/// <summary>
/// Get an XML document representing the <see cref="StudyXml"/>.
/// </summary>
/// <remarks>
/// This method can be called multiple times as DICOM SOP Instances are added
/// to the <see cref="StudyXml"/>. Note that caching is done of the
/// XmlDocument to improve performance. If the collections in the InstanceStreams
/// are modified, the caching mechanism may cause the updates not to be contained
/// in the generated XmlDocument.
/// </remarks>
/// <returns></returns>
public StudyXmlMemento GetMemento(StudyXmlOutputSettings settings)
{
var memento = new StudyXmlMemento();
if (_doc == null)
{
_doc = new XmlDocument();
}
else
{
_doc.RemoveAll();
}
memento.Document = _doc;
if (settings.OptimizedMemento)
{
memento.RootNode = new StudyXmlMemento.StudyXmlNode
{
ElementName = "ClearCanvasStudyXml",
};
var studyElement = new StudyXmlMemento.StudyXmlNode
{
ElementName = "Study",
};
studyElement.AddAttribute("UID", _studyInstanceUid);
memento.RootNode.AddChild(studyElement);
foreach (SeriesXml series in this)
{
var seriesElement = series.GetMemento(memento, settings);
studyElement.AddChild(seriesElement);
}
}
else
{
XmlElement clearCanvas = _doc.CreateElement("ClearCanvasStudyXml");
XmlElement study = _doc.CreateElement("Study");
XmlAttribute studyInstanceUid = _doc.CreateAttribute("UID");
studyInstanceUid.Value = _studyInstanceUid;
study.Attributes.Append(studyInstanceUid);
foreach (SeriesXml series in this)
{
XmlElement seriesElement = series.GetMemento(_doc, settings);
study.AppendChild(seriesElement);
}
clearCanvas.AppendChild(study);
_doc.AppendChild(clearCanvas);
}
return(memento);
}
internal StudyXmlMemento.StudyXmlNode GetMemento(StudyXmlMemento theDocument, StudyXmlOutputSettings settings)
{
_dirty = false;
// Calc the base attributes
CalculateBaseCollectionForSeries();
var seriesElement = new StudyXmlMemento.StudyXmlNode {
ElementName = "Series"
};
seriesElement.AddAttribute("UID", _seriesInstanceUid);
// If there's only 1 total image in the series, leave an empty base instance
// and just have the entire image be stored.
if (_instanceList.Count > 1)
{
if (!string.IsNullOrEmpty(_seriesTagsStream.XmlFragment))
{
seriesElement.AddChild(new StudyXmlMemento.StudyXmlNode(_seriesTagsStream.XmlFragment));
}
else
{
XmlElement baseElement = theDocument.Document.CreateElement("BaseInstance");
XmlElement baseInstance = _seriesTagsStream.GetMemento(theDocument.Document, settings);
baseElement.AppendChild(baseInstance);
var baseNode = new StudyXmlMemento.StudyXmlNode(baseElement);
_seriesTagsStream.XmlFragment = baseNode.XmlElementFragment;
seriesElement.AddChild(baseNode);
}
}
else
{
_seriesTagsStream = null;
seriesElement.AddChild(new StudyXmlMemento.StudyXmlNode("<BaseInstance/>"));
}
foreach (InstanceXml instance in _instanceList.Values)
{
instance.SetBaseInstance(_seriesTagsStream);
if (!string.IsNullOrEmpty(instance.XmlFragment))
{
seriesElement.AddChild(new StudyXmlMemento.StudyXmlNode(instance.XmlFragment));
}
else
{
XmlElement instanceElement = instance.GetMemento(theDocument.Document, settings);
var node = new StudyXmlMemento.StudyXmlNode(instanceElement);
instance.XmlFragment = node.XmlElementFragment;
seriesElement.AddChild(node);
}
}
return(seriesElement);
}
