|
public IsDescendantOf ( |
||
| aView | ||
| Результат | bool | |
/**
* Returns self if aView is the receiver or aView is a subview of the receiver,
* the ancestor view shared by aView and the receiver if any, or
* aView if it is an ancestor of the receiver, otherwise returns nil.
*/
public virtual NSView AncestorSharedWithView(NSView aView)
{
NSView self = this;
if (self == aView)
return self;
if (this.IsDescendantOf(aView))
return aView;
if (aView.IsDescendantOf(self))
return self;
/*
* If neither are descendants of each other and either does not have a
* superview then they cannot have a common ancestor
*/
if (_super_view == null)
return null;
if (aView.Superview == null)
return null;
/* Find the common ancestor of superviews */
return _super_view.AncestorSharedWithView((NSView)aView.Superview);
}
