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SoProto.h
00001 #ifndef COIN_SOPROTO_H
00002 #define COIN_SOPROTO_H
00003 
00004 /**************************************************************************\
00005  *
00006  *  This file is part of the Coin 3D visualization library.
00007  *  Copyright (C) by Kongsberg Oil & Gas Technologies.
00008  *
00009  *  This library is free software; you can redistribute it and/or
00010  *  modify it under the terms of the GNU General Public License
00011  *  ("GPL") version 2 as published by the Free Software Foundation.
00012  *  See the file LICENSE.GPL at the root directory of this source
00013  *  distribution for additional information about the GNU GPL.
00014  *
00015  *  For using Coin with software that can not be combined with the GNU
00016  *  GPL, and for taking advantage of the additional benefits of our
00017  *  support services, please contact Kongsberg Oil & Gas Technologies
00018  *  about acquiring a Coin Professional Edition License.
00019  *
00020  *  See http://www.coin3d.org/ for more information.
00021  *
00022  *  Kongsberg Oil & Gas Technologies, Bygdoy Alle 5, 0257 Oslo, NORWAY.
00023  *  http://www.sim.no/  sales@sim.no  coin-support@coin3d.org
00024  *
00025 \**************************************************************************/
00026 
00027 #include <Inventor/nodes/SoNode.h>
00028 
00029 class SoProto;
00030 class SoInput;
00031 class SoProtoInstance;
00032 class SoProtoP;
00033 
00034 typedef SoProto * SoFetchExternProtoCB(SoInput * in,
00035                                        const SbString * urls,
00036                                        const int numurls,
00037                                        void * closure);
00038 
00039 // We need to inherit SoNode to be able to insert the PROTO definition
00040 // into the scene graph.
00041 class COIN_DLL_API SoProto : public SoNode {
00042 public:
00043   SoProto(const SbBool externproto = FALSE);
00044 
00045   static void setFetchExternProtoCallback(SoFetchExternProtoCB * cb,
00046                                           void * closure);
00047 
00048   virtual SoType getTypeId(void) const;
00049   static SoType getClassTypeId(void);
00050 
00051   static SoProto * findProto(const SbName & name);
00052   static void initClass(void);
00053 
00054   SoProtoInstance * createProtoInstance(void);
00055   void addISReference(SoNode * container,
00056                       const SbName & fieldname,
00057                       const SbName & interfacename);
00058   SbName findISReference(const SoFieldContainer * container,
00059                          const SbName & fieldname);
00060 
00061   void addReference(const SbName & name, SoBase * base);
00062   void removeReference(const SbName & name);
00063   SoBase * findReference(const SbName & name) const;
00064 
00065   void addRoute(const SbName & fromnode, const SbName & fromfield,
00066                 const SbName & tonode, const SbName & tofield);
00067 
00068   SbName getProtoName(void) const;
00069 
00070   virtual SbBool readInstance(SoInput * input, unsigned short flags);
00071   virtual void write(SoWriteAction * action);
00072 
00073 protected:
00074 
00075   virtual ~SoProto();
00076   virtual void destroy(void);
00077 
00078 private:
00079   SbBool writeInterface(SoOutput * out);
00080   SbBool writeDefinition(SoWriteAction * action);
00081 
00082   SbBool readInterface(SoInput * in);
00083   SbBool readDefinition(SoInput * in);
00084 
00085   SbBool writeURLs(SoOutput * out);
00086   SoProtoP * pimpl;
00087   friend class SoProtoP;
00088 
00089   SbBool setupExtern(SoInput * in, SoProto * externproto);
00090 
00091   SoNode * createInstanceRoot(SoProtoInstance * inst) const;
00092   void connectISRefs(SoProtoInstance * inst, SoNode * src, SoNode * dst) const;
00093 };
00094 
00095 #endif // !COIN_SOPROTO_H

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