1 /* vi:set ts=8 sts=4 sw=4: 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 (firstwin == lastwin && 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 (lastwin == firstwin && 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. */ 874 if (oldwin->w_p_wfw) 875 win_setwidth_win(oldwin->w_width + new_size, 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. 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 * Return the number of windows. 1378 */ 1379 int 1380 win_count(void) 1381 { 1382 win_T *wp; 1383 int count = 0; 1384 1385 FOR_ALL_WINDOWS(wp) 1386 ++count; 1387 return count; 1388 } 1389 1390 /* 1391 * Make "count" windows on the screen. 1392 * Return actual number of windows on the screen. 1393 * Must be called when there is just one window, filling the whole screen 1394 * (excluding the command line). 1395 */ 1396 int 1397 make_windows( 1398 int count, 1399 int vertical UNUSED) /* split windows vertically if TRUE */ 1400 { 1401 int maxcount; 1402 int todo; 1403 1404 if (vertical) 1405 { 1406 /* Each windows needs at least 'winminwidth' lines and a separator 1407 * column. */ 1408 maxcount = (curwin->w_width + curwin->w_vsep_width 1409 - (p_wiw - p_wmw)) / (p_wmw + 1); 1410 } 1411 else 1412 { 1413 /* Each window needs at least 'winminheight' lines and a status line. */ 1414 maxcount = (curwin->w_height + curwin->w_status_height 1415 - (p_wh - p_wmh)) / (p_wmh + STATUS_HEIGHT); 1416 } 1417 1418 if (maxcount < 2) 1419 maxcount = 2; 1420 if (count > maxcount) 1421 count = maxcount; 1422 1423 /* 1424 * add status line now, otherwise first window will be too big 1425 */ 1426 if (count > 1) 1427 last_status(TRUE); 1428 1429 #ifdef FEAT_AUTOCMD 1430 /* 1431 * Don't execute autocommands while creating the windows. Must do that 1432 * when putting the buffers in the windows. 1433 */ 1434 block_autocmds(); 1435 #endif 1436 1437 /* todo is number of windows left to create */ 1438 for (todo = count - 1; todo > 0; --todo) 1439 if (vertical) 1440 { 1441 if (win_split(curwin->w_width - (curwin->w_width - todo) 1442 / (todo + 1) - 1, WSP_VERT | WSP_ABOVE) == FAIL) 1443 break; 1444 } 1445 else 1446 { 1447 if (win_split(curwin->w_height - (curwin->w_height - todo 1448 * STATUS_HEIGHT) / (todo + 1) 1449 - STATUS_HEIGHT, WSP_ABOVE) == FAIL) 1450 break; 1451 } 1452 1453 #ifdef FEAT_AUTOCMD 1454 unblock_autocmds(); 1455 #endif 1456 1457 /* return actual number of windows */ 1458 return (count - todo); 1459 } 1460 1461 /* 1462 * Exchange current and next window 1463 */ 1464 static void 1465 win_exchange(long Prenum) 1466 { 1467 frame_T *frp; 1468 frame_T *frp2; 1469 win_T *wp; 1470 win_T *wp2; 1471 int temp; 1472 1473 if (lastwin == firstwin) /* just one window */ 1474 { 1475 beep_flush(); 1476 return; 1477 } 1478 1479 #ifdef FEAT_GUI 1480 need_mouse_correct = TRUE; 1481 #endif 1482 1483 /* 1484 * find window to exchange with 1485 */ 1486 if (Prenum) 1487 { 1488 frp = curwin->w_frame->fr_parent->fr_child; 1489 while (frp != NULL && --Prenum > 0) 1490 frp = frp->fr_next; 1491 } 1492 else if (curwin->w_frame->fr_next != NULL) /* Swap with next */ 1493 frp = curwin->w_frame->fr_next; 1494 else /* Swap last window in row/col with previous */ 1495 frp = curwin->w_frame->fr_prev; 1496 1497 /* We can only exchange a window with another window, not with a frame 1498 * containing windows. */ 1499 if (frp == NULL || frp->fr_win == NULL || frp->fr_win == curwin) 1500 return; 1501 wp = frp->fr_win; 1502 1503 /* 1504 * 1. remove curwin from the list. Remember after which window it was in wp2 1505 * 2. insert curwin before wp in the list 1506 * if wp != wp2 1507 * 3. remove wp from the list 1508 * 4. insert wp after wp2 1509 * 5. exchange the status line height and vsep width. 1510 */ 1511 wp2 = curwin->w_prev; 1512 frp2 = curwin->w_frame->fr_prev; 1513 if (wp->w_prev != curwin) 1514 { 1515 win_remove(curwin, NULL); 1516 frame_remove(curwin->w_frame); 1517 win_append(wp->w_prev, curwin); 1518 frame_insert(frp, curwin->w_frame); 1519 } 1520 if (wp != wp2) 1521 { 1522 win_remove(wp, NULL); 1523 frame_remove(wp->w_frame); 1524 win_append(wp2, wp); 1525 if (frp2 == NULL) 1526 frame_insert(wp->w_frame->fr_parent->fr_child, wp->w_frame); 1527 else 1528 frame_append(frp2, wp->w_frame); 1529 } 1530 temp = curwin->w_status_height; 1531 curwin->w_status_height = wp->w_status_height; 1532 wp->w_status_height = temp; 1533 temp = curwin->w_vsep_width; 1534 curwin->w_vsep_width = wp->w_vsep_width; 1535 wp->w_vsep_width = temp; 1536 1537 /* If the windows are not in the same frame, exchange the sizes to avoid 1538 * messing up the window layout. Otherwise fix the frame sizes. */ 1539 if (curwin->w_frame->fr_parent != wp->w_frame->fr_parent) 1540 { 1541 temp = curwin->w_height; 1542 curwin->w_height = wp->w_height; 1543 wp->w_height = temp; 1544 temp = curwin->w_width; 1545 curwin->w_width = wp->w_width; 1546 wp->w_width = temp; 1547 } 1548 else 1549 { 1550 frame_fix_height(curwin); 1551 frame_fix_height(wp); 1552 frame_fix_width(curwin); 1553 frame_fix_width(wp); 1554 } 1555 1556 (void)win_comp_pos(); /* recompute window positions */ 1557 1558 win_enter(wp, TRUE); 1559 redraw_later(CLEAR); 1560 } 1561 1562 /* 1563 * rotate windows: if upwards TRUE the second window becomes the first one 1564 * if upwards FALSE the first window becomes the second one 1565 */ 1566 static void 1567 win_rotate(int upwards, int count) 1568 { 1569 win_T *wp1; 1570 win_T *wp2; 1571 frame_T *frp; 1572 int n; 1573 1574 if (firstwin == lastwin) /* nothing to do */ 1575 { 1576 beep_flush(); 1577 return; 1578 } 1579 1580 #ifdef FEAT_GUI 1581 need_mouse_correct = TRUE; 1582 #endif 1583 1584 /* Check if all frames in this row/col have one window. */ 1585 for (frp = curwin->w_frame->fr_parent->fr_child; frp != NULL; 1586 frp = frp->fr_next) 1587 if (frp->fr_win == NULL) 1588 { 1589 EMSG(_("E443: Cannot rotate when another window is split")); 1590 return; 1591 } 1592 1593 while (count--) 1594 { 1595 if (upwards) /* first window becomes last window */ 1596 { 1597 /* remove first window/frame from the list */ 1598 frp = curwin->w_frame->fr_parent->fr_child; 1599 wp1 = frp->fr_win; 1600 win_remove(wp1, NULL); 1601 frame_remove(frp); 1602 1603 /* find last frame and append removed window/frame after it */ 1604 for ( ; frp->fr_next != NULL; frp = frp->fr_next) 1605 ; 1606 win_append(frp->fr_win, wp1); 1607 frame_append(frp, wp1->w_frame); 1608 1609 wp2 = frp->fr_win; /* previously last window */ 1610 } 1611 else /* last window becomes first window */ 1612 { 1613 /* find last window/frame in the list and remove it */ 1614 for (frp = curwin->w_frame; frp->fr_next != NULL; 1615 frp = frp->fr_next) 1616 ; 1617 wp1 = frp->fr_win; 1618 wp2 = wp1->w_prev; /* will become last window */ 1619 win_remove(wp1, NULL); 1620 frame_remove(frp); 1621 1622 /* append the removed window/frame before the first in the list */ 1623 win_append(frp->fr_parent->fr_child->fr_win->w_prev, wp1); 1624 frame_insert(frp->fr_parent->fr_child, frp); 1625 } 1626 1627 /* exchange status height and vsep width of old and new last window */ 1628 n = wp2->w_status_height; 1629 wp2->w_status_height = wp1->w_status_height; 1630 wp1->w_status_height = n; 1631 frame_fix_height(wp1); 1632 frame_fix_height(wp2); 1633 n = wp2->w_vsep_width; 1634 wp2->w_vsep_width = wp1->w_vsep_width; 1635 wp1->w_vsep_width = n; 1636 frame_fix_width(wp1); 1637 frame_fix_width(wp2); 1638 1639 /* recompute w_winrow and w_wincol for all windows */ 1640 (void)win_comp_pos(); 1641 } 1642 1643 redraw_later(CLEAR); 1644 } 1645 1646 /* 1647 * Move the current window to the very top/bottom/left/right of the screen. 1648 */ 1649 static void 1650 win_totop(int size, int flags) 1651 { 1652 int dir; 1653 int height = curwin->w_height; 1654 1655 if (lastwin == firstwin) 1656 { 1657 beep_flush(); 1658 return; 1659 } 1660 1661 /* Remove the window and frame from the tree of frames. */ 1662 (void)winframe_remove(curwin, &dir, NULL); 1663 win_remove(curwin, NULL); 1664 last_status(FALSE); /* may need to remove last status line */ 1665 (void)win_comp_pos(); /* recompute window positions */ 1666 1667 /* Split a window on the desired side and put the window there. */ 1668 (void)win_split_ins(size, flags, curwin, dir); 1669 if (!(flags & WSP_VERT)) 1670 { 1671 win_setheight(height); 1672 if (p_ea) 1673 win_equal(curwin, TRUE, 'v'); 1674 } 1675 1676 #if defined(FEAT_GUI) 1677 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 1678 * scrollbars. Have to update them anyway. */ 1679 gui_may_update_scrollbars(); 1680 #endif 1681 } 1682 1683 /* 1684 * Move window "win1" to below/right of "win2" and make "win1" the current 1685 * window. Only works within the same frame! 1686 */ 1687 void 1688 win_move_after(win_T *win1, win_T *win2) 1689 { 1690 int height; 1691 1692 /* check if the arguments are reasonable */ 1693 if (win1 == win2) 1694 return; 1695 1696 /* check if there is something to do */ 1697 if (win2->w_next != win1) 1698 { 1699 /* may need move the status line/vertical separator of the last window 1700 * */ 1701 if (win1 == lastwin) 1702 { 1703 height = win1->w_prev->w_status_height; 1704 win1->w_prev->w_status_height = win1->w_status_height; 1705 win1->w_status_height = height; 1706 if (win1->w_prev->w_vsep_width == 1) 1707 { 1708 /* Remove the vertical separator from the last-but-one window, 1709 * add it to the last window. Adjust the frame widths. */ 1710 win1->w_prev->w_vsep_width = 0; 1711 win1->w_prev->w_frame->fr_width -= 1; 1712 win1->w_vsep_width = 1; 1713 win1->w_frame->fr_width += 1; 1714 } 1715 } 1716 else if (win2 == lastwin) 1717 { 1718 height = win1->w_status_height; 1719 win1->w_status_height = win2->w_status_height; 1720 win2->w_status_height = height; 1721 if (win1->w_vsep_width == 1) 1722 { 1723 /* Remove the vertical separator from win1, add it to the last 1724 * window, win2. Adjust the frame widths. */ 1725 win2->w_vsep_width = 1; 1726 win2->w_frame->fr_width += 1; 1727 win1->w_vsep_width = 0; 1728 win1->w_frame->fr_width -= 1; 1729 } 1730 } 1731 win_remove(win1, NULL); 1732 frame_remove(win1->w_frame); 1733 win_append(win2, win1); 1734 frame_append(win2->w_frame, win1->w_frame); 1735 1736 (void)win_comp_pos(); /* recompute w_winrow for all windows */ 1737 redraw_later(NOT_VALID); 1738 } 1739 win_enter(win1, FALSE); 1740 } 1741 1742 /* 1743 * Make all windows the same height. 1744 * 'next_curwin' will soon be the current window, make sure it has enough 1745 * rows. 1746 */ 1747 void 1748 win_equal( 1749 win_T *next_curwin, /* pointer to current window to be or NULL */ 1750 int current, /* do only frame with current window */ 1751 int dir) /* 'v' for vertically, 'h' for horizontally, 1752 'b' for both, 0 for using p_ead */ 1753 { 1754 if (dir == 0) 1755 dir = *p_ead; 1756 win_equal_rec(next_curwin == NULL ? curwin : next_curwin, current, 1757 topframe, dir, 0, tabline_height(), 1758 (int)Columns, topframe->fr_height); 1759 } 1760 1761 /* 1762 * Set a frame to a new position and height, spreading the available room 1763 * equally over contained frames. 