Annotation of src/usr.bin/tmux/screen-write.c, Revision 1.157
1.157 ! nicm 1: /* $OpenBSD: screen-write.c,v 1.156 2019/07/08 11:38:14 nicm Exp $ */
1.1 nicm 2:
3: /*
1.84 nicm 4: * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1 nicm 5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15: * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18:
19: #include <sys/types.h>
20:
1.56 nicm 21: #include <stdlib.h>
1.1 nicm 22: #include <string.h>
23:
24: #include "tmux.h"
25:
1.87 nicm 26: static void screen_write_initctx(struct screen_write_ctx *,
27: struct tty_ctx *);
1.109 nicm 28: static void screen_write_collect_clear(struct screen_write_ctx *, u_int,
29: u_int);
30: static void screen_write_collect_scroll(struct screen_write_ctx *);
1.111 nicm 31: static void screen_write_collect_flush(struct screen_write_ctx *, int);
1.87 nicm 32:
1.89 nicm 33: static int screen_write_overwrite(struct screen_write_ctx *,
34: struct grid_cell *, u_int);
1.104 nicm 35: static const struct grid_cell *screen_write_combine(struct screen_write_ctx *,
36: const struct utf8_data *, u_int *);
1.1 nicm 37:
1.88 nicm 38: static const struct grid_cell screen_write_pad_cell = {
1.155 nicm 39: { { 0 }, 0, 0, 0 }, 0, GRID_FLAG_PADDING, 0, 8, 8
1.88 nicm 40: };
41:
1.109 nicm 42: struct screen_write_collect_item {
43: u_int x;
1.118 nicm 44: int wrapped;
1.109 nicm 45:
46: u_int used;
47: char data[256];
48:
49: struct grid_cell gc;
50:
1.126 nicm 51: TAILQ_ENTRY(screen_write_collect_item) entry;
1.109 nicm 52: };
53: struct screen_write_collect_line {
54: TAILQ_HEAD(, screen_write_collect_item) items;
55: };
1.92 nicm 56:
1.139 nicm 57: static void
58: screen_write_offset_timer(__unused int fd, __unused short events, void *data)
59: {
60: struct window *w = data;
61:
62: tty_update_window_offset(w);
63: }
64:
65: /* Set cursor position. */
66: static void
67: screen_write_set_cursor(struct screen_write_ctx *ctx, int cx, int cy)
68: {
69: struct window_pane *wp = ctx->wp;
70: struct window *w;
71: struct screen *s = ctx->s;
72: struct timeval tv = { .tv_usec = 10000 };
73:
74: if (cx != -1 && (u_int)cx == s->cx && cy != -1 && (u_int)cy == s->cy)
75: return;
76:
1.144 nicm 77: if (cx != -1) {
1.145 nicm 78: if ((u_int)cx > screen_size_x(s)) /* allow last column */
1.144 nicm 79: cx = screen_size_x(s) - 1;
1.139 nicm 80: s->cx = cx;
1.144 nicm 81: }
82: if (cy != -1) {
83: if ((u_int)cy > screen_size_y(s) - 1)
84: cy = screen_size_y(s) - 1;
1.139 nicm 85: s->cy = cy;
1.144 nicm 86: }
1.139 nicm 87:
88: if (wp == NULL)
89: return;
90: w = wp->window;
91:
92: if (!event_initialized(&w->offset_timer))
93: evtimer_set(&w->offset_timer, screen_write_offset_timer, w);
94: if (!evtimer_pending(&w->offset_timer, NULL))
95: evtimer_add(&w->offset_timer, &tv);
96: }
97:
1.92 nicm 98: /* Initialize writing with a window. */
1.1 nicm 99: void
1.71 nicm 100: screen_write_start(struct screen_write_ctx *ctx, struct window_pane *wp,
101: struct screen *s)
1.1 nicm 102: {
1.139 nicm 103: char tmp[32];
1.109 nicm 104: u_int y;
105:
106: memset(ctx, 0, sizeof *ctx);
1.92 nicm 107:
1.1 nicm 108: ctx->wp = wp;
109: if (wp != NULL && s == NULL)
110: ctx->s = wp->screen;
111: else
112: ctx->s = s;
1.92 nicm 113:
1.109 nicm 114: ctx->list = xcalloc(screen_size_y(ctx->s), sizeof *ctx->list);
115: for (y = 0; y < screen_size_y(ctx->s); y++)
116: TAILQ_INIT(&ctx->list[y].items);
117: ctx->item = xcalloc(1, sizeof *ctx->item);
1.92 nicm 118:
1.122 nicm 119: ctx->scrolled = 0;
120: ctx->bg = 8;
121:
1.139 nicm 122: if (wp != NULL) {
123: snprintf(tmp, sizeof tmp, "pane %%%u (at %u,%u)", wp->id,
124: wp->xoff, wp->yoff);
125: }
1.92 nicm 126: log_debug("%s: size %ux%u, %s", __func__, screen_size_x(ctx->s),
1.108 nicm 127: screen_size_y(ctx->s), wp == NULL ? "no pane" : tmp);
1.1 nicm 128: }
129:
130: /* Finish writing. */
131: void
1.92 nicm 132: screen_write_stop(struct screen_write_ctx *ctx)
133: {
1.109 nicm 134: screen_write_collect_end(ctx);
1.111 nicm 135: screen_write_collect_flush(ctx, 0);
1.92 nicm 136:
1.109 nicm 137: log_debug("%s: %u cells (%u written, %u skipped)", __func__,
138: ctx->cells, ctx->written, ctx->skipped);
1.92 nicm 139:
1.109 nicm 140: free(ctx->item);
141: free(ctx->list); /* flush will have emptied */
1.52 nicm 142: }
143:
144: /* Reset screen state. */
145: void
146: screen_write_reset(struct screen_write_ctx *ctx)
147: {
1.61 nicm 148: struct screen *s = ctx->s;
1.52 nicm 149:
1.61 nicm 150: screen_reset_tabs(s);
151: screen_write_scrollregion(ctx, 0, screen_size_y(s) - 1);
1.63 nicm 152:
1.141 nicm 153: s->mode = MODE_CURSOR | MODE_WRAP;
1.52 nicm 154:
1.99 nicm 155: screen_write_clearscreen(ctx, 8);
1.144 nicm 156: screen_write_set_cursor(ctx, 0, 0);
1.1 nicm 157: }
158:
159: /* Write character. */
160: void
1.86 nicm 161: screen_write_putc(struct screen_write_ctx *ctx, const struct grid_cell *gcp,
1.69 nicm 162: u_char ch)
1.1 nicm 163: {
1.86 nicm 164: struct grid_cell gc;
165:
166: memcpy(&gc, gcp, sizeof gc);
167:
168: utf8_set(&gc.data, ch);
169: screen_write_cell(ctx, &gc);
1.1 nicm 170: }
171:
1.2 nicm 172: /* Calculate string length. */
1.71 nicm 173: size_t
1.75 nicm 174: screen_write_strlen(const char *fmt, ...)
1.2 nicm 175: {
1.36 nicm 176: va_list ap;
177: char *msg;
1.76 nicm 178: struct utf8_data ud;
1.36 nicm 179: u_char *ptr;
180: size_t left, size = 0;
1.79 nicm 181: enum utf8_state more;
1.2 nicm 182:
183: va_start(ap, fmt);
184: xvasprintf(&msg, fmt, ap);
185: va_end(ap);
186:
187: ptr = msg;
188: while (*ptr != '\0') {
1.79 nicm 189: if (*ptr > 0x7f && utf8_open(&ud, *ptr) == UTF8_MORE) {
1.36 nicm 190: ptr++;
1.2 nicm 191:
192: left = strlen(ptr);
1.77 nicm 193: if (left < (size_t)ud.size - 1)
1.36 nicm 194: break;
1.79 nicm 195: while ((more = utf8_append(&ud, *ptr)) == UTF8_MORE)
1.2 nicm 196: ptr++;
1.36 nicm 197: ptr++;
198:
1.79 nicm 199: if (more == UTF8_DONE)
1.78 nicm 200: size += ud.width;
1.2 nicm 201: } else {
1.75 nicm 202: if (*ptr > 0x1f && *ptr < 0x7f)
203: size++;
1.2 nicm 204: ptr++;
205: }
1.7 ray 206: }
1.2 nicm 207:
1.56 nicm 208: free(msg);
1.2 nicm 209: return (size);
210: }
211:
1.3 nicm 212: /* Write simple string (no UTF-8 or maximum length). */
1.71 nicm 213: void
1.86 nicm 214: screen_write_puts(struct screen_write_ctx *ctx, const struct grid_cell *gcp,
1.71 nicm 215: const char *fmt, ...)
1.1 nicm 216: {
217: va_list ap;
218:
219: va_start(ap, fmt);
1.86 nicm 220: screen_write_vnputs(ctx, -1, gcp, fmt, ap);
1.2 nicm 221: va_end(ap);
222: }
223:
224: /* Write string with length limit (-1 for unlimited). */
1.71 nicm 225: void
226: screen_write_nputs(struct screen_write_ctx *ctx, ssize_t maxlen,
1.86 nicm 227: const struct grid_cell *gcp, const char *fmt, ...)
