;;; smiley.el --- displaying smiley faces ;; Copyright (C) 2000, 2001, 2002, 2003 Free Software Foundation, Inc. ;; Author: Dave Love ;; Keywords: news mail multimedia ;; 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: ;; A re-written, simplified version of Wes Hardaker's XEmacs smiley.el ;; which might be merged back to smiley.el if we get an assignment for ;; that. We don't have assignments for the images smiley.el uses, but ;; I'm not sure we need that degree of rococoness and defaults like a ;; yellow background. Also, using PBM means we can display the images ;; more generally. -- fx ;;; Test smileys: :-) :-\ :-( :-/ ;;; Code: (eval-when-compile (require 'cl)) (require 'nnheader) (require 'gnus-art) (defgroup smiley nil "Turn :-)'s into real images." :group 'gnus-visual) ;; Maybe this should go. (defcustom smiley-data-directory (nnheader-find-etc-directory "smilies") "*Location of the smiley faces files." :type 'directory :group 'smiley) ;; The XEmacs version has a baroque, if not rococo, set of these. (defcustom smiley-regexp-alist '(("\\(:-?)\\)\\W" 1 "smile") ("\\(;-?)\\)\\W" 1 "blink") ("\\(:-]\\)\\W" 1 "forced") ("\\(8-)\\)\\W" 1 "braindamaged") ("\\(:-|\\)\\W" 1 "indifferent") ("\\(:-[/\\]\\)\\W" 1 "wry") ("\\(:-(\\)\\W" 1 "sad") ("\\(:-{\\)\\W" 1 "frown")) "*A list of regexps to map smilies to images. The elements are (REGEXP MATCH FILE), where MATCH is the submatch in regexp to replace with IMAGE. IMAGE is the name of a PBM file in `smiley-data-directory'." :type '(repeat (list regexp (integer :tag "Regexp match number") (string :tag "Image name"))) :set (lambda (symbol value) (set-default symbol value) (smiley-update-cache)) :initialize 'custom-initialize-default :group 'smiley) (defcustom gnus-smiley-file-types (let ((types (list "pbm"))) (when (gnus-image-type-available-p 'xpm) (push "xpm" types)) types) "*List of suffixes on picon file names to try." :type '(repeat string) :group 'smiley) (defvar smiley-cached-regexp-alist nil) (defun smiley-update-cache () (dolist (elt (if (symbolp smiley-regexp-alist) (symbol-value smiley-regexp-alist) smiley-regexp-alist)) (let ((types gnus-smiley-file-types) file type) (while (and (not file) (setq type (pop types))) (unless (file-exists-p (setq file (expand-file-name (concat (nth 2 elt) "." type) smiley-data-directory))) (setq file nil))) (when type (let ((image (gnus-create-image file (intern type) nil :ascent 'center))) (when image (push (list (car elt) (cadr elt) image) smiley-cached-regexp-alist))))))) (defvar smiley-mouse-map (let ((map (make-sparse-keymap))) (define-key map [down-mouse-2] 'ignore) ; override widget (define-key map [mouse-2] 'smiley-mouse-toggle-buffer) map)) ;;;###autoload (defun smiley-region (start end) "Replace in the region `smiley-regexp-alist' matches with corresponding images. A list of images is returned." (interactive "r") (when (gnus-graphic-display-p) (unless smiley-cached-regexp-alist (smiley-update-cache)) (save-excursion (let ((beg (or start (point-min))) group image images string) (dolist (entry smiley-cached-regexp-alist) (setq group (nth 1 entry) image (nth 2 entry)) (goto-char beg) (while (re-search-forward (car entry) end t) (setq string (match-string group)) (goto-char (match-end group)) (delete-region (match-beginning group) (match-end group)) (when image (push image images) (gnus-add-wash-type 'smiley) (gnus-add-image 'smiley image) (gnus-put-image image string 'smiley)))) images)))) ;;;###autoload (defun smiley-buffer (&optional buffer) "Run `smiley-region' at the buffer, specified in the argument or interactively. If there's no argument, do it at the current buffer" (interactive "bBuffer to run smiley-region: ") (save-excursion (if buffer (set-buffer (get-buffer buffer))) (smiley-region (point-min) (point-max)))) (defun smiley-toggle-buffer (&optional arg) "Toggle displaying smiley faces in article buffer. With arg, turn displaying on if and only if arg is positive." (interactive "P") (gnus-with-article-buffer (if (if (numberp arg) (> arg 0) (not (memq 'smiley gnus-article-wash-types))) (smiley-region (point-min) (point-max)) (gnus-delete-images 'smiley)))) (defun smiley-mouse-toggle-buffer (event) "Toggle displaying smiley faces. With arg, turn displaying on if and only if arg is positive." (interactive "e") (save-excursion (save-window-excursion (mouse-set-point event) (smiley-toggle-buffer)))) (provide 'smiley) ;;; arch-tag: 5beb161b-4321-40af-8ac9-876afb8ee818 ;;; smiley.el ends here