1764 * The window "next_curwin" (if not NULL) should at least get the size from 1765 * 'winheight' and 'winwidth' if possible. 1766 */ 1767 static void 1768 win_equal_rec( 1769 win_T *next_curwin, /* pointer to current window to be or NULL */ 1770 int current, /* do only frame with current window */ 1771 frame_T *topfr, /* frame to set size off */ 1772 int dir, /* 'v', 'h' or 'b', see win_equal() */ 1773 int col, /* horizontal position for frame */ 1774 int row, /* vertical position for frame */ 1775 int width, /* new width of frame */ 1776 int height) /* new height of frame */ 1777 { 1778 int n, m; 1779 int extra_sep = 0; 1780 int wincount, totwincount = 0; 1781 frame_T *fr; 1782 int next_curwin_size = 0; 1783 int room = 0; 1784 int new_size; 1785 int has_next_curwin = 0; 1786 int hnc; 1787 1788 if (topfr->fr_layout == FR_LEAF) 1789 { 1790 /* Set the width/height of this frame. 1791 * Redraw when size or position changes */ 1792 if (topfr->fr_height != height || topfr->fr_win->w_winrow != row 1793 || topfr->fr_width != width || topfr->fr_win->w_wincol != col 1794 ) 1795 { 1796 topfr->fr_win->w_winrow = row; 1797 frame_new_height(topfr, height, FALSE, FALSE); 1798 topfr->fr_win->w_wincol = col; 1799 frame_new_width(topfr, width, FALSE, FALSE); 1800 redraw_all_later(CLEAR); 1801 } 1802 } 1803 else if (topfr->fr_layout == FR_ROW) 1804 { 1805 topfr->fr_width = width; 1806 topfr->fr_height = height; 1807 1808 if (dir != 'v') /* equalize frame widths */ 1809 { 1810 /* Compute the maximum number of windows horizontally in this 1811 * frame. */ 1812 n = frame_minwidth(topfr, NOWIN); 1813 /* add one for the rightmost window, it doesn't have a separator */ 1814 if (col + width == Columns) 1815 extra_sep = 1; 1816 else 1817 extra_sep = 0; 1818 totwincount = (n + extra_sep) / (p_wmw + 1); 1819 has_next_curwin = frame_has_win(topfr, next_curwin); 1820 1821 /* 1822 * Compute width for "next_curwin" window and room available for 1823 * other windows. 1824 * "m" is the minimal width when counting p_wiw for "next_curwin". 1825 */ 1826 m = frame_minwidth(topfr, next_curwin); 1827 room = width - m; 1828 if (room < 0) 1829 { 1830 next_curwin_size = p_wiw + room; 1831 room = 0; 1832 } 1833 else 1834 { 1835 next_curwin_size = -1; 1836 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 1837 { 1838 /* If 'winfixwidth' set keep the window width if 1839 * possible. 1840 * Watch out for this window being the next_curwin. */ 1841 if (frame_fixed_width(fr)) 1842 { 1843 n = frame_minwidth(fr, NOWIN); 1844 new_size = fr->fr_width; 1845 if (frame_has_win(fr, next_curwin)) 1846 { 1847 room += p_wiw - p_wmw; 1848 next_curwin_size = 0; 1849 if (new_size < p_wiw) 1850 new_size = p_wiw; 1851 } 1852 else 1853 /* These windows don't use up room. */ 1854 totwincount -= (n + (fr->fr_next == NULL 1855 ? extra_sep : 0)) / (p_wmw + 1); 1856 room -= new_size - n; 1857 if (room < 0) 1858 { 1859 new_size += room; 1860 room = 0; 1861 } 1862 fr->fr_newwidth = new_size; 1863 } 1864 } 1865 if (next_curwin_size == -1) 1866 { 1867 if (!has_next_curwin) 1868 next_curwin_size = 0; 1869 else if (totwincount > 1 1870 && (room + (totwincount - 2)) 1871 / (totwincount - 1) > p_wiw) 1872 { 1873 /* Can make all windows wider than 'winwidth', spread 1874 * the room equally. */ 1875 next_curwin_size = (room + p_wiw 1876 + (totwincount - 1) * p_wmw 1877 + (totwincount - 1)) / totwincount; 1878 room -= next_curwin_size - p_wiw; 1879 } 1880 else 1881 next_curwin_size = p_wiw; 1882 } 1883 } 1884 1885 if (has_next_curwin) 1886 --totwincount; /* don't count curwin */ 1887 } 1888 1889 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 1890 { 1891 n = m = 0; 1892 wincount = 1; 1893 if (fr->fr_next == NULL) 1894 /* last frame gets all that remains (avoid roundoff error) */ 1895 new_size = width; 1896 else if (dir == 'v') 1897 new_size = fr->fr_width; 1898 else if (frame_fixed_width(fr)) 1899 { 1900 new_size = fr->fr_newwidth; 1901 wincount = 0; /* doesn't count as a sizeable window */ 1902 } 1903 else 1904 { 1905 /* Compute the maximum number of windows horiz. in "fr". */ 1906 n = frame_minwidth(fr, NOWIN); 1907 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 1908 / (p_wmw + 1); 1909 m = frame_minwidth(fr, next_curwin); 1910 if (has_next_curwin) 1911 hnc = frame_has_win(fr, next_curwin); 1912 else 1913 hnc = FALSE; 1914 if (hnc) /* don't count next_curwin */ 1915 --wincount; 1916 if (totwincount == 0) 1917 new_size = room; 1918 else 1919 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 1920 / totwincount; 1921 if (hnc) /* add next_curwin size */ 1922 { 1923 next_curwin_size -= p_wiw - (m - n); 1924 new_size += next_curwin_size; 1925 room -= new_size - next_curwin_size; 1926 } 1927 else 1928 room -= new_size; 1929 new_size += n; 1930 } 1931 1932 /* Skip frame that is full width when splitting or closing a 1933 * window, unless equalizing all frames. */ 1934 if (!current || dir != 'v' || topfr->fr_parent != NULL 1935 || (new_size != fr->fr_width) 1936 || frame_has_win(fr, next_curwin)) 1937 win_equal_rec(next_curwin, current, fr, dir, col, row, 1938 new_size, height); 1939 col += new_size; 1940 width -= new_size; 1941 totwincount -= wincount; 1942 } 1943 } 1944 else /* topfr->fr_layout == FR_COL */ 1945 { 1946 topfr->fr_width = width; 1947 topfr->fr_height = height; 1948 1949 if (dir != 'h') /* equalize frame heights */ 1950 { 1951 /* Compute maximum number of windows vertically in this frame. */ 1952 n = frame_minheight(topfr, NOWIN); 1953 /* add one for the bottom window if it doesn't have a statusline */ 1954 if (row + height == cmdline_row && p_ls == 0) 1955 extra_sep = 1; 1956 else 1957 extra_sep = 0; 1958 totwincount = (n + extra_sep) / (p_wmh + 1); 1959 has_next_curwin = frame_has_win(topfr, next_curwin); 1960 1961 /* 1962 * Compute height for "next_curwin" window and room available for 1963 * other windows. 1964 * "m" is the minimal height when counting p_wh for "next_curwin". 1965 */ 1966 m = frame_minheight(topfr, next_curwin); 1967 room = height - m; 1968 if (room < 0) 1969 { 1970 /* The room is less then 'winheight', use all space for the 1971 * current window. */ 1972 next_curwin_size = p_wh + room; 1973 room = 0; 1974 } 1975 else 1976 { 1977 next_curwin_size = -1; 1978 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 1979 { 1980 /* If 'winfixheight' set keep the window height if 1981 * possible. 1982 * Watch out for this window being the next_curwin. */ 1983 if (frame_fixed_height(fr)) 1984 { 1985 n = frame_minheight(fr, NOWIN); 1986 new_size = fr->fr_height; 1987 if (frame_has_win(fr, next_curwin)) 1988 { 1989 room += p_wh - p_wmh; 1990 next_curwin_size = 0; 1991 if (new_size < p_wh) 1992 new_size = p_wh; 1993 } 1994 else 1995 /* These windows don't use up room. */ 1996 totwincount -= (n + (fr->fr_next == NULL 1997 ? extra_sep : 0)) / (p_wmh + 1); 1998 room -= new_size - n; 1999 if (room < 0) 2000 { 2001 new_size += room; 2002 room = 0; 2003 } 2004 fr->fr_newheight = new_size; 2005 } 2006 } 2007 if (next_curwin_size == -1) 2008 { 2009 if (!has_next_curwin) 2010 next_curwin_size = 0; 2011 else if (totwincount > 1 2012 && (room + (totwincount - 2)) 2013 / (totwincount - 1) > p_wh) 2014 { 2015 /* can make all windows higher than 'winheight', 2016 * spread the room equally. */ 2017 next_curwin_size = (room + p_wh 2018 + (totwincount - 1) * p_wmh 2019 + (totwincount - 1)) / totwincount; 2020 room -= next_curwin_size - p_wh; 2021 } 2022 else 2023 next_curwin_size = p_wh; 2024 } 2025 } 2026 2027 if (has_next_curwin) 2028 --totwincount; /* don't count curwin */ 2029 } 2030 2031 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 2032 { 2033 n = m = 0; 2034 wincount = 1; 2035 if (fr->fr_next == NULL) 2036 /* last frame gets all that remains (avoid roundoff error) */ 2037 new_size = height; 2038 else if (dir == 'h') 2039 new_size = fr->fr_height; 2040 else if (frame_fixed_height(fr)) 2041 { 2042 new_size = fr->fr_newheight; 2043 wincount = 0; /* doesn't count as a sizeable window */ 2044 } 2045 else 2046 { 2047 /* Compute the maximum number of windows vert. in "fr". */ 2048 n = frame_minheight(fr, NOWIN); 2049 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 2050 / (p_wmh + 1); 2051 m = frame_minheight(fr, next_curwin); 2052 if (has_next_curwin) 2053 hnc = frame_has_win(fr, next_curwin); 2054 else 2055 hnc = FALSE; 2056 if (hnc) /* don't count next_curwin */ 2057 --wincount; 2058 if (totwincount == 0) 2059 new_size = room; 2060 else 2061 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 2062 / totwincount; 2063 if (hnc) /* add next_curwin size */ 2064 { 2065 next_curwin_size -= p_wh - (m - n); 2066 new_size += next_curwin_size; 2067 room -= new_size - next_curwin_size; 2068 } 2069 else 2070 room -= new_size; 2071 new_size += n; 2072 } 2073 /* Skip frame that is full width when splitting or closing a 2074 * window, unless equalizing all frames. */ 2075 if (!current || dir != 'h' || topfr->fr_parent != NULL 2076 || (new_size != fr->fr_height) 2077 || frame_has_win(fr, next_curwin)) 2078 win_equal_rec(next_curwin, current, fr, dir, col, row, 2079 width, new_size); 2080 row += new_size; 2081 height -= new_size; 2082 totwincount -= wincount; 2083 } 2084 } 2085 } 2086 2087 /* 2088 * close all windows for buffer 'buf' 2089 */ 2090 void 2091 close_windows( 2092 buf_T *buf, 2093 int keep_curwin) /* don't close "curwin" */ 2094 { 2095 win_T *wp; 2096 tabpage_T *tp, *nexttp; 2097 int h = tabline_height(); 2098 #ifdef FEAT_AUTOCMD 2099 int count = tabpage_index(NULL); 2100 #endif 2101 2102 ++RedrawingDisabled; 2103 2104 for (wp = firstwin; wp != NULL && lastwin != firstwin; ) 2105 { 2106 if (wp->w_buffer == buf && (!keep_curwin || wp != curwin) 2107 #ifdef FEAT_AUTOCMD 2108 && !(wp->w_closing || wp->w_buffer->b_closing) 2109 #endif 2110 ) 2111 { 2112 win_close(wp, FALSE); 2113 2114 /* Start all over, autocommands may change the window layout. */ 2115 wp = firstwin; 2116 } 2117 else 2118 wp = wp->w_next; 2119 } 2120 2121 /* Also check windows in other tab pages. */ 2122 for (tp = first_tabpage; tp != NULL; tp = nexttp) 2123 { 2124 nexttp = tp->tp_next; 2125 if (tp != curtab) 2126 for (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next) 2127 if (wp->w_buffer == buf 2128 #ifdef FEAT_AUTOCMD 2129 && !(wp->w_closing || wp->w_buffer->b_closing) 2130 #endif 2131 ) 2132 { 2133 win_close_othertab(wp, FALSE, tp); 2134 2135 /* Start all over, the tab page may be closed and 2136 * autocommands may change the window layout. */ 2137 nexttp = first_tabpage; 2138 break; 2139 } 2140 } 2141 2142 --RedrawingDisabled; 2143 2144 #ifdef FEAT_AUTOCMD 2145 if (count != tabpage_index(NULL)) 2146 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2147 #endif 2148 2149 redraw_tabline = TRUE; 2150 if (h != tabline_height()) 2151 shell_new_rows(); 2152 } 2153 2154 /* 2155 * Return TRUE if the current window is the only window that exists (ignoring 2156 * "aucmd_win"). 