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comparison lisp/tm/tm-image.el @ 4:b82b59fe008d r19-15b3

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date Mon, 13 Aug 2007 08:46:56 +0200
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3:30df88044ec6 4:b82b59fe008d
1 ;;; tm-image.el --- tm-view filter to display images in XEmacs or MULE buffers
2
3 ;; Copyright (C) 1995,1996 MORIOKA Tomohiko
4 ;; Copyright (C) 1996 Dan Rich
5
6 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
7 ;; Dan Rich <drich@morpheus.corp.sgi.com>
8 ;; Maintainer: MORIOKA Tomohiko <morioka@jaist.ac.jp>
9 ;; Created: 1995/12/15
10 ;; Version: $Id: tm-image.el,v 1.1.1.1 1996/12/18 03:55:32 steve Exp $
11
12 ;; Keywords: mail, news, MIME, multimedia, image, picture, X-Face
13
14 ;; This file is part of tm (Tools for MIME).
15
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.
20
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.
25
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.
30
31 ;;; Commentary:
32 ;; If you use this program with MULE, please install
33 ;; etl8x16-bitmap.bdf font included in tl package.
34
35 ;;; Code:
36
37 (require 'tm-view)
38
39 (cond (running-xemacs
40 (require 'annotations)
41
42 (set-alist 'mime-viewer/content-filter-alist
43 "image/jpeg"
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)
47 ))
48
49 (set-alist 'mime-viewer/content-filter-alist
50 "image/gif"
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)
54 ))
55
56 (set-alist 'mime-viewer/content-filter-alist
57 "image/x-xpixmap"
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)
61 ))
62
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))
67
68 (set-alist 'mime-viewer/content-filter-alist
69 "image/x-pic" (function mime-preview/filter-for-image))
70
71 (set-alist 'mime-viewer/content-filter-alist
72 "image/x-mag" (function mime-preview/filter-for-image))
73
74 (defvar tm-image/inline-image-types
75 (if (featurep 'gif)
76 (nconc
77 '("image/jpeg" "image/gif" "image/tiff"
78 "image/x-tiff" "image/x-pic" "image/x-mag"
79 "image/x-xbm" "image/x-xpixmap")
80 (if (featurep 'gif)
81 '("application/postscript")
82 )
83 )))
84
85 (defun bitmap-insert-xbm-file (file)
86 (let (gl)
87 (while (progn
88 (setq gl (make-glyph file))
89 (eq (image-instance-type (glyph-image-instance gl))
90 'text)
91 ))
92 (make-annotation gl (point) 'text)
93 ))
94
95 (defvar mime-viewer/image-converter-alist
96 '(("image/jpeg" . jpeg)
97 ("image/gif" . gif)
98 ("image/x-png" . png)
99 ("image/x-xpixmap" . xpm)
100 ))
101
102 (defvar mime-preview/x-face-function
103 (function mime-preview/x-face-function-use-highlight-headers))
104
105 (autoload 'highlight-headers "highlight-headers")
106
107 (defun mime-preview/x-face-function-use-highlight-headers ()
108 (highlight-headers (point-min) (re-search-forward "^$" nil t) t)
109 )
110 )
111 ((featurep 'mule)
112 ;; for MULE 2.* or mule merged EMACS
113 (require 'x-face-mule)
114
115 (defvar tm-image/inline-image-types '("image/x-mag" "image/x-xbm"))
116
117 (defvar mime-preview/x-face-function
118 (function x-face-decode-message-header))
119 ))
120
121 (defvar mime-viewer/shell-command "/bin/sh")
122 (defvar mime-viewer/shell-arguments '("-c"))
123
124 (defvar mime-viewer/ps-to-gif-command "pstogif")
125
126 (defvar mime-viewer/graphic-converter-alist
127 '(("image/jpeg" . "djpeg -color 256 < %s | ppmtoxpm > %s")
128 ("image/gif" . "giftopnm < %s | ppmtoxpm > %s")
129 ("image/tiff" . "tifftopnm < %s | ppmquant 256 | ppmtoxpm > %s")
130 ("image/x-tiff" . "tifftopnm < %s | ppmquant 256 | ppmtoxpm > %s")
131 ("image/x-pic" . "pictoppm < %s | ppmquant 256 | ppmtoxpm > %s")
132 ("image/x-mag" . "magtoppm < %s | ppmtoxpm > %s")
133 ))
134
135
136 ;;; @ X-Face
137 ;;;
138
139 (defvar mime-viewer/x-face-to-xbm-command
140 (concat mime-viewer/x-face-to-pbm-command " | pbmtoxbm"))
141
142 (if mime-preview/x-face-function
143 (add-hook 'mime-viewer/content-header-filter-hook
144 mime-preview/x-face-function)
145 )
146
147
148 ;;; @ content filter for images
149 ;;;
150 ;; (for XEmacs 19.12 or later)
151
152 (defun mime-preview/filter-for-image (ctype params encoding)
153 (let* ((mode mime::preview/original-major-mode)
154 (m (assq mode mime-viewer/code-converter-alist))
155 (filter (assoc-value ctype mime-viewer/graphic-converter-alist))
156 )
157 (if filter
158 (let* ((beg (point-min)) (end (point-max))
159 (orig-file
160 (make-temp-name (expand-file-name "tm" mime/tmp-dir)))
161 (xbm-file (concat orig-file ".xbm"))
162 gl annot)
163 ;;(remove-text-properties beg end '(face nil))
164 (mime-decode-region beg end encoding)
165 (write-region (point-min)(point-max) orig-file)
166 (delete-region (point-min)(point-max))
167 (message "Now translating, please wait...")
