update.

[chise/xemacs-chise.git.1] / lisp / gutter.el

diff --git a/lisp/gutter.el b/lisp/gutter.el
index 44df9a0..a6dad1e 100644 (file)
--- a/lisp/gutter.el
+++ b/lisp/gutter.el
@@ -60,15 +60,15 @@ element in the gutter changes.  The value of this variable may be
 buffer-local. The gutter element symbol is passed as an argument to
 the hook, as is the visibility flag.")
 
-(defun set-gutter-element (gutter-specifier prop val &optional locale tag-set)
-  "Set GUTTER-SPECIFIER gutter element PROP to VAL in optional LOCALE.
+(defun set-gutter-element (gutter-specifier prop value &optional locale tag-set)
+  "Set GUTTER-SPECIFIER gutter element PROP to VALUE in optional LOCALE.
 This is a convenience function for setting gutter elements.
-VAL in general must be a string. If VAL is a glyph then a string will be
-created to put the glyph into."
-  (let ((spec val))
-    (when (glyphp val)
+VALUE in general must be a string. If VALUE is a glyph then a string
+will be created to put the glyph into."
+  (let ((spec value))
+    (when (glyphp value)
       (setq spec (copy-sequence "\n"))
-      (set-extent-begin-glyph (make-extent 0 1 spec) val))
+      (set-extent-begin-glyph (make-extent 0 1 spec) value))
     (map-extents #'(lambda (extent arg)
                     (set-extent-property extent 'duplicable t)) spec)
     (modify-specifier-instances gutter-specifier #'plist-put (list prop spec)
@@ -108,6 +108,21 @@ non-nil if it is visible in optional DOMAIN."
     (or (and (listp spec) (memq 'buffers-tab spec))
        spec)))
 
+(defun set-gutter-dirty-p (gutter-or-location)
+  "Make GUTTER-OR-LOCATION dirty to force redisplay updates."
+  ;; set-glyph-image will not make the gutter dirty
+  (when (or (gutter-specifier-p gutter-or-location)
+           (eq gutter-or-location 'top)
+           (eq gutter-or-location 'bottom)
+           (eq gutter-or-location 'left)
+           (eq gutter-or-location 'right))
+    (or (gutter-specifier-p gutter-or-location) 
+       (setq gutter-or-location
+             (eval (intern (concat 
+                            (symbol-name gutter-or-location)
+                            "-gutter")))))
+    (set-specifier-dirty-flag gutter-or-location)))
+
 (defun make-gutter-specifier (spec-list)
   "Return a new `gutter' specifier object with the given specification list.
 SPEC-LIST can be a list of specifications (each of which is a cons of a