src/hb-aat-layout.h

   1 /*
   2  * Copyright © 2018  Ebrahim Byagowi
   3  *
   4  *  This is part of HarfBuzz, a text shaping library.
   5  *
   6  * Permission is hereby granted, without written agreement and without
   7  * license or royalty fees, to use, copy, modify, and distribute this
   8  * software and its documentation for any purpose, provided that the
   9  * above copyright notice and the following two paragraphs appear in
  10  * all copies of this software.
  11  *
  12  * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
  13  * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
  14  * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
  15  * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
  16  * DAMAGE.
  17  *
  18  * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
  19  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
  20  * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
  21  * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
  22  * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
  23  */
  24
  25 #ifndef HB_AAT_H_IN
  26 #error "Include <hb-aat.h> instead."
  27 #endif
  28
  29 #ifndef HB_AAT_LAYOUT_H
  30 #define HB_AAT_LAYOUT_H
  31
  32 #include "hb.h"
  33
  34 #include "hb-ot.h"
  35
  36 HB_BEGIN_DECLS
  37
  38 /**
  39  * hb_aat_layout_feature_type_t:
  40  *
  41  *
  42  * Since: 2.2.0
  43  */
  44 typedef enum
  45 {
  46   HB_AAT_LAYOUT_FEATURE_TYPE_INVALID                            = 0xFFFF,
  47
  48   HB_AAT_LAYOUT_FEATURE_TYPE_ALL_TYPOGRAPHIC                    = 0,
  49   HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES                          = 1,
  50   HB_AAT_LAYOUT_FEATURE_TYPE_CURISVE_CONNECTION                 = 2,
  51   HB_AAT_LAYOUT_FEATURE_TYPE_LETTER_CASE                        = 3,
  52   HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_SUBSTITUTION              = 4,
  53   HB_AAT_LAYOUT_FEATURE_TYPE_LINGUISTIC_REARRANGEMENT           = 5,
  54   HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_SPACING                     = 6,
  55   HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE                   = 8,
  56   HB_AAT_LAYOUT_FEATURE_TYPE_DIACRITICS_TYPE                    = 9,
  57   HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_POSITION                  = 10,
  58   HB_AAT_LAYOUT_FEATURE_TYPE_FRACTIONS                          = 11,
  59   HB_AAT_LAYOUT_FEATURE_TYPE_OVERLAPPING_CHARACTERS_TYPE        = 13,
  60   HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS                 = 14,
  61   HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS                = 15,
  62   HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE                 = 16,
  63   HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_ALTERNATIVES             = 17,
  64   HB_AAT_LAYOUT_FEATURE_TYPE_DESIGN_COMPLEXITY_TYPE             = 18,
  65   HB_AAT_LAYOUT_FEATURE_TYPE_STYLE_OPTIONS                      = 19,
  66   HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE                    = 20,
  67   HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_CASE                        = 21,
  68   HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING                       = 22,
  69   HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION                    = 23,
  70   HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE                    = 24,
  71   HB_AAT_LAYOUT_FEATURE_TYPE_KANA_SPACING_TYPE                  = 25,
  72   HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_SPACING_TYPE           = 26,
  73   HB_AAT_LAYOUT_FEATURE_TYPE_UNICODE_DECOMPOSITION_TYPE         = 27,
  74   HB_AAT_LAYOUT_FEATURE_TYPE_RUBY_KANA                          = 28,
  75   HB_AAT_LAYOUT_FEATURE_TYPE_CJK_SYMBOL_ALTERNATIVES_TYPE       = 29,
