bug#6242: line-spacing and echo area

[David Reitter <david.reitter@gmail.com>]

(setq-default line-spacing 1.8)

Will cause the echo area (including minibuffers) to be unusable (the line is displayed too low).
I would expect either line-spacing to be ignored in the echo area, or, the echo area needs to be enlarged to accommodate the new line-spacing.

As soon as there is more than one line displayed in a minibuffer, the appearance is correct.




In GNU Emacs 23.2.50.1 (x86_64-apple-darwin10.3.1, NS apple-appkit-1038.29)
 of 2010-05-10 on elin.psy.cmu.edu
Windowing system distributor `Apple', version 10.3.1038
configured using `configure  '--with-ns''

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: nil
  value of $XMODIFIERS: nil
  locale-coding-system: nil
  default enable-multibyte-characters: t

Major mode: Lisp Interaction

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

Recent input:
C-x k <return> ( s e t q - d e f a u l t SPC ' l i 
n e - s p a c i n g SPC 0 . 8 ) C-x C-e q <down-mouse-1> 
<mouse-1> <backspace> C-e C-x C-e C-x C-f C-a C-s C-d 
C-a C-s C-g <down-mouse-1> <mouse-movement> <drag-mouse-1> 
<backspace> <wheel-down> 1 <wheel-down> <double-wheel-down> 
<triple-wheel-down> <backspace> <backspace> 1 . C-e 
<down-mouse-1> <mouse-movement> <mouse-movement> <drag-mouse-1> 
s-c <menu-bar> <help-menu> <send-emacs-bug-report>

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
Unable to load color "darkblue"
Entering debugger...
Back to top level.
0.8
Quit [2 times]
byte-code: End of buffer [3 times]
byte-code: End of buffer

Load-path shadows:
None found.

Features:
(shadow sort mail-extr message ecomplete rfc822 mml mml-sec
password-cache mm-decode mm-bodies mm-encode mailcap mail-parse rfc2231
rfc2047 rfc2045 qp ietf-drums mailabbrev nnheader gnus-util netrc
time-date mm-util mail-prsvr gmm-utils wid-edit mailheader canlock sha1
hex-util hashcash mail-utils emacsbug multi-isearch help-mode view debug
easy-mmode which-func imenu tooltip ediff-hook vc-hooks lisp-float-type
mwheel ns-win easymenu tool-bar dnd fontset image fringe lisp-mode
register page menu-bar rfn-eshadow timer select scroll-bar mldrag mouse
jit-lock font-lock syntax facemenu font-core frame cham georgian
utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean
japanese hebrew greek romanian slovak czech european ethiopic indian
cyrillic chinese case-table epa-hook jka-cmpr-hook help simple abbrev
loaddefs button minibuffer faces cus-face files text-properties overlay
md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote make-network-process ns multi-tty
emacs)