1 /****************************************************************************
2 * Copyright (c) 1998-2007,2008 Free Software Foundation, Inc. *
4 * Permission is hereby granted, free of charge, to any person obtaining a *
5 * copy of this software and associated documentation files (the *
6 * "Software"), to deal in the Software without restriction, including *
7 * without limitation the rights to use, copy, modify, merge, publish, *
8 * distribute, distribute with modifications, sublicense, and/or sell *
9 * copies of the Software, and to permit persons to whom the Software is *
10 * furnished to do so, subject to the following conditions: *
12 * The above copyright notice and this permission notice shall be included *
13 * in all copies or substantial portions of the Software. *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
23 * Except as contained in this notice, the name(s) of the above copyright *
24 * holders shall not be used in advertising or otherwise to promote the *
25 * sale, use or other dealings in this Software without prior written *
27 ****************************************************************************/
29 /****************************************************************************
30 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
31 * and: Eric S. Raymond <esr@snark.thyrsus.com> *
32 * and: Thomas E. Dickey 1996 on *
33 ****************************************************************************/
35 #include <curses.priv.h>
37 MODULE_ID("$Id: lib_screen.c,v 1.31 2008/08/16 19:05:37 tom Exp $")
39 #define MAX_SIZE 0x3fff /* 16k is big enough for a window or pad */
41 NCURSES_EXPORT(WINDOW *)
47 T((T_CALLED("getwin(%p)"), filep));
50 (void) fread(&tmp, sizeof(WINDOW), 1, filep);
53 || tmp._maxy > MAX_SIZE
55 || tmp._maxx > MAX_SIZE)
58 if (tmp._flags & _ISPAD) {
59 nwin = newpad(tmp._maxy + 1, tmp._maxx + 1);
61 nwin = newwin(tmp._maxy + 1, tmp._maxx + 1, 0, 0);
65 * We deliberately do not restore the _parx, _pary, or _parent
66 * fields, because the window hierarchy within which they
67 * made sense is probably gone.
70 nwin->_curx = tmp._curx;
71 nwin->_cury = tmp._cury;
72 nwin->_maxy = tmp._maxy;
73 nwin->_maxx = tmp._maxx;
74 nwin->_begy = tmp._begy;
75 nwin->_begx = tmp._begx;
76 nwin->_yoffset = tmp._yoffset;
77 nwin->_flags = tmp._flags & ~(_SUBWIN);
79 WINDOW_ATTRS(nwin) = WINDOW_ATTRS(&tmp);
80 nwin->_nc_bkgd = tmp._nc_bkgd;
82 nwin->_notimeout = tmp._notimeout;
83 nwin->_clear = tmp._clear;
84 nwin->_leaveok = tmp._leaveok;
85 nwin->_idlok = tmp._idlok;
86 nwin->_idcok = tmp._idcok;
87 nwin->_immed = tmp._immed;
88 nwin->_scroll = tmp._scroll;
89 nwin->_sync = tmp._sync;
90 nwin->_use_keypad = tmp._use_keypad;
91 nwin->_delay = tmp._delay;
93 nwin->_regtop = tmp._regtop;
94 nwin->_regbottom = tmp._regbottom;
96 if (tmp._flags & _ISPAD)
97 nwin->_pad = tmp._pad;
99 for (n = 0; n <= nwin->_maxy; n++) {
101 (void) fread(nwin->_line[n].text,
102 sizeof(NCURSES_CH_T),
103 (size_t) (nwin->_maxx + 1),
116 putwin(WINDOW *win, FILE *filep)
121 T((T_CALLED("putwin(%p,%p)"), win, filep));
124 size_t len = (size_t) (win->_maxx + 1);
127 if (fwrite(win, sizeof(WINDOW), 1, filep) != 1
131 for (n = 0; n <= win->_maxy; n++) {
132 if (fwrite(win->_line[n].text,
133 sizeof(NCURSES_CH_T), len, filep) != len
144 scr_restore(const char *file)
148 T((T_CALLED("scr_restore(%s)"), _nc_visbuf(file)));
150 if (_nc_access(file, R_OK) < 0
151 || (fp = fopen(file, "rb")) == 0) {
155 SP->_newscr = getwin(fp);
157 newscr = SP->_newscr;
165 scr_dump(const char *file)
169 T((T_CALLED("scr_dump(%s)"), _nc_visbuf(file)));
171 if (_nc_access(file, W_OK) < 0
172 || (fp = fopen(file, "wb")) == 0) {
175 (void) putwin(newscr, fp);
182 scr_init(const char *file)
186 T((T_CALLED("scr_init(%s)"), _nc_visbuf(file)));
188 if (exit_ca_mode && non_rev_rmcup)
191 if (_nc_access(file, R_OK) < 0
192 || (fp = fopen(file, "rb")) == 0) {
196 SP->_curscr = getwin(fp);
198 curscr = SP->_curscr;
206 scr_set(const char *file)
208 T((T_CALLED("scr_set(%s)"), _nc_visbuf(file)));
210 if (scr_init(file) == ERR) {
214 SP->_newscr = dupwin(curscr);
216 newscr = SP->_newscr;