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 *
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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 1.36 1999/10/22 21:38:57 tom Exp $")
49 int idlok(WINDOW *win, bool flag)
51 T((T_CALLED("idlok(%p,%d)"), win, flag));
54 _nc_idlok = win->_idlok = flag && (has_il() || change_scroll_region);
62 void idcok(WINDOW *win, bool flag)
64 T((T_CALLED("idcok(%p,%d)"), win, flag));
67 _nc_idcok = win->_idcok = flag && has_ic();
74 T((T_CALLED("halfdelay(%d)"), t));
84 int nodelay(WINDOW *win, bool flag)
86 T((T_CALLED("nodelay(%p,%d)"), win, flag));
91 else win->_delay = -1;
98 int notimeout(WINDOW *win, bool f)
100 T((T_CALLED("notimout(%p,%d)"), win, f));
110 void wtimeout(WINDOW *win, int delay)
112 T((T_CALLED("wtimeout(%p,%d)"), win, delay));
119 int keypad(WINDOW *win, bool flag)
121 T((T_CALLED("keypad(%p,%d)"), win, flag));
124 win->_use_keypad = flag;
125 returnCode(_nc_keypad(flag));
132 int meta(WINDOW *win GCC_UNUSED, bool flag)
134 /* Ok, we stay relaxed and don't signal an error if win is NULL */
135 T((T_CALLED("meta(%p,%d)"), win, flag));
137 SP->_use_meta = flag;
141 TPUTS_TRACE("meta_on");
144 else if (! flag && meta_off)
146 TPUTS_TRACE("meta_off");
152 /* curs_set() moved here to narrow the kernel interface */
154 int curs_set(int vis)
156 int cursor = SP->_cursor;
158 T((T_CALLED("curs_set(%d)"), vis));
160 if (vis < 0 || vis > 2)
170 TPUTS_TRACE("cursor_visible");
171 putp(cursor_visible);
179 TPUTS_TRACE("cursor_normal");
186 if (cursor_invisible)
188 TPUTS_TRACE("cursor_invisible");
189 putp(cursor_invisible);
198 returnCode(cursor==-1 ? 1 : cursor);
201 int typeahead(int fd)
203 T((T_CALLED("typeahead(%d)"), fd));
211 ** Return TRUE if the current terminal has the given key
215 #ifdef NCURSES_EXT_FUNCS
216 static int has_key_internal(int keycode, struct tries *tp)
220 else if (tp->value == keycode)
223 return(has_key_internal(keycode, tp->child)
224 || has_key_internal(keycode, tp->sibling));
227 int has_key(int keycode)
229 T((T_CALLED("has_key(%d)"), keycode));
230 returnCode(has_key_internal(keycode, SP->_keytry));
232 #endif /* NCURSES_EXT_FUNCS */
234 /* Turn the keypad on/off
236 * Note: we flush the output because changing this mode causes some terminals
237 * to emit different escape sequences for cursor and keypad keys. If we don't
238 * flush, then the next wgetch may get the escape sequence that corresponds to
239 * the terminal state _before_ switching modes.
241 int _nc_keypad(bool flag)
243 if (flag && keypad_xmit)
245 TPUTS_TRACE("keypad_xmit");
249 else if (! flag && keypad_local)
251 TPUTS_TRACE("keypad_local");
256 if (flag && !SP->_tried) {