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 frame_T *win_frame = win->w_frame->fr_parent; 2286 2287 if (last_window()) 2288 { 2289 EMSG(_("E444: Cannot close last window")); 2290 return FAIL; 2291 } 2292 2293 #ifdef FEAT_AUTOCMD 2294 if (win->w_closing || (win->w_buffer != NULL 2295 && win->w_buffer->b_locked > 0)) 2296 return FAIL; /* window is already being closed */ 2297 if (win == aucmd_win) 2298 { 2299 EMSG(_("E813: Cannot close autocmd window")); 2300 return FAIL; 2301 } 2302 if ((firstwin == aucmd_win || lastwin == aucmd_win) && one_window()) 2303 { 2304 EMSG(_("E814: Cannot close window, only autocmd window would remain")); 2305 return FAIL; 2306 } 2307 #endif 2308 2309 /* When closing the last window in a tab page first go to another tab page 2310 * and then close the window and the tab page to avoid that curwin and 2311 * curtab are invalid while we are freeing memory. */ 2312 if (close_last_window_tabpage(win, free_buf, prev_curtab)) 2313 return FAIL; 2314 2315 /* When closing the help window, try restoring a snapshot after closing 2316 * the window. Otherwise clear the snapshot, it's now invalid. */ 2317 if (bt_help(win->w_buffer)) 2318 help_window = TRUE; 2319 else 2320 clear_snapshot(curtab, SNAP_HELP_IDX); 2321 2322 #ifdef FEAT_AUTOCMD 2323 if (win == curwin) 2324 { 2325 /* 2326 * Guess which window is going to be the new current window. 2327 * This may change because of the autocommands (sigh). 2328 */ 2329 wp = frame2win(win_altframe(win, NULL)); 2330 2331 /* 2332 * Be careful: If autocommands delete the window or cause this window 2333 * to be the last one left, return now. 2334 */ 2335 if (wp->w_buffer != curbuf) 2336 { 2337 other_buffer = TRUE; 2338 win->w_closing = TRUE; 2339 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 2340 if (!win_valid(win)) 2341 return FAIL; 2342 win->w_closing = FALSE; 2343 if (last_window()) 2344 return FAIL; 2345 } 2346 win->w_closing = TRUE; 2347 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 2348 if (!win_valid(win)) 2349 return FAIL; 2350 win->w_closing = FALSE; 2351 if (last_window()) 2352 return FAIL; 2353 # ifdef FEAT_EVAL 2354 /* autocmds may abort script processing */ 2355 if (aborting()) 2356 return FAIL; 2357 # endif 2358 } 2359 #endif 2360 2361 #ifdef FEAT_GUI 2362 /* Avoid trouble with scrollbars that are going to be deleted in 2363 * win_free(). */ 2364 if (gui.in_use) 2365 out_flush(); 2366 #endif 2367 2368 #ifdef FEAT_SYN_HL 2369 /* Free independent synblock before the buffer is freed. */ 2370 if (win->w_buffer != NULL) 2371 reset_synblock(win); 2372 #endif 2373 2374 /* 2375 * Close the link to the buffer. 2376 */ 2377 if (win->w_buffer != NULL) 2378 { 2379 bufref_T bufref; 2380 2381 set_bufref(&bufref, curbuf); 2382 #ifdef FEAT_AUTOCMD 2383 win->w_closing = TRUE; 2384 #endif 2385 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, TRUE); 2386 #ifdef FEAT_AUTOCMD 2387 if (win_valid_any_tab(win)) 2388 win->w_closing = FALSE; 2389 #endif 2390 /* Make sure curbuf is valid. It can become invalid if 'bufhidden' is 2391 * "wipe". */ 2392 if (!bufref_valid(&bufref)) 2393 curbuf = firstbuf; 2394 } 2395 2396 if (only_one_window() && win_valid(win) && win->w_buffer == NULL 2397 && (last_window() || curtab != prev_curtab 2398 || close_last_window_tabpage(win, free_buf, prev_curtab))) 2399 { 2400 /* Autocommands have closed all windows, quit now. Restore 2401 * curwin->w_buffer, otherwise writing viminfo may fail. */ 2402 if (curwin->w_buffer == NULL) 2403 curwin->w_buffer = curbuf; 2404 getout(0); 2405 } 2406 2407 /* Autocommands may have moved to another tab page. */ 2408 if (curtab != prev_curtab && win_valid_any_tab(win) 2409 && win->w_buffer == NULL) 2410 { 2411 /* Need to close the window anyway, since the buffer is NULL. */ 2412 win_close_othertab(win, FALSE, prev_curtab); 2413 return FAIL; 2414 } 2415 2416 /* Autocommands may have closed the window already or closed the only 2417 * other window. */ 2418 if (!win_valid(win) || last_window() 2419 || close_last_window_tabpage(win, free_buf, prev_curtab)) 2420 return FAIL; 2421 2422 /* Free the memory used for the window and get the window that received 2423 * the screen space. */ 2424 wp = win_free_mem(win, &dir, NULL); 2425 2426 /* Make sure curwin isn't invalid. It can cause severe trouble when 2427 * printing an error message. For win_equal() curbuf needs to be valid 2428 * too. */ 2429 if (win == curwin) 2430 { 2431 curwin = wp; 2432 #ifdef FEAT_QUICKFIX 2433 if (wp->w_p_pvw || bt_quickfix(wp->w_buffer)) 2434 { 2435 /* 2436 * If the cursor goes to the preview or the quickfix window, try 2437 * finding another window to go to. 2438 */ 2439 for (;;) 2440 { 2441 if (wp->w_next == NULL) 2442 wp = firstwin; 2443 else 2444 wp = wp->w_next; 2445 if (wp == curwin) 2446 break; 2447 if (!wp->w_p_pvw && !bt_quickfix(wp->w_buffer)) 2448 { 2449 curwin = wp; 2450 break; 2451 } 2452 } 2453 } 2454 #endif 2455 curbuf = curwin->w_buffer; 2456 close_curwin = TRUE; 2457 2458 /* The cursor position may be invalid if the buffer changed after last 2459 * using the window. */ 2460 check_cursor(); 2461 } 2462 if (p_ea && (*p_ead == 'b' || *p_ead == dir)) 2463 /* If the frame of the closed window contains the new current window, 2464 * only resize that frame. Otherwise resize all windows. */ 2465 win_equal(curwin, curwin->w_frame->fr_parent == win_frame, dir); 2466 else 2467 win_comp_pos(); 2468 if (close_curwin) 2469 { 2470 win_enter_ext(wp, FALSE, TRUE, FALSE, TRUE, TRUE); 2471 #ifdef FEAT_AUTOCMD 2472 if (other_buffer) 2473 /* careful: after this wp and win may be invalid! */ 2474 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2475 #endif 2476 } 2477 2478 /* 2479 * If last window has a status line now and we don't want one, 2480 * remove the status line. 2481 */ 2482 last_status(FALSE); 2483 2484 /* After closing the help window, try restoring the window layout from 2485 * before it was opened. */ 2486 if (help_window) 2487 restore_snapshot(SNAP_HELP_IDX, close_curwin); 2488 2489 #if defined(FEAT_GUI) 2490 /* When 'guioptions' includes 'L' or 'R' may have to remove scrollbars. */ 2491 if (gui.in_use && !win_hasvertsplit()) 2492 gui_init_which_components(NULL); 2493 #endif 2494 2495 redraw_all_later(NOT_VALID); 2496 return OK; 2497 } 2498 2499 /* 2500 * Close window "win" in tab page "tp", which is not the current tab page. 2501 * This may be the last window in that tab page and result in closing the tab, 2502 * thus "tp" may become invalid! 2503 * Caller must check if buffer is hidden and whether the tabline needs to be 2504 * updated. 2505 */ 2506 void 2507 win_close_othertab(win_T *win, int free_buf, tabpage_T *tp) 2508 { 2509 win_T *wp; 2510 int dir; 2511 tabpage_T *ptp = NULL; 2512 int free_tp = FALSE; 2513 2514 #ifdef FEAT_AUTOCMD 2515 /* Get here with win->w_buffer == NULL when win_close() detects the tab 2516 * page changed. */ 2517 if (win->w_closing || (win->w_buffer != NULL 2518 && win->w_buffer->b_locked > 0)) 2519 return; /* window is already being closed */ 2520 #endif 2521 2522 if (win->w_buffer != NULL) 2523 /* Close the link to the buffer. */ 2524 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, FALSE); 2525 2526 /* Careful: Autocommands may have closed the tab page or made it the 2527 * current tab page. */ 2528 for (ptp = first_tabpage; ptp != NULL && ptp != tp; ptp = ptp->tp_next) 2529 ; 2530 if (ptp == NULL || tp == curtab) 2531 return; 2532 2533 /* Autocommands may have closed the window already. */ 2534 for (wp = tp->tp_firstwin; wp != NULL && wp != win; wp = wp->w_next) 2535 ; 2536 if (wp == NULL) 2537 return; 2538 2539 /* When closing the last window in a tab page remove the tab page. */ 2540 if (tp->tp_firstwin == tp->tp_lastwin) 2541 { 2542 if (tp == first_tabpage) 2543 first_tabpage = tp->tp_next; 2544 else 2545 { 2546 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tp; 2547 ptp = ptp->tp_next) 2548 ; 2549 if (ptp == NULL) 2550 { 2551 internal_error("win_close_othertab()"); 2552 return; 2553 } 2554 ptp->tp_next = tp->tp_next; 2555 } 2556 free_tp = TRUE; 2557 } 2558 2559 /* Free the memory used for the window. */ 2560 win_free_mem(win, &dir, tp); 2561 2562 if (free_tp) 2563 free_tabpage(tp); 2564 } 2565 2566 /* 2567 * Free the memory used for a window. 2568 * Returns a pointer to the window that got the freed up space. 2569 */ 2570 static win_T * 2571 win_free_mem( 2572 win_T *win, 2573 int *dirp, /* set to 'v' or 'h' for direction if 'ea' */ 2574 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 2575 { 2576 frame_T *frp; 2577 win_T *wp; 2578 2579 /* Remove the window and its frame from the tree of frames. */ 2580 frp = win->w_frame; 2581 wp = winframe_remove(win, dirp, tp); 2582 vim_free(frp); 2583 win_free(win, tp); 2584 2585 /* When deleting the current window of another tab page select a new 2586 * current window. */ 2587 if (tp != NULL && win == tp->tp_curwin) 2588 tp->tp_curwin = wp; 2589 2590 return wp; 2591 } 2592 2593 #if defined(EXITFREE) || defined(PROTO) 2594 void 2595 win_free_all(void) 2596 { 2597 int dummy; 2598 2599 # ifdef FEAT_WINDOWS 2600 while (first_tabpage->tp_next != NULL) 2601 tabpage_close(TRUE); 2602 # endif 2603 2604 # ifdef FEAT_AUTOCMD 2605 if (aucmd_win != NULL) 2606 { 2607 (void)win_free_mem(aucmd_win, &dummy, NULL); 2608 aucmd_win = NULL; 2609 } 2610 # endif 2611 2612 while (firstwin != NULL) 2613 (void)win_free_mem(firstwin, &dummy, NULL); 2614 2615 /* No window should be used after this. Set curwin to NULL to crash 2616 * instead of using freed memory. */ 2617 curwin = NULL; 2618 } 2619 #endif 2620 2621 /* 2622 * Remove a window and its frame from the tree of frames. 2623 * Returns a pointer to the window that got the freed up space. 2624 */ 2625 win_T * 2626 winframe_remove( 2627 win_T *win, 2628 int *dirp UNUSED, /* set to 'v' or 'h' for direction if 'ea' */ 2629 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 2630 { 2631 frame_T *frp, *frp2, *frp3; 2632 frame_T *frp_close = win->w_frame; 2633 win_T *wp; 2634 2635 /* 2636 * If there is only one window there is nothing to remove. 2637 */ 2638 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 2639 return NULL; 2640 2641 /* 2642 * Remove the window from its frame. 2643 */ 2644 frp2 = win_altframe(win, tp); 2645 wp = frame2win(frp2); 2646 2647 /* Remove this frame from the list of frames. */ 2648 frame_remove(frp_close); 2649 2650 if (frp_close->fr_parent->fr_layout == FR_COL) 2651 { 2652 /* When 'winfixheight' is set, try to find another frame in the column 2653 * (as close to the closed frame as possible) to distribute the height 2654 * to. */ 2655 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfh) 2656 { 2657 frp = frp_close->fr_prev; 2658 frp3 = frp_close->fr_next; 2659 while (frp != NULL || frp3 != NULL) 2660 { 2661 if (frp != NULL) 2662 { 2663 if (frp->fr_win != NULL && !frp->fr_win->w_p_wfh) 2664 { 2665 frp2 = frp; 2666 wp = frp->fr_win; 2667 break; 2668 } 2669 frp = frp->fr_prev; 2670 } 2671 if (frp3 != NULL) 2672 { 2673 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfh) 2674 { 2675 frp2 = frp3; 2676 wp = frp3->fr_win; 2677 break; 2678 } 2679 frp3 = frp3->fr_next; 2680 } 2681 } 2682 } 2683 frame_new_height(frp2, frp2->fr_height + frp_close->fr_height, 2684 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2685 *dirp = 'v'; 2686 } 2687 else 2688 { 2689 /* When 'winfixwidth' is set, try to find another frame in the column 2690 * (as close to the closed frame as possible) to distribute the width 2691 * to. */ 2692 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfw) 2693 { 2694 frp = frp_close->fr_prev; 2695 frp3 = frp_close->fr_next; 2696 while (frp != NULL || frp3 != NULL) 2697 { 2698 if (frp != NULL) 2699 { 2700 if (frp->fr_win != NULL && !frp->fr_win->w_p_wfw) 2701 { 2702 frp2 = frp; 2703 wp = frp->fr_win; 2704 break; 2705 } 2706 frp = frp->fr_prev; 2707 } 2708 if (frp3 != NULL) 2709 { 2710 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfw) 2711 { 2712 frp2 = frp3; 2713 wp = frp3->fr_win; 2714 break; 2715 } 2716 frp3 = frp3->fr_next; 2717 } 2718 } 2719 } 2720 frame_new_width(frp2, frp2->fr_width + frp_close->fr_width, 2721 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2722 *dirp = 'h'; 2723 } 2724 2725 /* If rows/columns go to a window below/right its positions need to be 2726 * updated. Can only be done after the sizes have been updated. */ 2727 if (frp2 == frp_close->fr_next) 2728 { 2729 int row = win->w_winrow; 2730 int col = W_WINCOL(win); 2731 2732 frame_comp_pos(frp2, &row, &col); 2733 } 2734 2735 if (frp2->fr_next == NULL && frp2->fr_prev == NULL) 2736 { 2737 /* There is no other frame in this list, move its info to the parent 2738 * and remove it. */ 2739 frp2->fr_parent->fr_layout = frp2->fr_layout; 2740 frp2->fr_parent->fr_child = frp2->fr_child; 2741 for (frp = frp2->fr_child; frp != NULL; frp = frp->fr_next) 2742 frp->fr_parent = frp2->fr_parent; 2743 frp2->fr_parent->fr_win = frp2->fr_win; 2744 if (frp2->fr_win != NULL) 2745 frp2->fr_win->w_frame = frp2->fr_parent; 2746 frp = frp2->fr_parent; 2747 vim_free(frp2); 2748 2749 frp2 = frp->fr_parent; 2750 if (frp2 != NULL && frp2->fr_layout == frp->fr_layout) 2751 { 2752 /* The frame above the parent has the same layout, have to merge 2753 * the frames into this list. */ 2754 if (frp2->fr_child == frp) 2755 frp2->fr_child = frp->fr_child; 2756 frp->fr_child->fr_prev = frp->fr_prev; 2757 if (frp->fr_prev != NULL) 2758 frp->fr_prev->fr_next = frp->fr_child; 2759 for (frp3 = frp->fr_child; ; frp3 = frp3->fr_next) 2760 { 2761 frp3->fr_parent = frp2; 2762 if (frp3->fr_next == NULL) 2763 { 2764 frp3->fr_next = frp->fr_next; 2765 if (frp->fr_next != NULL) 2766 frp->fr_next->fr_prev = frp3; 2767 break; 2768 } 2769 } 2770 vim_free(frp); 2771 } 2772 } 2773 2774 return wp; 2775 } 2776 2777 /* 2778 * Find out which frame is going to get the freed up space when "win" is 2779 * closed. 2780 * if 'splitbelow'/'splitleft' the space goes to the window above/left. 2781 * if 'nosplitbelow'/'nosplitleft' the space goes to the window below/right. 2782 * This makes opening a window and closing it immediately keep the same window 2783 * layout. 2784 */ 2785 static frame_T * 2786 win_altframe( 2787 win_T *win, 2788 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 2789 { 2790 frame_T *frp; 2791 int b; 2792 2793 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 2794 /* Last window in this tab page, will go to next tab page. */ 2795 return alt_tabpage()->tp_curwin->w_frame; 2796 2797 frp = win->w_frame; 2798 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW) 2799 b = p_spr; 2800 else 2801 b = p_sb; 2802 if ((!b && frp->fr_next != NULL) || frp->fr_prev == NULL) 2803 return frp->fr_next; 2804 return frp->fr_prev; 2805 } 2806 2807 /* 2808 * Return the tabpage that will be used if the current one is closed. 2809 */ 2810 static tabpage_T * 2811 alt_tabpage(void) 2812 { 2813 tabpage_T *tp; 2814 2815 /* Use the next tab page if possible. */ 2816 if (curtab->tp_next != NULL) 2817 return curtab->tp_next; 2818 2819 /* Find the last but one tab page. */ 2820 for (tp = first_tabpage; tp->tp_next != curtab; tp = tp->tp_next) 2821 ; 2822 return tp; 2823 } 2824 2825 /* 2826 * Find the left-upper window in frame "frp". 2827 */ 2828 static win_T * 2829 frame2win(frame_T *frp) 2830 { 2831 while (frp->fr_win == NULL) 2832 frp = frp->fr_child; 2833 return frp->fr_win; 2834 } 2835 2836 /* 2837 * Return TRUE if frame "frp" contains window "wp". 2838 */ 2839 static int 2840 frame_has_win(frame_T *frp, win_T *wp) 2841 { 2842 frame_T *p; 2843 2844 if (frp->fr_layout == FR_LEAF) 2845 return frp->fr_win == wp; 2846 2847 for (p = frp->fr_child; p != NULL; p = p->fr_next) 2848 if (frame_has_win(p, wp)) 2849 return TRUE; 2850 return FALSE; 2851 } 2852 2853 /* 2854 * Set a new height for a frame. Recursively sets the height for contained 2855 * frames and windows. Caller must take care of positions. 