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note description: "[ Objects that provide information for a range of characters in an EV_RICH_TEXT. Depending on the query applied to Current, the values of all attributes are used in different fashions, sometimes to indicate which fields of an EV_CHARACTER_FORMAT are valid, or have a particular property. The applicable features in EV_RICH_TEXT which use Current provide full descriptions. ]" legal: "See notice at end of class." status: "See notice at end of class." date: "$Date: 2008-12-29 11:27:11 -0900 (Mon, 29 Dec 2008) $" revision: "$Revision: 76420 $" class interface EV_CHARACTER_FORMAT_RANGE_INFORMATION create make_with_flags (flags: INTEGER_32) -- Create Current and apply flags to set attributes. -- Valid flags are the corresponding flags from EV_CHARACTER_FORMAT_CONSTANTS. -- Combine these in flags to set multiple attrbutes, e.g. to set the -- font height and font color as applicable perform: -- "make_with_flags (feature {EV_CHARACTER_FORMAT_CONSTANTS}.font_height | feature {EV_CHARACTER_FORMAT_CONSTANTS}.color)" require valid_flags: valid_character_format_flag (flags) ensure attributes_set: font_family = (flags | {EV_CHARACTER_FORMAT_CONSTANTS}.font_family = flags) and font_weight = (flags | {EV_CHARACTER_FORMAT_CONSTANTS}.font_weight = flags) and font_shape = (flags | {EV_CHARACTER_FORMAT_CONSTANTS}.font_shape = flags) and font_height = (flags | {EV_CHARACTER_FORMAT_CONSTANTS}.font_height = flags) and color = (flags | {EV_CHARACTER_FORMAT_CONSTANTS}.color = flags) and background_color = (flags | {EV_CHARACTER_FORMAT_CONSTANTS}.background_color = flags) and effects_striked_out = (flags | {EV_CHARACTER_FORMAT_CONSTANTS}.effects_striked_out = flags) and effects_underlined = (flags | {EV_CHARACTER_FORMAT_CONSTANTS}.effects_underlined = flags) and effects_vertical_offset = (flags | {EV_CHARACTER_FORMAT_CONSTANTS}.effects_vertical_offset = flags) feature -- Access Background_color_flag: INTEGER_32 = 32 -- Background color applicable. -- (from EV_CHARACTER_FORMAT_CONSTANTS) background_color: BOOLEAN -- Is background color of font applicable? Color_flag: INTEGER_32 = 16 -- Color applicable. -- (from EV_CHARACTER_FORMAT_CONSTANTS) color: BOOLEAN -- Is color of font applicable? effects_striked_out: BOOLEAN -- Is striked out effect of font applicable? Effects_striked_out_flag: INTEGER_32 = 64 -- Effects striked out valid. -- (from EV_CHARACTER_FORMAT_CONSTANTS) Effects_underlined_flag: INTEGER_32 = 128 -- Effects underlined valid. -- (from EV_CHARACTER_FORMAT_CONSTANTS) effects_underlined: BOOLEAN -- Is underlined effect of font applicable? Effects_vertical_offset_flag: INTEGER_32 = 256 -- Effects vertical offset valid. -- (from EV_CHARACTER_FORMAT_CONSTANTS) effects_vertical_offset: BOOLEAN -- Is vertical offset effect of font applicable? Font_family_flag: INTEGER_32 = 1 -- Font family applicable. -- (from EV_CHARACTER_FORMAT_CONSTANTS) font_family: BOOLEAN -- Is family of font applicable? font_height: BOOLEAN -- Is height of font applicable? Font_height_flag: INTEGER_32 = 8 -- Font height applicable. -- (from EV_CHARACTER_FORMAT_CONSTANTS) font_shape: BOOLEAN -- Is shape of font applicable? Font_shape_flag: INTEGER_32 = 4 -- Font shape applicable. -- (from EV_CHARACTER_FORMAT_CONSTANTS) font_weight: BOOLEAN -- Is weight of font applicable? Font_weight_flag: INTEGER_32 = 2 -- Font weight applicable. -- (from EV_CHARACTER_FORMAT_CONSTANTS) generating_type: TYPE [detachable EV_CHARACTER_FORMAT_RANGE_INFORMATION] -- 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 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 (other: EV_CHARACTER_FORMAT_RANGE_INFORMATION): 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_CHARACTER_FORMAT_RANGE_INFORMATION): 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 (other: EV_CHARACTER_FORMAT_RANGE_INFORMATION): 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 -- Duplication copy (other: EV_CHARACTER_FORMAT_RANGE_INFORMATION) -- 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_CHARACTER_FORMAT_RANGE_INFORMATION) -- 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_CHARACTER_FORMAT_RANGE_INFORMATION -- 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_CHARACTER_FORMAT_RANGE_INFORMATION) -- 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_CHARACTER_FORMAT_RANGE_INFORMATION -- 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_CHARACTER_FORMAT_RANGE_INFORMATION -- 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_CHARACTER_FORMAT_RANGE_INFORMATION -- 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 -- Contract support valid_character_format_flag (a_flag: INTEGER_32): BOOLEAN -- Is a_flag a valid character format flag? -- Used by EV_CHARACTER_FORMAT_RANGE_INFORMATION -- May be any combination of the attribute flags above, except that -- effects_underlined and `Effects_double_underlined are mutually exclusive -- (from EV_CHARACTER_FORMAT_CONSTANTS) feature -- Creation make_with_flags (flags: INTEGER_32) -- Create Current and apply flags to set attributes. -- Valid flags are the corresponding flags from EV_CHARACTER_FORMAT_CONSTANTS. -- Combine these in flags to set multiple attrbutes, e.g. to set the -- font height and font color as applicable perform: -- "make_with_flags (feature {EV_CHARACTER_FORMAT_CONSTANTS}.font_height | feature {EV_CHARACTER_FORMAT_CONSTANTS}.color)" require valid_flags: valid_character_format_flag (flags) ensure attributes_set: font_family = (flags | {EV_CHARACTER_FORMAT_CONSTANTS}.font_family = flags) and font_weight = (flags | {EV_CHARACTER_FORMAT_CONSTANTS}.font_weight = flags) and font_shape = (flags | {EV_CHARACTER_FORMAT_CONSTANTS}.font_shape = flags) and font_height = (flags | {EV_CHARACTER_FORMAT_CONSTANTS}.font_height = flags) and color = (flags | {EV_CHARACTER_FORMAT_CONSTANTS}.color = flags) and background_color = (flags | {EV_CHARACTER_FORMAT_CONSTANTS}.background_color = flags) and effects_striked_out = (flags | {EV_CHARACTER_FORMAT_CONSTANTS}.effects_striked_out = flags) and effects_underlined = (flags | {EV_CHARACTER_FORMAT_CONSTANTS}.effects_underlined = flags) and effects_vertical_offset = (flags | {EV_CHARACTER_FORMAT_CONSTANTS}.effects_vertical_offset = flags) 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 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_CHARACTER_FORMAT_RANGE_INFORMATION
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