/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
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/*
*
*
* (C) Copyright IBM Corp. 1998-2008 - All Rights Reserved
*
*/
#ifndef __LOOKUPPROCESSOR_H
#define __LOOKUPPROCESSOR_H
/**
* \file
* \internal
*/
#include "LETypes.h"
#include "LEFontInstance.h"
#include "OpenTypeTables.h"
#include "LETableReference.h"
//#include "Lookups.h"
//#include "Features.h"
U_NAMESPACE_BEGIN
class LEFontInstance;
class LEGlyphStorage;
class GlyphIterator;
class GlyphPositionAdjustments;
struct FeatureTable;
struct FeatureListTable;
struct GlyphDefinitionTableHeader;
struct LookupSubtable;
struct LookupTable;
class LookupProcessor : public UMemory {
public:
le_int32 process(LEGlyphStorage &glyphStorage, GlyphPositionAdjustments *glyphPositionAdjustments,
le_bool rightToLeft, const LEReferenceTo<GlyphDefinitionTableHeader> &glyphDefinitionTableHeader, const LEFontInstance *fontInstance, LEErrorCode& success) const;
le_uint32 applyLookupTable(const LEReferenceTo<LookupTable> &lookupTable, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode& success) const;
le_uint32 applySingleLookup(le_uint16 lookupTableIndex, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode& success) const;
virtual le_uint32 applySubtable(const LEReferenceTo<LookupSubtable> &lookupSubtable, le_uint16 subtableType,
GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode& success) const = 0;
virtual ~LookupProcessor();
const LETableReference &getReference() const { return fReference; }
protected:
LookupProcessor(const LETableReference &baseAddress,
Offset scriptListOffset,
Offset featureListOffset,
Offset lookupListOffset,
LETag scriptTag,
LETag languageTag,
const FeatureMap *featureMap,
le_int32 featureMapCount,
le_bool orderFeatures,
LEErrorCode& success);
LookupProcessor();
le_int32 selectLookups(const LEReferenceTo<FeatureTable> &featureTable, FeatureMask featureMask, le_int32 order, LEErrorCode &success);
LEReferenceTo<LookupListTable> lookupListTable;
LEReferenceTo<FeatureListTable> featureListTable;
FeatureMask *lookupSelectArray;
le_uint32 lookupSelectCount;
le_uint16 *lookupOrderArray;
le_uint32 lookupOrderCount;
LETableReference fReference;
private:
LookupProcessor(const LookupProcessor &other); // forbid copying of this class
LookupProcessor &operator=(const LookupProcessor &other); // forbid copying of this class
};
U_NAMESPACE_END
#endif