diff options
Diffstat (limited to 'usr/src/lib/libcurses/screen/wgetch.c')
| -rw-r--r-- | usr/src/lib/libcurses/screen/wgetch.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/usr/src/lib/libcurses/screen/wgetch.c b/usr/src/lib/libcurses/screen/wgetch.c new file mode 100644 index 0000000000..25a569522a --- /dev/null +++ b/usr/src/lib/libcurses/screen/wgetch.c @@ -0,0 +1,111 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License, Version 1.0 only + * (the "License"). You may not use this file except in compliance + * with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 1997 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +/* Copyright (c) 1988 AT&T */ +/* All Rights Reserved */ + +/* + * University Copyright- Copyright (c) 1982, 1986, 1988 + * The Regents of the University of California + * All Rights Reserved + * + * University Acknowledgment- Portions of this document are derived from + * software developed by the University of California, Berkeley, and its + * contributors. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +/*LINTLIBRARY*/ + +#include <sys/types.h> +#include "curses_inc.h" +#ifdef DEBUG +#include <ctype.h> +#endif /* DEBUG */ + +/* + * This routine reads in a character from the window. + * + * wgetch MUST return an int, not a char, because it can return + * things like ERR, meta characters, and function keys > 256. + */ + +int +wgetch(WINDOW *win) +{ + int inp; + bool weset = FALSE; + +#ifdef DEBUG + if (outf) { + fprintf(outf, "WGETCH: SP->fl_echoit = %c\n", + SP->fl_echoit ? 'T' : 'F'); + fprintf(outf, "_use_keypad %d, kp_state %d\n", + win->_use_keypad, SP->kp_state); + fprintf(outf, "file %x fd %d\n", SP->input_file, + fileno(SP->input_file)); + } +#endif /* DEBUG */ + + if (SP->fl_echoit && cur_term->_fl_rawmode == 0) { + (void) cbreak(); + weset++; + } + + /* Make sure we are in proper nodelay state and not */ + /* in halfdelay state */ + if (cur_term->_delay <= 0 && cur_term->_delay != win->_delay) + (void) ttimeout(win->_delay); + + if ((win->_flags & (_WINCHANGED | _WINMOVED)) && !(win->_flags & + _ISPAD)) + (void) wrefresh(win); + + if ((cur_term->_ungotten == 0) && (req_for_input)) { + (void) tputs(req_for_input, 1, _outch); + (void) fflush(SP->term_file); + } + inp = (int)tgetch((int)(win->_use_keypad ? 1 + win->_notimeout : 0)); + + /* echo the key out to the screen */ + if (SP->fl_echoit && (inp < 0200) && (inp >= 0) && !(win->_flags & + _ISPAD)) + (void) wechochar(win, (chtype) inp); + + /* + * Do nl() mapping. nl() affects both input and output. Since + * we turn off input mapping of CR->NL to not affect input + * virtualization, we do the mapping here in software. + */ + if (inp == '\r' && !SP->fl_nonl) + inp = '\n'; + + if (weset) + (void) nocbreak(); + + return (inp); +} |