[Cuis-dev] Changeset to make GUI code more robust

[Hilaire Fernandes]

This is what I tried to explained.

It occurs with Smalltalk Script, for example

(mySketch point: 0 at 0) color: (Color red adjustBrighness: 0.125)

In the constructed sketch below, when the user decided to invoke the 
style dialog for point, this color is not one of the defined ones in the 
DrGeo drop down colors menu. In that circumstance, the index is zero and 
the GUI crash. In the picture below, I can set the selected color to 
none (the button is empty) because nil is returned instead of an index 
access error. For DrGeo to take of this situation, I need the GUI to 
return nil and not throw an error.

Le 26/01/2026 à 19:54, Juan Vuletich a écrit :
>
> I can not see how #getListItem: could be called with a 0 argument. 
> Perhaps it is the sender in DrGeo that can take care of that?
>
> Thanks,
>
-- 
http://mamot.fr/@drgeo
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