1 /*
2 * (C) Copyright IBM Corp. 1998 - 2015 - All Rights Reserved
3 *
4 */
5
6 #include "LETypes.h"
7 #include "OpenTypeTables.h"
8 #include "GlyphPositioningTables.h"
9 #include "CursiveAttachmentSubtables.h"
10 #include "AnchorTables.h"
11 #include "GlyphIterator.h"
12 #include "OpenTypeUtilities.h"
13 #include "LESwaps.h"
14
15 U_NAMESPACE_BEGIN
16
process(const LEReferenceTo<CursiveAttachmentSubtable> & base,GlyphIterator * glyphIterator,const LEFontInstance * fontInstance,LEErrorCode & success) const17 le_uint32 CursiveAttachmentSubtable::process(const LEReferenceTo<CursiveAttachmentSubtable> &base, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode &success) const
18 {
19 LEGlyphID glyphID = glyphIterator->getCurrGlyphID();
20 le_int32 coverageIndex = getGlyphCoverage(base, glyphID, success);
21 le_uint16 eeCount = SWAPW(entryExitCount);
22
23 LEReferenceToArrayOf<EntryExitRecord>
24 entryExitRecordsArrayRef(base, success, entryExitRecords, coverageIndex);
25
26 if (coverageIndex < 0 || coverageIndex >= eeCount || LE_FAILURE(success)) {
27 glyphIterator->setCursiveGlyph();
28 return 0;
29 }
30
31 LEPoint entryAnchor, exitAnchor;
32 Offset entryOffset = SWAPW(entryExitRecords[coverageIndex].entryAnchor);
33 Offset exitOffset = SWAPW(entryExitRecords[coverageIndex].exitAnchor);
34
35 if (entryOffset != 0) {
36 const AnchorTable *entryAnchorTable = (const AnchorTable *) ((char *) this + entryOffset);
37
38 entryAnchorTable->getAnchor(glyphID, fontInstance, entryAnchor);
39 glyphIterator->setCursiveEntryPoint(entryAnchor);
40 } else {
41 //glyphIterator->clearCursiveEntryPoint();
42 }
43
44 if (exitOffset != 0) {
45 const AnchorTable *exitAnchorTable = (const AnchorTable *) ((char *) this + exitOffset);
46
47 exitAnchorTable->getAnchor(glyphID, fontInstance, exitAnchor);
48 glyphIterator->setCursiveExitPoint(exitAnchor);
49 } else {
50 //glyphIterator->clearCursiveExitPoint();
51 }
52
53 return 1;
54 }
55
56 U_NAMESPACE_END
57