1 /* vi:set ts=8 sts=4 sw=4 noet: 2 * 3 * VIM - Vi IMproved by Bram Moolenaar 4 * 5 * Do ":help uganda" in Vim to read a list of people who contributed. 6 * Do ":help credits" in Vim to see a list of people who contributed. 7 * See README.txt for an overview of the Vim source code. 8 */ 9 10 #include "vim.h" 11 12 static void cmd_with_count(char *cmd, char_u *bufp, size_t bufsize, long Prenum); 13 static void win_init(win_T *newp, win_T *oldp, int flags); 14 static void win_init_some(win_T *newp, win_T *oldp); 15 static void frame_comp_pos(frame_T *topfrp, int *row, int *col); 16 static void frame_setheight(frame_T *curfrp, int height); 17 static void frame_setwidth(frame_T *curfrp, int width); 18 static void win_exchange(long); 19 static void win_rotate(int, int); 20 static void win_totop(int size, int flags); 21 static void win_equal_rec(win_T *next_curwin, int current, frame_T *topfr, int dir, int col, int row, int width, int height); 22 static win_T *win_free_mem(win_T *win, int *dirp, tabpage_T *tp); 23 static frame_T *win_altframe(win_T *win, tabpage_T *tp); 24 static tabpage_T *alt_tabpage(void); 25 static win_T *frame2win(frame_T *frp); 26 static int frame_has_win(frame_T *frp, win_T *wp); 27 static void frame_new_height(frame_T *topfrp, int height, int topfirst, int wfh); 28 static int frame_fixed_height(frame_T *frp); 29 static int frame_fixed_width(frame_T *frp); 30 static void frame_add_statusline(frame_T *frp); 31 static void frame_new_width(frame_T *topfrp, int width, int leftfirst, int wfw); 32 static void frame_add_vsep(frame_T *frp); 33 static int frame_minwidth(frame_T *topfrp, win_T *next_curwin); 34 static void frame_fix_width(win_T *wp); 35 static int win_alloc_firstwin(win_T *oldwin); 36 static void new_frame(win_T *wp); 37 static tabpage_T *alloc_tabpage(void); 38 static int leave_tabpage(buf_T *new_curbuf, int trigger_leave_autocmds); 39 static void enter_tabpage(tabpage_T *tp, buf_T *old_curbuf, int trigger_enter_autocmds, int trigger_leave_autocmds); 40 static void frame_fix_height(win_T *wp); 41 static int frame_minheight(frame_T *topfrp, win_T *next_curwin); 42 static int may_open_tabpage(void); 43 static void win_enter_ext(win_T *wp, int undo_sync, int no_curwin, int trigger_new_autocmds, int trigger_enter_autocmds, int trigger_leave_autocmds); 44 static void win_free(win_T *wp, tabpage_T *tp); 45 static int win_unlisted(win_T *wp); 46 static void win_append(win_T *after, win_T *wp); 47 static void frame_append(frame_T *after, frame_T *frp); 48 static void frame_insert(frame_T *before, frame_T *frp); 49 static void frame_remove(frame_T *frp); 50 static void win_goto_ver(int up, long count); 51 static void win_goto_hor(int left, long count); 52 static void frame_add_height(frame_T *frp, int n); 53 static void last_status_rec(frame_T *fr, int statusline); 54 55 static void make_snapshot_rec(frame_T *fr, frame_T **frp); 56 static void clear_snapshot(tabpage_T *tp, int idx); 57 static void clear_snapshot_rec(frame_T *fr); 58 static int check_snapshot_rec(frame_T *sn, frame_T *fr); 59 static win_T *restore_snapshot_rec(frame_T *sn, frame_T *fr); 60 61 static int frame_check_height(frame_T *topfrp, int height); 62 static int frame_check_width(frame_T *topfrp, int width); 63 64 static win_T *win_alloc(win_T *after, int hidden); 65 66 #define NOWIN (win_T *)-1 /* non-existing window */ 67 68 #define ROWS_AVAIL (Rows - p_ch - tabline_height()) 69 70 static char *m_onlyone = N_("Already only one window"); 71 72 // When non-zero splitting a window is forbidden. Used to avoid that nasty 73 // autocommands mess up the window structure. 74 static int split_disallowed = 0; 75 76 // #define WIN_DEBUG 77 #ifdef WIN_DEBUG 78 /* 79 * Call this method to log the current window layout. 80 */ 81 static void 82 log_frame_layout(frame_T *frame) 83 { 84 ch_log(NULL, "layout %s, wi: %d, he: %d, wwi: %d, whe: %d, id: %d", 85 frame->fr_layout == FR_LEAF ? "LEAF" 86 : frame->fr_layout == FR_ROW ? "ROW" : "COL", 87 frame->fr_width, 88 frame->fr_height, 89 frame->fr_win == NULL ? -1 : frame->fr_win->w_width, 90 frame->fr_win == NULL ? -1 : frame->fr_win->w_height, 91 frame->fr_win == NULL ? -1 : frame->fr_win->w_id); 92 if (frame->fr_child != NULL) 93 { 94 ch_log(NULL, "children"); 95 log_frame_layout(frame->fr_child); 96 if (frame->fr_next != NULL) 97 ch_log(NULL, "END of children"); 98 } 99 if (frame->fr_next != NULL) 100 log_frame_layout(frame->fr_next); 101 } 102 #endif 103 104 /* 105 * All CTRL-W window commands are handled here, called from normal_cmd(). 106 */ 107 void 108 do_window( 109 int nchar, 110 long Prenum, 111 int xchar) /* extra char from ":wincmd gx" or NUL */ 112 { 113 long Prenum1; 114 win_T *wp; 115 #if defined(FEAT_SEARCHPATH) || defined(FEAT_FIND_ID) 116 char_u *ptr; 117 linenr_T lnum = -1; 118 #endif 119 #ifdef FEAT_FIND_ID 120 int type = FIND_DEFINE; 121 int len; 122 #endif 123 char_u cbuf[40]; 124 125 if (ERROR_IF_POPUP_WINDOW) 126 return; 127 128 #ifdef FEAT_CMDWIN 129 # define CHECK_CMDWIN \ 130 do { \ 131 if (cmdwin_type != 0) \ 132 { \ 133 emsg(_(e_cmdwin)); \ 134 return; \ 135 } \ 136 } while (0) 137 #else 138 # define CHECK_CMDWIN do { /**/ } while (0) 139 #endif 140 141 Prenum1 = Prenum == 0 ? 1 : Prenum; 142 143 switch (nchar) 144 { 145 /* split current window in two parts, horizontally */ 146 case 'S': 147 case Ctrl_S: 148 case 's': 149 CHECK_CMDWIN; 150 reset_VIsual_and_resel(); /* stop Visual mode */ 151 #ifdef FEAT_QUICKFIX 152 /* When splitting the quickfix window open a new buffer in it, 153 * don't replicate the quickfix buffer. */ 154 if (bt_quickfix(curbuf)) 155 goto newwindow; 156 #endif 157 #ifdef FEAT_GUI 158 need_mouse_correct = TRUE; 159 #endif 160 (void)win_split((int)Prenum, 0); 161 break; 162 163 /* split current window in two parts, vertically */ 164 case Ctrl_V: 165 case 'v': 166 CHECK_CMDWIN; 167 reset_VIsual_and_resel(); /* stop Visual mode */ 168 #ifdef FEAT_QUICKFIX 169 /* When splitting the quickfix window open a new buffer in it, 170 * don't replicate the quickfix buffer. */ 171 if (bt_quickfix(curbuf)) 172 goto newwindow; 173 #endif 174 #ifdef FEAT_GUI 175 need_mouse_correct = TRUE; 176 #endif 177 (void)win_split((int)Prenum, WSP_VERT); 178 break; 179 180 /* split current window and edit alternate file */ 181 case Ctrl_HAT: 182 case '^': 183 CHECK_CMDWIN; 184 reset_VIsual_and_resel(); /* stop Visual mode */ 185 186 if (buflist_findnr(Prenum == 0 187 ? curwin->w_alt_fnum : Prenum) == NULL) 188 { 189 if (Prenum == 0) 190 emsg(_(e_noalt)); 191 else 192 semsg(_("E92: Buffer %ld not found"), Prenum); 193 break; 194 } 195 196 if (!curbuf_locked() && win_split(0, 0) == OK) 197 (void)buflist_getfile( 198 Prenum == 0 ? curwin->w_alt_fnum : Prenum, 199 (linenr_T)0, GETF_ALT, FALSE); 200 break; 201 202 /* open new window */ 203 case Ctrl_N: 204 case 'n': 205 CHECK_CMDWIN; 206 reset_VIsual_and_resel(); /* stop Visual mode */ 207 #ifdef FEAT_QUICKFIX 208 newwindow: 209 #endif 210 if (Prenum) 211 /* window height */ 212 vim_snprintf((char *)cbuf, sizeof(cbuf) - 5, "%ld", Prenum); 213 else 214 cbuf[0] = NUL; 215 #if defined(FEAT_QUICKFIX) 216 if (nchar == 'v' || nchar == Ctrl_V) 217 STRCAT(cbuf, "v"); 218 #endif 219 STRCAT(cbuf, "new"); 220 do_cmdline_cmd(cbuf); 221 break; 222 223 /* quit current window */ 224 case Ctrl_Q: 225 case 'q': 226 reset_VIsual_and_resel(); /* stop Visual mode */ 227 cmd_with_count("quit", cbuf, sizeof(cbuf), Prenum); 228 do_cmdline_cmd(cbuf); 229 break; 230 231 /* close current window */ 232 case Ctrl_C: 233 case 'c': 234 reset_VIsual_and_resel(); /* stop Visual mode */ 235 cmd_with_count("close", cbuf, sizeof(cbuf), Prenum); 236 do_cmdline_cmd(cbuf); 237 break; 238 239 #if defined(FEAT_QUICKFIX) 240 /* close preview window */ 241 case Ctrl_Z: 242 case 'z': 243 CHECK_CMDWIN; 244 reset_VIsual_and_resel(); /* stop Visual mode */ 245 do_cmdline_cmd((char_u *)"pclose"); 246 break; 247 248 /* cursor to preview window */ 249 case 'P': 250 FOR_ALL_WINDOWS(wp) 251 if (wp->w_p_pvw) 252 break; 253 if (wp == NULL) 254 emsg(_("E441: There is no preview window")); 255 else 256 win_goto(wp); 257 break; 258 #endif 259 260 /* close all but current window */ 261 case Ctrl_O: 262 case 'o': 263 CHECK_CMDWIN; 264 reset_VIsual_and_resel(); /* stop Visual mode */ 265 cmd_with_count("only", cbuf, sizeof(cbuf), Prenum); 266 do_cmdline_cmd(cbuf); 267 break; 268 269 /* cursor to next window with wrap around */ 270 case Ctrl_W: 271 case 'w': 272 /* cursor to previous window with wrap around */ 273 case 'W': 274 CHECK_CMDWIN; 275 if (ONE_WINDOW && Prenum != 1) /* just one window */ 276 beep_flush(); 277 else 278 { 279 if (Prenum) /* go to specified window */ 280 { 281 for (wp = firstwin; --Prenum > 0; ) 282 { 283 if (wp->w_next == NULL) 284 break; 285 else 286 wp = wp->w_next; 287 } 288 } 289 else 290 { 291 if (nchar == 'W') /* go to previous window */ 292 { 293 wp = curwin->w_prev; 294 if (wp == NULL) 295 wp = lastwin; /* wrap around */ 296 } 297 else /* go to next window */ 298 { 299 wp = curwin->w_next; 300 if (wp == NULL) 301 wp = firstwin; /* wrap around */ 302 } 303 } 304 win_goto(wp); 305 } 306 break; 307 308 /* cursor to window below */ 309 case 'j': 310 case K_DOWN: 311 case Ctrl_J: 312 CHECK_CMDWIN; 313 win_goto_ver(FALSE, Prenum1); 314 break; 315 316 /* cursor to window above */ 317 case 'k': 318 case K_UP: 319 case Ctrl_K: 320 CHECK_CMDWIN; 321 win_goto_ver(TRUE, Prenum1); 322 break; 323 324 /* cursor to left window */ 325 case 'h': 326 case K_LEFT: 327 case Ctrl_H: 328 case K_BS: 329 CHECK_CMDWIN; 330 win_goto_hor(TRUE, Prenum1); 331 break; 332 333 /* cursor to right window */ 334 case 'l': 335 case K_RIGHT: 336 case Ctrl_L: 337 CHECK_CMDWIN; 338 win_goto_hor(FALSE, Prenum1); 339 break; 340 341 /* move window to new tab page */ 342 case 'T': 343 if (one_window()) 344 msg(_(m_onlyone)); 345 else 346 { 347 tabpage_T *oldtab = curtab; 348 tabpage_T *newtab; 349 350 /* First create a new tab with the window, then go back to 351 * the old tab and close the window there. */ 352 wp = curwin; 353 if (win_new_tabpage((int)Prenum) == OK 354 && valid_tabpage(oldtab)) 355 { 356 newtab = curtab; 357 goto_tabpage_tp(oldtab, TRUE, TRUE); 358 if (curwin == wp) 359 win_close(curwin, FALSE); 360 if (valid_tabpage(newtab)) 361 goto_tabpage_tp(newtab, TRUE, TRUE); 362 } 363 } 364 break; 365 366 /* cursor to top-left window */ 367 case 't': 368 case Ctrl_T: 369 win_goto(firstwin); 370 break; 371 372 /* cursor to bottom-right window */ 373 case 'b': 374 case Ctrl_B: 375 win_goto(lastwin); 376 break; 377 378 /* cursor to last accessed (previous) window */ 379 case 'p': 380 case Ctrl_P: 381 if (!win_valid(prevwin)) 382 beep_flush(); 383 else 384 win_goto(prevwin); 385 break; 386 387 /* exchange current and next window */ 388 case 'x': 389 case Ctrl_X: 390 CHECK_CMDWIN; 391 win_exchange(Prenum); 392 break; 393 394 /* rotate windows downwards */ 395 case Ctrl_R: 396 case 'r': 397 CHECK_CMDWIN; 398 reset_VIsual_and_resel(); /* stop Visual mode */ 399 win_rotate(FALSE, (int)Prenum1); /* downwards */ 400 break; 401 402 /* rotate windows upwards */ 403 case 'R': 404 CHECK_CMDWIN; 405 reset_VIsual_and_resel(); /* stop Visual mode */ 406 win_rotate(TRUE, (int)Prenum1); /* upwards */ 407 break; 408 409 /* move window to the very top/bottom/left/right */ 410 case 'K': 411 case 'J': 412 case 'H': 413 case 'L': 414 CHECK_CMDWIN; 415 win_totop((int)Prenum, 416 ((nchar == 'H' || nchar == 'L') ? WSP_VERT : 0) 417 | ((nchar == 'H' || nchar == 'K') ? WSP_TOP : WSP_BOT)); 418 break; 419 420 /* make all windows the same height */ 421 case '=': 422 #ifdef FEAT_GUI 423 need_mouse_correct = TRUE; 424 #endif 425 win_equal(NULL, FALSE, 'b'); 426 break; 427 428 /* increase current window height */ 429 case '+': 430 #ifdef FEAT_GUI 431 need_mouse_correct = TRUE; 432 #endif 433 win_setheight(curwin->w_height + (int)Prenum1); 434 break; 435 436 /* decrease current window height */ 437 case '-': 438 #ifdef FEAT_GUI 439 need_mouse_correct = TRUE; 440 #endif 441 win_setheight(curwin->w_height - (int)Prenum1); 442 break; 443 444 /* set current window height */ 445 case Ctrl__: 446 case '_': 447 #ifdef FEAT_GUI 448 need_mouse_correct = TRUE; 449 #endif 450 win_setheight(Prenum ? (int)Prenum : 9999); 451 break; 452 453 /* increase current window width */ 454 case '>': 455 #ifdef FEAT_GUI 456 need_mouse_correct = TRUE; 457 #endif 458 win_setwidth(curwin->w_width + (int)Prenum1); 459 break; 460 461 /* decrease current window width */ 462 case '<': 463 #ifdef FEAT_GUI 464 need_mouse_correct = TRUE; 465 #endif 466 win_setwidth(curwin->w_width - (int)Prenum1); 467 break; 468 469 /* set current window width */ 470 case '|': 471 #ifdef FEAT_GUI 472 need_mouse_correct = TRUE; 473 #endif 474 win_setwidth(Prenum != 0 ? (int)Prenum : 9999); 475 break; 476 477 /* jump to tag and split window if tag exists (in preview window) */ 478 #if defined(FEAT_QUICKFIX) 479 case '}': 480 CHECK_CMDWIN; 481 if (Prenum) 482 g_do_tagpreview = Prenum; 483 else 484 g_do_tagpreview = p_pvh; 485 #endif 486 /* FALLTHROUGH */ 487 case ']': 488 case Ctrl_RSB: 489 CHECK_CMDWIN; 490 /* keep Visual mode, can select words to use as a tag */ 491 if (Prenum) 492 postponed_split = Prenum; 493 else 494 postponed_split = -1; 495 #ifdef FEAT_QUICKFIX 496 if (nchar != '}') 497 g_do_tagpreview = 0; 498 #endif 499 500 /* Execute the command right here, required when "wincmd ]" 501 * was used in a function. */ 502 do_nv_ident(Ctrl_RSB, NUL); 503 break; 504 505 #ifdef FEAT_SEARCHPATH 506 /* edit file name under cursor in a new window */ 507 case 'f': 508 case 'F': 509 case Ctrl_F: 510 wingotofile: 511 CHECK_CMDWIN; 512 513 ptr = grab_file_name(Prenum1, &lnum); 514 if (ptr != NULL) 515 { 516 tabpage_T *oldtab = curtab; 517 win_T *oldwin = curwin; 518 # ifdef FEAT_GUI 519 need_mouse_correct = TRUE; 520 # endif 521 setpcmark(); 522 if (win_split(0, 0) == OK) 523 { 524 RESET_BINDING(curwin); 525 if (do_ecmd(0, ptr, NULL, NULL, ECMD_LASTL, 526 ECMD_HIDE, NULL) == FAIL) 527 { 528 /* Failed to open the file, close the window 529 * opened for it. */ 530 win_close(curwin, FALSE); 531 goto_tabpage_win(oldtab, oldwin); 532 } 533 else if (nchar == 'F' && lnum >= 0) 534 { 535 curwin->w_cursor.lnum = lnum; 536 check_cursor_lnum(); 537 beginline(BL_SOL | BL_FIX); 538 } 539 } 540 vim_free(ptr); 541 } 542 break; 543 #endif 544 545 #ifdef FEAT_FIND_ID 546 /* Go to the first occurrence of the identifier under cursor along path in a 547 * new window -- webb 548 */ 549 case 'i': /* Go to any match */ 550 case Ctrl_I: 551 type = FIND_ANY; 552 /* FALLTHROUGH */ 553 case 'd': /* Go to definition, using 'define' */ 554 case Ctrl_D: 555 CHECK_CMDWIN; 556 if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0) 557 break; 558 find_pattern_in_path(ptr, 0, len, TRUE, 559 Prenum == 0 ? TRUE : FALSE, type, 560 Prenum1, ACTION_SPLIT, (linenr_T)1, (linenr_T)MAXLNUM); 561 curwin->w_set_curswant = TRUE; 562 break; 563 #endif 564 565 /* Quickfix window only: view the result under the cursor in a new split. */ 566 #if defined(FEAT_QUICKFIX) 567 case K_KENTER: 568 case CAR: 569 if (bt_quickfix(curbuf)) 570 qf_view_result(TRUE); 571 break; 572 #endif 573 574 /* CTRL-W g extended commands */ 575 case 'g': 576 case Ctrl_G: 577 CHECK_CMDWIN; 578 #ifdef USE_ON_FLY_SCROLL 579 dont_scroll = TRUE; /* disallow scrolling here */ 580 #endif 581 ++no_mapping; 582 ++allow_keys; /* no mapping for xchar, but allow key codes */ 583 if (xchar == NUL) 584 xchar = plain_vgetc(); 585 LANGMAP_ADJUST(xchar, TRUE); 586 --no_mapping; 587 --allow_keys; 588 #ifdef FEAT_CMDL_INFO 589 (void)add_to_showcmd(xchar); 590 #endif 591 switch (xchar) 592 { 593 #if defined(FEAT_QUICKFIX) 594 case '}': 595 xchar = Ctrl_RSB; 596 if (Prenum) 597 g_do_tagpreview = Prenum; 598 else 599 g_do_tagpreview = p_pvh; 600 #endif 601 /* FALLTHROUGH */ 602 case ']': 603 case Ctrl_RSB: 604 /* keep Visual mode, can select words to use as a tag */ 605 if (Prenum) 606 postponed_split = Prenum; 607 else 608 postponed_split = -1; 609 610 /* Execute the command right here, required when 611 * "wincmd g}" was used in a function. */ 612 do_nv_ident('g', xchar); 613 break; 614 615 #ifdef FEAT_SEARCHPATH 616 case 'f': /* CTRL-W gf: "gf" in a new tab page */ 617 case 'F': /* CTRL-W gF: "gF" in a new tab page */ 618 cmdmod.tab = tabpage_index(curtab) + 1; 619 nchar = xchar; 620 goto wingotofile; 621 #endif 622 case 't': // CTRL-W gt: go to next tab page 623 goto_tabpage((int)Prenum); 624 break; 625 626 case 'T': // CTRL-W gT: go to previous tab page 627 goto_tabpage(-(int)Prenum1); 628 break; 629 630 default: 631 beep_flush(); 632 break; 633 } 634 break; 635 636 default: beep_flush(); 637 break; 638 } 639 } 640 641 /* 642 * Figure out the address type for ":wincmd". 643 */ 644 void 645 get_wincmd_addr_type(char_u *arg, exarg_T *eap) 646 { 647 switch (*arg) 648 { 649 case 'S': 650 case Ctrl_S: 651 case 's': 652 case Ctrl_N: 653 case 'n': 654 case 'j': 655 case Ctrl_J: 656 case 'k': 657 case Ctrl_K: 658 case 'T': 659 case Ctrl_R: 660 case 'r': 661 case 'R': 662 case 'K': 663 case 'J': 664 case '+': 665 case '-': 666 case Ctrl__: 667 case '_': 668 case '|': 669 case ']': 670 case Ctrl_RSB: 671 case 'g': 672 case Ctrl_G: 673 case Ctrl_V: 674 case 'v': 675 case 'h': 676 case Ctrl_H: 677 case 'l': 678 case Ctrl_L: 679 case 'H': 680 case 'L': 681 case '>': 682 case '<': 683 #if defined(FEAT_QUICKFIX) 684 case '}': 685 #endif 686 #ifdef FEAT_SEARCHPATH 687 case 'f': 688 case 'F': 689 case Ctrl_F: 690 #endif 691 #ifdef FEAT_FIND_ID 692 case 'i': 693 case Ctrl_I: 694 case 'd': 695 case Ctrl_D: 696 #endif 697 // window size or any count 698 eap->addr_type = ADDR_OTHER; 699 break; 700 701 case Ctrl_HAT: 702 case '^': 703 // buffer number 704 eap->addr_type = ADDR_BUFFERS; 705 break; 706 707 case Ctrl_Q: 708 case 'q': 709 case Ctrl_C: 710 case 'c': 711 case Ctrl_O: 712 case 'o': 713 case Ctrl_W: 714 case 'w': 715 case 'W': 716 case 'x': 717 case Ctrl_X: 718 // window number 719 eap->addr_type = ADDR_WINDOWS; 720 break; 721 722 #if defined(FEAT_QUICKFIX) 723 case Ctrl_Z: 724 case 'z': 725 case 'P': 726 #endif 727 case 't': 728 case Ctrl_T: 729 case 'b': 730 case Ctrl_B: 731 case 'p': 732 case Ctrl_P: 733 case '=': 734 case CAR: 735 // no count 736 eap->addr_type = ADDR_NONE; 737 break; 738 } 739 } 740 741 static void 742 cmd_with_count( 743 char *cmd, 744 char_u *bufp, 745 size_t bufsize, 746 long Prenum) 747 { 748 size_t len = STRLEN(cmd); 749 750 STRCPY(bufp, cmd); 751 if (Prenum > 0) 752 vim_snprintf((char *)bufp + len, bufsize - len, "%ld", Prenum); 753 } 754 755 /* 756 * If "split_disallowed" is set given an error and return FAIL. 757 * Otherwise return OK. 758 */ 759 static int 760 check_split_disallowed() 761 { 762 if (split_disallowed > 0) 763 { 764 emsg(_("E242: Can't split a window while closing another")); 765 return FAIL; 766 } 767 return OK; 768 } 769 770 /* 771 * split the current window, implements CTRL-W s and :split 772 * 773 * "size" is the height or width for the new window, 0 to use half of current 774 * height or width. 775 * 776 * "flags": 777 * WSP_ROOM: require enough room for new window 778 * WSP_VERT: vertical split. 779 * WSP_TOP: open window at the top-left of the shell (help window). 780 * WSP_BOT: open window at the bottom-right of the shell (quickfix window). 781 * WSP_HELP: creating the help window, keep layout snapshot 782 * 783 * return FAIL for failure, OK otherwise 784 */ 785 int 786 win_split(int size, int flags) 787 { 788 if (ERROR_IF_POPUP_WINDOW) 789 return FAIL; 790 791 /* When the ":tab" modifier was used open a new tab page instead. */ 792 if (may_open_tabpage() == OK) 793 return OK; 794 795 /* Add flags from ":vertical", ":topleft" and ":botright". */ 796 flags |= cmdmod.split; 797 if ((flags & WSP_TOP) && (flags & WSP_BOT)) 798 { 799 emsg(_("E442: Can't split topleft and botright at the same time")); 800 return FAIL; 801 } 802 if (check_split_disallowed() == FAIL) 803 return FAIL; 804 805 /* When creating the help window make a snapshot of the window layout. 806 * Otherwise clear the snapshot, it's now invalid. */ 807 if (flags & WSP_HELP) 808 make_snapshot(SNAP_HELP_IDX); 809 else 810 clear_snapshot(curtab, SNAP_HELP_IDX); 811 812 return win_split_ins(size, flags, NULL, 0); 813 } 814 815 /* 816 * When "new_wp" is NULL: split the current window in two. 817 * When "new_wp" is not NULL: insert this window at the far 818 * top/left/right/bottom. 819 * return FAIL for failure, OK otherwise 820 */ 821 int 822 win_split_ins( 823 int size, 824 int flags, 825 win_T *new_wp, 826 int dir) 827 { 828 win_T *wp = new_wp; 829 win_T *oldwin; 830 int new_size = size; 831 int i; 832 int need_status = 0; 833 int do_equal = FALSE; 834 int needed; 835 int available; 836 int oldwin_height = 0; 837 int layout; 838 frame_T *frp, *curfrp, *frp2, *prevfrp; 839 int before; 840 int minheight; 841 int wmh1; 842 int did_set_fraction = FALSE; 843 844 if (flags & WSP_TOP) 845 oldwin = firstwin; 846 else if (flags & WSP_BOT) 847 oldwin = lastwin; 848 else 849 oldwin = curwin; 850 851 /* add a status line when p_ls == 1 and splitting the first window */ 852 if (ONE_WINDOW && p_ls == 1 && oldwin->w_status_height == 0) 853 { 854 if (VISIBLE_HEIGHT(oldwin) <= p_wmh && new_wp == NULL) 855 { 856 emsg(_(e_noroom)); 857 return FAIL; 858 } 859 need_status = STATUS_HEIGHT; 860 } 861 862 #ifdef FEAT_GUI 863 /* May be needed for the scrollbars that are going to change. */ 864 if (gui.in_use) 865 out_flush(); 866 #endif 867 868 if (flags & WSP_VERT) 869 { 870 int wmw1; 871 int minwidth; 872 873 layout = FR_ROW; 874 875 /* 876 * Check if we are able to split the current window and compute its 877 * width. 878 */ 879 /* Current window requires at least 1 space. */ 880 wmw1 = (p_wmw == 0 ? 