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_ANY_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 case 'i': // Go to any match 549 case Ctrl_I: 550 type = FIND_ANY; 551 // FALLTHROUGH 552 case 'd': // Go to definition, using 'define' 553 case Ctrl_D: 554 CHECK_CMDWIN; 555 if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0) 556 break; 557 find_pattern_in_path(ptr, 0, len, TRUE, 558 Prenum == 0 ? TRUE : FALSE, type, 559 Prenum1, ACTION_SPLIT, (linenr_T)1, (linenr_T)MAXLNUM); 560 curwin->w_set_curswant = TRUE; 561 break; 562 #endif 563 564 // Quickfix window only: view the result under the cursor in a new split. 565 #if defined(FEAT_QUICKFIX) 566 case K_KENTER: 567 case CAR: 568 if (bt_quickfix(curbuf)) 569 qf_view_result(TRUE); 570 break; 571 #endif 572 573 // CTRL-W g extended commands 574 case 'g': 575 case Ctrl_G: 576 CHECK_CMDWIN; 577 #ifdef USE_ON_FLY_SCROLL 578 dont_scroll = TRUE; // disallow scrolling here 579 #endif 580 ++no_mapping; 581 ++allow_keys; // no mapping for xchar, but allow key codes 582 if (xchar == NUL) 583 xchar = plain_vgetc(); 584 LANGMAP_ADJUST(xchar, TRUE); 585 --no_mapping; 586 --allow_keys; 587 #ifdef FEAT_CMDL_INFO 588 (void)add_to_showcmd(xchar); 589 #endif 590 switch (xchar) 591 { 592 #if defined(FEAT_QUICKFIX) 593 case '}': 594 xchar = Ctrl_RSB; 595 if (Prenum) 596 g_do_tagpreview = Prenum; 597 else 598 g_do_tagpreview = p_pvh; 599 #endif 600 // FALLTHROUGH 601 case ']': 602 case Ctrl_RSB: 603 // keep Visual mode, can select words to use as a tag 604 if (Prenum) 605 postponed_split = Prenum; 606 else 607 postponed_split = -1; 608 609 // Execute the command right here, required when 610 // "wincmd g}" was used in a function. 611 do_nv_ident('g', xchar); 612 break; 613 614 #ifdef FEAT_SEARCHPATH 615 case 'f': // CTRL-W gf: "gf" in a new tab page 616 case 'F': // CTRL-W gF: "gF" in a new tab page 617 cmdmod.tab = tabpage_index(curtab) + 1; 618 nchar = xchar; 619 goto wingotofile; 620 #endif 621 case 't': // CTRL-W gt: go to next tab page 622 goto_tabpage((int)Prenum); 623 break; 624 625 case 'T': // CTRL-W gT: go to previous tab page 626 goto_tabpage(-(int)Prenum1); 627 break; 628 629 default: 630 beep_flush(); 631 break; 632 } 633 break; 634 635 default: beep_flush(); 636 break; 637 } 638 } 639 640 /* 641 * Figure out the address type for ":wincmd". 642 */ 643 void 644 get_wincmd_addr_type(char_u *arg, exarg_T *eap) 645 { 646 switch (*arg) 647 { 648 case 'S': 649 case Ctrl_S: 650 case 's': 651 case Ctrl_N: 652 case 'n': 653 case 'j': 654 case Ctrl_J: 655 case 'k': 656 case Ctrl_K: 657 case 'T': 658 case Ctrl_R: 659 case 'r': 660 case 'R': 661 case 'K': 662 case 'J': 663 case '+': 664 case '-': 665 case Ctrl__: 666 case '_': 667 case '|': 668 case ']': 669 case Ctrl_RSB: 670 case 'g': 671 case Ctrl_G: 672 case Ctrl_V: 673 case 'v': 674 case 'h': 675 case Ctrl_H: 676 case 'l': 677 case Ctrl_L: 678 case 'H': 679 case 'L': 680 case '>': 681 case '<': 682 #if defined(FEAT_QUICKFIX) 683 case '}': 684 #endif 685 #ifdef FEAT_SEARCHPATH 686 case 'f': 687 case 'F': 688 case Ctrl_F: 689 #endif 690 #ifdef FEAT_FIND_ID 691 case 'i': 692 case Ctrl_I: 693 case 'd': 694 case Ctrl_D: 695 #endif 696 // window size or any count 697 eap->addr_type = ADDR_OTHER; 698 break; 699 700 case Ctrl_HAT: 701 case '^': 702 // buffer number 703 eap->addr_type = ADDR_BUFFERS; 704 break; 705 706 case Ctrl_Q: 707 case 'q': 708 case Ctrl_C: 709 case 'c': 710 case Ctrl_O: 711 case 'o': 712 case Ctrl_W: 713 case 'w': 714 case 'W': 715 case 'x': 716 case Ctrl_X: 717 // window number 718 eap->addr_type = ADDR_WINDOWS; 719 break; 720 721 #if defined(FEAT_QUICKFIX) 722 case Ctrl_Z: 723 case 'z': 724 case 'P': 725 #endif 726 case 't': 727 case Ctrl_T: 728 case 'b': 729 case Ctrl_B: 730 case 'p': 731 case Ctrl_P: 732 case '=': 733 case CAR: 734 // no count 735 eap->addr_type = ADDR_NONE; 736 break; 737 } 738 } 739 740 static void 741 cmd_with_count( 742 char *cmd, 743 char_u *bufp, 744 size_t bufsize, 745 long Prenum) 746 { 747 size_t len = STRLEN(cmd); 748 749 STRCPY(bufp, cmd); 750 if (Prenum > 0) 751 vim_snprintf((char *)bufp + len, bufsize - len, "%ld", Prenum); 752 } 753 754 /* 755 * If "split_disallowed" is set given an error and return FAIL. 756 * Otherwise return OK. 757 */ 758 static int 759 check_split_disallowed() 760 { 761 if (split_disallowed > 0) 762 { 763 emsg(_("E242: Can't split a window while closing another")); 764 return FAIL; 765 } 766 return OK; 767 } 768 769 /* 770 * split the current window, implements CTRL-W s and :split 771 * 772 * "size" is the height or width for the new window, 0 to use half of current 773 * height or width. 774 * 775 * "flags": 776 * WSP_ROOM: require enough room for new window 777 * WSP_VERT: vertical split. 778 * WSP_TOP: open window at the top-left of the shell (help window). 779 * WSP_BOT: open window at the bottom-right of the shell (quickfix window). 780 * WSP_HELP: creating the help window, keep layout snapshot 781 * 782 * return FAIL for failure, OK otherwise 783 */ 784 int 785 win_split(int size, int flags) 786 { 787 if (ERROR_IF_ANY_POPUP_WINDOW) 788 return FAIL; 789 790 // When the ":tab" modifier was used open a new tab page instead. 791 if (may_open_tabpage() == OK) 792 return OK; 793 794 // Add flags from ":vertical", ":topleft" and ":botright". 795 flags |= cmdmod.split; 796 if ((flags & WSP_TOP) && (flags & WSP_BOT)) 797 { 798 emsg(_("E442: Can't split topleft and botright at the same time")); 799 return FAIL; 800 } 801 if (check_split_disallowed() == FAIL) 802 return FAIL; 803 804 // When creating the help window make a snapshot of the window layout. 805 // Otherwise clear the snapshot, it's now invalid. 806 if (flags & WSP_HELP) 807 make_snapshot(SNAP_HELP_IDX); 808 else 809 clear_snapshot(curtab, SNAP_HELP_IDX); 810 811 return win_split_ins(size, flags, NULL, 0); 812 } 813 814 /* 815 * When "new_wp" is NULL: split the current window in two. 816 * When "new_wp" is not NULL: insert this window at the far 817 * top/left/right/bottom. 818 * return FAIL for failure, OK otherwise 819 */ 820 int 821 win_split_ins( 822 int size, 823 int flags, 824 win_T *new_wp, 825 int dir) 826 { 827 win_T *wp = new_wp; 828 win_T *oldwin; 829 int new_size = size; 830 int i; 831 int need_status = 0; 832 int do_equal = FALSE; 833 int needed; 834 int available; 835 int oldwin_height = 0; 836 int layout; 837 frame_T *frp, *curfrp, *frp2, *prevfrp; 838 int before; 839 int minheight; 840 int wmh1; 841 int did_set_fraction = FALSE; 842 843 if (flags & WSP_TOP) 844 oldwin = firstwin; 845 else if (flags & WSP_BOT) 846 oldwin = lastwin; 847 else 848 oldwin = curwin; 849 850 // add a status line when p_ls == 1 and splitting the first window 851 if (ONE_WINDOW && p_ls == 1 && oldwin->w_status_height == 0) 852 { 853 if (VISIBLE_HEIGHT(oldwin) <= p_wmh && new_wp == NULL) 854 { 855 emsg(_(e_noroom)); 856 return FAIL; 857 } 858 need_status = STATUS_HEIGHT; 859 } 860 861 #ifdef FEAT_GUI 862 // May be needed for the scrollbars that are going to change. 863 if (gui.in_use) 864 out_flush(); 865 #endif 866 867 if (flags & WSP_VERT) 868 { 869 int wmw1; 870 int minwidth; 871 872 layout = FR_ROW; 873 874 /* 875 * Check if we are able to split the current window and compute its 876 * width. 877 */ 878 // Current window requires at least 1 space. 879 wmw1 = (p_wmw == 0 ? 1 : p_wmw); 880 needed = wmw1 + 1; 881 if (flags & WSP_ROOM) 882 needed += p_wiw - wmw1; 883 if (flags & (WSP_BOT | WSP_TOP)) 884 { 885 minwidth = frame_minwidth(topframe, NOWIN); 886 available = topframe->fr_width; 887 needed += minwidth; 888 } 889 else if (p_ea) 890 { 891 minwidth = frame_minwidth(oldwin->w_frame, NOWIN); 892 prevfrp = oldwin->w_frame; 893 for (frp = oldwin->w_frame->fr_parent; frp != NULL; 894 frp = frp->fr_parent) 895 { 896 if (frp->fr_layout == FR_ROW) 897 FOR_ALL_FRAMES(frp2, frp->fr_child) 898 if (frp2 != prevfrp) 899 minwidth += frame_minwidth(frp2, NOWIN); 900 prevfrp = frp; 901 } 902 available = topframe->fr_width; 903 needed += minwidth; 904 } 905 else 906 { 907 minwidth = frame_minwidth(oldwin->w_frame, NOWIN); 908 available = oldwin->w_frame->fr_width; 909 needed += minwidth; 910 } 911 if (available < needed && new_wp == NULL) 912 { 913 emsg(_(e_noroom)); 914 return FAIL; 915 } 916 if (new_size == 0) 917 new_size = oldwin->w_width / 2; 918 if (new_size > available - minwidth - 1) 919 new_size = available - minwidth - 1; 920 if (new_size < wmw1) 921 new_size = wmw1; 922 923 // if it doesn't fit in the current window, need win_equal() 924 if (oldwin->w_width - new_size - 1 < p_wmw) 925 do_equal = TRUE; 926 927 // We don't like to take lines for the new window from a 928 // 'winfixwidth' window. Take them from a window to the left or right 929 // instead, if possible. Add one for the separator. 930 if (oldwin->w_p_wfw) 931 win_setwidth_win(oldwin->w_width + new_size + 1, oldwin); 932 933 // Only make all windows the same width if one of them (except oldwin) 934 // is wider than one of the split windows. 935 if (!do_equal && p_ea && size == 0 && *p_ead != 'v' 936 && oldwin->w_frame->fr_parent != NULL) 937 { 938 frp = oldwin->w_frame->fr_parent->fr_child; 939 while (frp != NULL) 940 { 941 if (frp->fr_win != oldwin && frp->fr_win != NULL 942 && (frp->fr_win->w_width > new_size 943 || frp->fr_win->w_width > oldwin->w_width 944 - new_size - 1)) 945 { 946 do_equal = TRUE; 947 break; 948 } 949 frp = frp->fr_next; 950 } 951 } 952 } 953 else 954 { 955 layout = FR_COL; 956 957 /* 958 * Check if we are able to split the current window and compute its 959 * height. 960 */ 961 // Current window requires at least 1 space. 962 wmh1 = (p_wmh == 0 ? 1 : p_wmh) + WINBAR_HEIGHT(curwin); 963 needed = wmh1 + STATUS_HEIGHT; 964 if (flags & WSP_ROOM) 965 needed += p_wh - wmh1; 966 if (flags & (WSP_BOT | WSP_TOP)) 967 { 968 minheight = frame_minheight(topframe, NOWIN) + need_status; 969 available = topframe->fr_height; 970 needed += minheight; 971 } 972 else if (p_ea) 973 { 974 minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; 975 prevfrp = oldwin->w_frame; 976 for (frp = oldwin->w_frame->fr_parent; frp != NULL; 977 frp = frp->fr_parent) 978 { 979 if (frp->fr_layout == FR_COL) 980 FOR_ALL_FRAMES(frp2, frp->fr_child) 981 if (frp2 != prevfrp) 982 minheight += frame_minheight(frp2, NOWIN); 983 prevfrp = frp; 984 } 985 available = topframe->fr_height; 986 needed += minheight; 987 } 988 else 989 { 990 minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; 991 available = oldwin->w_frame->fr_height; 992 needed += minheight; 993 } 994 if (available < needed && new_wp == NULL) 995 { 996 emsg(_(e_noroom)); 997 return FAIL; 998 } 999 oldwin_height = oldwin->w_height; 1000 if (need_status) 1001 { 1002 oldwin->w_status_height = STATUS_HEIGHT; 1003 oldwin_height -= STATUS_HEIGHT; 1004 } 1005 if (new_size == 0) 1006 new_size = oldwin_height / 2; 1007 if (new_size > available - minheight - STATUS_HEIGHT) 1008 new_size = available - minheight - STATUS_HEIGHT; 1009 if (new_size < wmh1) 1010 new_size = wmh1; 1011 1012 // if it doesn't fit in the current window, need win_equal() 1013 if (oldwin_height - new_size - STATUS_HEIGHT < p_wmh) 1014 do_equal = TRUE; 1015 1016 // We don't like to take lines for the new window from a 1017 // 'winfixheight' window. Take them from a window above or below 1018 // instead, if possible. 1019 if (oldwin->w_p_wfh) 1020 { 1021 // Set w_fraction now so that the cursor keeps the same relative 1022 // vertical position using the old height. 1023 set_fraction(oldwin); 1024 did_set_fraction = TRUE; 1025 1026 win_setheight_win(oldwin->w_height + new_size + STATUS_HEIGHT, 1027 oldwin); 1028 oldwin_height = oldwin->w_height; 1029 if (need_status) 1030 oldwin_height -= STATUS_HEIGHT; 1031 } 1032 1033 // Only make all windows the same height if one of them (except oldwin) 1034 // is higher than one of the split windows. 1035 if (!do_equal && p_ea && size == 0 && *p_ead != 'h' 1036 && oldwin->w_frame->fr_parent != NULL) 1037 { 1038 frp = oldwin->w_frame->fr_parent->fr_child; 1039 while (frp != NULL) 1040 { 1041 if (frp->fr_win != oldwin && frp->fr_win != NULL 1042 && (frp->fr_win->w_height > new_size 1043 || frp->fr_win->w_height > oldwin_height - new_size 1044 - STATUS_HEIGHT)) 1045 { 1046 do_equal = TRUE; 1047 break; 1048 } 1049 frp = frp->fr_next; 1050 } 1051 } 1052 } 1053 1054 /* 1055 * allocate new window structure and link it in the window list 1056 */ 1057 if ((flags & WSP_TOP) == 0 1058 && ((flags & WSP_BOT) 1059 || (flags & WSP_BELOW) 1060 || (!(flags & WSP_ABOVE) 1061 && ( (flags & WSP_VERT) ? p_spr : p_sb)))) 1062 { 1063 // new window below/right of current one 1064 if (new_wp == NULL) 1065 wp = win_alloc(oldwin, FALSE); 1066 else 1067 win_append(oldwin, wp); 1068 } 1069 else 1070 { 1071 if (new_wp == NULL) 1072 wp = win_alloc(oldwin->w_prev, FALSE); 1073 else 1074 win_append(oldwin->w_prev, wp); 1075 } 1076 1077 if (new_wp == NULL) 1078 { 1079 if (wp == NULL) 1080 return FAIL; 1081 1082 new_frame(wp); 1083 if (wp->w_frame == NULL) 1084 { 1085 win_free(wp, NULL); 1086 return FAIL; 1087 } 1088 1089 // make the contents of the new window the same as the current one 1090 win_init(wp, curwin, flags); 1091 } 1092 1093 /* 1094 * Reorganise the tree of frames to insert the new window. 1095 */ 1096 if (flags & (WSP_TOP | WSP_BOT)) 1097 { 1098 if ((topframe->fr_layout == FR_COL && (flags & WSP_VERT) == 0) 1099 || (topframe->fr_layout == FR_ROW && (flags & WSP_VERT) != 0)) 1100 { 1101 curfrp = topframe->fr_child; 1102 if (flags & WSP_BOT) 1103 while (curfrp->fr_next != NULL) 1104 curfrp = curfrp->fr_next; 1105 } 1106 else 1107 curfrp = topframe; 1108 before = (flags & WSP_TOP); 1109 } 1110 else 1111 { 1112 curfrp = oldwin->w_frame; 1113 if (flags & WSP_BELOW) 1114 before = FALSE; 1115 else if (flags & WSP_ABOVE) 1116 before = TRUE; 1117 else if (flags & WSP_VERT) 1118 before = !p_spr; 1119 else 1120 before = !p_sb; 1121 } 1122 if (curfrp->fr_parent == NULL || curfrp->fr_parent->fr_layout != layout) 1123 { 1124 // Need to create a new frame in the tree to make a branch. 1125 frp = ALLOC_CLEAR_ONE(frame_T); 1126 *frp = *curfrp; 1127 curfrp->fr_layout = layout; 1128 frp->fr_parent = curfrp; 1129 frp->fr_next = NULL; 1130 frp->fr_prev = NULL; 1131 curfrp->fr_child = frp; 1132 curfrp->fr_win = NULL; 1133 curfrp = frp; 1134 if (frp->fr_win != NULL) 1135 oldwin->w_frame = frp; 1136 else 1137 FOR_ALL_FRAMES(frp, frp->fr_child) 1138 frp->fr_parent = curfrp; 1139 } 1140 1141 if (new_wp == NULL) 1142 frp = wp->w_frame; 1143 else 1144 frp = new_wp->w_frame; 1145 frp->fr_parent = curfrp->fr_parent; 1146 1147 // Insert the new frame at the right place in the frame list. 1148 if (before) 1149 frame_insert(curfrp, frp); 1150 else 1151 frame_append(curfrp, frp); 1152 1153 // Set w_fraction now so that the cursor keeps the same relative 1154 // vertical position. 1155 if (!did_set_fraction) 1156 set_fraction(oldwin); 1157 wp->w_fraction = oldwin->w_fraction; 1158 1159 if (flags & WSP_VERT) 1160 { 1161 wp->w_p_scr = curwin->w_p_scr; 1162 1163 if (need_status) 1164 { 1165 win_new_height(oldwin, oldwin->w_height - 1); 1166 oldwin->w_status_height = need_status; 1167 } 1168 if (flags & (WSP_TOP | WSP_BOT)) 1169 { 1170 // set height and row of new window to full height 1171 wp->w_winrow = tabline_height(); 1172 win_new_height(wp, curfrp->fr_height - (p_ls > 0) 1173 - WINBAR_HEIGHT(wp)); 1174 wp->w_status_height = (p_ls > 0); 1175 } 1176 else 1177 { 1178 // height and row of new window is same as current window 1179 wp->w_winrow = oldwin->w_winrow; 1180 win_new_height(wp, VISIBLE_HEIGHT(oldwin)); 1181 wp->w_status_height = oldwin->w_status_height; 1182 } 1183 frp->fr_height = curfrp->fr_height; 1184 1185 // "new_size" of the current window goes to the new window, use 1186 // one column for the vertical separator 1187 win_new_width(wp, new_size); 1188 if (before) 1189 wp->w_vsep_width = 1; 1190 else 1191 { 1192 wp->w_vsep_width = oldwin->w_vsep_width; 1193 oldwin->w_vsep_width = 1; 1194 } 1195 if (flags & (WSP_TOP | WSP_BOT)) 1196 { 1197 if (flags & WSP_BOT) 1198 frame_add_vsep(curfrp); 1199 // Set width of neighbor frame 1200 frame_new_width(curfrp, curfrp->fr_width 1201 - (new_size + ((flags & WSP_TOP) != 0)), flags & WSP_TOP, 1202 FALSE); 1203 } 1204 else 1205 win_new_width(oldwin, oldwin->w_width - (new_size + 1)); 1206 if (before) // new window left of current one 1207 { 1208 wp->w_wincol = oldwin->w_wincol; 1209 oldwin->w_wincol += new_size + 1; 1210 } 1211 else // new window right of current one 1212 wp->w_wincol = oldwin->w_wincol + oldwin->w_width + 1; 1213 frame_fix_width(oldwin); 1214 frame_fix_width(wp); 1215 } 1216 else 1217 { 1218 // width and column of new window is same as current window 1219 if (flags & (WSP_TOP | WSP_BOT)) 1220 { 1221 wp->w_wincol = 0; 1222 win_new_width(wp, Columns); 1223 wp->w_vsep_width = 0; 1224 } 1225 else 1226 { 1227 wp->w_wincol = oldwin->w_wincol; 1228 win_new_width(wp, oldwin->w_width); 1229 wp->w_vsep_width = oldwin->w_vsep_width; 1230 } 1231 frp->fr_width = curfrp->fr_width; 1232 1233 // "new_size" of the current window goes to the new window, use 1234 // one row for the status line 1235 win_new_height(wp, new_size); 1236 if (flags & (WSP_TOP | WSP_BOT)) 1237 { 1238 int new_fr_height = curfrp->fr_height - new_size 1239 + WINBAR_HEIGHT(wp) ; 1240 1241 if (!((flags & WSP_BOT) && p_ls == 0)) 1242 new_fr_height -= STATUS_HEIGHT; 1243 frame_new_height(curfrp, new_fr_height, flags & WSP_TOP, FALSE); 1244 } 1245 else 1246 win_new_height(oldwin, oldwin_height - (new_size + STATUS_HEIGHT)); 1247 if (before) // new window above current one 1248 { 1249 wp->w_winrow = oldwin->w_winrow; 1250 wp->w_status_height = STATUS_HEIGHT; 1251 oldwin->w_winrow += wp->w_height + STATUS_HEIGHT; 1252 } 1253 else // new window below current one 1254 { 1255 wp->w_winrow = oldwin->w_winrow + VISIBLE_HEIGHT(oldwin) 1256 + STATUS_HEIGHT; 1257 wp->w_status_height = oldwin->w_status_height; 1258 if (!(flags & WSP_BOT)) 1259 oldwin->w_status_height = STATUS_HEIGHT; 1260 } 1261 if (flags & WSP_BOT) 1262 frame_add_statusline(curfrp); 1263 frame_fix_height(wp); 1264 frame_fix_height(oldwin); 1265 } 1266 1267 if (flags & (WSP_TOP | WSP_BOT)) 1268 (void)win_comp_pos(); 1269 1270 /* 1271 * Both windows need redrawing 1272 */ 1273 redraw_win_later(wp, NOT_VALID); 1274 wp->w_redr_status = TRUE; 1275 redraw_win_later(oldwin, NOT_VALID); 1276 oldwin->w_redr_status = TRUE; 1277 1278 if (need_status) 1279 { 1280 msg_row = Rows - 1; 1281 msg_col = sc_col; 1282 msg_clr_eos_force(); // Old command/ruler may still be there 1283 comp_col(); 1284 msg_row = Rows - 1; 1285 msg_col = 0; // put position back at start of line 1286 } 1287 1288 /* 1289 * equalize the window sizes. 1290 */ 1291 if (do_equal || dir != 0) 1292 win_equal(wp, TRUE, 1293 (flags & WSP_VERT) ? (dir == 'v' ? 'b' : 'h') 1294 : dir == 'h' ? 'b' : 'v'); 1295 1296 // Don't change the window height/width to 'winheight' / 'winwidth' if a 1297 // size was given. 1298 if (flags & WSP_VERT) 1299 { 1300 i = p_wiw; 1301 if (size != 0) 1302 p_wiw = size; 1303 1304 # ifdef FEAT_GUI 1305 // When 'guioptions' includes 'L' or 'R' may have to add scrollbars. 1306 if (gui.in_use) 1307 gui_init_which_components(NULL); 1308 # endif 1309 } 1310 else 1311 { 1312 i = p_wh; 1313 if (size != 0) 1314 p_wh = size; 1315 } 1316 1317 #ifdef FEAT_JUMPLIST 1318 // Keep same changelist position in new window. 1319 wp->w_changelistidx = oldwin->w_changelistidx; 1320 #endif 1321 1322 /* 1323 * make the new window the current window 1324 */ 1325 win_enter_ext(wp, FALSE, FALSE, TRUE, TRUE, TRUE); 1326 if (flags & WSP_VERT) 1327 p_wiw = i; 1328 else 1329 p_wh = i; 1330 1331 return OK; 1332 } 1333 1334 1335 /* 1336 * Initialize window "newp" from window "oldp". 1337 * Used when splitting a window and when creating a new tab page. 1338 * The windows will both edit the same buffer. 1339 * WSP_NEWLOC may be specified in flags to prevent the location list from 1340 * being copied. 