1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/textandloc/fontservices/textshaperplugin/IcuSource/layout/Features.cpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,61 @@
     1.4 +/*
     1.5 + * @(#)Features.cpp 1.4 00/03/15
     1.6 + *
     1.7 + * (C) Copyright IBM Corp. 1998-2003 - All Rights Reserved
     1.8 + *
     1.9 + */
    1.10 +
    1.11 +#include "LETypes.h"
    1.12 +#include "OpenTypeUtilities.h"
    1.13 +#include "OpenTypeTables.h"
    1.14 +#include "Features.h"
    1.15 +#include "LESwaps.h"
    1.16 +
    1.17 +U_NAMESPACE_BEGIN
    1.18 +
    1.19 +const FeatureTable *FeatureListTable::getFeatureTable(le_uint16 featureIndex, LETag *featureTag) const
    1.20 +{
    1.21 +    if (featureIndex >= SWAPW(featureCount)) {
    1.22 +        return 0;
    1.23 +    }
    1.24 +
    1.25 +    Offset featureTableOffset = featureRecordArray[featureIndex].featureTableOffset;
    1.26 +
    1.27 +    *featureTag = SWAPT(featureRecordArray[featureIndex].featureTag);
    1.28 +
    1.29 +    return (const FeatureTable *) ((char *) this + SWAPW(featureTableOffset));
    1.30 +}
    1.31 +
    1.32 +/*
    1.33 + * Note: according to the OpenType Spec. v 1.4, the entries in the Feature
    1.34 + * List Table are sorted alphabetically by feature tag; however, there seem
    1.35 + * to be some fonts which have an unsorted list; that's why the binary search
    1.36 + * is #if 0'd out and replaced by a linear search.
    1.37 + *
    1.38 + * Also note: as of ICU 2.6, this method isn't called anyhow...
    1.39 + */
    1.40 +const FeatureTable *FeatureListTable::getFeatureTable(LETag featureTag) const
    1.41 +{
    1.42 +#if 0
    1.43 +    Offset featureTableOffset =
    1.44 +        OpenTypeUtilities::getTagOffset(featureTag, (TagAndOffsetRecord *) featureRecordArray, SWAPW(featureCount));
    1.45 +
    1.46 +    if (featureTableOffset == 0) {
    1.47 +        return 0;
    1.48 +    }
    1.49 +
    1.50 +    return (const FeatureTable *) ((char *) this + SWAPW(featureTableOffset));
    1.51 +#else
    1.52 +    int count = SWAPW(featureCount);
    1.53 +    
    1.54 +    for (int i = 0; i < count; i += 1) {
    1.55 +        if (SWAPT(featureRecordArray[i].featureTag) == featureTag) {
    1.56 +            return (const FeatureTable *) ((char *) this + SWAPW(featureRecordArray[i].featureTableOffset));
    1.57 +        }
    1.58 +    }
    1.59 +
    1.60 +    return 0;
    1.61 +#endif
    1.62 +}
    1.63 +
    1.64 +U_NAMESPACE_END