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 2770 while (firstwin != NULL) 2771 (void)win_free_mem(firstwin, &dummy, NULL); 2772 2773 // No window should be used after this. Set curwin to NULL to crash 2774 // instead of using freed memory. 2775 curwin = NULL; 2776 } 2777 #endif 2778 2779 /* 2780 * Remove a window and its frame from the tree of frames. 2781 * Returns a pointer to the window that got the freed up space. 2782 */ 2783 win_T * 2784 winframe_remove( 2785 win_T *win, 2786 int *dirp UNUSED, // set to 'v' or 'h' for direction if 'ea' 2787 tabpage_T *tp) // tab page "win" is in, NULL for current 2788 { 2789 frame_T *frp, *frp2, *frp3; 2790 frame_T *frp_close = win->w_frame; 2791 win_T *wp; 2792 2793 /* 2794 * If there is only one window there is nothing to remove. 2795 */ 2796 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 2797 return NULL; 2798 2799 /* 2800 * Remove the window from its frame. 2801 */ 2802 frp2 = win_altframe(win, tp); 2803 wp = frame2win(frp2); 2804 2805 // Remove this frame from the list of frames. 2806 frame_remove(frp_close); 2807 2808 if (frp_close->fr_parent->fr_layout == FR_COL) 2809 { 2810 // When 'winfixheight' is set, try to find another frame in the column 2811 // (as close to the closed frame as possible) to distribute the height 2812 // to. 2813 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfh) 2814 { 2815 frp = frp_close->fr_prev; 2816 frp3 = frp_close->fr_next; 2817 while (frp != NULL || frp3 != NULL) 2818 { 2819 if (frp != NULL) 2820 { 2821 if (!frame_fixed_height(frp)) 2822 { 2823 frp2 = frp; 2824 wp = frame2win(frp2); 2825 break; 2826 } 2827 frp = frp->fr_prev; 2828 } 2829 if (frp3 != NULL) 2830 { 2831 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfh) 2832 { 2833 frp2 = frp3; 2834 wp = frp3->fr_win; 2835 break; 2836 } 2837 frp3 = frp3->fr_next; 2838 } 2839 } 2840 } 2841 frame_new_height(frp2, frp2->fr_height + frp_close->fr_height, 2842 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2843 *dirp = 'v'; 2844 } 2845 else 2846 { 2847 // When 'winfixwidth' is set, try to find another frame in the column 2848 // (as close to the closed frame as possible) to distribute the width 2849 // to. 2850 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfw) 2851 { 2852 frp = frp_close->fr_prev; 2853 frp3 = frp_close->fr_next; 2854 while (frp != NULL || frp3 != NULL) 2855 { 2856 if (frp != NULL) 2857 { 2858 if (!frame_fixed_width(frp)) 2859 { 2860 frp2 = frp; 2861 wp = frame2win(frp2); 2862 break; 2863 } 2864 frp = frp->fr_prev; 2865 } 2866 if (frp3 != NULL) 2867 { 2868 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfw) 2869 { 2870 frp2 = frp3; 2871 wp = frp3->fr_win; 2872 break; 2873 } 2874 frp3 = frp3->fr_next; 2875 } 2876 } 2877 } 2878 frame_new_width(frp2, frp2->fr_width + frp_close->fr_width, 2879 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2880 *dirp = 'h'; 2881 } 2882 2883 // If rows/columns go to a window below/right its positions need to be 2884 // updated. Can only be done after the sizes have been updated. 2885 if (frp2 == frp_close->fr_next) 2886 { 2887 int row = win->w_winrow; 2888 int col = win->w_wincol; 2889 2890 frame_comp_pos(frp2, &row, &col); 2891 } 2892 2893 if (frp2->fr_next == NULL && frp2->fr_prev == NULL) 2894 { 2895 // There is no other frame in this list, move its info to the parent 2896 // and remove it. 2897 frp2->fr_parent->fr_layout = frp2->fr_layout; 2898 frp2->fr_parent->fr_child = frp2->fr_child; 2899 FOR_ALL_FRAMES(frp, frp2->fr_child) 2900 frp->fr_parent = frp2->fr_parent; 2901 frp2->fr_parent->fr_win = frp2->fr_win; 2902 if (frp2->fr_win != NULL) 2903 frp2->fr_win->w_frame = frp2->fr_parent; 2904 frp = frp2->fr_parent; 2905 if (topframe->fr_child == frp2) 2906 topframe->fr_child = frp; 2907 vim_free(frp2); 2908 2909 frp2 = frp->fr_parent; 2910 if (frp2 != NULL && frp2->fr_layout == frp->fr_layout) 2911 { 2912 // The frame above the parent has the same layout, have to merge 2913 // the frames into this list. 2914 if (frp2->fr_child == frp) 2915 frp2->fr_child = frp->fr_child; 2916 frp->fr_child->fr_prev = frp->fr_prev; 2917 if (frp->fr_prev != NULL) 2918 frp->fr_prev->fr_next = frp->fr_child; 2919 for (frp3 = frp->fr_child; ; frp3 = frp3->fr_next) 2920 { 2921 frp3->fr_parent = frp2; 2922 if (frp3->fr_next == NULL) 2923 { 2924 frp3->fr_next = frp->fr_next; 2925 if (frp->fr_next != NULL) 2926 frp->fr_next->fr_prev = frp3; 2927 break; 2928 } 2929 } 2930 if (topframe->fr_child == frp) 2931 topframe->fr_child = frp2; 2932 vim_free(frp); 2933 } 2934 } 2935 2936 return wp; 2937 } 2938 2939 /* 2940 * Return a pointer to the frame that will receive the empty screen space that 2941 * is left over after "win" is closed. 2942 * 2943 * If 'splitbelow' or 'splitright' is set, the space goes above or to the left 2944 * by default. Otherwise, the free space goes below or to the right. The 2945 * result is that opening a window and then immediately closing it will 2946 * preserve the initial window layout. The 'wfh' and 'wfw' settings are 2947 * respected when possible. 2948 */ 2949 static frame_T * 2950 win_altframe( 2951 win_T *win, 2952 tabpage_T *tp) // tab page "win" is in, NULL for current 2953 { 2954 frame_T *frp; 2955 frame_T *other_fr, *target_fr; 2956 2957 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 2958 return alt_tabpage()->tp_curwin->w_frame; 2959 2960 frp = win->w_frame; 2961 2962 if (frp->fr_prev == NULL) 2963 return frp->fr_next; 2964 if (frp->fr_next == NULL) 2965 return frp->fr_prev; 2966 2967 // By default the next window will get the space that was abandoned by this 2968 // window 2969 target_fr = frp->fr_next; 2970 other_fr = frp->fr_prev; 2971 2972 // If this is part of a column of windows and 'splitbelow' is true then the 2973 // previous window will get the space. 2974 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_COL && p_sb) 2975 { 2976 target_fr = frp->fr_prev; 2977 other_fr = frp->fr_next; 2978 } 2979 2980 // If this is part of a row of windows, and 'splitright' is true then the 2981 // previous window will get the space. 2982 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW && p_spr) 2983 { 2984 target_fr = frp->fr_prev; 2985 other_fr = frp->fr_next; 2986 } 2987 2988 // If 'wfh' or 'wfw' is set for the target and not for the alternate 2989 // window, reverse the selection. 2990 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW) 2991 { 2992 if (frame_fixed_width(target_fr) && !frame_fixed_width(other_fr)) 2993 target_fr = other_fr; 2994 } 2995 else 2996 { 2997 if (frame_fixed_height(target_fr) && !frame_fixed_height(other_fr)) 2998 target_fr = other_fr; 2999 } 3000 3001 return target_fr; 3002 } 3003 3004 /* 3005 * Return the tabpage that will be used if the current one is closed. 3006 */ 3007 static tabpage_T * 3008 alt_tabpage(void) 3009 { 3010 tabpage_T *tp; 3011 3012 // Use the next tab page if possible. 3013 if (curtab->tp_next != NULL) 3014 return curtab->tp_next; 3015 3016 // Find the last but one tab page. 3017 for (tp = first_tabpage; tp->tp_next != curtab; tp = tp->tp_next) 3018 ; 3019 return tp; 3020 } 3021 3022 /* 3023 * Find the left-upper window in frame "frp". 3024 */ 3025 static win_T * 3026 frame2win(frame_T *frp) 3027 { 3028 while (frp->fr_win == NULL) 3029 frp = frp->fr_child; 3030 return frp->fr_win; 3031 } 3032 3033 /* 3034 * Return TRUE if frame "frp" contains window "wp". 3035 */ 3036 static int 3037 frame_has_win(frame_T *frp, win_T *wp) 3038 { 3039 frame_T *p; 3040 3041 if (frp->fr_layout == FR_LEAF) 3042 return frp->fr_win == wp; 3043 3044 FOR_ALL_FRAMES(p, frp->fr_child) 3045 if (frame_has_win(p, wp)) 3046 return TRUE; 3047 return FALSE; 3048 } 3049 3050 /* 3051 * Set a new height for a frame. Recursively sets the height for contained 3052 * frames and windows. Caller must take care of positions. 3053 */ 3054 static void 3055 frame_new_height( 3056 frame_T *topfrp, 3057 int height, 3058 int topfirst, // resize topmost contained frame first 3059 int wfh) // obey 'winfixheight' when there is a choice; 3060 // may cause the height not to be set 3061 { 3062 frame_T *frp; 3063 int extra_lines; 3064 int h; 3065 3066 if (topfrp->fr_win != NULL) 3067 { 3068 // Simple case: just one window. 3069 win_new_height(topfrp->fr_win, 3070 height - topfrp->fr_win->w_status_height 3071 - WINBAR_HEIGHT(topfrp->fr_win)); 3072 } 3073 else if (topfrp->fr_layout == FR_ROW) 3074 { 3075 do 3076 { 3077 // All frames in this row get the same new height. 3078 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3079 { 3080 frame_new_height(frp, height, topfirst, wfh); 3081 if (frp->fr_height > height) 3082 { 3083 // Could not fit the windows, make the whole row higher. 3084 height = frp->fr_height; 3085 break; 3086 } 3087 } 3088 } 3089 while (frp != NULL); 3090 } 3091 else // fr_layout == FR_COL 3092 { 3093 // Complicated case: Resize a column of frames. Resize the bottom 3094 // frame first, frames above that when needed. 3095 3096 frp = topfrp->fr_child; 3097 if (wfh) 3098 // Advance past frames with one window with 'wfh' set. 3099 while (frame_fixed_height(frp)) 3100 { 3101 frp = frp->fr_next; 3102 if (frp == NULL) 3103 return; // no frame without 'wfh', give up 3104 } 3105 if (!topfirst) 3106 { 3107 // Find the bottom frame of this column 3108 while (frp->fr_next != NULL) 3109 frp = frp->fr_next; 3110 if (wfh) 3111 // Advance back for frames with one window with 'wfh' set. 3112 while (frame_fixed_height(frp)) 3113 frp = frp->fr_prev; 3114 } 3115 3116 extra_lines = height - topfrp->fr_height; 3117 if (extra_lines < 0) 3118 { 3119 // reduce height of contained frames, bottom or top frame first 3120 while (frp != NULL) 3121 { 3122 h = frame_minheight(frp, NULL); 3123 if (frp->fr_height + extra_lines < h) 3124 { 3125 extra_lines += frp->fr_height - h; 3126 frame_new_height(frp, h, topfirst, wfh); 3127 } 3128 else 3129 { 3130 frame_new_height(frp, frp->fr_height + extra_lines, 3131 topfirst, wfh); 3132 break; 3133 } 3134 if (topfirst) 3135 { 3136 do 3137 frp = frp->fr_next; 3138 while (wfh && frp != NULL && frame_fixed_height(frp)); 3139 } 3140 else 3141 { 3142 do 3143 frp = frp->fr_prev; 3144 while (wfh && frp != NULL && frame_fixed_height(frp)); 3145 } 3146 // Increase "height" if we could not reduce enough frames. 3147 if (frp == NULL) 3148 height -= extra_lines; 3149 } 3150 } 3151 else if (extra_lines > 0) 3152 { 3153 // increase height of bottom or top frame 3154 frame_new_height(frp, frp->fr_height + extra_lines, topfirst, wfh); 3155 } 3156 } 3157 topfrp->fr_height = height; 3158 } 3159 3160 /* 3161 * Return TRUE if height of frame "frp" should not be changed because of 3162 * the 'winfixheight' option. 3163 */ 3164 static int 3165 frame_fixed_height(frame_T *frp) 3166 { 3167 // frame with one window: fixed height if 'winfixheight' set. 3168 if (frp->fr_win != NULL) 3169 return frp->fr_win->w_p_wfh; 3170 3171 if (frp->fr_layout == FR_ROW) 3172 { 3173 // The frame is fixed height if one of the frames in the row is fixed 3174 // height. 3175 FOR_ALL_FRAMES(frp, frp->fr_child) 3176 if (frame_fixed_height(frp)) 3177 return TRUE; 3178 return FALSE; 3179 } 3180 3181 // frp->fr_layout == FR_COL: The frame is fixed height if all of the 3182 // frames in the row are fixed height. 3183 FOR_ALL_FRAMES(frp, frp->fr_child) 3184 if (!frame_fixed_height(frp)) 3185 return FALSE; 3186 return TRUE; 3187 } 3188 3189 /* 3190 * Return TRUE if width of frame "frp" should not be changed because of 3191 * the 'winfixwidth' option. 3192 */ 3193 static int 3194 frame_fixed_width(frame_T *frp) 3195 { 3196 // frame with one window: fixed width if 'winfixwidth' set. 3197 if (frp->fr_win != NULL) 3198 return frp->fr_win->w_p_wfw; 3199 3200 if (frp->fr_layout == FR_COL) 3201 { 3202 // The frame is fixed width if one of the frames in the row is fixed 3203 // width. 3204 FOR_ALL_FRAMES(frp, frp->fr_child) 3205 if (frame_fixed_width(frp)) 3206 return TRUE; 3207 return FALSE; 3208 } 3209 3210 // frp->fr_layout == FR_ROW: The frame is fixed width if all of the 3211 // frames in the row are fixed width. 3212 FOR_ALL_FRAMES(frp, frp->fr_child) 3213 if (!frame_fixed_width(frp)) 3214 return FALSE; 3215 return TRUE; 3216 } 3217 3218 /* 3219 * Add a status line to windows at the bottom of "frp". 3220 * Note: Does not check if there is room! 3221 */ 3222 static void 3223 frame_add_statusline(frame_T *frp) 3224 { 3225 win_T *wp; 3226 3227 if (frp->fr_layout == FR_LEAF) 3228 { 3229 wp = frp->fr_win; 3230 if (wp->w_status_height == 0) 3231 { 3232 if (wp->w_height > 0) // don't make it negative 3233 --wp->w_height; 3234 wp->w_status_height = STATUS_HEIGHT; 3235 } 3236 } 3237 else if (frp->fr_layout == FR_ROW) 3238 { 3239 // Handle all the frames in the row. 3240 FOR_ALL_FRAMES(frp, frp->fr_child) 3241 frame_add_statusline(frp); 3242 } 3243 else // frp->fr_layout == FR_COL 3244 { 3245 // Only need to handle the last frame in the column. 3246 for (frp = frp->fr_child; frp->fr_next != NULL; frp = frp->fr_next) 3247 ; 3248 frame_add_statusline(frp); 3249 } 3250 } 3251 3252 /* 3253 * Set width of a frame. Handles recursively going through contained frames. 