1341 */ 1342 static void 1343 win_init(win_T *newp, win_T *oldp, int flags UNUSED) 1344 { 1345 int i; 1346 1347 newp->w_buffer = oldp->w_buffer; 1348 #ifdef FEAT_SYN_HL 1349 newp->w_s = &(oldp->w_buffer->b_s); 1350 #endif 1351 oldp->w_buffer->b_nwindows++; 1352 newp->w_cursor = oldp->w_cursor; 1353 newp->w_valid = 0; 1354 newp->w_curswant = oldp->w_curswant; 1355 newp->w_set_curswant = oldp->w_set_curswant; 1356 newp->w_topline = oldp->w_topline; 1357 #ifdef FEAT_DIFF 1358 newp->w_topfill = oldp->w_topfill; 1359 #endif 1360 newp->w_leftcol = oldp->w_leftcol; 1361 newp->w_pcmark = oldp->w_pcmark; 1362 newp->w_prev_pcmark = oldp->w_prev_pcmark; 1363 newp->w_alt_fnum = oldp->w_alt_fnum; 1364 newp->w_wrow = oldp->w_wrow; 1365 newp->w_fraction = oldp->w_fraction; 1366 newp->w_prev_fraction_row = oldp->w_prev_fraction_row; 1367 #ifdef FEAT_JUMPLIST 1368 copy_jumplist(oldp, newp); 1369 #endif 1370 #ifdef FEAT_QUICKFIX 1371 if (flags & WSP_NEWLOC) 1372 { 1373 // Don't copy the location list. 1374 newp->w_llist = NULL; 1375 newp->w_llist_ref = NULL; 1376 } 1377 else 1378 copy_loclist_stack(oldp, newp); 1379 #endif 1380 newp->w_localdir = (oldp->w_localdir == NULL) 1381 ? NULL : vim_strsave(oldp->w_localdir); 1382 1383 // copy tagstack and folds 1384 for (i = 0; i < oldp->w_tagstacklen; i++) 1385 { 1386 taggy_T *tag = &newp->w_tagstack[i]; 1387 *tag = oldp->w_tagstack[i]; 1388 if (tag->tagname != NULL) 1389 tag->tagname = vim_strsave(tag->tagname); 1390 if (tag->user_data != NULL) 1391 tag->user_data = vim_strsave(tag->user_data); 1392 } 1393 newp->w_tagstackidx = oldp->w_tagstackidx; 1394 newp->w_tagstacklen = oldp->w_tagstacklen; 1395 #ifdef FEAT_FOLDING 1396 copyFoldingState(oldp, newp); 1397 #endif 1398 1399 win_init_some(newp, oldp); 1400 1401 #ifdef FEAT_SYN_HL 1402 check_colorcolumn(newp); 1403 #endif 1404 } 1405 1406 /* 1407 * Initialize window "newp" from window "old". 1408 * Only the essential things are copied. 1409 */ 1410 static void 1411 win_init_some(win_T *newp, win_T *oldp) 1412 { 1413 // Use the same argument list. 1414 newp->w_alist = oldp->w_alist; 1415 ++newp->w_alist->al_refcount; 1416 newp->w_arg_idx = oldp->w_arg_idx; 1417 1418 // copy options from existing window 1419 win_copy_options(oldp, newp); 1420 } 1421 1422 /* 1423 * Return TRUE if "win" is a global popup or a popup in the current tab page. 1424 */ 1425 int 1426 win_valid_popup(win_T *win UNUSED) 1427 { 1428 #ifdef FEAT_PROP_POPUP 1429 win_T *wp; 1430 1431 FOR_ALL_POPUPWINS(wp) 1432 if (wp == win) 1433 return TRUE; 1434 FOR_ALL_POPUPWINS_IN_TAB(curtab, wp) 1435 if (wp == win) 1436 return TRUE; 1437 #endif 1438 return FALSE; 1439 } 1440 1441 /* 1442 * Check if "win" is a pointer to an existing window in the current tab page. 1443 */ 1444 int 1445 win_valid(win_T *win) 1446 { 1447 win_T *wp; 1448 1449 if (win == NULL) 1450 return FALSE; 1451 FOR_ALL_WINDOWS(wp) 1452 if (wp == win) 1453 return TRUE; 1454 return win_valid_popup(win); 1455 } 1456 1457 /* 1458 * Check if "win" is a pointer to an existing window in any tab page. 1459 */ 1460 int 1461 win_valid_any_tab(win_T *win) 1462 { 1463 win_T *wp; 1464 tabpage_T *tp; 1465 1466 if (win == NULL) 1467 return FALSE; 1468 FOR_ALL_TABPAGES(tp) 1469 { 1470 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 1471 { 1472 if (wp == win) 1473 return TRUE; 1474 } 1475 #ifdef FEAT_PROP_POPUP 1476 FOR_ALL_POPUPWINS_IN_TAB(tp, wp) 1477 if (wp == win) 1478 return TRUE; 1479 #endif 1480 } 1481 return win_valid_popup(win); 1482 } 1483 1484 /* 1485 * Return the number of windows. 1486 */ 1487 int 1488 win_count(void) 1489 { 1490 win_T *wp; 1491 int count = 0; 1492 1493 FOR_ALL_WINDOWS(wp) 1494 ++count; 1495 return count; 1496 } 1497 1498 /* 1499 * Make "count" windows on the screen. 1500 * Return actual number of windows on the screen. 1501 * Must be called when there is just one window, filling the whole screen 1502 * (excluding the command line). 1503 */ 1504 int 1505 make_windows( 1506 int count, 1507 int vertical UNUSED) // split windows vertically if TRUE 1508 { 1509 int maxcount; 1510 int todo; 1511 1512 if (vertical) 1513 { 1514 // Each windows needs at least 'winminwidth' lines and a separator 1515 // column. 1516 maxcount = (curwin->w_width + curwin->w_vsep_width 1517 - (p_wiw - p_wmw)) / (p_wmw + 1); 1518 } 1519 else 1520 { 1521 // Each window needs at least 'winminheight' lines and a status line. 1522 maxcount = (VISIBLE_HEIGHT(curwin) + curwin->w_status_height 1523 - (p_wh - p_wmh)) / (p_wmh + STATUS_HEIGHT); 1524 } 1525 1526 if (maxcount < 2) 1527 maxcount = 2; 1528 if (count > maxcount) 1529 count = maxcount; 1530 1531 /* 1532 * add status line now, otherwise first window will be too big 1533 */ 1534 if (count > 1) 1535 last_status(TRUE); 1536 1537 /* 1538 * Don't execute autocommands while creating the windows. Must do that 1539 * when putting the buffers in the windows. 1540 */ 1541 block_autocmds(); 1542 1543 // todo is number of windows left to create 1544 for (todo = count - 1; todo > 0; --todo) 1545 if (vertical) 1546 { 1547 if (win_split(curwin->w_width - (curwin->w_width - todo) 1548 / (todo + 1) - 1, WSP_VERT | WSP_ABOVE) == FAIL) 1549 break; 1550 } 1551 else 1552 { 1553 if (win_split(curwin->w_height - (curwin->w_height - todo 1554 * STATUS_HEIGHT) / (todo + 1) 1555 - STATUS_HEIGHT, WSP_ABOVE) == FAIL) 1556 break; 1557 } 1558 1559 unblock_autocmds(); 1560 1561 // return actual number of windows 1562 return (count - todo); 1563 } 1564 1565 /* 1566 * Exchange current and next window 1567 */ 1568 static void 1569 win_exchange(long Prenum) 1570 { 1571 frame_T *frp; 1572 frame_T *frp2; 1573 win_T *wp; 1574 win_T *wp2; 1575 int temp; 1576 1577 if (ERROR_IF_ANY_POPUP_WINDOW) 1578 return; 1579 if (ONE_WINDOW) // just one window 1580 { 1581 beep_flush(); 1582 return; 1583 } 1584 1585 #ifdef FEAT_GUI 1586 need_mouse_correct = TRUE; 1587 #endif 1588 1589 /* 1590 * find window to exchange with 1591 */ 1592 if (Prenum) 1593 { 1594 frp = curwin->w_frame->fr_parent->fr_child; 1595 while (frp != NULL && --Prenum > 0) 1596 frp = frp->fr_next; 1597 } 1598 else if (curwin->w_frame->fr_next != NULL) // Swap with next 1599 frp = curwin->w_frame->fr_next; 1600 else // Swap last window in row/col with previous 1601 frp = curwin->w_frame->fr_prev; 1602 1603 // We can only exchange a window with another window, not with a frame 1604 // containing windows. 1605 if (frp == NULL || frp->fr_win == NULL || frp->fr_win == curwin) 1606 return; 1607 wp = frp->fr_win; 1608 1609 /* 1610 * 1. remove curwin from the list. Remember after which window it was in wp2 1611 * 2. insert curwin before wp in the list 1612 * if wp != wp2 1613 * 3. remove wp from the list 1614 * 4. insert wp after wp2 1615 * 5. exchange the status line height and vsep width. 1616 */ 1617 wp2 = curwin->w_prev; 1618 frp2 = curwin->w_frame->fr_prev; 1619 if (wp->w_prev != curwin) 1620 { 1621 win_remove(curwin, NULL); 1622 frame_remove(curwin->w_frame); 1623 win_append(wp->w_prev, curwin); 1624 frame_insert(frp, curwin->w_frame); 1625 } 1626 if (wp != wp2) 1627 { 1628 win_remove(wp, NULL); 1629 frame_remove(wp->w_frame); 1630 win_append(wp2, wp); 1631 if (frp2 == NULL) 1632 frame_insert(wp->w_frame->fr_parent->fr_child, wp->w_frame); 1633 else 1634 frame_append(frp2, wp->w_frame); 1635 } 1636 temp = curwin->w_status_height; 1637 curwin->w_status_height = wp->w_status_height; 1638 wp->w_status_height = temp; 1639 temp = curwin->w_vsep_width; 1640 curwin->w_vsep_width = wp->w_vsep_width; 1641 wp->w_vsep_width = temp; 1642 1643 // If the windows are not in the same frame, exchange the sizes to avoid 1644 // messing up the window layout. Otherwise fix the frame sizes. 1645 if (curwin->w_frame->fr_parent != wp->w_frame->fr_parent) 1646 { 1647 temp = curwin->w_height; 1648 curwin->w_height = wp->w_height; 1649 wp->w_height = temp; 1650 temp = curwin->w_width; 1651 curwin->w_width = wp->w_width; 1652 wp->w_width = temp; 1653 } 1654 else 1655 { 1656 frame_fix_height(curwin); 1657 frame_fix_height(wp); 1658 frame_fix_width(curwin); 1659 frame_fix_width(wp); 1660 } 1661 1662 (void)win_comp_pos(); // recompute window positions 1663 1664 win_enter(wp, TRUE); 1665 redraw_all_later(NOT_VALID); 1666 } 1667 1668 /* 1669 * rotate windows: if upwards TRUE the second window becomes the first one 1670 * if upwards FALSE the first window becomes the second one 1671 */ 1672 static void 1673 win_rotate(int upwards, int count) 1674 { 1675 win_T *wp1; 1676 win_T *wp2; 1677 frame_T *frp; 1678 int n; 1679 1680 if (ONE_WINDOW) // nothing to do 1681 { 1682 beep_flush(); 1683 return; 1684 } 1685 1686 #ifdef FEAT_GUI 1687 need_mouse_correct = TRUE; 1688 #endif 1689 1690 // Check if all frames in this row/col have one window. 1691 FOR_ALL_FRAMES(frp, curwin->w_frame->fr_parent->fr_child) 1692 if (frp->fr_win == NULL) 1693 { 1694 emsg(_("E443: Cannot rotate when another window is split")); 1695 return; 1696 } 1697 1698 while (count--) 1699 { 1700 if (upwards) // first window becomes last window 1701 { 1702 // remove first window/frame from the list 1703 frp = curwin->w_frame->fr_parent->fr_child; 1704 wp1 = frp->fr_win; 1705 win_remove(wp1, NULL); 1706 frame_remove(frp); 1707 1708 // find last frame and append removed window/frame after it 1709 for ( ; frp->fr_next != NULL; frp = frp->fr_next) 1710 ; 1711 win_append(frp->fr_win, wp1); 1712 frame_append(frp, wp1->w_frame); 1713 1714 wp2 = frp->fr_win; // previously last window 1715 } 1716 else // last window becomes first window 1717 { 1718 // find last window/frame in the list and remove it 1719 for (frp = curwin->w_frame; frp->fr_next != NULL; 1720 frp = frp->fr_next) 1721 ; 1722 wp1 = frp->fr_win; 1723 wp2 = wp1->w_prev; // will become last window 1724 win_remove(wp1, NULL); 1725 frame_remove(frp); 1726 1727 // append the removed window/frame before the first in the list 1728 win_append(frp->fr_parent->fr_child->fr_win->w_prev, wp1); 1729 frame_insert(frp->fr_parent->fr_child, frp); 1730 } 1731 1732 // exchange status height and vsep width of old and new last window 1733 n = wp2->w_status_height; 1734 wp2->w_status_height = wp1->w_status_height; 1735 wp1->w_status_height = n; 1736 frame_fix_height(wp1); 1737 frame_fix_height(wp2); 1738 n = wp2->w_vsep_width; 1739 wp2->w_vsep_width = wp1->w_vsep_width; 1740 wp1->w_vsep_width = n; 1741 frame_fix_width(wp1); 1742 frame_fix_width(wp2); 1743 1744 // recompute w_winrow and w_wincol for all windows 1745 (void)win_comp_pos(); 1746 } 1747 1748 redraw_all_later(NOT_VALID); 1749 } 1750 1751 /* 1752 * Move the current window to the very top/bottom/left/right of the screen. 1753 */ 1754 static void 1755 win_totop(int size, int flags) 1756 { 1757 int dir; 1758 int height = curwin->w_height; 1759 1760 if (ONE_WINDOW) 1761 { 1762 beep_flush(); 1763 return; 1764 } 1765 if (check_split_disallowed() == FAIL) 1766 return; 1767 1768 // Remove the window and frame from the tree of frames. 1769 (void)winframe_remove(curwin, &dir, NULL); 1770 win_remove(curwin, NULL); 1771 last_status(FALSE); // may need to remove last status line 1772 (void)win_comp_pos(); // recompute window positions 1773 1774 // Split a window on the desired side and put the window there. 1775 (void)win_split_ins(size, flags, curwin, dir); 1776 if (!(flags & WSP_VERT)) 1777 { 1778 win_setheight(height); 1779 if (p_ea) 1780 win_equal(curwin, TRUE, 'v'); 1781 } 1782 1783 #if defined(FEAT_GUI) 1784 // When 'guioptions' includes 'L' or 'R' may have to remove or add 1785 // scrollbars. Have to update them anyway. 1786 gui_may_update_scrollbars(); 1787 #endif 1788 } 1789 1790 /* 1791 * Move window "win1" to below/right of "win2" and make "win1" the current 1792 * window. Only works within the same frame! 1793 */ 1794 void 1795 win_move_after(win_T *win1, win_T *win2) 1796 { 1797 int height; 1798 1799 // check if the arguments are reasonable 1800 if (win1 == win2) 1801 return; 1802 1803 // check if there is something to do 1804 if (win2->w_next != win1) 1805 { 1806 if (win1->w_frame->fr_parent != win2->w_frame->fr_parent) 1807 { 1808 iemsg("INTERNAL: trying to move a window into another frame"); 1809 return; 1810 } 1811 1812 // may need move the status line/vertical separator of the last window 1813 // 1814 if (win1 == lastwin) 1815 { 1816 height = win1->w_prev->w_status_height; 1817 win1->w_prev->w_status_height = win1->w_status_height; 1818 win1->w_status_height = height; 1819 if (win1->w_prev->w_vsep_width == 1) 1820 { 1821 // Remove the vertical separator from the last-but-one window, 1822 // add it to the last window. Adjust the frame widths. 1823 win1->w_prev->w_vsep_width = 0; 1824 win1->w_prev->w_frame->fr_width -= 1; 1825 win1->w_vsep_width = 1; 1826 win1->w_frame->fr_width += 1; 1827 } 1828 } 1829 else if (win2 == lastwin) 1830 { 1831 height = win1->w_status_height; 1832 win1->w_status_height = win2->w_status_height; 1833 win2->w_status_height = height; 1834 if (win1->w_vsep_width == 1) 1835 { 1836 // Remove the vertical separator from win1, add it to the last 1837 // window, win2. Adjust the frame widths. 1838 win2->w_vsep_width = 1; 1839 win2->w_frame->fr_width += 1; 1840 win1->w_vsep_width = 0; 1841 win1->w_frame->fr_width -= 1; 1842 } 1843 } 1844 win_remove(win1, NULL); 1845 frame_remove(win1->w_frame); 1846 win_append(win2, win1); 1847 frame_append(win2->w_frame, win1->w_frame); 1848 1849 (void)win_comp_pos(); // recompute w_winrow for all windows 1850 redraw_later(NOT_VALID); 1851 } 1852 win_enter(win1, FALSE); 1853 } 1854 1855 /* 1856 * Make all windows the same height. 1857 * 'next_curwin' will soon be the current window, make sure it has enough 1858 * rows. 1859 */ 1860 void 1861 win_equal( 1862 win_T *next_curwin, // pointer to current window to be or NULL 1863 int current, // do only frame with current window 1864 int dir) // 'v' for vertically, 'h' for horizontally, 1865 // 'b' for both, 0 for using p_ead 1866 { 1867 if (dir == 0) 1868 dir = *p_ead; 1869 win_equal_rec(next_curwin == NULL ? curwin : next_curwin, current, 1870 topframe, dir, 0, tabline_height(), 1871 (int)Columns, topframe->fr_height); 1872 } 1873 1874 /* 1875 * Set a frame to a new position and height, spreading the available room 1876 * equally over contained frames. 1877 * The window "next_curwin" (if not NULL) should at least get the size from 1878 * 'winheight' and 'winwidth' if possible. 1879 */ 1880 static void 1881 win_equal_rec( 1882 win_T *next_curwin, // pointer to current window to be or NULL 1883 int current, // do only frame with current window 1884 frame_T *topfr, // frame to set size off 1885 int dir, // 'v', 'h' or 'b', see win_equal() 1886 int col, // horizontal position for frame 1887 int row, // vertical position for frame 1888 int width, // new width of frame 1889 int height) // new height of frame 1890 { 1891 int n, m; 1892 int extra_sep = 0; 1893 int wincount, totwincount = 0; 1894 frame_T *fr; 1895 int next_curwin_size = 0; 1896 int room = 0; 1897 int new_size; 1898 int has_next_curwin = 0; 1899 int hnc; 1900 1901 if (topfr->fr_layout == FR_LEAF) 1902 { 1903 // Set the width/height of this frame. 1904 // Redraw when size or position changes 1905 if (topfr->fr_height != height || topfr->fr_win->w_winrow != row 1906 || topfr->fr_width != width || topfr->fr_win->w_wincol != col 1907 ) 1908 { 1909 topfr->fr_win->w_winrow = row; 1910 frame_new_height(topfr, height, FALSE, FALSE); 1911 topfr->fr_win->w_wincol = col; 1912 frame_new_width(topfr, width, FALSE, FALSE); 1913 redraw_all_later(NOT_VALID); 1914 } 1915 } 1916 else if (topfr->fr_layout == FR_ROW) 1917 { 1918 topfr->fr_width = width; 1919 topfr->fr_height = height; 1920 1921 if (dir != 'v') // equalize frame widths 1922 { 1923 // Compute the maximum number of windows horizontally in this 1924 // frame. 1925 n = frame_minwidth(topfr, NOWIN); 1926 // add one for the rightmost window, it doesn't have a separator 1927 if (col + width == Columns) 1928 extra_sep = 1; 1929 else 1930 extra_sep = 0; 1931 totwincount = (n + extra_sep) / (p_wmw + 1); 1932 has_next_curwin = frame_has_win(topfr, next_curwin); 1933 1934 /* 1935 * Compute width for "next_curwin" window and room available for 1936 * other windows. 1937 * "m" is the minimal width when counting p_wiw for "next_curwin". 1938 */ 1939 m = frame_minwidth(topfr, next_curwin); 1940 room = width - m; 1941 if (room < 0) 1942 { 1943 next_curwin_size = p_wiw + room; 1944 room = 0; 1945 } 1946 else 1947 { 1948 next_curwin_size = -1; 1949 FOR_ALL_FRAMES(fr, topfr->fr_child) 1950 { 1951 // If 'winfixwidth' set keep the window width if 1952 // possible. 1953 // Watch out for this window being the next_curwin. 1954 if (frame_fixed_width(fr)) 1955 { 1956 n = frame_minwidth(fr, NOWIN); 1957 new_size = fr->fr_width; 1958 if (frame_has_win(fr, next_curwin)) 1959 { 1960 room += p_wiw - p_wmw; 1961 next_curwin_size = 0; 1962 if (new_size < p_wiw) 1963 new_size = p_wiw; 1964 } 1965 else 1966 // These windows don't use up room. 1967 totwincount -= (n + (fr->fr_next == NULL 1968 ? extra_sep : 0)) / (p_wmw + 1); 1969 room -= new_size - n; 1970 if (room < 0) 1971 { 1972 new_size += room; 1973 room = 0; 1974 } 1975 fr->fr_newwidth = new_size; 1976 } 1977 } 1978 if (next_curwin_size == -1) 1979 { 1980 if (!has_next_curwin) 1981 next_curwin_size = 0; 1982 else if (totwincount > 1 1983 && (room + (totwincount - 2)) 1984 / (totwincount - 1) > p_wiw) 1985 { 1986 // Can make all windows wider than 'winwidth', spread 1987 // the room equally. 1988 next_curwin_size = (room + p_wiw 1989 + (totwincount - 1) * p_wmw 1990 + (totwincount - 1)) / totwincount; 1991 room -= next_curwin_size - p_wiw; 1992 } 1993 else 1994 next_curwin_size = p_wiw; 1995 } 1996 } 1997 1998 if (has_next_curwin) 1999 --totwincount; // don't count curwin 2000 } 2001 2002 FOR_ALL_FRAMES(fr, topfr->fr_child) 2003 { 2004 wincount = 1; 2005 if (fr->fr_next == NULL) 2006 // last frame gets all that remains (avoid roundoff error) 2007 new_size = width; 2008 else if (dir == 'v') 2009 new_size = fr->fr_width; 2010 else if (frame_fixed_width(fr)) 2011 { 2012 new_size = fr->fr_newwidth; 2013 wincount = 0; // doesn't count as a sizeable window 2014 } 2015 else 2016 { 2017 // Compute the maximum number of windows horiz. in "fr". 2018 n = frame_minwidth(fr, NOWIN); 2019 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 2020 / (p_wmw + 1); 2021 m = frame_minwidth(fr, next_curwin); 2022 if (has_next_curwin) 2023 hnc = frame_has_win(fr, next_curwin); 2024 else 2025 hnc = FALSE; 2026 if (hnc) // don't count next_curwin 2027 --wincount; 2028 if (totwincount == 0) 2029 new_size = room; 2030 else 2031 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 2032 / totwincount; 2033 if (hnc) // add next_curwin size 2034 { 2035 next_curwin_size -= p_wiw - (m - n); 2036 new_size += next_curwin_size; 2037 room -= new_size - next_curwin_size; 2038 } 2039 else 2040 room -= new_size; 2041 new_size += n; 2042 } 2043 2044 // Skip frame that is full width when splitting or closing a 2045 // window, unless equalizing all frames. 2046 if (!current || dir != 'v' || topfr->fr_parent != NULL 2047 || (new_size != fr->fr_width) 2048 || frame_has_win(fr, next_curwin)) 2049 win_equal_rec(next_curwin, current, fr, dir, col, row, 2050 new_size, height); 2051 col += new_size; 2052 width -= new_size; 2053 totwincount -= wincount; 2054 } 2055 } 2056 else // topfr->fr_layout == FR_COL 2057 { 2058 topfr->fr_width = width; 2059 topfr->fr_height = height; 2060 2061 if (dir != 'h') // equalize frame heights 2062 { 2063 // Compute maximum number of windows vertically in this frame. 2064 n = frame_minheight(topfr, NOWIN); 2065 // add one for the bottom window if it doesn't have a statusline 2066 if (row + height == cmdline_row && p_ls == 0) 2067 extra_sep = 1; 2068 else 2069 extra_sep = 0; 2070 totwincount = (n + extra_sep) / (p_wmh + 1); 2071 has_next_curwin = frame_has_win(topfr, next_curwin); 2072 2073 /* 2074 * Compute height for "next_curwin" window and room available for 2075 * other windows. 2076 * "m" is the minimal height when counting p_wh for "next_curwin". 2077 */ 2078 m = frame_minheight(topfr, next_curwin); 2079 room = height - m; 2080 if (room < 0) 2081 { 2082 // The room is less then 'winheight', use all space for the 2083 // current window. 2084 next_curwin_size = p_wh + room; 2085 room = 0; 2086 } 2087 else 2088 { 2089 next_curwin_size = -1; 2090 FOR_ALL_FRAMES(fr, topfr->fr_child) 2091 { 2092 // If 'winfixheight' set keep the window height if 2093 // possible. 2094 // Watch out for this window being the next_curwin. 2095 if (frame_fixed_height(fr)) 2096 { 2097 n = frame_minheight(fr, NOWIN); 2098 new_size = fr->fr_height; 2099 if (frame_has_win(fr, next_curwin)) 2100 { 2101 room += p_wh - p_wmh; 2102 next_curwin_size = 0; 2103 if (new_size < p_wh) 2104 new_size = p_wh; 2105 } 2106 else 2107 // These windows don't use up room. 2108 totwincount -= (n + (fr->fr_next == NULL 2109 ? extra_sep : 0)) / (p_wmh + 1); 2110 room -= new_size - n; 2111 if (room < 0) 2112 { 2113 new_size += room; 2114 room = 0; 2115 } 2116 fr->fr_newheight = new_size; 2117 } 2118 } 2119 if (next_curwin_size == -1) 2120 { 2121 if (!has_next_curwin) 2122 next_curwin_size = 0; 2123 else if (totwincount > 1 2124 && (room + (totwincount - 2)) 2125 / (totwincount - 1) > p_wh) 2126 { 2127 // can make all windows higher than 'winheight', 2128 // spread the room equally. 