2856 */ 2857 static void 2858 frame_new_height( 2859 frame_T *topfrp, 2860 int height, 2861 int topfirst, /* resize topmost contained frame first */ 2862 int wfh) /* obey 'winfixheight' when there is a choice; 2863 may cause the height not to be set */ 2864 { 2865 frame_T *frp; 2866 int extra_lines; 2867 int h; 2868 2869 if (topfrp->fr_win != NULL) 2870 { 2871 /* Simple case: just one window. */ 2872 win_new_height(topfrp->fr_win, 2873 height - topfrp->fr_win->w_status_height); 2874 } 2875 else if (topfrp->fr_layout == FR_ROW) 2876 { 2877 do 2878 { 2879 /* All frames in this row get the same new height. */ 2880 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 2881 { 2882 frame_new_height(frp, height, topfirst, wfh); 2883 if (frp->fr_height > height) 2884 { 2885 /* Could not fit the windows, make the whole row higher. */ 2886 height = frp->fr_height; 2887 break; 2888 } 2889 } 2890 } 2891 while (frp != NULL); 2892 } 2893 else /* fr_layout == FR_COL */ 2894 { 2895 /* Complicated case: Resize a column of frames. Resize the bottom 2896 * frame first, frames above that when needed. */ 2897 2898 frp = topfrp->fr_child; 2899 if (wfh) 2900 /* Advance past frames with one window with 'wfh' set. */ 2901 while (frame_fixed_height(frp)) 2902 { 2903 frp = frp->fr_next; 2904 if (frp == NULL) 2905 return; /* no frame without 'wfh', give up */ 2906 } 2907 if (!topfirst) 2908 { 2909 /* Find the bottom frame of this column */ 2910 while (frp->fr_next != NULL) 2911 frp = frp->fr_next; 2912 if (wfh) 2913 /* Advance back for frames with one window with 'wfh' set. */ 2914 while (frame_fixed_height(frp)) 2915 frp = frp->fr_prev; 2916 } 2917 2918 extra_lines = height - topfrp->fr_height; 2919 if (extra_lines < 0) 2920 { 2921 /* reduce height of contained frames, bottom or top frame first */ 2922 while (frp != NULL) 2923 { 2924 h = frame_minheight(frp, NULL); 2925 if (frp->fr_height + extra_lines < h) 2926 { 2927 extra_lines += frp->fr_height - h; 2928 frame_new_height(frp, h, topfirst, wfh); 2929 } 2930 else 2931 { 2932 frame_new_height(frp, frp->fr_height + extra_lines, 2933 topfirst, wfh); 2934 break; 2935 } 2936 if (topfirst) 2937 { 2938 do 2939 frp = frp->fr_next; 2940 while (wfh && frp != NULL && frame_fixed_height(frp)); 2941 } 2942 else 2943 { 2944 do 2945 frp = frp->fr_prev; 2946 while (wfh && frp != NULL && frame_fixed_height(frp)); 2947 } 2948 /* Increase "height" if we could not reduce enough frames. */ 2949 if (frp == NULL) 2950 height -= extra_lines; 2951 } 2952 } 2953 else if (extra_lines > 0) 2954 { 2955 /* increase height of bottom or top frame */ 2956 frame_new_height(frp, frp->fr_height + extra_lines, topfirst, wfh); 2957 } 2958 } 2959 topfrp->fr_height = height; 2960 } 2961 2962 /* 2963 * Return TRUE if height of frame "frp" should not be changed because of 2964 * the 'winfixheight' option. 2965 */ 2966 static int 2967 frame_fixed_height(frame_T *frp) 2968 { 2969 /* frame with one window: fixed height if 'winfixheight' set. */ 2970 if (frp->fr_win != NULL) 2971 return frp->fr_win->w_p_wfh; 2972 2973 if (frp->fr_layout == FR_ROW) 2974 { 2975 /* The frame is fixed height if one of the frames in the row is fixed 2976 * height. */ 2977 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2978 if (frame_fixed_height(frp)) 2979 return TRUE; 2980 return FALSE; 2981 } 2982 2983 /* frp->fr_layout == FR_COL: The frame is fixed height if all of the 2984 * frames in the row are fixed height. */ 2985 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2986 if (!frame_fixed_height(frp)) 2987 return FALSE; 2988 return TRUE; 2989 } 2990 2991 /* 2992 * Return TRUE if width of frame "frp" should not be changed because of 2993 * the 'winfixwidth' option. 2994 */ 2995 static int 2996 frame_fixed_width(frame_T *frp) 2997 { 2998 /* frame with one window: fixed width if 'winfixwidth' set. */ 2999 if (frp->fr_win != NULL) 3000 return frp->fr_win->w_p_wfw; 3001 3002 if (frp->fr_layout == FR_COL) 3003 { 3004 /* The frame is fixed width if one of the frames in the row is fixed 3005 * width. */ 3006 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 3007 if (frame_fixed_width(frp)) 3008 return TRUE; 3009 return FALSE; 3010 } 3011 3012 /* frp->fr_layout == FR_ROW: The frame is fixed width if all of the 3013 * frames in the row are fixed width. */ 3014 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 3015 if (!frame_fixed_width(frp)) 3016 return FALSE; 3017 return TRUE; 3018 } 3019 3020 /* 3021 * Add a status line to windows at the bottom of "frp". 3022 * Note: Does not check if there is room! 3023 */ 3024 static void 3025 frame_add_statusline(frame_T *frp) 3026 { 3027 win_T *wp; 3028 3029 if (frp->fr_layout == FR_LEAF) 3030 { 3031 wp = frp->fr_win; 3032 if (wp->w_status_height == 0) 3033 { 3034 if (wp->w_height > 0) /* don't make it negative */ 3035 --wp->w_height; 3036 wp->w_status_height = STATUS_HEIGHT; 3037 } 3038 } 3039 else if (frp->fr_layout == FR_ROW) 3040 { 3041 /* Handle all the frames in the row. */ 3042 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 3043 frame_add_statusline(frp); 3044 } 3045 else /* frp->fr_layout == FR_COL */ 3046 { 3047 /* Only need to handle the last frame in the column. */ 3048 for (frp = frp->fr_child; frp->fr_next != NULL; frp = frp->fr_next) 3049 ; 3050 frame_add_statusline(frp); 3051 } 3052 } 3053 3054 /* 3055 * Set width of a frame. Handles recursively going through contained frames. 3056 * May remove separator line for windows at the right side (for win_close()). 3057 */ 3058 static void 3059 frame_new_width( 3060 frame_T *topfrp, 3061 int width, 3062 int leftfirst, /* resize leftmost contained frame first */ 3063 int wfw) /* obey 'winfixwidth' when there is a choice; 3064 may cause the width not to be set */ 3065 { 3066 frame_T *frp; 3067 int extra_cols; 3068 int w; 3069 win_T *wp; 3070 3071 if (topfrp->fr_layout == FR_LEAF) 3072 { 3073 /* Simple case: just one window. */ 3074 wp = topfrp->fr_win; 3075 /* Find out if there are any windows right of this one. */ 3076 for (frp = topfrp; frp->fr_parent != NULL; frp = frp->fr_parent) 3077 if (frp->fr_parent->fr_layout == FR_ROW && frp->fr_next != NULL) 3078 break; 3079 if (frp->fr_parent == NULL) 3080 wp->w_vsep_width = 0; 3081 win_new_width(wp, width - wp->w_vsep_width); 3082 } 3083 else if (topfrp->fr_layout == FR_COL) 3084 { 3085 do 3086 { 3087 /* All frames in this column get the same new width. */ 3088 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3089 { 3090 frame_new_width(frp, width, leftfirst, wfw); 3091 if (frp->fr_width > width) 3092 { 3093 /* Could not fit the windows, make whole column wider. */ 3094 width = frp->fr_width; 3095 break; 3096 } 3097 } 3098 } while (frp != NULL); 3099 } 3100 else /* fr_layout == FR_ROW */ 3101 { 3102 /* Complicated case: Resize a row of frames. Resize the rightmost 3103 * frame first, frames left of it when needed. */ 3104 3105 frp = topfrp->fr_child; 3106 if (wfw) 3107 /* Advance past frames with one window with 'wfw' set. */ 3108 while (frame_fixed_width(frp)) 3109 { 3110 frp = frp->fr_next; 3111 if (frp == NULL) 3112 return; /* no frame without 'wfw', give up */ 3113 } 3114 if (!leftfirst) 3115 { 3116 /* Find the rightmost frame of this row */ 3117 while (frp->fr_next != NULL) 3118 frp = frp->fr_next; 3119 if (wfw) 3120 /* Advance back for frames with one window with 'wfw' set. */ 3121 while (frame_fixed_width(frp)) 3122 frp = frp->fr_prev; 3123 } 3124 3125 extra_cols = width - topfrp->fr_width; 3126 if (extra_cols < 0) 3127 { 3128 /* reduce frame width, rightmost frame first */ 3129 while (frp != NULL) 3130 { 3131 w = frame_minwidth(frp, NULL); 3132 if (frp->fr_width + extra_cols < w) 3133 { 3134 extra_cols += frp->fr_width - w; 3135 frame_new_width(frp, w, leftfirst, wfw); 3136 } 3137 else 3138 { 3139 frame_new_width(frp, frp->fr_width + extra_cols, 3140 leftfirst, wfw); 3141 break; 3142 } 3143 if (leftfirst) 3144 { 3145 do 3146 frp = frp->fr_next; 3147 while (wfw && frp != NULL && frame_fixed_width(frp)); 3148 } 3149 else 3150 { 3151 do 3152 frp = frp->fr_prev; 3153 while (wfw && frp != NULL && frame_fixed_width(frp)); 3154 } 3155 /* Increase "width" if we could not reduce enough frames. */ 3156 if (frp == NULL) 3157 width -= extra_cols; 3158 } 3159 } 3160 else if (extra_cols > 0) 3161 { 3162 /* increase width of rightmost frame */ 3163 frame_new_width(frp, frp->fr_width + extra_cols, leftfirst, wfw); 3164 } 3165 } 3166 topfrp->fr_width = width; 3167 } 3168 3169 /* 3170 * Add the vertical separator to windows at the right side of "frp". 3171 * Note: Does not check if there is room! 3172 */ 3173 static void 3174 frame_add_vsep(frame_T *frp) 3175 { 3176 win_T *wp; 3177 3178 if (frp->fr_layout == FR_LEAF) 3179 { 3180 wp = frp->fr_win; 3181 if (wp->w_vsep_width == 0) 3182 { 3183 if (wp->w_width > 0) /* don't make it negative */ 3184 --wp->w_width; 3185 wp->w_vsep_width = 1; 3186 } 3187 } 3188 else if (frp->fr_layout == FR_COL) 3189 { 3190 /* Handle all the frames in the column. */ 3191 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 3192 frame_add_vsep(frp); 3193 } 3194 else /* frp->fr_layout == FR_ROW */ 3195 { 3196 /* Only need to handle the last frame in the row. */ 3197 frp = frp->fr_child; 3198 while (frp->fr_next != NULL) 3199 frp = frp->fr_next; 3200 frame_add_vsep(frp); 3201 } 3202 } 3203 3204 /* 3205 * Set frame width from the window it contains. 3206 */ 3207 static void 3208 frame_fix_width(win_T *wp) 3209 { 3210 wp->w_frame->fr_width = wp->w_width + wp->w_vsep_width; 3211 } 3212 3213 /* 3214 * Set frame height from the window it contains. 3215 */ 3216 static void 3217 frame_fix_height(win_T *wp) 3218 { 3219 wp->w_frame->fr_height = wp->w_height + wp->w_status_height; 3220 } 3221 3222 /* 3223 * Compute the minimal height for frame "topfrp". 3224 * Uses the 'winminheight' option. 3225 * When "next_curwin" isn't NULL, use p_wh for this window. 3226 * When "next_curwin" is NOWIN, don't use at least one line for the current 3227 * window. 3228 */ 3229 static int 3230 frame_minheight(frame_T *topfrp, win_T *next_curwin) 3231 { 3232 frame_T *frp; 3233 int m; 3234 int n; 3235 3236 if (topfrp->fr_win != NULL) 3237 { 3238 if (topfrp->fr_win == next_curwin) 3239 m = p_wh + topfrp->fr_win->w_status_height; 3240 else 3241 { 3242 /* window: minimal height of the window plus status line */ 3243 m = p_wmh + topfrp->fr_win->w_status_height; 3244 /* Current window is minimal one line high */ 3245 if (p_wmh == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3246 ++m; 3247 } 3248 } 3249 else if (topfrp->fr_layout == FR_ROW) 3250 { 3251 /* get the minimal height from each frame in this row */ 3252 m = 0; 3253 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3254 { 3255 n = frame_minheight(frp, next_curwin); 3256 if (n > m) 3257 m = n; 3258 } 3259 } 3260 else 3261 { 3262 /* Add up the minimal heights for all frames in this column. */ 3263 m = 0; 3264 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3265 m += frame_minheight(frp, next_curwin); 3266 } 3267 3268 return m; 3269 } 3270 3271 /* 3272 * Compute the minimal width for frame "topfrp". 3273 * When "next_curwin" isn't NULL, use p_wiw for this window. 3274 * When "next_curwin" is NOWIN, don't use at least one column for the current 3275 * window. 3276 */ 3277 static int 3278 frame_minwidth( 3279 frame_T *topfrp, 3280 win_T *next_curwin) /* use p_wh and p_wiw for next_curwin */ 3281 { 3282 frame_T *frp; 3283 int m, n; 3284 3285 if (topfrp->fr_win != NULL) 3286 { 3287 if (topfrp->fr_win == next_curwin) 3288 m = p_wiw + topfrp->fr_win->w_vsep_width; 3289 else 3290 { 3291 /* window: minimal width of the window plus separator column */ 3292 m = p_wmw + topfrp->fr_win->w_vsep_width; 3293 /* Current window is minimal one column wide */ 3294 if (p_wmw == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3295 ++m; 3296 } 3297 } 3298 else if (topfrp->fr_layout == FR_COL) 3299 { 3300 /* get the minimal width from each frame in this column */ 3301 m = 0; 3302 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3303 { 3304 n = frame_minwidth(frp, next_curwin); 3305 if (n > m) 3306 m = n; 3307 } 3308 } 3309 else 3310 { 3311 /* Add up the minimal widths for all frames in this row. */ 3312 m = 0; 3313 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3314 m += frame_minwidth(frp, next_curwin); 3315 } 3316 3317 return m; 3318 } 3319 3320 3321 /* 3322 * Try to close all windows except current one. 3323 * Buffers in the other windows become hidden if 'hidden' is set, or '!' is 3324 * used and the buffer was modified. 3325 * 3326 * Used by ":bdel" and ":only". 3327 */ 3328 void 3329 close_others( 3330 int message, 3331 int forceit) /* always hide all other windows */ 3332 { 3333 win_T *wp; 3334 win_T *nextwp; 3335 int r; 3336 3337 if (one_window()) 3338 { 3339 if (message 3340 #ifdef FEAT_AUTOCMD 3341 && !autocmd_busy 3342 #endif 3343 ) 3344 MSG(_(m_onlyone)); 3345 return; 3346 } 3347 3348 /* Be very careful here: autocommands may change the window layout. */ 3349 for (wp = firstwin; win_valid(wp); wp = nextwp) 3350 { 3351 nextwp = wp->w_next; 3352 if (wp != curwin) /* don't close current window */ 3353 { 3354 3355 /* Check if it's allowed to abandon this window */ 3356 r = can_abandon(wp->w_buffer, forceit); 3357 #ifdef FEAT_AUTOCMD 3358 if (!win_valid(wp)) /* autocommands messed wp up */ 3359 { 3360 nextwp = firstwin; 3361 continue; 3362 } 3363 #endif 3364 if (!r) 3365 { 3366 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 3367 if (message && (p_confirm || cmdmod.confirm) && p_write) 3368 { 3369 dialog_changed(wp->w_buffer, FALSE); 3370 # ifdef FEAT_AUTOCMD 3371 if (!win_valid(wp)) /* autocommands messed wp up */ 3372 { 3373 nextwp = firstwin; 3374 continue; 3375 } 3376 # endif 3377 } 3378 if (bufIsChanged(wp->w_buffer)) 3379 #endif 3380 continue; 3381 } 3382 win_close(wp, !buf_hide(wp->w_buffer) 3383 && !bufIsChanged(wp->w_buffer)); 3384 } 3385 } 3386 3387 if (message && !ONE_WINDOW) 3388 EMSG(_("E445: Other window contains changes")); 3389 } 3390 3391 #endif /* FEAT_WINDOWS */ 3392 3393 /* 3394 * Init the current window "curwin". 3395 * Called when a new file is being edited. 3396 */ 3397 void 3398 curwin_init(void) 3399 { 3400 win_init_empty(curwin); 3401 } 3402 3403 void 3404 win_init_empty(win_T *wp) 3405 { 3406 redraw_win_later(wp, NOT_VALID); 3407 wp->w_lines_valid = 0; 3408 wp->w_cursor.lnum = 1; 3409 wp->w_curswant = wp->w_cursor.col = 0; 3410 #ifdef FEAT_VIRTUALEDIT 3411 wp->w_cursor.coladd = 0; 3412 #endif 3413 wp->w_pcmark.lnum = 1; /* pcmark not cleared but set to line 1 */ 3414 wp->w_pcmark.col = 0; 3415 wp->w_prev_pcmark.lnum = 0; 3416 wp->w_prev_pcmark.col = 0; 3417 wp->w_topline = 1; 3418 #ifdef FEAT_DIFF 3419 wp->w_topfill = 0; 3420 #endif 3421 wp->w_botline = 2; 3422 #ifdef FEAT_FKMAP 3423 if (wp->w_p_rl) 3424 wp->w_farsi = W_CONV + W_R_L; 3425 else 3426 wp->w_farsi = W_CONV; 3427 #endif 3428 #ifdef FEAT_SYN_HL 3429 wp->w_s = &wp->w_buffer->b_s; 3430 #endif 3431 } 3432 3433 /* 3434 * Allocate the first window and put an empty buffer in it. 3435 * Called from main(). 3436 * Return FAIL when something goes wrong (out of memory). 3437 */ 3438 int 3439 win_alloc_first(void) 3440 { 3441 if (win_alloc_firstwin(NULL) == FAIL) 3442 return FAIL; 3443 3444 #ifdef FEAT_WINDOWS 3445 first_tabpage = alloc_tabpage(); 3446 if (first_tabpage == NULL) 3447 return FAIL; 3448 first_tabpage->tp_topframe = topframe; 3449 curtab = first_tabpage; 3450 #endif 3451 3452 return OK; 3453 } 3454 3455 #if defined(FEAT_AUTOCMD) || defined(PROTO) 3456 /* 3457 * Init "aucmd_win". This can only be done after the first 3458 * window is fully initialized, thus it can't be in win_alloc_first(). 