lib/libcurses/addch.c

   1 /*      $NetBSD: addch.c,v 1.17 2013/11/09 11:16:59 blymn 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 1.17 2013/11/09 11:16:59 blymn 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         return waddch(stdscr, ch);
  55 }
  56
  57 /*
  58  * mvaddch --
  59  *      Add the character to stdscr at the given location.
  60  */
  61 int
  62 mvaddch(int y, int x, chtype ch)
  63 {
  64         return mvwaddch(stdscr, y, x, ch);
  65 }
  66
  67 /*
  68  * mvwaddch --
  69  *      Add the character to the given window at the given location.
  70  */
  71 int
  72 mvwaddch(WINDOW *win, int y, int x, chtype ch)
  73 {
  74         if (wmove(win, y, x) == ERR)
  75                 return ERR;
  76
  77         return waddch(win, ch);
  78 }
  79
  80 #endif
  81
  82 /*
  83  * waddch --
  84  *      Add the character to the current position in the given window.
  85  *
  86  */
  87 int
  88 waddch(WINDOW *win, chtype ch)
  89 {
  90 #ifdef HAVE_WCHAR
  91         cchar_t cc;
  92 #else
  93         __LDATA buf;
  94 #endif
  95
  96 #ifdef HAVE_WCHAR
  97         __cursesi_chtype_to_cchar(ch, &cc);
  98 #else
  99         buf.ch = (wchar_t) ch & __CHARTEXT;
 100         buf.attr = (attr_t) ch & __ATTRIBUTES;
 101 #endif
 102
 103 #ifdef DEBUG
 104 #ifdef HAVE_WCHAR
 105         __CTRACE(__CTRACE_INPUT,
 106                  "addch: %d : 0x%x (adding char as wide char)\n",
 107                  cc.vals[0], cc.attributes);
 108 #else
 109         __CTRACE(__CTRACE_INPUT, "addch: %d : 0x%x\n", buf.ch, buf.attr);
 110 #endif
 111 #endif
 112
 113 #ifdef HAVE_WCHAR
 114         return (wadd_wch(win, &cc));
 115 #else
 116         return (__waddch(win, &buf));
 117 #endif
 118 }
 119
 120 int
 121 __waddch(WINDOW *win, __LDATA *dp)
 122 {
 123         char    buf[2];
 124
 125         buf[0] = dp->ch;
 126         buf[1] = '\0';
 127         return (_cursesi_waddbytes(win, buf, 1, dp->attr, 1));
 128 }