SoTimeCounter.h Source File

00001 /**************************************************************************\
00002  *
00003  *  This file is part of the Coin 3D visualization library.
00004  *  Copyright (C) 1998-2002 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 Lesser General Public License
00008  *  version 2.1 as published by the Free Software Foundation. See the
00009  *  file LICENSE.LGPL at the root directory of the distribution for
00010  *  more details.
00011  *
00012  *  If you want to use Coin for applications not compatible with the
00013  *  LGPL, please contact SIM to acquire a Professional Edition license.
00014  *
00015  *  Systems in Motion, Prof Brochs gate 6, 7030 Trondheim, NORWAY
00016  *  http://www.sim.no support@sim.no Voice: +47 22114160 Fax: +47 22207097
00017  *
00018 \**************************************************************************/
00019 
00020 #ifndef COIN_SOTIMECOUNTER_H
00021 #define COIN_SOTIMECOUNTER_H
00022 
00023 #include <Inventor/engines/SoSubEngine.h>
00024 #include <Inventor/engines/SoEngineOutput.h>
00025 #include <Inventor/fields/SoSFTime.h>
00026 #include <Inventor/fields/SoSFFloat.h>
00027 #include <Inventor/fields/SoMFFloat.h>
00028 #include <Inventor/fields/SoSFBool.h>
00029 #include <Inventor/fields/SoSFTrigger.h>
00030 #include <Inventor/fields/SoSFShort.h>
00031 
00032 class COIN_DLL_API SoTimeCounter : public SoEngine {
00033   typedef SoEngine inherited;
00034   SO_ENGINE_HEADER(SoTimeCounter);
00035 
00036 public:
00037   SoSFTime timeIn;
00038   SoSFShort min;
00039   SoSFShort max;
00040   SoSFShort step;
00041   SoSFBool on;
00042   SoSFFloat frequency;
00043   SoMFFloat duty;
00044   SoSFShort reset;
00045   SoSFTrigger syncIn;
00046 
00047   SoEngineOutput output;  // SoSFShort
00048   SoEngineOutput syncOut; // SoSFTrigger
00049 
00050   SoTimeCounter();
00051   static void initClass();
00052 
00053 protected:
00054   virtual ~SoTimeCounter();
00055 
00056   virtual void inputChanged(SoField * which);
00057   virtual void writeInstance(SoOutput * out);
00058 
00059 private:
00060   virtual void evaluate(void);
00061   void calcStarttime(short value);
00062 
00063   SbBool ispaused;
00064   double pausetimeincycle;
00065   SbBool firstoutputenable;
00066   short outputvalue;
00067   int numsteps;
00068   int stepnum;
00069   double starttime;
00070   double cyclelen;
00071   short findOutputValue(double timeincycle) const;
00072   void calcDutySteps(void);
00073   void calcNumSteps(void);
00074 
00075   SbList <double> dutylimits;
00076 };
00077 
00078 #endif // !COIN_SOTIMECOUNTER_H