Annotation of src/usr.bin/tmux/window-copy.c, Revision 1.33
1.33 ! nicm 1: /* $OpenBSD: window-copy.c,v 1.32 2009/11/18 17:02:17 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:
438: void
1.29 nicm 439: window_copy_mouse(
440: struct window_pane *wp, unused struct client *c, struct mouse_event *m)
1.1 nicm 441: {
442: struct window_copy_mode_data *data = wp->modedata;
443: struct screen *s = &data->screen;
444:
1.29 nicm 445: if ((m->b & 3) == 3)
1.1 nicm 446: return;
1.29 nicm 447: if (m->x >= screen_size_x(s))
1.1 nicm 448: return;
1.29 nicm 449: if (m->y >= screen_size_y(s))
1.1 nicm 450: return;
451:
1.29 nicm 452: window_copy_update_cursor(wp, m->x, m->y);
1.1 nicm 453: if (window_copy_update_selection(wp))
454: window_copy_redraw_screen(wp);
455: }
456:
457: void
1.21 nicm 458: window_copy_scroll_to(struct window_pane *wp, u_int px, u_int py)
459: {
460: struct window_copy_mode_data *data = wp->modedata;
461: struct screen *s = &wp->base;
462: struct grid *gd = s->grid;
463: u_int offset, gap;
464:
465: data->cx = px;
466:
467: gap = gd->sy / 4;
468: if (py < gd->sy) {
469: offset = 0;
470: data->cy = py;
471: } else if (py > gd->hsize + gd->sy - gap) {
472: offset = gd->hsize;
473: data->cy = py - gd->hsize;
474: } else {
475: offset = py + gap - gd->sy;
476: data->cy = py - offset;
477: }
478: data->oy = gd->hsize - offset;
479:
480: window_copy_redraw_screen(wp);
481: }
482:
483: int
484: window_copy_search_compare(
485: struct grid *gd, u_int px, u_int py, struct grid *sgd, u_int spx)
486: {
487: const struct grid_cell *gc, *sgc;
488: const struct grid_utf8 *gu, *sgu;
489:
490: gc = grid_peek_cell(gd, px, py);
491: sgc = grid_peek_cell(sgd, spx, 0);
492:
493: if ((gc->flags & GRID_FLAG_UTF8) != (sgc->flags & GRID_FLAG_UTF8))
494: return (0);
495:
496: if (gc->flags & GRID_FLAG_UTF8) {
497: gu = grid_peek_utf8(gd, px, py);
498: sgu = grid_peek_utf8(sgd, spx, 0);
1.32 nicm 499: if (grid_utf8_compare(gu, sgu))
1.21 nicm 500: return (1);
501: } else {
502: if (gc->data == sgc->data)
503: return (1);
504: }
505: return (0);
506: }
507:
508: int
509: window_copy_search_lr(struct grid *gd,
510: struct grid *sgd, u_int *ppx, u_int py, u_int first, u_int last)
511: {
512: u_int ax, bx, px;
513:
514: for (ax = first; ax < last; ax++) {
515: if (ax + sgd->sx >= gd->sx)
516: break;
517: for (bx = 0; bx < sgd->sx; bx++) {
518: px = ax + bx;
519: if (!window_copy_search_compare(gd, px, py, sgd, bx))
520: break;
521: }
522: if (bx == sgd->sx) {
523: *ppx = ax;
524: return (1);
525: }
526: }
527: return (0);
528: }
529:
530: int
531: window_copy_search_rl(struct grid *gd,
532: struct grid *sgd, u_int *ppx, u_int py, u_int first, u_int last)
533: {
534: u_int ax, bx, px;
535:
536: for (ax = last + 1; ax > first; ax--) {
1.24 nicm 537: if (gd->sx - (ax - 1) < sgd->sx)
538: continue;
1.21 nicm 539: for (bx = 0; bx < sgd->sx; bx++) {
540: px = ax - 1 + bx;
541: if (!window_copy_search_compare(gd, px, py, sgd, bx))
542: break;
543: }
544: if (bx == sgd->sx) {
545: *ppx = ax - 1;
546: return (1);
547: }
548: }
549: return (0);
550: }
551:
552: void
553: window_copy_search_up(struct window_pane *wp, const char *searchstr)
554: {
555: struct window_copy_mode_data *data = wp->modedata;
556: struct screen *s = &wp->base, ss;
557: struct screen_write_ctx ctx;
558: struct grid *gd = s->grid, *sgd;
559: struct grid_cell gc;
