/*
* After an element tree node is selected, update the text boxes with the element data
*/
void m_TreeResult_AfterSelect(object sender, TreeViewEventArgs e)
{
try
{
// Get the root parent node
MyTreeNode MWLNode = _globals.m_TreeResult.GetSelectedRootNode();
txtSelectedWorklist.Text = MWLNode.Text;
txtModality.Text = Utils.GetStringValue(MWLNode.m_DS, DemoDicomTags.Modality, false);
if (((MyTreeNode)e.Node).m_Element != null)
{
txtElementValue.Text = ((MyTreeNode)e.Node).m_DS.GetConvertValue(((MyTreeNode)e.Node).m_Element);
}
else
{
txtElementValue.Text = "";
}
// Disable the next button if the user doesn't have an image and an item selected
((MainForm)Parent.Parent).btnNext.Enabled = ((rasterImageViewer.Image != null) && (_globals.m_TreeResult.SelectedNode != null));
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
/*
* When a ListView item is selected, the corresponding node in the treeview will also get selected
*/
private void lstEmptyTags_SelectedIndexChanged(object sender, EventArgs e)
{
if (lstEmptyTags.SelectedItems.Count > 0)
{
MyListViewItem selItem = (MyListViewItem)lstEmptyTags.SelectedItems[0];
MyTreeNode selNode = (MyTreeNode)treeDSResult.SelectedNode;
try
{
if ((selNode != null) && (selNode.m_Element != null))
{
if (!(selItem.m_Element.Tag == selNode.m_Element.Tag))
{
treeDSResult.SelectNodeByElement(selItem.m_Element);
}
}
else
{
treeDSResult.SelectNodeByElement(selItem.m_Element);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
}
/*
* Recursively add children of an element TreeNode
*/
private void AddChildrenOfElement(DicomDataSet ds, MyTreeNode parentNode, DicomElement parentElement)
{
try
{
DicomElement currentElement = ds.GetChildElement(parentElement, true);
int parentNodeChildCount = 0;
while (currentElement != null)
{
DicomIod dIod = DicomIodTable.Instance.Find(null, parentElement.Tag, DicomIodType.Element, false);
// Determine the element tag
DicomTag tag;
long tagValue;
#if (LTV15_CONFIG)
if (currentElement.Tag != DemoDicomTags.Undefined)
{
tag = DicomTagTable.Instance.Find(currentElement.Tag);
tagValue = (long)currentElement.Tag;
}
else
{
tag = DicomTagTable.Instance.Find(currentElement.UserTag);
tagValue = currentElement.UserTag;
}
#else
tag = DicomTagTable.Instance.Find(currentElement.Tag);
tagValue = (long)currentElement.Tag;
#endif
// Add new element TreeNode
parentNode.Nodes.Add(
new MyTreeNode(String.Format("{0:X4}:{1:X4} - {2}",
Utils.GetGroup(tagValue),
Utils.GetElement(tagValue),
tag.Name),
ds,
currentElement));
// Check to see if the element has children
if (ds.GetChildElement(currentElement, true) != null)
{
parentNode.Nodes[parentNodeChildCount].ImageIndex = (int)MyIconIndex.Sequence;
parentNode.Nodes[parentNodeChildCount].SelectedImageIndex = (int)MyIconIndex.Sequence;
// Recursively add children of this element
AddChildrenOfElement(ds, (MyTreeNode)parentNode.Nodes[parentNode.Nodes.Count - 1], currentElement);
}
currentElement = ds.GetNextElement(currentElement, true, true);
parentNodeChildCount++;
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
/*
* Finds and selects the TreeNode with the specified DicomElement.
*/
public void SelectNodeByElement(DicomElement element)
{
try
{
MyTreeNode nodeToSelect = FindNodeByElement(element, null, null);
if (nodeToSelect != null)
{
SelectedNode = nodeToSelect;
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
public MyTreeNode GetSelectedRootNode()
{
// Get the root parent node of the currently selected node
MyTreeNode RootNode = (MyTreeNode)SelectedNode;
try
{
while (RootNode.Parent != null)
{
RootNode = (MyTreeNode)RootNode.Parent;
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
return(null);
}
return(RootNode);
}
/*
* Parses through the data set, finds the mandatory type 1 elements, and adds them
* to the ListView.
