Annotation of src/usr.bin/tmux/screen-write.c, Revision 1.160
1.160 ! nicm 1: /* $OpenBSD: screen-write.c,v 1.159 2019/09/24 20:44:58 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: {
1.109 nicm 103: u_int y;
104:
105: memset(ctx, 0, sizeof *ctx);
1.92 nicm 106:
1.1 nicm 107: ctx->wp = wp;
108: if (wp != NULL && s == NULL)
109: ctx->s = wp->screen;
110: else
111: ctx->s = s;
1.92 nicm 112:
1.109 nicm 113: ctx->list = xcalloc(screen_size_y(ctx->s), sizeof *ctx->list);
114: for (y = 0; y < screen_size_y(ctx->s); y++)
115: TAILQ_INIT(&ctx->list[y].items);
116: ctx->item = xcalloc(1, sizeof *ctx->item);
1.92 nicm 117:
1.122 nicm 118: ctx->scrolled = 0;
119: ctx->bg = 8;
120:
1.158 nicm 121: if (log_get_level() != 0) {
122: if (wp != NULL) {
123: log_debug("%s: size %ux%u, pane %%%u (at %u,%u)",
124: __func__, screen_size_x(ctx->s),
125: screen_size_y(ctx->s), wp->id, wp->xoff, wp->yoff);
126: } else {
127: log_debug("%s: size %ux%u, no pane",
128: __func__, screen_size_x(ctx->s),
129: screen_size_y(ctx->s));
130: }
1.139 nicm 131: }
1.1 nicm 132: }
133:
134: /* Finish writing. */
135: void
1.92 nicm 136: screen_write_stop(struct screen_write_ctx *ctx)
137: {
1.109 nicm 138: screen_write_collect_end(ctx);
1.111 nicm 139: screen_write_collect_flush(ctx, 0);
1.92 nicm 140:
1.109 nicm 141: log_debug("%s: %u cells (%u written, %u skipped)", __func__,
142: ctx->cells, ctx->written, ctx->skipped);
1.92 nicm 143:
1.109 nicm 144: free(ctx->item);
145: free(ctx->list); /* flush will have emptied */
1.52 nicm 146: }
147:
148: /* Reset screen state. */
149: void
150: screen_write_reset(struct screen_write_ctx *ctx)
151: {
1.61 nicm 152: struct screen *s = ctx->s;
1.52 nicm 153:
1.61 nicm 154: screen_reset_tabs(s);
155: screen_write_scrollregion(ctx, 0, screen_size_y(s) - 1);
1.63 nicm 156:
1.141 nicm 157: s->mode = MODE_CURSOR | MODE_WRAP;
1.52 nicm 158:
1.99 nicm 159: screen_write_clearscreen(ctx, 8);
1.144 nicm 160: screen_write_set_cursor(ctx, 0, 0);
1.1 nicm 161: }
162:
163: /* Write character. */
164: void
1.86 nicm 165: screen_write_putc(struct screen_write_ctx *ctx, const struct grid_cell *gcp,
1.69 nicm 166: u_char ch)
1.1 nicm 167: {
1.86 nicm 168: struct grid_cell gc;
169:
170: memcpy(&gc, gcp, sizeof gc);
171:
172: utf8_set(&gc.data, ch);
173: screen_write_cell(ctx, &gc);
1.1 nicm 174: }
175:
1.2 nicm 176: /* Calculate string length. */
1.71 nicm 177: size_t
1.75 nicm 178: screen_write_strlen(const char *fmt, ...)
1.2 nicm 179: {
1.36 nicm 180: va_list ap;
181: char *msg;
1.76 nicm 182: struct utf8_data ud;
1.36 nicm 183: u_char *ptr;
184: size_t left, size = 0;
1.79 nicm 185: enum utf8_state more;
1.2 nicm 186:
187: va_start(ap, fmt);
188: xvasprintf(&msg, fmt, ap);
189: va_end(ap);
190:
191: ptr = msg;
192: while (*ptr != '\0') {
1.79 nicm 193: if (*ptr > 0x7f && utf8_open(&ud, *ptr) == UTF8_MORE) {
1.36 nicm 194: ptr++;
1.2 nicm 195:
196: left = strlen(ptr);
1.77 nicm 197: if (left < (size_t)ud.size - 1)
1.36 nicm 198: break;
1.79 nicm 199: while ((more = utf8_append(&ud, *ptr)) == UTF8_MORE)
1.2 nicm 200: ptr++;
1.36 nicm 201: ptr++;
202:
1.79 nicm 203: if (more == UTF8_DONE)
1.78 nicm 204: size += ud.width;
1.2 nicm 205: } else {
1.75 nicm 206: if (*ptr > 0x1f && *ptr < 0x7f)
207: size++;
1.2 nicm 208: ptr++;
209: }
1.7 ray 210: }
1.2 nicm 211:
1.56 nicm 212: free(msg);
1.2 nicm 213: return (size);
214: }
215:
1.3 nicm 216: /* Write simple string (no UTF-8 or maximum length). */
1.71 nicm 217: void
1.86 nicm 218: screen_write_puts(struct screen_write_ctx *ctx, const struct grid_cell *gcp,
1.71 nicm 219: const char *fmt, ...)
1.1 nicm 220: {
221: va_list ap;
222:
223: va_start(ap, fmt);
1.86 nicm 224: screen_write_vnputs(ctx, -1, gcp, fmt, ap);
1.2 nicm 225: va_end(ap);
226: }
227:
228: /* Write string with length limit (-1 for unlimited). */
1.71 nicm 229: void
230: screen_write_nputs(struct screen_write_ctx *ctx, ssize_t maxlen,
1.86 nicm 231: const struct grid_cell *gcp, const char *fmt, ...)
1.2 nicm 232: {
233: va_list ap;
234:
235: va_start(ap, fmt);
1.86 nicm 236: screen_write_vnputs(ctx, maxlen, gcp, fmt, ap);
1.2 nicm 237: va_end(ap);
238: }
239:
240: void
1.3 nicm 241: screen_write_vnputs(struct screen_write_ctx *ctx, ssize_t maxlen,
1.86 nicm 242: const struct grid_cell *gcp, const char *fmt, va_list ap)
1.2 nicm 243: {
1.86 nicm 244: struct grid_cell gc;
245: struct utf8_data *ud = &gc.data;
1.36 nicm 246: char *msg;
247: u_char *ptr;
248: size_t left, size = 0;
1.79 nicm 249: enum utf8_state more;
1.2 nicm 250:
1.86 nicm 251: memcpy(&gc, gcp, sizeof gc);
1.1 nicm 252: xvasprintf(&msg, fmt, ap);
253:
1.2 nicm 254: ptr = msg;
255: while (*ptr != '\0') {
1.86 nicm 256: if (*ptr > 0x7f && utf8_open(ud, *ptr) == UTF8_MORE) {
1.36 nicm 257: ptr++;
1.2 nicm 258:
259: left = strlen(ptr);
1.86 nicm 260: if (left < (size_t)ud->size - 1)
1.36 nicm 261: break;
1.86 nicm 262: while ((more = utf8_append(ud, *ptr)) == UTF8_MORE)
1.2 nicm 263: ptr++;
1.36 nicm 264: ptr++;
1.7 ray 265:
1.86 nicm 266: if (more != UTF8_DONE)
267: continue;
268: if (maxlen > 0 && size + ud->width > (size_t)maxlen) {
269: while (size < (size_t)maxlen) {
270: screen_write_putc(ctx, &gc, ' ');
271: size++;
1.2 nicm 272: }
1.86 nicm 273: break;
1.2 nicm 274: }
1.86 nicm 275: size += ud->width;
276: screen_write_cell(ctx, &gc);
1.2 nicm 277: } else {
1.86 nicm 278: if (maxlen > 0 && size + 1 > (size_t)maxlen)
1.2 nicm 279: break;
280:
1.57 nicm 281: if (*ptr == '\001')
1.86 nicm 282: gc.attr ^= GRID_ATTR_CHARSET;
1.75 nicm 283: else if (*ptr > 0x1f && *ptr < 0x7f) {
1.57 nicm 284: size++;
1.86 nicm 285: screen_write_putc(ctx, &gc, *ptr);
1.75 nicm 286: }
1.24 nicm 287: ptr++;
288: }
289: }
290:
1.56 nicm 291: free(msg);
1.1 nicm 292: }
293:
1.132 nicm 294: /* Copy from another screen. Assumes target region is big enough. */
1.1 nicm 295: void
1.95 nicm 296: screen_write_copy(struct screen_write_ctx *ctx, struct screen *src, u_int px,
1.132 nicm 297: u_int py, u_int nx, u_int ny, bitstr_t *mbs, const struct grid_cell *mgc)
1.1 nicm 298: {
299: struct screen *s = ctx->s;
300: struct grid *gd = src->grid;
1.77 nicm 301: struct grid_cell gc;
1.102 nicm 302: u_int xx, yy, cx, cy, b;
1.1 nicm 303:
1.125 nicm 304: if (nx == 0 || ny == 0)
305: return;
306:
1.1 nicm 307: cx = s->cx;
308: cy = s->cy;
1.96 nicm 309:
1.1 nicm 310: for (yy = py; yy < py + ny; yy++) {
1.96 nicm 311: for (xx = px; xx < px + nx; xx++) {
312: grid_get_cell(gd, xx, yy, &gc);
1.132 nicm 313: if (mbs != NULL) {
1.102 nicm 314: b = (yy * screen_size_x(src)) + xx;
1.132 nicm 315: if (bit_test(mbs, b)) {
316: gc.attr = mgc->attr;
317: gc.fg = mgc->fg;
318: gc.bg = mgc->bg;
1.102 nicm 319: }
320: }
1.135 nicm 321: if (xx + gc.data.width <= px + nx)
322: screen_write_cell(ctx, &gc);
1.96 nicm 323: }
1.132 nicm 324: cy++;
1.144 nicm 325: screen_write_set_cursor(ctx, cx, cy);
1.132 nicm 326: }
327: }
328:
329: /*
330: * Copy from another screen but without the selection stuff. Also assumes the
1.150 nicm 331: * target region is already big enough.
