ot_layout_baseline_tag_t

Added in version 2.6.0.

class ot_layout_baseline_tag_t

Baseline tags from Baseline Tags registry.

Fields

class ot_layout_baseline_tag_t
HANGING

The hanging baseline. In horizontal direction, this is the horizontal line from which syllables seem, to hang in Tibetan and other similar scripts. In vertical writing mode, for Tibetan (or some other similar script) characters rotated 90 degrees clockwise.

IDEO_EMBOX_BOTTOM_OR_LEFT

Ideographic em-box bottom or left edge, if the direction is horizontal or vertical, respectively.

IDEO_EMBOX_CENTRAL

The center of the ideographic em-box. Since: 4.0.0 if the direction is horizontal or vertical, respectively.

IDEO_EMBOX_TOP_OR_RIGHT

Ideographic em-box top or right edge baseline,

IDEO_FACE_BOTTOM_OR_LEFT

Ideographic character face bottom or left edge, if the direction is horizontal or vertical, respectively.

IDEO_FACE_CENTRAL

The center of the ideographic character face. Since: 4.0.0

IDEO_FACE_TOP_OR_RIGHT

Ideographic character face top or right edge, if the direction is horizontal or vertical, respectively.

MATH

The baseline about which mathematical characters are centered. In vertical writing mode when mathematical characters rotated 90 degrees clockwise, are centered.

ROMAN

The baseline used by alphabetic scripts such as Latin, Cyrillic and Greek. In vertical writing mode, the alphabetic baseline for characters rotated 90 degrees clockwise. (This would not apply to alphabetic characters that remain upright in vertical writing mode, since these characters are not rotated.)