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Re: tree widget
From: |
David PONCE |
Subject: |
Re: tree widget |
Date: |
Thu, 29 Apr 2004 18:06:00 +0200 (CEST) |
[...]
> How do you think including tree-widget developed by David PONCE
> in emacs official distribution?
Hi All,
I received, and will shortly send back the signed paper
allowing to include tree-widget in the GNU Emacs distribution. As I
got write access to CVS, I should be able to check it in myself.
In order to do so, I would like some advice about the following
points.
First, I suppose that tree-widget.el should go into the main lisp
directory?
The next point looks more promizing ;-)
tree-widget can use image themes to display nice-looking trees. For
now, I created two graphical themes: a general purpose "default"
theme, and a file system oriented "folder" theme. Each theme contains
a set of images with predefined names that represent the different
parts of the tree to draw. When an image is not found in a particular
theme, the one in the "default" theme is used, so it is easy to create
a new theme by overriding only certain images.
>From an implementation point of view, a theme is a subdirectory in a
main theme directory:
tree-widget-themes/
default/
<default-theme-images>
folder/
<folder-theme-images>
Choosing a theme, is simply to give the name of the corresponding
subdirectory.
The main theme directory is customizable, it can be an absolute name,
or the name of a subdirectory located respectively in the `load-path'
or in the `data-directory'. By default, tree-widget search for a
"tree-widget-themes" subdirectory.
My question is where to install the theme directory? In the lisp
directory (I am not convinced this is the right place), or in the
`data-directory' ("./etc"), which seems a better choice.
It is not clear to me where images (and other data files) specific to a
package should be installed. To compare, in XEmacs things look
better: each package has its own data directory where you can put
images and other things. A `locate-data-directory' function is
provided for packages to easily retrieve their data directory. For
example tree-widget uses (locate-data-directory "tree-widget").
Perhaps it could be worth having a similar organization in "etc", that
is a sub-directory for each package that needs one for its data files.
This way the lisp directory would remain clean (only Elisp).
For example, there could be a "etc/tree-widget" directory where
tree-widget could search for the "built-in" themes. It is easily to
use its own themes via a customized theme directory added to the
`load-path'.
I hope my explanations were clear enough. Thank you so much for any
advice.
Regards.
David
~/{arch} causes an error in find-file, Masatake YAMATO, 2004/04/12
Re: tree widget, David PONCE, 2004/04/14
Re: tree widget,
David PONCE <=
Re: tree widget, David PONCE, 2004/04/30