Annotation of src/usr.bin/tmux/screen-write.c, Revision 1.214
1.214 ! nicm 1: /* $OpenBSD: screen-write.c,v 1.213 2023/02/10 14:01:43 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:
1.193 nicm 26: static struct screen_write_citem *screen_write_collect_trim(
27: struct screen_write_ctx *, u_int, u_int, u_int, int *);
1.109 nicm 28: static void screen_write_collect_clear(struct screen_write_ctx *, u_int,
29: u_int);
1.193 nicm 30: static void screen_write_collect_scroll(struct screen_write_ctx *, u_int);
1.164 nicm 31: static void screen_write_collect_flush(struct screen_write_ctx *, int,
32: const char *);
1.87 nicm 33:
1.89 nicm 34: static int screen_write_overwrite(struct screen_write_ctx *,
35: struct grid_cell *, u_int);
1.104 nicm 36: static const struct grid_cell *screen_write_combine(struct screen_write_ctx *,
1.213 nicm 37: const struct utf8_data *, u_int *, u_int *);
1.1 nicm 38:
1.193 nicm 39: struct screen_write_citem {
40: u_int x;
41: int wrapped;
42:
43: enum { TEXT, CLEAR } type;
44: u_int used;
45: u_int bg;
1.109 nicm 46:
1.193 nicm 47: struct grid_cell gc;
1.109 nicm 48:
1.193 nicm 49: TAILQ_ENTRY(screen_write_citem) entry;
1.109 nicm 50: };
1.193 nicm 51: struct screen_write_cline {
52: char *data;
53: TAILQ_HEAD(, screen_write_citem) items;
1.109 nicm 54: };
1.193 nicm 55: TAILQ_HEAD(, screen_write_citem) screen_write_citem_freelist =
56: TAILQ_HEAD_INITIALIZER(screen_write_citem_freelist);
57:
58: static struct screen_write_citem *
59: screen_write_get_citem(void)
60: {
61: struct screen_write_citem *ci;
62:
63: ci = TAILQ_FIRST(&screen_write_citem_freelist);
64: if (ci != NULL) {
65: TAILQ_REMOVE(&screen_write_citem_freelist, ci, entry);
66: memset(ci, 0, sizeof *ci);
67: return (ci);
68: }
69: return (xcalloc(1, sizeof *ci));
70: }
71:
72: static void
73: screen_write_free_citem(struct screen_write_citem *ci)
74: {
75: TAILQ_INSERT_TAIL(&screen_write_citem_freelist, ci, entry);
76: }
1.92 nicm 77:
1.139 nicm 78: static void
79: screen_write_offset_timer(__unused int fd, __unused short events, void *data)
80: {
81: struct window *w = data;
82:
83: tty_update_window_offset(w);
84: }
85:
86: /* Set cursor position. */
87: static void
88: screen_write_set_cursor(struct screen_write_ctx *ctx, int cx, int cy)
89: {
90: struct window_pane *wp = ctx->wp;
91: struct window *w;
92: struct screen *s = ctx->s;
93: struct timeval tv = { .tv_usec = 10000 };
94:
95: if (cx != -1 && (u_int)cx == s->cx && cy != -1 && (u_int)cy == s->cy)
96: return;
97:
1.144 nicm 98: if (cx != -1) {
1.145 nicm 99: if ((u_int)cx > screen_size_x(s)) /* allow last column */
1.144 nicm 100: cx = screen_size_x(s) - 1;
1.139 nicm 101: s->cx = cx;
1.144 nicm 102: }
103: if (cy != -1) {
104: if ((u_int)cy > screen_size_y(s) - 1)
105: cy = screen_size_y(s) - 1;
1.139 nicm 106: s->cy = cy;
1.144 nicm 107: }
1.139 nicm 108:
109: if (wp == NULL)
110: return;
111: w = wp->window;
112:
113: if (!event_initialized(&w->offset_timer))
114: evtimer_set(&w->offset_timer, screen_write_offset_timer, w);
115: if (!evtimer_pending(&w->offset_timer, NULL))
116: evtimer_add(&w->offset_timer, &tv);
117: }
118:
1.178 nicm 119: /* Do a full redraw. */
120: static void
121: screen_write_redraw_cb(const struct tty_ctx *ttyctx)
122: {
123: struct window_pane *wp = ttyctx->arg;
124:
1.185 nicm 125: if (wp != NULL)
126: wp->flags |= PANE_REDRAW;
1.178 nicm 127: }
128:
129: /* Update context for client. */
130: static int
131: screen_write_set_client_cb(struct tty_ctx *ttyctx, struct client *c)
132: {
133: struct window_pane *wp = ttyctx->arg;
1.214 ! nicm 134:
! 135: if (ttyctx->allow_invisible_panes) {
! 136: if (session_has(c->session, wp->window))
! 137: return (1);
! 138: return (0);
! 139: }
1.178 nicm 140:
141: if (c->session->curw->window != wp->window)
142: return (0);
143: if (wp->layout_cell == NULL)
144: return (0);
145:
146: if (wp->flags & (PANE_REDRAW|PANE_DROP))
147: return (-1);
148: if (c->flags & CLIENT_REDRAWPANES) {
149: /*
150: * Redraw is already deferred to redraw another pane - redraw
151: * this one also when that happens.
152: */
1.193 nicm 153: log_debug("%s: adding %%%u to deferred redraw", __func__,
154: wp->id);
1.178 nicm 155: wp->flags |= PANE_REDRAW;
156: return (-1);
157: }
158:
159: ttyctx->bigger = tty_window_offset(&c->tty, &ttyctx->wox, &ttyctx->woy,
160: &ttyctx->wsx, &ttyctx->wsy);
161:
162: ttyctx->xoff = ttyctx->rxoff = wp->xoff;
163: ttyctx->yoff = ttyctx->ryoff = wp->yoff;
164:
165: if (status_at_line(c) == 0)
166: ttyctx->yoff += status_line_size(c);
167:
168: return (1);
169: }
170:
1.163 nicm 171: /* Set up context for TTY command. */
172: static void
173: screen_write_initctx(struct screen_write_ctx *ctx, struct tty_ctx *ttyctx,
174: int sync)
175: {
176: struct screen *s = ctx->s;
177:
178: memset(ttyctx, 0, sizeof *ttyctx);
179:
1.178 nicm 180: ttyctx->s = s;
1.177 nicm 181: ttyctx->sx = screen_size_x(s);
182: ttyctx->sy = screen_size_y(s);
1.163 nicm 183:
184: ttyctx->ocx = s->cx;
185: ttyctx->ocy = s->cy;
186: ttyctx->orlower = s->rlower;
187: ttyctx->orupper = s->rupper;
188:
1.197 nicm 189: memcpy(&ttyctx->defaults, &grid_default_cell, sizeof ttyctx->defaults);
190: if (ctx->init_ctx_cb != NULL) {
1.178 nicm 191: ctx->init_ctx_cb(ctx, ttyctx);
1.197 nicm 192: if (ttyctx->palette != NULL) {
1.204 nicm 193: if (ttyctx->defaults.fg == 8)
1.203 nicm 194: ttyctx->defaults.fg = ttyctx->palette->fg;
1.204 nicm 195: if (ttyctx->defaults.bg == 8)
1.203 nicm 196: ttyctx->defaults.bg = ttyctx->palette->bg;
1.197 nicm 197: }
198: } else {
1.178 nicm 199: ttyctx->redraw_cb = screen_write_redraw_cb;
1.197 nicm 200: if (ctx->wp != NULL) {
201: tty_default_colours(&ttyctx->defaults, ctx->wp);
202: ttyctx->palette = &ctx->wp->palette;
1.178 nicm 203: ttyctx->set_client_cb = screen_write_set_client_cb;
1.197 nicm 204: ttyctx->arg = ctx->wp;
205: }
1.178 nicm 206: }
207:
1.199 nicm 208: if (~ctx->flags & SCREEN_WRITE_SYNC) {
209: /*
210: * For the active pane or for an overlay (no pane), we want to
211: * only use synchronized updates if requested (commands that
212: * move the cursor); for other panes, always use it, since the
213: * cursor will have to move.
214: */
215: if (ctx->wp != NULL) {
216: if (ctx->wp != ctx->wp->window->active)
217: ttyctx->num = 1;
218: else
219: ttyctx->num = sync;
220: } else
221: ttyctx->num = 0x10|sync;
1.163 nicm 222: tty_write(tty_cmd_syncstart, ttyctx);
1.180 nicm 223: ctx->flags |= SCREEN_WRITE_SYNC;
1.163 nicm 224: }
225: }
226:
1.170 nicm 227: /* Make write list. */
228: void
229: screen_write_make_list(struct screen *s)
230: {
231: u_int y;
232:
233: s->write_list = xcalloc(screen_size_y(s), sizeof *s->write_list);
234: for (y = 0; y < screen_size_y(s); y++)
235: TAILQ_INIT(&s->write_list[y].items);
236: }
237:
238: /* Free write list. */
239: void
240: screen_write_free_list(struct screen *s)
241: {
242: u_int y;
243:
244: for (y = 0; y < screen_size_y(s); y++)
245: free(s->write_list[y].data);
246: free(s->write_list);
247: }
248:
1.178 nicm 249: /* Set up for writing. */
250: static void
251: screen_write_init(struct screen_write_ctx *ctx, struct screen *s)
1.1 nicm 252: {
1.109 nicm 253: memset(ctx, 0, sizeof *ctx);
1.92 nicm 254:
1.178 nicm 255: ctx->s = s;
1.92 nicm 256:
1.170 nicm 257: if (ctx->s->write_list == NULL)
258: screen_write_make_list(ctx->s);
1.193 nicm 259: ctx->item = screen_write_get_citem();
1.92 nicm 260:
1.122 nicm 261: ctx->scrolled = 0;
262: ctx->bg = 8;
1.178 nicm 263: }
264:
265: /* Initialize writing with a pane. */
266: void
267: screen_write_start_pane(struct screen_write_ctx *ctx, struct window_pane *wp,
268: struct screen *s)
269: {
270: if (s == NULL)
271: s = wp->screen;
272: screen_write_init(ctx, s);
273: ctx->wp = wp;
274:
275: if (log_get_level() != 0) {
276: log_debug("%s: size %ux%u, pane %%%u (at %u,%u)",
277: __func__, screen_size_x(ctx->s), screen_size_y(ctx->s),
278: wp->id, wp->xoff, wp->yoff);
279: }
280: }
281:
282: /* Initialize writing with a callback. */
283: void
284: screen_write_start_callback(struct screen_write_ctx *ctx, struct screen *s,
285: screen_write_init_ctx_cb cb, void *arg)
286: {
287: screen_write_init(ctx, s);
288:
289: ctx->init_ctx_cb = cb;
290: ctx->arg = arg;
291:
292: if (log_get_level() != 0) {
293: log_debug("%s: size %ux%u, with callback", __func__,
294: screen_size_x(ctx->s), screen_size_y(ctx->s));
295: }
296: }
297:
298: /* Initialize writing. */
299: void
300: screen_write_start(struct screen_write_ctx *ctx, struct screen *s)
301: {
302: screen_write_init(ctx, s);
1.122 nicm 303:
1.158 nicm 304: if (log_get_level() != 0) {
1.178 nicm 305: log_debug("%s: size %ux%u, no pane", __func__,
306: screen_size_x(ctx->s), screen_size_y(ctx->s));
1.139 nicm 307: }
1.1 nicm 308: }
309:
310: /* Finish writing. */
311: void
1.92 nicm 312: screen_write_stop(struct screen_write_ctx *ctx)
313: {
1.109 nicm 314: screen_write_collect_end(ctx);
1.164 nicm 315: screen_write_collect_flush(ctx, 0, __func__);
1.92 nicm 316:
1.193 nicm 317: screen_write_free_citem(ctx->item);
1.52 nicm 318: }
319:
320: /* Reset screen state. */
321: void
322: screen_write_reset(struct screen_write_ctx *ctx)
323: {
1.61 nicm 324: struct screen *s = ctx->s;
1.52 nicm 325:
1.61 nicm 326: screen_reset_tabs(s);
327: screen_write_scrollregion(ctx, 0, screen_size_y(s) - 1);
1.63 nicm 328:
1.141 nicm 329: s->mode = MODE_CURSOR | MODE_WRAP;
1.52 nicm 330:
1.99 nicm 331: screen_write_clearscreen(ctx, 8);
1.144 nicm 332: screen_write_set_cursor(ctx, 0, 0);
1.1 nicm 333: }
334:
335: /* Write character. */
336: void
1.86 nicm 337: screen_write_putc(struct screen_write_ctx *ctx, const struct grid_cell *gcp,
1.69 nicm 338: u_char ch)
1.1 nicm 339: {
1.86 nicm 340: struct grid_cell gc;
341:
342: memcpy(&gc, gcp, sizeof gc);
343:
344: utf8_set(&gc.data, ch);
345: screen_write_cell(ctx, &gc);
1.1 nicm 346: }
347:
1.2 nicm 348: /* Calculate string length. */
1.71 nicm 349: size_t
1.75 nicm 350: screen_write_strlen(const char *fmt, ...)
