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 int path_is_url(char_u *p); 13 #if defined(FEAT_WINDOWS) || defined(PROTO) 14 static void cmd_with_count(char *cmd, char_u *bufp, size_t bufsize, long Prenum); 15 static void win_init(win_T *newp, win_T *oldp, int flags); 16 static void win_init_some(win_T *newp, win_T *oldp); 17 static void frame_comp_pos(frame_T *topfrp, int *row, int *col); 18 static void frame_setheight(frame_T *curfrp, int height); 19 static void frame_setwidth(frame_T *curfrp, int width); 20 static void win_exchange(long); 21 static void win_rotate(int, int); 22 static void win_totop(int size, int flags); 23 static void win_equal_rec(win_T *next_curwin, int current, frame_T *topfr, int dir, int col, int row, int width, int height); 24 static int last_window(void); 25 static int close_last_window_tabpage(win_T *win, int free_buf, tabpage_T *prev_curtab); 26 static win_T *win_free_mem(win_T *win, int *dirp, tabpage_T *tp); 27 static frame_T *win_altframe(win_T *win, tabpage_T *tp); 28 static tabpage_T *alt_tabpage(void); 29 static win_T *frame2win(frame_T *frp); 30 static int frame_has_win(frame_T *frp, win_T *wp); 31 static void frame_new_height(frame_T *topfrp, int height, int topfirst, int wfh); 32 static int frame_fixed_height(frame_T *frp); 33 static int frame_fixed_width(frame_T *frp); 34 static void frame_add_statusline(frame_T *frp); 35 static void frame_new_width(frame_T *topfrp, int width, int leftfirst, int wfw); 36 static void frame_add_vsep(frame_T *frp); 37 static int frame_minwidth(frame_T *topfrp, win_T *next_curwin); 38 static void frame_fix_width(win_T *wp); 39 #endif 40 static int win_alloc_firstwin(win_T *oldwin); 41 static void new_frame(win_T *wp); 42 #if defined(FEAT_WINDOWS) || defined(PROTO) 43 static tabpage_T *alloc_tabpage(void); 44 static int leave_tabpage(buf_T *new_curbuf, int trigger_leave_autocmds); 45 static void enter_tabpage(tabpage_T *tp, buf_T *old_curbuf, int trigger_enter_autocmds, int trigger_leave_autocmds); 46 static void frame_fix_height(win_T *wp); 47 static int frame_minheight(frame_T *topfrp, win_T *next_curwin); 48 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); 49 static void win_free(win_T *wp, tabpage_T *tp); 50 static void frame_append(frame_T *after, frame_T *frp); 51 static void frame_insert(frame_T *before, frame_T *frp); 52 static void frame_remove(frame_T *frp); 53 static void win_goto_ver(int up, long count); 54 static void win_goto_hor(int left, long count); 55 static void frame_add_height(frame_T *frp, int n); 56 static void last_status_rec(frame_T *fr, int statusline); 57 58 static void make_snapshot_rec(frame_T *fr, frame_T **frp); 59 static void clear_snapshot(tabpage_T *tp, int idx); 60 static void clear_snapshot_rec(frame_T *fr); 61 static int check_snapshot_rec(frame_T *sn, frame_T *fr); 62 static win_T *restore_snapshot_rec(frame_T *sn, frame_T *fr); 63 64 static int frame_check_height(frame_T *topfrp, int height); 65 static int frame_check_width(frame_T *topfrp, int width); 66 67 #endif /* FEAT_WINDOWS */ 68 69 static win_T *win_alloc(win_T *after, int hidden); 70 71 #define URL_SLASH 1 /* path_is_url() has found "://" */ 72 #define URL_BACKSLASH 2 /* path_is_url() has found ":\\" */ 73 74 #define NOWIN (win_T *)-1 /* non-existing window */ 75 76 #ifdef FEAT_WINDOWS 77 # define ROWS_AVAIL (Rows - p_ch - tabline_height()) 78 #else 79 # define ROWS_AVAIL (Rows - p_ch) 80 #endif 81 82 #if defined(FEAT_WINDOWS) || defined(PROTO) 83 84 static char *m_onlyone = N_("Already only one window"); 85 86 /* 87 * all CTRL-W window commands are handled here, called from normal_cmd(). 88 */ 89 void 90 do_window( 91 int nchar, 92 long Prenum, 93 int xchar) /* extra char from ":wincmd gx" or NUL */ 94 { 95 long Prenum1; 96 win_T *wp; 97 #if defined(FEAT_SEARCHPATH) || defined(FEAT_FIND_ID) 98 char_u *ptr; 99 linenr_T lnum = -1; 100 #endif 101 #ifdef FEAT_FIND_ID 102 int type = FIND_DEFINE; 103 int len; 104 #endif 105 char_u cbuf[40]; 106 107 if (Prenum == 0) 108 Prenum1 = 1; 109 else 110 Prenum1 = Prenum; 111 112 #ifdef FEAT_CMDWIN 113 # define CHECK_CMDWIN if (cmdwin_type != 0) { EMSG(_(e_cmdwin)); break; } 114 #else 115 # define CHECK_CMDWIN 116 #endif 117 118 switch (nchar) 119 { 120 /* split current window in two parts, horizontally */ 121 case 'S': 122 case Ctrl_S: 123 case 's': 124 CHECK_CMDWIN 125 reset_VIsual_and_resel(); /* stop Visual mode */ 126 #ifdef FEAT_QUICKFIX 127 /* When splitting the quickfix window open a new buffer in it, 128 * don't replicate the quickfix buffer. */ 129 if (bt_quickfix(curbuf)) 130 goto newwindow; 131 #endif 132 #ifdef FEAT_GUI 133 need_mouse_correct = TRUE; 134 #endif 135 (void)win_split((int)Prenum, 0); 136 break; 137 138 /* split current window in two parts, vertically */ 139 case Ctrl_V: 140 case 'v': 141 CHECK_CMDWIN 142 reset_VIsual_and_resel(); /* stop Visual mode */ 143 #ifdef FEAT_QUICKFIX 144 /* When splitting the quickfix window open a new buffer in it, 145 * don't replicate the quickfix buffer. */ 146 if (bt_quickfix(curbuf)) 147 goto newwindow; 148 #endif 149 #ifdef FEAT_GUI 150 need_mouse_correct = TRUE; 151 #endif 152 (void)win_split((int)Prenum, WSP_VERT); 153 break; 154 155 /* split current window and edit alternate file */ 156 case Ctrl_HAT: 157 case '^': 158 CHECK_CMDWIN 159 reset_VIsual_and_resel(); /* stop Visual mode */ 160 cmd_with_count("split #", cbuf, sizeof(cbuf), Prenum); 161 do_cmdline_cmd(cbuf); 162 break; 163 164 /* open new window */ 165 case Ctrl_N: 166 case 'n': 167 CHECK_CMDWIN 168 reset_VIsual_and_resel(); /* stop Visual mode */ 169 #ifdef FEAT_QUICKFIX 170 newwindow: 171 #endif 172 if (Prenum) 173 /* window height */ 174 vim_snprintf((char *)cbuf, sizeof(cbuf) - 5, "%ld", Prenum); 175 else 176 cbuf[0] = NUL; 177 #if defined(FEAT_QUICKFIX) 178 if (nchar == 'v' || nchar == Ctrl_V) 179 STRCAT(cbuf, "v"); 180 #endif 181 STRCAT(cbuf, "new"); 182 do_cmdline_cmd(cbuf); 183 break; 184 185 /* quit current window */ 186 case Ctrl_Q: 187 case 'q': 188 reset_VIsual_and_resel(); /* stop Visual mode */ 189 cmd_with_count("quit", cbuf, sizeof(cbuf), Prenum); 190 do_cmdline_cmd(cbuf); 191 break; 192 193 /* close current window */ 194 case Ctrl_C: 195 case 'c': 196 reset_VIsual_and_resel(); /* stop Visual mode */ 197 cmd_with_count("close", cbuf, sizeof(cbuf), Prenum); 198 do_cmdline_cmd(cbuf); 199 break; 200 201 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX) 202 /* close preview window */ 203 case Ctrl_Z: 204 case 'z': 205 CHECK_CMDWIN 206 reset_VIsual_and_resel(); /* stop Visual mode */ 207 do_cmdline_cmd((char_u *)"pclose"); 208 break; 209 210 /* cursor to preview window */ 211 case 'P': 212 FOR_ALL_WINDOWS(wp) 213 if (wp->w_p_pvw) 214 break; 215 if (wp == NULL) 216 EMSG(_("E441: There is no preview window")); 217 else 218 win_goto(wp); 219 break; 220 #endif 221 222 /* close all but current window */ 223 case Ctrl_O: 224 case 'o': 225 CHECK_CMDWIN 226 reset_VIsual_and_resel(); /* stop Visual mode */ 227 cmd_with_count("only", cbuf, sizeof(cbuf), Prenum); 228 do_cmdline_cmd(cbuf); 229 break; 230 231 /* cursor to next window with wrap around */ 232 case Ctrl_W: 233 case 'w': 234 /* cursor to previous window with wrap around */ 235 case 'W': 236 CHECK_CMDWIN 237 if (ONE_WINDOW && Prenum != 1) /* just one window */ 238 beep_flush(); 239 else 240 { 241 if (Prenum) /* go to specified window */ 242 { 243 for (wp = firstwin; --Prenum > 0; ) 244 { 245 if (wp->w_next == NULL) 246 break; 247 else 248 wp = wp->w_next; 249 } 250 } 251 else 252 { 253 if (nchar == 'W') /* go to previous window */ 254 { 255 wp = curwin->w_prev; 256 if (wp == NULL) 257 wp = lastwin; /* wrap around */ 258 } 259 else /* go to next window */ 260 { 261 wp = curwin->w_next; 262 if (wp == NULL) 263 wp = firstwin; /* wrap around */ 264 } 265 } 266 win_goto(wp); 267 } 268 break; 269 270 /* cursor to window below */ 271 case 'j': 272 case K_DOWN: 273 case Ctrl_J: 274 CHECK_CMDWIN 275 win_goto_ver(FALSE, Prenum1); 276 break; 277 278 /* cursor to window above */ 279 case 'k': 280 case K_UP: 281 case Ctrl_K: 282 CHECK_CMDWIN 283 win_goto_ver(TRUE, Prenum1); 284 break; 285 286 /* cursor to left window */ 287 case 'h': 288 case K_LEFT: 289 case Ctrl_H: 290 case K_BS: 291 CHECK_CMDWIN 292 win_goto_hor(TRUE, Prenum1); 293 break; 294 295 /* cursor to right window */ 296 case 'l': 297 case K_RIGHT: 298 case Ctrl_L: 299 CHECK_CMDWIN 300 win_goto_hor(FALSE, Prenum1); 301 break; 302 303 /* move window to new tab page */ 304 case 'T': 305 if (one_window()) 306 MSG(_(m_onlyone)); 307 else 308 { 309 tabpage_T *oldtab = curtab; 310 tabpage_T *newtab; 311 312 /* First create a new tab with the window, then go back to 313 * the old tab and close the window there. */ 314 wp = curwin; 315 if (win_new_tabpage((int)Prenum) == OK 316 && valid_tabpage(oldtab)) 317 { 318 newtab = curtab; 319 goto_tabpage_tp(oldtab, TRUE, TRUE); 320 if (curwin == wp) 321 win_close(curwin, FALSE); 322 if (valid_tabpage(newtab)) 323 goto_tabpage_tp(newtab, TRUE, TRUE); 324 } 325 } 326 break; 327 328 /* cursor to top-left window */ 329 case 't': 330 case Ctrl_T: 331 win_goto(firstwin); 332 break; 333 334 /* cursor to bottom-right window */ 335 case 'b': 336 case Ctrl_B: 337 win_goto(lastwin); 338 break; 339 340 /* cursor to last accessed (previous) window */ 341 case 'p': 342 case Ctrl_P: 343 if (!win_valid(prevwin)) 344 beep_flush(); 345 else 346 win_goto(prevwin); 347 break; 348 349 /* exchange current and next window */ 350 case 'x': 351 case Ctrl_X: 352 CHECK_CMDWIN 353 win_exchange(Prenum); 354 break; 355 356 /* rotate windows downwards */ 357 case Ctrl_R: 358 case 'r': 359 CHECK_CMDWIN 360 reset_VIsual_and_resel(); /* stop Visual mode */ 361 win_rotate(FALSE, (int)Prenum1); /* downwards */ 362 break; 363 364 /* rotate windows upwards */ 365 case 'R': 366 CHECK_CMDWIN 367 reset_VIsual_and_resel(); /* stop Visual mode */ 368 win_rotate(TRUE, (int)Prenum1); /* upwards */ 369 break; 370 371 /* move window to the very top/bottom/left/right */ 372 case 'K': 373 case 'J': 374 case 'H': 375 case 'L': 376 CHECK_CMDWIN 377 win_totop((int)Prenum, 378 ((nchar == 'H' || nchar == 'L') ? WSP_VERT : 0) 379 | ((nchar == 'H' || nchar == 'K') ? WSP_TOP : WSP_BOT)); 380 break; 381 382 /* make all windows the same height */ 383 case '=': 384 #ifdef FEAT_GUI 385 need_mouse_correct = TRUE; 386 #endif 387 win_equal(NULL, FALSE, 'b'); 388 break; 389 390 /* increase current window height */ 391 case '+': 392 #ifdef FEAT_GUI 393 need_mouse_correct = TRUE; 394 #endif 395 win_setheight(curwin->w_height + (int)Prenum1); 396 break; 397 398 /* decrease current window height */ 399 case '-': 400 #ifdef FEAT_GUI 401 need_mouse_correct = TRUE; 402 #endif 403 win_setheight(curwin->w_height - (int)Prenum1); 404 break; 405 406 /* set current window height */ 407 case Ctrl__: 408 case '_': 409 #ifdef FEAT_GUI 410 need_mouse_correct = TRUE; 411 #endif 412 win_setheight(Prenum ? (int)Prenum : 9999); 413 break; 414 415 /* increase current window width */ 416 case '>': 417 #ifdef FEAT_GUI 418 need_mouse_correct = TRUE; 419 #endif 420 win_setwidth(curwin->w_width + (int)Prenum1); 421 break; 422 423 /* decrease current window width */ 424 case '<': 425 #ifdef FEAT_GUI 426 need_mouse_correct = TRUE; 427 #endif 428 win_setwidth(curwin->w_width - (int)Prenum1); 429 break; 430 431 /* set current window width */ 432 case '|': 433 #ifdef FEAT_GUI 434 need_mouse_correct = TRUE; 435 #endif 436 win_setwidth(Prenum != 0 ? (int)Prenum : 9999); 437 break; 438 439 /* jump to tag and split window if tag exists (in preview window) */ 440 #if defined(FEAT_QUICKFIX) 441 case '}': 442 CHECK_CMDWIN 443 if (Prenum) 444 g_do_tagpreview = Prenum; 445 else 446 g_do_tagpreview = p_pvh; 447 /*FALLTHROUGH*/ 448 #endif 449 case ']': 450 case Ctrl_RSB: 451 CHECK_CMDWIN 452 /* keep Visual mode, can select words to use as a tag */ 453 if (Prenum) 454 postponed_split = Prenum; 455 else 456 postponed_split = -1; 457 #ifdef FEAT_QUICKFIX 458 if (nchar != '}') 459 g_do_tagpreview = 0; 460 #endif 461 462 /* Execute the command right here, required when "wincmd ]" 463 * was used in a function. */ 464 do_nv_ident(Ctrl_RSB, NUL); 465 break; 466 467 #ifdef FEAT_SEARCHPATH 468 /* edit file name under cursor in a new window */ 469 case 'f': 470 case 'F': 471 case Ctrl_F: 472 wingotofile: 473 CHECK_CMDWIN 474 475 ptr = grab_file_name(Prenum1, &lnum); 476 if (ptr != NULL) 477 { 478 tabpage_T *oldtab = curtab; 479 win_T *oldwin = curwin; 480 # ifdef FEAT_GUI 481 need_mouse_correct = TRUE; 482 # endif 483 setpcmark(); 484 if (win_split(0, 0) == OK) 485 { 486 RESET_BINDING(curwin); 487 if (do_ecmd(0, ptr, NULL, NULL, ECMD_LASTL, 488 ECMD_HIDE, NULL) == FAIL) 489 { 490 /* Failed to open the file, close the window 491 * opened for it. */ 492 win_close(curwin, FALSE); 493 goto_tabpage_win(oldtab, oldwin); 494 } 495 else if (nchar == 'F' && lnum >= 0) 496 { 497 curwin->w_cursor.lnum = lnum; 498 check_cursor_lnum(); 499 beginline(BL_SOL | BL_FIX); 500 } 501 } 502 vim_free(ptr); 503 } 504 break; 505 #endif 506 507 #ifdef FEAT_FIND_ID 508 /* Go to the first occurrence of the identifier under cursor along path in a 509 * new window -- webb 510 */ 511 case 'i': /* Go to any match */ 512 case Ctrl_I: 513 type = FIND_ANY; 514 /* FALLTHROUGH */ 515 case 'd': /* Go to definition, using 'define' */ 516 case Ctrl_D: 517 CHECK_CMDWIN 518 if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0) 519 break; 520 find_pattern_in_path(ptr, 0, len, TRUE, 521 Prenum == 0 ? TRUE : FALSE, type, 522 Prenum1, ACTION_SPLIT, (linenr_T)1, (linenr_T)MAXLNUM); 523 curwin->w_set_curswant = TRUE; 524 break; 525 #endif 526 527 case K_KENTER: 528 case CAR: 529 #if defined(FEAT_QUICKFIX) 530 /* 531 * In a quickfix window a <CR> jumps to the error under the 532 * cursor in a new window. 533 */ 534 if (bt_quickfix(curbuf)) 535 { 536 sprintf((char *)cbuf, "split +%ld%s", 537 (long)curwin->w_cursor.lnum, 538 (curwin->w_llist_ref == NULL) ? "cc" : "ll"); 539 do_cmdline_cmd(cbuf); 540 } 541 #endif 542 break; 543 544 545 /* CTRL-W g extended commands */ 546 case 'g': 547 case Ctrl_G: 548 CHECK_CMDWIN 549 #ifdef USE_ON_FLY_SCROLL 550 dont_scroll = TRUE; /* disallow scrolling here */ 551 #endif 552 ++no_mapping; 553 ++allow_keys; /* no mapping for xchar, but allow key codes */ 554 if (xchar == NUL) 555 xchar = plain_vgetc(); 556 LANGMAP_ADJUST(xchar, TRUE); 557 --no_mapping; 558 --allow_keys; 559 #ifdef FEAT_CMDL_INFO 560 (void)add_to_showcmd(xchar); 561 #endif 562 switch (xchar) 563 { 564 #if defined(FEAT_QUICKFIX) 565 case '}': 566 xchar = Ctrl_RSB; 567 if (Prenum) 568 g_do_tagpreview = Prenum; 569 else 570 g_do_tagpreview = p_pvh; 571 /*FALLTHROUGH*/ 572 #endif 573 case ']': 574 case Ctrl_RSB: 575 /* keep Visual mode, can select words to use as a tag */ 576 if (Prenum) 577 postponed_split = Prenum; 578 else 579 postponed_split = -1; 580 581 /* Execute the command right here, required when 582 * "wincmd g}" was used in a function. */ 583 do_nv_ident('g', xchar); 584 break; 585 586 #ifdef FEAT_SEARCHPATH 587 case 'f': /* CTRL-W gf: "gf" in a new tab page */ 588 case 'F': /* CTRL-W gF: "gF" in a new tab page */ 589 cmdmod.tab = tabpage_index(curtab) + 1; 590 nchar = xchar; 591 goto wingotofile; 592 #endif 593 default: 594 beep_flush(); 595 break; 596 } 597 break; 598 599 default: beep_flush(); 600 break; 601 } 602 } 603 604 /* 605 * Figure out the address type for ":wnncmd". 606 */ 607 void 608 get_wincmd_addr_type(char_u *arg, exarg_T *eap) 609 { 610 switch (*arg) 611 { 612 case 'S': 613 case Ctrl_S: 614 case 's': 615 case Ctrl_N: 616 case 'n': 617 case 'j': 618 case Ctrl_J: 619 case 'k': 620 case Ctrl_K: 621 case 'T': 622 case Ctrl_R: 623 case 'r': 624 case 'R': 625 case 'K': 626 case 'J': 627 case '+': 628 case '-': 629 case Ctrl__: 630 case '_': 631 case '|': 632 case ']': 633 case Ctrl_RSB: 634 case 'g': 635 case Ctrl_G: 636 case Ctrl_V: 637 case 'v': 638 case 'h': 639 case Ctrl_H: 640 case 'l': 641 case Ctrl_L: 642 case 'H': 643 case 'L': 644 case '>': 645 case '<': 646 #if defined(FEAT_QUICKFIX) 647 case '}': 648 #endif 649 #ifdef FEAT_SEARCHPATH 650 case 'f': 651 case 'F': 652 case Ctrl_F: 653 #endif 654 #ifdef FEAT_FIND_ID 655 case 'i': 656 case Ctrl_I: 657 case 'd': 658 case Ctrl_D: 659 #endif 660 /* window size or any count */ 661 eap->addr_type = ADDR_LINES; 662 break; 663 664 case Ctrl_HAT: 665 case '^': 666 /* buffer number */ 667 eap->addr_type = ADDR_BUFFERS; 668 break; 669 670 case Ctrl_Q: 671 case 'q': 672 case Ctrl_C: 673 case 'c': 674 case Ctrl_O: 675 case 'o': 676 case Ctrl_W: 677 case 'w': 678 case 'W': 679 case 'x': 680 case Ctrl_X: 681 /* window number */ 682 eap->addr_type = ADDR_WINDOWS; 683 break; 684 685 #if defined(FEAT_QUICKFIX) 686 case Ctrl_Z: 687 case 'z': 688 case 'P': 689 #endif 690 case 't': 691 case Ctrl_T: 692 case 'b': 693 case Ctrl_B: 694 case 'p': 695 case Ctrl_P: 696 case '=': 697 case CAR: 698 /* no count */ 699 eap->addr_type = 0; 700 break; 701 } 702 } 703 704 static void 705 cmd_with_count( 706 char *cmd, 707 char_u *bufp, 708 size_t bufsize, 709 long Prenum) 710 { 711 size_t len = STRLEN(cmd); 712 713 STRCPY(bufp, cmd); 714 if (Prenum > 0) 715 vim_snprintf((char *)bufp + len, bufsize - len, "%ld", Prenum); 716 } 717 718 /* 719 * split the current window, implements CTRL-W s and :split 720 * 721 * "size" is the height or width for the new window, 0 to use half of current 722 * height or width. 723 * 724 * "flags": 725 * WSP_ROOM: require enough room for new window 726 * WSP_VERT: vertical split. 727 * WSP_TOP: open window at the top-left of the shell (help window). 728 * WSP_BOT: open window at the bottom-right of the shell (quickfix window). 729 * WSP_HELP: creating the help window, keep layout snapshot 730 * 731 * return FAIL for failure, OK otherwise 732 */ 733 int 734 win_split(int size, int flags) 735 { 736 /* When the ":tab" modifier was used open a new tab page instead. */ 737 if (may_open_tabpage() == OK) 738 return OK; 739 740 /* Add flags from ":vertical", ":topleft" and ":botright". */ 741 flags |= cmdmod.split; 742 if ((flags & WSP_TOP) && (flags & WSP_BOT)) 743 { 744 EMSG(_("E442: Can't split topleft and botright at the same time")); 745 return FAIL; 746 } 747 748 /* When creating the help window make a snapshot of the window layout. 749 * Otherwise clear the snapshot, it's now invalid. */ 750 if (flags & WSP_HELP) 751 make_snapshot(SNAP_HELP_IDX); 752 else 753 clear_snapshot(curtab, SNAP_HELP_IDX); 754 755 return win_split_ins(size, flags, NULL, 0); 756 } 757 758 /* 759 * When "new_wp" is NULL: split the current window in two. 760 * When "new_wp" is not NULL: insert this window at the far 761 * top/left/right/bottom. 762 * return FAIL for failure, OK otherwise 763 */ 764 int 765 win_split_ins( 766 int size, 767 int flags, 768 win_T *new_wp, 769 int dir) 770 { 771 win_T *wp = new_wp; 772 win_T *oldwin; 773 int new_size = size; 774 int i; 775 int need_status = 0; 776 int do_equal = FALSE; 777 int needed; 778 int available; 779 int oldwin_height = 0; 780 int layout; 781 frame_T *frp, *curfrp, *frp2, *prevfrp; 782 int before; 783 int minheight; 784 int wmh1; 785 786 if (flags & WSP_TOP) 787 oldwin = firstwin; 788 else if (flags & WSP_BOT) 789 oldwin = lastwin; 790 else 791 oldwin = curwin; 792 793 /* add a status line when p_ls == 1 and splitting the first window */ 794 if (ONE_WINDOW && p_ls == 1 && oldwin->w_status_height == 0) 795 { 796 if (oldwin->w_height <= p_wmh && new_wp == NULL) 797 { 798 EMSG(_(e_noroom)); 799 return FAIL; 800 } 801 need_status = STATUS_HEIGHT; 802 } 803 804 #ifdef FEAT_GUI 805 /* May be needed for the scrollbars that are going to change. */ 806 if (gui.in_use) 807 out_flush(); 808 #endif 809 810 if (flags & WSP_VERT) 811 { 812 int wmw1; 813 int minwidth; 814 815 layout = FR_ROW; 816 817 /* 818 * Check if we are able to split the current window and compute its 819 * width. 820 */ 821 /* Current window requires at least 1 space. */ 822 wmw1 = (p_wmw == 0 ? 1 : p_wmw); 823 needed = wmw1 + 1; 824 if (flags & WSP_ROOM) 825 needed += p_wiw - wmw1; 826 if (flags & (WSP_BOT | WSP_TOP)) 827 { 828 minwidth = frame_minwidth(topframe, NOWIN); 829 available = topframe->fr_width; 830 needed += minwidth; 831 } 832 else if (p_ea) 833 { 834 minwidth = frame_minwidth(oldwin->w_frame, NOWIN); 835 prevfrp = oldwin->w_frame; 836 for (frp = oldwin->w_frame->fr_parent; frp != NULL; 837 frp = frp->fr_parent) 838 { 839 if (frp->fr_layout == FR_ROW) 840 for (frp2 = frp->fr_child; frp2 != NULL; 841 frp2 = frp2->fr_next) 842 if (frp2 != prevfrp) 843 minwidth += frame_minwidth(frp2, NOWIN); 844 prevfrp = frp; 845 } 846 available = topframe->fr_width; 847 needed += minwidth; 848 } 849 else 850 { 851 minwidth = frame_minwidth(oldwin->w_frame, NOWIN); 852 available = oldwin->w_frame->fr_width; 853 needed += minwidth; 854 } 855 if (available < needed && new_wp == NULL) 856 { 857 EMSG(_(e_noroom)); 858 return FAIL; 859 } 860 if (new_size == 0) 861 new_size = oldwin->w_width / 2; 862 if (new_size > available - minwidth - 1) 863 new_size = available - minwidth - 1; 864 if (new_size < wmw1) 865 new_size = wmw1; 866 867 /* if it doesn't fit in the current window, need win_equal() */ 868 if (oldwin->w_width - new_size - 1 < p_wmw) 869 do_equal = TRUE; 870 871 /* We don't like to take lines for the new window from a 872 * 'winfixwidth' window. Take them from a window to the left or right 873 * instead, if possible. Add one for the separator. */ 874 if (oldwin->w_p_wfw) 875 win_setwidth_win(oldwin->w_width + new_size + 1, oldwin); 876 877 /* Only make all windows the same width if one of them (except oldwin) 878 * is wider than one of the split windows. */ 879 if (!do_equal && p_ea && size == 0 && *p_ead != 'v' 880 && oldwin->w_frame->fr_parent != NULL) 881 { 882 frp = oldwin->w_frame->fr_parent->fr_child; 883 while (frp != NULL) 884 { 885 if (frp->fr_win != oldwin && frp->fr_win != NULL 886 && (frp->fr_win->w_width > new_size 887 || frp->fr_win->w_width > oldwin->w_width 888 - new_size - 1)) 889 { 890 do_equal = TRUE; 891 break; 892 } 893 frp = frp->fr_next; 894 } 895 } 896 } 897 else 898 { 899 layout = FR_COL; 900 901 /* 902 * Check if we are able to split the current window and compute its 903 * height. 904 */ 905 /* Current window requires at least 1 space. */ 906 wmh1 = (p_wmh == 0 ? 