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 CHECK_CMDWIN; 344 if (one_window()) 345 msg(_(m_onlyone)); 346 else 347 { 348 tabpage_T *oldtab = curtab; 349 tabpage_T *newtab; 350 351 // First create a new tab with the window, then go back to 352 // the old tab and close the window there. 353 wp = curwin; 354 if (win_new_tabpage((int)Prenum) == OK 355 && valid_tabpage(oldtab)) 356 { 357 newtab = curtab; 358 goto_tabpage_tp(oldtab, TRUE, TRUE); 359 if (curwin == wp) 360 win_close(curwin, FALSE); 361 if (valid_tabpage(newtab)) 362 goto_tabpage_tp(newtab, TRUE, TRUE); 363 } 364 } 365 break; 366 367 // cursor to top-left window 368 case 't': 369 case Ctrl_T: 370 win_goto(firstwin); 371 break; 372 373 // cursor to bottom-right window 374 case 'b': 375 case Ctrl_B: 376 win_goto(lastwin); 377 break; 378 379 // cursor to last accessed (previous) window 380 case 'p': 381 case Ctrl_P: 382 if (!win_valid(prevwin)) 383 beep_flush(); 384 else 385 win_goto(prevwin); 386 break; 387 388 // exchange current and next window 389 case 'x': 390 case Ctrl_X: 391 CHECK_CMDWIN; 392 win_exchange(Prenum); 393 break; 394 395 // rotate windows downwards 396 case Ctrl_R: 397 case 'r': 398 CHECK_CMDWIN; 399 reset_VIsual_and_resel(); // stop Visual mode 400 win_rotate(FALSE, (int)Prenum1); // downwards 401 break; 402 403 // rotate windows upwards 404 case 'R': 405 CHECK_CMDWIN; 406 reset_VIsual_and_resel(); // stop Visual mode 407 win_rotate(TRUE, (int)Prenum1); // upwards 408 break; 409 410 // move window to the very top/bottom/left/right 411 case 'K': 412 case 'J': 413 case 'H': 414 case 'L': 415 CHECK_CMDWIN; 416 win_totop((int)Prenum, 417 ((nchar == 'H' || nchar == 'L') ? WSP_VERT : 0) 418 | ((nchar == 'H' || nchar == 'K') ? WSP_TOP : WSP_BOT)); 419 break; 420 421 // make all windows the same height 422 case '=': 423 #ifdef FEAT_GUI 424 need_mouse_correct = TRUE; 425 #endif 426 win_equal(NULL, FALSE, 'b'); 427 break; 428 429 // increase current window height 430 case '+': 431 #ifdef FEAT_GUI 432 need_mouse_correct = TRUE; 433 #endif 434 win_setheight(curwin->w_height + (int)Prenum1); 435 break; 436 437 // decrease current window height 438 case '-': 439 #ifdef FEAT_GUI 440 need_mouse_correct = TRUE; 441 #endif 442 win_setheight(curwin->w_height - (int)Prenum1); 443 break; 444 445 // set current window height 446 case Ctrl__: 447 case '_': 448 #ifdef FEAT_GUI 449 need_mouse_correct = TRUE; 450 #endif 451 win_setheight(Prenum ? (int)Prenum : 9999); 452 break; 453 454 // increase current window width 455 case '>': 456 #ifdef FEAT_GUI 457 need_mouse_correct = TRUE; 458 #endif 459 win_setwidth(curwin->w_width + (int)Prenum1); 460 break; 461 462 // decrease current window width 463 case '<': 464 #ifdef FEAT_GUI 465 need_mouse_correct = TRUE; 466 #endif 467 win_setwidth(curwin->w_width - (int)Prenum1); 468 break; 469 470 // set current window width 471 case '|': 472 #ifdef FEAT_GUI 473 need_mouse_correct = TRUE; 474 #endif 475 win_setwidth(Prenum != 0 ? (int)Prenum : 9999); 476 break; 477 478 // jump to tag and split window if tag exists (in preview window) 479 #if defined(FEAT_QUICKFIX) 480 case '}': 481 CHECK_CMDWIN; 482 if (Prenum) 483 g_do_tagpreview = Prenum; 484 else 485 g_do_tagpreview = p_pvh; 486 #endif 487 // FALLTHROUGH 488 case ']': 489 case Ctrl_RSB: 490 CHECK_CMDWIN; 491 // keep Visual mode, can select words to use as a tag 492 if (Prenum) 493 postponed_split = Prenum; 494 else 495 postponed_split = -1; 496 #ifdef FEAT_QUICKFIX 497 if (nchar != '}') 498 g_do_tagpreview = 0; 499 #endif 500 501 // Execute the command right here, required when "wincmd ]" 502 // was used in a function. 503 do_nv_ident(Ctrl_RSB, NUL); 504 break; 505 506 #ifdef FEAT_SEARCHPATH 507 // edit file name under cursor in a new window 508 case 'f': 509 case 'F': 510 case Ctrl_F: 511 wingotofile: 512 CHECK_CMDWIN; 513 514 ptr = grab_file_name(Prenum1, &lnum); 515 if (ptr != NULL) 516 { 517 tabpage_T *oldtab = curtab; 518 win_T *oldwin = curwin; 519 # ifdef FEAT_GUI 520 need_mouse_correct = TRUE; 521 # endif 522 setpcmark(); 523 if (win_split(0, 0) == OK) 524 { 525 RESET_BINDING(curwin); 526 if (do_ecmd(0, ptr, NULL, NULL, ECMD_LASTL, 527 ECMD_HIDE, NULL) == FAIL) 528 { 529 // Failed to open the file, close the window 530 // opened for it. 531 win_close(curwin, FALSE); 532 goto_tabpage_win(oldtab, oldwin); 533 } 534 else if (nchar == 'F' && lnum >= 0) 535 { 536 curwin->w_cursor.lnum = lnum; 537 check_cursor_lnum(); 538 beginline(BL_SOL | BL_FIX); 539 } 540 } 541 vim_free(ptr); 542 } 543 break; 544 #endif 545 546 #ifdef FEAT_FIND_ID 547 // Go to the first occurrence of the identifier under cursor along path in a 548 // new window -- webb 549 case 'i': // Go to any match 550 case Ctrl_I: 551 type = FIND_ANY; 552 // FALLTHROUGH 553 case 'd': // Go to definition, using 'define' 554 case Ctrl_D: 555 CHECK_CMDWIN; 556 if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0) 557 break; 558 find_pattern_in_path(ptr, 0, len, TRUE, 559 Prenum == 0 ? TRUE : FALSE, type, 560 Prenum1, ACTION_SPLIT, (linenr_T)1, (linenr_T)MAXLNUM); 561 curwin->w_set_curswant = TRUE; 562 break; 563 #endif 564 565 // Quickfix window only: view the result under the cursor in a new split. 566 #if defined(FEAT_QUICKFIX) 567 case K_KENTER: 568 case CAR: 569 if (bt_quickfix(curbuf)) 570 qf_view_result(TRUE); 571 break; 572 #endif 573 574 // CTRL-W g extended commands 575 case 'g': 576 case Ctrl_G: 577 CHECK_CMDWIN; 578 #ifdef USE_ON_FLY_SCROLL 579 dont_scroll = TRUE; // disallow scrolling here 580 #endif 581 ++no_mapping; 582 ++allow_keys; // no mapping for xchar, but allow key codes 583 if (xchar == NUL) 584 xchar = plain_vgetc(); 585 LANGMAP_ADJUST(xchar, TRUE); 586 --no_mapping; 587 --allow_keys; 588 #ifdef FEAT_CMDL_INFO 589 (void)add_to_showcmd(xchar); 590 #endif 591 switch (xchar) 592 { 593 #if defined(FEAT_QUICKFIX) 594 case '}': 595 xchar = Ctrl_RSB; 596 if (Prenum) 597 g_do_tagpreview = Prenum; 598 else 599 g_do_tagpreview = p_pvh; 600 #endif 601 // FALLTHROUGH 602 case ']': 603 case Ctrl_RSB: 604 // keep Visual mode, can select words to use as a tag 605 if (Prenum) 606 postponed_split = Prenum; 607 else 608 postponed_split = -1; 609 610 // Execute the command right here, required when 611 // "wincmd g}" was used in a function. 612 do_nv_ident('g', xchar); 613 break; 614 615 #ifdef FEAT_SEARCHPATH 616 case 'f': // CTRL-W gf: "gf" in a new tab page 617 case 'F': // CTRL-W gF: "gF" in a new tab page 618 cmdmod.tab = tabpage_index(curtab) + 1; 619 nchar = xchar; 620 goto wingotofile; 621 #endif 622 case 't': // CTRL-W gt: go to next tab page 623 goto_tabpage((int)Prenum); 624 break; 625 626 case 'T': // CTRL-W gT: go to previous tab page 627 goto_tabpage(-(int)Prenum1); 628 break; 629 630 default: 631 beep_flush(); 632 break; 633 } 634 break; 635 636 default: beep_flush(); 637 break; 638 } 639 } 640 641 /* 642 * Figure out the address type for ":wincmd". 643 */ 644 void 645 get_wincmd_addr_type(char_u *arg, exarg_T *eap) 646 { 647 switch (*arg) 648 { 649 case 'S': 650 case Ctrl_S: 651 case 's': 652 case Ctrl_N: 653 case 'n': 654 case 'j': 655 case Ctrl_J: 656 case 'k': 657 case Ctrl_K: 658 case 'T': 659 case Ctrl_R: 660 case 'r': 661 case 'R': 662 case 'K': 663 case 'J': 664 case '+': 665 case '-': 666 case Ctrl__: 667 case '_': 668 case '|': 669 case ']': 670 case Ctrl_RSB: 671 case 'g': 672 case Ctrl_G: 673 case Ctrl_V: 674 case 'v': 675 case 'h': 676 case Ctrl_H: 677 case 'l': 678 case Ctrl_L: 679 case 'H': 680 case 'L': 681 case '>': 682 case '<': 683 #if defined(FEAT_QUICKFIX) 684 case '}': 685 #endif 686 #ifdef FEAT_SEARCHPATH 687 case 'f': 688 case 'F': 689 case Ctrl_F: 690 #endif 691 #ifdef FEAT_FIND_ID 692 case 'i': 693 case Ctrl_I: 694 case 'd': 695 case Ctrl_D: 696 #endif 697 // window size or any count 698 eap->addr_type = ADDR_OTHER; 699 break; 700 701 case Ctrl_HAT: 702 case '^': 703 // buffer number 704 eap->addr_type = ADDR_BUFFERS; 705 break; 706 707 case Ctrl_Q: 708 case 'q': 709 case Ctrl_C: 710 case 'c': 711 case Ctrl_O: 712 case 'o': 713 case Ctrl_W: 714 case 'w': 715 case 'W': 716 case 'x': 717 case Ctrl_X: 718 // window number 719 eap->addr_type = ADDR_WINDOWS; 720 break; 721 722 #if defined(FEAT_QUICKFIX) 723 case Ctrl_Z: 724 case 'z': 725 case 'P': 726 #endif 727 case 't': 728 case Ctrl_T: 729 case 'b': 730 case Ctrl_B: 731 case 'p': 732 case Ctrl_P: 733 case '=': 734 case CAR: 735 // no count 736 eap->addr_type = ADDR_NONE; 737 break; 738 } 739 } 740 741 static void 742 cmd_with_count( 743 char *cmd, 744 char_u *bufp, 745 size_t bufsize, 746 long Prenum) 747 { 748 size_t len = STRLEN(cmd); 749 750 STRCPY(bufp, cmd); 751 if (Prenum > 0) 752 vim_snprintf((char *)bufp + len, bufsize - len, "%ld", Prenum); 753 } 754 755 /* 756 * If "split_disallowed" is set given an error and return FAIL. 757 * Otherwise return OK. 758 */ 759 static int 760 check_split_disallowed() 761 { 762 if (split_disallowed > 0) 763 { 764 emsg(_("E242: Can't split a window while closing another")); 765 return FAIL; 766 } 767 return OK; 768 } 769 770 /* 771 * split the current window, implements CTRL-W s and :split 772 * 773 * "size" is the height or width for the new window, 0 to use half of current 774 * height or width. 775 * 776 * "flags": 777 * WSP_ROOM: require enough room for new window 778 * WSP_VERT: vertical split. 779 * WSP_TOP: open window at the top-left of the shell (help window). 780 * WSP_BOT: open window at the bottom-right of the shell (quickfix window). 781 * WSP_HELP: creating the help window, keep layout snapshot 782 * 783 * return FAIL for failure, OK otherwise 784 */ 785 int 786 win_split(int size, int flags) 787 { 788 if (ERROR_IF_ANY_POPUP_WINDOW) 789 return FAIL; 790 791 // When the ":tab" modifier was used open a new tab page instead. 792 if (may_open_tabpage() == OK) 793 return OK; 794 795 // Add flags from ":vertical", ":topleft" and ":botright". 796 flags |= cmdmod.split; 797 if ((flags & WSP_TOP) && (flags & WSP_BOT)) 798 { 799 emsg(_("E442: Can't split topleft and botright at the same time")); 800 return FAIL; 801 } 802 if (check_split_disallowed() == FAIL) 803 return FAIL; 804 805 // When creating the help window make a snapshot of the window layout. 806 // Otherwise clear the snapshot, it's now invalid. 807 if (flags & WSP_HELP) 808 make_snapshot(SNAP_HELP_IDX); 809 else 810 clear_snapshot(curtab, SNAP_HELP_IDX); 811 812 return win_split_ins(size, flags, NULL, 0); 813 } 814 815 /* 816 * When "new_wp" is NULL: split the current window in two. 817 * When "new_wp" is not NULL: insert this window at the far 818 * top/left/right/bottom. 819 * return FAIL for failure, OK otherwise 820 */ 821 int 822 win_split_ins( 823 int size, 824 int flags, 825 win_T *new_wp, 826 int dir) 827 { 828 win_T *wp = new_wp; 829 win_T *oldwin; 830 int new_size = size; 831 int i; 832 int need_status = 0; 833 int do_equal = FALSE; 834 int needed; 835 int available; 836 int oldwin_height = 0; 837 int layout; 838 frame_T *frp, *curfrp, *frp2, *prevfrp; 839 int before; 840 int minheight; 841 int wmh1; 842 int did_set_fraction = FALSE; 843 844 if (flags & WSP_TOP) 845 oldwin = firstwin; 846 else if (flags & WSP_BOT) 847 oldwin = lastwin; 848 else 849 oldwin = curwin; 850 851 // add a status line when p_ls == 1 and splitting the first window 852 if (ONE_WINDOW && p_ls == 1 && oldwin->w_status_height == 0) 853 { 854 if (VISIBLE_HEIGHT(oldwin) <= p_wmh && new_wp == NULL) 855 { 856 emsg(_(e_noroom)); 857 return FAIL; 858 } 859 need_status = STATUS_HEIGHT; 860 } 861 862 #ifdef FEAT_GUI 863 // May be needed for the scrollbars that are going to change. 864 if (gui.in_use) 865 out_flush(); 866 #endif 867 868 if (flags & WSP_VERT) 869 { 870 int wmw1; 871 int minwidth; 872 873 layout = FR_ROW; 874 875 /* 876 * Check if we are able to split the current window and compute its 877 * width. 878 */ 879 // Current window requires at least 1 space. 880 wmw1 = (p_wmw == 0 ? 1 : p_wmw); 881 needed = wmw1 + 1; 882 if (flags & WSP_ROOM) 883 needed += p_wiw - wmw1; 884 if (flags & (WSP_BOT | WSP_TOP)) 885 { 886 minwidth = frame_minwidth(topframe, NOWIN); 887 available = topframe->fr_width; 888 needed += minwidth; 889 } 890 else if (p_ea) 891 { 892 minwidth = frame_minwidth(oldwin->w_frame, NOWIN); 893 prevfrp = oldwin->w_frame; 894 for (frp = oldwin->w_frame->fr_parent; frp != NULL; 895 frp = frp->fr_parent) 896 { 897 if (frp->fr_layout == FR_ROW) 898 FOR_ALL_FRAMES(frp2, frp->fr_child) 899 if (frp2 != prevfrp) 900 minwidth += frame_minwidth(frp2, NOWIN); 901 prevfrp = frp; 902 } 903 available = topframe->fr_width; 904 needed += minwidth; 905 } 906 else 907 { 908 minwidth = frame_minwidth(oldwin->w_frame, NOWIN); 909 available = oldwin->w_frame->fr_width; 910 needed += minwidth; 911 } 912 if (available < needed && new_wp == NULL) 913 { 914 emsg(_(e_noroom)); 915 return FAIL; 916 } 917 if (new_size == 0) 918 new_size = oldwin->w_width / 2; 919 if (new_size > available - minwidth - 1) 920 new_size = available - minwidth - 1; 921 if (new_size < wmw1) 922 new_size = wmw1; 923 924 // if it doesn't fit in the current window, need win_equal() 925 if (oldwin->w_width - new_size - 1 < p_wmw) 926 do_equal = TRUE; 927 928 // We don't like to take lines for the new window from a 929 // 'winfixwidth' window. Take them from a window to the left or right 930 // instead, if possible. Add one for the separator. 931 if (oldwin->w_p_wfw) 932 win_setwidth_win(oldwin->w_width + new_size + 1, oldwin); 933 934 // Only make all windows the same width if one of them (except oldwin) 935 // is wider than one of the split windows. 936 if (!do_equal && p_ea && size == 0 && *p_ead != 'v' 937 && oldwin->w_frame->fr_parent != NULL) 938 { 939 frp = oldwin->w_frame->fr_parent->fr_child; 940 while (frp != NULL) 941 { 942 if (frp->fr_win != oldwin && frp->fr_win != NULL 943 && (frp->fr_win->w_width > new_size 944 || frp->fr_win->w_width > oldwin->w_width 945 - new_size - 1)) 946 { 947 do_equal = TRUE; 948 break; 949 } 950 frp = frp->fr_next; 951 } 952 } 953 } 954 else 955 { 956 layout = FR_COL; 957 958 /* 959 * Check if we are able to split the current window and compute its 960 * height. 961 */ 962 // Current window requires at least 1 space. 963 wmh1 = (p_wmh == 0 ? 1 : p_wmh) + WINBAR_HEIGHT(curwin); 964 needed = wmh1 + STATUS_HEIGHT; 965 if (flags & WSP_ROOM) 966 needed += p_wh - wmh1; 967 if (flags & (WSP_BOT | WSP_TOP)) 968 { 969 minheight = frame_minheight(topframe, NOWIN) + need_status; 970 available = topframe->fr_height; 971 needed += minheight; 972 } 973 else if (p_ea) 974 { 975 minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; 976 prevfrp = oldwin->w_frame; 977 for (frp = oldwin->w_frame->fr_parent; frp != NULL; 978 frp = frp->fr_parent) 979 { 980 if (frp->fr_layout == FR_COL) 981 FOR_ALL_FRAMES(frp2, frp->fr_child) 982 if (frp2 != prevfrp) 983 minheight += frame_minheight(frp2, NOWIN); 984 prevfrp = frp; 985 } 986 available = topframe->fr_height; 987 needed += minheight; 988 } 989 else 990 { 991 minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; 992 available = oldwin->w_frame->fr_height; 993 needed += minheight; 994 } 995 if (available < needed && new_wp == NULL) 996 { 997 emsg(_(e_noroom)); 998 return FAIL; 999 } 1000 oldwin_height = oldwin->w_height; 1001 if (need_status) 1002 { 1003 oldwin->w_status_height = STATUS_HEIGHT; 1004 oldwin_height -= STATUS_HEIGHT; 1005 } 1006 if (new_size == 0) 1007 new_size = oldwin_height / 2; 1008 if (new_size > available - minheight - STATUS_HEIGHT) 1009 new_size = available - minheight - STATUS_HEIGHT; 1010 if (new_size < wmh1) 1011 new_size = wmh1; 1012 1013 // if it doesn't fit in the current window, need win_equal() 1014 if (oldwin_height - new_size - STATUS_HEIGHT < p_wmh) 1015 do_equal = TRUE; 1016 1017 // We don't like to take lines for the new window from a 1018 // 'winfixheight' window. Take them from a window above or below 1019 // instead, if possible. 1020 if (oldwin->w_p_wfh) 1021 { 1022 // Set w_fraction now so that the cursor keeps the same relative 1023 // vertical position using the old height. 1024 set_fraction(oldwin); 1025 did_set_fraction = TRUE; 1026 1027 win_setheight_win(oldwin->w_height + new_size + STATUS_HEIGHT, 1028 oldwin); 1029 oldwin_height = oldwin->w_height; 1030 if (need_status) 1031 oldwin_height -= STATUS_HEIGHT; 1032 } 1033 1034 // Only make all windows the same height if one of them (except oldwin) 1035 // is higher than one of the split windows. 1036 if (!do_equal && p_ea && size == 0 && *p_ead != 'h' 1037 && oldwin->w_frame->fr_parent != NULL) 1038 { 1039 frp = oldwin->w_frame->fr_parent->fr_child; 1040 while (frp != NULL) 1041 { 1042 if (frp->fr_win != oldwin && frp->fr_win != NULL 1043 && (frp->fr_win->w_height > new_size 1044 || frp->fr_win->w_height > oldwin_height - new_size 1045 - STATUS_HEIGHT)) 1046 { 1047 do_equal = TRUE; 1048 break; 1049 } 1050 frp = frp->fr_next; 1051 } 1052 } 1053 } 1054 1055 /* 1056 * allocate new window structure and link it in the window list 1057 */ 1058 if ((flags & WSP_TOP) == 0 1059 && ((flags & WSP_BOT) 1060 || (flags & WSP_BELOW) 1061 || (!(flags & WSP_ABOVE) 1062 && ( (flags & WSP_VERT) ? p_spr : p_sb)))) 1063 { 1064 // new window below/right of current one 1065 if (new_wp == NULL) 1066 wp = win_alloc(oldwin, FALSE); 1067 else 1068 win_append(oldwin, wp); 1069 } 1070 else 1071 { 1072 if (new_wp == NULL) 1073 wp = win_alloc(oldwin->w_prev, FALSE); 1074 else 1075 win_append(oldwin->w_prev, wp); 1076 } 1077 1078 if (new_wp == NULL) 1079 { 1080 if (wp == NULL) 1081 return FAIL; 1082 1083 new_frame(wp); 1084 if (wp->w_frame == NULL) 1085 { 1086 win_free(wp, NULL); 1087 return FAIL; 1088 } 1089 1090 // make the contents of the new window the same as the current one 1091 win_init(wp, curwin, flags); 1092 } 1093 1094 /* 1095 * Reorganise the tree of frames to insert the new window. 1096 */ 1097 if (flags & (WSP_TOP | WSP_BOT)) 1098 { 1099 if ((topframe->fr_layout == FR_COL && (flags & WSP_VERT) == 0) 1100 || (topframe->fr_layout == FR_ROW && (flags & WSP_VERT) != 0)) 1101 { 1102 curfrp = topframe->fr_child; 1103 if (flags & WSP_BOT) 1104 while (curfrp->fr_next != NULL) 1105 curfrp = curfrp->fr_next; 1106 } 1107 else 1108 curfrp = topframe; 1109 before = (flags & WSP_TOP); 1110 } 1111 else 1112 { 1113 curfrp = oldwin->w_frame; 1114 if (flags & WSP_BELOW) 1115 before = FALSE; 1116 else if (flags & WSP_ABOVE) 1117 before = TRUE; 1118 else if (flags & WSP_VERT) 1119 before = !p_spr; 1120 else 1121 before = !p_sb; 1122 } 1123 if (curfrp->fr_parent == NULL || curfrp->fr_parent->fr_layout != layout) 1124 { 1125 // Need to create a new frame in the tree to make a branch. 1126 frp = ALLOC_CLEAR_ONE(frame_T); 1127 *frp = *curfrp; 1128 curfrp->fr_layout = layout; 1129 frp->fr_parent = curfrp; 1130 frp->fr_next = NULL; 1131 frp->fr_prev = NULL; 1132 curfrp->fr_child = frp; 1133 curfrp->fr_win = NULL; 1134 curfrp = frp; 1135 if (frp->fr_win != NULL) 1136 oldwin->w_frame = frp; 1137 else 1138 FOR_ALL_FRAMES(frp, frp->fr_child) 1139 frp->fr_parent = curfrp; 1140 } 1141 1142 if (new_wp == NULL) 1143 frp = wp->w_frame; 1144 else 1145 frp = new_wp->w_frame; 1146 frp->fr_parent = curfrp->fr_parent; 1147 1148 // Insert the new frame at the right place in the frame list. 1149 if (before) 1150 frame_insert(curfrp, frp); 1151 else 1152 frame_append(curfrp, frp); 1153 1154 // Set w_fraction now so that the cursor keeps the same relative 1155 // vertical position. 1156 if (!did_set_fraction) 1157 set_fraction(oldwin); 1158 wp->w_fraction = oldwin->w_fraction; 1159 1160 if (flags & WSP_VERT) 1161 { 1162 wp->w_p_scr = curwin->w_p_scr; 1163 1164 if (need_status) 1165 { 1166 win_new_height(oldwin, oldwin->w_height - 1); 1167 oldwin->w_status_height = need_status; 1168 } 1169 if (flags & (WSP_TOP | WSP_BOT)) 1170 { 1171 // set height and row of new window to full height 1172 wp->w_winrow = tabline_height(); 1173 win_new_height(wp, curfrp->fr_height - (p_ls > 0) 1174 - WINBAR_HEIGHT(wp)); 1175 wp->w_status_height = (p_ls > 0); 1176 } 1177 else 1178 { 1179 // height and row of new window is same as current window 1180 wp->w_winrow = oldwin->w_winrow; 1181 win_new_height(wp, VISIBLE_HEIGHT(oldwin)); 1182 wp->w_status_height = oldwin->w_status_height; 1183 } 1184 frp->fr_height = curfrp->fr_height; 1185 1186 // "new_size" of the current window goes to the new window, use 1187 // one column for the vertical separator 1188 win_new_width(wp, new_size); 1189 if (before) 1190 wp->w_vsep_width = 1; 1191 else 1192 { 1193 wp->w_vsep_width = oldwin->w_vsep_width; 1194 oldwin->w_vsep_width = 1; 1195 } 1196 if (flags & (WSP_TOP | WSP_BOT)) 1197 { 1198 if (flags & WSP_BOT) 1199 frame_add_vsep(curfrp); 1200 // Set width of neighbor frame 1201 frame_new_width(curfrp, curfrp->fr_width 1202 - (new_size + ((flags & WSP_TOP) != 0)), flags & WSP_TOP, 1203 FALSE); 1204 } 1205 else 1206 win_new_width(oldwin, oldwin->w_width - (new_size + 1)); 1207 if (before) // new window left of current one 1208 { 1209 wp->w_wincol = oldwin->w_wincol; 1210 oldwin->w_wincol += new_size + 1; 1211 } 1212 else // new window right of current one 1213 wp->w_wincol = oldwin->w_wincol + oldwin->w_width + 1; 1214 frame_fix_width(oldwin); 1215 frame_fix_width(wp); 1216 } 1217 else 1218 { 1219 // width and column of new window is same as current window 1220 if (flags & (WSP_TOP | WSP_BOT)) 1221 { 1222 wp->w_wincol = 0; 1223 win_new_width(wp, Columns); 1224 wp->w_vsep_width = 0; 1225 } 1226 else 1227 { 1228 wp->w_wincol = oldwin->w_wincol; 1229 win_new_width(wp, oldwin->w_width); 1230 wp->w_vsep_width = oldwin->w_vsep_width; 1231 } 1232 frp->fr_width = curfrp->fr_width; 1233 1234 // "new_size" of the current window goes to the new window, use 1235 // one row for the status line 1236 win_new_height(wp, new_size); 1237 if (flags & (WSP_TOP | WSP_BOT)) 1238 { 1239 int new_fr_height = curfrp->fr_height - new_size 1240 + WINBAR_HEIGHT(wp) ; 1241 1242 if (!