SoLassoScreenDrawer.h

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**=======================================================================*/
/*=======================================================================
** Author      : Thibaut Andrieu (Jan 2011)
**=======================================================================*/
 
#if !defined _SO_LASSO_SCREEN_DRAWER_H_
#define _SO_LASSO_SCREEN_DRAWER_H_
 
#include <Inventor/drawers/SoPolyLineScreenDrawer.h>

class  SoLassoScreenDrawer : public SoPolyLineScreenDrawer 
{
  SO_NODE_HEADER( SoLassoScreenDrawer );
 
public:
  SoLassoScreenDrawer();

  virtual void reset();
 
private:

  static void initClass();

  static void exitClass();
 
SoEXTENDER_Documented private:

  virtual void onKeyDown( SoHandleEventAction* action );

  virtual void onMouseDown( SoHandleEventAction* action );

  virtual void onMouseDragging( SoHandleEventAction* action );

  virtual void onMouseUp( SoHandleEventAction* action );
 
private:

  virtual ~SoLassoScreenDrawer();
 
private:

  void finalizeLasso( SoHandleEventAction* action );
 
private:

  SbVec2s m_lastAddedPoint;
 
};
 
 
#endif // _SO_LASSO_SCREEN_DRAWER_H_