X-Git-Url: http://cgit.sxemacs.org/?a=blobdiff_plain;f=lisp%2Fgnus-ems.el;h=aed735fe2ce48ec058d60e7fdb119bcd0d773dcd;hb=75880493a6a9dad9607a4002d4c6ab2895b110ca;hp=e32f4ee7ae9add836e9db8748f568d7d6f1c3ae4;hpb=2bec1ea1295419529d90b47e23af24f536ef8e5c;p=gnus

diff --git a/lisp/gnus-ems.el b/lisp/gnus-ems.el
index e32f4ee7a..aed735fe2 100644
--- a/lisp/gnus-ems.el
+++ b/lisp/gnus-ems.el
@@ -1,6 +1,7 @@
 ;;; gnus-ems.el --- functions for making Gnus work under different Emacsen
-;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000
-;;        Free Software Foundation, Inc.
+
+;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+;;   2004, 2005, 2006 Free Software Foundation, Inc.
 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
 ;; Keywords: news
@@ -19,35 +20,43 @@
 
 ;; 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.
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
 
 ;;; Commentary:
 
 ;;; Code:
 
-(eval-when-compile (require 'cl))
+(eval-when-compile
+  (require 'cl)
+  (require 'ring))
 
 ;;; Function aliases later to be redefined for XEmacs usage.
 
-(eval-and-compile
-  (defvar gnus-xemacs (featurep 'xemacs)
-    "Non-nil if running under XEmacs."))
-
 (defvar gnus-mouse-2 [mouse-2])
 (defvar gnus-down-mouse-3 [down-mouse-3])
 (defvar gnus-down-mouse-2 [down-mouse-2])
 (defvar gnus-widget-button-keymap nil)
 (defvar gnus-mode-line-modified
-  (if (or gnus-xemacs
-	  (< emacs-major-version 20))
+  (if (featurep 'xemacs)
       '("--**-" . "-----")
     '("**" "--")))
 
 (eval-and-compile
   (autoload 'gnus-xmas-define "gnus-xmas")
   (autoload 'gnus-xmas-redefine "gnus-xmas")
-  (autoload 'appt-select-lowest-window "appt"))
+  (autoload 'gnus-get-buffer-create "gnus")
+  (autoload 'nnheader-find-etc-directory "nnheader"))
+
+(autoload 'smiley-region "smiley")
+
+(defun gnus-kill-all-overlays ()
+  "Delete all overlays in the current buffer."
+  (let* ((overlayss (overlay-lists))
+	 (buffer-read-only nil)
+	 (overlays (delq nil (nconc (car overlayss) (cdr overlayss)))))
+    (while overlays
+      (delete-overlay (pop overlays)))))
 
 ;;; Mule functions.
 
@@ -60,45 +69,28 @@
        valstr)))
 
 (eval-and-compile
-  (if gnus-xemacs
+  (if (featurep 'xemacs)
       (gnus-xmas-define)
     (defvar gnus-mouse-face-prop 'mouse-face
       "Property used for highlighting mouse regions.")))
 
-(eval-and-compile
-  (cond
-   ((not window-system)
-    (let ((funcs '(mouse-set-point set-face-foreground
-				   set-face-background x-popup-menu)))
-      (while funcs
-	(unless (fboundp (car funcs))
-	  (defalias (car funcs) 'ignore))
-	(setq funcs (cdr funcs)))))))
-
-(eval-and-compile
-  (let ((case-fold-search t))
-    (cond
-     ((string-match "windows-nt\\|os/2\\|emx\\|cygwin32"
-		    (symbol-name system-type))
-      (setq nnheader-file-name-translation-alist
-	    (append nnheader-file-name-translation-alist
-		    (mapcar (lambda (c) (cons c ?_))
-			    '(?: ?* ?\" ?< ?> ??))
-		    '((?+ . ?-))))))))
-
-(defvar gnus-tmp-unread)
-(defvar gnus-tmp-replied)
-(defvar gnus-tmp-score-char)
-(defvar gnus-tmp-indentation)
-(defvar gnus-tmp-opening-bracket)
-(defvar gnus-tmp-lines)
-(defvar gnus-tmp-name)
-(defvar gnus-tmp-closing-bracket)
-(defvar gnus-tmp-subject-or-nil)
+(eval-when-compile
+  (defvar gnus-tmp-unread)
+  (defvar gnus-tmp-replied)
+  (defvar gnus-tmp-score-char)
+  (defvar gnus-tmp-indentation)
+  (defvar gnus-tmp-opening-bracket)
+  (defvar gnus-tmp-lines)
+  (defvar gnus-tmp-name)
+  (defvar gnus-tmp-closing-bracket)
+  (defvar gnus-tmp-subject-or-nil)
+  (defvar gnus-check-before-posting)
+  (defvar gnus-mouse-face)
+  (defvar gnus-group-buffer))
 
