third_party/harfbuzz-ng/src/hb-face.h

   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_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_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_face_t *
  59 hb_face_get_empty (void);
  60
  61 hb_face_t *
  62 hb_face_reference (hb_face_t *face);
  63
  64 void
  65 hb_face_destroy (hb_face_t *face);
  66
  67 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 void *
  76 hb_face_get_user_data (hb_face_t          *face,
  77                        hb_user_data_key_t *key);
  78
  79 void
  80 hb_face_make_immutable (hb_face_t *face);
  81
  82 hb_bool_t
  83 hb_face_is_immutable (hb_face_t *face);
  84
  85
  86 hb_blob_t *
  87 hb_face_reference_table (hb_face_t *face,
  88                          hb_tag_t   tag);
  89
  90 hb_blob_t *
  91 hb_face_reference_blob (hb_face_t *face);
  92
  93 void
  94 hb_face_set_index (hb_face_t    *face,
  95                    unsigned int  index);
  96
  97 unsigned int
  98 hb_face_get_index (hb_face_t    *face);
  99
 100 void
 101 hb_face_set_upem (hb_face_t    *face,
 102                   unsigned int  upem);
 103
 104 unsigned int
 105 hb_face_get_upem (hb_face_t *face);
 106
 107 void
 108 hb_face_set_glyph_count (hb_face_t    *face,
 109                          unsigned int  glyph_count);
 110
 111 unsigned int
 112 hb_face_get_glyph_count (hb_face_t *face);
 113
 114
 115 HB_END_DECLS
 116
 117 #endif /* HB_FACE_H */