X-Git-Url: https://cgit.sxemacs.org/?a=blobdiff_plain;f=lisp%2Fgnus-picon.el;h=3cc7c3701c59615a1eb3e4a97c70a28620d04788;hb=8339220cc25db3fbdab4367d6252e596bddd9cb1;hp=ec529eadcd3814a859675b864d011ca9b061cfb5;hpb=17b7a13f8745857496a1fbe961154aa541024c7a;p=gnus

diff --git a/lisp/gnus-picon.el b/lisp/gnus-picon.el
index ec529eadc..3cc7c3701 100644
--- a/lisp/gnus-picon.el
+++ b/lisp/gnus-picon.el
@@ -1,436 +1,316 @@
 ;;; gnus-picon.el --- displaying pretty icons in Gnus
-;; Copyright (C) 1996,97 Free Software Foundation, Inc.
 
-;; Author: Wes Hardaker <hardaker@ece.ucdavis.edu>
+;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+;;   2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+
+;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
 ;; Keywords: news xpm annotation glyph faces
 
 ;; This file is part of GNU Emacs.
 
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; GNU Emacs 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.
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
 
 ;; GNU Emacs 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
+;; 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 GNU Emacs; see the file COPYING.  If not, write to the
-;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
 
 ;;; Commentary:
 
+;; There are three picon types relevant to Gnus:
+;;
+;; Persons: person@subdomain.dom
+;;          users/dom/subdomain/person/face.gif
+;;          usenix/dom/subdomain/person/face.gif
+;;          misc/MISC/person/face.gif
+;; Domains: subdomain.dom
+;;          domain/dom/subdomain/unknown/face.gif
+;; Groups:  comp.lang.lisp
+;;          news/comp/lang/lisp/unknown/face.gif
+;;
+;; Original implementation by Wes Hardaker <hardaker@ece.ucdavis.edu>.
+;;
 ;;; Code:
 
-(require 'gnus)
-(require 'xpm)
-(require 'annotations)
-(require 'custom)
-(require 'gnus-art)
-(require 'gnus-win)
-
-(defgroup picons nil
-  "Show pictures of people, domains, and newsgroups (XEmacs).
-For this to work, you must add gnus-group-display-picons to the
-gnus-summary-display-hook or to the gnus-article-display-hook
-depending on what gnus-picons-display-where is set to.  You must
-also add gnus-article-display-picons to gnus-article-display-hook."
-  :group 'gnus-visual)
-
-(defcustom gnus-picons-buffer "*Icon Buffer*"
-  "Buffer name to display the icons in if gnus-picons-display-where is 'picons."
-  :type 'string
-  :group 'picons)
-
-(defcustom gnus-picons-display-where 'picons
-  "Where to display the group and article icons.
-Legal values are `article' and `picons'."
-  :type '(choice symbol string)
-  :group 'picons)
-
-(defcustom gnus-picons-database "/usr/local/faces"
-  "Defines the location of the faces database.
-For information on obtaining this database of pretty pictures, please
-see http://www.cs.indiana.edu/picons/ftp/index.html"
-  :type 'directory
-  :group 'picons)
-
-(defcustom gnus-picons-news-directory "news"
-  "Sub-directory of the faces database containing the icons for newsgroups."
-  :type 'string
-  :group 'picons)
-
-(defcustom gnus-picons-user-directories '("local" "users" "usenix" "misc")
-  "List of directories to search for user faces."
-  :type '(repeat string)
-  :group 'picons)
+;; For Emacs < 22.2.
+(eval-and-compile
+  (unless (fboundp 'declare-function) (defmacro declare-function (&rest r))))
 
-(defcustom gnus-picons-domain-directories '("domains")
-  "List of directories to search for domain faces.
-Some people may want to add \"unknown\" to this list."
-  :type '(repeat string)
-  :group 'picons)
+(eval-when-compile (require 'cl))
 
-(defcustom gnus-picons-refresh-before-display nil
-  "If non-nil, display the article buffer before computing the picons."
-  :type 'boolean
-  :group 'picons)
+(require 'gnus)
+(require 'gnus-art)
 
