1 /* vi:set ts=8 sts=4 sw=4 noet: 2 * 3 * VIM - Vi IMproved by Bram Moolenaar 4 * 5 * Do ":help uganda" in Vim to read a list of people who contributed. 6 * Do ":help credits" in Vim to see a list of people who contributed. 7 * See README.txt for an overview of the Vim source code. 8 */ 9 10 #include "vim.h" 11 12 static void cmd_with_count(char *cmd, char_u *bufp, size_t bufsize, long Prenum); 13 static void win_init(win_T *newp, win_T *oldp, int flags); 14 static void win_init_some(win_T *newp, win_T *oldp); 15 static void frame_comp_pos(frame_T *topfrp, int *row, int *col); 16 static void frame_setheight(frame_T *curfrp, int height); 17 static void frame_setwidth(frame_T *curfrp, int width); 18 static void win_exchange(long); 19 static void win_rotate(int, int); 20 static void win_totop(int size, int flags); 21 static void win_equal_rec(win_T *next_curwin, int current, frame_T *topfr, int dir, int col, int row, int width, int height); 22 static win_T *win_free_mem(win_T *win, int *dirp, tabpage_T *tp); 23 static frame_T *win_altframe(win_T *win, tabpage_T *tp); 24 static tabpage_T *alt_tabpage(void); 25 static win_T *frame2win(frame_T *frp); 26 static int frame_has_win(frame_T *frp, win_T *wp); 27 static void frame_new_height(frame_T *topfrp, int height, int topfirst, int wfh); 28 static int frame_fixed_height(frame_T *frp); 29 static int frame_fixed_width(frame_T *frp); 30 static void frame_add_statusline(frame_T *frp); 31 static void frame_new_width(frame_T *topfrp, int width, int leftfirst, int wfw); 32 static void frame_add_vsep(frame_T *frp); 33 static int frame_minwidth(frame_T *topfrp, win_T *next_curwin); 34 static void frame_fix_width(win_T *wp); 35 static int win_alloc_firstwin(win_T *oldwin); 36 static void new_frame(win_T *wp); 37 static tabpage_T *alloc_tabpage(void); 38 static int leave_tabpage(buf_T *new_curbuf, int trigger_leave_autocmds); 39 static void enter_tabpage(tabpage_T *tp, buf_T *old_curbuf, int trigger_enter_autocmds, int trigger_leave_autocmds); 40 static void frame_fix_height(win_T *wp); 41 static int frame_minheight(frame_T *topfrp, win_T *next_curwin); 42 static int may_open_tabpage(void); 43 static void win_enter_ext(win_T *wp, int undo_sync, int no_curwin, int trigger_new_autocmds, int trigger_enter_autocmds, int trigger_leave_autocmds); 44 static void win_free(win_T *wp, tabpage_T *tp); 45 static int win_unlisted(win_T *wp); 46 static void win_append(win_T *after, win_T *wp); 47 static void frame_append(frame_T *after, frame_T *frp); 48 static void frame_insert(frame_T *before, frame_T *frp); 49 static void frame_remove(frame_T *frp); 50 static void win_goto_ver(int up, long count); 51 static void win_goto_hor(int left, long count); 52 static void frame_add_height(frame_T *frp, int n); 53 static void last_status_rec(frame_T *fr, int statusline); 54 55 static void make_snapshot_rec(frame_T *fr, frame_T **frp); 56 static void clear_snapshot(tabpage_T *tp, int idx); 57 static void clear_snapshot_rec(frame_T *fr); 58 static int check_snapshot_rec(frame_T *sn, frame_T *fr); 59 static win_T *restore_snapshot_rec(frame_T *sn, frame_T *fr); 60 61 static int frame_check_height(frame_T *topfrp, int height); 62 static int frame_check_width(frame_T *topfrp, int width); 63 64 static win_T *win_alloc(win_T *after, int hidden); 65 66 #define NOWIN (win_T *)-1 // non-existing window 67 68 #define ROWS_AVAIL (Rows - p_ch - tabline_height()) 69 70 static char *m_onlyone = N_("Already only one window"); 71 72 // When non-zero splitting a window is forbidden. Used to avoid that nasty 73 // autocommands mess up the window structure. 74 static int split_disallowed = 0; 75 76 // #define WIN_DEBUG 77 #ifdef WIN_DEBUG 78 /* 79 * Call this method to log the current window layout. 80 */ 81 static void 82 log_frame_layout(frame_T *frame) 83 { 84 ch_log(NULL, "layout %s, wi: %d, he: %d, wwi: %d, whe: %d, id: %d", 85 frame->fr_layout == FR_LEAF ? "LEAF" 86 : frame->fr_layout == FR_ROW ? "ROW" : "COL", 87 frame->fr_width, 88 frame->fr_height, 89 frame->fr_win == NULL ? -1 : frame->fr_win->w_width, 90 frame->fr_win == NULL ? -1 : frame->fr_win->w_height, 91 frame->fr_win == NULL ? -1 : frame->fr_win->w_id); 92 if (frame->fr_child != NULL) 93 { 94 ch_log(NULL, "children"); 95 log_frame_layout(frame->fr_child); 96 if (frame->fr_next != NULL) 97 ch_log(NULL, "END of children"); 98 } 99 if (frame->fr_next != NULL) 100 log_frame_layout(frame->fr_next); 101 } 102 #endif 103 104 /* 105 * All CTRL-W window commands are handled here, called from normal_cmd(). 106 */ 107 void 108 do_window( 109 int nchar, 110 long Prenum, 111 int xchar) // extra char from ":wincmd gx" or NUL 112 { 113 long Prenum1; 114 win_T *wp; 115 #if defined(FEAT_SEARCHPATH) || defined(FEAT_FIND_ID) 116 char_u *ptr; 117 linenr_T lnum = -1; 118 #endif 119 #ifdef FEAT_FIND_ID 120 int type = FIND_DEFINE; 121 int len; 122 #endif 123 char_u cbuf[40]; 124 125 if (ERROR_IF_ANY_POPUP_WINDOW) 126 return; 127 128 #ifdef FEAT_CMDWIN 129 # define CHECK_CMDWIN \ 130 do { \ 131 if (cmdwin_type != 0) \ 132 { \ 133 emsg(_(e_cmdwin)); \ 134 return; \ 135 } \ 136 } while (0) 137 #else 138 # define CHECK_CMDWIN do { /**/ } while (0) 139 #endif 140 141 Prenum1 = Prenum == 0 ? 1 : Prenum; 142 143 switch (nchar) 144 { 145 // split current window in two parts, horizontally 146 case 'S': 147 case Ctrl_S: 148 case 's': 149 CHECK_CMDWIN; 150 reset_VIsual_and_resel(); // stop Visual mode 151 #ifdef FEAT_QUICKFIX 152 // When splitting the quickfix window open a new buffer in it, 153 // don't replicate the quickfix buffer. 154 if (bt_quickfix(curbuf)) 155 goto newwindow; 156 #endif 157 #ifdef FEAT_GUI 158 need_mouse_correct = TRUE; 159 #endif 160 (void)win_split((int)Prenum, 0); 161 break; 162 163 // split current window in two parts, vertically 164 case Ctrl_V: 165 case 'v': 166 CHECK_CMDWIN; 167 reset_VIsual_and_resel(); // stop Visual mode 168 #ifdef FEAT_QUICKFIX 169 // When splitting the quickfix window open a new buffer in it, 170 // don't replicate the quickfix buffer. 171 if (bt_quickfix(curbuf)) 172 goto newwindow; 173 #endif 174 #ifdef FEAT_GUI 175 need_mouse_correct = TRUE; 176 #endif 177 (void)win_split((int)Prenum, WSP_VERT); 178 break; 179 180 // split current window and edit alternate file 181 case Ctrl_HAT: 182 case '^': 183 CHECK_CMDWIN; 184 reset_VIsual_and_resel(); // stop Visual mode 185 186 if (buflist_findnr(Prenum == 0 187 ? curwin->w_alt_fnum : Prenum) == NULL) 188 { 189 if (Prenum == 0) 190 emsg(_(e_noalt)); 191 else 192 semsg(_("E92: Buffer %ld not found"), Prenum); 193 break; 194 } 195 196 if (!curbuf_locked() && win_split(0, 0) == OK) 197 (void)buflist_getfile( 198 Prenum == 0 ? curwin->w_alt_fnum : Prenum, 199 (linenr_T)0, GETF_ALT, FALSE); 200 break; 201 202 // open new window 203 case Ctrl_N: 204 case 'n': 205 CHECK_CMDWIN; 206 reset_VIsual_and_resel(); // stop Visual mode 207 #ifdef FEAT_QUICKFIX 208 newwindow: 209 #endif 210 if (Prenum) 211 // window height 212 vim_snprintf((char *)cbuf, sizeof(cbuf) - 5, "%ld", Prenum); 213 else 214 cbuf[0] = NUL; 215 #if defined(FEAT_QUICKFIX) 216 if (nchar == 'v' || nchar == Ctrl_V) 217 STRCAT(cbuf, "v"); 218 #endif 219 STRCAT(cbuf, "new"); 220 do_cmdline_cmd(cbuf); 221 break; 222 223 // quit current window 224 case Ctrl_Q: 225 case 'q': 226 reset_VIsual_and_resel(); // stop Visual mode 227 cmd_with_count("quit", cbuf, sizeof(cbuf), Prenum); 228 do_cmdline_cmd(cbuf); 229 break; 230 231 // close current window 232 case Ctrl_C: 233 case 'c': 234 reset_VIsual_and_resel(); // stop Visual mode 235 cmd_with_count("close", cbuf, sizeof(cbuf), Prenum); 236 do_cmdline_cmd(cbuf); 237 break; 238 239 #if defined(FEAT_QUICKFIX) 240 // close preview window 241 case Ctrl_Z: 242 case 'z': 243 CHECK_CMDWIN; 244 reset_VIsual_and_resel(); // stop Visual mode 245 do_cmdline_cmd((char_u *)"pclose"); 246 break; 247 248 // cursor to preview window 249 case 'P': 250 FOR_ALL_WINDOWS(wp) 251 if (wp->w_p_pvw) 252 break; 253 if (wp == NULL) 254 emsg(_("E441: There is no preview window")); 255 else 256 win_goto(wp); 257 break; 258 #endif 259 260 // close all but current window 261 case Ctrl_O: 262 case 'o': 263 CHECK_CMDWIN; 264 reset_VIsual_and_resel(); // stop Visual mode 265 cmd_with_count("only", cbuf, sizeof(cbuf), Prenum); 266 do_cmdline_cmd(cbuf); 267 break; 268 269 // cursor to next window with wrap around 270 case Ctrl_W: 271 case 'w': 272 // cursor to previous window with wrap around 273 case 'W': 274 CHECK_CMDWIN; 275 if (ONE_WINDOW && Prenum != 1) // just one window 276 beep_flush(); 277 else 278 { 279 if (Prenum) // go to specified window 280 { 281 for (wp = firstwin; --Prenum > 0; ) 282 { 283 if (wp->w_next == NULL) 284 break; 285 else 286 wp = wp->w_next; 287 } 288 } 289 else 290 { 291 if (nchar == 'W') // go to previous window 292 { 293 wp = curwin->w_prev; 294 if (wp == NULL) 295 wp = lastwin; // wrap around 296 } 297 else // go to next window 298 { 299 wp = curwin->w_next; 300 if (wp == NULL) 301 wp = firstwin; // wrap around 302 } 303 } 304 win_goto(wp); 305 } 306 break; 307 308 // cursor to window below 309 case 'j': 310 case K_DOWN: 311 case Ctrl_J: 312 CHECK_CMDWIN; 313 win_goto_ver(FALSE, Prenum1); 314 break; 315 316 // cursor to window above 317 case 'k': 318 case K_UP: 319 case Ctrl_K: 320 CHECK_CMDWIN; 321 win_goto_ver(TRUE, Prenum1); 322 break; 323 324 // cursor to left window 325 case 'h': 326 case K_LEFT: 327 case Ctrl_H: 328 case K_BS: 329 CHECK_CMDWIN; 330 win_goto_hor(TRUE, Prenum1); 331 break; 332 333 // cursor to right window 334 case 'l': 335 case K_RIGHT: 336 case Ctrl_L: 337 CHECK_CMDWIN; 338 win_goto_hor(FALSE, Prenum1); 339 break; 340 341 // move window to new tab page 342 case 'T': 343 if (one_window()) 344 msg(_(m_onlyone)); 345 else 346 { 347 tabpage_T *oldtab = curtab; 348 tabpage_T *newtab; 349 350 // First create a new tab with the window, then go back to 351 // the old tab and close the window there. 352 wp = curwin; 353 if (win_new_tabpage((int)Prenum) == OK 354 && valid_tabpage(oldtab)) 355 { 356 newtab = curtab; 357 goto_tabpage_tp(oldtab, TRUE, TRUE); 358 if (curwin == wp) 359 win_close(curwin, FALSE); 360 if (valid_tabpage(newtab)) 361 goto_tabpage_tp(newtab, TRUE, TRUE); 362 } 363 } 364 break; 365 366 // cursor to top-left window 367 case 't': 368 case Ctrl_T: 369 win_goto(firstwin); 370 break; 371 372 // cursor to bottom-right window 373 case 'b': 374 case Ctrl_B: 375 win_goto(lastwin); 376 break; 377 378 // cursor to last accessed (previous) window 379 case 'p': 380 case Ctrl_P: 381 if (!win_valid(prevwin)) 382 beep_flush(); 383 else 384 win_goto(prevwin); 385 break; 386 387 // exchange current and next window 388 case 'x': 389 case Ctrl_X: 390 CHECK_CMDWIN; 391 win_exchange(Prenum); 392 break; 393 394 // rotate windows downwards 395 case Ctrl_R: 396 case 'r': 397 CHECK_CMDWIN; 398 reset_VIsual_and_resel(); // stop Visual mode 399 win_rotate(FALSE, (int)Prenum1); // downwards 400 break; 401 402 // rotate windows upwards 403 case 'R': 404 CHECK_CMDWIN; 405 reset_VIsual_and_resel(); // stop Visual mode 406 win_rotate(TRUE, (int)Prenum1); // upwards 407 break; 408 409 // move window to the very top/bottom/left/right 410 case 'K': 411 case 'J': 412 case 'H': 413 case 'L': 414 CHECK_CMDWIN; 415 win_totop((int)Prenum, 416 ((nchar == 'H' || nchar == 'L') ? WSP_VERT : 0) 417 | ((nchar == 'H' || nchar == 'K') ? WSP_TOP : WSP_BOT)); 418 break; 419 420 // make all windows the same height 421 case '=': 422 #ifdef FEAT_GUI 423 need_mouse_correct = TRUE; 424 #endif 425 win_equal(NULL, FALSE, 'b'); 426 break; 427 428 // increase current window height 429 case '+': 430 #ifdef FEAT_GUI 431 need_mouse_correct = TRUE; 432 #endif 433 win_setheight(curwin->w_height + (int)Prenum1); 434 break; 435 436 // decrease current window height 437 case '-': 438 #ifdef FEAT_GUI 439 need_mouse_correct = TRUE; 440 #endif 441 win_setheight(curwin->w_height - (int)Prenum1); 442 break; 443 444 // set current window height 445 case Ctrl__: 446 case '_': 447 #ifdef FEAT_GUI 448 need_mouse_correct = TRUE; 449 #endif 450 win_setheight(Prenum ? (int)Prenum : 9999); 451 break; 452 453 // increase current window width 454 case '>': 455 #ifdef FEAT_GUI 456 need_mouse_correct = TRUE; 457 #endif 458 win_setwidth(curwin->w_width + (int)Prenum1); 459 break; 460 461 // decrease current window width 462 case '<': 463 #ifdef FEAT_GUI 464 need_mouse_correct = TRUE; 465 #endif 466 win_setwidth(curwin->w_width - (int)Prenum1); 467 break; 468 469 // set current window width 470 case '|': 471 #ifdef FEAT_GUI 472 need_mouse_correct = TRUE; 473 #endif 474 win_setwidth(Prenum != 0 ? (int)Prenum : 9999); 475 break; 476 477 // jump to tag and split window if tag exists (in preview window) 478 #if defined(FEAT_QUICKFIX) 479 case '}': 480 CHECK_CMDWIN; 481 if (Prenum) 482 g_do_tagpreview = Prenum; 483 else 484 g_do_tagpreview = p_pvh; 485 #endif 486 // FALLTHROUGH 487 case ']': 488 case Ctrl_RSB: 489 CHECK_CMDWIN; 490 // keep Visual mode, can select words to use as a tag 491 if (Prenum) 492 postponed_split = Prenum; 493 else 494 postponed_split = -1; 495 #ifdef FEAT_QUICKFIX 496 if (nchar != '}') 497 g_do_tagpreview = 0; 498 #endif 499 500 // Execute the command right here, required when "wincmd ]" 501 // was used in a function. 502 do_nv_ident(Ctrl_RSB, NUL); 503 break; 504 505 #ifdef FEAT_SEARCHPATH 506 // edit file name under cursor in a new window 507 case 'f': 508 case 'F': 509 case Ctrl_F: 510 wingotofile: 511 CHECK_CMDWIN; 512 513 ptr = grab_file_name(Prenum1, &lnum); 514 if (ptr != NULL) 515 { 516 tabpage_T *oldtab = curtab; 517 win_T *oldwin = curwin; 518 # ifdef FEAT_GUI 519 need_mouse_correct = TRUE; 520 # endif 521 setpcmark(); 522 if (win_split(0, 0) == OK) 523 { 524 RESET_BINDING(curwin); 525 if (do_ecmd(0, ptr, NULL, NULL, ECMD_LASTL, 526 ECMD_HIDE, NULL) == FAIL) 527 { 528 // Failed to open the file, close the window 529 // opened for it. 530 win_close(curwin, FALSE); 531 goto_tabpage_win(oldtab, oldwin); 532 } 533 else if (nchar == 'F' && lnum >= 0) 534 { 535 curwin->w_cursor.lnum = lnum; 536 check_cursor_lnum(); 537 beginline(BL_SOL | BL_FIX); 538 } 539 } 540 vim_free(ptr); 541 } 542 break; 543 #endif 544 545 #ifdef FEAT_FIND_ID 546 // Go to the first occurrence of the identifier under cursor along path in a 547 // new window -- webb 548 case 'i': // Go to any match 549 case Ctrl_I: 550 type = FIND_ANY; 551 // FALLTHROUGH 552 case 'd': // Go to definition, using 'define' 553 case Ctrl_D: 554 CHECK_CMDWIN; 555 if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0) 556 break; 557 find_pattern_in_path(ptr, 0, len, TRUE, 558 Prenum == 0 ? TRUE : FALSE, type, 559 Prenum1, ACTION_SPLIT, (linenr_T)1, (linenr_T)MAXLNUM); 560 curwin->w_set_curswant = TRUE; 561 break; 562 #endif 563 564 // Quickfix window only: view the result under the cursor in a new split. 565 #if defined(FEAT_QUICKFIX) 566 case K_KENTER: 567 case CAR: 568 if (bt_quickfix(curbuf)) 569 qf_view_result(TRUE); 570 break; 571 #endif 572 573 // CTRL-W g extended commands 574 case 'g': 575 case Ctrl_G: 576 CHECK_CMDWIN; 577 #ifdef USE_ON_FLY_SCROLL 578 dont_scroll = TRUE; // disallow scrolling here 579 #endif 580 ++no_mapping; 581 ++allow_keys; // no mapping for xchar, but allow key codes 582 if (xchar == NUL) 583 xchar = plain_vgetc(); 584 LANGMAP_ADJUST(xchar, TRUE); 585 --no_mapping; 586 --allow_keys; 587 #ifdef FEAT_CMDL_INFO 588 (void)add_to_showcmd(xchar); 589 #endif 590 switch (xchar) 591 { 592 #if defined(FEAT_QUICKFIX) 593 case '}': 594 xchar = Ctrl_RSB; 595 if (Prenum) 596 g_do_tagpreview = Prenum; 597 else 598 g_do_tagpreview = p_pvh; 599 #endif 600 // FALLTHROUGH 601 case ']': 602 case Ctrl_RSB: 603 // keep Visual mode, can select words to use as a tag 604 if (Prenum) 605 postponed_split = Prenum; 606 else 607 postponed_split = -1; 608 609 // Execute the command right here, required when 610 // "wincmd g}" was used in a function. 611 do_nv_ident('g', xchar); 612 break; 613 614 #ifdef FEAT_SEARCHPATH 615 case 'f': // CTRL-W gf: "gf" in a new tab page 616 case 'F': // CTRL-W gF: "gF" in a new tab page 617 cmdmod.tab = tabpage_index(curtab) + 1; 618 nchar = xchar; 619 goto wingotofile; 620 #endif 621 case 't': // CTRL-W gt: go to next tab page 622 goto_tabpage((int)Prenum); 623 break; 624 625 case 'T': // CTRL-W gT: go to previous tab page 626 goto_tabpage(-(int)Prenum1); 627 break; 628 629 default: 630 beep_flush(); 631 break; 632 } 633 break; 634 635 default: beep_flush(); 636 break; 637 } 638 } 639 640 /* 641 * Figure out the address type for ":wincmd". 642 */ 643 void 644 get_wincmd_addr_type(char_u *arg, exarg_T *eap) 645 { 646 switch (*arg) 647 { 648 case 'S': 649 case Ctrl_S: 650 case 's': 651 case Ctrl_N: 652 case 'n': 653 case 'j': 654 case Ctrl_J: 655 case 'k': 656 case Ctrl_K: 657 case 'T': 658 case Ctrl_R: 659 case 'r': 660 case 'R': 661 case 'K': 662 case 'J': 663 case '+': 664 case '-': 665 case Ctrl__: 666 case '_': 667 case '|': 668 case ']': 669 case Ctrl_RSB: 670 case 'g': 671 case Ctrl_G: 672 case Ctrl_V: 673 case 'v': 674 case 'h': 675 case Ctrl_H: 676 case 'l': 677 case Ctrl_L: 678 case 'H': 679 case 'L': 680 case '>': 681 case '<': 682 #if defined(FEAT_QUICKFIX) 683 case '}': 684 #endif 685 #ifdef FEAT_SEARCHPATH 686 case 'f': 687 case 'F': 688 case Ctrl_F: 689 #endif 690 #ifdef FEAT_FIND_ID 691 case 'i': 692 case Ctrl_I: 693 case 'd': 694 case Ctrl_D: 695 #endif 696 // window size or any count 697 eap->addr_type = ADDR_OTHER; 698 break; 699 700 case Ctrl_HAT: 701 case '^': 702 // buffer number 703 eap->addr_type = ADDR_BUFFERS; 704 break; 705 706 case Ctrl_Q: 707 case 'q': 708 case Ctrl_C: 709 case 'c': 710 case Ctrl_O: 711 case 'o': 712 case Ctrl_W: 713 case 'w': 714 case 'W': 715 case 'x': 716 case Ctrl_X: 717 // window number 718 eap->addr_type = ADDR_WINDOWS; 719 break; 720 721 #if defined(FEAT_QUICKFIX) 722 case Ctrl_Z: 723 case 'z': 724 case 'P': 725 #endif 726 case 't': 727 case Ctrl_T: 728 case 'b': 729 case Ctrl_B: 730 case 'p': 731 case Ctrl_P: 732 case '=': 733 case CAR: 734 // no count 735 eap->addr_type = ADDR_NONE; 736 break; 737 } 738 } 739 740 static void 741 cmd_with_count( 742 char *cmd, 743 char_u *bufp, 744 size_t bufsize, 745 long Prenum) 746 { 747 size_t len = STRLEN(cmd); 748 749 STRCPY(bufp, cmd); 750 if (Prenum > 0) 751 vim_snprintf((char *)bufp + len, bufsize - len, "%ld", Prenum); 752 } 753 754 /* 755 * If "split_disallowed" is set given an error and return FAIL. 756 * Otherwise return OK. 757 */ 758 static int 759 check_split_disallowed() 760 { 761 if (split_disallowed > 0) 762 { 763 emsg(_("E242: Can't split a window while closing another")); 764 return FAIL; 765 } 766 return OK; 767 } 768 769 /* 770 * split the current window, implements CTRL-W s and :split 771 * 772 * "size" is the height or width for the new window, 0 to use half of current 773 * height or width. 774 * 775 * "flags": 776 * WSP_ROOM: require enough room for new window 777 * WSP_VERT: vertical split. 778 * WSP_TOP: open window at the top-left of the shell (help window). 779 * WSP_BOT: open window at the bottom-right of the shell (quickfix window). 780 * WSP_HELP: creating the help window, keep layout snapshot 781 * 782 * return FAIL for failure, OK otherwise 783 */ 784 int 785 win_split(int size, int flags) 786 { 787 if (ERROR_IF_ANY_POPUP_WINDOW) 788 return FAIL; 789 790 // When the ":tab" modifier was used open a new tab page instead. 791 if (may_open_tabpage() == OK) 792 return OK; 793 794 // Add flags from ":vertical", ":topleft" and ":botright". 795 flags |= cmdmod.split; 796 if ((flags & WSP_TOP) && (flags & WSP_BOT)) 797 { 798 emsg(_("E442: Can't split topleft and botright at the same time")); 799 return FAIL; 800 } 801 if (check_split_disallowed() == FAIL) 802 return FAIL; 803 804 // When creating the help window make a snapshot of the window layout. 805 // Otherwise clear the snapshot, it's now invalid. 806 if (flags & WSP_HELP) 807 make_snapshot(SNAP_HELP_IDX); 808 else 809 clear_snapshot(curtab, SNAP_HELP_IDX); 810 811 return win_split_ins(size, flags, NULL, 0); 812 } 813 814 /* 815 * When "new_wp" is NULL: split the current window in two. 816 * When "new_wp" is not NULL: insert this window at the far 817 * top/left/right/bottom. 818 * return FAIL for failure, OK otherwise 819 */ 820 int 821 win_split_ins( 822 int size, 823 int flags, 824 win_T *new_wp, 825 int dir) 826 { 827 win_T *wp = new_wp; 828 win_T *oldwin; 829 int new_size = size; 830 int i; 831 int need_status = 0; 832 int do_equal = FALSE; 833 int needed; 834 int available; 835 int oldwin_height = 0; 836 int layout; 837 frame_T *frp, *curfrp, *frp2, *prevfrp; 838 int before; 839 int minheight; 840 int wmh1; 841 int did_set_fraction = FALSE; 842 843 if (flags & WSP_TOP) 844 oldwin = firstwin; 845 else if (flags & WSP_BOT) 846 oldwin = lastwin; 847 else 848 oldwin = curwin; 849 850 // add a status line when p_ls == 1 and splitting the first window 851 if (ONE_WINDOW && p_ls == 1 && oldwin->w_status_height == 0) 852 { 853 if (VISIBLE_HEIGHT(oldwin) <= p_wmh && new_wp == NULL) 854 { 855 emsg(_(e_noroom)); 856 return FAIL; 857 } 858 need_status = STATUS_HEIGHT; 859 } 860 861 #ifdef FEAT_GUI 862 // May be needed for the scrollbars that are going to change. 863 if (gui.in_use) 864 out_flush(); 865 #endif 866 867 if (flags & WSP_VERT) 868 { 869 int wmw1; 870 int minwidth; 871 872 layout = FR_ROW; 873 874 /* 875 * Check if we are able to split the current window and compute its 876 * width. 877 */ 878 // Current window requires at least 1 space. 879 wmw1 = (p_wmw == 0 ? 