Annotation of src/usr.bin/tmux/window-copy.c, Revision 1.34
1.34 ! nicm 1: /* $OpenBSD: window-copy.c,v 1.33 2009/11/18 17:03:16 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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:
1.21 nicm 21: #include <stdlib.h>
1.1 nicm 22: #include <string.h>
23:
24: #include "tmux.h"
25:
26: struct screen *window_copy_init(struct window_pane *);
27: void window_copy_free(struct window_pane *);
28: void window_copy_resize(struct window_pane *, u_int, u_int);
29: void window_copy_key(struct window_pane *, struct client *, int);
1.21 nicm 30: int window_copy_key_input(struct window_pane *, int);
1.1 nicm 31: void window_copy_mouse(
1.29 nicm 32: struct window_pane *, struct client *, struct mouse_event *);
1.1 nicm 33:
34: void window_copy_redraw_lines(struct window_pane *, u_int, u_int);
35: void window_copy_redraw_screen(struct window_pane *);
36: void window_copy_write_line(
37: struct window_pane *, struct screen_write_ctx *, u_int);
38: void window_copy_write_lines(
39: struct window_pane *, struct screen_write_ctx *, u_int, u_int);
40:
1.21 nicm 41: void window_copy_scroll_to(struct window_pane *, u_int, u_int);
42: int window_copy_search_compare(
43: struct grid *, u_int, u_int, struct grid *, u_int);
44: int window_copy_search_lr(
45: struct grid *, struct grid *, u_int *, u_int, u_int, u_int);
46: int window_copy_search_rl(
47: struct grid *, struct grid *, u_int *, u_int, u_int, u_int);
48: void window_copy_search_up(struct window_pane *, const char *);
49: void window_copy_search_down(struct window_pane *, const char *);
50: void window_copy_goto_line(struct window_pane *, const char *);
1.18 nicm 51: void window_copy_update_cursor(struct window_pane *, u_int, u_int);
1.1 nicm 52: void window_copy_start_selection(struct window_pane *);
53: int window_copy_update_selection(struct window_pane *);
54: void window_copy_copy_selection(struct window_pane *, struct client *);
55: void window_copy_copy_line(
56: struct window_pane *, char **, size_t *, u_int, u_int, u_int);
57: int window_copy_is_space(struct window_pane *, u_int, u_int);
58: u_int window_copy_find_length(struct window_pane *, u_int);
59: void window_copy_cursor_start_of_line(struct window_pane *);
1.6 nicm 60: void window_copy_cursor_back_to_indentation(struct window_pane *);
1.1 nicm 61: void window_copy_cursor_end_of_line(struct window_pane *);
62: void window_copy_cursor_left(struct window_pane *);
63: void window_copy_cursor_right(struct window_pane *);
1.28 nicm 64: void window_copy_cursor_up(struct window_pane *, int);
65: void window_copy_cursor_down(struct window_pane *, int);
1.1 nicm 66: void window_copy_cursor_next_word(struct window_pane *);
67: void window_copy_cursor_previous_word(struct window_pane *);
68: void window_copy_scroll_up(struct window_pane *, u_int);
69: void window_copy_scroll_down(struct window_pane *, u_int);
70:
71: const struct window_mode window_copy_mode = {
72: window_copy_init,
73: window_copy_free,
74: window_copy_resize,
75: window_copy_key,
76: window_copy_mouse,
77: NULL,
78: };
79:
1.21 nicm 80: enum window_copy_input_type {
81: WINDOW_COPY_OFF,
82: WINDOW_COPY_SEARCHUP,
83: WINDOW_COPY_SEARCHDOWN,
84: WINDOW_COPY_GOTOLINE,
85: };
86:
1.1 nicm 87: struct window_copy_mode_data {
88: struct screen screen;
89:
1.21 nicm 90: struct mode_key_data mdata;
91:
92: u_int oy;
93:
94: u_int selx;
95: u_int sely;
1.1 nicm 96:
1.21 nicm 97: u_int cx;
98: u_int cy;
1.1 nicm 99:
1.25 nicm 100: u_int lastcx; /* position in last line with content */
101: u_int lastsx; /* size of last line with content */
102:
1.21 nicm 103: enum window_copy_input_type inputtype;
104: const char *inputprompt;
105: char *inputstr;
1.1 nicm 106:
1.21 nicm 107: enum window_copy_input_type searchtype;
108: char *searchstr;
1.1 nicm 109: };
110:
111: struct screen *
112: window_copy_init(struct window_pane *wp)
113: {
114: struct window_copy_mode_data *data;
115: struct screen *s;
116: struct screen_write_ctx ctx;
117: u_int i;
1.10 nicm 118: int keys;
1.1 nicm 119:
120: wp->modedata = data = xmalloc(sizeof *data);
121: data->oy = 0;
122: data->cx = wp->base.cx;
123: data->cy = wp->base.cy;
124:
1.25 nicm 125: data->lastcx = 0;
126: data->lastsx = 0;
127:
1.21 nicm 128: data->inputtype = WINDOW_COPY_OFF;
129: data->inputprompt = NULL;
130: data->inputstr = xstrdup("");
131:
132: data->searchtype = WINDOW_COPY_OFF;
133: data->searchstr = NULL;
134:
1.1 nicm 135: s = &data->screen;
136: screen_init(s, screen_size_x(&wp->base), screen_size_y(&wp->base), 0);
1.13 nicm 137: if (options_get_number(&wp->window->options, "mode-mouse"))
138: s->mode |= MODE_MOUSE;
1.1 nicm 139:
1.10 nicm 140: keys = options_get_number(&wp->window->options, "mode-keys");
141: if (keys == MODEKEY_EMACS)
1.12 nicm 142: mode_key_init(&data->mdata, &mode_key_tree_emacs_copy);
1.10 nicm 143: else
1.12 nicm 144: mode_key_init(&data->mdata, &mode_key_tree_vi_copy);
1.1 nicm 145:
146: s->cx = data->cx;
147: s->cy = data->cy;
148:
