0N/A/*
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
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0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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0N/A *
0N/A */
0N/A
0N/A/*
0N/A *
0N/A * (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved
0N/A *
0N/A */
0N/A
0N/A#include "LETypes.h"
0N/A#include "LEGlyphFilter.h"
0N/A#include "OpenTypeTables.h"
0N/A#include "GlyphSubstitutionTables.h"
0N/A#include "AlternateSubstSubtables.h"
0N/A#include "GlyphIterator.h"
0N/A#include "LESwaps.h"
0N/A
1693N/AU_NAMESPACE_BEGIN
1693N/A
5980N/Ale_uint32 AlternateSubstitutionSubtable::process(const LEReferenceTo<AlternateSubstitutionSubtable> &base,
5980N/A GlyphIterator *glyphIterator, LEErrorCode &success, const LEGlyphFilter *filter) const
0N/A{
0N/A // NOTE: For now, we'll just pick the first alternative...
0N/A LEGlyphID glyph = glyphIterator->getCurrGlyphID();
5980N/A le_int32 coverageIndex = getGlyphCoverage(base, glyph, success);
0N/A
5980N/A if (coverageIndex >= 0 && LE_SUCCESS(success)) {
0N/A le_uint16 altSetCount = SWAPW(alternateSetCount);
0N/A
0N/A if (coverageIndex < altSetCount) {
0N/A Offset alternateSetTableOffset = SWAPW(alternateSetTableOffsetArray[coverageIndex]);
5980N/A const LEReferenceTo<AlternateSetTable> alternateSetTable(base, success,
5980N/A (const AlternateSetTable *) ((char *) this + alternateSetTableOffset));
0N/A TTGlyphID alternate = SWAPW(alternateSetTable->alternateArray[0]);
0N/A
0N/A if (filter == NULL || filter->accept(LE_SET_GLYPH(glyph, alternate))) {
0N/A glyphIterator->setCurrGlyphID(SWAPW(alternateSetTable->alternateArray[0]));
0N/A }
0N/A
0N/A return 1;
0N/A }
0N/A
0N/A // XXXX If we get here, the table's mal-formed...
0N/A }
0N/A
0N/A return 0;
0N/A}
1693N/A
1693N/AU_NAMESPACE_END