1.132 nicm 332: */
333: void
334: screen_write_fast_copy(struct screen_write_ctx *ctx, struct screen *src,
335: u_int px, u_int py, u_int nx, u_int ny)
336: {
337: struct screen *s = ctx->s;
338: struct grid *gd = src->grid;
339: struct grid_cell gc;
340: u_int xx, yy, cx, cy;
1.96 nicm 341:
1.132 nicm 342: if (nx == 0 || ny == 0)
343: return;
344:
345: cy = s->cy;
346: for (yy = py; yy < py + ny; yy++) {
1.134 nicm 347: if (yy >= gd->hsize + gd->sy)
348: break;
1.132 nicm 349: cx = s->cx;
350: for (xx = px; xx < px + nx; xx++) {
1.137 nicm 351: if (xx >= grid_get_line(gd, yy)->cellsize)
1.132 nicm 352: break;
353: grid_get_cell(gd, xx, yy, &gc);
1.135 nicm 354: if (xx + gc.data.width > px + nx)
355: break;
1.150 nicm 356: grid_view_set_cell(ctx->s->grid, cx, cy, &gc);
1.132 nicm 357: cx++;
358: }
1.1 nicm 359: cy++;
1.125 nicm 360: }
361: }
362:
1.129 nicm 363: /* Draw a horizontal line on screen. */
1.125 nicm 364: void
1.129 nicm 365: screen_write_hline(struct screen_write_ctx *ctx, u_int nx, int left, int right)
1.125 nicm 366: {
367: struct screen *s = ctx->s;
368: struct grid_cell gc;
369: u_int cx, cy, i;
370:
371: cx = s->cx;
372: cy = s->cy;
373:
374: memcpy(&gc, &grid_default_cell, sizeof gc);
375: gc.attr |= GRID_ATTR_CHARSET;
376:
377: screen_write_putc(ctx, &gc, left ? 't' : 'q');
378: for (i = 1; i < nx - 1; i++)
379: screen_write_putc(ctx, &gc, 'q');
380: screen_write_putc(ctx, &gc, right ? 'u' : 'q');
1.129 nicm 381:
1.144 nicm 382: screen_write_set_cursor(ctx, cx, cy);
1.129 nicm 383: }
384:
385: /* Draw a horizontal line on screen. */
386: void
1.130 nicm 387: screen_write_vline(struct screen_write_ctx *ctx, u_int ny, int top, int bottom)
1.129 nicm 388: {
389: struct screen *s = ctx->s;
390: struct grid_cell gc;
391: u_int cx, cy, i;
392:
393: cx = s->cx;
394: cy = s->cy;
395:
396: memcpy(&gc, &grid_default_cell, sizeof gc);
397: gc.attr |= GRID_ATTR_CHARSET;
398:
399: screen_write_putc(ctx, &gc, top ? 'w' : 'x');
400: for (i = 1; i < ny - 1; i++) {
1.144 nicm 401: screen_write_set_cursor(ctx, cx, cy + i);
1.129 nicm 402: screen_write_putc(ctx, &gc, 'x');
403: }
1.144 nicm 404: screen_write_set_cursor(ctx, cx, cy + ny - 1);
1.129 nicm 405: screen_write_putc(ctx, &gc, bottom ? 'v' : 'x');
1.152 nicm 406:
407: screen_write_set_cursor(ctx, cx, cy);
408: }
409:
410: /* Draw a menu on screen. */
411: void
412: screen_write_menu(struct screen_write_ctx *ctx, struct menu *menu, int choice)
413: {
414: struct screen *s = ctx->s;
415: struct grid_cell gc;
416: u_int cx, cy, i, j;
1.153 nicm 417: const char *name;
1.152 nicm 418:
419: cx = s->cx;
420: cy = s->cy;
421:
422: memcpy(&gc, &grid_default_cell, sizeof gc);
423:
424: screen_write_box(ctx, menu->width + 4, menu->count + 2);
425: screen_write_cursormove(ctx, cx + 2, cy, 0);
426: format_draw(ctx, &gc, menu->width, menu->title, NULL);
427:
428: for (i = 0; i < menu->count; i++) {
1.153 nicm 429: name = menu->items[i].name;
430: if (name == NULL) {
1.152 nicm 431: screen_write_cursormove(ctx, cx, cy + 1 + i, 0);
432: screen_write_hline(ctx, menu->width + 4, 1, 1);
433: } else {
1.153 nicm 434: if (choice >= 0 && i == (u_int)choice && *name != '-')
1.152 nicm 435: gc.attr |= GRID_ATTR_REVERSE;
436: screen_write_cursormove(ctx, cx + 2, cy + 1 + i, 0);
437: for (j = 0; j < menu->width; j++)
438: screen_write_putc(ctx, &gc, ' ');
439: screen_write_cursormove(ctx, cx + 2, cy + 1 + i, 0);
1.153 nicm 440: if (*name == '-') {
441: name++;
442: gc.attr |= GRID_ATTR_DIM;
443: format_draw(ctx, &gc, menu->width, name, NULL);
444: gc.attr &= ~GRID_ATTR_DIM;
445: } else
446: format_draw(ctx, &gc, menu->width, name, NULL);
1.152 nicm 447: if (choice >= 0 && i == (u_int)choice)
448: gc.attr &= ~GRID_ATTR_REVERSE;
449: }
450: }
1.125 nicm 451:
1.144 nicm 452: screen_write_set_cursor(ctx, cx, cy);
1.125 nicm 453: }
454:
455: /* Draw a box on screen. */
456: void
457: screen_write_box(struct screen_write_ctx *ctx, u_int nx, u_int ny)
458: {
459: struct screen *s = ctx->s;
460: struct grid_cell gc;
461: u_int cx, cy, i;
462:
463: cx = s->cx;
464: cy = s->cy;
465:
466: memcpy(&gc, &grid_default_cell, sizeof gc);
467: gc.attr |= GRID_ATTR_CHARSET;
468:
469: screen_write_putc(ctx, &gc, 'l');
470: for (i = 1; i < nx - 1; i++)
471: screen_write_putc(ctx, &gc, 'q');
472: screen_write_putc(ctx, &gc, 'k');
473:
1.144 nicm 474: screen_write_set_cursor(ctx, cx, cy + ny - 1);
1.125 nicm 475: screen_write_putc(ctx, &gc, 'm');
476: for (i = 1; i < nx - 1; i++)
477: screen_write_putc(ctx, &gc, 'q');
478: screen_write_putc(ctx, &gc, 'j');
479:
480: for (i = 1; i < ny - 1; i++) {
1.144 nicm 481: screen_write_set_cursor(ctx, cx, cy + i);
1.125 nicm 482: screen_write_putc(ctx, &gc, 'x');
483: }
484: for (i = 1; i < ny - 1; i++) {
1.144 nicm 485: screen_write_set_cursor(ctx, cx + nx - 1, cy + i);
1.125 nicm 486: screen_write_putc(ctx, &gc, 'x');
487: }
488:
1.144 nicm 489: screen_write_set_cursor(ctx, cx, cy);
1.125 nicm 490: }
491:
1.132 nicm 492: /*
493: * Write a preview version of a window. Assumes target area is big enough and
494: * already cleared.
495: */
1.125 nicm 496: void
497: screen_write_preview(struct screen_write_ctx *ctx, struct screen *src, u_int nx,
498: u_int ny)
499: {
500: struct screen *s = ctx->s;
501: struct grid_cell gc;
502: u_int cx, cy, px, py;
503:
504: cx = s->cx;
505: cy = s->cy;
506:
507: /*
508: * If the cursor is on, pick the area around the cursor, otherwise use
509: * the top left.
