mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-11-27 07:37:33 +00:00
153 lines
4.4 KiB
EmacsLisp
153 lines
4.4 KiB
EmacsLisp
;;; iimage.el --- Inline image minor mode.
|
|
|
|
;; Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
|
|
|
|
;; Author: KOSEKI Yoshinori <kose@meadowy.org>
|
|
;; Maintainer: KOSEKI Yoshinori <kose@meadowy.org>
|
|
;; Keywords: multimedia
|
|
|
|
;; This file is part of GNU Emacs.
|
|
|
|
;; GNU Emacs 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.
|
|
|
|
;; GNU Emacs 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 Emacs; see the file COPYING. If not, write to the
|
|
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
;; Boston, MA 02110-1301, USA.
|
|
|
|
;;; Commentary:
|
|
|
|
;; Iimage is a minor mode that displays images, when image-filename
|
|
;; exists in the buffer.
|
|
;; http://www.netlaputa.ne.jp/~kose/Emacs/iimage.html
|
|
;;
|
|
;; Add to your `~/.emacs':
|
|
;; (autoload 'iimage-mode "iimage" "Support Inline image minor mode." t)
|
|
;; (autoload 'turn-on-iimage-mode "iimage" "Turn on Inline image minor mode." t)
|
|
;;
|
|
;; ** Display images in *Info* buffer.
|
|
;;
|
|
;; (add-hook 'info-mode-hook 'turn-on-iimage-mode)
|
|
;;
|
|
;; .texinfo: @file{file://foo.png}
|
|
;; .info: `file://foo.png'
|
|
;;
|
|
;; ** Display images in Wiki buffer.
|
|
;;
|
|
;; (add-hook 'wiki-mode-hook 'turn-on-iimage-mode)
|
|
;;
|
|
;; wiki-file: [[foo.png]]
|
|
|
|
;;; Code:
|
|
|
|
(eval-when-compile
|
|
(require 'image-file))
|
|
|
|
(defgroup iimage nil
|
|
"Support for inline images."
|
|
:version "22.1"
|
|
:group 'image)
|
|
|
|
(defconst iimage-version "1.1")
|
|
(defvar iimage-mode nil)
|
|
(defvar iimage-mode-map nil)
|
|
|
|
;; Set up key map.
|
|
(unless iimage-mode-map
|
|
(setq iimage-mode-map (make-sparse-keymap))
|
|
(define-key iimage-mode-map "\C-l" 'iimage-recenter))
|
|
|
|
(defun iimage-recenter (&optional arg)
|
|
"Re-draw images and recenter."
|
|
(interactive "P")
|
|
(iimage-mode-buffer 0)
|
|
(iimage-mode-buffer 1)
|
|
(recenter arg))
|
|
|
|
(defvar iimage-mode-image-filename-regex
|
|
(concat "[-+./_0-9a-zA-Z]+\\."
|
|
(regexp-opt (nconc (mapcar #'upcase
|
|
image-file-name-extensions)
|
|
image-file-name-extensions)
|
|
t)))
|
|
|
|
(defvar iimage-mode-image-regex-alist
|
|
`((,(concat "\\(`?file://\\|\\[\\[\\|<\\|`\\)?"
|
|
"\\(" iimage-mode-image-filename-regex "\\)"
|
|
"\\(\\]\\]\\|>\\|'\\)?") . 2))
|
|
"*Alist of filename REGEXP vs NUM.
|
|
Each element looks like (REGEXP . NUM).
|
|
NUM specifies which parenthesized expression in the regexp.
|
|
|
|
Examples of image filename regexps:
|
|
file://foo.png
|
|
`file://foo.png'
|
|
\\[\\[foo.gif]]
|
|
<foo.png>
|
|
foo.JPG
|
|
")
|
|
|
|
(defvar iimage-mode-image-search-path nil
|
|
"*List of directories to search for image files for iimage-mode.")
|
|
|
|
;;;###autoload
|
|
(defun turn-on-iimage-mode ()
|
|
"Unconditionally turn on iimage mode."
|
|
(interactive)
|
|
(iimage-mode 1))
|
|
|
|
(defun turn-off-iimage-mode ()
|
|
"Unconditionally turn off iimage mode."
|
|
(interactive)
|
|
(iimage-mode 0))
|
|
|
|
;; Emacs21.3 or earlier does not heve locate-file.
|
|
(if (fboundp 'locate-file)
|
|
(defalias 'iimage-locate-file 'locate-file)
|
|
(defun iimage-locate-file (filename path)
|
|
(locate-library filename t path)))
|
|
|
|
(defun iimage-mode-buffer (arg)
|
|
"Display/undisplay images.
|
|
With numeric ARG, display the images if and only if ARG is positive."
|
|
(interactive)
|
|
(let ((ing (if (numberp arg)
|
|
(> arg 0)
|
|
iimage-mode))
|
|
(modp (buffer-modified-p (current-buffer)))
|
|
file buffer-read-only)
|
|
(save-excursion
|
|
(goto-char (point-min))
|
|
(dolist (pair iimage-mode-image-regex-alist)
|
|
(while (re-search-forward (car pair) nil t)
|
|
(if (and (setq file (match-string (cdr pair)))
|
|
(setq file (iimage-locate-file file
|
|
(cons default-directory
|
|
iimage-mode-image-search-path))))
|
|
(if ing
|
|
(add-text-properties (match-beginning 0) (match-end 0)
|
|
(list 'display (create-image file)))
|
|
(remove-text-properties (match-beginning 0) (match-end 0)
|
|
'(display)))))))
|
|
(set-buffer-modified-p modp)))
|
|
|
|
;;;###autoload
|
|
(define-minor-mode iimage-mode
|
|
"Toggle inline image minor mode."
|
|
:group 'iimage :lighter " iImg" :keymap iimage-mode-map
|
|
(run-hooks 'iimage-mode-hook)
|
|
(iimage-mode-buffer iimage-mode))
|
|
|
|
(provide 'iimage)
|
|
|
|
;;; arch-tag: f6f8e29a-08f6-4a12-9496-51e67441ce65
|
|
;;; iimage.el ends here
|