internal void CalculateBaseCollectionForSeries()
{
if (_instanceList.Count < 2)
{
return;
}
// Optimization: a base collection has already been created, just return.
if (_seriesTagsStream != null)
{
return;
}
IEnumerator <InstanceXml> iterator = GetEnumerator();
if (false == iterator.MoveNext())
{
return;
}
DicomAttributeCollection collect1 = iterator.Current.Collection;
if (false == iterator.MoveNext())
{
return;
}
DicomAttributeCollection collect2 = iterator.Current.Collection;
_seriesTagsStream = new BaseInstanceXml(collect1, collect2);
}
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);
}
internal void SetBaseInstance(BaseInstanceXml baseInstance)
{
if (_baseInstance != baseInstance)
{
// force the element to be regenerated when GetMemento() is called
_cachedElement = null;
}
_baseInstance = baseInstance;
}
internal void SetMemento(XmlNode theSeriesNode)
{
_dirty = true;
_seriesInstanceUid = theSeriesNode.Attributes["UID"].Value;
if (!theSeriesNode.HasChildNodes)
{
return;
}
XmlNode childNode = theSeriesNode.FirstChild;
while (childNode != null)
{
// Just search for the first study node, parse it, then break
if (childNode.Name.Equals("BaseInstance"))
{
if (childNode.HasChildNodes)
{
XmlNode instanceNode = childNode.FirstChild;
if (instanceNode.Name.Equals("Instance"))
{
_seriesTagsStream = new BaseInstanceXml(instanceNode);
}
}
}
else if (childNode.Name.Equals("Instance"))
{
// This assumes the BaseInstance is in the xml ahead of the actual instances, note, however,
// that if there is only 1 instance in the series, there will be no base instance value
InstanceXml instanceStream;
if (_seriesTagsStream == null)
{
instanceStream = new InstanceXml(childNode, null);
}
else
{
instanceStream = new InstanceXml(childNode, _seriesTagsStream.Collection);
}
_instanceList.Add(instanceStream.SopInstanceUid, instanceStream);
}
childNode = childNode.NextSibling;
}
}
internal XmlElement GetMemento(XmlDocument theDocument, StudyXmlOutputSettings settings)
{
_dirty = false;
// Calc the base attributes
CalculateBaseCollectionForSeries();
XmlElement series = theDocument.CreateElement("Series");
XmlAttribute seriesInstanceUid = theDocument.CreateAttribute("UID");
seriesInstanceUid.Value = _seriesInstanceUid;
series.Attributes.Append(seriesInstanceUid);
XmlElement baseElement = theDocument.CreateElement("BaseInstance");
// 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)
{
XmlElement baseInstance = _seriesTagsStream.GetMemento(theDocument, settings);
baseElement.AppendChild(baseInstance);
}
else
{
_seriesTagsStream = null;
}
series.AppendChild(baseElement);
foreach (InstanceXml instance in _instanceList.Values)
{
instance.SetBaseInstance(_seriesTagsStream);
XmlElement instanceElement = instance.GetMemento(theDocument, settings);
series.AppendChild(instanceElement);
}
return(series);
}
internal void SetBaseInstance(BaseInstanceXml baseInstance)
{
if (_baseInstance != baseInstance)
{
// force the element to be regenerated when GetMemento() is called
_cachedElement = null;
}
_baseInstance = baseInstance;
}