510: */
511: if (src->mode & MODE_CURSOR) {
512: px = src->cx;
513: if (px < nx / 3)
514: px = 0;
515: else
516: px = px - nx / 3;
517: if (px + nx > screen_size_x(src)) {
518: if (nx > screen_size_x(src))
519: px = 0;
520: else
521: px = screen_size_x(src) - nx;
522: }
523: py = src->cy;
524: if (py < ny / 3)
525: py = 0;
526: else
527: py = py - ny / 3;
528: if (py + ny > screen_size_y(src)) {
529: if (ny > screen_size_y(src))
530: py = 0;
531: else
532: py = screen_size_y(src) - ny;
533: }
534: } else {
535: px = 0;
536: py = 0;
537: }
538:
1.132 nicm 539: screen_write_fast_copy(ctx, src, px, src->grid->hsize + py, nx, ny);
1.125 nicm 540:
541: if (src->mode & MODE_CURSOR) {
542: grid_view_get_cell(src->grid, src->cx, src->cy, &gc);
543: gc.attr |= GRID_ATTR_REVERSE;
1.144 nicm 544: screen_write_set_cursor(ctx, cx + (src->cx - px),
1.125 nicm 545: cy + (src->cy - py));
546: screen_write_cell(ctx, &gc);
1.1 nicm 547: }
548: }
549:
1.17 nicm 550: /* Set up context for TTY command. */
1.87 nicm 551: static void
552: screen_write_initctx(struct screen_write_ctx *ctx, struct tty_ctx *ttyctx)
1.1 nicm 553: {
1.87 nicm 554: struct screen *s = ctx->s;
1.123 nicm 555:
556: memset(ttyctx, 0, sizeof *ttyctx);
1.1 nicm 557:
1.17 nicm 558: ttyctx->wp = ctx->wp;
1.1 nicm 559:
1.17 nicm 560: ttyctx->ocx = s->cx;
561: ttyctx->ocy = s->cy;
562:
563: ttyctx->orlower = s->rlower;
564: ttyctx->orupper = s->rupper;
1.87 nicm 565: }
1.31 nicm 566:
1.61 nicm 567: /* Set a mode. */
568: void
569: screen_write_mode_set(struct screen_write_ctx *ctx, int mode)
570: {
571: struct screen *s = ctx->s;
572:
573: s->mode |= mode;
574: }
575:
576: /* Clear a mode. */
577: void
578: screen_write_mode_clear(struct screen_write_ctx *ctx, int mode)
579: {
580: struct screen *s = ctx->s;
581:
582: s->mode &= ~mode;
583: }
584:
1.1 nicm 585: /* Cursor up by ny. */
586: void
587: screen_write_cursorup(struct screen_write_ctx *ctx, u_int ny)
588: {
589: struct screen *s = ctx->s;
1.139 nicm 590: u_int cx = s->cx, cy = s->cy;
1.1 nicm 591:
592: if (ny == 0)
593: ny = 1;
594:
1.139 nicm 595: if (cy < s->rupper) {
1.12 nicm 596: /* Above region. */
1.139 nicm 597: if (ny > cy)
598: ny = cy;
1.12 nicm 599: } else {
600: /* Below region. */
1.139 nicm 601: if (ny > cy - s->rupper)
602: ny = cy - s->rupper;
1.12 nicm 603: }
1.139 nicm 604: if (cx == screen_size_x(s))
605: cx--;
606:
607: cy -= ny;
1.1 nicm 608:
1.139 nicm 609: screen_write_set_cursor(ctx, cx, cy);
1.1 nicm 610: }
611:
612: /* Cursor down by ny. */
613: void
614: screen_write_cursordown(struct screen_write_ctx *ctx, u_int ny)
615: {
616: struct screen *s = ctx->s;
1.139 nicm 617: u_int cx = s->cx, cy = s->cy;
1.1 nicm 618:
619: if (ny == 0)
620: ny = 1;
621:
1.139 nicm 622: if (cy > s->rlower) {
1.12 nicm 623: /* Below region. */
1.139 nicm 624: if (ny > screen_size_y(s) - 1 - cy)
625: ny = screen_size_y(s) - 1 - cy;
1.12 nicm 626: } else {
627: /* Above region. */
1.139 nicm 628: if (ny > s->rlower - cy)
629: ny = s->rlower - cy;
1.12 nicm 630: }
1.139 nicm 631: if (cx == screen_size_x(s))
632: cx--;
633: else if (ny == 0)
1.1 nicm 634: return;
635:
1.139 nicm 636: cy += ny;
637:
638: screen_write_set_cursor(ctx, cx, cy);
1.1 nicm 639: }
640:
1.101 nicm 641: /* Cursor right by nx. */
1.1 nicm 642: void
643: screen_write_cursorright(struct screen_write_ctx *ctx, u_int nx)
644: {
645: struct screen *s = ctx->s;
1.139 nicm 646: u_int cx = s->cx, cy = s->cy;
1.1 nicm 647:
648: if (nx == 0)
649: nx = 1;
650:
1.139 nicm 651: if (nx > screen_size_x(s) - 1 - cx)
652: nx = screen_size_x(s) - 1 - cx;
1.1 nicm 653: if (nx == 0)
654: return;
655:
1.139 nicm 656: cx += nx;
657:
658: screen_write_set_cursor(ctx, cx, cy);
1.1 nicm 659: }
660:
661: /* Cursor left by nx. */
662: void
663: screen_write_cursorleft(struct screen_write_ctx *ctx, u_int nx)
664: {
665: struct screen *s = ctx->s;
1.139 nicm 666: u_int cx = s->cx, cy = s->cy;
1.1 nicm 667:
668: if (nx == 0)
669: nx = 1;
670:
1.139 nicm 671: if (nx > cx)
672: nx = cx;
1.1 nicm 673: if (nx == 0)
674: return;
675:
1.139 nicm 676: cx -= nx;
677:
678: screen_write_set_cursor(ctx, cx, cy);
1.5 nicm 679: }
680:
1.29 nicm 681: /* Backspace; cursor left unless at start of wrapped line when can move up. */
682: void
683: screen_write_backspace(struct screen_write_ctx *ctx)
684: {
685: struct screen *s = ctx->s;
686: struct grid_line *gl;
1.139 nicm 687: u_int cx = s->cx, cy = s->cy;
1.29 nicm 688:
1.139 nicm 689: if (cx == 0) {
690: if (cy == 0)
1.29 nicm 691: return;
1.139 nicm 692: gl = grid_get_line(s->grid, s->grid->hsize + cy - 1);
1.29 nicm 693: if (gl->flags & GRID_LINE_WRAPPED) {
1.139 nicm 694: cy--;
695: cx = screen_size_x(s) - 1;
1.29 nicm 696: }
697: } else
1.139 nicm 698: cx--;
699:
700: screen_write_set_cursor(ctx, cx, cy);
1.29 nicm 701: }
702:
1.5 nicm 703: /* VT100 alignment test. */
704: void
705: screen_write_alignmenttest(struct screen_write_ctx *ctx)
706: {
707: struct screen *s = ctx->s;
1.17 nicm 708: struct tty_ctx ttyctx;
1.5 nicm 709: struct grid_cell gc;
710: u_int xx, yy;
711:
712: memcpy(&gc, &grid_default_cell, sizeof gc);
1.77 nicm 713: utf8_set(&gc.data, 'E');
1.7 ray 714:
1.5 nicm 715: for (yy = 0; yy < screen_size_y(s); yy++) {
716: for (xx = 0; xx < screen_size_x(s); xx++)
717: grid_view_set_cell(s->grid, xx, yy, &gc);
718: }
1.7 ray 719:
1.139 nicm 720: screen_write_set_cursor(ctx, 0, 0);
1.5 nicm 721:
722: s->rupper = 0;
723: s->rlower = screen_size_y(s) - 1;
1.143 nicm 724:
725: screen_write_initctx(ctx, &ttyctx);
1.5 nicm 726:
1.109 nicm 727: screen_write_collect_clear(ctx, 0, screen_size_y(s) - 1);
1.17 nicm 728: tty_write(tty_cmd_alignmenttest, &ttyctx);
1.1 nicm 729: }
730:
731: /* Insert nx characters. */
732: void
1.99 nicm 733: screen_write_insertcharacter(struct screen_write_ctx *ctx, u_int nx, u_int bg)
1.1 nicm 734: {
735: struct screen *s = ctx->s;
1.17 nicm 736: struct tty_ctx ttyctx;
1.1 nicm 737:
738: if (nx == 0)
739: nx = 1;
740:
1.9 nicm 741: if (nx > screen_size_x(s) - s->cx)
742: nx = screen_size_x(s) - s->cx;
1.1 nicm 743: if (nx == 0)
744: return;
745:
1.107 nicm 746: if (s->cx > screen_size_x(s) - 1)
747: return;
748:
1.87 nicm 749: screen_write_initctx(ctx, &ttyctx);
1.107 nicm 750: ttyctx.bg = bg;
1.1 nicm 751:
1.107 nicm 752: grid_view_insert_cells(s->grid, s->cx, s->cy, nx, bg);
1.1 nicm 753:
1.111 nicm 754: screen_write_collect_flush(ctx, 0);
1.17 nicm 755: ttyctx.num = nx;
756: tty_write(tty_cmd_insertcharacter, &ttyctx);
1.1 nicm 757: }
758:
759: /* Delete nx characters. */
760: void
