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1.6 ! millert 1: /* $OpenBSD: wwframe.c,v 1.5 2001/11/19 19:02:18 mpech Exp $ */
1.2 niklas 2: /* $NetBSD: wwframe.c,v 1.4 1996/02/08 21:49:05 mycroft Exp $ */
1.1 deraadt 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.
1.6 ! millert 19: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 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: #ifndef lint
37: #if 0
38: static char sccsid[] = "@(#)wwframe.c 8.1 (Berkeley) 6/6/93";
39: #else
1.6 ! millert 40: static char rcsid[] = "$OpenBSD: wwframe.c,v 1.5 2001/11/19 19:02:18 mpech Exp $";
1.1 deraadt 41: #endif
42: #endif /* not lint */
43:
44: #include "ww.h"
45: #include "tt.h"
46:
47: #define frameok(w, r, c) (w1 = wwindex[wwsmap[r][c]], \
48: w1->ww_fmap || w1->ww_order > (w)->ww_order)
49:
50: wwframe(w, wframe)
1.5 mpech 51: struct ww *w;
1.1 deraadt 52: struct ww *wframe;
53: {
1.5 mpech 54: int r, c;
1.1 deraadt 55: char a1, a2, a3;
56: char b1, b2, b3;
1.5 mpech 57: int code;
58: struct ww *w1;
1.1 deraadt 59:
60: if (w->ww_w.t > 0) {
61: r = w->ww_w.t - 1;
62: c = w->ww_i.l - 1;
63: a1 = 0;
64: a2 = 0;
65: b1 = 0;
66: b2 = c < 0 || frameok(w, r, c);
67:
68: for (; c < w->ww_i.r; c++) {
69: if (c + 1 >= wwncol) {
70: a3 = 1;
71: b3 = 1;
72: } else {
1.2 niklas 73: a3 = w->ww_index == wwsmap[r + 1][c + 1];
1.1 deraadt 74: b3 = frameok(w, r, c + 1);
75: }
76: if (b2) {
77: code = 0;
78: if ((a1 || a2) && b1)
79: code |= WWF_L;
80: if ((a2 || a3) && b3)
81: code |= WWF_R;
82: if (code)
83: wwframec(wframe, r, c, code|WWF_TOP);
84: }
85: a1 = a2;
86: a2 = a3;
87: b1 = b2;
88: b2 = b3;
89: }
90: if ((a1 || a2) && b1 && b2)
91: wwframec(wframe, r, c, WWF_L|WWF_TOP);
92: }
93:
94: if (w->ww_w.b < wwnrow) {
95: r = w->ww_w.b;
96: c = w->ww_i.l - 1;
97: a1 = 0;
98: a2 = 0;
99: b1 = 0;
100: b2 = c < 0 || frameok(w, r, c);
101:
102: for (; c < w->ww_i.r; c++) {
103: if (c + 1 >= wwncol) {
104: a3 = 1;
105: b3 = 1;
106: } else {
1.2 niklas 107: a3 = w->ww_index == wwsmap[r - 1][c + 1];
1.1 deraadt 108: b3 = frameok(w, r, c + 1);
109: }
110: if (b2) {
111: code = 0;
112: if ((a1 || a2) && b1)
113: code |= WWF_L;
114: if ((a2 || a3) && b3)
115: code |= WWF_R;
116: if (code)
117: wwframec(wframe, r, c, code);
118: }
119: a1 = a2;
120: a2 = a3;
121: b1 = b2;
122: b2 = b3;
123: }
124: if ((a1 || a2) && b1 && b2)
125: wwframec(wframe, r, c, WWF_L);
126: }
127:
128: if (w->ww_w.l > 0) {
129: r = w->ww_i.t - 1;
130: c = w->ww_w.l - 1;
131: a1 = 0;
132: a2 = 0;
133: b1 = 0;
134: b2 = r < 0 || frameok(w, r, c);
135:
136: for (; r < w->ww_i.b; r++) {
137: if (r + 1 >= wwnrow) {
138: a3 = 1;
139: b3 = 1;
140: } else {
141: a3 = w->ww_index == wwsmap[r + 1][c + 1];
142: b3 = frameok(w, r + 1, c);
143: }
144: if (b2) {
145: code = 0;
146: if ((a1 || a2) && b1)
147: code |= WWF_U;
148: if ((a2 || a3) && b3)
149: code |= WWF_D;
150: if (code)
151: wwframec(wframe, r, c, code);
152: }
153: a1 = a2;
154: a2 = a3;
155: b1 = b2;
156: b2 = b3;
157: }
158: if ((a1 || a2) && b1 && b2)
159: wwframec(wframe, r, c, WWF_U);
160: }
161:
162: if (w->ww_w.r < wwncol) {
163: r = w->ww_i.t - 1;
164: c = w->ww_w.r;
165: a1 = 0;
166: a2 = 0;
167: b1 = 0;
168: b2 = r < 0 || frameok(w, r, c);
169:
170: for (; r < w->ww_i.b; r++) {
171: if (r + 1 >= wwnrow) {
172: a3 = 1;
173: b3 = 1;
174: } else {
175: a3 = w->ww_index == wwsmap[r + 1][c - 1];
176: b3 = frameok(w, r + 1, c);
177: }
178: if (b2) {
179: code = 0;
180: if ((a1 || a2) && b1)
181: code |= WWF_U;
182: if ((a2 || a3) && b3)
183: code |= WWF_D;
184: if (code)
185: wwframec(wframe, r, c, code);
186: }
187: a1 = a2;
188: a2 = a3;
189: b1 = b2;
190: b2 = b3;
191: }
192: if ((a1 || a2) && b1 && b2)
193: wwframec(wframe, r, c, WWF_U);
194: }
195: }
196:
197: wwframec(f, r, c, code)
1.5 mpech 198: struct ww *f;
199: int r, c;
1.1 deraadt 200: char code;
201: {
202: char oldcode;
1.5 mpech 203: unsigned char *smap;
1.1 deraadt 204:
205: if (r < f->ww_i.t || r >= f->ww_i.b || c < f->ww_i.l || c >= f->ww_i.r)
206: return;
207:
208: smap = &wwsmap[r][c];
209:
210: {
1.5 mpech 211: struct ww *w;
1.1 deraadt 212:
213: w = wwindex[*smap];
214: if (w->ww_order > f->ww_order) {
215: if (w != &wwnobody && w->ww_win[r][c] == 0)
216: w->ww_nvis[r]--;
217: *smap = f->ww_index;
218: }
219: }
220:
221: if (f->ww_fmap != 0) {
1.5 mpech 222: char *fmap;
1.1 deraadt 223:
224: fmap = &f->ww_fmap[r][c];
225: oldcode = *fmap;
226: *fmap |= code;
227: if (code & WWF_TOP)
228: *fmap &= ~WWF_LABEL;
229: code = *fmap;
230: } else
231: oldcode = 0;
232: {
1.5 mpech 233: char *win = &f->ww_win[r][c];
1.1 deraadt 234:
235: if (*win == WWM_GLS && *smap == f->ww_index)
236: f->ww_nvis[r]++;
237: *win &= ~WWM_GLS;
238: }
239: if (oldcode != code && (code & WWF_LABEL) == 0) {
1.5 mpech 240: short frame;
1.1 deraadt 241:
242: frame = tt.tt_frame[code & WWF_MASK];
243: f->ww_buf[r][c].c_w = frame;
244: if (wwsmap[r][c] == f->ww_index) {
245: wwtouched[r] |= WWU_TOUCHED;
246: wwns[r][c].c_w = frame;
247: }
248: }
249: }