Add a provide statement.

[gnu-emacs] / lisp / image.el

diff --git a/lisp/image.el b/lisp/image.el
index ec974e7a145cdc22f0f429fd93bf46e7bb825e75..13fdf2f6e4cf2d57228d3c290fc02a0677f33ba1 100644 (file)
--- a/lisp/image.el
+++ b/lisp/image.el
@@ -1,6 +1,6 @@
 ;;; 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
@@ -48,6 +48,19 @@ IMAGE-TYPE must be a pair (PREDICATE . TYPE).  PREDICATE is called
 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.
@@ -111,8 +124,8 @@ be determined."
 (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)
@@ -215,6 +228,15 @@ height of the image; integer values are taken as pixel values."
 
 
 (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))
@@ -241,7 +263,7 @@ height of the image; integer values are taken as pixel values."
          (setq x (+ x dx))))
       (setq x 0.0
            y (+ y dy))
-      (insert (propertize "\n" 'line-spacing t)))))
+      (insert (propertize "\n" 'line-height 0)))))