Inventor/touch/SoTouchManager.h

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/*=======================================================================
** Author      : ... (MMM yyyy)
** Modified by : ... (MMM yyyy)
**=======================================================================*/

#ifndef  _SO_TOUCH_MANAGER
#define  _SO_TOUCH_MANAGER

#include <Inventor/gestures/recognizers/SoGestureRecognizer.h>
#include <Inventor/touch/events/SoTouchEvent.h>
#include <Inventor/SoSceneManager.h>

class SoTouchEvent;
class SoScaleGestureRecognizer;
class SoRotateGestureRecognizer;
class SoDoubleTapGestureRecognizer;
class SoLongTapGestureRecognizer;

class  SoTouchManager 
{

public :

  SoTouchManager();

  virtual ~SoTouchManager();

  const SoTouchEvent* getEventById(unsigned long id) const; 

  const SoTouchEvent* getEventbyIndex(int index) const;

  const std::vector<unsigned long>& getAllFingerIds() const;

  int getFingerNumber() const;

  int getMaxSimultaneousFingers() const;

  void setMaxSimultaneousFingers(int fingers);

   void setThreshold(float t);

  float getThreshold() const; 

  bool isTouchScreenAvailable();

  void setTouchScreenAvailability(bool available);

  void removeRecognizer(SoGestureRecognizer* gesture);

  void addRecognizer(SoGestureRecognizer* recognizer);

  void addDefaultRecognizers();

  void removeDefaultRecognizers();

  const std::vector<SoGestureRecognizer*>& getRecognizerList() const;

  const std::vector<const SoEvent*>& getTouchDownEvent(unsigned long fingerId, const SbVec2f& fingerPos, const SbTime& time);

  const std::vector<const SoEvent*>& getTouchUpEvent(unsigned long fingerId, const SbVec2f& fingerPos, const SbTime& time);

  const std::vector<const SoEvent*>& getTouchMoveEvent(unsigned long fingerId, const SbVec2f& fingerPos, const SbTime& time);

#if 1             
  // The scene manager argument is useless. The process event should be now done by using the 
  // class SoRenderAreaCore.SoDEPRECATED
  SoTouchManager(SoSceneManager* sM);
SoDEPRECATED
  SoTouchEvent* updateAndProcessTouchEvent(unsigned long id, SoTouchEvent::State state, SbVec2f position, SbTime time);

#endif 
private :
  void init();

  //Replace event indexed by i with j
  void replaceEvent(int i, int j);

  const std::vector<const SoEvent*>& getTouchEvent(unsigned long fingerId, SoTouchEvent::State state, const SbVec2f& fingerPos, const SbTime& time);

  // Events table
  std::vector<SoTouchEvent> m_touchEvent;

  // Recognizers list
  std::vector<SoGestureRecognizer*> m_recognizerList;

  // default recognizers
  SoScaleGestureRecognizer* m_scaleRecognizer;
  SoRotateGestureRecognizer* m_rotateRecognizer;
  SoDoubleTapGestureRecognizer* m_doubleTapRecognizer;
  SoLongTapGestureRecognizer* m_longTapRecognizer;

  bool m_touchScreenAvailable;

  unsigned int m_supportedFingersNumber;
  float m_threshold;
  // Number of fingers touching the screen
  int m_fingerNumber;
  // ID of all fingers touching the screen
  std::vector<unsigned long> m_allFingers;
  // Notify if the last event state was UP
  bool m_fingerWasUp;
  // Index of the event
  int m_eventIndex;
  
  int m_maxSimultaneousFingers;

  std::vector<const SoEvent*> m_soeventlist;

  // Deprecated member: process event should be done by using SoRenderAreaCore
  // Kept only for compat as it is used by the deprecated method updateAndProcessTouchEvent
  SoSceneManager* m_sceneManager; 
};

#endif /* _SO_TOUCH_MANAGER */

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Open Inventor Toolkit reference manual, generated on 15 Mar 2023
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