59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
// Copyright (C) 2016 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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/*
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* (C) Copyright IBM Corp. 1998 - 2015 - All Rights Reserved
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*
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*/
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#include "LETypes.h"
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#include "OpenTypeTables.h"
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#include "GlyphPositioningTables.h"
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#include "CursiveAttachmentSubtables.h"
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#include "AnchorTables.h"
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#include "GlyphIterator.h"
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#include "OpenTypeUtilities.h"
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#include "LESwaps.h"
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U_NAMESPACE_BEGIN
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le_uint32 CursiveAttachmentSubtable::process(const LEReferenceTo<CursiveAttachmentSubtable> &base, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode &success) const
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{
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LEGlyphID glyphID = glyphIterator->getCurrGlyphID();
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le_int32 coverageIndex = getGlyphCoverage(base, glyphID, success);
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le_uint16 eeCount = SWAPW(entryExitCount);
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LEReferenceToArrayOf<EntryExitRecord>
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entryExitRecordsArrayRef(base, success, entryExitRecords, coverageIndex);
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if (coverageIndex < 0 || coverageIndex >= eeCount || LE_FAILURE(success)) {
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glyphIterator->setCursiveGlyph();
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return 0;
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}
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LEPoint entryAnchor, exitAnchor;
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Offset entryOffset = SWAPW(entryExitRecords[coverageIndex].entryAnchor);
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Offset exitOffset = SWAPW(entryExitRecords[coverageIndex].exitAnchor);
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if (entryOffset != 0) {
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const AnchorTable *entryAnchorTable = (const AnchorTable *) ((char *) this + entryOffset);
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entryAnchorTable->getAnchor(glyphID, fontInstance, entryAnchor);
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glyphIterator->setCursiveEntryPoint(entryAnchor);
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} else {
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//glyphIterator->clearCursiveEntryPoint();
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}
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if (exitOffset != 0) {
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const AnchorTable *exitAnchorTable = (const AnchorTable *) ((char *) this + exitOffset);
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exitAnchorTable->getAnchor(glyphID, fontInstance, exitAnchor);
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glyphIterator->setCursiveExitPoint(exitAnchor);
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} else {
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//glyphIterator->clearCursiveExitPoint();
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}
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return 1;
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}
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U_NAMESPACE_END
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