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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 GDCMSTRINGFILTER_H
#define GDCMSTRINGFILTER_H
#include "gdcmDataElement.h"
#include "gdcmDicts.h"
#include "gdcmFile.h"
namespace gdcm
{
/**
* \brief StringFilter
* \details StringFilter is the class that make gdcm2.x looks more like gdcm1 and transform the binary blob
* contained in a DataElement into a string, typically this is a nice feature to have for wrapped language
*/
class GDCM_EXPORT StringFilter
{
public:
StringFilter();
~StringFilter();
///
void UseDictAlways(bool) {}
/// Allow user to pass in there own dicts
void SetDicts(const Dicts &dicts);
/// Convert to string the ByteValue contained in a DataElement. The
/// DataElement must be coming from the actual DataSet associated with File
/// (see SetFile).
std::string ToString(const DataElement& de) const;
/// Directly from a Tag:
std::string ToString(const Tag& t) const;
std::string ToString(const PrivateTag& t) const;
/// Convert to string the ByteValue contained in a DataElement
/// the returned elements are:
/// pair.first : the name as found in the dictionary of DataElement
/// pari.second : the value encoded into a string (US,UL...) are properly converted
std::pair<std::string, std::string> ToStringPair(const DataElement& de) const;
/// Directly from a Tag:
std::pair<std::string, std::string> ToStringPair(const Tag& t) const;
/// Convert to string the char array defined by the pair (value,len)
std::string FromString(const Tag&t, const char * value, size_t len);
/// Set/Get File
void SetFile(const File& f) { F = f; }
File &GetFile() { return *F; }
const File &GetFile() const { return *F; }
/// Execute the XPATH query to find a value (as string)
/// return false when attribute is not found (or an error in the XPATH query)
/// You need to make sure that your XPATH query is syntactically correct
bool ExecuteQuery(std::string const &query, std::string & value) const;
protected:
std::pair<std::string, std::string> ToStringPair(const Tag& t, DataSet const &ds) const;
bool ExecuteQuery(std::string const &query, DataSet const &ds, std::string & value) const;
private:
std::pair<std::string, std::string> ToStringPairInternal(const DataElement& de, DataSet const &ds) const;
SmartPointer<File> F;
};
} // end namespace gdcm
#endif //GDCMSTRINGFILTER_H
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