| Top | Description |
#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;
void hb_buffer_add (hb_buffer_t *buffer,hb_codepoint_t codepoint,unsigned int cluster);
|
a buffer. |
Since 1.0
void hb_buffer_add_utf16 (hb_buffer_t *buffer,const uint16_t *text,int text_length,unsigned int item_offset,int item_length);
|
a buffer. |
|
. [array length=text_length] |
Since 1.0
void hb_buffer_add_utf32 (hb_buffer_t *buffer,const uint32_t *text,int text_length,unsigned int item_offset,int item_length);
|
a buffer. |
|
. [array length=text_length] |
Since 1.0
void hb_buffer_add_utf8 (hb_buffer_t *buffer,const char *text,int text_length,unsigned int item_offset,int item_length);
|
a buffer. |
|
. [array length=text_length] |
Since 1.0
hb_bool_t hb_buffer_allocation_successful (hb_buffer_t *buffer);
|
a buffer. |
Since 1.0
void hb_buffer_clear_contents (hb_buffer_t *buffer);
|
a buffer. |
Since 1.0
typedef enum {
HB_BUFFER_CONTENT_TYPE_INVALID = 0,
HB_BUFFER_CONTENT_TYPE_UNICODE,
HB_BUFFER_CONTENT_TYPE_GLYPHS
} hb_buffer_content_type_t;
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);
|
a buffer. |
|
. [array length=buf_len] |
|
. [out] |
Since 1.0
typedef enum {
/*< flags >*/
HB_BUFFER_FLAG_DEFAULT = 0x00000000u,
HB_BUFFER_FLAG_BOT = 0x00000001u, /* Beginning-of-text */
HB_BUFFER_FLAG_EOT = 0x00000002u, /* End-of-text */
HB_BUFFER_FLAG_PRESERVE_DEFAULT_IGNORABLES = 0x00000004u
} hb_buffer_flags_t;
hb_buffer_content_type_t hb_buffer_get_content_type (hb_buffer_t *buffer);
|
a buffer. |
Since 1.0
hb_direction_t hb_buffer_get_direction (hb_buffer_t *buffer);
|
a buffer. |
Since 1.0
hb_buffer_t * hb_buffer_get_empty (void);
Returns : |
. [transfer full] |
Since 1.0
hb_buffer_flags_t hb_buffer_get_flags (hb_buffer_t *buffer);
|
a buffer. |
Since 1.0
hb_glyph_info_t * hb_buffer_get_glyph_infos (hb_buffer_t *buffer,unsigned int *length);
Returns buffer glyph information array. Returned pointer is valid as long as buffer contents are not modified.
|
a buffer. |
|
output array length. [out] |
Returns : |
buffer glyph information array. [transfer none][array length=length] |
Since 1.0
hb_glyph_position_t * hb_buffer_get_glyph_positions (hb_buffer_t *buffer,unsigned int *length);
Returns buffer glyph position array. Returned pointer is valid as long as buffer contents are not modified.
|
a buffer. |
|
output length. [out] |
Returns : |
buffer glyph position array. [transfer none][array length=length] |
Since 1.0
hb_language_t hb_buffer_get_language (hb_buffer_t *buffer);
|
a buffer. |
Since 1.0
unsigned int hb_buffer_get_length (hb_buffer_t *buffer);
Returns the number of items in the buffer.
|
a buffer. |
Returns : |
buffer length. |
Since 1.0
hb_script_t hb_buffer_get_script (hb_buffer_t *buffer);
|
a buffer. |
Since 1.0
void hb_buffer_get_segment_properties (hb_buffer_t *buffer,hb_segment_properties_t *props);
|
a buffer. |
Since 1.0
hb_unicode_funcs_t * hb_buffer_get_unicode_funcs (hb_buffer_t *buffer);
|
a buffer. |
Since 1.0
void * hb_buffer_get_user_data (hb_buffer_t *buffer,hb_user_data_key_t *key);
|
a buffer. |
Since 1.0
void hb_buffer_guess_segment_properties (hb_buffer_t *buffer);
Sets unset buffer segment properties based on buffer Unicode
contents. If buffer is not empty, it must have content type
HB_BUFFER_CONTENT_TYPE_UNICODE.
