From: Stephen Berman <Stephen.Berman@gmx.net>
To: emacs-devel@gnu.org
Subject: Re: (re)display problems after font backend merge
Date: Fri, 16 May 2008 12:22:56 +0200 [thread overview]
Message-ID: <87fxsiczun.fsf@escher.local.home> (raw)
In-Reply-To: E1JwoGU-0003CK-QW@etlken.m17n.org
On Fri, 16 May 2008 09:57:42 +0900 Kenichi Handa <handa@m17n.org> wrote:
> In article <87fxsjmmo2.fsf@escher.local.home>, Stephen Berman <Stephen.Berman@gmx.net> writes:
>
>> Since Kenichi Handa's font backend merge yesterday I see different, and
>> at least partly buggy, display and redisplay effects. This shows up
>> clearly in some of my customizations, in particular of the mode line and
>> the Gnus Summary buffer. The following screen shots show the
>> differences; the top image is post-merge, the bottom pre-merge:
>
>> [2 Post-merge display <image/png (base64)>]
>
>> [3 Pre-merge display <image/png (base64)>]
>
>> [4 <text/plain (7bit)>]
>
>> Here is a description of the differences I see:
>
>> - In the post-merge image, the underlining I use in the mode line is
>> broken, as is the underlining of the current article in the Gnus Summary
>> buffer, and the latter underlining touches the bottom of the characters
>> in the post-merge image, while there is a (IMO more pleasing) space in
>> the pre-merge display.
>
> Please show me how you customize Gnus,
(setq gnus-summary-line-format "%U%R%z%((%4L) %-20,20f \x2502 %*%B%s%)\n"
gnus-sum-thread-tree-root "\x25b6 "
gnus-sum-thread-tree-false-root "\x25b7 "
gnus-sum-thread-tree-vertical "\x2502 "
gnus-sum-thread-tree-leaf-with-other "\x251c\x2500\x25b8 ..."
gnus-sum-thread-tree-single-leaf "\x2570\x2500\x25b8 ...")
> and exactly which
> font is used in the Gnus summary buffer by C-u C-x =.
For ascii:
-unknown-DejaVu Sans Mono-normal-normal-normal-*-12-*-*-*-m-0-iso8859-1
For the non-ascii characters:
-gnu-unifont-medium-r-normal--16-160-75-75-p-80-iso10646-1
This is post-merge, in the pre-merge buffer, the corresponding line of
the character description for both ascii and non-ascii characters is
this:
dejavu sans mono:pixelsize=12:foundry=unknown:weight=medium:slant=r:width=normal
>> - The fringe arrow in the Summary buffer is redisplayed in the mode
>> line.
>
> This is very strange. The font-backend merge should not
> touch fringe displaying.
I cannot reproduce this; maybe it was a random redisplay glitch, which I
just happened to catch in the screen shot. (In contrast, the broken
underlining persists.)
>> - The character size in the mode line is larger in the post-merge image
>> than in the pre-merge image (in both it is font family Helvetica).
>
>> - The appearance of the non-ascii characters I use for threading and
>> separation in the Summary buffer differs; in particular, the separator
>> forms a broken vertical line in the post-merge buffer, while it is a
>> continuous vertical line in the pre-merge buffer (except for the line
>> containing the Indic characters, which is also misaligned in both
>> images).
>
> Please do C-u C-x = on that vertical line to see which font
> is used in both version.
post-merge:
character: │ (9474, #o22402, #x2502)
preferred charset: unicode (Unicode (ISO10646))
code point: 0x2502
syntax: _ which means: symbol
category: c:Chinese h:Korean j:Japanese
buffer code: #xE2 #x94 #x82
file code: #xE2 #x94 #x82 (encoded by coding system utf-8-unix)
display: by this font (glyph code)
-gnu-unifont-medium-r-normal--16-160-75-75-p-80-iso10646-1 (#x2502)
pre-merge:
character: │ (9474, #o22402, #x2502)
preferred charset: unicode (Unicode (ISO10646))
code point: 0x2502
syntax: _ which means: symbol
category: c:Chinese h:Korean j:Japanese
buffer code: #xE2 #x94 #x82
file code: #xE2 #x94 #x82 (encoded by coding system utf-8-unix)
display: by this font (glyph code)
dejavu sans mono:pixelsize=12:foundry=unknown:weight=medium:slant=r:width=normal (#x858)
Steve Berman
next prev parent reply other threads:[~2008-05-16 10:22 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-15 18:45 (re)display problems after font backend merge Stephen Berman
2008-05-16 0:57 ` Kenichi Handa
2008-05-16 10:22 ` Stephen Berman [this message]
2008-05-17 3:19 ` David De La Harpe Golden
2008-05-17 12:30 ` Stephen Berman
2008-05-17 14:02 ` David De La Harpe Golden
2008-05-17 18:37 ` Stephen Berman
2008-05-18 3:30 ` David De La Harpe Golden
2008-05-18 18:19 ` Stephen Berman
2008-05-22 20:36 ` Stephen Berman
2008-05-23 4:16 ` David De La Harpe Golden
2008-05-23 12:28 ` Stephen Berman
2008-05-23 16:10 ` David De La Harpe Golden
2008-05-23 17:03 ` Stephen Berman
2008-05-23 17:37 ` David De La Harpe Golden
2008-05-23 19:42 ` James Cloos
2008-05-23 20:41 ` Stephen Berman
2008-05-23 21:57 ` David De La Harpe Golden
2008-05-24 1:16 ` James Cloos
2008-05-24 23:01 ` Stephen Berman
2008-05-27 13:17 ` Stephen Berman
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