mirror of
https://github.com/Aigor44/ncursesw-morphos.git
synced 2024-12-27 07:49:06 +08:00
3a0d9d27e0
+ quiet some pedantic gcc warnings. + modify _nc_wgetch() to check for a -1 in the fifo, e.g., after a SIGWINCH, and discard that value, to avoid confusing application (patch by Eygene Ryabinkin, FreeBSD bin/136223).
267 lines
7.3 KiB
C
267 lines
7.3 KiB
C
/****************************************************************************
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* Copyright (c) 1998-2008,2009 Free Software Foundation, Inc. *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a *
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* copy of this software and associated documentation files (the *
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* "Software"), to deal in the Software without restriction, including *
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* without limitation the rights to use, copy, modify, merge, publish, *
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* distribute, distribute with modifications, sublicense, and/or sell *
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* copies of the Software, and to permit persons to whom the Software is *
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* furnished to do so, subject to the following conditions: *
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* *
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* The above copyright notice and this permission notice shall be included *
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* in all copies or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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* *
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* Except as contained in this notice, the name(s) of the above copyright *
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* holders shall not be used in advertising or otherwise to promote the *
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* sale, use or other dealings in this Software without prior written *
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* authorization. *
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****************************************************************************/
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/****************************************************************************
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* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
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* and: Eric S. Raymond <esr@snark.thyrsus.com> *
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* and: Thomas E. Dickey 1996 on *
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* and: Juergen Pfeifer 2009 *
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****************************************************************************/
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#include <curses.priv.h>
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#ifndef CUR
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#define CUR SP_TERMTYPE
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#endif
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MODULE_ID("$Id: lib_screen.c,v 1.38 2009/10/24 22:08:55 tom Exp $")
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#define MAX_SIZE 0x3fff /* 16k is big enough for a window or pad */
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NCURSES_EXPORT(WINDOW *)
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NCURSES_SP_NAME(getwin) (NCURSES_SP_DCLx FILE *filep)
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{
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WINDOW tmp, *nwin;
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int n;
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T((T_CALLED("getwin(%p)"), (void *) filep));
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clearerr(filep);
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if (fread(&tmp, 1, sizeof(WINDOW), filep) < sizeof(WINDOW)
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|| ferror(filep)
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|| tmp._maxy == 0
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|| tmp._maxy > MAX_SIZE
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|| tmp._maxx == 0
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|| tmp._maxx > MAX_SIZE) {
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returnWin(0);
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}
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if (tmp._flags & _ISPAD) {
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nwin = NCURSES_SP_NAME(newpad) (NCURSES_SP_ARGx
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tmp._maxy + 1,
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tmp._maxx + 1);
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} else {
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nwin = NCURSES_SP_NAME(newwin) (NCURSES_SP_ARGx
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tmp._maxy + 1,
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tmp._maxx + 1, 0, 0);
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}
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/*
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* We deliberately do not restore the _parx, _pary, or _parent
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* fields, because the window hierarchy within which they
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* made sense is probably gone.
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*/
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if (nwin != 0) {
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size_t linesize = sizeof(NCURSES_CH_T) * (size_t) (tmp._maxx + 1);
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nwin->_curx = tmp._curx;
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nwin->_cury = tmp._cury;
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nwin->_maxy = tmp._maxy;
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nwin->_maxx = tmp._maxx;
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nwin->_begy = tmp._begy;
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nwin->_begx = tmp._begx;
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nwin->_yoffset = tmp._yoffset;
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nwin->_flags = tmp._flags & ~(_SUBWIN);
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WINDOW_ATTRS(nwin) = WINDOW_ATTRS(&tmp);
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nwin->_nc_bkgd = tmp._nc_bkgd;
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nwin->_notimeout = tmp._notimeout;
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nwin->_clear = tmp._clear;
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nwin->_leaveok = tmp._leaveok;
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nwin->_idlok = tmp._idlok;
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nwin->_idcok = tmp._idcok;
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nwin->_immed = tmp._immed;
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nwin->_scroll = tmp._scroll;
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nwin->_sync = tmp._sync;
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nwin->_use_keypad = tmp._use_keypad;
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nwin->_delay = tmp._delay;
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nwin->_regtop = tmp._regtop;
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nwin->_regbottom = tmp._regbottom;
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if (tmp._flags & _ISPAD)
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nwin->_pad = tmp._pad;
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for (n = 0; n <= nwin->_maxy; n++) {
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clearerr(filep);
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if (fread(nwin->_line[n].text, 1, linesize, filep) < linesize
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|| ferror(filep)) {
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delwin(nwin);
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returnWin(0);
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}
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}
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touchwin(nwin);
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}
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returnWin(nwin);
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}
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#if NCURSES_SP_FUNCS
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NCURSES_EXPORT(WINDOW *)
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getwin(FILE *filep)
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{
