Annotation of src/usr.bin/tmux/screen.c, Revision 1.84
1.84 ! nicm 1: /* $OpenBSD: screen.c,v 1.83 2023/09/19 08:35:44 nicm Exp $ */
1.1 nicm 2:
3: /*
1.37 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:
1.3 nicm 21: #include <stdlib.h>
1.1 nicm 22: #include <string.h>
1.16 nicm 23: #include <unistd.h>
1.47 nicm 24: #include <vis.h>
1.1 nicm 25:
26: #include "tmux.h"
27:
1.52 nicm 28: /* Selected area in screen. */
29: struct screen_sel {
30: int hidden;
31: int rectangle;
32: int modekeys;
33:
34: u_int sx;
35: u_int sy;
36:
37: u_int ex;
38: u_int ey;
39:
40: struct grid_cell cell;
41: };
42:
43: /* Entry on title stack. */
1.48 nicm 44: struct screen_title_entry {
45: char *text;
46:
47: TAILQ_ENTRY(screen_title_entry) entry;
48: };
49: TAILQ_HEAD(screen_titles, screen_title_entry);
50:
1.66 nicm 51: static void screen_resize_y(struct screen *, u_int, int, u_int *);
1.67 nicm 52: static void screen_reflow(struct screen *, u_int, u_int *, u_int *, int);
1.42 nicm 53:
1.48 nicm 54: /* Free titles stack. */
55: static void
56: screen_free_titles(struct screen *s)
57: {
58: struct screen_title_entry *title_entry;
59:
60: if (s->titles == NULL)
61: return;
62:
63: while ((title_entry = TAILQ_FIRST(s->titles)) != NULL) {
64: TAILQ_REMOVE(s->titles, title_entry, entry);
65: free(title_entry->text);
66: free(title_entry);
67: }
68:
69: free(s->titles);
70: s->titles = NULL;
71: }
72:
1.1 nicm 73: /* Create a new screen. */
74: void
75: screen_init(struct screen *s, u_int sx, u_int sy, u_int hlimit)
76: {
77: s->grid = grid_create(sx, sy, hlimit);
1.59 nicm 78: s->saved_grid = NULL;
79:
1.34 nicm 80: s->title = xstrdup("");
1.48 nicm 81: s->titles = NULL;
1.68 nicm 82: s->path = NULL;
1.1 nicm 83:
1.72 nicm 84: s->cstyle = SCREEN_CURSOR_DEFAULT;
1.78 nicm 85: s->default_cstyle = SCREEN_CURSOR_DEFAULT;
1.84 ! nicm 86: s->mode = MODE_CURSOR;
1.78 nicm 87: s->default_mode = 0;
1.77 nicm 88: s->ccolour = -1;
89: s->default_ccolour = -1;
1.3 nicm 90: s->tabs = NULL;
1.52 nicm 91: s->sel = NULL;
1.3 nicm 92:
1.64 nicm 93: s->write_list = NULL;
1.81 nicm 94: s->hyperlinks = NULL;
1.64 nicm 95:
1.1 nicm 96: screen_reinit(s);
97: }
98:
99: /* Reinitialise screen. */
100: void
101: screen_reinit(struct screen *s)
102: {
103: s->cx = 0;
104: s->cy = 0;
105:
106: s->rupper = 0;
107: s->rlower = screen_size_y(s) - 1;
108:
1.79 nicm 109: s->mode = MODE_CURSOR|MODE_WRAP|(s->mode & MODE_CRLF);
1.71 nicm 110: if (options_get_number(global_options, "extended-keys") == 2)
111: s->mode |= MODE_KEXTENDED;
1.12 nicm 112:
1.59 nicm 113: if (s->saved_grid != NULL)
114: screen_alternate_off(s, NULL, 0);
115: s->saved_cx = UINT_MAX;
116: s->saved_cy = UINT_MAX;
117:
1.3 nicm 118: screen_reset_tabs(s);
1.1 nicm 119:
1.44 nicm 120: grid_clear_lines(s->grid, s->grid->hsize, s->grid->sy, 8);
1.1 nicm 121:
122: screen_clear_selection(s);
1.48 nicm 123: screen_free_titles(s);
1.81 nicm 124: screen_reset_hyperlinks(s);
125: }
126:
127: /* Reset hyperlinks of a screen. */
128: void
129: screen_reset_hyperlinks(struct screen *s)
130: {
131: if (s->hyperlinks == NULL)
132: s->hyperlinks = hyperlinks_init();
133: else
134: hyperlinks_reset(s->hyperlinks);
1.1 nicm 135: }
136:
137: /* Destroy a screen. */
