1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/textandloc/fontservices/textshaperplugin/IcuSource/layout/MorphTables.cpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,96 @@
     1.4 +/*
     1.5 + * %W% %W%
     1.6 + *
     1.7 + * (C) Copyright IBM Corp. 1998 - 2004 - All Rights Reserved
     1.8 + *
     1.9 + */
    1.10 +
    1.11 +
    1.12 +#include "LETypes.h"
    1.13 +#include "LayoutTables.h"
    1.14 +#include "MorphTables.h"
    1.15 +#include "SubtableProcessor.h"
    1.16 +#include "IndicRearrangementProcessor.h"
    1.17 +#include "ContextualGlyphSubstProc.h"
    1.18 +#include "LigatureSubstProc.h"
    1.19 +#include "NonContextualGlyphSubstProc.h"
    1.20 +//#include "ContextualGlyphInsertionProcessor.h"
    1.21 +#include "LEGlyphStorage.h"
    1.22 +#include "LESwaps.h"
    1.23 +
    1.24 +U_NAMESPACE_BEGIN
    1.25 +
    1.26 +void MorphTableHeader::process(LEGlyphStorage &glyphStorage) const
    1.27 +{
    1.28 +    const ChainHeader *chainHeader = chains;
    1.29 +    le_uint32 chainCount = SWAPL(this->nChains);
    1.30 +    le_uint32 chain;
    1.31 +
    1.32 +    for (chain = 0; chain < chainCount; chain += 1) {
    1.33 +        FeatureFlags defaultFlags = SWAPL(chainHeader->defaultFlags);
    1.34 +        le_uint32 chainLength = SWAPL(chainHeader->chainLength);
    1.35 +        le_int16 nFeatureEntries = SWAPW(chainHeader->nFeatureEntries);
    1.36 +        le_int16 nSubtables = SWAPW(chainHeader->nSubtables);
    1.37 +        const MorphSubtableHeader *subtableHeader =
    1.38 +            (const MorphSubtableHeader *)&chainHeader->featureTable[nFeatureEntries];
    1.39 +        le_int16 subtable;
    1.40 +
    1.41 +        for (subtable = 0; subtable < nSubtables; subtable += 1) {
    1.42 +            le_int16 length = SWAPW(subtableHeader->length);
    1.43 +            SubtableCoverage coverage = SWAPW(subtableHeader->coverage);
    1.44 +            FeatureFlags subtableFeatures = SWAPL(subtableHeader->subtableFeatures);
    1.45 +
    1.46 +            // should check coverage more carefully...
    1.47 +            if ((coverage & scfVertical) == 0 && (subtableFeatures & defaultFlags) != 0) {
    1.48 +                subtableHeader->process(glyphStorage);
    1.49 +            }
    1.50 +
    1.51 +            subtableHeader = (const MorphSubtableHeader *) ((char *)subtableHeader + length);
    1.52 +        }
    1.53 +
    1.54 +        chainHeader = (const ChainHeader *)((char *)chainHeader + chainLength);
    1.55 +    }
    1.56 +}
    1.57 +
    1.58 +void MorphSubtableHeader::process(LEGlyphStorage &glyphStorage) const
    1.59 +{
    1.60 +    SubtableProcessor *processor = NULL;
    1.61 +
    1.62 +    switch (SWAPW(coverage) & scfTypeMask)
    1.63 +    {
    1.64 +    case mstIndicRearrangement:
    1.65 +        processor = new IndicRearrangementProcessor(this);
    1.66 +        break;
    1.67 +
    1.68 +    case mstContextualGlyphSubstitution:
    1.69 +        processor = new ContextualGlyphSubstitutionProcessor(this);
    1.70 +        break;
    1.71 +
    1.72 +    case mstLigatureSubstitution:
    1.73 +        processor = new LigatureSubstitutionProcessor(this);
    1.74 +        break;
    1.75 +
    1.76 +    case mstReservedUnused:
    1.77 +        break;
    1.78 +
    1.79 +    case mstNonContextualGlyphSubstitution:
    1.80 +        processor = NonContextualGlyphSubstitutionProcessor::createInstance(this);
    1.81 +        break;
    1.82 +
    1.83 +    /*
    1.84 +    case mstContextualGlyphInsertion:
    1.85 +        processor = new ContextualGlyphInsertionProcessor(this);
    1.86 +        break;
    1.87 +    */
    1.88 +
    1.89 +    default:
    1.90 +        break;
    1.91 +    }
    1.92 +
    1.93 +    if (processor != NULL) {
    1.94 +        processor->process(glyphStorage);
    1.95 +        delete processor;
    1.96 +    }
    1.97 +}
    1.98 +
    1.99 +U_NAMESPACE_END