1.2 nicm 351: {
1.36 nicm 352: va_list ap;
353: char *msg;
1.76 nicm 354: struct utf8_data ud;
1.36 nicm 355: u_char *ptr;
356: size_t left, size = 0;
1.79 nicm 357: enum utf8_state more;
1.2 nicm 358:
359: va_start(ap, fmt);
360: xvasprintf(&msg, fmt, ap);
361: va_end(ap);
362:
363: ptr = msg;
364: while (*ptr != '\0') {
1.79 nicm 365: if (*ptr > 0x7f && utf8_open(&ud, *ptr) == UTF8_MORE) {
1.36 nicm 366: ptr++;
1.2 nicm 367:
368: left = strlen(ptr);
1.77 nicm 369: if (left < (size_t)ud.size - 1)
1.36 nicm 370: break;
1.79 nicm 371: while ((more = utf8_append(&ud, *ptr)) == UTF8_MORE)
1.2 nicm 372: ptr++;
1.36 nicm 373: ptr++;
374:
1.79 nicm 375: if (more == UTF8_DONE)
1.78 nicm 376: size += ud.width;
1.2 nicm 377: } else {
1.75 nicm 378: if (*ptr > 0x1f && *ptr < 0x7f)
379: size++;
1.2 nicm 380: ptr++;
381: }
1.7 ray 382: }
1.2 nicm 383:
1.56 nicm 384: free(msg);
1.2 nicm 385: return (size);
386: }
387:
1.179 nicm 388: /* Write string wrapped over lines. */
389: int
390: screen_write_text(struct screen_write_ctx *ctx, u_int cx, u_int width,
391: u_int lines, int more, const struct grid_cell *gcp, const char *fmt, ...)
392: {
393: struct screen *s = ctx->s;
394: va_list ap;
395: char *tmp;
396: u_int cy = s->cy, i, end, next, idx = 0, at, left;
397: struct utf8_data *text;
398: struct grid_cell gc;
399:
400: memcpy(&gc, gcp, sizeof gc);
401:
402: va_start(ap, fmt);
403: xvasprintf(&tmp, fmt, ap);
404: va_end(ap);
405:
406: text = utf8_fromcstr(tmp);
407: free(tmp);
408:
409: left = (cx + width) - s->cx;
410: for (;;) {
411: /* Find the end of what can fit on the line. */
412: at = 0;
413: for (end = idx; text[end].size != 0; end++) {
414: if (text[end].size == 1 && text[end].data[0] == '\n')
415: break;
416: if (at + text[end].width > left)
417: break;
418: at += text[end].width;
419: }
420:
421: /*
422: * If we're on a space, that's the end. If not, walk back to
423: * try and find one.
424: */
425: if (text[end].size == 0)
426: next = end;
427: else if (text[end].size == 1 && text[end].data[0] == '\n')
428: next = end + 1;
429: else if (text[end].size == 1 && text[end].data[0] == ' ')
430: next = end + 1;
431: else {
432: for (i = end; i > idx; i--) {
433: if (text[i].size == 1 && text[i].data[0] == ' ')
434: break;
435: }
436: if (i != idx) {
437: next = i + 1;
438: end = i;
439: } else
440: next = end;
441: }
442:
443: /* Print the line. */
444: for (i = idx; i < end; i++) {
445: utf8_copy(&gc.data, &text[i]);
446: screen_write_cell(ctx, &gc);
447: }
448:
449: /* If at the bottom, stop. */
450: idx = next;
451: if (s->cy == cy + lines - 1 || text[idx].size == 0)
452: break;
453:
454: screen_write_cursormove(ctx, cx, s->cy + 1, 0);
455: left = width;
456: }
457:
458: /*
459: * Fail if on the last line and there is more to come or at the end, or
460: * if the text was not entirely consumed.
461: */
462: if ((s->cy == cy + lines - 1 && (!more || s->cx == cx + width)) ||
463: text[idx].size != 0) {
464: free(text);
465: return (0);
466: }
467: free(text);
468:
469: /*
470: * If no more to come, move to the next line. Otherwise, leave on
471: * the same line (except if at the end).
472: */
473: if (!more || s->cx == cx + width)
474: screen_write_cursormove(ctx, cx, s->cy + 1, 0);
475: return (1);
476: }
477:
478: /* Write simple string (no maximum length). */
1.71 nicm 479: void
1.86 nicm 480: screen_write_puts(struct screen_write_ctx *ctx, const struct grid_cell *gcp,
1.71 nicm 481: const char *fmt, ...)
1.1 nicm 482: {
483: va_list ap;
484:
485: va_start(ap, fmt);
1.86 nicm 486: screen_write_vnputs(ctx, -1, gcp, fmt, ap);
1.2 nicm 487: va_end(ap);
488: }
489:
490: /* Write string with length limit (-1 for unlimited). */
1.71 nicm 491: void
492: screen_write_nputs(struct screen_write_ctx *ctx, ssize_t maxlen,
1.86 nicm 493: const struct grid_cell *gcp, const char *fmt, ...)
1.2 nicm 494: {
495: va_list ap;
496:
497: va_start(ap, fmt);
1.86 nicm 498: screen_write_vnputs(ctx, maxlen, gcp, fmt, ap);
1.2 nicm 499: va_end(ap);
500: }
501:
502: void
1.3 nicm 503: screen_write_vnputs(struct screen_write_ctx *ctx, ssize_t maxlen,
1.86 nicm 504: const struct grid_cell *gcp, const char *fmt, va_list ap)
1.2 nicm 505: {
1.86 nicm 506: struct grid_cell gc;
507: struct utf8_data *ud = &gc.data;
1.36 nicm 508: char *msg;
509: u_char *ptr;
510: size_t left, size = 0;
1.79 nicm 511: enum utf8_state more;
1.2 nicm 512:
1.86 nicm 513: memcpy(&gc, gcp, sizeof gc);
1.1 nicm 514: xvasprintf(&msg, fmt, ap);
515:
1.2 nicm 516: ptr = msg;
517: while (*ptr != '\0') {
1.86 nicm 518: if (*ptr > 0x7f && utf8_open(ud, *ptr) == UTF8_MORE) {
1.36 nicm 519: ptr++;
1.2 nicm 520:
521: left = strlen(ptr);
1.86 nicm 522: if (left < (size_t)ud->size - 1)
1.36 nicm 523: break;
1.86 nicm 524: while ((more = utf8_append(ud, *ptr)) == UTF8_MORE)
1.2 nicm 525: ptr++;
1.36 nicm 526: ptr++;
1.7 ray 527:
1.86 nicm 528: if (more != UTF8_DONE)
529: continue;
530: if (maxlen > 0 && size + ud->width > (size_t)maxlen) {
531: while (size < (size_t)maxlen) {
532: screen_write_putc(ctx, &gc, ' ');
533: size++;
1.2 nicm 534: }
1.86 nicm 535: break;
1.2 nicm 536: }
1.86 nicm 537: size += ud->width;
538: screen_write_cell(ctx, &gc);
1.2 nicm 539: } else {
1.86 nicm 540: if (maxlen > 0 && size + 1 > (size_t)maxlen)
1.2 nicm 541: break;
542:
1.57 nicm 543: if (*ptr == '\001')
1.86 nicm 544: gc.attr ^= GRID_ATTR_CHARSET;
1.187 nicm 545: else if (*ptr == '\n') {
546: screen_write_linefeed(ctx, 0, 8);
547: screen_write_carriagereturn(ctx);
548: } else if (*ptr > 0x1f && *ptr < 0x7f) {
1.57 nicm 549: size++;
1.86 nicm 550: screen_write_putc(ctx, &gc, *ptr);
1.75 nicm 551: }
1.24 nicm 552: ptr++;
553: }
554: }
555:
1.56 nicm 556: free(msg);
1.1 nicm 557: }
558:
1.132 nicm 559: /*
1.176 nicm 560: * Copy from another screen but without the selection stuff. Assumes the target
561: * region is already big enough.
