1 /* 2 * Copyright © 2009 Red Hat, 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 * Red Hat Author(s): Behdad Esfahbod 25 */ 26 27 #ifndef HB_H_IN 28 #error "Include <hb.h> instead." 29 #endif 30 31 #ifndef HB_FACE_H 32 #define HB_FACE_H 33 34 #include "hb-common.h" 35 #include "hb-blob.h" 36 37 HB_BEGIN_DECLS 38 39 40 /* 41 * hb_face_t 42 */ 43 44 typedef struct hb_face_t hb_face_t; 45 46 HB_EXTERN hb_face_t * 47 hb_face_create (hb_blob_t *blob, 48 unsigned int index); 49 50 typedef hb_blob_t * (*hb_reference_table_func_t) (hb_face_t *face, hb_tag_t tag, void *user_data); 51 52 /* calls destroy() when not needing user_data anymore */ 53 HB_EXTERN hb_face_t * 54 hb_face_create_for_tables (hb_reference_table_func_t reference_table_func, 55 void *user_data, 56 hb_destroy_func_t destroy); 57 58 HB_EXTERN hb_face_t * 59 hb_face_get_empty (void); 60 61 HB_EXTERN hb_face_t * 62 hb_face_reference (hb_face_t *face); 63 64 HB_EXTERN void 65 hb_face_destroy (hb_face_t *face); 66 67 HB_EXTERN hb_bool_t 68 hb_face_set_user_data (hb_face_t *face, 69 hb_user_data_key_t *key, 70 void * data, 71 hb_destroy_func_t destroy, 72 hb_bool_t replace); 73 74 75 HB_EXTERN void * 76 hb_face_get_user_data (hb_face_t *face, 77 hb_user_data_key_t *key); 78 79 HB_EXTERN void 80 hb_face_make_immutable (hb_face_t *face); 81 82 HB_EXTERN hb_bool_t 83 hb_face_is_immutable (hb_face_t *face); 84 85 86 HB_EXTERN hb_blob_t * 87 hb_face_reference_table (hb_face_t *face, 88 hb_tag_t tag); 89 90 HB_EXTERN hb_blob_t * 91 hb_face_reference_blob (hb_face_t *face); 92 93 HB_EXTERN void 94 hb_face_set_index (hb_face_t *face, 95 unsigned int index); 96 97 HB_EXTERN unsigned int 98 hb_face_get_index (hb_face_t *face); 99 100 HB_EXTERN void 101 hb_face_set_upem (hb_face_t *face, 102 unsigned int upem); 103 104 HB_EXTERN unsigned int 105 hb_face_get_upem (hb_face_t *face); 106 107 HB_EXTERN void 108 hb_face_set_glyph_count (hb_face_t *face, 109 unsigned int glyph_count); 110 111 HB_EXTERN unsigned int 112 hb_face_get_glyph_count (hb_face_t *face); 113 114 HB_EXTERN unsigned int 115 hb_face_get_table_tags (hb_face_t *face, 116 unsigned int start_offset, 117 unsigned int *table_count, /* IN/OUT */ 118 hb_tag_t *table_tags /* OUT */); 119 120 HB_END_DECLS 121 122 #endif /* HB_FACE_H */ 123