149: screen_write_start(&ctx, NULL, s);
150: for (i = 0; i < screen_size_y(s); i++)
151: window_copy_write_line(wp, &ctx, i);
152: screen_write_cursormove(&ctx, data->cx, data->cy);
153: screen_write_stop(&ctx);
154:
155: return (s);
156: }
157:
158: void
159: window_copy_free(struct window_pane *wp)
160: {
161: struct window_copy_mode_data *data = wp->modedata;
162:
1.21 nicm 163: if (data->searchstr != NULL)
164: xfree(data->searchstr);
165: xfree(data->inputstr);
166:
1.1 nicm 167: screen_free(&data->screen);
1.21 nicm 168:
1.1 nicm 169: xfree(data);
170: }
171:
172: void
173: window_copy_pageup(struct window_pane *wp)
174: {
175: struct window_copy_mode_data *data = wp->modedata;
176: struct screen *s = &data->screen;
1.19 nicm 177: u_int n;
1.1 nicm 178:
1.19 nicm 179: n = 1;
180: if (screen_size_y(s) > 2)
181: n = screen_size_y(s) - 2;
182: if (data->oy + n > screen_hsize(&wp->base))
1.1 nicm 183: data->oy = screen_hsize(&wp->base);
184: else
1.19 nicm 185: data->oy += n;
1.1 nicm 186: window_copy_update_selection(wp);
187: window_copy_redraw_screen(wp);
188: }
189:
190: void
191: window_copy_resize(struct window_pane *wp, u_int sx, u_int sy)
192: {
193: struct window_copy_mode_data *data = wp->modedata;
194: struct screen *s = &data->screen;
195: struct screen_write_ctx ctx;
196:
197: screen_resize(s, sx, sy);
1.18 nicm 198:
199: if (data->cy > sy - 1)
200: data->cy = sy - 1;
201: if (data->cx > sx)
202: data->cx = sx;
203:
204: screen_clear_selection(&data->screen);
205:
1.1 nicm 206: screen_write_start(&ctx, NULL, s);
207: window_copy_write_lines(wp, &ctx, 0, screen_size_y(s) - 1);
208: screen_write_stop(&ctx);
1.18 nicm 209:
1.17 nicm 210: window_copy_redraw_screen(wp);
1.1 nicm 211: }
212:
213: void
214: window_copy_key(struct window_pane *wp, struct client *c, int key)
215: {
216: struct window_copy_mode_data *data = wp->modedata;
217: struct screen *s = &data->screen;
1.19 nicm 218: u_int n;
1.21 nicm 219: int keys;
220:
221: if (data->inputtype != WINDOW_COPY_OFF) {
222: if (window_copy_key_input(wp, key) != 0)
223: goto input_off;
224: return;
225: }
1.1 nicm 226:
227: switch (mode_key_lookup(&data->mdata, key)) {
1.11 nicm 228: case MODEKEYCOPY_CANCEL:
1.1 nicm 229: window_pane_reset_mode(wp);
230: break;
1.10 nicm 231: case MODEKEYCOPY_LEFT:
1.1 nicm 232: window_copy_cursor_left(wp);
233: return;
1.10 nicm 234: case MODEKEYCOPY_RIGHT:
1.1 nicm 235: window_copy_cursor_right(wp);
236: return;
1.10 nicm 237: case MODEKEYCOPY_UP:
1.28 nicm 238: window_copy_cursor_up(wp, 0);
1.1 nicm 239: return;
1.10 nicm 240: case MODEKEYCOPY_DOWN:
1.28 nicm 241: window_copy_cursor_down(wp, 0);
1.1 nicm 242: return;
1.28 nicm 243: case MODEKEYCOPY_SCROLLUP:
244: window_copy_cursor_up(wp, 1);
245: break;
246: case MODEKEYCOPY_SCROLLDOWN:
247: window_copy_cursor_down(wp, 1);
248: break;
1.10 nicm 249: case MODEKEYCOPY_PREVIOUSPAGE:
1.1 nicm 250: window_copy_pageup(wp);
251: break;
1.10 nicm 252: case MODEKEYCOPY_NEXTPAGE:
1.19 nicm 253: n = 1;
254: if (screen_size_y(s) > 2)
255: n = screen_size_y(s) - 2;
1.20 nicm 256: if (data->oy < n)
257: data->oy = 0;
258: else
259: data->oy -= n;
260: window_copy_update_selection(wp);
261: window_copy_redraw_screen(wp);
262: break;
263: case MODEKEYCOPY_HALFPAGEUP:
264: n = screen_size_y(s) / 2;
265: if (data->oy + n > screen_hsize(&wp->base))
266: data->oy = screen_hsize(&wp->base);
267: else
268: data->oy += n;
269: window_copy_update_selection(wp);
270: window_copy_redraw_screen(wp);
271: break;
272: case MODEKEYCOPY_HALFPAGEDOWN:
273: n = screen_size_y(s) / 2;
1.19 nicm 274: if (data->oy < n)
1.1 nicm 275: data->oy = 0;
276: else
1.19 nicm 277: data->oy -= n;
1.30 nicm 278: window_copy_update_selection(wp);
279: window_copy_redraw_screen(wp);
280: break;
281: case MODEKEYCOPY_TOPLINE:
282: data->cx = 0;
283: data->cy = 0;
284: window_copy_update_selection(wp);
285: window_copy_redraw_screen(wp);
286: break;
287: case MODEKEYCOPY_MIDDLELINE:
288: data->cx = 0;
289: data->cy = (screen_size_y(s) - 1) / 2;
290: window_copy_update_selection(wp);
291: window_copy_redraw_screen(wp);
292: break;
293: case MODEKEYCOPY_BOTTOMLINE:
294: data->cx = 0;
295: data->cy = screen_size_y(s) - 1;
1.1 nicm 296: window_copy_update_selection(wp);
297: window_copy_redraw_screen(wp);
298: break;
1.10 nicm 299: case MODEKEYCOPY_STARTSELECTION:
1.1 nicm 300: window_copy_start_selection(wp);
1.7 nicm 301: window_copy_redraw_screen(wp);
1.1 nicm 302: break;
1.10 nicm 303: case MODEKEYCOPY_CLEARSELECTION:
1.1 nicm 304: screen_clear_selection(&data->screen);
305: window_copy_redraw_screen(wp);
306: break;
1.10 nicm 307: case MODEKEYCOPY_COPYSELECTION:
1.1 nicm 308: if (c != NULL && c->session != NULL) {
309: window_copy_copy_selection(wp, c);
310: window_pane_reset_mode(wp);
311: }
312: break;
1.10 nicm 313: case MODEKEYCOPY_STARTOFLINE:
1.1 nicm 314: window_copy_cursor_start_of_line(wp);
315: break;
1.10 nicm 316: case MODEKEYCOPY_BACKTOINDENTATION:
1.6 nicm 317: window_copy_cursor_back_to_indentation(wp);
318: break;
