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1 | // Created on: 1997-02-05 |
| 2 | // Created by: Alexander BRIVIN |
| 3 | // Copyright (c) 1997-1999 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 _Vrml_Instancing_HeaderFile |
| 18 | #define _Vrml_Instancing_HeaderFile |
| 19 | |
| 20 | #include <Standard.hxx> |
| 21 | #include <Standard_DefineAlloc.hxx> |
| 22 | #include <Standard_Handle.hxx> |
| 23 | |
| 24 | #include <TCollection_AsciiString.hxx> |
| 25 | #include <Standard_OStream.hxx> |
| 26 | class TCollection_AsciiString; |
| 27 | |
| 28 | |
| 29 | //! defines "instancing" - using the same instance of a node |
| 30 | //! multiple times. |
| 31 | //! It is accomplished by using the "DEF" and "USE" keywords. |
| 32 | //! The DEF keyword both defines a named node, and creates a single |
| 33 | //! instance of it. |
| 34 | //! The USE keyword indicates that the most recently defined instance |
| 35 | //! should be used again. |
| 36 | //! If several nades were given the same name, then the last DEF |
| 37 | //! encountered during parsing "wins". |
| 38 | //! DEF/USE is limited to a single file. |
| 39 | class Vrml_Instancing |
| 40 | { |
| 41 | public: |
| 42 | |
| 43 | DEFINE_STANDARD_ALLOC |
| 44 | |
| 45 | |
| 46 | //! Adds "DEF <myName>" in anOStream (VRML file). |
| 47 | Standard_EXPORT Vrml_Instancing(const TCollection_AsciiString& aString); |
| 48 | |
| 49 | //! Adds "USE <myName>" in anOStream (VRML file). |
| 50 | Standard_EXPORT Standard_OStream& DEF (Standard_OStream& anOStream) const; |
| 51 | |
| 52 | Standard_EXPORT Standard_OStream& USE (Standard_OStream& anOStream) const; |
| 53 | |
| 54 | |
| 55 | |
| 56 | |
| 57 | protected: |
| 58 | |
| 59 | |
| 60 | |
| 61 | |
| 62 | |
| 63 | private: |
| 64 | |
| 65 | |
| 66 | |
| 67 | TCollection_AsciiString myName; |
| 68 | |
| 69 | |
| 70 | }; |
| 71 | |
| 72 | |
| 73 | |
| 74 | |
| 75 | |
| 76 | |
| 77 | |
| 78 | #endif // _Vrml_Instancing_HeaderFile |
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