diff options
Diffstat (limited to 'contrib/ncurses/ncurses/tinfo/lib_options.c')
| -rw-r--r-- | contrib/ncurses/ncurses/tinfo/lib_options.c | 261 |
1 files changed, 261 insertions, 0 deletions
diff --git a/contrib/ncurses/ncurses/tinfo/lib_options.c b/contrib/ncurses/ncurses/tinfo/lib_options.c new file mode 100644 index 000000000000..654e0edaa7aa --- /dev/null +++ b/contrib/ncurses/ncurses/tinfo/lib_options.c @@ -0,0 +1,261 @@ +/**************************************************************************** + * Copyright (c) 1998 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 <zmbenhal@netcom.com> 1992,1995 * + * and: Eric S. Raymond <esr@snark.thyrsus.com> * + ****************************************************************************/ + + +/* +** lib_options.c +** +** The routines to handle option setting. +** +*/ + +#include <curses.priv.h> + +#include <term.h> /* keypad_xmit, keypad_local, meta_on, meta_off */ + /* cursor_visible,cursor_normal,cursor_invisible */ + +MODULE_ID("$Id: lib_options.c,v 1.35 1999/07/04 00:18:28 tom Exp $") + +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); +} + + +void idcok(WINDOW *win, bool flag) +{ + T((T_CALLED("idcok(%p,%d)"), win, flag)); + + if (win) + _nc_idcok = win->_idcok = flag && has_ic(); + + returnVoid; +} + +int halfdelay(int t) +{ + T((T_CALLED("halfdelay(%d)"), t)); + + if (t < 1 || t > 255) + returnCode(ERR); + + cbreak(); + SP->_cbreak = t+1; + returnCode(OK); +} + +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); +} + +int notimeout(WINDOW *win, bool f) +{ + T((T_CALLED("notimout(%p,%d)"), win, f)); + + if (win) { + win->_notimeout = f; + returnCode(OK); + } + else + returnCode(ERR); +} + +void wtimeout(WINDOW *win, int delay) +{ + T((T_CALLED("wtimeout(%p,%d)"), win, delay)); + + if (win) { + win->_delay = delay; + } +} + +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); +} + + +int meta(WINDOW *win GCC_UNUSED, bool flag) +{ + /* Ok, we stay relaxed and don't signal an error if win is NULL */ + T((T_CALLED("meta(%p,%d)"), win, flag)); + + 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); + } + returnCode(OK); +} + +/* curs_set() moved here to narrow the kernel interface */ + +int curs_set(int vis) +{ +int cursor = SP->_cursor; + + T((T_CALLED("curs_set(%d)"), vis)); + + if (vis < 0 || vis > 2) + returnCode(ERR); + + if (vis == cursor) + returnCode(cursor); + + switch(vis) { + case 2: + if (cursor_visible) + { + TPUTS_TRACE("cursor_visible"); + putp(cursor_visible); + } + else + returnCode(ERR); + break; + case 1: + if (cursor_normal) + { + TPUTS_TRACE("cursor_normal"); + putp(cursor_normal); + } + else + returnCode(ERR); + break; + case 0: + if (cursor_invisible) + { + TPUTS_TRACE("cursor_invisible"); + putp(cursor_invisible); + } + else + returnCode(ERR); + break; + } + SP->_cursor = vis; + (void) fflush(SP->_ofp); + + returnCode(cursor==-1 ? 1 : cursor); +} + +int typeahead(int fd) +{ + T((T_CALLED("typeahead(%d)"), fd)); + SP->_checkfd = fd; + returnCode(OK); +} + +/* +** has_key() +** +** Return TRUE if the current terminal has the given key +** +*/ + +#ifdef NCURSES_EXT_FUNCS +static int has_key_internal(int keycode, struct 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)); +} + +int has_key(int keycode) +{ + T((T_CALLED("has_key(%d)"), keycode)); + returnCode(has_key_internal(keycode, SP->_keytry)); +} +#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. + */ +int _nc_keypad(bool flag) +{ + if (flag && keypad_xmit) + { + TPUTS_TRACE("keypad_xmit"); + putp(keypad_xmit); + (void) fflush(SP->_ofp); + } + else if (! flag && keypad_local) + { + TPUTS_TRACE("keypad_local"); + putp(keypad_local); + (void) fflush(SP->_ofp); + } + + if (flag && !SP->_tried) { + _nc_init_keytry(); + SP->_tried = TRUE; + } + return(OK); +} |