Annotation of src/usr.bin/tmux/screen-write.c, Revision 1.184
1.184 ! nicm 1: /* $OpenBSD: screen-write.c,v 1.183 2020/06/02 20:10:23 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:
1.109 nicm 26: static void screen_write_collect_clear(struct screen_write_ctx *, u_int,
27: u_int);
1.165 nicm 28: static int screen_write_collect_clear_end(struct screen_write_ctx *, u_int,
29: u_int, u_int);
1.178 nicm 30: static int screen_write_collect_clear_start(struct screen_write_ctx *,
31: u_int, u_int, u_int);
1.109 nicm 32: static void screen_write_collect_scroll(struct screen_write_ctx *);
1.164 nicm 33: static void screen_write_collect_flush(struct screen_write_ctx *, int,
34: const char *);
1.87 nicm 35:
1.89 nicm 36: static int screen_write_overwrite(struct screen_write_ctx *,
37: struct grid_cell *, u_int);
1.104 nicm 38: static const struct grid_cell *screen_write_combine(struct screen_write_ctx *,
39: const struct utf8_data *, u_int *);
1.1 nicm 40:
1.109 nicm 41: struct screen_write_collect_item {
42: u_int x;
1.118 nicm 43: int wrapped;
1.109 nicm 44:
1.168 nicm 45: enum { TEXT, CLEAR_END, CLEAR_START } type;
1.109 nicm 46: u_int used;
1.170 nicm 47: u_int bg;
1.109 nicm 48:
49: struct grid_cell gc;
50:
1.126 nicm 51: TAILQ_ENTRY(screen_write_collect_item) entry;
1.109 nicm 52: };
53: struct screen_write_collect_line {
1.170 nicm 54: u_int bg;
55: char *data;
56: TAILQ_HEAD(, screen_write_collect_item) items;
1.109 nicm 57: };
1.92 nicm 58:
1.139 nicm 59: static void
60: screen_write_offset_timer(__unused int fd, __unused short events, void *data)
61: {
62: struct window *w = data;
63:
64: tty_update_window_offset(w);
65: }
66:
67: /* Set cursor position. */
68: static void
69: screen_write_set_cursor(struct screen_write_ctx *ctx, int cx, int cy)
70: {
71: struct window_pane *wp = ctx->wp;
72: struct window *w;
73: struct screen *s = ctx->s;
74: struct timeval tv = { .tv_usec = 10000 };
75:
76: if (cx != -1 && (u_int)cx == s->cx && cy != -1 && (u_int)cy == s->cy)
77: return;
78:
1.144 nicm 79: if (cx != -1) {
1.145 nicm 80: if ((u_int)cx > screen_size_x(s)) /* allow last column */
1.144 nicm 81: cx = screen_size_x(s) - 1;
1.139 nicm 82: s->cx = cx;
1.144 nicm 83: }
84: if (cy != -1) {
85: if ((u_int)cy > screen_size_y(s) - 1)
86: cy = screen_size_y(s) - 1;
1.139 nicm 87: s->cy = cy;
1.144 nicm 88: }
1.139 nicm 89:
90: if (wp == NULL)
91: return;
92: w = wp->window;
93:
94: if (!event_initialized(&w->offset_timer))
95: evtimer_set(&w->offset_timer, screen_write_offset_timer, w);
96: if (!evtimer_pending(&w->offset_timer, NULL))
97: evtimer_add(&w->offset_timer, &tv);
98: }
99:
1.178 nicm 100: /* Do a full redraw. */
101: static void
102: screen_write_redraw_cb(const struct tty_ctx *ttyctx)
103: {
104: struct window_pane *wp = ttyctx->arg;
105:
106: wp->flags |= PANE_REDRAW;
107: }
108:
109: /* Update context for client. */
110: static int
111: screen_write_set_client_cb(struct tty_ctx *ttyctx, struct client *c)
112: {
113: struct window_pane *wp = ttyctx->arg;
114:
115: if (c->session->curw->window != wp->window)
116: return (0);
117: if (wp->layout_cell == NULL)
118: return (0);
119:
120: if (wp->flags & (PANE_REDRAW|PANE_DROP))
121: return (-1);
122: if (c->flags & CLIENT_REDRAWPANES) {
123: /*
124: * Redraw is already deferred to redraw another pane - redraw
125: * this one also when that happens.
126: */
127: log_debug("adding %%%u to deferred redraw", wp->id);
128: wp->flags |= PANE_REDRAW;
129: return (-1);
130: }
131:
132: ttyctx->bigger = tty_window_offset(&c->tty, &ttyctx->wox, &ttyctx->woy,
133: &ttyctx->wsx, &ttyctx->wsy);
134:
135: ttyctx->xoff = ttyctx->rxoff = wp->xoff;
136: ttyctx->yoff = ttyctx->ryoff = wp->yoff;
137:
138: if (status_at_line(c) == 0)
139: ttyctx->yoff += status_line_size(c);
140:
141: return (1);
142: }
143:
1.163 nicm 144: /* Set up context for TTY command. */
145: static void
146: screen_write_initctx(struct screen_write_ctx *ctx, struct tty_ctx *ttyctx,
147: int sync)
148: {
149: struct screen *s = ctx->s;
150:
151: memset(ttyctx, 0, sizeof *ttyctx);
152:
1.178 nicm 153: if (ctx->wp != NULL) {
154: tty_default_colours(&ttyctx->defaults, ctx->wp);
155: ttyctx->palette = ctx->wp->palette;
156: } else {
157: memcpy(&ttyctx->defaults, &grid_default_cell,
158: sizeof ttyctx->defaults);
159: ttyctx->palette = NULL;
160: }
1.177 nicm 161:
1.178 nicm 162: ttyctx->s = s;
1.177 nicm 163: ttyctx->sx = screen_size_x(s);
164: ttyctx->sy = screen_size_y(s);
1.163 nicm 165:
166: ttyctx->ocx = s->cx;
167: ttyctx->ocy = s->cy;
168: ttyctx->orlower = s->rlower;
169: ttyctx->orupper = s->rupper;
170:
1.178 nicm 171: if (ctx->init_ctx_cb != NULL)
172: ctx->init_ctx_cb(ctx, ttyctx);
173: else {
174: ttyctx->redraw_cb = screen_write_redraw_cb;
175: if (ctx->wp == NULL)
176: ttyctx->set_client_cb = NULL;
177: else
178: ttyctx->set_client_cb = screen_write_set_client_cb;
179: ttyctx->arg = ctx->wp;
180: }
181:
1.174 nicm 182: if (ctx->wp != NULL &&
1.180 nicm 183: (~ctx->flags & SCREEN_WRITE_SYNC) &&
1.174 nicm 184: (sync || ctx->wp != ctx->wp->window->active)) {
1.163 nicm 185: tty_write(tty_cmd_syncstart, ttyctx);
1.180 nicm 186: ctx->flags |= SCREEN_WRITE_SYNC;
1.163 nicm 187: }
188: }
189:
1.170 nicm 190: /* Make write list. */
191: void
192: screen_write_make_list(struct screen *s)
193: {
194: u_int y;
195:
196: s->write_list = xcalloc(screen_size_y(s), sizeof *s->write_list);
197: for (y = 0; y < screen_size_y(s); y++)
198: TAILQ_INIT(&s->write_list[y].items);
199: }
200:
201: /* Free write list. */
202: void
203: screen_write_free_list(struct screen *s)
204: {
205: u_int y;
206:
207: for (y = 0; y < screen_size_y(s); y++)
208: free(s->write_list[y].data);
209: free(s->write_list);
210: }
211:
1.178 nicm 212: /* Set up for writing. */
213: static void
214: screen_write_init(struct screen_write_ctx *ctx, struct screen *s)
1.1 nicm 215: {
1.109 nicm 216: memset(ctx, 0, sizeof *ctx);
1.92 nicm 217:
1.178 nicm 218: ctx->s = s;
1.92 nicm 219:
1.170 nicm 220: if (ctx->s->write_list == NULL)
221: screen_write_make_list(ctx->s);
1.109 nicm 222: ctx->item = xcalloc(1, sizeof *ctx->item);
1.92 nicm 223:
1.122 nicm 224: ctx->scrolled = 0;
225: ctx->bg = 8;
1.178 nicm 226: }
227:
228: /* Initialize writing with a pane. */
229: void
230: screen_write_start_pane(struct screen_write_ctx *ctx, struct window_pane *wp,
231: struct screen *s)
232: {
233: if (s == NULL)
234: s = wp->screen;
235: screen_write_init(ctx, s);
236: ctx->wp = wp;
237:
238: if (log_get_level() != 0) {
239: log_debug("%s: size %ux%u, pane %%%u (at %u,%u)",
240: __func__, screen_size_x(ctx->s), screen_size_y(ctx->s),
241: wp->id, wp->xoff, wp->yoff);
242: }
243: }
244:
245: /* Initialize writing with a callback. */
246: void
247: screen_write_start_callback(struct screen_write_ctx *ctx, struct screen *s,
248: screen_write_init_ctx_cb cb, void *arg)
249: {
250: screen_write_init(ctx, s);
251:
252: ctx->init_ctx_cb = cb;
253: ctx->arg = arg;
254:
255: if (log_get_level() != 0) {
256: log_debug("%s: size %ux%u, with callback", __func__,
257: screen_size_x(ctx->s), screen_size_y(ctx->s));
258: }
259: }
260:
261:
262: /* Initialize writing. */
263: void
264: screen_write_start(struct screen_write_ctx *ctx, struct screen *s)
265: {
266: screen_write_init(ctx, s);
1.122 nicm 267:
1.158 nicm 268: if (log_get_level() != 0) {
1.178 nicm 269: log_debug("%s: size %ux%u, no pane", __func__,
270: screen_size_x(ctx->s), screen_size_y(ctx->s));
1.139 nicm 271: }
1.1 nicm 272: }
273:
274: /* Finish writing. */
275: void
1.92 nicm 276: screen_write_stop(struct screen_write_ctx *ctx)
277: {
1.109 nicm 278: screen_write_collect_end(ctx);
1.164 nicm 279: screen_write_collect_flush(ctx, 0, __func__);
1.92 nicm 280:
1.109 nicm 281: log_debug("%s: %u cells (%u written, %u skipped)", __func__,
282: ctx->cells, ctx->written, ctx->skipped);
1.169 nicm 283: if (ctx->wp != NULL) {
284: ctx->wp->written += ctx->written;
285: ctx->wp->skipped += ctx->skipped;
1.163 nicm 286: }
1.92 nicm 287:
1.109 nicm 288: free(ctx->item);
1.52 nicm 289: }
290:
291: /* Reset screen state. */
292: void
293: screen_write_reset(struct screen_write_ctx *ctx)
294: {
1.61 nicm 295: struct screen *s = ctx->s;
1.52 nicm 296:
1.61 nicm 297: screen_reset_tabs(s);
298: screen_write_scrollregion(ctx, 0, screen_size_y(s) - 1);
1.63 nicm 299:
1.141 nicm 300: s->mode = MODE_CURSOR | MODE_WRAP;
1.52 nicm 301:
1.99 nicm 302: screen_write_clearscreen(ctx, 8);
1.144 nicm 303: screen_write_set_cursor(ctx, 0, 0);
1.1 nicm 304: }
305:
306: /* Write character. */
307: void
1.86 nicm 308: screen_write_putc(struct screen_write_ctx *ctx, const struct grid_cell *gcp,
1.69 nicm 309: u_char ch)
1.1 nicm 310: {
1.86 nicm 311: struct grid_cell gc;
312:
313: memcpy(&gc, gcp, sizeof gc);
314:
315: utf8_set(&gc.data, ch);
316: screen_write_cell(ctx, &gc);
1.1 nicm 317: }
318:
1.2 nicm 319: /* Calculate string length. */
1.71 nicm 320: size_t
1.75 nicm 321: screen_write_strlen(const char *fmt, ...)
