From 72b615491650f92cea4a9a358457d0a32cb8df81 Mon Sep 17 00:00:00 2001 From: tmorioka Date: Fri, 21 Feb 1997 06:43:51 +0000 Subject: [PATCH] *** empty log message *** --- mime-image.el | 226 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 226 insertions(+) create mode 100644 mime-image.el diff --git a/mime-image.el b/mime-image.el new file mode 100644 index 0000000..dfcfdf9 --- /dev/null +++ b/mime-image.el @@ -0,0 +1,226 @@ +;;; mime-image.el --- mime-view filter to display images + +;; Copyright (C) 1995,1996,1997 MORIOKA Tomohiko +;; Copyright (C) 1996 Dan Rich + +;; Author: MORIOKA Tomohiko +;; Dan Rich +;; Maintainer: MORIOKA Tomohiko +;; Created: 1995/12/15 +;; Renamed: 1997/2/21 from tm-image.el +;; Version: $Id: mime-image.el,v 0.1 1997-02-21 06:43:51 tmorioka Exp $ + +;; Keywords: image, picture, X-Face, MIME, multimedia, mail, news + +;; This file is part of XEmacs. + +;; This program 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. + +;; This program 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 XEmacs; see the file COPYING. If not, write to the +;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, +;; Boston, MA 02111-1307, USA. + +;;; Commentary: +;; If you use this program with MULE, please install +;; etl8x16-bitmap.bdf font included in tl package. + +;;; Code: + +(require 'mime-view) + +(cond (running-xemacs + (require 'images) + + (defun-maybe image-inline-p (format) + (or (memq format image-native-formats) + (find-if (function + (lambda (native) + (image-converter-chain format native) + )) + image-native-formats) + )) + + (image-register-netpbm-utilities) + (image-register-converter 'pic 'ppm "pictoppm") + (image-register-converter 'mag 'ppm "magtoppm") + + (defun bitmap-insert-xbm-file (file) + (let ((gl (make-glyph (list (cons 'x file)))) + (e (make-extent (point) (point))) + ) + (set-extent-end-glyph e gl) + )) + + ;; + ;; X-Face + ;; + (autoload 'highlight-headers "highlight-headers") + + (defun mime-preview/x-face-function-use-highlight-headers () + (highlight-headers (point-min) (re-search-forward "^$" nil t) t) + ) + + (add-hook 'mime-view-content-header-filter-hook + 'mime-preview/x-face-function-use-highlight-headers) + + ) + ((featurep 'mule) + ;; for MULE 2.* or mule merged EMACS + (require 'x-face-mule) + + (defvar image-native-formats '(xbm)) + + (defun-maybe image-inline-p (format) + (memq format image-native-formats) + ) + + (defun-maybe image-normalize (format data) + (and (eq format 'xbm) + (vector 'xbm ':data data) + )) + + ;; + ;; X-Face + ;; + (if (file-installed-p uncompface-program exec-path) + (add-hook 'mime-view-content-header-filter-hook + 'x-face-decode-message-header) + ) + )) + +(or (fboundp 'image-invalid-glyph-p) + (defsubst image-invalid-glyph-p (glyph) + (or (null (aref glyph 0)) + (null (aref glyph 2)) + (equal (aref glyph 2) "") + )) + ) + +(defvar mime-view-image-converter-alist nil) + +(mapcar (function + (lambda (rule) + (let ((ctype (car rule)) + (format (cdr rule)) + ) + (if (image-inline-p format) + (progn + (set-alist 'mime-view-content-filter-alist + ctype + (function mime-preview/filter-for-image)) + (set-alist 'mime-view-image-converter-alist + ctype format) + (add-to-list + 'mime-view-default-showing-Content-Type-list + ctype) + ) + )))) + '(("image/jpeg" . jpeg) + ("image/gif" . gif) + ("image/tiff" . tiff) + ("image/x-tiff" . tiff) + ("image/xbm" . xbm) + ("image/x-xbm" . xbm) + ("image/x-xpixmap" . xpm) + ("image/x-pic" . pic) + ("image/x-mag" . mag) + )) + +(defvar mime-view-ps-to-gif-command "pstogif") + + +;;; @ content filter for images +;;; +;; (for XEmacs 19.12 or later) + +(defun mime-preview/filter-for-image (ctype params encoding) + (let* ((mode mime::preview/original-major-mode) + (m (assq mode mime-view-code-converter-alist)) + (charset (assoc "charset" params)) + (beg (point-min)) (end (point-max)) + ) + (remove-text-properties beg end '(face nil)) + (message "Decoding image...") + (mime-decode-region beg end encoding) + (let* ((minor (assoc-value ctype mime-view-image-converter-alist)) + (gl (image-normalize minor (buffer-string))) + e) + (delete-region (point-min)(point-max)) + (cond ((image-invalid-glyph-p gl) + (setq gl nil) + (message "Invalid glyph!") + ) + ((eq (aref gl 0) 'xbm) + (let ((xbm-file + (make-temp-name (expand-file-name "tm" mime/tmp-dir)))) + (insert (aref gl 2)) + (write-region (point-min)(point-max) xbm-file) + (message "Decoding image...") + (delete-region (point-min)(point-max)) + (bitmap-insert-xbm-file xbm-file) + (delete-file xbm-file) + ) + (message "Decoding image... done") + ) + (t + (setq gl (make-glyph gl)) + (setq e (make-extent (point) (point))) + (set-extent-end-glyph e gl) + (message "Decoding image... done") + )) + ) + (insert "\n") + )) + + +;;; @ content filter for Postscript +;;; +;; (for XEmacs 19.14 or later) + +(defun mime-preview/filter-for-application/postscript (ctype params encoding) + (let* ((mode mime::preview/original-major-mode) + (m (assq mode mime-view-code-converter-alist)) + (beg (point-min)) (end (point-max)) + (file-base (make-temp-name (expand-file-name "tm" mime/tmp-dir))) + (ps-file (concat file-base ".ps")) + (gif-file (concat file-base ".gif")) + ) + (remove-text-properties beg end '(face nil)) + (message "Decoding Postscript...") + (mime-decode-region beg end encoding) + (write-region (point-min)(point-max) ps-file) + (message "Decoding Postscript...") + (delete-region (point-min)(point-max)) + (call-process mime-view-ps-to-gif-command nil nil nil ps-file) + (set-extent-end-glyph (make-extent (point) (point)) + (make-glyph (vector 'gif :file gif-file))) + (message "Decoding Postscript... done") + (delete-file ps-file) + (delete-file gif-file) + )) + +(set-alist 'mime-view-content-filter-alist + "application/postscript" + (function mime-preview/filter-for-application/postscript)) + +(if (featurep 'gif) + (add-to-list 'mime-view-default-showing-Content-Type-list + "application/postscript") + ) + + +;;; @ end +;;; + +(provide 'mime-image) + +;;; mime-image.el ends here -- 1.7.10.4