gfx/harfbuzz/src/hb-deprecated.h

   1 /*
   2  * Copyright © 2013  Google, Inc.
   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  * Google Author(s): Behdad Esfahbod
  25  */
  26
  27 #if !defined(HB_H_IN) && !defined(HB_NO_SINGLE_HEADER_ERROR)
  28 #error "Include <hb.h> instead."
  29 #endif
  30
  31 #ifndef HB_DEPRECATED_H
  32 #define HB_DEPRECATED_H
  33
  34 #include "hb-common.h"
  35 #include "hb-unicode.h"
  36 #include "hb-font.h"
  37 #include "hb-set.h"
  38
  39
  40 /**
  41  * SECTION:hb-deprecated
  42  * @title: hb-deprecated
  43  * @short_description: Deprecated API
  44  * @include: hb.h
  45  *
  46  * These API have been deprecated in favor of newer API, or because they
  47  * were deemed unnecessary.
  48  **/
  49
  50
  51 HB_BEGIN_DECLS
  52
  53 #ifndef HB_DISABLE_DEPRECATED
  54
  55
  56 /**
  57  * HB_SCRIPT_CANADIAN_ABORIGINAL:
  58  *
  59  * Use #HB_SCRIPT_CANADIAN_SYLLABICS instead:
  60  *
  61  * Deprecated: 0.9.20
  62  */
  63 #define HB_SCRIPT_CANADIAN_ABORIGINAL           HB_SCRIPT_CANADIAN_SYLLABICS
  64
  65 /**
  66  * HB_BUFFER_FLAGS_DEFAULT:
  67  *
  68  * Use #HB_BUFFER_FLAG_DEFAULT instead.
  69  *
  70  * Deprecated: 0.9.20
  71  */
  72 #define HB_BUFFER_FLAGS_DEFAULT                 HB_BUFFER_FLAG_DEFAULT
  73 /**
  74  * HB_BUFFER_SERIALIZE_FLAGS_DEFAULT:
  75  *
  76  * Use #HB_BUFFER_SERIALIZE_FLAG_DEFAULT instead.
  77  *
  78  * Deprecated: 0.9.20
  79  */
  80 #define HB_BUFFER_SERIALIZE_FLAGS_DEFAULT       HB_BUFFER_SERIALIZE_FLAG_DEFAULT
  81
  82 /**
  83  * hb_font_get_glyph_func_t:
  84  * @font: #hb_font_t to work upon
  85  * @font_data: @font user data pointer
  86  * @unicode: The Unicode code point to query
  87  * @variation_selector: The  variation-selector code point to query
  88  * @glyph: (out): The glyph ID retrieved
  89  * @user_data: User data pointer passed by the caller
  90  *
  91  * A virtual method for the #hb_font_funcs_t of an #hb_font_t object.
  92  *
  93  * This method should retrieve the glyph ID for a specified Unicode code point
  94  * font, with an optional variation selector.
  95  *
  96  * Return value: `true` if data found, `false` otherwise
  97  * Deprecated: 1.2.3
  98  *
  99  **/
 100 typedef hb_bool_t (*hb_font_get_glyph_func_t) (hb_font_t *font, void *font_data,
 101                                                hb_codepoint_t unicode, hb_codepoint_t variation_selector,
 102                                                hb_codepoint_t *glyph,
 103                                                void *user_data);
 104
 105 HB_DEPRECATED_FOR (hb_font_funcs_set_nominal_glyph_func and hb_font_funcs_set_variation_glyph_func)
 106 HB_EXTERN void
 107 hb_font_funcs_set_glyph_func (hb_font_funcs_t *ffuncs,
 108                               hb_font_get_glyph_func_t func,
 109                               void *user_data, hb_destroy_func_t destroy);
 110
 111 /* https://github.com/harfbuzz/harfbuzz/pull/4207 */
 112 /**
 113  * HB_UNICODE_COMBINING_CLASS_CCC133:
 114  *
 115  * [Tibetan]
 116  *
 117  * Deprecated: 7.2.0
 118  **/
 119 #define HB_UNICODE_COMBINING_CLASS_CCC133 133
 120
 121 /**
 122  * hb_unicode_eastasian_width_func_t:
 123  * @ufuncs: A Unicode-functions structure
 124  * @unicode: The code point to query
 125  * @user_data: User data pointer passed by the caller
 126  *
 127  * A virtual method for the #hb_unicode_funcs_t structure.