3459 */ 3460 void 3461 win_alloc_aucmd_win(void) 3462 { 3463 aucmd_win = win_alloc(NULL, TRUE); 3464 if (aucmd_win != NULL) 3465 { 3466 win_init_some(aucmd_win, curwin); 3467 RESET_BINDING(aucmd_win); 3468 new_frame(aucmd_win); 3469 } 3470 } 3471 #endif 3472 3473 /* 3474 * Allocate the first window or the first window in a new tab page. 3475 * When "oldwin" is NULL create an empty buffer for it. 3476 * When "oldwin" is not NULL copy info from it to the new window (only with 3477 * FEAT_WINDOWS). 3478 * Return FAIL when something goes wrong (out of memory). 3479 */ 3480 static int 3481 win_alloc_firstwin(win_T *oldwin) 3482 { 3483 curwin = win_alloc(NULL, FALSE); 3484 if (oldwin == NULL) 3485 { 3486 /* Very first window, need to create an empty buffer for it and 3487 * initialize from scratch. */ 3488 curbuf = buflist_new(NULL, NULL, 1L, BLN_LISTED); 3489 if (curwin == NULL || curbuf == NULL) 3490 return FAIL; 3491 curwin->w_buffer = curbuf; 3492 #ifdef FEAT_SYN_HL 3493 curwin->w_s = &(curbuf->b_s); 3494 #endif 3495 curbuf->b_nwindows = 1; /* there is one window */ 3496 #ifdef FEAT_WINDOWS 3497 curwin->w_alist = &global_alist; 3498 #endif 3499 curwin_init(); /* init current window */ 3500 } 3501 #ifdef FEAT_WINDOWS 3502 else 3503 { 3504 /* First window in new tab page, initialize it from "oldwin". */ 3505 win_init(curwin, oldwin, 0); 3506 3507 /* We don't want cursor- and scroll-binding in the first window. */ 3508 RESET_BINDING(curwin); 3509 } 3510 #endif 3511 3512 new_frame(curwin); 3513 if (curwin->w_frame == NULL) 3514 return FAIL; 3515 topframe = curwin->w_frame; 3516 #ifdef FEAT_WINDOWS 3517 topframe->fr_width = Columns; 3518 #endif 3519 topframe->fr_height = Rows - p_ch; 3520 topframe->fr_win = curwin; 3521 3522 return OK; 3523 } 3524 3525 /* 3526 * Create a frame for window "wp". 3527 */ 3528 static void 3529 new_frame(win_T *wp) 3530 { 3531 frame_T *frp = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); 3532 3533 wp->w_frame = frp; 3534 if (frp != NULL) 3535 { 3536 frp->fr_layout = FR_LEAF; 3537 frp->fr_win = wp; 3538 } 3539 } 3540 3541 /* 3542 * Initialize the window and frame size to the maximum. 3543 */ 3544 void 3545 win_init_size(void) 3546 { 3547 firstwin->w_height = ROWS_AVAIL; 3548 topframe->fr_height = ROWS_AVAIL; 3549 #ifdef FEAT_WINDOWS 3550 firstwin->w_width = Columns; 3551 topframe->fr_width = Columns; 3552 #endif 3553 } 3554 3555 #if defined(FEAT_WINDOWS) || defined(PROTO) 3556 3557 /* 3558 * Allocate a new tabpage_T and init the values. 3559 * Returns NULL when out of memory. 3560 */ 3561 static tabpage_T * 3562 alloc_tabpage(void) 3563 { 3564 tabpage_T *tp; 3565 # ifdef FEAT_GUI 3566 int i; 3567 # endif 3568 3569 3570 tp = (tabpage_T *)alloc_clear((unsigned)sizeof(tabpage_T)); 3571 if (tp == NULL) 3572 return NULL; 3573 3574 # ifdef FEAT_EVAL 3575 /* init t: variables */ 3576 tp->tp_vars = dict_alloc(); 3577 if (tp->tp_vars == NULL) 3578 { 3579 vim_free(tp); 3580 return NULL; 3581 } 3582 init_var_dict(tp->tp_vars, &tp->tp_winvar, VAR_SCOPE); 3583 # endif 3584 3585 # ifdef FEAT_GUI 3586 for (i = 0; i < 3; i++) 3587 tp->tp_prev_which_scrollbars[i] = -1; 3588 # endif 3589 # ifdef FEAT_DIFF 3590 tp->tp_diff_invalid = TRUE; 3591 # endif 3592 tp->tp_ch_used = p_ch; 3593 3594 return tp; 3595 } 3596 3597 void 3598 free_tabpage(tabpage_T *tp) 3599 { 3600 int idx; 3601 3602 # ifdef FEAT_DIFF 3603 diff_clear(tp); 3604 # endif 3605 for (idx = 0; idx < SNAP_COUNT; ++idx) 3606 clear_snapshot(tp, idx); 3607 #ifdef FEAT_EVAL 3608 vars_clear(&tp->tp_vars->dv_hashtab); /* free all t: variables */ 3609 hash_init(&tp->tp_vars->dv_hashtab); 3610 unref_var_dict(tp->tp_vars); 3611 #endif 3612 3613 #ifdef FEAT_PYTHON 3614 python_tabpage_free(tp); 3615 #endif 3616 3617 #ifdef FEAT_PYTHON3 3618 python3_tabpage_free(tp); 3619 #endif 3620 3621 vim_free(tp); 3622 } 3623 3624 /* 3625 * Create a new Tab page with one window. 3626 * It will edit the current buffer, like after ":split". 3627 * When "after" is 0 put it just after the current Tab page. 3628 * Otherwise put it just before tab page "after". 3629 * Return FAIL or OK. 3630 */ 3631 int 3632 win_new_tabpage(int after) 3633 { 3634 tabpage_T *tp = curtab; 3635 tabpage_T *newtp; 3636 int n; 3637 3638 newtp = alloc_tabpage(); 3639 if (newtp == NULL) 3640 return FAIL; 3641 3642 /* Remember the current windows in this Tab page. */ 3643 if (leave_tabpage(curbuf, TRUE) == FAIL) 3644 { 3645 vim_free(newtp); 3646 return FAIL; 3647 } 3648 curtab = newtp; 3649 3650 /* Create a new empty window. */ 3651 if (win_alloc_firstwin(tp->tp_curwin) == OK) 3652 { 3653 /* Make the new Tab page the new topframe. */ 3654 if (after == 1) 3655 { 3656 /* New tab page becomes the first one. */ 3657 newtp->tp_next = first_tabpage; 3658 first_tabpage = newtp; 3659 } 3660 else 3661 { 3662 if (after > 0) 3663 { 3664 /* Put new tab page before tab page "after". */ 3665 n = 2; 3666 for (tp = first_tabpage; tp->tp_next != NULL 3667 && n < after; tp = tp->tp_next) 3668 ++n; 3669 } 3670 newtp->tp_next = tp->tp_next; 3671 tp->tp_next = newtp; 3672 } 3673 win_init_size(); 3674 firstwin->w_winrow = tabline_height(); 3675 win_comp_scroll(curwin); 3676 3677 newtp->tp_topframe = topframe; 3678 last_status(FALSE); 3679 3680 #if defined(FEAT_GUI) 3681 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 3682 * scrollbars. Have to update them anyway. */ 3683 gui_may_update_scrollbars(); 3684 #endif 3685 3686 redraw_all_later(CLEAR); 3687 #ifdef FEAT_AUTOCMD 3688 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 3689 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 3690 apply_autocmds(EVENT_TABNEW, NULL, NULL, FALSE, curbuf); 3691 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3692 #endif 3693 return OK; 3694 } 3695 3696 /* Failed, get back the previous Tab page */ 3697 enter_tabpage(curtab, curbuf, TRUE, TRUE); 3698 return FAIL; 3699 } 3700 3701 /* 3702 * Open a new tab page if ":tab cmd" was used. It will edit the same buffer, 3703 * like with ":split". 3704 * Returns OK if a new tab page was created, FAIL otherwise. 3705 */ 3706 int 3707 may_open_tabpage(void) 3708 { 3709 int n = (cmdmod.tab == 0) ? postponed_split_tab : cmdmod.tab; 3710 3711 if (n != 0) 3712 { 3713 cmdmod.tab = 0; /* reset it to avoid doing it twice */ 3714 postponed_split_tab = 0; 3715 return win_new_tabpage(n); 3716 } 3717 return FAIL; 3718 } 3719 3720 /* 3721 * Create up to "maxcount" tabpages with empty windows. 3722 * Returns the number of resulting tab pages. 3723 */ 3724 int 3725 make_tabpages(int maxcount) 3726 { 3727 int count = maxcount; 3728 int todo; 3729 3730 /* Limit to 'tabpagemax' tabs. */ 3731 if (count > p_tpm) 3732 count = p_tpm; 3733 3734 #ifdef FEAT_AUTOCMD 3735 /* 3736 * Don't execute autocommands while creating the tab pages. Must do that 3737 * when putting the buffers in the windows. 3738 */ 3739 block_autocmds(); 3740 #endif 3741 3742 for (todo = count - 1; todo > 0; --todo) 3743 if (win_new_tabpage(0) == FAIL) 3744 break; 3745 3746 #ifdef FEAT_AUTOCMD 3747 unblock_autocmds(); 3748 #endif 3749 3750 /* return actual number of tab pages */ 3751 return (count - todo); 3752 } 3753 3754 /* 3755 * Return TRUE when "tpc" points to a valid tab page. 3756 */ 3757 int 3758 valid_tabpage(tabpage_T *tpc) 3759 { 3760 tabpage_T *tp; 3761 3762 FOR_ALL_TABPAGES(tp) 3763 if (tp == tpc) 3764 return TRUE; 3765 return FALSE; 3766 } 3767 3768 /* 3769 * Return TRUE when "tpc" points to a valid tab page and at least one window is 3770 * valid. 3771 */ 3772 int 3773 valid_tabpage_win(tabpage_T *tpc) 3774 { 3775 tabpage_T *tp; 3776 win_T *wp; 3777 3778 FOR_ALL_TABPAGES(tp) 3779 { 3780 if (tp == tpc) 3781 { 3782 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 3783 { 3784 if (win_valid_any_tab(wp)) 3785 return TRUE; 3786 } 3787 return FALSE; 3788 } 3789 } 3790 /* shouldn't happen */ 3791 return FALSE; 3792 } 3793 3794 /* 3795 * Close tabpage "tab", assuming it has no windows in it. 3796 * There must be another tabpage or this will crash. 3797 */ 3798 void 3799 close_tabpage(tabpage_T *tab) 3800 { 3801 tabpage_T *ptp; 3802 3803 if (tab == first_tabpage) 3804 { 3805 first_tabpage = tab->tp_next; 3806 ptp = first_tabpage; 3807 } 3808 else 3809 { 3810 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tab; 3811 ptp = ptp->tp_next) 3812 ; 3813 assert(ptp != NULL); 3814 ptp->tp_next = tab->tp_next; 3815 } 3816 3817 goto_tabpage_tp(ptp, FALSE, FALSE); 3818 free_tabpage(tab); 3819 } 3820 3821 /* 3822 * Find tab page "n" (first one is 1). Returns NULL when not found. 3823 */ 3824 tabpage_T * 3825 find_tabpage(int n) 3826 { 3827 tabpage_T *tp; 3828 int i = 1; 3829 3830 for (tp = first_tabpage; tp != NULL && i != n; tp = tp->tp_next) 3831 ++i; 3832 return tp; 3833 } 3834 3835 /* 3836 * Get index of tab page "tp". First one has index 1. 3837 * When not found returns number of tab pages plus one. 3838 */ 3839 int 3840 tabpage_index(tabpage_T *ftp) 3841 { 3842 int i = 1; 3843 tabpage_T *tp; 3844 3845 for (tp = first_tabpage; tp != NULL && tp != ftp; tp = tp->tp_next) 3846 ++i; 3847 return i; 3848 } 3849 3850 /* 3851 * Prepare for leaving the current tab page. 3852 * When autocommands change "curtab" we don't leave the tab page and return 3853 * FAIL. 3854 * Careful: When OK is returned need to get a new tab page very very soon! 3855 */ 3856 static int 3857 leave_tabpage( 3858 buf_T *new_curbuf UNUSED, /* what is going to be the new curbuf, 3859 NULL if unknown */ 3860 int trigger_leave_autocmds UNUSED) 3861 { 3862 tabpage_T *tp = curtab; 3863 3864 reset_VIsual_and_resel(); /* stop Visual mode */ 3865 #ifdef FEAT_AUTOCMD 3866 if (trigger_leave_autocmds) 3867 { 3868 if (new_curbuf != curbuf) 3869 { 3870 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 3871 if (curtab != tp) 3872 return FAIL; 3873 } 3874 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 3875 if (curtab != tp) 3876 return FAIL; 3877 apply_autocmds(EVENT_TABLEAVE, NULL, NULL, FALSE, curbuf); 3878 if (curtab != tp) 3879 return FAIL; 3880 } 3881 #endif 3882 #if defined(FEAT_GUI) 3883 /* Remove the scrollbars. They may be added back later. */ 3884 if (gui.in_use) 3885 gui_remove_scrollbars(); 3886 #endif 3887 tp->tp_curwin = curwin; 3888 tp->tp_prevwin = prevwin; 3889 tp->tp_firstwin = firstwin; 3890 tp->tp_lastwin = lastwin; 3891 tp->tp_old_Rows = Rows; 3892 tp->tp_old_Columns = Columns; 3893 firstwin = NULL; 3894 lastwin = NULL; 3895 return OK; 3896 } 3897 3898 /* 3899 * Start using tab page "tp". 3900 * Only to be used after leave_tabpage() or freeing the current tab page. 3901 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 3902 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 3903 */ 3904 static void 3905 enter_tabpage( 3906 tabpage_T *tp, 3907 buf_T *old_curbuf UNUSED, 3908 int trigger_enter_autocmds, 3909 int trigger_leave_autocmds) 3910 { 3911 int old_off = tp->tp_firstwin->w_winrow; 3912 win_T *next_prevwin = tp->tp_prevwin; 3913 3914 curtab = tp; 3915 firstwin = tp->tp_firstwin; 3916 lastwin = tp->tp_lastwin; 3917 topframe = tp->tp_topframe; 3918 3919 /* We would like doing the TabEnter event first, but we don't have a 3920 * valid current window yet, which may break some commands. 3921 * This triggers autocommands, thus may make "tp" invalid. */ 3922 win_enter_ext(tp->tp_curwin, FALSE, TRUE, FALSE, 3923 trigger_enter_autocmds, trigger_leave_autocmds); 3924 prevwin = next_prevwin; 3925 3926 last_status(FALSE); /* status line may appear or disappear */ 3927 (void)win_comp_pos(); /* recompute w_winrow for all windows */ 3928 must_redraw = CLEAR; /* need to redraw everything */ 3929 #ifdef FEAT_DIFF 3930 diff_need_scrollbind = TRUE; 3931 #endif 3932 3933 /* The tabpage line may have appeared or disappeared, may need to resize 3934 * the frames for that. When the Vim window was resized need to update 3935 * frame sizes too. Use the stored value of p_ch, so that it can be 3936 * different for each tab page. */ 3937 p_ch = curtab->tp_ch_used; 3938 if (curtab->tp_old_Rows != Rows || (old_off != firstwin->w_winrow 3939 #ifdef FEAT_GUI_TABLINE 3940 && !gui_use_tabline() 3941 #endif 3942 )) 3943 shell_new_rows(); 3944 if (curtab->tp_old_Columns != Columns && starting == 0) 3945 shell_new_columns(); /* update window widths */ 3946 3947 #if defined(FEAT_GUI) 3948 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 3949 * scrollbars. Have to update them anyway. */ 3950 gui_may_update_scrollbars(); 3951 #endif 3952 3953 #ifdef FEAT_AUTOCMD 3954 /* Apply autocommands after updating the display, when 'rows' and 3955 * 'columns' have been set correctly. */ 3956 if (trigger_enter_autocmds) 3957 { 3958 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3959 if (old_curbuf != curbuf) 3960 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 3961 } 3962 #endif 3963 3964 redraw_all_later(CLEAR); 3965 } 3966 3967 /* 3968 * Go to tab page "n". For ":tab N" and "Ngt". 3969 * When "n" is 9999 go to the last tab page. 3970 */ 3971 void 3972 goto_tabpage(int n) 3973 { 3974 tabpage_T *tp; 3975 tabpage_T *ttp; 3976 int i; 3977 3978 if (text_locked()) 3979 { 3980 /* Not allowed when editing the command line. */ 3981 text_locked_msg(); 3982 return; 3983 } 3984 3985 /* If there is only one it can't work. */ 3986 if (first_tabpage->tp_next == NULL) 3987 { 3988 if (n > 1) 3989 beep_flush(); 3990 return; 3991 } 3992 3993 if (n == 0) 3994 { 3995 /* No count, go to next tab page, wrap around end. */ 3996 if (curtab->tp_next == NULL) 3997 tp = first_tabpage; 3998 else 3999 tp = curtab->tp_next; 4000 } 4001 else if (n < 0) 4002 { 4003 /* "gT": go to previous tab page, wrap around end. "N gT" repeats 4004 * this N times. */ 4005 ttp = curtab; 4006 for (i = n; i < 0; ++i) 4007 { 4008 for (tp = first_tabpage; tp->tp_next != ttp && tp->tp_next != NULL; 4009 tp = tp->tp_next) 4010 ; 4011 ttp = tp; 4012 } 4013 } 4014 else if (n == 9999) 4015 { 4016 /* Go to last tab page. */ 4017 for (tp = first_tabpage; tp->tp_next != NULL; tp = tp->tp_next) 4018 ; 4019 } 4020 else 4021 { 4022 /* Go to tab page "n". */ 4023 tp = find_tabpage(n); 4024 if (tp == NULL) 4025 { 4026 beep_flush(); 4027 return; 4028 } 4029 } 4030 4031 goto_tabpage_tp(tp, TRUE, TRUE); 4032 4033 #ifdef FEAT_GUI_TABLINE 4034 if (gui_use_tabline()) 4035 gui_mch_set_curtab(tabpage_index(curtab)); 4036 #endif 4037 } 4038 4039 /* 4040 * Go to tabpage "tp". 4041 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4042 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4043 * Note: doesn't update the GUI tab. 4044 */ 4045 void 4046 goto_tabpage_tp( 4047 tabpage_T *tp, 4048 int trigger_enter_autocmds, 4049 int trigger_leave_autocmds) 4050 { 4051 /* Don't repeat a message in another tab page. */ 4052 set_keep_msg(NULL, 0); 4053 4054 if (tp != curtab && leave_tabpage(tp->tp_curwin->w_buffer, 4055 trigger_leave_autocmds) == OK) 4056 { 4057 if (valid_tabpage(tp)) 4058 enter_tabpage(tp, curbuf, trigger_enter_autocmds, 4059 trigger_leave_autocmds); 4060 else 4061 enter_tabpage(curtab, curbuf, trigger_enter_autocmds, 4062 trigger_leave_autocmds); 4063 } 4064 } 4065 4066 /* 4067 * Enter window "wp" in tab page "tp". 4068 * Also updates the GUI tab. 4069 */ 4070 void 4071 goto_tabpage_win(tabpage_T *tp, win_T *wp) 4072 { 4073 goto_tabpage_tp(tp, TRUE, TRUE); 4074 if (curtab == tp && win_valid(wp)) 4075 { 4076 win_enter(wp, TRUE); 4077 # ifdef FEAT_GUI_TABLINE 4078 if (gui_use_tabline()) 4079 gui_mch_set_curtab(tabpage_index(curtab)); 4080 # endif 4081 } 4082 } 4083 4084 /* 4085 * Move the current tab page to after tab page "nr". 4086 */ 4087 void 4088 tabpage_move(int nr) 4089 { 4090 int n = 1; 4091 tabpage_T *tp, *tp_dst; 4092 4093 if (first_tabpage->tp_next == NULL) 4094 return; 4095 4096 for (tp = first_tabpage; tp->tp_next != NULL && n < nr; tp = tp->tp_next) 4097 ++n; 4098 4099 if (tp == curtab || (nr > 0 && tp->tp_next != NULL 4100 && tp->tp_next == curtab)) 4101 return; 4102 4103 tp_dst = tp; 4104 4105 /* Remove the current tab page from the list of tab pages. */ 4106 if (curtab == first_tabpage) 4107 first_tabpage = curtab->tp_next; 4108 else 4109 { 4110 FOR_ALL_TABPAGES(tp) 4111 if (tp->tp_next == curtab) 4112 break; 4113 if (tp == NULL) /* "cannot happen" */ 4114 return; 4115 tp->tp_next = curtab->tp_next; 4116 } 4117 4118 /* Re-insert it at the specified position. */ 4119 if (nr <= 0) 4120 { 4121 curtab->tp_next = first_tabpage; 4122 first_tabpage = curtab; 4123 } 4124 else 4125 { 4126 curtab->tp_next = tp_dst->tp_next; 4127 tp_dst->tp_next = curtab; 4128 } 4129 4130 /* Need to redraw the tabline. Tab page contents doesn't change. */ 4131 redraw_tabline = TRUE; 4132 } 4133 4134 4135 /* 4136 * Go to another window. 