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;;; smiley.el --- displaying smiley faces
;; Copyright (C) 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
;; Author: Dave Love <fx@gnu.org>
;; 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 "images/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."
:version "22.1"
: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
|
