1 ;;; tm-image.el --- tm-view filter to display images in XEmacs or MULE buffers
3 ;; Copyright (C) 1995,1996 MORIOKA Tomohiko
4 ;; Copyright (C) 1996 Dan Rich
6 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
7 ;; Dan Rich <drich@morpheus.corp.sgi.com>
8 ;; Maintainer: MORIOKA Tomohiko <morioka@jaist.ac.jp>
10 ;; Version: $Id: tm-image.el,v 7.14 1996/08/28 18:43:29 morioka Exp $
12 ;; Keywords: mail, news, MIME, multimedia, image, picture, X-Face
14 ;; This file is part of tm (Tools for MIME).
16 ;; This program is free software; you can redistribute it and/or
17 ;; modify it under the terms of the GNU General Public License as
18 ;; published by the Free Software Foundation; either version 2, or (at
19 ;; your option) any later version.
21 ;; This program is distributed in the hope that it will be useful, but
22 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
23 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
24 ;; General Public License for more details.
26 ;; You should have received a copy of the GNU General Public License
27 ;; along with this program; see the file COPYING. If not, write to
28 ;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
29 ;; Boston, MA 02111-1307, USA.
32 ;; If you use this program with MULE, please install
33 ;; etl8x16-bitmap.bdf font included in tl package.
40 (require 'annotations)
42 (set-alist 'mime-viewer/content-filter-alist
44 (if (featurep 'jpeg) ; Use built-in suport if available
45 (function mime-preview/filter-for-inline-image)
46 (function mime-preview/filter-for-image)
49 (set-alist 'mime-viewer/content-filter-alist
51 (if (featurep 'gif) ; Use built-in suport if available
52 (function mime-preview/filter-for-inline-image)
53 (function mime-preview/filter-for-image)
56 (set-alist 'mime-viewer/content-filter-alist
58 (if (featurep 'xpm) ; Use built-in suport if available
59 (function mime-preview/filter-for-inline-image)
60 (function mime-preview/filter-for-image)
63 (set-alist 'mime-viewer/content-filter-alist
64 "image/tiff" (function mime-preview/filter-for-image))
65 (set-alist 'mime-viewer/content-filter-alist
66 "image/x-tiff" (function mime-preview/filter-for-image))
68 (set-alist 'mime-viewer/content-filter-alist
69 "image/x-pic" (function mime-preview/filter-for-image))
71 (set-alist 'mime-viewer/content-filter-alist
72 "image/x-mag" (function mime-preview/filter-for-image))
74 (defvar tm-image/inline-image-types
77 '("image/jpeg" "image/gif" "image/tiff"
78 "image/x-tiff" "image/x-pic" "image/x-mag"
79 "image/x-xbm" "image/x-xpixmap")
81 '("application/postscript")
85 (defun bitmap-insert-xbm-file (file)
88 (setq gl (make-glyph file))
89 (eq (image-instance-type (glyph-image-instance gl))
92 (make-annotation gl (point) 'text)
95 (defvar mime-viewer/image-converter-alist
96 '(("image/jpeg" . jpeg)
99 ("image/x-xpixmap" . xpm)
102 (defvar mime-preview/x-face-function
103 (function mime-preview/x-face-function-use-highlight-headers))
105 (autoload 'highlight-headers "highlight-headers")
107 (defun mime-preview/x-face-function-use-highlight-headers ()
108 (highlight-headers (point-min) (re-search-forward "^$" nil t) t)
112 (require 'x-face-mule)
114 (defvar tm-image/inline-image-types '("image/x-mag" "image/x-xbm"))
116 (defvar mime-preview/x-face-function
117 (function x-face-decode-message-header))
120 (defvar mime-viewer/shell-command "/bin/sh")
121 (defvar mime-viewer/shell-arguments '("-c"))
123 (defvar mime-viewer/ps-to-gif-command "pstogif")
125 (defvar mime-viewer/graphic-converter-alist
126 '(("image/jpeg" . "djpeg -color 256 < %s | ppmtoxpm > %s")
127 ("image/gif" . "giftopnm < %s | ppmtoxpm > %s")
128 ("image/tiff" . "tifftopnm < %s | ppmquant 256 | ppmtoxpm > %s")
129 ("image/x-tiff" . "tifftopnm < %s | ppmquant 256 | ppmtoxpm > %s")
130 ("image/x-pic" . "pictoppm < %s | ppmquant 256 | ppmtoxpm > %s")
131 ("image/x-mag" . "magtoppm < %s | ppmtoxpm > %s")
138 (defvar mime-viewer/x-face-to-xbm-command
139 (concat mime-viewer/x-face-to-pbm-command " | pbmtoxbm"))
141 (if mime-preview/x-face-function
142 (add-hook 'mime-viewer/content-header-filter-hook
143 mime-preview/x-face-function)
147 ;;; @ content filter for images
149 ;; (for XEmacs 19.12 or later)
151 (defun mime-preview/filter-for-image (ctype params encoding)
152 (let* ((mode mime::preview/original-major-mode)
153 (m (assq mode mime-viewer/code-converter-alist))
154 (filter (assoc-value ctype mime-viewer/graphic-converter-alist))
157 (let* ((beg (point-min)) (end (point-max))
159 (make-temp-name (expand-file-name "tm" mime/tmp-dir)))
160 (xbm-file (concat orig-file ".xbm"))
162 ;;(remove-text-properties beg end '(face nil))
163 (mime-decode-region beg end encoding)
164 (write-region (point-min)(point-max) orig-file)
165 (delete-region (point-min)(point-max))
166 (message "Now translating, please wait...")
