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emacs/README.org
2015-07-09 13:11:05 -04:00

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Org Mode

Rewrite of guide-key-mode for emacs.
* Install
Add which-key.el to your =load-path= and require. Something like
#+BEGIN_SRC emacs-lisp
(add-to-list 'load-path "path/to/which-key.el")
(require 'which-key)
(which-key-mode)
#+END_SRC
There are 3 choices of default configs for you to try (then customize to your
liking). The main choice is where you want the which-key buffer to display.
Screenshots of the default options are shown in the next sections.
In each case, we show as many key bindings as we can fit in the buffer within
the constraints. The constraints are determined by several factors, including
your emacs settings, the size of the current emacs frame, and the which-key
settings (which are configurable but not well documented at the moment).
By default which-key makes substitutions for text all with the aim of saving
space. The most noticeable are the "special keys" like SPC, TAB, RET, etc. This
can be turned off, but the default is to truncate these keys to one character
and display them using =:inverse-video= (flips foreground and background
colors). You can see the effect in the screenshots.
There are other substitution abilities included, which are quite flexible
(ability to use regexp for example). This makes which-key very customizable.
This functionality is targeting [[https://github.com/syl20bnr/spacemacs][spacemacs]].
** Minibuffer Option
Take over the minibuffer. Setup by default, but you can also use
#+BEGIN_SRC emacs-lisp
(which-key/setup-minibuffer)
#+END_SRC
[[./img/which-key-minibuffer.png]]
Note the maximum height of the minibuffer is controlled through the built-in
variable =max-mini-window-height=.
** Side Window Right Option
Popup side window on right. For defaults use
#+BEGIN_SRC emacs-lisp
(which-key/setup-side-window-right)
#+END_SRC
[[./img/which-key-right.png]]
** Side Window Bottom Option
Popup side window on bottom. For defaults use
#+BEGIN_SRC emacs-lisp
(which-key/setup-side-window-bottom)
#+END_SRC
[[./img/which-key-bottom.png]]
* Status/Goals
** Stability
- It's very much a work in progress, so expect weird things to happen from time
to time. That being said, the default configuration works well for me.
** Completed Goals
1. Use idle timers to trigger window popup instead of guide-key's constant
polling.
2. Remove popwin as a "hard" dependency, prefering built-in display commands
where possible.
3. Add support for replacement lists to modify key descriptions on the fly.
Currently you can replace in the key or description field using regexp, and
using a key sequence (like ="C-x 1"=) to fully replace the description (the
latter can target major modes, too).
** Incomplete and Planned
1. Come up with creative ways to fit more keys in buffer while still maintaining
nice alignment and formatting. Such as
1. Automatic text scaling
2. Paging functionality