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# SoNodeEngine.h

    00001 /**************************************************************************\
    00002  *
    00003  *  This file is part of the Coin 3D visualization library.
    00004  *  Copyright (C) 1998-2003 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 General Public License
    00008  *  ("GPL") version 2 as published by the Free Software Foundation.
    00009  *  See the file LICENSE.GPL at the root directory of this source
    00010  *  distribution for additional information about the GNU GPL.
    00011  *
    00012  *  For using Coin with software that can not be combined with the GNU
    00013  *  GPL, and for taking advantage of the additional benefits of our
    00014  *  support services, please contact Systems in Motion about acquiring
    00015  *  a Coin Professional Edition License.
    00016  *
    00017  *  See <URL:http://www.coin3d.org> for  more information.
    00018  *
    00019  *  Systems in Motion, Teknobyen, Abels Gate 5, 7030 Trondheim, NORWAY.
    00020  *  <URL:http://www.sim.no>.
    00021  *
    00022 \**************************************************************************/
    00023
    00024 #ifndef COIN_SONODEENGINE_H
    00025 #define COIN_SONODEENGINE_H
    00026
    00027 #include <Inventor/nodes/SoNode.h>
    00028
    00029 class SoEngineOutput;
    00030 class SoEngineOutputList;
    00031 class SoEngineOutputData;
    00032
    00033 class COIN_DLL_API SoNodeEngine : public SoNode {
    00034   typedef SoNode inherited;
    00035
    00036 public:
    00037   static void initClass(void);
    00038   static SoType getClassTypeId(void);
    00039
    00040   void evaluateWrapper(void);
    00041
    00042   virtual int getOutputs(SoEngineOutputList & l) const;
    00043   SoEngineOutput * getOutput(const SbName & outputname) const;
    00044   SbBool getOutputName(const SoEngineOutput * output, SbName & outputname) const;
    00045   virtual const SoEngineOutputData * getOutputData(void) const = 0;
    00046
    00047   SbBool isNotifying(void) const;
    00048   virtual void notify(SoNotList * nl);
    00049
    00050   virtual void writeInstance(SoOutput * out);
    00051
    00052 protected:
    00053   SoNodeEngine(void);
    00054   virtual ~SoNodeEngine();
    00055   virtual void evaluate(void) = 0;
    00056
    00057   virtual SbBool readInstance(SoInput * in, unsigned short flags);
    00058   virtual void inputChanged(SoField * which);
    00059
    00060   static const SoFieldData ** getFieldDataPtr(void);
    00061   static const SoEngineOutputData ** getOutputDataPtr(void);
    00062
    00063   void writeOutputTypes(SoOutput * out);
    00064
    00065 private:
    00066   virtual void destroy(void); // overrides SoBase::destroy()
    00067
    00068   static SoType classTypeId;
    00069   unsigned int flags;
    00070 };
    00071
    00072 #endif // !COIN_SONODEENGINE_H