1.10 nicm 319: case MODEKEYCOPY_ENDOFLINE:
1.1 nicm 320: window_copy_cursor_end_of_line(wp);
321: break;
1.10 nicm 322: case MODEKEYCOPY_NEXTWORD:
1.1 nicm 323: window_copy_cursor_next_word(wp);
324: break;
1.10 nicm 325: case MODEKEYCOPY_PREVIOUSWORD:
1.1 nicm 326: window_copy_cursor_previous_word(wp);
327: break;
1.21 nicm 328: case MODEKEYCOPY_SEARCHUP:
329: data->inputtype = WINDOW_COPY_SEARCHUP;
330: data->inputprompt = "Search Up";
331: goto input_on;
332: case MODEKEYCOPY_SEARCHDOWN:
333: data->inputtype = WINDOW_COPY_SEARCHDOWN;
334: data->inputprompt = "Search Down";
335: goto input_on;
336: case MODEKEYCOPY_SEARCHAGAIN:
337: switch (data->searchtype) {
338: case WINDOW_COPY_OFF:
339: case WINDOW_COPY_GOTOLINE:
340: break;
341: case WINDOW_COPY_SEARCHUP:
342: window_copy_search_up(wp, data->searchstr);
343: break;
344: case WINDOW_COPY_SEARCHDOWN:
345: window_copy_search_down(wp, data->searchstr);
346: break;
347: }
348: break;
349: case MODEKEYCOPY_GOTOLINE:
350: data->inputtype = WINDOW_COPY_GOTOLINE;
351: data->inputprompt = "Goto Line";
352: *data->inputstr = '\0';
353: goto input_on;
354: default:
355: break;
356: }
357:
358: return;
359:
360: input_on:
361: keys = options_get_number(&wp->window->options, "mode-keys");
362: if (keys == MODEKEY_EMACS)
363: mode_key_init(&data->mdata, &mode_key_tree_emacs_edit);
364: else
365: mode_key_init(&data->mdata, &mode_key_tree_vi_edit);
366:
367: window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
368: return;
369:
370: input_off:
371: keys = options_get_number(&wp->window->options, "mode-keys");
372: if (keys == MODEKEY_EMACS)
373: mode_key_init(&data->mdata, &mode_key_tree_emacs_copy);
374: else
375: mode_key_init(&data->mdata, &mode_key_tree_vi_copy);
376:
377: data->inputtype = WINDOW_COPY_OFF;
378: data->inputprompt = NULL;
379:
380: window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
381: }
382:
383: int
384: window_copy_key_input(struct window_pane *wp, int key)
385: {
386: struct window_copy_mode_data *data = wp->modedata;
387: struct screen *s = &data->screen;
388: size_t inputlen;
389:
390: switch (mode_key_lookup(&data->mdata, key)) {
391: case MODEKEYEDIT_CANCEL:
392: return (-1);
393: case MODEKEYEDIT_BACKSPACE:
394: inputlen = strlen(data->inputstr);
395: if (inputlen > 0)
396: data->inputstr[inputlen - 1] = '\0';
1.22 nicm 397: break;
398: case MODEKEYEDIT_DELETELINE:
399: *data->inputstr = '\0';
1.21 nicm 400: break;
401: case MODEKEYEDIT_ENTER:
402: switch (data->inputtype) {
403: case WINDOW_COPY_OFF:
404: break;
405: case WINDOW_COPY_SEARCHUP:
406: window_copy_search_up(wp, data->inputstr);
407: data->searchtype = data->inputtype;
408: data->searchstr = xstrdup(data->inputstr);
409: break;
410: case WINDOW_COPY_SEARCHDOWN:
411: window_copy_search_down(wp, data->inputstr);
412: data->searchtype = data->inputtype;
413: data->searchstr = xstrdup(data->inputstr);
414: break;
415: case WINDOW_COPY_GOTOLINE:
416: window_copy_goto_line(wp, data->inputstr);
417: *data->inputstr = '\0';
418: break;
419: }
420: return (1);
421: case MODEKEY_OTHER:
422: if (key < 32 || key > 126)
423: break;
424: inputlen = strlen(data->inputstr) + 2;
425:
426: data->inputstr = xrealloc(data->inputstr, 1, inputlen);
427: data->inputstr[inputlen - 2] = key;
428: data->inputstr[inputlen - 1] = '\0';
429: break;
1.1 nicm 430: default:
431: break;
432: }
1.21 nicm 433:
434: window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
435: return (0);
1.1 nicm 436: }
437:
1.34 ! nicm 438: /* ARGSUSED */
1.1 nicm 439: void
1.29 nicm 440: window_copy_mouse(
441: struct window_pane *wp, unused struct client *c, struct mouse_event *m)
1.1 nicm 442: {
443: struct window_copy_mode_data *data = wp->modedata;
444: struct screen *s = &data->screen;
445:
1.29 nicm 446: if ((m->b & 3) == 3)
1.1 nicm 447: return;
1.29 nicm 448: if (m->x >= screen_size_x(s))
1.1 nicm 449: return;
1.29 nicm 450: if (m->y >= screen_size_y(s))
1.1 nicm 451: return;
452:
1.29 nicm 453: window_copy_update_cursor(wp, m->x, m->y);
1.1 nicm 454: if (window_copy_update_selection(wp))
455: window_copy_redraw_screen(wp);
456: }
457:
458: void
1.21 nicm 459: window_copy_scroll_to(struct window_pane *wp, u_int px, u_int py)
460: {
461: struct window_copy_mode_data *data = wp->modedata;
462: struct screen *s = &wp->base;
463: struct grid *gd = s->grid;
464: u_int offset, gap;
465:
466: data->cx = px;
467:
468: gap = gd->sy / 4;
469: if (py < gd->sy) {
470: offset = 0;
471: data->cy = py;
472: } else if (py > gd->hsize + gd->sy - gap) {
473: offset = gd->hsize;
474: data->cy = py - gd->hsize;
475: } else {
476: offset = py + gap - gd->sy;
477: data->cy = py - offset;
478: }
479: data->oy = gd->hsize - offset;
480:
481: window_copy_redraw_screen(wp);
482: }
483:
484: int
485: window_copy_search_compare(
486: struct grid *gd, u_int px, u_int py, struct grid *sgd, u_int spx)
487: {
488: const struct grid_cell *gc, *sgc;
489: const struct grid_utf8 *gu, *sgu;
490:
491: gc = grid_peek_cell(gd, px, py);
