:right-sidebar: True

ot_layout_baseline_tag_t
===================================================================

.. currentmodule:: gi.repository.HarfBuzz


.. versionadded:: 2.6.0




.. class:: ot_layout_baseline_tag_t
   :no-contents-entry:






Baseline tags from `Baseline Tags <https://docs.microsoft.com/en-us/typography/opentype/spec/baselinetags>`_ registry.













Fields
------

.. rst-class:: interim-class

.. class:: ot_layout_baseline_tag_t
   :no-index:
   

   .. attribute:: B_OT_LAYOUT_BASELINE_TAG_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.







   .. attribute:: B_OT_LAYOUT_BASELINE_TAG_IDEO_EMBOX_BOTTOM_OR_LEFT

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







   .. attribute:: B_OT_LAYOUT_BASELINE_TAG_IDEO_EMBOX_CENTRAL

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







   .. attribute:: B_OT_LAYOUT_BASELINE_TAG_IDEO_EMBOX_TOP_OR_RIGHT

      Ideographic em-box top or right edge baseline,







   .. attribute:: B_OT_LAYOUT_BASELINE_TAG_IDEO_FACE_BOTTOM_OR_LEFT

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







   .. attribute:: B_OT_LAYOUT_BASELINE_TAG_IDEO_FACE_CENTRAL

      The center of the ideographic character face. Since: 4.0.0







   .. attribute:: B_OT_LAYOUT_BASELINE_TAG_IDEO_FACE_TOP_OR_RIGHT

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







   .. attribute:: B_OT_LAYOUT_BASELINE_TAG_MATH

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







   .. attribute:: B_OT_LAYOUT_BASELINE_TAG_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.)