1 /****************************************************************************
2 * Copyright (c) 1998-2008,2009 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 * and: Juergen Pfeifer 2009 *
34 ****************************************************************************/
36 #include <curses.priv.h>
39 #define CUR SP_TERMTYPE
42 MODULE_ID("$Id: lib_screen.c,v 1.38 2009/10/24 22:08:55 tom Exp $")
44 #define MAX_SIZE 0x3fff /* 16k is big enough for a window or pad */
46 NCURSES_EXPORT(WINDOW *)
47 NCURSES_SP_NAME(getwin) (NCURSES_SP_DCLx FILE *filep)
52 T((T_CALLED("getwin(%p)"), (void *) filep));
55 if (fread(&tmp, 1, sizeof(WINDOW), filep) < sizeof(WINDOW)
58 || tmp._maxy > MAX_SIZE
60 || tmp._maxx > MAX_SIZE) {
64 if (tmp._flags & _ISPAD) {
65 nwin = NCURSES_SP_NAME(newpad) (NCURSES_SP_ARGx
69 nwin = NCURSES_SP_NAME(newwin) (NCURSES_SP_ARGx
75 * We deliberately do not restore the _parx, _pary, or _parent
76 * fields, because the window hierarchy within which they
77 * made sense is probably gone.
80 size_t linesize = sizeof(NCURSES_CH_T) * (size_t) (tmp._maxx + 1);
82 nwin->_curx = tmp._curx;
83 nwin->_cury = tmp._cury;
84 nwin->_maxy = tmp._maxy;
85 nwin->_maxx = tmp._maxx;
86 nwin->_begy = tmp._begy;
87 nwin->_begx = tmp._begx;
88 nwin->_yoffset = tmp._yoffset;
89 nwin->_flags = tmp._flags & ~(_SUBWIN);
91 WINDOW_ATTRS(nwin) = WINDOW_ATTRS(&tmp);
92 nwin->_nc_bkgd = tmp._nc_bkgd;
94 nwin->_notimeout = tmp._notimeout;
95 nwin->_clear = tmp._clear;
96 nwin->_leaveok = tmp._leaveok;
97 nwin->_idlok = tmp._idlok;
98 nwin->_idcok = tmp._idcok;
99 nwin->_immed = tmp._immed;
100 nwin->_scroll = tmp._scroll;
101 nwin->_sync = tmp._sync;
102 nwin->_use_keypad = tmp._use_keypad;
103 nwin->_delay = tmp._delay;
105 nwin->_regtop = tmp._regtop;
106 nwin->_regbottom = tmp._regbottom;
108 if (tmp._flags & _ISPAD)
109 nwin->_pad = tmp._pad;
111 for (n = 0; n <= nwin->_maxy; n++) {
113 if (fread(nwin->_line[n].text, 1, linesize, filep) < linesize
125 NCURSES_EXPORT(WINDOW *)
128 return NCURSES_SP_NAME(getwin) (CURRENT_SCREEN, filep);
133 putwin(WINDOW *win, FILE *filep)
138 T((T_CALLED("putwin(%p,%p)"), (void *) win, (void *) filep));
141 size_t len = (size_t) (win->_maxx + 1);
144 if (fwrite(win, sizeof(WINDOW), 1, filep) != 1
148 for (n = 0; n <= win->_maxy; n++) {
149 if (fwrite(win->_line[n].text,
150 sizeof(NCURSES_CH_T), len, filep) != len
161 NCURSES_SP_NAME(scr_restore) (NCURSES_SP_DCLx const char *file)
165 T((T_CALLED("scr_restore(%p,%s)"), (void *) SP_PARM, _nc_visbuf(file)));
167 if (_nc_access(file, R_OK) < 0
168 || (fp = fopen(file, "rb")) == 0) {
171 delwin(NewScreen(SP_PARM));
172 NewScreen(SP_PARM) = getwin(fp);
174 newscr = NewScreen(SP_PARM);
183 scr_restore(const char *file)
185 return NCURSES_SP_NAME(scr_restore) (CURRENT_SCREEN, file);
190 scr_dump(const char *file)
194 T((T_CALLED("scr_dump(%s)"), _nc_visbuf(file)));
196 if (_nc_access(file, W_OK) < 0
197 || (fp = fopen(file, "wb")) == 0) {
200 (void) putwin(newscr, fp);
207 NCURSES_SP_NAME(scr_init) (NCURSES_SP_DCLx const char *file)
212 T((T_CALLED("scr_init(%p,%s)"), (void *) SP_PARM, _nc_visbuf(file)));
215 #ifdef USE_TERM_DRIVER
216 InfoOf(SP_PARM).caninit
218 !(exit_ca_mode && non_rev_rmcup)
221 if (_nc_access(file, R_OK) >= 0
222 && (fp = fopen(file, "rb")) != 0) {
223 delwin(CurScreen(SP_PARM));
224 CurScreen(SP_PARM) = getwin(fp);
226 curscr = CurScreen(SP_PARM);
237 scr_init(const char *file)
239 return NCURSES_SP_NAME(scr_init) (CURRENT_SCREEN, file);
244 NCURSES_SP_NAME(scr_set) (NCURSES_SP_DCLx const char *file)
246 T((T_CALLED("scr_set(%p,%s)"), (void *) SP_PARM, _nc_visbuf(file)));
248 if (NCURSES_SP_NAME(scr_init) (NCURSES_SP_ARGx file) == ERR) {
251 delwin(NewScreen(SP_PARM));
252 NewScreen(SP_PARM) = dupwin(curscr);
254 newscr = NewScreen(SP_PARM);
262 scr_set(const char *file)
264 return NCURSES_SP_NAME(scr_set) (CURRENT_SCREEN, file);