- Direct parents
- inherit list: WINDOW
- width >= 1
- height >= 1
- child /= Void
- std_width > 0
- std_height > 0
set_background_color (c:
COLOR)
effective procedure
set_background_pixmap (p:
PIXMAP)
effective procedure
require
- x >= 0
- y >= 0
- w >= min_width
- h >= min_height
ensure
require
- min_w.in_range(0, std_w)
- min_h.in_range(0, std_h)
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: ROOT_WINDOW):
BOOLEAN
deferred function
require
ensure
- Result implies hash_code = other.hash_code
-
commutative: generating_type = other.generating_type implies Result = other.is_equal(Current)