-- Created on: 1992-11-17 -- Created by: Christian CAILLET -- Copyright (c) 1992-1999 Matra Datavision -- Copyright (c) 1999-2012 OPEN CASCADE SAS -- -- The content of this file is subject to the Open CASCADE Technology Public -- License Version 6.5 (the "License"). You may not use the content of this file -- except in compliance with the License. Please obtain a copy of the License -- at http://www.opencascade.org and read it completely before using this file. -- -- The Initial Developer of the Original Code is Open CASCADE S.A.S., having its -- main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. -- -- The Original Code and all software distributed under the License is -- distributed on an "AS IS" basis, without warranty of any kind, and the -- Initial Developer hereby disclaims all such warranties, including without -- limitation, any warranties of merchantability, fitness for a particular -- purpose or non-infringement. Please see the License for the specific terms -- and conditions governing the rights and limitations under the License. deferred class Selection from IFSelect inherits TShared ---Purpose : A Selection allows to define a set of Interface Entities. -- Entities to be put on an output file should be identified in -- a way as independant from such or such execution as possible. -- This permits to handle comprehensive criteria, and to replay -- them when a new variant of an input file has to be processed. -- -- Its input can be, either an Interface Model (the very source), -- or another-other Selection(s) or any other ouput. All list -- computations start from an input Graph (from IFGraph) uses AsciiString from TCollection, EntityIterator, Graph, SelectionIterator raises InterfaceError is RootResult (me; G : Graph) returns EntityIterator raises InterfaceError is deferred; ---Purpose : Returns the list of selected entities, computed from Input -- given as a Graph. Specific to each class of Selection -- Note that uniqueness of each entity is not required here -- This method can raise an exception as necessary HasUniqueResult (me) returns Boolean is virtual protected; ---Purpose : Returns True if RootResult guarantees uniqueness for each -- Entity. Called by UniqueResult. -- Default answer is False. Can be redefined. UniqueResult (me; G : Graph) returns EntityIterator; ---Purpose : Returns the list of selected entities, each of them beeing -- unique. Default definition works from RootResult. According -- HasUniqueResult, UniqueResult returns directly RootResult, -- or build a Unique Result from it with a Graph. CompleteResult (me; G : Graph) returns EntityIterator is virtual; ---Purpose : Returns the list of entities involved by a Selection, i.e. -- UniqueResult plus the shared entities (directly or not) FillIterator (me; iter : in out SelectionIterator) is deferred; ---Purpose : Puts in an Iterator the Selections from which "me" depends -- (there can be zero, or one, or a list). -- Specific to each class of Selection Label (me) returns AsciiString from TCollection is deferred; ---Purpose : Returns a text which defines the criterium applied by a -- Selection (can be used to be printed, displayed ...) -- Specific to each class end Selection;