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Node:Point and click, Previous:Bar check, Up:Music entry
Point and click
Point and click lets you find notes in the input by clicking on them in the Xdvi window. This makes it very easy to find input that causes some error in the sheet music.
To use it, you need the following software
Installation
- plain Xdvi version 22.36 or newer.
Note that most TeX distributions ship with xdvik, which is a
different and less well maintained program. To find out which xdvi you
are running, try xdvi --version or xdvi.bin --version.
- emacs
Note that most TeX distributions ship with xdvik, which is a
different and less well maintained program. To find out which xdvi you
are running, try xdvi --version or xdvi.bin --version.
Xdvi must be configured to find the TeX fonts and music fonts. Refer to the Xdvi documentation for more information.
Using it
Add one of these lines to the top of your .ly file. The first one is for
line location only. The second one is more convenient, but requires
patching emacsclient and server.el.
#(set! point-and-click line-location)
In the emacs startup file (usually ~/.emacs), add the following
(server-start)
Make sure that the environment variable XEDITOR is set
to
emacsclient --no-wait +%l %fThe second one, that also specifies the column, only works if you have patched your emacsclient and server, and have compiled your
.ly
file using the line-column-location setting.
When viewing, control-mousebutton 1 will take you to the originating
spot in the .ly file. Control-mousebutton 2 will show all
clickable boxes.
Column location
If you want emacs to jump to the exact spot (and not just the line) on a
click, you must enable column positioning. To do so, you need to patch
emacsclient. Apply emacsclient.patch (included with the source
package) to emacsclient.c and server.el from the emacs
source code. Recompile and stick the recompiled emacsclient into a bin
directory, and put server.el into a elisp directory
(e.g. ~/usr/share/emacs/). Add the following to your .emacs
init file, before invoking server-start.
(setq load-path (cons "~/usr/share/emacs" load-path))
Set XEDITOR to emacsclient --no-wait +%l:%c %f
At the top of the ly file, replace the set! line with the
following line
#(set! point-and-click line-column-location)
BUGS
When you convert the TeX file to PostScript using dvips, it
will complain about not finding src:X:Y files. Those complaints
are harmless, and can be ignored.
When using line-column-location, the cursor will be one off; it
will not jump to the exact note that you clicked, but to the next one.
[FIXME]
Please send GNU LilyPond questions and comments to lilypond-user@gnu.org.
Please send comments on these web pages to lilypond@packages.debian.org
Copyright (c) 1997--2001 Han-Wen Nienhuys and Jan Nieuwenhuizen.
Verbatim copying and distribution of this entire article is permitted in any medium, provided this notice is preserved.