2 ;;; tm-image.el --- a tm-view content filter to display images in
3 ;;; XEmacs or Mule buffers
5 ;;; Copyright (C) 1995,1996 MORIOKA Tomohiko
7 ;;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
8 ;;; Maintainer: MORIOKA Tomohiko <morioka@jaist.ac.jp>
9 ;;; Created: 1995/12/15
11 ;;; $Id: tm-image.el,v 4.6 1996/02/13 17:56:43 morioka Exp $
13 ;;; Keywords: mail, news, MIME, multimedia, image, picture
15 ;;; This file is part of tm (Tools for MIME).
17 ;;; This program is free software; you can redistribute it and/or
18 ;;; modify it under the terms of the GNU General Public License as
19 ;;; published by the Free Software Foundation; either version 2, or
20 ;;; (at your option) any later version.
22 ;;; This program is distributed in the hope that it will be useful,
23 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
24 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
25 ;;; General Public License for more details.
27 ;;; You should have received a copy of the GNU General Public License
28 ;;; along with This program. If not, write to the Free Software
29 ;;; Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
32 ;;; If you use this program with Mule, please install bitmap
33 ;;; extension package. It is available from
34 ;;; ftp://etlport.etl.go.jp/pub/mule/contrib/bitmap.tar.gz
40 (cond ((string-match "XEmacs" emacs-version)
42 (require 'annotations)
44 (set-alist 'mime-viewer/content-filter-alist
45 "image/jpeg" (function mime-preview/filter-for-image))
47 (set-alist 'mime-viewer/content-filter-alist
48 "image/gif" (function mime-preview/filter-for-image))
50 (set-alist 'mime-viewer/content-filter-alist
51 "image/tiff" (function mime-preview/filter-for-image))
52 (set-alist 'mime-viewer/content-filter-alist
53 "image/x-tiff" (function mime-preview/filter-for-image))
55 (set-alist 'mime-viewer/content-filter-alist
56 "image/x-pic" (function mime-preview/filter-for-image))
58 (set-alist 'mime-viewer/content-filter-alist
59 "image/x-mag" (function mime-preview/filter-for-image))
61 (defvar tm-image/inline-image-types
62 '("image/jpeg" "image/gif" "image/tiff"
63 "image/x-tiff" "image/x-pic" "image/x-mag" "image/x-xbm"))
65 (defun bitmap-read-xbm (file)
68 (setq gl (make-glyph file))
69 (eq (image-instance-type (glyph-image-instance gl))
72 (make-annotation gl (point) 'text)
75 (defvar mime-preview/x-face-function
76 (function mime-preview/x-face-function-for-xemacs))
81 (defvar tm-image/inline-image-types '("image/x-mag" "image/x-xbm"))
83 (defvar mime-preview/x-face-function
84 (function mime-preview/x-face-function-for-mule))
87 (defvar mime-viewer/shell-command "/bin/sh")
88 (defvar mime-viewer/shell-arguments '("-c"))
90 (defvar mime-viewer/graphic-converter-alist
91 '(("image/jpeg" . "djpeg -color 256 < %s | ppmtoxpm > %s")
92 ("image/gif" . "giftopnm < %s | ppmtoxpm > %s")
93 ("image/tiff" . "tifftopnm < %s | ppmquant 256 | ppmtoxpm > %s")
94 ("image/x-tiff" . "tifftopnm < %s | ppmquant 256 | ppmtoxpm > %s")
95 ("image/x-pic" . "pictoppm < %s | ppmquant 256 | ppmtoxpm > %s")
96 ("image/x-mag" . "magtoppm < %s | ppmtoxpm > %s")
99 (defvar mime-viewer/x-face-to-xbm-command
100 (concat mime-viewer/x-face-to-pbm-command " | pbmtoxbm"))
102 (add-hook 'mime-viewer/content-header-filter-hook
103 mime-preview/x-face-function)
105 (defun mime-preview/x-face-function-for-xemacs ()