2157 * Returns FALSE if there is a window, possibly in another tab page. 2158 */ 2159 static int 2160 last_window(void) 2161 { 2162 return (one_window() && first_tabpage->tp_next == NULL); 2163 } 2164 2165 /* 2166 * Return TRUE if there is only one window other than "aucmd_win" in the 2167 * current tab page. 2168 */ 2169 int 2170 one_window(void) 2171 { 2172 #ifdef FEAT_AUTOCMD 2173 win_T *wp; 2174 int seen_one = FALSE; 2175 2176 FOR_ALL_WINDOWS(wp) 2177 { 2178 if (wp != aucmd_win) 2179 { 2180 if (seen_one) 2181 return FALSE; 2182 seen_one = TRUE; 2183 } 2184 } 2185 return TRUE; 2186 #else 2187 return firstwin == lastwin; 2188 #endif 2189 } 2190 2191 /* 2192 * Close the possibly last window in a tab page. 2193 * Returns TRUE when the window was closed already. 2194 */ 2195 static int 2196 close_last_window_tabpage( 2197 win_T *win, 2198 int free_buf, 2199 tabpage_T *prev_curtab) 2200 { 2201 if (firstwin == lastwin) 2202 { 2203 #ifdef FEAT_AUTOCMD 2204 buf_T *old_curbuf = curbuf; 2205 #endif 2206 2207 /* 2208 * Closing the last window in a tab page. First go to another tab 2209 * page and then close the window and the tab page. This avoids that 2210 * curwin and curtab are invalid while we are freeing memory, they may 2211 * be used in GUI events. 2212 * Don't trigger autocommands yet, they may use wrong values, so do 2213 * that below. 2214 */ 2215 goto_tabpage_tp(alt_tabpage(), FALSE, TRUE); 2216 redraw_tabline = TRUE; 2217 2218 /* Safety check: Autocommands may have closed the window when jumping 2219 * to the other tab page. */ 2220 if (valid_tabpage(prev_curtab) && prev_curtab->tp_firstwin == win) 2221 { 2222 int h = tabline_height(); 2223 2224 win_close_othertab(win, free_buf, prev_curtab); 2225 if (h != tabline_height()) 2226 shell_new_rows(); 2227 } 2228 /* Since goto_tabpage_tp above did not trigger *Enter autocommands, do 2229 * that now. */ 2230 #ifdef FEAT_AUTOCMD 2231 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2232 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 2233 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 2234 if (old_curbuf != curbuf) 2235 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2236 #endif 2237 return TRUE; 2238 } 2239 return FALSE; 2240 } 2241 2242 /* 2243 * Close window "win". Only works for the current tab page. 2244 * If "free_buf" is TRUE related buffer may be unloaded. 2245 * 2246 * Called by :quit, :close, :xit, :wq and findtag(). 2247 * Returns FAIL when the window was not closed. 2248 */ 2249 int 2250 win_close(win_T *win, int free_buf) 2251 { 2252 win_T *wp; 2253 #ifdef FEAT_AUTOCMD 2254 int other_buffer = FALSE; 2255 #endif 2256 int close_curwin = FALSE; 2257 int dir; 2258 int help_window = FALSE; 2259 tabpage_T *prev_curtab = curtab; 2260 2261 if (last_window()) 2262 { 2263 EMSG(_("E444: Cannot close last window")); 2264 return FAIL; 2265 } 2266 2267 #ifdef FEAT_AUTOCMD 2268 if (win->w_closing || (win->w_buffer != NULL && win->w_buffer->b_closing)) 2269 return FAIL; /* window is already being closed */ 2270 if (win == aucmd_win) 2271 { 2272 EMSG(_("E813: Cannot close autocmd window")); 2273 return FAIL; 2274 } 2275 if ((firstwin == aucmd_win || lastwin == aucmd_win) && one_window()) 2276 { 2277 EMSG(_("E814: Cannot close window, only autocmd window would remain")); 2278 return FAIL; 2279 } 2280 #endif 2281 2282 /* When closing the last window in a tab page first go to another tab page 2283 * and then close the window and the tab page to avoid that curwin and 2284 * curtab are invalid while we are freeing memory. */ 2285 if (close_last_window_tabpage(win, free_buf, prev_curtab)) 2286 return FAIL; 2287 2288 /* When closing the help window, try restoring a snapshot after closing 2289 * the window. Otherwise clear the snapshot, it's now invalid. */ 2290 if (win->w_buffer != NULL && win->w_buffer->b_help) 2291 help_window = TRUE; 2292 else 2293 clear_snapshot(curtab, SNAP_HELP_IDX); 2294 2295 #ifdef FEAT_AUTOCMD 2296 if (win == curwin) 2297 { 2298 /* 2299 * Guess which window is going to be the new current window. 2300 * This may change because of the autocommands (sigh). 2301 */ 2302 wp = frame2win(win_altframe(win, NULL)); 2303 2304 /* 2305 * Be careful: If autocommands delete the window or cause this window 2306 * to be the last one left, return now. 2307 */ 2308 if (wp->w_buffer != curbuf) 2309 { 2310 other_buffer = TRUE; 2311 win->w_closing = TRUE; 2312 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 2313 if (!win_valid(win)) 2314 return FAIL; 2315 win->w_closing = FALSE; 2316 if (last_window()) 2317 return FAIL; 2318 } 2319 win->w_closing = TRUE; 2320 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 2321 if (!win_valid(win)) 2322 return FAIL; 2323 win->w_closing = FALSE; 2324 if (last_window()) 2325 return FAIL; 2326 # ifdef FEAT_EVAL 2327 /* autocmds may abort script processing */ 2328 if (aborting()) 2329 return FAIL; 2330 # endif 2331 } 2332 #endif 2333 2334 #ifdef FEAT_GUI 2335 /* Avoid trouble with scrollbars that are going to be deleted in 2336 * win_free(). */ 2337 if (gui.in_use) 2338 out_flush(); 2339 #endif 2340 2341 #ifdef FEAT_SYN_HL 2342 /* Free independent synblock before the buffer is freed. */ 2343 if (win->w_buffer != NULL) 2344 reset_synblock(win); 2345 #endif 2346 2347 /* 2348 * Close the link to the buffer. 2349 */ 2350 if (win->w_buffer != NULL) 2351 { 2352 bufref_T bufref; 2353 2354 set_bufref(&bufref, curbuf); 2355 #ifdef FEAT_AUTOCMD 2356 win->w_closing = TRUE; 2357 #endif 2358 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, TRUE); 2359 #ifdef FEAT_AUTOCMD 2360 if (win_valid(win)) 2361 win->w_closing = FALSE; 2362 #endif 2363 /* Make sure curbuf is valid. It can become invalid if 'bufhidden' is 2364 * "wipe". */ 2365 if (!bufref_valid(&bufref)) 2366 curbuf = firstbuf; 2367 } 2368 2369 if (only_one_window() && win_valid(win) && win->w_buffer == NULL 2370 && (last_window() || curtab != prev_curtab 2371 || close_last_window_tabpage(win, free_buf, prev_curtab))) 2372 { 2373 /* Autocommands have close all windows, quit now. Restore 2374 * curwin->w_buffer, otherwise writing viminfo may fail. */ 2375 if (curwin->w_buffer == NULL) 2376 curwin->w_buffer = curbuf; 2377 getout(0); 2378 } 2379 2380 /* Autocommands may have closed the window already, or closed the only 2381 * other window or moved to another tab page. */ 2382 else if (!win_valid(win) || last_window() || curtab != prev_curtab 2383 || close_last_window_tabpage(win, free_buf, prev_curtab)) 2384 return FAIL; 2385 2386 /* Free the memory used for the window and get the window that received 2387 * the screen space. */ 2388 wp = win_free_mem(win, &dir, NULL); 2389 2390 /* Make sure curwin isn't invalid. It can cause severe trouble when 2391 * printing an error message. For win_equal() curbuf needs to be valid 2392 * too. */ 2393 if (win == curwin) 2394 { 2395 curwin = wp; 2396 #ifdef FEAT_QUICKFIX 2397 if (wp->w_p_pvw || bt_quickfix(wp->w_buffer)) 2398 { 2399 /* 2400 * If the cursor goes to the preview or the quickfix window, try 2401 * finding another window to go to. 2402 */ 2403 for (;;) 2404 { 2405 if (wp->w_next == NULL) 2406 wp = firstwin; 2407 else 2408 wp = wp->w_next; 2409 if (wp == curwin) 2410 break; 2411 if (!wp->w_p_pvw && !bt_quickfix(wp->w_buffer)) 2412 { 2413 curwin = wp; 2414 break; 2415 } 2416 } 2417 } 2418 #endif 2419 curbuf = curwin->w_buffer; 2420 close_curwin = TRUE; 2421 } 2422 if (p_ea && (*p_ead == 'b' || *p_ead == dir)) 2423 win_equal(curwin, TRUE, dir); 2424 else 2425 win_comp_pos(); 2426 if (close_curwin) 2427 { 2428 win_enter_ext(wp, FALSE, TRUE, FALSE, TRUE, TRUE); 2429 #ifdef FEAT_AUTOCMD 2430 if (other_buffer) 2431 /* careful: after this wp and win may be invalid! */ 2432 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2433 #endif 2434 } 2435 2436 /* 2437 * If last window has a status line now and we don't want one, 2438 * remove the status line. 2439 */ 2440 last_status(FALSE); 2441 2442 /* After closing the help window, try restoring the window layout from 2443 * before it was opened. */ 2444 if (help_window) 2445 restore_snapshot(SNAP_HELP_IDX, close_curwin); 2446 2447 #if defined(FEAT_GUI) 2448 /* When 'guioptions' includes 'L' or 'R' may have to remove scrollbars. */ 2449 if (gui.in_use && !win_hasvertsplit()) 2450 gui_init_which_components(NULL); 2451 #endif 2452 2453 redraw_all_later(NOT_VALID); 2454 return OK; 2455 } 2456 2457 /* 2458 * Close window "win" in tab page "tp", which is not the current tab page. 2459 * This may be the last window in that tab page and result in closing the tab, 2460 * thus "tp" may become invalid! 2461 * Caller must check if buffer is hidden and whether the tabline needs to be 2462 * updated. 2463 */ 2464 void 2465 win_close_othertab(win_T *win, int free_buf, tabpage_T *tp) 2466 { 2467 win_T *wp; 2468 int dir; 2469 tabpage_T *ptp = NULL; 2470 int free_tp = FALSE; 2471 2472 #ifdef FEAT_AUTOCMD 2473 if (win->w_closing || win->w_buffer->b_closing) 2474 return; /* window is already being closed */ 2475 #endif 2476 2477 /* Close the link to the buffer. */ 2478 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, FALSE); 2479 2480 /* Careful: Autocommands may have closed the tab page or made it the 2481 * current tab page. */ 2482 for (ptp = first_tabpage; ptp != NULL && ptp != tp; ptp = ptp->tp_next) 2483 ; 2484 if (ptp == NULL || tp == curtab) 2485 return; 2486 2487 /* Autocommands may have closed the window already. */ 2488 for (wp = tp->tp_firstwin; wp != NULL && wp != win; wp = wp->w_next) 2489 ; 2490 if (wp == NULL) 2491 return; 2492 2493 /* When closing the last window in a tab page remove the tab page. */ 2494 if (tp->tp_firstwin == tp->tp_lastwin) 2495 { 2496 if (tp == first_tabpage) 2497 first_tabpage = tp->tp_next; 2498 else 2499 { 2500 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tp; 2501 ptp = ptp->tp_next) 2502 ; 2503 if (ptp == NULL) 2504 { 2505 EMSG2(_(e_intern2), "win_close_othertab()"); 2506 return; 2507 } 2508 ptp->tp_next = tp->tp_next; 2509 } 2510 free_tp = TRUE; 2511 } 2512 2513 /* Free the memory used for the window. */ 2514 win_free_mem(win, &dir, tp); 2515 2516 if (free_tp) 2517 free_tabpage(tp); 2518 } 2519 2520 /* 2521 * Free the memory used for a window. 2522 * Returns a pointer to the window that got the freed up space. 