ICU-64232.0.1.tar.gz

[apple/icu.git] / icuSources / layout / MarkToLigaturePosnSubtables.cpp

diff --git a/icuSources/layout/MarkToLigaturePosnSubtables.cpp b/icuSources/layout/MarkToLigaturePosnSubtables.cpp
deleted file mode 100644 (file)
index f75d5f7..0000000
--- a/icuSources/layout/MarkToLigaturePosnSubtables.cpp
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * (C) Copyright IBM Corp. 1998-2013 - All Rights Reserved
- *
- */
-
-#include "LETypes.h"
-#include "LEFontInstance.h"
-#include "OpenTypeTables.h"
-#include "AnchorTables.h"
-#include "MarkArrays.h"
-#include "GlyphPositioningTables.h"
-#include "AttachmentPosnSubtables.h"
-#include "MarkToLigaturePosnSubtables.h"
-#include "GlyphIterator.h"
-#include "LESwaps.h"
-
-U_NAMESPACE_BEGIN
-
-LEGlyphID MarkToLigaturePositioningSubtable::findLigatureGlyph(GlyphIterator *glyphIterator) const
-{
-    if (glyphIterator->prev()) {
-        return glyphIterator->getCurrGlyphID();
-    }
-
-    return 0xFFFF;
-}
-
-le_int32 MarkToLigaturePositioningSubtable::process(const LETableReference &base, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode &success) const
-{
-    LEGlyphID markGlyph = glyphIterator->getCurrGlyphID();
-    le_int32 markCoverage = getGlyphCoverage(base, (LEGlyphID) markGlyph, success);
-
-    if (markCoverage < 0) {
-        // markGlyph isn't a covered mark glyph
-        return 0;
-    }
-
-    LEPoint markAnchor;
-    const MarkArray *markArray = (const MarkArray *) ((char *) this + SWAPW(markArrayOffset));
-    le_int32 markClass = markArray->getMarkClass(markGlyph, markCoverage, fontInstance, markAnchor);
-    le_uint16 mcCount = SWAPW(classCount);
-
-    if (markClass < 0 || markClass >= mcCount) {
-        // markGlyph isn't in the mark array or its
-        // mark class is too big. The table is mal-formed!
-        return 0;
-    }
-
-    // FIXME: we probably don't want to find a ligature before a previous base glyph...
-    GlyphIterator ligatureIterator(*glyphIterator, (le_uint16) (lfIgnoreMarks /*| lfIgnoreBaseGlyphs*/));
-    LEGlyphID ligatureGlyph = findLigatureGlyph(&ligatureIterator);
-    le_int32 ligatureCoverage = getBaseCoverage(base, (LEGlyphID) ligatureGlyph, success);
-    const LigatureArray *ligatureArray = (const LigatureArray *) ((char *) this + SWAPW(baseArrayOffset));
-    le_uint16 ligatureCount = SWAPW(ligatureArray->ligatureCount);
-
-    if (ligatureCoverage < 0 || ligatureCoverage >= ligatureCount) {
-        // The ligature glyph isn't covered, or the coverage
-        // index is too big. The latter means that the
-        // table is mal-formed...
-        return 0;
-    }
-
-    le_int32 markPosition = glyphIterator->getCurrStreamPosition();
-    Offset ligatureAttachOffset = SWAPW(ligatureArray->ligatureAttachTableOffsetArray[ligatureCoverage]);
-    const LigatureAttachTable *ligatureAttachTable = (const LigatureAttachTable *) ((char *) ligatureArray + ligatureAttachOffset);
-    le_int32 componentCount = SWAPW(ligatureAttachTable->componentCount);
-    le_int32 component = ligatureIterator.getMarkComponent(markPosition);
-
-    if (component >= componentCount) {
-        // should really just bail at this point...
-        component = componentCount - 1;
-    }
-
-    const ComponentRecord *componentRecord = &ligatureAttachTable->componentRecordArray[component * mcCount];
-    Offset anchorTableOffset = SWAPW(componentRecord->ligatureAnchorTableOffsetArray[markClass]);
-    const AnchorTable *anchorTable = (const AnchorTable *) ((char *) ligatureAttachTable + anchorTableOffset);
-    LEPoint ligatureAnchor, markAdvance, pixels;
-
-    anchorTable->getAnchor(ligatureGlyph, fontInstance, ligatureAnchor);
-
-    fontInstance->getGlyphAdvance(markGlyph, pixels);
-    fontInstance->pixelsToUnits(pixels, markAdvance);
-
-    float anchorDiffX = ligatureAnchor.fX - markAnchor.fX;
-    float anchorDiffY = ligatureAnchor.fY - markAnchor.fY;
-
-    glyphIterator->setCurrGlyphBaseOffset(ligatureIterator.getCurrStreamPosition());
-
-    if (glyphIterator->isRightToLeft()) {
-        glyphIterator->setCurrGlyphPositionAdjustment(anchorDiffX, anchorDiffY, -markAdvance.fX, -markAdvance.fY);
-    } else {
-        LEPoint ligatureAdvance;
-
-        fontInstance->getGlyphAdvance(ligatureGlyph, pixels);
-        fontInstance->pixelsToUnits(pixels, ligatureAdvance);
-
-        glyphIterator->setCurrGlyphPositionAdjustment(anchorDiffX - ligatureAdvance.fX, anchorDiffY - ligatureAdvance.fY, -markAdvance.fX, -markAdvance.fY);
-    }
-
-    return 1;
-}
-
-U_NAMESPACE_END