border.c revision 1.21 1 /* $NetBSD: border.c,v 1.21 2021/10/19 06:41:03 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 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 #ifndef lint
34 __RCSID("$NetBSD: border.c,v 1.21 2021/10/19 06:41:03 blymn Exp $");
35 #endif /* not lint */
36
37 #include <stdlib.h>
38 #include <string.h>
39
40 #include "curses.h"
41 #include "curses_private.h"
42
43 #ifndef _CURSES_USE_MACROS
44
45 /*
46 * border --
47 * Draw a border around stdscr using the specified
48 * delimiting characters.
49 */
50 int
51 border(chtype left, chtype right, chtype top, chtype bottom, chtype topleft,
52 chtype topright, chtype botleft, chtype botright)
53 {
54 return wborder(stdscr, left, right, top, bottom, topleft, topright,
55 botleft, botright);
56 }
57
58 #endif
59
60 /*
61 * wborder --
62 * Draw a border around the given window using the specified delimiting
63 * characters.
64 */
65 int
66 wborder(WINDOW *win, chtype left, chtype right, chtype top, chtype bottom,
67 chtype topleft, chtype topright, chtype botleft, chtype botright)
68 {
69 #ifndef HAVE_WCHAR
70 int endy, endx, i;
71 __LDATA *fp, *lp;
72
73 if (!(left & __CHARTEXT))
74 left |= ACS_VLINE;
75 if (!(right & __CHARTEXT))
76 right |= ACS_VLINE;
77 if (!(top & __CHARTEXT))
78 top |= ACS_HLINE;
79 if (!(bottom & __CHARTEXT))
80 bottom |= ACS_HLINE;
81 if (!(topleft & __CHARTEXT))
82 topleft |= ACS_ULCORNER;
83 if (!(topright & __CHARTEXT))
84 topright |= ACS_URCORNER;
85 if (!(botleft & __CHARTEXT))
86 botleft |= ACS_LLCORNER;
87 if (!(botright & __CHARTEXT))
88 botright |= ACS_LRCORNER;
89
90 __CTRACE(__CTRACE_INPUT, "wborder: window 0x%p\n", win);
91 __CTRACE(__CTRACE_INPUT, "wborder: left = %c, 0x%x\n",
92 left & __CHARTEXT, left & __ATTRIBUTES);
93 __CTRACE(__CTRACE_INPUT, "wborder: right = %c, 0x%x\n",
94 right & __CHARTEXT, right & __ATTRIBUTES);
95 __CTRACE(__CTRACE_INPUT, "wborder: top = %c, 0x%x\n",
96 top & __CHARTEXT, top & __ATTRIBUTES);
97 __CTRACE(__CTRACE_INPUT, "wborder: bottom = %c, 0x%x\n",
98 bottom & __CHARTEXT, bottom & __ATTRIBUTES);
99 __CTRACE(__CTRACE_INPUT, "wborder: topleft = %c, 0x%x\n",
100 topleft & __CHARTEXT, topleft & __ATTRIBUTES);
101 __CTRACE(__CTRACE_INPUT, "wborder: topright = %c, 0x%x\n",
102 topright & __CHARTEXT, topright & __ATTRIBUTES);
103 __CTRACE(__CTRACE_INPUT, "wborder: botleft = %c, 0x%x\n",
104 botleft & __CHARTEXT, botleft & __ATTRIBUTES);
105 __CTRACE(__CTRACE_INPUT, "wborder: botright = %c, 0x%x\n",
106 botright & __CHARTEXT, botright & __ATTRIBUTES);
107
108 /* Merge window and background attributes */
109 left |= (left & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
110 left |= (left & __COLOR) ? (win->battr & ~__COLOR) : win->battr;
111 right |= (right & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
112 right |= (right & __COLOR) ? (win->battr & ~__COLOR) : win->battr;
113 top |= (top & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
114 top |= (top & __COLOR) ? (win->battr & ~__COLOR) : win->battr;
115 bottom |= (bottom & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
