How to do smooth scrolling for lists in Swing

Question

On the iPhone scrolling through lists is animated smoothly. Ignoring the inertia effect (though having it would be cool as well) - how would I go about making a Swing listbox scroll smoothly like that?

There are other examples as well, like browsers, but those use native controls which I cannot use with Swing.

Answer 1

If you are using JList try overwrite getScrollableUnitIncrement(Rectangle, int, int) and getScrollableBlockIncrement(Rectangle, int, int) to return custom increment .. e.g. 2 pixels instead of default values computed from list entry height.