-(defcustom gnus-picons-x-face-file-name
-  (format "/tmp/picon-xface.%s.xbm" (user-login-name))
-  "The name of the file in which to store the converted X-face header."
-  :type 'string
-  :group 'picons)
+;;; User variables:
 
-(defcustom gnus-picons-convert-x-face (format "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | pbmtoxbm > %s" gnus-picons-x-face-file-name)
-  "Command to convert the x-face header into a xbm file."
-  :type 'string
-  :group 'picons)
+(defcustom gnus-picon-news-directories '("news")
+  "*List of directories to search for newsgroups faces."
+  :type '(repeat string)
+  :group 'gnus-picon)
 
-(defcustom gnus-picons-display-as-address t
-  "*If t display textual email addresses along with pictures."
-  :type 'boolean
-  :group 'picons)
-
-(defcustom gnus-picons-file-suffixes
-  (when (featurep 'x)
-    (let ((types (list "xbm")))
-      (when (featurep 'gif)
-	(push "gif" types))
-      (when (featurep 'xpm)
-	(push "xpm" types))
-      types))
-  "List of suffixes on picon file names to try."
+(defcustom gnus-picon-user-directories '("users" "usenix" "local" "misc")
+  "*List of directories to search for user faces."
   :type '(repeat string)
-  :group 'picons)
+  :group 'gnus-picon)
 