2523 */ 2524 static win_T * 2525 win_free_mem( 2526 win_T *win, 2527 int *dirp, /* set to 'v' or 'h' for direction if 'ea' */ 2528 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 2529 { 2530 frame_T *frp; 2531 win_T *wp; 2532 2533 /* Remove the window and its frame from the tree of frames. */ 2534 frp = win->w_frame; 2535 wp = winframe_remove(win, dirp, tp); 2536 vim_free(frp); 2537 win_free(win, tp); 2538 2539 /* When deleting the current window of another tab page select a new 2540 * current window. */ 2541 if (tp != NULL && win == tp->tp_curwin) 2542 tp->tp_curwin = wp; 2543 2544 return wp; 2545 } 2546 2547 #if defined(EXITFREE) || defined(PROTO) 2548 void 2549 win_free_all(void) 2550 { 2551 int dummy; 2552 2553 # ifdef FEAT_WINDOWS 2554 while (first_tabpage->tp_next != NULL) 2555 tabpage_close(TRUE); 2556 # endif 2557 2558 # ifdef FEAT_AUTOCMD 2559 if (aucmd_win != NULL) 2560 { 2561 (void)win_free_mem(aucmd_win, &dummy, NULL); 2562 aucmd_win = NULL; 2563 } 2564 # endif 2565 2566 while (firstwin != NULL) 2567 (void)win_free_mem(firstwin, &dummy, NULL); 2568 2569 /* No window should be used after this. Set curwin to NULL to crash 2570 * instead of using freed memory. */ 2571 curwin = NULL; 2572 } 2573 #endif 2574 2575 /* 2576 * Remove a window and its frame from the tree of frames. 2577 * Returns a pointer to the window that got the freed up space. 2578 */ 2579 win_T * 2580 winframe_remove( 2581 win_T *win, 2582 int *dirp UNUSED, /* set to 'v' or 'h' for direction if 'ea' */ 2583 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 2584 { 2585 frame_T *frp, *frp2, *frp3; 2586 frame_T *frp_close = win->w_frame; 2587 win_T *wp; 2588 2589 /* 2590 * If there is only one window there is nothing to remove. 2591 */ 2592 if (tp == NULL ? firstwin == lastwin : tp->tp_firstwin == tp->tp_lastwin) 2593 return NULL; 2594 2595 /* 2596 * Remove the window from its frame. 2597 */ 2598 frp2 = win_altframe(win, tp); 2599 wp = frame2win(frp2); 2600 2601 /* Remove this frame from the list of frames. */ 2602 frame_remove(frp_close); 2603 2604 if (frp_close->fr_parent->fr_layout == FR_COL) 2605 { 2606 /* When 'winfixheight' is set, try to find another frame in the column 2607 * (as close to the closed frame as possible) to distribute the height 2608 * to. */ 2609 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfh) 2610 { 2611 frp = frp_close->fr_prev; 2612 frp3 = frp_close->fr_next; 2613 while (frp != NULL || frp3 != NULL) 2614 { 2615 if (frp != NULL) 2616 { 2617 if (frp->fr_win != NULL && !frp->fr_win->w_p_wfh) 2618 { 2619 frp2 = frp; 2620 wp = frp->fr_win; 2621 break; 2622 } 2623 frp = frp->fr_prev; 2624 } 2625 if (frp3 != NULL) 2626 { 2627 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfh) 2628 { 2629 frp2 = frp3; 2630 wp = frp3->fr_win; 2631 break; 2632 } 2633 frp3 = frp3->fr_next; 2634 } 2635 } 2636 } 2637 frame_new_height(frp2, frp2->fr_height + frp_close->fr_height, 2638 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2639 *dirp = 'v'; 2640 } 2641 else 2642 { 2643 /* When 'winfixwidth' is set, try to find another frame in the column 2644 * (as close to the closed frame as possible) to distribute the width 2645 * to. */ 2646 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfw) 2647 { 2648 frp = frp_close->fr_prev; 2649 frp3 = frp_close->fr_next; 2650 while (frp != NULL || frp3 != NULL) 2651 { 2652 if (frp != NULL) 2653 { 2654 if (frp->fr_win != NULL && !frp->fr_win->w_p_wfw) 2655 { 2656 frp2 = frp; 2657 wp = frp->fr_win; 2658 break; 2659 } 2660 frp = frp->fr_prev; 2661 } 2662 if (frp3 != NULL) 2663 { 2664 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfw) 2665 { 2666 frp2 = frp3; 2667 wp = frp3->fr_win; 2668 break; 2669 } 2670 frp3 = frp3->fr_next; 2671 } 2672 } 2673 } 2674 frame_new_width(frp2, frp2->fr_width + frp_close->fr_width, 2675 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2676 *dirp = 'h'; 2677 } 2678 2679 /* If rows/columns go to a window below/right its positions need to be 2680 * updated. Can only be done after the sizes have been updated. */ 2681 if (frp2 == frp_close->fr_next) 2682 { 2683 int row = win->w_winrow; 2684 int col = W_WINCOL(win); 2685 2686 frame_comp_pos(frp2, &row, &col); 2687 } 2688 2689 if (frp2->fr_next == NULL && frp2->fr_prev == NULL) 2690 { 2691 /* There is no other frame in this list, move its info to the parent 2692 * and remove it. */ 2693 frp2->fr_parent->fr_layout = frp2->fr_layout; 2694 frp2->fr_parent->fr_child = frp2->fr_child; 2695 for (frp = frp2->fr_child; frp != NULL; frp = frp->fr_next) 2696 frp->fr_parent = frp2->fr_parent; 2697 frp2->fr_parent->fr_win = frp2->fr_win; 2698 if (frp2->fr_win != NULL) 2699 frp2->fr_win->w_frame = frp2->fr_parent; 2700 frp = frp2->fr_parent; 2701 vim_free(frp2); 2702 2703 frp2 = frp->fr_parent; 2704 if (frp2 != NULL && frp2->fr_layout == frp->fr_layout) 2705 { 2706 /* The frame above the parent has the same layout, have to merge 2707 * the frames into this list. */ 2708 if (frp2->fr_child == frp) 2709 frp2->fr_child = frp->fr_child; 2710 frp->fr_child->fr_prev = frp->fr_prev; 2711 if (frp->fr_prev != NULL) 2712 frp->fr_prev->fr_next = frp->fr_child; 2713 for (frp3 = frp->fr_child; ; frp3 = frp3->fr_next) 2714 { 2715 frp3->fr_parent = frp2; 2716 if (frp3->fr_next == NULL) 2717 { 2718 frp3->fr_next = frp->fr_next; 2719 if (frp->fr_next != NULL) 2720 frp->fr_next->fr_prev = frp3; 2721 break; 2722 } 2723 } 2724 vim_free(frp); 2725 } 2726 } 2727 2728 return wp; 2729 } 2730 2731 /* 2732 * Find out which frame is going to get the freed up space when "win" is 2733 * closed. 2734 * if 'splitbelow'/'splitleft' the space goes to the window above/left. 2735 * if 'nosplitbelow'/'nosplitleft' the space goes to the window below/right. 2736 * This makes opening a window and closing it immediately keep the same window 2737 * layout. 2738 */ 2739 static frame_T * 2740 win_altframe( 2741 win_T *win, 2742 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 2743 { 2744 frame_T *frp; 2745 int b; 2746 2747 if (tp == NULL ? firstwin == lastwin : tp->tp_firstwin == tp->tp_lastwin) 2748 /* Last window in this tab page, will go to next tab page. */ 2749 return alt_tabpage()->tp_curwin->w_frame; 2750 2751 frp = win->w_frame; 2752 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW) 2753 b = p_spr; 2754 else 2755 b = p_sb; 2756 if ((!b && frp->fr_next != NULL) || frp->fr_prev == NULL) 2757 return frp->fr_next; 2758 return frp->fr_prev; 2759 } 2760 2761 /* 2762 * Return the tabpage that will be used if the current one is closed. 2763 */ 2764 static tabpage_T * 2765 alt_tabpage(void) 2766 { 2767 tabpage_T *tp; 2768 2769 /* Use the next tab page if possible. */ 2770 if (curtab->tp_next != NULL) 2771 return curtab->tp_next; 2772 2773 /* Find the last but one tab page. */ 2774 for (tp = first_tabpage; tp->tp_next != curtab; tp = tp->tp_next) 2775 ; 2776 return tp; 2777 } 2778 2779 /* 2780 * Find the left-upper window in frame "frp". 2781 */ 2782 static win_T * 2783 frame2win(frame_T *frp) 2784 { 2785 while (frp->fr_win == NULL) 2786 frp = frp->fr_child; 2787 return frp->fr_win; 2788 } 2789 2790 /* 2791 * Return TRUE if frame "frp" contains window "wp". 2792 */ 2793 static int 2794 frame_has_win(frame_T *frp, win_T *wp) 2795 { 2796 frame_T *p; 2797 2798 if (frp->fr_layout == FR_LEAF) 2799 return frp->fr_win == wp; 2800 2801 for (p = frp->fr_child; p != NULL; p = p->fr_next) 2802 if (frame_has_win(p, wp)) 2803 return TRUE; 2804 return FALSE; 2805 } 2806 2807 /* 2808 * Set a new height for a frame. Recursively sets the height for contained 2809 * frames and windows. Caller must take care of positions. 2810 */ 2811 static void 2812 frame_new_height( 2813 frame_T *topfrp, 2814 int height, 2815 int topfirst, /* resize topmost contained frame first */ 2816 int wfh) /* obey 'winfixheight' when there is a choice; 2817 may cause the height not to be set */ 2818 { 2819 frame_T *frp; 2820 int extra_lines; 2821 int h; 2822 2823 if (topfrp->fr_win != NULL) 2824 { 2825 /* Simple case: just one window. */ 2826 win_new_height(topfrp->fr_win, 2827 height - topfrp->fr_win->w_status_height); 2828 } 2829 else if (topfrp->fr_layout == FR_ROW) 2830 { 2831 do 2832 { 2833 /* All frames in this row get the same new height. */ 2834 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 2835 { 2836 frame_new_height(frp, height, topfirst, wfh); 2837 if (frp->fr_height > height) 2838 { 2839 /* Could not fit the windows, make the whole row higher. */ 2840 height = frp->fr_height; 2841 break; 2842 } 2843 } 2844 } 2845 while (frp != NULL); 2846 } 2847 else /* fr_layout == FR_COL */ 2848 { 2849 /* Complicated case: Resize a column of frames. Resize the bottom 2850 * frame first, frames above that when needed. */ 2851 2852 frp = topfrp->fr_child; 2853 if (wfh) 2854 /* Advance past frames with one window with 'wfh' set. */ 2855 while (frame_fixed_height(frp)) 2856 { 2857 frp = frp->fr_next; 2858 if (frp == NULL) 2859 return; /* no frame without 'wfh', give up */ 2860 } 2861 if (!topfirst) 2862 { 2863 /* Find the bottom frame of this column */ 2864 while (frp->fr_next != NULL) 2865 frp = frp->fr_next; 2866 if (wfh) 2867 /* Advance back for frames with one window with 'wfh' set. */ 2868 while (frame_fixed_height(frp)) 2869 frp = frp->fr_prev; 2870 } 2871 2872 extra_lines = height - topfrp->fr_height; 2873 if (extra_lines < 0) 2874 { 2875 /* reduce height of contained frames, bottom or top frame first */ 2876 while (frp != NULL) 2877 { 2878 h = frame_minheight(frp, NULL); 2879 if (frp->fr_height + extra_lines < h) 2880 { 2881 extra_lines += frp->fr_height - h; 2882 frame_new_height(frp, h, topfirst, wfh); 2883 } 2884 else 2885 { 2886 frame_new_height(frp, frp->fr_height + extra_lines, 2887 topfirst, wfh); 2888 break; 2889 } 2890 if (topfirst) 2891 { 2892 do 2893 frp = frp->fr_next; 2894 while (wfh && frp != NULL && frame_fixed_height(frp)); 2895 } 2896 else 2897 { 2898 do 2899 frp = frp->fr_prev; 2900 while (wfh && frp != NULL && frame_fixed_height(frp)); 2901 } 2902 /* Increase "height" if we could not reduce enough frames. */ 2903 if (frp == NULL) 2904 height -= extra_lines; 2905 } 2906 } 2907 else if (extra_lines > 0) 2908 { 2909 /* increase height of bottom or top frame */ 2910 frame_new_height(frp, frp->fr_height + extra_lines, topfirst, wfh); 2911 } 2912 } 2913 topfrp->fr_height = height; 2914 } 2915 2916 /* 2917 * Return TRUE if height of frame "frp" should not be changed because of 2918 * the 'winfixheight' option. 2919 */ 2920 static int 2921 frame_fixed_height(frame_T *frp) 2922 { 2923 /* frame with one window: fixed height if 'winfixheight' set. */ 2924 if (frp->fr_win != NULL) 2925 return frp->fr_win->w_p_wfh; 2926 2927 if (frp->fr_layout == FR_ROW) 2928 { 2929 /* The frame is fixed height if one of the frames in the row is fixed 2930 * height. */ 2931 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2932 if (frame_fixed_height(frp)) 2933 return TRUE; 2934 return FALSE; 2935 } 2936 2937 /* frp->fr_layout == FR_COL: The frame is fixed height if all of the 2938 * frames in the row are fixed height. */ 2939 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2940 if (!frame_fixed_height(frp)) 2941 return FALSE; 2942 return TRUE; 2943 } 2944 2945 /* 2946 * Return TRUE if width of frame "frp" should not be changed because of 2947 * the 'winfixwidth' option. 