2129 next_curwin_size = (room + p_wh 2130 + (totwincount - 1) * p_wmh 2131 + (totwincount - 1)) / totwincount; 2132 room -= next_curwin_size - p_wh; 2133 } 2134 else 2135 next_curwin_size = p_wh; 2136 } 2137 } 2138 2139 if (has_next_curwin) 2140 --totwincount; // don't count curwin 2141 } 2142 2143 FOR_ALL_FRAMES(fr, topfr->fr_child) 2144 { 2145 wincount = 1; 2146 if (fr->fr_next == NULL) 2147 // last frame gets all that remains (avoid roundoff error) 2148 new_size = height; 2149 else if (dir == 'h') 2150 new_size = fr->fr_height; 2151 else if (frame_fixed_height(fr)) 2152 { 2153 new_size = fr->fr_newheight; 2154 wincount = 0; // doesn't count as a sizeable window 2155 } 2156 else 2157 { 2158 // Compute the maximum number of windows vert. in "fr". 2159 n = frame_minheight(fr, NOWIN); 2160 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 2161 / (p_wmh + 1); 2162 m = frame_minheight(fr, next_curwin); 2163 if (has_next_curwin) 2164 hnc = frame_has_win(fr, next_curwin); 2165 else 2166 hnc = FALSE; 2167 if (hnc) // don't count next_curwin 2168 --wincount; 2169 if (totwincount == 0) 2170 new_size = room; 2171 else 2172 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 2173 / totwincount; 2174 if (hnc) // add next_curwin size 2175 { 2176 next_curwin_size -= p_wh - (m - n); 2177 new_size += next_curwin_size; 2178 room -= new_size - next_curwin_size; 2179 } 2180 else 2181 room -= new_size; 2182 new_size += n; 2183 } 2184 // Skip frame that is full width when splitting or closing a 2185 // window, unless equalizing all frames. 2186 if (!current || dir != 'h' || topfr->fr_parent != NULL 2187 || (new_size != fr->fr_height) 2188 || frame_has_win(fr, next_curwin)) 2189 win_equal_rec(next_curwin, current, fr, dir, col, row, 2190 width, new_size); 2191 row += new_size; 2192 height -= new_size; 2193 totwincount -= wincount; 2194 } 2195 } 2196 } 2197 2198 #ifdef FEAT_JOB_CHANNEL 2199 static void 2200 leaving_window(win_T *win) 2201 { 2202 // Only matters for a prompt window. 2203 if (!bt_prompt(win->w_buffer)) 2204 return; 2205 2206 // When leaving a prompt window stop Insert mode and perhaps restart 2207 // it when entering that window again. 2208 win->w_buffer->b_prompt_insert = restart_edit; 2209 if (restart_edit != 0 && mode_displayed) 2210 clear_cmdline = TRUE; // unshow mode later 2211 restart_edit = NUL; 2212 2213 // When leaving the window (or closing the window) was done from a 2214 // callback we need to break out of the Insert mode loop and restart Insert 2215 // mode when entering the window again. 2216 if (State & INSERT) 2217 { 2218 stop_insert_mode = TRUE; 2219 if (win->w_buffer->b_prompt_insert == NUL) 2220 win->w_buffer->b_prompt_insert = 'A'; 2221 } 2222 } 2223 2224 static void 2225 entering_window(win_T *win) 2226 { 2227 // Only matters for a prompt window. 2228 if (!bt_prompt(win->w_buffer)) 2229 return; 2230 2231 // When switching to a prompt buffer that was in Insert mode, don't stop 2232 // Insert mode, it may have been set in leaving_window(). 2233 if (win->w_buffer->b_prompt_insert != NUL) 2234 stop_insert_mode = FALSE; 2235 2236 // When entering the prompt window restart Insert mode if we were in Insert 2237 // mode when we left it. 2238 restart_edit = win->w_buffer->b_prompt_insert; 2239 } 2240 #endif 2241 2242 /* 2243 * Close all windows for buffer "buf". 2244 */ 2245 void 2246 close_windows( 2247 buf_T *buf, 2248 int keep_curwin) // don't close "curwin" 2249 { 2250 win_T *wp; 2251 tabpage_T *tp, *nexttp; 2252 int h = tabline_height(); 2253 int count = tabpage_index(NULL); 2254 2255 ++RedrawingDisabled; 2256 2257 for (wp = firstwin; wp != NULL && !ONE_WINDOW; ) 2258 { 2259 if (wp->w_buffer == buf && (!keep_curwin || wp != curwin) 2260 && !(wp->w_closing || wp->w_buffer->b_locked > 0)) 2261 { 2262 if (win_close(wp, FALSE) == FAIL) 2263 // If closing the window fails give up, to avoid looping 2264 // forever. 2265 break; 2266 2267 // Start all over, autocommands may change the window layout. 2268 wp = firstwin; 2269 } 2270 else 2271 wp = wp->w_next; 2272 } 2273 2274 // Also check windows in other tab pages. 2275 for (tp = first_tabpage; tp != NULL; tp = nexttp) 2276 { 2277 nexttp = tp->tp_next; 2278 if (tp != curtab) 2279 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 2280 if (wp->w_buffer == buf 2281 && !(wp->w_closing || wp->w_buffer->b_locked > 0)) 2282 { 2283 win_close_othertab(wp, FALSE, tp); 2284 2285 // Start all over, the tab page may be closed and 2286 // autocommands may change the window layout. 2287 nexttp = first_tabpage; 2288 break; 2289 } 2290 } 2291 2292 --RedrawingDisabled; 2293 2294 if (count != tabpage_index(NULL)) 2295 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2296 2297 redraw_tabline = TRUE; 2298 if (h != tabline_height()) 2299 shell_new_rows(); 2300 } 2301 2302 /* 2303 * Return TRUE if the current window is the only window that exists (ignoring 2304 * "aucmd_win"). 2305 * Returns FALSE if there is a window, possibly in another tab page. 2306 */ 2307 static int 2308 last_window(void) 2309 { 2310 return (one_window() && first_tabpage->tp_next == NULL); 2311 } 2312 2313 /* 2314 * Return TRUE if there is only one window other than "aucmd_win" in the 2315 * current tab page. 2316 */ 2317 int 2318 one_window(void) 2319 { 2320 win_T *wp; 2321 int seen_one = FALSE; 2322 2323 FOR_ALL_WINDOWS(wp) 2324 { 2325 if (wp != aucmd_win) 2326 { 2327 if (seen_one) 2328 return FALSE; 2329 seen_one = TRUE; 2330 } 2331 } 2332 return TRUE; 2333 } 2334 2335 /* 2336 * Close the possibly last window in a tab page. 2337 * Returns TRUE when the window was closed already. 2338 */ 2339 static int 2340 close_last_window_tabpage( 2341 win_T *win, 2342 int free_buf, 2343 tabpage_T *prev_curtab) 2344 { 2345 if (ONE_WINDOW) 2346 { 2347 buf_T *old_curbuf = curbuf; 2348 2349 /* 2350 * Closing the last window in a tab page. First go to another tab 2351 * page and then close the window and the tab page. This avoids that 2352 * curwin and curtab are invalid while we are freeing memory, they may 2353 * be used in GUI events. 2354 * Don't trigger autocommands yet, they may use wrong values, so do 2355 * that below. 2356 */ 2357 goto_tabpage_tp(alt_tabpage(), FALSE, TRUE); 2358 redraw_tabline = TRUE; 2359 2360 // Safety check: Autocommands may have closed the window when jumping 2361 // to the other tab page. 2362 if (valid_tabpage(prev_curtab) && prev_curtab->tp_firstwin == win) 2363 { 2364 int h = tabline_height(); 2365 2366 win_close_othertab(win, free_buf, prev_curtab); 2367 if (h != tabline_height()) 2368 shell_new_rows(); 2369 } 2370 #ifdef FEAT_JOB_CHANNEL 2371 entering_window(curwin); 2372 #endif 2373 // Since goto_tabpage_tp above did not trigger *Enter autocommands, do 2374 // that now. 2375 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2376 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 2377 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 2378 if (old_curbuf != curbuf) 2379 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2380 return TRUE; 2381 } 2382 return FALSE; 2383 } 2384 2385 /* 2386 * Close the buffer of "win" and unload it if "action" is DOBUF_UNLOAD. 2387 * "action" can also be zero (do nothing) or DOBUF_WIPE. 2388 * "abort_if_last" is passed to close_buffer(): abort closing if all other 2389 * windows are closed. 2390 */ 2391 static void 2392 win_close_buffer(win_T *win, int action, int abort_if_last) 2393 { 2394 #ifdef FEAT_SYN_HL 2395 // Free independent synblock before the buffer is freed. 2396 if (win->w_buffer != NULL) 2397 reset_synblock(win); 2398 #endif 2399 2400 #ifdef FEAT_QUICKFIX 2401 // When the quickfix/location list window is closed, unlist the buffer. 2402 if (win->w_buffer != NULL && bt_quickfix(win->w_buffer)) 2403 win->w_buffer->b_p_bl = FALSE; 2404 #endif 2405 2406 // Close the link to the buffer. 2407 if (win->w_buffer != NULL) 2408 { 2409 bufref_T bufref; 2410 2411 set_bufref(&bufref, curbuf); 2412 win->w_closing = TRUE; 2413 close_buffer(win, win->w_buffer, action, abort_if_last, FALSE); 2414 if (win_valid_any_tab(win)) 2415 win->w_closing = FALSE; 2416 // Make sure curbuf is valid. It can become invalid if 'bufhidden' is 2417 // "wipe". 2418 if (!bufref_valid(&bufref)) 2419 curbuf = firstbuf; 2420 } 2421 } 2422 2423 /* 2424 * Close window "win". Only works for the current tab page. 2425 * If "free_buf" is TRUE related buffer may be unloaded. 2426 * 2427 * Called by :quit, :close, :xit, :wq and findtag(). 2428 * Returns FAIL when the window was not closed. 2429 */ 2430 int 2431 win_close(win_T *win, int free_buf) 2432 { 2433 win_T *wp; 2434 int other_buffer = FALSE; 2435 int close_curwin = FALSE; 2436 int dir; 2437 int help_window = FALSE; 2438 tabpage_T *prev_curtab = curtab; 2439 frame_T *win_frame = win->w_frame->fr_parent; 2440 #ifdef FEAT_DIFF 2441 int had_diffmode = win->w_p_diff; 2442 #endif 2443 2444 #if defined(FEAT_TERMINAL) && defined(FEAT_PROP_POPUP) 2445 // Can close a popup window with a terminal if the job has finished. 2446 if (may_close_term_popup() == OK) 2447 return OK; 2448 #endif 2449 if (ERROR_IF_ANY_POPUP_WINDOW) 2450 return FAIL; 2451 2452 if (last_window()) 2453 { 2454 emsg(_("E444: Cannot close last window")); 2455 return FAIL; 2456 } 2457 2458 if (win->w_closing || (win->w_buffer != NULL 2459 && win->w_buffer->b_locked > 0)) 2460 return FAIL; // window is already being closed 2461 if (win_unlisted(win)) 2462 { 2463 emsg(_("E813: Cannot close autocmd or popup window")); 2464 return FAIL; 2465 } 2466 if ((firstwin == aucmd_win || lastwin == aucmd_win) && one_window()) 2467 { 2468 emsg(_("E814: Cannot close window, only autocmd window would remain")); 2469 return FAIL; 2470 } 2471 2472 // When closing the last window in a tab page first go to another tab page 2473 // and then close the window and the tab page to avoid that curwin and 2474 // curtab are invalid while we are freeing memory. 2475 if (close_last_window_tabpage(win, free_buf, prev_curtab)) 2476 return FAIL; 2477 2478 // When closing the help window, try restoring a snapshot after closing 2479 // the window. Otherwise clear the snapshot, it's now invalid. 2480 if (bt_help(win->w_buffer)) 2481 help_window = TRUE; 2482 else 2483 clear_snapshot(curtab, SNAP_HELP_IDX); 2484 2485 if (win == curwin) 2486 { 2487 #ifdef FEAT_JOB_CHANNEL 2488 leaving_window(curwin); 2489 #endif 2490 /* 2491 * Guess which window is going to be the new current window. 2492 * This may change because of the autocommands (sigh). 2493 */ 2494 wp = frame2win(win_altframe(win, NULL)); 2495 2496 /* 2497 * Be careful: If autocommands delete the window or cause this window 2498 * to be the last one left, return now. 2499 */ 2500 if (wp->w_buffer != curbuf) 2501 { 2502 other_buffer = TRUE; 2503 win->w_closing = TRUE; 2504 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 2505 if (!win_valid(win)) 2506 return FAIL; 2507 win->w_closing = FALSE; 2508 if (last_window()) 2509 return FAIL; 2510 } 2511 win->w_closing = TRUE; 2512 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 2513 if (!win_valid(win)) 2514 return FAIL; 2515 win->w_closing = FALSE; 2516 if (last_window()) 2517 return FAIL; 2518 #ifdef FEAT_EVAL 2519 // autocmds may abort script processing 2520 if (aborting()) 2521 return FAIL; 2522 #endif 2523 } 2524 2525 #ifdef FEAT_GUI 2526 // Avoid trouble with scrollbars that are going to be deleted in 2527 // win_free(). 2528 if (gui.in_use) 2529 out_flush(); 2530 #endif 2531 2532 #ifdef FEAT_PROP_POPUP 2533 if (popup_win_closed(win) && !win_valid(win)) 2534 return FAIL; 2535 #endif 2536 win_close_buffer(win, free_buf ? DOBUF_UNLOAD : 0, TRUE); 2537 2538 if (only_one_window() && win_valid(win) && win->w_buffer == NULL 2539 && (last_window() || curtab != prev_curtab 2540 || close_last_window_tabpage(win, free_buf, prev_curtab))) 2541 { 2542 // Autocommands have closed all windows, quit now. Restore 2543 // curwin->w_buffer, otherwise writing viminfo may fail. 2544 if (curwin->w_buffer == NULL) 2545 curwin->w_buffer = curbuf; 2546 getout(0); 2547 } 2548 2549 // Autocommands may have moved to another tab page. 2550 if (curtab != prev_curtab && win_valid_any_tab(win) 2551 && win->w_buffer == NULL) 2552 { 2553 // Need to close the window anyway, since the buffer is NULL. 2554 win_close_othertab(win, FALSE, prev_curtab); 2555 return FAIL; 2556 } 2557 2558 // Autocommands may have closed the window already or closed the only 2559 // other window. 2560 if (!win_valid(win) || last_window() 2561 || close_last_window_tabpage(win, free_buf, prev_curtab)) 2562 return FAIL; 2563 2564 // Now we are really going to close the window. Disallow any autocommand 2565 // to split a window to avoid trouble. 2566 ++split_disallowed; 2567 2568 // Free the memory used for the window and get the window that received 2569 // the screen space. 2570 wp = win_free_mem(win, &dir, NULL); 2571 2572 // Make sure curwin isn't invalid. It can cause severe trouble when 2573 // printing an error message. For win_equal() curbuf needs to be valid 2574 // too. 2575 if (win == curwin) 2576 { 2577 curwin = wp; 2578 #ifdef FEAT_QUICKFIX 2579 if (wp->w_p_pvw || bt_quickfix(wp->w_buffer)) 2580 { 2581 /* 2582 * If the cursor goes to the preview or the quickfix window, try 2583 * finding another window to go to. 2584 */ 2585 for (;;) 2586 { 2587 if (wp->w_next == NULL) 2588 wp = firstwin; 2589 else 2590 wp = wp->w_next; 2591 if (wp == curwin) 2592 break; 2593 if (!wp->w_p_pvw && !bt_quickfix(wp->w_buffer)) 2594 { 2595 curwin = wp; 2596 break; 2597 } 2598 } 2599 } 2600 #endif 2601 curbuf = curwin->w_buffer; 2602 close_curwin = TRUE; 2603 2604 // The cursor position may be invalid if the buffer changed after last 2605 // using the window. 2606 check_cursor(); 2607 } 2608 if (p_ea && (*p_ead == 'b' || *p_ead == dir)) 2609 // If the frame of the closed window contains the new current window, 2610 // only resize that frame. Otherwise resize all windows. 2611 win_equal(curwin, curwin->w_frame->fr_parent == win_frame, dir); 2612 else 2613 win_comp_pos(); 2614 if (close_curwin) 2615 { 2616 win_enter_ext(wp, FALSE, TRUE, FALSE, TRUE, TRUE); 2617 if (other_buffer) 2618 // careful: after this wp and win may be invalid! 2619 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2620 } 2621 2622 --split_disallowed; 2623 2624 /* 2625 * If last window has a status line now and we don't want one, 2626 * remove the status line. 2627 */ 2628 last_status(FALSE); 2629 2630 // After closing the help window, try restoring the window layout from 2631 // before it was opened. 2632 if (help_window) 2633 restore_snapshot(SNAP_HELP_IDX, close_curwin); 2634 2635 #ifdef FEAT_DIFF 2636 // If the window had 'diff' set and now there is only one window left in 2637 // the tab page with 'diff' set, and "closeoff" is in 'diffopt', then 2638 // execute ":diffoff!". 2639 if (diffopt_closeoff() && had_diffmode && curtab == prev_curtab) 2640 { 2641 int diffcount = 0; 2642 win_T *dwin; 2643 2644 FOR_ALL_WINDOWS(dwin) 2645 if (dwin->w_p_diff) 2646 ++diffcount; 2647 if (diffcount == 1) 2648 do_cmdline_cmd((char_u *)"diffoff!"); 2649 } 2650 #endif 2651 2652 #if defined(FEAT_GUI) 2653 // When 'guioptions' includes 'L' or 'R' may have to remove scrollbars. 2654 if (gui.in_use && !win_hasvertsplit()) 2655 gui_init_which_components(NULL); 2656 #endif 2657 2658 redraw_all_later(NOT_VALID); 2659 return OK; 2660 } 2661 2662 /* 2663 * Close window "win" in tab page "tp", which is not the current tab page. 2664 * This may be the last window in that tab page and result in closing the tab, 2665 * thus "tp" may become invalid! 2666 * Caller must check if buffer is hidden and whether the tabline needs to be 2667 * updated. 2668 */ 2669 void 2670 win_close_othertab(win_T *win, int free_buf, tabpage_T *tp) 2671 { 2672 win_T *wp; 2673 int dir; 2674 tabpage_T *ptp = NULL; 2675 int free_tp = FALSE; 2676 2677 // Get here with win->w_buffer == NULL when win_close() detects the tab 2678 // page changed. 2679 if (win->w_closing || (win->w_buffer != NULL 2680 && win->w_buffer->b_locked > 0)) 2681 return; // window is already being closed 2682 2683 if (win->w_buffer != NULL) 2684 // Close the link to the buffer. 2685 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, 2686 FALSE, FALSE); 2687 2688 // Careful: Autocommands may have closed the tab page or made it the 2689 // current tab page. 2690 for (ptp = first_tabpage; ptp != NULL && ptp != tp; ptp = ptp->tp_next) 2691 ; 2692 if (ptp == NULL || tp == curtab) 2693 return; 2694 2695 // Autocommands may have closed the window already. 2696 for (wp = tp->tp_firstwin; wp != NULL && wp != win; wp = wp->w_next) 2697 ; 2698 if (wp == NULL) 2699 return; 2700 2701 // When closing the last window in a tab page remove the tab page. 2702 if (tp->tp_firstwin == tp->tp_lastwin) 2703 { 2704 if (tp == first_tabpage) 2705 first_tabpage = tp->tp_next; 2706 else 2707 { 2708 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tp; 2709 ptp = ptp->tp_next) 2710 ; 2711 if (ptp == NULL) 2712 { 2713 internal_error("win_close_othertab()"); 2714 return; 2715 } 2716 ptp->tp_next = tp->tp_next; 2717 } 2718 free_tp = TRUE; 2719 } 2720 2721 // Free the memory used for the window. 2722 win_free_mem(win, &dir, tp); 2723 2724 if (free_tp) 2725 free_tabpage(tp); 2726 } 2727 2728 /* 2729 * Free the memory used for a window. 2730 * Returns a pointer to the window that got the freed up space. 2731 */ 2732 static win_T * 2733 win_free_mem( 2734 win_T *win, 2735 int *dirp, // set to 'v' or 'h' for direction if 'ea' 2736 tabpage_T *tp) // tab page "win" is in, NULL for current 2737 { 2738 frame_T *frp; 2739 win_T *wp; 2740 2741 // Remove the window and its frame from the tree of frames. 2742 frp = win->w_frame; 2743 wp = winframe_remove(win, dirp, tp); 2744 vim_free(frp); 2745 win_free(win, tp); 2746 2747 // When deleting the current window of another tab page select a new 2748 // current window. 2749 if (tp != NULL && win == tp->tp_curwin) 2750 tp->tp_curwin = wp; 2751 2752 return wp; 2753 } 2754 2755 #if defined(EXITFREE) || defined(PROTO) 2756 void 2757 win_free_all(void) 2758 { 2759 int dummy; 2760 2761 while (first_tabpage->tp_next != NULL) 2762 tabpage_close(TRUE); 2763 2764 if (aucmd_win != NULL) 2765 { 2766 (void)win_free_mem(aucmd_win, &dummy, NULL); 2767 aucmd_win = NULL; 2768 } 2769 # ifdef FEAT_PROP_POPUP 2770 close_all_popups(); 2771 # endif 2772 2773 while (firstwin != NULL) 2774 (void)win_free_mem(firstwin, &dummy, NULL); 2775 2776 // No window should be used after this. Set curwin to NULL to crash 2777 // instead of using freed memory. 2778 curwin = NULL; 2779 } 2780 #endif 2781 2782 /* 2783 * Remove a window and its frame from the tree of frames. 2784 * Returns a pointer to the window that got the freed up space. 2785 */ 2786 win_T * 2787 winframe_remove( 2788 win_T *win, 2789 int *dirp UNUSED, // set to 'v' or 'h' for direction if 'ea' 2790 tabpage_T *tp) // tab page "win" is in, NULL for current 2791 { 2792 frame_T *frp, *frp2, *frp3; 2793 frame_T *frp_close = win->w_frame; 2794 win_T *wp; 2795 2796 /* 2797 * If there is only one window there is nothing to remove. 2798 */ 2799 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 2800 return NULL; 2801 2802 /* 2803 * Remove the window from its frame. 2804 */ 2805 frp2 = win_altframe(win, tp); 2806 wp = frame2win(frp2); 2807 2808 // Remove this frame from the list of frames. 