1 : p_wmw); 881 needed = wmw1 + 1; 882 if (flags & WSP_ROOM) 883 needed += p_wiw - wmw1; 884 if (flags & (WSP_BOT | WSP_TOP)) 885 { 886 minwidth = frame_minwidth(topframe, NOWIN); 887 available = topframe->fr_width; 888 needed += minwidth; 889 } 890 else if (p_ea) 891 { 892 minwidth = frame_minwidth(oldwin->w_frame, NOWIN); 893 prevfrp = oldwin->w_frame; 894 for (frp = oldwin->w_frame->fr_parent; frp != NULL; 895 frp = frp->fr_parent) 896 { 897 if (frp->fr_layout == FR_ROW) 898 FOR_ALL_FRAMES(frp2, frp->fr_child) 899 if (frp2 != prevfrp) 900 minwidth += frame_minwidth(frp2, NOWIN); 901 prevfrp = frp; 902 } 903 available = topframe->fr_width; 904 needed += minwidth; 905 } 906 else 907 { 908 minwidth = frame_minwidth(oldwin->w_frame, NOWIN); 909 available = oldwin->w_frame->fr_width; 910 needed += minwidth; 911 } 912 if (available < needed && new_wp == NULL) 913 { 914 emsg(_(e_noroom)); 915 return FAIL; 916 } 917 if (new_size == 0) 918 new_size = oldwin->w_width / 2; 919 if (new_size > available - minwidth - 1) 920 new_size = available - minwidth - 1; 921 if (new_size < wmw1) 922 new_size = wmw1; 923 924 /* if it doesn't fit in the current window, need win_equal() */ 925 if (oldwin->w_width - new_size - 1 < p_wmw) 926 do_equal = TRUE; 927 928 /* We don't like to take lines for the new window from a 929 * 'winfixwidth' window. Take them from a window to the left or right 930 * instead, if possible. Add one for the separator. */ 931 if (oldwin->w_p_wfw) 932 win_setwidth_win(oldwin->w_width + new_size + 1, oldwin); 933 934 /* Only make all windows the same width if one of them (except oldwin) 935 * is wider than one of the split windows. */ 936 if (!do_equal && p_ea && size == 0 && *p_ead != 'v' 937 && oldwin->w_frame->fr_parent != NULL) 938 { 939 frp = oldwin->w_frame->fr_parent->fr_child; 940 while (frp != NULL) 941 { 942 if (frp->fr_win != oldwin && frp->fr_win != NULL 943 && (frp->fr_win->w_width > new_size 944 || frp->fr_win->w_width > oldwin->w_width 945 - new_size - 1)) 946 { 947 do_equal = TRUE; 948 break; 949 } 950 frp = frp->fr_next; 951 } 952 } 953 } 954 else 955 { 956 layout = FR_COL; 957 958 /* 959 * Check if we are able to split the current window and compute its 960 * height. 961 */ 962 /* Current window requires at least 1 space. */ 963 wmh1 = (p_wmh == 0 ? 1 : p_wmh) + WINBAR_HEIGHT(curwin); 964 needed = wmh1 + STATUS_HEIGHT; 965 if (flags & WSP_ROOM) 966 needed += p_wh - wmh1; 967 if (flags & (WSP_BOT | WSP_TOP)) 968 { 969 minheight = frame_minheight(topframe, NOWIN) + need_status; 970 available = topframe->fr_height; 971 needed += minheight; 972 } 973 else if (p_ea) 974 { 975 minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; 976 prevfrp = oldwin->w_frame; 977 for (frp = oldwin->w_frame->fr_parent; frp != NULL; 978 frp = frp->fr_parent) 979 { 980 if (frp->fr_layout == FR_COL) 981 FOR_ALL_FRAMES(frp2, frp->fr_child) 982 if (frp2 != prevfrp) 983 minheight += frame_minheight(frp2, NOWIN); 984 prevfrp = frp; 985 } 986 available = topframe->fr_height; 987 needed += minheight; 988 } 989 else 990 { 991 minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; 992 available = oldwin->w_frame->fr_height; 993 needed += minheight; 994 } 995 if (available < needed && new_wp == NULL) 996 { 997 emsg(_(e_noroom)); 998 return FAIL; 999 } 1000 oldwin_height = oldwin->w_height; 1001 if (need_status) 1002 { 1003 oldwin->w_status_height = STATUS_HEIGHT; 1004 oldwin_height -= STATUS_HEIGHT; 1005 } 1006 if (new_size == 0) 1007 new_size = oldwin_height / 2; 1008 if (new_size > available - minheight - STATUS_HEIGHT) 1009 new_size = available - minheight - STATUS_HEIGHT; 1010 if (new_size < wmh1) 1011 new_size = wmh1; 1012 1013 /* if it doesn't fit in the current window, need win_equal() */ 1014 if (oldwin_height - new_size - STATUS_HEIGHT < p_wmh) 1015 do_equal = TRUE; 1016 1017 /* We don't like to take lines for the new window from a 1018 * 'winfixheight' window. Take them from a window above or below 1019 * instead, if possible. */ 1020 if (oldwin->w_p_wfh) 1021 { 1022 /* Set w_fraction now so that the cursor keeps the same relative 1023 * vertical position using the old height. */ 1024 set_fraction(oldwin); 1025 did_set_fraction = TRUE; 1026 1027 win_setheight_win(oldwin->w_height + new_size + STATUS_HEIGHT, 1028 oldwin); 1029 oldwin_height = oldwin->w_height; 1030 if (need_status) 1031 oldwin_height -= STATUS_HEIGHT; 1032 } 1033 1034 /* Only make all windows the same height if one of them (except oldwin) 1035 * is higher than one of the split windows. */ 1036 if (!do_equal && p_ea && size == 0 && *p_ead != 'h' 1037 && oldwin->w_frame->fr_parent != NULL) 1038 { 1039 frp = oldwin->w_frame->fr_parent->fr_child; 1040 while (frp != NULL) 1041 { 1042 if (frp->fr_win != oldwin && frp->fr_win != NULL 1043 && (frp->fr_win->w_height > new_size 1044 || frp->fr_win->w_height > oldwin_height - new_size 1045 - STATUS_HEIGHT)) 1046 { 1047 do_equal = TRUE; 1048 break; 1049 } 1050 frp = frp->fr_next; 1051 } 1052 } 1053 } 1054 1055 /* 1056 * allocate new window structure and link it in the window list 1057 */ 1058 if ((flags & WSP_TOP) == 0 1059 && ((flags & WSP_BOT) 1060 || (flags & WSP_BELOW) 1061 || (!(flags & WSP_ABOVE) 1062 && ( (flags & WSP_VERT) ? p_spr : p_sb)))) 1063 { 1064 /* new window below/right of current one */ 1065 if (new_wp == NULL) 1066 wp = win_alloc(oldwin, FALSE); 1067 else 1068 win_append(oldwin, wp); 1069 } 1070 else 1071 { 1072 if (new_wp == NULL) 1073 wp = win_alloc(oldwin->w_prev, FALSE); 1074 else 1075 win_append(oldwin->w_prev, wp); 1076 } 1077 1078 if (new_wp == NULL) 1079 { 1080 if (wp == NULL) 1081 return FAIL; 1082 1083 new_frame(wp); 1084 if (wp->w_frame == NULL) 1085 { 1086 win_free(wp, NULL); 1087 return FAIL; 1088 } 1089 1090 /* make the contents of the new window the same as the current one */ 1091 win_init(wp, curwin, flags); 1092 } 1093 1094 /* 1095 * Reorganise the tree of frames to insert the new window. 1096 */ 1097 if (flags & (WSP_TOP | WSP_BOT)) 1098 { 1099 if ((topframe->fr_layout == FR_COL && (flags & WSP_VERT) == 0) 1100 || (topframe->fr_layout == FR_ROW && (flags & WSP_VERT) != 0)) 1101 { 1102 curfrp = topframe->fr_child; 1103 if (flags & WSP_BOT) 1104 while (curfrp->fr_next != NULL) 1105 curfrp = curfrp->fr_next; 1106 } 1107 else 1108 curfrp = topframe; 1109 before = (flags & WSP_TOP); 1110 } 1111 else 1112 { 1113 curfrp = oldwin->w_frame; 1114 if (flags & WSP_BELOW) 1115 before = FALSE; 1116 else if (flags & WSP_ABOVE) 1117 before = TRUE; 1118 else if (flags & WSP_VERT) 1119 before = !p_spr; 1120 else 1121 before = !p_sb; 1122 } 1123 if (curfrp->fr_parent == NULL || curfrp->fr_parent->fr_layout != layout) 1124 { 1125 /* Need to create a new frame in the tree to make a branch. */ 1126 frp = ALLOC_CLEAR_ONE(frame_T); 1127 *frp = *curfrp; 1128 curfrp->fr_layout = layout; 1129 frp->fr_parent = curfrp; 1130 frp->fr_next = NULL; 1131 frp->fr_prev = NULL; 1132 curfrp->fr_child = frp; 1133 curfrp->fr_win = NULL; 1134 curfrp = frp; 1135 if (frp->fr_win != NULL) 1136 oldwin->w_frame = frp; 1137 else 1138 FOR_ALL_FRAMES(frp, frp->fr_child) 1139 frp->fr_parent = curfrp; 1140 } 1141 1142 if (new_wp == NULL) 1143 frp = wp->w_frame; 1144 else 1145 frp = new_wp->w_frame; 1146 frp->fr_parent = curfrp->fr_parent; 1147 1148 /* Insert the new frame at the right place in the frame list. */ 1149 if (before) 1150 frame_insert(curfrp, frp); 1151 else 1152 frame_append(curfrp, frp); 1153 1154 /* Set w_fraction now so that the cursor keeps the same relative 1155 * vertical position. */ 1156 if (!did_set_fraction) 1157 set_fraction(oldwin); 1158 wp->w_fraction = oldwin->w_fraction; 1159 1160 if (flags & WSP_VERT) 1161 { 1162 wp->w_p_scr = curwin->w_p_scr; 1163 1164 if (need_status) 1165 { 1166 win_new_height(oldwin, oldwin->w_height - 1); 1167 oldwin->w_status_height = need_status; 1168 } 1169 if (flags & (WSP_TOP | WSP_BOT)) 1170 { 1171 /* set height and row of new window to full height */ 1172 wp->w_winrow = tabline_height(); 1173 win_new_height(wp, curfrp->fr_height - (p_ls > 0) 1174 - WINBAR_HEIGHT(wp)); 1175 wp->w_status_height = (p_ls > 0); 1176 } 1177 else 1178 { 1179 /* height and row of new window is same as current window */ 1180 wp->w_winrow = oldwin->w_winrow; 1181 win_new_height(wp, VISIBLE_HEIGHT(oldwin)); 1182 wp->w_status_height = oldwin->w_status_height; 1183 } 1184 frp->fr_height = curfrp->fr_height; 1185 1186 /* "new_size" of the current window goes to the new window, use 1187 * one column for the vertical separator */ 1188 win_new_width(wp, new_size); 1189 if (before) 1190 wp->w_vsep_width = 1; 1191 else 1192 { 1193 wp->w_vsep_width = oldwin->w_vsep_width; 1194 oldwin->w_vsep_width = 1; 1195 } 1196 if (flags & (WSP_TOP | WSP_BOT)) 1197 { 1198 if (flags & WSP_BOT) 1199 frame_add_vsep(curfrp); 1200 /* Set width of neighbor frame */ 1201 frame_new_width(curfrp, curfrp->fr_width 1202 - (new_size + ((flags & WSP_TOP) != 0)), flags & WSP_TOP, 1203 FALSE); 1204 } 1205 else 1206 win_new_width(oldwin, oldwin->w_width - (new_size + 1)); 1207 if (before) /* new window left of current one */ 1208 { 1209 wp->w_wincol = oldwin->w_wincol; 1210 oldwin->w_wincol += new_size + 1; 1211 } 1212 else /* new window right of current one */ 1213 wp->w_wincol = oldwin->w_wincol + oldwin->w_width + 1; 1214 frame_fix_width(oldwin); 1215 frame_fix_width(wp); 1216 } 1217 else 1218 { 1219 /* width and column of new window is same as current window */ 1220 if (flags & (WSP_TOP | WSP_BOT)) 1221 { 1222 wp->w_wincol = 0; 1223 win_new_width(wp, Columns); 1224 wp->w_vsep_width = 0; 1225 } 1226 else 1227 { 1228 wp->w_wincol = oldwin->w_wincol; 1229 win_new_width(wp, oldwin->w_width); 1230 wp->w_vsep_width = oldwin->w_vsep_width; 1231 } 1232 frp->fr_width = curfrp->fr_width; 1233 1234 /* "new_size" of the current window goes to the new window, use 1235 * one row for the status line */ 1236 win_new_height(wp, new_size); 1237 if (flags & (WSP_TOP | WSP_BOT)) 1238 { 1239 int new_fr_height = curfrp->fr_height - new_size 1240 + WINBAR_HEIGHT(wp) ; 1241 1242 if (!((flags & WSP_BOT) && p_ls == 0)) 1243 new_fr_height -= STATUS_HEIGHT; 1244 frame_new_height(curfrp, new_fr_height, flags & WSP_TOP, FALSE); 1245 } 1246 else 1247 win_new_height(oldwin, oldwin_height - (new_size + STATUS_HEIGHT)); 1248 if (before) /* new window above current one */ 1249 { 1250 wp->w_winrow = oldwin->w_winrow; 1251 wp->w_status_height = STATUS_HEIGHT; 1252 oldwin->w_winrow += wp->w_height + STATUS_HEIGHT; 1253 } 1254 else /* new window below current one */ 1255 { 1256 wp->w_winrow = oldwin->w_winrow + VISIBLE_HEIGHT(oldwin) 1257 + STATUS_HEIGHT; 1258 wp->w_status_height = oldwin->w_status_height; 1259 if (!(flags & WSP_BOT)) 1260 oldwin->w_status_height = STATUS_HEIGHT; 1261 } 1262 if (flags & WSP_BOT) 1263 frame_add_statusline(curfrp); 1264 frame_fix_height(wp); 1265 frame_fix_height(oldwin); 1266 } 1267 1268 if (flags & (WSP_TOP | WSP_BOT)) 1269 (void)win_comp_pos(); 1270 1271 /* 1272 * Both windows need redrawing 1273 */ 1274 redraw_win_later(wp, NOT_VALID); 1275 wp->w_redr_status = TRUE; 1276 redraw_win_later(oldwin, NOT_VALID); 1277 oldwin->w_redr_status = TRUE; 1278 1279 if (need_status) 1280 { 1281 msg_row = Rows - 1; 1282 msg_col = sc_col; 1283 msg_clr_eos_force(); /* Old command/ruler may still be there */ 1284 comp_col(); 1285 msg_row = Rows - 1; 1286 msg_col = 0; /* put position back at start of line */ 1287 } 1288 1289 /* 1290 * equalize the window sizes. 1291 */ 1292 if (do_equal || dir != 0) 1293 win_equal(wp, TRUE, 1294 (flags & WSP_VERT) ? (dir == 'v' ? 'b' : 'h') 1295 : dir == 'h' ? 'b' : 'v'); 1296 1297 /* Don't change the window height/width to 'winheight' / 'winwidth' if a 1298 * size was given. */ 1299 if (flags & WSP_VERT) 1300 { 1301 i = p_wiw; 1302 if (size != 0) 1303 p_wiw = size; 1304 1305 # ifdef FEAT_GUI 1306 /* When 'guioptions' includes 'L' or 'R' may have to add scrollbars. */ 1307 if (gui.in_use) 1308 gui_init_which_components(NULL); 1309 # endif 1310 } 1311 else 1312 { 1313 i = p_wh; 1314 if (size != 0) 1315 p_wh = size; 1316 } 1317 1318 #ifdef FEAT_JUMPLIST 1319 /* Keep same changelist position in new window. */ 1320 wp->w_changelistidx = oldwin->w_changelistidx; 1321 #endif 1322 1323 /* 1324 * make the new window the current window 1325 */ 1326 win_enter_ext(wp, FALSE, FALSE, TRUE, TRUE, TRUE); 1327 if (flags & WSP_VERT) 1328 p_wiw = i; 1329 else 1330 p_wh = i; 1331 1332 return OK; 1333 } 1334 1335 1336 /* 1337 * Initialize window "newp" from window "oldp". 1338 * Used when splitting a window and when creating a new tab page. 1339 * The windows will both edit the same buffer. 1340 * WSP_NEWLOC may be specified in flags to prevent the location list from 1341 * being copied. 1342 */ 1343 static void 1344 win_init(win_T *newp, win_T *oldp, int flags UNUSED) 1345 { 1346 int i; 1347 1348 newp->w_buffer = oldp->w_buffer; 1349 #ifdef FEAT_SYN_HL 1350 newp->w_s = &(oldp->w_buffer->b_s); 1351 #endif 1352 oldp->w_buffer->b_nwindows++; 1353 newp->w_cursor = oldp->w_cursor; 1354 newp->w_valid = 0; 1355 newp->w_curswant = oldp->w_curswant; 1356 newp->w_set_curswant = oldp->w_set_curswant; 1357 newp->w_topline = oldp->w_topline; 1358 #ifdef FEAT_DIFF 1359 newp->w_topfill = oldp->w_topfill; 1360 #endif 1361 newp->w_leftcol = oldp->w_leftcol; 1362 newp->w_pcmark = oldp->w_pcmark; 1363 newp->w_prev_pcmark = oldp->w_prev_pcmark; 1364 newp->w_alt_fnum = oldp->w_alt_fnum; 1365 newp->w_wrow = oldp->w_wrow; 1366 newp->w_fraction = oldp->w_fraction; 1367 newp->w_prev_fraction_row = oldp->w_prev_fraction_row; 1368 #ifdef FEAT_JUMPLIST 1369 copy_jumplist(oldp, newp); 1370 #endif 1371 #ifdef FEAT_QUICKFIX 1372 if (flags & WSP_NEWLOC) 1373 { 1374 /* Don't copy the location list. */ 1375 newp->w_llist = NULL; 1376 newp->w_llist_ref = NULL; 1377 } 1378 else 1379 copy_loclist_stack(oldp, newp); 1380 #endif 1381 newp->w_localdir = (oldp->w_localdir == NULL) 1382 ? NULL : vim_strsave(oldp->w_localdir); 1383 1384 /* copy tagstack and folds */ 1385 for (i = 0; i < oldp->w_tagstacklen; i++) 1386 { 1387 taggy_T *tag = &newp->w_tagstack[i]; 1388 *tag = oldp->w_tagstack[i]; 1389 if (tag->tagname != NULL) 1390 tag->tagname = vim_strsave(tag->tagname); 1391 if (tag->user_data != NULL) 1392 tag->user_data = vim_strsave(tag->user_data); 1393 } 1394 newp->w_tagstackidx = oldp->w_tagstackidx; 1395 newp->w_tagstacklen = oldp->w_tagstacklen; 1396 #ifdef FEAT_FOLDING 1397 copyFoldingState(oldp, newp); 1398 #endif 1399 1400 win_init_some(newp, oldp); 1401 1402 #ifdef FEAT_SYN_HL 1403 check_colorcolumn(newp); 1404 #endif 1405 } 1406 1407 /* 1408 * Initialize window "newp" from window "old". 1409 * Only the essential things are copied. 1410 */ 1411 static void 1412 win_init_some(win_T *newp, win_T *oldp) 1413 { 1414 /* Use the same argument list. */ 1415 newp->w_alist = oldp->w_alist; 1416 ++newp->w_alist->al_refcount; 1417 newp->w_arg_idx = oldp->w_arg_idx; 1418 1419 /* copy options from existing window */ 1420 win_copy_options(oldp, newp); 1421 } 1422 1423 /* 1424 * Return TRUE if "win" is a global popup or a popup in the current tab page. 1425 */ 1426 int 1427 win_valid_popup(win_T *win UNUSED) 1428 { 1429 #ifdef FEAT_TEXT_PROP 1430 win_T *wp; 1431 1432 for (wp = first_popupwin; wp != NULL; wp = wp->w_next) 1433 if (wp == win) 1434 return TRUE; 1435 for (wp = curtab->tp_first_popupwin; wp != NULL; wp = wp->w_next) 1436 if (wp == win) 1437 return TRUE; 1438 #endif 1439 return FALSE; 1440 } 1441 1442 /* 1443 * Check if "win" is a pointer to an existing window in the current tab page. 1444 */ 1445 int 1446 win_valid(win_T *win) 1447 { 1448 win_T *wp; 1449 1450 if (win == NULL) 1451 return FALSE; 1452 FOR_ALL_WINDOWS(wp) 1453 if (wp == win) 1454 return TRUE; 1455 return win_valid_popup(win); 1456 } 1457 1458 /* 1459 * Check if "win" is a pointer to an existing window in any tab page. 1460 */ 1461 int 1462 win_valid_any_tab(win_T *win) 1463 { 1464 win_T *wp; 1465 tabpage_T *tp; 1466 1467 if (win == NULL) 1468 return FALSE; 1469 FOR_ALL_TABPAGES(tp) 1470 { 1471 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 1472 { 1473 if (wp == win) 1474 return TRUE; 1475 } 1476 #ifdef FEAT_TEXT_PROP 1477 for (wp = tp->tp_first_popupwin; wp != NULL; wp = wp->w_next) 1478 if (wp == win) 1479 return TRUE; 1480 #endif 1481 } 1482 return win_valid_popup(win); 1483 } 1484 1485 /* 1486 * Return the number of windows. 1487 */ 1488 int 1489 win_count(void) 1490 { 1491 win_T *wp; 1492 int count = 0; 1493 1494 FOR_ALL_WINDOWS(wp) 1495 ++count; 1496 return count; 1497 } 1498 1499 /* 1500 * Make "count" windows on the screen. 1501 * Return actual number of windows on the screen. 1502 * Must be called when there is just one window, filling the whole screen 1503 * (excluding the command line). 1504 */ 1505 int 1506 make_windows( 1507 int count, 1508 int vertical UNUSED) /* split windows vertically if TRUE */ 1509 { 1510 int maxcount; 1511 int todo; 1512 1513 if (vertical) 1514 { 1515 /* Each windows needs at least 'winminwidth' lines and a separator 1516 * column. */ 1517 maxcount = (curwin->w_width + curwin->w_vsep_width 1518 - (p_wiw - p_wmw)) / (p_wmw + 1); 1519 } 1520 else 1521 { 1522 /* Each window needs at least 'winminheight' lines and a status line. */ 1523 maxcount = (VISIBLE_HEIGHT(curwin) + curwin->w_status_height 1524 - (p_wh - p_wmh)) / (p_wmh + STATUS_HEIGHT); 1525 } 1526 1527 if (maxcount < 2) 1528 maxcount = 2; 1529 if (count > maxcount) 1530 count = maxcount; 1531 1532 /* 1533 * add status line now, otherwise first window will be too big 1534 */ 1535 if (count > 1) 1536 last_status(TRUE); 1537 1538 /* 1539 * Don't execute autocommands while creating the windows. Must do that 1540 * when putting the buffers in the windows. 1541 */ 1542 block_autocmds(); 1543 1544 /* todo is number of windows left to create */ 1545 for (todo = count - 1; todo > 0; --todo) 1546 if (vertical) 1547 { 1548 if (win_split(curwin->w_width - (curwin->w_width - todo) 1549 / (todo + 1) - 1, WSP_VERT | WSP_ABOVE) == FAIL) 1550 break; 1551 } 1552 else 1553 { 1554 if (win_split(curwin->w_height - (curwin->w_height - todo 1555 * STATUS_HEIGHT) / (todo + 1) 1556 - STATUS_HEIGHT, WSP_ABOVE) == FAIL) 1557 break; 1558 } 1559 1560 unblock_autocmds(); 1561 1562 /* return actual number of windows */ 1563 return (count - todo); 1564 } 1565 1566 /* 1567 * Exchange current and next window 1568 */ 1569 static void 1570 win_exchange(long Prenum) 1571 { 1572 frame_T *frp; 1573 frame_T *frp2; 1574 win_T *wp; 1575 win_T *wp2; 1576 int temp; 1577 1578 if (ERROR_IF_POPUP_WINDOW) 1579 return; 1580 if (ONE_WINDOW) // just one window 1581 { 1582 beep_flush(); 1583 return; 1584 } 1585 1586 #ifdef FEAT_GUI 1587 need_mouse_correct = TRUE; 1588 #endif 1589 1590 /* 1591 * find window to exchange with 1592 */ 1593 if (Prenum) 1594 { 1595 frp = curwin->w_frame->fr_parent->fr_child; 1596 while (frp != NULL && --Prenum > 0) 1597 frp = frp->fr_next; 1598 } 1599 else if (curwin->w_frame->fr_next != NULL) /* Swap with next */ 1600 frp = curwin->w_frame->fr_next; 1601 else /* Swap last window in row/col with previous */ 1602 frp = curwin->w_frame->fr_prev; 1603 1604 /* We can only exchange a window with another window, not with a frame 1605 * containing windows. */ 1606 if (frp == NULL || frp->fr_win == NULL || frp->fr_win == curwin) 1607 return; 1608 wp = frp->fr_win; 1609 1610 /* 1611 * 1. remove curwin from the list. Remember after which window it was in wp2 1612 * 2. insert curwin before wp in the list 1613 * if wp != wp2 1614 * 3. remove wp from the list 1615 * 4. insert wp after wp2 1616 * 5. exchange the status line height and vsep width. 1617 */ 1618 wp2 = curwin->w_prev; 1619 frp2 = curwin->w_frame->fr_prev; 1620 if (wp->w_prev != curwin) 1621 { 1622 win_remove(curwin, NULL); 1623 frame_remove(curwin->w_frame); 1624 win_append(wp->w_prev, curwin); 1625 frame_insert(frp, curwin->w_frame); 1626 } 1627 if (wp != wp2) 1628 { 1629 win_remove(wp, NULL); 1630 frame_remove(wp->w_frame); 1631 win_append(wp2, wp); 1632 if (frp2 == NULL) 1633 frame_insert(wp->w_frame->fr_parent->fr_child, wp->w_frame); 1634 else 1635 frame_append(frp2, wp->w_frame); 1636 } 1637 temp = curwin->w_status_height; 1638 curwin->w_status_height = wp->w_status_height; 1639 wp->w_status_height = temp; 1640 temp = curwin->w_vsep_width; 1641 curwin->w_vsep_width = wp->w_vsep_width; 1642 wp->w_vsep_width = temp; 1643 1644 /* If the windows are not in the same frame, exchange the sizes to avoid 1645 * messing up the window layout. Otherwise fix the frame sizes. */ 1646 if (curwin->w_frame->fr_parent != wp->w_frame->fr_parent) 1647 { 1648 temp = curwin->w_height; 1649 curwin->w_height = wp->w_height; 1650 wp->w_height = temp; 1651 temp = curwin->w_width; 1652 curwin->w_width = wp->w_width; 1653 wp->w_width = temp; 1654 } 1655 else 1656 { 1657 frame_fix_height(curwin); 1658 frame_fix_height(wp); 1659 frame_fix_width(curwin); 1660 frame_fix_width(wp); 1661 } 1662 1663 (void)win_comp_pos(); /* recompute window positions */ 1664 1665 win_enter(wp, TRUE); 1666 redraw_all_later(NOT_VALID); 1667 } 1668 1669 /* 1670 * rotate windows: if upwards TRUE the second window becomes the first one 1671 * if upwards FALSE the first window becomes the second one 1672 */ 1673 static void 1674 win_rotate(int upwards, int count) 1675 { 1676 win_T *wp1; 1677 win_T *wp2; 1678 frame_T *frp; 1679 int n; 1680 1681 if (ONE_WINDOW) /* nothing to do */ 1682 { 1683 beep_flush(); 1684 return; 1685 } 1686 1687 #ifdef FEAT_GUI 1688 need_mouse_correct = TRUE; 1689 #endif 1690 1691 /* Check if all frames in this row/col have one window. */ 1692 FOR_ALL_FRAMES(frp, curwin->w_frame->fr_parent->fr_child) 1693 if (frp->fr_win == NULL) 1694 { 1695 emsg(_("E443: Cannot rotate when another window is split")); 1696 return; 1697 } 1698 1699 while (count--) 1700 { 1701 if (upwards) /* first window becomes last window */ 1702 { 1703 /* remove first window/frame from the list */ 1704 frp = curwin->w_frame->fr_parent->fr_child; 1705 wp1 = frp->fr_win; 1706 win_remove(wp1, NULL); 1707 frame_remove(frp); 1708 1709 /* find last frame and append removed window/frame after it */ 1710 for ( ; frp->fr_next != NULL; frp = frp->fr_next) 1711 ; 1712 win_append(frp->fr_win, wp1); 1713 frame_append(frp, wp1->w_frame); 1714 1715 wp2 = frp->fr_win; /* previously last window */ 1716 } 1717 else /* last window becomes first window */ 1718 { 1719 /* find last window/frame in the list and remove it */ 1720 for (frp = curwin->w_frame; frp->fr_next != NULL; 1721 frp = frp->fr_next) 1722 ; 1723 wp1 = frp->fr_win; 1724 wp2 = wp1->w_prev; /* will become last window */ 1725 win_remove(wp1, NULL); 1726 frame_remove(frp); 1727 1728 /* append the removed window/frame before the first in the list */ 1729 win_append(frp->fr_parent->fr_child->fr_win->w_prev, wp1); 1730 frame_insert(frp->fr_parent->fr_child, frp); 1731 } 1732 1733 /* exchange status height and vsep width of old and new last window */ 1734 n = wp2->w_status_height; 1735 wp2->w_status_height = wp1->w_status_height; 1736 wp1->w_status_height = n; 1737 frame_fix_height(wp1); 1738 frame_fix_height(wp2); 1739 n = wp2->w_vsep_width; 1740 wp2->w_vsep_width = wp1->w_vsep_width; 1741 wp1->w_vsep_width = n; 1742 frame_fix_width(wp1); 1743 frame_fix_width(wp2); 1744 1745 /* recompute w_winrow and w_wincol for all windows */ 1746 (void)win_comp_pos(); 1747 } 1748 1749 redraw_all_later(NOT_VALID); 1750 } 1751 1752 /* 1753 * Move the current window to the very top/bottom/left/right of the screen. 