xref: /onnv-gate/usr/src/ucblib/libcurses/initscr.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * Copyright 2001 Sun Microsystems, Inc.  All rights reserved.
3*0Sstevel@tonic-gate  * Use is subject to license terms.
4*0Sstevel@tonic-gate  */
5*0Sstevel@tonic-gate 
6*0Sstevel@tonic-gate /*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
7*0Sstevel@tonic-gate /*	  All Rights Reserved  	*/
8*0Sstevel@tonic-gate 
9*0Sstevel@tonic-gate /*
10*0Sstevel@tonic-gate  * Copyright (c) 1980 Regents of the University of California.
11*0Sstevel@tonic-gate  * All rights reserved.  The Berkeley software License Agreement
12*0Sstevel@tonic-gate  * specifies the terms and conditions for redistribution.
13*0Sstevel@tonic-gate  */
14*0Sstevel@tonic-gate 
15*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
16*0Sstevel@tonic-gate 
17*0Sstevel@tonic-gate /*LINTLIBRARY*/
18*0Sstevel@tonic-gate 
19*0Sstevel@tonic-gate #ifndef lint
20*0Sstevel@tonic-gate static char
21*0Sstevel@tonic-gate sccsid[] = "@(#)initscr.c 1.6 88/02/08 SMI"; /* from UCB 5.1 85/06/07 */
22*0Sstevel@tonic-gate #endif /* not lint */
23*0Sstevel@tonic-gate 
24*0Sstevel@tonic-gate #include	"curses.ext"
25*0Sstevel@tonic-gate #include	<term.h>
26*0Sstevel@tonic-gate #include	<stdlib.h>
27*0Sstevel@tonic-gate #include	<signal.h>
28*0Sstevel@tonic-gate 
29*0Sstevel@tonic-gate /*
30*0Sstevel@tonic-gate  *	This routine initializes the current and standard screen.
31*0Sstevel@tonic-gate  */
32*0Sstevel@tonic-gate 
33*0Sstevel@tonic-gate WINDOW *
initscr(void)34*0Sstevel@tonic-gate initscr(void)
35*0Sstevel@tonic-gate {
36*0Sstevel@tonic-gate 	char	*sp;
37*0Sstevel@tonic-gate 
38*0Sstevel@tonic-gate #ifdef DEBUG
39*0Sstevel@tonic-gate 	fprintf(outf, "INITSCR()\n");
40*0Sstevel@tonic-gate #endif
41*0Sstevel@tonic-gate 	if (My_term)
42*0Sstevel@tonic-gate 		(void) setterm(Def_term);
43*0Sstevel@tonic-gate 	else {
44*0Sstevel@tonic-gate 		(void) gettmode();
45*0Sstevel@tonic-gate 		if ((sp = getenv("TERM")) == NULL)
46*0Sstevel@tonic-gate 			sp = Def_term;
47*0Sstevel@tonic-gate 		(void) setterm(sp);
48*0Sstevel@tonic-gate #ifdef DEBUG
49*0Sstevel@tonic-gate 		fprintf(outf, "INITSCR: term = %s\n", sp);
50*0Sstevel@tonic-gate #endif
51*0Sstevel@tonic-gate 	}
52*0Sstevel@tonic-gate 	(void) _puts(TI);
53*0Sstevel@tonic-gate 	(void) _puts(VS);
54*0Sstevel@tonic-gate #ifdef SIGTSTP
55*0Sstevel@tonic-gate 	(void) signal(SIGTSTP, (void(*)(int))tstp);
56*0Sstevel@tonic-gate #endif
57*0Sstevel@tonic-gate 	if (curscr != NULL) {
58*0Sstevel@tonic-gate #ifdef DEBUG
59*0Sstevel@tonic-gate 		fprintf(outf, "INITSCR: curscr = 0%o\n", curscr);
60*0Sstevel@tonic-gate #endif
61*0Sstevel@tonic-gate 		(void) delwin(curscr);
62*0Sstevel@tonic-gate 	}
63*0Sstevel@tonic-gate #ifdef DEBUG
64*0Sstevel@tonic-gate 	fprintf(outf, "LINES = %d, COLS = %d\n", LINES, COLS);
65*0Sstevel@tonic-gate #endif
66*0Sstevel@tonic-gate 	if ((curscr = newwin(LINES, COLS, 0, 0)) == ERR)
67*0Sstevel@tonic-gate 		return (ERR);
68*0Sstevel@tonic-gate 	clearok(curscr, TRUE);
69*0Sstevel@tonic-gate 	curscr->_flags &= ~_FULLLINE;
70*0Sstevel@tonic-gate 	if (stdscr != NULL) {
71*0Sstevel@tonic-gate #ifdef DEBUG
72*0Sstevel@tonic-gate 		fprintf(outf, "INITSCR: stdscr = 0%o\n", stdscr);
73*0Sstevel@tonic-gate #endif
74*0Sstevel@tonic-gate 		(void) delwin(stdscr);
75*0Sstevel@tonic-gate 	}
76*0Sstevel@tonic-gate 	stdscr = newwin(LINES, COLS, 0, 0);
77*0Sstevel@tonic-gate 	return (stdscr);
78*0Sstevel@tonic-gate }
79