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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
{
/**
* \brief Class to represent a File Meta Information
*
* \details FileMetaInformation is a Explicit Structured Set. Whenever the
* file contains an ImplicitDataElement DataSet, a conversion will take place.
*
* Definition:
* The File Meta Information includes identifying information on the
* encapsulated Data Set. This header consists of a 128 byte File Preamble,
* followed by a 4 byte DICOM prefix, followed by the File Meta Elements shown
* in Table 7.1-1. This header shall be present in every DICOM file.
*
* \see Writer Reader
*/
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);
}
/// Read
std::istream &Read(std::istream &is);
std::istream &ReadCompat(std::istream &is);
/// Write
std::ostream &Write(std::ostream &os) const;
/// Construct a FileMetaInformation from an already existing DataSet:
void FillFromDataSet(DataSet const &ds);
/// Get Preamble
const Preamble &GetPreamble() const { return P; }
Preamble &GetPreamble() { return P; }
void SetPreamble(const Preamble &p) { P = p; }
/// Override the GDCM default values:
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):DataSet(fmi)
{
DataSetTS = fmi.DataSetTS;
MetaInformationTS = fmi.MetaInformationTS;
DataSetMS = fmi.DataSetMS;
}
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
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