indexing
	description: "Mswin implementation for objects that represent paragraph formatting information."
	legal: "See notice at end of class."
	status: "See notice at end of class."
	date: "$Date: 2006-01-22 18:25:44 -0800 (Sun, 22 Jan 2006) $"
	revision: "$Revision: 56675 $"

class interface
	EV_PARAGRAPH_FORMAT_IMP

create 
	make (an_interface: like interface)
			-- Make `Current' with interface `an_interface'.
		require -- from EV_ANY_I
			an_interface_not_void: an_interface /= Void
		ensure -- from EV_ANY_I
			interface_assigned: interface = an_interface
			base_make_called: base_make_called

feature -- Access

	wel_alignment: INTEGER_32
			-- Alignment type.
			-- See class WEL_PFA_CONSTANTS for values.
			-- (from WEL_PARAGRAPH_FORMAT)

	border_space: INTEGER_32
			-- Space between border and paragraph text in twips.
			-- Corresponds to wBorderWidth
			-- (from WEL_PARAGRAPH_FORMAT2)

	border_width: INTEGER_32
			-- Border width in twips. Corresponds to wBorderWidth member.
			-- (from WEL_PARAGRAPH_FORMAT2)

	borders: INTEGER_32
			-- Border location, style and color. Corresponds to
			-- wBorder member.
			-- (from WEL_PARAGRAPH_FORMAT2)

	effects: INTEGER_32
			-- Effects applicable to `Current', corresponding to wEffects member.
			-- (from WEL_PARAGRAPH_FORMAT2)

	generating_type: STRING_8
			-- Name of current object's generating type
			-- (type of which it is a direct instance)
			-- (from ANY)

	generator: STRING_8
			-- Name of current object's generating class
			-- (base class of the type of which it is a direct instance)
			-- (from ANY)

	initialize
			-- Initialize `Current'.
		ensure -- from EV_ANY_I
			is_initialized: is_initialized

	item: POINTER
			-- Generic Windows handle or structure pointer.
			-- Can be a HWND, HICON, RECT *, WNDCLASS *, etc...
			-- (from WEL_ANY)

	line_spacing: INTEGER_32
			-- Size of spacing between lines. Corresponds to
			-- dyLineSpacing member.
			-- (from WEL_PARAGRAPH_FORMAT2)

	line_spacing_rule: INTEGER_32
			-- Type of line spacing. Corresponds to bLineSpacingRule member.
			-- (from WEL_PARAGRAPH_FORMAT2)

	make (an_interface: like interface)
			-- Make `Current' with interface `an_interface'.
		require -- from EV_ANY_I
			an_interface_not_void: an_interface /= Void
		ensure -- from EV_ANY_I
			interface_assigned: interface = an_interface
			base_make_called: base_make_called

	mask: INTEGER_32
			-- Valid information or attributes to set.
			-- See class WEL_PFM_CONSTANTS for values.
			-- This attribut is automatically set by the
			-- features set_*.
			-- (from WEL_PARAGRAPH_FORMAT)

	numbering: INTEGER_32
			-- Numbering type
			-- (from WEL_PARAGRAPH_FORMAT)

	numbering_start: INTEGER_32
			-- Starting number for numbered paragraphs.
			-- Corresponds to wNumberingStart member
			-- (from WEL_PARAGRAPH_FORMAT2)

	numbering_style: INTEGER_32
			-- Numbering style used with numbered paragraphs.
			-- Corresponds to the wNumberingStyle member.
			-- (from WEL_PARAGRAPH_FORMAT2)

	numbering_tab: INTEGER_32
			-- Minimum space between paragraph number and
			-- paragraph text. Corresponds to wNumberingTab mamber.
			-- (from WEL_PARAGRAPH_FORMAT2)

	offset: INTEGER_32
			-- Indentation of the second line and subsequent
			-- lines, relative to the starting indentation. The
			-- first line is indented if this member is negative,
			-- or outdented is this member is positive.
			-- (from WEL_PARAGRAPH_FORMAT)