2948 */ 2949 static int 2950 frame_fixed_width(frame_T *frp) 2951 { 2952 /* frame with one window: fixed width if 'winfixwidth' set. */ 2953 if (frp->fr_win != NULL) 2954 return frp->fr_win->w_p_wfw; 2955 2956 if (frp->fr_layout == FR_COL) 2957 { 2958 /* The frame is fixed width if one of the frames in the row is fixed 2959 * width. */ 2960 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2961 if (frame_fixed_width(frp)) 2962 return TRUE; 2963 return FALSE; 2964 } 2965 2966 /* frp->fr_layout == FR_ROW: The frame is fixed width if all of the 2967 * frames in the row are fixed width. */ 2968 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2969 if (!frame_fixed_width(frp)) 2970 return FALSE; 2971 return TRUE; 2972 } 2973 2974 /* 2975 * Add a status line to windows at the bottom of "frp". 2976 * Note: Does not check if there is room! 2977 */ 2978 static void 2979 frame_add_statusline(frame_T *frp) 2980 { 2981 win_T *wp; 2982 2983 if (frp->fr_layout == FR_LEAF) 2984 { 2985 wp = frp->fr_win; 2986 if (wp->w_status_height == 0) 2987 { 2988 if (wp->w_height > 0) /* don't make it negative */ 2989 --wp->w_height; 2990 wp->w_status_height = STATUS_HEIGHT; 2991 } 2992 } 2993 else if (frp->fr_layout == FR_ROW) 2994 { 2995 /* Handle all the frames in the row. */ 2996 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2997 frame_add_statusline(frp); 2998 } 2999 else /* frp->fr_layout == FR_COL */ 3000 { 3001 /* Only need to handle the last frame in the column. */ 3002 for (frp = frp->fr_child; frp->fr_next != NULL; frp = frp->fr_next) 3003 ; 3004 frame_add_statusline(frp); 3005 } 3006 } 3007 3008 /* 3009 * Set width of a frame. Handles recursively going through contained frames. 3010 * May remove separator line for windows at the right side (for win_close()). 3011 */ 3012 static void 3013 frame_new_width( 3014 frame_T *topfrp, 3015 int width, 3016 int leftfirst, /* resize leftmost contained frame first */ 3017 int wfw) /* obey 'winfixwidth' when there is a choice; 3018 may cause the width not to be set */ 3019 { 3020 frame_T *frp; 3021 int extra_cols; 3022 int w; 3023 win_T *wp; 3024 3025 if (topfrp->fr_layout == FR_LEAF) 3026 { 3027 /* Simple case: just one window. */ 3028 wp = topfrp->fr_win; 3029 /* Find out if there are any windows right of this one. */ 3030 for (frp = topfrp; frp->fr_parent != NULL; frp = frp->fr_parent) 3031 if (frp->fr_parent->fr_layout == FR_ROW && frp->fr_next != NULL) 3032 break; 3033 if (frp->fr_parent == NULL) 3034 wp->w_vsep_width = 0; 3035 win_new_width(wp, width - wp->w_vsep_width); 3036 } 3037 else if (topfrp->fr_layout == FR_COL) 3038 { 3039 do 3040 { 3041 /* All frames in this column get the same new width. */ 3042 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3043 { 3044 frame_new_width(frp, width, leftfirst, wfw); 3045 if (frp->fr_width > width) 3046 { 3047 /* Could not fit the windows, make whole column wider. */ 3048 width = frp->fr_width; 3049 break; 3050 } 3051 } 3052 } while (frp != NULL); 3053 } 3054 else /* fr_layout == FR_ROW */ 3055 { 3056 /* Complicated case: Resize a row of frames. Resize the rightmost 3057 * frame first, frames left of it when needed. */ 3058 3059 frp = topfrp->fr_child; 3060 if (wfw) 3061 /* Advance past frames with one window with 'wfw' set. */ 3062 while (frame_fixed_width(frp)) 3063 { 3064 frp = frp->fr_next; 3065 if (frp == NULL) 3066 return; /* no frame without 'wfw', give up */ 3067 } 3068 if (!leftfirst) 3069 { 3070 /* Find the rightmost frame of this row */ 3071 while (frp->fr_next != NULL) 3072 frp = frp->fr_next; 3073 if (wfw) 3074 /* Advance back for frames with one window with 'wfw' set. */ 3075 while (frame_fixed_width(frp)) 3076 frp = frp->fr_prev; 3077 } 3078 3079 extra_cols = width - topfrp->fr_width; 3080 if (extra_cols < 0) 3081 { 3082 /* reduce frame width, rightmost frame first */ 3083 while (frp != NULL) 3084 { 3085 w = frame_minwidth(frp, NULL); 3086 if (frp->fr_width + extra_cols < w) 3087 { 3088 extra_cols += frp->fr_width - w; 3089 frame_new_width(frp, w, leftfirst, wfw); 3090 } 3091 else 3092 { 3093 frame_new_width(frp, frp->fr_width + extra_cols, 3094 leftfirst, wfw); 3095 break; 3096 } 3097 if (leftfirst) 3098 { 3099 do 3100 frp = frp->fr_next; 3101 while (wfw && frp != NULL && frame_fixed_width(frp)); 3102 } 3103 else 3104 { 3105 do 3106 frp = frp->fr_prev; 3107 while (wfw && frp != NULL && frame_fixed_width(frp)); 3108 } 3109 /* Increase "width" if we could not reduce enough frames. */ 3110 if (frp == NULL) 3111 width -= extra_cols; 3112 } 3113 } 3114 else if (extra_cols > 0) 3115 { 3116 /* increase width of rightmost frame */ 3117 frame_new_width(frp, frp->fr_width + extra_cols, leftfirst, wfw); 3118 } 3119 } 3120 topfrp->fr_width = width; 3121 } 3122 3123 /* 3124 * Add the vertical separator to windows at the right side of "frp". 3125 * Note: Does not check if there is room! 3126 */ 3127 static void 3128 frame_add_vsep(frame_T *frp) 3129 { 3130 win_T *wp; 3131 3132 if (frp->fr_layout == FR_LEAF) 3133 { 3134 wp = frp->fr_win; 3135 if (wp->w_vsep_width == 0) 3136 { 3137 if (wp->w_width > 0) /* don't make it negative */ 3138 --wp->w_width; 3139 wp->w_vsep_width = 1; 3140 } 3141 } 3142 else if (frp->fr_layout == FR_COL) 3143 { 3144 /* Handle all the frames in the column. */ 3145 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 3146 frame_add_vsep(frp); 3147 } 3148 else /* frp->fr_layout == FR_ROW */ 3149 { 3150 /* Only need to handle the last frame in the row. */ 3151 frp = frp->fr_child; 3152 while (frp->fr_next != NULL) 3153 frp = frp->fr_next; 3154 frame_add_vsep(frp); 3155 } 3156 } 3157 3158 /* 3159 * Set frame width from the window it contains. 3160 */ 3161 static void 3162 frame_fix_width(win_T *wp) 3163 { 3164 wp->w_frame->fr_width = wp->w_width + wp->w_vsep_width; 3165 } 3166 3167 /* 3168 * Set frame height from the window it contains. 3169 */ 3170 static void 3171 frame_fix_height(win_T *wp) 3172 { 3173 wp->w_frame->fr_height = wp->w_height + wp->w_status_height; 3174 } 3175 3176 /* 3177 * Compute the minimal height for frame "topfrp". 3178 * Uses the 'winminheight' option. 3179 * When "next_curwin" isn't NULL, use p_wh for this window. 3180 * When "next_curwin" is NOWIN, don't use at least one line for the current 3181 * window. 3182 */ 3183 static int 3184 frame_minheight(frame_T *topfrp, win_T *next_curwin) 3185 { 3186 frame_T *frp; 3187 int m; 3188 int n; 3189 3190 if (topfrp->fr_win != NULL) 3191 { 3192 if (topfrp->fr_win == next_curwin) 3193 m = p_wh + topfrp->fr_win->w_status_height; 3194 else 3195 { 3196 /* window: minimal height of the window plus status line */ 3197 m = p_wmh + topfrp->fr_win->w_status_height; 3198 /* Current window is minimal one line high */ 3199 if (p_wmh == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3200 ++m; 3201 } 3202 } 3203 else if (topfrp->fr_layout == FR_ROW) 3204 { 3205 /* get the minimal height from each frame in this row */ 3206 m = 0; 3207 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3208 { 3209 n = frame_minheight(frp, next_curwin); 3210 if (n > m) 3211 m = n; 3212 } 3213 } 3214 else 3215 { 3216 /* Add up the minimal heights for all frames in this column. */ 3217 m = 0; 3218 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3219 m += frame_minheight(frp, next_curwin); 3220 } 3221 3222 return m; 3223 } 3224 3225 /* 3226 * Compute the minimal width for frame "topfrp". 3227 * When "next_curwin" isn't NULL, use p_wiw for this window. 3228 * When "next_curwin" is NOWIN, don't use at least one column for the current 3229 * window. 3230 */ 3231 static int 3232 frame_minwidth( 3233 frame_T *topfrp, 3234 win_T *next_curwin) /* use p_wh and p_wiw for next_curwin */ 3235 { 3236 frame_T *frp; 3237 int m, n; 3238 3239 if (topfrp->fr_win != NULL) 3240 { 3241 if (topfrp->fr_win == next_curwin) 3242 m = p_wiw + topfrp->fr_win->w_vsep_width; 3243 else 3244 { 3245 /* window: minimal width of the window plus separator column */ 3246 m = p_wmw + topfrp->fr_win->w_vsep_width; 3247 /* Current window is minimal one column wide */ 3248 if (p_wmw == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3249 ++m; 3250 } 3251 } 3252 else if (topfrp->fr_layout == FR_COL) 3253 { 3254 /* get the minimal width from each frame in this column */ 3255 m = 0; 3256 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3257 { 3258 n = frame_minwidth(frp, next_curwin); 3259 if (n > m) 3260 m = n; 3261 } 3262 } 3263 else 3264 { 3265 /* Add up the minimal widths for all frames in this row. */ 3266 m = 0; 3267 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3268 m += frame_minwidth(frp, next_curwin); 3269 } 3270 3271 return m; 3272 } 3273 3274 3275 /* 3276 * Try to close all windows except current one. 3277 * Buffers in the other windows become hidden if 'hidden' is set, or '!' is 3278 * used and the buffer was modified. 3279 * 3280 * Used by ":bdel" and ":only". 3281 */ 3282 void 3283 close_others( 3284 int message, 3285 int forceit) /* always hide all other windows */ 3286 { 3287 win_T *wp; 3288 win_T *nextwp; 3289 int r; 3290 3291 if (one_window()) 3292 { 3293 if (message 3294 #ifdef FEAT_AUTOCMD 3295 && !autocmd_busy 3296 #endif 3297 ) 3298 MSG(_(m_onlyone)); 3299 return; 3300 } 3301 3302 /* Be very careful here: autocommands may change the window layout. */ 3303 for (wp = firstwin; win_valid(wp); wp = nextwp) 3304 { 3305 nextwp = wp->w_next; 3306 if (wp != curwin) /* don't close current window */ 3307 { 3308 3309 /* Check if it's allowed to abandon this window */ 3310 r = can_abandon(wp->w_buffer, forceit); 3311 #ifdef FEAT_AUTOCMD 3312 if (!win_valid(wp)) /* autocommands messed wp up */ 3313 { 3314 nextwp = firstwin; 3315 continue; 3316 } 3317 #endif 3318 if (!r) 3319 { 3320 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 3321 if (message && (p_confirm || cmdmod.confirm) && p_write) 3322 { 3323 dialog_changed(wp->w_buffer, FALSE); 3324 # ifdef FEAT_AUTOCMD 3325 if (!win_valid(wp)) /* autocommands messed wp up */ 3326 { 3327 nextwp = firstwin; 3328 continue; 3329 } 3330 # endif 3331 } 3332 if (bufIsChanged(wp->w_buffer)) 3333 #endif 3334 continue; 3335 } 3336 win_close(wp, !P_HID(wp->w_buffer) && !bufIsChanged(wp->w_buffer)); 3337 } 3338 } 3339 3340 if (message && lastwin != firstwin) 3341 EMSG(_("E445: Other window contains changes")); 3342 } 3343 3344 #endif /* FEAT_WINDOWS */ 3345 3346 /* 3347 * Init the current window "curwin". 3348 * Called when a new file is being edited. 3349 */ 3350 void 3351 curwin_init(void) 3352 { 3353 win_init_empty(curwin); 3354 } 3355 3356 void 3357 win_init_empty(win_T *wp) 3358 { 3359 redraw_win_later(wp, NOT_VALID); 3360 wp->w_lines_valid = 0; 3361 wp->w_cursor.lnum = 1; 3362 wp->w_curswant = wp->w_cursor.col = 0; 3363 #ifdef FEAT_VIRTUALEDIT 3364 wp->w_cursor.coladd = 0; 3365 #endif 3366 wp->w_pcmark.lnum = 1; /* pcmark not cleared but set to line 1 */ 3367 wp->w_pcmark.col = 0; 3368 wp->w_prev_pcmark.lnum = 0; 3369 wp->w_prev_pcmark.col = 0; 3370 wp->w_topline = 1; 3371 #ifdef FEAT_DIFF 3372 wp->w_topfill = 0; 3373 #endif 3374 wp->w_botline = 2; 3375 #ifdef FEAT_FKMAP 3376 if (wp->w_p_rl) 3377 wp->w_farsi = W_CONV + W_R_L; 3378 else 3379 wp->w_farsi = W_CONV; 3380 #endif 3381 #ifdef FEAT_SYN_HL 3382 wp->w_s = &wp->w_buffer->b_s; 3383 #endif 3384 } 3385 3386 /* 3387 * Allocate the first window and put an empty buffer in it. 3388 * Called from main(). 