116 bottom |= (bottom & __COLOR) ? (win->battr & ~__COLOR) : win->battr;
117 topleft |= (topleft & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
118 topleft |= (topleft & __COLOR) ? (win->battr & ~__COLOR) : win->battr;
119 topright |= (topright & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
120 topright |= (topright & __COLOR) ? (win->battr & ~__COLOR) : win->battr;
121 botleft |= (botleft & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
122 botleft |= (botleft & __COLOR) ? (win->battr & ~__COLOR) : win->battr;
123 botright |= (botright & __COLOR) ? (win->wattr & ~__COLOR) : win->wattr;
124 botright |= (botright & __COLOR) ? (win->battr & ~__COLOR) : win->battr;
125
126 endx = win->maxx - 1;
127 endy = win->maxy - 1;
128 fp = win->alines[0]->line;
129 lp = win->alines[endy]->line;
130
131 /* Sides */
132 for (i = 1; i < endy; i++) {
133 win->alines[i]->line[0].ch = (wchar_t) left & __CHARTEXT;
134 win->alines[i]->line[0].attr = (attr_t) left & __ATTRIBUTES;
135 win->alines[i]->line[endx].ch = (wchar_t) right & __CHARTEXT;
136 win->alines[i]->line[endx].attr = (attr_t) right & __ATTRIBUTES;
137 }
138 for (i = 1; i < endx; i++) {
139 fp[i].ch = (wchar_t) top & __CHARTEXT;
140 fp[i].attr = (attr_t) top & __ATTRIBUTES;
141 lp[i].ch = (wchar_t) bottom & __CHARTEXT;
142 lp[i].attr = (attr_t) bottom & __ATTRIBUTES;
143 }
144
145 /* Corners */
146 if (!(win->maxy == LINES && win->maxx == COLS &&
147 (win->flags & __SCROLLOK) && (win->flags & __SCROLLWIN))) {
148 fp[0].ch = (wchar_t) topleft & __CHARTEXT;
149 fp[0].attr = (attr_t) topleft & __ATTRIBUTES;
150 fp[endx].ch = (wchar_t) topright & __CHARTEXT;
151 fp[endx].attr = (attr_t) topright & __ATTRIBUTES;
152 lp[0].ch = (wchar_t) botleft & __CHARTEXT;
153 lp[0].attr = (attr_t) botleft & __ATTRIBUTES;
154 lp[endx].ch = (wchar_t) botright & __CHARTEXT;
155 lp[endx].attr = (attr_t) botright & __ATTRIBUTES;
156 }
157 __touchwin(win);
158 return OK;
159 #else /* HAVE_WCHAR */
160 cchar_t ls, rs, ts, bs, tl, tr, bl, br;
161 cchar_t *lsp, *rsp, *tsp, *bsp, *tlp, *trp, *blp, *brp;
162
163 #define S(in, out, def) \
164 if (in & __CHARTEXT) { \
165 __cursesi_chtype_to_cchar(in, &out); \
166 } else { \
167 memcpy(&out, def, sizeof(cchar_t)); \
168 out.attributes |= in & __ATTRIBUTES; \
169 } \
170 out##p = &out;
171
172 S(left, ls, WACS_VLINE);
173 S(right, rs, WACS_VLINE);
174 S(top, ts, WACS_HLINE);
175 S(bottom, bs, WACS_HLINE);
176 S(topleft, tl, WACS_ULCORNER);
177 S(topright, tr, WACS_URCORNER);
178 S(botleft, bl, WACS_LLCORNER);
179 S(botright, br, WACS_LRCORNER);
180 #undef S
181 return wborder_set(win, lsp, rsp, tsp, bsp, tlp, trp, blp, brp);
182 #endif /* HAVE_WCHAR */
183 }
184
185 int border_set(const cchar_t *ls, const cchar_t *rs, const cchar_t *ts,
186 const cchar_t *bs, const cchar_t *tl, const cchar_t *tr,
187 const cchar_t *bl, const cchar_t *br)
188 {
189 #ifndef HAVE_WCHAR
190 return ERR;
191 #else
192 return wborder_set(stdscr, ls, rs, ts, bs, tl, tr, bl, br);
193 #endif /* HAVE_WCHAR */
194 }
195
196 int wborder_set(WINDOW *win, const cchar_t *ls, const cchar_t *rs,
197 const cchar_t *ts, const cchar_t *bs,
