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00001 /**************************************************************************\ 00002 * 00003 * This file is part of the Coin 3D visualization library. 00004 * Copyright (C) 1998-2007 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 http://www.coin3d.org/ for more information. 00018 * 00019 * Systems in Motion, Postboks 1283, Pirsenteret, 7462 Trondheim, NORWAY. 00020 * http://www.sim.no/ sales@sim.no coin-support@coin3d.org 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 00079 enum InternalEngineFlags { 00080 FLAG_ISNOTIFYING = (1 << 0), 00081 FLAG_ISDIRTY = (1 << 1) 00082 }; 00083 00084 unsigned int flags; 00085 00086 // needed for handling connections from SoEngineOutput 00087 friend class SoEngineOutput; 00088 void setDirty(void); 00089 }; 00090 00091 #if !defined(COIN_INTERNAL) 00092 #include <Inventor/engines/SoEngineOutput.h> 00093 #endif // COIN_INTERNAL 00094 00095 #endif // !COIN_SOENGINE_H
Copyright © 1998-2007 by Systems in Motion AS. All rights reserved.
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