ncurses/tinfo/lib_ttyflags.c

   1 /****************************************************************************
   2  * Copyright (c) 1998 Free Software Foundation, Inc.                        *
   3  *                                                                          *
   4  * Permission is hereby granted, free of charge, to any person obtaining a  *
   5  * copy of this software and associated documentation files (the            *
   6  * "Software"), to deal in the Software without restriction, including      *
   7  * without limitation the rights to use, copy, modify, merge, publish,      *
   8  * distribute, distribute with modifications, sublicense, and/or sell       *
   9  * copies of the Software, and to permit persons to whom the Software is    *
  10  * furnished to do so, subject to the following conditions:                 *
  11  *                                                                          *
  12  * The above copyright notice and this permission notice shall be included  *
  13  * in all copies or substantial portions of the Software.                   *
  14  *                                                                          *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
  16  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
  18  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
  21  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
  22  *                                                                          *
  23  * Except as contained in this notice, the name(s) of the above copyright   *
  24  * holders shall not be used in advertising or otherwise to promote the     *
  25  * sale, use or other dealings in this Software without prior written       *
  26  * authorization.                                                           *
  27  ****************************************************************************/
  28
  29 /*
  30  *              def_prog_mode()
  31  *              def_shell_mode()
  32  *              reset_prog_mode()
  33  *              reset_shell_mode()
  34  *              savetty()
  35  *              resetty()
  36  */
  37
  38 #include <curses.priv.h>
  39 #include <term.h>       /* cur_term */
  40
  41 MODULE_ID("$Id: lib_ttyflags.c,v 1.3 1999/10/22 21:38:55 tom Exp $")
  42
  43 #undef tabs
  44
  45 #ifdef TAB3
  46 # define tabs TAB3
  47 #else
  48 # ifdef XTABS
  49 #  define tabs XTABS
  50 # else
  51 #  ifdef OXTABS
  52 #   define tabs OXTABS
  53 #  else
  54 #   define tabs 0
  55 #  endif
  56 # endif
  57 #endif
  58
  59 int _nc_get_tty_mode(TTY *buf)
  60 {
  61         if (cur_term == 0
  62          || GET_TTY(cur_term->Filedes, buf) != 0)
  63                 return(ERR);
  64         TR(TRACE_BITS,("_nc_get_tty_mode: %s", _nc_tracebits()));
  65         return (OK);
  66 }
  67
  68 int _nc_set_tty_mode(TTY *buf)
  69 {
  70         if (cur_term == 0
  71          || SET_TTY(cur_term->Filedes, buf) != 0)
  72                 return(ERR);
  73         TR(TRACE_BITS,("_nc_set_tty_mode: %s", _nc_tracebits()));
  74         return (OK);
  75 }
  76
  77 int def_shell_mode(void)
  78 {
  79         T((T_CALLED("def_shell_mode()")));
  80
  81         /*
  82          * Turn off the XTABS bit in the tty structure if it was on.  If XTABS
  83          * was on, remove the tab and backtab capabilities.
  84          */
  85
  86         if (_nc_get_tty_mode(&cur_term->Ottyb) != OK)
  87                 returnCode(ERR);
  88 #ifdef TERMIOS
  89         if (cur_term->Ottyb.c_oflag & tabs)
  90                 tab = back_tab = NULL;
  91 #else
  92         if (cur_term->Ottyb.sg_flags & XTABS)
  93                 tab = back_tab = NULL;
  94 #endif
  95         returnCode(OK);
  96 }
  97
  98 int def_prog_mode(void)
  99 {
 100         T((T_CALLED("def_prog_mode()")));
 101
 102         if (_nc_get_tty_mode(&cur_term->Nttyb) != OK)
 103                 returnCode(ERR);
 104 #ifdef TERMIOS
 105         cur_term->Nttyb.c_oflag &= ~tabs;
 106 #else
 107         cur_term->Nttyb.sg_flags &= ~XTABS;
 108 #endif
 109         returnCode(OK);
 110 }
 111
 112 int reset_prog_mode(void)
 113 {
 114         T((T_CALLED("reset_prog_mode()")));
 115
 116         if (cur_term != 0) {
 117                 _nc_set_tty_mode(&cur_term->Nttyb);
 118                 if (SP) {
 119                         if (stdscr && stdscr->_use_keypad)
 120                                 _nc_keypad(TRUE);
 121                         NC_BUFFERED(TRUE);
 122                 }
 123                 returnCode(OK);
 124         }
 125         returnCode(ERR);
 126 }
 127
 128 int reset_shell_mode(void)
 129 {
 130         T((T_CALLED("reset_shell_mode()")));
 131
 132         if (cur_term != 0) {
 133                 if (SP)
 134                 {
 135                         _nc_keypad(FALSE);
 136                         _nc_flush();
 137                         NC_BUFFERED(FALSE);
 138                 }
 139                 returnCode(_nc_set_tty_mode(&cur_term->Ottyb));
 140         }
 141         returnCode(ERR);
 142 }
 143
 144 /*
 145 **      savetty()  and  resetty()
 146 **
 147 */
 148
 149 static TTY   buf;
 150
 151 int savetty(void)
 152 {
 153         T((T_CALLED("savetty()")));
 154
 155         returnCode(_nc_get_tty_mode(&buf));
 156 }
 157
 158 int resetty(void)
 159 {
 160         T((T_CALLED("resetty()")));
 161
 162         returnCode(_nc_set_tty_mode(&buf));
 163 }