1 /****************************************************************************
2 * Copyright (c) 1998-2008,2009 Free Software Foundation, Inc. *
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5 * copy of this software and associated documentation files (the *
6 * "Software"), to deal in the Software without restriction, including *
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15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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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>
47 MODULE_ID("$Id: lib_options.c,v 1.61 2009/05/02 21:19:53 tom Exp $")
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());
75 NCURSES_SP_NAME(halfdelay) (NCURSES_SP_DCLx int t)
77 T((T_CALLED("halfdelay(%d)"), t));
79 if (t < 1 || t > 255 || SP_PARM == 0)
83 SP_PARM->_cbreak = t + 1;
91 return NCURSES_SP_NAME(halfdelay) (CURRENT_SCREEN, t);
96 nodelay(WINDOW *win, bool flag)
98 T((T_CALLED("nodelay(%p,%d)"), win, flag));
111 notimeout(WINDOW *win, bool f)
113 T((T_CALLED("notimeout(%p,%d)"), win, f));
123 wtimeout(WINDOW *win, int delay)
125 T((T_CALLED("wtimeout(%p,%d)"), win, delay));
134 keypad(WINDOW *win, bool flag)
136 T((T_CALLED("keypad(%p,%d)"), win, flag));
139 win->_use_keypad = flag;
140 returnCode(_nc_keypad(SP, flag));
146 meta(WINDOW *win GCC_UNUSED, bool flag)
150 /* Ok, we stay relaxed and don't signal an error if win is NULL */
151 T((T_CALLED("meta(%p,%d)"), win, flag));
152 result = _nc_meta(SP, flag);
156 /* curs_set() moved here to narrow the kernel interface */
159 NCURSES_SP_NAME(curs_set) (NCURSES_SP_DCLx int vis)
163 T((T_CALLED("curs_set(%p,%d)"), SP_PARM, vis));
164 if (SP_PARM != 0 && vis >= 0 && vis <= 2) {
165 int cursor = SP_PARM->_cursor;
172 result = _nc_putp_flush("cursor_visible", cursor_visible);
175 result = _nc_putp_flush("cursor_normal", cursor_normal);
178 result = _nc_putp_flush("cursor_invisible", cursor_invisible);
182 result = (cursor == -1 ? 1 : cursor);
183 SP_PARM->_cursor = vis;
193 return (NCURSES_SP_NAME(curs_set) (CURRENT_SCREEN, vis));
198 NCURSES_SP_NAME(typeahead) (NCURSES_SP_DCLx int fd)
200 T((T_CALLED("typeahead(%d)"), fd));
202 SP_PARM->_checkfd = fd;
213 return NCURSES_SP_NAME(typeahead) (CURRENT_SCREEN, fd);
220 ** Return TRUE if the current terminal has the given key
224 #if NCURSES_EXT_FUNCS
226 has_key_internal(int keycode, TRIES * tp)
230 else if (tp->value == keycode)
233 return (has_key_internal(keycode, tp->child)
234 || has_key_internal(keycode, tp->sibling));
240 T((T_CALLED("has_key(%d)"), keycode));
241 returnCode(SP != 0 ? has_key_internal(keycode, SP->_keytry) : FALSE);
243 #endif /* NCURSES_EXT_FUNCS */
246 * Internal entrypoints use SCREEN* parameter to obtain capabilities rather
250 #define CUR (sp->_term)->type.
253 NCURSES_SP_NAME(_nc_putp) (NCURSES_SP_DCLx
254 const char *name GCC_UNUSED, const char *value)
267 _nc_putp(const char *name, const char *value)
269 return NCURSES_SP_NAME(_nc_putp) (CURRENT_SCREEN, name, value);
274 NCURSES_SP_NAME(_nc_putp_flush) (NCURSES_SP_DCLx
275 const char *name, const char *value)
277 int rc = _nc_putp(name, value);
286 _nc_putp_flush(const char *name, const char *value)
288 return NCURSES_SP_NAME(_nc_putp_flush) (CURRENT_SCREEN, name, value);
292 /* Turn the keypad on/off
294 * Note: we flush the output because changing this mode causes some terminals
295 * to emit different escape sequences for cursor and keypad keys. If we don't
296 * flush, then the next wgetch may get the escape sequence that corresponds to
297 * the terminal state _before_ switching modes.
300 _nc_keypad(SCREEN *sp, bool flag)
307 * We might have this situation in a multithreaded application that
308 * has wgetch() reading in more than one thread. putp() and below
309 * may use SP explicitly.
311 if (_nc_use_pthreads && sp != CURRENT_SCREEN) {
314 /* cannot use use_screen(), since that is not in tinfo library */
315 _nc_lock_global(curses);
316 save_sp = CURRENT_SCREEN;
318 rc = _nc_keypad(sp, flag);
319 _nc_set_screen(save_sp);
320 _nc_unlock_global(curses);
325 (void) _nc_putp_flush("keypad_xmit", keypad_xmit);
326 } else if (!flag && keypad_local) {
327 (void) _nc_putp_flush("keypad_local", keypad_local);
330 if (flag && !sp->_tried) {
334 sp->_keypad_on = flag;
342 _nc_meta(SCREEN *sp, bool flag)
346 /* Ok, we stay relaxed and don't signal an error if win is NULL */
349 sp->_use_meta = flag;
352 _nc_putp("meta_on", meta_on);
354 _nc_putp("meta_off", meta_off);