view src/share/native/sun/font/layout/StateTableProcessor.h @ 8508:e12f4af19806

8158302: Handle contextual glyph substitutions Reviewed-by: prr
author dmarkov
date Tue, 05 Jul 2016 19:03:39 +0300
parents 245c2dce7225
children
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/*
 * 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
 * questions.
 *
 */

/*
 *
 * (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved
 *
 */

#ifndef __STATETABLEPROCESSOR_H
#define __STATETABLEPROCESSOR_H

/**
 * \file
 * \internal
 */

#include "LETypes.h"
#include "MorphTables.h"
#include "MorphStateTables.h"
#include "SubtableProcessor.h"

U_NAMESPACE_BEGIN

class LEGlyphStorage;

class StateTableProcessor : public SubtableProcessor
{
public:
    void process(LEGlyphStorage &glyphStorage, LEErrorCode &success);

    virtual void beginStateTable() = 0;

    virtual ByteOffset processStateEntry(LEGlyphStorage &glyphStorage, le_int32 &currGlyph, EntryTableIndex index, LEErrorCode &success) = 0;

    virtual void endStateTable() = 0;

protected:
    StateTableProcessor(const LEReferenceTo<MorphSubtableHeader> &morphSubtableHeader, LEErrorCode &success);
    virtual ~StateTableProcessor();

    StateTableProcessor();

    le_int16 stateSize;
    ByteOffset classTableOffset;
    ByteOffset stateArrayOffset;
    ByteOffset entryTableOffset;

    LEReferenceTo<ClassTable> classTable;
    TTGlyphID firstGlyph;
    TTGlyphID lastGlyph;

    LEReferenceTo<MorphStateTableHeader> stateTableHeader;
    LEReferenceTo<StateTableHeader> stHeader; // for convenience

private:
    StateTableProcessor(const StateTableProcessor &other); // forbid copying of this class
    StateTableProcessor &operator=(const StateTableProcessor &other); // forbid copying of this class
};

U_NAMESPACE_END
#endif