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;;; jabber-muc-nick-coloring.el --- Add nick coloring abilyty to emacs-jabber
;; Copyright 2009, 2010, 2012, 2013 Terechkov Evgenii - evg@altlinux.org
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;;
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with this program; if not, write to the Free Software
;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
;;; Commentary:
;;; Code:
(eval-when-compile (require 'cl)) ;for ignore-errors
;; we need hexrgb-hsv-to-hex:
(eval-and-compile
(or (ignore-errors (require 'hexrgb))
;; jabber-fallback-lib/ from jabber/lisp/jabber-fallback-lib
(ignore-errors
(let ((load-path (cons (expand-file-name
"jabber-fallback-lib"
(file-name-directory (locate-library "jabber")))
load-path)))
(require 'hexrgb)))
(error
"hexrgb not found in `load-path' or jabber-fallback-lib/ directory.")))
;;;;##########################################################################
;;;; User Options, Variables
;;;;##########################################################################
(defcustom jabber-muc-participant-colors nil
"Alist of used colors. Format is (nick . color). Color may be
in #RGB or textual (like red or blue) notation. Colors will be
added in #RGB notation for unknown nicks."
:type '(alist :key-type string :value-type color)
:group 'jabber-chat)
(defcustom jabber-muc-colorize-local nil
"Colorize MUC messages from you."
:type 'boolean
:group 'jabber-chat)
(defcustom jabber-muc-colorize-foreign nil
"Colorize MUC messages not from you."
:type 'boolean
:group 'jabber-chat)
(defcustom jabber-muc-nick-saturation 1.0
"Default saturation for nick coloring."
:type 'float
:group 'jabber-chat)
(defcustom jabber-muc-nick-value 1.0
"Default value for nick coloring."
:type 'float
:group 'jabber-chat)
(defun jabber-muc-nick-gen-color (nick)
"Return good enough color from available pool"
(let ((hue (/ (mod (string-to-number (substring (md5 nick) 0 6) 16) 360) 360.0)))
(hexrgb-hsv-to-hex hue jabber-muc-nick-saturation jabber-muc-nick-value)))
(defun jabber-muc-nick-get-color (nick)
"Get NICKs color"
(let ((color (cdr (assoc nick jabber-muc-participant-colors))))
(if color
color
(progn
(unless jabber-muc-participant-colors )
(push (cons nick (jabber-muc-nick-gen-color nick)) jabber-muc-participant-colors)
(cdr (assoc nick jabber-muc-participant-colors))))))
(provide 'jabber-muc-nick-coloring)
;;; jabber-muc-nick-coloring.el ends here
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