Annotation of src/usr.bin/tmux/screen-write.c, Revision 1.161
1.161 ! nicm 1: /* $OpenBSD: screen-write.c,v 1.160 2019/11/28 10:17:22 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
1.161 ! nicm 412: screen_write_menu(struct screen_write_ctx *ctx, struct menu *menu,
! 413: int choice, const struct grid_cell *choice_gc)
1.152 nicm 414: {
415: struct screen *s = ctx->s;
1.161 ! nicm 416: struct grid_cell default_gc;
! 417: const struct grid_cell *gc = &default_gc;
1.152 nicm 418: u_int cx, cy, i, j;
1.153 nicm 419: const char *name;
1.152 nicm 420:
421: cx = s->cx;
422: cy = s->cy;
423:
1.161 ! nicm 424: memcpy(&default_gc, &grid_default_cell, sizeof default_gc);
1.152 nicm 425:
426: screen_write_box(ctx, menu->width + 4, menu->count + 2);
427: screen_write_cursormove(ctx, cx + 2, cy, 0);
1.161 ! nicm 428: format_draw(ctx, &default_gc, menu->width, menu->title, NULL);
1.152 nicm 429:
430: for (i = 0; i < menu->count; i++) {
1.153 nicm 431: name = menu->items[i].name;
432: if (name == NULL) {
1.152 nicm 433: screen_write_cursormove(ctx, cx, cy + 1 + i, 0);
434: screen_write_hline(ctx, menu->width + 4, 1, 1);
435: } else {
1.153 nicm 436: if (choice >= 0 && i == (u_int)choice && *name != '-')
1.161 ! nicm 437: gc = choice_gc;
1.152 nicm 438: screen_write_cursormove(ctx, cx + 2, cy + 1 + i, 0);
439: for (j = 0; j < menu->width; j++)
1.161 ! nicm 440: screen_write_putc(ctx, gc, ' ');
1.152 nicm 441: screen_write_cursormove(ctx, cx + 2, cy + 1 + i, 0);
1.153 nicm 442: if (*name == '-') {
443: name++;
1.161 ! nicm 444: default_gc.attr |= GRID_ATTR_DIM;
! 445: format_draw(ctx, gc, menu->width, name, NULL);
! 446: default_gc.attr &= ~GRID_ATTR_DIM;
1.153 nicm 447: } else
1.161 ! nicm 448: format_draw(ctx, gc, menu->width, name, NULL);
! 449: gc = &default_gc;
1.152 nicm 450: }
451: }
1.125 nicm 452:
1.144 nicm 453: screen_write_set_cursor(ctx, cx, cy);
1.125 nicm 454: }
455:
456: /* Draw a box on screen. */
457: void
458: screen_write_box(struct screen_write_ctx *ctx, u_int nx, u_int ny)
459: {
460: struct screen *s = ctx->s;
461: struct grid_cell gc;
462: u_int cx, cy, i;
463:
464: cx = s->cx;
465: cy = s->cy;
466:
467: memcpy(&gc, &grid_default_cell, sizeof gc);
468: gc.attr |= GRID_ATTR_CHARSET;
469:
470: screen_write_putc(ctx, &gc, 'l');
471: for (i = 1; i < nx - 1; i++)
472: screen_write_putc(ctx, &gc, 'q');
473: screen_write_putc(ctx, &gc, 'k');
474:
1.144 nicm 475: screen_write_set_cursor(ctx, cx, cy + ny - 1);
1.125 nicm 476: screen_write_putc(ctx, &gc, 'm');
477: for (i = 1; i < nx - 1; i++)
478: screen_write_putc(ctx, &gc, 'q');
479: screen_write_putc(ctx, &gc, 'j');
480:
481: for (i = 1; i < ny - 1; i++) {
1.144 nicm 482: screen_write_set_cursor(ctx, cx, cy + i);
1.125 nicm 483: screen_write_putc(ctx, &gc, 'x');
484: }
485: for (i = 1; i < ny - 1; i++) {
1.144 nicm 486: screen_write_set_cursor(ctx, cx + nx - 1, cy + i);
1.125 nicm 487: screen_write_putc(ctx, &gc, 'x');
488: }
489:
1.144 nicm 490: screen_write_set_cursor(ctx, cx, cy);
1.125 nicm 491: }
492:
1.132 nicm 493: /*
494: * Write a preview version of a window. Assumes target area is big enough and
495: * already cleared.
496: */
1.125 nicm 497: void
498: screen_write_preview(struct screen_write_ctx *ctx, struct screen *src, u_int nx,
499: u_int ny)
500: {
501: struct screen *s = ctx->s;
502: struct grid_cell gc;
503: u_int cx, cy, px, py;
504:
505: cx = s->cx;
506: cy = s->cy;
507:
508: /*
509: * If the cursor is on, pick the area around the cursor, otherwise use
510: * the top left.
511: */
512: if (src->mode & MODE_CURSOR) {
513: px = src->cx;
514: if (px < nx / 3)
515: px = 0;
516: else
517: px = px - nx / 3;
518: if (px + nx > screen_size_x(src)) {
519: if (nx > screen_size_x(src))
520: px = 0;
521: else
522: px = screen_size_x(src) - nx;
523: }
524: py = src->cy;
525: if (py < ny / 3)
526: py = 0;
527: else
528: py = py - ny / 3;
529: if (py + ny > screen_size_y(src)) {
530: if (ny > screen_size_y(src))
531: py = 0;
532: else
533: py = screen_size_y(src) - ny;
534: }
535: } else {
536: px = 0;
537: py = 0;
538: }
539:
1.132 nicm 540: screen_write_fast_copy(ctx, src, px, src->grid->hsize + py, nx, ny);
1.125 nicm 541:
542: if (src->mode & MODE_CURSOR) {
543: grid_view_get_cell(src->grid, src->cx, src->cy, &gc);
544: gc.attr |= GRID_ATTR_REVERSE;
1.144 nicm 545: screen_write_set_cursor(ctx, cx + (src->cx - px),
1.125 nicm 546: cy + (src->cy - py));
547: screen_write_cell(ctx, &gc);
1.1 nicm 548: }
549: }
550:
1.17 nicm 551: /* Set up context for TTY command. */
1.87 nicm 552: static void
553: screen_write_initctx(struct screen_write_ctx *ctx, struct tty_ctx *ttyctx)
1.1 nicm 554: {
1.87 nicm 555: struct screen *s = ctx->s;
1.123 nicm 556:
557: memset(ttyctx, 0, sizeof *ttyctx);
1.1 nicm 558:
1.17 nicm 559: ttyctx->wp = ctx->wp;
1.1 nicm 560:
1.17 nicm 561: ttyctx->ocx = s->cx;
562: ttyctx->ocy = s->cy;
563:
564: ttyctx->orlower = s->rlower;
565: ttyctx->orupper = s->rupper;
1.87 nicm 566: }
