diff options
Diffstat (limited to 'src/hb-ot-layout.h')
| -rw-r--r-- | src/hb-ot-layout.h | 118 |
1 files changed, 85 insertions, 33 deletions
diff --git a/src/hb-ot-layout.h b/src/hb-ot-layout.h index 0278796..e473954 100644 --- a/src/hb-ot-layout.h +++ b/src/hb-ot-layout.h @@ -33,7 +33,7 @@ #include "hb.h" -#include "hb-ot-tag.h" +#include "hb-ot-name.h" HB_BEGIN_DECLS @@ -46,6 +46,47 @@ HB_BEGIN_DECLS /* + * Script & Language tags. + */ + +#define HB_OT_TAG_DEFAULT_SCRIPT HB_TAG ('D', 'F', 'L', 'T') +#define HB_OT_TAG_DEFAULT_LANGUAGE HB_TAG ('d', 'f', 'l', 't') + +/** + * HB_OT_MAX_TAGS_PER_SCRIPT: + * + * Since: 2.0.0 + **/ +#define HB_OT_MAX_TAGS_PER_SCRIPT 3u +/** + * HB_OT_MAX_TAGS_PER_LANGUAGE: + * + * Since: 2.0.0 + **/ +#define HB_OT_MAX_TAGS_PER_LANGUAGE 3u + +HB_EXTERN void +hb_ot_tags_from_script_and_language (hb_script_t script, + hb_language_t language, + unsigned int *script_count /* IN/OUT */, + hb_tag_t *script_tags /* OUT */, + unsigned int *language_count /* IN/OUT */, + hb_tag_t *language_tags /* OUT */); + +HB_EXTERN hb_script_t +hb_ot_tag_to_script (hb_tag_t tag); + +HB_EXTERN hb_language_t +hb_ot_tag_to_language (hb_tag_t tag); + +HB_EXTERN void +hb_ot_tags_to_script_and_language (hb_tag_t script_tag, + hb_tag_t language_tag, + hb_script_t *script /* OUT */, + hb_language_t *language /* OUT */); + + +/* * GDEF */ @@ -111,13 +152,13 @@ hb_ot_layout_table_find_script (hb_face_t *face, hb_tag_t script_tag, unsigned int *script_index); -/* Like find_script, but takes zero-terminated array of scripts to test */ HB_EXTERN hb_bool_t -hb_ot_layout_table_choose_script (hb_face_t *face, +hb_ot_layout_table_select_script (hb_face_t *face, hb_tag_t table_tag, + unsigned int script_count, const hb_tag_t *script_tags, - unsigned int *script_index, - hb_tag_t *chosen_script); + unsigned int *script_index /* OUT */, + hb_tag_t *chosen_script /* OUT */); HB_EXTERN unsigned int hb_ot_layout_table_get_feature_tags (hb_face_t *face, @@ -135,11 +176,12 @@ hb_ot_layout_script_get_language_tags (hb_face_t *face, hb_tag_t *language_tags /* OUT */); HB_EXTERN hb_bool_t -hb_ot_layout_script_find_language (hb_face_t *face, - hb_tag_t table_tag, - unsigned int script_index, - hb_tag_t language_tag, - unsigned int *language_index); +hb_ot_layout_script_select_language (hb_face_t *face, + hb_tag_t table_tag, + unsigned int script_index, + unsigned int language_count, + const hb_tag_t *language_tags, + unsigned int *language_index /* OUT */); HB_EXTERN hb_bool_t hb_ot_layout_language_get_required_feature_index (hb_face_t *face, @@ -194,6 +236,13 @@ HB_EXTERN unsigned int hb_ot_layout_table_get_lookup_count (hb_face_t *face, hb_tag_t table_tag); +HB_EXTERN void +hb_ot_layout_collect_features (hb_face_t *face, + hb_tag_t table_tag, + const hb_tag_t *scripts, + const hb_tag_t *languages, + const hb_tag_t *features, + hb_set_t *feature_indexes /* OUT */); HB_EXTERN void hb_ot_layout_collect_lookups (hb_face_t *face, @@ -207,10 +256,10 @@ HB_EXTERN void hb_ot_layout_lookup_collect_glyphs (hb_face_t *face, hb_tag_t table_tag, unsigned int lookup_index, - hb_set_t *glyphs_before, /* OUT. May be NULL */ - hb_set_t *glyphs_input, /* OUT. May be NULL */ - hb_set_t *glyphs_after, /* OUT. May be NULL */ - hb_set_t *glyphs_output /* OUT. May be NULL */); + hb_set_t *glyphs_before, /* OUT. May be NULL */ + hb_set_t *glyphs_input, /* OUT. May be NULL */ + hb_set_t *glyphs_after, /* OUT. May be NULL */ + hb_set_t *glyphs_output /* OUT. May be NULL */); #ifdef HB_NOT_IMPLEMENTED typedef struct @@ -315,29 +364,32 @@ Xhb_ot_layout_lookup_position (hb_font_t *font, /* Optical 'size' feature info. Returns true if found. * https://docs.microsoft.com/en-us/typography/opentype/spec/features_pt#size */ HB_EXTERN hb_bool_t -hb_ot_layout_get_size_params (hb_face_t *face, - unsigned int *design_size, /* OUT. May be NULL */ - unsigned int *subfamily_id, /* OUT. May be NULL */ - unsigned int *subfamily_name_id, /* OUT. May be NULL */ - unsigned int *range_start, /* OUT. May be NULL */ - unsigned int *range_end /* OUT. May be NULL */); - +hb_ot_layout_get_size_params (hb_face_t *face, + unsigned int *design_size, /* OUT. May be NULL */ + unsigned int *subfamily_id, /* OUT. May be NULL */ + hb_ot_name_id_t *subfamily_name_id, /* OUT. May be NULL */ + unsigned int *range_start, /* OUT. May be NULL */ + unsigned int *range_end /* OUT. May be NULL */); -/* - * BASE - */ -#if 0 -#define HB_OT_TAG_BASE_HANG HB_TAG('h','a','n','g') -#define HB_OT_TAG_BASE_ICFB HB_TAG('i','c','f','b') -#define HB_OT_TAG_BASE_ICFT HB_TAG('i','c','f','t') -#define HB_OT_TAG_BASE_IDEO HB_TAG('i','d','e','o') -#define HB_OT_TAG_BASE_IDTB HB_TAG('i','d','t','b') -#define HB_OT_TAG_BASE_MATH HB_TAG('m','a','t','h') -#define HB_OT_TAG_BASE_ROMN HB_TAG('r','o','m','n') +HB_EXTERN hb_bool_t +hb_ot_layout_feature_get_name_ids (hb_face_t *face, + hb_tag_t table_tag, + unsigned int feature_index, + hb_ot_name_id_t *label_id /* OUT. May be NULL */, + hb_ot_name_id_t *tooltip_id /* OUT. May be NULL */, + hb_ot_name_id_t *sample_id /* OUT. May be NULL */, + unsigned int *num_named_parameters /* OUT. May be NULL */, + hb_ot_name_id_t *first_param_id /* OUT. May be NULL */); -#endif +HB_EXTERN unsigned int +hb_ot_layout_feature_get_characters (hb_face_t *face, + hb_tag_t table_tag, + unsigned int feature_index, + unsigned int start_offset, + unsigned int *char_count /* IN/OUT. May be NULL */, + hb_codepoint_t *characters /* OUT. May be NULL */); HB_END_DECLS |