Fix windmove-reference-loc miscalculation.

2 files changed, 14 insertions, 9 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 40e4a8a844a..4790ec98cf6 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,8 @@
+2012-01-21  Jérémy Compostella  <jeremy.compostella@gmail.com>
+
+        * windmove.el (windmove-reference-loc): Fix
+        windmove-reference-loc miscalculation.
+
 2012-01-21  Jay Belanger  <jay.p.belanger@gmail.com>
 
         * calc/calc-units.el (math-put-default-units): Don't use "1" as a
diff --git a/lisp/windmove.el b/lisp/windmove.el
index 10a564419fb..0523530869b 100644
--- a/lisp/windmove.el
+++ b/lisp/windmove.el
@@ -417,17 +417,17 @@ supplied, if ARG is greater or smaller than zero, respectively."
                               (- (nth 3 edges) 1))))
       (cond
        ((> effective-arg 0)
-          top-left)
+        top-left)
        ((< effective-arg 0)
-          bottom-right)
+        bottom-right)
        ((= effective-arg 0)
-          (windmove-coord-add
-             top-left
-             (let ((col-row
-                    (posn-col-row
-                     (posn-at-point (window-point window) window))))
-               (cons (- (car col-row) (window-hscroll window))
-                     (cdr col-row)))))))))
+        (windmove-coord-add
+         top-left
+         ;; Don't care whether window is horizontally scrolled -
+         ;; `posn-at-point' handles that already.  See also:
+         ;; http://lists.gnu.org/archive/html/emacs-devel/2012-01/msg00638.html
+         (posn-col-row
+          (posn-at-point (window-point window) window))))))))
 
 ;; This uses the reference location in the current window (calculated
 ;; by `windmove-reference-loc' above) to find a reference location