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32 
33 #ifndef COIN_SOELAPSEDTIME_H
34 #define COIN_SOELAPSEDTIME_H
35 
36 #include <Inventor/engines/SoSubEngine.h>
37 #include <Inventor/engines/SoEngineOutput.h>
38 #include <Inventor/fields/SoSFTime.h>
39 #include <Inventor/fields/SoSFFloat.h>
40 #include <Inventor/fields/SoSFBool.h>
41 #include <Inventor/fields/SoSFTrigger.h>
42 
43 
44 class COIN_DLL_API SoElapsedTime : public SoEngine {
45   typedef SoEngine inherited;
46 
47   SO_ENGINE_HEADER(SoElapsedTime);
48 
49 public:
50   static void initClass(void);
51   SoElapsedTime(void);
52 
53   SoSFTime timeIn;
54   SoSFFloat speed;
55   SoSFBool on;
56   SoSFBool pause;
57   SoSFTrigger reset;
58 
59   SoEngineOutput timeOut; // SoSFTime
60 
61 protected:
62   virtual ~SoElapsedTime(void);
63 
64   virtual void writeInstance(SoOutput * out);
65 
66 private:
67   virtual void evaluate(void);
68   virtual void inputChanged(SoField * which);
69 
70   SbTime pausetime, lasttime, currtime;
71   enum {RUNNING, STOPPED, PAUSED} status;
72 };
73 
74 #endif // !COIN_SOELAPSEDTIME_H
75