indexing
description: "Defines the coordinates of the upper-left and lower-right corners of a rectangle."
legal: "See notice at end of class."
status: "See notice at end of class."
date: "$Date: 2006-09-14 10:51:35 -0700 (Thu, 14 Sep 2006) $"
revision: "$Revision: 63567 $"
class interface
WEL_RECT
create
make (a_left, a_top, a_right, a_bottom: INTEGER_32)
lefttop
rightbottom`a_left'`a_top'
`a_right'`a_bottom'
ensure
left_set: left = a_left
top_set: top = a_top
right_set: right = a_right
bottom_set: bottom = a_bottom
make_by_pointer (a_pointer: POINTER)
item`a_pointer'
item
`a_pointer'
WEL_ANY
ensure WEL_ANY
item_set: item = a_pointer
shared: shared
make_client (window: WEL_WINDOW)
`window'
require
window_not_void: window /= Void
window_exists: window.exists
ensure
left_equal_zero: left = 0
top_equal_zero: top = 0
client_rect_set: is_equal (window.client_rect)
make_window (window: WEL_WINDOW)
`window'
require
window_not_void: window /= Void
window_exists: window.exists
ensure
window_rect_set: is_equal (window.window_rect)
feature
bottom: INTEGER_32
generating_type: STRING_8
ANY
generator: STRING_8
ANY
height: INTEGER_32
item: POINTER
WEL_ANY
left: INTEGER_32
WEL_RECTx
right: INTEGER_32
top: INTEGER_32
WEL_RECTy
width: INTEGER_32
x: INTEGER_32
WEL_RECTleft
y: INTEGER_32
WEL_RECTtop
feature
structure_size: INTEGER_32
ensure WEL_STRUCTURE
positive_result: Result > 0
feature
frozen deep_equal (some: ANY; other: like arg #1): BOOLEAN
`some'`other'
ANY
ensure ANY
shallow_implies_deep: standard_equal (some, other) implies Result
both_or_none_void: (some = Void) implies (Result = (other = Void))
same_type: (Result and (some /= Void)) implies some.same_type (other)
symmetric: Result implies deep_equal (other, some)
frozen equal (some: ANY; other: like arg #1): BOOLEAN
`some'`other'
ANY
ensure ANY
definition: Result = (some = Void and other = Void) or else ((some /= Void and other /= Void) and then some.is_equal (other))
is_equal (other: like Current): BOOLEAN
`Current'`other'
require ANY
other_not_void: other /= Void
ensure ANY
symmetric: Result implies other.is_equal (Current)
consistent: standard_is_equal (other) implies Result
frozen standard_equal (some: ANY; other: like arg #1): BOOLEAN
`some'`other'
ANY
ensure ANY
definition: Result = (some = Void and other = Void) or else ((some /= Void and other /= Void) and then some.standard_is_equal (other))
frozen standard_is_equal (other: like Current): BOOLEAN
`other'
ANY
require ANY
other_not_void: other /= Void
ensure ANY
same_type: Result implies same_type (other)
symmetric: Result implies other.standard_is_equal (Current)
feature
conforms_to (other: ANY): BOOLEAN
`other'
ANY
require ANY
other_not_void: other /= Void
empty: BOOLEAN
exists: BOOLEAN
item
WEL_ANY
ensure WEL_ANY
Result = (item /= default_pointer)
point_in (point: WEL_POINT): BOOLEAN
`point'
require
point_not_void: point /= Void
same_type (other: ANY): BOOLEAN
`other'
ANY
require ANY
other_not_void: other /= Void
ensure ANY
definition: Result = (conforms_to (other) and other.conforms_to (Current))
shared: BOOLEAN
item
item
destroy_item
item
WEL_ANY
feature
set_shared
shared
WEL_ANY
ensure WEL_ANY
shared: shared
set_unshared
shared
WEL_ANY
ensure WEL_ANY
unshared: not shared
feature
set_bottom (a_bottom: INTEGER_32)
bottom`a_bottom'
ensure
bottom_set: bottom = a_bottom
set_item (an_item: POINTER)
item`an_item'
WEL_ANY