2809 frame_remove(frp_close); 2810 2811 if (frp_close->fr_parent->fr_layout == FR_COL) 2812 { 2813 // When 'winfixheight' is set, try to find another frame in the column 2814 // (as close to the closed frame as possible) to distribute the height 2815 // to. 2816 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfh) 2817 { 2818 frp = frp_close->fr_prev; 2819 frp3 = frp_close->fr_next; 2820 while (frp != NULL || frp3 != NULL) 2821 { 2822 if (frp != NULL) 2823 { 2824 if (!frame_fixed_height(frp)) 2825 { 2826 frp2 = frp; 2827 wp = frame2win(frp2); 2828 break; 2829 } 2830 frp = frp->fr_prev; 2831 } 2832 if (frp3 != NULL) 2833 { 2834 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfh) 2835 { 2836 frp2 = frp3; 2837 wp = frp3->fr_win; 2838 break; 2839 } 2840 frp3 = frp3->fr_next; 2841 } 2842 } 2843 } 2844 frame_new_height(frp2, frp2->fr_height + frp_close->fr_height, 2845 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2846 *dirp = 'v'; 2847 } 2848 else 2849 { 2850 // When 'winfixwidth' is set, try to find another frame in the column 2851 // (as close to the closed frame as possible) to distribute the width 2852 // to. 2853 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfw) 2854 { 2855 frp = frp_close->fr_prev; 2856 frp3 = frp_close->fr_next; 2857 while (frp != NULL || frp3 != NULL) 2858 { 2859 if (frp != NULL) 2860 { 2861 if (!frame_fixed_width(frp)) 2862 { 2863 frp2 = frp; 2864 wp = frame2win(frp2); 2865 break; 2866 } 2867 frp = frp->fr_prev; 2868 } 2869 if (frp3 != NULL) 2870 { 2871 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfw) 2872 { 2873 frp2 = frp3; 2874 wp = frp3->fr_win; 2875 break; 2876 } 2877 frp3 = frp3->fr_next; 2878 } 2879 } 2880 } 2881 frame_new_width(frp2, frp2->fr_width + frp_close->fr_width, 2882 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2883 *dirp = 'h'; 2884 } 2885 2886 // If rows/columns go to a window below/right its positions need to be 2887 // updated. Can only be done after the sizes have been updated. 2888 if (frp2 == frp_close->fr_next) 2889 { 2890 int row = win->w_winrow; 2891 int col = win->w_wincol; 2892 2893 frame_comp_pos(frp2, &row, &col); 2894 } 2895 2896 if (frp2->fr_next == NULL && frp2->fr_prev == NULL) 2897 { 2898 // There is no other frame in this list, move its info to the parent 2899 // and remove it. 2900 frp2->fr_parent->fr_layout = frp2->fr_layout; 2901 frp2->fr_parent->fr_child = frp2->fr_child; 2902 FOR_ALL_FRAMES(frp, frp2->fr_child) 2903 frp->fr_parent = frp2->fr_parent; 2904 frp2->fr_parent->fr_win = frp2->fr_win; 2905 if (frp2->fr_win != NULL) 2906 frp2->fr_win->w_frame = frp2->fr_parent; 2907 frp = frp2->fr_parent; 2908 if (topframe->fr_child == frp2) 2909 topframe->fr_child = frp; 2910 vim_free(frp2); 2911 2912 frp2 = frp->fr_parent; 2913 if (frp2 != NULL && frp2->fr_layout == frp->fr_layout) 2914 { 2915 // The frame above the parent has the same layout, have to merge 2916 // the frames into this list. 2917 if (frp2->fr_child == frp) 2918 frp2->fr_child = frp->fr_child; 2919 frp->fr_child->fr_prev = frp->fr_prev; 2920 if (frp->fr_prev != NULL) 2921 frp->fr_prev->fr_next = frp->fr_child; 2922 for (frp3 = frp->fr_child; ; frp3 = frp3->fr_next) 2923 { 2924 frp3->fr_parent = frp2; 2925 if (frp3->fr_next == NULL) 2926 { 2927 frp3->fr_next = frp->fr_next; 2928 if (frp->fr_next != NULL) 2929 frp->fr_next->fr_prev = frp3; 2930 break; 2931 } 2932 } 2933 if (topframe->fr_child == frp) 2934 topframe->fr_child = frp2; 2935 vim_free(frp); 2936 } 2937 } 2938 2939 return wp; 2940 } 2941 2942 /* 2943 * Return a pointer to the frame that will receive the empty screen space that 2944 * is left over after "win" is closed. 2945 * 2946 * If 'splitbelow' or 'splitright' is set, the space goes above or to the left 2947 * by default. Otherwise, the free space goes below or to the right. The 2948 * result is that opening a window and then immediately closing it will 2949 * preserve the initial window layout. The 'wfh' and 'wfw' settings are 2950 * respected when possible. 2951 */ 2952 static frame_T * 2953 win_altframe( 2954 win_T *win, 2955 tabpage_T *tp) // tab page "win" is in, NULL for current 2956 { 2957 frame_T *frp; 2958 frame_T *other_fr, *target_fr; 2959 2960 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 2961 return alt_tabpage()->tp_curwin->w_frame; 2962 2963 frp = win->w_frame; 2964 2965 if (frp->fr_prev == NULL) 2966 return frp->fr_next; 2967 if (frp->fr_next == NULL) 2968 return frp->fr_prev; 2969 2970 // By default the next window will get the space that was abandoned by this 2971 // window 2972 target_fr = frp->fr_next; 2973 other_fr = frp->fr_prev; 2974 2975 // If this is part of a column of windows and 'splitbelow' is true then the 2976 // previous window will get the space. 2977 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_COL && p_sb) 2978 { 2979 target_fr = frp->fr_prev; 2980 other_fr = frp->fr_next; 2981 } 2982 2983 // If this is part of a row of windows, and 'splitright' is true then the 2984 // previous window will get the space. 2985 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW && p_spr) 2986 { 2987 target_fr = frp->fr_prev; 2988 other_fr = frp->fr_next; 2989 } 2990 2991 // If 'wfh' or 'wfw' is set for the target and not for the alternate 2992 // window, reverse the selection. 2993 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW) 2994 { 2995 if (frame_fixed_width(target_fr) && !frame_fixed_width(other_fr)) 2996 target_fr = other_fr; 2997 } 2998 else 2999 { 3000 if (frame_fixed_height(target_fr) && !frame_fixed_height(other_fr)) 3001 target_fr = other_fr; 3002 } 3003 3004 return target_fr; 3005 } 3006 3007 /* 3008 * Return the tabpage that will be used if the current one is closed. 3009 */ 3010 static tabpage_T * 3011 alt_tabpage(void) 3012 { 3013 tabpage_T *tp; 3014 3015 // Use the next tab page if possible. 3016 if (curtab->tp_next != NULL) 3017 return curtab->tp_next; 3018 3019 // Find the last but one tab page. 3020 for (tp = first_tabpage; tp->tp_next != curtab; tp = tp->tp_next) 3021 ; 3022 return tp; 3023 } 3024 3025 /* 3026 * Find the left-upper window in frame "frp". 3027 */ 3028 static win_T * 3029 frame2win(frame_T *frp) 3030 { 3031 while (frp->fr_win == NULL) 3032 frp = frp->fr_child; 3033 return frp->fr_win; 3034 } 3035 3036 /* 3037 * Return TRUE if frame "frp" contains window "wp". 3038 */ 3039 static int 3040 frame_has_win(frame_T *frp, win_T *wp) 3041 { 3042 frame_T *p; 3043 3044 if (frp->fr_layout == FR_LEAF) 3045 return frp->fr_win == wp; 3046 3047 FOR_ALL_FRAMES(p, frp->fr_child) 3048 if (frame_has_win(p, wp)) 3049 return TRUE; 3050 return FALSE; 3051 } 3052 3053 /* 3054 * Set a new height for a frame. Recursively sets the height for contained 3055 * frames and windows. Caller must take care of positions. 3056 */ 3057 static void 3058 frame_new_height( 3059 frame_T *topfrp, 3060 int height, 3061 int topfirst, // resize topmost contained frame first 3062 int wfh) // obey 'winfixheight' when there is a choice; 3063 // may cause the height not to be set 3064 { 3065 frame_T *frp; 3066 int extra_lines; 3067 int h; 3068 3069 if (topfrp->fr_win != NULL) 3070 { 3071 // Simple case: just one window. 3072 win_new_height(topfrp->fr_win, 3073 height - topfrp->fr_win->w_status_height 3074 - WINBAR_HEIGHT(topfrp->fr_win)); 3075 } 3076 else if (topfrp->fr_layout == FR_ROW) 3077 { 3078 do 3079 { 3080 // All frames in this row get the same new height. 3081 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3082 { 3083 frame_new_height(frp, height, topfirst, wfh); 3084 if (frp->fr_height > height) 3085 { 3086 // Could not fit the windows, make the whole row higher. 3087 height = frp->fr_height; 3088 break; 3089 } 3090 } 3091 } 3092 while (frp != NULL); 3093 } 3094 else // fr_layout == FR_COL 3095 { 3096 // Complicated case: Resize a column of frames. Resize the bottom 3097 // frame first, frames above that when needed. 3098 3099 frp = topfrp->fr_child; 3100 if (wfh) 3101 // Advance past frames with one window with 'wfh' set. 3102 while (frame_fixed_height(frp)) 3103 { 3104 frp = frp->fr_next; 3105 if (frp == NULL) 3106 return; // no frame without 'wfh', give up 3107 } 3108 if (!topfirst) 3109 { 3110 // Find the bottom frame of this column 3111 while (frp->fr_next != NULL) 3112 frp = frp->fr_next; 3113 if (wfh) 3114 // Advance back for frames with one window with 'wfh' set. 3115 while (frame_fixed_height(frp)) 3116 frp = frp->fr_prev; 3117 } 3118 3119 extra_lines = height - topfrp->fr_height; 3120 if (extra_lines < 0) 3121 { 3122 // reduce height of contained frames, bottom or top frame first 3123 while (frp != NULL) 3124 { 3125 h = frame_minheight(frp, NULL); 3126 if (frp->fr_height + extra_lines < h) 3127 { 3128 extra_lines += frp->fr_height - h; 3129 frame_new_height(frp, h, topfirst, wfh); 3130 } 3131 else 3132 { 3133 frame_new_height(frp, frp->fr_height + extra_lines, 3134 topfirst, wfh); 3135 break; 3136 } 3137 if (topfirst) 3138 { 3139 do 3140 frp = frp->fr_next; 3141 while (wfh && frp != NULL && frame_fixed_height(frp)); 3142 } 3143 else 3144 { 3145 do 3146 frp = frp->fr_prev; 3147 while (wfh && frp != NULL && frame_fixed_height(frp)); 3148 } 3149 // Increase "height" if we could not reduce enough frames. 3150 if (frp == NULL) 3151 height -= extra_lines; 3152 } 3153 } 3154 else if (extra_lines > 0) 3155 { 3156 // increase height of bottom or top frame 3157 frame_new_height(frp, frp->fr_height + extra_lines, topfirst, wfh); 3158 } 3159 } 3160 topfrp->fr_height = height; 3161 } 3162 3163 /* 3164 * Return TRUE if height of frame "frp" should not be changed because of 3165 * the 'winfixheight' option. 3166 */ 3167 static int 3168 frame_fixed_height(frame_T *frp) 3169 { 3170 // frame with one window: fixed height if 'winfixheight' set. 3171 if (frp->fr_win != NULL) 3172 return frp->fr_win->w_p_wfh; 3173 3174 if (frp->fr_layout == FR_ROW) 3175 { 3176 // The frame is fixed height if one of the frames in the row is fixed 3177 // height. 3178 FOR_ALL_FRAMES(frp, frp->fr_child) 3179 if (frame_fixed_height(frp)) 3180 return TRUE; 3181 return FALSE; 3182 } 3183 3184 // frp->fr_layout == FR_COL: The frame is fixed height if all of the 3185 // frames in the row are fixed height. 3186 FOR_ALL_FRAMES(frp, frp->fr_child) 3187 if (!frame_fixed_height(frp)) 3188 return FALSE; 3189 return TRUE; 3190 } 3191 3192 /* 3193 * Return TRUE if width of frame "frp" should not be changed because of 3194 * the 'winfixwidth' option. 3195 */ 3196 static int 3197 frame_fixed_width(frame_T *frp) 3198 { 3199 // frame with one window: fixed width if 'winfixwidth' set. 3200 if (frp->fr_win != NULL) 3201 return frp->fr_win->w_p_wfw; 3202 3203 if (frp->fr_layout == FR_COL) 3204 { 3205 // The frame is fixed width if one of the frames in the row is fixed 3206 // width. 3207 FOR_ALL_FRAMES(frp, frp->fr_child) 3208 if (frame_fixed_width(frp)) 3209 return TRUE; 3210 return FALSE; 3211 } 3212 3213 // frp->fr_layout == FR_ROW: The frame is fixed width if all of the 3214 // frames in the row are fixed width. 3215 FOR_ALL_FRAMES(frp, frp->fr_child) 3216 if (!frame_fixed_width(frp)) 3217 return FALSE; 3218 return TRUE; 3219 } 3220 3221 /* 3222 * Add a status line to windows at the bottom of "frp". 3223 * Note: Does not check if there is room! 3224 */ 3225 static void 3226 frame_add_statusline(frame_T *frp) 3227 { 3228 win_T *wp; 3229 3230 if (frp->fr_layout == FR_LEAF) 3231 { 3232 wp = frp->fr_win; 3233 if (wp->w_status_height == 0) 3234 { 3235 if (wp->w_height > 0) // don't make it negative 3236 --wp->w_height; 3237 wp->w_status_height = STATUS_HEIGHT; 3238 } 3239 } 3240 else if (frp->fr_layout == FR_ROW) 3241 { 3242 // Handle all the frames in the row. 3243 FOR_ALL_FRAMES(frp, frp->fr_child) 3244 frame_add_statusline(frp); 3245 } 3246 else // frp->fr_layout == FR_COL 3247 { 3248 // Only need to handle the last frame in the column. 3249 for (frp = frp->fr_child; frp->fr_next != NULL; frp = frp->fr_next) 3250 ; 3251 frame_add_statusline(frp); 3252 } 3253 } 3254 3255 /* 3256 * Set width of a frame. Handles recursively going through contained frames. 3257 * May remove separator line for windows at the right side (for win_close()). 3258 */ 3259 static void 3260 frame_new_width( 3261 frame_T *topfrp, 3262 int width, 3263 int leftfirst, // resize leftmost contained frame first 3264 int wfw) // obey 'winfixwidth' when there is a choice; 3265 // may cause the width not to be set 3266 { 3267 frame_T *frp; 3268 int extra_cols; 3269 int w; 3270 win_T *wp; 3271 3272 if (topfrp->fr_layout == FR_LEAF) 3273 { 3274 // Simple case: just one window. 3275 wp = topfrp->fr_win; 3276 // Find out if there are any windows right of this one. 3277 for (frp = topfrp; frp->fr_parent != NULL; frp = frp->fr_parent) 3278 if (frp->fr_parent->fr_layout == FR_ROW && frp->fr_next != NULL) 3279 break; 3280 if (frp->fr_parent == NULL) 3281 wp->w_vsep_width = 0; 3282 win_new_width(wp, width - wp->w_vsep_width); 3283 } 3284 else if (topfrp->fr_layout == FR_COL) 3285 { 3286 do 3287 { 3288 // All frames in this column get the same new width. 3289 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3290 { 3291 frame_new_width(frp, width, leftfirst, wfw); 3292 if (frp->fr_width > width) 3293 { 3294 // Could not fit the windows, make whole column wider. 3295 width = frp->fr_width; 3296 break; 3297 } 3298 } 3299 } while (frp != NULL); 3300 } 3301 else // fr_layout == FR_ROW 3302 { 3303 // Complicated case: Resize a row of frames. Resize the rightmost 3304 // frame first, frames left of it when needed. 3305 3306 frp = topfrp->fr_child; 3307 if (wfw) 3308 // Advance past frames with one window with 'wfw' set. 3309 while (frame_fixed_width(frp)) 3310 { 3311 frp = frp->fr_next; 3312 if (frp == NULL) 3313 return; // no frame without 'wfw', give up 3314 } 3315 if (!leftfirst) 3316 { 3317 // Find the rightmost frame of this row 3318 while (frp->fr_next != NULL) 3319 frp = frp->fr_next; 3320 if (wfw) 3321 // Advance back for frames with one window with 'wfw' set. 3322 while (frame_fixed_width(frp)) 3323 frp = frp->fr_prev; 3324 } 3325 3326 extra_cols = width - topfrp->fr_width; 3327 if (extra_cols < 0) 3328 { 3329 // reduce frame width, rightmost frame first 3330 while (frp != NULL) 3331 { 3332 w = frame_minwidth(frp, NULL); 3333 if (frp->fr_width + extra_cols < w) 3334 { 3335 extra_cols += frp->fr_width - w; 3336 frame_new_width(frp, w, leftfirst, wfw); 3337 } 3338 else 3339 { 3340 frame_new_width(frp, frp->fr_width + extra_cols, 3341 leftfirst, wfw); 3342 break; 3343 } 3344 if (leftfirst) 3345 { 3346 do 3347 frp = frp->fr_next; 3348 while (wfw && frp != NULL && frame_fixed_width(frp)); 3349 } 3350 else 3351 { 3352 do 3353 frp = frp->fr_prev; 3354 while (wfw && frp != NULL && frame_fixed_width(frp)); 3355 } 3356 // Increase "width" if we could not reduce enough frames. 3357 if (frp == NULL) 3358 width -= extra_cols; 3359 } 3360 } 3361 else if (extra_cols > 0) 3362 { 3363 // increase width of rightmost frame 3364 frame_new_width(frp, frp->fr_width + extra_cols, leftfirst, wfw); 3365 } 3366 } 3367 topfrp->fr_width = width; 3368 } 3369 3370 /* 3371 * Add the vertical separator to windows at the right side of "frp". 3372 * Note: Does not check if there is room! 3373 */ 3374 static void 3375 frame_add_vsep(frame_T *frp) 3376 { 3377 win_T *wp; 3378 3379 if (frp->fr_layout == FR_LEAF) 3380 { 3381 wp = frp->fr_win; 3382 if (wp->w_vsep_width == 0) 3383 { 3384 if (wp->w_width > 0) // don't make it negative 3385 --wp->w_width; 3386 wp->w_vsep_width = 1; 3387 } 3388 } 3389 else if (frp->fr_layout == FR_COL) 3390 { 3391 // Handle all the frames in the column. 3392 FOR_ALL_FRAMES(frp, frp->fr_child) 3393 frame_add_vsep(frp); 3394 } 3395 else // frp->fr_layout == FR_ROW 3396 { 3397 // Only need to handle the last frame in the row. 3398 frp = frp->fr_child; 3399 while (frp->fr_next != NULL) 3400 frp = frp->fr_next; 3401 frame_add_vsep(frp); 3402 } 3403 } 3404 3405 /* 3406 * Set frame width from the window it contains. 3407 */ 3408 static void 3409 frame_fix_width(win_T *wp) 3410 { 3411 wp->w_frame->fr_width = wp->w_width + wp->w_vsep_width; 3412 } 3413 3414 /* 3415 * Set frame height from the window it contains. 3416 */ 3417 static void 3418 frame_fix_height(win_T *wp) 3419 { 3420 wp->w_frame->fr_height = VISIBLE_HEIGHT(wp) + wp->w_status_height; 3421 } 3422 3423 /* 3424 * Compute the minimal height for frame "topfrp". 3425 * Uses the 'winminheight' option. 3426 * When "next_curwin" isn't NULL, use p_wh for this window. 3427 * When "next_curwin" is NOWIN, don't use at least one line for the current 3428 * window. 3429 */ 3430 static int 3431 frame_minheight(frame_T *topfrp, win_T *next_curwin) 3432 { 3433 frame_T *frp; 3434 int m; 3435 int n; 3436 3437 if (topfrp->fr_win != NULL) 3438 { 3439 if (topfrp->fr_win == next_curwin) 3440 m = p_wh + topfrp->fr_win->w_status_height; 3441 else 3442 { 3443 // window: minimal height of the window plus status line 3444 m = p_wmh + topfrp->fr_win->w_status_height; 3445 if (topfrp->fr_win == curwin && next_curwin == NULL) 3446 { 3447 // Current window is minimal one line high and WinBar is 3448 // visible. 3449 if (p_wmh == 0) 3450 ++m; 3451 m += WINBAR_HEIGHT(curwin); 3452 } 3453 } 3454 } 3455 else if (topfrp->fr_layout == FR_ROW) 3456 { 3457 // get the minimal height from each frame in this row 3458 m = 0; 3459 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3460 { 3461 n = frame_minheight(frp, next_curwin); 3462 if (n > m) 3463 m = n; 3464 } 3465 } 3466 else 3467 { 3468 // Add up the minimal heights for all frames in this column. 3469 m = 0; 3470 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3471 m += frame_minheight(frp, next_curwin); 3472 } 3473 3474 return m; 3475 } 3476 3477 /* 3478 * Compute the minimal width for frame "topfrp". 3479 * When "next_curwin" isn't NULL, use p_wiw for this window. 3480 * When "next_curwin" is NOWIN, don't use at least one column for the current 3481 * window. 3482 */ 3483 static int 3484 frame_minwidth( 3485 frame_T *topfrp, 3486 win_T *next_curwin) // use p_wh and p_wiw for next_curwin 3487 { 3488 frame_T *frp; 3489 int m, n; 3490 3491 if (topfrp->fr_win != NULL) 3492 { 3493 if (topfrp->fr_win == next_curwin) 3494 m = p_wiw + topfrp->fr_win->w_vsep_width; 3495 else 3496 { 3497 // window: minimal width of the window plus separator column 3498 m = p_wmw + topfrp->fr_win->w_vsep_width; 3499 // Current window is minimal one column wide 3500 if (p_wmw == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3501 ++m; 3502 } 3503 } 3504 else if (topfrp->fr_layout == FR_COL) 3505 { 3506 // get the minimal width from each frame in this column 3507 m = 0; 3508 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3509 { 3510 n = frame_minwidth(frp, next_curwin); 3511 if (n > m) 3512 m = n; 3513 } 3514 } 3515 else 3516 { 3517 // Add up the minimal widths for all frames in this row. 3518 m = 0; 3519 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3520 m += frame_minwidth(frp, next_curwin); 3521 } 3522 3523 return m; 3524 } 3525 3526 3527 /* 3528 * Try to close all windows except current one. 3529 * Buffers in the other windows become hidden if 'hidden' is set, or '!' is 3530 * used and the buffer was modified. 3531 * 3532 * Used by ":bdel" and ":only". 3533 */ 3534 void 3535 close_others( 3536 int message, 3537 int forceit) // always hide all other windows 3538 { 3539 win_T *wp; 3540 win_T *nextwp; 3541 int r; 3542 3543 if (one_window()) 3544 { 3545 if (message && !autocmd_busy) 3546 msg(_(m_onlyone)); 3547 return; 3548 } 3549 3550 // Be very careful here: autocommands may change the window layout. 3551 for (wp = firstwin; win_valid(wp); wp = nextwp) 3552 { 3553 nextwp = wp->w_next; 3554 if (wp != curwin) // don't close current window 3555 { 3556 3557 // Check if it's allowed to abandon this window 3558 r = can_abandon(wp->w_buffer, forceit); 3559 if (!win_valid(wp)) // autocommands messed wp up 3560 { 3561 nextwp = firstwin; 3562 continue; 3563 } 3564 if (!r) 3565 { 3566 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 3567 if (message && (p_confirm || cmdmod.confirm) && p_write) 3568 { 3569 dialog_changed(wp->w_buffer, FALSE); 3570 if (!win_valid(wp)) // autocommands messed wp up 3571 { 3572 nextwp = firstwin; 3573 continue; 3574 } 3575 } 3576 if (bufIsChanged(wp->w_buffer)) 3577 #endif 3578 continue; 3579 } 3580 win_close(wp, !buf_hide(wp->w_buffer) 3581 && !bufIsChanged(wp->w_buffer)); 3582 } 3583 } 3584 3585 if (message && !ONE_WINDOW) 3586 emsg(_("E445: Other window contains changes")); 3587 } 3588 3589 static void 3590 win_init_empty(win_T *wp) 3591 { 3592 redraw_win_later(wp, NOT_VALID); 3593 wp->w_lines_valid = 0; 3594 wp->w_cursor.lnum = 1; 3595 wp->w_curswant = wp->w_cursor.col = 0; 3596 wp->w_cursor.coladd = 0; 3597 wp->w_pcmark.lnum = 1; // pcmark not cleared but set to line 1 3598 wp->w_pcmark.col = 0; 3599 wp->w_prev_pcmark.lnum = 0; 3600 wp->w_prev_pcmark.col = 0; 3601 wp->w_topline = 1; 3602 #ifdef FEAT_DIFF 3603 wp->w_topfill = 0; 3604 #endif 3605 wp->w_botline = 2; 3606 #if defined(FEAT_SYN_HL) || defined(FEAT_SPELL) 3607 wp->w_s = &wp->w_buffer->b_s; 3608 #endif 3609 } 3610 3611 /* 3612 * Init the current window "curwin". 3613 * Called when a new file is being edited. 