public void Canonicalize()
{
Microsoft.Windows.Design.Interaction.Selection selection = this.featureManager.Context.Items.GetValue <Microsoft.Windows.Design.Interaction.Selection>();
if (selection == null || !Enumerable.Any <ISceneNodeModelItem>(Enumerable.OfType <ISceneNodeModelItem>((IEnumerable)selection.SelectedObjects), (Func <ISceneNodeModelItem, bool>)(item => item.SceneNode.DocumentNode.Marker == null)))
{
return;
}
this.UpdateSelection();
}
private void SetSelection(Microsoft.Windows.Design.Interaction.Selection selection)
{
if (this.settingSelection)
{
return;
}
try
{
this.settingSelection = true;
this.featureManager.Context.Items.SetValue((ContextItem)selection);
}
finally
{
this.settingSelection = false;
}
}
private void OnUserSelectionChanged(Microsoft.Windows.Design.Interaction.Selection selection)
{
if (this.settingSelection)
{
return;
}
try
{
this.settingSelection = true;
using (SceneEditTransaction editTransaction = this.viewModel.CreateEditTransaction(StringTable.UndoUnitSetSelection))
{
List <SceneElement> list = new List <SceneElement>();
SceneElement primarySelection = (SceneElement)null;
foreach (ModelItem modelItem in selection.SelectedObjects)
{
ISceneNodeModelItem sceneNodeModelItem = modelItem as ISceneNodeModelItem;
if (sceneNodeModelItem != null)
{
SceneElement sceneElement = sceneNodeModelItem.SceneNode as SceneElement;
if (sceneElement != null)
{
list.Add(sceneElement);
if (modelItem == selection.PrimarySelection)
{
primarySelection = sceneElement;
}
}
}
}
if (list.Count == 0)
{
this.viewModel.ElementSelectionSet.Clear();
}
else
{
this.viewModel.ElementSelectionSet.SetSelection((ICollection <SceneElement>)list, primarySelection);
}
editTransaction.Commit();
}
}
finally
{
this.settingSelection = false;
}
}