198 const cchar_t *tl, const cchar_t *tr,
199 const cchar_t *bl, const cchar_t *br)
200 {
201 #ifndef HAVE_WCHAR
202 return ERR;
203 #else
204 int endy, endx, i, j, k, cw, pcw, tlcw, blcw, trcw, brcw;
205 cchar_t left, right, bottom, top, topleft, topright, botleft, botright;
206 nschar_t *np, *tnp;
207
208 if (ls && wcwidth(ls->vals[0]))
209 memcpy(&left, ls, sizeof(cchar_t));
210 else
211 memcpy(&left, WACS_VLINE, sizeof(cchar_t));
212 if (rs && wcwidth( rs->vals[0]))
213 memcpy(&right, rs, sizeof(cchar_t));
214 else
215 memcpy(&right, WACS_VLINE, sizeof(cchar_t));
216 if (ts && wcwidth( ts->vals[0]))
217 memcpy(&top, ts, sizeof(cchar_t));
218 else
219 memcpy( &top, WACS_HLINE, sizeof(cchar_t));
220 if (bs && wcwidth( bs->vals[0]))
221 memcpy(&bottom, bs, sizeof(cchar_t));
222 else
223 memcpy(&bottom, WACS_HLINE, sizeof(cchar_t));
224 if (tl && wcwidth(tl->vals[0]))
225 memcpy( &topleft, tl, sizeof(cchar_t));
226 else
227 memcpy(&topleft, WACS_ULCORNER, sizeof(cchar_t));
228 if (tr && wcwidth( tr->vals[0]))
229 memcpy(&topright, tr, sizeof(cchar_t));
230 else
231 memcpy(&topright, WACS_URCORNER, sizeof( cchar_t ));
232 if (bl && wcwidth( bl->vals[0]))
233 memcpy(&botleft, bl, sizeof(cchar_t));
234 else
235 memcpy(&botleft, WACS_LLCORNER, sizeof(cchar_t));
236 if (br && wcwidth( br->vals[0]))
237 memcpy(&botright, br, sizeof(cchar_t));
238 else
239 memcpy(&botright, WACS_LRCORNER, sizeof(cchar_t));
240
241 __CTRACE(__CTRACE_INPUT, "wborder_set: window 0x%p\n", win);
242 __CTRACE(__CTRACE_INPUT, "wborder_set: left = %c, 0x%x\n",
243 left.vals[0], left.attributes );
244 __CTRACE(__CTRACE_INPUT, "wborder_set: right = %c, 0x%x\n",
245 right.vals[0], right.attributes );
246 __CTRACE(__CTRACE_INPUT, "wborder_set: top = %c, 0x%x\n",
247 top.vals[0], top.attributes );
248 __CTRACE(__CTRACE_INPUT, "wborder_set: bottom = %c, 0x%x\n",
249 bottom.vals[0], bottom.attributes );
250 __CTRACE(__CTRACE_INPUT, "wborder_set: topleft = %c, 0x%x\n",
251 topleft.vals[0], topleft.attributes );
252 __CTRACE(__CTRACE_INPUT, "wborder_set: topright = %c, 0x%x\n",
253 topright.vals[0], topright.attributes );
254 __CTRACE(__CTRACE_INPUT, "wborder_set: botleft = %c, 0x%x\n",
255 botleft.vals[0], botleft.attributes );
256 __CTRACE(__CTRACE_INPUT, "wborder_set: botright = %c, 0x%x\n",
257 botright.vals[0], botright.attributes );
258
259 /* Merge window attributes */
260 left.attributes |= (left.attributes & __COLOR) ?
261 (win->wattr & ~__COLOR) : win->wattr;
262 left.attributes |= (left.attributes & __COLOR) ?
263 (win->battr & ~__COLOR) : win->battr;
264 right.attributes |= (right.attributes & __COLOR) ?
265 (win->wattr & ~__COLOR) : win->wattr;
266 right.attributes |= (right.attributes & __COLOR) ?
267 (win->battr & ~__COLOR) : win->battr;
268 top.attributes |= (top.attributes & __COLOR) ?
269 (win->wattr & ~__COLOR) : win->wattr;
270 top.attributes |= (top.attributes & __COLOR) ?
271 (win->battr & ~__COLOR) : win->battr;
272 bottom.attributes |= (bottom.attributes & __COLOR) ?
273 (win->wattr & ~__COLOR) : win->wattr;
274 bottom.attributes |= (bottom.attributes & __COLOR) ?