1 : p_wmw); 880 needed = wmw1 + 1; 881 if (flags & WSP_ROOM) 882 needed += p_wiw - wmw1; 883 if (flags & (WSP_BOT | WSP_TOP)) 884 { 885 minwidth = frame_minwidth(topframe, NOWIN); 886 available = topframe->fr_width; 887 needed += minwidth; 888 } 889 else if (p_ea) 890 { 891 minwidth = frame_minwidth(oldwin->w_frame, NOWIN); 892 prevfrp = oldwin->w_frame; 893 for (frp = oldwin->w_frame->fr_parent; frp != NULL; 894 frp = frp->fr_parent) 895 { 896 if (frp->fr_layout == FR_ROW) 897 FOR_ALL_FRAMES(frp2, frp->fr_child) 898 if (frp2 != prevfrp) 899 minwidth += frame_minwidth(frp2, NOWIN); 900 prevfrp = frp; 901 } 902 available = topframe->fr_width; 903 needed += minwidth; 904 } 905 else 906 { 907 minwidth = frame_minwidth(oldwin->w_frame, NOWIN); 908 available = oldwin->w_frame->fr_width; 909 needed += minwidth; 910 } 911 if (available < needed && new_wp == NULL) 912 { 913 emsg(_(e_noroom)); 914 return FAIL; 915 } 916 if (new_size == 0) 917 new_size = oldwin->w_width / 2; 918 if (new_size > available - minwidth - 1) 919 new_size = available - minwidth - 1; 920 if (new_size < wmw1) 921 new_size = wmw1; 922 923 // if it doesn't fit in the current window, need win_equal() 924 if (oldwin->w_width - new_size - 1 < p_wmw) 925 do_equal = TRUE; 926 927 // We don't like to take lines for the new window from a 928 // 'winfixwidth' window. Take them from a window to the left or right 929 // instead, if possible. Add one for the separator. 930 if (oldwin->w_p_wfw) 931 win_setwidth_win(oldwin->w_width + new_size + 1, oldwin); 932 933 // Only make all windows the same width if one of them (except oldwin) 934 // is wider than one of the split windows. 935 if (!do_equal && p_ea && size == 0 && *p_ead != 'v' 936 && oldwin->w_frame->fr_parent != NULL) 937 { 938 frp = oldwin->w_frame->fr_parent->fr_child; 939 while (frp != NULL) 940 { 941 if (frp->fr_win != oldwin && frp->fr_win != NULL 942 && (frp->fr_win->w_width > new_size 943 || frp->fr_win->w_width > oldwin->w_width 944 - new_size - 1)) 945 { 946 do_equal = TRUE; 947 break; 948 } 949 frp = frp->fr_next; 950 } 951 } 952 } 953 else 954 { 955 layout = FR_COL; 956 957 /* 958 * Check if we are able to split the current window and compute its 959 * height. 960 */ 961 // Current window requires at least 1 space. 962 wmh1 = (p_wmh == 0 ? 1 : p_wmh) + WINBAR_HEIGHT(curwin); 963 needed = wmh1 + STATUS_HEIGHT; 964 if (flags & WSP_ROOM) 965 needed += p_wh - wmh1; 966 if (flags & (WSP_BOT | WSP_TOP)) 967 { 968 minheight = frame_minheight(topframe, NOWIN) + need_status; 969 available = topframe->fr_height; 970 needed += minheight; 971 } 972 else if (p_ea) 973 { 974 minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; 975 prevfrp = oldwin->w_frame; 976 for (frp = oldwin->w_frame->fr_parent; frp != NULL; 977 frp = frp->fr_parent) 978 { 979 if (frp->fr_layout == FR_COL) 980 FOR_ALL_FRAMES(frp2, frp->fr_child) 981 if (frp2 != prevfrp) 982 minheight += frame_minheight(frp2, NOWIN); 983 prevfrp = frp; 984 } 985 available = topframe->fr_height; 986 needed += minheight; 987 } 988 else 989 { 990 minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; 991 available = oldwin->w_frame->fr_height; 992 needed += minheight; 993 } 994 if (available < needed && new_wp == NULL) 995 { 996 emsg(_(e_noroom)); 997 return FAIL; 998 } 999 oldwin_height = oldwin->w_height; 1000 if (need_status) 1001 { 1002 oldwin->w_status_height = STATUS_HEIGHT; 1003 oldwin_height -= STATUS_HEIGHT; 1004 } 1005 if (new_size == 0) 1006 new_size = oldwin_height / 2; 1007 if (new_size > available - minheight - STATUS_HEIGHT) 1008 new_size = available - minheight - STATUS_HEIGHT; 1009 if (new_size < wmh1) 1010 new_size = wmh1; 1011 1012 // if it doesn't fit in the current window, need win_equal() 1013 if (oldwin_height - new_size - STATUS_HEIGHT < p_wmh) 1014 do_equal = TRUE; 1015 1016 // We don't like to take lines for the new window from a 1017 // 'winfixheight' window. Take them from a window above or below 1018 // instead, if possible. 1019 if (oldwin->w_p_wfh) 1020 { 1021 // Set w_fraction now so that the cursor keeps the same relative 1022 // vertical position using the old height. 1023 set_fraction(oldwin); 1024 did_set_fraction = TRUE; 1025 1026 win_setheight_win(oldwin->w_height + new_size + STATUS_HEIGHT, 1027 oldwin); 1028 oldwin_height = oldwin->w_height; 1029 if (need_status) 1030 oldwin_height -= STATUS_HEIGHT; 1031 } 1032 1033 // Only make all windows the same height if one of them (except oldwin) 1034 // is higher than one of the split windows. 1035 if (!do_equal && p_ea && size == 0 && *p_ead != 'h' 1036 && oldwin->w_frame->fr_parent != NULL) 1037 { 1038 frp = oldwin->w_frame->fr_parent->fr_child; 1039 while (frp != NULL) 1040 { 1041 if (frp->fr_win != oldwin && frp->fr_win != NULL 1042 && (frp->fr_win->w_height > new_size 1043 || frp->fr_win->w_height > oldwin_height - new_size 1044 - STATUS_HEIGHT)) 1045 { 1046 do_equal = TRUE; 1047 break; 1048 } 1049 frp = frp->fr_next; 1050 } 1051 } 1052 } 1053 1054 /* 1055 * allocate new window structure and link it in the window list 1056 */ 1057 if ((flags & WSP_TOP) == 0 1058 && ((flags & WSP_BOT) 1059 || (flags & WSP_BELOW) 1060 || (!(flags & WSP_ABOVE) 1061 && ( (flags & WSP_VERT) ? p_spr : p_sb)))) 1062 { 1063 // new window below/right of current one 1064 if (new_wp == NULL) 1065 wp = win_alloc(oldwin, FALSE); 1066 else 1067 win_append(oldwin, wp); 1068 } 1069 else 1070 { 1071 if (new_wp == NULL) 1072 wp = win_alloc(oldwin->w_prev, FALSE); 1073 else 1074 win_append(oldwin->w_prev, wp); 1075 } 1076 1077 if (new_wp == NULL) 1078 { 1079 if (wp == NULL) 1080 return FAIL; 1081 1082 new_frame(wp); 1083 if (wp->w_frame == NULL) 1084 { 1085 win_free(wp, NULL); 1086 return FAIL; 1087 } 1088 1089 // make the contents of the new window the same as the current one 1090 win_init(wp, curwin, flags); 1091 } 1092 1093 /* 1094 * Reorganise the tree of frames to insert the new window. 1095 */ 1096 if (flags & (WSP_TOP | WSP_BOT)) 1097 { 1098 if ((topframe->fr_layout == FR_COL && (flags & WSP_VERT) == 0) 1099 || (topframe->fr_layout == FR_ROW && (flags & WSP_VERT) != 0)) 1100 { 1101 curfrp = topframe->fr_child; 1102 if (flags & WSP_BOT) 1103 while (curfrp->fr_next != NULL) 1104 curfrp = curfrp->fr_next; 1105 } 1106 else 1107 curfrp = topframe; 1108 before = (flags & WSP_TOP); 1109 } 1110 else 1111 { 1112 curfrp = oldwin->w_frame; 1113 if (flags & WSP_BELOW) 1114 before = FALSE; 1115 else if (flags & WSP_ABOVE) 1116 before = TRUE; 1117 else if (flags & WSP_VERT) 1118 before = !p_spr; 1119 else 1120 before = !p_sb; 1121 } 1122 if (curfrp->fr_parent == NULL || curfrp->fr_parent->fr_layout != layout) 1123 { 1124 // Need to create a new frame in the tree to make a branch. 1125 frp = ALLOC_CLEAR_ONE(frame_T); 1126 *frp = *curfrp; 1127 curfrp->fr_layout = layout; 1128 frp->fr_parent = curfrp; 1129 frp->fr_next = NULL; 1130 frp->fr_prev = NULL; 1131 curfrp->fr_child = frp; 1132 curfrp->fr_win = NULL; 1133 curfrp = frp; 1134 if (frp->fr_win != NULL) 1135 oldwin->w_frame = frp; 1136 else 1137 FOR_ALL_FRAMES(frp, frp->fr_child) 1138 frp->fr_parent = curfrp; 1139 } 1140 1141 if (new_wp == NULL) 1142 frp = wp->w_frame; 1143 else 1144 frp = new_wp->w_frame; 1145 frp->fr_parent = curfrp->fr_parent; 1146 1147 // Insert the new frame at the right place in the frame list. 1148 if (before) 1149 frame_insert(curfrp, frp); 1150 else 1151 frame_append(curfrp, frp); 1152 1153 // Set w_fraction now so that the cursor keeps the same relative 1154 // vertical position. 1155 if (!did_set_fraction) 1156 set_fraction(oldwin); 1157 wp->w_fraction = oldwin->w_fraction; 1158 1159 if (flags & WSP_VERT) 1160 { 1161 wp->w_p_scr = curwin->w_p_scr; 1162 1163 if (need_status) 1164 { 1165 win_new_height(oldwin, oldwin->w_height - 1); 1166 oldwin->w_status_height = need_status; 1167 } 1168 if (flags & (WSP_TOP | WSP_BOT)) 1169 { 1170 // set height and row of new window to full height 1171 wp->w_winrow = tabline_height(); 1172 win_new_height(wp, curfrp->fr_height - (p_ls > 0) 1173 - WINBAR_HEIGHT(wp)); 1174 wp->w_status_height = (p_ls > 0); 1175 } 1176 else 1177 { 1178 // height and row of new window is same as current window 1179 wp->w_winrow = oldwin->w_winrow; 1180 win_new_height(wp, VISIBLE_HEIGHT(oldwin)); 1181 wp->w_status_height = oldwin->w_status_height; 1182 } 1183 frp->fr_height = curfrp->fr_height; 1184 1185 // "new_size" of the current window goes to the new window, use 1186 // one column for the vertical separator 1187 win_new_width(wp, new_size); 1188 if (before) 1189 wp->w_vsep_width = 1; 1190 else 1191 { 1192 wp->w_vsep_width = oldwin->w_vsep_width; 1193 oldwin->w_vsep_width = 1; 1194 } 1195 if (flags & (WSP_TOP | WSP_BOT)) 1196 { 1197 if (flags & WSP_BOT) 1198 frame_add_vsep(curfrp); 1199 // Set width of neighbor frame 1200 frame_new_width(curfrp, curfrp->fr_width 1201 - (new_size + ((flags & WSP_TOP) != 0)), flags & WSP_TOP, 1202 FALSE); 1203 } 1204 else 1205 win_new_width(oldwin, oldwin->w_width - (new_size + 1)); 1206 if (before) // new window left of current one 1207 { 1208 wp->w_wincol = oldwin->w_wincol; 1209 oldwin->w_wincol += new_size + 1; 1210 } 1211 else // new window right of current one 1212 wp->w_wincol = oldwin->w_wincol + oldwin->w_width + 1; 1213 frame_fix_width(oldwin); 1214 frame_fix_width(wp); 1215 } 1216 else 1217 { 1218 // width and column of new window is same as current window 1219 if (flags & (WSP_TOP | WSP_BOT)) 1220 { 1221 wp->w_wincol = 0; 1222 win_new_width(wp, Columns); 1223 wp->w_vsep_width = 0; 1224 } 1225 else 1226 { 1227 wp->w_wincol = oldwin->w_wincol; 1228 win_new_width(wp, oldwin->w_width); 1229 wp->w_vsep_width = oldwin->w_vsep_width; 1230 } 1231 frp->fr_width = curfrp->fr_width; 1232 1233 // "new_size" of the current window goes to the new window, use 1234 // one row for the status line 1235 win_new_height(wp, new_size); 1236 if (flags & (WSP_TOP | WSP_BOT)) 1237 { 1238 int new_fr_height = curfrp->fr_height - new_size 1239 + WINBAR_HEIGHT(wp) ; 1240 1241 if (!((flags & WSP_BOT) && p_ls == 0)) 1242 new_fr_height -= STATUS_HEIGHT; 1243 frame_new_height(curfrp, new_fr_height, flags & WSP_TOP, FALSE); 1244 } 1245 else 1246 win_new_height(oldwin, oldwin_height - (new_size + STATUS_HEIGHT)); 1247 if (before) // new window above current one 1248 { 1249 wp->w_winrow = oldwin->w_winrow; 1250 wp->w_status_height = STATUS_HEIGHT; 1251 oldwin->w_winrow += wp->w_height + STATUS_HEIGHT; 1252 } 1253 else // new window below current one 1254 { 1255 wp->w_winrow = oldwin->w_winrow + VISIBLE_HEIGHT(oldwin) 1256 + STATUS_HEIGHT; 1257 wp->w_status_height = oldwin->w_status_height; 1258 if (!(flags & WSP_BOT)) 1259 oldwin->w_status_height = STATUS_HEIGHT; 1260 } 1261 if (flags & WSP_BOT) 1262 frame_add_statusline(curfrp); 1263 frame_fix_height(wp); 1264 frame_fix_height(oldwin); 1265 } 1266 1267 if (flags & (WSP_TOP | WSP_BOT)) 1268 (void)win_comp_pos(); 1269 1270 /* 1271 * Both windows need redrawing 1272 */ 1273 redraw_win_later(wp, NOT_VALID); 1274 wp->w_redr_status = TRUE; 1275 redraw_win_later(oldwin, NOT_VALID); 1276 oldwin->w_redr_status = TRUE; 1277 1278 if (need_status) 1279 { 1280 msg_row = Rows - 1; 1281 msg_col = sc_col; 1282 msg_clr_eos_force(); // Old command/ruler may still be there 1283 comp_col(); 1284 msg_row = Rows - 1; 1285 msg_col = 0; // put position back at start of line 1286 } 1287 1288 /* 1289 * equalize the window sizes. 1290 */ 1291 if (do_equal || dir != 0) 1292 win_equal(wp, TRUE, 1293 (flags & WSP_VERT) ? (dir == 'v' ? 'b' : 'h') 1294 : dir == 'h' ? 'b' : 'v'); 1295 1296 // Don't change the window height/width to 'winheight' / 'winwidth' if a 1297 // size was given. 1298 if (flags & WSP_VERT) 1299 { 1300 i = p_wiw; 1301 if (size != 0) 1302 p_wiw = size; 1303 1304 # ifdef FEAT_GUI 1305 // When 'guioptions' includes 'L' or 'R' may have to add scrollbars. 1306 if (gui.in_use) 1307 gui_init_which_components(NULL); 1308 # endif 1309 } 1310 else 1311 { 1312 i = p_wh; 1313 if (size != 0) 1314 p_wh = size; 1315 } 1316 1317 #ifdef FEAT_JUMPLIST 1318 // Keep same changelist position in new window. 1319 wp->w_changelistidx = oldwin->w_changelistidx; 1320 #endif 1321 1322 /* 1323 * make the new window the current window 1324 */ 1325 win_enter_ext(wp, FALSE, FALSE, TRUE, TRUE, TRUE); 1326 if (flags & WSP_VERT) 1327 p_wiw = i; 1328 else 1329 p_wh = i; 1330 1331 return OK; 1332 } 1333 1334 1335 /* 1336 * Initialize window "newp" from window "oldp". 1337 * Used when splitting a window and when creating a new tab page. 1338 * The windows will both edit the same buffer. 1339 * WSP_NEWLOC may be specified in flags to prevent the location list from 1340 * being copied. 1341 */ 1342 static void 1343 win_init(win_T *newp, win_T *oldp, int flags UNUSED) 1344 { 1345 int i; 1346 1347 newp->w_buffer = oldp->w_buffer; 1348 #ifdef FEAT_SYN_HL 1349 newp->w_s = &(oldp->w_buffer->b_s); 1350 #endif 1351 oldp->w_buffer->b_nwindows++; 1352 newp->w_cursor = oldp->w_cursor; 1353 newp->w_valid = 0; 1354 newp->w_curswant = oldp->w_curswant; 1355 newp->w_set_curswant = oldp->w_set_curswant; 1356 newp->w_topline = oldp->w_topline; 1357 #ifdef FEAT_DIFF 1358 newp->w_topfill = oldp->w_topfill; 1359 #endif 1360 newp->w_leftcol = oldp->w_leftcol; 1361 newp->w_pcmark = oldp->w_pcmark; 1362 newp->w_prev_pcmark = oldp->w_prev_pcmark; 1363 newp->w_alt_fnum = oldp->w_alt_fnum; 1364 newp->w_wrow = oldp->w_wrow; 1365 newp->w_fraction = oldp->w_fraction; 1366 newp->w_prev_fraction_row = oldp->w_prev_fraction_row; 1367 #ifdef FEAT_JUMPLIST 1368 copy_jumplist(oldp, newp); 1369 #endif 1370 #ifdef FEAT_QUICKFIX 1371 if (flags & WSP_NEWLOC) 1372 { 1373 // Don't copy the location list. 1374 newp->w_llist = NULL; 1375 newp->w_llist_ref = NULL; 1376 } 1377 else 1378 copy_loclist_stack(oldp, newp); 1379 #endif 1380 newp->w_localdir = (oldp->w_localdir == NULL) 1381 ? NULL : vim_strsave(oldp->w_localdir); 1382 1383 // copy tagstack and folds 1384 for (i = 0; i < oldp->w_tagstacklen; i++) 1385 { 1386 taggy_T *tag = &newp->w_tagstack[i]; 1387 *tag = oldp->w_tagstack[i]; 1388 if (tag->tagname != NULL) 1389 tag->tagname = vim_strsave(tag->tagname); 1390 if (tag->user_data != NULL) 1391 tag->user_data = vim_strsave(tag->user_data); 1392 } 1393 newp->w_tagstackidx = oldp->w_tagstackidx; 1394 newp->w_tagstacklen = oldp->w_tagstacklen; 1395 #ifdef FEAT_FOLDING 1396 copyFoldingState(oldp, newp); 1397 #endif 1398 1399 win_init_some(newp, oldp); 1400 1401 #ifdef FEAT_SYN_HL 1402 check_colorcolumn(newp); 1403 #endif 1404 } 1405 1406 /* 1407 * Initialize window "newp" from window "old". 1408 * Only the essential things are copied. 1409 */ 1410 static void 1411 win_init_some(win_T *newp, win_T *oldp) 1412 { 1413 // Use the same argument list. 1414 newp->w_alist = oldp->w_alist; 1415 ++newp->w_alist->al_refcount; 1416 newp->w_arg_idx = oldp->w_arg_idx; 1417 1418 // copy options from existing window 1419 win_copy_options(oldp, newp); 1420 } 1421 1422 /* 1423 * Return TRUE if "win" is a global popup or a popup in the current tab page. 1424 */ 1425 int 1426 win_valid_popup(win_T *win UNUSED) 1427 { 1428 #ifdef FEAT_PROP_POPUP 1429 win_T *wp; 1430 1431 for (wp = first_popupwin; wp != NULL; wp = wp->w_next) 1432 if (wp == win) 1433 return TRUE; 1434 for (wp = curtab->tp_first_popupwin; wp != NULL; wp = wp->w_next) 1435 if (wp == win) 1436 return TRUE; 1437 #endif 1438 return FALSE; 1439 } 1440 1441 /* 1442 * Check if "win" is a pointer to an existing window in the current tab page. 1443 */ 1444 int 1445 win_valid(win_T *win) 1446 { 1447 win_T *wp; 1448 1449 if (win == NULL) 1450 return FALSE; 1451 FOR_ALL_WINDOWS(wp) 1452 if (wp == win) 1453 return TRUE; 1454 return win_valid_popup(win); 1455 } 1456 1457 /* 1458 * Check if "win" is a pointer to an existing window in any tab page. 1459 */ 1460 int 1461 win_valid_any_tab(win_T *win) 1462 { 1463 win_T *wp; 1464 tabpage_T *tp; 1465 1466 if (win == NULL) 1467 return FALSE; 1468 FOR_ALL_TABPAGES(tp) 1469 { 1470 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 1471 { 1472 if (wp == win) 1473 return TRUE; 1474 } 1475 #ifdef FEAT_PROP_POPUP 1476 for (wp = tp->tp_first_popupwin; wp != NULL; wp = wp->w_next) 1477 if (wp == win) 1478 return TRUE; 1479 #endif 1480 } 1481 return win_valid_popup(win); 1482 } 1483 1484 /* 1485 * Return the number of windows. 1486 */ 1487 int 1488 win_count(void) 1489 { 1490 win_T *wp; 1491 int count = 0; 1492 1493 FOR_ALL_WINDOWS(wp) 1494 ++count; 1495 return count; 1496 } 1497 1498 /* 1499 * Make "count" windows on the screen. 1500 * Return actual number of windows on the screen. 1501 * Must be called when there is just one window, filling the whole screen 1502 * (excluding the command line). 1503 */ 1504 int 1505 make_windows( 1506 int count, 1507 int vertical UNUSED) // split windows vertically if TRUE 1508 { 1509 int maxcount; 1510 int todo; 1511 1512 if (vertical) 1513 { 1514 // Each windows needs at least 'winminwidth' lines and a separator 1515 // column. 1516 maxcount = (curwin->w_width + curwin->w_vsep_width 1517 - (p_wiw - p_wmw)) / (p_wmw + 1); 1518 } 1519 else 1520 { 1521 // Each window needs at least 'winminheight' lines and a status line. 1522 maxcount = (VISIBLE_HEIGHT(curwin) + curwin->w_status_height 1523 - (p_wh - p_wmh)) / (p_wmh + STATUS_HEIGHT); 1524 } 1525 1526 if (maxcount < 2) 1527 maxcount = 2; 1528 if (count > maxcount) 1529 count = maxcount; 1530 1531 /* 1532 * add status line now, otherwise first window will be too big 1533 */ 1534 if (count > 1) 1535 last_status(TRUE); 1536 1537 /* 1538 * Don't execute autocommands while creating the windows. Must do that 1539 * when putting the buffers in the windows. 1540 */ 1541 block_autocmds(); 1542 1543 // todo is number of windows left to create 1544 for (todo = count - 1; todo > 0; --todo) 1545 if (vertical) 1546 { 1547 if (win_split(curwin->w_width - (curwin->w_width - todo) 1548 / (todo + 1) - 1, WSP_VERT | WSP_ABOVE) == FAIL) 1549 break; 1550 } 1551 else 1552 { 1553 if (win_split(curwin->w_height - (curwin->w_height - todo 1554 * STATUS_HEIGHT) / (todo + 1) 1555 - STATUS_HEIGHT, WSP_ABOVE) == FAIL) 1556 break; 1557 } 1558 1559 unblock_autocmds(); 1560 1561 // return actual number of windows 1562 return (count - todo); 1563 } 1564 1565 /* 1566 * Exchange current and next window 1567 */ 1568 static void 1569 win_exchange(long Prenum) 1570 { 1571 frame_T *frp; 1572 frame_T *frp2; 1573 win_T *wp; 1574 win_T *wp2; 1575 int temp; 1576 1577 if (ERROR_IF_ANY_POPUP_WINDOW) 1578 return; 1579 if (ONE_WINDOW) // just one window 1580 { 1581 beep_flush(); 1582 return; 1583 } 1584 1585 #ifdef FEAT_GUI 1586 need_mouse_correct = TRUE; 1587 #endif 1588 1589 /* 1590 * find window to exchange with 1591 */ 1592 if (Prenum) 1593 { 1594 frp = curwin->w_frame->fr_parent->fr_child; 1595 while (frp != NULL && --Prenum > 0) 1596 frp = frp->fr_next; 1597 } 1598 else if (curwin->w_frame->fr_next != NULL) // Swap with next 1599 frp = curwin->w_frame->fr_next; 1600 else // Swap last window in row/col with previous 1601 frp = curwin->w_frame->fr_prev; 1602 1603 // We can only exchange a window with another window, not with a frame 1604 // containing windows. 1605 if (frp == NULL || frp->fr_win == NULL || frp->fr_win == curwin) 1606 return; 1607 wp = frp->fr_win; 1608 1609 /* 1610 * 1. remove curwin from the list. Remember after which window it was in wp2 1611 * 2. insert curwin before wp in the list 1612 * if wp != wp2 1613 * 3. remove wp from the list 1614 * 4. insert wp after wp2 1615 * 5. exchange the status line height and vsep width. 1616 */ 1617 wp2 = curwin->w_prev; 1618 frp2 = curwin->w_frame->fr_prev; 1619 if (wp->w_prev != curwin) 1620 { 1621 win_remove(curwin, NULL); 1622 frame_remove(curwin->w_frame); 1623 win_append(wp->w_prev, curwin); 1624 frame_insert(frp, curwin->w_frame); 1625 } 1626 if (wp != wp2) 1627 { 1628 win_remove(wp, NULL); 1629 frame_remove(wp->w_frame); 1630 win_append(wp2, wp); 1631 if (frp2 == NULL) 1632 frame_insert(wp->w_frame->fr_parent->fr_child, wp->w_frame); 1633 else 1634 frame_append(frp2, wp->w_frame); 1635 } 1636 temp = curwin->w_status_height; 1637 curwin->w_status_height = wp->w_status_height; 1638 wp->w_status_height = temp; 1639 temp = curwin->w_vsep_width; 1640 curwin->w_vsep_width = wp->w_vsep_width; 1641 wp->w_vsep_width = temp; 1642 1643 // If the windows are not in the same frame, exchange the sizes to avoid 1644 // messing up the window layout. Otherwise fix the frame sizes. 1645 if (curwin->w_frame->fr_parent != wp->w_frame->fr_parent) 1646 { 1647 temp = curwin->w_height; 1648 curwin->w_height = wp->w_height; 1649 wp->w_height = temp; 1650 temp = curwin->w_width; 1651 curwin->w_width = wp->w_width; 1652 wp->w_width = temp; 1653 } 1654 else 1655 { 1656 frame_fix_height(curwin); 1657 frame_fix_height(wp); 1658 frame_fix_width(curwin); 1659 frame_fix_width(wp); 1660 } 1661 1662 (void)win_comp_pos(); // recompute window positions 1663 1664 win_enter(wp, TRUE); 1665 redraw_all_later(NOT_VALID); 1666 } 1667 1668 /* 1669 * rotate windows: if upwards TRUE the second window becomes the first one 1670 * if upwards FALSE the first window becomes the second one 1671 */ 1672 static void 1673 win_rotate(int upwards, int count) 1674 { 1675 win_T *wp1; 1676 win_T *wp2; 1677 frame_T *frp; 1678 int n; 1679 1680 if (ONE_WINDOW) // nothing to do 1681 { 1682 beep_flush(); 1683 return; 1684 } 1685 1686 #ifdef FEAT_GUI 1687 need_mouse_correct = TRUE; 1688 #endif 1689 1690 // Check if all frames in this row/col have one window. 1691 FOR_ALL_FRAMES(frp, curwin->w_frame->fr_parent->fr_child) 1692 if (frp->fr_win == NULL) 1693 { 1694 emsg(_("E443: Cannot rotate when another window is split")); 1695 return; 1696 } 1697 1698 while (count--) 1699 { 1700 if (upwards) // first window becomes last window 1701 { 1702 // remove first window/frame from the list 1703 frp = curwin->w_frame->fr_parent->fr_child; 1704 wp1 = frp->fr_win; 1705 win_remove(wp1, NULL); 1706 frame_remove(frp); 1707 1708 // find last frame and append removed window/frame after it 1709 for ( ; frp->fr_next != NULL; frp = frp->fr_next) 1710 ; 1711 win_append(frp->fr_win, wp1); 1712 frame_append(frp, wp1->w_frame); 1713 1714 wp2 = frp->fr_win; // previously last window 1715 } 1716 else // last window becomes first window 1717 { 1718 // find last window/frame in the list and remove it 1719 for (frp = curwin->w_frame; frp->fr_next != NULL; 1720 frp = frp->fr_next) 1721 ; 1722 wp1 = frp->fr_win; 1723 wp2 = wp1->w_prev; // will become last window 1724 win_remove(wp1, NULL); 1725 frame_remove(frp); 1726 1727 // append the removed window/frame before the first in the list 1728 win_append(frp->fr_parent->fr_child->fr_win->w_prev, wp1); 1729 frame_insert(frp->fr_parent->fr_child, frp); 1730 } 1731 1732 // exchange status height and vsep width of old and new last window 1733 n = wp2->w_status_height; 1734 wp2->w_status_height = wp1->w_status_height; 1735 wp1->w_status_height = n; 1736 frame_fix_height(wp1); 1737 frame_fix_height(wp2); 1738 n = wp2->w_vsep_width; 1739 wp2->w_vsep_width = wp1->w_vsep_width; 1740 wp1->w_vsep_width = n; 1741 frame_fix_width(wp1); 1742 frame_fix_width(wp2); 1743 1744 // recompute w_winrow and w_wincol for all windows 1745 (void)win_comp_pos(); 1746 } 1747 1748 redraw_all_later(NOT_VALID); 1749 } 1750 1751 /* 1752 * Move the current window to the very top/bottom/left/right of the screen. 