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[Emacs-diffs] Changes to emacs/lisp/gnus/gnus-ems.el [gnus-5_10-branch]
From: |
Andreas Schwab |
Subject: |
[Emacs-diffs] Changes to emacs/lisp/gnus/gnus-ems.el [gnus-5_10-branch] |
Date: |
Thu, 22 Jul 2004 13:20:37 -0400 |
Index: emacs/lisp/gnus/gnus-ems.el
diff -c /dev/null emacs/lisp/gnus/gnus-ems.el:1.17.2.1
*** /dev/null Thu Jul 22 16:46:17 2004
--- emacs/lisp/gnus/gnus-ems.el Thu Jul 22 16:45:47 2004
***************
*** 0 ****
--- 1,243 ----
+ ;;; gnus-ems.el --- functions for making Gnus work under different Emacsen
+ ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
+ ;; Free Software Foundation, Inc.
+
+ ;; Author: Lars Magne Ingebrigtsen <address@hidden>
+ ;; Keywords: news
+
+ ;; 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:
+
+ ;;; 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-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 (featurep 'xemacs)
+ (< emacs-major-version 20))
+ '("--**-" . "-----")
+ '("**" "--")))
+
+ (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")
+ ;; Fixme: shouldn't require message
+ (autoload 'message-text-with-property "message")
+
+ (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
+ (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-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
+ ((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")))))
+
+ (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.
+
+ (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-x-splash ()
+ "Show a splash screen using a pixmap in the current buffer."
+ (let ((dir (nnheader-find-etc-directory "gnus"))
+ pixmap file height beg i)
+ (save-excursion
+ (switch-to-buffer (gnus-get-buffer-create gnus-group-buffer))
+ (let ((buffer-read-only nil)
+ width height)
+ (erase-buffer)
+ (when (and dir
+ (file-exists-p (setq file
+ (expand-file-name "x-splash" dir))))
+ (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))
+ width (/ (cadr pixmap) (frame-char-width)))
+ (set-face-foreground 'gnus-splash "Brown")
+ (set-face-stipple 'gnus-splash pixmap)
+ (insert-char ?\n (* (/ (window-height) 2 height) height))
+ (setq i height)
+ (while (> i 0)
+ (insert-char ?\ (* (/ (window-width) 2 width) width))
+ (setq beg (point))
+ (insert-char ?\ width)
+ (set-text-properties beg (point) '(face gnus-splash))
+ (insert ?\n)
+ (decf i))
+ (goto-char (point-min))
+ (sit-for 0))))))
+
+ ;;; 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)
+
+ ;;; arch-tag: e7360b45-14b5-4171-aa39-69a44aed3cdb
+ ;;; gnus-ems.el ends here
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