138: void
139: screen_free(struct screen *s)
140: {
1.52 nicm 141: free(s->sel);
1.23 nicm 142: free(s->tabs);
1.68 nicm 143: free(s->path);
1.23 nicm 144: free(s->title);
1.48 nicm 145:
1.64 nicm 146: if (s->write_list != NULL)
147: screen_write_free_list(s);
148:
1.59 nicm 149: if (s->saved_grid != NULL)
150: grid_destroy(s->saved_grid);
1.1 nicm 151: grid_destroy(s->grid);
1.48 nicm 152:
1.81 nicm 153: if (s->hyperlinks != NULL)
154: hyperlinks_free(s->hyperlinks);
1.48 nicm 155: screen_free_titles(s);
1.1 nicm 156: }
157:
1.3 nicm 158: /* Reset tabs to default, eight spaces apart. */
159: void
160: screen_reset_tabs(struct screen *s)
161: {
162: u_int i;
163:
1.23 nicm 164: free(s->tabs);
1.3 nicm 165:
166: if ((s->tabs = bit_alloc(screen_size_x(s))) == NULL)
167: fatal("bit_alloc failed");
168: for (i = 8; i < screen_size_x(s); i += 8)
169: bit_set(s->tabs, i);
1.21 nicm 170: }
171:
1.78 nicm 172: /* Set screen cursor style and mode. */
1.21 nicm 173: void
1.78 nicm 174: screen_set_cursor_style(u_int style, enum screen_cursor_style *cstyle,
175: int *mode)
1.21 nicm 176: {
1.73 nicm 177: switch (style) {
1.72 nicm 178: case 0:
1.78 nicm 179: *cstyle = SCREEN_CURSOR_DEFAULT;
1.72 nicm 180: break;
181: case 1:
1.78 nicm 182: *cstyle = SCREEN_CURSOR_BLOCK;
183: *mode |= MODE_CURSOR_BLINKING;
1.72 nicm 184: break;
185: case 2:
1.78 nicm 186: *cstyle = SCREEN_CURSOR_BLOCK;
187: *mode &= ~MODE_CURSOR_BLINKING;
1.72 nicm 188: break;
189: case 3:
1.78 nicm 190: *cstyle = SCREEN_CURSOR_UNDERLINE;
191: *mode |= MODE_CURSOR_BLINKING;
1.72 nicm 192: break;
193: case 4:
1.78 nicm 194: *cstyle = SCREEN_CURSOR_UNDERLINE;
195: *mode &= ~MODE_CURSOR_BLINKING;
1.72 nicm 196: break;
197: case 5:
1.78 nicm 198: *cstyle = SCREEN_CURSOR_BAR;
199: *mode |= MODE_CURSOR_BLINKING;
1.72 nicm 200: break;
201: case 6:
1.78 nicm 202: *cstyle = SCREEN_CURSOR_BAR;
203: *mode &= ~MODE_CURSOR_BLINKING;
1.72 nicm 204: break;
1.70 nicm 205: }
1.20 nicm 206: }
207:
208: /* Set screen cursor colour. */
209: void
1.77 nicm 210: screen_set_cursor_colour(struct screen *s, int colour)
1.20 nicm 211: {
1.77 nicm 212: s->ccolour = colour;
1.3 nicm 213: }
214:
1.1 nicm 215: /* Set screen title. */
1.57 nicm 216: int
1.1 nicm 217: screen_set_title(struct screen *s, const char *title)
218: {
1.57 nicm 219: if (!utf8_isvalid(title))
220: return (0);
1.23 nicm 221: free(s->title);
1.57 nicm 222: s->title = xstrdup(title);
223: return (1);
1.56 nicm 224: }
225:
226: /* Set screen path. */
227: void
228: screen_set_path(struct screen *s, const char *path)
229: {
230: free(s->path);
231: utf8_stravis(&s->path, path, VIS_OCTAL|VIS_CSTYLE|VIS_TAB|VIS_NL);
1.48 nicm 232: }
233:
234: /* Push the current title onto the stack. */
235: void
236: screen_push_title(struct screen *s)
237: {
238: struct screen_title_entry *title_entry;
239:
240: if (s->titles == NULL) {
241: s->titles = xmalloc(sizeof *s->titles);
242: TAILQ_INIT(s->titles);
243: }
244: title_entry = xmalloc(sizeof *title_entry);
245: title_entry->text = xstrdup(s->title);
246: TAILQ_INSERT_HEAD(s->titles, title_entry, entry);
247: }
248:
249: /*
250: * Pop a title from the stack and set it as the screen title. If the stack is
251: * empty, do nothing.