560: size_t searchlen;
561: u_int i, last, fx, fy, px;
562: int utf8flag, n, wrapped;
563:
564: if (*searchstr == '\0')
565: return;
566: utf8flag = options_get_number(&wp->window->options, "utf8");
567: searchlen = screen_write_strlen(utf8flag, "%s", searchstr);
568:
569: screen_init(&ss, searchlen, 1, 0);
570: screen_write_start(&ctx, NULL, &ss);
571: memcpy(&gc, &grid_default_cell, sizeof gc);
572: screen_write_nputs(&ctx, -1, &gc, utf8flag, "%s", searchstr);
573: screen_write_stop(&ctx);
574:
575: fx = data->cx;
576: fy = gd->hsize - data->oy + data->cy;
577:
578: if (fx == 0) {
579: if (fy == 0)
580: return;
581: fx = gd->sx - 1;
582: fy--;
583: } else
584: fx--;
585: n = wrapped = 0;
586:
587: retry:
588: sgd = ss.grid;
589: for (i = fy + 1; i > 0; i--) {
590: last = screen_size_x(s);
591: if (i == fy + 1)
592: last = fx;
593: n = window_copy_search_rl(gd, sgd, &px, i - 1, 0, last);
594: if (n) {
595: window_copy_scroll_to(wp, px, i - 1);
596: break;
597: }
598: }
599: if (!n && !wrapped) {
600: fx = gd->sx - 1;
601: fy = gd->hsize + gd->sy - 1;
602: wrapped = 1;
603: goto retry;
604: }
605:
606: screen_free(&ss);
607: }
608:
609: void
610: window_copy_search_down(struct window_pane *wp, const char *searchstr)
611: {
612: struct window_copy_mode_data *data = wp->modedata;
613: struct screen *s = &wp->base, ss;
614: struct screen_write_ctx ctx;
615: struct grid *gd = s->grid, *sgd;
616: struct grid_cell gc;
617: size_t searchlen;
618: u_int i, first, fx, fy, px;
619: int utf8flag, n, wrapped;
620:
621: if (*searchstr == '\0')
622: return;
623: utf8flag = options_get_number(&wp->window->options, "utf8");
624: searchlen = screen_write_strlen(utf8flag, "%s", searchstr);
625:
626: screen_init(&ss, searchlen, 1, 0);
627: screen_write_start(&ctx, NULL, &ss);
628: memcpy(&gc, &grid_default_cell, sizeof gc);
629: screen_write_nputs(&ctx, -1, &gc, utf8flag, "%s", searchstr);
630: screen_write_stop(&ctx);
631:
632: fx = data->cx;
633: fy = gd->hsize - data->oy + data->cy;
634:
635: if (fx == gd->sx - 1) {
636: if (fy == gd->hsize + gd->sy)
637: return;
638: fx = 0;
639: fy++;
640: } else
641: fx++;
642: n = wrapped = 0;
643:
644: retry:
645: sgd = ss.grid;
646: for (i = fy + 1; i < gd->hsize + gd->sy; i++) {
647: first = 0;
648: if (i == fy + 1)
649: first = fx;
650: n = window_copy_search_lr(gd, sgd, &px, i - 1, first, gd->sx);
651: if (n) {
652: window_copy_scroll_to(wp, px, i - 1);
653: break;
654: }
655: }
656: if (!n && !wrapped) {
657: fx = 0;
658: fy = 0;
659: wrapped = 1;
660: goto retry;
661: }
662:
663: screen_free(&ss);
664: }
665:
666: void
667: window_copy_goto_line(struct window_pane *wp, const char *linestr)
668: {
669: struct window_copy_mode_data *data = wp->modedata;
670: const char *errstr;
671: u_int lineno;
672:
673: lineno = strtonum(linestr, 0, screen_hsize(&wp->base), &errstr);
674: if (errstr != NULL)
675: return;
676:
677: data->oy = lineno;
678: window_copy_redraw_screen(wp);
679: }
680:
681: void
1.18 nicm 682: window_copy_write_line(
683: struct window_pane *wp, struct screen_write_ctx *ctx, u_int py)
1.1 nicm 684: {
685: struct window_copy_mode_data *data = wp->modedata;
686: struct screen *s = &data->screen;
1.27 nicm 687: struct options *oo = &wp->window->options;
1.1 nicm 688: struct grid_cell gc;
689: char hdr[32];
1.21 nicm 690: size_t last, xoff = 0, size = 0;
691:
692: memcpy(&gc, &grid_default_cell, sizeof gc);
1.27 nicm 693: colour_set_fg(&gc, options_get_number(oo, "mode-fg"));
694: colour_set_bg(&gc, options_get_number(oo, "mode-bg"));
695: gc.attr |= options_get_number(oo, "mode-attr");
1.1 nicm 696:
1.21 nicm 697: last = screen_size_y(s) - 1;
1.1 nicm 698: if (py == 0) {
699: size = xsnprintf(hdr, sizeof hdr,
1.18 nicm 700: "[%u/%u]", data->oy, screen_hsize(&wp->base));
1.1 nicm 701: screen_write_cursormove(ctx, screen_size_x(s) - size, 0);
702: screen_write_puts(ctx, &gc, "%s", hdr);
1.21 nicm 703: } else if (py == last && data->inputtype != WINDOW_COPY_OFF) {
704: xoff = size = xsnprintf(hdr, sizeof hdr,
705: "%s: %s", data->inputprompt, data->inputstr);
706: screen_write_cursormove(ctx, 0, last);
707: screen_write_puts(ctx, &gc, "%s", hdr);
1.1 nicm 708: } else
709: size = 0;
710:
1.21 nicm 711: screen_write_cursormove(ctx, xoff, py);
712: screen_write_copy(ctx, &wp->base, xoff, (screen_hsize(&wp->base) -
1.1 nicm 713: data->oy) + py, screen_size_x(s) - size, 1);
1.18 nicm 714:
715: if (py == data->cy && data->cx == screen_size_x(s)) {
716: memcpy(&gc, &grid_default_cell, sizeof gc);
717: screen_write_cursormove(ctx, screen_size_x(s) - 1, py);
718: screen_write_putc(ctx, &gc, '$');
719: }
1.1 nicm 720: }
721:
722: void
723: window_copy_write_lines(
724: struct window_pane *wp, struct screen_write_ctx *ctx, u_int py, u_int ny)
725: {
726: u_int yy;
727:
728: for (yy = py; yy < py + ny; yy++)
729: window_copy_write_line(wp, ctx, py);
730: }
731:
732: void
733: window_copy_redraw_lines(struct window_pane *wp, u_int py, u_int ny)
734: {
735: struct window_copy_mode_data *data = wp->modedata;
736: struct screen_write_ctx ctx;
737: u_int i;
738:
739: screen_write_start(&ctx, wp, NULL);
740: for (i = py; i < py + ny; i++)
741: window_copy_write_line(wp, &ctx, i);
742: screen_write_cursormove(&ctx, data->cx, data->cy);
743: screen_write_stop(&ctx);
744: }
745:
746: void
747: window_copy_redraw_screen(struct window_pane *wp)
748: {
749: struct window_copy_mode_data *data = wp->modedata;
750:
751: window_copy_redraw_lines(wp, 0, screen_size_y(&data->screen));
752: }
753:
754: void
1.18 nicm 755: window_copy_update_cursor(struct window_pane *wp, u_int cx, u_int cy)
1.1 nicm 756: {
757: struct window_copy_mode_data *data = wp->modedata;
1.18 nicm 758: struct screen *s = &data->screen;
1.1 nicm 759: struct screen_write_ctx ctx;
1.18 nicm 760: u_int old_cx, old_cy;
1.1 nicm 761:
1.18 nicm 762: old_cx = data->cx; old_cy = data->cy;
763: data->cx = cx; data->cy = cy;
764: if (old_cx == screen_size_x(s))
765: window_copy_redraw_lines(wp, old_cy, 1);
766: if (data->cx == screen_size_x(s))
767: window_copy_redraw_lines(wp, data->cy, 1);
768: else {
769: screen_write_start(&ctx, wp, NULL);
770: screen_write_cursormove(&ctx, data->cx, data->cy);
771: screen_write_stop(&ctx);
772: }
1.1 nicm 773: }
774:
775: void
776: window_copy_start_selection(struct window_pane *wp)
777: {
778: struct window_copy_mode_data *data = wp->modedata;
779: struct screen *s = &data->screen;
780:
1.18 nicm 781: data->selx = data->cx;
1.1 nicm 782: data->sely = screen_hsize(&wp->base) + data->cy - data->oy;
783:
784: s->sel.flag = 1;
785: window_copy_update_selection(wp);
786: }
787:
788: int
789: window_copy_update_selection(struct window_pane *wp)
790: {
791: struct window_copy_mode_data *data = wp->modedata;
