Hi Eric.



I am building a Dia diagram of the Font's stuff and beginning to get some insights.





It looks like TTFontDescription is the holder of the glyphs for a font that is stored in squeak. (memory? image?).



There is a parallel construct TTFileDescription that does similar stuff, but off of the file system.



Let's stick with TTFontDescription....



Browse TTFontDescription class  and trow in an "inspect" as below....

descriptionNamed: descriptionName

Descriptions inspect.

^ Descriptions detect: [:f | f first name = descriptionName] ifNone: [Default].





I added that Descriptions inspect. It shows a Set.

Browsing that set, I was able to pick one of the entries in the Set. 

The entries are very important as they hold the guts of the fonts.: TTFontDescription.



Pick one in the entries in the set and send it the message 'first name'



You can then plug that into the descriptionNamed and see the TTFontDescription (There is a similar class TTFileDescription)



I have Unifont installed so I send the message:



TTFontDescription descriptionNamed:'Unifont'




per the name gleaned from above.



In the TTCFontDescription, there is a 

glyphTable and a bunch of glyphs.





So, this looks like the bloody guts where the error occurs...maybe.



Investigating this, I learned something. Glyphs are not "Pictures" that are plopped into a space on a "screen" rather, they are instructions for drawing a figure.

How it is done, I do not know yet.





cheers,



t
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