1 : p_wmh); 907 needed = wmh1 + STATUS_HEIGHT; 908 if (flags & WSP_ROOM) 909 needed += p_wh - wmh1; 910 if (flags & (WSP_BOT | WSP_TOP)) 911 { 912 minheight = frame_minheight(topframe, NOWIN) + need_status; 913 available = topframe->fr_height; 914 needed += minheight; 915 } 916 else if (p_ea) 917 { 918 minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; 919 prevfrp = oldwin->w_frame; 920 for (frp = oldwin->w_frame->fr_parent; frp != NULL; 921 frp = frp->fr_parent) 922 { 923 if (frp->fr_layout == FR_COL) 924 for (frp2 = frp->fr_child; frp2 != NULL; 925 frp2 = frp2->fr_next) 926 if (frp2 != prevfrp) 927 minheight += frame_minheight(frp2, NOWIN); 928 prevfrp = frp; 929 } 930 available = topframe->fr_height; 931 needed += minheight; 932 } 933 else 934 { 935 minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; 936 available = oldwin->w_frame->fr_height; 937 needed += minheight; 938 } 939 if (available < needed && new_wp == NULL) 940 { 941 EMSG(_(e_noroom)); 942 return FAIL; 943 } 944 oldwin_height = oldwin->w_height; 945 if (need_status) 946 { 947 oldwin->w_status_height = STATUS_HEIGHT; 948 oldwin_height -= STATUS_HEIGHT; 949 } 950 if (new_size == 0) 951 new_size = oldwin_height / 2; 952 if (new_size > available - minheight - STATUS_HEIGHT) 953 new_size = available - minheight - STATUS_HEIGHT; 954 if (new_size < wmh1) 955 new_size = wmh1; 956 957 /* if it doesn't fit in the current window, need win_equal() */ 958 if (oldwin_height - new_size - STATUS_HEIGHT < p_wmh) 959 do_equal = TRUE; 960 961 /* We don't like to take lines for the new window from a 962 * 'winfixheight' window. Take them from a window above or below 963 * instead, if possible. */ 964 if (oldwin->w_p_wfh) 965 { 966 win_setheight_win(oldwin->w_height + new_size + STATUS_HEIGHT, 967 oldwin); 968 oldwin_height = oldwin->w_height; 969 if (need_status) 970 oldwin_height -= STATUS_HEIGHT; 971 } 972 973 /* Only make all windows the same height if one of them (except oldwin) 974 * is higher than one of the split windows. */ 975 if (!do_equal && p_ea && size == 0 && *p_ead != 'h' 976 && oldwin->w_frame->fr_parent != NULL) 977 { 978 frp = oldwin->w_frame->fr_parent->fr_child; 979 while (frp != NULL) 980 { 981 if (frp->fr_win != oldwin && frp->fr_win != NULL 982 && (frp->fr_win->w_height > new_size 983 || frp->fr_win->w_height > oldwin_height - new_size 984 - STATUS_HEIGHT)) 985 { 986 do_equal = TRUE; 987 break; 988 } 989 frp = frp->fr_next; 990 } 991 } 992 } 993 994 /* 995 * allocate new window structure and link it in the window list 996 */ 997 if ((flags & WSP_TOP) == 0 998 && ((flags & WSP_BOT) 999 || (flags & WSP_BELOW) 1000 || (!(flags & WSP_ABOVE) 1001 && ( (flags & WSP_VERT) ? p_spr : p_sb)))) 1002 { 1003 /* new window below/right of current one */ 1004 if (new_wp == NULL) 1005 wp = win_alloc(oldwin, FALSE); 1006 else 1007 win_append(oldwin, wp); 1008 } 1009 else 1010 { 1011 if (new_wp == NULL) 1012 wp = win_alloc(oldwin->w_prev, FALSE); 1013 else 1014 win_append(oldwin->w_prev, wp); 1015 } 1016 1017 if (new_wp == NULL) 1018 { 1019 if (wp == NULL) 1020 return FAIL; 1021 1022 new_frame(wp); 1023 if (wp->w_frame == NULL) 1024 { 1025 win_free(wp, NULL); 1026 return FAIL; 1027 } 1028 1029 /* make the contents of the new window the same as the current one */ 1030 win_init(wp, curwin, flags); 1031 } 1032 1033 /* 1034 * Reorganise the tree of frames to insert the new window. 1035 */ 1036 if (flags & (WSP_TOP | WSP_BOT)) 1037 { 1038 if ((topframe->fr_layout == FR_COL && (flags & WSP_VERT) == 0) 1039 || (topframe->fr_layout == FR_ROW && (flags & WSP_VERT) != 0)) 1040 { 1041 curfrp = topframe->fr_child; 1042 if (flags & WSP_BOT) 1043 while (curfrp->fr_next != NULL) 1044 curfrp = curfrp->fr_next; 1045 } 1046 else 1047 curfrp = topframe; 1048 before = (flags & WSP_TOP); 1049 } 1050 else 1051 { 1052 curfrp = oldwin->w_frame; 1053 if (flags & WSP_BELOW) 1054 before = FALSE; 1055 else if (flags & WSP_ABOVE) 1056 before = TRUE; 1057 else if (flags & WSP_VERT) 1058 before = !p_spr; 1059 else 1060 before = !p_sb; 1061 } 1062 if (curfrp->fr_parent == NULL || curfrp->fr_parent->fr_layout != layout) 1063 { 1064 /* Need to create a new frame in the tree to make a branch. */ 1065 frp = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); 1066 *frp = *curfrp; 1067 curfrp->fr_layout = layout; 1068 frp->fr_parent = curfrp; 1069 frp->fr_next = NULL; 1070 frp->fr_prev = NULL; 1071 curfrp->fr_child = frp; 1072 curfrp->fr_win = NULL; 1073 curfrp = frp; 1074 if (frp->fr_win != NULL) 1075 oldwin->w_frame = frp; 1076 else 1077 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 1078 frp->fr_parent = curfrp; 1079 } 1080 1081 if (new_wp == NULL) 1082 frp = wp->w_frame; 1083 else 1084 frp = new_wp->w_frame; 1085 frp->fr_parent = curfrp->fr_parent; 1086 1087 /* Insert the new frame at the right place in the frame list. */ 1088 if (before) 1089 frame_insert(curfrp, frp); 1090 else 1091 frame_append(curfrp, frp); 1092 1093 /* Set w_fraction now so that the cursor keeps the same relative 1094 * vertical position. */ 1095 if (oldwin->w_height > 0) 1096 set_fraction(oldwin); 1097 wp->w_fraction = oldwin->w_fraction; 1098 1099 if (flags & WSP_VERT) 1100 { 1101 wp->w_p_scr = curwin->w_p_scr; 1102 1103 if (need_status) 1104 { 1105 win_new_height(oldwin, oldwin->w_height - 1); 1106 oldwin->w_status_height = need_status; 1107 } 1108 if (flags & (WSP_TOP | WSP_BOT)) 1109 { 1110 /* set height and row of new window to full height */ 1111 wp->w_winrow = tabline_height(); 1112 win_new_height(wp, curfrp->fr_height - (p_ls > 0)); 1113 wp->w_status_height = (p_ls > 0); 1114 } 1115 else 1116 { 1117 /* height and row of new window is same as current window */ 1118 wp->w_winrow = oldwin->w_winrow; 1119 win_new_height(wp, oldwin->w_height); 1120 wp->w_status_height = oldwin->w_status_height; 1121 } 1122 frp->fr_height = curfrp->fr_height; 1123 1124 /* "new_size" of the current window goes to the new window, use 1125 * one column for the vertical separator */ 1126 win_new_width(wp, new_size); 1127 if (before) 1128 wp->w_vsep_width = 1; 1129 else 1130 { 1131 wp->w_vsep_width = oldwin->w_vsep_width; 1132 oldwin->w_vsep_width = 1; 1133 } 1134 if (flags & (WSP_TOP | WSP_BOT)) 1135 { 1136 if (flags & WSP_BOT) 1137 frame_add_vsep(curfrp); 1138 /* Set width of neighbor frame */ 1139 frame_new_width(curfrp, curfrp->fr_width 1140 - (new_size + ((flags & WSP_TOP) != 0)), flags & WSP_TOP, 1141 FALSE); 1142 } 1143 else 1144 win_new_width(oldwin, oldwin->w_width - (new_size + 1)); 1145 if (before) /* new window left of current one */ 1146 { 1147 wp->w_wincol = oldwin->w_wincol; 1148 oldwin->w_wincol += new_size + 1; 1149 } 1150 else /* new window right of current one */ 1151 wp->w_wincol = oldwin->w_wincol + oldwin->w_width + 1; 1152 frame_fix_width(oldwin); 1153 frame_fix_width(wp); 1154 } 1155 else 1156 { 1157 /* width and column of new window is same as current window */ 1158 if (flags & (WSP_TOP | WSP_BOT)) 1159 { 1160 wp->w_wincol = 0; 1161 win_new_width(wp, Columns); 1162 wp->w_vsep_width = 0; 1163 } 1164 else 1165 { 1166 wp->w_wincol = oldwin->w_wincol; 1167 win_new_width(wp, oldwin->w_width); 1168 wp->w_vsep_width = oldwin->w_vsep_width; 1169 } 1170 frp->fr_width = curfrp->fr_width; 1171 1172 /* "new_size" of the current window goes to the new window, use 1173 * one row for the status line */ 1174 win_new_height(wp, new_size); 1175 if (flags & (WSP_TOP | WSP_BOT)) 1176 { 1177 int new_fr_height = curfrp->fr_height - new_size; 1178 1179 if (!((flags & WSP_BOT) && p_ls == 0)) 1180 new_fr_height -= STATUS_HEIGHT; 1181 frame_new_height(curfrp, new_fr_height, flags & WSP_TOP, FALSE); 1182 } 1183 else 1184 win_new_height(oldwin, oldwin_height - (new_size + STATUS_HEIGHT)); 1185 if (before) /* new window above current one */ 1186 { 1187 wp->w_winrow = oldwin->w_winrow; 1188 wp->w_status_height = STATUS_HEIGHT; 1189 oldwin->w_winrow += wp->w_height + STATUS_HEIGHT; 1190 } 1191 else /* new window below current one */ 1192 { 1193 wp->w_winrow = oldwin->w_winrow + oldwin->w_height + STATUS_HEIGHT; 1194 wp->w_status_height = oldwin->w_status_height; 1195 if (!(flags & WSP_BOT)) 1196 oldwin->w_status_height = STATUS_HEIGHT; 1197 } 1198 if (flags & WSP_BOT) 1199 frame_add_statusline(curfrp); 1200 frame_fix_height(wp); 1201 frame_fix_height(oldwin); 1202 } 1203 1204 if (flags & (WSP_TOP | WSP_BOT)) 1205 (void)win_comp_pos(); 1206 1207 /* 1208 * Both windows need redrawing 1209 */ 1210 redraw_win_later(wp, NOT_VALID); 1211 wp->w_redr_status = TRUE; 1212 redraw_win_later(oldwin, NOT_VALID); 1213 oldwin->w_redr_status = TRUE; 1214 1215 if (need_status) 1216 { 1217 msg_row = Rows - 1; 1218 msg_col = sc_col; 1219 msg_clr_eos_force(); /* Old command/ruler may still be there */ 1220 comp_col(); 1221 msg_row = Rows - 1; 1222 msg_col = 0; /* put position back at start of line */ 1223 } 1224 1225 /* 1226 * equalize the window sizes. 1227 */ 1228 if (do_equal || dir != 0) 1229 win_equal(wp, TRUE, 1230 (flags & WSP_VERT) ? (dir == 'v' ? 'b' : 'h') 1231 : dir == 'h' ? 'b' : 'v'); 1232 1233 /* Don't change the window height/width to 'winheight' / 'winwidth' if a 1234 * size was given. */ 1235 if (flags & WSP_VERT) 1236 { 1237 i = p_wiw; 1238 if (size != 0) 1239 p_wiw = size; 1240 1241 # ifdef FEAT_GUI 1242 /* When 'guioptions' includes 'L' or 'R' may have to add scrollbars. */ 1243 if (gui.in_use) 1244 gui_init_which_components(NULL); 1245 # endif 1246 } 1247 else 1248 { 1249 i = p_wh; 1250 if (size != 0) 1251 p_wh = size; 1252 } 1253 1254 #ifdef FEAT_JUMPLIST 1255 /* Keep same changelist position in new window. */ 1256 wp->w_changelistidx = oldwin->w_changelistidx; 1257 #endif 1258 1259 /* 1260 * make the new window the current window 1261 */ 1262 win_enter_ext(wp, FALSE, FALSE, TRUE, TRUE, TRUE); 1263 if (flags & WSP_VERT) 1264 p_wiw = i; 1265 else 1266 p_wh = i; 1267 1268 return OK; 1269 } 1270 1271 1272 /* 1273 * Initialize window "newp" from window "oldp". 1274 * Used when splitting a window and when creating a new tab page. 1275 * The windows will both edit the same buffer. 1276 * WSP_NEWLOC may be specified in flags to prevent the location list from 1277 * being copied. 1278 */ 1279 static void 1280 win_init(win_T *newp, win_T *oldp, int flags UNUSED) 1281 { 1282 int i; 1283 1284 newp->w_buffer = oldp->w_buffer; 1285 #ifdef FEAT_SYN_HL 1286 newp->w_s = &(oldp->w_buffer->b_s); 1287 #endif 1288 oldp->w_buffer->b_nwindows++; 1289 newp->w_cursor = oldp->w_cursor; 1290 newp->w_valid = 0; 1291 newp->w_curswant = oldp->w_curswant; 1292 newp->w_set_curswant = oldp->w_set_curswant; 1293 newp->w_topline = oldp->w_topline; 1294 #ifdef FEAT_DIFF 1295 newp->w_topfill = oldp->w_topfill; 1296 #endif 1297 newp->w_leftcol = oldp->w_leftcol; 1298 newp->w_pcmark = oldp->w_pcmark; 1299 newp->w_prev_pcmark = oldp->w_prev_pcmark; 1300 newp->w_alt_fnum = oldp->w_alt_fnum; 1301 newp->w_wrow = oldp->w_wrow; 1302 newp->w_fraction = oldp->w_fraction; 1303 newp->w_prev_fraction_row = oldp->w_prev_fraction_row; 1304 #ifdef FEAT_JUMPLIST 1305 copy_jumplist(oldp, newp); 1306 #endif 1307 #ifdef FEAT_QUICKFIX 1308 if (flags & WSP_NEWLOC) 1309 { 1310 /* Don't copy the location list. */ 1311 newp->w_llist = NULL; 1312 newp->w_llist_ref = NULL; 1313 } 1314 else 1315 copy_loclist(oldp, newp); 1316 #endif 1317 newp->w_localdir = (oldp->w_localdir == NULL) 1318 ? NULL : vim_strsave(oldp->w_localdir); 1319 1320 /* copy tagstack and folds */ 1321 for (i = 0; i < oldp->w_tagstacklen; i++) 1322 { 1323 newp->w_tagstack[i] = oldp->w_tagstack[i]; 1324 if (newp->w_tagstack[i].tagname != NULL) 1325 newp->w_tagstack[i].tagname = 1326 vim_strsave(newp->w_tagstack[i].tagname); 1327 } 1328 newp->w_tagstackidx = oldp->w_tagstackidx; 1329 newp->w_tagstacklen = oldp->w_tagstacklen; 1330 #ifdef FEAT_FOLDING 1331 copyFoldingState(oldp, newp); 1332 #endif 1333 1334 win_init_some(newp, oldp); 1335 1336 #ifdef FEAT_SYN_HL 1337 check_colorcolumn(newp); 1338 #endif 1339 } 1340 1341 /* 1342 * Initialize window "newp" from window "old". 1343 * Only the essential things are copied. 1344 */ 1345 static void 1346 win_init_some(win_T *newp, win_T *oldp) 1347 { 1348 /* Use the same argument list. */ 1349 newp->w_alist = oldp->w_alist; 1350 ++newp->w_alist->al_refcount; 1351 newp->w_arg_idx = oldp->w_arg_idx; 1352 1353 /* copy options from existing window */ 1354 win_copy_options(oldp, newp); 1355 } 1356 1357 #endif /* FEAT_WINDOWS */ 1358 1359 #if defined(FEAT_WINDOWS) || defined(PROTO) 1360 /* 1361 * Check if "win" is a pointer to an existing window in the current tab page. 1362 */ 1363 int 1364 win_valid(win_T *win) 1365 { 1366 win_T *wp; 1367 1368 if (win == NULL) 1369 return FALSE; 1370 FOR_ALL_WINDOWS(wp) 1371 if (wp == win) 1372 return TRUE; 1373 return FALSE; 1374 } 1375 1376 /* 1377 * Check if "win" is a pointer to an existing window in any tab page. 1378 */ 1379 int 1380 win_valid_any_tab(win_T *win) 1381 { 1382 win_T *wp; 1383 tabpage_T *tp; 1384 1385 if (win == NULL) 1386 return FALSE; 1387 FOR_ALL_TABPAGES(tp) 1388 { 1389 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 1390 { 1391 if (wp == win) 1392 return TRUE; 1393 } 1394 } 1395 return FALSE; 1396 } 1397 1398 /* 1399 * Return the number of windows. 1400 */ 1401 int 1402 win_count(void) 1403 { 1404 win_T *wp; 1405 int count = 0; 1406 1407 FOR_ALL_WINDOWS(wp) 1408 ++count; 1409 return count; 1410 } 1411 1412 /* 1413 * Make "count" windows on the screen. 1414 * Return actual number of windows on the screen. 1415 * Must be called when there is just one window, filling the whole screen 1416 * (excluding the command line). 1417 */ 1418 int 1419 make_windows( 1420 int count, 1421 int vertical UNUSED) /* split windows vertically if TRUE */ 1422 { 1423 int maxcount; 1424 int todo; 1425 1426 if (vertical) 1427 { 1428 /* Each windows needs at least 'winminwidth' lines and a separator 1429 * column. */ 1430 maxcount = (curwin->w_width + curwin->w_vsep_width 1431 - (p_wiw - p_wmw)) / (p_wmw + 1); 1432 } 1433 else 1434 { 1435 /* Each window needs at least 'winminheight' lines and a status line. */ 1436 maxcount = (curwin->w_height + curwin->w_status_height 1437 - (p_wh - p_wmh)) / (p_wmh + STATUS_HEIGHT); 1438 } 1439 1440 if (maxcount < 2) 1441 maxcount = 2; 1442 if (count > maxcount) 1443 count = maxcount; 1444 1445 /* 1446 * add status line now, otherwise first window will be too big 1447 */ 1448 if (count > 1) 1449 last_status(TRUE); 1450 1451 #ifdef FEAT_AUTOCMD 1452 /* 1453 * Don't execute autocommands while creating the windows. Must do that 1454 * when putting the buffers in the windows. 1455 */ 1456 block_autocmds(); 1457 #endif 1458 1459 /* todo is number of windows left to create */ 1460 for (todo = count - 1; todo > 0; --todo) 1461 if (vertical) 1462 { 1463 if (win_split(curwin->w_width - (curwin->w_width - todo) 1464 / (todo + 1) - 1, WSP_VERT | WSP_ABOVE) == FAIL) 1465 break; 1466 } 1467 else 1468 { 1469 if (win_split(curwin->w_height - (curwin->w_height - todo 1470 * STATUS_HEIGHT) / (todo + 1) 1471 - STATUS_HEIGHT, WSP_ABOVE) == FAIL) 1472 break; 1473 } 1474 1475 #ifdef FEAT_AUTOCMD 1476 unblock_autocmds(); 1477 #endif 1478 1479 /* return actual number of windows */ 1480 return (count - todo); 1481 } 1482 1483 /* 1484 * Exchange current and next window 1485 */ 1486 static void 1487 win_exchange(long Prenum) 1488 { 1489 frame_T *frp; 1490 frame_T *frp2; 1491 win_T *wp; 1492 win_T *wp2; 1493 int temp; 1494 1495 if (ONE_WINDOW) /* just one window */ 1496 { 1497 beep_flush(); 1498 return; 1499 } 1500 1501 #ifdef FEAT_GUI 1502 need_mouse_correct = TRUE; 1503 #endif 1504 1505 /* 1506 * find window to exchange with 1507 */ 1508 if (Prenum) 1509 { 1510 frp = curwin->w_frame->fr_parent->fr_child; 1511 while (frp != NULL && --Prenum > 0) 1512 frp = frp->fr_next; 1513 } 1514 else if (curwin->w_frame->fr_next != NULL) /* Swap with next */ 1515 frp = curwin->w_frame->fr_next; 1516 else /* Swap last window in row/col with previous */ 1517 frp = curwin->w_frame->fr_prev; 1518 1519 /* We can only exchange a window with another window, not with a frame 1520 * containing windows. */ 1521 if (frp == NULL || frp->fr_win == NULL || frp->fr_win == curwin) 1522 return; 1523 wp = frp->fr_win; 1524 1525 /* 1526 * 1. remove curwin from the list. Remember after which window it was in wp2 1527 * 2. insert curwin before wp in the list 1528 * if wp != wp2 1529 * 3. remove wp from the list 1530 * 4. insert wp after wp2 1531 * 5. exchange the status line height and vsep width. 1532 */ 1533 wp2 = curwin->w_prev; 1534 frp2 = curwin->w_frame->fr_prev; 1535 if (wp->w_prev != curwin) 1536 { 1537 win_remove(curwin, NULL); 1538 frame_remove(curwin->w_frame); 1539 win_append(wp->w_prev, curwin); 1540 frame_insert(frp, curwin->w_frame); 1541 } 1542 if (wp != wp2) 1543 { 1544 win_remove(wp, NULL); 1545 frame_remove(wp->w_frame); 1546 win_append(wp2, wp); 1547 if (frp2 == NULL) 1548 frame_insert(wp->w_frame->fr_parent->fr_child, wp->w_frame); 1549 else 1550 frame_append(frp2, wp->w_frame); 1551 } 1552 temp = curwin->w_status_height; 1553 curwin->w_status_height = wp->w_status_height; 1554 wp->w_status_height = temp; 1555 temp = curwin->w_vsep_width; 1556 curwin->w_vsep_width = wp->w_vsep_width; 1557 wp->w_vsep_width = temp; 1558 1559 /* If the windows are not in the same frame, exchange the sizes to avoid 1560 * messing up the window layout. Otherwise fix the frame sizes. */ 1561 if (curwin->w_frame->fr_parent != wp->w_frame->fr_parent) 1562 { 1563 temp = curwin->w_height; 1564 curwin->w_height = wp->w_height; 1565 wp->w_height = temp; 1566 temp = curwin->w_width; 1567 curwin->w_width = wp->w_width; 1568 wp->w_width = temp; 1569 } 1570 else 1571 { 1572 frame_fix_height(curwin); 1573 frame_fix_height(wp); 1574 frame_fix_width(curwin); 1575 frame_fix_width(wp); 1576 } 1577 1578 (void)win_comp_pos(); /* recompute window positions */ 1579 1580 win_enter(wp, TRUE); 1581 redraw_later(CLEAR); 1582 } 1583 1584 /* 1585 * rotate windows: if upwards TRUE the second window becomes the first one 1586 * if upwards FALSE the first window becomes the second one 1587 */ 1588 static void 1589 win_rotate(int upwards, int count) 1590 { 1591 win_T *wp1; 1592 win_T *wp2; 1593 frame_T *frp; 1594 int n; 1595 1596 if (ONE_WINDOW) /* nothing to do */ 1597 { 1598 beep_flush(); 1599 return; 1600 } 1601 1602 #ifdef FEAT_GUI 1603 need_mouse_correct = TRUE; 1604 #endif 1605 1606 /* Check if all frames in this row/col have one window. */ 1607 for (frp = curwin->w_frame->fr_parent->fr_child; frp != NULL; 1608 frp = frp->fr_next) 1609 if (frp->fr_win == NULL) 1610 { 1611 EMSG(_("E443: Cannot rotate when another window is split")); 1612 return; 1613 } 1614 1615 while (count--) 1616 { 1617 if (upwards) /* first window becomes last window */ 1618 { 1619 /* remove first window/frame from the list */ 1620 frp = curwin->w_frame->fr_parent->fr_child; 1621 wp1 = frp->fr_win; 1622 win_remove(wp1, NULL); 1623 frame_remove(frp); 1624 1625 /* find last frame and append removed window/frame after it */ 1626 for ( ; frp->fr_next != NULL; frp = frp->fr_next) 1627 ; 1628 win_append(frp->fr_win, wp1); 1629 frame_append(frp, wp1->w_frame); 1630 1631 wp2 = frp->fr_win; /* previously last window */ 1632 } 1633 else /* last window becomes first window */ 1634 { 1635 /* find last window/frame in the list and remove it */ 1636 for (frp = curwin->w_frame; frp->fr_next != NULL; 1637 frp = frp->fr_next) 1638 ; 1639 wp1 = frp->fr_win; 1640 wp2 = wp1->w_prev; /* will become last window */ 1641 win_remove(wp1, NULL); 1642 frame_remove(frp); 1643 1644 /* append the removed window/frame before the first in the list */ 1645 win_append(frp->fr_parent->fr_child->fr_win->w_prev, wp1); 1646 frame_insert(frp->fr_parent->fr_child, frp); 1647 } 1648 1649 /* exchange status height and vsep width of old and new last window */ 1650 n = wp2->w_status_height; 1651 wp2->w_status_height = wp1->w_status_height; 1652 wp1->w_status_height = n; 1653 frame_fix_height(wp1); 1654 frame_fix_height(wp2); 1655 n = wp2->w_vsep_width; 1656 wp2->w_vsep_width = wp1->w_vsep_width; 1657 wp1->w_vsep_width = n; 1658 frame_fix_width(wp1); 1659 frame_fix_width(wp2); 1660 1661 /* recompute w_winrow and w_wincol for all windows */ 1662 (void)win_comp_pos(); 1663 } 1664 1665 redraw_later(CLEAR); 1666 } 1667 1668 /* 1669 * Move the current window to the very top/bottom/left/right of the screen. 1670 */ 1671 static void 1672 win_totop(int size, int flags) 1673 { 1674 int dir; 1675 int height = curwin->w_height; 1676 1677 if (ONE_WINDOW) 1678 { 1679 beep_flush(); 1680 return; 1681 } 1682 1683 /* Remove the window and frame from the tree of frames. */ 1684 (void)winframe_remove(curwin, &dir, NULL); 1685 win_remove(curwin, NULL); 1686 last_status(FALSE); /* may need to remove last status line */ 1687 (void)win_comp_pos(); /* recompute window positions */ 1688 1689 /* Split a window on the desired side and put the window there. */ 1690 (void)win_split_ins(size, flags, curwin, dir); 1691 if (!(flags & WSP_VERT)) 1692 { 1693 win_setheight(height); 1694 if (p_ea) 1695 win_equal(curwin, TRUE, 'v'); 1696 } 1697 1698 #if defined(FEAT_GUI) 1699 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 1700 * scrollbars. Have to update them anyway. */ 1701 gui_may_update_scrollbars(); 1702 #endif 1703 } 1704 1705 /* 1706 * Move window "win1" to below/right of "win2" and make "win1" the current 1707 * window. Only works within the same frame! 1708 */ 1709 void 1710 win_move_after(win_T *win1, win_T *win2) 1711 { 1712 int height; 1713 1714 /* check if the arguments are reasonable */ 1715 if (win1 == win2) 1716 return; 1717 1718 /* check if there is something to do */ 1719 if (win2->w_next != win1) 1720 { 1721 /* may need move the status line/vertical separator of the last window 1722 * */ 1723 if (win1 == lastwin) 1724 { 1725 height = win1->w_prev->w_status_height; 1726 win1->w_prev->w_status_height = win1->w_status_height; 1727 win1->w_status_height = height; 1728 if (win1->w_prev->w_vsep_width == 1) 1729 { 1730 /* Remove the vertical separator from the last-but-one window, 1731 * add it to the last window. Adjust the frame widths. */ 1732 win1->w_prev->w_vsep_width = 0; 1733 win1->w_prev->w_frame->fr_width -= 1; 1734 win1->w_vsep_width = 1; 1735 win1->w_frame->fr_width += 1; 1736 } 1737 } 1738 else if (win2 == lastwin) 1739 { 1740 height = win1->w_status_height; 1741 win1->w_status_height = win2->w_status_height; 1742 win2->w_status_height = height; 1743 if (win1->w_vsep_width == 1) 1744 { 1745 /* Remove the vertical separator from win1, add it to the last 1746 * window, win2. Adjust the frame widths. */ 1747 win2->w_vsep_width = 1; 1748 win2->w_frame->fr_width += 1; 1749 win1->w_vsep_width = 0; 1750 win1->w_frame->fr_width -= 1; 1751 } 1752 } 1753 win_remove(win1, NULL); 1754 frame_remove(win1->w_frame); 1755 win_append(win2, win1); 1756 frame_append(win2->w_frame, win1->w_frame); 1757 1758 (void)win_comp_pos(); /* recompute w_winrow for all windows */ 1759 redraw_later(NOT_VALID); 1760 } 1761 win_enter(win1, FALSE); 1762 } 1763 1764 /* 1765 * Make all windows the same height. 1766 * 'next_curwin' will soon be the current window, make sure it has enough 1767 * rows. 1768 */ 1769 void 1770 win_equal( 1771 win_T *next_curwin, /* pointer to current window to be or NULL */ 1772 int current, /* do only frame with current window */ 1773 int dir) /* 'v' for vertically, 'h' for horizontally, 1774 'b' for both, 0 for using p_ead */ 1775 { 1776 if (dir == 0) 1777 dir = *p_ead; 1778 win_equal_rec(next_curwin == NULL ? curwin : next_curwin, current, 1779 topframe, dir, 0, tabline_height(), 1780 (int)Columns, topframe->fr_height); 1781 } 1782 1783 /* 1784 * Set a frame to a new position and height, spreading the available room 1785 * equally over contained frames. 1786 * The window "next_curwin" (if not NULL) should at least get the size from 1787 * 'winheight' and 'winwidth' if possible. 1788 */ 1789 static void 1790 win_equal_rec( 1791 win_T *next_curwin, /* pointer to current window to be or NULL */ 1792 int current, /* do only frame with current window */ 1793 frame_T *topfr, /* frame to set size off */ 1794 int dir, /* 'v', 'h' or 'b', see win_equal() */ 1795 int col, /* horizontal position for frame */ 1796 int row, /* vertical position for frame */ 1797 int width, /* new width of frame */ 1798 int height) /* new height of frame */ 1799 { 1800 int n, m; 1801 int extra_sep = 0; 1802 int wincount, totwincount = 0; 1803 frame_T *fr; 1804 int next_curwin_size = 0; 1805 int room = 0; 1806 int new_size; 1807 int has_next_curwin = 0; 1808 int hnc; 1809 1810 if (topfr->fr_layout == FR_LEAF) 1811 { 1812 /* Set the width/height of this frame. 