1 /****************************************************************************
2 * Copyright (c) 1998-2008,2009 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, *
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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 * and: Juergen Pfeifer 2009 *
34 ****************************************************************************/
39 ** The routines to handle option setting.
43 #include <curses.priv.h>
48 #define CUR SP_TERMTYPE
51 MODULE_ID("$Id: lib_options.c,v 1.64 2009/05/23 23:58:07 tom Exp $")
53 static int _nc_meta(SCREEN *, bool);
56 idlok(WINDOW *win, bool flag)
59 SCREEN *sp = CURRENT_SCREEN;
61 T((T_CALLED("idlok(%p,%d)"), win, flag));
64 _nc_idlok = win->_idlok = (flag && (has_il() || change_scroll_region));
71 idcok(WINDOW *win, bool flag)
73 T((T_CALLED("idcok(%p,%d)"), win, flag));
76 _nc_idcok = win->_idcok = (flag && has_ic());
82 NCURSES_SP_NAME(halfdelay) (NCURSES_SP_DCLx int t)
84 T((T_CALLED("halfdelay(%d)"), t));
86 if (t < 1 || t > 255 || SP_PARM == 0)
90 SP_PARM->_cbreak = t + 1;
98 return NCURSES_SP_NAME(halfdelay) (CURRENT_SCREEN, t);
103 nodelay(WINDOW *win, bool flag)
105 T((T_CALLED("nodelay(%p,%d)"), win, flag));
118 notimeout(WINDOW *win, bool f)
120 T((T_CALLED("notimeout(%p,%d)"), win, f));
130 wtimeout(WINDOW *win, int delay)
132 T((T_CALLED("wtimeout(%p,%d)"), win, delay));
141 keypad(WINDOW *win, bool flag)
143 T((T_CALLED("keypad(%p,%d)"), win, flag));
146 win->_use_keypad = flag;
147 returnCode(_nc_keypad(SP, flag));
153 meta(WINDOW *win GCC_UNUSED, bool flag)
157 /* Ok, we stay relaxed and don't signal an error if win is NULL */
158 T((T_CALLED("meta(%p,%d)"), win, flag));
159 result = _nc_meta(SP, flag);
163 /* curs_set() moved here to narrow the kernel interface */
166 NCURSES_SP_NAME(curs_set) (NCURSES_SP_DCLx int vis)
170 T((T_CALLED("curs_set(%p,%d)"), SP_PARM, vis));
171 if (SP_PARM != 0 && vis >= 0 && vis <= 2) {
172 int cursor = SP_PARM->_cursor;
179 result = _nc_putp_flush("cursor_visible", cursor_visible);
182 result = _nc_putp_flush("cursor_normal", cursor_normal);
185 result = _nc_putp_flush("cursor_invisible", cursor_invisible);
189 result = (cursor == -1 ? 1 : cursor);
190 SP_PARM->_cursor = vis;
200 return (NCURSES_SP_NAME(curs_set) (CURRENT_SCREEN, vis));
205 NCURSES_SP_NAME(typeahead) (NCURSES_SP_DCLx int fd)
207 T((T_CALLED("typeahead(%d)"), fd));
209 SP_PARM->_checkfd = fd;
220 return NCURSES_SP_NAME(typeahead) (CURRENT_SCREEN, fd);
227 ** Return TRUE if the current terminal has the given key
231 #if NCURSES_EXT_FUNCS
233 has_key_internal(int keycode, TRIES * tp)
237 else if (tp->value == keycode)
240 return (has_key_internal(keycode, tp->child)
241 || has_key_internal(keycode, tp->sibling));
245 NCURSES_SP_NAME(has_key) (NCURSES_SP_DCLx int keycode)
247 T((T_CALLED("has_key(%p,%d)"), SP_PARM, keycode));
248 returnCode(SP != 0 ? has_key_internal(keycode, SP_PARM->_keytry) : FALSE);
255 return NCURSES_SP_NAME(has_key) (CURRENT_SCREEN, keycode);
258 #endif /* NCURSES_EXT_FUNCS */
261 * Internal entrypoints use SCREEN* parameter to obtain capabilities rather
265 #define CUR SP_TERMTYPE
268 NCURSES_SP_NAME(_nc_putp_flush) (NCURSES_SP_DCLx
269 const char *name, const char *value)
271 int rc = _nc_putp(name, value);
280 _nc_putp_flush(const char *name, const char *value)
282 return NCURSES_SP_NAME(_nc_putp_flush) (CURRENT_SCREEN, name, value);
286 /* Turn the keypad on/off
288 * Note: we flush the output because changing this mode causes some terminals
289 * to emit different escape sequences for cursor and keypad keys. If we don't
290 * flush, then the next wgetch may get the escape sequence that corresponds to
291 * the terminal state _before_ switching modes.
294 _nc_keypad(SCREEN *sp, bool flag)
301 * We might have this situation in a multithreaded application that
302 * has wgetch() reading in more than one thread. putp() and below
303 * may use SP explicitly.
305 if (_nc_use_pthreads && sp != CURRENT_SCREEN) {
308 /* cannot use use_screen(), since that is not in tinfo library */
309 _nc_lock_global(curses);
310 save_sp = CURRENT_SCREEN;
312 rc = _nc_keypad(sp, flag);
313 _nc_set_screen(save_sp);
314 _nc_unlock_global(curses);
319 (void) _nc_putp_flush("keypad_xmit", keypad_xmit);
320 } else if (!flag && keypad_local) {
321 (void) _nc_putp_flush("keypad_local", keypad_local);
324 if (flag && !sp->_tried) {
328 sp->_keypad_on = flag;
336 _nc_meta(SCREEN *sp, bool flag)
340 /* Ok, we stay relaxed and don't signal an error if win is NULL */
343 sp->_use_meta = flag;
346 _nc_putp("meta_on", meta_on);
348 _nc_putp("meta_off", meta_off);