OpenSolaris Launch

1 files changed, 120 insertions, 0 deletions

diff --git a/usr/src/ucblib/libcurses/addch.c b/usr/src/ucblib/libcurses/addch.c
new file mode 100644
index 0000000000..69259a02e3
--- /dev/null
+++ b/usr/src/ucblib/libcurses/addch.c
@@ -0,0 +1,120 @@
+/*
+ * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+/*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
+/*	  All Rights Reserved  	*/
+
+/*
+ * Copyright (c) 1980 Regents of the University of California.
+ * All rights reserved.  The Berkeley software License Agreement
+ * specifies the terms and conditions for redistribution.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#ifndef lint
+static char
+sccsid[] = "@(#)addch.c 1.6 88/02/08 SMI"; /* from UCB 5.1 85/06/07 */
+#endif	/* not lint */
+
+#include	"curses.ext"
+
+/* forward declaration */
+static void set_ch(WINDOW *, int, int, int);
+
+/*
+ *	This routine adds the character to the current position
+ */
+
+int
+waddch(WINDOW *win, char c)
+{
+	int		x, y;
+	int		newx;
+
+	x = win->_curx;
+	y = win->_cury;
+#ifdef FULLDEBUG
+	fprintf(outf, "ADDCH('%c') at (%d, %d)\n", c, y, x);
+#endif
+	switch (c) {
+	case '\t':
+		for (newx = x + (8 - (x & 07)); x < newx; x++)
+			if (waddch(win, ' ') == ERR)
+				return (ERR);
+		return (OK);
+
+	default:
+#ifdef FULLDEBUG
+		fprintf(outf, "ADDCH: 1: y = %d, x = %d, firstch = %d,"
+		    " lastch = %d\n", y, x, win->_firstch[y],
+		    win->_lastch[y]);
+#endif
+		if (win->_flags & _STANDOUT)
+			c |= _STANDOUT;
+		set_ch(win, y, x, c);
+		win->_y[y][x++] = c;
+		if (x >= win->_maxx) {
+			x = 0;
+newline:
+			if (++y >= win->_maxy)
+				if (win->_scroll) {
+					(void) scroll(win);
+					--y;
+				}
+				else
+					return (ERR);
+		}
+#ifdef FULLDEBUG
+		fprintf(outf, "ADDCH: 2: y = %d, x = %d, firstch = %d,"
+		    " lastch = %d\n", y, x, win->_firstch[y],
+		    win->_lastch[y]);
+#endif
+		break;
+	case '\n':
+		(void) wclrtoeol(win);
+		if (!NONL)
+			x = 0;
+		goto newline;
+	case '\r':
+		x = 0;
+		break;
+	case '\b':
+		if (--x < 0)
+			x = 0;
+		break;
+	}
+	win->_curx = (short)x;
+	win->_cury = (short)y;
+	return (OK);
+}
+
+/*
+ * set_ch:
+ *	Set the first and last change flags for this window.
+ */
+
+static void
+set_ch(WINDOW *win, int y, int x, int ch)
+{
+#ifdef	FULLDEBUG
+	fprintf(outf, "SET_CH(%0.2o, %d, %d)\n", win, y, x);
+#endif
+	if (win->_y[y][x] != ch) {
+		x += win->_ch_off;
+		if (win->_firstch[y] == _NOCHANGE)
+			win->_firstch[y] = win->_lastch[y] = (short)x;
+		else if (x < win->_firstch[y])
+			win->_firstch[y] = (short)x;
+		else if (x > win->_lastch[y])
+			win->_lastch[y] = (short)x;
+#ifdef FULLDEBUG
+		fprintf(outf, "SET_CH: change gives f/l: %d/%d [%d/%d]\n",
+		    win->_firstch[y], win->_lastch[y],
+		    win->_firstch[y] - win->_ch_off,
+		    win->_lastch[y] - win->_ch_off);
+#endif
+	}
+}