4137 * When jumping to another buffer, stop Visual mode. Do this before 4138 * changing windows so we can yank the selection into the '*' register. 4139 * When jumping to another window on the same buffer, adjust its cursor 4140 * position to keep the same Visual area. 4141 */ 4142 void 4143 win_goto(win_T *wp) 4144 { 4145 #ifdef FEAT_CONCEAL 4146 win_T *owp = curwin; 4147 #endif 4148 4149 if (text_locked()) 4150 { 4151 beep_flush(); 4152 text_locked_msg(); 4153 return; 4154 } 4155 #ifdef FEAT_AUTOCMD 4156 if (curbuf_locked()) 4157 return; 4158 #endif 4159 4160 if (wp->w_buffer != curbuf) 4161 reset_VIsual_and_resel(); 4162 else if (VIsual_active) 4163 wp->w_cursor = curwin->w_cursor; 4164 4165 #ifdef FEAT_GUI 4166 need_mouse_correct = TRUE; 4167 #endif 4168 win_enter(wp, TRUE); 4169 4170 #ifdef FEAT_CONCEAL 4171 /* Conceal cursor line in previous window, unconceal in current window. */ 4172 if (win_valid(owp) && owp->w_p_cole > 0 && !msg_scrolled) 4173 update_single_line(owp, owp->w_cursor.lnum); 4174 if (curwin->w_p_cole > 0 && !msg_scrolled) 4175 need_cursor_line_redraw = TRUE; 4176 #endif 4177 } 4178 4179 #if defined(FEAT_PERL) || defined(PROTO) 4180 /* 4181 * Find window number "winnr" (counting top to bottom). 4182 */ 4183 win_T * 4184 win_find_nr(int winnr) 4185 { 4186 win_T *wp; 4187 4188 # ifdef FEAT_WINDOWS 4189 FOR_ALL_WINDOWS(wp) 4190 if (--winnr == 0) 4191 break; 4192 return wp; 4193 # else 4194 return curwin; 4195 # endif 4196 } 4197 #endif 4198 4199 #if (defined(FEAT_WINDOWS) && (defined(FEAT_PYTHON) || defined(FEAT_PYTHON3))) \ 4200 || defined(PROTO) 4201 /* 4202 * Find the tabpage for window "win". 4203 */ 4204 tabpage_T * 4205 win_find_tabpage(win_T *win) 4206 { 4207 win_T *wp; 4208 tabpage_T *tp; 4209 4210 FOR_ALL_TAB_WINDOWS(tp, wp) 4211 if (wp == win) 4212 return tp; 4213 return NULL; 4214 } 4215 #endif 4216 4217 /* 4218 * Move to window above or below "count" times. 4219 */ 4220 static void 4221 win_goto_ver( 4222 int up, /* TRUE to go to win above */ 4223 long count) 4224 { 4225 frame_T *fr; 4226 frame_T *nfr; 4227 frame_T *foundfr; 4228 4229 foundfr = curwin->w_frame; 4230 while (count--) 4231 { 4232 /* 4233 * First go upwards in the tree of frames until we find a upwards or 4234 * downwards neighbor. 4235 */ 4236 fr = foundfr; 4237 for (;;) 4238 { 4239 if (fr == topframe) 4240 goto end; 4241 if (up) 4242 nfr = fr->fr_prev; 4243 else 4244 nfr = fr->fr_next; 4245 if (fr->fr_parent->fr_layout == FR_COL && nfr != NULL) 4246 break; 4247 fr = fr->fr_parent; 4248 } 4249 4250 /* 4251 * Now go downwards to find the bottom or top frame in it. 4252 */ 4253 for (;;) 4254 { 4255 if (nfr->fr_layout == FR_LEAF) 4256 { 4257 foundfr = nfr; 4258 break; 4259 } 4260 fr = nfr->fr_child; 4261 if (nfr->fr_layout == FR_ROW) 4262 { 4263 /* Find the frame at the cursor row. */ 4264 while (fr->fr_next != NULL 4265 && frame2win(fr)->w_wincol + fr->fr_width 4266 <= curwin->w_wincol + curwin->w_wcol) 4267 fr = fr->fr_next; 4268 } 4269 if (nfr->fr_layout == FR_COL && up) 4270 while (fr->fr_next != NULL) 4271 fr = fr->fr_next; 4272 nfr = fr; 4273 } 4274 } 4275 end: 4276 if (foundfr != NULL) 4277 win_goto(foundfr->fr_win); 4278 } 4279 4280 /* 4281 * Move to left or right window. 4282 */ 4283 static void 4284 win_goto_hor( 4285 int left, /* TRUE to go to left win */ 4286 long count) 4287 { 4288 frame_T *fr; 4289 frame_T *nfr; 4290 frame_T *foundfr; 4291 4292 foundfr = curwin->w_frame; 4293 while (count--) 4294 { 4295 /* 4296 * First go upwards in the tree of frames until we find a left or 4297 * right neighbor. 4298 */ 4299 fr = foundfr; 4300 for (;;) 4301 { 4302 if (fr == topframe) 4303 goto end; 4304 if (left) 4305 nfr = fr->fr_prev; 4306 else 4307 nfr = fr->fr_next; 4308 if (fr->fr_parent->fr_layout == FR_ROW && nfr != NULL) 4309 break; 4310 fr = fr->fr_parent; 4311 } 4312 4313 /* 4314 * Now go downwards to find the leftmost or rightmost frame in it. 4315 */ 4316 for (;;) 4317 { 4318 if (nfr->fr_layout == FR_LEAF) 4319 { 4320 foundfr = nfr; 4321 break; 4322 } 4323 fr = nfr->fr_child; 4324 if (nfr->fr_layout == FR_COL) 4325 { 4326 /* Find the frame at the cursor row. */ 4327 while (fr->fr_next != NULL 4328 && frame2win(fr)->w_winrow + fr->fr_height 4329 <= curwin->w_winrow + curwin->w_wrow) 4330 fr = fr->fr_next; 4331 } 4332 if (nfr->fr_layout == FR_ROW && left) 4333 while (fr->fr_next != NULL) 4334 fr = fr->fr_next; 4335 nfr = fr; 4336 } 4337 } 4338 end: 4339 if (foundfr != NULL) 4340 win_goto(foundfr->fr_win); 4341 } 4342 4343 /* 4344 * Make window "wp" the current window. 4345 */ 4346 void 4347 win_enter(win_T *wp, int undo_sync) 4348 { 4349 win_enter_ext(wp, undo_sync, FALSE, FALSE, TRUE, TRUE); 4350 } 4351 4352 /* 4353 * Make window wp the current window. 4354 * Can be called with "curwin_invalid" TRUE, which means that curwin has just 4355 * been closed and isn't valid. 4356 */ 4357 static void 4358 win_enter_ext( 4359 win_T *wp, 4360 int undo_sync, 4361 int curwin_invalid, 4362 int trigger_new_autocmds UNUSED, 4363 int trigger_enter_autocmds UNUSED, 4364 int trigger_leave_autocmds UNUSED) 4365 { 4366 #ifdef FEAT_AUTOCMD 4367 int other_buffer = FALSE; 4368 #endif 4369 4370 if (wp == curwin && !curwin_invalid) /* nothing to do */ 4371 return; 4372 4373 #ifdef FEAT_AUTOCMD 4374 if (!curwin_invalid && trigger_leave_autocmds) 4375 { 4376 /* 4377 * Be careful: If autocommands delete the window, return now. 4378 */ 4379 if (wp->w_buffer != curbuf) 4380 { 4381 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4382 other_buffer = TRUE; 4383 if (!win_valid(wp)) 4384 return; 4385 } 4386 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4387 if (!win_valid(wp)) 4388 return; 4389 # ifdef FEAT_EVAL 4390 /* autocmds may abort script processing */ 4391 if (aborting()) 4392 return; 4393 # endif 4394 } 4395 #endif 4396 4397 /* sync undo before leaving the current buffer */ 4398 if (undo_sync && curbuf != wp->w_buffer) 4399 u_sync(FALSE); 4400 4401 /* Might need to scroll the old window before switching, e.g., when the 4402 * cursor was moved. */ 4403 update_topline(); 4404 4405 /* may have to copy the buffer options when 'cpo' contains 'S' */ 4406 if (wp->w_buffer != curbuf) 4407 buf_copy_options(wp->w_buffer, BCO_ENTER | BCO_NOHELP); 4408 if (!curwin_invalid) 4409 { 4410 prevwin = curwin; /* remember for CTRL-W p */ 4411 curwin->w_redr_status = TRUE; 4412 } 4413 curwin = wp; 4414 curbuf = wp->w_buffer; 4415 check_cursor(); 4416 #ifdef FEAT_VIRTUALEDIT 4417 if (!virtual_active()) 4418 curwin->w_cursor.coladd = 0; 4419 #endif 4420 changed_line_abv_curs(); /* assume cursor position needs updating */ 4421 4422 if (curwin->w_localdir != NULL) 4423 { 4424 /* Window has a local directory: Save current directory as global 4425 * directory (unless that was done already) and change to the local 4426 * directory. */ 4427 if (globaldir == NULL) 4428 { 4429 char_u cwd[MAXPATHL]; 4430 4431 if (mch_dirname(cwd, MAXPATHL) == OK) 4432 globaldir = vim_strsave(cwd); 4433 } 4434 if (mch_chdir((char *)curwin->w_localdir) == 0) 4435 shorten_fnames(TRUE); 4436 } 4437 else if (globaldir != NULL) 4438 { 4439 /* Window doesn't have a local directory and we are not in the global 4440 * directory: Change to the global directory. */ 4441 ignored = mch_chdir((char *)globaldir); 4442 vim_free(globaldir); 4443 globaldir = NULL; 4444 shorten_fnames(TRUE); 4445 } 4446 4447 #ifdef FEAT_AUTOCMD 4448 if (trigger_new_autocmds) 4449 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 4450 if (trigger_enter_autocmds) 4451 { 4452 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 4453 if (other_buffer) 4454 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4455 } 4456 #endif 4457 4458 #ifdef FEAT_TITLE 4459 maketitle(); 4460 #endif 4461 curwin->w_redr_status = TRUE; 4462 redraw_tabline = TRUE; 4463 if (restart_edit) 4464 redraw_later(VALID); /* causes status line redraw */ 4465 4466 /* set window height to desired minimal value */ 4467 if (curwin->w_height < p_wh && !curwin->w_p_wfh) 4468 win_setheight((int)p_wh); 4469 else if (curwin->w_height == 0) 4470 win_setheight(1); 4471 4472 /* set window width to desired minimal value */ 4473 if (curwin->w_width < p_wiw && !curwin->w_p_wfw) 4474 win_setwidth((int)p_wiw); 4475 4476 #ifdef FEAT_MOUSE 4477 setmouse(); /* in case jumped to/from help buffer */ 4478 #endif 4479 4480 /* Change directories when the 'acd' option is set. */ 4481 DO_AUTOCHDIR 4482 } 4483 4484 #endif /* FEAT_WINDOWS */ 4485 4486 #if defined(FEAT_WINDOWS) || defined(FEAT_SIGNS) || defined(PROTO) 4487 /* 4488 * Jump to the first open window that contains buffer "buf", if one exists. 4489 * Returns a pointer to the window found, otherwise NULL. 4490 */ 4491 win_T * 4492 buf_jump_open_win(buf_T *buf) 4493 { 4494 win_T *wp = NULL; 4495 4496 if (curwin->w_buffer == buf) 4497 wp = curwin; 4498 # ifdef FEAT_WINDOWS 4499 else 4500 FOR_ALL_WINDOWS(wp) 4501 if (wp->w_buffer == buf) 4502 break; 4503 if (wp != NULL) 4504 win_enter(wp, FALSE); 4505 # endif 4506 return wp; 4507 } 4508 4509 /* 4510 * Jump to the first open window in any tab page that contains buffer "buf", 4511 * if one exists. 4512 * Returns a pointer to the window found, otherwise NULL. 4513 */ 4514 win_T * 4515 buf_jump_open_tab(buf_T *buf) 4516 { 4517 win_T *wp = buf_jump_open_win(buf); 4518 # ifdef FEAT_WINDOWS 4519 tabpage_T *tp; 4520 4521 if (wp != NULL) 4522 return wp; 4523 4524 FOR_ALL_TABPAGES(tp) 4525 if (tp != curtab) 4526 { 4527 for (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next) 4528 if (wp->w_buffer == buf) 4529 break; 4530 if (wp != NULL) 4531 { 4532 goto_tabpage_win(tp, wp); 4533 if (curwin != wp) 4534 wp = NULL; /* something went wrong */ 4535 break; 4536 } 4537 } 4538 # endif 4539 return wp; 4540 } 4541 #endif 4542 4543 static int last_win_id = LOWEST_WIN_ID - 1; 4544 4545 /* 4546 * Allocate a window structure and link it in the window list when "hidden" is 4547 * FALSE. 4548 */ 4549 static win_T * 4550 win_alloc(win_T *after UNUSED, int hidden UNUSED) 4551 { 4552 win_T *new_wp; 4553 4554 /* 4555 * allocate window structure and linesizes arrays 4556 */ 4557 new_wp = (win_T *)alloc_clear((unsigned)sizeof(win_T)); 4558 if (new_wp == NULL) 4559 return NULL; 4560 4561 if (win_alloc_lines(new_wp) == FAIL) 4562 { 4563 vim_free(new_wp); 4564 return NULL; 4565 } 4566 4567 new_wp->w_id = ++last_win_id; 4568 4569 #ifdef FEAT_EVAL 4570 /* init w: variables */ 4571 new_wp->w_vars = dict_alloc(); 4572 if (new_wp->w_vars == NULL) 4573 { 4574 win_free_lsize(new_wp); 4575 vim_free(new_wp); 4576 return NULL; 4577 } 4578 init_var_dict(new_wp->w_vars, &new_wp->w_winvar, VAR_SCOPE); 4579 #endif 4580 4581 #ifdef FEAT_AUTOCMD 4582 /* Don't execute autocommands while the window is not properly 4583 * initialized yet. gui_create_scrollbar() may trigger a FocusGained 4584 * event. */ 4585 block_autocmds(); 4586 #endif 4587 /* 4588 * link the window in the window list 4589 */ 4590 #ifdef FEAT_WINDOWS 4591 if (!hidden) 4592 win_append(after, new_wp); 4593 new_wp->w_wincol = 0; 4594 new_wp->w_width = Columns; 4595 #endif 4596 4597 /* position the display and the cursor at the top of the file. */ 4598 new_wp->w_topline = 1; 4599 #ifdef FEAT_DIFF 4600 new_wp->w_topfill = 0; 4601 #endif 4602 new_wp->w_botline = 2; 4603 new_wp->w_cursor.lnum = 1; 4604 #ifdef FEAT_SCROLLBIND 4605 new_wp->w_scbind_pos = 1; 4606 #endif 4607 4608 /* We won't calculate w_fraction until resizing the window */ 4609 new_wp->w_fraction = 0; 4610 new_wp->w_prev_fraction_row = -1; 4611 4612 #ifdef FEAT_GUI 4613 if (gui.in_use) 4614 { 4615 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_LEFT], 4616 SBAR_LEFT, new_wp); 4617 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_RIGHT], 4618 SBAR_RIGHT, new_wp); 4619 } 4620 #endif 4621 #ifdef FEAT_FOLDING 4622 foldInitWin(new_wp); 4623 #endif 4624 #ifdef FEAT_AUTOCMD 4625 unblock_autocmds(); 4626 #endif 4627 #ifdef FEAT_SEARCH_EXTRA 4628 new_wp->w_match_head = NULL; 4629 new_wp->w_next_match_id = 4; 4630 #endif 4631 return new_wp; 4632 } 4633 4634 #if defined(FEAT_WINDOWS) || defined(PROTO) 4635 4636 /* 4637 * Remove window 'wp' from the window list and free the structure. 4638 */ 4639 static void 4640 win_free( 4641 win_T *wp, 4642 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 4643 { 4644 int i; 4645 buf_T *buf; 4646 wininfo_T *wip; 4647 4648 #ifdef FEAT_FOLDING 4649 clearFolding(wp); 4650 #endif 4651 4652 /* reduce the reference count to the argument list. */ 4653 alist_unlink(wp->w_alist); 4654 4655 #ifdef FEAT_AUTOCMD 4656 /* Don't execute autocommands while the window is halfway being deleted. 4657 * gui_mch_destroy_scrollbar() may trigger a FocusGained event. */ 4658 block_autocmds(); 4659 #endif 4660 4661 #ifdef FEAT_LUA 4662 lua_window_free(wp); 4663 #endif 4664 4665 #ifdef FEAT_MZSCHEME 4666 mzscheme_window_free(wp); 4667 #endif 4668 4669 #ifdef FEAT_PERL 4670 perl_win_free(wp); 4671 #endif 4672 4673 #ifdef FEAT_PYTHON 4674 python_window_free(wp); 4675 #endif 4676 4677 #ifdef FEAT_PYTHON3 4678 python3_window_free(wp); 4679 #endif 4680 4681 #ifdef FEAT_TCL 4682 tcl_window_free(wp); 4683 #endif 4684 4685 #ifdef FEAT_RUBY 4686 ruby_window_free(wp); 4687 #endif 4688 4689 clear_winopt(&wp->w_onebuf_opt); 4690 clear_winopt(&wp->w_allbuf_opt); 4691 4692 #ifdef FEAT_EVAL 4693 vars_clear(&wp->w_vars->dv_hashtab); /* free all w: variables */ 4694 hash_init(&wp->w_vars->dv_hashtab); 4695 unref_var_dict(wp->w_vars); 4696 #endif 4697 4698 { 4699 tabpage_T *ttp; 4700 4701 if (prevwin == wp) 4702 prevwin = NULL; 4703 FOR_ALL_TABPAGES(ttp) 4704 if (ttp->tp_prevwin == wp) 4705 ttp->tp_prevwin = NULL; 4706 } 4707 win_free_lsize(wp); 4708 4709 for (i = 0; i < wp->w_tagstacklen; ++i) 4710 vim_free(wp->w_tagstack[i].tagname); 4711 4712 vim_free(wp->w_localdir); 4713 4714 /* Remove the window from the b_wininfo lists, it may happen that the 4715 * freed memory is re-used for another window. */ 4716 FOR_ALL_BUFFERS(buf) 4717 for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) 4718 if (wip->wi_win == wp) 4719 wip->wi_win = NULL; 4720 4721 #ifdef FEAT_SEARCH_EXTRA 4722 clear_matches(wp); 4723 #endif 4724 4725 #ifdef FEAT_JUMPLIST 4726 free_jumplist(wp); 4727 #endif 4728 4729 #ifdef FEAT_QUICKFIX 4730 qf_free_all(wp); 4731 #endif 4732 4733 #ifdef FEAT_GUI 4734 if (gui.in_use) 4735 { 4736 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_LEFT]); 4737 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_RIGHT]); 4738 } 4739 #endif /* FEAT_GUI */ 4740 4741 #ifdef FEAT_SYN_HL 4742 vim_free(wp->w_p_cc_cols); 4743 #endif 4744 4745 #ifdef FEAT_AUTOCMD 4746 if (wp != aucmd_win) 4747 #endif 4748 win_remove(wp, tp); 4749 #ifdef FEAT_AUTOCMD 4750 if (autocmd_busy) 4751 { 4752 wp->w_next = au_pending_free_win; 4753 au_pending_free_win = wp; 4754 } 4755 else 4756 #endif 4757 vim_free(wp); 4758 4759 #ifdef FEAT_AUTOCMD 4760 unblock_autocmds(); 4761 #endif 4762 } 4763 4764 /* 4765 * Append window "wp" in the window list after window "after". 