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. 1998-2005 - All Rights Reserved
  29  *
  30  */
  31 
  32 #ifndef __LOOKUPS_H
  33 #define __LOOKUPS_H
  34 
  35 #include "LETypes.h"
  36 #include "OpenTypeTables.h"
  37 
  38 enum LookupFlags
  39 {
  40     lfBaselineIsLogicalEnd  = 0x0001,  // The MS spec. calls this flag "RightToLeft" but this name is more accurate
  41     lfIgnoreBaseGlyphs      = 0x0002,
  42     lfIgnoreLigatures       = 0x0004,
  43     lfIgnoreMarks           = 0x0008,
  44     lfReservedMask          = 0x00F0,
  45     lfMarkAttachTypeMask    = 0xFF00,
  46     lfMarkAttachTypeShift   = 8
  47 };
  48 
  49 struct LookupSubtable
  50 {
  51     le_uint16 subtableFormat;
  52     Offset    coverageTableOffset;
  53 
  54     inline le_int32  getGlyphCoverage(LEGlyphID glyphID) const;
  55 
  56     le_int32  getGlyphCoverage(Offset tableOffset, LEGlyphID glyphID) const;
  57 };
  58 
  59 struct LookupTable
  60 {
  61     le_uint16       lookupType;
  62     le_uint16       lookupFlags;
  63     le_uint16       subTableCount;
  64     Offset          subTableOffsetArray[ANY_NUMBER];
  65 
  66     const LookupSubtable  *getLookupSubtable(le_uint16 subtableIndex) const;
  67 };
  68 
  69 struct LookupListTable
  70 {
  71     le_uint16   lookupCount;
  72     Offset      lookupTableOffsetArray[ANY_NUMBER];
  73 
  74     const LookupTable *getLookupTable(le_uint16 lookupTableIndex) const;
  75 };
  76 
  77 inline le_int32 LookupSubtable::getGlyphCoverage(LEGlyphID glyphID) const
  78 {
  79     return getGlyphCoverage(coverageTableOffset, glyphID);
  80 }
  81 
  82 
  83 
  84 #endif