((flags & WSP_BOT) && p_ls == 0)) 1243 new_fr_height -= STATUS_HEIGHT; 1244 frame_new_height(curfrp, new_fr_height, flags & WSP_TOP, FALSE); 1245 } 1246 else 1247 win_new_height(oldwin, oldwin_height - (new_size + STATUS_HEIGHT)); 1248 if (before) // new window above current one 1249 { 1250 wp->w_winrow = oldwin->w_winrow; 1251 wp->w_status_height = STATUS_HEIGHT; 1252 oldwin->w_winrow += wp->w_height + STATUS_HEIGHT; 1253 } 1254 else // new window below current one 1255 { 1256 wp->w_winrow = oldwin->w_winrow + VISIBLE_HEIGHT(oldwin) 1257 + STATUS_HEIGHT; 1258 wp->w_status_height = oldwin->w_status_height; 1259 if (!(flags & WSP_BOT)) 1260 oldwin->w_status_height = STATUS_HEIGHT; 1261 } 1262 if (flags & WSP_BOT) 1263 frame_add_statusline(curfrp); 1264 frame_fix_height(wp); 1265 frame_fix_height(oldwin); 1266 } 1267 1268 if (flags & (WSP_TOP | WSP_BOT)) 1269 (void)win_comp_pos(); 1270 1271 /* 1272 * Both windows need redrawing 1273 */ 1274 redraw_win_later(wp, NOT_VALID); 1275 wp->w_redr_status = TRUE; 1276 redraw_win_later(oldwin, NOT_VALID); 1277 oldwin->w_redr_status = TRUE; 1278 1279 if (need_status) 1280 { 1281 msg_row = Rows - 1; 1282 msg_col = sc_col; 1283 msg_clr_eos_force(); // Old command/ruler may still be there 1284 comp_col(); 1285 msg_row = Rows - 1; 1286 msg_col = 0; // put position back at start of line 1287 } 1288 1289 /* 1290 * equalize the window sizes. 1291 */ 1292 if (do_equal || dir != 0) 1293 win_equal(wp, TRUE, 1294 (flags & WSP_VERT) ? (dir == 'v' ? 'b' : 'h') 1295 : dir == 'h' ? 'b' : 'v'); 1296 1297 // Don't change the window height/width to 'winheight' / 'winwidth' if a 1298 // size was given. 1299 if (flags & WSP_VERT) 1300 { 1301 i = p_wiw; 1302 if (size != 0) 1303 p_wiw = size; 1304 1305 # ifdef FEAT_GUI 1306 // When 'guioptions' includes 'L' or 'R' may have to add scrollbars. 1307 if (gui.in_use) 1308 gui_init_which_components(NULL); 1309 # endif 1310 } 1311 else 1312 { 1313 i = p_wh; 1314 if (size != 0) 1315 p_wh = size; 1316 } 1317 1318 #ifdef FEAT_JUMPLIST 1319 // Keep same changelist position in new window. 1320 wp->w_changelistidx = oldwin->w_changelistidx; 1321 #endif 1322 1323 /* 1324 * make the new window the current window 1325 */ 1326 win_enter_ext(wp, FALSE, FALSE, TRUE, TRUE, TRUE); 1327 if (flags & WSP_VERT) 1328 p_wiw = i; 1329 else 1330 p_wh = i; 1331 1332 return OK; 1333 } 1334 1335 1336 /* 1337 * Initialize window "newp" from window "oldp". 1338 * Used when splitting a window and when creating a new tab page. 1339 * The windows will both edit the same buffer. 1340 * WSP_NEWLOC may be specified in flags to prevent the location list from 1341 * being copied. 1342 */ 1343 static void 1344 win_init(win_T *newp, win_T *oldp, int flags UNUSED) 1345 { 1346 int i; 1347 1348 newp->w_buffer = oldp->w_buffer; 1349 #ifdef FEAT_SYN_HL 1350 newp->w_s = &(oldp->w_buffer->b_s); 1351 #endif 1352 oldp->w_buffer->b_nwindows++; 1353 newp->w_cursor = oldp->w_cursor; 1354 newp->w_valid = 0; 1355 newp->w_curswant = oldp->w_curswant; 1356 newp->w_set_curswant = oldp->w_set_curswant; 1357 newp->w_topline = oldp->w_topline; 1358 #ifdef FEAT_DIFF 1359 newp->w_topfill = oldp->w_topfill; 1360 #endif 1361 newp->w_leftcol = oldp->w_leftcol; 1362 newp->w_pcmark = oldp->w_pcmark; 1363 newp->w_prev_pcmark = oldp->w_prev_pcmark; 1364 newp->w_alt_fnum = oldp->w_alt_fnum; 1365 newp->w_wrow = oldp->w_wrow; 1366 newp->w_fraction = oldp->w_fraction; 1367 newp->w_prev_fraction_row = oldp->w_prev_fraction_row; 1368 #ifdef FEAT_JUMPLIST 1369 copy_jumplist(oldp, newp); 1370 #endif 1371 #ifdef FEAT_QUICKFIX 1372 if (flags & WSP_NEWLOC) 1373 { 1374 // Don't copy the location list. 1375 newp->w_llist = NULL; 1376 newp->w_llist_ref = NULL; 1377 } 1378 else 1379 copy_loclist_stack(oldp, newp); 1380 #endif 1381 newp->w_localdir = (oldp->w_localdir == NULL) 1382 ? NULL : vim_strsave(oldp->w_localdir); 1383 1384 // copy tagstack and folds 1385 for (i = 0; i < oldp->w_tagstacklen; i++) 1386 { 1387 taggy_T *tag = &newp->w_tagstack[i]; 1388 *tag = oldp->w_tagstack[i]; 1389 if (tag->tagname != NULL) 1390 tag->tagname = vim_strsave(tag->tagname); 1391 if (tag->user_data != NULL) 1392 tag->user_data = vim_strsave(tag->user_data); 1393 } 1394 newp->w_tagstackidx = oldp->w_tagstackidx; 1395 newp->w_tagstacklen = oldp->w_tagstacklen; 1396 #ifdef FEAT_FOLDING 1397 copyFoldingState(oldp, newp); 1398 #endif 1399 1400 win_init_some(newp, oldp); 1401 1402 #ifdef FEAT_SYN_HL 1403 check_colorcolumn(newp); 1404 #endif 1405 } 1406 1407 /* 1408 * Initialize window "newp" from window "old". 1409 * Only the essential things are copied. 1410 */ 1411 static void 1412 win_init_some(win_T *newp, win_T *oldp) 1413 { 1414 // Use the same argument list. 1415 newp->w_alist = oldp->w_alist; 1416 ++newp->w_alist->al_refcount; 1417 newp->w_arg_idx = oldp->w_arg_idx; 1418 1419 // copy options from existing window 1420 win_copy_options(oldp, newp); 1421 } 1422 1423 /* 1424 * Return TRUE if "win" is a global popup or a popup in the current tab page. 1425 */ 1426 int 1427 win_valid_popup(win_T *win UNUSED) 1428 { 1429 #ifdef FEAT_PROP_POPUP 1430 win_T *wp; 1431 1432 FOR_ALL_POPUPWINS(wp) 1433 if (wp == win) 1434 return TRUE; 1435 FOR_ALL_POPUPWINS_IN_TAB(curtab, wp) 1436 if (wp == win) 1437 return TRUE; 1438 #endif 1439 return FALSE; 1440 } 1441 1442 /* 1443 * Check if "win" is a pointer to an existing window in the current tab page. 1444 */ 1445 int 1446 win_valid(win_T *win) 1447 { 1448 win_T *wp; 1449 1450 if (win == NULL) 1451 return FALSE; 1452 FOR_ALL_WINDOWS(wp) 1453 if (wp == win) 1454 return TRUE; 1455 return win_valid_popup(win); 1456 } 1457 1458 /* 1459 * Check if "win" is a pointer to an existing window in any tab page. 1460 */ 1461 int 1462 win_valid_any_tab(win_T *win) 1463 { 1464 win_T *wp; 1465 tabpage_T *tp; 1466 1467 if (win == NULL) 1468 return FALSE; 1469 FOR_ALL_TABPAGES(tp) 1470 { 1471 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 1472 { 1473 if (wp == win) 1474 return TRUE; 1475 } 1476 #ifdef FEAT_PROP_POPUP 1477 FOR_ALL_POPUPWINS_IN_TAB(tp, wp) 1478 if (wp == win) 1479 return TRUE; 1480 #endif 1481 } 1482 return win_valid_popup(win); 1483 } 1484 1485 /* 1486 * Return the number of windows. 1487 */ 1488 int 1489 win_count(void) 1490 { 1491 win_T *wp; 1492 int count = 0; 1493 1494 FOR_ALL_WINDOWS(wp) 1495 ++count; 1496 return count; 1497 } 1498 1499 /* 1500 * Make "count" windows on the screen. 1501 * Return actual number of windows on the screen. 1502 * Must be called when there is just one window, filling the whole screen 1503 * (excluding the command line). 1504 */ 1505 int 1506 make_windows( 1507 int count, 1508 int vertical UNUSED) // split windows vertically if TRUE 1509 { 1510 int maxcount; 1511 int todo; 1512 1513 if (vertical) 1514 { 1515 // Each windows needs at least 'winminwidth' lines and a separator 1516 // column. 1517 maxcount = (curwin->w_width + curwin->w_vsep_width 1518 - (p_wiw - p_wmw)) / (p_wmw + 1); 1519 } 1520 else 1521 { 1522 // Each window needs at least 'winminheight' lines and a status line. 1523 maxcount = (VISIBLE_HEIGHT(curwin) + curwin->w_status_height 1524 - (p_wh - p_wmh)) / (p_wmh + STATUS_HEIGHT); 1525 } 1526 1527 if (maxcount < 2) 1528 maxcount = 2; 1529 if (count > maxcount) 1530 count = maxcount; 1531 1532 /* 1533 * add status line now, otherwise first window will be too big 1534 */ 1535 if (count > 1) 1536 last_status(TRUE); 1537 1538 /* 1539 * Don't execute autocommands while creating the windows. Must do that 1540 * when putting the buffers in the windows. 1541 */ 1542 block_autocmds(); 1543 1544 // todo is number of windows left to create 1545 for (todo = count - 1; todo > 0; --todo) 1546 if (vertical) 1547 { 1548 if (win_split(curwin->w_width - (curwin->w_width - todo) 1549 / (todo + 1) - 1, WSP_VERT | WSP_ABOVE) == FAIL) 1550 break; 1551 } 1552 else 1553 { 1554 if (win_split(curwin->w_height - (curwin->w_height - todo 1555 * STATUS_HEIGHT) / (todo + 1) 1556 - STATUS_HEIGHT, WSP_ABOVE) == FAIL) 1557 break; 1558 } 1559 1560 unblock_autocmds(); 1561 1562 // return actual number of windows 1563 return (count - todo); 1564 } 1565 1566 /* 1567 * Exchange current and next window 1568 */ 1569 static void 1570 win_exchange(long Prenum) 1571 { 1572 frame_T *frp; 1573 frame_T *frp2; 1574 win_T *wp; 1575 win_T *wp2; 1576 int temp; 1577 1578 if (ERROR_IF_ANY_POPUP_WINDOW) 1579 return; 1580 if (ONE_WINDOW) // just one window 1581 { 1582 beep_flush(); 1583 return; 1584 } 1585 1586 #ifdef FEAT_GUI 1587 need_mouse_correct = TRUE; 1588 #endif 1589 1590 /* 1591 * find window to exchange with 1592 */ 1593 if (Prenum) 1594 { 1595 frp = curwin->w_frame->fr_parent->fr_child; 1596 while (frp != NULL && --Prenum > 0) 1597 frp = frp->fr_next; 1598 } 1599 else if (curwin->w_frame->fr_next != NULL) // Swap with next 1600 frp = curwin->w_frame->fr_next; 1601 else // Swap last window in row/col with previous 1602 frp = curwin->w_frame->fr_prev; 1603 1604 // We can only exchange a window with another window, not with a frame 1605 // containing windows. 1606 if (frp == NULL || frp->fr_win == NULL || frp->fr_win == curwin) 1607 return; 1608 wp = frp->fr_win; 1609 1610 /* 1611 * 1. remove curwin from the list. Remember after which window it was in wp2 1612 * 2. insert curwin before wp in the list 1613 * if wp != wp2 1614 * 3. remove wp from the list 1615 * 4. insert wp after wp2 1616 * 5. exchange the status line height and vsep width. 1617 */ 1618 wp2 = curwin->w_prev; 1619 frp2 = curwin->w_frame->fr_prev; 1620 if (wp->w_prev != curwin) 1621 { 1622 win_remove(curwin, NULL); 1623 frame_remove(curwin->w_frame); 1624 win_append(wp->w_prev, curwin); 1625 frame_insert(frp, curwin->w_frame); 1626 } 1627 if (wp != wp2) 1628 { 1629 win_remove(wp, NULL); 1630 frame_remove(wp->w_frame); 1631 win_append(wp2, wp); 1632 if (frp2 == NULL) 1633 frame_insert(wp->w_frame->fr_parent->fr_child, wp->w_frame); 1634 else 1635 frame_append(frp2, wp->w_frame); 1636 } 1637 temp = curwin->w_status_height; 1638 curwin->w_status_height = wp->w_status_height; 1639 wp->w_status_height = temp; 1640 temp = curwin->w_vsep_width; 1641 curwin->w_vsep_width = wp->w_vsep_width; 1642 wp->w_vsep_width = temp; 1643 1644 // If the windows are not in the same frame, exchange the sizes to avoid 1645 // messing up the window layout. Otherwise fix the frame sizes. 1646 if (curwin->w_frame->fr_parent != wp->w_frame->fr_parent) 1647 { 1648 temp = curwin->w_height; 1649 curwin->w_height = wp->w_height; 1650 wp->w_height = temp; 1651 temp = curwin->w_width; 1652 curwin->w_width = wp->w_width; 1653 wp->w_width = temp; 1654 } 1655 else 1656 { 1657 frame_fix_height(curwin); 1658 frame_fix_height(wp); 1659 frame_fix_width(curwin); 1660 frame_fix_width(wp); 1661 } 1662 1663 (void)win_comp_pos(); // recompute window positions 1664 1665 win_enter(wp, TRUE); 1666 redraw_all_later(NOT_VALID); 1667 } 1668 1669 /* 1670 * rotate windows: if upwards TRUE the second window becomes the first one 1671 * if upwards FALSE the first window becomes the second one 1672 */ 1673 static void 1674 win_rotate(int upwards, int count) 1675 { 1676 win_T *wp1; 1677 win_T *wp2; 1678 frame_T *frp; 1679 int n; 1680 1681 if (ONE_WINDOW) // nothing to do 1682 { 1683 beep_flush(); 1684 return; 1685 } 1686 1687 #ifdef FEAT_GUI 1688 need_mouse_correct = TRUE; 1689 #endif 1690 1691 // Check if all frames in this row/col have one window. 1692 FOR_ALL_FRAMES(frp, curwin->w_frame->fr_parent->fr_child) 1693 if (frp->fr_win == NULL) 1694 { 1695 emsg(_("E443: Cannot rotate when another window is split")); 1696 return; 1697 } 1698 1699 while (count--) 1700 { 1701 if (upwards) // first window becomes last window 1702 { 1703 // remove first window/frame from the list 1704 frp = curwin->w_frame->fr_parent->fr_child; 1705 wp1 = frp->fr_win; 1706 win_remove(wp1, NULL); 1707 frame_remove(frp); 1708 1709 // find last frame and append removed window/frame after it 1710 for ( ; frp->fr_next != NULL; frp = frp->fr_next) 1711 ; 1712 win_append(frp->fr_win, wp1); 1713 frame_append(frp, wp1->w_frame); 1714 1715 wp2 = frp->fr_win; // previously last window 1716 } 1717 else // last window becomes first window 1718 { 1719 // find last window/frame in the list and remove it 1720 for (frp = curwin->w_frame; frp->fr_next != NULL; 1721 frp = frp->fr_next) 1722 ; 1723 wp1 = frp->fr_win; 1724 wp2 = wp1->w_prev; // will become last window 1725 win_remove(wp1, NULL); 1726 frame_remove(frp); 1727 1728 // append the removed window/frame before the first in the list 1729 win_append(frp->fr_parent->fr_child->fr_win->w_prev, wp1); 1730 frame_insert(frp->fr_parent->fr_child, frp); 1731 } 1732 1733 // exchange status height and vsep width of old and new last window 1734 n = wp2->w_status_height; 1735 wp2->w_status_height = wp1->w_status_height; 1736 wp1->w_status_height = n; 1737 frame_fix_height(wp1); 1738 frame_fix_height(wp2); 1739 n = wp2->w_vsep_width; 1740 wp2->w_vsep_width = wp1->w_vsep_width; 1741 wp1->w_vsep_width = n; 1742 frame_fix_width(wp1); 1743 frame_fix_width(wp2); 1744 1745 // recompute w_winrow and w_wincol for all windows 1746 (void)win_comp_pos(); 1747 } 1748 1749 redraw_all_later(NOT_VALID); 1750 } 1751 1752 /* 1753 * Move the current window to the very top/bottom/left/right of the screen. 1754 */ 1755 static void 1756 win_totop(int size, int flags) 1757 { 1758 int dir; 1759 int height = curwin->w_height; 1760 1761 if (ONE_WINDOW) 1762 { 1763 beep_flush(); 1764 return; 1765 } 1766 if (check_split_disallowed() == FAIL) 1767 return; 1768 1769 // Remove the window and frame from the tree of frames. 1770 (void)winframe_remove(curwin, &dir, NULL); 1771 win_remove(curwin, NULL); 1772 last_status(FALSE); // may need to remove last status line 1773 (void)win_comp_pos(); // recompute window positions 1774 1775 // Split a window on the desired side and put the window there. 1776 (void)win_split_ins(size, flags, curwin, dir); 1777 if (!(flags & WSP_VERT)) 1778 { 1779 win_setheight(height); 1780 if (p_ea) 1781 win_equal(curwin, TRUE, 'v'); 1782 } 1783 1784 #if defined(FEAT_GUI) 1785 // When 'guioptions' includes 'L' or 'R' may have to remove or add 1786 // scrollbars. Have to update them anyway. 1787 gui_may_update_scrollbars(); 1788 #endif 1789 } 1790 1791 /* 1792 * Move window "win1" to below/right of "win2" and make "win1" the current 1793 * window. Only works within the same frame! 1794 */ 1795 void 1796 win_move_after(win_T *win1, win_T *win2) 1797 { 1798 int height; 1799 1800 // check if the arguments are reasonable 1801 if (win1 == win2) 1802 return; 1803 1804 // check if there is something to do 1805 if (win2->w_next != win1) 1806 { 1807 if (win1->w_frame->fr_parent != win2->w_frame->fr_parent) 1808 { 1809 iemsg("INTERNAL: trying to move a window into another frame"); 1810 return; 1811 } 1812 1813 // may need to move the status line/vertical separator of the last 1814 // window 1815 if (win1 == lastwin) 1816 { 1817 height = win1->w_prev->w_status_height; 1818 win1->w_prev->w_status_height = win1->w_status_height; 1819 win1->w_status_height = height; 1820 if (win1->w_prev->w_vsep_width == 1) 1821 { 1822 // Remove the vertical separator from the last-but-one window, 1823 // add it to the last window. Adjust the frame widths. 1824 win1->w_prev->w_vsep_width = 0; 1825 win1->w_prev->w_frame->fr_width -= 1; 1826 win1->w_vsep_width = 1; 1827 win1->w_frame->fr_width += 1; 1828 } 1829 } 1830 else if (win2 == lastwin) 1831 { 1832 height = win1->w_status_height; 1833 win1->w_status_height = win2->w_status_height; 1834 win2->w_status_height = height; 1835 if (win1->w_vsep_width == 1) 1836 { 1837 // Remove the vertical separator from win1, add it to the last 1838 // window, win2. Adjust the frame widths. 1839 win2->w_vsep_width = 1; 1840 win2->w_frame->fr_width += 1; 1841 win1->w_vsep_width = 0; 1842 win1->w_frame->fr_width -= 1; 1843 } 1844 } 1845 win_remove(win1, NULL); 1846 frame_remove(win1->w_frame); 1847 win_append(win2, win1); 1848 frame_append(win2->w_frame, win1->w_frame); 1849 1850 (void)win_comp_pos(); // recompute w_winrow for all windows 1851 redraw_later(NOT_VALID); 1852 } 1853 win_enter(win1, FALSE); 1854 } 1855 1856 /* 1857 * Make all windows the same height. 1858 * 'next_curwin' will soon be the current window, make sure it has enough 1859 * rows. 1860 */ 1861 void 1862 win_equal( 1863 win_T *next_curwin, // pointer to current window to be or NULL 1864 int current, // do only frame with current window 1865 int dir) // 'v' for vertically, 'h' for horizontally, 1866 // 'b' for both, 0 for using p_ead 1867 { 1868 if (dir == 0) 1869 dir = *p_ead; 1870 win_equal_rec(next_curwin == NULL ? curwin : next_curwin, current, 1871 topframe, dir, 0, tabline_height(), 1872 (int)Columns, topframe->fr_height); 1873 } 1874 1875 /* 1876 * Set a frame to a new position and height, spreading the available room 1877 * equally over contained frames. 1878 * The window "next_curwin" (if not NULL) should at least get the size from 1879 * 'winheight' and 'winwidth' if possible. 1880 */ 1881 static void 1882 win_equal_rec( 1883 win_T *next_curwin, // pointer to current window to be or NULL 1884 int current, // do only frame with current window 1885 frame_T *topfr, // frame to set size off 1886 int dir, // 'v', 'h' or 'b', see win_equal() 1887 int col, // horizontal position for frame 1888 int row, // vertical position for frame 1889 int width, // new width of frame 1890 int height) // new height of frame 1891 { 1892 int n, m; 1893 int extra_sep = 0; 1894 int wincount, totwincount = 0; 1895 frame_T *fr; 1896 int next_curwin_size = 0; 1897 int room = 0; 1898 int new_size; 1899 int has_next_curwin = 0; 1900 int hnc; 1901 1902 if (topfr->fr_layout == FR_LEAF) 1903 { 1904 // Set the width/height of this frame. 1905 // Redraw when size or position changes 1906 if (topfr->fr_height != height || topfr->fr_win->w_winrow != row 1907 || topfr->fr_width != width || topfr->fr_win->w_wincol != col 1908 ) 1909 { 1910 topfr->fr_win->w_winrow = row; 1911 frame_new_height(topfr, height, FALSE, FALSE); 1912 topfr->fr_win->w_wincol = col; 1913 frame_new_width(topfr, width, FALSE, FALSE); 1914 redraw_all_later(NOT_VALID); 1915 } 1916 } 1917 else if (topfr->fr_layout == FR_ROW) 1918 { 1919 topfr->fr_width = width; 1920 topfr->fr_height = height; 1921 1922 if (dir != 'v') // equalize frame widths 1923 { 1924 // Compute the maximum number of windows horizontally in this 1925 // frame. 1926 n = frame_minwidth(topfr, NOWIN); 1927 // add one for the rightmost window, it doesn't have a separator 1928 if (col + width == Columns) 1929 extra_sep = 1; 1930 else 1931 extra_sep = 0; 1932 totwincount = (n + extra_sep) / (p_wmw + 1); 1933 has_next_curwin = frame_has_win(topfr, next_curwin); 1934 1935 /* 1936 * Compute width for "next_curwin" window and room available for 1937 * other windows. 1938 * "m" is the minimal width when counting p_wiw for "next_curwin". 1939 */ 1940 m = frame_minwidth(topfr, next_curwin); 1941 room = width - m; 1942 if (room < 0) 1943 { 1944 next_curwin_size = p_wiw + room; 1945 room = 0; 1946 } 1947 else 1948 { 1949 next_curwin_size = -1; 1950 FOR_ALL_FRAMES(fr, topfr->fr_child) 1951 { 1952 // If 'winfixwidth' set keep the window width if 1953 // possible. 1954 // Watch out for this window being the next_curwin. 1955 if (frame_fixed_width(fr)) 1956 { 1957 n = frame_minwidth(fr, NOWIN); 1958 new_size = fr->fr_width; 1959 if (frame_has_win(fr, next_curwin)) 1960 { 1961 room += p_wiw - p_wmw; 1962 next_curwin_size = 0; 1963 if (new_size < p_wiw) 1964 new_size = p_wiw; 1965 } 1966 else 1967 // These windows don't use up room. 1968 totwincount -= (n + (fr->fr_next == NULL 1969 ? extra_sep : 0)) / (p_wmw + 1); 1970 room -= new_size - n; 1971 if (room < 0) 1972 { 1973 new_size += room; 1974 room = 0; 1975 } 1976 fr->fr_newwidth = new_size; 1977 } 1978 } 1979 if (next_curwin_size == -1) 1980 { 1981 if (!has_next_curwin) 1982 next_curwin_size = 0; 1983 else if (totwincount > 1 1984 && (room + (totwincount - 2)) 1985 / (totwincount - 1) > p_wiw) 1986 { 1987 // Can make all windows wider than 'winwidth', spread 1988 // the room equally. 