X-Git-Url: https://git.hcoop.net/bpt/emacs.git/blobdiff_plain/11fdef7d0cf3ef1ce30d1cd09ca9ca9a2b099d20..026b174672c427b035009911de305992a94098d6:/lisp/windmove.el

diff --git a/lisp/windmove.el b/lisp/windmove.el
index 2aef37dd4c..ff41ebbbcd 100644
--- a/lisp/windmove.el
+++ b/lisp/windmove.el
@@ -1,6 +1,6 @@
 ;;; windmove.el --- directional window-selection routines
 ;;
-;; Copyright (C) 1998-2011 Free Software Foundation, Inc.
+;; Copyright (C) 1998-2014 Free Software Foundation, Inc.
 ;;
 ;; Author: Hovav Shacham (hovav@cs.stanford.edu)
 ;; Created: 17 October 1998
@@ -94,7 +94,7 @@
 
 ;; Installation:
 ;;
-;; Put the following line in your `.emacs' file:
+;; Put the following line in your init file:
 ;;
 ;;     (windmove-default-keybindings)         ; shifted arrow keys
 ;;
@@ -118,7 +118,7 @@
 ;;     (setq windmove-window-distance-delta 2)
 ;;
 
-;; Acknowledgements:
+;; Acknowledgments:
 ;;
 ;; Special thanks to Julian Assange (proff@iq.org), whose
 ;; change-windows-intuitively.el predates Windmove, and provided the
@@ -245,7 +245,7 @@ placement bugs in old versions of Emacs."
 ;; Actually, the whole subject of the minibuffer edge of the frame is
 ;; rather messy.  It turns out that with a sufficiently large delta,
 ;; we can fly off the bottom edge of the frame and miss the minibuffer
-;; altogther.  This, I think, is never right: if there's a minibuffer
+;; altogether.  This, I think, is never right: if there's a minibuffer
 ;; and you're not in it, and you move down, the minibuffer should be
 ;; in your way.
 ;;
@@ -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
@@ -459,24 +459,17 @@ movement is relative to."
                windmove-window-distance-delta))) ; (x, y1+d-1)
      (t (error "Invalid direction of movement: %s" dir)))))
 
+;; Rewritten on 2013-12-13 using `window-in-direction'.  After the
+;; pixelwise change the old approach didn't work any more.  martin
 (defun windmove-find-other-window (dir &optional arg window)
   "Return the window object in direction DIR.
 DIR, ARG, and WINDOW are handled as by `windmove-other-window-loc'."
-  (let* ((actual-current-window (or window (selected-window)))
-         (raw-other-window-loc
-          (windmove-other-window-loc dir arg actual-current-window))
-         (constrained-other-window-loc
-          (windmove-constrain-loc-for-movement raw-other-window-loc
-                                               actual-current-window
-                                               dir))
-         (other-window-loc
-          (if windmove-wrap-around
-            (windmove-wrap-loc-for-movement constrained-other-window-loc
-                                            actual-current-window)
-            constrained-other-window-loc)))
-    (window-at (car other-window-loc)
-               (cdr other-window-loc))))
-
+  (window-in-direction
+   (cond
+    ((eq dir 'up) 'above)
+    ((eq dir 'down) 'below)
+    (t dir))
+   window nil arg windmove-wrap-around t))
 
 ;; Selects the window that's hopefully at the location returned by
 ;; `windmove-other-window-loc', or screams if there's no window there.