3389 * Return FAIL when something goes wrong (out of memory). 3390 */ 3391 int 3392 win_alloc_first(void) 3393 { 3394 if (win_alloc_firstwin(NULL) == FAIL) 3395 return FAIL; 3396 3397 #ifdef FEAT_WINDOWS 3398 first_tabpage = alloc_tabpage(); 3399 if (first_tabpage == NULL) 3400 return FAIL; 3401 first_tabpage->tp_topframe = topframe; 3402 curtab = first_tabpage; 3403 #endif 3404 3405 return OK; 3406 } 3407 3408 #if defined(FEAT_AUTOCMD) || defined(PROTO) 3409 /* 3410 * Init "aucmd_win". This can only be done after the first 3411 * window is fully initialized, thus it can't be in win_alloc_first(). 3412 */ 3413 void 3414 win_alloc_aucmd_win(void) 3415 { 3416 aucmd_win = win_alloc(NULL, TRUE); 3417 if (aucmd_win != NULL) 3418 { 3419 win_init_some(aucmd_win, curwin); 3420 RESET_BINDING(aucmd_win); 3421 new_frame(aucmd_win); 3422 } 3423 } 3424 #endif 3425 3426 /* 3427 * Allocate the first window or the first window in a new tab page. 3428 * When "oldwin" is NULL create an empty buffer for it. 3429 * When "oldwin" is not NULL copy info from it to the new window (only with 3430 * FEAT_WINDOWS). 3431 * Return FAIL when something goes wrong (out of memory). 3432 */ 3433 static int 3434 win_alloc_firstwin(win_T *oldwin) 3435 { 3436 curwin = win_alloc(NULL, FALSE); 3437 if (oldwin == NULL) 3438 { 3439 /* Very first window, need to create an empty buffer for it and 3440 * initialize from scratch. */ 3441 curbuf = buflist_new(NULL, NULL, 1L, BLN_LISTED); 3442 if (curwin == NULL || curbuf == NULL) 3443 return FAIL; 3444 curwin->w_buffer = curbuf; 3445 #ifdef FEAT_SYN_HL 3446 curwin->w_s = &(curbuf->b_s); 3447 #endif 3448 curbuf->b_nwindows = 1; /* there is one window */ 3449 #ifdef FEAT_WINDOWS 3450 curwin->w_alist = &global_alist; 3451 #endif 3452 curwin_init(); /* init current window */ 3453 } 3454 #ifdef FEAT_WINDOWS 3455 else 3456 { 3457 /* First window in new tab page, initialize it from "oldwin". */ 3458 win_init(curwin, oldwin, 0); 3459 3460 /* We don't want cursor- and scroll-binding in the first window. */ 3461 RESET_BINDING(curwin); 3462 } 3463 #endif 3464 3465 new_frame(curwin); 3466 if (curwin->w_frame == NULL) 3467 return FAIL; 3468 topframe = curwin->w_frame; 3469 #ifdef FEAT_WINDOWS 3470 topframe->fr_width = Columns; 3471 #endif 3472 topframe->fr_height = Rows - p_ch; 3473 topframe->fr_win = curwin; 3474 3475 return OK; 3476 } 3477 3478 /* 3479 * Create a frame for window "wp". 3480 */ 3481 static void 3482 new_frame(win_T *wp) 3483 { 3484 frame_T *frp = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); 3485 3486 wp->w_frame = frp; 3487 if (frp != NULL) 3488 { 3489 frp->fr_layout = FR_LEAF; 3490 frp->fr_win = wp; 3491 } 3492 } 3493 3494 /* 3495 * Initialize the window and frame size to the maximum. 3496 */ 3497 void 3498 win_init_size(void) 3499 { 3500 firstwin->w_height = ROWS_AVAIL; 3501 topframe->fr_height = ROWS_AVAIL; 3502 #ifdef FEAT_WINDOWS 3503 firstwin->w_width = Columns; 3504 topframe->fr_width = Columns; 3505 #endif 3506 } 3507 3508 #if defined(FEAT_WINDOWS) || defined(PROTO) 3509 3510 /* 3511 * Allocate a new tabpage_T and init the values. 3512 * Returns NULL when out of memory. 3513 */ 3514 static tabpage_T * 3515 alloc_tabpage(void) 3516 { 3517 tabpage_T *tp; 3518 # ifdef FEAT_GUI 3519 int i; 3520 # endif 3521 3522 3523 tp = (tabpage_T *)alloc_clear((unsigned)sizeof(tabpage_T)); 3524 if (tp == NULL) 3525 return NULL; 3526 3527 # ifdef FEAT_EVAL 3528 /* init t: variables */ 3529 tp->tp_vars = dict_alloc(); 3530 if (tp->tp_vars == NULL) 3531 { 3532 vim_free(tp); 3533 return NULL; 3534 } 3535 init_var_dict(tp->tp_vars, &tp->tp_winvar, VAR_SCOPE); 3536 # endif 3537 3538 # ifdef FEAT_GUI 3539 for (i = 0; i < 3; i++) 3540 tp->tp_prev_which_scrollbars[i] = -1; 3541 # endif 3542 # ifdef FEAT_DIFF 3543 tp->tp_diff_invalid = TRUE; 3544 # endif 3545 tp->tp_ch_used = p_ch; 3546 3547 return tp; 3548 } 3549 3550 void 3551 free_tabpage(tabpage_T *tp) 3552 { 3553 int idx; 3554 3555 # ifdef FEAT_DIFF 3556 diff_clear(tp); 3557 # endif 3558 for (idx = 0; idx < SNAP_COUNT; ++idx) 3559 clear_snapshot(tp, idx); 3560 #ifdef FEAT_EVAL 3561 vars_clear(&tp->tp_vars->dv_hashtab); /* free all t: variables */ 3562 hash_init(&tp->tp_vars->dv_hashtab); 3563 unref_var_dict(tp->tp_vars); 3564 #endif 3565 3566 #ifdef FEAT_PYTHON 3567 python_tabpage_free(tp); 3568 #endif 3569 3570 #ifdef FEAT_PYTHON3 3571 python3_tabpage_free(tp); 3572 #endif 3573 3574 vim_free(tp); 3575 } 3576 3577 /* 3578 * Create a new Tab page with one window. 3579 * It will edit the current buffer, like after ":split". 3580 * When "after" is 0 put it just after the current Tab page. 3581 * Otherwise put it just before tab page "after". 3582 * Return FAIL or OK. 3583 */ 3584 int 3585 win_new_tabpage(int after) 3586 { 3587 tabpage_T *tp = curtab; 3588 tabpage_T *newtp; 3589 int n; 3590 3591 newtp = alloc_tabpage(); 3592 if (newtp == NULL) 3593 return FAIL; 3594 3595 /* Remember the current windows in this Tab page. */ 3596 if (leave_tabpage(curbuf, TRUE) == FAIL) 3597 { 3598 vim_free(newtp); 3599 return FAIL; 3600 } 3601 curtab = newtp; 3602 3603 /* Create a new empty window. */ 3604 if (win_alloc_firstwin(tp->tp_curwin) == OK) 3605 { 3606 /* Make the new Tab page the new topframe. */ 3607 if (after == 1) 3608 { 3609 /* New tab page becomes the first one. */ 3610 newtp->tp_next = first_tabpage; 3611 first_tabpage = newtp; 3612 } 3613 else 3614 { 3615 if (after > 0) 3616 { 3617 /* Put new tab page before tab page "after". */ 3618 n = 2; 3619 for (tp = first_tabpage; tp->tp_next != NULL 3620 && n < after; tp = tp->tp_next) 3621 ++n; 3622 } 3623 newtp->tp_next = tp->tp_next; 3624 tp->tp_next = newtp; 3625 } 3626 win_init_size(); 3627 firstwin->w_winrow = tabline_height(); 3628 win_comp_scroll(curwin); 3629 3630 newtp->tp_topframe = topframe; 3631 last_status(FALSE); 3632 3633 #if defined(FEAT_GUI) 3634 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 3635 * scrollbars. Have to update them anyway. */ 3636 gui_may_update_scrollbars(); 3637 #endif 3638 3639 redraw_all_later(CLEAR); 3640 #ifdef FEAT_AUTOCMD 3641 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 3642 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 3643 apply_autocmds(EVENT_TABNEW, NULL, NULL, FALSE, curbuf); 3644 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3645 #endif 3646 return OK; 3647 } 3648 3649 /* Failed, get back the previous Tab page */ 3650 enter_tabpage(curtab, curbuf, TRUE, TRUE); 3651 return FAIL; 3652 } 3653 3654 /* 3655 * Open a new tab page if ":tab cmd" was used. It will edit the same buffer, 3656 * like with ":split". 3657 * Returns OK if a new tab page was created, FAIL otherwise. 3658 */ 3659 int 3660 may_open_tabpage(void) 3661 { 3662 int n = (cmdmod.tab == 0) ? postponed_split_tab : cmdmod.tab; 3663 3664 if (n != 0) 3665 { 3666 cmdmod.tab = 0; /* reset it to avoid doing it twice */ 3667 postponed_split_tab = 0; 3668 return win_new_tabpage(n); 3669 } 3670 return FAIL; 3671 } 3672 3673 /* 3674 * Create up to "maxcount" tabpages with empty windows. 3675 * Returns the number of resulting tab pages. 3676 */ 3677 int 3678 make_tabpages(int maxcount) 3679 { 3680 int count = maxcount; 3681 int todo; 3682 3683 /* Limit to 'tabpagemax' tabs. */ 3684 if (count > p_tpm) 3685 count = p_tpm; 3686 3687 #ifdef FEAT_AUTOCMD 3688 /* 3689 * Don't execute autocommands while creating the tab pages. Must do that 3690 * when putting the buffers in the windows. 3691 */ 3692 block_autocmds(); 3693 #endif 3694 3695 for (todo = count - 1; todo > 0; --todo) 3696 if (win_new_tabpage(0) == FAIL) 3697 break; 3698 3699 #ifdef FEAT_AUTOCMD 3700 unblock_autocmds(); 3701 #endif 3702 3703 /* return actual number of tab pages */ 3704 return (count - todo); 3705 } 3706 3707 /* 3708 * Return TRUE when "tpc" points to a valid tab page. 3709 */ 3710 int 3711 valid_tabpage(tabpage_T *tpc) 3712 { 3713 tabpage_T *tp; 3714 3715 FOR_ALL_TABPAGES(tp) 3716 if (tp == tpc) 3717 return TRUE; 3718 return FALSE; 3719 } 3720 3721 /* 3722 * Find tab page "n" (first one is 1). Returns NULL when not found. 3723 */ 3724 tabpage_T * 3725 find_tabpage(int n) 3726 { 3727 tabpage_T *tp; 3728 int i = 1; 3729 3730 for (tp = first_tabpage; tp != NULL && i != n; tp = tp->tp_next) 3731 ++i; 3732 return tp; 3733 } 3734 3735 /* 3736 * Get index of tab page "tp". First one has index 1. 3737 * When not found returns number of tab pages plus one. 3738 */ 3739 int 3740 tabpage_index(tabpage_T *ftp) 3741 { 3742 int i = 1; 3743 tabpage_T *tp; 3744 3745 for (tp = first_tabpage; tp != NULL && tp != ftp; tp = tp->tp_next) 3746 ++i; 3747 return i; 3748 } 3749 3750 /* 3751 * Prepare for leaving the current tab page. 3752 * When autocommands change "curtab" we don't leave the tab page and return 3753 * FAIL. 3754 * Careful: When OK is returned need to get a new tab page very very soon! 3755 */ 3756 static int 3757 leave_tabpage( 3758 buf_T *new_curbuf UNUSED, /* what is going to be the new curbuf, 3759 NULL if unknown */ 3760 int trigger_leave_autocmds UNUSED) 3761 { 3762 tabpage_T *tp = curtab; 3763 3764 reset_VIsual_and_resel(); /* stop Visual mode */ 3765 #ifdef FEAT_AUTOCMD 3766 if (trigger_leave_autocmds) 3767 { 3768 if (new_curbuf != curbuf) 3769 { 3770 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 3771 if (curtab != tp) 3772 return FAIL; 3773 } 3774 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 3775 if (curtab != tp) 3776 return FAIL; 3777 apply_autocmds(EVENT_TABLEAVE, NULL, NULL, FALSE, curbuf); 3778 if (curtab != tp) 3779 return FAIL; 3780 } 3781 #endif 3782 #if defined(FEAT_GUI) 3783 /* Remove the scrollbars. They may be added back later. */ 3784 if (gui.in_use) 3785 gui_remove_scrollbars(); 3786 #endif 3787 tp->tp_curwin = curwin; 3788 tp->tp_prevwin = prevwin; 3789 tp->tp_firstwin = firstwin; 3790 tp->tp_lastwin = lastwin; 3791 tp->tp_old_Rows = Rows; 3792 tp->tp_old_Columns = Columns; 3793 firstwin = NULL; 3794 lastwin = NULL; 3795 return OK; 3796 } 3797 3798 /* 3799 * Start using tab page "tp". 3800 * Only to be used after leave_tabpage() or freeing the current tab page. 3801 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 3802 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 3803 */ 3804 static void 3805 enter_tabpage( 3806 tabpage_T *tp, 3807 buf_T *old_curbuf UNUSED, 3808 int trigger_enter_autocmds, 3809 int trigger_leave_autocmds) 3810 { 3811 int old_off = tp->tp_firstwin->w_winrow; 3812 win_T *next_prevwin = tp->tp_prevwin; 3813 3814 curtab = tp; 3815 firstwin = tp->tp_firstwin; 3816 lastwin = tp->tp_lastwin; 3817 topframe = tp->tp_topframe; 3818 3819 /* We would like doing the TabEnter event first, but we don't have a 3820 * valid current window yet, which may break some commands. 