harfbuzz/src/hb-ot-meta.h

73 lines
2.5 KiB
C

/*
* Copyright © 2019 Ebrahim Byagowi
*
* 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.
*/
#if !defined(HB_OT_H_IN) && !defined(HB_NO_SINGLE_HEADER_ERROR)
#error "Include <hb-ot.h> instead."
#endif
#ifndef HB_OT_META_H
#define HB_OT_META_H
#include "hb.h"
HB_BEGIN_DECLS
/**
* hb_ot_meta_tag_t:
* @HB_OT_META_TAG_DESIGN_LANGUAGES: Design languages. Text, using only
* Basic Latin (ASCII) characters. Indicates languages and/or scripts
* for the user audiences that the font was primarily designed for.
* @HB_OT_META_TAG_SUPPORTED_LANGUAGES: Supported languages. Text, using
* only Basic Latin (ASCII) characters. Indicates languages and/or scripts
* that the font is declared to be capable of supporting.
*
* Known metadata tags from https://docs.microsoft.com/en-us/typography/opentype/spec/meta
*
* Since: 2.6.0
**/
typedef enum {
/*
HB_OT_META_TAG_APPL = HB_TAG ('a','p','p','l'),
HB_OT_META_TAG_BILD = HB_TAG ('b','i','l','d'),
*/
HB_OT_META_TAG_DESIGN_LANGUAGES = HB_TAG ('d','l','n','g'),
HB_OT_META_TAG_SUPPORTED_LANGUAGES = HB_TAG ('s','l','n','g'),
/*< private >*/
_HB_OT_META_TAG_MAX_VALUE = HB_TAG_MAX_SIGNED /*< skip >*/
} hb_ot_meta_tag_t;
HB_EXTERN unsigned int
hb_ot_meta_get_entry_tags (hb_face_t *face,
unsigned int start_offset,
unsigned int *entries_count, /* IN/OUT. May be NULL. */
hb_ot_meta_tag_t *entries /* OUT. May be NULL. */);
HB_EXTERN hb_blob_t *
hb_ot_meta_reference_entry (hb_face_t *face, hb_ot_meta_tag_t meta_tag);
HB_END_DECLS
#endif /* HB_OT_META_H */