gdcmFileMetaInformation.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 GDCMFILEMETAINFORMATION_H
#define GDCMFILEMETAINFORMATION_H
 
#include "gdcmPreamble.h"
#include "gdcmDataSet.h"
#include "gdcmDataElement.h"
#include "gdcmMediaStorage.h"
#include "gdcmTransferSyntax.h"
#include "gdcmExplicitDataElement.h"
 
namespace gdcm_ns
{
class GDCM_EXPORT FileMetaInformation : public DataSet
{
public:
  // FIXME: TransferSyntax::TS_END -> TransferSyntax::ImplicitDataElement
  FileMetaInformation();
  ~FileMetaInformation();
 
  friend std::ostream &operator<<(std::ostream &_os, const FileMetaInformation &_val);
 
  bool IsValid() const { return true; }
 
  TransferSyntax::NegociatedType GetMetaInformationTS() const { return MetaInformationTS; }
  void SetDataSetTransferSyntax(const TransferSyntax &ts);
  const TransferSyntax &GetDataSetTransferSyntax() const { return DataSetTS; }
  MediaStorage GetMediaStorage() const;
  std::string GetMediaStorageAsString() const;
 
  // FIXME: no virtual function means: duplicate code...
  void Insert(const DataElement& de) {
    if( de.GetTag().GetGroup() == 0x0002 )
      {
      InsertDataElement( de );
      }
    else
      {
      gdcmErrorMacro( "Cannot add element with group != 0x0002 in the file meta header: " << de );
      }
  }
  void Replace(const DataElement& de) {
    Remove(de.GetTag());
    Insert(de);
  }
 
  std::istream &Read(std::istream &is);
  std::istream &ReadCompat(std::istream &is);
 
  std::ostream &Write(std::ostream &os) const;
 
  void FillFromDataSet(DataSet const &ds);
 
  const Preamble &GetPreamble() const { return P; }
  Preamble &GetPreamble() { return P; }
  void SetPreamble(const Preamble &p) { P = p; }
 
  static void SetImplementationClassUID(const char * imp);
  static void AppendImplementationClassUID(const char * imp);
  static const char *GetImplementationClassUID();
  static void SetImplementationVersionName(const char * version);
  static const char *GetImplementationVersionName();
  static void SetSourceApplicationEntityTitle(const char * title);
  static const char *GetSourceApplicationEntityTitle();
 
  FileMetaInformation(FileMetaInformation const& fmi) = default;
  FileMetaInformation& operator=(const FileMetaInformation& fmi) = default;
  
    VL GetFullLength() const {
      return P.GetLength() + DataSet::GetLength<ExplicitDataElement>();
    }
 
protected:
  void ComputeDataSetTransferSyntax(); // FIXME
 
  template <typename TSwap>
  std::istream &ReadCompatInternal(std::istream &is);
 
  void Default();
  void ComputeDataSetMediaStorageSOPClass();
 
  TransferSyntax DataSetTS;
  TransferSyntax::NegociatedType MetaInformationTS;
  MediaStorage::MSType DataSetMS;
 
protected:
  static const char * GetFileMetaInformationVersion();
  static const char * GetGDCMImplementationClassUID();
  static const char * GetGDCMImplementationVersionName();
  static const char * GetGDCMSourceApplicationEntityTitle();
 
private:
  Preamble P;
 
//static stuff:
  static const char GDCM_FILE_META_INFORMATION_VERSION[];
  static const char GDCM_IMPLEMENTATION_CLASS_UID[];
  static const char GDCM_IMPLEMENTATION_VERSION_NAME[];
  static const char GDCM_SOURCE_APPLICATION_ENTITY_TITLE[];
  static std::string ImplementationClassUID;
  static std::string ImplementationVersionName;
  static std::string SourceApplicationEntityTitle;
};
//-----------------------------------------------------------------------------
inline std::ostream& operator<<(std::ostream &os, const FileMetaInformation &val)
{
  os << val.GetPreamble() << std::endl;
  val.Print( os );
  return os;
}
 
} // end namespace gdcm_ns
 
#endif //GDCMFILEMETAINFORMATION_H