252: */
253: void
254: screen_pop_title(struct screen *s)
255: {
256: struct screen_title_entry *title_entry;
257:
258: if (s->titles == NULL)
259: return;
260:
261: title_entry = TAILQ_FIRST(s->titles);
262: if (title_entry != NULL) {
263: screen_set_title(s, title_entry->text);
264:
265: TAILQ_REMOVE(s->titles, title_entry, entry);
266: free(title_entry->text);
267: free(title_entry);
268: }
1.1 nicm 269: }
270:
1.67 nicm 271: /* Resize screen with options. */
1.1 nicm 272: void
1.62 nicm 273: screen_resize_cursor(struct screen *s, u_int sx, u_int sy, int reflow,
1.67 nicm 274: int eat_empty, int cursor)
1.1 nicm 275: {
1.67 nicm 276: u_int cx = s->cx, cy = s->grid->hsize + s->cy;
1.64 nicm 277:
1.65 nicm 278: if (s->write_list != NULL)
1.64 nicm 279: screen_write_free_list(s);
1.62 nicm 280:
1.63 nicm 281: log_debug("%s: new size %ux%u, now %ux%u (cursor %u,%u = %u,%u)",
282: __func__, sx, sy, screen_size_x(s), screen_size_y(s), s->cx, s->cy,
1.67 nicm 283: cx, cy);
1.62 nicm 284:
1.1 nicm 285: if (sx < 1)
286: sx = 1;
287: if (sy < 1)
288: sy = 1;
289:
1.3 nicm 290: if (sx != screen_size_x(s)) {
1.54 nicm 291: s->grid->sx = sx;
1.3 nicm 292: screen_reset_tabs(s);
1.49 nicm 293: } else
294: reflow = 0;
1.3 nicm 295:
1.1 nicm 296: if (sy != screen_size_y(s))
1.67 nicm 297: screen_resize_y(s, sy, eat_empty, &cy);
1.24 nicm 298:
299: if (reflow)
1.67 nicm 300: screen_reflow(s, sx, &cx, &cy, cursor);
1.62 nicm 301:
1.67 nicm 302: if (cy >= s->grid->hsize) {
303: s->cx = cx;
304: s->cy = cy - s->grid->hsize;
1.62 nicm 305: } else {
306: s->cx = 0;
307: s->cy = 0;
308: }
1.67 nicm 309:
1.63 nicm 310: log_debug("%s: cursor finished at %u,%u = %u,%u", __func__, s->cx,
1.67 nicm 311: s->cy, cx, cy);
1.65 nicm 312:
313: if (s->write_list != NULL)
314: screen_write_make_list(s);
1.62 nicm 315: }
316:
317: /* Resize screen. */
318: void
319: screen_resize(struct screen *s, u_int sx, u_int sy, int reflow)
320: {
1.67 nicm 321: screen_resize_cursor(s, sx, sy, reflow, 1, 1);
1.1 nicm 322: }
323:
1.41 nicm 324: static void
1.66 nicm 325: screen_resize_y(struct screen *s, u_int sy, int eat_empty, u_int *cy)
1.1 nicm 326: {
327: struct grid *gd = s->grid;
1.4 nicm 328: u_int needed, available, oldy, i;
1.1 nicm 329:
330: if (sy == 0)
331: fatalx("zero size");
1.4 nicm 332: oldy = screen_size_y(s);
333:
1.12 nicm 334: /*
1.4 nicm 335: * When resizing:
336: *
337: * If the height is decreasing, delete lines from the bottom until
338: * hitting the cursor, then push lines from the top into the history.
