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note description: "Arrange the nodes in a grid." legal: "See notice at end of class." status: "See notice at end of class." date: "$Date: 2010-12-08 07:55:59 -0900 (Wed, 08 Dec 2010) $" revision: "$Revision: 85085 $" class interface EG_GRID_LAYOUT create make_with_world (a_world: like world) -- Make -- (from EG_LAYOUT) require -- from EG_LAYOUT a_world /= Void ensure -- from EG_LAYOUT set: world = a_world feature -- Access exponent: REAL_64 -- Exponent used to reduce grid width per level. -- (grid_width / cluster_level ^ exponent). generating_type: TYPE [detachable EG_GRID_LAYOUT] -- 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 grid_height: INTEGER_32 -- The height of the grid. ensure result_greater_equal_zero: Result >= 0 grid_width: INTEGER_32 -- The width of the grid. ensure result_greater_equal_zero: Result >= 0 number_of_columns: INTEGER_32 -- Number of columns. (The number of rows is calculated -- such that all elements fit in the grid) point_a_x: INTEGER_32 -- The x position of the start of the grid. point_a_y: INTEGER_32 -- The y position of the start of the grid. point_b_x: INTEGER_32 -- The x position of the end of the grid. point_b_y: INTEGER_32 -- The y position of the end of the grid. world: EG_FIGURE_WORLD -- The graph to layout. -- (from EG_LAYOUT) 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: EG_GRID_LAYOUT): 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: EG_GRID_LAYOUT): 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: EG_GRID_LAYOUT): 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 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 -- Element change layout -- Arrange the elements in graph. -- (from EG_LAYOUT) layout_cluster (cluster: EG_CLUSTER_FIGURE; level: INTEGER_32) -- Arrange the elements in cluster (recursive). -- (from EG_LAYOUT) require -- from EG_LAYOUT cluster_not_void: cluster /= Void level_greater_zero: level > 0 layout_cluster_only (cluster: EG_CLUSTER_FIGURE) -- Arrange the elements in cluster (not recursive). -- (from EG_LAYOUT) require -- from EG_LAYOUT cluster_not_void: cluster /= Void set_exponent (an_exponent: like exponent) -- Set exponent to an_exponent. ensure set: exponent = an_exponent set_number_of_columns (a_number_of_columns: like number_of_columns) -- Set number_of_columns to a_number_of_columns. require a_number_of_columns_greater_zero: a_number_of_columns > 0 ensure set: number_of_columns = a_number_of_columns set_point_a_position (ax, ay: INTEGER_32) -- Set point_a_x to ax and point_a_y to ay. ensure set: point_a_x = ax and point_a_y = ay set_point_b_position (ax, ay: INTEGER_32) -- Set point_b_x to ax and point_b_y to ay. ensure set: point_b_x = ax and point_b_y = ay set_world (a_world: like world) -- Set world to a_world. -- (from EG_LAYOUT) require -- from EG_LAYOUT a_world_not_void: a_world /= Void ensure -- from EG_LAYOUT set: world = a_world feature -- Duplication copy (other: EG_GRID_LAYOUT) -- 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: EG_GRID_LAYOUT) -- 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: EG_GRID_LAYOUT -- 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: EG_GRID_LAYOUT) -- 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: EG_GRID_LAYOUT -- 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: EG_GRID_LAYOUT -- 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 EG_GRID_LAYOUT -- 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 -- 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 invariant -- from EG_LAYOUT world_not_void: world /= Void -- from ANY reflexive_equality: standard_is_equal (Current) reflexive_conformance: conforms_to (Current) note copyright: "Copyright (c) 1984-2010, Eiffel Software and others" license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)" source: "[ Eiffel Software 5949 Hollister Ave., 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 EG_GRID_LAYOUT
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