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1 | // Created on: 1992-02-03 |
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 _Transfer_ActorOfProcessForTransient_HeaderFile |
18 | #define _Transfer_ActorOfProcessForTransient_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_Type.hxx> |
22 | |
23 | #include <Standard_Boolean.hxx> |
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24 | #include <Standard_Transient.hxx> |
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25 | #include <TColStd_MapTransientHasher.hxx> |
26 | #include <TColStd_HSequenceOfTransient.hxx> |
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27 | #include <Transfer_TransferMapOfProcessForTransient.hxx> |
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28 | #include <Message_ProgressRange.hxx> |
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29 | |
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30 | class Standard_DomainError; |
31 | class Standard_Transient; |
32 | class Transfer_ProcessForTransient; |
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33 | class Transfer_IteratorOfProcessForTransient; |
34 | class Transfer_Binder; |
35 | class Transfer_SimpleBinderOfTransient; |
36 | |
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37 | class Transfer_ActorOfProcessForTransient; |
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38 | DEFINE_STANDARD_HANDLE(Transfer_ActorOfProcessForTransient, Standard_Transient) |
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39 | |
40 | |
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41 | class Transfer_ActorOfProcessForTransient : public Standard_Transient |
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42 | { |
43 | |
44 | public: |
45 | |
46 | |
47 | Standard_EXPORT Transfer_ActorOfProcessForTransient(); |
48 | |
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49 | //! Prerequesite for Transfer : the method Transfer is |
50 | //! called on a starting object only if Recognize has |
51 | //! returned True on it |
52 | //! This allows to define a list of Actors, each one |
53 | //! processing a definite kind of data |
54 | //! TransferProcess calls Recognize on each one before |
55 | //! calling Transfer. But even if Recognize has returned |
56 | //! True, Transfer can reject by returning a Null Binder |
57 | //! (afterwards rejection), the next actor is then invoked |
58 | //! |
59 | //! The provided default returns True, can be redefined |
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60 | Standard_EXPORT virtual Standard_Boolean Recognize (const Handle(Standard_Transient)& start); |
61 | |
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62 | //! Specific action of Transfer. The Result is stored in |
63 | //! the returned Binder, or a Null Handle for "No result" |
64 | //! (Default defined as doing nothing; should be deffered) |
65 | //! "mutable" allows the Actor to record intermediate |
66 | //! information, in addition to those of TransferProcess |
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67 | Standard_EXPORT virtual Handle(Transfer_Binder) Transferring |
68 | (const Handle(Standard_Transient)& start, |
69 | const Handle(Transfer_ProcessForTransient)& TP, |
70 | const Message_ProgressRange& theProgress = Message_ProgressRange()); |
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71 | |
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72 | //! Prepares and Returns a Binder for a Transient Result |
73 | //! Returns a Null Handle if <res> is itself Null |
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74 | Standard_EXPORT Handle(Transfer_SimpleBinderOfTransient) TransientResult (const Handle(Standard_Transient)& res) const; |
75 | |
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76 | //! Returns a Binder for No Result, i.e. a Null Handle |
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77 | Standard_EXPORT Handle(Transfer_Binder) NullResult() const; |
78 | |
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79 | //! If <mode> is True, commands an Actor to be set at the |
80 | //! end of the list of Actors (see SetNext) |
81 | //! If it is False (creation default), each add Actor is |
82 | //! set at the beginning of the list |
83 | //! This allows to define default Actors (which are Last) |
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84 | Standard_EXPORT void SetLast (const Standard_Boolean mode = Standard_True); |
85 | |
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86 | //! Returns the Last status (see SetLast). |
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87 | Standard_EXPORT Standard_Boolean IsLast() const; |
88 | |
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89 | //! Defines a Next Actor : it can then be asked to work if |
90 | //! <me> produces no result for a given type of Object. |
91 | //! If Next is already set and is not "Last", calls |
92 | //! SetNext on it. If Next defined and "Last", the new |
93 | //! actor is added before it in the list |
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94 | Standard_EXPORT void SetNext (const Handle(Transfer_ActorOfProcessForTransient)& next); |
95 | |
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96 | //! Returns the Actor defined as Next, or a Null Handle |
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97 | Standard_EXPORT Handle(Transfer_ActorOfProcessForTransient) Next() const; |
98 | |
99 | |
100 | |
101 | |
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102 | DEFINE_STANDARD_RTTI_INLINE(Transfer_ActorOfProcessForTransient,Standard_Transient) |
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103 | |
104 | protected: |
105 | |
106 | |
107 | |
108 | |
109 | private: |
110 | |
111 | |
112 | Handle(Transfer_ActorOfProcessForTransient) thenext; |
113 | Standard_Boolean thelast; |
114 | |
115 | |
116 | }; |
117 | |
118 | |
119 | |
120 | |
121 | |
122 | |
123 | |
124 | #endif // _Transfer_ActorOfProcessForTransient_HeaderFile |