/**************************************************************************** * Copyright (c) 1998-2005,2006 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * * copy of this software and associated documentation files (the * * "Software"), to deal in the Software without restriction, including * * without limitation the rights to use, copy, modify, merge, publish, * * distribute, distribute with modifications, sublicense, and/or sell * * copies of the Software, and to permit persons to whom the Software is * * furnished to do so, subject to the following conditions: * * * * The above copyright notice and this permission notice shall be included * * in all copies or substantial portions of the Software. * * * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * * * Except as contained in this notice, the name(s) of the above copyright * * holders shall not be used in advertising or otherwise to promote the * * sale, use or other dealings in this Software without prior written * * authorization. * ****************************************************************************/ /**************************************************************************** * Author: Zeyd M. Ben-Halim 1992,1995 * * and: Eric S. Raymond * * and: Thomas E. Dickey 1996-on * ****************************************************************************/ /* ** lib_options.c ** ** The routines to handle option setting. ** */ #include #include MODULE_ID("$Id: lib_options.c,v 1.50 2006/12/30 16:03:27 tom Exp $") NCURSES_EXPORT(int) idlok(WINDOW *win, bool flag) { T((T_CALLED("idlok(%p,%d)"), win, flag)); if (win) { _nc_idlok = win->_idlok = (flag && (has_il() || change_scroll_region)); returnCode(OK); } else returnCode(ERR); } NCURSES_EXPORT(void) idcok(WINDOW *win, bool flag) { T((T_CALLED("idcok(%p,%d)"), win, flag)); if (win) _nc_idcok = win->_idcok = (flag && has_ic()); returnVoid; } NCURSES_EXPORT(int) halfdelay(int t) { T((T_CALLED("halfdelay(%d)"), t)); if (t < 1 || t > 255 || SP == 0) returnCode(ERR); cbreak(); SP->_cbreak = t + 1; returnCode(OK); } NCURSES_EXPORT(int) nodelay(WINDOW *win, bool flag) { T((T_CALLED("nodelay(%p,%d)"), win, flag)); if (win) { if (flag == TRUE) win->_delay = 0; else win->_delay = -1; returnCode(OK); } else returnCode(ERR); } NCURSES_EXPORT(int) notimeout(WINDOW *win, bool f) { T((T_CALLED("notimeout(%p,%d)"), win, f)); if (win) { win->_notimeout = f; returnCode(OK); } else returnCode(ERR); } NCURSES_EXPORT(void) wtimeout(WINDOW *win, int delay) { T((T_CALLED("wtimeout(%p,%d)"), win, delay)); if (win) { win->_delay = delay; } returnVoid; } NCURSES_EXPORT(int) keypad(WINDOW *win, bool flag) { T((T_CALLED("keypad(%p,%d)"), win, flag)); if (win) { win->_use_keypad = flag; returnCode(_nc_keypad(flag)); } else returnCode(ERR); } NCURSES_EXPORT(int) meta(WINDOW *win GCC_UNUSED, bool flag) { int result = ERR; /* Ok, we stay relaxed and don't signal an error if win is NULL */ T((T_CALLED("meta(%p,%d)"), win, flag)); if (SP != 0) { SP->_use_meta = flag; if (flag && meta_on) { TPUTS_TRACE("meta_on"); putp(meta_on); } else if (!flag && meta_off) { TPUTS_TRACE("meta_off"); putp(meta_off); } result = OK; } returnCode(result); } /* curs_set() moved here to narrow the kernel interface */ NCURSES_EXPORT(int) curs_set(int vis) { int result = ERR; T((T_CALLED("curs_set(%d)"), vis)); if (SP != 0 && vis >= 0 && vis <= 2) { int cursor = SP->_cursor; if (vis == cursor) { result = cursor; } else { result = (cursor == -1 ? 1 : cursor); switch (vis) { case 2: if (cursor_visible) { TPUTS_TRACE("cursor_visible"); putp(cursor_visible); } else result = ERR; break; case 1: if (cursor_normal) { TPUTS_TRACE("cursor_normal"); putp(cursor_normal); } else result = ERR; break; case 0: if (cursor_invisible) { TPUTS_TRACE("cursor_invisible"); putp(cursor_invisible); } else result = ERR; break; } SP->_cursor = vis; _nc_flush(); } } returnCode(result); } NCURSES_EXPORT(int) typeahead(int fd) { T((T_CALLED("typeahead(%d)"), fd)); if (SP != 0) { SP->_checkfd = fd; returnCode(OK); } else { returnCode(ERR); } } /* ** has_key() ** ** Return TRUE if the current terminal has the given key ** */ #if NCURSES_EXT_FUNCS static int has_key_internal(int keycode, TRIES *tp) { if (tp == 0) return (FALSE); else if (tp->value == keycode) return (TRUE); else return (has_key_internal(keycode, tp->child) || has_key_internal(keycode, tp->sibling)); } NCURSES_EXPORT(int) has_key(int keycode) { T((T_CALLED("has_key(%d)"), keycode)); returnCode(SP != 0 ? has_key_internal(keycode, SP->_keytry) : FALSE); } #endif /* NCURSES_EXT_FUNCS */ /* Turn the keypad on/off * * Note: we flush the output because changing this mode causes some terminals * to emit different escape sequences for cursor and keypad keys. If we don't * flush, then the next wgetch may get the escape sequence that corresponds to * the terminal state _before_ switching modes. */ NCURSES_EXPORT(int) _nc_keypad(bool flag) { if (flag && keypad_xmit) { TPUTS_TRACE("keypad_xmit"); putp(keypad_xmit); _nc_flush(); } else if (!flag && keypad_local) { TPUTS_TRACE("keypad_local"); putp(keypad_local); _nc_flush(); } if (SP != 0) { if (flag && !SP->_tried) { _nc_init_keytry(); SP->_tried = TRUE; } SP->_keypad_on = flag; } return (OK); }