1753 */ 1754 static void 1755 win_totop(int size, int flags) 1756 { 1757 int dir; 1758 int height = curwin->w_height; 1759 1760 if (ONE_WINDOW) 1761 { 1762 beep_flush(); 1763 return; 1764 } 1765 if (check_split_disallowed() == FAIL) 1766 return; 1767 1768 // Remove the window and frame from the tree of frames. 1769 (void)winframe_remove(curwin, &dir, NULL); 1770 win_remove(curwin, NULL); 1771 last_status(FALSE); // may need to remove last status line 1772 (void)win_comp_pos(); // recompute window positions 1773 1774 // Split a window on the desired side and put the window there. 1775 (void)win_split_ins(size, flags, curwin, dir); 1776 if (!(flags & WSP_VERT)) 1777 { 1778 win_setheight(height); 1779 if (p_ea) 1780 win_equal(curwin, TRUE, 'v'); 1781 } 1782 1783 #if defined(FEAT_GUI) 1784 // When 'guioptions' includes 'L' or 'R' may have to remove or add 1785 // scrollbars. Have to update them anyway. 1786 gui_may_update_scrollbars(); 1787 #endif 1788 } 1789 1790 /* 1791 * Move window "win1" to below/right of "win2" and make "win1" the current 1792 * window. Only works within the same frame! 1793 */ 1794 void 1795 win_move_after(win_T *win1, win_T *win2) 1796 { 1797 int height; 1798 1799 // check if the arguments are reasonable 1800 if (win1 == win2) 1801 return; 1802 1803 // check if there is something to do 1804 if (win2->w_next != win1) 1805 { 1806 if (win1->w_frame->fr_parent != win2->w_frame->fr_parent) 1807 { 1808 iemsg("INTERNAL: trying to move a window into another frame"); 1809 return; 1810 } 1811 1812 // may need move the status line/vertical separator of the last window 1813 // 1814 if (win1 == lastwin) 1815 { 1816 height = win1->w_prev->w_status_height; 1817 win1->w_prev->w_status_height = win1->w_status_height; 1818 win1->w_status_height = height; 1819 if (win1->w_prev->w_vsep_width == 1) 1820 { 1821 // Remove the vertical separator from the last-but-one window, 1822 // add it to the last window. Adjust the frame widths. 1823 win1->w_prev->w_vsep_width = 0; 1824 win1->w_prev->w_frame->fr_width -= 1; 1825 win1->w_vsep_width = 1; 1826 win1->w_frame->fr_width += 1; 1827 } 1828 } 1829 else if (win2 == lastwin) 1830 { 1831 height = win1->w_status_height; 1832 win1->w_status_height = win2->w_status_height; 1833 win2->w_status_height = height; 1834 if (win1->w_vsep_width == 1) 1835 { 1836 // Remove the vertical separator from win1, add it to the last 1837 // window, win2. Adjust the frame widths. 1838 win2->w_vsep_width = 1; 1839 win2->w_frame->fr_width += 1; 1840 win1->w_vsep_width = 0; 1841 win1->w_frame->fr_width -= 1; 1842 } 1843 } 1844 win_remove(win1, NULL); 1845 frame_remove(win1->w_frame); 1846 win_append(win2, win1); 1847 frame_append(win2->w_frame, win1->w_frame); 1848 1849 (void)win_comp_pos(); // recompute w_winrow for all windows 1850 redraw_later(NOT_VALID); 1851 } 1852 win_enter(win1, FALSE); 1853 } 1854 1855 /* 1856 * Make all windows the same height. 1857 * 'next_curwin' will soon be the current window, make sure it has enough 1858 * rows. 1859 */ 1860 void 1861 win_equal( 1862 win_T *next_curwin, // pointer to current window to be or NULL 1863 int current, // do only frame with current window 1864 int dir) // 'v' for vertically, 'h' for horizontally, 1865 // 'b' for both, 0 for using p_ead 1866 { 1867 if (dir == 0) 1868 dir = *p_ead; 1869 win_equal_rec(next_curwin == NULL ? curwin : next_curwin, current, 1870 topframe, dir, 0, tabline_height(), 1871 (int)Columns, topframe->fr_height); 1872 } 1873 1874 /* 1875 * Set a frame to a new position and height, spreading the available room 1876 * equally over contained frames. 1877 * The window "next_curwin" (if not NULL) should at least get the size from 1878 * 'winheight' and 'winwidth' if possible. 1879 */ 1880 static void 1881 win_equal_rec( 1882 win_T *next_curwin, // pointer to current window to be or NULL 1883 int current, // do only frame with current window 1884 frame_T *topfr, // frame to set size off 1885 int dir, // 'v', 'h' or 'b', see win_equal() 1886 int col, // horizontal position for frame 1887 int row, // vertical position for frame 1888 int width, // new width of frame 1889 int height) // new height of frame 1890 { 1891 int n, m; 1892 int extra_sep = 0; 1893 int wincount, totwincount = 0; 1894 frame_T *fr; 1895 int next_curwin_size = 0; 1896 int room = 0; 1897 int new_size; 1898 int has_next_curwin = 0; 1899 int hnc; 1900 1901 if (topfr->fr_layout == FR_LEAF) 1902 { 1903 // Set the width/height of this frame. 1904 // Redraw when size or position changes 1905 if (topfr->fr_height != height || topfr->fr_win->w_winrow != row 1906 || topfr->fr_width != width || topfr->fr_win->w_wincol != col 1907 ) 1908 { 1909 topfr->fr_win->w_winrow = row; 1910 frame_new_height(topfr, height, FALSE, FALSE); 1911 topfr->fr_win->w_wincol = col; 1912 frame_new_width(topfr, width, FALSE, FALSE); 1913 redraw_all_later(NOT_VALID); 1914 } 1915 } 1916 else if (topfr->fr_layout == FR_ROW) 1917 { 1918 topfr->fr_width = width; 1919 topfr->fr_height = height; 1920 1921 if (dir != 'v') // equalize frame widths 1922 { 1923 // Compute the maximum number of windows horizontally in this 1924 // frame. 1925 n = frame_minwidth(topfr, NOWIN); 1926 // add one for the rightmost window, it doesn't have a separator 1927 if (col + width == Columns) 1928 extra_sep = 1; 1929 else 1930 extra_sep = 0; 1931 totwincount = (n + extra_sep) / (p_wmw + 1); 1932 has_next_curwin = frame_has_win(topfr, next_curwin); 1933 1934 /* 1935 * Compute width for "next_curwin" window and room available for 1936 * other windows. 1937 * "m" is the minimal width when counting p_wiw for "next_curwin". 1938 */ 1939 m = frame_minwidth(topfr, next_curwin); 1940 room = width - m; 1941 if (room < 0) 1942 { 1943 next_curwin_size = p_wiw + room; 1944 room = 0; 1945 } 1946 else 1947 { 1948 next_curwin_size = -1; 1949 FOR_ALL_FRAMES(fr, topfr->fr_child) 1950 { 1951 // If 'winfixwidth' set keep the window width if 1952 // possible. 1953 // Watch out for this window being the next_curwin. 1954 if (frame_fixed_width(fr)) 1955 { 1956 n = frame_minwidth(fr, NOWIN); 1957 new_size = fr->fr_width; 1958 if (frame_has_win(fr, next_curwin)) 1959 { 1960 room += p_wiw - p_wmw; 1961 next_curwin_size = 0; 1962 if (new_size < p_wiw) 1963 new_size = p_wiw; 1964 } 1965 else 1966 // These windows don't use up room. 1967 totwincount -= (n + (fr->fr_next == NULL 1968 ? extra_sep : 0)) / (p_wmw + 1); 1969 room -= new_size - n; 1970 if (room < 0) 1971 { 1972 new_size += room; 1973 room = 0; 1974 } 1975 fr->fr_newwidth = new_size; 1976 } 1977 } 1978 if (next_curwin_size == -1) 1979 { 1980 if (!has_next_curwin) 1981 next_curwin_size = 0; 1982 else if (totwincount > 1 1983 && (room + (totwincount - 2)) 1984 / (totwincount - 1) > p_wiw) 1985 { 1986 // Can make all windows wider than 'winwidth', spread 1987 // the room equally. 1988 next_curwin_size = (room + p_wiw 1989 + (totwincount - 1) * p_wmw 1990 + (totwincount - 1)) / totwincount; 1991 room -= next_curwin_size - p_wiw; 1992 } 1993 else 1994 next_curwin_size = p_wiw; 1995 } 1996 } 1997 1998 if (has_next_curwin) 1999 --totwincount; // don't count curwin 2000 } 2001 2002 FOR_ALL_FRAMES(fr, topfr->fr_child) 2003 { 2004 wincount = 1; 2005 if (fr->fr_next == NULL) 2006 // last frame gets all that remains (avoid roundoff error) 2007 new_size = width; 2008 else if (dir == 'v') 2009 new_size = fr->fr_width; 2010 else if (frame_fixed_width(fr)) 2011 { 2012 new_size = fr->fr_newwidth; 2013 wincount = 0; // doesn't count as a sizeable window 2014 } 2015 else 2016 { 2017 // Compute the maximum number of windows horiz. in "fr". 2018 n = frame_minwidth(fr, NOWIN); 2019 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 2020 / (p_wmw + 1); 2021 m = frame_minwidth(fr, next_curwin); 2022 if (has_next_curwin) 2023 hnc = frame_has_win(fr, next_curwin); 2024 else 2025 hnc = FALSE; 2026 if (hnc) // don't count next_curwin 2027 --wincount; 2028 if (totwincount == 0) 2029 new_size = room; 2030 else 2031 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 2032 / totwincount; 2033 if (hnc) // add next_curwin size 2034 { 2035 next_curwin_size -= p_wiw - (m - n); 2036 new_size += next_curwin_size; 2037 room -= new_size - next_curwin_size; 2038 } 2039 else 2040 room -= new_size; 2041 new_size += n; 2042 } 2043 2044 // Skip frame that is full width when splitting or closing a 2045 // window, unless equalizing all frames. 2046 if (!current || dir != 'v' || topfr->fr_parent != NULL 2047 || (new_size != fr->fr_width) 2048 || frame_has_win(fr, next_curwin)) 2049 win_equal_rec(next_curwin, current, fr, dir, col, row, 2050 new_size, height); 2051 col += new_size; 2052 width -= new_size; 2053 totwincount -= wincount; 2054 } 2055 } 2056 else // topfr->fr_layout == FR_COL 2057 { 2058 topfr->fr_width = width; 2059 topfr->fr_height = height; 2060 2061 if (dir != 'h') // equalize frame heights 2062 { 2063 // Compute maximum number of windows vertically in this frame. 2064 n = frame_minheight(topfr, NOWIN); 2065 // add one for the bottom window if it doesn't have a statusline 2066 if (row + height == cmdline_row && p_ls == 0) 2067 extra_sep = 1; 2068 else 2069 extra_sep = 0; 2070 totwincount = (n + extra_sep) / (p_wmh + 1); 2071 has_next_curwin = frame_has_win(topfr, next_curwin); 2072 2073 /* 2074 * Compute height for "next_curwin" window and room available for 2075 * other windows. 2076 * "m" is the minimal height when counting p_wh for "next_curwin". 2077 */ 2078 m = frame_minheight(topfr, next_curwin); 2079 room = height - m; 2080 if (room < 0) 2081 { 2082 // The room is less then 'winheight', use all space for the 2083 // current window. 2084 next_curwin_size = p_wh + room; 2085 room = 0; 2086 } 2087 else 2088 { 2089 next_curwin_size = -1; 2090 FOR_ALL_FRAMES(fr, topfr->fr_child) 2091 { 2092 // If 'winfixheight' set keep the window height if 2093 // possible. 2094 // Watch out for this window being the next_curwin. 2095 if (frame_fixed_height(fr)) 2096 { 2097 n = frame_minheight(fr, NOWIN); 2098 new_size = fr->fr_height; 2099 if (frame_has_win(fr, next_curwin)) 2100 { 2101 room += p_wh - p_wmh; 2102 next_curwin_size = 0; 2103 if (new_size < p_wh) 2104 new_size = p_wh; 2105 } 2106 else 2107 // These windows don't use up room. 2108 totwincount -= (n + (fr->fr_next == NULL 2109 ? extra_sep : 0)) / (p_wmh + 1); 2110 room -= new_size - n; 2111 if (room < 0) 2112 { 2113 new_size += room; 2114 room = 0; 2115 } 2116 fr->fr_newheight = new_size; 2117 } 2118 } 2119 if (next_curwin_size == -1) 2120 { 2121 if (!has_next_curwin) 2122 next_curwin_size = 0; 2123 else if (totwincount > 1 2124 && (room + (totwincount - 2)) 2125 / (totwincount - 1) > p_wh) 2126 { 2127 // can make all windows higher than 'winheight', 2128 // spread the room equally. 2129 next_curwin_size = (room + p_wh 2130 + (totwincount - 1) * p_wmh 2131 + (totwincount - 1)) / totwincount; 2132 room -= next_curwin_size - p_wh; 2133 } 2134 else 2135 next_curwin_size = p_wh; 2136 } 2137 } 2138 2139 if (has_next_curwin) 2140 --totwincount; // don't count curwin 2141 } 2142 2143 FOR_ALL_FRAMES(fr, topfr->fr_child) 2144 { 2145 wincount = 1; 2146 if (fr->fr_next == NULL) 2147 // last frame gets all that remains (avoid roundoff error) 2148 new_size = height; 2149 else if (dir == 'h') 2150 new_size = fr->fr_height; 2151 else if (frame_fixed_height(fr)) 2152 { 2153 new_size = fr->fr_newheight; 2154 wincount = 0; // doesn't count as a sizeable window 2155 } 2156 else 2157 { 2158 // Compute the maximum number of windows vert. in "fr". 2159 n = frame_minheight(fr, NOWIN); 2160 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 2161 / (p_wmh + 1); 2162 m = frame_minheight(fr, next_curwin); 2163 if (has_next_curwin) 2164 hnc = frame_has_win(fr, next_curwin); 2165 else 2166 hnc = FALSE; 2167 if (hnc) // don't count next_curwin 2168 --wincount; 2169 if (totwincount == 0) 2170 new_size = room; 2171 else 2172 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 2173 / totwincount; 2174 if (hnc) // add next_curwin size 2175 { 2176 next_curwin_size -= p_wh - (m - n); 2177 new_size += next_curwin_size; 2178 room -= new_size - next_curwin_size; 2179 } 2180 else 2181 room -= new_size; 2182 new_size += n; 2183 } 2184 // Skip frame that is full width when splitting or closing a 2185 // window, unless equalizing all frames. 2186 if (!current || dir != 'h' || topfr->fr_parent != NULL 2187 || (new_size != fr->fr_height) 2188 || frame_has_win(fr, next_curwin)) 2189 win_equal_rec(next_curwin, current, fr, dir, col, row, 2190 width, new_size); 2191 row += new_size; 2192 height -= new_size; 2193 totwincount -= wincount; 2194 } 2195 } 2196 } 2197 2198 #ifdef FEAT_JOB_CHANNEL 2199 static void 2200 leaving_window(win_T *win) 2201 { 2202 // Only matters for a prompt window. 2203 if (!bt_prompt(win->w_buffer)) 2204 return; 2205 2206 // When leaving a prompt window stop Insert mode and perhaps restart 2207 // it when entering that window again. 2208 win->w_buffer->b_prompt_insert = restart_edit; 2209 if (restart_edit != 0 && mode_displayed) 2210 clear_cmdline = TRUE; // unshow mode later 2211 restart_edit = NUL; 2212 2213 // When leaving the window (or closing the window) was done from a 2214 // callback we need to break out of the Insert mode loop and restart Insert 2215 // mode when entering the window again. 2216 if (State & INSERT) 2217 { 2218 stop_insert_mode = TRUE; 2219 if (win->w_buffer->b_prompt_insert == NUL) 2220 win->w_buffer->b_prompt_insert = 'A'; 2221 } 2222 } 2223 2224 static void 2225 entering_window(win_T *win) 2226 { 2227 // Only matters for a prompt window. 2228 if (!bt_prompt(win->w_buffer)) 2229 return; 2230 2231 // When switching to a prompt buffer that was in Insert mode, don't stop 2232 // Insert mode, it may have been set in leaving_window(). 2233 if (win->w_buffer->b_prompt_insert != NUL) 2234 stop_insert_mode = FALSE; 2235 2236 // When entering the prompt window restart Insert mode if we were in Insert 2237 // mode when we left it. 2238 restart_edit = win->w_buffer->b_prompt_insert; 2239 } 2240 #endif 2241 2242 /* 2243 * Close all windows for buffer "buf". 2244 */ 2245 void 2246 close_windows( 2247 buf_T *buf, 2248 int keep_curwin) // don't close "curwin" 2249 { 2250 win_T *wp; 2251 tabpage_T *tp, *nexttp; 2252 int h = tabline_height(); 2253 int count = tabpage_index(NULL); 2254 2255 ++RedrawingDisabled; 2256 2257 for (wp = firstwin; wp != NULL && !ONE_WINDOW; ) 2258 { 2259 if (wp->w_buffer == buf && (!keep_curwin || wp != curwin) 2260 && !(wp->w_closing || wp->w_buffer->b_locked > 0)) 2261 { 2262 if (win_close(wp, FALSE) == FAIL) 2263 // If closing the window fails give up, to avoid looping 2264 // forever. 2265 break; 2266 2267 // Start all over, autocommands may change the window layout. 2268 wp = firstwin; 2269 } 2270 else 2271 wp = wp->w_next; 2272 } 2273 2274 // Also check windows in other tab pages. 2275 for (tp = first_tabpage; tp != NULL; tp = nexttp) 2276 { 2277 nexttp = tp->tp_next; 2278 if (tp != curtab) 2279 for (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next) 2280 if (wp->w_buffer == buf 2281 && !(wp->w_closing || wp->w_buffer->b_locked > 0)) 2282 { 2283 win_close_othertab(wp, FALSE, tp); 2284 2285 // Start all over, the tab page may be closed and 2286 // autocommands may change the window layout. 2287 nexttp = first_tabpage; 2288 break; 2289 } 2290 } 2291 2292 --RedrawingDisabled; 2293 2294 if (count != tabpage_index(NULL)) 2295 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2296 2297 redraw_tabline = TRUE; 2298 if (h != tabline_height()) 2299 shell_new_rows(); 2300 } 2301 2302 /* 2303 * Return TRUE if the current window is the only window that exists (ignoring 2304 * "aucmd_win"). 2305 * Returns FALSE if there is a window, possibly in another tab page. 2306 */ 2307 static int 2308 last_window(void) 2309 { 2310 return (one_window() && first_tabpage->tp_next == NULL); 2311 } 2312 2313 /* 2314 * Return TRUE if there is only one window other than "aucmd_win" in the 2315 * current tab page. 2316 */ 2317 int 2318 one_window(void) 2319 { 2320 win_T *wp; 2321 int seen_one = FALSE; 2322 2323 FOR_ALL_WINDOWS(wp) 2324 { 2325 if (wp != aucmd_win) 2326 { 2327 if (seen_one) 2328 return FALSE; 2329 seen_one = TRUE; 2330 } 2331 } 2332 return TRUE; 2333 } 2334 2335 /* 2336 * Close the possibly last window in a tab page. 2337 * Returns TRUE when the window was closed already. 2338 */ 2339 static int 2340 close_last_window_tabpage( 2341 win_T *win, 2342 int free_buf, 2343 tabpage_T *prev_curtab) 2344 { 2345 if (ONE_WINDOW) 2346 { 2347 buf_T *old_curbuf = curbuf; 2348 2349 /* 2350 * Closing the last window in a tab page. First go to another tab 2351 * page and then close the window and the tab page. This avoids that 2352 * curwin and curtab are invalid while we are freeing memory, they may 2353 * be used in GUI events. 2354 * Don't trigger autocommands yet, they may use wrong values, so do 2355 * that below. 2356 */ 2357 goto_tabpage_tp(alt_tabpage(), FALSE, TRUE); 2358 redraw_tabline = TRUE; 2359 2360 // Safety check: Autocommands may have closed the window when jumping 2361 // to the other tab page. 2362 if (valid_tabpage(prev_curtab) && prev_curtab->tp_firstwin == win) 2363 { 2364 int h = tabline_height(); 2365 2366 win_close_othertab(win, free_buf, prev_curtab); 2367 if (h != tabline_height()) 2368 shell_new_rows(); 2369 } 2370 #ifdef FEAT_JOB_CHANNEL 2371 entering_window(curwin); 2372 #endif 2373 // Since goto_tabpage_tp above did not trigger *Enter autocommands, do 2374 // that now. 2375 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2376 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 2377 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 2378 if (old_curbuf != curbuf) 2379 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2380 return TRUE; 2381 } 2382 return FALSE; 2383 } 2384 2385 /* 2386 * Close the buffer of "win" and unload it if "action" is DOBUF_UNLOAD. 2387 * "action" can also be zero (do nothing) or DOBUF_WIPE. 2388 * "abort_if_last" is passed to close_buffer(): abort closing if all other 2389 * windows are closed. 2390 */ 2391 static void 2392 win_close_buffer(win_T *win, int action, int abort_if_last) 2393 { 2394 #ifdef FEAT_SYN_HL 2395 // Free independent synblock before the buffer is freed. 2396 if (win->w_buffer != NULL) 2397 reset_synblock(win); 2398 #endif 2399 2400 #ifdef FEAT_QUICKFIX 2401 // When the quickfix/location list window is closed, unlist the buffer. 2402 if (win->w_buffer != NULL && bt_quickfix(win->w_buffer)) 2403 win->w_buffer->b_p_bl = FALSE; 2404 #endif 2405 2406 // Close the link to the buffer. 2407 if (win->w_buffer != NULL) 2408 { 2409 bufref_T bufref; 2410 2411 set_bufref(&bufref, curbuf); 2412 win->w_closing = TRUE; 2413 close_buffer(win, win->w_buffer, action, abort_if_last, FALSE); 2414 if (win_valid_any_tab(win)) 2415 win->w_closing = FALSE; 2416 // Make sure curbuf is valid. It can become invalid if 'bufhidden' is 2417 // "wipe". 2418 if (!bufref_valid(&bufref)) 2419 curbuf = firstbuf; 2420 } 2421 } 2422 2423 /* 2424 * Close window "win". Only works for the current tab page. 2425 * If "free_buf" is TRUE related buffer may be unloaded. 2426 * 2427 * Called by :quit, :close, :xit, :wq and findtag(). 2428 * Returns FAIL when the window was not closed. 2429 */ 2430 int 2431 win_close(win_T *win, int free_buf) 2432 { 2433 win_T *wp; 2434 int other_buffer = FALSE; 2435 int close_curwin = FALSE; 2436 int dir; 2437 int help_window = FALSE; 2438 tabpage_T *prev_curtab = curtab; 2439 frame_T *win_frame = win->w_frame->fr_parent; 2440 #ifdef FEAT_DIFF 2441 int had_diffmode = win->w_p_diff; 2442 #endif 2443 2444 #if defined(FEAT_TERMINAL) && defined(FEAT_PROP_POPUP) 2445 // Can close a popup window with a terminal if the job has finished. 2446 if (may_close_term_popup() == OK) 2447 return OK; 2448 #endif 2449 if (ERROR_IF_ANY_POPUP_WINDOW) 2450 return FAIL; 2451 2452 if (last_window()) 2453 { 2454 emsg(_("E444: Cannot close last window")); 2455 return FAIL; 2456 } 2457 2458 if (win->w_closing || (win->w_buffer != NULL 2459 && win->w_buffer->b_locked > 0)) 2460 return FAIL; // window is already being closed 2461 if (win_unlisted(win)) 2462 { 2463 emsg(_("E813: Cannot close autocmd or popup window")); 2464 return FAIL; 2465 } 2466 if ((firstwin == aucmd_win || lastwin == aucmd_win) && one_window()) 2467 { 2468 emsg(_("E814: Cannot close window, only autocmd window would remain")); 2469 return FAIL; 2470 } 2471 2472 // When closing the last window in a tab page first go to another tab page 2473 // and then close the window and the tab page to avoid that curwin and 2474 // curtab are invalid while we are freeing memory. 2475 if (close_last_window_tabpage(win, free_buf, prev_curtab)) 2476 return FAIL; 2477 2478 // When closing the help window, try restoring a snapshot after closing 2479 // the window. Otherwise clear the snapshot, it's now invalid. 2480 if (bt_help(win->w_buffer)) 2481 help_window = TRUE; 2482 else 2483 clear_snapshot(curtab, SNAP_HELP_IDX); 2484 2485 if (win == curwin) 2486 { 2487 #ifdef FEAT_JOB_CHANNEL 2488 leaving_window(curwin); 2489 #endif 2490 /* 2491 * Guess which window is going to be the new current window. 2492 * This may change because of the autocommands (sigh). 2493 */ 2494 wp = frame2win(win_altframe(win, NULL)); 2495 2496 /* 2497 * Be careful: If autocommands delete the window or cause this window 2498 * to be the last one left, return now. 2499 */ 2500 if (wp->w_buffer != curbuf) 2501 { 2502 other_buffer = TRUE; 2503 win->w_closing = TRUE; 2504 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 2505 if (!win_valid(win)) 2506 return FAIL; 2507 win->w_closing = FALSE; 2508 if (last_window()) 2509 return FAIL; 2510 } 2511 win->w_closing = TRUE; 2512 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 2513 if (!win_valid(win)) 2514 return FAIL; 2515 win->w_closing = FALSE; 2516 if (last_window()) 2517 return FAIL; 2518 #ifdef FEAT_EVAL 2519 // autocmds may abort script processing 2520 if (aborting()) 2521 return FAIL; 2522 #endif 2523 } 2524 2525 #ifdef FEAT_GUI 2526 // Avoid trouble with scrollbars that are going to be deleted in 2527 // win_free(). 