SoTouchEvent.h

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/*=======================================================================
** Modified by : VSG (MMM YYYY)
**=======================================================================*/
 
#ifndef  _SO_TOUCH_EVENT_
#define  _SO_TOUCH_EVENT_
 
#include <Inventor/SbBasic.h>
#include <Inventor/events/SoSubEvent.h>
#include <Inventor/SbTime.h>
 
class SoTouchManager;
 
class  SoTouchEvent : public SoEvent 
{
 
  SO_EVENT_HEADER();
    
public:
 
  enum State {
    UNKNOWN,
    UP, 
    DOWN,
    MOVE
  };
 
  SoTouchEvent();
 
  #ifndef HIDDEN_FROM_DOC
  virtual ~SoTouchEvent();
  #endif // HIDDEN_FROM_DOC
 
  State getState() const;
 
  unsigned long getFingerId() const;
    
  SbTime getElapsedTimeSincePreviousEvent() const;
    
  SbTime getFirstContactTime() const;
 
  SbTime getElapsedTimeUntilPreviousEvent() const;
 
  SbTime getPreviousEventTime() const;
 
  SbVec2f getSpeed() const;
    
  SbVec2f getPreviousPosition() const;
    
  SbVec2f getDisplacement() const;
 
  SbVec2f getAcceleration() const;
 
  SbVec2f getPreviousSpeed() const;
 
  SoTouchManager* getTouchManager() const;
 
  void setTouchManager(SoTouchManager* manager);
 
  SbVec2f getFirstPosition() const;
 
  void setState(SoTouchEvent::State b);
 
  void setFingerId(unsigned long idFinger);
 
  virtual void setPosition(const SbVec2f &p);
  virtual void setPosition(const SbVec2s &p);
 
  virtual void setTime(SbTime t);
 
  void setPreviousSpeed();
 
  void setFirstPosition(SbVec2f);
 
private:
  static void initClass();
  static void exitClass();
  
private:
  // Id of the finger launching this event
  unsigned long m_fingerId; 
  // Up, Down, Move or Unknown.
  State m_state; 
  // The difference between the event position and the previous event position.
  SbVec2f m_displacement;
  // The time derivative of instant displacement 
  SbVec2f m_previousSpeed;
  // The time elapsed since the first date contact and the previous event
  SbTime m_elapsedTime;
  // Date of first contact in seconds
  SbTime m_firstContactTime; 
  // First position
  SbVec2f m_firstPosition;
 
  SoTouchManager* m_touchManager;
};
 
#endif /* _SO_TOUCH_EVENT_ */