1.2 nicm 228: {
229: va_list ap;
230:
231: va_start(ap, fmt);
1.86 nicm 232: screen_write_vnputs(ctx, maxlen, gcp, fmt, ap);
1.2 nicm 233: va_end(ap);
234: }
235:
236: void
1.3 nicm 237: screen_write_vnputs(struct screen_write_ctx *ctx, ssize_t maxlen,
1.86 nicm 238: const struct grid_cell *gcp, const char *fmt, va_list ap)
1.2 nicm 239: {
1.86 nicm 240: struct grid_cell gc;
241: struct utf8_data *ud = &gc.data;
1.36 nicm 242: char *msg;
243: u_char *ptr;
244: size_t left, size = 0;
1.79 nicm 245: enum utf8_state more;
1.2 nicm 246:
1.86 nicm 247: memcpy(&gc, gcp, sizeof gc);
1.1 nicm 248: xvasprintf(&msg, fmt, ap);
249:
1.2 nicm 250: ptr = msg;
251: while (*ptr != '\0') {
1.86 nicm 252: if (*ptr > 0x7f && utf8_open(ud, *ptr) == UTF8_MORE) {
1.36 nicm 253: ptr++;
1.2 nicm 254:
255: left = strlen(ptr);
1.86 nicm 256: if (left < (size_t)ud->size - 1)
1.36 nicm 257: break;
1.86 nicm 258: while ((more = utf8_append(ud, *ptr)) == UTF8_MORE)
1.2 nicm 259: ptr++;
1.36 nicm 260: ptr++;
1.7 ray 261:
1.86 nicm 262: if (more != UTF8_DONE)
263: continue;
264: if (maxlen > 0 && size + ud->width > (size_t)maxlen) {
265: while (size < (size_t)maxlen) {
266: screen_write_putc(ctx, &gc, ' ');
267: size++;
1.2 nicm 268: }
1.86 nicm 269: break;
1.2 nicm 270: }
1.86 nicm 271: size += ud->width;
272: screen_write_cell(ctx, &gc);
1.2 nicm 273: } else {
1.86 nicm 274: if (maxlen > 0 && size + 1 > (size_t)maxlen)
1.2 nicm 275: break;
276:
1.57 nicm 277: if (*ptr == '\001')
1.86 nicm 278: gc.attr ^= GRID_ATTR_CHARSET;
1.75 nicm 279: else if (*ptr > 0x1f && *ptr < 0x7f) {
1.57 nicm 280: size++;
1.86 nicm 281: screen_write_putc(ctx, &gc, *ptr);
1.75 nicm 282: }
1.24 nicm 283: ptr++;
284: }
285: }
286:
1.56 nicm 287: free(msg);
1.1 nicm 288: }
289:
1.132 nicm 290: /* Copy from another screen. Assumes target region is big enough. */
1.1 nicm 291: void
1.95 nicm 292: screen_write_copy(struct screen_write_ctx *ctx, struct screen *src, u_int px,
1.132 nicm 293: u_int py, u_int nx, u_int ny, bitstr_t *mbs, const struct grid_cell *mgc)
1.1 nicm 294: {
295: struct screen *s = ctx->s;
296: struct grid *gd = src->grid;
1.77 nicm 297: struct grid_cell gc;
1.102 nicm 298: u_int xx, yy, cx, cy, b;
1.1 nicm 299:
1.125 nicm 300: if (nx == 0 || ny == 0)
301: return;
302:
1.1 nicm 303: cx = s->cx;
304: cy = s->cy;
1.96 nicm 305:
1.1 nicm 306: for (yy = py; yy < py + ny; yy++) {
1.96 nicm 307: for (xx = px; xx < px + nx; xx++) {
308: grid_get_cell(gd, xx, yy, &gc);
1.132 nicm 309: if (mbs != NULL) {
1.102 nicm 310: b = (yy * screen_size_x(src)) + xx;
1.132 nicm 311: if (bit_test(mbs, b)) {
312: gc.attr = mgc->attr;
313: gc.fg = mgc->fg;
314: gc.bg = mgc->bg;
1.102 nicm 315: }
316: }
1.135 nicm 317: if (xx + gc.data.width <= px + nx)
318: screen_write_cell(ctx, &gc);
1.96 nicm 319: }
1.132 nicm 320: cy++;
1.144 nicm 321: screen_write_set_cursor(ctx, cx, cy);
1.132 nicm 322: }
323: }
324:
325: /*
326: * Copy from another screen but without the selection stuff. Also assumes the
1.150 nicm 327: * target region is already big enough.
1.132 nicm 328: */
329: void
330: screen_write_fast_copy(struct screen_write_ctx *ctx, struct screen *src,
331: u_int px, u_int py, u_int nx, u_int ny)
332: {
333: struct screen *s = ctx->s;
334: struct grid *gd = src->grid;
335: struct grid_cell gc;
336: u_int xx, yy, cx, cy;
1.96 nicm 337:
1.132 nicm 338: if (nx == 0 || ny == 0)
339: return;
340:
341: cy = s->cy;
342: for (yy = py; yy < py + ny; yy++) {
1.134 nicm 343: if (yy >= gd->hsize + gd->sy)
344: break;
1.132 nicm 345: cx = s->cx;
346: for (xx = px; xx < px + nx; xx++) {
1.137 nicm 347: if (xx >= grid_get_line(gd, yy)->cellsize)
1.132 nicm 348: break;
349: grid_get_cell(gd, xx, yy, &gc);
1.135 nicm 350: if (xx + gc.data.width > px + nx)
351: break;
1.150 nicm 352: grid_view_set_cell(ctx->s->grid, cx, cy, &gc);
1.132 nicm 353: cx++;
354: }
1.1 nicm 355: cy++;
1.125 nicm 356: }
357: }
358:
1.129 nicm 359: /* Draw a horizontal line on screen. */
1.125 nicm 360: void
1.129 nicm 361: screen_write_hline(struct screen_write_ctx *ctx, u_int nx, int left, int right)
1.125 nicm 362: {
363: struct screen *s = ctx->s;
364: struct grid_cell gc;
365: u_int cx, cy, i;
366:
367: cx = s->cx;
368: cy = s->cy;
369:
370: memcpy(&gc, &grid_default_cell, sizeof gc);
371: gc.attr |= GRID_ATTR_CHARSET;
372:
373: screen_write_putc(ctx, &gc, left ? 't' : 'q');
374: for (i = 1; i < nx - 1; i++)
375: screen_write_putc(ctx, &gc, 'q');
376: screen_write_putc(ctx, &gc, right ? 'u' : 'q');
1.129 nicm 377:
1.144 nicm 378: screen_write_set_cursor(ctx, cx, cy);
1.129 nicm 379: }
380:
381: /* Draw a horizontal line on screen. */
382: void
1.130 nicm 383: screen_write_vline(struct screen_write_ctx *ctx, u_int ny, int top, int bottom)
1.129 nicm 384: {
385: struct screen *s = ctx->s;
386: struct grid_cell gc;
387: u_int cx, cy, i;
388:
389: cx = s->cx;
390: cy = s->cy;
391:
392: memcpy(&gc, &grid_default_cell, sizeof gc);
393: gc.attr |= GRID_ATTR_CHARSET;
394:
395: screen_write_putc(ctx, &gc, top ? 'w' : 'x');
396: for (i = 1; i < ny - 1; i++) {
1.144 nicm 397: screen_write_set_cursor(ctx, cx, cy + i);
1.129 nicm 398: screen_write_putc(ctx, &gc, 'x');
399: }
1.144 nicm 400: screen_write_set_cursor(ctx, cx, cy + ny - 1);
1.129 nicm 401: screen_write_putc(ctx, &gc, bottom ? 'v' : 'x');
1.152 nicm 402:
403: screen_write_set_cursor(ctx, cx, cy);
404: }
405:
406: /* Draw a menu on screen. */
407: void
408: screen_write_menu(struct screen_write_ctx *ctx, struct menu *menu, int choice)
409: {
410: struct screen *s = ctx->s;
411: struct grid_cell gc;
412: u_int cx, cy, i, j;
1.153 nicm 413: const char *name;
1.152 nicm 414:
415: cx = s->cx;
416: cy = s->cy;
417:
418: memcpy(&gc, &grid_default_cell, sizeof gc);
419:
420: screen_write_box(ctx, menu->width + 4, menu->count + 2);
421: screen_write_cursormove(ctx, cx + 2, cy, 0);
422: format_draw(ctx, &gc, menu->width, menu->title, NULL);
423:
424: for (i = 0; i < menu->count; i++) {
1.153 nicm 425: name = menu->items[i].name;
426: if (name == NULL) {
1.152 nicm 427: screen_write_cursormove(ctx, cx, cy + 1 + i, 0);
428: screen_write_hline(ctx, menu->width + 4, 1, 1);
429: } else {
1.153 nicm 430: if (choice >= 0 && i == (u_int)choice && *name != '-')
1.152 nicm 431: gc.attr |= GRID_ATTR_REVERSE;
432: screen_write_cursormove(ctx, cx + 2, cy + 1 + i, 0);
433: for (j = 0; j < menu->width; j++)
434: screen_write_putc(ctx, &gc, ' ');
435: screen_write_cursormove(ctx, cx + 2, cy + 1 + i, 0);
1.153 nicm 436: if (*name == '-') {
437: name++;
438: gc.attr |= GRID_ATTR_DIM;
439: format_draw(ctx, &gc, menu->width, name, NULL);
440: gc.attr &= ~GRID_ATTR_DIM;
441: } else
442: format_draw(ctx, &gc, menu->width, name, NULL);
1.152 nicm 443: if (choice >= 0 && i == (u_int)choice)
444: gc.attr &= ~GRID_ATTR_REVERSE;
445: }
446: }
1.125 nicm 447:
1.144 nicm 448: screen_write_set_cursor(ctx, cx, cy);
1.125 nicm 449: }
450:
451: /* Draw a box on screen. */
452: void
453: screen_write_box(struct screen_write_ctx *ctx, u_int nx, u_int ny)
454: {
455: struct screen *s = ctx->s;
456: struct grid_cell gc;
457: u_int cx, cy, i;
458:
459: cx = s->cx;
460: cy = s->cy;
461:
462: memcpy(&gc, &grid_default_cell, sizeof gc);
463: gc.attr |= GRID_ATTR_CHARSET;
464:
465: screen_write_putc(ctx, &gc, 'l');
466: for (i = 1; i < nx - 1; i++)
467: screen_write_putc(ctx, &gc, 'q');
468: screen_write_putc(ctx, &gc, 'k');
469:
1.144 nicm 470: screen_write_set_cursor(ctx, cx, cy + ny - 1);
1.125 nicm 471: screen_write_putc(ctx, &gc, 'm');
472: for (i = 1; i < nx - 1; i++)
473: screen_write_putc(ctx, &gc, 'q');
474: screen_write_putc(ctx, &gc, 'j');
475:
476: for (i = 1; i < ny - 1; i++) {
1.144 nicm 477: screen_write_set_cursor(ctx, cx, cy + i);
1.125 nicm 478: screen_write_putc(ctx, &gc, 'x');
479: }
480: for (i = 1; i < ny - 1; i++) {
1.144 nicm 481: screen_write_set_cursor(ctx, cx + nx - 1, cy + i);
1.125 nicm 482: screen_write_putc(ctx, &gc, 'x');
483: }
484:
1.144 nicm 485: screen_write_set_cursor(ctx, cx, cy);
1.125 nicm 486: }
487:
1.132 nicm 488: /*
489: * Write a preview version of a window. Assumes target area is big enough and
490: * already cleared.