  76   HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_ALTERNATIVES_TYPE      = 30,
  77   HB_AAT_LAYOUT_FEATURE_TYPE_CJK_VERTICAL_ROMAN_PLACEMENT_TYPE  = 31,
  78   HB_AAT_LAYOUT_FEATURE_TYPE_ITALIC_CJK_ROMAN                   = 32,
  79   HB_AAT_LAYOUT_FEATURE_TYPE_CASE_SENSITIVE_LAYOUT              = 33,
  80   HB_AAT_LAYOUT_FEATURE_TYPE_ALTERNATE_KANA                     = 34,
  81   HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES             = 35,
  82   HB_AAT_LAYOUT_FEATURE_TYPE_CONTEXTUAL_ALTERNATIVES            = 36,
  83   HB_AAT_LAYOUT_FEATURE_TYPE_LOWER_CASE                         = 37,
  84   HB_AAT_LAYOUT_FEATURE_TYPE_UPPER_CASE                         = 38,
  85   HB_AAT_LAYOUT_FEATURE_TYPE_LANGUAGE_TAG_TYPE                  = 39,
  86   HB_AAT_LAYOUT_FEATURE_TYPE_CJK_ROMAN_SPACING_TYPE             = 103,
  87
  88   _HB_AAT_LAYOUT_FEATURE_TYPE_MAX_VALUE= 0x7FFFFFFFu, /*< skip >*/
  89 } hb_aat_layout_feature_type_t;
  90
  91 /**
  92  * hb_aat_layout_feature_selector_t:
  93  *
  94  *
  95  * Since: 2.2.0
  96  */
  97 typedef enum
  98 {
  99   HB_AAT_LAYOUT_FEATURE_SELECTOR_INVALID                        = 0xFFFF,
 100
 101   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_ALL_TYPOGRAPHIC */
 102   HB_AAT_LAYOUT_FEATURE_SELECTOR_ALL_TYPE_FEATURES_ON           = 0,
 103   HB_AAT_LAYOUT_FEATURE_SELECTOR_ALL_TYPE_FEATURES_OFF          = 1,
 104
 105   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES */
 106   HB_AAT_LAYOUT_FEATURE_SELECTOR_REQUIRED_LIGATURES_ON          = 0,
 107   HB_AAT_LAYOUT_FEATURE_SELECTOR_REQUIRED_LIGATURES_OFF         = 1,
 108   HB_AAT_LAYOUT_FEATURE_SELECTOR_COMMON_LIGATURES_ON            = 2,
 109   HB_AAT_LAYOUT_FEATURE_SELECTOR_COMMON_LIGATURES_OFF           = 3,
 110   HB_AAT_LAYOUT_FEATURE_SELECTOR_RARE_LIGATURES_ON              = 4,
 111   HB_AAT_LAYOUT_FEATURE_SELECTOR_RARE_LIGATURES_OFF             = 5,
 112   HB_AAT_LAYOUT_FEATURE_SELECTOR_LOGOS_ON                       = 6,
 113   HB_AAT_LAYOUT_FEATURE_SELECTOR_LOGOS_OFF                      = 7,
 114   HB_AAT_LAYOUT_FEATURE_SELECTOR_REBUS_PICTURES_ON              = 8,
 115   HB_AAT_LAYOUT_FEATURE_SELECTOR_REBUS_PICTURES_OFF             = 9,
 116   HB_AAT_LAYOUT_FEATURE_SELECTOR_DIPHTHONG_LIGATURES_ON         = 10,
 117   HB_AAT_LAYOUT_FEATURE_SELECTOR_DIPHTHONG_LIGATURES_OFF        = 11,
 118   HB_AAT_LAYOUT_FEATURE_SELECTOR_SQUARED_LIGATURES_ON           = 12,
 119   HB_AAT_LAYOUT_FEATURE_SELECTOR_SQUARED_LIGATURES_OFF          = 13,
 120   HB_AAT_LAYOUT_FEATURE_SELECTOR_ABBREV_SQUARED_LIGATURES_ON    = 14,
 121   HB_AAT_LAYOUT_FEATURE_SELECTOR_ABBREV_SQUARED_LIGATURES_OFF   = 15,
 122   HB_AAT_LAYOUT_FEATURE_SELECTOR_SYMBOL_LIGATURES_ON            = 16,
 123   HB_AAT_LAYOUT_FEATURE_SELECTOR_SYMBOL_LIGATURES_OFF           = 17,
 124   HB_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_LIGATURES_ON        = 18,
 125   HB_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_LIGATURES_OFF       = 19,
 126   HB_AAT_LAYOUT_FEATURE_SELECTOR_HISTORICAL_LIGATURES_ON        = 20,
 127   HB_AAT_LAYOUT_FEATURE_SELECTOR_HISTORICAL_LIGATURES_OFF       = 21,
 128
 129   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES */
 130   HB_AAT_LAYOUT_FEATURE_SELECTOR_UNCONNECTED                    = 0,
 131   HB_AAT_LAYOUT_FEATURE_SELECTOR_PARTIALLY_CONNECTED            = 1,
 132   HB_AAT_LAYOUT_FEATURE_SELECTOR_CURSIVE                        = 2,
 133
 134   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_LETTER_CASE */
 135   HB_AAT_LAYOUT_FEATURE_SELECTOR_UPPER_AND_LOWER_CASE           = 0, /* deprecated */
 136   HB_AAT_LAYOUT_FEATURE_SELECTOR_ALL_CAPS                       = 1, /* deprecated */
 137   HB_AAT_LAYOUT_FEATURE_SELECTOR_ALL_LOWER_CASE                 = 2, /* deprecated */
 138   HB_AAT_LAYOUT_FEATURE_SELECTOR_SMALL_CAPS                     = 3, /* deprecated */