	right_indent: INTEGER_32
			-- Size of the right indentation, relative to the right
			-- margin
			-- (from WEL_PARAGRAPH_FORMAT)

	shading_style: INTEGER_32
			-- Style and colors used for background shading.
			-- Corresponds to wShadingStyle member.
			-- (from WEL_PARAGRAPH_FORMAT2)

	shading_weight: INTEGER_32
			-- Percentage of foreground color used in shading.
			-- Corresponds to wShadingWeight member.
			-- (from WEL_PARAGRAPH_FORMAT2)

	space_after: INTEGER_32
			-- Size of spacing after paragraph in twips. Corresponds to
			-- dySpaceAfter member.
			-- (from WEL_PARAGRAPH_FORMAT2)

	space_before: INTEGER_32
			-- Size of spacing before paragraph in twips. Corresponds to
			-- dySpaceBefore member.
			-- (from WEL_PARAGRAPH_FORMAT2)

	start_indent: INTEGER_32
			-- Indentation of the first line in the paragraph
			-- (from WEL_PARAGRAPH_FORMAT)

	style: INTEGER_32
			-- Text style. Corresponds to sStyle member.
			-- (from WEL_PARAGRAPH_FORMAT2)

	tabulations: ARRAY [INTEGER_32]
			-- Contains tab stops
			-- (from WEL_PARAGRAPH_FORMAT)
		ensure -- from WEL_PARAGRAPH_FORMAT
			result_not_void: Result /= Void
	
feature -- Measurement

	max_tab_stops: INTEGER_32
			-- (from WEL_PARAGRAPH_FORMAT)

	structure_size: INTEGER_32
			-- Size to allocate (in bytes)
			-- (from WEL_PARAGRAPH_FORMAT2)
		require -- from  WEL_STRUCTURE
			True
		ensure -- from WEL_STRUCTURE
			positive_result: Result > 0
	
feature -- Comparison

	frozen deep_equal (some: ANY; other: like arg #1): BOOLEAN
			-- Are `some' and `other' either both void
			-- or attached to isomorphic object structures?
			-- (from ANY)
		ensure -- from 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
			-- Are `some' and `other' either both void or attached
			-- to objects considered equal?
			-- (from ANY)
		ensure -- from ANY
			definition: Result = (some = Void and other = Void) or else ((some /= Void and other /= Void) and then some.is_equal (other))

	frozen standard_equal (some: ANY; other: like arg #1): BOOLEAN
			-- Are `some' and `other' 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
			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
			-- 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

	alignment: INTEGER_32
			-- Current alignment. See EV_PARAGRAPH_CONSTANTS
			-- for possible values.

	bottom_spacing: INTEGER_32
			-- Spacing between bottom of paragraph and next line in pixels.

	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

	exists: BOOLEAN
			-- Does the item exist?
			-- (from WEL_ANY)
		ensure -- from WEL_ANY
			Result = (item /= default_pointer)

	has_mask (a_mask: INTEGER_32): BOOLEAN
			-- Is `a_mask' set in mask?
			-- See class WEL_PFM_CONSTANTS for `a_mask' values.
			-- (from WEL_PARAGRAPH_FORMAT)

	left_margin: INTEGER_32
			-- Left margin between border and text in pixels.

	right_margin: INTEGER_32
			-- Right margin between line end and border in pixels.

	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))

	shared: BOOLEAN
			-- Is item shared by another object?
			-- If False (by default), item will
			-- be destroyed by `destroy_item'.
			-- If True, item will not be destroyed.
			-- (from WEL_ANY)

	top_spacing: INTEGER_32
			-- Spacing between top of paragraph and previous line in pixels.
	
