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