;;; image.el --- image API
-;; Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
+;; Copyright (C) 1998, 99, 2000, 01, 04 Free Software Foundation, Inc.
;; Maintainer: FSF
;; Keywords: multimedia
with one argument, a string containing the image data. If PREDICATE returns
a non-nil value, TYPE is the image's type.")
+;;;###autoload
+(defvar image-library-alist nil
+ "Alist of image types vs external libraries needed to display them.
+
+Each element is a list (IMAGE-TYPE LIBRARY...), where the car is a symbol
+representing a supported image type, and the rest are strings giving
+alternate filenames for the corresponding external libraries.
+
+Emacs tries to load the libraries in the order they appear on the
+list; if none is loaded, the running session of Emacs won't
+support the image type. Types 'pbm and 'xbm don't need to be
+listed; they're always supported.")
+;;;###autoload (put 'image-library-alist 'risky-local-variable t)
(defun image-jpeg-p (data)
"Value is non-nil if DATA, a string, consists of JFIF image data.
(defun image-type-available-p (type)
"Value is non-nil if image type TYPE is available.
Image types are symbols like `xbm' or `jpeg'."
- (and (boundp 'image-types) (not (null (memq type image-types)))))
-
+ (and (fboundp 'init-image-library)
+ (init-image-library type image-library-alist)))
;;;###autoload
(defun create-image (file-or-data &optional type data-p &rest props)
(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))
(setq x (+ x dx))))
(setq x 0.0
y (+ y dy))
- (insert (propertize "\n" 'line-spacing t)))))
+ (insert (propertize "\n" 'line-height 0)))))