1.132 nicm 562: */
563: void
564: screen_write_fast_copy(struct screen_write_ctx *ctx, struct screen *src,
565: u_int px, u_int py, u_int nx, u_int ny)
566: {
567: struct screen *s = ctx->s;
568: struct grid *gd = src->grid;
569: struct grid_cell gc;
570: u_int xx, yy, cx, cy;
1.96 nicm 571:
1.132 nicm 572: if (nx == 0 || ny == 0)
573: return;
574:
575: cy = s->cy;
576: for (yy = py; yy < py + ny; yy++) {
1.134 nicm 577: if (yy >= gd->hsize + gd->sy)
578: break;
1.132 nicm 579: cx = s->cx;
580: for (xx = px; xx < px + nx; xx++) {
1.137 nicm 581: if (xx >= grid_get_line(gd, yy)->cellsize)
1.132 nicm 582: break;
583: grid_get_cell(gd, xx, yy, &gc);
1.135 nicm 584: if (xx + gc.data.width > px + nx)
585: break;
1.150 nicm 586: grid_view_set_cell(ctx->s->grid, cx, cy, &gc);
1.132 nicm 587: cx++;
588: }
1.1 nicm 589: cy++;
1.125 nicm 590: }
591: }
592:
1.129 nicm 593: /* Draw a horizontal line on screen. */
1.125 nicm 594: void
1.129 nicm 595: screen_write_hline(struct screen_write_ctx *ctx, u_int nx, int left, int right)
1.125 nicm 596: {
597: struct screen *s = ctx->s;
598: struct grid_cell gc;
599: u_int cx, cy, i;
600:
601: cx = s->cx;
602: cy = s->cy;
603:
604: memcpy(&gc, &grid_default_cell, sizeof gc);
605: gc.attr |= GRID_ATTR_CHARSET;
606:
607: screen_write_putc(ctx, &gc, left ? 't' : 'q');
608: for (i = 1; i < nx - 1; i++)
609: screen_write_putc(ctx, &gc, 'q');
610: screen_write_putc(ctx, &gc, right ? 'u' : 'q');
1.129 nicm 611:
1.144 nicm 612: screen_write_set_cursor(ctx, cx, cy);
1.129 nicm 613: }
614:
1.195 nicm 615: /* Draw a vertical line on screen. */
1.129 nicm 616: void
1.130 nicm 617: screen_write_vline(struct screen_write_ctx *ctx, u_int ny, int top, int bottom)
1.129 nicm 618: {
619: struct screen *s = ctx->s;
620: struct grid_cell gc;
621: u_int cx, cy, i;
622:
623: cx = s->cx;
624: cy = s->cy;
625:
626: memcpy(&gc, &grid_default_cell, sizeof gc);
627: gc.attr |= GRID_ATTR_CHARSET;
628:
629: screen_write_putc(ctx, &gc, top ? 'w' : 'x');
630: for (i = 1; i < ny - 1; i++) {
1.144 nicm 631: screen_write_set_cursor(ctx, cx, cy + i);
1.129 nicm 632: screen_write_putc(ctx, &gc, 'x');
633: }
1.144 nicm 634: screen_write_set_cursor(ctx, cx, cy + ny - 1);
1.129 nicm 635: screen_write_putc(ctx, &gc, bottom ? 'v' : 'x');
1.152 nicm 636:
637: screen_write_set_cursor(ctx, cx, cy);
638: }
639:
640: /* Draw a menu on screen. */
641: void
1.161 nicm 642: screen_write_menu(struct screen_write_ctx *ctx, struct menu *menu,
643: int choice, const struct grid_cell *choice_gc)
1.152 nicm 644: {
645: struct screen *s = ctx->s;
1.161 nicm 646: struct grid_cell default_gc;
647: const struct grid_cell *gc = &default_gc;
1.152 nicm 648: u_int cx, cy, i, j;
1.153 nicm 649: const char *name;
1.152 nicm 650:
651: cx = s->cx;
652: cy = s->cy;
653:
1.161 nicm 654: memcpy(&default_gc, &grid_default_cell, sizeof default_gc);
1.152 nicm 655:
1.201 nicm 656: screen_write_box(ctx, menu->width + 4, menu->count + 2,
1.202 nicm 657: BOX_LINES_DEFAULT, &default_gc, menu->title);
1.152 nicm 658:
659: for (i = 0; i < menu->count; i++) {
1.153 nicm 660: name = menu->items[i].name;
661: if (name == NULL) {
1.152 nicm 662: screen_write_cursormove(ctx, cx, cy + 1 + i, 0);
663: screen_write_hline(ctx, menu->width + 4, 1, 1);
664: } else {
1.153 nicm 665: if (choice >= 0 && i == (u_int)choice && *name != '-')
1.161 nicm 666: gc = choice_gc;
1.152 nicm 667: screen_write_cursormove(ctx, cx + 2, cy + 1 + i, 0);
668: for (j = 0; j < menu->width; j++)
1.161 nicm 669: screen_write_putc(ctx, gc, ' ');
1.152 nicm 670: screen_write_cursormove(ctx, cx + 2, cy + 1 + i, 0);
1.153 nicm 671: if (*name == '-') {
672: name++;
1.161 nicm 673: default_gc.attr |= GRID_ATTR_DIM;
1.205 nicm 674: format_draw(ctx, gc, menu->width, name, NULL,
675: 0);
1.161 nicm 676: default_gc.attr &= ~GRID_ATTR_DIM;
1.153 nicm 677: } else
1.205 nicm 678: format_draw(ctx, gc, menu->width, name, NULL,
679: gc == choice_gc);
1.161 nicm 680: gc = &default_gc;
1.152 nicm 681: }
682: }
1.125 nicm 683:
1.144 nicm 684: screen_write_set_cursor(ctx, cx, cy);
1.125 nicm 685: }
686:
1.201 nicm 687: static void
688: screen_write_box_border_set(enum box_lines box_lines, int cell_type,
689: struct grid_cell *gc)
690: {
691: switch (box_lines) {
692: case BOX_LINES_NONE:
693: break;
694: case BOX_LINES_DOUBLE:
695: gc->attr &= ~GRID_ATTR_CHARSET;
696: utf8_copy(&gc->data, tty_acs_double_borders(cell_type));
697: break;
698: case BOX_LINES_HEAVY:
699: gc->attr &= ~GRID_ATTR_CHARSET;
700: utf8_copy(&gc->data, tty_acs_heavy_borders(cell_type));
701: break;
702: case BOX_LINES_ROUNDED:
703: gc->attr &= ~GRID_ATTR_CHARSET;
704: utf8_copy(&gc->data, tty_acs_rounded_borders(cell_type));
705: break;
706: case BOX_LINES_SIMPLE:
707: gc->attr &= ~GRID_ATTR_CHARSET;
708: utf8_set(&gc->data, SIMPLE_BORDERS[cell_type]);
709: break;
710: case BOX_LINES_PADDED:
711: gc->attr &= ~GRID_ATTR_CHARSET;
712: utf8_set(&gc->data, PADDED_BORDERS[cell_type]);
713: break;
714: case BOX_LINES_SINGLE:
715: case BOX_LINES_DEFAULT:
716: gc->attr |= GRID_ATTR_CHARSET;
717: utf8_set(&gc->data, CELL_BORDERS[cell_type]);
718: break;
719: }
720: }
721:
1.125 nicm 722: /* Draw a box on screen. */
723: void
1.200 nicm 724: screen_write_box(struct screen_write_ctx *ctx, u_int nx, u_int ny,
1.202 nicm 725: enum box_lines lines, const struct grid_cell *gcp, const char *title)
1.125 nicm 726: {
727: struct screen *s = ctx->s;
1.200 nicm 728: struct grid_cell gc;
1.125 nicm 729: u_int cx, cy, i;
730:
731: cx = s->cx;
732: cy = s->cy;
733:
1.200 nicm 734: if (gcp != NULL)
735: memcpy(&gc, gcp, sizeof gc);
736: else
737: memcpy(&gc, &grid_default_cell, sizeof gc);
1.202 nicm 738:
1.125 nicm 739: gc.attr |= GRID_ATTR_CHARSET;
1.197 nicm 740: gc.flags |= GRID_FLAG_NOPALETTE;
1.125 nicm 741:
1.201 nicm 742: /* Draw top border */
1.202 nicm 743: screen_write_box_border_set(lines, CELL_TOPLEFT, &gc);
1.201 nicm 744: screen_write_cell(ctx, &gc);
1.202 nicm 745: screen_write_box_border_set(lines, CELL_LEFTRIGHT, &gc);
1.125 nicm 746: for (i = 1; i < nx - 1; i++)
1.201 nicm 747: screen_write_cell(ctx, &gc);
1.202 nicm 748: screen_write_box_border_set(lines, CELL_TOPRIGHT, &gc);
1.201 nicm 749: screen_write_cell(ctx, &gc);
1.125 nicm 750:
1.201 nicm 751: /* Draw bottom border */
1.144 nicm 752: screen_write_set_cursor(ctx, cx, cy + ny - 1);
1.202 nicm 753: screen_write_box_border_set(lines, CELL_BOTTOMLEFT, &gc);
1.201 nicm 754: screen_write_cell(ctx, &gc);
1.202 nicm 755: screen_write_box_border_set(lines, CELL_LEFTRIGHT, &gc);
1.125 nicm 756: for (i = 1; i < nx - 1; i++)
1.201 nicm 757: screen_write_cell(ctx, &gc);
1.202 nicm 758: screen_write_box_border_set(lines, CELL_BOTTOMRIGHT, &gc);
1.201 nicm 759: screen_write_cell(ctx, &gc);
1.125 nicm 760:
1.201 nicm 761: /* Draw sides */
1.202 nicm 762: screen_write_box_border_set(lines, CELL_TOPBOTTOM, &gc);
1.125 nicm 763: for (i = 1; i < ny - 1; i++) {
1.201 nicm 764: /* left side */
1.144 nicm 765: screen_write_set_cursor(ctx, cx, cy + i);
1.201 nicm 766: screen_write_cell(ctx, &gc);
767: /* right side */
1.144 nicm 768: screen_write_set_cursor(ctx, cx + nx - 1, cy + i);
1.201 nicm 769: screen_write_cell(ctx, &gc);
1.202 nicm 770: }
771:
772: if (title != NULL) {
773: gc.attr &= ~GRID_ATTR_CHARSET;
774: screen_write_cursormove(ctx, cx + 2, cy, 0);
1.205 nicm 775: format_draw(ctx, &gc, nx - 4, title, NULL, 0);
1.125 nicm 776: }
777:
1.144 nicm 778: screen_write_set_cursor(ctx, cx, cy);
1.125 nicm 779: }
780:
1.132 nicm 781: /*
782: * Write a preview version of a window. Assumes target area is big enough and
783: * already cleared.
784: */
1.125 nicm 785: void
786: screen_write_preview(struct screen_write_ctx *ctx, struct screen *src, u_int nx,
787: u_int ny)
788: {
789: struct screen *s = ctx->s;
790: struct grid_cell gc;
791: u_int cx, cy, px, py;
792:
793: cx = s->cx;
794: cy = s->cy;
795:
796: /*
797: * If the cursor is on, pick the area around the cursor, otherwise use
798: * the top left.
799: */
800: if (src->mode & MODE_CURSOR) {
801: px = src->cx;
802: if (px < nx / 3)
803: px = 0;
804: else
805: px = px - nx / 3;
806: if (px + nx > screen_size_x(src)) {
807: if (nx > screen_size_x(src))
808: px = 0;
809: else
810: px = screen_size_x(src) - nx;
811: }
812: py = src->cy;
813: if (py < ny / 3)
814: py = 0;
815: else
816: py = py - ny / 3;
817: if (py + ny > screen_size_y(src)) {
818: if (ny > screen_size_y(src))
819: py = 0;
820: else
821: py = screen_size_y(src) - ny;
822: }
823: } else {
824: px = 0;
825: py = 0;
826: }
827:
1.132 nicm 828: screen_write_fast_copy(ctx, src, px, src->grid->hsize + py, nx, ny);
1.125 nicm 829:
830: if (src->mode & MODE_CURSOR) {
831: grid_view_get_cell(src->grid, src->cx, src->cy, &gc);
832: gc.attr |= GRID_ATTR_REVERSE;
1.144 nicm 833: screen_write_set_cursor(ctx, cx + (src->cx - px),
1.125 nicm 834: cy + (src->cy - py));
835: screen_write_cell(ctx, &gc);
1.1 nicm 836: }
837: }
838:
1.61 nicm 839: /* Set a mode. */
