X-Git-Url: https://cgit.sxemacs.org/?a=blobdiff_plain;f=lisp%2Fgnus-picon.el;h=188f07168fee71d70b5cd2b6919df703688bc3b3;hb=a8ee92ba66284aa600ccd866e9a85fcbe35ea116;hp=36437edb1692a9dc08d87cb4b0dff3ff232b3714;hpb=c66544cbcf56f439e6fc8c07079c829e7e16d1e0;p=gnus

diff --git a/lisp/gnus-picon.el b/lisp/gnus-picon.el
index 36437edb1..188f07168 100644
--- a/lisp/gnus-picon.el
+++ b/lisp/gnus-picon.el
@@ -1,121 +1,264 @@
-;; gnus-picon.el:  Copyright (C) 1995 Wes Hardaker
-;; Icon hacks for displaying pretty icons in Gnus.
-;;
-;; Author:  Wes hardaker
-;;          hardaker@ece.ucdavis.edu
-;; 
-;; Usage:
-;;     - You must have XEmacs to use this.
-;;     - (add-hook 'gnus-article-display-hook 'gnus-article-display-picons t)
-;;       This HAS to have the 't' flag above to make sure it appends the hook.
-;;     - Read the variable descriptions below.
-;;
-;; Warnings:
-;;     - I'm not even close to being a lisp expert.
-;;
-;; TODO:
-;;     - Following the Gnus motto: We've got to build him bigger,
-;;       better, stronger, faster than before...  errr....  sorry.
-;;     - Create a seperate frame to store icons in so icons are
-;;       visibile immediately upon entering a group rather than just
-;;       at the top of the article buffer.
+;;; gnus-picon.el --- displaying pretty icons in Gnus
+
+;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002
+;;      Free Software Foundation, Inc.
+
+;; Author: Wes Hardaker <hardaker@ece.ucdavis.edu>
+;; 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
+;; 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.
+
+;; 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
+;; 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.
+
+;;; 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
+
+;;; Code:
+
+(require 'gnus)
+(require 'custom)
+(require 'gnus-art)
+
+;;; User variables:
+
+(defcustom gnus-picon-news-directories '("news")
+  "*List of directories to search for newsgroups faces."
+  :type '(repeat string)
+  :group 'gnus-picon)
+
+(defcustom gnus-picon-user-directories '("users" "usenix" "local" "misc")
+  "*List of directories to search for user faces."
+  :type '(repeat string)
+  :group 'gnus-picon)
+
+(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)
 
-(require 'xpm)
-(require 'annotations)
+(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)
 
-(defvar 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"
-)
+(defface gnus-picon-xbm-face '((t (:foreground "black" :background "white")))
+  "Face to show xbm picon in."
+  :group 'gnus-picon)
 
-(defvar gnus-picons-news-directory "news"
-  "Sub-directory of the faces database containing the icons for
-  newsgroups."
-)
+(defface gnus-picon-face '((t (:foreground "black" :background "white")))
+  "Face to show picon in."
+  :group 'gnus-picon)
 
-(defvar gnus-picons-user-directories '("local" "users" "usenix" "misc/MISC")
-  "List of directories to search for user faces."
-)
+;;; Internal variables:
 
-(defvar gnus-picons-domain-directories '("domains")
-  "List of directories to search for domain faces.  Some people may
-  want to add \"unknown\" to this list."
-)
+(defvar gnus-picon-setup-p nil)
+(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)
+  "Insert GLYPH into the buffer.
+GLYPH can be either a glyph or a string."
+  (if (stringp glyph)
+      (insert glyph)
+    (gnus-add-wash-type category)
+    (gnus-add-image category (car glyph))
+    (gnus-put-image (car glyph) (cdr glyph))))
+
+(defun gnus-picon-create-glyph (file)
+  (or (cdr (assoc file gnus-picon-glyph-alist))
+      (cdar (push (cons file (gnus-create-image file))
+		  gnus-picon-glyph-alist))))
+
+;;; Functions that does picon transformations:
+
+(defun gnus-picon-transform-address (header category)
+  (gnus-with-article-headers
+    (let ((addresses
+	   (mail-header-parse-addresses (mail-fetch-field header)))
+	  spec file point cache)
+      (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 (1- (length spec)))
+	      (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)
+	  (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-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:
+
+;;;###autoload
+(defun gnus-treat-from-picon ()
+  "Display picons in the From header.
+If picons are already displayed, remove them."
+  (interactive)
+  (gnus-with-article-buffer
+    (if (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)
+  (gnus-with-article-buffer
+    (if (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))))
 
