hb-ot-metrics.h File Reference

#include "hb.h"
#include "hb-ot-name.h"

Go to the source code of this file.

Enumerations
enum	hb_ot_metrics_tag_t {   HB_OT_METRICS_TAG_HORIZONTAL_ASCENDER = HB_TAG ('h','a','s','c') , HB_OT_METRICS_TAG_HORIZONTAL_DESCENDER = HB_TAG ('h','d','s','c') , HB_OT_METRICS_TAG_HORIZONTAL_LINE_GAP = HB_TAG ('h','l','g','p') , HB_OT_METRICS_TAG_HORIZONTAL_CLIPPING_ASCENT = HB_TAG ('h','c','l','a') ,   HB_OT_METRICS_TAG_HORIZONTAL_CLIPPING_DESCENT = HB_TAG ('h','c','l','d') , HB_OT_METRICS_TAG_VERTICAL_ASCENDER = HB_TAG ('v','a','s','c') , HB_OT_METRICS_TAG_VERTICAL_DESCENDER = HB_TAG ('v','d','s','c') , HB_OT_METRICS_TAG_VERTICAL_LINE_GAP = HB_TAG ('v','l','g','p') ,   HB_OT_METRICS_TAG_HORIZONTAL_CARET_RISE = HB_TAG ('h','c','r','s') , HB_OT_METRICS_TAG_HORIZONTAL_CARET_RUN = HB_TAG ('h','c','r','n') , HB_OT_METRICS_TAG_HORIZONTAL_CARET_OFFSET = HB_TAG ('h','c','o','f') , HB_OT_METRICS_TAG_VERTICAL_CARET_RISE = HB_TAG ('v','c','r','s') ,   HB_OT_METRICS_TAG_VERTICAL_CARET_RUN = HB_TAG ('v','c','r','n') , HB_OT_METRICS_TAG_VERTICAL_CARET_OFFSET = HB_TAG ('v','c','o','f') , HB_OT_METRICS_TAG_X_HEIGHT = HB_TAG ('x','h','g','t') , HB_OT_METRICS_TAG_CAP_HEIGHT = HB_TAG ('c','p','h','t') ,   HB_OT_METRICS_TAG_SUBSCRIPT_EM_X_SIZE = HB_TAG ('s','b','x','s') , HB_OT_METRICS_TAG_SUBSCRIPT_EM_Y_SIZE = HB_TAG ('s','b','y','s') , HB_OT_METRICS_TAG_SUBSCRIPT_EM_X_OFFSET = HB_TAG ('s','b','x','o') , HB_OT_METRICS_TAG_SUBSCRIPT_EM_Y_OFFSET = HB_TAG ('s','b','y','o') ,   HB_OT_METRICS_TAG_SUPERSCRIPT_EM_X_SIZE = HB_TAG ('s','p','x','s') , HB_OT_METRICS_TAG_SUPERSCRIPT_EM_Y_SIZE = HB_TAG ('s','p','y','s') , HB_OT_METRICS_TAG_SUPERSCRIPT_EM_X_OFFSET = HB_TAG ('s','p','x','o') , HB_OT_METRICS_TAG_SUPERSCRIPT_EM_Y_OFFSET = HB_TAG ('s','p','y','o') ,   HB_OT_METRICS_TAG_STRIKEOUT_SIZE = HB_TAG ('s','t','r','s') , HB_OT_METRICS_TAG_STRIKEOUT_OFFSET = HB_TAG ('s','t','r','o') , HB_OT_METRICS_TAG_UNDERLINE_SIZE = HB_TAG ('u','n','d','s') , HB_OT_METRICS_TAG_UNDERLINE_OFFSET = HB_TAG ('u','n','d','o') ,   _HB_OT_METRICS_TAG_MAX_VALUE = HB_TAG_MAX_SIGNED }

Functions
HB_EXTERN hb_bool_t	hb_ot_metrics_get_position (hb_font_t *font, hb_ot_metrics_tag_t metrics_tag, hb_position_t *position)
HB_EXTERN void	hb_ot_metrics_get_position_with_fallback (hb_font_t *font, hb_ot_metrics_tag_t metrics_tag, hb_position_t *position)
HB_EXTERN float	hb_ot_metrics_get_variation (hb_font_t *font, hb_ot_metrics_tag_t metrics_tag)
HB_EXTERN hb_position_t	hb_ot_metrics_get_x_variation (hb_font_t *font, hb_ot_metrics_tag_t metrics_tag)
HB_EXTERN hb_position_t	hb_ot_metrics_get_y_variation (hb_font_t *font, hb_ot_metrics_tag_t metrics_tag)

