Layout manager for .NET, UI agnostic

I need a simple Layout Manager that is UI agnostic. By this, I mean it should not specify how I want to represent my shapes/controls on the screen. It should just enable me to say:

I want shape X here. I want shape Y under shape X. I want shape Z to surround X, and isolate itself from shape Y.

I guess it would be nice 开发者_运维问答if it can also give me (X, Y) for each shape when I am finished.

I am using .NET.

You could consider Windows Presentation Foundation

The Layout System