ICU-64232.0.1.tar.gz

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

diff --git a/icuSources/layout/MarkToBasePosnSubtables.cpp b/icuSources/layout/MarkToBasePosnSubtables.cpp
deleted file mode 100644 (file)
index cf2ab04..0000000
--- a/icuSources/layout/MarkToBasePosnSubtables.cpp
+++ /dev/null
@@ -1,115 +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 "MarkToBasePosnSubtables.h"
-#include "GlyphIterator.h"
-#include "LESwaps.h"
-
-U_NAMESPACE_BEGIN
-
-LEGlyphID MarkToBasePositioningSubtable::findBaseGlyph(GlyphIterator *glyphIterator) const
-{
-    if (glyphIterator->prev()) {
-        return glyphIterator->getCurrGlyphID();
-    }
-
-    return 0xFFFF;
-}
-
-le_int32 MarkToBasePositioningSubtable::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 base glyph before a previous ligature... 
-    GlyphIterator baseIterator(*glyphIterator, (le_uint16) (lfIgnoreMarks /*| lfIgnoreLigatures*/));
-    LEGlyphID baseGlyph = findBaseGlyph(&baseIterator);
-    le_int32 baseCoverage = getBaseCoverage(base, (LEGlyphID) baseGlyph, success);
-    const BaseArray *baseArray = (const BaseArray *) ((char *) this + SWAPW(baseArrayOffset));
-    le_uint16 baseCount = SWAPW(baseArray->baseRecordCount);
-
-    if (baseCoverage < 0 || baseCoverage >= baseCount) {
-        // The base glyph isn't covered, or the coverage
-        // index is too big. The latter means that the
-        // table is mal-formed...
-        return 0;
-    }
-
-    const BaseRecord *baseRecord = &baseArray->baseRecordArray[baseCoverage * mcCount];
-    Offset anchorTableOffset = SWAPW(baseRecord->baseAnchorTableOffsetArray[markClass]);
-    const AnchorTable *anchorTable = (const AnchorTable *) ((char *) baseArray + anchorTableOffset);
-    LEPoint baseAnchor, markAdvance, pixels;
-
-    if (anchorTableOffset == 0) {
-        // this means the table is mal-formed...
-        glyphIterator->setCurrGlyphBaseOffset(baseIterator.getCurrStreamPosition());
-        return 0;
-    }
-
-    anchorTable->getAnchor(baseGlyph, fontInstance, baseAnchor);
-
-    fontInstance->getGlyphAdvance(markGlyph, pixels);
-    fontInstance->pixelsToUnits(pixels, markAdvance);
-
-    float anchorDiffX = baseAnchor.fX - markAnchor.fX;
-    float anchorDiffY = baseAnchor.fY - markAnchor.fY;
-
-    glyphIterator->setCurrGlyphBaseOffset(baseIterator.getCurrStreamPosition());
-
-    if (glyphIterator->isRightToLeft()) {
-        // FIXME: need similar patch to below; also in MarkToLigature and MarkToMark
-        // (is there a better way to approach this for all the cases?)
-        glyphIterator->setCurrGlyphPositionAdjustment(anchorDiffX, anchorDiffY, -markAdvance.fX, -markAdvance.fY);
-    } else {
-        LEPoint baseAdvance;
-
-        fontInstance->getGlyphAdvance(baseGlyph, pixels);
-        
-        //JK: adjustment needs to account for non-zero advance of any marks between base glyph and current mark
-        GlyphIterator gi(baseIterator, (le_uint16)0); // copy of baseIterator that won't ignore marks
-        gi.next(); // point beyond the base glyph
-        while (gi.getCurrStreamPosition() < glyphIterator->getCurrStreamPosition()) { // for all intervening glyphs (marks)...
-            LEGlyphID otherMark = gi.getCurrGlyphID();
-            LEPoint px;
-            fontInstance->getGlyphAdvance(otherMark, px); // get advance, in case it's non-zero
-            pixels.fX += px.fX; // and add that to the base glyph's advance
-            pixels.fY += px.fY;
-            gi.next();
-        }
-        // end of JK patch
-   
-        fontInstance->pixelsToUnits(pixels, baseAdvance);
-
-        glyphIterator->setCurrGlyphPositionAdjustment(anchorDiffX - baseAdvance.fX, anchorDiffY - baseAdvance.fY, -markAdvance.fX, -markAdvance.fY);
-    }
-
-    return 1;
-}
-
-U_NAMESPACE_END