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# SoEngine.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_SOENGINE_H
    00025 #define COIN_SOENGINE_H
    00026
    00027 #include <Inventor/fields/SoFieldContainer.h>
    00028
    00029 class SoEngineList;
    00030 class SoEngineOutput;
    00031 class SoEngineOutputList;
    00032 class SoEngineOutputData;
    00033
    00034 class COIN_DLL_API SoEngine : public SoFieldContainer {
    00035   typedef SoFieldContainer inherited;
    00036
    00037 public:
    00038   static void initClass(void);
    00039   static void initClasses(void);
    00040   static SoType getClassTypeId(void);
    00041
    00042   void evaluateWrapper(void);
    00043
    00044   virtual int getOutputs(SoEngineOutputList & l) const;
    00045   SoEngineOutput * getOutput(const SbName & outputname) const;
    00046   SbBool getOutputName(const SoEngineOutput * output, SbName & outputname) const;
    00047   virtual const SoEngineOutputData * getOutputData(void) const = 0;
    00048   static SoEngine * getByName(const SbName & name);
    00049   static int getByName(const SbName & name, SoEngineList & el);
    00050
    00051   SbBool isNotifying(void) const;
    00052   virtual void notify(SoNotList * nl);
    00053
    00054   SoEngine * copy(void) const;
    00055   virtual SoFieldContainer * copyThroughConnection(void) const;
    00056   SbBool shouldCopy(void) const;
    00057
    00058   virtual void writeInstance(SoOutput * out);
    00059
    00060
    00061 protected:
    00062   SoEngine(void);
    00063   virtual ~SoEngine();
    00064   virtual void evaluate(void) = 0;
    00065
    00066   virtual SbBool readInstance(SoInput * in, unsigned short flags);
    00067   virtual void inputChanged(SoField * which);
    00068
    00069   static const SoFieldData ** getInputDataPtr(void);
    00070   static const SoEngineOutputData ** getOutputDataPtr(void);
    00071
    00072   void writeOutputTypes(SoOutput * out);
    00073
    00074 private:
    00075   virtual void destroy(void); // overrides SoBase::destroy()
    00076
    00077   static SoType classTypeId;
    00078   unsigned int flags;
    00079 };
    00080
    00081 #if !defined(COIN_INTERNAL)
    00082 #include <Inventor/engines/SoEngineOutput.h>
    00083 #endif // COIN_INTERNAL
    00084
    00085 #endif // !COIN_SOENGINE_H