The PangoGravityHint defines how horizontal scripts should behave in a
vertical context. That is, English excerpt in a vertical paragraph for
example.
See PangoGravity.
PANGO_GRAVITY_HINT_NATURAL
scripts will take their natural gravity based
on the base gravity and the script. This is the default.
PANGO_GRAVITY_HINT_STRONG
always use the base gravity set, regardless of
the script.
PANGO_GRAVITY_HINT_LINE
for scripts not in their natural direction (eg.
Latin in East gravity), choose per-script gravity such that every script
respects the line progression. This means, Latin and Arabic will take
opposite gravities and both flow top-to-bottom for example.
Since 1.16
The PangoGravityHint defines how horizontal scripts should behave in a vertical context. That is, English excerpt in a vertical paragraph for example. See PangoGravity. PANGO_GRAVITY_HINT_NATURAL scripts will take their natural gravity based on the base gravity and the script. This is the default. PANGO_GRAVITY_HINT_STRONG always use the base gravity set, regardless of the script. PANGO_GRAVITY_HINT_LINE for scripts not in their natural direction (eg. Latin in East gravity), choose per-script gravity such that every script respects the line progression. This means, Latin and Arabic will take opposite gravities and both flow top-to-bottom for example. Since 1.16