792: struct screen *s = &data->screen;
1.27 nicm 793: struct options *oo = &wp->window->options;
1.1 nicm 794: struct grid_cell gc;
1.18 nicm 795: u_int sx, sy, ty;
1.1 nicm 796:
797: if (!s->sel.flag)
798: return (0);
799:
800: /* Set colours. */
801: memcpy(&gc, &grid_default_cell, sizeof gc);
1.27 nicm 802: colour_set_fg(&gc, options_get_number(oo, "mode-fg"));
803: colour_set_bg(&gc, options_get_number(oo, "mode-bg"));
804: gc.attr |= options_get_number(oo, "mode-attr");
1.1 nicm 805:
1.18 nicm 806: /* Find top of screen. */
1.1 nicm 807: ty = screen_hsize(&wp->base) - data->oy;
808:
809: /* Adjust the selection. */
810: sx = data->selx;
811: sy = data->sely;
1.18 nicm 812: if (sy < ty) { /* above screen */
1.1 nicm 813: sx = 0;
814: sy = 0;
1.18 nicm 815: } else if (sy > ty + screen_size_y(s) - 1) { /* below screen */
1.1 nicm 816: sx = screen_size_x(s) - 1;
817: sy = screen_size_y(s) - 1;
1.18 nicm 818: } else
1.1 nicm 819: sy -= ty;
820: sy = screen_hsize(s) + sy;
821:
822: screen_set_selection(
823: s, sx, sy, data->cx, screen_hsize(s) + data->cy, &gc);
824: return (1);
825: }
826:
827: void
828: window_copy_copy_selection(struct window_pane *wp, struct client *c)
829: {
830: struct window_copy_mode_data *data = wp->modedata;
831: struct screen *s = &data->screen;
832: char *buf;
833: size_t off;
834: u_int i, xx, yy, sx, sy, ex, ey, limit;
835:
836: if (!s->sel.flag)
837: return;
838:
839: buf = xmalloc(1);
840: off = 0;
841:
842: *buf = '\0';
843:
844: /*
845: * The selection extends from selx,sely to (adjusted) cx,cy on
846: * the base screen.
847: */
848:
849: /* Find start and end. */
1.18 nicm 850: xx = data->cx;
1.1 nicm 851: yy = screen_hsize(&wp->base) + data->cy - data->oy;
1.2 nicm 852: if (yy < data->sely || (yy == data->sely && xx < data->selx)) {
1.1 nicm 853: sx = xx; sy = yy;
854: ex = data->selx; ey = data->sely;
855: } else {
856: sx = data->selx; sy = data->sely;
857: ex = xx; ey = yy;
858: }
859:
860: /* Trim ex to end of line. */
861: xx = window_copy_find_length(wp, ey);
862: if (ex > xx)
863: ex = xx;
864:
865: /* Copy the lines. */
866: if (sy == ey)
867: window_copy_copy_line(wp, &buf, &off, sy, sx, ex);
868: else {
1.16 nicm 869: xx = screen_size_x(s);
1.1 nicm 870: window_copy_copy_line(wp, &buf, &off, sy, sx, xx);
871: if (ey - sy > 1) {
1.16 nicm 872: for (i = sy + 1; i < ey; i++)
1.1 nicm 873: window_copy_copy_line(wp, &buf, &off, i, 0, xx);
874: }
875: window_copy_copy_line(wp, &buf, &off, ey, 0, ex);
876: }
877:
1.26 nicm 878: /* Don't bother if no data. */
879: if (off == 0) {
880: xfree(buf);
881: return;
882: }
883: off--; /* remove final \n */
1.1 nicm 884:
885: /* Add the buffer to the stack. */
886: limit = options_get_number(&c->session->options, "buffer-limit");
1.26 nicm 887: paste_add(&c->session->buffers, buf, off, limit);
1.1 nicm 888: }
889:
890: void
891: window_copy_copy_line(struct window_pane *wp,
892: char **buf, size_t *off, u_int sy, u_int sx, u_int ex)
893: {
1.16 nicm 894: struct grid *gd = wp->base.grid;
1.1 nicm 895: const struct grid_cell *gc;
896: const struct grid_utf8 *gu;
1.16 nicm 897: struct grid_line *gl;
1.32 nicm 898: u_int i, xx, wrapped = 0;
899: size_t size;
1.1 nicm 900:
901: if (sx > ex)
902: return;
903:
1.16 nicm 904: /*
905: * Work out if the line was wrapped at the screen edge and all of it is
906: * on screen.