491: */
1.125 nicm 492: void
493: screen_write_preview(struct screen_write_ctx *ctx, struct screen *src, u_int nx,
494: u_int ny)
495: {
496: struct screen *s = ctx->s;
497: struct grid_cell gc;
498: u_int cx, cy, px, py;
499:
500: cx = s->cx;
501: cy = s->cy;
502:
503: /*
504: * If the cursor is on, pick the area around the cursor, otherwise use
505: * the top left.
506: */
507: if (src->mode & MODE_CURSOR) {
508: px = src->cx;
509: if (px < nx / 3)
510: px = 0;
511: else
512: px = px - nx / 3;
513: if (px + nx > screen_size_x(src)) {
514: if (nx > screen_size_x(src))
515: px = 0;
516: else
517: px = screen_size_x(src) - nx;
518: }
519: py = src->cy;
520: if (py < ny / 3)
521: py = 0;
522: else
523: py = py - ny / 3;
524: if (py + ny > screen_size_y(src)) {
525: if (ny > screen_size_y(src))
526: py = 0;
527: else
528: py = screen_size_y(src) - ny;
529: }
530: } else {
531: px = 0;
532: py = 0;
533: }
534:
1.132 nicm 535: screen_write_fast_copy(ctx, src, px, src->grid->hsize + py, nx, ny);
1.125 nicm 536:
537: if (src->mode & MODE_CURSOR) {
538: grid_view_get_cell(src->grid, src->cx, src->cy, &gc);
539: gc.attr |= GRID_ATTR_REVERSE;
1.144 nicm 540: screen_write_set_cursor(ctx, cx + (src->cx - px),
1.125 nicm 541: cy + (src->cy - py));
542: screen_write_cell(ctx, &gc);
1.1 nicm 543: }
544: }
545:
1.17 nicm 546: /* Set up context for TTY command. */
1.87 nicm 547: static void
548: screen_write_initctx(struct screen_write_ctx *ctx, struct tty_ctx *ttyctx)
1.1 nicm 549: {
1.87 nicm 550: struct screen *s = ctx->s;
1.123 nicm 551:
552: memset(ttyctx, 0, sizeof *ttyctx);
1.1 nicm 553:
1.17 nicm 554: ttyctx->wp = ctx->wp;
1.1 nicm 555:
1.17 nicm 556: ttyctx->ocx = s->cx;
557: ttyctx->ocy = s->cy;
558:
559: ttyctx->orlower = s->rlower;
560: ttyctx->orupper = s->rupper;
1.87 nicm 561: }
1.31 nicm 562:
1.61 nicm 563: /* Set a mode. */
564: void
565: screen_write_mode_set(struct screen_write_ctx *ctx, int mode)
566: {
567: struct screen *s = ctx->s;
568:
569: s->mode |= mode;
570: }
571:
572: /* Clear a mode. */
573: void
574: screen_write_mode_clear(struct screen_write_ctx *ctx, int mode)
575: {
576: struct screen *s = ctx->s;
577:
578: s->mode &= ~mode;
579: }
580:
1.1 nicm 581: /* Cursor up by ny. */
582: void
583: screen_write_cursorup(struct screen_write_ctx *ctx, u_int ny)
584: {
585: struct screen *s = ctx->s;
1.139 nicm 586: u_int cx = s->cx, cy = s->cy;
1.1 nicm 587:
588: if (ny == 0)
589: ny = 1;
590:
1.139 nicm 591: if (cy < s->rupper) {
1.12 nicm 592: /* Above region. */
1.139 nicm 593: if (ny > cy)
594: ny = cy;
1.12 nicm 595: } else {
596: /* Below region. */
1.139 nicm 597: if (ny > cy - s->rupper)
598: ny = cy - s->rupper;
1.12 nicm 599: }
1.139 nicm 600: if (cx == screen_size_x(s))
601: cx--;
602:
603: cy -= ny;
1.1 nicm 604:
1.139 nicm 605: screen_write_set_cursor(ctx, cx, cy);
1.1 nicm 606: }
607:
608: /* Cursor down by ny. */
609: void
610: screen_write_cursordown(struct screen_write_ctx *ctx, u_int ny)
611: {
612: struct screen *s = ctx->s;
1.139 nicm 613: u_int cx = s->cx, cy = s->cy;
1.1 nicm 614:
615: if (ny == 0)
616: ny = 1;
617:
1.139 nicm 618: if (cy > s->rlower) {
1.12 nicm 619: /* Below region. */
1.139 nicm 620: if (ny > screen_size_y(s) - 1 - cy)
621: ny = screen_size_y(s) - 1 - cy;
1.12 nicm 622: } else {
623: /* Above region. */
1.139 nicm 624: if (ny > s->rlower - cy)
625: ny = s->rlower - cy;
1.12 nicm 626: }
1.139 nicm 627: if (cx == screen_size_x(s))
628: cx--;
629: else if (ny == 0)
1.1 nicm 630: return;
631:
1.139 nicm 632: cy += ny;
633:
634: screen_write_set_cursor(ctx, cx, cy);
1.1 nicm 635: }
636:
1.101 nicm 637: /* Cursor right by nx. */
1.1 nicm 638: void
639: screen_write_cursorright(struct screen_write_ctx *ctx, u_int nx)
640: {
641: struct screen *s = ctx->s;
1.139 nicm 642: u_int cx = s->cx, cy = s->cy;
1.1 nicm 643:
644: if (nx == 0)
645: nx = 1;
646:
1.139 nicm 647: if (nx > screen_size_x(s) - 1 - cx)
648: nx = screen_size_x(s) - 1 - cx;
1.1 nicm 649: if (nx == 0)
650: return;
651:
1.139 nicm 652: cx += nx;
653:
654: screen_write_set_cursor(ctx, cx, cy);
1.1 nicm 655: }
656:
657: /* Cursor left by nx. */
658: void
659: screen_write_cursorleft(struct screen_write_ctx *ctx, u_int nx)
660: {
661: struct screen *s = ctx->s;
1.139 nicm 662: u_int cx = s->cx, cy = s->cy;
1.1 nicm 663:
664: if (nx == 0)
665: nx = 1;
666:
1.139 nicm 667: if (nx > cx)
668: nx = cx;
1.1 nicm 669: if (nx == 0)
670: return;
671:
1.139 nicm 672: cx -= nx;
673:
674: screen_write_set_cursor(ctx, cx, cy);
1.5 nicm 675: }
676:
1.29 nicm 677: /* Backspace; cursor left unless at start of wrapped line when can move up. */
678: void
679: screen_write_backspace(struct screen_write_ctx *ctx)
680: {
681: struct screen *s = ctx->s;
682: struct grid_line *gl;
1.139 nicm 683: u_int cx = s->cx, cy = s->cy;
1.29 nicm 684:
1.139 nicm 685: if (cx == 0) {
686: if (cy == 0)
1.29 nicm 687: return;
1.139 nicm 688: gl = grid_get_line(s->grid, s->grid->hsize + cy - 1);
1.29 nicm 689: if (gl->flags & GRID_LINE_WRAPPED) {
1.139 nicm 690: cy--;
691: cx = screen_size_x(s) - 1;
1.29 nicm 692: }
693: } else
1.139 nicm 694: cx--;
695:
696: screen_write_set_cursor(ctx, cx, cy);
1.29 nicm 697: }
698:
1.5 nicm 699: /* VT100 alignment test. */
700: void
701: screen_write_alignmenttest(struct screen_write_ctx *ctx)
702: {
703: struct screen *s = ctx->s;
1.17 nicm 704: struct tty_ctx ttyctx;
1.5 nicm 705: struct grid_cell gc;
706: u_int xx, yy;
707:
708: memcpy(&gc, &grid_default_cell, sizeof gc);
1.77 nicm 709: utf8_set(&gc.data, 'E');
1.7 ray 710:
1.5 nicm 711: for (yy = 0; yy < screen_size_y(s); yy++) {
712: for (xx = 0; xx < screen_size_x(s); xx++)
713: grid_view_set_cell(s->grid, xx, yy, &gc);
714: }
1.7 ray 715:
1.139 nicm 716: screen_write_set_cursor(ctx, 0, 0);
1.5 nicm 717:
718: s->rupper = 0;
719: s->rlower = screen_size_y(s) - 1;
1.143 nicm 720:
721: screen_write_initctx(ctx, &ttyctx);
1.5 nicm 722:
1.109 nicm 723: screen_write_collect_clear(ctx, 0, screen_size_y(s) - 1);
1.17 nicm 724: tty_write(tty_cmd_alignmenttest, &ttyctx);
1.1 nicm 725: }
726:
727: /* Insert nx characters. */
728: void
1.99 nicm 729: screen_write_insertcharacter(struct screen_write_ctx *ctx, u_int nx, u_int bg)
1.1 nicm 730: {
731: struct screen *s = ctx->s;
1.17 nicm 732: struct tty_ctx ttyctx;
1.1 nicm 733:
734: if (nx == 0)
735: nx = 1;
736:
1.9 nicm 737: if (nx > screen_size_x(s) - s->cx)
738: nx = screen_size_x(s) - s->cx;
1.1 nicm 739: if (nx == 0)
740: return;
741:
1.107 nicm 742: if (s->cx > screen_size_x(s) - 1)
743: return;
744:
1.87 nicm 745: screen_write_initctx(ctx, &ttyctx);
1.107 nicm 746: ttyctx.bg = bg;
1.1 nicm 747:
1.107 nicm 748: grid_view_insert_cells(s->grid, s->cx, s->cy, nx, bg);
