1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/textandloc/fontservices/textshaperplugin/IcuSource/layout/GlyphPosnLookupProc.cpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,151 @@
     1.4 +/*
     1.5 + *
     1.6 + * (C) Copyright IBM Corp. 1998 - 2004 - All Rights Reserved
     1.7 + *
     1.8 + */
     1.9 +
    1.10 +#include "LETypes.h"
    1.11 +#include "LEFontInstance.h"
    1.12 +#include "OpenTypeTables.h"
    1.13 +#include "Features.h"
    1.14 +#include "Lookups.h"
    1.15 +#include "ScriptAndLanguage.h"
    1.16 +#include "GlyphDefinitionTables.h"
    1.17 +#include "GlyphPositioningTables.h"
    1.18 +#include "SinglePositioningSubtables.h"
    1.19 +#include "PairPositioningSubtables.h"
    1.20 +#include "CursiveAttachmentSubtables.h"
    1.21 +#include "MarkToBasePosnSubtables.h"
    1.22 +#include "MarkToLigaturePosnSubtables.h"
    1.23 +#include "MarkToMarkPosnSubtables.h"
    1.24 +//#include "ContextualPositioningSubtables.h"
    1.25 +#include "ContextualSubstSubtables.h"
    1.26 +#include "ExtensionSubtables.h"
    1.27 +#include "LookupProcessor.h"
    1.28 +#include "GlyphPosnLookupProc.h"
    1.29 +#include "LESwaps.h"
    1.30 +
    1.31 +U_NAMESPACE_BEGIN
    1.32 +
    1.33 +// Aside from the names, the contextual positioning subtables are
    1.34 +// the same as the contextual substitution subtables.
    1.35 +typedef ContextualSubstitutionSubtable ContextualPositioningSubtable;
    1.36 +typedef ChainingContextualSubstitutionSubtable ChainingContextualPositioningSubtable;
    1.37 +
    1.38 +GlyphPositioningLookupProcessor::GlyphPositioningLookupProcessor(
    1.39 +        const GlyphPositioningTableHeader *glyphPositioningTableHeader,
    1.40 +        LETag scriptTag, LETag languageTag, const LETag *featureOrder)
    1.41 +    : LookupProcessor(
    1.42 +                      (char *) glyphPositioningTableHeader,
    1.43 +                      SWAPW(glyphPositioningTableHeader->scriptListOffset),
    1.44 +                      SWAPW(glyphPositioningTableHeader->featureListOffset),
    1.45 +                      SWAPW(glyphPositioningTableHeader->lookupListOffset),
    1.46 +                      scriptTag, languageTag, featureOrder)
    1.47 +{
    1.48 +    // anything?
    1.49 +}
    1.50 +
    1.51 +GlyphPositioningLookupProcessor::GlyphPositioningLookupProcessor()
    1.52 +{
    1.53 +}
    1.54 +
    1.55 +le_uint32 GlyphPositioningLookupProcessor::applySubtable(
    1.56 +    const LookupSubtable *lookupSubtable, le_uint16 lookupType,
    1.57 +    GlyphIterator *glyphIterator, const LEFontInstance *fontInstance,
    1.58 +    LEErrorCode& success) const
    1.59 +{
    1.60 +    if (LE_FAILURE(success)) {
    1.61 +        return 0;
    1.62 +    }
    1.63 +
    1.64 +    le_uint32 delta = 0;
    1.65 +
    1.66 +    switch(lookupType)
    1.67 +    {
    1.68 +    case 0:
    1.69 +        break;
    1.70 +
    1.71 +    case gpstSingle:
    1.72 +    {
    1.73 +        const SinglePositioningSubtable *subtable = (const SinglePositioningSubtable *) lookupSubtable;
    1.74 +
    1.75 +        delta = subtable->process(glyphIterator, fontInstance);
    1.76 +        break;
    1.77 +    }
    1.78 +
    1.79 +    case gpstPair:
    1.80 +    {
    1.81 +        const PairPositioningSubtable *subtable = (const PairPositioningSubtable *) lookupSubtable;
    1.82 +
    1.83 +        delta = subtable->process(glyphIterator, fontInstance);
    1.84 +        break;
    1.85 +    }
    1.86 +
    1.87 +    case gpstCursive:
    1.88 +    {
    1.89 +        const CursiveAttachmentSubtable *subtable = (const CursiveAttachmentSubtable *) lookupSubtable;
    1.90 +
    1.91 +        delta = subtable->process(glyphIterator, fontInstance);
    1.92 +        break;
    1.93 +    }
    1.94 +
    1.95 +    case gpstMarkToBase:
    1.96 +    {
    1.97 +        const MarkToBasePositioningSubtable *subtable = (const MarkToBasePositioningSubtable *) lookupSubtable;
    1.98 +
    1.99 +        delta = subtable->process(glyphIterator, fontInstance);
   1.100 +        break;
   1.101 +    }
   1.102 +
   1.103 +     case gpstMarkToLigature:
   1.104 +    {
   1.105 +        const MarkToLigaturePositioningSubtable *subtable = (const MarkToLigaturePositioningSubtable *) lookupSubtable;
   1.106 +
   1.107 +        delta = subtable->process(glyphIterator, fontInstance);
   1.108 +        break;
   1.109 +    }
   1.110 +
   1.111 +    case gpstMarkToMark:
   1.112 +    {
   1.113 +        const MarkToMarkPositioningSubtable *subtable = (const MarkToMarkPositioningSubtable *) lookupSubtable;
   1.114 +
   1.115 +        delta = subtable->process(glyphIterator, fontInstance);
   1.116 +        break;
   1.117 +    }
   1.118 +
   1.119 +   case gpstContext:
   1.120 +    {
   1.121 +        const ContextualPositioningSubtable *subtable = (const ContextualPositioningSubtable *) lookupSubtable;
   1.122 +
   1.123 +        delta = subtable->process(this, glyphIterator, fontInstance, success);
   1.124 +        break;
   1.125 +    }
   1.126 +
   1.127 +    case gpstChainedContext:
   1.128 +    {
   1.129 +        const ChainingContextualPositioningSubtable *subtable = (const ChainingContextualPositioningSubtable *) lookupSubtable;
   1.130 +
   1.131 +        delta = subtable->process(this, glyphIterator, fontInstance, success);
   1.132 +        break;
   1.133 +    }
   1.134 +
   1.135 +    case gpstExtension:
   1.136 +    {
   1.137 +        const ExtensionSubtable *subtable = (const ExtensionSubtable *) lookupSubtable;
   1.138 +
   1.139 +        delta = subtable->process(this, lookupType, glyphIterator, fontInstance, success);
   1.140 +        break;
   1.141 +    }
   1.142 +
   1.143 +    default:
   1.144 +        break;
   1.145 +    }
   1.146 +
   1.147 +    return delta;
   1.148 +}
   1.149 +
   1.150 +GlyphPositioningLookupProcessor::~GlyphPositioningLookupProcessor()
   1.151 +{
   1.152 +}
   1.153 +
   1.154 +U_NAMESPACE_END