Mercurial > hg > openjdk > jigsaw > jdk
view src/share/native/sun/font/layout/GlyphPosnLookupProc.cpp @ 7317:32778f4f945f
8001031: Better font processing
Reviewed-by: srl, vadim
author | prr |
---|---|
date | Thu, 07 Mar 2013 10:02:20 -0800 |
parents | 1d4340015b85 |
children |
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/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ /* * (C) Copyright IBM Corp. 1998 - 2005 - All Rights Reserved * */ #include "LETypes.h" #include "LEFontInstance.h" #include "OpenTypeTables.h" #include "ICUFeatures.h" #include "Lookups.h" #include "ScriptAndLanguage.h" #include "GlyphDefinitionTables.h" #include "GlyphPositioningTables.h" #include "SinglePositioningSubtables.h" #include "PairPositioningSubtables.h" #include "CursiveAttachmentSubtables.h" #include "MarkToBasePosnSubtables.h" #include "MarkToLigaturePosnSubtables.h" #include "MarkToMarkPosnSubtables.h" //#include "ContextualPositioningSubtables.h" #include "ContextualSubstSubtables.h" #include "ExtensionSubtables.h" #include "LookupProcessor.h" #include "GlyphPosnLookupProc.h" #include "LESwaps.h" U_NAMESPACE_BEGIN // Aside from the names, the contextual positioning subtables are // the same as the contextual substitution subtables. typedef ContextualSubstitutionSubtable ContextualPositioningSubtable; typedef ChainingContextualSubstitutionSubtable ChainingContextualPositioningSubtable; GlyphPositioningLookupProcessor::GlyphPositioningLookupProcessor( const LEReferenceTo<GlyphPositioningTableHeader> &glyphPositioningTableHeader, LETag scriptTag, LETag languageTag, const FeatureMap *featureMap, le_int32 featureMapCount, le_bool featureOrder, LEErrorCode& success) : LookupProcessor( glyphPositioningTableHeader, SWAPW(glyphPositioningTableHeader->scriptListOffset), SWAPW(glyphPositioningTableHeader->featureListOffset), SWAPW(glyphPositioningTableHeader->lookupListOffset), scriptTag, languageTag, featureMap, featureMapCount, featureOrder, success ) { // anything? } GlyphPositioningLookupProcessor::GlyphPositioningLookupProcessor() { } le_uint32 GlyphPositioningLookupProcessor::applySubtable(const LEReferenceTo<LookupSubtable> &lookupSubtable, le_uint16 lookupType, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode& success) const { if (LE_FAILURE(success)) { return 0; } le_uint32 delta = 0; switch(lookupType) { case 0: break; case gpstSingle: { LEReferenceTo<SinglePositioningSubtable> subtable(lookupSubtable, success); delta = subtable->process(subtable, glyphIterator, fontInstance, success); break; } case gpstPair: { LEReferenceTo<PairPositioningSubtable> subtable(lookupSubtable, success); delta = subtable->process(subtable, glyphIterator, fontInstance, success); break; } case gpstCursive: { LEReferenceTo<CursiveAttachmentSubtable> subtable(lookupSubtable, success); delta = subtable->process(subtable, glyphIterator, fontInstance, success); break; } case gpstMarkToBase: { LEReferenceTo<MarkToBasePositioningSubtable> subtable(lookupSubtable, success); delta = subtable->process(subtable, glyphIterator, fontInstance, success); break; } case gpstMarkToLigature: { LEReferenceTo<MarkToLigaturePositioningSubtable> subtable(lookupSubtable, success); delta = subtable->process(subtable, glyphIterator, fontInstance, success); break; } case gpstMarkToMark: { LEReferenceTo<MarkToMarkPositioningSubtable> subtable(lookupSubtable, success); delta = subtable->process(subtable, glyphIterator, fontInstance, success); break; } case gpstContext: { LEReferenceTo<ContextualPositioningSubtable> subtable(lookupSubtable, success); delta = subtable->process(this, glyphIterator, fontInstance, success); break; } case gpstChainedContext: { LEReferenceTo<ChainingContextualPositioningSubtable> subtable(lookupSubtable, success); delta = subtable->process(this, glyphIterator, fontInstance, success); break; } case gpstExtension: { LEReferenceTo<ExtensionSubtable> subtable(lookupSubtable, success); delta = subtable->process(this, lookupType, glyphIterator, fontInstance, success); break; } default: break; } return delta; } GlyphPositioningLookupProcessor::~GlyphPositioningLookupProcessor() { } U_NAMESPACE_END