907: */
908: gl = &gd->linedata[sy];
909: if (gl->flags & GRID_LINE_WRAPPED && gl->cellsize <= gd->sx)
910: wrapped = 1;
911:
912: /* If the line was wrapped, don't strip spaces (use the full length). */
913: if (wrapped)
914: xx = gl->cellsize;
915: else
916: xx = window_copy_find_length(wp, sy);
1.1 nicm 917: if (ex > xx)
918: ex = xx;
919: if (sx > xx)
920: sx = xx;
921:
922: if (sx < ex) {
923: for (i = sx; i < ex; i++) {
1.16 nicm 924: gc = grid_peek_cell(gd, i, sy);
1.1 nicm 925: if (gc->flags & GRID_FLAG_PADDING)
926: continue;
927: if (!(gc->flags & GRID_FLAG_UTF8)) {
928: *buf = xrealloc(*buf, 1, (*off) + 1);
929: (*buf)[(*off)++] = gc->data;
930: } else {
1.16 nicm 931: gu = grid_peek_utf8(gd, i, sy);
1.32 nicm 932: size = grid_utf8_size(gu);
933: *buf = xrealloc(*buf, 1, (*off) + size);
934: *off += grid_utf8_copy(gu, *buf + *off, size);
1.1 nicm 935: }
936: }
937: }
938:
1.16 nicm 939: /* Only add a newline if the line wasn't wrapped. */
940: if (!wrapped) {
941: *buf = xrealloc(*buf, 1, (*off) + 1);
942: (*buf)[(*off)++] = '\n';
943: }
1.1 nicm 944: }
945:
946: int
947: window_copy_is_space(struct window_pane *wp, u_int px, u_int py)
948: {
949: const struct grid_cell *gc;
950: const char *spaces = " -_@";
951:
952: gc = grid_peek_cell(wp->base.grid, px, py);
953: if (gc->flags & (GRID_FLAG_PADDING|GRID_FLAG_UTF8))
954: return (0);
955: if (gc->data == 0x00 || gc->data == 0x7f)
956: return (0);
957: return (strchr(spaces, gc->data) != NULL);
958: }
959:
960: u_int
961: window_copy_find_length(struct window_pane *wp, u_int py)
962: {
963: const struct grid_cell *gc;
964: u_int px;
965:
1.4 nicm 966: /*
967: * If the pane has been resized, its grid can contain old overlong
968: * lines. grid_peek_cell does not allow accessing cells beyond the
969: * width of the grid, and screen_write_copy treats them as spaces, so
970: * ignore them here too.
971: */
1.15 nicm 972: px = wp->base.grid->linedata[py].cellsize;
1.4 nicm 973: if (px > screen_size_x(&wp->base))
974: px = screen_size_x(&wp->base);
1.1 nicm 975: while (px > 0) {
976: gc = grid_peek_cell(wp->base.grid, px - 1, py);
977: if (gc->flags & GRID_FLAG_UTF8)
978: break;
979: if (gc->data != ' ')
980: break;
981: px--;
982: }
983: return (px);
984: }
985:
986: void
1.5 nicm 987: window_copy_cursor_start_of_line(struct window_pane *wp)
988: {
989: struct window_copy_mode_data *data = wp->modedata;
990:
1.18 nicm 991: window_copy_update_cursor(wp, 0, data->cy);
1.5 nicm 992: if (window_copy_update_selection(wp))
993: window_copy_redraw_lines(wp, data->cy, 1);
1.6 nicm 994: }
995:
996: void
997: window_copy_cursor_back_to_indentation(struct window_pane *wp)
998: {
999: struct window_copy_mode_data *data = wp->modedata;
1000: u_int px, py, xx;
1001: const struct grid_cell *gc;
1002:
1003: px = 0;
1004: py = screen_hsize(&wp->base) + data->cy - data->oy;
1005: xx = window_copy_find_length(wp, py);
1006:
1007: /*
1008: * Don't use window_copy_is_space because that treats some word
1009: * delimiters as spaces.
