note description: "Eiffel Vision item. Implementation interface." legal: "See notice at end of class." status: "See notice at end of class." keywords: "item" date: "$Date$" revision: "$Revision$" deferred class EV_ITEM_I inherit EV_PICK_AND_DROPABLE_I redefine interface end EV_PIXMAPABLE_I redefine interface end EV_ITEM_ACTION_SEQUENCES_I feature -- Access parent: detachable EV_ITEM_LIST [EV_ITEM] -- Item list containing `Current'. do if attached parent_imp as l_parent_imp then Result ?= l_parent_imp.interface check parent_not_void: Result /= Void end end end parent_imp: detachable EV_ITEM_LIST_I [EV_ITEM] -- The parent of the Current widget -- Can be void. deferred end feature {EV_ANY_I} -- Implementation update_for_pick_and_drop (starting: BOOLEAN) -- Pick and drop status has changed so update appearance of -- `Current' to reflect available targets. deferred end feature {EV_ANY, EV_ANY_I} -- Implementation interface: detachable EV_ITEM note option: stable attribute end; -- Provides a common user interface to platform dependent -- functionality implemented by `Current' note copyright: "Copyright (c) 1984-2012, Eiffel Software and others" license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)" source: "[ Eiffel Software 5949 Hollister Ave., 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_ITEM_I