 139   HB_AAT_LAYOUT_FEATURE_SELECTOR_INITIAL_CAPS                   = 4, /* deprecated */
 140   HB_AAT_LAYOUT_FEATURE_SELECTOR_INITIAL_CAPS_AND_SMALL_CAPS    = 5, /* deprecated */
 141
 142   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_SUBSTITUTION */
 143   HB_AAT_LAYOUT_FEATURE_SELECTOR_SUBSTITUTE_VERTICAL_FORMS_ON   = 0,
 144   HB_AAT_LAYOUT_FEATURE_SELECTOR_SUBSTITUTE_VERTICAL_FORMS_OFF  = 1,
 145
 146   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_LINGUISTIC_REARRANGEMENT */
 147   HB_AAT_LAYOUT_FEATURE_SELECTOR_LINGUISTIC_REARRANGEMENT_ON    = 0,
 148   HB_AAT_LAYOUT_FEATURE_SELECTOR_LINGUISTIC_REARRANGEMENT_OFF   = 1,
 149
 150   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_SPACING */
 151   HB_AAT_LAYOUT_FEATURE_SELECTOR_MONOSPACED_NUMBERS             = 0,
 152   HB_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_NUMBERS           = 1,
 153   HB_AAT_LAYOUT_FEATURE_SELECTOR_THIRD_WIDTH_NUMBERS            = 2,
 154   HB_AAT_LAYOUT_FEATURE_SELECTOR_QUARTER_WIDTH_NUMBERS          = 3,
 155
 156   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE */
 157   HB_AAT_LAYOUT_FEATURE_SELECTOR_WORD_INITIAL_SWASHES_ON        = 0,
 158   HB_AAT_LAYOUT_FEATURE_SELECTOR_WORD_INITIAL_SWASHES_OFF       = 1,
 159   HB_AAT_LAYOUT_FEATURE_SELECTOR_WORD_FINAL_SWASHES_ON          = 2,
 160   HB_AAT_LAYOUT_FEATURE_SELECTOR_WORD_FINAL_SWASHES_OFF         = 3,
 161   HB_AAT_LAYOUT_FEATURE_SELECTOR_LINE_INITIAL_SWASHES_ON        = 4,
 162   HB_AAT_LAYOUT_FEATURE_SELECTOR_LINE_INITIAL_SWASHES_OFF       = 5,
 163   HB_AAT_LAYOUT_FEATURE_SELECTOR_LINE_FINAL_SWASHES_ON          = 6,
 164   HB_AAT_LAYOUT_FEATURE_SELECTOR_LINE_FINAL_SWASHES_OFF         = 7,
 165   HB_AAT_LAYOUT_FEATURE_SELECTOR_NON_FINAL_SWASHES_ON           = 8,
 166   HB_AAT_LAYOUT_FEATURE_SELECTOR_NON_FINAL_SWASHES_OFF          = 9,
 167
 168   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_DIACRITICS_TYPE */
 169   HB_AAT_LAYOUT_FEATURE_SELECTOR_SHOW_DIACRITICS                = 0,
 170   HB_AAT_LAYOUT_FEATURE_SELECTOR_HIDE_DIACRITICS                = 1,
 171   HB_AAT_LAYOUT_FEATURE_SELECTOR_DECOMPOSE_DIACRITICS           = 2,
 172
 173   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_POSITION */
 174   HB_AAT_LAYOUT_FEATURE_SELECTOR_NORMAL_POSITION                = 0,
 175   HB_AAT_LAYOUT_FEATURE_SELECTOR_SUPERIORS                      = 1,
 176   HB_AAT_LAYOUT_FEATURE_SELECTOR_INFERIORS                      = 2,
 177   HB_AAT_LAYOUT_FEATURE_SELECTOR_ORDINALS                       = 3,
 178   HB_AAT_LAYOUT_FEATURE_SELECTOR_SCIENTIFIC_INFERIORS           = 4,
 179
 180   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_FRACTIONS */
 181   HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_FRACTIONS                   = 0,
 182   HB_AAT_LAYOUT_FEATURE_SELECTOR_VERTICAL_FRACTIONS             = 1,
 183   HB_AAT_LAYOUT_FEATURE_SELECTOR_DIAGONAL_FRACTIONS             = 2,
 184
 185   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_OVERLAPPING_CHARACTERS_TYPE */
 186   HB_AAT_LAYOUT_FEATURE_SELECTOR_PREVENT_OVERLAP_ON             = 0,
 187   HB_AAT_LAYOUT_FEATURE_SELECTOR_PREVENT_OVERLAP_OFF            = 1,
 188
 189   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS */
 190   HB_AAT_LAYOUT_FEATURE_SELECTOR_HYPHENS_TO_EM_DASH_ON          = 0,
 191   HB_AAT_LAYOUT_FEATURE_SELECTOR_HYPHENS_TO_EM_DASH_OFF         = 1,
 192   HB_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_EN_DASH_ON           = 2,
 193   HB_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_EN_DASH_OFF          = 3,
 194   HB_AAT_LAYOUT_FEATURE_SELECTOR_SLASHED_ZERO_ON                = 4,
 195   HB_AAT_LAYOUT_FEATURE_SELECTOR_SLASHED_ZERO_OFF               = 5,
 196   HB_AAT_LAYOUT_FEATURE_SELECTOR_FORM_INTERROBANG_ON            = 6,
