icuSources/layout/GlyphLookupTables.cpp

   1 /*
   2  *
   3  * (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved
   4  *
   5  */
   6
   7 #include "LETypes.h"
   8 #include "OpenTypeTables.h"
   9 #include "ScriptAndLanguage.h"
  10 #include "GlyphLookupTables.h"
  11 #include "LESwaps.h"
  12
  13 U_NAMESPACE_BEGIN
  14
  15 le_bool GlyphLookupTableHeader::coversScript(LETag scriptTag) const
  16 {
  17     const ScriptListTable *scriptListTable = (const ScriptListTable *) ((char *)this + SWAPW(scriptListOffset));
  18
  19     return scriptListOffset != 0 && scriptListTable->findScript(scriptTag) != NULL;
  20 }
  21
  22 le_bool GlyphLookupTableHeader::coversScriptAndLanguage(LETag scriptTag, LETag languageTag, le_bool exactMatch) const
  23 {
  24     const ScriptListTable *scriptListTable = (const ScriptListTable *) ((char *)this + SWAPW(scriptListOffset));
  25     const LangSysTable    *langSysTable    = scriptListTable->findLanguage(scriptTag, languageTag, exactMatch);
  26
  27     // FIXME: could check featureListOffset, lookupListOffset, and lookup count...
  28     // Note: don't have to SWAPW langSysTable->featureCount to check for non-zero.
  29     return langSysTable != NULL && langSysTable->featureCount != 0;
  30 }
  31
  32 U_NAMESPACE_END