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note description: "Objects that hold the current formatting applied while loading a RTF file." legal: "See notice at end of class." status: "See notice at end of class." author: "" date: "$Date: 2013-01-28 16:14:10 -0900 (Mon, 28 Jan 2013) $" revision: "$Revision: 91071 $" class interface RTF_FORMAT_I create default_create -- Create Current feature -- Access alignment: INTEGER_32 -- Alignment of text. boolean_out (a_boolean: BOOLEAN): STRING_8 bottom_spacing: INTEGER_32 -- Bottom spacing character_format: INTEGER_32 -- Current character format index. character_format_out: STRING_8 -- Result is representation of character format attributes of Current. -- Paragraph and formats need to be buffered independently, hence a -- separate out feature for each of these set of attributes. color_set: BOOLEAN -- Has text_color been explicitly set and does not correspond to auto? False_constant: STRING_8 = "F" font_height: INTEGER_32 -- Height of font used by format. generating_type: TYPE [detachable RTF_FORMAT_I] -- 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 highlight_color: INTEGER_32 -- Highlighting applied to text. highlight_set: BOOLEAN -- Has highlight_color been explicitly set and does not correspond to auto? is_bold: BOOLEAN -- Is format bold? is_italic: BOOLEAN -- Is format italic? is_striked_out: BOOLEAN -- Is format striken out? is_underlined: BOOLEAN -- Is format underlined? left_margin: INTEGER_32 -- Left margin paragraph_format_out: STRING_8 -- Result is representation of paragraph format attributes of Current. -- Paragraph and formats need to be buffered independently, hence a -- separate out fetaure for each of these set of attributes. reset_paragraph -- Ensure all paragraph formatting attributes are reset to -- default values. ensure alignment = Alignment_left left_margin = 0 right_margin = 0 top_spacing = 0 bottom_spacing = 0 right_margin: INTEGER_32 -- Right margin text_color: INTEGER_32 -- Text color of format top_spacing: INTEGER_32 -- Top spacing True_constant: STRING_8 = "T" vertical_offset: INTEGER_32 -- Vertical offset 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: RTF_FORMAT_I): 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: RTF_FORMAT_I): 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: RTF_FORMAT_I): 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 set_alignment (an_alignment: INTEGER_32) -- Set alignment to an_alignment. require valid_alignment: valid_alignment (an_alignment) ensure alignment_set: alignment = an_alignment set_bold (a_is_bold: BOOLEAN) -- Set is_bold to a_is_bold. ensure is_bold_assigned: is_bold = a_is_bold set_bottom_spacing (a_bottom_spacing: INTEGER_32) -- Set bottom_spacing to a_bottom_spacing. require a_bottom_spacing_non_negative: a_bottom_spacing >= 0 ensure bottom_spacing_assigned: bottom_spacing = a_bottom_spacing set_character_format (a_character_format: INTEGER_32) -- Set character_format to a_character_format. require a_character_format_non_negative: a_character_format >= 0 ensure character_format_assigned: character_format = a_character_format set_font_height (a_font_height: INTEGER_32) -- Set font_height to a_font_height. require a_font_height_positive: a_font_height > 0 ensure font_height_assigned: font_height = a_font_height set_highlight_color (a_highlight_color: INTEGER_32) -- Set highlight_color to a_highlight_color. require a_highlight_color_non_negative: a_highlight_color >= 0 ensure highlight_color_assigned: highlight_color = a_highlight_color set_italic (an_is_italic: BOOLEAN) -- Set is_italic to an_is_italic. ensure is_italic_assigned: is_italic = an_is_italic set_left_margin (a_left_margin: INTEGER_32) -- Set left_margin to a_left_margin. require a_left_margin_non_negative: a_left_margin >= 0 ensure left_margin_assigned: left_margin = a_left_margin set_right_margin (a_right_margin: INTEGER_32) -- Set right_margin to a_right_margin. require a_right_margin_non_negative: a_right_margin >= 0 ensure right_margin_assigned: right_margin = a_right_margin set_striked_out (an_is_striked_out: BOOLEAN) -- Set is_striked_out to an_is_striked_out. ensure is_striked_out_assigned: is_striked_out = an_is_striked_out set_text_color (a_text_color: INTEGER_32) -- Set text_color to a_text_color. require a_text_color_non_negative: a_text_color >= 0 ensure text_color_assigned: text_color = a_text_color set_top_spacing (a_top_spacing: INTEGER_32) -- Set top_spacing to a_top_spacing. require a_top_spacing_non_negative: a_top_spacing >= 0 ensure top_spacing_assigned: top_spacing = a_top_spacing set_underlined (an_is_underlined: BOOLEAN) -- Set is_underlined to an_is_underlined. ensure is_underlined: is_underlined = an_is_underlined set_vertical_offset (an_offset: INTEGER_32) -- Set vertical_offset to an_offset. ensure offset_set: vertical_offset = an_offset feature -- Duplication copy (other: RTF_FORMAT_I) -- 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: RTF_FORMAT_I) -- 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: RTF_FORMAT_I -- 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: RTF_FORMAT_I) -- 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: RTF_FORMAT_I -- 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: RTF_FORMAT_I -- 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 RTF_FORMAT_I -- 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 -- Constants Alignment_center: INTEGER_32 = 2 -- Aligned center. -- (from EV_PARAGRAPH_CONSTANTS) Alignment_justified: INTEGER_32 = 4 -- Justified. -- (from EV_PARAGRAPH_CONSTANTS) Alignment_left: INTEGER_32 = 1 -- Aligned left. -- (from EV_PARAGRAPH_CONSTANTS) Alignment_right: INTEGER_32 = 3 -- Aligned right. -- (from EV_PARAGRAPH_CONSTANTS) feature -- Contract support valid_alignment (an_alignment: INTEGER_32): BOOLEAN -- Is an_alignment a valid alignment? -- (from EV_PARAGRAPH_CONSTANTS) valid_paragraph_flag (a_flag: INTEGER_32): BOOLEAN -- Is a_flag a valid paragraph flag? -- Used by EV_PARAGRAPH_FORMAT_RANGE_INFORMATION. -- (from EV_PARAGRAPH_CONSTANTS) 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 -- Paragraph flags. Alignment_constant: INTEGER_32 = 1 -- Alignment is applicable. -- (from EV_PARAGRAPH_CONSTANTS) Bottom_spacing_constant: INTEGER_32 = 16 -- Bottom spacing is applicable. -- (from EV_PARAGRAPH_CONSTANTS) Left_margin_constant: INTEGER_32 = 2 -- Left margin is applicable. -- (from EV_PARAGRAPH_CONSTANTS) Right_margin_constant: INTEGER_32 = 4 -- Right margin is applicable. -- (from EV_PARAGRAPH_CONSTANTS) Top_spacing_constant: INTEGER_32 = 8 -- Top spacing is applicable. -- (from EV_PARAGRAPH_CONSTANTS) 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 character_format_non_negative: character_format >= 0 font_height_non_negative: font_height >= 0 text_color_non_negative: text_color >= 0 highlight_color_non_negative: highlight_color >= 0 left_margin_non_negative: left_margin >= 0 right_margin_non_negative: right_margin >= 0 top_spacing_non_negative: top_spacing >= 0 bottom_spacing_non_negative: bottom_spacing >= 0 -- 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 RTF_FORMAT_I
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