How to implement nice tooltips (hover) in list grid cells?

[fhisg]

Question is somewhat related to http://forums.smartclient.com/showthread.php?p=85938

If the content of a list grid cell can't be fully displayed to size constraints (overflow hidden or ellipsis) I'd like show the full content in a "tooltip" or hover. I pure HTML I'd set the title attribute for this.

Taking http://www.smartclient.com/smartgwt/showcase/#grid_autofit_rows in FF and setting title="<full-content>" on either the <td> or the <div> produces a nice big hover that is properly resized by the browser.

How do I achieve this directly with SmartGwt?

[fhisg]

Yes, I do know http://www.smartclient.com/smartgwt/showcase/#grid_interaction_value_hover and canHover/setHoverWidth/setShowHover et al.

The issue I have with this approach is that /I/ have to set the width of the hover. It's:
a) always the same no matter how much content it has got to accommodate
b) always the same for each grid field (can only be set on the grid AFAIK)