Annotation of src/usr.bin/tmux/screen-write.c, Revision 1.194
1.194 ! nicm 1: /* $OpenBSD: screen-write.c,v 1.193 2021/01/29 09:48:43 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 *,
37: const struct utf8_data *, 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;
134:
135: if (c->session->curw->window != wp->window)
136: return (0);
137: if (wp->layout_cell == NULL)
138: return (0);
139:
140: if (wp->flags & (PANE_REDRAW|PANE_DROP))
141: return (-1);
142: if (c->flags & CLIENT_REDRAWPANES) {
143: /*
144: * Redraw is already deferred to redraw another pane - redraw
145: * this one also when that happens.
146: */
1.193 nicm 147: log_debug("%s: adding %%%u to deferred redraw", __func__,
148: wp->id);
1.178 nicm 149: wp->flags |= PANE_REDRAW;
150: return (-1);
151: }
152:
153: ttyctx->bigger = tty_window_offset(&c->tty, &ttyctx->wox, &ttyctx->woy,
154: &ttyctx->wsx, &ttyctx->wsy);
155:
156: ttyctx->xoff = ttyctx->rxoff = wp->xoff;
157: ttyctx->yoff = ttyctx->ryoff = wp->yoff;
158:
159: if (status_at_line(c) == 0)
160: ttyctx->yoff += status_line_size(c);
161:
162: return (1);
163: }
164:
1.163 nicm 165: /* Set up context for TTY command. */
166: static void
167: screen_write_initctx(struct screen_write_ctx *ctx, struct tty_ctx *ttyctx,
168: int sync)
169: {
170: struct screen *s = ctx->s;
171:
172: memset(ttyctx, 0, sizeof *ttyctx);
173:
1.178 nicm 174: if (ctx->wp != NULL) {
175: tty_default_colours(&ttyctx->defaults, ctx->wp);
176: ttyctx->palette = ctx->wp->palette;
177: } else {
178: memcpy(&ttyctx->defaults, &grid_default_cell,
179: sizeof ttyctx->defaults);
180: ttyctx->palette = NULL;
181: }
1.177 nicm 182:
1.178 nicm 183: ttyctx->s = s;
1.177 nicm 184: ttyctx->sx = screen_size_x(s);
185: ttyctx->sy = screen_size_y(s);
1.163 nicm 186:
187: ttyctx->ocx = s->cx;
188: ttyctx->ocy = s->cy;
189: ttyctx->orlower = s->rlower;
190: ttyctx->orupper = s->rupper;
191:
1.178 nicm 192: if (ctx->init_ctx_cb != NULL)
193: ctx->init_ctx_cb(ctx, ttyctx);
194: else {
195: ttyctx->redraw_cb = screen_write_redraw_cb;
196: if (ctx->wp == NULL)
197: ttyctx->set_client_cb = NULL;
198: else
199: ttyctx->set_client_cb = screen_write_set_client_cb;
200: ttyctx->arg = ctx->wp;
201: }
202:
1.174 nicm 203: if (ctx->wp != NULL &&
1.180 nicm 204: (~ctx->flags & SCREEN_WRITE_SYNC) &&
1.174 nicm 205: (sync || ctx->wp != ctx->wp->window->active)) {
1.163 nicm 206: tty_write(tty_cmd_syncstart, ttyctx);
1.180 nicm 207: ctx->flags |= SCREEN_WRITE_SYNC;
1.163 nicm 208: }
209: }
210:
1.170 nicm 211: /* Make write list. */
212: void
213: screen_write_make_list(struct screen *s)
214: {
215: u_int y;
216:
217: s->write_list = xcalloc(screen_size_y(s), sizeof *s->write_list);
218: for (y = 0; y < screen_size_y(s); y++)
219: TAILQ_INIT(&s->write_list[y].items);
220: }
221:
222: /* Free write list. */
223: void
224: screen_write_free_list(struct screen *s)
225: {
226: u_int y;
227:
228: for (y = 0; y < screen_size_y(s); y++)
229: free(s->write_list[y].data);
230: free(s->write_list);
231: }
232:
1.178 nicm 233: /* Set up for writing. */
234: static void
235: screen_write_init(struct screen_write_ctx *ctx, struct screen *s)
1.1 nicm 236: {
1.109 nicm 237: memset(ctx, 0, sizeof *ctx);
1.92 nicm 238:
1.178 nicm 239: ctx->s = s;
1.92 nicm 240:
1.170 nicm 241: if (ctx->s->write_list == NULL)
242: screen_write_make_list(ctx->s);
1.193 nicm 243: ctx->item = screen_write_get_citem();
1.92 nicm 244:
1.122 nicm 245: ctx->scrolled = 0;
246: ctx->bg = 8;
1.178 nicm 247: }
248:
249: /* Initialize writing with a pane. */
250: void
251: screen_write_start_pane(struct screen_write_ctx *ctx, struct window_pane *wp,
252: struct screen *s)
253: {
254: if (s == NULL)
255: s = wp->screen;
256: screen_write_init(ctx, s);
257: ctx->wp = wp;
258:
259: if (log_get_level() != 0) {
260: log_debug("%s: size %ux%u, pane %%%u (at %u,%u)",
261: __func__, screen_size_x(ctx->s), screen_size_y(ctx->s),
262: wp->id, wp->xoff, wp->yoff);
263: }
264: }
265:
266: /* Initialize writing with a callback. */
267: void
268: screen_write_start_callback(struct screen_write_ctx *ctx, struct screen *s,
269: screen_write_init_ctx_cb cb, void *arg)
270: {
271: screen_write_init(ctx, s);
272:
273: ctx->init_ctx_cb = cb;
274: ctx->arg = arg;
275:
276: if (log_get_level() != 0) {
277: log_debug("%s: size %ux%u, with callback", __func__,
278: screen_size_x(ctx->s), screen_size_y(ctx->s));
279: }
280: }
281:
282: /* Initialize writing. */
283: void
284: screen_write_start(struct screen_write_ctx *ctx, struct screen *s)
285: {
286: screen_write_init(ctx, s);
1.122 nicm 287:
1.158 nicm 288: if (log_get_level() != 0) {
1.178 nicm 289: log_debug("%s: size %ux%u, no pane", __func__,
290: screen_size_x(ctx->s), screen_size_y(ctx->s));
1.139 nicm 291: }
1.1 nicm 292: }
293:
294: /* Finish writing. */
295: void
1.92 nicm 296: screen_write_stop(struct screen_write_ctx *ctx)
297: {
1.109 nicm 298: screen_write_collect_end(ctx);
1.164 nicm 299: screen_write_collect_flush(ctx, 0, __func__);
1.92 nicm 300:
1.193 nicm 301: screen_write_free_citem(ctx->item);
1.52 nicm 302: }
303:
304: /* Reset screen state. */
305: void
306: screen_write_reset(struct screen_write_ctx *ctx)
307: {
1.61 nicm 308: struct screen *s = ctx->s;
1.52 nicm 309:
1.61 nicm 310: screen_reset_tabs(s);
311: screen_write_scrollregion(ctx, 0, screen_size_y(s) - 1);
1.63 nicm 312:
1.141 nicm 313: s->mode = MODE_CURSOR | MODE_WRAP;
1.52 nicm 314:
1.99 nicm 315: screen_write_clearscreen(ctx, 8);
1.144 nicm 316: screen_write_set_cursor(ctx, 0, 0);
1.1 nicm 317: }
318:
319: /* Write character. */
320: void
1.86 nicm 321: screen_write_putc(struct screen_write_ctx *ctx, const struct grid_cell *gcp,
1.69 nicm 322: u_char ch)
1.1 nicm 323: {
1.86 nicm 324: struct grid_cell gc;
325:
326: memcpy(&gc, gcp, sizeof gc);
327:
328: utf8_set(&gc.data, ch);
329: screen_write_cell(ctx, &gc);
1.1 nicm 330: }
331:
1.2 nicm 332: /* Calculate string length. */
1.71 nicm 333: size_t
1.75 nicm 334: screen_write_strlen(const char *fmt, ...)
1.2 nicm 335: {
1.36 nicm 336: va_list ap;
337: char *msg;
1.76 nicm 338: struct utf8_data ud;
1.36 nicm 339: u_char *ptr;
340: size_t left, size = 0;
1.79 nicm 341: enum utf8_state more;
1.2 nicm 342:
343: va_start(ap, fmt);
344: xvasprintf(&msg, fmt, ap);
345: va_end(ap);
346:
347: ptr = msg;
348: while (*ptr != '\0') {
1.79 nicm 349: if (*ptr > 0x7f && utf8_open(&ud, *ptr) == UTF8_MORE) {
1.36 nicm 350: ptr++;
1.2 nicm 351:
352: left = strlen(ptr);
1.77 nicm 353: if (left < (size_t)ud.size - 1)
1.36 nicm 354: break;
1.79 nicm 355: while ((more = utf8_append(&ud, *ptr)) == UTF8_MORE)
1.2 nicm 356: ptr++;
1.36 nicm 357: ptr++;
358:
1.79 nicm 359: if (more == UTF8_DONE)
1.78 nicm 360: size += ud.width;
1.2 nicm 361: } else {
1.75 nicm 362: if (*ptr > 0x1f && *ptr < 0x7f)
363: size++;
1.2 nicm 364: ptr++;
365: }
1.7 ray 366: }
1.2 nicm 367:
1.56 nicm 368: free(msg);
1.2 nicm 369: return (size);
370: }
371:
1.179 nicm 372: /* Write string wrapped over lines. */
373: int
374: screen_write_text(struct screen_write_ctx *ctx, u_int cx, u_int width,
375: u_int lines, int more, const struct grid_cell *gcp, const char *fmt, ...)
376: {
377: struct screen *s = ctx->s;
378: va_list ap;
379: char *tmp;
380: u_int cy = s->cy, i, end, next, idx = 0, at, left;
381: struct utf8_data *text;
382: struct grid_cell gc;
383:
384: memcpy(&gc, gcp, sizeof gc);
385:
386: va_start(ap, fmt);
387: xvasprintf(&tmp, fmt, ap);
388: va_end(ap);
389:
390: text = utf8_fromcstr(tmp);
391: free(tmp);
392:
393: left = (cx + width) - s->cx;
394: for (;;) {
395: /* Find the end of what can fit on the line. */
396: at = 0;
397: for (end = idx; text[end].size != 0; end++) {
398: if (text[end].size == 1 && text[end].data[0] == '\n')
399: break;
400: if (at + text[end].width > left)
401: break;
402: at += text[end].width;
403: }
404:
405: /*
406: * If we're on a space, that's the end. If not, walk back to
407: * try and find one.
