87 lines
2.2 KiB
C++
87 lines
2.2 KiB
C++
/*
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* @(#)SinglePositioningSubtables.cpp 1.8 00/03/15
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*
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* (C) Copyright IBM Corp. 1998-2003 - All Rights Reserved
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*
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*/
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#include "LETypes.h"
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#include "LEFontInstance.h"
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#include "OpenTypeTables.h"
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#include "GlyphPositioningTables.h"
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#include "SinglePositioningSubtables.h"
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#include "ValueRecords.h"
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#include "GlyphIterator.h"
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#include "GlyphPositionAdjustments.h"
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#include "LESwaps.h"
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U_NAMESPACE_BEGIN
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le_uint32 SinglePositioningSubtable::process(GlyphIterator *glyphIterator, const LEFontInstance *fontInstance) const
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{
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switch(SWAPW(subtableFormat))
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{
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case 0:
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return 0;
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case 1:
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{
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const SinglePositioningFormat1Subtable *subtable = (const SinglePositioningFormat1Subtable *) this;
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return subtable->process(glyphIterator, fontInstance);
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}
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case 2:
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{
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const SinglePositioningFormat2Subtable *subtable = (const SinglePositioningFormat2Subtable *) this;
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return subtable->process(glyphIterator, fontInstance);
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}
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default:
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return 0;
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}
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}
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le_uint32 SinglePositioningFormat1Subtable::process(GlyphIterator *glyphIterator, const LEFontInstance *fontInstance) const
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{
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LEGlyphID glyph = glyphIterator->getCurrGlyphID();
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le_int32 coverageIndex = getGlyphCoverage(glyph);
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if (coverageIndex >= 0) {
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GlyphPositionAdjustment adjustment;
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glyphIterator->getCurrGlyphPositionAdjustment(adjustment);
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valueRecord.adjustPosition(SWAPW(valueFormat), (const char *) this, adjustment, fontInstance);
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glyphIterator->setCurrGlyphPositionAdjustment(&adjustment);
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return 1;
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}
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return 0;
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}
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le_uint32 SinglePositioningFormat2Subtable::process(GlyphIterator *glyphIterator, const LEFontInstance *fontInstance) const
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{
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LEGlyphID glyph = glyphIterator->getCurrGlyphID();
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le_int16 coverageIndex = (le_int16) getGlyphCoverage(glyph);
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if (coverageIndex >= 0) {
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GlyphPositionAdjustment adjustment;
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glyphIterator->getCurrGlyphPositionAdjustment(adjustment);
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valueRecordArray[0].adjustPosition(coverageIndex, SWAPW(valueFormat), (const char *) this, adjustment, fontInstance);
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glyphIterator->setCurrGlyphPositionAdjustment(&adjustment);
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return 1;
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}
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return 0;
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}
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U_NAMESPACE_END
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