3254 * May remove separator line for windows at the right side (for win_close()). 3255 */ 3256 static void 3257 frame_new_width( 3258 frame_T *topfrp, 3259 int width, 3260 int leftfirst, // resize leftmost contained frame first 3261 int wfw) // obey 'winfixwidth' when there is a choice; 3262 // may cause the width not to be set 3263 { 3264 frame_T *frp; 3265 int extra_cols; 3266 int w; 3267 win_T *wp; 3268 3269 if (topfrp->fr_layout == FR_LEAF) 3270 { 3271 // Simple case: just one window. 3272 wp = topfrp->fr_win; 3273 // Find out if there are any windows right of this one. 3274 for (frp = topfrp; frp->fr_parent != NULL; frp = frp->fr_parent) 3275 if (frp->fr_parent->fr_layout == FR_ROW && frp->fr_next != NULL) 3276 break; 3277 if (frp->fr_parent == NULL) 3278 wp->w_vsep_width = 0; 3279 win_new_width(wp, width - wp->w_vsep_width); 3280 } 3281 else if (topfrp->fr_layout == FR_COL) 3282 { 3283 do 3284 { 3285 // All frames in this column get the same new width. 3286 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3287 { 3288 frame_new_width(frp, width, leftfirst, wfw); 3289 if (frp->fr_width > width) 3290 { 3291 // Could not fit the windows, make whole column wider. 3292 width = frp->fr_width; 3293 break; 3294 } 3295 } 3296 } while (frp != NULL); 3297 } 3298 else // fr_layout == FR_ROW 3299 { 3300 // Complicated case: Resize a row of frames. Resize the rightmost 3301 // frame first, frames left of it when needed. 3302 3303 frp = topfrp->fr_child; 3304 if (wfw) 3305 // Advance past frames with one window with 'wfw' set. 3306 while (frame_fixed_width(frp)) 3307 { 3308 frp = frp->fr_next; 3309 if (frp == NULL) 3310 return; // no frame without 'wfw', give up 3311 } 3312 if (!leftfirst) 3313 { 3314 // Find the rightmost frame of this row 3315 while (frp->fr_next != NULL) 3316 frp = frp->fr_next; 3317 if (wfw) 3318 // Advance back for frames with one window with 'wfw' set. 3319 while (frame_fixed_width(frp)) 3320 frp = frp->fr_prev; 3321 } 3322 3323 extra_cols = width - topfrp->fr_width; 3324 if (extra_cols < 0) 3325 { 3326 // reduce frame width, rightmost frame first 3327 while (frp != NULL) 3328 { 3329 w = frame_minwidth(frp, NULL); 3330 if (frp->fr_width + extra_cols < w) 3331 { 3332 extra_cols += frp->fr_width - w; 3333 frame_new_width(frp, w, leftfirst, wfw); 3334 } 3335 else 3336 { 3337 frame_new_width(frp, frp->fr_width + extra_cols, 3338 leftfirst, wfw); 3339 break; 3340 } 3341 if (leftfirst) 3342 { 3343 do 3344 frp = frp->fr_next; 3345 while (wfw && frp != NULL && frame_fixed_width(frp)); 3346 } 3347 else 3348 { 3349 do 3350 frp = frp->fr_prev; 3351 while (wfw && frp != NULL && frame_fixed_width(frp)); 3352 } 3353 // Increase "width" if we could not reduce enough frames. 3354 if (frp == NULL) 3355 width -= extra_cols; 3356 } 3357 } 3358 else if (extra_cols > 0) 3359 { 3360 // increase width of rightmost frame 3361 frame_new_width(frp, frp->fr_width + extra_cols, leftfirst, wfw); 3362 } 3363 } 3364 topfrp->fr_width = width; 3365 } 3366 3367 /* 3368 * Add the vertical separator to windows at the right side of "frp". 3369 * Note: Does not check if there is room! 3370 */ 3371 static void 3372 frame_add_vsep(frame_T *frp) 3373 { 3374 win_T *wp; 3375 3376 if (frp->fr_layout == FR_LEAF) 3377 { 3378 wp = frp->fr_win; 3379 if (wp->w_vsep_width == 0) 3380 { 3381 if (wp->w_width > 0) // don't make it negative 3382 --wp->w_width; 3383 wp->w_vsep_width = 1; 3384 } 3385 } 3386 else if (frp->fr_layout == FR_COL) 3387 { 3388 // Handle all the frames in the column. 3389 FOR_ALL_FRAMES(frp, frp->fr_child) 3390 frame_add_vsep(frp); 3391 } 3392 else // frp->fr_layout == FR_ROW 3393 { 3394 // Only need to handle the last frame in the row. 3395 frp = frp->fr_child; 3396 while (frp->fr_next != NULL) 3397 frp = frp->fr_next; 3398 frame_add_vsep(frp); 3399 } 3400 } 3401 3402 /* 3403 * Set frame width from the window it contains. 3404 */ 3405 static void 3406 frame_fix_width(win_T *wp) 3407 { 3408 wp->w_frame->fr_width = wp->w_width + wp->w_vsep_width; 3409 } 3410 3411 /* 3412 * Set frame height from the window it contains. 3413 */ 3414 static void 3415 frame_fix_height(win_T *wp) 3416 { 3417 wp->w_frame->fr_height = VISIBLE_HEIGHT(wp) + wp->w_status_height; 3418 } 3419 3420 /* 3421 * Compute the minimal height for frame "topfrp". 3422 * Uses the 'winminheight' option. 3423 * When "next_curwin" isn't NULL, use p_wh for this window. 3424 * When "next_curwin" is NOWIN, don't use at least one line for the current 3425 * window. 3426 */ 3427 static int 3428 frame_minheight(frame_T *topfrp, win_T *next_curwin) 3429 { 3430 frame_T *frp; 3431 int m; 3432 int n; 3433 3434 if (topfrp->fr_win != NULL) 3435 { 3436 if (topfrp->fr_win == next_curwin) 3437 m = p_wh + topfrp->fr_win->w_status_height; 3438 else 3439 { 3440 // window: minimal height of the window plus status line 3441 m = p_wmh + topfrp->fr_win->w_status_height; 3442 if (topfrp->fr_win == curwin && next_curwin == NULL) 3443 { 3444 // Current window is minimal one line high and WinBar is 3445 // visible. 3446 if (p_wmh == 0) 3447 ++m; 3448 m += WINBAR_HEIGHT(curwin); 3449 } 3450 } 3451 } 3452 else if (topfrp->fr_layout == FR_ROW) 3453 { 3454 // get the minimal height from each frame in this row 3455 m = 0; 3456 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3457 { 3458 n = frame_minheight(frp, next_curwin); 3459 if (n > m) 3460 m = n; 3461 } 3462 } 3463 else 3464 { 3465 // Add up the minimal heights for all frames in this column. 3466 m = 0; 3467 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3468 m += frame_minheight(frp, next_curwin); 3469 } 3470 3471 return m; 3472 } 3473 3474 /* 3475 * Compute the minimal width for frame "topfrp". 3476 * When "next_curwin" isn't NULL, use p_wiw for this window. 3477 * When "next_curwin" is NOWIN, don't use at least one column for the current 3478 * window. 3479 */ 3480 static int 3481 frame_minwidth( 3482 frame_T *topfrp, 3483 win_T *next_curwin) // use p_wh and p_wiw for next_curwin 3484 { 3485 frame_T *frp; 3486 int m, n; 3487 3488 if (topfrp->fr_win != NULL) 3489 { 3490 if (topfrp->fr_win == next_curwin) 3491 m = p_wiw + topfrp->fr_win->w_vsep_width; 3492 else 3493 { 3494 // window: minimal width of the window plus separator column 3495 m = p_wmw + topfrp->fr_win->w_vsep_width; 3496 // Current window is minimal one column wide 3497 if (p_wmw == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3498 ++m; 3499 } 3500 } 3501 else if (topfrp->fr_layout == FR_COL) 3502 { 3503 // get the minimal width from each frame in this column 3504 m = 0; 3505 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3506 { 3507 n = frame_minwidth(frp, next_curwin); 3508 if (n > m) 3509 m = n; 3510 } 3511 } 3512 else 3513 { 3514 // Add up the minimal widths for all frames in this row. 3515 m = 0; 3516 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3517 m += frame_minwidth(frp, next_curwin); 3518 } 3519 3520 return m; 3521 } 3522 3523 3524 /* 3525 * Try to close all windows except current one. 3526 * Buffers in the other windows become hidden if 'hidden' is set, or '!' is 3527 * used and the buffer was modified. 3528 * 3529 * Used by ":bdel" and ":only". 3530 */ 3531 void 3532 close_others( 3533 int message, 3534 int forceit) // always hide all other windows 3535 { 3536 win_T *wp; 3537 win_T *nextwp; 3538 int r; 3539 3540 if (one_window()) 3541 { 3542 if (message && !autocmd_busy) 3543 msg(_(m_onlyone)); 3544 return; 3545 } 3546 3547 // Be very careful here: autocommands may change the window layout. 3548 for (wp = firstwin; win_valid(wp); wp = nextwp) 3549 { 3550 nextwp = wp->w_next; 3551 if (wp != curwin) // don't close current window 3552 { 3553 3554 // Check if it's allowed to abandon this window 3555 r = can_abandon(wp->w_buffer, forceit); 3556 if (!win_valid(wp)) // autocommands messed wp up 3557 { 3558 nextwp = firstwin; 3559 continue; 3560 } 3561 if (!r) 3562 { 3563 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 3564 if (message && (p_confirm || cmdmod.confirm) && p_write) 3565 { 3566 dialog_changed(wp->w_buffer, FALSE); 3567 if (!win_valid(wp)) // autocommands messed wp up 3568 { 3569 nextwp = firstwin; 3570 continue; 3571 } 3572 } 3573 if (bufIsChanged(wp->w_buffer)) 3574 #endif 3575 continue; 3576 } 3577 win_close(wp, !buf_hide(wp->w_buffer) 3578 && !bufIsChanged(wp->w_buffer)); 3579 } 3580 } 3581 3582 if (message && !ONE_WINDOW) 3583 emsg(_("E445: Other window contains changes")); 3584 } 3585 3586 static void 3587 win_init_empty(win_T *wp) 3588 { 3589 redraw_win_later(wp, NOT_VALID); 3590 wp->w_lines_valid = 0; 3591 wp->w_cursor.lnum = 1; 3592 wp->w_curswant = wp->w_cursor.col = 0; 3593 wp->w_cursor.coladd = 0; 3594 wp->w_pcmark.lnum = 1; // pcmark not cleared but set to line 1 3595 wp->w_pcmark.col = 0; 3596 wp->w_prev_pcmark.lnum = 0; 3597 wp->w_prev_pcmark.col = 0; 3598 wp->w_topline = 1; 3599 #ifdef FEAT_DIFF 3600 wp->w_topfill = 0; 3601 #endif 3602 wp->w_botline = 2; 3603 #if defined(FEAT_SYN_HL) || defined(FEAT_SPELL) 3604 wp->w_s = &wp->w_buffer->b_s; 3605 #endif 3606 } 3607 3608 /* 3609 * Init the current window "curwin". 3610 * Called when a new file is being edited. 3611 */ 3612 void 3613 curwin_init(void) 3614 { 3615 win_init_empty(curwin); 3616 } 3617 3618 /* 3619 * Allocate the first window and put an empty buffer in it. 3620 * Called from main(). 3621 * Return FAIL when something goes wrong (out of memory). 3622 */ 3623 int 3624 win_alloc_first(void) 3625 { 3626 if (win_alloc_firstwin(NULL) == FAIL) 3627 return FAIL; 3628 3629 first_tabpage = alloc_tabpage(); 3630 if (first_tabpage == NULL) 3631 return FAIL; 3632 first_tabpage->tp_topframe = topframe; 3633 curtab = first_tabpage; 3634 curtab->tp_firstwin = firstwin; 3635 curtab->tp_lastwin = lastwin; 3636 curtab->tp_curwin = curwin; 3637 3638 return OK; 3639 } 3640 3641 /* 3642 * Allocate and init a window that is not a regular window. 3643 * This can only be done after the first window is fully initialized, thus it 3644 * can't be in win_alloc_first(). 3645 */ 3646 win_T * 3647 win_alloc_popup_win(void) 3648 { 3649 win_T *wp; 3650 3651 wp = win_alloc(NULL, TRUE); 3652 if (wp != NULL) 3653 { 3654 // We need to initialize options with something, using the current 3655 // window makes most sense. 3656 win_init_some(wp, curwin); 3657 3658 RESET_BINDING(wp); 3659 new_frame(wp); 3660 } 3661 return wp; 3662 } 3663 3664 /* 3665 * Initialize window "wp" to display buffer "buf". 3666 */ 3667 void 3668 win_init_popup_win(win_T *wp, buf_T *buf) 3669 { 3670 wp->w_buffer = buf; 3671 ++buf->b_nwindows; 3672 win_init_empty(wp); // set cursor and topline to safe values 3673 3674 // Make sure w_localdir and globaldir are NULL to avoid a chdir() in 3675 // win_enter_ext(). 3676 VIM_CLEAR(wp->w_localdir); 3677 } 3678 3679 /* 3680 * Allocate the first window or the first window in a new tab page. 3681 * When "oldwin" is NULL create an empty buffer for it. 3682 * When "oldwin" is not NULL copy info from it to the new window. 3683 * Return FAIL when something goes wrong (out of memory). 3684 */ 3685 static int 3686 win_alloc_firstwin(win_T *oldwin) 3687 { 3688 curwin = win_alloc(NULL, FALSE); 3689 if (oldwin == NULL) 3690 { 3691 // Very first window, need to create an empty buffer for it and 3692 // initialize from scratch. 3693 curbuf = buflist_new(NULL, NULL, 1L, BLN_LISTED); 3694 if (curwin == NULL || curbuf == NULL) 3695 return FAIL; 3696 curwin->w_buffer = curbuf; 3697 #ifdef FEAT_SYN_HL 3698 curwin->w_s = &(curbuf->b_s); 3699 #endif 3700 curbuf->b_nwindows = 1; // there is one window 3701 curwin->w_alist = &global_alist; 3702 curwin_init(); // init current window 3703 } 3704 else 3705 { 3706 // First window in new tab page, initialize it from "oldwin". 3707 win_init(curwin, oldwin, 0); 3708 3709 // We don't want cursor- and scroll-binding in the first window. 3710 RESET_BINDING(curwin); 3711 } 3712 3713 new_frame(curwin); 3714 if (curwin->w_frame == NULL) 3715 return FAIL; 3716 topframe = curwin->w_frame; 3717 topframe->fr_width = Columns; 3718 topframe->fr_height = Rows - p_ch; 3719 3720 return OK; 3721 } 3722 3723 /* 3724 * Create a frame for window "wp". 3725 */ 3726 static void 3727 new_frame(win_T *wp) 3728 { 3729 frame_T *frp = ALLOC_CLEAR_ONE(frame_T); 3730 3731 wp->w_frame = frp; 3732 if (frp != NULL) 3733 { 3734 frp->fr_layout = FR_LEAF; 3735 frp->fr_win = wp; 3736 } 3737 } 3738 3739 /* 3740 * Initialize the window and frame size to the maximum. 3741 */ 3742 void 3743 win_init_size(void) 3744 { 3745 firstwin->w_height = ROWS_AVAIL; 3746 topframe->fr_height = ROWS_AVAIL; 3747 firstwin->w_width = Columns; 3748 topframe->fr_width = Columns; 3749 } 3750 3751 /* 3752 * Allocate a new tabpage_T and init the values. 3753 * Returns NULL when out of memory. 