492: sgc = grid_peek_cell(sgd, spx, 0);
493:
494: if ((gc->flags & GRID_FLAG_UTF8) != (sgc->flags & GRID_FLAG_UTF8))
495: return (0);
496:
497: if (gc->flags & GRID_FLAG_UTF8) {
498: gu = grid_peek_utf8(gd, px, py);
499: sgu = grid_peek_utf8(sgd, spx, 0);
1.32 nicm 500: if (grid_utf8_compare(gu, sgu))
1.21 nicm 501: return (1);
502: } else {
503: if (gc->data == sgc->data)
504: return (1);
505: }
506: return (0);
507: }
508:
509: int
510: window_copy_search_lr(struct grid *gd,
511: struct grid *sgd, u_int *ppx, u_int py, u_int first, u_int last)
512: {
513: u_int ax, bx, px;
514:
515: for (ax = first; ax < last; ax++) {
516: if (ax + sgd->sx >= gd->sx)
517: break;
518: for (bx = 0; bx < sgd->sx; bx++) {
519: px = ax + bx;
520: if (!window_copy_search_compare(gd, px, py, sgd, bx))
521: break;
522: }
523: if (bx == sgd->sx) {
524: *ppx = ax;
525: return (1);
526: }
527: }
528: return (0);
529: }
530:
531: int
532: window_copy_search_rl(struct grid *gd,
533: struct grid *sgd, u_int *ppx, u_int py, u_int first, u_int last)
534: {
535: u_int ax, bx, px;
536:
537: for (ax = last + 1; ax > first; ax--) {
1.24 nicm 538: if (gd->sx - (ax - 1) < sgd->sx)
539: continue;
1.21 nicm 540: for (bx = 0; bx < sgd->sx; bx++) {
541: px = ax - 1 + bx;
542: if (!window_copy_search_compare(gd, px, py, sgd, bx))
543: break;
544: }
545: if (bx == sgd->sx) {
546: *ppx = ax - 1;
547: return (1);
548: }
549: }
550: return (0);
551: }
552:
553: void
554: window_copy_search_up(struct window_pane *wp, const char *searchstr)
555: {
556: struct window_copy_mode_data *data = wp->modedata;
557: struct screen *s = &wp->base, ss;
558: struct screen_write_ctx ctx;
559: struct grid *gd = s->grid, *sgd;
560: struct grid_cell gc;
561: size_t searchlen;
562: u_int i, last, fx, fy, px;
563: int utf8flag, n, wrapped;
564:
565: if (*searchstr == '\0')
566: return;
567: utf8flag = options_get_number(&wp->window->options, "utf8");
568: searchlen = screen_write_strlen(utf8flag, "%s", searchstr);
569:
570: screen_init(&ss, searchlen, 1, 0);
571: screen_write_start(&ctx, NULL, &ss);
572: memcpy(&gc, &grid_default_cell, sizeof gc);
573: screen_write_nputs(&ctx, -1, &gc, utf8flag, "%s", searchstr);
574: screen_write_stop(&ctx);
575:
576: fx = data->cx;
577: fy = gd->hsize - data->oy + data->cy;
578:
579: if (fx == 0) {
580: if (fy == 0)
581: return;
582: fx = gd->sx - 1;
583: fy--;
584: } else
585: fx--;
586: n = wrapped = 0;
587:
588: retry:
589: sgd = ss.grid;
590: for (i = fy + 1; i > 0; i--) {
591: last = screen_size_x(s);
592: if (i == fy + 1)
593: last = fx;
594: n = window_copy_search_rl(gd, sgd, &px, i - 1, 0, last);
595: if (n) {
596: window_copy_scroll_to(wp, px, i - 1);
597: break;
598: }
599: }
600: if (!n && !wrapped) {
601: fx = gd->sx - 1;
602: fy = gd->hsize + gd->sy - 1;
603: wrapped = 1;
604: goto retry;
605: }
606:
607: screen_free(&ss);
608: }
609:
610: void
611: window_copy_search_down(struct window_pane *wp, const char *searchstr)
612: {
613: struct window_copy_mode_data *data = wp->modedata;
614: struct screen *s = &wp->base, ss;
615: struct screen_write_ctx ctx;
616: struct grid *gd = s->grid, *sgd;
617: struct grid_cell gc;
618: size_t searchlen;
619: u_int i, first, fx, fy, px;
620: int utf8flag, n, wrapped;
621:
622: if (*searchstr == '\0')
623: return;
624: utf8flag = options_get_number(&wp->window->options, "utf8");
625: searchlen = screen_write_strlen(utf8flag, "%s", searchstr);
626:
627: screen_init(&ss, searchlen, 1, 0);
628: screen_write_start(&ctx, NULL, &ss);
629: memcpy(&gc, &grid_default_cell, sizeof gc);
630: screen_write_nputs(&ctx, -1, &gc, utf8flag, "%s", searchstr);
631: screen_write_stop(&ctx);
632:
633: fx = data->cx;
634: fy = gd->hsize - data->oy + data->cy;
635:
636: if (fx == gd->sx - 1) {
637: if (fy == gd->hsize + gd->sy)
638: return;
639: fx = 0;
640: fy++;
641: } else
642: fx++;
643: n = wrapped = 0;
644:
645: retry:
646: sgd = ss.grid;
647: for (i = fy + 1; i < gd->hsize + gd->sy; i++) {
648: first = 0;
649: if (i == fy + 1)
650: first = fx;
651: n = window_copy_search_lr(gd, sgd, &px, i - 1, first, gd->sx);
652: if (n) {
653: window_copy_scroll_to(wp, px, i - 1);
654: break;
655: }
656: }
657: if (!n && !wrapped) {
658: fx = 0;
659: fy = 0;
660: wrapped = 1;
661: goto retry;
662: }
663:
664: screen_free(&ss);
665: }
666:
667: void
668: window_copy_goto_line(struct window_pane *wp, const char *linestr)
669: {
670: struct window_copy_mode_data *data = wp->modedata;
671: const char *errstr;
672: u_int lineno;
673:
674: lineno = strtonum(linestr, 0, screen_hsize(&wp->base), &errstr);
675: if (errstr != NULL)
676: return;
677:
678: data->oy = lineno;
679: window_copy_redraw_screen(wp);
680: }
681:
682: void
1.18 nicm 683: window_copy_write_line(
684: struct window_pane *wp, struct screen_write_ctx *ctx, u_int py)
1.1 nicm 685: {
686: struct window_copy_mode_data *data = wp->modedata;
687: struct screen *s = &data->screen;
1.27 nicm 688: struct options *oo = &wp->window->options;
1.1 nicm 689: struct grid_cell gc;
690: char hdr[32];
