X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/f67e15be8d94718b2e2ea7da68eb0b2dc94ce016..2b96868715a33d5c1bfbd03e961a222076398722:/lisp/image-mode.el

diff --git a/lisp/image-mode.el b/lisp/image-mode.el
index 2fe1cdc88e..dbedf64156 100644
--- a/lisp/image-mode.el
+++ b/lisp/image-mode.el
@@ -7,10 +7,10 @@
 
 ;; This file is part of GNU Emacs.
 
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; 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, or (at your option)
-;; any later version.
+;; 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
@@ -18,9 +18,7 @@
 ;; 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.
+;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
 
 ;;; Commentary:
 
@@ -58,10 +56,19 @@
   "Special hook run when image data is requested in a new window.
 It is called with one argument, the initial WINPROPS.")
 
-(defun image-mode-winprops (&optional window)
+(defun image-mode-winprops (&optional window cleanup)
   "Return winprops of WINDOW.
 A winprops object has the shape (WINDOW . ALIST)."
-  (unless window (setq window (selected-window)))
+  (cond ((null window)
+	 (setq window (selected-window)))
+	((not (windowp window))
+	 (error "Not a window: %s" window)))
+  (when cleanup
+    (setq image-mode-winprops-alist
+  	  (delq nil (mapcar (lambda (winprop)
+  			      (if (window-live-p (car-safe winprop))
+  				  winprop))
+  			    image-mode-winprops-alist))))
   (let ((winprops (assq window image-mode-winprops-alist)))
     ;; For new windows, set defaults from the latest.
     (unless winprops
@@ -96,8 +103,9 @@ A winprops object has the shape (WINDOW . ALIST)."
 (defun image-mode-reapply-winprops ()
   ;; When set-window-buffer, set hscroll and vscroll to what they were
   ;; last time the image was displayed in this window.
-  (when (listp image-mode-winprops-alist)
-    (let* ((winprops (image-mode-winprops))
+  (when (and (image-get-display-property)
+	     (listp image-mode-winprops-alist))
+    (let* ((winprops (image-mode-winprops nil t))
            (hscroll (image-mode-window-get 'hscroll winprops))
            (vscroll (image-mode-window-get 'vscroll winprops)))
       (if hscroll (set-window-hscroll (selected-window) hscroll))
@@ -118,6 +126,8 @@ A winprops object has the shape (WINDOW . ALIST)."
                      (if (eq (window-buffer) (current-buffer))
                          (selected-window))))
 
+(declare-function image-size "image.c" (spec &optional pixels frame))
+
 (defun image-forward-hscroll (&optional n)
   "Scroll image in current window to the left by N character widths.
 Stop if the right edge of the image is reached."
@@ -278,7 +288,13 @@ This variable is used to display the current image type in the mode line.")
 
 (defvar image-mode-map
   (let ((map (make-sparse-keymap)))
+    (suppress-keymap map)
+    (define-key map "q"         'quit-window)
+    ;;
     (define-key map "\C-c\C-c" 'image-toggle-display)
+    (define-key map (kbd "SPC")       'image-scroll-up)
+    (define-key map (kbd "DEL")       'image-scroll-down)
+    ;;
     (define-key map [remap forward-char] 'image-forward-hscroll)
     (define-key map [remap backward-char] 'image-backward-hscroll)
     (define-key map [remap previous-line] 'image-previous-line)
@@ -383,6 +399,7 @@ information on these modes."
 
 (defvar archive-superior-buffer)
 (defvar tar-superior-buffer)
+(declare-function image-refresh "image.c" (spec &optional frame))
 
 (defun image-toggle-display ()
   "Start or stop displaying an image file as the actual image.