1.12 nicm 339: *
1.40 nicm 340: * When increasing, pull as many lines as possible from scrolled
341: * history (not explicitly cleared from view) to the top, then fill the
342: * remaining with blanks at the bottom.
1.4 nicm 343: */
1.1 nicm 344:
345: /* Size decreasing. */
1.4 nicm 346: if (sy < oldy) {
347: needed = oldy - sy;
1.1 nicm 348:
1.4 nicm 349: /* Delete as many lines as possible from the bottom. */
1.62 nicm 350: if (eat_empty) {
351: available = oldy - 1 - s->cy;
352: if (available > 0) {
353: if (available > needed)
354: available = needed;
355: grid_view_delete_lines(gd, oldy - available,
356: available, 8);
357: }
358: needed -= available;
1.1 nicm 359: }
360:
1.4 nicm 361: /*
1.8 nicm 362: * Now just increase the history size, if possible, to take
363: * over the lines which are left. If history is off, delete
364: * lines from the top.
1.4 nicm 365: */
1.8 nicm 366: available = s->cy;
1.40 nicm 367: if (gd->flags & GRID_HISTORY) {
368: gd->hscrolled += needed;
1.8 nicm 369: gd->hsize += needed;
1.40 nicm 370: } else if (needed > 0 && available > 0) {
1.8 nicm 371: if (available > needed)
372: available = needed;
1.44 nicm 373: grid_view_delete_lines(gd, 0, available, 8);
1.66 nicm 374: (*cy) -= available;
1.8 nicm 375: }
1.12 nicm 376: }
1.1 nicm 377:
1.51 nicm 378: /* Resize line array. */
379: grid_adjust_lines(gd, gd->hsize + sy);
1.1 nicm 380:
381: /* Size increasing. */
1.4 nicm 382: if (sy > oldy) {
383: needed = sy - oldy;
384:
1.8 nicm 385: /*
1.41 nicm 386: * Try to pull as much as possible out of scrolled history, if
387: * is is enabled.
1.8 nicm 388: */
1.40 nicm 389: available = gd->hscrolled;
1.8 nicm 390: if (gd->flags & GRID_HISTORY && available > 0) {
1.4 nicm 391: if (available > needed)
392: available = needed;
1.40 nicm 393: gd->hscrolled -= available;
1.4 nicm 394: gd->hsize -= available;
1.8 nicm 395: } else
396: available = 0;
1.4 nicm 397: needed -= available;
398:
399: /* Then fill the rest in with blanks. */
1.11 nicm 400: for (i = gd->hsize + sy - needed; i < gd->hsize + sy; i++)
1.61 nicm 401: grid_empty_line(gd, i, 8);
1.1 nicm 402: }
403:
1.4 nicm 404: /* Set the new size, and reset the scroll region. */
1.1 nicm 405: gd->sy = sy;
406: s->rupper = 0;
407: s->rlower = screen_size_y(s) - 1;
408: }
409:
410: /* Set selection. */
411: void
1.14 nicm 412: screen_set_selection(struct screen *s, u_int sx, u_int sy,
1.52 nicm 413: u_int ex, u_int ey, u_int rectangle, int modekeys, struct grid_cell *gc)
1.1 nicm 414: {
1.52 nicm 415: if (s->sel == NULL)
416: s->sel = xcalloc(1, sizeof *s->sel);
1.1 nicm 417:
1.52 nicm 418: memcpy(&s->sel->cell, gc, sizeof s->sel->cell);
419: s->sel->hidden = 0;
420: s->sel->rectangle = rectangle;
421: s->sel->modekeys = modekeys;
422:
423: s->sel->sx = sx;
424: s->sel->sy = sy;
425: s->sel->ex = ex;
426: s->sel->ey = ey;
1.1 nicm 427: }
428:
429: /* Clear selection. */
430: void
431: screen_clear_selection(struct screen *s)
432: {
1.52 nicm 433: free(s->sel);
434: s->sel = NULL;
1.1 nicm 435: }
436:
1.45 nicm 437: /* Hide selection. */
438: void
439: screen_hide_selection(struct screen *s)
440: {
1.52 nicm 441: if (s->sel != NULL)
