GNU bug report logs - #17942
24.3.92; pos-visible-in-window-p with PARTIALLY is wrong for the first row only containing a single image

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#17942: closed (24.3.92; pos-visible-in-window-p with
 PARTIALLY is wrong for the first row only containing a single image)
Date: Sat, 05 Jul 2014 07:41:02 +0000

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Your message dated Sat, 05 Jul 2014 10:39:59 +0300
with message-id <83tx6wdzjk.fsf <at> gnu.org>
and subject line Re: bug#17942: 24.3.92; pos-visible-in-window-p with PARTIALLY is wrong for the first row	only containing a single image
has caused the debbugs.gnu.org bug report #17942,
regarding 24.3.92; pos-visible-in-window-p with PARTIALLY is wrong for the first row only containing a single image
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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From: YAMAMOTO Mitsuharu <mituharu <at> math.s.chiba-u.ac.jp>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.3.92; pos-visible-in-window-p with PARTIALLY is wrong for
 the first row only containing a single image
Date: Sat, 05 Jul 2014 08:38:26 +0900

Steps to reproduce:

1. $ emacs -Q &
2. Type the following expression and hit C-j in the *scratch* buffer.

  (save-excursion
    (goto-char (point-min))
    (insert-image (create-image "splash.png"))
    (insert ?\n))

3. Ditto.

   (pos-visible-in-window-p (point-min) nil t)

Result:

The expected one is (0 0), but the actual one is (608 188).  As far as
I tested, this happens at the first row (i.e., (window-start)) only
containing a single image.  If you remove (insert ?\n) in the first
expression, then the result is (0 0) as expected.

				     YAMAMOTO Mitsuharu
				mituharu <at> math.s.chiba-u.ac.jp

In GNU Emacs 24.3.92.1 (x86_64-apple-darwin13.2.0, GTK+ Version 3.12.2)
 of 2014-07-05 on YAMAMOTO-no-iMac.local
Repository revision: 117350 stephen.berman <at> gmx.net-20140704190929-xpf743kwesgh2k4q
Windowing system distributor `The X.Org Foundation', version 11.0.11406000
Configured using:
 `configure --without-imagemagick LDFLAGS=-L/opt/local/lib
 CPPFLAGS=-I/opt/local/include'

[Message part 3 (message/rfc822, inline)]

From: Eli Zaretskii <eliz <at> gnu.org>
To: YAMAMOTO Mitsuharu <mituharu <at> math.s.chiba-u.ac.jp>
Cc: 17942-done <at> debbugs.gnu.org
Subject: Re: bug#17942: 24.3.92;
 pos-visible-in-window-p with PARTIALLY is wrong for the first
 row	only containing a single image
Date: Sat, 05 Jul 2014 10:39:59 +0300

> Date: Sat, 05 Jul 2014 08:38:26 +0900
> From: YAMAMOTO Mitsuharu <mituharu <at> math.s.chiba-u.ac.jp>
> 
> 1. $ emacs -Q &
> 2. Type the following expression and hit C-j in the *scratch* buffer.
> 
>   (save-excursion
>     (goto-char (point-min))
>     (insert-image (create-image "splash.png"))
>     (insert ?\n))
> 
> 3. Ditto.
> 
>    (pos-visible-in-window-p (point-min) nil t)
> 
> Result:
> 
> The expected one is (0 0), but the actual one is (608 188).  As far as
> I tested, this happens at the first row (i.e., (window-start)) only
> containing a single image.  If you remove (insert ?\n) in the first
> expression, then the result is (0 0) as expected.

Fixed in revision 117352 on the emacs-24 branch.

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