[squeak-dev] Re: Text truncation in trunk
Juan Vuletich
juan at jvuletich.org
Tue Sep 22 21:49:21 UTC 2009
Hi Folks,
Andreas Raab wrote:
> Hi Javier -
>
> [cc: Juan for questions regarding AA fonts below]
>
> Thanks for pointing this out. This appears to be a problem caused by
> the new fonts; for some reason the code computes an incorrect base
> kern, i.e.,
>
> (StrikeFont familyName: 'Atlanta' pointSize: 22) baseKern
>
> This results in -2 (should be zero I think). Juan, I'm wondering why
> we don't just store the base kern in the font and do something along
> the lines of:
>
> baseKern
> ^baseKern ifNil:[0]
>
> to leave the previous fonts alone. Alternatively, we can leave the
> computation in and just set the base kern for the fonts we care about.
Just did that. Trunk updated. The only non-zero base kern is for the
small pda font, where it is really needed.
> There is a remaining question which is why the text isn't resizing
> itself to the proper width (with or without wrong kerning) but I think
> that's a separate question to consider.
Tried to dive a bit in the deep waters of CharacterScanner, and the
handling of fractional kerning, etc. I believe that StrikeFont>>widthOf:
should substract the base kern in the last line (as it does in Cuis),
but doing this brings yet more artifacts...
Cheers,
Juan Vuletich
> Cheers,
> - Andreas
>
> Javier Diaz-Reinoso wrote:
>> Testing some code I wrote in Squeak-3.10.2-Closures (and works ok),
>> in the trunk I find some text truncation.
>> Example code is:
>>
>> font1 := (TextFontReference toFont: (StrikeFont familyName:
>> 'Atlanta' size: 24)).
>> msg := (3.83 asString, ' RPS (', 3 asString, ' pts), Vavg=', 2.35
>> asString)
>> asText addAttribute: font1.
>> nota:=TextMorph new.
>> nota contents: msg.
>> nota openInWorld
>>
>> ------------------------------------------------------------------------
>>
>>
>> ------------------------------------------------------------------------
>>
>>
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