 128  *
 129  * Deprecated: 2.0.0
 130  */
 131 typedef unsigned int                    (*hb_unicode_eastasian_width_func_t)    (hb_unicode_funcs_t *ufuncs,
 132                                                                                  hb_codepoint_t      unicode,
 133                                                                                  void               *user_data);
 134
 135 /**
 136  * hb_unicode_funcs_set_eastasian_width_func:
 137  * @ufuncs: a Unicode-function structure
 138  * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign
 139  * @user_data: Data to pass to @func
 140  * @destroy: (nullable): The function to call when @user_data is not needed anymore
 141  *
 142  * Sets the implementation function for #hb_unicode_eastasian_width_func_t.
 143  *
 144  * Since: 0.9.2
 145  * Deprecated: 2.0.0
 146  **/
 147 HB_EXTERN HB_DEPRECATED void
 148 hb_unicode_funcs_set_eastasian_width_func (hb_unicode_funcs_t *ufuncs,
 149                                            hb_unicode_eastasian_width_func_t func,
 150                                            void *user_data, hb_destroy_func_t destroy);
 151
 152 /**
 153  * hb_unicode_eastasian_width:
 154  * @ufuncs: a Unicode-function structure
 155  * @unicode: The code point to query
 156  *
 157  * Don't use. Not used by HarfBuzz.
 158  *
 159  * Since: 0.9.2
 160  * Deprecated: 2.0.0
 161  **/
 162 HB_EXTERN HB_DEPRECATED unsigned int
 163 hb_unicode_eastasian_width (hb_unicode_funcs_t *ufuncs,
 164                             hb_codepoint_t unicode);
 165
 166
 167 /**
 168  * hb_unicode_decompose_compatibility_func_t:
 169  * @ufuncs: a Unicode function structure
 170  * @u: codepoint to decompose
 171  * @decomposed: address of codepoint array (of length #HB_UNICODE_MAX_DECOMPOSITION_LEN) to write decomposition into
 172  * @user_data: user data pointer as passed to hb_unicode_funcs_set_decompose_compatibility_func()
 173  *
 174  * Fully decompose @u to its Unicode compatibility decomposition. The codepoints of the decomposition will be written to @decomposed.
 175  * The complete length of the decomposition will be returned.
 176  *
 177  * If @u has no compatibility decomposition, zero should be returned.
 178  *
 179  * The Unicode standard guarantees that a buffer of length #HB_UNICODE_MAX_DECOMPOSITION_LEN codepoints will always be sufficient for any
 180  * compatibility decomposition plus an terminating value of 0.  Consequently, @decompose must be allocated by the caller to be at least this length.  Implementations
 181  * of this function type must ensure that they do not write past the provided array.
 182  *
 183  * Return value: number of codepoints in the full compatibility decomposition of @u, or 0 if no decomposition available.
 184  *
 185  * Deprecated: 2.0.0
 186  */
 187 typedef unsigned int                    (*hb_unicode_decompose_compatibility_func_t)    (hb_unicode_funcs_t *ufuncs,
 188                                                                                          hb_codepoint_t      u,
 189                                                                                          hb_codepoint_t     *decomposed,
 190                                                                                          void               *user_data);
 191
 192 /**
 193  * HB_UNICODE_MAX_DECOMPOSITION_LEN:
 194  *
 195  * See Unicode 6.1 for details on the maximum decomposition length.
 196  *
 197  * Deprecated: 2.0.0
 198  */
 199 #define HB_UNICODE_MAX_DECOMPOSITION_LEN (18+1) /* codepoints */
 200
 201 /**
 202  * hb_unicode_funcs_set_decompose_compatibility_func:
 203  * @ufuncs: A Unicode-functions structure
 204  * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign
 205  * @user_data: Data to pass to @func
 206  * @destroy: (nullable): The function to call when @user_data is not needed anymore
 207  *
 208  * Sets the implementation function for #hb_unicode_decompose_compatibility_func_t.
