1 /****************************************************************************
2 * Copyright (c) 1998 Free Software Foundation, Inc. *
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: *
12 * The above copyright notice and this permission notice shall be included *
13 * in all copies or substantial portions of the Software. *
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. *
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 *
27 ****************************************************************************/
29 /****************************************************************************
30 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
31 * and: Eric S. Raymond <esr@snark.thyrsus.com> *
32 ****************************************************************************/
38 ** The routines to handle option setting.
42 #include <curses.priv.h>
44 #include <term.h> /* keypad_xmit, keypad_local, meta_on, meta_off */
45 /* cursor_visible,cursor_normal,cursor_invisible */
47 MODULE_ID("$Id: lib_options.c,v 1.29 1998/02/11 12:13:55 tom Exp $")
51 T((T_CALLED("has_ic()")));
52 returnCode((insert_character || parm_ich
53 || (enter_insert_mode && exit_insert_mode))
54 && (delete_character || parm_dch));
59 T((T_CALLED("has_il()")));
60 returnCode((insert_line || parm_insert_line)
61 && (delete_line || parm_delete_line));
64 int idlok(WINDOW *win, bool flag)
66 T((T_CALLED("idlok(%p,%d)"), win, flag));
69 _nc_idlok = win->_idlok = flag && (has_il() || change_scroll_region);
77 void idcok(WINDOW *win, bool flag)
79 T((T_CALLED("idcok(%p,%d)"), win, flag));
82 _nc_idcok = win->_idcok = flag && has_ic();
89 T((T_CALLED("halfdelay(%d)"), t));
99 int nodelay(WINDOW *win, bool flag)
101 T((T_CALLED("nodelay(%p,%d)"), win, flag));
106 else win->_delay = -1;
113 int notimeout(WINDOW *win, bool f)
115 T((T_CALLED("notimout(%p,%d)"), win, f));
125 int wtimeout(WINDOW *win, int delay)
127 T((T_CALLED("wtimeout(%p,%d)"), win, delay));
137 int keypad(WINDOW *win, bool flag)
139 T((T_CALLED("keypad(%p,%d)"), win, flag));
142 win->_use_keypad = flag;
143 returnCode(_nc_keypad(flag));
150 int meta(WINDOW *win GCC_UNUSED, bool flag)
152 /* Ok, we stay relaxed and don't signal an error if win is NULL */
153 T((T_CALLED("meta(%p,%d)"), win, flag));
155 SP->_use_meta = flag;
159 TPUTS_TRACE("meta_on");
162 else if (! flag && meta_off)
164 TPUTS_TRACE("meta_off");
170 /* curs_set() moved here to narrow the kernel interface */
172 int curs_set(int vis)
174 int cursor = SP->_cursor;
176 T((T_CALLED("curs_set(%d)"), vis));
178 if (vis < 0 || vis > 2)
188 TPUTS_TRACE("cursor_visible");
189 putp(cursor_visible);
197 TPUTS_TRACE("cursor_normal");
204 if (cursor_invisible)
206 TPUTS_TRACE("cursor_invisible");
207 putp(cursor_invisible);
214 (void) fflush(SP->_ofp);
216 returnCode(cursor==-1 ? 1 : cursor);
219 int typeahead(int fd)
221 T((T_CALLED("typeahead(%d)"), fd));
229 ** Return TRUE if the current terminal has the given key
234 static int has_key_internal(int keycode, struct tries *tp)
238 else if (tp->value == keycode)
241 return(has_key_internal(keycode, tp->child)
242 || has_key_internal(keycode, tp->sibling));
245 int has_key(int keycode)
247 T((T_CALLED("has_key(%d)"), keycode));
248 returnCode(has_key_internal(keycode, SP->_keytry));
254 ** Construct the try for the current terminal's keypad keys.
258 static void init_keytry(void)
262 #include <keys.tries>
267 /* The SP->_keytry value is initialized in newterm(), where the SP
268 * structure is created, because we can not tell where keypad() or
269 * mouse_activate() (which will call keyok()) are first called.
272 for (n = 0; n < SIZEOF(table); n++)
273 if (table[n].offset < STRCOUNT)
274 _nc_add_to_try(&(SP->_keytry),
275 CUR Strings[table[n].offset],
279 /* Turn the keypad on/off
281 * Note: we flush the output because changing this mode causes some terminals
282 * to emit different escape sequences for cursor and keypad keys. If we don't
283 * flush, then the next wgetch may get the escape sequence that corresponds to
284 * the terminal state _before_ switching modes.
286 int _nc_keypad(bool flag)
288 if (flag && keypad_xmit)
290 TPUTS_TRACE("keypad_xmit");
292 (void) fflush(SP->_ofp);
294 else if (! flag && keypad_local)
296 TPUTS_TRACE("keypad_local");
298 (void) fflush(SP->_ofp);