Enumeration

Pango.Direction

Declaration

enum Pango.Direction

Description [src]

PangoDirection 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.

If you are interested in text direction, you should really use fribidi directly. PangoDirection is only retained because it is used in some public apis.

Members

Name Description
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