jpayne@69: /*
jpayne@69:  * Copyright © 2009  Red Hat, Inc.
jpayne@69:  *
jpayne@69:  *  This is part of HarfBuzz, a text shaping library.
jpayne@69:  *
jpayne@69:  * Permission is hereby granted, without written agreement and without
jpayne@69:  * license or royalty fees, to use, copy, modify, and distribute this
jpayne@69:  * software and its documentation for any purpose, provided that the
jpayne@69:  * above copyright notice and the following two paragraphs appear in
jpayne@69:  * all copies of this software.
jpayne@69:  *
jpayne@69:  * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
jpayne@69:  * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
jpayne@69:  * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
jpayne@69:  * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
jpayne@69:  * DAMAGE.
jpayne@69:  *
jpayne@69:  * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
jpayne@69:  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
jpayne@69:  * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
jpayne@69:  * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
jpayne@69:  * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
jpayne@69:  *
jpayne@69:  * Red Hat Author(s): Behdad Esfahbod
jpayne@69:  */
jpayne@69: 
jpayne@69: #ifndef HB_H_IN
jpayne@69: #error "Include <hb.h> instead."
jpayne@69: #endif
jpayne@69: 
jpayne@69: #ifndef HB_FACE_H
jpayne@69: #define HB_FACE_H
jpayne@69: 
jpayne@69: #include "hb-common.h"
jpayne@69: #include "hb-blob.h"
jpayne@69: #include "hb-set.h"
jpayne@69: 
jpayne@69: HB_BEGIN_DECLS
jpayne@69: 
jpayne@69: 
jpayne@69: HB_EXTERN unsigned int
jpayne@69: hb_face_count (hb_blob_t *blob);
jpayne@69: 
jpayne@69: 
jpayne@69: /*
jpayne@69:  * hb_face_t
jpayne@69:  */
jpayne@69: 
jpayne@69: typedef struct hb_face_t hb_face_t;
jpayne@69: 
jpayne@69: HB_EXTERN hb_face_t *
jpayne@69: hb_face_create (hb_blob_t    *blob,
jpayne@69: 		unsigned int  index);
jpayne@69: 
jpayne@69: typedef hb_blob_t * (*hb_reference_table_func_t)  (hb_face_t *face, hb_tag_t tag, void *user_data);
jpayne@69: 
jpayne@69: /* calls destroy() when not needing user_data anymore */
jpayne@69: HB_EXTERN hb_face_t *
jpayne@69: hb_face_create_for_tables (hb_reference_table_func_t  reference_table_func,
jpayne@69: 			   void                      *user_data,
jpayne@69: 			   hb_destroy_func_t          destroy);
jpayne@69: 
jpayne@69: HB_EXTERN hb_face_t *
jpayne@69: hb_face_get_empty (void);
jpayne@69: 
jpayne@69: HB_EXTERN hb_face_t *
jpayne@69: hb_face_reference (hb_face_t *face);
jpayne@69: 
jpayne@69: HB_EXTERN void
jpayne@69: hb_face_destroy (hb_face_t *face);
jpayne@69: 
jpayne@69: HB_EXTERN hb_bool_t
jpayne@69: hb_face_set_user_data (hb_face_t          *face,
jpayne@69: 		       hb_user_data_key_t *key,
jpayne@69: 		       void *              data,
jpayne@69: 		       hb_destroy_func_t   destroy,
jpayne@69: 		       hb_bool_t           replace);
jpayne@69: 
jpayne@69: HB_EXTERN void *
jpayne@69: hb_face_get_user_data (const hb_face_t    *face,
jpayne@69: 		       hb_user_data_key_t *key);
jpayne@69: 
jpayne@69: HB_EXTERN void
jpayne@69: hb_face_make_immutable (hb_face_t *face);
jpayne@69: 
jpayne@69: HB_EXTERN hb_bool_t
jpayne@69: hb_face_is_immutable (const hb_face_t *face);
jpayne@69: 
jpayne@69: 
jpayne@69: HB_EXTERN hb_blob_t *
jpayne@69: hb_face_reference_table (const hb_face_t *face,
jpayne@69: 			 hb_tag_t tag);
jpayne@69: 
jpayne@69: HB_EXTERN hb_blob_t *
jpayne@69: hb_face_reference_blob (hb_face_t *face);
jpayne@69: 
jpayne@69: HB_EXTERN void
jpayne@69: hb_face_set_index (hb_face_t    *face,
jpayne@69: 		   unsigned int  index);
jpayne@69: 
jpayne@69: HB_EXTERN unsigned int
jpayne@69: hb_face_get_index (const hb_face_t *face);
jpayne@69: 
jpayne@69: HB_EXTERN void
jpayne@69: hb_face_set_upem (hb_face_t    *face,
jpayne@69: 		  unsigned int  upem);
jpayne@69: 
jpayne@69: HB_EXTERN unsigned int
jpayne@69: hb_face_get_upem (const hb_face_t *face);
jpayne@69: 
jpayne@69: HB_EXTERN void
jpayne@69: hb_face_set_glyph_count (hb_face_t    *face,
jpayne@69: 			 unsigned int  glyph_count);
jpayne@69: 
jpayne@69: HB_EXTERN unsigned int
jpayne@69: hb_face_get_glyph_count (const hb_face_t *face);
jpayne@69: 
jpayne@69: HB_EXTERN unsigned int
jpayne@69: hb_face_get_table_tags (const hb_face_t *face,
jpayne@69: 			unsigned int  start_offset,
jpayne@69: 			unsigned int *table_count, /* IN/OUT */
jpayne@69: 			hb_tag_t     *table_tags /* OUT */);
jpayne@69: 
jpayne@69: 
jpayne@69: /*
jpayne@69:  * Character set.
jpayne@69:  */
jpayne@69: 
jpayne@69: HB_EXTERN void
jpayne@69: hb_face_collect_unicodes (hb_face_t *face,
jpayne@69: 			  hb_set_t  *out);
jpayne@69: 
jpayne@69: HB_EXTERN void
jpayne@69: hb_face_collect_variation_selectors (hb_face_t *face,
jpayne@69: 				     hb_set_t  *out);
jpayne@69: 
jpayne@69: HB_EXTERN void
jpayne@69: hb_face_collect_variation_unicodes (hb_face_t *face,
jpayne@69: 				    hb_codepoint_t variation_selector,
jpayne@69: 				    hb_set_t  *out);
jpayne@69: 
jpayne@69: 
jpayne@69: /*
jpayne@69:  * Builder face.
jpayne@69:  */
jpayne@69: 
jpayne@69: HB_EXTERN hb_face_t *
jpayne@69: hb_face_builder_create (void);
jpayne@69: 
jpayne@69: HB_EXTERN hb_bool_t
jpayne@69: hb_face_builder_add_table (hb_face_t *face,
jpayne@69: 			   hb_tag_t   tag,
jpayne@69: 			   hb_blob_t *blob);
jpayne@69: 
jpayne@69: 
jpayne@69: HB_END_DECLS
jpayne@69: 
jpayne@69: #endif /* HB_FACE_H */