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SoOneShot.h

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_SOONESHOT_H
00021 #define COIN_SOONESHOT_H
00022 
00023 #include <Inventor/engines/SoSubEngine.h>
00024 #include <Inventor/engines/SoEngineOutput.h>
00025 #include <Inventor/fields/SoSFTime.h>
00026 #include <Inventor/fields/SoSFBool.h>
00027 #include <Inventor/fields/SoSFTrigger.h>
00028 #include <Inventor/fields/SoSFBitMask.h>
00029 
00030 
00031 class COIN_DLL_API SoOneShot : public SoEngine {
00032   typedef SoEngine inherited;
00033 
00034   SO_ENGINE_HEADER(SoOneShot);
00035 
00036 public:
00037   static void initClass(void);
00038   SoOneShot(void);
00039 
00040   enum Flags {RETRIGGERABLE=1, HOLD_FINAL=2};
00041 
00042   SoSFTime timeIn;
00043   SoSFTime duration;
00044   SoSFTrigger trigger;
00045   SoSFBitMask flags;
00046   SoSFBool disable;
00047 
00048   SoEngineOutput timeOut;  // SoSFTime
00049   SoEngineOutput isActive; // SoSFBool
00050   SoEngineOutput ramp;     // SoSFFloat
00051 
00052 protected:
00053   ~SoOneShot();
00054 
00055 private:
00056   virtual void evaluate(void);
00057   virtual void inputChanged(SoField * which);
00058   virtual void writeInstance(SoOutput * out);
00059 
00060   SbTime holdduration;
00061   float holdramp;
00062   SbTime starttime;
00063   SbBool running;
00064 };
00065 
00066 #endif // !COIN_SOONESHOT_H

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