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author | Rong-En Fan <rafan@FreeBSD.org> | 2008-11-09 09:06:04 +0000 |
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committer | Rong-En Fan <rafan@FreeBSD.org> | 2008-11-09 09:06:04 +0000 |
commit | a388f199193767bacbb38b172ab89cb84369736c (patch) | |
tree | a1816f5667d2280b970ca44e407bac8cc4496c0a /ncurses/base/lib_newterm.c | |
parent | aa59d4d4c5dda7e1c6f9dc0cc6edc58992a525c7 (diff) | |
download | src-a388f199193767bacbb38b172ab89cb84369736c.tar.gz src-a388f199193767bacbb38b172ab89cb84369736c.zip |
- Flatten the vendor area
Notes
Notes:
svn path=/vendor/ncurses/dist/; revision=184786
Diffstat (limited to 'ncurses/base/lib_newterm.c')
-rw-r--r-- | ncurses/base/lib_newterm.c | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/ncurses/base/lib_newterm.c b/ncurses/base/lib_newterm.c new file mode 100644 index 000000000000..3620a3fdbf2b --- /dev/null +++ b/ncurses/base/lib_newterm.c @@ -0,0 +1,217 @@ +/**************************************************************************** + * Copyright (c) 1998-2007,2008 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 * + ****************************************************************************/ + +/* +** lib_newterm.c +** +** The newterm() function. +** +*/ + +#include <curses.priv.h> + +#if SVR4_TERMIO && !defined(_POSIX_SOURCE) +#define _POSIX_SOURCE +#endif + +#include <term.h> /* clear_screen, cup & friends, cur_term */ +#include <tic.h> + +MODULE_ID("$Id: lib_newterm.c,v 1.69 2008/04/12 18:15:04 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 NCURSES_INLINE int +_nc_initscr(void) +{ + int result = ERR; + + /* for extended XPG4 conformance requires cbreak() at this point */ + /* (SVr4 curses does this anyway) */ + if (cbreak() == OK) { + TTY buf; + + buf = cur_term->Nttyb; +#ifdef TERMIOS + buf.c_lflag &= ~(ECHO | ECHONL); + buf.c_iflag &= ~(ICRNL | INLCR | IGNCR); + buf.c_oflag &= ~(ONLCR); +#elif HAVE_SGTTY_H + buf.sg_flags &= ~(ECHO | CRMOD); +#else + memset(&buf, 0, sizeof(buf)); +#endif + if ((result = _nc_set_tty_mode(&buf)) == OK) + cur_term->Nttyb = buf; + } + return result; +} + +/* + * 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. + */ +NCURSES_EXPORT(void) +filter(void) +{ + START_TRACE(); + T((T_CALLED("filter"))); + _nc_prescreen.filter_mode = TRUE; + returnVoid; +} + +#if NCURSES_EXT_FUNCS +/* + * An extension, allowing the application to open a new screen without + * requiring it to also be filtered. + */ +NCURSES_EXPORT(void) +nofilter(void) +{ + START_TRACE(); + T((T_CALLED("nofilter"))); + _nc_prescreen.filter_mode = FALSE; + returnVoid; +} +#endif + +NCURSES_EXPORT(SCREEN *) +newterm(NCURSES_CONST char *name, FILE *ofp, FILE *ifp) +{ + int value; + int errret; + SCREEN *current; + SCREEN *result = 0; + + START_TRACE(); + T((T_CALLED("newterm(\"%s\",%p,%p)"), name, ofp, ifp)); + + _nc_lock_global(set_SP); + /* this loads the capability entry, then sets LINES and COLS */ + if (setupterm(name, fileno(ofp), &errret) != ERR) { + int slk_format = _nc_globals.slk_format; + + /* + * This actually allocates the screen structure, and saves the original + * terminal settings. + */ + current = SP; + _nc_set_screen(0); + + /* allow user to set maximum escape delay from the environment */ + if ((value = _nc_getenv_num("ESCDELAY")) >= 0) { + set_escdelay(value); + } + + if (_nc_setupscreen(LINES, + COLS, + ofp, + _nc_prescreen.filter_mode, + slk_format) == ERR) { + _nc_set_screen(current); + result = 0; + } else { + /* 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); + 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); + + result = SP; + } + } + _nc_unlock_global(set_SP); + returnSP(result); +} |