840: void
841: screen_write_mode_set(struct screen_write_ctx *ctx, int mode)
842: {
843: struct screen *s = ctx->s;
844:
845: s->mode |= mode;
1.194 nicm 846:
847: if (log_get_level() != 0)
848: log_debug("%s: %s", __func__, screen_mode_to_string(mode));
1.61 nicm 849: }
850:
851: /* Clear a mode. */
852: void
853: screen_write_mode_clear(struct screen_write_ctx *ctx, int mode)
854: {
855: struct screen *s = ctx->s;
856:
857: s->mode &= ~mode;
1.194 nicm 858:
859: if (log_get_level() != 0)
860: log_debug("%s: %s", __func__, screen_mode_to_string(mode));
1.61 nicm 861: }
862:
1.1 nicm 863: /* Cursor up by ny. */
864: void
865: screen_write_cursorup(struct screen_write_ctx *ctx, u_int ny)
866: {
867: struct screen *s = ctx->s;
1.139 nicm 868: u_int cx = s->cx, cy = s->cy;
1.1 nicm 869:
870: if (ny == 0)
871: ny = 1;
872:
1.139 nicm 873: if (cy < s->rupper) {
1.12 nicm 874: /* Above region. */
1.139 nicm 875: if (ny > cy)
876: ny = cy;
1.12 nicm 877: } else {
878: /* Below region. */
1.139 nicm 879: if (ny > cy - s->rupper)
880: ny = cy - s->rupper;
1.12 nicm 881: }
1.139 nicm 882: if (cx == screen_size_x(s))
883: cx--;
884:
885: cy -= ny;
1.1 nicm 886:
1.139 nicm 887: screen_write_set_cursor(ctx, cx, cy);
1.1 nicm 888: }
889:
890: /* Cursor down by ny. */
891: void
892: screen_write_cursordown(struct screen_write_ctx *ctx, u_int ny)
893: {
894: struct screen *s = ctx->s;
1.139 nicm 895: u_int cx = s->cx, cy = s->cy;
1.1 nicm 896:
897: if (ny == 0)
898: ny = 1;
899:
1.139 nicm 900: if (cy > s->rlower) {
1.12 nicm 901: /* Below region. */
1.139 nicm 902: if (ny > screen_size_y(s) - 1 - cy)
903: ny = screen_size_y(s) - 1 - cy;
1.12 nicm 904: } else {
905: /* Above region. */
1.139 nicm 906: if (ny > s->rlower - cy)
907: ny = s->rlower - cy;
1.12 nicm 908: }
1.139 nicm 909: if (cx == screen_size_x(s))
910: cx--;
911: else if (ny == 0)
1.1 nicm 912: return;
913:
1.139 nicm 914: cy += ny;
915:
916: screen_write_set_cursor(ctx, cx, cy);
1.1 nicm 917: }
918:
1.101 nicm 919: /* Cursor right by nx. */
1.1 nicm 920: void
921: screen_write_cursorright(struct screen_write_ctx *ctx, u_int nx)
922: {
923: struct screen *s = ctx->s;
1.139 nicm 924: u_int cx = s->cx, cy = s->cy;
1.1 nicm 925:
926: if (nx == 0)
927: nx = 1;
928:
1.139 nicm 929: if (nx > screen_size_x(s) - 1 - cx)
930: nx = screen_size_x(s) - 1 - cx;
1.1 nicm 931: if (nx == 0)
932: return;
933:
1.139 nicm 934: cx += nx;
935:
936: screen_write_set_cursor(ctx, cx, cy);
1.1 nicm 937: }
938:
939: /* Cursor left by nx. */
940: void
941: screen_write_cursorleft(struct screen_write_ctx *ctx, u_int nx)
942: {
943: struct screen *s = ctx->s;
1.139 nicm 944: u_int cx = s->cx, cy = s->cy;
1.1 nicm 945:
946: if (nx == 0)
947: nx = 1;
948:
1.139 nicm 949: if (nx > cx)
950: nx = cx;
1.1 nicm 951: if (nx == 0)
952: return;
953:
1.139 nicm 954: cx -= nx;
955:
956: screen_write_set_cursor(ctx, cx, cy);
1.5 nicm 957: }
958:
1.29 nicm 959: /* Backspace; cursor left unless at start of wrapped line when can move up. */
960: void
961: screen_write_backspace(struct screen_write_ctx *ctx)
962: {
963: struct screen *s = ctx->s;
964: struct grid_line *gl;
1.139 nicm 965: u_int cx = s->cx, cy = s->cy;
1.29 nicm 966:
1.139 nicm 967: if (cx == 0) {
968: if (cy == 0)
1.29 nicm 969: return;
1.139 nicm 970: gl = grid_get_line(s->grid, s->grid->hsize + cy - 1);
1.29 nicm 971: if (gl->flags & GRID_LINE_WRAPPED) {
1.139 nicm 972: cy--;
973: cx = screen_size_x(s) - 1;
1.29 nicm 974: }
975: } else
1.139 nicm 976: cx--;
977:
978: screen_write_set_cursor(ctx, cx, cy);
1.29 nicm 979: }
980:
1.5 nicm 981: /* VT100 alignment test. */
982: void
983: screen_write_alignmenttest(struct screen_write_ctx *ctx)
984: {
985: struct screen *s = ctx->s;
1.17 nicm 986: struct tty_ctx ttyctx;
1.5 nicm 987: struct grid_cell gc;
988: u_int xx, yy;
989:
990: memcpy(&gc, &grid_default_cell, sizeof gc);
1.77 nicm 991: utf8_set(&gc.data, 'E');
1.7 ray 992:
1.5 nicm 993: for (yy = 0; yy < screen_size_y(s); yy++) {
994: for (xx = 0; xx < screen_size_x(s); xx++)
995: grid_view_set_cell(s->grid, xx, yy, &gc);
996: }
1.7 ray 997:
1.139 nicm 998: screen_write_set_cursor(ctx, 0, 0);
1.5 nicm 999:
1000: s->rupper = 0;
1001: s->rlower = screen_size_y(s) - 1;
1.143 nicm 1002:
1.163 nicm 1003: screen_write_initctx(ctx, &ttyctx, 1);
1.5 nicm 1004:
1.109 nicm 1005: screen_write_collect_clear(ctx, 0, screen_size_y(s) - 1);
1.17 nicm 1006: tty_write(tty_cmd_alignmenttest, &ttyctx);
1.1 nicm 1007: }
1008:
1009: /* Insert nx characters. */
1010: void
1.99 nicm 1011: screen_write_insertcharacter(struct screen_write_ctx *ctx, u_int nx, u_int bg)
1.1 nicm 1012: {
1013: struct screen *s = ctx->s;
1.17 nicm 1014: struct tty_ctx ttyctx;
1.1 nicm 1015:
1016: if (nx == 0)
1017: nx = 1;
1018:
1.9 nicm 1019: if (nx > screen_size_x(s) - s->cx)
1020: nx = screen_size_x(s) - s->cx;
1.1 nicm 1021: if (nx == 0)
1022: return;
1023:
1.107 nicm 1024: if (s->cx > screen_size_x(s) - 1)
1025: return;
1026:
1.163 nicm 1027: screen_write_initctx(ctx, &ttyctx, 0);
1.107 nicm 1028: ttyctx.bg = bg;
1.1 nicm 1029:
1.107 nicm 1030: grid_view_insert_cells(s->grid, s->cx, s->cy, nx, bg);
1.1 nicm 1031:
1.164 nicm 1032: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 1033: ttyctx.num = nx;
1034: tty_write(tty_cmd_insertcharacter, &ttyctx);
1.1 nicm 1035: }
1036:
1037: /* Delete nx characters. */
1038: void
1.99 nicm 1039: screen_write_deletecharacter(struct screen_write_ctx *ctx, u_int nx, u_int bg)
1.1 nicm 1040: {
1041: struct screen *s = ctx->s;
1.17 nicm 1042: struct tty_ctx ttyctx;
1.1 nicm 1043:
1044: if (nx == 0)
1045: nx = 1;
1046:
1.9 nicm 1047: if (nx > screen_size_x(s) - s->cx)
1048: nx = screen_size_x(s) - s->cx;
1.1 nicm 1049: if (nx == 0)
1050: return;
1051:
1.107 nicm 1052: if (s->cx > screen_size_x(s) - 1)
1053: return;
1054:
1.163 nicm 1055: screen_write_initctx(ctx, &ttyctx, 0);
1.107 nicm 1056: ttyctx.bg = bg;
1.1 nicm 1057:
1.107 nicm 1058: grid_view_delete_cells(s->grid, s->cx, s->cy, nx, bg);
1.1 nicm 1059:
1.164 nicm 1060: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 1061: ttyctx.num = nx;
1062: tty_write(tty_cmd_deletecharacter, &ttyctx);
1.59 nicm 1063: }
1064:
1065: /* Clear nx characters. */
1066: void
1.121 nicm 1067: screen_write_clearcharacter(struct screen_write_ctx *ctx, u_int nx, u_int bg)
1.59 nicm 1068: {
1069: struct screen *s = ctx->s;
1070: struct tty_ctx ttyctx;
1071:
1072: if (nx == 0)
1073: nx = 1;
1074:
1075: if (nx > screen_size_x(s) - s->cx)
1076: nx = screen_size_x(s) - s->cx;
1077: if (nx == 0)
1078: return;
1079:
1.107 nicm 1080: if (s->cx > screen_size_x(s) - 1)
1081: return;
1082:
1.163 nicm 1083: screen_write_initctx(ctx, &ttyctx, 0);
1.121 nicm 1084: ttyctx.bg = bg;
1.59 nicm 1085:
1.124 nicm 1086: grid_view_clear(s->grid, s->cx, s->cy, nx, 1, bg);
1.59 nicm 1087:
1.164 nicm 1088: screen_write_collect_flush(ctx, 0, __func__);
1.59 nicm 1089: ttyctx.num = nx;
1090: tty_write(tty_cmd_clearcharacter, &ttyctx);
1.1 nicm 1091: }
1092:
1093: /* Insert ny lines. */
1094: void
1.99 nicm 1095: screen_write_insertline(struct screen_write_ctx *ctx, u_int ny, u_int bg)
1.1 nicm 1096: {
1097: struct screen *s = ctx->s;
1.107 nicm 1098: struct grid *gd = s->grid;
1.17 nicm 1099: struct tty_ctx ttyctx;
1.1 nicm 1100:
1101: if (ny == 0)
1102: ny = 1;
1103:
1.11 nicm 1104: if (s->cy < s->rupper || s->cy > s->rlower) {
1105: if (ny > screen_size_y(s) - s->cy)
1106: ny = screen_size_y(s) - s->cy;
1107: if (ny == 0)
1108: return;
1109:
1.163 nicm 1110: screen_write_initctx(ctx, &ttyctx, 1);
1.107 nicm 1111: ttyctx.bg = bg;
1.11 nicm 1112:
1.107 nicm 1113: grid_view_insert_lines(gd, s->cy, ny, bg);
1.11 nicm 1114:
1.164 nicm 1115: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 1116: ttyctx.num = ny;
1117: tty_write(tty_cmd_insertline, &ttyctx);
1.11 nicm 1118: return;
1119: }
1120:
1121: if (ny > s->rlower + 1 - s->cy)
1122: ny = s->rlower + 1 - s->cy;
1.1 nicm 1123: if (ny == 0)
1124: return;
1.41 nicm 1125:
1.163 nicm 1126: screen_write_initctx(ctx, &ttyctx, 1);
1.107 nicm 1127: ttyctx.bg = bg;
1.1 nicm 1128:
1129: if (s->cy < s->rupper || s->cy > s->rlower)
1.107 nicm 1130: grid_view_insert_lines(gd, s->cy, ny, bg);
1131: else
1132: grid_view_insert_lines_region(gd, s->rlower, s->cy, ny, bg);
1.1 nicm 1133:
1.164 nicm 1134: screen_write_collect_flush(ctx, 0, __func__);
1135:
1.17 nicm 1136: ttyctx.num = ny;
1137: tty_write(tty_cmd_insertline, &ttyctx);
1.1 nicm 1138: }
1139:
1140: /* Delete ny lines. */
1141: void
1.99 nicm 1142: screen_write_deleteline(struct screen_write_ctx *ctx, u_int ny, u_int bg)
1.1 nicm 1143: {
1144: struct screen *s = ctx->s;
1.107 nicm 1145: struct grid *gd = s->grid;
1.17 nicm 1146: struct tty_ctx ttyctx;
1.1 nicm 1147:
1148: if (ny == 0)
1149: ny = 1;
1150:
1.11 nicm 1151: if (s->cy < s->rupper || s->cy > s->rlower) {
1152: if (ny > screen_size_y(s) - s->cy)
1153: ny = screen_size_y(s) - s->cy;
1154: if (ny == 0)
1155: return;
1156:
1.163 nicm 1157: screen_write_initctx(ctx, &ttyctx, 1);
1.107 nicm 1158: ttyctx.bg = bg;
1.11 nicm 1159:
1.107 nicm 1160: grid_view_delete_lines(gd, s->cy, ny, bg);
1.11 nicm 1161:
1.164 nicm 1162: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 1163: ttyctx.num = ny;
1164: tty_write(tty_cmd_deleteline, &ttyctx);
1.11 nicm 1165: return;
1166: }
1.41 nicm 1167:
1.11 nicm 1168: if (ny > s->rlower + 1 - s->cy)
1169: ny = s->rlower + 1 - s->cy;
1.1 nicm 1170: if (ny == 0)
1171: return;
1172:
1.163 nicm 1173: screen_write_initctx(ctx, &ttyctx, 1);
1.107 nicm 1174: ttyctx.bg = bg;
1.1 nicm 1175:
1176: if (s->cy < s->rupper || s->cy > s->rlower)
1.107 nicm 1177: grid_view_delete_lines(gd, s->cy, ny, bg);
1178: else
1179: grid_view_delete_lines_region(gd, s->rlower, s->cy, ny, bg);
1.1 nicm 1180:
1.164 nicm 1181: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 1182: ttyctx.num = ny;
1183: tty_write(tty_cmd_deleteline, &ttyctx);
1.1 nicm 1184: }
1185:
1186: /* Clear line at cursor. */
1187: void
1.99 nicm 1188: screen_write_clearline(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1189: {
1.193 nicm 1190: struct screen *s = ctx->s;
1191: struct grid_line *gl;
1192: u_int sx = screen_size_x(s);
1193: struct screen_write_citem *ci = ctx->item;
1.1 nicm 1194:
1.137 nicm 1195: gl = grid_get_line(s->grid, s->grid->hsize + s->cy);
1.140 nicm 1196: if (gl->cellsize == 0 && COLOUR_DEFAULT(bg))
1.92 nicm 1197: return;
1.1 nicm 1198:
1.99 nicm 1199: grid_view_clear(s->grid, 0, s->cy, sx, 1, bg);
1200:
1.109 nicm 1201: screen_write_collect_clear(ctx, s->cy, 1);
1.193 nicm 1202: ci->x = 0;
1203: ci->used = sx;
1204: ci->type = CLEAR;
1205: ci->bg = bg;
1206: TAILQ_INSERT_TAIL(&ctx->s->write_list[s->cy].items, ci, entry);
1207: ctx->item = screen_write_get_citem();
1.1 nicm 1208: }
1209:
1210: /* Clear to end of line from cursor. */
1211: void
1.99 nicm 1212: screen_write_clearendofline(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1213: {
1.193 nicm 1214: struct screen *s = ctx->s;
1215: struct grid_line *gl;
1216: u_int sx = screen_size_x(s);
1217: struct screen_write_citem *ci = ctx->item, *before;
1.165 nicm 1218:
1219: if (s->cx == 0) {
1220: screen_write_clearline(ctx, bg);
1221: return;
1222: }
1.1 nicm 1223:
1.137 nicm 1224: gl = grid_get_line(s->grid, s->grid->hsize + s->cy);
1.140 nicm 1225: if (s->cx > sx - 1 || (s->cx >= gl->cellsize && COLOUR_DEFAULT(bg)))
1.92 nicm 1226: return;
1.108 nicm 1227:
1.99 nicm 1228: grid_view_clear(s->grid, s->cx, s->cy, sx - s->cx, 1, bg);
1229:
1.193 nicm 1230: before = screen_write_collect_trim(ctx, s->cy, s->cx, sx - s->cx, NULL);
1.186 nicm 1231: ci->x = s->cx;
1.193 nicm 1232: ci->used = sx - s->cx;
1233: ci->type = CLEAR;
1.186 nicm 1234: ci->bg = bg;
1.193 nicm 1235: if (before == NULL)
1236: TAILQ_INSERT_TAIL(&ctx->s->write_list[s->cy].items, ci, entry);
1237: else
1238: TAILQ_INSERT_BEFORE(before, ci, entry);
1239: ctx->item = screen_write_get_citem();
1.1 nicm 1240: }
1241:
1242: /* Clear to start of line from cursor. */
1243: void
1.99 nicm 1244: screen_write_clearstartofline(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1245: {
1.165 nicm 1246: struct screen *s = ctx->s;
1.193 nicm 1247: u_int sx = screen_size_x(s);
1248: struct screen_write_citem *ci = ctx->item, *before;
1.165 nicm 1249:
1250: if (s->cx >= sx - 1) {
1251: screen_write_clearline(ctx, bg);
1252: return;
1253: }
1.1 nicm 1254:
1.109 nicm 1255: if (s->cx > sx - 1)
1.99 nicm 1256: grid_view_clear(s->grid, 0, s->cy, sx, 1, bg);
1.109 nicm 1257: else
1.99 nicm 1258: grid_view_clear(s->grid, 0, s->cy, s->cx + 1, 1, bg);
1.1 nicm 1259:
1.193 nicm 1260: before = screen_write_collect_trim(ctx, s->cy, 0, s->cx + 1, NULL);
1261: ci->x = 0;
1262: ci->used = s->cx + 1;
1263: ci->type = CLEAR;
1.186 nicm 1264: ci->bg = bg;
1.193 nicm 1265: if (before == NULL)
1266: TAILQ_INSERT_TAIL(&ctx->s->write_list[s->cy].items, ci, entry);
1267: else
1268: TAILQ_INSERT_BEFORE(before, ci, entry);
1269: ctx->item = screen_write_get_citem();
1.1 nicm 1270: }
1271:
1.101 nicm 1272: /* Move cursor to px,py. */
1.1 nicm 1273: void
1.147 nicm 1274: screen_write_cursormove(struct screen_write_ctx *ctx, int px, int py,
1275: int origin)
1.1 nicm 1276: {
1277: struct screen *s = ctx->s;
1278:
1.147 nicm 1279: if (origin && py != -1 && (s->mode & MODE_ORIGIN)) {
1.146 nicm 1280: if ((u_int)py > s->rlower - s->rupper)
1.144 nicm 1281: py = s->rlower;
1282: else
1283: py += s->rupper;
1284: }
1.145 nicm 1285:
1.146 nicm 1286: if (px != -1 && (u_int)px > screen_size_x(s) - 1)
1.145 nicm 1287: px = screen_size_x(s) - 1;
1.146 nicm 1288: if (py != -1 && (u_int)py > screen_size_y(s) - 1)
1.145 nicm 1289: py = screen_size_y(s) - 1;
1.1 nicm 1290:
1.193 nicm 1291: log_debug("%s: from %u,%u to %u,%u", __func__, s->cx, s->cy, px, py);
1.139 nicm 1292: screen_write_set_cursor(ctx, px, py);
1.1 nicm 1293: }
1294:
1.101 nicm 1295: /* Reverse index (up with scroll). */
1.1 nicm 1296: void
1.122 nicm 1297: screen_write_reverseindex(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1298: {
1299: struct screen *s = ctx->s;
1.17 nicm 1300: struct tty_ctx ttyctx;
1.1 nicm 1301:
1.165 nicm 1302: if (s->cy == s->rupper) {
1303: grid_view_scroll_region_down(s->grid, s->rupper, s->rlower, bg);
1304: screen_write_collect_flush(ctx, 0, __func__);
1305:
1306: screen_write_initctx(ctx, &ttyctx, 1);
1307: ttyctx.bg = bg;
1.1 nicm 1308:
1.165 nicm 1309: tty_write(tty_cmd_reverseindex, &ttyctx);
1310: } else if (s->cy > 0)
1.139 nicm 1311: screen_write_set_cursor(ctx, -1, s->cy - 1);
1.1 nicm 1312:
1313: }
1314:
1315: /* Set scroll region. */
1316: void
1.83 nicm 1317: screen_write_scrollregion(struct screen_write_ctx *ctx, u_int rupper,
1318: u_int rlower)
1.1 nicm 1319: {
1320: struct screen *s = ctx->s;
1321:
1322: if (rupper > screen_size_y(s) - 1)
1323: rupper = screen_size_y(s) - 1;
1324: if (rlower > screen_size_y(s) - 1)
1325: rlower = screen_size_y(s) - 1;
1.13 nicm 1326: if (rupper >= rlower) /* cannot be one line */
1.1 nicm 1327: return;
1328:
1.164 nicm 1329: screen_write_collect_flush(ctx, 0, __func__);
1.110 nicm 1330:
1.1 nicm 1331: /* Cursor moves to top-left. */
1.139 nicm 1332: screen_write_set_cursor(ctx, 0, 0);
1.1 nicm 1333:
1334: s->rupper = rupper;
1335: s->rlower = rlower;
1336: }
1337:
1.34 nicm 1338: /* Line feed. */
1.1 nicm 1339: void
1.122 nicm 1340: screen_write_linefeed(struct screen_write_ctx *ctx, int wrapped, u_int bg)
1.1 nicm 1341: {
1.20 nicm 1342: struct screen *s = ctx->s;
1.109 nicm 1343: struct grid *gd = s->grid;
1.20 nicm 1344: struct grid_line *gl;
1.1 nicm 1345:
1.137 nicm 1346: gl = grid_get_line(gd, gd->hsize + s->cy);
1.20 nicm 1347: if (wrapped)
1348: gl->flags |= GRID_LINE_WRAPPED;
1349:
1.114 nicm 1350: log_debug("%s: at %u,%u (region %u-%u)", __func__, s->cx, s->cy,
1351: s->rupper, s->rlower);
1352:
1.122 nicm 1353: if (bg != ctx->bg) {
1.164 nicm 1354: screen_write_collect_flush(ctx, 1, __func__);
1.122 nicm 1355: ctx->bg = bg;
1356: }
1357:
1.92 nicm 1358: if (s->cy == s->rlower) {
1.122 nicm 1359: grid_view_scroll_region_up(gd, s->rupper, s->rlower, bg);
1.193 nicm 1360: screen_write_collect_scroll(ctx, bg);
1.110 nicm 1361: ctx->scrolled++;
1.109 nicm 1362: } else if (s->cy < screen_size_y(s) - 1)
1.139 nicm 1363: screen_write_set_cursor(ctx, -1, s->cy + 1);
1.1 nicm 1364: }
1365:
1.110 nicm 1366: /* Scroll up. */
1367: void
1.122 nicm 1368: screen_write_scrollup(struct screen_write_ctx *ctx, u_int lines, u_int bg)
1.110 nicm 1369: {
1370: struct screen *s = ctx->s;
1371: struct grid *gd = s->grid;
1372: u_int i;
1373:
1374: if (lines == 0)
1375: lines = 1;
1376: else if (lines > s->rlower - s->rupper + 1)
1377: lines = s->rlower - s->rupper + 1;
1378:
1.122 nicm 1379: if (bg != ctx->bg) {
1.164 nicm 1380: screen_write_collect_flush(ctx, 1, __func__);
1.122 nicm 1381: ctx->bg = bg;
1382: }
1383:
1.110 nicm 1384: for (i = 0; i < lines; i++) {
1.122 nicm 1385: grid_view_scroll_region_up(gd, s->rupper, s->rlower, bg);
1.193 nicm 1386: screen_write_collect_scroll(ctx, bg);
1.110 nicm 1387: }
1388: ctx->scrolled += lines;
1.157 nicm 1389: }
1390:
1391: /* Scroll down. */
1392: void
1393: screen_write_scrolldown(struct screen_write_ctx *ctx, u_int lines, u_int bg)
1394: {
1395: struct screen *s = ctx->s;
1396: struct grid *gd = s->grid;
1397: struct tty_ctx ttyctx;
1398: u_int i;
1399:
1.163 nicm 1400: screen_write_initctx(ctx, &ttyctx, 1);
1.157 nicm 1401: ttyctx.bg = bg;
1402:
1403: if (lines == 0)
1404: lines = 1;
1405: else if (lines > s->rlower - s->rupper + 1)
1406: lines = s->rlower - s->rupper + 1;
1407:
1408: for (i = 0; i < lines; i++)
1409: grid_view_scroll_region_down(gd, s->rupper, s->rlower, bg);
1410:
1.164 nicm 1411: screen_write_collect_flush(ctx, 0, __func__);
1.157 nicm 1412: ttyctx.num = lines;
1413: tty_write(tty_cmd_scrolldown, &ttyctx);
1.110 nicm 1414: }
1415:
1.1 nicm 1416: /* Carriage return (cursor to start of line). */
1417: void
