From 93c6248956a42d163100348d08df1782e415bd7a Mon Sep 17 00:00:00 2001
From: David Lawrence Ramsey <pooka109@gmail.com>
Date: Tue, 28 Mar 2017 08:45:59 -0500
Subject: [PATCH] display: don't compensate for chunks before firstcolumn

The number of rows to draw shouldn't be compensated for the chunks
of edittop that are before firstcolumn, because they are offscreen.

This completes the fix for https://savannah.gnu.org/bugs/?50621.
---
 src/winio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/winio.c b/src/winio.c
index 531ac552..cbe16d88 100644
--- a/src/winio.c
+++ b/src/winio.c
@@ -2921,8 +2921,8 @@ void edit_scroll(scroll_dir direction, int nrows)
     while (i > 0 && line != NULL) {
 #ifndef NANO_TINY
 	/* If the first blank row is in the middle of a softwrapped line,
-	 * compensate for the earlier chunks of that line. */
-	if (ISSET(SOFTWRAP) && i == nrows)
+	 * compensate for the earlier onscreen chunks of that line. */
+	if (ISSET(SOFTWRAP) && i == nrows && line != openfile->edittop)
 	    i += strnlenpt(line->data, leftedge) / editwincols;
 #endif
 	i -= update_line(line, (line == openfile->current) ?