[Usability] bad dialog, need advice

["Dr. Michael J. Chudobiak" <mjc avtechpulse com>]

Hi all,

The crop dialog in gthumb is currently quite confusing. The main "crop 
now" button is hidden in the upper left, diagonally opposite the main 
button cluster. See for example:

http://www.avtechpulse.com/downloads/crop-old.png

New users normally drag a selection area with the mouse, and then 
(incorrectly) click "Apply", which closes the dialog without cropping. 
They are supposed to click "Crop", and then click "Apply" (= close 
dialog and save file later) or "Save" (= save file immediately and close 
dialog), or "Undo", or "Redo", or "Cancel".

I tried my hand at redesigning the dialog here:

http://www.avtechpulse.com/downloads/crop-new.png

and I think it's somewhat better, but I'd like suggestions / warnings 
from usability/HIG-gurus before I go too far...

For the curious, the "old" dialog is in gthumb-2-10 (svn gthumb-2-10 
branch + current releases) and the "new" dialog is in trunk 
(experimentally).

- Mike