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1 | -- Created on: 1992-02-11 |
2 | -- Created by: Christian CAILLET |
3 | -- Copyright (c) 1992-1999 Matra Datavision |
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4 | -- Copyright (c) 1999-2014 OPEN CASCADE SAS |
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5 | -- |
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6 | -- This file is part of Open CASCADE Technology software library. |
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7 | -- |
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8 | -- This library is free software; you can redistribute it and/or modify it under |
9 | -- the terms of the GNU Lesser General Public License version 2.1 as published |
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10 | -- by the Free Software Foundation, with special exception defined in the file |
11 | -- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
12 | -- distribution for complete text of the license and disclaimer of any warranty. |
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13 | -- |
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14 | -- Alternatively, this file may be used under the terms of Open CASCADE |
15 | -- commercial license or contractual agreement. |
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16 | |
17 | package StepData |
18 | |
19 | ---Purpose : Gives basic data definition for Step Interface. |
20 | -- Any class of a data model described in EXPRESS Language |
21 | -- is candidate to be managed by a Step Interface |
22 | |
23 | uses Standard, MMgt, TCollection, TColStd, Dico, LibCtl, Interface, Message |
24 | |
25 | is |
26 | |
27 | class StepModel; |
28 | class UndefinedEntity; |
29 | deferred class SelectType; |
30 | |
31 | enumeration Logical is LFalse, LTrue, LUnknown; |
32 | ---Purpose : A Standard Definition for STEP (which knows Boolean too) |
33 | |
34 | class Field; |
35 | class SelectMember; |
36 | class SelectInt; |
37 | class SelectReal; |
38 | class SelectNamed; |
39 | class SelectArrReal; |
40 | |
41 | class PDescr; |
42 | class FieldList; -- basic one (no field) |
43 | class FieldList1; |
44 | class FieldListN; |
45 | class FieldListD; |
46 | deferred class EDescr; |
47 | class ESDescr; |
48 | class ECDescr; |
49 | deferred class Described; |
50 | class Simple; |
51 | class Plex; |
52 | class FreeFormEntity; |
53 | |
54 | class Protocol; -- basic protocol for Step |
55 | deferred class GeneralModule; -- general services |
56 | |
57 | deferred class FileRecognizer instantiates |
58 | Recognizer from Interface (AsciiString from TCollection, Transient); |
59 | |
60 | class FileProtocol; |
61 | class HeaderTool; |
62 | class EnumTool; |
63 | |
64 | class DescrProtocol; |
65 | class DescrGeneral; |
66 | class DescrReadWrite; |
67 | |
68 | class StepReaderData; -- litteral description of Step File |
69 | class StepReaderTool; |
70 | deferred class ReadWriteModule; |
71 | class StepWriter; -- idem but in the other sense |
72 | class StepDumper; |
73 | |
74 | class WriterLib instantiates Library from LibCtl |
75 | (Transient, ReadWriteModule, Protocol from StepData); |
76 | |
77 | class DefaultGeneral; -- Default Module which processes UnknownEntity |
78 | |
79 | |
80 | -- General Routines -- |
81 | -- HeaderProtocol/AddHeaderProtocol are used to handle Header items : |
82 | -- Reading/Writing but also Copying,Checking,Dumping |
83 | -- |
84 | -- |
85 | -- Init & Protocol encapsulate the general actions required to work with |
86 | -- this package. While their use is not mandatory, it makes work easier. |
87 | |
88 | class Array1OfField instantiates Array1 from TCollection |
89 | (Field from StepData); |
90 | class HArray1OfField instantiates HArray1 from TCollection |
91 | (Field from StepData,Array1OfField from StepData); |
92 | |
93 | HeaderProtocol returns Protocol from StepData; |
94 | ---Purpose : Returns the recorded HeaderProtocol, which can be : |
95 | -- - a Null Handle if no Header Protocol was yet defined |
96 | -- - a simple Protocol if only one was defined |
97 | -- - a FileProtocol if more than one Protocol was yet defined |
98 | |
99 | AddHeaderProtocol (headerproto : Protocol from StepData); |
100 | ---Purpose : Adds a new Header Protocol to the Header Definition |
101 | |
102 | Init; |
103 | ---Purpose : Prepares General Data required to work with this package, |
104 | -- which are the Protocol and Modules to be loaded into Libraries |
105 | |
106 | Protocol returns Protocol from StepData; |
107 | ---Purpose : Returns a Protocol from StepData (avoids to create it) |
108 | |
109 | end StepData; |