From: David Kastrup <dak@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: Several suggestions for image support
Date: 21 Apr 2004 10:51:34 +0200 [thread overview]
Message-ID: <x5pta1u31l.fsf@lola.goethe.zz> (raw)
In-Reply-To: <m3llkpzlof.fsf@kfs-l.imdomain.dk>
storm@cua.dk (Kim F. Storm) writes:
> David Kastrup <dak@gnu.org> writes:
>
> > storm@cua.dk (Kim F. Storm) writes:
> >
> > > David Kastrup <dak@gnu.org> writes:
> > >
> > > > PNG images support transparency. Emacs can't make use of it. You can
> > > > only have Emacs declare a particular color as transparent. This is
> > > > dissatisfactory. It should tell the PNG decoding routines Emacs'
> > > > background color for the purpose of transparency.
> > > >
> > > > I would find it important if an image specifier could restrict the
> > > > displayed portion of an image.
> > >
> > > I have just implemented image slicing via a new slice property:
> > >
> > > display ((slice X Y WIDTH HEIGHT) (image ...))
> >
> > Does that imply that slicing is not only applicable to images?
>
> Currently it only applies to images. It can be extended to other
> objects as well, but I don't plan to do that myself.
Ok, here is the next problem I see: assume that I have the input in
preview-latex:
\begin{smallmatrix} 1&2\\ 3&4 \end{smallmatrix}
This will produce a single image split into 4 slices that I want to
have arranged
12
34
This stuff we will split into 4 overlays covering
\begin{smallmatrix} 1&
2\\
3&
4 \end{smallmatrix}
Now here come the somewhat ugly things: in order to have this
composition arranged properly, the first overlay will also have to
contain a before-string of "\n", and the second and fourth overlay
will contain an after-string of "\n". Cursor up/down will not produce
any sensible results.
Ok, I mean with preview-latex the solution is not too bad: require the
source to be formatted appropriately, or the image does not get
sliced, period. Namely, have a newline after every row and only a
constant non-printing fillprefix before each row (as a requirement for
slicing). And better use align-current to align all & signs
(optionally, will make cursor movement nicer). If we place those
requirements on source formatting, we won't be needing any
before-string and after-string, and things get slightly more sane.
So I think we might get along without more heavyweight support here
for now.
--
David Kastrup, Kriemhildstr. 15, 44793 Bochum
next prev parent reply other threads:[~2004-04-21 8:51 UTC|newest]
Thread overview: 95+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-16 0:21 Several suggestions for image support David Kastrup
2004-04-16 9:29 ` YAMAMOTO Mitsuharu
2004-04-16 14:02 ` Kim F. Storm
2004-04-16 12:50 ` Jason Rumney
2004-04-16 16:59 ` Kim F. Storm
2004-04-16 15:18 ` Jason Rumney
2004-04-16 10:22 ` Kim F. Storm
2004-04-16 9:09 ` Jason Rumney
2004-04-16 10:06 ` David Kastrup
2004-04-16 12:38 ` Kim F. Storm
2004-04-16 11:09 ` Jason Rumney
2004-04-16 11:34 ` David Kastrup
