MeVisLab/Standard/Sources/Inventor/SoUtils/SoFocus.h

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// **InsertLicense** code
//----------------------------------------------------------------------------------

//----------------------------------------------------------------------------------

#ifndef __SoFocus_H
#define __SoFocus_H

// Local includes
#ifndef __SoUtilsSystem_H
#include "SoUtilsSystem.h"
#endif
#ifndef __SoFocusElement_H
#include "SoFocusElement.h"
#endif

// Wrap inventor includes into XVEnterScope and XVLeaveScope to avoid
// collisions between Open Inventor and Windows headers.

#include "XVEnterScope.h"
#include <Inventor/fields/SoSFVec2f.h>
#include <Inventor/sensors/SoNodeSensor.h>
#include "XVLeaveScope.h"


class SOUTILS_EXPORT SoFocus : public SoNode
{
  SO_NODE_HEADER(SoFocus);

public:
  SoFocus();

  static void       initClass();


  SoSFBool          active;

  SoSFBool          hasFocus;

  SoSFBool          supportWheelEvents;

  SoSFVec2f         normClickCoords;


  virtual void      handleEvent(SoHandleEventAction *action);

  void              setFocusState(FocusState state, bool updateField = true);
  
protected:
  virtual            ~SoFocus();

  SoNodeSensor      *_nodeSensor;

  static void       nodeChangedCB(void *data, SoSensor* sens);

  void              nodeChanged(SoNodeSensor* sensor);

  virtual void      GLRender(SoGLRenderAction *action);

private:

  SbFocusInfo       _focusInfo;

  static SoFocus*   _focusNode;

  void              _freeFocus();
  
};

#endif // __SoFocus_H