master 861eee4: Work around pixel scrolling issues when line numbers are displayed

[Po Lu]

branch: master
commit 861eee42418f510679a6e3ae1ee433353194cb68
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>

    Work around pixel scrolling issues when line numbers are displayed
    
    * lisp/pixel-scroll.el (pixel-point-and-height-at-unseen-line):
    Compare start position against line number display width
    instead.
---
 lisp/pixel-scroll.el | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lisp/pixel-scroll.el b/lisp/pixel-scroll.el
index 142ebf9..fa0185b 100644
--- a/lisp/pixel-scroll.el
+++ b/lisp/pixel-scroll.el
@@ -417,7 +417,8 @@ window, and the pixel height of that line."
     (set-window-start nil pos0 t)
     (set-window-vscroll nil vscroll0 t)
     (when (and line-height
-               (> (car (posn-x-y (posn-at-point pos0))) 0))
+               (> (car (posn-x-y (posn-at-point pos0)))
+                  (line-number-display-width t)))
       (setq line-height (- line-height
                            (save-excursion
                              (goto-char pos0)