private void OnChildGroupAdded(object sender, ListEventArgs <FilteredGroup <IImageSet> > e)
{
ImageSetTreeGroupItem newGroupItem = new ImageSetTreeGroupItem(e.Item, this, _tree.Binding);
_tree.Items.Add(newGroupItem);
OnUpdated();
}
/// <summary>
/// Constructor that allows a custom binding to be supplied.
/// </summary>
/// <param name="imageSets"></param>
/// <param name="primaryStudyInstanceUid"></param>
/// <param name="binding"></param>
public ImageSetTree(ObservableList <IImageSet> imageSets, string primaryStudyInstanceUid, ImageSetTreeItemBinding binding)
{
_primaryStudyInstanceUid = primaryStudyInstanceUid;
_imageSetGroups = new ImageSetGroups(imageSets);
_internalTree = new ImageSetTreeGroupItem(_imageSetGroups.Root, new StudyDateComparer(), binding);
UpdateInternalTreeRoot();
_internalTree.Updated += OnInternalTreeUpdated;
}
private void OnChildGroupRemoved(object sender, ListEventArgs <FilteredGroup <IImageSet> > e)
{
ImageSetTreeGroupItem groupItem = FindGroupItem(e.Item);
if (groupItem != null)
{
_tree.Items.Remove(groupItem);
groupItem.Dispose();
OnUpdated();
}
}
private void ExpandTo(IImageSetTreeItem item)
{
ImageSetTreeGroupItem parent = item.Parent;
while (parent != _internalTreeRoot)
{
parent.IsExpanded = true;
parent = parent.Parent;
}
_internalTreeRoot.IsExpanded = true;
}
private void OnChildGroupChanged(object sender, ListEventArgs <FilteredGroup <IImageSet> > e)
{
if (_changingGroupItem != null)
{
int replaceIndex = _tree.Items.IndexOf(_changingGroupItem);
if (replaceIndex >= 0)
{
_tree.Items[replaceIndex] = new ImageSetTreeGroupItem(e.Item, this, _tree.Binding);
OnUpdated();
}
_changingGroupItem.Dispose();
_changingGroupItem = null;
}
}
private ImageSetTreeGroupItem FindGroupItem(FilteredGroup <IImageSet> filteredGroup)
{
ImageSetTreeGroupItem groupItem = CollectionUtils.SelectFirst(_tree.Items,
delegate(IImageSetTreeItem treeItem)
{
if (treeItem is ImageSetTreeGroupItem)
{
return(((ImageSetTreeGroupItem)treeItem)._group == filteredGroup);
}
else
{
return(false);
}
}) as ImageSetTreeGroupItem;
return(groupItem);
}
private void UpdateInternalTreeRoot()
{
ImageSetTreeGroupItem treeRoot = _internalTree;
while (treeRoot.GetItems().Count == 0)
{
ReadOnlyCollection <ImageSetTreeGroupItem> childGroupItems = treeRoot.GetGroupItems();
int nonEmptyChildGroupItems = 0;
foreach (ImageSetTreeGroupItem childGroupItem in childGroupItems)
{
if (childGroupItem.GetAllItems().Count > 0)
{
++nonEmptyChildGroupItems;
}
}
if (nonEmptyChildGroupItems == 1)
{
treeRoot = childGroupItems[0];
}
else
{
break;
}
}
bool treeChanged = (_internalTreeRoot != treeRoot);
_internalTreeRoot = treeRoot;
UpdateSelection(false);
ExpandToSelection();
if (treeChanged)
{
OnTreeChanged();
}
}
private void OnChildGroupChanging(object sender, ListEventArgs <FilteredGroup <IImageSet> > e)
{
_changingGroupItem = FindGroupItem(e.Item);
}
private ImageSetTreeGroupItem(FilteredGroup <IImageSet> group, ImageSetTreeGroupItem parent, ITreeItemBinding binding)
: this(group, parent._imageSetComparer, binding)
{
_parent = parent;
}
internal ImageSetTreeItem(IImageSet imageSet, ImageSetTreeGroupItem parent)
{
_imageSet = imageSet;
_parent = parent;
}