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      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 
    115 HB_END_DECLS
    116 
    117 #endif /* HB_FACE_H */
    118