1/*
2 *
3 * (C) Copyright IBM Corp. 1998-2013 - All Rights Reserved
4 *
5 */
6
7#include "LETypes.h"
8#include "LEFontInstance.h"
9#include "OpenTypeTables.h"
10#include "GlyphPositioningTables.h"
11#include "SinglePositioningSubtables.h"
12#include "ValueRecords.h"
13#include "GlyphIterator.h"
14#include "LESwaps.h"
15
16U_NAMESPACE_BEGIN
17
18le_uint32 SinglePositioningSubtable::process(const LEReferenceTo<SinglePositioningSubtable> &base, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode &success) const
19{
20    switch(SWAPW(subtableFormat))
21    {
22    case 0:
23        return 0;
24
25    case 1:
26    {
27      const LEReferenceTo<SinglePositioningFormat1Subtable> subtable(base, success, (const SinglePositioningFormat1Subtable *) this);
28
29      return subtable->process(subtable, glyphIterator, fontInstance, success);
30    }
31
32    case 2:
33    {
34      const LEReferenceTo<SinglePositioningFormat2Subtable> subtable(base, success, (const SinglePositioningFormat2Subtable *) this);
35
36      return subtable->process(subtable, glyphIterator, fontInstance, success);
37    }
38
39    default:
40        return 0;
41    }
42}
43
44le_uint32 SinglePositioningFormat1Subtable::process(const LEReferenceTo<SinglePositioningFormat1Subtable> &base, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode &success) const
45{
46    LEGlyphID glyph = glyphIterator->getCurrGlyphID();
47    le_int32 coverageIndex = getGlyphCoverage(base, glyph, success);
48
49    if (coverageIndex >= 0) {
50        valueRecord.adjustPosition(SWAPW(valueFormat), (const char *) this, *glyphIterator, fontInstance);
51
52        return 1;
53    }
54
55    return 0;
56}
57
58le_uint32 SinglePositioningFormat2Subtable::process(const LEReferenceTo<SinglePositioningFormat2Subtable> &base, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode &success) const
59{
60    LEGlyphID glyph = glyphIterator->getCurrGlyphID();
61    le_int16 coverageIndex = (le_int16) getGlyphCoverage(base, glyph, success);
62
63    if (coverageIndex >= 0) {
64        valueRecordArray[0].adjustPosition(coverageIndex, SWAPW(valueFormat), (const char *) this, *glyphIterator, fontInstance);
65
66        return 1;
67    }
68
69    return 0;
70}
71
72U_NAMESPACE_END
73