1.21 nicm 691: size_t last, xoff = 0, size = 0;
692:
693: memcpy(&gc, &grid_default_cell, sizeof gc);
1.27 nicm 694: colour_set_fg(&gc, options_get_number(oo, "mode-fg"));
695: colour_set_bg(&gc, options_get_number(oo, "mode-bg"));
696: gc.attr |= options_get_number(oo, "mode-attr");
1.1 nicm 697:
1.21 nicm 698: last = screen_size_y(s) - 1;
1.1 nicm 699: if (py == 0) {
700: size = xsnprintf(hdr, sizeof hdr,
1.18 nicm 701: "[%u/%u]", data->oy, screen_hsize(&wp->base));
1.1 nicm 702: screen_write_cursormove(ctx, screen_size_x(s) - size, 0);
703: screen_write_puts(ctx, &gc, "%s", hdr);
1.21 nicm 704: } else if (py == last && data->inputtype != WINDOW_COPY_OFF) {
705: xoff = size = xsnprintf(hdr, sizeof hdr,
706: "%s: %s", data->inputprompt, data->inputstr);
707: screen_write_cursormove(ctx, 0, last);
708: screen_write_puts(ctx, &gc, "%s", hdr);
1.1 nicm 709: } else
710: size = 0;
711:
1.21 nicm 712: screen_write_cursormove(ctx, xoff, py);
713: screen_write_copy(ctx, &wp->base, xoff, (screen_hsize(&wp->base) -
1.1 nicm 714: data->oy) + py, screen_size_x(s) - size, 1);
1.18 nicm 715:
716: if (py == data->cy && data->cx == screen_size_x(s)) {
717: memcpy(&gc, &grid_default_cell, sizeof gc);
718: screen_write_cursormove(ctx, screen_size_x(s) - 1, py);
719: screen_write_putc(ctx, &gc, '$');
720: }
1.1 nicm 721: }
722:
723: void
724: window_copy_write_lines(
725: struct window_pane *wp, struct screen_write_ctx *ctx, u_int py, u_int ny)
726: {
727: u_int yy;
728:
729: for (yy = py; yy < py + ny; yy++)
730: window_copy_write_line(wp, ctx, py);
731: }
732:
733: void
734: window_copy_redraw_lines(struct window_pane *wp, u_int py, u_int ny)
735: {
736: struct window_copy_mode_data *data = wp->modedata;
737: struct screen_write_ctx ctx;
738: u_int i;
739:
740: screen_write_start(&ctx, wp, NULL);
741: for (i = py; i < py + ny; i++)
742: window_copy_write_line(wp, &ctx, i);
743: screen_write_cursormove(&ctx, data->cx, data->cy);
744: screen_write_stop(&ctx);
745: }
746:
747: void
748: window_copy_redraw_screen(struct window_pane *wp)
749: {
750: struct window_copy_mode_data *data = wp->modedata;
751:
752: window_copy_redraw_lines(wp, 0, screen_size_y(&data->screen));
753: }
754:
755: void
1.18 nicm 756: window_copy_update_cursor(struct window_pane *wp, u_int cx, u_int cy)
1.1 nicm 757: {
758: struct window_copy_mode_data *data = wp->modedata;
1.18 nicm 759: struct screen *s = &data->screen;
1.1 nicm 760: struct screen_write_ctx ctx;
1.18 nicm 761: u_int old_cx, old_cy;
1.1 nicm 762:
1.18 nicm 763: old_cx = data->cx; old_cy = data->cy;
764: data->cx = cx; data->cy = cy;
765: if (old_cx == screen_size_x(s))
766: window_copy_redraw_lines(wp, old_cy, 1);
767: if (data->cx == screen_size_x(s))
768: window_copy_redraw_lines(wp, data->cy, 1);
769: else {
770: screen_write_start(&ctx, wp, NULL);
771: screen_write_cursormove(&ctx, data->cx, data->cy);
772: screen_write_stop(&ctx);
773: }
1.1 nicm 774: }
775:
776: void
777: window_copy_start_selection(struct window_pane *wp)
778: {
779: struct window_copy_mode_data *data = wp->modedata;
780: struct screen *s = &data->screen;
781:
1.18 nicm 782: data->selx = data->cx;
1.1 nicm 783: data->sely = screen_hsize(&wp->base) + data->cy - data->oy;
784:
785: s->sel.flag = 1;
786: window_copy_update_selection(wp);
787: }
788:
789: int
790: window_copy_update_selection(struct window_pane *wp)
791: {
792: struct window_copy_mode_data *data = wp->modedata;
793: struct screen *s = &data->screen;
1.27 nicm 794: struct options *oo = &wp->window->options;
1.1 nicm 795: struct grid_cell gc;
1.18 nicm 796: u_int sx, sy, ty;
1.1 nicm 797:
798: if (!s->sel.flag)
799: return (0);
800:
801: /* Set colours. */
802: memcpy(&gc, &grid_default_cell, sizeof gc);
1.27 nicm 803: colour_set_fg(&gc, options_get_number(oo, "mode-fg"));
804: colour_set_bg(&gc, options_get_number(oo, "mode-bg"));
805: gc.attr |= options_get_number(oo, "mode-attr");
1.1 nicm 806:
1.18 nicm 807: /* Find top of screen. */
1.1 nicm 808: ty = screen_hsize(&wp->base) - data->oy;
809:
810: /* Adjust the selection. */
811: sx = data->selx;
812: sy = data->sely;
1.18 nicm 813: if (sy < ty) { /* above screen */
1.1 nicm 814: sx = 0;
815: sy = 0;
1.18 nicm 816: } else if (sy > ty + screen_size_y(s) - 1) { /* below screen */
1.1 nicm 817: sx = screen_size_x(s) - 1;
818: sy = screen_size_y(s) - 1;
1.18 nicm 819: } else
1.1 nicm 820: sy -= ty;
821: sy = screen_hsize(s) + sy;
822:
823: screen_set_selection(
824: s, sx, sy, data->cx, screen_hsize(s) + data->cy, &gc);
825: return (1);
826: }
827:
828: void
829: window_copy_copy_selection(struct window_pane *wp, struct client *c)
830: {
831: struct window_copy_mode_data *data = wp->modedata;
832: struct screen *s = &data->screen;
833: char *buf;
834: size_t off;
835: u_int i, xx, yy, sx, sy, ex, ey, limit;
836:
837: if (!s->sel.flag)
838: return;
839:
840: buf = xmalloc(1);
841: off = 0;
842:
843: *buf = '\0';
844:
845: /*
846: * The selection extends from selx,sely to (adjusted) cx,cy on
847: * the base screen.
