;;; gnus-ems.el --- functions for making Gnus work under different Emacsen
-;; Copyright (C) 1995 Free Software Foundation, Inc.
-;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
+;; Copyright (C) 1995, 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
;; 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
;; 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, 675 Mass Ave, Cambridge, MA 02139, USA.
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
+(eval-when-compile
+ (require 'cl)
+ (require 'ring))
+
+;;; Function aliases later to be redefined for XEmacs usage.
+
(defvar gnus-mouse-2 [mouse-2])
-(defvar gnus-easymenu 'easymenu)
-(defvar gnus-group-mode-hook ())
-(defvar gnus-summary-mode-hook ())
-(defvar gnus-article-mode-hook ())
-
-;; We do not byte-compile this file, because error messages are such a
-;; bore.
-
-(eval
- '(cond
- ((string-match "XEmacs\\|Lucid" emacs-version)
- ;; XEmacs definitions.
-
- (defvar gnus-summary-highlight
- '(((> score default) . bold)
- ((< score default) . italic))
- "*Alist of `(FORM . FACE)'.
-Summary lines are highlighted with the FACE for the first FORM which
-evaluate to a non-nil value.
-
-Point will be at the beginning of the line when FORM is evaluated.
-The following can be used for convenience:
-
-score: (gnus-summary-article-score)
-default: gnus-summary-default-score
-below: gnus-summary-mark-below
-
-To check for marks, e.g. to underline replied articles, use
-`gnus-summary-article-mark':
-
- ((= (gnus-summary-article-mark) gnus-replied-mark) . underline)")
-
- (setq gnus-mouse-2 [button2])
- (setq gnus-easymenu 'auc-menu)
-
- (or (memq 'underline (list-faces))
- (funcall (intern "make-face") 'underline))
- ;; Must avoid calling set-face-underline-p directly, because it
- ;; is a defsubst in emacs19, and will make the .elc files non
- ;; portable!
- (or (face-differs-from-default-p 'underline)
- (funcall 'set-face-underline-p 'underline t))
- (or (fboundp 'set-text-properties)
- (defun set-text-properties (start end props &optional buffer)
- (if (or (null buffer) (bufferp buffer))
- (if props
- (while props
- (put-text-property
- start end (car props) (nth 1 props) buffer)
- (setq props (nthcdr 2 props)))
- (remove-text-properties start end ())))))
-
- (defvar gnus-header-face-alist
- '(("" bold italic)))
-
- (or (fboundp 'make-overlay) (fset 'make-overlay 'make-extent))
- (or (fboundp 'overlay-put) (fset 'overlay-put 'set-extent-property))
- (or (fboundp 'move-overlay)
- (defun move-overlay (extent start end &optional buffer)
- (set-extent-endpoints extent start end)))
- (or (boundp 'standard-display-table) (setq standard-display-table nil))
- (or (boundp 'read-event) (fset 'read-event 'next-command-event))
-
- (setq gnus-display-type
- (let ((display-resource
- (x-get-resource ".displayType" "DisplayType" 'string)))
- (cond (display-resource (intern (downcase display-resource)))
- ((x-display-color-p) 'color)
- ((x-display-grayscale-p) 'grayscale)
- (t 'mono))))
-
- (setq gnus-background-mode
- (let ((bg-resource
- (x-get-resource ".backgroundMode" "BackgroundMode" 'string))
- (params (frame-parameters)))
- (cond (bg-resource (intern (downcase bg-resource)))
-; ((< (apply '+ (x-color-values
-; (cdr (assq 'background-color params))))
-; (/ (apply '+ (x-color-values "white")) 3))
-; 'dark)
- (t 'light))))
-
- (if (not gnus-visual)
- ()
- (setq gnus-group-mode-hook
- (cons
- '(lambda ()
- (easy-menu-add gnus-group-reading-menu)
- (easy-menu-add gnus-group-group-menu)
- (easy-menu-add gnus-group-post-menu)
- (easy-menu-add gnus-group-misc-menu)
- (gnus-install-mouse-tracker))
- gnus-group-mode-hook))
- (setq gnus-summary-mode-hook
- (cons
- '(lambda ()
- (easy-menu-add gnus-summary-mark-menu)
