+ `(display ,(if slice
+ (list (cons 'slice slice) image)
+ image) rear-nonsticky (display)))))
+
+
+(defun insert-sliced-image (image &optional string area rows cols)
+ "Insert IMAGE into current buffer at point.
+IMAGE is displayed by inserting STRING into the current buffer
+with a `display' property whose value is the image. STRING is
+defaulted if you omit it.
+AREA is where to display the image. AREA nil or omitted means
+display it in the text area, a value of `left-margin' means
+display it in the left marginal area, a value of `right-margin'
+means display it in the right marginal area.
+The image is automatically split into ROW x COLS slices."
+ (unless string (setq string " "))
+ (unless (eq (car-safe image) 'image)
+ (error "Not an image: %s" image))
+ (unless (or (null area) (memq area '(left-margin right-margin)))
+ (error "Invalid area %s" area))
+ (if area
+ (setq image (list (list 'margin area) image))
+ ;; Cons up a new spec equal but not eq to `image' so that
+ ;; inserting it twice in a row (adjacently) displays two copies of
+ ;; the image. Don't try to avoid this by looking at the display
+ ;; properties on either side so that we DTRT more often with
+ ;; cut-and-paste. (Yanking killed image text next to another copy
+ ;; of it loses anyway.)
+ (setq image (cons 'image (cdr image))))
+ (let ((x 0.0) (dx (/ 1.0001 (or cols 1)))
+ (y 0.0) (dy (/ 1.0001 (or rows 1))))
+ (while (< y 1.0)
+ (while (< x 1.0)
+ (let ((start (point)))
+ (insert string)
+ (add-text-properties start (point)
+ `(display ,(list (list 'slice x y dx dy) image)
+ rear-nonsticky (display)))
+ (setq x (+ x dx))))
+ (setq x 0.0
+ y (+ y dy))
+ (insert (propertize "\n" 'line-height 0)))))
+