/// <summary>Clear the editor's model.</summary>
private void ClearModel()
{
if (ModelRoot != null)
{
ModelRoot.TreeStructureChanged -= Model_TreeStructureChanged;
}
ModelRoot = null;
ElementGraphArea.Clear();
}
/// <summary>Assign <paramref name="elementBuilderTree"/> as the model for this editor.</summary>
private void SetModel(IElementTreeNode elementBuilderTree)
{
ClearModel();
ModelRoot = elementBuilderTree.Root;
ElementBuilderGraph graph = ElementBuilderGraph.Of(elementBuilderTree);
ElementGraphArea.LogicCore = new ElementBuilderLogicCore(graph);
ElementGraphArea.GenerateGraph(true, true);
ElementDescription.DataContext = this;
Properties.DataContext = this;
XmlLabel.DataContext = this;
// I think the animation looks cool when we put a new tree in the GraphArea, but we don't want to trigger that animation every time the selected vertex changes.
ZoomCtrl.IsAnimationEnabled = true;
ZoomCtrl.ZoomToFill();
ZoomCtrl.IsAnimationEnabled = false;
ModelRoot.TreeStructureChanged += Model_TreeStructureChanged;
}