SoGetBoundingBoxAction.h

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/*
 *
 *  Copyright (C) 2000 Silicon Graphics, Inc.  All Rights Reserved. 
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  Further, this software is distributed without any warranty that it is
 *  free of the rightful claim of any third person regarding infringement
 *  or the like.  Any license provided herein, whether implied or
 *  otherwise, applies only to this software file.  Patent licenses, if
 *  any, provided herein do not apply to combinations of this program with
 *  other software, or any other product whatsoever.
 * 
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
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/*
 * Copyright (C) 1990,91   Silicon Graphics, Inc.
 *
 _______________________________________________________________________
 ______________  S I L I C O N   G R A P H I C S   I N C .  ____________
 |
 |   $Revision: 1.1.1.1 $
 |
 |   Description:
 |      Defines the SoGetBoundingBoxAction class
 |
 |   Author(s)          : Paul S. Strauss
 |
 ______________  S I L I C O N   G R A P H I C S   I N C .  ____________
 _______________________________________________________________________
 */
 
#ifndef  _SO_GET_BOUNDING_BOX_ACTION_
#define  _SO_GET_BOUNDING_BOX_ACTION_
 
#include <Inventor/system/SbSystem.h>
#include <Inventor/SbBox.h>
#include <Inventor/SbViewportRegion.h>
#include <Inventor/actions/SoSubAction.h>
 
 
 
 
class INVENTOR_API SoGetBoundingBoxAction : public SoAction {
 
    SO_ACTION_HEADER(SoGetBoundingBoxAction);
 
  public:
 
    SoGetBoundingBoxAction(const SbViewportRegion &viewportRegion);
 
    virtual ~SoGetBoundingBoxAction();
 
    void                setViewportRegion(const SbViewportRegion &newRegion);
 
    const SbViewportRegion &getViewportRegion() const   { return vpRegion; }
 
    SbBox3f             getBoundingBox() const  { return box.project(); }
 
    SbXfBox3f &         getXfBoundingBox()      { return box; }
 
    const SbVec3f &     getCenter() const;
 
    void                setInCameraSpace(bool flag)   { cameraSpace = flag; }
 
    bool                isInCameraSpace() const         { return cameraSpace; }
 
    enum ResetType {
        TRANSFORM      = 0x01,      
        BBOX           = 0x02,      
        ALL            = 0x03       
    };
    void                setResetPath(const SoPath *path,
                                     bool resetBefore = TRUE,
                                     ResetType what = ALL);
    const SoPath *      getResetPath() const    { return resetPath; }
    bool                isResetPath() const     { return( resetPath != NULL); }
    bool                isResetBefore() const   { return resetBefore; }
    SoGetBoundingBoxAction::ResetType getWhatReset() const { return resetWhat;}
 
  SoEXTENDER public:
 
    void                checkResetBefore();
    void                checkResetAfter();
 
    void                extendBy(const SbBox3f &box);
    void                extendBy(const SbXfBox3f &box);
 
    void                setCenter(const SbVec3f &center,
                                  bool transformCenter);
    bool                isCenterSet() const;
    void                resetCenter();
 
  SoINTERNAL public:
    static void         initClass();
 
  protected:
    virtual void        beginTraversal(SoNode *node);
 
  private:
    SbXfBox3f           box;            
    SbVec3f             center;         
    bool                cameraSpace;    
    const SoPath        *resetPath;     
    bool                resetBefore;    
    ResetType           resetWhat;      
    SbViewportRegion    vpRegion;       
    bool                centerSet;      
 
    void                checkReset(bool resetBefore);
};
 
#endif /* _SO_GET_BOUNDING_BOX_ACTION_ */