;;; gnus-ems.el --- functions for making Gnus work under different Emacsen
-;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001
+;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
;; Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
(autoload 'gnus-xmas-redefine "gnus-xmas")
(autoload 'appt-select-lowest-window "appt"))
-(if (featurep 'xemacs)
- (autoload 'gnus-smiley-display "smiley")
- (autoload 'gnus-smiley-display "smiley-ems")) ; override XEmacs version
+(autoload 'smiley-region "smiley")
(defun gnus-kill-all-overlays ()
"Delete all overlays in the current buffer."
valstr)))
(eval-and-compile
+ (defalias 'gnus-char-width
+ (if (fboundp 'char-width)
+ 'char-width
+ (lambda (ch) 1)))) ;; A simple hack.
+
+(eval-and-compile
(if (featurep 'xemacs)
(gnus-xmas-define)
(defvar gnus-mouse-face-prop 'mouse-face
"Property used for highlighting mouse regions.")))
-(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)
;; 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
+ ;; quite different. However, this version of Gnus doesn't support
;; anything other than XEmacs 20+ and Emacs 20.3+.
;; Predicates to check are following:
(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))
(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'.")
-
-(defvar gnus-article-compface-xbm
- (condition-case ()
- (eq 0 (string-match "#define"
- (shell-command-to-string "uncompface -X")))
- (error nil))
- "Non-nil means the compface program supports the -X option.
-That produces XBM output.")
-
-(defun gnus-article-display-xface (beg end &optional buffer)
- "Display an XFace header from between BEG and END in BUFFER.
-Requires support for images in your Emacs and the external programs
-`uncompface', and `icontopbm'. On a GNU/Linux system these
-might be in packages with names like `compface' or `faces-xface' and
-`netpbm' or `libgr-progs', for instance. See also
-`gnus-article-compface-xbm'.
-
-This function is for Emacs 21+. See `gnus-xmas-article-display-xface'
-for XEmacs."
- ;; It might be worth converting uncompface's output in Lisp.
-
- (when (if (fboundp 'display-graphic-p)
- (display-graphic-p))
- (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 (if buffer
- (with-current-buffer buffer
- (buffer-substring beg end))
- (buffer-substring beg end)))
- (image (cdr-safe (assoc data (ring-elements
- gnus-article-xface-ring-internal))))
- default-enable-multibyte-characters)
- (unless image
- (with-temp-buffer
- (insert data)
- (and (eq 0 (apply #'call-process-region (point-min) (point-max)
- "uncompface"
- 'delete '(t nil) nil
- (if gnus-article-compface-xbm
- '("-X"))))
- (if gnus-article-compface-xbm
- t
- (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))))
- ;; 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)
- (if gnus-article-compface-xbm
- 'xbm
- 'pbm)
- t
- :ascent 'center
- :foreground "black"
- :background "white"))
- (setq image (create-image (buffer-string)
- (if gnus-article-compface-xbm
- 'xbm
- 'pbm)
- 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)
+ (insert-image glyph (or string " "))
+ (unless string
+ (put-text-property (1- (point)) (point)
+ 'gnus-image-text-deletable t))
+ glyph)
+
+(defun gnus-remove-image (image)
+ (dolist (position (message-text-with-property 'display))
+ (when (equal (get-text-property position 'display) image)
+ (put-text-property position (1+ position) 'display nil)
+ (when (get-text-property position 'gnus-image-text-deletable)
+ (delete-region position (1+ position))))))
(provide 'gnus-ems)
projects / elisp / gnus.git- / blobdiff