1.99 nicm 761: screen_write_deletecharacter(struct screen_write_ctx *ctx, u_int nx, u_int bg)
1.1 nicm 762: {
763: struct screen *s = ctx->s;
1.17 nicm 764: struct tty_ctx ttyctx;
1.1 nicm 765:
766: if (nx == 0)
767: nx = 1;
768:
1.9 nicm 769: if (nx > screen_size_x(s) - s->cx)
770: nx = screen_size_x(s) - s->cx;
1.1 nicm 771: if (nx == 0)
772: return;
773:
1.107 nicm 774: if (s->cx > screen_size_x(s) - 1)
775: return;
776:
1.87 nicm 777: screen_write_initctx(ctx, &ttyctx);
1.107 nicm 778: ttyctx.bg = bg;
1.1 nicm 779:
1.107 nicm 780: grid_view_delete_cells(s->grid, s->cx, s->cy, nx, bg);
1.1 nicm 781:
1.111 nicm 782: screen_write_collect_flush(ctx, 0);
1.17 nicm 783: ttyctx.num = nx;
784: tty_write(tty_cmd_deletecharacter, &ttyctx);
1.59 nicm 785: }
786:
787: /* Clear nx characters. */
788: void
1.121 nicm 789: screen_write_clearcharacter(struct screen_write_ctx *ctx, u_int nx, u_int bg)
1.59 nicm 790: {
791: struct screen *s = ctx->s;
792: struct tty_ctx ttyctx;
793:
794: if (nx == 0)
795: nx = 1;
796:
797: if (nx > screen_size_x(s) - s->cx)
798: nx = screen_size_x(s) - s->cx;
799: if (nx == 0)
800: return;
801:
1.107 nicm 802: if (s->cx > screen_size_x(s) - 1)
803: return;
804:
1.87 nicm 805: screen_write_initctx(ctx, &ttyctx);
1.121 nicm 806: ttyctx.bg = bg;
1.59 nicm 807:
1.124 nicm 808: grid_view_clear(s->grid, s->cx, s->cy, nx, 1, bg);
1.59 nicm 809:
1.111 nicm 810: screen_write_collect_flush(ctx, 0);
1.59 nicm 811: ttyctx.num = nx;
812: tty_write(tty_cmd_clearcharacter, &ttyctx);
1.1 nicm 813: }
814:
815: /* Insert ny lines. */
816: void
1.99 nicm 817: screen_write_insertline(struct screen_write_ctx *ctx, u_int ny, u_int bg)
1.1 nicm 818: {
819: struct screen *s = ctx->s;
1.107 nicm 820: struct grid *gd = s->grid;
1.17 nicm 821: struct tty_ctx ttyctx;
1.1 nicm 822:
823: if (ny == 0)
824: ny = 1;
825:
1.11 nicm 826: if (s->cy < s->rupper || s->cy > s->rlower) {
827: if (ny > screen_size_y(s) - s->cy)
828: ny = screen_size_y(s) - s->cy;
829: if (ny == 0)
830: return;
831:
1.87 nicm 832: screen_write_initctx(ctx, &ttyctx);
1.107 nicm 833: ttyctx.bg = bg;
1.11 nicm 834:
1.107 nicm 835: grid_view_insert_lines(gd, s->cy, ny, bg);
1.11 nicm 836:
1.111 nicm 837: screen_write_collect_flush(ctx, 0);
1.17 nicm 838: ttyctx.num = ny;
839: tty_write(tty_cmd_insertline, &ttyctx);
1.11 nicm 840: return;
841: }
842:
843: if (ny > s->rlower + 1 - s->cy)
844: ny = s->rlower + 1 - s->cy;
1.1 nicm 845: if (ny == 0)
846: return;
1.41 nicm 847:
1.87 nicm 848: screen_write_initctx(ctx, &ttyctx);
1.107 nicm 849: ttyctx.bg = bg;
1.1 nicm 850:
851: if (s->cy < s->rupper || s->cy > s->rlower)
1.107 nicm 852: grid_view_insert_lines(gd, s->cy, ny, bg);
853: else
854: grid_view_insert_lines_region(gd, s->rlower, s->cy, ny, bg);
1.1 nicm 855:
1.111 nicm 856: screen_write_collect_flush(ctx, 0);
1.17 nicm 857: ttyctx.num = ny;
858: tty_write(tty_cmd_insertline, &ttyctx);
1.1 nicm 859: }
860:
861: /* Delete ny lines. */
862: void
1.99 nicm 863: screen_write_deleteline(struct screen_write_ctx *ctx, u_int ny, u_int bg)
1.1 nicm 864: {
865: struct screen *s = ctx->s;
1.107 nicm 866: struct grid *gd = s->grid;
1.17 nicm 867: struct tty_ctx ttyctx;
1.1 nicm 868:
869: if (ny == 0)
870: ny = 1;
871:
1.11 nicm 872: if (s->cy < s->rupper || s->cy > s->rlower) {
873: if (ny > screen_size_y(s) - s->cy)
874: ny = screen_size_y(s) - s->cy;
875: if (ny == 0)
876: return;
877:
1.87 nicm 878: screen_write_initctx(ctx, &ttyctx);
1.107 nicm 879: ttyctx.bg = bg;
1.11 nicm 880:
1.107 nicm 881: grid_view_delete_lines(gd, s->cy, ny, bg);
1.11 nicm 882:
1.111 nicm 883: screen_write_collect_flush(ctx, 0);
1.17 nicm 884: ttyctx.num = ny;
885: tty_write(tty_cmd_deleteline, &ttyctx);
1.11 nicm 886: return;
887: }
1.41 nicm 888:
1.11 nicm 889: if (ny > s->rlower + 1 - s->cy)
890: ny = s->rlower + 1 - s->cy;
1.1 nicm 891: if (ny == 0)
892: return;
893:
1.87 nicm 894: screen_write_initctx(ctx, &ttyctx);
1.107 nicm 895: ttyctx.bg = bg;
1.1 nicm 896:
897: if (s->cy < s->rupper || s->cy > s->rlower)
1.107 nicm 898: grid_view_delete_lines(gd, s->cy, ny, bg);
899: else
900: grid_view_delete_lines_region(gd, s->rlower, s->cy, ny, bg);
1.1 nicm 901:
1.111 nicm 902: screen_write_collect_flush(ctx, 0);
1.17 nicm 903: ttyctx.num = ny;
904: tty_write(tty_cmd_deleteline, &ttyctx);
1.1 nicm 905: }
906:
907: /* Clear line at cursor. */
908: void
1.99 nicm 909: screen_write_clearline(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 910: {
1.92 nicm 911: struct screen *s = ctx->s;
912: struct grid_line *gl;
913: struct tty_ctx ttyctx;
914: u_int sx = screen_size_x(s);
1.1 nicm 915:
1.137 nicm 916: gl = grid_get_line(s->grid, s->grid->hsize + s->cy);
1.140 nicm 917: if (gl->cellsize == 0 && COLOUR_DEFAULT(bg))
1.92 nicm 918: return;
1.1 nicm 919:
1.108 nicm 920: screen_write_initctx(ctx, &ttyctx);
921: ttyctx.bg = bg;
922:
1.99 nicm 923: grid_view_clear(s->grid, 0, s->cy, sx, 1, bg);
924:
1.109 nicm 925: screen_write_collect_clear(ctx, s->cy, 1);
1.114 nicm 926: screen_write_collect_flush(ctx, 0);
1.17 nicm 927: tty_write(tty_cmd_clearline, &ttyctx);
1.1 nicm 928: }
929:
930: /* Clear to end of line from cursor. */
931: void
1.99 nicm 932: screen_write_clearendofline(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 933: {
1.92 nicm 934: struct screen *s = ctx->s;
935: struct grid_line *gl;
936: struct tty_ctx ttyctx;
937: u_int sx = screen_size_x(s);
1.1 nicm 938:
1.137 nicm 939: gl = grid_get_line(s->grid, s->grid->hsize + s->cy);
1.140 nicm 940: if (s->cx > sx - 1 || (s->cx >= gl->cellsize && COLOUR_DEFAULT(bg)))
1.92 nicm 941: return;
1.108 nicm 942:
943: screen_write_initctx(ctx, &ttyctx);
944: ttyctx.bg = bg;
1.1 nicm 945:
1.99 nicm 946: grid_view_clear(s->grid, s->cx, s->cy, sx - s->cx, 1, bg);
947:
1.109 nicm 948: if (s->cx == 0)
949: screen_write_collect_clear(ctx, s->cy, 1);
1.114 nicm 950: screen_write_collect_flush(ctx, 0);
1.41 nicm 951: tty_write(tty_cmd_clearendofline, &ttyctx);
1.1 nicm 952: }
953:
954: /* Clear to start of line from cursor. */
955: void
1.99 nicm 956: screen_write_clearstartofline(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 957: {
958: struct screen *s = ctx->s;
1.17 nicm 959: struct tty_ctx ttyctx;
1.92 nicm 960: u_int sx = screen_size_x(s);
1.1 nicm 961:
1.87 nicm 962: screen_write_initctx(ctx, &ttyctx);
1.99 nicm 963: ttyctx.bg = bg;
1.1 nicm 964:
1.109 nicm 965: if (s->cx > sx - 1)
1.99 nicm 966: grid_view_clear(s->grid, 0, s->cy, sx, 1, bg);
1.109 nicm 967: else
1.99 nicm 968: grid_view_clear(s->grid, 0, s->cy, s->cx + 1, 1, bg);
1.1 nicm 969:
1.109 nicm 970: if (s->cx > sx - 1)
971: screen_write_collect_clear(ctx, s->cy, 1);
1.114 nicm 972: screen_write_collect_flush(ctx, 0);
1.17 nicm 973: tty_write(tty_cmd_clearstartofline, &ttyctx);
1.1 nicm 974: }
975:
1.101 nicm 976: /* Move cursor to px,py. */
1.1 nicm 977: void
1.147 nicm 978: screen_write_cursormove(struct screen_write_ctx *ctx, int px, int py,
979: int origin)
1.1 nicm 980: {
981: struct screen *s = ctx->s;
982:
1.147 nicm 983: if (origin && py != -1 && (s->mode & MODE_ORIGIN)) {
1.146 nicm 984: if ((u_int)py > s->rlower - s->rupper)
1.144 nicm 985: py = s->rlower;
986: else
987: py += s->rupper;
988: }
1.145 nicm 989:
1.146 nicm 990: if (px != -1 && (u_int)px > screen_size_x(s) - 1)
1.145 nicm 991: px = screen_size_x(s) - 1;
1.146 nicm 992: if (py != -1 && (u_int)py > screen_size_y(s) - 1)
1.145 nicm 993: py = screen_size_y(s) - 1;
1.1 nicm 994:
1.139 nicm 995: screen_write_set_cursor(ctx, px, py);
1.1 nicm 996: }
997:
1.101 nicm 998: /* Reverse index (up with scroll). */
1.1 nicm 999: void
1.122 nicm 1000: screen_write_reverseindex(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1001: {
1002: struct screen *s = ctx->s;
1.17 nicm 1003: struct tty_ctx ttyctx;
1.1 nicm 1004:
1.87 nicm 1005: screen_write_initctx(ctx, &ttyctx);
1.122 nicm 1006: ttyctx.bg = bg;
1.1 nicm 1007:
1.109 nicm 1008: if (s->cy == s->rupper)
1.122 nicm 1009: grid_view_scroll_region_down(s->grid, s->rupper, s->rlower, bg);
1.109 nicm 1010: else if (s->cy > 0)
1.139 nicm 1011: screen_write_set_cursor(ctx, -1, s->cy - 1);
1.1 nicm 1012:
1.111 nicm 1013: screen_write_collect_flush(ctx, 0);
1.17 nicm 1014: tty_write(tty_cmd_reverseindex, &ttyctx);
1.1 nicm 1015: }
1016:
1017: /* Set scroll region. */
1018: void
1.83 nicm 1019: screen_write_scrollregion(struct screen_write_ctx *ctx, u_int rupper,
1020: u_int rlower)
1.1 nicm 1021: {
1022: struct screen *s = ctx->s;
1023:
1024: if (rupper > screen_size_y(s) - 1)
1025: rupper = screen_size_y(s) - 1;
1026: if (rlower > screen_size_y(s) - 1)
1027: rlower = screen_size_y(s) - 1;
1.13 nicm 1028: if (rupper >= rlower) /* cannot be one line */
1.1 nicm 1029: return;
1030:
1.111 nicm 1031: screen_write_collect_flush(ctx, 0);
1.110 nicm 1032:
1.1 nicm 1033: /* Cursor moves to top-left. */
1.139 nicm 1034: screen_write_set_cursor(ctx, 0, 0);
1.1 nicm 1035:
1036: s->rupper = rupper;
1037: s->rlower = rlower;
1038: }
1039:
1.34 nicm 1040: /* Line feed. */
1.1 nicm 1041: void
1.122 nicm 1042: screen_write_linefeed(struct screen_write_ctx *ctx, int wrapped, u_int bg)
1.1 nicm 1043: {
1.20 nicm 1044: struct screen *s = ctx->s;
1.109 nicm 1045: struct grid *gd = s->grid;
1.20 nicm 1046: struct grid_line *gl;
1.1 nicm 1047:
1.137 nicm 1048: gl = grid_get_line(gd, gd->hsize + s->cy);
1.20 nicm 1049: if (wrapped)
1050: gl->flags |= GRID_LINE_WRAPPED;
1.73 nicm 1051: else
1052: gl->flags &= ~GRID_LINE_WRAPPED;
1.20 nicm 1053:
1.114 nicm 1054: log_debug("%s: at %u,%u (region %u-%u)", __func__, s->cx, s->cy,
1055: s->rupper, s->rlower);
1056:
1.122 nicm 1057: if (bg != ctx->bg) {
1058: screen_write_collect_flush(ctx, 1);
1059: ctx->bg = bg;
1060: }
1061:
1.92 nicm 1062: if (s->cy == s->rlower) {
1.122 nicm 1063: grid_view_scroll_region_up(gd, s->rupper, s->rlower, bg);
1.109 nicm 1064: screen_write_collect_scroll(ctx);
1.110 nicm 1065: ctx->scrolled++;
1.109 nicm 1066: } else if (s->cy < screen_size_y(s) - 1)
1.139 nicm 1067: screen_write_set_cursor(ctx, -1, s->cy + 1);
1.1 nicm 1068: }
1069:
1.110 nicm 1070: /* Scroll up. */
1071: void
1.122 nicm 1072: screen_write_scrollup(struct screen_write_ctx *ctx, u_int lines, u_int bg)
1.110 nicm 1073: {
1074: struct screen *s = ctx->s;
1075: struct grid *gd = s->grid;
1076: u_int i;
1077:
1078: if (lines == 0)
1079: lines = 1;
1080: else if (lines > s->rlower - s->rupper + 1)
1081: lines = s->rlower - s->rupper + 1;
1082:
1.122 nicm 1083: if (bg != ctx->bg) {
1084: screen_write_collect_flush(ctx, 1);
1085: ctx->bg = bg;
1086: }
1087:
1.110 nicm 1088: for (i = 0; i < lines; i++) {
1.122 nicm 1089: grid_view_scroll_region_up(gd, s->rupper, s->rlower, bg);
1.110 nicm 1090: screen_write_collect_scroll(ctx);
1091: }
1092: ctx->scrolled += lines;
1.157 nicm 1093: }
1094:
1095: /* Scroll down. */
1096: void
1097: screen_write_scrolldown(struct screen_write_ctx *ctx, u_int lines, u_int bg)
1098: {
1099: struct screen *s = ctx->s;
1100: struct grid *gd = s->grid;
1101: struct tty_ctx ttyctx;
1102: u_int i;
1103:
1104: screen_write_initctx(ctx, &ttyctx);
1105: ttyctx.bg = bg;
1106:
1107: if (lines == 0)
1108: lines = 1;
1109: else if (lines > s->rlower - s->rupper + 1)
1110: lines = s->rlower - s->rupper + 1;
1111:
1112: for (i = 0; i < lines; i++)
1113: grid_view_scroll_region_down(gd, s->rupper, s->rlower, bg);
1114:
1115: screen_write_collect_flush(ctx, 0);
1116: ttyctx.num = lines;
1117: tty_write(tty_cmd_scrolldown, &ttyctx);
1.110 nicm 1118: }
1119:
1.1 nicm 1120: /* Carriage return (cursor to start of line). */
1121: void
1122: screen_write_carriagereturn(struct screen_write_ctx *ctx)
1123: {
1.139 nicm 1124: screen_write_set_cursor(ctx, 0, -1);
1.1 nicm 1125: }
1126:
1127: /* Clear to end of screen from cursor. */
1128: void
1.99 nicm 1129: screen_write_clearendofscreen(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1130: {
1131: struct screen *s = ctx->s;
1.107 nicm 1132: struct grid *gd = s->grid;
1.17 nicm 1133: struct tty_ctx ttyctx;
1.92 nicm 1134: u_int sx = screen_size_x(s), sy = screen_size_y(s);
1.1 nicm 1135:
1.87 nicm 1136: screen_write_initctx(ctx, &ttyctx);
1.99 nicm 1137: ttyctx.bg = bg;
1.1 nicm 1138:
1.46 nicm 1139: /* Scroll into history if it is enabled and clearing entire screen. */
1.109 nicm 1140: if (s->cx == 0 && s->cy == 0 && (gd->flags & GRID_HISTORY))
1.107 nicm 1141: grid_view_clear_history(gd, bg);
1.109 nicm 1142: else {
1143: if (s->cx <= sx - 1)
1.107 nicm 1144: grid_view_clear(gd, s->cx, s->cy, sx - s->cx, 1, bg);
1145: grid_view_clear(gd, 0, s->cy + 1, sx, sy - (s->cy + 1), bg);
1.46 nicm 1146: }
1.1 nicm 1147:
1.109 nicm 1148: screen_write_collect_clear(ctx, s->cy + 1, sy - (s->cy + 1));
1.111 nicm 1149: screen_write_collect_flush(ctx, 0);
1.17 nicm 1150: tty_write(tty_cmd_clearendofscreen, &ttyctx);
1.1 nicm 1151: }
1152:
1153: /* Clear to start of screen. */
1154: void
1.105 nicm 1155: screen_write_clearstartofscreen(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1156: {
1157: struct screen *s = ctx->s;
1.17 nicm 1158: struct tty_ctx ttyctx;
1.92 nicm 1159: u_int sx = screen_size_x(s);
1.1 nicm 1160:
1.87 nicm 1161: screen_write_initctx(ctx, &ttyctx);
1.105 nicm 1162: ttyctx.bg = bg;
1.1 nicm 1163:
1.109 nicm 1164: if (s->cy > 0)
1.105 nicm 1165: grid_view_clear(s->grid, 0, 0, sx, s->cy, bg);
1.109 nicm 1166: if (s->cx > sx - 1)
1.120 nicm 1167: grid_view_clear(s->grid, 0, s->cy, sx, 1, bg);
1.109 nicm 1168: else
1.120 nicm 1169: grid_view_clear(s->grid, 0, s->cy, s->cx + 1, 1, bg);
1.1 nicm 1170:
1.109 nicm 1171: screen_write_collect_clear(ctx, 0, s->cy);
1.111 nicm 1172: screen_write_collect_flush(ctx, 0);
1.17 nicm 1173: tty_write(tty_cmd_clearstartofscreen, &ttyctx);
1.1 nicm 1174: }
1175:
1176: /* Clear entire screen. */
1177: void
1.99 nicm 1178: screen_write_clearscreen(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1179: {
1180: struct screen *s = ctx->s;
1.17 nicm 1181: struct tty_ctx ttyctx;
1.92 nicm 1182: u_int sx = screen_size_x(s), sy = screen_size_y(s);
1.1 nicm 1183:
1.87 nicm 1184: screen_write_initctx(ctx, &ttyctx);
1.99 nicm 1185: ttyctx.bg = bg;
1.1 nicm 1186:
1.46 nicm 1187: /* Scroll into history if it is enabled. */
1188: if (s->grid->flags & GRID_HISTORY)
1.99 nicm 1189: grid_view_clear_history(s->grid, bg);
1.83 nicm 1190: else
1.99 nicm 1191: grid_view_clear(s->grid, 0, 0, sx, sy, bg);
1.1 nicm 1192:
1.109 nicm 1193: screen_write_collect_clear(ctx, 0, sy);
1.17 nicm 1194: tty_write(tty_cmd_clearscreen, &ttyctx);
1.51 nicm 1195: }
1196:
1197: /* Clear entire history. */
1198: void
1199: screen_write_clearhistory(struct screen_write_ctx *ctx)
1200: {
1.156 nicm 1201: grid_clear_history(ctx->s->grid);
1.1 nicm 1202: }
1203:
1.109 nicm 1204: /* Clear a collected line. */
1205: static void
1206: screen_write_collect_clear(struct screen_write_ctx *ctx, u_int y, u_int n)
1207: {
1208: struct screen_write_collect_item *ci, *tmp;
1209: u_int i;
1210: size_t size;
1211:
1.151 nicm 1212: for (i = y; i < y + n; i++) {
1.109 nicm 1213: if (TAILQ_EMPTY(&ctx->list[i].items))
1214: continue;
1215: size = 0;
1216: TAILQ_FOREACH_SAFE(ci, &ctx->list[i].items, entry, tmp) {
1217: size += ci->used;
1218: TAILQ_REMOVE(&ctx->list[i].items, ci, entry);
1219: free(ci);
1220: }
1221: ctx->skipped += size;
1.114 nicm 1222: log_debug("%s: dropped %zu bytes (line %u)", __func__, size, i);
1.109 nicm 1223: }
1224: }
1225:
1226: /* Scroll collected lines up. */
1227: static void
1228: screen_write_collect_scroll(struct screen_write_ctx *ctx)
1229: {
1230: struct screen *s = ctx->s;
1231: struct screen_write_collect_line *cl;
1232: u_int y;
1233:
1.114 nicm 1234: log_debug("%s: at %u,%u (region %u-%u)", __func__, s->cx, s->cy,
1235: s->rupper, s->rlower);
1236:
1.109 nicm 1237: screen_write_collect_clear(ctx, s->rupper, 1);
1238: for (y = s->rupper; y < s->rlower; y++) {
1239: cl = &ctx->list[y + 1];
1240: TAILQ_CONCAT(&ctx->list[y].items, &cl->items, entry);
1241: }
1242: }
1243:
1244: /* Flush collected lines. */
1245: static void
1.111 nicm 1246: screen_write_collect_flush(struct screen_write_ctx *ctx, int scroll_only)
1.109 nicm 1247: {
1248: struct screen *s = ctx->s;
1249: struct screen_write_collect_item *ci, *tmp;
1.116 nicm 1250: u_int y, cx, cy, items = 0;
1.109 nicm 1251: struct tty_ctx ttyctx;
1.116 nicm 1252: size_t written = 0;
1.110 nicm 1253:
1254: if (ctx->scrolled != 0) {
1255: log_debug("%s: scrolled %u (region %u-%u)", __func__,
1256: ctx->scrolled, s->rupper, s->rlower);
1257: if (ctx->scrolled > s->rlower - s->rupper + 1)
1258: ctx->scrolled = s->rlower - s->rupper + 1;
1259:
1260: screen_write_initctx(ctx, &ttyctx);
1261: ttyctx.num = ctx->scrolled;
1.122 nicm 1262: ttyctx.bg = ctx->bg;
1.110 nicm 1263: tty_write(tty_cmd_scrollup, &ttyctx);
1264: }
1265: ctx->scrolled = 0;
1.122 nicm 1266: ctx->bg = 8;
1267:
1.111 nicm 1268: if (scroll_only)
1269: return;
1.109 nicm 1270:
1271: cx = s->cx; cy = s->cy;
1272: for (y = 0; y < screen_size_y(s); y++) {
1273: TAILQ_FOREACH_SAFE(ci, &ctx->list[y].items, entry, tmp) {
1.144 nicm 1274: screen_write_set_cursor(ctx, ci->x, y);
1.109 nicm 1275: screen_write_initctx(ctx, &ttyctx);
1276: ttyctx.cell = &ci->gc;
1.118 nicm 1277: ttyctx.wrapped = ci->wrapped;
1.109 nicm 1278: ttyctx.ptr = ci->data;
1279: ttyctx.num = ci->used;
1280: tty_write(tty_cmd_cells, &ttyctx);
1.116 nicm 1281:
1282: items++;
1283: written += ci->used;
1.109 nicm 1284:
1285: TAILQ_REMOVE(&ctx->list[y].items, ci, entry);
1286: free(ci);
1287: }
1288: }
1289: s->cx = cx; s->cy = cy;
1.116 nicm 1290:
1291: log_debug("%s: flushed %u items (%zu bytes)", __func__, items, written);
1292: ctx->written += written;
1.109 nicm 1293: }
1294:
1295: /* Finish and store collected cells. */
1296: void
1297: screen_write_collect_end(struct screen_write_ctx *ctx)
1298: {
1299: struct screen *s = ctx->s;
1300: struct screen_write_collect_item *ci = ctx->item;
1301: struct grid_cell gc;
1.131 nicm 1302: u_int xx;
1.109 nicm 1303:
1304: if (ci->used == 0)
1305: return;
1306: ci->data[ci->used] = '\0';
1307:
1308: ci->x = s->cx;
1309: TAILQ_INSERT_TAIL(&ctx->list[s->cy].items, ci, entry);
1310: ctx->item = xcalloc(1, sizeof *ctx->item);
1311:
1312: log_debug("%s: %u %s (at %u,%u)", __func__, ci->used, ci->data, s->cx,
1313: s->cy);
1314:
1.131 nicm 1315: if (s->cx != 0) {
1316: for (xx = s->cx; xx > 0; xx--) {
1317: grid_view_get_cell(s->grid, xx, s->cy, &gc);
1318: if (~gc.flags & GRID_FLAG_PADDING)
1319: break;
1.136 nicm 1320: grid_view_set_cell(s->grid, xx, s->cy,
1321: &grid_default_cell);
1.131 nicm 1322: }
1.139 nicm 1323: if (gc.data.width > 1) {
1.136 nicm 1324: grid_view_set_cell(s->grid, xx, s->cy,
1325: &grid_default_cell);
1.139 nicm 1326: }
1.131 nicm 1327: }
1328:
1.159 nicm 1329: grid_view_set_cells(s->grid, s->cx, s->cy, &ci->gc, ci->data, ci->used);
1.139 nicm 1330: screen_write_set_cursor(ctx, s->cx + ci->used, -1);
1.131 nicm 1331:
1332: for (xx = s->cx; xx < screen_size_x(s); xx++) {
1333: grid_view_get_cell(s->grid, xx, s->cy, &gc);
1334: if (~gc.flags & GRID_FLAG_PADDING)
1335: break;
1336: grid_view_set_cell(s->grid, xx, s->cy, &grid_default_cell);
1337: }
1.109 nicm 1338: }
1339:
1340: /* Write cell data, collecting if necessary. */
1341: void
1342: screen_write_collect_add(struct screen_write_ctx *ctx,
1343: const struct grid_cell *gc)
1344: {
1345: struct screen *s = ctx->s;
1346: struct screen_write_collect_item *ci;
1347: u_int sx = screen_size_x(s);
1348: int collect;
1349:
1350: /*
1351: * Don't need to check that the attributes and whatnot are still the
1.116 nicm 1352: * same - input_parse will end the collection when anything that isn't
1.159 nicm 1353: * a plain character is encountered.