*/
public void Update(MyDicomDataSet ds, DicomClassType nClass)
{
try
{
if (ds == null)
{
return;
}
MyListViewItem currentItem;
string strTag = "";
string strDesc = "";
DicomElement element;
element = ds.GetFirstEmptyElementType1(nClass, ref strTag, ref strDesc);
while (element != null)
{
currentItem = new MyListViewItem();
currentItem.Text = strTag;
currentItem.SubItems.Add(strDesc);
currentItem.SubItems.Add("");
currentItem.m_Element = element;
currentItem.ImageIndex = (int)MyIconIndex.Missing;
MyTreeNode treeNode = m_TreeView.FindNodeByElement(element, null, null);
if (treeNode != null)
{
m_TreeView.FindNodeByElement(element, null, null).ImageIndex = (int)MyIconIndex.Missing;
m_TreeView.FindNodeByElement(element, null, null).SelectedImageIndex = (int)MyIconIndex.Missing;
Items.Add(currentItem);
}
element = ds.GetNextEmptyElementType1(element, nClass, ref strTag, ref strDesc);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
public void BuildTreeFromDataset(DicomDataSet ds, bool IsMWLDS)
{
if (Globals._closing == true || this.Disposing || this.IsDisposed)
{
return;
}
if (InvokeRequired)
{
Invoke(new BuildTreeFromDatasetDelegate(BuildTreeFromDataset), ds, IsMWLDS);
}
else
{
try
{
TreeNodeCollection IODClassNodes;
if (IsMWLDS)
{
// Add a root level node since there could be multiple MWL datasets to be displayed
string parentNodeString = String.Format(
"{0:D3} Modality Work List - {1} ",
(Nodes.Count + 1),
Utils.GetStringValue(ds, DemoDicomTags.Modality, false));
MyTreeNode rootNode = new MyTreeNode(parentNodeString, ds);
Nodes.Add(rootNode);
rootNode.ImageIndex = (int)MyIconIndex.Worklist;
rootNode.SelectedImageIndex = (int)MyIconIndex.Worklist;
IODClassNodes = rootNode.Nodes;
}
else
{
// Use the tree's root for IOD classes
IODClassNodes = Nodes;
}
// Insert nodes for IOD classes
for (int i = 0; i < ds.ModuleCount; i++)
{
DicomModule dm = ds.FindModuleByIndex(i);
DicomIod dIod = DicomIodTable.Instance.FindModule(ds.InformationClass, dm.Type);
if (dIod != null)
{
IODClassNodes.Add(
new MyTreeNode(dIod.Name, ds, dIod));
IODClassNodes[i].ImageIndex = (int)MyIconIndex.Folder;
IODClassNodes[i].SelectedImageIndex = (int)MyIconIndex.Folder;
}
else
{
IODClassNodes.Add(
new MyTreeNode("UNKNOWN"));
IODClassNodes[i].ImageIndex = (int)MyIconIndex.Missing;
IODClassNodes[i].SelectedImageIndex = (int)MyIconIndex.Missing;
}
// Insert nodes for the elements within the current IOD class
for (int j = 0; j < dm.Elements.Length; j++)
{
// Determine the element tag
DicomTag tag;
long tagValue;
#if (LTV15_CONFIG)
if (dm.Elements[j].Tag != DemoDicomTags.Undefined)
{
tag = DicomTagTable.Instance.Find(dm.Elements[j].Tag);
tagValue = (long)dm.Elements[j].Tag;
}
else
{
tag = DicomTagTable.Instance.Find(dm.Elements[j].UserTag);
tagValue = dm.Elements[j].UserTag;
}
#else
tag = DicomTagTable.Instance.Find(dm.Elements[j].Tag);
tagValue = (long)dm.Elements[j].Tag;
#endif
// Add new element TreeNode
IODClassNodes[i].Nodes.Add(
new MyTreeNode(String.Format("{0:X4}:{1:X4} - {2}",
Utils.GetGroup(tagValue),
Utils.GetElement(tagValue),
tag.Name),
ds,
dm.Elements[j]));
IODClassNodes[i].Nodes[j].ImageIndex = (int)MyIconIndex.Element;
IODClassNodes[i].Nodes[j].SelectedImageIndex = (int)MyIconIndex.Element;
// Check to see if the element has children
if (ds.GetChildElement(dm.Elements[j], true) != null)
{
IODClassNodes[i].Nodes[j].ImageIndex = (int)MyIconIndex.Sequence;
IODClassNodes[i].Nodes[j].SelectedImageIndex = (int)MyIconIndex.Sequence;
// Recursively add children of this element
AddChildrenOfElement(ds, (MyTreeNode)IODClassNodes[i].Nodes[j], dm.Elements[j]);
}
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
}
/*
* Recursively search the tree for the a node with the specified DicomElement.
*/
public MyTreeNode FindNodeByElement(DicomElement element, MyTreeNode parentNode, MyTreeNode foundNode)
{
if (Nodes.Count == 0)
{
return(null);
}
MyTreeNode currentNode;
try
{
if (parentNode == null)
{
currentNode = (MyTreeNode)Nodes[0];
}
else
{
currentNode = (MyTreeNode)parentNode.Nodes[0];
}
while ((currentNode != null) && (foundNode == null))
{
if (currentNode.m_Element != null)
{
//The current node is an element
#if (LTV15_CONFIG)
if ((currentNode.m_Element.Tag == element.Tag) && (currentNode.m_Element.UserTag == element.UserTag))
#else
if (currentNode.m_Element.Tag == element.Tag)
#endif
{
// We've found the node
foundNode = currentNode;
}
else if (currentNode.Nodes.Count > 0)
{
// We didn't find the node and this node has children
foundNode = FindNodeByElement(element, currentNode, null);
currentNode = (MyTreeNode)currentNode.NextNode;
}
else
{
// We didn't find the node and there aren't any children
currentNode = (MyTreeNode)currentNode.NextNode;
}
}
else
{
//the current node is not an element
if (currentNode.Nodes.Count > 0)
{
// We didn't find the node and this node has children
foundNode = FindNodeByElement(element, currentNode, null);
currentNode = (MyTreeNode)currentNode.NextNode;
}
else
{
// We didn't find the node and there aren't any children
currentNode = (MyTreeNode)currentNode.NextNode;
}
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
return(null);
}
return(foundNode);
}
