+2013-01-04 Stefan Monnier <monnier@iro.umontreal.ca>
+
+ * doc-view.el (doc-view-scale-internally): New var.
+ (doc-view-enlarge, doc-view-insert-image): Obey it.
+
2013-01-03 Daiki Ueno <ueno@gnu.org>
* epg.el (epg--start): Ignore errors when /dev/fd/0 does not
:type 'number
:group 'doc-view)
+(defcustom doc-view-scale-internally t
+ "Whether we should try to rescale images ourselves.
+If nil, the document is re-rendered every time the scaling factor is modified.
+This only has an effect if the image libraries linked with Emacs support
+scaling."
+ :type 'boolean)
+
(defcustom doc-view-image-width 850
"Default image width.
-Has only an effect if imagemagick support is compiled into emacs."
+Has only an effect if `doc-view-scale-internally' is non-nil and support for
+scaling is compiled into emacs."
:version "24.1"
:type 'number
:group 'doc-view)
(defun doc-view-enlarge (factor)
"Enlarge the document by FACTOR."
(interactive (list doc-view-shrink-factor))
- (if (eq (plist-get (cdr (doc-view-current-image)) :type)
- 'imagemagick)
+ (if (and doc-view-scale-internally
+ (eq (plist-get (cdr (doc-view-current-image)) :type)
+ 'imagemagick))
;; ImageMagick supports on-the-fly-rescaling.
(let ((new (ceiling (* factor doc-view-image-width))))
(unless (equal new doc-view-image-width)
(setq doc-view-pending-cache-flush nil))
(let ((ol (doc-view-current-overlay))
(image (if (and file (file-readable-p file))
- (if (not (fboundp 'imagemagick-types))
+ (if (not (and doc-view-scale-internally
+ (fboundp 'imagemagick-types)))
(apply 'create-image file 'png nil args)
(unless (member :width args)
- (setq args (append args (list :width doc-view-image-width))))
+ (setq args `(,@args :width ,doc-view-image-width)))
(apply 'create-image file 'imagemagick nil args))))
(slice (doc-view-current-slice)))
(setf (doc-view-current-image) image)