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border.c revision 1.8
      1 /*	$NetBSD: border.c,v 1.8 2006/01/15 11:43:54 jdc Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2000 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Julian Coleman.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/cdefs.h>
     40 #ifndef lint
     41 __RCSID("$NetBSD: border.c,v 1.8 2006/01/15 11:43:54 jdc Exp $");
     42 #endif				/* not lint */
     43 
     44 #include "curses.h"
     45 #include "curses_private.h"
     46 
     47 #ifndef _CURSES_USE_MACROS
     48 
     49 /*
     50  * border --
     51  *      Draw a border around stdscr using the specified
     52  *	delimiting characters.
     53  */
     54 int
     55 border(chtype left, chtype right, chtype top, chtype bottom, chtype topleft,
     56        chtype topright, chtype botleft, chtype botright)
     57 {
     58 	return wborder(stdscr, left, right, top, bottom, topleft, topright,
     59 		       botleft, botright);
     60 }
     61 
     62 #endif
     63 
     64 /*
     65  * wborder --
     66  *	Draw a border around the given window using the specified delimiting
     67  *	characters.
     68  */
     69 int
     70 wborder(WINDOW *win, chtype left, chtype right, chtype top, chtype bottom,
     71 	chtype topleft, chtype topright, chtype botleft, chtype botright)
     72 {
     73 	int	 endy, endx, i;
     74 	__LDATA	*fp, *lp;
     75 
     76 	if (!(left & __CHARTEXT))
     77 		left |= ACS_VLINE;
     78 	if (!(right & __CHARTEXT))
     79 		right |= ACS_VLINE;
     80 	if (!(top & __CHARTEXT))
     81 		top |= ACS_HLINE;
     82 	if (!(bottom & __CHARTEXT))
     83 		bottom |= ACS_HLINE;
     84 	if (!(topleft & __CHARTEXT))
     85 		topleft |= ACS_ULCORNER;
     86 	if (!(topright & __CHARTEXT))
     87 		topright |= ACS_URCORNER;
     88 	if (!(botleft & __CHARTEXT))
     89 		botleft |= ACS_LLCORNER;
     90 	if (!(botright & __CHARTEXT))
     91 		botright |= ACS_LRCORNER;
     92 
     93 #ifdef DEBUG
     94 	__CTRACE("wborder: left = %c, 0x%x\n", left & __CHARTEXT,
     95 	    left & __ATTRIBUTES);
     96 	__CTRACE("wborder: right = %c, 0x%x\n", right & __CHARTEXT,
     97 	    right & __ATTRIBUTES);
     98 	__CTRACE("wborder: top = %c, 0x%x\n", top & __CHARTEXT,
     99 	    top & __ATTRIBUTES);
    100 	__CTRACE("wborder: bottom = %c, 0x%x\n", bottom & __CHARTEXT,
    101 	    bottom & __ATTRIBUTES);
    102 	__CTRACE("wborder: topleft = %c, 0x%x\n", topleft & __CHARTEXT,
    103 	    topleft & __ATTRIBUTES);
    104 	__CTRACE("wborder: topright = %c, 0x%x\n", topright & __CHARTEXT,
    105 	    topright & __ATTRIBUTES);
    106 	__CTRACE("wborder: botleft = %c, 0x%x\n", botleft & __CHARTEXT,
    107 	    botleft & __ATTRIBUTES);
    108 	__CTRACE("wborder: botright = %c, 0x%x\n", botright & __CHARTEXT,
    109 	    botright & __ATTRIBUTES);
    110 #endif
    111 
    112 	/* Merge window and background attributes */
    113 	left |= (left & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
    114 	left |= (left & __COLOR) ? (win->battr & ~__COLOR) : win->battr;
    115 	right |= (right & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
    116 	right |= (right & __COLOR) ? (win->battr & ~__COLOR) : win->battr;
    117 	top |= (top & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
    118 	top |= (top & __COLOR) ? (win->battr & ~__COLOR) : win->battr;
    119 	bottom |= (bottom & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
    120 	bottom |= (bottom & __COLOR) ? (win->battr & ~__COLOR) : win->battr;
    121 	topleft |= (topleft & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
    122 	topleft |= (topleft & __COLOR) ? (win->battr & ~__COLOR) : win->battr;
    123 	topright |= (topright & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
    124 	topright |= (topright & __COLOR) ? (win->battr & ~__COLOR) : win->battr;
    125 	botleft |= (botleft & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
    126 	botleft |= (botleft & __COLOR) ? (win->battr & ~__COLOR) : win->battr;
    127 	botright |= (botright & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
    128 	botright |= (botright & __COLOR) ? (win->battr & ~__COLOR) : win->battr;
    129 
    130 	endx = win->maxx - 1;
    131 	endy = win->maxy - 1;
    132 	fp = win->lines[0]->line;
    133 	lp = win->lines[endy]->line;
    134 
    135 	/* Sides */
    136 	for (i = 1; i < endy; i++) {
    137 		win->lines[i]->line[0].ch = (wchar_t) left & __CHARTEXT;
    138 		win->lines[i]->line[0].attr = (attr_t) left & __ATTRIBUTES;
    139 		win->lines[i]->line[endx].ch = (wchar_t) right & __CHARTEXT;
    140 		win->lines[i]->line[endx].attr = (attr_t) right & __ATTRIBUTES;
    141 	}
    142 	for (i = 1; i < endx; i++) {
    143 		fp[i].ch = (wchar_t) top & __CHARTEXT;
    144 		fp[i].attr = (attr_t) top & __ATTRIBUTES;
    145 		lp[i].ch = (wchar_t) bottom & __CHARTEXT;
    146 		lp[i].attr = (attr_t) bottom & __ATTRIBUTES;
    147 	}
    148 
    149 	/* Corners */
    150 	if (!(win->maxx == LINES && win->maxy == COLS &&
    151 	    (win->flags & __SCROLLOK) && (win->flags & __SCROLLWIN))) {
    152 		fp[0].ch = (wchar_t) topleft & __CHARTEXT;
    153 		fp[0].attr = (attr_t) topleft & __ATTRIBUTES;
    154 		fp[endx].ch = (wchar_t) topright & __CHARTEXT;
    155 		fp[endx].attr = (attr_t) topright & __ATTRIBUTES;
    156 		lp[0].ch = (wchar_t) botleft & __CHARTEXT;
    157 		lp[0].attr = (attr_t) botleft & __ATTRIBUTES;
    158 		lp[endx].ch = (wchar_t) botright & __CHARTEXT;
    159 		lp[endx].attr = (attr_t) botright & __ATTRIBUTES;
    160 	}
    161 	__touchwin(win);
    162 	return (OK);
    163 }
    164