1 /*

     2  *

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

     4  *

     5  */

     6 

     7 #ifndef __LOOKUPS_H

     8 #define __LOOKUPS_H

     9 

    10 /**

    11  * \file

    12  * \internal

    13  */

    14 

    15 #include "LETypes.h"

    16 #include "OpenTypeTables.h"

    17 

    18 U_NAMESPACE_BEGIN

    19 

    20 enum LookupFlags

    21 {

    22     lfBaselineIsLogicalEnd  = 0x0001,  // The MS spec. calls this flag "RightToLeft" but this name is more accurate 

    23     lfIgnoreBaseGlyphs      = 0x0002,

    24     lfIgnoreLigatures       = 0x0004,

    25     lfIgnoreMarks           = 0x0008,

    26     lfReservedMask          = 0x00F0,

    27     lfMarkAttachTypeMask    = 0xFF00,

    28     lfMarkAttachTypeShift   = 8

    29 };

    30 

    31 struct LookupSubtable

    32 {

    33     le_uint16 subtableFormat;

    34     Offset    coverageTableOffset;

    35 

    36     inline le_int32  getGlyphCoverage(LEGlyphID glyphID) const;

    37 

    38     le_int32  getGlyphCoverage(Offset tableOffset, LEGlyphID glyphID) const;

    39 };

    40 

    41 struct LookupTable

    42 {

    43     le_uint16       lookupType;

    44     le_uint16       lookupFlags;

    45     le_uint16       subTableCount;

    46     Offset          subTableOffsetArray[ANY_NUMBER];

    47 

    48     const LookupSubtable  *getLookupSubtable(le_uint16 subtableIndex) const;

    49 };

    50 

    51 struct LookupListTable

    52 {

    53     le_uint16   lookupCount;

    54     Offset      lookupTableOffsetArray[ANY_NUMBER];

    55 

    56     const LookupTable *getLookupTable(le_uint16 lookupTableIndex) const;

    57 };

    58 

    59 inline le_int32 LookupSubtable::getGlyphCoverage(LEGlyphID glyphID) const

    60 {

    61     return getGlyphCoverage(coverageTableOffset, glyphID);

    62 }

    63 

    64 U_NAMESPACE_END

    65 #endif