1) Have a window with really long title
2) Set the tab box to "big icons" variant and use it.
As you can see in the screenshot the text overruns to the shadowed area.
Created attachment 73060 [details]
Git commit 484b64427f3af16374119451d02e8fbd09cdb78e by Martin Gräßlin.
Committed on 09/08/2012 at 13:26.
Pushed by graesslin into branch 'KDE/4.9'.
Properly elide text in large icons TabBox theme
Using the same elide adjustments as in Thumbnails theme.
M +22 -0 kwin/tabbox/qml/clients/big_icons/contents/ui/main.qml