408: */
409: if (text[end].size == 0)
410: next = end;
411: else if (text[end].size == 1 && text[end].data[0] == '\n')
412: next = end + 1;
413: else if (text[end].size == 1 && text[end].data[0] == ' ')
414: next = end + 1;
415: else {
416: for (i = end; i > idx; i--) {
417: if (text[i].size == 1 && text[i].data[0] == ' ')
418: break;
419: }
420: if (i != idx) {
421: next = i + 1;
422: end = i;
423: } else
424: next = end;
425: }
426:
427: /* Print the line. */
428: for (i = idx; i < end; i++) {
429: utf8_copy(&gc.data, &text[i]);
430: screen_write_cell(ctx, &gc);
431: }
432:
433: /* If at the bottom, stop. */
434: idx = next;
435: if (s->cy == cy + lines - 1 || text[idx].size == 0)
436: break;
437:
438: screen_write_cursormove(ctx, cx, s->cy + 1, 0);
439: left = width;
440: }
441:
442: /*
443: * Fail if on the last line and there is more to come or at the end, or
444: * if the text was not entirely consumed.
445: */
446: if ((s->cy == cy + lines - 1 && (!more || s->cx == cx + width)) ||
447: text[idx].size != 0) {
448: free(text);
449: return (0);
450: }
451: free(text);
452:
453: /*
454: * If no more to come, move to the next line. Otherwise, leave on
455: * the same line (except if at the end).
456: */
457: if (!more || s->cx == cx + width)
458: screen_write_cursormove(ctx, cx, s->cy + 1, 0);
459: return (1);
460: }
461:
462: /* Write simple string (no maximum length). */
1.71 nicm 463: void
1.86 nicm 464: screen_write_puts(struct screen_write_ctx *ctx, const struct grid_cell *gcp,
1.71 nicm 465: const char *fmt, ...)
1.1 nicm 466: {
467: va_list ap;
468:
469: va_start(ap, fmt);
1.86 nicm 470: screen_write_vnputs(ctx, -1, gcp, fmt, ap);
1.2 nicm 471: va_end(ap);
472: }
473:
474: /* Write string with length limit (-1 for unlimited). */
1.71 nicm 475: void
476: screen_write_nputs(struct screen_write_ctx *ctx, ssize_t maxlen,
1.86 nicm 477: const struct grid_cell *gcp, const char *fmt, ...)
1.2 nicm 478: {
479: va_list ap;
480:
481: va_start(ap, fmt);
1.86 nicm 482: screen_write_vnputs(ctx, maxlen, gcp, fmt, ap);
1.2 nicm 483: va_end(ap);
484: }
485:
486: void
1.3 nicm 487: screen_write_vnputs(struct screen_write_ctx *ctx, ssize_t maxlen,
1.86 nicm 488: const struct grid_cell *gcp, const char *fmt, va_list ap)
1.2 nicm 489: {
1.86 nicm 490: struct grid_cell gc;
491: struct utf8_data *ud = &gc.data;
1.36 nicm 492: char *msg;
493: u_char *ptr;
494: size_t left, size = 0;
1.79 nicm 495: enum utf8_state more;
1.2 nicm 496:
1.86 nicm 497: memcpy(&gc, gcp, sizeof gc);
1.1 nicm 498: xvasprintf(&msg, fmt, ap);
499:
1.2 nicm 500: ptr = msg;
501: while (*ptr != '\0') {
1.86 nicm 502: if (*ptr > 0x7f && utf8_open(ud, *ptr) == UTF8_MORE) {
1.36 nicm 503: ptr++;
1.2 nicm 504:
505: left = strlen(ptr);
1.86 nicm 506: if (left < (size_t)ud->size - 1)
1.36 nicm 507: break;
1.86 nicm 508: while ((more = utf8_append(ud, *ptr)) == UTF8_MORE)
1.2 nicm 509: ptr++;
1.36 nicm 510: ptr++;
1.7 ray 511:
1.86 nicm 512: if (more != UTF8_DONE)
513: continue;
514: if (maxlen > 0 && size + ud->width > (size_t)maxlen) {
515: while (size < (size_t)maxlen) {
516: screen_write_putc(ctx, &gc, ' ');
517: size++;
1.2 nicm 518: }
1.86 nicm 519: break;
1.2 nicm 520: }
1.86 nicm 521: size += ud->width;
522: screen_write_cell(ctx, &gc);
1.2 nicm 523: } else {
1.86 nicm 524: if (maxlen > 0 && size + 1 > (size_t)maxlen)
1.2 nicm 525: break;
526:
1.57 nicm 527: if (*ptr == '\001')
1.86 nicm 528: gc.attr ^= GRID_ATTR_CHARSET;
1.187 nicm 529: else if (*ptr == '\n') {
530: screen_write_linefeed(ctx, 0, 8);
531: screen_write_carriagereturn(ctx);
532: } else if (*ptr > 0x1f && *ptr < 0x7f) {
1.57 nicm 533: size++;
1.86 nicm 534: screen_write_putc(ctx, &gc, *ptr);
1.75 nicm 535: }
1.24 nicm 536: ptr++;
537: }
538: }
539:
1.56 nicm 540: free(msg);
1.1 nicm 541: }
542:
1.132 nicm 543: /*
1.176 nicm 544: * Copy from another screen but without the selection stuff. Assumes the target
545: * region is already big enough.
1.132 nicm 546: */
547: void
548: screen_write_fast_copy(struct screen_write_ctx *ctx, struct screen *src,
549: u_int px, u_int py, u_int nx, u_int ny)
550: {
551: struct screen *s = ctx->s;
552: struct grid *gd = src->grid;
553: struct grid_cell gc;
554: u_int xx, yy, cx, cy;
1.96 nicm 555:
1.132 nicm 556: if (nx == 0 || ny == 0)
557: return;
558:
559: cy = s->cy;
560: for (yy = py; yy < py + ny; yy++) {
1.134 nicm 561: if (yy >= gd->hsize + gd->sy)
562: break;
1.132 nicm 563: cx = s->cx;
564: for (xx = px; xx < px + nx; xx++) {
1.137 nicm 565: if (xx >= grid_get_line(gd, yy)->cellsize)
1.132 nicm 566: break;
567: grid_get_cell(gd, xx, yy, &gc);
1.135 nicm 568: if (xx + gc.data.width > px + nx)
569: break;
1.150 nicm 570: grid_view_set_cell(ctx->s->grid, cx, cy, &gc);
1.132 nicm 571: cx++;
572: }
1.1 nicm 573: cy++;
1.125 nicm 574: }
575: }
576:
1.129 nicm 577: /* Draw a horizontal line on screen. */
1.125 nicm 578: void
1.129 nicm 579: screen_write_hline(struct screen_write_ctx *ctx, u_int nx, int left, int right)
1.125 nicm 580: {
581: struct screen *s = ctx->s;
582: struct grid_cell gc;
583: u_int cx, cy, i;
584:
585: cx = s->cx;
586: cy = s->cy;
587:
588: memcpy(&gc, &grid_default_cell, sizeof gc);
589: gc.attr |= GRID_ATTR_CHARSET;
590:
591: screen_write_putc(ctx, &gc, left ? 't' : 'q');
592: for (i = 1; i < nx - 1; i++)
593: screen_write_putc(ctx, &gc, 'q');
594: screen_write_putc(ctx, &gc, right ? 'u' : 'q');
1.129 nicm 595:
1.144 nicm 596: screen_write_set_cursor(ctx, cx, cy);
1.129 nicm 597: }
598:
599: /* Draw a horizontal line on screen. */
600: void
1.130 nicm 601: screen_write_vline(struct screen_write_ctx *ctx, u_int ny, int top, int bottom)
1.129 nicm 602: {
603: struct screen *s = ctx->s;
604: struct grid_cell gc;
605: u_int cx, cy, i;
606:
607: cx = s->cx;
608: cy = s->cy;
609:
610: memcpy(&gc, &grid_default_cell, sizeof gc);
611: gc.attr |= GRID_ATTR_CHARSET;
612:
613: screen_write_putc(ctx, &gc, top ? 'w' : 'x');
614: for (i = 1; i < ny - 1; i++) {
1.144 nicm 615: screen_write_set_cursor(ctx, cx, cy + i);
1.129 nicm 616: screen_write_putc(ctx, &gc, 'x');
617: }
1.144 nicm 618: screen_write_set_cursor(ctx, cx, cy + ny - 1);
1.129 nicm 619: screen_write_putc(ctx, &gc, bottom ? 'v' : 'x');
1.152 nicm 620:
621: screen_write_set_cursor(ctx, cx, cy);
622: }
623:
624: /* Draw a menu on screen. */
625: void
1.161 nicm 626: screen_write_menu(struct screen_write_ctx *ctx, struct menu *menu,
627: int choice, const struct grid_cell *choice_gc)
1.152 nicm 628: {
629: struct screen *s = ctx->s;
1.161 nicm 630: struct grid_cell default_gc;
631: const struct grid_cell *gc = &default_gc;
1.152 nicm 632: u_int cx, cy, i, j;
1.153 nicm 633: const char *name;
1.152 nicm 634:
635: cx = s->cx;
636: cy = s->cy;
637:
1.161 nicm 638: memcpy(&default_gc, &grid_default_cell, sizeof default_gc);
1.152 nicm 639:
640: screen_write_box(ctx, menu->width + 4, menu->count + 2);
641: screen_write_cursormove(ctx, cx + 2, cy, 0);
1.161 nicm 642: format_draw(ctx, &default_gc, menu->width, menu->title, NULL);
1.152 nicm 643:
644: for (i = 0; i < menu->count; i++) {
1.153 nicm 645: name = menu->items[i].name;
646: if (name == NULL) {
1.152 nicm 647: screen_write_cursormove(ctx, cx, cy + 1 + i, 0);
648: screen_write_hline(ctx, menu->width + 4, 1, 1);
649: } else {
1.153 nicm 650: if (choice >= 0 && i == (u_int)choice && *name != '-')
1.161 nicm 651: gc = choice_gc;
1.152 nicm 652: screen_write_cursormove(ctx, cx + 2, cy + 1 + i, 0);
653: for (j = 0; j < menu->width; j++)
1.161 nicm 654: screen_write_putc(ctx, gc, ' ');
1.152 nicm 655: screen_write_cursormove(ctx, cx + 2, cy + 1 + i, 0);
1.153 nicm 656: if (*name == '-') {
657: name++;
1.161 nicm 658: default_gc.attr |= GRID_ATTR_DIM;
659: format_draw(ctx, gc, menu->width, name, NULL);
660: default_gc.attr &= ~GRID_ATTR_DIM;
1.153 nicm 661: } else
1.161 nicm 662: format_draw(ctx, gc, menu->width, name, NULL);
663: gc = &default_gc;
1.152 nicm 664: }
665: }
1.125 nicm 666:
1.144 nicm 667: screen_write_set_cursor(ctx, cx, cy);
1.125 nicm 668: }
669:
670: /* Draw a box on screen. */
671: void
672: screen_write_box(struct screen_write_ctx *ctx, u_int nx, u_int ny)
673: {
674: struct screen *s = ctx->s;
675: struct grid_cell gc;
676: u_int cx, cy, i;
677:
678: cx = s->cx;
679: cy = s->cy;
680:
681: memcpy(&gc, &grid_default_cell, sizeof gc);
682: gc.attr |= GRID_ATTR_CHARSET;
683:
684: screen_write_putc(ctx, &gc, 'l');
685: for (i = 1; i < nx - 1; i++)
686: screen_write_putc(ctx, &gc, 'q');
687: screen_write_putc(ctx, &gc, 'k');
688:
1.144 nicm 689: screen_write_set_cursor(ctx, cx, cy + ny - 1);
1.125 nicm 690: screen_write_putc(ctx, &gc, 'm');
691: for (i = 1; i < nx - 1; i++)
692: screen_write_putc(ctx, &gc, 'q');
693: screen_write_putc(ctx, &gc, 'j');
694:
695: for (i = 1; i < ny - 1; i++) {
1.144 nicm 696: screen_write_set_cursor(ctx, cx, cy + i);
1.125 nicm 697: screen_write_putc(ctx, &gc, 'x');
698: }
699: for (i = 1; i < ny - 1; i++) {
1.144 nicm 700: screen_write_set_cursor(ctx, cx + nx - 1, cy + i);
1.125 nicm 701: screen_write_putc(ctx, &gc, 'x');
702: }
703:
1.144 nicm 704: screen_write_set_cursor(ctx, cx, cy);
1.125 nicm 705: }
706:
1.132 nicm 707: /*
708: * Write a preview version of a window. Assumes target area is big enough and
709: * already cleared.