1010: */
1011: while (px < xx) {
1012: gc = grid_peek_cell(wp->base.grid, px, py);
1013: if (gc->flags & GRID_FLAG_UTF8)
1014: break;
1015: if (gc->data != ' ')
1016: break;
1017: px++;
1018: }
1019:
1.18 nicm 1020: window_copy_update_cursor(wp, px, data->cy);
1021: if (window_copy_update_selection(wp))
1022: window_copy_redraw_lines(wp, data->cy, 1);
1.5 nicm 1023: }
1024:
1025: void
1026: window_copy_cursor_end_of_line(struct window_pane *wp)
1027: {
1028: struct window_copy_mode_data *data = wp->modedata;
1029: u_int px, py;
1030:
1031: py = screen_hsize(&wp->base) + data->cy - data->oy;
1032: px = window_copy_find_length(wp, py);
1033:
1.18 nicm 1034: window_copy_update_cursor(wp, px, data->cy);
1035: if (window_copy_update_selection(wp))
1036: window_copy_redraw_lines(wp, data->cy, 1);
1.5 nicm 1037: }
1038:
1039: void
1.1 nicm 1040: window_copy_cursor_left(struct window_pane *wp)
1041: {
1042: struct window_copy_mode_data *data = wp->modedata;
1043:
1044: if (data->cx == 0) {
1.28 nicm 1045: window_copy_cursor_up(wp, 0);
1.18 nicm 1046: window_copy_cursor_end_of_line(wp);
1.1 nicm 1047: } else {
1.18 nicm 1048: window_copy_update_cursor(wp, data->cx - 1, data->cy);
1.1 nicm 1049: if (window_copy_update_selection(wp))
1050: window_copy_redraw_lines(wp, data->cy, 1);
1051: }
1052: }
1053:
1054: void
1055: window_copy_cursor_right(struct window_pane *wp)
1056: {
1057: struct window_copy_mode_data *data = wp->modedata;
1058: u_int px, py;
1059:
1060: py = screen_hsize(&wp->base) + data->cy - data->oy;
1061: px = window_copy_find_length(wp, py);
1062:
1063: if (data->cx >= px) {
1064: window_copy_cursor_start_of_line(wp);
1.28 nicm 1065: window_copy_cursor_down(wp, 0);
1.1 nicm 1066: } else {
1.18 nicm 1067: window_copy_update_cursor(wp, data->cx + 1, data->cy);
1.1 nicm 1068: if (window_copy_update_selection(wp))
1069: window_copy_redraw_lines(wp, data->cy, 1);
1070: }
1071: }
1072:
1073: void
1.28 nicm 1074: window_copy_cursor_up(struct window_pane *wp, int scroll_only)
1.1 nicm 1075: {
1076: struct window_copy_mode_data *data = wp->modedata;
1077: u_int ox, oy, px, py;
1078:
1079: oy = screen_hsize(&wp->base) + data->cy - data->oy;
1080: ox = window_copy_find_length(wp, oy);
1.25 nicm 1081: if (ox != 0) {
1082: data->lastcx = data->cx;
1083: data->lastsx = ox;
1084: }
1.1 nicm 1085:
1.25 nicm 1086: data->cx = data->lastcx;
1.28 nicm 1087: if (scroll_only || data->cy == 0) {
1.1 nicm 1088: window_copy_scroll_down(wp, 1);
1.31 nicm 1089: if (scroll_only)
1.28 nicm 1090: window_copy_redraw_lines(wp, data->cy, 2);
1091: } else {
1.18 nicm 1092: window_copy_update_cursor(wp, data->cx, data->cy - 1);
1.1 nicm 1093: if (window_copy_update_selection(wp))
1094: window_copy_redraw_lines(wp, data->cy, 2);
1095: }
1096:
1097: py = screen_hsize(&wp->base) + data->cy - data->oy;
1098: px = window_copy_find_length(wp, py);
1.25 nicm 1099: if (data->cx >= data->lastsx || data->cx > px)
1.1 nicm 1100: window_copy_cursor_end_of_line(wp);
