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hb-ot-layout

hb-ot-layout

Description

Functions

hb_ot_layout_collect_lookups ()

void
hb_ot_layout_collect_lookups (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 *lookup_indexes);

Since: 0.9.8


hb_ot_layout_feature_get_lookups ()

unsigned int
hb_ot_layout_feature_get_lookups (hb_face_t *face,
                                  hb_tag_t table_tag,
                                  unsigned int feature_index,
                                  unsigned int start_offset,
                                  unsigned int *lookup_count,
                                  unsigned int *lookup_indexes);

Since: 0.9.7


hb_ot_layout_feature_with_variations_get_lookups ()

unsigned int
hb_ot_layout_feature_with_variations_get_lookups
                               (hb_face_t *face,
                                hb_tag_t table_tag,
                                unsigned int feature_index,
                                unsigned int variations_index,
                                unsigned int start_offset,
                                unsigned int *lookup_count,
                                unsigned int *lookup_indexes);

hb_ot_layout_get_attach_points ()

unsigned int
hb_ot_layout_get_attach_points (hb_face_t *face,
                                hb_codepoint_t glyph,
                                unsigned int start_offset,
                                unsigned int *point_count,
                                unsigned int *point_array);

hb_ot_layout_get_glyph_class ()

hb_ot_layout_glyph_class_t
hb_ot_layout_get_glyph_class (hb_face_t *face,
                              hb_codepoint_t glyph);

Since: 0.9.7


hb_ot_layout_get_glyphs_in_class ()

void
hb_ot_layout_get_glyphs_in_class (hb_face_t *face,
                                  hb_ot_layout_glyph_class_t klass,
                                  hb_set_t *glyphs);

Since: 0.9.7


hb_ot_layout_get_ligature_carets ()

unsigned int
hb_ot_layout_get_ligature_carets (hb_font_t *font,
                                  hb_direction_t direction,
                                  hb_codepoint_t glyph,
                                  unsigned int start_offset,
                                  unsigned int *caret_count,
                                  hb_position_t *caret_array);

hb_ot_layout_get_size_params ()

hb_bool_t
hb_ot_layout_get_size_params (hb_face_t *face,
                              unsigned int *design_size,
                              unsigned int *subfamily_id,
                              unsigned int *subfamily_name_id,
                              unsigned int *range_start,
                              unsigned int *range_end);

Since: 0.9.10


hb_ot_layout_glyph_sequence_func_t ()

hb_bool_t
(*hb_ot_layout_glyph_sequence_func_t) (hb_font_t *font,
                                       hb_tag_t table_tag,
                                       unsigned int lookup_index,
                                       const hb_ot_layout_glyph_sequence_t *sequence,
                                       void *user_data);

hb_ot_layout_has_glyph_classes ()

hb_bool_t
hb_ot_layout_has_glyph_classes (hb_face_t *face);

hb_ot_layout_has_positioning ()

hb_bool_t
hb_ot_layout_has_positioning (hb_face_t *face);

hb_ot_layout_has_substitution ()

hb_bool_t
hb_ot_layout_has_substitution (hb_face_t *face);

hb_ot_layout_language_find_feature ()

hb_bool_t
hb_ot_layout_language_find_feature (hb_face_t *face,
                                    hb_tag_t table_tag,
                                    unsigned int script_index,
                                    unsigned int language_index,
                                    hb_tag_t feature_tag,
                                    unsigned int *feature_index);

hb_ot_layout_language_get_feature_indexes ()

unsigned int
hb_ot_layout_language_get_feature_indexes
                               (hb_face_t *face,
                                hb_tag_t table_tag,
                                unsigned int script_index,
                                unsigned int language_index,
                                unsigned int start_offset,
                                unsigned int *feature_count,
                                unsigned int *feature_indexes);

hb_ot_layout_language_get_feature_tags ()

unsigned int
hb_ot_layout_language_get_feature_tags
                               (hb_face_t *face,
                                hb_tag_t table_tag,
                                unsigned int script_index,
                                unsigned int language_index,
                                unsigned int start_offset,
                                unsigned int *feature_count,
                                hb_tag_t *feature_tags);

hb_ot_layout_language_get_required_feature ()

hb_bool_t
hb_ot_layout_language_get_required_feature
                               (hb_face_t *face,
                                hb_tag_t table_tag,
                                unsigned int script_index,
                                unsigned int language_index,
                                unsigned int *feature_index,
                                hb_tag_t *feature_tag);

Since: 0.9.30


hb_ot_layout_lookup_collect_glyphs ()

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,
                                    hb_set_t *glyphs_input,
                                    hb_set_t *glyphs_after,
                                    hb_set_t *glyphs_output);

