X-Git-Url: http://git.chise.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=lisp%2Fgnus-ems.el;h=1ab143fcb6524451e0fee5aaba88d45363a50c26;hb=85be3726901ca453647897e26330fee8aa25d8c0;hp=8cfa6e2a3cfa14fae0db21212ffd81ee2868eeae;hpb=30d9f23f0291edcefeca1958befadb992d2982b5;p=elisp%2Fgnus.git- diff --git a/lisp/gnus-ems.el b/lisp/gnus-ems.el index 8cfa6e2..1ab143f 100644 --- a/lisp/gnus-ems.el +++ b/lisp/gnus-ems.el @@ -1,7 +1,10 @@ -;;; gnus-ems.el --- functions for making Gnus work under different Emacsen -;; Copyright (C) 1995,96,97,98,99 Free Software Foundation, Inc. +;;; gnus-ems.el --- functions for making Semi-gnus work under different Emacsen + +;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, +;; 2004, 2005 Free Software Foundation, Inc. ;; Author: Lars Magne Ingebrigtsen +;; Tatsuya Ichikawa ;; Keywords: news ;; This file is part of GNU Emacs. @@ -18,141 +21,142 @@ ;; 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. -(defvar gnus-xemacs (string-match "XEmacs\\|Lucid" emacs-version) - "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")) - -;;; Mule functions. + (autoload 'gnus-get-buffer-create "gnus") + (autoload 'nnheader-find-etc-directory "nnheader")) -(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)))) +(autoload 'smiley-region "smiley") -(eval-and-compile - (if (string-match "XEmacs\\|Lucid" emacs-version) - nil +(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))))) - (defvar gnus-mouse-face-prop 'mouse-face - "Property used for highlighting mouse regions.")) - - (cond - ((string-match "XEmacs\\|Lucid" emacs-version) - (gnus-xmas-define)) - - ((boundp 'MULE) - (provide 'gnusutil)))) - -(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 - (unless (fboundp (car funcs)) - (fset (car funcs) 'gnus-dummy-func)) - (setq funcs (cdr funcs))))))) +;;; Mule functions. (eval-and-compile - (let ((case-fold-search t)) - (cond - ((string-match "windows-nt\\|os/2\\|emx" (symbol-name system-type)) - (setq nnheader-file-name-translation-alist - (append nnheader-file-name-translation-alist - '((?: . ?_) - (?+ . ?-)))))))) - -(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) + (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 - ((string-match "XEmacs\\|Lucid" emacs-version) + ((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 beta version of Emacs including - ;; some mule features. Unfortunately these API are different. In - ;; particular, Emacs (including original MULE) and XEmacs are - ;; quite different. - ;; 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 every mule variants are running. - - ;; These implementations may be able to share between original - ;; MULE and beta version of new Emacs. In addition, it is able to - ;; detect XEmacs/mule by (featurep 'mule) and to check variable - ;; `emacs-version'. In this case, implementation for XEmacs/mule - ;; may be able to share between XEmacs and XEmacs/mule. + ;; [Note] Now there are two kinds of mule implementations, + ;; XEmacs/mule and Emacs 20+ including Mule features. + ;; Unfortunately these APIs are different. In particular, Emacs + ;; and XEmacs are quite different. However, this version of Gnus + ;; doesn't support anything other than XEmacs 21+ and Emacs 21+. + + ;; Predicate to check is the following: + ;; (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.") - (fset 'gnus-max-width-function 'gnus-mule-max-width-function) - (fset 'gnus-summary-set-display-table (lambda ())) + + (defalias 'gnus-summary-set-display-table (lambda ())) + + (if (fboundp 'truncate-string-to-width) + (fset 'gnus-truncate-string 'truncate-string-to-width) + (fset 'gnus-truncate-string 'truncate-string)) (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")) - ))) + )) + (when (featurep 'mule) + (defun gnus-tilde-max-form (el max-width) + "Return a form that limits EL to MAX-WIDTH." + (let ((max (abs max-width))) + (if (symbolp el) + (if (< max-width 0) + `(let ((width (string-width ,el))) + (gnus-truncate-string ,el width (- width ,max))) + `(gnus-truncate-string ,el ,max)) + (if (< max-width 0) + `(let* ((val (eval ,el)) + (width (string-width val))) + (gnus-truncate-string val width (- width ,max))) + `(let ((val (eval ,el))) + (gnus-truncate-string val ,max)))))) + + (defun gnus-tilde-cut-form (el cut-width) + "Return a form that cuts CUT-WIDTH off of EL." + (let ((cut (abs cut-width))) + (if (symbolp el) + (if (< cut-width 0) + `(gnus-truncate-string ,el (- (string-width ,el) ,cut)) + `(gnus-truncate-string ,el (string-width ,el) ,cut)) + (if (< cut-width 0) + `(let ((val (eval ,el))) + (gnus-truncate-string val (- (string-width val) ,cut))) + `(let ((val (eval ,el))) + (gnus-truncate-string val (string-width val) ,cut)))))) + )) + +;; 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." @@ -161,15 +165,9 @@ (boundp 'mark-active) mark-active)) -(defun gnus-add-minor-mode (mode name map) - (if (fboundp 'add-minor-mode) - (add-minor-mode mode name map) - (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." @@ -177,18 +175,21 @@ 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 (concat dir "x-splash")))) - (with-temp-buffer - (insert-file-contents file) - (goto-char (point-min)) - (ignore-errors - (setq pixmap (read (current-buffer)))))) + (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-as-binary file) + (goto-char (point-min)) + (ignore-errors + (setq pixmap (read (current-buffer))))))) (when pixmap - (unless (facep 'gnus-splash) - (make-face 'gnus-splash)) + (make-face 'gnus-splash) (setq height (/ (car pixmap) (frame-char-height)) width (/ (cadr pixmap) (frame-char-width))) (set-face-foreground 'gnus-splash "Brown") @@ -196,19 +197,102 @@ (insert-char ?\n (* (/ (window-height) 2 height) height)) (setq i height) (while (> i 0) - (insert-char ? (* (/ (window-width) 2 width) width)) + (insert-char ?\ (* (/ (window-width) 2 width) width)) (setq beg (point)) - (insert-char ? width) + (insert-char ?\ width) (set-text-properties beg (point) '(face gnus-splash)) - (insert "\n") + (insert ?\n) (decf i)) (goto-char (point-min)) (sit-for 0)))))) -(provide 'gnus-ems) +;;; 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)))))) + +(defun-maybe assoc-ignore-case (key alist) + "Like `assoc', but assumes KEY is a string and ignores case when comparing." + (setq key (downcase key)) + (let (element) + (while (and alist (not element)) + (if (equal key (downcase (car (car alist)))) + (setq element (car alist))) + (setq alist (cdr alist))) + element)) + + +;;; Language support staffs. + +(defvar-maybe current-language-environment "English" + "The language environment.") + +(defvar-maybe language-info-alist nil + "Alist of language environment definitions.") + +(defun-maybe get-language-info (lang-env key) + "Return information listed under KEY for language environment LANG-ENV." + (if (symbolp lang-env) + (setq lang-env (symbol-name lang-env))) + (let ((lang-slot (assoc-ignore-case lang-env language-info-alist))) + (if lang-slot + (cdr (assq key (cdr lang-slot)))))) + +(defun-maybe set-language-info (lang-env key info) + "Modify part of the definition of language environment LANG-ENV." + (if (symbolp lang-env) + (setq lang-env (symbol-name lang-env))) + (let (lang-slot key-slot) + (setq lang-slot (assoc lang-env language-info-alist)) + (if (null lang-slot) ; If no slot for the language, add it. + (setq lang-slot (list lang-env) + language-info-alist (cons lang-slot language-info-alist))) + (setq key-slot (assq key lang-slot)) + (if (null key-slot) ; If no slot for the key, add it. + (progn + (setq key-slot (list key)) + (setcdr lang-slot (cons key-slot (cdr lang-slot))))) + (setcdr key-slot info))) -;; Local Variables: -;; byte-compile-warnings: '(redefine callargs) -;; End: +(provide 'gnus-ems) ;;; gnus-ems.el ends here