release/1.0.0_cvs

1 files changed, 69 insertions, 0 deletions

diff --git a/lib/libcurses/scroll.c b/lib/libcurses/scroll.c
new file mode 100644
index 000000000000..25cf822cba84
--- /dev/null
+++ b/lib/libcurses/scroll.c
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 1981 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)scroll.c	5.4 (Berkeley) 6/1/90";
+#endif /* not lint */
+
+# include	"curses.ext"
+
+/*
+ *	This routine scrolls the window up a line.
+ *
+ */
+scroll(win)
+register  WINDOW	*win;
+{
+	register int	oy, ox;
+
+# ifdef DEBUG
+	fprintf(outf, "SCROLL(%0.2o)\n", win);
+# endif
+
+	if (!win->_scroll)
+		return ERR;
+
+	getyx(win, oy, ox);
+	wmove(win, 0, 0);
+	wdeleteln(win);
+	wmove(win, oy, ox);
+
+	if (win == curscr) {
+		_putchar('\n');
+		if (!NONL)
+			win->_curx = 0;
+# ifdef DEBUG
+		fprintf(outf, "SCROLL: win == curscr\n");
+# endif
+	}
+}