1 /* $NetBSD: wwlabel.c,v 1.8 2009/04/14 08:50:06 lukem Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Edward Wang at The University of California, Berkeley. 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. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include <sys/cdefs.h> 36 #ifndef lint 37 #if 0 38 static char sccsid[] = "@(#)wwlabel.c 8.1 (Berkeley) 6/6/93"; 39 #else 40 __RCSID("$NetBSD: wwlabel.c,v 1.8 2009/04/14 08:50:06 lukem Exp $"); 41 #endif 42 #endif /* not lint */ 43 44 #include "ww.h" 45 #include "char.h" 46 47 /* 48 * Label window w on f, 49 * at 1 line above w and 'where' columns from it's left edge. 50 * Gross, but it works. 51 */ 52 void 53 wwlabel(struct ww *w, struct ww *f, int where, char *l, int mode) 54 { 55 int row; 56 int j; 57 int jj; 58 char *win; 59 union ww_char *buf; 60 union ww_char *ns; 61 char *fmap; 62 unsigned char *smap; 63 char touched; 64 const char *p; 65 66 if (f->ww_fmap == 0) 67 return; 68 69 row = w->ww_w.t - 1; 70 if (row < f->ww_i.t || row >= f->ww_i.b) 71 return; 72 win = f->ww_win[row]; 73 buf = f->ww_buf[row]; 74 fmap = f->ww_fmap[row]; 75 ns = wwns[row]; 76 smap = wwsmap[row]; 77 touched = wwtouched[row]; 78 mode <<= WWC_MSHIFT; 79 80 jj = MIN(w->ww_i.r, f->ww_i.r); 81 j = w->ww_i.l + where; 82 while (j < jj && *l) 83 for (p = unctrl(*l++); j < jj && *p; j++, p++) { 84 /* can't label if not already framed */ 85 if (win[j] & WWM_GLS) 86 continue; 87 if (smap[j] != f->ww_index) 88 buf[j].c_w = mode | *p; 89 else { 90 ns[j].c_w = (buf[j].c_w = mode | *p) 91 ^ win[j] << WWC_MSHIFT; 92 touched |= WWU_TOUCHED; 93 } 94 fmap[j] |= WWF_LABEL; 95 } 96 wwtouched[row] = touched; 97 } 98