Mathias Dahl <mathias.dahl at gmail.com>:

(image-dired-display-image): Derive image-type from filename rather
than assuming jpeg, in case no resizing was needed.

diff --git a/lisp/image-dired.el b/lisp/image-dired.el
index ed330410d883e9c904c990a13ffc92ff9d99603d..49c9832cbcf330a1f5d1abd71de4170b8fc54eec 100644 (file)
--- a/lisp/image-dired.el
+++ b/lisp/image-dired.el
@@ -1774,7 +1774,8 @@ should feel snappy enough.
 If optional argument ORIGINAL-SIZE is non-nil, display image in its
 original size."
   (let ((new-file (expand-file-name image-dired-temp-image-file))
-        width height command ret)
+        width height command ret
+        (image-type 'jpeg))
     (setq file (expand-file-name file))
     (if (not original-size)
         (progn
@@ -1793,12 +1794,13 @@ original size."
                                  shell-command-switch command))
           (if (not (= 0 ret))
               (error "Could not resize image")))
+      (setq image-type (image-type-from-file-name file))
       (copy-file file new-file t))
     (with-current-buffer (image-dired-create-display-image-buffer)
       (let ((inhibit-read-only t))
         (erase-buffer)
         (clear-image-cache)
-        (image-dired-insert-image image-dired-temp-image-file 'jpeg 0 0)
+        (image-dired-insert-image image-dired-temp-image-file image-type 0 0)
         (goto-char (point-min))
         (image-dired-update-property 'original-file-name file)))))