2528 if (gui.in_use) 2529 out_flush(); 2530 #endif 2531 2532 #ifdef FEAT_PROP_POPUP 2533 if (popup_win_closed(win) && !win_valid(win)) 2534 return FAIL; 2535 #endif 2536 win_close_buffer(win, free_buf ? DOBUF_UNLOAD : 0, TRUE); 2537 2538 if (only_one_window() && win_valid(win) && win->w_buffer == NULL 2539 && (last_window() || curtab != prev_curtab 2540 || close_last_window_tabpage(win, free_buf, prev_curtab))) 2541 { 2542 // Autocommands have closed all windows, quit now. Restore 2543 // curwin->w_buffer, otherwise writing viminfo may fail. 2544 if (curwin->w_buffer == NULL) 2545 curwin->w_buffer = curbuf; 2546 getout(0); 2547 } 2548 2549 // Autocommands may have moved to another tab page. 2550 if (curtab != prev_curtab && win_valid_any_tab(win) 2551 && win->w_buffer == NULL) 2552 { 2553 // Need to close the window anyway, since the buffer is NULL. 2554 win_close_othertab(win, FALSE, prev_curtab); 2555 return FAIL; 2556 } 2557 2558 // Autocommands may have closed the window already or closed the only 2559 // other window. 2560 if (!win_valid(win) || last_window() 2561 || close_last_window_tabpage(win, free_buf, prev_curtab)) 2562 return FAIL; 2563 2564 // Now we are really going to close the window. Disallow any autocommand 2565 // to split a window to avoid trouble. 2566 ++split_disallowed; 2567 2568 // Free the memory used for the window and get the window that received 2569 // the screen space. 2570 wp = win_free_mem(win, &dir, NULL); 2571 2572 // Make sure curwin isn't invalid. It can cause severe trouble when 2573 // printing an error message. For win_equal() curbuf needs to be valid 2574 // too. 2575 if (win == curwin) 2576 { 2577 curwin = wp; 2578 #ifdef FEAT_QUICKFIX 2579 if (wp->w_p_pvw || bt_quickfix(wp->w_buffer)) 2580 { 2581 /* 2582 * If the cursor goes to the preview or the quickfix window, try 2583 * finding another window to go to. 2584 */ 2585 for (;;) 2586 { 2587 if (wp->w_next == NULL) 2588 wp = firstwin; 2589 else 2590 wp = wp->w_next; 2591 if (wp == curwin) 2592 break; 2593 if (!wp->w_p_pvw && !bt_quickfix(wp->w_buffer)) 2594 { 2595 curwin = wp; 2596 break; 2597 } 2598 } 2599 } 2600 #endif 2601 curbuf = curwin->w_buffer; 2602 close_curwin = TRUE; 2603 2604 // The cursor position may be invalid if the buffer changed after last 2605 // using the window. 2606 check_cursor(); 2607 } 2608 if (p_ea && (*p_ead == 'b' || *p_ead == dir)) 2609 // If the frame of the closed window contains the new current window, 2610 // only resize that frame. Otherwise resize all windows. 2611 win_equal(curwin, curwin->w_frame->fr_parent == win_frame, dir); 2612 else 2613 win_comp_pos(); 2614 if (close_curwin) 2615 { 2616 win_enter_ext(wp, FALSE, TRUE, FALSE, TRUE, TRUE); 2617 if (other_buffer) 2618 // careful: after this wp and win may be invalid! 2619 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2620 } 2621 2622 --split_disallowed; 2623 2624 /* 2625 * If last window has a status line now and we don't want one, 2626 * remove the status line. 2627 */ 2628 last_status(FALSE); 2629 2630 // After closing the help window, try restoring the window layout from 2631 // before it was opened. 2632 if (help_window) 2633 restore_snapshot(SNAP_HELP_IDX, close_curwin); 2634 2635 #ifdef FEAT_DIFF 2636 // If the window had 'diff' set and now there is only one window left in 2637 // the tab page with 'diff' set, and "closeoff" is in 'diffopt', then 2638 // execute ":diffoff!". 2639 if (diffopt_closeoff() && had_diffmode && curtab == prev_curtab) 2640 { 2641 int diffcount = 0; 2642 win_T *dwin; 2643 2644 FOR_ALL_WINDOWS(dwin) 2645 if (dwin->w_p_diff) 2646 ++diffcount; 2647 if (diffcount == 1) 2648 do_cmdline_cmd((char_u *)"diffoff!"); 2649 } 2650 #endif 2651 2652 #if defined(FEAT_GUI) 2653 // When 'guioptions' includes 'L' or 'R' may have to remove scrollbars. 2654 if (gui.in_use && !win_hasvertsplit()) 2655 gui_init_which_components(NULL); 2656 #endif 2657 2658 redraw_all_later(NOT_VALID); 2659 return OK; 2660 } 2661 2662 /* 2663 * Close window "win" in tab page "tp", which is not the current tab page. 2664 * This may be the last window in that tab page and result in closing the tab, 2665 * thus "tp" may become invalid! 2666 * Caller must check if buffer is hidden and whether the tabline needs to be 2667 * updated. 2668 */ 2669 void 2670 win_close_othertab(win_T *win, int free_buf, tabpage_T *tp) 2671 { 2672 win_T *wp; 2673 int dir; 2674 tabpage_T *ptp = NULL; 2675 int free_tp = FALSE; 2676 2677 // Get here with win->w_buffer == NULL when win_close() detects the tab 2678 // page changed. 2679 if (win->w_closing || (win->w_buffer != NULL 2680 && win->w_buffer->b_locked > 0)) 2681 return; // window is already being closed 2682 2683 if (win->w_buffer != NULL) 2684 // Close the link to the buffer. 2685 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, 2686 FALSE, FALSE); 2687 2688 // Careful: Autocommands may have closed the tab page or made it the 2689 // current tab page. 2690 for (ptp = first_tabpage; ptp != NULL && ptp != tp; ptp = ptp->tp_next) 2691 ; 2692 if (ptp == NULL || tp == curtab) 2693 return; 2694 2695 // Autocommands may have closed the window already. 2696 for (wp = tp->tp_firstwin; wp != NULL && wp != win; wp = wp->w_next) 2697 ; 2698 if (wp == NULL) 2699 return; 2700 2701 // When closing the last window in a tab page remove the tab page. 2702 if (tp->tp_firstwin == tp->tp_lastwin) 2703 { 2704 if (tp == first_tabpage) 2705 first_tabpage = tp->tp_next; 2706 else 2707 { 2708 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tp; 2709 ptp = ptp->tp_next) 2710 ; 2711 if (ptp == NULL) 2712 { 2713 internal_error("win_close_othertab()"); 2714 return; 2715 } 2716 ptp->tp_next = tp->tp_next; 2717 } 2718 free_tp = TRUE; 2719 } 2720 2721 // Free the memory used for the window. 2722 win_free_mem(win, &dir, tp); 2723 2724 if (free_tp) 2725 free_tabpage(tp); 2726 } 2727 2728 /* 2729 * Free the memory used for a window. 2730 * Returns a pointer to the window that got the freed up space. 2731 */ 2732 static win_T * 2733 win_free_mem( 2734 win_T *win, 2735 int *dirp, // set to 'v' or 'h' for direction if 'ea' 2736 tabpage_T *tp) // tab page "win" is in, NULL for current 2737 { 2738 frame_T *frp; 2739 win_T *wp; 2740 2741 // Remove the window and its frame from the tree of frames. 2742 frp = win->w_frame; 2743 wp = winframe_remove(win, dirp, tp); 2744 vim_free(frp); 2745 win_free(win, tp); 2746 2747 // When deleting the current window of another tab page select a new 2748 // current window. 2749 if (tp != NULL && win == tp->tp_curwin) 2750 tp->tp_curwin = wp; 2751 2752 return wp; 2753 } 2754 2755 #if defined(EXITFREE) || defined(PROTO) 2756 void 2757 win_free_all(void) 2758 { 2759 int dummy; 2760 2761 while (first_tabpage->tp_next != NULL) 2762 tabpage_close(TRUE); 2763 2764 if (aucmd_win != NULL) 2765 { 2766 (void)win_free_mem(aucmd_win, &dummy, NULL); 2767 aucmd_win = NULL; 2768 } 2769 # ifdef FEAT_PROP_POPUP 2770 close_all_popups(); 2771 # endif 2772 2773 while (firstwin != NULL) 2774 (void)win_free_mem(firstwin, &dummy, NULL); 2775 2776 // No window should be used after this. Set curwin to NULL to crash 2777 // instead of using freed memory. 2778 curwin = NULL; 2779 } 2780 #endif 2781 2782 /* 2783 * Remove a window and its frame from the tree of frames. 2784 * Returns a pointer to the window that got the freed up space. 2785 */ 2786 win_T * 2787 winframe_remove( 2788 win_T *win, 2789 int *dirp UNUSED, // set to 'v' or 'h' for direction if 'ea' 2790 tabpage_T *tp) // tab page "win" is in, NULL for current 2791 { 2792 frame_T *frp, *frp2, *frp3; 2793 frame_T *frp_close = win->w_frame; 2794 win_T *wp; 2795 2796 /* 2797 * If there is only one window there is nothing to remove. 2798 */ 2799 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 2800 return NULL; 2801 2802 /* 2803 * Remove the window from its frame. 2804 */ 2805 frp2 = win_altframe(win, tp); 2806 wp = frame2win(frp2); 2807 2808 // Remove this frame from the list of frames. 2809 frame_remove(frp_close); 2810 2811 if (frp_close->fr_parent->fr_layout == FR_COL) 2812 { 2813 // When 'winfixheight' is set, try to find another frame in the column 2814 // (as close to the closed frame as possible) to distribute the height 2815 // to. 2816 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfh) 2817 { 2818 frp = frp_close->fr_prev; 2819 frp3 = frp_close->fr_next; 2820 while (frp != NULL || frp3 != NULL) 2821 { 2822 if (frp != NULL) 2823 { 2824 if (!frame_fixed_height(frp)) 2825 { 2826 frp2 = frp; 2827 wp = frame2win(frp2); 2828 break; 2829 } 2830 frp = frp->fr_prev; 2831 } 2832 if (frp3 != NULL) 2833 { 2834 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfh) 2835 { 2836 frp2 = frp3; 2837 wp = frp3->fr_win; 2838 break; 2839 } 2840 frp3 = frp3->fr_next; 2841 } 2842 } 2843 } 2844 frame_new_height(frp2, frp2->fr_height + frp_close->fr_height, 2845 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2846 *dirp = 'v'; 2847 } 2848 else 2849 { 2850 // When 'winfixwidth' is set, try to find another frame in the column 2851 // (as close to the closed frame as possible) to distribute the width 2852 // to. 2853 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfw) 2854 { 2855 frp = frp_close->fr_prev; 2856 frp3 = frp_close->fr_next; 2857 while (frp != NULL || frp3 != NULL) 2858 { 2859 if (frp != NULL) 2860 { 2861 if (!frame_fixed_width(frp)) 2862 { 2863 frp2 = frp; 2864 wp = frame2win(frp2); 2865 break; 2866 } 2867 frp = frp->fr_prev; 2868 } 2869 if (frp3 != NULL) 2870 { 2871 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfw) 2872 { 2873 frp2 = frp3; 2874 wp = frp3->fr_win; 2875 break; 2876 } 2877 frp3 = frp3->fr_next; 2878 } 2879 } 2880 } 2881 frame_new_width(frp2, frp2->fr_width + frp_close->fr_width, 2882 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2883 *dirp = 'h'; 2884 } 2885 2886 // If rows/columns go to a window below/right its positions need to be 2887 // updated. Can only be done after the sizes have been updated. 2888 if (frp2 == frp_close->fr_next) 2889 { 2890 int row = win->w_winrow; 2891 int col = win->w_wincol; 2892 2893 frame_comp_pos(frp2, &row, &col); 2894 } 2895 2896 if (frp2->fr_next == NULL && frp2->fr_prev == NULL) 2897 { 2898 // There is no other frame in this list, move its info to the parent 2899 // and remove it. 2900 frp2->fr_parent->fr_layout = frp2->fr_layout; 2901 frp2->fr_parent->fr_child = frp2->fr_child; 2902 FOR_ALL_FRAMES(frp, frp2->fr_child) 2903 frp->fr_parent = frp2->fr_parent; 2904 frp2->fr_parent->fr_win = frp2->fr_win; 2905 if (frp2->fr_win != NULL) 2906 frp2->fr_win->w_frame = frp2->fr_parent; 2907 frp = frp2->fr_parent; 2908 if (topframe->fr_child == frp2) 2909 topframe->fr_child = frp; 2910 vim_free(frp2); 2911 2912 frp2 = frp->fr_parent; 2913 if (frp2 != NULL && frp2->fr_layout == frp->fr_layout) 2914 { 2915 // The frame above the parent has the same layout, have to merge 2916 // the frames into this list. 2917 if (frp2->fr_child == frp) 2918 frp2->fr_child = frp->fr_child; 2919 frp->fr_child->fr_prev = frp->fr_prev; 2920 if (frp->fr_prev != NULL) 2921 frp->fr_prev->fr_next = frp->fr_child; 2922 for (frp3 = frp->fr_child; ; frp3 = frp3->fr_next) 2923 { 2924 frp3->fr_parent = frp2; 2925 if (frp3->fr_next == NULL) 2926 { 2927 frp3->fr_next = frp->fr_next; 2928 if (frp->fr_next != NULL) 2929 frp->fr_next->fr_prev = frp3; 2930 break; 2931 } 2932 } 2933 if (topframe->fr_child == frp) 2934 topframe->fr_child = frp2; 2935 vim_free(frp); 2936 } 2937 } 2938 2939 return wp; 2940 } 2941 2942 /* 2943 * Return a pointer to the frame that will receive the empty screen space that 2944 * is left over after "win" is closed. 2945 * 2946 * If 'splitbelow' or 'splitright' is set, the space goes above or to the left 2947 * by default. Otherwise, the free space goes below or to the right. The 2948 * result is that opening a window and then immediately closing it will 2949 * preserve the initial window layout. The 'wfh' and 'wfw' settings are 2950 * respected when possible. 2951 */ 2952 static frame_T * 2953 win_altframe( 2954 win_T *win, 2955 tabpage_T *tp) // tab page "win" is in, NULL for current 2956 { 2957 frame_T *frp; 2958 frame_T *other_fr, *target_fr; 2959 2960 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 2961 return alt_tabpage()->tp_curwin->w_frame; 2962 2963 frp = win->w_frame; 2964 2965 if (frp->fr_prev == NULL) 2966 return frp->fr_next; 2967 if (frp->fr_next == NULL) 2968 return frp->fr_prev; 2969 2970 target_fr = frp->fr_next; 2971 other_fr = frp->fr_prev; 2972 if (p_spr || p_sb) 2973 { 2974 target_fr = frp->fr_prev; 2975 other_fr = frp->fr_next; 2976 } 2977 2978 // If 'wfh' or 'wfw' is set for the target and not for the alternate 2979 // window, reverse the selection. 2980 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW) 2981 { 2982 if (frame_fixed_width(target_fr) && !frame_fixed_width(other_fr)) 2983 target_fr = other_fr; 2984 } 2985 else 2986 { 2987 if (frame_fixed_height(target_fr) && !frame_fixed_height(other_fr)) 2988 target_fr = other_fr; 2989 } 2990 2991 return target_fr; 2992 } 2993 2994 /* 2995 * Return the tabpage that will be used if the current one is closed. 2996 */ 2997 static tabpage_T * 2998 alt_tabpage(void) 2999 { 3000 tabpage_T *tp; 3001 3002 // Use the next tab page if possible. 3003 if (curtab->tp_next != NULL) 3004 return curtab->tp_next; 3005 3006 // Find the last but one tab page. 3007 for (tp = first_tabpage; tp->tp_next != curtab; tp = tp->tp_next) 3008 ; 3009 return tp; 3010 } 3011 3012 /* 3013 * Find the left-upper window in frame "frp". 3014 */ 3015 static win_T * 3016 frame2win(frame_T *frp) 3017 { 3018 while (frp->fr_win == NULL) 3019 frp = frp->fr_child; 3020 return frp->fr_win; 3021 } 3022 3023 /* 3024 * Return TRUE if frame "frp" contains window "wp". 3025 */ 3026 static int 3027 frame_has_win(frame_T *frp, win_T *wp) 3028 { 3029 frame_T *p; 3030 3031 if (frp->fr_layout == FR_LEAF) 3032 return frp->fr_win == wp; 3033 3034 FOR_ALL_FRAMES(p, frp->fr_child) 3035 if (frame_has_win(p, wp)) 3036 return TRUE; 3037 return FALSE; 3038 } 3039 3040 /* 3041 * Set a new height for a frame. Recursively sets the height for contained 3042 * frames and windows. Caller must take care of positions. 3043 */ 3044 static void 3045 frame_new_height( 3046 frame_T *topfrp, 3047 int height, 3048 int topfirst, // resize topmost contained frame first 3049 int wfh) // obey 'winfixheight' when there is a choice; 3050 // may cause the height not to be set 3051 { 3052 frame_T *frp; 3053 int extra_lines; 3054 int h; 3055 3056 if (topfrp->fr_win != NULL) 3057 { 3058 // Simple case: just one window. 3059 win_new_height(topfrp->fr_win, 3060 height - topfrp->fr_win->w_status_height 3061 - WINBAR_HEIGHT(topfrp->fr_win)); 3062 } 3063 else if (topfrp->fr_layout == FR_ROW) 3064 { 3065 do 3066 { 3067 // All frames in this row get the same new height. 3068 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3069 { 3070 frame_new_height(frp, height, topfirst, wfh); 3071 if (frp->fr_height > height) 3072 { 3073 // Could not fit the windows, make the whole row higher. 3074 height = frp->fr_height; 3075 break; 3076 } 3077 } 3078 } 3079 while (frp != NULL); 3080 } 3081 else // fr_layout == FR_COL 3082 { 3083 // Complicated case: Resize a column of frames. Resize the bottom 3084 // frame first, frames above that when needed. 3085 3086 frp = topfrp->fr_child; 3087 if (wfh) 3088 // Advance past frames with one window with 'wfh' set. 3089 while (frame_fixed_height(frp)) 3090 { 3091 frp = frp->fr_next; 3092 if (frp == NULL) 3093 return; // no frame without 'wfh', give up 3094 } 3095 if (!topfirst) 3096 { 3097 // Find the bottom frame of this column 3098 while (frp->fr_next != NULL) 3099 frp = frp->fr_next; 3100 if (wfh) 3101 // Advance back for frames with one window with 'wfh' set. 3102 while (frame_fixed_height(frp)) 3103 frp = frp->fr_prev; 3104 } 3105 3106 extra_lines = height - topfrp->fr_height; 3107 if (extra_lines < 0) 3108 { 3109 // reduce height of contained frames, bottom or top frame first 3110 while (frp != NULL) 3111 { 3112 h = frame_minheight(frp, NULL); 3113 if (frp->fr_height + extra_lines < h) 3114 { 3115 extra_lines += frp->fr_height - h; 3116 frame_new_height(frp, h, topfirst, wfh); 3117 } 3118 else 3119 { 3120 frame_new_height(frp, frp->fr_height + extra_lines, 3121 topfirst, wfh); 3122 break; 3123 } 3124 if (topfirst) 3125 { 3126 do 3127 frp = frp->fr_next; 3128 while (wfh && frp != NULL && frame_fixed_height(frp)); 3129 } 3130 else 3131 { 3132 do 3133 frp = frp->fr_prev; 3134 while (wfh && frp != NULL && frame_fixed_height(frp)); 3135 } 3136 // Increase "height" if we could not reduce enough frames. 3137 if (frp == NULL) 3138 height -= extra_lines; 3139 } 3140 } 3141 else if (extra_lines > 0) 3142 { 3143 // increase height of bottom or top frame 3144 frame_new_height(frp, frp->fr_height + extra_lines, topfirst, wfh); 3145 } 3146 } 3147 topfrp->fr_height = height; 3148 } 3149 3150 /* 3151 * Return TRUE if height of frame "frp" should not be changed because of 3152 * the 'winfixheight' option. 3153 */ 3154 static int 3155 frame_fixed_height(frame_T *frp) 3156 { 3157 // frame with one window: fixed height if 'winfixheight' set. 3158 if (frp->fr_win != NULL) 3159 return frp->fr_win->w_p_wfh; 3160 3161 if (frp->fr_layout == FR_ROW) 3162 { 3163 // The frame is fixed height if one of the frames in the row is fixed 3164 // height. 3165 FOR_ALL_FRAMES(frp, frp->fr_child) 3166 if (frame_fixed_height(frp)) 3167 return TRUE; 3168 return FALSE; 3169 } 3170 3171 // frp->fr_layout == FR_COL: The frame is fixed height if all of the 3172 // frames in the row are fixed height. 3173 FOR_ALL_FRAMES(frp, frp->fr_child) 3174 if (!frame_fixed_height(frp)) 3175 return FALSE; 3176 return TRUE; 3177 } 3178 3179 /* 3180 * Return TRUE if width of frame "frp" should not be changed because of 3181 * the 'winfixwidth' option. 3182 */ 3183 static int 3184 frame_fixed_width(frame_T *frp) 3185 { 3186 // frame with one window: fixed width if 'winfixwidth' set. 3187 if (frp->fr_win != NULL) 3188 return frp->fr_win->w_p_wfw; 3189 3190 if (frp->fr_layout == FR_COL) 3191 { 3192 // The frame is fixed width if one of the frames in the row is fixed 3193 // width. 3194 FOR_ALL_FRAMES(frp, frp->fr_child) 3195 if (frame_fixed_width(frp)) 3196 return TRUE; 3197 return FALSE; 3198 } 3199 3200 // frp->fr_layout == FR_ROW: The frame is fixed width if all of the 3201 // frames in the row are fixed width. 3202 FOR_ALL_FRAMES(frp, frp->fr_child) 3203 if (!frame_fixed_width(frp)) 3204 return FALSE; 3205 return TRUE; 3206 } 3207 3208 /* 3209 * Add a status line to windows at the bottom of "frp". 3210 * Note: Does not check if there is room! 3211 */ 3212 static void 3213 frame_add_statusline(frame_T *frp) 3214 { 3215 win_T *wp; 3216 3217 if (frp->fr_layout == FR_LEAF) 3218 { 3219 wp = frp->fr_win; 3220 if (wp->w_status_height == 0) 3221 { 3222 if (wp->w_height > 0) // don't make it negative 3223 --wp->w_height; 3224 wp->w_status_height = STATUS_HEIGHT; 3225 } 3226 } 3227 else if (frp->fr_layout == FR_ROW) 3228 { 3229 // Handle all the frames in the row. 3230 FOR_ALL_FRAMES(frp, frp->fr_child) 3231 frame_add_statusline(frp); 3232 } 3233 else // frp->fr_layout == FR_COL 3234 { 3235 // Only need to handle the last frame in the column. 3236 for (frp = frp->fr_child; frp->fr_next != NULL; frp = frp->fr_next) 3237 ; 3238 frame_add_statusline(frp); 3239 } 3240 } 3241 3242 /* 3243 * Set width of a frame. Handles recursively going through contained frames. 3244 * May remove separator line for windows at the right side (for win_close()). 3245 */ 3246 static void 3247 frame_new_width( 3248 frame_T *topfrp, 3249 int width, 3250 int leftfirst, // resize leftmost contained frame first 3251 int wfw) // obey 'winfixwidth' when there is a choice; 3252 // may cause the width not to be set 3253 { 3254 frame_T *frp; 3255 int extra_cols; 3256 int w; 3257 win_T *wp; 3258 3259 if (topfrp->fr_layout == FR_LEAF) 3260 { 3261 // Simple case: just one window. 3262 wp = topfrp->fr_win; 3263 // Find out if there are any windows right of this one. 3264 for (frp = topfrp; frp->fr_parent != NULL; frp = frp->fr_parent) 3265 if (frp->fr_parent->fr_layout == FR_ROW && frp->fr_next != NULL) 3266 break; 3267 if (frp->fr_parent == NULL) 3268 wp->w_vsep_width = 0; 3269 win_new_width(wp, width - wp->w_vsep_width); 3270 } 3271 else if (topfrp->fr_layout == FR_COL) 3272 { 3273 do 3274 { 3275 // All frames in this column get the same new width. 3276 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3277 { 3278 frame_new_width(frp, width, leftfirst, wfw); 3279 if (frp->fr_width > width) 3280 { 3281 // Could not fit the windows, make whole column wider. 3282 width = frp->fr_width; 3283 break; 3284 } 3285 } 3286 } while (frp != NULL); 3287 } 3288 else // fr_layout == FR_ROW 3289 { 3290 // Complicated case: Resize a row of frames. Resize the rightmost 3291 // frame first, frames left of it when needed. 3292 3293 frp = topfrp->fr_child; 3294 if (wfw) 3295 // Advance past frames with one window with 'wfw' set. 3296 while (frame_fixed_width(frp)) 3297 { 3298 frp = frp->fr_next; 3299 if (frp == NULL) 3300 return; // no frame without 'wfw', give up 3301 } 3302 if (!leftfirst) 3303 { 3304 // Find the rightmost frame of this row 3305 while (frp->fr_next != NULL) 3306 frp = frp->fr_next; 3307 if (wfw) 3308 // Advance back for frames with one window with 'wfw' set. 3309 while (frame_fixed_width(frp)) 3310 frp = frp->fr_prev; 3311 } 3312 3313 extra_cols = width - topfrp->fr_width; 3314 if (extra_cols < 0) 3315 { 3316 // reduce frame width, rightmost frame first 3317 while (frp != NULL) 3318 { 3319 w = frame_minwidth(frp, NULL); 3320 if (frp->fr_width + extra_cols < w) 3321 { 3322 extra_cols += frp->fr_width - w; 3323 frame_new_width(frp, w, leftfirst, wfw); 3324 } 3325 else 3326 { 3327 frame_new_width(frp, frp->fr_width + extra_cols, 3328 leftfirst, wfw); 3329 break; 3330 } 3331 if (leftfirst) 3332 { 3333 do 3334 frp = frp->fr_next; 3335 while (wfw && frp != NULL && frame_fixed_width(frp)); 3336 } 3337 else 3338 { 3339 do 3340 frp = frp->fr_prev; 3341 while (wfw && frp != NULL && frame_fixed_width(frp)); 3342 } 3343 // Increase "width" if we could not reduce enough frames. 