- (easy-menu-add gnus-summary-move-menu)
- (easy-menu-add gnus-summary-article-menu)
- (easy-menu-add gnus-summary-thread-menu)
- (easy-menu-add gnus-summary-misc-menu)
- (easy-menu-add gnus-summary-post-menu)
- (easy-menu-add gnus-summary-kill-menu)
- (gnus-install-mouse-tracker))
- gnus-summary-mode-hook))
- (setq gnus-article-mode-hook
- (cons
- '(lambda ()
- (easy-menu-add gnus-article-article-menu)
- (easy-menu-add gnus-article-treatment-menu))
- gnus-article-mode-hook)))
-
- (defun gnus-install-mouse-tracker ()
- (require 'mode-motion)
- (setq mode-motion-hook 'mode-motion-highlight-line)))
-
- ((and (not (string-match "28.9" emacs-version))
- (not (string-match "29" emacs-version)))
- (setq gnus-hidden-properties '(invisible t))
- (or (fboundp 'buffer-substring-no-properties)
- (defun buffer-substring-no-properties (beg end)
- (format "%s" (buffer-substring beg end)))))
-
- ((boundp 'MULE)
- (provide 'gnusutil))
-
- ))
+(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 (featurep 'xemacs)
+ '("--**-" . "-----")
+ '("**" "--")))
(eval-and-compile
- (cond
- ((not window-system)
- (defun gnus-dummy-func (&rest args))
- (let ((funcs '(mouse-set-point set-face-foreground
- set-face-background x-popup-menu)))
- (while funcs
- (or (fboundp (car funcs))
- (fset (car funcs) 'gnus-dummy-func))
- (setq funcs (cdr funcs))))))
- (or (fboundp 'file-regular-p)
- (defun file-regular-p (file)
- (and (not (file-directory-p file))
- (not (file-symlink-p file))
- (file-exists-p file))))
- (or (fboundp 'face-list)
- (defun face-list (&rest args)))
- )
+ (autoload 'gnus-xmas-define "gnus-xmas")
+ (autoload 'gnus-xmas-redefine "gnus-xmas"))
+
+(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.
+
+(defun gnus-mule-max-width-function (el max-width)
+ `(let* ((val (eval (, el)))
+ (valstr (if (numberp val)
+ (int-to-string val) val)))
+ (if (> (length valstr) ,max-width)
+ (truncate-string-to-width valstr ,max-width)
+ valstr)))
+
+(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)
+(defvar gnus-check-before-posting)
+(defvar gnus-mouse-face)
+(defvar gnus-group-buffer)
(defun gnus-ems-redefine ()
- (cond
- ((string-match "XEmacs\\|Lucid" emacs-version)
- ;; XEmacs definitions.
- (fset 'gnus-set-mouse-face 'identity)
- (fset 'gnus-summary-make-display-table (lambda () nil))
- (fset 'gnus-visual-turn-off-edit-menu 'identity)
-
- (defun gnus-highlight-selected-summary ()
- ;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
- ;; Highlight selected article in summary buffer
- (if gnus-summary-selected-face
- (save-excursion
- (let* ((beg (progn (beginning-of-line) (point)))
- (end (progn (end-of-line) (point)))
- (to (max 1 (1- (or (previous-single-property-change
- end 'mouse-face nil beg) end))))
- (from (1+ (or (next-single-property-change
- beg 'mouse-face nil end) beg))))
- (if (< to beg)
- (progn
- (setq from beg)
- (setq to end)))
- (if gnus-newsgroup-selected-overlay
- (delete-extent gnus-newsgroup-selected-overlay))
- (setq gnus-newsgroup-selected-overlay
- (make-extent from to))
- (set-extent-face gnus-newsgroup-selected-overlay
- gnus-summary-selected-face)))))
-
-
- (defun gnus-summary-recenter ()
- (let* ((top (cond ((< (window-height) 4) 0)
- ((< (window-height) 7) 1)
- (t 2)))
- (height (- (window-height) 2))
- (bottom (save-excursion (goto-char (point-max))
- (forward-line (- height))
- (point)))
- (window (get-buffer-window (current-buffer))))
- (and
- ;; The user has to want it,
- gnus-auto-center-summary
- ;; the article buffer must be displayed,
- (get-buffer-window gnus-article-buffer)
- ;; Set the window start to either `bottom', which is the biggest
- ;; possible valid number, or the second line from the top,
- ;; whichever is the least.