1813 * Redraw when size or position changes */ 1814 if (topfr->fr_height != height || topfr->fr_win->w_winrow != row 1815 || topfr->fr_width != width || topfr->fr_win->w_wincol != col 1816 ) 1817 { 1818 topfr->fr_win->w_winrow = row; 1819 frame_new_height(topfr, height, FALSE, FALSE); 1820 topfr->fr_win->w_wincol = col; 1821 frame_new_width(topfr, width, FALSE, FALSE); 1822 redraw_all_later(CLEAR); 1823 } 1824 } 1825 else if (topfr->fr_layout == FR_ROW) 1826 { 1827 topfr->fr_width = width; 1828 topfr->fr_height = height; 1829 1830 if (dir != 'v') /* equalize frame widths */ 1831 { 1832 /* Compute the maximum number of windows horizontally in this 1833 * frame. */ 1834 n = frame_minwidth(topfr, NOWIN); 1835 /* add one for the rightmost window, it doesn't have a separator */ 1836 if (col + width == Columns) 1837 extra_sep = 1; 1838 else 1839 extra_sep = 0; 1840 totwincount = (n + extra_sep) / (p_wmw + 1); 1841 has_next_curwin = frame_has_win(topfr, next_curwin); 1842 1843 /* 1844 * Compute width for "next_curwin" window and room available for 1845 * other windows. 1846 * "m" is the minimal width when counting p_wiw for "next_curwin". 1847 */ 1848 m = frame_minwidth(topfr, next_curwin); 1849 room = width - m; 1850 if (room < 0) 1851 { 1852 next_curwin_size = p_wiw + room; 1853 room = 0; 1854 } 1855 else 1856 { 1857 next_curwin_size = -1; 1858 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 1859 { 1860 /* If 'winfixwidth' set keep the window width if 1861 * possible. 1862 * Watch out for this window being the next_curwin. */ 1863 if (frame_fixed_width(fr)) 1864 { 1865 n = frame_minwidth(fr, NOWIN); 1866 new_size = fr->fr_width; 1867 if (frame_has_win(fr, next_curwin)) 1868 { 1869 room += p_wiw - p_wmw; 1870 next_curwin_size = 0; 1871 if (new_size < p_wiw) 1872 new_size = p_wiw; 1873 } 1874 else 1875 /* These windows don't use up room. */ 1876 totwincount -= (n + (fr->fr_next == NULL 1877 ? extra_sep : 0)) / (p_wmw + 1); 1878 room -= new_size - n; 1879 if (room < 0) 1880 { 1881 new_size += room; 1882 room = 0; 1883 } 1884 fr->fr_newwidth = new_size; 1885 } 1886 } 1887 if (next_curwin_size == -1) 1888 { 1889 if (!has_next_curwin) 1890 next_curwin_size = 0; 1891 else if (totwincount > 1 1892 && (room + (totwincount - 2)) 1893 / (totwincount - 1) > p_wiw) 1894 { 1895 /* Can make all windows wider than 'winwidth', spread 1896 * the room equally. */ 1897 next_curwin_size = (room + p_wiw 1898 + (totwincount - 1) * p_wmw 1899 + (totwincount - 1)) / totwincount; 1900 room -= next_curwin_size - p_wiw; 1901 } 1902 else 1903 next_curwin_size = p_wiw; 1904 } 1905 } 1906 1907 if (has_next_curwin) 1908 --totwincount; /* don't count curwin */ 1909 } 1910 1911 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 1912 { 1913 n = m = 0; 1914 wincount = 1; 1915 if (fr->fr_next == NULL) 1916 /* last frame gets all that remains (avoid roundoff error) */ 1917 new_size = width; 1918 else if (dir == 'v') 1919 new_size = fr->fr_width; 1920 else if (frame_fixed_width(fr)) 1921 { 1922 new_size = fr->fr_newwidth; 1923 wincount = 0; /* doesn't count as a sizeable window */ 1924 } 1925 else 1926 { 1927 /* Compute the maximum number of windows horiz. in "fr". */ 1928 n = frame_minwidth(fr, NOWIN); 1929 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 1930 / (p_wmw + 1); 1931 m = frame_minwidth(fr, next_curwin); 1932 if (has_next_curwin) 1933 hnc = frame_has_win(fr, next_curwin); 1934 else 1935 hnc = FALSE; 1936 if (hnc) /* don't count next_curwin */ 1937 --wincount; 1938 if (totwincount == 0) 1939 new_size = room; 1940 else 1941 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 1942 / totwincount; 1943 if (hnc) /* add next_curwin size */ 1944 { 1945 next_curwin_size -= p_wiw - (m - n); 1946 new_size += next_curwin_size; 1947 room -= new_size - next_curwin_size; 1948 } 1949 else 1950 room -= new_size; 1951 new_size += n; 1952 } 1953 1954 /* Skip frame that is full width when splitting or closing a 1955 * window, unless equalizing all frames. */ 1956 if (!current || dir != 'v' || topfr->fr_parent != NULL 1957 || (new_size != fr->fr_width) 1958 || frame_has_win(fr, next_curwin)) 1959 win_equal_rec(next_curwin, current, fr, dir, col, row, 1960 new_size, height); 1961 col += new_size; 1962 width -= new_size; 1963 totwincount -= wincount; 1964 } 1965 } 1966 else /* topfr->fr_layout == FR_COL */ 1967 { 1968 topfr->fr_width = width; 1969 topfr->fr_height = height; 1970 1971 if (dir != 'h') /* equalize frame heights */ 1972 { 1973 /* Compute maximum number of windows vertically in this frame. */ 1974 n = frame_minheight(topfr, NOWIN); 1975 /* add one for the bottom window if it doesn't have a statusline */ 1976 if (row + height == cmdline_row && p_ls == 0) 1977 extra_sep = 1; 1978 else 1979 extra_sep = 0; 1980 totwincount = (n + extra_sep) / (p_wmh + 1); 1981 has_next_curwin = frame_has_win(topfr, next_curwin); 1982 1983 /* 1984 * Compute height for "next_curwin" window and room available for 1985 * other windows. 1986 * "m" is the minimal height when counting p_wh for "next_curwin". 1987 */ 1988 m = frame_minheight(topfr, next_curwin); 1989 room = height - m; 1990 if (room < 0) 1991 { 1992 /* The room is less then 'winheight', use all space for the 1993 * current window. */ 1994 next_curwin_size = p_wh + room; 1995 room = 0; 1996 } 1997 else 1998 { 1999 next_curwin_size = -1; 2000 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 2001 { 2002 /* If 'winfixheight' set keep the window height if 2003 * possible. 2004 * Watch out for this window being the next_curwin. */ 2005 if (frame_fixed_height(fr)) 2006 { 2007 n = frame_minheight(fr, NOWIN); 2008 new_size = fr->fr_height; 2009 if (frame_has_win(fr, next_curwin)) 2010 { 2011 room += p_wh - p_wmh; 2012 next_curwin_size = 0; 2013 if (new_size < p_wh) 2014 new_size = p_wh; 2015 } 2016 else 2017 /* These windows don't use up room. */ 2018 totwincount -= (n + (fr->fr_next == NULL 2019 ? extra_sep : 0)) / (p_wmh + 1); 2020 room -= new_size - n; 2021 if (room < 0) 2022 { 2023 new_size += room; 2024 room = 0; 2025 } 2026 fr->fr_newheight = new_size; 2027 } 2028 } 2029 if (next_curwin_size == -1) 2030 { 2031 if (!has_next_curwin) 2032 next_curwin_size = 0; 2033 else if (totwincount > 1 2034 && (room + (totwincount - 2)) 2035 / (totwincount - 1) > p_wh) 2036 { 2037 /* can make all windows higher than 'winheight', 2038 * spread the room equally. */ 2039 next_curwin_size = (room + p_wh 2040 + (totwincount - 1) * p_wmh 2041 + (totwincount - 1)) / totwincount; 2042 room -= next_curwin_size - p_wh; 2043 } 2044 else 2045 next_curwin_size = p_wh; 2046 } 2047 } 2048 2049 if (has_next_curwin) 2050 --totwincount; /* don't count curwin */ 2051 } 2052 2053 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 2054 { 2055 n = m = 0; 2056 wincount = 1; 2057 if (fr->fr_next == NULL) 2058 /* last frame gets all that remains (avoid roundoff error) */ 2059 new_size = height; 2060 else if (dir == 'h') 2061 new_size = fr->fr_height; 2062 else if (frame_fixed_height(fr)) 2063 { 2064 new_size = fr->fr_newheight; 2065 wincount = 0; /* doesn't count as a sizeable window */ 2066 } 2067 else 2068 { 2069 /* Compute the maximum number of windows vert. in "fr". */ 2070 n = frame_minheight(fr, NOWIN); 2071 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 2072 / (p_wmh + 1); 2073 m = frame_minheight(fr, next_curwin); 2074 if (has_next_curwin) 2075 hnc = frame_has_win(fr, next_curwin); 2076 else 2077 hnc = FALSE; 2078 if (hnc) /* don't count next_curwin */ 2079 --wincount; 2080 if (totwincount == 0) 2081 new_size = room; 2082 else 2083 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 2084 / totwincount; 2085 if (hnc) /* add next_curwin size */ 2086 { 2087 next_curwin_size -= p_wh - (m - n); 2088 new_size += next_curwin_size; 2089 room -= new_size - next_curwin_size; 2090 } 2091 else 2092 room -= new_size; 2093 new_size += n; 2094 } 2095 /* Skip frame that is full width when splitting or closing a 2096 * window, unless equalizing all frames. */ 2097 if (!current || dir != 'h' || topfr->fr_parent != NULL 2098 || (new_size != fr->fr_height) 2099 || frame_has_win(fr, next_curwin)) 2100 win_equal_rec(next_curwin, current, fr, dir, col, row, 2101 width, new_size); 2102 row += new_size; 2103 height -= new_size; 2104 totwincount -= wincount; 2105 } 2106 } 2107 } 2108 2109 /* 2110 * Close all windows for buffer "buf". 2111 */ 2112 void 2113 close_windows( 2114 buf_T *buf, 2115 int keep_curwin) /* don't close "curwin" */ 2116 { 2117 win_T *wp; 2118 tabpage_T *tp, *nexttp; 2119 int h = tabline_height(); 2120 #ifdef FEAT_AUTOCMD 2121 int count = tabpage_index(NULL); 2122 #endif 2123 2124 ++RedrawingDisabled; 2125 2126 for (wp = firstwin; wp != NULL && !ONE_WINDOW; ) 2127 { 2128 if (wp->w_buffer == buf && (!keep_curwin || wp != curwin) 2129 #ifdef FEAT_AUTOCMD 2130 && !(wp->w_closing || wp->w_buffer->b_locked > 0) 2131 #endif 2132 ) 2133 { 2134 if (win_close(wp, FALSE) == FAIL) 2135 /* If closing the window fails give up, to avoid looping 2136 * forever. */ 2137 break; 2138 2139 /* Start all over, autocommands may change the window layout. */ 2140 wp = firstwin; 2141 } 2142 else 2143 wp = wp->w_next; 2144 } 2145 2146 /* Also check windows in other tab pages. */ 2147 for (tp = first_tabpage; tp != NULL; tp = nexttp) 2148 { 2149 nexttp = tp->tp_next; 2150 if (tp != curtab) 2151 for (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next) 2152 if (wp->w_buffer == buf 2153 #ifdef FEAT_AUTOCMD 2154 && !(wp->w_closing || wp->w_buffer->b_locked > 0) 2155 #endif 2156 ) 2157 { 2158 win_close_othertab(wp, FALSE, tp); 2159 2160 /* Start all over, the tab page may be closed and 2161 * autocommands may change the window layout. */ 2162 nexttp = first_tabpage; 2163 break; 2164 } 2165 } 2166 2167 --RedrawingDisabled; 2168 2169 #ifdef FEAT_AUTOCMD 2170 if (count != tabpage_index(NULL)) 2171 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2172 #endif 2173 2174 redraw_tabline = TRUE; 2175 if (h != tabline_height()) 2176 shell_new_rows(); 2177 } 2178 2179 /* 2180 * Return TRUE if the current window is the only window that exists (ignoring 2181 * "aucmd_win"). 2182 * Returns FALSE if there is a window, possibly in another tab page. 2183 */ 2184 static int 2185 last_window(void) 2186 { 2187 return (one_window() && first_tabpage->tp_next == NULL); 2188 } 2189 2190 /* 2191 * Return TRUE if there is only one window other than "aucmd_win" in the 2192 * current tab page. 2193 */ 2194 int 2195 one_window(void) 2196 { 2197 #ifdef FEAT_AUTOCMD 2198 win_T *wp; 2199 int seen_one = FALSE; 2200 2201 FOR_ALL_WINDOWS(wp) 2202 { 2203 if (wp != aucmd_win) 2204 { 2205 if (seen_one) 2206 return FALSE; 2207 seen_one = TRUE; 2208 } 2209 } 2210 return TRUE; 2211 #else 2212 return ONE_WINDOW; 2213 #endif 2214 } 2215 2216 /* 2217 * Close the possibly last window in a tab page. 2218 * Returns TRUE when the window was closed already. 2219 */ 2220 static int 2221 close_last_window_tabpage( 2222 win_T *win, 2223 int free_buf, 2224 tabpage_T *prev_curtab) 2225 { 2226 if (ONE_WINDOW) 2227 { 2228 #ifdef FEAT_AUTOCMD 2229 buf_T *old_curbuf = curbuf; 2230 #endif 2231 2232 /* 2233 * Closing the last window in a tab page. First go to another tab 2234 * page and then close the window and the tab page. This avoids that 2235 * curwin and curtab are invalid while we are freeing memory, they may 2236 * be used in GUI events. 2237 * Don't trigger autocommands yet, they may use wrong values, so do 2238 * that below. 2239 */ 2240 goto_tabpage_tp(alt_tabpage(), FALSE, TRUE); 2241 redraw_tabline = TRUE; 2242 2243 /* Safety check: Autocommands may have closed the window when jumping 2244 * to the other tab page. */ 2245 if (valid_tabpage(prev_curtab) && prev_curtab->tp_firstwin == win) 2246 { 2247 int h = tabline_height(); 2248 2249 win_close_othertab(win, free_buf, prev_curtab); 2250 if (h != tabline_height()) 2251 shell_new_rows(); 2252 } 2253 /* Since goto_tabpage_tp above did not trigger *Enter autocommands, do 2254 * that now. */ 2255 #ifdef FEAT_AUTOCMD 2256 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2257 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 2258 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 2259 if (old_curbuf != curbuf) 2260 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2261 #endif 2262 return TRUE; 2263 } 2264 return FALSE; 2265 } 2266 2267 /* 2268 * Close window "win". Only works for the current tab page. 2269 * If "free_buf" is TRUE related buffer may be unloaded. 2270 * 2271 * Called by :quit, :close, :xit, :wq and findtag(). 2272 * Returns FAIL when the window was not closed. 2273 */ 2274 int 2275 win_close(win_T *win, int free_buf) 2276 { 2277 win_T *wp; 2278 #ifdef FEAT_AUTOCMD 2279 int other_buffer = FALSE; 2280 #endif 2281 int close_curwin = FALSE; 2282 int dir; 2283 int help_window = FALSE; 2284 tabpage_T *prev_curtab = curtab; 2285 2286 if (last_window()) 2287 { 2288 EMSG(_("E444: Cannot close last window")); 2289 return FAIL; 2290 } 2291 2292 #ifdef FEAT_AUTOCMD 2293 if (win->w_closing || (win->w_buffer != NULL 2294 && win->w_buffer->b_locked > 0)) 2295 return FAIL; /* window is already being closed */ 2296 if (win == aucmd_win) 2297 { 2298 EMSG(_("E813: Cannot close autocmd window")); 2299 return FAIL; 2300 } 2301 if ((firstwin == aucmd_win || lastwin == aucmd_win) && one_window()) 2302 { 2303 EMSG(_("E814: Cannot close window, only autocmd window would remain")); 2304 return FAIL; 2305 } 2306 #endif 2307 2308 /* When closing the last window in a tab page first go to another tab page 2309 * and then close the window and the tab page to avoid that curwin and 2310 * curtab are invalid while we are freeing memory. */ 2311 if (close_last_window_tabpage(win, free_buf, prev_curtab)) 2312 return FAIL; 2313 2314 /* When closing the help window, try restoring a snapshot after closing 2315 * the window. Otherwise clear the snapshot, it's now invalid. */ 2316 if (win->w_buffer != NULL && win->w_buffer->b_help) 2317 help_window = TRUE; 2318 else 2319 clear_snapshot(curtab, SNAP_HELP_IDX); 2320 2321 #ifdef FEAT_AUTOCMD 2322 if (win == curwin) 2323 { 2324 /* 2325 * Guess which window is going to be the new current window. 2326 * This may change because of the autocommands (sigh). 2327 */ 2328 wp = frame2win(win_altframe(win, NULL)); 2329 2330 /* 2331 * Be careful: If autocommands delete the window or cause this window 2332 * to be the last one left, return now. 2333 */ 2334 if (wp->w_buffer != curbuf) 2335 { 2336 other_buffer = TRUE; 2337 win->w_closing = TRUE; 2338 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 2339 if (!win_valid(win)) 2340 return FAIL; 2341 win->w_closing = FALSE; 2342 if (last_window()) 2343 return FAIL; 2344 } 2345 win->w_closing = TRUE; 2346 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 2347 if (!win_valid(win)) 2348 return FAIL; 2349 win->w_closing = FALSE; 2350 if (last_window()) 2351 return FAIL; 2352 # ifdef FEAT_EVAL 2353 /* autocmds may abort script processing */ 2354 if (aborting()) 2355 return FAIL; 2356 # endif 2357 } 2358 #endif 2359 2360 #ifdef FEAT_GUI 2361 /* Avoid trouble with scrollbars that are going to be deleted in 2362 * win_free(). */ 2363 if (gui.in_use) 2364 out_flush(); 2365 #endif 2366 2367 #ifdef FEAT_SYN_HL 2368 /* Free independent synblock before the buffer is freed. */ 2369 if (win->w_buffer != NULL) 2370 reset_synblock(win); 2371 #endif 2372 2373 /* 2374 * Close the link to the buffer. 2375 */ 2376 if (win->w_buffer != NULL) 2377 { 2378 bufref_T bufref; 2379 2380 set_bufref(&bufref, curbuf); 2381 #ifdef FEAT_AUTOCMD 2382 win->w_closing = TRUE; 2383 #endif 2384 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, TRUE); 2385 #ifdef FEAT_AUTOCMD 2386 if (win_valid_any_tab(win)) 2387 win->w_closing = FALSE; 2388 #endif 2389 /* Make sure curbuf is valid. It can become invalid if 'bufhidden' is 2390 * "wipe". */ 2391 if (!bufref_valid(&bufref)) 2392 curbuf = firstbuf; 2393 } 2394 2395 if (only_one_window() && win_valid(win) && win->w_buffer == NULL 2396 && (last_window() || curtab != prev_curtab 2397 || close_last_window_tabpage(win, free_buf, prev_curtab))) 2398 { 2399 /* Autocommands have close all windows, quit now. Restore 2400 * curwin->w_buffer, otherwise writing viminfo may fail. */ 2401 if (curwin->w_buffer == NULL) 2402 curwin->w_buffer = curbuf; 2403 getout(0); 2404 } 2405 2406 /* Autocommands may have moved to another tab page. */ 2407 if (curtab != prev_curtab && win_valid_any_tab(win) 2408 && win->w_buffer == NULL) 2409 { 2410 /* Need to close the window anyway, since the buffer is NULL. */ 2411 win_close_othertab(win, FALSE, prev_curtab); 2412 return FAIL; 2413 } 2414 2415 /* Autocommands may have closed the window already or closed the only 2416 * other window. */ 2417 if (!win_valid(win) || last_window() 2418 || close_last_window_tabpage(win, free_buf, prev_curtab)) 2419 return FAIL; 2420 2421 /* Free the memory used for the window and get the window that received 2422 * the screen space. */ 2423 wp = win_free_mem(win, &dir, NULL); 2424 2425 /* Make sure curwin isn't invalid. It can cause severe trouble when 2426 * printing an error message. For win_equal() curbuf needs to be valid 2427 * too. */ 2428 if (win == curwin) 2429 { 2430 curwin = wp; 2431 #ifdef FEAT_QUICKFIX 2432 if (wp->w_p_pvw || bt_quickfix(wp->w_buffer)) 2433 { 2434 /* 2435 * If the cursor goes to the preview or the quickfix window, try 2436 * finding another window to go to. 2437 */ 2438 for (;;) 2439 { 2440 if (wp->w_next == NULL) 2441 wp = firstwin; 2442 else 2443 wp = wp->w_next; 2444 if (wp == curwin) 2445 break; 2446 if (!wp->w_p_pvw && !bt_quickfix(wp->w_buffer)) 2447 { 2448 curwin = wp; 2449 break; 2450 } 2451 } 2452 } 2453 #endif 2454 curbuf = curwin->w_buffer; 2455 close_curwin = TRUE; 2456 2457 /* The cursor position may be invalid if the buffer changed after last 2458 * using the window. */ 2459 check_cursor(); 2460 } 2461 if (p_ea && (*p_ead == 'b' || *p_ead == dir)) 2462 win_equal(curwin, TRUE, dir); 2463 else 2464 win_comp_pos(); 2465 if (close_curwin) 2466 { 2467 win_enter_ext(wp, FALSE, TRUE, FALSE, TRUE, TRUE); 2468 #ifdef FEAT_AUTOCMD 2469 if (other_buffer) 2470 /* careful: after this wp and win may be invalid! */ 2471 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2472 #endif 2473 } 2474 2475 /* 2476 * If last window has a status line now and we don't want one, 2477 * remove the status line. 2478 */ 2479 last_status(FALSE); 2480 2481 /* After closing the help window, try restoring the window layout from 2482 * before it was opened. */ 2483 if (help_window) 2484 restore_snapshot(SNAP_HELP_IDX, close_curwin); 2485 2486 #if defined(FEAT_GUI) 2487 /* When 'guioptions' includes 'L' or 'R' may have to remove scrollbars. */ 2488 if (gui.in_use && !win_hasvertsplit()) 2489 gui_init_which_components(NULL); 2490 #endif 2491 2492 redraw_all_later(NOT_VALID); 2493 return OK; 2494 } 2495 2496 /* 2497 * Close window "win" in tab page "tp", which is not the current tab page. 2498 * This may be the last window in that tab page and result in closing the tab, 2499 * thus "tp" may become invalid! 2500 * Caller must check if buffer is hidden and whether the tabline needs to be 2501 * updated. 2502 */ 2503 void 2504 win_close_othertab(win_T *win, int free_buf, tabpage_T *tp) 2505 { 2506 win_T *wp; 2507 int dir; 2508 tabpage_T *ptp = NULL; 2509 int free_tp = FALSE; 2510 2511 #ifdef FEAT_AUTOCMD 2512 /* Get here with win->w_buffer == NULL when win_close() detects the tab 2513 * page changed. */ 2514 if (win->w_closing || (win->w_buffer != NULL 2515 && win->w_buffer->b_locked > 0)) 2516 return; /* window is already being closed */ 2517 #endif 2518 2519 if (win->w_buffer != NULL) 2520 /* Close the link to the buffer. */ 2521 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, FALSE); 2522 2523 /* Careful: Autocommands may have closed the tab page or made it the 2524 * current tab page. */ 2525 for (ptp = first_tabpage; ptp != NULL && ptp != tp; ptp = ptp->tp_next) 2526 ; 2527 if (ptp == NULL || tp == curtab) 2528 return; 2529 2530 /* Autocommands may have closed the window already. */ 2531 for (wp = tp->tp_firstwin; wp != NULL && wp != win; wp = wp->w_next) 2532 ; 2533 if (wp == NULL) 2534 return; 2535 2536 /* When closing the last window in a tab page remove the tab page. */ 2537 if (tp->tp_firstwin == tp->tp_lastwin) 2538 { 2539 if (tp == first_tabpage) 2540 first_tabpage = tp->tp_next; 2541 else 2542 { 2543 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tp; 2544 ptp = ptp->tp_next) 2545 ; 2546 if (ptp == NULL) 2547 { 2548 internal_error("win_close_othertab()"); 2549 return; 2550 } 2551 ptp->tp_next = tp->tp_next; 2552 } 2553 free_tp = TRUE; 2554 } 2555 2556 /* Free the memory used for the window. */ 2557 win_free_mem(win, &dir, tp); 2558 2559 if (free_tp) 2560 free_tabpage(tp); 2561 } 2562 2563 /* 2564 * Free the memory used for a window. 2565 * Returns a pointer to the window that got the freed up space. 2566 */ 2567 static win_T * 2568 win_free_mem( 2569 win_T *win, 2570 int *dirp, /* set to 'v' or 'h' for direction if 'ea' */ 2571 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 2572 { 2573 frame_T *frp; 2574 win_T *wp; 2575 2576 /* Remove the window and its frame from the tree of frames. */ 2577 frp = win->w_frame; 2578 wp = winframe_remove(win, dirp, tp); 2579 vim_free(frp); 2580 win_free(win, tp); 2581 2582 /* When deleting the current window of another tab page select a new 2583 * current window. */ 2584 if (tp != NULL && win == tp->tp_curwin) 2585 tp->tp_curwin = wp; 2586 2587 return wp; 2588 } 2589 2590 #if defined(EXITFREE) || defined(PROTO) 2591 void 2592 win_free_all(void) 2593 { 2594 int dummy; 2595 2596 # ifdef FEAT_WINDOWS 2597 while (first_tabpage->tp_next != NULL) 2598 tabpage_close(TRUE); 2599 # endif 2600 2601 # ifdef FEAT_AUTOCMD 2602 if (aucmd_win != NULL) 2603 { 2604 (void)win_free_mem(aucmd_win, &dummy, NULL); 2605 aucmd_win = NULL; 2606 } 2607 # endif 2608 2609 while (firstwin != NULL) 2610 (void)win_free_mem(firstwin, &dummy, NULL); 2611 2612 /* No window should be used after this. Set curwin to NULL to crash 2613 * instead of using freed memory. */ 2614 curwin = NULL; 2615 } 2616 #endif 2617 2618 /* 2619 * Remove a window and its frame from the tree of frames. 2620 * Returns a pointer to the window that got the freed up space. 2621 */ 2622 win_T * 2623 winframe_remove( 2624 win_T *win, 2625 int *dirp UNUSED, /* set to 'v' or 'h' for direction if 'ea' */ 2626 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 2627 { 2628 frame_T *frp, *frp2, *frp3; 2629 frame_T *frp_close = win->w_frame; 2630 win_T *wp; 2631 2632 /* 2633 * If there is only one window there is nothing to remove. 2634 */ 2635 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 2636 return NULL; 2637 2638 /* 2639 * Remove the window from its frame. 