4766 */ 4767 void 4768 win_append(win_T *after, win_T *wp) 4769 { 4770 win_T *before; 4771 4772 if (after == NULL) /* after NULL is in front of the first */ 4773 before = firstwin; 4774 else 4775 before = after->w_next; 4776 4777 wp->w_next = before; 4778 wp->w_prev = after; 4779 if (after == NULL) 4780 firstwin = wp; 4781 else 4782 after->w_next = wp; 4783 if (before == NULL) 4784 lastwin = wp; 4785 else 4786 before->w_prev = wp; 4787 } 4788 4789 /* 4790 * Remove a window from the window list. 4791 */ 4792 void 4793 win_remove( 4794 win_T *wp, 4795 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 4796 { 4797 if (wp->w_prev != NULL) 4798 wp->w_prev->w_next = wp->w_next; 4799 else if (tp == NULL) 4800 firstwin = wp->w_next; 4801 else 4802 tp->tp_firstwin = wp->w_next; 4803 if (wp->w_next != NULL) 4804 wp->w_next->w_prev = wp->w_prev; 4805 else if (tp == NULL) 4806 lastwin = wp->w_prev; 4807 else 4808 tp->tp_lastwin = wp->w_prev; 4809 } 4810 4811 /* 4812 * Append frame "frp" in a frame list after frame "after". 4813 */ 4814 static void 4815 frame_append(frame_T *after, frame_T *frp) 4816 { 4817 frp->fr_next = after->fr_next; 4818 after->fr_next = frp; 4819 if (frp->fr_next != NULL) 4820 frp->fr_next->fr_prev = frp; 4821 frp->fr_prev = after; 4822 } 4823 4824 /* 4825 * Insert frame "frp" in a frame list before frame "before". 4826 */ 4827 static void 4828 frame_insert(frame_T *before, frame_T *frp) 4829 { 4830 frp->fr_next = before; 4831 frp->fr_prev = before->fr_prev; 4832 before->fr_prev = frp; 4833 if (frp->fr_prev != NULL) 4834 frp->fr_prev->fr_next = frp; 4835 else 4836 frp->fr_parent->fr_child = frp; 4837 } 4838 4839 /* 4840 * Remove a frame from a frame list. 4841 */ 4842 static void 4843 frame_remove(frame_T *frp) 4844 { 4845 if (frp->fr_prev != NULL) 4846 frp->fr_prev->fr_next = frp->fr_next; 4847 else 4848 frp->fr_parent->fr_child = frp->fr_next; 4849 if (frp->fr_next != NULL) 4850 frp->fr_next->fr_prev = frp->fr_prev; 4851 } 4852 4853 #endif /* FEAT_WINDOWS */ 4854 4855 /* 4856 * Allocate w_lines[] for window "wp". 4857 * Return FAIL for failure, OK for success. 4858 */ 4859 int 4860 win_alloc_lines(win_T *wp) 4861 { 4862 wp->w_lines_valid = 0; 4863 wp->w_lines = (wline_T *)alloc_clear((unsigned)(Rows * sizeof(wline_T))); 4864 if (wp->w_lines == NULL) 4865 return FAIL; 4866 return OK; 4867 } 4868 4869 /* 4870 * free lsize arrays for a window 4871 */ 4872 void 4873 win_free_lsize(win_T *wp) 4874 { 4875 /* TODO: why would wp be NULL here? */ 4876 if (wp != NULL) 4877 { 4878 vim_free(wp->w_lines); 4879 wp->w_lines = NULL; 4880 } 4881 } 4882 4883 /* 4884 * Called from win_new_shellsize() after Rows changed. 4885 * This only does the current tab page, others must be done when made active. 4886 */ 4887 void 4888 shell_new_rows(void) 4889 { 4890 int h = (int)ROWS_AVAIL; 4891 4892 if (firstwin == NULL) /* not initialized yet */ 4893 return; 4894 #ifdef FEAT_WINDOWS 4895 if (h < frame_minheight(topframe, NULL)) 4896 h = frame_minheight(topframe, NULL); 4897 4898 /* First try setting the heights of windows with 'winfixheight'. If 4899 * that doesn't result in the right height, forget about that option. */ 4900 frame_new_height(topframe, h, FALSE, TRUE); 4901 if (!frame_check_height(topframe, h)) 4902 frame_new_height(topframe, h, FALSE, FALSE); 4903 4904 (void)win_comp_pos(); /* recompute w_winrow and w_wincol */ 4905 #else 4906 if (h < 1) 4907 h = 1; 4908 win_new_height(firstwin, h); 4909 #endif 4910 compute_cmdrow(); 4911 #ifdef FEAT_WINDOWS 4912 curtab->tp_ch_used = p_ch; 4913 #endif 4914 4915 #if 0 4916 /* Disabled: don't want making the screen smaller make a window larger. */ 4917 if (p_ea) 4918 win_equal(curwin, FALSE, 'v'); 4919 #endif 4920 } 4921 4922 #if defined(FEAT_WINDOWS) || defined(PROTO) 4923 /* 4924 * Called from win_new_shellsize() after Columns changed. 4925 */ 4926 void 4927 shell_new_columns(void) 4928 { 4929 if (firstwin == NULL) /* not initialized yet */ 4930 return; 4931 4932 /* First try setting the widths of windows with 'winfixwidth'. If that 4933 * doesn't result in the right width, forget about that option. */ 4934 frame_new_width(topframe, (int)Columns, FALSE, TRUE); 4935 if (!frame_check_width(topframe, Columns)) 4936 frame_new_width(topframe, (int)Columns, FALSE, FALSE); 4937 4938 (void)win_comp_pos(); /* recompute w_winrow and w_wincol */ 4939 #if 0 4940 /* Disabled: don't want making the screen smaller make a window larger. */ 4941 if (p_ea) 4942 win_equal(curwin, FALSE, 'h'); 4943 #endif 4944 } 4945 #endif 4946 4947 #if defined(FEAT_CMDWIN) || defined(PROTO) 4948 /* 4949 * Save the size of all windows in "gap". 4950 */ 4951 void 4952 win_size_save(garray_T *gap) 4953 4954 { 4955 win_T *wp; 4956 4957 ga_init2(gap, (int)sizeof(int), 1); 4958 if (ga_grow(gap, win_count() * 2) == OK) 4959 FOR_ALL_WINDOWS(wp) 4960 { 4961 ((int *)gap->ga_data)[gap->ga_len++] = 4962 wp->w_width + wp->w_vsep_width; 4963 ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height; 4964 } 4965 } 4966 4967 /* 4968 * Restore window sizes, but only if the number of windows is still the same. 4969 * Does not free the growarray. 4970 */ 4971 void 4972 win_size_restore(garray_T *gap) 4973 { 4974 win_T *wp; 4975 int i, j; 4976 4977 if (win_count() * 2 == gap->ga_len) 4978 { 4979 /* The order matters, because frames contain other frames, but it's 4980 * difficult to get right. The easy way out is to do it twice. */ 4981 for (j = 0; j < 2; ++j) 4982 { 4983 i = 0; 4984 FOR_ALL_WINDOWS(wp) 4985 { 4986 frame_setwidth(wp->w_frame, ((int *)gap->ga_data)[i++]); 4987 win_setheight_win(((int *)gap->ga_data)[i++], wp); 4988 } 4989 } 4990 /* recompute the window positions */ 4991 (void)win_comp_pos(); 4992 } 4993 } 4994 #endif /* FEAT_CMDWIN */ 4995 4996 #if defined(FEAT_WINDOWS) || defined(PROTO) 4997 /* 4998 * Update the position for all windows, using the width and height of the 4999 * frames. 5000 * Returns the row just after the last window. 5001 */ 5002 int 5003 win_comp_pos(void) 5004 { 5005 int row = tabline_height(); 5006 int col = 0; 5007 5008 frame_comp_pos(topframe, &row, &col); 5009 return row; 5010 } 5011 5012 /* 5013 * Update the position of the windows in frame "topfrp", using the width and 5014 * height of the frames. 5015 * "*row" and "*col" are the top-left position of the frame. They are updated 5016 * to the bottom-right position plus one. 5017 */ 5018 static void 5019 frame_comp_pos(frame_T *topfrp, int *row, int *col) 5020 { 5021 win_T *wp; 5022 frame_T *frp; 5023 int startcol; 5024 int startrow; 5025 5026 wp = topfrp->fr_win; 5027 if (wp != NULL) 5028 { 5029 if (wp->w_winrow != *row || wp->w_wincol != *col) 5030 { 5031 /* position changed, redraw */ 5032 wp->w_winrow = *row; 5033 wp->w_wincol = *col; 5034 redraw_win_later(wp, NOT_VALID); 5035 wp->w_redr_status = TRUE; 5036 } 5037 *row += wp->w_height + wp->w_status_height; 5038 *col += wp->w_width + wp->w_vsep_width; 5039 } 5040 else 5041 { 5042 startrow = *row; 5043 startcol = *col; 5044 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 5045 { 5046 if (topfrp->fr_layout == FR_ROW) 5047 *row = startrow; /* all frames are at the same row */ 5048 else 5049 *col = startcol; /* all frames are at the same col */ 5050 frame_comp_pos(frp, row, col); 5051 } 5052 } 5053 } 5054 5055 #endif /* FEAT_WINDOWS */ 5056 5057 /* 5058 * Set current window height and take care of repositioning other windows to 5059 * fit around it. 5060 */ 5061 void 5062 win_setheight(int height) 5063 { 5064 win_setheight_win(height, curwin); 5065 } 5066 5067 /* 5068 * Set the window height of window "win" and take care of repositioning other 5069 * windows to fit around it. 5070 */ 5071 void 5072 win_setheight_win(int height, win_T *win) 5073 { 5074 int row; 5075 5076 if (win == curwin) 5077 { 5078 /* Always keep current window at least one line high, even when 5079 * 'winminheight' is zero. */ 5080 #ifdef FEAT_WINDOWS 5081 if (height < p_wmh) 5082 height = p_wmh; 5083 #endif 5084 if (height == 0) 5085 height = 1; 5086 } 5087 5088 #ifdef FEAT_WINDOWS 5089 frame_setheight(win->w_frame, height + win->w_status_height); 5090 5091 /* recompute the window positions */ 5092 row = win_comp_pos(); 5093 #else 5094 if (height > topframe->fr_height) 5095 height = topframe->fr_height; 5096 win->w_height = height; 5097 row = height; 5098 #endif 5099 5100 /* 5101 * If there is extra space created between the last window and the command 5102 * line, clear it. 5103 */ 5104 if (full_screen && msg_scrolled == 0 && row < cmdline_row) 5105 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5106 cmdline_row = row; 5107 msg_row = row; 5108 msg_col = 0; 5109 5110 redraw_all_later(NOT_VALID); 5111 } 5112 5113 #if defined(FEAT_WINDOWS) || defined(PROTO) 5114 5115 /* 5116 * Set the height of a frame to "height" and take care that all frames and 5117 * windows inside it are resized. Also resize frames on the left and right if 5118 * the are in the same FR_ROW frame. 5119 * 5120 * Strategy: 5121 * If the frame is part of a FR_COL frame, try fitting the frame in that 5122 * frame. If that doesn't work (the FR_COL frame is too small), recursively 5123 * go to containing frames to resize them and make room. 5124 * If the frame is part of a FR_ROW frame, all frames must be resized as well. 5125 * Check for the minimal height of the FR_ROW frame. 5126 * At the top level we can also use change the command line height. 5127 */ 5128 static void 5129 frame_setheight(frame_T *curfrp, int height) 5130 { 5131 int room; /* total number of lines available */ 5132 int take; /* number of lines taken from other windows */ 5133 int room_cmdline; /* lines available from cmdline */ 5134 int run; 5135 frame_T *frp; 5136 int h; 5137 int room_reserved; 5138 5139 /* If the height already is the desired value, nothing to do. */ 5140 if (curfrp->fr_height == height) 5141 return; 5142 5143 if (curfrp->fr_parent == NULL) 5144 { 5145 /* topframe: can only change the command line */ 5146 if (height > ROWS_AVAIL) 5147 height = ROWS_AVAIL; 5148 if (height > 0) 5149 frame_new_height(curfrp, height, FALSE, FALSE); 5150 } 5151 else if (curfrp->fr_parent->fr_layout == FR_ROW) 5152 { 5153 /* Row of frames: Also need to resize frames left and right of this 5154 * one. First check for the minimal height of these. */ 5155 h = frame_minheight(curfrp->fr_parent, NULL); 5156 if (height < h) 5157 height = h; 5158 frame_setheight(curfrp->fr_parent, height); 5159 } 5160 else 5161 { 5162 /* 5163 * Column of frames: try to change only frames in this column. 5164 */ 5165 /* 5166 * Do this twice: 5167 * 1: compute room available, if it's not enough try resizing the 5168 * containing frame. 5169 * 2: compute the room available and adjust the height to it. 5170 * Try not to reduce the height of a window with 'winfixheight' set. 5171 */ 5172 for (run = 1; run <= 2; ++run) 5173 { 5174 room = 0; 5175 room_reserved = 0; 5176 for (frp = curfrp->fr_parent->fr_child; frp != NULL; 5177 frp = frp->fr_next) 5178 { 5179 if (frp != curfrp 5180 && frp->fr_win != NULL 5181 && frp->fr_win->w_p_wfh) 5182 room_reserved += frp->fr_height; 5183 room += frp->fr_height; 5184 if (frp != curfrp) 5185 room -= frame_minheight(frp, NULL); 5186 } 5187 if (curfrp->fr_width != Columns) 5188 room_cmdline = 0; 5189 else 5190 { 5191 room_cmdline = Rows - p_ch - (lastwin->w_winrow 5192 + lastwin->w_height + lastwin->w_status_height); 5193 if (room_cmdline < 0) 5194 room_cmdline = 0; 5195 } 5196 5197 if (height <= room + room_cmdline) 5198 break; 5199 if (run == 2 || curfrp->fr_width == Columns) 5200 { 5201 if (height > room + room_cmdline) 5202 height = room + room_cmdline; 5203 break; 5204 } 5205 frame_setheight(curfrp->fr_parent, height 5206 + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1); 5207 } 5208 5209 /* 5210 * Compute the number of lines we will take from others frames (can be 5211 * negative!). 5212 */ 5213 take = height - curfrp->fr_height; 5214 5215 /* If there is not enough room, also reduce the height of a window 5216 * with 'winfixheight' set. */ 5217 if (height > room + room_cmdline - room_reserved) 5218 room_reserved = room + room_cmdline - height; 5219 /* If there is only a 'winfixheight' window and making the 5220 * window smaller, need to make the other window taller. */ 5221 if (take < 0 && room - curfrp->fr_height < room_reserved) 5222 room_reserved = 0; 5223 5224 if (take > 0 && room_cmdline > 0) 5225 { 5226 /* use lines from cmdline first */ 5227 if (take < room_cmdline) 5228 room_cmdline = take; 5229 take -= room_cmdline; 5230 topframe->fr_height += room_cmdline; 5231 } 5232 5233 /* 5234 * set the current frame to the new height 5235 */ 5236 frame_new_height(curfrp, height, FALSE, FALSE); 5237 5238 /* 5239 * First take lines from the frames after the current frame. If 5240 * that is not enough, takes lines from frames above the current 5241 * frame. 5242 */ 5243 for (run = 0; run < 2; ++run) 5244 { 5245 if (run == 0) 5246 frp = curfrp->fr_next; /* 1st run: start with next window */ 5247 else 5248 frp = curfrp->fr_prev; /* 2nd run: start with prev window */ 5249 while (frp != NULL && take != 0) 5250 { 5251 h = frame_minheight(frp, NULL); 5252 if (room_reserved > 0 5253 && frp->fr_win != NULL 5254 && frp->fr_win->w_p_wfh) 5255 { 5256 if (room_reserved >= frp->fr_height) 5257 room_reserved -= frp->fr_height; 5258 else 5259 { 5260 if (frp->fr_height - room_reserved > take) 5261 room_reserved = frp->fr_height - take; 5262 take -= frp->fr_height - room_reserved; 5263 frame_new_height(frp, room_reserved, FALSE, FALSE); 5264 room_reserved = 0; 5265 } 5266 } 5267 else 5268 { 5269 if (frp->fr_height - take < h) 5270 { 5271 take -= frp->fr_height - h; 5272 frame_new_height(frp, h, FALSE, FALSE); 5273 } 5274 else 5275 { 5276 frame_new_height(frp, frp->fr_height - take, 5277 FALSE, FALSE); 5278 take = 0; 5279 } 5280 } 5281 if (run == 0) 5282 frp = frp->fr_next; 5283 else 5284 frp = frp->fr_prev; 5285 } 5286 } 5287 } 5288 } 5289 5290 /* 5291 * Set current window width and take care of repositioning other windows to 5292 * fit around it. 5293 */ 5294 void 5295 win_setwidth(int width) 5296 { 5297 win_setwidth_win(width, curwin); 5298 } 5299 5300 void 5301 win_setwidth_win(int width, win_T *wp) 5302 { 5303 /* Always keep current window at least one column wide, even when 5304 * 'winminwidth' is zero. */ 5305 if (wp == curwin) 5306 { 5307 if (width < p_wmw) 5308 width = p_wmw; 5309 if (width == 0) 5310 width = 1; 5311 } 5312 5313 frame_setwidth(wp->w_frame, width + wp->w_vsep_width); 5314 5315 /* recompute the window positions */ 5316 (void)win_comp_pos(); 5317 5318 redraw_all_later(NOT_VALID); 5319 } 5320 5321 /* 5322 * Set the width of a frame to "width" and take care that all frames and 5323 * windows inside it are resized. Also resize frames above and below if the 5324 * are in the same FR_ROW frame. 5325 * 5326 * Strategy is similar to frame_setheight(). 5327 */ 5328 static void 5329 frame_setwidth(frame_T *curfrp, int width) 5330 { 5331 int room; /* total number of lines available */ 5332 int take; /* number of lines taken from other windows */ 5333 int run; 5334 frame_T *frp; 5335 int w; 5336 int room_reserved; 5337 5338 /* If the width already is the desired value, nothing to do. */ 5339 if (curfrp->fr_width == width) 5340 return; 5341 5342 if (curfrp->fr_parent == NULL) 5343 /* topframe: can't change width */ 5344 return; 5345 5346 if (curfrp->fr_parent->fr_layout == FR_COL) 5347 { 5348 /* Column of frames: Also need to resize frames above and below of 5349 * this one. First check for the minimal width of these. */ 5350 w = frame_minwidth(curfrp->fr_parent, NULL); 5351 if (width < w) 5352 width = w; 5353 frame_setwidth(curfrp->fr_parent, width); 5354 } 5355 else 5356 { 5357 /* 5358 * Row of frames: try to change only frames in this row. 5359 * 5360 * Do this twice: 5361 * 1: compute room available, if it's not enough try resizing the 5362 * containing frame. 5363 * 2: compute the room available and adjust the width to it. 5364 */ 5365 for (run = 1; run <= 2; ++run) 5366 { 5367 room = 0; 5368 room_reserved = 0; 5369 for (frp = curfrp->fr_parent->fr_child; frp != NULL; 5370 frp = frp->fr_next) 5371 { 5372 if (frp != curfrp 5373 && frp->fr_win != NULL 5374 && frp->fr_win->w_p_wfw) 5375 room_reserved += frp->fr_width; 5376 room += frp->fr_width; 5377 if (frp != curfrp) 5378 room -= frame_minwidth(frp, NULL); 5379 } 5380 5381 if (width <= room) 5382 break; 5383 if (run == 2 || curfrp->fr_height >= ROWS_AVAIL) 5384 { 5385 if (width > room) 5386 width = room; 5387 break; 5388 } 5389 frame_setwidth(curfrp->fr_parent, width 5390 + frame_minwidth(curfrp->fr_parent, NOWIN) - (int)p_wmw - 1); 5391 } 5392 5393 /* 5394 * Compute the number of lines we will take from others frames (can be 5395 * negative!). 