1754 */ 1755 static void 1756 win_totop(int size, int flags) 1757 { 1758 int dir; 1759 int height = curwin->w_height; 1760 1761 if (ONE_WINDOW) 1762 { 1763 beep_flush(); 1764 return; 1765 } 1766 if (check_split_disallowed() == FAIL) 1767 return; 1768 1769 /* Remove the window and frame from the tree of frames. */ 1770 (void)winframe_remove(curwin, &dir, NULL); 1771 win_remove(curwin, NULL); 1772 last_status(FALSE); /* may need to remove last status line */ 1773 (void)win_comp_pos(); /* recompute window positions */ 1774 1775 /* Split a window on the desired side and put the window there. */ 1776 (void)win_split_ins(size, flags, curwin, dir); 1777 if (!(flags & WSP_VERT)) 1778 { 1779 win_setheight(height); 1780 if (p_ea) 1781 win_equal(curwin, TRUE, 'v'); 1782 } 1783 1784 #if defined(FEAT_GUI) 1785 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 1786 * scrollbars. Have to update them anyway. */ 1787 gui_may_update_scrollbars(); 1788 #endif 1789 } 1790 1791 /* 1792 * Move window "win1" to below/right of "win2" and make "win1" the current 1793 * window. Only works within the same frame! 1794 */ 1795 void 1796 win_move_after(win_T *win1, win_T *win2) 1797 { 1798 int height; 1799 1800 /* check if the arguments are reasonable */ 1801 if (win1 == win2) 1802 return; 1803 1804 /* check if there is something to do */ 1805 if (win2->w_next != win1) 1806 { 1807 if (win1->w_frame->fr_parent != win2->w_frame->fr_parent) 1808 { 1809 iemsg("INTERNAL: trying to move a window into another frame"); 1810 return; 1811 } 1812 1813 /* may need move the status line/vertical separator of the last window 1814 * */ 1815 if (win1 == lastwin) 1816 { 1817 height = win1->w_prev->w_status_height; 1818 win1->w_prev->w_status_height = win1->w_status_height; 1819 win1->w_status_height = height; 1820 if (win1->w_prev->w_vsep_width == 1) 1821 { 1822 /* Remove the vertical separator from the last-but-one window, 1823 * add it to the last window. Adjust the frame widths. */ 1824 win1->w_prev->w_vsep_width = 0; 1825 win1->w_prev->w_frame->fr_width -= 1; 1826 win1->w_vsep_width = 1; 1827 win1->w_frame->fr_width += 1; 1828 } 1829 } 1830 else if (win2 == lastwin) 1831 { 1832 height = win1->w_status_height; 1833 win1->w_status_height = win2->w_status_height; 1834 win2->w_status_height = height; 1835 if (win1->w_vsep_width == 1) 1836 { 1837 /* Remove the vertical separator from win1, add it to the last 1838 * window, win2. Adjust the frame widths. */ 1839 win2->w_vsep_width = 1; 1840 win2->w_frame->fr_width += 1; 1841 win1->w_vsep_width = 0; 1842 win1->w_frame->fr_width -= 1; 1843 } 1844 } 1845 win_remove(win1, NULL); 1846 frame_remove(win1->w_frame); 1847 win_append(win2, win1); 1848 frame_append(win2->w_frame, win1->w_frame); 1849 1850 (void)win_comp_pos(); /* recompute w_winrow for all windows */ 1851 redraw_later(NOT_VALID); 1852 } 1853 win_enter(win1, FALSE); 1854 } 1855 1856 /* 1857 * Make all windows the same height. 1858 * 'next_curwin' will soon be the current window, make sure it has enough 1859 * rows. 1860 */ 1861 void 1862 win_equal( 1863 win_T *next_curwin, /* pointer to current window to be or NULL */ 1864 int current, /* do only frame with current window */ 1865 int dir) /* 'v' for vertically, 'h' for horizontally, 1866 'b' for both, 0 for using p_ead */ 1867 { 1868 if (dir == 0) 1869 dir = *p_ead; 1870 win_equal_rec(next_curwin == NULL ? curwin : next_curwin, current, 1871 topframe, dir, 0, tabline_height(), 1872 (int)Columns, topframe->fr_height); 1873 } 1874 1875 /* 1876 * Set a frame to a new position and height, spreading the available room 1877 * equally over contained frames. 1878 * The window "next_curwin" (if not NULL) should at least get the size from 1879 * 'winheight' and 'winwidth' if possible. 1880 */ 1881 static void 1882 win_equal_rec( 1883 win_T *next_curwin, /* pointer to current window to be or NULL */ 1884 int current, /* do only frame with current window */ 1885 frame_T *topfr, /* frame to set size off */ 1886 int dir, /* 'v', 'h' or 'b', see win_equal() */ 1887 int col, /* horizontal position for frame */ 1888 int row, /* vertical position for frame */ 1889 int width, /* new width of frame */ 1890 int height) /* new height of frame */ 1891 { 1892 int n, m; 1893 int extra_sep = 0; 1894 int wincount, totwincount = 0; 1895 frame_T *fr; 1896 int next_curwin_size = 0; 1897 int room = 0; 1898 int new_size; 1899 int has_next_curwin = 0; 1900 int hnc; 1901 1902 if (topfr->fr_layout == FR_LEAF) 1903 { 1904 /* Set the width/height of this frame. 1905 * Redraw when size or position changes */ 1906 if (topfr->fr_height != height || topfr->fr_win->w_winrow != row 1907 || topfr->fr_width != width || topfr->fr_win->w_wincol != col 1908 ) 1909 { 1910 topfr->fr_win->w_winrow = row; 1911 frame_new_height(topfr, height, FALSE, FALSE); 1912 topfr->fr_win->w_wincol = col; 1913 frame_new_width(topfr, width, FALSE, FALSE); 1914 redraw_all_later(NOT_VALID); 1915 } 1916 } 1917 else if (topfr->fr_layout == FR_ROW) 1918 { 1919 topfr->fr_width = width; 1920 topfr->fr_height = height; 1921 1922 if (dir != 'v') /* equalize frame widths */ 1923 { 1924 /* Compute the maximum number of windows horizontally in this 1925 * frame. */ 1926 n = frame_minwidth(topfr, NOWIN); 1927 /* add one for the rightmost window, it doesn't have a separator */ 1928 if (col + width == Columns) 1929 extra_sep = 1; 1930 else 1931 extra_sep = 0; 1932 totwincount = (n + extra_sep) / (p_wmw + 1); 1933 has_next_curwin = frame_has_win(topfr, next_curwin); 1934 1935 /* 1936 * Compute width for "next_curwin" window and room available for 1937 * other windows. 1938 * "m" is the minimal width when counting p_wiw for "next_curwin". 1939 */ 1940 m = frame_minwidth(topfr, next_curwin); 1941 room = width - m; 1942 if (room < 0) 1943 { 1944 next_curwin_size = p_wiw + room; 1945 room = 0; 1946 } 1947 else 1948 { 1949 next_curwin_size = -1; 1950 FOR_ALL_FRAMES(fr, topfr->fr_child) 1951 { 1952 /* If 'winfixwidth' set keep the window width if 1953 * possible. 1954 * Watch out for this window being the next_curwin. */ 1955 if (frame_fixed_width(fr)) 1956 { 1957 n = frame_minwidth(fr, NOWIN); 1958 new_size = fr->fr_width; 1959 if (frame_has_win(fr, next_curwin)) 1960 { 1961 room += p_wiw - p_wmw; 1962 next_curwin_size = 0; 1963 if (new_size < p_wiw) 1964 new_size = p_wiw; 1965 } 1966 else 1967 /* These windows don't use up room. */ 1968 totwincount -= (n + (fr->fr_next == NULL 1969 ? extra_sep : 0)) / (p_wmw + 1); 1970 room -= new_size - n; 1971 if (room < 0) 1972 { 1973 new_size += room; 1974 room = 0; 1975 } 1976 fr->fr_newwidth = new_size; 1977 } 1978 } 1979 if (next_curwin_size == -1) 1980 { 1981 if (!has_next_curwin) 1982 next_curwin_size = 0; 1983 else if (totwincount > 1 1984 && (room + (totwincount - 2)) 1985 / (totwincount - 1) > p_wiw) 1986 { 1987 /* Can make all windows wider than 'winwidth', spread 1988 * the room equally. */ 1989 next_curwin_size = (room + p_wiw 1990 + (totwincount - 1) * p_wmw 1991 + (totwincount - 1)) / totwincount; 1992 room -= next_curwin_size - p_wiw; 1993 } 1994 else 1995 next_curwin_size = p_wiw; 1996 } 1997 } 1998 1999 if (has_next_curwin) 2000 --totwincount; /* don't count curwin */ 2001 } 2002 2003 FOR_ALL_FRAMES(fr, topfr->fr_child) 2004 { 2005 wincount = 1; 2006 if (fr->fr_next == NULL) 2007 /* last frame gets all that remains (avoid roundoff error) */ 2008 new_size = width; 2009 else if (dir == 'v') 2010 new_size = fr->fr_width; 2011 else if (frame_fixed_width(fr)) 2012 { 2013 new_size = fr->fr_newwidth; 2014 wincount = 0; /* doesn't count as a sizeable window */ 2015 } 2016 else 2017 { 2018 /* Compute the maximum number of windows horiz. in "fr". */ 2019 n = frame_minwidth(fr, NOWIN); 2020 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 2021 / (p_wmw + 1); 2022 m = frame_minwidth(fr, next_curwin); 2023 if (has_next_curwin) 2024 hnc = frame_has_win(fr, next_curwin); 2025 else 2026 hnc = FALSE; 2027 if (hnc) /* don't count next_curwin */ 2028 --wincount; 2029 if (totwincount == 0) 2030 new_size = room; 2031 else 2032 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 2033 / totwincount; 2034 if (hnc) /* add next_curwin size */ 2035 { 2036 next_curwin_size -= p_wiw - (m - n); 2037 new_size += next_curwin_size; 2038 room -= new_size - next_curwin_size; 2039 } 2040 else 2041 room -= new_size; 2042 new_size += n; 2043 } 2044 2045 /* Skip frame that is full width when splitting or closing a 2046 * window, unless equalizing all frames. */ 2047 if (!current || dir != 'v' || topfr->fr_parent != NULL 2048 || (new_size != fr->fr_width) 2049 || frame_has_win(fr, next_curwin)) 2050 win_equal_rec(next_curwin, current, fr, dir, col, row, 2051 new_size, height); 2052 col += new_size; 2053 width -= new_size; 2054 totwincount -= wincount; 2055 } 2056 } 2057 else /* topfr->fr_layout == FR_COL */ 2058 { 2059 topfr->fr_width = width; 2060 topfr->fr_height = height; 2061 2062 if (dir != 'h') /* equalize frame heights */ 2063 { 2064 /* Compute maximum number of windows vertically in this frame. */ 2065 n = frame_minheight(topfr, NOWIN); 2066 /* add one for the bottom window if it doesn't have a statusline */ 2067 if (row + height == cmdline_row && p_ls == 0) 2068 extra_sep = 1; 2069 else 2070 extra_sep = 0; 2071 totwincount = (n + extra_sep) / (p_wmh + 1); 2072 has_next_curwin = frame_has_win(topfr, next_curwin); 2073 2074 /* 2075 * Compute height for "next_curwin" window and room available for 2076 * other windows. 2077 * "m" is the minimal height when counting p_wh for "next_curwin". 2078 */ 2079 m = frame_minheight(topfr, next_curwin); 2080 room = height - m; 2081 if (room < 0) 2082 { 2083 /* The room is less then 'winheight', use all space for the 2084 * current window. */ 2085 next_curwin_size = p_wh + room; 2086 room = 0; 2087 } 2088 else 2089 { 2090 next_curwin_size = -1; 2091 FOR_ALL_FRAMES(fr, topfr->fr_child) 2092 { 2093 /* If 'winfixheight' set keep the window height if 2094 * possible. 2095 * Watch out for this window being the next_curwin. */ 2096 if (frame_fixed_height(fr)) 2097 { 2098 n = frame_minheight(fr, NOWIN); 2099 new_size = fr->fr_height; 2100 if (frame_has_win(fr, next_curwin)) 2101 { 2102 room += p_wh - p_wmh; 2103 next_curwin_size = 0; 2104 if (new_size < p_wh) 2105 new_size = p_wh; 2106 } 2107 else 2108 /* These windows don't use up room. */ 2109 totwincount -= (n + (fr->fr_next == NULL 2110 ? extra_sep : 0)) / (p_wmh + 1); 2111 room -= new_size - n; 2112 if (room < 0) 2113 { 2114 new_size += room; 2115 room = 0; 2116 } 2117 fr->fr_newheight = new_size; 2118 } 2119 } 2120 if (next_curwin_size == -1) 2121 { 2122 if (!has_next_curwin) 2123 next_curwin_size = 0; 2124 else if (totwincount > 1 2125 && (room + (totwincount - 2)) 2126 / (totwincount - 1) > p_wh) 2127 { 2128 /* can make all windows higher than 'winheight', 2129 * spread the room equally. */ 2130 next_curwin_size = (room + p_wh 2131 + (totwincount - 1) * p_wmh 2132 + (totwincount - 1)) / totwincount; 2133 room -= next_curwin_size - p_wh; 2134 } 2135 else 2136 next_curwin_size = p_wh; 2137 } 2138 } 2139 2140 if (has_next_curwin) 2141 --totwincount; /* don't count curwin */ 2142 } 2143 2144 FOR_ALL_FRAMES(fr, topfr->fr_child) 2145 { 2146 wincount = 1; 2147 if (fr->fr_next == NULL) 2148 /* last frame gets all that remains (avoid roundoff error) */ 2149 new_size = height; 2150 else if (dir == 'h') 2151 new_size = fr->fr_height; 2152 else if (frame_fixed_height(fr)) 2153 { 2154 new_size = fr->fr_newheight; 2155 wincount = 0; /* doesn't count as a sizeable window */ 2156 } 2157 else 2158 { 2159 /* Compute the maximum number of windows vert. in "fr". */ 2160 n = frame_minheight(fr, NOWIN); 2161 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 2162 / (p_wmh + 1); 2163 m = frame_minheight(fr, next_curwin); 2164 if (has_next_curwin) 2165 hnc = frame_has_win(fr, next_curwin); 2166 else 2167 hnc = FALSE; 2168 if (hnc) /* don't count next_curwin */ 2169 --wincount; 2170 if (totwincount == 0) 2171 new_size = room; 2172 else 2173 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 2174 / totwincount; 2175 if (hnc) /* add next_curwin size */ 2176 { 2177 next_curwin_size -= p_wh - (m - n); 2178 new_size += next_curwin_size; 2179 room -= new_size - next_curwin_size; 2180 } 2181 else 2182 room -= new_size; 2183 new_size += n; 2184 } 2185 /* Skip frame that is full width when splitting or closing a 2186 * window, unless equalizing all frames. */ 2187 if (!current || dir != 'h' || topfr->fr_parent != NULL 2188 || (new_size != fr->fr_height) 2189 || frame_has_win(fr, next_curwin)) 2190 win_equal_rec(next_curwin, current, fr, dir, col, row, 2191 width, new_size); 2192 row += new_size; 2193 height -= new_size; 2194 totwincount -= wincount; 2195 } 2196 } 2197 } 2198 2199 #ifdef FEAT_JOB_CHANNEL 2200 static void 2201 leaving_window(win_T *win) 2202 { 2203 // Only matters for a prompt window. 2204 if (!bt_prompt(win->w_buffer)) 2205 return; 2206 2207 // When leaving a prompt window stop Insert mode and perhaps restart 2208 // it when entering that window again. 2209 win->w_buffer->b_prompt_insert = restart_edit; 2210 if (restart_edit != 0 && mode_displayed) 2211 clear_cmdline = TRUE; /* unshow mode later */ 2212 restart_edit = NUL; 2213 2214 // When leaving the window (or closing the window) was done from a 2215 // callback we need to break out of the Insert mode loop and restart Insert 2216 // mode when entering the window again. 2217 if (State & INSERT) 2218 { 2219 stop_insert_mode = TRUE; 2220 if (win->w_buffer->b_prompt_insert == NUL) 2221 win->w_buffer->b_prompt_insert = 'A'; 2222 } 2223 } 2224 2225 static void 2226 entering_window(win_T *win) 2227 { 2228 // Only matters for a prompt window. 2229 if (!bt_prompt(win->w_buffer)) 2230 return; 2231 2232 // When switching to a prompt buffer that was in Insert mode, don't stop 2233 // Insert mode, it may have been set in leaving_window(). 2234 if (win->w_buffer->b_prompt_insert != NUL) 2235 stop_insert_mode = FALSE; 2236 2237 // When entering the prompt window restart Insert mode if we were in Insert 2238 // mode when we left it. 2239 restart_edit = win->w_buffer->b_prompt_insert; 2240 } 2241 #endif 2242 2243 /* 2244 * Close all windows for buffer "buf". 2245 */ 2246 void 2247 close_windows( 2248 buf_T *buf, 2249 int keep_curwin) /* don't close "curwin" */ 2250 { 2251 win_T *wp; 2252 tabpage_T *tp, *nexttp; 2253 int h = tabline_height(); 2254 int count = tabpage_index(NULL); 2255 2256 ++RedrawingDisabled; 2257 2258 for (wp = firstwin; wp != NULL && !ONE_WINDOW; ) 2259 { 2260 if (wp->w_buffer == buf && (!keep_curwin || wp != curwin) 2261 && !(wp->w_closing || wp->w_buffer->b_locked > 0)) 2262 { 2263 if (win_close(wp, FALSE) == FAIL) 2264 /* If closing the window fails give up, to avoid looping 2265 * forever. */ 2266 break; 2267 2268 /* Start all over, autocommands may change the window layout. */ 2269 wp = firstwin; 2270 } 2271 else 2272 wp = wp->w_next; 2273 } 2274 2275 /* Also check windows in other tab pages. */ 2276 for (tp = first_tabpage; tp != NULL; tp = nexttp) 2277 { 2278 nexttp = tp->tp_next; 2279 if (tp != curtab) 2280 for (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next) 2281 if (wp->w_buffer == buf 2282 && !(wp->w_closing || wp->w_buffer->b_locked > 0)) 2283 { 2284 win_close_othertab(wp, FALSE, tp); 2285 2286 /* Start all over, the tab page may be closed and 2287 * autocommands may change the window layout. */ 2288 nexttp = first_tabpage; 2289 break; 2290 } 2291 } 2292 2293 --RedrawingDisabled; 2294 2295 if (count != tabpage_index(NULL)) 2296 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2297 2298 redraw_tabline = TRUE; 2299 if (h != tabline_height()) 2300 shell_new_rows(); 2301 } 2302 2303 /* 2304 * Return TRUE if the current window is the only window that exists (ignoring 2305 * "aucmd_win"). 2306 * Returns FALSE if there is a window, possibly in another tab page. 2307 */ 2308 static int 2309 last_window(void) 2310 { 2311 return (one_window() && first_tabpage->tp_next == NULL); 2312 } 2313 2314 /* 2315 * Return TRUE if there is only one window other than "aucmd_win" in the 2316 * current tab page. 2317 */ 2318 int 2319 one_window(void) 2320 { 2321 win_T *wp; 2322 int seen_one = FALSE; 2323 2324 FOR_ALL_WINDOWS(wp) 2325 { 2326 if (wp != aucmd_win) 2327 { 2328 if (seen_one) 2329 return FALSE; 2330 seen_one = TRUE; 2331 } 2332 } 2333 return TRUE; 2334 } 2335 2336 /* 2337 * Close the possibly last window in a tab page. 2338 * Returns TRUE when the window was closed already. 2339 */ 2340 static int 2341 close_last_window_tabpage( 2342 win_T *win, 2343 int free_buf, 2344 tabpage_T *prev_curtab) 2345 { 2346 if (ONE_WINDOW) 2347 { 2348 buf_T *old_curbuf = curbuf; 2349 2350 /* 2351 * Closing the last window in a tab page. First go to another tab 2352 * page and then close the window and the tab page. This avoids that 2353 * curwin and curtab are invalid while we are freeing memory, they may 2354 * be used in GUI events. 2355 * Don't trigger autocommands yet, they may use wrong values, so do 2356 * that below. 2357 */ 2358 goto_tabpage_tp(alt_tabpage(), FALSE, TRUE); 2359 redraw_tabline = TRUE; 2360 2361 /* Safety check: Autocommands may have closed the window when jumping 2362 * to the other tab page. */ 2363 if (valid_tabpage(prev_curtab) && prev_curtab->tp_firstwin == win) 2364 { 2365 int h = tabline_height(); 2366 2367 win_close_othertab(win, free_buf, prev_curtab); 2368 if (h != tabline_height()) 2369 shell_new_rows(); 2370 } 2371 #ifdef FEAT_JOB_CHANNEL 2372 entering_window(curwin); 2373 #endif 2374 /* Since goto_tabpage_tp above did not trigger *Enter autocommands, do 2375 * that now. */ 2376 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2377 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 2378 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 2379 if (old_curbuf != curbuf) 2380 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2381 return TRUE; 2382 } 2383 return FALSE; 2384 } 2385 2386 /* 2387 * Close the buffer of "win" and unload it if "action" is DOBUF_UNLOAD. 2388 * "action" can also be zero (do nothing) or DOBUF_WIPE. 2389 * "abort_if_last" is passed to close_buffer(): abort closing if all other 2390 * windows are closed. 2391 */ 2392 static void 2393 win_close_buffer(win_T *win, int action, int abort_if_last) 2394 { 2395 #ifdef FEAT_SYN_HL 2396 // Free independent synblock before the buffer is freed. 2397 if (win->w_buffer != NULL) 2398 reset_synblock(win); 2399 #endif 2400 2401 #ifdef FEAT_QUICKFIX 2402 // When the quickfix/location list window is closed, unlist the buffer. 2403 if (win->w_buffer != NULL && bt_quickfix(win->w_buffer)) 2404 win->w_buffer->b_p_bl = FALSE; 2405 #endif 2406 2407 // Close the link to the buffer. 2408 if (win->w_buffer != NULL) 2409 { 2410 bufref_T bufref; 2411 2412 set_bufref(&bufref, curbuf); 2413 win->w_closing = TRUE; 2414 close_buffer(win, win->w_buffer, action, abort_if_last); 2415 if (win_valid_any_tab(win)) 2416 win->w_closing = FALSE; 2417 // Make sure curbuf is valid. It can become invalid if 'bufhidden' is 2418 // "wipe". 2419 if (!bufref_valid(&bufref)) 2420 curbuf = firstbuf; 2421 } 2422 } 2423 2424 /* 2425 * Close window "win". Only works for the current tab page. 2426 * If "free_buf" is TRUE related buffer may be unloaded. 2427 * 2428 * Called by :quit, :close, :xit, :wq and findtag(). 2429 * Returns FAIL when the window was not closed. 2430 */ 2431 int 2432 win_close(win_T *win, int free_buf) 2433 { 2434 win_T *wp; 2435 int other_buffer = FALSE; 2436 int close_curwin = FALSE; 2437 int dir; 2438 int help_window = FALSE; 2439 tabpage_T *prev_curtab = curtab; 2440 frame_T *win_frame = win->w_frame->fr_parent; 2441 2442 if (ERROR_IF_POPUP_WINDOW) 2443 return FAIL; 2444 2445 if (last_window()) 2446 { 2447 emsg(_("E444: Cannot close last window")); 2448 return FAIL; 2449 } 2450 2451 if (win->w_closing || (win->w_buffer != NULL 2452 && win->w_buffer->b_locked > 0)) 2453 return FAIL; /* window is already being closed */ 2454 if (win_unlisted(win)) 2455 { 2456 emsg(_("E813: Cannot close autocmd or popup window")); 2457 return FAIL; 2458 } 2459 if ((firstwin == aucmd_win || lastwin == aucmd_win) && one_window()) 2460 { 2461 emsg(_("E814: Cannot close window, only autocmd window would remain")); 2462 return FAIL; 2463 } 2464 2465 /* When closing the last window in a tab page first go to another tab page 2466 * and then close the window and the tab page to avoid that curwin and 2467 * curtab are invalid while we are freeing memory. */ 2468 if (close_last_window_tabpage(win, free_buf, prev_curtab)) 2469 return FAIL; 2470 2471 /* When closing the help window, try restoring a snapshot after closing 2472 * the window. Otherwise clear the snapshot, it's now invalid. */ 2473 if (bt_help(win->w_buffer)) 2474 help_window = TRUE; 2475 else 2476 clear_snapshot(curtab, SNAP_HELP_IDX); 2477 2478 if (win == curwin) 2479 { 2480 #ifdef FEAT_JOB_CHANNEL 2481 leaving_window(curwin); 2482 #endif 2483 /* 2484 * Guess which window is going to be the new current window. 