# SoTimeCounter.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_SOTIMECOUNTER_H
    00025 #define COIN_SOTIMECOUNTER_H
    00026
    00027 #include <Inventor/engines/SoSubEngine.h>
    00028 #include <Inventor/engines/SoEngineOutput.h>
    00029 #include <Inventor/fields/SoSFTime.h>
    00030 #include <Inventor/fields/SoSFFloat.h>
    00031 #include <Inventor/fields/SoMFFloat.h>
    00032 #include <Inventor/fields/SoSFBool.h>
    00033 #include <Inventor/fields/SoSFTrigger.h>
    00034 #include <Inventor/fields/SoSFShort.h>
    00035
    00036 class COIN_DLL_API SoTimeCounter : public SoEngine {
    00037   typedef SoEngine inherited;
    00038   SO_ENGINE_HEADER(SoTimeCounter);
    00039
    00040 public:
    00041   SoSFTime timeIn;
    00042   SoSFShort min;
    00043   SoSFShort max;
    00044   SoSFShort step;
    00045   SoSFBool on;
    00046   SoSFFloat frequency;
    00047   SoMFFloat duty;
    00048   SoSFShort reset;
    00049   SoSFTrigger syncIn;
    00050
    00051   SoEngineOutput output;  // SoSFShort
    00052   SoEngineOutput syncOut; // SoSFTrigger
    00053
    00054   SoTimeCounter();
    00055   static void initClass();
    00056
    00057 protected:
    00058   virtual ~SoTimeCounter();
    00059
    00060   virtual void inputChanged(SoField * which);
    00061   virtual void writeInstance(SoOutput * out);
    00062
    00063 private:
    00064   virtual void evaluate(void);
    00065   void calcStarttime(short value);
    00066
    00067   SbBool ispaused;
    00068   double pausetimeincycle;
    00069   SbBool firstoutputenable;
    00070   short outputvalue;
    00071   int numsteps;
    00072   int stepnum;
    00073   double starttime;
    00074   double cyclelen;
    00075   short findOutputValue(double timeincycle) const;
    00076   void calcDutySteps(void);
    00077   void calcNumSteps(void);
    00078
    00079   SbList <double> dutylimits;
    00080 };
    00081
    00082 #endif // !COIN_SOTIMECOUNTER_H