OpenSolaris Launch

1 files changed, 77 insertions, 0 deletions

diff --git a/usr/src/lib/libcurses/screen/wredrawln.c b/usr/src/lib/libcurses/screen/wredrawln.c
new file mode 100644
index 0000000000..1b8d0e9b85
--- /dev/null
+++ b/usr/src/lib/libcurses/screen/wredrawln.c
@@ -0,0 +1,77 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+/*	Copyright (c) 1988 AT&T	*/
+/*	  All Rights Reserved	*/
+
+/*
+ * University Copyright- Copyright (c) 1982, 1986, 1988
+ * The Regents of the University of California
+ * All Rights Reserved
+ *
+ * University Acknowledgment- Portions of this document are derived from
+ * software developed by the University of California, Berkeley, and its
+ * contributors.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+/*LINTLIBRARY*/
+
+/*
+ * This routine indicates to curses that a screen line is garbaged and
+ * should be thrown away before having anything written over the top of it.
+ * It could be used for programs such as editors which want a command to
+ * redraw just a single line. Such a command could be used in cases where
+ * there is a noisy line and redrawing the entire screen would be subject
+ * to even more noise. Just redrawing the single line gives some semblance
+ * of hope that it would show up unblemished.
+ *
+ * This is a more refined version of clearok
+ */
+
+#include	<sys/types.h>
+#include	"curses_inc.h"
+
+int
+wredrawln(WINDOW *win, int begline, int numlines)
+{
+	short	*firstch, *efirstch;
+
+	if (numlines <= 0)
+		return (ERR);
+	if (begline < 0)
+		begline = 0;
+	if (begline + numlines > win->_maxy)
+		numlines = win->_maxy - begline;
+
+	firstch = win->_firstch + begline;
+	efirstch = firstch + numlines;
+	while (firstch < efirstch)
+		*firstch++ = _REDRAW;
+
+	return (win->_immed ? wrefresh(win) : OK);
+}