1 /*

     2  *

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

     4  *

     5  */

     6 

     7 #ifndef __PAIRPOSITIONINGSUBTABLES_H

     8 #define __PAIRPOSITIONINGSUBTABLES_H

     9 

    10 /**

    11  * \file

    12  * \internal

    13  */

    14 

    15 #include "LETypes.h"

    16 #include "LEFontInstance.h"

    17 #include "OpenTypeTables.h"

    18 #include "GlyphPositioningTables.h"

    19 #include "ValueRecords.h"

    20 #include "GlyphIterator.h"

    21 

    22 U_NAMESPACE_BEGIN

    23 

    24 // NOTE: ValueRecord has a variable size

    25 struct PairValueRecord

    26 {

    27     TTGlyphID     secondGlyph;

    28     ValueRecord valueRecord1;

    29 //  ValueRecord valueRecord2;

    30 };

    31 

    32 struct PairSetTable

    33 {

    34     le_uint16       pairValueCount;

    35     PairValueRecord pairValueRecordArray[ANY_NUMBER];

    36 };

    37 

    38 struct PairPositioningSubtable : GlyphPositioningSubtable

    39 {

    40     ValueFormat valueFormat1;

    41     ValueFormat valueFormat2;

    42 

    43     le_uint32  process(GlyphIterator *glyphIterator, const LEFontInstance *fontInstance) const;

    44 };

    45 

    46 struct PairPositioningFormat1Subtable : PairPositioningSubtable

    47 {

    48     le_uint16   pairSetCount;

    49     Offset      pairSetTableOffsetArray[ANY_NUMBER];

    50 

    51     le_uint32  process(GlyphIterator *glyphIterator, const LEFontInstance *fontInstance) const;

    52 

    53 private:

    54     const PairValueRecord *findPairValueRecord(TTGlyphID glyphID, const PairValueRecord *records,

    55         le_uint16 recordCount, le_uint16 recordSize) const;

    56 };

    57 

    58 // NOTE: ValueRecord has a variable size

    59 struct Class2Record

    60 {

    61     ValueRecord valueRecord1;

    62 //  ValueRecord valurRecord2;

    63 };

    64 

    65 struct Class1Record

    66 {

    67     Class2Record class2RecordArray[ANY_NUMBER];

    68 };

    69 

    70 struct PairPositioningFormat2Subtable : PairPositioningSubtable

    71 {

    72     Offset       classDef1Offset;

    73     Offset       classDef2Offset;

    74     le_uint16    class1Count;

    75     le_uint16    class2Count;

    76     Class1Record class1RecordArray[ANY_NUMBER];

    77 

    78     le_uint32  process(GlyphIterator *glyphIterator, const LEFontInstance *fontInstance) const;

    79 };

    80 

    81 U_NAMESPACE_END

    82 #endif

    83 

    84