1101: }
1102:
1103: void
1.28 nicm 1104: window_copy_cursor_down(struct window_pane *wp, int scroll_only)
1.1 nicm 1105: {
1106: struct window_copy_mode_data *data = wp->modedata;
1107: struct screen *s = &data->screen;
1108: u_int ox, oy, px, py;
1109:
1110: oy = screen_hsize(&wp->base) + data->cy - data->oy;
1111: ox = window_copy_find_length(wp, oy);
1.25 nicm 1112: if (ox != 0) {
1113: data->lastcx = data->cx;
1114: data->lastsx = ox;
1115: }
1.1 nicm 1116:
1.25 nicm 1117: data->cx = data->lastcx;
1.28 nicm 1118: if (scroll_only || data->cy == screen_size_y(s) - 1) {
1.1 nicm 1119: window_copy_scroll_up(wp, 1);
1.31 nicm 1120: if (scroll_only && data->cy > 0)
1.28 nicm 1121: window_copy_redraw_lines(wp, data->cy - 1, 2);
1122: } else {
1.18 nicm 1123: window_copy_update_cursor(wp, data->cx, data->cy + 1);
1.1 nicm 1124: if (window_copy_update_selection(wp))
1125: window_copy_redraw_lines(wp, data->cy - 1, 2);
1126: }
1127:
1128: py = screen_hsize(&wp->base) + data->cy - data->oy;
1129: px = window_copy_find_length(wp, py);
1.25 nicm 1130: if (data->cx >= data->lastsx || data->cx > px)
1.1 nicm 1131: window_copy_cursor_end_of_line(wp);
1132: }
1133:
1134: void
1135: window_copy_cursor_next_word(struct window_pane *wp)
1136: {
1137: struct window_copy_mode_data *data = wp->modedata;
1138: struct screen *s = &data->screen;
1139: u_int px, py, xx, skip;
1140:
1.18 nicm 1141: px = data->cx;
1.1 nicm 1142: py = screen_hsize(&wp->base) + data->cy - data->oy;
1143: xx = window_copy_find_length(wp, py);
1144:
1145: skip = 1;
1146: if (px < xx) {
1147: /* If currently on a space, skip space. */
1148: if (window_copy_is_space(wp, px, py))
1149: skip = 0;
1150: } else
1151: skip = 0;
1152: for (;;) {
1153: if (px >= xx) {
1154: if (skip) {
1155: px = xx;
1156: break;
1157: }
1158:
1159: while (px >= xx) {
1160: if (data->cy == screen_size_y(s) - 1) {
1161: if (data->oy == 0)
1162: goto out;
1163: }
1164:
1165: px = 0;
1.28 nicm 1166: window_copy_cursor_down(wp, 0);
1.1 nicm 1167:
1168: py =screen_hsize(
1169: &wp->base) + data->cy - data->oy;
1170: xx = window_copy_find_length(wp, py);
1171: }
1172: }
1173:
1174: if (skip) {
1175: /* Currently skipping non-space (until space). */
1176: if (window_copy_is_space(wp, px, py))
1177: break;
1178: } else {
1179: /* Currently skipping space (until non-space). */
1180: if (!window_copy_is_space(wp, px, py))
1181: skip = 1;
1182: }
1183:
1184: px++;
1185: }
1.18 nicm 1186:
1.1 nicm 1187: out:
1.18 nicm 1188: window_copy_update_cursor(wp, px, data->cy);
1189: if (window_copy_update_selection(wp))
1190: window_copy_redraw_lines(wp, data->cy, 1);
1.1 nicm 1191: }
1192:
1.8 nicm 1193: /* Move to the previous place where a word begins. */
1.1 nicm 1194: void
1195: window_copy_cursor_previous_word(struct window_pane *wp)
1196: {
1197: struct window_copy_mode_data *data = wp->modedata;
1.8 nicm 1198: u_int px, py;
1.1 nicm 1199:
1.18 nicm 1200: px = data->cx;