Enumeration Type Documentation

hb_ot_metrics_tag_t

enum hb_ot_metrics_tag_t

hb_ot_metrics_tag_t: @HB_OT_METRICS_TAG_HORIZONTAL_ASCENDER: horizontal ascender. @HB_OT_METRICS_TAG_HORIZONTAL_DESCENDER: horizontal descender. @HB_OT_METRICS_TAG_HORIZONTAL_LINE_GAP: horizontal line gap. @HB_OT_METRICS_TAG_HORIZONTAL_CLIPPING_ASCENT: horizontal clipping ascent. @HB_OT_METRICS_TAG_HORIZONTAL_CLIPPING_DESCENT: horizontal clipping descent. @HB_OT_METRICS_TAG_VERTICAL_ASCENDER: vertical ascender. @HB_OT_METRICS_TAG_VERTICAL_DESCENDER: vertical descender. @HB_OT_METRICS_TAG_VERTICAL_LINE_GAP: vertical line gap. @HB_OT_METRICS_TAG_HORIZONTAL_CARET_RISE: horizontal caret rise. @HB_OT_METRICS_TAG_HORIZONTAL_CARET_RUN: horizontal caret run. @HB_OT_METRICS_TAG_HORIZONTAL_CARET_OFFSET: horizontal caret offset. @HB_OT_METRICS_TAG_VERTICAL_CARET_RISE: vertical caret rise. @HB_OT_METRICS_TAG_VERTICAL_CARET_RUN: vertical caret run. @HB_OT_METRICS_TAG_VERTICAL_CARET_OFFSET: vertical caret offset. @HB_OT_METRICS_TAG_X_HEIGHT: x height. @HB_OT_METRICS_TAG_CAP_HEIGHT: cap height. @HB_OT_METRICS_TAG_SUBSCRIPT_EM_X_SIZE: subscript em x size. @HB_OT_METRICS_TAG_SUBSCRIPT_EM_Y_SIZE: subscript em y size. @HB_OT_METRICS_TAG_SUBSCRIPT_EM_X_OFFSET: subscript em x offset. @HB_OT_METRICS_TAG_SUBSCRIPT_EM_Y_OFFSET: subscript em y offset. @HB_OT_METRICS_TAG_SUPERSCRIPT_EM_X_SIZE: superscript em x size. @HB_OT_METRICS_TAG_SUPERSCRIPT_EM_Y_SIZE: superscript em y size. @HB_OT_METRICS_TAG_SUPERSCRIPT_EM_X_OFFSET: superscript em x offset. @HB_OT_METRICS_TAG_SUPERSCRIPT_EM_Y_OFFSET: superscript em y offset. @HB_OT_METRICS_TAG_STRIKEOUT_SIZE: strikeout size. @HB_OT_METRICS_TAG_STRIKEOUT_OFFSET: strikeout offset. @HB_OT_METRICS_TAG_UNDERLINE_SIZE: underline size. @HB_OT_METRICS_TAG_UNDERLINE_OFFSET: underline offset.

Metric tags corresponding to MVAR Value Tags

Since: 2.6.0

Enumerator
HB_OT_METRICS_TAG_HORIZONTAL_ASCENDER
HB_OT_METRICS_TAG_HORIZONTAL_DESCENDER
HB_OT_METRICS_TAG_HORIZONTAL_LINE_GAP
HB_OT_METRICS_TAG_HORIZONTAL_CLIPPING_ASCENT
HB_OT_METRICS_TAG_HORIZONTAL_CLIPPING_DESCENT
HB_OT_METRICS_TAG_VERTICAL_ASCENDER
HB_OT_METRICS_TAG_VERTICAL_DESCENDER
HB_OT_METRICS_TAG_VERTICAL_LINE_GAP
HB_OT_METRICS_TAG_HORIZONTAL_CARET_RISE
HB_OT_METRICS_TAG_HORIZONTAL_CARET_RUN
HB_OT_METRICS_TAG_HORIZONTAL_CARET_OFFSET
HB_OT_METRICS_TAG_VERTICAL_CARET_RISE
HB_OT_METRICS_TAG_VERTICAL_CARET_RUN
HB_OT_METRICS_TAG_VERTICAL_CARET_OFFSET
HB_OT_METRICS_TAG_X_HEIGHT
HB_OT_METRICS_TAG_CAP_HEIGHT
HB_OT_METRICS_TAG_SUBSCRIPT_EM_X_SIZE
HB_OT_METRICS_TAG_SUBSCRIPT_EM_Y_SIZE
HB_OT_METRICS_TAG_SUBSCRIPT_EM_X_OFFSET
HB_OT_METRICS_TAG_SUBSCRIPT_EM_Y_OFFSET
HB_OT_METRICS_TAG_SUPERSCRIPT_EM_X_SIZE
HB_OT_METRICS_TAG_SUPERSCRIPT_EM_Y_SIZE
HB_OT_METRICS_TAG_SUPERSCRIPT_EM_X_OFFSET
HB_OT_METRICS_TAG_SUPERSCRIPT_EM_Y_OFFSET
HB_OT_METRICS_TAG_STRIKEOUT_SIZE
HB_OT_METRICS_TAG_STRIKEOUT_OFFSET
HB_OT_METRICS_TAG_UNDERLINE_SIZE
HB_OT_METRICS_TAG_UNDERLINE_OFFSET
_HB_OT_METRICS_TAG_MAX_VALUE

Definition at line 74 of file hb-ot-metrics.h.