 (defun gnus-ems-redefine ()
   (cond
-   (gnus-xemacs
+   ((featurep 'xemacs)
     (gnus-xmas-redefine))
 
    ((featurep 'mule)
@@ -106,24 +98,23 @@
 
     ;; [Note] Now there are three kinds of mule implementations,
     ;; original MULE, XEmacs/mule and Emacs 20+ including
-    ;; MULE features.  Unfortunately these API are different.  In
-    ;; particular, Emacs (including original MULE) and XEmacs are
-    ;; quite different.  Howvere, this version of Gnus doesn't support
+    ;; MULE features.  Unfortunately these APIs are different.  In
+    ;; particular, Emacs (including original Mule) and XEmacs are
+    ;; quite different.  However, this version of Gnus doesn't support
     ;; anything other than XEmacs 20+ and Emacs 20.3+.
 
     ;; Predicates to check are following:
-    ;; (boundp 'MULE) is t only if MULE (original; anything older than
+    ;; (boundp 'MULE) is t only if Mule (original; anything older than
     ;;                     Mule 2.3) is running.
-    ;; (featurep 'mule) is t when every mule variants are running.
+    ;; (featurep 'mule) is t when other mule variants are running.
 
     ;; It is possible to detect XEmacs/mule by (featurep 'mule) and
-    ;; checking `emacs-version'.  In this case, the implementation for
+    ;; (featurep 'xemacs).  In this case, the implementation for
     ;; XEmacs/mule may be shareable between XEmacs and XEmacs/mule.
 
     (defvar gnus-summary-display-table nil
       "Display table used in summary mode buffers.")
     (defalias 'gnus-max-width-function 'gnus-mule-max-width-function)
-    (defalias 'gnus-summary-set-display-table 'ignore)
 
     (when (boundp 'gnus-check-before-posting)
       (setq gnus-check-before-posting
@@ -148,6 +139,18 @@
        gnus-mouse-face-prop gnus-mouse-face)
       (insert " " gnus-tmp-subject-or-nil "\n")))))
 
+;; Clone of `appt-select-lowest-window' in appt.el.
+(defun gnus-select-lowest-window ()
+"Select the lowest window on the frame."
+  (let ((lowest-window (selected-window))
+	(bottom-edge (nth 3 (window-edges))))
+    (walk-windows (lambda (w)
+		    (let ((next-bottom-edge (nth 3 (window-edges w))))
+		      (when (< bottom-edge next-bottom-edge)
+			(setq bottom-edge next-bottom-edge
+			      lowest-window w)))))
+    (select-window lowest-window)))
+
 (defun gnus-region-active-p ()
   "Say whether the region is active."
   (and (boundp 'transient-mark-mode)
@@ -155,15 +158,9 @@
        (boundp 'mark-active)
        mark-active))
 
-(if (fboundp 'add-minor-mode)
-    (defalias 'gnus-add-minor-mode 'add-minor-mode)
-  (defun gnus-add-minor-mode (mode name map &rest rest)
-    (set (make-local-variable mode) t)
-    (unless (assq mode minor-mode-alist)
-      (push `(,mode ,name) minor-mode-alist))
-    (unless (assq mode minor-mode-map-alist)
-      (push (cons mode map)
-	    minor-mode-map-alist))))
+(defun gnus-mark-active-p ()
+  "Non-nil means the mark and region are currently active in this buffer."
+  mark-active) ; aliased to region-exists-p in XEmacs.
 
 (defun gnus-x-splash ()
   "Show a splash screen using a pixmap in the current buffer."
@@ -171,16 +168,19 @@
 	pixmap file height beg i)
     (save-excursion
       (switch-to-buffer (gnus-get-buffer-create gnus-group-buffer))
-      (let ((buffer-read-only nil))
+      (let ((buffer-read-only nil)
+	    width height)
 	(erase-buffer)
 	(when (and dir
 		   (file-exists-p (setq file
 					(expand-file-name "x-splash" dir))))
-	  (with-temp-buffer
-	    (insert-file-contents file)
-	    (goto-char (point-min))
-	    (ignore-errors
-	      (setq pixmap (read (current-buffer))))))
+	  (let ((coding-system-for-read 'raw-text)
+		default-enable-multibyte-characters)
+	    (with-temp-buffer
+	      (insert-file-contents file)
+	      (goto-char (point-min))
+	      (ignore-errors
+		(setq pixmap (read (current-buffer)))))))
 	(when pixmap
 	  (make-face 'gnus-splash)
 	  (setq height (/ (car pixmap) (frame-char-height))
@@ -199,70 +199,51 @@
 	  (goto-char (point-min))
 	  (sit-for 0))))))
 