ensure WEL_ANY
item_set: item = an_item
set_left (a_left: INTEGER_32)
left`a_left'
ensure
left_set: left = a_left
set_rect (a_left, a_top, a_right, a_bottom: INTEGER_32)
lefttoprightbottom
`a_left'`a_top'`a_right'`a_bottom'
ensure
left_set: left = a_left
top_set: top = a_top
right_set: right = a_right
bottom_set: bottom = a_bottom
set_right (a_right: INTEGER_32)
right`a_right'
ensure
right_set: right = a_right
set_top (a_top: INTEGER_32)
top`a_top'
ensure
top_set: top = a_top
feature
dispose
`Current'
`Current'
WEL_ANY
feature
frozen deep_copy (other: like Current)
copy`other'deep_twin
ANY
require ANY
other_not_void: other /= Void
ensure ANY
deep_equal: deep_equal (Current, other)
frozen deep_twin: like Current
ANY
ensure ANY
deep_equal: deep_equal (Current, Result)
frozen standard_copy (other: like Current)
`other'
ANY
require ANY
other_not_void: other /= Void
type_identity: same_type (other)
ensure ANY
is_standard_equal: standard_is_equal (other)
frozen standard_twin: like Current
`other'
ANY
ensure ANY
standard_twin_not_void: Result /= Void
equal: standard_equal (Result, Current)
frozen twin: like Current
`Current'
twincopycopy
ANY
ensure ANY
twin_not_void: Result /= Void
is_equal: Result.is_equal (Current)
feature
frozen default: like Current
ANY
frozen default_pointer: POINTER
`POINTER'
`p'default
`p'`POINTER'
ANY
default_rescue
ANY
frozen do_nothing
ANY
inflate (a_x, a_y: INTEGER_32)
`a_x'`a_y'
ensure
left_set: left = old left - a_x
top_set: top = old top - a_x
right_set: right = old right + a_y
bottom_set: bottom = old bottom + a_y
initialize
WEL_STRUCTURE
require WEL_STRUCTURE
exists: exists
initialize_with_character (a_character: CHARACTER_8)
`a_character'
WEL_STRUCTURE
require WEL_STRUCTURE
exists: exists
intersect (rect1, rect2: WEL_RECT)
`rect1'
`rect2'`rect1'`rect2'
empty
require
rect1_not_void: rect1 /= Void
rect2_not_void: rect2 /= Void
memory_copy (source_pointer: POINTER; length: INTEGER_32)
`length'`source_pointer'item
WEL_STRUCTURE
require WEL_STRUCTURE
length_small_enough: length <= structure_size
length_large_enough: length > 0
exists: exists
offset (a_x, a_y: INTEGER_32)
`a_x'`a_y'
ensure
x_set: x = old x + a_x
y_set: y = old y + a_y
right_set: right = old right + a_x
bottom_set: bottom = old bottom + a_y
subtract (rect1, rect2: WEL_RECT)
`rect2'`rect1'
require
rect1_not_void: rect1 /= Void
rect2_not_void: rect2 /= Void
union (rect1, rect2: WEL_RECT)
`rect1'`rect2'
require
rect1_not_void: rect1 /= Void
rect2_not_void: rect2 /= Void
feature {ANY}
copy (other: like Current)
`other'
WEL_STRUCTURE
require ANY
other_not_void: other /= Void
type_identity: same_type (other)
ensure ANY
is_equal: is_equal (other)
feature
io: STD_FILES
ANY
out: STRING_8
ANYtagged_out
ANY
print (some: ANY)
`some'
ANY
frozen tagged_out: STRING_8
ANYout
ANY
feature
operating_environment: OPERATING_ENVIRONMENT
ANY
invariant
positive_width: exists implies width >= 0
positive_height: exists implies height >= 0
ANY
reflexive_equality: standard_is_equal (Current)
reflexive_conformance: conforms_to (Current)
indexing
copyright: "Copyright (c) 1984-2006, Eiffel Software and others"
license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"
source: "[
Eiffel Software
356 Storke Road, Goleta, CA 93117 USA
Telephone 805-685-1006, Fax 805-685-6869
Website http://www.eiffel.com
Customer support http://support.eiffel.com
]"
end WEL_RECT