-(defcustom gnus-picons-display-article-move-p t
-  "*Whether to move point to first empty line when displaying picons.
-This has only an effect if `gnus-picons-display-where' has value `article'."
+(defcustom gnus-picon-domain-directories '("domains")
+  "*List of directories to search for domain faces.
+Some people may want to add \"unknown\" to this list."
+  :type '(repeat string)
+  :group 'gnus-picon)
+
+(defcustom gnus-picon-file-types
+  (let ((types (list "xbm")))
+    (when (gnus-image-type-available-p 'gif)
+      (push "gif" types))
+    (when (gnus-image-type-available-p 'xpm)
+      (push "xpm" types))
+    types)
+  "*List of suffixes on picon file names to try."
+  :type '(repeat string)
+  :group 'gnus-picon)
+
+(defcustom gnus-picon-style 'inline
+  "How should picons be displayed.
+If `inline', the textual representation is replaced.  If `right', picons are
+added right to the textual representation."
+  ;; FIXME: `right' needs improvement for XEmacs.
+  :type '(choice (const inline)
+		 (const right))
+  :group 'gnus-picon)
+
+(defcustom gnus-picon-inhibit-top-level-domains t
+  "If non-nil, don't piconify top-level domains.
+These are often not very interesting."
   :type 'boolean
-  :group 'picons)
-
-(defvar gnus-picons-map (make-sparse-keymap "gnus-picons-keys")
- "keymap to hide/show picon glyphs")
-
-(define-key gnus-picons-map [(button2)] 'gnus-picons-toggle-extent)
-
-;;; Internal variables.
-
-(defvar gnus-group-annotations nil
-  "List of annotations added/removed when selecting/exiting a group")
-(defvar gnus-article-annotations nil
-  "List of annotations added/removed when selecting an article")
-(defvar gnus-x-face-annotations nil
-  "List of annotations added/removed when selecting an article with an X-Face.")
-
-(defun gnus-picons-remove (symbol)
-  "Remove all annotations/processes in variable named SYMBOL.
-This function is careful to set it to nil before removing anything so that
-asynchronous process don't get crazy."
-  (let ((listitems (symbol-value symbol)))
-    (set symbol nil)
-    (while listitems
-      (let ((item (pop listitems)))
-	(cond ((annotationp item)
-	       (delete-annotation item))
-	      ((processp item)
-	       ;; kill the process, ignore any output.
-	       (set-process-sentinel item (function (lambda (p e))))
-	       (delete-process item)))))))
-
-(defun gnus-picons-remove-all ()
-  "Removes all picons from the Gnus display(s)."
+  :group 'gnus-picon)
+
+;;; Internal variables:
+
+(defvar gnus-picon-glyph-alist nil
+  "Picon glyphs cache.
+List of pairs (KEY . GLYPH) where KEY is either a filename or an URL.")
+(defvar gnus-picon-cache nil)
+
+;;; Functions:
+
+(defsubst gnus-picon-split-address (address)
+  (setq address (split-string address "@"))
+  (if (stringp (cadr address))
+      (cons (car address) (split-string (cadr address) "\\."))
+    (if (stringp (car address))
+	(split-string (car address) "\\."))))
+
+(defun gnus-picon-find-face (address directories &optional exact)
+  (let* ((address (gnus-picon-split-address address))
+	 (user (pop address))
+	 (faddress address)
+	 database directory result instance base)
+    (catch 'found
+      (dolist (database gnus-picon-databases)
+	(dolist (directory directories)
+	  (setq address faddress
+		base (expand-file-name directory database))
+	  (while address
+	    (when (setq result (gnus-picon-find-image
+				(concat base "/" (mapconcat 'downcase
+							    (reverse address)
+							    "/")
+					"/" (downcase user) "/")))
+	      (throw 'found result))
+	    (if exact
+		(setq address nil)
+	      (pop address)))
+	  ;; Kludge to search MISC as well.  But not in "news".
+	  (unless (string= directory "news")
+	    (when (setq result (gnus-picon-find-image
+				(concat base "/MISC/" user "/")))
+	      (throw 'found result))))))))
+
+(defun gnus-picon-find-image (directory)
+  (let ((types gnus-picon-file-types)
+	found type file)
+    (while (and (not found)
+		(setq type (pop types)))
+      (setq found (file-exists-p (setq file (concat directory "face." type)))))
+    (if found
+	file
+      nil)))
+
+(defun gnus-picon-insert-glyph (glyph category &optional nostring)