442: s->sel->hidden = 1;
1.45 nicm 443: }
444:
1.1 nicm 445: /* Check if cell in selection. */
446: int
447: screen_check_selection(struct screen *s, u_int px, u_int py)
448: {
1.52 nicm 449: struct screen_sel *sel = s->sel;
1.28 nicm 450: u_int xx;
1.1 nicm 451:
1.52 nicm 452: if (sel == NULL || sel->hidden)
1.1 nicm 453: return (0);
454:
1.52 nicm 455: if (sel->rectangle) {
1.14 nicm 456: if (sel->sy < sel->ey) {
457: /* start line < end line -- downward selection. */
458: if (py < sel->sy || py > sel->ey)
459: return (0);
460: } else if (sel->sy > sel->ey) {
461: /* start line > end line -- upward selection. */
462: if (py > sel->sy || py < sel->ey)
463: return (0);
464: } else {
465: /* starting line == ending line. */
466: if (py != sel->sy)
467: return (0);
468: }
469:
470: /*
471: * Need to include the selection start row, but not the cursor
472: * row, which means the selection changes depending on which
473: * one is on the left.
474: */
475: if (sel->ex < sel->sx) {
476: /* Cursor (ex) is on the left. */
1.17 nicm 477: if (px < sel->ex)
1.14 nicm 478: return (0);
479:
480: if (px > sel->sx)
481: return (0);
482: } else {
483: /* Selection start (sx) is on the left. */
484: if (px < sel->sx)
485: return (0);
486:
1.17 nicm 487: if (px > sel->ex)
1.14 nicm 488: return (0);
489: }
490: } else {
491: /*
492: * Like emacs, keep the top-left-most character, and drop the
493: * bottom-right-most, regardless of copy direction.
494: */
495: if (sel->sy < sel->ey) {
496: /* starting line < ending line -- downward selection. */
497: if (py < sel->sy || py > sel->ey)
498: return (0);
499:
1.28 nicm 500: if (py == sel->sy && px < sel->sx)
1.29 nicm 501: return (0);
1.28 nicm 502:
1.53 nicm 503: if (sel->modekeys == MODEKEY_EMACS)
504: xx = (sel->ex == 0 ? 0 : sel->ex - 1);
505: else
506: xx = sel->ex;
507: if (py == sel->ey && px > xx)
1.14 nicm 508: return (0);
509: } else if (sel->sy > sel->ey) {
510: /* starting line > ending line -- upward selection. */
511: if (py > sel->sy || py < sel->ey)
512: return (0);
513:
1.28 nicm 514: if (py == sel->ey && px < sel->ex)
515: return (0);
516:
517: if (sel->modekeys == MODEKEY_EMACS)
518: xx = sel->sx - 1;
519: else
520: xx = sel->sx;
1.46 nicm 521: if (py == sel->sy && (sel->sx == 0 || px > xx))
1.14 nicm 522: return (0);
523: } else {
524: /* starting line == ending line. */
525: if (py != sel->sy)
526: return (0);
527:
528: if (sel->ex < sel->sx) {
529: /* cursor (ex) is on the left */
1.28 nicm 530: if (sel->modekeys == MODEKEY_EMACS)
531: xx = sel->sx - 1;
532: else
533: xx = sel->sx;
534: if (px > xx || px < sel->ex)
1.14 nicm 535: return (0);
536: } else {
537: /* selection start (sx) is on the left */
1.53 nicm 538: if (sel->modekeys == MODEKEY_EMACS)
539: xx = (sel->ex == 0 ? 0 : sel->ex - 1);
540: else
541: xx = sel->ex;
542: if (px < sel->sx || px > xx)
1.14 nicm 543: return (0);
544: }
545: }
1.1 nicm 546: }
547:
548: return (1);
1.43 nicm 549: }
550:
551: /* Get selected grid cell. */
552: void
553: screen_select_cell(struct screen *s, struct grid_cell *dst,
554: const struct grid_cell *src)
555: {
