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-rw-r--r--ncurses/base/lib_screen.c214
1 files changed, 214 insertions, 0 deletions
diff --git a/ncurses/base/lib_screen.c b/ncurses/base/lib_screen.c
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index 000000000000..e6aecbdaab47
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+++ b/ncurses/base/lib_screen.c
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+/****************************************************************************
+ * Copyright (c) 1998-2006,2007 Free Software Foundation, Inc. *
+ * *
+ * Permission is hereby granted, free of charge, to any person obtaining a *
+ * copy of this software and associated documentation files (the *
+ * "Software"), to deal in the Software without restriction, including *
+ * without limitation the rights to use, copy, modify, merge, publish, *
+ * distribute, distribute with modifications, sublicense, and/or sell *
+ * copies of the Software, and to permit persons to whom the Software is *
+ * furnished to do so, subject to the following conditions: *
+ * *
+ * The above copyright notice and this permission notice shall be included *
+ * in all copies or substantial portions of the Software. *
+ * *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
+ * *
+ * Except as contained in this notice, the name(s) of the above copyright *
+ * holders shall not be used in advertising or otherwise to promote the *
+ * sale, use or other dealings in this Software without prior written *
+ * authorization. *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
+ * and: Eric S. Raymond <esr@snark.thyrsus.com> *
+ * and: Thomas E. Dickey 1996 on *
+ ****************************************************************************/
+
+#include <curses.priv.h>
+
+MODULE_ID("$Id: lib_screen.c,v 1.30 2007/03/10 23:20:41 tom Exp $")
+
+NCURSES_EXPORT(WINDOW *)
+getwin(FILE *filep)
+{
+ WINDOW tmp, *nwin;
+ int n;
+
+ T((T_CALLED("getwin(%p)"), filep));
+
+ clearerr(filep);
+ (void) fread(&tmp, sizeof(WINDOW), 1, filep);
+ if (ferror(filep))
+ returnWin(0);
+
+ if (tmp._flags & _ISPAD) {
+ nwin = newpad(tmp._maxy + 1, tmp._maxx + 1);
+ } else {
+ nwin = newwin(tmp._maxy + 1, tmp._maxx + 1, 0, 0);
+ }
+
+ /*
+ * We deliberately do not restore the _parx, _pary, or _parent
+ * fields, because the window hierarchy within which they
+ * made sense is probably gone.
+ */
+ if (nwin != 0) {
+ nwin->_curx = tmp._curx;
+ nwin->_cury = tmp._cury;
+ nwin->_maxy = tmp._maxy;
+ nwin->_maxx = tmp._maxx;
+ nwin->_begy = tmp._begy;
+ nwin->_begx = tmp._begx;
+ nwin->_yoffset = tmp._yoffset;
+ nwin->_flags = tmp._flags & ~(_SUBWIN);
+
+ WINDOW_ATTRS(nwin) = WINDOW_ATTRS(&tmp);
+ nwin->_nc_bkgd = tmp._nc_bkgd;
+
+ nwin->_notimeout = tmp._notimeout;
+ nwin->_clear = tmp._clear;
+ nwin->_leaveok = tmp._leaveok;
+ nwin->_idlok = tmp._idlok;
+ nwin->_idcok = tmp._idcok;
+ nwin->_immed = tmp._immed;
+ nwin->_scroll = tmp._scroll;
+ nwin->_sync = tmp._sync;
+ nwin->_use_keypad = tmp._use_keypad;
+ nwin->_delay = tmp._delay;
+
+ nwin->_regtop = tmp._regtop;
+ nwin->_regbottom = tmp._regbottom;
+
+ if (tmp._flags & _ISPAD)
+ nwin->_pad = tmp._pad;
+
+ for (n = 0; n <= nwin->_maxy; n++) {
+ clearerr(filep);
+ (void) fread(nwin->_line[n].text,
+ sizeof(NCURSES_CH_T),
+ (size_t) (nwin->_maxx + 1),
+ filep);
+ if (ferror(filep)) {
+ delwin(nwin);
+ returnWin(0);
+ }
+ }
+ touchwin(nwin);
+ }
+ returnWin(nwin);
+}
+
+NCURSES_EXPORT(int)
+putwin(WINDOW *win, FILE *filep)
+{
+ int code = ERR;
+ int n;
+
+ T((T_CALLED("putwin(%p,%p)"), win, filep));
+
+ if (win != 0) {
+ size_t len = (win->_maxx + 1);
+
+ clearerr(filep);
+ if (fwrite(win, sizeof(WINDOW), 1, filep) != 1
+ || ferror(filep))
+ returnCode(code);
+
+ for (n = 0; n <= win->_maxy; n++) {
+ if (fwrite(win->_line[n].text,
+ sizeof(NCURSES_CH_T), len, filep) != len
+ || ferror(filep)) {
+ returnCode(code);
+ }
+ }
+ code = OK;
+ }
+ returnCode(code);
+}
+
+NCURSES_EXPORT(int)
+scr_restore(const char *file)
+{
+ FILE *fp = 0;
+
+ T((T_CALLED("scr_restore(%s)"), _nc_visbuf(file)));
+
+ if (_nc_access(file, R_OK) < 0
+ || (fp = fopen(file, "rb")) == 0) {
+ returnCode(ERR);
+ } else {
+ delwin(newscr);
+ SP->_newscr = getwin(fp);
+#if !USE_REENTRANT
+ newscr = SP->_newscr;
+#endif
+ (void) fclose(fp);
+ returnCode(OK);
+ }
+}
+
+NCURSES_EXPORT(int)
+scr_dump(const char *file)
+{
+ FILE *fp = 0;
+
+ T((T_CALLED("scr_dump(%s)"), _nc_visbuf(file)));
+
+ if (_nc_access(file, W_OK) < 0
+ || (fp = fopen(file, "wb")) == 0) {
+ returnCode(ERR);
+ } else {
+ (void) putwin(newscr, fp);
+ (void) fclose(fp);
+ returnCode(OK);
+ }
+}
+
+NCURSES_EXPORT(int)
+scr_init(const char *file)
+{
+ FILE *fp = 0;
+
+ T((T_CALLED("scr_init(%s)"), _nc_visbuf(file)));
+
+ if (exit_ca_mode && non_rev_rmcup)
+ returnCode(ERR);
+
+ if (_nc_access(file, R_OK) < 0
+ || (fp = fopen(file, "rb")) == 0) {
+ returnCode(ERR);
+ } else {
+ delwin(curscr);
+ SP->_curscr = getwin(fp);
+#if !USE_REENTRANT
+ curscr = SP->_curscr;
+#endif
+ (void) fclose(fp);
+ returnCode(OK);
+ }
+}
+
+NCURSES_EXPORT(int)
+scr_set(const char *file)
+{
+ T((T_CALLED("scr_set(%s)"), _nc_visbuf(file)));
+
+ if (scr_init(file) == ERR) {
+ returnCode(ERR);
+ } else {
+ delwin(newscr);
+ SP->_newscr = dupwin(curscr);
+#if !USE_REENTRANT
+ newscr = SP->_newscr;
+#endif
+ returnCode(OK);
+ }
+}