+  "Insert GLYPH into the buffer.
+GLYPH can be either a glyph or a string.  When NOSTRING, no textual
+replacement is added."
+  ;; Using NOSTRING prevents wrong BBDB entries with `gnus-picon-style' set to
+  ;; 'right.
+  (if (stringp glyph)
+      (insert glyph)
+    (gnus-add-wash-type category)
+    (gnus-add-image category (car glyph))
+    (gnus-put-image (car glyph) (unless nostring (cdr glyph)) category)))
+
+(defun gnus-picon-create-glyph (file)
+  (or (cdr (assoc file gnus-picon-glyph-alist))
+      (cdar (push (cons file (gnus-create-image
+			      file nil nil
+			      :color-symbols '(("None" . "white"))))
+		  gnus-picon-glyph-alist))))
+
+;;; Functions that does picon transformations:
+
+(declare-function image-size "image.c" (spec &optional pixels frame))
+
+(defun gnus-picon-transform-address (header category)
+  (gnus-with-article-headers
+   (let ((addresses
+	  (mail-header-parse-addresses
+	   ;; mail-header-parse-addresses does not work (reliably) on
+	   ;; decoded headers.
+	   (or
+	    (ignore-errors
+	     (mail-encode-encoded-word-string
+	      (or (mail-fetch-field header) "")))
+	    (mail-fetch-field header))))
+	 spec file point cache len)
+     (dolist (address addresses)
+       (setq address (car address))
+       (when (and (stringp address)
+		  (setq spec (gnus-picon-split-address address)))
+	 (if (setq cache (cdr (assoc address gnus-picon-cache)))
+	     (setq spec cache)
+	   (when (setq file (or (gnus-picon-find-face
+				 address gnus-picon-user-directories)
+				(gnus-picon-find-face
+				 (concat "unknown@"
+					 (mapconcat
+					  'identity (cdr spec) "."))
+				 gnus-picon-user-directories)))
+	     (setcar spec (cons (gnus-picon-create-glyph file)
+				(car spec))))
+
+	   (dotimes (i (- (length spec)
+			  (if gnus-picon-inhibit-top-level-domains
+			      2 1)))
+	     (when (setq file (gnus-picon-find-face
+			       (concat "unknown@"
+				       (mapconcat
+					'identity (nthcdr (1+ i) spec) "."))
+			       gnus-picon-domain-directories t))
+	       (setcar (nthcdr (1+ i) spec)
+		       (cons (gnus-picon-create-glyph file)
+			     (nth (1+ i) spec)))))
+	   (setq spec (nreverse spec))
+	   (push (cons address spec) gnus-picon-cache))
+
+	 (gnus-article-goto-header header)
+	 (mail-header-narrow-to-field)
+	 (case gnus-picon-style
+	       (right
+		(when (= (length addresses) 1)
+		  (setq len (apply '+ (mapcar (lambda (x)
+						(condition-case nil
+						    (car (image-size (car x)))
+						  (error 0))) spec)))
+		  (when (> len 0)
+		    (goto-char (point-at-eol))
+		    (insert (propertize
+			     " " 'display
+			     (cons 'space
+				   (list :align-to (- (window-width) 1 len))))))
+		  (goto-char (point-at-eol))
+		  (setq point (point-at-eol))
+		  (dolist (image spec)
+		    (unless (stringp image)
+		      (goto-char point)
+		      (gnus-picon-insert-glyph image category 'nostring)))))
+	       (inline
+		 (when (search-forward address nil t)
+		   (delete-region (match-beginning 0) (match-end 0))
+		   (setq point (point))
+		   (while spec
+		     (goto-char point)
+		     (if (> (length spec) 2)
+			 (insert ".")
+		       (if (= (length spec) 2)
+			   (insert "@")))
+		     (gnus-picon-insert-glyph (pop spec) category))))))))))
+
+(defun gnus-picon-transform-newsgroups (header)
   (interactive)
-  (gnus-picons-remove 'gnus-article-annotations)
-  (gnus-picons-remove 'gnus-group-annotations)
-  (gnus-picons-remove 'gnus-x-face-annotations)
-  (when (bufferp gnus-picons-buffer)
-    (kill-buffer gnus-picons-buffer)))
-
-(defun gnus-get-buffer-name (variable)
-  "Returns the buffer name associated with the contents of a variable."
-  (cond ((symbolp variable)
-         (let ((newvar (cdr (assq variable gnus-window-to-buffer))))
-           (cond ((symbolp newvar)
-                  (symbol-value newvar))
-                 ((stringp newvar) newvar))))
-        ((stringp variable)
-         variable)))
-
-(defun gnus-picons-prepare-for-annotations (annotations)
-  "Prepare picons buffer for puting annotations memorized in ANNOTATIONS.
-ANNOTATIONS should be a symbol naming a variable wich contains a list of
-annotations.  Sets buffer to `gnus-picons-display-where'."
