Anchor.h

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//    Copyright 2004-2019, SenseGraphics AB
//
//    This file is part of H3D API.
//
//    H3D API is free software; you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation; either version 2 of the License, or
//    (at your option) any later version.
//
//    H3D API 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 General Public License for more details.
//
//    You should have received a copy of the GNU General Public License
//    along with H3D API; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
//    A commercial license is also available. Please contact us at 
//    www.sensegraphics.com for more information.
//
//
//
#ifndef __ANCHOR_H__
#define __ANCHOR_H__
 
#include <H3D/X3DGroupingNode.h>
#include <H3D/X3DViewpointNode.h>
#include <H3D/MFString.h>
#include <H3D/PeriodicUpdate.h>
#include <H3D/Scene.h>
 
namespace H3D {
 
  class H3DAPI_API Anchor : public X3DGroupingNode {
  public:
 
    class H3DAPI_API GeometrySelected: public PeriodicUpdate < SFBool > {
    protected:
      // Check the url and call replaceScene if the url is correct.
      virtual void update();
 
    };
#ifdef __BORLANDC__
    friend class GeometrySelected;
#endif
 
    Anchor( Inst< AddChildren    > _addChildren    = 0,
            Inst< RemoveChildren > _removeChildren = 0,
            Inst< MFChild        > _children       = 0,
            Inst< SFString       > _description    = 0,
            Inst< SFNode         > _metadata       = 0,
            Inst< SFBound        > _bound          = 0,
            Inst< MFString       > _parameter      = 0,
            Inst< MFString       > _url            = 0,
            Inst< SFVec3f        > _bboxCenter     = 0,
            Inst< SFVec3f        > _bboxSize       = 0 );
 
    ~Anchor();
 
    static void replaceScene( AutoRef< Node > new_world,
                              const X3DViewpointNode *new_vp,
                              const Anchor *the_anchor );
 
    static void replaceSceneRoot( Scene * the_scene );
 
    static bool isAnchorInScene( const X3DGroupingNode *group_node,
                                 const Anchor *anchor_to_find );
 
    H3DUniquePtr< SFString >  description;
 
    H3DUniquePtr< MFString >  parameter;
 
    H3DUniquePtr< MFString >  url;
 
    static H3DNodeDatabase database;
  protected:
    // Internal variables used to control when to replace the world
    // ( or change viewpoint ).
    H3DUniquePtr< GeometrySelected > on_click;
    H3DUniquePtr< X3DPointingDeviceSensorNode > intern_pdsn;
    static AutoRef< Anchor > old_anchor;
    static string new_world_url;
    static string new_world_vp;
    static string new_world_base_url;
    string internal_base_url;
  };
}
 
#endif