5396 */ 5397 take = width - curfrp->fr_width; 5398 5399 /* If there is not enough room, also reduce the width of a window 5400 * with 'winfixwidth' set. */ 5401 if (width > room - room_reserved) 5402 room_reserved = room - width; 5403 /* If there is only a 'winfixwidth' window and making the 5404 * window smaller, need to make the other window narrower. */ 5405 if (take < 0 && room - curfrp->fr_width < room_reserved) 5406 room_reserved = 0; 5407 5408 /* 5409 * set the current frame to the new width 5410 */ 5411 frame_new_width(curfrp, width, FALSE, FALSE); 5412 5413 /* 5414 * First take lines from the frames right of the current frame. If 5415 * that is not enough, takes lines from frames left of the current 5416 * frame. 5417 */ 5418 for (run = 0; run < 2; ++run) 5419 { 5420 if (run == 0) 5421 frp = curfrp->fr_next; /* 1st run: start with next window */ 5422 else 5423 frp = curfrp->fr_prev; /* 2nd run: start with prev window */ 5424 while (frp != NULL && take != 0) 5425 { 5426 w = frame_minwidth(frp, NULL); 5427 if (room_reserved > 0 5428 && frp->fr_win != NULL 5429 && frp->fr_win->w_p_wfw) 5430 { 5431 if (room_reserved >= frp->fr_width) 5432 room_reserved -= frp->fr_width; 5433 else 5434 { 5435 if (frp->fr_width - room_reserved > take) 5436 room_reserved = frp->fr_width - take; 5437 take -= frp->fr_width - room_reserved; 5438 frame_new_width(frp, room_reserved, FALSE, FALSE); 5439 room_reserved = 0; 5440 } 5441 } 5442 else 5443 { 5444 if (frp->fr_width - take < w) 5445 { 5446 take -= frp->fr_width - w; 5447 frame_new_width(frp, w, FALSE, FALSE); 5448 } 5449 else 5450 { 5451 frame_new_width(frp, frp->fr_width - take, 5452 FALSE, FALSE); 5453 take = 0; 5454 } 5455 } 5456 if (run == 0) 5457 frp = frp->fr_next; 5458 else 5459 frp = frp->fr_prev; 5460 } 5461 } 5462 } 5463 } 5464 5465 /* 5466 * Check 'winminheight' for a valid value. 5467 */ 5468 void 5469 win_setminheight(void) 5470 { 5471 int room; 5472 int first = TRUE; 5473 win_T *wp; 5474 5475 /* loop until there is a 'winminheight' that is possible */ 5476 while (p_wmh > 0) 5477 { 5478 /* TODO: handle vertical splits */ 5479 room = -p_wh; 5480 FOR_ALL_WINDOWS(wp) 5481 room += wp->w_height - p_wmh; 5482 if (room >= 0) 5483 break; 5484 --p_wmh; 5485 if (first) 5486 { 5487 EMSG(_(e_noroom)); 5488 first = FALSE; 5489 } 5490 } 5491 } 5492 5493 #if defined(FEAT_MOUSE) || defined(PROTO) 5494 5495 /* 5496 * Status line of dragwin is dragged "offset" lines down (negative is up). 5497 */ 5498 void 5499 win_drag_status_line(win_T *dragwin, int offset) 5500 { 5501 frame_T *curfr; 5502 frame_T *fr; 5503 int room; 5504 int row; 5505 int up; /* if TRUE, drag status line up, otherwise down */ 5506 int n; 5507 5508 fr = dragwin->w_frame; 5509 curfr = fr; 5510 if (fr != topframe) /* more than one window */ 5511 { 5512 fr = fr->fr_parent; 5513 /* When the parent frame is not a column of frames, its parent should 5514 * be. */ 5515 if (fr->fr_layout != FR_COL) 5516 { 5517 curfr = fr; 5518 if (fr != topframe) /* only a row of windows, may drag statusline */ 5519 fr = fr->fr_parent; 5520 } 5521 } 5522 5523 /* If this is the last frame in a column, may want to resize the parent 5524 * frame instead (go two up to skip a row of frames). */ 5525 while (curfr != topframe && curfr->fr_next == NULL) 5526 { 5527 if (fr != topframe) 5528 fr = fr->fr_parent; 5529 curfr = fr; 5530 if (fr != topframe) 5531 fr = fr->fr_parent; 5532 } 5533 5534 if (offset < 0) /* drag up */ 5535 { 5536 up = TRUE; 5537 offset = -offset; 5538 /* sum up the room of the current frame and above it */ 5539 if (fr == curfr) 5540 { 5541 /* only one window */ 5542 room = fr->fr_height - frame_minheight(fr, NULL); 5543 } 5544 else 5545 { 5546 room = 0; 5547 for (fr = fr->fr_child; ; fr = fr->fr_next) 5548 { 5549 room += fr->fr_height - frame_minheight(fr, NULL); 5550 if (fr == curfr) 5551 break; 5552 } 5553 } 5554 fr = curfr->fr_next; /* put fr at frame that grows */ 5555 } 5556 else /* drag down */ 5557 { 5558 up = FALSE; 5559 /* 5560 * Only dragging the last status line can reduce p_ch. 5561 */ 5562 room = Rows - cmdline_row; 5563 if (curfr->fr_next == NULL) 5564 room -= 1; 5565 else 5566 room -= p_ch; 5567 if (room < 0) 5568 room = 0; 5569 /* sum up the room of frames below of the current one */ 5570 for (fr = curfr->fr_next; fr != NULL; fr = fr->fr_next) 5571 room += fr->fr_height - frame_minheight(fr, NULL); 5572 fr = curfr; /* put fr at window that grows */ 5573 } 5574 5575 if (room < offset) /* Not enough room */ 5576 offset = room; /* Move as far as we can */ 5577 if (offset <= 0) 5578 return; 5579 5580 /* 5581 * Grow frame fr by "offset" lines. 5582 * Doesn't happen when dragging the last status line up. 5583 */ 5584 if (fr != NULL) 5585 frame_new_height(fr, fr->fr_height + offset, up, FALSE); 5586 5587 if (up) 5588 fr = curfr; /* current frame gets smaller */ 5589 else 5590 fr = curfr->fr_next; /* next frame gets smaller */ 5591 5592 /* 5593 * Now make the other frames smaller. 5594 */ 5595 while (fr != NULL && offset > 0) 5596 { 5597 n = frame_minheight(fr, NULL); 5598 if (fr->fr_height - offset <= n) 5599 { 5600 offset -= fr->fr_height - n; 5601 frame_new_height(fr, n, !up, FALSE); 5602 } 5603 else 5604 { 5605 frame_new_height(fr, fr->fr_height - offset, !up, FALSE); 5606 break; 5607 } 5608 if (up) 5609 fr = fr->fr_prev; 5610 else 5611 fr = fr->fr_next; 5612 } 5613 row = win_comp_pos(); 5614 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5615 cmdline_row = row; 5616 p_ch = Rows - cmdline_row; 5617 if (p_ch < 1) 5618 p_ch = 1; 5619 curtab->tp_ch_used = p_ch; 5620 redraw_all_later(SOME_VALID); 5621 showmode(); 5622 } 5623 5624 /* 5625 * Separator line of dragwin is dragged "offset" lines right (negative is left). 5626 */ 5627 void 5628 win_drag_vsep_line(win_T *dragwin, int offset) 5629 { 5630 frame_T *curfr; 5631 frame_T *fr; 5632 int room; 5633 int left; /* if TRUE, drag separator line left, otherwise right */ 5634 int n; 5635 5636 fr = dragwin->w_frame; 5637 if (fr == topframe) /* only one window (cannot happen?) */ 5638 return; 5639 curfr = fr; 5640 fr = fr->fr_parent; 5641 /* When the parent frame is not a row of frames, its parent should be. */ 5642 if (fr->fr_layout != FR_ROW) 5643 { 5644 if (fr == topframe) /* only a column of windows (cannot happen?) */ 5645 return; 5646 curfr = fr; 5647 fr = fr->fr_parent; 5648 } 5649 5650 /* If this is the last frame in a row, may want to resize a parent 5651 * frame instead. */ 5652 while (curfr->fr_next == NULL) 5653 { 5654 if (fr == topframe) 5655 break; 5656 curfr = fr; 5657 fr = fr->fr_parent; 5658 if (fr != topframe) 5659 { 5660 curfr = fr; 5661 fr = fr->fr_parent; 5662 } 5663 } 5664 5665 if (offset < 0) /* drag left */ 5666 { 5667 left = TRUE; 5668 offset = -offset; 5669 /* sum up the room of the current frame and left of it */ 5670 room = 0; 5671 for (fr = fr->fr_child; ; fr = fr->fr_next) 5672 { 5673 room += fr->fr_width - frame_minwidth(fr, NULL); 5674 if (fr == curfr) 5675 break; 5676 } 5677 fr = curfr->fr_next; /* put fr at frame that grows */ 5678 } 5679 else /* drag right */ 5680 { 5681 left = FALSE; 5682 /* sum up the room of frames right of the current one */ 5683 room = 0; 5684 for (fr = curfr->fr_next; fr != NULL; fr = fr->fr_next) 5685 room += fr->fr_width - frame_minwidth(fr, NULL); 5686 fr = curfr; /* put fr at window that grows */ 5687 } 5688 5689 if (room < offset) /* Not enough room */ 5690 offset = room; /* Move as far as we can */ 5691 if (offset <= 0) /* No room at all, quit. */ 5692 return; 5693 if (fr == NULL) 5694 return; /* Safety check, should not happen. */ 5695 5696 /* grow frame fr by offset lines */ 5697 frame_new_width(fr, fr->fr_width + offset, left, FALSE); 5698 5699 /* shrink other frames: current and at the left or at the right */ 5700 if (left) 5701 fr = curfr; /* current frame gets smaller */ 5702 else 5703 fr = curfr->fr_next; /* next frame gets smaller */ 5704 5705 while (fr != NULL && offset > 0) 5706 { 5707 n = frame_minwidth(fr, NULL); 5708 if (fr->fr_width - offset <= n) 5709 { 5710 offset -= fr->fr_width - n; 5711 frame_new_width(fr, n, !left, FALSE); 5712 } 5713 else 5714 { 5715 frame_new_width(fr, fr->fr_width - offset, !left, FALSE); 5716 break; 5717 } 5718 if (left) 5719 fr = fr->fr_prev; 5720 else 5721 fr = fr->fr_next; 5722 } 5723 (void)win_comp_pos(); 5724 redraw_all_later(NOT_VALID); 5725 } 5726 #endif /* FEAT_MOUSE */ 5727 5728 #endif /* FEAT_WINDOWS */ 5729 5730 #define FRACTION_MULT 16384L 5731 5732 /* 5733 * Set wp->w_fraction for the current w_wrow and w_height. 5734 */ 5735 void 5736 set_fraction(win_T *wp) 5737 { 5738 wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT 5739 + wp->w_height / 2) / (long)wp->w_height; 5740 } 5741 5742 /* 5743 * Set the height of a window. 5744 * This takes care of the things inside the window, not what happens to the 5745 * window position, the frame or to other windows. 5746 */ 5747 void 5748 win_new_height(win_T *wp, int height) 5749 { 5750 int prev_height = wp->w_height; 5751 5752 /* Don't want a negative height. Happens when splitting a tiny window. 5753 * Will equalize heights soon to fix it. */ 5754 if (height < 0) 5755 height = 0; 5756 if (wp->w_height == height) 5757 return; /* nothing to do */ 5758 5759 if (wp->w_height > 0) 5760 { 5761 if (wp == curwin) 5762 /* w_wrow needs to be valid. When setting 'laststatus' this may 5763 * call win_new_height() recursively. */ 5764 validate_cursor(); 5765 if (wp->w_height != prev_height) 5766 return; /* Recursive call already changed the size, bail out here 5767 to avoid the following to mess things up. */ 5768 if (wp->w_wrow != wp->w_prev_fraction_row) 5769 set_fraction(wp); 5770 } 5771 5772 wp->w_height = height; 5773 wp->w_skipcol = 0; 5774 5775 /* There is no point in adjusting the scroll position when exiting. Some 5776 * values might be invalid. */ 5777 if (!exiting) 5778 scroll_to_fraction(wp, prev_height); 5779 } 5780 5781 void 5782 scroll_to_fraction(win_T *wp, int prev_height) 5783 { 5784 linenr_T lnum; 5785 int sline, line_size; 5786 int height = wp->w_height; 5787 5788 /* Don't change w_topline when height is zero. Don't set w_topline when 5789 * 'scrollbind' is set and this isn't the current window. */ 5790 if (height > 0 5791 #ifdef FEAT_SCROLLBIND 5792 && (!wp->w_p_scb || wp == curwin) 5793 #endif 5794 ) 5795 { 5796 /* 5797 * Find a value for w_topline that shows the cursor at the same 5798 * relative position in the window as before (more or less). 5799 */ 5800 lnum = wp->w_cursor.lnum; 5801 if (lnum < 1) /* can happen when starting up */ 5802 lnum = 1; 5803 wp->w_wrow = ((long)wp->w_fraction * (long)height - 1L 5804 + FRACTION_MULT / 2) / FRACTION_MULT; 5805 line_size = plines_win_col(wp, lnum, (long)(wp->w_cursor.col)) - 1; 5806 sline = wp->w_wrow - line_size; 5807 5808 if (sline >= 0) 5809 { 5810 /* Make sure the whole cursor line is visible, if possible. */ 5811 int rows = plines_win(wp, lnum, FALSE); 5812 5813 if (sline > wp->w_height - rows) 5814 { 5815 sline = wp->w_height - rows; 5816 wp->w_wrow -= rows - line_size; 5817 } 5818 } 5819 5820 if (sline < 0) 5821 { 5822 /* 5823 * Cursor line would go off top of screen if w_wrow was this high. 5824 * Make cursor line the first line in the window. If not enough 5825 * room use w_skipcol; 5826 */ 5827 wp->w_wrow = line_size; 5828 if (wp->w_wrow >= wp->w_height 5829 && (W_WIDTH(wp) - win_col_off(wp)) > 0) 5830 { 5831 wp->w_skipcol += W_WIDTH(wp) - win_col_off(wp); 5832 --wp->w_wrow; 5833 while (wp->w_wrow >= wp->w_height) 5834 { 5835 wp->w_skipcol += W_WIDTH(wp) - win_col_off(wp) 5836 + win_col_off2(wp); 5837 --wp->w_wrow; 5838 } 5839 } 5840 set_topline(wp, lnum); 5841 } 5842 else if (sline > 0) 5843 { 5844 while (sline > 0 && lnum > 1) 5845 { 5846 #ifdef FEAT_FOLDING 5847 hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); 5848 if (lnum == 1) 5849 { 5850 /* first line in buffer is folded */ 5851 line_size = 1; 5852 --sline; 5853 break; 5854 } 5855 #endif 5856 --lnum; 5857 #ifdef FEAT_DIFF 5858 if (lnum == wp->w_topline) 5859 line_size = plines_win_nofill(wp, lnum, TRUE) 5860 + wp->w_topfill; 5861 else 5862 #endif 5863 line_size = plines_win(wp, lnum, TRUE); 5864 sline -= line_size; 5865 } 5866 5867 if (sline < 0) 5868 { 5869 /* 5870 * Line we want at top would go off top of screen. Use next 5871 * line instead. 5872 */ 5873 #ifdef FEAT_FOLDING 5874 hasFoldingWin(wp, lnum, NULL, &lnum, TRUE, NULL); 5875 #endif 5876 lnum++; 5877 wp->w_wrow -= line_size + sline; 5878 } 5879 else if (sline > 0) 5880 { 5881 /* First line of file reached, use that as topline. */ 5882 lnum = 1; 5883 wp->w_wrow -= sline; 5884 } 5885 5886 set_topline(wp, lnum); 5887 } 5888 } 5889 5890 if (wp == curwin) 5891 { 5892 if (p_so) 5893 update_topline(); 5894 curs_columns(FALSE); /* validate w_wrow */ 5895 } 5896 if (prev_height > 0) 5897 wp->w_prev_fraction_row = wp->w_wrow; 5898 5899 win_comp_scroll(wp); 5900 redraw_win_later(wp, SOME_VALID); 5901 #ifdef FEAT_WINDOWS 5902 wp->w_redr_status = TRUE; 5903 #endif 5904 invalidate_botline_win(wp); 5905 } 5906 5907 #ifdef FEAT_WINDOWS 5908 /* 5909 * Set the width of a window. 5910 */ 5911 void 5912 win_new_width(win_T *wp, int width) 5913 { 5914 wp->w_width = width; 5915 wp->w_lines_valid = 0; 5916 changed_line_abv_curs_win(wp); 5917 invalidate_botline_win(wp); 5918 if (wp == curwin) 5919 { 5920 update_topline(); 5921 curs_columns(TRUE); /* validate w_wrow */ 5922 } 5923 redraw_win_later(wp, NOT_VALID); 5924 wp->w_redr_status = TRUE; 5925 } 5926 #endif 5927 5928 void 5929 win_comp_scroll(win_T *wp) 5930 { 5931 wp->w_p_scr = ((unsigned)wp->w_height >> 1); 5932 if (wp->w_p_scr == 0) 5933 wp->w_p_scr = 1; 5934 } 5935 5936 /* 5937 * command_height: called whenever p_ch has been changed 5938 */ 5939 void 5940 command_height(void) 5941 { 5942 #ifdef FEAT_WINDOWS 5943 int h; 5944 frame_T *frp; 5945 int old_p_ch = curtab->tp_ch_used; 5946 5947 /* Use the value of p_ch that we remembered. This is needed for when the 5948 * GUI starts up, we can't be sure in what order things happen. And when 5949 * p_ch was changed in another tab page. */ 5950 curtab->tp_ch_used = p_ch; 5951 5952 /* Find bottom frame with width of screen. */ 5953 frp = lastwin->w_frame; 5954 while (frp->fr_width != Columns && frp->fr_parent != NULL) 5955 frp = frp->fr_parent; 5956 5957 /* Avoid changing the height of a window with 'winfixheight' set. */ 5958 while (frp->fr_prev != NULL && frp->fr_layout == FR_LEAF 5959 && frp->fr_win->w_p_wfh) 5960 frp = frp->fr_prev; 5961 5962 if (starting != NO_SCREEN) 5963 { 5964 cmdline_row = Rows - p_ch; 5965 5966 if (p_ch > old_p_ch) /* p_ch got bigger */ 5967 { 5968 while (p_ch > old_p_ch) 5969 { 5970 if (frp == NULL) 5971 { 5972 EMSG(_(e_noroom)); 5973 p_ch = old_p_ch; 5974 curtab->tp_ch_used = p_ch; 5975 cmdline_row = Rows - p_ch; 5976 break; 5977 } 5978 h = frp->fr_height - frame_minheight(frp, NULL); 5979 if (h > p_ch - old_p_ch) 5980 h = p_ch - old_p_ch; 5981 old_p_ch += h; 5982 frame_add_height(frp, -h); 5983 frp = frp->fr_prev; 5984 } 5985 5986 /* Recompute window positions. */ 5987 (void)win_comp_pos(); 5988 5989 /* clear the lines added to cmdline */ 5990 if (full_screen) 5991 screen_fill((int)(cmdline_row), (int)Rows, 0, 5992 (int)Columns, ' ', ' ', 0); 5993 msg_row = cmdline_row; 5994 redraw_cmdline = TRUE; 5995 return; 5996 } 5997 5998 if (msg_row < cmdline_row) 5999 msg_row = cmdline_row; 6000 redraw_cmdline = TRUE; 6001 } 6002 frame_add_height(frp, (int)(old_p_ch - p_ch)); 6003 6004 /* Recompute window positions. */ 6005 if (frp != lastwin->w_frame) 6006 (void)win_comp_pos(); 6007 #else 6008 cmdline_row = Rows - p_ch; 6009 win_setheight(cmdline_row); 6010 #endif 6011 } 6012 6013 #if defined(FEAT_WINDOWS) || defined(PROTO) 6014 /* 6015 * Resize frame "frp" to be "n" lines higher (negative for less high). 