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License statement text corrected; compiler warnings caused by Bison 2.41 disabled for MSVC; a few other compiler warnings on 54-bit Windows eliminated by appropriate type cast Wrong license statements corrected in several files. Copyright and license statements added in XSD and GLSL files. Copyright year updated in some files. Obsolete documentation files removed from DrawResources.
85 lines
4.0 KiB
Plaintext
85 lines
4.0 KiB
Plaintext
-- Created on: 1993-09-06
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-- Created by: Christian CAILLET
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-- Copyright (c) 1993-1999 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 ReadWriteModule from IGESData
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inherits ReaderModule from Interface
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---Purpose : Defines basic File Access Module, under the control of
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-- IGESReaderTool for Reading and IGESWriter for Writing :
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-- Specific actions concern : Read and Write Own Parameters of
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-- an IGESEntity.
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-- The common parts (Directory Entry, Lists of Associativities
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-- and Properties) are processed by IGESReaderTool & IGESWriter
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--
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-- Each sub-class of ReadWriteModule is used in conjunction with
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-- a sub-class of Protocol from IGESData and processes several
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-- types of IGESEntity (typically, them of a package) :
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-- The Protocol gives a unique positive integer Case Number for
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-- each type of IGESEntity it recognizes, the corresponding
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-- ReadWriteModule processes an Entity by using the Case Number
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-- to known what is to do
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-- On Reading, the general service NewVoid is used to create an
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-- IGES Entity the first time
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--
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-- Warning : Works with an IGESReaderData which stores "DE parts" of Items
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uses Transient, FileReaderData, Check,
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IGESEntity, DirPart, IGESReaderData, ParamReader, IGESWriter
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raises DomainError
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is
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CaseNum (me; data : FileReaderData; num : Integer) returns Integer;
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---Purpose : Translates the Type of record <num> in <data> to a positive
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-- Case Number, or 0 if failed.
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-- Works with IGESReaderData which provides Type & Form Numbers,
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-- and calls CaseIGES (see below)
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CaseIGES (me; typenum, formnum : Integer) returns Integer is deferred;
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---Purpose : Defines Case Numbers corresponding to the Entity Types taken
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-- into account by a sub-class of ReadWriteModule (hence, each
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-- sub-class of ReadWriteModule has to redefine this method)
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-- Called by CaseNum. Its result will then be used to call
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-- Read, etc ...
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Read (me; CN : Integer; data : FileReaderData; num : Integer;
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ach : in out Check; ent : mutable Transient)
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raises DomainError;
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---Purpose : General Read Function. See IGESReaderTool for more info
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ReadOwnParams (me; CN : Integer; ent : mutable IGESEntity;
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IR : IGESReaderData; PR : in out ParamReader)
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raises DomainError is deferred;
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---Purpose : Reads own parameters from file for an Entity; <PR> gives
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-- access to them, <IR> detains parameter types and values
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-- For each class, there must be a specific action provided
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-- Note that Properties and Associativities Lists are Read by
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-- specific methods (see below), they are called under control
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-- of reading process (only one call) according Stage recorded
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-- in ParamReader
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WriteOwnParams (me; CN : Integer; ent : IGESEntity;
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IW : in out IGESWriter)
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is deferred;
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---Purpose : Writes own parameters to IGESWriter; defined for each class
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-- (to be redefined for other IGES ReadWriteModules)
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-- Warning : Properties and Associativities are directly managed by
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-- WriteIGES, must not be sent by this method
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end ReadWriteModule;
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