3821 * This triggers autocommands, thus may make "tp" invalid. */ 3822 win_enter_ext(tp->tp_curwin, FALSE, TRUE, FALSE, 3823 trigger_enter_autocmds, trigger_leave_autocmds); 3824 prevwin = next_prevwin; 3825 3826 last_status(FALSE); /* status line may appear or disappear */ 3827 (void)win_comp_pos(); /* recompute w_winrow for all windows */ 3828 must_redraw = CLEAR; /* need to redraw everything */ 3829 #ifdef FEAT_DIFF 3830 diff_need_scrollbind = TRUE; 3831 #endif 3832 3833 /* The tabpage line may have appeared or disappeared, may need to resize 3834 * the frames for that. When the Vim window was resized need to update 3835 * frame sizes too. Use the stored value of p_ch, so that it can be 3836 * different for each tab page. */ 3837 p_ch = curtab->tp_ch_used; 3838 if (curtab->tp_old_Rows != Rows || (old_off != firstwin->w_winrow 3839 #ifdef FEAT_GUI_TABLINE 3840 && !gui_use_tabline() 3841 #endif 3842 )) 3843 shell_new_rows(); 3844 if (curtab->tp_old_Columns != Columns && starting == 0) 3845 shell_new_columns(); /* update window widths */ 3846 3847 #if defined(FEAT_GUI) 3848 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 3849 * scrollbars. Have to update them anyway. */ 3850 gui_may_update_scrollbars(); 3851 #endif 3852 3853 #ifdef FEAT_AUTOCMD 3854 /* Apply autocommands after updating the display, when 'rows' and 3855 * 'columns' have been set correctly. */ 3856 if (trigger_enter_autocmds) 3857 { 3858 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3859 if (old_curbuf != curbuf) 3860 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 3861 } 3862 #endif 3863 3864 redraw_all_later(CLEAR); 3865 } 3866 3867 /* 3868 * Go to tab page "n". For ":tab N" and "Ngt". 3869 * When "n" is 9999 go to the last tab page. 3870 */ 3871 void 3872 goto_tabpage(int n) 3873 { 3874 tabpage_T *tp; 3875 tabpage_T *ttp; 3876 int i; 3877 3878 if (text_locked()) 3879 { 3880 /* Not allowed when editing the command line. */ 3881 #ifdef FEAT_CMDWIN 3882 if (cmdwin_type != 0) 3883 EMSG(_(e_cmdwin)); 3884 else 3885 #endif 3886 EMSG(_(e_secure)); 3887 return; 3888 } 3889 3890 /* If there is only one it can't work. */ 3891 if (first_tabpage->tp_next == NULL) 3892 { 3893 if (n > 1) 3894 beep_flush(); 3895 return; 3896 } 3897 3898 if (n == 0) 3899 { 3900 /* No count, go to next tab page, wrap around end. */ 3901 if (curtab->tp_next == NULL) 3902 tp = first_tabpage; 3903 else 3904 tp = curtab->tp_next; 3905 } 3906 else if (n < 0) 3907 { 3908 /* "gT": go to previous tab page, wrap around end. "N gT" repeats 3909 * this N times. */ 3910 ttp = curtab; 3911 for (i = n; i < 0; ++i) 3912 { 3913 for (tp = first_tabpage; tp->tp_next != ttp && tp->tp_next != NULL; 3914 tp = tp->tp_next) 3915 ; 3916 ttp = tp; 3917 } 3918 } 3919 else if (n == 9999) 3920 { 3921 /* Go to last tab page. */ 3922 for (tp = first_tabpage; tp->tp_next != NULL; tp = tp->tp_next) 3923 ; 3924 } 3925 else 3926 { 3927 /* Go to tab page "n". */ 3928 tp = find_tabpage(n); 3929 if (tp == NULL) 3930 { 3931 beep_flush(); 3932 return; 3933 } 3934 } 3935 3936 goto_tabpage_tp(tp, TRUE, TRUE); 3937 3938 #ifdef FEAT_GUI_TABLINE 3939 if (gui_use_tabline()) 3940 gui_mch_set_curtab(tabpage_index(curtab)); 3941 #endif 3942 } 3943 3944 /* 3945 * Go to tabpage "tp". 3946 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 3947 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 3948 * Note: doesn't update the GUI tab. 3949 */ 3950 void 3951 goto_tabpage_tp( 3952 tabpage_T *tp, 3953 int trigger_enter_autocmds, 3954 int trigger_leave_autocmds) 3955 { 3956 /* Don't repeat a message in another tab page. */ 3957 set_keep_msg(NULL, 0); 3958 3959 if (tp != curtab && leave_tabpage(tp->tp_curwin->w_buffer, 3960 trigger_leave_autocmds) == OK) 3961 { 3962 if (valid_tabpage(tp)) 3963 enter_tabpage(tp, curbuf, trigger_enter_autocmds, 3964 trigger_leave_autocmds); 3965 else 3966 enter_tabpage(curtab, curbuf, trigger_enter_autocmds, 3967 trigger_leave_autocmds); 3968 } 3969 } 3970 3971 /* 3972 * Enter window "wp" in tab page "tp". 3973 * Also updates the GUI tab. 3974 */ 3975 void 3976 goto_tabpage_win(tabpage_T *tp, win_T *wp) 3977 { 3978 goto_tabpage_tp(tp, TRUE, TRUE); 3979 if (curtab == tp && win_valid(wp)) 3980 { 3981 win_enter(wp, TRUE); 3982 # ifdef FEAT_GUI_TABLINE 3983 if (gui_use_tabline()) 3984 gui_mch_set_curtab(tabpage_index(curtab)); 3985 # endif 3986 } 3987 } 3988 3989 /* 3990 * Move the current tab page to after tab page "nr". 3991 */ 3992 void 3993 tabpage_move(int nr) 3994 { 3995 int n = 1; 3996 tabpage_T *tp, *tp_dst; 3997 3998 if (first_tabpage->tp_next == NULL) 3999 return; 4000 4001 for (tp = first_tabpage; tp->tp_next != NULL && n < nr; tp = tp->tp_next) 4002 ++n; 4003 4004 if (tp == curtab || (nr > 0 && tp->tp_next != NULL 4005 && tp->tp_next == curtab)) 4006 return; 4007 4008 tp_dst = tp; 4009 4010 /* Remove the current tab page from the list of tab pages. */ 4011 if (curtab == first_tabpage) 4012 first_tabpage = curtab->tp_next; 4013 else 4014 { 4015 FOR_ALL_TABPAGES(tp) 4016 if (tp->tp_next == curtab) 4017 break; 4018 if (tp == NULL) /* "cannot happen" */ 4019 return; 4020 tp->tp_next = curtab->tp_next; 4021 } 4022 4023 /* Re-insert it at the specified position. */ 4024 if (nr <= 0) 4025 { 4026 curtab->tp_next = first_tabpage; 4027 first_tabpage = curtab; 4028 } 4029 else 4030 { 4031 curtab->tp_next = tp_dst->tp_next; 4032 tp_dst->tp_next = curtab; 4033 } 4034 4035 /* Need to redraw the tabline. Tab page contents doesn't change. */ 4036 redraw_tabline = TRUE; 4037 } 4038 4039 4040 /* 4041 * Go to another window. 4042 * When jumping to another buffer, stop Visual mode. Do this before 4043 * changing windows so we can yank the selection into the '*' register. 4044 * When jumping to another window on the same buffer, adjust its cursor 4045 * position to keep the same Visual area. 4046 */ 4047 void 4048 win_goto(win_T *wp) 4049 { 4050 #ifdef FEAT_CONCEAL 4051 win_T *owp = curwin; 4052 #endif 4053 4054 if (text_locked()) 4055 { 4056 beep_flush(); 4057 text_locked_msg(); 4058 return; 4059 } 4060 #ifdef FEAT_AUTOCMD 4061 if (curbuf_locked()) 4062 return; 4063 #endif 4064 4065 if (wp->w_buffer != curbuf) 4066 reset_VIsual_and_resel(); 4067 else if (VIsual_active) 4068 wp->w_cursor = curwin->w_cursor; 4069 4070 #ifdef FEAT_GUI 4071 need_mouse_correct = TRUE; 4072 #endif 4073 win_enter(wp, TRUE); 4074 4075 #ifdef FEAT_CONCEAL 4076 /* Conceal cursor line in previous window, unconceal in current window. */ 4077 if (win_valid(owp) && owp->w_p_cole > 0 && !msg_scrolled) 4078 update_single_line(owp, owp->w_cursor.lnum); 4079 if (curwin->w_p_cole > 0 && !msg_scrolled) 4080 need_cursor_line_redraw = TRUE; 4081 #endif 4082 } 4083 4084 #if defined(FEAT_PERL) || defined(PROTO) 4085 /* 4086 * Find window number "winnr" (counting top to bottom). 4087 */ 4088 win_T * 4089 win_find_nr(int winnr) 4090 { 4091 win_T *wp; 4092 4093 # ifdef FEAT_WINDOWS 4094 FOR_ALL_WINDOWS(wp) 4095 if (--winnr == 0) 4096 break; 4097 return wp; 4098 # else 4099 return curwin; 4100 # endif 4101 } 4102 #endif 4103 4104 #if (defined(FEAT_WINDOWS) && (defined(FEAT_PYTHON) || defined(FEAT_PYTHON3))) \ 4105 || defined(PROTO) 4106 /* 4107 * Find the tabpage for window "win". 4108 */ 4109 tabpage_T * 4110 win_find_tabpage(win_T *win) 4111 { 4112 win_T *wp; 4113 tabpage_T *tp; 4114 4115 FOR_ALL_TAB_WINDOWS(tp, wp) 4116 if (wp == win) 4117 return tp; 4118 return NULL; 4119 } 4120 #endif 4121 4122 /* 4123 * Move to window above or below "count" times. 4124 */ 4125 static void 4126 win_goto_ver( 4127 int up, /* TRUE to go to win above */ 4128 long count) 4129 { 4130 frame_T *fr; 4131 frame_T *nfr; 4132 frame_T *foundfr; 4133 4134 foundfr = curwin->w_frame; 4135 while (count--) 4136 { 4137 /* 4138 * First go upwards in the tree of frames until we find a upwards or 4139 * downwards neighbor. 4140 */ 4141 fr = foundfr; 4142 for (;;) 4143 { 4144 if (fr == topframe) 4145 goto end; 4146 if (up) 4147 nfr = fr->fr_prev; 4148 else 4149 nfr = fr->fr_next; 4150 if (fr->fr_parent->fr_layout == FR_COL && nfr != NULL) 4151 break; 4152 fr = fr->fr_parent; 4153 } 4154 4155 /* 4156 * Now go downwards to find the bottom or top frame in it. 4157 */ 4158 for (;;) 4159 { 4160 if (nfr->fr_layout == FR_LEAF) 4161 { 4162 foundfr = nfr; 4163 break; 4164 } 4165 fr = nfr->fr_child; 4166 if (nfr->fr_layout == FR_ROW) 4167 { 4168 /* Find the frame at the cursor row. */ 4169 while (fr->fr_next != NULL 4170 && frame2win(fr)->w_wincol + fr->fr_width 4171 <= curwin->w_wincol + curwin->w_wcol) 4172 fr = fr->fr_next; 4173 } 4174 if (nfr->fr_layout == FR_COL && up) 4175 while (fr->fr_next != NULL) 4176 fr = fr->fr_next; 4177 nfr = fr; 4178 } 4179 } 4180 end: 4181 if (foundfr != NULL) 4182 win_goto(foundfr->fr_win); 4183 } 4184 4185 /* 4186 * Move to left or right window. 4187 */ 4188 static void 4189 win_goto_hor( 4190 int left, /* TRUE to go to left win */ 4191 long count) 4192 { 4193 frame_T *fr; 4194 frame_T *nfr; 4195 frame_T *foundfr; 4196 4197 foundfr = curwin->w_frame; 4198 while (count--) 4199 { 4200 /* 4201 * First go upwards in the tree of frames until we find a left or 4202 * right neighbor. 4203 */ 4204 fr = foundfr; 4205 for (;;) 4206 { 4207 if (fr == topframe) 4208 goto end; 4209 if (left) 4210 nfr = fr->fr_prev; 4211 else 4212 nfr = fr->fr_next; 4213 if (fr->fr_parent->fr_layout == FR_ROW && nfr != NULL) 4214 break; 4215 fr = fr->fr_parent; 4216 } 4217 4218 /* 4219 * Now go downwards to find the leftmost or rightmost frame in it. 4220 */ 4221 for (;;) 4222 { 4223 if (nfr->fr_layout == FR_LEAF) 4224 { 4225 foundfr = nfr; 4226 break; 4227 } 4228 fr = nfr->fr_child; 4229 if (nfr->fr_layout == FR_COL) 4230 { 4231 /* Find the frame at the cursor row. */ 4232 while (fr->fr_next != NULL 4233 && frame2win(fr)->w_winrow + fr->fr_height 4234 <= curwin->w_winrow + curwin->w_wrow) 4235 fr = fr->fr_next; 4236 } 4237 if (nfr->fr_layout == FR_ROW && left) 4238 while (fr->fr_next != NULL) 4239 fr = fr->fr_next; 4240 nfr = fr; 4241 } 4242 } 4243 end: 4244 if (foundfr != NULL) 4245 win_goto(foundfr->fr_win); 4246 } 4247 4248 /* 4249 * Make window "wp" the current window. 4250 */ 4251 void 4252 win_enter(win_T *wp, int undo_sync) 4253 { 4254 win_enter_ext(wp, undo_sync, FALSE, FALSE, TRUE, TRUE); 4255 } 4256 4257 /* 4258 * Make window wp the current window. 4259 * Can be called with "curwin_invalid" TRUE, which means that curwin has just 4260 * been closed and isn't valid. 