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00001 /**************************************************************************\ 00002 * 00003 * This file is part of the Coin 3D visualization library. 00004 * Copyright (C) by Kongsberg Oil & Gas Technologies. 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 Kongsberg Oil & Gas Technologies 00015 * about acquiring a Coin Professional Edition License. 00016 * 00017 * See http://www.coin3d.org/ for more information. 00018 * 00019 * Kongsberg Oil & Gas Technologies, Bygdoy Alle 5, 0257 Oslo, NORWAY. 00020 * http://www.sim.no/ sales@sim.no coin-support@coin3d.org 00021 * 00022 \**************************************************************************/ 00023 00024 #ifndef COIN_SOSELECTONE_H 00025 #define COIN_SOSELECTONE_H 00026 00027 #include <Inventor/engines/SoSubEngine.h> 00028 #include <Inventor/fields/SoMField.h> 00029 #include <Inventor/fields/SoSFInt32.h> 00030 00031 class SoEngineOutput; 00032 00033 00034 class COIN_DLL_API SoSelectOne : public SoEngine { 00035 typedef SoEngine inherited; 00036 00037 SO_ENGINE_HEADER(SoSelectOne); 00038 00039 public: 00040 SoSFInt32 index; 00041 SoMField * input; 00042 00043 SoEngineOutput * output; // The SoSField-version of the SoMField-type. 00044 00045 SoSelectOne(SoType inputtype); 00046 static void initClass(void); 00047 00048 private: 00049 SoSelectOne(void); 00050 virtual ~SoSelectOne(void); 00051 00052 virtual void evaluate(void); 00053 00054 virtual SbBool readInstance(SoInput * in, unsigned short flags); 00055 virtual void writeInstance(SoOutput * out); 00056 00057 void initialize(const SoType inputfieldtype); 00058 00059 virtual void copyContents(const SoFieldContainer * from, 00060 SbBool copyconnections); 00061 00062 // SoSelectOne instances uses a dynamic set of inputs and outputs, 00063 // as they are not common for all instances of the class (like for 00064 // most of the other engines). 00065 SoFieldData * dynamicinput; 00066 SoEngineOutputData * dynamicoutput; 00067 00068 // Avoid a g++/egcs warning on the private default constructor. 00069 friend class dummy; 00070 }; 00071 00072 #endif // !COIN_SOSELECTONE_H
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