* gs.el: File removed.

1 files changed, 0 insertions, 225 deletions

diff --git a/lisp/gs.el b/lisp/gs.el
deleted file mode 100644
index 69405d75e78..00000000000
--- a/lisp/gs.el
+++ /dev/null
@@ -1,225 +0,0 @@
-;;; gs.el --- interface to Ghostscript
-
-;; Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
-;;   2008, 2009 Free Software Foundation, Inc.
-
-;; Maintainer: FSF
-;; Keywords: internal
-
-;; 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 3 of the License, 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.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Commentary:
-
-;; This code is experimental.  Don't use it.
-
-;;; Code:
-
-(defvar gs-program "gs"
-  "The name of the Ghostscript interpreter.")
-
-
-(defvar gs-device "x11"
-  "The Ghostscript device to use to produce images.")
-
-
-(defvar gs-options
-  '("-q"
-    ;"-dNOPAUSE"
-    "-dSAFER"
-    "-dBATCH"
-    "-sDEVICE=<device>"
-    "<file>")
-  "List of command line arguments to pass to Ghostscript.
-Arguments may contain place-holders `<file>' for the name of the
-input file, and `<device>' for the device to use.")
-(put 'gs-options 'risky-local-variable t)
-
-(defun gs-options (device file)
-  "Return a list of command line options with place-holders replaced.
-DEVICE is the value to substitute for the place-holder `<device>',
-FILE is the value to substitute for the place-holder `<file>'."
-  (mapcar #'(lambda (option)
-	      (setq option (replace-regexp-in-string "<device>" device option)
-		    option (replace-regexp-in-string "<file>" file option)))
-	  gs-options))
-
-;; The GHOSTVIEW property (taken from gv 3.5.8).
-;;
-;; Type:
-;;
-;; STRING
-;;
-;; Parameters:
-;;
-;; BPIXMAP ORIENT LLX LLY URX URY XDPI YDPI [LEFT BOTTOM TOP RIGHT]
-;;
-;; Scanf format: "%d %d %d %d %d %d %f %f %d %d %d %d"
-;;
-;; Explanation of parameters:
-;;
-;; BPIXMAP: pixmap id of the backing pixmap for the window.  If no
-;; pixmap is to be used, this parameter should be zero.  This
-;; parameter must be zero when drawing on a pixmap.
-;;
-;; ORIENT: orientation of the page.  The number represents clockwise
-;; rotation of the paper in degrees.  Permitted values are 0, 90, 180,
-;; 270.
-;;
-;; LLX, LLY, URX, URY: Bounding box of the drawable.  The bounding box
-;; is specified in PostScript points in default user coordinates.
-;;
-;; XDPI, YDPI: Resolution of window.  (This can be derived from the
-;; other parameters, but not without roundoff error.  These values are
-;; included to avoid this error.)
-;;
-;; LEFT, BOTTOM, TOP, RIGHT: (optional) Margins around the window.
-;; The margins extend the imageable area beyond the boundaries of the
-;; window.  This is primarily used for popup zoom windows.  I have
-;; encountered several instances of PostScript programs that position
-;; themselves with respect to the imageable area.  The margins are
-;; specified in PostScript points.  If omitted, the margins are
-;; assumed to be 0.
-
-(declare-function x-display-mm-width "xfns.c" (&optional terminal))
-(declare-function x-display-pixel-width "xfns.c" (&optional terminal))
-
-(defun gs-width-in-pt (frame pixel-width)
-  "Return, on FRAME, pixel width PIXEL-WIDTH tranlated to pt."
-  (let ((mm (* (float pixel-width)
-	       (/ (float (x-display-mm-width frame))
-		  (float (x-display-pixel-width frame))))))
-    (/ (* 25.4 mm) 72.0)))
-
-(declare-function x-display-mm-height "xfns.c" (&optional terminal))
-(declare-function x-display-pixel-height "xfns.c" (&optional terminal))
-
-(defun gs-height-in-pt (frame pixel-height)
-  "Return, on FRAME, pixel height PIXEL-HEIGHT tranlated to pt."
-  (let ((mm (* (float pixel-height)
-	       (/ (float (x-display-mm-height frame))
-		  (float (x-display-pixel-height frame))))))
-    (/ (* 25.4 mm) 72.0)))
-
-(declare-function x-change-window-property "xfns.c"
-		  (prop value &optional frame type format outer-p))
-
-(defun gs-set-ghostview-window-prop (frame spec img-width img-height)
-  "Set the `GHOSTVIEW' window property of FRAME.
-SPEC is a GS image specification.  IMG-WIDTH is the width of the
-requested image, and IMG-HEIGHT is the height of the requested
-image in pixels."