Since: 0.9.7


hb_ot_layout_lookup_substitute_closure ()

void
hb_ot_layout_lookup_substitute_closure
                               (hb_face_t *face,
                                unsigned int lookup_index,
                                hb_set_t *glyphs);

Since: 0.9.7


hb_ot_layout_lookup_would_substitute ()

hb_bool_t
hb_ot_layout_lookup_would_substitute (hb_face_t *face,
                                      unsigned int lookup_index,
                                      const hb_codepoint_t *glyphs,
                                      unsigned int glyphs_length,
                                      hb_bool_t zero_context);

Since: 0.9.7


hb_ot_layout_script_find_language ()

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_get_language_tags ()

unsigned int
hb_ot_layout_script_get_language_tags (hb_face_t *face,
                                       hb_tag_t table_tag,
                                       unsigned int script_index,
                                       unsigned int start_offset,
                                       unsigned int *language_count,
                                       hb_tag_t *language_tags);

hb_ot_layout_table_choose_script ()

hb_bool_t
hb_ot_layout_table_choose_script (hb_face_t *face,
                                  hb_tag_t table_tag,
                                  const hb_tag_t *script_tags,
                                  unsigned int *script_index,
                                  hb_tag_t *chosen_script);

hb_ot_layout_table_find_feature_variations ()

hb_bool_t
hb_ot_layout_table_find_feature_variations
                               (hb_face_t *face,
                                hb_tag_t table_tag,
                                const int *coords,
                                unsigned int num_coords,
                                unsigned int *variations_index);

hb_ot_layout_table_find_script ()

hb_bool_t
hb_ot_layout_table_find_script (hb_face_t *face,
                                hb_tag_t table_tag,
                                hb_tag_t script_tag,
                                unsigned int *script_index);

hb_ot_layout_table_get_feature_tags ()

unsigned int
hb_ot_layout_table_get_feature_tags (hb_face_t *face,
                                     hb_tag_t table_tag,
                                     unsigned int start_offset,
                                     unsigned int *feature_count,
                                     hb_tag_t *feature_tags);

hb_ot_layout_table_get_script_tags ()

unsigned int
hb_ot_layout_table_get_script_tags (hb_face_t *face,
                                    hb_tag_t table_tag,
                                    unsigned int start_offset,
                                    unsigned int *script_count,
                                    hb_tag_t *script_tags);

hb_ot_layout_table_get_lookup_count ()

unsigned int
hb_ot_layout_table_get_lookup_count (hb_face_t *face,
                                     hb_tag_t table_tag);

Since: 0.9.22


hb_ot_shape_plan_collect_lookups ()

void
hb_ot_shape_plan_collect_lookups (hb_shape_plan_t *shape_plan,
                                  hb_tag_t table_tag,
                                  hb_set_t *lookup_indexes);

Since: 0.9.7


hb_ot_layout_language_get_required_feature_index ()

hb_bool_t
hb_ot_layout_language_get_required_feature_index
                               (hb_face_t *face,
                                hb_tag_t table_tag,
                                unsigned int script_index,
                                unsigned int language_index,
                                unsigned int *feature_index);

Types and Values

HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX

#define HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX 0xFFFFu

HB_OT_LAYOUT_NO_FEATURE_INDEX

#define HB_OT_LAYOUT_NO_FEATURE_INDEX		0xFFFFu

HB_OT_LAYOUT_NO_SCRIPT_INDEX

#define HB_OT_LAYOUT_NO_SCRIPT_INDEX		0xFFFFu

HB_OT_LAYOUT_NO_VARIATIONS_INDEX

#define HB_OT_LAYOUT_NO_VARIATIONS_INDEX 0xFFFFFFFFu

HB_OT_TAG_GDEF

#define HB_OT_TAG_GDEF HB_TAG('G','D','E','F')

HB_OT_TAG_GPOS

#define HB_OT_TAG_GPOS HB_TAG('G','P','O','S')

HB_OT_TAG_GSUB

#define HB_OT_TAG_GSUB HB_TAG('G','S','U','B')

HB_OT_TAG_JSTF

#define HB_OT_TAG_JSTF HB_TAG('J','S','T','F')

enum hb_ot_layout_glyph_class_t

Members

HB_OT_LAYOUT_GLYPH_CLASS_UNCLASSIFIED

   

HB_OT_LAYOUT_GLYPH_CLASS_BASE_GLYPH

   

HB_OT_LAYOUT_GLYPH_CLASS_LIGATURE

   

HB_OT_LAYOUT_GLYPH_CLASS_MARK

   

HB_OT_LAYOUT_GLYPH_CLASS_COMPONENT

   
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