1.2 nicm 322: {
1.36 nicm 323: va_list ap;
324: char *msg;
1.76 nicm 325: struct utf8_data ud;
1.36 nicm 326: u_char *ptr;
327: size_t left, size = 0;
1.79 nicm 328: enum utf8_state more;
1.2 nicm 329:
330: va_start(ap, fmt);
331: xvasprintf(&msg, fmt, ap);
332: va_end(ap);
333:
334: ptr = msg;
335: while (*ptr != '\0') {
1.79 nicm 336: if (*ptr > 0x7f && utf8_open(&ud, *ptr) == UTF8_MORE) {
1.36 nicm 337: ptr++;
1.2 nicm 338:
339: left = strlen(ptr);
1.77 nicm 340: if (left < (size_t)ud.size - 1)
1.36 nicm 341: break;
1.79 nicm 342: while ((more = utf8_append(&ud, *ptr)) == UTF8_MORE)
1.2 nicm 343: ptr++;
1.36 nicm 344: ptr++;
345:
1.79 nicm 346: if (more == UTF8_DONE)
1.78 nicm 347: size += ud.width;
1.2 nicm 348: } else {
1.75 nicm 349: if (*ptr > 0x1f && *ptr < 0x7f)
350: size++;
1.2 nicm 351: ptr++;
352: }
1.7 ray 353: }
1.2 nicm 354:
1.56 nicm 355: free(msg);
1.2 nicm 356: return (size);
357: }
358:
1.179 nicm 359: /* Write string wrapped over lines. */
360: int
361: screen_write_text(struct screen_write_ctx *ctx, u_int cx, u_int width,
362: u_int lines, int more, const struct grid_cell *gcp, const char *fmt, ...)
363: {
364: struct screen *s = ctx->s;
365: va_list ap;
366: char *tmp;
367: u_int cy = s->cy, i, end, next, idx = 0, at, left;
368: struct utf8_data *text;
369: struct grid_cell gc;
370:
371: memcpy(&gc, gcp, sizeof gc);
372:
373: va_start(ap, fmt);
374: xvasprintf(&tmp, fmt, ap);
375: va_end(ap);
376:
377: text = utf8_fromcstr(tmp);
378: free(tmp);
379:
380: left = (cx + width) - s->cx;
381: for (;;) {
382: /* Find the end of what can fit on the line. */
383: at = 0;
384: for (end = idx; text[end].size != 0; end++) {
385: if (text[end].size == 1 && text[end].data[0] == '\n')
386: break;
387: if (at + text[end].width > left)
388: break;
389: at += text[end].width;
390: }
391:
392: /*
393: * If we're on a space, that's the end. If not, walk back to
394: * try and find one.
395: */
396: if (text[end].size == 0)
397: next = end;
398: else if (text[end].size == 1 && text[end].data[0] == '\n')
399: next = end + 1;
400: else if (text[end].size == 1 && text[end].data[0] == ' ')
401: next = end + 1;
402: else {
403: for (i = end; i > idx; i--) {
404: if (text[i].size == 1 && text[i].data[0] == ' ')
405: break;
406: }
407: if (i != idx) {
408: next = i + 1;
409: end = i;
410: } else
411: next = end;
412: }
413:
414: /* Print the line. */
415: for (i = idx; i < end; i++) {
416: utf8_copy(&gc.data, &text[i]);
417: screen_write_cell(ctx, &gc);
418: }
419:
420: /* If at the bottom, stop. */
421: idx = next;
422: if (s->cy == cy + lines - 1 || text[idx].size == 0)
423: break;
424:
425: screen_write_cursormove(ctx, cx, s->cy + 1, 0);
426: left = width;
427: }
428:
429: /*
430: * Fail if on the last line and there is more to come or at the end, or
431: * if the text was not entirely consumed.
432: */
433: if ((s->cy == cy + lines - 1 && (!more || s->cx == cx + width)) ||
434: text[idx].size != 0) {
435: free(text);
436: return (0);
437: }
438: free(text);
439:
440: /*
441: * If no more to come, move to the next line. Otherwise, leave on
442: * the same line (except if at the end).
443: */
444: if (!more || s->cx == cx + width)
445: screen_write_cursormove(ctx, cx, s->cy + 1, 0);
446: return (1);
447: }
448:
449: /* Write simple string (no maximum length). */
1.71 nicm 450: void
1.86 nicm 451: screen_write_puts(struct screen_write_ctx *ctx, const struct grid_cell *gcp,
1.71 nicm 452: const char *fmt, ...)
1.1 nicm 453: {
454: va_list ap;
455:
456: va_start(ap, fmt);
1.86 nicm 457: screen_write_vnputs(ctx, -1, gcp, fmt, ap);
1.2 nicm 458: va_end(ap);
459: }
460:
461: /* Write string with length limit (-1 for unlimited). */
1.71 nicm 462: void
463: screen_write_nputs(struct screen_write_ctx *ctx, ssize_t maxlen,
1.86 nicm 464: const struct grid_cell *gcp, const char *fmt, ...)
1.2 nicm 465: {
466: va_list ap;
467:
468: va_start(ap, fmt);
1.86 nicm 469: screen_write_vnputs(ctx, maxlen, gcp, fmt, ap);
1.2 nicm 470: va_end(ap);
471: }
472:
473: void
1.3 nicm 474: screen_write_vnputs(struct screen_write_ctx *ctx, ssize_t maxlen,
1.86 nicm 475: const struct grid_cell *gcp, const char *fmt, va_list ap)
1.2 nicm 476: {
1.86 nicm 477: struct grid_cell gc;
478: struct utf8_data *ud = &gc.data;
1.36 nicm 479: char *msg;
480: u_char *ptr;
481: size_t left, size = 0;
1.79 nicm 482: enum utf8_state more;
1.2 nicm 483:
1.86 nicm 484: memcpy(&gc, gcp, sizeof gc);
1.1 nicm 485: xvasprintf(&msg, fmt, ap);
486:
1.2 nicm 487: ptr = msg;
488: while (*ptr != '\0') {
1.86 nicm 489: if (*ptr > 0x7f && utf8_open(ud, *ptr) == UTF8_MORE) {
1.36 nicm 490: ptr++;
1.2 nicm 491:
492: left = strlen(ptr);
1.86 nicm 493: if (left < (size_t)ud->size - 1)
1.36 nicm 494: break;
1.86 nicm 495: while ((more = utf8_append(ud, *ptr)) == UTF8_MORE)
1.2 nicm 496: ptr++;
1.36 nicm 497: ptr++;
1.7 ray 498:
1.86 nicm 499: if (more != UTF8_DONE)
500: continue;
501: if (maxlen > 0 && size + ud->width > (size_t)maxlen) {
502: while (size < (size_t)maxlen) {
503: screen_write_putc(ctx, &gc, ' ');
504: size++;
1.2 nicm 505: }
1.86 nicm 506: break;
1.2 nicm 507: }
1.86 nicm 508: size += ud->width;
509: screen_write_cell(ctx, &gc);
1.2 nicm 510: } else {
1.86 nicm 511: if (maxlen > 0 && size + 1 > (size_t)maxlen)
1.2 nicm 512: break;
513:
1.57 nicm 514: if (*ptr == '\001')
1.86 nicm 515: gc.attr ^= GRID_ATTR_CHARSET;
1.75 nicm 516: else if (*ptr > 0x1f && *ptr < 0x7f) {
1.57 nicm 517: size++;
1.86 nicm 518: screen_write_putc(ctx, &gc, *ptr);
1.75 nicm 519: }
1.24 nicm 520: ptr++;
521: }
522: }
523:
1.56 nicm 524: free(msg);
1.1 nicm 525: }
526:
1.132 nicm 527: /*
1.176 nicm 528: * Copy from another screen but without the selection stuff. Assumes the target
529: * region is already big enough.