275 (win->battr & ~__COLOR) : win->battr;
276 topleft.attributes |= (topleft.attributes & __COLOR) ?
277 (win->wattr & ~__COLOR) : win->wattr;
278 topleft.attributes |= (topleft.attributes & __COLOR) ?
279 (win->battr & ~__COLOR) : win->battr;
280 topright.attributes |= (topright.attributes & __COLOR) ?
281 (win->wattr & ~__COLOR) : win->wattr;
282 topright.attributes |= (topright.attributes & __COLOR) ?
283 (win->battr & ~__COLOR) : win->battr;
284 botleft.attributes |= (botleft.attributes & __COLOR) ?
285 (win->wattr & ~__COLOR) : win->wattr;
286 botleft.attributes |= (botleft.attributes & __COLOR) ?
287 (win->battr & ~__COLOR) : win->battr;
288 botright.attributes |= (botright.attributes & __COLOR) ?
289 (win->wattr & ~__COLOR) : win->wattr;
290 botright.attributes |= (botright.attributes & __COLOR) ?
291 (win->battr & ~__COLOR) : win->battr;
292
293 endx = win->maxx - 1;
294 endy = win->maxy - 1;
295
296 /* Sides */
297 for (i = 1; i < endy; i++) {
298 /* left border */
299 cw = wcwidth(left.vals[0]);
300 if (cw < 0)
301 cw = 1;
302 for ( j = 0; j < cw; j++ ) {
303 win->alines[i]->line[j].ch = left.vals[0];
304 win->alines[i]->line[j].attr = left.attributes;
305 np = win->alines[i]->line[j].nsp;
306 if (np) {
307 while (np) {
308 tnp = np->next;
309 free(np);
310 np = tnp;
311 }
312 win->alines[i]->line[j].nsp = NULL;
313 }
314 if (j)
315 SET_WCOL(win->alines[i]->line[j], -j);
316 else {
317 SET_WCOL(win->alines[i]->line[j], cw);
318 if (left.elements > 1) {
319 for (k = 1; k < left.elements; k++) {
320 np = malloc(sizeof(nschar_t));
321 if (!np)
322 return ERR;
323 np->ch = left.vals[ k ];
324 np->next = win->alines[i]->line[j].nsp;
325 win->alines[i]->line[j].nsp
326 = np;
327 }
328 }
329 }
330 }
331 for (j = cw; WCOL(win->alines[i]->line[j]) < 0; j++) {
332 __CTRACE(__CTRACE_INPUT,
333 "wborder_set: clean out partial char[%d]", j);
334 win->alines[i]->line[j].ch = ( wchar_t )btowc(win->bch);
335 if (_cursesi_copy_nsp(win->bnsp,
336 &win->alines[i]->line[j]) == ERR)
337 return ERR;
338 SET_WCOL(win->alines[i]->line[j], 1);
339 }
340 /* right border */
341 cw = wcwidth(right.vals[0]);
342 if (cw < 0)
343 cw = 1;
344 pcw = WCOL( win->alines[i]->line[endx - cw]);
345 for ( j = endx - cw + 1; j <= endx; j++ ) {
346 win->alines[i]->line[j].ch = right.vals[0];
347 win->alines[i]->line[j].attr = right.attributes;
348 np = win->alines[i]->line[j].nsp;
349 if (np) {
350 while (np) {
351 tnp = np->next;
352 free(np);
353 np = tnp;
354 }
355 win->alines[i]->line[j].nsp = NULL;
356 }
357 if (j == endx - cw + 1) {
358 SET_WCOL(win->alines[i]->line[j], cw);
359 if (right.elements > 1) {
360 for (k = 1; k < right.elements; k++) {
361 np = malloc(sizeof(nschar_t));
362 if (!np)
363 return ERR;
364 np->ch = right.vals[ k ];
365 np->next = win->alines[i]->line[j].nsp;
366 win->alines[i]->line[j].nsp
367 = np;
368 }
369 }
370 } else
371 SET_WCOL(win->alines[i]->line[j],
372 endx - cw + 1 - j);
373 }
374 if (pcw != 1) {
375 __CTRACE(__CTRACE_INPUT,
376 "wborder_set: clean out partial chars[%d:%d]",
377 endx - cw + pcw, endx - cw);
