creaImageIOTreeNode.h

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/*
# ---------------------------------------------------------------------
#
# Copyright (c) CREATIS (Centre de Recherche en Acquisition et Traitement de l'Image 
#                        pour la Santé)
# Authors : Eduardo Davila, Frederic Cervenansky, Claire Mouton
# Previous Authors : Laurent Guigues, Jean-Pierre Roux
# CreaTools website : www.creatis.insa-lyon.fr/site/fr/creatools_accueil
#
#  This software is governed by the CeCILL-B license under French law and 
#  abiding by the rules of distribution of free software. You can  use, 
#  modify and/ or redistribute the software under the terms of the CeCILL-B 
#  license as circulated by CEA, CNRS and INRIA at the following URL 
#  http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html 
#  or in the file LICENSE.txt.
#
#  As a counterpart to the access to the source code and  rights to copy,
#  modify and redistribute granted by the license, users are provided only
#  with a limited warranty  and the software's author,  the holder of the
#  economic rights,  and the successive licensors  have only  limited
#  liability. 
#
#  The fact that you are presently reading this means that you have had
#  knowledge of the CeCILL-B license and that you accept its terms.
# ------------------------------------------------------------------------
*/


#ifndef __creaImageIOTreeNode_h_INCLUDED__
#define __creaImageIOTreeNode_h_INCLUDED__

#include <creaImageIOTreeLevelDescriptor.h>
#include <creaImageIOTreeComparators.h>
#include<boost/filesystem/operations.hpp>
#include <vector>
#include <map>


namespace creaImageIO
{

  namespace tree
  {
    //=====================================================================
    class Tree;
    //=====================================================================  
    
    //=====================================================================
    struct NodeData
    { 
      NodeData() {}
      virtual ~NodeData() {}
    };
    //=====================================================================


    //=====================================================================
    class Node
    {
    public:
      typedef std::map<std::string,std::string> AttributeMapType;


      Node(Node* parent);
      Node(Node* parent, const AttributeMapType& );
      virtual ~Node();

      void InitializeAttributeMap();
 
      const LevelDescriptor& GetLevelDescriptor() const;


      virtual Tree* GetTree() { return mParent->GetTree(); }
      virtual const Tree* GetTree() const { return mParent->GetTree(); }
      virtual int GetLevel() const { return mParent->GetLevel()+1; }

         
      Node* GetParent() const { return mParent; }

      unsigned int GetNumberOfChildren() const { return (int)mChildren.size(); }

      bool GetChildrenLoaded() const { return mChildrenLoaded; }

      void SetChildrenLoaded(bool l) { mChildrenLoaded = l; }

      typedef std::vector<Node*> ChildrenListType;
      ChildrenListType& GetChildrenList() { return mChildren; }
      const ChildrenListType& GetChildrenList() const { return mChildren; }

      int RemoveChildrenFromList(Node*);

        
      AttributeMapType& GetAttributeMap() { return mAttributeMap; }

      const AttributeMapType& GetAttributeMap() const { return mAttributeMap; }

      const std::string& GetAttribute(const std::string& k) const;
      
          // TODO : backslash OS uniformity
          const std::string& GetCleanAttribute(const std::string& k) const;

      void SetAttribute(const std::string& k, const std::string& v);

      void UnsafeSetAttribute(const std::string& k, const std::string& v)
      { mAttributeMap[k] = v; }
    
      const AttributeDescriptor& GetAttributeDescriptor(const std::string& k)const;
      
      bool Matches( const AttributeMapType& ) const;

      template<class T> T GetData() const 
      { if (mData!=0) return dynamic_cast<T>(mData); return 0; }

          void SetData(boost::shared_ptr<NodeData> d) {mData.reset(); mData = d; }//{ if (mData) delete mData; mData = d; }

      void SortChildren(const LexicographicalComparator&);

      virtual void Print() const;

      std::string GetLabel() const;
 

    private:
      Node* mParent;
      ChildrenListType mChildren;
      AttributeMapType mAttributeMap;
      boost::shared_ptr<NodeData> mData;
      bool mChildrenLoaded;
      // int mNumberOfChildren;

    }; // class Node
    //=====================================================================

  } // namespace tree


} // namespace creaImageIO



#endif // #ifndef __creaImageIOTreeNode_h_INCLUDED__