 197   HB_AAT_LAYOUT_FEATURE_SELECTOR_FORM_INTERROBANG_OFF           = 7,
 198   HB_AAT_LAYOUT_FEATURE_SELECTOR_SMART_QUOTES_ON                = 8,
 199   HB_AAT_LAYOUT_FEATURE_SELECTOR_SMART_QUOTES_OFF               = 9,
 200   HB_AAT_LAYOUT_FEATURE_SELECTOR_PERIODS_TO_ELLIPSIS_ON         = 10,
 201   HB_AAT_LAYOUT_FEATURE_SELECTOR_PERIODS_TO_ELLIPSIS_OFF        = 11,
 202
 203   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS */
 204   HB_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_MINUS_ON             = 0,
 205   HB_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_MINUS_OFF            = 1,
 206   HB_AAT_LAYOUT_FEATURE_SELECTOR_ASTERISK_TO_MULTIPLY_ON        = 2,
 207   HB_AAT_LAYOUT_FEATURE_SELECTOR_ASTERISK_TO_MULTIPLY_OFF       = 3,
 208   HB_AAT_LAYOUT_FEATURE_SELECTOR_SLASH_TO_DIVIDE_ON             = 4,
 209   HB_AAT_LAYOUT_FEATURE_SELECTOR_SLASH_TO_DIVIDE_OFF            = 5,
 210   HB_AAT_LAYOUT_FEATURE_SELECTOR_INEQUALITY_LIGATURES_ON        = 6,
 211   HB_AAT_LAYOUT_FEATURE_SELECTOR_INEQUALITY_LIGATURES_OFF       = 7,
 212   HB_AAT_LAYOUT_FEATURE_SELECTOR_EXPONENTS_ON                   = 8,
 213   HB_AAT_LAYOUT_FEATURE_SELECTOR_EXPONENTS_OFF                  = 9,
 214   HB_AAT_LAYOUT_FEATURE_SELECTOR_MATHEMATICAL_GREEK_ON          = 10,
 215   HB_AAT_LAYOUT_FEATURE_SELECTOR_MATHEMATICAL_GREEK_OFF         = 11,
 216
 217   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE */
 218   HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_ORNAMENTS                   = 0,
 219   HB_AAT_LAYOUT_FEATURE_SELECTOR_DINGBATS                       = 1,
 220   HB_AAT_LAYOUT_FEATURE_SELECTOR_PI_CHARACTERS                  = 2,
 221   HB_AAT_LAYOUT_FEATURE_SELECTOR_FLEURONS                       = 3,
 222   HB_AAT_LAYOUT_FEATURE_SELECTOR_DECORATIVE_BORDERS             = 4,
 223   HB_AAT_LAYOUT_FEATURE_SELECTOR_INTERNATIONAL_SYMBOLS          = 5,
 224   HB_AAT_LAYOUT_FEATURE_SELECTOR_MATH_SYMBOLS                   = 6,
 225
 226   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_ALTERNATIVES */
 227   HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_ALTERNATES                  = 0,
 228
 229   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_DESIGN_COMPLEXITY_TYPE */
 230   HB_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL1                  = 0,
 231   HB_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL2                  = 1,
 232   HB_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL3                  = 2,
 233   HB_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL4                  = 3,
 234   HB_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL5                  = 4,
 235
 236   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLE_OPTIONS */
 237   HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_STYLE_OPTIONS               = 0,
 238   HB_AAT_LAYOUT_FEATURE_SELECTOR_DISPLAY_TEXT                   = 1,
 239   HB_AAT_LAYOUT_FEATURE_SELECTOR_ENGRAVED_TEXT                  = 2,
 240   HB_AAT_LAYOUT_FEATURE_SELECTOR_ILLUMINATED_CAPS               = 3,
 241   HB_AAT_LAYOUT_FEATURE_SELECTOR_TITLING_CAPS                   = 4,
 242   HB_AAT_LAYOUT_FEATURE_SELECTOR_TALL_CAPS                      = 5,
 243
 244   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE */
 245   HB_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_CHARACTERS         = 0,
 246   HB_AAT_LAYOUT_FEATURE_SELECTOR_SIMPLIFIED_CHARACTERS          = 1,
 247   HB_AAT_LAYOUT_FEATURE_SELECTOR_JIS1978_CHARACTERS             = 2,
 248   HB_AAT_LAYOUT_FEATURE_SELECTOR_JIS1983_CHARACTERS             = 3,
 249   HB_AAT_LAYOUT_FEATURE_SELECTOR_JIS1990_CHARACTERS             = 4,
 250   HB_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_ONE            = 5,
 251   HB_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_TWO            = 6,
