- width >= 1
- height >= 1
- std_width > 0
- std_height > 0
require
- view.valid_width(w)
- view.valid_height(h)
require
- layout /= Void
- p /= Void
- p.parent = Void
- not has_child(p)
ensure
- view /= Void
- p.parent = Current
- has_child(p)
- last_child = p
set_background_color (c:
COLOR)
effective procedure
set_background_pixmap (p:
PIXMAP)
effective procedure
require
- l /= Void
- l.container = Void
ensure
require
- w > 0
- h > 0
- area.include(x, y)
- area.include(x + w - 1, y + h - 1)
frozen
effective function
frozen
effective function
frozen
effective function
frozen
effective function
frozen
effective function
ensure
-
good_hash_value: Result >= 0
is_equal (other: SCROLL_VIEW):
BOOLEAN
deferred function
require
ensure
- Result implies hash_code = other.hash_code
-
commutative: generating_type = other.generating_type implies Result = other.is_equal(Current)