-(defvar gnus-article-xface-ring-internal nil
-  "Cache for face data.")
-
-;; Worth customizing?
-(defvar gnus-article-xface-ring-size 6
-  "Length of the ring used for `gnus-article-xface-ring-internal'.")
-
-(defun gnus-article-display-xface (beg end)
-  "Display an XFace header from between BEG and END in the current article.
-Requires support for images in your Emacs and the external programs
-`uncompface', `icontopbm' and `ppmtoxbm'.  On a GNU/Linux system these
-might be in packages with names like `compface' or `faces-xface' and
-`netpbm' or `libgr-progs', for instance.
-
-This function is for Emacs 21+.  See `gnus-xmas-article-display-xface'
-for XEmacs."
-  ;; It might be worth converting uncompface's output in Lisp.
-
-  (unless gnus-article-xface-ring-internal ; Only load ring when needed.
-    (setq gnus-article-xface-ring-internal
-	  (make-ring gnus-article-xface-ring-size)))
-  (save-excursion
-    (let* ((cur (current-buffer))
-	   (data (buffer-substring beg end))
-	   (image (cdr-safe (assoc data (ring-elements
-					 gnus-article-xface-ring-internal)))))
-      (when (if (fboundp 'display-graphic-p)
-		(display-graphic-p))
-	(unless image
-	  (let ((coding-system-for-read 'binary)
-		(coding-system-for-write 'binary))
-	    (with-temp-buffer
-	      (insert data)
-	      (and (eq 0 (call-process-region (point-min) (point-max)
-					      "uncompface"
-					      'delete '(t nil)))
-		   (goto-char (point-min))
-		   (progn (insert "/* Width=48, Height=48 */\n") t)
-		   (eq 0 (call-process-region (point-min) (point-max)
-					      "icontopbm"
-					      'delete '(t nil)))
-		   (eq 0 (call-process-region (point-min) (point-max)
-					      "pbmtoxbm"
-					      'delete '(t nil)))
-		   ;; Miles Bader says that faces don't look right as
-		   ;; light on dark.
-		   (if (eq 'dark (cdr-safe (assq 'background-mode
-						 (frame-parameters))))
-		       (setq image (create-image (buffer-string) 'xbm t
-						 :ascent 'center
-						 :foreground "black"
-						 :background "white"))
-		     (setq image (create-image (buffer-string) 'xbm t
-					       :ascent 'center))))))
-	  (ring-insert gnus-article-xface-ring-internal (cons data image))))
-      (when image
-	(goto-char (point-min))
-	(re-search-forward "^From:" nil 'move)
-	(insert-image image)))))
+;;; Image functions.
+
+(defun gnus-image-type-available-p (type)
+  (and (fboundp 'image-type-available-p)
+       (image-type-available-p type)))
+
+(defun gnus-create-image (file &optional type data-p &rest props)
+  (let ((face (plist-get props :face)))
+    (when face
+      (setq props (plist-put props :foreground (face-foreground face)))
+      (setq props (plist-put props :background (face-background face))))
+    (apply 'create-image file type data-p props)))
+
+(defun gnus-put-image (glyph &optional string category)
+  (let ((point (point)))
+    (insert-image glyph (or string " "))
+    (put-text-property point (point) 'gnus-image-category category)
+    (unless string
+      (put-text-property (1- (point)) (point)
+			 'gnus-image-text-deletable t))
+    glyph))
+
+(defun gnus-remove-image (image &optional category)
+  "Remove the image matching IMAGE and CATEGORY found first."
+  (let ((start (point-min))
+	val end)
+    (while (and (not end)
+		(or (setq val (get-text-property start 'display))
+		    (and (setq start
+			       (next-single-property-change start 'display))
+			 (setq val (get-text-property start 'display)))))
+      (setq end (or (next-single-property-change start 'display)
+		    (point-max)))
+      (if (and (equal val image)
+	       (equal (get-text-property start 'gnus-image-category)
+		      category))
+	  (progn
+	    (put-text-property start end 'display nil)
+	    (when (get-text-property start 'gnus-image-text-deletable)
+	      (delete-region start end)))
+	(unless (= end (point-max))
+	  (setq start end
+		end nil))))))
 
 (provide 'gnus-ems)
 
-;; Local Variables:
-;; byte-compile-warnings: '(redefine callargs)
-;; End:
-
+;;; arch-tag: e7360b45-14b5-4171-aa39-69a44aed3cdb
 ;;; gnus-ems.el ends here