-;;; gnus-fun.el --- various frivoluos extension functions to Gnus
-;; Copyright (C) 2002 Free Software Foundation, Inc.
+;;; gnus-fun.el --- various frivolous extension functions to Gnus
+;; Copyright (C) 2002, 2003 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Keywords: news
;;; Code:
+(eval-when-compile
+ (require 'cl))
+
+(require 'mm-util)
+(require 'gnus-ems)
+(require 'gnus-util)
+
(defcustom gnus-x-face-directory (expand-file-name "x-faces" gnus-directory)
"*Directory where X-Face PBM files are stored."
+ :version "22.1"
:group 'gnus-fun
:type 'directory)
(defcustom gnus-convert-pbm-to-x-face-command "pbmtoxbm %s | compface"
"Command for converting a PBM to an X-Face."
+ :version "22.1"
:group 'gnus-fun
:type 'string)
"Command for converting an image to an X-Face.
By default it takes a GIF filename and output the X-Face header data
on stdout."
+ :version "22.1"
:group 'gnus-fun
:type 'string)
"Command for converting an image to an Face.
By default it takes a JPEG filename and output the Face header data
on stdout."
+ :version "22.1"
:group 'gnus-fun
:type 'string)
+(defcustom gnus-face-properties-alist (if (featurep 'xemacs)
+ '((xface . (:face gnus-x-face)))
+ '((pbm . (:face gnus-x-face))
+ (png . nil)))
+ "Alist of image types and properties applied to Face and X-Face images.
+Here are examples:
+
+;; Specify the altitude of Face images in the From header.
+\(setq gnus-face-properties-alist
+ '((pbm . (:face gnus-x-face :ascent 80))
+ (png . (:ascent 80))))
+
+;; Show Face images as pressed buttons.
+\(setq gnus-face-properties-alist
+ '((pbm . (:face gnus-x-face :relief -2))
+ (png . (:relief -2))))
+
+See the manual for the valid properties for various image types.
+Currently, `pbm' is used for X-Face images and `png' is used for Face
+images in Emacs. Only the `:face' property is effective on the `xface'
+image type in XEmacs if it is built with the libcompface library."
+ :group 'gnus-fun
+ :type '(repeat (cons :format "%v" (symbol :tag "Image type") plist)))
+
(defun gnus-shell-command-to-string (command)
"Like `shell-command-to-string' except not mingling ERROR."
(with-output-to-string
(while (and (not done)
(> quant 1))
(setq attempt
- (gnus-shell-command-to-string
- (format gnus-convert-image-to-face-command
- (shell-quote-argument (expand-file-name file))
- quant)))
- (if (> (length attempt) 740)
+ (let ((coding-system-for-read 'binary))
+ (gnus-shell-command-to-string
+ (format gnus-convert-image-to-face-command
+ (shell-quote-argument (expand-file-name file))
+ quant))))
+ (if (> (length attempt) 726)
(progn
(setq quant (- quant 2))
- (message "Length %d; trying quant %d"
- (length attempt) quant))
+ (gnus-message 9 "Length %d; trying quant %d"
+ (length attempt) quant))
(setq done t)))
(if done
- (mm-with-unibyte-buffer
+ (mm-with-unibyte-buffer
(insert attempt)
(gnus-face-encode))
nil))))
(base64-decode-region (point-min) (point-max)))
(buffer-string)))
-;;;#autoload
+;;;###autoload
(defun gnus-convert-png-to-face (file)
"Convert FILE to a Face.
FILE should be a PNG file that's 48x48 and smaller than or equal to
-740 bytes."
+726 bytes."
(mm-with-unibyte-buffer
(insert-file-contents file)
- (when (> (buffer-size) 740)
+ (when (> (buffer-size) 726)
(error "The file is %d bytes long, which is too long"
(buffer-size)))
(gnus-face-encode)))
'xface
(gnus-put-image
(if (gnus-image-type-available-p 'xface)
- (gnus-create-image
- (concat "X-Face: " data)
- 'xface t :ascent 'center :face 'gnus-x-face)
- (gnus-create-image
- pbm 'pbm t :ascent 'center :face 'gnus-x-face))))
+ (apply 'gnus-create-image (concat "X-Face: " data) 'xface t
+ (cdr (assq 'xface gnus-face-properties-alist)))
+ (apply 'gnus-create-image pbm 'pbm t
+ (cdr (assq 'pbm gnus-face-properties-alist))))
+ nil 'xface))
(gnus-add-wash-type 'xface))))))
(defun gnus-grab-cam-x-face ()
(sleep-for 1))
(setq file (car file))
(shell-command
- (format "pnmcut -left 110 -top 30 -width 144 -height 144 '%s' | ppmnorm 2>/dev/null | ppmnorm | pnmscale -width 48 -height 48 > /tmp/gnus.face.ppm"
+ (format "pnmcut -left 110 -top 30 -width 144 -height 144 '%s' | pnmscale -width 48 -height 48 | ppmtopgm > /tmp/gnus.face.ppm"
file))
(let ((gnus-convert-image-to-face-command
- "cat '%s' | ppmquant %d | pnmtopng"))
+ (format "cat '%%s' | ppmquant %%d | ppmchange %s | pnmtopng"
+ (gnus-fun-ppm-change-string))))
(setq result (gnus-face-from-file "/tmp/gnus.face.ppm")))
(delete-file file)
;;(delete-file "/tmp/gnus.face.ppm")
result))
+(defun gnus-fun-ppm-change-string ()
+ (let* ((possibilites '("%02x0000" "00%02x00" "0000%02x"
+ "%02x%02x00" "00%02x%02x" "%02x00%02x"))
+ (format (concat "'#%02x%02x%02x' '#"
+ (nth (random 6) possibilites)
+ "'"))
+ (values nil))
+ (dotimes (i 255)
+ (push (format format i i i i i i)
+ values))
+ (mapconcat 'identity values " ")))
+
(provide 'gnus-fun)
+;;; arch-tag: 9d000a69-15cc-4491-9dc0-4627484f50c1
;;; gnus-fun.el ends here
projects / gnus / blobdiff