1.52 nicm 556: if (s->sel == NULL || s->sel->hidden)
1.43 nicm 557: return;
558:
1.52 nicm 559: memcpy(dst, &s->sel->cell, sizeof *dst);
1.43 nicm 560:
561: utf8_copy(&dst->data, &src->data);
562: dst->attr = dst->attr & ~GRID_ATTR_CHARSET;
563: dst->attr |= src->attr & GRID_ATTR_CHARSET;
564: dst->flags = src->flags;
1.24 nicm 565: }
566:
567: /* Reflow wrapped lines. */
1.42 nicm 568: static void
1.67 nicm 569: screen_reflow(struct screen *s, u_int new_x, u_int *cx, u_int *cy, int cursor)
1.24 nicm 570: {
1.62 nicm 571: u_int wx, wy;
1.54 nicm 572:
1.67 nicm 573: if (cursor) {
574: grid_wrap_position(s->grid, *cx, *cy, &wx, &wy);
575: log_debug("%s: cursor %u,%u is %u,%u", __func__, *cx, *cy, wx,
576: wy);
577: }
1.54 nicm 578:
579: grid_reflow(s->grid, new_x);
580:
1.67 nicm 581: if (cursor) {
582: grid_unwrap_position(s->grid, cx, cy, wx, wy);
583: log_debug("%s: new cursor is %u,%u", __func__, *cx, *cy);
584: }
585: else {
586: *cx = 0;
587: *cy = s->grid->hsize;
588: }
1.59 nicm 589: }
590:
591: /*
592: * Enter alternative screen mode. A copy of the visible screen is saved and the
593: * history is not updated.
594: */
595: void
596: screen_alternate_on(struct screen *s, struct grid_cell *gc, int cursor)
597: {
598: u_int sx, sy;
599:
600: if (s->saved_grid != NULL)
601: return;
602: sx = screen_size_x(s);
603: sy = screen_size_y(s);
604:
605: s->saved_grid = grid_create(sx, sy, 0);
606: grid_duplicate_lines(s->saved_grid, 0, s->grid, screen_hsize(s), sy);
607: if (cursor) {
608: s->saved_cx = s->cx;
609: s->saved_cy = s->cy;
610: }
611: memcpy(&s->saved_cell, gc, sizeof s->saved_cell);
612:
613: grid_view_clear(s->grid, 0, 0, sx, sy, 8);
614:
1.60 nicm 615: s->saved_flags = s->grid->flags;
1.59 nicm 616: s->grid->flags &= ~GRID_HISTORY;
617: }
618:
619: /* Exit alternate screen mode and restore the copied grid. */
620: void
621: screen_alternate_off(struct screen *s, struct grid_cell *gc, int cursor)
622: {
1.69 nicm 623: u_int sx = screen_size_x(s), sy = screen_size_y(s);
624:
625: /*
626: * If the current size is different, temporarily resize to the old size
627: * before copying back.
628: */
629: if (s->saved_grid != NULL)
1.82 nicm 630: screen_resize(s, s->saved_grid->sx, s->saved_grid->sy, 0);
1.59 nicm 631:
632: /*
633: * Restore the cursor position and cell. This happens even if not
634: * currently in the alternate screen.
635: */
636: if (cursor && s->saved_cx != UINT_MAX && s->saved_cy != UINT_MAX) {
637: s->cx = s->saved_cx;
638: s->cy = s->saved_cy;
639: if (gc != NULL)
640: memcpy(gc, &s->saved_cell, sizeof *gc);
641: }
642:
1.69 nicm 643: /* If not in the alternate screen, do nothing more. */
644: if (s->saved_grid == NULL) {
645: if (s->cx > screen_size_x(s) - 1)
646: s->cx = screen_size_x(s) - 1;
647: if (s->cy > screen_size_y(s) - 1)
648: s->cy = screen_size_y(s) - 1;
1.59 nicm 649: return;
1.69 nicm 650: }
1.59 nicm 651:
652: /* Restore the saved grid. */
1.69 nicm 653: grid_duplicate_lines(s->grid, screen_hsize(s), s->saved_grid, 0,
654: s->saved_grid->sy);
1.59 nicm 655:
656: /*
657: * Turn history back on (so resize can use it) and then resize back to
658: * the current size.