If buffer script is not set (ie. is HB_SCRIPT_INVALID), it
will be set to the Unicode script of the first character in
the buffer that has a script other than HB_SCRIPT_COMMON,
HB_SCRIPT_INHERITED, and HB_SCRIPT_UNKNOWN.
Next, if buffer direction is not set (ie. is HB_DIRECTION_INVALID),
it will be set to the natural horizontal direction of the
buffer script as returned by hb_script_get_horizontal_direction().
Finally, if buffer language is not set (ie. is HB_LANGUAGE_INVALID),
it will be set to the process's default language as returned by
hb_language_get_default(). This may change in the future by
taking buffer script into consideration when choosing a language.
|
a buffer. |
Since 1.0
void hb_buffer_normalize_glyphs (hb_buffer_t *buffer);
|
a buffer. |
Since 1.0
hb_bool_t hb_buffer_pre_allocate (hb_buffer_t *buffer,unsigned int size);
|
a buffer. |
Since 1.0
hb_buffer_t * hb_buffer_reference (hb_buffer_t *buffer);
|
a buffer. |
Returns : |
. [transfer full] |
Since 1.0
void hb_buffer_reverse (hb_buffer_t *buffer);
Reverses buffer contents.
|
a buffer. |
Since 1.0
void hb_buffer_reverse_clusters (hb_buffer_t *buffer);
Reverses buffer clusters. That is, the buffer contents are reversed, then each cluster (consecutive items having the same cluster number) are reversed again.
|
a buffer. |
Since 1.0
typedef enum {
/*< flags >*/
HB_BUFFER_SERIALIZE_FLAG_DEFAULT = 0x00000000u,
HB_BUFFER_SERIALIZE_FLAG_NO_CLUSTERS = 0x00000001u,
HB_BUFFER_SERIALIZE_FLAG_NO_POSITIONS = 0x00000002u,
HB_BUFFER_SERIALIZE_FLAG_NO_GLYPH_NAMES = 0x00000004u
} hb_buffer_serialize_flags_t;
hb_buffer_serialize_format_t hb_buffer_serialize_format_from_string (const char *str,int len);
Since 1.0
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;
const char * hb_buffer_serialize_format_to_string
(hb_buffer_serialize_format_t format);
Since 1.0
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);
|
a buffer. |
|
. [array length=buf_size] |
|
. [out] |
Since 1.0
const char ** hb_buffer_serialize_list_formats (void);
Returns : |
. [transfer none] |
Since 1.0
void hb_buffer_set_content_type (hb_buffer_t *buffer,hb_buffer_content_type_t content_type);
|
a buffer. |
Since 1.0
void hb_buffer_set_direction (hb_buffer_t *buffer,hb_direction_t direction);
|
a buffer. |
Since 1.0
void hb_buffer_set_flags (hb_buffer_t *buffer,hb_buffer_flags_t flags);
|
a buffer. |
Since 1.0
void hb_buffer_set_language (hb_buffer_t *buffer,hb_language_t language);
|
a buffer. |
Since 1.0
hb_bool_t hb_buffer_set_length (hb_buffer_t *buffer,unsigned int length);
|
a buffer. |
Since 1.0
void hb_buffer_set_script (hb_buffer_t *buffer,hb_script_t script);
|
a buffer. |
Since 1.0
void hb_buffer_set_segment_properties (hb_buffer_t *buffer,const hb_segment_properties_t *props);
|
a buffer. |
Since 1.0
void hb_buffer_set_unicode_funcs (hb_buffer_t *buffer,hb_unicode_funcs_t *unicode_funcs);
|
a buffer. |
Since 1.0
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);
|
a buffer. |
Since 1.0
typedef struct {
hb_codepoint_t codepoint;
hb_mask_t mask;
uint32_t cluster;
} hb_glyph_info_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_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);