3754 */ 3755 static tabpage_T * 3756 alloc_tabpage(void) 3757 { 3758 tabpage_T *tp; 3759 # ifdef FEAT_GUI 3760 int i; 3761 # endif 3762 3763 3764 tp = ALLOC_CLEAR_ONE(tabpage_T); 3765 if (tp == NULL) 3766 return NULL; 3767 3768 # ifdef FEAT_EVAL 3769 // init t: variables 3770 tp->tp_vars = dict_alloc(); 3771 if (tp->tp_vars == NULL) 3772 { 3773 vim_free(tp); 3774 return NULL; 3775 } 3776 init_var_dict(tp->tp_vars, &tp->tp_winvar, VAR_SCOPE); 3777 # endif 3778 3779 # ifdef FEAT_GUI 3780 for (i = 0; i < 3; i++) 3781 tp->tp_prev_which_scrollbars[i] = -1; 3782 # endif 3783 # ifdef FEAT_DIFF 3784 tp->tp_diff_invalid = TRUE; 3785 # endif 3786 tp->tp_ch_used = p_ch; 3787 3788 return tp; 3789 } 3790 3791 void 3792 free_tabpage(tabpage_T *tp) 3793 { 3794 int idx; 3795 3796 # ifdef FEAT_DIFF 3797 diff_clear(tp); 3798 # endif 3799 # ifdef FEAT_PROP_POPUP 3800 while (tp->tp_first_popupwin != NULL) 3801 popup_close_tabpage(tp, tp->tp_first_popupwin->w_id, TRUE); 3802 #endif 3803 for (idx = 0; idx < SNAP_COUNT; ++idx) 3804 clear_snapshot(tp, idx); 3805 #ifdef FEAT_EVAL 3806 vars_clear(&tp->tp_vars->dv_hashtab); // free all t: variables 3807 hash_init(&tp->tp_vars->dv_hashtab); 3808 unref_var_dict(tp->tp_vars); 3809 #endif 3810 3811 vim_free(tp->tp_localdir); 3812 3813 #ifdef FEAT_PYTHON 3814 python_tabpage_free(tp); 3815 #endif 3816 3817 #ifdef FEAT_PYTHON3 3818 python3_tabpage_free(tp); 3819 #endif 3820 3821 vim_free(tp); 3822 } 3823 3824 /* 3825 * Create a new Tab page with one window. 3826 * It will edit the current buffer, like after ":split". 3827 * When "after" is 0 put it just after the current Tab page. 3828 * Otherwise put it just before tab page "after". 3829 * Return FAIL or OK. 3830 */ 3831 int 3832 win_new_tabpage(int after) 3833 { 3834 tabpage_T *tp = curtab; 3835 tabpage_T *newtp; 3836 int n; 3837 3838 newtp = alloc_tabpage(); 3839 if (newtp == NULL) 3840 return FAIL; 3841 3842 // Remember the current windows in this Tab page. 3843 if (leave_tabpage(curbuf, TRUE) == FAIL) 3844 { 3845 vim_free(newtp); 3846 return FAIL; 3847 } 3848 curtab = newtp; 3849 3850 newtp->tp_localdir = (tp->tp_localdir == NULL) 3851 ? NULL : vim_strsave(tp->tp_localdir); 3852 // Create a new empty window. 3853 if (win_alloc_firstwin(tp->tp_curwin) == OK) 3854 { 3855 // Make the new Tab page the new topframe. 3856 if (after == 1) 3857 { 3858 // New tab page becomes the first one. 3859 newtp->tp_next = first_tabpage; 3860 first_tabpage = newtp; 3861 } 3862 else 3863 { 3864 if (after > 0) 3865 { 3866 // Put new tab page before tab page "after". 3867 n = 2; 3868 for (tp = first_tabpage; tp->tp_next != NULL 3869 && n < after; tp = tp->tp_next) 3870 ++n; 3871 } 3872 newtp->tp_next = tp->tp_next; 3873 tp->tp_next = newtp; 3874 } 3875 newtp->tp_firstwin = newtp->tp_lastwin = newtp->tp_curwin = curwin; 3876 3877 win_init_size(); 3878 firstwin->w_winrow = tabline_height(); 3879 win_comp_scroll(curwin); 3880 3881 newtp->tp_topframe = topframe; 3882 last_status(FALSE); 3883 3884 #if defined(FEAT_GUI) 3885 // When 'guioptions' includes 'L' or 'R' may have to remove or add 3886 // scrollbars. Have to update them anyway. 3887 gui_may_update_scrollbars(); 3888 #endif 3889 #ifdef FEAT_JOB_CHANNEL 3890 entering_window(curwin); 3891 #endif 3892 3893 redraw_all_later(NOT_VALID); 3894 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 3895 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 3896 apply_autocmds(EVENT_TABNEW, NULL, NULL, FALSE, curbuf); 3897 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3898 return OK; 3899 } 3900 3901 // Failed, get back the previous Tab page 3902 enter_tabpage(curtab, curbuf, TRUE, TRUE); 3903 return FAIL; 3904 } 3905 3906 /* 3907 * Open a new tab page if ":tab cmd" was used. It will edit the same buffer, 3908 * like with ":split". 3909 * Returns OK if a new tab page was created, FAIL otherwise. 3910 */ 3911 static int 3912 may_open_tabpage(void) 3913 { 3914 int n = (cmdmod.tab == 0) ? postponed_split_tab : cmdmod.tab; 3915 3916 if (n != 0) 3917 { 3918 cmdmod.tab = 0; // reset it to avoid doing it twice 3919 postponed_split_tab = 0; 3920 return win_new_tabpage(n); 3921 } 3922 return FAIL; 3923 } 3924 3925 /* 3926 * Create up to "maxcount" tabpages with empty windows. 3927 * Returns the number of resulting tab pages. 3928 */ 3929 int 3930 make_tabpages(int maxcount) 3931 { 3932 int count = maxcount; 3933 int todo; 3934 3935 // Limit to 'tabpagemax' tabs. 3936 if (count > p_tpm) 3937 count = p_tpm; 3938 3939 /* 3940 * Don't execute autocommands while creating the tab pages. Must do that 3941 * when putting the buffers in the windows. 3942 */ 3943 block_autocmds(); 3944 3945 for (todo = count - 1; todo > 0; --todo) 3946 if (win_new_tabpage(0) == FAIL) 3947 break; 3948 3949 unblock_autocmds(); 3950 3951 // return actual number of tab pages 3952 return (count - todo); 3953 } 3954 3955 /* 3956 * Return TRUE when "tpc" points to a valid tab page. 3957 */ 3958 int 3959 valid_tabpage(tabpage_T *tpc) 3960 { 3961 tabpage_T *tp; 3962 3963 FOR_ALL_TABPAGES(tp) 3964 if (tp == tpc) 3965 return TRUE; 3966 return FALSE; 3967 } 3968 3969 /* 3970 * Return TRUE when "tpc" points to a valid tab page and at least one window is 3971 * valid. 3972 */ 3973 int 3974 valid_tabpage_win(tabpage_T *tpc) 3975 { 3976 tabpage_T *tp; 3977 win_T *wp; 3978 3979 FOR_ALL_TABPAGES(tp) 3980 { 3981 if (tp == tpc) 3982 { 3983 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 3984 { 3985 if (win_valid_any_tab(wp)) 3986 return TRUE; 3987 } 3988 return FALSE; 3989 } 3990 } 3991 // shouldn't happen 3992 return FALSE; 3993 } 3994 3995 /* 3996 * Close tabpage "tab", assuming it has no windows in it. 3997 * There must be another tabpage or this will crash. 3998 */ 3999 void 4000 close_tabpage(tabpage_T *tab) 4001 { 4002 tabpage_T *ptp; 4003 4004 if (tab == first_tabpage) 4005 { 4006 first_tabpage = tab->tp_next; 4007 ptp = first_tabpage; 4008 } 4009 else 4010 { 4011 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tab; 4012 ptp = ptp->tp_next) 4013 ; 4014 assert(ptp != NULL); 4015 ptp->tp_next = tab->tp_next; 4016 } 4017 4018 goto_tabpage_tp(ptp, FALSE, FALSE); 4019 free_tabpage(tab); 4020 } 4021 4022 /* 4023 * Find tab page "n" (first one is 1). Returns NULL when not found. 4024 */ 4025 tabpage_T * 4026 find_tabpage(int n) 4027 { 4028 tabpage_T *tp; 4029 int i = 1; 4030 4031 if (n == 0) 4032 return curtab; 4033 4034 for (tp = first_tabpage; tp != NULL && i != n; tp = tp->tp_next) 4035 ++i; 4036 return tp; 4037 } 4038 4039 /* 4040 * Get index of tab page "tp". First one has index 1. 4041 * When not found returns number of tab pages plus one. 4042 */ 4043 int 4044 tabpage_index(tabpage_T *ftp) 4045 { 4046 int i = 1; 4047 tabpage_T *tp; 4048 4049 for (tp = first_tabpage; tp != NULL && tp != ftp; tp = tp->tp_next) 4050 ++i; 4051 return i; 4052 } 4053 4054 /* 4055 * Prepare for leaving the current tab page. 4056 * When autocommands change "curtab" we don't leave the tab page and return 4057 * FAIL. 4058 * Careful: When OK is returned need to get a new tab page very very soon! 4059 */ 4060 static int 4061 leave_tabpage( 4062 buf_T *new_curbuf UNUSED, // what is going to be the new curbuf, 4063 // NULL if unknown 4064 int trigger_leave_autocmds UNUSED) 4065 { 4066 tabpage_T *tp = curtab; 4067 4068 #ifdef FEAT_JOB_CHANNEL 4069 leaving_window(curwin); 4070 #endif 4071 reset_VIsual_and_resel(); // stop Visual mode 4072 if (trigger_leave_autocmds) 4073 { 4074 if (new_curbuf != curbuf) 4075 { 4076 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4077 if (curtab != tp) 4078 return FAIL; 4079 } 4080 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4081 if (curtab != tp) 4082 return FAIL; 4083 apply_autocmds(EVENT_TABLEAVE, NULL, NULL, FALSE, curbuf); 4084 if (curtab != tp) 4085 return FAIL; 4086 } 4087 #if defined(FEAT_GUI) 4088 // Remove the scrollbars. They may be added back later. 4089 if (gui.in_use) 4090 gui_remove_scrollbars(); 4091 #endif 4092 tp->tp_curwin = curwin; 4093 tp->tp_prevwin = prevwin; 4094 tp->tp_firstwin = firstwin; 4095 tp->tp_lastwin = lastwin; 4096 tp->tp_old_Rows = Rows; 4097 tp->tp_old_Columns = Columns; 4098 firstwin = NULL; 4099 lastwin = NULL; 4100 return OK; 4101 } 4102 4103 /* 4104 * Start using tab page "tp". 4105 * Only to be used after leave_tabpage() or freeing the current tab page. 4106 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4107 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4108 */ 4109 static void 4110 enter_tabpage( 4111 tabpage_T *tp, 4112 buf_T *old_curbuf UNUSED, 4113 int trigger_enter_autocmds, 4114 int trigger_leave_autocmds) 4115 { 4116 int row; 4117 int old_off = tp->tp_firstwin->w_winrow; 4118 win_T *next_prevwin = tp->tp_prevwin; 4119 4120 curtab = tp; 4121 firstwin = tp->tp_firstwin; 4122 lastwin = tp->tp_lastwin; 4123 topframe = tp->tp_topframe; 4124 4125 // We would like doing the TabEnter event first, but we don't have a 4126 // valid current window yet, which may break some commands. 4127 // This triggers autocommands, thus may make "tp" invalid. 4128 win_enter_ext(tp->tp_curwin, FALSE, TRUE, FALSE, 4129 trigger_enter_autocmds, trigger_leave_autocmds); 4130 prevwin = next_prevwin; 4131 4132 last_status(FALSE); // status line may appear or disappear 4133 row = win_comp_pos(); // recompute w_winrow for all windows 4134 #ifdef FEAT_DIFF 4135 diff_need_scrollbind = TRUE; 4136 #endif 4137 4138 // The tabpage line may have appeared or disappeared, may need to resize 4139 // the frames for that. When the Vim window was resized need to update 4140 // frame sizes too. Use the stored value of p_ch, so that it can be 4141 // different for each tab page. 4142 if (p_ch != curtab->tp_ch_used) 4143 clear_cmdline = TRUE; 4144 p_ch = curtab->tp_ch_used; 4145 4146 // When cmdheight is changed in a tab page with '<C-w>-', cmdline_row is 4147 // changed but p_ch and tp_ch_used are not changed. Thus we also need to 4148 // check cmdline_row. 4149 if ((row < cmdline_row) && (cmdline_row <= Rows - p_ch)) 4150 clear_cmdline = TRUE; 4151 4152 if (curtab->tp_old_Rows != Rows || (old_off != firstwin->w_winrow 4153 #ifdef FEAT_GUI_TABLINE 4154 && !gui_use_tabline() 4155 #endif 4156 )) 4157 shell_new_rows(); 4158 if (curtab->tp_old_Columns != Columns && starting == 0) 4159 shell_new_columns(); // update window widths 4160 4161 #if defined(FEAT_GUI) 4162 // When 'guioptions' includes 'L' or 'R' may have to remove or add 4163 // scrollbars. Have to update them anyway. 4164 gui_may_update_scrollbars(); 4165 #endif 4166 4167 // Apply autocommands after updating the display, when 'rows' and 4168 // 'columns' have been set correctly. 4169 if (trigger_enter_autocmds) 4170 { 4171 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 4172 if (old_curbuf != curbuf) 4173 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4174 } 4175 4176 redraw_all_later(NOT_VALID); 4177 } 4178 4179 /* 4180 * Go to tab page "n". For ":tab N" and "Ngt". 4181 * When "n" is 9999 go to the last tab page. 4182 */ 4183 void 4184 goto_tabpage(int n) 4185 { 4186 tabpage_T *tp = NULL; // shut up compiler 4187 tabpage_T *ttp; 4188 int i; 4189 4190 if (text_locked()) 4191 { 4192 // Not allowed when editing the command line. 4193 text_locked_msg(); 4194 return; 4195 } 4196 4197 // If there is only one it can't work. 4198 if (first_tabpage->tp_next == NULL) 4199 { 4200 if (n > 1) 4201 beep_flush(); 4202 return; 4203 } 4204 4205 if (n == 0) 4206 { 4207 // No count, go to next tab page, wrap around end. 4208 if (curtab->tp_next == NULL) 4209 tp = first_tabpage; 4210 else 4211 tp = curtab->tp_next; 4212 } 4213 else if (n < 0) 4214 { 4215 // "gT": go to previous tab page, wrap around end. "N gT" repeats 4216 // this N times. 4217 ttp = curtab; 4218 for (i = n; i < 0; ++i) 4219 { 4220 for (tp = first_tabpage; tp->tp_next != ttp && tp->tp_next != NULL; 4221 tp = tp->tp_next) 4222 ; 4223 ttp = tp; 4224 } 4225 } 4226 else if (n == 9999) 4227 { 4228 // Go to last tab page. 4229 for (tp = first_tabpage; tp->tp_next != NULL; tp = tp->tp_next) 4230 ; 4231 } 4232 else 4233 { 4234 // Go to tab page "n". 4235 tp = find_tabpage(n); 4236 if (tp == NULL) 4237 { 4238 beep_flush(); 4239 return; 4240 } 4241 } 4242 4243 goto_tabpage_tp(tp, TRUE, TRUE); 4244 4245 #ifdef FEAT_GUI_TABLINE 4246 if (gui_use_tabline()) 4247 gui_mch_set_curtab(tabpage_index(curtab)); 4248 #endif 4249 } 4250 4251 /* 4252 * Go to tabpage "tp". 4253 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4254 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4255 * Note: doesn't update the GUI tab. 4256 */ 4257 void 4258 goto_tabpage_tp( 4259 tabpage_T *tp, 4260 int trigger_enter_autocmds, 4261 int trigger_leave_autocmds) 4262 { 4263 // Don't repeat a message in another tab page. 4264 set_keep_msg(NULL, 0); 4265 4266 if (tp != curtab && leave_tabpage(tp->tp_curwin->w_buffer, 4267 trigger_leave_autocmds) == OK) 4268 { 4269 if (valid_tabpage(tp)) 4270 enter_tabpage(tp, curbuf, trigger_enter_autocmds, 4271 trigger_leave_autocmds); 4272 else 4273 enter_tabpage(curtab, curbuf, trigger_enter_autocmds, 4274 trigger_leave_autocmds); 4275 } 4276 } 4277 4278 /* 4279 * Enter window "wp" in tab page "tp". 