xref: /onnv-gate/usr/src/lib/libcurses/screen/getsyx.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate /*	Copyright (c) 1988 AT&T	*/
28*0Sstevel@tonic-gate /*	  All Rights Reserved	*/
29*0Sstevel@tonic-gate 
30*0Sstevel@tonic-gate /*
31*0Sstevel@tonic-gate  * University Copyright- Copyright (c) 1982, 1986, 1988
32*0Sstevel@tonic-gate  * The Regents of the University of California
33*0Sstevel@tonic-gate  * All Rights Reserved
34*0Sstevel@tonic-gate  *
35*0Sstevel@tonic-gate  * University Acknowledgment- Portions of this document are derived from
36*0Sstevel@tonic-gate  * software developed by the University of California, Berkeley, and its
37*0Sstevel@tonic-gate  * contributors.
38*0Sstevel@tonic-gate  */
39*0Sstevel@tonic-gate 
40*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
41*0Sstevel@tonic-gate 
42*0Sstevel@tonic-gate /*LINTLIBRARY*/
43*0Sstevel@tonic-gate 
44*0Sstevel@tonic-gate #include	<sys/types.h>
45*0Sstevel@tonic-gate #include	"curses_inc.h"
46*0Sstevel@tonic-gate 
47*0Sstevel@tonic-gate /*
48*0Sstevel@tonic-gate  * Get the current screen coordinates (y, x).
49*0Sstevel@tonic-gate  *
50*0Sstevel@tonic-gate  * The current screen coordinates are defined as the last place that
51*0Sstevel@tonic-gate  * the cursor was placed by a wnoutrefresh(), pnoutrefresh() or setsyx()
52*0Sstevel@tonic-gate  * call. If leaveok() was true for the last window refreshed, then
53*0Sstevel@tonic-gate  * return (-1, -1) so that setsyx() can reset the leaveok flag.
54*0Sstevel@tonic-gate  *
55*0Sstevel@tonic-gate  * This function is actually called by the macro getsyx(y, x), which is
56*0Sstevel@tonic-gate  * defined in curses.h as:
57*0Sstevel@tonic-gate  *
58*0Sstevel@tonic-gate  * #define getsyx(y, x)	_getsyx(&y, &x)
59*0Sstevel@tonic-gate  *
60*0Sstevel@tonic-gate  * Note that this macro just adds in the '&'. In this way, getsyx()
61*0Sstevel@tonic-gate  * is parallel with the other getyx() routines which don't require
62*0Sstevel@tonic-gate  * ampersands. The reason that this can't all be a macro is that
63*0Sstevel@tonic-gate  * that we need to access SP, which is normally not available in
64*0Sstevel@tonic-gate  * user-level routines.
65*0Sstevel@tonic-gate  */
66*0Sstevel@tonic-gate 
67*0Sstevel@tonic-gate int
_getsyx(int * yp,int * xp)68*0Sstevel@tonic-gate _getsyx(int *yp, int *xp)
69*0Sstevel@tonic-gate {
70*0Sstevel@tonic-gate 	if (SP->virt_scr->_leave)
71*0Sstevel@tonic-gate 		*yp = *xp = -1;
72*0Sstevel@tonic-gate 	else {
73*0Sstevel@tonic-gate 		*yp = _virtscr->_cury - SP->Yabove;
74*0Sstevel@tonic-gate 		*xp = _virtscr->_curx;
75*0Sstevel@tonic-gate 	}
76*0Sstevel@tonic-gate 	return (OK);
77*0Sstevel@tonic-gate }
78