1.132 nicm 530: */
531: void
532: screen_write_fast_copy(struct screen_write_ctx *ctx, struct screen *src,
533: u_int px, u_int py, u_int nx, u_int ny)
534: {
535: struct screen *s = ctx->s;
536: struct grid *gd = src->grid;
537: struct grid_cell gc;
538: u_int xx, yy, cx, cy;
1.96 nicm 539:
1.132 nicm 540: if (nx == 0 || ny == 0)
541: return;
542:
543: cy = s->cy;
544: for (yy = py; yy < py + ny; yy++) {
1.134 nicm 545: if (yy >= gd->hsize + gd->sy)
546: break;
1.132 nicm 547: cx = s->cx;
548: for (xx = px; xx < px + nx; xx++) {
1.137 nicm 549: if (xx >= grid_get_line(gd, yy)->cellsize)
1.132 nicm 550: break;
551: grid_get_cell(gd, xx, yy, &gc);
1.135 nicm 552: if (xx + gc.data.width > px + nx)
553: break;
1.150 nicm 554: grid_view_set_cell(ctx->s->grid, cx, cy, &gc);
1.132 nicm 555: cx++;
556: }
1.1 nicm 557: cy++;
1.125 nicm 558: }
559: }
560:
1.129 nicm 561: /* Draw a horizontal line on screen. */
1.125 nicm 562: void
1.129 nicm 563: screen_write_hline(struct screen_write_ctx *ctx, u_int nx, int left, int right)
1.125 nicm 564: {
565: struct screen *s = ctx->s;
566: struct grid_cell gc;
567: u_int cx, cy, i;
568:
569: cx = s->cx;
570: cy = s->cy;
571:
572: memcpy(&gc, &grid_default_cell, sizeof gc);
573: gc.attr |= GRID_ATTR_CHARSET;
574:
575: screen_write_putc(ctx, &gc, left ? 't' : 'q');
576: for (i = 1; i < nx - 1; i++)
577: screen_write_putc(ctx, &gc, 'q');
578: screen_write_putc(ctx, &gc, right ? 'u' : 'q');
1.129 nicm 579:
1.144 nicm 580: screen_write_set_cursor(ctx, cx, cy);
1.129 nicm 581: }
582:
583: /* Draw a horizontal line on screen. */
584: void
1.130 nicm 585: screen_write_vline(struct screen_write_ctx *ctx, u_int ny, int top, int bottom)
1.129 nicm 586: {
587: struct screen *s = ctx->s;
588: struct grid_cell gc;
589: u_int cx, cy, i;
590:
591: cx = s->cx;
592: cy = s->cy;
593:
594: memcpy(&gc, &grid_default_cell, sizeof gc);
595: gc.attr |= GRID_ATTR_CHARSET;
596:
597: screen_write_putc(ctx, &gc, top ? 'w' : 'x');
598: for (i = 1; i < ny - 1; i++) {
1.144 nicm 599: screen_write_set_cursor(ctx, cx, cy + i);
1.129 nicm 600: screen_write_putc(ctx, &gc, 'x');
601: }
1.144 nicm 602: screen_write_set_cursor(ctx, cx, cy + ny - 1);
1.129 nicm 603: screen_write_putc(ctx, &gc, bottom ? 'v' : 'x');
1.152 nicm 604:
605: screen_write_set_cursor(ctx, cx, cy);
606: }
607:
608: /* Draw a menu on screen. */
609: void
1.161 nicm 610: screen_write_menu(struct screen_write_ctx *ctx, struct menu *menu,
611: int choice, const struct grid_cell *choice_gc)
1.152 nicm 612: {
613: struct screen *s = ctx->s;
1.161 nicm 614: struct grid_cell default_gc;
615: const struct grid_cell *gc = &default_gc;
1.152 nicm 616: u_int cx, cy, i, j;
1.153 nicm 617: const char *name;
1.152 nicm 618:
619: cx = s->cx;
620: cy = s->cy;
621:
1.161 nicm 622: memcpy(&default_gc, &grid_default_cell, sizeof default_gc);
1.152 nicm 623:
624: screen_write_box(ctx, menu->width + 4, menu->count + 2);
625: screen_write_cursormove(ctx, cx + 2, cy, 0);
1.161 nicm 626: format_draw(ctx, &default_gc, menu->width, menu->title, NULL);
1.152 nicm 627:
628: for (i = 0; i < menu->count; i++) {
1.153 nicm 629: name = menu->items[i].name;
630: if (name == NULL) {
1.152 nicm 631: screen_write_cursormove(ctx, cx, cy + 1 + i, 0);
632: screen_write_hline(ctx, menu->width + 4, 1, 1);
633: } else {
1.153 nicm 634: if (choice >= 0 && i == (u_int)choice && *name != '-')
1.161 nicm 635: gc = choice_gc;
1.152 nicm 636: screen_write_cursormove(ctx, cx + 2, cy + 1 + i, 0);
637: for (j = 0; j < menu->width; j++)
1.161 nicm 638: screen_write_putc(ctx, gc, ' ');
1.152 nicm 639: screen_write_cursormove(ctx, cx + 2, cy + 1 + i, 0);
1.153 nicm 640: if (*name == '-') {
641: name++;
1.161 nicm 642: default_gc.attr |= GRID_ATTR_DIM;
643: format_draw(ctx, gc, menu->width, name, NULL);
644: default_gc.attr &= ~GRID_ATTR_DIM;
1.153 nicm 645: } else
1.161 nicm 646: format_draw(ctx, gc, menu->width, name, NULL);
647: gc = &default_gc;
1.152 nicm 648: }
649: }
1.125 nicm 650:
1.144 nicm 651: screen_write_set_cursor(ctx, cx, cy);
1.125 nicm 652: }
653:
654: /* Draw a box on screen. */
655: void
656: screen_write_box(struct screen_write_ctx *ctx, u_int nx, u_int ny)
657: {
658: struct screen *s = ctx->s;
659: struct grid_cell gc;
660: u_int cx, cy, i;
661:
662: cx = s->cx;
663: cy = s->cy;
664:
665: memcpy(&gc, &grid_default_cell, sizeof gc);
666: gc.attr |= GRID_ATTR_CHARSET;
667:
668: screen_write_putc(ctx, &gc, 'l');
669: for (i = 1; i < nx - 1; i++)
670: screen_write_putc(ctx, &gc, 'q');
671: screen_write_putc(ctx, &gc, 'k');
672:
1.144 nicm 673: screen_write_set_cursor(ctx, cx, cy + ny - 1);
1.125 nicm 674: screen_write_putc(ctx, &gc, 'm');
675: for (i = 1; i < nx - 1; i++)
676: screen_write_putc(ctx, &gc, 'q');
677: screen_write_putc(ctx, &gc, 'j');
678:
679: for (i = 1; i < ny - 1; i++) {
1.144 nicm 680: screen_write_set_cursor(ctx, cx, cy + i);
1.125 nicm 681: screen_write_putc(ctx, &gc, 'x');
682: }
683: for (i = 1; i < ny - 1; i++) {
1.144 nicm 684: screen_write_set_cursor(ctx, cx + nx - 1, cy + i);
1.125 nicm 685: screen_write_putc(ctx, &gc, 'x');
686: }
687:
1.144 nicm 688: screen_write_set_cursor(ctx, cx, cy);
1.125 nicm 689: }
690:
1.132 nicm 691: /*
692: * Write a preview version of a window. Assumes target area is big enough and
693: * already cleared.
694: */
1.125 nicm 695: void
696: screen_write_preview(struct screen_write_ctx *ctx, struct screen *src, u_int nx,
697: u_int ny)
698: {
699: struct screen *s = ctx->s;
700: struct grid_cell gc;
701: u_int cx, cy, px, py;
702:
703: cx = s->cx;
704: cy = s->cy;
705:
706: /*
707: * If the cursor is on, pick the area around the cursor, otherwise use
708: * the top left.
709: */
710: if (src->mode & MODE_CURSOR) {
711: px = src->cx;
712: if (px < nx / 3)
713: px = 0;
714: else
715: px = px - nx / 3;
716: if (px + nx > screen_size_x(src)) {
717: if (nx > screen_size_x(src))
718: px = 0;
719: else
720: px = screen_size_x(src) - nx;
721: }
722: py = src->cy;
723: if (py < ny / 3)
724: py = 0;
725: else
726: py = py - ny / 3;
727: if (py + ny > screen_size_y(src)) {
728: if (ny > screen_size_y(src))
729: py = 0;
730: else
731: py = screen_size_y(src) - ny;
732: }
733: } else {
734: px = 0;
735: py = 0;
736: }
737:
1.132 nicm 738: screen_write_fast_copy(ctx, src, px, src->grid->hsize + py, nx, ny);
1.125 nicm 739:
740: if (src->mode & MODE_CURSOR) {
741: grid_view_get_cell(src->grid, src->cx, src->cy, &gc);
742: gc.attr |= GRID_ATTR_REVERSE;
1.144 nicm 743: screen_write_set_cursor(ctx, cx + (src->cx - px),
1.125 nicm 744: cy + (src->cy - py));
745: screen_write_cell(ctx, &gc);
1.1 nicm 746: }
747: }
748:
1.61 nicm 749: /* Set a mode. */
750: void
751: screen_write_mode_set(struct screen_write_ctx *ctx, int mode)
752: {
753: struct screen *s = ctx->s;
754:
755: s->mode |= mode;
756: }
757:
758: /* Clear a mode. */
759: void
760: screen_write_mode_clear(struct screen_write_ctx *ctx, int mode)
761: {
762: struct screen *s = ctx->s;
763:
764: s->mode &= ~mode;
765: }
766:
1.1 nicm 767: /* Cursor up by ny. */
768: void
769: screen_write_cursorup(struct screen_write_ctx *ctx, u_int ny)
770: {
771: struct screen *s = ctx->s;
1.139 nicm 772: u_int cx = s->cx, cy = s->cy;
1.1 nicm 773:
774: if (ny == 0)
775: ny = 1;
776:
1.139 nicm 777: if (cy < s->rupper) {
1.12 nicm 778: /* Above region. */
1.139 nicm 779: if (ny > cy)
780: ny = cy;
1.12 nicm 781: } else {
782: /* Below region. */
1.139 nicm 783: if (ny > cy - s->rupper)
784: ny = cy - s->rupper;
1.12 nicm 785: }
1.139 nicm 786: if (cx == screen_size_x(s))
787: cx--;
788:
789: cy -= ny;
1.1 nicm 790:
1.139 nicm 791: screen_write_set_cursor(ctx, cx, cy);
1.1 nicm 792: }
793:
794: /* Cursor down by ny. */
795: void
796: screen_write_cursordown(struct screen_write_ctx *ctx, u_int ny)
797: {
798: struct screen *s = ctx->s;
1.139 nicm 799: u_int cx = s->cx, cy = s->cy;
1.1 nicm 800:
801: if (ny == 0)
802: ny = 1;
803:
1.139 nicm 804: if (cy > s->rlower) {
1.12 nicm 805: /* Below region. */
1.139 nicm 806: if (ny > screen_size_y(s) - 1 - cy)