2640 */ 2641 frp2 = win_altframe(win, tp); 2642 wp = frame2win(frp2); 2643 2644 /* Remove this frame from the list of frames. */ 2645 frame_remove(frp_close); 2646 2647 if (frp_close->fr_parent->fr_layout == FR_COL) 2648 { 2649 /* When 'winfixheight' is set, try to find another frame in the column 2650 * (as close to the closed frame as possible) to distribute the height 2651 * to. */ 2652 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfh) 2653 { 2654 frp = frp_close->fr_prev; 2655 frp3 = frp_close->fr_next; 2656 while (frp != NULL || frp3 != NULL) 2657 { 2658 if (frp != NULL) 2659 { 2660 if (frp->fr_win != NULL && !frp->fr_win->w_p_wfh) 2661 { 2662 frp2 = frp; 2663 wp = frp->fr_win; 2664 break; 2665 } 2666 frp = frp->fr_prev; 2667 } 2668 if (frp3 != NULL) 2669 { 2670 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfh) 2671 { 2672 frp2 = frp3; 2673 wp = frp3->fr_win; 2674 break; 2675 } 2676 frp3 = frp3->fr_next; 2677 } 2678 } 2679 } 2680 frame_new_height(frp2, frp2->fr_height + frp_close->fr_height, 2681 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2682 *dirp = 'v'; 2683 } 2684 else 2685 { 2686 /* When 'winfixwidth' is set, try to find another frame in the column 2687 * (as close to the closed frame as possible) to distribute the width 2688 * to. */ 2689 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfw) 2690 { 2691 frp = frp_close->fr_prev; 2692 frp3 = frp_close->fr_next; 2693 while (frp != NULL || frp3 != NULL) 2694 { 2695 if (frp != NULL) 2696 { 2697 if (frp->fr_win != NULL && !frp->fr_win->w_p_wfw) 2698 { 2699 frp2 = frp; 2700 wp = frp->fr_win; 2701 break; 2702 } 2703 frp = frp->fr_prev; 2704 } 2705 if (frp3 != NULL) 2706 { 2707 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfw) 2708 { 2709 frp2 = frp3; 2710 wp = frp3->fr_win; 2711 break; 2712 } 2713 frp3 = frp3->fr_next; 2714 } 2715 } 2716 } 2717 frame_new_width(frp2, frp2->fr_width + frp_close->fr_width, 2718 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2719 *dirp = 'h'; 2720 } 2721 2722 /* If rows/columns go to a window below/right its positions need to be 2723 * updated. Can only be done after the sizes have been updated. */ 2724 if (frp2 == frp_close->fr_next) 2725 { 2726 int row = win->w_winrow; 2727 int col = W_WINCOL(win); 2728 2729 frame_comp_pos(frp2, &row, &col); 2730 } 2731 2732 if (frp2->fr_next == NULL && frp2->fr_prev == NULL) 2733 { 2734 /* There is no other frame in this list, move its info to the parent 2735 * and remove it. */ 2736 frp2->fr_parent->fr_layout = frp2->fr_layout; 2737 frp2->fr_parent->fr_child = frp2->fr_child; 2738 for (frp = frp2->fr_child; frp != NULL; frp = frp->fr_next) 2739 frp->fr_parent = frp2->fr_parent; 2740 frp2->fr_parent->fr_win = frp2->fr_win; 2741 if (frp2->fr_win != NULL) 2742 frp2->fr_win->w_frame = frp2->fr_parent; 2743 frp = frp2->fr_parent; 2744 vim_free(frp2); 2745 2746 frp2 = frp->fr_parent; 2747 if (frp2 != NULL && frp2->fr_layout == frp->fr_layout) 2748 { 2749 /* The frame above the parent has the same layout, have to merge 2750 * the frames into this list. */ 2751 if (frp2->fr_child == frp) 2752 frp2->fr_child = frp->fr_child; 2753 frp->fr_child->fr_prev = frp->fr_prev; 2754 if (frp->fr_prev != NULL) 2755 frp->fr_prev->fr_next = frp->fr_child; 2756 for (frp3 = frp->fr_child; ; frp3 = frp3->fr_next) 2757 { 2758 frp3->fr_parent = frp2; 2759 if (frp3->fr_next == NULL) 2760 { 2761 frp3->fr_next = frp->fr_next; 2762 if (frp->fr_next != NULL) 2763 frp->fr_next->fr_prev = frp3; 2764 break; 2765 } 2766 } 2767 vim_free(frp); 2768 } 2769 } 2770 2771 return wp; 2772 } 2773 2774 /* 2775 * Find out which frame is going to get the freed up space when "win" is 2776 * closed. 2777 * if 'splitbelow'/'splitleft' the space goes to the window above/left. 2778 * if 'nosplitbelow'/'nosplitleft' the space goes to the window below/right. 2779 * This makes opening a window and closing it immediately keep the same window 2780 * layout. 2781 */ 2782 static frame_T * 2783 win_altframe( 2784 win_T *win, 2785 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 2786 { 2787 frame_T *frp; 2788 int b; 2789 2790 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 2791 /* Last window in this tab page, will go to next tab page. */ 2792 return alt_tabpage()->tp_curwin->w_frame; 2793 2794 frp = win->w_frame; 2795 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW) 2796 b = p_spr; 2797 else 2798 b = p_sb; 2799 if ((!b && frp->fr_next != NULL) || frp->fr_prev == NULL) 2800 return frp->fr_next; 2801 return frp->fr_prev; 2802 } 2803 2804 /* 2805 * Return the tabpage that will be used if the current one is closed. 2806 */ 2807 static tabpage_T * 2808 alt_tabpage(void) 2809 { 2810 tabpage_T *tp; 2811 2812 /* Use the next tab page if possible. */ 2813 if (curtab->tp_next != NULL) 2814 return curtab->tp_next; 2815 2816 /* Find the last but one tab page. */ 2817 for (tp = first_tabpage; tp->tp_next != curtab; tp = tp->tp_next) 2818 ; 2819 return tp; 2820 } 2821 2822 /* 2823 * Find the left-upper window in frame "frp". 2824 */ 2825 static win_T * 2826 frame2win(frame_T *frp) 2827 { 2828 while (frp->fr_win == NULL) 2829 frp = frp->fr_child; 2830 return frp->fr_win; 2831 } 2832 2833 /* 2834 * Return TRUE if frame "frp" contains window "wp". 2835 */ 2836 static int 2837 frame_has_win(frame_T *frp, win_T *wp) 2838 { 2839 frame_T *p; 2840 2841 if (frp->fr_layout == FR_LEAF) 2842 return frp->fr_win == wp; 2843 2844 for (p = frp->fr_child; p != NULL; p = p->fr_next) 2845 if (frame_has_win(p, wp)) 2846 return TRUE; 2847 return FALSE; 2848 } 2849 2850 /* 2851 * Set a new height for a frame. Recursively sets the height for contained 2852 * frames and windows. Caller must take care of positions. 2853 */ 2854 static void 2855 frame_new_height( 2856 frame_T *topfrp, 2857 int height, 2858 int topfirst, /* resize topmost contained frame first */ 2859 int wfh) /* obey 'winfixheight' when there is a choice; 2860 may cause the height not to be set */ 2861 { 2862 frame_T *frp; 2863 int extra_lines; 2864 int h; 2865 2866 if (topfrp->fr_win != NULL) 2867 { 2868 /* Simple case: just one window. */ 2869 win_new_height(topfrp->fr_win, 2870 height - topfrp->fr_win->w_status_height); 2871 } 2872 else if (topfrp->fr_layout == FR_ROW) 2873 { 2874 do 2875 { 2876 /* All frames in this row get the same new height. */ 2877 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 2878 { 2879 frame_new_height(frp, height, topfirst, wfh); 2880 if (frp->fr_height > height) 2881 { 2882 /* Could not fit the windows, make the whole row higher. */ 2883 height = frp->fr_height; 2884 break; 2885 } 2886 } 2887 } 2888 while (frp != NULL); 2889 } 2890 else /* fr_layout == FR_COL */ 2891 { 2892 /* Complicated case: Resize a column of frames. Resize the bottom 2893 * frame first, frames above that when needed. */ 2894 2895 frp = topfrp->fr_child; 2896 if (wfh) 2897 /* Advance past frames with one window with 'wfh' set. */ 2898 while (frame_fixed_height(frp)) 2899 { 2900 frp = frp->fr_next; 2901 if (frp == NULL) 2902 return; /* no frame without 'wfh', give up */ 2903 } 2904 if (!topfirst) 2905 { 2906 /* Find the bottom frame of this column */ 2907 while (frp->fr_next != NULL) 2908 frp = frp->fr_next; 2909 if (wfh) 2910 /* Advance back for frames with one window with 'wfh' set. */ 2911 while (frame_fixed_height(frp)) 2912 frp = frp->fr_prev; 2913 } 2914 2915 extra_lines = height - topfrp->fr_height; 2916 if (extra_lines < 0) 2917 { 2918 /* reduce height of contained frames, bottom or top frame first */ 2919 while (frp != NULL) 2920 { 2921 h = frame_minheight(frp, NULL); 2922 if (frp->fr_height + extra_lines < h) 2923 { 2924 extra_lines += frp->fr_height - h; 2925 frame_new_height(frp, h, topfirst, wfh); 2926 } 2927 else 2928 { 2929 frame_new_height(frp, frp->fr_height + extra_lines, 2930 topfirst, wfh); 2931 break; 2932 } 2933 if (topfirst) 2934 { 2935 do 2936 frp = frp->fr_next; 2937 while (wfh && frp != NULL && frame_fixed_height(frp)); 2938 } 2939 else 2940 { 2941 do 2942 frp = frp->fr_prev; 2943 while (wfh && frp != NULL && frame_fixed_height(frp)); 2944 } 2945 /* Increase "height" if we could not reduce enough frames. */ 2946 if (frp == NULL) 2947 height -= extra_lines; 2948 } 2949 } 2950 else if (extra_lines > 0) 2951 { 2952 /* increase height of bottom or top frame */ 2953 frame_new_height(frp, frp->fr_height + extra_lines, topfirst, wfh); 2954 } 2955 } 2956 topfrp->fr_height = height; 2957 } 2958 2959 /* 2960 * Return TRUE if height of frame "frp" should not be changed because of 2961 * the 'winfixheight' option. 2962 */ 2963 static int 2964 frame_fixed_height(frame_T *frp) 2965 { 2966 /* frame with one window: fixed height if 'winfixheight' set. */ 2967 if (frp->fr_win != NULL) 2968 return frp->fr_win->w_p_wfh; 2969 2970 if (frp->fr_layout == FR_ROW) 2971 { 2972 /* The frame is fixed height if one of the frames in the row is fixed 2973 * height. */ 2974 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2975 if (frame_fixed_height(frp)) 2976 return TRUE; 2977 return FALSE; 2978 } 2979 2980 /* frp->fr_layout == FR_COL: The frame is fixed height if all of the 2981 * frames in the row are fixed height. */ 2982 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2983 if (!frame_fixed_height(frp)) 2984 return FALSE; 2985 return TRUE; 2986 } 2987 2988 /* 2989 * Return TRUE if width of frame "frp" should not be changed because of 2990 * the 'winfixwidth' option. 2991 */ 2992 static int 2993 frame_fixed_width(frame_T *frp) 2994 { 2995 /* frame with one window: fixed width if 'winfixwidth' set. */ 2996 if (frp->fr_win != NULL) 2997 return frp->fr_win->w_p_wfw; 2998 2999 if (frp->fr_layout == FR_COL) 3000 { 3001 /* The frame is fixed width if one of the frames in the row is fixed 3002 * width. */ 3003 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 3004 if (frame_fixed_width(frp)) 3005 return TRUE; 3006 return FALSE; 3007 } 3008 3009 /* frp->fr_layout == FR_ROW: The frame is fixed width if all of the 3010 * frames in the row are fixed width. */ 3011 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 3012 if (!frame_fixed_width(frp)) 3013 return FALSE; 3014 return TRUE; 3015 } 3016 3017 /* 3018 * Add a status line to windows at the bottom of "frp". 3019 * Note: Does not check if there is room! 3020 */ 3021 static void 3022 frame_add_statusline(frame_T *frp) 3023 { 3024 win_T *wp; 3025 3026 if (frp->fr_layout == FR_LEAF) 3027 { 3028 wp = frp->fr_win; 3029 if (wp->w_status_height == 0) 3030 { 3031 if (wp->w_height > 0) /* don't make it negative */ 3032 --wp->w_height; 3033 wp->w_status_height = STATUS_HEIGHT; 3034 } 3035 } 3036 else if (frp->fr_layout == FR_ROW) 3037 { 3038 /* Handle all the frames in the row. */ 3039 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 3040 frame_add_statusline(frp); 3041 } 3042 else /* frp->fr_layout == FR_COL */ 3043 { 3044 /* Only need to handle the last frame in the column. */ 3045 for (frp = frp->fr_child; frp->fr_next != NULL; frp = frp->fr_next) 3046 ; 3047 frame_add_statusline(frp); 3048 } 3049 } 3050 3051 /* 3052 * Set width of a frame. Handles recursively going through contained frames. 3053 * May remove separator line for windows at the right side (for win_close()). 3054 */ 3055 static void 3056 frame_new_width( 3057 frame_T *topfrp, 3058 int width, 3059 int leftfirst, /* resize leftmost contained frame first */ 3060 int wfw) /* obey 'winfixwidth' when there is a choice; 3061 may cause the width not to be set */ 3062 { 3063 frame_T *frp; 3064 int extra_cols; 3065 int w; 3066 win_T *wp; 3067 3068 if (topfrp->fr_layout == FR_LEAF) 3069 { 3070 /* Simple case: just one window. */ 3071 wp = topfrp->fr_win; 3072 /* Find out if there are any windows right of this one. */ 3073 for (frp = topfrp; frp->fr_parent != NULL; frp = frp->fr_parent) 3074 if (frp->fr_parent->fr_layout == FR_ROW && frp->fr_next != NULL) 3075 break; 3076 if (frp->fr_parent == NULL) 3077 wp->w_vsep_width = 0; 3078 win_new_width(wp, width - wp->w_vsep_width); 3079 } 3080 else if (topfrp->fr_layout == FR_COL) 3081 { 3082 do 3083 { 3084 /* All frames in this column get the same new width. */ 3085 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3086 { 3087 frame_new_width(frp, width, leftfirst, wfw); 3088 if (frp->fr_width > width) 3089 { 3090 /* Could not fit the windows, make whole column wider. */ 3091 width = frp->fr_width; 3092 break; 3093 } 3094 } 3095 } while (frp != NULL); 3096 } 3097 else /* fr_layout == FR_ROW */ 3098 { 3099 /* Complicated case: Resize a row of frames. Resize the rightmost 3100 * frame first, frames left of it when needed. */ 3101 3102 frp = topfrp->fr_child; 3103 if (wfw) 3104 /* Advance past frames with one window with 'wfw' set. */ 3105 while (frame_fixed_width(frp)) 3106 { 3107 frp = frp->fr_next; 3108 if (frp == NULL) 3109 return; /* no frame without 'wfw', give up */ 3110 } 3111 if (!leftfirst) 3112 { 3113 /* Find the rightmost frame of this row */ 3114 while (frp->fr_next != NULL) 3115 frp = frp->fr_next; 3116 if (wfw) 3117 /* Advance back for frames with one window with 'wfw' set. */ 3118 while (frame_fixed_width(frp)) 3119 frp = frp->fr_prev; 3120 } 3121 3122 extra_cols = width - topfrp->fr_width; 3123 if (extra_cols < 0) 3124 { 3125 /* reduce frame width, rightmost frame first */ 3126 while (frp != NULL) 3127 { 3128 w = frame_minwidth(frp, NULL); 3129 if (frp->fr_width + extra_cols < w) 3130 { 3131 extra_cols += frp->fr_width - w; 3132 frame_new_width(frp, w, leftfirst, wfw); 3133 } 3134 else 3135 { 3136 frame_new_width(frp, frp->fr_width + extra_cols, 3137 leftfirst, wfw); 3138 break; 3139 } 3140 if (leftfirst) 3141 { 3142 do 3143 frp = frp->fr_next; 3144 while (wfw && frp != NULL && frame_fixed_width(frp)); 3145 } 3146 else 3147 { 3148 do 3149 frp = frp->fr_prev; 3150 while (wfw && frp != NULL && frame_fixed_width(frp)); 3151 } 3152 /* Increase "width" if we could not reduce enough frames. */ 3153 if (frp == NULL) 3154 width -= extra_cols; 3155 } 3156 } 3157 else if (extra_cols > 0) 3158 { 3159 /* increase width of rightmost frame */ 3160 frame_new_width(frp, frp->fr_width + extra_cols, leftfirst, wfw); 3161 } 3162 } 3163 topfrp->fr_width = width; 3164 } 3165 3166 /* 3167 * Add the vertical separator to windows at the right side of "frp". 3168 * Note: Does not check if there is room! 3169 */ 3170 static void 3171 frame_add_vsep(frame_T *frp) 3172 { 3173 win_T *wp; 3174 3175 if (frp->fr_layout == FR_LEAF) 3176 { 3177 wp = frp->fr_win; 3178 if (wp->w_vsep_width == 0) 3179 { 3180 if (wp->w_width > 0) /* don't make it negative */ 3181 --wp->w_width; 3182 wp->w_vsep_width = 1; 3183 } 3184 } 3185 else if (frp->fr_layout == FR_COL) 3186 { 3187 /* Handle all the frames in the column. */ 3188 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 3189 frame_add_vsep(frp); 3190 } 3191 else /* frp->fr_layout == FR_ROW */ 3192 { 3193 /* Only need to handle the last frame in the row. */ 3194 frp = frp->fr_child; 3195 while (frp->fr_next != NULL) 3196 frp = frp->fr_next; 3197 frame_add_vsep(frp); 3198 } 3199 } 3200 3201 /* 3202 * Set frame width from the window it contains. 3203 */ 3204 static void 3205 frame_fix_width(win_T *wp) 3206 { 3207 wp->w_frame->fr_width = wp->w_width + wp->w_vsep_width; 3208 } 3209 3210 /* 3211 * Set frame height from the window it contains. 3212 */ 3213 static void 3214 frame_fix_height(win_T *wp) 3215 { 3216 wp->w_frame->fr_height = wp->w_height + wp->w_status_height; 3217 } 3218 3219 /* 3220 * Compute the minimal height for frame "topfrp". 3221 * Uses the 'winminheight' option. 3222 * When "next_curwin" isn't NULL, use p_wh for this window. 3223 * When "next_curwin" is NOWIN, don't use at least one line for the current 3224 * window. 3225 */ 3226 static int 3227 frame_minheight(frame_T *topfrp, win_T *next_curwin) 3228 { 3229 frame_T *frp; 3230 int m; 3231 int n; 3232 3233 if (topfrp->fr_win != NULL) 3234 { 3235 if (topfrp->fr_win == next_curwin) 3236 m = p_wh + topfrp->fr_win->w_status_height; 3237 else 3238 { 3239 /* window: minimal height of the window plus status line */ 3240 m = p_wmh + topfrp->fr_win->w_status_height; 3241 /* Current window is minimal one line high */ 3242 if (p_wmh == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3243 ++m; 3244 } 3245 } 3246 else if (topfrp->fr_layout == FR_ROW) 3247 { 3248 /* get the minimal height from each frame in this row */ 3249 m = 0; 3250 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3251 { 3252 n = frame_minheight(frp, next_curwin); 3253 if (n > m) 3254 m = n; 3255 } 3256 } 3257 else 3258 { 3259 /* Add up the minimal heights for all frames in this column. */ 3260 m = 0; 3261 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3262 m += frame_minheight(frp, next_curwin); 3263 } 3264 3265 return m; 3266 } 3267 3268 /* 3269 * Compute the minimal width for frame "topfrp". 3270 * When "next_curwin" isn't NULL, use p_wiw for this window. 3271 * When "next_curwin" is NOWIN, don't use at least one column for the current 3272 * window. 3273 */ 3274 static int 3275 frame_minwidth( 3276 frame_T *topfrp, 3277 win_T *next_curwin) /* use p_wh and p_wiw for next_curwin */ 3278 { 3279 frame_T *frp; 3280 int m, n; 3281 3282 if (topfrp->fr_win != NULL) 3283 { 3284 if (topfrp->fr_win == next_curwin) 3285 m = p_wiw + topfrp->fr_win->w_vsep_width; 3286 else 3287 { 3288 /* window: minimal width of the window plus separator column */ 3289 m = p_wmw + topfrp->fr_win->w_vsep_width; 3290 /* Current window is minimal one column wide */ 3291 if (p_wmw == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3292 ++m; 3293 } 3294 } 3295 else if (topfrp->fr_layout == FR_COL) 3296 { 3297 /* get the minimal width from each frame in this column */ 3298 m = 0; 3299 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3300 { 3301 n = frame_minwidth(frp, next_curwin); 3302 if (n > m) 3303 m = n; 3304 } 3305 } 3306 else 3307 { 3308 /* Add up the minimal widths for all frames in this row. */ 3309 m = 0; 3310 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3311 m += frame_minwidth(frp, next_curwin); 3312 } 3313 3314 return m; 3315 } 3316 3317 3318 /* 3319 * Try to close all windows except current one. 3320 * Buffers in the other windows become hidden if 'hidden' is set, or '!' is 3321 * used and the buffer was modified. 3322 * 3323 * Used by ":bdel" and ":only". 3324 */ 3325 void 3326 close_others( 3327 int message, 3328 int forceit) /* always hide all other windows */ 3329 { 3330 win_T *wp; 3331 win_T *nextwp; 3332 int r; 3333 3334 if (one_window()) 3335 { 3336 if (message 3337 #ifdef FEAT_AUTOCMD 3338 && !autocmd_busy 3339 #endif 3340 ) 3341 MSG(_(m_onlyone)); 3342 return; 3343 } 3344 3345 /* Be very careful here: autocommands may change the window layout. */ 3346 for (wp = firstwin; win_valid(wp); wp = nextwp) 3347 { 3348 nextwp = wp->w_next; 3349 if (wp != curwin) /* don't close current window */ 3350 { 3351 3352 /* Check if it's allowed to abandon this window */ 3353 r = can_abandon(wp->w_buffer, forceit); 3354 #ifdef FEAT_AUTOCMD 3355 if (!win_valid(wp)) /* autocommands messed wp up */ 3356 { 3357 nextwp = firstwin; 3358 continue; 3359 } 3360 #endif 3361 if (!r) 3362 { 3363 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 3364 if (message && (p_confirm || cmdmod.confirm) && p_write) 3365 { 3366 dialog_changed(wp->w_buffer, FALSE); 3367 # ifdef FEAT_AUTOCMD 3368 if (!win_valid(wp)) /* autocommands messed wp up */ 3369 { 3370 nextwp = firstwin; 3371 continue; 3372 } 3373 # endif 3374 } 3375 if (bufIsChanged(wp->w_buffer)) 3376 #endif 3377 continue; 3378 } 3379 win_close(wp, !P_HID(wp->w_buffer) && !bufIsChanged(wp->w_buffer)); 3380 } 3381 } 3382 3383 if (message && !ONE_WINDOW) 3384 EMSG(_("E445: Other window contains changes")); 3385 } 3386 3387 #endif /* FEAT_WINDOWS */ 3388 3389 /* 3390 * Init the current window "curwin". 3391 * Called when a new file is being edited. 3392 */ 3393 void 3394 curwin_init(void) 3395 { 3396 win_init_empty(curwin); 3397 } 3398 3399 void 3400 win_init_empty(win_T *wp) 3401 { 3402 redraw_win_later(wp, NOT_VALID); 3403 wp->w_lines_valid = 0; 3404 wp->w_cursor.lnum = 1; 3405 wp->w_curswant = wp->w_cursor.col = 0; 3406 #ifdef FEAT_VIRTUALEDIT 3407 wp->w_cursor.coladd = 0; 3408 #endif 3409 wp->w_pcmark.lnum = 1; /* pcmark not cleared but set to line 1 */ 3410 wp->w_pcmark.col = 0; 3411 wp->w_prev_pcmark.lnum = 0; 3412 wp->w_prev_pcmark.col = 0; 3413 wp->w_topline = 1; 3414 #ifdef FEAT_DIFF 3415 wp->w_topfill = 0; 3416 #endif 3417 wp->w_botline = 2; 3418 #ifdef FEAT_FKMAP 3419 if (wp->w_p_rl) 3420 wp->w_farsi = W_CONV + W_R_L; 3421 else 3422 wp->w_farsi = W_CONV; 3423 #endif 3424 #ifdef FEAT_SYN_HL 3425 wp->w_s = &wp->w_buffer->b_s; 3426 #endif 3427 } 3428 3429 /* 3430 * Allocate the first window and put an empty buffer in it. 3431 * Called from main(). 3432 * Return FAIL when something goes wrong (out of memory). 3433 */ 3434 int 3435 win_alloc_first(void) 3436 { 3437 if (win_alloc_firstwin(NULL) == FAIL) 3438 return FAIL; 3439 3440 #ifdef FEAT_WINDOWS 3441 first_tabpage = alloc_tabpage(); 3442 if (first_tabpage == NULL) 3443 return FAIL; 3444 first_tabpage->tp_topframe = topframe; 3445 curtab = first_tabpage; 3446 #endif 3447 3448 return OK; 3449 } 3450 3451 #if defined(FEAT_AUTOCMD) || defined(PROTO) 3452 /* 3453 * Init "aucmd_win". This can only be done after the first 3454 * window is fully initialized, thus it can't be in win_alloc_first(). 3455 */ 3456 void 3457 win_alloc_aucmd_win(void) 3458 { 3459 aucmd_win = win_alloc(NULL, TRUE); 3460 if (aucmd_win != NULL) 3461 { 3462 win_init_some(aucmd_win, curwin); 3463 RESET_BINDING(aucmd_win); 3464 new_frame(aucmd_win); 3465 } 3466 } 3467 #endif 3468 3469 /* 3470 * Allocate the first window or the first window in a new tab page. 3471 * When "oldwin" is NULL create an empty buffer for it. 3472 * When "oldwin" is not NULL copy info from it to the new window (only with 3473 * FEAT_WINDOWS). 3474 * Return FAIL when something goes wrong (out of memory). 3475 */ 3476 static int 3477 win_alloc_firstwin(win_T *oldwin) 3478 { 3479 curwin = win_alloc(NULL, FALSE); 3480 if (oldwin == NULL) 3481 { 3482 /* Very first window, need to create an empty buffer for it and 3483 * initialize from scratch. */ 3484 curbuf = buflist_new(NULL, NULL, 1L, BLN_LISTED); 3485 if (curwin == NULL || curbuf == NULL) 3486 return FAIL; 3487 curwin->w_buffer = curbuf; 3488 #ifdef FEAT_SYN_HL 3489 curwin->w_s = &(curbuf->b_s); 3490 #endif 3491 curbuf->b_nwindows = 1; /* there is one window */ 3492 #ifdef FEAT_WINDOWS 3493 curwin->w_alist = &global_alist; 3494 #endif 3495 curwin_init(); /* init current window */ 3496 } 3497 #ifdef FEAT_WINDOWS 3498 else 3499 { 3500 /* First window in new tab page, initialize it from "oldwin". */ 3501 win_init(curwin, oldwin, 0); 3502 3503 /* We don't want cursor- and scroll-binding in the first window. */ 3504 RESET_BINDING(curwin); 3505 } 3506 #endif 3507 3508 new_frame(curwin); 3509 if (curwin->w_frame == NULL) 3510 return FAIL; 3511 topframe = curwin->w_frame; 3512 #ifdef FEAT_WINDOWS 3513 topframe->fr_width = Columns; 3514 #endif 3515 topframe->fr_height = Rows - p_ch; 3516 topframe->fr_win = curwin; 3517 3518 return OK; 3519 } 3520 3521 /* 3522 * Create a frame for window "wp". 3523 */ 3524 static void 3525 new_frame(win_T *wp) 3526 { 3527 frame_T *frp = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); 3528 3529 wp->w_frame = frp; 3530 if (frp != NULL) 3531 { 3532 frp->fr_layout = FR_LEAF; 3533 frp->fr_win = wp; 3534 } 3535 } 3536 3537 /* 3538 * Initialize the window and frame size to the maximum. 