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note description: "Eiffel Vision sizeable. Mswindows implementation of ancestor%Nfor EV_SIZEABLE_PRIMITIVE_IMP and EV_SIZEABLE_CONTAINER_IMP." legal: "See notice at end of class." status: "See notice at end of class." date: "$Date: 2011-03-02 13:56:54 -0900 (Wed, 02 Mar 2011) $" revision: "$Revision: 85772 $" deferred class interface EV_SIZEABLE_IMP feature -- Access generating_type: TYPE [detachable EV_SIZEABLE_IMP] -- Type of current object -- (type of which it is a direct instance) -- (from ANY) ensure -- from ANY generating_type_not_void: Result /= Void generator: STRING_8 -- Name of current object's generating class -- (base class of the type of which it is a direct instance) -- (from ANY) ensure -- from ANY generator_not_void: Result /= Void generator_not_empty: not Result.is_empty minimum_height: INTEGER_32 -- Lower bound on height in pixels. minimum_width: INTEGER_32 -- Lower bound on width in pixels. feature -- Comparison frozen deep_equal (a: detachable ANY; b: like arg #1): BOOLEAN -- Are a and b either both void -- or attached to isomorphic object structures? -- (from ANY) ensure -- from ANY instance_free: class shallow_implies_deep: standard_equal (a, b) implies Result both_or_none_void: (a = Void) implies (Result = (b = Void)) same_type: (Result and (a /= Void)) implies (b /= Void and then a.same_type (b)) symmetric: Result implies deep_equal (b, a) frozen equal (a: detachable ANY; b: like arg #1): BOOLEAN -- Are a and b either both void or attached -- to objects considered equal? -- (from ANY) ensure -- from ANY instance_free: class definition: Result = (a = Void and b = Void) or else ((a /= Void and b /= Void) and then a.is_equal (b)) frozen is_deep_equal alias "≡≡≡" (other: EV_SIZEABLE_IMP): BOOLEAN -- Are Current and other attached to isomorphic object structures? -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY shallow_implies_deep: standard_is_equal (other) implies Result same_type: Result implies same_type (other) symmetric: Result implies other.is_deep_equal (Current) is_equal (other: EV_SIZEABLE_IMP): BOOLEAN -- Is other attached to an object considered -- equal to current object? -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY symmetric: Result implies other ~ Current consistent: standard_is_equal (other) implies Result frozen standard_equal (a: detachable ANY; b: like arg #1): BOOLEAN -- Are a and b either both void or attached to -- field-by-field identical objects of the same type? -- Always uses default object comparison criterion. -- (from ANY) ensure -- from ANY instance_free: class definition: Result = (a = Void and b = Void) or else ((a /= Void and b /= Void) and then a.standard_is_equal (b)) frozen standard_is_equal alias "" (other: EV_SIZEABLE_IMP): BOOLEAN -- Is other attached to an object of the same type -- as current object, and field-by-field identical to it? -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY same_type: Result implies same_type (other) symmetric: Result implies other.standard_is_equal (Current) feature -- Status report conforms_to (other: ANY): BOOLEAN -- Does type of current object conform to type -- of other (as per Eiffel: The Language, chapter 13)? -- (from ANY) require -- from ANY other_not_void: other /= Void is_destroyed: BOOLEAN -- Is Current no longer usable? -- (from EV_ANY_I) same_type (other: ANY): BOOLEAN -- Is type of current object identical to type of other? -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY definition: Result = (conforms_to (other) and other.conforms_to (Current)) feature -- Resizing ev_set_minimum_height (value: INTEGER_32; a_is_size_forced: BOOLEAN) -- Make value the new minimum_height of Current. -- There is no need to grow Current if its size is -- too small, the parent will do it if necessary. -- If a_is_size_forced then force an actual computation of the real size too. require not_is_destroyed: not is_destroyed ev_set_minimum_size (mw, mh: INTEGER_32; a_is_size_forced: BOOLEAN) -- Make mw the new minimum_width and mh the new -- minimum_height of Current. -- If a_is_size_forced then force an actual computation of the real size too. require not_is_destroyed: not is_destroyed ev_set_minimum_width (value: INTEGER_32; a_is_size_forced: BOOLEAN) -- Make value the new minimum_width of Current. -- There is no need to grow Current if its size is -- too small, the parent will do it if necessary. -- If a_is_size_forced then force an actual computation of the real size too. require not_is_destroyed: not is_destroyed set_height (value: INTEGER_32) -- Make value the new height of Current. require not_is_destroyed: not is_destroyed set_minimum_height (value: INTEGER_32) -- Make value the new minimum_height of Current. -- There is no need to grow Current if its size is -- too small, the parent will do it if necessary. require not_is_destroyed: not is_destroyed set_minimum_size (mw, mh: INTEGER_32) -- Make mw the new minimum_width and mh the new -- minimum_height of Current. require not_is_destroyed: not is_destroyed set_minimum_width (value: INTEGER_32) -- Make value the new minimum_width of Current. -- There is no need to grow Current if its size is -- too small, the parent will do it if necessary. require not_is_destroyed: not is_destroyed set_size (w, h: INTEGER_32) -- Resize Current. require not_is_destroyed: not is_destroyed