807: ny = screen_size_y(s) - 1 - cy;
1.12 nicm 808: } else {
809: /* Above region. */
1.139 nicm 810: if (ny > s->rlower - cy)
811: ny = s->rlower - cy;
1.12 nicm 812: }
1.139 nicm 813: if (cx == screen_size_x(s))
814: cx--;
815: else if (ny == 0)
1.1 nicm 816: return;
817:
1.139 nicm 818: cy += ny;
819:
820: screen_write_set_cursor(ctx, cx, cy);
1.1 nicm 821: }
822:
1.101 nicm 823: /* Cursor right by nx. */
1.1 nicm 824: void
825: screen_write_cursorright(struct screen_write_ctx *ctx, u_int nx)
826: {
827: struct screen *s = ctx->s;
1.139 nicm 828: u_int cx = s->cx, cy = s->cy;
1.1 nicm 829:
830: if (nx == 0)
831: nx = 1;
832:
1.139 nicm 833: if (nx > screen_size_x(s) - 1 - cx)
834: nx = screen_size_x(s) - 1 - cx;
1.1 nicm 835: if (nx == 0)
836: return;
837:
1.139 nicm 838: cx += nx;
839:
840: screen_write_set_cursor(ctx, cx, cy);
1.1 nicm 841: }
842:
843: /* Cursor left by nx. */
844: void
845: screen_write_cursorleft(struct screen_write_ctx *ctx, u_int nx)
846: {
847: struct screen *s = ctx->s;
1.139 nicm 848: u_int cx = s->cx, cy = s->cy;
1.1 nicm 849:
850: if (nx == 0)
851: nx = 1;
852:
1.139 nicm 853: if (nx > cx)
854: nx = cx;
1.1 nicm 855: if (nx == 0)
856: return;
857:
1.139 nicm 858: cx -= nx;
859:
860: screen_write_set_cursor(ctx, cx, cy);
1.5 nicm 861: }
862:
1.29 nicm 863: /* Backspace; cursor left unless at start of wrapped line when can move up. */
864: void
865: screen_write_backspace(struct screen_write_ctx *ctx)
866: {
867: struct screen *s = ctx->s;
868: struct grid_line *gl;
1.139 nicm 869: u_int cx = s->cx, cy = s->cy;
1.29 nicm 870:
1.139 nicm 871: if (cx == 0) {
872: if (cy == 0)
1.29 nicm 873: return;
1.139 nicm 874: gl = grid_get_line(s->grid, s->grid->hsize + cy - 1);
1.29 nicm 875: if (gl->flags & GRID_LINE_WRAPPED) {
1.139 nicm 876: cy--;
877: cx = screen_size_x(s) - 1;
1.29 nicm 878: }
879: } else
1.139 nicm 880: cx--;
881:
882: screen_write_set_cursor(ctx, cx, cy);
1.29 nicm 883: }
884:
1.5 nicm 885: /* VT100 alignment test. */
886: void
887: screen_write_alignmenttest(struct screen_write_ctx *ctx)
888: {
889: struct screen *s = ctx->s;
1.17 nicm 890: struct tty_ctx ttyctx;
1.5 nicm 891: struct grid_cell gc;
892: u_int xx, yy;
893:
894: memcpy(&gc, &grid_default_cell, sizeof gc);
1.77 nicm 895: utf8_set(&gc.data, 'E');
1.7 ray 896:
1.5 nicm 897: for (yy = 0; yy < screen_size_y(s); yy++) {
898: for (xx = 0; xx < screen_size_x(s); xx++)
899: grid_view_set_cell(s->grid, xx, yy, &gc);
900: }
1.7 ray 901:
1.139 nicm 902: screen_write_set_cursor(ctx, 0, 0);
1.5 nicm 903:
904: s->rupper = 0;
905: s->rlower = screen_size_y(s) - 1;
1.143 nicm 906:
1.163 nicm 907: screen_write_initctx(ctx, &ttyctx, 1);
1.5 nicm 908:
1.109 nicm 909: screen_write_collect_clear(ctx, 0, screen_size_y(s) - 1);
1.17 nicm 910: tty_write(tty_cmd_alignmenttest, &ttyctx);
1.1 nicm 911: }
912:
913: /* Insert nx characters. */
914: void
1.99 nicm 915: screen_write_insertcharacter(struct screen_write_ctx *ctx, u_int nx, u_int bg)
1.1 nicm 916: {
917: struct screen *s = ctx->s;
1.17 nicm 918: struct tty_ctx ttyctx;
1.1 nicm 919:
920: if (nx == 0)
921: nx = 1;
922:
1.9 nicm 923: if (nx > screen_size_x(s) - s->cx)
924: nx = screen_size_x(s) - s->cx;
1.1 nicm 925: if (nx == 0)
926: return;
927:
1.107 nicm 928: if (s->cx > screen_size_x(s) - 1)
929: return;
930:
1.163 nicm 931: screen_write_initctx(ctx, &ttyctx, 0);
1.107 nicm 932: ttyctx.bg = bg;
1.1 nicm 933:
1.107 nicm 934: grid_view_insert_cells(s->grid, s->cx, s->cy, nx, bg);
1.1 nicm 935:
1.164 nicm 936: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 937: ttyctx.num = nx;
938: tty_write(tty_cmd_insertcharacter, &ttyctx);
1.1 nicm 939: }
940:
941: /* Delete nx characters. */
942: void
1.99 nicm 943: screen_write_deletecharacter(struct screen_write_ctx *ctx, u_int nx, u_int bg)
1.1 nicm 944: {
945: struct screen *s = ctx->s;
1.17 nicm 946: struct tty_ctx ttyctx;
1.1 nicm 947:
948: if (nx == 0)
949: nx = 1;
950:
1.9 nicm 951: if (nx > screen_size_x(s) - s->cx)
952: nx = screen_size_x(s) - s->cx;
1.1 nicm 953: if (nx == 0)
954: return;
955:
1.107 nicm 956: if (s->cx > screen_size_x(s) - 1)
957: return;
958:
1.163 nicm 959: screen_write_initctx(ctx, &ttyctx, 0);
1.107 nicm 960: ttyctx.bg = bg;
1.1 nicm 961:
1.107 nicm 962: grid_view_delete_cells(s->grid, s->cx, s->cy, nx, bg);
1.1 nicm 963:
1.164 nicm 964: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 965: ttyctx.num = nx;
966: tty_write(tty_cmd_deletecharacter, &ttyctx);
1.59 nicm 967: }
968:
969: /* Clear nx characters. */
970: void
1.121 nicm 971: screen_write_clearcharacter(struct screen_write_ctx *ctx, u_int nx, u_int bg)
1.59 nicm 972: {
973: struct screen *s = ctx->s;
974: struct tty_ctx ttyctx;
975:
976: if (nx == 0)
977: nx = 1;
978:
979: if (nx > screen_size_x(s) - s->cx)
980: nx = screen_size_x(s) - s->cx;
981: if (nx == 0)
982: return;
983:
1.107 nicm 984: if (s->cx > screen_size_x(s) - 1)
985: return;
986:
1.163 nicm 987: screen_write_initctx(ctx, &ttyctx, 0);
1.121 nicm 988: ttyctx.bg = bg;
1.59 nicm 989:
1.124 nicm 990: grid_view_clear(s->grid, s->cx, s->cy, nx, 1, bg);
1.59 nicm 991:
1.164 nicm 992: screen_write_collect_flush(ctx, 0, __func__);
1.59 nicm 993: ttyctx.num = nx;
994: tty_write(tty_cmd_clearcharacter, &ttyctx);
1.1 nicm 995: }
996:
997: /* Insert ny lines. */
998: void
1.99 nicm 999: screen_write_insertline(struct screen_write_ctx *ctx, u_int ny, u_int bg)
1.1 nicm 1000: {
1001: struct screen *s = ctx->s;
1.107 nicm 1002: struct grid *gd = s->grid;
1.17 nicm 1003: struct tty_ctx ttyctx;
1.1 nicm 1004:
1005: if (ny == 0)
1006: ny = 1;
1007:
1.11 nicm 1008: if (s->cy < s->rupper || s->cy > s->rlower) {
1009: if (ny > screen_size_y(s) - s->cy)
1010: ny = screen_size_y(s) - s->cy;
1011: if (ny == 0)
1012: return;
1013:
1.163 nicm 1014: screen_write_initctx(ctx, &ttyctx, 1);
1.107 nicm 1015: ttyctx.bg = bg;
1.11 nicm 1016:
1.107 nicm 1017: grid_view_insert_lines(gd, s->cy, ny, bg);
1.11 nicm 1018:
1.164 nicm 1019: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 1020: ttyctx.num = ny;
1021: tty_write(tty_cmd_insertline, &ttyctx);
1.11 nicm 1022: return;
1023: }
1024:
1025: if (ny > s->rlower + 1 - s->cy)
1026: ny = s->rlower + 1 - s->cy;
1.1 nicm 1027: if (ny == 0)
1028: return;
1.41 nicm 1029:
1.163 nicm 1030: screen_write_initctx(ctx, &ttyctx, 1);
1.107 nicm 1031: ttyctx.bg = bg;
1.1 nicm 1032:
1033: if (s->cy < s->rupper || s->cy > s->rlower)
1.107 nicm 1034: grid_view_insert_lines(gd, s->cy, ny, bg);
1035: else
1036: grid_view_insert_lines_region(gd, s->rlower, s->cy, ny, bg);
1.1 nicm 1037:
1.164 nicm 1038: screen_write_collect_flush(ctx, 0, __func__);
1039:
1.17 nicm 1040: ttyctx.num = ny;
1041: tty_write(tty_cmd_insertline, &ttyctx);
1.1 nicm 1042: }
1043:
1044: /* Delete ny lines. */
1045: void
1.99 nicm 1046: screen_write_deleteline(struct screen_write_ctx *ctx, u_int ny, u_int bg)
1.1 nicm 1047: {
1048: struct screen *s = ctx->s;
1.107 nicm 1049: struct grid *gd = s->grid;
1.17 nicm 1050: struct tty_ctx ttyctx;
1.1 nicm 1051:
1052: if (ny == 0)
1053: ny = 1;
1054:
1.11 nicm 1055: if (s->cy < s->rupper || s->cy > s->rlower) {
1056: if (ny > screen_size_y(s) - s->cy)
1057: ny = screen_size_y(s) - s->cy;
1058: if (ny == 0)
1059: return;
1060:
1.163 nicm 1061: screen_write_initctx(ctx, &ttyctx, 1);
1.107 nicm 1062: ttyctx.bg = bg;
1.11 nicm 1063:
1.107 nicm 1064: grid_view_delete_lines(gd, s->cy, ny, bg);
1.11 nicm 1065:
1.164 nicm 1066: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 1067: ttyctx.num = ny;
1068: tty_write(tty_cmd_deleteline, &ttyctx);
1.11 nicm 1069: return;
1070: }
1.41 nicm 1071:
1.11 nicm 1072: if (ny > s->rlower + 1 - s->cy)
1073: ny = s->rlower + 1 - s->cy;
1.1 nicm 1074: if (ny == 0)
1075: return;
1076:
1.163 nicm 1077: screen_write_initctx(ctx, &ttyctx, 1);
1.107 nicm 1078: ttyctx.bg = bg;
1.1 nicm 1079:
1080: if (s->cy < s->rupper || s->cy > s->rlower)
1.107 nicm 1081: grid_view_delete_lines(gd, s->cy, ny, bg);
1082: else
1083: grid_view_delete_lines_region(gd, s->rlower, s->cy, ny, bg);
1.1 nicm 1084:
1.164 nicm 1085: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 1086: ttyctx.num = ny;
1087: tty_write(tty_cmd_deleteline, &ttyctx);
1.1 nicm 1088: }
1089:
1090: /* Clear line at cursor. */
1091: void
1.99 nicm 1092: screen_write_clearline(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1093: {
1.168 nicm 1094: struct screen *s = ctx->s;
1095: struct grid_line *gl;
1096: u_int sx = screen_size_x(s);
1.1 nicm 1097:
1.137 nicm 1098: gl = grid_get_line(s->grid, s->grid->hsize + s->cy);
1.140 nicm 1099: if (gl->cellsize == 0 && COLOUR_DEFAULT(bg))
1.92 nicm 1100: return;
1.1 nicm 1101:
1.99 nicm 1102: grid_view_clear(s->grid, 0, s->cy, sx, 1, bg);
1103:
1.109 nicm 1104: screen_write_collect_clear(ctx, s->cy, 1);
1.172 nicm 1105: ctx->s->write_list[s->cy].bg = 1 + bg;
1.168 nicm 1106: ctx->item->used = 0;
1.1 nicm 1107: }
1108:
1109: /* Clear to end of line from cursor. */
1110: void
1.99 nicm 1111: screen_write_clearendofline(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1112: {
1.165 nicm 1113: struct screen *s = ctx->s;
1114: struct grid_line *gl;
1115: u_int sx = screen_size_x(s);
1116: struct screen_write_collect_item *ci = ctx->item;
1117:
1118: if (s->cx == 0) {
1119: screen_write_clearline(ctx, bg);
1120: return;
1121: }
1.1 nicm 1122:
1.137 nicm 1123: gl = grid_get_line(s->grid, s->grid->hsize + s->cy);
1.140 nicm 1124: if (s->cx > sx - 1 || (s->cx >= gl->cellsize && COLOUR_DEFAULT(bg)))
1.92 nicm 1125: return;
1.108 nicm 1126:
1.99 nicm 1127: grid_view_clear(s->grid, s->cx, s->cy, sx - s->cx, 1, bg);
1128:
1.165 nicm 1129: if (!screen_write_collect_clear_end(ctx, s->cy, s->cx, bg)) {
1130: ci->x = s->cx;
1131: ci->type = CLEAR_END;
1132: ci->bg = bg;
1.172 nicm 1133: TAILQ_INSERT_TAIL(&ctx->s->write_list[s->cy].items, ci, entry);
1.165 nicm 1134: ctx->item = xcalloc(1, sizeof *ctx->item);
1135: }
1.1 nicm 1136: }
1137:
1138: /* Clear to start of line from cursor. */
1139: void
1.99 nicm 1140: screen_write_clearstartofline(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1141: {
1.165 nicm 1142: struct screen *s = ctx->s;
1143: u_int sx = screen_size_x(s);
1144: struct screen_write_collect_item *ci = ctx->item;
1145:
1146: if (s->cx >= sx - 1) {
1147: screen_write_clearline(ctx, bg);
1148: return;
1149: }
1.1 nicm 1150:
1.109 nicm 1151: if (s->cx > sx - 1)
1.99 nicm 1152: grid_view_clear(s->grid, 0, s->cy, sx, 1, bg);
1.109 nicm 1153: else
1.99 nicm 1154: grid_view_clear(s->grid, 0, s->cy, s->cx + 1, 1, bg);
1.1 nicm 1155:
1.165 nicm 1156: if (!screen_write_collect_clear_start(ctx, s->cy, s->cx, bg)) {
1157: ci->x = s->cx;
1158: ci->type = CLEAR_START;
1159: ci->bg = bg;
1.172 nicm 1160: TAILQ_INSERT_TAIL(&ctx->s->write_list[s->cy].items, ci, entry);
1.165 nicm 1161: ctx->item = xcalloc(1, sizeof *ctx->item);
1162: }
1.1 nicm 1163: }
1164:
1.101 nicm 1165: /* Move cursor to px,py. */
1.1 nicm 1166: void
1.147 nicm 1167: screen_write_cursormove(struct screen_write_ctx *ctx, int px, int py,
1168: int origin)
1.1 nicm 1169: {
1170: struct screen *s = ctx->s;
1171:
1.147 nicm 1172: if (origin && py != -1 && (s->mode & MODE_ORIGIN)) {
1.146 nicm 1173: if ((u_int)py > s->rlower - s->rupper)
1.144 nicm 1174: py = s->rlower;
1175: else
1176: py += s->rupper;
1177: }
1.145 nicm 1178:
1.146 nicm 1179: if (px != -1 && (u_int)px > screen_size_x(s) - 1)
1.145 nicm 1180: px = screen_size_x(s) - 1;
1.146 nicm 1181: if (py != -1 && (u_int)py > screen_size_y(s) - 1)
1.145 nicm 1182: py = screen_size_y(s) - 1;
1.1 nicm 1183:
1.139 nicm 1184: screen_write_set_cursor(ctx, px, py);
1.1 nicm 1185: }
1186:
1.101 nicm 1187: /* Reverse index (up with scroll). */
1.1 nicm 1188: void
1.122 nicm 1189: screen_write_reverseindex(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1190: {
1191: struct screen *s = ctx->s;
1.17 nicm 1192: struct tty_ctx ttyctx;
1.1 nicm 1193:
1.165 nicm 1194: if (s->cy == s->rupper) {
1195: grid_view_scroll_region_down(s->grid, s->rupper, s->rlower, bg);
1196: screen_write_collect_flush(ctx, 0, __func__);
1197:
1198: screen_write_initctx(ctx, &ttyctx, 1);
1199: ttyctx.bg = bg;
1.1 nicm 1200:
1.165 nicm 1201: tty_write(tty_cmd_reverseindex, &ttyctx);
1202: } else if (s->cy > 0)
1.139 nicm 1203: screen_write_set_cursor(ctx, -1, s->cy - 1);
1.1 nicm 1204:
1205: }
1206:
1207: /* Set scroll region. */
1208: void
1.83 nicm 1209: screen_write_scrollregion(struct screen_write_ctx *ctx, u_int rupper,
1210: u_int rlower)
1.1 nicm 1211: {
1212: struct screen *s = ctx->s;
1213:
1214: if (rupper > screen_size_y(s) - 1)
1215: rupper = screen_size_y(s) - 1;
1216: if (rlower > screen_size_y(s) - 1)
1217: rlower = screen_size_y(s) - 1;
1.13 nicm 1218: if (rupper >= rlower) /* cannot be one line */
1.1 nicm 1219: return;
1220:
1.164 nicm 1221: screen_write_collect_flush(ctx, 0, __func__);
1.110 nicm 1222:
1.1 nicm 1223: /* Cursor moves to top-left. */
1.139 nicm 1224: screen_write_set_cursor(ctx, 0, 0);
1.1 nicm 1225:
1226: s->rupper = rupper;
1227: s->rlower = rlower;
1228: }
1229:
1.34 nicm 1230: /* Line feed. */
1.1 nicm 1231: void
1.122 nicm 1232: screen_write_linefeed(struct screen_write_ctx *ctx, int wrapped, u_int bg)
1.1 nicm 1233: {
1.20 nicm 1234: struct screen *s = ctx->s;
1.109 nicm 1235: struct grid *gd = s->grid;
1.20 nicm 1236: struct grid_line *gl;
1.1 nicm 1237:
1.137 nicm 1238: gl = grid_get_line(gd, gd->hsize + s->cy);
1.20 nicm 1239: if (wrapped)
1240: gl->flags |= GRID_LINE_WRAPPED;
1.73 nicm 1241: else
1242: gl->flags &= ~GRID_LINE_WRAPPED;
1.20 nicm 1243:
1.114 nicm 1244: log_debug("%s: at %u,%u (region %u-%u)", __func__, s->cx, s->cy,
1245: s->rupper, s->rlower);
1246:
1.122 nicm 1247: if (bg != ctx->bg) {
1.164 nicm 1248: screen_write_collect_flush(ctx, 1, __func__);
1.122 nicm 1249: ctx->bg = bg;
1250: }
1251:
1.92 nicm 1252: if (s->cy == s->rlower) {
1.122 nicm 1253: grid_view_scroll_region_up(gd, s->rupper, s->rlower, bg);
1.109 nicm 1254: screen_write_collect_scroll(ctx);
1.110 nicm 1255: ctx->scrolled++;
1.109 nicm 1256: } else if (s->cy < screen_size_y(s) - 1)
1.139 nicm 1257: screen_write_set_cursor(ctx, -1, s->cy + 1);
1.1 nicm 1258: }
1259:
1.110 nicm 1260: /* Scroll up. */
1261: void
1.122 nicm 1262: screen_write_scrollup(struct screen_write_ctx *ctx, u_int lines, u_int bg)
1.110 nicm 1263: {
1264: struct screen *s = ctx->s;
1265: struct grid *gd = s->grid;
1266: u_int i;
1267:
1268: if (lines == 0)
1269: lines = 1;
1270: else if (lines > s->rlower - s->rupper + 1)
1271: lines = s->rlower - s->rupper + 1;
1272:
1.122 nicm 1273: if (bg != ctx->bg) {
1.164 nicm 1274: screen_write_collect_flush(ctx, 1, __func__);
1.122 nicm 1275: ctx->bg = bg;
1276: }
1277:
1.110 nicm 1278: for (i = 0; i < lines; i++) {
1.122 nicm 1279: grid_view_scroll_region_up(gd, s->rupper, s->rlower, bg);
1.110 nicm 1280: screen_write_collect_scroll(ctx);
1281: }
1282: ctx->scrolled += lines;
1.157 nicm 1283: }
1284:
1285: /* Scroll down. */
1286: void
1287: screen_write_scrolldown(struct screen_write_ctx *ctx, u_int lines, u_int bg)
1288: {
1289: struct screen *s = ctx->s;
1290: struct grid *gd = s->grid;
1291: struct tty_ctx ttyctx;
1292: u_int i;
1293:
1.163 nicm 1294: screen_write_initctx(ctx, &ttyctx, 1);
1.157 nicm 1295: ttyctx.bg = bg;
1296:
1297: if (lines == 0)
1298: lines = 1;
1299: else if (lines > s->rlower - s->rupper + 1)
1300: lines = s->rlower - s->rupper + 1;
1301:
1302: for (i = 0; i < lines; i++)
1303: grid_view_scroll_region_down(gd, s->rupper, s->rlower, bg);
1304:
1.164 nicm 1305: screen_write_collect_flush(ctx, 0, __func__);
1.157 nicm 1306: ttyctx.num = lines;
1307: tty_write(tty_cmd_scrolldown, &ttyctx);
1.110 nicm 1308: }
1309:
1.1 nicm 1310: /* Carriage return (cursor to start of line). */
1311: void
1312: screen_write_carriagereturn(struct screen_write_ctx *ctx)
1313: {
1.139 nicm 1314: screen_write_set_cursor(ctx, 0, -1);
1.1 nicm 1315: }
1316:
1317: /* Clear to end of screen from cursor. */
1318: void
1.99 nicm 1319: screen_write_clearendofscreen(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1320: {