4280 * Also updates the GUI tab. 4281 */ 4282 void 4283 goto_tabpage_win(tabpage_T *tp, win_T *wp) 4284 { 4285 goto_tabpage_tp(tp, TRUE, TRUE); 4286 if (curtab == tp && win_valid(wp)) 4287 { 4288 win_enter(wp, TRUE); 4289 # ifdef FEAT_GUI_TABLINE 4290 if (gui_use_tabline()) 4291 gui_mch_set_curtab(tabpage_index(curtab)); 4292 # endif 4293 } 4294 } 4295 4296 /* 4297 * Move the current tab page to after tab page "nr". 4298 */ 4299 void 4300 tabpage_move(int nr) 4301 { 4302 int n = 1; 4303 tabpage_T *tp, *tp_dst; 4304 4305 if (first_tabpage->tp_next == NULL) 4306 return; 4307 4308 for (tp = first_tabpage; tp->tp_next != NULL && n < nr; tp = tp->tp_next) 4309 ++n; 4310 4311 if (tp == curtab || (nr > 0 && tp->tp_next != NULL 4312 && tp->tp_next == curtab)) 4313 return; 4314 4315 tp_dst = tp; 4316 4317 // Remove the current tab page from the list of tab pages. 4318 if (curtab == first_tabpage) 4319 first_tabpage = curtab->tp_next; 4320 else 4321 { 4322 FOR_ALL_TABPAGES(tp) 4323 if (tp->tp_next == curtab) 4324 break; 4325 if (tp == NULL) // "cannot happen" 4326 return; 4327 tp->tp_next = curtab->tp_next; 4328 } 4329 4330 // Re-insert it at the specified position. 4331 if (nr <= 0) 4332 { 4333 curtab->tp_next = first_tabpage; 4334 first_tabpage = curtab; 4335 } 4336 else 4337 { 4338 curtab->tp_next = tp_dst->tp_next; 4339 tp_dst->tp_next = curtab; 4340 } 4341 4342 // Need to redraw the tabline. Tab page contents doesn't change. 4343 redraw_tabline = TRUE; 4344 } 4345 4346 4347 /* 4348 * Go to another window. 4349 * When jumping to another buffer, stop Visual mode. Do this before 4350 * changing windows so we can yank the selection into the '*' register. 4351 * When jumping to another window on the same buffer, adjust its cursor 4352 * position to keep the same Visual area. 4353 */ 4354 void 4355 win_goto(win_T *wp) 4356 { 4357 #ifdef FEAT_CONCEAL 4358 win_T *owp = curwin; 4359 #endif 4360 4361 #ifdef FEAT_PROP_POPUP 4362 if (ERROR_IF_ANY_POPUP_WINDOW) 4363 return; 4364 if (popup_is_popup(wp)) 4365 { 4366 emsg(_("E366: Not allowed to enter a popup window")); 4367 return; 4368 } 4369 #endif 4370 if (text_and_win_locked()) 4371 { 4372 beep_flush(); 4373 text_locked_msg(); 4374 return; 4375 } 4376 if (curbuf_locked()) 4377 return; 4378 4379 if (wp->w_buffer != curbuf) 4380 reset_VIsual_and_resel(); 4381 else if (VIsual_active) 4382 wp->w_cursor = curwin->w_cursor; 4383 4384 #ifdef FEAT_GUI 4385 need_mouse_correct = TRUE; 4386 #endif 4387 win_enter(wp, TRUE); 4388 4389 #ifdef FEAT_CONCEAL 4390 // Conceal cursor line in previous window, unconceal in current window. 4391 if (win_valid(owp) && owp->w_p_cole > 0 && !msg_scrolled) 4392 redrawWinline(owp, owp->w_cursor.lnum); 4393 if (curwin->w_p_cole > 0 && !msg_scrolled) 4394 need_cursor_line_redraw = TRUE; 4395 #endif 4396 } 4397 4398 #if defined(FEAT_PERL) || defined(PROTO) 4399 /* 4400 * Find window number "winnr" (counting top to bottom). 4401 */ 4402 win_T * 4403 win_find_nr(int winnr) 4404 { 4405 win_T *wp; 4406 4407 FOR_ALL_WINDOWS(wp) 4408 if (--winnr == 0) 4409 break; 4410 return wp; 4411 } 4412 #endif 4413 4414 #if ((defined(FEAT_PYTHON) || defined(FEAT_PYTHON3))) || defined(PROTO) 4415 /* 4416 * Find the tabpage for window "win". 4417 */ 4418 tabpage_T * 4419 win_find_tabpage(win_T *win) 4420 { 4421 win_T *wp; 4422 tabpage_T *tp; 4423 4424 FOR_ALL_TAB_WINDOWS(tp, wp) 4425 if (wp == win) 4426 return tp; 4427 return NULL; 4428 } 4429 #endif 4430 4431 /* 4432 * Get the above or below neighbor window of the specified window. 4433 * up - TRUE for the above neighbor 4434 * count - nth neighbor window 4435 * Returns the specified window if the neighbor is not found. 4436 */ 4437 win_T * 4438 win_vert_neighbor(tabpage_T *tp, win_T *wp, int up, long count) 4439 { 4440 frame_T *fr; 4441 frame_T *nfr; 4442 frame_T *foundfr; 4443 4444 #ifdef FEAT_PROP_POPUP 4445 if (popup_is_popup(wp)) 4446 // popups don't have neighbors. 4447 return NULL; 4448 #endif 4449 foundfr = wp->w_frame; 4450 while (count--) 4451 { 4452 /* 4453 * First go upwards in the tree of frames until we find a upwards or 4454 * downwards neighbor. 4455 */ 4456 fr = foundfr; 4457 for (;;) 4458 { 4459 if (fr == tp->tp_topframe) 4460 goto end; 4461 if (up) 4462 nfr = fr->fr_prev; 4463 else 4464 nfr = fr->fr_next; 4465 if (fr->fr_parent->fr_layout == FR_COL && nfr != NULL) 4466 break; 4467 fr = fr->fr_parent; 4468 } 4469 4470 /* 4471 * Now go downwards to find the bottom or top frame in it. 4472 */ 4473 for (;;) 4474 { 4475 if (nfr->fr_layout == FR_LEAF) 4476 { 4477 foundfr = nfr; 4478 break; 4479 } 4480 fr = nfr->fr_child; 4481 if (nfr->fr_layout == FR_ROW) 4482 { 4483 // Find the frame at the cursor row. 4484 while (fr->fr_next != NULL 4485 && frame2win(fr)->w_wincol + fr->fr_width 4486 <= wp->w_wincol + wp->w_wcol) 4487 fr = fr->fr_next; 4488 } 4489 if (nfr->fr_layout == FR_COL && up) 4490 while (fr->fr_next != NULL) 4491 fr = fr->fr_next; 4492 nfr = fr; 4493 } 4494 } 4495 end: 4496 return foundfr != NULL ? foundfr->fr_win : NULL; 4497 } 4498 4499 /* 4500 * Move to window above or below "count" times. 4501 */ 4502 static void 4503 win_goto_ver( 4504 int up, // TRUE to go to win above 4505 long count) 4506 { 4507 win_T *win; 4508 4509 #ifdef FEAT_PROP_POPUP 4510 if (ERROR_IF_TERM_POPUP_WINDOW) 4511 return; 4512 #endif 4513 win = win_vert_neighbor(curtab, curwin, up, count); 4514 if (win != NULL) 4515 win_goto(win); 4516 } 4517 4518 /* 4519 * Get the left or right neighbor window of the specified window. 4520 * left - TRUE for the left neighbor 4521 * count - nth neighbor window 4522 * Returns the specified window if the neighbor is not found. 4523 */ 4524 win_T * 4525 win_horz_neighbor(tabpage_T *tp, win_T *wp, int left, long count) 4526 { 4527 frame_T *fr; 4528 frame_T *nfr; 4529 frame_T *foundfr; 4530 4531 #ifdef FEAT_PROP_POPUP 4532 if (popup_is_popup(wp)) 4533 // popups don't have neighbors. 4534 return NULL; 4535 #endif 4536 foundfr = wp->w_frame; 4537 while (count--) 4538 { 4539 /* 4540 * First go upwards in the tree of frames until we find a left or 4541 * right neighbor. 4542 */ 4543 fr = foundfr; 4544 for (;;) 4545 { 4546 if (fr == tp->tp_topframe) 4547 goto end; 4548 if (left) 4549 nfr = fr->fr_prev; 4550 else 4551 nfr = fr->fr_next; 4552 if (fr->fr_parent->fr_layout == FR_ROW && nfr != NULL) 4553 break; 4554 fr = fr->fr_parent; 4555 } 4556 4557 /* 4558 * Now go downwards to find the leftmost or rightmost frame in it. 4559 */ 4560 for (;;) 4561 { 4562 if (nfr->fr_layout == FR_LEAF) 4563 { 4564 foundfr = nfr; 4565 break; 4566 } 4567 fr = nfr->fr_child; 4568 if (nfr->fr_layout == FR_COL) 4569 { 4570 // Find the frame at the cursor row. 4571 while (fr->fr_next != NULL 4572 && frame2win(fr)->w_winrow + fr->fr_height 4573 <= wp->w_winrow + wp->w_wrow) 4574 fr = fr->fr_next; 4575 } 4576 if (nfr->fr_layout == FR_ROW && left) 4577 while (fr->fr_next != NULL) 4578 fr = fr->fr_next; 4579 nfr = fr; 4580 } 4581 } 4582 end: 4583 return foundfr != NULL ? foundfr->fr_win : NULL; 4584 } 4585 4586 /* 4587 * Move to left or right window. 4588 */ 4589 static void 4590 win_goto_hor( 4591 int left, // TRUE to go to left win 4592 long count) 4593 { 4594 win_T *win; 4595 4596 #ifdef FEAT_PROP_POPUP 4597 if (ERROR_IF_TERM_POPUP_WINDOW) 4598 return; 4599 #endif 4600 win = win_horz_neighbor(curtab, curwin, left, count); 4601 if (win != NULL) 4602 win_goto(win); 4603 } 4604 4605 /* 4606 * Make window "wp" the current window. 4607 */ 4608 void 4609 win_enter(win_T *wp, int undo_sync) 4610 { 4611 win_enter_ext(wp, undo_sync, FALSE, FALSE, TRUE, TRUE); 4612 } 4613 4614 /* 4615 * Make window wp the current window. 4616 * Can be called with "curwin_invalid" TRUE, which means that curwin has just 4617 * been closed and isn't valid. 4618 */ 4619 static void 4620 win_enter_ext( 4621 win_T *wp, 4622 int undo_sync, 4623 int curwin_invalid, 4624 int trigger_new_autocmds, 4625 int trigger_enter_autocmds, 4626 int trigger_leave_autocmds) 4627 { 4628 int other_buffer = FALSE; 4629 4630 if (wp == curwin && !curwin_invalid) // nothing to do 4631 return; 4632 4633 #ifdef FEAT_JOB_CHANNEL 4634 if (!curwin_invalid) 4635 leaving_window(curwin); 4636 #endif 4637 4638 if (!curwin_invalid && trigger_leave_autocmds) 4639 { 4640 /* 4641 * Be careful: If autocommands delete the window, return now. 4642 */ 4643 if (wp->w_buffer != curbuf) 4644 { 4645 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4646 other_buffer = TRUE; 4647 if (!win_valid(wp)) 4648 return; 4649 } 4650 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4651 if (!win_valid(wp)) 4652 return; 4653 #ifdef FEAT_EVAL 4654 // autocmds may abort script processing 4655 if (aborting()) 4656 return; 4657 #endif 4658 } 4659 4660 // sync undo before leaving the current buffer 4661 if (undo_sync && curbuf != wp->w_buffer) 4662 u_sync(FALSE); 4663 4664 // Might need to scroll the old window before switching, e.g., when the 4665 // cursor was moved. 4666 update_topline(); 4667 4668 // may have to copy the buffer options when 'cpo' contains 'S' 4669 if (wp->w_buffer != curbuf) 4670 buf_copy_options(wp->w_buffer, BCO_ENTER | BCO_NOHELP); 4671 if (!curwin_invalid) 4672 { 4673 prevwin = curwin; // remember for CTRL-W p 4674 curwin->w_redr_status = TRUE; 4675 } 4676 curwin = wp; 4677 curbuf = wp->w_buffer; 4678 check_cursor(); 4679 if (!virtual_active()) 4680 curwin->w_cursor.coladd = 0; 4681 changed_line_abv_curs(); // assume cursor position needs updating 4682 4683 if (curwin->w_localdir != NULL || curtab->tp_localdir != NULL) 4684 { 4685 char_u *dirname; 4686 4687 // Window or tab has a local directory: Save current directory as 4688 // global directory (unless that was done already) and change to the 4689 // local directory. 4690 if (globaldir == NULL) 4691 { 4692 char_u cwd[MAXPATHL]; 4693 4694 if (mch_dirname(cwd, MAXPATHL) == OK) 4695 globaldir = vim_strsave(cwd); 4696 } 4697 if (curwin->w_localdir != NULL) 4698 dirname = curwin->w_localdir; 4699 else 4700 dirname = curtab->tp_localdir; 4701 4702 if (mch_chdir((char *)dirname) == 0) 4703 shorten_fnames(TRUE); 4704 } 4705 else if (globaldir != NULL) 4706 { 4707 // Window doesn't have a local directory and we are not in the global 4708 // directory: Change to the global directory. 4709 vim_ignored = mch_chdir((char *)globaldir); 4710 VIM_CLEAR(globaldir); 4711 shorten_fnames(TRUE); 4712 } 4713 4714 #ifdef FEAT_JOB_CHANNEL 4715 entering_window(curwin); 4716 #endif 4717 // Careful: autocommands may close the window and make "wp" invalid 4718 if (trigger_new_autocmds) 4719 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 4720 if (trigger_enter_autocmds) 4721 { 4722 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 4723 if (other_buffer) 4724 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4725 } 4726 4727 #ifdef FEAT_TITLE 4728 maketitle(); 4729 #endif 4730 curwin->w_redr_status = TRUE; 4731 #ifdef FEAT_TERMINAL 4732 if (bt_terminal(curwin->w_buffer)) 4733 // terminal is likely in another mode 4734 redraw_mode = TRUE; 4735 #endif 4736 redraw_tabline = TRUE; 4737 if (restart_edit) 4738 redraw_later(VALID); // causes status line redraw 4739 4740 // set window height to desired minimal value 4741 if (curwin->w_height < p_wh && !curwin->w_p_wfh 4742 #ifdef FEAT_PROP_POPUP 4743 && !popup_is_popup(curwin) 4744 #endif 4745 ) 4746 win_setheight((int)p_wh); 4747 else if (curwin->w_height == 0) 4748 win_setheight(1); 4749 4750 // set window width to desired minimal value 4751 if (curwin->w_width < p_wiw && !curwin->w_p_wfw) 4752 win_setwidth((int)p_wiw); 4753 4754 setmouse(); // in case jumped to/from help buffer 4755 4756 // Change directories when the 'acd' option is set. 4757 DO_AUTOCHDIR; 4758 } 4759 4760 4761 /* 4762 * Jump to the first open window that contains buffer "buf", if one exists. 4763 * Returns a pointer to the window found, otherwise NULL. 4764 */ 4765 win_T * 4766 buf_jump_open_win(buf_T *buf) 4767 { 4768 win_T *wp = NULL; 4769 4770 if (curwin->w_buffer == buf) 4771 wp = curwin; 4772 else 4773 FOR_ALL_WINDOWS(wp) 4774 if (wp->w_buffer == buf) 4775 break; 4776 if (wp != NULL) 4777 win_enter(wp, FALSE); 4778 return wp; 4779 } 4780 4781 /* 4782 * Jump to the first open window in any tab page that contains buffer "buf", 4783 * if one exists. 4784 * Returns a pointer to the window found, otherwise NULL. 4785 */ 4786 win_T * 4787 buf_jump_open_tab(buf_T *buf) 4788 { 4789 win_T *wp = buf_jump_open_win(buf); 4790 tabpage_T *tp; 4791 4792 if (wp != NULL) 4793 return wp; 4794 4795 FOR_ALL_TABPAGES(tp) 4796 if (tp != curtab) 4797 { 4798 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 4799 if (wp->w_buffer == buf) 4800 break; 4801 if (wp != NULL) 4802 { 4803 goto_tabpage_win(tp, wp); 4804 if (curwin != wp) 4805 wp = NULL; // something went wrong 4806 break; 4807 } 4808 } 4809 return wp; 4810 } 4811 4812 static int last_win_id = LOWEST_WIN_ID - 1; 4813 4814 /* 4815 * Allocate a window structure and link it in the window list when "hidden" is 4816 * FALSE. 