3344 if (frp == NULL) 3345 width -= extra_cols; 3346 } 3347 } 3348 else if (extra_cols > 0) 3349 { 3350 // increase width of rightmost frame 3351 frame_new_width(frp, frp->fr_width + extra_cols, leftfirst, wfw); 3352 } 3353 } 3354 topfrp->fr_width = width; 3355 } 3356 3357 /* 3358 * Add the vertical separator to windows at the right side of "frp". 3359 * Note: Does not check if there is room! 3360 */ 3361 static void 3362 frame_add_vsep(frame_T *frp) 3363 { 3364 win_T *wp; 3365 3366 if (frp->fr_layout == FR_LEAF) 3367 { 3368 wp = frp->fr_win; 3369 if (wp->w_vsep_width == 0) 3370 { 3371 if (wp->w_width > 0) // don't make it negative 3372 --wp->w_width; 3373 wp->w_vsep_width = 1; 3374 } 3375 } 3376 else if (frp->fr_layout == FR_COL) 3377 { 3378 // Handle all the frames in the column. 3379 FOR_ALL_FRAMES(frp, frp->fr_child) 3380 frame_add_vsep(frp); 3381 } 3382 else // frp->fr_layout == FR_ROW 3383 { 3384 // Only need to handle the last frame in the row. 3385 frp = frp->fr_child; 3386 while (frp->fr_next != NULL) 3387 frp = frp->fr_next; 3388 frame_add_vsep(frp); 3389 } 3390 } 3391 3392 /* 3393 * Set frame width from the window it contains. 3394 */ 3395 static void 3396 frame_fix_width(win_T *wp) 3397 { 3398 wp->w_frame->fr_width = wp->w_width + wp->w_vsep_width; 3399 } 3400 3401 /* 3402 * Set frame height from the window it contains. 3403 */ 3404 static void 3405 frame_fix_height(win_T *wp) 3406 { 3407 wp->w_frame->fr_height = VISIBLE_HEIGHT(wp) + wp->w_status_height; 3408 } 3409 3410 /* 3411 * Compute the minimal height for frame "topfrp". 3412 * Uses the 'winminheight' option. 3413 * When "next_curwin" isn't NULL, use p_wh for this window. 3414 * When "next_curwin" is NOWIN, don't use at least one line for the current 3415 * window. 3416 */ 3417 static int 3418 frame_minheight(frame_T *topfrp, win_T *next_curwin) 3419 { 3420 frame_T *frp; 3421 int m; 3422 int n; 3423 3424 if (topfrp->fr_win != NULL) 3425 { 3426 if (topfrp->fr_win == next_curwin) 3427 m = p_wh + topfrp->fr_win->w_status_height; 3428 else 3429 { 3430 // window: minimal height of the window plus status line 3431 m = p_wmh + topfrp->fr_win->w_status_height; 3432 if (topfrp->fr_win == curwin && next_curwin == NULL) 3433 { 3434 // Current window is minimal one line high and WinBar is 3435 // visible. 3436 if (p_wmh == 0) 3437 ++m; 3438 m += WINBAR_HEIGHT(curwin); 3439 } 3440 } 3441 } 3442 else if (topfrp->fr_layout == FR_ROW) 3443 { 3444 // get the minimal height from each frame in this row 3445 m = 0; 3446 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3447 { 3448 n = frame_minheight(frp, next_curwin); 3449 if (n > m) 3450 m = n; 3451 } 3452 } 3453 else 3454 { 3455 // Add up the minimal heights for all frames in this column. 3456 m = 0; 3457 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3458 m += frame_minheight(frp, next_curwin); 3459 } 3460 3461 return m; 3462 } 3463 3464 /* 3465 * Compute the minimal width for frame "topfrp". 3466 * When "next_curwin" isn't NULL, use p_wiw for this window. 3467 * When "next_curwin" is NOWIN, don't use at least one column for the current 3468 * window. 3469 */ 3470 static int 3471 frame_minwidth( 3472 frame_T *topfrp, 3473 win_T *next_curwin) // use p_wh and p_wiw for next_curwin 3474 { 3475 frame_T *frp; 3476 int m, n; 3477 3478 if (topfrp->fr_win != NULL) 3479 { 3480 if (topfrp->fr_win == next_curwin) 3481 m = p_wiw + topfrp->fr_win->w_vsep_width; 3482 else 3483 { 3484 // window: minimal width of the window plus separator column 3485 m = p_wmw + topfrp->fr_win->w_vsep_width; 3486 // Current window is minimal one column wide 3487 if (p_wmw == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3488 ++m; 3489 } 3490 } 3491 else if (topfrp->fr_layout == FR_COL) 3492 { 3493 // get the minimal width from each frame in this column 3494 m = 0; 3495 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3496 { 3497 n = frame_minwidth(frp, next_curwin); 3498 if (n > m) 3499 m = n; 3500 } 3501 } 3502 else 3503 { 3504 // Add up the minimal widths for all frames in this row. 3505 m = 0; 3506 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3507 m += frame_minwidth(frp, next_curwin); 3508 } 3509 3510 return m; 3511 } 3512 3513 3514 /* 3515 * Try to close all windows except current one. 3516 * Buffers in the other windows become hidden if 'hidden' is set, or '!' is 3517 * used and the buffer was modified. 3518 * 3519 * Used by ":bdel" and ":only". 3520 */ 3521 void 3522 close_others( 3523 int message, 3524 int forceit) // always hide all other windows 3525 { 3526 win_T *wp; 3527 win_T *nextwp; 3528 int r; 3529 3530 if (one_window()) 3531 { 3532 if (message && !autocmd_busy) 3533 msg(_(m_onlyone)); 3534 return; 3535 } 3536 3537 // Be very careful here: autocommands may change the window layout. 3538 for (wp = firstwin; win_valid(wp); wp = nextwp) 3539 { 3540 nextwp = wp->w_next; 3541 if (wp != curwin) // don't close current window 3542 { 3543 3544 // Check if it's allowed to abandon this window 3545 r = can_abandon(wp->w_buffer, forceit); 3546 if (!win_valid(wp)) // autocommands messed wp up 3547 { 3548 nextwp = firstwin; 3549 continue; 3550 } 3551 if (!r) 3552 { 3553 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 3554 if (message && (p_confirm || cmdmod.confirm) && p_write) 3555 { 3556 dialog_changed(wp->w_buffer, FALSE); 3557 if (!win_valid(wp)) // autocommands messed wp up 3558 { 3559 nextwp = firstwin; 3560 continue; 3561 } 3562 } 3563 if (bufIsChanged(wp->w_buffer)) 3564 #endif 3565 continue; 3566 } 3567 win_close(wp, !buf_hide(wp->w_buffer) 3568 && !bufIsChanged(wp->w_buffer)); 3569 } 3570 } 3571 3572 if (message && !ONE_WINDOW) 3573 emsg(_("E445: Other window contains changes")); 3574 } 3575 3576 static void 3577 win_init_empty(win_T *wp) 3578 { 3579 redraw_win_later(wp, NOT_VALID); 3580 wp->w_lines_valid = 0; 3581 wp->w_cursor.lnum = 1; 3582 wp->w_curswant = wp->w_cursor.col = 0; 3583 wp->w_cursor.coladd = 0; 3584 wp->w_pcmark.lnum = 1; // pcmark not cleared but set to line 1 3585 wp->w_pcmark.col = 0; 3586 wp->w_prev_pcmark.lnum = 0; 3587 wp->w_prev_pcmark.col = 0; 3588 wp->w_topline = 1; 3589 #ifdef FEAT_DIFF 3590 wp->w_topfill = 0; 3591 #endif 3592 wp->w_botline = 2; 3593 #if defined(FEAT_SYN_HL) || defined(FEAT_SPELL) 3594 wp->w_s = &wp->w_buffer->b_s; 3595 #endif 3596 } 3597 3598 /* 3599 * Init the current window "curwin". 3600 * Called when a new file is being edited. 3601 */ 3602 void 3603 curwin_init(void) 3604 { 3605 win_init_empty(curwin); 3606 } 3607 3608 /* 3609 * Allocate the first window and put an empty buffer in it. 3610 * Called from main(). 3611 * Return FAIL when something goes wrong (out of memory). 3612 */ 3613 int 3614 win_alloc_first(void) 3615 { 3616 if (win_alloc_firstwin(NULL) == FAIL) 3617 return FAIL; 3618 3619 first_tabpage = alloc_tabpage(); 3620 if (first_tabpage == NULL) 3621 return FAIL; 3622 first_tabpage->tp_topframe = topframe; 3623 curtab = first_tabpage; 3624 curtab->tp_firstwin = firstwin; 3625 curtab->tp_lastwin = lastwin; 3626 curtab->tp_curwin = curwin; 3627 3628 return OK; 3629 } 3630 3631 /* 3632 * Allocate and init a window that is not a regular window. 3633 * This can only be done after the first window is fully initialized, thus it 3634 * can't be in win_alloc_first(). 3635 */ 3636 win_T * 3637 win_alloc_popup_win(void) 3638 { 3639 win_T *wp; 3640 3641 wp = win_alloc(NULL, TRUE); 3642 if (wp != NULL) 3643 { 3644 // We need to initialize options with something, using the current 3645 // window makes most sense. 3646 win_init_some(wp, curwin); 3647 3648 RESET_BINDING(wp); 3649 new_frame(wp); 3650 } 3651 return wp; 3652 } 3653 3654 /* 3655 * Initialize window "wp" to display buffer "buf". 3656 */ 3657 void 3658 win_init_popup_win(win_T *wp, buf_T *buf) 3659 { 3660 wp->w_buffer = buf; 3661 ++buf->b_nwindows; 3662 win_init_empty(wp); // set cursor and topline to safe values 3663 3664 // Make sure w_localdir and globaldir are NULL to avoid a chdir() in 3665 // win_enter_ext(). 3666 VIM_CLEAR(wp->w_localdir); 3667 } 3668 3669 /* 3670 * Allocate the first window or the first window in a new tab page. 3671 * When "oldwin" is NULL create an empty buffer for it. 3672 * When "oldwin" is not NULL copy info from it to the new window. 3673 * Return FAIL when something goes wrong (out of memory). 3674 */ 3675 static int 3676 win_alloc_firstwin(win_T *oldwin) 3677 { 3678 curwin = win_alloc(NULL, FALSE); 3679 if (oldwin == NULL) 3680 { 3681 // Very first window, need to create an empty buffer for it and 3682 // initialize from scratch. 3683 curbuf = buflist_new(NULL, NULL, 1L, BLN_LISTED); 3684 if (curwin == NULL || curbuf == NULL) 3685 return FAIL; 3686 curwin->w_buffer = curbuf; 3687 #ifdef FEAT_SYN_HL 3688 curwin->w_s = &(curbuf->b_s); 3689 #endif 3690 curbuf->b_nwindows = 1; // there is one window 3691 curwin->w_alist = &global_alist; 3692 curwin_init(); // init current window 3693 } 3694 else 3695 { 3696 // First window in new tab page, initialize it from "oldwin". 3697 win_init(curwin, oldwin, 0); 3698 3699 // We don't want cursor- and scroll-binding in the first window. 3700 RESET_BINDING(curwin); 3701 } 3702 3703 new_frame(curwin); 3704 if (curwin->w_frame == NULL) 3705 return FAIL; 3706 topframe = curwin->w_frame; 3707 topframe->fr_width = Columns; 3708 topframe->fr_height = Rows - p_ch; 3709 3710 return OK; 3711 } 3712 3713 /* 3714 * Create a frame for window "wp". 3715 */ 3716 static void 3717 new_frame(win_T *wp) 3718 { 3719 frame_T *frp = ALLOC_CLEAR_ONE(frame_T); 3720 3721 wp->w_frame = frp; 3722 if (frp != NULL) 3723 { 3724 frp->fr_layout = FR_LEAF; 3725 frp->fr_win = wp; 3726 } 3727 } 3728 3729 /* 3730 * Initialize the window and frame size to the maximum. 3731 */ 3732 void 3733 win_init_size(void) 3734 { 3735 firstwin->w_height = ROWS_AVAIL; 3736 topframe->fr_height = ROWS_AVAIL; 3737 firstwin->w_width = Columns; 3738 topframe->fr_width = Columns; 3739 } 3740 3741 /* 3742 * Allocate a new tabpage_T and init the values. 3743 * Returns NULL when out of memory. 3744 */ 3745 static tabpage_T * 3746 alloc_tabpage(void) 3747 { 3748 tabpage_T *tp; 3749 # ifdef FEAT_GUI 3750 int i; 3751 # endif 3752 3753 3754 tp = ALLOC_CLEAR_ONE(tabpage_T); 3755 if (tp == NULL) 3756 return NULL; 3757 3758 # ifdef FEAT_EVAL 3759 // init t: variables 3760 tp->tp_vars = dict_alloc(); 3761 if (tp->tp_vars == NULL) 3762 { 3763 vim_free(tp); 3764 return NULL; 3765 } 3766 init_var_dict(tp->tp_vars, &tp->tp_winvar, VAR_SCOPE); 3767 # endif 3768 3769 # ifdef FEAT_GUI 3770 for (i = 0; i < 3; i++) 3771 tp->tp_prev_which_scrollbars[i] = -1; 3772 # endif 3773 # ifdef FEAT_DIFF 3774 tp->tp_diff_invalid = TRUE; 3775 # endif 3776 tp->tp_ch_used = p_ch; 3777 3778 return tp; 3779 } 3780 3781 void 3782 free_tabpage(tabpage_T *tp) 3783 { 3784 int idx; 3785 3786 # ifdef FEAT_DIFF 3787 diff_clear(tp); 3788 # endif 3789 # ifdef FEAT_PROP_POPUP 3790 while (tp->tp_first_popupwin != NULL) 3791 popup_close_tabpage(tp, tp->tp_first_popupwin->w_id); 3792 #endif 3793 for (idx = 0; idx < SNAP_COUNT; ++idx) 3794 clear_snapshot(tp, idx); 3795 #ifdef FEAT_EVAL 3796 vars_clear(&tp->tp_vars->dv_hashtab); // free all t: variables 3797 hash_init(&tp->tp_vars->dv_hashtab); 3798 unref_var_dict(tp->tp_vars); 3799 #endif 3800 3801 vim_free(tp->tp_localdir); 3802 3803 #ifdef FEAT_PYTHON 3804 python_tabpage_free(tp); 3805 #endif 3806 3807 #ifdef FEAT_PYTHON3 3808 python3_tabpage_free(tp); 3809 #endif 3810 3811 vim_free(tp); 3812 } 3813 3814 /* 3815 * Create a new Tab page with one window. 3816 * It will edit the current buffer, like after ":split". 3817 * When "after" is 0 put it just after the current Tab page. 3818 * Otherwise put it just before tab page "after". 3819 * Return FAIL or OK. 3820 */ 3821 int 3822 win_new_tabpage(int after) 3823 { 3824 tabpage_T *tp = curtab; 3825 tabpage_T *newtp; 3826 int n; 3827 3828 newtp = alloc_tabpage(); 3829 if (newtp == NULL) 3830 return FAIL; 3831 3832 // Remember the current windows in this Tab page. 3833 if (leave_tabpage(curbuf, TRUE) == FAIL) 3834 { 3835 vim_free(newtp); 3836 return FAIL; 3837 } 3838 curtab = newtp; 3839 3840 newtp->tp_localdir = (tp->tp_localdir == NULL) 3841 ? NULL : vim_strsave(tp->tp_localdir); 3842 // Create a new empty window. 3843 if (win_alloc_firstwin(tp->tp_curwin) == OK) 3844 { 3845 // Make the new Tab page the new topframe. 3846 if (after == 1) 3847 { 3848 // New tab page becomes the first one. 3849 newtp->tp_next = first_tabpage; 3850 first_tabpage = newtp; 3851 } 3852 else 3853 { 3854 if (after > 0) 3855 { 3856 // Put new tab page before tab page "after". 3857 n = 2; 3858 for (tp = first_tabpage; tp->tp_next != NULL 3859 && n < after; tp = tp->tp_next) 3860 ++n; 3861 } 3862 newtp->tp_next = tp->tp_next; 3863 tp->tp_next = newtp; 3864 } 3865 newtp->tp_firstwin = newtp->tp_lastwin = newtp->tp_curwin = curwin; 3866 3867 win_init_size(); 3868 firstwin->w_winrow = tabline_height(); 3869 win_comp_scroll(curwin); 3870 3871 newtp->tp_topframe = topframe; 3872 last_status(FALSE); 3873 3874 #if defined(FEAT_GUI) 3875 // When 'guioptions' includes 'L' or 'R' may have to remove or add 3876 // scrollbars. Have to update them anyway. 3877 gui_may_update_scrollbars(); 3878 #endif 3879 #ifdef FEAT_JOB_CHANNEL 3880 entering_window(curwin); 3881 #endif 3882 3883 redraw_all_later(NOT_VALID); 3884 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 3885 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 3886 apply_autocmds(EVENT_TABNEW, NULL, NULL, FALSE, curbuf); 3887 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3888 return OK; 3889 } 3890 3891 // Failed, get back the previous Tab page 3892 enter_tabpage(curtab, curbuf, TRUE, TRUE); 3893 return FAIL; 3894 } 3895 3896 /* 3897 * Open a new tab page if ":tab cmd" was used. It will edit the same buffer, 3898 * like with ":split". 3899 * Returns OK if a new tab page was created, FAIL otherwise. 3900 */ 3901 static int 3902 may_open_tabpage(void) 3903 { 3904 int n = (cmdmod.tab == 0) ? postponed_split_tab : cmdmod.tab; 3905 3906 if (n != 0) 3907 { 3908 cmdmod.tab = 0; // reset it to avoid doing it twice 3909 postponed_split_tab = 0; 3910 return win_new_tabpage(n); 3911 } 3912 return FAIL; 3913 } 3914 3915 /* 3916 * Create up to "maxcount" tabpages with empty windows. 3917 * Returns the number of resulting tab pages. 3918 */ 3919 int 3920 make_tabpages(int maxcount) 3921 { 3922 int count = maxcount; 3923 int todo; 3924 3925 // Limit to 'tabpagemax' tabs. 3926 if (count > p_tpm) 3927 count = p_tpm; 3928 3929 /* 3930 * Don't execute autocommands while creating the tab pages. Must do that 3931 * when putting the buffers in the windows. 3932 */ 3933 block_autocmds(); 3934 3935 for (todo = count - 1; todo > 0; --todo) 3936 if (win_new_tabpage(0) == FAIL) 3937 break; 3938 3939 unblock_autocmds(); 3940 3941 // return actual number of tab pages 3942 return (count - todo); 3943 } 3944 3945 /* 3946 * Return TRUE when "tpc" points to a valid tab page. 3947 */ 3948 int 3949 valid_tabpage(tabpage_T *tpc) 3950 { 3951 tabpage_T *tp; 3952 3953 FOR_ALL_TABPAGES(tp) 3954 if (tp == tpc) 3955 return TRUE; 3956 return FALSE; 3957 } 3958 3959 /* 3960 * Return TRUE when "tpc" points to a valid tab page and at least one window is 3961 * valid. 3962 */ 3963 int 3964 valid_tabpage_win(tabpage_T *tpc) 3965 { 3966 tabpage_T *tp; 3967 win_T *wp; 3968 3969 FOR_ALL_TABPAGES(tp) 3970 { 3971 if (tp == tpc) 3972 { 3973 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 3974 { 3975 if (win_valid_any_tab(wp)) 3976 return TRUE; 3977 } 3978 return FALSE; 3979 } 3980 } 3981 // shouldn't happen 3982 return FALSE; 3983 } 3984 3985 /* 3986 * Close tabpage "tab", assuming it has no windows in it. 3987 * There must be another tabpage or this will crash. 3988 */ 3989 void 3990 close_tabpage(tabpage_T *tab) 3991 { 3992 tabpage_T *ptp; 3993 3994 if (tab == first_tabpage) 3995 { 3996 first_tabpage = tab->tp_next; 3997 ptp = first_tabpage; 3998 } 3999 else 4000 { 4001 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tab; 4002 ptp = ptp->tp_next) 4003 ; 4004 assert(ptp != NULL); 4005 ptp->tp_next = tab->tp_next; 4006 } 4007 4008 goto_tabpage_tp(ptp, FALSE, FALSE); 4009 free_tabpage(tab); 4010 } 4011 4012 /* 4013 * Find tab page "n" (first one is 1). Returns NULL when not found. 4014 */ 4015 tabpage_T * 4016 find_tabpage(int n) 4017 { 4018 tabpage_T *tp; 4019 int i = 1; 4020 4021 if (n == 0) 4022 return curtab; 4023 4024 for (tp = first_tabpage; tp != NULL && i != n; tp = tp->tp_next) 4025 ++i; 4026 return tp; 4027 } 4028 4029 /* 4030 * Get index of tab page "tp". First one has index 1. 4031 * When not found returns number of tab pages plus one. 4032 */ 4033 int 4034 tabpage_index(tabpage_T *ftp) 4035 { 4036 int i = 1; 4037 tabpage_T *tp; 4038 4039 for (tp = first_tabpage; tp != NULL && tp != ftp; tp = tp->tp_next) 4040 ++i; 4041 return i; 4042 } 4043 4044 /* 4045 * Prepare for leaving the current tab page. 4046 * When autocommands change "curtab" we don't leave the tab page and return 4047 * FAIL. 4048 * Careful: When OK is returned need to get a new tab page very very soon! 4049 */ 4050 static int 4051 leave_tabpage( 4052 buf_T *new_curbuf UNUSED, // what is going to be the new curbuf, 4053 // NULL if unknown 4054 int trigger_leave_autocmds UNUSED) 4055 { 4056 tabpage_T *tp = curtab; 4057 4058 #ifdef FEAT_JOB_CHANNEL 4059 leaving_window(curwin); 4060 #endif 4061 reset_VIsual_and_resel(); // stop Visual mode 4062 if (trigger_leave_autocmds) 4063 { 4064 if (new_curbuf != curbuf) 4065 { 4066 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4067 if (curtab != tp) 4068 return FAIL; 4069 } 4070 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4071 if (curtab != tp) 4072 return FAIL; 4073 apply_autocmds(EVENT_TABLEAVE, NULL, NULL, FALSE, curbuf); 4074 if (curtab != tp) 4075 return FAIL; 4076 } 4077 #if defined(FEAT_GUI) 4078 // Remove the scrollbars. They may be added back later. 4079 if (gui.in_use) 4080 gui_remove_scrollbars(); 4081 #endif 4082 tp->tp_curwin = curwin; 4083 tp->tp_prevwin = prevwin; 4084 tp->tp_firstwin = firstwin; 4085 tp->tp_lastwin = lastwin; 4086 tp->tp_old_Rows = Rows; 4087 tp->tp_old_Columns = Columns; 4088 firstwin = NULL; 4089 lastwin = NULL; 4090 return OK; 4091 } 4092 4093 /* 4094 * Start using tab page "tp". 4095 * Only to be used after leave_tabpage() or freeing the current tab page. 4096 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4097 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4098 */ 4099 static void 4100 enter_tabpage( 4101 tabpage_T *tp, 4102 buf_T *old_curbuf UNUSED, 4103 int trigger_enter_autocmds, 4104 int trigger_leave_autocmds) 4105 { 4106 int row; 4107 int old_off = tp->tp_firstwin->w_winrow; 4108 win_T *next_prevwin = tp->tp_prevwin; 4109 4110 curtab = tp; 4111 firstwin = tp->tp_firstwin; 4112 lastwin = tp->tp_lastwin; 4113 topframe = tp->tp_topframe; 4114 4115 // We would like doing the TabEnter event first, but we don't have a 4116 // valid current window yet, which may break some commands. 4117 // This triggers autocommands, thus may make "tp" invalid. 4118 win_enter_ext(tp->tp_curwin, FALSE, TRUE, FALSE, 4119 trigger_enter_autocmds, trigger_leave_autocmds); 4120 prevwin = next_prevwin; 4121 4122 last_status(FALSE); // status line may appear or disappear 4123 row = win_comp_pos(); // recompute w_winrow for all windows 4124 #ifdef FEAT_DIFF 4125 diff_need_scrollbind = TRUE; 4126 #endif 4127 4128 // The tabpage line may have appeared or disappeared, may need to resize 4129 // the frames for that. When the Vim window was resized need to update 4130 // frame sizes too. Use the stored value of p_ch, so that it can be 4131 // different for each tab page. 4132 if (p_ch != curtab->tp_ch_used) 4133 clear_cmdline = TRUE; 4134 p_ch = curtab->tp_ch_used; 4135 4136 // When cmdheight is changed in a tab page with '<C-w>-', cmdline_row is 4137 // changed but p_ch and tp_ch_used are not changed. Thus we also need to 4138 // check cmdline_row. 4139 if ((row < cmdline_row) && (cmdline_row <= Rows - p_ch)) 4140 clear_cmdline = TRUE; 4141 4142 if (curtab->tp_old_Rows != Rows || (old_off != firstwin->w_winrow 4143 #ifdef FEAT_GUI_TABLINE 4144 && !gui_use_tabline() 4145 #endif 4146 )) 4147 shell_new_rows(); 4148 if (curtab->tp_old_Columns != Columns && starting == 0) 4149 shell_new_columns(); // update window widths 4150 4151 #if defined(FEAT_GUI) 4152 // When 'guioptions' includes 'L' or 'R' may have to remove or add 4153 // scrollbars. Have to update them anyway. 4154 gui_may_update_scrollbars(); 4155 #endif 4156 4157 // Apply autocommands after updating the display, when 'rows' and 4158 // 'columns' have been set correctly. 4159 if (trigger_enter_autocmds) 4160 { 4161 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 4162 if (old_curbuf != curbuf) 4163 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4164 } 4165 4166 redraw_all_later(NOT_VALID); 4167 } 4168 4169 /* 4170 * Go to tab page "n". For ":tab N" and "Ngt". 4171 * When "n" is 9999 go to the last tab page. 4172 */ 4173 void 4174 goto_tabpage(int n) 4175 { 4176 tabpage_T *tp = NULL; // shut up compiler 4177 tabpage_T *ttp; 4178 int i; 4179 4180 if (text_locked()) 4181 { 4182 // Not allowed when editing the command line. 4183 text_locked_msg(); 4184 return; 4185 } 4186 4187 // If there is only one it can't work. 4188 if (first_tabpage->tp_next == NULL) 4189 { 4190 if (n > 1) 4191 beep_flush(); 4192 return; 4193 } 4194 4195 if (n == 0) 4196 { 4197 // No count, go to next tab page, wrap around end. 4198 if (curtab->tp_next == NULL) 4199 tp = first_tabpage; 4200 else 4201 tp = curtab->tp_next; 4202 } 4203 else if (n < 0) 4204 { 4205 // "gT": go to previous tab page, wrap around end. "N gT" repeats 4206 // this N times. 