Intelligent helplines optional to grid

[CSAUER]

I would like have a option to intelligent helplines.
What I mean is like Interface Builder (Apple xCode) or DrawIt-Application, it should snap automatically to following parameter:

- grid size away from parent object/window
- horizontal center parent object/window
- vertical center parent object/window
- along X-position of a other object
- along Y-position of a other object
- along X-position & width of a other object
- along Y-position & width of a other object
- grid size away from a other object

This should be visualized by a colored line to see where it is snapping onto.
This would be very cool.

Thanks.
CSAUER