icuSources/layout/GlyphLookupTables.cpp

   1 /*
   2  *
   3  * (C) Copyright IBM Corp. 1998-2013 - 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(const LETableReference &base, LETag scriptTag, LEErrorCode &success) const
  16 {
  17   LEReferenceTo<ScriptListTable> scriptListTable(base, success, SWAPW(scriptListOffset));
  18
  19   return (scriptListOffset != 0) && scriptListTable->findScript(scriptListTable, scriptTag, success) .isValid();
  20 }
  21
  22 le_bool GlyphLookupTableHeader::coversScriptAndLanguage(const LETableReference &base, LETag scriptTag, LETag languageTag, LEErrorCode &success, le_bool exactMatch) const
  23 {
  24   LEReferenceTo<ScriptListTable> scriptListTable(base, success, SWAPW(scriptListOffset));
  25   LEReferenceTo<LangSysTable> langSysTable = scriptListTable->findLanguage(scriptListTable,
  26                                     scriptTag, languageTag, success, exactMatch);
  27
  28     // FIXME: could check featureListOffset, lookupListOffset, and lookup count...
  29     // Note: don't have to SWAPW langSysTable->featureCount to check for non-zero.
  30   return LE_SUCCESS(success)&&langSysTable.isValid() && langSysTable->featureCount != 0;
  31 }
  32
  33 U_NAMESPACE_END