3539 */ 3540 void 3541 win_init_size(void) 3542 { 3543 firstwin->w_height = ROWS_AVAIL; 3544 topframe->fr_height = ROWS_AVAIL; 3545 #ifdef FEAT_WINDOWS 3546 firstwin->w_width = Columns; 3547 topframe->fr_width = Columns; 3548 #endif 3549 } 3550 3551 #if defined(FEAT_WINDOWS) || defined(PROTO) 3552 3553 /* 3554 * Allocate a new tabpage_T and init the values. 3555 * Returns NULL when out of memory. 3556 */ 3557 static tabpage_T * 3558 alloc_tabpage(void) 3559 { 3560 tabpage_T *tp; 3561 # ifdef FEAT_GUI 3562 int i; 3563 # endif 3564 3565 3566 tp = (tabpage_T *)alloc_clear((unsigned)sizeof(tabpage_T)); 3567 if (tp == NULL) 3568 return NULL; 3569 3570 # ifdef FEAT_EVAL 3571 /* init t: variables */ 3572 tp->tp_vars = dict_alloc(); 3573 if (tp->tp_vars == NULL) 3574 { 3575 vim_free(tp); 3576 return NULL; 3577 } 3578 init_var_dict(tp->tp_vars, &tp->tp_winvar, VAR_SCOPE); 3579 # endif 3580 3581 # ifdef FEAT_GUI 3582 for (i = 0; i < 3; i++) 3583 tp->tp_prev_which_scrollbars[i] = -1; 3584 # endif 3585 # ifdef FEAT_DIFF 3586 tp->tp_diff_invalid = TRUE; 3587 # endif 3588 tp->tp_ch_used = p_ch; 3589 3590 return tp; 3591 } 3592 3593 void 3594 free_tabpage(tabpage_T *tp) 3595 { 3596 int idx; 3597 3598 # ifdef FEAT_DIFF 3599 diff_clear(tp); 3600 # endif 3601 for (idx = 0; idx < SNAP_COUNT; ++idx) 3602 clear_snapshot(tp, idx); 3603 #ifdef FEAT_EVAL 3604 vars_clear(&tp->tp_vars->dv_hashtab); /* free all t: variables */ 3605 hash_init(&tp->tp_vars->dv_hashtab); 3606 unref_var_dict(tp->tp_vars); 3607 #endif 3608 3609 #ifdef FEAT_PYTHON 3610 python_tabpage_free(tp); 3611 #endif 3612 3613 #ifdef FEAT_PYTHON3 3614 python3_tabpage_free(tp); 3615 #endif 3616 3617 vim_free(tp); 3618 } 3619 3620 /* 3621 * Create a new Tab page with one window. 3622 * It will edit the current buffer, like after ":split". 3623 * When "after" is 0 put it just after the current Tab page. 3624 * Otherwise put it just before tab page "after". 3625 * Return FAIL or OK. 3626 */ 3627 int 3628 win_new_tabpage(int after) 3629 { 3630 tabpage_T *tp = curtab; 3631 tabpage_T *newtp; 3632 int n; 3633 3634 newtp = alloc_tabpage(); 3635 if (newtp == NULL) 3636 return FAIL; 3637 3638 /* Remember the current windows in this Tab page. */ 3639 if (leave_tabpage(curbuf, TRUE) == FAIL) 3640 { 3641 vim_free(newtp); 3642 return FAIL; 3643 } 3644 curtab = newtp; 3645 3646 /* Create a new empty window. */ 3647 if (win_alloc_firstwin(tp->tp_curwin) == OK) 3648 { 3649 /* Make the new Tab page the new topframe. */ 3650 if (after == 1) 3651 { 3652 /* New tab page becomes the first one. */ 3653 newtp->tp_next = first_tabpage; 3654 first_tabpage = newtp; 3655 } 3656 else 3657 { 3658 if (after > 0) 3659 { 3660 /* Put new tab page before tab page "after". */ 3661 n = 2; 3662 for (tp = first_tabpage; tp->tp_next != NULL 3663 && n < after; tp = tp->tp_next) 3664 ++n; 3665 } 3666 newtp->tp_next = tp->tp_next; 3667 tp->tp_next = newtp; 3668 } 3669 win_init_size(); 3670 firstwin->w_winrow = tabline_height(); 3671 win_comp_scroll(curwin); 3672 3673 newtp->tp_topframe = topframe; 3674 last_status(FALSE); 3675 3676 #if defined(FEAT_GUI) 3677 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 3678 * scrollbars. Have to update them anyway. */ 3679 gui_may_update_scrollbars(); 3680 #endif 3681 3682 redraw_all_later(CLEAR); 3683 #ifdef FEAT_AUTOCMD 3684 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 3685 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 3686 apply_autocmds(EVENT_TABNEW, NULL, NULL, FALSE, curbuf); 3687 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3688 #endif 3689 return OK; 3690 } 3691 3692 /* Failed, get back the previous Tab page */ 3693 enter_tabpage(curtab, curbuf, TRUE, TRUE); 3694 return FAIL; 3695 } 3696 3697 /* 3698 * Open a new tab page if ":tab cmd" was used. It will edit the same buffer, 3699 * like with ":split". 3700 * Returns OK if a new tab page was created, FAIL otherwise. 3701 */ 3702 int 3703 may_open_tabpage(void) 3704 { 3705 int n = (cmdmod.tab == 0) ? postponed_split_tab : cmdmod.tab; 3706 3707 if (n != 0) 3708 { 3709 cmdmod.tab = 0; /* reset it to avoid doing it twice */ 3710 postponed_split_tab = 0; 3711 return win_new_tabpage(n); 3712 } 3713 return FAIL; 3714 } 3715 3716 /* 3717 * Create up to "maxcount" tabpages with empty windows. 3718 * Returns the number of resulting tab pages. 3719 */ 3720 int 3721 make_tabpages(int maxcount) 3722 { 3723 int count = maxcount; 3724 int todo; 3725 3726 /* Limit to 'tabpagemax' tabs. */ 3727 if (count > p_tpm) 3728 count = p_tpm; 3729 3730 #ifdef FEAT_AUTOCMD 3731 /* 3732 * Don't execute autocommands while creating the tab pages. Must do that 3733 * when putting the buffers in the windows. 3734 */ 3735 block_autocmds(); 3736 #endif 3737 3738 for (todo = count - 1; todo > 0; --todo) 3739 if (win_new_tabpage(0) == FAIL) 3740 break; 3741 3742 #ifdef FEAT_AUTOCMD 3743 unblock_autocmds(); 3744 #endif 3745 3746 /* return actual number of tab pages */ 3747 return (count - todo); 3748 } 3749 3750 /* 3751 * Return TRUE when "tpc" points to a valid tab page. 3752 */ 3753 int 3754 valid_tabpage(tabpage_T *tpc) 3755 { 3756 tabpage_T *tp; 3757 3758 FOR_ALL_TABPAGES(tp) 3759 if (tp == tpc) 3760 return TRUE; 3761 return FALSE; 3762 } 3763 3764 /* 3765 * Return TRUE when "tpc" points to a valid tab page and at least one window is 3766 * valid. 3767 */ 3768 int 3769 valid_tabpage_win(tabpage_T *tpc) 3770 { 3771 tabpage_T *tp; 3772 win_T *wp; 3773 3774 FOR_ALL_TABPAGES(tp) 3775 { 3776 if (tp == tpc) 3777 { 3778 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 3779 { 3780 if (win_valid_any_tab(wp)) 3781 return TRUE; 3782 } 3783 return FALSE; 3784 } 3785 } 3786 /* shouldn't happen */ 3787 return FALSE; 3788 } 3789 3790 /* 3791 * Close tabpage "tab", assuming it has no windows in it. 3792 * There must be another tabpage or this will crash. 3793 */ 3794 void 3795 close_tabpage(tabpage_T *tab) 3796 { 3797 tabpage_T *ptp; 3798 3799 if (tab == first_tabpage) 3800 { 3801 first_tabpage = tab->tp_next; 3802 ptp = first_tabpage; 3803 } 3804 else 3805 { 3806 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tab; 3807 ptp = ptp->tp_next) 3808 ; 3809 assert(ptp != NULL); 3810 ptp->tp_next = tab->tp_next; 3811 } 3812 3813 goto_tabpage_tp(ptp, FALSE, FALSE); 3814 free_tabpage(tab); 3815 } 3816 3817 /* 3818 * Find tab page "n" (first one is 1). Returns NULL when not found. 3819 */ 3820 tabpage_T * 3821 find_tabpage(int n) 3822 { 3823 tabpage_T *tp; 3824 int i = 1; 3825 3826 for (tp = first_tabpage; tp != NULL && i != n; tp = tp->tp_next) 3827 ++i; 3828 return tp; 3829 } 3830 3831 /* 3832 * Get index of tab page "tp". First one has index 1. 3833 * When not found returns number of tab pages plus one. 3834 */ 3835 int 3836 tabpage_index(tabpage_T *ftp) 3837 { 3838 int i = 1; 3839 tabpage_T *tp; 3840 3841 for (tp = first_tabpage; tp != NULL && tp != ftp; tp = tp->tp_next) 3842 ++i; 3843 return i; 3844 } 3845 3846 /* 3847 * Prepare for leaving the current tab page. 3848 * When autocommands change "curtab" we don't leave the tab page and return 3849 * FAIL. 3850 * Careful: When OK is returned need to get a new tab page very very soon! 3851 */ 3852 static int 3853 leave_tabpage( 3854 buf_T *new_curbuf UNUSED, /* what is going to be the new curbuf, 3855 NULL if unknown */ 3856 int trigger_leave_autocmds UNUSED) 3857 { 3858 tabpage_T *tp = curtab; 3859 3860 reset_VIsual_and_resel(); /* stop Visual mode */ 3861 #ifdef FEAT_AUTOCMD 3862 if (trigger_leave_autocmds) 3863 { 3864 if (new_curbuf != curbuf) 3865 { 3866 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 3867 if (curtab != tp) 3868 return FAIL; 3869 } 3870 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 3871 if (curtab != tp) 3872 return FAIL; 3873 apply_autocmds(EVENT_TABLEAVE, NULL, NULL, FALSE, curbuf); 3874 if (curtab != tp) 3875 return FAIL; 3876 } 3877 #endif 3878 #if defined(FEAT_GUI) 3879 /* Remove the scrollbars. They may be added back later. */ 3880 if (gui.in_use) 3881 gui_remove_scrollbars(); 3882 #endif 3883 tp->tp_curwin = curwin; 3884 tp->tp_prevwin = prevwin; 3885 tp->tp_firstwin = firstwin; 3886 tp->tp_lastwin = lastwin; 3887 tp->tp_old_Rows = Rows; 3888 tp->tp_old_Columns = Columns; 3889 firstwin = NULL; 3890 lastwin = NULL; 3891 return OK; 3892 } 3893 3894 /* 3895 * Start using tab page "tp". 3896 * Only to be used after leave_tabpage() or freeing the current tab page. 3897 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 3898 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 3899 */ 3900 static void 3901 enter_tabpage( 3902 tabpage_T *tp, 3903 buf_T *old_curbuf UNUSED, 3904 int trigger_enter_autocmds, 3905 int trigger_leave_autocmds) 3906 { 3907 int old_off = tp->tp_firstwin->w_winrow; 3908 win_T *next_prevwin = tp->tp_prevwin; 3909 3910 curtab = tp; 3911 firstwin = tp->tp_firstwin; 3912 lastwin = tp->tp_lastwin; 3913 topframe = tp->tp_topframe; 3914 3915 /* We would like doing the TabEnter event first, but we don't have a 3916 * valid current window yet, which may break some commands. 3917 * This triggers autocommands, thus may make "tp" invalid. */ 3918 win_enter_ext(tp->tp_curwin, FALSE, TRUE, FALSE, 3919 trigger_enter_autocmds, trigger_leave_autocmds); 3920 prevwin = next_prevwin; 3921 3922 last_status(FALSE); /* status line may appear or disappear */ 3923 (void)win_comp_pos(); /* recompute w_winrow for all windows */ 3924 must_redraw = CLEAR; /* need to redraw everything */ 3925 #ifdef FEAT_DIFF 3926 diff_need_scrollbind = TRUE; 3927 #endif 3928 3929 /* The tabpage line may have appeared or disappeared, may need to resize 3930 * the frames for that. When the Vim window was resized need to update 3931 * frame sizes too. Use the stored value of p_ch, so that it can be 3932 * different for each tab page. */ 3933 p_ch = curtab->tp_ch_used; 3934 if (curtab->tp_old_Rows != Rows || (old_off != firstwin->w_winrow 3935 #ifdef FEAT_GUI_TABLINE 3936 && !gui_use_tabline() 3937 #endif 3938 )) 3939 shell_new_rows(); 3940 if (curtab->tp_old_Columns != Columns && starting == 0) 3941 shell_new_columns(); /* update window widths */ 3942 3943 #if defined(FEAT_GUI) 3944 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 3945 * scrollbars. Have to update them anyway. */ 3946 gui_may_update_scrollbars(); 3947 #endif 3948 3949 #ifdef FEAT_AUTOCMD 3950 /* Apply autocommands after updating the display, when 'rows' and 3951 * 'columns' have been set correctly. */ 3952 if (trigger_enter_autocmds) 3953 { 3954 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3955 if (old_curbuf != curbuf) 3956 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 3957 } 3958 #endif 3959 3960 redraw_all_later(CLEAR); 3961 } 3962 3963 /* 3964 * Go to tab page "n". For ":tab N" and "Ngt". 3965 * When "n" is 9999 go to the last tab page. 3966 */ 3967 void 3968 goto_tabpage(int n) 3969 { 3970 tabpage_T *tp; 3971 tabpage_T *ttp; 3972 int i; 3973 3974 if (text_locked()) 3975 { 3976 /* Not allowed when editing the command line. */ 3977 text_locked_msg(); 3978 return; 3979 } 3980 3981 /* If there is only one it can't work. */ 3982 if (first_tabpage->tp_next == NULL) 3983 { 3984 if (n > 1) 3985 beep_flush(); 3986 return; 3987 } 3988 3989 if (n == 0) 3990 { 3991 /* No count, go to next tab page, wrap around end. */ 3992 if (curtab->tp_next == NULL) 3993 tp = first_tabpage; 3994 else 3995 tp = curtab->tp_next; 3996 } 3997 else if (n < 0) 3998 { 3999 /* "gT": go to previous tab page, wrap around end. "N gT" repeats 4000 * this N times. */ 4001 ttp = curtab; 4002 for (i = n; i < 0; ++i) 4003 { 4004 for (tp = first_tabpage; tp->tp_next != ttp && tp->tp_next != NULL; 4005 tp = tp->tp_next) 4006 ; 4007 ttp = tp; 4008 } 4009 } 4010 else if (n == 9999) 4011 { 4012 /* Go to last tab page. */ 4013 for (tp = first_tabpage; tp->tp_next != NULL; tp = tp->tp_next) 4014 ; 4015 } 4016 else 4017 { 4018 /* Go to tab page "n". */ 4019 tp = find_tabpage(n); 4020 if (tp == NULL) 4021 { 4022 beep_flush(); 4023 return; 4024 } 4025 } 4026 4027 goto_tabpage_tp(tp, TRUE, TRUE); 4028 4029 #ifdef FEAT_GUI_TABLINE 4030 if (gui_use_tabline()) 4031 gui_mch_set_curtab(tabpage_index(curtab)); 4032 #endif 4033 } 4034 4035 /* 4036 * Go to tabpage "tp". 4037 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4038 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4039 * Note: doesn't update the GUI tab. 4040 */ 4041 void 4042 goto_tabpage_tp( 4043 tabpage_T *tp, 4044 int trigger_enter_autocmds, 4045 int trigger_leave_autocmds) 4046 { 4047 /* Don't repeat a message in another tab page. */ 4048 set_keep_msg(NULL, 0); 4049 4050 if (tp != curtab && leave_tabpage(tp->tp_curwin->w_buffer, 4051 trigger_leave_autocmds) == OK) 4052 { 4053 if (valid_tabpage(tp)) 4054 enter_tabpage(tp, curbuf, trigger_enter_autocmds, 4055 trigger_leave_autocmds); 4056 else 4057 enter_tabpage(curtab, curbuf, trigger_enter_autocmds, 4058 trigger_leave_autocmds); 4059 } 4060 } 4061 4062 /* 4063 * Enter window "wp" in tab page "tp". 4064 * Also updates the GUI tab. 4065 */ 4066 void 4067 goto_tabpage_win(tabpage_T *tp, win_T *wp) 4068 { 4069 goto_tabpage_tp(tp, TRUE, TRUE); 4070 if (curtab == tp && win_valid(wp)) 4071 { 4072 win_enter(wp, TRUE); 4073 # ifdef FEAT_GUI_TABLINE 4074 if (gui_use_tabline()) 4075 gui_mch_set_curtab(tabpage_index(curtab)); 4076 # endif 4077 } 4078 } 4079 4080 /* 4081 * Move the current tab page to after tab page "nr". 4082 */ 4083 void 4084 tabpage_move(int nr) 4085 { 4086 int n = 1; 4087 tabpage_T *tp, *tp_dst; 4088 4089 if (first_tabpage->tp_next == NULL) 4090 return; 4091 4092 for (tp = first_tabpage; tp->tp_next != NULL && n < nr; tp = tp->tp_next) 4093 ++n; 4094 4095 if (tp == curtab || (nr > 0 && tp->tp_next != NULL 4096 && tp->tp_next == curtab)) 4097 return; 4098 4099 tp_dst = tp; 4100 4101 /* Remove the current tab page from the list of tab pages. */ 4102 if (curtab == first_tabpage) 4103 first_tabpage = curtab->tp_next; 4104 else 4105 { 4106 FOR_ALL_TABPAGES(tp) 4107 if (tp->tp_next == curtab) 4108 break; 4109 if (tp == NULL) /* "cannot happen" */ 4110 return; 4111 tp->tp_next = curtab->tp_next; 4112 } 4113 4114 /* Re-insert it at the specified position. */ 4115 if (nr <= 0) 4116 { 4117 curtab->tp_next = first_tabpage; 4118 first_tabpage = curtab; 4119 } 4120 else 4121 { 4122 curtab->tp_next = tp_dst->tp_next; 4123 tp_dst->tp_next = curtab; 4124 } 4125 4126 /* Need to redraw the tabline. Tab page contents doesn't change. */ 4127 redraw_tabline = TRUE; 4128 } 4129 4130 4131 /* 4132 * Go to another window. 4133 * When jumping to another buffer, stop Visual mode. Do this before 4134 * changing windows so we can yank the selection into the '*' register. 4135 * When jumping to another window on the same buffer, adjust its cursor 4136 * position to keep the same Visual area. 4137 */ 4138 void 4139 win_goto(win_T *wp) 4140 { 4141 #ifdef FEAT_CONCEAL 4142 win_T *owp = curwin; 4143 #endif 4144 4145 if (text_locked()) 4146 { 4147 beep_flush(); 4148 text_locked_msg(); 4149 return; 4150 } 4151 #ifdef FEAT_AUTOCMD 4152 if (curbuf_locked()) 4153 return; 4154 #endif 4155 4156 if (wp->w_buffer != curbuf) 4157 reset_VIsual_and_resel(); 4158 else if (VIsual_active) 4159 wp->w_cursor = curwin->w_cursor; 4160 4161 #ifdef FEAT_GUI 4162 need_mouse_correct = TRUE; 4163 #endif 4164 win_enter(wp, TRUE); 4165 4166 #ifdef FEAT_CONCEAL 4167 /* Conceal cursor line in previous window, unconceal in current window. */ 4168 if (win_valid(owp) && owp->w_p_cole > 0 && !msg_scrolled) 4169 update_single_line(owp, owp->w_cursor.lnum); 4170 if (curwin->w_p_cole > 0 && !msg_scrolled) 4171 need_cursor_line_redraw = TRUE; 4172 #endif 4173 } 4174 4175 #if defined(FEAT_PERL) || defined(PROTO) 4176 /* 4177 * Find window number "winnr" (counting top to bottom). 4178 */ 4179 win_T * 4180 win_find_nr(int winnr) 4181 { 4182 win_T *wp; 4183 4184 # ifdef FEAT_WINDOWS 4185 FOR_ALL_WINDOWS(wp) 4186 if (--winnr == 0) 4187 break; 4188 return wp; 4189 # else 4190 return curwin; 4191 # endif 4192 } 4193 #endif 4194 4195 #if (defined(FEAT_WINDOWS) && (defined(FEAT_PYTHON) || defined(FEAT_PYTHON3))) \ 4196 || defined(PROTO) 4197 /* 4198 * Find the tabpage for window "win". 4199 */ 4200 tabpage_T * 4201 win_find_tabpage(win_T *win) 4202 { 4203 win_T *wp; 4204 tabpage_T *tp; 4205 4206 FOR_ALL_TAB_WINDOWS(tp, wp) 4207 if (wp == win) 4208 return tp; 4209 return NULL; 4210 } 4211 #endif 4212 4213 /* 4214 * Move to window above or below "count" times. 4215 */ 4216 static void 4217 win_goto_ver( 4218 int up, /* TRUE to go to win above */ 4219 long count) 4220 { 4221 frame_T *fr; 4222 frame_T *nfr; 4223 frame_T *foundfr; 4224 4225 foundfr = curwin->w_frame; 4226 while (count--) 4227 { 4228 /* 4229 * First go upwards in the tree of frames until we find a upwards or 4230 * downwards neighbor. 4231 */ 4232 fr = foundfr; 4233 for (;;) 4234 { 4235 if (fr == topframe) 4236 goto end; 4237 if (up) 4238 nfr = fr->fr_prev; 4239 else 4240 nfr = fr->fr_next; 4241 if (fr->fr_parent->fr_layout == FR_COL && nfr != NULL) 4242 break; 4243 fr = fr->fr_parent; 4244 } 4245 4246 /* 4247 * Now go downwards to find the bottom or top frame in it. 4248 */ 4249 for (;;) 4250 { 4251 if (nfr->fr_layout == FR_LEAF) 4252 { 4253 foundfr = nfr; 4254 break; 4255 } 4256 fr = nfr->fr_child; 4257 if (nfr->fr_layout == FR_ROW) 4258 { 4259 /* Find the frame at the cursor row. */ 4260 while (fr->fr_next != NULL 4261 && frame2win(fr)->w_wincol + fr->fr_width 4262 <= curwin->w_wincol + curwin->w_wcol) 4263 fr = fr->fr_next; 4264 } 4265 if (nfr->fr_layout == FR_COL && up) 4266 while (fr->fr_next != NULL) 4267 fr = fr->fr_next; 4268 nfr = fr; 4269 } 4270 } 4271 end: 4272 if (foundfr != NULL) 4273 win_goto(foundfr->fr_win); 4274 } 4275 4276 /* 4277 * Move to left or right window. 4278 */ 4279 static void 4280 win_goto_hor( 4281 int left, /* TRUE to go to left win */ 4282 long count) 4283 { 4284 frame_T *fr; 4285 frame_T *nfr; 4286 frame_T *foundfr; 4287 4288 foundfr = curwin->w_frame; 4289 while (count--) 4290 { 4291 /* 4292 * First go upwards in the tree of frames until we find a left or 4293 * right neighbor. 4294 */ 4295 fr = foundfr; 4296 for (;;) 4297 { 4298 if (fr == topframe) 4299 goto end; 4300 if (left) 4301 nfr = fr->fr_prev; 4302 else 4303 nfr = fr->fr_next; 4304 if (fr->fr_parent->fr_layout == FR_ROW && nfr != NULL) 4305 break; 4306 fr = fr->fr_parent; 4307 } 4308 4309 /* 4310 * Now go downwards to find the leftmost or rightmost frame in it. 4311 */ 4312 for (;;) 4313 { 4314 if (nfr->fr_layout == FR_LEAF) 4315 { 4316 foundfr = nfr; 4317 break; 4318 } 4319 fr = nfr->fr_child; 4320 if (nfr->fr_layout == FR_COL) 4321 { 4322 /* Find the frame at the cursor row. */ 4323 while (fr->fr_next != NULL 4324 && frame2win(fr)->w_winrow + fr->fr_height 4325 <= curwin->w_winrow + curwin->w_wrow) 4326 fr = fr->fr_next; 4327 } 4328 if (nfr->fr_layout == FR_ROW && left) 4329 while (fr->fr_next != NULL) 4330 fr = fr->fr_next; 4331 nfr = fr; 4332 } 4333 } 4334 end: 4335 if (foundfr != NULL) 4336 win_goto(foundfr->fr_win); 4337 } 4338 4339 /* 4340 * Make window "wp" the current window. 4341 */ 4342 void 4343 win_enter(win_T *wp, int undo_sync) 4344 { 4345 win_enter_ext(wp, undo_sync, FALSE, FALSE, TRUE, TRUE); 4346 } 4347 4348 /* 4349 * Make window wp the current window. 4350 * Can be called with "curwin_invalid" TRUE, which means that curwin has just 4351 * been closed and isn't valid. 4352 */ 4353 static void 4354 win_enter_ext( 4355 win_T *wp, 4356 int undo_sync, 4357 int curwin_invalid, 4358 int trigger_new_autocmds UNUSED, 4359 int trigger_enter_autocmds UNUSED, 4360 int trigger_leave_autocmds UNUSED) 4361 { 4362 #ifdef FEAT_AUTOCMD 4363 int other_buffer = FALSE; 4364 #endif 4365 4366 if (wp == curwin && !curwin_invalid) /* nothing to do */ 4367 return; 4368 4369 #ifdef FEAT_AUTOCMD 4370 if (!curwin_invalid && trigger_leave_autocmds) 4371 { 4372 /* 4373 * Be careful: If autocommands delete the window, return now. 4374 */ 4375 if (wp->w_buffer != curbuf) 4376 { 4377 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4378 other_buffer = TRUE; 4379 if (!win_valid(wp)) 4380 return; 4381 } 4382 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4383 if (!win_valid(wp)) 4384 return; 4385 # ifdef FEAT_EVAL 4386 /* autocmds may abort script processing */ 4387 if (aborting()) 4388 return; 4389 # endif 4390 } 4391 #endif 4392 4393 /* sync undo before leaving the current buffer */ 4394 if (undo_sync && curbuf != wp->w_buffer) 4395 u_sync(FALSE); 4396 4397 /* Might need to scroll the old window before switching, e.g., when the 4398 * cursor was moved. */ 4399 update_topline(); 4400 4401 /* may have to copy the buffer options when 'cpo' contains 'S' */ 4402 if (wp->w_buffer != curbuf) 4403 buf_copy_options(wp->w_buffer, BCO_ENTER | BCO_NOHELP); 4404 if (!curwin_invalid) 4405 { 4406 prevwin = curwin; /* remember for CTRL-W p */ 4407 curwin->w_redr_status = TRUE; 4408 } 4409 curwin = wp; 4410 curbuf = wp->w_buffer; 4411 check_cursor(); 4412 #ifdef FEAT_VIRTUALEDIT 4413 if (!virtual_active()) 4414 curwin->w_cursor.coladd = 0; 4415 #endif 4416 changed_line_abv_curs(); /* assume cursor position needs updating */ 4417 4418 if (curwin->w_localdir != NULL) 4419 { 4420 /* Window has a local directory: Save current directory as global 4421 * directory (unless that was done already) and change to the local 4422 * directory. */ 4423 if (globaldir == NULL) 4424 { 4425 char_u cwd[MAXPATHL]; 4426 4427 if (mch_dirname(cwd, MAXPATHL) == OK) 4428 globaldir = vim_strsave(cwd); 4429 } 4430 if (mch_chdir((char *)curwin->w_localdir) == 0) 4431 shorten_fnames(TRUE); 4432 } 4433 else if (globaldir != NULL) 4434 { 4435 /* Window doesn't have a local directory and we are not in the global 4436 * directory: Change to the global directory. */ 4437 ignored = mch_chdir((char *)globaldir); 4438 vim_free(globaldir); 4439 globaldir = NULL; 4440 shorten_fnames(TRUE); 4441 } 4442 4443 #ifdef FEAT_AUTOCMD 4444 if (trigger_new_autocmds) 4445 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 4446 if (trigger_enter_autocmds) 4447 { 4448 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 4449 if (other_buffer) 4450 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4451 } 4452 #endif 4453 4454 #ifdef FEAT_TITLE 4455 maketitle(); 4456 #endif 4457 curwin->w_redr_status = TRUE; 4458 redraw_tabline = TRUE; 4459 if (restart_edit) 4460 redraw_later(VALID); /* causes status line redraw */ 4461 4462 /* set window height to desired minimal value */ 4463 if (curwin->w_height < p_wh && !curwin->w_p_wfh) 4464 win_setheight((int)p_wh); 4465 else if (curwin->w_height == 0) 4466 win_setheight(1); 4467 4468 /* set window width to desired minimal value */ 4469 if (curwin->w_width < p_wiw && !curwin->w_p_wfw) 4470 win_setwidth((int)p_wiw); 4471 4472 #ifdef FEAT_MOUSE 4473 setmouse(); /* in case jumped to/from help buffer */ 4474 #endif 4475 4476 /* Change directories when the 'acd' option is set. */ 4477 DO_AUTOCHDIR 4478 } 4479 4480 #endif /* FEAT_WINDOWS */ 4481 4482 #if defined(FEAT_WINDOWS) || defined(FEAT_SIGNS) || defined(PROTO) 4483 /* 4484 * Jump to the first open window that contains buffer "buf", if one exists. 4485 * Returns a pointer to the window found, otherwise NULL. 4486 */ 4487 win_T * 4488 buf_jump_open_win(buf_T *buf) 4489 { 4490 win_T *wp = NULL; 4491 4492 if (curwin->w_buffer == buf) 4493 wp = curwin; 4494 # ifdef FEAT_WINDOWS 4495 else 4496 FOR_ALL_WINDOWS(wp) 4497 if (wp->w_buffer == buf) 4498 break; 4499 if (wp != NULL) 4500 win_enter(wp, FALSE); 4501 # endif 4502 return wp; 4503 } 4504 4505 /* 4506 * Jump to the first open window in any tab page that contains buffer "buf", 4507 * if one exists. 