4207 ttp = curtab; 4208 for (i = n; i < 0; ++i) 4209 { 4210 for (tp = first_tabpage; tp->tp_next != ttp && tp->tp_next != NULL; 4211 tp = tp->tp_next) 4212 ; 4213 ttp = tp; 4214 } 4215 } 4216 else if (n == 9999) 4217 { 4218 // Go to last tab page. 4219 for (tp = first_tabpage; tp->tp_next != NULL; tp = tp->tp_next) 4220 ; 4221 } 4222 else 4223 { 4224 // Go to tab page "n". 4225 tp = find_tabpage(n); 4226 if (tp == NULL) 4227 { 4228 beep_flush(); 4229 return; 4230 } 4231 } 4232 4233 goto_tabpage_tp(tp, TRUE, TRUE); 4234 4235 #ifdef FEAT_GUI_TABLINE 4236 if (gui_use_tabline()) 4237 gui_mch_set_curtab(tabpage_index(curtab)); 4238 #endif 4239 } 4240 4241 /* 4242 * Go to tabpage "tp". 4243 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4244 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4245 * Note: doesn't update the GUI tab. 4246 */ 4247 void 4248 goto_tabpage_tp( 4249 tabpage_T *tp, 4250 int trigger_enter_autocmds, 4251 int trigger_leave_autocmds) 4252 { 4253 // Don't repeat a message in another tab page. 4254 set_keep_msg(NULL, 0); 4255 4256 if (tp != curtab && leave_tabpage(tp->tp_curwin->w_buffer, 4257 trigger_leave_autocmds) == OK) 4258 { 4259 if (valid_tabpage(tp)) 4260 enter_tabpage(tp, curbuf, trigger_enter_autocmds, 4261 trigger_leave_autocmds); 4262 else 4263 enter_tabpage(curtab, curbuf, trigger_enter_autocmds, 4264 trigger_leave_autocmds); 4265 } 4266 } 4267 4268 /* 4269 * Enter window "wp" in tab page "tp". 4270 * Also updates the GUI tab. 4271 */ 4272 void 4273 goto_tabpage_win(tabpage_T *tp, win_T *wp) 4274 { 4275 goto_tabpage_tp(tp, TRUE, TRUE); 4276 if (curtab == tp && win_valid(wp)) 4277 { 4278 win_enter(wp, TRUE); 4279 # ifdef FEAT_GUI_TABLINE 4280 if (gui_use_tabline()) 4281 gui_mch_set_curtab(tabpage_index(curtab)); 4282 # endif 4283 } 4284 } 4285 4286 /* 4287 * Move the current tab page to after tab page "nr". 4288 */ 4289 void 4290 tabpage_move(int nr) 4291 { 4292 int n = 1; 4293 tabpage_T *tp, *tp_dst; 4294 4295 if (first_tabpage->tp_next == NULL) 4296 return; 4297 4298 for (tp = first_tabpage; tp->tp_next != NULL && n < nr; tp = tp->tp_next) 4299 ++n; 4300 4301 if (tp == curtab || (nr > 0 && tp->tp_next != NULL 4302 && tp->tp_next == curtab)) 4303 return; 4304 4305 tp_dst = tp; 4306 4307 // Remove the current tab page from the list of tab pages. 4308 if (curtab == first_tabpage) 4309 first_tabpage = curtab->tp_next; 4310 else 4311 { 4312 FOR_ALL_TABPAGES(tp) 4313 if (tp->tp_next == curtab) 4314 break; 4315 if (tp == NULL) // "cannot happen" 4316 return; 4317 tp->tp_next = curtab->tp_next; 4318 } 4319 4320 // Re-insert it at the specified position. 4321 if (nr <= 0) 4322 { 4323 curtab->tp_next = first_tabpage; 4324 first_tabpage = curtab; 4325 } 4326 else 4327 { 4328 curtab->tp_next = tp_dst->tp_next; 4329 tp_dst->tp_next = curtab; 4330 } 4331 4332 // Need to redraw the tabline. Tab page contents doesn't change. 4333 redraw_tabline = TRUE; 4334 } 4335 4336 4337 /* 4338 * Go to another window. 4339 * When jumping to another buffer, stop Visual mode. Do this before 4340 * changing windows so we can yank the selection into the '*' register. 4341 * When jumping to another window on the same buffer, adjust its cursor 4342 * position to keep the same Visual area. 4343 */ 4344 void 4345 win_goto(win_T *wp) 4346 { 4347 #ifdef FEAT_CONCEAL 4348 win_T *owp = curwin; 4349 #endif 4350 4351 #ifdef FEAT_PROP_POPUP 4352 if (ERROR_IF_ANY_POPUP_WINDOW) 4353 return; 4354 if (popup_is_popup(wp)) 4355 { 4356 emsg(_("E366: Not allowed to enter a popup window")); 4357 return; 4358 } 4359 #endif 4360 if (text_locked()) 4361 { 4362 beep_flush(); 4363 text_locked_msg(); 4364 return; 4365 } 4366 if (curbuf_locked()) 4367 return; 4368 4369 if (wp->w_buffer != curbuf) 4370 reset_VIsual_and_resel(); 4371 else if (VIsual_active) 4372 wp->w_cursor = curwin->w_cursor; 4373 4374 #ifdef FEAT_GUI 4375 need_mouse_correct = TRUE; 4376 #endif 4377 win_enter(wp, TRUE); 4378 4379 #ifdef FEAT_CONCEAL 4380 // Conceal cursor line in previous window, unconceal in current window. 4381 if (win_valid(owp) && owp->w_p_cole > 0 && !msg_scrolled) 4382 redrawWinline(owp, owp->w_cursor.lnum); 4383 if (curwin->w_p_cole > 0 && !msg_scrolled) 4384 need_cursor_line_redraw = TRUE; 4385 #endif 4386 } 4387 4388 #if defined(FEAT_PERL) || defined(PROTO) 4389 /* 4390 * Find window number "winnr" (counting top to bottom). 4391 */ 4392 win_T * 4393 win_find_nr(int winnr) 4394 { 4395 win_T *wp; 4396 4397 FOR_ALL_WINDOWS(wp) 4398 if (--winnr == 0) 4399 break; 4400 return wp; 4401 } 4402 #endif 4403 4404 #if ((defined(FEAT_PYTHON) || defined(FEAT_PYTHON3))) || defined(PROTO) 4405 /* 4406 * Find the tabpage for window "win". 4407 */ 4408 tabpage_T * 4409 win_find_tabpage(win_T *win) 4410 { 4411 win_T *wp; 4412 tabpage_T *tp; 4413 4414 FOR_ALL_TAB_WINDOWS(tp, wp) 4415 if (wp == win) 4416 return tp; 4417 return NULL; 4418 } 4419 #endif 4420 4421 /* 4422 * Get the above or below neighbor window of the specified window. 4423 * up - TRUE for the above neighbor 4424 * count - nth neighbor window 4425 * Returns the specified window if the neighbor is not found. 4426 */ 4427 win_T * 4428 win_vert_neighbor(tabpage_T *tp, win_T *wp, int up, long count) 4429 { 4430 frame_T *fr; 4431 frame_T *nfr; 4432 frame_T *foundfr; 4433 4434 #ifdef FEAT_PROP_POPUP 4435 if (popup_is_popup(wp)) 4436 // popups don't have neighbors. 4437 return NULL; 4438 #endif 4439 foundfr = wp->w_frame; 4440 while (count--) 4441 { 4442 /* 4443 * First go upwards in the tree of frames until we find a upwards or 4444 * downwards neighbor. 4445 */ 4446 fr = foundfr; 4447 for (;;) 4448 { 4449 if (fr == tp->tp_topframe) 4450 goto end; 4451 if (up) 4452 nfr = fr->fr_prev; 4453 else 4454 nfr = fr->fr_next; 4455 if (fr->fr_parent->fr_layout == FR_COL && nfr != NULL) 4456 break; 4457 fr = fr->fr_parent; 4458 } 4459 4460 /* 4461 * Now go downwards to find the bottom or top frame in it. 4462 */ 4463 for (;;) 4464 { 4465 if (nfr->fr_layout == FR_LEAF) 4466 { 4467 foundfr = nfr; 4468 break; 4469 } 4470 fr = nfr->fr_child; 4471 if (nfr->fr_layout == FR_ROW) 4472 { 4473 // Find the frame at the cursor row. 4474 while (fr->fr_next != NULL 4475 && frame2win(fr)->w_wincol + fr->fr_width 4476 <= wp->w_wincol + wp->w_wcol) 4477 fr = fr->fr_next; 4478 } 4479 if (nfr->fr_layout == FR_COL && up) 4480 while (fr->fr_next != NULL) 4481 fr = fr->fr_next; 4482 nfr = fr; 4483 } 4484 } 4485 end: 4486 return foundfr != NULL ? foundfr->fr_win : NULL; 4487 } 4488 4489 /* 4490 * Move to window above or below "count" times. 4491 */ 4492 static void 4493 win_goto_ver( 4494 int up, // TRUE to go to win above 4495 long count) 4496 { 4497 win_T *win; 4498 4499 #ifdef FEAT_PROP_POPUP 4500 if (ERROR_IF_TERM_POPUP_WINDOW) 4501 return; 4502 #endif 4503 win = win_vert_neighbor(curtab, curwin, up, count); 4504 if (win != NULL) 4505 win_goto(win); 4506 } 4507 4508 /* 4509 * Get the left or right neighbor window of the specified window. 4510 * left - TRUE for the left neighbor 4511 * count - nth neighbor window 4512 * Returns the specified window if the neighbor is not found. 4513 */ 4514 win_T * 4515 win_horz_neighbor(tabpage_T *tp, win_T *wp, int left, long count) 4516 { 4517 frame_T *fr; 4518 frame_T *nfr; 4519 frame_T *foundfr; 4520 4521 #ifdef FEAT_PROP_POPUP 4522 if (popup_is_popup(wp)) 4523 // popups don't have neighbors. 4524 return NULL; 4525 #endif 4526 foundfr = wp->w_frame; 4527 while (count--) 4528 { 4529 /* 4530 * First go upwards in the tree of frames until we find a left or 4531 * right neighbor. 4532 */ 4533 fr = foundfr; 4534 for (;;) 4535 { 4536 if (fr == tp->tp_topframe) 4537 goto end; 4538 if (left) 4539 nfr = fr->fr_prev; 4540 else 4541 nfr = fr->fr_next; 4542 if (fr->fr_parent->fr_layout == FR_ROW && nfr != NULL) 4543 break; 4544 fr = fr->fr_parent; 4545 } 4546 4547 /* 4548 * Now go downwards to find the leftmost or rightmost frame in it. 4549 */ 4550 for (;;) 4551 { 4552 if (nfr->fr_layout == FR_LEAF) 4553 { 4554 foundfr = nfr; 4555 break; 4556 } 4557 fr = nfr->fr_child; 4558 if (nfr->fr_layout == FR_COL) 4559 { 4560 // Find the frame at the cursor row. 4561 while (fr->fr_next != NULL 4562 && frame2win(fr)->w_winrow + fr->fr_height 4563 <= wp->w_winrow + wp->w_wrow) 4564 fr = fr->fr_next; 4565 } 4566 if (nfr->fr_layout == FR_ROW && left) 4567 while (fr->fr_next != NULL) 4568 fr = fr->fr_next; 4569 nfr = fr; 4570 } 4571 } 4572 end: 4573 return foundfr != NULL ? foundfr->fr_win : NULL; 4574 } 4575 4576 /* 4577 * Move to left or right window. 4578 */ 4579 static void 4580 win_goto_hor( 4581 int left, // TRUE to go to left win 4582 long count) 4583 { 4584 win_T *win; 4585 4586 #ifdef FEAT_PROP_POPUP 4587 if (ERROR_IF_TERM_POPUP_WINDOW) 4588 return; 4589 #endif 4590 win = win_horz_neighbor(curtab, curwin, left, count); 4591 if (win != NULL) 4592 win_goto(win); 4593 } 4594 4595 /* 4596 * Make window "wp" the current window. 4597 */ 4598 void 4599 win_enter(win_T *wp, int undo_sync) 4600 { 4601 win_enter_ext(wp, undo_sync, FALSE, FALSE, TRUE, TRUE); 4602 } 4603 4604 /* 4605 * Make window wp the current window. 4606 * Can be called with "curwin_invalid" TRUE, which means that curwin has just 4607 * been closed and isn't valid. 4608 */ 4609 static void 4610 win_enter_ext( 4611 win_T *wp, 4612 int undo_sync, 4613 int curwin_invalid, 4614 int trigger_new_autocmds, 4615 int trigger_enter_autocmds, 4616 int trigger_leave_autocmds) 4617 { 4618 int other_buffer = FALSE; 4619 4620 if (wp == curwin && !curwin_invalid) // nothing to do 4621 return; 4622 4623 #ifdef FEAT_JOB_CHANNEL 4624 if (!curwin_invalid) 4625 leaving_window(curwin); 4626 #endif 4627 4628 if (!curwin_invalid && trigger_leave_autocmds) 4629 { 4630 /* 4631 * Be careful: If autocommands delete the window, return now. 4632 */ 4633 if (wp->w_buffer != curbuf) 4634 { 4635 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4636 other_buffer = TRUE; 4637 if (!win_valid(wp)) 4638 return; 4639 } 4640 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4641 if (!win_valid(wp)) 4642 return; 4643 #ifdef FEAT_EVAL 4644 // autocmds may abort script processing 4645 if (aborting()) 4646 return; 4647 #endif 4648 } 4649 4650 // sync undo before leaving the current buffer 4651 if (undo_sync && curbuf != wp->w_buffer) 4652 u_sync(FALSE); 4653 4654 // Might need to scroll the old window before switching, e.g., when the 4655 // cursor was moved. 4656 update_topline(); 4657 4658 // may have to copy the buffer options when 'cpo' contains 'S' 4659 if (wp->w_buffer != curbuf) 4660 buf_copy_options(wp->w_buffer, BCO_ENTER | BCO_NOHELP); 4661 if (!curwin_invalid) 4662 { 4663 prevwin = curwin; // remember for CTRL-W p 4664 curwin->w_redr_status = TRUE; 4665 } 4666 curwin = wp; 4667 curbuf = wp->w_buffer; 4668 check_cursor(); 4669 if (!virtual_active()) 4670 curwin->w_cursor.coladd = 0; 4671 changed_line_abv_curs(); // assume cursor position needs updating 4672 4673 if (curwin->w_localdir != NULL || curtab->tp_localdir != NULL) 4674 { 4675 char_u *dirname; 4676 4677 // Window or tab has a local directory: Save current directory as 4678 // global directory (unless that was done already) and change to the 4679 // local directory. 4680 if (globaldir == NULL) 4681 { 4682 char_u cwd[MAXPATHL]; 4683 4684 if (mch_dirname(cwd, MAXPATHL) == OK) 4685 globaldir = vim_strsave(cwd); 4686 } 4687 if (curwin->w_localdir != NULL) 4688 dirname = curwin->w_localdir; 4689 else 4690 dirname = curtab->tp_localdir; 4691 4692 if (mch_chdir((char *)dirname) == 0) 4693 shorten_fnames(TRUE); 4694 } 4695 else if (globaldir != NULL) 4696 { 4697 // Window doesn't have a local directory and we are not in the global 4698 // directory: Change to the global directory. 4699 vim_ignored = mch_chdir((char *)globaldir); 4700 VIM_CLEAR(globaldir); 4701 shorten_fnames(TRUE); 4702 } 4703 4704 #ifdef FEAT_JOB_CHANNEL 4705 entering_window(curwin); 4706 #endif 4707 // Careful: autocommands may close the window and make "wp" invalid 4708 if (trigger_new_autocmds) 4709 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 4710 if (trigger_enter_autocmds) 4711 { 4712 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 4713 if (other_buffer) 4714 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4715 } 4716 4717 #ifdef FEAT_TITLE 4718 maketitle(); 4719 #endif 4720 curwin->w_redr_status = TRUE; 4721 #ifdef FEAT_TERMINAL 4722 if (bt_terminal(curwin->w_buffer)) 4723 // terminal is likely in another mode 4724 redraw_mode = TRUE; 4725 #endif 4726 redraw_tabline = TRUE; 4727 if (restart_edit) 4728 redraw_later(VALID); // causes status line redraw 4729 4730 // set window height to desired minimal value 4731 if (curwin->w_height < p_wh && !curwin->w_p_wfh 4732 #ifdef FEAT_PROP_POPUP 4733 && !popup_is_popup(curwin) 4734 #endif 4735 ) 4736 win_setheight((int)p_wh); 4737 else if (curwin->w_height == 0) 4738 win_setheight(1); 4739 4740 // set window width to desired minimal value 4741 if (curwin->w_width < p_wiw && !curwin->w_p_wfw) 4742 win_setwidth((int)p_wiw); 4743 4744 setmouse(); // in case jumped to/from help buffer 4745 4746 // Change directories when the 'acd' option is set. 4747 DO_AUTOCHDIR; 4748 } 4749 4750 4751 /* 4752 * Jump to the first open window that contains buffer "buf", if one exists. 4753 * Returns a pointer to the window found, otherwise NULL. 4754 */ 4755 win_T * 4756 buf_jump_open_win(buf_T *buf) 4757 { 4758 win_T *wp = NULL; 4759 4760 if (curwin->w_buffer == buf) 4761 wp = curwin; 4762 else 4763 FOR_ALL_WINDOWS(wp) 4764 if (wp->w_buffer == buf) 4765 break; 4766 if (wp != NULL) 4767 win_enter(wp, FALSE); 4768 return wp; 4769 } 4770 4771 /* 4772 * Jump to the first open window in any tab page that contains buffer "buf", 4773 * if one exists. 4774 * Returns a pointer to the window found, otherwise NULL. 4775 */ 4776 win_T * 4777 buf_jump_open_tab(buf_T *buf) 4778 { 4779 win_T *wp = buf_jump_open_win(buf); 4780 tabpage_T *tp; 4781 4782 if (wp != NULL) 4783 return wp; 4784 4785 FOR_ALL_TABPAGES(tp) 4786 if (tp != curtab) 4787 { 4788 for (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next) 4789 if (wp->w_buffer == buf) 4790 break; 4791 if (wp != NULL) 4792 { 4793 goto_tabpage_win(tp, wp); 4794 if (curwin != wp) 4795 wp = NULL; // something went wrong 4796 break; 4797 } 4798 } 4799 return wp; 4800 } 4801 4802 static int last_win_id = LOWEST_WIN_ID - 1; 4803 4804 /* 4805 * Allocate a window structure and link it in the window list when "hidden" is 4806 * FALSE. 4807 */ 4808 static win_T * 4809 win_alloc(win_T *after UNUSED, int hidden UNUSED) 4810 { 4811 win_T *new_wp; 4812 4813 /* 4814 * allocate window structure and linesizes arrays 4815 */ 4816 new_wp = ALLOC_CLEAR_ONE(win_T); 4817 if (new_wp == NULL) 4818 return NULL; 4819 4820 if (win_alloc_lines(new_wp) == FAIL) 4821 { 4822 vim_free(new_wp); 4823 return NULL; 4824 } 4825 4826 new_wp->w_id = ++last_win_id; 4827 4828 #ifdef FEAT_EVAL 4829 // init w: variables 4830 new_wp->w_vars = dict_alloc(); 4831 if (new_wp->w_vars == NULL) 4832 { 4833 win_free_lsize(new_wp); 4834 vim_free(new_wp); 4835 return NULL; 4836 } 4837 init_var_dict(new_wp->w_vars, &new_wp->w_winvar, VAR_SCOPE); 4838 #endif 4839 4840 // Don't execute autocommands while the window is not properly 4841 // initialized yet. gui_create_scrollbar() may trigger a FocusGained 4842 // event. 4843 block_autocmds(); 4844 4845 /* 4846 * link the window in the window list 4847 */ 4848 if (!hidden) 4849 win_append(after, new_wp); 4850 new_wp->w_wincol = 0; 4851 new_wp->w_width = Columns; 4852 4853 // position the display and the cursor at the top of the file. 4854 new_wp->w_topline = 1; 4855 #ifdef FEAT_DIFF 4856 new_wp->w_topfill = 0; 4857 #endif 4858 new_wp->w_botline = 2; 4859 new_wp->w_cursor.lnum = 1; 4860 new_wp->w_scbind_pos = 1; 4861 4862 // use global option value for global-local options 4863 new_wp->w_p_so = -1; 4864 new_wp->w_p_siso = -1; 4865 4866 // We won't calculate w_fraction until resizing the window 4867 new_wp->w_fraction = 0; 4868 new_wp->w_prev_fraction_row = -1; 4869 4870 #ifdef FEAT_GUI 4871 if (gui.in_use) 4872 { 4873 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_LEFT], 4874 SBAR_LEFT, new_wp); 4875 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_RIGHT], 4876 SBAR_RIGHT, new_wp); 4877 } 4878 #endif 4879 #ifdef FEAT_FOLDING 4880 foldInitWin(new_wp); 4881 #endif 4882 unblock_autocmds(); 4883 #ifdef FEAT_SEARCH_EXTRA 4884 new_wp->w_match_head = NULL; 4885 new_wp->w_next_match_id = 4; 4886 #endif 4887 return new_wp; 4888 } 4889 4890 /* 4891 * Remove window 'wp' from the window list and free the structure. 4892 */ 4893 static void 4894 win_free( 4895 win_T *wp, 4896 tabpage_T *tp) // tab page "win" is in, NULL for current 4897 { 4898 int i; 4899 buf_T *buf; 4900 wininfo_T *wip; 4901 4902 #ifdef FEAT_FOLDING 4903 clearFolding(wp); 4904 #endif 4905 4906 // reduce the reference count to the argument list. 4907 alist_unlink(wp->w_alist); 4908 4909 // Don't execute autocommands while the window is halfway being deleted. 4910 // gui_mch_destroy_scrollbar() may trigger a FocusGained event. 4911 block_autocmds(); 4912 4913 #ifdef FEAT_LUA 4914 lua_window_free(wp); 4915 #endif 4916 4917 #ifdef FEAT_MZSCHEME 4918 mzscheme_window_free(wp); 4919 #endif 4920 4921 #ifdef FEAT_PERL 4922 perl_win_free(wp); 4923 #endif 4924 4925 #ifdef FEAT_PYTHON 4926 python_window_free(wp); 4927 #endif 4928 4929 #ifdef FEAT_PYTHON3 4930 python3_window_free(wp); 4931 #endif 4932 4933 #ifdef FEAT_TCL 4934 tcl_window_free(wp); 4935 #endif 4936 4937 #ifdef FEAT_RUBY 4938 ruby_window_free(wp); 4939 #endif 4940 4941 clear_winopt(&wp->w_onebuf_opt); 4942 clear_winopt(&wp->w_allbuf_opt); 4943 4944 #ifdef FEAT_EVAL 4945 vars_clear(&wp->w_vars->dv_hashtab); // free all w: variables 4946 hash_init(&wp->w_vars->dv_hashtab); 4947 unref_var_dict(wp->w_vars); 4948 #endif 4949 4950 { 4951 tabpage_T *ttp; 4952 4953 if (prevwin == wp) 4954 prevwin = NULL; 4955 FOR_ALL_TABPAGES(ttp) 4956 if (ttp->tp_prevwin == wp) 4957 ttp->tp_prevwin = NULL; 4958 } 4959 win_free_lsize(wp); 4960 4961 for (i = 0; i < wp->w_tagstacklen; ++i) 4962 { 4963 vim_free(wp->w_tagstack[i].tagname); 4964 vim_free(wp->w_tagstack[i].user_data); 4965 } 4966 vim_free(wp->w_localdir); 4967 4968 // Remove the window from the b_wininfo lists, it may happen that the 4969 // freed memory is re-used for another window. 4970 FOR_ALL_BUFFERS(buf) 4971 for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) 4972 if (wip->wi_win == wp) 4973 wip->wi_win = NULL; 4974 4975 #ifdef FEAT_SEARCH_EXTRA 4976 clear_matches(wp); 4977 #endif 4978 4979 #ifdef FEAT_JUMPLIST 4980 free_jumplist(wp); 4981 #endif 4982 4983 #ifdef FEAT_QUICKFIX 4984 qf_free_all(wp); 4985 #endif 4986 4987 #ifdef FEAT_GUI 4988 if (gui.in_use) 4989 { 4990 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_LEFT]); 4991 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_RIGHT]); 4992 } 4993 #endif // FEAT_GUI 4994 4995 #ifdef FEAT_MENU 4996 remove_winbar(wp); 4997 #endif 4998 #ifdef FEAT_PROP_POPUP 4999 free_callback(&wp->w_close_cb); 5000 free_callback(&wp->w_filter_cb); 5001 for (i = 0; i < 4; ++i) 5002 VIM_CLEAR(wp->w_border_highlight[i]); 5003 vim_free(wp->w_scrollbar_highlight); 5004 vim_free(wp->w_thumb_highlight); 5005 vim_free(wp->w_popup_title); 5006 list_unref(wp->w_popup_mask); 5007 vim_free(wp->w_popup_mask_cells); 5008 #endif 5009 5010 #ifdef FEAT_SYN_HL 5011 vim_free(wp->w_p_cc_cols); 5012 #endif 5013 5014 if (win_valid_any_tab(wp)) 5015 win_remove(wp, tp); 5016 if (autocmd_busy) 5017 { 5018 wp->w_next = au_pending_free_win; 5019 au_pending_free_win = wp; 5020 } 5021 else 5022 vim_free(wp); 5023 5024 unblock_autocmds(); 5025 } 5026 5027 /* 5028 * Return TRUE if "wp" is not in the list of windows: the autocmd window or a 5029 * popup window. 5030 */ 5031 static int 5032 win_unlisted(win_T *wp) 5033 { 5034 return wp == aucmd_win || WIN_IS_POPUP(wp); 5035 } 5036 5037 #if defined(FEAT_PROP_POPUP) || defined(PROTO) 5038 /* 5039 * Free a popup window. This does not take the window out of the window list 5040 * and assumes there is only one toplevel frame, no split. 5041 */ 5042 void 5043 win_free_popup(win_T *win) 5044 { 5045 if (bt_popup(win->w_buffer)) 5046 win_close_buffer(win, DOBUF_WIPE_REUSE, FALSE); 5047 else 5048 close_buffer(win, win->w_buffer, 0, FALSE, FALSE); 5049 # if defined(FEAT_TIMERS) 5050 if (win->w_popup_timer != NULL) 5051 stop_timer(win->w_popup_timer); 5052 # endif 5053 vim_free(win->w_frame); 5054 win_free(win, NULL); 5055 } 5056 #endif 5057 5058 /* 5059 * Append window "wp" in the window list after window "after". 5060 */ 5061 static void 5062 win_append(win_T *after, win_T *wp) 5063 { 5064 win_T *before; 5065 5066 if (after == NULL) // after NULL is in front of the first 5067 before = firstwin; 5068 else 5069 before = after->w_next; 5070 5071 wp->w_next = before; 5072 wp->w_prev = after; 5073 if (after == NULL) 5074 firstwin = wp; 5075 else 5076 after->w_next = wp; 5077 if (before == NULL) 5078 lastwin = wp; 5079 else 5080 before->w_prev = wp; 5081 } 5082 5083 /* 5084 * Remove a window from the window list. 5085 */ 5086 void 5087 win_remove( 5088 win_T *wp, 5089 tabpage_T *tp) // tab page "win" is in, NULL for current 5090 { 5091 if (wp->w_prev != NULL) 5092 wp->w_prev->w_next = wp->w_next; 5093 else if (tp == NULL) 5094 firstwin = curtab->tp_firstwin = wp->w_next; 5095 else 5096 tp->tp_firstwin = wp->w_next; 5097 5098 if (wp->w_next != NULL) 5099 wp->w_next->w_prev = wp->w_prev; 5100 else if (tp == NULL) 5101 lastwin = curtab->tp_lastwin = wp->w_prev; 5102 else 5103 tp->tp_lastwin = wp->w_prev; 5104 } 5105 5106 /* 5107 * Append frame "frp" in a frame list after frame "after". 5108 */ 5109 static void 5110 frame_append(frame_T *after, frame_T *frp) 5111 { 5112 frp->fr_next = after->fr_next; 5113 after->fr_next = frp; 5114 if (frp->fr_next != NULL) 5115 frp->fr_next->fr_prev = frp; 5116 frp->fr_prev = after; 5117 } 5118 5119 /* 5120 * Insert frame "frp" in a frame list before frame "before". 