fix edit_scroll() redundancy

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@2884 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
2005-07-17 15:42:21 +00:00 · 2005-07-17 15:42:21 +00:00 · dbeb503316
parent 4c221675a8
commit dbeb503316
1 changed files with 4 additions and 3 deletions
--- a/src/winio.c
+++ b/src/winio.c
@ -3544,9 +3544,10 @@ void edit_scroll(updown direction, int nlines)
 	openfile->fileage)
 	nlines = editwinrows;

-    /* Add two to nlines, to account for the lines before and after the
-     * scrolled region. */
-    nlines += 2;
+    /* Make nlines account for the lines before and after the scrolled
+     * region, if they're onsccreen. */
+    nlines += (nlines <= editwinrows - 2) ? 2 :
+	(nlines == editwinrows - 1) ? 1 : 0;

    /* If we scrolled up, we're on the line before the scrolled
     * region. */