1321: struct screen *s = ctx->s;
1.107 nicm 1322: struct grid *gd = s->grid;
1.17 nicm 1323: struct tty_ctx ttyctx;
1.92 nicm 1324: u_int sx = screen_size_x(s), sy = screen_size_y(s);
1.1 nicm 1325:
1.163 nicm 1326: screen_write_initctx(ctx, &ttyctx, 1);
1.99 nicm 1327: ttyctx.bg = bg;
1.1 nicm 1328:
1.46 nicm 1329: /* Scroll into history if it is enabled and clearing entire screen. */
1.109 nicm 1330: if (s->cx == 0 && s->cy == 0 && (gd->flags & GRID_HISTORY))
1.107 nicm 1331: grid_view_clear_history(gd, bg);
1.109 nicm 1332: else {
1333: if (s->cx <= sx - 1)
1.107 nicm 1334: grid_view_clear(gd, s->cx, s->cy, sx - s->cx, 1, bg);
1335: grid_view_clear(gd, 0, s->cy + 1, sx, sy - (s->cy + 1), bg);
1.46 nicm 1336: }
1.1 nicm 1337:
1.109 nicm 1338: screen_write_collect_clear(ctx, s->cy + 1, sy - (s->cy + 1));
1.164 nicm 1339: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 1340: tty_write(tty_cmd_clearendofscreen, &ttyctx);
1.1 nicm 1341: }
1342:
1343: /* Clear to start of screen. */
1344: void
1.105 nicm 1345: screen_write_clearstartofscreen(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1346: {
1347: struct screen *s = ctx->s;
1.17 nicm 1348: struct tty_ctx ttyctx;
1.92 nicm 1349: u_int sx = screen_size_x(s);
1.1 nicm 1350:
1.163 nicm 1351: screen_write_initctx(ctx, &ttyctx, 1);
1.105 nicm 1352: ttyctx.bg = bg;
1.1 nicm 1353:
1.109 nicm 1354: if (s->cy > 0)
1.105 nicm 1355: grid_view_clear(s->grid, 0, 0, sx, s->cy, bg);
1.109 nicm 1356: if (s->cx > sx - 1)
1.120 nicm 1357: grid_view_clear(s->grid, 0, s->cy, sx, 1, bg);
1.109 nicm 1358: else
1.120 nicm 1359: grid_view_clear(s->grid, 0, s->cy, s->cx + 1, 1, bg);
1.1 nicm 1360:
1.109 nicm 1361: screen_write_collect_clear(ctx, 0, s->cy);
1.164 nicm 1362: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 1363: tty_write(tty_cmd_clearstartofscreen, &ttyctx);
1.1 nicm 1364: }
1365:
1366: /* Clear entire screen. */
1367: void
1.99 nicm 1368: screen_write_clearscreen(struct screen_write_ctx *ctx, u_int bg)
1.1 nicm 1369: {
1370: struct screen *s = ctx->s;
1.17 nicm 1371: struct tty_ctx ttyctx;
1.92 nicm 1372: u_int sx = screen_size_x(s), sy = screen_size_y(s);
1.1 nicm 1373:
1.163 nicm 1374: screen_write_initctx(ctx, &ttyctx, 1);
1.99 nicm 1375: ttyctx.bg = bg;
1.1 nicm 1376:
1.46 nicm 1377: /* Scroll into history if it is enabled. */
1378: if (s->grid->flags & GRID_HISTORY)
1.99 nicm 1379: grid_view_clear_history(s->grid, bg);
1.83 nicm 1380: else
1.99 nicm 1381: grid_view_clear(s->grid, 0, 0, sx, sy, bg);
1.1 nicm 1382:
1.109 nicm 1383: screen_write_collect_clear(ctx, 0, sy);
1.17 nicm 1384: tty_write(tty_cmd_clearscreen, &ttyctx);
1.51 nicm 1385: }
1386:
1387: /* Clear entire history. */
1388: void
1389: screen_write_clearhistory(struct screen_write_ctx *ctx)
1390: {
1.156 nicm 1391: grid_clear_history(ctx->s->grid);
1.1 nicm 1392: }
1393:
1.165 nicm 1394: /* Clear to start of a collected line. */
1395: static int
1396: screen_write_collect_clear_start(struct screen_write_ctx *ctx, u_int y, u_int x,
1397: u_int bg)
1398: {
1399: struct screen_write_collect_item *ci, *tmp;
1400: size_t size = 0;
1401: u_int items = 0;
1402: int redundant = 0;
1403:
1.172 nicm 1404: if (TAILQ_EMPTY(&ctx->s->write_list[y].items))
1.165 nicm 1405: return (0);
1.172 nicm 1406: TAILQ_FOREACH_SAFE(ci, &ctx->s->write_list[y].items, entry, tmp) {
1.165 nicm 1407: switch (ci->type) {
1408: case CLEAR_START:
1409: if (ci->x >= x) {
1410: if (ci->bg == bg)
1411: redundant = 1;
1412: continue;
1413: }
1414: break;
1415: case CLEAR_END:
1416: if (ci->x <= x)
1417: ci->x = x;
1418: continue;
1419: case TEXT:
1420: if (ci->x > x)
1421: continue;
1422: break;
1423: }
1424: items++;
1425: size += ci->used;
1.172 nicm 1426: TAILQ_REMOVE(&ctx->s->write_list[y].items, ci, entry);
1.165 nicm 1427: free(ci);
1428: }
1429: ctx->skipped += size;
1430: log_debug("%s: dropped %u items (%zu bytes) (line %u)", __func__, items,
1431: size, y);
1432: return (redundant);
1433: }
1434:
1435: /* Clear to end of a collected line. */
1436: static int
1437: screen_write_collect_clear_end(struct screen_write_ctx *ctx, u_int y, u_int x,
1438: u_int bg)
1439: {
1440: struct screen_write_collect_item *ci, *tmp;
1441: size_t size = 0;
1442: int redundant = 0;
1443: u_int items = 0;
1444:
1.172 nicm 1445: if (TAILQ_EMPTY(&ctx->s->write_list[y].items))
1.165 nicm 1446: return (0);
1.172 nicm 1447: TAILQ_FOREACH_SAFE(ci, &ctx->s->write_list[y].items, entry, tmp) {
1.165 nicm 1448: switch (ci->type) {
1449: case CLEAR_START:
1450: if (ci->x >= x)
1451: ci->x = x;
1452: continue;
1453: case CLEAR_END:
1454: if (ci->x <= x) {
1455: if (ci->bg == bg)
1456: redundant = 1;
1457: continue;
1458: }
1459: break;
1460: case TEXT:
1461: if (ci->x < x)
1462: continue;
1463: break;
1464: }
1465: items++;
1466: size += ci->used;
1.172 nicm 1467: TAILQ_REMOVE(&ctx->s->write_list[y].items, ci, entry);
1.165 nicm 1468: free(ci);
1469: }
1470: ctx->skipped += size;
1471: log_debug("%s: dropped %u items (%zu bytes) (line %u)", __func__, items,
1472: size, y);
1473: return (redundant);
1474: }
1475:
1.170 nicm 1476: /* Clear collected lines. */
1.109 nicm 1477: static void
1478: screen_write_collect_clear(struct screen_write_ctx *ctx, u_int y, u_int n)
1479: {
1480: struct screen_write_collect_item *ci, *tmp;
1.172 nicm 1481: struct screen_write_collect_line *cl;
1.165 nicm 1482: u_int i, items;
1.109 nicm 1483: size_t size;
1484:
1.151 nicm 1485: for (i = y; i < y + n; i++) {
1.172 nicm 1486: if (TAILQ_EMPTY(&ctx->s->write_list[i].items))
1.109 nicm 1487: continue;
1.165 nicm 1488: items = 0;
1.109 nicm 1489: size = 0;
1.172 nicm 1490: cl = &ctx->s->write_list[i];
1491: TAILQ_FOREACH_SAFE(ci, &cl->items, entry, tmp) {
1.165 nicm 1492: items++;
1.109 nicm 1493: size += ci->used;
1.172 nicm 1494: TAILQ_REMOVE(&cl->items, ci, entry);
1.109 nicm 1495: free(ci);
1496: }
1497: ctx->skipped += size;
1.165 nicm 1498: log_debug("%s: dropped %u items (%zu bytes) (line %u)",
1499: __func__, items, size, y);
1.109 nicm 1500: }
1501: }
1502:
1503: /* Scroll collected lines up. */
1504: static void
1505: screen_write_collect_scroll(struct screen_write_ctx *ctx)
1506: {
1507: struct screen *s = ctx->s;
1508: struct screen_write_collect_line *cl;
1509: u_int y;
1.170 nicm 1510: char *saved;
1.109 nicm 1511:
1.114 nicm 1512: log_debug("%s: at %u,%u (region %u-%u)", __func__, s->cx, s->cy,
1513: s->rupper, s->rlower);
1514:
1.109 nicm 1515: screen_write_collect_clear(ctx, s->rupper, 1);
1.172 nicm 1516: saved = ctx->s->write_list[s->rupper].data;
1.109 nicm 1517: for (y = s->rupper; y < s->rlower; y++) {
1.172 nicm 1518: cl = &ctx->s->write_list[y + 1];
1519: TAILQ_CONCAT(&ctx->s->write_list[y].items, &cl->items, entry);
1.175 nicm 1520: ctx->s->write_list[y].bg = cl->bg;
1.172 nicm 1521: ctx->s->write_list[y].data = cl->data;
1.109 nicm 1522: }
1.175 nicm 1523: ctx->s->write_list[s->rlower].bg = 1 + 8;
1.172 nicm 1524: ctx->s->write_list[s->rlower].data = saved;
1.109 nicm 1525: }
1526:
1527: /* Flush collected lines. */
1528: static void
1.164 nicm 1529: screen_write_collect_flush(struct screen_write_ctx *ctx, int scroll_only,
1530: const char *from)
1.109 nicm 1531: {
1532: struct screen *s = ctx->s;
1533: struct screen_write_collect_item *ci, *tmp;
1.172 nicm 1534: struct screen_write_collect_line *cl;
1.116 nicm 1535: u_int y, cx, cy, items = 0;
1.109 nicm 1536: struct tty_ctx ttyctx;
1.116 nicm 1537: size_t written = 0;
1.110 nicm 1538:
1539: if (ctx->scrolled != 0) {
1540: log_debug("%s: scrolled %u (region %u-%u)", __func__,
1541: ctx->scrolled, s->rupper, s->rlower);
1542: if (ctx->scrolled > s->rlower - s->rupper + 1)
1543: ctx->scrolled = s->rlower - s->rupper + 1;
1544:
1.163 nicm 1545: screen_write_initctx(ctx, &ttyctx, 1);
1.110 nicm 1546: ttyctx.num = ctx->scrolled;
1.122 nicm 1547: ttyctx.bg = ctx->bg;
1.110 nicm 1548: tty_write(tty_cmd_scrollup, &ttyctx);
1549: }
1550: ctx->scrolled = 0;
1.122 nicm 1551: ctx->bg = 8;
1552:
1.111 nicm 1553: if (scroll_only)
1554: return;
1.109 nicm 1555:
1556: cx = s->cx; cy = s->cy;
1557: for (y = 0; y < screen_size_y(s); y++) {
1.172 nicm 1558: cl = &ctx->s->write_list[y];
1559: if (cl->bg != 0) {
1.168 nicm 1560: screen_write_set_cursor(ctx, 0, y);
1561: screen_write_initctx(ctx, &ttyctx, 1);
1.172 nicm 1562: ttyctx.bg = cl->bg - 1;
1.168 nicm 1563: tty_write(tty_cmd_clearline, &ttyctx);
1564: }
1.172 nicm 1565: TAILQ_FOREACH_SAFE(ci, &cl->items, entry, tmp) {
1.144 nicm 1566: screen_write_set_cursor(ctx, ci->x, y);
1.168 nicm 1567: if (ci->type == CLEAR_END) {
1.167 nicm 1568: screen_write_initctx(ctx, &ttyctx, 1);
1.165 nicm 1569: ttyctx.bg = ci->bg;
1570: tty_write(tty_cmd_clearendofline, &ttyctx);
1571: } else if (ci->type == CLEAR_START) {
1.167 nicm 1572: screen_write_initctx(ctx, &ttyctx, 1);
1.165 nicm 1573: ttyctx.bg = ci->bg;
1574: tty_write(tty_cmd_clearstartofline, &ttyctx);
1575: } else {
1.167 nicm 1576: screen_write_initctx(ctx, &ttyctx, 0);
1.165 nicm 1577: ttyctx.cell = &ci->gc;
1578: ttyctx.wrapped = ci->wrapped;
1.172 nicm 1579: ttyctx.ptr = cl->data + ci->x;
1.165 nicm 1580: ttyctx.num = ci->used;
1581: tty_write(tty_cmd_cells, &ttyctx);
1582: }
1.116 nicm 1583:
1584: items++;
1585: written += ci->used;
1.109 nicm 1586:
1.172 nicm 1587: TAILQ_REMOVE(&cl->items, ci, entry);
1.109 nicm 1588: free(ci);
1589: }
1.172 nicm 1590: cl->bg = 0;
1.109 nicm 1591: }
1592: s->cx = cx; s->cy = cy;
1.116 nicm 1593:
1.164 nicm 1594: log_debug("%s: flushed %u items (%zu bytes) (%s)", __func__, items,
1595: written, from);
1.116 nicm 1596: ctx->written += written;
1.109 nicm 1597: }
1598:
1599: /* Finish and store collected cells. */
1600: void
1601: screen_write_collect_end(struct screen_write_ctx *ctx)
1602: {
1603: struct screen *s = ctx->s;
1604: struct screen_write_collect_item *ci = ctx->item;
1.172 nicm 1605: struct screen_write_collect_line *cl = &s->write_list[s->cy];
1.109 nicm 1606: struct grid_cell gc;
1.131 nicm 1607: u_int xx;
1.109 nicm 1608:
1609: if (ci->used == 0)
1610: return;
1611:
1612: ci->x = s->cx;
1.172 nicm 1613: TAILQ_INSERT_TAIL(&cl->items, ci, entry);
1.109 nicm 1614: ctx->item = xcalloc(1, sizeof *ctx->item);
1615:
1.170 nicm 1616: log_debug("%s: %u %.*s (at %u,%u)", __func__, ci->used,
1.172 nicm 1617: (int)ci->used, cl->data + ci->x, s->cx, s->cy);
1.109 nicm 1618:
1.131 nicm 1619: if (s->cx != 0) {
1620: for (xx = s->cx; xx > 0; xx--) {
1621: grid_view_get_cell(s->grid, xx, s->cy, &gc);
1622: if (~gc.flags & GRID_FLAG_PADDING)
1623: break;
1.136 nicm 1624: grid_view_set_cell(s->grid, xx, s->cy,
1625: &grid_default_cell);
1.131 nicm 1626: }
1.139 nicm 1627: if (gc.data.width > 1) {
1.136 nicm 1628: grid_view_set_cell(s->grid, xx, s->cy,
1629: &grid_default_cell);
1.139 nicm 1630: }
1.131 nicm 1631: }
1632:
1.172 nicm 1633: grid_view_set_cells(s->grid, s->cx, s->cy, &ci->gc, cl->data + ci->x,
1634: ci->used);
1.139 nicm 1635: screen_write_set_cursor(ctx, s->cx + ci->used, -1);
1.131 nicm 1636:
1637: for (xx = s->cx; xx < screen_size_x(s); xx++) {
1638: grid_view_get_cell(s->grid, xx, s->cy, &gc);
1639: if (~gc.flags & GRID_FLAG_PADDING)
1640: break;
1641: grid_view_set_cell(s->grid, xx, s->cy, &grid_default_cell);
1642: }
1.109 nicm 1643: }
1644:
1645: /* Write cell data, collecting if necessary. */
1646: void
1647: screen_write_collect_add(struct screen_write_ctx *ctx,
1648: const struct grid_cell *gc)
1649: {
1650: struct screen *s = ctx->s;
1651: struct screen_write_collect_item *ci;
1652: u_int sx = screen_size_x(s);
1653: int collect;
1654:
1655: /*
1656: * Don't need to check that the attributes and whatnot are still the
1.116 nicm 1657: * same - input_parse will end the collection when anything that isn't
1.159 nicm 1658: * a plain character is encountered.
1.109 nicm 1659: */
1660:
1661: collect = 1;
1.136 nicm 1662: if (gc->data.width != 1 || gc->data.size != 1 || *gc->data.data >= 0x7f)
1.109 nicm 1663: collect = 0;
1664: else if (gc->attr & GRID_ATTR_CHARSET)
1665: collect = 0;
1666: else if (~s->mode & MODE_WRAP)
1667: collect = 0;
1668: else if (s->mode & MODE_INSERT)
1669: collect = 0;
1.138 nicm 1670: else if (s->sel != NULL)
1.109 nicm 1671: collect = 0;
1672: if (!collect) {
1673: screen_write_collect_end(ctx);
1.164 nicm 1674: screen_write_collect_flush(ctx, 0, __func__);
1.109 nicm 1675: screen_write_cell(ctx, gc);
1676: return;
1677: }
1678: ctx->cells++;
1679:
1680: if (s->cx > sx - 1 || ctx->item->used > sx - 1 - s->cx)
1681: screen_write_collect_end(ctx);
1.118 nicm 1682: ci = ctx->item; /* may have changed */
1683:
1.109 nicm 1684: if (s->cx > sx - 1) {
1.114 nicm 1685: log_debug("%s: wrapped at %u,%u", __func__, s->cx, s->cy);
1.118 nicm 1686: ci->wrapped = 1;
1.122 nicm 1687: screen_write_linefeed(ctx, 1, 8);
1.139 nicm 1688: screen_write_set_cursor(ctx, 0, -1);
1.109 nicm 1689: }
1690:
1691: if (ci->used == 0)
1692: memcpy(&ci->gc, gc, sizeof ci->gc);
1.172 nicm 1693: if (ctx->s->write_list[s->cy].data == NULL)
1694: ctx->s->write_list[s->cy].data = xmalloc(screen_size_x(ctx->s));
1695: ctx->s->write_list[s->cy].data[s->cx + ci->used++] = gc->data.data[0];
1.109 nicm 1696: }
1697:
1.1 nicm 1698: /* Write cell data. */
1699: void
1.60 nicm 1700: screen_write_cell(struct screen_write_ctx *ctx, const struct grid_cell *gc)
1.1 nicm 1701: {
1702: struct screen *s = ctx->s;
1703: struct grid *gd = s->grid;
1.109 nicm 1704: struct grid_line *gl;
1705: struct grid_cell_entry *gce;
1706: struct grid_cell tmp_gc, now_gc;
1.15 nicm 1707: struct tty_ctx ttyctx;
1.92 nicm 1708: u_int sx = screen_size_x(s), sy = screen_size_y(s);
1.115 nicm 1709: u_int width = gc->data.width, xx, last, cx, cy;
1.109 nicm 1710: int selected, skip = 1;
1.1 nicm 1711:
1.109 nicm 1712: /* Ignore padding cells. */
1.1 nicm 1713: if (gc->flags & GRID_FLAG_PADDING)
1714: return;
1.109 nicm 1715: ctx->cells++;
1.32 nicm 1716:
1.109 nicm 1717: /* If the width is zero, combine onto the previous character. */
1.1 nicm 1718: if (width == 0) {
1.164 nicm 1719: screen_write_collect_flush(ctx, 0, __func__);
1.104 nicm 1720: if ((gc = screen_write_combine(ctx, &gc->data, &xx)) != 0) {
1.115 nicm 1721: cx = s->cx; cy = s->cy;
1.144 nicm 1722: screen_write_set_cursor(ctx, xx, s->cy);
1.163 nicm 1723: screen_write_initctx(ctx, &ttyctx, 0);
1.104 nicm 1724: ttyctx.cell = gc;
1725: tty_write(tty_cmd_cell, &ttyctx);
1.115 nicm 1726: s->cx = cx; s->cy = cy;
1.1 nicm 1727: }
1728: return;
1729: }
1.112 nicm 1730:
1731: /* Flush any existing scrolling. */
1.164 nicm 1732: screen_write_collect_flush(ctx, 1, __func__);
1.1 nicm 1733:
1.109 nicm 1734: /* If this character doesn't fit, ignore it. */
1735: if ((~s->mode & MODE_WRAP) &&
1736: width > 1 &&
1737: (width > sx || (s->cx != sx && s->cx > sx - width)))
1738: return;
1739:
1.6 nicm 1740: /* If in insert mode, make space for the cells. */
1.98 nicm 1741: if (s->mode & MODE_INSERT) {
1.109 nicm 1742: grid_view_insert_cells(s->grid, s->cx, s->cy, width, 8);
1743: skip = 0;
1744: }
1.6 nicm 1745:
1.20 nicm 1746: /* Check this will fit on the current line and wrap if not. */
1.92 nicm 1747: if ((s->mode & MODE_WRAP) && s->cx > sx - width) {
1.128 nicm 1748: log_debug("%s: wrapped at %u,%u", __func__, s->cx, s->cy);
1.122 nicm 1749: screen_write_linefeed(ctx, 1, 8);
1.139 nicm 1750: screen_write_set_cursor(ctx, 0, -1);
1.164 nicm 1751: screen_write_collect_flush(ctx, 1, __func__);
1.1 nicm 1752: }
1753:
1.64 nicm 1754: /* Sanity check cursor position. */
1.92 nicm 1755: if (s->cx > sx - width || s->cy > sy - 1)
1.1 nicm 1756: return;
1.163 nicm 1757: screen_write_initctx(ctx, &ttyctx, 0);
1.106 nicm 1758:
1.1 nicm 1759: /* Handle overwriting of UTF-8 characters. */
1.137 nicm 1760: gl = grid_get_line(s->grid, s->grid->hsize + s->cy);
1.92 nicm 1761: if (gl->flags & GRID_LINE_EXTENDED) {
1762: grid_view_get_cell(gd, s->cx, s->cy, &now_gc);
1763: if (screen_write_overwrite(ctx, &now_gc, width))
1764: skip = 0;
1765: }
1.1 nicm 1766:
1767: /*
1768: * If the new character is UTF-8 wide, fill in padding cells. Have
1769: * already ensured there is enough room.
