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authorPeter Wemm <peter@FreeBSD.org>1999-08-24 01:06:48 +0000
committerPeter Wemm <peter@FreeBSD.org>1999-08-24 01:06:48 +0000
commit0e3d540892016a47f6a68ec9ba2879d35ce5f7c2 (patch)
treead214c5b2c8142ad6dc6d2ce3a9c83e6317d7f77 /contrib/ncurses/ncurses/base/lib_newterm.c
downloadsrc-0e3d540892016a47f6a68ec9ba2879d35ce5f7c2.tar.gz
src-0e3d540892016a47f6a68ec9ba2879d35ce5f7c2.zip
Import unmodified (but trimmed) ncurses 5.0 prerelease 990821.vendor/ncurses/5.0-19990821
This contains the full eti (panel, form, menu) extensions. bmake glue to follow. Obtained from: ftp://ftp.clark.net/pub/dickey/ncurses
Notes
Notes: svn path=/vendor/ncurses/dist/; revision=50276 svn path=/vendor/ncurses/5.0-19990821/; revision=50278; tag=vendor/ncurses/5.0-19990821
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+/****************************************************************************
+ * Copyright (c) 1998 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> *
+ ****************************************************************************/
+
+
+
+/*
+** lib_newterm.c
+**
+** The newterm() function.
+**
+*/
+
+#include <curses.priv.h>
+
+#if defined(SVR4_TERMIO) && !defined(_POSIX_SOURCE)
+#define _POSIX_SOURCE
+#endif
+
+#include <term.h> /* clear_screen, cup & friends, cur_term */
+
+MODULE_ID("$Id: lib_newterm.c,v 1.41 1999/07/24 20:07:48 tom Exp $")
+
+#ifndef ONLCR /* Allows compilation under the QNX 4.2 OS */
+#define ONLCR 0
+#endif
+
+/*
+ * SVr4/XSI Curses specify that hardware echo is turned off in initscr, and not
+ * restored during the curses session. The library simulates echo in software.
+ * (The behavior is unspecified if the application enables hardware echo).
+ *
+ * The newterm function also initializes terminal settings, and since initscr
+ * is supposed to behave as if it calls newterm, we do it here.
+ */
+static inline int _nc_initscr(void)
+{
+ /* for extended XPG4 conformance requires cbreak() at this point */
+ /* (SVr4 curses does this anyway) */
+ cbreak();
+
+#ifdef TERMIOS
+ cur_term->Nttyb.c_lflag &= ~(ECHO|ECHONL);
+ cur_term->Nttyb.c_iflag &= ~(ICRNL|INLCR|IGNCR);
+ cur_term->Nttyb.c_oflag &= ~(ONLCR);
+#else
+ cur_term->Nttyb.sg_flags &= ~(ECHO|CRMOD);
+#endif
+ return _nc_set_tty_mode(&cur_term->Nttyb);
+}
+
+/*
+ * filter() has to be called before either initscr() or newterm(), so there is
+ * apparently no way to make this flag apply to some terminals and not others,
+ * aside from possibly delaying a filter() call until some terminals have been
+ * initialized.
+ */
+static int filter_mode = FALSE;
+
+void filter(void)
+{
+ filter_mode = TRUE;
+}
+
+SCREEN * newterm(NCURSES_CONST char *name, FILE *ofp, FILE *ifp)
+{
+int errret;
+int slk_format = _nc_slk_format;
+SCREEN* current;
+#ifdef TRACE
+int t = _nc_getenv_num("NCURSES_TRACE");
+
+ if (t >= 0)
+ trace(t);
+#endif
+
+ T((T_CALLED("newterm(\"%s\",%p,%p)"), name, ofp, ifp));
+
+ /* this loads the capability entry, then sets LINES and COLS */
+ if (setupterm(name, fileno(ofp), &errret) == ERR)
+ return 0;
+
+ /* implement filter mode */
+ if (filter_mode) {
+ LINES = 1;
+
+ if (init_tabs != -1)
+ TABSIZE = init_tabs;
+ else
+ TABSIZE = 8;
+
+ T(("TABSIZE = %d", TABSIZE));
+
+ clear_screen = 0;
+ cursor_down = parm_down_cursor = 0;
+ cursor_address = 0;
+ cursor_up = parm_up_cursor = 0;
+ row_address = 0;
+
+ cursor_home = carriage_return;
+ }
+
+ /* If we must simulate soft labels, grab off the line to be used.
+ We assume that we must simulate, if it is none of the standard
+ formats (4-4 or 3-2-3) for which there may be some hardware
+ support. */
+ if (num_labels <= 0 || !SLK_STDFMT(slk_format))
+ if (slk_format)
+ {
+ if (ERR==_nc_ripoffline(-SLK_LINES(slk_format),
+ _nc_slk_initialize))
+ return 0;
+ }
+ /* this actually allocates the screen structure, and saves the
+ * original terminal settings.
+ */
+ current = SP;
+ _nc_set_screen(0);
+ if (_nc_setupscreen(LINES, COLS, ofp) == ERR) {
+ _nc_set_screen(current);
+ return 0;
+ }
+
+ /* if the terminal type has real soft labels, set those up */
+ if (slk_format && num_labels > 0 && SLK_STDFMT(slk_format))
+ _nc_slk_initialize(stdscr, COLS);
+
+ SP->_ifd = fileno(ifp);
+ SP->_checkfd = fileno(ifp);
+ typeahead(fileno(ifp));
+#ifdef TERMIOS
+ SP->_use_meta = ((cur_term->Ottyb.c_cflag & CSIZE) == CS8 &&
+ !(cur_term->Ottyb.c_iflag & ISTRIP));
+#else
+ SP->_use_meta = FALSE;
+#endif
+ SP->_endwin = FALSE;
+
+ /* Check whether we can optimize scrolling under dumb terminals in case
+ * we do not have any of these capabilities, scrolling optimization
+ * will be useless.
+ */
+ SP->_scrolling = ((scroll_forward && scroll_reverse) ||
+ ((parm_rindex || parm_insert_line || insert_line) &&
+ (parm_index || parm_delete_line || delete_line)));
+
+ baudrate(); /* sets a field in the SP structure */
+
+ SP->_keytry = 0;
+
+ /*
+ * Check for mismatched graphic-rendition capabilities. Most SVr4
+ * terminfo trees contain entries that have rmul or rmso equated to
+ * sgr0 (Solaris curses copes with those entries). We do this only for
+ * curses, since many termcap applications assume that smso/rmso and
+ * smul/rmul are paired, and will not function properly if we remove
+ * rmso or rmul. Curses applications shouldn't be looking at this
+ * detail.
+ */
+#define SGR0_TEST(mode) (mode != 0) && (exit_attribute_mode == 0 || strcmp(mode, exit_attribute_mode))
+ SP->_use_rmso = SGR0_TEST(exit_standout_mode);
+ SP->_use_rmul = SGR0_TEST(exit_underline_mode);
+
+ /* compute movement costs so we can do better move optimization */
+ _nc_mvcur_init();
+
+ /* initialize terminal to a sane state */
+ _nc_screen_init();
+
+ /* Initialize the terminal line settings. */
+ _nc_initscr();
+
+ _nc_signal_handler(TRUE);
+
+ T((T_RETURN("%p"), SP));
+ return(SP);
+}