167 (apply (function call-process)
168 mime-viewer/shell-command nil nil nil
169 (append mime-viewer/shell-arguments
170 (list (format filter orig-file xbm-file)))
172 (setq gl (make-glyph xbm-file))
173 (setq annot (make-annotation gl (point) 'text))
175 (delete-file orig-file)
177 (delete-file xbm-file)
179 (goto-char (point-max))
181 (message "Translation done.")
183 (message (format "%s is not supported." ctype))
187 ;;; @ content filter for xbm
190 (defun mime-preview/filter-for-image/xbm (ctype params encoding)
191 (let* ((mode mime::preview/original-major-mode)
192 (m (assq mode mime-viewer/code-converter-alist))
193 (charset (assoc "charset" params))
194 (beg (point-min)) (end (point-max))
195 (xbm-file (make-temp-name (expand-file-name "tm" mime/tmp-dir)))
197 (remove-text-properties beg end '(face nil))
198 (mime-decode-region beg end encoding)
199 (write-region (point-min)(point-max) xbm-file)
200 (delete-region (point-min)(point-max))
201 (bitmap-insert-xbm-file xbm-file)
202 (delete-file xbm-file)
205 (set-alist 'mime-viewer/content-filter-alist
206 "image/xbm" (function mime-preview/filter-for-image/xbm))
208 (set-alist 'mime-viewer/content-filter-alist
209 "image/x-xbm" (function mime-preview/filter-for-image/xbm))
212 ;;; @ content filter for support in-line image types
214 ;; (for XEmacs 19.14 or later)
216 (defun mime-preview/filter-for-inline-image (ctype params encoding)
217 (let* ((mode mime::preview/original-major-mode)
218 (m (assq mode mime-viewer/code-converter-alist))
219 (charset (assoc "charset" params))
220 (beg (point-min)) (end (point-max))
222 (remove-text-properties beg end '(face nil))
223 (mime-decode-region beg end encoding)
224 (let ((data (buffer-string))
225 (minor (assoc-value ctype mime-viewer/image-converter-alist))
227 (delete-region (point-min)(point-max))
229 (setq gl (make-glyph (vector minor :data data)))
230 (eq (image-instance-type (glyph-image-instance gl))
233 (make-annotation gl (point) 'text)
239 ;;; @ content filter for Postscript
241 ;; (for XEmacs 19.14 or later)
243 (defun mime-preview/filter-for-application/postscript (ctype params encoding)
244 (let* ((mode mime::preview/original-major-mode)
245 (m (assq mode mime-viewer/code-converter-alist))
246 (beg (point-min)) (end (point-max))
247 (file-base (make-temp-name (expand-file-name "tm" mime/tmp-dir)))
248 (ps-file (concat file-base ".ps"))
249 (gif-file (concat file-base ".gif"))
251 (remove-text-properties beg end '(face nil))
252 (mime-decode-region beg end encoding)
253 (write-region (point-min)(point-max) ps-file)
254 (delete-region (point-min)(point-max))
255 (call-process mime-viewer/ps-to-gif-command nil nil nil ps-file)
258 (setq gl (make-glyph (vector 'gif :file gif-file)))
259 (eq (image-instance-type (glyph-image-instance gl))
262 (make-annotation gl (point) 'text)
264 (delete-file ps-file)
265 (delete-file gif-file)
268 (set-alist 'mime-viewer/content-filter-alist
269 "application/postscript"
270 (function mime-preview/filter-for-application/postscript))
278 (or (member ctype mime-viewer/default-showing-Content-Type-list)
279 (setq mime-viewer/default-showing-Content-Type-list
281 mime-viewer/default-showing-Content-Type-list))
283 tm-image/inline-image-types)
291 ;;; tm-image.el ends here