 252   HB_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_THREE          = 7,
 253   HB_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_FOUR           = 8,
 254   HB_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_FIVE           = 9,
 255   HB_AAT_LAYOUT_FEATURE_SELECTOR_EXPERT_CHARACTERS              = 10,
 256   HB_AAT_LAYOUT_FEATURE_SELECTOR_JIS2004_CHARACTERS             = 11,
 257   HB_AAT_LAYOUT_FEATURE_SELECTOR_HOJO_CHARACTERS                = 12,
 258   HB_AAT_LAYOUT_FEATURE_SELECTOR_NLCCHARACTERS                  = 13,
 259   HB_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_NAMES_CHARACTERS   = 14,
 260
 261   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_CASE */
 262   HB_AAT_LAYOUT_FEATURE_SELECTOR_LOWER_CASE_NUMBERS             = 0,
 263   HB_AAT_LAYOUT_FEATURE_SELECTOR_UPPER_CASE_NUMBERS             = 1,
 264
 265   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING */
 266   HB_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_TEXT              = 0,
 267   HB_AAT_LAYOUT_FEATURE_SELECTOR_MONOSPACED_TEXT                = 1,
 268   HB_AAT_LAYOUT_FEATURE_SELECTOR_HALF_WIDTH_TEXT                = 2,
 269   HB_AAT_LAYOUT_FEATURE_SELECTOR_THIRD_WIDTH_TEXT               = 3,
 270   HB_AAT_LAYOUT_FEATURE_SELECTOR_QUARTER_WIDTH_TEXT             = 4,
 271   HB_AAT_LAYOUT_FEATURE_SELECTOR_ALT_PROPORTIONAL_TEXT          = 5,
 272   HB_AAT_LAYOUT_FEATURE_SELECTOR_ALT_HALF_WIDTH_TEXT            = 6,
 273
 274   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION */
 275   HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_TRANSLITERATION             = 0,
 276   HB_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL                = 1,
 277   HB_AAT_LAYOUT_FEATURE_SELECTOR_HIRAGANA_TO_KATAKANA           = 2,
 278   HB_AAT_LAYOUT_FEATURE_SELECTOR_KATAKANA_TO_HIRAGANA           = 3,
 279   HB_AAT_LAYOUT_FEATURE_SELECTOR_KANA_TO_ROMANIZATION           = 4,
 280   HB_AAT_LAYOUT_FEATURE_SELECTOR_ROMANIZATION_TO_HIRAGANA       = 5,
 281   HB_AAT_LAYOUT_FEATURE_SELECTOR_ROMANIZATION_TO_KATAKANA       = 6,
 282   HB_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL_ALT_ONE        = 7,
 283   HB_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL_ALT_TWO        = 8,
 284   HB_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL_ALT_THREE      = 9,
 285
 286   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE */
 287   HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_ANNOTATION                  = 0,
 288   HB_AAT_LAYOUT_FEATURE_SELECTOR_BOX_ANNOTATION                 = 1,
 289   HB_AAT_LAYOUT_FEATURE_SELECTOR_ROUNDED_BOX_ANNOTATION         = 2,
 290   HB_AAT_LAYOUT_FEATURE_SELECTOR_CIRCLE_ANNOTATION              = 3,
 291   HB_AAT_LAYOUT_FEATURE_SELECTOR_INVERTED_CIRCLE_ANNOTATION     = 4,
 292   HB_AAT_LAYOUT_FEATURE_SELECTOR_PARENTHESIS_ANNOTATION         = 5,
 293   HB_AAT_LAYOUT_FEATURE_SELECTOR_PERIOD_ANNOTATION              = 6,
 294   HB_AAT_LAYOUT_FEATURE_SELECTOR_ROMAN_NUMERAL_ANNOTATION       = 7,
 295   HB_AAT_LAYOUT_FEATURE_SELECTOR_DIAMOND_ANNOTATION             = 8,
 296   HB_AAT_LAYOUT_FEATURE_SELECTOR_INVERTED_BOX_ANNOTATION        = 9,
 297   HB_AAT_LAYOUT_FEATURE_SELECTOR_INVERTED_ROUNDED_BOX_ANNOTATION= 10,
 298
 299   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_KANA_SPACING_TYPE */
 300   HB_AAT_LAYOUT_FEATURE_SELECTOR_FULL_WIDTH_KANA                = 0,
 301   HB_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_KANA              = 1,
 302
 303   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_SPACING_TYPE */
 304   HB_AAT_LAYOUT_FEATURE_SELECTOR_FULL_WIDTH_IDEOGRAPHS          = 0,
 305   HB_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_IDEOGRAPHS        = 1,
 306   HB_AAT_LAYOUT_FEATURE_SELECTOR_HALF_WIDTH_IDEOGRAPHS          = 2,
 307
 308   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_UNICODE_DECOMPOSITION_TYPE */
