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6e33d3ced2
Redundant keyword 'mutable' removed in CDL files. In IGESConvGeom_GeomBuilder, unused methods MakeXY() and MakeXYZ() removed. Method StepAP214_AutoDesignGroupAssignment::Init() replicating same method of the base class is removed as it causes CDL extraction error after above (seemingly irrelevant) changes.
88 lines
4.5 KiB
Plaintext
88 lines
4.5 KiB
Plaintext
-- Created on: 1994-05-27
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-- Created by: Christian CAILLET
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-- Copyright (c) 1994-1999 Matra Datavision
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-- Copyright (c) 1999-2014 OPEN CASCADE SAS
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--
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-- This file is part of Open CASCADE Technology software library.
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--
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-- This library is free software; you can redistribute it and/or modify it under
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-- the terms of the GNU Lesser General Public License version 2.1 as published
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-- by the Free Software Foundation, with special exception defined in the file
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-- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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-- distribution for complete text of the license and disclaimer of any warranty.
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--
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-- Alternatively, this file may be used under the terms of Open CASCADE
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-- commercial license or contractual agreement.
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deferred class Transformer from IFSelect inherits TShared
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---Purpose : A Transformer defines the way an InterfaceModel is transformed
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-- (without sending it to a file).
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-- In order to work, each type of Transformer defines it method
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-- Perform, it can be parametred as needed.
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--
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-- It receives a Model (the data set) as input. It then can :
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-- - edit this Model on the spot (i.e. alter its content : by
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-- editing entities, or adding/replacing some ...)
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-- - produce a copied Model, which detains the needed changes
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-- (typically on the same type, but some or all entities beeing
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-- rebuilt or converted; or converted from a protocol to
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-- another one)
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uses AsciiString from TCollection,
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CheckIterator, Graph, Protocol from Interface, InterfaceModel
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is
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Perform (me : mutable; G : Graph; protocol : Protocol from Interface;
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checks : in out CheckIterator;
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newmod : out InterfaceModel) returns Boolean is deferred;
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---Purpose : Performs a Transformation (defined by each sub-class) :
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-- <G> gives the input data (especially the starting model) and
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-- can be used for queries (by Selections, etc...)
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-- <protocol> allows to work with General Services as necessary
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-- (it applies to input data)
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-- If the change corresponds to a conversion to a new protocol,
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-- see also the method ChangeProtocol
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-- <checks> stores produced checks messages if any
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-- <newmod> gives the result of the transformation :
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-- - if it is Null (i.e. has not been affected), the transformation
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-- has been made on the spot, it is assumed to cause no change
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-- to the graph of dependances
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-- - if it equates the starting Model, it has been transformed on
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-- the spot (possibiliy some entities were replaced inside it)
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-- - if it is new, it corresponds to a new data set which replaces
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-- the starting one
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--
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-- <me> is mutable to allow results for ChangeProtocol to be
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-- memorized if needed, and to store informations useful for
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-- the method Updated
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--
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-- Returns True if Done, False if an Error occured : in this case,
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-- if a new data set has been produced, the transformation
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-- is ignored, else data may be corrupted.
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ChangeProtocol (me; newproto : in out Protocol from Interface)
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returns Boolean is virtual;
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---Purpose : This methods allows to declare that the Protocol applied to
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-- the new Model has changed. It applies to the last call to
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-- Perform.
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--
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-- Returns True if the Protocol has changed, False else.
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-- The provided default keeps the starting Protocol. This method
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-- should be redefined as required by the effect of Perform.
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Updated (me; entfrom : Transient; entto : out Transient)
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returns Boolean is deferred;
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---Purpose : This method allows to know what happened to a starting
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-- entity after the last Perform. If <entfrom> (from starting
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-- model) has one and only one known item which corresponds in
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-- the new produced model, this method must return True and
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-- fill the argument <entto>. Else, it returns False.
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Label (me) returns AsciiString from TCollection is deferred;
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---Purpose : Returns a text which defines the way a Transformer works
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-- (to identify the transformation it performs)
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end Transformer;
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