feature -- Status setting

	set_alignment (an_alignment: INTEGER_32)
			-- Assign `an_alignment' to `alignment.
		ensure -- from EV_PARAGRAPH_FORMAT_I
			alignment_set: alignment = an_alignment

	set_bottom_spacing (a_spacing: INTEGER_32)
			-- Set bottom_spacing to `a_spacing'.
		require -- from EV_PARAGRAPH_FORMAT_I
			spacing_non_negative: a_spacing >= 0
		ensure -- from EV_PARAGRAPH_FORMAT_I
			spacing_set: bottom_spacing = a_spacing

	set_left_margin (a_margin: INTEGER_32)
			-- Set left_margin to `a_margin'.
		require -- from EV_PARAGRAPH_FORMAT_I
			margin_non_negative: a_margin >= 0
		ensure -- from EV_PARAGRAPH_FORMAT_I
			margin_set: left_margin = a_margin

	set_right_margin (a_margin: INTEGER_32)
			-- Set right_margin to `a_margin'.
		require -- from EV_PARAGRAPH_FORMAT_I
			margin_non_negative: a_margin >= 0
		ensure -- from EV_PARAGRAPH_FORMAT_I
			margin_set: right_margin = a_margin

	set_shared
			-- Set shared to True.
			-- (from WEL_ANY)
		ensure -- from WEL_ANY
			shared: shared

	set_top_spacing (a_spacing: INTEGER_32)
			-- Set top_spacing to `a_spacing'.
		require -- from EV_PARAGRAPH_FORMAT_I
			spacing_non_negative: a_spacing >= 0
		ensure -- from EV_PARAGRAPH_FORMAT_I
			spacing_set: top_spacing = a_spacing

	set_unshared
			-- Set shared to False.
			-- (from WEL_ANY)
		ensure -- from WEL_ANY
			unshared: not shared
	
feature -- Element change

	add_mask (a_mask: INTEGER_32)
			-- Add `a_mask' to mask.
			-- See class WEL_PFM_CONSTANTS for `a_mask' values.
			-- (from WEL_PARAGRAPH_FORMAT)
		ensure -- from WEL_PARAGRAPH_FORMAT
			has_mask: has_mask (a_mask)

	bullet_numbering
			-- Add bullets.
			-- (from WEL_PARAGRAPH_FORMAT)
		ensure -- from WEL_PARAGRAPH_FORMAT
			bullet_numbering: numbering = pfn_bullet

	no_numbering
			-- Remove any numbering.
			-- (from WEL_PARAGRAPH_FORMAT)
		ensure -- from WEL_PARAGRAPH_FORMAT
			no_numbering: numbering = 0

	remove_mask (a_mask: INTEGER_32)
			-- Remove `a_mask' from mask.
			-- See class WEL_PFM_CONSTANTS for `a_mask' values.
			-- (from WEL_PARAGRAPH_FORMAT)
		ensure -- from WEL_PARAGRAPH_FORMAT
			has_not_mask: not has_mask (a_mask)

	wel_set_alignment (an_alignment: INTEGER_32)
			-- Set alignment with `an_alignment'.
			-- See class WEL_PFA_CONSTANTS for values.
			-- (from WEL_PARAGRAPH_FORMAT)
		ensure -- from WEL_PARAGRAPH_FORMAT
			alignment_set: wel_alignment = an_alignment

	set_border_space (a_space: INTEGER_32)
			-- Set border_space to `a_space'.
			-- (from WEL_PARAGRAPH_FORMAT2)

	set_border_width (a_width: INTEGER_32)
			-- Set border_width to `a_width'.
			-- (from WEL_PARAGRAPH_FORMAT2)

	set_borders (a_border: INTEGER_32)
			-- Set borders to `a_border'.
			-- (from WEL_PARAGRAPH_FORMAT2)

	set_center_alignment
			-- Paragraphs are centered.
			-- (from WEL_PARAGRAPH_FORMAT)
		ensure -- from WEL_PARAGRAPH_FORMAT
			alignment_set: wel_alignment = pfa_center

	set_default_tabulation
			-- Set the default tabulation.
			-- (from WEL_PARAGRAPH_FORMAT)

