| /* |
| * |
| * (C) Copyright IBM Corp. 1998-2013 - All Rights Reserved |
| * |
| */ |
| |
| #include "LETypes.h" |
| #include "LEGlyphFilter.h" |
| #include "OpenTypeTables.h" |
| #include "GlyphSubstitutionTables.h" |
| #include "SingleSubstitutionSubtables.h" |
| #include "GlyphIterator.h" |
| #include "LESwaps.h" |
| |
| U_NAMESPACE_BEGIN |
| |
| le_uint32 SingleSubstitutionSubtable::process(const LEReferenceTo<SingleSubstitutionSubtable> &base, GlyphIterator *glyphIterator, LEErrorCode &success, const LEGlyphFilter *filter) const |
| { |
| switch(SWAPW(subtableFormat)) |
| { |
| case 0: |
| return 0; |
| |
| case 1: |
| { |
| const LEReferenceTo<SingleSubstitutionFormat1Subtable> subtable(base, success, (const SingleSubstitutionFormat1Subtable *) this); |
| |
| return subtable->process(subtable, glyphIterator, success, filter); |
| } |
| |
| case 2: |
| { |
| const LEReferenceTo<SingleSubstitutionFormat2Subtable> subtable(base, success, (const SingleSubstitutionFormat2Subtable *) this); |
| |
| return subtable->process(subtable, glyphIterator, success, filter); |
| } |
| |
| default: |
| return 0; |
| } |
| } |
| |
| le_uint32 SingleSubstitutionFormat1Subtable::process(const LEReferenceTo<SingleSubstitutionFormat1Subtable> &base, GlyphIterator *glyphIterator, LEErrorCode &success, const LEGlyphFilter *filter) const |
| { |
| LEGlyphID glyph = glyphIterator->getCurrGlyphID(); |
| le_int32 coverageIndex = getGlyphCoverage(base, glyph, success); |
| |
| if (coverageIndex >= 0) { |
| TTGlyphID substitute = ((TTGlyphID) LE_GET_GLYPH(glyph)) + SWAPW(deltaGlyphID); |
| |
| if (filter == NULL || filter->accept(LE_SET_GLYPH(glyph, substitute))) { |
| glyphIterator->setCurrGlyphID(substitute); |
| } |
| |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| le_uint32 SingleSubstitutionFormat2Subtable::process(const LEReferenceTo<SingleSubstitutionFormat2Subtable> &base, GlyphIterator *glyphIterator, LEErrorCode &success, const LEGlyphFilter *filter) const |
| { |
| LEGlyphID glyph = glyphIterator->getCurrGlyphID(); |
| le_int32 coverageIndex = getGlyphCoverage(base, glyph, success); |
| |
| if (coverageIndex >= 0) { |
| TTGlyphID substitute = SWAPW(substituteArray[coverageIndex]); |
| |
| if (filter == NULL || filter->accept(LE_SET_GLYPH(glyph, substitute))) { |
| glyphIterator->setCurrGlyphID(substitute); |
| } |
| |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| U_NAMESPACE_END |