1.1 nicm 749:
1.111 nicm 750: screen_write_collect_flush(ctx, 0);
1.17 nicm 751: ttyctx.num = nx;
752: tty_write(tty_cmd_insertcharacter, &ttyctx);
1.1 nicm 753: }
754:
755: /* Delete nx characters. */
756: void
1.99 nicm 757: screen_write_deletecharacter(struct screen_write_ctx *ctx, u_int nx, u_int bg)
1.1 nicm 758: {
759: struct screen *s = ctx->s;
1.17 nicm 760: struct tty_ctx ttyctx;
1.1 nicm 761:
762: if (nx == 0)
763: nx = 1;
764:
1.9 nicm 765: if (nx > screen_size_x(s) - s->cx)
766: nx = screen_size_x(s) - s->cx;
1.1 nicm 767: if (nx == 0)
768: return;
769:
1.107 nicm 770: if (s->cx > screen_size_x(s) - 1)
771: return;
772:
1.87 nicm 773: screen_write_initctx(ctx, &ttyctx);
1.107 nicm 774: ttyctx.bg = bg;
1.1 nicm 775:
1.107 nicm 776: grid_view_delete_cells(s->grid, s->cx, s->cy, nx, bg);
1.1 nicm 777:
1.111 nicm 778: screen_write_collect_flush(ctx, 0);
1.17 nicm 779: ttyctx.num = nx;
780: tty_write(tty_cmd_deletecharacter, &ttyctx);
1.59 nicm 781: }
782:
783: /* Clear nx characters. */
784: void
1.121 nicm 785: screen_write_clearcharacter(struct screen_write_ctx *ctx, u_int nx, u_int bg)
1.59 nicm 786: {
787: struct screen *s = ctx->s;
788: struct tty_ctx ttyctx;
789:
790: if (nx == 0)
791: nx = 1;
792:
793: if (nx > screen_size_x(s) - s->cx)
794: nx = screen_size_x(s) - s->cx;
795: if (nx == 0)
796: return;
797:
1.107 nicm 798: if (s->cx > screen_size_x(s) - 1)
799: return;
800:
1.87 nicm 801: screen_write_initctx(ctx, &ttyctx);
1.121 nicm 802: ttyctx.bg = bg;
1.59 nicm 803:
1.124 nicm 804: grid_view_clear(s->grid, s->cx, s->cy, nx, 1, bg);
1.59 nicm 805:
1.111 nicm 806: screen_write_collect_flush(ctx, 0);
1.59 nicm 807: ttyctx.num = nx;
808: tty_write(tty_cmd_clearcharacter, &ttyctx);
1.1 nicm 809: }
810:
811: /* Insert ny lines. */
812: void
1.99 nicm 813: screen_write_insertline(struct screen_write_ctx *ctx, u_int ny, u_int bg)
1.1 nicm 814: {
815: struct screen *s = ctx->s;
1.107 nicm 816: struct grid *gd = s->grid;
1.17 nicm 817: struct tty_ctx ttyctx;
1.1 nicm 818:
819: if (ny == 0)
820: ny = 1;
821:
1.11 nicm 822: if (s->cy < s->rupper || s->cy > s->rlower) {
823: if (ny > screen_size_y(s) - s->cy)
824: ny = screen_size_y(s) - s->cy;
825: if (ny == 0)
826: return;
827:
1.87 nicm 828: screen_write_initctx(ctx, &ttyctx);
1.107 nicm 829: ttyctx.bg = bg;
1.11 nicm 830:
1.107 nicm 831: grid_view_insert_lines(gd, s->cy, ny, bg);
1.11 nicm 832:
1.111 nicm 833: screen_write_collect_flush(ctx, 0);
1.17 nicm 834: ttyctx.num = ny;
835: tty_write(tty_cmd_insertline, &ttyctx);
1.11 nicm 836: return;
837: }
838:
839: if (ny > s->rlower + 1 - s->cy)
840: ny = s->rlower + 1 - s->cy;
1.1 nicm 841: if (ny == 0)
842: return;
1.41 nicm 843:
1.87 nicm 844: screen_write_initctx(ctx, &ttyctx);
1.107 nicm 845: ttyctx.bg = bg;
1.1 nicm 846:
847: if (s->cy < s->rupper || s->cy > s->rlower)
1.107 nicm 848: grid_view_insert_lines(gd, s->cy, ny, bg);
849: else
850: grid_view_insert_lines_region(gd, s->rlower, s->cy, ny, bg);
1.1 nicm 851:
1.111 nicm 852: screen_write_collect_flush(ctx, 0);
1.17 nicm 853: ttyctx.num = ny;
854: tty_write(tty_cmd_insertline, &ttyctx);
1.1 nicm 855: }
856:
857: /* Delete ny lines. */
858: void
1.99 nicm 859: screen_write_deleteline(struct screen_write_ctx *ctx, u_int ny, u_int bg)
1.1 nicm 860: {
861: struct screen *s = ctx->s;
1.107 nicm 862: struct grid *gd = s->grid;
1.17 nicm 863: struct tty_ctx ttyctx;
1.1 nicm 864:
865: if (ny == 0)
866: ny = 1;
867:
1.11 nicm 868: if (s->cy < s->rupper || s->cy > s->rlower) {
869: if (ny > screen_size_y(s) - s->cy)
870: ny = screen_size_y(s) - s->cy;
871: if (ny == 0)
872: return;
873:
1.87 nicm 874: screen_write_initctx(ctx, &ttyctx);
1.107 nicm 875: ttyctx.bg = bg;
1.11 nicm 876:
1.107 nicm 877: grid_view_delete_lines(gd, s->cy, ny, bg);
1.11 nicm 878:
1.111 nicm 879: screen_write_collect_flush(ctx, 0);
1.17 nicm 880: ttyctx.num = ny;
881: tty_write(tty_cmd_deleteline, &ttyctx);
1.11 nicm 882: return;
883: }
1.41 nicm 884:
1.11 nicm 885: if (ny > s->rlower + 1 - s->cy)
886: ny = s->rlower + 1 - s->cy;
1.1 nicm 887: if (ny == 0)
888: return;
889:
1.87 nicm 890: screen_write_initctx(ctx, &ttyctx);
1.107 nicm 891: ttyctx.bg = bg;
1.1 nicm 892:
893: if (s->cy < s->rupper || s->cy > s->rlower)
1.107 nicm 894: grid_view_delete_lines(gd, s->cy, ny, bg);
895: else
896: grid_view_delete_lines_region(gd, s->rlower, s->cy, ny, bg);
1.1 nicm 897:
1.111 nicm 898: screen_write_collect_flush(ctx, 0);
1.17 nicm 899: ttyctx.num = ny;
900: tty_write(tty_cmd_deleteline, &ttyctx);
1.1 nicm 901: }
902:
903: /* Clear line at cursor. */
904: void
1.99 nicm 905: screen_write_clearline(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 906: {
1.92 nicm 907: struct screen *s = ctx->s;
908: struct grid_line *gl;
909: struct tty_ctx ttyctx;
910: u_int sx = screen_size_x(s);
1.1 nicm 911:
1.137 nicm 912: gl = grid_get_line(s->grid, s->grid->hsize + s->cy);
1.140 nicm 913: if (gl->cellsize == 0 && COLOUR_DEFAULT(bg))
1.92 nicm 914: return;
1.1 nicm 915:
1.108 nicm 916: screen_write_initctx(ctx, &ttyctx);
917: ttyctx.bg = bg;
918:
1.99 nicm 919: grid_view_clear(s->grid, 0, s->cy, sx, 1, bg);
920:
1.109 nicm 921: screen_write_collect_clear(ctx, s->cy, 1);
1.114 nicm 922: screen_write_collect_flush(ctx, 0);
1.17 nicm 923: tty_write(tty_cmd_clearline, &ttyctx);
1.1 nicm 924: }
925:
926: /* Clear to end of line from cursor. */
927: void
1.99 nicm 928: screen_write_clearendofline(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 929: {
1.92 nicm 930: struct screen *s = ctx->s;
931: struct grid_line *gl;
932: struct tty_ctx ttyctx;
933: u_int sx = screen_size_x(s);
1.1 nicm 934:
1.137 nicm 935: gl = grid_get_line(s->grid, s->grid->hsize + s->cy);
1.140 nicm 936: if (s->cx > sx - 1 || (s->cx >= gl->cellsize && COLOUR_DEFAULT(bg)))
1.92 nicm 937: return;
1.108 nicm 938:
939: screen_write_initctx(ctx, &ttyctx);
940: ttyctx.bg = bg;
1.1 nicm 941:
1.99 nicm 942: grid_view_clear(s->grid, s->cx, s->cy, sx - s->cx, 1, bg);
943:
1.109 nicm 944: if (s->cx == 0)
945: screen_write_collect_clear(ctx, s->cy, 1);
1.114 nicm 946: screen_write_collect_flush(ctx, 0);
1.41 nicm 947: tty_write(tty_cmd_clearendofline, &ttyctx);
1.1 nicm 948: }
949:
950: /* Clear to start of line from cursor. */
951: void
1.99 nicm 952: screen_write_clearstartofline(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 953: {
954: struct screen *s = ctx->s;
1.17 nicm 955: struct tty_ctx ttyctx;
1.92 nicm 956: u_int sx = screen_size_x(s);
1.1 nicm 957:
1.87 nicm 958: screen_write_initctx(ctx, &ttyctx);
1.99 nicm 959: ttyctx.bg = bg;
1.1 nicm 960:
1.109 nicm 961: if (s->cx > sx - 1)
1.99 nicm 962: grid_view_clear(s->grid, 0, s->cy, sx, 1, bg);
1.109 nicm 963: else