710: */
1.125 nicm 711: void
712: screen_write_preview(struct screen_write_ctx *ctx, struct screen *src, u_int nx,
713: u_int ny)
714: {
715: struct screen *s = ctx->s;
716: struct grid_cell gc;
717: u_int cx, cy, px, py;
718:
719: cx = s->cx;
720: cy = s->cy;
721:
722: /*
723: * If the cursor is on, pick the area around the cursor, otherwise use
724: * the top left.
725: */
726: if (src->mode & MODE_CURSOR) {
727: px = src->cx;
728: if (px < nx / 3)
729: px = 0;
730: else
731: px = px - nx / 3;
732: if (px + nx > screen_size_x(src)) {
733: if (nx > screen_size_x(src))
734: px = 0;
735: else
736: px = screen_size_x(src) - nx;
737: }
738: py = src->cy;
739: if (py < ny / 3)
740: py = 0;
741: else
742: py = py - ny / 3;
743: if (py + ny > screen_size_y(src)) {
744: if (ny > screen_size_y(src))
745: py = 0;
746: else
747: py = screen_size_y(src) - ny;
748: }
749: } else {
750: px = 0;
751: py = 0;
752: }
753:
1.132 nicm 754: screen_write_fast_copy(ctx, src, px, src->grid->hsize + py, nx, ny);
1.125 nicm 755:
756: if (src->mode & MODE_CURSOR) {
757: grid_view_get_cell(src->grid, src->cx, src->cy, &gc);
758: gc.attr |= GRID_ATTR_REVERSE;
1.144 nicm 759: screen_write_set_cursor(ctx, cx + (src->cx - px),
1.125 nicm 760: cy + (src->cy - py));
761: screen_write_cell(ctx, &gc);
1.1 nicm 762: }
763: }
764:
1.61 nicm 765: /* Set a mode. */
766: void
767: screen_write_mode_set(struct screen_write_ctx *ctx, int mode)
768: {
769: struct screen *s = ctx->s;
770:
771: s->mode |= mode;
1.194 ! nicm 772:
! 773: if (log_get_level() != 0)
! 774: log_debug("%s: %s", __func__, screen_mode_to_string(mode));
1.61 nicm 775: }
776:
777: /* Clear a mode. */
778: void
779: screen_write_mode_clear(struct screen_write_ctx *ctx, int mode)
780: {
781: struct screen *s = ctx->s;
782:
783: s->mode &= ~mode;
1.194 ! nicm 784:
! 785: if (log_get_level() != 0)
! 786: log_debug("%s: %s", __func__, screen_mode_to_string(mode));
1.61 nicm 787: }
788:
1.1 nicm 789: /* Cursor up by ny. */
790: void
791: screen_write_cursorup(struct screen_write_ctx *ctx, u_int ny)
792: {
793: struct screen *s = ctx->s;
1.139 nicm 794: u_int cx = s->cx, cy = s->cy;
1.1 nicm 795:
796: if (ny == 0)
797: ny = 1;
798:
1.139 nicm 799: if (cy < s->rupper) {
1.12 nicm 800: /* Above region. */
1.139 nicm 801: if (ny > cy)
802: ny = cy;
1.12 nicm 803: } else {
804: /* Below region. */
1.139 nicm 805: if (ny > cy - s->rupper)
806: ny = cy - s->rupper;
1.12 nicm 807: }
1.139 nicm 808: if (cx == screen_size_x(s))
809: cx--;
810:
811: cy -= ny;
1.1 nicm 812:
1.139 nicm 813: screen_write_set_cursor(ctx, cx, cy);
1.1 nicm 814: }
815:
816: /* Cursor down by ny. */
817: void
818: screen_write_cursordown(struct screen_write_ctx *ctx, u_int ny)
819: {
820: struct screen *s = ctx->s;
1.139 nicm 821: u_int cx = s->cx, cy = s->cy;
1.1 nicm 822:
823: if (ny == 0)
824: ny = 1;
825:
1.139 nicm 826: if (cy > s->rlower) {
1.12 nicm 827: /* Below region. */
1.139 nicm 828: if (ny > screen_size_y(s) - 1 - cy)
829: ny = screen_size_y(s) - 1 - cy;
1.12 nicm 830: } else {
831: /* Above region. */
1.139 nicm 832: if (ny > s->rlower - cy)
833: ny = s->rlower - cy;
1.12 nicm 834: }
1.139 nicm 835: if (cx == screen_size_x(s))
836: cx--;
837: else if (ny == 0)
1.1 nicm 838: return;
839:
1.139 nicm 840: cy += ny;
841:
842: screen_write_set_cursor(ctx, cx, cy);
1.1 nicm 843: }
844:
1.101 nicm 845: /* Cursor right by nx. */
1.1 nicm 846: void
847: screen_write_cursorright(struct screen_write_ctx *ctx, u_int nx)
848: {
849: struct screen *s = ctx->s;
1.139 nicm 850: u_int cx = s->cx, cy = s->cy;
1.1 nicm 851:
852: if (nx == 0)
853: nx = 1;
854:
1.139 nicm 855: if (nx > screen_size_x(s) - 1 - cx)
856: nx = screen_size_x(s) - 1 - cx;
1.1 nicm 857: if (nx == 0)
858: return;
859:
1.139 nicm 860: cx += nx;
861:
862: screen_write_set_cursor(ctx, cx, cy);
1.1 nicm 863: }
864:
865: /* Cursor left by nx. */
866: void
867: screen_write_cursorleft(struct screen_write_ctx *ctx, u_int nx)
868: {
869: struct screen *s = ctx->s;
1.139 nicm 870: u_int cx = s->cx, cy = s->cy;
1.1 nicm 871:
872: if (nx == 0)
873: nx = 1;
874:
1.139 nicm 875: if (nx > cx)
876: nx = cx;
1.1 nicm 877: if (nx == 0)
878: return;
879:
1.139 nicm 880: cx -= nx;
881:
882: screen_write_set_cursor(ctx, cx, cy);
1.5 nicm 883: }
884:
1.29 nicm 885: /* Backspace; cursor left unless at start of wrapped line when can move up. */
886: void
887: screen_write_backspace(struct screen_write_ctx *ctx)
888: {
889: struct screen *s = ctx->s;
890: struct grid_line *gl;
1.139 nicm 891: u_int cx = s->cx, cy = s->cy;
1.29 nicm 892:
1.139 nicm 893: if (cx == 0) {
894: if (cy == 0)
1.29 nicm 895: return;
1.139 nicm 896: gl = grid_get_line(s->grid, s->grid->hsize + cy - 1);
1.29 nicm 897: if (gl->flags & GRID_LINE_WRAPPED) {
1.139 nicm 898: cy--;
899: cx = screen_size_x(s) - 1;
1.29 nicm 900: }
901: } else
1.139 nicm 902: cx--;
903:
904: screen_write_set_cursor(ctx, cx, cy);
1.29 nicm 905: }
906:
1.5 nicm 907: /* VT100 alignment test. */
908: void
909: screen_write_alignmenttest(struct screen_write_ctx *ctx)
910: {
911: struct screen *s = ctx->s;
1.17 nicm 912: struct tty_ctx ttyctx;
1.5 nicm 913: struct grid_cell gc;
914: u_int xx, yy;
915:
916: memcpy(&gc, &grid_default_cell, sizeof gc);
1.77 nicm 917: utf8_set(&gc.data, 'E');
1.7 ray 918:
1.5 nicm 919: for (yy = 0; yy < screen_size_y(s); yy++) {
920: for (xx = 0; xx < screen_size_x(s); xx++)
921: grid_view_set_cell(s->grid, xx, yy, &gc);
922: }
1.7 ray 923:
1.139 nicm 924: screen_write_set_cursor(ctx, 0, 0);
1.5 nicm 925:
926: s->rupper = 0;
927: s->rlower = screen_size_y(s) - 1;
1.143 nicm 928:
1.163 nicm 929: screen_write_initctx(ctx, &ttyctx, 1);
1.5 nicm 930:
1.109 nicm 931: screen_write_collect_clear(ctx, 0, screen_size_y(s) - 1);
1.17 nicm 932: tty_write(tty_cmd_alignmenttest, &ttyctx);
1.1 nicm 933: }
934:
935: /* Insert nx characters. */
936: void
1.99 nicm 937: screen_write_insertcharacter(struct screen_write_ctx *ctx, u_int nx, u_int bg)
1.1 nicm 938: {
939: struct screen *s = ctx->s;
1.17 nicm 940: struct tty_ctx ttyctx;
1.1 nicm 941:
942: if (nx == 0)
943: nx = 1;
944:
1.9 nicm 945: if (nx > screen_size_x(s) - s->cx)
946: nx = screen_size_x(s) - s->cx;
1.1 nicm 947: if (nx == 0)
948: return;
949:
1.107 nicm 950: if (s->cx > screen_size_x(s) - 1)
951: return;
952:
1.163 nicm 953: screen_write_initctx(ctx, &ttyctx, 0);
1.107 nicm 954: ttyctx.bg = bg;
1.1 nicm 955:
1.107 nicm 956: grid_view_insert_cells(s->grid, s->cx, s->cy, nx, bg);
1.1 nicm 957:
1.164 nicm 958: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 959: ttyctx.num = nx;
960: tty_write(tty_cmd_insertcharacter, &ttyctx);
1.1 nicm 961: }
962:
963: /* Delete nx characters. */
964: void
1.99 nicm 965: screen_write_deletecharacter(struct screen_write_ctx *ctx, u_int nx, u_int bg)
1.1 nicm 966: {
967: struct screen *s = ctx->s;
1.17 nicm 968: struct tty_ctx ttyctx;
1.1 nicm 969:
970: if (nx == 0)
971: nx = 1;
972:
1.9 nicm 973: if (nx > screen_size_x(s) - s->cx)
974: nx = screen_size_x(s) - s->cx;
1.1 nicm 975: if (nx == 0)
976: return;
977:
1.107 nicm 978: if (s->cx > screen_size_x(s) - 1)
