scuffed-code/icu4c/source/layout/MultipleSubstSubtables.cpp
2000-12-21 20:01:18 +00:00

41 lines
1.1 KiB
C++

/*
* %W% %E%
*
* (C) Copyright IBM Corp. 1998, 1999, 2000 - All Rights Reserved
*
*/
#include "LETypes.h"
#include "LEGlyphFilter.h"
#include "OpenTypeTables.h"
#include "GlyphSubstitutionTables.h"
#include "MultipleSubstitutionSubtables.h"
#include "GlyphIterator.h"
#include "LESwaps.h"
le_uint32 MultipleSubstitutionSubtable::process(GlyphIterator *glyphIterator, LEGlyphFilter *filter)
{
LEGlyphID glyph = (LEGlyphID) glyphIterator->getCurrGlyphID();
le_int32 coverageIndex = getGlyphCoverage(glyph);
le_uint16 seqCount = SWAPW(sequenceCount);
if (coverageIndex >= 0 && coverageIndex < seqCount)
{
Offset sequenceTableOffset = SWAPW(sequenceTableOffsetArray[coverageIndex]);
SequenceTable *sequenceTable = (SequenceTable *) ((char *) this + sequenceTableOffset);
le_uint16 glyphCount = SWAPW(sequenceTable->glyphCount);
if (glyphCount == 0) {
glyphIterator->setCurrGlyphID(0xFFFF);
return 1;
}
else {
// Can't do this 'till there's a way to
// grow the glyph array...
return 1;
}
}
return 0;
}