1.99 nicm 964: grid_view_clear(s->grid, 0, s->cy, s->cx + 1, 1, bg);
1.1 nicm 965:
1.109 nicm 966: if (s->cx > sx - 1)
967: screen_write_collect_clear(ctx, s->cy, 1);
1.114 nicm 968: screen_write_collect_flush(ctx, 0);
1.17 nicm 969: tty_write(tty_cmd_clearstartofline, &ttyctx);
1.1 nicm 970: }
971:
1.101 nicm 972: /* Move cursor to px,py. */
1.1 nicm 973: void
1.147 nicm 974: screen_write_cursormove(struct screen_write_ctx *ctx, int px, int py,
975: int origin)
1.1 nicm 976: {
977: struct screen *s = ctx->s;
978:
1.147 nicm 979: if (origin && py != -1 && (s->mode & MODE_ORIGIN)) {
1.146 nicm 980: if ((u_int)py > s->rlower - s->rupper)
1.144 nicm 981: py = s->rlower;
982: else
983: py += s->rupper;
984: }
1.145 nicm 985:
1.146 nicm 986: if (px != -1 && (u_int)px > screen_size_x(s) - 1)
1.145 nicm 987: px = screen_size_x(s) - 1;
1.146 nicm 988: if (py != -1 && (u_int)py > screen_size_y(s) - 1)
1.145 nicm 989: py = screen_size_y(s) - 1;
1.1 nicm 990:
1.139 nicm 991: screen_write_set_cursor(ctx, px, py);
1.1 nicm 992: }
993:
1.101 nicm 994: /* Reverse index (up with scroll). */
1.1 nicm 995: void
1.122 nicm 996: screen_write_reverseindex(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 997: {
998: struct screen *s = ctx->s;
1.17 nicm 999: struct tty_ctx ttyctx;
1.1 nicm 1000:
1.87 nicm 1001: screen_write_initctx(ctx, &ttyctx);
1.122 nicm 1002: ttyctx.bg = bg;
1.1 nicm 1003:
1.109 nicm 1004: if (s->cy == s->rupper)
1.122 nicm 1005: grid_view_scroll_region_down(s->grid, s->rupper, s->rlower, bg);
1.109 nicm 1006: else if (s->cy > 0)
1.139 nicm 1007: screen_write_set_cursor(ctx, -1, s->cy - 1);
1.1 nicm 1008:
1.111 nicm 1009: screen_write_collect_flush(ctx, 0);
1.17 nicm 1010: tty_write(tty_cmd_reverseindex, &ttyctx);
1.1 nicm 1011: }
1012:
1013: /* Set scroll region. */
1014: void
1.83 nicm 1015: screen_write_scrollregion(struct screen_write_ctx *ctx, u_int rupper,
1016: u_int rlower)
1.1 nicm 1017: {
1018: struct screen *s = ctx->s;
1019:
1020: if (rupper > screen_size_y(s) - 1)
1021: rupper = screen_size_y(s) - 1;
1022: if (rlower > screen_size_y(s) - 1)
1023: rlower = screen_size_y(s) - 1;
1.13 nicm 1024: if (rupper >= rlower) /* cannot be one line */
1.1 nicm 1025: return;
1026:
1.111 nicm 1027: screen_write_collect_flush(ctx, 0);
1.110 nicm 1028:
1.1 nicm 1029: /* Cursor moves to top-left. */
1.139 nicm 1030: screen_write_set_cursor(ctx, 0, 0);
1.1 nicm 1031:
1032: s->rupper = rupper;
1033: s->rlower = rlower;
1034: }
1035:
1.34 nicm 1036: /* Line feed. */
1.1 nicm 1037: void
1.122 nicm 1038: screen_write_linefeed(struct screen_write_ctx *ctx, int wrapped, u_int bg)
1.1 nicm 1039: {
1.20 nicm 1040: struct screen *s = ctx->s;
1.109 nicm 1041: struct grid *gd = s->grid;
1.20 nicm 1042: struct grid_line *gl;
1.1 nicm 1043:
1.137 nicm 1044: gl = grid_get_line(gd, gd->hsize + s->cy);
1.20 nicm 1045: if (wrapped)
1046: gl->flags |= GRID_LINE_WRAPPED;
1.73 nicm 1047: else
1048: gl->flags &= ~GRID_LINE_WRAPPED;
1.20 nicm 1049:
1.114 nicm 1050: log_debug("%s: at %u,%u (region %u-%u)", __func__, s->cx, s->cy,
1051: s->rupper, s->rlower);
1052:
1.122 nicm 1053: if (bg != ctx->bg) {
1054: screen_write_collect_flush(ctx, 1);
1055: ctx->bg = bg;
1056: }
1057:
1.92 nicm 1058: if (s->cy == s->rlower) {
1.122 nicm 1059: grid_view_scroll_region_up(gd, s->rupper, s->rlower, bg);
1.109 nicm 1060: screen_write_collect_scroll(ctx);
1.110 nicm 1061: ctx->scrolled++;
1.109 nicm 1062: } else if (s->cy < screen_size_y(s) - 1)
1.139 nicm 1063: screen_write_set_cursor(ctx, -1, s->cy + 1);
1.1 nicm 1064: }
1065:
1.110 nicm 1066: /* Scroll up. */
1067: void
1.122 nicm 1068: screen_write_scrollup(struct screen_write_ctx *ctx, u_int lines, u_int bg)
1.110 nicm 1069: {
1070: struct screen *s = ctx->s;
1071: struct grid *gd = s->grid;
1072: u_int i;
1073:
1074: if (lines == 0)
1075: lines = 1;
1076: else if (lines > s->rlower - s->rupper + 1)
1077: lines = s->rlower - s->rupper + 1;
1078:
1.122 nicm 1079: if (bg != ctx->bg) {
1080: screen_write_collect_flush(ctx, 1);
1081: ctx->bg = bg;
1082: }
1083:
1.110 nicm 1084: for (i = 0; i < lines; i++) {
1.122 nicm 1085: grid_view_scroll_region_up(gd, s->rupper, s->rlower, bg);
1.110 nicm 1086: screen_write_collect_scroll(ctx);
1087: }
1088: ctx->scrolled += lines;
1.157 ! nicm 1089: }
! 1090:
! 1091: /* Scroll down. */
! 1092: void
! 1093: screen_write_scrolldown(struct screen_write_ctx *ctx, u_int lines, u_int bg)
! 1094: {
! 1095: struct screen *s = ctx->s;
! 1096: struct grid *gd = s->grid;
! 1097: struct tty_ctx ttyctx;
! 1098: u_int i;
! 1099:
! 1100: screen_write_initctx(ctx, &ttyctx);
! 1101: ttyctx.bg = bg;
! 1102:
! 1103: if (lines == 0)
! 1104: lines = 1;
! 1105: else if (lines > s->rlower - s->rupper + 1)
! 1106: lines = s->rlower - s->rupper + 1;
! 1107:
! 1108: for (i = 0; i < lines; i++)
! 1109: grid_view_scroll_region_down(gd, s->rupper, s->rlower, bg);
! 1110:
! 1111: screen_write_collect_flush(ctx, 0);
! 1112: ttyctx.num = lines;
! 1113: tty_write(tty_cmd_scrolldown, &ttyctx);
1.110 nicm 1114: }
1115:
1.1 nicm 1116: /* Carriage return (cursor to start of line). */
1117: void
1118: screen_write_carriagereturn(struct screen_write_ctx *ctx)
1119: {
1.139 nicm 1120: screen_write_set_cursor(ctx, 0, -1);
1.1 nicm 1121: }
1122:
1123: /* Clear to end of screen from cursor. */
1124: void
1.99 nicm 1125: screen_write_clearendofscreen(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1126: {
1127: struct screen *s = ctx->s;
1.107 nicm 1128: struct grid *gd = s->grid;
1.17 nicm 1129: struct tty_ctx ttyctx;
1.92 nicm 1130: u_int sx = screen_size_x(s), sy = screen_size_y(s);
1.1 nicm 1131:
1.87 nicm 1132: screen_write_initctx(ctx, &ttyctx);
1.99 nicm 1133: ttyctx.bg = bg;
1.1 nicm 1134:
1.46 nicm 1135: /* Scroll into history if it is enabled and clearing entire screen. */
1.109 nicm 1136: if (s->cx == 0 && s->cy == 0 && (gd->flags & GRID_HISTORY))
1.107 nicm 1137: grid_view_clear_history(gd, bg);
1.109 nicm 1138: else {
1139: if (s->cx <= sx - 1)
1.107 nicm 1140: grid_view_clear(gd, s->cx, s->cy, sx - s->cx, 1, bg);
1141: grid_view_clear(gd, 0, s->cy + 1, sx, sy - (s->cy + 1), bg);
1.46 nicm 1142: }
1.1 nicm 1143:
1.109 nicm 1144: screen_write_collect_clear(ctx, s->cy + 1, sy - (s->cy + 1));
1.111 nicm 1145: screen_write_collect_flush(ctx, 0);
1.17 nicm 1146: tty_write(tty_cmd_clearendofscreen, &ttyctx);
1.1 nicm 1147: }
1148:
1149: /* Clear to start of screen. */
1150: void
1.105 nicm 1151: screen_write_clearstartofscreen(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1152: {
1153: struct screen *s = ctx->s;
1.17 nicm 1154: struct tty_ctx ttyctx;
1.92 nicm 1155: u_int sx = screen_size_x(s);
1.1 nicm 1156:
1.87 nicm 1157: screen_write_initctx(ctx, &ttyctx);
1.105 nicm 1158: ttyctx.bg = bg;
1.1 nicm 1159:
1.109 nicm 1160: if (s->cy > 0)
1.105 nicm 1161: grid_view_clear(s->grid, 0, 0, sx, s->cy, bg);
1.109 nicm 1162: if (s->cx > sx - 1)
1.120 nicm 1163: grid_view_clear(s->grid, 0, s->cy, sx, 1, bg);
1.109 nicm 1164: else
1.120 nicm 1165: grid_view_clear(s->grid, 0, s->cy, s->cx + 1, 1, bg);
1.1 nicm 1166:
1.109 nicm 1167: screen_write_collect_clear(ctx, 0, s->cy);
1.111 nicm 1168: screen_write_collect_flush(ctx, 0);
1.17 nicm 1169: tty_write(tty_cmd_clearstartofscreen, &ttyctx);
1.1 nicm 1170: }
1171:
1172: /* Clear entire screen. */
1173: void
1.99 nicm 1174: screen_write_clearscreen(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1175: {
1176: struct screen *s = ctx->s;
1.17 nicm 1177: struct tty_ctx ttyctx;
1.92 nicm 1178: u_int sx = screen_size_x(s), sy = screen_size_y(s);
1.1 nicm 1179:
1.87 nicm 1180: screen_write_initctx(ctx, &ttyctx);
1.99 nicm 1181: ttyctx.bg = bg;
1.1 nicm 1182:
1.46 nicm 1183: /* Scroll into history if it is enabled. */
1184: if (s->grid->flags & GRID_HISTORY)
1.99 nicm 1185: grid_view_clear_history(s->grid, bg);
1.83 nicm 1186: else
1.99 nicm 1187: grid_view_clear(s->grid, 0, 0, sx, sy, bg);
1.1 nicm 1188:
1.109 nicm 1189: screen_write_collect_clear(ctx, 0, sy);
1.17 nicm 1190: tty_write(tty_cmd_clearscreen, &ttyctx);
1.51 nicm 1191: }
1192:
1193: /* Clear entire history. */
1194: void
1195: screen_write_clearhistory(struct screen_write_ctx *ctx)
1196: {
1.156 nicm 1197: grid_clear_history(ctx->s->grid);
1.1 nicm 1198: }
1199:
1.109 nicm 1200: /* Clear a collected line. */
1201: static void
1202: screen_write_collect_clear(struct screen_write_ctx *ctx, u_int y, u_int n)
1203: {
1204: struct screen_write_collect_item *ci, *tmp;
1205: u_int i;
1206: size_t size;
1207:
1.151 nicm 1208: for (i = y; i < y + n; i++) {
1.109 nicm 1209: if (TAILQ_EMPTY(&ctx->list[i].items))
1210: continue;
1211: size = 0;
1212: TAILQ_FOREACH_SAFE(ci, &ctx->list[i].items, entry, tmp) {
1213: size += ci->used;
1214: TAILQ_REMOVE(&ctx->list[i].items, ci, entry);
1215: free(ci);
1216: }
1217: ctx->skipped += size;
1.114 nicm 1218: log_debug("%s: dropped %zu bytes (line %u)", __func__, size, i);
1.109 nicm 1219: }
1220: }
1221:
1222: /* Scroll collected lines up. */
1223: static void
1224: screen_write_collect_scroll(struct screen_write_ctx *ctx)
1225: {
1226: struct screen *s = ctx->s;
1227: struct screen_write_collect_line *cl;
1228: u_int y;
1229:
1.114 nicm 1230: log_debug("%s: at %u,%u (region %u-%u)", __func__, s->cx, s->cy,
1231: s->rupper, s->rlower);
1232:
1.109 nicm 1233: screen_write_collect_clear(ctx, s->rupper, 1);
1234: for (y = s->rupper; y < s->rlower; y++) {
1235: cl = &ctx->list[y + 1];
1236: TAILQ_CONCAT(&ctx->list[y].items, &cl->items, entry);
1237: TAILQ_INIT(&cl->items);
1238: }
1239: }
1240:
1241: /* Flush collected lines. */
1242: static void
1.111 nicm 1243: screen_write_collect_flush(struct screen_write_ctx *ctx, int scroll_only)
1.109 nicm 1244: {
1245: struct screen *s = ctx->s;
1246: struct screen_write_collect_item *ci, *tmp;
1.116 nicm 1247: u_int y, cx, cy, items = 0;
1.109 nicm 1248: struct tty_ctx ttyctx;
1.116 nicm 1249: size_t written = 0;
1.110 nicm 1250:
1251: if (ctx->scrolled != 0) {
1252: log_debug("%s: scrolled %u (region %u-%u)", __func__,
1253: ctx->scrolled, s->rupper, s->rlower);
1254: if (ctx->scrolled > s->rlower - s->rupper + 1)
1255: ctx->scrolled = s->rlower - s->rupper + 1;
1256:
1257: screen_write_initctx(ctx, &ttyctx);
1258: ttyctx.num = ctx->scrolled;
1.122 nicm 1259: ttyctx.bg = ctx->bg;
1.110 nicm 1260: tty_write(tty_cmd_scrollup, &ttyctx);
1261: }
1262: ctx->scrolled = 0;
1.122 nicm 1263: ctx->bg = 8;
1264:
1.111 nicm 1265: if (scroll_only)
1266: return;
1.109 nicm 1267:
1268: cx = s->cx; cy = s->cy;
1269: for (y = 0; y < screen_size_y(s); y++) {
1270: TAILQ_FOREACH_SAFE(ci, &ctx->list[y].items, entry, tmp) {
1.144 nicm 1271: screen_write_set_cursor(ctx, ci->x, y);
1.109 nicm 1272: screen_write_initctx(ctx, &ttyctx);
1273: ttyctx.cell = &ci->gc;
1.118 nicm 1274: ttyctx.wrapped = ci->wrapped;
1.109 nicm 1275: ttyctx.ptr = ci->data;
1276: ttyctx.num = ci->used;
1277: tty_write(tty_cmd_cells, &ttyctx);
1.116 nicm 1278:
1279: items++;
1280: written += ci->used;
1.109 nicm 1281:
1282: TAILQ_REMOVE(&ctx->list[y].items, ci, entry);
1283: free(ci);
1284: }
1285: }
1286: s->cx = cx; s->cy = cy;
1.116 nicm 1287:
1288: log_debug("%s: flushed %u items (%zu bytes)", __func__, items, written);
1289: ctx->written += written;
1.109 nicm 1290: }
1291:
1292: /* Finish and store collected cells. */
1293: void
1294: screen_write_collect_end(struct screen_write_ctx *ctx)
1295: {
1296: struct screen *s = ctx->s;
1297: struct screen_write_collect_item *ci = ctx->item;
1298: struct grid_cell gc;
1.131 nicm 1299: u_int xx;
1.109 nicm 1300:
1301: if (ci->used == 0)
1302: return;
1303: ci->data[ci->used] = '\0';
1304:
1305: ci->x = s->cx;
1306: TAILQ_INSERT_TAIL(&ctx->list[s->cy].items, ci, entry);
1307: ctx->item = xcalloc(1, sizeof *ctx->item);
1308:
1309: log_debug("%s: %u %s (at %u,%u)", __func__, ci->used, ci->data, s->cx,
1310: s->cy);
1311:
1.131 nicm 1312: if (s->cx != 0) {
1313: for (xx = s->cx; xx > 0; xx--) {
1314: grid_view_get_cell(s->grid, xx, s->cy, &gc);
1315: if (~gc.flags & GRID_FLAG_PADDING)
1316: break;
1.136 nicm 1317: grid_view_set_cell(s->grid, xx, s->cy,
1318: &grid_default_cell);
1.131 nicm 1319: }
1.139 nicm 1320: if (gc.data.width > 1) {
1.136 nicm 1321: grid_view_set_cell(s->grid, xx, s->cy,
1322: &grid_default_cell);
1.139 nicm 1323: }
1.131 nicm 1324: }
1325:
1.109 nicm 1326: memcpy(&gc, &ci->gc, sizeof gc);
1327: grid_view_set_cells(s->grid, s->cx, s->cy, &gc, ci->data, ci->used);
1.139 nicm 1328: screen_write_set_cursor(ctx, s->cx + ci->used, -1);
1.131 nicm 1329:
1330: for (xx = s->cx; xx < screen_size_x(s); xx++) {
1331: grid_view_get_cell(s->grid, xx, s->cy, &gc);
1332: if (~gc.flags & GRID_FLAG_PADDING)
1333: break;
1334: grid_view_set_cell(s->grid, xx, s->cy, &grid_default_cell);
1335: }
1.109 nicm 1336: }
1337:
1338: /* Write cell data, collecting if necessary. */
1339: void
1340: screen_write_collect_add(struct screen_write_ctx *ctx,
1341: const struct grid_cell *gc)
1342: {
1343: struct screen *s = ctx->s;
1344: struct screen_write_collect_item *ci;
1345: u_int sx = screen_size_x(s);
1346: int collect;
1347:
1348: /*
1349: * Don't need to check that the attributes and whatnot are still the
1.116 nicm 1350: * same - input_parse will end the collection when anything that isn't
1351: * a plain character is encountered. Also nothing should make it here
1352: * that isn't a single ASCII character.
