PangoDirection

The PangoDirection type represents a direction in the Unicode bidirectional algorithm; not every value in this enumeration makes sense for every usage of PangoDirection; for example, the return value of pango_unichar_direction() and pango_find_base_dir() cannot be PANGO_DIRECTION_WEAK_LTR or PANGO_DIRECTION_WEAK_RTL, since every character is either neutral or has a strong direction; on the other hand PANGO_DIRECTION_NEUTRAL doesn't make sense to pass to pango_itemize_with_base_dir(). The PANGO_DIRECTION_TTB_LTR, PANGO_DIRECTION_TTB_RTL values come from an earlier interpretation of this enumeration as the writing direction of a block of text and are no longer used; See PangoGravity for how vertical text is handled in Pango. PANGO_DIRECTION_LTR A strong left-to-right direction PANGO_DIRECTION_RTL A strong right-to-left direction PANGO_DIRECTION_TTB_LTR Deprecated value; treated the same as PANGO_DIRECTION_RTL. PANGO_DIRECTION_TTB_RTL Deprecated value; treated the same as PANGO_DIRECTION_LTR PANGO_DIRECTION_WEAK_LTR A weak left-to-right direction PANGO_DIRECTION_WEAK_RTL A weak right-to-left direction PANGO_DIRECTION_NEUTRAL No direction specified