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addch.c revision 1.18 
      1 /*	$NetBSD: addch.c,v 1.18 2017/01/06 14:06:00 roy Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1981, 1993, 1994
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 #ifndef lint
     34 #if 0
     35 static char sccsid[] = "@(#)addch.c	8.2 (Berkeley) 5/4/94";
     36 #else
     37 __RCSID("$NetBSD: addch.c,v 1.18 2017/01/06 14:06:00 roy Exp $");
     38 #endif
     39 #endif				/* not lint */
     40 
     41 #include "curses.h"
     42 #include "curses_private.h"
     43 
     44 #ifndef _CURSES_USE_MACROS
     45 
     46 /*
     47  * addch --
     48  *	Add the character to the current position in stdscr.
     49  *
     50  */
     51 int
     52 addch(chtype ch)
     53 {
     54 
     55 	return waddch(stdscr, ch);
     56 }
     57 
     58 /*
     59  * mvaddch --
     60  *      Add the character to stdscr at the given location.
     61  */
     62 int
     63 mvaddch(int y, int x, chtype ch)
     64 {
     65 
     66 	return mvwaddch(stdscr, y, x, ch);
     67 }
     68 
     69 /*
     70  * mvwaddch --
     71  *      Add the character to the given window at the given location.
     72  */
     73 int
     74 mvwaddch(WINDOW *win, int y, int x, chtype ch)
     75 {
     76 
     77 	if (wmove(win, y, x) == ERR)
     78 		return ERR;
     79 
     80 	return waddch(win, ch);
     81 }
     82 
     83 #endif
     84 
     85 /*
     86  * waddch --
     87  *	Add the character to the current position in the given window.
     88  *
     89  */
     90 int
     91 waddch(WINDOW *win, chtype ch)
     92 {
     93 #ifdef HAVE_WCHAR
     94 	cchar_t cc;
     95 #else
     96 	__LDATA buf;
     97 #endif
     98 
     99 #ifdef HAVE_WCHAR
    100 	__cursesi_chtype_to_cchar(ch, &cc);
    101 #else
    102 	buf.ch = (wchar_t)ch & __CHARTEXT;
    103 	buf.attr = (attr_t)ch & __ATTRIBUTES;
    104 #endif
    105 
    106 #ifdef DEBUG
    107 #ifdef HAVE_WCHAR
    108 	__CTRACE(__CTRACE_INPUT,
    109 		 "addch: %d : 0x%x (adding char as wide char)\n",
    110 		 cc.vals[0], cc.attributes);
    111 #else
    112 	__CTRACE(__CTRACE_INPUT, "addch: %d : 0x%x\n", buf.ch, buf.attr);
    113 #endif
    114 #endif
    115 
    116 #ifdef HAVE_WCHAR
    117 	return wadd_wch(win, &cc);
    118 #else
    119 	return __waddch(win, &buf);
    120 #endif
    121 }
    122 
    123 int
    124 __waddch(WINDOW *win, __LDATA *dp)
    125 {
    126 	char	buf[2];
    127 
    128 	buf[0] = dp->ch;
    129 	buf[1] = '\0';
    130 	return _cursesi_waddbytes(win, buf, 1, dp->attr, 1);
    131 }
    132