And the last one...
-------- Original Message --------
Subject: Re: Font bugs
Date: Sun, 22 Jul 2007 12:25:30 -0700
From: Andreas Raab <[EMAIL PROTECTED]>
To: Ralph Johnson <[EMAIL PROTECTED]>
CC: Discussion about development of Squeak 3.10
<[email protected]>
References:
<[EMAIL PROTECTED]>
<[EMAIL PROTECTED]>
Ralph Johnson wrote:
"TextStyle default" starts out at Accuny12, which is based on
StrikeFont. But it eventually gets changed to BitstreamVeraSans,
which is based on TTCFont. If we want to avoid recursive fonts, the
default textstyle should never be based on TTCFont.
That is needlessly restrictive. The problem isn't TTCFont; the problem
is that the installation of fallback fonts is wrong (see my previous
message). Some care must be taken to not introduce recursive links but
this is a problem that is explicitly created - the default (creation of
a fixed face font) works perfectly fine (we use truetype fonts inside
Qwaq for everything).
It appears that enabling a tiny display has the side effect of setting
the default font to BitstreamVeraSans. And, setting the preferences
back to its original value doesn't set the default font back.
Indeed, looking at the senders of tinyDisplay gets you to
Preferences>>smallLandFonts which is called from
Preferences>>displaySizeChanged (but the initialization is missing).
What a mess.
So, I know a lot more than I used to, but I am not sue what to do. Is
it OK for the defaul textstyle to be BitstreamVeraSans? If so, how
can we prevent recursive fonts? If not, what font should we get when
we have a tiny display?
It's perfectly fine to have a default truetype textstyle. It is NEVER
okay to simply assume that TextStyle defaultFont is a proper font to use
as a fallback font. If you want to use a fallback font (other than a
fixed face font) you need to be explicit about that and you need to make
(manually) sure that creating this dependency doesn't create a cycle.
This is what's wrong with StrikeFont class>>setupDefaultFallbackFonts
which assumes that the default font is Accuny - which is okay as long as
Accuny is used explicitly and not via the assumption that the default
text style will always be Accuny.
Cheers,
- Andreas
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