979: return;
980:
1.163 nicm 981: screen_write_initctx(ctx, &ttyctx, 0);
1.107 nicm 982: ttyctx.bg = bg;
1.1 nicm 983:
1.107 nicm 984: grid_view_delete_cells(s->grid, s->cx, s->cy, nx, bg);
1.1 nicm 985:
1.164 nicm 986: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 987: ttyctx.num = nx;
988: tty_write(tty_cmd_deletecharacter, &ttyctx);
1.59 nicm 989: }
990:
991: /* Clear nx characters. */
992: void
1.121 nicm 993: screen_write_clearcharacter(struct screen_write_ctx *ctx, u_int nx, u_int bg)
1.59 nicm 994: {
995: struct screen *s = ctx->s;
996: struct tty_ctx ttyctx;
997:
998: if (nx == 0)
999: nx = 1;
1000:
1001: if (nx > screen_size_x(s) - s->cx)
1002: nx = screen_size_x(s) - s->cx;
1003: if (nx == 0)
1004: return;
1005:
1.107 nicm 1006: if (s->cx > screen_size_x(s) - 1)
1007: return;
1008:
1.163 nicm 1009: screen_write_initctx(ctx, &ttyctx, 0);
1.121 nicm 1010: ttyctx.bg = bg;
1.59 nicm 1011:
1.124 nicm 1012: grid_view_clear(s->grid, s->cx, s->cy, nx, 1, bg);
1.59 nicm 1013:
1.164 nicm 1014: screen_write_collect_flush(ctx, 0, __func__);
1.59 nicm 1015: ttyctx.num = nx;
1016: tty_write(tty_cmd_clearcharacter, &ttyctx);
1.1 nicm 1017: }
1018:
1019: /* Insert ny lines. */
1020: void
1.99 nicm 1021: screen_write_insertline(struct screen_write_ctx *ctx, u_int ny, u_int bg)
1.1 nicm 1022: {
1023: struct screen *s = ctx->s;
1.107 nicm 1024: struct grid *gd = s->grid;
1.17 nicm 1025: struct tty_ctx ttyctx;
1.1 nicm 1026:
1027: if (ny == 0)
1028: ny = 1;
1029:
1.11 nicm 1030: if (s->cy < s->rupper || s->cy > s->rlower) {
1031: if (ny > screen_size_y(s) - s->cy)
1032: ny = screen_size_y(s) - s->cy;
1033: if (ny == 0)
1034: return;
1035:
1.163 nicm 1036: screen_write_initctx(ctx, &ttyctx, 1);
1.107 nicm 1037: ttyctx.bg = bg;
1.11 nicm 1038:
1.107 nicm 1039: grid_view_insert_lines(gd, s->cy, ny, bg);
1.11 nicm 1040:
1.164 nicm 1041: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 1042: ttyctx.num = ny;
1043: tty_write(tty_cmd_insertline, &ttyctx);
1.11 nicm 1044: return;
1045: }
1046:
1047: if (ny > s->rlower + 1 - s->cy)
1048: ny = s->rlower + 1 - s->cy;
1.1 nicm 1049: if (ny == 0)
1050: return;
1.41 nicm 1051:
1.163 nicm 1052: screen_write_initctx(ctx, &ttyctx, 1);
1.107 nicm 1053: ttyctx.bg = bg;
1.1 nicm 1054:
1055: if (s->cy < s->rupper || s->cy > s->rlower)
1.107 nicm 1056: grid_view_insert_lines(gd, s->cy, ny, bg);
1057: else
1058: grid_view_insert_lines_region(gd, s->rlower, s->cy, ny, bg);
1.1 nicm 1059:
1.164 nicm 1060: screen_write_collect_flush(ctx, 0, __func__);
1061:
1.17 nicm 1062: ttyctx.num = ny;
1063: tty_write(tty_cmd_insertline, &ttyctx);
1.1 nicm 1064: }
1065:
1066: /* Delete ny lines. */
1067: void
1.99 nicm 1068: screen_write_deleteline(struct screen_write_ctx *ctx, u_int ny, u_int bg)
1.1 nicm 1069: {
1070: struct screen *s = ctx->s;
1.107 nicm 1071: struct grid *gd = s->grid;
1.17 nicm 1072: struct tty_ctx ttyctx;
1.1 nicm 1073:
1074: if (ny == 0)
1075: ny = 1;
1076:
1.11 nicm 1077: if (s->cy < s->rupper || s->cy > s->rlower) {
1078: if (ny > screen_size_y(s) - s->cy)
1079: ny = screen_size_y(s) - s->cy;
1080: if (ny == 0)
1081: return;
1082:
1.163 nicm 1083: screen_write_initctx(ctx, &ttyctx, 1);
1.107 nicm 1084: ttyctx.bg = bg;
1.11 nicm 1085:
1.107 nicm 1086: grid_view_delete_lines(gd, s->cy, ny, bg);
1.11 nicm 1087:
1.164 nicm 1088: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 1089: ttyctx.num = ny;
1090: tty_write(tty_cmd_deleteline, &ttyctx);
1.11 nicm 1091: return;
1092: }
1.41 nicm 1093:
1.11 nicm 1094: if (ny > s->rlower + 1 - s->cy)
1095: ny = s->rlower + 1 - s->cy;
1.1 nicm 1096: if (ny == 0)
1097: return;
1098:
1.163 nicm 1099: screen_write_initctx(ctx, &ttyctx, 1);
1.107 nicm 1100: ttyctx.bg = bg;
1.1 nicm 1101:
1102: if (s->cy < s->rupper || s->cy > s->rlower)
1.107 nicm 1103: grid_view_delete_lines(gd, s->cy, ny, bg);
1104: else
1105: grid_view_delete_lines_region(gd, s->rlower, s->cy, ny, bg);
1.1 nicm 1106:
1.164 nicm 1107: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 1108: ttyctx.num = ny;
1109: tty_write(tty_cmd_deleteline, &ttyctx);
1.1 nicm 1110: }
1111:
1112: /* Clear line at cursor. */
1113: void
1.99 nicm 1114: screen_write_clearline(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1115: {
1.193 nicm 1116: struct screen *s = ctx->s;
1117: struct grid_line *gl;
1118: u_int sx = screen_size_x(s);
1119: struct screen_write_citem *ci = ctx->item;
1.1 nicm 1120:
1.137 nicm 1121: gl = grid_get_line(s->grid, s->grid->hsize + s->cy);
1.140 nicm 1122: if (gl->cellsize == 0 && COLOUR_DEFAULT(bg))
1.92 nicm 1123: return;
1.1 nicm 1124:
1.99 nicm 1125: grid_view_clear(s->grid, 0, s->cy, sx, 1, bg);
1126:
1.109 nicm 1127: screen_write_collect_clear(ctx, s->cy, 1);
1.193 nicm 1128: ci->x = 0;
1129: ci->used = sx;
1130: ci->type = CLEAR;
1131: ci->bg = bg;
1132: TAILQ_INSERT_TAIL(&ctx->s->write_list[s->cy].items, ci, entry);
1133: ctx->item = screen_write_get_citem();
1.1 nicm 1134: }
1135:
1136: /* Clear to end of line from cursor. */
1137: void
1.99 nicm 1138: screen_write_clearendofline(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1139: {
1.193 nicm 1140: struct screen *s = ctx->s;
1141: struct grid_line *gl;
1142: u_int sx = screen_size_x(s);
1143: struct screen_write_citem *ci = ctx->item, *before;
1.165 nicm 1144:
1145: if (s->cx == 0) {
1146: screen_write_clearline(ctx, bg);
1147: return;
1148: }
1.1 nicm 1149:
1.137 nicm 1150: gl = grid_get_line(s->grid, s->grid->hsize + s->cy);
1.140 nicm 1151: if (s->cx > sx - 1 || (s->cx >= gl->cellsize && COLOUR_DEFAULT(bg)))
1.92 nicm 1152: return;
1.108 nicm 1153:
1.99 nicm 1154: grid_view_clear(s->grid, s->cx, s->cy, sx - s->cx, 1, bg);
1155:
1.193 nicm 1156: before = screen_write_collect_trim(ctx, s->cy, s->cx, sx - s->cx, NULL);
1.186 nicm 1157: ci->x = s->cx;
1.193 nicm 1158: ci->used = sx - s->cx;
1159: ci->type = CLEAR;
1.186 nicm 1160: ci->bg = bg;
1.193 nicm 1161: if (before == NULL)
1162: TAILQ_INSERT_TAIL(&ctx->s->write_list[s->cy].items, ci, entry);
1163: else
1164: TAILQ_INSERT_BEFORE(before, ci, entry);
1165: ctx->item = screen_write_get_citem();
1.1 nicm 1166: }
1167:
1168: /* Clear to start of line from cursor. */
1169: void
1.99 nicm 1170: screen_write_clearstartofline(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1171: {
1.165 nicm 1172: struct screen *s = ctx->s;
1.193 nicm 1173: u_int sx = screen_size_x(s);
1174: struct screen_write_citem *ci = ctx->item, *before;
1.165 nicm 1175:
1176: if (s->cx >= sx - 1) {
1177: screen_write_clearline(ctx, bg);
1178: return;
1179: }
1.1 nicm 1180:
1.109 nicm 1181: if (s->cx > sx - 1)
1.99 nicm 1182: grid_view_clear(s->grid, 0, s->cy, sx, 1, bg);
1.109 nicm 1183: else
1.99 nicm 1184: grid_view_clear(s->grid, 0, s->cy, s->cx + 1, 1, bg);
1.1 nicm 1185:
1.193 nicm 1186: before = screen_write_collect_trim(ctx, s->cy, 0, s->cx + 1, NULL);
1187: ci->x = 0;
1188: ci->used = s->cx + 1;
1189: ci->type = CLEAR;
1.186 nicm 1190: ci->bg = bg;
1.193 nicm 1191: if (before == NULL)
1192: TAILQ_INSERT_TAIL(&ctx->s->write_list[s->cy].items, ci, entry);
1193: else
1194: TAILQ_INSERT_BEFORE(before, ci, entry);