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return NCURSES_SP_NAME(getwin) (CURRENT_SCREEN, filep);
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}
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#endif
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NCURSES_EXPORT(int)
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putwin(WINDOW *win, FILE *filep)
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{
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int code = ERR;
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int n;
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T((T_CALLED("putwin(%p,%p)"), (void *) win, (void *) filep));
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if (win != 0) {
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size_t len = (size_t) (win->_maxx + 1);
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clearerr(filep);
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if (fwrite(win, sizeof(WINDOW), 1, filep) != 1
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|| ferror(filep))
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returnCode(code);
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for (n = 0; n <= win->_maxy; n++) {
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if (fwrite(win->_line[n].text,
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sizeof(NCURSES_CH_T), len, filep) != len
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|| ferror(filep)) {
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returnCode(code);
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}
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}
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code = OK;
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}
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returnCode(code);
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}
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NCURSES_EXPORT(int)
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NCURSES_SP_NAME(scr_restore) (NCURSES_SP_DCLx const char *file)
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{
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FILE *fp = 0;
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T((T_CALLED("scr_restore(%p,%s)"), (void *) SP_PARM, _nc_visbuf(file)));
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if (_nc_access(file, R_OK) < 0
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|| (fp = fopen(file, "rb")) == 0) {
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returnCode(ERR);
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} else {
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delwin(NewScreen(SP_PARM));
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NewScreen(SP_PARM) = getwin(fp);
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#if !USE_REENTRANT
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newscr = NewScreen(SP_PARM);
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#endif
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(void) fclose(fp);
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returnCode(OK);
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}
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}
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#if NCURSES_SP_FUNCS
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NCURSES_EXPORT(int)
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scr_restore(const char *file)
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{
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return NCURSES_SP_NAME(scr_restore) (CURRENT_SCREEN, file);
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}
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#endif
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NCURSES_EXPORT(int)
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scr_dump(const char *file)
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{
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FILE *fp = 0;
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T((T_CALLED("scr_dump(%s)"), _nc_visbuf(file)));
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if (_nc_access(file, W_OK) < 0
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|| (fp = fopen(file, "wb")) == 0) {
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returnCode(ERR);
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} else {
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(void) putwin(newscr, fp);
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(void) fclose(fp);
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returnCode(OK);
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}
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}
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NCURSES_EXPORT(int)
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NCURSES_SP_NAME(scr_init) (NCURSES_SP_DCLx const char *file)
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{
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FILE *fp = 0;
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int code = ERR;
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T((T_CALLED("scr_init(%p,%s)"), (void *) SP_PARM, _nc_visbuf(file)));
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if (SP_PARM != 0 &&
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#ifdef USE_TERM_DRIVER
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InfoOf(SP_PARM).caninit
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#else
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!(exit_ca_mode && non_rev_rmcup)
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#endif
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) {
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if (_nc_access(file, R_OK) >= 0
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&& (fp = fopen(file, "rb")) != 0) {
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delwin(CurScreen(SP_PARM));
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CurScreen(SP_PARM) = getwin(fp);
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#if !USE_REENTRANT
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curscr = CurScreen(SP_PARM);
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#endif
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(void) fclose(fp);
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code = OK;
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}
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}
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returnCode(code);
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}
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#if NCURSES_SP_FUNCS
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NCURSES_EXPORT(int)
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scr_init(const char *file)
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{
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return NCURSES_SP_NAME(scr_init) (CURRENT_SCREEN, file);
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}
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#endif
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NCURSES_EXPORT(int)
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NCURSES_SP_NAME(scr_set) (NCURSES_SP_DCLx const char *file)
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{
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T((T_CALLED("scr_set(%p,%s)"), (void *) SP_PARM, _nc_visbuf(file)));
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if (NCURSES_SP_NAME(scr_init) (NCURSES_SP_ARGx file) == ERR) {
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returnCode(ERR);
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} else {
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delwin(NewScreen(SP_PARM));
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NewScreen(SP_PARM) = dupwin(curscr);
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#if !USE_REENTRANT
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newscr = NewScreen(SP_PARM);
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#endif
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returnCode(OK);
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}
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}
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#if NCURSES_SP_FUNCS
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NCURSES_EXPORT(int)
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scr_set(const char *file)
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{
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return NCURSES_SP_NAME(scr_set) (CURRENT_SCREEN, file);
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}
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#endif
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