HarfBuzz text shaping engine
http://harfbuzz.github.io/
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177 lines
4.2 KiB
177 lines
4.2 KiB
/* |
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* Copyright © 2009 Red Hat, Inc. |
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* |
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* This is part of HarfBuzz, a text shaping library. |
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* |
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* Permission is hereby granted, without written agreement and without |
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* license or royalty fees, to use, copy, modify, and distribute this |
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* software and its documentation for any purpose, provided that the |
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* above copyright notice and the following two paragraphs appear in |
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* all copies of this software. |
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* |
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
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* DAMAGE. |
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* |
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
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* |
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* Red Hat Author(s): Behdad Esfahbod |
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*/ |
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#if !defined(HB_H_IN) && !defined(HB_NO_SINGLE_HEADER_ERROR) |
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#error "Include <hb.h> instead." |
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#endif |
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#ifndef HB_FACE_H |
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#define HB_FACE_H |
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#include "hb-common.h" |
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#include "hb-blob.h" |
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#include "hb-set.h" |
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HB_BEGIN_DECLS |
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HB_EXTERN unsigned int |
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hb_face_count (hb_blob_t *blob); |
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/* |
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* hb_face_t |
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*/ |
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/** |
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* hb_face_t: |
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* |
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* Data type for holding font faces. |
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* |
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**/ |
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typedef struct hb_face_t hb_face_t; |
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HB_EXTERN hb_face_t * |
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hb_face_create (hb_blob_t *blob, |
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unsigned int index); |
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/** |
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* hb_reference_table_func_t: |
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* @face: an #hb_face_t to reference table for |
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* @tag: the tag of the table to reference |
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* @user_data: User data pointer passed by the caller |
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* |
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* Callback function for hb_face_create_for_tables(). |
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* |
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* Return value: (transfer full): A pointer to the @tag table within @face |
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* |
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* Since: 0.9.2 |
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*/ |
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typedef hb_blob_t * (*hb_reference_table_func_t) (hb_face_t *face, hb_tag_t tag, void *user_data); |
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/* calls destroy() when not needing user_data anymore */ |
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HB_EXTERN hb_face_t * |
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hb_face_create_for_tables (hb_reference_table_func_t reference_table_func, |
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void *user_data, |
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hb_destroy_func_t destroy); |
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HB_EXTERN hb_face_t * |
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hb_face_get_empty (void); |
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HB_EXTERN hb_face_t * |
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hb_face_reference (hb_face_t *face); |
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HB_EXTERN void |
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hb_face_destroy (hb_face_t *face); |
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HB_EXTERN hb_bool_t |
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hb_face_set_user_data (hb_face_t *face, |
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hb_user_data_key_t *key, |
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void * data, |
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hb_destroy_func_t destroy, |
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hb_bool_t replace); |
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HB_EXTERN void * |
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hb_face_get_user_data (const hb_face_t *face, |
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hb_user_data_key_t *key); |
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HB_EXTERN void |
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hb_face_make_immutable (hb_face_t *face); |
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HB_EXTERN hb_bool_t |
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hb_face_is_immutable (const hb_face_t *face); |
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HB_EXTERN hb_blob_t * |
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hb_face_reference_table (const hb_face_t *face, |
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hb_tag_t tag); |
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HB_EXTERN hb_blob_t * |
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hb_face_reference_blob (hb_face_t *face); |
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HB_EXTERN void |
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hb_face_set_index (hb_face_t *face, |
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unsigned int index); |
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HB_EXTERN unsigned int |
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hb_face_get_index (const hb_face_t *face); |
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HB_EXTERN void |
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hb_face_set_upem (hb_face_t *face, |
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unsigned int upem); |
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HB_EXTERN unsigned int |
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hb_face_get_upem (const hb_face_t *face); |
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HB_EXTERN void |
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hb_face_set_glyph_count (hb_face_t *face, |
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unsigned int glyph_count); |
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HB_EXTERN unsigned int |
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hb_face_get_glyph_count (const hb_face_t *face); |
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HB_EXTERN unsigned int |
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hb_face_get_table_tags (const hb_face_t *face, |
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unsigned int start_offset, |
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unsigned int *table_count, /* IN/OUT */ |
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hb_tag_t *table_tags /* OUT */); |
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/* |
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* Character set. |
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*/ |
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HB_EXTERN void |
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hb_face_collect_unicodes (hb_face_t *face, |
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hb_set_t *out); |
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HB_EXTERN void |
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hb_face_collect_variation_selectors (hb_face_t *face, |
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hb_set_t *out); |
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HB_EXTERN void |
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hb_face_collect_variation_unicodes (hb_face_t *face, |
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hb_codepoint_t variation_selector, |
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hb_set_t *out); |
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/* |
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* Builder face. |
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*/ |
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HB_EXTERN hb_face_t * |
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hb_face_builder_create (void); |
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HB_EXTERN hb_bool_t |
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hb_face_builder_add_table (hb_face_t *face, |
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hb_tag_t tag, |
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hb_blob_t *blob); |
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HB_END_DECLS |
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#endif /* HB_FACE_H */
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