168 (apply (function call-process)
169 mime-viewer/shell-command nil nil nil
170 (append mime-viewer/shell-arguments
171 (list (format filter orig-file xbm-file)))
172 )
173 (setq gl (make-glyph xbm-file))
174 (setq annot (make-annotation gl (point) 'text))
175 (unwind-protect
176 (delete-file orig-file)
177 (condition-case nil
178 (delete-file xbm-file)
179 (error nil)))
180 (goto-char (point-max))
181 (insert "\n")
182 (message "Translation done.")
183 )
184 (message (format "%s is not supported." ctype))
185 )))
186
187
188 ;;; @ content filter for xbm
189 ;;;
190
191 (defun mime-preview/filter-for-image/xbm (ctype params encoding)
192 (let* ((mode mime::preview/original-major-mode)
193 (m (assq mode mime-viewer/code-converter-alist))
194 (charset (assoc "charset" params))
195 (beg (point-min)) (end (point-max))
196 (xbm-file (make-temp-name (expand-file-name "tm" mime/tmp-dir)))
197 )
198 (remove-text-properties beg end '(face nil))
199 (mime-decode-region beg end encoding)
200 (write-region (point-min)(point-max) xbm-file)
201 (delete-region (point-min)(point-max))
202 (bitmap-insert-xbm-file xbm-file)
203 (delete-file xbm-file)
204 ))
205
206 (set-alist 'mime-viewer/content-filter-alist
207 "image/xbm" (function mime-preview/filter-for-image/xbm))
208
209 (set-alist 'mime-viewer/content-filter-alist
210 "image/x-xbm" (function mime-preview/filter-for-image/xbm))
211
212
213 ;;; @ content filter for support in-line image types
214 ;;;
215 ;; (for XEmacs 19.14 or later)
216
217 (defun mime-preview/filter-for-inline-image (ctype params encoding)
218 (let* ((mode mime::preview/original-major-mode)
219 (m (assq mode mime-viewer/code-converter-alist))
220 (charset (assoc "charset" params))
221 (beg (point-min)) (end (point-max))
222 )
223 (remove-text-properties beg end '(face nil))
224 (mime-decode-region beg end encoding)
225 (let ((data (buffer-string))
226 (minor (assoc-value ctype mime-viewer/image-converter-alist))
227 gl)
228 (delete-region (point-min)(point-max))
229 (while (progn
230 (setq gl (make-glyph (vector minor :data data)))
231 (eq (image-instance-type (glyph-image-instance gl))
232 'text)
233 ))
234 (make-annotation gl (point) 'text)
235 )
236 (insert "\n")
237 ))
238
239
240 ;;; @ content filter for Postscript
241 ;;;
242 ;; (for XEmacs 19.14 or later)
243
244 (defun mime-preview/filter-for-application/postscript (ctype params encoding)
245 (let* ((mode mime::preview/original-major-mode)
246 (m (assq mode mime-viewer/code-converter-alist))
247 (beg (point-min)) (end (point-max))
248 (file-base (make-temp-name (expand-file-name "tm" mime/tmp-dir)))
249 (ps-file (concat file-base ".ps"))
250 (gif-file (concat file-base ".gif"))
251 )
252 (remove-text-properties beg end '(face nil))
253 (mime-decode-region beg end encoding)
254 (write-region (point-min)(point-max) ps-file)
255 (delete-region (point-min)(point-max))
256 (call-process mime-viewer/ps-to-gif-command nil nil nil ps-file)
257 (let (gl)
258 (while (progn
259 (setq gl (make-glyph (vector 'gif :file gif-file)))
260 (eq (image-instance-type (glyph-image-instance gl))
261 'text)
262 ))
263 (make-annotation gl (point) 'text)
264 )
265 (delete-file ps-file)
266 (delete-file gif-file)
267 ))
268
269 (set-alist 'mime-viewer/content-filter-alist
270 "application/postscript"
271 (function mime-preview/filter-for-application/postscript))
272
273
274 ;;; @ setting
275 ;;;
276
277 (mapcar
278 (lambda (ctype)
279 (or (member ctype mime-viewer/default-showing-Content-Type-list)
280 (setq mime-viewer/default-showing-Content-Type-list
281 (cons ctype
282 mime-viewer/default-showing-Content-Type-list))
283 ))
284 tm-image/inline-image-types)
285
286
287 ;;; @ end
288 ;;;
289
290 (provide 'tm-image)
291
292 ;;; tm-image.el ends here