-  ;; let drawing catch up
-  (when gnus-picons-refresh-before-display
-    (sit-for 0))
-  (set-buffer (get-buffer-create
-	       (gnus-get-buffer-name gnus-picons-display-where)))
-  (gnus-add-current-to-buffer-list)
-  (goto-char (point-min))
-  (if (and (eq gnus-picons-display-where 'article)
-	   gnus-picons-display-article-move-p)
-      (when (search-forward "\n\n" nil t)
-	(forward-line -1)))
-  (gnus-picons-remove annotations))
-
-(defun gnus-picons-article-display-x-face ()
-  "Display the x-face header bitmap in the 'gnus-picons-display-where buffer."
-  ;; delete any old ones.
-  ;; This is needed here because gnus-picons-display-x-face will not
-  ;; be called if there is no X-Face header
-  (gnus-picons-remove 'gnus-x-face-annotations)
-  ;; display the new one.
-  (let ((gnus-article-x-face-command 'gnus-picons-display-x-face))
-    (gnus-article-display-x-face)))
-
-(defun gnus-picons-x-face-sentinel (process event)
-  ;; don't call gnus-picons-prepare-for-annotations, it would reset
-  ;; gnus-x-face-annotations.
-  (set-buffer (get-buffer-create
-	       (gnus-get-buffer-name gnus-picons-display-where)))
-  (gnus-add-current-to-buffer-list)
-  (goto-char (point-min))
-  (if (and (eq gnus-picons-display-where 'article)
-	   gnus-picons-display-article-move-p)
-      (when (search-forward "\n\n" nil t)
-	(forward-line -1)))
-  ;; If the process is still in the list, insert this icon
-  (let ((myself (member process gnus-x-face-annotations)))
-    (when myself
-      (setcar myself
-	      (make-annotation gnus-picons-x-face-file-name nil 'text))
-      (delete-file gnus-picons-x-face-file-name))))
-
-(defun gnus-picons-display-x-face (beg end)
-  "Function to display the x-face header in the picons window.
-To use:  (setq gnus-article-x-face-command 'gnus-picons-display-x-face)"
+  (gnus-with-article-headers
+   (gnus-article-goto-header header)
+   (mail-header-narrow-to-field)
+   (let ((groups (message-tokenize-header (mail-fetch-field header)))
+	 spec file point)
+     (dolist (group groups)
+       (unless (setq spec (cdr (assoc group gnus-picon-cache)))
+	 (setq spec (nreverse (split-string group "[.]")))
+	 (dotimes (i (length spec))
+	   (when (setq file (gnus-picon-find-face
+			     (concat "unknown@"
+				     (mapconcat
+				      'identity (nthcdr i spec) "."))
+			     gnus-picon-news-directories t))
+	     (setcar (nthcdr i spec)
+		     (cons (gnus-picon-create-glyph file)
+			   (nth i spec)))))
+	 (push (cons group spec) gnus-picon-cache))
+       (when (search-forward group nil t)
+	 (delete-region (match-beginning 0) (match-end 0))
+	 (save-restriction
+	   (narrow-to-region (point) (point))
+	   (while spec
+	     (goto-char (point-min))
+	     (if (> (length spec) 1)
+		 (insert "."))
+	     (gnus-picon-insert-glyph (pop spec) 'newsgroups-picon))
+	   (goto-char (point-max))))))))
+
+;;; Commands:
+
+;; #### NOTE: the test for buffer-read-only is the same as in
+;; article-display-[x-]face. See the comment up there.
+
+;;;###autoload
+(defun gnus-treat-from-picon ()
+  "Display picons in the From header.
+If picons are already displayed, remove them."
   (interactive)
-  (if (featurep 'xface)
-      ;; Use builtin support
-      (let ((buf (current-buffer)))
-	(save-excursion
-	  (gnus-picons-prepare-for-annotations 'gnus-x-face-annotations)
-	  (setq gnus-x-face-annotations
-		(cons (make-annotation (concat "X-Face: "
-					       (buffer-substring beg end buf))
-				       nil 'text)
-		      gnus-x-face-annotations))))
-    ;; convert the x-face header to a .xbm file
-    (let* ((process-connection-type nil)
-	   (process (start-process "gnus-x-face" nil
-				   shell-file-name shell-command-switch
-				   gnus-picons-convert-x-face)))
-      (process-kill-without-query process)
-      (setq gnus-x-face-annotations (list process))
-      (set-process-sentinel process 'gnus-picons-x-face-sentinel)
-      (process-send-region process beg end)
-      (process-send-eof process))))
-
-(defun gnus-article-display-picons ()
-  "Display faces for an author and his/her domain in gnus-picons-display-where."
+  (let ((wash-picon-p buffer-read-only))