 209  *
 210  *
 211  *
 212  * Since: 0.9.2
 213  * Deprecated: 2.0.0
 214  **/
 215 HB_EXTERN HB_DEPRECATED void
 216 hb_unicode_funcs_set_decompose_compatibility_func (hb_unicode_funcs_t *ufuncs,
 217                                                    hb_unicode_decompose_compatibility_func_t func,
 218                                                    void *user_data, hb_destroy_func_t destroy);
 219
 220 HB_EXTERN HB_DEPRECATED unsigned int
 221 hb_unicode_decompose_compatibility (hb_unicode_funcs_t *ufuncs,
 222                                     hb_codepoint_t      u,
 223                                     hb_codepoint_t     *decomposed);
 224
 225
 226 /**
 227  * hb_font_get_glyph_v_kerning_func_t:
 228  *
 229  * A virtual method for the #hb_font_funcs_t of an #hb_font_t object.
 230  *
 231  * This method should retrieve the kerning-adjustment value for a glyph-pair in
 232  * the specified font, for vertical text segments.
 233  *
 234  **/
 235 typedef hb_font_get_glyph_kerning_func_t hb_font_get_glyph_v_kerning_func_t;
 236
 237 /**
 238  * hb_font_funcs_set_glyph_v_kerning_func:
 239  * @ffuncs: A font-function structure
 240  * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign
 241  * @user_data: Data to pass to @func
 242  * @destroy: (nullable): The function to call when @user_data is not needed anymore
 243  *
 244  * Sets the implementation function for #hb_font_get_glyph_v_kerning_func_t.
 245  *
 246  * Since: 0.9.2
 247  * Deprecated: 2.0.0
 248  **/
 249 HB_EXTERN void
 250 hb_font_funcs_set_glyph_v_kerning_func (hb_font_funcs_t *ffuncs,
 251                                         hb_font_get_glyph_v_kerning_func_t func,
 252                                         void *user_data, hb_destroy_func_t destroy);
 253
 254 HB_EXTERN hb_position_t
 255 hb_font_get_glyph_v_kerning (hb_font_t *font,
 256                              hb_codepoint_t top_glyph, hb_codepoint_t bottom_glyph);
 257
 258
 259 /**
 260  * hb_font_get_glyph_shape_func_t:
 261  * @font: #hb_font_t to work upon
 262  * @font_data: @font user data pointer
 263  * @glyph: The glyph ID to query
 264  * @draw_funcs: The draw functions to send the shape data to
 265  * @draw_data: The data accompanying the draw functions
 266  * @user_data: User data pointer passed by the caller
 267  *
 268  * A virtual method for the #hb_font_funcs_t of an #hb_font_t object.
 269  *
 270  * Since: 4.0.0
 271  * Deprecated: 7.0.0: Use #hb_font_draw_glyph_func_t instead
 272  **/
 273 typedef void (*hb_font_get_glyph_shape_func_t) (hb_font_t *font, void *font_data,
 274                                                 hb_codepoint_t glyph,
 275                                                 hb_draw_funcs_t *draw_funcs, void *draw_data,
 276                                                 void *user_data);
 277
 278 /**
 279  * hb_font_funcs_set_glyph_shape_func:
 280  * @ffuncs: A font-function structure
 281  * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign
 282  * @user_data: Data to pass to @func
 283  * @destroy: (nullable): The function to call when @user_data is not needed anymore
 284  *
 285  * Sets the implementation function for #hb_font_get_glyph_shape_func_t,
 286  * which is the same as #hb_font_draw_glyph_func_t.
 287  *
 288  * Since: 4.0.0
 289  * Deprecated: 7.0.0: Use hb_font_funcs_set_draw_glyph_func() instead
 290  **/
 291 HB_DEPRECATED_FOR (hb_font_funcs_set_draw_glyph_func)
 292 HB_EXTERN void
 293 hb_font_funcs_set_glyph_shape_func (hb_font_funcs_t *ffuncs,
 294                                     hb_font_get_glyph_shape_func_t func,
 295                                     void *user_data, hb_destroy_func_t destroy);
 296
 297 HB_DEPRECATED_FOR (hb_font_draw_glyph)
 298 HB_EXTERN void
 299 hb_font_get_glyph_shape (hb_font_t *font,
 300                          hb_codepoint_t glyph,
 301                          hb_draw_funcs_t *dfuncs, void *draw_data);
 302
 303
 304 #endif
 305
 306
 307 HB_END_DECLS
 308
 309 #endif /* HB_DEPRECATED_H */