4508 * Returns a pointer to the window found, otherwise NULL. 4509 */ 4510 win_T * 4511 buf_jump_open_tab(buf_T *buf) 4512 { 4513 win_T *wp = buf_jump_open_win(buf); 4514 # ifdef FEAT_WINDOWS 4515 tabpage_T *tp; 4516 4517 if (wp != NULL) 4518 return wp; 4519 4520 FOR_ALL_TABPAGES(tp) 4521 if (tp != curtab) 4522 { 4523 for (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next) 4524 if (wp->w_buffer == buf) 4525 break; 4526 if (wp != NULL) 4527 { 4528 goto_tabpage_win(tp, wp); 4529 if (curwin != wp) 4530 wp = NULL; /* something went wrong */ 4531 break; 4532 } 4533 } 4534 # endif 4535 return wp; 4536 } 4537 #endif 4538 4539 static int last_win_id = LOWEST_WIN_ID - 1; 4540 4541 /* 4542 * Allocate a window structure and link it in the window list when "hidden" is 4543 * FALSE. 4544 */ 4545 static win_T * 4546 win_alloc(win_T *after UNUSED, int hidden UNUSED) 4547 { 4548 win_T *new_wp; 4549 4550 /* 4551 * allocate window structure and linesizes arrays 4552 */ 4553 new_wp = (win_T *)alloc_clear((unsigned)sizeof(win_T)); 4554 if (new_wp == NULL) 4555 return NULL; 4556 4557 if (win_alloc_lines(new_wp) == FAIL) 4558 { 4559 vim_free(new_wp); 4560 return NULL; 4561 } 4562 4563 new_wp->w_id = ++last_win_id; 4564 4565 #ifdef FEAT_EVAL 4566 /* init w: variables */ 4567 new_wp->w_vars = dict_alloc(); 4568 if (new_wp->w_vars == NULL) 4569 { 4570 win_free_lsize(new_wp); 4571 vim_free(new_wp); 4572 return NULL; 4573 } 4574 init_var_dict(new_wp->w_vars, &new_wp->w_winvar, VAR_SCOPE); 4575 #endif 4576 4577 #ifdef FEAT_AUTOCMD 4578 /* Don't execute autocommands while the window is not properly 4579 * initialized yet. gui_create_scrollbar() may trigger a FocusGained 4580 * event. */ 4581 block_autocmds(); 4582 #endif 4583 /* 4584 * link the window in the window list 4585 */ 4586 #ifdef FEAT_WINDOWS 4587 if (!hidden) 4588 win_append(after, new_wp); 4589 new_wp->w_wincol = 0; 4590 new_wp->w_width = Columns; 4591 #endif 4592 4593 /* position the display and the cursor at the top of the file. */ 4594 new_wp->w_topline = 1; 4595 #ifdef FEAT_DIFF 4596 new_wp->w_topfill = 0; 4597 #endif 4598 new_wp->w_botline = 2; 4599 new_wp->w_cursor.lnum = 1; 4600 #ifdef FEAT_SCROLLBIND 4601 new_wp->w_scbind_pos = 1; 4602 #endif 4603 4604 /* We won't calculate w_fraction until resizing the window */ 4605 new_wp->w_fraction = 0; 4606 new_wp->w_prev_fraction_row = -1; 4607 4608 #ifdef FEAT_GUI 4609 if (gui.in_use) 4610 { 4611 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_LEFT], 4612 SBAR_LEFT, new_wp); 4613 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_RIGHT], 4614 SBAR_RIGHT, new_wp); 4615 } 4616 #endif 4617 #ifdef FEAT_FOLDING 4618 foldInitWin(new_wp); 4619 #endif 4620 #ifdef FEAT_AUTOCMD 4621 unblock_autocmds(); 4622 #endif 4623 #ifdef FEAT_SEARCH_EXTRA 4624 new_wp->w_match_head = NULL; 4625 new_wp->w_next_match_id = 4; 4626 #endif 4627 return new_wp; 4628 } 4629 4630 #if defined(FEAT_WINDOWS) || defined(PROTO) 4631 4632 /* 4633 * Remove window 'wp' from the window list and free the structure. 4634 */ 4635 static void 4636 win_free( 4637 win_T *wp, 4638 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 4639 { 4640 int i; 4641 buf_T *buf; 4642 wininfo_T *wip; 4643 4644 #ifdef FEAT_FOLDING 4645 clearFolding(wp); 4646 #endif 4647 4648 /* reduce the reference count to the argument list. */ 4649 alist_unlink(wp->w_alist); 4650 4651 #ifdef FEAT_AUTOCMD 4652 /* Don't execute autocommands while the window is halfway being deleted. 4653 * gui_mch_destroy_scrollbar() may trigger a FocusGained event. */ 4654 block_autocmds(); 4655 #endif 4656 4657 #ifdef FEAT_LUA 4658 lua_window_free(wp); 4659 #endif 4660 4661 #ifdef FEAT_MZSCHEME 4662 mzscheme_window_free(wp); 4663 #endif 4664 4665 #ifdef FEAT_PERL 4666 perl_win_free(wp); 4667 #endif 4668 4669 #ifdef FEAT_PYTHON 4670 python_window_free(wp); 4671 #endif 4672 4673 #ifdef FEAT_PYTHON3 4674 python3_window_free(wp); 4675 #endif 4676 4677 #ifdef FEAT_TCL 4678 tcl_window_free(wp); 4679 #endif 4680 4681 #ifdef FEAT_RUBY 4682 ruby_window_free(wp); 4683 #endif 4684 4685 clear_winopt(&wp->w_onebuf_opt); 4686 clear_winopt(&wp->w_allbuf_opt); 4687 4688 #ifdef FEAT_EVAL 4689 vars_clear(&wp->w_vars->dv_hashtab); /* free all w: variables */ 4690 hash_init(&wp->w_vars->dv_hashtab); 4691 unref_var_dict(wp->w_vars); 4692 #endif 4693 4694 { 4695 tabpage_T *ttp; 4696 4697 if (prevwin == wp) 4698 prevwin = NULL; 4699 FOR_ALL_TABPAGES(ttp) 4700 if (ttp->tp_prevwin == wp) 4701 ttp->tp_prevwin = NULL; 4702 } 4703 win_free_lsize(wp); 4704 4705 for (i = 0; i < wp->w_tagstacklen; ++i) 4706 vim_free(wp->w_tagstack[i].tagname); 4707 4708 vim_free(wp->w_localdir); 4709 4710 /* Remove the window from the b_wininfo lists, it may happen that the 4711 * freed memory is re-used for another window. */ 4712 FOR_ALL_BUFFERS(buf) 4713 for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) 4714 if (wip->wi_win == wp) 4715 wip->wi_win = NULL; 4716 4717 #ifdef FEAT_SEARCH_EXTRA 4718 clear_matches(wp); 4719 #endif 4720 4721 #ifdef FEAT_JUMPLIST 4722 free_jumplist(wp); 4723 #endif 4724 4725 #ifdef FEAT_QUICKFIX 4726 qf_free_all(wp); 4727 #endif 4728 4729 #ifdef FEAT_GUI 4730 if (gui.in_use) 4731 { 4732 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_LEFT]); 4733 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_RIGHT]); 4734 } 4735 #endif /* FEAT_GUI */ 4736 4737 #ifdef FEAT_SYN_HL 4738 vim_free(wp->w_p_cc_cols); 4739 #endif 4740 4741 #ifdef FEAT_AUTOCMD 4742 if (wp != aucmd_win) 4743 #endif 4744 win_remove(wp, tp); 4745 #ifdef FEAT_AUTOCMD 4746 if (autocmd_busy) 4747 { 4748 wp->w_next = au_pending_free_win; 4749 au_pending_free_win = wp; 4750 } 4751 else 4752 #endif 4753 vim_free(wp); 4754 4755 #ifdef FEAT_AUTOCMD 4756 unblock_autocmds(); 4757 #endif 4758 } 4759 4760 /* 4761 * Append window "wp" in the window list after window "after". 4762 */ 4763 void 4764 win_append(win_T *after, win_T *wp) 4765 { 4766 win_T *before; 4767 4768 if (after == NULL) /* after NULL is in front of the first */ 4769 before = firstwin; 4770 else 4771 before = after->w_next; 4772 4773 wp->w_next = before; 4774 wp->w_prev = after; 4775 if (after == NULL) 4776 firstwin = wp; 4777 else 4778 after->w_next = wp; 4779 if (before == NULL) 4780 lastwin = wp; 4781 else 4782 before->w_prev = wp; 4783 } 4784 4785 /* 4786 * Remove a window from the window list. 4787 */ 4788 void 4789 win_remove( 4790 win_T *wp, 4791 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 4792 { 4793 if (wp->w_prev != NULL) 4794 wp->w_prev->w_next = wp->w_next; 4795 else if (tp == NULL) 4796 firstwin = wp->w_next; 4797 else 4798 tp->tp_firstwin = wp->w_next; 4799 if (wp->w_next != NULL) 4800 wp->w_next->w_prev = wp->w_prev; 4801 else if (tp == NULL) 4802 lastwin = wp->w_prev; 4803 else 4804 tp->tp_lastwin = wp->w_prev; 4805 } 4806 4807 /* 4808 * Append frame "frp" in a frame list after frame "after". 4809 */ 4810 static void 4811 frame_append(frame_T *after, frame_T *frp) 4812 { 4813 frp->fr_next = after->fr_next; 4814 after->fr_next = frp; 4815 if (frp->fr_next != NULL) 4816 frp->fr_next->fr_prev = frp; 4817 frp->fr_prev = after; 4818 } 4819 4820 /* 4821 * Insert frame "frp" in a frame list before frame "before". 4822 */ 4823 static void 4824 frame_insert(frame_T *before, frame_T *frp) 4825 { 4826 frp->fr_next = before; 4827 frp->fr_prev = before->fr_prev; 4828 before->fr_prev = frp; 4829 if (frp->fr_prev != NULL) 4830 frp->fr_prev->fr_next = frp; 4831 else 4832 frp->fr_parent->fr_child = frp; 4833 } 4834 4835 /* 4836 * Remove a frame from a frame list. 4837 */ 4838 static void 4839 frame_remove(frame_T *frp) 4840 { 4841 if (frp->fr_prev != NULL) 4842 frp->fr_prev->fr_next = frp->fr_next; 4843 else 4844 frp->fr_parent->fr_child = frp->fr_next; 4845 if (frp->fr_next != NULL) 4846 frp->fr_next->fr_prev = frp->fr_prev; 4847 } 4848 4849 #endif /* FEAT_WINDOWS */ 4850 4851 /* 4852 * Allocate w_lines[] for window "wp". 4853 * Return FAIL for failure, OK for success. 4854 */ 4855 int 4856 win_alloc_lines(win_T *wp) 4857 { 4858 wp->w_lines_valid = 0; 4859 wp->w_lines = (wline_T *)alloc_clear((unsigned)(Rows * sizeof(wline_T))); 4860 if (wp->w_lines == NULL) 4861 return FAIL; 4862 return OK; 4863 } 4864 4865 /* 4866 * free lsize arrays for a window 4867 */ 4868 void 4869 win_free_lsize(win_T *wp) 4870 { 4871 /* TODO: why would wp be NULL here? */ 4872 if (wp != NULL) 4873 { 4874 vim_free(wp->w_lines); 4875 wp->w_lines = NULL; 4876 } 4877 } 4878 4879 /* 4880 * Called from win_new_shellsize() after Rows changed. 4881 * This only does the current tab page, others must be done when made active. 4882 */ 4883 void 4884 shell_new_rows(void) 4885 { 4886 int h = (int)ROWS_AVAIL; 4887 4888 if (firstwin == NULL) /* not initialized yet */ 4889 return; 4890 #ifdef FEAT_WINDOWS 4891 if (h < frame_minheight(topframe, NULL)) 4892 h = frame_minheight(topframe, NULL); 4893 4894 /* First try setting the heights of windows with 'winfixheight'. If 4895 * that doesn't result in the right height, forget about that option. */ 4896 frame_new_height(topframe, h, FALSE, TRUE); 4897 if (!frame_check_height(topframe, h)) 4898 frame_new_height(topframe, h, FALSE, FALSE); 4899 4900 (void)win_comp_pos(); /* recompute w_winrow and w_wincol */ 4901 #else 4902 if (h < 1) 4903 h = 1; 4904 win_new_height(firstwin, h); 4905 #endif 4906 compute_cmdrow(); 4907 #ifdef FEAT_WINDOWS 4908 curtab->tp_ch_used = p_ch; 4909 #endif 4910 4911 #if 0 4912 /* Disabled: don't want making the screen smaller make a window larger. */ 4913 if (p_ea) 4914 win_equal(curwin, FALSE, 'v'); 4915 #endif 4916 } 4917 4918 #if defined(FEAT_WINDOWS) || defined(PROTO) 4919 /* 4920 * Called from win_new_shellsize() after Columns changed. 4921 */ 4922 void 4923 shell_new_columns(void) 4924 { 4925 if (firstwin == NULL) /* not initialized yet */ 4926 return; 4927 4928 /* First try setting the widths of windows with 'winfixwidth'. If that 4929 * doesn't result in the right width, forget about that option. */ 4930 frame_new_width(topframe, (int)Columns, FALSE, TRUE); 4931 if (!frame_check_width(topframe, Columns)) 4932 frame_new_width(topframe, (int)Columns, FALSE, FALSE); 4933 4934 (void)win_comp_pos(); /* recompute w_winrow and w_wincol */ 4935 #if 0 4936 /* Disabled: don't want making the screen smaller make a window larger. */ 4937 if (p_ea) 4938 win_equal(curwin, FALSE, 'h'); 4939 #endif 4940 } 4941 #endif 4942 4943 #if defined(FEAT_CMDWIN) || defined(PROTO) 4944 /* 4945 * Save the size of all windows in "gap". 4946 */ 4947 void 4948 win_size_save(garray_T *gap) 4949 4950 { 4951 win_T *wp; 4952 4953 ga_init2(gap, (int)sizeof(int), 1); 4954 if (ga_grow(gap, win_count() * 2) == OK) 4955 FOR_ALL_WINDOWS(wp) 4956 { 4957 ((int *)gap->ga_data)[gap->ga_len++] = 4958 wp->w_width + wp->w_vsep_width; 4959 ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height; 4960 } 4961 } 4962 4963 /* 4964 * Restore window sizes, but only if the number of windows is still the same. 4965 * Does not free the growarray. 4966 */ 4967 void 4968 win_size_restore(garray_T *gap) 4969 { 4970 win_T *wp; 4971 int i, j; 4972 4973 if (win_count() * 2 == gap->ga_len) 4974 { 4975 /* The order matters, because frames contain other frames, but it's 4976 * difficult to get right. The easy way out is to do it twice. */ 4977 for (j = 0; j < 2; ++j) 4978 { 4979 i = 0; 4980 FOR_ALL_WINDOWS(wp) 4981 { 4982 frame_setwidth(wp->w_frame, ((int *)gap->ga_data)[i++]); 4983 win_setheight_win(((int *)gap->ga_data)[i++], wp); 4984 } 4985 } 4986 /* recompute the window positions */ 4987 (void)win_comp_pos(); 4988 } 4989 } 4990 #endif /* FEAT_CMDWIN */ 4991 4992 #if defined(FEAT_WINDOWS) || defined(PROTO) 4993 /* 4994 * Update the position for all windows, using the width and height of the 4995 * frames. 4996 * Returns the row just after the last window. 4997 */ 4998 int 4999 win_comp_pos(void) 5000 { 5001 int row = tabline_height(); 5002 int col = 0; 5003 5004 frame_comp_pos(topframe, &row, &col); 5005 return row; 5006 } 5007 5008 /* 5009 * Update the position of the windows in frame "topfrp", using the width and 5010 * height of the frames. 5011 * "*row" and "*col" are the top-left position of the frame. They are updated 5012 * to the bottom-right position plus one. 5013 */ 5014 static void 5015 frame_comp_pos(frame_T *topfrp, int *row, int *col) 5016 { 5017 win_T *wp; 5018 frame_T *frp; 5019 int startcol; 5020 int startrow; 5021 5022 wp = topfrp->fr_win; 5023 if (wp != NULL) 5024 { 5025 if (wp->w_winrow != *row || wp->w_wincol != *col) 5026 { 5027 /* position changed, redraw */ 5028 wp->w_winrow = *row; 5029 wp->w_wincol = *col; 5030 redraw_win_later(wp, NOT_VALID); 5031 wp->w_redr_status = TRUE; 5032 } 5033 *row += wp->w_height + wp->w_status_height; 5034 *col += wp->w_width + wp->w_vsep_width; 5035 } 5036 else 5037 { 5038 startrow = *row; 5039 startcol = *col; 5040 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 5041 { 5042 if (topfrp->fr_layout == FR_ROW) 5043 *row = startrow; /* all frames are at the same row */ 5044 else 5045 *col = startcol; /* all frames are at the same col */ 5046 frame_comp_pos(frp, row, col); 5047 } 5048 } 5049 } 5050 5051 #endif /* FEAT_WINDOWS */ 5052 5053 /* 5054 * Set current window height and take care of repositioning other windows to 5055 * fit around it. 5056 */ 5057 void 5058 win_setheight(int height) 5059 { 5060 win_setheight_win(height, curwin); 5061 } 5062 5063 /* 5064 * Set the window height of window "win" and take care of repositioning other 5065 * windows to fit around it. 5066 */ 5067 void 5068 win_setheight_win(int height, win_T *win) 5069 { 5070 int row; 5071 5072 if (win == curwin) 5073 { 5074 /* Always keep current window at least one line high, even when 5075 * 'winminheight' is zero. */ 5076 #ifdef FEAT_WINDOWS 5077 if (height < p_wmh) 5078 height = p_wmh; 5079 #endif 5080 if (height == 0) 5081 height = 1; 5082 } 5083 5084 #ifdef FEAT_WINDOWS 5085 frame_setheight(win->w_frame, height + win->w_status_height); 5086 5087 /* recompute the window positions */ 5088 row = win_comp_pos(); 5089 #else 5090 if (height > topframe->fr_height) 5091 height = topframe->fr_height; 5092 win->w_height = height; 5093 row = height; 5094 #endif 5095 5096 /* 5097 * If there is extra space created between the last window and the command 5098 * line, clear it. 5099 */ 5100 if (full_screen && msg_scrolled == 0 && row < cmdline_row) 5101 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5102 cmdline_row = row; 5103 msg_row = row; 5104 msg_col = 0; 5105 5106 redraw_all_later(NOT_VALID); 5107 } 5108 5109 #if defined(FEAT_WINDOWS) || defined(PROTO) 5110 5111 /* 5112 * Set the height of a frame to "height" and take care that all frames and 5113 * windows inside it are resized. Also resize frames on the left and right if 5114 * the are in the same FR_ROW frame. 5115 * 5116 * Strategy: 5117 * If the frame is part of a FR_COL frame, try fitting the frame in that 5118 * frame. If that doesn't work (the FR_COL frame is too small), recursively 5119 * go to containing frames to resize them and make room. 5120 * If the frame is part of a FR_ROW frame, all frames must be resized as well. 5121 * Check for the minimal height of the FR_ROW frame. 5122 * At the top level we can also use change the command line height. 5123 */ 5124 static void 5125 frame_setheight(frame_T *curfrp, int height) 5126 { 5127 int room; /* total number of lines available */ 5128 int take; /* number of lines taken from other windows */ 5129 int room_cmdline; /* lines available from cmdline */ 5130 int run; 5131 frame_T *frp; 5132 int h; 5133 int room_reserved; 5134 5135 /* If the height already is the desired value, nothing to do. */ 5136 if (curfrp->fr_height == height) 5137 return; 5138 5139 if (curfrp->fr_parent == NULL) 5140 { 5141 /* topframe: can only change the command line */ 5142 if (height > ROWS_AVAIL) 5143 height = ROWS_AVAIL; 5144 if (height > 0) 5145 frame_new_height(curfrp, height, FALSE, FALSE); 5146 } 5147 else if (curfrp->fr_parent->fr_layout == FR_ROW) 5148 { 5149 /* Row of frames: Also need to resize frames left and right of this 5150 * one. First check for the minimal height of these. */ 5151 h = frame_minheight(curfrp->fr_parent, NULL); 5152 if (height < h) 5153 height = h; 5154 frame_setheight(curfrp->fr_parent, height); 5155 } 5156 else 5157 { 5158 /* 5159 * Column of frames: try to change only frames in this column. 5160 */ 5161 /* 5162 * Do this twice: 5163 * 1: compute room available, if it's not enough try resizing the 5164 * containing frame. 5165 * 2: compute the room available and adjust the height to it. 5166 * Try not to reduce the height of a window with 'winfixheight' set. 5167 */ 5168 for (run = 1; run <= 2; ++run) 5169 { 5170 room = 0; 5171 room_reserved = 0; 5172 for (frp = curfrp->fr_parent->fr_child; frp != NULL; 5173 frp = frp->fr_next) 5174 { 5175 if (frp != curfrp 5176 && frp->fr_win != NULL 5177 && frp->fr_win->w_p_wfh) 5178 room_reserved += frp->fr_height; 5179 room += frp->fr_height; 5180 if (frp != curfrp) 5181 room -= frame_minheight(frp, NULL); 5182 } 5183 if (curfrp->fr_width != Columns) 5184 room_cmdline = 0; 5185 else 5186 { 5187 room_cmdline = Rows - p_ch - (lastwin->w_winrow 5188 + lastwin->w_height + lastwin->w_status_height); 5189 if (room_cmdline < 0) 5190 room_cmdline = 0; 5191 } 5192 5193 if (height <= room + room_cmdline) 5194 break; 5195 if (run == 2 || curfrp->fr_width == Columns) 5196 { 5197 if (height > room + room_cmdline) 5198 height = room + room_cmdline; 5199 break; 5200 } 5201 frame_setheight(curfrp->fr_parent, height 5202 + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1); 5203 } 5204 5205 /* 5206 * Compute the number of lines we will take from others frames (can be 5207 * negative!). 5208 */ 5209 take = height - curfrp->fr_height; 5210 5211 /* If there is not enough room, also reduce the height of a window 5212 * with 'winfixheight' set. */ 5213 if (height > room + room_cmdline - room_reserved) 5214 room_reserved = room + room_cmdline - height; 5215 /* If there is only a 'winfixheight' window and making the 5216 * window smaller, need to make the other window taller. */ 5217 if (take < 0 && room - curfrp->fr_height < room_reserved) 5218 room_reserved = 0; 5219 5220 if (take > 0 && room_cmdline > 0) 5221 { 5222 /* use lines from cmdline first */ 5223 if (take < room_cmdline) 5224 room_cmdline = take; 5225 take -= room_cmdline; 5226 topframe->fr_height += room_cmdline; 5227 } 5228 5229 /* 5230 * set the current frame to the new height 5231 */ 5232 frame_new_height(curfrp, height, FALSE, FALSE); 5233 5234 /* 5235 * First take lines from the frames after the current frame. If 5236 * that is not enough, takes lines from frames above the current 5237 * frame. 5238 */ 5239 for (run = 0; run < 2; ++run) 5240 { 5241 if (run == 0) 5242 frp = curfrp->fr_next; /* 1st run: start with next window */ 5243 else 5244 frp = curfrp->fr_prev; /* 2nd run: start with prev window */ 5245 while (frp != NULL && take != 0) 5246 { 5247 h = frame_minheight(frp, NULL); 5248 if (room_reserved > 0 5249 && frp->fr_win != NULL 5250 && frp->fr_win->w_p_wfh) 5251 { 5252 if (room_reserved >= frp->fr_height) 5253 room_reserved -= frp->fr_height; 5254 else 5255 { 5256 if (frp->fr_height - room_reserved > take) 5257 room_reserved = frp->fr_height - take; 5258 take -= frp->fr_height - room_reserved; 5259 frame_new_height(frp, room_reserved, FALSE, FALSE); 5260 room_reserved = 0; 5261 } 5262 } 5263 else 5264 { 5265 if (frp->fr_height - take < h) 5266 { 5267 take -= frp->fr_height - h; 5268 frame_new_height(frp, h, FALSE, FALSE); 5269 } 5270 else 5271 { 5272 frame_new_height(frp, frp->fr_height - take, 5273 FALSE, FALSE); 5274 take = 0; 5275 } 5276 } 5277 if (run == 0) 5278 frp = frp->fr_next; 5279 else 5280 frp = frp->fr_prev; 5281 } 5282 } 5283 } 5284 } 5285 5286 /* 5287 * Set current window width and take care of repositioning other windows to 5288 * fit around it. 5289 */ 5290 void 5291 win_setwidth(int width) 5292 { 5293 win_setwidth_win(width, curwin); 5294 } 5295 5296 void 5297 win_setwidth_win(int width, win_T *wp) 5298 { 5299 /* Always keep current window at least one column wide, even when 5300 * 'winminwidth' is zero. */ 5301 if (wp == curwin) 5302 { 5303 if (width < p_wmw) 5304 width = p_wmw; 5305 if (width == 0) 5306 width = 1; 5307 } 5308 5309 frame_setwidth(wp->w_frame, width + wp->w_vsep_width); 5310 5311 /* recompute the window positions */ 5312 (void)win_comp_pos(); 5313 5314 redraw_all_later(NOT_VALID); 5315 } 5316 5317 /* 5318 * Set the width of a frame to "width" and take care that all frames and 5319 * windows inside it are resized. Also resize frames above and below if the 5320 * are in the same FR_ROW frame. 5321 * 5322 * Strategy is similar to frame_setheight(). 5323 */ 5324 static void 5325 frame_setwidth(frame_T *curfrp, int width) 5326 { 5327 int room; /* total number of lines available */ 5328 int take; /* number of lines taken from other windows */ 5329 int run; 5330 frame_T *frp; 5331 int w; 5332 int room_reserved; 5333 5334 /* If the width already is the desired value, nothing to do. */ 5335 if (curfrp->fr_width == width) 5336 return; 5337 5338 if (curfrp->fr_parent == NULL) 5339 /* topframe: can't change width */ 5340 return; 5341 5342 if (curfrp->fr_parent->fr_layout == FR_COL) 5343 { 5344 /* Column of frames: Also need to resize frames above and below of 5345 * this one. First check for the minimal width of these. */ 5346 w = frame_minwidth(curfrp->fr_parent, NULL); 5347 if (width < w) 5348 width = w; 5349 frame_setwidth(curfrp->fr_parent, width); 5350 } 5351 else 5352 { 5353 /* 5354 * Row of frames: try to change only frames in this row. 5355 * 5356 * Do this twice: 5357 * 1: compute room available, if it's not enough try resizing the 5358 * containing frame. 5359 * 2: compute the room available and adjust the width to it. 5360 */ 5361 for (run = 1; run <= 2; ++run) 5362 { 5363 room = 0; 5364 room_reserved = 0; 5365 for (frp = curfrp->fr_parent->fr_child; frp != NULL; 5366 frp = frp->fr_next) 5367 { 5368 if (frp != curfrp 5369 && frp->fr_win != NULL 5370 && frp->fr_win->w_p_wfw) 5371 room_reserved += frp->fr_width; 5372 room += frp->fr_width; 5373 if (frp != curfrp) 5374 room -= frame_minwidth(frp, NULL); 5375 } 5376 5377 if (width <= room) 5378 break; 5379 if (run == 2 || curfrp->fr_height >= ROWS_AVAIL) 5380 { 5381 if (width > room) 5382 width = room; 5383 break; 5384 } 5385 frame_setwidth(curfrp->fr_parent, width 5386 + frame_minwidth(curfrp->fr_parent, NOWIN) - (int)p_wmw - 1); 5387 } 5388 5389 /* 5390 * Compute the number of lines we will take from others frames (can be 5391 * negative!). 5392 */ 5393 take = width - curfrp->fr_width; 5394 5395 /* If there is not enough room, also reduce the width of a window 5396 * with 'winfixwidth' set. */ 5397 if (width > room - room_reserved) 5398 room_reserved = room - width; 5399 /* If there is only a 'winfixwidth' window and making the 5400 * window smaller, need to make the other window narrower. */ 5401 if (take < 0 && room - curfrp->fr_width < room_reserved) 5402 room_reserved = 0; 5403 5404 /* 5405 * set the current frame to the new width 5406 */ 5407 frame_new_width(curfrp, width, FALSE, FALSE); 5408 5409 /* 5410 * First take lines from the frames right of the current frame. If 5411 * that is not enough, takes lines from frames left of the current 5412 * frame. 