             {
  HB_OT_METRICS_TAG_HORIZONTAL_ASCENDER     = HB_TAG ('h','a','s','c'),
  HB_OT_METRICS_TAG_HORIZONTAL_DESCENDER    = HB_TAG ('h','d','s','c'),
  HB_OT_METRICS_TAG_HORIZONTAL_LINE_GAP     = HB_TAG ('h','l','g','p'),
  HB_OT_METRICS_TAG_HORIZONTAL_CLIPPING_ASCENT  = HB_TAG ('h','c','l','a'),
  HB_OT_METRICS_TAG_HORIZONTAL_CLIPPING_DESCENT = HB_TAG ('h','c','l','d'),
  HB_OT_METRICS_TAG_VERTICAL_ASCENDER       = HB_TAG ('v','a','s','c'),
  HB_OT_METRICS_TAG_VERTICAL_DESCENDER      = HB_TAG ('v','d','s','c'),
  HB_OT_METRICS_TAG_VERTICAL_LINE_GAP       = HB_TAG ('v','l','g','p'),
  HB_OT_METRICS_TAG_HORIZONTAL_CARET_RISE   = HB_TAG ('h','c','r','s'),
  HB_OT_METRICS_TAG_HORIZONTAL_CARET_RUN    = HB_TAG ('h','c','r','n'),
  HB_OT_METRICS_TAG_HORIZONTAL_CARET_OFFSET = HB_TAG ('h','c','o','f'),
  HB_OT_METRICS_TAG_VERTICAL_CARET_RISE     = HB_TAG ('v','c','r','s'),
  HB_OT_METRICS_TAG_VERTICAL_CARET_RUN      = HB_TAG ('v','c','r','n'),
  HB_OT_METRICS_TAG_VERTICAL_CARET_OFFSET   = HB_TAG ('v','c','o','f'),
  HB_OT_METRICS_TAG_X_HEIGHT            = HB_TAG ('x','h','g','t'),
  HB_OT_METRICS_TAG_CAP_HEIGHT          = HB_TAG ('c','p','h','t'),
  HB_OT_METRICS_TAG_SUBSCRIPT_EM_X_SIZE     = HB_TAG ('s','b','x','s'),
  HB_OT_METRICS_TAG_SUBSCRIPT_EM_Y_SIZE     = HB_TAG ('s','b','y','s'),
  HB_OT_METRICS_TAG_SUBSCRIPT_EM_X_OFFSET   = HB_TAG ('s','b','x','o'),
  HB_OT_METRICS_TAG_SUBSCRIPT_EM_Y_OFFSET   = HB_TAG ('s','b','y','o'),
  HB_OT_METRICS_TAG_SUPERSCRIPT_EM_X_SIZE   = HB_TAG ('s','p','x','s'),
  HB_OT_METRICS_TAG_SUPERSCRIPT_EM_Y_SIZE   = HB_TAG ('s','p','y','s'),
  HB_OT_METRICS_TAG_SUPERSCRIPT_EM_X_OFFSET = HB_TAG ('s','p','x','o'),
  HB_OT_METRICS_TAG_SUPERSCRIPT_EM_Y_OFFSET = HB_TAG ('s','p','y','o'),
  HB_OT_METRICS_TAG_STRIKEOUT_SIZE      = HB_TAG ('s','t','r','s'),
  HB_OT_METRICS_TAG_STRIKEOUT_OFFSET        = HB_TAG ('s','t','r','o'),
  HB_OT_METRICS_TAG_UNDERLINE_SIZE      = HB_TAG ('u','n','d','s'),
  HB_OT_METRICS_TAG_UNDERLINE_OFFSET        = HB_TAG ('u','n','d','o'),
 
  /*< private >*/
  _HB_OT_METRICS_TAG_MAX_VALUE = HB_TAG_MAX_SIGNED /*< skip >*/
} hb_ot_metrics_tag_t;

Function Documentation

hb_ot_metrics_get_position()

HB_EXTERN hb_bool_t hb_ot_metrics_get_position	(	hb_font_t *	font,
		hb_ot_metrics_tag_t	metrics_tag,
		hb_position_t *	position )

hb_ot_metrics_get_position_with_fallback()

HB_EXTERN void hb_ot_metrics_get_position_with_fallback	(	hb_font_t *	font,
		hb_ot_metrics_tag_t	metrics_tag,
		hb_position_t *	position )

hb_ot_metrics_get_variation()

HB_EXTERN float hb_ot_metrics_get_variation	(	hb_font_t *	font,
		hb_ot_metrics_tag_t	metrics_tag )

hb_ot_metrics_get_x_variation()

HB_EXTERN hb_position_t hb_ot_metrics_get_x_variation	(	hb_font_t *	font,
		hb_ot_metrics_tag_t	metrics_tag )

hb_ot_metrics_get_y_variation()

HB_EXTERN hb_position_t hb_ot_metrics_get_y_variation	(	hb_font_t *	font,
		hb_ot_metrics_tag_t	metrics_tag )