DDCompactViewImpl.h

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#ifndef DETECTOR_DESCRIPTION_CORE_DD_COMPACT_VIEW_IMPL_H
# define DETECTOR_DESCRIPTION_CORE_DD_COMPACT_VIEW_IMPL_H

#include "DetectorDescription/Core/interface/DDTranslation.h"
#include "DetectorDescription/Core/interface/DDLogicalPart.h"
#include "DetectorDescription/Core/interface/DDPosData.h"
#include "DetectorDescription/Core/interface/DDTransform.h"
#include "DataFormats/Math/interface/Graph.h"
#include "DataFormats/Math/interface/GraphWalker.h"

class DDDivision;
class DDPartSelector;
struct DDPosData;

class DDCompactViewImpl 
{
public:
  
  using GraphNav = math::Graph<DDLogicalPart, DDPosData* >;
  using WalkerType = math::GraphWalker<DDLogicalPart, DDPosData* >;

  explicit DDCompactViewImpl();
  DDCompactViewImpl(const DDLogicalPart & rootnodedata);
  ~DDCompactViewImpl();
  
  //reassigns root with no check!!!
  void setRoot(const DDLogicalPart & root) { root_=root; }

  const DDLogicalPart & root() const { return root_; }
  
  DDLogicalPart & current() const;
  
  const GraphNav & graph() const { return graph_; }

  math::GraphWalker<DDLogicalPart,DDPosData*> walker() const; 
  
  double weight(const DDLogicalPart &) const;

  void position (const DDLogicalPart & self,
         const DDLogicalPart & parent,
         int copyno,
         const DDTranslation & trans,
         const DDRotation & rot,
         const DDDivision * div);

  void swap( DDCompactViewImpl& );  

protected:    
  // internal use ! (see comments in DDCompactView(bool)!)
  DDLogicalPart root_;
  GraphNav graph_;
};

#endif