4817 */ 4818 static win_T * 4819 win_alloc(win_T *after UNUSED, int hidden UNUSED) 4820 { 4821 win_T *new_wp; 4822 4823 /* 4824 * allocate window structure and linesizes arrays 4825 */ 4826 new_wp = ALLOC_CLEAR_ONE(win_T); 4827 if (new_wp == NULL) 4828 return NULL; 4829 4830 if (win_alloc_lines(new_wp) == FAIL) 4831 { 4832 vim_free(new_wp); 4833 return NULL; 4834 } 4835 4836 new_wp->w_id = ++last_win_id; 4837 4838 #ifdef FEAT_EVAL 4839 // init w: variables 4840 new_wp->w_vars = dict_alloc(); 4841 if (new_wp->w_vars == NULL) 4842 { 4843 win_free_lsize(new_wp); 4844 vim_free(new_wp); 4845 return NULL; 4846 } 4847 init_var_dict(new_wp->w_vars, &new_wp->w_winvar, VAR_SCOPE); 4848 #endif 4849 4850 // Don't execute autocommands while the window is not properly 4851 // initialized yet. gui_create_scrollbar() may trigger a FocusGained 4852 // event. 4853 block_autocmds(); 4854 4855 /* 4856 * link the window in the window list 4857 */ 4858 if (!hidden) 4859 win_append(after, new_wp); 4860 new_wp->w_wincol = 0; 4861 new_wp->w_width = Columns; 4862 4863 // position the display and the cursor at the top of the file. 4864 new_wp->w_topline = 1; 4865 #ifdef FEAT_DIFF 4866 new_wp->w_topfill = 0; 4867 #endif 4868 new_wp->w_botline = 2; 4869 new_wp->w_cursor.lnum = 1; 4870 new_wp->w_scbind_pos = 1; 4871 4872 // use global option value for global-local options 4873 new_wp->w_p_so = -1; 4874 new_wp->w_p_siso = -1; 4875 4876 // We won't calculate w_fraction until resizing the window 4877 new_wp->w_fraction = 0; 4878 new_wp->w_prev_fraction_row = -1; 4879 4880 #ifdef FEAT_GUI 4881 if (gui.in_use) 4882 { 4883 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_LEFT], 4884 SBAR_LEFT, new_wp); 4885 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_RIGHT], 4886 SBAR_RIGHT, new_wp); 4887 } 4888 #endif 4889 #ifdef FEAT_FOLDING 4890 foldInitWin(new_wp); 4891 #endif 4892 unblock_autocmds(); 4893 #ifdef FEAT_SEARCH_EXTRA 4894 new_wp->w_match_head = NULL; 4895 new_wp->w_next_match_id = 4; 4896 #endif 4897 return new_wp; 4898 } 4899 4900 /* 4901 * Remove window 'wp' from the window list and free the structure. 4902 */ 4903 static void 4904 win_free( 4905 win_T *wp, 4906 tabpage_T *tp) // tab page "win" is in, NULL for current 4907 { 4908 int i; 4909 buf_T *buf; 4910 wininfo_T *wip; 4911 4912 #ifdef FEAT_FOLDING 4913 clearFolding(wp); 4914 #endif 4915 4916 // reduce the reference count to the argument list. 4917 alist_unlink(wp->w_alist); 4918 4919 // Don't execute autocommands while the window is halfway being deleted. 4920 // gui_mch_destroy_scrollbar() may trigger a FocusGained event. 4921 block_autocmds(); 4922 4923 #ifdef FEAT_LUA 4924 lua_window_free(wp); 4925 #endif 4926 4927 #ifdef FEAT_MZSCHEME 4928 mzscheme_window_free(wp); 4929 #endif 4930 4931 #ifdef FEAT_PERL 4932 perl_win_free(wp); 4933 #endif 4934 4935 #ifdef FEAT_PYTHON 4936 python_window_free(wp); 4937 #endif 4938 4939 #ifdef FEAT_PYTHON3 4940 python3_window_free(wp); 4941 #endif 4942 4943 #ifdef FEAT_TCL 4944 tcl_window_free(wp); 4945 #endif 4946 4947 #ifdef FEAT_RUBY 4948 ruby_window_free(wp); 4949 #endif 4950 4951 clear_winopt(&wp->w_onebuf_opt); 4952 clear_winopt(&wp->w_allbuf_opt); 4953 4954 #ifdef FEAT_EVAL 4955 vars_clear(&wp->w_vars->dv_hashtab); // free all w: variables 4956 hash_init(&wp->w_vars->dv_hashtab); 4957 unref_var_dict(wp->w_vars); 4958 #endif 4959 4960 { 4961 tabpage_T *ttp; 4962 4963 if (prevwin == wp) 4964 prevwin = NULL; 4965 FOR_ALL_TABPAGES(ttp) 4966 if (ttp->tp_prevwin == wp) 4967 ttp->tp_prevwin = NULL; 4968 } 4969 win_free_lsize(wp); 4970 4971 for (i = 0; i < wp->w_tagstacklen; ++i) 4972 { 4973 vim_free(wp->w_tagstack[i].tagname); 4974 vim_free(wp->w_tagstack[i].user_data); 4975 } 4976 vim_free(wp->w_localdir); 4977 4978 // Remove the window from the b_wininfo lists, it may happen that the 4979 // freed memory is re-used for another window. 4980 FOR_ALL_BUFFERS(buf) 4981 FOR_ALL_BUF_WININFO(buf, wip) 4982 if (wip->wi_win == wp) 4983 wip->wi_win = NULL; 4984 4985 #ifdef FEAT_SEARCH_EXTRA 4986 clear_matches(wp); 4987 #endif 4988 4989 #ifdef FEAT_JUMPLIST 4990 free_jumplist(wp); 4991 #endif 4992 4993 #ifdef FEAT_QUICKFIX 4994 qf_free_all(wp); 4995 #endif 4996 4997 #ifdef FEAT_GUI 4998 if (gui.in_use) 4999 { 5000 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_LEFT]); 5001 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_RIGHT]); 5002 } 5003 #endif // FEAT_GUI 5004 5005 #ifdef FEAT_MENU 5006 remove_winbar(wp); 5007 #endif 5008 #ifdef FEAT_PROP_POPUP 5009 free_callback(&wp->w_close_cb); 5010 free_callback(&wp->w_filter_cb); 5011 for (i = 0; i < 4; ++i) 5012 VIM_CLEAR(wp->w_border_highlight[i]); 5013 vim_free(wp->w_scrollbar_highlight); 5014 vim_free(wp->w_thumb_highlight); 5015 vim_free(wp->w_popup_title); 5016 list_unref(wp->w_popup_mask); 5017 vim_free(wp->w_popup_mask_cells); 5018 #endif 5019 5020 #ifdef FEAT_SYN_HL 5021 vim_free(wp->w_p_cc_cols); 5022 #endif 5023 5024 if (win_valid_any_tab(wp)) 5025 win_remove(wp, tp); 5026 if (autocmd_busy) 5027 { 5028 wp->w_next = au_pending_free_win; 5029 au_pending_free_win = wp; 5030 } 5031 else 5032 vim_free(wp); 5033 5034 unblock_autocmds(); 5035 } 5036 5037 /* 5038 * Return TRUE if "wp" is not in the list of windows: the autocmd window or a 5039 * popup window. 5040 */ 5041 static int 5042 win_unlisted(win_T *wp) 5043 { 5044 return wp == aucmd_win || WIN_IS_POPUP(wp); 5045 } 5046 5047 #if defined(FEAT_PROP_POPUP) || defined(PROTO) 5048 /* 5049 * Free a popup window. This does not take the window out of the window list 5050 * and assumes there is only one toplevel frame, no split. 5051 */ 5052 void 5053 win_free_popup(win_T *win) 5054 { 5055 if (bt_popup(win->w_buffer)) 5056 win_close_buffer(win, DOBUF_WIPE_REUSE, FALSE); 5057 else 5058 close_buffer(win, win->w_buffer, 0, FALSE, FALSE); 5059 # if defined(FEAT_TIMERS) 5060 if (win->w_popup_timer != NULL) 5061 stop_timer(win->w_popup_timer); 5062 # endif 5063 vim_free(win->w_frame); 5064 win_free(win, NULL); 5065 } 5066 #endif 5067 5068 /* 5069 * Append window "wp" in the window list after window "after". 5070 */ 5071 static void 5072 win_append(win_T *after, win_T *wp) 5073 { 5074 win_T *before; 5075 5076 if (after == NULL) // after NULL is in front of the first 5077 before = firstwin; 5078 else 5079 before = after->w_next; 5080 5081 wp->w_next = before; 5082 wp->w_prev = after; 5083 if (after == NULL) 5084 firstwin = wp; 5085 else 5086 after->w_next = wp; 5087 if (before == NULL) 5088 lastwin = wp; 5089 else 5090 before->w_prev = wp; 5091 } 5092 5093 /* 5094 * Remove a window from the window list. 5095 */ 5096 void 5097 win_remove( 5098 win_T *wp, 5099 tabpage_T *tp) // tab page "win" is in, NULL for current 5100 { 5101 if (wp->w_prev != NULL) 5102 wp->w_prev->w_next = wp->w_next; 5103 else if (tp == NULL) 5104 firstwin = curtab->tp_firstwin = wp->w_next; 5105 else 5106 tp->tp_firstwin = wp->w_next; 5107 5108 if (wp->w_next != NULL) 5109 wp->w_next->w_prev = wp->w_prev; 5110 else if (tp == NULL) 5111 lastwin = curtab->tp_lastwin = wp->w_prev; 5112 else 5113 tp->tp_lastwin = wp->w_prev; 5114 } 5115 5116 /* 5117 * Append frame "frp" in a frame list after frame "after". 5118 */ 5119 static void 5120 frame_append(frame_T *after, frame_T *frp) 5121 { 5122 frp->fr_next = after->fr_next; 5123 after->fr_next = frp; 5124 if (frp->fr_next != NULL) 5125 frp->fr_next->fr_prev = frp; 5126 frp->fr_prev = after; 5127 } 5128 5129 /* 5130 * Insert frame "frp" in a frame list before frame "before". 5131 */ 5132 static void 5133 frame_insert(frame_T *before, frame_T *frp) 5134 { 5135 frp->fr_next = before; 5136 frp->fr_prev = before->fr_prev; 5137 before->fr_prev = frp; 5138 if (frp->fr_prev != NULL) 5139 frp->fr_prev->fr_next = frp; 5140 else 5141 frp->fr_parent->fr_child = frp; 5142 } 5143 5144 /* 5145 * Remove a frame from a frame list. 5146 */ 5147 static void 5148 frame_remove(frame_T *frp) 5149 { 5150 if (frp->fr_prev != NULL) 5151 frp->fr_prev->fr_next = frp->fr_next; 5152 else 5153 { 5154 frp->fr_parent->fr_child = frp->fr_next; 5155 // special case: topframe->fr_child == frp 5156 if (topframe->fr_child == frp) 5157 topframe->fr_child = frp->fr_next; 5158 } 5159 if (frp->fr_next != NULL) 5160 frp->fr_next->fr_prev = frp->fr_prev; 5161 } 5162 5163 /* 5164 * Allocate w_lines[] for window "wp". 5165 * Return FAIL for failure, OK for success. 5166 */ 5167 int 5168 win_alloc_lines(win_T *wp) 5169 { 5170 wp->w_lines_valid = 0; 5171 wp->w_lines = ALLOC_CLEAR_MULT(wline_T, Rows ); 5172 if (wp->w_lines == NULL) 5173 return FAIL; 5174 return OK; 5175 } 5176 5177 /* 5178 * free lsize arrays for a window 5179 */ 5180 void 5181 win_free_lsize(win_T *wp) 5182 { 5183 // TODO: why would wp be NULL here? 5184 if (wp != NULL) 5185 VIM_CLEAR(wp->w_lines); 5186 } 5187 5188 /* 5189 * Called from win_new_shellsize() after Rows changed. 5190 * This only does the current tab page, others must be done when made active. 5191 */ 5192 void 5193 shell_new_rows(void) 5194 { 5195 int h = (int)ROWS_AVAIL; 5196 5197 if (firstwin == NULL) // not initialized yet 5198 return; 5199 if (h < frame_minheight(topframe, NULL)) 5200 h = frame_minheight(topframe, NULL); 5201 5202 // First try setting the heights of windows with 'winfixheight'. If 5203 // that doesn't result in the right height, forget about that option. 5204 frame_new_height(topframe, h, FALSE, TRUE); 5205 if (!frame_check_height(topframe, h)) 5206 frame_new_height(topframe, h, FALSE, FALSE); 5207 5208 (void)win_comp_pos(); // recompute w_winrow and w_wincol 5209 compute_cmdrow(); 5210 curtab->tp_ch_used = p_ch; 5211 5212 #if 0 5213 // Disabled: don't want making the screen smaller make a window larger. 5214 if (p_ea) 5215 win_equal(curwin, FALSE, 'v'); 5216 #endif 5217 } 5218 5219 /* 5220 * Called from win_new_shellsize() after Columns changed. 5221 */ 5222 void 5223 shell_new_columns(void) 5224 { 5225 if (firstwin == NULL) // not initialized yet 5226 return; 5227 5228 // First try setting the widths of windows with 'winfixwidth'. If that 5229 // doesn't result in the right width, forget about that option. 5230 frame_new_width(topframe, (int)Columns, FALSE, TRUE); 5231 if (!frame_check_width(topframe, Columns)) 5232 frame_new_width(topframe, (int)Columns, FALSE, FALSE); 5233 5234 (void)win_comp_pos(); // recompute w_winrow and w_wincol 5235 #if 0 5236 // Disabled: don't want making the screen smaller make a window larger. 5237 if (p_ea) 5238 win_equal(curwin, FALSE, 'h'); 5239 #endif 5240 } 5241 5242 #if defined(FEAT_CMDWIN) || defined(PROTO) 5243 /* 5244 * Save the size of all windows in "gap". 5245 */ 5246 void 5247 win_size_save(garray_T *gap) 5248 5249 { 5250 win_T *wp; 5251 5252 ga_init2(gap, (int)sizeof(int), 1); 5253 if (ga_grow(gap, win_count() * 2 + 1) == OK) 5254 { 5255 // first entry is value of 'lines' 5256 ((int *)gap->ga_data)[gap->ga_len++] = Rows; 5257 5258 FOR_ALL_WINDOWS(wp) 5259 { 5260 ((int *)gap->ga_data)[gap->ga_len++] = 5261 wp->w_width + wp->w_vsep_width; 5262 ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height; 5263 } 5264 } 5265 } 5266 5267 /* 5268 * Restore window sizes, but only if the number of windows is still the same 5269 * and 'lines' didn't change. 5270 * Does not free the growarray. 5271 */ 5272 void 5273 win_size_restore(garray_T *gap) 5274 { 5275 win_T *wp; 5276 int i, j; 5277 5278 if (win_count() * 2 + 1 == gap->ga_len 5279 && ((int *)gap->ga_data)[0] == Rows) 5280 { 5281 // The order matters, because frames contain other frames, but it's 5282 // difficult to get right. The easy way out is to do it twice. 5283 for (j = 0; j < 2; ++j) 5284 { 5285 i = 1; 5286 FOR_ALL_WINDOWS(wp) 5287 { 5288 frame_setwidth(wp->w_frame, ((int *)gap->ga_data)[i++]); 5289 win_setheight_win(((int *)gap->ga_data)[i++], wp); 5290 } 5291 } 5292 // recompute the window positions 5293 (void)win_comp_pos(); 5294 } 5295 } 5296 #endif // FEAT_CMDWIN 5297 5298 /* 5299 * Update the position for all windows, using the width and height of the 5300 * frames. 5301 * Returns the row just after the last window. 5302 */ 5303 int 5304 win_comp_pos(void) 5305 { 5306 int row = tabline_height(); 5307 int col = 0; 5308 5309 frame_comp_pos(topframe, &row, &col); 5310 return row; 5311 } 5312 5313 /* 5314 * Update the position of the windows in frame "topfrp", using the width and 5315 * height of the frames. 