SoPathSwitch.h

/*=======================================================================
 * Copyright 1991-1996, Silicon Graphics, Inc.
 * ALL RIGHTS RESERVED
 *
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 * in Technical Data and Computer Software clause at DFARS 252.227-7013 and/or
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 * Supplement.  Contractor/manufacturer is Silicon Graphics, Inc.,
 * 2011 N. Shoreline Blvd. Mountain View, CA 94039-7311.
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**=======================================================================*/
/*=======================================================================
** Author      : Paul S. Strauss (MMM yyyy)
** Modified by : Nick Thompson (MMM yyyy)
**=======================================================================*/
/*=======================================================================
 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.),            ***
 ***              AND IS DISTRIBUTED UNDER A LICENSE AGREEMENT.                     ***
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 ***                                                                                ***
 ***                        RESTRICTED RIGHTS LEGEND                                ***
 ***  USE, DUPLICATION, OR DISCLOSURE BY THE GOVERNMENT OF THE CONTENT OF THIS      ***
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 ***  CLAUSE  AT FAR 52.227-19  OR SUBPARAGRAPH  (C)(1)(II)  OF  THE RIGHTS IN      ***
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 ***                        BORDEAUX, FRANCE                                        ***
 ***                      ALL RIGHTS RESERVED                                       ***
**=======================================================================*/
/*=======================================================================
** Modified by : VSG (MMM YYYY)
**=======================================================================*/
 
 
#ifndef  _SO_PATH_SWITCH_
#define  _SO_PATH_SWITCH_
 
#include <Inventor/fields/SoSFPath.h>
#include <Inventor/nodes/SoGroup.h>
 
//
//  Class: SoPathSwitch
//
//  PathSwitch group node: traverses all children only if the path
//  traversed so far matches the one stored in the "path" field. A
//  successful match means that the N nodes in the stored path chain
//  are the same as the last N nodes in the current path, not
//  including the path switch node itself. A NULL path (the default)
//  means don't traverse the children.
//
 
class  SoPathSwitch : public SoGroup {
 
  SO_NODE_HEADER(SoPathSwitch);
 
 public:
  // Fields
  SoSFPath            path;
 
  SoPathSwitch();
 
  SoPathSwitch(int nChildren);
 
 private:
  // Implement actions
  virtual void        doAction(SoAction *action);
  virtual void        GLRender(SoGLRenderAction *action);
  virtual void        pick(SoPickAction *action);
  virtual void        getBoundingBox(SoGetBoundingBoxAction *action);
  virtual void        handleEvent(SoHandleEventAction *action);
  virtual void        getMatrix(SoGetMatrixAction *action);
  virtual void        search(SoSearchAction *action);
  virtual void        getPrimitiveCount(SoGetPrimitiveCountAction *action);
 
 private:
  static void         initClass();
  static void         exitClass();
 
 private:
  virtual ~SoPathSwitch();
 
 private:
 
  // Checks for match of path with current path
  SbBool              matchesPath(const SoPath *switchPath,
                                  const SoPath *currentPath) const;
};
 
#endif /* _SO_PATH_SWITCH_ */