1.109 nicm 1353: */
1354:
1355: collect = 1;
1.136 nicm 1356: if (gc->data.width != 1 || gc->data.size != 1 || *gc->data.data >= 0x7f)
1.109 nicm 1357: collect = 0;
1358: else if (gc->attr & GRID_ATTR_CHARSET)
1359: collect = 0;
1360: else if (~s->mode & MODE_WRAP)
1361: collect = 0;
1362: else if (s->mode & MODE_INSERT)
1363: collect = 0;
1.138 nicm 1364: else if (s->sel != NULL)
1.109 nicm 1365: collect = 0;
1366: if (!collect) {
1367: screen_write_collect_end(ctx);
1.116 nicm 1368: screen_write_collect_flush(ctx, 0);
1.109 nicm 1369: screen_write_cell(ctx, gc);
1370: return;
1371: }
1372: ctx->cells++;
1373:
1374: if (s->cx > sx - 1 || ctx->item->used > sx - 1 - s->cx)
1375: screen_write_collect_end(ctx);
1.118 nicm 1376: ci = ctx->item; /* may have changed */
1377:
1.109 nicm 1378: if (s->cx > sx - 1) {
1.114 nicm 1379: log_debug("%s: wrapped at %u,%u", __func__, s->cx, s->cy);
1.118 nicm 1380: ci->wrapped = 1;
1.122 nicm 1381: screen_write_linefeed(ctx, 1, 8);
1.139 nicm 1382: screen_write_set_cursor(ctx, 0, -1);
1.109 nicm 1383: }
1384:
1385: if (ci->used == 0)
1386: memcpy(&ci->gc, gc, sizeof ci->gc);
1387: ci->data[ci->used++] = gc->data.data[0];
1388: if (ci->used == (sizeof ci->data) - 1)
1389: screen_write_collect_end(ctx);
1390: }
1391:
1.1 nicm 1392: /* Write cell data. */
1393: void
1.60 nicm 1394: screen_write_cell(struct screen_write_ctx *ctx, const struct grid_cell *gc)
1.1 nicm 1395: {
1396: struct screen *s = ctx->s;
1397: struct grid *gd = s->grid;
1.109 nicm 1398: struct grid_line *gl;
1399: struct grid_cell_entry *gce;
1400: struct grid_cell tmp_gc, now_gc;
1.15 nicm 1401: struct tty_ctx ttyctx;
1.92 nicm 1402: u_int sx = screen_size_x(s), sy = screen_size_y(s);
1.115 nicm 1403: u_int width = gc->data.width, xx, last, cx, cy;
1.109 nicm 1404: int selected, skip = 1;
1.1 nicm 1405:
1.109 nicm 1406: /* Ignore padding cells. */
1.1 nicm 1407: if (gc->flags & GRID_FLAG_PADDING)
1408: return;
1.109 nicm 1409: ctx->cells++;
1.32 nicm 1410:
1.109 nicm 1411: /* If the width is zero, combine onto the previous character. */
1.1 nicm 1412: if (width == 0) {
1.112 nicm 1413: screen_write_collect_flush(ctx, 0);
1.104 nicm 1414: if ((gc = screen_write_combine(ctx, &gc->data, &xx)) != 0) {
1.115 nicm 1415: cx = s->cx; cy = s->cy;
1.144 nicm 1416: screen_write_set_cursor(ctx, xx, s->cy);
1.87 nicm 1417: screen_write_initctx(ctx, &ttyctx);
1.104 nicm 1418: ttyctx.cell = gc;
1419: tty_write(tty_cmd_cell, &ttyctx);
1.115 nicm 1420: s->cx = cx; s->cy = cy;
1.1 nicm 1421: }
1422: return;
1423: }
1.112 nicm 1424:
1425: /* Flush any existing scrolling. */
1426: screen_write_collect_flush(ctx, 1);
1.1 nicm 1427:
1.109 nicm 1428: /* If this character doesn't fit, ignore it. */
1429: if ((~s->mode & MODE_WRAP) &&
1430: width > 1 &&
1431: (width > sx || (s->cx != sx && s->cx > sx - width)))
1432: return;
1433:
1.6 nicm 1434: /* If in insert mode, make space for the cells. */
1.98 nicm 1435: if (s->mode & MODE_INSERT) {
1.109 nicm 1436: grid_view_insert_cells(s->grid, s->cx, s->cy, width, 8);
1437: skip = 0;
1438: }
1.6 nicm 1439:
1.20 nicm 1440: /* Check this will fit on the current line and wrap if not. */
1.92 nicm 1441: if ((s->mode & MODE_WRAP) && s->cx > sx - width) {
1.128 nicm 1442: log_debug("%s: wrapped at %u,%u", __func__, s->cx, s->cy);
1.122 nicm 1443: screen_write_linefeed(ctx, 1, 8);
1.139 nicm 1444: screen_write_set_cursor(ctx, 0, -1);
1.128 nicm 1445: screen_write_collect_flush(ctx, 1);
1.1 nicm 1446: }
1447:
1.64 nicm 1448: /* Sanity check cursor position. */
1.92 nicm 1449: if (s->cx > sx - width || s->cy > sy - 1)
1.1 nicm 1450: return;
1.106 nicm 1451: screen_write_initctx(ctx, &ttyctx);
1452:
1.1 nicm 1453: /* Handle overwriting of UTF-8 characters. */
1.137 nicm 1454: gl = grid_get_line(s->grid, s->grid->hsize + s->cy);
1.92 nicm 1455: if (gl->flags & GRID_LINE_EXTENDED) {
1456: grid_view_get_cell(gd, s->cx, s->cy, &now_gc);
1457: if (screen_write_overwrite(ctx, &now_gc, width))
1458: skip = 0;
1459: }
1.1 nicm 1460:
1461: /*
1462: * If the new character is UTF-8 wide, fill in padding cells. Have
1463: * already ensured there is enough room.
