Re: DejaVu fonts on Firefox?

What would actually be the purpose of packaging a font with Firefox? If 
you want a fallback font that displays something if no other font has 
the glyphs then a bitmap font like unifont can do the job much better 
than DejaVu. If you on the other hand want a good font as default font 
so you always have a nice display font (to use as "Sans" font for 
example) then DejaVu is more suitable (at least for the scripts we 
provide...)

Greetings
Ben

On Saturday 31 May 2008, Lucas Malor wrote:
> Andrés Delfino had submitted to Bugzilla <at> Mozilla a request to add
> DejaVu fonts to Firefox installer. It seems anyway there's some
> licence problems:
> https://bugzilla.mozilla.org/show_bug.cgi?id=408497#c4
>
> Some questions:
> 1) What are the differences between your project and Free UCS Outline
> one ( http://www.gnu.org/software/freefont/ ) or ClearlyU one (
> http://crl.nmsu.edu/~mleisher/cu.html )?
>
> 2) Your fonts provide a larger range coverage of characters than
> those two other projects?
>
> 3) Your chars are vectorial?
>
> 4) Do you use FreeType? Your fonts are compatible with all common
> OSes (Windows, Linux, Mac)?

added u+01ba and u+01bf to mono

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U+1FB7 in Dejavu Sans Mono, at size 12 (Greek small alpha with perispomeni+ypogegrammeni)

Hi All,
I just noticed that U+1FB7, ᾷ, at size 12 and rendered with DejaVu Sans 
Mono,
is shown incorrectly. It is shown as with a macron (horizontal line) 
instead of something like a tilde.

All other sizes are shown properly.

Simos

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Re: U+1FB7 in Dejavu Sans Mono, at size 12 (Greek small alpha with perispomeni+ypogegrammeni)

>>>>> "Simos" == Simos Xenitellis <simos.lists <at> googlemail.com> writes:

Simos> I just noticed that U+1FB7, ᾷ, at size 12 and rendered with
Simos> DejaVu Sans Mono, is shown incorrectly. It is shown as with a
Simos> macron (horizontal line) instead of something like a tilde.

I just tried it in ftview.  (AIUI, at ftview's default dpi, pt size ≡ pt/em.)

With the bytecode interpreter and grayscale, I saw a clear tilde at all
readable pt sizes.  With forced autofitting, the tilde looked like a
macron at 22, 21, 20, 19, 16, 15, 11 and 10 pt/em.

Without anitaliasing, and as expected, given the instructions, it is
hard to read at any size below 15 or 16.  But the autofitter still ends
up with more of a macron at 10, 11, 15 and 16 pt/em.

This may, then, be a freetype bug rather than a DejaVu bug.

This is with freetype from cvs as of June 05.  I believe there were some
more changes since then, perhaps also a release.

Σιμοσ:  Do you use autofit or bytecode?

-JimC
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Re: U+1FB7 in Dejavu Sans Mono, at size 12 (Greek small alpha with perispomeni+ypogegrammeni)

On Tue, Jun 10, 2008 at 9:18 PM, James Cloos <cloos <at> jhcloos.com> wrote:
>>>>>> "Simos" == Simos Xenitellis <simos.lists <at> googlemail.com> writes:
>
> Simos> I just noticed that U+1FB7, ᾷ, at size 12 and rendered with
> Simos> DejaVu Sans Mono, is shown incorrectly. It is shown as with a
> Simos> macron (horizontal line) instead of something like a tilde.
>
> I just tried it in ftview.  (AIUI, at ftview's default dpi, pt size ≡ pt/em.)
>
> With the bytecode interpreter and grayscale, I saw a clear tilde at all
> readable pt sizes.  With forced autofitting, the tilde looked like a
> macron at 22, 21, 20, 19, 16, 15, 11 and 10 pt/em.
>
> Without anitaliasing, and as expected, given the instructions, it is
> hard to read at any size below 15 or 16.  But the autofitter still ends
> up with more of a macron at 10, 11, 15 and 16 pt/em.
>
> This may, then, be a freetype bug rather than a DejaVu bug.
>
> This is with freetype from cvs as of June 05.  I believe there were some
> more changes since then, perhaps also a release.
>
> Σιμοσ:  Do you use autofit or bytecode?

Thanks for reminding me this.