5316 * "*row" and "*col" are the top-left position of the frame. They are updated 5317 * to the bottom-right position plus one. 5318 */ 5319 static void 5320 frame_comp_pos(frame_T *topfrp, int *row, int *col) 5321 { 5322 win_T *wp; 5323 frame_T *frp; 5324 int startcol; 5325 int startrow; 5326 int h; 5327 5328 wp = topfrp->fr_win; 5329 if (wp != NULL) 5330 { 5331 if (wp->w_winrow != *row || wp->w_wincol != *col) 5332 { 5333 // position changed, redraw 5334 wp->w_winrow = *row; 5335 wp->w_wincol = *col; 5336 redraw_win_later(wp, NOT_VALID); 5337 wp->w_redr_status = TRUE; 5338 } 5339 // WinBar will not show if the window height is zero 5340 h = VISIBLE_HEIGHT(wp) + wp->w_status_height; 5341 *row += h > topfrp->fr_height ? topfrp->fr_height : h; 5342 *col += wp->w_width + wp->w_vsep_width; 5343 } 5344 else 5345 { 5346 startrow = *row; 5347 startcol = *col; 5348 FOR_ALL_FRAMES(frp, topfrp->fr_child) 5349 { 5350 if (topfrp->fr_layout == FR_ROW) 5351 *row = startrow; // all frames are at the same row 5352 else 5353 *col = startcol; // all frames are at the same col 5354 frame_comp_pos(frp, row, col); 5355 } 5356 } 5357 } 5358 5359 /* 5360 * Set current window height and take care of repositioning other windows to 5361 * fit around it. 5362 */ 5363 void 5364 win_setheight(int height) 5365 { 5366 win_setheight_win(height, curwin); 5367 } 5368 5369 /* 5370 * Set the window height of window "win" and take care of repositioning other 5371 * windows to fit around it. 5372 */ 5373 void 5374 win_setheight_win(int height, win_T *win) 5375 { 5376 int row; 5377 5378 if (win == curwin) 5379 { 5380 // Always keep current window at least one line high, even when 5381 // 'winminheight' is zero. 5382 if (height < p_wmh) 5383 height = p_wmh; 5384 if (height == 0) 5385 height = 1; 5386 height += WINBAR_HEIGHT(curwin); 5387 } 5388 5389 frame_setheight(win->w_frame, height + win->w_status_height); 5390 5391 // recompute the window positions 5392 row = win_comp_pos(); 5393 5394 /* 5395 * If there is extra space created between the last window and the command 5396 * line, clear it. 5397 */ 5398 if (full_screen && msg_scrolled == 0 && row < cmdline_row) 5399 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5400 cmdline_row = row; 5401 msg_row = row; 5402 msg_col = 0; 5403 5404 redraw_all_later(NOT_VALID); 5405 } 5406 5407 /* 5408 * Set the height of a frame to "height" and take care that all frames and 5409 * windows inside it are resized. Also resize frames on the left and right if 5410 * the are in the same FR_ROW frame. 5411 * 5412 * Strategy: 5413 * If the frame is part of a FR_COL frame, try fitting the frame in that 5414 * frame. If that doesn't work (the FR_COL frame is too small), recursively 5415 * go to containing frames to resize them and make room. 5416 * If the frame is part of a FR_ROW frame, all frames must be resized as well. 5417 * Check for the minimal height of the FR_ROW frame. 5418 * At the top level we can also use change the command line height. 5419 */ 5420 static void 5421 frame_setheight(frame_T *curfrp, int height) 5422 { 5423 int room; // total number of lines available 5424 int take; // number of lines taken from other windows 5425 int room_cmdline; // lines available from cmdline 5426 int run; 5427 frame_T *frp; 5428 int h; 5429 int room_reserved; 5430 5431 // If the height already is the desired value, nothing to do. 5432 if (curfrp->fr_height == height) 5433 return; 5434 5435 if (curfrp->fr_parent == NULL) 5436 { 5437 // topframe: can only change the command line 5438 if (height > ROWS_AVAIL) 5439 height = ROWS_AVAIL; 5440 if (height > 0) 5441 frame_new_height(curfrp, height, FALSE, FALSE); 5442 } 5443 else if (curfrp->fr_parent->fr_layout == FR_ROW) 5444 { 5445 // Row of frames: Also need to resize frames left and right of this 5446 // one. First check for the minimal height of these. 5447 h = frame_minheight(curfrp->fr_parent, NULL); 5448 if (height < h) 5449 height = h; 5450 frame_setheight(curfrp->fr_parent, height); 5451 } 5452 else 5453 { 5454 /* 5455 * Column of frames: try to change only frames in this column. 5456 */ 5457 /* 5458 * Do this twice: 5459 * 1: compute room available, if it's not enough try resizing the 5460 * containing frame. 5461 * 2: compute the room available and adjust the height to it. 5462 * Try not to reduce the height of a window with 'winfixheight' set. 5463 */ 5464 for (run = 1; run <= 2; ++run) 5465 { 5466 room = 0; 5467 room_reserved = 0; 5468 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5469 { 5470 if (frp != curfrp 5471 && frp->fr_win != NULL 5472 && frp->fr_win->w_p_wfh) 5473 room_reserved += frp->fr_height; 5474 room += frp->fr_height; 5475 if (frp != curfrp) 5476 room -= frame_minheight(frp, NULL); 5477 } 5478 if (curfrp->fr_width != Columns) 5479 room_cmdline = 0; 5480 else 5481 { 5482 room_cmdline = Rows - p_ch - (lastwin->w_winrow 5483 + VISIBLE_HEIGHT(lastwin) 5484 + lastwin->w_status_height); 5485 if (room_cmdline < 0) 5486 room_cmdline = 0; 5487 } 5488 5489 if (height <= room + room_cmdline) 5490 break; 5491 if (run == 2 || curfrp->fr_width == Columns) 5492 { 5493 if (height > room + room_cmdline) 5494 height = room + room_cmdline; 5495 break; 5496 } 5497 frame_setheight(curfrp->fr_parent, height 5498 + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1); 5499 } 5500 5501 /* 5502 * Compute the number of lines we will take from others frames (can be 5503 * negative!). 5504 */ 5505 take = height - curfrp->fr_height; 5506 5507 // If there is not enough room, also reduce the height of a window 5508 // with 'winfixheight' set. 5509 if (height > room + room_cmdline - room_reserved) 5510 room_reserved = room + room_cmdline - height; 5511 // If there is only a 'winfixheight' window and making the 5512 // window smaller, need to make the other window taller. 5513 if (take < 0 && room - curfrp->fr_height < room_reserved) 5514 room_reserved = 0; 5515 5516 if (take > 0 && room_cmdline > 0) 5517 { 5518 // use lines from cmdline first 5519 if (take < room_cmdline) 5520 room_cmdline = take; 5521 take -= room_cmdline; 5522 topframe->fr_height += room_cmdline; 5523 } 5524 5525 /* 5526 * set the current frame to the new height 5527 */ 5528 frame_new_height(curfrp, height, FALSE, FALSE); 5529 5530 /* 5531 * First take lines from the frames after the current frame. If 5532 * that is not enough, takes lines from frames above the current 5533 * frame. 5534 */ 5535 for (run = 0; run < 2; ++run) 5536 { 5537 if (run == 0) 5538 frp = curfrp->fr_next; // 1st run: start with next window 5539 else 5540 frp = curfrp->fr_prev; // 2nd run: start with prev window 5541 while (frp != NULL && take != 0) 5542 { 5543 h = frame_minheight(frp, NULL); 5544 if (room_reserved > 0 5545 && frp->fr_win != NULL 5546 && frp->fr_win->w_p_wfh) 5547 { 5548 if (room_reserved >= frp->fr_height) 5549 room_reserved -= frp->fr_height; 5550 else 5551 { 5552 if (frp->fr_height - room_reserved > take) 5553 room_reserved = frp->fr_height - take; 5554 take -= frp->fr_height - room_reserved; 5555 frame_new_height(frp, room_reserved, FALSE, FALSE); 5556 room_reserved = 0; 5557 } 5558 } 5559 else 5560 { 5561 if (frp->fr_height - take < h) 5562 { 5563 take -= frp->fr_height - h; 5564 frame_new_height(frp, h, FALSE, FALSE); 5565 } 5566 else 5567 { 5568 frame_new_height(frp, frp->fr_height - take, 5569 FALSE, FALSE); 5570 take = 0; 5571 } 5572 } 5573 if (run == 0) 5574 frp = frp->fr_next; 5575 else 5576 frp = frp->fr_prev; 5577 } 5578 } 5579 } 5580 } 5581 5582 /* 5583 * Set current window width and take care of repositioning other windows to 5584 * fit around it. 5585 */ 5586 void 5587 win_setwidth(int width) 5588 { 5589 win_setwidth_win(width, curwin); 5590 } 5591 5592 void 5593 win_setwidth_win(int width, win_T *wp) 5594 { 5595 // Always keep current window at least one column wide, even when 5596 // 'winminwidth' is zero. 5597 if (wp == curwin) 5598 { 5599 if (width < p_wmw) 5600 width = p_wmw; 5601 if (width == 0) 5602 width = 1; 5603 } 5604 5605 frame_setwidth(wp->w_frame, width + wp->w_vsep_width); 5606 5607 // recompute the window positions 5608 (void)win_comp_pos(); 5609 5610 redraw_all_later(NOT_VALID); 5611 } 5612 5613 /* 5614 * Set the width of a frame to "width" and take care that all frames and 5615 * windows inside it are resized. Also resize frames above and below if the 5616 * are in the same FR_ROW frame. 5617 * 5618 * Strategy is similar to frame_setheight(). 5619 */ 5620 static void 5621 frame_setwidth(frame_T *curfrp, int width) 5622 { 5623 int room; // total number of lines available 5624 int take; // number of lines taken from other windows 5625 int run; 5626 frame_T *frp; 5627 int w; 5628 int room_reserved; 5629 5630 // If the width already is the desired value, nothing to do. 5631 if (curfrp->fr_width == width) 5632 return; 5633 5634 if (curfrp->fr_parent == NULL) 5635 // topframe: can't change width 5636 return; 5637 5638 if (curfrp->fr_parent->fr_layout == FR_COL) 5639 { 5640 // Column of frames: Also need to resize frames above and below of 5641 // this one. First check for the minimal width of these. 5642 w = frame_minwidth(curfrp->fr_parent, NULL); 5643 if (width < w) 5644 width = w; 5645 frame_setwidth(curfrp->fr_parent, width); 5646 } 5647 else 5648 { 5649 /* 5650 * Row of frames: try to change only frames in this row. 5651 * 5652 * Do this twice: 5653 * 1: compute room available, if it's not enough try resizing the 5654 * containing frame. 5655 * 2: compute the room available and adjust the width to it. 5656 */ 5657 for (run = 1; run <= 2; ++run) 5658 { 5659 room = 0; 5660 room_reserved = 0; 5661 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5662 { 5663 if (frp != curfrp 5664 && frp->fr_win != NULL 5665 && frp->fr_win->w_p_wfw) 5666 room_reserved += frp->fr_width; 5667 room += frp->fr_width; 5668 if (frp != curfrp) 5669 room -= frame_minwidth(frp, NULL); 5670 } 5671 5672 if (width <= room) 5673 break; 5674 if (run == 2 || curfrp->fr_height >= ROWS_AVAIL) 5675 { 5676 if (width > room) 5677 width = room; 5678 break; 5679 } 5680 frame_setwidth(curfrp->fr_parent, width 5681 + frame_minwidth(curfrp->fr_parent, NOWIN) - (int)p_wmw - 1); 5682 } 5683 5684 /* 5685 * Compute the number of lines we will take from others frames (can be 5686 * negative!). 5687 */ 5688 take = width - curfrp->fr_width; 5689 5690 // If there is not enough room, also reduce the width of a window 5691 // with 'winfixwidth' set. 5692 if (width > room - room_reserved) 5693 room_reserved = room - width; 5694 // If there is only a 'winfixwidth' window and making the 5695 // window smaller, need to make the other window narrower. 5696 if (take < 0 && room - curfrp->fr_width < room_reserved) 5697 room_reserved = 0; 5698 5699 /* 5700 * set the current frame to the new width 5701 */ 5702 frame_new_width(curfrp, width, FALSE, FALSE); 5703 5704 /* 5705 * First take lines from the frames right of the current frame. If 5706 * that is not enough, takes lines from frames left of the current 5707 * frame. 5708 */ 5709 for (run = 0; run < 2; ++run) 5710 { 5711 if (run == 0) 5712 frp = curfrp->fr_next; // 1st run: start with next window 5713 else 5714 frp = curfrp->fr_prev; // 2nd run: start with prev window 5715 while (frp != NULL && take != 0) 5716 { 5717 w = frame_minwidth(frp, NULL); 5718 if (room_reserved > 0 5719 && frp->fr_win != NULL 5720 && frp->fr_win->w_p_wfw) 5721 { 5722 if (room_reserved >= frp->fr_width) 5723 room_reserved -= frp->fr_width; 5724 else 5725 { 5726 if (frp->fr_width - room_reserved > take) 5727 room_reserved = frp->fr_width - take; 5728 take -= frp->fr_width - room_reserved; 5729 frame_new_width(frp, room_reserved, FALSE, FALSE); 5730 room_reserved = 0; 5731 } 5732 } 5733 else 5734 { 5735 if (frp->fr_width - take < w) 5736 { 5737 take -= frp->fr_width - w; 5738 frame_new_width(frp, w, FALSE, FALSE); 5739 } 5740 else 5741 { 5742 frame_new_width(frp, frp->fr_width - take, 5743 FALSE, FALSE); 5744 take = 0; 5745 } 5746 } 5747 if (run == 0) 5748 frp = frp->fr_next; 5749 else 5750 frp = frp->fr_prev; 5751 } 5752 } 5753 } 5754 } 5755 5756 /* 5757 * Check 'winminheight' for a valid value and reduce it if needed. 5758 */ 5759 void 5760 win_setminheight(void) 5761 { 5762 int room; 5763 int needed; 5764 int first = TRUE; 5765 5766 // loop until there is a 'winminheight' that is possible 5767 while (p_wmh > 0) 5768 { 5769 room = Rows - p_ch; 5770 needed = frame_minheight(topframe, NULL); 5771 if (room >= needed) 5772 break; 5773 --p_wmh; 5774 if (first) 5775 { 5776 emsg(_(e_noroom)); 5777 first = FALSE; 5778 } 5779 } 5780 } 5781 5782 /* 5783 * Check 'winminwidth' for a valid value and reduce it if needed. 5784 */ 5785 void 5786 win_setminwidth(void) 5787 { 5788 int room; 5789 int needed; 5790 int first = TRUE; 5791 5792 // loop until there is a 'winminheight' that is possible 5793 while (p_wmw > 0) 5794 { 5795 room = Columns; 5796 needed = frame_minwidth(topframe, NULL); 5797 if (room >= needed) 5798 break; 5799 --p_wmw; 5800 if (first) 5801 { 5802 emsg(_(e_noroom)); 5803 first = FALSE; 5804 } 5805 } 5806 } 5807 5808 /* 5809 * Status line of dragwin is dragged "offset" lines down (negative is up). 5810 */ 5811 void 5812 win_drag_status_line(win_T *dragwin, int offset) 5813 { 5814 frame_T *curfr; 5815 frame_T *fr; 5816 int room; 5817 int row; 5818 int up; // if TRUE, drag status line up, otherwise down 5819 int n; 5820 5821 fr = dragwin->w_frame; 5822 curfr = fr; 5823 if (fr != topframe) // more than one window 5824 { 5825 fr = fr->fr_parent; 5826 // When the parent frame is not a column of frames, its parent should 5827 // be. 5828 if (fr->fr_layout != FR_COL) 5829 { 5830 curfr = fr; 5831 if (fr != topframe) // only a row of windows, may drag statusline 5832 fr = fr->fr_parent; 5833 } 5834 } 5835 5836 // If this is the last frame in a column, may want to resize the parent 5837 // frame instead (go two up to skip a row of frames). 