1989 next_curwin_size = (room + p_wiw 1990 + (totwincount - 1) * p_wmw 1991 + (totwincount - 1)) / totwincount; 1992 room -= next_curwin_size - p_wiw; 1993 } 1994 else 1995 next_curwin_size = p_wiw; 1996 } 1997 } 1998 1999 if (has_next_curwin) 2000 --totwincount; // don't count curwin 2001 } 2002 2003 FOR_ALL_FRAMES(fr, topfr->fr_child) 2004 { 2005 wincount = 1; 2006 if (fr->fr_next == NULL) 2007 // last frame gets all that remains (avoid roundoff error) 2008 new_size = width; 2009 else if (dir == 'v') 2010 new_size = fr->fr_width; 2011 else if (frame_fixed_width(fr)) 2012 { 2013 new_size = fr->fr_newwidth; 2014 wincount = 0; // doesn't count as a sizeable window 2015 } 2016 else 2017 { 2018 // Compute the maximum number of windows horiz. in "fr". 2019 n = frame_minwidth(fr, NOWIN); 2020 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 2021 / (p_wmw + 1); 2022 m = frame_minwidth(fr, next_curwin); 2023 if (has_next_curwin) 2024 hnc = frame_has_win(fr, next_curwin); 2025 else 2026 hnc = FALSE; 2027 if (hnc) // don't count next_curwin 2028 --wincount; 2029 if (totwincount == 0) 2030 new_size = room; 2031 else 2032 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 2033 / totwincount; 2034 if (hnc) // add next_curwin size 2035 { 2036 next_curwin_size -= p_wiw - (m - n); 2037 new_size += next_curwin_size; 2038 room -= new_size - next_curwin_size; 2039 } 2040 else 2041 room -= new_size; 2042 new_size += n; 2043 } 2044 2045 // Skip frame that is full width when splitting or closing a 2046 // window, unless equalizing all frames. 2047 if (!current || dir != 'v' || topfr->fr_parent != NULL 2048 || (new_size != fr->fr_width) 2049 || frame_has_win(fr, next_curwin)) 2050 win_equal_rec(next_curwin, current, fr, dir, col, row, 2051 new_size, height); 2052 col += new_size; 2053 width -= new_size; 2054 totwincount -= wincount; 2055 } 2056 } 2057 else // topfr->fr_layout == FR_COL 2058 { 2059 topfr->fr_width = width; 2060 topfr->fr_height = height; 2061 2062 if (dir != 'h') // equalize frame heights 2063 { 2064 // Compute maximum number of windows vertically in this frame. 2065 n = frame_minheight(topfr, NOWIN); 2066 // add one for the bottom window if it doesn't have a statusline 2067 if (row + height == cmdline_row && p_ls == 0) 2068 extra_sep = 1; 2069 else 2070 extra_sep = 0; 2071 totwincount = (n + extra_sep) / (p_wmh + 1); 2072 has_next_curwin = frame_has_win(topfr, next_curwin); 2073 2074 /* 2075 * Compute height for "next_curwin" window and room available for 2076 * other windows. 2077 * "m" is the minimal height when counting p_wh for "next_curwin". 2078 */ 2079 m = frame_minheight(topfr, next_curwin); 2080 room = height - m; 2081 if (room < 0) 2082 { 2083 // The room is less then 'winheight', use all space for the 2084 // current window. 2085 next_curwin_size = p_wh + room; 2086 room = 0; 2087 } 2088 else 2089 { 2090 next_curwin_size = -1; 2091 FOR_ALL_FRAMES(fr, topfr->fr_child) 2092 { 2093 // If 'winfixheight' set keep the window height if 2094 // possible. 2095 // Watch out for this window being the next_curwin. 2096 if (frame_fixed_height(fr)) 2097 { 2098 n = frame_minheight(fr, NOWIN); 2099 new_size = fr->fr_height; 2100 if (frame_has_win(fr, next_curwin)) 2101 { 2102 room += p_wh - p_wmh; 2103 next_curwin_size = 0; 2104 if (new_size < p_wh) 2105 new_size = p_wh; 2106 } 2107 else 2108 // These windows don't use up room. 2109 totwincount -= (n + (fr->fr_next == NULL 2110 ? extra_sep : 0)) / (p_wmh + 1); 2111 room -= new_size - n; 2112 if (room < 0) 2113 { 2114 new_size += room; 2115 room = 0; 2116 } 2117 fr->fr_newheight = new_size; 2118 } 2119 } 2120 if (next_curwin_size == -1) 2121 { 2122 if (!has_next_curwin) 2123 next_curwin_size = 0; 2124 else if (totwincount > 1 2125 && (room + (totwincount - 2)) 2126 / (totwincount - 1) > p_wh) 2127 { 2128 // can make all windows higher than 'winheight', 2129 // spread the room equally. 2130 next_curwin_size = (room + p_wh 2131 + (totwincount - 1) * p_wmh 2132 + (totwincount - 1)) / totwincount; 2133 room -= next_curwin_size - p_wh; 2134 } 2135 else 2136 next_curwin_size = p_wh; 2137 } 2138 } 2139 2140 if (has_next_curwin) 2141 --totwincount; // don't count curwin 2142 } 2143 2144 FOR_ALL_FRAMES(fr, topfr->fr_child) 2145 { 2146 wincount = 1; 2147 if (fr->fr_next == NULL) 2148 // last frame gets all that remains (avoid roundoff error) 2149 new_size = height; 2150 else if (dir == 'h') 2151 new_size = fr->fr_height; 2152 else if (frame_fixed_height(fr)) 2153 { 2154 new_size = fr->fr_newheight; 2155 wincount = 0; // doesn't count as a sizeable window 2156 } 2157 else 2158 { 2159 // Compute the maximum number of windows vert. in "fr". 2160 n = frame_minheight(fr, NOWIN); 2161 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 2162 / (p_wmh + 1); 2163 m = frame_minheight(fr, next_curwin); 2164 if (has_next_curwin) 2165 hnc = frame_has_win(fr, next_curwin); 2166 else 2167 hnc = FALSE; 2168 if (hnc) // don't count next_curwin 2169 --wincount; 2170 if (totwincount == 0) 2171 new_size = room; 2172 else 2173 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 2174 / totwincount; 2175 if (hnc) // add next_curwin size 2176 { 2177 next_curwin_size -= p_wh - (m - n); 2178 new_size += next_curwin_size; 2179 room -= new_size - next_curwin_size; 2180 } 2181 else 2182 room -= new_size; 2183 new_size += n; 2184 } 2185 // Skip frame that is full width when splitting or closing a 2186 // window, unless equalizing all frames. 2187 if (!current || dir != 'h' || topfr->fr_parent != NULL 2188 || (new_size != fr->fr_height) 2189 || frame_has_win(fr, next_curwin)) 2190 win_equal_rec(next_curwin, current, fr, dir, col, row, 2191 width, new_size); 2192 row += new_size; 2193 height -= new_size; 2194 totwincount -= wincount; 2195 } 2196 } 2197 } 2198 2199 #ifdef FEAT_JOB_CHANNEL 2200 static void 2201 leaving_window(win_T *win) 2202 { 2203 // Only matters for a prompt window. 2204 if (!bt_prompt(win->w_buffer)) 2205 return; 2206 2207 // When leaving a prompt window stop Insert mode and perhaps restart 2208 // it when entering that window again. 2209 win->w_buffer->b_prompt_insert = restart_edit; 2210 if (restart_edit != 0 && mode_displayed) 2211 clear_cmdline = TRUE; // unshow mode later 2212 restart_edit = NUL; 2213 2214 // When leaving the window (or closing the window) was done from a 2215 // callback we need to break out of the Insert mode loop and restart Insert 2216 // mode when entering the window again. 2217 if (State & INSERT) 2218 { 2219 stop_insert_mode = TRUE; 2220 if (win->w_buffer->b_prompt_insert == NUL) 2221 win->w_buffer->b_prompt_insert = 'A'; 2222 } 2223 } 2224 2225 static void 2226 entering_window(win_T *win) 2227 { 2228 // Only matters for a prompt window. 2229 if (!bt_prompt(win->w_buffer)) 2230 return; 2231 2232 // When switching to a prompt buffer that was in Insert mode, don't stop 2233 // Insert mode, it may have been set in leaving_window(). 2234 if (win->w_buffer->b_prompt_insert != NUL) 2235 stop_insert_mode = FALSE; 2236 2237 // When entering the prompt window restart Insert mode if we were in Insert 2238 // mode when we left it. 2239 restart_edit = win->w_buffer->b_prompt_insert; 2240 } 2241 #endif 2242 2243 /* 2244 * Close all windows for buffer "buf". 2245 */ 2246 void 2247 close_windows( 2248 buf_T *buf, 2249 int keep_curwin) // don't close "curwin" 2250 { 2251 win_T *wp; 2252 tabpage_T *tp, *nexttp; 2253 int h = tabline_height(); 2254 int count = tabpage_index(NULL); 2255 2256 ++RedrawingDisabled; 2257 2258 for (wp = firstwin; wp != NULL && !ONE_WINDOW; ) 2259 { 2260 if (wp->w_buffer == buf && (!keep_curwin || wp != curwin) 2261 && !(wp->w_closing || wp->w_buffer->b_locked > 0)) 2262 { 2263 if (win_close(wp, FALSE) == FAIL) 2264 // If closing the window fails give up, to avoid looping 2265 // forever. 2266 break; 2267 2268 // Start all over, autocommands may change the window layout. 2269 wp = firstwin; 2270 } 2271 else 2272 wp = wp->w_next; 2273 } 2274 2275 // Also check windows in other tab pages. 2276 for (tp = first_tabpage; tp != NULL; tp = nexttp) 2277 { 2278 nexttp = tp->tp_next; 2279 if (tp != curtab) 2280 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 2281 if (wp->w_buffer == buf 2282 && !(wp->w_closing || wp->w_buffer->b_locked > 0)) 2283 { 2284 win_close_othertab(wp, FALSE, tp); 2285 2286 // Start all over, the tab page may be closed and 2287 // autocommands may change the window layout. 2288 nexttp = first_tabpage; 2289 break; 2290 } 2291 } 2292 2293 --RedrawingDisabled; 2294 2295 if (count != tabpage_index(NULL)) 2296 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2297 2298 redraw_tabline = TRUE; 2299 if (h != tabline_height()) 2300 shell_new_rows(); 2301 } 2302 2303 /* 2304 * Return TRUE if the current window is the only window that exists (ignoring 2305 * "aucmd_win"). 2306 * Returns FALSE if there is a window, possibly in another tab page. 2307 */ 2308 static int 2309 last_window(void) 2310 { 2311 return (one_window() && first_tabpage->tp_next == NULL); 2312 } 2313 2314 /* 2315 * Return TRUE if there is only one window other than "aucmd_win" in the 2316 * current tab page. 2317 */ 2318 int 2319 one_window(void) 2320 { 2321 win_T *wp; 2322 int seen_one = FALSE; 2323 2324 FOR_ALL_WINDOWS(wp) 2325 { 2326 if (wp != aucmd_win) 2327 { 2328 if (seen_one) 2329 return FALSE; 2330 seen_one = TRUE; 2331 } 2332 } 2333 return TRUE; 2334 } 2335 2336 /* 2337 * Close the possibly last window in a tab page. 2338 * Returns TRUE when the window was closed already. 2339 */ 2340 static int 2341 close_last_window_tabpage( 2342 win_T *win, 2343 int free_buf, 2344 tabpage_T *prev_curtab) 2345 { 2346 if (ONE_WINDOW) 2347 { 2348 buf_T *old_curbuf = curbuf; 2349 2350 /* 2351 * Closing the last window in a tab page. First go to another tab 2352 * page and then close the window and the tab page. This avoids that 2353 * curwin and curtab are invalid while we are freeing memory, they may 2354 * be used in GUI events. 2355 * Don't trigger autocommands yet, they may use wrong values, so do 2356 * that below. 2357 */ 2358 goto_tabpage_tp(alt_tabpage(), FALSE, TRUE); 2359 redraw_tabline = TRUE; 2360 2361 // Safety check: Autocommands may have closed the window when jumping 2362 // to the other tab page. 2363 if (valid_tabpage(prev_curtab) && prev_curtab->tp_firstwin == win) 2364 { 2365 int h = tabline_height(); 2366 2367 win_close_othertab(win, free_buf, prev_curtab); 2368 if (h != tabline_height()) 2369 shell_new_rows(); 2370 } 2371 #ifdef FEAT_JOB_CHANNEL 2372 entering_window(curwin); 2373 #endif 2374 // Since goto_tabpage_tp above did not trigger *Enter autocommands, do 2375 // that now. 2376 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2377 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 2378 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 2379 if (old_curbuf != curbuf) 2380 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2381 return TRUE; 2382 } 2383 return FALSE; 2384 } 2385 2386 /* 2387 * Close the buffer of "win" and unload it if "action" is DOBUF_UNLOAD. 2388 * "action" can also be zero (do nothing) or DOBUF_WIPE. 2389 * "abort_if_last" is passed to close_buffer(): abort closing if all other 2390 * windows are closed. 2391 */ 2392 static void 2393 win_close_buffer(win_T *win, int action, int abort_if_last) 2394 { 2395 #ifdef FEAT_SYN_HL 2396 // Free independent synblock before the buffer is freed. 2397 if (win->w_buffer != NULL) 2398 reset_synblock(win); 2399 #endif 2400 2401 #ifdef FEAT_QUICKFIX 2402 // When the quickfix/location list window is closed, unlist the buffer. 2403 if (win->w_buffer != NULL && bt_quickfix(win->w_buffer)) 2404 win->w_buffer->b_p_bl = FALSE; 2405 #endif 2406 2407 // Close the link to the buffer. 2408 if (win->w_buffer != NULL) 2409 { 2410 bufref_T bufref; 2411 2412 set_bufref(&bufref, curbuf); 2413 win->w_closing = TRUE; 2414 close_buffer(win, win->w_buffer, action, abort_if_last, FALSE); 2415 if (win_valid_any_tab(win)) 2416 win->w_closing = FALSE; 2417 // Make sure curbuf is valid. It can become invalid if 'bufhidden' is 2418 // "wipe". 2419 if (!bufref_valid(&bufref)) 2420 curbuf = firstbuf; 2421 } 2422 } 2423 2424 /* 2425 * Close window "win". Only works for the current tab page. 2426 * If "free_buf" is TRUE related buffer may be unloaded. 2427 * 2428 * Called by :quit, :close, :xit, :wq and findtag(). 2429 * Returns FAIL when the window was not closed. 2430 */ 2431 int 2432 win_close(win_T *win, int free_buf) 2433 { 2434 win_T *wp; 2435 int other_buffer = FALSE; 2436 int close_curwin = FALSE; 2437 int dir; 2438 int help_window = FALSE; 2439 tabpage_T *prev_curtab = curtab; 2440 frame_T *win_frame = win->w_frame->fr_parent; 2441 #ifdef FEAT_DIFF 2442 int had_diffmode = win->w_p_diff; 2443 #endif 2444 2445 #if defined(FEAT_TERMINAL) && defined(FEAT_PROP_POPUP) 2446 // Can close a popup window with a terminal if the job has finished. 2447 if (may_close_term_popup() == OK) 2448 return OK; 2449 #endif 2450 if (ERROR_IF_ANY_POPUP_WINDOW) 2451 return FAIL; 2452 2453 if (last_window()) 2454 { 2455 emsg(_("E444: Cannot close last window")); 2456 return FAIL; 2457 } 2458 2459 if (win->w_closing || (win->w_buffer != NULL 2460 && win->w_buffer->b_locked > 0)) 2461 return FAIL; // window is already being closed 2462 if (win_unlisted(win)) 2463 { 2464 emsg(_(e_autocmd_close)); 2465 return FAIL; 2466 } 2467 if ((firstwin == aucmd_win || lastwin == aucmd_win) && one_window()) 2468 { 2469 emsg(_("E814: Cannot close window, only autocmd window would remain")); 2470 return FAIL; 2471 } 2472 2473 // When closing the last window in a tab page first go to another tab page 2474 // and then close the window and the tab page to avoid that curwin and 2475 // curtab are invalid while we are freeing memory. 2476 if (close_last_window_tabpage(win, free_buf, prev_curtab)) 2477 return FAIL; 2478 2479 // When closing the help window, try restoring a snapshot after closing 2480 // the window. Otherwise clear the snapshot, it's now invalid. 2481 if (bt_help(win->w_buffer)) 2482 help_window = TRUE; 2483 else 2484 clear_snapshot(curtab, SNAP_HELP_IDX); 2485 2486 if (win == curwin) 2487 { 2488 #ifdef FEAT_JOB_CHANNEL 2489 leaving_window(curwin); 2490 #endif 2491 /* 2492 * Guess which window is going to be the new current window. 2493 * This may change because of the autocommands (sigh). 2494 */ 2495 wp = frame2win(win_altframe(win, NULL)); 2496 2497 /* 2498 * Be careful: If autocommands delete the window or cause this window 2499 * to be the last one left, return now. 2500 */ 2501 if (wp->w_buffer != curbuf) 2502 { 2503 other_buffer = TRUE; 2504 win->w_closing = TRUE; 2505 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 2506 if (!win_valid(win)) 2507 return FAIL; 2508 win->w_closing = FALSE; 2509 if (last_window()) 2510 return FAIL; 2511 } 2512 win->w_closing = TRUE; 2513 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 2514 if (!win_valid(win)) 2515 return FAIL; 2516 win->w_closing = FALSE; 2517 if (last_window()) 2518 return FAIL; 2519 #ifdef FEAT_EVAL 2520 // autocmds may abort script processing 2521 if (aborting()) 2522 return FAIL; 2523 #endif 2524 } 2525 2526 #ifdef FEAT_GUI 2527 // Avoid trouble with scrollbars that are going to be deleted in 2528 // win_free(). 2529 if (gui.in_use) 2530 out_flush(); 2531 #endif 2532 2533 #ifdef FEAT_PROP_POPUP 2534 if (popup_win_closed(win) && !win_valid(win)) 2535 return FAIL; 2536 #endif 2537 win_close_buffer(win, free_buf ? DOBUF_UNLOAD : 0, TRUE); 2538 2539 if (only_one_window() && win_valid(win) && win->w_buffer == NULL 2540 && (last_window() || curtab != prev_curtab 2541 || close_last_window_tabpage(win, free_buf, prev_curtab))) 2542 { 2543 // Autocommands have closed all windows, quit now. Restore 2544 // curwin->w_buffer, otherwise writing viminfo may fail. 2545 if (curwin->w_buffer == NULL) 2546 curwin->w_buffer = curbuf; 2547 getout(0); 2548 } 2549 2550 // Autocommands may have moved to another tab page. 2551 if (curtab != prev_curtab && win_valid_any_tab(win) 2552 && win->w_buffer == NULL) 2553 { 2554 // Need to close the window anyway, since the buffer is NULL. 2555 win_close_othertab(win, FALSE, prev_curtab); 2556 return FAIL; 2557 } 2558 2559 // Autocommands may have closed the window already or closed the only 2560 // other window. 2561 if (!win_valid(win) || last_window() 2562 || close_last_window_tabpage(win, free_buf, prev_curtab)) 2563 return FAIL; 2564 2565 // Now we are really going to close the window. Disallow any autocommand 2566 // to split a window to avoid trouble. 2567 ++split_disallowed; 2568 2569 // Free the memory used for the window and get the window that received 2570 // the screen space. 2571 wp = win_free_mem(win, &dir, NULL); 2572 2573 // Make sure curwin isn't invalid. It can cause severe trouble when 2574 // printing an error message. For win_equal() curbuf needs to be valid 2575 // too. 2576 if (win == curwin) 2577 { 2578 curwin = wp; 2579 #ifdef FEAT_QUICKFIX 2580 if (wp->w_p_pvw || bt_quickfix(wp->w_buffer)) 2581 { 2582 /* 2583 * If the cursor goes to the preview or the quickfix window, try 2584 * finding another window to go to. 2585 */ 2586 for (;;) 2587 { 2588 if (wp->w_next == NULL) 2589 wp = firstwin; 2590 else 2591 wp = wp->w_next; 2592 if (wp == curwin) 2593 break; 2594 if (!wp->w_p_pvw && !bt_quickfix(wp->w_buffer)) 2595 { 2596 curwin = wp; 2597 break; 2598 } 2599 } 2600 } 2601 #endif 2602 curbuf = curwin->w_buffer; 2603 close_curwin = TRUE; 2604 2605 // The cursor position may be invalid if the buffer changed after last 2606 // using the window. 2607 check_cursor(); 2608 } 2609 if (p_ea && (*p_ead == 'b' || *p_ead == dir)) 2610 // If the frame of the closed window contains the new current window, 2611 // only resize that frame. Otherwise resize all windows. 2612 win_equal(curwin, curwin->w_frame->fr_parent == win_frame, dir); 2613 else 2614 win_comp_pos(); 2615 if (close_curwin) 2616 { 2617 win_enter_ext(wp, FALSE, TRUE, FALSE, TRUE, TRUE); 2618 if (other_buffer) 2619 // careful: after this wp and win may be invalid! 2620 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2621 } 2622 2623 --split_disallowed; 2624 2625 /* 2626 * If last window has a status line now and we don't want one, 2627 * remove the status line. 2628 */ 2629 last_status(FALSE); 2630 2631 // After closing the help window, try restoring the window layout from 2632 // before it was opened. 2633 if (help_window) 2634 restore_snapshot(SNAP_HELP_IDX, close_curwin); 2635 2636 #ifdef FEAT_DIFF 2637 // If the window had 'diff' set and now there is only one window left in 2638 // the tab page with 'diff' set, and "closeoff" is in 'diffopt', then 2639 // execute ":diffoff!". 2640 if (diffopt_closeoff() && had_diffmode && curtab == prev_curtab) 2641 { 2642 int diffcount = 0; 2643 win_T *dwin; 2644 2645 FOR_ALL_WINDOWS(dwin) 2646 if (dwin->w_p_diff) 2647 ++diffcount; 2648 if (diffcount == 1) 2649 do_cmdline_cmd((char_u *)"diffoff!"); 2650 } 2651 #endif 2652 2653 #if defined(FEAT_GUI) 2654 // When 'guioptions' includes 'L' or 'R' may have to remove scrollbars. 2655 if (gui.in_use && !win_hasvertsplit()) 2656 gui_init_which_components(NULL); 2657 #endif 2658 2659 redraw_all_later(NOT_VALID); 2660 return OK; 2661 } 2662 2663 /* 2664 * Close window "win" in tab page "tp", which is not the current tab page. 2665 * This may be the last window in that tab page and result in closing the tab, 2666 * thus "tp" may become invalid! 2667 * Caller must check if buffer is hidden and whether the tabline needs to be 2668 * updated. 2669 */ 2670 void 2671 win_close_othertab(win_T *win, int free_buf, tabpage_T *tp) 2672 { 2673 win_T *wp; 2674 int dir; 2675 tabpage_T *ptp = NULL; 2676 int free_tp = FALSE; 2677 2678 // Get here with win->w_buffer == NULL when win_close() detects the tab 2679 // page changed. 2680 if (win->w_closing || (win->w_buffer != NULL 2681 && win->w_buffer->b_locked > 0)) 2682 return; // window is already being closed 2683 2684 if (win->w_buffer != NULL) 2685 // Close the link to the buffer. 2686 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, 2687 FALSE, FALSE); 2688 2689 // Careful: Autocommands may have closed the tab page or made it the 2690 // current tab page. 2691 for (ptp = first_tabpage; ptp != NULL && ptp != tp; ptp = ptp->tp_next) 2692 ; 2693 if (ptp == NULL || tp == curtab) 2694 return; 2695 2696 // Autocommands may have closed the window already. 2697 for (wp = tp->tp_firstwin; wp != NULL && wp != win; wp = wp->w_next) 2698 ; 2699 if (wp == NULL) 2700 return; 2701 2702 // When closing the last window in a tab page remove the tab page. 2703 if (tp->tp_firstwin == tp->tp_lastwin) 2704 { 2705 if (tp == first_tabpage) 2706 first_tabpage = tp->tp_next; 2707 else 2708 { 2709 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tp; 2710 ptp = ptp->tp_next) 2711 ; 2712 if (ptp == NULL) 2713 { 2714 internal_error("win_close_othertab()"); 2715 return; 2716 } 2717 ptp->tp_next = tp->tp_next; 2718 } 2719 free_tp = TRUE; 2720 } 2721 2722 // Free the memory used for the window. 2723 win_free_mem(win, &dir, tp); 2724 2725 if (free_tp) 2726 free_tabpage(tp); 2727 } 2728 2729 /* 2730 * Free the memory used for a window. 