+// gdcmDictEntry
+
+#include "gdcmDictSet.h"
+#include "gdcmUtil.h"
#include <fstream>
#include <stdlib.h> // For getenv
-#include "gdcm.h"
-#include "gdcmUtil.h"
#define PUB_DICT_NAME "DicomV3Dict"
-#define PUB_DICT_PATH "../Dicts/"
+#ifndef PUB_DICT_PATH
+# define PUB_DICT_PATH "../Dicts/"
+#endif
#define PUB_DICT_FILENAME "dicomV3.dic"
-gdcmDictSet::gdcmDictSet(void) {
- SetDictPath();
- if (! LoadDicomV3Dict())
- return;
-}
-
-void gdcmDictSet::SetDictPath(void) {
- const char* EnvPath = (char*)0;
- EnvPath = getenv("GDCM_DICT_PATH");
- if (EnvPath && (strlen(EnvPath) != 0)) {
- DictPath = EnvPath;
- if (DictPath[DictPath.length() -1] != '/' )
- DictPath += '/';
- dbg.Verbose(1, "gdcmDictSet::SetDictPath:",
+/**
+ * \ingroup gdcmDictSet
+ * \brief Consider all the entries of the public dicom dictionnary.
+ * Build all list of all the tag names of all those entries.
+ * \sa gdcmDictSet::GetPubDictTagNamesByCategory
+ * @return A list of all entries of the public dicom dictionnary.
+ */
+std::list<std::string> * gdcmDictSet::GetPubDictTagNames(void) {
+ std::list<std::string> * Result = new std::list<std::string>;
+ TagKeyHT entries = GetDefaultPubDict()->GetEntries();
+
+ for (TagKeyHT::iterator tag = entries.begin(); tag != entries.end(); ++tag){
+ Result->push_back( tag->second->GetName() );
+ }
+ return Result;
+}
+
+/**
+ * \ingroup gdcmDictSet
+ * \brief Consider all the entries of the public dicom dictionnary.
+ * Build an hashtable whose keys are the names of the groups
+ * (fourth field in each line of dictionary) and whose corresponding
+ * values are lists of all the dictionnary entries among that
+ * group. Note that apparently the Dicom standard doesn't explicitely
+ * define a name (as a string) for each group.
+ * A typical usage of this method would be to enable a dynamic
+ * configuration of a Dicom file browser: the admin/user can
+ * select in the interface which Dicom tags should be displayed.
+ * \warning Dicom *doesn't* define any name for any 'categorie'
+ * (the dictionnary fourth field was formerly NIH defined
+ * - and no longer he is-
+ * and will be removed when Dicom provides us a text file
+ * with the 'official' Dictionnary, that would be more friendly
+ * than asking us to perform a line by line check od thhe dictionnary
+ * at the beginning of each year to -try to- guess the changes)
+ * Therefore : please NEVER use that fourth field :-(
+ *
+ * @return An hashtable: whose keys are the names of the groups and whose
+ * corresponding values are lists of all the dictionnary entries
+ * among that group.
+ */
+std::map<std::string, std::list<std::string> > * gdcmDictSet::GetPubDictTagNamesByCategory(void) {
+ std::map<std::string, std::list<std::string> > * Result = new std::map<std::string, std::list<std::string> >;
+ TagKeyHT entries = GetDefaultPubDict()->GetEntries();
+
+ for (TagKeyHT::iterator tag = entries.begin(); tag != entries.end(); ++tag){
+ (*Result)[tag->second->GetFourth()].push_back(tag->second->GetName());
+ }
+ return Result;
+}
+
+/**
+ * \ingroup gdcmDictSet
+ * \brief Obtain from the GDCM_DICT_PATH environnement variable the
+ * path to directory containing the dictionnaries. When
+ * the environnement variable is absent the path is defaulted
+ * to "../Dicts/".