5121 */ 5122 static void 5123 frame_insert(frame_T *before, frame_T *frp) 5124 { 5125 frp->fr_next = before; 5126 frp->fr_prev = before->fr_prev; 5127 before->fr_prev = frp; 5128 if (frp->fr_prev != NULL) 5129 frp->fr_prev->fr_next = frp; 5130 else 5131 frp->fr_parent->fr_child = frp; 5132 } 5133 5134 /* 5135 * Remove a frame from a frame list. 5136 */ 5137 static void 5138 frame_remove(frame_T *frp) 5139 { 5140 if (frp->fr_prev != NULL) 5141 frp->fr_prev->fr_next = frp->fr_next; 5142 else 5143 { 5144 frp->fr_parent->fr_child = frp->fr_next; 5145 // special case: topframe->fr_child == frp 5146 if (topframe->fr_child == frp) 5147 topframe->fr_child = frp->fr_next; 5148 } 5149 if (frp->fr_next != NULL) 5150 frp->fr_next->fr_prev = frp->fr_prev; 5151 } 5152 5153 /* 5154 * Allocate w_lines[] for window "wp". 5155 * Return FAIL for failure, OK for success. 5156 */ 5157 int 5158 win_alloc_lines(win_T *wp) 5159 { 5160 wp->w_lines_valid = 0; 5161 wp->w_lines = ALLOC_CLEAR_MULT(wline_T, Rows ); 5162 if (wp->w_lines == NULL) 5163 return FAIL; 5164 return OK; 5165 } 5166 5167 /* 5168 * free lsize arrays for a window 5169 */ 5170 void 5171 win_free_lsize(win_T *wp) 5172 { 5173 // TODO: why would wp be NULL here? 5174 if (wp != NULL) 5175 VIM_CLEAR(wp->w_lines); 5176 } 5177 5178 /* 5179 * Called from win_new_shellsize() after Rows changed. 5180 * This only does the current tab page, others must be done when made active. 5181 */ 5182 void 5183 shell_new_rows(void) 5184 { 5185 int h = (int)ROWS_AVAIL; 5186 5187 if (firstwin == NULL) // not initialized yet 5188 return; 5189 if (h < frame_minheight(topframe, NULL)) 5190 h = frame_minheight(topframe, NULL); 5191 5192 // First try setting the heights of windows with 'winfixheight'. If 5193 // that doesn't result in the right height, forget about that option. 5194 frame_new_height(topframe, h, FALSE, TRUE); 5195 if (!frame_check_height(topframe, h)) 5196 frame_new_height(topframe, h, FALSE, FALSE); 5197 5198 (void)win_comp_pos(); // recompute w_winrow and w_wincol 5199 compute_cmdrow(); 5200 curtab->tp_ch_used = p_ch; 5201 5202 #if 0 5203 // Disabled: don't want making the screen smaller make a window larger. 5204 if (p_ea) 5205 win_equal(curwin, FALSE, 'v'); 5206 #endif 5207 } 5208 5209 /* 5210 * Called from win_new_shellsize() after Columns changed. 5211 */ 5212 void 5213 shell_new_columns(void) 5214 { 5215 if (firstwin == NULL) // not initialized yet 5216 return; 5217 5218 // First try setting the widths of windows with 'winfixwidth'. If that 5219 // doesn't result in the right width, forget about that option. 5220 frame_new_width(topframe, (int)Columns, FALSE, TRUE); 5221 if (!frame_check_width(topframe, Columns)) 5222 frame_new_width(topframe, (int)Columns, FALSE, FALSE); 5223 5224 (void)win_comp_pos(); // recompute w_winrow and w_wincol 5225 #if 0 5226 // Disabled: don't want making the screen smaller make a window larger. 5227 if (p_ea) 5228 win_equal(curwin, FALSE, 'h'); 5229 #endif 5230 } 5231 5232 #if defined(FEAT_CMDWIN) || defined(PROTO) 5233 /* 5234 * Save the size of all windows in "gap". 5235 */ 5236 void 5237 win_size_save(garray_T *gap) 5238 5239 { 5240 win_T *wp; 5241 5242 ga_init2(gap, (int)sizeof(int), 1); 5243 if (ga_grow(gap, win_count() * 2 + 1) == OK) 5244 { 5245 // first entry is value of 'lines' 5246 ((int *)gap->ga_data)[gap->ga_len++] = Rows; 5247 5248 FOR_ALL_WINDOWS(wp) 5249 { 5250 ((int *)gap->ga_data)[gap->ga_len++] = 5251 wp->w_width + wp->w_vsep_width; 5252 ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height; 5253 } 5254 } 5255 } 5256 5257 /* 5258 * Restore window sizes, but only if the number of windows is still the same 5259 * and 'lines' didn't change. 5260 * Does not free the growarray. 5261 */ 5262 void 5263 win_size_restore(garray_T *gap) 5264 { 5265 win_T *wp; 5266 int i, j; 5267 5268 if (win_count() * 2 + 1 == gap->ga_len 5269 && ((int *)gap->ga_data)[0] == Rows) 5270 { 5271 // The order matters, because frames contain other frames, but it's 5272 // difficult to get right. The easy way out is to do it twice. 5273 for (j = 0; j < 2; ++j) 5274 { 5275 i = 1; 5276 FOR_ALL_WINDOWS(wp) 5277 { 5278 frame_setwidth(wp->w_frame, ((int *)gap->ga_data)[i++]); 5279 win_setheight_win(((int *)gap->ga_data)[i++], wp); 5280 } 5281 } 5282 // recompute the window positions 5283 (void)win_comp_pos(); 5284 } 5285 } 5286 #endif // FEAT_CMDWIN 5287 5288 /* 5289 * Update the position for all windows, using the width and height of the 5290 * frames. 5291 * Returns the row just after the last window. 5292 */ 5293 int 5294 win_comp_pos(void) 5295 { 5296 int row = tabline_height(); 5297 int col = 0; 5298 5299 frame_comp_pos(topframe, &row, &col); 5300 return row; 5301 } 5302 5303 /* 5304 * Update the position of the windows in frame "topfrp", using the width and 5305 * height of the frames. 5306 * "*row" and "*col" are the top-left position of the frame. They are updated 5307 * to the bottom-right position plus one. 5308 */ 5309 static void 5310 frame_comp_pos(frame_T *topfrp, int *row, int *col) 5311 { 5312 win_T *wp; 5313 frame_T *frp; 5314 int startcol; 5315 int startrow; 5316 int h; 5317 5318 wp = topfrp->fr_win; 5319 if (wp != NULL) 5320 { 5321 if (wp->w_winrow != *row || wp->w_wincol != *col) 5322 { 5323 // position changed, redraw 5324 wp->w_winrow = *row; 5325 wp->w_wincol = *col; 5326 redraw_win_later(wp, NOT_VALID); 5327 wp->w_redr_status = TRUE; 5328 } 5329 // WinBar will not show if the window height is zero 5330 h = VISIBLE_HEIGHT(wp) + wp->w_status_height; 5331 *row += h > topfrp->fr_height ? topfrp->fr_height : h; 5332 *col += wp->w_width + wp->w_vsep_width; 5333 } 5334 else 5335 { 5336 startrow = *row; 5337 startcol = *col; 5338 FOR_ALL_FRAMES(frp, topfrp->fr_child) 5339 { 5340 if (topfrp->fr_layout == FR_ROW) 5341 *row = startrow; // all frames are at the same row 5342 else 5343 *col = startcol; // all frames are at the same col 5344 frame_comp_pos(frp, row, col); 5345 } 5346 } 5347 } 5348 5349 /* 5350 * Set current window height and take care of repositioning other windows to 5351 * fit around it. 5352 */ 5353 void 5354 win_setheight(int height) 5355 { 5356 win_setheight_win(height, curwin); 5357 } 5358 5359 /* 5360 * Set the window height of window "win" and take care of repositioning other 5361 * windows to fit around it. 5362 */ 5363 void 5364 win_setheight_win(int height, win_T *win) 5365 { 5366 int row; 5367 5368 if (win == curwin) 5369 { 5370 // Always keep current window at least one line high, even when 5371 // 'winminheight' is zero. 5372 if (height < p_wmh) 5373 height = p_wmh; 5374 if (height == 0) 5375 height = 1; 5376 height += WINBAR_HEIGHT(curwin); 5377 } 5378 5379 frame_setheight(win->w_frame, height + win->w_status_height); 5380 5381 // recompute the window positions 5382 row = win_comp_pos(); 5383 5384 /* 5385 * If there is extra space created between the last window and the command 5386 * line, clear it. 5387 */ 5388 if (full_screen && msg_scrolled == 0 && row < cmdline_row) 5389 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5390 cmdline_row = row; 5391 msg_row = row; 5392 msg_col = 0; 5393 5394 redraw_all_later(NOT_VALID); 5395 } 5396 5397 /* 5398 * Set the height of a frame to "height" and take care that all frames and 5399 * windows inside it are resized. Also resize frames on the left and right if 5400 * the are in the same FR_ROW frame. 5401 * 5402 * Strategy: 5403 * If the frame is part of a FR_COL frame, try fitting the frame in that 5404 * frame. If that doesn't work (the FR_COL frame is too small), recursively 5405 * go to containing frames to resize them and make room. 5406 * If the frame is part of a FR_ROW frame, all frames must be resized as well. 5407 * Check for the minimal height of the FR_ROW frame. 5408 * At the top level we can also use change the command line height. 5409 */ 5410 static void 5411 frame_setheight(frame_T *curfrp, int height) 5412 { 5413 int room; // total number of lines available 5414 int take; // number of lines taken from other windows 5415 int room_cmdline; // lines available from cmdline 5416 int run; 5417 frame_T *frp; 5418 int h; 5419 int room_reserved; 5420 5421 // If the height already is the desired value, nothing to do. 5422 if (curfrp->fr_height == height) 5423 return; 5424 5425 if (curfrp->fr_parent == NULL) 5426 { 5427 // topframe: can only change the command line 5428 if (height > ROWS_AVAIL) 5429 height = ROWS_AVAIL; 5430 if (height > 0) 5431 frame_new_height(curfrp, height, FALSE, FALSE); 5432 } 5433 else if (curfrp->fr_parent->fr_layout == FR_ROW) 5434 { 5435 // Row of frames: Also need to resize frames left and right of this 5436 // one. First check for the minimal height of these. 5437 h = frame_minheight(curfrp->fr_parent, NULL); 5438 if (height < h) 5439 height = h; 5440 frame_setheight(curfrp->fr_parent, height); 5441 } 5442 else 5443 { 5444 /* 5445 * Column of frames: try to change only frames in this column. 5446 */ 5447 /* 5448 * Do this twice: 5449 * 1: compute room available, if it's not enough try resizing the 5450 * containing frame. 5451 * 2: compute the room available and adjust the height to it. 5452 * Try not to reduce the height of a window with 'winfixheight' set. 5453 */ 5454 for (run = 1; run <= 2; ++run) 5455 { 5456 room = 0; 5457 room_reserved = 0; 5458 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5459 { 5460 if (frp != curfrp 5461 && frp->fr_win != NULL 5462 && frp->fr_win->w_p_wfh) 5463 room_reserved += frp->fr_height; 5464 room += frp->fr_height; 5465 if (frp != curfrp) 5466 room -= frame_minheight(frp, NULL); 5467 } 5468 if (curfrp->fr_width != Columns) 5469 room_cmdline = 0; 5470 else 5471 { 5472 room_cmdline = Rows - p_ch - (lastwin->w_winrow 5473 + VISIBLE_HEIGHT(lastwin) 5474 + lastwin->w_status_height); 5475 if (room_cmdline < 0) 5476 room_cmdline = 0; 5477 } 5478 5479 if (height <= room + room_cmdline) 5480 break; 5481 if (run == 2 || curfrp->fr_width == Columns) 5482 { 5483 if (height > room + room_cmdline) 5484 height = room + room_cmdline; 5485 break; 5486 } 5487 frame_setheight(curfrp->fr_parent, height 5488 + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1); 5489 } 5490 5491 /* 5492 * Compute the number of lines we will take from others frames (can be 5493 * negative!). 5494 */ 5495 take = height - curfrp->fr_height; 5496 5497 // If there is not enough room, also reduce the height of a window 5498 // with 'winfixheight' set. 5499 if (height > room + room_cmdline - room_reserved) 5500 room_reserved = room + room_cmdline - height; 5501 // If there is only a 'winfixheight' window and making the 5502 // window smaller, need to make the other window taller. 5503 if (take < 0 && room - curfrp->fr_height < room_reserved) 5504 room_reserved = 0; 5505 5506 if (take > 0 && room_cmdline > 0) 5507 { 5508 // use lines from cmdline first 5509 if (take < room_cmdline) 5510 room_cmdline = take; 5511 take -= room_cmdline; 5512 topframe->fr_height += room_cmdline; 5513 } 5514 5515 /* 5516 * set the current frame to the new height 5517 */ 5518 frame_new_height(curfrp, height, FALSE, FALSE); 5519 5520 /* 5521 * First take lines from the frames after the current frame. If 5522 * that is not enough, takes lines from frames above the current 5523 * frame. 5524 */ 5525 for (run = 0; run < 2; ++run) 5526 { 5527 if (run == 0) 5528 frp = curfrp->fr_next; // 1st run: start with next window 5529 else 5530 frp = curfrp->fr_prev; // 2nd run: start with prev window 5531 while (frp != NULL && take != 0) 5532 { 5533 h = frame_minheight(frp, NULL); 5534 if (room_reserved > 0 5535 && frp->fr_win != NULL 5536 && frp->fr_win->w_p_wfh) 5537 { 5538 if (room_reserved >= frp->fr_height) 5539 room_reserved -= frp->fr_height; 5540 else 5541 { 5542 if (frp->fr_height - room_reserved > take) 5543 room_reserved = frp->fr_height - take; 5544 take -= frp->fr_height - room_reserved; 5545 frame_new_height(frp, room_reserved, FALSE, FALSE); 5546 room_reserved = 0; 5547 } 5548 } 5549 else 5550 { 5551 if (frp->fr_height - take < h) 5552 { 5553 take -= frp->fr_height - h; 5554 frame_new_height(frp, h, FALSE, FALSE); 5555 } 5556 else 5557 { 5558 frame_new_height(frp, frp->fr_height - take, 5559 FALSE, FALSE); 5560 take = 0; 5561 } 5562 } 5563 if (run == 0) 5564 frp = frp->fr_next; 5565 else 5566 frp = frp->fr_prev; 5567 } 5568 } 5569 } 5570 } 5571 5572 /* 5573 * Set current window width and take care of repositioning other windows to 5574 * fit around it. 5575 */ 5576 void 5577 win_setwidth(int width) 5578 { 5579 win_setwidth_win(width, curwin); 5580 } 5581 5582 void 5583 win_setwidth_win(int width, win_T *wp) 5584 { 5585 // Always keep current window at least one column wide, even when 5586 // 'winminwidth' is zero. 5587 if (wp == curwin) 5588 { 5589 if (width < p_wmw) 5590 width = p_wmw; 5591 if (width == 0) 5592 width = 1; 5593 } 5594 5595 frame_setwidth(wp->w_frame, width + wp->w_vsep_width); 5596 5597 // recompute the window positions 5598 (void)win_comp_pos(); 5599 5600 redraw_all_later(NOT_VALID); 5601 } 5602 5603 /* 5604 * Set the width of a frame to "width" and take care that all frames and 5605 * windows inside it are resized. Also resize frames above and below if the 5606 * are in the same FR_ROW frame. 5607 * 5608 * Strategy is similar to frame_setheight(). 5609 */ 5610 static void 5611 frame_setwidth(frame_T *curfrp, int width) 5612 { 5613 int room; // total number of lines available 5614 int take; // number of lines taken from other windows 5615 int run; 5616 frame_T *frp; 5617 int w; 5618 int room_reserved; 5619 5620 // If the width already is the desired value, nothing to do. 5621 if (curfrp->fr_width == width) 5622 return; 5623 5624 if (curfrp->fr_parent == NULL) 5625 // topframe: can't change width 5626 return; 5627 5628 if (curfrp->fr_parent->fr_layout == FR_COL) 5629 { 5630 // Column of frames: Also need to resize frames above and below of 5631 // this one. First check for the minimal width of these. 5632 w = frame_minwidth(curfrp->fr_parent, NULL); 5633 if (width < w) 5634 width = w; 5635 frame_setwidth(curfrp->fr_parent, width); 5636 } 5637 else 5638 { 5639 /* 5640 * Row of frames: try to change only frames in this row. 5641 * 5642 * Do this twice: 5643 * 1: compute room available, if it's not enough try resizing the 5644 * containing frame. 5645 * 2: compute the room available and adjust the width to it. 5646 */ 5647 for (run = 1; run <= 2; ++run) 5648 { 5649 room = 0; 5650 room_reserved = 0; 5651 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5652 { 5653 if (frp != curfrp 5654 && frp->fr_win != NULL 5655 && frp->fr_win->w_p_wfw) 5656 room_reserved += frp->fr_width; 5657 room += frp->fr_width; 5658 if (frp != curfrp) 5659 room -= frame_minwidth(frp, NULL); 5660 } 5661 5662 if (width <= room) 5663 break; 5664 if (run == 2 || curfrp->fr_height >= ROWS_AVAIL) 5665 { 5666 if (width > room) 5667 width = room; 5668 break; 5669 } 5670 frame_setwidth(curfrp->fr_parent, width 5671 + frame_minwidth(curfrp->fr_parent, NOWIN) - (int)p_wmw - 1); 5672 } 5673 5674 /* 5675 * Compute the number of lines we will take from others frames (can be 5676 * negative!). 5677 */ 5678 take = width - curfrp->fr_width; 5679 5680 // If there is not enough room, also reduce the width of a window 5681 // with 'winfixwidth' set. 5682 if (width > room - room_reserved) 5683 room_reserved = room - width; 5684 // If there is only a 'winfixwidth' window and making the 5685 // window smaller, need to make the other window narrower. 5686 if (take < 0 && room - curfrp->fr_width < room_reserved) 5687 room_reserved = 0; 5688 5689 /* 5690 * set the current frame to the new width 5691 */ 5692 frame_new_width(curfrp, width, FALSE, FALSE); 5693 5694 /* 5695 * First take lines from the frames right of the current frame. If 5696 * that is not enough, takes lines from frames left of the current 5697 * frame. 5698 */ 5699 for (run = 0; run < 2; ++run) 5700 { 5701 if (run == 0) 5702 frp = curfrp->fr_next; // 1st run: start with next window 5703 else 5704 frp = curfrp->fr_prev; // 2nd run: start with prev window 5705 while (frp != NULL && take != 0) 5706 { 5707 w = frame_minwidth(frp, NULL); 5708 if (room_reserved > 0 5709 && frp->fr_win != NULL 5710 && frp->fr_win->w_p_wfw) 5711 { 5712 if (room_reserved >= frp->fr_width) 5713 room_reserved -= frp->fr_width; 5714 else 5715 { 5716 if (frp->fr_width - room_reserved > take) 5717 room_reserved = frp->fr_width - take; 5718 take -= frp->fr_width - room_reserved; 5719 frame_new_width(frp, room_reserved, FALSE, FALSE); 5720 room_reserved = 0; 5721 } 5722 } 5723 else 5724 { 5725 if (frp->fr_width - take < w) 5726 { 5727 take -= frp->fr_width - w; 5728 frame_new_width(frp, w, FALSE, FALSE); 5729 } 5730 else 5731 { 5732 frame_new_width(frp, frp->fr_width - take, 5733 FALSE, FALSE); 5734 take = 0; 5735 } 5736 } 5737 if (run == 0) 5738 frp = frp->fr_next; 5739 else 5740 frp = frp->fr_prev; 5741 } 5742 } 5743 } 5744 } 5745 5746 /* 5747 * Check 'winminheight' for a valid value and reduce it if needed. 5748 */ 5749 void 5750 win_setminheight(void) 5751 { 5752 int room; 5753 int needed; 5754 int first = TRUE; 5755 5756 // loop until there is a 'winminheight' that is possible 5757 while (p_wmh > 0) 5758 { 5759 room = Rows - p_ch; 5760 needed = frame_minheight(topframe, NULL); 5761 if (room >= needed) 5762 break; 5763 --p_wmh; 5764 if (first) 5765 { 5766 emsg(_(e_noroom)); 5767 first = FALSE; 5768 } 5769 } 5770 } 5771 5772 /* 5773 * Check 'winminwidth' for a valid value and reduce it if needed. 5774 */ 5775 void 5776 win_setminwidth(void) 5777 { 5778 int room; 5779 int needed; 5780 int first = TRUE; 5781 5782 // loop until there is a 'winminheight' that is possible 5783 while (p_wmw > 0) 5784 { 5785 room = Columns; 5786 needed = frame_minwidth(topframe, NULL); 5787 if (room >= needed) 5788 break; 5789 --p_wmw; 5790 if (first) 5791 { 5792 emsg(_(e_noroom)); 5793 first = FALSE; 5794 } 5795 } 5796 } 5797 5798 /* 5799 * Status line of dragwin is dragged "offset" lines down (negative is up). 5800 */ 5801 void 5802 win_drag_status_line(win_T *dragwin, int offset) 5803 { 5804 frame_T *curfr; 5805 frame_T *fr; 5806 int room; 5807 int row; 5808 int up; // if TRUE, drag status line up, otherwise down 5809 int n; 5810 5811 fr = dragwin->w_frame; 5812 curfr = fr; 5813 if (fr != topframe) // more than one window 5814 { 5815 fr = fr->fr_parent; 5816 // When the parent frame is not a column of frames, its parent should 5817 // be. 5818 if (fr->fr_layout != FR_COL) 5819 { 5820 curfr = fr; 5821 if (fr != topframe) // only a row of windows, may drag statusline 5822 fr = fr->fr_parent; 5823 } 5824 } 5825 5826 // If this is the last frame in a column, may want to resize the parent 5827 // frame instead (go two up to skip a row of frames). 5828 while (curfr != topframe && curfr->fr_next == NULL) 5829 { 5830 if (fr != topframe) 5831 fr = fr->fr_parent; 5832 curfr = fr; 5833 if (fr != topframe) 5834 fr = fr->fr_parent; 5835 } 5836 5837 if (offset < 0) // drag up 5838 { 5839 up = TRUE; 5840 offset = -offset; 5841 // sum up the room of the current frame and above it 5842 if (fr == curfr) 5843 { 5844 // only one window 5845 room = fr->fr_height - frame_minheight(fr, NULL); 5846 } 5847 else 5848 { 5849 room = 0; 5850 for (fr = fr->fr_child; ; fr = fr->fr_next) 5851 { 5852 room += fr->fr_height - frame_minheight(fr, NULL); 5853 if (fr == curfr) 5854 break; 5855 } 5856 } 5857 fr = curfr->fr_next; // put fr at frame that grows 5858 } 5859 else // drag down 5860 { 5861 up = FALSE; 5862 /* 5863 * Only dragging the last status line can reduce p_ch. 5864 */ 5865 room = Rows - cmdline_row; 5866 if (curfr->fr_next == NULL) 5867 room -= 1; 5868 else 5869 room -= p_ch; 5870 if (room < 0) 5871 room = 0; 5872 // sum up the room of frames below of the current one 5873 FOR_ALL_FRAMES(fr, curfr->fr_next) 5874 room += fr->fr_height - frame_minheight(fr, NULL); 5875 fr = curfr; // put fr at window that grows 5876 } 5877 5878 if (room < offset) // Not enough room 5879 offset = room; // Move as far as we can 5880 if (offset <= 0) 5881 return; 5882 5883 /* 5884 * Grow frame fr by "offset" lines. 5885 * Doesn't happen when dragging the last status line up. 5886 */ 5887 if (fr != NULL) 5888 frame_new_height(fr, fr->fr_height + offset, up, FALSE); 5889 5890 if (up) 5891 fr = curfr; // current frame gets smaller 5892 else 5893 fr = curfr->fr_next; // next frame gets smaller 5894 5895 /* 5896 * Now make the other frames smaller. 5897 */ 5898 while (fr != NULL && offset > 0) 5899 { 5900 n = frame_minheight(fr, NULL); 5901 if (fr->fr_height - offset <= n) 5902 { 5903 offset -= fr->fr_height - n; 5904 frame_new_height(fr, n, !up, FALSE); 5905 } 5906 else 5907 { 5908 frame_new_height(fr, fr->fr_height - offset, !up, FALSE); 5909 break; 5910 } 5911 if (up) 5912 fr = fr->fr_prev; 5913 else 5914 fr = fr->fr_next; 5915 } 5916 row = win_comp_pos(); 5917 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5918 cmdline_row = row; 5919 p_ch = Rows - cmdline_row; 5920 if (p_ch < 1) 5921 p_ch = 1; 5922 curtab->tp_ch_used = p_ch; 5923 redraw_all_later(SOME_VALID); 5924 showmode(); 5925 } 5926 5927 /* 5928 * Separator line of dragwin is dragged "offset" lines right (negative is left). 5929 */ 5930 void 5931 win_drag_vsep_line(win_T *dragwin, int offset) 5932 { 5933 frame_T *curfr; 5934 frame_T *fr; 5935 int room; 5936 int left; // if TRUE, drag separator line left, otherwise right 5937 int n; 5938 5939 fr = dragwin->w_frame; 5940 if (fr == topframe) // only one window (cannot happen?) 5941 return; 5942 curfr = fr; 5943 fr = fr->fr_parent; 5944 // When the parent frame is not a row of frames, its parent should be. 5945 if (fr->fr_layout != FR_ROW) 5946 { 5947 if (fr == topframe) // only a column of windows (cannot happen?) 5948 return; 5949 curfr = fr; 5950 fr = fr->fr_parent; 5951 } 5952 5953 // If this is the last frame in a row, may want to resize a parent 5954 // frame instead. 5955 while (curfr->fr_next == NULL) 5956 { 5957 if (fr == topframe) 5958 break; 5959 curfr = fr; 5960 fr = fr->fr_parent; 5961 if (fr != topframe) 5962 { 5963 curfr = fr; 5964 fr = fr->fr_parent; 5965 } 5966 } 5967 5968 if (offset < 0) // drag left 5969 { 5970 left = TRUE; 5971 offset = -offset; 5972 // sum up the room of the current frame and left of it 5973 room = 0; 5974 for (fr = fr->fr_child; ; fr = fr->fr_next) 5975 { 5976 room += fr->fr_width - frame_minwidth(fr, NULL); 5977 if (fr == curfr) 5978 break; 5979 } 5980 fr = curfr->fr_next; // put fr at frame that grows 5981 } 5982 else // drag right 5983 { 5984 left = FALSE; 5985 // sum up the room of frames right of the current one 5986 room = 0; 5987 FOR_ALL_FRAMES(fr, curfr->fr_next) 5988 room += fr->fr_width - frame_minwidth(fr, NULL); 5989 fr = curfr; // put fr at window that grows 5990 } 5991 5992 if (room < offset) // Not enough room 5993 offset = room; // Move as far as we can 5994 if (offset <= 0) // No room at all, quit. 5995 return; 5996 if (fr == NULL) 5997 return; // Safety check, should not happen. 