1 /*
   2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   3  *
   4  * This code is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License version 2 only, as
   6  * published by the Free Software Foundation.  Oracle designates this
   7  * particular file as subject to the "Classpath" exception as provided
   8  * by Oracle in the LICENSE file that accompanied this code.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 /*
  27  *
  28  * (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved
  29  *
  30  */
  31 
  32 #ifndef __CONTEXTUALGLYPHSUBSTITUTIONPROCESSOR_H
  33 #define __CONTEXTUALGLYPHSUBSTITUTIONPROCESSOR_H
  34 
  35 /**
  36  * \file
  37  * \internal
  38  */
  39 
  40 #include "LETypes.h"
  41 #include "MorphTables.h"
  42 #include "SubtableProcessor.h"
  43 #include "StateTableProcessor.h"
  44 #include "ContextualGlyphSubstitution.h"
  45 
  46 U_NAMESPACE_BEGIN
  47 
  48 class LEGlyphStorage;
  49 
  50 class ContextualGlyphSubstitutionProcessor : public StateTableProcessor
  51 {
  52 public:
  53     virtual void beginStateTable();
  54 
  55     virtual ByteOffset processStateEntry(LEGlyphStorage &glyphStorage, le_int32 &currGlyph, EntryTableIndex index);
  56 
  57     virtual void endStateTable();
  58 
  59     ContextualGlyphSubstitutionProcessor(const LEReferenceTo<MorphSubtableHeader> &morphSubtableHeader, LEErrorCode &success);
  60     virtual ~ContextualGlyphSubstitutionProcessor();
  61 
  62     /**
  63      * ICU "poor man's RTTI", returns a UClassID for the actual class.
  64      *
  65      * @stable ICU 2.8
  66      */
  67     virtual UClassID getDynamicClassID() const;
  68 
  69     /**
  70      * ICU "poor man's RTTI", returns a UClassID for this class.
  71      *
  72      * @stable ICU 2.8
  73      */
  74     static UClassID getStaticClassID();
  75 
  76 private:
  77     ContextualGlyphSubstitutionProcessor();
  78 
  79 protected:
  80     ByteOffset substitutionTableOffset;
  81     LEReferenceToArrayOf<ContextualGlyphSubstitutionStateEntry> entryTable;
  82     LEReferenceToArrayOf<le_int16> int16Table;
  83     le_int32 markGlyph;
  84 
  85     LEReferenceTo<ContextualGlyphSubstitutionHeader> contextualGlyphSubstitutionHeader;
  86 
  87 };
  88 
  89 U_NAMESPACE_END
  90 #endif