1770: */
1.89 nicm 1771: for (xx = s->cx + 1; xx < s->cx + width; xx++) {
1.131 nicm 1772: log_debug("%s: new padding at %u,%u", __func__, xx, s->cy);
1.184 ! nicm 1773: grid_view_set_padding(gd, xx, s->cy);
1.89 nicm 1774: skip = 0;
1775: }
1776:
1777: /* If no change, do not draw. */
1.92 nicm 1778: if (skip) {
1779: if (s->cx >= gl->cellsize)
1780: skip = grid_cells_equal(gc, &grid_default_cell);
1781: else {
1782: gce = &gl->celldata[s->cx];
1783: if (gce->flags & GRID_FLAG_EXTENDED)
1784: skip = 0;
1.95 nicm 1785: else if (gc->flags != gce->flags)
1.92 nicm 1786: skip = 0;
1787: else if (gc->attr != gce->data.attr)
1788: skip = 0;
1789: else if (gc->fg != gce->data.fg)
1790: skip = 0;
1791: else if (gc->bg != gce->data.bg)
1792: skip = 0;
1.95 nicm 1793: else if (gc->data.width != 1)
1794: skip = 0;
1.109 nicm 1795: else if (gc->data.size != 1)
1796: skip = 0;
1.95 nicm 1797: else if (gce->data.data != gc->data.data[0])
1.92 nicm 1798: skip = 0;
1799: }
1800: }
1.1 nicm 1801:
1.127 nicm 1802: /* Update the selected flag and set the cell. */
1.90 nicm 1803: selected = screen_check_selection(s, s->cx, s->cy);
1.109 nicm 1804: if (selected && (~gc->flags & GRID_FLAG_SELECTED)) {
1.90 nicm 1805: memcpy(&tmp_gc, gc, sizeof tmp_gc);
1806: tmp_gc.flags |= GRID_FLAG_SELECTED;
1807: grid_view_set_cell(gd, s->cx, s->cy, &tmp_gc);
1.109 nicm 1808: } else if (!selected && (gc->flags & GRID_FLAG_SELECTED)) {
1.90 nicm 1809: memcpy(&tmp_gc, gc, sizeof tmp_gc);
1810: tmp_gc.flags &= ~GRID_FLAG_SELECTED;
1811: grid_view_set_cell(gd, s->cx, s->cy, &tmp_gc);
1812: } else if (!skip)
1.89 nicm 1813: grid_view_set_cell(gd, s->cx, s->cy, gc);
1.109 nicm 1814: if (selected)
1815: skip = 0;
1.1 nicm 1816:
1.64 nicm 1817: /*
1818: * Move the cursor. If not wrapping, stick at the last character and
1819: * replace it.
1820: */
1.65 nicm 1821: last = !(s->mode & MODE_WRAP);
1.92 nicm 1822: if (s->cx <= sx - last - width)
1.139 nicm 1823: screen_write_set_cursor(ctx, s->cx + width, -1);
1.64 nicm 1824: else
1.139 nicm 1825: screen_write_set_cursor(ctx, sx - last, -1);
1.1 nicm 1826:
1.89 nicm 1827: /* Create space for character in insert mode. */
1.109 nicm 1828: if (s->mode & MODE_INSERT) {
1.164 nicm 1829: screen_write_collect_flush(ctx, 0, __func__);
1.17 nicm 1830: ttyctx.num = width;
1831: tty_write(tty_cmd_insertcharacter, &ttyctx);
1832: }
1.89 nicm 1833:
1834: /* Write to the screen. */
1.109 nicm 1835: if (!skip) {
1836: if (selected) {
1837: screen_select_cell(s, &tmp_gc, gc);
1838: ttyctx.cell = &tmp_gc;
1839: } else
1840: ttyctx.cell = gc;
1.16 nicm 1841: tty_write(tty_cmd_cell, &ttyctx);
1.92 nicm 1842: ctx->written++;
1843: } else
1844: ctx->skipped++;
1.35 nicm 1845: }
1846:
1847: /* Combine a UTF-8 zero-width character onto the previous. */
1.104 nicm 1848: static const struct grid_cell *
1849: screen_write_combine(struct screen_write_ctx *ctx, const struct utf8_data *ud,
1850: u_int *xx)
1.35 nicm 1851: {
1852: struct screen *s = ctx->s;
1853: struct grid *gd = s->grid;
1.104 nicm 1854: static struct grid_cell gc;
1855: u_int n;
1.35 nicm 1856:
1857: /* Can't combine if at 0. */
1858: if (s->cx == 0)
1.104 nicm 1859: return (NULL);
1.35 nicm 1860:
1.60 nicm 1861: /* Empty data is out. */
1862: if (ud->size == 0)
1.37 nicm 1863: fatalx("UTF-8 data empty");
1864:
1.60 nicm 1865: /* Retrieve the previous cell. */
1.119 nicm 1866: for (n = 1; n <= s->cx; n++) {
1.104 nicm 1867: grid_view_get_cell(gd, s->cx - n, s->cy, &gc);
1868: if (~gc.flags & GRID_FLAG_PADDING)
1869: break;
1870: }
1.119 nicm 1871: if (n > s->cx)
1.104 nicm 1872: return (NULL);
1873: *xx = s->cx - n;
1.35 nicm 1874:
1.60 nicm 1875: /* Check there is enough space. */
1.77 nicm 1876: if (gc.data.size + ud->size > sizeof gc.data.data)
1.104 nicm 1877: return (NULL);
1878:
1879: log_debug("%s: %.*s onto %.*s at %u,%u", __func__, (int)ud->size,
1880: ud->data, (int)gc.data.size, gc.data.data, *xx, s->cy);
1.35 nicm 1881:
1.77 nicm 1882: /* Append the data. */
1883: memcpy(gc.data.data + gc.data.size, ud->data, ud->size);
1884: gc.data.size += ud->size;
1885:
1886: /* Set the new cell. */
1.104 nicm 1887: grid_view_set_cell(gd, *xx, s->cy, &gc);
1.35 nicm 1888:
1.104 nicm 1889: return (&gc);
1.1 nicm 1890: }
1891:
1892: /*
1893: * UTF-8 wide characters are a bit of an annoyance. They take up more than one
1894: * cell on the screen, so following cells must not be drawn by marking them as
1895: * padding.
1896: *
1897: * So far, so good. The problem is, when overwriting a padding cell, or a UTF-8
1898: * character, it is necessary to also overwrite any other cells which covered
1899: * by the same character.
1900: */
1.89 nicm 1901: static int
1902: screen_write_overwrite(struct screen_write_ctx *ctx, struct grid_cell *gc,
1903: u_int width)
1.1 nicm 1904: {
1905: struct screen *s = ctx->s;
1906: struct grid *gd = s->grid;
1.89 nicm 1907: struct grid_cell tmp_gc;
1.1 nicm 1908: u_int xx;
1.89 nicm 1909: int done = 0;
1.1 nicm 1910:
1.89 nicm 1911: if (gc->flags & GRID_FLAG_PADDING) {
1.1 nicm 1912: /*
1913: * A padding cell, so clear any following and leading padding
1914: * cells back to the character. Don't overwrite the current
1915: * cell as that happens later anyway.
1916: */
1917: xx = s->cx + 1;
1918: while (--xx > 0) {
1.89 nicm 1919: grid_view_get_cell(gd, xx, s->cy, &tmp_gc);
1920: if (~tmp_gc.flags & GRID_FLAG_PADDING)
1.1 nicm 1921: break;
1.131 nicm 1922: log_debug("%s: padding at %u,%u", __func__, xx, s->cy);
1.1 nicm 1923: grid_view_set_cell(gd, xx, s->cy, &grid_default_cell);
1924: }
1925:
1926: /* Overwrite the character at the start of this padding. */
1.131 nicm 1927: log_debug("%s: character at %u,%u", __func__, xx, s->cy);
1.1 nicm 1928: grid_view_set_cell(gd, xx, s->cy, &grid_default_cell);
1.89 nicm 1929: done = 1;
1.43 nicm 1930: }
1.1 nicm 1931:
1.43 nicm 1932: /*
1.95 nicm 1933: * Overwrite any padding cells that belong to any UTF-8 characters
1934: * we'll be overwriting with the current character.
1.43 nicm 1935: */
1.95 nicm 1936: if (width != 1 ||
1937: gc->data.width != 1 ||
1938: gc->flags & GRID_FLAG_PADDING) {
1.89 nicm 1939: xx = s->cx + width - 1;
1940: while (++xx < screen_size_x(s)) {
1941: grid_view_get_cell(gd, xx, s->cy, &tmp_gc);
1942: if (~tmp_gc.flags & GRID_FLAG_PADDING)
1943: break;
1.160 nicm 1944: log_debug("%s: overwrite at %u,%u", __func__, xx,
1945: s->cy);
1.89 nicm 1946: grid_view_set_cell(gd, xx, s->cy, &grid_default_cell);
1947: done = 1;
1948: }
1.1 nicm 1949: }
1.89 nicm 1950:
1951: return (done);
1.50 nicm 1952: }
1953:
1.107 nicm 1954: /* Set external clipboard. */
1.50 nicm 1955: void
1956: screen_write_setselection(struct screen_write_ctx *ctx, u_char *str, u_int len)
1957: {
1958: struct tty_ctx ttyctx;
1959:
1.163 nicm 1960: screen_write_initctx(ctx, &ttyctx, 0);
1.50 nicm 1961: ttyctx.ptr = str;
1962: ttyctx.num = len;
1963:
1964: tty_write(tty_cmd_setselection, &ttyctx);
1.47 nicm 1965: }
1966:
1.107 nicm 1967: /* Write unmodified string. */
1.47 nicm 1968: void
1969: screen_write_rawstring(struct screen_write_ctx *ctx, u_char *str, u_int len)
1970: {
1.87 nicm 1971: struct tty_ctx ttyctx;
1.47 nicm 1972:
1.163 nicm 1973: screen_write_initctx(ctx, &ttyctx, 0);
1.47 nicm 1974: ttyctx.ptr = str;
1975: ttyctx.num = len;
1976:
1977: tty_write(tty_cmd_rawstring, &ttyctx);
1.178 nicm 1978: }
1979:
1980: /* Turn alternate screen on. */
1981: void
1982: screen_write_alternateon(struct screen_write_ctx *ctx, struct grid_cell *gc,
1983: int cursor)
1984: {
1985: struct tty_ctx ttyctx;
1986: struct window_pane *wp = ctx->wp;
1987:
1988: if (wp != NULL && !options_get_number(wp->options, "alternate-screen"))
1989: return;
1990: screen_alternate_on(ctx->s, gc, cursor);
1991:
1992: screen_write_initctx(ctx, &ttyctx, 1);
1993: ttyctx.redraw_cb(&ttyctx);
1994: }
1995:
1996: /* Turn alternate screen off. */
1997: void
1998: screen_write_alternateoff(struct screen_write_ctx *ctx, struct grid_cell *gc,
1999: int cursor)
2000: {
2001: struct tty_ctx ttyctx;
2002: struct window_pane *wp = ctx->wp;
2003:
2004: if (wp != NULL && !options_get_number(wp->options, "alternate-screen"))
2005: return;
2006: screen_alternate_off(ctx->s, gc, cursor);
2007:
2008: screen_write_initctx(ctx, &ttyctx, 1);
2009: ttyctx.redraw_cb(&ttyctx);
1.1 nicm 2010: }
![[BACK]](/icons/back.gif){kind=icon}
Return to screen-write.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / tmux