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bug#8992: 23.3.50; Wrong mouse highlight background ascent and height

From: YAMAMOTO Mitsuharu
Subject: bug#8992: 23.3.50; Wrong mouse highlight background ascent and height
Date: Mon, 04 Jul 2011 08:42:37 +0900
User-agent: Wanderlust/2.14.0 (Africa) SEMI/1.14.6 (Maruoka) FLIM/1.14.8 (Shij┼Ź) APEL/10.6 Emacs/22.3 (sparc-sun-solaris2.8) MULE/5.0 (SAKAKI)

Steps to reproduce:

  1. $ emacs -q -fn courier
  2. Move the mouse pointer over "Emacs Tutorial" in the splash screen.


  Mouse highlight does not fill the whole background (see the first

The patch below seems to work (see the second attachment).  I think
colors should be extracted from s->face, but font metrics should be
obtained from s->font.

                                     YAMAMOTO Mitsuharu

=== modified file 'src/xftfont.c'
*** src/xftfont.c       2011-02-02 02:15:29 +0000
--- src/xftfont.c       2011-07-03 07:03:15 +0000
*** 689,695 ****
    if (with_background)
      XftDrawRect (xft_draw, &bg,
!                x, y - face->font->ascent, s->width, face->font->height);
    code = alloca (sizeof (FT_UInt) * len);
    for (i = 0; i < len; i++)
      code[i] = ((XCHAR2B_BYTE1 (s->char2b + from + i) << 8)
--- 689,695 ----
    if (with_background)
      XftDrawRect (xft_draw, &bg,
!                x, y - s->font->ascent, s->width, s->font->height);
    code = alloca (sizeof (FT_UInt) * len);
    for (i = 0; i < len; i++)
      code[i] = ((XCHAR2B_BYTE1 (s->char2b + from + i) << 8)

If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
For information about debugging Emacs, please read the file

In GNU Emacs (i686-pc-linux-gnu, GTK+ Version 2.24.4)
 of 2011-07-04 on mituharu-MacBookAir
Windowing system distributor `The X.Org Foundation', version 11.0.11001000
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=ibus
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Fundamental

Minor modes in effect:
  tooltip-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  blink-cursor-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <menu-bar> <help-menu> 

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.

Load-path shadows:
None found.

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gnus-util netrc time-date mm-util mail-prsvr gmm-utils wid-edit
mailheader canlock sha1 hex-util hashcash mail-utils emacsbug japan-util
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font-setting tool-bar dnd fontset image fringe lisp-mode register page
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