2 * Copyright © 2013 Google, Inc.
4 * This is part of HarfBuzz, a text shaping library.
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.
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
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.
24 * Google Author(s): Behdad Esfahbod
27 #if !defined(HB_H_IN) && !defined(HB_NO_SINGLE_HEADER_ERROR)
28 #error "Include <hb.h> instead."
31 #ifndef HB_DEPRECATED_H
32 #define HB_DEPRECATED_H
34 #include "hb-common.h"
35 #include "hb-unicode.h"
41 * SECTION:hb-deprecated
42 * @title: hb-deprecated
43 * @short_description: Deprecated API
46 * These API have been deprecated in favor of newer API, or because they
47 * were deemed unnecessary.
53 #ifndef HB_DISABLE_DEPRECATED
57 * HB_SCRIPT_CANADIAN_ABORIGINAL:
59 * Use #HB_SCRIPT_CANADIAN_SYLLABICS instead:
63 #define HB_SCRIPT_CANADIAN_ABORIGINAL HB_SCRIPT_CANADIAN_SYLLABICS
66 * HB_BUFFER_FLAGS_DEFAULT:
68 * Use #HB_BUFFER_FLAG_DEFAULT instead.
72 #define HB_BUFFER_FLAGS_DEFAULT HB_BUFFER_FLAG_DEFAULT
74 * HB_BUFFER_SERIALIZE_FLAGS_DEFAULT:
76 * Use #HB_BUFFER_SERIALIZE_FLAG_DEFAULT instead.
80 #define HB_BUFFER_SERIALIZE_FLAGS_DEFAULT HB_BUFFER_SERIALIZE_FLAG_DEFAULT
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
91 * A virtual method for the #hb_font_funcs_t of an #hb_font_t object.
93 * This method should retrieve the glyph ID for a specified Unicode code point
94 * font, with an optional variation selector.
96 * Return value: %true if data found, %false otherwise
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,
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);
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
116 * A virtual method for the #hb_unicode_funcs_t structure.
120 typedef unsigned int (*hb_unicode_eastasian_width_func_t) (hb_unicode_funcs_t *ufuncs,
121 hb_codepoint_t unicode,
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
131 * Sets the implementation function for #hb_unicode_eastasian_width_func_t.
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);
142 * hb_unicode_eastasian_width:
143 * @ufuncs: a Unicode-function structure
144 * @unicode: The code point to query
146 * Don't use. Not used by HarfBuzz.
151 HB_EXTERN HB_DEPRECATED unsigned int
152 hb_unicode_eastasian_width (hb_unicode_funcs_t *ufuncs,
153 hb_codepoint_t unicode);
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()
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.
166 * If @u has no compatibility decomposition, zero should be returned.
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.
172 * Return value: number of codepoints in the full compatibility decomposition of @u, or 0 if no decomposition available.
176 typedef unsigned int (*hb_unicode_decompose_compatibility_func_t) (hb_unicode_funcs_t *ufuncs,
178 hb_codepoint_t *decomposed,
182 * HB_UNICODE_MAX_DECOMPOSITION_LEN:
184 * See Unicode 6.1 for details on the maximum decomposition length.
188 #define HB_UNICODE_MAX_DECOMPOSITION_LEN (18+1) /* codepoints */
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
197 * Sets the implementation function for #hb_unicode_decompose_compatibility_func_t.
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);
209 HB_EXTERN HB_DEPRECATED unsigned int
210 hb_unicode_decompose_compatibility (hb_unicode_funcs_t *ufuncs,
212 hb_codepoint_t *decomposed);
216 * hb_font_get_glyph_v_kerning_func_t:
218 * A virtual method for the #hb_font_funcs_t of an #hb_font_t object.
220 * This method should retrieve the kerning-adjustment value for a glyph-pair in
221 * the specified font, for vertical text segments.
224 typedef hb_font_get_glyph_kerning_func_t hb_font_get_glyph_v_kerning_func_t;
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
233 * Sets the implementation function for #hb_font_get_glyph_v_kerning_func_t.
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);
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);
251 #endif /* HB_DEPRECATED_H */