1.31 nicm 567:
1.61 nicm 568: /* Set a mode. */
569: void
570: screen_write_mode_set(struct screen_write_ctx *ctx, int mode)
571: {
572: struct screen *s = ctx->s;
573:
574: s->mode |= mode;
575: }
576:
577: /* Clear a mode. */
578: void
579: screen_write_mode_clear(struct screen_write_ctx *ctx, int mode)
580: {
581: struct screen *s = ctx->s;
582:
583: s->mode &= ~mode;
584: }
585:
1.1 nicm 586: /* Cursor up by ny. */
587: void
588: screen_write_cursorup(struct screen_write_ctx *ctx, u_int ny)
589: {
590: struct screen *s = ctx->s;
1.139 nicm 591: u_int cx = s->cx, cy = s->cy;
1.1 nicm 592:
593: if (ny == 0)
594: ny = 1;
595:
1.139 nicm 596: if (cy < s->rupper) {
1.12 nicm 597: /* Above region. */
1.139 nicm 598: if (ny > cy)
599: ny = cy;
1.12 nicm 600: } else {
601: /* Below region. */
1.139 nicm 602: if (ny > cy - s->rupper)
603: ny = cy - s->rupper;
1.12 nicm 604: }
1.139 nicm 605: if (cx == screen_size_x(s))
606: cx--;
607:
608: cy -= ny;
1.1 nicm 609:
1.139 nicm 610: screen_write_set_cursor(ctx, cx, cy);
1.1 nicm 611: }
612:
613: /* Cursor down by ny. */
614: void
615: screen_write_cursordown(struct screen_write_ctx *ctx, u_int ny)
616: {
617: struct screen *s = ctx->s;
1.139 nicm 618: u_int cx = s->cx, cy = s->cy;
1.1 nicm 619:
620: if (ny == 0)
621: ny = 1;
622:
1.139 nicm 623: if (cy > s->rlower) {
1.12 nicm 624: /* Below region. */
1.139 nicm 625: if (ny > screen_size_y(s) - 1 - cy)
626: ny = screen_size_y(s) - 1 - cy;
1.12 nicm 627: } else {
628: /* Above region. */
1.139 nicm 629: if (ny > s->rlower - cy)
630: ny = s->rlower - cy;
1.12 nicm 631: }
1.139 nicm 632: if (cx == screen_size_x(s))
633: cx--;
634: else if (ny == 0)
1.1 nicm 635: return;
636:
1.139 nicm 637: cy += ny;
638:
639: screen_write_set_cursor(ctx, cx, cy);
1.1 nicm 640: }
641:
1.101 nicm 642: /* Cursor right by nx. */
1.1 nicm 643: void
644: screen_write_cursorright(struct screen_write_ctx *ctx, u_int nx)
645: {
646: struct screen *s = ctx->s;
1.139 nicm 647: u_int cx = s->cx, cy = s->cy;
1.1 nicm 648:
649: if (nx == 0)
650: nx = 1;
651:
1.139 nicm 652: if (nx > screen_size_x(s) - 1 - cx)
653: nx = screen_size_x(s) - 1 - cx;
1.1 nicm 654: if (nx == 0)
655: return;
656:
1.139 nicm 657: cx += nx;
658:
659: screen_write_set_cursor(ctx, cx, cy);
1.1 nicm 660: }
661:
662: /* Cursor left by nx. */
663: void
664: screen_write_cursorleft(struct screen_write_ctx *ctx, u_int nx)
665: {
666: struct screen *s = ctx->s;
1.139 nicm 667: u_int cx = s->cx, cy = s->cy;
1.1 nicm 668:
669: if (nx == 0)
670: nx = 1;
671:
1.139 nicm 672: if (nx > cx)
673: nx = cx;
1.1 nicm 674: if (nx == 0)
675: return;
676:
1.139 nicm 677: cx -= nx;
678:
679: screen_write_set_cursor(ctx, cx, cy);
1.5 nicm 680: }
681:
1.29 nicm 682: /* Backspace; cursor left unless at start of wrapped line when can move up. */
683: void
684: screen_write_backspace(struct screen_write_ctx *ctx)
685: {
686: struct screen *s = ctx->s;
687: struct grid_line *gl;
1.139 nicm 688: u_int cx = s->cx, cy = s->cy;
1.29 nicm 689:
1.139 nicm 690: if (cx == 0) {
691: if (cy == 0)
1.29 nicm 692: return;
1.139 nicm 693: gl = grid_get_line(s->grid, s->grid->hsize + cy - 1);
1.29 nicm 694: if (gl->flags & GRID_LINE_WRAPPED) {
1.139 nicm 695: cy--;
696: cx = screen_size_x(s) - 1;
1.29 nicm 697: }
698: } else
1.139 nicm 699: cx--;
700:
701: screen_write_set_cursor(ctx, cx, cy);
1.29 nicm 702: }
703:
1.5 nicm 704: /* VT100 alignment test. */
705: void
706: screen_write_alignmenttest(struct screen_write_ctx *ctx)
707: {
708: struct screen *s = ctx->s;
1.17 nicm 709: struct tty_ctx ttyctx;
1.5 nicm 710: struct grid_cell gc;
711: u_int xx, yy;
712:
713: memcpy(&gc, &grid_default_cell, sizeof gc);
1.77 nicm 714: utf8_set(&gc.data, 'E');
1.7 ray 715:
1.5 nicm 716: for (yy = 0; yy < screen_size_y(s); yy++) {
717: for (xx = 0; xx < screen_size_x(s); xx++)
718: grid_view_set_cell(s->grid, xx, yy, &gc);
719: }
1.7 ray 720:
1.139 nicm 721: screen_write_set_cursor(ctx, 0, 0);
1.5 nicm 722:
723: s->rupper = 0;
724: s->rlower = screen_size_y(s) - 1;
1.143 nicm 725:
726: screen_write_initctx(ctx, &ttyctx);
1.5 nicm 727:
1.109 nicm 728: screen_write_collect_clear(ctx, 0, screen_size_y(s) - 1);
1.17 nicm 729: tty_write(tty_cmd_alignmenttest, &ttyctx);
1.1 nicm 730: }
731:
732: /* Insert nx characters. */
733: void
1.99 nicm 734: screen_write_insertcharacter(struct screen_write_ctx *ctx, u_int nx, u_int bg)
1.1 nicm 735: {
736: struct screen *s = ctx->s;
1.17 nicm 737: struct tty_ctx ttyctx;
1.1 nicm 738:
739: if (nx == 0)
740: nx = 1;
741:
1.9 nicm 742: if (nx > screen_size_x(s) - s->cx)
743: nx = screen_size_x(s) - s->cx;
1.1 nicm 744: if (nx == 0)
745: return;
746:
1.107 nicm 747: if (s->cx > screen_size_x(s) - 1)
748: return;
749:
1.87 nicm 750: screen_write_initctx(ctx, &ttyctx);
1.107 nicm 751: ttyctx.bg = bg;
1.1 nicm 752:
1.107 nicm 753: grid_view_insert_cells(s->grid, s->cx, s->cy, nx, bg);
1.1 nicm 754:
1.111 nicm 755: screen_write_collect_flush(ctx, 0);