1195: ctx->item = screen_write_get_citem();
1.1 nicm 1196: }
1197:
1.101 nicm 1198: /* Move cursor to px,py. */
1.1 nicm 1199: void
1.147 nicm 1200: screen_write_cursormove(struct screen_write_ctx *ctx, int px, int py,
1201: int origin)
1.1 nicm 1202: {
1203: struct screen *s = ctx->s;
1204:
1.147 nicm 1205: if (origin && py != -1 && (s->mode & MODE_ORIGIN)) {
1.146 nicm 1206: if ((u_int)py > s->rlower - s->rupper)
1.144 nicm 1207: py = s->rlower;
1208: else
1209: py += s->rupper;
1210: }
1.145 nicm 1211:
1.146 nicm 1212: if (px != -1 && (u_int)px > screen_size_x(s) - 1)
1.145 nicm 1213: px = screen_size_x(s) - 1;
1.146 nicm 1214: if (py != -1 && (u_int)py > screen_size_y(s) - 1)
1.145 nicm 1215: py = screen_size_y(s) - 1;
1.1 nicm 1216:
1.193 nicm 1217: log_debug("%s: from %u,%u to %u,%u", __func__, s->cx, s->cy, px, py);
1.139 nicm 1218: screen_write_set_cursor(ctx, px, py);
1.1 nicm 1219: }
1220:
1.101 nicm 1221: /* Reverse index (up with scroll). */
1.1 nicm 1222: void
1.122 nicm 1223: screen_write_reverseindex(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1224: {
1225: struct screen *s = ctx->s;
1.17 nicm 1226: struct tty_ctx ttyctx;
1.1 nicm 1227:
1.165 nicm 1228: if (s->cy == s->rupper) {
1229: grid_view_scroll_region_down(s->grid, s->rupper, s->rlower, bg);
1230: screen_write_collect_flush(ctx, 0, __func__);
1231:
1232: screen_write_initctx(ctx, &ttyctx, 1);
1233: ttyctx.bg = bg;
1.1 nicm 1234:
1.165 nicm 1235: tty_write(tty_cmd_reverseindex, &ttyctx);
1236: } else if (s->cy > 0)
1.139 nicm 1237: screen_write_set_cursor(ctx, -1, s->cy - 1);
1.1 nicm 1238:
1239: }
1240:
1241: /* Set scroll region. */
1242: void
1.83 nicm 1243: screen_write_scrollregion(struct screen_write_ctx *ctx, u_int rupper,
1244: u_int rlower)
1.1 nicm 1245: {
1246: struct screen *s = ctx->s;
1247:
1248: if (rupper > screen_size_y(s) - 1)
1249: rupper = screen_size_y(s) - 1;
1250: if (rlower > screen_size_y(s) - 1)
1251: rlower = screen_size_y(s) - 1;
1.13 nicm 1252: if (rupper >= rlower) /* cannot be one line */
1.1 nicm 1253: return;
1254:
1.164 nicm 1255: screen_write_collect_flush(ctx, 0, __func__);
1.110 nicm 1256:
1.1 nicm 1257: /* Cursor moves to top-left. */
1.139 nicm 1258: screen_write_set_cursor(ctx, 0, 0);
1.1 nicm 1259:
1260: s->rupper = rupper;
1261: s->rlower = rlower;
1262: }
1263:
1.34 nicm 1264: /* Line feed. */
1.1 nicm 1265: void
1.122 nicm 1266: screen_write_linefeed(struct screen_write_ctx *ctx, int wrapped, u_int bg)
1.1 nicm 1267: {
1.20 nicm 1268: struct screen *s = ctx->s;
1.109 nicm 1269: struct grid *gd = s->grid;
1.20 nicm 1270: struct grid_line *gl;
1.1 nicm 1271:
1.137 nicm 1272: gl = grid_get_line(gd, gd->hsize + s->cy);
1.20 nicm 1273: if (wrapped)
1274: gl->flags |= GRID_LINE_WRAPPED;
1275:
1.114 nicm 1276: log_debug("%s: at %u,%u (region %u-%u)", __func__, s->cx, s->cy,
1277: s->rupper, s->rlower);
1278:
1.122 nicm 1279: if (bg != ctx->bg) {
1.164 nicm 1280: screen_write_collect_flush(ctx, 1, __func__);
1.122 nicm 1281: ctx->bg = bg;
1282: }
1283:
1.92 nicm 1284: if (s->cy == s->rlower) {
1.122 nicm 1285: grid_view_scroll_region_up(gd, s->rupper, s->rlower, bg);
1.193 nicm 1286: screen_write_collect_scroll(ctx, bg);
1.110 nicm 1287: ctx->scrolled++;
1.109 nicm 1288: } else if (s->cy < screen_size_y(s) - 1)
1.139 nicm 1289: screen_write_set_cursor(ctx, -1, s->cy + 1);
1.1 nicm 1290: }
1291:
1.110 nicm 1292: /* Scroll up. */
1293: void
1.122 nicm 1294: screen_write_scrollup(struct screen_write_ctx *ctx, u_int lines, u_int bg)
1.110 nicm 1295: {
1296: struct screen *s = ctx->s;
1297: struct grid *gd = s->grid;
1298: u_int i;
1299:
1300: if (lines == 0)
1301: lines = 1;
1302: else if (lines > s->rlower - s->rupper + 1)
1303: lines = s->rlower - s->rupper + 1;
1304:
1.122 nicm 1305: if (bg != ctx->bg) {
1.164 nicm 1306: screen_write_collect_flush(ctx, 1, __func__);
1.122 nicm 1307: ctx->bg = bg;
1308: }
1309:
1.110 nicm 1310: for (i = 0; i < lines; i++) {
1.122 nicm 1311: grid_view_scroll_region_up(gd, s->rupper, s->rlower, bg);
1.193 nicm 1312: screen_write_collect_scroll(ctx, bg);
1.110 nicm 1313: }
1314: ctx->scrolled += lines;
1.157 nicm 1315: }
1316:
1317: /* Scroll down. */
1318: void
1319: screen_write_scrolldown(struct screen_write_ctx *ctx, u_int lines, u_int bg)
1320: {
1321: struct screen *s = ctx->s;
1322: struct grid *gd = s->grid;
1323: struct tty_ctx ttyctx;
1324: u_int i;
1325:
1.163 nicm 1326: screen_write_initctx(ctx, &ttyctx, 1);
1.157 nicm 1327: ttyctx.bg = bg;
1328:
1329: if (lines == 0)
1330: lines = 1;
1331: else if (lines > s->rlower - s->rupper + 1)
1332: lines = s->rlower - s->rupper + 1;
1333:
1334: for (i = 0; i < lines; i++)
1335: grid_view_scroll_region_down(gd, s->rupper, s->rlower, bg);
1336:
1.164 nicm 1337: screen_write_collect_flush(ctx, 0, __func__);
1.157 nicm 1338: ttyctx.num = lines;
1339: tty_write(tty_cmd_scrolldown, &ttyctx);
1.110 nicm 1340: }
1341:
1.1 nicm 1342: /* Carriage return (cursor to start of line). */
1343: void
1344: screen_write_carriagereturn(struct screen_write_ctx *ctx)
1345: {
1.139 nicm 1346: screen_write_set_cursor(ctx, 0, -1);
1.1 nicm 1347: }
1348:
1349: /* Clear to end of screen from cursor. */
1350: void
1.99 nicm 1351: screen_write_clearendofscreen(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1352: {
1353: struct screen *s = ctx->s;
1.107 nicm 1354: struct grid *gd = s->grid;
1.17 nicm 1355: struct tty_ctx ttyctx;
1.92 nicm 1356: u_int sx = screen_size_x(s), sy = screen_size_y(s);
1.1 nicm 1357:
1.163 nicm 1358: screen_write_initctx(ctx, &ttyctx, 1);
1.99 nicm 1359: ttyctx.bg = bg;
1.1 nicm 1360:
1.46 nicm 1361: /* Scroll into history if it is enabled and clearing entire screen. */
1.109 nicm 1362: if (s->cx == 0 && s->cy == 0 && (gd->flags & GRID_HISTORY))
1.107 nicm 1363: grid_view_clear_history(gd, bg);
1.109 nicm 1364: else {
1365: if (s->cx <= sx - 1)
1.107 nicm 1366: grid_view_clear(gd, s->cx, s->cy, sx - s->cx, 1, bg);
1367: grid_view_clear(gd, 0, s->cy + 1, sx, sy - (s->cy + 1), bg);
1.46 nicm 1368: }
1.1 nicm 1369:
1.109 nicm 1370: screen_write_collect_clear(ctx, s->cy + 1, sy - (s->cy + 1));
1.164 nicm 1371: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 1372: tty_write(tty_cmd_clearendofscreen, &ttyctx);
1.1 nicm 1373: }
1374:
1375: /* Clear to start of screen. */
1376: void
1.105 nicm 1377: screen_write_clearstartofscreen(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1378: {
1379: struct screen *s = ctx->s;
1.17 nicm 1380: struct tty_ctx ttyctx;
1.92 nicm 1381: u_int sx = screen_size_x(s);
1.1 nicm 1382:
1.163 nicm 1383: screen_write_initctx(ctx, &ttyctx, 1);
1.105 nicm 1384: ttyctx.bg = bg;
1.1 nicm 1385:
1.109 nicm 1386: if (s->cy > 0)
1.105 nicm 1387: grid_view_clear(s->grid, 0, 0, sx, s->cy, bg);
1.109 nicm 1388: if (s->cx > sx - 1)
1.120 nicm 1389: grid_view_clear(s->grid, 0, s->cy, sx, 1, bg);
1.109 nicm 1390: else
1.120 nicm 1391: grid_view_clear(s->grid, 0, s->cy, s->cx + 1, 1, bg);
1.1 nicm 1392:
1.109 nicm 1393: screen_write_collect_clear(ctx, 0, s->cy);
1.164 nicm 1394: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 1395: tty_write(tty_cmd_clearstartofscreen, &ttyctx);
