/// <summary>
///
/// </summary>
/// <param name="control"></param>
/// <param name="toggle"></param>
public virtual void SelectLink(NodeEdgeControl control, LinkInfo info, bool toggle)
{
if (control == null)
{
return;
}
object edge = (object)control.Edge;
if (selected_links_.Contains(info))
{
if (toggle)
{
control.Path.SetValue(Selector.IsSelectedProperty, false);
selected_links_.Remove(info);
link_controls_.Remove(info);
}
}
else
{
control.Path.SetValue(Selector.IsSelectedProperty, true);
selected_links_.Add(info);
link_controls_.Add(info, control.Path);
}
}
/// <summary>
///
/// </summary>
/// <param name="control"></param>
public virtual void UnselectLink(NodeEdgeControl control, LinkInfo info)
{
if (control == null)
{
return;
}
object edge = (object)control.Edge;
control.Path.SetValue(Selector.IsSelectedProperty, false);
selected_links_.Remove(info);
link_controls_.Remove(info);
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="args"></param>
protected void OnLinkSelected(object sender, LinkSelectedEventArgs args)
{
// Travel up the visual tree to find the edge
FrameworkElement element = args.Link;
NodeEdgeControl control = element.FindVisualParentOfType <NodeEdgeControl>();
NodeEdge edge = control.Edge as NodeEdge;
Tuple <object, object> link = element.DataContext as Tuple <object, object>;
LinkInfo info = selected_links_.FirstOrDefault(x => (x.Link == link) && (x.Edge == edge));
if (info == null)
{
ClearSelection();
info = new LinkInfo()
{
Edge = edge, Link = link
};
SelectLink(control, info, false);
}
}