1.17 nicm 756: ttyctx.num = nx;
757: tty_write(tty_cmd_insertcharacter, &ttyctx);
1.1 nicm 758: }
759:
760: /* Delete nx characters. */
761: void
1.99 nicm 762: screen_write_deletecharacter(struct screen_write_ctx *ctx, u_int nx, u_int bg)
1.1 nicm 763: {
764: struct screen *s = ctx->s;
1.17 nicm 765: struct tty_ctx ttyctx;
1.1 nicm 766:
767: if (nx == 0)
768: nx = 1;
769:
1.9 nicm 770: if (nx > screen_size_x(s) - s->cx)
771: nx = screen_size_x(s) - s->cx;
1.1 nicm 772: if (nx == 0)
773: return;
774:
1.107 nicm 775: if (s->cx > screen_size_x(s) - 1)
776: return;
777:
1.87 nicm 778: screen_write_initctx(ctx, &ttyctx);
1.107 nicm 779: ttyctx.bg = bg;
1.1 nicm 780:
1.107 nicm 781: grid_view_delete_cells(s->grid, s->cx, s->cy, nx, bg);
1.1 nicm 782:
1.111 nicm 783: screen_write_collect_flush(ctx, 0);
1.17 nicm 784: ttyctx.num = nx;
785: tty_write(tty_cmd_deletecharacter, &ttyctx);
1.59 nicm 786: }
787:
788: /* Clear nx characters. */
789: void
1.121 nicm 790: screen_write_clearcharacter(struct screen_write_ctx *ctx, u_int nx, u_int bg)
1.59 nicm 791: {
792: struct screen *s = ctx->s;
793: struct tty_ctx ttyctx;
794:
795: if (nx == 0)
796: nx = 1;
797:
798: if (nx > screen_size_x(s) - s->cx)
799: nx = screen_size_x(s) - s->cx;
800: if (nx == 0)
801: return;
802:
1.107 nicm 803: if (s->cx > screen_size_x(s) - 1)
804: return;
805:
1.87 nicm 806: screen_write_initctx(ctx, &ttyctx);
1.121 nicm 807: ttyctx.bg = bg;
1.59 nicm 808:
1.124 nicm 809: grid_view_clear(s->grid, s->cx, s->cy, nx, 1, bg);
1.59 nicm 810:
1.111 nicm 811: screen_write_collect_flush(ctx, 0);
1.59 nicm 812: ttyctx.num = nx;
813: tty_write(tty_cmd_clearcharacter, &ttyctx);
1.1 nicm 814: }
815:
816: /* Insert ny lines. */
817: void
1.99 nicm 818: screen_write_insertline(struct screen_write_ctx *ctx, u_int ny, u_int bg)
1.1 nicm 819: {
820: struct screen *s = ctx->s;
1.107 nicm 821: struct grid *gd = s->grid;
1.17 nicm 822: struct tty_ctx ttyctx;
1.1 nicm 823:
824: if (ny == 0)
825: ny = 1;
826:
1.11 nicm 827: if (s->cy < s->rupper || s->cy > s->rlower) {
828: if (ny > screen_size_y(s) - s->cy)
829: ny = screen_size_y(s) - s->cy;
830: if (ny == 0)
831: return;
832:
1.87 nicm 833: screen_write_initctx(ctx, &ttyctx);
1.107 nicm 834: ttyctx.bg = bg;
1.11 nicm 835:
1.107 nicm 836: grid_view_insert_lines(gd, s->cy, ny, bg);
1.11 nicm 837:
1.111 nicm 838: screen_write_collect_flush(ctx, 0);
1.17 nicm 839: ttyctx.num = ny;
840: tty_write(tty_cmd_insertline, &ttyctx);
1.11 nicm 841: return;
842: }
843:
844: if (ny > s->rlower + 1 - s->cy)
845: ny = s->rlower + 1 - s->cy;
1.1 nicm 846: if (ny == 0)
847: return;
1.41 nicm 848:
1.87 nicm 849: screen_write_initctx(ctx, &ttyctx);
1.107 nicm 850: ttyctx.bg = bg;
1.1 nicm 851:
852: if (s->cy < s->rupper || s->cy > s->rlower)
1.107 nicm 853: grid_view_insert_lines(gd, s->cy, ny, bg);
854: else
855: grid_view_insert_lines_region(gd, s->rlower, s->cy, ny, bg);
1.1 nicm 856:
1.111 nicm 857: screen_write_collect_flush(ctx, 0);
1.17 nicm 858: ttyctx.num = ny;
859: tty_write(tty_cmd_insertline, &ttyctx);
1.1 nicm 860: }
861:
862: /* Delete ny lines. */
863: void
1.99 nicm 864: screen_write_deleteline(struct screen_write_ctx *ctx, u_int ny, u_int bg)
1.1 nicm 865: {
866: struct screen *s = ctx->s;
1.107 nicm 867: struct grid *gd = s->grid;
1.17 nicm 868: struct tty_ctx ttyctx;
1.1 nicm 869:
870: if (ny == 0)
871: ny = 1;
872:
1.11 nicm 873: if (s->cy < s->rupper || s->cy > s->rlower) {
874: if (ny > screen_size_y(s) - s->cy)
875: ny = screen_size_y(s) - s->cy;
876: if (ny == 0)
877: return;
878:
1.87 nicm 879: screen_write_initctx(ctx, &ttyctx);
1.107 nicm 880: ttyctx.bg = bg;
1.11 nicm 881:
1.107 nicm 882: grid_view_delete_lines(gd, s->cy, ny, bg);
1.11 nicm 883:
1.111 nicm 884: screen_write_collect_flush(ctx, 0);
1.17 nicm 885: ttyctx.num = ny;
886: tty_write(tty_cmd_deleteline, &ttyctx);
1.11 nicm 887: return;
888: }
1.41 nicm 889:
1.11 nicm 890: if (ny > s->rlower + 1 - s->cy)
891: ny = s->rlower + 1 - s->cy;
1.1 nicm 892: if (ny == 0)
893: return;
894:
1.87 nicm 895: screen_write_initctx(ctx, &ttyctx);
1.107 nicm 896: ttyctx.bg = bg;
1.1 nicm 897:
898: if (s->cy < s->rupper || s->cy > s->rlower)
1.107 nicm 899: grid_view_delete_lines(gd, s->cy, ny, bg);
900: else
901: grid_view_delete_lines_region(gd, s->rlower, s->cy, ny, bg);
1.1 nicm 902:
1.111 nicm 903: screen_write_collect_flush(ctx, 0);
1.17 nicm 904: ttyctx.num = ny;
905: tty_write(tty_cmd_deleteline, &ttyctx);
1.1 nicm 906: }
907:
908: /* Clear line at cursor. */
909: void
1.99 nicm 910: screen_write_clearline(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 911: {
1.92 nicm 912: struct screen *s = ctx->s;
913: struct grid_line *gl;
914: struct tty_ctx ttyctx;
915: u_int sx = screen_size_x(s);
1.1 nicm 916:
1.137 nicm 917: gl = grid_get_line(s->grid, s->grid->hsize + s->cy);
1.140 nicm 918: if (gl->cellsize == 0 && COLOUR_DEFAULT(bg))
1.92 nicm 919: return;
1.1 nicm 920:
1.108 nicm 921: screen_write_initctx(ctx, &ttyctx);