3614 */ 3615 void 3616 curwin_init(void) 3617 { 3618 win_init_empty(curwin); 3619 } 3620 3621 /* 3622 * Allocate the first window and put an empty buffer in it. 3623 * Called from main(). 3624 * Return FAIL when something goes wrong (out of memory). 3625 */ 3626 int 3627 win_alloc_first(void) 3628 { 3629 if (win_alloc_firstwin(NULL) == FAIL) 3630 return FAIL; 3631 3632 first_tabpage = alloc_tabpage(); 3633 if (first_tabpage == NULL) 3634 return FAIL; 3635 first_tabpage->tp_topframe = topframe; 3636 curtab = first_tabpage; 3637 curtab->tp_firstwin = firstwin; 3638 curtab->tp_lastwin = lastwin; 3639 curtab->tp_curwin = curwin; 3640 3641 return OK; 3642 } 3643 3644 /* 3645 * Allocate and init a window that is not a regular window. 3646 * This can only be done after the first window is fully initialized, thus it 3647 * can't be in win_alloc_first(). 3648 */ 3649 win_T * 3650 win_alloc_popup_win(void) 3651 { 3652 win_T *wp; 3653 3654 wp = win_alloc(NULL, TRUE); 3655 if (wp != NULL) 3656 { 3657 // We need to initialize options with something, using the current 3658 // window makes most sense. 3659 win_init_some(wp, curwin); 3660 3661 RESET_BINDING(wp); 3662 new_frame(wp); 3663 } 3664 return wp; 3665 } 3666 3667 /* 3668 * Initialize window "wp" to display buffer "buf". 3669 */ 3670 void 3671 win_init_popup_win(win_T *wp, buf_T *buf) 3672 { 3673 wp->w_buffer = buf; 3674 ++buf->b_nwindows; 3675 win_init_empty(wp); // set cursor and topline to safe values 3676 3677 // Make sure w_localdir and globaldir are NULL to avoid a chdir() in 3678 // win_enter_ext(). 3679 VIM_CLEAR(wp->w_localdir); 3680 } 3681 3682 /* 3683 * Allocate the first window or the first window in a new tab page. 3684 * When "oldwin" is NULL create an empty buffer for it. 3685 * When "oldwin" is not NULL copy info from it to the new window. 3686 * Return FAIL when something goes wrong (out of memory). 3687 */ 3688 static int 3689 win_alloc_firstwin(win_T *oldwin) 3690 { 3691 curwin = win_alloc(NULL, FALSE); 3692 if (oldwin == NULL) 3693 { 3694 // Very first window, need to create an empty buffer for it and 3695 // initialize from scratch. 3696 curbuf = buflist_new(NULL, NULL, 1L, BLN_LISTED); 3697 if (curwin == NULL || curbuf == NULL) 3698 return FAIL; 3699 curwin->w_buffer = curbuf; 3700 #ifdef FEAT_SYN_HL 3701 curwin->w_s = &(curbuf->b_s); 3702 #endif 3703 curbuf->b_nwindows = 1; // there is one window 3704 curwin->w_alist = &global_alist; 3705 curwin_init(); // init current window 3706 } 3707 else 3708 { 3709 // First window in new tab page, initialize it from "oldwin". 3710 win_init(curwin, oldwin, 0); 3711 3712 // We don't want cursor- and scroll-binding in the first window. 3713 RESET_BINDING(curwin); 3714 } 3715 3716 new_frame(curwin); 3717 if (curwin->w_frame == NULL) 3718 return FAIL; 3719 topframe = curwin->w_frame; 3720 topframe->fr_width = Columns; 3721 topframe->fr_height = Rows - p_ch; 3722 3723 return OK; 3724 } 3725 3726 /* 3727 * Create a frame for window "wp". 3728 */ 3729 static void 3730 new_frame(win_T *wp) 3731 { 3732 frame_T *frp = ALLOC_CLEAR_ONE(frame_T); 3733 3734 wp->w_frame = frp; 3735 if (frp != NULL) 3736 { 3737 frp->fr_layout = FR_LEAF; 3738 frp->fr_win = wp; 3739 } 3740 } 3741 3742 /* 3743 * Initialize the window and frame size to the maximum. 3744 */ 3745 void 3746 win_init_size(void) 3747 { 3748 firstwin->w_height = ROWS_AVAIL; 3749 topframe->fr_height = ROWS_AVAIL; 3750 firstwin->w_width = Columns; 3751 topframe->fr_width = Columns; 3752 } 3753 3754 /* 3755 * Allocate a new tabpage_T and init the values. 3756 * Returns NULL when out of memory. 3757 */ 3758 static tabpage_T * 3759 alloc_tabpage(void) 3760 { 3761 tabpage_T *tp; 3762 # ifdef FEAT_GUI 3763 int i; 3764 # endif 3765 3766 3767 tp = ALLOC_CLEAR_ONE(tabpage_T); 3768 if (tp == NULL) 3769 return NULL; 3770 3771 # ifdef FEAT_EVAL 3772 // init t: variables 3773 tp->tp_vars = dict_alloc(); 3774 if (tp->tp_vars == NULL) 3775 { 3776 vim_free(tp); 3777 return NULL; 3778 } 3779 init_var_dict(tp->tp_vars, &tp->tp_winvar, VAR_SCOPE); 3780 # endif 3781 3782 # ifdef FEAT_GUI 3783 for (i = 0; i < 3; i++) 3784 tp->tp_prev_which_scrollbars[i] = -1; 3785 # endif 3786 # ifdef FEAT_DIFF 3787 tp->tp_diff_invalid = TRUE; 3788 # endif 3789 tp->tp_ch_used = p_ch; 3790 3791 return tp; 3792 } 3793 3794 void 3795 free_tabpage(tabpage_T *tp) 3796 { 3797 int idx; 3798 3799 # ifdef FEAT_DIFF 3800 diff_clear(tp); 3801 # endif 3802 # ifdef FEAT_PROP_POPUP 3803 while (tp->tp_first_popupwin != NULL) 3804 popup_close_tabpage(tp, tp->tp_first_popupwin->w_id); 3805 #endif 3806 for (idx = 0; idx < SNAP_COUNT; ++idx) 3807 clear_snapshot(tp, idx); 3808 #ifdef FEAT_EVAL 3809 vars_clear(&tp->tp_vars->dv_hashtab); // free all t: variables 3810 hash_init(&tp->tp_vars->dv_hashtab); 3811 unref_var_dict(tp->tp_vars); 3812 #endif 3813 3814 vim_free(tp->tp_localdir); 3815 3816 #ifdef FEAT_PYTHON 3817 python_tabpage_free(tp); 3818 #endif 3819 3820 #ifdef FEAT_PYTHON3 3821 python3_tabpage_free(tp); 3822 #endif 3823 3824 vim_free(tp); 3825 } 3826 3827 /* 3828 * Create a new Tab page with one window. 3829 * It will edit the current buffer, like after ":split". 3830 * When "after" is 0 put it just after the current Tab page. 3831 * Otherwise put it just before tab page "after". 3832 * Return FAIL or OK. 3833 */ 3834 int 3835 win_new_tabpage(int after) 3836 { 3837 tabpage_T *tp = curtab; 3838 tabpage_T *newtp; 3839 int n; 3840 3841 newtp = alloc_tabpage(); 3842 if (newtp == NULL) 3843 return FAIL; 3844 3845 // Remember the current windows in this Tab page. 3846 if (leave_tabpage(curbuf, TRUE) == FAIL) 3847 { 3848 vim_free(newtp); 3849 return FAIL; 3850 } 3851 curtab = newtp; 3852 3853 newtp->tp_localdir = (tp->tp_localdir == NULL) 3854 ? NULL : vim_strsave(tp->tp_localdir); 3855 // Create a new empty window. 3856 if (win_alloc_firstwin(tp->tp_curwin) == OK) 3857 { 3858 // Make the new Tab page the new topframe. 3859 if (after == 1) 3860 { 3861 // New tab page becomes the first one. 3862 newtp->tp_next = first_tabpage; 3863 first_tabpage = newtp; 3864 } 3865 else 3866 { 3867 if (after > 0) 3868 { 3869 // Put new tab page before tab page "after". 3870 n = 2; 3871 for (tp = first_tabpage; tp->tp_next != NULL 3872 && n < after; tp = tp->tp_next) 3873 ++n; 3874 } 3875 newtp->tp_next = tp->tp_next; 3876 tp->tp_next = newtp; 3877 } 3878 newtp->tp_firstwin = newtp->tp_lastwin = newtp->tp_curwin = curwin; 3879 3880 win_init_size(); 3881 firstwin->w_winrow = tabline_height(); 3882 win_comp_scroll(curwin); 3883 3884 newtp->tp_topframe = topframe; 3885 last_status(FALSE); 3886 3887 #if defined(FEAT_GUI) 3888 // When 'guioptions' includes 'L' or 'R' may have to remove or add 3889 // scrollbars. Have to update them anyway. 3890 gui_may_update_scrollbars(); 3891 #endif 3892 #ifdef FEAT_JOB_CHANNEL 3893 entering_window(curwin); 3894 #endif 3895 3896 redraw_all_later(NOT_VALID); 3897 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 3898 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 3899 apply_autocmds(EVENT_TABNEW, NULL, NULL, FALSE, curbuf); 3900 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3901 return OK; 3902 } 3903 3904 // Failed, get back the previous Tab page 3905 enter_tabpage(curtab, curbuf, TRUE, TRUE); 3906 return FAIL; 3907 } 3908 3909 /* 3910 * Open a new tab page if ":tab cmd" was used. It will edit the same buffer, 3911 * like with ":split". 3912 * Returns OK if a new tab page was created, FAIL otherwise. 3913 */ 3914 static int 3915 may_open_tabpage(void) 3916 { 3917 int n = (cmdmod.tab == 0) ? postponed_split_tab : cmdmod.tab; 3918 3919 if (n != 0) 3920 { 3921 cmdmod.tab = 0; // reset it to avoid doing it twice 3922 postponed_split_tab = 0; 3923 return win_new_tabpage(n); 3924 } 3925 return FAIL; 3926 } 3927 3928 /* 3929 * Create up to "maxcount" tabpages with empty windows. 3930 * Returns the number of resulting tab pages. 3931 */ 3932 int 3933 make_tabpages(int maxcount) 3934 { 3935 int count = maxcount; 3936 int todo; 3937 3938 // Limit to 'tabpagemax' tabs. 3939 if (count > p_tpm) 3940 count = p_tpm; 3941 3942 /* 3943 * Don't execute autocommands while creating the tab pages. Must do that 3944 * when putting the buffers in the windows. 3945 */ 3946 block_autocmds(); 3947 3948 for (todo = count - 1; todo > 0; --todo) 3949 if (win_new_tabpage(0) == FAIL) 3950 break; 3951 3952 unblock_autocmds(); 3953 3954 // return actual number of tab pages 3955 return (count - todo); 3956 } 3957 3958 /* 3959 * Return TRUE when "tpc" points to a valid tab page. 3960 */ 3961 int 3962 valid_tabpage(tabpage_T *tpc) 3963 { 3964 tabpage_T *tp; 3965 3966 FOR_ALL_TABPAGES(tp) 3967 if (tp == tpc) 3968 return TRUE; 3969 return FALSE; 3970 } 3971 3972 /* 3973 * Return TRUE when "tpc" points to a valid tab page and at least one window is 3974 * valid. 3975 */ 3976 int 3977 valid_tabpage_win(tabpage_T *tpc) 3978 { 3979 tabpage_T *tp; 3980 win_T *wp; 3981 3982 FOR_ALL_TABPAGES(tp) 3983 { 3984 if (tp == tpc) 3985 { 3986 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 3987 { 3988 if (win_valid_any_tab(wp)) 3989 return TRUE; 3990 } 3991 return FALSE; 3992 } 3993 } 3994 // shouldn't happen 3995 return FALSE; 3996 } 3997 3998 /* 3999 * Close tabpage "tab", assuming it has no windows in it. 4000 * There must be another tabpage or this will crash. 4001 */ 4002 void 4003 close_tabpage(tabpage_T *tab) 4004 { 4005 tabpage_T *ptp; 4006 4007 if (tab == first_tabpage) 4008 { 4009 first_tabpage = tab->tp_next; 4010 ptp = first_tabpage; 4011 } 4012 else 4013 { 4014 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tab; 4015 ptp = ptp->tp_next) 4016 ; 4017 assert(ptp != NULL); 4018 ptp->tp_next = tab->tp_next; 4019 } 4020 4021 goto_tabpage_tp(ptp, FALSE, FALSE); 4022 free_tabpage(tab); 4023 } 4024 4025 /* 4026 * Find tab page "n" (first one is 1). Returns NULL when not found. 4027 */ 4028 tabpage_T * 4029 find_tabpage(int n) 4030 { 4031 tabpage_T *tp; 4032 int i = 1; 4033 4034 if (n == 0) 4035 return curtab; 4036 4037 for (tp = first_tabpage; tp != NULL && i != n; tp = tp->tp_next) 4038 ++i; 4039 return tp; 4040 } 4041 4042 /* 4043 * Get index of tab page "tp". First one has index 1. 4044 * When not found returns number of tab pages plus one. 4045 */ 4046 int 4047 tabpage_index(tabpage_T *ftp) 4048 { 4049 int i = 1; 4050 tabpage_T *tp; 4051 4052 for (tp = first_tabpage; tp != NULL && tp != ftp; tp = tp->tp_next) 4053 ++i; 4054 return i; 4055 } 4056 4057 /* 4058 * Prepare for leaving the current tab page. 4059 * When autocommands change "curtab" we don't leave the tab page and return 4060 * FAIL. 4061 * Careful: When OK is returned need to get a new tab page very very soon! 4062 */ 4063 static int 4064 leave_tabpage( 4065 buf_T *new_curbuf UNUSED, // what is going to be the new curbuf, 4066 // NULL if unknown 4067 int trigger_leave_autocmds UNUSED) 4068 { 4069 tabpage_T *tp = curtab; 4070 4071 #ifdef FEAT_JOB_CHANNEL 4072 leaving_window(curwin); 4073 #endif 4074 reset_VIsual_and_resel(); // stop Visual mode 4075 if (trigger_leave_autocmds) 4076 { 4077 if (new_curbuf != curbuf) 4078 { 4079 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4080 if (curtab != tp) 4081 return FAIL; 4082 } 4083 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4084 if (curtab != tp) 4085 return FAIL; 4086 apply_autocmds(EVENT_TABLEAVE, NULL, NULL, FALSE, curbuf); 4087 if (curtab != tp) 4088 return FAIL; 4089 } 4090 #if defined(FEAT_GUI) 4091 // Remove the scrollbars. They may be added back later. 4092 if (gui.in_use) 4093 gui_remove_scrollbars(); 4094 #endif 4095 tp->tp_curwin = curwin; 4096 tp->tp_prevwin = prevwin; 4097 tp->tp_firstwin = firstwin; 4098 tp->tp_lastwin = lastwin; 4099 tp->tp_old_Rows = Rows; 4100 tp->tp_old_Columns = Columns; 4101 firstwin = NULL; 4102 lastwin = NULL; 4103 return OK; 4104 } 4105 4106 /* 4107 * Start using tab page "tp". 4108 * Only to be used after leave_tabpage() or freeing the current tab page. 4109 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4110 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4111 */ 4112 static void 4113 enter_tabpage( 4114 tabpage_T *tp, 4115 buf_T *old_curbuf UNUSED, 4116 int trigger_enter_autocmds, 4117 int trigger_leave_autocmds) 4118 { 4119 int row; 4120 int old_off = tp->tp_firstwin->w_winrow; 4121 win_T *next_prevwin = tp->tp_prevwin; 4122 4123 curtab = tp; 4124 firstwin = tp->tp_firstwin; 4125 lastwin = tp->tp_lastwin; 4126 topframe = tp->tp_topframe; 4127 4128 // We would like doing the TabEnter event first, but we don't have a 4129 // valid current window yet, which may break some commands. 4130 // This triggers autocommands, thus may make "tp" invalid. 4131 win_enter_ext(tp->tp_curwin, FALSE, TRUE, FALSE, 4132 trigger_enter_autocmds, trigger_leave_autocmds); 4133 prevwin = next_prevwin; 4134 4135 last_status(FALSE); // status line may appear or disappear 4136 row = win_comp_pos(); // recompute w_winrow for all windows 4137 #ifdef FEAT_DIFF 4138 diff_need_scrollbind = TRUE; 4139 #endif 4140 4141 // The tabpage line may have appeared or disappeared, may need to resize 4142 // the frames for that. When the Vim window was resized need to update 4143 // frame sizes too. Use the stored value of p_ch, so that it can be 4144 // different for each tab page. 4145 if (p_ch != curtab->tp_ch_used) 4146 clear_cmdline = TRUE; 4147 p_ch = curtab->tp_ch_used; 4148 4149 // When cmdheight is changed in a tab page with '<C-w>-', cmdline_row is 4150 // changed but p_ch and tp_ch_used are not changed. Thus we also need to 4151 // check cmdline_row. 4152 if ((row < cmdline_row) && (cmdline_row <= Rows - p_ch)) 4153 clear_cmdline = TRUE; 4154 4155 if (curtab->tp_old_Rows != Rows || (old_off != firstwin->w_winrow 4156 #ifdef FEAT_GUI_TABLINE 4157 && !gui_use_tabline() 4158 #endif 4159 )) 4160 shell_new_rows(); 4161 if (curtab->tp_old_Columns != Columns && starting == 0) 4162 shell_new_columns(); // update window widths 4163 4164 #if defined(FEAT_GUI) 4165 // When 'guioptions' includes 'L' or 'R' may have to remove or add 4166 // scrollbars. Have to update them anyway. 4167 gui_may_update_scrollbars(); 4168 #endif 4169 4170 // Apply autocommands after updating the display, when 'rows' and 4171 // 'columns' have been set correctly. 4172 if (trigger_enter_autocmds) 4173 { 4174 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 4175 if (old_curbuf != curbuf) 4176 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4177 } 4178 4179 redraw_all_later(NOT_VALID); 4180 } 4181 4182 /* 4183 * Go to tab page "n". For ":tab N" and "Ngt". 4184 * When "n" is 9999 go to the last tab page. 4185 */ 4186 void 4187 goto_tabpage(int n) 4188 { 4189 tabpage_T *tp = NULL; // shut up compiler 4190 tabpage_T *ttp; 4191 int i; 4192 4193 if (text_locked()) 4194 { 4195 // Not allowed when editing the command line. 4196 text_locked_msg(); 4197 return; 4198 } 4199 4200 // If there is only one it can't work. 4201 if (first_tabpage->tp_next == NULL) 4202 { 4203 if (n > 1) 4204 beep_flush(); 4205 return; 4206 } 4207 4208 if (n == 0) 4209 { 4210 // No count, go to next tab page, wrap around end. 4211 if (curtab->tp_next == NULL) 4212 tp = first_tabpage; 4213 else 4214 tp = curtab->tp_next; 4215 } 4216 else if (n < 0) 4217 { 4218 // "gT": go to previous tab page, wrap around end. "N gT" repeats 4219 // this N times. 4220 ttp = curtab; 4221 for (i = n; i < 0; ++i) 4222 { 4223 for (tp = first_tabpage; tp->tp_next != ttp && tp->tp_next != NULL; 4224 tp = tp->tp_next) 4225 ; 4226 ttp = tp; 4227 } 4228 } 4229 else if (n == 9999) 4230 { 4231 // Go to last tab page. 4232 for (tp = first_tabpage; tp->tp_next != NULL; tp = tp->tp_next) 4233 ; 4234 } 4235 else 4236 { 4237 // Go to tab page "n". 4238 tp = find_tabpage(n); 4239 if (tp == NULL) 4240 { 4241 beep_flush(); 4242 return; 4243 } 4244 } 4245 4246 goto_tabpage_tp(tp, TRUE, TRUE); 4247 4248 #ifdef FEAT_GUI_TABLINE 4249 if (gui_use_tabline()) 4250 gui_mch_set_curtab(tabpage_index(curtab)); 4251 #endif 4252 } 4253 4254 /* 4255 * Go to tabpage "tp". 4256 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4257 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4258 * Note: doesn't update the GUI tab. 4259 */ 4260 void 4261 goto_tabpage_tp( 4262 tabpage_T *tp, 4263 int trigger_enter_autocmds, 4264 int trigger_leave_autocmds) 4265 { 4266 // Don't repeat a message in another tab page. 4267 set_keep_msg(NULL, 0); 4268 4269 if (tp != curtab && leave_tabpage(tp->tp_curwin->w_buffer, 4270 trigger_leave_autocmds) == OK) 4271 { 4272 if (valid_tabpage(tp)) 4273 enter_tabpage(tp, curbuf, trigger_enter_autocmds, 4274 trigger_leave_autocmds); 4275 else 4276 enter_tabpage(curtab, curbuf, trigger_enter_autocmds, 4277 trigger_leave_autocmds); 4278 } 4279 } 4280 4281 /* 4282 * Enter window "wp" in tab page "tp". 4283 * Also updates the GUI tab. 4284 */ 4285 void 4286 goto_tabpage_win(tabpage_T *tp, win_T *wp) 4287 { 4288 goto_tabpage_tp(tp, TRUE, TRUE); 4289 if (curtab == tp && win_valid(wp)) 4290 { 4291 win_enter(wp, TRUE); 4292 # ifdef FEAT_GUI_TABLINE 4293 if (gui_use_tabline()) 4294 gui_mch_set_curtab(tabpage_index(curtab)); 4295 # endif 4296 } 4297 } 4298 4299 /* 4300 * Move the current tab page to after tab page "nr". 4301 */ 4302 void 4303 tabpage_move(int nr) 4304 { 4305 int n = 1; 4306 tabpage_T *tp, *tp_dst; 4307 4308 if (first_tabpage->tp_next == NULL) 4309 return; 4310 4311 for (tp = first_tabpage; tp->tp_next != NULL && n < nr; tp = tp->tp_next) 4312 ++n; 4313 4314 if (tp == curtab || (nr > 0 && tp->tp_next != NULL 4315 && tp->tp_next == curtab)) 4316 return; 4317 4318 tp_dst = tp; 4319 4320 // Remove the current tab page from the list of tab pages. 4321 if (curtab == first_tabpage) 4322 first_tabpage = curtab->tp_next; 4323 else 4324 { 4325 FOR_ALL_TABPAGES(tp) 4326 if (tp->tp_next == curtab) 4327 break; 4328 if (tp == NULL) // "cannot happen" 4329 return; 4330 tp->tp_next = curtab->tp_next; 4331 } 4332 4333 // Re-insert it at the specified position. 4334 if (nr <= 0) 4335 { 4336 curtab->tp_next = first_tabpage; 4337 first_tabpage = curtab; 4338 } 4339 else 4340 { 4341 curtab->tp_next = tp_dst->tp_next; 4342 tp_dst->tp_next = curtab; 4343 } 4344 4345 // Need to redraw the tabline. Tab page contents doesn't change. 4346 redraw_tabline = TRUE; 4347 } 4348 4349 4350 /* 4351 * Go to another window. 4352 * When jumping to another buffer, stop Visual mode. Do this before 4353 * changing windows so we can yank the selection into the '*' register. 4354 * When jumping to another window on the same buffer, adjust its cursor 4355 * position to keep the same Visual area. 4356 */ 4357 void 4358 win_goto(win_T *wp) 4359 { 4360 #ifdef FEAT_CONCEAL 4361 win_T *owp = curwin; 4362 #endif 4363 4364 #ifdef FEAT_PROP_POPUP 4365 if (ERROR_IF_ANY_POPUP_WINDOW) 4366 return; 4367 if (popup_is_popup(wp)) 4368 { 4369 emsg(_("E366: Not allowed to enter a popup window")); 4370 return; 4371 } 4372 #endif 4373 if (text_and_win_locked()) 4374 { 4375 beep_flush(); 4376 text_locked_msg(); 4377 return; 4378 } 4379 if (curbuf_locked()) 4380 return; 4381 4382 if (wp->w_buffer != curbuf) 4383 reset_VIsual_and_resel(); 4384 else if (VIsual_active) 4385 wp->w_cursor = curwin->w_cursor; 4386 4387 #ifdef FEAT_GUI 4388 need_mouse_correct = TRUE; 4389 #endif 4390 win_enter(wp, TRUE); 4391 4392 #ifdef FEAT_CONCEAL 4393 // Conceal cursor line in previous window, unconceal in current window. 4394 if (win_valid(owp) && owp->w_p_cole > 0 && !msg_scrolled) 4395 redrawWinline(owp, owp->w_cursor.lnum); 4396 if (curwin->w_p_cole > 0 && !msg_scrolled) 4397 need_cursor_line_redraw = TRUE; 4398 #endif 4399 } 4400 4401 #if defined(FEAT_PERL) || defined(PROTO) 4402 /* 4403 * Find window number "winnr" (counting top to bottom). 4404 */ 4405 win_T * 4406 win_find_nr(int winnr) 4407 { 4408 win_T *wp; 4409 4410 FOR_ALL_WINDOWS(wp) 4411 if (--winnr == 0) 4412 break; 4413 return wp; 4414 } 4415 #endif 4416 4417 #if ((defined(FEAT_PYTHON) || defined(FEAT_PYTHON3))) || defined(PROTO) 4418 /* 4419 * Find the tabpage for window "win". 4420 */ 4421 tabpage_T * 4422 win_find_tabpage(win_T *win) 4423 { 4424 win_T *wp; 4425 tabpage_T *tp; 4426 4427 FOR_ALL_TAB_WINDOWS(tp, wp) 4428 if (wp == win) 4429 return tp; 4430 return NULL; 4431 } 4432 #endif 4433 4434 /* 4435 * Get the above or below neighbor window of the specified window. 4436 * up - TRUE for the above neighbor 4437 * count - nth neighbor window 4438 * Returns the specified window if the neighbor is not found. 