ViewpointGroup.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 __VIEWPOINTGROUP_H__
#define __VIEWPOINTGROUP_H__
 
#include <H3D/X3DViewpointNode.h>
#include <H3D/MFNode.h>
 
namespace H3D {
  class H3DAPI_API ViewpointGroup : public X3DChildNode {
  public:
 
    class H3DAPI_API MFChild: public MFNode {
      virtual void onAdd( Node * n );
    };
 
    ViewpointGroup( Inst< SFVec3f  >  _center           = 0,
                    Inst< MFChild  >  _children         = 0,
                    Inst< SFString >  _description      = 0,
                    Inst< SFBool   >  _displayed        = 0,
                    Inst< SFNode   >  _metadata         = 0,
                    Inst< SFBool   >  _retainUserOffsets = 0,
                    Inst< SFVec3f  >  _size             = 0 );
 
    virtual ~ViewpointGroup() {
      viewpoint_groups.remove( this );
      viewpoint_groups_changed = true;
    }
 
    virtual bool windowFromfieldOfView( H3DFloat /*width*/, H3DFloat /*height*/,
                                        H3DFloat /*clip_near*/,
                                        H3DFloat &/*top*/, H3DFloat &/*bottom*/,
                                        H3DFloat &/*right*/, H3DFloat &/*left*/ ) {
      return false;
    }
 
    virtual void traverseSG( TraverseInfo &ti );
 
    bool containsViewpoint( X3DViewpointNode *vp ) const;
    
    list< Node * > getChildrenAsList();
 
    inline bool isTopLevel() {
      return is_top_level;
    }
 
    inline bool inSceneGraph() {
      return in_scene_graph;
    }
 
    typedef list< ViewpointGroup * > ViewpointGroupList;
 
    static const ViewpointGroupList &getAllViewpointGroups() {
      return viewpoint_groups;
    }
 
    static bool viewpointGroupsChanged() {
      bool status = viewpoint_groups_changed;
      viewpoint_groups_changed = false;
      return status;
    }
 
    H3DUniquePtr< SFVec3f > center;
 
    H3DUniquePtr< MFChild > children;
 
    H3DUniquePtr< SFString > description;
 
    H3DUniquePtr< SFBool > displayed;
 
    H3DUniquePtr< SFBool > retainUserOffsets;
 
    H3DUniquePtr< SFVec3f > size;
 
    bool display_in_list;
    
    static H3DNodeDatabase database;
 
  protected:
    //static NodeVector groups;
    static ViewpointGroupList viewpoint_groups;
 
    //on any change of is_top_level or in_scene_graph of any node in viewpoint_groups
    static bool viewpoint_groups_changed;
 
    Vec3f last_position;
 
    bool is_top_level;
 
    bool in_scene_graph;
  };
}
 
#endif