Default Method (original) (raw)
Summary
Restores the specified Context Group to the default values as stored in the internal table maintained by LEADTOOLS.
Syntax
- (BOOL)isDefaultContextGroup:(LTDicomContextGroup *)group; Parameters
contextGroup
DicomContextGroup object that specifies the Context Group to be restored. If this parameter is set to null, the method restores all the Context Groups in the Context Group Table.
Return Value
true, the specified Context Group was restored successfully. false, the method failed to allocate memory.
Example
using Leadtools;
using Leadtools.Dicom;
public void InsertContextGroup()
{
DicomDateTimeValue version = new DicomDateTimeValue();
version.Year = 2004;
version.Month = 3;
version.Day = 22;
version.Hours = 0;
version.Minutes = 0;
version.Seconds = 0;
version.Fractions = 0;
version.Offset = 0;
// Insert a (testing) Context Group
DicomContextGroup group = DicomContextGroupTable.Instance.Insert("CID XXXX", "New Context Group", true, version, DicomContextGroupTableInsertFlags.None);
if (group == null)
{
return;
}
// Fill the Context Group with some (testing) Coded Concepts
DicomContextGroupTable.Instance.InsertCodedConcept(group, "CSD1", null, "CV1", "CM1", DicomDateTimeValue.Empty, null, DicomContextGroupTableInsertFlags.None);
DicomContextGroupTable.Instance.InsertCodedConcept(group, "CSD2", null, "CV2", "CM2", DicomDateTimeValue.Empty, null, DicomContextGroupTableInsertFlags.None);
DicomContextGroupTable.Instance.InsertCodedConcept(group, "CSD3", null, "CV3", "CM3", DicomDateTimeValue.Empty, null, DicomContextGroupTableInsertFlags.None);
EnumCodedConcepts(group);
// Delete the Context Group
DicomContextGroupTable.Instance.Delete(group);
}
void DisplayCodedConcept(DicomCodedConcept concept)
{
DicomContextGroup group = DicomContextGroupTable.Instance.GetContextGroup(concept);
StringBuilder title = new StringBuilder();
StringBuilder msg = new StringBuilder();
title.AppendFormat("Coded Concept ({0} '{1}')", group.ContextIdentifier, group.ContextIdentifierValue);
msg.AppendFormat("Coding Scheme Designator: {0}{1}Coding Scheme Version: {2}{1}Code Value:{3}{1}Code Meaning: {4}",
concept.CodingSchemeDesignator,
Environment.NewLine,
concept.CodingSchemeVersion != null ? concept.CodingSchemeVersion : "N/A",
concept.CodeValue,
concept.CodeMeaning);
Console.WriteLine($"{title.ToString()}: {msg.ToString()}");
}
void EnumCodedConcepts(DicomContextGroup group)
{
// Enumerate the Coded Concepts in the Context Group (3 possible ways)
// One possible way to enumerate the Coded Concepts
DicomCodedConcept concept = DicomContextGroupTable.Instance.GetFirstCodedConcept(group);
while (concept != null)
{
DisplayCodedConcept(concept);
concept = DicomContextGroupTable.Instance.GetNextCodedConcept(concept);
}
// This code is commented out on purpose, it shows two other ways of
// enumerating the Coded Concepts
/*
// Another way to enumerate the Coded Concepts
for (int i = 0; i < DicomContextGroupTable.Instance.GetCodedConceptCount(group); i++)
{
concept = DicomContextGroupTable.Instance.FindCodedConceptByIndex(group, i);
DisplayCodedConcept(concept);
}
// A third way to enumerate the Coded Concepts
concept = DicomContextGroupTable.Instance.GetLastCodedConcept(group);
while (concept != null)
{
DisplayCodedConcept(concept);
concept = DicomContextGroupTable.Instance.GetPreviousCodedConcept(concept);
}
*/
}
void EnumContextGroups()
{
DicomContextGroupTable.Instance.Reset();
// Load all the Context Groups
DicomContextGroupTable.Instance.Load(null);
// Enumerate them (3 possible ways)
// One possible way to enumerate the Context Groups
DicomContextGroup group = DicomContextGroupTable.Instance.GetFirst();
while (group != null)
{
StringBuilder msg = new StringBuilder();
msg.AppendFormat("{0}{2}{1}{2}{2}Enumerate Coded Concepts?",
group.ContextIdentifier,
group.Name,
Environment.NewLine);
Console.WriteLine($"Context Group: {msg}");
EnumCodedConcepts(group);
group = DicomContextGroupTable.Instance.GetNext(group);
}
// This code is commented out on purpose, it shows two other ways of
// enumerating Context Groups
/*
// Another way to enumerate the Context Groups
for (int i = 0; i < DicomContextGroupTable.Instance.Count; i++)
{
group = DicomContextGroupTable.Instance.FindIndex(i);
msg.AppendFormat("{0}{2}{1}{2}{2}Enumerate Coded Concepts?",
group.ContextIdentifier,
group.Name,
Environment.NewLine);
DialogResult result = MessageBox.Show(msg.ToString(), "Context Group", MessageBoxButtons.YesNoCancel);
if(result == DialogResult.Yes)
{
EnumCodedConcepts(group);
}
else if (result == DialogResult.Cancel)
{
break;
}
}
// A third way to enumerate the Context Groups
group = DicomContextGroupTable.Instance.GetLast();
while (group != null)
{
msg.AppendFormat("{0}{2}{1}{2}{2}Enumerate Coded Concepts?",
group.ContextIdentifier,
group.Name,
Environment.NewLine);
DialogResult result = MessageBox.Show(msg.ToString(), "Context Group", MessageBoxButtons.YesNoCancel);
if (result == DialogResult.Yes)
{
EnumCodedConcepts(group);
}
else if (result == DialogResult.Cancel)
{
break;
}
group = group = DicomContextGroupTable.Instance.GetPrev(group);
}
*/
}
void ModifyContextGroup()
{
DicomContextGroupTable.Instance.Reset();
DicomContextGroupTable.Instance.Load(null);
DicomContextGroup group = null;
DicomCodedConcept concept = null;
// Look for a Context Group
group = DicomContextGroupTable.Instance.Find(DicomContextIdentifierType.CID6019);
if (group == null)
{
return;
}
// Look for a Coded Concept in the Context Group
concept = DicomContextGroupTable.Instance.FindCodedConcept(group, "SRT", "F-01781");
if (concept == null)
{
return;
}
// Set the Code Meaning of the Coded Concept (French translation)
if (DicomContextGroupTable.Instance.SetCodeMeaning(concept, "Situé à 1 heure") == false)
{
return;
}
DisplayCodedConcept(concept);
// Delete the Coded Concept
DicomContextGroupTable.Instance.DeleteCodedConcept(concept);
// Add a (testing) Coded Concept to the Context Group
concept = DicomContextGroupTable.Instance.InsertCodedConcept(group,
"CSD",
null,
"CV",
"CM",
DicomDateTimeValue.Empty,
null,
DicomContextGroupTableInsertFlags.None);
if (concept == null)
{
return;
}
DisplayCodedConcept(concept);
// Restore the Context Group (discard all the changes made to the Group)
DicomContextGroupTable.Instance.Default(group);
EnumCodedConcepts(group);
// Delete the Context Group
DicomContextGroupTable.Instance.Delete(group);
}