659: */
1.60 nicm 660: if (s->saved_flags & GRID_HISTORY)
661: s->grid->flags |= GRID_HISTORY;
1.69 nicm 662: screen_resize(s, sx, sy, 1);
1.59 nicm 663:
664: grid_destroy(s->saved_grid);
665: s->saved_grid = NULL;
1.69 nicm 666:
667: if (s->cx > screen_size_x(s) - 1)
668: s->cx = screen_size_x(s) - 1;
669: if (s->cy > screen_size_y(s) - 1)
670: s->cy = screen_size_y(s) - 1;
1.73 nicm 671: }
672:
673: /* Get mode as a string. */
674: const char *
675: screen_mode_to_string(int mode)
676: {
677: static char tmp[1024];
678:
679: if (mode == 0)
1.80 nicm 680: return ("NONE");
1.73 nicm 681: if (mode == ALL_MODES)
1.80 nicm 682: return ("ALL");
1.73 nicm 683:
684: *tmp = '\0';
685: if (mode & MODE_CURSOR)
686: strlcat(tmp, "CURSOR,", sizeof tmp);
687: if (mode & MODE_INSERT)
688: strlcat(tmp, "INSERT,", sizeof tmp);
689: if (mode & MODE_KCURSOR)
690: strlcat(tmp, "KCURSOR,", sizeof tmp);
691: if (mode & MODE_KKEYPAD)
692: strlcat(tmp, "KKEYPAD,", sizeof tmp);
693: if (mode & MODE_WRAP)
694: strlcat(tmp, "WRAP,", sizeof tmp);
695: if (mode & MODE_MOUSE_STANDARD)
1.75 nicm 696: strlcat(tmp, "MOUSE_STANDARD,", sizeof tmp);
1.73 nicm 697: if (mode & MODE_MOUSE_BUTTON)
1.75 nicm 698: strlcat(tmp, "MOUSE_BUTTON,", sizeof tmp);
1.76 nicm 699: if (mode & MODE_CURSOR_BLINKING)
700: strlcat(tmp, "CURSOR_BLINKING,", sizeof tmp);
701: if (mode & MODE_CURSOR_VERY_VISIBLE)
702: strlcat(tmp, "CURSOR_VERY_VISIBLE,", sizeof tmp);
1.73 nicm 703: if (mode & MODE_MOUSE_UTF8)
1.83 nicm 704: strlcat(tmp, "MOUSE_UTF8,", sizeof tmp);
1.73 nicm 705: if (mode & MODE_MOUSE_SGR)
1.83 nicm 706: strlcat(tmp, "MOUSE_SGR,", sizeof tmp);
1.73 nicm 707: if (mode & MODE_BRACKETPASTE)
708: strlcat(tmp, "BRACKETPASTE,", sizeof tmp);
709: if (mode & MODE_FOCUSON)
710: strlcat(tmp, "FOCUSON,", sizeof tmp);
711: if (mode & MODE_MOUSE_ALL)
1.75 nicm 712: strlcat(tmp, "MOUSE_ALL,", sizeof tmp);
1.73 nicm 713: if (mode & MODE_ORIGIN)
714: strlcat(tmp, "ORIGIN,", sizeof tmp);
715: if (mode & MODE_CRLF)
716: strlcat(tmp, "CRLF,", sizeof tmp);
717: if (mode & MODE_KEXTENDED)
718: strlcat(tmp, "KEXTENDED,", sizeof tmp);
1.74 nicm 719: tmp[strlen(tmp) - 1] = '\0';
1.73 nicm 720: return (tmp);
1.1 nicm 721: }
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