indexing
description: "A region is a rectangle, polygon, or ellipse (or a combination of two or more of these shapes) that can be filled, painted, inverted, framed, and used to perform hit testing."
legal: "See notice at end of class."
status: "See notice at end of class."
date: "$Date: 2006-08-25 11:52:50 -0700 (Fri, 25 Aug 2006) $"
revision: "$Revision: 62953 $"
class interface
WEL_REGION
create
make_empty
make_elliptic (left, top, right, bottom: INTEGER_32)
`left'`top'`right'`bottom'
make_elliptic_indirect (rect: WEL_RECT)
`rect'
require
rect_not_void: rect /= Void
make_polygon_alternate (points: ARRAY [INTEGER_32])
`points'
require
points_not_void: points /= Void
points_count: points.count \\ 2 = 0
make_polygon_winding (points: ARRAY [INTEGER_32])
`points'
require
points_not_void: points /= Void
points_count: points.count \\ 2 = 0
make_rect (left, top, right, bottom: INTEGER_32)
`left'`top'`right'`bottom'
make_rect_indirect (rect: WEL_RECT)
`rect'
require
rect_not_void: rect /= Void
make_by_pointer (a_pointer: POINTER)
item`a_pointer'
item
`a_pointer'
WEL_GDI_ANY
ensure WEL_ANY
item_set: item = a_pointer
shared: shared
feature
gdi_objects_count: INTEGER_32
WEL_GDI_ANY
generating_type: STRING_8
ANY
generator: STRING_8
ANY
get_region_box: WEL_RECT
`Current'
item: POINTER
WEL_ANY
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
exists: BOOLEAN
item
WEL_ANY
require WEL_REFERENCE_TRACKABLE
True
ensure WEL_ANY
Result = (item /= default_pointer)
point_in (x, y: INTEGER_32): BOOLEAN
`x'`y'
require
exists: exists
rect_in (rect: WEL_RECT): BOOLEAN
`rect'
require
exists: exists
rect_not_void: rect /= 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_item (an_item: POINTER)
item`an_item'
WEL_ANY
ensure WEL_ANY
item_set: item = an_item
feature
delete
`Current'
WEL_REFERENCE_TRACKABLE
require WEL_REFERENCE_TRACKABLE
reference_not_tracked: not reference_tracked
ensure WEL_REFERENCE_TRACKABLE
destroyed: not shared implies not exists
dispose
`Current'
WEL_REFERENCE_TRACKABLE
require DISPOSABLE
True
ensure then WEL_REFERENCE_TRACKABLE
internal_object_id_freed: internal_object_id = 0
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 {ANY}
copy (other: like Current)
`other'
ANY
require ANY
other_not_void: other /= Void
type_identity: same_type (other)
ensure ANY
is_equal: is_equal (other)
feature
combine (region: WEL_REGION; mode: INTEGER_32): WEL_REGION
`region'`mode'
`mode'
require
exists: exists
region_not_void: region /= Void
region_exists: region.exists
ensure
result_not_void: Result /= Void
frozen default: like Current
ANY
frozen default_pointer: POINTER
`POINTER'
`p'default
`p'`POINTER'
ANY
default_rescue
ANY
frozen do_nothing
ANY
offset (x_offset, y_offset: INTEGER_32)
`x_offset'`y_offset'
require
exists: exists
set_rect (left, top, right, bottom: INTEGER_32)
`left'`top'`right'`bottom'
require
exists: exists
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
feature
reference_tracked: BOOLEAN
`Current'
WEL_REFERENCE_TRACKABLE
references_count: INTEGER_32
WEL_REFERENCE_TRACKABLE
feature
decrement_reference
delete
WEL_REFERENCE_TRACKABLE
require WEL_REFERENCE_TRACKABLE
exists: exists
tracking_references_started: reference_tracked
enable_reference_tracking
`references_tracked'
WEL_REFERENCE_TRACKABLE
require WEL_REFERENCE_TRACKABLE
exists: exists
tracking_reference_not_started: not reference_tracked
increment_reference
WEL_REFERENCE_TRACKABLE
require WEL_REFERENCE_TRACKABLE
exists: exists
tracking_references_started: reference_tracked
object_id: INTEGER_32
`Current'
WEL_REFERENCE_TRACKABLE
invariant
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_REGION