lib/libcurses/add_wch.c

   1 /*   $NetBSD: add_wch.c,v 1.3 2009/07/22 16:57:14 roy 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@arl.wustl.edu,ruibiao@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 1.3 2009/07/22 16:57:14 roy 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->alines[i]->sentinel == SENTINEL_VALUE);
 118         }
 119         __CTRACE(__CTRACE_INPUT, "wadd_wch: win(%p)", win);
 120 #endif
 121         lnp = win->alines[y];
 122         return _cursesi_addwchar(win, &lnp, &y, &x, wch);
 123 #endif /* HAVE_WCHAR */
 124 }