SoFocus.h

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/*************************************************************************************
**
** Copyright 2007, MeVis Medical Solutions AG
**
** The user may use this file in accordance with the license agreement provided with
** the Software or, alternatively, in accordance with the terms contained in a
** written agreement between the user and MeVis Medical Solutions AG.
**
** For further information use the contact form at https://www.mevislab.de/contact
**
**************************************************************************************/
 
#ifndef SO_FOCUS_H
#define SO_FOCUS_H
 

 
#include "SoUtilsSystem.h"
#include "SoFocusElement.h"
 
#include <Inventor/fields/SoSFVec2f.h>
#include <Inventor/sensors/SoFieldSensor.h>

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

  static void       initClass();


  SoSFBool          active;

  SoSFBool          hasFocus;

  SoSFBool          supportWheelEvents;

  SoSFVec2f         normClickCoords;


  void      handleEvent(SoHandleEventAction *action) override;

  void              setFocusState(FocusState state, bool updateField = true);
 
protected:
             ~SoFocus() override;
 
  void              hasFocusChanged(SoField*);
  void              activeChanged(SoField*);

  void      GLRender(SoGLRenderAction *action) override;
 
private:

  SbFocusInfo       _focusInfo;

  static SoFocus*   _focusNode;

  void              _freeFocus();
 
};
 
#endif // __SoFocus_H