Function: image-dired-rotate-original

image-dired-rotate-original is a byte-compiled function defined in image-dired.el.gz.

Signature

(image-dired-rotate-original DEGREES)

Documentation

Rotate original image DEGREES degrees.

Source Code

;; Defined in /usr/src/emacs/lisp/image-dired.el.gz
(defun image-dired-rotate-original (degrees)
  "Rotate original image DEGREES degrees."
  (image-dired--check-executable-exists
   'image-dired-cmd-rotate-original-program)
  (if (not (image-dired-image-at-point-p))
      (message "No image at point")
    (let* ((file (image-dired-original-file-name))
           (spec
            (list
             (cons ?d degrees)
             (cons ?o (expand-file-name file))
             (cons ?t image-dired-temp-rotate-image-file))))
      (unless (eq 'jpeg (image-type file))
        (error "Only JPEG images can be rotated!"))
      (if (not (= 0 (apply #'call-process image-dired-cmd-rotate-original-program
                           nil nil nil
                           (mapcar (lambda (arg) (format-spec arg spec))
                                   image-dired-cmd-rotate-original-options))))
          (error "Could not rotate image")
        (image-dired-display-image image-dired-temp-rotate-image-file)
        (if (or (and image-dired-rotate-original-ask-before-overwrite
                     (y-or-n-p
		      "Rotate to temp file OK.  Overwrite original image? "))
                (not image-dired-rotate-original-ask-before-overwrite))
            (progn
              (copy-file image-dired-temp-rotate-image-file file t)
              (image-dired-refresh-thumb))
          (image-dired-display-image file))))))