I keep the standard settings found in Ubuntu 8.04, which means that
the bytecode interpreter is not enabled.
I use autofit (autohinting).

Indeed, DejaVu is apparently fine.
The character ᾷ appears as if it has a macron (flat horizontal line)
to me when all these apply:

1. The font is DejaVu Sans Mono
2. The font size is 12 points (it has to be 12 points)
3. In the font properties, Hinting has been set to Slight (it has to
be "Slight")

It is interesting to note that no matter what the other options are
set in the gnome-appearence-properties applet,
it is the setting of Hinting to Slight that makes the difference.

Cheers,
Simos
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Re: U+1FB7 in Dejavu Sans Mono, at size 12 (Greek small alpha with perispomeni+ypogegrammeni)

>>>>> "Simos" == Simos Xenitellis <simos.lists@...> writes:

Simos> It is interesting to note that no matter what the other options
Simos> are set in the gnome-appearence-properties applet, it is the
Simos> setting of Hinting to Slight that makes the difference.

Fontconfig's hintstyle=hintslight coresponds to freetype's light
autofitter, which only fits in the vertical direction, so that
horizontal metrics are are not affected.

At 96 dpi, I see flat tildes at 8pt and 12pt.

I think this is a good issue to report at:

http://savannah.nongnu.org/bugs/?func=additem&group=freetype

-JimC
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Re: U+1FB7 in Dejavu Sans Mono, at size 12 (Greek small alpha with perispomeni+ypogegrammeni)

Thanks James.

I filed a bug report,
bug #23537: When hintstyle=hintslight, character is rendered
incorrectly (tilde as macron)
https://savannah.nongnu.org/bugs/index.php?23537

Simos

On Tue, Jun 10, 2008 at 11:43 PM, James Cloos <cloos@...> wrote:
>>>>>> "Simos" == Simos Xenitellis <simos.lists@...> writes:
>
> Simos> It is interesting to note that no matter what the other options
> Simos> are set in the gnome-appearence-properties applet, it is the
> Simos> setting of Hinting to Slight that makes the difference.
>
> Fontconfig's hintstyle=hintslight coresponds to freetype's light
> autofitter, which only fits in the vertical direction, so that
> horizontal metrics are are not affected.
>
> At 96 dpi, I see flat tildes at 8pt and 12pt.
>
> I think this is a good issue to report at:
>
> http://savannah.nongnu.org/bugs/?func=additem&group=freetype
>
> -JimC
> --
> James Cloos <cloos@...>         OpenPGP: 1024D/ED7DAEA6
>
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Re: added u+01ba and u+01bf to mono

Nice patch, it's just been committed.

Thanks

2008/6/4 Heikki Lindroos <heikki.lindroos <at> gmail.com>:
> Added u+01ba ƺ and u+01bf ƿ to mono
>
> cheers,
> Heikki Lindroos
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new letters/glyphs

Hello!

1. The Unicode Technical Committee made a decision to encode two new letters: CYRILLIC CAPITAL LETTER PE
WITH DESCENDER (U+0524) and CYRILLIC SMALL LETTER PE WITH DESCENDER (U+0525). The code points won't be changed.

http://www.unicode.org/alloc/Pipeline.html

2. The UTC made a decision to change glyphs of U+04BE/F (the descender became straight) and U+04A8/9.

http://std.dkuug.dk/jtc1/sc2/wg2/docs/n3435.pdf

Please, see this font http://narod.ru/disk/970866000/DejaVuSansAbk.ttf.html (it has new letters and glyphs).

Abkhaz user community would like DejaVu fonts to have these new letters and glyphs.

Regards :)

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[PATCH] LATIN CAPITAL/SMALL LETTER SALTILLO

The miniscule saltillo is traditionally represented by an ascii single
quote; the majuscule was encoded primarily because the UCS and Unicode
enforce casing pairs for new characters, but an exclamation point with-
out the dot is recommended.

The attached gzip(1)ed patch adds those to each face.  The miniscule
is a copy of quotesingle and the majuscule is a copy of exclam with
the dot removed.

I copied the hints over, too, as is.  That should work fine for the
miniscule, but not for the majuscule.  (Some of the faces had the
stroke first and others had the dot first, so the point indices are
off for the latter group.)

-JimC
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