5413 */ 5414 for (run = 0; run < 2; ++run) 5415 { 5416 if (run == 0) 5417 frp = curfrp->fr_next; /* 1st run: start with next window */ 5418 else 5419 frp = curfrp->fr_prev; /* 2nd run: start with prev window */ 5420 while (frp != NULL && take != 0) 5421 { 5422 w = frame_minwidth(frp, NULL); 5423 if (room_reserved > 0 5424 && frp->fr_win != NULL 5425 && frp->fr_win->w_p_wfw) 5426 { 5427 if (room_reserved >= frp->fr_width) 5428 room_reserved -= frp->fr_width; 5429 else 5430 { 5431 if (frp->fr_width - room_reserved > take) 5432 room_reserved = frp->fr_width - take; 5433 take -= frp->fr_width - room_reserved; 5434 frame_new_width(frp, room_reserved, FALSE, FALSE); 5435 room_reserved = 0; 5436 } 5437 } 5438 else 5439 { 5440 if (frp->fr_width - take < w) 5441 { 5442 take -= frp->fr_width - w; 5443 frame_new_width(frp, w, FALSE, FALSE); 5444 } 5445 else 5446 { 5447 frame_new_width(frp, frp->fr_width - take, 5448 FALSE, FALSE); 5449 take = 0; 5450 } 5451 } 5452 if (run == 0) 5453 frp = frp->fr_next; 5454 else 5455 frp = frp->fr_prev; 5456 } 5457 } 5458 } 5459 } 5460 5461 /* 5462 * Check 'winminheight' for a valid value. 5463 */ 5464 void 5465 win_setminheight(void) 5466 { 5467 int room; 5468 int first = TRUE; 5469 win_T *wp; 5470 5471 /* loop until there is a 'winminheight' that is possible */ 5472 while (p_wmh > 0) 5473 { 5474 /* TODO: handle vertical splits */ 5475 room = -p_wh; 5476 FOR_ALL_WINDOWS(wp) 5477 room += wp->w_height - p_wmh; 5478 if (room >= 0) 5479 break; 5480 --p_wmh; 5481 if (first) 5482 { 5483 EMSG(_(e_noroom)); 5484 first = FALSE; 5485 } 5486 } 5487 } 5488 5489 #if defined(FEAT_MOUSE) || defined(PROTO) 5490 5491 /* 5492 * Status line of dragwin is dragged "offset" lines down (negative is up). 5493 */ 5494 void 5495 win_drag_status_line(win_T *dragwin, int offset) 5496 { 5497 frame_T *curfr; 5498 frame_T *fr; 5499 int room; 5500 int row; 5501 int up; /* if TRUE, drag status line up, otherwise down */ 5502 int n; 5503 5504 fr = dragwin->w_frame; 5505 curfr = fr; 5506 if (fr != topframe) /* more than one window */ 5507 { 5508 fr = fr->fr_parent; 5509 /* When the parent frame is not a column of frames, its parent should 5510 * be. */ 5511 if (fr->fr_layout != FR_COL) 5512 { 5513 curfr = fr; 5514 if (fr != topframe) /* only a row of windows, may drag statusline */ 5515 fr = fr->fr_parent; 5516 } 5517 } 5518 5519 /* If this is the last frame in a column, may want to resize the parent 5520 * frame instead (go two up to skip a row of frames). */ 5521 while (curfr != topframe && curfr->fr_next == NULL) 5522 { 5523 if (fr != topframe) 5524 fr = fr->fr_parent; 5525 curfr = fr; 5526 if (fr != topframe) 5527 fr = fr->fr_parent; 5528 } 5529 5530 if (offset < 0) /* drag up */ 5531 { 5532 up = TRUE; 5533 offset = -offset; 5534 /* sum up the room of the current frame and above it */ 5535 if (fr == curfr) 5536 { 5537 /* only one window */ 5538 room = fr->fr_height - frame_minheight(fr, NULL); 5539 } 5540 else 5541 { 5542 room = 0; 5543 for (fr = fr->fr_child; ; fr = fr->fr_next) 5544 { 5545 room += fr->fr_height - frame_minheight(fr, NULL); 5546 if (fr == curfr) 5547 break; 5548 } 5549 } 5550 fr = curfr->fr_next; /* put fr at frame that grows */ 5551 } 5552 else /* drag down */ 5553 { 5554 up = FALSE; 5555 /* 5556 * Only dragging the last status line can reduce p_ch. 5557 */ 5558 room = Rows - cmdline_row; 5559 if (curfr->fr_next == NULL) 5560 room -= 1; 5561 else 5562 room -= p_ch; 5563 if (room < 0) 5564 room = 0; 5565 /* sum up the room of frames below of the current one */ 5566 for (fr = curfr->fr_next; fr != NULL; fr = fr->fr_next) 5567 room += fr->fr_height - frame_minheight(fr, NULL); 5568 fr = curfr; /* put fr at window that grows */ 5569 } 5570 5571 if (room < offset) /* Not enough room */ 5572 offset = room; /* Move as far as we can */ 5573 if (offset <= 0) 5574 return; 5575 5576 /* 5577 * Grow frame fr by "offset" lines. 5578 * Doesn't happen when dragging the last status line up. 5579 */ 5580 if (fr != NULL) 5581 frame_new_height(fr, fr->fr_height + offset, up, FALSE); 5582 5583 if (up) 5584 fr = curfr; /* current frame gets smaller */ 5585 else 5586 fr = curfr->fr_next; /* next frame gets smaller */ 5587 5588 /* 5589 * Now make the other frames smaller. 5590 */ 5591 while (fr != NULL && offset > 0) 5592 { 5593 n = frame_minheight(fr, NULL); 5594 if (fr->fr_height - offset <= n) 5595 { 5596 offset -= fr->fr_height - n; 5597 frame_new_height(fr, n, !up, FALSE); 5598 } 5599 else 5600 { 5601 frame_new_height(fr, fr->fr_height - offset, !up, FALSE); 5602 break; 5603 } 5604 if (up) 5605 fr = fr->fr_prev; 5606 else 5607 fr = fr->fr_next; 5608 } 5609 row = win_comp_pos(); 5610 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5611 cmdline_row = row; 5612 p_ch = Rows - cmdline_row; 5613 if (p_ch < 1) 5614 p_ch = 1; 5615 curtab->tp_ch_used = p_ch; 5616 redraw_all_later(SOME_VALID); 5617 showmode(); 5618 } 5619 5620 /* 5621 * Separator line of dragwin is dragged "offset" lines right (negative is left). 5622 */ 5623 void 5624 win_drag_vsep_line(win_T *dragwin, int offset) 5625 { 5626 frame_T *curfr; 5627 frame_T *fr; 5628 int room; 5629 int left; /* if TRUE, drag separator line left, otherwise right */ 5630 int n; 5631 5632 fr = dragwin->w_frame; 5633 if (fr == topframe) /* only one window (cannot happen?) */ 5634 return; 5635 curfr = fr; 5636 fr = fr->fr_parent; 5637 /* When the parent frame is not a row of frames, its parent should be. */ 5638 if (fr->fr_layout != FR_ROW) 5639 { 5640 if (fr == topframe) /* only a column of windows (cannot happen?) */ 5641 return; 5642 curfr = fr; 5643 fr = fr->fr_parent; 5644 } 5645 5646 /* If this is the last frame in a row, may want to resize a parent 5647 * frame instead. */ 5648 while (curfr->fr_next == NULL) 5649 { 5650 if (fr == topframe) 5651 break; 5652 curfr = fr; 5653 fr = fr->fr_parent; 5654 if (fr != topframe) 5655 { 5656 curfr = fr; 5657 fr = fr->fr_parent; 5658 } 5659 } 5660 5661 if (offset < 0) /* drag left */ 5662 { 5663 left = TRUE; 5664 offset = -offset; 5665 /* sum up the room of the current frame and left of it */ 5666 room = 0; 5667 for (fr = fr->fr_child; ; fr = fr->fr_next) 5668 { 5669 room += fr->fr_width - frame_minwidth(fr, NULL); 5670 if (fr == curfr) 5671 break; 5672 } 5673 fr = curfr->fr_next; /* put fr at frame that grows */ 5674 } 5675 else /* drag right */ 5676 { 5677 left = FALSE; 5678 /* sum up the room of frames right of the current one */ 5679 room = 0; 5680 for (fr = curfr->fr_next; fr != NULL; fr = fr->fr_next) 5681 room += fr->fr_width - frame_minwidth(fr, NULL); 5682 fr = curfr; /* put fr at window that grows */ 5683 } 5684 5685 if (room < offset) /* Not enough room */ 5686 offset = room; /* Move as far as we can */ 5687 if (offset <= 0) /* No room at all, quit. */ 5688 return; 5689 if (fr == NULL) 5690 return; /* Safety check, should not happen. */ 5691 5692 /* grow frame fr by offset lines */ 5693 frame_new_width(fr, fr->fr_width + offset, left, FALSE); 5694 5695 /* shrink other frames: current and at the left or at the right */ 5696 if (left) 5697 fr = curfr; /* current frame gets smaller */ 5698 else 5699 fr = curfr->fr_next; /* next frame gets smaller */ 5700 5701 while (fr != NULL && offset > 0) 5702 { 5703 n = frame_minwidth(fr, NULL); 5704 if (fr->fr_width - offset <= n) 5705 { 5706 offset -= fr->fr_width - n; 5707 frame_new_width(fr, n, !left, FALSE); 5708 } 5709 else 5710 { 5711 frame_new_width(fr, fr->fr_width - offset, !left, FALSE); 5712 break; 5713 } 5714 if (left) 5715 fr = fr->fr_prev; 5716 else 5717 fr = fr->fr_next; 5718 } 5719 (void)win_comp_pos(); 5720 redraw_all_later(NOT_VALID); 5721 } 5722 #endif /* FEAT_MOUSE */ 5723 5724 #endif /* FEAT_WINDOWS */ 5725 5726 #define FRACTION_MULT 16384L 5727 5728 /* 5729 * Set wp->w_fraction for the current w_wrow and w_height. 5730 */ 5731 void 5732 set_fraction(win_T *wp) 5733 { 5734 wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT 5735 + wp->w_height / 2) / (long)wp->w_height; 5736 } 5737 5738 /* 5739 * Set the height of a window. 5740 * This takes care of the things inside the window, not what happens to the 5741 * window position, the frame or to other windows. 5742 */ 5743 void 5744 win_new_height(win_T *wp, int height) 5745 { 5746 int prev_height = wp->w_height; 5747 5748 /* Don't want a negative height. Happens when splitting a tiny window. 5749 * Will equalize heights soon to fix it. */ 5750 if (height < 0) 5751 height = 0; 5752 if (wp->w_height == height) 5753 return; /* nothing to do */ 5754 5755 if (wp->w_height > 0) 5756 { 5757 if (wp == curwin) 5758 /* w_wrow needs to be valid. When setting 'laststatus' this may 5759 * call win_new_height() recursively. */ 5760 validate_cursor(); 5761 if (wp->w_height != prev_height) 5762 return; /* Recursive call already changed the size, bail out here 5763 to avoid the following to mess things up. */ 5764 if (wp->w_wrow != wp->w_prev_fraction_row) 5765 set_fraction(wp); 5766 } 5767 5768 wp->w_height = height; 5769 wp->w_skipcol = 0; 5770 5771 /* There is no point in adjusting the scroll position when exiting. Some 5772 * values might be invalid. */ 5773 if (!exiting) 5774 scroll_to_fraction(wp, prev_height); 5775 } 5776 5777 void 5778 scroll_to_fraction(win_T *wp, int prev_height) 5779 { 5780 linenr_T lnum; 5781 int sline, line_size; 5782 int height = wp->w_height; 5783 5784 /* Don't change w_topline when height is zero. Don't set w_topline when 5785 * 'scrollbind' is set and this isn't the current window. */ 5786 if (height > 0 5787 #ifdef FEAT_SCROLLBIND 5788 && (!wp->w_p_scb || wp == curwin) 5789 #endif 5790 ) 5791 { 5792 /* 5793 * Find a value for w_topline that shows the cursor at the same 5794 * relative position in the window as before (more or less). 5795 */ 5796 lnum = wp->w_cursor.lnum; 5797 if (lnum < 1) /* can happen when starting up */ 5798 lnum = 1; 5799 wp->w_wrow = ((long)wp->w_fraction * (long)height - 1L 5800 + FRACTION_MULT / 2) / FRACTION_MULT; 5801 line_size = plines_win_col(wp, lnum, (long)(wp->w_cursor.col)) - 1; 5802 sline = wp->w_wrow - line_size; 5803 5804 if (sline >= 0) 5805 { 5806 /* Make sure the whole cursor line is visible, if possible. */ 5807 int rows = plines_win(wp, lnum, FALSE); 5808 5809 if (sline > wp->w_height - rows) 5810 { 5811 sline = wp->w_height - rows; 5812 wp->w_wrow -= rows - line_size; 5813 } 5814 } 5815 5816 if (sline < 0) 5817 { 5818 /* 5819 * Cursor line would go off top of screen if w_wrow was this high. 5820 * Make cursor line the first line in the window. If not enough 5821 * room use w_skipcol; 5822 */ 5823 wp->w_wrow = line_size; 5824 if (wp->w_wrow >= wp->w_height 5825 && (W_WIDTH(wp) - win_col_off(wp)) > 0) 5826 { 5827 wp->w_skipcol += W_WIDTH(wp) - win_col_off(wp); 5828 --wp->w_wrow; 5829 while (wp->w_wrow >= wp->w_height) 5830 { 5831 wp->w_skipcol += W_WIDTH(wp) - win_col_off(wp) 5832 + win_col_off2(wp); 5833 --wp->w_wrow; 5834 } 5835 } 5836 set_topline(wp, lnum); 5837 } 5838 else if (sline > 0) 5839 { 5840 while (sline > 0 && lnum > 1) 5841 { 5842 #ifdef FEAT_FOLDING 5843 hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); 5844 if (lnum == 1) 5845 { 5846 /* first line in buffer is folded */ 5847 line_size = 1; 5848 --sline; 5849 break; 5850 } 5851 #endif 5852 --lnum; 5853 #ifdef FEAT_DIFF 5854 if (lnum == wp->w_topline) 5855 line_size = plines_win_nofill(wp, lnum, TRUE) 5856 + wp->w_topfill; 5857 else 5858 #endif 5859 line_size = plines_win(wp, lnum, TRUE); 5860 sline -= line_size; 5861 } 5862 5863 if (sline < 0) 5864 { 5865 /* 5866 * Line we want at top would go off top of screen. Use next 5867 * line instead. 5868 */ 5869 #ifdef FEAT_FOLDING 5870 hasFoldingWin(wp, lnum, NULL, &lnum, TRUE, NULL); 5871 #endif 5872 lnum++; 5873 wp->w_wrow -= line_size + sline; 5874 } 5875 else if (sline > 0) 5876 { 5877 /* First line of file reached, use that as topline. */ 5878 lnum = 1; 5879 wp->w_wrow -= sline; 5880 } 5881 5882 set_topline(wp, lnum); 5883 } 5884 } 5885 5886 if (wp == curwin) 5887 { 5888 if (p_so) 5889 update_topline(); 5890 curs_columns(FALSE); /* validate w_wrow */ 5891 } 5892 if (prev_height > 0) 5893 wp->w_prev_fraction_row = wp->w_wrow; 5894 5895 win_comp_scroll(wp); 5896 redraw_win_later(wp, SOME_VALID); 5897 #ifdef FEAT_WINDOWS 5898 wp->w_redr_status = TRUE; 5899 #endif 5900 invalidate_botline_win(wp); 5901 } 5902 5903 #ifdef FEAT_WINDOWS 5904 /* 5905 * Set the width of a window. 5906 */ 5907 void 5908 win_new_width(win_T *wp, int width) 5909 { 5910 wp->w_width = width; 5911 wp->w_lines_valid = 0; 5912 changed_line_abv_curs_win(wp); 5913 invalidate_botline_win(wp); 5914 if (wp == curwin) 5915 { 5916 update_topline(); 5917 curs_columns(TRUE); /* validate w_wrow */ 5918 } 5919 redraw_win_later(wp, NOT_VALID); 5920 wp->w_redr_status = TRUE; 5921 } 5922 #endif 5923 5924 void 5925 win_comp_scroll(win_T *wp) 5926 { 5927 wp->w_p_scr = ((unsigned)wp->w_height >> 1); 5928 if (wp->w_p_scr == 0) 5929 wp->w_p_scr = 1; 5930 } 5931 5932 /* 5933 * command_height: called whenever p_ch has been changed 5934 */ 5935 void 5936 command_height(void) 5937 { 5938 #ifdef FEAT_WINDOWS 5939 int h; 5940 frame_T *frp; 5941 int old_p_ch = curtab->tp_ch_used; 5942 5943 /* Use the value of p_ch that we remembered. This is needed for when the 5944 * GUI starts up, we can't be sure in what order things happen. And when 5945 * p_ch was changed in another tab page. */ 5946 curtab->tp_ch_used = p_ch; 5947 5948 /* Find bottom frame with width of screen. */ 5949 frp = lastwin->w_frame; 5950 while (frp->fr_width != Columns && frp->fr_parent != NULL) 5951 frp = frp->fr_parent; 5952 5953 /* Avoid changing the height of a window with 'winfixheight' set. */ 5954 while (frp->fr_prev != NULL && frp->fr_layout == FR_LEAF 5955 && frp->fr_win->w_p_wfh) 5956 frp = frp->fr_prev; 5957 5958 if (starting != NO_SCREEN) 5959 { 5960 cmdline_row = Rows - p_ch; 5961 5962 if (p_ch > old_p_ch) /* p_ch got bigger */ 5963 { 5964 while (p_ch > old_p_ch) 5965 { 5966 if (frp == NULL) 5967 { 5968 EMSG(_(e_noroom)); 5969 p_ch = old_p_ch; 5970 curtab->tp_ch_used = p_ch; 5971 cmdline_row = Rows - p_ch; 5972 break; 5973 } 5974 h = frp->fr_height - frame_minheight(frp, NULL); 5975 if (h > p_ch - old_p_ch) 5976 h = p_ch - old_p_ch; 5977 old_p_ch += h; 5978 frame_add_height(frp, -h); 5979 frp = frp->fr_prev; 5980 } 5981 5982 /* Recompute window positions. */ 5983 (void)win_comp_pos(); 5984 5985 /* clear the lines added to cmdline */ 5986 if (full_screen) 5987 screen_fill((int)(cmdline_row), (int)Rows, 0, 5988 (int)Columns, ' ', ' ', 0); 5989 msg_row = cmdline_row; 5990 redraw_cmdline = TRUE; 5991 return; 5992 } 5993 5994 if (msg_row < cmdline_row) 5995 msg_row = cmdline_row; 5996 redraw_cmdline = TRUE; 5997 } 5998 frame_add_height(frp, (int)(old_p_ch - p_ch)); 5999 6000 /* Recompute window positions. */ 6001 if (frp != lastwin->w_frame) 6002 (void)win_comp_pos(); 6003 #else 6004 cmdline_row = Rows - p_ch; 6005 win_setheight(cmdline_row); 6006 #endif 6007 } 6008 6009 #if defined(FEAT_WINDOWS) || defined(PROTO) 6010 /* 6011 * Resize frame "frp" to be "n" lines higher (negative for less high). 6012 * Also resize the frames it is contained in. 6013 */ 6014 static void 6015 frame_add_height(frame_T *frp, int n) 6016 { 6017 frame_new_height(frp, frp->fr_height + n, FALSE, FALSE); 6018 for (;;) 6019 { 6020 frp = frp->fr_parent; 6021 if (frp == NULL) 6022 break; 6023 frp->fr_height += n; 6024 } 6025 } 6026 6027 /* 6028 * Add or remove a status line for the bottom window(s), according to the 6029 * value of 'laststatus'. 6030 */ 6031 void 6032 last_status( 6033 int morewin) /* pretend there are two or more windows */ 6034 { 6035 /* Don't make a difference between horizontal or vertical split. */ 6036 last_status_rec(topframe, (p_ls == 2 6037 || (p_ls == 1 && (morewin || !ONE_WINDOW)))); 6038 } 6039 6040 static void 6041 last_status_rec(frame_T *fr, int statusline) 6042 { 6043 frame_T *fp; 6044 win_T *wp; 6045 6046 if (fr->fr_layout == FR_LEAF) 6047 { 6048 wp = fr->fr_win; 6049 if (wp->w_status_height != 0 && !statusline) 6050 { 6051 /* remove status line */ 6052 win_new_height(wp, wp->w_height + 1); 6053 wp->w_status_height = 0; 6054 comp_col(); 6055 } 6056 else if (wp->w_status_height == 0 && statusline) 6057 { 6058 /* Find a frame to take a line from. */ 6059 fp = fr; 6060 while (fp->fr_height <= frame_minheight(fp, NULL)) 6061 { 6062 if (fp == topframe) 6063 { 6064 EMSG(_(e_noroom)); 6065 return; 6066 } 6067 /* In a column of frames: go to frame above. If already at 6068 * the top or in a row of frames: go to parent. */ 6069 if (fp->fr_parent->fr_layout == FR_COL && fp->fr_prev != NULL) 6070 fp = fp->fr_prev; 6071 else 6072 fp = fp->fr_parent; 6073 } 6074 wp->w_status_height = 1; 6075 if (fp != fr) 6076 { 6077 frame_new_height(fp, fp->fr_height - 1, FALSE, FALSE); 6078 frame_fix_height(wp); 6079 (void)win_comp_pos(); 6080 } 6081 else 6082 win_new_height(wp, wp->w_height - 1); 6083 comp_col(); 6084 redraw_all_later(SOME_VALID); 6085 } 6086 } 6087 else if (fr->fr_layout == FR_ROW) 6088 { 6089 /* vertically split windows, set status line for each one */ 6090 for (fp = fr->fr_child; fp != NULL; fp = fp->fr_next) 6091 last_status_rec(fp, statusline); 6092 } 6093 else 6094 { 6095 /* horizontally split window, set status line for last one */ 6096 for (fp = fr->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 6097 ; 6098 last_status_rec(fp, statusline); 6099 } 6100 } 6101 6102 /* 6103 * Return the number of lines used by the tab page line. 6104 */ 6105 int 6106 tabline_height(void) 6107 { 6108 #ifdef FEAT_GUI_TABLINE 6109 /* When the GUI has the tabline then this always returns zero. */ 6110 if (gui_use_tabline()) 6111 return 0; 6112 #endif 6113 switch (p_stal) 6114 { 6115 case 0: return 0; 6116 case 1: return (first_tabpage->tp_next == NULL) ? 0 : 1; 6117 } 6118 return 1; 6119 } 6120 6121 #endif /* FEAT_WINDOWS */ 6122 6123 #if defined(FEAT_SEARCHPATH) || defined(PROTO) 6124 /* 6125 * Get the file name at the cursor. 6126 * If Visual mode is active, use the selected text if it's in one line. 6127 * Returns the name in allocated memory, NULL for failure. 6128 */ 6129 char_u * 6130 grab_file_name(long count, linenr_T *file_lnum) 6131 { 6132 int options = FNAME_MESS|FNAME_EXP|FNAME_REL|FNAME_UNESC; 6133 6134 if (VIsual_active) 6135 { 6136 int len; 6137 char_u *ptr; 6138 6139 if (get_visual_text(NULL, &ptr, &len) == FAIL) 6140 return NULL; 6141 return find_file_name_in_path(ptr, len, options, 6142 count, curbuf->b_ffname); 6143 } 6144 return file_name_at_cursor(options | FNAME_HYP, count, file_lnum); 6145 6146 } 6147 6148 /* 6149 * Return the file name under or after the cursor. 6150 * 6151 * The 'path' option is searched if the file name is not absolute. 6152 * The string returned has been alloc'ed and should be freed by the caller. 6153 * NULL is returned if the file name or file is not found. 6154 * 6155 * options: 6156 * FNAME_MESS give error messages 6157 * FNAME_EXP expand to path 6158 * FNAME_HYP check for hypertext link 6159 * FNAME_INCL apply "includeexpr" 6160 */ 6161 char_u * 6162 file_name_at_cursor(int options, long count, linenr_T *file_lnum) 6163 { 6164 return file_name_in_line(ml_get_curline(), 6165 curwin->w_cursor.col, options, count, curbuf->b_ffname, 6166 file_lnum); 6167 } 6168 6169 /* 6170 * Return the name of the file under or after ptr[col]. 6171 * Otherwise like file_name_at_cursor(). 6172 */ 6173 char_u * 6174 file_name_in_line( 6175 char_u *line, 6176 int col, 6177 int options, 6178 long count, 6179 char_u *rel_fname, /* file we are searching relative to */ 6180 linenr_T *file_lnum) /* line number after the file name */ 6181 { 6182 char_u *ptr; 6183 int len; 6184 6185 /* 6186 * search forward for what could be the start of a file name 6187 */ 6188 ptr = line + col; 6189 while (*ptr != NUL && !vim_isfilec(*ptr)) 6190 MB_PTR_ADV(ptr); 6191 if (*ptr == NUL) /* nothing found */ 6192 { 6193 if (options & FNAME_MESS) 6194 EMSG(_("E446: No file name under cursor")); 6195 return NULL; 6196 } 6197 6198 /* 6199 * Search backward for first char of the file name. 6200 * Go one char back to ":" before "//" even when ':' is not in 'isfname'. 6201 */ 6202 while (ptr > line) 6203 { 6204 #ifdef FEAT_MBYTE 6205 if (has_mbyte && (len = (*mb_head_off)(line, ptr - 1)) > 0) 6206 ptr -= len + 1; 6207 else 6208 #endif 6209 if (vim_isfilec(ptr[-1]) 6210 || ((options & FNAME_HYP) && path_is_url(ptr - 1))) 6211 --ptr; 6212 else 6213 break; 6214 } 6215 6216 /* 6217 * Search forward for the last char of the file name. 6218 * Also allow "://" when ':' is not in 'isfname'. 6219 */ 6220 len = 0; 6221 while (vim_isfilec(ptr[len]) || (ptr[len] == '\\' && ptr[len + 1] == ' ') 6222 || ((options & FNAME_HYP) && path_is_url(ptr + len))) 6223 { 6224 if (ptr[len] == '\\') 6225 /* Skip over the "\" in "\ ". */ 6226 ++len; 6227 #ifdef FEAT_MBYTE 6228 if (has_mbyte) 6229 len += (*mb_ptr2len)(ptr + len); 6230 else 6231 #endif 6232 ++len; 6233 } 6234 6235 /* 6236 * If there is trailing punctuation, remove it. 6237 * But don't remove "..", could be a directory name. 6238 */ 6239 if (len > 2 && vim_strchr((char_u *)".,:;!", ptr[len - 1]) != NULL 6240 && ptr[len - 2] != '.') 6241 --len; 6242 6243 if (file_lnum != NULL) 6244 { 6245 char_u *p; 6246 6247 /* Get the number after the file name and a separator character */ 6248 p = ptr + len; 6249 p = skipwhite(p); 6250 if (*p != NUL) 6251 { 6252 if (!isdigit(*p)) 6253 ++p; /* skip the separator */ 6254 p = skipwhite(p); 6255 if (isdigit(*p)) 6256 *file_lnum = (int)getdigits(&p); 6257 } 6258 } 6259 6260 return find_file_name_in_path(ptr, len, options, count, rel_fname); 6261 } 6262 6263 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6264 static char_u *eval_includeexpr(char_u *ptr, int len); 6265 6266 static char_u * 6267 eval_includeexpr(char_u *ptr, int len) 6268 { 6269 char_u *res; 6270 6271 set_vim_var_string(VV_FNAME, ptr, len); 6272 res = eval_to_string_safe(curbuf->b_p_inex, NULL, 6273 was_set_insecurely((char_u *)"includeexpr", OPT_LOCAL)); 6274 set_vim_var_string(VV_FNAME, NULL, 0); 6275 return res; 6276 } 6277 #endif 6278 6279 /* 6280 * Return the name of the file ptr[len] in 'path'. 6281 * Otherwise like file_name_at_cursor(). 6282 */ 6283 char_u * 6284 find_file_name_in_path( 6285 char_u *ptr, 6286 int len, 6287 int options, 6288 long count, 6289 char_u *rel_fname) /* file we are searching relative to */ 6290 { 6291 char_u *file_name; 6292 int c; 6293 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6294 char_u *tofree = NULL; 6295 6296 if ((options & FNAME_INCL) && *curbuf->b_p_inex != NUL) 6297 { 6298 tofree = eval_includeexpr(ptr, len); 6299 if (tofree != NULL) 6300 { 6301 ptr = tofree; 6302 len = (int)STRLEN(ptr); 6303 } 6304 } 6305 # endif 6306 6307 if (options & FNAME_EXP) 6308 { 6309 file_name = find_file_in_path(ptr, len, options & ~FNAME_MESS, 6310 TRUE, rel_fname); 6311 6312 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6313 /* 6314 * If the file could not be found in a normal way, try applying 6315 * 'includeexpr' (unless done already). 6316 */ 6317 if (file_name == NULL 6318 && !