gdcmSorter.h

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/*=========================================================================
 
  Program: GDCM (Grassroots DICOM). A DICOM library
 
  Copyright (c) 2006-2011 Mathieu Malaterre
  All rights reserved.
  See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.
 
     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.
 
=========================================================================*/
#ifndef GDCMSORTER_H
#define GDCMSORTER_H
 
#include "gdcmDirectory.h"
#include "gdcmTag.h"
 
#include <vector>
#include <string>
#include <map>
#include <set>
 
namespace gdcm
{
class DataSet;
 
class GDCM_EXPORT Sorter
{
  friend std::ostream& operator<<(std::ostream &_os, const Sorter &s);
public:
  Sorter();
  virtual ~Sorter();
 
  virtual bool Sort(std::vector<std::string> const & filenames);
 
  const std::vector<std::string> &GetFilenames() const { return Filenames; }
 
  void Print(std::ostream &os) const;
 
  bool AddSelect( Tag const &tag, const char *value );
 
  void SetTagsToRead( std::set<Tag> const & tags );
 
  typedef bool (*SortFunction)(DataSet const &, DataSet const &);
  void SetSortFunction( SortFunction f );
 
  virtual bool StableSort(std::vector<std::string> const & filenames);
 
protected:
  std::vector<std::string> Filenames;
  typedef std::map<Tag,std::string> SelectionMap;
  std::map<Tag,std::string> Selection;
  SortFunction SortFunc;
  std::set<Tag> TagsToRead;
};
//-----------------------------------------------------------------------------
inline std::ostream& operator<<(std::ostream &os, const Sorter &s)
{
  s.Print( os );
  return os;
}
 
 
} // end namespace gdcm
 
#endif //GDCMSORTER_H