1 /* @(#)wwlabel.c 8.1 (Berkeley) 6/6/93 */ 2 /* $NetBSD: wwlabel.c,v 1.8 2009/04/14 08:50:06 lukem Exp $ */ 3 4 /* 5 * Copyright (c) 1983, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * Edward Wang at The University of California, Berkeley. 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 University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include "ww.h" 37 #include "char.h" 38 39 /* 40 * Label window w on f, 41 * at 1 line above w and 'where' columns from it's left edge. 42 * Gross, but it works. 43 */ 44 void 45 wwlabel(struct ww *w, struct ww *f, int where, char *l, int mode) 46 { 47 int row; 48 int j; 49 int jj; 50 char *win; 51 union ww_char *buf; 52 union ww_char *ns; 53 char *fmap; 54 unsigned char *smap; 55 char touched; 56 const char *p; 57 58 if (f->ww_fmap == 0) 59 return; 60 61 row = w->ww_w.t - 1; 62 if (row < f->ww_i.t || row >= f->ww_i.b) 63 return; 64 win = f->ww_win[row]; 65 buf = f->ww_buf[row]; 66 fmap = f->ww_fmap[row]; 67 ns = wwns[row]; 68 smap = wwsmap[row]; 69 touched = wwtouched[row]; 70 mode <<= WWC_MSHIFT; 71 72 jj = MIN(w->ww_i.r, f->ww_i.r); 73 j = w->ww_i.l + where; 74 while (j < jj && *l) 75 for (p = unctrl(*l++); j < jj && *p; j++, p++) { 76 /* can't label if not already framed */ 77 if (win[j] & WWM_GLS) 78 continue; 79 if (smap[j] != f->ww_index) 80 buf[j].c_w = mode | *p; 81 else { 82 ns[j].c_w = (buf[j].c_w = mode | *p) 83 ^ win[j] << WWC_MSHIFT; 84 touched |= WWU_TOUCHED; 85 } 86 fmap[j] |= WWF_LABEL; 87 } 88 wwtouched[row] = touched; 89 } 90