| 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 | } |