attachment size problem and clickable area

[Riccardo Mottola]

Hi,

thanks to a hint of Andreas, I fixed GNUmail to display properly the 
icons of attachments, there was a sort of hack used only for Cocoa, but 
once "fixed" it works on cocoa 10.3-10.4-10.6 and is needed on GNUstep 
too. Probably one of the many things that were not "bugs" in GNUstep or 
Mac but were handled conditionally in GNUMail.

These attachments are handled in NSAttributedString+Extensions.m

A cell is attached in the attributed string, showing the Icon and below 
the filename.

On Mac, everything is fine and works this way: you can click on the 
whole "area" of the cell, be it the icon or the file name. The click 
pops up a file save panel.

On GNUstep, the "sensible" area to click is somehow shifted to the left 
or anyway smaller. Where it works, the click gets handled, but not 
everywhere.
I suppose that the icon gets placed centered relative to the below 
filename and while displayed correctly the click region is not correctly 
recalculated.

Can you reproduce the problem? Fix ideas?

Riccardo