diff options
Diffstat (limited to 'lisp/gnus/gnus-ems.el')
| -rw-r--r-- | lisp/gnus/gnus-ems.el | 172 |
1 files changed, 72 insertions, 100 deletions
diff --git a/lisp/gnus/gnus-ems.el b/lisp/gnus/gnus-ems.el index 10fdb2dc7b..729b0013dc 100644 --- a/lisp/gnus/gnus-ems.el +++ b/lisp/gnus/gnus-ems.el @@ -1,5 +1,5 @@ ;;; gnus-ems.el --- functions for making Gnus work under different Emacsen -;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000 +;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 ;; Free Software Foundation, Inc. ;; Author: Lars Magne Ingebrigtsen <[email protected]> @@ -45,12 +45,13 @@ (eval-and-compile (autoload 'gnus-xmas-define "gnus-xmas") (autoload 'gnus-xmas-redefine "gnus-xmas") - (autoload 'appt-select-lowest-window "appt")) + (autoload 'appt-select-lowest-window "appt") + (autoload 'gnus-get-buffer-create "gnus") + (autoload 'nnheader-find-etc-directory "nnheader")) -(if (featurep 'xemacs) - (autoload 'gnus-smiley-display "smiley") - (autoload 'gnus-smiley-display "smiley-ems") ; override XEmacs version -) +(autoload 'smiley-region "smiley") +;; Fixme: shouldn't require message +(autoload 'message-text-with-property "message") (defun gnus-kill-all-overlays () "Delete all overlays in the current buffer." @@ -71,20 +72,30 @@ 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."))) -(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 @@ -96,18 +107,18 @@ ;; [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 + ;; 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 @@ -144,6 +155,10 @@ (boundp 'mark-active) mark-active)) +(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. + (if (fboundp 'add-minor-mode) (defalias 'gnus-add-minor-mode 'add-minor-mode) (defun gnus-add-minor-mode (mode name map &rest rest) @@ -166,11 +181,13 @@ (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)) @@ -189,81 +206,36 @@ (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 - (eq 0 (string-match "#define" (shell-command-to-string "uncompface -X"))) - "Non-nil means the compface program supports the -X option. -That produces XBM output.") - -(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', 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 (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) - (while (get-text-property (point) 'display) - (goto-char (next-single-property-change (point) 'display))) - (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) + (dolist (position (message-text-with-property 'display)) + (when (and (equal (get-text-property position 'display) image) + (equal (get-text-property position 'gnus-image-category) + category)) + (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) |