- (set-window-start
- window (min bottom (save-excursion (forward-line (- top))
- (point)))))))
-
- (defun gnus-group-insert-group-line-info (group)
- (let ((entry (gnus-gethash group gnus-newsrc-hashtb))
- (beg (point))
- active info)
- (if entry
- (progn
- (setq info (nth 2 entry))
- (gnus-group-insert-group-line
- nil group (nth 1 info) (nth 3 info) (car entry) (nth 4 info)))
- (setq active (gnus-gethash group gnus-active-hashtb))
-
- (gnus-group-insert-group-line
- nil group (if (member group gnus-zombie-list) gnus-level-zombie
- gnus-level-killed)
- nil (if active (- (1+ (cdr active)) (car active)) 0) nil))
- (save-excursion
- (goto-char beg)
- (remove-text-properties
- (1+ (gnus-point-at-bol)) (1+ (gnus-point-at-eol))
- '(gnus-group nil)))))
-
- (defun gnus-copy-article-buffer (&optional article-buffer)
- (setq gnus-article-copy (get-buffer-create " *gnus article copy*"))
- (buffer-disable-undo gnus-article-copy)
- (or (memq gnus-article-copy gnus-buffer-list)
- (setq gnus-buffer-list (cons gnus-article-copy gnus-buffer-list)))
- (let ((article-buffer (or article-buffer gnus-article-buffer))
- buf)
- (if (and (get-buffer article-buffer)
- (buffer-name (get-buffer article-buffer)))
- (save-excursion
- (set-buffer article-buffer)
- (widen)
- (setq buf (buffer-substring (point-min) (point-max)))
- (set-buffer gnus-article-copy)
- (erase-buffer)
- (insert (format "%s" buf))))))
-
- (defun gnus-summary-refer-article (message-id)
- "Refer article specified by MESSAGE-ID.
-NOTE: This command only works with newsgroups that use real or simulated NNTP."
- (interactive "sMessage-ID: ")
- (if (or (not (stringp message-id))
- (zerop (length message-id)))
- ()
- ;; Construct the correct Message-ID if necessary.
- ;; Suggested by tale@pawl.rpi.edu.
- (or (string-match "^<" message-id)
- (setq message-id (concat "<" message-id)))
- (or (string-match ">$" message-id)
- (setq message-id (concat message-id ">")))
- (let ((header (car (gnus-gethash (downcase message-id)
- gnus-newsgroup-dependencies))))
- (if header
- (or (gnus-summary-goto-article (header-number header))
- ;; The header has been read, but the article had been
- ;; expunged, so we insert it again.
- (let ((beg (point)))
- (gnus-summary-insert-line
- nil header 0 nil gnus-read-mark nil nil
- (header-subject header))
- (save-excursion
- (goto-char beg)
- (remove-text-properties
- (1+ (gnus-point-at-bol)) (1+ (gnus-point-at-eol))
- '(gnus-number nil gnus-mark nil gnus-level nil)))
- (forward-line -1)
- (header-number header)))
- (let ((gnus-override-method gnus-refer-article-method)
- (gnus-ancient-mark gnus-read-mark)
- (tmp-buf (get-buffer-create " *gnus refer"))
- (tmp-point (window-start
- (get-buffer-window gnus-article-buffer)))
- number)
- (and gnus-refer-article-method
- (or (gnus-server-opened gnus-refer-article-method)
- (gnus-open-server gnus-refer-article-method)))
- ;; Save the old article buffer.