1.109 nicm 1354: */
1355:
1356: collect = 1;
1.136 nicm 1357: if (gc->data.width != 1 || gc->data.size != 1 || *gc->data.data >= 0x7f)
1.109 nicm 1358: collect = 0;
1359: else if (gc->attr & GRID_ATTR_CHARSET)
1360: collect = 0;
1361: else if (~s->mode & MODE_WRAP)
1362: collect = 0;
1363: else if (s->mode & MODE_INSERT)
1364: collect = 0;
1.138 nicm 1365: else if (s->sel != NULL)
1.109 nicm 1366: collect = 0;
1367: if (!collect) {
1368: screen_write_collect_end(ctx);
1.116 nicm 1369: screen_write_collect_flush(ctx, 0);
1.109 nicm 1370: screen_write_cell(ctx, gc);
1371: return;
1372: }
1373: ctx->cells++;
1374:
1375: if (s->cx > sx - 1 || ctx->item->used > sx - 1 - s->cx)
1376: screen_write_collect_end(ctx);
1.118 nicm 1377: ci = ctx->item; /* may have changed */
1378:
1.109 nicm 1379: if (s->cx > sx - 1) {
1.114 nicm 1380: log_debug("%s: wrapped at %u,%u", __func__, s->cx, s->cy);
1.118 nicm 1381: ci->wrapped = 1;
1.122 nicm 1382: screen_write_linefeed(ctx, 1, 8);
1.139 nicm 1383: screen_write_set_cursor(ctx, 0, -1);
1.109 nicm 1384: }
1385:
1386: if (ci->used == 0)
1387: memcpy(&ci->gc, gc, sizeof ci->gc);
1388: ci->data[ci->used++] = gc->data.data[0];
1389: if (ci->used == (sizeof ci->data) - 1)
1390: screen_write_collect_end(ctx);
1391: }
1392:
1.1 nicm 1393: /* Write cell data. */
1394: void
1.60 nicm 1395: screen_write_cell(struct screen_write_ctx *ctx, const struct grid_cell *gc)
1.1 nicm 1396: {
1397: struct screen *s = ctx->s;
1398: struct grid *gd = s->grid;
1.109 nicm 1399: struct grid_line *gl;
1400: struct grid_cell_entry *gce;
1401: struct grid_cell tmp_gc, now_gc;
1.15 nicm 1402: struct tty_ctx ttyctx;
1.92 nicm 1403: u_int sx = screen_size_x(s), sy = screen_size_y(s);
1.115 nicm 1404: u_int width = gc->data.width, xx, last, cx, cy;
1.109 nicm 1405: int selected, skip = 1;
1.1 nicm 1406:
1.109 nicm 1407: /* Ignore padding cells. */
1.1 nicm 1408: if (gc->flags & GRID_FLAG_PADDING)
1409: return;
1.109 nicm 1410: ctx->cells++;
1.32 nicm 1411:
1.109 nicm 1412: /* If the width is zero, combine onto the previous character. */
1.1 nicm 1413: if (width == 0) {
1.112 nicm 1414: screen_write_collect_flush(ctx, 0);
1.104 nicm 1415: if ((gc = screen_write_combine(ctx, &gc->data, &xx)) != 0) {
1.115 nicm 1416: cx = s->cx; cy = s->cy;
1.144 nicm 1417: screen_write_set_cursor(ctx, xx, s->cy);
1.87 nicm 1418: screen_write_initctx(ctx, &ttyctx);
1.104 nicm 1419: ttyctx.cell = gc;
1420: tty_write(tty_cmd_cell, &ttyctx);
1.115 nicm 1421: s->cx = cx; s->cy = cy;
1.1 nicm 1422: }
1423: return;
1424: }
1.112 nicm 1425:
1426: /* Flush any existing scrolling. */
1427: screen_write_collect_flush(ctx, 1);
1.1 nicm 1428:
1.109 nicm 1429: /* If this character doesn't fit, ignore it. */
1430: if ((~s->mode & MODE_WRAP) &&
1431: width > 1 &&
1432: (width > sx || (s->cx != sx && s->cx > sx - width)))
1433: return;
1434:
1.6 nicm 1435: /* If in insert mode, make space for the cells. */
1.98 nicm 1436: if (s->mode & MODE_INSERT) {
1.109 nicm 1437: grid_view_insert_cells(s->grid, s->cx, s->cy, width, 8);
1438: skip = 0;
1439: }
1.6 nicm 1440:
1.20 nicm 1441: /* Check this will fit on the current line and wrap if not. */
1.92 nicm 1442: if ((s->mode & MODE_WRAP) && s->cx > sx - width) {
1.128 nicm 1443: log_debug("%s: wrapped at %u,%u", __func__, s->cx, s->cy);
1.122 nicm 1444: screen_write_linefeed(ctx, 1, 8);
1.139 nicm 1445: screen_write_set_cursor(ctx, 0, -1);
1.128 nicm 1446: screen_write_collect_flush(ctx, 1);
1.1 nicm 1447: }
1448:
1.64 nicm 1449: /* Sanity check cursor position. */
1.92 nicm 1450: if (s->cx > sx - width || s->cy > sy - 1)
1.1 nicm 1451: return;
1.106 nicm 1452: screen_write_initctx(ctx, &ttyctx);
1453:
1.1 nicm 1454: /* Handle overwriting of UTF-8 characters. */
1.137 nicm 1455: gl = grid_get_line(s->grid, s->grid->hsize + s->cy);
1.92 nicm 1456: if (gl->flags & GRID_LINE_EXTENDED) {
1457: grid_view_get_cell(gd, s->cx, s->cy, &now_gc);
1458: if (screen_write_overwrite(ctx, &now_gc, width))
1459: skip = 0;
1460: }
1.1 nicm 1461:
1462: /*
1463: * If the new character is UTF-8 wide, fill in padding cells. Have
1464: * already ensured there is enough room.