922: ttyctx.bg = bg;
923:
1.99 nicm 924: grid_view_clear(s->grid, 0, s->cy, sx, 1, bg);
925:
1.109 nicm 926: screen_write_collect_clear(ctx, s->cy, 1);
1.114 nicm 927: screen_write_collect_flush(ctx, 0);
1.17 nicm 928: tty_write(tty_cmd_clearline, &ttyctx);
1.1 nicm 929: }
930:
931: /* Clear to end of line from cursor. */
932: void
1.99 nicm 933: screen_write_clearendofline(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 934: {
1.92 nicm 935: struct screen *s = ctx->s;
936: struct grid_line *gl;
937: struct tty_ctx ttyctx;
938: u_int sx = screen_size_x(s);
1.1 nicm 939:
1.137 nicm 940: gl = grid_get_line(s->grid, s->grid->hsize + s->cy);
1.140 nicm 941: if (s->cx > sx - 1 || (s->cx >= gl->cellsize && COLOUR_DEFAULT(bg)))
1.92 nicm 942: return;
1.108 nicm 943:
944: screen_write_initctx(ctx, &ttyctx);
945: ttyctx.bg = bg;
1.1 nicm 946:
1.99 nicm 947: grid_view_clear(s->grid, s->cx, s->cy, sx - s->cx, 1, bg);
948:
1.109 nicm 949: if (s->cx == 0)
950: screen_write_collect_clear(ctx, s->cy, 1);
1.114 nicm 951: screen_write_collect_flush(ctx, 0);
1.41 nicm 952: tty_write(tty_cmd_clearendofline, &ttyctx);
1.1 nicm 953: }
954:
955: /* Clear to start of line from cursor. */
956: void
1.99 nicm 957: screen_write_clearstartofline(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 958: {
959: struct screen *s = ctx->s;
1.17 nicm 960: struct tty_ctx ttyctx;
1.92 nicm 961: u_int sx = screen_size_x(s);
1.1 nicm 962:
1.87 nicm 963: screen_write_initctx(ctx, &ttyctx);
1.99 nicm 964: ttyctx.bg = bg;
1.1 nicm 965:
1.109 nicm 966: if (s->cx > sx - 1)
1.99 nicm 967: grid_view_clear(s->grid, 0, s->cy, sx, 1, bg);
1.109 nicm 968: else
1.99 nicm 969: grid_view_clear(s->grid, 0, s->cy, s->cx + 1, 1, bg);
1.1 nicm 970:
1.109 nicm 971: if (s->cx > sx - 1)
972: screen_write_collect_clear(ctx, s->cy, 1);
1.114 nicm 973: screen_write_collect_flush(ctx, 0);
1.17 nicm 974: tty_write(tty_cmd_clearstartofline, &ttyctx);
1.1 nicm 975: }
976:
1.101 nicm 977: /* Move cursor to px,py. */
1.1 nicm 978: void
1.147 nicm 979: screen_write_cursormove(struct screen_write_ctx *ctx, int px, int py,
980: int origin)
1.1 nicm 981: {
982: struct screen *s = ctx->s;
983:
1.147 nicm 984: if (origin && py != -1 && (s->mode & MODE_ORIGIN)) {
1.146 nicm 985: if ((u_int)py > s->rlower - s->rupper)
1.144 nicm 986: py = s->rlower;
987: else
988: py += s->rupper;
989: }
1.145 nicm 990:
1.146 nicm 991: if (px != -1 && (u_int)px > screen_size_x(s) - 1)
1.145 nicm 992: px = screen_size_x(s) - 1;
1.146 nicm 993: if (py != -1 && (u_int)py > screen_size_y(s) - 1)
1.145 nicm 994: py = screen_size_y(s) - 1;
1.1 nicm 995:
1.139 nicm 996: screen_write_set_cursor(ctx, px, py);
1.1 nicm 997: }
998:
1.101 nicm 999: /* Reverse index (up with scroll). */
1.1 nicm 1000: void
1.122 nicm 1001: screen_write_reverseindex(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1002: {
1003: struct screen *s = ctx->s;
1.17 nicm 1004: struct tty_ctx ttyctx;
1.1 nicm 1005:
1.87 nicm 1006: screen_write_initctx(ctx, &ttyctx);
1.122 nicm 1007: ttyctx.bg = bg;
1.1 nicm 1008:
1.109 nicm 1009: if (s->cy == s->rupper)
1.122 nicm 1010: grid_view_scroll_region_down(s->grid, s->rupper, s->rlower, bg);
1.109 nicm 1011: else if (s->cy > 0)
1.139 nicm 1012: screen_write_set_cursor(ctx, -1, s->cy - 1);
1.1 nicm 1013:
1.111 nicm 1014: screen_write_collect_flush(ctx, 0);
1.17 nicm 1015: tty_write(tty_cmd_reverseindex, &ttyctx);
1.1 nicm 1016: }
1017:
1018: /* Set scroll region. */
1019: void
1.83 nicm 1020: screen_write_scrollregion(struct screen_write_ctx *ctx, u_int rupper,
1021: u_int rlower)
1.1 nicm 1022: {
1023: struct screen *s = ctx->s;
1024:
1025: if (rupper > screen_size_y(s) - 1)
1026: rupper = screen_size_y(s) - 1;
1027: if (rlower > screen_size_y(s) - 1)
1028: rlower = screen_size_y(s) - 1;
1.13 nicm 1029: if (rupper >= rlower) /* cannot be one line */
1.1 nicm 1030: return;
1031:
1.111 nicm 1032: screen_write_collect_flush(ctx, 0);
1.110 nicm 1033:
1.1 nicm 1034: /* Cursor moves to top-left. */
1.139 nicm 1035: screen_write_set_cursor(ctx, 0, 0);
1.1 nicm 1036:
1037: s->rupper = rupper;
1038: s->rlower = rlower;
1039: }
1040:
1.34 nicm 1041: /* Line feed. */
1.1 nicm 1042: void
1.122 nicm 1043: screen_write_linefeed(struct screen_write_ctx *ctx, int wrapped, u_int bg)
1.1 nicm 1044: {
1.20 nicm 1045: struct screen *s = ctx->s;
1.109 nicm 1046: struct grid *gd = s->grid;
1.20 nicm 1047: struct grid_line *gl;
1.1 nicm 1048:
1.137 nicm 1049: gl = grid_get_line(gd, gd->hsize + s->cy);
1.20 nicm 1050: if (wrapped)
1051: gl->flags |= GRID_LINE_WRAPPED;
1.73 nicm 1052: else
1053: gl->flags &= ~GRID_LINE_WRAPPED;
1.20 nicm 1054:
1.114 nicm 1055: log_debug("%s: at %u,%u (region %u-%u)", __func__, s->cx, s->cy,
1056: s->rupper, s->rlower);
1057:
1.122 nicm 1058: if (bg != ctx->bg) {
1059: screen_write_collect_flush(ctx, 1);
1060: ctx->bg = bg;
1061: }
1062:
1.92 nicm 1063: if (s->cy == s->rlower) {