 309   HB_AAT_LAYOUT_FEATURE_SELECTOR_CANONICAL_COMPOSITION_ON       = 0,
 310   HB_AAT_LAYOUT_FEATURE_SELECTOR_CANONICAL_COMPOSITION_OFF      = 1,
 311   HB_AAT_LAYOUT_FEATURE_SELECTOR_COMPATIBILITY_COMPOSITION_ON   = 2,
 312   HB_AAT_LAYOUT_FEATURE_SELECTOR_COMPATIBILITY_COMPOSITION_OFF  = 3,
 313   HB_AAT_LAYOUT_FEATURE_SELECTOR_TRANSCODING_COMPOSITION_ON     = 4,
 314   HB_AAT_LAYOUT_FEATURE_SELECTOR_TRANSCODING_COMPOSITION_OFF    = 5,
 315
 316   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_RUBY_KANA */
 317   HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_RUBY_KANA                   = 0, /* deprecated - use HB_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA_OFF instead */
 318   HB_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA                      = 1, /* deprecated - use HB_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA_ON instead */
 319   HB_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA_ON                   = 2,
 320   HB_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA_OFF                  = 3,
 321
 322   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_CJK_SYMBOL_ALTERNATIVES_TYPE */
 323   HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_CJK_SYMBOL_ALTERNATIVES     = 0,
 324   HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_ONE             = 1,
 325   HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_TWO             = 2,
 326   HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_THREE           = 3,
 327   HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_FOUR            = 4,
 328   HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_FIVE            = 5,
 329
 330   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_ALTERNATIVES_TYPE */
 331   HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_IDEOGRAPHIC_ALTERNATIVES    = 0,
 332   HB_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_ONE            = 1,
 333   HB_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_TWO            = 2,
 334   HB_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_THREE          = 3,
 335   HB_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_FOUR           = 4,
 336   HB_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_FIVE           = 5,
 337
 338   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_CJK_VERTICAL_ROMAN_PLACEMENT_TYPE */
 339   HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_VERTICAL_ROMAN_CENTERED    = 0,
 340   HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_VERTICAL_ROMAN_HBASELINE   = 1,
 341
 342   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_ITALIC_CJK_ROMAN */
 343   HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_CJK_ITALIC_ROMAN            = 0,    /* deprecated - use HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN_OFF instead */
 344   HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN               = 1,    /* deprecated - use HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN_ON instead */
 345   HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN_ON            = 2,
 346   HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN_OFF           = 3,
 347
 348   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_CASE_SENSITIVE_LAYOUT */
 349   HB_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_LAYOUT_ON       = 0,
 350   HB_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_LAYOUT_OFF      = 1,
 351   HB_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_SPACING_ON      = 2,
 352   HB_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_SPACING_OFF     = 3,
 353
 354   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_ALTERNATE_KANA */
 355   HB_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_HORIZ_KANA_ON        = 0,