2485 * This may change because of the autocommands (sigh). 2486 */ 2487 wp = frame2win(win_altframe(win, NULL)); 2488 2489 /* 2490 * Be careful: If autocommands delete the window or cause this window 2491 * to be the last one left, return now. 2492 */ 2493 if (wp->w_buffer != curbuf) 2494 { 2495 other_buffer = TRUE; 2496 win->w_closing = TRUE; 2497 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 2498 if (!win_valid(win)) 2499 return FAIL; 2500 win->w_closing = FALSE; 2501 if (last_window()) 2502 return FAIL; 2503 } 2504 win->w_closing = TRUE; 2505 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 2506 if (!win_valid(win)) 2507 return FAIL; 2508 win->w_closing = FALSE; 2509 if (last_window()) 2510 return FAIL; 2511 #ifdef FEAT_EVAL 2512 /* autocmds may abort script processing */ 2513 if (aborting()) 2514 return FAIL; 2515 #endif 2516 } 2517 2518 #ifdef FEAT_GUI 2519 // Avoid trouble with scrollbars that are going to be deleted in 2520 // win_free(). 2521 if (gui.in_use) 2522 out_flush(); 2523 #endif 2524 2525 #ifdef FEAT_TEXT_PROP 2526 if (popup_win_closed(win) && !win_valid(win)) 2527 return FAIL; 2528 #endif 2529 win_close_buffer(win, free_buf ? DOBUF_UNLOAD : 0, TRUE); 2530 2531 if (only_one_window() && win_valid(win) && win->w_buffer == NULL 2532 && (last_window() || curtab != prev_curtab 2533 || close_last_window_tabpage(win, free_buf, prev_curtab))) 2534 { 2535 /* Autocommands have closed all windows, quit now. Restore 2536 * curwin->w_buffer, otherwise writing viminfo may fail. */ 2537 if (curwin->w_buffer == NULL) 2538 curwin->w_buffer = curbuf; 2539 getout(0); 2540 } 2541 2542 /* Autocommands may have moved to another tab page. */ 2543 if (curtab != prev_curtab && win_valid_any_tab(win) 2544 && win->w_buffer == NULL) 2545 { 2546 /* Need to close the window anyway, since the buffer is NULL. */ 2547 win_close_othertab(win, FALSE, prev_curtab); 2548 return FAIL; 2549 } 2550 2551 /* Autocommands may have closed the window already or closed the only 2552 * other window. */ 2553 if (!win_valid(win) || last_window() 2554 || close_last_window_tabpage(win, free_buf, prev_curtab)) 2555 return FAIL; 2556 2557 // Now we are really going to close the window. Disallow any autocommand 2558 // to split a window to avoid trouble. 2559 ++split_disallowed; 2560 2561 /* Free the memory used for the window and get the window that received 2562 * the screen space. */ 2563 wp = win_free_mem(win, &dir, NULL); 2564 2565 /* Make sure curwin isn't invalid. It can cause severe trouble when 2566 * printing an error message. For win_equal() curbuf needs to be valid 2567 * too. */ 2568 if (win == curwin) 2569 { 2570 curwin = wp; 2571 #ifdef FEAT_QUICKFIX 2572 if (wp->w_p_pvw || bt_quickfix(wp->w_buffer)) 2573 { 2574 /* 2575 * If the cursor goes to the preview or the quickfix window, try 2576 * finding another window to go to. 2577 */ 2578 for (;;) 2579 { 2580 if (wp->w_next == NULL) 2581 wp = firstwin; 2582 else 2583 wp = wp->w_next; 2584 if (wp == curwin) 2585 break; 2586 if (!wp->w_p_pvw && !bt_quickfix(wp->w_buffer)) 2587 { 2588 curwin = wp; 2589 break; 2590 } 2591 } 2592 } 2593 #endif 2594 curbuf = curwin->w_buffer; 2595 close_curwin = TRUE; 2596 2597 /* The cursor position may be invalid if the buffer changed after last 2598 * using the window. */ 2599 check_cursor(); 2600 } 2601 if (p_ea && (*p_ead == 'b' || *p_ead == dir)) 2602 /* If the frame of the closed window contains the new current window, 2603 * only resize that frame. Otherwise resize all windows. */ 2604 win_equal(curwin, curwin->w_frame->fr_parent == win_frame, dir); 2605 else 2606 win_comp_pos(); 2607 if (close_curwin) 2608 { 2609 win_enter_ext(wp, FALSE, TRUE, FALSE, TRUE, TRUE); 2610 if (other_buffer) 2611 /* careful: after this wp and win may be invalid! */ 2612 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2613 } 2614 2615 --split_disallowed; 2616 2617 /* 2618 * If last window has a status line now and we don't want one, 2619 * remove the status line. 2620 */ 2621 last_status(FALSE); 2622 2623 /* After closing the help window, try restoring the window layout from 2624 * before it was opened. */ 2625 if (help_window) 2626 restore_snapshot(SNAP_HELP_IDX, close_curwin); 2627 2628 #if defined(FEAT_GUI) 2629 /* When 'guioptions' includes 'L' or 'R' may have to remove scrollbars. */ 2630 if (gui.in_use && !win_hasvertsplit()) 2631 gui_init_which_components(NULL); 2632 #endif 2633 2634 redraw_all_later(NOT_VALID); 2635 return OK; 2636 } 2637 2638 /* 2639 * Close window "win" in tab page "tp", which is not the current tab page. 2640 * This may be the last window in that tab page and result in closing the tab, 2641 * thus "tp" may become invalid! 2642 * Caller must check if buffer is hidden and whether the tabline needs to be 2643 * updated. 2644 */ 2645 void 2646 win_close_othertab(win_T *win, int free_buf, tabpage_T *tp) 2647 { 2648 win_T *wp; 2649 int dir; 2650 tabpage_T *ptp = NULL; 2651 int free_tp = FALSE; 2652 2653 /* Get here with win->w_buffer == NULL when win_close() detects the tab 2654 * page changed. */ 2655 if (win->w_closing || (win->w_buffer != NULL 2656 && win->w_buffer->b_locked > 0)) 2657 return; /* window is already being closed */ 2658 2659 if (win->w_buffer != NULL) 2660 /* Close the link to the buffer. */ 2661 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, FALSE); 2662 2663 /* Careful: Autocommands may have closed the tab page or made it the 2664 * current tab page. */ 2665 for (ptp = first_tabpage; ptp != NULL && ptp != tp; ptp = ptp->tp_next) 2666 ; 2667 if (ptp == NULL || tp == curtab) 2668 return; 2669 2670 /* Autocommands may have closed the window already. */ 2671 for (wp = tp->tp_firstwin; wp != NULL && wp != win; wp = wp->w_next) 2672 ; 2673 if (wp == NULL) 2674 return; 2675 2676 /* When closing the last window in a tab page remove the tab page. */ 2677 if (tp->tp_firstwin == tp->tp_lastwin) 2678 { 2679 if (tp == first_tabpage) 2680 first_tabpage = tp->tp_next; 2681 else 2682 { 2683 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tp; 2684 ptp = ptp->tp_next) 2685 ; 2686 if (ptp == NULL) 2687 { 2688 internal_error("win_close_othertab()"); 2689 return; 2690 } 2691 ptp->tp_next = tp->tp_next; 2692 } 2693 free_tp = TRUE; 2694 } 2695 2696 /* Free the memory used for the window. */ 2697 win_free_mem(win, &dir, tp); 2698 2699 if (free_tp) 2700 free_tabpage(tp); 2701 } 2702 2703 /* 2704 * Free the memory used for a window. 2705 * Returns a pointer to the window that got the freed up space. 2706 */ 2707 static win_T * 2708 win_free_mem( 2709 win_T *win, 2710 int *dirp, /* set to 'v' or 'h' for direction if 'ea' */ 2711 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 2712 { 2713 frame_T *frp; 2714 win_T *wp; 2715 2716 /* Remove the window and its frame from the tree of frames. */ 2717 frp = win->w_frame; 2718 wp = winframe_remove(win, dirp, tp); 2719 vim_free(frp); 2720 win_free(win, tp); 2721 2722 /* When deleting the current window of another tab page select a new 2723 * current window. */ 2724 if (tp != NULL && win == tp->tp_curwin) 2725 tp->tp_curwin = wp; 2726 2727 return wp; 2728 } 2729 2730 #if defined(EXITFREE) || defined(PROTO) 2731 void 2732 win_free_all(void) 2733 { 2734 int dummy; 2735 2736 while (first_tabpage->tp_next != NULL) 2737 tabpage_close(TRUE); 2738 2739 if (aucmd_win != NULL) 2740 { 2741 (void)win_free_mem(aucmd_win, &dummy, NULL); 2742 aucmd_win = NULL; 2743 } 2744 # ifdef FEAT_TEXT_PROP 2745 close_all_popups(); 2746 # endif 2747 2748 while (firstwin != NULL) 2749 (void)win_free_mem(firstwin, &dummy, NULL); 2750 2751 /* No window should be used after this. Set curwin to NULL to crash 2752 * instead of using freed memory. */ 2753 curwin = NULL; 2754 } 2755 #endif 2756 2757 /* 2758 * Remove a window and its frame from the tree of frames. 2759 * Returns a pointer to the window that got the freed up space. 2760 */ 2761 win_T * 2762 winframe_remove( 2763 win_T *win, 2764 int *dirp UNUSED, /* set to 'v' or 'h' for direction if 'ea' */ 2765 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 2766 { 2767 frame_T *frp, *frp2, *frp3; 2768 frame_T *frp_close = win->w_frame; 2769 win_T *wp; 2770 2771 /* 2772 * If there is only one window there is nothing to remove. 2773 */ 2774 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 2775 return NULL; 2776 2777 /* 2778 * Remove the window from its frame. 2779 */ 2780 frp2 = win_altframe(win, tp); 2781 wp = frame2win(frp2); 2782 2783 /* Remove this frame from the list of frames. */ 2784 frame_remove(frp_close); 2785 2786 if (frp_close->fr_parent->fr_layout == FR_COL) 2787 { 2788 /* When 'winfixheight' is set, try to find another frame in the column 2789 * (as close to the closed frame as possible) to distribute the height 2790 * to. */ 2791 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfh) 2792 { 2793 frp = frp_close->fr_prev; 2794 frp3 = frp_close->fr_next; 2795 while (frp != NULL || frp3 != NULL) 2796 { 2797 if (frp != NULL) 2798 { 2799 if (!frame_fixed_height(frp)) 2800 { 2801 frp2 = frp; 2802 wp = frame2win(frp2); 2803 break; 2804 } 2805 frp = frp->fr_prev; 2806 } 2807 if (frp3 != NULL) 2808 { 2809 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfh) 2810 { 2811 frp2 = frp3; 2812 wp = frp3->fr_win; 2813 break; 2814 } 2815 frp3 = frp3->fr_next; 2816 } 2817 } 2818 } 2819 frame_new_height(frp2, frp2->fr_height + frp_close->fr_height, 2820 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2821 *dirp = 'v'; 2822 } 2823 else 2824 { 2825 /* When 'winfixwidth' is set, try to find another frame in the column 2826 * (as close to the closed frame as possible) to distribute the width 2827 * to. */ 2828 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfw) 2829 { 2830 frp = frp_close->fr_prev; 2831 frp3 = frp_close->fr_next; 2832 while (frp != NULL || frp3 != NULL) 2833 { 2834 if (frp != NULL) 2835 { 2836 if (!frame_fixed_width(frp)) 2837 { 2838 frp2 = frp; 2839 wp = frame2win(frp2); 2840 break; 2841 } 2842 frp = frp->fr_prev; 2843 } 2844 if (frp3 != NULL) 2845 { 2846 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfw) 2847 { 2848 frp2 = frp3; 2849 wp = frp3->fr_win; 2850 break; 2851 } 2852 frp3 = frp3->fr_next; 2853 } 2854 } 2855 } 2856 frame_new_width(frp2, frp2->fr_width + frp_close->fr_width, 2857 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2858 *dirp = 'h'; 2859 } 2860 2861 /* If rows/columns go to a window below/right its positions need to be 2862 * updated. Can only be done after the sizes have been updated. */ 2863 if (frp2 == frp_close->fr_next) 2864 { 2865 int row = win->w_winrow; 2866 int col = win->w_wincol; 2867 2868 frame_comp_pos(frp2, &row, &col); 2869 } 2870 2871 if (frp2->fr_next == NULL && frp2->fr_prev == NULL) 2872 { 2873 /* There is no other frame in this list, move its info to the parent 2874 * and remove it. */ 2875 frp2->fr_parent->fr_layout = frp2->fr_layout; 2876 frp2->fr_parent->fr_child = frp2->fr_child; 2877 FOR_ALL_FRAMES(frp, frp2->fr_child) 2878 frp->fr_parent = frp2->fr_parent; 2879 frp2->fr_parent->fr_win = frp2->fr_win; 2880 if (frp2->fr_win != NULL) 2881 frp2->fr_win->w_frame = frp2->fr_parent; 2882 frp = frp2->fr_parent; 2883 if (topframe->fr_child == frp2) 2884 topframe->fr_child = frp; 2885 vim_free(frp2); 2886 2887 frp2 = frp->fr_parent; 2888 if (frp2 != NULL && frp2->fr_layout == frp->fr_layout) 2889 { 2890 /* The frame above the parent has the same layout, have to merge 2891 * the frames into this list. */ 2892 if (frp2->fr_child == frp) 2893 frp2->fr_child = frp->fr_child; 2894 frp->fr_child->fr_prev = frp->fr_prev; 2895 if (frp->fr_prev != NULL) 2896 frp->fr_prev->fr_next = frp->fr_child; 2897 for (frp3 = frp->fr_child; ; frp3 = frp3->fr_next) 2898 { 2899 frp3->fr_parent = frp2; 2900 if (frp3->fr_next == NULL) 2901 { 2902 frp3->fr_next = frp->fr_next; 2903 if (frp->fr_next != NULL) 2904 frp->fr_next->fr_prev = frp3; 2905 break; 2906 } 2907 } 2908 if (topframe->fr_child == frp) 2909 topframe->fr_child = frp2; 2910 vim_free(frp); 2911 } 2912 } 2913 2914 return wp; 2915 } 2916 2917 /* 2918 * Return a pointer to the frame that will receive the empty screen space that 2919 * is left over after "win" is closed. 2920 * 2921 * If 'splitbelow' or 'splitright' is set, the space goes above or to the left 2922 * by default. Otherwise, the free space goes below or to the right. The 2923 * result is that opening a window and then immediately closing it will 2924 * preserve the initial window layout. The 'wfh' and 'wfw' settings are 2925 * respected when possible. 2926 */ 2927 static frame_T * 2928 win_altframe( 2929 win_T *win, 2930 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 2931 { 2932 frame_T *frp; 2933 frame_T *other_fr, *target_fr; 2934 2935 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 2936 return alt_tabpage()->tp_curwin->w_frame; 2937 2938 frp = win->w_frame; 2939 2940 if (frp->fr_prev == NULL) 2941 return frp->fr_next; 2942 if (frp->fr_next == NULL) 2943 return frp->fr_prev; 2944 2945 target_fr = frp->fr_next; 2946 other_fr = frp->fr_prev; 2947 if (p_spr || p_sb) 2948 { 2949 target_fr = frp->fr_prev; 2950 other_fr = frp->fr_next; 2951 } 2952 2953 /* If 'wfh' or 'wfw' is set for the target and not for the alternate 2954 * window, reverse the selection. */ 2955 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW) 2956 { 2957 if (frame_fixed_width(target_fr) && !frame_fixed_width(other_fr)) 2958 target_fr = other_fr; 2959 } 2960 else 2961 { 2962 if (frame_fixed_height(target_fr) && !frame_fixed_height(other_fr)) 2963 target_fr = other_fr; 2964 } 2965 2966 return target_fr; 2967 } 2968 2969 /* 2970 * Return the tabpage that will be used if the current one is closed. 2971 */ 2972 static tabpage_T * 2973 alt_tabpage(void) 2974 { 2975 tabpage_T *tp; 2976 2977 /* Use the next tab page if possible. */ 2978 if (curtab->tp_next != NULL) 2979 return curtab->tp_next; 2980 2981 /* Find the last but one tab page. */ 2982 for (tp = first_tabpage; tp->tp_next != curtab; tp = tp->tp_next) 2983 ; 2984 return tp; 2985 } 2986 2987 /* 2988 * Find the left-upper window in frame "frp". 2989 */ 2990 static win_T * 2991 frame2win(frame_T *frp) 2992 { 2993 while (frp->fr_win == NULL) 2994 frp = frp->fr_child; 2995 return frp->fr_win; 2996 } 2997 2998 /* 2999 * Return TRUE if frame "frp" contains window "wp". 3000 */ 3001 static int 3002 frame_has_win(frame_T *frp, win_T *wp) 3003 { 3004 frame_T *p; 3005 3006 if (frp->fr_layout == FR_LEAF) 3007 return frp->fr_win == wp; 3008 3009 FOR_ALL_FRAMES(p, frp->fr_child) 3010 if (frame_has_win(p, wp)) 3011 return TRUE; 3012 return FALSE; 3013 } 3014 3015 /* 3016 * Set a new height for a frame. Recursively sets the height for contained 3017 * frames and windows. Caller must take care of positions. 3018 */ 3019 static void 3020 frame_new_height( 3021 frame_T *topfrp, 3022 int height, 3023 int topfirst, /* resize topmost contained frame first */ 3024 int wfh) /* obey 'winfixheight' when there is a choice; 3025 may cause the height not to be set */ 3026 { 3027 frame_T *frp; 3028 int extra_lines; 3029 int h; 3030 3031 if (topfrp->fr_win != NULL) 3032 { 3033 /* Simple case: just one window. */ 3034 win_new_height(topfrp->fr_win, 3035 height - topfrp->fr_win->w_status_height 3036 - WINBAR_HEIGHT(topfrp->fr_win)); 3037 } 3038 else if (topfrp->fr_layout == FR_ROW) 3039 { 3040 do 3041 { 3042 /* All frames in this row get the same new height. */ 3043 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3044 { 3045 frame_new_height(frp, height, topfirst, wfh); 3046 if (frp->fr_height > height) 3047 { 3048 /* Could not fit the windows, make the whole row higher. */ 3049 height = frp->fr_height; 3050 break; 3051 } 3052 } 3053 } 3054 while (frp != NULL); 3055 } 3056 else /* fr_layout == FR_COL */ 3057 { 3058 /* Complicated case: Resize a column of frames. Resize the bottom 3059 * frame first, frames above that when needed. */ 3060 3061 frp = topfrp->fr_child; 3062 if (wfh) 3063 /* Advance past frames with one window with 'wfh' set. */ 3064 while (frame_fixed_height(frp)) 3065 { 3066 frp = frp->fr_next; 3067 if (frp == NULL) 3068 return; /* no frame without 'wfh', give up */ 3069 } 3070 if (!topfirst) 3071 { 3072 /* Find the bottom frame of this column */ 3073 while (frp->fr_next != NULL) 3074 frp = frp->fr_next; 3075 if (wfh) 3076 /* Advance back for frames with one window with 'wfh' set. */ 3077 while (frame_fixed_height(frp)) 3078 frp = frp->fr_prev; 3079 } 3080 3081 extra_lines = height - topfrp->fr_height; 3082 if (extra_lines < 0) 3083 { 3084 /* reduce height of contained frames, bottom or top frame first */ 3085 while (frp != NULL) 3086 { 3087 h = frame_minheight(frp, NULL); 3088 if (frp->fr_height + extra_lines < h) 3089 { 3090 extra_lines += frp->fr_height - h; 3091 frame_new_height(frp, h, topfirst, wfh); 3092 } 3093 else 3094 { 3095 frame_new_height(frp, frp->fr_height + extra_lines, 3096 topfirst, wfh); 3097 break; 3098 } 3099 if (topfirst) 3100 { 3101 do 3102 frp = frp->fr_next; 3103 while (wfh && frp != NULL && frame_fixed_height(frp)); 3104 } 3105 else 3106 { 3107 do 3108 frp = frp->fr_prev; 3109 while (wfh && frp != NULL && frame_fixed_height(frp)); 3110 } 3111 /* Increase "height" if we could not reduce enough frames. */ 3112 if (frp == NULL) 3113 height -= extra_lines; 3114 } 3115 } 3116 else if (extra_lines > 0) 3117 { 3118 /* increase height of bottom or top frame */ 3119 frame_new_height(frp, frp->fr_height + extra_lines, topfirst, wfh); 3120 } 3121 } 3122 topfrp->fr_height = height; 3123 } 3124 3125 /* 3126 * Return TRUE if height of frame "frp" should not be changed because of 3127 * the 'winfixheight' option. 3128 */ 3129 static int 3130 frame_fixed_height(frame_T *frp) 3131 { 3132 /* frame with one window: fixed height if 'winfixheight' set. */ 3133 if (frp->fr_win != NULL) 3134 return frp->fr_win->w_p_wfh; 3135 3136 if (frp->fr_layout == FR_ROW) 3137 { 3138 /* The frame is fixed height if one of the frames in the row is fixed 3139 * height. */ 3140 FOR_ALL_FRAMES(frp, frp->fr_child) 3141 if (frame_fixed_height(frp)) 3142 return TRUE; 3143 return FALSE; 3144 } 3145 3146 /* frp->fr_layout == FR_COL: The frame is fixed height if all of the 3147 * frames in the row are fixed height. */ 3148 FOR_ALL_FRAMES(frp, frp->fr_child) 3149 if (!frame_fixed_height(frp)) 3150 return FALSE; 3151 return TRUE; 3152 } 3153 3154 /* 3155 * Return TRUE if width of frame "frp" should not be changed because of 3156 * the 'winfixwidth' option. 3157 */ 3158 static int 3159 frame_fixed_width(frame_T *frp) 3160 { 3161 /* frame with one window: fixed width if 'winfixwidth' set. */ 3162 if (frp->fr_win != NULL) 3163 return frp->fr_win->w_p_wfw; 3164 3165 if (frp->fr_layout == FR_COL) 3166 { 3167 /* The frame is fixed width if one of the frames in the row is fixed 3168 * width. */ 3169 FOR_ALL_FRAMES(frp, frp->fr_child) 3170 if (frame_fixed_width(frp)) 3171 return TRUE; 3172 return FALSE; 3173 } 3174 3175 /* frp->fr_layout == FR_ROW: The frame is fixed width if all of the 3176 * frames in the row are fixed width. */ 3177 FOR_ALL_FRAMES(frp, frp->fr_child) 3178 if (!frame_fixed_width(frp)) 3179 return FALSE; 3180 return TRUE; 3181 } 3182 3183 /* 3184 * Add a status line to windows at the bottom of "frp". 3185 * Note: Does not check if there is room! 3186 */ 3187 static void 3188 frame_add_statusline(frame_T *frp) 3189 { 3190 win_T *wp; 3191 3192 if (frp->fr_layout == FR_LEAF) 3193 { 3194 wp = frp->fr_win; 3195 if (wp->w_status_height == 0) 3196 { 3197 if (wp->w_height > 0) /* don't make it negative */ 3198 --wp->w_height; 3199 wp->w_status_height = STATUS_HEIGHT; 3200 } 3201 } 3202 else if (frp->fr_layout == FR_ROW) 3203 { 3204 /* Handle all the frames in the row. */ 3205 FOR_ALL_FRAMES(frp, frp->fr_child) 3206 frame_add_statusline(frp); 3207 } 3208 else /* frp->fr_layout == FR_COL */ 3209 { 3210 /* Only need to handle the last frame in the column. */ 3211 for (frp = frp->fr_child; frp->fr_next != NULL; frp = frp->fr_next) 3212 ; 3213 frame_add_statusline(frp); 3214 } 3215 } 3216 3217 /* 3218 * Set width of a frame. Handles recursively going through contained frames. 3219 * May remove separator line for windows at the right side (for win_close()). 3220 */ 3221 static void 3222 frame_new_width( 3223 frame_T *topfrp, 3224 int width, 3225 int leftfirst, /* resize leftmost contained frame first */ 3226 int wfw) /* obey 'winfixwidth' when there is a choice; 3227 may cause the width not to be set */ 3228 { 3229 frame_T *frp; 3230 int extra_cols; 3231 int w; 3232 win_T *wp; 3233 3234 if (topfrp->fr_layout == FR_LEAF) 3235 { 3236 /* Simple case: just one window. */ 3237 wp = topfrp->fr_win; 3238 /* Find out if there are any windows right of this one. */ 3239 for (frp = topfrp; frp->fr_parent != NULL; frp = frp->fr_parent) 3240 if (frp->fr_parent->fr_layout == FR_ROW && frp->fr_next != NULL) 3241 break; 3242 if (frp->fr_parent == NULL) 3243 wp->w_vsep_width = 0; 3244 win_new_width(wp, width - wp->w_vsep_width); 3245 } 3246 else if (topfrp->fr_layout == FR_COL) 3247 { 3248 do 3249 { 3250 /* All frames in this column get the same new width. */ 3251 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3252 { 3253 frame_new_width(frp, width, leftfirst, wfw); 3254 if (frp->fr_width > width) 3255 { 3256 /* Could not fit the windows, make whole column wider. */ 3257 width = frp->fr_width; 3258 break; 3259 } 3260 } 3261 } while (frp != NULL); 3262 } 3263 else /* fr_layout == FR_ROW */ 3264 { 3265 /* Complicated case: Resize a row of frames. Resize the rightmost 3266 * frame first, frames left of it when needed. */ 3267 3268 frp = topfrp->fr_child; 3269 if (wfw) 3270 /* Advance past frames with one window with 'wfw' set. */ 3271 while (frame_fixed_width(frp)) 3272 { 3273 frp = frp->fr_next; 3274 if (frp == NULL) 3275 return; /* no frame without 'wfw', give up */ 3276 } 3277 if (!leftfirst) 3278 { 3279 /* Find the rightmost frame of this row */ 3280 while (frp->fr_next != NULL) 3281 frp = frp->fr_next; 3282 if (wfw) 3283 /* Advance back for frames with one window with 'wfw' set. */ 3284 while (frame_fixed_width(frp)) 3285 frp = frp->fr_prev; 3286 } 3287 3288 extra_cols = width - topfrp->fr_width; 3289 if (extra_cols < 0) 3290 { 3291 /* reduce frame width, rightmost frame first */ 3292 while (frp != NULL) 3293 { 3294 w = frame_minwidth(frp, NULL); 3295 if (frp->fr_width + extra_cols < w) 3296 { 3297 extra_cols += frp->fr_width - w; 3298 frame_new_width(frp, w, leftfirst, wfw); 3299 } 3300 else 3301 { 3302 frame_new_width(frp, frp->fr_width + extra_cols, 3303 leftfirst, wfw); 3304 break; 3305 } 3306 if (leftfirst) 3307 { 3308 do 3309 frp = frp->fr_next; 3310 while (wfw && frp != NULL && frame_fixed_width(frp)); 3311 } 3312 else 3313 { 3314 do 3315 frp = frp->fr_prev; 3316 while (wfw && frp != NULL && frame_fixed_width(frp)); 3317 } 3318 /* Increase "width" if we could not reduce enough frames. */ 3319 if (frp == NULL) 3320 width -= extra_cols; 3321 } 3322 } 3323 else if (extra_cols > 0) 3324 { 3325 /* increase width of rightmost frame */ 3326 frame_new_width(frp, frp->fr_width + extra_cols, leftfirst, wfw); 3327 } 3328 } 3329 topfrp->fr_width = width; 3330 } 3331 3332 /* 3333 * Add the vertical separator to windows at the right side of "frp". 