1.1 nicm 1201: py = screen_hsize(&wp->base) + data->cy - data->oy;
1202:
1.8 nicm 1203: /* Move back to the previous word character. */
1.1 nicm 1204: for (;;) {
1.8 nicm 1205: if (px > 0) {
1206: px--;
1207: if (!window_copy_is_space(wp, px, py))
1.1 nicm 1208: break;
1.8 nicm 1209: } else {
1210: if (data->cy == 0 &&
1211: (screen_hsize(&wp->base) == 0 ||
1212: data->oy >= screen_hsize(&wp->base) - 1))
1213: goto out;
1.28 nicm 1214: window_copy_cursor_up(wp, 0);
1.1 nicm 1215:
1.8 nicm 1216: py = screen_hsize(
1217: &wp->base) + data->cy - data->oy;
1218: px = window_copy_find_length(wp, py);
1.1 nicm 1219: }
1.8 nicm 1220: }
1.1 nicm 1221:
1.8 nicm 1222: /* Move back to the beginning of this word. */
1223: while (px > 0 && !window_copy_is_space(wp, px - 1, py))
1.1 nicm 1224: px--;
1.8 nicm 1225:
1.1 nicm 1226: out:
1.18 nicm 1227: window_copy_update_cursor(wp, px, data->cy);
1228: if (window_copy_update_selection(wp))
1229: window_copy_redraw_lines(wp, data->cy, 1);
1.1 nicm 1230: }
1231:
1232: void
1233: window_copy_scroll_up(struct window_pane *wp, u_int ny)
1234: {
1235: struct window_copy_mode_data *data = wp->modedata;
1236: struct screen *s = &data->screen;
1237: struct screen_write_ctx ctx;
1238:
1239: if (data->oy < ny)
1240: ny = data->oy;
1241: if (ny == 0)
1242: return;
1243: data->oy -= ny;
1244: window_copy_update_selection(wp);
1245:
1246: screen_write_start(&ctx, wp, NULL);
1247: screen_write_cursormove(&ctx, 0, 0);
1248: screen_write_deleteline(&ctx, ny);
1249: window_copy_write_lines(wp, &ctx, screen_size_y(s) - ny, ny);
1250: window_copy_write_line(wp, &ctx, 0);
1.31 nicm 1251: if (screen_size_y(s) > 1)
1252: window_copy_write_line(wp, &ctx, 1);
1253: if (screen_size_y(s) > 3)
1254: window_copy_write_line(wp, &ctx, screen_size_y(s) - 2);
1.1 nicm 1255: if (s->sel.flag && screen_size_y(s) > ny)
1256: window_copy_write_line(wp, &ctx, screen_size_y(s) - ny - 1);
1257: screen_write_cursormove(&ctx, data->cx, data->cy);
1258: screen_write_stop(&ctx);
1259: }
1260:
1261: void
1262: window_copy_scroll_down(struct window_pane *wp, u_int ny)
1263: {
1264: struct window_copy_mode_data *data = wp->modedata;
1265: struct screen *s = &data->screen;
1266: struct screen_write_ctx ctx;
1267:
1268: if (ny > screen_hsize(&wp->base))
1269: return;
1270:
1271: if (data->oy > screen_hsize(&wp->base) - ny)
1272: ny = screen_hsize(&wp->base) - data->oy;
1273: if (ny == 0)
1274: return;
1275: data->oy += ny;
1276: window_copy_update_selection(wp);
1277:
1278: screen_write_start(&ctx, wp, NULL);
1279: screen_write_cursormove(&ctx, 0, 0);
1280: screen_write_insertline(&ctx, ny);
1281: window_copy_write_lines(wp, &ctx, 0, ny);
1282: if (s->sel.flag && screen_size_y(s) > ny)
1283: window_copy_write_line(wp, &ctx, ny);
1284: else if (ny == 1) /* nuke position */
1285: window_copy_write_line(wp, &ctx, 1);
1286: screen_write_cursormove(&ctx, data->cx, data->cy);
1287: screen_write_stop(&ctx);
1288: }
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