+ */
+std::string gdcmDictSet::BuildDictPath(void) {
+ std::string ResultPath;
+ const char* EnvPath = (char*)0;
+ EnvPath = getenv("GDCM_DICT_PATH");
+ if (EnvPath && (strlen(EnvPath) != 0)) {
+ ResultPath = EnvPath;
+ if (ResultPath[ResultPath.length() -1] != '/' )
+ ResultPath += '/';
+ dbg.Verbose(1, "gdcmDictSet::BuildDictPath:",
"Dictionary path set from environnement");
- } else
- DictPath = PUB_DICT_PATH;
+ } else
+ ResultPath = PUB_DICT_PATH;
+ return ResultPath;
+}
+
+/**
+ * \ingroup gdcmDictSet
+ * \brief The Dictionnary Set obtained with this constructor simply
+ * contains the Default Public dictionnary.
+ */
+gdcmDictSet::gdcmDictSet(void) {
+ DictPath = BuildDictPath();
+ std::string PubDictFile = DictPath + PUB_DICT_FILENAME;
+ Dicts[PUB_DICT_NAME] = new gdcmDict(PubDictFile);
}
-int gdcmDictSet::LoadDicomV3Dict(void) {
- if (dicts.count(PUB_DICT_NAME))
- return 1;
- return LoadDictFromFile(DictPath + PUB_DICT_FILENAME, PUB_DICT_NAME);
+gdcmDictSet::~gdcmDictSet() {
+ for (DictSetHT::iterator tag = Dicts.begin(); tag != Dicts.end(); ++tag) {
+ gdcmDict* EntryToDelete = tag->second;
+ if ( EntryToDelete )
+ delete EntryToDelete;
+ }
+ Dicts.clear();
}
-int gdcmDictSet::LoadDictFromFile(string FileName, DictKey Name) {
- gdcmDict *NewDict = new gdcmDict(FileName.c_str());
- dicts[Name] = NewDict;
- return 0; //FIXME if this is a dummy return make the method void
+/**
+ * \ingroup gdcmDictSet
+ * \brief Loads a dictionary from a specified file, and add it
+ * to already the existing ones contained in this gdcmDictSet.
+ * @param FileName Absolute or relative filename containing the
+ * dictionary to load.
+ * @param Name Symbolic name that be used as identifier of the newly
+ * created dictionary.
+ */
+void gdcmDictSet::LoadDictFromFile(std::string FileName, DictKey Name) {
+ gdcmDict *NewDict = new gdcmDict(FileName);
+ Dicts[Name] = NewDict;
}
-void gdcmDictSet::Print(ostream& os) {
- for (DictSetHT::iterator dict = dicts.begin(); dict != dicts.end(); ++dict){
- os << "Printing dictionary " << dict->first << " \n";
- dict->second->Print(os);
- }
+/**
+ * \ingroup gdcmDictSet
+ * \brief Print, in an informal fashion, the list of all the dictionaries
+ * contained is this gdcmDictSet, along with their respective content.
+ * @param os Output stream used for printing.
+ */
+void gdcmDictSet::Print(std::ostream& os) {
+ for (DictSetHT::iterator dict = Dicts.begin(); dict != Dicts.end(); ++dict){
+ os << "Printing dictionary " << dict->first << std::endl;
+ dict->second->Print(os);
+ }
}
+/**
+ * \ingroup gdcmDictSet
+ * \brief Retrieve the specified dictionary (when existing) from this
+ * gdcmDictSet.
+ * @param DictName The synbolic name of the searched dictionary.
+ * \result The retrieved dictionary.
+ */
gdcmDict * gdcmDictSet::GetDict(DictKey DictName) {
- DictSetHT::iterator dict = dicts.find(DictName);
- return dict->second;
+ DictSetHT::iterator dict = Dicts.find(DictName);
+ return dict->second;
}
-gdcmDict * gdcmDictSet::GetDefaultPublicDict() {
- return GetDict(PUB_DICT_NAME);
+/**
+ * \ingroup gdcmDictSet
+ * \brief Retrieve the default reference DICOM V3 public dictionary.
+ * \result The retrieved default dictionary.
+ */
+gdcmDict * gdcmDictSet::GetDefaultPubDict() {
+ return GetDict(PUB_DICT_NAME);
}