unofficial mirror of bug-gnu-emacs@gnu.org 
 help / color / mirror / code / Atom feed
From: Werner LEMBERG <wl@gnu.org>
To: eliz@gnu.org
Cc: clement.pitclaudel@live.com, ohwoeowho@gmail.com, 20628@debbugs.gnu.org
Subject: bug#20628: 25.0.50; Incorrect line height for some fonts
Date: Sat, 23 May 2015 11:57:31 +0200 (CEST)	[thread overview]
Message-ID: <20150523.115731.197331942.wl@gnu.org> (raw)
In-Reply-To: <20150523.115022.503695176.wl@gnu.org>


> IMHO the bes solution is to completely ignore font-wide ascender and
> descender values.  Instead, use the TeX approach: set the line gap
> to the current size of the font, multiplied by a factor of 1.2 (and
> make this configurable on a font-by-font basis in case it isn't
> already), and increase the linegap if individual glyphs need it.

I have to correct myself: The linegap should apply to all fonts, of
course.  To make various fonts optically fit a per-font scaling factor
should be used (what Emacs already provides, I think).

> As a corollary, the only question is how to compute a proper default
> linegap value without relying on quirks caused by incompatible font
> formats and font metric data.

And for this default linegap value I suggest the abovementioned value:

  linegap_default = 1.2 * font_size


    Werner





  reply	other threads:[~2015-05-23  9:57 UTC|newest]

