Install ncurses as -lcurses and <curses.h>

Install BSD curses library as -locurses and <ocurses.h>

1 files changed, 82 insertions, 0 deletions

diff --git a/lib/libocurses/overlay.c b/lib/libocurses/overlay.c
new file mode 100644
index 00000000000..9f35c79e3fb
--- /dev/null
+++ b/lib/libocurses/overlay.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 1981, 1993, 1994
+ *	The 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[] = "@(#)overlay.c	8.2 (Berkeley) 5/4/94";
+#endif	/* not lint */
+
+#include <ctype.h>
+
+#include "curses.h"
+
+/*
+ * overlay --
+ *	Writes win1 on win2 non-destructively.
+ */
+int
+overlay(win1, win2)
+	register WINDOW *win1, *win2;
+{
+
+	register int x, y, y1, y2, endy, endx, starty, startx;
+	register __LDATA *sp, *end;
+
+#ifdef DEBUG
+	__CTRACE("overlay: (%0.2o, %0.2o);\n", win1, win2);
+#endif
+	starty = max(win1->begy, win2->begy);
+	startx = max(win1->begx, win2->begx);
+	endy = min(win1->maxy + win1->begy, win2->maxy + win2->begx);
+	endx = min(win1->maxx + win1->begx, win2->maxx + win2->begx);
+#ifdef DEBUG
+	__CTRACE("overlay: from (%d,%d) to (%d,%d)\n",
+	    starty, startx, endy, endx);
+#endif
+	if (starty >= endy || startx >= endx)
+		return (OK);
+	y1 = starty - win1->begy;
+	y2 = starty - win2->begy;
+	for (y = starty; y < endy; y++, y1++, y2++) {
+		end = &win1->lines[y1]->line[endx - win1->begx];
+		x = startx - win2->begx;
+		for (sp = &win1->lines[y1]->line[startx - win1->begx]; 
+		     sp < end; sp++) {
+			if (!isspace(sp->ch)) {
+				wmove(win2, y2, x);
+				__waddch(win2, sp);
+			}
+			x++;
+		}
+	}
+	return (OK);
+}