378 k = pcw < 0 ? endx -cw + pcw : endx - cw;
379 for (j = endx - cw; j >= k; j--) {
380 win->alines[i]->line[j].ch
381 = (wchar_t)btowc(win->bch);
382 if (_cursesi_copy_nsp(win->bnsp,
383 &win->alines[i]->line[j]) == ERR)
384 return ERR;
385 win->alines[i]->line[j].attr = win->battr;
386 SET_WCOL(win->alines[i]->line[j], 1);
387 }
388 }
389 }
390 tlcw = wcwidth(topleft.vals[0]);
391 if (tlcw < 0)
392 tlcw = 1;
393 blcw = wcwidth(botleft.vals[0]);
394 if (blcw < 0)
395 blcw = 1;
396 trcw = wcwidth(topright.vals[0]);
397 if (trcw < 0)
398 trcw = 1;
399 brcw = wcwidth(botright.vals[0]);
400 if (brcw < 0)
401 brcw = 1;
402 /* upper border */
403 cw = wcwidth(top.vals[0]);
404 if (cw < 0)
405 cw = 1;
406 for (i = tlcw; i <= min( endx - cw, endx - trcw); i += cw) {
407 for (j = 0; j < cw; j++) {
408 win->alines[0]->line[i + j].ch = top.vals[0];
409 win->alines[0]->line[i + j].attr = top.attributes;
410 np = win->alines[0]->line[i + j].nsp;
411 if (np) {
412 while (np) {
413 tnp = np->next;
414 free(np);
415 np = tnp;
416 }
417 win->alines[0]->line[i + j].nsp = NULL;
418 }
419 if (j)
420 SET_WCOL(win->alines[ 0 ]->line[ i + j ], -j);
421 else {
422 SET_WCOL(win->alines[ 0 ]->line[ i + j ], cw);
423 if ( top.elements > 1 ) {
424 for (k = 1; k < top.elements; k++) {
425 np = malloc(sizeof(nschar_t));
426 if (!np)
427 return ERR;
428 np->ch = top.vals[k];
429 np->next = win->alines[0]->line[i + j].nsp;
430 win->alines[0]->line[i + j].nsp
431 = np;
432 }
433 }
434 }
435 }
436 }
437 while (i <= endx - trcw) {
438 win->alines[0]->line[i].ch =
439 (wchar_t)btowc((int) win->bch);
440 if (_cursesi_copy_nsp(win->bnsp,
441 &win->alines[0]->line[i]) == ERR)
442 return ERR;
443 win->alines[0]->line[i].attr = win->battr;
444 SET_WCOL(win->alines[0]->line[i], 1);
445 i++;
446 }
447 /* lower border */
448 for (i = blcw; i <= min( endx - cw, endx - brcw); i += cw) {
449 for (j = 0; j < cw; j++) {
450 win->alines[endy]->line[i + j].ch = bottom.vals[0];
451 win->alines[endy]->line[i + j].attr = bottom.attributes;
452 np = win->alines[endy]->line[i + j].nsp;
453 if (np) {
454 while (np) {
455 tnp = np->next;
456 free(np);
457 np = tnp;
458 }
459 win->alines[endy]->line[i + j].nsp = NULL;
460 }
461 if (j)
462 SET_WCOL(win->alines[endy]->line[i + j], -j);
463 else {
464 SET_WCOL(win->alines[endy]->line[i + j], cw);
465 if (bottom.elements > 1) {
466 for (k = 1; k < bottom.elements; k++) {
467 np = malloc(sizeof(nschar_t));
468 if (!np)
469 return ERR;
470 np->ch = bottom.vals[ k ];
471 np->next = win->alines[endy]->line[i + j].nsp;
472 win->alines[endy]->line[i + j].nsp = np;
473 }
474 }
475 }
476 }
477 }
478 while (i <= endx - brcw) {
479 win->alines[endy]->line[i].ch = (wchar_t)btowc((int) win->bch );
480 if (_cursesi_copy_nsp(win->bnsp,
481 &win->alines[endy]->line[i]) == ERR)
482 return ERR;
483 win->alines[endy]->line[i].attr = win->battr;
484 SET_WCOL(win->alines[endy]->line[ i ], 1);
485 i++;
486 }
487
488 /* Corners */
489 if (!(win->maxy == LINES && win->maxx == COLS &&
490 (win->flags & __SCROLLOK) && (win->flags & __SCROLLWIN))) {
