note
	description: "Implementation interface for objects that represent paragraph formatting information."
	legal: "See notice at end of class."
	status: "See notice at end of class."
	date: "$Date$"
	revision: "$Revision$"

deferred class
	EV_PARAGRAPH_FORMAT_I

inherit
	EV_ANY_I
		redefine
			interface
		end

feature -- Status report

	alignment: INTEGER
			-- Current alignment. See EV_PARAGRAPH_CONSTANTS
			-- for possible values.
		deferred
		end

	left_margin: INTEGER
			-- Left margin between border and text in pixels.
		deferred
		end

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

	top_spacing: INTEGER
			-- Spacing between top of paragraph and previous line in pixels.
		deferred
		end

	bottom_spacing: INTEGER
			-- Spacing between bottom of paragraph and next line in pixels.
		deferred
		end

feature -- Status setting

	set_alignment (an_alignment: INTEGER)
			-- Assign `an_alignment' to `alignment.
		deferred
		ensure
			alignment_set: alignment = an_alignment
		end

	set_left_margin (a_margin: INTEGER)
			-- Set `left_margin' to `a_margin'.
		require
			margin_non_negative: a_margin >= 0
		deferred
		ensure
			margin_set: left_margin = a_margin
		end

	set_right_margin (a_margin: INTEGER)
			-- Set `right_margin' to `a_margin'.
		require
			margin_non_negative: a_margin >= 0
		deferred
		ensure
			margin_set: right_margin = a_margin
		end

	set_top_spacing (a_spacing: INTEGER)
			-- Set `top_spacing' to `a_spacing'.
		require
			spacing_non_negative: a_spacing >= 0
		deferred
		ensure
			spacing_set: top_spacing = a_spacing
		end

	set_bottom_spacing (a_spacing: INTEGER)
			-- Set `bottom_spacing' to `a_spacing'.
		require
			spacing_non_negative: a_spacing >= 0
		deferred
		ensure
			spacing_set: bottom_spacing = a_spacing
		end

feature {EV_ANY, EV_ANY_I} -- Implementation

	interface: detachable EV_PARAGRAPH_FORMAT note option: stable attribute end;

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_PARAGRAPH_FORMAT_I