5998 5999 // grow frame fr by offset lines 6000 frame_new_width(fr, fr->fr_width + offset, left, FALSE); 6001 6002 // shrink other frames: current and at the left or at the right 6003 if (left) 6004 fr = curfr; // current frame gets smaller 6005 else 6006 fr = curfr->fr_next; // next frame gets smaller 6007 6008 while (fr != NULL && offset > 0) 6009 { 6010 n = frame_minwidth(fr, NULL); 6011 if (fr->fr_width - offset <= n) 6012 { 6013 offset -= fr->fr_width - n; 6014 frame_new_width(fr, n, !left, FALSE); 6015 } 6016 else 6017 { 6018 frame_new_width(fr, fr->fr_width - offset, !left, FALSE); 6019 break; 6020 } 6021 if (left) 6022 fr = fr->fr_prev; 6023 else 6024 fr = fr->fr_next; 6025 } 6026 (void)win_comp_pos(); 6027 redraw_all_later(NOT_VALID); 6028 } 6029 6030 #define FRACTION_MULT 16384L 6031 6032 /* 6033 * Set wp->w_fraction for the current w_wrow and w_height. 6034 * Has no effect when the window is less than two lines. 6035 */ 6036 void 6037 set_fraction(win_T *wp) 6038 { 6039 if (wp->w_height > 1) 6040 // When cursor is in the first line the percentage is computed as if 6041 // it's halfway that line. Thus with two lines it is 25%, with three 6042 // lines 17%, etc. Similarly for the last line: 75%, 83%, etc. 6043 wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT 6044 + FRACTION_MULT / 2) / (long)wp->w_height; 6045 } 6046 6047 /* 6048 * Set the height of a window. 6049 * "height" excludes any window toolbar. 6050 * This takes care of the things inside the window, not what happens to the 6051 * window position, the frame or to other windows. 6052 */ 6053 void 6054 win_new_height(win_T *wp, int height) 6055 { 6056 int prev_height = wp->w_height; 6057 6058 // Don't want a negative height. Happens when splitting a tiny window. 6059 // Will equalize heights soon to fix it. 6060 if (height < 0) 6061 height = 0; 6062 if (wp->w_height == height) 6063 return; // nothing to do 6064 6065 if (wp->w_height > 0) 6066 { 6067 if (wp == curwin) 6068 // w_wrow needs to be valid. When setting 'laststatus' this may 6069 // call win_new_height() recursively. 6070 validate_cursor(); 6071 if (wp->w_height != prev_height) 6072 return; // Recursive call already changed the size, bail out here 6073 // to avoid the following to mess things up. 6074 if (wp->w_wrow != wp->w_prev_fraction_row) 6075 set_fraction(wp); 6076 } 6077 6078 wp->w_height = height; 6079 wp->w_skipcol = 0; 6080 6081 // There is no point in adjusting the scroll position when exiting. Some 6082 // values might be invalid. 6083 if (!exiting) 6084 scroll_to_fraction(wp, prev_height); 6085 } 6086 6087 void 6088 scroll_to_fraction(win_T *wp, int prev_height) 6089 { 6090 linenr_T lnum; 6091 int sline, line_size; 6092 int height = wp->w_height; 6093 6094 // Don't change w_topline in any of these cases: 6095 // - window height is 0 6096 // - 'scrollbind' is set and this isn't the current window 6097 // - window height is sufficient to display the whole buffer and first line 6098 // is visible. 6099 if (height > 0 6100 && (!wp->w_p_scb || wp == curwin) 6101 && (height < wp->w_buffer->b_ml.ml_line_count || wp->w_topline > 1)) 6102 { 6103 /* 6104 * Find a value for w_topline that shows the cursor at the same 6105 * relative position in the window as before (more or less). 6106 */ 6107 lnum = wp->w_cursor.lnum; 6108 if (lnum < 1) // can happen when starting up 6109 lnum = 1; 6110 wp->w_wrow = ((long)wp->w_fraction * (long)height - 1L) 6111 / FRACTION_MULT; 6112 line_size = plines_win_col(wp, lnum, (long)(wp->w_cursor.col)) - 1; 6113 sline = wp->w_wrow - line_size; 6114 6115 if (sline >= 0) 6116 { 6117 // Make sure the whole cursor line is visible, if possible. 6118 int rows = plines_win(wp, lnum, FALSE); 6119 6120 if (sline > wp->w_height - rows) 6121 { 6122 sline = wp->w_height - rows; 6123 wp->w_wrow -= rows - line_size; 6124 } 6125 } 6126 6127 if (sline < 0) 6128 { 6129 /* 6130 * Cursor line would go off top of screen if w_wrow was this high. 6131 * Make cursor line the first line in the window. If not enough 6132 * room use w_skipcol; 6133 */ 6134 wp->w_wrow = line_size; 6135 if (wp->w_wrow >= wp->w_height 6136 && (wp->w_width - win_col_off(wp)) > 0) 6137 { 6138 wp->w_skipcol += wp->w_width - win_col_off(wp); 6139 --wp->w_wrow; 6140 while (wp->w_wrow >= wp->w_height) 6141 { 6142 wp->w_skipcol += wp->w_width - win_col_off(wp) 6143 + win_col_off2(wp); 6144 --wp->w_wrow; 6145 } 6146 } 6147 } 6148 else if (sline > 0) 6149 { 6150 while (sline > 0 && lnum > 1) 6151 { 6152 #ifdef FEAT_FOLDING 6153 hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); 6154 if (lnum == 1) 6155 { 6156 // first line in buffer is folded 6157 line_size = 1; 6158 --sline; 6159 break; 6160 } 6161 #endif 6162 --lnum; 6163 #ifdef FEAT_DIFF 6164 if (lnum == wp->w_topline) 6165 line_size = plines_win_nofill(wp, lnum, TRUE) 6166 + wp->w_topfill; 6167 else 6168 #endif 6169 line_size = plines_win(wp, lnum, TRUE); 6170 sline -= line_size; 6171 } 6172 6173 if (sline < 0) 6174 { 6175 /* 6176 * Line we want at top would go off top of screen. Use next 6177 * line instead. 6178 */ 6179 #ifdef FEAT_FOLDING 6180 hasFoldingWin(wp, lnum, NULL, &lnum, TRUE, NULL); 6181 #endif 6182 lnum++; 6183 wp->w_wrow -= line_size + sline; 6184 } 6185 else if (sline > 0) 6186 { 6187 // First line of file reached, use that as topline. 6188 lnum = 1; 6189 wp->w_wrow -= sline; 6190 } 6191 } 6192 set_topline(wp, lnum); 6193 } 6194 6195 if (wp == curwin) 6196 { 6197 if (get_scrolloff_value()) 6198 update_topline(); 6199 curs_columns(FALSE); // validate w_wrow 6200 } 6201 if (prev_height > 0) 6202 wp->w_prev_fraction_row = wp->w_wrow; 6203 6204 win_comp_scroll(wp); 6205 redraw_win_later(wp, SOME_VALID); 6206 wp->w_redr_status = TRUE; 6207 invalidate_botline_win(wp); 6208 } 6209 6210 /* 6211 * Set the width of a window. 6212 */ 6213 void 6214 win_new_width(win_T *wp, int width) 6215 { 6216 wp->w_width = width; 6217 wp->w_lines_valid = 0; 6218 changed_line_abv_curs_win(wp); 6219 invalidate_botline_win(wp); 6220 if (wp == curwin) 6221 { 6222 update_topline(); 6223 curs_columns(TRUE); // validate w_wrow 6224 } 6225 redraw_win_later(wp, NOT_VALID); 6226 wp->w_redr_status = TRUE; 6227 } 6228 6229 void 6230 win_comp_scroll(win_T *wp) 6231 { 6232 wp->w_p_scr = ((unsigned)wp->w_height >> 1); 6233 if (wp->w_p_scr == 0) 6234 wp->w_p_scr = 1; 6235 } 6236 6237 /* 6238 * command_height: called whenever p_ch has been changed 6239 */ 6240 void 6241 command_height(void) 6242 { 6243 int h; 6244 frame_T *frp; 6245 int old_p_ch = curtab->tp_ch_used; 6246 6247 // Use the value of p_ch that we remembered. This is needed for when the 6248 // GUI starts up, we can't be sure in what order things happen. And when 6249 // p_ch was changed in another tab page. 6250 curtab->tp_ch_used = p_ch; 6251 6252 // Find bottom frame with width of screen. 6253 frp = lastwin->w_frame; 6254 while (frp->fr_width != Columns && frp->fr_parent != NULL) 6255 frp = frp->fr_parent; 6256 6257 // Avoid changing the height of a window with 'winfixheight' set. 6258 while (frp->fr_prev != NULL && frp->fr_layout == FR_LEAF 6259 && frp->fr_win->w_p_wfh) 6260 frp = frp->fr_prev; 6261 6262 if (starting != NO_SCREEN) 6263 { 6264 cmdline_row = Rows - p_ch; 6265 6266 if (p_ch > old_p_ch) // p_ch got bigger 6267 { 6268 while (p_ch > old_p_ch) 6269 { 6270 if (frp == NULL) 6271 { 6272 emsg(_(e_noroom)); 6273 p_ch = old_p_ch; 6274 curtab->tp_ch_used = p_ch; 6275 cmdline_row = Rows - p_ch; 6276 break; 6277 } 6278 h = frp->fr_height - frame_minheight(frp, NULL); 6279 if (h > p_ch - old_p_ch) 6280 h = p_ch - old_p_ch; 6281 old_p_ch += h; 6282 frame_add_height(frp, -h); 6283 frp = frp->fr_prev; 6284 } 6285 6286 // Recompute window positions. 6287 (void)win_comp_pos(); 6288 6289 // clear the lines added to cmdline 6290 if (full_screen) 6291 screen_fill((int)(cmdline_row), (int)Rows, 0, 6292 (int)Columns, ' ', ' ', 0); 6293 msg_row = cmdline_row; 6294 redraw_cmdline = TRUE; 6295 return; 6296 } 6297 6298 if (msg_row < cmdline_row) 6299 msg_row = cmdline_row; 6300 redraw_cmdline = TRUE; 6301 } 6302 frame_add_height(frp, (int)(old_p_ch - p_ch)); 6303 6304 // Recompute window positions. 6305 if (frp != lastwin->w_frame) 6306 (void)win_comp_pos(); 6307 } 6308 6309 /* 6310 * Resize frame "frp" to be "n" lines higher (negative for less high). 6311 * Also resize the frames it is contained in. 6312 */ 6313 static void 6314 frame_add_height(frame_T *frp, int n) 6315 { 6316 frame_new_height(frp, frp->fr_height + n, FALSE, FALSE); 6317 for (;;) 6318 { 6319 frp = frp->fr_parent; 6320 if (frp == NULL) 6321 break; 6322 frp->fr_height += n; 6323 } 6324 } 6325 6326 /* 6327 * Add or remove a status line for the bottom window(s), according to the 6328 * value of 'laststatus'. 6329 */ 6330 void 6331 last_status( 6332 int morewin) // pretend there are two or more windows 6333 { 6334 // Don't make a difference between horizontal or vertical split. 6335 last_status_rec(topframe, (p_ls == 2 6336 || (p_ls == 1 && (morewin || !ONE_WINDOW)))); 6337 } 6338 6339 static void 6340 last_status_rec(frame_T *fr, int statusline) 6341 { 6342 frame_T *fp; 6343 win_T *wp; 6344 6345 if (fr->fr_layout == FR_LEAF) 6346 { 6347 wp = fr->fr_win; 6348 if (wp->w_status_height != 0 && !statusline) 6349 { 6350 // remove status line 6351 win_new_height(wp, wp->w_height + 1); 6352 wp->w_status_height = 0; 6353 comp_col(); 6354 } 6355 else if (wp->w_status_height == 0 && statusline) 6356 { 6357 // Find a frame to take a line from. 6358 fp = fr; 6359 while (fp->fr_height <= frame_minheight(fp, NULL)) 6360 { 6361 if (fp == topframe) 6362 { 6363 emsg(_(e_noroom)); 6364 return; 6365 } 6366 // In a column of frames: go to frame above. If already at 6367 // the top or in a row of frames: go to parent. 6368 if (fp->fr_parent->fr_layout == FR_COL && fp->fr_prev != NULL) 6369 fp = fp->fr_prev; 6370 else 6371 fp = fp->fr_parent; 6372 } 6373 wp->w_status_height = 1; 6374 if (fp != fr) 6375 { 6376 frame_new_height(fp, fp->fr_height - 1, FALSE, FALSE); 6377 frame_fix_height(wp); 6378 (void)win_comp_pos(); 6379 } 6380 else 6381 win_new_height(wp, wp->w_height - 1); 6382 comp_col(); 6383 redraw_all_later(SOME_VALID); 6384 } 6385 } 6386 else if (fr->fr_layout == FR_ROW) 6387 { 6388 // vertically split windows, set status line for each one 6389 FOR_ALL_FRAMES(fp, fr->fr_child) 6390 last_status_rec(fp, statusline); 6391 } 6392 else 6393 { 6394 // horizontally split window, set status line for last one 6395 for (fp = fr->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 6396 ; 6397 last_status_rec(fp, statusline); 6398 } 6399 } 6400 6401 /* 6402 * Return the number of lines used by the tab page line. 6403 */ 6404 int 6405 tabline_height(void) 6406 { 6407 #ifdef FEAT_GUI_TABLINE 6408 // When the GUI has the tabline then this always returns zero. 6409 if (gui_use_tabline()) 6410 return 0; 6411 #endif 6412 switch (p_stal) 6413 { 6414 case 0: return 0; 6415 case 1: return (first_tabpage->tp_next == NULL) ? 0 : 1; 6416 } 6417 return 1; 6418 } 6419 6420 /* 6421 * Return the minimal number of rows that is needed on the screen to display 6422 * the current number of windows. 6423 */ 6424 int 6425 min_rows(void) 6426 { 6427 int total; 6428 tabpage_T *tp; 6429 int n; 6430 6431 if (firstwin == NULL) // not initialized yet 6432 return MIN_LINES; 6433 6434 total = 0; 6435 FOR_ALL_TABPAGES(tp) 6436 { 6437 n = frame_minheight(tp->tp_topframe, NULL); 6438 if (total < n) 6439 total = n; 6440 } 6441 total += tabline_height(); 6442 total += 1; // count the room for the command line 6443 return total; 6444 } 6445 6446 /* 6447 * Return TRUE if there is only one window and only one tab page, not 6448 * counting a help or preview window, unless it is the current window. 6449 * Does not count unlisted windows. 6450 */ 6451 int 6452 only_one_window(void) 6453 { 6454 int count = 0; 6455 win_T *wp; 6456 6457 #if defined(FEAT_PROP_POPUP) 6458 // If the current window is a popup then there always is another window. 6459 if (popup_is_popup(curwin)) 6460 return FALSE; 6461 #endif 6462 6463 // If there is another tab page there always is another window. 6464 if (first_tabpage->tp_next != NULL) 6465 return FALSE; 6466 6467 FOR_ALL_WINDOWS(wp) 6468 if (wp->w_buffer != NULL 6469 && (!((bt_help(wp->w_buffer) && !bt_help(curbuf)) 6470 # ifdef FEAT_QUICKFIX 6471 || wp->w_p_pvw 6472 # endif 6473 ) || wp == curwin) && wp != aucmd_win) 6474 ++count; 6475 return (count <= 1); 6476 } 6477 6478 /* 6479 * Correct the cursor line number in other windows. Used after changing the 6480 * current buffer, and before applying autocommands. 6481 * When "do_curwin" is TRUE, also check current window. 6482 */ 6483 void 6484 check_lnums(int do_curwin) 6485 { 6486 win_T *wp; 6487 tabpage_T *tp; 6488 6489 FOR_ALL_TAB_WINDOWS(tp, wp) 6490 if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) 6491 { 6492 // save the original cursor position and topline 6493 wp->w_save_cursor.w_cursor_save = wp->w_cursor; 6494 wp->w_save_cursor.w_topline_save = wp->w_topline; 6495 6496 if (wp->w_cursor.lnum > curbuf->b_ml.ml_line_count) 6497 wp->w_cursor.lnum = curbuf->b_ml.ml_line_count; 6498 if (wp->w_topline > curbuf->b_ml.ml_line_count) 6499 wp->w_topline = curbuf->b_ml.ml_line_count; 6500 6501 // save the corrected cursor position and topline 6502 wp->w_save_cursor.w_cursor_corr = wp->w_cursor; 6503 wp->w_save_cursor.w_topline_corr = wp->w_topline; 6504 } 6505 } 6506 6507 /* 6508 * Reset cursor and topline to its stored values from check_lnums(). 6509 * check_lnums() must have been called first! 6510 */ 6511 void 6512 reset_lnums() 6513 { 6514 win_T *wp; 6515 tabpage_T *tp; 6516 6517 FOR_ALL_TAB_WINDOWS(tp, wp) 6518 if (wp->w_buffer == curbuf) 6519 { 6520 // Restore the value if the autocommand didn't change it. 6521 if (EQUAL_POS(wp->w_save_cursor.w_cursor_corr, wp->w_cursor)) 6522 wp->w_cursor = wp->w_save_cursor.w_cursor_save; 6523 if (wp->w_save_cursor.w_topline_corr == wp->w_topline) 6524 wp->w_topline = wp->w_save_cursor.w_topline_save; 6525 } 6526 } 6527 6528 /* 6529 * A snapshot of the window sizes, to restore them after closing the help 6530 * window. 6531 * Only these fields are used: 6532 * fr_layout 6533 * fr_width 6534 * fr_height 6535 * fr_next 6536 * fr_child 6537 * fr_win (only valid for the old curwin, NULL otherwise) 6538 */ 6539 6540 /* 6541 * Create a snapshot of the current frame sizes. 6542 */ 6543 void 6544 make_snapshot(int idx) 6545 { 6546 clear_snapshot(curtab, idx); 6547 make_snapshot_rec(topframe, &curtab->tp_snapshot[idx]); 6548 } 6549 6550 static void 6551 make_snapshot_rec(frame_T *fr, frame_T **frp) 6552 { 6553 *frp = ALLOC_CLEAR_ONE(frame_T); 6554 if (*frp == NULL) 6555 return; 6556 (*frp)->fr_layout = fr->fr_layout; 6557 (*frp)->fr_width = fr->fr_width; 6558 (*frp)->fr_height = fr->fr_height; 6559 if (fr->fr_next != NULL) 6560 make_snapshot_rec(fr->fr_next, &((*frp)->fr_next)); 6561 if (fr->fr_child != NULL) 6562 make_snapshot_rec(fr->fr_child, &((*frp)->fr_child)); 6563 if (fr->fr_layout == FR_LEAF && fr->fr_win == curwin) 6564 (*frp)->fr_win = curwin; 6565 } 6566 6567 /* 6568 * Remove any existing snapshot. 6569 */ 6570 static void 6571 clear_snapshot(tabpage_T *tp, int idx) 6572 { 6573 clear_snapshot_rec(tp->tp_snapshot[idx]); 6574 tp->tp_snapshot[idx] = NULL; 6575 } 6576 6577 static void 6578 clear_snapshot_rec(frame_T *fr) 6579 { 6580 if (fr != NULL) 6581 { 6582 clear_snapshot_rec(fr->fr_next); 6583 clear_snapshot_rec(fr->fr_child); 6584 vim_free(fr); 6585 } 6586 } 6587 6588 /* 6589 * Restore a previously created snapshot, if there is any. 6590 * This is only done if the screen size didn't change and the window layout is 6591 * still the same. 6592 */ 6593 void 6594 restore_snapshot( 6595 int idx, 6596 int close_curwin) // closing current window 6597 { 6598 win_T *wp; 6599 6600 if (curtab->tp_snapshot[idx] != NULL 6601 && curtab->tp_snapshot[idx]->fr_width == topframe->fr_width 6602 && curtab->tp_snapshot[idx]->fr_height == topframe->fr_height 6603 && check_snapshot_rec(curtab->tp_snapshot[idx], topframe) == OK) 6604 { 6605 wp = restore_snapshot_rec(curtab->tp_snapshot[idx], topframe); 6606 win_comp_pos(); 6607 if (wp != NULL && close_curwin) 6608 win_goto(wp); 6609 redraw_all_later(NOT_VALID); 6610 } 6611 clear_snapshot(curtab, idx); 6612 } 6613 6614 /* 6615 * Check if frames "sn" and "fr" have the same layout, same following frames 6616 * and same children. And the window pointer is valid. 6617 */ 6618 static int 6619 check_snapshot_rec(frame_T *sn, frame_T *fr) 6620 { 6621 if (sn->fr_layout != fr->fr_layout 6622 || (sn->fr_next == NULL) != (fr->fr_next == NULL) 6623 || (sn->fr_child == NULL) != (fr->fr_child == NULL) 6624 || (sn->fr_next != NULL 6625 && check_snapshot_rec(sn->fr_next, fr->fr_next) == FAIL) 6626 || (sn->fr_child != NULL 6627 && check_snapshot_rec(sn->fr_child, fr->fr_child) == FAIL) 6628 || (sn->fr_win != NULL && !win_valid(sn->fr_win))) 6629 return FAIL; 6630 return OK; 6631 } 6632 6633 /* 6634 * Copy the size of snapshot frame "sn" to frame "fr". Do the same for all 6635 * following frames and children. 6636 * Returns a pointer to the old current window, or NULL. 6637 */ 6638 static win_T * 6639 restore_snapshot_rec(frame_T *sn, frame_T *fr) 6640 { 6641 win_T *wp = NULL; 6642 win_T *wp2; 6643 6644 fr->fr_height = sn->fr_height; 6645 fr->fr_width = sn->fr_width; 6646 if (fr->fr_layout == FR_LEAF) 6647 { 6648 frame_new_height(fr, fr->fr_height, FALSE, FALSE); 6649 frame_new_width(fr, fr->fr_width, FALSE, FALSE); 6650 wp = sn->fr_win; 6651 } 6652 if (sn->fr_next != NULL) 6653 { 6654 wp2 = restore_snapshot_rec(sn->fr_next, fr->fr_next); 6655 if (wp2 != NULL) 6656 wp = wp2; 6657 } 6658 if (sn->fr_child != NULL) 6659 { 6660 wp2 = restore_snapshot_rec(sn->fr_child, fr->fr_child); 6661 if (wp2 != NULL) 6662 wp = wp2; 6663 } 6664 return wp; 6665 } 6666 6667 #if defined(FEAT_GUI) || defined(PROTO) 6668 /* 6669 * Return TRUE if there is any vertically split window. 6670 */ 6671 int 6672 win_hasvertsplit(void) 6673 { 6674 frame_T *fr; 6675 6676 if (topframe->fr_layout == FR_ROW) 6677 return TRUE; 6678 6679 if (topframe->fr_layout == FR_COL) 6680 FOR_ALL_FRAMES(fr, topframe->fr_child) 6681 if (fr->fr_layout == FR_ROW) 6682 return TRUE; 6683 6684 return FALSE; 6685 } 6686 #endif 6687 6688 #if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO) 6689 int 6690 get_win_number(win_T *wp, win_T *first_win) 6691 { 6692 int i = 1; 6693 win_T *w; 6694 6695 for (w = first_win; w != NULL && w != wp; w = W_NEXT(w)) 6696 ++i; 6697 6698 if (w == NULL) 6699 return 0; 6700 else 6701 return i; 6702 } 6703 6704 int 6705 get_tab_number(tabpage_T *tp UNUSED) 6706 { 6707 int i = 1; 6708 tabpage_T *t; 6709 6710 for (t = first_tabpage; t != NULL && t != tp; t = t->tp_next) 6711 ++i; 6712 6713 if (t == NULL) 6714 return 0; 6715 else 6716 return i; 6717 } 6718 #endif 6719 6720 /* 6721 * Return TRUE if "topfrp" and its children are at the right height. 6722 */ 6723 static int 6724 frame_check_height(frame_T *topfrp, int height) 6725 { 6726 frame_T *frp; 6727 6728 if (topfrp->fr_height != height) 6729 return FALSE; 6730 6731 if (topfrp->fr_layout == FR_ROW) 6732 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6733 if (frp->fr_height != height) 6734 return FALSE; 6735 6736 return TRUE; 6737 } 6738 6739 /* 6740 * Return TRUE if "topfrp" and its children are at the right width. 6741 */ 6742 static int 6743 frame_check_width(frame_T *topfrp, int width) 6744 { 6745 frame_T *frp; 6746 6747 if (topfrp->fr_width != width) 6748 return FALSE; 6749 6750 if (topfrp->fr_layout == FR_COL) 6751 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6752 if (frp->fr_width != width) 6753 return FALSE; 6754 6755 return TRUE; 6756 } 6757 6758 #if defined(FEAT_SYN_HL) || defined(PROTO) 6759 /* 6760 * Simple int comparison function for use with qsort() 6761 */ 6762 static int 6763 int_cmp(const void *a, const void *b) 6764 { 6765 return *(const int *)a - *(const int *)b; 6766 } 6767 6768 /* 6769 * Handle setting 'colorcolumn' or 'textwidth' in window "wp". 6770 * Returns error message, NULL if it's OK. 6771 */ 6772 char * 6773 check_colorcolumn(win_T *wp) 6774 { 6775 char_u *s; 6776 int col; 6777 int count = 0; 6778 int color_cols[256]; 6779 int i; 6780 int j = 0; 6781 6782 if (wp->w_buffer == NULL) 6783 return NULL; // buffer was closed 6784 6785 for (s = wp->w_p_cc; *s != NUL && count < 255;) 6786 { 6787 if (*s == '-' || *s == '+') 6788 { 6789 // -N and +N: add to 'textwidth' 6790 col = (*s == '-') ? -1 : 1; 6791 ++s; 6792 if (!VIM_ISDIGIT(*s)) 6793 return e_invarg; 6794 col = col * getdigits(&s); 6795 if (wp->w_buffer->b_p_tw == 0) 6796 goto skip; // 'textwidth' not set, skip this item 6797 col += wp->w_buffer->b_p_tw; 6798 if (col < 0) 6799 goto skip; 6800 } 6801 else if (VIM_ISDIGIT(*s)) 6802 col = getdigits(&s); 6803 else 6804 return e_invarg; 6805 color_cols[count++] = col - 1; // 1-based to 0-based 6806 skip: 6807 if (*s == NUL) 6808 break; 6809 if (*s != ',') 6810 return e_invarg; 6811 if (*++s == NUL) 6812 return e_invarg; // illegal trailing comma as in "set cc=80," 6813 } 6814 6815 vim_free(wp->w_p_cc_cols); 6816 if (count == 0) 6817 wp->w_p_cc_cols = NULL; 6818 else 6819 { 6820 wp->w_p_cc_cols = ALLOC_MULT(int, count + 1); 6821 if (wp->w_p_cc_cols != NULL) 6822 { 6823 // sort the columns for faster usage on screen redraw inside 6824 // win_line() 6825 qsort(color_cols, count, sizeof(int), int_cmp); 6826 6827 for (i = 0; i < count; ++i) 6828 // skip duplicates 6829 if (j == 0 || wp->w_p_cc_cols[j - 1] != color_cols[i]) 6830 wp->w_p_cc_cols[j++] = color_cols[i]; 6831 wp->w_p_cc_cols[j] = -1; // end marker 6832 } 6833 } 6834 6835 return NULL; // no error 6836 } 6837 #endif 6838