848: */
849:
850: /* Find start and end. */
1.18 nicm 851: xx = data->cx;
1.1 nicm 852: yy = screen_hsize(&wp->base) + data->cy - data->oy;
1.2 nicm 853: if (yy < data->sely || (yy == data->sely && xx < data->selx)) {
1.1 nicm 854: sx = xx; sy = yy;
855: ex = data->selx; ey = data->sely;
856: } else {
857: sx = data->selx; sy = data->sely;
858: ex = xx; ey = yy;
859: }
860:
861: /* Trim ex to end of line. */
862: xx = window_copy_find_length(wp, ey);
863: if (ex > xx)
864: ex = xx;
865:
866: /* Copy the lines. */
867: if (sy == ey)
868: window_copy_copy_line(wp, &buf, &off, sy, sx, ex);
869: else {
1.16 nicm 870: xx = screen_size_x(s);
1.1 nicm 871: window_copy_copy_line(wp, &buf, &off, sy, sx, xx);
872: if (ey - sy > 1) {
1.16 nicm 873: for (i = sy + 1; i < ey; i++)
1.1 nicm 874: window_copy_copy_line(wp, &buf, &off, i, 0, xx);
875: }
876: window_copy_copy_line(wp, &buf, &off, ey, 0, ex);
877: }
878:
1.26 nicm 879: /* Don't bother if no data. */
880: if (off == 0) {
881: xfree(buf);
882: return;
883: }
884: off--; /* remove final \n */
1.1 nicm 885:
886: /* Add the buffer to the stack. */
887: limit = options_get_number(&c->session->options, "buffer-limit");
1.26 nicm 888: paste_add(&c->session->buffers, buf, off, limit);
1.1 nicm 889: }
890:
891: void
892: window_copy_copy_line(struct window_pane *wp,
893: char **buf, size_t *off, u_int sy, u_int sx, u_int ex)
894: {
1.16 nicm 895: struct grid *gd = wp->base.grid;
1.1 nicm 896: const struct grid_cell *gc;
897: const struct grid_utf8 *gu;
1.16 nicm 898: struct grid_line *gl;
1.32 nicm 899: u_int i, xx, wrapped = 0;
900: size_t size;
1.1 nicm 901:
902: if (sx > ex)
903: return;
904:
1.16 nicm 905: /*
906: * Work out if the line was wrapped at the screen edge and all of it is
907: * on screen.
908: */
909: gl = &gd->linedata[sy];
910: if (gl->flags & GRID_LINE_WRAPPED && gl->cellsize <= gd->sx)
911: wrapped = 1;
912:
913: /* If the line was wrapped, don't strip spaces (use the full length). */
914: if (wrapped)
915: xx = gl->cellsize;
916: else
917: xx = window_copy_find_length(wp, sy);
1.1 nicm 918: if (ex > xx)
919: ex = xx;
920: if (sx > xx)
921: sx = xx;
922:
923: if (sx < ex) {
924: for (i = sx; i < ex; i++) {
1.16 nicm 925: gc = grid_peek_cell(gd, i, sy);
1.1 nicm 926: if (gc->flags & GRID_FLAG_PADDING)
927: continue;
928: if (!(gc->flags & GRID_FLAG_UTF8)) {
929: *buf = xrealloc(*buf, 1, (*off) + 1);
930: (*buf)[(*off)++] = gc->data;
931: } else {
1.16 nicm 932: gu = grid_peek_utf8(gd, i, sy);
1.32 nicm 933: size = grid_utf8_size(gu);
934: *buf = xrealloc(*buf, 1, (*off) + size);
935: *off += grid_utf8_copy(gu, *buf + *off, size);
1.1 nicm 936: }
937: }
938: }
939:
1.16 nicm 940: /* Only add a newline if the line wasn't wrapped. */
941: if (!wrapped) {
942: *buf = xrealloc(*buf, 1, (*off) + 1);
943: (*buf)[(*off)++] = '\n';
944: }
1.1 nicm 945: }
946:
947: int
948: window_copy_is_space(struct window_pane *wp, u_int px, u_int py)
949: {
950: const struct grid_cell *gc;
951: const char *spaces = " -_@";
952:
953: gc = grid_peek_cell(wp->base.grid, px, py);
954: if (gc->flags & (GRID_FLAG_PADDING|GRID_FLAG_UTF8))
955: return (0);
956: if (gc->data == 0x00 || gc->data == 0x7f)
957: return (0);
958: return (strchr(spaces, gc->data) != NULL);
959: }
960:
961: u_int
962: window_copy_find_length(struct window_pane *wp, u_int py)
963: {
964: const struct grid_cell *gc;
965: u_int px;
966:
1.4 nicm 967: /*
968: * If the pane has been resized, its grid can contain old overlong
969: * lines. grid_peek_cell does not allow accessing cells beyond the
970: * width of the grid, and screen_write_copy treats them as spaces, so
971: * ignore them here too.
