/*

 *

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

 *

 */

#ifndef __GLYPHSUBSTITUTIONTABLES_H

#define __GLYPHSUBSTITUTIONTABLES_H

/**

 * \file

 * \internal

 */

#include "LETypes.h"

#include "OpenTypeTables.h"

#include "Lookups.h"

#include "GlyphLookupTables.h"

U_NAMESPACE_BEGIN

class  LEGlyphStorage;

class  LEGlyphFilter;

struct GlyphDefinitionTableHeader;

struct GlyphSubstitutionTableHeader : public GlyphLookupTableHeader

{

    le_int32    process(LEGlyphStorage &glyphStorage, le_bool rightToLeft, LETag scriptTag, LETag languageTag,

                 const GlyphDefinitionTableHeader *glyphDefinitionTableHeader,

                 LEErrorCode &success,

                 const LEGlyphFilter *filter = NULL, const LETag *featureOrder = NULL) const;

};

enum GlyphSubstitutionSubtableTypes

{

    gsstSingle          = 1,

    gsstMultiple        = 2,

    gsstAlternate       = 3,

    gsstLigature        = 4,

    gsstContext         = 5,

    gsstChainingContext = 6,

    gsstExtension       = 7,

    gsstReverseChaining = 8

};

typedef LookupSubtable GlyphSubstitutionSubtable;

U_NAMESPACE_END

#endif