Synopsis
#define HB_SEGMENT_PROPERTIES_DEFAULT
void hb_buffer_add (hb_buffer_t *buffer,
hb_codepoint_t codepoint,
unsigned int cluster);
void hb_buffer_add_utf16 (hb_buffer_t *buffer,
const uint16_t *text,
int text_length,
unsigned int item_offset,
int item_length);
void hb_buffer_add_utf32 (hb_buffer_t *buffer,
const uint32_t *text,
int text_length,
unsigned int item_offset,
int item_length);
void hb_buffer_add_utf8 (hb_buffer_t *buffer,
const char *text,
int text_length,
unsigned int item_offset,
int item_length);
hb_bool_t hb_buffer_allocation_successful (hb_buffer_t *buffer);
void hb_buffer_clear_contents (hb_buffer_t *buffer);
enum hb_buffer_content_type_t;
hb_buffer_t * hb_buffer_create (void);
hb_bool_t hb_buffer_deserialize_glyphs (hb_buffer_t *buffer,
const char *buf,
int buf_len,
const char **end_ptr,
hb_font_t *font,
hb_buffer_serialize_format_t format);
void hb_buffer_destroy (hb_buffer_t *buffer);
enum hb_buffer_flags_t;
hb_buffer_content_type_t hb_buffer_get_content_type (hb_buffer_t *buffer);
hb_direction_t hb_buffer_get_direction (hb_buffer_t *buffer);
hb_buffer_t * hb_buffer_get_empty (void);
hb_buffer_flags_t hb_buffer_get_flags (hb_buffer_t *buffer);
hb_glyph_info_t * hb_buffer_get_glyph_infos (hb_buffer_t *buffer,
unsigned int *length);
hb_glyph_position_t * hb_buffer_get_glyph_positions (hb_buffer_t *buffer,
unsigned int *length);
hb_language_t hb_buffer_get_language (hb_buffer_t *buffer);
unsigned int hb_buffer_get_length (hb_buffer_t *buffer);
hb_script_t hb_buffer_get_script (hb_buffer_t *buffer);
void hb_buffer_get_segment_properties (hb_buffer_t *buffer,
hb_segment_properties_t *props);
hb_unicode_funcs_t * hb_buffer_get_unicode_funcs (hb_buffer_t *buffer);
void * hb_buffer_get_user_data (hb_buffer_t *buffer,
hb_user_data_key_t *key);
void hb_buffer_guess_segment_properties (hb_buffer_t *buffer);
void hb_buffer_normalize_glyphs (hb_buffer_t *buffer);
hb_bool_t hb_buffer_pre_allocate (hb_buffer_t *buffer,
unsigned int size);
hb_buffer_t * hb_buffer_reference (hb_buffer_t *buffer);
void hb_buffer_reset (hb_buffer_t *buffer);
void hb_buffer_reverse (hb_buffer_t *buffer);
void hb_buffer_reverse_clusters (hb_buffer_t *buffer);
enum hb_buffer_serialize_flags_t;
hb_buffer_serialize_format_t hb_buffer_serialize_format_from_string
(const char *str,
int len);
enum hb_buffer_serialize_format_t;
const char * hb_buffer_serialize_format_to_string
(hb_buffer_serialize_format_t format);
unsigned int hb_buffer_serialize_glyphs (hb_buffer_t *buffer,
unsigned int start,
unsigned int end,
char *buf,
unsigned int buf_size,
unsigned int *buf_consumed,
hb_font_t *font,
hb_buffer_serialize_format_t format,
hb_buffer_serialize_flags_t flags);
const char ** hb_buffer_serialize_list_formats (void);
void hb_buffer_set_content_type (hb_buffer_t *buffer,
hb_buffer_content_type_t content_type);
void hb_buffer_set_direction (hb_buffer_t *buffer,
hb_direction_t direction);
void hb_buffer_set_flags (hb_buffer_t *buffer,
hb_buffer_flags_t flags);
void hb_buffer_set_language (hb_buffer_t *buffer,
hb_language_t language);
hb_bool_t hb_buffer_set_length (hb_buffer_t *buffer,
unsigned int length);
void hb_buffer_set_script (hb_buffer_t *buffer,
hb_script_t script);
void hb_buffer_set_segment_properties (hb_buffer_t *buffer,
const hb_segment_properties_t *props);
void hb_buffer_set_unicode_funcs (hb_buffer_t *buffer,
hb_unicode_funcs_t *unicode_funcs);
hb_bool_t hb_buffer_set_user_data (hb_buffer_t *buffer,
hb_user_data_key_t *key,
void *data,
hb_destroy_func_t destroy,
hb_bool_t replace);
typedef hb_buffer_t;
hb_glyph_info_t;
hb_glyph_position_t;
hb_bool_t hb_segment_properties_equal (const hb_segment_properties_t *a,
const hb_segment_properties_t *b);
unsigned int hb_segment_properties_hash (const hb_segment_properties_t *p);
hb_segment_properties_t;
Object Hierarchy
GEnum
+----hb_buffer_content_type_t
GFlags
+----hb_buffer_flags_t
GFlags
+----hb_buffer_serialize_flags_t
GEnum
+----hb_buffer_serialize_format_t
GBoxed
+----hb_buffer_t
GBoxed
+----hb_glyph_info_t
GBoxed
+----hb_glyph_position_t
GBoxed
+----hb_segment_properties_t
Details