1418: screen_write_carriagereturn(struct screen_write_ctx *ctx)
1419: {
1.139 nicm 1420: screen_write_set_cursor(ctx, 0, -1);
1.1 nicm 1421: }
1422:
1423: /* Clear to end of screen from cursor. */
1424: void
1.99 nicm 1425: screen_write_clearendofscreen(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1426: {
1427: struct screen *s = ctx->s;
1.107 nicm 1428: struct grid *gd = s->grid;
1.17 nicm 1429: struct tty_ctx ttyctx;
1.92 nicm 1430: u_int sx = screen_size_x(s), sy = screen_size_y(s);
1.1 nicm 1431:
1.163 nicm 1432: screen_write_initctx(ctx, &ttyctx, 1);
1.99 nicm 1433: ttyctx.bg = bg;
1.1 nicm 1434:
1.46 nicm 1435: /* Scroll into history if it is enabled and clearing entire screen. */
1.206 nicm 1436: if (s->cx == 0 &&
1437: s->cy == 0 &&
1438: (gd->flags & GRID_HISTORY) &&
1439: ctx->wp != NULL &&
1440: options_get_number(ctx->wp->options, "scroll-on-clear"))
1.107 nicm 1441: grid_view_clear_history(gd, bg);
1.109 nicm 1442: else {
1443: if (s->cx <= sx - 1)
1.107 nicm 1444: grid_view_clear(gd, s->cx, s->cy, sx - s->cx, 1, bg);
1445: grid_view_clear(gd, 0, s->cy + 1, sx, sy - (s->cy + 1), bg);
1.46 nicm 1446: }
1.1 nicm 1447:
1.109 nicm 1448: screen_write_collect_clear(ctx, s->cy + 1, sy - (s->cy + 1));
1.164 nicm 1449: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 1450: tty_write(tty_cmd_clearendofscreen, &ttyctx);
1.1 nicm 1451: }
1452:
1453: /* Clear to start of screen. */
1454: void
1.105 nicm 1455: screen_write_clearstartofscreen(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1456: {
1457: struct screen *s = ctx->s;
1.17 nicm 1458: struct tty_ctx ttyctx;
1.92 nicm 1459: u_int sx = screen_size_x(s);
1.1 nicm 1460:
1.163 nicm 1461: screen_write_initctx(ctx, &ttyctx, 1);
1.105 nicm 1462: ttyctx.bg = bg;
1.1 nicm 1463:
1.109 nicm 1464: if (s->cy > 0)
1.105 nicm 1465: grid_view_clear(s->grid, 0, 0, sx, s->cy, bg);
1.109 nicm 1466: if (s->cx > sx - 1)
1.120 nicm 1467: grid_view_clear(s->grid, 0, s->cy, sx, 1, bg);
1.109 nicm 1468: else
1.120 nicm 1469: grid_view_clear(s->grid, 0, s->cy, s->cx + 1, 1, bg);
1.1 nicm 1470:
1.109 nicm 1471: screen_write_collect_clear(ctx, 0, s->cy);
1.164 nicm 1472: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 1473: tty_write(tty_cmd_clearstartofscreen, &ttyctx);
1.1 nicm 1474: }
1475:
1476: /* Clear entire screen. */
1477: void
1.99 nicm 1478: screen_write_clearscreen(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1479: {
1480: struct screen *s = ctx->s;
1.17 nicm 1481: struct tty_ctx ttyctx;
1.92 nicm 1482: u_int sx = screen_size_x(s), sy = screen_size_y(s);
1.1 nicm 1483:
1.163 nicm 1484: screen_write_initctx(ctx, &ttyctx, 1);
1.99 nicm 1485: ttyctx.bg = bg;
1.1 nicm 1486:
1.46 nicm 1487: /* Scroll into history if it is enabled. */
1.207 nicm 1488: if ((s->grid->flags & GRID_HISTORY) &&
1489: ctx->wp != NULL &&
1490: options_get_number(ctx->wp->options, "scroll-on-clear"))
1.99 nicm 1491: grid_view_clear_history(s->grid, bg);
1.83 nicm 1492: else
1.99 nicm 1493: grid_view_clear(s->grid, 0, 0, sx, sy, bg);
1.1 nicm 1494:
1.109 nicm 1495: screen_write_collect_clear(ctx, 0, sy);
1.17 nicm 1496: tty_write(tty_cmd_clearscreen, &ttyctx);
1.51 nicm 1497: }
1498:
1499: /* Clear entire history. */
1500: void
1501: screen_write_clearhistory(struct screen_write_ctx *ctx)
1502: {
1.156 nicm 1503: grid_clear_history(ctx->s->grid);
1.197 nicm 1504: }
1505:
1506: /* Force a full redraw. */
1507: void
1508: screen_write_fullredraw(struct screen_write_ctx *ctx)
1509: {
1510: struct tty_ctx ttyctx;
1511:
1512: screen_write_collect_flush(ctx, 0, __func__);
1513:
1.211 nicm 1514: screen_write_initctx(ctx, &ttyctx, 1);
1515: if (ttyctx.redraw_cb != NULL)
1.210 nicm 1516: ttyctx.redraw_cb(&ttyctx);
1.1 nicm 1517: }
1518:
1.193 nicm 1519: /* Trim collected items. */
1520: static struct screen_write_citem *
1521: screen_write_collect_trim(struct screen_write_ctx *ctx, u_int y, u_int x,
1522: u_int used, int *wrapped)
1523: {
1524: struct screen_write_cline *cl = &ctx->s->write_list[y];
1525: struct screen_write_citem *ci, *ci2, *tmp, *before = NULL;
1526: u_int sx = x, ex = x + used - 1;
1527: u_int csx, cex;
1528:
1529: if (TAILQ_EMPTY(&cl->items))
1530: return (NULL);
1531: TAILQ_FOREACH_SAFE(ci, &cl->items, entry, tmp) {
1532: csx = ci->x;
1533: cex = ci->x + ci->used - 1;
1534:
1535: /* Item is entirely before. */
1536: if (cex < sx) {
1537: log_debug("%s: %p %u-%u before %u-%u", __func__, ci,
1538: csx, cex, sx, ex);
1539: continue;
1540: }
1.165 nicm 1541:
1.193 nicm 1542: /* Item is entirely after. */
1543: if (csx > ex) {
1544: log_debug("%s: %p %u-%u after %u-%u", __func__, ci,
1545: csx, cex, sx, ex);
1546: before = ci;
1.165 nicm 1547: break;
1.193 nicm 1548: }
1549:
1550: /* Item is entirely inside. */
1551: if (csx >= sx && cex <= ex) {
1552: log_debug("%s: %p %u-%u inside %u-%u", __func__, ci,
1553: csx, cex, sx, ex);
1554: TAILQ_REMOVE(&cl->items, ci, entry);
1555: screen_write_free_citem(ci);
1556: if (csx == 0 && ci->wrapped && wrapped != NULL)
1557: *wrapped = 1;
1.165 nicm 1558: continue;
1559: }
1560:
1.193 nicm 1561: /* Item under the start. */
1562: if (csx < sx && cex >= sx && cex <= ex) {
1563: log_debug("%s: %p %u-%u start %u-%u", __func__, ci,
1564: csx, cex, sx, ex);
1565: ci->used = sx - csx;
1566: log_debug("%s: %p now %u-%u", __func__, ci, ci->x,
1567: ci->x + ci->used + 1);
1.165 nicm 1568: continue;
1.193 nicm 1569: }
1570:
1571: /* Item covers the end. */
1572: if (cex > ex && csx >= sx && csx <= ex) {
1573: log_debug("%s: %p %u-%u end %u-%u", __func__, ci,
1574: csx, cex, sx, ex);
1575: ci->x = ex + 1;
1576: ci->used = cex - ex;
1577: log_debug("%s: %p now %u-%u", __func__, ci, ci->x,
1578: ci->x + ci->used + 1);
1579: before = ci;
1.165 nicm 1580: break;
1581: }
1.193 nicm 1582:
1583: /* Item must cover both sides. */
1584: log_debug("%s: %p %u-%u under %u-%u", __func__, ci,
1585: csx, cex, sx, ex);
1586: ci2 = screen_write_get_citem();
1587: ci2->type = ci->type;
1588: ci2->bg = ci->bg;
1589: memcpy(&ci2->gc, &ci->gc, sizeof ci2->gc);
1590: TAILQ_INSERT_AFTER(&cl->items, ci, ci2, entry);
1591:
1592: ci->used = sx - csx;
1593: ci2->x = ex + 1;
1594: ci2->used = cex - ex;
1595:
1596: log_debug("%s: %p now %u-%u (%p) and %u-%u (%p)", __func__, ci,
1597: ci->x, ci->x + ci->used - 1, ci, ci2->x,
1598: ci2->x + ci2->used - 1, ci2);
1599: before = ci2;
1600: break;
1601: }
1602: return (before);
1.165 nicm 1603: }
1604:
1.170 nicm 1605: /* Clear collected lines. */
1.109 nicm 1606: static void
1607: screen_write_collect_clear(struct screen_write_ctx *ctx, u_int y, u_int n)
1608: {
1.193 nicm 1609: struct screen_write_cline *cl;
1610: u_int i;
1.109 nicm 1611:
1.151 nicm 1612: for (i = y; i < y + n; i++) {
1.172 nicm 1613: cl = &ctx->s->write_list[i];
1.193 nicm 1614: TAILQ_CONCAT(&screen_write_citem_freelist, &cl->items, entry);
1.109 nicm 1615: }
1616: }
1617:
1618: /* Scroll collected lines up. */
1619: static void
1.193 nicm 1620: screen_write_collect_scroll(struct screen_write_ctx *ctx, u_int bg)
1.109 nicm 1621: {
1.193 nicm 1622: struct screen *s = ctx->s;
1623: struct screen_write_cline *cl;
1624: u_int y;
1625: char *saved;
1626: struct screen_write_citem *ci;
1.109 nicm 1627:
1.114 nicm 1628: log_debug("%s: at %u,%u (region %u-%u)", __func__, s->cx, s->cy,
1629: s->rupper, s->rlower);
1630:
1.109 nicm 1631: screen_write_collect_clear(ctx, s->rupper, 1);
1.172 nicm 1632: saved = ctx->s->write_list[s->rupper].data;
1.109 nicm 1633: for (y = s->rupper; y < s->rlower; y++) {
1.172 nicm 1634: cl = &ctx->s->write_list[y + 1];
1635: TAILQ_CONCAT(&ctx->s->write_list[y].items, &cl->items, entry);
1636: ctx->s->write_list[y].data = cl->data;
1.109 nicm 1637: }
1.172 nicm 1638: ctx->s->write_list[s->rlower].data = saved;
1.193 nicm 1639:
1640: ci = screen_write_get_citem();
1641: ci->x = 0;
1642: ci->used = screen_size_x(s);
1643: ci->type = CLEAR;
1644: ci->bg = bg;
1645: TAILQ_INSERT_TAIL(&ctx->s->write_list[s->rlower].items, ci, entry);
1.109 nicm 1646: }
1647:
1648: /* Flush collected lines. */
1649: static void
1.164 nicm 1650: screen_write_collect_flush(struct screen_write_ctx *ctx, int scroll_only,
1651: const char *from)
1.109 nicm 1652: {
1.193 nicm 1653: struct screen *s = ctx->s;
1654: struct screen_write_citem *ci, *tmp;
1655: struct screen_write_cline *cl;
1656: u_int y, cx, cy, last, items = 0;
1657: struct tty_ctx ttyctx;
1.110 nicm 1658:
1659: if (ctx->scrolled != 0) {
1660: log_debug("%s: scrolled %u (region %u-%u)", __func__,
1661: ctx->scrolled, s->rupper, s->rlower);
1662: if (ctx->scrolled > s->rlower - s->rupper + 1)
1663: ctx->scrolled = s->rlower - s->rupper + 1;
1664:
1.163 nicm 1665: screen_write_initctx(ctx, &ttyctx, 1);
1.110 nicm 1666: ttyctx.num = ctx->scrolled;
1.122 nicm 1667: ttyctx.bg = ctx->bg;
1.110 nicm 1668: tty_write(tty_cmd_scrollup, &ttyctx);
1669: }
1670: ctx->scrolled = 0;
1.122 nicm 1671: ctx->bg = 8;
1672:
1.111 nicm 1673: if (scroll_only)
1674: return;
1.109 nicm 1675:
1676: cx = s->cx; cy = s->cy;
1677: for (y = 0; y < screen_size_y(s); y++) {
1.172 nicm 1678: cl = &ctx->s->write_list[y];
1.193 nicm 1679: last = UINT_MAX;
1.172 nicm 1680: TAILQ_FOREACH_SAFE(ci, &cl->items, entry, tmp) {
1.193 nicm 1681: if (last != UINT_MAX && ci->x <= last) {
1682: fatalx("collect list not in order: %u <= %u",
1683: ci->x, last);
1684: }
1.144 nicm 1685: screen_write_set_cursor(ctx, ci->x, y);
1.193 nicm 1686: if (ci->type == CLEAR) {
1.167 nicm 1687: screen_write_initctx(ctx, &ttyctx, 1);
1.165 nicm 1688: ttyctx.bg = ci->bg;
1.193 nicm 1689: ttyctx.num = ci->used;
1690: tty_write(tty_cmd_clearcharacter, &ttyctx);
1.165 nicm 1691: } else {
1.167 nicm 1692: screen_write_initctx(ctx, &ttyctx, 0);
1.165 nicm 1693: ttyctx.cell = &ci->gc;
1694: ttyctx.wrapped = ci->wrapped;
1.172 nicm 1695: ttyctx.ptr = cl->data + ci->x;
1.165 nicm 1696: ttyctx.num = ci->used;
1697: tty_write(tty_cmd_cells, &ttyctx);
1698: }
1.116 nicm 1699: items++;
1.109 nicm 1700:
1.172 nicm 1701: TAILQ_REMOVE(&cl->items, ci, entry);
1.193 nicm 1702: screen_write_free_citem(ci);
1703: last = ci->x;
1.109 nicm 1704: }
1705: }
1706: s->cx = cx; s->cy = cy;
1.116 nicm 1707:
1.193 nicm 1708: log_debug("%s: flushed %u items (%s)", __func__, items, from);
1.109 nicm 1709: }
1710:
1711: /* Finish and store collected cells. */
1712: void
1713: screen_write_collect_end(struct screen_write_ctx *ctx)
1714: {
1.193 nicm 1715: struct screen *s = ctx->s;
1716: struct screen_write_citem *ci = ctx->item, *before;
1717: struct screen_write_cline *cl = &s->write_list[s->cy];
1718: struct grid_cell gc;
1719: u_int xx;
1720: int wrapped = ci->wrapped;
1.109 nicm 1721:
1722: if (ci->used == 0)
1723: return;
1724:
1.193 nicm 1725: before = screen_write_collect_trim(ctx, s->cy, s->cx, ci->used,
1726: &wrapped);
1.109 nicm 1727: ci->x = s->cx;
1.193 nicm 1728: ci->wrapped = wrapped;
1729: if (before == NULL)
1730: TAILQ_INSERT_TAIL(&cl->items, ci, entry);
1731: else
1732: TAILQ_INSERT_BEFORE(before, ci, entry);
1733: ctx->item = screen_write_get_citem();
1.109 nicm 1734:
1.170 nicm 1735: log_debug("%s: %u %.*s (at %u,%u)", __func__, ci->used,
1.172 nicm 1736: (int)ci->used, cl->data + ci->x, s->cx, s->cy);
1.109 nicm 1737:
1.131 nicm 1738: if (s->cx != 0) {
1739: for (xx = s->cx; xx > 0; xx--) {
1740: grid_view_get_cell(s->grid, xx, s->cy, &gc);
1741: if (~gc.flags & GRID_FLAG_PADDING)
1742: break;
1.136 nicm 1743: grid_view_set_cell(s->grid, xx, s->cy,
1744: &grid_default_cell);
1.131 nicm 1745: }
1.139 nicm 1746: if (gc.data.width > 1) {
1.136 nicm 1747: grid_view_set_cell(s->grid, xx, s->cy,
1748: &grid_default_cell);
1.139 nicm 1749: }
1.131 nicm 1750: }
1751:
1.172 nicm 1752: grid_view_set_cells(s->grid, s->cx, s->cy, &ci->gc, cl->data + ci->x,
1753: ci->used);
1.139 nicm 1754: screen_write_set_cursor(ctx, s->cx + ci->used, -1);
1.131 nicm 1755:
1756: for (xx = s->cx; xx < screen_size_x(s); xx++) {
1757: grid_view_get_cell(s->grid, xx, s->cy, &gc);
1758: if (~gc.flags & GRID_FLAG_PADDING)
1759: break;
1760: grid_view_set_cell(s->grid, xx, s->cy, &grid_default_cell);
1761: }
1.109 nicm 1762: }
1763:
1764: /* Write cell data, collecting if necessary. */
1765: void
1766: screen_write_collect_add(struct screen_write_ctx *ctx,
1767: const struct grid_cell *gc)
1768: {
1.193 nicm 1769: struct screen *s = ctx->s;
1770: struct screen_write_citem *ci;
1771: u_int sx = screen_size_x(s);
1772: int collect;
1.109 nicm 1773:
1774: /*
1775: * Don't need to check that the attributes and whatnot are still the
1.116 nicm 1776: * same - input_parse will end the collection when anything that isn't
1.159 nicm 1777: * a plain character is encountered.
1.109 nicm 1778: */
1779:
1780: collect = 1;
1.136 nicm 1781: if (gc->data.width != 1 || gc->data.size != 1 || *gc->data.data >= 0x7f)
1.109 nicm 1782: collect = 0;
1783: else if (gc->attr & GRID_ATTR_CHARSET)
1784: collect = 0;
1785: else if (~s->mode & MODE_WRAP)
1786: collect = 0;
1787: else if (s->mode & MODE_INSERT)
1788: collect = 0;
1.138 nicm 1789: else if (s->sel != NULL)
1.109 nicm 1790: collect = 0;
1791: if (!collect) {
1792: screen_write_collect_end(ctx);
1.164 nicm 1793: screen_write_collect_flush(ctx, 0, __func__);
1.109 nicm 1794: screen_write_cell(ctx, gc);
1795: return;
1796: }
1797:
1798: if (s->cx > sx - 1 || ctx->item->used > sx - 1 - s->cx)
1799: screen_write_collect_end(ctx);
1.118 nicm 1800: ci = ctx->item; /* may have changed */
1801:
1.109 nicm 1802: if (s->cx > sx - 1) {
1.114 nicm 1803: log_debug("%s: wrapped at %u,%u", __func__, s->cx, s->cy);
1.118 nicm 1804: ci->wrapped = 1;
1.122 nicm 1805: screen_write_linefeed(ctx, 1, 8);
1.139 nicm 1806: screen_write_set_cursor(ctx, 0, -1);
1.109 nicm 1807: }
1808:
1809: if (ci->used == 0)
1810: memcpy(&ci->gc, gc, sizeof ci->gc);
1.172 nicm 1811: if (ctx->s->write_list[s->cy].data == NULL)
1812: ctx->s->write_list[s->cy].data = xmalloc(screen_size_x(ctx->s));
1813: ctx->s->write_list[s->cy].data[s->cx + ci->used++] = gc->data.data[0];
1.109 nicm 1814: }
1815:
1.1 nicm 1816: /* Write cell data. */
1817: void
1.60 nicm 1818: screen_write_cell(struct screen_write_ctx *ctx, const struct grid_cell *gc)
1.1 nicm 1819: {
1820: struct screen *s = ctx->s;
1821: struct grid *gd = s->grid;
1.196 nicm 1822: const struct utf8_data *ud = &gc->data;
1823: const struct utf8_data zwj = { "\342\200\215", 0, 3, 0 };
1.109 nicm 1824: struct grid_line *gl;
1825: struct grid_cell_entry *gce;
1826: struct grid_cell tmp_gc, now_gc;
1.15 nicm 1827: struct tty_ctx ttyctx;
1.92 nicm 1828: u_int sx = screen_size_x(s), sy = screen_size_y(s);
1.213 nicm 1829: u_int width = gc->data.width, xx, last, cx, cy;
1.109 nicm 1830: int selected, skip = 1;
1.1 nicm 1831:
1.109 nicm 1832: /* Ignore padding cells. */
1.1 nicm 1833: if (gc->flags & GRID_FLAG_PADDING)
1834: return;
1.32 nicm 1835:
1.196 nicm 1836: /*
1837: * If this is a zero width joiner, set the flag so the next character
1838: * will be treated as zero width and appended. Note that we assume a
1839: * ZWJ will not change the width - the width of the first character is
1840: * used.
1841: */
1842: if (ud->size == 3 && memcmp(ud->data, "\342\200\215", 3) == 0) {
1843: log_debug("zero width joiner at %u,%u", s->cx, s->cy);
1844: ctx->flags |= SCREEN_WRITE_ZWJ;
1845: return;
1846: }
1847:
1848: /*
1849: * If the width is zero, combine onto the previous character. We always
1850: * combine with the cell to the left of the cursor position. In theory,
1851: * the application could have moved the cursor somewhere else, but if
1852: * they are silly enough to do that, who cares?
1853: */
1854: if (ctx->flags & SCREEN_WRITE_ZWJ) {
1855: screen_write_collect_flush(ctx, 0, __func__);
1.213 nicm 1856: screen_write_combine(ctx, &zwj, &xx, &cx);
1.196 nicm 1857: }
1858: if (width == 0 || (ctx->flags & SCREEN_WRITE_ZWJ)) {
1859: ctx->flags &= ~SCREEN_WRITE_ZWJ;
1.164 nicm 1860: screen_write_collect_flush(ctx, 0, __func__);
1.213 nicm 1861: if ((gc = screen_write_combine(ctx, ud, &xx, &cx)) != NULL) {
1.212 nicm 1862: cy = s->cy;
1.144 nicm 1863: screen_write_set_cursor(ctx, xx, s->cy);
1.163 nicm 1864: screen_write_initctx(ctx, &ttyctx, 0);
1.104 nicm 1865: ttyctx.cell = gc;
1866: tty_write(tty_cmd_cell, &ttyctx);
1.213 nicm 1867: s->cx = cx; s->cy = cy;
1.1 nicm 1868: }
1869: return;
1870: }
1.112 nicm 1871:
1872: /* Flush any existing scrolling. */
1.164 nicm 1873: screen_write_collect_flush(ctx, 1, __func__);
1.1 nicm 1874:
1.109 nicm 1875: /* If this character doesn't fit, ignore it. */
1876: if ((~s->mode & MODE_WRAP) &&
1877: width > 1 &&
1878: (width > sx || (s->cx != sx && s->cx > sx - width)))
1879: return;
1880:
1.6 nicm 1881: /* If in insert mode, make space for the cells. */
1.98 nicm 1882: if (s->mode & MODE_INSERT) {
1.109 nicm 1883: grid_view_insert_cells(s->grid, s->cx, s->cy, width, 8);
1884: skip = 0;
1885: }
1.6 nicm 1886:
1.20 nicm 1887: /* Check this will fit on the current line and wrap if not. */
1.92 nicm 1888: if ((s->mode & MODE_WRAP) && s->cx > sx - width) {
1.128 nicm 1889: log_debug("%s: wrapped at %u,%u", __func__, s->cx, s->cy);
1.122 nicm 1890: screen_write_linefeed(ctx, 1, 8);
1.139 nicm 1891: screen_write_set_cursor(ctx, 0, -1);
1.164 nicm 1892: screen_write_collect_flush(ctx, 1, __func__);
1.1 nicm 1893: }
1894:
1.64 nicm 1895: /* Sanity check cursor position. */
1.92 nicm 1896: if (s->cx > sx - width || s->cy > sy - 1)
1.1 nicm 1897: return;
1.163 nicm 1898: screen_write_initctx(ctx, &ttyctx, 0);
1.106 nicm 1899:
1.1 nicm 1900: /* Handle overwriting of UTF-8 characters. */
1.137 nicm 1901: gl = grid_get_line(s->grid, s->grid->hsize + s->cy);
1.92 nicm 1902: if (gl->flags & GRID_LINE_EXTENDED) {
1903: grid_view_get_cell(gd, s->cx, s->cy, &now_gc);
1904: if (screen_write_overwrite(ctx, &now_gc, width))
1905: skip = 0;
1906: }
1.1 nicm 1907:
1908: /*
1909: * If the new character is UTF-8 wide, fill in padding cells. Have
1910: * already ensured there is enough room.
