/*

 * (C) Copyright IBM Corp. 1998 - 2005 - All Rights Reserved

 *

 */

#include "LETypes.h"

#include "OpenTypeTables.h"

#include "GlyphPositioningTables.h"

#include "CursiveAttachmentSubtables.h"

#include "AnchorTables.h"

#include "GlyphIterator.h"

#include "OpenTypeUtilities.h"

#include "LESwaps.h"

U_NAMESPACE_BEGIN

le_uint32 CursiveAttachmentSubtable::process(GlyphIterator *glyphIterator, const LEFontInstance *fontInstance) const

{

    LEGlyphID glyphID       = glyphIterator->getCurrGlyphID();

    le_int32  coverageIndex = getGlyphCoverage(glyphID);

    le_uint16 eeCount       = SWAPW(entryExitCount);

    if (coverageIndex < 0 || coverageIndex >= eeCount) {

        glyphIterator->setCursiveGlyph();

        return 0;

    }

    LEPoint entryAnchor, exitAnchor;

    Offset entryOffset = SWAPW(entryExitRecords[coverageIndex].entryAnchor);

    Offset exitOffset  = SWAPW(entryExitRecords[coverageIndex].exitAnchor);

    if (entryOffset != 0) {

        const AnchorTable *entryAnchorTable = (const AnchorTable *) ((char *) this + entryOffset);

        entryAnchorTable->getAnchor(glyphID, fontInstance, entryAnchor);

        glyphIterator->setCursiveEntryPoint(entryAnchor);

    }

    if (exitOffset != 0) {

        const AnchorTable *exitAnchorTable = (const AnchorTable *) ((char *) this + exitOffset);

        exitAnchorTable->getAnchor(glyphID, fontInstance, exitAnchor);

        glyphIterator->setCursiveExitPoint(exitAnchor);

    }

    return 1;

}

U_NAMESPACE_END