1.1 nicm 1396: }
1397:
1398: /* Clear entire screen. */
1399: void
1.99 nicm 1400: screen_write_clearscreen(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1401: {
1402: struct screen *s = ctx->s;
1.17 nicm 1403: struct tty_ctx ttyctx;
1.92 nicm 1404: u_int sx = screen_size_x(s), sy = screen_size_y(s);
1.1 nicm 1405:
1.163 nicm 1406: screen_write_initctx(ctx, &ttyctx, 1);
1.99 nicm 1407: ttyctx.bg = bg;
1.1 nicm 1408:
1.46 nicm 1409: /* Scroll into history if it is enabled. */
1410: if (s->grid->flags & GRID_HISTORY)
1.99 nicm 1411: grid_view_clear_history(s->grid, bg);
1.83 nicm 1412: else
1.99 nicm 1413: grid_view_clear(s->grid, 0, 0, sx, sy, bg);
1.1 nicm 1414:
1.109 nicm 1415: screen_write_collect_clear(ctx, 0, sy);
1.17 nicm 1416: tty_write(tty_cmd_clearscreen, &ttyctx);
1.51 nicm 1417: }
1418:
1419: /* Clear entire history. */
1420: void
1421: screen_write_clearhistory(struct screen_write_ctx *ctx)
1422: {
1.156 nicm 1423: grid_clear_history(ctx->s->grid);
1.1 nicm 1424: }
1425:
1.193 nicm 1426: /* Trim collected items. */
1427: static struct screen_write_citem *
1428: screen_write_collect_trim(struct screen_write_ctx *ctx, u_int y, u_int x,
1429: u_int used, int *wrapped)
1430: {
1431: struct screen_write_cline *cl = &ctx->s->write_list[y];
1432: struct screen_write_citem *ci, *ci2, *tmp, *before = NULL;
1433: u_int sx = x, ex = x + used - 1;
1434: u_int csx, cex;
1435:
1436: if (TAILQ_EMPTY(&cl->items))
1437: return (NULL);
1438: TAILQ_FOREACH_SAFE(ci, &cl->items, entry, tmp) {
1439: csx = ci->x;
1440: cex = ci->x + ci->used - 1;
1441:
1442: /* Item is entirely before. */
1443: if (cex < sx) {
1444: log_debug("%s: %p %u-%u before %u-%u", __func__, ci,
1445: csx, cex, sx, ex);
1446: continue;
1447: }
1.165 nicm 1448:
1.193 nicm 1449: /* Item is entirely after. */
1450: if (csx > ex) {
1451: log_debug("%s: %p %u-%u after %u-%u", __func__, ci,
1452: csx, cex, sx, ex);
1453: before = ci;
1.165 nicm 1454: break;
1.193 nicm 1455: }
1456:
1457: /* Item is entirely inside. */
1458: if (csx >= sx && cex <= ex) {
1459: log_debug("%s: %p %u-%u inside %u-%u", __func__, ci,
1460: csx, cex, sx, ex);
1461: TAILQ_REMOVE(&cl->items, ci, entry);
1462: screen_write_free_citem(ci);
1463: if (csx == 0 && ci->wrapped && wrapped != NULL)
1464: *wrapped = 1;
1.165 nicm 1465: continue;
1466: }
1467:
1.193 nicm 1468: /* Item under the start. */
1469: if (csx < sx && cex >= sx && cex <= ex) {
1470: log_debug("%s: %p %u-%u start %u-%u", __func__, ci,
1471: csx, cex, sx, ex);
1472: ci->used = sx - csx;
1473: log_debug("%s: %p now %u-%u", __func__, ci, ci->x,
1474: ci->x + ci->used + 1);
1.165 nicm 1475: continue;
1.193 nicm 1476: }
1477:
1478: /* Item covers the end. */
1479: if (cex > ex && csx >= sx && csx <= ex) {
1480: log_debug("%s: %p %u-%u end %u-%u", __func__, ci,
1481: csx, cex, sx, ex);
1482: ci->x = ex + 1;
1483: ci->used = cex - ex;
1484: log_debug("%s: %p now %u-%u", __func__, ci, ci->x,
1485: ci->x + ci->used + 1);
1486: before = ci;
1.165 nicm 1487: break;
1488: }
1.193 nicm 1489:
1490: /* Item must cover both sides. */
1491: log_debug("%s: %p %u-%u under %u-%u", __func__, ci,
1492: csx, cex, sx, ex);
1493: ci2 = screen_write_get_citem();
1494: ci2->type = ci->type;
1495: ci2->bg = ci->bg;
1496: memcpy(&ci2->gc, &ci->gc, sizeof ci2->gc);
1497: TAILQ_INSERT_AFTER(&cl->items, ci, ci2, entry);
1498:
1499: ci->used = sx - csx;
1500: ci2->x = ex + 1;
1501: ci2->used = cex - ex;
1502:
1503: log_debug("%s: %p now %u-%u (%p) and %u-%u (%p)", __func__, ci,
1504: ci->x, ci->x + ci->used - 1, ci, ci2->x,
1505: ci2->x + ci2->used - 1, ci2);
1506: before = ci2;
1507: break;
1508: }
1509: return (before);
1.165 nicm 1510: }
1511:
1.170 nicm 1512: /* Clear collected lines. */
1.109 nicm 1513: static void
1514: screen_write_collect_clear(struct screen_write_ctx *ctx, u_int y, u_int n)
1515: {
1.193 nicm 1516: struct screen_write_cline *cl;
1517: u_int i;
1.109 nicm 1518:
1.151 nicm 1519: for (i = y; i < y + n; i++) {
1.172 nicm 1520: cl = &ctx->s->write_list[i];
1.193 nicm 1521: TAILQ_CONCAT(&screen_write_citem_freelist, &cl->items, entry);
1.109 nicm 1522: }
1523: }
1524:
1525: /* Scroll collected lines up. */
1526: static void
1.193 nicm 1527: screen_write_collect_scroll(struct screen_write_ctx *ctx, u_int bg)
1.109 nicm 1528: {
1.193 nicm 1529: struct screen *s = ctx->s;
1530: struct screen_write_cline *cl;
1531: u_int y;
1532: char *saved;
1533: struct screen_write_citem *ci;
1.109 nicm 1534:
1.114 nicm 1535: log_debug("%s: at %u,%u (region %u-%u)", __func__, s->cx, s->cy,
1536: s->rupper, s->rlower);
1537:
1.109 nicm 1538: screen_write_collect_clear(ctx, s->rupper, 1);
1.172 nicm 1539: saved = ctx->s->write_list[s->rupper].data;
1.109 nicm 1540: for (y = s->rupper; y < s->rlower; y++) {
1.172 nicm 1541: cl = &ctx->s->write_list[y + 1];
1542: TAILQ_CONCAT(&ctx->s->write_list[y].items, &cl->items, entry);
1543: ctx->s->write_list[y].data = cl->data;
1.109 nicm 1544: }
1.172 nicm 1545: ctx->s->write_list[s->rlower].data = saved;
1.193 nicm 1546:
1547: ci = screen_write_get_citem();
1548: ci->x = 0;
1549: ci->used = screen_size_x(s);
1550: ci->type = CLEAR;
1551: ci->bg = bg;
1552: TAILQ_INSERT_TAIL(&ctx->s->write_list[s->rlower].items, ci, entry);
1.109 nicm 1553: }
1554:
1555: /* Flush collected lines. */
1556: static void
1.164 nicm 1557: screen_write_collect_flush(struct screen_write_ctx *ctx, int scroll_only,
1558: const char *from)
1.109 nicm 1559: {
1.193 nicm 1560: struct screen *s = ctx->s;
1561: struct screen_write_citem *ci, *tmp;
1562: struct screen_write_cline *cl;
1563: u_int y, cx, cy, last, items = 0;
1564: struct tty_ctx ttyctx;
1.110 nicm 1565:
1566: if (ctx->scrolled != 0) {
1567: log_debug("%s: scrolled %u (region %u-%u)", __func__,
1568: ctx->scrolled, s->rupper, s->rlower);
1569: if (ctx->scrolled > s->rlower - s->rupper + 1)
1570: ctx->scrolled = s->rlower - s->rupper + 1;
1571:
1.163 nicm 1572: screen_write_initctx(ctx, &ttyctx, 1);
1.110 nicm 1573: ttyctx.num = ctx->scrolled;
1.122 nicm 1574: ttyctx.bg = ctx->bg;
1.110 nicm 1575: tty_write(tty_cmd_scrollup, &ttyctx);
1576: }
1577: ctx->scrolled = 0;
1.122 nicm 1578: ctx->bg = 8;
1579:
1.111 nicm 1580: if (scroll_only)
1581: return;
1.109 nicm 1582:
1583: cx = s->cx; cy = s->cy;
1584: for (y = 0; y < screen_size_y(s); y++) {
1.172 nicm 1585: cl = &ctx->s->write_list[y];
1.193 nicm 1586: last = UINT_MAX;
1.172 nicm 1587: TAILQ_FOREACH_SAFE(ci, &cl->items, entry, tmp) {
1.193 nicm 1588: if (last != UINT_MAX && ci->x <= last) {
1589: fatalx("collect list not in order: %u <= %u",
1590: ci->x, last);
1591: }
1.144 nicm 1592: screen_write_set_cursor(ctx, ci->x, y);
1.193 nicm 1593: if (ci->type == CLEAR) {
1.167 nicm 1594: screen_write_initctx(ctx, &ttyctx, 1);
1.165 nicm 1595: ttyctx.bg = ci->bg;
1.193 nicm 1596: ttyctx.num = ci->used;
1597: tty_write(tty_cmd_clearcharacter, &ttyctx);
1.165 nicm 1598: } else {
1.167 nicm 1599: screen_write_initctx(ctx, &ttyctx, 0);
1.165 nicm 1600: ttyctx.cell = &ci->gc;
1601: ttyctx.wrapped = ci->wrapped;