2731 * Returns a pointer to the window that got the freed up space. 2732 */ 2733 static win_T * 2734 win_free_mem( 2735 win_T *win, 2736 int *dirp, // set to 'v' or 'h' for direction if 'ea' 2737 tabpage_T *tp) // tab page "win" is in, NULL for current 2738 { 2739 frame_T *frp; 2740 win_T *wp; 2741 2742 // Remove the window and its frame from the tree of frames. 2743 frp = win->w_frame; 2744 wp = winframe_remove(win, dirp, tp); 2745 vim_free(frp); 2746 win_free(win, tp); 2747 2748 // When deleting the current window of another tab page select a new 2749 // current window. 2750 if (tp != NULL && win == tp->tp_curwin) 2751 tp->tp_curwin = wp; 2752 2753 return wp; 2754 } 2755 2756 #if defined(EXITFREE) || defined(PROTO) 2757 void 2758 win_free_all(void) 2759 { 2760 int dummy; 2761 2762 while (first_tabpage->tp_next != NULL) 2763 tabpage_close(TRUE); 2764 2765 if (aucmd_win != NULL) 2766 { 2767 (void)win_free_mem(aucmd_win, &dummy, NULL); 2768 aucmd_win = NULL; 2769 } 2770 2771 while (firstwin != NULL) 2772 (void)win_free_mem(firstwin, &dummy, NULL); 2773 2774 // No window should be used after this. Set curwin to NULL to crash 2775 // instead of using freed memory. 2776 curwin = NULL; 2777 } 2778 #endif 2779 2780 /* 2781 * Remove a window and its frame from the tree of frames. 2782 * Returns a pointer to the window that got the freed up space. 2783 */ 2784 win_T * 2785 winframe_remove( 2786 win_T *win, 2787 int *dirp UNUSED, // set to 'v' or 'h' for direction if 'ea' 2788 tabpage_T *tp) // tab page "win" is in, NULL for current 2789 { 2790 frame_T *frp, *frp2, *frp3; 2791 frame_T *frp_close = win->w_frame; 2792 win_T *wp; 2793 2794 /* 2795 * If there is only one window there is nothing to remove. 2796 */ 2797 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 2798 return NULL; 2799 2800 /* 2801 * Remove the window from its frame. 2802 */ 2803 frp2 = win_altframe(win, tp); 2804 wp = frame2win(frp2); 2805 2806 // Remove this frame from the list of frames. 2807 frame_remove(frp_close); 2808 2809 if (frp_close->fr_parent->fr_layout == FR_COL) 2810 { 2811 // When 'winfixheight' is set, try to find another frame in the column 2812 // (as close to the closed frame as possible) to distribute the height 2813 // to. 2814 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfh) 2815 { 2816 frp = frp_close->fr_prev; 2817 frp3 = frp_close->fr_next; 2818 while (frp != NULL || frp3 != NULL) 2819 { 2820 if (frp != NULL) 2821 { 2822 if (!frame_fixed_height(frp)) 2823 { 2824 frp2 = frp; 2825 wp = frame2win(frp2); 2826 break; 2827 } 2828 frp = frp->fr_prev; 2829 } 2830 if (frp3 != NULL) 2831 { 2832 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfh) 2833 { 2834 frp2 = frp3; 2835 wp = frp3->fr_win; 2836 break; 2837 } 2838 frp3 = frp3->fr_next; 2839 } 2840 } 2841 } 2842 frame_new_height(frp2, frp2->fr_height + frp_close->fr_height, 2843 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2844 *dirp = 'v'; 2845 } 2846 else 2847 { 2848 // When 'winfixwidth' is set, try to find another frame in the column 2849 // (as close to the closed frame as possible) to distribute the width 2850 // to. 2851 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfw) 2852 { 2853 frp = frp_close->fr_prev; 2854 frp3 = frp_close->fr_next; 2855 while (frp != NULL || frp3 != NULL) 2856 { 2857 if (frp != NULL) 2858 { 2859 if (!frame_fixed_width(frp)) 2860 { 2861 frp2 = frp; 2862 wp = frame2win(frp2); 2863 break; 2864 } 2865 frp = frp->fr_prev; 2866 } 2867 if (frp3 != NULL) 2868 { 2869 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfw) 2870 { 2871 frp2 = frp3; 2872 wp = frp3->fr_win; 2873 break; 2874 } 2875 frp3 = frp3->fr_next; 2876 } 2877 } 2878 } 2879 frame_new_width(frp2, frp2->fr_width + frp_close->fr_width, 2880 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2881 *dirp = 'h'; 2882 } 2883 2884 // If rows/columns go to a window below/right its positions need to be 2885 // updated. Can only be done after the sizes have been updated. 2886 if (frp2 == frp_close->fr_next) 2887 { 2888 int row = win->w_winrow; 2889 int col = win->w_wincol; 2890 2891 frame_comp_pos(frp2, &row, &col); 2892 } 2893 2894 if (frp2->fr_next == NULL && frp2->fr_prev == NULL) 2895 { 2896 // There is no other frame in this list, move its info to the parent 2897 // and remove it. 2898 frp2->fr_parent->fr_layout = frp2->fr_layout; 2899 frp2->fr_parent->fr_child = frp2->fr_child; 2900 FOR_ALL_FRAMES(frp, frp2->fr_child) 2901 frp->fr_parent = frp2->fr_parent; 2902 frp2->fr_parent->fr_win = frp2->fr_win; 2903 if (frp2->fr_win != NULL) 2904 frp2->fr_win->w_frame = frp2->fr_parent; 2905 frp = frp2->fr_parent; 2906 if (topframe->fr_child == frp2) 2907 topframe->fr_child = frp; 2908 vim_free(frp2); 2909 2910 frp2 = frp->fr_parent; 2911 if (frp2 != NULL && frp2->fr_layout == frp->fr_layout) 2912 { 2913 // The frame above the parent has the same layout, have to merge 2914 // the frames into this list. 2915 if (frp2->fr_child == frp) 2916 frp2->fr_child = frp->fr_child; 2917 frp->fr_child->fr_prev = frp->fr_prev; 2918 if (frp->fr_prev != NULL) 2919 frp->fr_prev->fr_next = frp->fr_child; 2920 for (frp3 = frp->fr_child; ; frp3 = frp3->fr_next) 2921 { 2922 frp3->fr_parent = frp2; 2923 if (frp3->fr_next == NULL) 2924 { 2925 frp3->fr_next = frp->fr_next; 2926 if (frp->fr_next != NULL) 2927 frp->fr_next->fr_prev = frp3; 2928 break; 2929 } 2930 } 2931 if (topframe->fr_child == frp) 2932 topframe->fr_child = frp2; 2933 vim_free(frp); 2934 } 2935 } 2936 2937 return wp; 2938 } 2939 2940 /* 2941 * Return a pointer to the frame that will receive the empty screen space that 2942 * is left over after "win" is closed. 2943 * 2944 * If 'splitbelow' or 'splitright' is set, the space goes above or to the left 2945 * by default. Otherwise, the free space goes below or to the right. The 2946 * result is that opening a window and then immediately closing it will 2947 * preserve the initial window layout. The 'wfh' and 'wfw' settings are 2948 * respected when possible. 2949 */ 2950 static frame_T * 2951 win_altframe( 2952 win_T *win, 2953 tabpage_T *tp) // tab page "win" is in, NULL for current 2954 { 2955 frame_T *frp; 2956 frame_T *other_fr, *target_fr; 2957 2958 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 2959 return alt_tabpage()->tp_curwin->w_frame; 2960 2961 frp = win->w_frame; 2962 2963 if (frp->fr_prev == NULL) 2964 return frp->fr_next; 2965 if (frp->fr_next == NULL) 2966 return frp->fr_prev; 2967 2968 // By default the next window will get the space that was abandoned by this 2969 // window 2970 target_fr = frp->fr_next; 2971 other_fr = frp->fr_prev; 2972 2973 // If this is part of a column of windows and 'splitbelow' is true then the 2974 // previous window will get the space. 2975 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_COL && p_sb) 2976 { 2977 target_fr = frp->fr_prev; 2978 other_fr = frp->fr_next; 2979 } 2980 2981 // If this is part of a row of windows, and 'splitright' is true then the 2982 // previous window will get the space. 2983 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW && p_spr) 2984 { 2985 target_fr = frp->fr_prev; 2986 other_fr = frp->fr_next; 2987 } 2988 2989 // If 'wfh' or 'wfw' is set for the target and not for the alternate 2990 // window, reverse the selection. 2991 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW) 2992 { 2993 if (frame_fixed_width(target_fr) && !frame_fixed_width(other_fr)) 2994 target_fr = other_fr; 2995 } 2996 else 2997 { 2998 if (frame_fixed_height(target_fr) && !frame_fixed_height(other_fr)) 2999 target_fr = other_fr; 3000 } 3001 3002 return target_fr; 3003 } 3004 3005 /* 3006 * Return the tabpage that will be used if the current one is closed. 3007 */ 3008 static tabpage_T * 3009 alt_tabpage(void) 3010 { 3011 tabpage_T *tp; 3012 3013 // Use the next tab page if possible. 3014 if (curtab->tp_next != NULL) 3015 return curtab->tp_next; 3016 3017 // Find the last but one tab page. 3018 for (tp = first_tabpage; tp->tp_next != curtab; tp = tp->tp_next) 3019 ; 3020 return tp; 3021 } 3022 3023 /* 3024 * Find the left-upper window in frame "frp". 3025 */ 3026 static win_T * 3027 frame2win(frame_T *frp) 3028 { 3029 while (frp->fr_win == NULL) 3030 frp = frp->fr_child; 3031 return frp->fr_win; 3032 } 3033 3034 /* 3035 * Return TRUE if frame "frp" contains window "wp". 3036 */ 3037 static int 3038 frame_has_win(frame_T *frp, win_T *wp) 3039 { 3040 frame_T *p; 3041 3042 if (frp->fr_layout == FR_LEAF) 3043 return frp->fr_win == wp; 3044 3045 FOR_ALL_FRAMES(p, frp->fr_child) 3046 if (frame_has_win(p, wp)) 3047 return TRUE; 3048 return FALSE; 3049 } 3050 3051 /* 3052 * Set a new height for a frame. Recursively sets the height for contained 3053 * frames and windows. Caller must take care of positions. 3054 */ 3055 static void 3056 frame_new_height( 3057 frame_T *topfrp, 3058 int height, 3059 int topfirst, // resize topmost contained frame first 3060 int wfh) // obey 'winfixheight' when there is a choice; 3061 // may cause the height not to be set 3062 { 3063 frame_T *frp; 3064 int extra_lines; 3065 int h; 3066 3067 if (topfrp->fr_win != NULL) 3068 { 3069 // Simple case: just one window. 3070 win_new_height(topfrp->fr_win, 3071 height - topfrp->fr_win->w_status_height 3072 - WINBAR_HEIGHT(topfrp->fr_win)); 3073 } 3074 else if (topfrp->fr_layout == FR_ROW) 3075 { 3076 do 3077 { 3078 // All frames in this row get the same new height. 3079 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3080 { 3081 frame_new_height(frp, height, topfirst, wfh); 3082 if (frp->fr_height > height) 3083 { 3084 // Could not fit the windows, make the whole row higher. 3085 height = frp->fr_height; 3086 break; 3087 } 3088 } 3089 } 3090 while (frp != NULL); 3091 } 3092 else // fr_layout == FR_COL 3093 { 3094 // Complicated case: Resize a column of frames. Resize the bottom 3095 // frame first, frames above that when needed. 3096 3097 frp = topfrp->fr_child; 3098 if (wfh) 3099 // Advance past frames with one window with 'wfh' set. 3100 while (frame_fixed_height(frp)) 3101 { 3102 frp = frp->fr_next; 3103 if (frp == NULL) 3104 return; // no frame without 'wfh', give up 3105 } 3106 if (!topfirst) 3107 { 3108 // Find the bottom frame of this column 3109 while (frp->fr_next != NULL) 3110 frp = frp->fr_next; 3111 if (wfh) 3112 // Advance back for frames with one window with 'wfh' set. 3113 while (frame_fixed_height(frp)) 3114 frp = frp->fr_prev; 3115 } 3116 3117 extra_lines = height - topfrp->fr_height; 3118 if (extra_lines < 0) 3119 { 3120 // reduce height of contained frames, bottom or top frame first 3121 while (frp != NULL) 3122 { 3123 h = frame_minheight(frp, NULL); 3124 if (frp->fr_height + extra_lines < h) 3125 { 3126 extra_lines += frp->fr_height - h; 3127 frame_new_height(frp, h, topfirst, wfh); 3128 } 3129 else 3130 { 3131 frame_new_height(frp, frp->fr_height + extra_lines, 3132 topfirst, wfh); 3133 break; 3134 } 3135 if (topfirst) 3136 { 3137 do 3138 frp = frp->fr_next; 3139 while (wfh && frp != NULL && frame_fixed_height(frp)); 3140 } 3141 else 3142 { 3143 do 3144 frp = frp->fr_prev; 3145 while (wfh && frp != NULL && frame_fixed_height(frp)); 3146 } 3147 // Increase "height" if we could not reduce enough frames. 3148 if (frp == NULL) 3149 height -= extra_lines; 3150 } 3151 } 3152 else if (extra_lines > 0) 3153 { 3154 // increase height of bottom or top frame 3155 frame_new_height(frp, frp->fr_height + extra_lines, topfirst, wfh); 3156 } 3157 } 3158 topfrp->fr_height = height; 3159 } 3160 3161 /* 3162 * Return TRUE if height of frame "frp" should not be changed because of 3163 * the 'winfixheight' option. 3164 */ 3165 static int 3166 frame_fixed_height(frame_T *frp) 3167 { 3168 // frame with one window: fixed height if 'winfixheight' set. 3169 if (frp->fr_win != NULL) 3170 return frp->fr_win->w_p_wfh; 3171 3172 if (frp->fr_layout == FR_ROW) 3173 { 3174 // The frame is fixed height if one of the frames in the row is fixed 3175 // height. 3176 FOR_ALL_FRAMES(frp, frp->fr_child) 3177 if (frame_fixed_height(frp)) 3178 return TRUE; 3179 return FALSE; 3180 } 3181 3182 // frp->fr_layout == FR_COL: The frame is fixed height if all of the 3183 // frames in the row are fixed height. 3184 FOR_ALL_FRAMES(frp, frp->fr_child) 3185 if (!frame_fixed_height(frp)) 3186 return FALSE; 3187 return TRUE; 3188 } 3189 3190 /* 3191 * Return TRUE if width of frame "frp" should not be changed because of 3192 * the 'winfixwidth' option. 3193 */ 3194 static int 3195 frame_fixed_width(frame_T *frp) 3196 { 3197 // frame with one window: fixed width if 'winfixwidth' set. 3198 if (frp->fr_win != NULL) 3199 return frp->fr_win->w_p_wfw; 3200 3201 if (frp->fr_layout == FR_COL) 3202 { 3203 // The frame is fixed width if one of the frames in the row is fixed 3204 // width. 3205 FOR_ALL_FRAMES(frp, frp->fr_child) 3206 if (frame_fixed_width(frp)) 3207 return TRUE; 3208 return FALSE; 3209 } 3210 3211 // frp->fr_layout == FR_ROW: The frame is fixed width if all of the 3212 // frames in the row are fixed width. 3213 FOR_ALL_FRAMES(frp, frp->fr_child) 3214 if (!frame_fixed_width(frp)) 3215 return FALSE; 3216 return TRUE; 3217 } 3218 3219 /* 3220 * Add a status line to windows at the bottom of "frp". 3221 * Note: Does not check if there is room! 3222 */ 3223 static void 3224 frame_add_statusline(frame_T *frp) 3225 { 3226 win_T *wp; 3227 3228 if (frp->fr_layout == FR_LEAF) 3229 { 3230 wp = frp->fr_win; 3231 if (wp->w_status_height == 0) 3232 { 3233 if (wp->w_height > 0) // don't make it negative 3234 --wp->w_height; 3235 wp->w_status_height = STATUS_HEIGHT; 3236 } 3237 } 3238 else if (frp->fr_layout == FR_ROW) 3239 { 3240 // Handle all the frames in the row. 3241 FOR_ALL_FRAMES(frp, frp->fr_child) 3242 frame_add_statusline(frp); 3243 } 3244 else // frp->fr_layout == FR_COL 3245 { 3246 // Only need to handle the last frame in the column. 3247 for (frp = frp->fr_child; frp->fr_next != NULL; frp = frp->fr_next) 3248 ; 3249 frame_add_statusline(frp); 3250 } 3251 } 3252 3253 /* 3254 * Set width of a frame. Handles recursively going through contained frames. 3255 * May remove separator line for windows at the right side (for win_close()). 3256 */ 3257 static void 3258 frame_new_width( 3259 frame_T *topfrp, 3260 int width, 3261 int leftfirst, // resize leftmost contained frame first 3262 int wfw) // obey 'winfixwidth' when there is a choice; 3263 // may cause the width not to be set 3264 { 3265 frame_T *frp; 3266 int extra_cols; 3267 int w; 3268 win_T *wp; 3269 3270 if (topfrp->fr_layout == FR_LEAF) 3271 { 3272 // Simple case: just one window. 3273 wp = topfrp->fr_win; 3274 // Find out if there are any windows right of this one. 3275 for (frp = topfrp; frp->fr_parent != NULL; frp = frp->fr_parent) 3276 if (frp->fr_parent->fr_layout == FR_ROW && frp->fr_next != NULL) 3277 break; 3278 if (frp->fr_parent == NULL) 3279 wp->w_vsep_width = 0; 3280 win_new_width(wp, width - wp->w_vsep_width); 3281 } 3282 else if (topfrp->fr_layout == FR_COL) 3283 { 3284 do 3285 { 3286 // All frames in this column get the same new width. 3287 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3288 { 3289 frame_new_width(frp, width, leftfirst, wfw); 3290 if (frp->fr_width > width) 3291 { 3292 // Could not fit the windows, make whole column wider. 3293 width = frp->fr_width; 3294 break; 3295 } 3296 } 3297 } while (frp != NULL); 3298 } 3299 else // fr_layout == FR_ROW 3300 { 3301 // Complicated case: Resize a row of frames. Resize the rightmost 3302 // frame first, frames left of it when needed. 3303 3304 frp = topfrp->fr_child; 3305 if (wfw) 3306 // Advance past frames with one window with 'wfw' set. 3307 while (frame_fixed_width(frp)) 3308 { 3309 frp = frp->fr_next; 3310 if (frp == NULL) 3311 return; // no frame without 'wfw', give up 3312 } 3313 if (!leftfirst) 3314 { 3315 // Find the rightmost frame of this row 3316 while (frp->fr_next != NULL) 3317 frp = frp->fr_next; 3318 if (wfw) 3319 // Advance back for frames with one window with 'wfw' set. 3320 while (frame_fixed_width(frp)) 3321 frp = frp->fr_prev; 3322 } 3323 3324 extra_cols = width - topfrp->fr_width; 3325 if (extra_cols < 0) 3326 { 3327 // reduce frame width, rightmost frame first 3328 while (frp != NULL) 3329 { 3330 w = frame_minwidth(frp, NULL); 3331 if (frp->fr_width + extra_cols < w) 3332 { 3333 extra_cols += frp->fr_width - w; 3334 frame_new_width(frp, w, leftfirst, wfw); 3335 } 3336 else 3337 { 3338 frame_new_width(frp, frp->fr_width + extra_cols, 3339 leftfirst, wfw); 3340 break; 3341 } 3342 if (leftfirst) 3343 { 3344 do 3345 frp = frp->fr_next; 3346 while (wfw && frp != NULL && frame_fixed_width(frp)); 3347 } 3348 else 3349 { 3350 do 3351 frp = frp->fr_prev; 3352 while (wfw && frp != NULL && frame_fixed_width(frp)); 3353 } 3354 // Increase "width" if we could not reduce enough frames. 3355 if (frp == NULL) 3356 width -= extra_cols; 3357 } 3358 } 3359 else if (extra_cols > 0) 3360 { 3361 // increase width of rightmost frame 3362 frame_new_width(frp, frp->fr_width + extra_cols, leftfirst, wfw); 3363 } 3364 } 3365 topfrp->fr_width = width; 3366 } 3367 3368 /* 3369 * Add the vertical separator to windows at the right side of "frp". 3370 * Note: Does not check if there is room! 3371 */ 3372 static void 3373 frame_add_vsep(frame_T *frp) 3374 { 3375 win_T *wp; 3376 3377 if (frp->fr_layout == FR_LEAF) 3378 { 3379 wp = frp->fr_win; 3380 if (wp->w_vsep_width == 0) 3381 { 3382 if (wp->w_width > 0) // don't make it negative 3383 --wp->w_width; 3384 wp->w_vsep_width = 1; 3385 } 3386 } 3387 else if (frp->fr_layout == FR_COL) 3388 { 3389 // Handle all the frames in the column. 3390 FOR_ALL_FRAMES(frp, frp->fr_child) 3391 frame_add_vsep(frp); 3392 } 3393 else // frp->fr_layout == FR_ROW 3394 { 3395 // Only need to handle the last frame in the row. 3396 frp = frp->fr_child; 3397 while (frp->fr_next != NULL) 3398 frp = frp->fr_next; 3399 frame_add_vsep(frp); 3400 } 3401 } 3402 3403 /* 3404 * Set frame width from the window it contains. 3405 */ 3406 static void 3407 frame_fix_width(win_T *wp) 3408 { 3409 wp->w_frame->fr_width = wp->w_width + wp->w_vsep_width; 3410 } 3411 3412 /* 3413 * Set frame height from the window it contains. 3414 */ 3415 static void 3416 frame_fix_height(win_T *wp) 3417 { 3418 wp->w_frame->fr_height = VISIBLE_HEIGHT(wp) + wp->w_status_height; 3419 } 3420 3421 /* 3422 * Compute the minimal height for frame "topfrp". 3423 * Uses the 'winminheight' option. 3424 * When "next_curwin" isn't NULL, use p_wh for this window. 3425 * When "next_curwin" is NOWIN, don't use at least one line for the current 3426 * window. 3427 */ 3428 static int 3429 frame_minheight(frame_T *topfrp, win_T *next_curwin) 3430 { 3431 frame_T *frp; 3432 int m; 3433 int n; 3434 3435 if (topfrp->fr_win != NULL) 3436 { 3437 if (topfrp->fr_win == next_curwin) 3438 m = p_wh + topfrp->fr_win->w_status_height; 3439 else 3440 { 3441 // window: minimal height of the window plus status line 3442 m = p_wmh + topfrp->fr_win->w_status_height; 3443 if (topfrp->fr_win == curwin && next_curwin == NULL) 3444 { 3445 // Current window is minimal one line high and WinBar is 3446 // visible. 3447 if (p_wmh == 0) 3448 ++m; 3449 m += WINBAR_HEIGHT(curwin); 3450 } 3451 } 3452 } 3453 else if (topfrp->fr_layout == FR_ROW) 3454 { 3455 // get the minimal height from each frame in this row 3456 m = 0; 3457 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3458 { 3459 n = frame_minheight(frp, next_curwin); 3460 if (n > m) 3461 m = n; 3462 } 3463 } 3464 else 3465 { 3466 // Add up the minimal heights for all frames in this column. 3467 m = 0; 3468 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3469 m += frame_minheight(frp, next_curwin); 3470 } 3471 3472 return m; 3473 } 3474 3475 /* 3476 * Compute the minimal width for frame "topfrp". 3477 * When "next_curwin" isn't NULL, use p_wiw for this window. 3478 * When "next_curwin" is NOWIN, don't use at least one column for the current 3479 * window. 3480 */ 3481 static int 3482 frame_minwidth( 3483 frame_T *topfrp, 3484 win_T *next_curwin) // use p_wh and p_wiw for next_curwin 3485 { 3486 frame_T *frp; 3487 int m, n; 3488 3489 if (topfrp->fr_win != NULL) 3490 { 3491 if (topfrp->fr_win == next_curwin) 3492 m = p_wiw + topfrp->fr_win->w_vsep_width; 3493 else 3494 { 3495 // window: minimal width of the window plus separator column 3496 m = p_wmw + topfrp->fr_win->w_vsep_width; 3497 // Current window is minimal one column wide 3498 if (p_wmw == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3499 ++m; 3500 } 3501 } 3502 else if (topfrp->fr_layout == FR_COL) 3503 { 3504 // get the minimal width from each frame in this column 3505 m = 0; 3506 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3507 { 3508 n = frame_minwidth(frp, next_curwin); 3509 if (n > m) 3510 m = n; 3511 } 3512 } 3513 else 3514 { 3515 // Add up the minimal widths for all frames in this row. 3516 m = 0; 3517 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3518 m += frame_minwidth(frp, next_curwin); 3519 } 3520 3521 return m; 3522 } 3523 3524 3525 /* 3526 * Try to close all windows except current one. 3527 * Buffers in the other windows become hidden if 'hidden' is set, or '!' is 3528 * used and the buffer was modified. 