 356   HB_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_HORIZ_KANA_OFF       = 1,
 357   HB_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_VERT_KANA_ON         = 2,
 358   HB_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_VERT_KANA_OFF        = 3,
 359
 360   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES */
 361   HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_STYLISTIC_ALTERNATES        = 0,
 362   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ONE_ON           = 2,
 363   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ONE_OFF          = 3,
 364   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWO_ON           = 4,
 365   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWO_OFF          = 5,
 366   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THREE_ON         = 6,
 367   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THREE_OFF        = 7,
 368   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOUR_ON          = 8,
 369   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOUR_OFF         = 9,
 370   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FIVE_ON          = 10,
 371   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FIVE_OFF         = 11,
 372   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SIX_ON           = 12,
 373   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SIX_OFF          = 13,
 374   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SEVEN_ON         = 14,
 375   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SEVEN_OFF        = 15,
 376   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_EIGHT_ON         = 16,
 377   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_EIGHT_OFF        = 17,
 378   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_NINE_ON          = 18,
 379   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_NINE_OFF         = 19,
 380   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TEN_ON           = 20,
 381   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TEN_OFF          = 21,
 382   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ELEVEN_ON        = 22,
 383   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ELEVEN_OFF       = 23,
 384   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWELVE_ON        = 24,
 385   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWELVE_OFF       = 25,
 386   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THIRTEEN_ON      = 26,
 387   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THIRTEEN_OFF     = 27,
 388   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOURTEEN_ON      = 28,
 389   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOURTEEN_OFF     = 29,
 390   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FIFTEEN_ON       = 30,
 391   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FIFTEEN_OFF      = 31,
 392   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SIXTEEN_ON       = 32,
 393   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SIXTEEN_OFF      = 33,
 394   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SEVENTEEN_ON     = 34,
 395   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SEVENTEEN_OFF    = 35,
 396   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_EIGHTEEN_ON      = 36,
 397   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_EIGHTEEN_OFF     = 37,
 398   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_NINETEEN_ON      = 38,
 399   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_NINETEEN_OFF     = 39,
 400   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWENTY_ON        = 40,
 401   HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWENTY_OFF       = 41,
 402
 403   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_CONTEXTUAL_ALTERNATIVES */