3334 * Note: Does not check if there is room! 3335 */ 3336 static void 3337 frame_add_vsep(frame_T *frp) 3338 { 3339 win_T *wp; 3340 3341 if (frp->fr_layout == FR_LEAF) 3342 { 3343 wp = frp->fr_win; 3344 if (wp->w_vsep_width == 0) 3345 { 3346 if (wp->w_width > 0) /* don't make it negative */ 3347 --wp->w_width; 3348 wp->w_vsep_width = 1; 3349 } 3350 } 3351 else if (frp->fr_layout == FR_COL) 3352 { 3353 /* Handle all the frames in the column. */ 3354 FOR_ALL_FRAMES(frp, frp->fr_child) 3355 frame_add_vsep(frp); 3356 } 3357 else /* frp->fr_layout == FR_ROW */ 3358 { 3359 /* Only need to handle the last frame in the row. */ 3360 frp = frp->fr_child; 3361 while (frp->fr_next != NULL) 3362 frp = frp->fr_next; 3363 frame_add_vsep(frp); 3364 } 3365 } 3366 3367 /* 3368 * Set frame width from the window it contains. 3369 */ 3370 static void 3371 frame_fix_width(win_T *wp) 3372 { 3373 wp->w_frame->fr_width = wp->w_width + wp->w_vsep_width; 3374 } 3375 3376 /* 3377 * Set frame height from the window it contains. 3378 */ 3379 static void 3380 frame_fix_height(win_T *wp) 3381 { 3382 wp->w_frame->fr_height = VISIBLE_HEIGHT(wp) + wp->w_status_height; 3383 } 3384 3385 /* 3386 * Compute the minimal height for frame "topfrp". 3387 * Uses the 'winminheight' option. 3388 * When "next_curwin" isn't NULL, use p_wh for this window. 3389 * When "next_curwin" is NOWIN, don't use at least one line for the current 3390 * window. 3391 */ 3392 static int 3393 frame_minheight(frame_T *topfrp, win_T *next_curwin) 3394 { 3395 frame_T *frp; 3396 int m; 3397 int n; 3398 3399 if (topfrp->fr_win != NULL) 3400 { 3401 if (topfrp->fr_win == next_curwin) 3402 m = p_wh + topfrp->fr_win->w_status_height; 3403 else 3404 { 3405 /* window: minimal height of the window plus status line */ 3406 m = p_wmh + topfrp->fr_win->w_status_height; 3407 if (topfrp->fr_win == curwin && next_curwin == NULL) 3408 { 3409 /* Current window is minimal one line high and WinBar is 3410 * visible. */ 3411 if (p_wmh == 0) 3412 ++m; 3413 m += WINBAR_HEIGHT(curwin); 3414 } 3415 } 3416 } 3417 else if (topfrp->fr_layout == FR_ROW) 3418 { 3419 /* get the minimal height from each frame in this row */ 3420 m = 0; 3421 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3422 { 3423 n = frame_minheight(frp, next_curwin); 3424 if (n > m) 3425 m = n; 3426 } 3427 } 3428 else 3429 { 3430 /* Add up the minimal heights for all frames in this column. */ 3431 m = 0; 3432 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3433 m += frame_minheight(frp, next_curwin); 3434 } 3435 3436 return m; 3437 } 3438 3439 /* 3440 * Compute the minimal width for frame "topfrp". 3441 * When "next_curwin" isn't NULL, use p_wiw for this window. 3442 * When "next_curwin" is NOWIN, don't use at least one column for the current 3443 * window. 3444 */ 3445 static int 3446 frame_minwidth( 3447 frame_T *topfrp, 3448 win_T *next_curwin) /* use p_wh and p_wiw for next_curwin */ 3449 { 3450 frame_T *frp; 3451 int m, n; 3452 3453 if (topfrp->fr_win != NULL) 3454 { 3455 if (topfrp->fr_win == next_curwin) 3456 m = p_wiw + topfrp->fr_win->w_vsep_width; 3457 else 3458 { 3459 /* window: minimal width of the window plus separator column */ 3460 m = p_wmw + topfrp->fr_win->w_vsep_width; 3461 /* Current window is minimal one column wide */ 3462 if (p_wmw == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3463 ++m; 3464 } 3465 } 3466 else if (topfrp->fr_layout == FR_COL) 3467 { 3468 /* get the minimal width from each frame in this column */ 3469 m = 0; 3470 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3471 { 3472 n = frame_minwidth(frp, next_curwin); 3473 if (n > m) 3474 m = n; 3475 } 3476 } 3477 else 3478 { 3479 /* Add up the minimal widths for all frames in this row. */ 3480 m = 0; 3481 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3482 m += frame_minwidth(frp, next_curwin); 3483 } 3484 3485 return m; 3486 } 3487 3488 3489 /* 3490 * Try to close all windows except current one. 3491 * Buffers in the other windows become hidden if 'hidden' is set, or '!' is 3492 * used and the buffer was modified. 3493 * 3494 * Used by ":bdel" and ":only". 3495 */ 3496 void 3497 close_others( 3498 int message, 3499 int forceit) /* always hide all other windows */ 3500 { 3501 win_T *wp; 3502 win_T *nextwp; 3503 int r; 3504 3505 if (one_window()) 3506 { 3507 if (message && !autocmd_busy) 3508 msg(_(m_onlyone)); 3509 return; 3510 } 3511 3512 /* Be very careful here: autocommands may change the window layout. */ 3513 for (wp = firstwin; win_valid(wp); wp = nextwp) 3514 { 3515 nextwp = wp->w_next; 3516 if (wp != curwin) /* don't close current window */ 3517 { 3518 3519 /* Check if it's allowed to abandon this window */ 3520 r = can_abandon(wp->w_buffer, forceit); 3521 if (!win_valid(wp)) /* autocommands messed wp up */ 3522 { 3523 nextwp = firstwin; 3524 continue; 3525 } 3526 if (!r) 3527 { 3528 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 3529 if (message && (p_confirm || cmdmod.confirm) && p_write) 3530 { 3531 dialog_changed(wp->w_buffer, FALSE); 3532 if (!win_valid(wp)) /* autocommands messed wp up */ 3533 { 3534 nextwp = firstwin; 3535 continue; 3536 } 3537 } 3538 if (bufIsChanged(wp->w_buffer)) 3539 #endif 3540 continue; 3541 } 3542 win_close(wp, !buf_hide(wp->w_buffer) 3543 && !bufIsChanged(wp->w_buffer)); 3544 } 3545 } 3546 3547 if (message && !ONE_WINDOW) 3548 emsg(_("E445: Other window contains changes")); 3549 } 3550 3551 static void 3552 win_init_empty(win_T *wp) 3553 { 3554 redraw_win_later(wp, NOT_VALID); 3555 wp->w_lines_valid = 0; 3556 wp->w_cursor.lnum = 1; 3557 wp->w_curswant = wp->w_cursor.col = 0; 3558 wp->w_cursor.coladd = 0; 3559 wp->w_pcmark.lnum = 1; /* pcmark not cleared but set to line 1 */ 3560 wp->w_pcmark.col = 0; 3561 wp->w_prev_pcmark.lnum = 0; 3562 wp->w_prev_pcmark.col = 0; 3563 wp->w_topline = 1; 3564 #ifdef FEAT_DIFF 3565 wp->w_topfill = 0; 3566 #endif 3567 wp->w_botline = 2; 3568 #if defined(FEAT_SYN_HL) || defined(FEAT_SPELL) 3569 wp->w_s = &wp->w_buffer->b_s; 3570 #endif 3571 } 3572 3573 /* 3574 * Init the current window "curwin". 3575 * Called when a new file is being edited. 3576 */ 3577 void 3578 curwin_init(void) 3579 { 3580 win_init_empty(curwin); 3581 } 3582 3583 /* 3584 * Allocate the first window and put an empty buffer in it. 3585 * Called from main(). 3586 * Return FAIL when something goes wrong (out of memory). 3587 */ 3588 int 3589 win_alloc_first(void) 3590 { 3591 if (win_alloc_firstwin(NULL) == FAIL) 3592 return FAIL; 3593 3594 first_tabpage = alloc_tabpage(); 3595 if (first_tabpage == NULL) 3596 return FAIL; 3597 first_tabpage->tp_topframe = topframe; 3598 curtab = first_tabpage; 3599 3600 return OK; 3601 } 3602 3603 /* 3604 * Allocate and init a window that is not a regular window. 3605 * This can only be done after the first window is fully initialized, thus it 3606 * can't be in win_alloc_first(). 3607 */ 3608 win_T * 3609 win_alloc_popup_win(void) 3610 { 3611 win_T *wp; 3612 3613 wp = win_alloc(NULL, TRUE); 3614 if (wp != NULL) 3615 { 3616 // We need to initialize options with something, using the current 3617 // window makes most sense. 3618 win_init_some(wp, curwin); 3619 3620 RESET_BINDING(wp); 3621 new_frame(wp); 3622 } 3623 return wp; 3624 } 3625 3626 /* 3627 * Initialize window "wp" to display buffer "buf". 3628 */ 3629 void 3630 win_init_popup_win(win_T *wp, buf_T *buf) 3631 { 3632 wp->w_buffer = buf; 3633 ++buf->b_nwindows; 3634 win_init_empty(wp); // set cursor and topline to safe values 3635 3636 // Make sure w_localdir and globaldir are NULL to avoid a chdir() in 3637 // win_enter_ext(). 3638 VIM_CLEAR(wp->w_localdir); 3639 } 3640 3641 /* 3642 * Allocate the first window or the first window in a new tab page. 3643 * When "oldwin" is NULL create an empty buffer for it. 3644 * When "oldwin" is not NULL copy info from it to the new window. 3645 * Return FAIL when something goes wrong (out of memory). 3646 */ 3647 static int 3648 win_alloc_firstwin(win_T *oldwin) 3649 { 3650 curwin = win_alloc(NULL, FALSE); 3651 if (oldwin == NULL) 3652 { 3653 /* Very first window, need to create an empty buffer for it and 3654 * initialize from scratch. */ 3655 curbuf = buflist_new(NULL, NULL, 1L, BLN_LISTED); 3656 if (curwin == NULL || curbuf == NULL) 3657 return FAIL; 3658 curwin->w_buffer = curbuf; 3659 #ifdef FEAT_SYN_HL 3660 curwin->w_s = &(curbuf->b_s); 3661 #endif 3662 curbuf->b_nwindows = 1; /* there is one window */ 3663 curwin->w_alist = &global_alist; 3664 curwin_init(); /* init current window */ 3665 } 3666 else 3667 { 3668 /* First window in new tab page, initialize it from "oldwin". */ 3669 win_init(curwin, oldwin, 0); 3670 3671 /* We don't want cursor- and scroll-binding in the first window. */ 3672 RESET_BINDING(curwin); 3673 } 3674 3675 new_frame(curwin); 3676 if (curwin->w_frame == NULL) 3677 return FAIL; 3678 topframe = curwin->w_frame; 3679 topframe->fr_width = Columns; 3680 topframe->fr_height = Rows - p_ch; 3681 3682 return OK; 3683 } 3684 3685 /* 3686 * Create a frame for window "wp". 3687 */ 3688 static void 3689 new_frame(win_T *wp) 3690 { 3691 frame_T *frp = ALLOC_CLEAR_ONE(frame_T); 3692 3693 wp->w_frame = frp; 3694 if (frp != NULL) 3695 { 3696 frp->fr_layout = FR_LEAF; 3697 frp->fr_win = wp; 3698 } 3699 } 3700 3701 /* 3702 * Initialize the window and frame size to the maximum. 3703 */ 3704 void 3705 win_init_size(void) 3706 { 3707 firstwin->w_height = ROWS_AVAIL; 3708 topframe->fr_height = ROWS_AVAIL; 3709 firstwin->w_width = Columns; 3710 topframe->fr_width = Columns; 3711 } 3712 3713 /* 3714 * Allocate a new tabpage_T and init the values. 3715 * Returns NULL when out of memory. 3716 */ 3717 static tabpage_T * 3718 alloc_tabpage(void) 3719 { 3720 tabpage_T *tp; 3721 # ifdef FEAT_GUI 3722 int i; 3723 # endif 3724 3725 3726 tp = ALLOC_CLEAR_ONE(tabpage_T); 3727 if (tp == NULL) 3728 return NULL; 3729 3730 # ifdef FEAT_EVAL 3731 /* init t: variables */ 3732 tp->tp_vars = dict_alloc(); 3733 if (tp->tp_vars == NULL) 3734 { 3735 vim_free(tp); 3736 return NULL; 3737 } 3738 init_var_dict(tp->tp_vars, &tp->tp_winvar, VAR_SCOPE); 3739 # endif 3740 3741 # ifdef FEAT_GUI 3742 for (i = 0; i < 3; i++) 3743 tp->tp_prev_which_scrollbars[i] = -1; 3744 # endif 3745 # ifdef FEAT_DIFF 3746 tp->tp_diff_invalid = TRUE; 3747 # endif 3748 tp->tp_ch_used = p_ch; 3749 3750 return tp; 3751 } 3752 3753 void 3754 free_tabpage(tabpage_T *tp) 3755 { 3756 int idx; 3757 3758 # ifdef FEAT_DIFF 3759 diff_clear(tp); 3760 # endif 3761 # ifdef FEAT_TEXT_PROP 3762 while (tp->tp_first_popupwin != NULL) 3763 popup_close_tabpage(tp, tp->tp_first_popupwin->w_id); 3764 #endif 3765 for (idx = 0; idx < SNAP_COUNT; ++idx) 3766 clear_snapshot(tp, idx); 3767 #ifdef FEAT_EVAL 3768 vars_clear(&tp->tp_vars->dv_hashtab); /* free all t: variables */ 3769 hash_init(&tp->tp_vars->dv_hashtab); 3770 unref_var_dict(tp->tp_vars); 3771 #endif 3772 3773 vim_free(tp->tp_localdir); 3774 3775 #ifdef FEAT_PYTHON 3776 python_tabpage_free(tp); 3777 #endif 3778 3779 #ifdef FEAT_PYTHON3 3780 python3_tabpage_free(tp); 3781 #endif 3782 3783 vim_free(tp); 3784 } 3785 3786 /* 3787 * Create a new Tab page with one window. 3788 * It will edit the current buffer, like after ":split". 3789 * When "after" is 0 put it just after the current Tab page. 3790 * Otherwise put it just before tab page "after". 3791 * Return FAIL or OK. 3792 */ 3793 int 3794 win_new_tabpage(int after) 3795 { 3796 tabpage_T *tp = curtab; 3797 tabpage_T *newtp; 3798 int n; 3799 3800 newtp = alloc_tabpage(); 3801 if (newtp == NULL) 3802 return FAIL; 3803 3804 /* Remember the current windows in this Tab page. */ 3805 if (leave_tabpage(curbuf, TRUE) == FAIL) 3806 { 3807 vim_free(newtp); 3808 return FAIL; 3809 } 3810 curtab = newtp; 3811 3812 newtp->tp_localdir = (tp->tp_localdir == NULL) 3813 ? NULL : vim_strsave(tp->tp_localdir); 3814 /* Create a new empty window. */ 3815 if (win_alloc_firstwin(tp->tp_curwin) == OK) 3816 { 3817 /* Make the new Tab page the new topframe. */ 3818 if (after == 1) 3819 { 3820 /* New tab page becomes the first one. */ 3821 newtp->tp_next = first_tabpage; 3822 first_tabpage = newtp; 3823 } 3824 else 3825 { 3826 if (after > 0) 3827 { 3828 /* Put new tab page before tab page "after". */ 3829 n = 2; 3830 for (tp = first_tabpage; tp->tp_next != NULL 3831 && n < after; tp = tp->tp_next) 3832 ++n; 3833 } 3834 newtp->tp_next = tp->tp_next; 3835 tp->tp_next = newtp; 3836 } 3837 win_init_size(); 3838 firstwin->w_winrow = tabline_height(); 3839 win_comp_scroll(curwin); 3840 3841 newtp->tp_topframe = topframe; 3842 last_status(FALSE); 3843 3844 #if defined(FEAT_GUI) 3845 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 3846 * scrollbars. Have to update them anyway. */ 3847 gui_may_update_scrollbars(); 3848 #endif 3849 #ifdef FEAT_JOB_CHANNEL 3850 entering_window(curwin); 3851 #endif 3852 3853 redraw_all_later(NOT_VALID); 3854 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 3855 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 3856 apply_autocmds(EVENT_TABNEW, NULL, NULL, FALSE, curbuf); 3857 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3858 return OK; 3859 } 3860 3861 /* Failed, get back the previous Tab page */ 3862 enter_tabpage(curtab, curbuf, TRUE, TRUE); 3863 return FAIL; 3864 } 3865 3866 /* 3867 * Open a new tab page if ":tab cmd" was used. It will edit the same buffer, 3868 * like with ":split". 3869 * Returns OK if a new tab page was created, FAIL otherwise. 3870 */ 3871 static int 3872 may_open_tabpage(void) 3873 { 3874 int n = (cmdmod.tab == 0) ? postponed_split_tab : cmdmod.tab; 3875 3876 if (n != 0) 3877 { 3878 cmdmod.tab = 0; /* reset it to avoid doing it twice */ 3879 postponed_split_tab = 0; 3880 return win_new_tabpage(n); 3881 } 3882 return FAIL; 3883 } 3884 3885 /* 3886 * Create up to "maxcount" tabpages with empty windows. 3887 * Returns the number of resulting tab pages. 3888 */ 3889 int 3890 make_tabpages(int maxcount) 3891 { 3892 int count = maxcount; 3893 int todo; 3894 3895 /* Limit to 'tabpagemax' tabs. */ 3896 if (count > p_tpm) 3897 count = p_tpm; 3898 3899 /* 3900 * Don't execute autocommands while creating the tab pages. Must do that 3901 * when putting the buffers in the windows. 3902 */ 3903 block_autocmds(); 3904 3905 for (todo = count - 1; todo > 0; --todo) 3906 if (win_new_tabpage(0) == FAIL) 3907 break; 3908 3909 unblock_autocmds(); 3910 3911 /* return actual number of tab pages */ 3912 return (count - todo); 3913 } 3914 3915 /* 3916 * Return TRUE when "tpc" points to a valid tab page. 3917 */ 3918 int 3919 valid_tabpage(tabpage_T *tpc) 3920 { 3921 tabpage_T *tp; 3922 3923 FOR_ALL_TABPAGES(tp) 3924 if (tp == tpc) 3925 return TRUE; 3926 return FALSE; 3927 } 3928 3929 /* 3930 * Return TRUE when "tpc" points to a valid tab page and at least one window is 3931 * valid. 3932 */ 3933 int 3934 valid_tabpage_win(tabpage_T *tpc) 3935 { 3936 tabpage_T *tp; 3937 win_T *wp; 3938 3939 FOR_ALL_TABPAGES(tp) 3940 { 3941 if (tp == tpc) 3942 { 3943 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 3944 { 3945 if (win_valid_any_tab(wp)) 3946 return TRUE; 3947 } 3948 return FALSE; 3949 } 3950 } 3951 /* shouldn't happen */ 3952 return FALSE; 3953 } 3954 3955 /* 3956 * Close tabpage "tab", assuming it has no windows in it. 3957 * There must be another tabpage or this will crash. 3958 */ 3959 void 3960 close_tabpage(tabpage_T *tab) 3961 { 3962 tabpage_T *ptp; 3963 3964 if (tab == first_tabpage) 3965 { 3966 first_tabpage = tab->tp_next; 3967 ptp = first_tabpage; 3968 } 3969 else 3970 { 3971 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tab; 3972 ptp = ptp->tp_next) 3973 ; 3974 assert(ptp != NULL); 3975 ptp->tp_next = tab->tp_next; 3976 } 3977 3978 goto_tabpage_tp(ptp, FALSE, FALSE); 3979 free_tabpage(tab); 3980 } 3981 3982 /* 3983 * Find tab page "n" (first one is 1). Returns NULL when not found. 3984 */ 3985 tabpage_T * 3986 find_tabpage(int n) 3987 { 3988 tabpage_T *tp; 3989 int i = 1; 3990 3991 if (n == 0) 3992 return curtab; 3993 3994 for (tp = first_tabpage; tp != NULL && i != n; tp = tp->tp_next) 3995 ++i; 3996 return tp; 3997 } 3998 3999 /* 4000 * Get index of tab page "tp". First one has index 1. 4001 * When not found returns number of tab pages plus one. 4002 */ 4003 int 4004 tabpage_index(tabpage_T *ftp) 4005 { 4006 int i = 1; 4007 tabpage_T *tp; 4008 4009 for (tp = first_tabpage; tp != NULL && tp != ftp; tp = tp->tp_next) 4010 ++i; 4011 return i; 4012 } 4013 4014 /* 4015 * Prepare for leaving the current tab page. 4016 * When autocommands change "curtab" we don't leave the tab page and return 4017 * FAIL. 4018 * Careful: When OK is returned need to get a new tab page very very soon! 4019 */ 4020 static int 4021 leave_tabpage( 4022 buf_T *new_curbuf UNUSED, /* what is going to be the new curbuf, 4023 NULL if unknown */ 4024 int trigger_leave_autocmds UNUSED) 4025 { 4026 tabpage_T *tp = curtab; 4027 4028 #ifdef FEAT_JOB_CHANNEL 4029 leaving_window(curwin); 4030 #endif 4031 reset_VIsual_and_resel(); /* stop Visual mode */ 4032 if (trigger_leave_autocmds) 4033 { 4034 if (new_curbuf != curbuf) 4035 { 4036 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4037 if (curtab != tp) 4038 return FAIL; 4039 } 4040 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4041 if (curtab != tp) 4042 return FAIL; 4043 apply_autocmds(EVENT_TABLEAVE, NULL, NULL, FALSE, curbuf); 4044 if (curtab != tp) 4045 return FAIL; 4046 } 4047 #if defined(FEAT_GUI) 4048 /* Remove the scrollbars. They may be added back later. */ 4049 if (gui.in_use) 4050 gui_remove_scrollbars(); 4051 #endif 4052 tp->tp_curwin = curwin; 4053 tp->tp_prevwin = prevwin; 4054 tp->tp_firstwin = firstwin; 4055 tp->tp_lastwin = lastwin; 4056 tp->tp_old_Rows = Rows; 4057 tp->tp_old_Columns = Columns; 4058 firstwin = NULL; 4059 lastwin = NULL; 4060 return OK; 4061 } 4062 4063 /* 4064 * Start using tab page "tp". 4065 * Only to be used after leave_tabpage() or freeing the current tab page. 4066 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4067 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4068 */ 4069 static void 4070 enter_tabpage( 4071 tabpage_T *tp, 4072 buf_T *old_curbuf UNUSED, 4073 int trigger_enter_autocmds, 4074 int trigger_leave_autocmds) 4075 { 4076 int old_off = tp->tp_firstwin->w_winrow; 4077 win_T *next_prevwin = tp->tp_prevwin; 4078 4079 curtab = tp; 4080 firstwin = tp->tp_firstwin; 4081 lastwin = tp->tp_lastwin; 4082 topframe = tp->tp_topframe; 4083 4084 /* We would like doing the TabEnter event first, but we don't have a 4085 * valid current window yet, which may break some commands. 4086 * This triggers autocommands, thus may make "tp" invalid. */ 4087 win_enter_ext(tp->tp_curwin, FALSE, TRUE, FALSE, 4088 trigger_enter_autocmds, trigger_leave_autocmds); 4089 prevwin = next_prevwin; 4090 4091 last_status(FALSE); /* status line may appear or disappear */ 4092 (void)win_comp_pos(); /* recompute w_winrow for all windows */ 4093 #ifdef FEAT_DIFF 4094 diff_need_scrollbind = TRUE; 4095 #endif 4096 4097 /* The tabpage line may have appeared or disappeared, may need to resize 4098 * the frames for that. When the Vim window was resized need to update 4099 * frame sizes too. Use the stored value of p_ch, so that it can be 4100 * different for each tab page. */ 4101 if (p_ch != curtab->tp_ch_used) 4102 clear_cmdline = TRUE; 4103 p_ch = curtab->tp_ch_used; 4104 if (curtab->tp_old_Rows != Rows || (old_off != firstwin->w_winrow 4105 #ifdef FEAT_GUI_TABLINE 4106 && !gui_use_tabline() 4107 #endif 4108 )) 4109 shell_new_rows(); 4110 if (curtab->tp_old_Columns != Columns && starting == 0) 4111 shell_new_columns(); /* update window widths */ 4112 4113 #if defined(FEAT_GUI) 4114 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 4115 * scrollbars. Have to update them anyway. */ 4116 gui_may_update_scrollbars(); 4117 #endif 4118 4119 /* Apply autocommands after updating the display, when 'rows' and 4120 * 'columns' have been set correctly. */ 4121 if (trigger_enter_autocmds) 4122 { 4123 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 4124 if (old_curbuf != curbuf) 4125 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4126 } 4127 4128 redraw_all_later(NOT_VALID); 4129 } 4130 4131 /* 4132 * Go to tab page "n". For ":tab N" and "Ngt". 