3529 * 3530 * Used by ":bdel" and ":only". 3531 */ 3532 void 3533 close_others( 3534 int message, 3535 int forceit) // always hide all other windows 3536 { 3537 win_T *wp; 3538 win_T *nextwp; 3539 int r; 3540 3541 if (one_window()) 3542 { 3543 if (message && !autocmd_busy) 3544 msg(_(m_onlyone)); 3545 return; 3546 } 3547 3548 // Be very careful here: autocommands may change the window layout. 3549 for (wp = firstwin; win_valid(wp); wp = nextwp) 3550 { 3551 nextwp = wp->w_next; 3552 if (wp != curwin) // don't close current window 3553 { 3554 3555 // Check if it's allowed to abandon this window 3556 r = can_abandon(wp->w_buffer, forceit); 3557 if (!win_valid(wp)) // autocommands messed wp up 3558 { 3559 nextwp = firstwin; 3560 continue; 3561 } 3562 if (!r) 3563 { 3564 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 3565 if (message && (p_confirm || cmdmod.confirm) && p_write) 3566 { 3567 dialog_changed(wp->w_buffer, FALSE); 3568 if (!win_valid(wp)) // autocommands messed wp up 3569 { 3570 nextwp = firstwin; 3571 continue; 3572 } 3573 } 3574 if (bufIsChanged(wp->w_buffer)) 3575 #endif 3576 continue; 3577 } 3578 win_close(wp, !buf_hide(wp->w_buffer) 3579 && !bufIsChanged(wp->w_buffer)); 3580 } 3581 } 3582 3583 if (message && !ONE_WINDOW) 3584 emsg(_("E445: Other window contains changes")); 3585 } 3586 3587 static void 3588 win_init_empty(win_T *wp) 3589 { 3590 redraw_win_later(wp, NOT_VALID); 3591 wp->w_lines_valid = 0; 3592 wp->w_cursor.lnum = 1; 3593 wp->w_curswant = wp->w_cursor.col = 0; 3594 wp->w_cursor.coladd = 0; 3595 wp->w_pcmark.lnum = 1; // pcmark not cleared but set to line 1 3596 wp->w_pcmark.col = 0; 3597 wp->w_prev_pcmark.lnum = 0; 3598 wp->w_prev_pcmark.col = 0; 3599 wp->w_topline = 1; 3600 #ifdef FEAT_DIFF 3601 wp->w_topfill = 0; 3602 #endif 3603 wp->w_botline = 2; 3604 #if defined(FEAT_SYN_HL) || defined(FEAT_SPELL) 3605 wp->w_s = &wp->w_buffer->b_s; 3606 #endif 3607 } 3608 3609 /* 3610 * Init the current window "curwin". 3611 * Called when a new file is being edited. 3612 */ 3613 void 3614 curwin_init(void) 3615 { 3616 win_init_empty(curwin); 3617 } 3618 3619 /* 3620 * Allocate the first window and put an empty buffer in it. 3621 * Called from main(). 3622 * Return FAIL when something goes wrong (out of memory). 3623 */ 3624 int 3625 win_alloc_first(void) 3626 { 3627 if (win_alloc_firstwin(NULL) == FAIL) 3628 return FAIL; 3629 3630 first_tabpage = alloc_tabpage(); 3631 if (first_tabpage == NULL) 3632 return FAIL; 3633 first_tabpage->tp_topframe = topframe; 3634 curtab = first_tabpage; 3635 curtab->tp_firstwin = firstwin; 3636 curtab->tp_lastwin = lastwin; 3637 curtab->tp_curwin = curwin; 3638 3639 return OK; 3640 } 3641 3642 /* 3643 * Allocate and init a window that is not a regular window. 3644 * This can only be done after the first window is fully initialized, thus it 3645 * can't be in win_alloc_first(). 3646 */ 3647 win_T * 3648 win_alloc_popup_win(void) 3649 { 3650 win_T *wp; 3651 3652 wp = win_alloc(NULL, TRUE); 3653 if (wp != NULL) 3654 { 3655 // We need to initialize options with something, using the current 3656 // window makes most sense. 3657 win_init_some(wp, curwin); 3658 3659 RESET_BINDING(wp); 3660 new_frame(wp); 3661 } 3662 return wp; 3663 } 3664 3665 /* 3666 * Initialize window "wp" to display buffer "buf". 3667 */ 3668 void 3669 win_init_popup_win(win_T *wp, buf_T *buf) 3670 { 3671 wp->w_buffer = buf; 3672 ++buf->b_nwindows; 3673 win_init_empty(wp); // set cursor and topline to safe values 3674 3675 // Make sure w_localdir and globaldir are NULL to avoid a chdir() in 3676 // win_enter_ext(). 3677 VIM_CLEAR(wp->w_localdir); 3678 } 3679 3680 /* 3681 * Allocate the first window or the first window in a new tab page. 3682 * When "oldwin" is NULL create an empty buffer for it. 3683 * When "oldwin" is not NULL copy info from it to the new window. 3684 * Return FAIL when something goes wrong (out of memory). 3685 */ 3686 static int 3687 win_alloc_firstwin(win_T *oldwin) 3688 { 3689 curwin = win_alloc(NULL, FALSE); 3690 if (oldwin == NULL) 3691 { 3692 // Very first window, need to create an empty buffer for it and 3693 // initialize from scratch. 3694 curbuf = buflist_new(NULL, NULL, 1L, BLN_LISTED); 3695 if (curwin == NULL || curbuf == NULL) 3696 return FAIL; 3697 curwin->w_buffer = curbuf; 3698 #ifdef FEAT_SYN_HL 3699 curwin->w_s = &(curbuf->b_s); 3700 #endif 3701 curbuf->b_nwindows = 1; // there is one window 3702 curwin->w_alist = &global_alist; 3703 curwin_init(); // init current window 3704 } 3705 else 3706 { 3707 // First window in new tab page, initialize it from "oldwin". 3708 win_init(curwin, oldwin, 0); 3709 3710 // We don't want cursor- and scroll-binding in the first window. 3711 RESET_BINDING(curwin); 3712 } 3713 3714 new_frame(curwin); 3715 if (curwin->w_frame == NULL) 3716 return FAIL; 3717 topframe = curwin->w_frame; 3718 topframe->fr_width = Columns; 3719 topframe->fr_height = Rows - p_ch; 3720 3721 return OK; 3722 } 3723 3724 /* 3725 * Create a frame for window "wp". 3726 */ 3727 static void 3728 new_frame(win_T *wp) 3729 { 3730 frame_T *frp = ALLOC_CLEAR_ONE(frame_T); 3731 3732 wp->w_frame = frp; 3733 if (frp != NULL) 3734 { 3735 frp->fr_layout = FR_LEAF; 3736 frp->fr_win = wp; 3737 } 3738 } 3739 3740 /* 3741 * Initialize the window and frame size to the maximum. 3742 */ 3743 void 3744 win_init_size(void) 3745 { 3746 firstwin->w_height = ROWS_AVAIL; 3747 topframe->fr_height = ROWS_AVAIL; 3748 firstwin->w_width = Columns; 3749 topframe->fr_width = Columns; 3750 } 3751 3752 /* 3753 * Allocate a new tabpage_T and init the values. 3754 * Returns NULL when out of memory. 3755 */ 3756 static tabpage_T * 3757 alloc_tabpage(void) 3758 { 3759 tabpage_T *tp; 3760 # ifdef FEAT_GUI 3761 int i; 3762 # endif 3763 3764 3765 tp = ALLOC_CLEAR_ONE(tabpage_T); 3766 if (tp == NULL) 3767 return NULL; 3768 3769 # ifdef FEAT_EVAL 3770 // init t: variables 3771 tp->tp_vars = dict_alloc(); 3772 if (tp->tp_vars == NULL) 3773 { 3774 vim_free(tp); 3775 return NULL; 3776 } 3777 init_var_dict(tp->tp_vars, &tp->tp_winvar, VAR_SCOPE); 3778 # endif 3779 3780 # ifdef FEAT_GUI 3781 for (i = 0; i < 3; i++) 3782 tp->tp_prev_which_scrollbars[i] = -1; 3783 # endif 3784 # ifdef FEAT_DIFF 3785 tp->tp_diff_invalid = TRUE; 3786 # endif 3787 tp->tp_ch_used = p_ch; 3788 3789 return tp; 3790 } 3791 3792 void 3793 free_tabpage(tabpage_T *tp) 3794 { 3795 int idx; 3796 3797 # ifdef FEAT_DIFF 3798 diff_clear(tp); 3799 # endif 3800 # ifdef FEAT_PROP_POPUP 3801 while (tp->tp_first_popupwin != NULL) 3802 popup_close_tabpage(tp, tp->tp_first_popupwin->w_id, TRUE); 3803 #endif 3804 for (idx = 0; idx < SNAP_COUNT; ++idx) 3805 clear_snapshot(tp, idx); 3806 #ifdef FEAT_EVAL 3807 vars_clear(&tp->tp_vars->dv_hashtab); // free all t: variables 3808 hash_init(&tp->tp_vars->dv_hashtab); 3809 unref_var_dict(tp->tp_vars); 3810 #endif 3811 3812 vim_free(tp->tp_localdir); 3813 vim_free(tp->tp_prevdir); 3814 3815 #ifdef FEAT_PYTHON 3816 python_tabpage_free(tp); 3817 #endif 3818 3819 #ifdef FEAT_PYTHON3 3820 python3_tabpage_free(tp); 3821 #endif 3822 3823 vim_free(tp); 3824 } 3825 3826 /* 3827 * Create a new Tab page with one window. 3828 * It will edit the current buffer, like after ":split". 3829 * When "after" is 0 put it just after the current Tab page. 3830 * Otherwise put it just before tab page "after". 3831 * Return FAIL or OK. 3832 */ 3833 int 3834 win_new_tabpage(int after) 3835 { 3836 tabpage_T *tp = curtab; 3837 tabpage_T *newtp; 3838 int n; 3839 3840 newtp = alloc_tabpage(); 3841 if (newtp == NULL) 3842 return FAIL; 3843 3844 // Remember the current windows in this Tab page. 3845 if (leave_tabpage(curbuf, TRUE) == FAIL) 3846 { 3847 vim_free(newtp); 3848 return FAIL; 3849 } 3850 curtab = newtp; 3851 3852 newtp->tp_localdir = (tp->tp_localdir == NULL) 3853 ? NULL : vim_strsave(tp->tp_localdir); 3854 // Create a new empty window. 3855 if (win_alloc_firstwin(tp->tp_curwin) == OK) 3856 { 3857 // Make the new Tab page the new topframe. 3858 if (after == 1) 3859 { 3860 // New tab page becomes the first one. 3861 newtp->tp_next = first_tabpage; 3862 first_tabpage = newtp; 3863 } 3864 else 3865 { 3866 if (after > 0) 3867 { 3868 // Put new tab page before tab page "after". 3869 n = 2; 3870 for (tp = first_tabpage; tp->tp_next != NULL 3871 && n < after; tp = tp->tp_next) 3872 ++n; 3873 } 3874 newtp->tp_next = tp->tp_next; 3875 tp->tp_next = newtp; 3876 } 3877 newtp->tp_firstwin = newtp->tp_lastwin = newtp->tp_curwin = curwin; 3878 3879 win_init_size(); 3880 firstwin->w_winrow = tabline_height(); 3881 win_comp_scroll(curwin); 3882 3883 newtp->tp_topframe = topframe; 3884 last_status(FALSE); 3885 3886 #if defined(FEAT_GUI) 3887 // When 'guioptions' includes 'L' or 'R' may have to remove or add 3888 // scrollbars. Have to update them anyway. 3889 gui_may_update_scrollbars(); 3890 #endif 3891 #ifdef FEAT_JOB_CHANNEL 3892 entering_window(curwin); 3893 #endif 3894 3895 redraw_all_later(NOT_VALID); 3896 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 3897 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 3898 apply_autocmds(EVENT_TABNEW, NULL, NULL, FALSE, curbuf); 3899 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3900 return OK; 3901 } 3902 3903 // Failed, get back the previous Tab page 3904 enter_tabpage(curtab, curbuf, TRUE, TRUE); 3905 return FAIL; 3906 } 3907 3908 /* 3909 * Open a new tab page if ":tab cmd" was used. It will edit the same buffer, 3910 * like with ":split". 3911 * Returns OK if a new tab page was created, FAIL otherwise. 3912 */ 3913 static int 3914 may_open_tabpage(void) 3915 { 3916 int n = (cmdmod.tab == 0) ? postponed_split_tab : cmdmod.tab; 3917 3918 if (n != 0) 3919 { 3920 cmdmod.tab = 0; // reset it to avoid doing it twice 3921 postponed_split_tab = 0; 3922 return win_new_tabpage(n); 3923 } 3924 return FAIL; 3925 } 3926 3927 /* 3928 * Create up to "maxcount" tabpages with empty windows. 3929 * Returns the number of resulting tab pages. 3930 */ 3931 int 3932 make_tabpages(int maxcount) 3933 { 3934 int count = maxcount; 3935 int todo; 3936 3937 // Limit to 'tabpagemax' tabs. 3938 if (count > p_tpm) 3939 count = p_tpm; 3940 3941 /* 3942 * Don't execute autocommands while creating the tab pages. Must do that 3943 * when putting the buffers in the windows. 3944 */ 3945 block_autocmds(); 3946 3947 for (todo = count - 1; todo > 0; --todo) 3948 if (win_new_tabpage(0) == FAIL) 3949 break; 3950 3951 unblock_autocmds(); 3952 3953 // return actual number of tab pages 3954 return (count - todo); 3955 } 3956 3957 /* 3958 * Return TRUE when "tpc" points to a valid tab page. 3959 */ 3960 int 3961 valid_tabpage(tabpage_T *tpc) 3962 { 3963 tabpage_T *tp; 3964 3965 FOR_ALL_TABPAGES(tp) 3966 if (tp == tpc) 3967 return TRUE; 3968 return FALSE; 3969 } 3970 3971 /* 3972 * Return TRUE when "tpc" points to a valid tab page and at least one window is 3973 * valid. 3974 */ 3975 int 3976 valid_tabpage_win(tabpage_T *tpc) 3977 { 3978 tabpage_T *tp; 3979 win_T *wp; 3980 3981 FOR_ALL_TABPAGES(tp) 3982 { 3983 if (tp == tpc) 3984 { 3985 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 3986 { 3987 if (win_valid_any_tab(wp)) 3988 return TRUE; 3989 } 3990 return FALSE; 3991 } 3992 } 3993 // shouldn't happen 3994 return FALSE; 3995 } 3996 3997 /* 3998 * Close tabpage "tab", assuming it has no windows in it. 3999 * There must be another tabpage or this will crash. 4000 */ 4001 void 4002 close_tabpage(tabpage_T *tab) 4003 { 4004 tabpage_T *ptp; 4005 4006 if (tab == first_tabpage) 4007 { 4008 first_tabpage = tab->tp_next; 4009 ptp = first_tabpage; 4010 } 4011 else 4012 { 4013 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tab; 4014 ptp = ptp->tp_next) 4015 ; 4016 assert(ptp != NULL); 4017 ptp->tp_next = tab->tp_next; 4018 } 4019 4020 goto_tabpage_tp(ptp, FALSE, FALSE); 4021 free_tabpage(tab); 4022 } 4023 4024 /* 4025 * Find tab page "n" (first one is 1). Returns NULL when not found. 4026 */ 4027 tabpage_T * 4028 find_tabpage(int n) 4029 { 4030 tabpage_T *tp; 4031 int i = 1; 4032 4033 if (n == 0) 4034 return curtab; 4035 4036 for (tp = first_tabpage; tp != NULL && i != n; tp = tp->tp_next) 4037 ++i; 4038 return tp; 4039 } 4040 4041 /* 4042 * Get index of tab page "tp". First one has index 1. 4043 * When not found returns number of tab pages plus one. 4044 */ 4045 int 4046 tabpage_index(tabpage_T *ftp) 4047 { 4048 int i = 1; 4049 tabpage_T *tp; 4050 4051 for (tp = first_tabpage; tp != NULL && tp != ftp; tp = tp->tp_next) 4052 ++i; 4053 return i; 4054 } 4055 4056 /* 4057 * Prepare for leaving the current tab page. 4058 * When autocommands change "curtab" we don't leave the tab page and return 4059 * FAIL. 4060 * Careful: When OK is returned need to get a new tab page very very soon! 4061 */ 4062 static int 4063 leave_tabpage( 4064 buf_T *new_curbuf UNUSED, // what is going to be the new curbuf, 4065 // NULL if unknown 4066 int trigger_leave_autocmds UNUSED) 4067 { 4068 tabpage_T *tp = curtab; 4069 4070 #ifdef FEAT_JOB_CHANNEL 4071 leaving_window(curwin); 4072 #endif 4073 reset_VIsual_and_resel(); // stop Visual mode 4074 if (trigger_leave_autocmds) 4075 { 4076 if (new_curbuf != curbuf) 4077 { 4078 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4079 if (curtab != tp) 4080 return FAIL; 4081 } 4082 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4083 if (curtab != tp) 4084 return FAIL; 4085 apply_autocmds(EVENT_TABLEAVE, NULL, NULL, FALSE, curbuf); 4086 if (curtab != tp) 4087 return FAIL; 4088 } 4089 #if defined(FEAT_GUI) 4090 // Remove the scrollbars. They may be added back later. 4091 if (gui.in_use) 4092 gui_remove_scrollbars(); 4093 #endif 4094 tp->tp_curwin = curwin; 4095 tp->tp_prevwin = prevwin; 4096 tp->tp_firstwin = firstwin; 4097 tp->tp_lastwin = lastwin; 4098 tp->tp_old_Rows = Rows; 4099 tp->tp_old_Columns = Columns; 4100 firstwin = NULL; 4101 lastwin = NULL; 4102 return OK; 4103 } 4104 4105 /* 4106 * Start using tab page "tp". 4107 * Only to be used after leave_tabpage() or freeing the current tab page. 4108 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4109 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4110 */ 4111 static void 4112 enter_tabpage( 4113 tabpage_T *tp, 4114 buf_T *old_curbuf UNUSED, 4115 int trigger_enter_autocmds, 4116 int trigger_leave_autocmds) 4117 { 4118 int row; 4119 int old_off = tp->tp_firstwin->w_winrow; 4120 win_T *next_prevwin = tp->tp_prevwin; 4121 4122 curtab = tp; 4123 firstwin = tp->tp_firstwin; 4124 lastwin = tp->tp_lastwin; 4125 topframe = tp->tp_topframe; 4126 4127 // We would like doing the TabEnter event first, but we don't have a 4128 // valid current window yet, which may break some commands. 4129 // This triggers autocommands, thus may make "tp" invalid. 4130 win_enter_ext(tp->tp_curwin, FALSE, TRUE, FALSE, 4131 trigger_enter_autocmds, trigger_leave_autocmds); 4132 prevwin = next_prevwin; 4133 4134 last_status(FALSE); // status line may appear or disappear 4135 row = win_comp_pos(); // recompute w_winrow for all windows 4136 #ifdef FEAT_DIFF 4137 diff_need_scrollbind = TRUE; 4138 #endif 4139 4140 // The tabpage line may have appeared or disappeared, may need to resize 4141 // the frames for that. When the Vim window was resized need to update 4142 // frame sizes too. Use the stored value of p_ch, so that it can be 4143 // different for each tab page. 4144 if (p_ch != curtab->tp_ch_used) 4145 clear_cmdline = TRUE; 4146 p_ch = curtab->tp_ch_used; 4147 4148 // When cmdheight is changed in a tab page with '<C-w>-', cmdline_row is 4149 // changed but p_ch and tp_ch_used are not changed. Thus we also need to 4150 // check cmdline_row. 4151 if ((row < cmdline_row) && (cmdline_row <= Rows - p_ch)) 4152 clear_cmdline = TRUE; 4153 4154 if (curtab->tp_old_Rows != Rows || (old_off != firstwin->w_winrow 4155 #ifdef FEAT_GUI_TABLINE 4156 && !gui_use_tabline() 4157 #endif 4158 )) 4159 shell_new_rows(); 4160 if (curtab->tp_old_Columns != Columns && starting == 0) 4161 shell_new_columns(); // update window widths 4162 4163 #if defined(FEAT_GUI) 4164 // When 'guioptions' includes 'L' or 'R' may have to remove or add 4165 // scrollbars. Have to update them anyway. 4166 gui_may_update_scrollbars(); 4167 #endif 4168 4169 // Apply autocommands after updating the display, when 'rows' and 4170 // 'columns' have been set correctly. 4171 if (trigger_enter_autocmds) 4172 { 4173 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 4174 if (old_curbuf != curbuf) 4175 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4176 } 4177 4178 redraw_all_later(NOT_VALID); 4179 } 4180 4181 /* 4182 * Go to tab page "n". For ":tab N" and "Ngt". 4183 * When "n" is 9999 go to the last tab page. 4184 */ 4185 void 4186 goto_tabpage(int n) 4187 { 4188 tabpage_T *tp = NULL; // shut up compiler 4189 tabpage_T *ttp; 4190 int i; 4191 4192 if (text_locked()) 4193 { 4194 // Not allowed when editing the command line. 4195 text_locked_msg(); 4196 return; 4197 } 4198 4199 // If there is only one it can't work. 4200 if (first_tabpage->tp_next == NULL) 4201 { 4202 if (n > 1) 4203 beep_flush(); 4204 return; 4205 } 4206 4207 if (n == 0) 4208 { 4209 // No count, go to next tab page, wrap around end. 4210 if (curtab->tp_next == NULL) 4211 tp = first_tabpage; 4212 else 4213 tp = curtab->tp_next; 4214 } 4215 else if (n < 0) 4216 { 4217 // "gT": go to previous tab page, wrap around end. "N gT" repeats 4218 // this N times. 4219 ttp = curtab; 4220 for (i = n; i < 0; ++i) 4221 { 4222 for (tp = first_tabpage; tp->tp_next != ttp && tp->tp_next != NULL; 4223 tp = tp->tp_next) 4224 ; 4225 ttp = tp; 4226 } 4227 } 4228 else if (n == 9999) 4229 { 4230 // Go to last tab page. 4231 for (tp = first_tabpage; tp->tp_next != NULL; tp = tp->tp_next) 4232 ; 4233 } 4234 else 4235 { 4236 // Go to tab page "n". 4237 tp = find_tabpage(n); 4238 if (tp == NULL) 4239 { 4240 beep_flush(); 4241 return; 4242 } 4243 } 4244 4245 goto_tabpage_tp(tp, TRUE, TRUE); 4246 4247 #ifdef FEAT_GUI_TABLINE 4248 if (gui_use_tabline()) 4249 gui_mch_set_curtab(tabpage_index(curtab)); 4250 #endif 4251 } 4252 4253 /* 4254 * Go to tabpage "tp". 4255 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4256 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4257 * Note: doesn't update the GUI tab. 4258 */ 4259 void 4260 goto_tabpage_tp( 4261 tabpage_T *tp, 4262 int trigger_enter_autocmds, 4263 int trigger_leave_autocmds) 4264 { 4265 // Don't repeat a message in another tab page. 4266 set_keep_msg(NULL, 0); 4267 4268 if (tp != curtab && leave_tabpage(tp->tp_curwin->w_buffer, 4269 trigger_leave_autocmds) == OK) 4270 { 4271 if (valid_tabpage(tp)) 4272 enter_tabpage(tp, curbuf, trigger_enter_autocmds, 4273 trigger_leave_autocmds); 4274 else 4275 enter_tabpage(curtab, curbuf, trigger_enter_autocmds, 4276 trigger_leave_autocmds); 4277 } 4278 } 4279 4280 /* 4281 * Enter window "wp" in tab page "tp". 4282 * Also updates the GUI tab. 4283 */ 4284 void 4285 goto_tabpage_win(tabpage_T *tp, win_T *wp) 4286 { 4287 goto_tabpage_tp(tp, TRUE, TRUE); 4288 if (curtab == tp && win_valid(wp)) 4289 { 4290 win_enter(wp, TRUE); 4291 # ifdef FEAT_GUI_TABLINE 4292 if (gui_use_tabline()) 4293 gui_mch_set_curtab(tabpage_index(curtab)); 4294 # endif 4295 } 4296 } 4297 4298 /* 4299 * Move the current tab page to after tab page "nr". 4300 */ 4301 void 4302 tabpage_move(int nr) 4303 { 4304 int n = 1; 4305 tabpage_T *tp, *tp_dst; 4306 4307 if (first_tabpage->tp_next == NULL) 4308 return; 4309 4310 for (tp = first_tabpage; tp->tp_next != NULL && n < nr; tp = tp->tp_next) 4311 ++n; 4312 4313 if (tp == curtab || (nr > 0 && tp->tp_next != NULL 4314 && tp->tp_next == curtab)) 4315 return; 4316 4317 tp_dst = tp; 4318 4319 // Remove the current tab page from the list of tab pages. 4320 if (curtab == first_tabpage) 4321 first_tabpage = curtab->tp_next; 4322 else 4323 { 4324 FOR_ALL_TABPAGES(tp) 4325 if (tp->tp_next == curtab) 4326 break; 4327 if (tp == NULL) // "cannot happen" 4328 return; 4329 tp->tp_next = curtab->tp_next; 4330 } 4331 4332 // Re-insert it at the specified position. 4333 if (nr <= 0) 4334 { 4335 curtab->tp_next = first_tabpage; 4336 first_tabpage = curtab; 4337 } 4338 else 4339 { 4340 curtab->tp_next = tp_dst->tp_next; 4341 tp_dst->tp_next = curtab; 4342 } 4343 4344 // Need to redraw the tabline. Tab page contents doesn't change. 4345 redraw_tabline = TRUE; 4346 } 4347 4348 4349 /* 4350 * Go to another window. 4351 * When jumping to another buffer, stop Visual mode. Do this before 4352 * changing windows so we can yank the selection into the '*' register. 