-  (let* ((box (plist-get (cdr spec) :bounding-box))
-	 (llx (elt box 0))
-	 (lly (elt box 1))
-	 (urx (elt box 2))
-	 (ury (elt box 3))
-	 (rotation (or (plist-get (cdr spec) :rotate) 0))
-	 ;; The pixel width IMG-WIDTH of the pixmap gives the
-	 ;; dots, URX - LLX give the inch.
-	 (in-width (/ (- urx llx) 72.0))
-	 (in-height (/ (- ury lly) 72.0))
-	 (xdpi (/ img-width in-width))
-	 (ydpi (/ img-height in-height)))
-    (x-change-window-property "GHOSTVIEW"
-			      (format "0 %d %d %d %d %d %g %g"
-				      rotation llx lly urx ury xdpi ydpi)
-			      frame)))
-
-(declare-function x-display-grayscale-p "xfns.c" (&optional terminal))
-
-(defun gs-set-ghostview-colors-window-prop (frame pixel-colors)
-  "Set the `GHOSTVIEW_COLORS' environment variable depending on FRAME."
-  (let ((mode (cond ((x-display-color-p frame) "Color")
-		    ((x-display-grayscale-p frame) "Grayscale")
-		    (t "Monochrome"))))
-    (x-change-window-property "GHOSTVIEW_COLORS"
-			      (format "%s %s" mode pixel-colors)
-			      frame)))
-
-(declare-function x-window-property "xfns.c"
-		  (prop &optional frame type source delete-p vector-ret-p))
-
-;;;###autoload
-(defun gs-load-image (frame spec img-width img-height window-and-pixmap-id
-			    pixel-colors)
-  "Load a PS image for display on FRAME.
-SPEC is an image specification, IMG-HEIGHT and IMG-WIDTH are width
-and height of the image in pixels.  WINDOW-AND-PIXMAP-ID is a string of
-the form \"WINDOW-ID PIXMAP-ID\".  Value is non-nil if successful."
-  (unwind-protect
-      (let ((file (plist-get (cdr spec) :file))
-	    gs
- 	    (timeout 40))
- 	;; Wait while property gets freed from a previous ghostscript process
- 	;; sit-for returns nil as soon as input starts being
-	;; available, so if we want to give GhostScript a reasonable
- 	;; chance of starting up, we better use sleep-for.  We let
- 	;; sleep-for wait only half the time because if input is
- 	;; available, it is more likely that we don't care that much
- 	;; about garbled redisplay and are in a hurry.
- 	(while (and
- 		;; Wait while the property is not yet available
- 		(not (zerop (length (x-window-property "GHOSTVIEW"
- 						       frame))))
- 		;; The following was an alternative condition: wait
- 		;; while there is still a process running.  The idea
- 		;; was to avoid contention between processes.  Turned
- 		;; out even more sluggish.
- 		;; (get-buffer-process "*GS*")
- 		(not (zerop timeout)))
- 	  (unless (sit-for 0 100 t)
- 	    (sleep-for 0 50))
- 	  (setq timeout (1- timeout)))
-
- 	;; No use waiting longer.  We might want to try killing off
- 	;; stuck processes, but there is no point in doing so: either
- 	;; they are stuck for good, in which case the user would
- 	;; probably be responsible for that, and killing them off will
- 	;; make debugging harder, or they are not.  In that case, they
- 	;; will cause incomplete displays.  But the same will happen
- 	;; if they are killed, anyway. The whole is rather
- 	;; disconcerting, and fast scrolling through a dozen images
- 	;; will make Emacs freeze for a while.  The alternatives are a)
- 	;; proper implementation not waiting at all but creating
- 	;; appropriate queues, or b) permanently bad display due to
- 	;; bad cached images.  So remember that this
- 	;; is just a hack and if people don't like the behavior, they
- 	;; will most likely like the easy alternatives even less.
- 	;; And at least the image cache will make the delay apparent
- 	;; just once.
-	(gs-set-ghostview-window-prop frame spec img-width img-height)
-	(gs-set-ghostview-colors-window-prop frame pixel-colors)
-	(setenv "GHOSTVIEW" window-and-pixmap-id)
-	(setq gs (apply 'start-process "gs" "*GS*" gs-program
-			(gs-options gs-device file)))
-	(set-process-query-on-exit-flag gs nil)
-	gs)
-    nil))
-
-
-;(defun gs-put-tiger ()
-;  (let* ((ps-file "/usr/local/share/ghostscript/5.10/examples/tiger.ps")
-;	  (spec `(image :type postscript
-;			:pt-width 200 :pt-height 200
-;			:bounding-box (22 171 567 738)
-;			:file ,ps-file)))
-;    (put-text-property 1 2 'display spec)))
-;
-
-(provide 'gs)
-
-;; arch-tag: 06ab51b8-4932-4cfe-9f60-b924a8edb3f0
-;;; gs.el ends here