972: */
1.15 nicm 973: px = wp->base.grid->linedata[py].cellsize;
1.4 nicm 974: if (px > screen_size_x(&wp->base))
975: px = screen_size_x(&wp->base);
1.1 nicm 976: while (px > 0) {
977: gc = grid_peek_cell(wp->base.grid, px - 1, py);
978: if (gc->flags & GRID_FLAG_UTF8)
979: break;
980: if (gc->data != ' ')
981: break;
982: px--;
983: }
984: return (px);
985: }
986:
987: void
1.5 nicm 988: window_copy_cursor_start_of_line(struct window_pane *wp)
989: {
990: struct window_copy_mode_data *data = wp->modedata;
991:
1.18 nicm 992: window_copy_update_cursor(wp, 0, data->cy);
1.5 nicm 993: if (window_copy_update_selection(wp))
994: window_copy_redraw_lines(wp, data->cy, 1);
1.6 nicm 995: }
996:
997: void
998: window_copy_cursor_back_to_indentation(struct window_pane *wp)
999: {
1000: struct window_copy_mode_data *data = wp->modedata;
1001: u_int px, py, xx;
1002: const struct grid_cell *gc;
1003:
1004: px = 0;
1005: py = screen_hsize(&wp->base) + data->cy - data->oy;
1006: xx = window_copy_find_length(wp, py);
1007:
1008: /*
1009: * Don't use window_copy_is_space because that treats some word
1010: * delimiters as spaces.
1011: */
1012: while (px < xx) {
1013: gc = grid_peek_cell(wp->base.grid, px, py);
1014: if (gc->flags & GRID_FLAG_UTF8)
1015: break;
1016: if (gc->data != ' ')
1017: break;
1018: px++;
1019: }
1020:
1.18 nicm 1021: window_copy_update_cursor(wp, px, data->cy);
1022: if (window_copy_update_selection(wp))
1023: window_copy_redraw_lines(wp, data->cy, 1);
1.5 nicm 1024: }
1025:
1026: void
1027: window_copy_cursor_end_of_line(struct window_pane *wp)
1028: {
1029: struct window_copy_mode_data *data = wp->modedata;
1030: u_int px, py;
1031:
1032: py = screen_hsize(&wp->base) + data->cy - data->oy;
1033: px = window_copy_find_length(wp, py);
1034:
1.18 nicm 1035: window_copy_update_cursor(wp, px, data->cy);
1036: if (window_copy_update_selection(wp))
1037: window_copy_redraw_lines(wp, data->cy, 1);
1.5 nicm 1038: }
1039:
1040: void
1.1 nicm 1041: window_copy_cursor_left(struct window_pane *wp)
1042: {
1043: struct window_copy_mode_data *data = wp->modedata;
1044:
1045: if (data->cx == 0) {
1.28 nicm 1046: window_copy_cursor_up(wp, 0);
1.18 nicm 1047: window_copy_cursor_end_of_line(wp);
1.1 nicm 1048: } else {
1.18 nicm 1049: window_copy_update_cursor(wp, data->cx - 1, data->cy);
1.1 nicm 1050: if (window_copy_update_selection(wp))
1051: window_copy_redraw_lines(wp, data->cy, 1);
1052: }
1053: }
1054:
1055: void
1056: window_copy_cursor_right(struct window_pane *wp)
1057: {
1058: struct window_copy_mode_data *data = wp->modedata;
1059: u_int px, py;
1060:
1061: py = screen_hsize(&wp->base) + data->cy - data->oy;
1062: px = window_copy_find_length(wp, py);
1063:
1064: if (data->cx >= px) {
1065: window_copy_cursor_start_of_line(wp);
1.28 nicm 1066: window_copy_cursor_down(wp, 0);
1.1 nicm 1067: } else {
1.18 nicm 1068: window_copy_update_cursor(wp, data->cx + 1, data->cy);
1.1 nicm 1069: if (window_copy_update_selection(wp))
1070: window_copy_redraw_lines(wp, data->cy, 1);
1071: }
1072: }
1073:
1074: void
1.28 nicm 1075: window_copy_cursor_up(struct window_pane *wp, int scroll_only)
1.1 nicm 1076: {
1077: struct window_copy_mode_data *data = wp->modedata;
1078: u_int ox, oy, px, py;
1079:
1080: oy = screen_hsize(&wp->base) + data->cy - data->oy;
1081: ox = window_copy_find_length(wp, oy);
1.25 nicm 1082: if (ox != 0) {
1083: data->lastcx = data->cx;
1084: data->lastsx = ox;
1085: }
1.1 nicm 1086:
1.25 nicm 1087: data->cx = data->lastcx;
1.28 nicm 1088: if (scroll_only || data->cy == 0) {
1.1 nicm 1089: window_copy_scroll_down(wp, 1);
1.31 nicm 1090: if (scroll_only)
1.28 nicm 1091: window_copy_redraw_lines(wp, data->cy, 2);
1092: } else {
1.18 nicm 1093: window_copy_update_cursor(wp, data->cx, data->cy - 1);
1.1 nicm 1094: if (window_copy_update_selection(wp))
1095: window_copy_redraw_lines(wp, data->cy, 2);
1096: }
1097:
1098: py = screen_hsize(&wp->base) + data->cy - data->oy;
1099: px = window_copy_find_length(wp, py);
1.25 nicm 1100: if (data->cx >= data->lastsx || data->cx > px)
1.1 nicm 1101: window_copy_cursor_end_of_line(wp);
1102: }
1103:
1104: void
1.28 nicm 1105: window_copy_cursor_down(struct window_pane *wp, int scroll_only)
1.1 nicm 1106: {
1107: struct window_copy_mode_data *data = wp->modedata;
1108: struct screen *s = &data->screen;
1109: u_int ox, oy, px, py;
1110:
1111: oy = screen_hsize(&wp->base) + data->cy - data->oy;
1112: ox = window_copy_find_length(wp, oy);
1.25 nicm 1113: if (ox != 0) {
1114: data->lastcx = data->cx;
1115: data->lastsx = ox;
1116: }
1.1 nicm 1117:
1.25 nicm 1118: data->cx = data->lastcx;
1.28 nicm 1119: if (scroll_only || data->cy == screen_size_y(s) - 1) {
1.1 nicm 1120: window_copy_scroll_up(wp, 1);
1.31 nicm 1121: if (scroll_only && data->cy > 0)
1.28 nicm 1122: window_copy_redraw_lines(wp, data->cy - 1, 2);
1123: } else {
1.18 nicm 1124: window_copy_update_cursor(wp, data->cx, data->cy + 1);
1.1 nicm 1125: if (window_copy_update_selection(wp))
1126: window_copy_redraw_lines(wp, data->cy - 1, 2);