4353 * When jumping to another window on the same buffer, adjust its cursor 4354 * position to keep the same Visual area. 4355 */ 4356 void 4357 win_goto(win_T *wp) 4358 { 4359 #ifdef FEAT_CONCEAL 4360 win_T *owp = curwin; 4361 #endif 4362 4363 #ifdef FEAT_PROP_POPUP 4364 if (ERROR_IF_ANY_POPUP_WINDOW) 4365 return; 4366 if (popup_is_popup(wp)) 4367 { 4368 emsg(_("E366: Not allowed to enter a popup window")); 4369 return; 4370 } 4371 #endif 4372 if (text_and_win_locked()) 4373 { 4374 beep_flush(); 4375 text_locked_msg(); 4376 return; 4377 } 4378 if (curbuf_locked()) 4379 return; 4380 4381 if (wp->w_buffer != curbuf) 4382 reset_VIsual_and_resel(); 4383 else if (VIsual_active) 4384 wp->w_cursor = curwin->w_cursor; 4385 4386 #ifdef FEAT_GUI 4387 need_mouse_correct = TRUE; 4388 #endif 4389 win_enter(wp, TRUE); 4390 4391 #ifdef FEAT_CONCEAL 4392 // Conceal cursor line in previous window, unconceal in current window. 4393 if (win_valid(owp) && owp->w_p_cole > 0 && !msg_scrolled) 4394 redrawWinline(owp, owp->w_cursor.lnum); 4395 if (curwin->w_p_cole > 0 && !msg_scrolled) 4396 need_cursor_line_redraw = TRUE; 4397 #endif 4398 } 4399 4400 #if defined(FEAT_PERL) || defined(PROTO) 4401 /* 4402 * Find window number "winnr" (counting top to bottom). 4403 */ 4404 win_T * 4405 win_find_nr(int winnr) 4406 { 4407 win_T *wp; 4408 4409 FOR_ALL_WINDOWS(wp) 4410 if (--winnr == 0) 4411 break; 4412 return wp; 4413 } 4414 #endif 4415 4416 #if ((defined(FEAT_PYTHON) || defined(FEAT_PYTHON3))) || defined(PROTO) 4417 /* 4418 * Find the tabpage for window "win". 4419 */ 4420 tabpage_T * 4421 win_find_tabpage(win_T *win) 4422 { 4423 win_T *wp; 4424 tabpage_T *tp; 4425 4426 FOR_ALL_TAB_WINDOWS(tp, wp) 4427 if (wp == win) 4428 return tp; 4429 return NULL; 4430 } 4431 #endif 4432 4433 /* 4434 * Get the above or below neighbor window of the specified window. 4435 * up - TRUE for the above neighbor 4436 * count - nth neighbor window 4437 * Returns the specified window if the neighbor is not found. 4438 */ 4439 win_T * 4440 win_vert_neighbor(tabpage_T *tp, win_T *wp, int up, long count) 4441 { 4442 frame_T *fr; 4443 frame_T *nfr; 4444 frame_T *foundfr; 4445 4446 #ifdef FEAT_PROP_POPUP 4447 if (popup_is_popup(wp)) 4448 // popups don't have neighbors. 4449 return NULL; 4450 #endif 4451 foundfr = wp->w_frame; 4452 while (count--) 4453 { 4454 /* 4455 * First go upwards in the tree of frames until we find a upwards or 4456 * downwards neighbor. 4457 */ 4458 fr = foundfr; 4459 for (;;) 4460 { 4461 if (fr == tp->tp_topframe) 4462 goto end; 4463 if (up) 4464 nfr = fr->fr_prev; 4465 else 4466 nfr = fr->fr_next; 4467 if (fr->fr_parent->fr_layout == FR_COL && nfr != NULL) 4468 break; 4469 fr = fr->fr_parent; 4470 } 4471 4472 /* 4473 * Now go downwards to find the bottom or top frame in it. 4474 */ 4475 for (;;) 4476 { 4477 if (nfr->fr_layout == FR_LEAF) 4478 { 4479 foundfr = nfr; 4480 break; 4481 } 4482 fr = nfr->fr_child; 4483 if (nfr->fr_layout == FR_ROW) 4484 { 4485 // Find the frame at the cursor row. 4486 while (fr->fr_next != NULL 4487 && frame2win(fr)->w_wincol + fr->fr_width 4488 <= wp->w_wincol + wp->w_wcol) 4489 fr = fr->fr_next; 4490 } 4491 if (nfr->fr_layout == FR_COL && up) 4492 while (fr->fr_next != NULL) 4493 fr = fr->fr_next; 4494 nfr = fr; 4495 } 4496 } 4497 end: 4498 return foundfr != NULL ? foundfr->fr_win : NULL; 4499 } 4500 4501 /* 4502 * Move to window above or below "count" times. 4503 */ 4504 static void 4505 win_goto_ver( 4506 int up, // TRUE to go to win above 4507 long count) 4508 { 4509 win_T *win; 4510 4511 #ifdef FEAT_PROP_POPUP 4512 if (ERROR_IF_TERM_POPUP_WINDOW) 4513 return; 4514 #endif 4515 win = win_vert_neighbor(curtab, curwin, up, count); 4516 if (win != NULL) 4517 win_goto(win); 4518 } 4519 4520 /* 4521 * Get the left or right neighbor window of the specified window. 4522 * left - TRUE for the left neighbor 4523 * count - nth neighbor window 4524 * Returns the specified window if the neighbor is not found. 4525 */ 4526 win_T * 4527 win_horz_neighbor(tabpage_T *tp, win_T *wp, int left, long count) 4528 { 4529 frame_T *fr; 4530 frame_T *nfr; 4531 frame_T *foundfr; 4532 4533 #ifdef FEAT_PROP_POPUP 4534 if (popup_is_popup(wp)) 4535 // popups don't have neighbors. 4536 return NULL; 4537 #endif 4538 foundfr = wp->w_frame; 4539 while (count--) 4540 { 4541 /* 4542 * First go upwards in the tree of frames until we find a left or 4543 * right neighbor. 4544 */ 4545 fr = foundfr; 4546 for (;;) 4547 { 4548 if (fr == tp->tp_topframe) 4549 goto end; 4550 if (left) 4551 nfr = fr->fr_prev; 4552 else 4553 nfr = fr->fr_next; 4554 if (fr->fr_parent->fr_layout == FR_ROW && nfr != NULL) 4555 break; 4556 fr = fr->fr_parent; 4557 } 4558 4559 /* 4560 * Now go downwards to find the leftmost or rightmost frame in it. 4561 */ 4562 for (;;) 4563 { 4564 if (nfr->fr_layout == FR_LEAF) 4565 { 4566 foundfr = nfr; 4567 break; 4568 } 4569 fr = nfr->fr_child; 4570 if (nfr->fr_layout == FR_COL) 4571 { 4572 // Find the frame at the cursor row. 4573 while (fr->fr_next != NULL 4574 && frame2win(fr)->w_winrow + fr->fr_height 4575 <= wp->w_winrow + wp->w_wrow) 4576 fr = fr->fr_next; 4577 } 4578 if (nfr->fr_layout == FR_ROW && left) 4579 while (fr->fr_next != NULL) 4580 fr = fr->fr_next; 4581 nfr = fr; 4582 } 4583 } 4584 end: 4585 return foundfr != NULL ? foundfr->fr_win : NULL; 4586 } 4587 4588 /* 4589 * Move to left or right window. 4590 */ 4591 static void 4592 win_goto_hor( 4593 int left, // TRUE to go to left win 4594 long count) 4595 { 4596 win_T *win; 4597 4598 #ifdef FEAT_PROP_POPUP 4599 if (ERROR_IF_TERM_POPUP_WINDOW) 4600 return; 4601 #endif 4602 win = win_horz_neighbor(curtab, curwin, left, count); 4603 if (win != NULL) 4604 win_goto(win); 4605 } 4606 4607 /* 4608 * Make window "wp" the current window. 4609 */ 4610 void 4611 win_enter(win_T *wp, int undo_sync) 4612 { 4613 win_enter_ext(wp, undo_sync, FALSE, FALSE, TRUE, TRUE); 4614 } 4615 4616 /* 4617 * Make window wp the current window. 4618 * Can be called with "curwin_invalid" TRUE, which means that curwin has just 4619 * been closed and isn't valid. 4620 */ 4621 static void 4622 win_enter_ext( 4623 win_T *wp, 4624 int undo_sync, 4625 int curwin_invalid, 4626 int trigger_new_autocmds, 4627 int trigger_enter_autocmds, 4628 int trigger_leave_autocmds) 4629 { 4630 int other_buffer = FALSE; 4631 4632 if (wp == curwin && !curwin_invalid) // nothing to do 4633 return; 4634 4635 #ifdef FEAT_JOB_CHANNEL 4636 if (!curwin_invalid) 4637 leaving_window(curwin); 4638 #endif 4639 4640 if (!curwin_invalid && trigger_leave_autocmds) 4641 { 4642 /* 4643 * Be careful: If autocommands delete the window, return now. 4644 */ 4645 if (wp->w_buffer != curbuf) 4646 { 4647 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4648 other_buffer = TRUE; 4649 if (!win_valid(wp)) 4650 return; 4651 } 4652 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4653 if (!win_valid(wp)) 4654 return; 4655 #ifdef FEAT_EVAL 4656 // autocmds may abort script processing 4657 if (aborting()) 4658 return; 4659 #endif 4660 } 4661 4662 // sync undo before leaving the current buffer 4663 if (undo_sync && curbuf != wp->w_buffer) 4664 u_sync(FALSE); 4665 4666 // Might need to scroll the old window before switching, e.g., when the 4667 // cursor was moved. 4668 update_topline(); 4669 4670 // may have to copy the buffer options when 'cpo' contains 'S' 4671 if (wp->w_buffer != curbuf) 4672 buf_copy_options(wp->w_buffer, BCO_ENTER | BCO_NOHELP); 4673 if (!curwin_invalid) 4674 { 4675 prevwin = curwin; // remember for CTRL-W p 4676 curwin->w_redr_status = TRUE; 4677 } 4678 curwin = wp; 4679 curbuf = wp->w_buffer; 4680 check_cursor(); 4681 if (!virtual_active()) 4682 curwin->w_cursor.coladd = 0; 4683 changed_line_abv_curs(); // assume cursor position needs updating 4684 4685 if (curwin->w_localdir != NULL || curtab->tp_localdir != NULL) 4686 { 4687 char_u *dirname; 4688 4689 // Window or tab has a local directory: Save current directory as 4690 // global directory (unless that was done already) and change to the 4691 // local directory. 4692 if (globaldir == NULL) 4693 { 4694 char_u cwd[MAXPATHL]; 4695 4696 if (mch_dirname(cwd, MAXPATHL) == OK) 4697 globaldir = vim_strsave(cwd); 4698 } 4699 if (curwin->w_localdir != NULL) 4700 dirname = curwin->w_localdir; 4701 else 4702 dirname = curtab->tp_localdir; 4703 4704 if (mch_chdir((char *)dirname) == 0) 4705 shorten_fnames(TRUE); 4706 } 4707 else if (globaldir != NULL) 4708 { 4709 // Window doesn't have a local directory and we are not in the global 4710 // directory: Change to the global directory. 4711 vim_ignored = mch_chdir((char *)globaldir); 4712 VIM_CLEAR(globaldir); 4713 shorten_fnames(TRUE); 4714 } 4715 4716 #ifdef FEAT_JOB_CHANNEL 4717 entering_window(curwin); 4718 #endif 4719 // Careful: autocommands may close the window and make "wp" invalid 4720 if (trigger_new_autocmds) 4721 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 4722 if (trigger_enter_autocmds) 4723 { 4724 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 4725 if (other_buffer) 4726 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4727 } 4728 4729 #ifdef FEAT_TITLE 4730 maketitle(); 4731 #endif 4732 curwin->w_redr_status = TRUE; 4733 #ifdef FEAT_TERMINAL 4734 if (bt_terminal(curwin->w_buffer)) 4735 // terminal is likely in another mode 4736 redraw_mode = TRUE; 4737 #endif 4738 redraw_tabline = TRUE; 4739 if (restart_edit) 4740 redraw_later(VALID); // causes status line redraw 4741 4742 // set window height to desired minimal value 4743 if (curwin->w_height < p_wh && !curwin->w_p_wfh 4744 #ifdef FEAT_PROP_POPUP 4745 && !popup_is_popup(curwin) 4746 #endif 4747 ) 4748 win_setheight((int)p_wh); 4749 else if (curwin->w_height == 0) 4750 win_setheight(1); 4751 4752 // set window width to desired minimal value 4753 if (curwin->w_width < p_wiw && !curwin->w_p_wfw) 4754 win_setwidth((int)p_wiw); 4755 4756 setmouse(); // in case jumped to/from help buffer 4757 4758 // Change directories when the 'acd' option is set. 4759 DO_AUTOCHDIR; 4760 } 4761 4762 4763 /* 4764 * Jump to the first open window that contains buffer "buf", if one exists. 4765 * Returns a pointer to the window found, otherwise NULL. 4766 */ 4767 win_T * 4768 buf_jump_open_win(buf_T *buf) 4769 { 4770 win_T *wp = NULL; 4771 4772 if (curwin->w_buffer == buf) 4773 wp = curwin; 4774 else 4775 FOR_ALL_WINDOWS(wp) 4776 if (wp->w_buffer == buf) 4777 break; 4778 if (wp != NULL) 4779 win_enter(wp, FALSE); 4780 return wp; 4781 } 4782 4783 /* 4784 * Jump to the first open window in any tab page that contains buffer "buf", 4785 * if one exists. 4786 * Returns a pointer to the window found, otherwise NULL. 4787 */ 4788 win_T * 4789 buf_jump_open_tab(buf_T *buf) 4790 { 4791 win_T *wp = buf_jump_open_win(buf); 4792 tabpage_T *tp; 4793 4794 if (wp != NULL) 4795 return wp; 4796 4797 FOR_ALL_TABPAGES(tp) 4798 if (tp != curtab) 4799 { 4800 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 4801 if (wp->w_buffer == buf) 4802 break; 4803 if (wp != NULL) 4804 { 4805 goto_tabpage_win(tp, wp); 4806 if (curwin != wp) 4807 wp = NULL; // something went wrong 4808 break; 4809 } 4810 } 4811 return wp; 4812 } 4813 4814 static int last_win_id = LOWEST_WIN_ID - 1; 4815 4816 /* 4817 * Allocate a window structure and link it in the window list when "hidden" is 4818 * FALSE. 4819 */ 4820 static win_T * 4821 win_alloc(win_T *after UNUSED, int hidden UNUSED) 4822 { 4823 win_T *new_wp; 4824 4825 /* 4826 * allocate window structure and linesizes arrays 4827 */ 4828 new_wp = ALLOC_CLEAR_ONE(win_T); 4829 if (new_wp == NULL) 4830 return NULL; 4831 4832 if (win_alloc_lines(new_wp) == FAIL) 4833 { 4834 vim_free(new_wp); 4835 return NULL; 4836 } 4837 4838 new_wp->w_id = ++last_win_id; 4839 4840 #ifdef FEAT_EVAL 4841 // init w: variables 4842 new_wp->w_vars = dict_alloc(); 4843 if (new_wp->w_vars == NULL) 4844 { 4845 win_free_lsize(new_wp); 4846 vim_free(new_wp); 4847 return NULL; 4848 } 4849 init_var_dict(new_wp->w_vars, &new_wp->w_winvar, VAR_SCOPE); 4850 #endif 4851 4852 // Don't execute autocommands while the window is not properly 4853 // initialized yet. gui_create_scrollbar() may trigger a FocusGained 4854 // event. 4855 block_autocmds(); 4856 4857 /* 4858 * link the window in the window list 4859 */ 4860 if (!hidden) 4861 win_append(after, new_wp); 4862 new_wp->w_wincol = 0; 4863 new_wp->w_width = Columns; 4864 4865 // position the display and the cursor at the top of the file. 4866 new_wp->w_topline = 1; 4867 #ifdef FEAT_DIFF 4868 new_wp->w_topfill = 0; 4869 #endif 4870 new_wp->w_botline = 2; 4871 new_wp->w_cursor.lnum = 1; 4872 new_wp->w_scbind_pos = 1; 4873 4874 // use global option value for global-local options 4875 new_wp->w_p_so = -1; 4876 new_wp->w_p_siso = -1; 4877 4878 // We won't calculate w_fraction until resizing the window 4879 new_wp->w_fraction = 0; 4880 new_wp->w_prev_fraction_row = -1; 4881 4882 #ifdef FEAT_GUI 4883 if (gui.in_use) 4884 { 4885 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_LEFT], 4886 SBAR_LEFT, new_wp); 4887 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_RIGHT], 4888 SBAR_RIGHT, new_wp); 4889 } 4890 #endif 4891 #ifdef FEAT_FOLDING 4892 foldInitWin(new_wp); 4893 #endif 4894 unblock_autocmds(); 4895 #ifdef FEAT_SEARCH_EXTRA 4896 new_wp->w_match_head = NULL; 4897 new_wp->w_next_match_id = 4; 4898 #endif 4899 return new_wp; 4900 } 4901 4902 /* 4903 * Remove window 'wp' from the window list and free the structure. 4904 */ 4905 static void 4906 win_free( 4907 win_T *wp, 4908 tabpage_T *tp) // tab page "win" is in, NULL for current 4909 { 4910 int i; 4911 buf_T *buf; 4912 wininfo_T *wip; 4913 4914 #ifdef FEAT_FOLDING 4915 clearFolding(wp); 4916 #endif 4917 4918 // reduce the reference count to the argument list. 4919 alist_unlink(wp->w_alist); 4920 4921 // Don't execute autocommands while the window is halfway being deleted. 4922 // gui_mch_destroy_scrollbar() may trigger a FocusGained event. 4923 block_autocmds(); 4924 4925 #ifdef FEAT_LUA 4926 lua_window_free(wp); 4927 #endif 4928 4929 #ifdef FEAT_MZSCHEME 4930 mzscheme_window_free(wp); 4931 #endif 4932 4933 #ifdef FEAT_PERL 4934 perl_win_free(wp); 4935 #endif 4936 4937 #ifdef FEAT_PYTHON 4938 python_window_free(wp); 4939 #endif 4940 4941 #ifdef FEAT_PYTHON3 4942 python3_window_free(wp); 4943 #endif 4944 4945 #ifdef FEAT_TCL 4946 tcl_window_free(wp); 4947 #endif 4948 4949 #ifdef FEAT_RUBY 4950 ruby_window_free(wp); 4951 #endif 4952 4953 clear_winopt(&wp->w_onebuf_opt); 4954 clear_winopt(&wp->w_allbuf_opt); 4955 4956 #ifdef FEAT_EVAL 4957 vars_clear(&wp->w_vars->dv_hashtab); // free all w: variables 4958 hash_init(&wp->w_vars->dv_hashtab); 4959 unref_var_dict(wp->w_vars); 4960 #endif 4961 4962 { 4963 tabpage_T *ttp; 4964 4965 if (prevwin == wp) 4966 prevwin = NULL; 4967 FOR_ALL_TABPAGES(ttp) 4968 if (ttp->tp_prevwin == wp) 4969 ttp->tp_prevwin = NULL; 4970 } 4971 win_free_lsize(wp); 4972 4973 for (i = 0; i < wp->w_tagstacklen; ++i) 4974 { 4975 vim_free(wp->w_tagstack[i].tagname); 4976 vim_free(wp->w_tagstack[i].user_data); 4977 } 4978 vim_free(wp->w_localdir); 4979 vim_free(wp->w_prevdir); 4980 4981 // Remove the window from the b_wininfo lists, it may happen that the 4982 // freed memory is re-used for another window. 4983 FOR_ALL_BUFFERS(buf) 4984 FOR_ALL_BUF_WININFO(buf, wip) 4985 if (wip->wi_win == wp) 4986 wip->wi_win = NULL; 4987 4988 #ifdef FEAT_SEARCH_EXTRA 4989 clear_matches(wp); 4990 #endif 4991 4992 #ifdef FEAT_JUMPLIST 4993 free_jumplist(wp); 4994 #endif 4995 4996 #ifdef FEAT_QUICKFIX 4997 qf_free_all(wp); 4998 #endif 4999 5000 #ifdef FEAT_GUI 5001 if (gui.in_use) 5002 { 5003 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_LEFT]); 5004 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_RIGHT]); 5005 } 5006 #endif // FEAT_GUI 5007 5008 #ifdef FEAT_MENU 5009 remove_winbar(wp); 5010 #endif 5011 #ifdef FEAT_PROP_POPUP 5012 free_callback(&wp->w_close_cb); 5013 free_callback(&wp->w_filter_cb); 5014 for (i = 0; i < 4; ++i) 5015 VIM_CLEAR(wp->w_border_highlight[i]); 5016 vim_free(wp->w_scrollbar_highlight); 5017 vim_free(wp->w_thumb_highlight); 5018 vim_free(wp->w_popup_title); 5019 list_unref(wp->w_popup_mask); 5020 vim_free(wp->w_popup_mask_cells); 5021 #endif 5022 5023 #ifdef FEAT_SYN_HL 5024 vim_free(wp->w_p_cc_cols); 5025 #endif 5026 5027 if (win_valid_any_tab(wp)) 5028 win_remove(wp, tp); 5029 if (autocmd_busy) 5030 { 5031 wp->w_next = au_pending_free_win; 5032 au_pending_free_win = wp; 5033 } 5034 else 5035 vim_free(wp); 5036 5037 unblock_autocmds(); 5038 } 5039 5040 /* 5041 * Return TRUE if "wp" is not in the list of windows: the autocmd window or a 5042 * popup window. 5043 */ 5044 static int 5045 win_unlisted(win_T *wp) 5046 { 5047 return wp == aucmd_win || WIN_IS_POPUP(wp); 5048 } 5049 5050 #if defined(FEAT_PROP_POPUP) || defined(PROTO) 5051 /* 5052 * Free a popup window. This does not take the window out of the window list 5053 * and assumes there is only one toplevel frame, no split. 5054 */ 5055 void 5056 win_free_popup(win_T *win) 5057 { 5058 if (bt_popup(win->w_buffer)) 5059 win_close_buffer(win, DOBUF_WIPE_REUSE, FALSE); 5060 else 5061 close_buffer(win, win->w_buffer, 0, FALSE, FALSE); 5062 # if defined(FEAT_TIMERS) 5063 if (win->w_popup_timer != NULL) 5064 stop_timer(win->w_popup_timer); 5065 # endif 5066 vim_free(win->w_frame); 5067 win_free(win, NULL); 5068 } 5069 #endif 5070 5071 /* 5072 * Append window "wp" in the window list after window "after". 5073 */ 5074 static void 5075 win_append(win_T *after, win_T *wp) 5076 { 5077 win_T *before; 5078 5079 if (after == NULL) // after NULL is in front of the first 5080 before = firstwin; 5081 else 5082 before = after->w_next; 5083 5084 wp->w_next = before; 5085 wp->w_prev = after; 5086 if (after == NULL) 5087 firstwin = wp; 5088 else 5089 after->w_next = wp; 5090 if (before == NULL) 5091 lastwin = wp; 5092 else 5093 before->w_prev = wp; 5094 } 5095 5096 /* 5097 * Remove a window from the window list. 5098 */ 5099 void 5100 win_remove( 5101 win_T *wp, 5102 tabpage_T *tp) // tab page "win" is in, NULL for current 5103 { 5104 if (wp->w_prev != NULL) 5105 wp->w_prev->w_next = wp->w_next; 5106 else if (tp == NULL) 5107 firstwin = curtab->tp_firstwin = wp->w_next; 5108 else 5109 tp->tp_firstwin = wp->w_next; 5110 5111 if (wp->w_next != NULL) 5112 wp->w_next->w_prev = wp->w_prev; 5113 else if (tp == NULL) 5114 lastwin = curtab->tp_lastwin = wp->w_prev; 5115 else 5116 tp->tp_lastwin = wp->w_prev; 5117 } 5118 5119 /* 5120 * Append frame "frp" in a frame list after frame "after". 5121 */ 5122 static void 5123 frame_append(frame_T *after, frame_T *frp) 5124 { 5125 frp->fr_next = after->fr_next; 5126 after->fr_next = frp; 5127 if (frp->fr_next != NULL) 5128 frp->fr_next->fr_prev = frp; 5129 frp->fr_prev = after; 5130 } 5131 5132 /* 5133 * Insert frame "frp" in a frame list before frame "before". 5134 */ 5135 static void 5136 frame_insert(frame_T *before, frame_T *frp) 5137 { 5138 frp->fr_next = before; 5139 frp->fr_prev = before->fr_prev; 5140 before->fr_prev = frp; 5141 if (frp->fr_prev != NULL) 5142 frp->fr_prev->fr_next = frp; 5143 else 5144 frp->fr_parent->fr_child = frp; 5145 } 5146 5147 /* 5148 * Remove a frame from a frame list. 5149 */ 5150 static void 5151 frame_remove(frame_T *frp) 5152 { 5153 if (frp->fr_prev != NULL) 5154 frp->fr_prev->fr_next = frp->fr_next; 5155 else 5156 { 5157 frp->fr_parent->fr_child = frp->fr_next; 5158 // special case: topframe->fr_child == frp 5159 if (topframe->fr_child == frp) 5160 topframe->fr_child = frp->fr_next; 5161 } 5162 if (frp->fr_next != NULL) 5163 frp->fr_next->fr_prev = frp->fr_prev; 5164 } 5165 5166 /* 5167 * Allocate w_lines[] for window "wp". 5168 * Return FAIL for failure, OK for success. 5169 */ 5170 int 5171 win_alloc_lines(win_T *wp) 5172 { 5173 wp->w_lines_valid = 0; 5174 wp->w_lines = ALLOC_CLEAR_MULT(wline_T, Rows ); 5175 if (wp->w_lines == NULL) 5176 return FAIL; 5177 return OK; 5178 } 5179 5180 /* 5181 * free lsize arrays for a window 5182 */ 5183 void 5184 win_free_lsize(win_T *wp) 5185 { 5186 // TODO: why would wp be NULL here? 5187 if (wp != NULL) 5188 VIM_CLEAR(wp->w_lines); 5189 } 5190 5191 /* 5192 * Called from win_new_shellsize() after Rows changed. 5193 * This only does the current tab page, others must be done when made active. 5194 */ 5195 void 5196 shell_new_rows(void) 5197 { 5198 int h = (int)ROWS_AVAIL; 5199 5200 if (firstwin == NULL) // not initialized yet 5201 return; 5202 if (h < frame_minheight(topframe, NULL)) 5203 h = frame_minheight(topframe, NULL); 5204 5205 // First try setting the heights of windows with 'winfixheight'. If 5206 // that doesn't result in the right height, forget about that option. 5207 frame_new_height(topframe, h, FALSE, TRUE); 5208 if (!frame_check_height(topframe, h)) 5209 frame_new_height(topframe, h, FALSE, FALSE); 5210 5211 (void)win_comp_pos(); // recompute w_winrow and w_wincol 5212 compute_cmdrow(); 5213 curtab->tp_ch_used = p_ch; 5214 5215 #if 0 5216 // Disabled: don't want making the screen smaller make a window larger. 5217 if (p_ea) 5218 win_equal(curwin, FALSE, 'v'); 5219 #endif 5220 } 5221 5222 /* 5223 * Called from win_new_shellsize() after Columns changed. 5224 */ 5225 void 5226 shell_new_columns(void) 5227 { 5228 if (firstwin == NULL) // not initialized yet 5229 return; 5230 5231 // First try setting the widths of windows with 'winfixwidth'. If that 5232 // doesn't result in the right width, forget about that option. 