1 /*
   2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   3  *
   4  * This code is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License version 2 only, as
   6  * published by the Free Software Foundation.  Oracle designates this
   7  * particular file as subject to the "Classpath" exception as provided
   8  * by Oracle in the LICENSE file that accompanied this code.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  */
  24 
  25 // This file is available under and governed by the GNU General Public
  26 // License version 2 only, as published by the Free Software Foundation.
  27 // However, the following notice accompanied the original version of this
  28 // file:
  29 //
  30 /*
  31  * Copyright © 2009  Red Hat, Inc.
  32  *
  33  *  This is part of HarfBuzz, a text shaping library.
  34  *
  35  * Permission is hereby granted, without written agreement and without
  36  * license or royalty fees, to use, copy, modify, and distribute this
  37  * software and its documentation for any purpose, provided that the
  38  * above copyright notice and the following two paragraphs appear in
  39  * all copies of this software.
  40  *
  41  * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
  42  * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
  43  * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
  44  * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
  45  * DAMAGE.
  46  *
  47  * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
  48  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
  49  * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
  50  * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
  51  * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
  52  *
  53  * Red Hat Author(s): Behdad Esfahbod
  54  */
  55 
  56 #ifndef HB_H_IN
  57 #error "Include <hb.h> instead."
  58 #endif
  59 
  60 #ifndef HB_FACE_H
  61 #define HB_FACE_H
  62 
  63 #include "hb-common.h"
  64 #include "hb-blob.h"
  65 
  66 HB_BEGIN_DECLS
  67 
  68 
  69 /*
  70  * hb_face_t
  71  */
  72 
  73 typedef struct hb_face_t hb_face_t;
  74 
  75 hb_face_t *
  76 hb_face_create (hb_blob_t    *blob,
  77                 unsigned int  index);
  78 
  79 typedef hb_blob_t * (*hb_reference_table_func_t)  (hb_face_t *face, hb_tag_t tag, void *user_data);
  80 
  81 /* calls destroy() when not needing user_data anymore */
  82 hb_face_t *
  83 hb_face_create_for_tables (hb_reference_table_func_t  reference_table_func,
  84                            void                      *user_data,
  85                            hb_destroy_func_t          destroy);
  86 
  87 hb_face_t *
  88 hb_face_get_empty (void);
  89 
  90 hb_face_t *
  91 hb_face_reference (hb_face_t *face);
  92 
  93 void
  94 hb_face_destroy (hb_face_t *face);
  95 
  96 hb_bool_t
  97 hb_face_set_user_data (hb_face_t          *face,
  98                        hb_user_data_key_t *key,
  99                        void *              data,
 100                        hb_destroy_func_t   destroy,
 101                        hb_bool_t           replace);
 102 
 103 
 104 void *
 105 hb_face_get_user_data (hb_face_t          *face,
 106                        hb_user_data_key_t *key);
 107 
 108 void
 109 hb_face_make_immutable (hb_face_t *face);
 110 
 111 hb_bool_t
 112 hb_face_is_immutable (hb_face_t *face);
 113 
 114 
 115 hb_blob_t *
 116 hb_face_reference_table (hb_face_t *face,
 117                          hb_tag_t   tag);
 118 
 119 hb_blob_t *
 120 hb_face_reference_blob (hb_face_t *face);
 121 
 122 void
 123 hb_face_set_index (hb_face_t    *face,
 124                    unsigned int  index);
 125 
 126 unsigned int
 127 hb_face_get_index (hb_face_t    *face);
 128 
 129 void
 130 hb_face_set_upem (hb_face_t    *face,
 131                   unsigned int  upem);
 132 
 133 unsigned int
 134 hb_face_get_upem (hb_face_t *face);
 135 
 136 void
 137 hb_face_set_glyph_count (hb_face_t    *face,
 138                          unsigned int  glyph_count);
 139 
 140 unsigned int
 141 hb_face_get_glyph_count (hb_face_t *face);
 142 
 143 
 144 HB_END_DECLS
 145 
 146 #endif /* HB_FACE_H */