    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