5233 frame_new_width(topframe, (int)Columns, FALSE, TRUE); 5234 if (!frame_check_width(topframe, Columns)) 5235 frame_new_width(topframe, (int)Columns, FALSE, FALSE); 5236 5237 (void)win_comp_pos(); // recompute w_winrow and w_wincol 5238 #if 0 5239 // Disabled: don't want making the screen smaller make a window larger. 5240 if (p_ea) 5241 win_equal(curwin, FALSE, 'h'); 5242 #endif 5243 } 5244 5245 #if defined(FEAT_CMDWIN) || defined(PROTO) 5246 /* 5247 * Save the size of all windows in "gap". 5248 */ 5249 void 5250 win_size_save(garray_T *gap) 5251 5252 { 5253 win_T *wp; 5254 5255 ga_init2(gap, (int)sizeof(int), 1); 5256 if (ga_grow(gap, win_count() * 2 + 1) == OK) 5257 { 5258 // first entry is value of 'lines' 5259 ((int *)gap->ga_data)[gap->ga_len++] = Rows; 5260 5261 FOR_ALL_WINDOWS(wp) 5262 { 5263 ((int *)gap->ga_data)[gap->ga_len++] = 5264 wp->w_width + wp->w_vsep_width; 5265 ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height; 5266 } 5267 } 5268 } 5269 5270 /* 5271 * Restore window sizes, but only if the number of windows is still the same 5272 * and 'lines' didn't change. 5273 * Does not free the growarray. 5274 */ 5275 void 5276 win_size_restore(garray_T *gap) 5277 { 5278 win_T *wp; 5279 int i, j; 5280 5281 if (win_count() * 2 + 1 == gap->ga_len 5282 && ((int *)gap->ga_data)[0] == Rows) 5283 { 5284 // The order matters, because frames contain other frames, but it's 5285 // difficult to get right. The easy way out is to do it twice. 5286 for (j = 0; j < 2; ++j) 5287 { 5288 i = 1; 5289 FOR_ALL_WINDOWS(wp) 5290 { 5291 frame_setwidth(wp->w_frame, ((int *)gap->ga_data)[i++]); 5292 win_setheight_win(((int *)gap->ga_data)[i++], wp); 5293 } 5294 } 5295 // recompute the window positions 5296 (void)win_comp_pos(); 5297 } 5298 } 5299 #endif // FEAT_CMDWIN 5300 5301 /* 5302 * Update the position for all windows, using the width and height of the 5303 * frames. 5304 * Returns the row just after the last window. 5305 */ 5306 int 5307 win_comp_pos(void) 5308 { 5309 int row = tabline_height(); 5310 int col = 0; 5311 5312 frame_comp_pos(topframe, &row, &col); 5313 return row; 5314 } 5315 5316 /* 5317 * Update the position of the windows in frame "topfrp", using the width and 5318 * height of the frames. 5319 * "*row" and "*col" are the top-left position of the frame. They are updated 5320 * to the bottom-right position plus one. 5321 */ 5322 static void 5323 frame_comp_pos(frame_T *topfrp, int *row, int *col) 5324 { 5325 win_T *wp; 5326 frame_T *frp; 5327 int startcol; 5328 int startrow; 5329 int h; 5330 5331 wp = topfrp->fr_win; 5332 if (wp != NULL) 5333 { 5334 if (wp->w_winrow != *row || wp->w_wincol != *col) 5335 { 5336 // position changed, redraw 5337 wp->w_winrow = *row; 5338 wp->w_wincol = *col; 5339 redraw_win_later(wp, NOT_VALID); 5340 wp->w_redr_status = TRUE; 5341 } 5342 // WinBar will not show if the window height is zero 5343 h = VISIBLE_HEIGHT(wp) + wp->w_status_height; 5344 *row += h > topfrp->fr_height ? topfrp->fr_height : h; 5345 *col += wp->w_width + wp->w_vsep_width; 5346 } 5347 else 5348 { 5349 startrow = *row; 5350 startcol = *col; 5351 FOR_ALL_FRAMES(frp, topfrp->fr_child) 5352 { 5353 if (topfrp->fr_layout == FR_ROW) 5354 *row = startrow; // all frames are at the same row 5355 else 5356 *col = startcol; // all frames are at the same col 5357 frame_comp_pos(frp, row, col); 5358 } 5359 } 5360 } 5361 5362 /* 5363 * Set current window height and take care of repositioning other windows to 5364 * fit around it. 5365 */ 5366 void 5367 win_setheight(int height) 5368 { 5369 win_setheight_win(height, curwin); 5370 } 5371 5372 /* 5373 * Set the window height of window "win" and take care of repositioning other 5374 * windows to fit around it. 5375 */ 5376 void 5377 win_setheight_win(int height, win_T *win) 5378 { 5379 int row; 5380 5381 if (win == curwin) 5382 { 5383 // Always keep current window at least one line high, even when 5384 // 'winminheight' is zero. 5385 if (height < p_wmh) 5386 height = p_wmh; 5387 if (height == 0) 5388 height = 1; 5389 height += WINBAR_HEIGHT(curwin); 5390 } 5391 5392 frame_setheight(win->w_frame, height + win->w_status_height); 5393 5394 // recompute the window positions 5395 row = win_comp_pos(); 5396 5397 /* 5398 * If there is extra space created between the last window and the command 5399 * line, clear it. 5400 */ 5401 if (full_screen && msg_scrolled == 0 && row < cmdline_row) 5402 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5403 cmdline_row = row; 5404 msg_row = row; 5405 msg_col = 0; 5406 5407 redraw_all_later(NOT_VALID); 5408 } 5409 5410 /* 5411 * Set the height of a frame to "height" and take care that all frames and 5412 * windows inside it are resized. Also resize frames on the left and right if 5413 * the are in the same FR_ROW frame. 5414 * 5415 * Strategy: 5416 * If the frame is part of a FR_COL frame, try fitting the frame in that 5417 * frame. If that doesn't work (the FR_COL frame is too small), recursively 5418 * go to containing frames to resize them and make room. 5419 * If the frame is part of a FR_ROW frame, all frames must be resized as well. 5420 * Check for the minimal height of the FR_ROW frame. 5421 * At the top level we can also use change the command line height. 5422 */ 5423 static void 5424 frame_setheight(frame_T *curfrp, int height) 5425 { 5426 int room; // total number of lines available 5427 int take; // number of lines taken from other windows 5428 int room_cmdline; // lines available from cmdline 5429 int run; 5430 frame_T *frp; 5431 int h; 5432 int room_reserved; 5433 5434 // If the height already is the desired value, nothing to do. 5435 if (curfrp->fr_height == height) 5436 return; 5437 5438 if (curfrp->fr_parent == NULL) 5439 { 5440 // topframe: can only change the command line 5441 if (height > ROWS_AVAIL) 5442 height = ROWS_AVAIL; 5443 if (height > 0) 5444 frame_new_height(curfrp, height, FALSE, FALSE); 5445 } 5446 else if (curfrp->fr_parent->fr_layout == FR_ROW) 5447 { 5448 // Row of frames: Also need to resize frames left and right of this 5449 // one. First check for the minimal height of these. 5450 h = frame_minheight(curfrp->fr_parent, NULL); 5451 if (height < h) 5452 height = h; 5453 frame_setheight(curfrp->fr_parent, height); 5454 } 5455 else 5456 { 5457 /* 5458 * Column of frames: try to change only frames in this column. 5459 */ 5460 /* 5461 * Do this twice: 5462 * 1: compute room available, if it's not enough try resizing the 5463 * containing frame. 5464 * 2: compute the room available and adjust the height to it. 5465 * Try not to reduce the height of a window with 'winfixheight' set. 5466 */ 5467 for (run = 1; run <= 2; ++run) 5468 { 5469 room = 0; 5470 room_reserved = 0; 5471 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5472 { 5473 if (frp != curfrp 5474 && frp->fr_win != NULL 5475 && frp->fr_win->w_p_wfh) 5476 room_reserved += frp->fr_height; 5477 room += frp->fr_height; 5478 if (frp != curfrp) 5479 room -= frame_minheight(frp, NULL); 5480 } 5481 if (curfrp->fr_width != Columns) 5482 room_cmdline = 0; 5483 else 5484 { 5485 room_cmdline = Rows - p_ch - (lastwin->w_winrow 5486 + VISIBLE_HEIGHT(lastwin) 5487 + lastwin->w_status_height); 5488 if (room_cmdline < 0) 5489 room_cmdline = 0; 5490 } 5491 5492 if (height <= room + room_cmdline) 5493 break; 5494 if (run == 2 || curfrp->fr_width == Columns) 5495 { 5496 if (height > room + room_cmdline) 5497 height = room + room_cmdline; 5498 break; 5499 } 5500 frame_setheight(curfrp->fr_parent, height 5501 + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1); 5502 } 5503 5504 /* 5505 * Compute the number of lines we will take from others frames (can be 5506 * negative!). 5507 */ 5508 take = height - curfrp->fr_height; 5509 5510 // If there is not enough room, also reduce the height of a window 5511 // with 'winfixheight' set. 5512 if (height > room + room_cmdline - room_reserved) 5513 room_reserved = room + room_cmdline - height; 5514 // If there is only a 'winfixheight' window and making the 5515 // window smaller, need to make the other window taller. 5516 if (take < 0 && room - curfrp->fr_height < room_reserved) 5517 room_reserved = 0; 5518 5519 if (take > 0 && room_cmdline > 0) 5520 { 5521 // use lines from cmdline first 5522 if (take < room_cmdline) 5523 room_cmdline = take; 5524 take -= room_cmdline; 5525 topframe->fr_height += room_cmdline; 5526 } 5527 5528 /* 5529 * set the current frame to the new height 5530 */ 5531 frame_new_height(curfrp, height, FALSE, FALSE); 5532 5533 /* 5534 * First take lines from the frames after the current frame. If 5535 * that is not enough, takes lines from frames above the current 5536 * frame. 5537 */ 5538 for (run = 0; run < 2; ++run) 5539 { 5540 if (run == 0) 5541 frp = curfrp->fr_next; // 1st run: start with next window 5542 else 5543 frp = curfrp->fr_prev; // 2nd run: start with prev window 5544 while (frp != NULL && take != 0) 5545 { 5546 h = frame_minheight(frp, NULL); 5547 if (room_reserved > 0 5548 && frp->fr_win != NULL 5549 && frp->fr_win->w_p_wfh) 5550 { 5551 if (room_reserved >= frp->fr_height) 5552 room_reserved -= frp->fr_height; 5553 else 5554 { 5555 if (frp->fr_height - room_reserved > take) 5556 room_reserved = frp->fr_height - take; 5557 take -= frp->fr_height - room_reserved; 5558 frame_new_height(frp, room_reserved, FALSE, FALSE); 5559 room_reserved = 0; 5560 } 5561 } 5562 else 5563 { 5564 if (frp->fr_height - take < h) 5565 { 5566 take -= frp->fr_height - h; 5567 frame_new_height(frp, h, FALSE, FALSE); 5568 } 5569 else 5570 { 5571 frame_new_height(frp, frp->fr_height - take, 5572 FALSE, FALSE); 5573 take = 0; 5574 } 5575 } 5576 if (run == 0) 5577 frp = frp->fr_next; 5578 else 5579 frp = frp->fr_prev; 5580 } 5581 } 5582 } 5583 } 5584 5585 /* 5586 * Set current window width and take care of repositioning other windows to 5587 * fit around it. 5588 */ 5589 void 5590 win_setwidth(int width) 5591 { 5592 win_setwidth_win(width, curwin); 5593 } 5594 5595 void 5596 win_setwidth_win(int width, win_T *wp) 5597 { 5598 // Always keep current window at least one column wide, even when 5599 // 'winminwidth' is zero. 5600 if (wp == curwin) 5601 { 5602 if (width < p_wmw) 5603 width = p_wmw; 5604 if (width == 0) 5605 width = 1; 5606 } 5607 5608 frame_setwidth(wp->w_frame, width + wp->w_vsep_width); 5609 5610 // recompute the window positions 5611 (void)win_comp_pos(); 5612 5613 redraw_all_later(NOT_VALID); 5614 } 5615 5616 /* 5617 * Set the width of a frame to "width" and take care that all frames and 5618 * windows inside it are resized. Also resize frames above and below if the 5619 * are in the same FR_ROW frame. 5620 * 5621 * Strategy is similar to frame_setheight(). 5622 */ 5623 static void 5624 frame_setwidth(frame_T *curfrp, int width) 5625 { 5626 int room; // total number of lines available 5627 int take; // number of lines taken from other windows 5628 int run; 5629 frame_T *frp; 5630 int w; 5631 int room_reserved; 5632 5633 // If the width already is the desired value, nothing to do. 5634 if (curfrp->fr_width == width) 5635 return; 5636 5637 if (curfrp->fr_parent == NULL) 5638 // topframe: can't change width 5639 return; 5640 5641 if (curfrp->fr_parent->fr_layout == FR_COL) 5642 { 5643 // Column of frames: Also need to resize frames above and below of 5644 // this one. First check for the minimal width of these. 5645 w = frame_minwidth(curfrp->fr_parent, NULL); 5646 if (width < w) 5647 width = w; 5648 frame_setwidth(curfrp->fr_parent, width); 5649 } 5650 else 5651 { 5652 /* 5653 * Row of frames: try to change only frames in this row. 5654 * 5655 * Do this twice: 5656 * 1: compute room available, if it's not enough try resizing the 5657 * containing frame. 5658 * 2: compute the room available and adjust the width to it. 5659 */ 5660 for (run = 1; run <= 2; ++run) 5661 { 5662 room = 0; 5663 room_reserved = 0; 5664 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5665 { 5666 if (frp != curfrp 5667 && frp->fr_win != NULL 5668 && frp->fr_win->w_p_wfw) 5669 room_reserved += frp->fr_width; 5670 room += frp->fr_width; 5671 if (frp != curfrp) 5672 room -= frame_minwidth(frp, NULL); 5673 } 5674 5675 if (width <= room) 5676 break; 5677 if (run == 2 || curfrp->fr_height >= ROWS_AVAIL) 5678 { 5679 if (width > room) 5680 width = room; 5681 break; 5682 } 5683 frame_setwidth(curfrp->fr_parent, width 5684 + frame_minwidth(curfrp->fr_parent, NOWIN) - (int)p_wmw - 1); 5685 } 5686 5687 /* 5688 * Compute the number of lines we will take from others frames (can be 5689 * negative!). 5690 */ 5691 take = width - curfrp->fr_width; 5692 5693 // If there is not enough room, also reduce the width of a window 5694 // with 'winfixwidth' set. 5695 if (width > room - room_reserved) 5696 room_reserved = room - width; 5697 // If there is only a 'winfixwidth' window and making the 5698 // window smaller, need to make the other window narrower. 5699 if (take < 0 && room - curfrp->fr_width < room_reserved) 5700 room_reserved = 0; 5701 5702 /* 5703 * set the current frame to the new width 5704 */ 5705 frame_new_width(curfrp, width, FALSE, FALSE); 5706 5707 /* 5708 * First take lines from the frames right of the current frame. If 5709 * that is not enough, takes lines from frames left of the current 5710 * frame. 5711 */ 5712 for (run = 0; run < 2; ++run) 5713 { 5714 if (run == 0) 5715 frp = curfrp->fr_next; // 1st run: start with next window 5716 else 5717 frp = curfrp->fr_prev; // 2nd run: start with prev window 5718 while (frp != NULL && take != 0) 5719 { 5720 w = frame_minwidth(frp, NULL); 5721 if (room_reserved > 0 5722 && frp->fr_win != NULL 5723 && frp->fr_win->w_p_wfw) 5724 { 5725 if (room_reserved >= frp->fr_width) 5726 room_reserved -= frp->fr_width; 5727 else 5728 { 5729 if (frp->fr_width - room_reserved > take) 5730 room_reserved = frp->fr_width - take; 5731 take -= frp->fr_width - room_reserved; 5732 frame_new_width(frp, room_reserved, FALSE, FALSE); 5733 room_reserved = 0; 5734 } 5735 } 5736 else 5737 { 5738 if (frp->fr_width - take < w) 5739 { 5740 take -= frp->fr_width - w; 5741 frame_new_width(frp, w, FALSE, FALSE); 5742 } 5743 else 5744 { 5745 frame_new_width(frp, frp->fr_width - take, 5746 FALSE, FALSE); 5747 take = 0; 5748 } 5749 } 5750 if (run == 0) 5751 frp = frp->fr_next; 5752 else 5753 frp = frp->fr_prev; 5754 } 5755 } 5756 } 5757 } 5758 5759 /* 5760 * Check 'winminheight' for a valid value and reduce it if needed. 5761 */ 5762 void 5763 win_setminheight(void) 5764 { 5765 int room; 5766 int needed; 5767 int first = TRUE; 5768 5769 // loop until there is a 'winminheight' that is possible 5770 while (p_wmh > 0) 5771 { 5772 room = Rows - p_ch; 5773 needed = frame_minheight(topframe, NULL); 5774 if (room >= needed) 5775 break; 5776 --p_wmh; 5777 if (first) 5778 { 5779 emsg(_(e_noroom)); 5780 first = FALSE; 5781 } 5782 } 5783 } 5784 5785 /* 5786 * Check 'winminwidth' for a valid value and reduce it if needed. 5787 */ 5788 void 5789 win_setminwidth(void) 5790 { 5791 int room; 5792 int needed; 5793 int first = TRUE; 5794 5795 // loop until there is a 'winminheight' that is possible 5796 while (p_wmw > 0) 5797 { 5798 room = Columns; 5799 needed = frame_minwidth(topframe, NULL); 5800 if (room >= needed) 5801 break; 5802 --p_wmw; 5803 if (first) 5804 { 5805 emsg(_(e_noroom)); 5806 first = FALSE; 5807 } 5808 } 5809 } 5810 5811 /* 5812 * Status line of dragwin is dragged "offset" lines down (negative is up). 5813 */ 5814 void 5815 win_drag_status_line(win_T *dragwin, int offset) 5816 { 5817 frame_T *curfr; 5818 frame_T *fr; 5819 int room; 5820 int row; 5821 int up; // if TRUE, drag status line up, otherwise down 5822 int n; 5823 5824 fr = dragwin->w_frame; 5825 curfr = fr; 5826 if (fr != topframe) // more than one window 5827 { 5828 fr = fr->fr_parent; 5829 // When the parent frame is not a column of frames, its parent should 5830 // be. 5831 if (fr->fr_layout != FR_COL) 5832 { 5833 curfr = fr; 5834 if (fr != topframe) // only a row of windows, may drag statusline 5835 fr = fr->fr_parent; 5836 } 5837 } 5838 5839 // If this is the last frame in a column, may want to resize the parent 5840 // frame instead (go two up to skip a row of frames). 5841 while (curfr != topframe && curfr->fr_next == NULL) 5842 { 5843 if (fr != topframe) 5844 fr = fr->fr_parent; 5845 curfr = fr; 5846 if (fr != topframe) 5847 fr = fr->fr_parent; 5848 } 5849 5850 if (offset < 0) // drag up 5851 { 5852 up = TRUE; 5853 offset = -offset; 5854 // sum up the room of the current frame and above it 5855 if (fr == curfr) 5856 { 5857 // only one window 5858 room = fr->fr_height - frame_minheight(fr, NULL); 5859 } 5860 else 5861 { 5862 room = 0; 5863 for (fr = fr->fr_child; ; fr = fr->fr_next) 5864 { 5865 room += fr->fr_height - frame_minheight(fr, NULL); 5866 if (fr == curfr) 5867 break; 5868 } 5869 } 5870 fr = curfr->fr_next; // put fr at frame that grows 5871 } 5872 else // drag down 5873 { 5874 up = FALSE; 5875 /* 5876 * Only dragging the last status line can reduce p_ch. 5877 */ 5878 room = Rows - cmdline_row; 5879 if (curfr->fr_next == NULL) 5880 room -= 1; 5881 else 5882 room -= p_ch; 5883 if (room < 0) 5884 room = 0; 5885 // sum up the room of frames below of the current one 5886 FOR_ALL_FRAMES(fr, curfr->fr_next) 5887 room += fr->fr_height - frame_minheight(fr, NULL); 5888 fr = curfr; // put fr at window that grows 5889 } 5890 5891 if (room < offset) // Not enough room 5892 offset = room; // Move as far as we can 5893 if (offset <= 0) 5894 return; 5895 5896 /* 5897 * Grow frame fr by "offset" lines. 5898 * Doesn't happen when dragging the last status line up. 5899 */ 5900 if (fr != NULL) 5901 frame_new_height(fr, fr->fr_height + offset, up, FALSE); 5902 5903 if (up) 5904 fr = curfr; // current frame gets smaller 5905 else 5906 fr = curfr->fr_next; // next frame gets smaller 5907 5908 /* 5909 * Now make the other frames smaller. 5910 */ 5911 while (fr != NULL && offset > 0) 5912 { 5913 n = frame_minheight(fr, NULL); 5914 if (fr->fr_height - offset <= n) 5915 { 5916 offset -= fr->fr_height - n; 5917 frame_new_height(fr, n, !up, FALSE); 5918 } 5919 else 5920 { 5921 frame_new_height(fr, fr->fr_height - offset, !up, FALSE); 5922 break; 5923 } 5924 if (up) 5925 fr = fr->fr_prev; 5926 else 5927 fr = fr->fr_next; 5928 } 5929 row = win_comp_pos(); 5930 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5931 cmdline_row = row; 5932 p_ch = Rows - cmdline_row; 5933 if (p_ch < 1) 5934 p_ch = 1; 5935 curtab->tp_ch_used = p_ch; 5936 redraw_all_later(SOME_VALID); 5937 showmode(); 5938 } 5939 5940 /* 5941 * Separator line of dragwin is dragged "offset" lines right (negative is left). 5942 */ 5943 void 5944 win_drag_vsep_line(win_T *dragwin, int offset) 5945 { 5946 frame_T *curfr; 5947 frame_T *fr; 5948 int room; 5949 int left; // if TRUE, drag separator line left, otherwise right 5950 int n; 5951 5952 fr = dragwin->w_frame; 5953 if (fr == topframe) // only one window (cannot happen?) 5954 return; 5955 curfr = fr; 5956 fr = fr->fr_parent; 5957 // When the parent frame is not a row of frames, its parent should be. 5958 if (fr->fr_layout != FR_ROW) 5959 { 5960 if (fr == topframe) // only a column of windows (cannot happen?) 5961 return; 5962 curfr = fr; 5963 fr = fr->fr_parent; 5964 } 5965 5966 // If this is the last frame in a row, may want to resize a parent 5967 // frame instead. 5968 while (curfr->fr_next == NULL) 5969 { 5970 if (fr == topframe) 5971 break; 5972 curfr = fr; 5973 fr = fr->fr_parent; 5974 if (fr != topframe) 5975 { 5976 curfr = fr; 5977 fr = fr->fr_parent; 5978 } 5979 } 5980 5981 if (offset < 0) // drag left 5982 { 5983 left = TRUE; 5984 offset = -offset; 5985 // sum up the room of the current frame and left of it 5986 room = 0; 5987 for (fr = fr->fr_child; ; fr = fr->fr_next) 5988 { 5989 room += fr->fr_width - frame_minwidth(fr, NULL); 5990 if (fr == curfr) 5991 break; 5992 } 5993 fr = curfr->fr_next; // put fr at frame that grows 5994 } 5995 else // drag right 5996 { 5997 left = FALSE; 5998 // sum up the room of frames right of the current one 5999 room = 0; 6000 FOR_ALL_FRAMES(fr, curfr->fr_next) 6001 room += fr->fr_width - frame_minwidth(fr, NULL); 6002 fr = curfr; // put fr at window that grows 6003 } 6004 6005 if (room < offset) // Not enough room 6006 offset = room; // Move as far as we can 6007 if (offset <= 0) // No room at all, quit. 6008 return; 6009 if (fr == NULL) 6010 return; // Safety check, should not happen. 6011 6012 // grow frame fr by offset lines 6013 frame_new_width(fr, fr->fr_width + offset, left, FALSE); 6014 6015 // shrink other frames: current and at the left or at the right 6016 if (left) 6017 fr = curfr; // current frame gets smaller 6018 else 6019 fr = curfr->fr_next; // next frame gets smaller 6020 6021 while (fr != NULL && offset > 0) 6022 { 6023 n = frame_minwidth(fr, NULL); 6024 if (fr->fr_width - offset <= n) 6025 { 6026 offset -= fr->fr_width - n; 6027 frame_new_width(fr, n, !left, FALSE); 6028 } 6029 else 6030 { 6031 frame_new_width(fr, fr->fr_width - offset, !left, FALSE); 6032 break; 6033 } 6034 if (left) 6035 fr = fr->fr_prev; 6036 else 6037 fr = fr->fr_next; 6038 } 6039 (void)win_comp_pos(); 6040 redraw_all_later(NOT_VALID); 6041 } 6042 6043 #define FRACTION_MULT 16384L 6044 6045 /* 6046 * Set wp->w_fraction for the current w_wrow and w_height. 