- (save-excursion
- (set-buffer tmp-buf)
- (buffer-disable-undo (current-buffer))
- (insert-buffer-substring gnus-article-buffer))
- (prog1
- (if (gnus-article-prepare
- message-id nil (gnus-read-header message-id))
- (progn
- (setq number (header-number gnus-current-headers))
- (gnus-rebuild-thread message-id)
- (gnus-summary-goto-subject number)
- (gnus-summary-recenter)
- (gnus-article-set-window-start
- (cdr (assq number gnus-newsgroup-bookmarks)))
- message-id)
- ;; We restore the old article buffer.
- (save-excursion
- (set-buffer gnus-article-buffer)
- (let ((buffer-read-only nil))
- (insert-buffer-substring tmp-buf)
- (and tmp-point
- (set-window-start (get-buffer-window (current-buffer))
- tmp-point))))
- nil)
- (kill-buffer tmp-buf)))))))
-
- (defun gnus-summary-insert-pseudos (pslist &optional not-view)
- (let ((buffer-read-only nil)
- (article (gnus-summary-article-number))
- b)
- (or (gnus-summary-goto-subject article)
- (error (format "No such article: %d" article)))
- (or gnus-newsgroup-headers-hashtb-by-number
- (gnus-make-headers-hashtable-by-number))
- (gnus-summary-position-cursor)
- ;; If all commands are to be bunched up on one line, we collect
- ;; them here.
- (if gnus-view-pseudos-separately
- ()
- (let ((ps (setq pslist (sort pslist 'gnus-pseudos<)))
- files action)
- (while ps
- (setq action (cdr (assq 'action (car ps))))
- (setq files (list (cdr (assq 'name (car ps)))))
- (while (and ps (cdr ps)
- (string= (or action "1")
- (or (cdr (assq 'action (car (cdr ps)))) "2")))
- (setq files (cons (cdr (assq 'name (car (cdr ps)))) files))
- (setcdr ps (cdr (cdr ps))))
- (if (not files)
- ()
- (if (not (string-match "%s" action))
- (setq files (cons " " files)))
- (setq files (cons " " files))
- (and (assq 'execute (car ps))
- (setcdr (assq 'execute (car ps))
- (funcall (if (string-match "%s" action)
- 'format 'concat)
- action
- (mapconcat (lambda (f) f) files " ")))))
- (setq ps (cdr ps)))))
- (if (and gnus-view-pseudos (not not-view))
- (while pslist
- (and (assq 'execute (car pslist))
- (gnus-execute-command (cdr (assq 'execute (car pslist)))
- (eq gnus-view-pseudos 'not-confirm)))
- (setq pslist (cdr pslist)))
- (save-excursion
- (while pslist
- (gnus-summary-goto-subject (or (cdr (assq 'article (car pslist)))
- (gnus-summary-article-number)))
- (forward-line 1)
- (setq b (point))
- (insert " " (file-name-nondirectory
- (cdr (assq 'name (car pslist))))
- ": " (or (cdr (assq 'execute (car pslist))) "") "\n")
- (add-text-properties
- b (1+ b) (list 'gnus-number gnus-reffed-article-number
- 'gnus-mark gnus-unread-mark
- 'gnus-level 0
- 'gnus-pseudo (car pslist)))
- (remove-text-properties (b) (gnus-point-at-eol)
- '(gnus-number nil gnus-mark nil gnus-level nil))
- (forward-line -1)
- (gnus-sethash (int-to-string gnus-reffed-article-number)
- (car pslist) gnus-newsgroup-headers-hashtb-by-number)
- (setq gnus-reffed-article-number (1- gnus-reffed-article-number))
- (setq pslist (cdr pslist)))))))
-
-
-
- )
-
- ((boundp 'MULE)
- ;; Mule definitions
- (if (not (fboundp 'truncate-string))
- (defun truncate-string (str width)
- (let ((w (string-width str))
- (col 0) (idx 0) (p-idx 0) chr)
- (if (<= w width)
- str
- (while (< col width)
- (setq chr (aref str idx)
- col (+ col (char-width chr))
- p-idx idx
- idx (+ idx (char-bytes chr))
- ))
- (substring str 0 (if (= col width)
- idx
- p-idx))
- )))
- )
- (defalias 'gnus-truncate-string 'truncate-string)
-
- (defun gnus-cite-add-face (number prefix face)
- ;; At line NUMBER, ignore PREFIX and add FACE to the rest of the line.