4133 * When "n" is 9999 go to the last tab page. 4134 */ 4135 void 4136 goto_tabpage(int n) 4137 { 4138 tabpage_T *tp = NULL; // shut up compiler 4139 tabpage_T *ttp; 4140 int i; 4141 4142 if (text_locked()) 4143 { 4144 /* Not allowed when editing the command line. */ 4145 text_locked_msg(); 4146 return; 4147 } 4148 4149 /* If there is only one it can't work. */ 4150 if (first_tabpage->tp_next == NULL) 4151 { 4152 if (n > 1) 4153 beep_flush(); 4154 return; 4155 } 4156 4157 if (n == 0) 4158 { 4159 /* No count, go to next tab page, wrap around end. */ 4160 if (curtab->tp_next == NULL) 4161 tp = first_tabpage; 4162 else 4163 tp = curtab->tp_next; 4164 } 4165 else if (n < 0) 4166 { 4167 /* "gT": go to previous tab page, wrap around end. "N gT" repeats 4168 * this N times. */ 4169 ttp = curtab; 4170 for (i = n; i < 0; ++i) 4171 { 4172 for (tp = first_tabpage; tp->tp_next != ttp && tp->tp_next != NULL; 4173 tp = tp->tp_next) 4174 ; 4175 ttp = tp; 4176 } 4177 } 4178 else if (n == 9999) 4179 { 4180 /* Go to last tab page. */ 4181 for (tp = first_tabpage; tp->tp_next != NULL; tp = tp->tp_next) 4182 ; 4183 } 4184 else 4185 { 4186 /* Go to tab page "n". */ 4187 tp = find_tabpage(n); 4188 if (tp == NULL) 4189 { 4190 beep_flush(); 4191 return; 4192 } 4193 } 4194 4195 goto_tabpage_tp(tp, TRUE, TRUE); 4196 4197 #ifdef FEAT_GUI_TABLINE 4198 if (gui_use_tabline()) 4199 gui_mch_set_curtab(tabpage_index(curtab)); 4200 #endif 4201 } 4202 4203 /* 4204 * Go to tabpage "tp". 4205 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4206 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4207 * Note: doesn't update the GUI tab. 4208 */ 4209 void 4210 goto_tabpage_tp( 4211 tabpage_T *tp, 4212 int trigger_enter_autocmds, 4213 int trigger_leave_autocmds) 4214 { 4215 /* Don't repeat a message in another tab page. */ 4216 set_keep_msg(NULL, 0); 4217 4218 if (tp != curtab && leave_tabpage(tp->tp_curwin->w_buffer, 4219 trigger_leave_autocmds) == OK) 4220 { 4221 if (valid_tabpage(tp)) 4222 enter_tabpage(tp, curbuf, trigger_enter_autocmds, 4223 trigger_leave_autocmds); 4224 else 4225 enter_tabpage(curtab, curbuf, trigger_enter_autocmds, 4226 trigger_leave_autocmds); 4227 } 4228 } 4229 4230 /* 4231 * Enter window "wp" in tab page "tp". 4232 * Also updates the GUI tab. 4233 */ 4234 void 4235 goto_tabpage_win(tabpage_T *tp, win_T *wp) 4236 { 4237 goto_tabpage_tp(tp, TRUE, TRUE); 4238 if (curtab == tp && win_valid(wp)) 4239 { 4240 win_enter(wp, TRUE); 4241 # ifdef FEAT_GUI_TABLINE 4242 if (gui_use_tabline()) 4243 gui_mch_set_curtab(tabpage_index(curtab)); 4244 # endif 4245 } 4246 } 4247 4248 /* 4249 * Move the current tab page to after tab page "nr". 4250 */ 4251 void 4252 tabpage_move(int nr) 4253 { 4254 int n = 1; 4255 tabpage_T *tp, *tp_dst; 4256 4257 if (first_tabpage->tp_next == NULL) 4258 return; 4259 4260 for (tp = first_tabpage; tp->tp_next != NULL && n < nr; tp = tp->tp_next) 4261 ++n; 4262 4263 if (tp == curtab || (nr > 0 && tp->tp_next != NULL 4264 && tp->tp_next == curtab)) 4265 return; 4266 4267 tp_dst = tp; 4268 4269 /* Remove the current tab page from the list of tab pages. */ 4270 if (curtab == first_tabpage) 4271 first_tabpage = curtab->tp_next; 4272 else 4273 { 4274 FOR_ALL_TABPAGES(tp) 4275 if (tp->tp_next == curtab) 4276 break; 4277 if (tp == NULL) /* "cannot happen" */ 4278 return; 4279 tp->tp_next = curtab->tp_next; 4280 } 4281 4282 /* Re-insert it at the specified position. */ 4283 if (nr <= 0) 4284 { 4285 curtab->tp_next = first_tabpage; 4286 first_tabpage = curtab; 4287 } 4288 else 4289 { 4290 curtab->tp_next = tp_dst->tp_next; 4291 tp_dst->tp_next = curtab; 4292 } 4293 4294 /* Need to redraw the tabline. Tab page contents doesn't change. */ 4295 redraw_tabline = TRUE; 4296 } 4297 4298 4299 /* 4300 * Go to another window. 4301 * When jumping to another buffer, stop Visual mode. Do this before 4302 * changing windows so we can yank the selection into the '*' register. 4303 * When jumping to another window on the same buffer, adjust its cursor 4304 * position to keep the same Visual area. 4305 */ 4306 void 4307 win_goto(win_T *wp) 4308 { 4309 #ifdef FEAT_CONCEAL 4310 win_T *owp = curwin; 4311 #endif 4312 4313 if (ERROR_IF_POPUP_WINDOW) 4314 return; 4315 if (text_locked()) 4316 { 4317 beep_flush(); 4318 text_locked_msg(); 4319 return; 4320 } 4321 if (curbuf_locked()) 4322 return; 4323 4324 if (wp->w_buffer != curbuf) 4325 reset_VIsual_and_resel(); 4326 else if (VIsual_active) 4327 wp->w_cursor = curwin->w_cursor; 4328 4329 #ifdef FEAT_GUI 4330 need_mouse_correct = TRUE; 4331 #endif 4332 win_enter(wp, TRUE); 4333 4334 #ifdef FEAT_CONCEAL 4335 // Conceal cursor line in previous window, unconceal in current window. 4336 if (win_valid(owp) && owp->w_p_cole > 0 && !msg_scrolled) 4337 redrawWinline(owp, owp->w_cursor.lnum); 4338 if (curwin->w_p_cole > 0 && !msg_scrolled) 4339 need_cursor_line_redraw = TRUE; 4340 #endif 4341 } 4342 4343 #if defined(FEAT_PERL) || defined(PROTO) 4344 /* 4345 * Find window number "winnr" (counting top to bottom). 4346 */ 4347 win_T * 4348 win_find_nr(int winnr) 4349 { 4350 win_T *wp; 4351 4352 FOR_ALL_WINDOWS(wp) 4353 if (--winnr == 0) 4354 break; 4355 return wp; 4356 } 4357 #endif 4358 4359 #if ((defined(FEAT_PYTHON) || defined(FEAT_PYTHON3))) || defined(PROTO) 4360 /* 4361 * Find the tabpage for window "win". 4362 */ 4363 tabpage_T * 4364 win_find_tabpage(win_T *win) 4365 { 4366 win_T *wp; 4367 tabpage_T *tp; 4368 4369 FOR_ALL_TAB_WINDOWS(tp, wp) 4370 if (wp == win) 4371 return tp; 4372 return NULL; 4373 } 4374 #endif 4375 4376 /* 4377 * Get the above or below neighbor window of the specified window. 4378 * up - TRUE for the above neighbor 4379 * count - nth neighbor window 4380 * Returns the specified window if the neighbor is not found. 4381 */ 4382 win_T * 4383 win_vert_neighbor(tabpage_T *tp, win_T *wp, int up, long count) 4384 { 4385 frame_T *fr; 4386 frame_T *nfr; 4387 frame_T *foundfr; 4388 4389 foundfr = wp->w_frame; 4390 while (count--) 4391 { 4392 /* 4393 * First go upwards in the tree of frames until we find a upwards or 4394 * downwards neighbor. 4395 */ 4396 fr = foundfr; 4397 for (;;) 4398 { 4399 if (fr == tp->tp_topframe) 4400 goto end; 4401 if (up) 4402 nfr = fr->fr_prev; 4403 else 4404 nfr = fr->fr_next; 4405 if (fr->fr_parent->fr_layout == FR_COL && nfr != NULL) 4406 break; 4407 fr = fr->fr_parent; 4408 } 4409 4410 /* 4411 * Now go downwards to find the bottom or top frame in it. 4412 */ 4413 for (;;) 4414 { 4415 if (nfr->fr_layout == FR_LEAF) 4416 { 4417 foundfr = nfr; 4418 break; 4419 } 4420 fr = nfr->fr_child; 4421 if (nfr->fr_layout == FR_ROW) 4422 { 4423 /* Find the frame at the cursor row. */ 4424 while (fr->fr_next != NULL 4425 && frame2win(fr)->w_wincol + fr->fr_width 4426 <= wp->w_wincol + wp->w_wcol) 4427 fr = fr->fr_next; 4428 } 4429 if (nfr->fr_layout == FR_COL && up) 4430 while (fr->fr_next != NULL) 4431 fr = fr->fr_next; 4432 nfr = fr; 4433 } 4434 } 4435 end: 4436 return foundfr != NULL ? foundfr->fr_win : NULL; 4437 } 4438 4439 /* 4440 * Move to window above or below "count" times. 4441 */ 4442 static void 4443 win_goto_ver( 4444 int up, // TRUE to go to win above 4445 long count) 4446 { 4447 win_T *win; 4448 4449 win = win_vert_neighbor(curtab, curwin, up, count); 4450 if (win != NULL) 4451 win_goto(win); 4452 } 4453 4454 /* 4455 * Get the left or right neighbor window of the specified window. 4456 * left - TRUE for the left neighbor 4457 * count - nth neighbor window 4458 * Returns the specified window if the neighbor is not found. 4459 */ 4460 win_T * 4461 win_horz_neighbor(tabpage_T *tp, win_T *wp, int left, long count) 4462 { 4463 frame_T *fr; 4464 frame_T *nfr; 4465 frame_T *foundfr; 4466 4467 foundfr = wp->w_frame; 4468 while (count--) 4469 { 4470 /* 4471 * First go upwards in the tree of frames until we find a left or 4472 * right neighbor. 4473 */ 4474 fr = foundfr; 4475 for (;;) 4476 { 4477 if (fr == tp->tp_topframe) 4478 goto end; 4479 if (left) 4480 nfr = fr->fr_prev; 4481 else 4482 nfr = fr->fr_next; 4483 if (fr->fr_parent->fr_layout == FR_ROW && nfr != NULL) 4484 break; 4485 fr = fr->fr_parent; 4486 } 4487 4488 /* 4489 * Now go downwards to find the leftmost or rightmost frame in it. 4490 */ 4491 for (;;) 4492 { 4493 if (nfr->fr_layout == FR_LEAF) 4494 { 4495 foundfr = nfr; 4496 break; 4497 } 4498 fr = nfr->fr_child; 4499 if (nfr->fr_layout == FR_COL) 4500 { 4501 /* Find the frame at the cursor row. */ 4502 while (fr->fr_next != NULL 4503 && frame2win(fr)->w_winrow + fr->fr_height 4504 <= wp->w_winrow + wp->w_wrow) 4505 fr = fr->fr_next; 4506 } 4507 if (nfr->fr_layout == FR_ROW && left) 4508 while (fr->fr_next != NULL) 4509 fr = fr->fr_next; 4510 nfr = fr; 4511 } 4512 } 4513 end: 4514 return foundfr != NULL ? foundfr->fr_win : NULL; 4515 } 4516 4517 /* 4518 * Move to left or right window. 4519 */ 4520 static void 4521 win_goto_hor( 4522 int left, // TRUE to go to left win 4523 long count) 4524 { 4525 win_T *win; 4526 4527 win = win_horz_neighbor(curtab, curwin, left, count); 4528 if (win != NULL) 4529 win_goto(win); 4530 } 4531 4532 /* 4533 * Make window "wp" the current window. 4534 */ 4535 void 4536 win_enter(win_T *wp, int undo_sync) 4537 { 4538 win_enter_ext(wp, undo_sync, FALSE, FALSE, TRUE, TRUE); 4539 } 4540 4541 /* 4542 * Make window wp the current window. 4543 * Can be called with "curwin_invalid" TRUE, which means that curwin has just 4544 * been closed and isn't valid. 4545 */ 4546 static void 4547 win_enter_ext( 4548 win_T *wp, 4549 int undo_sync, 4550 int curwin_invalid, 4551 int trigger_new_autocmds, 4552 int trigger_enter_autocmds, 4553 int trigger_leave_autocmds) 4554 { 4555 int other_buffer = FALSE; 4556 4557 if (wp == curwin && !curwin_invalid) /* nothing to do */ 4558 return; 4559 4560 #ifdef FEAT_JOB_CHANNEL 4561 if (!curwin_invalid) 4562 leaving_window(curwin); 4563 #endif 4564 4565 if (!curwin_invalid && trigger_leave_autocmds) 4566 { 4567 /* 4568 * Be careful: If autocommands delete the window, return now. 4569 */ 4570 if (wp->w_buffer != curbuf) 4571 { 4572 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4573 other_buffer = TRUE; 4574 if (!win_valid(wp)) 4575 return; 4576 } 4577 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4578 if (!win_valid(wp)) 4579 return; 4580 #ifdef FEAT_EVAL 4581 /* autocmds may abort script processing */ 4582 if (aborting()) 4583 return; 4584 #endif 4585 } 4586 4587 /* sync undo before leaving the current buffer */ 4588 if (undo_sync && curbuf != wp->w_buffer) 4589 u_sync(FALSE); 4590 4591 /* Might need to scroll the old window before switching, e.g., when the 4592 * cursor was moved. */ 4593 update_topline(); 4594 4595 /* may have to copy the buffer options when 'cpo' contains 'S' */ 4596 if (wp->w_buffer != curbuf) 4597 buf_copy_options(wp->w_buffer, BCO_ENTER | BCO_NOHELP); 4598 if (!curwin_invalid) 4599 { 4600 prevwin = curwin; /* remember for CTRL-W p */ 4601 curwin->w_redr_status = TRUE; 4602 } 4603 curwin = wp; 4604 curbuf = wp->w_buffer; 4605 check_cursor(); 4606 if (!virtual_active()) 4607 curwin->w_cursor.coladd = 0; 4608 changed_line_abv_curs(); /* assume cursor position needs updating */ 4609 4610 if (curwin->w_localdir != NULL || curtab->tp_localdir != NULL) 4611 { 4612 char_u *dirname; 4613 4614 // Window or tab has a local directory: Save current directory as 4615 // global directory (unless that was done already) and change to the 4616 // local directory. 4617 if (globaldir == NULL) 4618 { 4619 char_u cwd[MAXPATHL]; 4620 4621 if (mch_dirname(cwd, MAXPATHL) == OK) 4622 globaldir = vim_strsave(cwd); 4623 } 4624 if (curwin->w_localdir != NULL) 4625 dirname = curwin->w_localdir; 4626 else 4627 dirname = curtab->tp_localdir; 4628 4629 if (mch_chdir((char *)dirname) == 0) 4630 shorten_fnames(TRUE); 4631 } 4632 else if (globaldir != NULL) 4633 { 4634 /* Window doesn't have a local directory and we are not in the global 4635 * directory: Change to the global directory. */ 4636 vim_ignored = mch_chdir((char *)globaldir); 4637 VIM_CLEAR(globaldir); 4638 shorten_fnames(TRUE); 4639 } 4640 4641 #ifdef FEAT_JOB_CHANNEL 4642 entering_window(curwin); 4643 #endif 4644 if (trigger_new_autocmds) 4645 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 4646 if (trigger_enter_autocmds) 4647 { 4648 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 4649 if (other_buffer) 4650 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4651 } 4652 4653 #ifdef FEAT_TITLE 4654 maketitle(); 4655 #endif 4656 curwin->w_redr_status = TRUE; 4657 redraw_tabline = TRUE; 4658 if (restart_edit) 4659 redraw_later(VALID); /* causes status line redraw */ 4660 4661 /* set window height to desired minimal value */ 4662 if (curwin->w_height < p_wh && !curwin->w_p_wfh 4663 #ifdef FEAT_TEXT_PROP 4664 && !popup_is_popup(curwin) 4665 #endif 4666 ) 4667 win_setheight((int)p_wh); 4668 else if (curwin->w_height == 0) 4669 win_setheight(1); 4670 4671 /* set window width to desired minimal value */ 4672 if (curwin->w_width < p_wiw && !curwin->w_p_wfw) 4673 win_setwidth((int)p_wiw); 4674 4675 setmouse(); // in case jumped to/from help buffer 4676 4677 /* Change directories when the 'acd' option is set. */ 4678 DO_AUTOCHDIR; 4679 } 4680 4681 4682 /* 4683 * Jump to the first open window that contains buffer "buf", if one exists. 4684 * Returns a pointer to the window found, otherwise NULL. 4685 */ 4686 win_T * 4687 buf_jump_open_win(buf_T *buf) 4688 { 4689 win_T *wp = NULL; 4690 4691 if (curwin->w_buffer == buf) 4692 wp = curwin; 4693 else 4694 FOR_ALL_WINDOWS(wp) 4695 if (wp->w_buffer == buf) 4696 break; 4697 if (wp != NULL) 4698 win_enter(wp, FALSE); 4699 return wp; 4700 } 4701 4702 /* 4703 * Jump to the first open window in any tab page that contains buffer "buf", 4704 * if one exists. 4705 * Returns a pointer to the window found, otherwise NULL. 4706 */ 4707 win_T * 4708 buf_jump_open_tab(buf_T *buf) 4709 { 4710 win_T *wp = buf_jump_open_win(buf); 4711 tabpage_T *tp; 4712 4713 if (wp != NULL) 4714 return wp; 4715 4716 FOR_ALL_TABPAGES(tp) 4717 if (tp != curtab) 4718 { 4719 for (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next) 4720 if (wp->w_buffer == buf) 4721 break; 4722 if (wp != NULL) 4723 { 4724 goto_tabpage_win(tp, wp); 4725 if (curwin != wp) 4726 wp = NULL; /* something went wrong */ 4727 break; 4728 } 4729 } 4730 return wp; 4731 } 4732 4733 static int last_win_id = LOWEST_WIN_ID - 1; 4734 4735 /* 4736 * Allocate a window structure and link it in the window list when "hidden" is 4737 * FALSE. 4738 */ 4739 static win_T * 4740 win_alloc(win_T *after UNUSED, int hidden UNUSED) 4741 { 4742 win_T *new_wp; 4743 4744 /* 4745 * allocate window structure and linesizes arrays 4746 */ 4747 new_wp = ALLOC_CLEAR_ONE(win_T); 4748 if (new_wp == NULL) 4749 return NULL; 4750 4751 if (win_alloc_lines(new_wp) == FAIL) 4752 { 4753 vim_free(new_wp); 4754 return NULL; 4755 } 4756 4757 new_wp->w_id = ++last_win_id; 4758 4759 #ifdef FEAT_EVAL 4760 /* init w: variables */ 4761 new_wp->w_vars = dict_alloc(); 4762 if (new_wp->w_vars == NULL) 4763 { 4764 win_free_lsize(new_wp); 4765 vim_free(new_wp); 4766 return NULL; 4767 } 4768 init_var_dict(new_wp->w_vars, &new_wp->w_winvar, VAR_SCOPE); 4769 #endif 4770 4771 /* Don't execute autocommands while the window is not properly 4772 * initialized yet. gui_create_scrollbar() may trigger a FocusGained 4773 * event. */ 4774 block_autocmds(); 4775 4776 /* 4777 * link the window in the window list 4778 */ 4779 if (!hidden) 4780 win_append(after, new_wp); 4781 new_wp->w_wincol = 0; 4782 new_wp->w_width = Columns; 4783 4784 /* position the display and the cursor at the top of the file. */ 4785 new_wp->w_topline = 1; 4786 #ifdef FEAT_DIFF 4787 new_wp->w_topfill = 0; 4788 #endif 4789 new_wp->w_botline = 2; 4790 new_wp->w_cursor.lnum = 1; 4791 new_wp->w_scbind_pos = 1; 4792 4793 // use global option value for global-local options 4794 new_wp->w_p_so = -1; 4795 new_wp->w_p_siso = -1; 4796 4797 /* We won't calculate w_fraction until resizing the window */ 4798 new_wp->w_fraction = 0; 4799 new_wp->w_prev_fraction_row = -1; 4800 4801 #ifdef FEAT_GUI 4802 if (gui.in_use) 4803 { 4804 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_LEFT], 4805 SBAR_LEFT, new_wp); 4806 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_RIGHT], 4807 SBAR_RIGHT, new_wp); 4808 } 4809 #endif 4810 #ifdef FEAT_FOLDING 4811 foldInitWin(new_wp); 4812 #endif 4813 unblock_autocmds(); 4814 #ifdef FEAT_SEARCH_EXTRA 4815 new_wp->w_match_head = NULL; 4816 new_wp->w_next_match_id = 4; 4817 #endif 4818 return new_wp; 4819 } 4820 4821 /* 4822 * Remove window 'wp' from the window list and free the structure. 4823 */ 4824 static void 4825 win_free( 4826 win_T *wp, 4827 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 4828 { 4829 int i; 4830 buf_T *buf; 4831 wininfo_T *wip; 4832 4833 #ifdef FEAT_FOLDING 4834 clearFolding(wp); 4835 #endif 4836 4837 /* reduce the reference count to the argument list. */ 4838 alist_unlink(wp->w_alist); 4839 4840 /* Don't execute autocommands while the window is halfway being deleted. 4841 * gui_mch_destroy_scrollbar() may trigger a FocusGained event. */ 4842 block_autocmds(); 4843 4844 #ifdef FEAT_LUA 4845 lua_window_free(wp); 4846 #endif 4847 4848 #ifdef FEAT_MZSCHEME 4849 mzscheme_window_free(wp); 4850 #endif 4851 4852 #ifdef FEAT_PERL 4853 perl_win_free(wp); 4854 #endif 4855 4856 #ifdef FEAT_PYTHON 4857 python_window_free(wp); 4858 #endif 4859 4860 #ifdef FEAT_PYTHON3 4861 python3_window_free(wp); 4862 #endif 4863 4864 #ifdef FEAT_TCL 4865 tcl_window_free(wp); 4866 #endif 4867 4868 #ifdef FEAT_RUBY 4869 ruby_window_free(wp); 4870 #endif 4871 4872 clear_winopt(&wp->w_onebuf_opt); 4873 clear_winopt(&wp->w_allbuf_opt); 4874 4875 #ifdef FEAT_EVAL 4876 vars_clear(&wp->w_vars->dv_hashtab); /* free all w: variables */ 4877 hash_init(&wp->w_vars->dv_hashtab); 4878 unref_var_dict(wp->w_vars); 4879 #endif 4880 4881 { 4882 tabpage_T *ttp; 4883 4884 if (prevwin == wp) 4885 prevwin = NULL; 4886 FOR_ALL_TABPAGES(ttp) 4887 if (ttp->tp_prevwin == wp) 4888 ttp->tp_prevwin = NULL; 4889 } 4890 win_free_lsize(wp); 4891 4892 for (i = 0; i < wp->w_tagstacklen; ++i) 4893 { 4894 vim_free(wp->w_tagstack[i].tagname); 4895 vim_free(wp->w_tagstack[i].user_data); 4896 } 4897 vim_free(wp->w_localdir); 4898 4899 /* Remove the window from the b_wininfo lists, it may happen that the 4900 * freed memory is re-used for another window. */ 4901 FOR_ALL_BUFFERS(buf) 4902 for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) 4903 if (wip->wi_win == wp) 4904 wip->wi_win = NULL; 4905 4906 #ifdef FEAT_SEARCH_EXTRA 4907 clear_matches(wp); 4908 #endif 4909 4910 #ifdef FEAT_JUMPLIST 4911 free_jumplist(wp); 4912 #endif 4913 4914 #ifdef FEAT_QUICKFIX 4915 qf_free_all(wp); 4916 #endif 4917 4918 #ifdef FEAT_GUI 4919 if (gui.in_use) 4920 { 4921 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_LEFT]); 4922 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_RIGHT]); 4923 } 4924 #endif /* FEAT_GUI */ 4925 4926 #ifdef FEAT_MENU 4927 remove_winbar(wp); 4928 #endif 4929 #ifdef FEAT_TEXT_PROP 4930 free_callback(&wp->w_close_cb); 4931 free_callback(&wp->w_filter_cb); 4932 for (i = 0; i < 4; ++i) 4933 VIM_CLEAR(wp->w_border_highlight[i]); 4934 vim_free(wp->w_scrollbar_highlight); 4935 vim_free(wp->w_thumb_highlight); 4936 vim_free(wp->w_popup_title); 4937 list_unref(wp->w_popup_mask); 4938 vim_free(wp->w_popup_mask_cells); 4939 #endif 4940 4941 #ifdef FEAT_SYN_HL 4942 vim_free(wp->w_p_cc_cols); 4943 #endif 4944 4945 if (win_valid_any_tab(wp)) 4946 win_remove(wp, tp); 4947 if (autocmd_busy) 4948 { 4949 wp->w_next = au_pending_free_win; 4950 au_pending_free_win = wp; 4951 } 4952 else 4953 vim_free(wp); 4954 4955 unblock_autocmds(); 4956 } 4957 4958 /* 4959 * Return TRUE if "wp" is not in the list of windows: the autocmd window or a 4960 * popup window. 4961 */ 4962 static int 4963 win_unlisted(win_T *wp) 4964 { 4965 return wp == aucmd_win || WIN_IS_POPUP(wp); 4966 } 4967 4968 #if defined(FEAT_TEXT_PROP) || defined(PROTO) 4969 /* 4970 * Free a popup window. This does not take the window out of the window list 4971 * and assumes there is only one toplevel frame, no split. 4972 */ 4973 void 4974 win_free_popup(win_T *win) 4975 { 4976 if (bt_popup(win->w_buffer)) 4977 win_close_buffer(win, DOBUF_WIPE_REUSE, FALSE); 4978 else 4979 close_buffer(win, win->w_buffer, 0, FALSE); 4980 # if defined(FEAT_TIMERS) 4981 if (win->w_popup_timer != NULL) 4982 stop_timer(win->w_popup_timer); 4983 # endif 4984 vim_free(win->w_frame); 4985 win_free(win, NULL); 4986 } 4987 #endif 4988 4989 /* 4990 * Append window "wp" in the window list after window "after". 4991 */ 4992 static void 4993 win_append(win_T *after, win_T *wp) 4994 { 4995 win_T *before; 4996 4997 if (after == NULL) /* after NULL is in front of the first */ 4998 before = firstwin; 4999 else 5000 before = after->w_next; 5001 5002 wp->w_next = before; 5003 wp->w_prev = after; 5004 if (after == NULL) 5005 firstwin = wp; 5006 else 5007 after->w_next = wp; 5008 if (before == NULL) 5009 lastwin = wp; 5010 else 5011 before->w_prev = wp; 5012 } 5013 5014 /* 5015 * Remove a window from the window list. 5016 */ 5017 void 5018 win_remove( 5019 win_T *wp, 5020 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 5021 { 5022 if (wp->w_prev != NULL) 5023 wp->w_prev->w_next = wp->w_next; 5024 else if (tp == NULL) 5025 firstwin = curtab->tp_firstwin = wp->w_next; 5026 else 5027 tp->tp_firstwin = wp->w_next; 5028 5029 if (wp->w_next != NULL) 5030 wp->w_next->w_prev = wp->w_prev; 5031 else if (tp == NULL) 5032 lastwin = curtab->tp_lastwin = wp->w_prev; 5033 else 5034 tp->tp_lastwin = wp->w_prev; 5035 } 5036 5037 /* 5038 * Append frame "frp" in a frame list after frame "after". 5039 */ 5040 static void 5041 frame_append(frame_T *after, frame_T *frp) 5042 { 5043 frp->fr_next = after->fr_next; 5044 after->fr_next = frp; 5045 if (frp->fr_next != NULL) 5046 frp->fr_next->fr_prev = frp; 5047 frp->fr_prev = after; 5048 } 5049 5050 /* 5051 * Insert frame "frp" in a frame list before frame "before". 5052 */ 5053 static void 5054 frame_insert(frame_T *before, frame_T *frp) 5055 { 5056 frp->fr_next = before; 5057 frp->fr_prev = before->fr_prev; 5058 before->fr_prev = frp; 5059 if (frp->fr_prev != NULL) 5060 frp->fr_prev->fr_next = frp; 5061 else 5062 frp->fr_parent->fr_child = frp; 5063 } 5064 5065 /* 5066 * Remove a frame from a frame list. 5067 */ 5068 static void 5069 frame_remove(frame_T *frp) 5070 { 5071 if (frp->fr_prev != NULL) 5072 frp->fr_prev->fr_next = frp->fr_next; 5073 else 5074 { 5075 frp->fr_parent->fr_child = frp->fr_next; 5076 /* special case: topframe->fr_child == frp */ 5077 if (topframe->fr_child == frp) 5078 topframe->fr_child = frp->fr_next; 5079 } 5080 if (frp->fr_next != NULL) 5081 frp->fr_next->fr_prev = frp->fr_prev; 5082 } 5083 5084 /* 5085 * Allocate w_lines[] for window "wp". 