Main Page Modules Class Hierarchy Alphabetical List Compound List File List Compound Members

# SoGate.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_SOGATE_H
    00025 #define COIN_SOGATE_H
    00026
    00027 #include <Inventor/engines/SoSubEngine.h>
    00028 #include <Inventor/fields/SoMField.h>
    00029 #include <Inventor/fields/SoSFBool.h>
    00030 #include <Inventor/fields/SoSFTrigger.h>
    00031
    00032 class SoEngineOutput;
    00033
    00034
    00035 class COIN_DLL_API SoGate : public SoEngine {
    00036   typedef SoEngine inherited;
    00037
    00038   SO_ENGINE_HEADER(SoGate);
    00039
    00040 public:
    00041   static void initClass(void);
    00042   SoGate(SoType type);
    00043
    00044   SoSFBool enable;
    00045   SoSFTrigger trigger;
    00046   SoMField * input;
    00047
    00048   SoEngineOutput * output;
    00049
    00050 protected:
    00051   virtual void inputChanged(SoField * which);
    00052
    00053 private:
    00054   SoGate(void);
    00055   ~SoGate();
    00056
    00057   virtual void evaluate(void);
    00058
    00059   virtual SbBool readInstance(SoInput * in, unsigned short flags);
    00060   virtual void writeInstance(SoOutput * out);
    00061
    00062   void initialize(const SoType inputfieldtype);
    00063
    00064   virtual void copyContents(const SoFieldContainer * from,
    00065                             SbBool copyconnections);
    00066
    00067   // SoGate instances uses a dynamic set of inputs and outputs, as
    00068   // they are not common for all instances of the class (like for most
    00069   // of the other engines).
    00070   SoFieldData * dynamicinput;
    00071   SoEngineOutputData * dynamicoutput;
    00072
    00073   // Avoid a g++/egcs warning due to the private default constructor.
    00074   friend class dummy;
    00075 };
    00076
    00077 #endif // !COIN_SOGATE_H