1 ;;; riece-icon.el --- display icons in IRC buffers
2 ;; Copyright (C) 1998-2003 Daiki Ueno
4 ;; Author: Daiki Ueno <ueno@unixuser.org>
6 ;; Keywords: IRC, riece
8 ;; This file is part of Riece.
10 ;; This program is free software; you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 2, or (at your option)
15 ;; This program is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs; see the file COPYING. If not, write to the
22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 ;; Boston, MA 02111-1307, USA.
27 ;; NOTE: This is an add-on module for Riece.
31 (require 'riece-globals)
32 (require 'riece-signal)
34 (defvar riece-channel-list-icons
36 static char * blank_xpm[] = {
52 static char * balloon_xpm[] = {
70 static char * check_xpm[] = {
88 static char * active_xpm[] = {
106 (defvar riece-user-list-icons
108 static char * blank_xpm[] = {
124 static char * spiral_xpm[] = {
142 static char * cross_xpm[] = {
160 (defvar riece-pointer-icon
162 static char * a_xpm[] = {
184 (defvar riece-icon-enabled nil)
186 (defconst riece-icon-description
187 "Display icons in IRC buffers.")
189 (defun riece-icon-available-p ()
190 (if (featurep 'xemacs)
192 (if (fboundp 'image-type-available-p)
193 (image-type-available-p 'xpm))))
196 (if (featurep 'xemacs)
197 (defun riece-icon-make-image (data string)
198 (make-glyph (list (vector 'xpm :data data)
199 (vector 'string :data string))))
200 (defun riece-icon-make-image (data string)
201 (create-image data 'xpm t :ascent 'center))))
203 (defun riece-icon-make-images (alist)
204 (let ((pointer (setq alist (copy-alist alist))))
206 (setcdr (car pointer)
207 (riece-icon-make-image (cdr (car pointer)) (car (car pointer))))
208 (setq pointer (cdr pointer)))
212 (if (featurep 'xemacs)
213 (defun riece-icon-add-image-region (image start end)
215 (lambda (extent ignore)
216 (if (or (extent-property extent 'riece-icon-user-list-extent)
217 (extent-property extent 'riece-icon-user-list-annotation))
218 (delete-extent extent)))
219 (current-buffer) start end)
220 (let ((extent (make-extent start end))
221 (annotation (make-annotation image end 'text)))
222 (set-extent-property extent 'end-open t)
223 (set-extent-property extent 'start-open t)
224 (set-extent-property extent 'invisible t)
225 (set-extent-property extent 'intangible t)
226 (set-extent-property annotation
227 'riece-icon-user-list-extent extent)
228 (set-extent-property extent
229 'riece-icon-user-list-annotation annotation)))
230 (defun riece-icon-add-image-region (image start end)
231 (let ((inhibit-read-only t)
233 (add-text-properties start end
236 'rear-nonsticky (list 'display)))))))
238 (defun riece-icon-update-user-list-buffer ()
239 (if riece-icon-enabled
240 (let ((images (riece-icon-make-images riece-user-list-icons)))
242 (goto-char (point-min))
243 (while (re-search-forward "^[ @+]" nil t)
244 (riece-icon-add-image-region
245 (cdr (assoc (match-string 0) images))
246 (1- (point)) (point)))))))
248 (defun riece-icon-update-channel-list-buffer ()
249 (if riece-icon-enabled
250 (let ((images (riece-icon-make-images riece-channel-list-icons)))
252 (goto-char (point-min))
253 (while (re-search-forward "^ ?[0-9]+:\\([ !+*]\\)" nil t)
254 (riece-icon-add-image-region
255 (cdr (assoc (match-string 1) images))
256 (match-beginning 1) (match-end 1)))))))
259 (if (featurep 'xemacs)
261 (defvar riece-icon-xemacs-modeline-left-extent
262 (copy-extent modeline-buffer-id-left-extent))
264 (defvar riece-icon-xemacs-modeline-right-extent
265 (copy-extent modeline-buffer-id-right-extent))
267 (defun riece-icon-modeline-buffer-identification (line)
268 "Decorate 1st element of `mode-line-buffer-identification' LINE.
269 Modify whole identification by side effect."
270 (let ((id (car line)) chopped)
271 (if (and (stringp id) (string-match "^Riece:" id))
273 (setq chopped (substring id 0 (match-end 0))
274 id (substring id (match-end 0)))
281 (list (vector 'xpm :data
282 riece-pointer-icon)))
283 (list (vector 'string :data chopped))))))
284 (set-glyph-face glyph 'modeline-buffer-id)
285 (cons riece-icon-xemacs-modeline-left-extent glyph))
286 (cons riece-icon-xemacs-modeline-right-extent id))
292 (defun riece-icon-modeline-buffer-identification (line)
293 "Decorate 1st element of `mode-line-buffer-identification' LINE.
294 Modify whole identification by side effect."
295 (let ((id (copy-sequence (car line)))
297 (if (image-type-available-p 'xpm)
298 (create-image riece-pointer-icon 'xpm t
301 (stringp id) (string-match "^Riece:" id))
302 (add-text-properties 0 (length id)
304 'rear-nonsticky (list 'display))
309 (defalias 'riece-icon-modeline-buffer-identification 'identity)))))
311 (defun riece-icon-user-list-mode-hook ()
312 (if (riece-icon-available-p)
313 (add-hook 'riece-update-buffer-functions
314 'riece-icon-update-user-list-buffer t t)))
316 (defun riece-icon-channel-list-mode-hook ()
317 (if (riece-icon-available-p)
318 (add-hook 'riece-update-buffer-functions
319 'riece-icon-update-channel-list-buffer t t)))
321 (defvar riece-icon-original-mode-line-buffer-identification nil)
323 (defun riece-icon-insinuate ()
324 (setq riece-icon-original-mode-line-buffer-identification
325 (symbol-function 'riece-mode-line-buffer-identification))
326 (defalias 'riece-mode-line-buffer-identification
327 #'riece-icon-modeline-buffer-identification)
328 (add-hook 'riece-user-list-mode-hook
329 'riece-icon-user-list-mode-hook)
330 (add-hook 'riece-channel-list-mode-hook
331 'riece-icon-channel-list-mode-hook))
333 (defun riece-icon-uninstall ()
334 (fset 'riece-mode-line-buffer-identification
335 riece-icon-original-mode-line-buffer-identification)
337 (set-buffer riece-user-list-buffer)
338 (remove-hook 'riece-update-buffer-functions
339 'riece-icon-update-user-list-buffer)
340 (set-buffer riece-channel-list-buffer)
341 (remove-hook 'riece-update-buffer-functions
342 'riece-icon-update-user-list-buffer))
343 (remove-hook 'riece-user-list-mode-hook
344 'riece-icon-user-list-mode-hook)
345 (remove-hook 'riece-channel-list-mode-hook
346 'riece-icon-channel-list-mode-hook))
348 (defun riece-icon-enable ()
349 (setq riece-icon-enabled t)
350 (if riece-current-channel
351 (riece-emit-signal 'user-list-changed riece-current-channel))
352 (riece-emit-signal 'channel-list-changed))
354 (defun riece-icon-disable ()
355 (setq riece-icon-enabled nil)
356 (if riece-current-channel
357 (riece-emit-signal 'user-list-changed riece-current-channel))
358 (riece-emit-signal 'channel-list-changed))
360 (provide 'riece-icon)
362 ;;; riece-icon.el ends here