5086 * Return FAIL for failure, OK for success. 5087 */ 5088 int 5089 win_alloc_lines(win_T *wp) 5090 { 5091 wp->w_lines_valid = 0; 5092 wp->w_lines = ALLOC_CLEAR_MULT(wline_T, Rows ); 5093 if (wp->w_lines == NULL) 5094 return FAIL; 5095 return OK; 5096 } 5097 5098 /* 5099 * free lsize arrays for a window 5100 */ 5101 void 5102 win_free_lsize(win_T *wp) 5103 { 5104 /* TODO: why would wp be NULL here? */ 5105 if (wp != NULL) 5106 VIM_CLEAR(wp->w_lines); 5107 } 5108 5109 /* 5110 * Called from win_new_shellsize() after Rows changed. 5111 * This only does the current tab page, others must be done when made active. 5112 */ 5113 void 5114 shell_new_rows(void) 5115 { 5116 int h = (int)ROWS_AVAIL; 5117 5118 if (firstwin == NULL) /* not initialized yet */ 5119 return; 5120 if (h < frame_minheight(topframe, NULL)) 5121 h = frame_minheight(topframe, NULL); 5122 5123 /* First try setting the heights of windows with 'winfixheight'. If 5124 * that doesn't result in the right height, forget about that option. */ 5125 frame_new_height(topframe, h, FALSE, TRUE); 5126 if (!frame_check_height(topframe, h)) 5127 frame_new_height(topframe, h, FALSE, FALSE); 5128 5129 (void)win_comp_pos(); /* recompute w_winrow and w_wincol */ 5130 compute_cmdrow(); 5131 curtab->tp_ch_used = p_ch; 5132 5133 #if 0 5134 /* Disabled: don't want making the screen smaller make a window larger. */ 5135 if (p_ea) 5136 win_equal(curwin, FALSE, 'v'); 5137 #endif 5138 } 5139 5140 /* 5141 * Called from win_new_shellsize() after Columns changed. 5142 */ 5143 void 5144 shell_new_columns(void) 5145 { 5146 if (firstwin == NULL) /* not initialized yet */ 5147 return; 5148 5149 /* First try setting the widths of windows with 'winfixwidth'. If that 5150 * doesn't result in the right width, forget about that option. */ 5151 frame_new_width(topframe, (int)Columns, FALSE, TRUE); 5152 if (!frame_check_width(topframe, Columns)) 5153 frame_new_width(topframe, (int)Columns, FALSE, FALSE); 5154 5155 (void)win_comp_pos(); /* recompute w_winrow and w_wincol */ 5156 #if 0 5157 /* Disabled: don't want making the screen smaller make a window larger. */ 5158 if (p_ea) 5159 win_equal(curwin, FALSE, 'h'); 5160 #endif 5161 } 5162 5163 #if defined(FEAT_CMDWIN) || defined(PROTO) 5164 /* 5165 * Save the size of all windows in "gap". 5166 */ 5167 void 5168 win_size_save(garray_T *gap) 5169 5170 { 5171 win_T *wp; 5172 5173 ga_init2(gap, (int)sizeof(int), 1); 5174 if (ga_grow(gap, win_count() * 2) == OK) 5175 FOR_ALL_WINDOWS(wp) 5176 { 5177 ((int *)gap->ga_data)[gap->ga_len++] = 5178 wp->w_width + wp->w_vsep_width; 5179 ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height; 5180 } 5181 } 5182 5183 /* 5184 * Restore window sizes, but only if the number of windows is still the same. 5185 * Does not free the growarray. 5186 */ 5187 void 5188 win_size_restore(garray_T *gap) 5189 { 5190 win_T *wp; 5191 int i, j; 5192 5193 if (win_count() * 2 == gap->ga_len) 5194 { 5195 /* The order matters, because frames contain other frames, but it's 5196 * difficult to get right. The easy way out is to do it twice. */ 5197 for (j = 0; j < 2; ++j) 5198 { 5199 i = 0; 5200 FOR_ALL_WINDOWS(wp) 5201 { 5202 frame_setwidth(wp->w_frame, ((int *)gap->ga_data)[i++]); 5203 win_setheight_win(((int *)gap->ga_data)[i++], wp); 5204 } 5205 } 5206 /* recompute the window positions */ 5207 (void)win_comp_pos(); 5208 } 5209 } 5210 #endif /* FEAT_CMDWIN */ 5211 5212 /* 5213 * Update the position for all windows, using the width and height of the 5214 * frames. 5215 * Returns the row just after the last window. 5216 */ 5217 int 5218 win_comp_pos(void) 5219 { 5220 int row = tabline_height(); 5221 int col = 0; 5222 5223 frame_comp_pos(topframe, &row, &col); 5224 return row; 5225 } 5226 5227 /* 5228 * Update the position of the windows in frame "topfrp", using the width and 5229 * height of the frames. 5230 * "*row" and "*col" are the top-left position of the frame. They are updated 5231 * to the bottom-right position plus one. 5232 */ 5233 static void 5234 frame_comp_pos(frame_T *topfrp, int *row, int *col) 5235 { 5236 win_T *wp; 5237 frame_T *frp; 5238 int startcol; 5239 int startrow; 5240 int h; 5241 5242 wp = topfrp->fr_win; 5243 if (wp != NULL) 5244 { 5245 if (wp->w_winrow != *row || wp->w_wincol != *col) 5246 { 5247 /* position changed, redraw */ 5248 wp->w_winrow = *row; 5249 wp->w_wincol = *col; 5250 redraw_win_later(wp, NOT_VALID); 5251 wp->w_redr_status = TRUE; 5252 } 5253 /* WinBar will not show if the window height is zero */ 5254 h = VISIBLE_HEIGHT(wp) + wp->w_status_height; 5255 *row += h > topfrp->fr_height ? topfrp->fr_height : h; 5256 *col += wp->w_width + wp->w_vsep_width; 5257 } 5258 else 5259 { 5260 startrow = *row; 5261 startcol = *col; 5262 FOR_ALL_FRAMES(frp, topfrp->fr_child) 5263 { 5264 if (topfrp->fr_layout == FR_ROW) 5265 *row = startrow; /* all frames are at the same row */ 5266 else 5267 *col = startcol; /* all frames are at the same col */ 5268 frame_comp_pos(frp, row, col); 5269 } 5270 } 5271 } 5272 5273 /* 5274 * Set current window height and take care of repositioning other windows to 5275 * fit around it. 5276 */ 5277 void 5278 win_setheight(int height) 5279 { 5280 win_setheight_win(height, curwin); 5281 } 5282 5283 /* 5284 * Set the window height of window "win" and take care of repositioning other 5285 * windows to fit around it. 5286 */ 5287 void 5288 win_setheight_win(int height, win_T *win) 5289 { 5290 int row; 5291 5292 if (win == curwin) 5293 { 5294 /* Always keep current window at least one line high, even when 5295 * 'winminheight' is zero. */ 5296 if (height < p_wmh) 5297 height = p_wmh; 5298 if (height == 0) 5299 height = 1; 5300 height += WINBAR_HEIGHT(curwin); 5301 } 5302 5303 frame_setheight(win->w_frame, height + win->w_status_height); 5304 5305 /* recompute the window positions */ 5306 row = win_comp_pos(); 5307 5308 /* 5309 * If there is extra space created between the last window and the command 5310 * line, clear it. 5311 */ 5312 if (full_screen && msg_scrolled == 0 && row < cmdline_row) 5313 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5314 cmdline_row = row; 5315 msg_row = row; 5316 msg_col = 0; 5317 5318 redraw_all_later(NOT_VALID); 5319 } 5320 5321 /* 5322 * Set the height of a frame to "height" and take care that all frames and 5323 * windows inside it are resized. Also resize frames on the left and right if 5324 * the are in the same FR_ROW frame. 5325 * 5326 * Strategy: 5327 * If the frame is part of a FR_COL frame, try fitting the frame in that 5328 * frame. If that doesn't work (the FR_COL frame is too small), recursively 5329 * go to containing frames to resize them and make room. 5330 * If the frame is part of a FR_ROW frame, all frames must be resized as well. 5331 * Check for the minimal height of the FR_ROW frame. 5332 * At the top level we can also use change the command line height. 5333 */ 5334 static void 5335 frame_setheight(frame_T *curfrp, int height) 5336 { 5337 int room; /* total number of lines available */ 5338 int take; /* number of lines taken from other windows */ 5339 int room_cmdline; /* lines available from cmdline */ 5340 int run; 5341 frame_T *frp; 5342 int h; 5343 int room_reserved; 5344 5345 /* If the height already is the desired value, nothing to do. */ 5346 if (curfrp->fr_height == height) 5347 return; 5348 5349 if (curfrp->fr_parent == NULL) 5350 { 5351 /* topframe: can only change the command line */ 5352 if (height > ROWS_AVAIL) 5353 height = ROWS_AVAIL; 5354 if (height > 0) 5355 frame_new_height(curfrp, height, FALSE, FALSE); 5356 } 5357 else if (curfrp->fr_parent->fr_layout == FR_ROW) 5358 { 5359 /* Row of frames: Also need to resize frames left and right of this 5360 * one. First check for the minimal height of these. */ 5361 h = frame_minheight(curfrp->fr_parent, NULL); 5362 if (height < h) 5363 height = h; 5364 frame_setheight(curfrp->fr_parent, height); 5365 } 5366 else 5367 { 5368 /* 5369 * Column of frames: try to change only frames in this column. 5370 */ 5371 /* 5372 * Do this twice: 5373 * 1: compute room available, if it's not enough try resizing the 5374 * containing frame. 5375 * 2: compute the room available and adjust the height to it. 5376 * Try not to reduce the height of a window with 'winfixheight' set. 5377 */ 5378 for (run = 1; run <= 2; ++run) 5379 { 5380 room = 0; 5381 room_reserved = 0; 5382 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5383 { 5384 if (frp != curfrp 5385 && frp->fr_win != NULL 5386 && frp->fr_win->w_p_wfh) 5387 room_reserved += frp->fr_height; 5388 room += frp->fr_height; 5389 if (frp != curfrp) 5390 room -= frame_minheight(frp, NULL); 5391 } 5392 if (curfrp->fr_width != Columns) 5393 room_cmdline = 0; 5394 else 5395 { 5396 room_cmdline = Rows - p_ch - (lastwin->w_winrow 5397 + VISIBLE_HEIGHT(lastwin) 5398 + lastwin->w_status_height); 5399 if (room_cmdline < 0) 5400 room_cmdline = 0; 5401 } 5402 5403 if (height <= room + room_cmdline) 5404 break; 5405 if (run == 2 || curfrp->fr_width == Columns) 5406 { 5407 if (height > room + room_cmdline) 5408 height = room + room_cmdline; 5409 break; 5410 } 5411 frame_setheight(curfrp->fr_parent, height 5412 + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1); 5413 } 5414 5415 /* 5416 * Compute the number of lines we will take from others frames (can be 5417 * negative!). 5418 */ 5419 take = height - curfrp->fr_height; 5420 5421 /* If there is not enough room, also reduce the height of a window 5422 * with 'winfixheight' set. */ 5423 if (height > room + room_cmdline - room_reserved) 5424 room_reserved = room + room_cmdline - height; 5425 /* If there is only a 'winfixheight' window and making the 5426 * window smaller, need to make the other window taller. */ 5427 if (take < 0 && room - curfrp->fr_height < room_reserved) 5428 room_reserved = 0; 5429 5430 if (take > 0 && room_cmdline > 0) 5431 { 5432 /* use lines from cmdline first */ 5433 if (take < room_cmdline) 5434 room_cmdline = take; 5435 take -= room_cmdline; 5436 topframe->fr_height += room_cmdline; 5437 } 5438 5439 /* 5440 * set the current frame to the new height 5441 */ 5442 frame_new_height(curfrp, height, FALSE, FALSE); 5443 5444 /* 5445 * First take lines from the frames after the current frame. If 5446 * that is not enough, takes lines from frames above the current 5447 * frame. 5448 */ 5449 for (run = 0; run < 2; ++run) 5450 { 5451 if (run == 0) 5452 frp = curfrp->fr_next; /* 1st run: start with next window */ 5453 else 5454 frp = curfrp->fr_prev; /* 2nd run: start with prev window */ 5455 while (frp != NULL && take != 0) 5456 { 5457 h = frame_minheight(frp, NULL); 5458 if (room_reserved > 0 5459 && frp->fr_win != NULL 5460 && frp->fr_win->w_p_wfh) 5461 { 5462 if (room_reserved >= frp->fr_height) 5463 room_reserved -= frp->fr_height; 5464 else 5465 { 5466 if (frp->fr_height - room_reserved > take) 5467 room_reserved = frp->fr_height - take; 5468 take -= frp->fr_height - room_reserved; 5469 frame_new_height(frp, room_reserved, FALSE, FALSE); 5470 room_reserved = 0; 5471 } 5472 } 5473 else 5474 { 5475 if (frp->fr_height - take < h) 5476 { 5477 take -= frp->fr_height - h; 5478 frame_new_height(frp, h, FALSE, FALSE); 5479 } 5480 else 5481 { 5482 frame_new_height(frp, frp->fr_height - take, 5483 FALSE, FALSE); 5484 take = 0; 5485 } 5486 } 5487 if (run == 0) 5488 frp = frp->fr_next; 5489 else 5490 frp = frp->fr_prev; 5491 } 5492 } 5493 } 5494 } 5495 5496 /* 5497 * Set current window width and take care of repositioning other windows to 5498 * fit around it. 5499 */ 5500 void 5501 win_setwidth(int width) 5502 { 5503 win_setwidth_win(width, curwin); 5504 } 5505 5506 void 5507 win_setwidth_win(int width, win_T *wp) 5508 { 5509 /* Always keep current window at least one column wide, even when 5510 * 'winminwidth' is zero. */ 5511 if (wp == curwin) 5512 { 5513 if (width < p_wmw) 5514 width = p_wmw; 5515 if (width == 0) 5516 width = 1; 5517 } 5518 5519 frame_setwidth(wp->w_frame, width + wp->w_vsep_width); 5520 5521 /* recompute the window positions */ 5522 (void)win_comp_pos(); 5523 5524 redraw_all_later(NOT_VALID); 5525 } 5526 5527 /* 5528 * Set the width of a frame to "width" and take care that all frames and 5529 * windows inside it are resized. Also resize frames above and below if the 5530 * are in the same FR_ROW frame. 5531 * 5532 * Strategy is similar to frame_setheight(). 5533 */ 5534 static void 5535 frame_setwidth(frame_T *curfrp, int width) 5536 { 5537 int room; /* total number of lines available */ 5538 int take; /* number of lines taken from other windows */ 5539 int run; 5540 frame_T *frp; 5541 int w; 5542 int room_reserved; 5543 5544 /* If the width already is the desired value, nothing to do. */ 5545 if (curfrp->fr_width == width) 5546 return; 5547 5548 if (curfrp->fr_parent == NULL) 5549 /* topframe: can't change width */ 5550 return; 5551 5552 if (curfrp->fr_parent->fr_layout == FR_COL) 5553 { 5554 /* Column of frames: Also need to resize frames above and below of 5555 * this one. First check for the minimal width of these. */ 5556 w = frame_minwidth(curfrp->fr_parent, NULL); 5557 if (width < w) 5558 width = w; 5559 frame_setwidth(curfrp->fr_parent, width); 5560 } 5561 else 5562 { 5563 /* 5564 * Row of frames: try to change only frames in this row. 5565 * 5566 * Do this twice: 5567 * 1: compute room available, if it's not enough try resizing the 5568 * containing frame. 5569 * 2: compute the room available and adjust the width to it. 5570 */ 5571 for (run = 1; run <= 2; ++run) 5572 { 5573 room = 0; 5574 room_reserved = 0; 5575 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5576 { 5577 if (frp != curfrp 5578 && frp->fr_win != NULL 5579 && frp->fr_win->w_p_wfw) 5580 room_reserved += frp->fr_width; 5581 room += frp->fr_width; 5582 if (frp != curfrp) 5583 room -= frame_minwidth(frp, NULL); 5584 } 5585 5586 if (width <= room) 5587 break; 5588 if (run == 2 || curfrp->fr_height >= ROWS_AVAIL) 5589 { 5590 if (width > room) 5591 width = room; 5592 break; 5593 } 5594 frame_setwidth(curfrp->fr_parent, width 5595 + frame_minwidth(curfrp->fr_parent, NOWIN) - (int)p_wmw - 1); 5596 } 5597 5598 /* 5599 * Compute the number of lines we will take from others frames (can be 5600 * negative!). 5601 */ 5602 take = width - curfrp->fr_width; 5603 5604 /* If there is not enough room, also reduce the width of a window 5605 * with 'winfixwidth' set. */ 5606 if (width > room - room_reserved) 5607 room_reserved = room - width; 5608 /* If there is only a 'winfixwidth' window and making the 5609 * window smaller, need to make the other window narrower. */ 5610 if (take < 0 && room - curfrp->fr_width < room_reserved) 5611 room_reserved = 0; 5612 5613 /* 5614 * set the current frame to the new width 5615 */ 5616 frame_new_width(curfrp, width, FALSE, FALSE); 5617 5618 /* 5619 * First take lines from the frames right of the current frame. If 5620 * that is not enough, takes lines from frames left of the current 5621 * frame. 5622 */ 5623 for (run = 0; run < 2; ++run) 5624 { 5625 if (run == 0) 5626 frp = curfrp->fr_next; /* 1st run: start with next window */ 5627 else 5628 frp = curfrp->fr_prev; /* 2nd run: start with prev window */ 5629 while (frp != NULL && take != 0) 5630 { 5631 w = frame_minwidth(frp, NULL); 5632 if (room_reserved > 0 5633 && frp->fr_win != NULL 5634 && frp->fr_win->w_p_wfw) 5635 { 5636 if (room_reserved >= frp->fr_width) 5637 room_reserved -= frp->fr_width; 5638 else 5639 { 5640 if (frp->fr_width - room_reserved > take) 5641 room_reserved = frp->fr_width - take; 5642 take -= frp->fr_width - room_reserved; 5643 frame_new_width(frp, room_reserved, FALSE, FALSE); 5644 room_reserved = 0; 5645 } 5646 } 5647 else 5648 { 5649 if (frp->fr_width - take < w) 5650 { 5651 take -= frp->fr_width - w; 5652 frame_new_width(frp, w, FALSE, FALSE); 5653 } 5654 else 5655 { 5656 frame_new_width(frp, frp->fr_width - take, 5657 FALSE, FALSE); 5658 take = 0; 5659 } 5660 } 5661 if (run == 0) 5662 frp = frp->fr_next; 5663 else 5664 frp = frp->fr_prev; 5665 } 5666 } 5667 } 5668 } 5669 5670 /* 5671 * Check 'winminheight' for a valid value and reduce it if needed. 5672 */ 5673 void 5674 win_setminheight(void) 5675 { 5676 int room; 5677 int needed; 5678 int first = TRUE; 5679 5680 // loop until there is a 'winminheight' that is possible 5681 while (p_wmh > 0) 5682 { 5683 room = Rows - p_ch; 5684 needed = frame_minheight(topframe, NULL); 5685 if (room >= needed) 5686 break; 5687 --p_wmh; 5688 if (first) 5689 { 5690 emsg(_(e_noroom)); 5691 first = FALSE; 5692 } 5693 } 5694 } 5695 5696 /* 5697 * Check 'winminwidth' for a valid value and reduce it if needed. 5698 */ 5699 void 5700 win_setminwidth(void) 5701 { 5702 int room; 5703 int needed; 5704 int first = TRUE; 5705 5706 // loop until there is a 'winminheight' that is possible 5707 while (p_wmw > 0) 5708 { 5709 room = Columns; 5710 needed = frame_minwidth(topframe, NULL); 5711 if (room >= needed) 5712 break; 5713 --p_wmw; 5714 if (first) 5715 { 5716 emsg(_(e_noroom)); 5717 first = FALSE; 5718 } 5719 } 5720 } 5721 5722 #if defined(FEAT_MOUSE) || defined(PROTO) 5723 5724 /* 5725 * Status line of dragwin is dragged "offset" lines down (negative is up). 5726 */ 5727 void 5728 win_drag_status_line(win_T *dragwin, int offset) 5729 { 5730 frame_T *curfr; 5731 frame_T *fr; 5732 int room; 5733 int row; 5734 int up; /* if TRUE, drag status line up, otherwise down */ 5735 int n; 5736 5737 fr = dragwin->w_frame; 5738 curfr = fr; 5739 if (fr != topframe) /* more than one window */ 5740 { 5741 fr = fr->fr_parent; 5742 /* When the parent frame is not a column of frames, its parent should 5743 * be. */ 5744 if (fr->fr_layout != FR_COL) 5745 { 5746 curfr = fr; 5747 if (fr != topframe) /* only a row of windows, may drag statusline */ 5748 fr = fr->fr_parent; 5749 } 5750 } 5751 5752 /* If this is the last frame in a column, may want to resize the parent 5753 * frame instead (go two up to skip a row of frames). */ 5754 while (curfr != topframe && curfr->fr_next == NULL) 5755 { 5756 if (fr != topframe) 5757 fr = fr->fr_parent; 5758 curfr = fr; 5759 if (fr != topframe) 5760 fr = fr->fr_parent; 5761 } 5762 5763 if (offset < 0) /* drag up */ 5764 { 5765 up = TRUE; 5766 offset = -offset; 5767 /* sum up the room of the current frame and above it */ 5768 if (fr == curfr) 5769 { 5770 /* only one window */ 5771 room = fr->fr_height - frame_minheight(fr, NULL); 5772 } 5773 else 5774 { 5775 room = 0; 5776 for (fr = fr->fr_child; ; fr = fr->fr_next) 5777 { 5778 room += fr->fr_height - frame_minheight(fr, NULL); 5779 if (fr == curfr) 5780 break; 5781 } 5782 } 5783 fr = curfr->fr_next; /* put fr at frame that grows */ 5784 } 5785 else /* drag down */ 5786 { 5787 up = FALSE; 5788 /* 5789 * Only dragging the last status line can reduce p_ch. 5790 */ 5791 room = Rows - cmdline_row; 5792 if (curfr->fr_next == NULL) 5793 room -= 1; 5794 else 5795 room -= p_ch; 5796 if (room < 0) 5797 room = 0; 5798 /* sum up the room of frames below of the current one */ 5799 FOR_ALL_FRAMES(fr, curfr->fr_next) 5800 room += fr->fr_height - frame_minheight(fr, NULL); 5801 fr = curfr; /* put fr at window that grows */ 5802 } 5803 5804 if (room < offset) /* Not enough room */ 5805 offset = room; /* Move as far as we can */ 5806 if (offset <= 0) 5807 return; 5808 5809 /* 5810 * Grow frame fr by "offset" lines. 5811 * Doesn't happen when dragging the last status line up. 5812 */ 5813 if (fr != NULL) 5814 frame_new_height(fr, fr->fr_height + offset, up, FALSE); 5815 5816 if (up) 5817 fr = curfr; /* current frame gets smaller */ 5818 else 5819 fr = curfr->fr_next; /* next frame gets smaller */ 5820 5821 /* 5822 * Now make the other frames smaller. 5823 */ 5824 while (fr != NULL && offset > 0) 5825 { 5826 n = frame_minheight(fr, NULL); 5827 if (fr->fr_height - offset <= n) 5828 { 5829 offset -= fr->fr_height - n; 5830 frame_new_height(fr, n, !up, FALSE); 5831 } 5832 else 5833 { 5834 frame_new_height(fr, fr->fr_height - offset, !up, FALSE); 5835 break; 5836 } 5837 if (up) 5838 fr = fr->fr_prev; 5839 else 5840 fr = fr->fr_next; 5841 } 5842 row = win_comp_pos(); 5843 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5844 cmdline_row = row; 5845 p_ch = Rows - cmdline_row; 5846 if (p_ch < 1) 5847 p_ch = 1; 5848 curtab->tp_ch_used = p_ch; 5849 redraw_all_later(SOME_VALID); 5850 showmode(); 5851 } 5852 5853 /* 5854 * Separator line of dragwin is dragged "offset" lines right (negative is left). 5855 */ 5856 void 5857 win_drag_vsep_line(win_T *dragwin, int offset) 5858 { 5859 frame_T *curfr; 5860 frame_T *fr; 5861 int room; 5862 int left; /* if TRUE, drag separator line left, otherwise right */ 5863 int n; 5864 5865 fr = dragwin->w_frame; 5866 if (fr == topframe) /* only one window (cannot happen?) */ 5867 return; 5868 curfr = fr; 5869 fr = fr->fr_parent; 5870 /* When the parent frame is not a row of frames, its parent should be. */ 5871 if (fr->fr_layout != FR_ROW) 5872 { 5873 if (fr == topframe) /* only a column of windows (cannot happen?) */ 5874 return; 5875 curfr = fr; 5876 fr = fr->fr_parent; 5877 } 5878 5879 /* If this is the last frame in a row, may want to resize a parent 5880 * frame instead. */ 5881 while (curfr->fr_next == NULL) 5882 { 5883 if (fr == topframe) 5884 break; 5885 curfr = fr; 5886 fr = fr->fr_parent; 5887 if (fr != topframe) 5888 { 5889 curfr = fr; 5890 fr = fr->fr_parent; 5891 } 5892 } 5893 5894 if (offset < 0) /* drag left */ 5895 { 5896 left = TRUE; 5897 offset = -offset; 5898 /* sum up the room of the current frame and left of it */ 5899 room = 0; 5900 for (fr = fr->fr_child; ; fr = fr->fr_next) 5901 { 5902 room += fr->fr_width - frame_minwidth(fr, NULL); 5903 if (fr == curfr) 5904 break; 5905 } 5906 fr = curfr->fr_next; /* put fr at frame that grows */ 5907 } 5908 else /* drag right */ 5909 { 5910 left = FALSE; 5911 /* sum up the room of frames right of the current one */ 5912 room = 0; 5913 FOR_ALL_FRAMES(fr, curfr->fr_next) 5914 room += fr->fr_width - frame_minwidth(fr, NULL); 5915 fr = curfr; /* put fr at window that grows */ 5916 } 5917 5918 if (room < offset) /* Not enough room */ 5919 offset = room; /* Move as far as we can */ 5920 if (offset <= 0) /* No room at all, quit. */ 5921 return; 5922 if (fr == NULL) 5923 return; /* Safety check, should not happen. */ 5924 5925 /* grow frame fr by offset lines */ 5926 frame_new_width(fr, fr->fr_width + offset, left, FALSE); 5927 5928 /* shrink other frames: current and at the left or at the right */ 5929 if (left) 5930 fr = curfr; /* current frame gets smaller */ 5931 else 5932 fr = curfr->fr_next; /* next frame gets smaller */ 5933 5934 while (fr != NULL && offset > 0) 5935 { 5936 n = frame_minwidth(fr, NULL); 5937 if (fr->fr_width - offset <= n) 5938 { 5939 offset -= fr->fr_width - n; 5940 frame_new_width(fr, n, !left, FALSE); 5941 } 5942 else 5943 { 5944 frame_new_width(fr, fr->fr_width - offset, !left, FALSE); 5945 break; 5946 } 5947 if (left) 5948 fr = fr->fr_prev; 5949 else 5950 fr = fr->fr_next; 5951 } 5952 (void)win_comp_pos(); 5953 redraw_all_later(NOT_VALID); 5954 } 5955 #endif /* FEAT_MOUSE */ 5956 5957 #define FRACTION_MULT 16384L 5958 5959 /* 5960 * Set wp->w_fraction for the current w_wrow and w_height. 