 404   HB_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_ALTERNATES_ON       = 0,
 405   HB_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_ALTERNATES_OFF      = 1,
 406   HB_AAT_LAYOUT_FEATURE_SELECTOR_SWASH_ALTERNATES_ON            = 2,
 407   HB_AAT_LAYOUT_FEATURE_SELECTOR_SWASH_ALTERNATES_OFF           = 3,
 408   HB_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_SWASH_ALTERNATES_ON = 4,
 409   HB_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_SWASH_ALTERNATES_OFF= 5,
 410
 411   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_LOWER_CASE */
 412   HB_AAT_LAYOUT_FEATURE_SELECTOR_DEFAULT_LOWER_CASE             = 0,
 413   HB_AAT_LAYOUT_FEATURE_SELECTOR_LOWER_CASE_SMALL_CAPS          = 1,
 414   HB_AAT_LAYOUT_FEATURE_SELECTOR_LOWER_CASE_PETITE_CAPS         = 2,
 415
 416   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_UPPER_CASE */
 417   HB_AAT_LAYOUT_FEATURE_SELECTOR_DEFAULT_UPPER_CASE             = 0,
 418   HB_AAT_LAYOUT_FEATURE_SELECTOR_UPPER_CASE_SMALL_CAPS          = 1,
 419   HB_AAT_LAYOUT_FEATURE_SELECTOR_UPPER_CASE_PETITE_CAPS         = 2,
 420
 421   /* Selectors for #HB_AAT_LAYOUT_FEATURE_TYPE_CJK_ROMAN_SPACING_TYPE */
 422   HB_AAT_LAYOUT_FEATURE_SELECTOR_HALF_WIDTH_CJK_ROMAN           = 0,
 423   HB_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_CJK_ROMAN         = 1,
 424   HB_AAT_LAYOUT_FEATURE_SELECTOR_DEFAULT_CJK_ROMAN              = 2,
 425   HB_AAT_LAYOUT_FEATURE_SELECTOR_FULL_WIDTH_CJK_ROMAN           = 3,
 426
 427   _HB_AAT_LAYOUT_FEATURE_SELECTOR_MAX_VALUE= 0x7FFFFFFFu, /*< skip >*/
 428 } hb_aat_layout_feature_selector_t;
 429
 430 HB_EXTERN unsigned int
 431 hb_aat_layout_get_feature_types (hb_face_t                    *face,
 432                                  unsigned int                  start_offset,
 433                                  unsigned int                 *feature_count, /* IN/OUT.  May be NULL. */
 434                                  hb_aat_layout_feature_type_t *features       /* OUT.     May be NULL. */);
 435
 436 HB_EXTERN hb_ot_name_id_t
 437 hb_aat_layout_feature_type_get_name_id (hb_face_t                    *face,
 438                                         hb_aat_layout_feature_type_t  feature_type);
 439
 440 typedef struct hb_aat_layout_feature_selector_info_t
 441 {
 442   hb_ot_name_id_t                       name_id;
 443   hb_aat_layout_feature_selector_t      enable;
 444   hb_aat_layout_feature_selector_t      disable;
 445   /*< private >*/
 446   unsigned int                          reserved;
 447 } hb_aat_layout_feature_selector_info_t;
 448
 449 #define HB_AAT_LAYOUT_NO_SELECTOR_INDEX         0xFFFFu
 450
 451 HB_EXTERN unsigned int
 452 hb_aat_layout_feature_type_get_selector_infos (hb_face_t                             *face,
 453                                                hb_aat_layout_feature_type_t           feature_type,
 454                                                unsigned int                           start_offset,
 455                                                unsigned int                          *selector_count, /* IN/OUT.  May be NULL. */
 456                                                hb_aat_layout_feature_selector_info_t *selectors,      /* OUT.     May be NULL. */
 457                                                unsigned int                          *default_index   /* OUT.     May be NULL. */);
 458
 459
 460 /*
 461  * morx/mort
 462  */
 463
 464 HB_EXTERN hb_bool_t
 465 hb_aat_layout_has_substitution (hb_face_t *face);
 466
 467
 468 /*
 469  * kerx
 470  */
 471
 472 HB_EXTERN hb_bool_t
 473 hb_aat_layout_has_positioning (hb_face_t *face);
 474
 475
 476 /*
 477  * trak
 478  */
 479
 480 HB_EXTERN hb_bool_t
 481 hb_aat_layout_has_tracking (hb_face_t *face);
 482
 483
 484 HB_END_DECLS
 485
 486 #endif /* HB_AAT_LAYOUT_H */