1.122 nicm 1064: grid_view_scroll_region_up(gd, s->rupper, s->rlower, bg);
1.109 nicm 1065: screen_write_collect_scroll(ctx);
1.110 nicm 1066: ctx->scrolled++;
1.109 nicm 1067: } else if (s->cy < screen_size_y(s) - 1)
1.139 nicm 1068: screen_write_set_cursor(ctx, -1, s->cy + 1);
1.1 nicm 1069: }
1070:
1.110 nicm 1071: /* Scroll up. */
1072: void
1.122 nicm 1073: screen_write_scrollup(struct screen_write_ctx *ctx, u_int lines, u_int bg)
1.110 nicm 1074: {
1075: struct screen *s = ctx->s;
1076: struct grid *gd = s->grid;
1077: u_int i;
1078:
1079: if (lines == 0)
1080: lines = 1;
1081: else if (lines > s->rlower - s->rupper + 1)
1082: lines = s->rlower - s->rupper + 1;
1083:
1.122 nicm 1084: if (bg != ctx->bg) {
1085: screen_write_collect_flush(ctx, 1);
1086: ctx->bg = bg;
1087: }
1088:
1.110 nicm 1089: for (i = 0; i < lines; i++) {
1.122 nicm 1090: grid_view_scroll_region_up(gd, s->rupper, s->rlower, bg);
1.110 nicm 1091: screen_write_collect_scroll(ctx);
1092: }
1093: ctx->scrolled += lines;
1.157 nicm 1094: }
1095:
1096: /* Scroll down. */
1097: void
1098: screen_write_scrolldown(struct screen_write_ctx *ctx, u_int lines, u_int bg)
1099: {
1100: struct screen *s = ctx->s;
1101: struct grid *gd = s->grid;
1102: struct tty_ctx ttyctx;
1103: u_int i;
1104:
1105: screen_write_initctx(ctx, &ttyctx);
1106: ttyctx.bg = bg;
1107:
1108: if (lines == 0)
1109: lines = 1;
1110: else if (lines > s->rlower - s->rupper + 1)
1111: lines = s->rlower - s->rupper + 1;
1112:
1113: for (i = 0; i < lines; i++)
1114: grid_view_scroll_region_down(gd, s->rupper, s->rlower, bg);
1115:
1116: screen_write_collect_flush(ctx, 0);
1117: ttyctx.num = lines;
1118: tty_write(tty_cmd_scrolldown, &ttyctx);
1.110 nicm 1119: }
1120:
1.1 nicm 1121: /* Carriage return (cursor to start of line). */
1122: void
1123: screen_write_carriagereturn(struct screen_write_ctx *ctx)
1124: {
1.139 nicm 1125: screen_write_set_cursor(ctx, 0, -1);
1.1 nicm 1126: }
1127:
1128: /* Clear to end of screen from cursor. */
1129: void
1.99 nicm 1130: screen_write_clearendofscreen(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1131: {
1132: struct screen *s = ctx->s;
1.107 nicm 1133: struct grid *gd = s->grid;
1.17 nicm 1134: struct tty_ctx ttyctx;
1.92 nicm 1135: u_int sx = screen_size_x(s), sy = screen_size_y(s);
1.1 nicm 1136:
1.87 nicm 1137: screen_write_initctx(ctx, &ttyctx);
1.99 nicm 1138: ttyctx.bg = bg;
1.1 nicm 1139:
1.46 nicm 1140: /* Scroll into history if it is enabled and clearing entire screen. */
1.109 nicm 1141: if (s->cx == 0 && s->cy == 0 && (gd->flags & GRID_HISTORY))
1.107 nicm 1142: grid_view_clear_history(gd, bg);
1.109 nicm 1143: else {
1144: if (s->cx <= sx - 1)
1.107 nicm 1145: grid_view_clear(gd, s->cx, s->cy, sx - s->cx, 1, bg);
1146: grid_view_clear(gd, 0, s->cy + 1, sx, sy - (s->cy + 1), bg);
1.46 nicm 1147: }
1.1 nicm 1148:
1.109 nicm 1149: screen_write_collect_clear(ctx, s->cy + 1, sy - (s->cy + 1));
1.111 nicm 1150: screen_write_collect_flush(ctx, 0);
1.17 nicm 1151: tty_write(tty_cmd_clearendofscreen, &ttyctx);
1.1 nicm 1152: }
1153:
1154: /* Clear to start of screen. */
1155: void
1.105 nicm 1156: screen_write_clearstartofscreen(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1157: {
1158: struct screen *s = ctx->s;
1.17 nicm 1159: struct tty_ctx ttyctx;
1.92 nicm 1160: u_int sx = screen_size_x(s);
1.1 nicm 1161:
1.87 nicm 1162: screen_write_initctx(ctx, &ttyctx);
1.105 nicm 1163: ttyctx.bg = bg;
1.1 nicm 1164:
1.109 nicm 1165: if (s->cy > 0)
1.105 nicm 1166: grid_view_clear(s->grid, 0, 0, sx, s->cy, bg);
1.109 nicm 1167: if (s->cx > sx - 1)
1.120 nicm 1168: grid_view_clear(s->grid, 0, s->cy, sx, 1, bg);
1.109 nicm 1169: else
1.120 nicm 1170: grid_view_clear(s->grid, 0, s->cy, s->cx + 1, 1, bg);
1.1 nicm 1171:
1.109 nicm 1172: screen_write_collect_clear(ctx, 0, s->cy);
1.111 nicm 1173: screen_write_collect_flush(ctx, 0);
1.17 nicm 1174: tty_write(tty_cmd_clearstartofscreen, &ttyctx);
1.1 nicm 1175: }
1176:
1177: /* Clear entire screen. */
1178: void
1.99 nicm 1179: screen_write_clearscreen(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1180: {
1181: struct screen *s = ctx->s;
1.17 nicm 1182: struct tty_ctx ttyctx;
1.92 nicm 1183: u_int sx = screen_size_x(s), sy = screen_size_y(s);
1.1 nicm 1184:
1.87 nicm 1185: screen_write_initctx(ctx, &ttyctx);
1.99 nicm 1186: ttyctx.bg = bg;
1.1 nicm 1187:
1.46 nicm 1188: /* Scroll into history if it is enabled. */
1189: if (s->grid->flags & GRID_HISTORY)
1.99 nicm 1190: grid_view_clear_history(s->grid, bg);
1.83 nicm 1191: else
1.99 nicm 1192: grid_view_clear(s->grid, 0, 0, sx, sy, bg);
1.1 nicm 1193:
1.109 nicm 1194: screen_write_collect_clear(ctx, 0, sy);
1.17 nicm 1195: tty_write(tty_cmd_clearscreen, &ttyctx);
1.51 nicm 1196: }
1197:
1198: /* Clear entire history. */
1199: void
1200: screen_write_clearhistory(struct screen_write_ctx *ctx)
1201: {
1.156 nicm 1202: grid_clear_history(ctx->s->grid);
1.1 nicm 1203: }
1204:
1.109 nicm 1205: /* Clear a collected line. */