-(defun gnus-article-display-picons ()
-  "prepare article buffer with pretty pictures"
+;;;###autoload
+(defun gnus-treat-newsgroups-picon ()
+  "Display picons in the Newsgroups and Followup-To headers.
+If picons are already displayed, remove them."
   (interactive)
-  (if (featurep 'xpm)
-      (save-excursion
-	(beginning-of-buffer)
-	(open-line 1)
-	(let* ((iconpoint (point)) (from (mail-fetch-field "from"))
-	       (username 
-		(progn
-		  (string-match "\\([-_a-zA-Z0-9]+\\)@" from)
-		  (match-string 1 from)))
-	       (hostpath
-		(gnus-picons-reverse-domain-path
-		 (replace-in-string
-		  (replace-in-string from ".*@\\([_a-zA-Z0-9-.]+\\).*" "\\1") 
-		  "\\." "/"))))
-	  (if (equal username from)
-	      (setq username (replace-in-string from 
-						".*<\\([_a-zA-Z0-9-.]+\\)>.*" 
-						"\\1")))
-	  (insert username)
-	  (gnus-picons-insert-face-if-exists 
-	   (concat gnus-picons-database "/" gnus-picons-news-directory)
-	   (concat (replace-in-string gnus-newsgroup-name "\\." "/") "/unknown")
-	   iconpoint)
-	  (mapcar '(lambda (pathpart) 
-		     (gnus-picons-insert-face-if-exists 
-		      (concat gnus-picons-database "/" pathpart)
-		      (concat hostpath "/" username) 
-		      iconpoint)) 
-		  gnus-picons-user-directories)
-	  (mapcar '(lambda (pathpart) 
-		     (gnus-picons-insert-face-if-exists 
-		      (concat gnus-picons-database "/" pathpart)
-		      (concat hostpath "/" "unknown") 
-		      iconpoint)) 
-		  gnus-picons-domain-directories)
-	  ))))
-
-(defun gnus-picons-insert-face-if-exists (path filename ipoint)
-  "inserts a face at point if I can find one"
-  (let ((pathfile (concat path "/" filename "/face")))
-    (let ((newfilename 
-	   (replace-in-string filename 
-			      "[_a-zA-Z0-9-]+/\\([_A-Za-z0-9-]+\\)$" "\\1")))
-      (if (not (equal filename newfilename))
-	  (gnus-picons-insert-face-if-exists path newfilename ipoint)))
-    (if (not (gnus-picons-try-to-find-face (concat pathfile ".xpm") ipoint))
-	(gnus-picons-try-to-find-face (concat pathfile ".xbm") ipoint))
-    )
-  )
-  
-
-(defun gnus-picons-try-to-find-face (path ipoint)
-  "if path exists, display it as a bitmap.  Returns t if succedded."
-    (if (file-exists-p path)
-	(progn
-	  (setq gl (make-glyph path))
-	  (set-glyph-face gl 'default)
-	  (setq annot (make-annotation gl ipoint 'text))
-	  t)
-;      (insert (format "no:  %s\n" path))
-      nil))
-
-(defun gnus-picons-reverse-domain-path (str)
-  "a/b/c/d -> d/c/b/a"
-  (if (equal (replace-in-string str "^[^/]*$" "") "")
-      str
-    (concat (replace-in-string str "^.*/\\([_a-zA-Z0-9-]+\\)$" "\\1") "/"
-	    (gnus-picons-reverse-domain-path 
-	     (replace-in-string str "^\\(.*\\)/[_a-zA-Z0-9-]+$" "\\1")))))
+  (gnus-with-article-buffer
+    (if (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)
 
+;;; gnus-picon.el ends here