4439 */ 4440 win_T * 4441 win_vert_neighbor(tabpage_T *tp, win_T *wp, int up, long count) 4442 { 4443 frame_T *fr; 4444 frame_T *nfr; 4445 frame_T *foundfr; 4446 4447 #ifdef FEAT_PROP_POPUP 4448 if (popup_is_popup(wp)) 4449 // popups don't have neighbors. 4450 return NULL; 4451 #endif 4452 foundfr = wp->w_frame; 4453 while (count--) 4454 { 4455 /* 4456 * First go upwards in the tree of frames until we find a upwards or 4457 * downwards neighbor. 4458 */ 4459 fr = foundfr; 4460 for (;;) 4461 { 4462 if (fr == tp->tp_topframe) 4463 goto end; 4464 if (up) 4465 nfr = fr->fr_prev; 4466 else 4467 nfr = fr->fr_next; 4468 if (fr->fr_parent->fr_layout == FR_COL && nfr != NULL) 4469 break; 4470 fr = fr->fr_parent; 4471 } 4472 4473 /* 4474 * Now go downwards to find the bottom or top frame in it. 4475 */ 4476 for (;;) 4477 { 4478 if (nfr->fr_layout == FR_LEAF) 4479 { 4480 foundfr = nfr; 4481 break; 4482 } 4483 fr = nfr->fr_child; 4484 if (nfr->fr_layout == FR_ROW) 4485 { 4486 // Find the frame at the cursor row. 4487 while (fr->fr_next != NULL 4488 && frame2win(fr)->w_wincol + fr->fr_width 4489 <= wp->w_wincol + wp->w_wcol) 4490 fr = fr->fr_next; 4491 } 4492 if (nfr->fr_layout == FR_COL && up) 4493 while (fr->fr_next != NULL) 4494 fr = fr->fr_next; 4495 nfr = fr; 4496 } 4497 } 4498 end: 4499 return foundfr != NULL ? foundfr->fr_win : NULL; 4500 } 4501 4502 /* 4503 * Move to window above or below "count" times. 4504 */ 4505 static void 4506 win_goto_ver( 4507 int up, // TRUE to go to win above 4508 long count) 4509 { 4510 win_T *win; 4511 4512 #ifdef FEAT_PROP_POPUP 4513 if (ERROR_IF_TERM_POPUP_WINDOW) 4514 return; 4515 #endif 4516 win = win_vert_neighbor(curtab, curwin, up, count); 4517 if (win != NULL) 4518 win_goto(win); 4519 } 4520 4521 /* 4522 * Get the left or right neighbor window of the specified window. 4523 * left - TRUE for the left neighbor 4524 * count - nth neighbor window 4525 * Returns the specified window if the neighbor is not found. 4526 */ 4527 win_T * 4528 win_horz_neighbor(tabpage_T *tp, win_T *wp, int left, long count) 4529 { 4530 frame_T *fr; 4531 frame_T *nfr; 4532 frame_T *foundfr; 4533 4534 #ifdef FEAT_PROP_POPUP 4535 if (popup_is_popup(wp)) 4536 // popups don't have neighbors. 4537 return NULL; 4538 #endif 4539 foundfr = wp->w_frame; 4540 while (count--) 4541 { 4542 /* 4543 * First go upwards in the tree of frames until we find a left or 4544 * right neighbor. 4545 */ 4546 fr = foundfr; 4547 for (;;) 4548 { 4549 if (fr == tp->tp_topframe) 4550 goto end; 4551 if (left) 4552 nfr = fr->fr_prev; 4553 else 4554 nfr = fr->fr_next; 4555 if (fr->fr_parent->fr_layout == FR_ROW && nfr != NULL) 4556 break; 4557 fr = fr->fr_parent; 4558 } 4559 4560 /* 4561 * Now go downwards to find the leftmost or rightmost frame in it. 4562 */ 4563 for (;;) 4564 { 4565 if (nfr->fr_layout == FR_LEAF) 4566 { 4567 foundfr = nfr; 4568 break; 4569 } 4570 fr = nfr->fr_child; 4571 if (nfr->fr_layout == FR_COL) 4572 { 4573 // Find the frame at the cursor row. 4574 while (fr->fr_next != NULL 4575 && frame2win(fr)->w_winrow + fr->fr_height 4576 <= wp->w_winrow + wp->w_wrow) 4577 fr = fr->fr_next; 4578 } 4579 if (nfr->fr_layout == FR_ROW && left) 4580 while (fr->fr_next != NULL) 4581 fr = fr->fr_next; 4582 nfr = fr; 4583 } 4584 } 4585 end: 4586 return foundfr != NULL ? foundfr->fr_win : NULL; 4587 } 4588 4589 /* 4590 * Move to left or right window. 4591 */ 4592 static void 4593 win_goto_hor( 4594 int left, // TRUE to go to left win 4595 long count) 4596 { 4597 win_T *win; 4598 4599 #ifdef FEAT_PROP_POPUP 4600 if (ERROR_IF_TERM_POPUP_WINDOW) 4601 return; 4602 #endif 4603 win = win_horz_neighbor(curtab, curwin, left, count); 4604 if (win != NULL) 4605 win_goto(win); 4606 } 4607 4608 /* 4609 * Make window "wp" the current window. 4610 */ 4611 void 4612 win_enter(win_T *wp, int undo_sync) 4613 { 4614 win_enter_ext(wp, undo_sync, FALSE, FALSE, TRUE, TRUE); 4615 } 4616 4617 /* 4618 * Make window wp the current window. 4619 * Can be called with "curwin_invalid" TRUE, which means that curwin has just 4620 * been closed and isn't valid. 4621 */ 4622 static void 4623 win_enter_ext( 4624 win_T *wp, 4625 int undo_sync, 4626 int curwin_invalid, 4627 int trigger_new_autocmds, 4628 int trigger_enter_autocmds, 4629 int trigger_leave_autocmds) 4630 { 4631 int other_buffer = FALSE; 4632 4633 if (wp == curwin && !curwin_invalid) // nothing to do 4634 return; 4635 4636 #ifdef FEAT_JOB_CHANNEL 4637 if (!curwin_invalid) 4638 leaving_window(curwin); 4639 #endif 4640 4641 if (!curwin_invalid && trigger_leave_autocmds) 4642 { 4643 /* 4644 * Be careful: If autocommands delete the window, return now. 4645 */ 4646 if (wp->w_buffer != curbuf) 4647 { 4648 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4649 other_buffer = TRUE; 4650 if (!win_valid(wp)) 4651 return; 4652 } 4653 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4654 if (!win_valid(wp)) 4655 return; 4656 #ifdef FEAT_EVAL 4657 // autocmds may abort script processing 4658 if (aborting()) 4659 return; 4660 #endif 4661 } 4662 4663 // sync undo before leaving the current buffer 4664 if (undo_sync && curbuf != wp->w_buffer) 4665 u_sync(FALSE); 4666 4667 // Might need to scroll the old window before switching, e.g., when the 4668 // cursor was moved. 4669 update_topline(); 4670 4671 // may have to copy the buffer options when 'cpo' contains 'S' 4672 if (wp->w_buffer != curbuf) 4673 buf_copy_options(wp->w_buffer, BCO_ENTER | BCO_NOHELP); 4674 if (!curwin_invalid) 4675 { 4676 prevwin = curwin; // remember for CTRL-W p 4677 curwin->w_redr_status = TRUE; 4678 } 4679 curwin = wp; 4680 curbuf = wp->w_buffer; 4681 check_cursor(); 4682 if (!virtual_active()) 4683 curwin->w_cursor.coladd = 0; 4684 changed_line_abv_curs(); // assume cursor position needs updating 4685 4686 if (curwin->w_localdir != NULL || curtab->tp_localdir != NULL) 4687 { 4688 char_u *dirname; 4689 4690 // Window or tab has a local directory: Save current directory as 4691 // global directory (unless that was done already) and change to the 4692 // local directory. 4693 if (globaldir == NULL) 4694 { 4695 char_u cwd[MAXPATHL]; 4696 4697 if (mch_dirname(cwd, MAXPATHL) == OK) 4698 globaldir = vim_strsave(cwd); 4699 } 4700 if (curwin->w_localdir != NULL) 4701 dirname = curwin->w_localdir; 4702 else 4703 dirname = curtab->tp_localdir; 4704 4705 if (mch_chdir((char *)dirname) == 0) 4706 shorten_fnames(TRUE); 4707 } 4708 else if (globaldir != NULL) 4709 { 4710 // Window doesn't have a local directory and we are not in the global 4711 // directory: Change to the global directory. 4712 vim_ignored = mch_chdir((char *)globaldir); 4713 VIM_CLEAR(globaldir); 4714 shorten_fnames(TRUE); 4715 } 4716 4717 #ifdef FEAT_JOB_CHANNEL 4718 entering_window(curwin); 4719 #endif 4720 // Careful: autocommands may close the window and make "wp" invalid 4721 if (trigger_new_autocmds) 4722 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 4723 if (trigger_enter_autocmds) 4724 { 4725 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 4726 if (other_buffer) 4727 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4728 } 4729 4730 #ifdef FEAT_TITLE 4731 maketitle(); 4732 #endif 4733 curwin->w_redr_status = TRUE; 4734 #ifdef FEAT_TERMINAL 4735 if (bt_terminal(curwin->w_buffer)) 4736 // terminal is likely in another mode 4737 redraw_mode = TRUE; 4738 #endif 4739 redraw_tabline = TRUE; 4740 if (restart_edit) 4741 redraw_later(VALID); // causes status line redraw 4742 4743 // set window height to desired minimal value 4744 if (curwin->w_height < p_wh && !curwin->w_p_wfh 4745 #ifdef FEAT_PROP_POPUP 4746 && !popup_is_popup(curwin) 4747 #endif 4748 ) 4749 win_setheight((int)p_wh); 4750 else if (curwin->w_height == 0) 4751 win_setheight(1); 4752 4753 // set window width to desired minimal value 4754 if (curwin->w_width < p_wiw && !curwin->w_p_wfw) 4755 win_setwidth((int)p_wiw); 4756 4757 setmouse(); // in case jumped to/from help buffer 4758 4759 // Change directories when the 'acd' option is set. 4760 DO_AUTOCHDIR; 4761 } 4762 4763 4764 /* 4765 * Jump to the first open window that contains buffer "buf", if one exists. 4766 * Returns a pointer to the window found, otherwise NULL. 4767 */ 4768 win_T * 4769 buf_jump_open_win(buf_T *buf) 4770 { 4771 win_T *wp = NULL; 4772 4773 if (curwin->w_buffer == buf) 4774 wp = curwin; 4775 else 4776 FOR_ALL_WINDOWS(wp) 4777 if (wp->w_buffer == buf) 4778 break; 4779 if (wp != NULL) 4780 win_enter(wp, FALSE); 4781 return wp; 4782 } 4783 4784 /* 4785 * Jump to the first open window in any tab page that contains buffer "buf", 4786 * if one exists. 4787 * Returns a pointer to the window found, otherwise NULL. 4788 */ 4789 win_T * 4790 buf_jump_open_tab(buf_T *buf) 4791 { 4792 win_T *wp = buf_jump_open_win(buf); 4793 tabpage_T *tp; 4794 4795 if (wp != NULL) 4796 return wp; 4797 4798 FOR_ALL_TABPAGES(tp) 4799 if (tp != curtab) 4800 { 4801 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 4802 if (wp->w_buffer == buf) 4803 break; 4804 if (wp != NULL) 4805 { 4806 goto_tabpage_win(tp, wp); 4807 if (curwin != wp) 4808 wp = NULL; // something went wrong 4809 break; 4810 } 4811 } 4812 return wp; 4813 } 4814 4815 static int last_win_id = LOWEST_WIN_ID - 1; 4816 4817 /* 4818 * Allocate a window structure and link it in the window list when "hidden" is 4819 * FALSE. 4820 */ 4821 static win_T * 4822 win_alloc(win_T *after UNUSED, int hidden UNUSED) 4823 { 4824 win_T *new_wp; 4825 4826 /* 4827 * allocate window structure and linesizes arrays 4828 */ 4829 new_wp = ALLOC_CLEAR_ONE(win_T); 4830 if (new_wp == NULL) 4831 return NULL; 4832 4833 if (win_alloc_lines(new_wp) == FAIL) 4834 { 4835 vim_free(new_wp); 4836 return NULL; 4837 } 4838 4839 new_wp->w_id = ++last_win_id; 4840 4841 #ifdef FEAT_EVAL 4842 // init w: variables 4843 new_wp->w_vars = dict_alloc(); 4844 if (new_wp->w_vars == NULL) 4845 { 4846 win_free_lsize(new_wp); 4847 vim_free(new_wp); 4848 return NULL; 4849 } 4850 init_var_dict(new_wp->w_vars, &new_wp->w_winvar, VAR_SCOPE); 4851 #endif 4852 4853 // Don't execute autocommands while the window is not properly 4854 // initialized yet. gui_create_scrollbar() may trigger a FocusGained 4855 // event. 4856 block_autocmds(); 4857 4858 /* 4859 * link the window in the window list 4860 */ 4861 if (!hidden) 4862 win_append(after, new_wp); 4863 new_wp->w_wincol = 0; 4864 new_wp->w_width = Columns; 4865 4866 // position the display and the cursor at the top of the file. 4867 new_wp->w_topline = 1; 4868 #ifdef FEAT_DIFF 4869 new_wp->w_topfill = 0; 4870 #endif 4871 new_wp->w_botline = 2; 4872 new_wp->w_cursor.lnum = 1; 4873 new_wp->w_scbind_pos = 1; 4874 4875 // use global option value for global-local options 4876 new_wp->w_p_so = -1; 4877 new_wp->w_p_siso = -1; 4878 4879 // We won't calculate w_fraction until resizing the window 4880 new_wp->w_fraction = 0; 4881 new_wp->w_prev_fraction_row = -1; 4882 4883 #ifdef FEAT_GUI 4884 if (gui.in_use) 4885 { 4886 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_LEFT], 4887 SBAR_LEFT, new_wp); 4888 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_RIGHT], 4889 SBAR_RIGHT, new_wp); 4890 } 4891 #endif 4892 #ifdef FEAT_FOLDING 4893 foldInitWin(new_wp); 4894 #endif 4895 unblock_autocmds(); 4896 #ifdef FEAT_SEARCH_EXTRA 4897 new_wp->w_match_head = NULL; 4898 new_wp->w_next_match_id = 4; 4899 #endif 4900 return new_wp; 4901 } 4902 4903 /* 4904 * Remove window 'wp' from the window list and free the structure. 4905 */ 4906 static void 4907 win_free( 4908 win_T *wp, 4909 tabpage_T *tp) // tab page "win" is in, NULL for current 4910 { 4911 int i; 4912 buf_T *buf; 4913 wininfo_T *wip; 4914 4915 #ifdef FEAT_FOLDING 4916 clearFolding(wp); 4917 #endif 4918 4919 // reduce the reference count to the argument list. 4920 alist_unlink(wp->w_alist); 4921 4922 // Don't execute autocommands while the window is halfway being deleted. 4923 // gui_mch_destroy_scrollbar() may trigger a FocusGained event. 4924 block_autocmds(); 4925 4926 #ifdef FEAT_LUA 4927 lua_window_free(wp); 4928 #endif 4929 4930 #ifdef FEAT_MZSCHEME 4931 mzscheme_window_free(wp); 4932 #endif 4933 4934 #ifdef FEAT_PERL 4935 perl_win_free(wp); 4936 #endif 4937 4938 #ifdef FEAT_PYTHON 4939 python_window_free(wp); 4940 #endif 4941 4942 #ifdef FEAT_PYTHON3 4943 python3_window_free(wp); 4944 #endif 4945 4946 #ifdef FEAT_TCL 4947 tcl_window_free(wp); 4948 #endif 4949 4950 #ifdef FEAT_RUBY 4951 ruby_window_free(wp); 4952 #endif 4953 4954 clear_winopt(&wp->w_onebuf_opt); 4955 clear_winopt(&wp->w_allbuf_opt); 4956 4957 #ifdef FEAT_EVAL 4958 vars_clear(&wp->w_vars->dv_hashtab); // free all w: variables 4959 hash_init(&wp->w_vars->dv_hashtab); 4960 unref_var_dict(wp->w_vars); 4961 #endif 4962 4963 { 4964 tabpage_T *ttp; 4965 4966 if (prevwin == wp) 4967 prevwin = NULL; 4968 FOR_ALL_TABPAGES(ttp) 4969 if (ttp->tp_prevwin == wp) 4970 ttp->tp_prevwin = NULL; 4971 } 4972 win_free_lsize(wp); 4973 4974 for (i = 0; i < wp->w_tagstacklen; ++i) 4975 { 4976 vim_free(wp->w_tagstack[i].tagname); 4977 vim_free(wp->w_tagstack[i].user_data); 4978 } 4979 vim_free(wp->w_localdir); 4980 4981 // Remove the window from the b_wininfo lists, it may happen that the 4982 // freed memory is re-used for another window. 4983 FOR_ALL_BUFFERS(buf) 4984 FOR_ALL_BUF_WININFO(buf, wip) 4985 if (wip->wi_win == wp) 4986 wip->wi_win = NULL; 4987 4988 #ifdef FEAT_SEARCH_EXTRA 4989 clear_matches(wp); 4990 #endif 4991 4992 #ifdef FEAT_JUMPLIST 4993 free_jumplist(wp); 4994 #endif 4995 4996 #ifdef FEAT_QUICKFIX 4997 qf_free_all(wp); 4998 #endif 4999 5000 #ifdef FEAT_GUI 5001 if (gui.in_use) 5002 { 5003 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_LEFT]); 5004 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_RIGHT]); 5005 } 5006 #endif // FEAT_GUI 5007 5008 #ifdef FEAT_MENU 5009 remove_winbar(wp); 5010 #endif 5011 #ifdef FEAT_PROP_POPUP 5012 free_callback(&wp->w_close_cb); 5013 free_callback(&wp->w_filter_cb); 5014 for (i = 0; i < 4; ++i) 5015 VIM_CLEAR(wp->w_border_highlight[i]); 5016 vim_free(wp->w_scrollbar_highlight); 5017 vim_free(wp->w_thumb_highlight); 5018 vim_free(wp->w_popup_title); 5019 list_unref(wp->w_popup_mask); 5020 vim_free(wp->w_popup_mask_cells); 5021 #endif 5022 5023 #ifdef FEAT_SYN_HL 5024 vim_free(wp->w_p_cc_cols); 5025 #endif 5026 5027 if (win_valid_any_tab(wp)) 5028 win_remove(wp, tp); 5029 if (autocmd_busy) 5030 { 5031 wp->w_next = au_pending_free_win; 5032 au_pending_free_win = wp; 5033 } 5034 else 5035 vim_free(wp); 5036 5037 unblock_autocmds(); 5038 } 5039 5040 /* 5041 * Return TRUE if "wp" is not in the list of windows: the autocmd window or a 5042 * popup window. 5043 */ 5044 static int 5045 win_unlisted(win_T *wp) 5046 { 5047 return wp == aucmd_win || WIN_IS_POPUP(wp); 5048 } 5049 5050 #if defined(FEAT_PROP_POPUP) || defined(PROTO) 5051 /* 5052 * Free a popup window. This does not take the window out of the window list 5053 * and assumes there is only one toplevel frame, no split. 5054 */ 5055 void 5056 win_free_popup(win_T *win) 5057 { 5058 if (bt_popup(win->w_buffer)) 5059 win_close_buffer(win, DOBUF_WIPE_REUSE, FALSE); 5060 else 5061 close_buffer(win, win->w_buffer, 0, FALSE, FALSE); 5062 # if defined(FEAT_TIMERS) 5063 if (win->w_popup_timer != NULL) 5064 stop_timer(win->w_popup_timer); 5065 # endif 5066 vim_free(win->w_frame); 5067 win_free(win, NULL); 5068 } 5069 #endif 5070 5071 /* 5072 * Append window "wp" in the window list after window "after". 5073 */ 5074 static void 5075 win_append(win_T *after, win_T *wp) 5076 { 5077 win_T *before; 5078 5079 if (after == NULL) // after NULL is in front of the first 5080 before = firstwin; 5081 else 5082 before = after->w_next; 5083 5084 wp->w_next = before; 5085 wp->w_prev = after; 5086 if (after == NULL) 5087 firstwin = wp; 5088 else 5089 after->w_next = wp; 5090 if (before == NULL) 5091 lastwin = wp; 5092 else 5093 before->w_prev = wp; 5094 } 5095 5096 /* 5097 * Remove a window from the window list. 5098 */ 5099 void 5100 win_remove( 5101 win_T *wp, 5102 tabpage_T *tp) // tab page "win" is in, NULL for current 5103 { 5104 if (wp->w_prev != NULL) 5105 wp->w_prev->w_next = wp->w_next; 5106 else if (tp == NULL) 5107 firstwin = curtab->tp_firstwin = wp->w_next; 5108 else 5109 tp->tp_firstwin = wp->w_next; 5110 5111 if (wp->w_next != NULL) 5112 wp->w_next->w_prev = wp->w_prev; 5113 else if (tp == NULL) 5114 lastwin = curtab->tp_lastwin = wp->w_prev; 5115 else 5116 tp->tp_lastwin = wp->w_prev; 5117 } 5118 5119 /* 5120 * Append frame "frp" in a frame list after frame "after". 5121 */ 5122 static void 5123 frame_append(frame_T *after, frame_T *frp) 5124 { 5125 frp->fr_next = after->fr_next; 5126 after->fr_next = frp; 5127 if (frp->fr_next != NULL) 5128 frp->fr_next->fr_prev = frp; 5129 frp->fr_prev = after; 5130 } 5131 5132 /* 5133 * Insert frame "frp" in a frame list before frame "before". 5134 */ 5135 static void 5136 frame_insert(frame_T *before, frame_T *frp) 5137 { 5138 frp->fr_next = before; 5139 frp->fr_prev = before->fr_prev; 5140 before->fr_prev = frp; 5141 if (frp->fr_prev != NULL) 5142 frp->fr_prev->fr_next = frp; 5143 else 5144 frp->fr_parent->fr_child = frp; 5145 } 5146 5147 /* 5148 * Remove a frame from a frame list. 5149 */ 5150 static void 5151 frame_remove(frame_T *frp) 5152 { 5153 if (frp->fr_prev != NULL) 5154 frp->fr_prev->fr_next = frp->fr_next; 5155 else 5156 { 5157 frp->fr_parent->fr_child = frp->fr_next; 5158 // special case: topframe->fr_child == frp 5159 if (topframe->fr_child == frp) 5160 topframe->fr_child = frp->fr_next; 5161 } 5162 if (frp->fr_next != NULL) 5163 frp->fr_next->fr_prev = frp->fr_prev; 5164 } 5165 5166 /* 5167 * Allocate w_lines[] for window "wp". 5168 * Return FAIL for failure, OK for success. 5169 */ 5170 int 5171 win_alloc_lines(win_T *wp) 5172 { 5173 wp->w_lines_valid = 0; 5174 wp->w_lines = ALLOC_CLEAR_MULT(wline_T, Rows ); 5175 if (wp->w_lines == NULL) 5176 return FAIL; 5177 return OK; 5178 } 5179 5180 /* 5181 * free lsize arrays for a window 5182 */ 5183 void 5184 win_free_lsize(win_T *wp) 5185 { 5186 // TODO: why would wp be NULL here? 5187 if (wp != NULL) 5188 VIM_CLEAR(wp->w_lines); 5189 } 5190 5191 /* 5192 * Called from win_new_shellsize() after Rows changed. 5193 * This only does the current tab page, others must be done when made active. 5194 */ 5195 void 5196 shell_new_rows(void) 5197 { 5198 int h = (int)ROWS_AVAIL; 5199 5200 if (firstwin == NULL) // not initialized yet 5201 return; 5202 if (h < frame_minheight(topframe, NULL)) 5203 h = frame_minheight(topframe, NULL); 5204 5205 // First try setting the heights of windows with 'winfixheight'. If 5206 // that doesn't result in the right height, forget about that option. 5207 frame_new_height(topframe, h, FALSE, TRUE); 5208 if (!frame_check_height(topframe, h)) 5209 frame_new_height(topframe, h, FALSE, FALSE); 5210 5211 (void)win_comp_pos(); // recompute w_winrow and w_wincol 5212 compute_cmdrow(); 5213 curtab->tp_ch_used = p_ch; 5214 5215 #if 0 5216 // Disabled: don't want making the screen smaller make a window larger. 5217 if (p_ea) 5218 win_equal(curwin, FALSE, 'v'); 5219 #endif 5220 } 5221 5222 /* 5223 * Called from win_new_shellsize() after Columns changed. 5224 */ 5225 void 5226 shell_new_columns(void) 5227 { 5228 if (firstwin == NULL) // not initialized yet 5229 return; 5230 5231 // First try setting the widths of windows with 'winfixwidth'. If that 5232 // doesn't result in the right width, forget about that option. 5233 frame_new_width(topframe, (int)Columns, FALSE, TRUE); 5234 if (!frame_check_width(topframe, Columns)) 5235 frame_new_width(topframe, (int)Columns, FALSE, FALSE); 5236 5237 (void)win_comp_pos(); // recompute w_winrow and w_wincol 5238 #if 0 5239 // Disabled: don't want making the screen smaller make a window larger. 5240 if (p_ea) 5241 win_equal(curwin, FALSE, 'h'); 5242 #endif 5243 } 5244 5245 #if defined(FEAT_CMDWIN) || defined(PROTO) 5246 /* 5247 * Save the size of all windows in "gap". 5248 */ 5249 void 5250 win_size_save(garray_T *gap) 5251 5252 { 5253 win_T *wp; 5254 5255 ga_init2(gap, (int)sizeof(int), 1); 5256 if (ga_grow(gap, win_count() * 2 + 1) == OK) 5257 { 5258 // first entry is value of 'lines' 5259 ((int *)gap->ga_data)[gap->ga_len++] = Rows; 5260 5261 FOR_ALL_WINDOWS(wp) 5262 { 5263 ((int *)gap->ga_data)[gap->ga_len++] = 5264 wp->w_width + wp->w_vsep_width; 5265 ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height; 5266 } 5267 } 5268 } 5269 5270 /* 5271 * Restore window sizes, but only if the number of windows is still the same 5272 * and 'lines' didn't change. 5273 * Does not free the growarray. 