SoFocusElement.h

Go to the documentation of this file.

/*************************************************************************************
**
** 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_ELEMENT_H
#define SO_FOCUS_ELEMENT_H
 

 
#include "SoUtilsSystem.h"
 
#include <Inventor/elements/SoReplacedElement.h>
#include <Inventor/events/SoEvent.h>

enum FocusState {
  FS_FOCUS,
  FS_NO_FOCUS,
};

class SbFocusInfo
{
  public:
    FocusState state;

    SbVec2f normClickCoords;

    SbFocusInfo() {
      state = FS_NO_FOCUS;
      normClickCoords = SbVec2f(0,0);
    }

    SbFocusInfo(FocusState state, SbVec2f normClickCoords) {
      this->state = state;
      this->normClickCoords = normClickCoords;
    }

    int operator==(const SbFocusInfo &i) const {
      return ( (state == i.state) &&
               (normClickCoords == i.normClickCoords));
    }
};

class SOUTILS_EXPORT SoFocusElement : public SoReplacedElement {
 
    SO_ELEMENT_HEADER(SoFocusElement);
 
  public:
    void init(SoState *state) override;

    static const SbFocusInfo& get(SoState *state);

    SbFocusInfo getDefault();

    static void set(SoState *state, SoNode *node, const SbFocusInfo& focusInfo);
 
  SoINTERNAL public:
    static void     initClass();
 
  protected:
    SbFocusInfo _focusInfo;
};
 
#endif