5961 * Has no effect when the window is less than two lines. 5962 */ 5963 void 5964 set_fraction(win_T *wp) 5965 { 5966 if (wp->w_height > 1) 5967 // When cursor is in the first line the percentage is computed as if 5968 // it's halfway that line. Thus with two lines it is 25%, with three 5969 // lines 17%, etc. Similarly for the last line: 75%, 83%, etc. 5970 wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT 5971 + FRACTION_MULT / 2) / (long)wp->w_height; 5972 } 5973 5974 /* 5975 * Set the height of a window. 5976 * "height" excludes any window toolbar. 5977 * This takes care of the things inside the window, not what happens to the 5978 * window position, the frame or to other windows. 5979 */ 5980 void 5981 win_new_height(win_T *wp, int height) 5982 { 5983 int prev_height = wp->w_height; 5984 5985 /* Don't want a negative height. Happens when splitting a tiny window. 5986 * Will equalize heights soon to fix it. */ 5987 if (height < 0) 5988 height = 0; 5989 if (wp->w_height == height) 5990 return; /* nothing to do */ 5991 5992 if (wp->w_height > 0) 5993 { 5994 if (wp == curwin) 5995 /* w_wrow needs to be valid. When setting 'laststatus' this may 5996 * call win_new_height() recursively. */ 5997 validate_cursor(); 5998 if (wp->w_height != prev_height) 5999 return; /* Recursive call already changed the size, bail out here 6000 to avoid the following to mess things up. */ 6001 if (wp->w_wrow != wp->w_prev_fraction_row) 6002 set_fraction(wp); 6003 } 6004 6005 wp->w_height = height; 6006 wp->w_skipcol = 0; 6007 6008 /* There is no point in adjusting the scroll position when exiting. Some 6009 * values might be invalid. */ 6010 if (!exiting) 6011 scroll_to_fraction(wp, prev_height); 6012 } 6013 6014 void 6015 scroll_to_fraction(win_T *wp, int prev_height) 6016 { 6017 linenr_T lnum; 6018 int sline, line_size; 6019 int height = wp->w_height; 6020 6021 // Don't change w_topline in any of these cases: 6022 // - window height is 0 6023 // - 'scrollbind' is set and this isn't the current window 6024 // - window height is sufficient to display the whole buffer and first line 6025 // is visible. 6026 if (height > 0 6027 && (!wp->w_p_scb || wp == curwin) 6028 && (height < wp->w_buffer->b_ml.ml_line_count || wp->w_topline > 1)) 6029 { 6030 /* 6031 * Find a value for w_topline that shows the cursor at the same 6032 * relative position in the window as before (more or less). 6033 */ 6034 lnum = wp->w_cursor.lnum; 6035 if (lnum < 1) /* can happen when starting up */ 6036 lnum = 1; 6037 wp->w_wrow = ((long)wp->w_fraction * (long)height - 1L) 6038 / FRACTION_MULT; 6039 line_size = plines_win_col(wp, lnum, (long)(wp->w_cursor.col)) - 1; 6040 sline = wp->w_wrow - line_size; 6041 6042 if (sline >= 0) 6043 { 6044 /* Make sure the whole cursor line is visible, if possible. */ 6045 int rows = plines_win(wp, lnum, FALSE); 6046 6047 if (sline > wp->w_height - rows) 6048 { 6049 sline = wp->w_height - rows; 6050 wp->w_wrow -= rows - line_size; 6051 } 6052 } 6053 6054 if (sline < 0) 6055 { 6056 /* 6057 * Cursor line would go off top of screen if w_wrow was this high. 6058 * Make cursor line the first line in the window. If not enough 6059 * room use w_skipcol; 6060 */ 6061 wp->w_wrow = line_size; 6062 if (wp->w_wrow >= wp->w_height 6063 && (wp->w_width - win_col_off(wp)) > 0) 6064 { 6065 wp->w_skipcol += wp->w_width - win_col_off(wp); 6066 --wp->w_wrow; 6067 while (wp->w_wrow >= wp->w_height) 6068 { 6069 wp->w_skipcol += wp->w_width - win_col_off(wp) 6070 + win_col_off2(wp); 6071 --wp->w_wrow; 6072 } 6073 } 6074 } 6075 else if (sline > 0) 6076 { 6077 while (sline > 0 && lnum > 1) 6078 { 6079 #ifdef FEAT_FOLDING 6080 hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); 6081 if (lnum == 1) 6082 { 6083 /* first line in buffer is folded */ 6084 line_size = 1; 6085 --sline; 6086 break; 6087 } 6088 #endif 6089 --lnum; 6090 #ifdef FEAT_DIFF 6091 if (lnum == wp->w_topline) 6092 line_size = plines_win_nofill(wp, lnum, TRUE) 6093 + wp->w_topfill; 6094 else 6095 #endif 6096 line_size = plines_win(wp, lnum, TRUE); 6097 sline -= line_size; 6098 } 6099 6100 if (sline < 0) 6101 { 6102 /* 6103 * Line we want at top would go off top of screen. Use next 6104 * line instead. 6105 */ 6106 #ifdef FEAT_FOLDING 6107 hasFoldingWin(wp, lnum, NULL, &lnum, TRUE, NULL); 6108 #endif 6109 lnum++; 6110 wp->w_wrow -= line_size + sline; 6111 } 6112 else if (sline > 0) 6113 { 6114 // First line of file reached, use that as topline. 6115 lnum = 1; 6116 wp->w_wrow -= sline; 6117 } 6118 } 6119 set_topline(wp, lnum); 6120 } 6121 6122 if (wp == curwin) 6123 { 6124 if (get_scrolloff_value()) 6125 update_topline(); 6126 curs_columns(FALSE); /* validate w_wrow */ 6127 } 6128 if (prev_height > 0) 6129 wp->w_prev_fraction_row = wp->w_wrow; 6130 6131 win_comp_scroll(wp); 6132 redraw_win_later(wp, SOME_VALID); 6133 wp->w_redr_status = TRUE; 6134 invalidate_botline_win(wp); 6135 } 6136 6137 /* 6138 * Set the width of a window. 6139 */ 6140 void 6141 win_new_width(win_T *wp, int width) 6142 { 6143 wp->w_width = width; 6144 wp->w_lines_valid = 0; 6145 changed_line_abv_curs_win(wp); 6146 invalidate_botline_win(wp); 6147 if (wp == curwin) 6148 { 6149 update_topline(); 6150 curs_columns(TRUE); /* validate w_wrow */ 6151 } 6152 redraw_win_later(wp, NOT_VALID); 6153 wp->w_redr_status = TRUE; 6154 } 6155 6156 void 6157 win_comp_scroll(win_T *wp) 6158 { 6159 wp->w_p_scr = ((unsigned)wp->w_height >> 1); 6160 if (wp->w_p_scr == 0) 6161 wp->w_p_scr = 1; 6162 } 6163 6164 /* 6165 * command_height: called whenever p_ch has been changed 6166 */ 6167 void 6168 command_height(void) 6169 { 6170 int h; 6171 frame_T *frp; 6172 int old_p_ch = curtab->tp_ch_used; 6173 6174 /* Use the value of p_ch that we remembered. This is needed for when the 6175 * GUI starts up, we can't be sure in what order things happen. And when 6176 * p_ch was changed in another tab page. */ 6177 curtab->tp_ch_used = p_ch; 6178 6179 /* Find bottom frame with width of screen. */ 6180 frp = lastwin->w_frame; 6181 while (frp->fr_width != Columns && frp->fr_parent != NULL) 6182 frp = frp->fr_parent; 6183 6184 /* Avoid changing the height of a window with 'winfixheight' set. */ 6185 while (frp->fr_prev != NULL && frp->fr_layout == FR_LEAF 6186 && frp->fr_win->w_p_wfh) 6187 frp = frp->fr_prev; 6188 6189 if (starting != NO_SCREEN) 6190 { 6191 cmdline_row = Rows - p_ch; 6192 6193 if (p_ch > old_p_ch) /* p_ch got bigger */ 6194 { 6195 while (p_ch > old_p_ch) 6196 { 6197 if (frp == NULL) 6198 { 6199 emsg(_(e_noroom)); 6200 p_ch = old_p_ch; 6201 curtab->tp_ch_used = p_ch; 6202 cmdline_row = Rows - p_ch; 6203 break; 6204 } 6205 h = frp->fr_height - frame_minheight(frp, NULL); 6206 if (h > p_ch - old_p_ch) 6207 h = p_ch - old_p_ch; 6208 old_p_ch += h; 6209 frame_add_height(frp, -h); 6210 frp = frp->fr_prev; 6211 } 6212 6213 /* Recompute window positions. */ 6214 (void)win_comp_pos(); 6215 6216 /* clear the lines added to cmdline */ 6217 if (full_screen) 6218 screen_fill((int)(cmdline_row), (int)Rows, 0, 6219 (int)Columns, ' ', ' ', 0); 6220 msg_row = cmdline_row; 6221 redraw_cmdline = TRUE; 6222 return; 6223 } 6224 6225 if (msg_row < cmdline_row) 6226 msg_row = cmdline_row; 6227 redraw_cmdline = TRUE; 6228 } 6229 frame_add_height(frp, (int)(old_p_ch - p_ch)); 6230 6231 /* Recompute window positions. */ 6232 if (frp != lastwin->w_frame) 6233 (void)win_comp_pos(); 6234 } 6235 6236 /* 6237 * Resize frame "frp" to be "n" lines higher (negative for less high). 6238 * Also resize the frames it is contained in. 6239 */ 6240 static void 6241 frame_add_height(frame_T *frp, int n) 6242 { 6243 frame_new_height(frp, frp->fr_height + n, FALSE, FALSE); 6244 for (;;) 6245 { 6246 frp = frp->fr_parent; 6247 if (frp == NULL) 6248 break; 6249 frp->fr_height += n; 6250 } 6251 } 6252 6253 /* 6254 * Add or remove a status line for the bottom window(s), according to the 6255 * value of 'laststatus'. 6256 */ 6257 void 6258 last_status( 6259 int morewin) /* pretend there are two or more windows */ 6260 { 6261 /* Don't make a difference between horizontal or vertical split. */ 6262 last_status_rec(topframe, (p_ls == 2 6263 || (p_ls == 1 && (morewin || !ONE_WINDOW)))); 6264 } 6265 6266 static void 6267 last_status_rec(frame_T *fr, int statusline) 6268 { 6269 frame_T *fp; 6270 win_T *wp; 6271 6272 if (fr->fr_layout == FR_LEAF) 6273 { 6274 wp = fr->fr_win; 6275 if (wp->w_status_height != 0 && !statusline) 6276 { 6277 /* remove status line */ 6278 win_new_height(wp, wp->w_height + 1); 6279 wp->w_status_height = 0; 6280 comp_col(); 6281 } 6282 else if (wp->w_status_height == 0 && statusline) 6283 { 6284 /* Find a frame to take a line from. */ 6285 fp = fr; 6286 while (fp->fr_height <= frame_minheight(fp, NULL)) 6287 { 6288 if (fp == topframe) 6289 { 6290 emsg(_(e_noroom)); 6291 return; 6292 } 6293 /* In a column of frames: go to frame above. If already at 6294 * the top or in a row of frames: go to parent. */ 6295 if (fp->fr_parent->fr_layout == FR_COL && fp->fr_prev != NULL) 6296 fp = fp->fr_prev; 6297 else 6298 fp = fp->fr_parent; 6299 } 6300 wp->w_status_height = 1; 6301 if (fp != fr) 6302 { 6303 frame_new_height(fp, fp->fr_height - 1, FALSE, FALSE); 6304 frame_fix_height(wp); 6305 (void)win_comp_pos(); 6306 } 6307 else 6308 win_new_height(wp, wp->w_height - 1); 6309 comp_col(); 6310 redraw_all_later(SOME_VALID); 6311 } 6312 } 6313 else if (fr->fr_layout == FR_ROW) 6314 { 6315 /* vertically split windows, set status line for each one */ 6316 FOR_ALL_FRAMES(fp, fr->fr_child) 6317 last_status_rec(fp, statusline); 6318 } 6319 else 6320 { 6321 /* horizontally split window, set status line for last one */ 6322 for (fp = fr->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 6323 ; 6324 last_status_rec(fp, statusline); 6325 } 6326 } 6327 6328 /* 6329 * Return the number of lines used by the tab page line. 6330 */ 6331 int 6332 tabline_height(void) 6333 { 6334 #ifdef FEAT_GUI_TABLINE 6335 /* When the GUI has the tabline then this always returns zero. */ 6336 if (gui_use_tabline()) 6337 return 0; 6338 #endif 6339 switch (p_stal) 6340 { 6341 case 0: return 0; 6342 case 1: return (first_tabpage->tp_next == NULL) ? 0 : 1; 6343 } 6344 return 1; 6345 } 6346 6347 /* 6348 * Return the minimal number of rows that is needed on the screen to display 6349 * the current number of windows. 6350 */ 6351 int 6352 min_rows(void) 6353 { 6354 int total; 6355 tabpage_T *tp; 6356 int n; 6357 6358 if (firstwin == NULL) /* not initialized yet */ 6359 return MIN_LINES; 6360 6361 total = 0; 6362 FOR_ALL_TABPAGES(tp) 6363 { 6364 n = frame_minheight(tp->tp_topframe, NULL); 6365 if (total < n) 6366 total = n; 6367 } 6368 total += tabline_height(); 6369 total += 1; /* count the room for the command line */ 6370 return total; 6371 } 6372 6373 /* 6374 * Return TRUE if there is only one window (in the current tab page), not 6375 * counting a help or preview window, unless it is the current window. 6376 * Does not count unlisted windows. 6377 */ 6378 int 6379 only_one_window(void) 6380 { 6381 int count = 0; 6382 win_T *wp; 6383 6384 /* If there is another tab page there always is another window. */ 6385 if (first_tabpage->tp_next != NULL) 6386 return FALSE; 6387 6388 FOR_ALL_WINDOWS(wp) 6389 if (wp->w_buffer != NULL 6390 && (!((bt_help(wp->w_buffer) && !bt_help(curbuf)) 6391 # ifdef FEAT_QUICKFIX 6392 || wp->w_p_pvw 6393 # endif 6394 ) || wp == curwin) && wp != aucmd_win) 6395 ++count; 6396 return (count <= 1); 6397 } 6398 6399 /* 6400 * Correct the cursor line number in other windows. Used after changing the 6401 * current buffer, and before applying autocommands. 6402 * When "do_curwin" is TRUE, also check current window. 6403 */ 6404 void 6405 check_lnums(int do_curwin) 6406 { 6407 win_T *wp; 6408 tabpage_T *tp; 6409 6410 FOR_ALL_TAB_WINDOWS(tp, wp) 6411 if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) 6412 { 6413 // save the original cursor position and topline 6414 wp->w_save_cursor.w_cursor_save = wp->w_cursor; 6415 wp->w_save_cursor.w_topline_save = wp->w_topline; 6416 6417 if (wp->w_cursor.lnum > curbuf->b_ml.ml_line_count) 6418 wp->w_cursor.lnum = curbuf->b_ml.ml_line_count; 6419 if (wp->w_topline > curbuf->b_ml.ml_line_count) 6420 wp->w_topline = curbuf->b_ml.ml_line_count; 6421 6422 // save the corrected cursor position and topline 6423 wp->w_save_cursor.w_cursor_corr = wp->w_cursor; 6424 wp->w_save_cursor.w_topline_corr = wp->w_topline; 6425 } 6426 } 6427 6428 /* 6429 * Reset cursor and topline to its stored values from check_lnums(). 6430 * check_lnums() must have been called first! 6431 */ 6432 void 6433 reset_lnums() 6434 { 6435 win_T *wp; 6436 tabpage_T *tp; 6437 6438 FOR_ALL_TAB_WINDOWS(tp, wp) 6439 if (wp->w_buffer == curbuf) 6440 { 6441 // Restore the value if the autocommand didn't change it. 6442 if (EQUAL_POS(wp->w_save_cursor.w_cursor_corr, wp->w_cursor)) 6443 wp->w_cursor = wp->w_save_cursor.w_cursor_save; 6444 if (wp->w_save_cursor.w_topline_corr == wp->w_topline) 6445 wp->w_topline = wp->w_save_cursor.w_topline_save; 6446 } 6447 } 6448 6449 /* 6450 * A snapshot of the window sizes, to restore them after closing the help 6451 * window. 6452 * Only these fields are used: 6453 * fr_layout 6454 * fr_width 6455 * fr_height 6456 * fr_next 6457 * fr_child 6458 * fr_win (only valid for the old curwin, NULL otherwise) 6459 */ 6460 6461 /* 6462 * Create a snapshot of the current frame sizes. 6463 */ 6464 void 6465 make_snapshot(int idx) 6466 { 6467 clear_snapshot(curtab, idx); 6468 make_snapshot_rec(topframe, &curtab->tp_snapshot[idx]); 6469 } 6470 6471 static void 6472 make_snapshot_rec(frame_T *fr, frame_T **frp) 6473 { 6474 *frp = ALLOC_CLEAR_ONE(frame_T); 6475 if (*frp == NULL) 6476 return; 6477 (*frp)->fr_layout = fr->fr_layout; 6478 (*frp)->fr_width = fr->fr_width; 6479 (*frp)->fr_height = fr->fr_height; 6480 if (fr->fr_next != NULL) 6481 make_snapshot_rec(fr->fr_next, &((*frp)->fr_next)); 6482 if (fr->fr_child != NULL) 6483 make_snapshot_rec(fr->fr_child, &((*frp)->fr_child)); 6484 if (fr->fr_layout == FR_LEAF && fr->fr_win == curwin) 6485 (*frp)->fr_win = curwin; 6486 } 6487 6488 /* 6489 * Remove any existing snapshot. 6490 */ 6491 static void 6492 clear_snapshot(tabpage_T *tp, int idx) 6493 { 6494 clear_snapshot_rec(tp->tp_snapshot[idx]); 6495 tp->tp_snapshot[idx] = NULL; 6496 } 6497 6498 static void 6499 clear_snapshot_rec(frame_T *fr) 6500 { 6501 if (fr != NULL) 6502 { 6503 clear_snapshot_rec(fr->fr_next); 6504 clear_snapshot_rec(fr->fr_child); 6505 vim_free(fr); 6506 } 6507 } 6508 6509 /* 6510 * Restore a previously created snapshot, if there is any. 6511 * This is only done if the screen size didn't change and the window layout is 6512 * still the same. 6513 */ 6514 void 6515 restore_snapshot( 6516 int idx, 6517 int close_curwin) /* closing current window */ 6518 { 6519 win_T *wp; 6520 6521 if (curtab->tp_snapshot[idx] != NULL 6522 && curtab->tp_snapshot[idx]->fr_width == topframe->fr_width 6523 && curtab->tp_snapshot[idx]->fr_height == topframe->fr_height 6524 && check_snapshot_rec(curtab->tp_snapshot[idx], topframe) == OK) 6525 { 6526 wp = restore_snapshot_rec(curtab->tp_snapshot[idx], topframe); 6527 win_comp_pos(); 6528 if (wp != NULL && close_curwin) 6529 win_goto(wp); 6530 redraw_all_later(NOT_VALID); 6531 } 6532 clear_snapshot(curtab, idx); 6533 } 6534 6535 /* 6536 * Check if frames "sn" and "fr" have the same layout, same following frames 6537 * and same children. And the window pointer is valid. 6538 */ 6539 static int 6540 check_snapshot_rec(frame_T *sn, frame_T *fr) 6541 { 6542 if (sn->fr_layout != fr->fr_layout 6543 || (sn->fr_next == NULL) != (fr->fr_next == NULL) 6544 || (sn->fr_child == NULL) != (fr->fr_child == NULL) 6545 || (sn->fr_next != NULL 6546 && check_snapshot_rec(sn->fr_next, fr->fr_next) == FAIL) 6547 || (sn->fr_child != NULL 6548 && check_snapshot_rec(sn->fr_child, fr->fr_child) == FAIL) 6549 || (sn->fr_win != NULL && !win_valid(sn->fr_win))) 6550 return FAIL; 6551 return OK; 6552 } 6553 6554 /* 6555 * Copy the size of snapshot frame "sn" to frame "fr". Do the same for all 6556 * following frames and children. 6557 * Returns a pointer to the old current window, or NULL. 6558 */ 6559 static win_T * 6560 restore_snapshot_rec(frame_T *sn, frame_T *fr) 6561 { 6562 win_T *wp = NULL; 6563 win_T *wp2; 6564 6565 fr->fr_height = sn->fr_height; 6566 fr->fr_width = sn->fr_width; 6567 if (fr->fr_layout == FR_LEAF) 6568 { 6569 frame_new_height(fr, fr->fr_height, FALSE, FALSE); 6570 frame_new_width(fr, fr->fr_width, FALSE, FALSE); 6571 wp = sn->fr_win; 6572 } 6573 if (sn->fr_next != NULL) 6574 { 6575 wp2 = restore_snapshot_rec(sn->fr_next, fr->fr_next); 6576 if (wp2 != NULL) 6577 wp = wp2; 6578 } 6579 if (sn->fr_child != NULL) 6580 { 6581 wp2 = restore_snapshot_rec(sn->fr_child, fr->fr_child); 6582 if (wp2 != NULL) 6583 wp = wp2; 6584 } 6585 return wp; 6586 } 6587 6588 #if defined(FEAT_GUI) || defined(PROTO) 6589 /* 6590 * Return TRUE if there is any vertically split window. 6591 */ 6592 int 6593 win_hasvertsplit(void) 6594 { 6595 frame_T *fr; 6596 6597 if (topframe->fr_layout == FR_ROW) 6598 return TRUE; 6599 6600 if (topframe->fr_layout == FR_COL) 6601 FOR_ALL_FRAMES(fr, topframe->fr_child) 6602 if (fr->fr_layout == FR_ROW) 6603 return TRUE; 6604 6605 return FALSE; 6606 } 6607 #endif 6608 6609 #if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO) 6610 int 6611 get_win_number(win_T *wp, win_T *first_win) 6612 { 6613 int i = 1; 6614 win_T *w; 6615 6616 for (w = first_win; w != NULL && w != wp; w = W_NEXT(w)) 6617 ++i; 6618 6619 if (w == NULL) 6620 return 0; 6621 else 6622 return i; 6623 } 6624 6625 int 6626 get_tab_number(tabpage_T *tp UNUSED) 6627 { 6628 int i = 1; 6629 tabpage_T *t; 6630 6631 for (t = first_tabpage; t != NULL && t != tp; t = t->tp_next) 6632 ++i; 6633 6634 if (t == NULL) 6635 return 0; 6636 else 6637 return i; 6638 } 6639 #endif 6640 6641 /* 6642 * Return TRUE if "topfrp" and its children are at the right height. 6643 */ 6644 static int 6645 frame_check_height(frame_T *topfrp, int height) 6646 { 6647 frame_T *frp; 6648 6649 if (topfrp->fr_height != height) 6650 return FALSE; 6651 6652 if (topfrp->fr_layout == FR_ROW) 6653 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6654 if (frp->fr_height != height) 6655 return FALSE; 6656 6657 return TRUE; 6658 } 6659 6660 /* 6661 * Return TRUE if "topfrp" and its children are at the right width. 6662 */ 6663 static int 6664 frame_check_width(frame_T *topfrp, int width) 6665 { 6666 frame_T *frp; 6667 6668 if (topfrp->fr_width != width) 6669 return FALSE; 6670 6671 if (topfrp->fr_layout == FR_COL) 6672 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6673 if (frp->fr_width != width) 6674 return FALSE; 6675 6676 return TRUE; 6677 } 6678 6679 #if defined(FEAT_SYN_HL) || defined(PROTO) 6680 /* 6681 * Simple int comparison function for use with qsort() 6682 */ 6683 static int 6684 int_cmp(const void *a, const void *b) 6685 { 6686 return *(const int *)a - *(const int *)b; 6687 } 6688 6689 /* 6690 * Handle setting 'colorcolumn' or 'textwidth' in window "wp". 6691 * Returns error message, NULL if it's OK. 6692 */ 6693 char * 6694 check_colorcolumn(win_T *wp) 6695 { 6696 char_u *s; 6697 int col; 6698 int count = 0; 6699 int color_cols[256]; 6700 int i; 6701 int j = 0; 6702 6703 if (wp->w_buffer == NULL) 6704 return NULL; // buffer was closed 6705 6706 for (s = wp->w_p_cc; *s != NUL && count < 255;) 6707 { 6708 if (*s == '-' || *s == '+') 6709 { 6710 // -N and +N: add to 'textwidth' 6711 col = (*s == '-') ? -1 : 1; 6712 ++s; 6713 if (!VIM_ISDIGIT(*s)) 6714 return e_invarg; 6715 col = col * getdigits(&s); 6716 if (wp->w_buffer->b_p_tw == 0) 6717 goto skip; // 'textwidth' not set, skip this item 6718 col += wp->w_buffer->b_p_tw; 6719 if (col < 0) 6720 goto skip; 6721 } 6722 else if (VIM_ISDIGIT(*s)) 6723 col = getdigits(&s); 6724 else 6725 return e_invarg; 6726 color_cols[count++] = col - 1; // 1-based to 0-based 6727 skip: 6728 if (*s == NUL) 6729 break; 6730 if (*s != ',') 6731 return e_invarg; 6732 if (*++s == NUL) 6733 return e_invarg; // illegal trailing comma as in "set cc=80," 6734 } 6735 6736 vim_free(wp->w_p_cc_cols); 6737 if (count == 0) 6738 wp->w_p_cc_cols = NULL; 6739 else 6740 { 6741 wp->w_p_cc_cols = ALLOC_MULT(int, count + 1); 6742 if (wp->w_p_cc_cols != NULL) 6743 { 6744 // sort the columns for faster usage on screen redraw inside 6745 // win_line() 6746 qsort(color_cols, count, sizeof(int), int_cmp); 6747 6748 for (i = 0; i < count; ++i) 6749 // skip duplicates 6750 if (j == 0 || wp->w_p_cc_cols[j - 1] != color_cols[i]) 6751 wp->w_p_cc_cols[j++] = color_cols[i]; 6752 wp->w_p_cc_cols[j] = -1; // end marker 6753 } 6754 } 6755 6756 return NULL; // no error 6757 } 6758 #endif 6759