Thread overview: 114+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-22  3:02 bug#20628: 25.0.50; Incorrect line height for some fonts Clément Pit--Claudel
2015-05-22  7:32 ` Eli Zaretskii
2015-05-22 10:11   ` Oleh Krehel
2015-05-22 12:26     ` Eli Zaretskii
2015-05-22 12:49       ` Oleh Krehel
2015-05-22 13:13         ` Eli Zaretskii
2015-05-22 13:18         ` Eli Zaretskii
2015-05-22 13:03       ` Eli Zaretskii
2015-05-22 13:15         ` Oleh Krehel
2015-05-22 13:55           ` Eli Zaretskii
2015-05-22 13:54             ` Oleh Krehel
2015-05-22 14:07               ` Eli Zaretskii
2015-05-22 14:20                 ` Oleh Krehel
2015-05-22 14:49                   ` Eli Zaretskii
2015-05-22 15:03                     ` Oleh Krehel
2015-05-22 15:39                       ` Eli Zaretskii
2015-05-22 16:05                         ` Oleh Krehel
2015-05-22 16:14                           ` Eli Zaretskii
2015-05-22 16:15                             ` Oleh Krehel
2015-05-22 16:32                               ` Eli Zaretskii
2015-05-22 16:33                                 ` Oleh Krehel
2015-05-22 16:54                                   ` Oleh Krehel
2015-05-22 17:15                                     ` Andreas Schwab
2015-05-22 17:40                                       ` Oleh Krehel
2015-05-22 18:18                                     ` Eli Zaretskii
2015-05-22 18:18                                       ` Oleh Krehel
2015-05-22 18:43                                         ` Eli Zaretskii
2015-05-22 18:53                                           ` Oleh Krehel
2015-05-22 19:05                                             ` Clément Pit--Claudel
2015-05-22 19:27                                             ` Eli Zaretskii
2015-05-22 19:09                                           ` Clément Pit--Claudel
2015-05-22 19:37                                             ` Eli Zaretskii
2015-05-22 20:08                                       ` Oleh Krehel
2015-05-22 22:43                                         ` Stefan Monnier
2015-05-22 23:55                                           ` Clément Pit--Claudel
2015-05-23  7:24                                             ` Eli Zaretskii
2015-05-24  8:20                                               ` Clément Pit--Claudel
2015-05-24  9:36                                                 ` Eli Zaretskii
2015-05-23  7:20                                           ` Eli Zaretskii
2015-05-23 13:27                                             ` Stefan Monnier
2015-05-23 13:54                                               ` Eli Zaretskii
2015-05-23  7:10                                         ` Eli Zaretskii
2015-05-23  7:47                                           ` YAMAMOTO Mitsuharu
2015-05-23  8:26                                             ` Eli Zaretskii
2015-05-23  9:56                                               ` Oleh Krehel
2015-05-23 10:21                                                 ` Eli Zaretskii
2015-05-23 10:56                                                   ` Oleh Krehel
2015-05-25 10:32                                             ` Rasmus
2015-05-25 13:24                                               ` Drew Adams
2015-05-25 14:39                                                 ` Eli Zaretskii
2015-05-22 18:15                                   ` Eli Zaretskii
2015-05-22 18:57                                     ` Clément Pit--Claudel
2015-05-22 19:15                                       ` Eli Zaretskii
2015-05-22 21:49                                         ` Werner LEMBERG
2015-05-23  6:52                                           ` Eli Zaretskii
2015-05-23  9:50                                             ` Werner LEMBERG
2015-05-23  9:57                                               ` Werner LEMBERG [this message]
2015-05-23 10:31                                               ` Eli Zaretskii
2015-05-23 11:45                                                 ` Werner LEMBERG
2015-05-24  8:20                                           ` Clément Pit--Claudel
2015-05-24  9:29                                             ` Eli Zaretskii
2015-05-24  9:32                                               ` Werner LEMBERG
2015-05-24  9:48                                                 ` Eli Zaretskii
2015-05-24 10:06                                                   ` Eli Zaretskii
2015-05-24 10:29                                                     ` Eli Zaretskii
2015-05-27 15:20                                                     ` Eli Zaretskii
2015-05-29  8:20                                                       ` Eli Zaretskii
2015-05-29  8:35                                                         ` Clément Pit--Claudel
2015-05-29  9:30                                                           ` Oleh Krehel
2015-05-29 10:23                                                             ` Eli Zaretskii
2015-05-29 10:38                                                               ` Oleh Krehel
2015-05-29 14:49                                                                 ` Stefan Monnier
2015-05-29 14:49                                                                   ` Oleh Krehel
2015-05-29 18:17                                                                     ` Eli Zaretskii
2015-05-29 13:15                                                             ` Eli Zaretskii
2015-05-29 13:16                                                               ` Oleh Krehel
2015-05-29 18:18                                                                 ` Eli Zaretskii
2015-05-30  9:40                                                                 ` Eli Zaretskii
2015-05-30  5:21                                                               ` Clément Pit--Claudel
2015-05-30  9:42                                                                 ` Eli Zaretskii
2015-05-30 13:00                                                                   ` Oleh Krehel
2015-05-30 14:20                                                                     ` Eli Zaretskii
2015-05-30 14:32                                                                       ` Oleh Krehel
2015-05-30 16:28                                                                         ` Eli Zaretskii
2015-05-30 16:59                                                                           ` Oleh Krehel
2015-05-30 18:35                                                                             ` Eli Zaretskii
2015-05-30 18:57                                                                               ` Oleh Krehel
2015-05-30 19:23                                                                                 ` Eli Zaretskii
2015-05-30 19:26                                                                                   ` Oleh Krehel
2015-05-30 19:52                                                                                     ` Eli Zaretskii
2015-05-31 14:48                                                                                       ` Eli Zaretskii
2015-06-01 10:54                                                                                         ` Oleh Krehel
2015-06-01 14:49                                                                                           ` Eli Zaretskii
2015-06-06 13:14                                                                                             ` Eli Zaretskii
2015-05-30 18:58                                                                   ` Clément Pit--Claudel
2015-05-30 19:25                                                                     ` Eli Zaretskii
2015-06-03  9:44                                                     ` Werner LEMBERG
2015-06-03 14:53                                                       ` Eli Zaretskii
2015-05-22 19:03                                     ` Clément Pit--Claudel
2015-05-22 19:35                                       ` Eli Zaretskii
2015-05-22 20:25                                         ` Clément Pit--Claudel
2015-05-23  7:12                                           ` Eli Zaretskii
2015-05-24  8:20                                             ` Clément Pit--Claudel
2015-05-24  9:31                                               ` Eli Zaretskii
2015-05-23  8:19                                           ` Eli Zaretskii
2015-05-22 15:41                       ` Andreas Schwab
2015-05-22 15:05                     ` Eli Zaretskii
2015-05-22 15:27                     ` Stefan Monnier
2015-05-22 15:42                       ` Eli Zaretskii
2015-05-22 13:21         ` Andreas Schwab
2015-05-24  8:20   ` Clément Pit--Claudel
2015-05-24  9:32     ` Eli Zaretskii
2015-05-22 15:16 ` Rasmus
     [not found] <<555E9C2E.8040008@live.com>
     [not found] ` <<83wq004x2w.fsf@gnu.org>
     [not found]   ` <<83twv44vd3.fsf@gnu.org>
     [not found]     ` <<87egm87ny6.fsf@gmail.com>
     [not found]       ` <<83oalc4syu.fsf@gnu.org>
     [not found]         ` <<87617k7m5u.fsf@gmail.com>
     [not found]           ` <<83mw0w4seb.fsf@gnu.org>
     [not found]             ` <<87zj4w66ds.fsf@gmail.com>
     [not found]               ` <<83lhgg4qhf.fsf@gnu.org>
     [not found]                 ` <<87iobk64e6.fsf@gmail.com>
     [not found]                   ` <<83h9r44o63.fsf@gnu.org>
     [not found]                     ` <<87pp5sy4vu.fsf@gmail.com>
     [not found]                       ` <<83egm84mj3.fsf@gnu.org>
     [not found]                         ` <<87617k6127.fsf@gmail.com>
     [not found]                           ` <<83d21s4lpx.fsf@gnu.org>
     [not found]                             ` <<87twv44lnc.fsf@gmail.com>
     [not found]                               ` <<87egm84kp2.fsf@gmail.com>
     [not found]                                 ` <<83a8ww4grx.fsf@gnu.org>
     [not found]                                   ` <<87382oml31.fsf@gmail.com>
     [not found]                                     ` <<83k2vz3h2p.fsf@gnu.org>
     [not found]                                       ` <<wlpp5rivkj.wl%mituharu@math.s.chiba-u.ac.jp>
     [not found]                                         ` <<87oal954mc.fsf@gmx.us>
     [not found]                                           ` <<b054a996-dd2e-4436-80f2-93cc5b2d1cb9@default>
     [not found]                                             ` <<83oal8zpp8.fsf@gnu.org>
2015-05-25 15:39                                               ` Drew Adams

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.gnu.org/software/emacs/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20150523.115731.197331942.wl@gnu.org \
    --to=wl@gnu.org \
    --cc=20628@debbugs.gnu.org \
    --cc=clement.pitclaudel@live.com \
    --cc=eliz@gnu.org \
    --cc=ohwoeowho@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).