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SoEngine.h

00001 /**************************************************************************\
00002  *
00003  *  This file is part of the Coin 3D visualization library.
00004  *  Copyright (C) 1998-2002 by Systems in Motion. All rights reserved.
00005  *
00006  *  This library is free software; you can redistribute it and/or
00007  *  modify it under the terms of the GNU Lesser General Public License
00008  *  version 2.1 as published by the Free Software Foundation. See the
00009  *  file LICENSE.LGPL at the root directory of the distribution for
00010  *  more details.
00011  *
00012  *  If you want to use Coin for applications not compatible with the
00013  *  LGPL, please contact SIM to acquire a Professional Edition license.
00014  *
00015  *  Systems in Motion, Prof Brochs gate 6, 7030 Trondheim, NORWAY
00016  *  http://www.sim.no support@sim.no Voice: +47 22114160 Fax: +47 22207097
00017  *
00018 \**************************************************************************/
00019 
00020 #ifndef COIN_SOENGINE_H
00021 #define COIN_SOENGINE_H
00022 
00023 #include <Inventor/fields/SoFieldContainer.h>
00024 
00025 class SoEngineList;
00026 class SoEngineOutput;
00027 class SoEngineOutputList;
00028 class SoEngineOutputData;
00029 
00030 class COIN_DLL_API SoEngine : public SoFieldContainer {
00031   typedef SoFieldContainer inherited;
00032 
00033 public:
00034   static void initClass(void);
00035   static void initClasses(void);
00036   static SoType getClassTypeId(void);
00037 
00038   void evaluateWrapper(void);
00039 
00040   virtual int getOutputs(SoEngineOutputList & l) const;
00041   SoEngineOutput * getOutput(const SbName & outputname) const;
00042   SbBool getOutputName(const SoEngineOutput * output, SbName & outputname) const;
00043   virtual const SoEngineOutputData * getOutputData(void) const = 0;
00044   static SoEngine * getByName(const SbName & name);
00045   static int getByName(const SbName & name, SoEngineList & el);
00046 
00047   SbBool isNotifying(void) const;
00048   virtual void notify(SoNotList * nl);
00049 
00050   SoEngine * copy(void) const;
00051   virtual SoFieldContainer * copyThroughConnection(void) const;
00052   SbBool shouldCopy(void) const;
00053 
00054   virtual void writeInstance(SoOutput * out);
00055 
00056 
00057 protected:
00058   SoEngine(void);
00059   virtual ~SoEngine();
00060   virtual void evaluate(void) = 0;
00061 
00062   virtual SbBool readInstance(SoInput * in, unsigned short flags);
00063   virtual void inputChanged(SoField * which);
00064 
00065   static const SoFieldData ** getInputDataPtr(void);
00066   static const SoEngineOutputData ** getOutputDataPtr(void);
00067 
00068   void writeOutputTypes(SoOutput * out);
00069 
00070 private:
00071   virtual void destroy(void); // overloads SoBase::destroy()
00072 
00073   static SoType classTypeId;
00074   unsigned int flags;
00075 };
00076 
00077 #if !defined(COIN_INTERNAL)
00078 #include <Inventor/engines/SoEngineOutput.h>
00079 #endif // COIN_INTERNAL
00080 
00081 #endif // !COIN_SOENGINE_H

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