1 /****************************************************************************
2 * Copyright (c) 1998-2006,2008 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 *
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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 *
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21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
23 * Except as contained in this notice, the name(s) of the above copyright *
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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 * and: Thomas E. Dickey 1996-on *
33 ****************************************************************************/
38 ** The routines to handle option setting.
42 #include <curses.priv.h>
46 MODULE_ID("$Id: lib_options.c,v 1.58 2008/08/16 21:20:48 Werner.Fink Exp $")
48 static int _nc_curs_set(SCREEN *, int);
49 static int _nc_meta(SCREEN *, bool);
52 idlok(WINDOW *win, bool flag)
54 T((T_CALLED("idlok(%p,%d)"), win, flag));
57 _nc_idlok = win->_idlok = (flag && (has_il() || change_scroll_region));
64 idcok(WINDOW *win, bool flag)
66 T((T_CALLED("idcok(%p,%d)"), win, flag));
69 _nc_idcok = win->_idcok = (flag && has_ic());
77 T((T_CALLED("halfdelay(%d)"), t));
79 if (t < 1 || t > 255 || SP == 0)
88 nodelay(WINDOW *win, bool flag)
90 T((T_CALLED("nodelay(%p,%d)"), win, flag));
103 notimeout(WINDOW *win, bool f)
105 T((T_CALLED("notimeout(%p,%d)"), win, f));
115 wtimeout(WINDOW *win, int delay)
117 T((T_CALLED("wtimeout(%p,%d)"), win, delay));
126 keypad(WINDOW *win, bool flag)
128 T((T_CALLED("keypad(%p,%d)"), win, flag));
131 win->_use_keypad = flag;
132 returnCode(_nc_keypad(SP, flag));
138 meta(WINDOW *win GCC_UNUSED, bool flag)
142 /* Ok, we stay relaxed and don't signal an error if win is NULL */
143 T((T_CALLED("meta(%p,%d)"), win, flag));
144 result = _nc_meta(SP, flag);
148 /* curs_set() moved here to narrow the kernel interface */
155 T((T_CALLED("curs_set(%d)"), vis));
156 result = _nc_curs_set(SP, vis);
163 T((T_CALLED("typeahead(%d)"), fd));
175 ** Return TRUE if the current terminal has the given key
179 #if NCURSES_EXT_FUNCS
181 has_key_internal(int keycode, TRIES * tp)
185 else if (tp->value == keycode)
188 return (has_key_internal(keycode, tp->child)
189 || has_key_internal(keycode, tp->sibling));
195 T((T_CALLED("has_key(%d)"), keycode));
196 returnCode(SP != 0 ? has_key_internal(keycode, SP->_keytry) : FALSE);
198 #endif /* NCURSES_EXT_FUNCS */
201 * Internal entrypoints use SCREEN* parameter to obtain capabilities rather
205 #define CUR (sp->_term)->type.
208 _nc_putp(const char *name GCC_UNUSED, const char *value)
220 _nc_putp_flush(const char *name, const char *value)
222 int rc = _nc_putp(name, value);
229 /* Turn the keypad on/off
231 * Note: we flush the output because changing this mode causes some terminals
232 * to emit different escape sequences for cursor and keypad keys. If we don't
233 * flush, then the next wgetch may get the escape sequence that corresponds to
234 * the terminal state _before_ switching modes.
237 _nc_keypad(SCREEN *sp, bool flag)
244 * We might have this situation in a multithreaded application that
245 * has wgetch() reading in more than one thread. putp() and below
246 * may use SP explicitly.
248 if (_nc_use_pthreads && sp != SP) {
251 /* cannot use use_screen(), since that is not in tinfo library */
252 _nc_lock_global(curses);
255 rc = _nc_keypad(sp, flag);
256 _nc_set_screen(save_sp);
257 _nc_unlock_global(curses);
262 (void) _nc_putp_flush("keypad_xmit", keypad_xmit);
263 } else if (!flag && keypad_local) {
264 (void) _nc_putp_flush("keypad_local", keypad_local);
267 if (flag && !sp->_tried) {
271 sp->_keypad_on = flag;
279 _nc_curs_set(SCREEN *sp, int vis)
283 T((T_CALLED("curs_set(%d)"), vis));
284 if (sp != 0 && vis >= 0 && vis <= 2) {
285 int cursor = sp->_cursor;
292 result = _nc_putp_flush("cursor_visible", cursor_visible);
295 result = _nc_putp_flush("cursor_normal", cursor_normal);
298 result = _nc_putp_flush("cursor_invisible", cursor_invisible);
302 result = (cursor == -1 ? 1 : cursor);
310 _nc_meta(SCREEN *sp, bool flag)
314 /* Ok, we stay relaxed and don't signal an error if win is NULL */
317 SP->_use_meta = flag;
320 _nc_putp("meta_on", meta_on);
322 _nc_putp("meta_off", meta_off);