1206: static void
1207: screen_write_collect_clear(struct screen_write_ctx *ctx, u_int y, u_int n)
1208: {
1209: struct screen_write_collect_item *ci, *tmp;
1210: u_int i;
1211: size_t size;
1212:
1.151 nicm 1213: for (i = y; i < y + n; i++) {
1.109 nicm 1214: if (TAILQ_EMPTY(&ctx->list[i].items))
1215: continue;
1216: size = 0;
1217: TAILQ_FOREACH_SAFE(ci, &ctx->list[i].items, entry, tmp) {
1218: size += ci->used;
1219: TAILQ_REMOVE(&ctx->list[i].items, ci, entry);
1220: free(ci);
1221: }
1222: ctx->skipped += size;
1.114 nicm 1223: log_debug("%s: dropped %zu bytes (line %u)", __func__, size, i);
1.109 nicm 1224: }
1225: }
1226:
1227: /* Scroll collected lines up. */
1228: static void
1229: screen_write_collect_scroll(struct screen_write_ctx *ctx)
1230: {
1231: struct screen *s = ctx->s;
1232: struct screen_write_collect_line *cl;
1233: u_int y;
1234:
1.114 nicm 1235: log_debug("%s: at %u,%u (region %u-%u)", __func__, s->cx, s->cy,
1236: s->rupper, s->rlower);
1237:
1.109 nicm 1238: screen_write_collect_clear(ctx, s->rupper, 1);
1239: for (y = s->rupper; y < s->rlower; y++) {
1240: cl = &ctx->list[y + 1];
1241: TAILQ_CONCAT(&ctx->list[y].items, &cl->items, entry);
1242: }
1243: }
1244:
1245: /* Flush collected lines. */
1246: static void
1.111 nicm 1247: screen_write_collect_flush(struct screen_write_ctx *ctx, int scroll_only)
1.109 nicm 1248: {
1249: struct screen *s = ctx->s;
1250: struct screen_write_collect_item *ci, *tmp;
1.116 nicm 1251: u_int y, cx, cy, items = 0;
1.109 nicm 1252: struct tty_ctx ttyctx;
1.116 nicm 1253: size_t written = 0;
1.110 nicm 1254:
1255: if (ctx->scrolled != 0) {
1256: log_debug("%s: scrolled %u (region %u-%u)", __func__,
1257: ctx->scrolled, s->rupper, s->rlower);
1258: if (ctx->scrolled > s->rlower - s->rupper + 1)
1259: ctx->scrolled = s->rlower - s->rupper + 1;
1260:
1261: screen_write_initctx(ctx, &ttyctx);
1262: ttyctx.num = ctx->scrolled;
1.122 nicm 1263: ttyctx.bg = ctx->bg;
1.110 nicm 1264: tty_write(tty_cmd_scrollup, &ttyctx);
1265: }
1266: ctx->scrolled = 0;
1.122 nicm 1267: ctx->bg = 8;
1268:
1.111 nicm 1269: if (scroll_only)
1270: return;
1.109 nicm 1271:
1272: cx = s->cx; cy = s->cy;
1273: for (y = 0; y < screen_size_y(s); y++) {
1274: TAILQ_FOREACH_SAFE(ci, &ctx->list[y].items, entry, tmp) {
1.144 nicm 1275: screen_write_set_cursor(ctx, ci->x, y);
1.109 nicm 1276: screen_write_initctx(ctx, &ttyctx);
1277: ttyctx.cell = &ci->gc;
1.118 nicm 1278: ttyctx.wrapped = ci->wrapped;
1.109 nicm 1279: ttyctx.ptr = ci->data;
1280: ttyctx.num = ci->used;
1281: tty_write(tty_cmd_cells, &ttyctx);
1.116 nicm 1282:
1283: items++;
1284: written += ci->used;
1.109 nicm 1285:
1286: TAILQ_REMOVE(&ctx->list[y].items, ci, entry);
1287: free(ci);
1288: }
1289: }
1290: s->cx = cx; s->cy = cy;
1.116 nicm 1291:
1292: log_debug("%s: flushed %u items (%zu bytes)", __func__, items, written);
1293: ctx->written += written;
1.109 nicm 1294: }
1295:
1296: /* Finish and store collected cells. */
1297: void
1298: screen_write_collect_end(struct screen_write_ctx *ctx)
1299: {
1300: struct screen *s = ctx->s;
1301: struct screen_write_collect_item *ci = ctx->item;
1302: struct grid_cell gc;
1.131 nicm 1303: u_int xx;
1.109 nicm 1304:
1305: if (ci->used == 0)
1306: return;
1307: ci->data[ci->used] = '\0';
1308:
1309: ci->x = s->cx;
1310: TAILQ_INSERT_TAIL(&ctx->list[s->cy].items, ci, entry);
1311: ctx->item = xcalloc(1, sizeof *ctx->item);
1312:
1313: log_debug("%s: %u %s (at %u,%u)", __func__, ci->used, ci->data, s->cx,
1314: s->cy);
1315:
1.131 nicm 1316: if (s->cx != 0) {
1317: for (xx = s->cx; xx > 0; xx--) {
1318: grid_view_get_cell(s->grid, xx, s->cy, &gc);
1319: if (~gc.flags & GRID_FLAG_PADDING)
1320: break;
1.136 nicm 1321: grid_view_set_cell(s->grid, xx, s->cy,
1322: &grid_default_cell);
1.131 nicm 1323: }
1.139 nicm 1324: if (gc.data.width > 1) {
1.136 nicm 1325: grid_view_set_cell(s->grid, xx, s->cy,
1326: &grid_default_cell);
1.139 nicm 1327: }
1.131 nicm 1328: }
1329:
1.159 nicm 1330: grid_view_set_cells(s->grid, s->cx, s->cy, &ci->gc, ci->data, ci->used);
1.139 nicm 1331: screen_write_set_cursor(ctx, s->cx + ci->used, -1);
1.131 nicm 1332:
1333: for (xx = s->cx; xx < screen_size_x(s); xx++) {
1334: grid_view_get_cell(s->grid, xx, s->cy, &gc);
1335: if (~gc.flags & GRID_FLAG_PADDING)
1336: break;
1337: grid_view_set_cell(s->grid, xx, s->cy, &grid_default_cell);
1338: }
1.109 nicm 1339: }
1340:
1341: /* Write cell data, collecting if necessary. */
1342: void
1343: screen_write_collect_add(struct screen_write_ctx *ctx,
1344: const struct grid_cell *gc)
1345: {
1346: struct screen *s = ctx->s;
1347: struct screen_write_collect_item *ci;
1348: u_int sx = screen_size_x(s);
1349: int collect;
1350:
1351: /*
1352: * Don't need to check that the attributes and whatnot are still the
1.116 nicm 1353: * same - input_parse will end the collection when anything that isn't
1.159 nicm 1354: * a plain character is encountered.