(options & FNAME_INCL) && *curbuf->b_p_inex != NUL) 6319 { 6320 tofree = eval_includeexpr(ptr, len); 6321 if (tofree != NULL) 6322 { 6323 ptr = tofree; 6324 len = (int)STRLEN(ptr); 6325 file_name = find_file_in_path(ptr, len, options & ~FNAME_MESS, 6326 TRUE, rel_fname); 6327 } 6328 } 6329 # endif 6330 if (file_name == NULL && (options & FNAME_MESS)) 6331 { 6332 c = ptr[len]; 6333 ptr[len] = NUL; 6334 EMSG2(_("E447: Can't find file \"%s\" in path"), ptr); 6335 ptr[len] = c; 6336 } 6337 6338 /* Repeat finding the file "count" times. This matters when it 6339 * appears several times in the path. */ 6340 while (file_name != NULL && --count > 0) 6341 { 6342 vim_free(file_name); 6343 file_name = find_file_in_path(ptr, len, options, FALSE, rel_fname); 6344 } 6345 } 6346 else 6347 file_name = vim_strnsave(ptr, len); 6348 6349 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6350 vim_free(tofree); 6351 # endif 6352 6353 return file_name; 6354 } 6355 #endif /* FEAT_SEARCHPATH */ 6356 6357 /* 6358 * Check if the "://" of a URL is at the pointer, return URL_SLASH. 6359 * Also check for ":\\", which MS Internet Explorer accepts, return 6360 * URL_BACKSLASH. 6361 */ 6362 static int 6363 path_is_url(char_u *p) 6364 { 6365 if (STRNCMP(p, "://", (size_t)3) == 0) 6366 return URL_SLASH; 6367 else if (STRNCMP(p, ":\\\\", (size_t)3) == 0) 6368 return URL_BACKSLASH; 6369 return 0; 6370 } 6371 6372 /* 6373 * Check if "fname" starts with "name://". Return URL_SLASH if it does. 6374 * Return URL_BACKSLASH for "name:\\". 6375 * Return zero otherwise. 6376 */ 6377 int 6378 path_with_url(char_u *fname) 6379 { 6380 char_u *p; 6381 6382 for (p = fname; isalpha(*p); ++p) 6383 ; 6384 return path_is_url(p); 6385 } 6386 6387 /* 6388 * Return TRUE if "name" is a full (absolute) path name or URL. 6389 */ 6390 int 6391 vim_isAbsName(char_u *name) 6392 { 6393 return (path_with_url(name) != 0 || mch_isFullName(name)); 6394 } 6395 6396 /* 6397 * Get absolute file name into buffer "buf[len]". 6398 * 6399 * return FAIL for failure, OK otherwise 6400 */ 6401 int 6402 vim_FullName( 6403 char_u *fname, 6404 char_u *buf, 6405 int len, 6406 int force) /* force expansion even when already absolute */ 6407 { 6408 int retval = OK; 6409 int url; 6410 6411 *buf = NUL; 6412 if (fname == NULL) 6413 return FAIL; 6414 6415 url = path_with_url(fname); 6416 if (!url) 6417 retval = mch_FullName(fname, buf, len, force); 6418 if (url || retval == FAIL) 6419 { 6420 /* something failed; use the file name (truncate when too long) */ 6421 vim_strncpy(buf, fname, len - 1); 6422 } 6423 #if defined(MACOS_CLASSIC) || defined(MSWIN) 6424 slash_adjust(buf); 6425 #endif 6426 return retval; 6427 } 6428 6429 /* 6430 * Return the minimal number of rows that is needed on the screen to display 6431 * the current number of windows. 6432 */ 6433 int 6434 min_rows(void) 6435 { 6436 int total; 6437 #ifdef FEAT_WINDOWS 6438 tabpage_T *tp; 6439 int n; 6440 #endif 6441 6442 if (firstwin == NULL) /* not initialized yet */ 6443 return MIN_LINES; 6444 6445 #ifdef FEAT_WINDOWS 6446 total = 0; 6447 FOR_ALL_TABPAGES(tp) 6448 { 6449 n = frame_minheight(tp->tp_topframe, NULL); 6450 if (total < n) 6451 total = n; 6452 } 6453 total += tabline_height(); 6454 #else 6455 total = 1; /* at least one window should have a line! */ 6456 #endif 6457 total += 1; /* count the room for the command line */ 6458 return total; 6459 } 6460 6461 /* 6462 * Return TRUE if there is only one window (in the current tab page), not 6463 * counting a help or preview window, unless it is the current window. 6464 * Does not count "aucmd_win". 6465 */ 6466 int 6467 only_one_window(void) 6468 { 6469 #ifdef FEAT_WINDOWS 6470 int count = 0; 6471 win_T *wp; 6472 6473 /* If there is another tab page there always is another window. */ 6474 if (first_tabpage->tp_next != NULL) 6475 return FALSE; 6476 6477 FOR_ALL_WINDOWS(wp) 6478 if (wp->w_buffer != NULL 6479 && (!((wp->w_buffer->b_help && !curbuf->b_help) 6480 # ifdef FEAT_QUICKFIX 6481 || wp->w_p_pvw 6482 # endif 6483 ) || wp == curwin) 6484 # ifdef FEAT_AUTOCMD 6485 && wp != aucmd_win 6486 # endif 6487 ) 6488 ++count; 6489 return (count <= 1); 6490 #else 6491 return TRUE; 6492 #endif 6493 } 6494 6495 #if defined(FEAT_WINDOWS) || defined(FEAT_AUTOCMD) || defined(PROTO) 6496 /* 6497 * Correct the cursor line number in other windows. Used after changing the 6498 * current buffer, and before applying autocommands. 6499 * When "do_curwin" is TRUE, also check current window. 6500 */ 6501 void 6502 check_lnums(int do_curwin) 6503 { 6504 win_T *wp; 6505 6506 #ifdef FEAT_WINDOWS 6507 tabpage_T *tp; 6508 6509 FOR_ALL_TAB_WINDOWS(tp, wp) 6510 if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) 6511 #else 6512 wp = curwin; 6513 if (do_curwin) 6514 #endif 6515 { 6516 if (wp->w_cursor.lnum > curbuf->b_ml.ml_line_count) 6517 wp->w_cursor.lnum = curbuf->b_ml.ml_line_count; 6518 if (wp->w_topline > curbuf->b_ml.ml_line_count) 6519 wp->w_topline = curbuf->b_ml.ml_line_count; 6520 } 6521 } 6522 #endif 6523 6524 #if defined(FEAT_WINDOWS) || defined(PROTO) 6525 6526 /* 6527 * A snapshot of the window sizes, to restore them after closing the help 6528 * window. 6529 * Only these fields are used: 6530 * fr_layout 6531 * fr_width 6532 * fr_height 6533 * fr_next 6534 * fr_child 6535 * fr_win (only valid for the old curwin, NULL otherwise) 6536 */ 6537 6538 /* 6539 * Create a snapshot of the current frame sizes. 6540 */ 6541 void 6542 make_snapshot(int idx) 6543 { 6544 clear_snapshot(curtab, idx); 6545 make_snapshot_rec(topframe, &curtab->tp_snapshot[idx]); 6546 } 6547 6548 static void 6549 make_snapshot_rec(frame_T *fr, frame_T **frp) 6550 { 6551 *frp = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); 6552 if (*frp == NULL) 6553 return; 6554 (*frp)->fr_layout = fr->fr_layout; 6555 (*frp)->fr_width = fr->fr_width; 6556 (*frp)->fr_height = fr->fr_height; 6557 if (fr->fr_next != NULL) 6558 make_snapshot_rec(fr->fr_next, &((*frp)->fr_next)); 6559 if (fr->fr_child != NULL) 6560 make_snapshot_rec(fr->fr_child, &((*frp)->fr_child)); 6561 if (fr->fr_layout == FR_LEAF && fr->fr_win == curwin) 6562 (*frp)->fr_win = curwin; 6563 } 6564 6565 /* 6566 * Remove any existing snapshot. 6567 */ 6568 static void 6569 clear_snapshot(tabpage_T *tp, int idx) 6570 { 6571 clear_snapshot_rec(tp->tp_snapshot[idx]); 6572 tp->tp_snapshot[idx] = NULL; 6573 } 6574 6575 static void 6576 clear_snapshot_rec(frame_T *fr) 6577 { 6578 if (fr != NULL) 6579 { 6580 clear_snapshot_rec(fr->fr_next); 6581 clear_snapshot_rec(fr->fr_child); 6582 vim_free(fr); 6583 } 6584 } 6585 6586 /* 6587 * Restore a previously created snapshot, if there is any. 6588 * This is only done if the screen size didn't change and the window layout is 6589 * still the same. 6590 */ 6591 void 6592 restore_snapshot( 6593 int idx, 6594 int close_curwin) /* closing current window */ 6595 { 6596 win_T *wp; 6597 6598 if (curtab->tp_snapshot[idx] != NULL 6599 && curtab->tp_snapshot[idx]->fr_width == topframe->fr_width 6600 && curtab->tp_snapshot[idx]->fr_height == topframe->fr_height 6601 && check_snapshot_rec(curtab->tp_snapshot[idx], topframe) == OK) 6602 { 6603 wp = restore_snapshot_rec(curtab->tp_snapshot[idx], topframe); 6604 win_comp_pos(); 6605 if (wp != NULL && close_curwin) 6606 win_goto(wp); 6607 redraw_all_later(CLEAR); 6608 } 6609 clear_snapshot(curtab, idx); 6610 } 6611 6612 /* 6613 * Check if frames "sn" and "fr" have the same layout, same following frames 6614 * and same children. And the window pointer is valid. 6615 */ 6616 static int 6617 check_snapshot_rec(frame_T *sn, frame_T *fr) 6618 { 6619 if (sn->fr_layout != fr->fr_layout 6620 || (sn->fr_next == NULL) != (fr->fr_next == NULL) 6621 || (sn->fr_child == NULL) != (fr->fr_child == NULL) 6622 || (sn->fr_next != NULL 6623 && check_snapshot_rec(sn->fr_next, fr->fr_next) == FAIL) 6624 || (sn->fr_child != NULL 6625 && check_snapshot_rec(sn->fr_child, fr->fr_child) == FAIL) 6626 || (sn->fr_win != NULL && !win_valid(sn->fr_win))) 6627 return FAIL; 6628 return OK; 6629 } 6630 6631 /* 6632 * Copy the size of snapshot frame "sn" to frame "fr". Do the same for all 6633 * following frames and children. 6634 * Returns a pointer to the old current window, or NULL. 6635 */ 6636 static win_T * 6637 restore_snapshot_rec(frame_T *sn, frame_T *fr) 6638 { 6639 win_T *wp = NULL; 6640 win_T *wp2; 6641 6642 fr->fr_height = sn->fr_height; 6643 fr->fr_width = sn->fr_width; 6644 if (fr->fr_layout == FR_LEAF) 6645 { 6646 frame_new_height(fr, fr->fr_height, FALSE, FALSE); 6647 frame_new_width(fr, fr->fr_width, FALSE, FALSE); 6648 wp = sn->fr_win; 6649 } 6650 if (sn->fr_next != NULL) 6651 { 6652 wp2 = restore_snapshot_rec(sn->fr_next, fr->fr_next); 6653 if (wp2 != NULL) 6654 wp = wp2; 6655 } 6656 if (sn->fr_child != NULL) 6657 { 6658 wp2 = restore_snapshot_rec(sn->fr_child, fr->fr_child); 6659 if (wp2 != NULL) 6660 wp = wp2; 6661 } 6662 return wp; 6663 } 6664 6665 #endif 6666 6667 #if defined(FEAT_EVAL) || defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) \ 6668 || defined(PROTO) 6669 /* 6670 * Set "win" to be the curwin and "tp" to be the current tab page. 6671 * restore_win() MUST be called to undo, also when FAIL is returned. 6672 * No autocommands will be executed until restore_win() is called. 6673 * When "no_display" is TRUE the display won't be affected, no redraw is 6674 * triggered, another tabpage access is limited. 6675 * Returns FAIL if switching to "win" failed. 6676 */ 6677 int 6678 switch_win( 6679 win_T **save_curwin UNUSED, 6680 tabpage_T **save_curtab UNUSED, 6681 win_T *win UNUSED, 6682 tabpage_T *tp UNUSED, 6683 int no_display UNUSED) 6684 { 6685 # ifdef FEAT_AUTOCMD 6686 block_autocmds(); 6687 # endif 6688 # ifdef FEAT_WINDOWS 6689 *save_curwin = curwin; 6690 if (tp != NULL) 6691 { 6692 *save_curtab = curtab; 6693 if (no_display) 6694 { 6695 curtab->tp_firstwin = firstwin; 6696 curtab->tp_lastwin = lastwin; 6697 curtab = tp; 6698 firstwin = curtab->tp_firstwin; 6699 lastwin = curtab->tp_lastwin; 6700 } 6701 else 6702 goto_tabpage_tp(tp, FALSE, FALSE); 6703 } 6704 if (!win_valid(win)) 6705 return FAIL; 6706 curwin = win; 6707 curbuf = curwin->w_buffer; 6708 # endif 6709 return OK; 6710 } 6711 6712 /* 6713 * Restore current tabpage and window saved by switch_win(), if still valid. 6714 * When "no_display" is TRUE the display won't be affected, no redraw is 6715 * triggered. 6716 */ 6717 void 6718 restore_win( 6719 win_T *save_curwin UNUSED, 6720 tabpage_T *save_curtab UNUSED, 6721 int no_display UNUSED) 6722 { 6723 # ifdef FEAT_WINDOWS 6724 if (save_curtab != NULL && valid_tabpage(save_curtab)) 6725 { 6726 if (no_display) 6727 { 6728 curtab->tp_firstwin = firstwin; 6729 curtab->tp_lastwin = lastwin; 6730 curtab = save_curtab; 6731 firstwin = curtab->tp_firstwin; 6732 lastwin = curtab->tp_lastwin; 6733 } 6734 else 6735 goto_tabpage_tp(save_curtab, FALSE, FALSE); 6736 } 6737 if (win_valid(save_curwin)) 6738 { 6739 curwin = save_curwin; 6740 curbuf = curwin->w_buffer; 6741 } 6742 # endif 6743 # ifdef FEAT_AUTOCMD 6744 unblock_autocmds(); 6745 # endif 6746 } 6747 6748 /* 6749 * Make "buf" the current buffer. restore_buffer() MUST be called to undo. 6750 * No autocommands will be executed. Use aucmd_prepbuf() if there are any. 6751 */ 6752 void 6753 switch_buffer(bufref_T *save_curbuf, buf_T *buf) 6754 { 6755 # ifdef FEAT_AUTOCMD 6756 block_autocmds(); 6757 # endif 6758 set_bufref(save_curbuf, curbuf); 6759 --curbuf->b_nwindows; 6760 curbuf = buf; 6761 curwin->w_buffer = buf; 6762 ++curbuf->b_nwindows; 6763 } 6764 6765 /* 6766 * Restore the current buffer after using switch_buffer(). 6767 */ 6768 void 6769 restore_buffer(bufref_T *save_curbuf) 6770 { 6771 # ifdef FEAT_AUTOCMD 6772 unblock_autocmds(); 6773 # endif 6774 /* Check for valid buffer, just in case. */ 6775 if (bufref_valid(save_curbuf)) 6776 { 6777 --curbuf->b_nwindows; 6778 curwin->w_buffer = save_curbuf->br_buf; 6779 curbuf = save_curbuf->br_buf; 6780 ++curbuf->b_nwindows; 6781 } 6782 } 6783 #endif 6784 6785 #if (defined(FEAT_GUI) && defined(FEAT_WINDOWS)) || defined(PROTO) 6786 /* 6787 * Return TRUE if there is any vertically split window. 6788 */ 6789 int 6790 win_hasvertsplit(void) 6791 { 6792 frame_T *fr; 6793 6794 if (topframe->fr_layout == FR_ROW) 6795 return TRUE; 6796 6797 if (topframe->fr_layout == FR_COL) 6798 for (fr = topframe->fr_child; fr != NULL; fr = fr->fr_next) 6799 if (fr->fr_layout == FR_ROW) 6800 return TRUE; 6801 6802 return FALSE; 6803 } 6804 #endif 6805 6806 #if defined(FEAT_SEARCH_EXTRA) || defined(PROTO) 6807 /* 6808 * Add match to the match list of window 'wp'. The pattern 'pat' will be 6809 * highlighted with the group 'grp' with priority 'prio'. 6810 * Optionally, a desired ID 'id' can be specified (greater than or equal to 1). 6811 * If no particular ID is desired, -1 must be specified for 'id'. 6812 * Return ID of added match, -1 on failure. 6813 */ 6814 int 6815 match_add( 6816 win_T *wp, 6817 char_u *grp, 6818 char_u *pat, 6819 int prio, 6820 int id, 6821 list_T *pos_list, 6822 char_u *conceal_char UNUSED) /* pointer to conceal replacement char */ 6823 { 6824 matchitem_T *cur; 6825 matchitem_T *prev; 6826 matchitem_T *m; 6827 int hlg_id; 6828 regprog_T *regprog = NULL; 6829 int rtype = SOME_VALID; 6830 6831 if (*grp == NUL || (pat != NULL && *pat == NUL)) 6832 return -1; 6833 if (id < -1 || id == 0) 6834 { 6835 EMSGN(_("E799: Invalid ID: %ld (must be greater than or equal to 1)"), id); 6836 return -1; 6837 } 6838 if (id != -1) 6839 { 6840 cur = wp->w_match_head; 6841 while (cur != NULL) 6842 { 6843 if (cur->id == id) 6844 { 6845 EMSGN(_("E801: ID already taken: %ld"), id); 6846 return -1; 6847 } 6848 cur = cur->next; 6849 } 6850 } 6851 if ((hlg_id = syn_namen2id(grp, (int)STRLEN(grp))) == 0) 6852 { 6853 EMSG2(_(e_nogroup), grp); 6854 return -1; 6855 } 6856 if (pat != NULL && (regprog = vim_regcomp(pat, RE_MAGIC)) == NULL) 6857 { 6858 EMSG2(_(e_invarg2), pat); 6859 return -1; 6860 } 6861 6862 /* Find available match ID. */ 6863 while (id == -1) 6864 { 6865 cur = wp->w_match_head; 6866 while (cur != NULL && cur->id != wp->w_next_match_id) 6867 cur = cur->next; 6868 if (cur == NULL) 6869 id = wp->w_next_match_id; 6870 wp->w_next_match_id++; 6871 } 6872 6873 /* Build new match. */ 6874 m = (matchitem_T *)alloc_clear(sizeof(matchitem_T)); 6875 m->id = id; 6876 m->priority = prio; 6877 m->pattern = pat == NULL ? NULL : vim_strsave(pat); 6878 m->hlg_id = hlg_id; 6879 m->match.regprog = regprog; 6880 m->match.rmm_ic = FALSE; 6881 m->match.rmm_maxcol = 0; 6882 # if defined(FEAT_CONCEAL) && defined(FEAT_MBYTE) 6883 m->conceal_char = 0; 6884 if (conceal_char != NULL) 6885 m->conceal_char = (*mb_ptr2char)(conceal_char); 6886 # endif 6887 6888 /* Set up position matches */ 6889 if (pos_list != NULL) 6890 { 6891 linenr_T toplnum = 0; 6892 linenr_T botlnum = 0; 6893 listitem_T *li; 6894 int i; 6895 6896 for (i = 0, li = pos_list->lv_first; li != NULL && i < MAXPOSMATCH; 6897 i++, li = li->li_next) 6898 { 6899 linenr_T lnum = 0; 6900 colnr_T col = 0; 6901 int len = 1; 6902 list_T *subl; 6903 listitem_T *subli; 6904 int error = FALSE; 6905 6906 if (li->li_tv.v_type == VAR_LIST) 6907 { 6908 subl = li->li_tv.vval.v_list; 6909 if (subl == NULL) 6910 goto fail; 6911 subli = subl->lv_first; 6912 if (subli == NULL) 6913 goto fail; 6914 lnum = get_tv_number_chk(&subli->li_tv, &error); 6915 if (error == TRUE) 6916 goto fail; 6917 if (lnum == 0) 6918 { 6919 --i; 6920 continue; 6921 } 6922 m->pos.pos[i].lnum = lnum; 6923 subli = subli->li_next; 6924 if (subli != NULL) 6925 { 6926 col = get_tv_number_chk(&subli->li_tv, &error); 6927 if (error == TRUE) 6928 goto fail; 6929 subli = subli->li_next; 6930 if (subli != NULL) 6931 { 6932 len = get_tv_number_chk(&subli->li_tv, &error); 6933 if (error == TRUE) 6934 goto fail; 6935 } 6936 } 6937 m->pos.pos[i].col = col; 6938 m->pos.pos[i].len = len; 6939 } 6940 else if (li->li_tv.v_type == VAR_NUMBER) 6941 { 6942 if (li->li_tv.vval.v_number == 0) 6943 { 6944 --i; 6945 continue; 6946 } 6947 m->pos.pos[i].lnum = li->li_tv.vval.v_number; 6948 m->pos.pos[i].col = 0; 6949 m->pos.pos[i].len = 0; 6950 } 6951 else 6952 { 6953 EMSG(_("List or number required")); 6954 goto fail; 6955 } 6956 if (toplnum == 0 || lnum < toplnum) 6957 toplnum = lnum; 6958 if (botlnum == 0 || lnum >= botlnum) 6959 botlnum = lnum + 1; 6960 } 6961 6962 /* Calculate top and bottom lines for redrawing area */ 6963 if (toplnum != 0) 6964 { 6965 if (wp->w_buffer->b_mod_set) 6966 { 6967 if (wp->w_buffer->b_mod_top > toplnum) 6968 wp->w_buffer->b_mod_top = toplnum; 6969 if (wp->w_buffer->b_mod_bot < botlnum) 6970 wp->w_buffer->b_mod_bot = botlnum; 6971 } 6972 else 6973 { 6974 wp->w_buffer->b_mod_set = TRUE; 6975 wp->w_buffer->b_mod_top = toplnum; 6976 wp->w_buffer->b_mod_bot = botlnum; 6977 wp->w_buffer->b_mod_xlines = 0; 6978 } 6979 m->pos.toplnum = toplnum; 6980 m->pos.botlnum = botlnum; 6981 rtype = VALID; 6982 } 6983 } 6984 6985 /* Insert new match. The match list is in ascending order with regard to 6986 * the match priorities. */ 6987 cur = wp->w_match_head; 6988 prev = cur; 6989 while (cur != NULL && prio >= cur->priority) 6990 { 6991 prev = cur; 6992 cur = cur->next; 6993 } 6994 if (cur == prev) 6995 wp->w_match_head = m; 6996 else 6997 prev->next = m; 6998 m->next = cur; 6999 7000 redraw_later(rtype); 7001 return id; 7002 7003 fail: 7004 vim_free(m); 7005 return -1; 7006 } 7007 7008 /* 7009 * Delete match with ID 'id' in the match list of window 'wp'. 7010 * Print error messages if 'perr' is TRUE. 7011 */ 7012 int 7013 match_delete(win_T *wp, int id, int perr) 7014 { 7015 matchitem_T *cur = wp->w_match_head; 7016 matchitem_T *prev = cur; 7017 int rtype = SOME_VALID; 7018 7019 if (id < 1) 7020 { 7021 if (perr == TRUE) 7022 EMSGN(_("E802: Invalid ID: %ld (must be greater than or equal to 1)"), 7023 id); 7024 return -1; 7025 } 7026 while (cur != NULL && cur->id != id) 7027 { 7028 prev = cur; 7029 cur = cur->next; 7030 } 7031 if (cur == NULL) 7032 { 7033 if (perr == TRUE) 7034 EMSGN(_("E803: ID not found: %ld"), id); 7035 return -1; 7036 } 7037 if (cur == prev) 7038 wp->w_match_head = cur->next; 7039 else 7040 prev->next = cur->next; 7041 vim_regfree(cur->match.regprog); 7042 vim_free(cur->pattern); 7043 if (cur->pos.toplnum != 0) 7044 { 7045 if (wp->w_buffer->b_mod_set) 7046 { 7047 if (wp->w_buffer->b_mod_top > cur->pos.toplnum) 7048 wp->w_buffer->b_mod_top = cur->pos.toplnum; 7049 if (wp->w_buffer->b_mod_bot < cur->pos.botlnum) 7050 wp->w_buffer->b_mod_bot = cur->pos.botlnum; 7051 } 7052 else 7053 { 7054 wp->w_buffer->b_mod_set = TRUE; 7055 wp->w_buffer->b_mod_top = cur->pos.toplnum; 7056 wp->w_buffer->b_mod_bot = cur->pos.botlnum; 7057 wp->w_buffer->b_mod_xlines = 0; 7058 } 7059 rtype = VALID; 7060 } 7061 vim_free(cur); 7062 redraw_later(rtype); 7063 return 0; 7064 } 7065 7066 /* 7067 * Delete all matches in the match list of window 'wp'. 7068 */ 7069 void 7070 clear_matches(win_T *wp) 7071 { 7072 matchitem_T *m; 7073 7074 while (wp->w_match_head != NULL) 7075 { 7076 m = wp->w_match_head->next; 7077 vim_regfree(wp->w_match_head->match.regprog); 7078 vim_free(wp->w_match_head->pattern); 7079 vim_free(wp->w_match_head); 7080 wp->w_match_head = m; 7081 } 7082 redraw_later(SOME_VALID); 7083 } 7084 7085 /* 7086 * Get match from ID 'id' in window 'wp'. 7087 * Return NULL if match not found. 7088 */ 7089 matchitem_T * 7090 get_match(win_T *wp, int id) 7091 { 7092 matchitem_T *cur = wp->w_match_head; 7093 7094 while (cur != NULL && cur->id != id) 7095 cur = cur->next; 7096 return cur; 7097 } 7098 #endif 7099 7100 #if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO) 7101 int 7102 get_win_number(win_T *wp, win_T *first_win) 7103 { 7104 int i = 1; 7105 win_T *w; 7106 7107 for (w = first_win; w != NULL && w != wp; w = W_NEXT(w)) 7108 ++i; 7109 7110 if (w == NULL) 7111 return 0; 7112 else 7113 return i; 7114 } 7115 7116 int 7117 get_tab_number(tabpage_T *tp UNUSED) 7118 { 7119 int i = 1; 7120 # ifdef FEAT_WINDOWS 7121 tabpage_T *t; 7122 7123 for (t = first_tabpage; t != NULL && t != tp; t = t->tp_next) 7124 ++i; 7125 7126 if (t == NULL) 7127 return 0; 7128 else 7129 # endif 7130 return i; 7131 } 7132 #endif 7133 7134 #if defined(FEAT_WINDOWS) || defined(PROTO) 7135 /* 7136 * Return TRUE if "topfrp" and its children are at the right height. 7137 */ 7138 static int 7139 frame_check_height(frame_T *topfrp, int height) 7140 { 7141 frame_T *frp; 7142 7143 if (topfrp->fr_height != height) 7144 return FALSE; 7145 7146 if (topfrp->fr_layout == FR_ROW) 7147 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 7148 if (frp->fr_height != height) 7149 return FALSE; 7150 7151 return TRUE; 7152 } 7153 #endif 7154 7155 #if defined(FEAT_WINDOWS) || defined(PROTO) 7156 /* 7157 * Return TRUE if "topfrp" and its children are at the right width. 7158 */ 7159 static int 7160 frame_check_width(frame_T *topfrp, int width) 7161 { 7162 frame_T *frp; 7163 7164 if (topfrp->fr_width != width) 7165 return FALSE; 7166 7167 if (topfrp->fr_layout == FR_COL) 7168 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 7169 if (frp->fr_width != width) 7170 return FALSE; 7171 7172 return TRUE; 7173 } 7174 #endif 7175 7176 #if defined(FEAT_EVAL) || defined(PROTO) 7177 int 7178 win_getid(typval_T *argvars) 7179 { 7180 int winnr; 7181 win_T *wp; 7182 7183 if (argvars[0].v_type == VAR_UNKNOWN) 7184 return curwin->w_id; 7185 winnr = get_tv_number(&argvars[0]); 7186 if (winnr > 0) 7187 { 7188 if (argvars[1].v_type == VAR_UNKNOWN) 7189 wp = firstwin; 7190 else 7191 { 7192 tabpage_T *tp; 7193 int tabnr = get_tv_number(&argvars[1]); 7194 7195 FOR_ALL_TABPAGES(tp) 7196 if (--tabnr == 0) 7197 break; 7198 if (tp == NULL) 7199 return -1; 7200 if (tp == curtab) 7201 wp = firstwin; 7202 else 7203 wp = tp->tp_firstwin; 7204 } 7205 for ( ; wp != NULL; wp = wp->w_next) 7206 if (--winnr == 0) 7207 return wp->w_id; 7208 } 7209 return 0; 7210 } 7211 7212 int 7213 win_gotoid(typval_T *argvars) 7214 { 7215 win_T *wp; 7216 tabpage_T *tp; 7217 int id = get_tv_number(&argvars[0]); 7218 7219 FOR_ALL_TAB_WINDOWS(tp, wp) 7220 if (wp->w_id == id) 7221 { 7222 goto_tabpage_win(tp, wp); 7223 return 1; 7224 } 7225 return 0; 7226 } 7227 7228 void 7229 win_id2tabwin(typval_T *argvars, list_T *list) 7230 { 7231 win_T *wp; 7232 tabpage_T *tp; 7233 int winnr = 1; 7234 int tabnr = 1; 7235 int id = get_tv_number(&argvars[0]); 7236 7237 FOR_ALL_TABPAGES(tp) 7238 { 7239 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 7240 { 7241 if (wp->w_id == id) 7242 { 7243 list_append_number(list, tabnr); 7244 list_append_number(list, winnr); 7245 return; 7246 } 7247 ++winnr; 7248 } 7249 ++tabnr; 7250 winnr = 1; 7251 } 7252 list_append_number(list, 0); 7253 list_append_number(list, 0); 7254 } 7255 7256 win_T * 7257 win_id2wp(typval_T *argvars) 7258 { 7259 win_T *wp; 7260 tabpage_T *tp; 7261 int id = get_tv_number(&argvars[0]); 7262 7263 FOR_ALL_TAB_WINDOWS(tp, wp) 7264 if (wp->w_id == id) 7265 return wp; 7266 7267 return NULL; 7268 } 7269 7270 int 7271 win_id2win(typval_T *argvars) 7272 { 7273 win_T *wp; 7274 int nr = 1; 7275 int id = get_tv_number(&argvars[0]); 7276 7277 FOR_ALL_WINDOWS(wp) 7278 { 7279 if (wp->w_id == id) 7280 return nr; 7281 ++nr; 7282 } 7283 return 0; 7284 } 7285 7286 void 7287 win_findbuf(typval_T *argvars, list_T *list) 7288 { 7289 win_T *wp; 7290 tabpage_T *tp; 7291 int bufnr = get_tv_number(&argvars[0]); 7292 7293 FOR_ALL_TAB_WINDOWS(tp, wp) 7294 if (wp->w_buffer->b_fnum == bufnr) 7295 list_append_number(list, wp->w_id); 7296 } 7297 7298 #endif 7299