5838 while (curfr != topframe && curfr->fr_next == NULL) 5839 { 5840 if (fr != topframe) 5841 fr = fr->fr_parent; 5842 curfr = fr; 5843 if (fr != topframe) 5844 fr = fr->fr_parent; 5845 } 5846 5847 if (offset < 0) // drag up 5848 { 5849 up = TRUE; 5850 offset = -offset; 5851 // sum up the room of the current frame and above it 5852 if (fr == curfr) 5853 { 5854 // only one window 5855 room = fr->fr_height - frame_minheight(fr, NULL); 5856 } 5857 else 5858 { 5859 room = 0; 5860 for (fr = fr->fr_child; ; fr = fr->fr_next) 5861 { 5862 room += fr->fr_height - frame_minheight(fr, NULL); 5863 if (fr == curfr) 5864 break; 5865 } 5866 } 5867 fr = curfr->fr_next; // put fr at frame that grows 5868 } 5869 else // drag down 5870 { 5871 up = FALSE; 5872 /* 5873 * Only dragging the last status line can reduce p_ch. 5874 */ 5875 room = Rows - cmdline_row; 5876 if (curfr->fr_next == NULL) 5877 room -= 1; 5878 else 5879 room -= p_ch; 5880 if (room < 0) 5881 room = 0; 5882 // sum up the room of frames below of the current one 5883 FOR_ALL_FRAMES(fr, curfr->fr_next) 5884 room += fr->fr_height - frame_minheight(fr, NULL); 5885 fr = curfr; // put fr at window that grows 5886 } 5887 5888 if (room < offset) // Not enough room 5889 offset = room; // Move as far as we can 5890 if (offset <= 0) 5891 return; 5892 5893 /* 5894 * Grow frame fr by "offset" lines. 5895 * Doesn't happen when dragging the last status line up. 5896 */ 5897 if (fr != NULL) 5898 frame_new_height(fr, fr->fr_height + offset, up, FALSE); 5899 5900 if (up) 5901 fr = curfr; // current frame gets smaller 5902 else 5903 fr = curfr->fr_next; // next frame gets smaller 5904 5905 /* 5906 * Now make the other frames smaller. 5907 */ 5908 while (fr != NULL && offset > 0) 5909 { 5910 n = frame_minheight(fr, NULL); 5911 if (fr->fr_height - offset <= n) 5912 { 5913 offset -= fr->fr_height - n; 5914 frame_new_height(fr, n, !up, FALSE); 5915 } 5916 else 5917 { 5918 frame_new_height(fr, fr->fr_height - offset, !up, FALSE); 5919 break; 5920 } 5921 if (up) 5922 fr = fr->fr_prev; 5923 else 5924 fr = fr->fr_next; 5925 } 5926 row = win_comp_pos(); 5927 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5928 cmdline_row = row; 5929 p_ch = Rows - cmdline_row; 5930 if (p_ch < 1) 5931 p_ch = 1; 5932 curtab->tp_ch_used = p_ch; 5933 redraw_all_later(SOME_VALID); 5934 showmode(); 5935 } 5936 5937 /* 5938 * Separator line of dragwin is dragged "offset" lines right (negative is left). 5939 */ 5940 void 5941 win_drag_vsep_line(win_T *dragwin, int offset) 5942 { 5943 frame_T *curfr; 5944 frame_T *fr; 5945 int room; 5946 int left; // if TRUE, drag separator line left, otherwise right 5947 int n; 5948 5949 fr = dragwin->w_frame; 5950 if (fr == topframe) // only one window (cannot happen?) 5951 return; 5952 curfr = fr; 5953 fr = fr->fr_parent; 5954 // When the parent frame is not a row of frames, its parent should be. 5955 if (fr->fr_layout != FR_ROW) 5956 { 5957 if (fr == topframe) // only a column of windows (cannot happen?) 5958 return; 5959 curfr = fr; 5960 fr = fr->fr_parent; 5961 } 5962 5963 // If this is the last frame in a row, may want to resize a parent 5964 // frame instead. 5965 while (curfr->fr_next == NULL) 5966 { 5967 if (fr == topframe) 5968 break; 5969 curfr = fr; 5970 fr = fr->fr_parent; 5971 if (fr != topframe) 5972 { 5973 curfr = fr; 5974 fr = fr->fr_parent; 5975 } 5976 } 5977 5978 if (offset < 0) // drag left 5979 { 5980 left = TRUE; 5981 offset = -offset; 5982 // sum up the room of the current frame and left of it 5983 room = 0; 5984 for (fr = fr->fr_child; ; fr = fr->fr_next) 5985 { 5986 room += fr->fr_width - frame_minwidth(fr, NULL); 5987 if (fr == curfr) 5988 break; 5989 } 5990 fr = curfr->fr_next; // put fr at frame that grows 5991 } 5992 else // drag right 5993 { 5994 left = FALSE; 5995 // sum up the room of frames right of the current one 5996 room = 0; 5997 FOR_ALL_FRAMES(fr, curfr->fr_next) 5998 room += fr->fr_width - frame_minwidth(fr, NULL); 5999 fr = curfr; // put fr at window that grows 6000 } 6001 6002 if (room < offset) // Not enough room 6003 offset = room; // Move as far as we can 6004 if (offset <= 0) // No room at all, quit. 6005 return; 6006 if (fr == NULL) 6007 return; // Safety check, should not happen. 6008 6009 // grow frame fr by offset lines 6010 frame_new_width(fr, fr->fr_width + offset, left, FALSE); 6011 6012 // shrink other frames: current and at the left or at the right 6013 if (left) 6014 fr = curfr; // current frame gets smaller 6015 else 6016 fr = curfr->fr_next; // next frame gets smaller 6017 6018 while (fr != NULL && offset > 0) 6019 { 6020 n = frame_minwidth(fr, NULL); 6021 if (fr->fr_width - offset <= n) 6022 { 6023 offset -= fr->fr_width - n; 6024 frame_new_width(fr, n, !left, FALSE); 6025 } 6026 else 6027 { 6028 frame_new_width(fr, fr->fr_width - offset, !left, FALSE); 6029 break; 6030 } 6031 if (left) 6032 fr = fr->fr_prev; 6033 else 6034 fr = fr->fr_next; 6035 } 6036 (void)win_comp_pos(); 6037 redraw_all_later(NOT_VALID); 6038 } 6039 6040 #define FRACTION_MULT 16384L 6041 6042 /* 6043 * Set wp->w_fraction for the current w_wrow and w_height. 6044 * Has no effect when the window is less than two lines. 6045 */ 6046 void 6047 set_fraction(win_T *wp) 6048 { 6049 if (wp->w_height > 1) 6050 // When cursor is in the first line the percentage is computed as if 6051 // it's halfway that line. Thus with two lines it is 25%, with three 6052 // lines 17%, etc. Similarly for the last line: 75%, 83%, etc. 6053 wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT 6054 + FRACTION_MULT / 2) / (long)wp->w_height; 6055 } 6056 6057 /* 6058 * Set the height of a window. 6059 * "height" excludes any window toolbar. 6060 * This takes care of the things inside the window, not what happens to the 6061 * window position, the frame or to other windows. 6062 */ 6063 void 6064 win_new_height(win_T *wp, int height) 6065 { 6066 int prev_height = wp->w_height; 6067 6068 // Don't want a negative height. Happens when splitting a tiny window. 6069 // Will equalize heights soon to fix it. 6070 if (height < 0) 6071 height = 0; 6072 if (wp->w_height == height) 6073 return; // nothing to do 6074 6075 if (wp->w_height > 0) 6076 { 6077 if (wp == curwin) 6078 // w_wrow needs to be valid. When setting 'laststatus' this may 6079 // call win_new_height() recursively. 6080 validate_cursor(); 6081 if (wp->w_height != prev_height) 6082 return; // Recursive call already changed the size, bail out here 6083 // to avoid the following to mess things up. 6084 if (wp->w_wrow != wp->w_prev_fraction_row) 6085 set_fraction(wp); 6086 } 6087 6088 wp->w_height = height; 6089 wp->w_skipcol = 0; 6090 6091 // There is no point in adjusting the scroll position when exiting. Some 6092 // values might be invalid. 6093 if (!exiting) 6094 scroll_to_fraction(wp, prev_height); 6095 } 6096 6097 void 6098 scroll_to_fraction(win_T *wp, int prev_height) 6099 { 6100 linenr_T lnum; 6101 int sline, line_size; 6102 int height = wp->w_height; 6103 6104 // Don't change w_topline in any of these cases: 6105 // - window height is 0 6106 // - 'scrollbind' is set and this isn't the current window 6107 // - window height is sufficient to display the whole buffer and first line 6108 // is visible. 6109 if (height > 0 6110 && (!wp->w_p_scb || wp == curwin) 6111 && (height < wp->w_buffer->b_ml.ml_line_count || wp->w_topline > 1)) 6112 { 6113 /* 6114 * Find a value for w_topline that shows the cursor at the same 6115 * relative position in the window as before (more or less). 6116 */ 6117 lnum = wp->w_cursor.lnum; 6118 if (lnum < 1) // can happen when starting up 6119 lnum = 1; 6120 wp->w_wrow = ((long)wp->w_fraction * (long)height - 1L) 6121 / FRACTION_MULT; 6122 line_size = plines_win_col(wp, lnum, (long)(wp->w_cursor.col)) - 1; 6123 sline = wp->w_wrow - line_size; 6124 6125 if (sline >= 0) 6126 { 6127 // Make sure the whole cursor line is visible, if possible. 6128 int rows = plines_win(wp, lnum, FALSE); 6129 6130 if (sline > wp->w_height - rows) 6131 { 6132 sline = wp->w_height - rows; 6133 wp->w_wrow -= rows - line_size; 6134 } 6135 } 6136 6137 if (sline < 0) 6138 { 6139 /* 6140 * Cursor line would go off top of screen if w_wrow was this high. 6141 * Make cursor line the first line in the window. If not enough 6142 * room use w_skipcol; 6143 */ 6144 wp->w_wrow = line_size; 6145 if (wp->w_wrow >= wp->w_height 6146 && (wp->w_width - win_col_off(wp)) > 0) 6147 { 6148 wp->w_skipcol += wp->w_width - win_col_off(wp); 6149 --wp->w_wrow; 6150 while (wp->w_wrow >= wp->w_height) 6151 { 6152 wp->w_skipcol += wp->w_width - win_col_off(wp) 6153 + win_col_off2(wp); 6154 --wp->w_wrow; 6155 } 6156 } 6157 } 6158 else if (sline > 0) 6159 { 6160 while (sline > 0 && lnum > 1) 6161 { 6162 #ifdef FEAT_FOLDING 6163 hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); 6164 if (lnum == 1) 6165 { 6166 // first line in buffer is folded 6167 line_size = 1; 6168 --sline; 6169 break; 6170 } 6171 #endif 6172 --lnum; 6173 #ifdef FEAT_DIFF 6174 if (lnum == wp->w_topline) 6175 line_size = plines_win_nofill(wp, lnum, TRUE) 6176 + wp->w_topfill; 6177 else 6178 #endif 6179 line_size = plines_win(wp, lnum, TRUE); 6180 sline -= line_size; 6181 } 6182 6183 if (sline < 0) 6184 { 6185 /* 6186 * Line we want at top would go off top of screen. Use next 6187 * line instead. 6188 */ 6189 #ifdef FEAT_FOLDING 6190 hasFoldingWin(wp, lnum, NULL, &lnum, TRUE, NULL); 6191 #endif 6192 lnum++; 6193 wp->w_wrow -= line_size + sline; 6194 } 6195 else if (sline > 0) 6196 { 6197 // First line of file reached, use that as topline. 6198 lnum = 1; 6199 wp->w_wrow -= sline; 6200 } 6201 } 6202 set_topline(wp, lnum); 6203 } 6204 6205 if (wp == curwin) 6206 { 6207 if (get_scrolloff_value()) 6208 update_topline(); 6209 curs_columns(FALSE); // validate w_wrow 6210 } 6211 if (prev_height > 0) 6212 wp->w_prev_fraction_row = wp->w_wrow; 6213 6214 win_comp_scroll(wp); 6215 redraw_win_later(wp, SOME_VALID); 6216 wp->w_redr_status = TRUE; 6217 invalidate_botline_win(wp); 6218 } 6219 6220 /* 6221 * Set the width of a window. 6222 */ 6223 void 6224 win_new_width(win_T *wp, int width) 6225 { 6226 wp->w_width = width; 6227 wp->w_lines_valid = 0; 6228 changed_line_abv_curs_win(wp); 6229 invalidate_botline_win(wp); 6230 if (wp == curwin) 6231 { 6232 update_topline(); 6233 curs_columns(TRUE); // validate w_wrow 6234 } 6235 redraw_win_later(wp, NOT_VALID); 6236 wp->w_redr_status = TRUE; 6237 } 6238 6239 void 6240 win_comp_scroll(win_T *wp) 6241 { 6242 wp->w_p_scr = ((unsigned)wp->w_height >> 1); 6243 if (wp->w_p_scr == 0) 6244 wp->w_p_scr = 1; 6245 } 6246 6247 /* 6248 * command_height: called whenever p_ch has been changed 6249 */ 6250 void 6251 command_height(void) 6252 { 6253 int h; 6254 frame_T *frp; 6255 int old_p_ch = curtab->tp_ch_used; 6256 6257 // Use the value of p_ch that we remembered. This is needed for when the 6258 // GUI starts up, we can't be sure in what order things happen. And when 6259 // p_ch was changed in another tab page. 6260 curtab->tp_ch_used = p_ch; 6261 6262 // Find bottom frame with width of screen. 6263 frp = lastwin->w_frame; 6264 while (frp->fr_width != Columns && frp->fr_parent != NULL) 6265 frp = frp->fr_parent; 6266 6267 // Avoid changing the height of a window with 'winfixheight' set. 6268 while (frp->fr_prev != NULL && frp->fr_layout == FR_LEAF 6269 && frp->fr_win->w_p_wfh) 6270 frp = frp->fr_prev; 6271 6272 if (starting != NO_SCREEN) 6273 { 6274 cmdline_row = Rows - p_ch; 6275 6276 if (p_ch > old_p_ch) // p_ch got bigger 6277 { 6278 while (p_ch > old_p_ch) 6279 { 6280 if (frp == NULL) 6281 { 6282 emsg(_(e_noroom)); 6283 p_ch = old_p_ch; 6284 curtab->tp_ch_used = p_ch; 6285 cmdline_row = Rows - p_ch; 6286 break; 6287 } 6288 h = frp->fr_height - frame_minheight(frp, NULL); 6289 if (h > p_ch - old_p_ch) 6290 h = p_ch - old_p_ch; 6291 old_p_ch += h; 6292 frame_add_height(frp, -h); 6293 frp = frp->fr_prev; 6294 } 6295 6296 // Recompute window positions. 6297 (void)win_comp_pos(); 6298 6299 // clear the lines added to cmdline 6300 if (full_screen) 6301 screen_fill((int)(cmdline_row), (int)Rows, 0, 6302 (int)Columns, ' ', ' ', 0); 6303 msg_row = cmdline_row; 6304 redraw_cmdline = TRUE; 6305 return; 6306 } 6307 6308 if (msg_row < cmdline_row) 6309 msg_row = cmdline_row; 6310 redraw_cmdline = TRUE; 6311 } 6312 frame_add_height(frp, (int)(old_p_ch - p_ch)); 6313 6314 // Recompute window positions. 6315 if (frp != lastwin->w_frame) 6316 (void)win_comp_pos(); 6317 } 6318 6319 /* 6320 * Resize frame "frp" to be "n" lines higher (negative for less high). 6321 * Also resize the frames it is contained in. 6322 */ 6323 static void 6324 frame_add_height(frame_T *frp, int n) 6325 { 6326 frame_new_height(frp, frp->fr_height + n, FALSE, FALSE); 6327 for (;;) 6328 { 6329 frp = frp->fr_parent; 6330 if (frp == NULL) 6331 break; 6332 frp->fr_height += n; 6333 } 6334 } 6335 6336 /* 6337 * Add or remove a status line for the bottom window(s), according to the 6338 * value of 'laststatus'. 