1465: */
1.89 nicm 1466: for (xx = s->cx + 1; xx < s->cx + width; xx++) {
1.131 nicm 1467: log_debug("%s: new padding at %u,%u", __func__, xx, s->cy);
1.88 nicm 1468: grid_view_set_cell(gd, xx, s->cy, &screen_write_pad_cell);
1.89 nicm 1469: skip = 0;
1470: }
1471:
1472: /* If no change, do not draw. */
1.92 nicm 1473: if (skip) {
1474: if (s->cx >= gl->cellsize)
1475: skip = grid_cells_equal(gc, &grid_default_cell);
1476: else {
1477: gce = &gl->celldata[s->cx];
1478: if (gce->flags & GRID_FLAG_EXTENDED)
1479: skip = 0;
1.95 nicm 1480: else if (gc->flags != gce->flags)
1.92 nicm 1481: skip = 0;
1482: else if (gc->attr != gce->data.attr)
1483: skip = 0;
1484: else if (gc->fg != gce->data.fg)
1485: skip = 0;
1486: else if (gc->bg != gce->data.bg)
1487: skip = 0;
1.95 nicm 1488: else if (gc->data.width != 1)
1489: skip = 0;
1.109 nicm 1490: else if (gc->data.size != 1)
1491: skip = 0;
1.95 nicm 1492: else if (gce->data.data != gc->data.data[0])
1.92 nicm 1493: skip = 0;
1494: }
1495: }
1.1 nicm 1496:
1.127 nicm 1497: /* Update the selected flag and set the cell. */
1.90 nicm 1498: selected = screen_check_selection(s, s->cx, s->cy);
1.109 nicm 1499: if (selected && (~gc->flags & GRID_FLAG_SELECTED)) {
1.90 nicm 1500: memcpy(&tmp_gc, gc, sizeof tmp_gc);
1501: tmp_gc.flags |= GRID_FLAG_SELECTED;
1502: grid_view_set_cell(gd, s->cx, s->cy, &tmp_gc);
1.109 nicm 1503: } else if (!selected && (gc->flags & GRID_FLAG_SELECTED)) {
1.90 nicm 1504: memcpy(&tmp_gc, gc, sizeof tmp_gc);
1505: tmp_gc.flags &= ~GRID_FLAG_SELECTED;
1506: grid_view_set_cell(gd, s->cx, s->cy, &tmp_gc);
1507: } else if (!skip)
1.89 nicm 1508: grid_view_set_cell(gd, s->cx, s->cy, gc);
1.109 nicm 1509: if (selected)
1510: skip = 0;
1.1 nicm 1511:
1.64 nicm 1512: /*
1513: * Move the cursor. If not wrapping, stick at the last character and
1514: * replace it.
1515: */
1.65 nicm 1516: last = !(s->mode & MODE_WRAP);
1.92 nicm 1517: if (s->cx <= sx - last - width)
1.139 nicm 1518: screen_write_set_cursor(ctx, s->cx + width, -1);
1.64 nicm 1519: else
1.139 nicm 1520: screen_write_set_cursor(ctx, sx - last, -1);
1.1 nicm 1521:
1.89 nicm 1522: /* Create space for character in insert mode. */
1.109 nicm 1523: if (s->mode & MODE_INSERT) {
1.113 nicm 1524: screen_write_collect_flush(ctx, 0);
1.17 nicm 1525: ttyctx.num = width;
1526: tty_write(tty_cmd_insertcharacter, &ttyctx);
1527: }
1.89 nicm 1528:
1529: /* Write to the screen. */
1.109 nicm 1530: if (!skip) {
1531: if (selected) {
1532: screen_select_cell(s, &tmp_gc, gc);
1533: ttyctx.cell = &tmp_gc;
1534: } else
1535: ttyctx.cell = gc;
1.16 nicm 1536: tty_write(tty_cmd_cell, &ttyctx);
1.92 nicm 1537: ctx->written++;
1538: } else
1539: ctx->skipped++;
1.35 nicm 1540: }
1541:
1542: /* Combine a UTF-8 zero-width character onto the previous. */
1.104 nicm 1543: static const struct grid_cell *
1544: screen_write_combine(struct screen_write_ctx *ctx, const struct utf8_data *ud,
1545: u_int *xx)
1.35 nicm 1546: {
1547: struct screen *s = ctx->s;
1548: struct grid *gd = s->grid;
1.104 nicm 1549: static struct grid_cell gc;
1550: u_int n;
1.35 nicm 1551:
1552: /* Can't combine if at 0. */
1553: if (s->cx == 0)
1.104 nicm 1554: return (NULL);
1.35 nicm 1555:
1.60 nicm 1556: /* Empty data is out. */
1557: if (ud->size == 0)
1.37 nicm 1558: fatalx("UTF-8 data empty");
1559:
1.60 nicm 1560: /* Retrieve the previous cell. */
1.119 nicm 1561: for (n = 1; n <= s->cx; n++) {
1.104 nicm 1562: grid_view_get_cell(gd, s->cx - n, s->cy, &gc);
1563: if (~gc.flags & GRID_FLAG_PADDING)
1564: break;
1565: }
1.119 nicm 1566: if (n > s->cx)
1.104 nicm 1567: return (NULL);
1568: *xx = s->cx - n;
1.35 nicm 1569:
1.60 nicm 1570: /* Check there is enough space. */
1.77 nicm 1571: if (gc.data.size + ud->size > sizeof gc.data.data)
1.104 nicm 1572: return (NULL);
1573:
1574: log_debug("%s: %.*s onto %.*s at %u,%u", __func__, (int)ud->size,
1575: ud->data, (int)gc.data.size, gc.data.data, *xx, s->cy);
1.35 nicm 1576:
1.77 nicm 1577: /* Append the data. */
1578: memcpy(gc.data.data + gc.data.size, ud->data, ud->size);
1579: gc.data.size += ud->size;
1580:
1581: /* Set the new cell. */
1.104 nicm 1582: grid_view_set_cell(gd, *xx, s->cy, &gc);
1.35 nicm 1583:
1.104 nicm 1584: return (&gc);
1.1 nicm 1585: }
1586:
1587: /*
1588: * UTF-8 wide characters are a bit of an annoyance. They take up more than one
1589: * cell on the screen, so following cells must not be drawn by marking them as
1590: * padding.
1591: *
1592: * So far, so good. The problem is, when overwriting a padding cell, or a UTF-8
1593: * character, it is necessary to also overwrite any other cells which covered
1594: * by the same character.
1595: */
1.89 nicm 1596: static int
1597: screen_write_overwrite(struct screen_write_ctx *ctx, struct grid_cell *gc,
1598: u_int width)
1.1 nicm 1599: {
1600: struct screen *s = ctx->s;
1601: struct grid *gd = s->grid;
1.89 nicm 1602: struct grid_cell tmp_gc;
1.1 nicm 1603: u_int xx;
1.89 nicm 1604: int done = 0;
1.1 nicm 1605:
1.89 nicm 1606: if (gc->flags & GRID_FLAG_PADDING) {
1.1 nicm 1607: /*
1608: * A padding cell, so clear any following and leading padding
1609: * cells back to the character. Don't overwrite the current
1610: * cell as that happens later anyway.
1611: */
1612: xx = s->cx + 1;
1613: while (--xx > 0) {
1.89 nicm 1614: grid_view_get_cell(gd, xx, s->cy, &tmp_gc);
1615: if (~tmp_gc.flags & GRID_FLAG_PADDING)
1.1 nicm 1616: break;
1.131 nicm 1617: log_debug("%s: padding at %u,%u", __func__, xx, s->cy);
1.1 nicm 1618: grid_view_set_cell(gd, xx, s->cy, &grid_default_cell);
1619: }
1620:
1621: /* Overwrite the character at the start of this padding. */
1.131 nicm 1622: log_debug("%s: character at %u,%u", __func__, xx, s->cy);
1.1 nicm 1623: grid_view_set_cell(gd, xx, s->cy, &grid_default_cell);
1.89 nicm 1624: done = 1;
1.43 nicm 1625: }
1.1 nicm 1626:
1.43 nicm 1627: /*
1.95 nicm 1628: * Overwrite any padding cells that belong to any UTF-8 characters
1629: * we'll be overwriting with the current character.
1.43 nicm 1630: */
1.95 nicm 1631: if (width != 1 ||
1632: gc->data.width != 1 ||
1633: gc->flags & GRID_FLAG_PADDING) {
1.89 nicm 1634: xx = s->cx + width - 1;
1635: while (++xx < screen_size_x(s)) {
1636: grid_view_get_cell(gd, xx, s->cy, &tmp_gc);
1637: if (~tmp_gc.flags & GRID_FLAG_PADDING)
1638: break;
1.160 ! nicm 1639: log_debug("%s: overwrite at %u,%u", __func__, xx,
! 1640: s->cy);
1.89 nicm 1641: grid_view_set_cell(gd, xx, s->cy, &grid_default_cell);
1642: done = 1;
1643: }
1.1 nicm 1644: }
1.89 nicm 1645:
1646: return (done);
1.50 nicm 1647: }
1648:
1.107 nicm 1649: /* Set external clipboard. */
1.50 nicm 1650: void
1651: screen_write_setselection(struct screen_write_ctx *ctx, u_char *str, u_int len)
1652: {
1653: struct tty_ctx ttyctx;
1654:
1.87 nicm 1655: screen_write_initctx(ctx, &ttyctx);
1.50 nicm 1656: ttyctx.ptr = str;
1657: ttyctx.num = len;
1658:
1659: tty_write(tty_cmd_setselection, &ttyctx);
1.47 nicm 1660: }
1661:
1.107 nicm 1662: /* Write unmodified string. */
1.47 nicm 1663: void
1664: screen_write_rawstring(struct screen_write_ctx *ctx, u_char *str, u_int len)
1665: {
1.87 nicm 1666: struct tty_ctx ttyctx;
1.47 nicm 1667:
1.87 nicm 1668: screen_write_initctx(ctx, &ttyctx);
1.47 nicm 1669: ttyctx.ptr = str;
1670: ttyctx.num = len;
1671:
1672: tty_write(tty_cmd_rawstring, &ttyctx);
1.1 nicm 1673: }
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