5274 */ 5275 void 5276 win_size_restore(garray_T *gap) 5277 { 5278 win_T *wp; 5279 int i, j; 5280 5281 if (win_count() * 2 + 1 == gap->ga_len 5282 && ((int *)gap->ga_data)[0] == Rows) 5283 { 5284 // The order matters, because frames contain other frames, but it's 5285 // difficult to get right. The easy way out is to do it twice. 5286 for (j = 0; j < 2; ++j) 5287 { 5288 i = 1; 5289 FOR_ALL_WINDOWS(wp) 5290 { 5291 frame_setwidth(wp->w_frame, ((int *)gap->ga_data)[i++]); 5292 win_setheight_win(((int *)gap->ga_data)[i++], wp); 5293 } 5294 } 5295 // recompute the window positions 5296 (void)win_comp_pos(); 5297 } 5298 } 5299 #endif // FEAT_CMDWIN 5300 5301 /* 5302 * Update the position for all windows, using the width and height of the 5303 * frames. 5304 * Returns the row just after the last window. 5305 */ 5306 int 5307 win_comp_pos(void) 5308 { 5309 int row = tabline_height(); 5310 int col = 0; 5311 5312 frame_comp_pos(topframe, &row, &col); 5313 return row; 5314 } 5315 5316 /* 5317 * Update the position of the windows in frame "topfrp", using the width and 5318 * height of the frames. 5319 * "*row" and "*col" are the top-left position of the frame. They are updated 5320 * to the bottom-right position plus one. 5321 */ 5322 static void 5323 frame_comp_pos(frame_T *topfrp, int *row, int *col) 5324 { 5325 win_T *wp; 5326 frame_T *frp; 5327 int startcol; 5328 int startrow; 5329 int h; 5330 5331 wp = topfrp->fr_win; 5332 if (wp != NULL) 5333 { 5334 if (wp->w_winrow != *row || wp->w_wincol != *col) 5335 { 5336 // position changed, redraw 5337 wp->w_winrow = *row; 5338 wp->w_wincol = *col; 5339 redraw_win_later(wp, NOT_VALID); 5340 wp->w_redr_status = TRUE; 5341 } 5342 // WinBar will not show if the window height is zero 5343 h = VISIBLE_HEIGHT(wp) + wp->w_status_height; 5344 *row += h > topfrp->fr_height ? topfrp->fr_height : h; 5345 *col += wp->w_width + wp->w_vsep_width; 5346 } 5347 else 5348 { 5349 startrow = *row; 5350 startcol = *col; 5351 FOR_ALL_FRAMES(frp, topfrp->fr_child) 5352 { 5353 if (topfrp->fr_layout == FR_ROW) 5354 *row = startrow; // all frames are at the same row 5355 else 5356 *col = startcol; // all frames are at the same col 5357 frame_comp_pos(frp, row, col); 5358 } 5359 } 5360 } 5361 5362 /* 5363 * Set current window height and take care of repositioning other windows to 5364 * fit around it. 5365 */ 5366 void 5367 win_setheight(int height) 5368 { 5369 win_setheight_win(height, curwin); 5370 } 5371 5372 /* 5373 * Set the window height of window "win" and take care of repositioning other 5374 * windows to fit around it. 5375 */ 5376 void 5377 win_setheight_win(int height, win_T *win) 5378 { 5379 int row; 5380 5381 if (win == curwin) 5382 { 5383 // Always keep current window at least one line high, even when 5384 // 'winminheight' is zero. 5385 if (height < p_wmh) 5386 height = p_wmh; 5387 if (height == 0) 5388 height = 1; 5389 height += WINBAR_HEIGHT(curwin); 5390 } 5391 5392 frame_setheight(win->w_frame, height + win->w_status_height); 5393 5394 // recompute the window positions 5395 row = win_comp_pos(); 5396 5397 /* 5398 * If there is extra space created between the last window and the command 5399 * line, clear it. 5400 */ 5401 if (full_screen && msg_scrolled == 0 && row < cmdline_row) 5402 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5403 cmdline_row = row; 5404 msg_row = row; 5405 msg_col = 0; 5406 5407 redraw_all_later(NOT_VALID); 5408 } 5409 5410 /* 5411 * Set the height of a frame to "height" and take care that all frames and 5412 * windows inside it are resized. Also resize frames on the left and right if 5413 * the are in the same FR_ROW frame. 5414 * 5415 * Strategy: 5416 * If the frame is part of a FR_COL frame, try fitting the frame in that 5417 * frame. If that doesn't work (the FR_COL frame is too small), recursively 5418 * go to containing frames to resize them and make room. 5419 * If the frame is part of a FR_ROW frame, all frames must be resized as well. 5420 * Check for the minimal height of the FR_ROW frame. 5421 * At the top level we can also use change the command line height. 5422 */ 5423 static void 5424 frame_setheight(frame_T *curfrp, int height) 5425 { 5426 int room; // total number of lines available 5427 int take; // number of lines taken from other windows 5428 int room_cmdline; // lines available from cmdline 5429 int run; 5430 frame_T *frp; 5431 int h; 5432 int room_reserved; 5433 5434 // If the height already is the desired value, nothing to do. 5435 if (curfrp->fr_height == height) 5436 return; 5437 5438 if (curfrp->fr_parent == NULL) 5439 { 5440 // topframe: can only change the command line 5441 if (height > ROWS_AVAIL) 5442 height = ROWS_AVAIL; 5443 if (height > 0) 5444 frame_new_height(curfrp, height, FALSE, FALSE); 5445 } 5446 else if (curfrp->fr_parent->fr_layout == FR_ROW) 5447 { 5448 // Row of frames: Also need to resize frames left and right of this 5449 // one. First check for the minimal height of these. 5450 h = frame_minheight(curfrp->fr_parent, NULL); 5451 if (height < h) 5452 height = h; 5453 frame_setheight(curfrp->fr_parent, height); 5454 } 5455 else 5456 { 5457 /* 5458 * Column of frames: try to change only frames in this column. 5459 */ 5460 /* 5461 * Do this twice: 5462 * 1: compute room available, if it's not enough try resizing the 5463 * containing frame. 5464 * 2: compute the room available and adjust the height to it. 5465 * Try not to reduce the height of a window with 'winfixheight' set. 5466 */ 5467 for (run = 1; run <= 2; ++run) 5468 { 5469 room = 0; 5470 room_reserved = 0; 5471 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5472 { 5473 if (frp != curfrp 5474 && frp->fr_win != NULL 5475 && frp->fr_win->w_p_wfh) 5476 room_reserved += frp->fr_height; 5477 room += frp->fr_height; 5478 if (frp != curfrp) 5479 room -= frame_minheight(frp, NULL); 5480 } 5481 if (curfrp->fr_width != Columns) 5482 room_cmdline = 0; 5483 else 5484 { 5485 room_cmdline = Rows - p_ch - (lastwin->w_winrow 5486 + VISIBLE_HEIGHT(lastwin) 5487 + lastwin->w_status_height); 5488 if (room_cmdline < 0) 5489 room_cmdline = 0; 5490 } 5491 5492 if (height <= room + room_cmdline) 5493 break; 5494 if (run == 2 || curfrp->fr_width == Columns) 5495 { 5496 if (height > room + room_cmdline) 5497 height = room + room_cmdline; 5498 break; 5499 } 5500 frame_setheight(curfrp->fr_parent, height 5501 + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1); 5502 } 5503 5504 /* 5505 * Compute the number of lines we will take from others frames (can be 5506 * negative!). 5507 */ 5508 take = height - curfrp->fr_height; 5509 5510 // If there is not enough room, also reduce the height of a window 5511 // with 'winfixheight' set. 5512 if (height > room + room_cmdline - room_reserved) 5513 room_reserved = room + room_cmdline - height; 5514 // If there is only a 'winfixheight' window and making the 5515 // window smaller, need to make the other window taller. 5516 if (take < 0 && room - curfrp->fr_height < room_reserved) 5517 room_reserved = 0; 5518 5519 if (take > 0 && room_cmdline > 0) 5520 { 5521 // use lines from cmdline first 5522 if (take < room_cmdline) 5523 room_cmdline = take; 5524 take -= room_cmdline; 5525 topframe->fr_height += room_cmdline; 5526 } 5527 5528 /* 5529 * set the current frame to the new height 5530 */ 5531 frame_new_height(curfrp, height, FALSE, FALSE); 5532 5533 /* 5534 * First take lines from the frames after the current frame. If 5535 * that is not enough, takes lines from frames above the current 5536 * frame. 5537 */ 5538 for (run = 0; run < 2; ++run) 5539 { 5540 if (run == 0) 5541 frp = curfrp->fr_next; // 1st run: start with next window 5542 else 5543 frp = curfrp->fr_prev; // 2nd run: start with prev window 5544 while (frp != NULL && take != 0) 5545 { 5546 h = frame_minheight(frp, NULL); 5547 if (room_reserved > 0 5548 && frp->fr_win != NULL 5549 && frp->fr_win->w_p_wfh) 5550 { 5551 if (room_reserved >= frp->fr_height) 5552 room_reserved -= frp->fr_height; 5553 else 5554 { 5555 if (frp->fr_height - room_reserved > take) 5556 room_reserved = frp->fr_height - take; 5557 take -= frp->fr_height - room_reserved; 5558 frame_new_height(frp, room_reserved, FALSE, FALSE); 5559 room_reserved = 0; 5560 } 5561 } 5562 else 5563 { 5564 if (frp->fr_height - take < h) 5565 { 5566 take -= frp->fr_height - h; 5567 frame_new_height(frp, h, FALSE, FALSE); 5568 } 5569 else 5570 { 5571 frame_new_height(frp, frp->fr_height - take, 5572 FALSE, FALSE); 5573 take = 0; 5574 } 5575 } 5576 if (run == 0) 5577 frp = frp->fr_next; 5578 else 5579 frp = frp->fr_prev; 5580 } 5581 } 5582 } 5583 } 5584 5585 /* 5586 * Set current window width and take care of repositioning other windows to 5587 * fit around it. 5588 */ 5589 void 5590 win_setwidth(int width) 5591 { 5592 win_setwidth_win(width, curwin); 5593 } 5594 5595 void 5596 win_setwidth_win(int width, win_T *wp) 5597 { 5598 // Always keep current window at least one column wide, even when 5599 // 'winminwidth' is zero. 5600 if (wp == curwin) 5601 { 5602 if (width < p_wmw) 5603 width = p_wmw; 5604 if (width == 0) 5605 width = 1; 5606 } 5607 5608 frame_setwidth(wp->w_frame, width + wp->w_vsep_width); 5609 5610 // recompute the window positions 5611 (void)win_comp_pos(); 5612 5613 redraw_all_later(NOT_VALID); 5614 } 5615 5616 /* 5617 * Set the width of a frame to "width" and take care that all frames and 5618 * windows inside it are resized. Also resize frames above and below if the 5619 * are in the same FR_ROW frame. 5620 * 5621 * Strategy is similar to frame_setheight(). 5622 */ 5623 static void 5624 frame_setwidth(frame_T *curfrp, int width) 5625 { 5626 int room; // total number of lines available 5627 int take; // number of lines taken from other windows 5628 int run; 5629 frame_T *frp; 5630 int w; 5631 int room_reserved; 5632 5633 // If the width already is the desired value, nothing to do. 5634 if (curfrp->fr_width == width) 5635 return; 5636 5637 if (curfrp->fr_parent == NULL) 5638 // topframe: can't change width 5639 return; 5640 5641 if (curfrp->fr_parent->fr_layout == FR_COL) 5642 { 5643 // Column of frames: Also need to resize frames above and below of 5644 // this one. First check for the minimal width of these. 5645 w = frame_minwidth(curfrp->fr_parent, NULL); 5646 if (width < w) 5647 width = w; 5648 frame_setwidth(curfrp->fr_parent, width); 5649 } 5650 else 5651 { 5652 /* 5653 * Row of frames: try to change only frames in this row. 5654 * 5655 * Do this twice: 5656 * 1: compute room available, if it's not enough try resizing the 5657 * containing frame. 5658 * 2: compute the room available and adjust the width to it. 5659 */ 5660 for (run = 1; run <= 2; ++run) 5661 { 5662 room = 0; 5663 room_reserved = 0; 5664 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5665 { 5666 if (frp != curfrp 5667 && frp->fr_win != NULL 5668 && frp->fr_win->w_p_wfw) 5669 room_reserved += frp->fr_width; 5670 room += frp->fr_width; 5671 if (frp != curfrp) 5672 room -= frame_minwidth(frp, NULL); 5673 } 5674 5675 if (width <= room) 5676 break; 5677 if (run == 2 || curfrp->fr_height >= ROWS_AVAIL) 5678 { 5679 if (width > room) 5680 width = room; 5681 break; 5682 } 5683 frame_setwidth(curfrp->fr_parent, width 5684 + frame_minwidth(curfrp->fr_parent, NOWIN) - (int)p_wmw - 1); 5685 } 5686 5687 /* 5688 * Compute the number of lines we will take from others frames (can be 5689 * negative!). 5690 */ 5691 take = width - curfrp->fr_width; 5692 5693 // If there is not enough room, also reduce the width of a window 5694 // with 'winfixwidth' set. 5695 if (width > room - room_reserved) 5696 room_reserved = room - width; 5697 // If there is only a 'winfixwidth' window and making the 5698 // window smaller, need to make the other window narrower. 5699 if (take < 0 && room - curfrp->fr_width < room_reserved) 5700 room_reserved = 0; 5701 5702 /* 5703 * set the current frame to the new width 5704 */ 5705 frame_new_width(curfrp, width, FALSE, FALSE); 5706 5707 /* 5708 * First take lines from the frames right of the current frame. If 5709 * that is not enough, takes lines from frames left of the current 5710 * frame. 5711 */ 5712 for (run = 0; run < 2; ++run) 5713 { 5714 if (run == 0) 5715 frp = curfrp->fr_next; // 1st run: start with next window 5716 else 5717 frp = curfrp->fr_prev; // 2nd run: start with prev window 5718 while (frp != NULL && take != 0) 5719 { 5720 w = frame_minwidth(frp, NULL); 5721 if (room_reserved > 0 5722 && frp->fr_win != NULL 5723 && frp->fr_win->w_p_wfw) 5724 { 5725 if (room_reserved >= frp->fr_width) 5726 room_reserved -= frp->fr_width; 5727 else 5728 { 5729 if (frp->fr_width - room_reserved > take) 5730 room_reserved = frp->fr_width - take; 5731 take -= frp->fr_width - room_reserved; 5732 frame_new_width(frp, room_reserved, FALSE, FALSE); 5733 room_reserved = 0; 5734 } 5735 } 5736 else 5737 { 5738 if (frp->fr_width - take < w) 5739 { 5740 take -= frp->fr_width - w; 5741 frame_new_width(frp, w, FALSE, FALSE); 5742 } 5743 else 5744 { 5745 frame_new_width(frp, frp->fr_width - take, 5746 FALSE, FALSE); 5747 take = 0; 5748 } 5749 } 5750 if (run == 0) 5751 frp = frp->fr_next; 5752 else 5753 frp = frp->fr_prev; 5754 } 5755 } 5756 } 5757 } 5758 5759 /* 5760 * Check 'winminheight' for a valid value and reduce it if needed. 5761 */ 5762 void 5763 win_setminheight(void) 5764 { 5765 int room; 5766 int needed; 5767 int first = TRUE; 5768 5769 // loop until there is a 'winminheight' that is possible 5770 while (p_wmh > 0) 5771 { 5772 room = Rows - p_ch; 5773 needed = frame_minheight(topframe, NULL); 5774 if (room >= needed) 5775 break; 5776 --p_wmh; 5777 if (first) 5778 { 5779 emsg(_(e_noroom)); 5780 first = FALSE; 5781 } 5782 } 5783 } 5784 5785 /* 5786 * Check 'winminwidth' for a valid value and reduce it if needed. 5787 */ 5788 void 5789 win_setminwidth(void) 5790 { 5791 int room; 5792 int needed; 5793 int first = TRUE; 5794 5795 // loop until there is a 'winminheight' that is possible 5796 while (p_wmw > 0) 5797 { 5798 room = Columns; 5799 needed = frame_minwidth(topframe, NULL); 5800 if (room >= needed) 5801 break; 5802 --p_wmw; 5803 if (first) 5804 { 5805 emsg(_(e_noroom)); 5806 first = FALSE; 5807 } 5808 } 5809 } 5810 5811 /* 5812 * Status line of dragwin is dragged "offset" lines down (negative is up). 5813 */ 5814 void 5815 win_drag_status_line(win_T *dragwin, int offset) 5816 { 5817 frame_T *curfr; 5818 frame_T *fr; 5819 int room; 5820 int row; 5821 int up; // if TRUE, drag status line up, otherwise down 5822 int n; 5823 5824 fr = dragwin->w_frame; 5825 curfr = fr; 5826 if (fr != topframe) // more than one window 5827 { 5828 fr = fr->fr_parent; 5829 // When the parent frame is not a column of frames, its parent should 5830 // be. 5831 if (fr->fr_layout != FR_COL) 5832 { 5833 curfr = fr; 5834 if (fr != topframe) // only a row of windows, may drag statusline 5835 fr = fr->fr_parent; 5836 } 5837 } 5838 5839 // If this is the last frame in a column, may want to resize the parent 5840 // frame instead (go two up to skip a row of frames). 5841 while (curfr != topframe && curfr->fr_next == NULL) 5842 { 5843 if (fr != topframe) 5844 fr = fr->fr_parent; 5845 curfr = fr; 5846 if (fr != topframe) 5847 fr = fr->fr_parent; 5848 } 5849 5850 if (offset < 0) // drag up 5851 { 5852 up = TRUE; 5853 offset = -offset; 5854 // sum up the room of the current frame and above it 5855 if (fr == curfr) 5856 { 5857 // only one window 5858 room = fr->fr_height - frame_minheight(fr, NULL); 5859 } 5860 else 5861 { 5862 room = 0; 5863 for (fr = fr->fr_child; ; fr = fr->fr_next) 5864 { 5865 room += fr->fr_height - frame_minheight(fr, NULL); 5866 if (fr == curfr) 5867 break; 5868 } 5869 } 5870 fr = curfr->fr_next; // put fr at frame that grows 5871 } 5872 else // drag down 5873 { 5874 up = FALSE; 5875 /* 5876 * Only dragging the last status line can reduce p_ch. 5877 */ 5878 room = Rows - cmdline_row; 5879 if (curfr->fr_next == NULL) 5880 room -= 1; 5881 else 5882 room -= p_ch; 5883 if (room < 0) 5884 room = 0; 5885 // sum up the room of frames below of the current one 5886 FOR_ALL_FRAMES(fr, curfr->fr_next) 5887 room += fr->fr_height - frame_minheight(fr, NULL); 5888 fr = curfr; // put fr at window that grows 5889 } 5890 5891 if (room < offset) // Not enough room 5892 offset = room; // Move as far as we can 5893 if (offset <= 0) 5894 return; 5895 5896 /* 5897 * Grow frame fr by "offset" lines. 5898 * Doesn't happen when dragging the last status line up. 5899 */ 5900 if (fr != NULL) 5901 frame_new_height(fr, fr->fr_height + offset, up, FALSE); 5902 5903 if (up) 5904 fr = curfr; // current frame gets smaller 5905 else 5906 fr = curfr->fr_next; // next frame gets smaller 5907 5908 /* 5909 * Now make the other frames smaller. 5910 */ 5911 while (fr != NULL && offset > 0) 5912 { 5913 n = frame_minheight(fr, NULL); 5914 if (fr->fr_height - offset <= n) 5915 { 5916 offset -= fr->fr_height - n; 5917 frame_new_height(fr, n, !up, FALSE); 5918 } 5919 else 5920 { 5921 frame_new_height(fr, fr->fr_height - offset, !up, FALSE); 5922 break; 5923 } 5924 if (up) 5925 fr = fr->fr_prev; 5926 else 5927 fr = fr->fr_next; 5928 } 5929 row = win_comp_pos(); 5930 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5931 cmdline_row = row; 5932 p_ch = Rows - cmdline_row; 5933 if (p_ch < 1) 5934 p_ch = 1; 5935 curtab->tp_ch_used = p_ch; 5936 redraw_all_later(SOME_VALID); 5937 showmode(); 5938 } 5939 5940 /* 5941 * Separator line of dragwin is dragged "offset" lines right (negative is left). 5942 */ 5943 void 5944 win_drag_vsep_line(win_T *dragwin, int offset) 5945 { 5946 frame_T *curfr; 5947 frame_T *fr; 5948 int room; 5949 int left; // if TRUE, drag separator line left, otherwise right 5950 int n; 5951 5952 fr = dragwin->w_frame; 5953 if (fr == topframe) // only one window (cannot happen?) 5954 return; 5955 curfr = fr; 5956 fr = fr->fr_parent; 5957 // When the parent frame is not a row of frames, its parent should be. 5958 if (fr->fr_layout != FR_ROW) 5959 { 5960 if (fr == topframe) // only a column of windows (cannot happen?) 5961 return; 5962 curfr = fr; 5963 fr = fr->fr_parent; 5964 } 5965 5966 // If this is the last frame in a row, may want to resize a parent 5967 // frame instead. 5968 while (curfr->fr_next == NULL) 5969 { 5970 if (fr == topframe) 5971 break; 5972 curfr = fr; 5973 fr = fr->fr_parent; 5974 if (fr != topframe) 5975 { 5976 curfr = fr; 5977 fr = fr->fr_parent; 5978 } 5979 } 5980 5981 if (offset < 0) // drag left 5982 { 5983 left = TRUE; 5984 offset = -offset; 5985 // sum up the room of the current frame and left of it 5986 room = 0; 5987 for (fr = fr->fr_child; ; fr = fr->fr_next) 5988 { 5989 room += fr->fr_width - frame_minwidth(fr, NULL); 5990 if (fr == curfr) 5991 break; 5992 } 5993 fr = curfr->fr_next; // put fr at frame that grows 5994 } 5995 else // drag right 5996 { 5997 left = FALSE; 5998 // sum up the room of frames right of the current one 5999 room = 0; 6000 FOR_ALL_FRAMES(fr, curfr->fr_next) 6001 room += fr->fr_width - frame_minwidth(fr, NULL); 6002 fr = curfr; // put fr at window that grows 6003 } 6004 6005 if (room < offset) // Not enough room 6006 offset = room; // Move as far as we can 6007 if (offset <= 0) // No room at all, quit. 6008 return; 6009 if (fr == NULL) 6010 return; // Safety check, should not happen. 6011 6012 // grow frame fr by offset lines 6013 frame_new_width(fr, fr->fr_width + offset, left, FALSE); 6014 6015 // shrink other frames: current and at the left or at the right 6016 if (left) 6017 fr = curfr; // current frame gets smaller 6018 else 6019 fr = curfr->fr_next; // next frame gets smaller 6020 6021 while (fr != NULL && offset > 0) 6022 { 6023 n = frame_minwidth(fr, NULL); 6024 if (fr->fr_width - offset <= n) 6025 { 6026 offset -= fr->fr_width - n; 6027 frame_new_width(fr, n, !left, FALSE); 6028 } 6029 else 6030 { 6031 frame_new_width(fr, fr->fr_width - offset, !left, FALSE); 6032 break; 6033 } 6034 if (left) 6035 fr = fr->fr_prev; 6036 else 6037 fr = fr->fr_next; 6038 } 6039 (void)win_comp_pos(); 6040 redraw_all_later(NOT_VALID); 6041 } 6042 6043 #define FRACTION_MULT 16384L 6044 6045 /* 6046 * Set wp->w_fraction for the current w_wrow and w_height. 6047 * Has no effect when the window is less than two lines. 6048 */ 6049 void 6050 set_fraction(win_T *wp) 6051 { 6052 if (wp->w_height > 1) 6053 // When cursor is in the first line the percentage is computed as if 6054 // it's halfway that line. Thus with two lines it is 25%, with three 6055 // lines 17%, etc. Similarly for the last line: 75%, 83%, etc. 6056 wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT 6057 + FRACTION_MULT / 2) / (long)wp->w_height; 6058 } 6059 6060 /* 6061 * Set the height of a window. 