xref: /onnv-gate/usr/src/lib/libcurses/screen/newwin.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 2004 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 /* allocate space for and set up defaults for a new _window */
45*0Sstevel@tonic-gate 
46*0Sstevel@tonic-gate #include	<stdlib.h>
47*0Sstevel@tonic-gate #include	<sys/types.h>
48*0Sstevel@tonic-gate #include	"curses_inc.h"
49*0Sstevel@tonic-gate 
50*0Sstevel@tonic-gate WINDOW	*
newwin(int nlines,int ncols,int by,int bx)51*0Sstevel@tonic-gate newwin(int nlines, int ncols, int by, int bx)
52*0Sstevel@tonic-gate {
53*0Sstevel@tonic-gate 	WINDOW	*win;
54*0Sstevel@tonic-gate 	int		counter = 0;
55*0Sstevel@tonic-gate 
56*0Sstevel@tonic-gate 	if (nlines <= 0)
57*0Sstevel@tonic-gate 		nlines = LINES - by;
58*0Sstevel@tonic-gate 	if (ncols <= 0)
59*0Sstevel@tonic-gate 		ncols = COLS - bx;
60*0Sstevel@tonic-gate 
61*0Sstevel@tonic-gate 	if ((by < 0) || (bx < 0) || ((win = _makenew(nlines, ncols, by,
62*0Sstevel@tonic-gate 	    bx)) == (WINDOW *) NULL) || (_image(win) == ERR)) {
63*0Sstevel@tonic-gate 		return ((WINDOW *) NULL);
64*0Sstevel@tonic-gate 	}
65*0Sstevel@tonic-gate 
66*0Sstevel@tonic-gate 	while (counter < nlines) {
67*0Sstevel@tonic-gate 		memSset(&win->_y[counter][0], (chtype) ' ', ncols);
68*0Sstevel@tonic-gate #ifdef	_VR3_COMPAT_CODE
69*0Sstevel@tonic-gate 		if (_y16update) {
70*0Sstevel@tonic-gate 			int	i = ncols;
71*0Sstevel@tonic-gate 
72*0Sstevel@tonic-gate 			while (i--)
73*0Sstevel@tonic-gate 				win->_y16[counter][i] = (_ochtype) ' ';
74*0Sstevel@tonic-gate 		}
75*0Sstevel@tonic-gate #endif	/* _VR3_COMPAT_CODE */
76*0Sstevel@tonic-gate 		counter++;
77*0Sstevel@tonic-gate 	}
78*0Sstevel@tonic-gate 
79*0Sstevel@tonic-gate 	win->_yoffset = SP->Yabove;
80*0Sstevel@tonic-gate 	return (win);
81*0Sstevel@tonic-gate }
82*0Sstevel@tonic-gate 
83*0Sstevel@tonic-gate int
_image(WINDOW * win)84*0Sstevel@tonic-gate _image(WINDOW *win)
85*0Sstevel@tonic-gate {
86*0Sstevel@tonic-gate 			int	i, nlines = win->_maxy;
87*0Sstevel@tonic-gate #ifdef	_VR3_COMPAT_CODE
88*0Sstevel@tonic-gate 			size_t oscols = win->_maxx * sizeof (_ochtype);
89*0Sstevel@tonic-gate #endif	/* _VR3_COMPAT_CODE */
90*0Sstevel@tonic-gate 			size_t scols = win->_maxx * sizeof (chtype);
91*0Sstevel@tonic-gate 			chtype	**_y = win->_y;
92*0Sstevel@tonic-gate #ifdef	_VR3_COMPAT_CODE
93*0Sstevel@tonic-gate 			_ochtype	**_y16 = win->_y16;
94*0Sstevel@tonic-gate #endif	/* _VR3_COMPAT_CODE */
95*0Sstevel@tonic-gate 
96*0Sstevel@tonic-gate 	for (i = 0; i < nlines; i++) {
97*0Sstevel@tonic-gate #ifdef	_VR3_COMPAT_CODE
98*0Sstevel@tonic-gate 		if (((_y[i] = (chtype *) malloc(scols)) == NULL) ||
99*0Sstevel@tonic-gate 		    ((_y16update) && ((_y16[i] = (_ochtype *)
100*0Sstevel@tonic-gate 		    malloc(oscols)) == NULL)))
101*0Sstevel@tonic-gate #else	/* _VR3_COMPAT_CODE */
102*0Sstevel@tonic-gate 			if ((_y[i] = (chtype *) malloc(scols)) ==
103*0Sstevel@tonic-gate 			    NULL)
104*0Sstevel@tonic-gate #endif	/* _VR3_COMPAT_CODE */
105*0Sstevel@tonic-gate 				{
106*0Sstevel@tonic-gate 				int	j;
107*0Sstevel@tonic-gate 
108*0Sstevel@tonic-gate 				curs_errno = CURS_BAD_MALLOC;
109*0Sstevel@tonic-gate #ifdef	DEBUG
110*0Sstevel@tonic-gate 				strcpy(curs_parm_err, "_image");
111*0Sstevel@tonic-gate #endif	/* DEBUG */
112*0Sstevel@tonic-gate #ifdef	_VR3_COMPAT_CODE
113*0Sstevel@tonic-gate 				for (j = 0; j <= i; j++) {
114*0Sstevel@tonic-gate 					if (_y[j] != NULL)
115*0Sstevel@tonic-gate 					free((char *) _y[j]);
116*0Sstevel@tonic-gate 					if ((_y16update) && (_y16[j] != NULL))
117*0Sstevel@tonic-gate 						free((char *) _y16[j]);
118*0Sstevel@tonic-gate 				}
119*0Sstevel@tonic-gate #else	/* _VR3_COMPAT_CODE */
120*0Sstevel@tonic-gate 				for (j = 0; j < i; j++)
121*0Sstevel@tonic-gate 					free((char *) _y[j]);
122*0Sstevel@tonic-gate #endif	/* _VR3_COMPAT_CODE */
123*0Sstevel@tonic-gate 
124*0Sstevel@tonic-gate 				free((char *) win->_firstch);
125*0Sstevel@tonic-gate 				free((char *) win->_y);
126*0Sstevel@tonic-gate #ifdef	_VR3_COMPAT_CODE
127*0Sstevel@tonic-gate 				if ((_y16update) && (win->_y16 != NULL))
128*0Sstevel@tonic-gate 					free((char *) win->_y16);
129*0Sstevel@tonic-gate #endif	/* _VR3_COMPAT_CODE */
130*0Sstevel@tonic-gate 				free((char *) win);
131*0Sstevel@tonic-gate 				return (ERR);
132*0Sstevel@tonic-gate 			}
133*0Sstevel@tonic-gate 	}
134*0Sstevel@tonic-gate 	return (OK);
135*0Sstevel@tonic-gate }
136