+    (gnus-with-article-buffer
+     (if (and wash-picon-p (memq 'from-picon gnus-article-wash-types))
+	 (gnus-delete-images 'from-picon)
+       (gnus-picon-transform-address "from" 'from-picon)))))
+
+;;;###autoload
+(defun gnus-treat-mail-picon ()
+  "Display picons in the Cc and To headers.
+If picons are already displayed, remove them."
   (interactive)
-  (let (from at-idx)
-    (when (and (featurep 'xpm)
-	       (or (not (fboundp 'device-type)) (equal (device-type) 'x))
-	       (setq from (mail-fetch-field "from"))
-	       (setq from (downcase
-			   (or (cadr (mail-extract-address-components from))
-			       "")))
-	       (or (setq at-idx (string-match "@" from))
-		   (setq at-idx (length from))))
-      (save-excursion
-	(let ((username (substring from 0 at-idx))
-	      (addrs (if (eq at-idx (length from))
-			 (if gnus-local-domain
-			     (message-tokenize-header gnus-local-domain ".")
-			   nil)
-		       (message-tokenize-header (substring from (1+ at-idx))
-						"."))))
-	  (gnus-picons-prepare-for-annotations 'gnus-article-annotations)
-	  (setq gnus-article-annotations
-		(nconc gnus-article-annotations
-		       ;; look for domain paths.
-		       (gnus-picons-display-pairs
-			(gnus-picons-lookup-pairs addrs
-					       gnus-picons-domain-directories)
-			(not (or gnus-picons-display-as-address
-				 gnus-article-annotations))
-			nil "." t)
-		       ;; add an '@' if displaying as address
-		       (if  (and gnus-picons-display-as-address addrs)
-			 (list (make-annotation "@" nil 'text nil nil nil t)))
-		       ;; then do user directories,
-		       (gnus-picons-display-picon-or-name
-			(gnus-picons-lookup-user (downcase username) addrs)
-			username nil t)))
-
-	  (add-hook 'gnus-summary-exit-hook 'gnus-picons-remove-all))))))
-
-(defun gnus-group-display-picons ()
-  "Display icons for the group in the gnus-picons-display-where buffer."
+  (let ((wash-picon-p buffer-read-only))
+    (gnus-with-article-buffer
+     (if (and wash-picon-p (memq 'mail-picon gnus-article-wash-types))
+	 (gnus-delete-images 'mail-picon)
+       (gnus-picon-transform-address "cc" 'mail-picon)
+       (gnus-picon-transform-address "to" 'mail-picon)))))
+
+;;;###autoload
+(defun gnus-treat-newsgroups-picon ()
+  "Display picons in the Newsgroups and Followup-To headers.
+If picons are already displayed, remove them."
   (interactive)
-  (when (and (featurep 'xpm)
-	     (or (not (fboundp 'device-type)) (equal (device-type) 'x)))
-    (save-excursion
-      (gnus-picons-prepare-for-annotations 'gnus-group-annotations)
-      (setq gnus-group-annotations
-	    (gnus-picons-display-pairs
-	     (gnus-picons-lookup-pairs (reverse (message-tokenize-header
-					      gnus-newsgroup-name "."))
-				    gnus-picons-news-directory)
-	     t nil "."))
-      (add-hook 'gnus-summary-exit-hook 'gnus-picons-remove-all))))
-
-(defun gnus-picons-make-path (dir subdirs)
-  "Make a directory name from a base DIR and a list of SUBDIRS.
-Returns a directory name build by concatenating DIR and all elements of
-SUBDIRS with \"/\" between elements."
-  (while subdirs
-    (setq dir (file-name-as-directory (concat dir (pop subdirs)))))
-  dir)
-
-(defsubst gnus-picons-try-suffixes (file)
-  (let ((suffixes gnus-picons-file-suffixes)
-	f)
-    (while (and suffixes
-		(not (file-exists-p (setq f (concat file (pop suffixes))))))
-      (setq f nil))
-    f))
-
-(defun gnus-picons-lookup (addrs dirs)
-  "Lookup the picon for ADDRS in databases DIRS.
-Returns the picon filename or NIL if none found."
-  (let (result)
-    (while (and dirs (null result))
-      (setq result
-	    (gnus-picons-try-suffixes
-	     (expand-file-name "face."
-			       (gnus-picons-make-path
-				(file-name-as-directory
-				 (concat
-				  (file-name-as-directory gnus-picons-database)
-				  (pop dirs)))
-				(reverse addrs))))))
-    result))
-
-(defun gnus-picons-lookup-user-internal (user domains)
-  (let ((dirs gnus-picons-user-directories)
-	picon)
-    (while (and dirs (null picon))
-      (let ((dir (list (pop dirs)))
-	    (domains domains))
-	(while (and domains (null picon))
-	  (setq picon (gnus-picons-lookup (cons user domains) dir))
-	  (pop domains))
