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1 | // Created on: 1992-04-06 |
2 | // Created by: Christian CAILLET |
3 | // Copyright (c) 1992-1999 Matra Datavision |
4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
5 | // |
6 | // This file is part of Open CASCADE Technology software library. |
7 | // |
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 |
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. |
13 | // |
14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. |
16 | |
17 | #ifndef _IGESData_IGESReaderTool_HeaderFile |
18 | #define _IGESData_IGESReaderTool_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_DefineAlloc.hxx> |
22 | #include <Standard_Handle.hxx> |
23 | |
24 | #include <Interface_GeneralLib.hxx> |
25 | #include <Interface_ReaderLib.hxx> |
26 | #include <Standard_Integer.hxx> |
27 | #include <IGESData_IGESType.hxx> |
28 | #include <IGESData_ReadStage.hxx> |
29 | #include <Standard_Real.hxx> |
30 | #include <Interface_FileReaderTool.hxx> |
31 | #include <Standard_Boolean.hxx> |
32 | class Interface_ParamList; |
33 | class IGESData_FileRecognizer; |
34 | class Interface_Check; |
35 | class IGESData_IGESReaderData; |
36 | class IGESData_Protocol; |
37 | class Standard_Transient; |
38 | class Interface_InterfaceModel; |
39 | class IGESData_IGESEntity; |
40 | class IGESData_DirPart; |
41 | class IGESData_ParamReader; |
42 | |
43 | |
44 | //! specific FileReaderTool for IGES |
45 | //! Parameters are accessed through specific objects, ParamReaders |
46 | class IGESData_IGESReaderTool : public Interface_FileReaderTool |
47 | { |
48 | public: |
49 | |
50 | DEFINE_STANDARD_ALLOC |
51 | |
52 | |
53 | //! creates IGESReaderTool to work with an IGESReaderData and an |
54 | //! IGES Protocol. |
55 | //! Actually, no Lib is used |
56 | Standard_EXPORT IGESData_IGESReaderTool(const Handle(IGESData_IGESReaderData)& reader, const Handle(IGESData_Protocol)& protocol); |
57 | |
58 | //! binds empty entities to records, works with the Protocol |
59 | //! (from IGESData) stored and later used |
60 | //! RQ : Actually, sets DNum into IGES Entities |
61 | //! Also loads the list of parameters for ParamReader |
62 | Standard_EXPORT void Prepare (const Handle(IGESData_FileRecognizer)& reco); |
63 | |
64 | //! recognizes records by asking Protocol (on data of DirType) |
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65 | Standard_EXPORT Standard_Boolean Recognize (const Standard_Integer num, Handle(Interface_Check)& ach, Handle(Standard_Transient)& ent) Standard_OVERRIDE; |
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66 | |
67 | //! fills model's header, that is, its GlobalSection |
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68 | Standard_EXPORT void BeginRead (const Handle(Interface_InterfaceModel)& amodel) Standard_OVERRIDE; |
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69 | |
70 | //! fills an entity, given record no; works by calling ReadDirPart |
71 | //! then ReadParams (with help of a ParamReader), then if required |
72 | //! ReadProps and ReadAssocs, from IGESEntity |
73 | //! Returns True if no fail has been recorded |
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74 | Standard_EXPORT Standard_Boolean AnalyseRecord (const Standard_Integer num, const Handle(Standard_Transient)& anent, Handle(Interface_Check)& acheck) Standard_OVERRIDE; |
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75 | |
76 | //! after reading entities, true line weights can be computed |
77 | Standard_EXPORT virtual void EndRead (const Handle(Interface_InterfaceModel)& amodel) Standard_OVERRIDE; |
78 | |
79 | //! Reads directory part componants from file; DP is the litteral |
80 | //! directory part, IR detains entities referenced by DP |
81 | Standard_EXPORT void ReadDir (const Handle(IGESData_IGESEntity)& ent, const Handle(IGESData_IGESReaderData)& IR, const IGESData_DirPart& DP, Handle(Interface_Check)& ach) const; |
82 | |
83 | //! Performs Reading of own Parameters for each IGESEntity |
84 | //! Works with the ReaderLib loaded with ReadWriteModules for IGES |
85 | //! In case of failure, tries UndefinedEntity from IGES |
86 | Standard_EXPORT void ReadOwnParams (const Handle(IGESData_IGESEntity)& ent, const Handle(IGESData_IGESReaderData)& IR, IGESData_ParamReader& PR) const; |
87 | |
88 | //! Reads Property List, if there is (if not, does nothing) |
89 | //! criterium is : current parameter of PR remains inside params |
90 | //! list, and Stage is "Own" |
91 | //! Current parameter must be a positive integer, which value |
92 | //! gives the length of the list; else, a Fail is produced (into |
93 | //! Check of PR) and reading process is stopped |
94 | Standard_EXPORT void ReadProps (const Handle(IGESData_IGESEntity)& ent, const Handle(IGESData_IGESReaderData)& IR, IGESData_ParamReader& PR) const; |
95 | |
96 | //! Reads Associativity List, if there is (if not, does nothing) |
97 | //! criterium is : current parameter of PR remains inside params |
98 | //! list, and Stage is "Own" |
99 | //! Same conditions as above; in addition, no parameter must be |
100 | //! let after the list once read |
101 | //! Note that "Associated" entities are not declared "Shared" |
102 | Standard_EXPORT void ReadAssocs (const Handle(IGESData_IGESEntity)& ent, const Handle(IGESData_IGESReaderData)& IR, IGESData_ParamReader& PR) const; |
103 | |
104 | |
105 | |
106 | |
107 | protected: |
108 | |
109 | |
110 | |
111 | |
112 | |
113 | private: |
114 | |
115 | |
116 | |
117 | Handle(Interface_ParamList) thelist; |
118 | Handle(IGESData_FileRecognizer) thereco; |
119 | Interface_GeneralLib theglib; |
120 | Interface_ReaderLib therlib; |
121 | Standard_Integer thecnum; |
122 | IGESData_IGESType thectyp; |
123 | IGESData_ReadStage thestep; |
124 | Handle(Interface_Check) thechk; |
125 | Standard_Integer thegradweight; |
126 | Standard_Real themaxweight; |
127 | Standard_Real thedefweight; |
128 | |
129 | |
130 | }; |
131 | |
132 | |
133 | |
134 | |
135 | |
136 | |
137 | |
138 | #endif // _IGESData_IGESReaderTool_HeaderFile |