fix edit_scroll() redundancy

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@2884 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

fix edit_scroll() redundancy
git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@2884 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
dbeb5033 · David Lawrence Ramsey · 4c221675 · dbeb5033
Commit dbeb5033 authored 19 years ago by David Lawrence Ramsey
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with 4 additions and 3 deletions
+4 -3
--- 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. */