icuSources/layout/TrimmedArrayProcessor.cpp

   1 /*
   2  * @(#)TrimmedArrayProcessor.cpp        1.6 00/03/15
   3  *
   4  * (C) Copyright IBM Corp. 1998-2003 - All Rights Reserved
   5  *
   6  */
   7
   8 #include "LETypes.h"
   9 #include "MorphTables.h"
  10 #include "SubtableProcessor.h"
  11 #include "NonContextualGlyphSubst.h"
  12 #include "NonContextualGlyphSubstProc.h"
  13 #include "TrimmedArrayProcessor.h"
  14 #include "LESwaps.h"
  15
  16 U_NAMESPACE_BEGIN
  17
  18 const char TrimmedArrayProcessor::fgClassID=0;
  19
  20 TrimmedArrayProcessor::TrimmedArrayProcessor()
  21 {
  22 }
  23
  24 TrimmedArrayProcessor::TrimmedArrayProcessor(const MorphSubtableHeader *morphSubtableHeader)
  25   : NonContextualGlyphSubstitutionProcessor(morphSubtableHeader)
  26 {
  27     const NonContextualGlyphSubstitutionHeader *header = (const NonContextualGlyphSubstitutionHeader *) morphSubtableHeader;
  28
  29     trimmedArrayLookupTable = (const TrimmedArrayLookupTable *) &header->table;
  30     firstGlyph = SWAPW(trimmedArrayLookupTable->firstGlyph);
  31     lastGlyph = firstGlyph + SWAPW(trimmedArrayLookupTable->glyphCount);
  32 }
  33
  34 TrimmedArrayProcessor::~TrimmedArrayProcessor()
  35 {
  36 }
  37
  38 void TrimmedArrayProcessor::process(LEGlyphID *glyphs, le_int32 * /*charIndices*/, le_int32 glyphCount)
  39 {
  40     le_int32 glyph;
  41
  42     for (glyph = 0; glyph < glyphCount; glyph += 1) {
  43         TTGlyphID ttGlyph = (TTGlyphID) LE_GET_GLYPH(glyphs[glyph]);
  44
  45         if ((ttGlyph > firstGlyph) && (ttGlyph < lastGlyph)) {
  46             TTGlyphID newGlyph = SWAPW(trimmedArrayLookupTable->valueArray[ttGlyph - firstGlyph]);
  47
  48             glyphs[glyph] = LE_SET_GLYPH(glyphs[glyph], newGlyph);
  49         }
  50     }
  51 }
  52
  53 U_NAMESPACE_END