Avi Bryant wrote:

> If a PluggableListMorph is given a styled item with the 
> addHorzScrollbar changeset loaded, the Text object will eventually get 
> given to AbstractFont>>widthOfString:, which doesn't know how to deal 
> with it.  I'm not sure who is at fault here (should #widthOfString: be 
> able to deal with Text?  Should it make sure to convert its argument 
> to a string first?  Should the PLM be converting its items to strings 
> before asking about their widths?  Should my code not be giving a Text 
> item to a PLM?).
>
> Full debug log is attached. 


For what it's worth, I ran into the same problem.  If we could get this 
resolved, it'd be great to get the addHorzScrollbar changeset 
incorporated into 3.7.  Other than this problem, it looked pretty good.

Offhand, it seems reasonable that AbstractFont should know how to 
compute the width of some styled text.  (Converting to a String ahead of 
time wouldn't be ideal because bold text is often wider than non-bold 
text, for example.)  The only problem then is that the method should be 
renamed to widthOfStringOrText:, or something like that.

- Doug