HB_SEGMENT_PROPERTIES_DEFAULT
#define HB_SEGMENT_PROPERTIES_DEFAULT
hb_buffer_add_utf16 ()
void hb_buffer_add_utf16 (hb_buffer_t *buffer,
const uint16_t *text,
int text_length,
unsigned int item_offset,
int item_length);
hb_buffer_add_utf32 ()
void hb_buffer_add_utf32 (hb_buffer_t *buffer,
const uint32_t *text,
int text_length,
unsigned int item_offset,
int item_length);
hb_buffer_add_utf8 ()
void hb_buffer_add_utf8 (hb_buffer_t *buffer,
const char *text,
int text_length,
unsigned int item_offset,
int item_length);
hb_buffer_clear_contents ()
void hb_buffer_clear_contents (hb_buffer_t *buffer);
enum hb_buffer_content_type_t
typedef enum {
HB_BUFFER_CONTENT_TYPE_INVALID = 0,
HB_BUFFER_CONTENT_TYPE_UNICODE,
HB_BUFFER_CONTENT_TYPE_GLYPHS
} hb_buffer_content_type_t;
HB_BUFFER_CONTENT_TYPE_INVALID
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HB_BUFFER_CONTENT_TYPE_UNICODE
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HB_BUFFER_CONTENT_TYPE_GLYPHS
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hb_buffer_create ()
hb_buffer_t * hb_buffer_create (void);
hb_buffer_destroy ()
void hb_buffer_destroy (hb_buffer_t *buffer);
enum hb_buffer_flags_t
typedef enum {
/*< flags >*/
HB_BUFFER_FLAG_DEFAULT = 0x00000000,
HB_BUFFER_FLAG_BOT = 0x00000001, /* Beginning-of-text */
HB_BUFFER_FLAG_EOT = 0x00000002, /* End-of-text */
HB_BUFFER_FLAG_PRESERVE_DEFAULT_IGNORABLES = 0x00000004
} hb_buffer_flags_t;
HB_BUFFER_FLAG_DEFAULT
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HB_BUFFER_FLAG_BOT
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HB_BUFFER_FLAG_EOT
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HB_BUFFER_FLAG_PRESERVE_DEFAULT_IGNORABLES
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hb_buffer_get_empty ()
hb_buffer_t * hb_buffer_get_empty (void);
hb_buffer_get_length ()
unsigned int hb_buffer_get_length (hb_buffer_t *buffer);
hb_buffer_guess_segment_properties ()
void hb_buffer_guess_segment_properties (hb_buffer_t *buffer);
hb_buffer_normalize_glyphs ()
void hb_buffer_normalize_glyphs (hb_buffer_t *buffer);
hb_buffer_pre_allocate ()
hb_bool_t hb_buffer_pre_allocate (hb_buffer_t *buffer,
unsigned int size);
hb_buffer_reset ()
void hb_buffer_reset (hb_buffer_t *buffer);
hb_buffer_reverse ()
void hb_buffer_reverse (hb_buffer_t *buffer);
hb_buffer_reverse_clusters ()
void hb_buffer_reverse_clusters (hb_buffer_t *buffer);
enum hb_buffer_serialize_flags_t
typedef enum {
/*< flags >*/
HB_BUFFER_SERIALIZE_FLAG_DEFAULT = 0x00000000,
HB_BUFFER_SERIALIZE_FLAG_NO_CLUSTERS = 0x00000001,
HB_BUFFER_SERIALIZE_FLAG_NO_POSITIONS = 0x00000002,
HB_BUFFER_SERIALIZE_FLAG_NO_GLYPH_NAMES = 0x00000004
} hb_buffer_serialize_flags_t;
HB_BUFFER_SERIALIZE_FLAG_DEFAULT
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HB_BUFFER_SERIALIZE_FLAG_NO_CLUSTERS
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HB_BUFFER_SERIALIZE_FLAG_NO_POSITIONS
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HB_BUFFER_SERIALIZE_FLAG_NO_GLYPH_NAMES
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enum hb_buffer_serialize_format_t
typedef enum {
HB_BUFFER_SERIALIZE_FORMAT_TEXT = HB_TAG('T','E','X','T'),
HB_BUFFER_SERIALIZE_FORMAT_JSON = HB_TAG('J','S','O','N'),
HB_BUFFER_SERIALIZE_FORMAT_INVALID = HB_TAG_NONE
} hb_buffer_serialize_format_t;
HB_BUFFER_SERIALIZE_FORMAT_TEXT
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HB_BUFFER_SERIALIZE_FORMAT_JSON
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HB_BUFFER_SERIALIZE_FORMAT_INVALID
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hb_buffer_serialize_list_formats ()
const char ** hb_buffer_serialize_list_formats (void);
hb_buffer_t
typedef struct hb_buffer_t hb_buffer_t;
hb_glyph_info_t
typedef struct {
hb_codepoint_t codepoint;
hb_mask_t mask;
uint32_t cluster;
} hb_glyph_info_t;
hb_glyph_position_t
typedef struct {
hb_position_t x_advance;
hb_position_t y_advance;
hb_position_t x_offset;
hb_position_t y_offset;
} hb_glyph_position_t;
hb_segment_properties_t
typedef struct {
hb_direction_t direction;
hb_script_t script;
hb_language_t language;
} hb_segment_properties_t;