icuSources/layout/Lookups.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 "Lookups.h"
  10 #include "CoverageTables.h"
  11 #include "LESwaps.h"
  12
  13 U_NAMESPACE_BEGIN
  14
  15 const LookupTable *LookupListTable::getLookupTable(le_uint16 lookupTableIndex) const
  16 {
  17     if (lookupTableIndex >= SWAPW(lookupCount)) {
  18         return 0;
  19     }
  20
  21     Offset lookupTableOffset = lookupTableOffsetArray[lookupTableIndex];
  22
  23     return (const LookupTable *) ((char *) this + SWAPW(lookupTableOffset));
  24 }
  25
  26 const LookupSubtable *LookupTable::getLookupSubtable(le_uint16 subtableIndex) const
  27 {
  28     if (subtableIndex >= SWAPW(subTableCount)) {
  29         return 0;
  30     }
  31
  32     Offset subtableOffset = subTableOffsetArray[subtableIndex];
  33
  34     return (const LookupSubtable *) ((char *) this + SWAPW(subtableOffset));
  35 }
  36
  37 le_int32 LookupSubtable::getGlyphCoverage(Offset tableOffset, LEGlyphID glyphID) const
  38 {
  39     const CoverageTable *coverageTable = (const CoverageTable *) ((char *) this + SWAPW(tableOffset));
  40
  41     return coverageTable->getGlyphCoverage(glyphID);
  42 }
  43
  44 U_NAMESPACE_END