- (if face
- (let ((inhibit-point-motion-hooks t)
- from to)
- (goto-line number)
- (if (boundp 'MULE)
- (forward-char (chars-in-string prefix))
- (forward-char (length prefix)))
- (skip-chars-forward " \t")
- (setq from (point))
- (end-of-line 1)
- (skip-chars-backward " \t")
- (setq to (point))
- (if (< from to)
- (overlay-put (make-overlay from to) 'face face)))))
-
- (fset
- 'gnus-format-max-width
- (lambda (form length)
- (let* ((val (eval form))
- (valstr (if (numberp val) (int-to-string val) val)))
- (if (> (length valstr) length)
- (truncate-string valstr length)
- valstr))))
-
- (fset 'gnus-summary-make-display-table (lambda () nil))
- )
- ))
+ (cond
+ ((featurep 'xemacs)
+ (gnus-xmas-redefine))
+
+ ((featurep 'mule)
+ ;; Mule and new Emacs definitions
+
+ ;; [Note] Now there are three kinds of mule implementations,
+ ;; original MULE, XEmacs/mule and Emacs 20+ including
+ ;; 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
+ ;; Mule 2.3) is running.
+ ;; (featurep 'mule) is t when other mule variants are running.
+
+ ;; It is possible to detect XEmacs/mule by (featurep 'mule) and
+ ;; (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)
+
+ (when (boundp 'gnus-check-before-posting)
+ (setq gnus-check-before-posting
+ (delq 'long-lines
+ (delq 'control-chars gnus-check-before-posting))))
+
+ (defun gnus-summary-line-format-spec ()
+ (insert gnus-tmp-unread gnus-tmp-replied
+ gnus-tmp-score-char gnus-tmp-indentation)
+ (put-text-property
+ (point)
+ (progn
+ (insert
+ gnus-tmp-opening-bracket
+ (format "%4d: %-20s"
+ gnus-tmp-lines
+ (if (> (length gnus-tmp-name) 20)
+ (truncate-string-to-width gnus-tmp-name 20)
+ gnus-tmp-name))
+ gnus-tmp-closing-bracket)
+ (point))
+ 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)
+ transient-mark-mode
+ (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.
+
+(autoload 'gnus-alive-p "gnus-util")
+(autoload 'mm-disable-multibyte "mm-util")
+
+(defun gnus-x-splash ()
+ "Show a splash screen using a pixmap in the current buffer."
+ (interactive)
+ (unless window-system
+ (error "`gnus-x-splash' requires running on the window system"))
+ (switch-to-buffer (gnus-get-buffer-create (if (or (gnus-alive-p)
+ (interactive-p))
+ "*gnus-x-splash*"
+ gnus-group-buffer)))
+ (let ((inhibit-read-only t)
+ (file (nnheader-find-etc-directory "images/gnus/x-splash" t))
+ pixmap fcw fch width height fringes sbars left yoffset top ls)
+ (erase-buffer)
+ (sit-for 0) ;; Necessary for measuring the window size correctly.
