indexing description: "[ Input field for a single line of `text'. ]" appearance: "[ +-------------+ | text | +-------------+ ]" status: "See notice at end of class" keywords: "input, text, field, query" date: "$Date$" revision: "$Revision$" class EV_TEXT_FIELD inherit EV_TEXT_COMPONENT redefine implementation, is_in_default_state end EV_FONTABLE redefine implementation, is_in_default_state end EV_TEXT_FIELD_ACTION_SEQUENCES redefine implementation end create default_create, make_with_text feature -- Access capacity: INTEGER is -- Number of characters field can hold. require not_destroyed: not is_destroyed do Result := implementation.capacity end feature -- Element change set_capacity (a_capacity: INTEGER) is -- Assign `a_capacity' to `capacity'. require not_destroyed: not is_destroyed a_capacity_not_negative: a_capacity >= 0 do implementation.set_capacity (a_capacity) end is_in_default_state: BOOLEAN is -- do Result := Precursor {EV_TEXT_COMPONENT} and Precursor {EV_FONTABLE} end feature {EV_ANY_I} -- Implementation implementation: EV_TEXT_FIELD_I -- Responsible for interaction with native graphics toolkit. feature {NONE} -- Implementation create_implementation is -- See `{EV_ANY}.create_implementation'. do create {EV_TEXT_FIELD_IMP} implementation.make (Current) end invariant capacity_not_negative: capacity >= 0 end -- class EV_TEXT_FIELD --|---------------------------------------------------------------- --| EiffelVision2: library of reusable components for ISE Eiffel. --| Copyright (C) 1986-2001 Interactive Software Engineering Inc. --| All rights reserved. Duplication and distribution prohibited. --| May be used only with ISE Eiffel, under terms of user license. --| Contact ISE for any other use. --| --| Interactive Software Engineering Inc. --| ISE Building --| 360 Storke Road, Goleta, CA 93117 USA --| Telephone 805-685-1006, Fax 805-685-6869 --| Electronic mail --| Customer support: http://support.eiffel.com> --| For latest info see award-winning pages: http://www.eiffel.com --|----------------------------------------------------------------