-	;; Also make a try MISC subdir
-	(unless picon
-	  (setq picon (gnus-picons-lookup (list user "MISC") dir)))))
-
-    picon))
-
-(defun gnus-picons-lookup-user (user domains)
-  "Lookup the picon for USER at DOMAINS.
-USER is a string containing a name.
-DOMAINS is a list of strings from the fully qualified domain name."
-  (or (gnus-picons-lookup-user-internal user domains)
-      (gnus-picons-lookup-user-internal "unknown" domains)))
-
-(defun gnus-picons-lookup-pairs (domains directories)
-  "Lookup picons for DOMAINS and all its parents in DIRECTORIES.
-Returns a list of PAIRS whose CAR is the picon filename or NIL if
-none, and whose CDR is the corresponding element of DOMAINS."
-  (let (picons)
-    (while domains
-      (push (list (gnus-picons-lookup (cons "unknown" domains)
-				      (if (listp directories)
-					  directories
-					(list directories)))
-		  (pop domains))
-	    picons))
-    picons))
-
-(defun gnus-picons-display-picon-or-name (picon name &optional xface-p right-p)
-  (if picon
-      (gnus-picons-try-to-find-face picon xface-p name right-p)
-    (list (make-annotation name nil 'text nil nil nil right-p))))
-
-(defun gnus-picons-display-pairs (pairs &optional bar-p xface-p dot-p right-p)
-  "Display picons in list PAIRS."
-  (let ((bar (and bar-p (or gnus-picons-display-as-address
-			  (annotations-in-region (point)
-						 (min (point-max) (1+ (point)))
-						 (current-buffer)))))
-	(domain-p (and gnus-picons-display-as-address dot-p))
-	picons)
-    (while pairs
-      (let ((pair (pop pairs)))
-	(setq picons (nconc (if (and domain-p picons (not right-p))
-				(list (make-annotation
-				       dot-p nil 'text nil nil nil right-p)))
-			    (gnus-picons-display-picon-or-name (car pair)
-							       (cadr pair)
-							       xface-p
-							       right-p)
-			    (if (and domain-p pairs right-p)
-				(list (make-annotation
-				       dot-p nil 'text nil nil nil right-p)))
-			    (when (and bar domain-p)
-			      (setq bar nil)
-			      (gnus-picons-try-to-find-face
-			       (expand-file-name "bar.xbm"
-						 gnus-xmas-glyph-directory)
-			       nil nil t))
-			    picons))))
-    picons))
-
-(defvar gnus-picons-glyph-alist nil)
-
-(defun gnus-picons-try-to-find-face (path &optional xface-p part rightp)
-  "If PATH exists, display it as a bitmap.  Returns t if succeeded."
-  (let ((glyph (and (not xface-p)
-		    (cdr (assoc path gnus-picons-glyph-alist)))))
-    (when (or glyph (file-exists-p path))
-      (unless glyph
-	(setq glyph (make-glyph path))
-	(unless xface-p
-	  (push (cons path glyph) gnus-picons-glyph-alist))
-	(set-glyph-face glyph 'default))
-      (let ((new (make-annotation glyph (point) 'text nil nil nil rightp)))
-	(nconc
-	 (list new)
-	 (when (and (eq major-mode 'gnus-article-mode)
-		    (not gnus-picons-display-as-address)
-		    (not part))
-	   (list (make-annotation " " (point) 'text nil nil nil rightp)))
-	 (when (and part gnus-picons-display-as-address)
-	   (let ((txt (make-annotation part (point) 'text nil nil nil rightp)))
-	     (hide-annotation txt)
-	     (set-extent-property txt 'its-partner new)
-	     (set-extent-property txt 'keymap gnus-picons-map)
-	     (set-extent-property txt 'mouse-face gnus-article-mouse-face)
-	     (set-extent-property new 'its-partner txt)
-	     (set-extent-property new 'keymap gnus-picons-map)
-	     (list txt))))))))
-
-(defun gnus-picons-toggle-extent (event)
-  "Toggle picon glyph at given point"
-  (interactive "e")
-  (let* ((ant1 (event-glyph-extent event))
-	 (ant2 (extent-property ant1 'its-partner)))
-    (when (and (annotationp ant1) (annotationp ant2))
-      (reveal-annotation ant2)
-      (hide-annotation ant1))))
-
-(gnus-add-shutdown 'gnus-picons-close 'gnus)
-
-(defun gnus-picons-close ()
-  "Shut down the picons."
-  (setq gnus-picons-glyph-alist nil))
+  (let ((wash-picon-p buffer-read-only))
+    (gnus-with-article-buffer
+     (if (and wash-picon-p (memq 'newsgroups-picon gnus-article-wash-types))
+	 (gnus-delete-images 'newsgroups-picon)
+       (gnus-picon-transform-newsgroups "newsgroups")
+       (gnus-picon-transform-newsgroups "followup-to")))))
 
 (provide 'gnus-picon)