	set_effects (an_effects: INTEGER_32)
			-- Set effects to `an_effects'.
			-- (from WEL_PARAGRAPH_FORMAT2)
		ensure -- from WEL_PARAGRAPH_FORMAT2
			effects_set: effects = an_effects

	set_item (an_item: POINTER)
			-- Set item with `an_item'
			-- (from WEL_ANY)
		ensure -- from WEL_ANY
			item_set: item = an_item

	set_left_alignment
			-- Paragraphs are aligned with the left margin.
			-- (from WEL_PARAGRAPH_FORMAT)
		ensure -- from WEL_PARAGRAPH_FORMAT
			alignment_set: wel_alignment = pfa_left

	set_line_spacing (space: INTEGER_32)
			-- Set line_spacing to `space'.
			-- (from WEL_PARAGRAPH_FORMAT2)
		ensure -- from WEL_PARAGRAPH_FORMAT2
			space_set: line_spacing = space

	set_line_spacing_rule (a_rule: INTEGER_32)
			-- Set line_spacing_rule to `a_rule'.
			-- (from WEL_PARAGRAPH_FORMAT2)

	set_mask (a_mask: INTEGER_32)
			-- Set mask with `a_mask'.
			-- See class WEL_PFM_CONSTANTS for `a_mask' values.
			-- (from WEL_PARAGRAPH_FORMAT)
		ensure -- from WEL_PARAGRAPH_FORMAT
			mask_set: mask = a_mask

	set_numbering_start (a_start: INTEGER_32)
			-- Set numbering_start to `a_start'.
			-- (from WEL_PARAGRAPH_FORMAT2)

	set_numbering_style (a_style: INTEGER_32)
			-- Set numbering_style to `a_style'.
			-- (from WEL_PARAGRAPH_FORMAT2)

	set_numbering_tab (a_tab: INTEGER_32)
			-- Set numbering_tab to `a_tab'.
			-- (from WEL_PARAGRAPH_FORMAT2)

	set_offset (an_offset: INTEGER_32)
			-- Set offset with `an_offset'.
			-- (from WEL_PARAGRAPH_FORMAT)
		ensure -- from WEL_PARAGRAPH_FORMAT
			offset_set: offset = an_offset

	set_right_alignment
			-- Paragraphs are aligned with the right margin.
			-- (from WEL_PARAGRAPH_FORMAT)
		ensure -- from WEL_PARAGRAPH_FORMAT
			alignment_set: wel_alignment = pfa_right

	set_right_indent (a_right_indent: INTEGER_32)
			-- Set right_indent with `a_right_indent'.
			-- (from WEL_PARAGRAPH_FORMAT)
		ensure -- from WEL_PARAGRAPH_FORMAT
			right_indent_set: right_indent = a_right_indent

	set_shading_style (a_style: INTEGER_32)
			-- Set shading_style to `a_style'.
			-- (from WEL_PARAGRAPH_FORMAT2)

	set_shading_weight (a_weight: INTEGER_32)
			-- Set `shading_widget' to `a_weight'.
			-- (from WEL_PARAGRAPH_FORMAT2)

	set_space_after (space: INTEGER_32)
			-- Set space_after to `space'.
			-- (from WEL_PARAGRAPH_FORMAT2)
		ensure -- from WEL_PARAGRAPH_FORMAT2
			space_set: space_after = space

	set_space_before (space: INTEGER_32)
			-- Set space_before to `space'.
			-- (from WEL_PARAGRAPH_FORMAT2)
		ensure -- from WEL_PARAGRAPH_FORMAT2
			space_set: space_before = space

	set_start_indent (a_start_indent: INTEGER_32)
			-- Set start_indent with `a_start_indent'.
			-- (from WEL_PARAGRAPH_FORMAT)
		ensure -- from WEL_PARAGRAPH_FORMAT
			start_indent_set: start_indent = a_start_indent

	set_style (a_style: INTEGER_32)
			-- Set style to `a_style'.
			-- (from WEL_PARAGRAPH_FORMAT2)