1.109 nicm 1355: */
1356:
1357: collect = 1;
1.136 nicm 1358: if (gc->data.width != 1 || gc->data.size != 1 || *gc->data.data >= 0x7f)
1.109 nicm 1359: collect = 0;
1360: else if (gc->attr & GRID_ATTR_CHARSET)
1361: collect = 0;
1362: else if (~s->mode & MODE_WRAP)
1363: collect = 0;
1364: else if (s->mode & MODE_INSERT)
1365: collect = 0;
1.138 nicm 1366: else if (s->sel != NULL)
1.109 nicm 1367: collect = 0;
1368: if (!collect) {
1369: screen_write_collect_end(ctx);
1.116 nicm 1370: screen_write_collect_flush(ctx, 0);
1.109 nicm 1371: screen_write_cell(ctx, gc);
1372: return;
1373: }
1374: ctx->cells++;
1375:
1376: if (s->cx > sx - 1 || ctx->item->used > sx - 1 - s->cx)
1377: screen_write_collect_end(ctx);
1.118 nicm 1378: ci = ctx->item; /* may have changed */
1379:
1.109 nicm 1380: if (s->cx > sx - 1) {
1.114 nicm 1381: log_debug("%s: wrapped at %u,%u", __func__, s->cx, s->cy);
1.118 nicm 1382: ci->wrapped = 1;
1.122 nicm 1383: screen_write_linefeed(ctx, 1, 8);
1.139 nicm 1384: screen_write_set_cursor(ctx, 0, -1);
1.109 nicm 1385: }
1386:
1387: if (ci->used == 0)
1388: memcpy(&ci->gc, gc, sizeof ci->gc);
1389: ci->data[ci->used++] = gc->data.data[0];
1390: if (ci->used == (sizeof ci->data) - 1)
1391: screen_write_collect_end(ctx);
1392: }
1393:
1.1 nicm 1394: /* Write cell data. */
1395: void
1.60 nicm 1396: screen_write_cell(struct screen_write_ctx *ctx, const struct grid_cell *gc)
1.1 nicm 1397: {
1398: struct screen *s = ctx->s;
1399: struct grid *gd = s->grid;
1.109 nicm 1400: struct grid_line *gl;
1401: struct grid_cell_entry *gce;
1402: struct grid_cell tmp_gc, now_gc;
1.15 nicm 1403: struct tty_ctx ttyctx;
1.92 nicm 1404: u_int sx = screen_size_x(s), sy = screen_size_y(s);
1.115 nicm 1405: u_int width = gc->data.width, xx, last, cx, cy;
1.109 nicm 1406: int selected, skip = 1;
1.1 nicm 1407:
1.109 nicm 1408: /* Ignore padding cells. */
1.1 nicm 1409: if (gc->flags & GRID_FLAG_PADDING)
1410: return;
1.109 nicm 1411: ctx->cells++;
1.32 nicm 1412:
1.109 nicm 1413: /* If the width is zero, combine onto the previous character. */
1.1 nicm 1414: if (width == 0) {
1.112 nicm 1415: screen_write_collect_flush(ctx, 0);
1.104 nicm 1416: if ((gc = screen_write_combine(ctx, &gc->data, &xx)) != 0) {
1.115 nicm 1417: cx = s->cx; cy = s->cy;
1.144 nicm 1418: screen_write_set_cursor(ctx, xx, s->cy);
1.87 nicm 1419: screen_write_initctx(ctx, &ttyctx);
1.104 nicm 1420: ttyctx.cell = gc;
1421: tty_write(tty_cmd_cell, &ttyctx);
1.115 nicm 1422: s->cx = cx; s->cy = cy;
1.1 nicm 1423: }
1424: return;
1425: }
1.112 nicm 1426:
1427: /* Flush any existing scrolling. */
1428: screen_write_collect_flush(ctx, 1);
1.1 nicm 1429:
1.109 nicm 1430: /* If this character doesn't fit, ignore it. */
1431: if ((~s->mode & MODE_WRAP) &&
1432: width > 1 &&
1433: (width > sx || (s->cx != sx && s->cx > sx - width)))
1434: return;
1435:
1.6 nicm 1436: /* If in insert mode, make space for the cells. */
1.98 nicm 1437: if (s->mode & MODE_INSERT) {
1.109 nicm 1438: grid_view_insert_cells(s->grid, s->cx, s->cy, width, 8);
1439: skip = 0;
1440: }
1.6 nicm 1441:
1.20 nicm 1442: /* Check this will fit on the current line and wrap if not. */
1.92 nicm 1443: if ((s->mode & MODE_WRAP) && s->cx > sx - width) {
1.128 nicm 1444: log_debug("%s: wrapped at %u,%u", __func__, s->cx, s->cy);
1.122 nicm 1445: screen_write_linefeed(ctx, 1, 8);
1.139 nicm 1446: screen_write_set_cursor(ctx, 0, -1);
1.128 nicm 1447: screen_write_collect_flush(ctx, 1);
1.1 nicm 1448: }
1449:
1.64 nicm 1450: /* Sanity check cursor position. */
1.92 nicm 1451: if (s->cx > sx - width || s->cy > sy - 1)
1.1 nicm 1452: return;
1.106 nicm 1453: screen_write_initctx(ctx, &ttyctx);
1454:
1.1 nicm 1455: /* Handle overwriting of UTF-8 characters. */
1.137 nicm 1456: gl = grid_get_line(s->grid, s->grid->hsize + s->cy);
1.92 nicm 1457: if (gl->flags & GRID_LINE_EXTENDED) {
1458: grid_view_get_cell(gd, s->cx, s->cy, &now_gc);
1459: if (screen_write_overwrite(ctx, &now_gc, width))
1460: skip = 0;
1461: }
1.1 nicm 1462:
1463: /*
1464: * If the new character is UTF-8 wide, fill in padding cells. Have
1465: * already ensured there is enough room.
1466: */
1.89 nicm 1467: for (xx = s->cx + 1; xx < s->cx + width; xx++) {
1.131 nicm 1468: log_debug("%s: new padding at %u,%u", __func__, xx, s->cy);
1.88 nicm 1469: grid_view_set_cell(gd, xx, s->cy, &screen_write_pad_cell);
1.89 nicm 1470: skip = 0;
1471: }
1472:
1473: /* If no change, do not draw. */
1.92 nicm 1474: if (skip) {
1475: if (s->cx >= gl->cellsize)
1476: skip = grid_cells_equal(gc, &grid_default_cell);
1477: else {
1478: gce = &gl->celldata[s->cx];
1479: if (gce->flags & GRID_FLAG_EXTENDED)
1480: skip = 0;
1.95 nicm 1481: else if (gc->flags != gce->flags)
1.92 nicm 1482: skip = 0;
1483: else if (gc->attr != gce->data.attr)
1484: skip = 0;
1485: else if (gc->fg != gce->data.fg)
1486: skip = 0;
1487: else if (gc->bg != gce->data.bg)
1488: skip = 0;
1.95 nicm 1489: else if (gc->data.width != 1)
1490: skip = 0;
1.109 nicm 1491: else if (gc->data.size != 1)
1492: skip = 0;
1.95 nicm 1493: else if (gce->data.data != gc->data.data[0])
1.92 nicm 1494: skip = 0;
1495: }
1496: }
1.1 nicm 1497:
1.127 nicm 1498: /* Update the selected flag and set the cell. */
1.90 nicm 1499: selected = screen_check_selection(s, s->cx, s->cy);
1.109 nicm 1500: if (selected && (~gc->flags & GRID_FLAG_SELECTED)) {
1.90 nicm 1501: memcpy(&tmp_gc, gc, sizeof tmp_gc);
1502: tmp_gc.flags |= GRID_FLAG_SELECTED;
1503: grid_view_set_cell(gd, s->cx, s->cy, &tmp_gc);
1.109 nicm 1504: } else if (!selected && (gc->flags & GRID_FLAG_SELECTED)) {
1.90 nicm 1505: memcpy(&tmp_gc, gc, sizeof tmp_gc);
1506: tmp_gc.flags &= ~GRID_FLAG_SELECTED;
1507: grid_view_set_cell(gd, s->cx, s->cy, &tmp_gc);
1508: } else if (!skip)
1.89 nicm 1509: grid_view_set_cell(gd, s->cx, s->cy, gc);
1.109 nicm 1510: if (selected)
1511: skip = 0;
1.1 nicm 1512:
1.64 nicm 1513: /*
1514: * Move the cursor. If not wrapping, stick at the last character and
1515: * replace it.
