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Subject: bug#21932: 24.3.1; tabulated-list-mode minor bugs and feature requests
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From: Ken Raeburn <raeburn@HIDDEN>
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Date: Mon, 16 Nov 2015 03:14:39 -0500
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Tabulated list mode is quite a nice helper for viewing information. =
I=E2=80=99ve used it to throw together various simple modes for =
debugging other Emacs code or for work =E2=80=94 listing Emacs timers, =
listing Emacs frames and which displays they=E2=80=99re on, listing my =
Perforce workspaces with descriptions.
In using it, I have run across a few minor issues, and have a few =
enhancements I=E2=80=99d like to see.
1) Tabulated list mode doesn=E2=80=99t line the columns up properly if =
you use C-x C=E2=80=94 or C-x C-+ to alter the text size. The columns =
are not lined up consistently, though in the mode I=E2=80=99m writing =
right now, some of them do seem to stay lined up with the headers if I =
shrink the text.
2) When changing the text size, the text of the header line is =
unchanged. If this is intentional, then the number of characters in =
each column should be adjusted up or down to compensate, so that entry =
columns aren=E2=80=99t too wide, and aren=E2=80=99t truncated to a much =
narrower width than necessary. I would guess it=E2=80=99s accidental, =
though.
3) Tabulated list mode doesn=E2=80=99t line the columns up properly if =
you use variable-pitch-mode. This one is hard, I=E2=80=99m sure, =
because the same buffer could simultaneously be displayed on multiple =
displays that support different fonts, and on terminals that don=E2=80=99t=
support anything but one fixed-width font. If we don=E2=80=99t =
truncate each string to the shortest length useable across all frames =
displaying the buffer based on font metrics and the specific text to be =
displayed, which would probably look kind of ugly (=E2=80=A6but might =
not?), then I think we need the display engine to make the choice where =
to truncate rather than the Lisp code.
4) On most graphical displays it should be capable of using the Unicode =
ellipsis code point U+2026 instead of taking up three columns with dots; =
that would give us back two columns of text on such displays. Again, =
this would be potentially displaying different amounts of text, as well =
as different ellipses, on different displays.
5) Adjustable column widths: Many table-based GUIs I=E2=80=99ve seen let =
the user grab the dividing line between headers and drag it left or =
right to alter a field=E2=80=99s width, sometimes with limits to how =
wide or narrow the field is allowed to be. It wouldn=E2=80=99t work for =
every case, but when there is a padding space between column headers, =
perhaps it can be given mouse bindings similar to the way =
mouse-drag-vertical-line works.
Ken=
Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Mailer: MIME-tools 5.503 (Entity 5.503) Content-Type: text/plain; charset=utf-8 X-Loop: help-debbugs@HIDDEN From: help-debbugs@HIDDEN (GNU bug Tracking System) To: Ken Raeburn <raeburn@HIDDEN> Subject: bug#21932: Acknowledgement (24.3.1; tabulated-list-mode minor bugs and feature requests) Message-ID: <handler.21932.B.144766169216779.ack <at> debbugs.gnu.org> References: <4E4694C1-5FE9-4E04-8859-746413B315D9@HIDDEN> X-Gnu-PR-Message: ack 21932 X-Gnu-PR-Package: emacs Reply-To: 21932 <at> debbugs.gnu.org Date: Mon, 16 Nov 2015 08:15:02 +0000 Thank you for filing a new bug report with debbugs.gnu.org. This is an automatically generated reply to let you know your message has been received. Your message is being forwarded to the package maintainers and other interested parties for their attention; they will reply in due course. Your message has been sent to the package maintainer(s): bug-gnu-emacs@HIDDEN If you wish to submit further information on this problem, please send it to 21932 <at> debbugs.gnu.org. Please do not send mail to help-debbugs@HIDDEN unless you wish to report a problem with the Bug-tracking system. --=20 21932: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D21932 GNU Bug Tracking System Contact help-debbugs@HIDDEN with problems
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