set_width (value: INTEGER_32) -- Make value the new width of Current. require not_is_destroyed: not is_destroyed feature -- Duplication copy (other: EV_SIZEABLE_IMP) -- Update current object using fields of object attached -- to other, so as to yield equal objects. -- (from ANY) require -- from ANY other_not_void: other /= Void type_identity: same_type (other) ensure -- from ANY is_equal: Current ~ other frozen deep_copy (other: EV_SIZEABLE_IMP) -- Effect equivalent to that of: -- copy (other . deep_twin) -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY deep_equal: deep_equal (Current, other) frozen deep_twin: EV_SIZEABLE_IMP -- New object structure recursively duplicated from Current. -- (from ANY) ensure -- from ANY deep_twin_not_void: Result /= Void deep_equal: deep_equal (Current, Result) frozen standard_copy (other: EV_SIZEABLE_IMP) -- Copy every field of other onto corresponding field -- of current object. -- (from ANY) require -- from ANY other_not_void: other /= Void type_identity: same_type (other) ensure -- from ANY is_standard_equal: standard_is_equal (other) frozen standard_twin: EV_SIZEABLE_IMP -- New object field-by-field identical to other. -- Always uses default copying semantics. -- (from ANY) ensure -- from ANY standard_twin_not_void: Result /= Void equal: standard_equal (Result, Current) frozen twin: EV_SIZEABLE_IMP -- New object equal to Current -- twin calls copy; to change copying/twinning semantics, redefine copy. -- (from ANY) ensure -- from ANY twin_not_void: Result /= Void is_equal: Result ~ Current feature -- Basic operations frozen default: detachable EV_SIZEABLE_IMP -- Default value of object's type -- (from ANY) frozen default_pointer: POINTER -- Default value of type POINTER -- (Avoid the need to write p.default for -- some p of type POINTER.) -- (from ANY) ensure -- from ANY instance_free: class default_rescue -- Process exception for routines with no Rescue clause. -- (Default: do nothing.) -- (from ANY) frozen do_nothing -- Execute a null action. -- (from ANY) ensure -- from ANY instance_free: class feature -- Obsolete Nc_minheight: INTEGER_32 = 2 -- Used only in the notify_change feature to -- notify the parent that the minimum height of -- Current has changed. Nc_minsize: INTEGER_32 = 3 -- Used only in the notify_change feature to -- notify the parent that both the minimum width -- and height of Current widget have changed. Nc_minwidth: INTEGER_32 = 1 -- Used only in the notify_change feature to -- notify the parent that the minimum width of -- Current has changed. feature -- Basic operation internal_set_minimum_height (value: INTEGER_32) -- Make value the new minimum_height of Current. -- Should check if the user didn't set the minimum width -- before to set the new value. require positive_value: value >= 0 internal_set_minimum_size (mw, mh: INTEGER_32) -- Make mw the new minimum_width and mh the new -- minimum_height of Current. -- Should check if the user didn't set the minimum width -- before to set the new value. require positive_mw: mw >= 0 positive_mh: mh >= 0 internal_set_minimum_width (value: INTEGER_32) -- Make value the new minimum_width of Current. -- Should check if the user didn't set the minimum width -- before to set the new value. require positive_value: value >= 0 internal_set_size (mw, mh: INTEGER_32) -- Set size of child_cell. require positive_mw: mw >= 0 positive_mh: mh >= 0 parent_ask_resize (a_width, a_height: INTEGER_32) -- Called by the parent when the size of Current has to be -- changed to a_width, a_height. require not_is_destroyed: not is_destroyed set_move_and_size (a_x_position, a_y_position, a_width, a_height: INTEGER_32) -- Move and resize the widget. Only the parent can call this feature -- because it doesn't notify the parent of the change. -- Equivalent of parent_ask_resize with move. require not_is_destroyed: not is_destroyed feature -- Output Io: STD_FILES -- Handle to standard file setup -- (from ANY) ensure -- from ANY instance_free: class io_not_void: Result /= Void out: STRING_8 -- New string containing terse printable representation -- of current object -- (from ANY) ensure -- from ANY out_not_void: Result /= Void print (o: detachable ANY) -- Write terse external representation of o -- on standard output. -- (from ANY) ensure -- from ANY instance_free: class frozen tagged_out: STRING_8 -- New string containing terse printable representation -- of current object -- (from ANY) ensure -- from ANY tagged_out_not_void: Result /= Void feature -- Platform Operating_environment: OPERATING_ENVIRONMENT -- Objects available from the operating system -- (from ANY) ensure -- from ANY instance_free: class operating_environment_not_void: Result /= Void feature -- Position set_position (new_x_position: INTEGER_32; new_y_position: INTEGER_32) -- Put at horizontal position new_x_position and at -- vertical position new_y_position relative to parent. require not_is_destroyed: not is_destroyed invariant -- from EV_ANY_I interface_coupled: is_usable implies interface /= Void and then attached_interface.implementation = Current base_make_called: is_usable implies base_make_called -- from ANY reflexive_equality: standard_is_equal (Current) reflexive_conformance: conforms_to (Current) note 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 -- class EV_SIZEABLE_IMP
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