6016 * Also resize the frames it is contained in. 6017 */ 6018 static void 6019 frame_add_height(frame_T *frp, int n) 6020 { 6021 frame_new_height(frp, frp->fr_height + n, FALSE, FALSE); 6022 for (;;) 6023 { 6024 frp = frp->fr_parent; 6025 if (frp == NULL) 6026 break; 6027 frp->fr_height += n; 6028 } 6029 } 6030 6031 /* 6032 * Add or remove a status line for the bottom window(s), according to the 6033 * value of 'laststatus'. 6034 */ 6035 void 6036 last_status( 6037 int morewin) /* pretend there are two or more windows */ 6038 { 6039 /* Don't make a difference between horizontal or vertical split. */ 6040 last_status_rec(topframe, (p_ls == 2 6041 || (p_ls == 1 && (morewin || !ONE_WINDOW)))); 6042 } 6043 6044 static void 6045 last_status_rec(frame_T *fr, int statusline) 6046 { 6047 frame_T *fp; 6048 win_T *wp; 6049 6050 if (fr->fr_layout == FR_LEAF) 6051 { 6052 wp = fr->fr_win; 6053 if (wp->w_status_height != 0 && !statusline) 6054 { 6055 /* remove status line */ 6056 win_new_height(wp, wp->w_height + 1); 6057 wp->w_status_height = 0; 6058 comp_col(); 6059 } 6060 else if (wp->w_status_height == 0 && statusline) 6061 { 6062 /* Find a frame to take a line from. */ 6063 fp = fr; 6064 while (fp->fr_height <= frame_minheight(fp, NULL)) 6065 { 6066 if (fp == topframe) 6067 { 6068 EMSG(_(e_noroom)); 6069 return; 6070 } 6071 /* In a column of frames: go to frame above. If already at 6072 * the top or in a row of frames: go to parent. */ 6073 if (fp->fr_parent->fr_layout == FR_COL && fp->fr_prev != NULL) 6074 fp = fp->fr_prev; 6075 else 6076 fp = fp->fr_parent; 6077 } 6078 wp->w_status_height = 1; 6079 if (fp != fr) 6080 { 6081 frame_new_height(fp, fp->fr_height - 1, FALSE, FALSE); 6082 frame_fix_height(wp); 6083 (void)win_comp_pos(); 6084 } 6085 else 6086 win_new_height(wp, wp->w_height - 1); 6087 comp_col(); 6088 redraw_all_later(SOME_VALID); 6089 } 6090 } 6091 else if (fr->fr_layout == FR_ROW) 6092 { 6093 /* vertically split windows, set status line for each one */ 6094 for (fp = fr->fr_child; fp != NULL; fp = fp->fr_next) 6095 last_status_rec(fp, statusline); 6096 } 6097 else 6098 { 6099 /* horizontally split window, set status line for last one */ 6100 for (fp = fr->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 6101 ; 6102 last_status_rec(fp, statusline); 6103 } 6104 } 6105 6106 /* 6107 * Return the number of lines used by the tab page line. 6108 */ 6109 int 6110 tabline_height(void) 6111 { 6112 #ifdef FEAT_GUI_TABLINE 6113 /* When the GUI has the tabline then this always returns zero. */ 6114 if (gui_use_tabline()) 6115 return 0; 6116 #endif 6117 switch (p_stal) 6118 { 6119 case 0: return 0; 6120 case 1: return (first_tabpage->tp_next == NULL) ? 0 : 1; 6121 } 6122 return 1; 6123 } 6124 6125 #endif /* FEAT_WINDOWS */ 6126 6127 #if defined(FEAT_SEARCHPATH) || defined(PROTO) 6128 /* 6129 * Get the file name at the cursor. 6130 * If Visual mode is active, use the selected text if it's in one line. 6131 * Returns the name in allocated memory, NULL for failure. 6132 */ 6133 char_u * 6134 grab_file_name(long count, linenr_T *file_lnum) 6135 { 6136 int options = FNAME_MESS|FNAME_EXP|FNAME_REL|FNAME_UNESC; 6137 6138 if (VIsual_active) 6139 { 6140 int len; 6141 char_u *ptr; 6142 6143 if (get_visual_text(NULL, &ptr, &len) == FAIL) 6144 return NULL; 6145 return find_file_name_in_path(ptr, len, options, 6146 count, curbuf->b_ffname); 6147 } 6148 return file_name_at_cursor(options | FNAME_HYP, count, file_lnum); 6149 6150 } 6151 6152 /* 6153 * Return the file name under or after the cursor. 6154 * 6155 * The 'path' option is searched if the file name is not absolute. 6156 * The string returned has been alloc'ed and should be freed by the caller. 6157 * NULL is returned if the file name or file is not found. 6158 * 6159 * options: 6160 * FNAME_MESS give error messages 6161 * FNAME_EXP expand to path 6162 * FNAME_HYP check for hypertext link 6163 * FNAME_INCL apply "includeexpr" 6164 */ 6165 char_u * 6166 file_name_at_cursor(int options, long count, linenr_T *file_lnum) 6167 { 6168 return file_name_in_line(ml_get_curline(), 6169 curwin->w_cursor.col, options, count, curbuf->b_ffname, 6170 file_lnum); 6171 } 6172 6173 /* 6174 * Return the name of the file under or after ptr[col]. 6175 * Otherwise like file_name_at_cursor(). 6176 */ 6177 char_u * 6178 file_name_in_line( 6179 char_u *line, 6180 int col, 6181 int options, 6182 long count, 6183 char_u *rel_fname, /* file we are searching relative to */ 6184 linenr_T *file_lnum) /* line number after the file name */ 6185 { 6186 char_u *ptr; 6187 int len; 6188 6189 /* 6190 * search forward for what could be the start of a file name 6191 */ 6192 ptr = line + col; 6193 while (*ptr != NUL && !vim_isfilec(*ptr)) 6194 MB_PTR_ADV(ptr); 6195 if (*ptr == NUL) /* nothing found */ 6196 { 6197 if (options & FNAME_MESS) 6198 EMSG(_("E446: No file name under cursor")); 6199 return NULL; 6200 } 6201 6202 /* 6203 * Search backward for first char of the file name. 6204 * Go one char back to ":" before "//" even when ':' is not in 'isfname'. 6205 */ 6206 while (ptr > line) 6207 { 6208 #ifdef FEAT_MBYTE 6209 if (has_mbyte && (len = (*mb_head_off)(line, ptr - 1)) > 0) 6210 ptr -= len + 1; 6211 else 6212 #endif 6213 if (vim_isfilec(ptr[-1]) 6214 || ((options & FNAME_HYP) && path_is_url(ptr - 1))) 6215 --ptr; 6216 else 6217 break; 6218 } 6219 6220 /* 6221 * Search forward for the last char of the file name. 6222 * Also allow "://" when ':' is not in 'isfname'. 6223 */ 6224 len = 0; 6225 while (vim_isfilec(ptr[len]) || (ptr[len] == '\\' && ptr[len + 1] == ' ') 6226 || ((options & FNAME_HYP) && path_is_url(ptr + len))) 6227 { 6228 if (ptr[len] == '\\') 6229 /* Skip over the "\" in "\ ". */ 6230 ++len; 6231 #ifdef FEAT_MBYTE 6232 if (has_mbyte) 6233 len += (*mb_ptr2len)(ptr + len); 6234 else 6235 #endif 6236 ++len; 6237 } 6238 6239 /* 6240 * If there is trailing punctuation, remove it. 6241 * But don't remove "..", could be a directory name. 6242 */ 6243 if (len > 2 && vim_strchr((char_u *)".,:;!", ptr[len - 1]) != NULL 6244 && ptr[len - 2] != '.') 6245 --len; 6246 6247 if (file_lnum != NULL) 6248 { 6249 char_u *p; 6250 6251 /* Get the number after the file name and a separator character */ 6252 p = ptr + len; 6253 p = skipwhite(p); 6254 if (*p != NUL) 6255 { 6256 if (!isdigit(*p)) 6257 ++p; /* skip the separator */ 6258 p = skipwhite(p); 6259 if (isdigit(*p)) 6260 *file_lnum = (int)getdigits(&p); 6261 } 6262 } 6263 6264 return find_file_name_in_path(ptr, len, options, count, rel_fname); 6265 } 6266 6267 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6268 static char_u *eval_includeexpr(char_u *ptr, int len); 6269 6270 static char_u * 6271 eval_includeexpr(char_u *ptr, int len) 6272 { 6273 char_u *res; 6274 6275 set_vim_var_string(VV_FNAME, ptr, len); 6276 res = eval_to_string_safe(curbuf->b_p_inex, NULL, 6277 was_set_insecurely((char_u *)"includeexpr", OPT_LOCAL)); 6278 set_vim_var_string(VV_FNAME, NULL, 0); 6279 return res; 6280 } 6281 #endif 6282 6283 /* 6284 * Return the name of the file ptr[len] in 'path'. 6285 * Otherwise like file_name_at_cursor(). 6286 */ 6287 char_u * 6288 find_file_name_in_path( 6289 char_u *ptr, 6290 int len, 6291 int options, 6292 long count, 6293 char_u *rel_fname) /* file we are searching relative to */ 6294 { 6295 char_u *file_name; 6296 int c; 6297 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6298 char_u *tofree = NULL; 6299 6300 if ((options & FNAME_INCL) && *curbuf->b_p_inex != NUL) 6301 { 6302 tofree = eval_includeexpr(ptr, len); 6303 if (tofree != NULL) 6304 { 6305 ptr = tofree; 6306 len = (int)STRLEN(ptr); 6307 } 6308 } 6309 # endif 6310 6311 if (options & FNAME_EXP) 6312 { 6313 file_name = find_file_in_path(ptr, len, options & ~FNAME_MESS, 6314 TRUE, rel_fname); 6315 6316 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6317 /* 6318 * If the file could not be found in a normal way, try applying 6319 * 'includeexpr' (unless done already). 6320 */ 6321 if (file_name == NULL 6322 && !(options & FNAME_INCL) && *curbuf->b_p_inex != NUL) 6323 { 6324 tofree = eval_includeexpr(ptr, len); 6325 if (tofree != NULL) 6326 { 6327 ptr = tofree; 6328 len = (int)STRLEN(ptr); 6329 file_name = find_file_in_path(ptr, len, options & ~FNAME_MESS, 6330 TRUE, rel_fname); 6331 } 6332 } 6333 # endif 6334 if (file_name == NULL && (options & FNAME_MESS)) 6335 { 6336 c = ptr[len]; 6337 ptr[len] = NUL; 6338 EMSG2(_("E447: Can't find file \"%s\" in path"), ptr); 6339 ptr[len] = c; 6340 } 6341 6342 /* Repeat finding the file "count" times. This matters when it 6343 * appears several times in the path. */ 6344 while (file_name != NULL && --count > 0) 6345 { 6346 vim_free(file_name); 6347 file_name = find_file_in_path(ptr, len, options, FALSE, rel_fname); 6348 } 6349 } 6350 else 6351 file_name = vim_strnsave(ptr, len); 6352 6353 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6354 vim_free(tofree); 6355 # endif 6356 6357 return file_name; 6358 } 6359 #endif /* FEAT_SEARCHPATH */ 6360 6361 /* 6362 * Check if the "://" of a URL is at the pointer, return URL_SLASH. 6363 * Also check for ":\\", which MS Internet Explorer accepts, return 6364 * URL_BACKSLASH. 6365 */ 6366 static int 6367 path_is_url(char_u *p) 6368 { 6369 if (STRNCMP(p, "://", (size_t)3) == 0) 6370 return URL_SLASH; 6371 else if (STRNCMP(p, ":\\\\", (size_t)3) == 0) 6372 return URL_BACKSLASH; 6373 return 0; 6374 } 6375 6376 /* 6377 * Check if "fname" starts with "name://". Return URL_SLASH if it does. 6378 * Return URL_BACKSLASH for "name:\\". 6379 * Return zero otherwise. 6380 */ 6381 int 6382 path_with_url(char_u *fname) 6383 { 6384 char_u *p; 6385 6386 for (p = fname; isalpha(*p); ++p) 6387 ; 6388 return path_is_url(p); 6389 } 6390 6391 /* 6392 * Return TRUE if "name" is a full (absolute) path name or URL. 6393 */ 6394 int 6395 vim_isAbsName(char_u *name) 6396 { 6397 return (path_with_url(name) != 0 || mch_isFullName(name)); 6398 } 6399 6400 /* 6401 * Get absolute file name into buffer "buf[len]". 6402 * 6403 * return FAIL for failure, OK otherwise 6404 */ 6405 int 6406 vim_FullName( 6407 char_u *fname, 6408 char_u *buf, 6409 int len, 6410 int force) /* force expansion even when already absolute */ 6411 { 6412 int retval = OK; 6413 int url; 6414 6415 *buf = NUL; 6416 if (fname == NULL) 6417 return FAIL; 6418 6419 url = path_with_url(fname); 6420 if (!url) 6421 retval = mch_FullName(fname, buf, len, force); 6422 if (url || retval == FAIL) 6423 { 6424 /* something failed; use the file name (truncate when too long) */ 6425 vim_strncpy(buf, fname, len - 1); 6426 } 6427 #if defined(MACOS_CLASSIC) || defined(MSWIN) 6428 slash_adjust(buf); 6429 #endif 6430 return retval; 6431 } 6432 6433 /* 6434 * Return the minimal number of rows that is needed on the screen to display 6435 * the current number of windows. 6436 */ 6437 int 6438 min_rows(void) 6439 { 6440 int total; 6441 #ifdef FEAT_WINDOWS 6442 tabpage_T *tp; 6443 int n; 6444 #endif 6445 6446 if (firstwin == NULL) /* not initialized yet */ 6447 return MIN_LINES; 6448 6449 #ifdef FEAT_WINDOWS 6450 total = 0; 6451 FOR_ALL_TABPAGES(tp) 6452 { 6453 n = frame_minheight(tp->tp_topframe, NULL); 6454 if (total < n) 6455 total = n; 6456 } 6457 total += tabline_height(); 6458 #else 6459 total = 1; /* at least one window should have a line! */ 6460 #endif 6461 total += 1; /* count the room for the command line */ 6462 return total; 6463 } 6464 6465 /* 6466 * Return TRUE if there is only one window (in the current tab page), not 6467 * counting a help or preview window, unless it is the current window. 6468 * Does not count "aucmd_win". 6469 */ 6470 int 6471 only_one_window(void) 6472 { 6473 #ifdef FEAT_WINDOWS 6474 int count = 0; 6475 win_T *wp; 6476 6477 /* If there is another tab page there always is another window. */ 6478 if (first_tabpage->tp_next != NULL) 6479 return FALSE; 6480 6481 FOR_ALL_WINDOWS(wp) 6482 if (wp->w_buffer != NULL 6483 && (!((bt_help(wp->w_buffer) && !bt_help(curbuf)) 6484 # ifdef FEAT_QUICKFIX 6485 || wp->w_p_pvw 6486 # endif 6487 ) || wp == curwin) 6488 # ifdef FEAT_AUTOCMD 6489 && wp != aucmd_win 6490 # endif 6491 ) 6492 ++count; 6493 return (count <= 1); 6494 #else 6495 return TRUE; 6496 #endif 6497 } 6498 6499 #if defined(FEAT_WINDOWS) || defined(FEAT_AUTOCMD) || defined(PROTO) 6500 /* 6501 * Correct the cursor line number in other windows. Used after changing the 6502 * current buffer, and before applying autocommands. 6503 * When "do_curwin" is TRUE, also check current window. 6504 */ 6505 void 6506 check_lnums(int do_curwin) 6507 { 6508 win_T *wp; 6509 6510 #ifdef FEAT_WINDOWS 6511 tabpage_T *tp; 6512 6513 FOR_ALL_TAB_WINDOWS(tp, wp) 6514 if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) 6515 #else 6516 wp = curwin; 6517 if (do_curwin) 6518 #endif 6519 { 6520 if (wp->w_cursor.lnum > curbuf->b_ml.ml_line_count) 6521 wp->w_cursor.lnum = curbuf->b_ml.ml_line_count; 6522 if (wp->w_topline > curbuf->b_ml.ml_line_count) 6523 wp->w_topline = curbuf->b_ml.ml_line_count; 6524 } 6525 } 6526 #endif 6527 6528 #if defined(FEAT_WINDOWS) || defined(PROTO) 6529 6530 /* 6531 * A snapshot of the window sizes, to restore them after closing the help 6532 * window. 6533 * Only these fields are used: 6534 * fr_layout 6535 * fr_width 6536 * fr_height 6537 * fr_next 6538 * fr_child 6539 * fr_win (only valid for the old curwin, NULL otherwise) 6540 */ 6541 6542 /* 6543 * Create a snapshot of the current frame sizes. 6544 */ 6545 void 6546 make_snapshot(int idx) 6547 { 6548 clear_snapshot(curtab, idx); 6549 make_snapshot_rec(topframe, &curtab->tp_snapshot[idx]); 6550 } 6551 6552 static void 6553 make_snapshot_rec(frame_T *fr, frame_T **frp) 6554 { 6555 *frp = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); 6556 if (*frp == NULL) 6557 return; 6558 (*frp)->fr_layout = fr->fr_layout; 6559 (*frp)->fr_width = fr->fr_width; 6560 (*frp)->fr_height = fr->fr_height; 6561 if (fr->fr_next != NULL) 6562 make_snapshot_rec(fr->fr_next, &((*frp)->fr_next)); 6563 if (fr->fr_child != NULL) 6564 make_snapshot_rec(fr->fr_child, &((*frp)->fr_child)); 6565 if (fr->fr_layout == FR_LEAF && fr->fr_win == curwin) 6566 (*frp)->fr_win = curwin; 6567 } 6568 6569 /* 6570 * Remove any existing snapshot. 6571 */ 6572 static void 6573 clear_snapshot(tabpage_T *tp, int idx) 6574 { 6575 clear_snapshot_rec(tp->tp_snapshot[idx]); 6576 tp->tp_snapshot[idx] = NULL; 6577 } 6578 6579 static void 6580 clear_snapshot_rec(frame_T *fr) 6581 { 6582 if (fr != NULL) 6583 { 6584 clear_snapshot_rec(fr->fr_next); 6585 clear_snapshot_rec(fr->fr_child); 6586 vim_free(fr); 6587 } 6588 } 6589 6590 /* 6591 * Restore a previously created snapshot, if there is any. 6592 * This is only done if the screen size didn't change and the window layout is 6593 * still the same. 6594 */ 6595 void 6596 restore_snapshot( 6597 int idx, 6598 int close_curwin) /* closing current window */ 6599 { 6600 win_T *wp; 6601 6602 if (curtab->tp_snapshot[idx] != NULL 6603 && curtab->tp_snapshot[idx]->fr_width == topframe->fr_width 6604 && curtab->tp_snapshot[idx]->fr_height == topframe->fr_height 6605 && check_snapshot_rec(curtab->tp_snapshot[idx], topframe) == OK) 6606 { 6607 wp = restore_snapshot_rec(curtab->tp_snapshot[idx], topframe); 6608 win_comp_pos(); 6609 if (wp != NULL && close_curwin) 6610 win_goto(wp); 6611 redraw_all_later(CLEAR); 6612 } 6613 clear_snapshot(curtab, idx); 6614 } 6615 6616 /* 6617 * Check if frames "sn" and "fr" have the same layout, same following frames 6618 * and same children. And the window pointer is valid. 