# SoOneShot.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_SOONESHOT_H
    00025 #define COIN_SOONESHOT_H
    00026
    00027 #include <Inventor/engines/SoSubEngine.h>
    00028 #include <Inventor/engines/SoEngineOutput.h>
    00029 #include <Inventor/fields/SoSFTime.h>
    00030 #include <Inventor/fields/SoSFBool.h>
    00031 #include <Inventor/fields/SoSFTrigger.h>
    00032 #include <Inventor/fields/SoSFBitMask.h>
    00033
    00034
    00035 class COIN_DLL_API SoOneShot : public SoEngine {
    00036   typedef SoEngine inherited;
    00037
    00038   SO_ENGINE_HEADER(SoOneShot);
    00039
    00040 public:
    00041   static void initClass(void);
    00042   SoOneShot(void);
    00043
    00044   enum Flags {RETRIGGERABLE=1, HOLD_FINAL=2};
    00045
    00046   SoSFTime timeIn;
    00047   SoSFTime duration;
    00048   SoSFTrigger trigger;
    00049   SoSFBitMask flags;
    00050   SoSFBool disable;
    00051
    00052   SoEngineOutput timeOut;  // SoSFTime
    00053   SoEngineOutput isActive; // SoSFBool
    00054   SoEngineOutput ramp;     // SoSFFloat
    00055
    00056 protected:
    00057   ~SoOneShot();
    00058
    00059 private:
    00060   virtual void evaluate(void);
    00061   virtual void inputChanged(SoField * which);
    00062   virtual void writeInstance(SoOutput * out);
    00063
    00064   SbTime holdduration;
    00065   float holdramp;
    00066   SbTime starttime;
    00067   SbBool running;
    00068 };
    00069
    00070 #endif // !COIN_SOONESHOT_H