1.172 nicm 1602: ttyctx.ptr = cl->data + ci->x;
1.165 nicm 1603: ttyctx.num = ci->used;
1604: tty_write(tty_cmd_cells, &ttyctx);
1605: }
1.116 nicm 1606: items++;
1.109 nicm 1607:
1.172 nicm 1608: TAILQ_REMOVE(&cl->items, ci, entry);
1.193 nicm 1609: screen_write_free_citem(ci);
1610: last = ci->x;
1.109 nicm 1611: }
1612: }
1613: s->cx = cx; s->cy = cy;
1.116 nicm 1614:
1.193 nicm 1615: log_debug("%s: flushed %u items (%s)", __func__, items, from);
1.109 nicm 1616: }
1617:
1618: /* Finish and store collected cells. */
1619: void
1620: screen_write_collect_end(struct screen_write_ctx *ctx)
1621: {
1.193 nicm 1622: struct screen *s = ctx->s;
1623: struct screen_write_citem *ci = ctx->item, *before;
1624: struct screen_write_cline *cl = &s->write_list[s->cy];
1625: struct grid_cell gc;
1626: u_int xx;
1627: int wrapped = ci->wrapped;
1.109 nicm 1628:
1629: if (ci->used == 0)
1630: return;
1631:
1.193 nicm 1632: before = screen_write_collect_trim(ctx, s->cy, s->cx, ci->used,
1633: &wrapped);
1.109 nicm 1634: ci->x = s->cx;
1.193 nicm 1635: ci->wrapped = wrapped;
1636: if (before == NULL)
1637: TAILQ_INSERT_TAIL(&cl->items, ci, entry);
1638: else
1639: TAILQ_INSERT_BEFORE(before, ci, entry);
1640: ctx->item = screen_write_get_citem();
1.109 nicm 1641:
1.170 nicm 1642: log_debug("%s: %u %.*s (at %u,%u)", __func__, ci->used,
1.172 nicm 1643: (int)ci->used, cl->data + ci->x, s->cx, s->cy);
1.109 nicm 1644:
1.131 nicm 1645: if (s->cx != 0) {
1646: for (xx = s->cx; xx > 0; xx--) {
1647: grid_view_get_cell(s->grid, xx, s->cy, &gc);
1648: if (~gc.flags & GRID_FLAG_PADDING)
1649: break;
1.136 nicm 1650: grid_view_set_cell(s->grid, xx, s->cy,
1651: &grid_default_cell);
1.131 nicm 1652: }
1.139 nicm 1653: if (gc.data.width > 1) {
1.136 nicm 1654: grid_view_set_cell(s->grid, xx, s->cy,
1655: &grid_default_cell);
1.139 nicm 1656: }
1.131 nicm 1657: }
1658:
1.172 nicm 1659: grid_view_set_cells(s->grid, s->cx, s->cy, &ci->gc, cl->data + ci->x,
1660: ci->used);
1.139 nicm 1661: screen_write_set_cursor(ctx, s->cx + ci->used, -1);
1.131 nicm 1662:
1663: for (xx = s->cx; xx < screen_size_x(s); xx++) {
1664: grid_view_get_cell(s->grid, xx, s->cy, &gc);
1665: if (~gc.flags & GRID_FLAG_PADDING)
1666: break;
1667: grid_view_set_cell(s->grid, xx, s->cy, &grid_default_cell);
1668: }
1.109 nicm 1669: }
1670:
1671: /* Write cell data, collecting if necessary. */
1672: void
1673: screen_write_collect_add(struct screen_write_ctx *ctx,
1674: const struct grid_cell *gc)
1675: {
1.193 nicm 1676: struct screen *s = ctx->s;
1677: struct screen_write_citem *ci;
1678: u_int sx = screen_size_x(s);
1679: int collect;
1.109 nicm 1680:
1681: /*
1682: * Don't need to check that the attributes and whatnot are still the
1.116 nicm 1683: * same - input_parse will end the collection when anything that isn't
1.159 nicm 1684: * a plain character is encountered.
1.109 nicm 1685: */
1686:
1687: collect = 1;
1.136 nicm 1688: if (gc->data.width != 1 || gc->data.size != 1 || *gc->data.data >= 0x7f)
1.109 nicm 1689: collect = 0;
1690: else if (gc->attr & GRID_ATTR_CHARSET)
1691: collect = 0;
1692: else if (~s->mode & MODE_WRAP)
1693: collect = 0;
1694: else if (s->mode & MODE_INSERT)
1695: collect = 0;
1.138 nicm 1696: else if (s->sel != NULL)
1.109 nicm 1697: collect = 0;
1698: if (!collect) {
1699: screen_write_collect_end(ctx);
1.164 nicm 1700: screen_write_collect_flush(ctx, 0, __func__);
1.109 nicm 1701: screen_write_cell(ctx, gc);
1702: return;
1703: }
1704:
1705: if (s->cx > sx - 1 || ctx->item->used > sx - 1 - s->cx)
1706: screen_write_collect_end(ctx);
1.118 nicm 1707: ci = ctx->item; /* may have changed */
1708:
1.109 nicm 1709: if (s->cx > sx - 1) {
1.114 nicm 1710: log_debug("%s: wrapped at %u,%u", __func__, s->cx, s->cy);
1.118 nicm 1711: ci->wrapped = 1;
1.122 nicm 1712: screen_write_linefeed(ctx, 1, 8);
1.139 nicm 1713: screen_write_set_cursor(ctx, 0, -1);
1.109 nicm 1714: }
1715:
1716: if (ci->used == 0)
1717: memcpy(&ci->gc, gc, sizeof ci->gc);
1.172 nicm 1718: if (ctx->s->write_list[s->cy].data == NULL)
1719: ctx->s->write_list[s->cy].data = xmalloc(screen_size_x(ctx->s));
1720: ctx->s->write_list[s->cy].data[s->cx + ci->used++] = gc->data.data[0];
1.109 nicm 1721: }
1722:
1.1 nicm 1723: /* Write cell data. */
1724: void
1.60 nicm 1725: screen_write_cell(struct screen_write_ctx *ctx, const struct grid_cell *gc)
1.1 nicm 1726: {
1727: struct screen *s = ctx->s;
1728: struct grid *gd = s->grid;
1.109 nicm 1729: struct grid_line *gl;
1730: struct grid_cell_entry *gce;
1731: struct grid_cell tmp_gc, now_gc;
1.15 nicm 1732: struct tty_ctx ttyctx;
1.92 nicm 1733: u_int sx = screen_size_x(s), sy = screen_size_y(s);
1.115 nicm 1734: u_int width = gc->data.width, xx, last, cx, cy;
1.109 nicm 1735: int selected, skip = 1;
1.1 nicm 1736:
1.109 nicm 1737: /* Ignore padding cells. */
1.1 nicm 1738: if (gc->flags & GRID_FLAG_PADDING)
1739: return;
1.32 nicm 1740:
1.109 nicm 1741: /* If the width is zero, combine onto the previous character. */
1.1 nicm 1742: if (width == 0) {
1.164 nicm 1743: screen_write_collect_flush(ctx, 0, __func__);
1.104 nicm 1744: if ((gc = screen_write_combine(ctx, &gc->data, &xx)) != 0) {
1.115 nicm 1745: cx = s->cx; cy = s->cy;
1.144 nicm 1746: screen_write_set_cursor(ctx, xx, s->cy);
1.163 nicm 1747: screen_write_initctx(ctx, &ttyctx, 0);
1.104 nicm 1748: ttyctx.cell = gc;
1749: tty_write(tty_cmd_cell, &ttyctx);
1.115 nicm 1750: s->cx = cx; s->cy = cy;
1.1 nicm 1751: }
1752: return;
1753: }
1.112 nicm 1754:
1755: /* Flush any existing scrolling. */
1.164 nicm 1756: screen_write_collect_flush(ctx, 1, __func__);
1.1 nicm 1757:
1.109 nicm 1758: /* If this character doesn't fit, ignore it. */
1759: if ((~s->mode & MODE_WRAP) &&
1760: width > 1 &&
1761: (width > sx || (s->cx != sx && s->cx > sx - width)))
1762: return;
1763:
1.6 nicm 1764: /* If in insert mode, make space for the cells. */
1.98 nicm 1765: if (s->mode & MODE_INSERT) {
1.109 nicm 1766: grid_view_insert_cells(s->grid, s->cx, s->cy, width, 8);
1767: skip = 0;
1768: }
1.6 nicm 1769:
1.20 nicm 1770: /* Check this will fit on the current line and wrap if not. */
1.92 nicm 1771: if ((s->mode & MODE_WRAP) && s->cx > sx - width) {
1.128 nicm 1772: log_debug("%s: wrapped at %u,%u", __func__, s->cx, s->cy);
1.122 nicm 1773: screen_write_linefeed(ctx, 1, 8);
1.139 nicm 1774: screen_write_set_cursor(ctx, 0, -1);
1.164 nicm 1775: screen_write_collect_flush(ctx, 1, __func__);
1.1 nicm 1776: }
1777:
1.64 nicm 1778: /* Sanity check cursor position. */
1.92 nicm 1779: if (s->cx > sx - width || s->cy > sy - 1)
1.1 nicm 1780: return;
1.163 nicm 1781: screen_write_initctx(ctx, &ttyctx, 0);
1.106 nicm 1782:
1.1 nicm 1783: /* Handle overwriting of UTF-8 characters. */
1.137 nicm 1784: gl = grid_get_line(s->grid, s->grid->hsize + s->cy);
1.92 nicm 1785: if (gl->flags & GRID_LINE_EXTENDED) {
1786: grid_view_get_cell(gd, s->cx, s->cy, &now_gc);
1787: if (screen_write_overwrite(ctx, &now_gc, width))
1788: skip = 0;
1789: }
1.1 nicm 1790:
1791: /*
1792: * If the new character is UTF-8 wide, fill in padding cells. Have
1793: * already ensured there is enough room.