	set_tabulation (tab: INTEGER_32)
			-- Set a tab stop at every `tab'.
			-- (from WEL_PARAGRAPH_FORMAT)

	set_tabulations (tabs: ARRAY [INTEGER_32])
			-- Set tabulation stops using the values of `tabs'.
			-- (from WEL_PARAGRAPH_FORMAT)
		require -- from WEL_PARAGRAPH_FORMAT
			tabs_not_void: tabs /= Void
			tabs_count: tabs.count <= max_tab_stops
		ensure -- from WEL_PARAGRAPH_FORMAT
			tabulations_set: tabulations.same_items (tabs)
	
feature -- Removal

	dispose
			-- Destroy the inner structure of `Current'.
			--
			-- This function should be called by the GC when the
			-- object is collected or by the user if `Current' is
			-- no more usefull. 
			-- (from WEL_ANY)
	
feature -- Duplication

	frozen deep_copy (other: like Current)
			-- 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: like Current
			-- New object structure recursively duplicated from Current.
			-- (from ANY)
		ensure -- from ANY
			deep_equal: deep_equal (Current, Result)

	frozen standard_copy (other: like Current)
			-- 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: like Current
			-- 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: like Current
			-- New object equal to `Current'
			-- twin calls copy; to change copying/twining semantics, redefine copy.
			-- (from ANY)
		ensure -- from ANY
			twin_not_void: Result /= Void
			is_equal: Result.is_equal (Current)
	
feature -- Basic operations

	copy (other: like Current)
			-- Update current object using fields of object attached
			-- to `other', so as to yield equal objects.
			-- (from WEL_STRUCTURE)
		require -- from ANY
			other_not_void: other /= Void
			type_identity: same_type (other)
		ensure -- from ANY
			is_equal: is_equal (other)

	frozen default: like Current
			-- 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)

	default_rescue
			-- Process exception for routines with no Rescue clause.
			-- (Default: do nothing.)
			-- (from ANY)

	frozen do_nothing
			-- Execute a null action.
			-- (from ANY)

	wel_initialize
			-- Fill Current with zeros.
			-- (from WEL_STRUCTURE)
		require -- from WEL_STRUCTURE
			exists: exists

	initialize_with_character (a_character: CHARACTER_8)
			-- Fill current with `a_character'.
			-- (from WEL_STRUCTURE)
		require -- from WEL_STRUCTURE
			exists: exists

	is_equal (other: like Current): BOOLEAN
			-- Is `other' attached to an object considered
			-- equal to current object?
			-- (from WEL_STRUCTURE)
		require -- from ANY
			other_not_void: other /= Void
		ensure -- from ANY
			symmetric: Result implies other.is_equal (Current)
			consistent: standard_is_equal (other) implies Result

	memory_copy (source_pointer: POINTER; length: INTEGER_32)
			-- Copy `length' bytes from `source_pointer' to item.
			-- (from WEL_STRUCTURE)
		require -- from WEL_STRUCTURE
			length_small_enough: length <= structure_size
			length_large_enough: length > 0
			exists: exists
	
feature -- Output

	io: STD_FILES
			-- Handle to standard file setup
			-- (from ANY)

	out: STRING_8
			-- New string containing terse printable representation
			-- of current object
			-- Was declared in ANY as synonym of tagged_out.
			-- (from ANY)

	print (some: ANY)
			-- Write terse external representation of `some'
			-- on standard output.
			-- (from ANY)

	frozen tagged_out: STRING_8
			-- New string containing terse printable representation
			-- of current object
			-- Was declared in ANY as synonym of out.
			-- (from ANY)
	
feature -- Platform

	operating_environment: OPERATING_ENVIRONMENT
			-- Objects available from the operating system
			-- (from ANY)
	
invariant
		-- from EV_ANY_I
	interface_coupled: is_usable implies interface /= Void and then interface.implementation = Current
	base_make_called: base_make_called

		-- from 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 -- class EV_PARAGRAPH_FORMAT_IMP