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border.c revision 1.4
      1 /*	$NetBSD: border.c,v 1.4 2000/04/15 13:17:03 blymn 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 "curses.h"
     40 #include "curses_private.h"
     41 
     42 #ifndef _CURSES_USE_MACROS
     43 
     44 /*
     45  * border --
     46  *      Draw a border around stdscr using the specified
     47  *	delimiting characters.
     48  */
     49 int
     50 border(chtype left, chtype right, chtype top, chtype bottom, chtype topleft,
     51        chtype topright, chtype botleft, chtype botright)
     52 {
     53 	return wborder(stdscr, left, right, top, bottom, topleft, topright,
     54 		       botleft, botright);
     55 }
     56 
     57 #endif
     58 
     59 /*
     60  * wborder --
     61  *	Draw a border around the given window using the specified delimiting
     62  *	characters.
     63  */
     64 int
     65 wborder(WINDOW *win, chtype left, chtype right, chtype top, chtype bottom,
     66 	chtype topleft, chtype topright, chtype botleft, chtype botright)
     67 {
     68 	int	 endy, endx, i;
     69 	__LDATA	*fp, *lp;
     70 
     71 	if (!(left & __CHARTEXT)) left = ACS_VLINE;
     72 	if (!(right & __CHARTEXT)) right = ACS_VLINE;
     73 	if (!(top & __CHARTEXT)) top = ACS_HLINE;
     74 	if (!(bottom & __CHARTEXT)) bottom = ACS_HLINE;
     75 	if (!(topleft & __CHARTEXT)) topleft = ACS_ULCORNER;
     76 	if (!(topright & __CHARTEXT)) topright = ACS_URCORNER;
     77 	if (!(botleft & __CHARTEXT)) botleft = ACS_LLCORNER;
     78 	if (!(botright & __CHARTEXT)) botright = ACS_LRCORNER;
     79 
     80 #ifdef DEBUG
     81 	__CTRACE("wborder: left = %c, 0x%x\n", left & __CHARTEXT,
     82 	    left & __ATTRIBUTES);
     83 	__CTRACE("wborder: right = %c, 0x%x\n", right & __CHARTEXT,
     84 	    right & __ATTRIBUTES);
     85 	__CTRACE("wborder: top = %c, 0x%x\n", top & __CHARTEXT,
     86 	    top & __ATTRIBUTES);
     87 	__CTRACE("wborder: bottom = %c, 0x%x\n", bottom & __CHARTEXT,
     88 	    bottom & __ATTRIBUTES);
     89 	__CTRACE("wborder: topleft = %c, 0x%x\n", topleft & __CHARTEXT,
     90 	    topleft & __ATTRIBUTES);
     91 	__CTRACE("wborder: topright = %c, 0x%x\n", topright & __CHARTEXT,
     92 	    topright & __ATTRIBUTES);
     93 	__CTRACE("wborder: botleft = %c, 0x%x\n", botleft & __CHARTEXT,
     94 	    botleft & __ATTRIBUTES);
     95 	__CTRACE("wborder: botright = %c, 0x%x\n", botright & __CHARTEXT,
     96 	    botright & __ATTRIBUTES);
     97 #endif
     98 
     99 	/* Merge window attributes */
    100 	left |= (left & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
    101 	right |= (right & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
    102 	top |= (top & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
    103 	bottom |= (bottom & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
    104 	topleft |= (topleft & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
    105 	topright |= (topright & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
    106 	botleft |= (botleft & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
    107 	botright |= (botright & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
    108 
    109 	endx = win->maxx - 1;
    110 	endy = win->maxy - 1;
    111 	fp = win->lines[0]->line;
    112 	lp = win->lines[endy]->line;
    113 
    114 	/* Sides */
    115 	for (i = 1; i < endy; i++) {
    116 		win->lines[i]->line[0].ch = (wchar_t) left & __CHARTEXT;
    117 		win->lines[i]->line[0].attr = (attr_t) left & __ATTRIBUTES;
    118 		win->lines[i]->line[endx].ch = (wchar_t) right & __CHARTEXT;
    119 		win->lines[i]->line[endx].attr = (attr_t) right & __ATTRIBUTES;
    120 	}
    121 	for (i = 1; i < endx; i++) {
    122 		fp[i].ch = (wchar_t) top & __CHARTEXT;
    123 		fp[i].attr = (attr_t) top & __ATTRIBUTES;
    124 		lp[i].ch = (wchar_t) bottom & __CHARTEXT;
    125 		lp[i].attr = (attr_t) bottom & __ATTRIBUTES;
    126 	}
    127 
    128 	/* Corners */
    129 	if (!(win->maxx == LINES && win->maxy == COLS &&
    130 	    (win->flags & __SCROLLOK) && (win->flags & __SCROLLWIN))) {
    131 		fp[0].ch = (wchar_t) topleft & __CHARTEXT;
    132 		fp[0].attr = (attr_t) topleft & __ATTRIBUTES;
    133 		fp[endx].ch = (wchar_t) topright & __CHARTEXT;
    134 		fp[endx].attr = (attr_t) topright & __ATTRIBUTES;
    135 		lp[0].ch = (wchar_t) botleft & __CHARTEXT;
    136 		lp[0].attr = (attr_t) botleft & __ATTRIBUTES;
    137 		lp[endx].ch = (wchar_t) botright & __CHARTEXT;
    138 		lp[endx].attr = (attr_t) botright & __ATTRIBUTES;
    139 	}
    140 	__touchwin(win);
    141 	return (OK);
    142 }
    143