--- Begin Message ---
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Subject: |
23.0.91; posn-at-point returns an incorrect value |
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Date: |
Mon, 14 Sep 2009 18:18:47 +0900 |
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User-agent: |
Thunderbird 2.0.0.23 (X11/20090817) |
I was going to acquire the width and height of a character the cursor
is over, by using the following code:
(posn-object-width-height (posn-at-point))
However, I found that this code gives back a wrong result when a
header line is displayed such as tabbar-mode. This code returns the
size of another character, which is in the position different from the
exact one in the number of objects included in the header line.
For example, when the cursor is in the top left corner of the window,
the size of the object in the left end of the header line is obtained.
Steps to reproduce:
1. Turn on tabbar-mode.
2. Evaluate the following expressions in *scratch*:
(defun char-w-h ()
(message "%s" (posn-object-width-height (posn-at-point))))
(add-hook 'post-command-hook 'char-w-h)
3. Move a cursor from place to place in the window.
In GNU Emacs 23.0.91.1 (i486-pc-linux-gnu, GTK+ Version 2.16.0)
of 2009-04-05 on palmer, modified by Debian
(emacs-snapshot package, version 1:20090320-1ubuntu1)
Windowing system distributor `The X.Org Foundation', version 11.0.10600000
configured using `configure '--build' 'i486-linux-gnu' '--host'
'i486-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib'
'--libexecdir=/usr/lib' '--localstatedir=/var'
'--infodir=/usr/share/info' '--mandir=/usr/share/man' '--with-pop=yes'
'--enable-locallisppath=/etc/emacs-snapshot:/etc/emacs:/usr/local/share/emacs/23.0.91/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.0.91/site-lisp:/usr/share/emacs/site-lisp'
'--with-x=yes' '--with-x-toolkit=gtk' 'build_alias=i486-linux-gnu'
'host_alias=i486-linux-gnu' 'CFLAGS=-DDEBIAN
-DSITELOAD_PURESIZE_EXTRA=5000 -g -O2' 'LDFLAGS=-g -Wl,--as-needed'
'CPPFLAGS=''
Important settings:
value of $LC_ALL: nil
value of $LC_COLLATE: nil
value of $LC_CTYPE: nil
value of $LC_MESSAGES: nil
value of $LC_MONETARY: nil
value of $LC_NUMERIC: nil
value of $LC_TIME: nil
value of $LANG: ja_JP.UTF-8
value of $XMODIFIERS: @im=none
locale-coding-system: utf-8-unix
default-enable-multibyte-characters: t
Major mode: Lisp Interaction
Minor modes in effect:
tabbar-mwheel-mode: t
tabbar-mode: t
tooltip-mode: t
tool-bar-mode: t
mouse-wheel-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
global-auto-composition-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
line-number-mode: t
transient-mark-mode: t
Recent input:
u i r e SPC ' t C-p C-p C-p C-p C-p C-p C-p C-n C-n
C-n C-n C-n C-f C-f C-f C-f C-f C-f C-f C-f C-b C-b
C-b C-b C-b C-b C-b C-b C-b C-b C-b C-b C-b C-b C-n
C-n C-e a b b a r ) C-j ( t a b b a r - m o d e ) C-j
C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p
C-n C-p C-f C-f C-f C-f C-f C-f C-f C-f C-f C-f C-f
C-f C-f C-f C-f C-f C-f C-f C-f C-f C-f C-f C-f C-f
C-f C-f C-f C-f C-f C-n C-p C-p C-b C-b C-b C-b C-b
C-b C-b C-b C-b C-b C-b C-b C-b C-b C-b C-b C-b C-b
C-b C-b C-b C-b C-b C-b C-b C-b C-b C-b C-b C-b C-b
C-b C-b C-b C-b C-b C-b C-b C-b C-b C-b C-n C-n C-n
C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-n C-n
C-n C-p C-p C-p C-p C-p C-n C-n C-b C-p C-p C-n C-a
C-f C-f C-f C-f C-f C-f C-p C-n C-n C-n C-n C-n C-n
C-n C-n C-n C-n C-n C-n C-n C-p C-p C-p C-p C-p C-p
C-p C-p C-p C-p C-p C-p C-p C-p C-a C-a C-f C-f C-f
C-f C-f C-f C-f C-f C-f C-f C-f C-f C-f C-f C-n C-n
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n ( r e m o v
e - h o o k SPC ' p o s t - c o m m a n d - h o o k
SPC ' c h a r - w - h ) C-j M-x r e p o r t - e m a
<tab> RET
Recent messages:
(7 . 14) [3 times]
(0 . 14)
(7 . 14)
(0 . 14)
(7 . 14)
(0 . 14)
(7 . 14)
(0 . 14)
(7 . 14) [3 times]
(0 . 14) [41 times]
--
IRIE Shinsuke, Ph.D.
address@hidden
--- End Message ---
--- Begin Message ---
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Subject: |
Re: bug#4426: [PATCH] posn-at-point returns an incorrect value |
|
Date: |
Sat, 08 Oct 2011 13:01:06 +0200 |
> From: Lars Magne Ingebrigtsen <address@hidden>
> Date: Sun, 18 Sep 2011 10:21:43 +0200
> Cc: address@hidden
>
> As far as I can tell, this patch hasn't been applied yet. I'm not
> familiar enough with this code to say whether this looks correct or
> not. Could someone take a look?
I took a look. The problem indeed was still there. I installed a fix
(slightly different from what the OP suggested).
Thanks.
--- End Message ---