1464: */
1.89 nicm 1465: for (xx = s->cx + 1; xx < s->cx + width; xx++) {
1.131 nicm 1466: log_debug("%s: new padding at %u,%u", __func__, xx, s->cy);
1.88 nicm 1467: grid_view_set_cell(gd, xx, s->cy, &screen_write_pad_cell);
1.89 nicm 1468: skip = 0;
1469: }
1470:
1471: /* If no change, do not draw. */
1.92 nicm 1472: if (skip) {
1473: if (s->cx >= gl->cellsize)
1474: skip = grid_cells_equal(gc, &grid_default_cell);
1475: else {
1476: gce = &gl->celldata[s->cx];
1477: if (gce->flags & GRID_FLAG_EXTENDED)
1478: skip = 0;
1.95 nicm 1479: else if (gc->flags != gce->flags)
1.92 nicm 1480: skip = 0;
1481: else if (gc->attr != gce->data.attr)
1482: skip = 0;
1483: else if (gc->fg != gce->data.fg)
1484: skip = 0;
1485: else if (gc->bg != gce->data.bg)
1486: skip = 0;
1.95 nicm 1487: else if (gc->data.width != 1)
1488: skip = 0;
1.109 nicm 1489: else if (gc->data.size != 1)
1490: skip = 0;
1.95 nicm 1491: else if (gce->data.data != gc->data.data[0])
1.92 nicm 1492: skip = 0;
1493: }
1494: }
1.1 nicm 1495:
1.127 nicm 1496: /* Update the selected flag and set the cell. */
1.90 nicm 1497: selected = screen_check_selection(s, s->cx, s->cy);
1.109 nicm 1498: if (selected && (~gc->flags & GRID_FLAG_SELECTED)) {
1.90 nicm 1499: memcpy(&tmp_gc, gc, sizeof tmp_gc);
1500: tmp_gc.flags |= GRID_FLAG_SELECTED;
1501: grid_view_set_cell(gd, s->cx, s->cy, &tmp_gc);
1.109 nicm 1502: } else if (!selected && (gc->flags & GRID_FLAG_SELECTED)) {
1.90 nicm 1503: memcpy(&tmp_gc, gc, sizeof tmp_gc);
1504: tmp_gc.flags &= ~GRID_FLAG_SELECTED;
1505: grid_view_set_cell(gd, s->cx, s->cy, &tmp_gc);
1506: } else if (!skip)
1.89 nicm 1507: grid_view_set_cell(gd, s->cx, s->cy, gc);
1.109 nicm 1508: if (selected)
1509: skip = 0;
1.1 nicm 1510:
1.64 nicm 1511: /*
1512: * Move the cursor. If not wrapping, stick at the last character and
1513: * replace it.
1514: */
1.65 nicm 1515: last = !(s->mode & MODE_WRAP);
1.92 nicm 1516: if (s->cx <= sx - last - width)
1.139 nicm 1517: screen_write_set_cursor(ctx, s->cx + width, -1);
1.64 nicm 1518: else
1.139 nicm 1519: screen_write_set_cursor(ctx, sx - last, -1);
1.1 nicm 1520:
1.89 nicm 1521: /* Create space for character in insert mode. */
1.109 nicm 1522: if (s->mode & MODE_INSERT) {
1.113 nicm 1523: screen_write_collect_flush(ctx, 0);
1.17 nicm 1524: ttyctx.num = width;
1525: tty_write(tty_cmd_insertcharacter, &ttyctx);
1526: }
1.89 nicm 1527:
1528: /* Write to the screen. */
1.109 nicm 1529: if (!skip) {
1530: if (selected) {
1531: screen_select_cell(s, &tmp_gc, gc);
1532: ttyctx.cell = &tmp_gc;
1533: } else
1534: ttyctx.cell = gc;
1.16 nicm 1535: tty_write(tty_cmd_cell, &ttyctx);
1.92 nicm 1536: ctx->written++;
1537: } else
1538: ctx->skipped++;
1.35 nicm 1539: }
1540:
1541: /* Combine a UTF-8 zero-width character onto the previous. */
1.104 nicm 1542: static const struct grid_cell *
1543: screen_write_combine(struct screen_write_ctx *ctx, const struct utf8_data *ud,
1544: u_int *xx)
1.35 nicm 1545: {
1546: struct screen *s = ctx->s;
1547: struct grid *gd = s->grid;
1.104 nicm 1548: static struct grid_cell gc;
1549: u_int n;
1.35 nicm 1550:
1551: /* Can't combine if at 0. */
1552: if (s->cx == 0)
1.104 nicm 1553: return (NULL);
1.35 nicm 1554:
1.60 nicm 1555: /* Empty data is out. */
1556: if (ud->size == 0)
1.37 nicm 1557: fatalx("UTF-8 data empty");
1558:
1.60 nicm 1559: /* Retrieve the previous cell. */
1.119 nicm 1560: for (n = 1; n <= s->cx; n++) {
1.104 nicm 1561: grid_view_get_cell(gd, s->cx - n, s->cy, &gc);
1562: if (~gc.flags & GRID_FLAG_PADDING)
1563: break;
1564: }
1.119 nicm 1565: if (n > s->cx)
1.104 nicm 1566: return (NULL);
1567: *xx = s->cx - n;
1.35 nicm 1568:
1.60 nicm 1569: /* Check there is enough space. */
1.77 nicm 1570: if (gc.data.size + ud->size > sizeof gc.data.data)
1.104 nicm 1571: return (NULL);
1572:
1573: log_debug("%s: %.*s onto %.*s at %u,%u", __func__, (int)ud->size,
1574: ud->data, (int)gc.data.size, gc.data.data, *xx, s->cy);
1.35 nicm 1575:
1.77 nicm 1576: /* Append the data. */
1577: memcpy(gc.data.data + gc.data.size, ud->data, ud->size);
1578: gc.data.size += ud->size;
1579:
1580: /* Set the new cell. */
1.104 nicm 1581: grid_view_set_cell(gd, *xx, s->cy, &gc);
1.35 nicm 1582:
1.104 nicm 1583: return (&gc);
1.1 nicm 1584: }
1585:
1586: /*
1587: * UTF-8 wide characters are a bit of an annoyance. They take up more than one
1588: * cell on the screen, so following cells must not be drawn by marking them as
1589: * padding.
1590: *
1591: * So far, so good. The problem is, when overwriting a padding cell, or a UTF-8
1592: * character, it is necessary to also overwrite any other cells which covered
1593: * by the same character.
1594: */
1.89 nicm 1595: static int
1596: screen_write_overwrite(struct screen_write_ctx *ctx, struct grid_cell *gc,
1597: u_int width)
1.1 nicm 1598: {
1599: struct screen *s = ctx->s;
1600: struct grid *gd = s->grid;
1.89 nicm 1601: struct grid_cell tmp_gc;
1.1 nicm 1602: u_int xx;
1.89 nicm 1603: int done = 0;
1.1 nicm 1604:
1.89 nicm 1605: if (gc->flags & GRID_FLAG_PADDING) {
1.1 nicm 1606: /*
1607: * A padding cell, so clear any following and leading padding
1608: * cells back to the character. Don't overwrite the current
1609: * cell as that happens later anyway.
1610: */
1611: xx = s->cx + 1;
1612: while (--xx > 0) {
1.89 nicm 1613: grid_view_get_cell(gd, xx, s->cy, &tmp_gc);
1614: if (~tmp_gc.flags & GRID_FLAG_PADDING)
1.1 nicm 1615: break;
1.131 nicm 1616: log_debug("%s: padding at %u,%u", __func__, xx, s->cy);
1.1 nicm 1617: grid_view_set_cell(gd, xx, s->cy, &grid_default_cell);
1618: }
1619:
1620: /* Overwrite the character at the start of this padding. */
1.131 nicm 1621: log_debug("%s: character at %u,%u", __func__, xx, s->cy);
1.1 nicm 1622: grid_view_set_cell(gd, xx, s->cy, &grid_default_cell);
1.89 nicm 1623: done = 1;
1.43 nicm 1624: }
1.1 nicm 1625:
1.43 nicm 1626: /*
1.95 nicm 1627: * Overwrite any padding cells that belong to any UTF-8 characters
1628: * we'll be overwriting with the current character.
1.43 nicm 1629: */
1.95 nicm 1630: if (width != 1 ||
1631: gc->data.width != 1 ||
1632: gc->flags & GRID_FLAG_PADDING) {
1.89 nicm 1633: xx = s->cx + width - 1;
1634: while (++xx < screen_size_x(s)) {
1635: grid_view_get_cell(gd, xx, s->cy, &tmp_gc);
1636: if (~tmp_gc.flags & GRID_FLAG_PADDING)
1637: break;
1.131 nicm 1638: log_debug("%s: overwrite at %u,%u", __func__, xx, s->cy);
1.89 nicm 1639: grid_view_set_cell(gd, xx, s->cy, &grid_default_cell);
1640: done = 1;
1641: }
1.1 nicm 1642: }
1.89 nicm 1643:
1644: return (done);
1.50 nicm 1645: }
1646:
1.107 nicm 1647: /* Set external clipboard. */
1.50 nicm 1648: void
1649: screen_write_setselection(struct screen_write_ctx *ctx, u_char *str, u_int len)
1650: {
1651: struct tty_ctx ttyctx;
1652:
1.87 nicm 1653: screen_write_initctx(ctx, &ttyctx);
1.50 nicm 1654: ttyctx.ptr = str;
1655: ttyctx.num = len;
1656:
1657: tty_write(tty_cmd_setselection, &ttyctx);
1.47 nicm 1658: }
1659:
1.107 nicm 1660: /* Write unmodified string. */
1.47 nicm 1661: void
1662: screen_write_rawstring(struct screen_write_ctx *ctx, u_char *str, u_int len)
1663: {
1.87 nicm 1664: struct tty_ctx ttyctx;
1.47 nicm 1665:
1.87 nicm 1666: screen_write_initctx(ctx, &ttyctx);
1.47 nicm 1667: ttyctx.ptr = str;
1668: ttyctx.num = len;
1669:
1670: tty_write(tty_cmd_rawstring, &ttyctx);
1.1 nicm 1671: }
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