6619 */ 6620 static int 6621 check_snapshot_rec(frame_T *sn, frame_T *fr) 6622 { 6623 if (sn->fr_layout != fr->fr_layout 6624 || (sn->fr_next == NULL) != (fr->fr_next == NULL) 6625 || (sn->fr_child == NULL) != (fr->fr_child == NULL) 6626 || (sn->fr_next != NULL 6627 && check_snapshot_rec(sn->fr_next, fr->fr_next) == FAIL) 6628 || (sn->fr_child != NULL 6629 && check_snapshot_rec(sn->fr_child, fr->fr_child) == FAIL) 6630 || (sn->fr_win != NULL && !win_valid(sn->fr_win))) 6631 return FAIL; 6632 return OK; 6633 } 6634 6635 /* 6636 * Copy the size of snapshot frame "sn" to frame "fr". Do the same for all 6637 * following frames and children. 6638 * Returns a pointer to the old current window, or NULL. 6639 */ 6640 static win_T * 6641 restore_snapshot_rec(frame_T *sn, frame_T *fr) 6642 { 6643 win_T *wp = NULL; 6644 win_T *wp2; 6645 6646 fr->fr_height = sn->fr_height; 6647 fr->fr_width = sn->fr_width; 6648 if (fr->fr_layout == FR_LEAF) 6649 { 6650 frame_new_height(fr, fr->fr_height, FALSE, FALSE); 6651 frame_new_width(fr, fr->fr_width, FALSE, FALSE); 6652 wp = sn->fr_win; 6653 } 6654 if (sn->fr_next != NULL) 6655 { 6656 wp2 = restore_snapshot_rec(sn->fr_next, fr->fr_next); 6657 if (wp2 != NULL) 6658 wp = wp2; 6659 } 6660 if (sn->fr_child != NULL) 6661 { 6662 wp2 = restore_snapshot_rec(sn->fr_child, fr->fr_child); 6663 if (wp2 != NULL) 6664 wp = wp2; 6665 } 6666 return wp; 6667 } 6668 6669 #endif 6670 6671 #if defined(FEAT_EVAL) || defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) \ 6672 || defined(PROTO) 6673 /* 6674 * Set "win" to be the curwin and "tp" to be the current tab page. 6675 * restore_win() MUST be called to undo, also when FAIL is returned. 6676 * No autocommands will be executed until restore_win() is called. 6677 * When "no_display" is TRUE the display won't be affected, no redraw is 6678 * triggered, another tabpage access is limited. 6679 * Returns FAIL if switching to "win" failed. 6680 */ 6681 int 6682 switch_win( 6683 win_T **save_curwin UNUSED, 6684 tabpage_T **save_curtab UNUSED, 6685 win_T *win UNUSED, 6686 tabpage_T *tp UNUSED, 6687 int no_display UNUSED) 6688 { 6689 # ifdef FEAT_AUTOCMD 6690 block_autocmds(); 6691 # endif 6692 # ifdef FEAT_WINDOWS 6693 *save_curwin = curwin; 6694 if (tp != NULL) 6695 { 6696 *save_curtab = curtab; 6697 if (no_display) 6698 { 6699 curtab->tp_firstwin = firstwin; 6700 curtab->tp_lastwin = lastwin; 6701 curtab = tp; 6702 firstwin = curtab->tp_firstwin; 6703 lastwin = curtab->tp_lastwin; 6704 } 6705 else 6706 goto_tabpage_tp(tp, FALSE, FALSE); 6707 } 6708 if (!win_valid(win)) 6709 return FAIL; 6710 curwin = win; 6711 curbuf = curwin->w_buffer; 6712 # endif 6713 return OK; 6714 } 6715 6716 /* 6717 * Restore current tabpage and window saved by switch_win(), if still valid. 6718 * When "no_display" is TRUE the display won't be affected, no redraw is 6719 * triggered. 6720 */ 6721 void 6722 restore_win( 6723 win_T *save_curwin UNUSED, 6724 tabpage_T *save_curtab UNUSED, 6725 int no_display UNUSED) 6726 { 6727 # ifdef FEAT_WINDOWS 6728 if (save_curtab != NULL && valid_tabpage(save_curtab)) 6729 { 6730 if (no_display) 6731 { 6732 curtab->tp_firstwin = firstwin; 6733 curtab->tp_lastwin = lastwin; 6734 curtab = save_curtab; 6735 firstwin = curtab->tp_firstwin; 6736 lastwin = curtab->tp_lastwin; 6737 } 6738 else 6739 goto_tabpage_tp(save_curtab, FALSE, FALSE); 6740 } 6741 if (win_valid(save_curwin)) 6742 { 6743 curwin = save_curwin; 6744 curbuf = curwin->w_buffer; 6745 } 6746 # endif 6747 # ifdef FEAT_AUTOCMD 6748 unblock_autocmds(); 6749 # endif 6750 } 6751 6752 /* 6753 * Make "buf" the current buffer. restore_buffer() MUST be called to undo. 6754 * No autocommands will be executed. Use aucmd_prepbuf() if there are any. 6755 */ 6756 void 6757 switch_buffer(bufref_T *save_curbuf, buf_T *buf) 6758 { 6759 # ifdef FEAT_AUTOCMD 6760 block_autocmds(); 6761 # endif 6762 set_bufref(save_curbuf, curbuf); 6763 --curbuf->b_nwindows; 6764 curbuf = buf; 6765 curwin->w_buffer = buf; 6766 ++curbuf->b_nwindows; 6767 } 6768 6769 /* 6770 * Restore the current buffer after using switch_buffer(). 6771 */ 6772 void 6773 restore_buffer(bufref_T *save_curbuf) 6774 { 6775 # ifdef FEAT_AUTOCMD 6776 unblock_autocmds(); 6777 # endif 6778 /* Check for valid buffer, just in case. */ 6779 if (bufref_valid(save_curbuf)) 6780 { 6781 --curbuf->b_nwindows; 6782 curwin->w_buffer = save_curbuf->br_buf; 6783 curbuf = save_curbuf->br_buf; 6784 ++curbuf->b_nwindows; 6785 } 6786 } 6787 #endif 6788 6789 #if (defined(FEAT_GUI) && defined(FEAT_WINDOWS)) || defined(PROTO) 6790 /* 6791 * Return TRUE if there is any vertically split window. 6792 */ 6793 int 6794 win_hasvertsplit(void) 6795 { 6796 frame_T *fr; 6797 6798 if (topframe->fr_layout == FR_ROW) 6799 return TRUE; 6800 6801 if (topframe->fr_layout == FR_COL) 6802 for (fr = topframe->fr_child; fr != NULL; fr = fr->fr_next) 6803 if (fr->fr_layout == FR_ROW) 6804 return TRUE; 6805 6806 return FALSE; 6807 } 6808 #endif 6809 6810 #if defined(FEAT_SEARCH_EXTRA) || defined(PROTO) 6811 /* 6812 * Add match to the match list of window 'wp'. The pattern 'pat' will be 6813 * highlighted with the group 'grp' with priority 'prio'. 6814 * Optionally, a desired ID 'id' can be specified (greater than or equal to 1). 6815 * If no particular ID is desired, -1 must be specified for 'id'. 6816 * Return ID of added match, -1 on failure. 6817 */ 6818 int 6819 match_add( 6820 win_T *wp, 6821 char_u *grp, 6822 char_u *pat, 6823 int prio, 6824 int id, 6825 list_T *pos_list, 6826 char_u *conceal_char UNUSED) /* pointer to conceal replacement char */ 6827 { 6828 matchitem_T *cur; 6829 matchitem_T *prev; 6830 matchitem_T *m; 6831 int hlg_id; 6832 regprog_T *regprog = NULL; 6833 int rtype = SOME_VALID; 6834 6835 if (*grp == NUL || (pat != NULL && *pat == NUL)) 6836 return -1; 6837 if (id < -1 || id == 0) 6838 { 6839 EMSGN(_("E799: Invalid ID: %ld (must be greater than or equal to 1)"), id); 6840 return -1; 6841 } 6842 if (id != -1) 6843 { 6844 cur = wp->w_match_head; 6845 while (cur != NULL) 6846 { 6847 if (cur->id == id) 6848 { 6849 EMSGN(_("E801: ID already taken: %ld"), id); 6850 return -1; 6851 } 6852 cur = cur->next; 6853 } 6854 } 6855 if ((hlg_id = syn_namen2id(grp, (int)STRLEN(grp))) == 0) 6856 { 6857 EMSG2(_(e_nogroup), grp); 6858 return -1; 6859 } 6860 if (pat != NULL && (regprog = vim_regcomp(pat, RE_MAGIC)) == NULL) 6861 { 6862 EMSG2(_(e_invarg2), pat); 6863 return -1; 6864 } 6865 6866 /* Find available match ID. */ 6867 while (id == -1) 6868 { 6869 cur = wp->w_match_head; 6870 while (cur != NULL && cur->id != wp->w_next_match_id) 6871 cur = cur->next; 6872 if (cur == NULL) 6873 id = wp->w_next_match_id; 6874 wp->w_next_match_id++; 6875 } 6876 6877 /* Build new match. */ 6878 m = (matchitem_T *)alloc_clear(sizeof(matchitem_T)); 6879 m->id = id; 6880 m->priority = prio; 6881 m->pattern = pat == NULL ? NULL : vim_strsave(pat); 6882 m->hlg_id = hlg_id; 6883 m->match.regprog = regprog; 6884 m->match.rmm_ic = FALSE; 6885 m->match.rmm_maxcol = 0; 6886 # if defined(FEAT_CONCEAL) && defined(FEAT_MBYTE) 6887 m->conceal_char = 0; 6888 if (conceal_char != NULL) 6889 m->conceal_char = (*mb_ptr2char)(conceal_char); 6890 # endif 6891 6892 /* Set up position matches */ 6893 if (pos_list != NULL) 6894 { 6895 linenr_T toplnum = 0; 6896 linenr_T botlnum = 0; 6897 listitem_T *li; 6898 int i; 6899 6900 for (i = 0, li = pos_list->lv_first; li != NULL && i < MAXPOSMATCH; 6901 i++, li = li->li_next) 6902 { 6903 linenr_T lnum = 0; 6904 colnr_T col = 0; 6905 int len = 1; 6906 list_T *subl; 6907 listitem_T *subli; 6908 int error = FALSE; 6909 6910 if (li->li_tv.v_type == VAR_LIST) 6911 { 6912 subl = li->li_tv.vval.v_list; 6913 if (subl == NULL) 6914 goto fail; 6915 subli = subl->lv_first; 6916 if (subli == NULL) 6917 goto fail; 6918 lnum = get_tv_number_chk(&subli->li_tv, &error); 6919 if (error == TRUE) 6920 goto fail; 6921 if (lnum == 0) 6922 { 6923 --i; 6924 continue; 6925 } 6926 m->pos.pos[i].lnum = lnum; 6927 subli = subli->li_next; 6928 if (subli != NULL) 6929 { 6930 col = get_tv_number_chk(&subli->li_tv, &error); 6931 if (error == TRUE) 6932 goto fail; 6933 subli = subli->li_next; 6934 if (subli != NULL) 6935 { 6936 len = get_tv_number_chk(&subli->li_tv, &error); 6937 if (error == TRUE) 6938 goto fail; 6939 } 6940 } 6941 m->pos.pos[i].col = col; 6942 m->pos.pos[i].len = len; 6943 } 6944 else if (li->li_tv.v_type == VAR_NUMBER) 6945 { 6946 if (li->li_tv.vval.v_number == 0) 6947 { 6948 --i; 6949 continue; 6950 } 6951 m->pos.pos[i].lnum = li->li_tv.vval.v_number; 6952 m->pos.pos[i].col = 0; 6953 m->pos.pos[i].len = 0; 6954 } 6955 else 6956 { 6957 EMSG(_("List or number required")); 6958 goto fail; 6959 } 6960 if (toplnum == 0 || lnum < toplnum) 6961 toplnum = lnum; 6962 if (botlnum == 0 || lnum >= botlnum) 6963 botlnum = lnum + 1; 6964 } 6965 6966 /* Calculate top and bottom lines for redrawing area */ 6967 if (toplnum != 0) 6968 { 6969 if (wp->w_buffer->b_mod_set) 6970 { 6971 if (wp->w_buffer->b_mod_top > toplnum) 6972 wp->w_buffer->b_mod_top = toplnum; 6973 if (wp->w_buffer->b_mod_bot < botlnum) 6974 wp->w_buffer->b_mod_bot = botlnum; 6975 } 6976 else 6977 { 6978 wp->w_buffer->b_mod_set = TRUE; 6979 wp->w_buffer->b_mod_top = toplnum; 6980 wp->w_buffer->b_mod_bot = botlnum; 6981 wp->w_buffer->b_mod_xlines = 0; 6982 } 6983 m->pos.toplnum = toplnum; 6984 m->pos.botlnum = botlnum; 6985 rtype = VALID; 6986 } 6987 } 6988 6989 /* Insert new match. The match list is in ascending order with regard to 6990 * the match priorities. */ 6991 cur = wp->w_match_head; 6992 prev = cur; 6993 while (cur != NULL && prio >= cur->priority) 6994 { 6995 prev = cur; 6996 cur = cur->next; 6997 } 6998 if (cur == prev) 6999 wp->w_match_head = m; 7000 else 7001 prev->next = m; 7002 m->next = cur; 7003 7004 redraw_later(rtype); 7005 return id; 7006 7007 fail: 7008 vim_free(m); 7009 return -1; 7010 } 7011 7012 /* 7013 * Delete match with ID 'id' in the match list of window 'wp'. 7014 * Print error messages if 'perr' is TRUE. 7015 */ 7016 int 7017 match_delete(win_T *wp, int id, int perr) 7018 { 7019 matchitem_T *cur = wp->w_match_head; 7020 matchitem_T *prev = cur; 7021 int rtype = SOME_VALID; 7022 7023 if (id < 1) 7024 { 7025 if (perr == TRUE) 7026 EMSGN(_("E802: Invalid ID: %ld (must be greater than or equal to 1)"), 7027 id); 7028 return -1; 7029 } 7030 while (cur != NULL && cur->id != id) 7031 { 7032 prev = cur; 7033 cur = cur->next; 7034 } 7035 if (cur == NULL) 7036 { 7037 if (perr == TRUE) 7038 EMSGN(_("E803: ID not found: %ld"), id); 7039 return -1; 7040 } 7041 if (cur == prev) 7042 wp->w_match_head = cur->next; 7043 else 7044 prev->next = cur->next; 7045 vim_regfree(cur->match.regprog); 7046 vim_free(cur->pattern); 7047 if (cur->pos.toplnum != 0) 7048 { 7049 if (wp->w_buffer->b_mod_set) 7050 { 7051 if (wp->w_buffer->b_mod_top > cur->pos.toplnum) 7052 wp->w_buffer->b_mod_top = cur->pos.toplnum; 7053 if (wp->w_buffer->b_mod_bot < cur->pos.botlnum) 7054 wp->w_buffer->b_mod_bot = cur->pos.botlnum; 7055 } 7056 else 7057 { 7058 wp->w_buffer->b_mod_set = TRUE; 7059 wp->w_buffer->b_mod_top = cur->pos.toplnum; 7060 wp->w_buffer->b_mod_bot = cur->pos.botlnum; 7061 wp->w_buffer->b_mod_xlines = 0; 7062 } 7063 rtype = VALID; 7064 } 7065 vim_free(cur); 7066 redraw_later(rtype); 7067 return 0; 7068 } 7069 7070 /* 7071 * Delete all matches in the match list of window 'wp'. 7072 */ 7073 void 7074 clear_matches(win_T *wp) 7075 { 7076 matchitem_T *m; 7077 7078 while (wp->w_match_head != NULL) 7079 { 7080 m = wp->w_match_head->next; 7081 vim_regfree(wp->w_match_head->match.regprog); 7082 vim_free(wp->w_match_head->pattern); 7083 vim_free(wp->w_match_head); 7084 wp->w_match_head = m; 7085 } 7086 redraw_later(SOME_VALID); 7087 } 7088 7089 /* 7090 * Get match from ID 'id' in window 'wp'. 7091 * Return NULL if match not found. 7092 */ 7093 matchitem_T * 7094 get_match(win_T *wp, int id) 7095 { 7096 matchitem_T *cur = wp->w_match_head; 7097 7098 while (cur != NULL && cur->id != id) 7099 cur = cur->next; 7100 return cur; 7101 } 7102 #endif 7103 7104 #if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO) 7105 int 7106 get_win_number(win_T *wp, win_T *first_win) 7107 { 7108 int i = 1; 7109 win_T *w; 7110 7111 for (w = first_win; w != NULL && w != wp; w = W_NEXT(w)) 7112 ++i; 7113 7114 if (w == NULL) 7115 return 0; 7116 else 7117 return i; 7118 } 7119 7120 int 7121 get_tab_number(tabpage_T *tp UNUSED) 7122 { 7123 int i = 1; 7124 # ifdef FEAT_WINDOWS 7125 tabpage_T *t; 7126 7127 for (t = first_tabpage; t != NULL && t != tp; t = t->tp_next) 7128 ++i; 7129 7130 if (t == NULL) 7131 return 0; 7132 else 7133 # endif 7134 return i; 7135 } 7136 #endif 7137 7138 #if defined(FEAT_WINDOWS) || defined(PROTO) 7139 /* 7140 * Return TRUE if "topfrp" and its children are at the right height. 7141 */ 7142 static int 7143 frame_check_height(frame_T *topfrp, int height) 7144 { 7145 frame_T *frp; 7146 7147 if (topfrp->fr_height != height) 7148 return FALSE; 7149 7150 if (topfrp->fr_layout == FR_ROW) 7151 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 7152 if (frp->fr_height != height) 7153 return FALSE; 7154 7155 return TRUE; 7156 } 7157 #endif 7158 7159 #if defined(FEAT_WINDOWS) || defined(PROTO) 7160 /* 7161 * Return TRUE if "topfrp" and its children are at the right width. 7162 */ 7163 static int 7164 frame_check_width(frame_T *topfrp, int width) 7165 { 7166 frame_T *frp; 7167 7168 if (topfrp->fr_width != width) 7169 return FALSE; 7170 7171 if (topfrp->fr_layout == FR_COL) 7172 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 7173 if (frp->fr_width != width) 7174 return FALSE; 7175 7176 return TRUE; 7177 } 7178 #endif 7179 7180 #if defined(FEAT_EVAL) || defined(PROTO) 7181 int 7182 win_getid(typval_T *argvars) 7183 { 7184 int winnr; 7185 win_T *wp; 7186 7187 if (argvars[0].v_type == VAR_UNKNOWN) 7188 return curwin->w_id; 7189 winnr = get_tv_number(&argvars[0]); 7190 if (winnr > 0) 7191 { 7192 if (argvars[1].v_type == VAR_UNKNOWN) 7193 wp = firstwin; 7194 else 7195 { 7196 tabpage_T *tp; 7197 int tabnr = get_tv_number(&argvars[1]); 7198 7199 FOR_ALL_TABPAGES(tp) 7200 if (--tabnr == 0) 7201 break; 7202 if (tp == NULL) 7203 return -1; 7204 if (tp == curtab) 7205 wp = firstwin; 7206 else 7207 wp = tp->tp_firstwin; 7208 } 7209 for ( ; wp != NULL; wp = wp->w_next) 7210 if (--winnr == 0) 7211 return wp->w_id; 7212 } 7213 return 0; 7214 } 7215 7216 int 7217 win_gotoid(typval_T *argvars) 7218 { 7219 win_T *wp; 7220 tabpage_T *tp; 7221 int id = get_tv_number(&argvars[0]); 7222 7223 FOR_ALL_TAB_WINDOWS(tp, wp) 7224 if (wp->w_id == id) 7225 { 7226 goto_tabpage_win(tp, wp); 7227 return 1; 7228 } 7229 return 0; 7230 } 7231 7232 void 7233 win_id2tabwin(typval_T *argvars, list_T *list) 7234 { 7235 win_T *wp; 7236 tabpage_T *tp; 7237 int winnr = 1; 7238 int tabnr = 1; 7239 int id = get_tv_number(&argvars[0]); 7240 7241 FOR_ALL_TABPAGES(tp) 7242 { 7243 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 7244 { 7245 if (wp->w_id == id) 7246 { 7247 list_append_number(list, tabnr); 7248 list_append_number(list, winnr); 7249 return; 7250 } 7251 ++winnr; 7252 } 7253 ++tabnr; 7254 winnr = 1; 7255 } 7256 list_append_number(list, 0); 7257 list_append_number(list, 0); 7258 } 7259 7260 win_T * 7261 win_id2wp(typval_T *argvars) 7262 { 7263 win_T *wp; 7264 tabpage_T *tp; 7265 int id = get_tv_number(&argvars[0]); 7266 7267 FOR_ALL_TAB_WINDOWS(tp, wp) 7268 if (wp->w_id == id) 7269 return wp; 7270 7271 return NULL; 7272 } 7273 7274 int 7275 win_id2win(typval_T *argvars) 7276 { 7277 win_T *wp; 7278 int nr = 1; 7279 int id = get_tv_number(&argvars[0]); 7280 7281 FOR_ALL_WINDOWS(wp) 7282 { 7283 if (wp->w_id == id) 7284 return nr; 7285 ++nr; 7286 } 7287 return 0; 7288 } 7289 7290 void 7291 win_findbuf(typval_T *argvars, list_T *list) 7292 { 7293 win_T *wp; 7294 tabpage_T *tp; 7295 int bufnr = get_tv_number(&argvars[0]); 7296 7297 FOR_ALL_TAB_WINDOWS(tp, wp) 7298 if (wp->w_buffer->b_fnum == bufnr) 7299 list_append_number(list, wp->w_id); 7300 } 7301 7302 #endif 7303