comparison mupdf-source/thirdparty/harfbuzz/src/hb-deprecated.h @ 2:b50eed0cc0ef upstream

ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
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_EXTERN HB_DEPRECATED_FOR(hb_font_funcs_set_nominal_glyph_func and hb_font_funcs_set_variation_glyph_func) void
106 hb_font_funcs_set_glyph_func (hb_font_funcs_t *ffuncs,
107 hb_font_get_glyph_func_t func,
108 void *user_data, hb_destroy_func_t destroy);
109
110 /**
111 * hb_unicode_eastasian_width_func_t:
112 * @ufuncs: A Unicode-functions structure
113 * @unicode: The code point to query
114 * @user_data: User data pointer passed by the caller
115 *
116 * A virtual method for the #hb_unicode_funcs_t structure.
117 *
118 * Deprecated: 2.0.0
119 */
120 typedef unsigned int (*hb_unicode_eastasian_width_func_t) (hb_unicode_funcs_t *ufuncs,
121 hb_codepoint_t unicode,
122 void *user_data);
123
124 /**
125 * hb_unicode_funcs_set_eastasian_width_func:
126 * @ufuncs: a Unicode-function structure
127 * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign
128 * @user_data: Data to pass to @func
129 * @destroy: (nullable): The function to call when @user_data is not needed anymore
130 *
131 * Sets the implementation function for #hb_unicode_eastasian_width_func_t.
132 *
133 * Since: 0.9.2
134 * Deprecated: 2.0.0
135 **/
136 HB_EXTERN HB_DEPRECATED void
137 hb_unicode_funcs_set_eastasian_width_func (hb_unicode_funcs_t *ufuncs,
138 hb_unicode_eastasian_width_func_t func,
139 void *user_data, hb_destroy_func_t destroy);
140
141 /**
142 * hb_unicode_eastasian_width:
143 * @ufuncs: a Unicode-function structure
144 * @unicode: The code point to query
145 *
146 * Don't use. Not used by HarfBuzz.
147 *
148 * Since: 0.9.2
149 * Deprecated: 2.0.0
150 **/
151 HB_EXTERN HB_DEPRECATED unsigned int
152 hb_unicode_eastasian_width (hb_unicode_funcs_t *ufuncs,
153 hb_codepoint_t unicode);
154
155
156 /**
157 * hb_unicode_decompose_compatibility_func_t:
158 * @ufuncs: a Unicode function structure
159 * @u: codepoint to decompose
160 * @decomposed: address of codepoint array (of length #HB_UNICODE_MAX_DECOMPOSITION_LEN) to write decomposition into
161 * @user_data: user data pointer as passed to hb_unicode_funcs_set_decompose_compatibility_func()
162 *
163 * Fully decompose @u to its Unicode compatibility decomposition. The codepoints of the decomposition will be written to @decomposed.
164 * The complete length of the decomposition will be returned.
165 *
166 * If @u has no compatibility decomposition, zero should be returned.
167 *
168 * The Unicode standard guarantees that a buffer of length #HB_UNICODE_MAX_DECOMPOSITION_LEN codepoints will always be sufficient for any
169 * compatibility decomposition plus an terminating value of 0. Consequently, @decompose must be allocated by the caller to be at least this length. Implementations
170 * of this function type must ensure that they do not write past the provided array.
171 *
172 * Return value: number of codepoints in the full compatibility decomposition of @u, or 0 if no decomposition available.
173 *
174 * Deprecated: 2.0.0
175 */
176 typedef unsigned int (*hb_unicode_decompose_compatibility_func_t) (hb_unicode_funcs_t *ufuncs,
177 hb_codepoint_t u,
178 hb_codepoint_t *decomposed,
179 void *user_data);
180
181 /**
182 * HB_UNICODE_MAX_DECOMPOSITION_LEN:
183 *
184 * See Unicode 6.1 for details on the maximum decomposition length.
185 *
186 * Deprecated: 2.0.0
187 */
188 #define HB_UNICODE_MAX_DECOMPOSITION_LEN (18+1) /* codepoints */
189
190 /**
191 * hb_unicode_funcs_set_decompose_compatibility_func:
192 * @ufuncs: A Unicode-functions structure
193 * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign
194 * @user_data: Data to pass to @func
195 * @destroy: (nullable): The function to call when @user_data is not needed anymore
196 *
197 * Sets the implementation function for #hb_unicode_decompose_compatibility_func_t.
198 *
199 *
200 *
201 * Since: 0.9.2
202 * Deprecated: 2.0.0
203 **/
204 HB_EXTERN HB_DEPRECATED void
205 hb_unicode_funcs_set_decompose_compatibility_func (hb_unicode_funcs_t *ufuncs,
206 hb_unicode_decompose_compatibility_func_t func,
207 void *user_data, hb_destroy_func_t destroy);
208
209 HB_EXTERN HB_DEPRECATED unsigned int
210 hb_unicode_decompose_compatibility (hb_unicode_funcs_t *ufuncs,
211 hb_codepoint_t u,
212 hb_codepoint_t *decomposed);
213
214
215 /**
216 * hb_font_get_glyph_v_kerning_func_t:
217 *
218 * A virtual method for the #hb_font_funcs_t of an #hb_font_t object.
219 *
220 * This method should retrieve the kerning-adjustment value for a glyph-pair in
221 * the specified font, for vertical text segments.
222 *
223 **/
224 typedef hb_font_get_glyph_kerning_func_t hb_font_get_glyph_v_kerning_func_t;
225
226 /**
227 * hb_font_funcs_set_glyph_v_kerning_func:
228 * @ffuncs: A font-function structure
229 * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign
230 * @user_data: Data to pass to @func
231 * @destroy: (nullable): The function to call when @user_data is not needed anymore
232 *
233 * Sets the implementation function for #hb_font_get_glyph_v_kerning_func_t.
234 *
235 * Since: 0.9.2
236 * Deprecated: 2.0.0
237 **/
238 HB_EXTERN void
239 hb_font_funcs_set_glyph_v_kerning_func (hb_font_funcs_t *ffuncs,
240 hb_font_get_glyph_v_kerning_func_t func,
241 void *user_data, hb_destroy_func_t destroy);
242
243 HB_EXTERN hb_position_t
244 hb_font_get_glyph_v_kerning (hb_font_t *font,
245 hb_codepoint_t top_glyph, hb_codepoint_t bottom_glyph);
246
247 #endif
248
249 HB_END_DECLS
250
251 #endif /* HB_DEPRECATED_H */