Function: image-decrease-size

image-decrease-size is an interactive and byte-compiled function defined in image.el.gz.

Signature

(image-decrease-size &optional N POSITION)

Documentation

Decrease the image size by a factor of N.

If N is 3, then the image size will be decreased by 30%. The default is 20%.

Key Bindings

Source Code

;; Defined in /usr/src/emacs/lisp/image.el.gz
(defun image-decrease-size (&optional n position)
  "Decrease the image size by a factor of N.
If N is 3, then the image size will be decreased by 30%.  The
default is 20%."
  (interactive "P")
  ;; Wait for a bit of idle-time before actually performing the change,
  ;; so as to batch together sequences of closely consecutive size changes.
  ;; `image--change-size' just changes one value in a plist.  The actual
  ;; image resizing happens later during redisplay.  So if those
  ;; consecutive calls happen without any redisplay between them,
  ;; the costly operation of image resizing should happen only once.
  (run-with-idle-timer 0.3 nil
                       #'image--change-size
                       (if n
                           (- 1 (/ (prefix-numeric-value n) 10.0))
                         0.8)
                       position))