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-- File: StepData.cdl
-- Created: Tue Feb 11 15:39:51 1992
-- Author: Christian CAILLET
-- <cky@phobox>
---Copyright: Matra Datavision 1992
package StepData
---Purpose : Gives basic data definition for Step Interface.
-- Any class of a data model described in EXPRESS Language
-- is candidate to be managed by a Step Interface
uses Standard, MMgt, TCollection, TColStd, Dico, LibCtl, Interface, Message
is
class StepModel;
class UndefinedEntity;
deferred class SelectType;
enumeration Logical is LFalse, LTrue, LUnknown;
---Purpose : A Standard Definition for STEP (which knows Boolean too)
class Field;
class SelectMember;
class SelectInt;
class SelectReal;
class SelectNamed;
class SelectArrReal;
class PDescr;
class FieldList; -- basic one (no field)
class FieldList1;
class FieldListN;
class FieldListD;
deferred class EDescr;
class ESDescr;
class ECDescr;
deferred class Described;
class Simple;
class Plex;
class FreeFormEntity;
class Protocol; -- basic protocol for Step
deferred class GeneralModule; -- general services
deferred class FileRecognizer instantiates
Recognizer from Interface (AsciiString from TCollection, Transient);
class FileProtocol;
class HeaderTool;
class EnumTool;
class DescrProtocol;
class DescrGeneral;
class DescrReadWrite;
class StepReaderData; -- litteral description of Step File
class StepReaderTool;
deferred class ReadWriteModule;
class StepWriter; -- idem but in the other sense
class StepDumper;
class WriterLib instantiates Library from LibCtl
(Transient, ReadWriteModule, Protocol from StepData);
class DefaultGeneral; -- Default Module which processes UnknownEntity
-- General Routines --
-- HeaderProtocol/AddHeaderProtocol are used to handle Header items :
-- Reading/Writing but also Copying,Checking,Dumping
--
--
-- Init & Protocol encapsulate the general actions required to work with
-- this package. While their use is not mandatory, it makes work easier.
class Array1OfField instantiates Array1 from TCollection
(Field from StepData);
class HArray1OfField instantiates HArray1 from TCollection
(Field from StepData,Array1OfField from StepData);
HeaderProtocol returns Protocol from StepData;
---Purpose : Returns the recorded HeaderProtocol, which can be :
-- - a Null Handle if no Header Protocol was yet defined
-- - a simple Protocol if only one was defined
-- - a FileProtocol if more than one Protocol was yet defined
AddHeaderProtocol (headerproto : Protocol from StepData);
---Purpose : Adds a new Header Protocol to the Header Definition
Init;
---Purpose : Prepares General Data required to work with this package,
-- which are the Protocol and Modules to be loaded into Libraries
Protocol returns Protocol from StepData;
---Purpose : Returns a Protocol from StepData (avoids to create it)
end StepData;
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