107 (narrow-to-region (point-min) (re-search-forward "^$" nil t))
108 (goto-char (point-min))
109 (if (re-search-forward "^X-Face:[ \t]*" nil t)
110 (let ((beg (match-end 0))
111 (end (rfc822/field-end))
113 (make-temp-name (expand-file-name "tmxf" mime/tmp-dir))
116 beg end "sh" nil 0 nil
119 mime-viewer/x-face-to-xbm-command
121 (while (not (file-exists-p xbm-file)))
122 (delete-region beg end)
123 (bitmap-read-xbm xbm-file)
125 (delete-file xbm-file)
129 (defun mime-preview/x-face-function-for-mule ()
131 (narrow-to-region (point-min) (re-search-forward "^$" nil t))
132 (goto-char (point-min))
133 (if (re-search-forward "^X-Face:[ \t]*" nil t)
134 (let ((p (match-beginning 0))
136 (end (rfc822/field-end))
139 (make-temp-name (expand-file-name "tmxf" mime/tmp-dir))
142 (if (< end (point-max))
147 beg end "sh" nil 0 nil
150 mime-viewer/x-face-to-xbm-command
152 (not (file-exists-p xbm-file))
155 (narrow-to-region p end)
156 (delete-region p end)
160 (bitmap-read-xbm xbm-file)
166 (string-equal (buffer-file-name buf) xbm-file)
169 (= (point-min) (point-max))
173 (while (re-search-forward "^." nil t)
174 (goto-char (match-beginning 0))
178 (delete-file xbm-file)
183 ;;; @ content filter for images
186 (defun mime-preview/filter-for-image (ctype params encoding)
187 (let* ((mode mime::preview/original-major-mode)
188 (m (assq mode mime-viewer/code-converter-alist))
189 (filter (assoc-value ctype mime-viewer/graphic-converter-alist))
192 (let* ((beg (point-min)) (end (point-max))
194 (make-temp-name (expand-file-name "tm" mime/tmp-dir)))
195 (xbm-file (concat orig-file ".xbm"))
197 ;;(remove-text-properties beg end '(face nil))
198 (mime/decode-region encoding beg end)
199 (write-region (point-min)(point-max) orig-file)
200 (delete-region (point-min)(point-max))
201 (message "Now translating, please wait...")
202 (apply (function call-process)
203 mime-viewer/shell-command nil nil nil
204 (append mime-viewer/shell-arguments
205 (list (format filter orig-file xbm-file)))
207 (setq gl (make-glyph xbm-file))
208 (setq annot (make-annotation gl (point) 'text))
210 (delete-file orig-file)
212 (delete-file xbm-file)
214 (goto-char (point-max))
216 (message "Translation done.")
218 (message (format "%s is not supported." ctype))
222 ;;; @ content filter for xbm
225 (defun mime-preview/filter-for-image/xbm (ctype params encoding)
226 (let* ((mode mime::preview/original-major-mode)
227 (m (assq mode mime-viewer/code-converter-alist))
228 (charset (assoc "charset" params))
229 (beg (point-min)) (end (point-max))
230 (xbm-file (make-temp-name (expand-file-name "tm" mime/tmp-dir)))
232 (remove-text-properties beg end '(face nil))
233 (mime/decode-region encoding beg end)
234 (write-region (point-min)(point-max) xbm-file)
235 (delete-region (point-min)(point-max))
236 (bitmap-read-xbm xbm-file)
237 (delete-file xbm-file)
240 (set-alist 'mime-viewer/content-filter-alist
241 "image/xbm" (function mime-preview/filter-for-image/xbm))
243 (set-alist 'mime-viewer/content-filter-alist
244 "image/x-xbm" (function mime-preview/filter-for-image/xbm))
252 (or (member ctype mime-viewer/default-showing-Content-Type-list)
253 (setq mime-viewer/default-showing-Content-Type-list
255 mime-viewer/default-showing-Content-Type-list))
257 tm-image/inline-image-types)
265 ;;; tm-image.el ends here