6062 * "height" excludes any window toolbar. 6063 * This takes care of the things inside the window, not what happens to the 6064 * window position, the frame or to other windows. 6065 */ 6066 void 6067 win_new_height(win_T *wp, int height) 6068 { 6069 int prev_height = wp->w_height; 6070 6071 // Don't want a negative height. Happens when splitting a tiny window. 6072 // Will equalize heights soon to fix it. 6073 if (height < 0) 6074 height = 0; 6075 if (wp->w_height == height) 6076 return; // nothing to do 6077 6078 if (wp->w_height > 0) 6079 { 6080 if (wp == curwin) 6081 // w_wrow needs to be valid. When setting 'laststatus' this may 6082 // call win_new_height() recursively. 6083 validate_cursor(); 6084 if (wp->w_height != prev_height) 6085 return; // Recursive call already changed the size, bail out here 6086 // to avoid the following to mess things up. 6087 if (wp->w_wrow != wp->w_prev_fraction_row) 6088 set_fraction(wp); 6089 } 6090 6091 wp->w_height = height; 6092 wp->w_skipcol = 0; 6093 6094 // There is no point in adjusting the scroll position when exiting. Some 6095 // values might be invalid. 6096 if (!exiting) 6097 scroll_to_fraction(wp, prev_height); 6098 } 6099 6100 void 6101 scroll_to_fraction(win_T *wp, int prev_height) 6102 { 6103 linenr_T lnum; 6104 int sline, line_size; 6105 int height = wp->w_height; 6106 6107 // Don't change w_topline in any of these cases: 6108 // - window height is 0 6109 // - 'scrollbind' is set and this isn't the current window 6110 // - window height is sufficient to display the whole buffer and first line 6111 // is visible. 6112 if (height > 0 6113 && (!wp->w_p_scb || wp == curwin) 6114 && (height < wp->w_buffer->b_ml.ml_line_count || wp->w_topline > 1)) 6115 { 6116 /* 6117 * Find a value for w_topline that shows the cursor at the same 6118 * relative position in the window as before (more or less). 6119 */ 6120 lnum = wp->w_cursor.lnum; 6121 if (lnum < 1) // can happen when starting up 6122 lnum = 1; 6123 wp->w_wrow = ((long)wp->w_fraction * (long)height - 1L) 6124 / FRACTION_MULT; 6125 line_size = plines_win_col(wp, lnum, (long)(wp->w_cursor.col)) - 1; 6126 sline = wp->w_wrow - line_size; 6127 6128 if (sline >= 0) 6129 { 6130 // Make sure the whole cursor line is visible, if possible. 6131 int rows = plines_win(wp, lnum, FALSE); 6132 6133 if (sline > wp->w_height - rows) 6134 { 6135 sline = wp->w_height - rows; 6136 wp->w_wrow -= rows - line_size; 6137 } 6138 } 6139 6140 if (sline < 0) 6141 { 6142 /* 6143 * Cursor line would go off top of screen if w_wrow was this high. 6144 * Make cursor line the first line in the window. If not enough 6145 * room use w_skipcol; 6146 */ 6147 wp->w_wrow = line_size; 6148 if (wp->w_wrow >= wp->w_height 6149 && (wp->w_width - win_col_off(wp)) > 0) 6150 { 6151 wp->w_skipcol += wp->w_width - win_col_off(wp); 6152 --wp->w_wrow; 6153 while (wp->w_wrow >= wp->w_height) 6154 { 6155 wp->w_skipcol += wp->w_width - win_col_off(wp) 6156 + win_col_off2(wp); 6157 --wp->w_wrow; 6158 } 6159 } 6160 } 6161 else if (sline > 0) 6162 { 6163 while (sline > 0 && lnum > 1) 6164 { 6165 #ifdef FEAT_FOLDING 6166 hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); 6167 if (lnum == 1) 6168 { 6169 // first line in buffer is folded 6170 line_size = 1; 6171 --sline; 6172 break; 6173 } 6174 #endif 6175 --lnum; 6176 #ifdef FEAT_DIFF 6177 if (lnum == wp->w_topline) 6178 line_size = plines_win_nofill(wp, lnum, TRUE) 6179 + wp->w_topfill; 6180 else 6181 #endif 6182 line_size = plines_win(wp, lnum, TRUE); 6183 sline -= line_size; 6184 } 6185 6186 if (sline < 0) 6187 { 6188 /* 6189 * Line we want at top would go off top of screen. Use next 6190 * line instead. 6191 */ 6192 #ifdef FEAT_FOLDING 6193 hasFoldingWin(wp, lnum, NULL, &lnum, TRUE, NULL); 6194 #endif 6195 lnum++; 6196 wp->w_wrow -= line_size + sline; 6197 } 6198 else if (sline > 0) 6199 { 6200 // First line of file reached, use that as topline. 6201 lnum = 1; 6202 wp->w_wrow -= sline; 6203 } 6204 } 6205 set_topline(wp, lnum); 6206 } 6207 6208 if (wp == curwin) 6209 { 6210 if (get_scrolloff_value()) 6211 update_topline(); 6212 curs_columns(FALSE); // validate w_wrow 6213 } 6214 if (prev_height > 0) 6215 wp->w_prev_fraction_row = wp->w_wrow; 6216 6217 win_comp_scroll(wp); 6218 redraw_win_later(wp, SOME_VALID); 6219 wp->w_redr_status = TRUE; 6220 invalidate_botline_win(wp); 6221 } 6222 6223 /* 6224 * Set the width of a window. 6225 */ 6226 void 6227 win_new_width(win_T *wp, int width) 6228 { 6229 wp->w_width = width; 6230 wp->w_lines_valid = 0; 6231 changed_line_abv_curs_win(wp); 6232 invalidate_botline_win(wp); 6233 if (wp == curwin) 6234 { 6235 update_topline(); 6236 curs_columns(TRUE); // validate w_wrow 6237 } 6238 redraw_win_later(wp, NOT_VALID); 6239 wp->w_redr_status = TRUE; 6240 } 6241 6242 void 6243 win_comp_scroll(win_T *wp) 6244 { 6245 wp->w_p_scr = ((unsigned)wp->w_height >> 1); 6246 if (wp->w_p_scr == 0) 6247 wp->w_p_scr = 1; 6248 } 6249 6250 /* 6251 * command_height: called whenever p_ch has been changed 6252 */ 6253 void 6254 command_height(void) 6255 { 6256 int h; 6257 frame_T *frp; 6258 int old_p_ch = curtab->tp_ch_used; 6259 6260 // Use the value of p_ch that we remembered. This is needed for when the 6261 // GUI starts up, we can't be sure in what order things happen. And when 6262 // p_ch was changed in another tab page. 6263 curtab->tp_ch_used = p_ch; 6264 6265 // Find bottom frame with width of screen. 6266 frp = lastwin->w_frame; 6267 while (frp->fr_width != Columns && frp->fr_parent != NULL) 6268 frp = frp->fr_parent; 6269 6270 // Avoid changing the height of a window with 'winfixheight' set. 6271 while (frp->fr_prev != NULL && frp->fr_layout == FR_LEAF 6272 && frp->fr_win->w_p_wfh) 6273 frp = frp->fr_prev; 6274 6275 if (starting != NO_SCREEN) 6276 { 6277 cmdline_row = Rows - p_ch; 6278 6279 if (p_ch > old_p_ch) // p_ch got bigger 6280 { 6281 while (p_ch > old_p_ch) 6282 { 6283 if (frp == NULL) 6284 { 6285 emsg(_(e_noroom)); 6286 p_ch = old_p_ch; 6287 curtab->tp_ch_used = p_ch; 6288 cmdline_row = Rows - p_ch; 6289 break; 6290 } 6291 h = frp->fr_height - frame_minheight(frp, NULL); 6292 if (h > p_ch - old_p_ch) 6293 h = p_ch - old_p_ch; 6294 old_p_ch += h; 6295 frame_add_height(frp, -h); 6296 frp = frp->fr_prev; 6297 } 6298 6299 // Recompute window positions. 6300 (void)win_comp_pos(); 6301 6302 // clear the lines added to cmdline 6303 if (full_screen) 6304 screen_fill((int)(cmdline_row), (int)Rows, 0, 6305 (int)Columns, ' ', ' ', 0); 6306 msg_row = cmdline_row; 6307 redraw_cmdline = TRUE; 6308 return; 6309 } 6310 6311 if (msg_row < cmdline_row) 6312 msg_row = cmdline_row; 6313 redraw_cmdline = TRUE; 6314 } 6315 frame_add_height(frp, (int)(old_p_ch - p_ch)); 6316 6317 // Recompute window positions. 6318 if (frp != lastwin->w_frame) 6319 (void)win_comp_pos(); 6320 } 6321 6322 /* 6323 * Resize frame "frp" to be "n" lines higher (negative for less high). 6324 * Also resize the frames it is contained in. 6325 */ 6326 static void 6327 frame_add_height(frame_T *frp, int n) 6328 { 6329 frame_new_height(frp, frp->fr_height + n, FALSE, FALSE); 6330 for (;;) 6331 { 6332 frp = frp->fr_parent; 6333 if (frp == NULL) 6334 break; 6335 frp->fr_height += n; 6336 } 6337 } 6338 6339 /* 6340 * Add or remove a status line for the bottom window(s), according to the 6341 * value of 'laststatus'. 6342 */ 6343 void 6344 last_status( 6345 int morewin) // pretend there are two or more windows 6346 { 6347 // Don't make a difference between horizontal or vertical split. 6348 last_status_rec(topframe, (p_ls == 2 6349 || (p_ls == 1 && (morewin || !ONE_WINDOW)))); 6350 } 6351 6352 static void 6353 last_status_rec(frame_T *fr, int statusline) 6354 { 6355 frame_T *fp; 6356 win_T *wp; 6357 6358 if (fr->fr_layout == FR_LEAF) 6359 { 6360 wp = fr->fr_win; 6361 if (wp->w_status_height != 0 && !statusline) 6362 { 6363 // remove status line 6364 win_new_height(wp, wp->w_height + 1); 6365 wp->w_status_height = 0; 6366 comp_col(); 6367 } 6368 else if (wp->w_status_height == 0 && statusline) 6369 { 6370 // Find a frame to take a line from. 6371 fp = fr; 6372 while (fp->fr_height <= frame_minheight(fp, NULL)) 6373 { 6374 if (fp == topframe) 6375 { 6376 emsg(_(e_noroom)); 6377 return; 6378 } 6379 // In a column of frames: go to frame above. If already at 6380 // the top or in a row of frames: go to parent. 6381 if (fp->fr_parent->fr_layout == FR_COL && fp->fr_prev != NULL) 6382 fp = fp->fr_prev; 6383 else 6384 fp = fp->fr_parent; 6385 } 6386 wp->w_status_height = 1; 6387 if (fp != fr) 6388 { 6389 frame_new_height(fp, fp->fr_height - 1, FALSE, FALSE); 6390 frame_fix_height(wp); 6391 (void)win_comp_pos(); 6392 } 6393 else 6394 win_new_height(wp, wp->w_height - 1); 6395 comp_col(); 6396 redraw_all_later(SOME_VALID); 6397 } 6398 } 6399 else if (fr->fr_layout == FR_ROW) 6400 { 6401 // vertically split windows, set status line for each one 6402 FOR_ALL_FRAMES(fp, fr->fr_child) 6403 last_status_rec(fp, statusline); 6404 } 6405 else 6406 { 6407 // horizontally split window, set status line for last one 6408 for (fp = fr->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 6409 ; 6410 last_status_rec(fp, statusline); 6411 } 6412 } 6413 6414 /* 6415 * Return the number of lines used by the tab page line. 6416 */ 6417 int 6418 tabline_height(void) 6419 { 6420 #ifdef FEAT_GUI_TABLINE 6421 // When the GUI has the tabline then this always returns zero. 6422 if (gui_use_tabline()) 6423 return 0; 6424 #endif 6425 switch (p_stal) 6426 { 6427 case 0: return 0; 6428 case 1: return (first_tabpage->tp_next == NULL) ? 0 : 1; 6429 } 6430 return 1; 6431 } 6432 6433 /* 6434 * Return the minimal number of rows that is needed on the screen to display 6435 * the current number of windows. 6436 */ 6437 int 6438 min_rows(void) 6439 { 6440 int total; 6441 tabpage_T *tp; 6442 int n; 6443 6444 if (firstwin == NULL) // not initialized yet 6445 return MIN_LINES; 6446 6447 total = 0; 6448 FOR_ALL_TABPAGES(tp) 6449 { 6450 n = frame_minheight(tp->tp_topframe, NULL); 6451 if (total < n) 6452 total = n; 6453 } 6454 total += tabline_height(); 6455 total += 1; // count the room for the command line 6456 return total; 6457 } 6458 6459 /* 6460 * Return TRUE if there is only one window and only one tab page, not 6461 * counting a help or preview window, unless it is the current window. 6462 * Does not count unlisted windows. 6463 */ 6464 int 6465 only_one_window(void) 6466 { 6467 int count = 0; 6468 win_T *wp; 6469 6470 #if defined(FEAT_PROP_POPUP) 6471 // If the current window is a popup then there always is another window. 6472 if (popup_is_popup(curwin)) 6473 return FALSE; 6474 #endif 6475 6476 // If there is another tab page there always is another window. 6477 if (first_tabpage->tp_next != NULL) 6478 return FALSE; 6479 6480 FOR_ALL_WINDOWS(wp) 6481 if (wp->w_buffer != NULL 6482 && (!((bt_help(wp->w_buffer) && !bt_help(curbuf)) 6483 # ifdef FEAT_QUICKFIX 6484 || wp->w_p_pvw 6485 # endif 6486 ) || wp == curwin) && wp != aucmd_win) 6487 ++count; 6488 return (count <= 1); 6489 } 6490 6491 /* 6492 * Correct the cursor line number in other windows. Used after changing the 6493 * current buffer, and before applying autocommands. 6494 * When "do_curwin" is TRUE, also check current window. 6495 */ 6496 void 6497 check_lnums(int do_curwin) 6498 { 6499 win_T *wp; 6500 tabpage_T *tp; 6501 6502 FOR_ALL_TAB_WINDOWS(tp, wp) 6503 if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) 6504 { 6505 // save the original cursor position and topline 6506 wp->w_save_cursor.w_cursor_save = wp->w_cursor; 6507 wp->w_save_cursor.w_topline_save = wp->w_topline; 6508 6509 if (wp->w_cursor.lnum > curbuf->b_ml.ml_line_count) 6510 wp->w_cursor.lnum = curbuf->b_ml.ml_line_count; 6511 if (wp->w_topline > curbuf->b_ml.ml_line_count) 6512 wp->w_topline = curbuf->b_ml.ml_line_count; 6513 6514 // save the corrected cursor position and topline 6515 wp->w_save_cursor.w_cursor_corr = wp->w_cursor; 6516 wp->w_save_cursor.w_topline_corr = wp->w_topline; 6517 } 6518 } 6519 6520 /* 6521 * Reset cursor and topline to its stored values from check_lnums(). 6522 * check_lnums() must have been called first! 6523 */ 6524 void 6525 reset_lnums() 6526 { 6527 win_T *wp; 6528 tabpage_T *tp; 6529 6530 FOR_ALL_TAB_WINDOWS(tp, wp) 6531 if (wp->w_buffer == curbuf) 6532 { 6533 // Restore the value if the autocommand didn't change it. 6534 if (EQUAL_POS(wp->w_save_cursor.w_cursor_corr, wp->w_cursor)) 6535 wp->w_cursor = wp->w_save_cursor.w_cursor_save; 6536 if (wp->w_save_cursor.w_topline_corr == wp->w_topline) 6537 wp->w_topline = wp->w_save_cursor.w_topline_save; 6538 } 6539 } 6540 6541 /* 6542 * A snapshot of the window sizes, to restore them after closing the help 6543 * window. 6544 * Only these fields are used: 6545 * fr_layout 6546 * fr_width 6547 * fr_height 6548 * fr_next 6549 * fr_child 6550 * fr_win (only valid for the old curwin, NULL otherwise) 6551 */ 6552 6553 /* 6554 * Create a snapshot of the current frame sizes. 6555 */ 6556 void 6557 make_snapshot(int idx) 6558 { 6559 clear_snapshot(curtab, idx); 6560 make_snapshot_rec(topframe, &curtab->tp_snapshot[idx]); 6561 } 6562 6563 static void 6564 make_snapshot_rec(frame_T *fr, frame_T **frp) 6565 { 6566 *frp = ALLOC_CLEAR_ONE(frame_T); 6567 if (*frp == NULL) 6568 return; 6569 (*frp)->fr_layout = fr->fr_layout; 6570 (*frp)->fr_width = fr->fr_width; 6571 (*frp)->fr_height = fr->fr_height; 6572 if (fr->fr_next != NULL) 6573 make_snapshot_rec(fr->fr_next, &((*frp)->fr_next)); 6574 if (fr->fr_child != NULL) 6575 make_snapshot_rec(fr->fr_child, &((*frp)->fr_child)); 6576 if (fr->fr_layout == FR_LEAF && fr->fr_win == curwin) 6577 (*frp)->fr_win = curwin; 6578 } 6579 6580 /* 6581 * Remove any existing snapshot. 6582 */ 6583 static void 6584 clear_snapshot(tabpage_T *tp, int idx) 6585 { 6586 clear_snapshot_rec(tp->tp_snapshot[idx]); 6587 tp->tp_snapshot[idx] = NULL; 6588 } 6589 6590 static void 6591 clear_snapshot_rec(frame_T *fr) 6592 { 6593 if (fr != NULL) 6594 { 6595 clear_snapshot_rec(fr->fr_next); 6596 clear_snapshot_rec(fr->fr_child); 6597 vim_free(fr); 6598 } 6599 } 6600 6601 /* 6602 * Restore a previously created snapshot, if there is any. 6603 * This is only done if the screen size didn't change and the window layout is 6604 * still the same. 6605 */ 6606 void 6607 restore_snapshot( 6608 int idx, 6609 int close_curwin) // closing current window 6610 { 6611 win_T *wp; 6612 6613 if (curtab->tp_snapshot[idx] != NULL 6614 && curtab->tp_snapshot[idx]->fr_width == topframe->fr_width 6615 && curtab->tp_snapshot[idx]->fr_height == topframe->fr_height 6616 && check_snapshot_rec(curtab->tp_snapshot[idx], topframe) == OK) 6617 { 6618 wp = restore_snapshot_rec(curtab->tp_snapshot[idx], topframe); 6619 win_comp_pos(); 6620 if (wp != NULL && close_curwin) 6621 win_goto(wp); 6622 redraw_all_later(NOT_VALID); 6623 } 6624 clear_snapshot(curtab, idx); 6625 } 6626 6627 /* 6628 * Check if frames "sn" and "fr" have the same layout, same following frames 6629 * and same children. And the window pointer is valid. 6630 */ 6631 static int 6632 check_snapshot_rec(frame_T *sn, frame_T *fr) 6633 { 6634 if (sn->fr_layout != fr->fr_layout 6635 || (sn->fr_next == NULL) != (fr->fr_next == NULL) 6636 || (sn->fr_child == NULL) != (fr->fr_child == NULL) 6637 || (sn->fr_next != NULL 6638 && check_snapshot_rec(sn->fr_next, fr->fr_next) == FAIL) 6639 || (sn->fr_child != NULL 6640 && check_snapshot_rec(sn->fr_child, fr->fr_child) == FAIL) 6641 || (sn->fr_win != NULL && !win_valid(sn->fr_win))) 6642 return FAIL; 6643 return OK; 6644 } 6645 6646 /* 6647 * Copy the size of snapshot frame "sn" to frame "fr". Do the same for all 6648 * following frames and children. 6649 * Returns a pointer to the old current window, or NULL. 6650 */ 6651 static win_T * 6652 restore_snapshot_rec(frame_T *sn, frame_T *fr) 6653 { 6654 win_T *wp = NULL; 6655 win_T *wp2; 6656 6657 fr->fr_height = sn->fr_height; 6658 fr->fr_width = sn->fr_width; 6659 if (fr->fr_layout == FR_LEAF) 6660 { 6661 frame_new_height(fr, fr->fr_height, FALSE, FALSE); 6662 frame_new_width(fr, fr->fr_width, FALSE, FALSE); 6663 wp = sn->fr_win; 6664 } 6665 if (sn->fr_next != NULL) 6666 { 6667 wp2 = restore_snapshot_rec(sn->fr_next, fr->fr_next); 6668 if (wp2 != NULL) 6669 wp = wp2; 6670 } 6671 if (sn->fr_child != NULL) 6672 { 6673 wp2 = restore_snapshot_rec(sn->fr_child, fr->fr_child); 6674 if (wp2 != NULL) 6675 wp = wp2; 6676 } 6677 return wp; 6678 } 6679 6680 #if defined(FEAT_GUI) || defined(PROTO) 6681 /* 6682 * Return TRUE if there is any vertically split window. 6683 */ 6684 int 6685 win_hasvertsplit(void) 6686 { 6687 frame_T *fr; 6688 6689 if (topframe->fr_layout == FR_ROW) 6690 return TRUE; 6691 6692 if (topframe->fr_layout == FR_COL) 6693 FOR_ALL_FRAMES(fr, topframe->fr_child) 6694 if (fr->fr_layout == FR_ROW) 6695 return TRUE; 6696 6697 return FALSE; 6698 } 6699 #endif 6700 6701 #if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO) 6702 int 6703 get_win_number(win_T *wp, win_T *first_win) 6704 { 6705 int i = 1; 6706 win_T *w; 6707 6708 for (w = first_win; w != NULL && w != wp; w = W_NEXT(w)) 6709 ++i; 6710 6711 if (w == NULL) 6712 return 0; 6713 else 6714 return i; 6715 } 6716 6717 int 6718 get_tab_number(tabpage_T *tp UNUSED) 6719 { 6720 int i = 1; 6721 tabpage_T *t; 6722 6723 for (t = first_tabpage; t != NULL && t != tp; t = t->tp_next) 6724 ++i; 6725 6726 if (t == NULL) 6727 return 0; 6728 else 6729 return i; 6730 } 6731 #endif 6732 6733 /* 6734 * Return TRUE if "topfrp" and its children are at the right height. 6735 */ 6736 static int 6737 frame_check_height(frame_T *topfrp, int height) 6738 { 6739 frame_T *frp; 6740 6741 if (topfrp->fr_height != height) 6742 return FALSE; 6743 6744 if (topfrp->fr_layout == FR_ROW) 6745 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6746 if (frp->fr_height != height) 6747 return FALSE; 6748 6749 return TRUE; 6750 } 6751 6752 /* 6753 * Return TRUE if "topfrp" and its children are at the right width. 6754 */ 6755 static int 6756 frame_check_width(frame_T *topfrp, int width) 6757 { 6758 frame_T *frp; 6759 6760 if (topfrp->fr_width != width) 6761 return FALSE; 6762 6763 if (topfrp->fr_layout == FR_COL) 6764 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6765 if (frp->fr_width != width) 6766 return FALSE; 6767 6768 return TRUE; 6769 } 6770 6771 #if defined(FEAT_SYN_HL) || defined(PROTO) 6772 /* 6773 * Simple int comparison function for use with qsort() 6774 */ 6775 static int 6776 int_cmp(const void *a, const void *b) 6777 { 6778 return *(const int *)a - *(const int *)b; 6779 } 6780 6781 /* 6782 * Handle setting 'colorcolumn' or 'textwidth' in window "wp". 6783 * Returns error message, NULL if it's OK. 6784 */ 6785 char * 6786 check_colorcolumn(win_T *wp) 6787 { 6788 char_u *s; 6789 int col; 6790 int count = 0; 6791 int color_cols[256]; 6792 int i; 6793 int j = 0; 6794 6795 if (wp->w_buffer == NULL) 6796 return NULL; // buffer was closed 6797 6798 for (s = wp->w_p_cc; *s != NUL && count < 255;) 6799 { 6800 if (*s == '-' || *s == '+') 6801 { 6802 // -N and +N: add to 'textwidth' 6803 col = (*s == '-') ? -1 : 1; 6804 ++s; 6805 if (!VIM_ISDIGIT(*s)) 6806 return e_invarg; 6807 col = col * getdigits(&s); 6808 if (wp->w_buffer->b_p_tw == 0) 6809 goto skip; // 'textwidth' not set, skip this item 6810 col += wp->w_buffer->b_p_tw; 6811 if (col < 0) 6812 goto skip; 6813 } 6814 else if (VIM_ISDIGIT(*s)) 6815 col = getdigits(&s); 6816 else 6817 return e_invarg; 6818 color_cols[count++] = col - 1; // 1-based to 0-based 6819 skip: 6820 if (*s == NUL) 6821 break; 6822 if (*s != ',') 6823 return e_invarg; 6824 if (*++s == NUL) 6825 return e_invarg; // illegal trailing comma as in "set cc=80," 6826 } 6827 6828 vim_free(wp->w_p_cc_cols); 6829 if (count == 0) 6830 wp->w_p_cc_cols = NULL; 6831 else 6832 { 6833 wp->w_p_cc_cols = ALLOC_MULT(int, count + 1); 6834 if (wp->w_p_cc_cols != NULL) 6835 { 6836 // sort the columns for faster usage on screen redraw inside 6837 // win_line() 6838 qsort(color_cols, count, sizeof(int), int_cmp); 6839 6840 for (i = 0; i < count; ++i) 6841 // skip duplicates 6842 if (j == 0 || wp->w_p_cc_cols[j - 1] != color_cols[i]) 6843 wp->w_p_cc_cols[j++] = color_cols[i]; 6844 wp->w_p_cc_cols[j] = -1; // end marker 6845 } 6846 } 6847 6848 return NULL; // no error 6849 } 6850 #endif 6851