/* * 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 */ #if !defined(HB_H_IN) && !defined(HB_NO_SINGLE_HEADER_ERROR) #error "Include <hb.h> instead." #endif #ifndef HB_FACE_H #define HB_FACE_H #include "hb-common.h" #include "hb-blob.h" #include "hb-map.h" #include "hb-set.h" HB_BEGIN_DECLS HB_EXTERN unsigned int hb_face_count (hb_blob_t *blob); /* * hb_face_t */ /** * hb_face_t: * * Data type for holding font faces. * **/ hb_face_t; HB_EXTERN hb_face_t * hb_face_create (hb_blob_t *blob, unsigned int index); /** * hb_reference_table_func_t: * @face: an #hb_face_t to reference table for * @tag: the tag of the table to reference * @user_data: User data pointer passed by the caller * * Callback function for hb_face_create_for_tables(). * * Return value: (transfer full): A pointer to the @tag table within @face * * Since: 0.9.2 */ hb_reference_table_func_t; /* 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_get_table_tags_func_t: * @face: A face object * @start_offset: The index of first table tag to retrieve * @table_count: (inout): Input = the maximum number of table tags to return; * Output = the actual number of table tags returned (may be zero) * @table_tags: (out) (array length=table_count): The array of table tags found * @user_data: User data pointer passed by the caller * * Callback function for hb_face_get_table_tags(). * * Return value: Total number of tables, or zero if it is not possible to list * * Since: 10.0.0 */ hb_get_table_tags_func_t; HB_EXTERN void hb_face_set_get_table_tags_func (hb_face_t *face, hb_get_table_tags_func_t func, void *user_data, hb_destroy_func_t destroy); 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_nominal_glyph_mapping (hb_face_t *face, hb_map_t *mapping, hb_set_t *unicodes); 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_EXTERN void hb_face_builder_sort_tables (hb_face_t *face, const hb_tag_t *tags); HB_END_DECLS #endif /* HB_FACE_H */
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