* Re: visibility of overlays at end of buffer
@ 2006-02-24 4:54 Chong Yidong
0 siblings, 0 replies; only message in thread
From: Chong Yidong @ 2006-02-24 4:54 UTC (permalink / raw)
> With emacs -Q evaluate ...
> (get-buffer-create "*over*")
> (defvar bar-over)
> (with-current-buffer "*over*"
> (delete-region (point-min) (point-max))
> (insert "foo\n")
> (let ((at (point)))
> (insert "bar\nbar\nbar\n")
> (setq bar-over (make-overlay at (point-max))))
> (overlay-put bar-over 'invisible t))
> (defun bar-over ()
> (interactive)
> (overlay-put bar-over 'invisible (not (overlay-get bar-over 'invisible))))
> (global-set-key [(control meta z)] 'bar-over)
>
> ... and enter buffer *over*. On my system
>
> - with the cursor before "foo" C-M-z never displays / hides the "bar"s,
This can be fixed by making overlay-put tell redisplay that the window
is changed.
*** emacs/src/buffer.c.~1.498.~ 2006-02-20 23:20:14.000000000 -0500
--- emacs/src/buffer.c 2006-02-23 23:51:23.000000000 -0500
***************
*** 4090,4095 ****
--- 4090,4097 ----
== OVERLAY_POSITION (OVERLAY_END (overlay))))
Fdelete_overlay (overlay);
}
+
+ windows_or_buffers_changed++;
return value;
}
\f
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