;;; smiley.el --- displaying smiley faces
-;; Copyright (C) 1996,97,98,99 Free Software Foundation, Inc.
+;; Copyright (C) 1996, 1997, 1998, 1999, 2000
+;; Free Software Foundation, Inc.
;; Author: Wes Hardaker <hardaker@ece.ucdavis.edu>
;; Keywords: fun
;; The smilies were drawn by Joe Reiss <jreiss@vt.edu>.
-(require 'annotations)
-(require 'messagexmas)
+;;; Code:
+
(require 'cl)
(require 'custom)
+(eval-and-compile
+ (when (featurep 'xemacs)
+ (require 'annotations)
+ (require 'messagexmas)))
+
(defgroup smiley nil
- "Turn :-)'s into real images (XEmacs)."
+ "Turn :-)'s into real images."
:group 'gnus-visual)
-(defcustom smiley-data-directory (message-xmas-find-glyph-directory "smilies")
+;; FIXME: Where is the directory when using Emacs?
+(defcustom smiley-data-directory
+ (if (featurep 'xemacs)
+ (message-xmas-find-glyph-directory "smilies")
+ "/usr/local/lib/xemacs/xemacs-packages/etc/smilies")
"*Location of the smiley faces files."
:type 'directory
:group 'smiley)
:group 'smiley)
(defvar smiley-glyph-cache nil)
-(defvar smiley-running-xemacs (string-match "XEmacs" emacs-version))
(defvar smiley-map (make-sparse-keymap "smiley-keys")
"Keymap to toggle smiley states.")
["Toggle All Smilies" (smiley-toggle-extents ,e) t])))
(defun smiley-create-glyph (smiley pixmap)
- (and
- smiley-running-xemacs
- (or
- (cdr-safe (assoc pixmap smiley-glyph-cache))
- (let* ((xpm-color-symbols
- (and (featurep 'xpm)
- (append `(("flesh" ,smiley-flesh-color)
- ("features" ,smiley-features-color)
- ("tongue" ,smiley-tongue-color))
- xpm-color-symbols)))
- (glyph (make-glyph
- (list
- (cons 'x (expand-file-name pixmap smiley-data-directory))
- (cons 'mswindows
- (expand-file-name pixmap smiley-data-directory))
- (cons 'tty smiley)))))
- (setq smiley-glyph-cache (cons (cons pixmap glyph) smiley-glyph-cache))
- (set-glyph-face glyph 'default)
- glyph))))
+ (or
+ (cdr-safe (assoc pixmap smiley-glyph-cache))
+ (let* ((xpm-color-symbols
+ (and (featurep 'xpm)
+ (append `(("flesh" ,smiley-flesh-color)
+ ("features" ,smiley-features-color)
+ ("tongue" ,smiley-tongue-color))
+ xpm-color-symbols)))
+ (glyph (make-glyph
+ (list
+ (cons (if (featurep 'gtk) 'gtk 'x)
+ (expand-file-name pixmap smiley-data-directory))
+ (cons 'mswindows
+ (expand-file-name pixmap smiley-data-directory))
+ (cons 'tty smiley)))))
+ (setq smiley-glyph-cache (cons (cons pixmap glyph) smiley-glyph-cache))
+ (set-glyph-face glyph 'default)
+ glyph)))
+
+(defun smiley-create-glyph-ems (smiley pixmap)
+ (condition-case e
+ (create-image (expand-file-name pixmap smiley-data-directory))
+ (error nil)))
+
;;;###autoload
(defun smiley-region (beg end)
(reveal-annotation ant)
(set-extent-property ext 'invisible t)))))))
+;; FIXME::
+(defun smiley-toggle-extent-ems (event)
+ "Toggle smiley at given point.
+Note -- this function hasn't been implemented yet."
+ (interactive "e")
+ (error "This function hasn't been implemented yet"))
+
(defun smiley-toggle-extents (e)
(interactive "e")
(map-extents
nil))
(event-buffer e)))
+;; FIXME::
+(defun smiley-toggle-extents-ems (e)
+ (interactive "e")
+ (error "This function hasn't been implemented yet"))
+
;;;###autoload
(defun smiley-buffer (&optional buffer st nd)
(interactive)
- (when (featurep '(or x mswindows))
+ (when (featurep '(or x gtk mswindows))
(save-excursion
(when buffer
(set-buffer buffer))
(make-annotation ")" end 'text))
(goto-char end)))))))))
+;; FIXME: No popup menu, no customized color
+(defun smiley-buffer-ems (&optional buffer st nd)
+ (interactive)
+ (when window-system
+ (save-excursion
+ (when buffer
+ (set-buffer buffer))
+ (let ((buffer-read-only nil)
+ (alist (if (symbolp smiley-regexp-alist)
+ (symbol-value smiley-regexp-alist)
+ smiley-regexp-alist))
+ (case-fold-search nil)
+ entry regexp beg group file)
+ (dolist (overlay (overlays-in (or st (point-min))
+ (or nd (point-max))))
+ (when (overlay-get overlay 'smiley)
+ (remove-text-properties (overlay-start overlay)
+ (overlay-end overlay) '(display))
+ (delete-overlay overlay)))
+ (goto-char (or st (point-min)))
+ (setq beg (point))
+ ;; loop through alist
+ (while (setq entry (pop alist))
+ (setq regexp (car entry)
+ group (cadr entry)
+ file (caddr entry))
+ (goto-char beg)
+ (while (re-search-forward regexp nd t)
+ (let* ((start (match-beginning group))
+ (end (match-end group))
+ (glyph (smiley-create-glyph nil file))
+ (overlay (make-overlay start end)))
+ (when glyph
+ (add-text-properties start end
+ `(display ,glyph))
+ (overlay-put overlay 'smiley glyph)
+ (goto-char end)))))))))
+
(defun smiley-end-paren-p (start end)
"Try to guess whether the current smiley is an end-paren smiley."
(save-excursion
(set-extent-property (cdar on) 'invisible nil)
(setq on (cdr on))))))
+;; Simply removing all smiley if existing.
+;; FIXME: make it work as the one in XEmacs.
+(defun smiley-toggle-buffer-ems (&optional arg buffer st nd)
+ "Toggle displaying smiley faces.
+With arg, turn displaying on if and only if arg is positive."
+ (interactive "P")
+ (save-excursion
+ (when buffer
+ (set-buffer buffer))
+ (let (found)
+ (dolist (overlay (overlays-in (or st (point-min))
+ (or nd (point-max))))
+ (when (overlay-get overlay 'smiley)
+ (remove-text-properties (overlay-start overlay)
+ (overlay-end overlay) '(display))
+ (setq found t)))
+ (unless found
+ (smiley-buffer buffer st nd)))))
+
+(unless (featurep 'xemacs)
+ (defalias 'smiley-create-glyph 'smiley-create-glyph-ems)
+ (defalias 'smiley-toggle-extent 'smiley-toggle-extent-ems)
+ (defalias 'smiley-toggle-extents 'smiley-toggle-extents-ems)
+ (defalias 'smiley-buffer 'smiley-buffer-ems)
+ (defalias 'smiley-toggle-buffer 'smiley-toggle-buffer-ems))
+
(defvar gnus-article-buffer)
;;;###autoload
(defun gnus-smiley-display (&optional arg)
With arg, turn displaying on if and only if arg is positive."
(interactive "P")
(save-excursion
- (set-buffer gnus-article-buffer)
- (save-restriction
- (widen)
- (article-goto-body)
+ (article-goto-body)
+ (let (buffer-read-only)
(smiley-toggle-buffer arg (current-buffer) (point) (point-max)))))
(provide 'smiley)