1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 1997 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /* Copyright (c) 1988 AT&T */
28 /* All Rights Reserved */
29
30 /*
31 * University Copyright- Copyright (c) 1982, 1986, 1988
32 * The Regents of the University of California
33 * All Rights Reserved
34 *
35 * University Acknowledgment- Portions of this document are derived from
36 * software developed by the University of California, Berkeley, and its
37 * contributors.
38 */
39
40 /*LINTLIBRARY*/
41
42 #include <stdlib.h>
43 #include <string.h>
44 #include <sys/types.h>
45 #include "curses_inc.h"
46
47 /* This routine sets up a window buffer and returns a pointer to it. */
48
49 WINDOW *
_makenew(int nlines,int ncols,int begy,int begx)50 _makenew(int nlines, int ncols, int begy, int begx)
51 {
52 /* order the register allocations against highest usage */
53 WINDOW *win;
54
55 #ifdef DEBUG
56 if (outf)
57 fprintf(outf, "MAKENEW(%d, %d, %d, %d)\n",
58 nlines, ncols, begy, begx);
59 #endif /* DEBUG */
60
61 if ((win = (WINDOW *) malloc(sizeof (WINDOW))) == NULL)
62 goto out_no_win;
63 if ((win->_y = (chtype **) malloc(nlines * sizeof (chtype *))) == NULL)
64 goto out_win;
65 #ifdef _VR3_COMPAT_CODE
66 if ((_y16update) && ((win->_y16 = (_ochtype **)
67 calloc(1, nlines * sizeof (_ochtype *))) == NULL)) {
68 goto out_y16;
69 }
70 #endif /* _VR3_COMPAT_CODE */
71 if ((win->_firstch = (short *) malloc(2 * nlines * sizeof (short)))
72 == NULL) {
73 #ifdef _VR3_COMPAT_CODE
74 if ((_y16update) && (win->_y16 != NULL))
75 free((char *) win->_y16);
76 out_y16:
77 #endif /* _VR3_COMPAT_CODE */
78 free((char *) win->_y);
79 out_win:
80 free((char *) win);
81 out_no_win:
82 curs_errno = CURS_BAD_MALLOC;
83 #ifdef DEBUG
84 strcpy(curs_parm_err, "_makenew");
85 #endif /* DEBUG */
86 return ((WINDOW *) NULL);
87 } else
88 win->_lastch = win->_firstch + nlines;
89
90 win->_cury = win->_curx = 0;
91 /*LINTED*/
92 win->_maxy = (short) nlines;
93 /*LINTED*/
94 win->_maxx = (short) ncols;
95 /*LINTED*/
96 win->_begy = (short) begy;
97 /*LINTED*/
98 win->_begx = (short) begx;
99 win->_clear = (((begy + SP->Yabove + begx) == 0) &&
100 (nlines >= (LINES + SP->Yabove)) && (ncols >= COLS));
101 win->_leave = win->_scroll = win->_use_idl = win->_use_keypad =
102 win->_notimeout = win->_immed = win->_sync = FALSE;
103 win->_use_idc = TRUE;
104 win->_ndescs = win->_tmarg = 0;
105 win->_bmarg = nlines - 1;
106 win->_bkgd = _BLNKCHAR;
107 win->_delay = win->_parx = win->_pary = -1;
108 win->_attrs = A_NORMAL;
109 win->_flags = _WINCHANGED;
110 win->_parent = win->_padwin = (WINDOW *) NULL;
111 (void) memset((char *) win->_firstch, 0, (nlines * sizeof (short)));
112 {
113 short *lastch = win->_lastch,
114 *elastch = lastch + nlines;
115
116 ncols--;
117 while (lastch < elastch)
118 /*LINTED*/
119 *lastch++ = (short) ncols;
120 }
121
122 win->_insmode = FALSE;
123 win->_index = 0;
124 win->_nbyte = -1;
125
126 #ifdef DEBUG
127 if (outf) {
128 fprintf(outf, "MAKENEW: win->_clear = %d\n", win->_clear);
129 fprintf(outf, "MAKENEW: win->_flags = %0.2o\n", win->_flags);
130 fprintf(outf, "MAKENEW: win->_maxy = %d\n", win->_maxy);
131 fprintf(outf, "MAKENEW: win->_maxx = %d\n", win->_maxx);
132 fprintf(outf, "MAKENEW: win->_begy = %d\n", win->_begy);
133 fprintf(outf, "MAKENEW: win->_begx = %d\n", win->_begx);
134 }
135 #endif /* DEBUG */
136 return (win);
137 }
138