2 * Copyright © 2009 Red Hat, 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 * Red Hat Author(s): Behdad Esfahbod
27 #if !defined(HB_H_IN) && !defined(HB_NO_SINGLE_HEADER_ERROR)
28 #error "Include <hb.h> instead."
34 #include "hb-common.h"
41 HB_EXTERN unsigned int
42 hb_face_count (hb_blob_t *blob);
52 * Data type for holding font faces.
55 typedef struct hb_face_t hb_face_t;
58 hb_face_create (hb_blob_t *blob,
62 * hb_reference_table_func_t:
63 * @face: an #hb_face_t to reference table for
64 * @tag: the tag of the table to reference
65 * @user_data: User data pointer passed by the caller
67 * Callback function for hb_face_create_for_tables().
69 * Return value: (transfer full): A pointer to the @tag table within @face
74 typedef hb_blob_t * (*hb_reference_table_func_t) (hb_face_t *face, hb_tag_t tag, void *user_data);
76 /* calls destroy() when not needing user_data anymore */
78 hb_face_create_for_tables (hb_reference_table_func_t reference_table_func,
80 hb_destroy_func_t destroy);
83 hb_face_get_empty (void);
86 hb_face_reference (hb_face_t *face);
89 hb_face_destroy (hb_face_t *face);
92 hb_face_set_user_data (hb_face_t *face,
93 hb_user_data_key_t *key,
95 hb_destroy_func_t destroy,
99 hb_face_get_user_data (const hb_face_t *face,
100 hb_user_data_key_t *key);
103 hb_face_make_immutable (hb_face_t *face);
106 hb_face_is_immutable (const hb_face_t *face);
109 HB_EXTERN hb_blob_t *
110 hb_face_reference_table (const hb_face_t *face,
113 HB_EXTERN hb_blob_t *
114 hb_face_reference_blob (hb_face_t *face);
117 hb_face_set_index (hb_face_t *face,
120 HB_EXTERN unsigned int
121 hb_face_get_index (const hb_face_t *face);
124 hb_face_set_upem (hb_face_t *face,
127 HB_EXTERN unsigned int
128 hb_face_get_upem (const hb_face_t *face);
131 hb_face_set_glyph_count (hb_face_t *face,
132 unsigned int glyph_count);
134 HB_EXTERN unsigned int
135 hb_face_get_glyph_count (const hb_face_t *face);
137 HB_EXTERN unsigned int
138 hb_face_get_table_tags (const hb_face_t *face,
139 unsigned int start_offset,
140 unsigned int *table_count, /* IN/OUT */
141 hb_tag_t *table_tags /* OUT */);
149 hb_face_collect_unicodes (hb_face_t *face,
153 hb_face_collect_variation_selectors (hb_face_t *face,
157 hb_face_collect_variation_unicodes (hb_face_t *face,
158 hb_codepoint_t variation_selector,
166 HB_EXTERN hb_face_t *
167 hb_face_builder_create (void);
170 hb_face_builder_add_table (hb_face_t *face,
177 #endif /* HB_FACE_H */