6047 * Has no effect when the window is less than two lines. 6048 */ 6049 void 6050 set_fraction(win_T *wp) 6051 { 6052 if (wp->w_height > 1) 6053 // When cursor is in the first line the percentage is computed as if 6054 // it's halfway that line. Thus with two lines it is 25%, with three 6055 // lines 17%, etc. Similarly for the last line: 75%, 83%, etc. 6056 wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT 6057 + FRACTION_MULT / 2) / (long)wp->w_height; 6058 } 6059 6060 /* 6061 * Set the height of a window. 6062 * "height" excludes any window toolbar. 6063 * This takes care of the things inside the window, not what happens to the 6064 * window position, the frame or to other windows. 6065 */ 6066 void 6067 win_new_height(win_T *wp, int height) 6068 { 6069 int prev_height = wp->w_height; 6070 6071 // Don't want a negative height. Happens when splitting a tiny window. 6072 // Will equalize heights soon to fix it. 6073 if (height < 0) 6074 height = 0; 6075 if (wp->w_height == height) 6076 return; // nothing to do 6077 6078 if (wp->w_height > 0) 6079 { 6080 if (wp == curwin) 6081 // w_wrow needs to be valid. When setting 'laststatus' this may 6082 // call win_new_height() recursively. 6083 validate_cursor(); 6084 if (wp->w_height != prev_height) 6085 return; // Recursive call already changed the size, bail out here 6086 // to avoid the following to mess things up. 6087 if (wp->w_wrow != wp->w_prev_fraction_row) 6088 set_fraction(wp); 6089 } 6090 6091 wp->w_height = height; 6092 wp->w_skipcol = 0; 6093 6094 // There is no point in adjusting the scroll position when exiting. Some 6095 // values might be invalid. 6096 if (!exiting) 6097 scroll_to_fraction(wp, prev_height); 6098 } 6099 6100 void 6101 scroll_to_fraction(win_T *wp, int prev_height) 6102 { 6103 linenr_T lnum; 6104 int sline, line_size; 6105 int height = wp->w_height; 6106 6107 // Don't change w_topline in any of these cases: 6108 // - window height is 0 6109 // - 'scrollbind' is set and this isn't the current window 6110 // - window height is sufficient to display the whole buffer and first line 6111 // is visible. 6112 if (height > 0 6113 && (!wp->w_p_scb || wp == curwin) 6114 && (height < wp->w_buffer->b_ml.ml_line_count || wp->w_topline > 1)) 6115 { 6116 /* 6117 * Find a value for w_topline that shows the cursor at the same 6118 * relative position in the window as before (more or less). 6119 */ 6120 lnum = wp->w_cursor.lnum; 6121 if (lnum < 1) // can happen when starting up 6122 lnum = 1; 6123 wp->w_wrow = ((long)wp->w_fraction * (long)height - 1L) 6124 / FRACTION_MULT; 6125 line_size = plines_win_col(wp, lnum, (long)(wp->w_cursor.col)) - 1; 6126 sline = wp->w_wrow - line_size; 6127 6128 if (sline >= 0) 6129 { 6130 // Make sure the whole cursor line is visible, if possible. 6131 int rows = plines_win(wp, lnum, FALSE); 6132 6133 if (sline > wp->w_height - rows) 6134 { 6135 sline = wp->w_height - rows; 6136 wp->w_wrow -= rows - line_size; 6137 } 6138 } 6139 6140 if (sline < 0) 6141 { 6142 /* 6143 * Cursor line would go off top of screen if w_wrow was this high. 6144 * Make cursor line the first line in the window. If not enough 6145 * room use w_skipcol; 6146 */ 6147 wp->w_wrow = line_size; 6148 if (wp->w_wrow >= wp->w_height 6149 && (wp->w_width - win_col_off(wp)) > 0) 6150 { 6151 wp->w_skipcol += wp->w_width - win_col_off(wp); 6152 --wp->w_wrow; 6153 while (wp->w_wrow >= wp->w_height) 6154 { 6155 wp->w_skipcol += wp->w_width - win_col_off(wp) 6156 + win_col_off2(wp); 6157 --wp->w_wrow; 6158 } 6159 } 6160 } 6161 else if (sline > 0) 6162 { 6163 while (sline > 0 && lnum > 1) 6164 { 6165 #ifdef FEAT_FOLDING 6166 hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); 6167 if (lnum == 1) 6168 { 6169 // first line in buffer is folded 6170 line_size = 1; 6171 --sline; 6172 break; 6173 } 6174 #endif 6175 --lnum; 6176 #ifdef FEAT_DIFF 6177 if (lnum == wp->w_topline) 6178 line_size = plines_win_nofill(wp, lnum, TRUE) 6179 + wp->w_topfill; 6180 else 6181 #endif 6182 line_size = plines_win(wp, lnum, TRUE); 6183 sline -= line_size; 6184 } 6185 6186 if (sline < 0) 6187 { 6188 /* 6189 * Line we want at top would go off top of screen. Use next 6190 * line instead. 6191 */ 6192 #ifdef FEAT_FOLDING 6193 hasFoldingWin(wp, lnum, NULL, &lnum, TRUE, NULL); 6194 #endif 6195 lnum++; 6196 wp->w_wrow -= line_size + sline; 6197 } 6198 else if (sline > 0) 6199 { 6200 // First line of file reached, use that as topline. 6201 lnum = 1; 6202 wp->w_wrow -= sline; 6203 } 6204 } 6205 set_topline(wp, lnum); 6206 } 6207 6208 if (wp == curwin) 6209 { 6210 if (get_scrolloff_value()) 6211 update_topline(); 6212 curs_columns(FALSE); // validate w_wrow 6213 } 6214 if (prev_height > 0) 6215 wp->w_prev_fraction_row = wp->w_wrow; 6216 6217 win_comp_scroll(wp); 6218 redraw_win_later(wp, SOME_VALID); 6219 wp->w_redr_status = TRUE; 6220 invalidate_botline_win(wp); 6221 } 6222 6223 /* 6224 * Set the width of a window. 6225 */ 6226 void 6227 win_new_width(win_T *wp, int width) 6228 { 6229 wp->w_width = width; 6230 wp->w_lines_valid = 0; 6231 changed_line_abv_curs_win(wp); 6232 invalidate_botline_win(wp); 6233 if (wp == curwin) 6234 { 6235 update_topline(); 6236 curs_columns(TRUE); // validate w_wrow 6237 } 6238 redraw_win_later(wp, NOT_VALID); 6239 wp->w_redr_status = TRUE; 6240 } 6241 6242 void 6243 win_comp_scroll(win_T *wp) 6244 { 6245 wp->w_p_scr = ((unsigned)wp->w_height >> 1); 6246 if (wp->w_p_scr == 0) 6247 wp->w_p_scr = 1; 6248 } 6249 6250 /* 6251 * command_height: called whenever p_ch has been changed 6252 */ 6253 void 6254 command_height(void) 6255 { 6256 int h; 6257 frame_T *frp; 6258 int old_p_ch = curtab->tp_ch_used; 6259 6260 // Use the value of p_ch that we remembered. This is needed for when the 6261 // GUI starts up, we can't be sure in what order things happen. And when 6262 // p_ch was changed in another tab page. 6263 curtab->tp_ch_used = p_ch; 6264 6265 // Find bottom frame with width of screen. 6266 frp = lastwin->w_frame; 6267 while (frp->fr_width != Columns && frp->fr_parent != NULL) 6268 frp = frp->fr_parent; 6269 6270 // Avoid changing the height of a window with 'winfixheight' set. 6271 while (frp->fr_prev != NULL && frp->fr_layout == FR_LEAF 6272 && frp->fr_win->w_p_wfh) 6273 frp = frp->fr_prev; 6274 6275 if (starting != NO_SCREEN) 6276 { 6277 cmdline_row = Rows - p_ch; 6278 6279 if (p_ch > old_p_ch) // p_ch got bigger 6280 { 6281 while (p_ch > old_p_ch) 6282 { 6283 if (frp == NULL) 6284 { 6285 emsg(_(e_noroom)); 6286 p_ch = old_p_ch; 6287 curtab->tp_ch_used = p_ch; 6288 cmdline_row = Rows - p_ch; 6289 break; 6290 } 6291 h = frp->fr_height - frame_minheight(frp, NULL); 6292 if (h > p_ch - old_p_ch) 6293 h = p_ch - old_p_ch; 6294 old_p_ch += h; 6295 frame_add_height(frp, -h); 6296 frp = frp->fr_prev; 6297 } 6298 6299 // Recompute window positions. 6300 (void)win_comp_pos(); 6301 6302 // clear the lines added to cmdline 6303 if (full_screen) 6304 screen_fill((int)(cmdline_row), (int)Rows, 0, 6305 (int)Columns, ' ', ' ', 0); 6306 msg_row = cmdline_row; 6307 redraw_cmdline = TRUE; 6308 return; 6309 } 6310 6311 if (msg_row < cmdline_row) 6312 msg_row = cmdline_row; 6313 redraw_cmdline = TRUE; 6314 } 6315 frame_add_height(frp, (int)(old_p_ch - p_ch)); 6316 6317 // Recompute window positions. 6318 if (frp != lastwin->w_frame) 6319 (void)win_comp_pos(); 6320 } 6321 6322 /* 6323 * Resize frame "frp" to be "n" lines higher (negative for less high). 6324 * Also resize the frames it is contained in. 6325 */ 6326 static void 6327 frame_add_height(frame_T *frp, int n) 6328 { 6329 frame_new_height(frp, frp->fr_height + n, FALSE, FALSE); 6330 for (;;) 6331 { 6332 frp = frp->fr_parent; 6333 if (frp == NULL) 6334 break; 6335 frp->fr_height += n; 6336 } 6337 } 6338 6339 /* 6340 * Add or remove a status line for the bottom window(s), according to the 6341 * value of 'laststatus'. 6342 */ 6343 void 6344 last_status( 6345 int morewin) // pretend there are two or more windows 6346 { 6347 // Don't make a difference between horizontal or vertical split. 6348 last_status_rec(topframe, (p_ls == 2 6349 || (p_ls == 1 && (morewin || !ONE_WINDOW)))); 6350 } 6351 6352 static void 6353 last_status_rec(frame_T *fr, int statusline) 6354 { 6355 frame_T *fp; 6356 win_T *wp; 6357 6358 if (fr->fr_layout == FR_LEAF) 6359 { 6360 wp = fr->fr_win; 6361 if (wp->w_status_height != 0 && !statusline) 6362 { 6363 // remove status line 6364 win_new_height(wp, wp->w_height + 1); 6365 wp->w_status_height = 0; 6366 comp_col(); 6367 } 6368 else if (wp->w_status_height == 0 && statusline) 6369 { 6370 // Find a frame to take a line from. 6371 fp = fr; 6372 while (fp->fr_height <= frame_minheight(fp, NULL)) 6373 { 6374 if (fp == topframe) 6375 { 6376 emsg(_(e_noroom)); 6377 return; 6378 } 6379 // In a column of frames: go to frame above. If already at 6380 // the top or in a row of frames: go to parent. 6381 if (fp->fr_parent->fr_layout == FR_COL && fp->fr_prev != NULL) 6382 fp = fp->fr_prev; 6383 else 6384 fp = fp->fr_parent; 6385 } 6386 wp->w_status_height = 1; 6387 if (fp != fr) 6388 { 6389 frame_new_height(fp, fp->fr_height - 1, FALSE, FALSE); 6390 frame_fix_height(wp); 6391 (void)win_comp_pos(); 6392 } 6393 else 6394 win_new_height(wp, wp->w_height - 1); 6395 comp_col(); 6396 redraw_all_later(SOME_VALID); 6397 } 6398 } 6399 else if (fr->fr_layout == FR_ROW) 6400 { 6401 // vertically split windows, set status line for each one 6402 FOR_ALL_FRAMES(fp, fr->fr_child) 6403 last_status_rec(fp, statusline); 6404 } 6405 else 6406 { 6407 // horizontally split window, set status line for last one 6408 for (fp = fr->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 6409 ; 6410 last_status_rec(fp, statusline); 6411 } 6412 } 6413 6414 /* 6415 * Return the number of lines used by the tab page line. 6416 */ 6417 int 6418 tabline_height(void) 6419 { 6420 #ifdef FEAT_GUI_TABLINE 6421 // When the GUI has the tabline then this always returns zero. 6422 if (gui_use_tabline()) 6423 return 0; 6424 #endif 6425 switch (p_stal) 6426 { 6427 case 0: return 0; 6428 case 1: return (first_tabpage->tp_next == NULL) ? 0 : 1; 6429 } 6430 return 1; 6431 } 6432 6433 /* 6434 * Return the minimal number of rows that is needed on the screen to display 6435 * the current number of windows. 6436 */ 6437 int 6438 min_rows(void) 6439 { 6440 int total; 6441 tabpage_T *tp; 6442 int n; 6443 6444 if (firstwin == NULL) // not initialized yet 6445 return MIN_LINES; 6446 6447 total = 0; 6448 FOR_ALL_TABPAGES(tp) 6449 { 6450 n = frame_minheight(tp->tp_topframe, NULL); 6451 if (total < n) 6452 total = n; 6453 } 6454 total += tabline_height(); 6455 total += 1; // count the room for the command line 6456 return total; 6457 } 6458 6459 /* 6460 * Return TRUE if there is only one window and only one tab page, not 6461 * counting a help or preview window, unless it is the current window. 6462 * Does not count unlisted windows. 6463 */ 6464 int 6465 only_one_window(void) 6466 { 6467 int count = 0; 6468 win_T *wp; 6469 6470 #if defined(FEAT_PROP_POPUP) 6471 // If the current window is a popup then there always is another window. 6472 if (popup_is_popup(curwin)) 6473 return FALSE; 6474 #endif 6475 6476 // If there is another tab page there always is another window. 6477 if (first_tabpage->tp_next != NULL) 6478 return FALSE; 6479 6480 FOR_ALL_WINDOWS(wp) 6481 if (wp->w_buffer != NULL 6482 && (!((bt_help(wp->w_buffer) && !bt_help(curbuf)) 6483 # ifdef FEAT_QUICKFIX 6484 || wp->w_p_pvw 6485 # endif 6486 ) || wp == curwin) && wp != aucmd_win) 6487 ++count; 6488 return (count <= 1); 6489 } 6490 6491 /* 6492 * Correct the cursor line number in other windows. Used after changing the 6493 * current buffer, and before applying autocommands. 6494 * When "do_curwin" is TRUE, also check current window. 6495 */ 6496 void 6497 check_lnums(int do_curwin) 6498 { 6499 win_T *wp; 6500 tabpage_T *tp; 6501 6502 FOR_ALL_TAB_WINDOWS(tp, wp) 6503 if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) 6504 { 6505 // save the original cursor position and topline 6506 wp->w_save_cursor.w_cursor_save = wp->w_cursor; 6507 wp->w_save_cursor.w_topline_save = wp->w_topline; 6508 6509 if (wp->w_cursor.lnum > curbuf->b_ml.ml_line_count) 6510 wp->w_cursor.lnum = curbuf->b_ml.ml_line_count; 6511 if (wp->w_topline > curbuf->b_ml.ml_line_count) 6512 wp->w_topline = curbuf->b_ml.ml_line_count; 6513 6514 // save the corrected cursor position and topline 6515 wp->w_save_cursor.w_cursor_corr = wp->w_cursor; 6516 wp->w_save_cursor.w_topline_corr = wp->w_topline; 6517 } 6518 } 6519 6520 /* 6521 * Reset cursor and topline to its stored values from check_lnums(). 6522 * check_lnums() must have been called first! 6523 */ 6524 void 6525 reset_lnums() 6526 { 6527 win_T *wp; 6528 tabpage_T *tp; 6529 6530 FOR_ALL_TAB_WINDOWS(tp, wp) 6531 if (wp->w_buffer == curbuf) 6532 { 6533 // Restore the value if the autocommand didn't change it. 6534 if (EQUAL_POS(wp->w_save_cursor.w_cursor_corr, wp->w_cursor)) 6535 wp->w_cursor = wp->w_save_cursor.w_cursor_save; 6536 if (wp->w_save_cursor.w_topline_corr == wp->w_topline) 6537 wp->w_topline = wp->w_save_cursor.w_topline_save; 6538 } 6539 } 6540 6541 /* 6542 * A snapshot of the window sizes, to restore them after closing the help 6543 * window. 6544 * Only these fields are used: 6545 * fr_layout 6546 * fr_width 6547 * fr_height 6548 * fr_next 6549 * fr_child 6550 * fr_win (only valid for the old curwin, NULL otherwise) 6551 */ 6552 6553 /* 6554 * Create a snapshot of the current frame sizes. 6555 */ 6556 void 6557 make_snapshot(int idx) 6558 { 6559 clear_snapshot(curtab, idx); 6560 make_snapshot_rec(topframe, &curtab->tp_snapshot[idx]); 6561 } 6562 6563 static void 6564 make_snapshot_rec(frame_T *fr, frame_T **frp) 6565 { 6566 *frp = ALLOC_CLEAR_ONE(frame_T); 6567 if (*frp == NULL) 6568 return; 6569 (*frp)->fr_layout = fr->fr_layout; 6570 (*frp)->fr_width = fr->fr_width; 6571 (*frp)->fr_height = fr->fr_height; 6572 if (fr->fr_next != NULL) 6573 make_snapshot_rec(fr->fr_next, &((*frp)->fr_next)); 6574 if (fr->fr_child != NULL) 6575 make_snapshot_rec(fr->fr_child, &((*frp)->fr_child)); 6576 if (fr->fr_layout == FR_LEAF && fr->fr_win == curwin) 6577 (*frp)->fr_win = curwin; 6578 } 6579 6580 /* 6581 * Remove any existing snapshot. 6582 */ 6583 static void 6584 clear_snapshot(tabpage_T *tp, int idx) 6585 { 6586 clear_snapshot_rec(tp->tp_snapshot[idx]); 6587 tp->tp_snapshot[idx] = NULL; 6588 } 6589 6590 static void 6591 clear_snapshot_rec(frame_T *fr) 6592 { 6593 if (fr != NULL) 6594 { 6595 clear_snapshot_rec(fr->fr_next); 6596 clear_snapshot_rec(fr->fr_child); 6597 vim_free(fr); 6598 } 6599 } 6600 6601 /* 6602 * Restore a previously created snapshot, if there is any. 6603 * This is only done if the screen size didn't change and the window layout is 6604 * still the same. 6605 */ 6606 void 6607 restore_snapshot( 6608 int idx, 6609 int close_curwin) // closing current window 6610 { 6611 win_T *wp; 6612 6613 if (curtab->tp_snapshot[idx] != NULL 6614 && curtab->tp_snapshot[idx]->fr_width == topframe->fr_width 6615 && curtab->tp_snapshot[idx]->fr_height == topframe->fr_height 6616 && check_snapshot_rec(curtab->tp_snapshot[idx], topframe) == OK) 6617 { 6618 wp = restore_snapshot_rec(curtab->tp_snapshot[idx], topframe); 6619 win_comp_pos(); 6620 if (wp != NULL && close_curwin) 6621 win_goto(wp); 6622 redraw_all_later(NOT_VALID); 6623 } 6624 clear_snapshot(curtab, idx); 6625 } 6626 6627 /* 6628 * Check if frames "sn" and "fr" have the same layout, same following frames 6629 * and same children. And the window pointer is valid. 6630 */ 6631 static int 6632 check_snapshot_rec(frame_T *sn, frame_T *fr) 6633 { 6634 if (sn->fr_layout != fr->fr_layout 6635 || (sn->fr_next == NULL) != (fr->fr_next == NULL) 6636 || (sn->fr_child == NULL) != (fr->fr_child == NULL) 6637 || (sn->fr_next != NULL 6638 && check_snapshot_rec(sn->fr_next, fr->fr_next) == FAIL) 6639 || (sn->fr_child != NULL 6640 && check_snapshot_rec(sn->fr_child, fr->fr_child) == FAIL) 6641 || (sn->fr_win != NULL && !win_valid(sn->fr_win))) 6642 return FAIL; 6643 return OK; 6644 } 6645 6646 /* 6647 * Copy the size of snapshot frame "sn" to frame "fr". Do the same for all 6648 * following frames and children. 6649 * Returns a pointer to the old current window, or NULL. 6650 */ 6651 static win_T * 6652 restore_snapshot_rec(frame_T *sn, frame_T *fr) 6653 { 6654 win_T *wp = NULL; 6655 win_T *wp2; 6656 6657 fr->fr_height = sn->fr_height; 6658 fr->fr_width = sn->fr_width; 6659 if (fr->fr_layout == FR_LEAF) 6660 { 6661 frame_new_height(fr, fr->fr_height, FALSE, FALSE); 6662 frame_new_width(fr, fr->fr_width, FALSE, FALSE); 6663 wp = sn->fr_win; 6664 } 6665 if (sn->fr_next != NULL) 6666 { 6667 wp2 = restore_snapshot_rec(sn->fr_next, fr->fr_next); 6668 if (wp2 != NULL) 6669 wp = wp2; 6670 } 6671 if (sn->fr_child != NULL) 6672 { 6673 wp2 = restore_snapshot_rec(sn->fr_child, fr->fr_child); 6674 if (wp2 != NULL) 6675 wp = wp2; 6676 } 6677 return wp; 6678 } 6679 6680 #if defined(FEAT_GUI) || defined(PROTO) 6681 /* 6682 * Return TRUE if there is any vertically split window. 6683 */ 6684 int 6685 win_hasvertsplit(void) 6686 { 6687 frame_T *fr; 6688 6689 if (topframe->fr_layout == FR_ROW) 6690 return TRUE; 6691 6692 if (topframe->fr_layout == FR_COL) 6693 FOR_ALL_FRAMES(fr, topframe->fr_child) 6694 if (fr->fr_layout == FR_ROW) 6695 return TRUE; 6696 6697 return FALSE; 6698 } 6699 #endif 6700 6701 #if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO) 6702 int 6703 get_win_number(win_T *wp, win_T *first_win) 6704 { 6705 int i = 1; 6706 win_T *w; 6707 6708 for (w = first_win; w != NULL && w != wp; w = W_NEXT(w)) 6709 ++i; 6710 6711 if (w == NULL) 6712 return 0; 6713 else 6714 return i; 6715 } 6716 6717 int 6718 get_tab_number(tabpage_T *tp UNUSED) 6719 { 6720 int i = 1; 6721 tabpage_T *t; 6722 6723 for (t = first_tabpage; t != NULL && t != tp; t = t->tp_next) 6724 ++i; 6725 6726 if (t == NULL) 6727 return 0; 6728 else 6729 return i; 6730 } 6731 #endif 6732 6733 /* 6734 * Return TRUE if "topfrp" and its children are at the right height. 6735 */ 6736 static int 6737 frame_check_height(frame_T *topfrp, int height) 6738 { 6739 frame_T *frp; 6740 6741 if (topfrp->fr_height != height) 6742 return FALSE; 6743 6744 if (topfrp->fr_layout == FR_ROW) 6745 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6746 if (frp->fr_height != height) 6747 return FALSE; 6748 6749 return TRUE; 6750 } 6751 6752 /* 6753 * Return TRUE if "topfrp" and its children are at the right width. 6754 */ 6755 static int 6756 frame_check_width(frame_T *topfrp, int width) 6757 { 6758 frame_T *frp; 6759 6760 if (topfrp->fr_width != width) 6761 return FALSE; 6762 6763 if (topfrp->fr_layout == FR_COL) 6764 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6765 if (frp->fr_width != width) 6766 return FALSE; 6767 6768 return TRUE; 6769 } 6770 6771 #if defined(FEAT_SYN_HL) || defined(PROTO) 6772 /* 6773 * Simple int comparison function for use with qsort() 6774 */ 6775 static int 6776 int_cmp(const void *a, const void *b) 6777 { 6778 return *(const int *)a - *(const int *)b; 6779 } 6780 6781 /* 6782 * Handle setting 'colorcolumn' or 'textwidth' in window "wp". 6783 * Returns error message, NULL if it's OK. 6784 */ 6785 char * 6786 check_colorcolumn(win_T *wp) 6787 { 6788 char_u *s; 6789 int col; 6790 int count = 0; 6791 int color_cols[256]; 6792 int i; 6793 int j = 0; 6794 6795 if (wp->w_buffer == NULL) 6796 return NULL; // buffer was closed 6797 6798 for (s = wp->w_p_cc; *s != NUL && count < 255;) 6799 { 6800 if (*s == '-' || *s == '+') 6801 { 6802 // -N and +N: add to 'textwidth' 6803 col = (*s == '-') ? -1 : 1; 6804 ++s; 6805 if (!VIM_ISDIGIT(*s)) 6806 return e_invarg; 6807 col = col * getdigits(&s); 6808 if (wp->w_buffer->b_p_tw == 0) 6809 goto skip; // 'textwidth' not set, skip this item 6810 col += wp->w_buffer->b_p_tw; 6811 if (col < 0) 6812 goto skip; 6813 } 6814 else if (VIM_ISDIGIT(*s)) 6815 col = getdigits(&s); 6816 else 6817 return e_invarg; 6818 color_cols[count++] = col - 1; // 1-based to 0-based 6819 skip: 6820 if (*s == NUL) 6821 break; 6822 if (*s != ',') 6823 return e_invarg; 6824 if (*++s == NUL) 6825 return e_invarg; // illegal trailing comma as in "set cc=80," 6826 } 6827 6828 vim_free(wp->w_p_cc_cols); 6829 if (count == 0) 6830 wp->w_p_cc_cols = NULL; 6831 else 6832 { 6833 wp->w_p_cc_cols = ALLOC_MULT(int, count + 1); 6834 if (wp->w_p_cc_cols != NULL) 6835 { 6836 // sort the columns for faster usage on screen redraw inside 6837 // win_line() 6838 qsort(color_cols, count, sizeof(int), int_cmp); 6839 6840 for (i = 0; i < count; ++i) 6841 // skip duplicates 6842 if (j == 0 || wp->w_p_cc_cols[j - 1] != color_cols[i]) 6843 wp->w_p_cc_cols[j++] = color_cols[i]; 6844 wp->w_p_cc_cols[j] = -1; // end marker 6845 } 6846 } 6847 6848 return NULL; // no error 6849 } 6850 #endif 6851