491 for (i = 0; i < tlcw; i++) {
492 win->alines[0]->line[i].ch = topleft.vals[0];
493 win->alines[0]->line[i].attr = topleft.attributes;
494 np = win->alines[0]->line[i].nsp;
495 if (np) {
496 while (np) {
497 tnp = np->next;
498 free(np);
499 np = tnp;
500 }
501 win->alines[0]->line[i].nsp = NULL;
502 }
503 if (i)
504 SET_WCOL(win->alines[0]->line[i], -i);
505 else {
506 SET_WCOL(win->alines[0]->line[i], tlcw);
507 if (topleft.elements > 1) {
508 for (k = 1; k < topleft.elements; k++)
509 {
510 np = malloc(sizeof(nschar_t));
511 if (!np)
512 return ERR;
513 np->ch = topleft.vals[k];
514 np->next = win->alines[0]->line[i].nsp;
515 win->alines[0]->line[i].nsp = np;
516 }
517 }
518 }
519 }
520 for (i = endx - trcw + 1; i <= endx; i++) {
521 win->alines[0]->line[i].ch = topright.vals[0];
522 win->alines[0]->line[i].attr = topright.attributes;
523 np = win->alines[0]->line[i].nsp;
524 if (np) {
525 while (np) {
526 tnp = np->next;
527 free(np);
528 np = tnp;
529 }
530 win->alines[0]->line[i].nsp = NULL;
531 }
532 if (i == endx - trcw + 1) {
533 SET_WCOL(win->alines[0]->line[i], trcw);
534 if (topright.elements > 1) {
535 for (k = 1; k < topright.elements;k ++)
536 {
537 np = malloc(sizeof(nschar_t));
538 if (!np)
539 return ERR;
540 np->ch = topright.vals[k];
541 np->next = win->alines[0]->line[i].nsp;
542 win->alines[ 0 ]->line[i].nsp = np;
543 }
544 }
545 } else
546 SET_WCOL(win->alines[0]->line[i],
547 endx - trcw + 1 - i);
548 }
549 for (i = 0; i < blcw; i++) {
550 win->alines[endy]->line[i].ch = botleft.vals[0];
551 win->alines[endy]->line[i].attr = botleft.attributes;
552 np = win->alines[ endy ]->line[i].nsp;
553 if (np) {
554 while (np) {
555 tnp = np->next;
556 free(np);
557 np = tnp;
558 }
559 win->alines[endy]->line[i].nsp = NULL;
560 }
561 if (i)
562 SET_WCOL(win->alines[endy]->line[i], -i);
563 else {
564 SET_WCOL(win->alines[endy]->line[i], blcw);
565 if (botleft.elements > 1) {
566 for (k = 1; k < botleft.elements; k++) {
567 np = malloc(sizeof(nschar_t));
568 if (!np)
569 return ERR;
570 np->ch = botleft.vals[ k ];
571 np->next = win->alines[endy]->line[i].nsp;
572 win->alines[endy]->line[i].nsp = np;
573 }
574 }
575 }
576 }
577 for (i = endx - brcw + 1; i <= endx; i++) {
578 win->alines[endy]->line[i].ch = botright.vals[0];
579 win->alines[endy]->line[i].attr = botright.attributes;
580 np = win->alines[endy]->line[i].nsp;
581 if (np) {
582 while (np) {
583 tnp = np->next;
584 free(np);
585 np = tnp;
586 }
587 win->alines[endy]->line[i].nsp = NULL;
588 }
589 if (i == endx - brcw + 1) {
590 SET_WCOL(win->alines[endy]->line[i], brcw);
591 if (botright.elements > 1) {
592 for (k = 1; k < botright.elements; k++){
593 np = malloc(sizeof(nschar_t));
594 if (!np)
595 return ERR;
596 np->ch = botright.vals[k];
597 np->next = win->alines[endy]->line[i].nsp;
598 win->alines[endy]->line[i].nsp = np;
599 }
600 }
601 } else
602 SET_WCOL(win->alines[endy]->line[i],
603 endx - brcw + 1 - i);
604 }
605 }
606 __touchwin(win);
607 return OK;
608 #endif /* HAVE_WCHAR */
609 }
610