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#ifndef COIN_SOONESHOT_H
#define COIN_SOONESHOT_H

#include <Inventor/engines/SoSubEngine.h>
#include <Inventor/engines/SoEngineOutput.h>
#include <Inventor/fields/SoSFTime.h>
#include <Inventor/fields/SoSFBool.h>
#include <Inventor/fields/SoSFTrigger.h>
#include <Inventor/fields/SoSFBitMask.h>


class COIN_DLL_API SoOneShot : public SoEngine {
  typedef SoEngine inherited;

  SO_ENGINE_HEADER(SoOneShot);

public:
  static void initClass(void);
  SoOneShot(void);

  enum Flags {RETRIGGERABLE=1, HOLD_FINAL=2};

  SoSFTime timeIn;
  SoSFTime duration;
  SoSFTrigger trigger;
  SoSFBitMask flags;
  SoSFBool disable;

  SoEngineOutput timeOut;  // SoSFTime
  SoEngineOutput isActive; // SoSFBool
  SoEngineOutput ramp;     // SoSFFloat

protected:
  virtual ~SoOneShot(void);

private:
  virtual void evaluate(void);
  virtual void inputChanged(SoField * which);
  virtual void writeInstance(SoOutput * out);

  SbTime holdduration;
  float holdramp;
  SbTime starttime;
  SbBool running;
};

#endif // !COIN_SOONESHOT_H