2004-04-16 12:29 ` Jason Rumney
2004-04-16 12:56 ` David Kastrup
2004-04-16 17:08 ` Kim F. Storm
2004-04-16 13:39 ` Stefan Monnier
2004-04-16 13:49 ` David Kastrup
2004-04-17 7:16 ` Richard Stallman
2004-04-17 13:02 ` Werner LEMBERG
2004-04-17 19:24 ` David Kastrup
2004-04-17 18:03 ` David Kastrup
2004-04-18 21:30 ` Kim F. Storm
2004-04-19 1:51 ` Stefan Monnier
2004-04-19 7:57 ` David Kastrup
2004-04-19 10:34 ` Kim F. Storm
2004-04-19 14:29 ` Stefan Monnier
2004-04-19 15:17 ` David Kastrup
2004-04-19 15:37 ` Stefan Monnier
2004-04-19 15:56 ` Kim F. Storm
2004-04-19 14:15 ` David Kastrup
2004-04-19 21:59 ` Kim F. Storm
2004-04-21 0:53 ` Kim F. Storm
2004-04-21 1:08 ` Kim F. Storm
2004-04-20 23:31 ` David Kastrup
2004-04-21 3:04 ` Piet van Oostrum
2004-04-22 0:43 ` Kim F. Storm
2004-04-22 1:18 ` YAMAMOTO Mitsuharu
2004-04-22 22:03 ` Piet van Oostrum
2004-04-23 4:02 ` YAMAMOTO Mitsuharu
2004-04-24 14:48 ` Piet van Oostrum
2004-04-21 10:10 ` Kim F. Storm
2004-04-21 8:51 ` David Kastrup [this message]
2004-04-21 12:51 ` Kim F. Storm
2004-04-22 17:40 ` Richard Stallman
2004-04-22 18:17 ` David Kastrup
2004-04-24 14:26 ` Richard Stallman
2004-04-22 23:53 ` Kim F. Storm
2004-04-22 23:02 ` David Kastrup
2004-04-23 12:36 ` Kim F. Storm
2004-04-23 15:02 ` Stefan Monnier
2004-04-23 15:05 ` David Kastrup
2004-04-23 0:33 ` Kenichi Handa
2004-04-23 0:51 ` David Kastrup
2004-04-23 12:58 ` Kenichi Handa
2004-04-23 14:53 ` David Kastrup
2004-04-24 14:27 ` Richard Stallman
2004-04-24 15:16 ` David Kastrup
2004-04-25 1:56 ` Kim F. Storm
2004-04-25 2:06 ` David Kastrup
2004-04-26 9:38 ` Kim F. Storm
2004-04-27 0:34 ` Kim F. Storm
2004-04-26 22:50 ` David Kastrup
2004-04-27 1:30 ` Miles Bader
2004-04-27 9:30 ` Kim F. Storm
2004-04-27 13:22 ` David Kastrup
2004-04-27 14:00 ` David Kastrup
2004-04-28 10:12 ` Richard Stallman
2004-04-28 10:58 ` David Kastrup
2004-04-29 0:29 ` Kim F. Storm
2004-04-28 22:52 ` David Kastrup
2004-04-29 13:31 ` Richard Stallman
2004-04-29 2:06 ` Kenichi Handa
2004-04-29 10:00 ` Kim F. Storm
2004-04-30 1:54 ` Kenichi Handa
2004-04-29 2:20 ` Kenichi Handa
2004-04-25 18:09 ` Richard Stallman
2004-04-29 0:17 ` Kim F. Storm
2004-04-28 23:02 ` David Kastrup
2004-04-29 9:51 ` Kim F. Storm
2004-04-29 8:08 ` David Kastrup
2004-04-29 11:24 ` Kim F. Storm
2004-04-30 1:07 ` Kim F. Storm
2004-04-30 11:31 ` David Kastrup
2004-04-30 14:21 ` Kim F. Storm
2004-04-30 13:30 ` David Kastrup
2004-04-30 13:49 ` preview-latex in Emacs (was: Several suggestions for image support) Stefan Monnier
2004-05-01 9:44 ` Several suggestions for image support Richard Stallman
2004-05-01 19:56 ` Kim F. Storm
2004-05-02 19:52 ` Richard Stallman
2004-05-03 9:19 ` David Kastrup
2004-04-30 9:02 ` Richard Stallman
2004-04-30 11:27 ` David Kastrup
2004-04-30 14:19 ` Kim F. Storm
[not found] ` <E1BGiB8-00087H-Tz@fencepost.gnu.org>
[not found] ` <x5brljkgk5.fsf@lola.goethe.zz>
2004-04-22 23:32 ` Kim F. Storm
2004-04-22 21:50 ` David Kastrup
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