1127: }
1128:
1129: py = screen_hsize(&wp->base) + data->cy - data->oy;
1130: px = window_copy_find_length(wp, py);
1.25 nicm 1131: if (data->cx >= data->lastsx || data->cx > px)
1.1 nicm 1132: window_copy_cursor_end_of_line(wp);
1133: }
1134:
1135: void
1136: window_copy_cursor_next_word(struct window_pane *wp)
1137: {
1138: struct window_copy_mode_data *data = wp->modedata;
1139: struct screen *s = &data->screen;
1140: u_int px, py, xx, skip;
1141:
1.18 nicm 1142: px = data->cx;
1.1 nicm 1143: py = screen_hsize(&wp->base) + data->cy - data->oy;
1144: xx = window_copy_find_length(wp, py);
1145:
1146: skip = 1;
1147: if (px < xx) {
1148: /* If currently on a space, skip space. */
1149: if (window_copy_is_space(wp, px, py))
1150: skip = 0;
1151: } else
1152: skip = 0;
1153: for (;;) {
1154: if (px >= xx) {
1155: if (skip) {
1156: px = xx;
1157: break;
1158: }
1159:
1160: while (px >= xx) {
1161: if (data->cy == screen_size_y(s) - 1) {
1162: if (data->oy == 0)
1163: goto out;
1164: }
1165:
1166: px = 0;
1.28 nicm 1167: window_copy_cursor_down(wp, 0);
1.1 nicm 1168:
1169: py =screen_hsize(
1170: &wp->base) + data->cy - data->oy;
1171: xx = window_copy_find_length(wp, py);
1172: }
1173: }
1174:
1175: if (skip) {
1176: /* Currently skipping non-space (until space). */
1177: if (window_copy_is_space(wp, px, py))
1178: break;
1179: } else {
1180: /* Currently skipping space (until non-space). */
1181: if (!window_copy_is_space(wp, px, py))
1182: skip = 1;
1183: }
1184:
1185: px++;
1186: }
1.18 nicm 1187:
1.1 nicm 1188: out:
1.18 nicm 1189: window_copy_update_cursor(wp, px, data->cy);
1190: if (window_copy_update_selection(wp))
1191: window_copy_redraw_lines(wp, data->cy, 1);
1.1 nicm 1192: }
1193:
1.8 nicm 1194: /* Move to the previous place where a word begins. */
1.1 nicm 1195: void
1196: window_copy_cursor_previous_word(struct window_pane *wp)
1197: {
1198: struct window_copy_mode_data *data = wp->modedata;
1.8 nicm 1199: u_int px, py;
1.1 nicm 1200:
1.18 nicm 1201: px = data->cx;
1.1 nicm 1202: py = screen_hsize(&wp->base) + data->cy - data->oy;
1203:
1.8 nicm 1204: /* Move back to the previous word character. */
1.1 nicm 1205: for (;;) {
1.8 nicm 1206: if (px > 0) {
1207: px--;
1208: if (!window_copy_is_space(wp, px, py))
1.1 nicm 1209: break;
1.8 nicm 1210: } else {
1211: if (data->cy == 0 &&
1212: (screen_hsize(&wp->base) == 0 ||
1213: data->oy >= screen_hsize(&wp->base) - 1))
1214: goto out;
1.28 nicm 1215: window_copy_cursor_up(wp, 0);
1.1 nicm 1216:
1.8 nicm 1217: py = screen_hsize(
1218: &wp->base) + data->cy - data->oy;
1219: px = window_copy_find_length(wp, py);
1.1 nicm 1220: }
1.8 nicm 1221: }
1.1 nicm 1222:
1.8 nicm 1223: /* Move back to the beginning of this word. */
1224: while (px > 0 && !window_copy_is_space(wp, px - 1, py))
1.1 nicm 1225: px--;
1.8 nicm 1226:
1.1 nicm 1227: out:
1.18 nicm 1228: window_copy_update_cursor(wp, px, data->cy);
1229: if (window_copy_update_selection(wp))
1230: window_copy_redraw_lines(wp, data->cy, 1);
1.1 nicm 1231: }
1232:
1233: void
1234: window_copy_scroll_up(struct window_pane *wp, u_int ny)
1235: {
1236: struct window_copy_mode_data *data = wp->modedata;
1237: struct screen *s = &data->screen;
1238: struct screen_write_ctx ctx;
1239:
1240: if (data->oy < ny)
1241: ny = data->oy;
1242: if (ny == 0)
1243: return;
1244: data->oy -= ny;
1245: window_copy_update_selection(wp);
1246:
1247: screen_write_start(&ctx, wp, NULL);
1248: screen_write_cursormove(&ctx, 0, 0);
1249: screen_write_deleteline(&ctx, ny);
1250: window_copy_write_lines(wp, &ctx, screen_size_y(s) - ny, ny);
1251: window_copy_write_line(wp, &ctx, 0);
1.31 nicm 1252: if (screen_size_y(s) > 1)
1253: window_copy_write_line(wp, &ctx, 1);
1254: if (screen_size_y(s) > 3)
1255: window_copy_write_line(wp, &ctx, screen_size_y(s) - 2);
1.1 nicm 1256: if (s->sel.flag && screen_size_y(s) > ny)
1257: window_copy_write_line(wp, &ctx, screen_size_y(s) - ny - 1);
1258: screen_write_cursormove(&ctx, data->cx, data->cy);
1259: screen_write_stop(&ctx);
1260: }
1261:
1262: void
1263: window_copy_scroll_down(struct window_pane *wp, u_int ny)
1264: {
1265: struct window_copy_mode_data *data = wp->modedata;
1266: struct screen *s = &data->screen;
1267: struct screen_write_ctx ctx;
1268:
1269: if (ny > screen_hsize(&wp->base))
1270: return;
1271:
1272: if (data->oy > screen_hsize(&wp->base) - ny)
1273: ny = screen_hsize(&wp->base) - data->oy;
1274: if (ny == 0)
1275: return;
1276: data->oy += ny;
1277: window_copy_update_selection(wp);
1278:
1279: screen_write_start(&ctx, wp, NULL);
1280: screen_write_cursormove(&ctx, 0, 0);
1281: screen_write_insertline(&ctx, ny);
1282: window_copy_write_lines(wp, &ctx, 0, ny);
1283: if (s->sel.flag && screen_size_y(s) > ny)
1284: window_copy_write_line(wp, &ctx, ny);
1285: else if (ny == 1) /* nuke position */
1286: window_copy_write_line(wp, &ctx, 1);
1287: screen_write_cursormove(&ctx, data->cx, data->cy);
1288: screen_write_stop(&ctx);
1289: }
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