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add_wch.c revision 1.1.2.7 
      1 /*   $NetBSD: add_wch.c,v 1.1.2.7 2007/03/18 10:00:32 jdc Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2005 The NetBSD Foundation Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from code donated to the NetBSD Foundation
      8  * by Ruibiao Qiu <ruibiao (at) arl.wustl.edu,ruibiao (at) gmail.com>.
      9  *
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions and the following disclaimer.
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  * 3. Neither the name of the NetBSD Foundation nor the names of its
     20  *    contributors may be used to endorse or promote products derived
     21  *    from this software without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
     24  * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
     25  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     26  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  */
     36 
     37 #include <sys/cdefs.h>
     38 #ifndef lint
     39 __RCSID("$NetBSD: add_wch.c,v 1.1.2.7 2007/03/18 10:00:32 jdc Exp $");
     40 #endif /* not lint */
     41 
     42 #include <stdlib.h>
     43 #include "curses.h"
     44 #include "curses_private.h"
     45 #ifdef DEBUG
     46 #include <assert.h>
     47 #endif
     48 
     49 /*
     50  * add_wch --
     51  *	Add the wide character to the current position in stdscr.
     52  *
     53  */
     54 int
     55 add_wch(const cchar_t *wch)
     56 {
     57 #ifndef HAVE_WCHAR
     58 	return ERR;
     59 #else
     60 	return wadd_wch(stdscr, wch);
     61 #endif /* HAVE_WCHAR */
     62 }
     63 
     64 
     65 /*
     66  * mvadd_wch --
     67  *      Add the wide character to stdscr at the given location.
     68  */
     69 int
     70 mvadd_wch(int y, int x, const cchar_t *wch)
     71 {
     72 #ifndef HAVE_WCHAR
     73 	return ERR;
     74 #else
     75 	return mvwadd_wch(stdscr, y, x, wch);
     76 #endif /* HAVE_WCHAR */
     77 }
     78 
     79 
     80 /*
     81  * mvwadd_wch --
     82  *      Add the character to the given window at the given location.
     83  */
     84 int
     85 mvwadd_wch(WINDOW *win, int y, int x, const cchar_t *wch)
     86 {
     87 #ifndef HAVE_WCHAR
     88 	return ERR;
     89 #else
     90 	if (wmove(win, y, x) == ERR)
     91 		return ERR;
     92 
     93 	return wadd_wch(win, wch);
     94 #endif /* HAVE_WCHAR */
     95 }
     96 
     97 
     98 /*
     99  * wadd_wch --
    100  *	Add the wide character to the current position in the
    101  *	given window.
    102  *
    103  */
    104 int
    105 wadd_wch(WINDOW *win, const cchar_t *wch)
    106 {
    107 #ifndef HAVE_WCHAR
    108 	return ERR;
    109 #else
    110 	int x = win->curx, y = win->cury;
    111 	__LINE *lnp = NULL;
    112 
    113 #ifdef DEBUG
    114 	int i;
    115 
    116 	for (i = 0; i < win->maxy; i++) {
    117 		assert(win->lines[i]->sentinel == SENTINEL_VALUE);
    118 	}
    119 	__CTRACE(__CTRACE_INPUT, "wadd_wch: win(%p)", win);
    120 #endif
    121 	lnp = win->lines[y];
    122 	return _cursesi_addwchar(win, &lnp, &y, &x, wch);
    123 #endif /* HAVE_WCHAR */
    124 }
    125