+ (when (and file
+ (ignore-errors
+ (let ((coding-system-for-read 'raw-text))
+ (with-temp-buffer
+ (mm-disable-multibyte)
+ (insert-file-contents file)
+ (goto-char (point-min))
+ (setq pixmap (read (current-buffer)))))))
+ (setq fcw (float (frame-char-width))
+ fch (float (frame-char-height))
+ width (/ (car pixmap) fcw)
+ height (/ (cadr pixmap) fch)
+ fringes (if (fboundp 'window-fringes)
+ (eval '(window-fringes))
+ '(10 11 nil))
+ sbars (frame-parameter nil 'vertical-scroll-bars))
+ (cond ((eq sbars 'right)
+ (setq sbars
+ (cons 0 (/ (or (frame-parameter nil 'scroll-bar-width) 14)
+ fcw))))
+ (sbars
+ (setq sbars
+ (cons (/ (or (frame-parameter nil 'scroll-bar-width) 14)
+ fcw)
+ 0)))
+ (t
+ (setq sbars '(0 . 0))))
+ (setq left (- (* (round (/ (1- (/ (+ (window-width)
+ (car sbars) (cdr sbars)
+ (/ (+ (or (car fringes) 0)
+ (or (cadr fringes) 0))
+ fcw))
+ width))
+ 2))
+ width)
+ (car sbars)
+ (/ (or (car fringes) 0) fcw))
+ yoffset (cadr (window-edges))
+ top (max 0 (- (* (max (if (and (boundp 'tool-bar-mode)
+ tool-bar-mode
+ (not (featurep 'gtk))
+ (eq (frame-first-window)
+ (selected-window)))
+ 1 0)
+ (round (/ (1- (/ (+ (1- (window-height))
+ (* 2 yoffset))
+ height))
+ 2)))
+ height)
+ yoffset))
+ ls (/ (or line-spacing 0) fch)
+ height (max 0 (- height ls)))
+ (cond ((>= (- top ls) 1)
+ (insert
+ (propertize
+ " "
+ 'display `(space :width 0 :ascent 100))
+ "\n"
+ (propertize
+ " "
+ 'display `(space :width 0 :height ,(- top ls 1) :ascent 100))
+ "\n"))
+ ((> (- top ls) 0)
+ (insert
+ (propertize
+ " "
+ 'display `(space :width 0 :height ,(- top ls) :ascent 100))
+ "\n")))
+ (if (and (> width 0) (> left 0))
+ (insert (propertize
+ " "
+ 'display `(space :width ,left :height ,height :ascent 0)))
+ (setq width (+ width left)))
+ (when (> width 0)
+ (insert (propertize
+ " "
+ 'display `(space :width ,width :height ,height :ascent 0)
+ 'face `(gnus-splash :stipple ,pixmap))))
+ (goto-char (if (<= (- top ls) 0) (1- (point)) (point-min)))
+ (redraw-frame (selected-frame))
+ (sit-for 0))))
+
+;;; Image functions.
+
+(defun gnus-image-type-available-p (type)
+ (and (fboundp 'image-type-available-p)
+ (image-type-available-p type)
+ (if (fboundp 'display-images-p)
+ (display-images-p)
+ t)))
+
+(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))))
+ (ignore-errors
+ (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)
+(eval-and-compile
+ (if (fboundp 'set-process-plist)
+ (progn
+ (defalias 'gnus-set-process-plist 'set-process-plist)
+ (defalias 'gnus-process-plist 'process-plist)
+ (defalias 'gnus-process-get 'process-get)
+ (defalias 'gnus-process-put 'process-put))
+ (defun gnus-set-process-plist (process plist)
+ "Replace the plist of PROCESS with PLIST. Returns PLIST."
+ (put 'gnus-process-plist-internal process plist))
+
+ (defun gnus-process-plist (process)
+ "Return the plist of PROCESS."
+ ;; This form works but can't prevent the plist data from
+ ;; growing infinitely.
+ ;;(get 'gnus-process-plist-internal process)
+ (let* ((plist (symbol-plist 'gnus-process-plist-internal))
+ (tem (memq process plist)))
+ (prog1
+ (cadr tem)
+ ;; Remove it from the plist data.
+ (when tem
+ (if (eq plist tem)
+ (progn
+ (setcar plist (caddr plist))
+ (setcdr plist (or (cdddr plist) '(nil))))
+ (setcdr (nthcdr (- (length plist) (length tem) 1) plist)
+ (cddr tem)))))))
+
+ (defun gnus-process-get (process propname)
+ "Return the value of PROCESS' PROPNAME property.
+This is the last value stored with `(gnus-process-put PROCESS PROPNAME VALUE)'."
+ (plist-get (gnus-process-plist process) propname))
+
+ (defun gnus-process-put (process propname value)
+ "Change PROCESS' PROPNAME property to VALUE.
+It can be retrieved with `(gnus-process-get PROCESS PROPNAME)'."
+ (gnus-set-process-plist process
+ (plist-put (gnus-process-plist process)
+ propname value)))))
-;; Local Variables:
-;; byte-compile-warnings: nil
-;; End:
+(provide 'gnus-ems)
;;; gnus-ems.el ends here
projects / gnus / blobdiff