1911: */
1.89 nicm 1912: for (xx = s->cx + 1; xx < s->cx + width; xx++) {
1.131 nicm 1913: log_debug("%s: new padding at %u,%u", __func__, xx, s->cy);
1.184 nicm 1914: grid_view_set_padding(gd, xx, s->cy);
1.89 nicm 1915: skip = 0;
1916: }
1917:
1918: /* If no change, do not draw. */
1.92 nicm 1919: if (skip) {
1920: if (s->cx >= gl->cellsize)
1921: skip = grid_cells_equal(gc, &grid_default_cell);
1922: else {
1923: gce = &gl->celldata[s->cx];
1924: if (gce->flags & GRID_FLAG_EXTENDED)
1925: skip = 0;
1.95 nicm 1926: else if (gc->flags != gce->flags)
1.92 nicm 1927: skip = 0;
1928: else if (gc->attr != gce->data.attr)
1929: skip = 0;
1930: else if (gc->fg != gce->data.fg)
1931: skip = 0;
1932: else if (gc->bg != gce->data.bg)
1933: skip = 0;
1.95 nicm 1934: else if (gc->data.width != 1)
1935: skip = 0;
1.109 nicm 1936: else if (gc->data.size != 1)
1937: skip = 0;
1.95 nicm 1938: else if (gce->data.data != gc->data.data[0])
1.92 nicm 1939: skip = 0;
1940: }
1941: }
1.1 nicm 1942:
1.127 nicm 1943: /* Update the selected flag and set the cell. */
1.90 nicm 1944: selected = screen_check_selection(s, s->cx, s->cy);
1.109 nicm 1945: if (selected && (~gc->flags & GRID_FLAG_SELECTED)) {
1.90 nicm 1946: memcpy(&tmp_gc, gc, sizeof tmp_gc);
1947: tmp_gc.flags |= GRID_FLAG_SELECTED;
1948: grid_view_set_cell(gd, s->cx, s->cy, &tmp_gc);
1.109 nicm 1949: } else if (!selected && (gc->flags & GRID_FLAG_SELECTED)) {
1.90 nicm 1950: memcpy(&tmp_gc, gc, sizeof tmp_gc);
1951: tmp_gc.flags &= ~GRID_FLAG_SELECTED;
1952: grid_view_set_cell(gd, s->cx, s->cy, &tmp_gc);
1953: } else if (!skip)
1.89 nicm 1954: grid_view_set_cell(gd, s->cx, s->cy, gc);
1.109 nicm 1955: if (selected)
1956: skip = 0;
1.1 nicm 1957:
1.64 nicm 1958: /*
1959: * Move the cursor. If not wrapping, stick at the last character and
1960: * replace it.
1961: */
1.65 nicm 1962: last = !(s->mode & MODE_WRAP);
1.92 nicm 1963: if (s->cx <= sx - last - width)
1.139 nicm 1964: screen_write_set_cursor(ctx, s->cx + width, -1);
1.64 nicm 1965: else
1.139 nicm 1966: screen_write_set_cursor(ctx, sx - last, -1);
1.1 nicm 1967:
1.89 nicm 1968: /* Create space for character in insert mode. */
1.109 nicm 1969: if (s->mode & MODE_INSERT) {
1.164 nicm 1970: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 1971: ttyctx.num = width;
1972: tty_write(tty_cmd_insertcharacter, &ttyctx);
1973: }
1.89 nicm 1974:
1975: /* Write to the screen. */
1.109 nicm 1976: if (!skip) {
1977: if (selected) {
1978: screen_select_cell(s, &tmp_gc, gc);
1979: ttyctx.cell = &tmp_gc;
1980: } else
1981: ttyctx.cell = gc;
1.16 nicm 1982: tty_write(tty_cmd_cell, &ttyctx);
1.193 nicm 1983: }
1.35 nicm 1984: }
1985:
1986: /* Combine a UTF-8 zero-width character onto the previous. */
1.104 nicm 1987: static const struct grid_cell *
1988: screen_write_combine(struct screen_write_ctx *ctx, const struct utf8_data *ud,
1.213 nicm 1989: u_int *xx, u_int *cx)
1.35 nicm 1990: {
1991: struct screen *s = ctx->s;
1992: struct grid *gd = s->grid;
1.104 nicm 1993: static struct grid_cell gc;
1.213 nicm 1994: u_int n, width;
1.35 nicm 1995:
1996: /* Can't combine if at 0. */
1.213 nicm 1997: if (s->cx == 0) {
1998: *xx = 0;
1.104 nicm 1999: return (NULL);
1.213 nicm 2000: }
2001: *xx = s->cx;
1.35 nicm 2002:
1.60 nicm 2003: /* Empty data is out. */
2004: if (ud->size == 0)
1.37 nicm 2005: fatalx("UTF-8 data empty");
2006:
1.60 nicm 2007: /* Retrieve the previous cell. */
1.119 nicm 2008: for (n = 1; n <= s->cx; n++) {
1.104 nicm 2009: grid_view_get_cell(gd, s->cx - n, s->cy, &gc);
2010: if (~gc.flags & GRID_FLAG_PADDING)
2011: break;
2012: }
1.119 nicm 2013: if (n > s->cx)
1.104 nicm 2014: return (NULL);
1.35 nicm 2015:
1.60 nicm 2016: /* Check there is enough space. */
1.77 nicm 2017: if (gc.data.size + ud->size > sizeof gc.data.data)
1.104 nicm 2018: return (NULL);
1.213 nicm 2019: (*xx) -= n;
1.104 nicm 2020:
1.213 nicm 2021: log_debug("%s: %.*s onto %.*s at %u,%u (width %u)", __func__,
2022: (int)ud->size, ud->data, (int)gc.data.size, gc.data.data, *xx,
2023: s->cy, gc.data.width);
1.35 nicm 2024:
1.77 nicm 2025: /* Append the data. */
2026: memcpy(gc.data.data + gc.data.size, ud->data, ud->size);
2027: gc.data.size += ud->size;
1.213 nicm 2028: width = gc.data.width;
1.212 nicm 2029:
2030: /* If this is U+FE0F VARIATION SELECTOR-16, force the width to 2. */
2031: if (gc.data.width == 1 &&
1.213 nicm 2032: ud->size == 3 &&
2033: memcmp(ud->data, "\357\270\217", 3) == 0) {
1.212 nicm 2034: grid_view_set_padding(gd, (*xx) + 1, s->cy);
2035: gc.data.width = 2;
1.213 nicm 2036: width += 2;
1.212 nicm 2037: }
1.77 nicm 2038:
2039: /* Set the new cell. */
1.104 nicm 2040: grid_view_set_cell(gd, *xx, s->cy, &gc);
1.35 nicm 2041:
1.213 nicm 2042: *cx = (*xx) + width;
2043: log_debug("%s: character at %u; cursor at %u", __func__, *xx, *cx);
1.104 nicm 2044: return (&gc);
1.1 nicm 2045: }
2046:
2047: /*
2048: * UTF-8 wide characters are a bit of an annoyance. They take up more than one
2049: * cell on the screen, so following cells must not be drawn by marking them as
2050: * padding.
2051: *
2052: * So far, so good. The problem is, when overwriting a padding cell, or a UTF-8
2053: * character, it is necessary to also overwrite any other cells which covered
2054: * by the same character.
2055: */
1.89 nicm 2056: static int
2057: screen_write_overwrite(struct screen_write_ctx *ctx, struct grid_cell *gc,
2058: u_int width)
1.1 nicm 2059: {
2060: struct screen *s = ctx->s;
2061: struct grid *gd = s->grid;
1.89 nicm 2062: struct grid_cell tmp_gc;
1.1 nicm 2063: u_int xx;
1.89 nicm 2064: int done = 0;
1.1 nicm 2065:
1.89 nicm 2066: if (gc->flags & GRID_FLAG_PADDING) {
1.1 nicm 2067: /*
2068: * A padding cell, so clear any following and leading padding
2069: * cells back to the character. Don't overwrite the current
2070: * cell as that happens later anyway.
2071: */
2072: xx = s->cx + 1;
2073: while (--xx > 0) {
1.89 nicm 2074: grid_view_get_cell(gd, xx, s->cy, &tmp_gc);
2075: if (~tmp_gc.flags & GRID_FLAG_PADDING)
1.1 nicm 2076: break;
1.131 nicm 2077: log_debug("%s: padding at %u,%u", __func__, xx, s->cy);
1.1 nicm 2078: grid_view_set_cell(gd, xx, s->cy, &grid_default_cell);
2079: }
2080:
2081: /* Overwrite the character at the start of this padding. */
1.131 nicm 2082: log_debug("%s: character at %u,%u", __func__, xx, s->cy);
1.1 nicm 2083: grid_view_set_cell(gd, xx, s->cy, &grid_default_cell);
1.89 nicm 2084: done = 1;
1.43 nicm 2085: }
1.1 nicm 2086:
1.43 nicm 2087: /*
1.95 nicm 2088: * Overwrite any padding cells that belong to any UTF-8 characters
2089: * we'll be overwriting with the current character.
1.43 nicm 2090: */
1.95 nicm 2091: if (width != 1 ||
2092: gc->data.width != 1 ||
2093: gc->flags & GRID_FLAG_PADDING) {
1.89 nicm 2094: xx = s->cx + width - 1;
2095: while (++xx < screen_size_x(s)) {
2096: grid_view_get_cell(gd, xx, s->cy, &tmp_gc);
2097: if (~tmp_gc.flags & GRID_FLAG_PADDING)
2098: break;
1.160 nicm 2099: log_debug("%s: overwrite at %u,%u", __func__, xx,
2100: s->cy);
1.89 nicm 2101: grid_view_set_cell(gd, xx, s->cy, &grid_default_cell);
2102: done = 1;
2103: }
1.1 nicm 2104: }
1.89 nicm 2105:
2106: return (done);
1.50 nicm 2107: }
2108:
1.107 nicm 2109: /* Set external clipboard. */
1.50 nicm 2110: void
1.208 nicm 2111: screen_write_setselection(struct screen_write_ctx *ctx, const char *flags,
2112: u_char *str, u_int len)
1.50 nicm 2113: {
2114: struct tty_ctx ttyctx;
2115:
1.163 nicm 2116: screen_write_initctx(ctx, &ttyctx, 0);
1.50 nicm 2117: ttyctx.ptr = str;
1.208 nicm 2118: ttyctx.ptr2 = (void *)flags;
1.50 nicm 2119: ttyctx.num = len;
2120:
2121: tty_write(tty_cmd_setselection, &ttyctx);
1.47 nicm 2122: }
2123:
1.107 nicm 2124: /* Write unmodified string. */
1.47 nicm 2125: void
1.209 nicm 2126: screen_write_rawstring(struct screen_write_ctx *ctx, u_char *str, u_int len,
2127: int allow_invisible_panes)
1.47 nicm 2128: {
1.87 nicm 2129: struct tty_ctx ttyctx;
1.47 nicm 2130:
1.163 nicm 2131: screen_write_initctx(ctx, &ttyctx, 0);
1.47 nicm 2132: ttyctx.ptr = str;
2133: ttyctx.num = len;
1.209 nicm 2134: ttyctx.allow_invisible_panes = allow_invisible_panes;
1.47 nicm 2135:
2136: tty_write(tty_cmd_rawstring, &ttyctx);
1.178 nicm 2137: }
2138:
2139: /* Turn alternate screen on. */
2140: void
2141: screen_write_alternateon(struct screen_write_ctx *ctx, struct grid_cell *gc,
2142: int cursor)
2143: {
2144: struct tty_ctx ttyctx;
2145: struct window_pane *wp = ctx->wp;
2146:
2147: if (wp != NULL && !options_get_number(wp->options, "alternate-screen"))
2148: return;
1.192 nicm 2149:
2150: screen_write_collect_flush(ctx, 0, __func__);
1.178 nicm 2151: screen_alternate_on(ctx->s, gc, cursor);
2152:
1.211 nicm 2153: screen_write_initctx(ctx, &ttyctx, 1);
2154: if (ttyctx.redraw_cb != NULL)
1.210 nicm 2155: ttyctx.redraw_cb(&ttyctx);
1.178 nicm 2156: }
2157:
2158: /* Turn alternate screen off. */
2159: void
2160: screen_write_alternateoff(struct screen_write_ctx *ctx, struct grid_cell *gc,
2161: int cursor)
2162: {
2163: struct tty_ctx ttyctx;
2164: struct window_pane *wp = ctx->wp;
2165:
2166: if (wp != NULL && !options_get_number(wp->options, "alternate-screen"))
2167: return;
1.192 nicm 2168:
2169: screen_write_collect_flush(ctx, 0, __func__);
1.178 nicm 2170: screen_alternate_off(ctx->s, gc, cursor);
2171:
1.211 nicm 2172: screen_write_initctx(ctx, &ttyctx, 1);
2173: if (ttyctx.redraw_cb != NULL)
1.210 nicm 2174: ttyctx.redraw_cb(&ttyctx);
1.1 nicm 2175: }
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