserved
   4  *
   5  */
   6
   7 #ifndef __LEGLYPHFILTER__H
   8 #define __LEGLYPHFILTER__H
   9
  10 #include "LETypes.h"
  11
  12 U_NAMESPACE_BEGIN
  13
  14 #ifndef U_HIDE_INTERNAL_API
  15 /**
  16  * This is a helper class that is used to
  17  * recognize a set of glyph indices.
  18  *
  19  * @internal
  20  */
  21 class LEGlyphFilter /* not : public UObject because this is an interface/mixin class */ {
  22 public:
  23     /**
  24      * Destructor.
  25      * @internal
  26      */
  27     virtual ~LEGlyphFilter();
  28
  29     /**
  30      * This method is used to test a particular
  31      * glyph index to see if it is in the set
  32      * recognized by the filter.
  33      *
  34      * @param glyph - the glyph index to be tested
  35      *
  36      * @return TRUE if the glyph index is in the set.
  37      *
  38      * @internal
  39      */
  40     virtual le_bool accept(LEGlyphID glyph) const = 0;
  41 };
  42 #endif  /* U_HIDE_INTERNAL_API */
  43
  44 U_NAMESPACE_END
  45 #endif