// only for IBranch
private void MagnetMiddle(object source, BaseShape other)
{
if (other == null)
{
return;
}
// change logic for each child.
_pivot.DoAll(i =>
{
if (!other.ChildrenNode.Contains(i))
{
other.ChildrenNode.Add(i);
i.Parent = other;
}
});
other.ArrangeChildrenPosition();
_pivot.ResetStroke();
other.ResetStroke();
}