6339 */ 6340 void 6341 last_status( 6342 int morewin) // pretend there are two or more windows 6343 { 6344 // Don't make a difference between horizontal or vertical split. 6345 last_status_rec(topframe, (p_ls == 2 6346 || (p_ls == 1 && (morewin || !ONE_WINDOW)))); 6347 } 6348 6349 static void 6350 last_status_rec(frame_T *fr, int statusline) 6351 { 6352 frame_T *fp; 6353 win_T *wp; 6354 6355 if (fr->fr_layout == FR_LEAF) 6356 { 6357 wp = fr->fr_win; 6358 if (wp->w_status_height != 0 && !statusline) 6359 { 6360 // remove status line 6361 win_new_height(wp, wp->w_height + 1); 6362 wp->w_status_height = 0; 6363 comp_col(); 6364 } 6365 else if (wp->w_status_height == 0 && statusline) 6366 { 6367 // Find a frame to take a line from. 6368 fp = fr; 6369 while (fp->fr_height <= frame_minheight(fp, NULL)) 6370 { 6371 if (fp == topframe) 6372 { 6373 emsg(_(e_noroom)); 6374 return; 6375 } 6376 // In a column of frames: go to frame above. If already at 6377 // the top or in a row of frames: go to parent. 6378 if (fp->fr_parent->fr_layout == FR_COL && fp->fr_prev != NULL) 6379 fp = fp->fr_prev; 6380 else 6381 fp = fp->fr_parent; 6382 } 6383 wp->w_status_height = 1; 6384 if (fp != fr) 6385 { 6386 frame_new_height(fp, fp->fr_height - 1, FALSE, FALSE); 6387 frame_fix_height(wp); 6388 (void)win_comp_pos(); 6389 } 6390 else 6391 win_new_height(wp, wp->w_height - 1); 6392 comp_col(); 6393 redraw_all_later(SOME_VALID); 6394 } 6395 } 6396 else if (fr->fr_layout == FR_ROW) 6397 { 6398 // vertically split windows, set status line for each one 6399 FOR_ALL_FRAMES(fp, fr->fr_child) 6400 last_status_rec(fp, statusline); 6401 } 6402 else 6403 { 6404 // horizontally split window, set status line for last one 6405 for (fp = fr->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 6406 ; 6407 last_status_rec(fp, statusline); 6408 } 6409 } 6410 6411 /* 6412 * Return the number of lines used by the tab page line. 6413 */ 6414 int 6415 tabline_height(void) 6416 { 6417 #ifdef FEAT_GUI_TABLINE 6418 // When the GUI has the tabline then this always returns zero. 6419 if (gui_use_tabline()) 6420 return 0; 6421 #endif 6422 switch (p_stal) 6423 { 6424 case 0: return 0; 6425 case 1: return (first_tabpage->tp_next == NULL) ? 0 : 1; 6426 } 6427 return 1; 6428 } 6429 6430 /* 6431 * Return the minimal number of rows that is needed on the screen to display 6432 * the current number of windows. 6433 */ 6434 int 6435 min_rows(void) 6436 { 6437 int total; 6438 tabpage_T *tp; 6439 int n; 6440 6441 if (firstwin == NULL) // not initialized yet 6442 return MIN_LINES; 6443 6444 total = 0; 6445 FOR_ALL_TABPAGES(tp) 6446 { 6447 n = frame_minheight(tp->tp_topframe, NULL); 6448 if (total < n) 6449 total = n; 6450 } 6451 total += tabline_height(); 6452 total += 1; // count the room for the command line 6453 return total; 6454 } 6455 6456 /* 6457 * Return TRUE if there is only one window and only one tab page, not 6458 * counting a help or preview window, unless it is the current window. 6459 * Does not count unlisted windows. 6460 */ 6461 int 6462 only_one_window(void) 6463 { 6464 int count = 0; 6465 win_T *wp; 6466 6467 #if defined(FEAT_PROP_POPUP) 6468 // If the current window is a popup then there always is another window. 6469 if (popup_is_popup(curwin)) 6470 return FALSE; 6471 #endif 6472 6473 // If there is another tab page there always is another window. 6474 if (first_tabpage->tp_next != NULL) 6475 return FALSE; 6476 6477 FOR_ALL_WINDOWS(wp) 6478 if (wp->w_buffer != NULL 6479 && (!((bt_help(wp->w_buffer) && !bt_help(curbuf)) 6480 # ifdef FEAT_QUICKFIX 6481 || wp->w_p_pvw 6482 # endif 6483 ) || wp == curwin) && wp != aucmd_win) 6484 ++count; 6485 return (count <= 1); 6486 } 6487 6488 /* 6489 * Correct the cursor line number in other windows. Used after changing the 6490 * current buffer, and before applying autocommands. 6491 * When "do_curwin" is TRUE, also check current window. 6492 */ 6493 void 6494 check_lnums(int do_curwin) 6495 { 6496 win_T *wp; 6497 tabpage_T *tp; 6498 6499 FOR_ALL_TAB_WINDOWS(tp, wp) 6500 if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) 6501 { 6502 // save the original cursor position and topline 6503 wp->w_save_cursor.w_cursor_save = wp->w_cursor; 6504 wp->w_save_cursor.w_topline_save = wp->w_topline; 6505 6506 if (wp->w_cursor.lnum > curbuf->b_ml.ml_line_count) 6507 wp->w_cursor.lnum = curbuf->b_ml.ml_line_count; 6508 if (wp->w_topline > curbuf->b_ml.ml_line_count) 6509 wp->w_topline = curbuf->b_ml.ml_line_count; 6510 6511 // save the corrected cursor position and topline 6512 wp->w_save_cursor.w_cursor_corr = wp->w_cursor; 6513 wp->w_save_cursor.w_topline_corr = wp->w_topline; 6514 } 6515 } 6516 6517 /* 6518 * Reset cursor and topline to its stored values from check_lnums(). 6519 * check_lnums() must have been called first! 6520 */ 6521 void 6522 reset_lnums() 6523 { 6524 win_T *wp; 6525 tabpage_T *tp; 6526 6527 FOR_ALL_TAB_WINDOWS(tp, wp) 6528 if (wp->w_buffer == curbuf) 6529 { 6530 // Restore the value if the autocommand didn't change it. 6531 if (EQUAL_POS(wp->w_save_cursor.w_cursor_corr, wp->w_cursor)) 6532 wp->w_cursor = wp->w_save_cursor.w_cursor_save; 6533 if (wp->w_save_cursor.w_topline_corr == wp->w_topline) 6534 wp->w_topline = wp->w_save_cursor.w_topline_save; 6535 } 6536 } 6537 6538 /* 6539 * A snapshot of the window sizes, to restore them after closing the help 6540 * window. 6541 * Only these fields are used: 6542 * fr_layout 6543 * fr_width 6544 * fr_height 6545 * fr_next 6546 * fr_child 6547 * fr_win (only valid for the old curwin, NULL otherwise) 6548 */ 6549 6550 /* 6551 * Create a snapshot of the current frame sizes. 6552 */ 6553 void 6554 make_snapshot(int idx) 6555 { 6556 clear_snapshot(curtab, idx); 6557 make_snapshot_rec(topframe, &curtab->tp_snapshot[idx]); 6558 } 6559 6560 static void 6561 make_snapshot_rec(frame_T *fr, frame_T **frp) 6562 { 6563 *frp = ALLOC_CLEAR_ONE(frame_T); 6564 if (*frp == NULL) 6565 return; 6566 (*frp)->fr_layout = fr->fr_layout; 6567 (*frp)->fr_width = fr->fr_width; 6568 (*frp)->fr_height = fr->fr_height; 6569 if (fr->fr_next != NULL) 6570 make_snapshot_rec(fr->fr_next, &((*frp)->fr_next)); 6571 if (fr->fr_child != NULL) 6572 make_snapshot_rec(fr->fr_child, &((*frp)->fr_child)); 6573 if (fr->fr_layout == FR_LEAF && fr->fr_win == curwin) 6574 (*frp)->fr_win = curwin; 6575 } 6576 6577 /* 6578 * Remove any existing snapshot. 6579 */ 6580 static void 6581 clear_snapshot(tabpage_T *tp, int idx) 6582 { 6583 clear_snapshot_rec(tp->tp_snapshot[idx]); 6584 tp->tp_snapshot[idx] = NULL; 6585 } 6586 6587 static void 6588 clear_snapshot_rec(frame_T *fr) 6589 { 6590 if (fr != NULL) 6591 { 6592 clear_snapshot_rec(fr->fr_next); 6593 clear_snapshot_rec(fr->fr_child); 6594 vim_free(fr); 6595 } 6596 } 6597 6598 /* 6599 * Restore a previously created snapshot, if there is any. 6600 * This is only done if the screen size didn't change and the window layout is 6601 * still the same. 6602 */ 6603 void 6604 restore_snapshot( 6605 int idx, 6606 int close_curwin) // closing current window 6607 { 6608 win_T *wp; 6609 6610 if (curtab->tp_snapshot[idx] != NULL 6611 && curtab->tp_snapshot[idx]->fr_width == topframe->fr_width 6612 && curtab->tp_snapshot[idx]->fr_height == topframe->fr_height 6613 && check_snapshot_rec(curtab->tp_snapshot[idx], topframe) == OK) 6614 { 6615 wp = restore_snapshot_rec(curtab->tp_snapshot[idx], topframe); 6616 win_comp_pos(); 6617 if (wp != NULL && close_curwin) 6618 win_goto(wp); 6619 redraw_all_later(NOT_VALID); 6620 } 6621 clear_snapshot(curtab, idx); 6622 } 6623 6624 /* 6625 * Check if frames "sn" and "fr" have the same layout, same following frames 6626 * and same children. And the window pointer is valid. 6627 */ 6628 static int 6629 check_snapshot_rec(frame_T *sn, frame_T *fr) 6630 { 6631 if (sn->fr_layout != fr->fr_layout 6632 || (sn->fr_next == NULL) != (fr->fr_next == NULL) 6633 || (sn->fr_child == NULL) != (fr->fr_child == NULL) 6634 || (sn->fr_next != NULL 6635 && check_snapshot_rec(sn->fr_next, fr->fr_next) == FAIL) 6636 || (sn->fr_child != NULL 6637 && check_snapshot_rec(sn->fr_child, fr->fr_child) == FAIL) 6638 || (sn->fr_win != NULL && !win_valid(sn->fr_win))) 6639 return FAIL; 6640 return OK; 6641 } 6642 6643 /* 6644 * Copy the size of snapshot frame "sn" to frame "fr". Do the same for all 6645 * following frames and children. 6646 * Returns a pointer to the old current window, or NULL. 6647 */ 6648 static win_T * 6649 restore_snapshot_rec(frame_T *sn, frame_T *fr) 6650 { 6651 win_T *wp = NULL; 6652 win_T *wp2; 6653 6654 fr->fr_height = sn->fr_height; 6655 fr->fr_width = sn->fr_width; 6656 if (fr->fr_layout == FR_LEAF) 6657 { 6658 frame_new_height(fr, fr->fr_height, FALSE, FALSE); 6659 frame_new_width(fr, fr->fr_width, FALSE, FALSE); 6660 wp = sn->fr_win; 6661 } 6662 if (sn->fr_next != NULL) 6663 { 6664 wp2 = restore_snapshot_rec(sn->fr_next, fr->fr_next); 6665 if (wp2 != NULL) 6666 wp = wp2; 6667 } 6668 if (sn->fr_child != NULL) 6669 { 6670 wp2 = restore_snapshot_rec(sn->fr_child, fr->fr_child); 6671 if (wp2 != NULL) 6672 wp = wp2; 6673 } 6674 return wp; 6675 } 6676 6677 #if defined(FEAT_GUI) || defined(PROTO) 6678 /* 6679 * Return TRUE if there is any vertically split window. 6680 */ 6681 int 6682 win_hasvertsplit(void) 6683 { 6684 frame_T *fr; 6685 6686 if (topframe->fr_layout == FR_ROW) 6687 return TRUE; 6688 6689 if (topframe->fr_layout == FR_COL) 6690 FOR_ALL_FRAMES(fr, topframe->fr_child) 6691 if (fr->fr_layout == FR_ROW) 6692 return TRUE; 6693 6694 return FALSE; 6695 } 6696 #endif 6697 6698 #if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO) 6699 int 6700 get_win_number(win_T *wp, win_T *first_win) 6701 { 6702 int i = 1; 6703 win_T *w; 6704 6705 for (w = first_win; w != NULL && w != wp; w = W_NEXT(w)) 6706 ++i; 6707 6708 if (w == NULL) 6709 return 0; 6710 else 6711 return i; 6712 } 6713 6714 int 6715 get_tab_number(tabpage_T *tp UNUSED) 6716 { 6717 int i = 1; 6718 tabpage_T *t; 6719 6720 for (t = first_tabpage; t != NULL && t != tp; t = t->tp_next) 6721 ++i; 6722 6723 if (t == NULL) 6724 return 0; 6725 else 6726 return i; 6727 } 6728 #endif 6729 6730 /* 6731 * Return TRUE if "topfrp" and its children are at the right height. 6732 */ 6733 static int 6734 frame_check_height(frame_T *topfrp, int height) 6735 { 6736 frame_T *frp; 6737 6738 if (topfrp->fr_height != height) 6739 return FALSE; 6740 6741 if (topfrp->fr_layout == FR_ROW) 6742 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6743 if (frp->fr_height != height) 6744 return FALSE; 6745 6746 return TRUE; 6747 } 6748 6749 /* 6750 * Return TRUE if "topfrp" and its children are at the right width. 6751 */ 6752 static int 6753 frame_check_width(frame_T *topfrp, int width) 6754 { 6755 frame_T *frp; 6756 6757 if (topfrp->fr_width != width) 6758 return FALSE; 6759 6760 if (topfrp->fr_layout == FR_COL) 6761 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6762 if (frp->fr_width != width) 6763 return FALSE; 6764 6765 return TRUE; 6766 } 6767 6768 #if defined(FEAT_SYN_HL) || defined(PROTO) 6769 /* 6770 * Simple int comparison function for use with qsort() 6771 */ 6772 static int 6773 int_cmp(const void *a, const void *b) 6774 { 6775 return *(const int *)a - *(const int *)b; 6776 } 6777 6778 /* 6779 * Handle setting 'colorcolumn' or 'textwidth' in window "wp". 6780 * Returns error message, NULL if it's OK. 6781 */ 6782 char * 6783 check_colorcolumn(win_T *wp) 6784 { 6785 char_u *s; 6786 int col; 6787 int count = 0; 6788 int color_cols[256]; 6789 int i; 6790 int j = 0; 6791 6792 if (wp->w_buffer == NULL) 6793 return NULL; // buffer was closed 6794 6795 for (s = wp->w_p_cc; *s != NUL && count < 255;) 6796 { 6797 if (*s == '-' || *s == '+') 6798 { 6799 // -N and +N: add to 'textwidth' 6800 col = (*s == '-') ? -1 : 1; 6801 ++s; 6802 if (!VIM_ISDIGIT(*s)) 6803 return e_invarg; 6804 col = col * getdigits(&s); 6805 if (wp->w_buffer->b_p_tw == 0) 6806 goto skip; // 'textwidth' not set, skip this item 6807 col += wp->w_buffer->b_p_tw; 6808 if (col < 0) 6809 goto skip; 6810 } 6811 else if (VIM_ISDIGIT(*s)) 6812 col = getdigits(&s); 6813 else 6814 return e_invarg; 6815 color_cols[count++] = col - 1; // 1-based to 0-based 6816 skip: 6817 if (*s == NUL) 6818 break; 6819 if (*s != ',') 6820 return e_invarg; 6821 if (*++s == NUL) 6822 return e_invarg; // illegal trailing comma as in "set cc=80," 6823 } 6824 6825 vim_free(wp->w_p_cc_cols); 6826 if (count == 0) 6827 wp->w_p_cc_cols = NULL; 6828 else 6829 { 6830 wp->w_p_cc_cols = ALLOC_MULT(int, count + 1); 6831 if (wp->w_p_cc_cols != NULL) 6832 { 6833 // sort the columns for faster usage on screen redraw inside 6834 // win_line() 6835 qsort(color_cols, count, sizeof(int), int_cmp); 6836 6837 for (i = 0; i < count; ++i) 6838 // skip duplicates 6839 if (j == 0 || wp->w_p_cc_cols[j - 1] != color_cols[i]) 6840 wp->w_p_cc_cols[j++] = color_cols[i]; 6841 wp->w_p_cc_cols[j] = -1; // end marker 6842 } 6843 } 6844 6845 return NULL; // no error 6846 } 6847 #endif 6848