nano

commit faa46a3c71724a81c7df25ca88b28dfce89e65ff
parent 03b168d0e389cabb07fd25eb0e3aa10d5cd00fa5
Author: Benno Schulenberg <bensberg@justemail.net>
Date:   Tue, 26 Jul 2016 21:15:28 +0200

screen: remove redundant redrawings of the entire edit window

(It may have been necessary in the past; there is no need for it now.)

This fixes https://savannah.gnu.org/bugs/?48633.

Diffstat:
M
src/winio.c
 | 
8
--------

1 file changed, 0 insertions(+), 8 deletions(-)
diff --git a/src/winio.c b/src/winio.c
@@ -2703,14 +2703,6 @@ void edit_scroll(scroll_dir direction, ssize_t nlines)
     /* Part 2: nlines is the number of lines in the scrolled region of
      * the edit window that we need to draw. */
 
-    /* If the top or bottom line of the file is now visible in the edit
-     * window, we need to draw the entire edit window. */
-    if ((direction == UPWARD && openfile->edittop ==
-	openfile->fileage) || (direction == DOWNWARD &&
-	openfile->edittop->lineno + editwinrows - 1 >=
-	openfile->filebot->lineno))
-	nlines = editwinrows;
-
     /* If the scrolled region contains only one line, and the line
      * before it is visible in the edit window, we need to draw it too.
      * If the scrolled region contains more than one line, and the lines