indexing
	description:
		"Constants for use by and with EV_FRAME."
	status: "See notice at end of class"
	keywords: "frame, bevel, outline, raised, lowered" 
	date: "$Date$"
	revision: "$Revision$"

class
	EV_FRAME_CONSTANTS

feature -- Constants

	Ev_frame_lowered: INTEGER is unique
			-- Inward bevel.

	Ev_frame_raised: INTEGER is unique
			-- Outward bevel.

	Ev_frame_etched_in: INTEGER is unique
			-- Sunken groove.

	Ev_frame_etched_out: INTEGER is unique
			-- Raised ridge.

feature -- Contract support

	valid_frame_border (a_code: INTEGER): BOOLEAN is
			-- Is `a_code' a valid code ?
		do
			Result := a_code = Ev_frame_lowered or else
				a_code = Ev_frame_raised or else
				a_code = Ev_frame_etched_in or else
				a_code = Ev_frame_etched_out
		end

end -- class EV_FRAME_CONSTANTS

--|----------------------------------------------------------------
--| EiffelVision2: library of reusable components for ISE Eiffel.
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--| Contact ISE for any other use.
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