1516: */
1.65 nicm 1517: last = !(s->mode & MODE_WRAP);
1.92 nicm 1518: if (s->cx <= sx - last - width)
1.139 nicm 1519: screen_write_set_cursor(ctx, s->cx + width, -1);
1.64 nicm 1520: else
1.139 nicm 1521: screen_write_set_cursor(ctx, sx - last, -1);
1.1 nicm 1522:
1.89 nicm 1523: /* Create space for character in insert mode. */
1.109 nicm 1524: if (s->mode & MODE_INSERT) {
1.113 nicm 1525: screen_write_collect_flush(ctx, 0);
1.17 nicm 1526: ttyctx.num = width;
1527: tty_write(tty_cmd_insertcharacter, &ttyctx);
1528: }
1.89 nicm 1529:
1530: /* Write to the screen. */
1.109 nicm 1531: if (!skip) {
1532: if (selected) {
1533: screen_select_cell(s, &tmp_gc, gc);
1534: ttyctx.cell = &tmp_gc;
1535: } else
1536: ttyctx.cell = gc;
1.16 nicm 1537: tty_write(tty_cmd_cell, &ttyctx);
1.92 nicm 1538: ctx->written++;
1539: } else
1540: ctx->skipped++;
1.35 nicm 1541: }
1542:
1543: /* Combine a UTF-8 zero-width character onto the previous. */
1.104 nicm 1544: static const struct grid_cell *
1545: screen_write_combine(struct screen_write_ctx *ctx, const struct utf8_data *ud,
1546: u_int *xx)
1.35 nicm 1547: {
1548: struct screen *s = ctx->s;
1549: struct grid *gd = s->grid;
1.104 nicm 1550: static struct grid_cell gc;
1551: u_int n;
1.35 nicm 1552:
1553: /* Can't combine if at 0. */
1554: if (s->cx == 0)
1.104 nicm 1555: return (NULL);
1.35 nicm 1556:
1.60 nicm 1557: /* Empty data is out. */
1558: if (ud->size == 0)
1.37 nicm 1559: fatalx("UTF-8 data empty");
1560:
1.60 nicm 1561: /* Retrieve the previous cell. */
1.119 nicm 1562: for (n = 1; n <= s->cx; n++) {
1.104 nicm 1563: grid_view_get_cell(gd, s->cx - n, s->cy, &gc);
1564: if (~gc.flags & GRID_FLAG_PADDING)
1565: break;
1566: }
1.119 nicm 1567: if (n > s->cx)
1.104 nicm 1568: return (NULL);
1569: *xx = s->cx - n;
1.35 nicm 1570:
1.60 nicm 1571: /* Check there is enough space. */
1.77 nicm 1572: if (gc.data.size + ud->size > sizeof gc.data.data)
1.104 nicm 1573: return (NULL);
1574:
1575: log_debug("%s: %.*s onto %.*s at %u,%u", __func__, (int)ud->size,
1576: ud->data, (int)gc.data.size, gc.data.data, *xx, s->cy);
1.35 nicm 1577:
1.77 nicm 1578: /* Append the data. */
1579: memcpy(gc.data.data + gc.data.size, ud->data, ud->size);
1580: gc.data.size += ud->size;
1581:
1582: /* Set the new cell. */
1.104 nicm 1583: grid_view_set_cell(gd, *xx, s->cy, &gc);
1.35 nicm 1584:
1.104 nicm 1585: return (&gc);
1.1 nicm 1586: }
1587:
1588: /*
1589: * UTF-8 wide characters are a bit of an annoyance. They take up more than one
1590: * cell on the screen, so following cells must not be drawn by marking them as
1591: * padding.
1592: *
1593: * So far, so good. The problem is, when overwriting a padding cell, or a UTF-8
1594: * character, it is necessary to also overwrite any other cells which covered
1595: * by the same character.
1596: */
1.89 nicm 1597: static int
1598: screen_write_overwrite(struct screen_write_ctx *ctx, struct grid_cell *gc,
1599: u_int width)
1.1 nicm 1600: {
1601: struct screen *s = ctx->s;
1602: struct grid *gd = s->grid;
1.89 nicm 1603: struct grid_cell tmp_gc;
1.1 nicm 1604: u_int xx;
1.89 nicm 1605: int done = 0;
1.1 nicm 1606:
1.89 nicm 1607: if (gc->flags & GRID_FLAG_PADDING) {
1.1 nicm 1608: /*
1609: * A padding cell, so clear any following and leading padding
1610: * cells back to the character. Don't overwrite the current
1611: * cell as that happens later anyway.
1612: */
1613: xx = s->cx + 1;
1614: while (--xx > 0) {
1.89 nicm 1615: grid_view_get_cell(gd, xx, s->cy, &tmp_gc);
1616: if (~tmp_gc.flags & GRID_FLAG_PADDING)
1.1 nicm 1617: break;
1.131 nicm 1618: log_debug("%s: padding at %u,%u", __func__, xx, s->cy);
1.1 nicm 1619: grid_view_set_cell(gd, xx, s->cy, &grid_default_cell);
1620: }
1621:
1622: /* Overwrite the character at the start of this padding. */
1.131 nicm 1623: log_debug("%s: character at %u,%u", __func__, xx, s->cy);
1.1 nicm 1624: grid_view_set_cell(gd, xx, s->cy, &grid_default_cell);
1.89 nicm 1625: done = 1;
1.43 nicm 1626: }
1.1 nicm 1627:
1.43 nicm 1628: /*
1.95 nicm 1629: * Overwrite any padding cells that belong to any UTF-8 characters
1630: * we'll be overwriting with the current character.
1.43 nicm 1631: */
1.95 nicm 1632: if (width != 1 ||
1633: gc->data.width != 1 ||
1634: gc->flags & GRID_FLAG_PADDING) {
1.89 nicm 1635: xx = s->cx + width - 1;
1636: while (++xx < screen_size_x(s)) {
1637: grid_view_get_cell(gd, xx, s->cy, &tmp_gc);
1638: if (~tmp_gc.flags & GRID_FLAG_PADDING)
1639: break;
1.160 nicm 1640: log_debug("%s: overwrite at %u,%u", __func__, xx,
1641: s->cy);
1.89 nicm 1642: grid_view_set_cell(gd, xx, s->cy, &grid_default_cell);
1643: done = 1;
1644: }
1.1 nicm 1645: }
1.89 nicm 1646:
1647: return (done);
1.50 nicm 1648: }
1649:
1.107 nicm 1650: /* Set external clipboard. */
1.50 nicm 1651: void
1652: screen_write_setselection(struct screen_write_ctx *ctx, u_char *str, u_int len)
1653: {
1654: struct tty_ctx ttyctx;
1655:
1.87 nicm 1656: screen_write_initctx(ctx, &ttyctx);
1.50 nicm 1657: ttyctx.ptr = str;
1658: ttyctx.num = len;
1659:
1660: tty_write(tty_cmd_setselection, &ttyctx);
1.47 nicm 1661: }
1662:
1.107 nicm 1663: /* Write unmodified string. */
1.47 nicm 1664: void
1665: screen_write_rawstring(struct screen_write_ctx *ctx, u_char *str, u_int len)
1666: {
1.87 nicm 1667: struct tty_ctx ttyctx;
1.47 nicm 1668:
1.87 nicm 1669: screen_write_initctx(ctx, &ttyctx);
1.47 nicm 1670: ttyctx.ptr = str;
1671: ttyctx.num = len;
1672:
1673: tty_write(tty_cmd_rawstring, &ttyctx);
1.1 nicm 1674: }
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