1794: */
1.89 nicm 1795: for (xx = s->cx + 1; xx < s->cx + width; xx++) {
1.131 nicm 1796: log_debug("%s: new padding at %u,%u", __func__, xx, s->cy);
1.184 nicm 1797: grid_view_set_padding(gd, xx, s->cy);
1.89 nicm 1798: skip = 0;
1799: }
1800:
1801: /* If no change, do not draw. */
1.92 nicm 1802: if (skip) {
1803: if (s->cx >= gl->cellsize)
1804: skip = grid_cells_equal(gc, &grid_default_cell);
1805: else {
1806: gce = &gl->celldata[s->cx];
1807: if (gce->flags & GRID_FLAG_EXTENDED)
1808: skip = 0;
1.95 nicm 1809: else if (gc->flags != gce->flags)
1.92 nicm 1810: skip = 0;
1811: else if (gc->attr != gce->data.attr)
1812: skip = 0;
1813: else if (gc->fg != gce->data.fg)
1814: skip = 0;
1815: else if (gc->bg != gce->data.bg)
1816: skip = 0;
1.95 nicm 1817: else if (gc->data.width != 1)
1818: skip = 0;
1.109 nicm 1819: else if (gc->data.size != 1)
1820: skip = 0;
1.95 nicm 1821: else if (gce->data.data != gc->data.data[0])
1.92 nicm 1822: skip = 0;
1823: }
1824: }
1.1 nicm 1825:
1.127 nicm 1826: /* Update the selected flag and set the cell. */
1.90 nicm 1827: selected = screen_check_selection(s, s->cx, s->cy);
1.109 nicm 1828: if (selected && (~gc->flags & GRID_FLAG_SELECTED)) {
1.90 nicm 1829: memcpy(&tmp_gc, gc, sizeof tmp_gc);
1830: tmp_gc.flags |= GRID_FLAG_SELECTED;
1831: grid_view_set_cell(gd, s->cx, s->cy, &tmp_gc);
1.109 nicm 1832: } else if (!selected && (gc->flags & GRID_FLAG_SELECTED)) {
1.90 nicm 1833: memcpy(&tmp_gc, gc, sizeof tmp_gc);
1834: tmp_gc.flags &= ~GRID_FLAG_SELECTED;
1835: grid_view_set_cell(gd, s->cx, s->cy, &tmp_gc);
1836: } else if (!skip)
1.89 nicm 1837: grid_view_set_cell(gd, s->cx, s->cy, gc);
1.109 nicm 1838: if (selected)
1839: skip = 0;
1.1 nicm 1840:
1.64 nicm 1841: /*
1842: * Move the cursor. If not wrapping, stick at the last character and
1843: * replace it.
1844: */
1.65 nicm 1845: last = !(s->mode & MODE_WRAP);
1.92 nicm 1846: if (s->cx <= sx - last - width)
1.139 nicm 1847: screen_write_set_cursor(ctx, s->cx + width, -1);
1.64 nicm 1848: else
1.139 nicm 1849: screen_write_set_cursor(ctx, sx - last, -1);
1.1 nicm 1850:
1.89 nicm 1851: /* Create space for character in insert mode. */
1.109 nicm 1852: if (s->mode & MODE_INSERT) {
1.164 nicm 1853: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 1854: ttyctx.num = width;
1855: tty_write(tty_cmd_insertcharacter, &ttyctx);
1856: }
1.89 nicm 1857:
1858: /* Write to the screen. */
1.109 nicm 1859: if (!skip) {
1860: if (selected) {
1861: screen_select_cell(s, &tmp_gc, gc);
1862: ttyctx.cell = &tmp_gc;
1863: } else
1864: ttyctx.cell = gc;
1.16 nicm 1865: tty_write(tty_cmd_cell, &ttyctx);
1.193 nicm 1866: }
1.35 nicm 1867: }
1868:
1869: /* Combine a UTF-8 zero-width character onto the previous. */
1.104 nicm 1870: static const struct grid_cell *
1871: screen_write_combine(struct screen_write_ctx *ctx, const struct utf8_data *ud,
1872: u_int *xx)
1.35 nicm 1873: {
1874: struct screen *s = ctx->s;
1875: struct grid *gd = s->grid;
1.104 nicm 1876: static struct grid_cell gc;
1877: u_int n;
1.35 nicm 1878:
1879: /* Can't combine if at 0. */
1880: if (s->cx == 0)
1.104 nicm 1881: return (NULL);
1.35 nicm 1882:
1.60 nicm 1883: /* Empty data is out. */
1884: if (ud->size == 0)
1.37 nicm 1885: fatalx("UTF-8 data empty");
1886:
1.60 nicm 1887: /* Retrieve the previous cell. */
1.119 nicm 1888: for (n = 1; n <= s->cx; n++) {
1.104 nicm 1889: grid_view_get_cell(gd, s->cx - n, s->cy, &gc);
1890: if (~gc.flags & GRID_FLAG_PADDING)
1891: break;
1892: }
1.119 nicm 1893: if (n > s->cx)
1.104 nicm 1894: return (NULL);
1895: *xx = s->cx - n;
1.35 nicm 1896:
1.60 nicm 1897: /* Check there is enough space. */
1.77 nicm 1898: if (gc.data.size + ud->size > sizeof gc.data.data)
1.104 nicm 1899: return (NULL);
1900:
1901: log_debug("%s: %.*s onto %.*s at %u,%u", __func__, (int)ud->size,
1902: ud->data, (int)gc.data.size, gc.data.data, *xx, s->cy);
1.35 nicm 1903:
1.77 nicm 1904: /* Append the data. */
1905: memcpy(gc.data.data + gc.data.size, ud->data, ud->size);
1906: gc.data.size += ud->size;
1907:
1908: /* Set the new cell. */
1.104 nicm 1909: grid_view_set_cell(gd, *xx, s->cy, &gc);
1.35 nicm 1910:
1.104 nicm 1911: return (&gc);
1.1 nicm 1912: }
1913:
1914: /*
1915: * UTF-8 wide characters are a bit of an annoyance. They take up more than one
1916: * cell on the screen, so following cells must not be drawn by marking them as
1917: * padding.
1918: *
1919: * So far, so good. The problem is, when overwriting a padding cell, or a UTF-8
1920: * character, it is necessary to also overwrite any other cells which covered
1921: * by the same character.
1922: */
1.89 nicm 1923: static int
1924: screen_write_overwrite(struct screen_write_ctx *ctx, struct grid_cell *gc,
1925: u_int width)
1.1 nicm 1926: {
1927: struct screen *s = ctx->s;
1928: struct grid *gd = s->grid;
1.89 nicm 1929: struct grid_cell tmp_gc;
1.1 nicm 1930: u_int xx;
1.89 nicm 1931: int done = 0;
1.1 nicm 1932:
1.89 nicm 1933: if (gc->flags & GRID_FLAG_PADDING) {
1.1 nicm 1934: /*
1935: * A padding cell, so clear any following and leading padding
1936: * cells back to the character. Don't overwrite the current
1937: * cell as that happens later anyway.
1938: */
1939: xx = s->cx + 1;
1940: while (--xx > 0) {
1.89 nicm 1941: grid_view_get_cell(gd, xx, s->cy, &tmp_gc);
1942: if (~tmp_gc.flags & GRID_FLAG_PADDING)
1.1 nicm 1943: break;
1.131 nicm 1944: log_debug("%s: padding at %u,%u", __func__, xx, s->cy);
1.1 nicm 1945: grid_view_set_cell(gd, xx, s->cy, &grid_default_cell);
1946: }
1947:
1948: /* Overwrite the character at the start of this padding. */
1.131 nicm 1949: log_debug("%s: character at %u,%u", __func__, xx, s->cy);
1.1 nicm 1950: grid_view_set_cell(gd, xx, s->cy, &grid_default_cell);
1.89 nicm 1951: done = 1;
1.43 nicm 1952: }
1.1 nicm 1953:
1.43 nicm 1954: /*
1.95 nicm 1955: * Overwrite any padding cells that belong to any UTF-8 characters
1956: * we'll be overwriting with the current character.
1.43 nicm 1957: */
1.95 nicm 1958: if (width != 1 ||
1959: gc->data.width != 1 ||
1960: gc->flags & GRID_FLAG_PADDING) {
1.89 nicm 1961: xx = s->cx + width - 1;
1962: while (++xx < screen_size_x(s)) {
1963: grid_view_get_cell(gd, xx, s->cy, &tmp_gc);
1964: if (~tmp_gc.flags & GRID_FLAG_PADDING)
1965: break;
1.160 nicm 1966: log_debug("%s: overwrite at %u,%u", __func__, xx,
1967: s->cy);
1.89 nicm 1968: grid_view_set_cell(gd, xx, s->cy, &grid_default_cell);
1969: done = 1;
1970: }
1.1 nicm 1971: }
1.89 nicm 1972:
1973: return (done);
1.50 nicm 1974: }
1975:
1.107 nicm 1976: /* Set external clipboard. */
1.50 nicm 1977: void
1978: screen_write_setselection(struct screen_write_ctx *ctx, u_char *str, u_int len)
1979: {
1980: struct tty_ctx ttyctx;
1981:
1.163 nicm 1982: screen_write_initctx(ctx, &ttyctx, 0);
1.50 nicm 1983: ttyctx.ptr = str;
1984: ttyctx.num = len;
1985:
1986: tty_write(tty_cmd_setselection, &ttyctx);
1.47 nicm 1987: }
1988:
1.107 nicm 1989: /* Write unmodified string. */
1.47 nicm 1990: void
1991: screen_write_rawstring(struct screen_write_ctx *ctx, u_char *str, u_int len)
1992: {
1.87 nicm 1993: struct tty_ctx ttyctx;
1.47 nicm 1994:
1.163 nicm 1995: screen_write_initctx(ctx, &ttyctx, 0);
1.47 nicm 1996: ttyctx.ptr = str;
1997: ttyctx.num = len;
1998:
1999: tty_write(tty_cmd_rawstring, &ttyctx);
1.178 nicm 2000: }
2001:
2002: /* Turn alternate screen on. */
2003: void
2004: screen_write_alternateon(struct screen_write_ctx *ctx, struct grid_cell *gc,
2005: int cursor)
2006: {
2007: struct tty_ctx ttyctx;
2008: struct window_pane *wp = ctx->wp;
2009:
2010: if (wp != NULL && !options_get_number(wp->options, "alternate-screen"))
2011: return;
1.192 nicm 2012:
2013: screen_write_collect_flush(ctx, 0, __func__);
1.178 nicm 2014: screen_alternate_on(ctx->s, gc, cursor);
2015:
2016: screen_write_initctx(ctx, &ttyctx, 1);
2017: ttyctx.redraw_cb(&ttyctx);
2018: }
2019:
2020: /* Turn alternate screen off. */
2021: void
2022: screen_write_alternateoff(struct screen_write_ctx *ctx, struct grid_cell *gc,
2023: int cursor)
2024: {
2025: struct tty_ctx ttyctx;
2026: struct window_pane *wp = ctx->wp;
2027:
2028: if (wp != NULL && !options_get_number(wp->options, "alternate-screen"))
2029: return;
1.192 nicm 2030:
2031: screen_write_collect_flush(ctx, 0, __func__);
1.178 nicm 2032: screen_alternate_off(ctx->s, gc, cursor);
2033:
2034: screen_write_initctx(ctx, &ttyctx, 1);
2035: ttyctx.redraw_cb(&ttyctx);
1.1 nicm 2036: }
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