(gobject:define-genum "GtkRevealerTransitionType" revealer-transition-type
  (:export t
   :type-initializer "gtk_revealer_transition_type_get_type")
  (:none 0)
  (:crossfade 1)
  (:slide-right 2)
  (:slide-left 3)
  (:slide-up 4)
  (:slide-down 5)
  (:swing-right 6)
  (:swing-left 7)
  (:swing-up 8)
  (:swing-down 9))  

:none

No transition

:crossfade

Fade in.

:slide-right

Slide in from the left.

:slide-left

Slide in from the right.

:slide-up

Slide in from the bottom.

:slide-down

Slide in from the top.

:swing-right

Floop in from the left.

:swing-left

Floop in from the right.

:swing-up

Floop in from the bottom.

:swing-down

Floop in from the top.