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bug#1220: marked as done (overlay before- and after-string and mouse-fac


From: Emacs bug Tracking System
Subject: bug#1220: marked as done (overlay before- and after-string and mouse-face)
Date: Mon, 22 Jun 2009 02:00:05 +0000

Your message dated Sun, 21 Jun 2009 21:55:34 -0400
with message-id <address@hidden>
and subject line Re: overlay before- and after-string and mouse-face
has caused the Emacs bug report #1220,
regarding overlay before- and after-string and mouse-face
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact address@hidden
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-- 
1220: http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=1220
Emacs Bug Tracking System
Contact address@hidden with problems
--- Begin Message --- Subject: overlay before- and after-string and mouse-face Date: Tue, 21 Oct 2008 20:39:13 -0400 User-agent: Gnus (www.gnus.org), GNU Emacs (www.gnu.org/software/emacs/)
Package: emacs
Version: 23.0.60

This bug is extracted from #1176, which contained several issues.

The mouse-face property of an overlay with a display string does not
affect any before-string, but it does affect the after-string.

This can be worked around to some extent by copying the mouse-face
property to the before-string, but one cannot get the whole overlay
highlighted at one time.

Example:

(let ((buff (generate-new-buffer "overlay test"))
      o)
  (with-current-buffer buff
    (insert "text")
    (setq o (make-overlay (point-min) (point-max)))
    (overlay-put o 'mouse-face '(:background "green"))
    (overlay-put o 'display "display")
    (overlay-put o 'before-string "before string")
    (overlay-put o 'after-string "after string")
    (pop-to-buffer buff)))

"displayafter string" has mouse-face, but "before string" does not.



--- End Message ---
--- Begin Message --- Subject: Re: overlay before- and after-string and mouse-face Date: Sun, 21 Jun 2009 21:55:34 -0400
> The mouse-face property of an overlay with a display string does not
> affect any before-string, but it does affect the after-string.
>
> This can be worked around to some extent by copying the mouse-face
> property to the before-string, but one cannot get the whole overlay
> highlighted at one time.

I've checked a fix for this into the trunk.

--- End Message ---

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