4261 */ 4262 static void 4263 win_enter_ext( 4264 win_T *wp, 4265 int undo_sync, 4266 int curwin_invalid, 4267 int trigger_new_autocmds UNUSED, 4268 int trigger_enter_autocmds UNUSED, 4269 int trigger_leave_autocmds UNUSED) 4270 { 4271 #ifdef FEAT_AUTOCMD 4272 int other_buffer = FALSE; 4273 #endif 4274 4275 if (wp == curwin && !curwin_invalid) /* nothing to do */ 4276 return; 4277 4278 #ifdef FEAT_AUTOCMD 4279 if (!curwin_invalid && trigger_leave_autocmds) 4280 { 4281 /* 4282 * Be careful: If autocommands delete the window, return now. 4283 */ 4284 if (wp->w_buffer != curbuf) 4285 { 4286 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4287 other_buffer = TRUE; 4288 if (!win_valid(wp)) 4289 return; 4290 } 4291 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4292 if (!win_valid(wp)) 4293 return; 4294 # ifdef FEAT_EVAL 4295 /* autocmds may abort script processing */ 4296 if (aborting()) 4297 return; 4298 # endif 4299 } 4300 #endif 4301 4302 /* sync undo before leaving the current buffer */ 4303 if (undo_sync && curbuf != wp->w_buffer) 4304 u_sync(FALSE); 4305 4306 /* Might need to scroll the old window before switching, e.g., when the 4307 * cursor was moved. */ 4308 update_topline(); 4309 4310 /* may have to copy the buffer options when 'cpo' contains 'S' */ 4311 if (wp->w_buffer != curbuf) 4312 buf_copy_options(wp->w_buffer, BCO_ENTER | BCO_NOHELP); 4313 if (!curwin_invalid) 4314 { 4315 prevwin = curwin; /* remember for CTRL-W p */ 4316 curwin->w_redr_status = TRUE; 4317 } 4318 curwin = wp; 4319 curbuf = wp->w_buffer; 4320 check_cursor(); 4321 #ifdef FEAT_VIRTUALEDIT 4322 if (!virtual_active()) 4323 curwin->w_cursor.coladd = 0; 4324 #endif 4325 changed_line_abv_curs(); /* assume cursor position needs updating */ 4326 4327 if (curwin->w_localdir != NULL) 4328 { 4329 /* Window has a local directory: Save current directory as global 4330 * directory (unless that was done already) and change to the local 4331 * directory. */ 4332 if (globaldir == NULL) 4333 { 4334 char_u cwd[MAXPATHL]; 4335 4336 if (mch_dirname(cwd, MAXPATHL) == OK) 4337 globaldir = vim_strsave(cwd); 4338 } 4339 if (mch_chdir((char *)curwin->w_localdir) == 0) 4340 shorten_fnames(TRUE); 4341 } 4342 else if (globaldir != NULL) 4343 { 4344 /* Window doesn't have a local directory and we are not in the global 4345 * directory: Change to the global directory. */ 4346 ignored = mch_chdir((char *)globaldir); 4347 vim_free(globaldir); 4348 globaldir = NULL; 4349 shorten_fnames(TRUE); 4350 } 4351 4352 #ifdef FEAT_AUTOCMD 4353 if (trigger_new_autocmds) 4354 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 4355 if (trigger_enter_autocmds) 4356 { 4357 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 4358 if (other_buffer) 4359 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4360 } 4361 #endif 4362 4363 #ifdef FEAT_TITLE 4364 maketitle(); 4365 #endif 4366 curwin->w_redr_status = TRUE; 4367 redraw_tabline = TRUE; 4368 if (restart_edit) 4369 redraw_later(VALID); /* causes status line redraw */ 4370 4371 /* set window height to desired minimal value */ 4372 if (curwin->w_height < p_wh && !curwin->w_p_wfh) 4373 win_setheight((int)p_wh); 4374 else if (curwin->w_height == 0) 4375 win_setheight(1); 4376 4377 /* set window width to desired minimal value */ 4378 if (curwin->w_width < p_wiw && !curwin->w_p_wfw) 4379 win_setwidth((int)p_wiw); 4380 4381 #ifdef FEAT_MOUSE 4382 setmouse(); /* in case jumped to/from help buffer */ 4383 #endif 4384 4385 /* Change directories when the 'acd' option is set. */ 4386 DO_AUTOCHDIR 4387 } 4388 4389 #endif /* FEAT_WINDOWS */ 4390 4391 #if defined(FEAT_WINDOWS) || defined(FEAT_SIGNS) || defined(PROTO) 4392 /* 4393 * Jump to the first open window that contains buffer "buf", if one exists. 4394 * Returns a pointer to the window found, otherwise NULL. 4395 */ 4396 win_T * 4397 buf_jump_open_win(buf_T *buf) 4398 { 4399 win_T *wp = NULL; 4400 4401 if (curwin->w_buffer == buf) 4402 wp = curwin; 4403 # ifdef FEAT_WINDOWS 4404 else 4405 FOR_ALL_WINDOWS(wp) 4406 if (wp->w_buffer == buf) 4407 break; 4408 if (wp != NULL) 4409 win_enter(wp, FALSE); 4410 # endif 4411 return wp; 4412 } 4413 4414 /* 4415 * Jump to the first open window in any tab page that contains buffer "buf", 4416 * if one exists. 4417 * Returns a pointer to the window found, otherwise NULL. 4418 */ 4419 win_T * 4420 buf_jump_open_tab(buf_T *buf) 4421 { 4422 win_T *wp = buf_jump_open_win(buf); 4423 # ifdef FEAT_WINDOWS 4424 tabpage_T *tp; 4425 4426 if (wp != NULL) 4427 return wp; 4428 4429 FOR_ALL_TABPAGES(tp) 4430 if (tp != curtab) 4431 { 4432 for (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next) 4433 if (wp->w_buffer == buf) 4434 break; 4435 if (wp != NULL) 4436 { 4437 goto_tabpage_win(tp, wp); 4438 if (curwin != wp) 4439 wp = NULL; /* something went wrong */ 4440 break; 4441 } 4442 } 4443 # endif 4444 return wp; 4445 } 4446 #endif 4447 4448 static int last_win_id = LOWEST_WIN_ID - 1; 4449 4450 /* 4451 * Allocate a window structure and link it in the window list when "hidden" is 4452 * FALSE. 4453 */ 4454 static win_T * 4455 win_alloc(win_T *after UNUSED, int hidden UNUSED) 4456 { 4457 win_T *new_wp; 4458 4459 /* 4460 * allocate window structure and linesizes arrays 4461 */ 4462 new_wp = (win_T *)alloc_clear((unsigned)sizeof(win_T)); 4463 if (new_wp == NULL) 4464 return NULL; 4465 4466 if (win_alloc_lines(new_wp) == FAIL) 4467 { 4468 vim_free(new_wp); 4469 return NULL; 4470 } 4471 4472 new_wp->w_id = ++last_win_id; 4473 4474 #ifdef FEAT_EVAL 4475 /* init w: variables */ 4476 new_wp->w_vars = dict_alloc(); 4477 if (new_wp->w_vars == NULL) 4478 { 4479 win_free_lsize(new_wp); 4480 vim_free(new_wp); 4481 return NULL; 4482 } 4483 init_var_dict(new_wp->w_vars, &new_wp->w_winvar, VAR_SCOPE); 4484 #endif 4485 4486 #ifdef FEAT_AUTOCMD 4487 /* Don't execute autocommands while the window is not properly 4488 * initialized yet. gui_create_scrollbar() may trigger a FocusGained 4489 * event. */ 4490 block_autocmds(); 4491 #endif 4492 /* 4493 * link the window in the window list 4494 */ 4495 #ifdef FEAT_WINDOWS 4496 if (!hidden) 4497 win_append(after, new_wp); 4498 new_wp->w_wincol = 0; 4499 new_wp->w_width = Columns; 4500 #endif 4501 4502 /* position the display and the cursor at the top of the file. */ 4503 new_wp->w_topline = 1; 4504 #ifdef FEAT_DIFF 4505 new_wp->w_topfill = 0; 4506 #endif 4507 new_wp->w_botline = 2; 4508 new_wp->w_cursor.lnum = 1; 4509 #ifdef FEAT_SCROLLBIND 4510 new_wp->w_scbind_pos = 1; 4511 #endif 4512 4513 /* We won't calculate w_fraction until resizing the window */ 4514 new_wp->w_fraction = 0; 4515 new_wp->w_prev_fraction_row = -1; 4516 4517 #ifdef FEAT_GUI 4518 if (gui.in_use) 4519 { 4520 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_LEFT], 4521 SBAR_LEFT, new_wp); 4522 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_RIGHT], 4523 SBAR_RIGHT, new_wp); 4524 } 4525 #endif 4526 #ifdef FEAT_FOLDING 4527 foldInitWin(new_wp); 4528 #endif 4529 #ifdef FEAT_AUTOCMD 4530 unblock_autocmds(); 4531 #endif 4532 #ifdef FEAT_SEARCH_EXTRA 4533 new_wp->w_match_head = NULL; 4534 new_wp->w_next_match_id = 4; 4535 #endif 4536 return new_wp; 4537 } 4538 4539 #if defined(FEAT_WINDOWS) || defined(PROTO) 4540 4541 /* 4542 * Remove window 'wp' from the window list and free the structure. 4543 */ 4544 static void 4545 win_free( 4546 win_T *wp, 4547 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 4548 { 4549 int i; 4550 buf_T *buf; 4551 wininfo_T *wip; 4552 4553 #ifdef FEAT_FOLDING 4554 clearFolding(wp); 4555 #endif 4556 4557 /* reduce the reference count to the argument list. */ 4558 alist_unlink(wp->w_alist); 4559 4560 #ifdef FEAT_AUTOCMD 4561 /* Don't execute autocommands while the window is halfway being deleted. 4562 * gui_mch_destroy_scrollbar() may trigger a FocusGained event. */ 4563 block_autocmds(); 4564 #endif 4565 4566 #ifdef FEAT_LUA 4567 lua_window_free(wp); 4568 #endif 4569 4570 #ifdef FEAT_MZSCHEME 4571 mzscheme_window_free(wp); 4572 #endif 4573 4574 #ifdef FEAT_PERL 4575 perl_win_free(wp); 4576 #endif 4577 4578 #ifdef FEAT_PYTHON 4579 python_window_free(wp); 4580 #endif 4581 4582 #ifdef FEAT_PYTHON3 4583 python3_window_free(wp); 4584 #endif 4585 4586 #ifdef FEAT_TCL 4587 tcl_window_free(wp); 4588 #endif 4589 4590 #ifdef FEAT_RUBY 4591 ruby_window_free(wp); 4592 #endif 4593 4594 clear_winopt(&wp->w_onebuf_opt); 4595 clear_winopt(&wp->w_allbuf_opt); 4596 4597 #ifdef FEAT_EVAL 4598 vars_clear(&wp->w_vars->dv_hashtab); /* free all w: variables */ 4599 hash_init(&wp->w_vars->dv_hashtab); 4600 unref_var_dict(wp->w_vars); 4601 #endif 4602 4603 { 4604 tabpage_T *ttp; 4605 4606 if (prevwin == wp) 4607 prevwin = NULL; 4608 FOR_ALL_TABPAGES(ttp) 4609 if (ttp->tp_prevwin == wp) 4610 ttp->tp_prevwin = NULL; 4611 } 4612 win_free_lsize(wp); 4613 4614 for (i = 0; i < wp->w_tagstacklen; ++i) 4615 vim_free(wp->w_tagstack[i].tagname); 4616 4617 vim_free(wp->w_localdir); 4618 4619 /* Remove the window from the b_wininfo lists, it may happen that the 4620 * freed memory is re-used for another window. */ 4621 FOR_ALL_BUFFERS(buf) 4622 for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) 4623 if (wip->wi_win == wp) 4624 wip->wi_win = NULL; 4625 4626 #ifdef FEAT_SEARCH_EXTRA 4627 clear_matches(wp); 4628 #endif 4629 4630 #ifdef FEAT_JUMPLIST 4631 free_jumplist(wp); 4632 #endif 4633 4634 #ifdef FEAT_QUICKFIX 4635 qf_free_all(wp); 4636 #endif 4637 4638 #ifdef FEAT_GUI 4639 if (gui.in_use) 4640 { 4641 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_LEFT]); 4642 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_RIGHT]); 4643 } 4644 #endif /* FEAT_GUI */ 4645 4646 #ifdef FEAT_SYN_HL 4647 vim_free(wp->w_p_cc_cols); 4648 #endif 4649 4650 #ifdef FEAT_AUTOCMD 4651 if (wp != aucmd_win) 4652 #endif 4653 win_remove(wp, tp); 4654 #ifdef FEAT_AUTOCMD 4655 if (autocmd_busy) 4656 { 4657 wp->w_next = au_pending_free_win; 4658 au_pending_free_win = wp; 4659 } 4660 else 4661 #endif 4662 vim_free(wp); 4663 4664 #ifdef FEAT_AUTOCMD 4665 unblock_autocmds(); 4666 #endif 4667 } 4668 4669 /* 4670 * Append window "wp" in the window list after window "after". 4671 */ 4672 void 4673 win_append(win_T *after, win_T *wp) 4674 { 4675 win_T *before; 4676 4677 if (after == NULL) /* after NULL is in front of the first */ 4678 before = firstwin; 4679 else 4680 before = after->w_next; 4681 4682 wp->w_next = before; 4683 wp->w_prev = after; 4684 if (after == NULL) 4685 firstwin = wp; 4686 else 4687 after->w_next = wp; 4688 if (before == NULL) 4689 lastwin = wp; 4690 else 4691 before->w_prev = wp; 4692 } 4693 4694 /* 4695 * Remove a window from the window list. 4696 */ 4697 void 4698 win_remove( 4699 win_T *wp, 4700 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 4701 { 4702 if (wp->w_prev != NULL) 4703 wp->w_prev->w_next = wp->w_next; 4704 else if (tp == NULL) 4705 firstwin = wp->w_next; 4706 else 4707 tp->tp_firstwin = wp->w_next; 4708 if (wp->w_next != NULL) 4709 wp->w_next->w_prev = wp->w_prev; 4710 else if (tp == NULL) 4711 lastwin = wp->w_prev; 4712 else 4713 tp->tp_lastwin = wp->w_prev; 4714 } 4715 4716 /* 4717 * Append frame "frp" in a frame list after frame "after". 4718 */ 4719 static void 4720 frame_append(frame_T *after, frame_T *frp) 4721 { 4722 frp->fr_next = after->fr_next; 4723 after->fr_next = frp; 4724 if (frp->fr_next != NULL) 4725 frp->fr_next->fr_prev = frp; 4726 frp->fr_prev = after; 4727 } 4728 4729 /* 4730 * Insert frame "frp" in a frame list before frame "before". 4731 */ 4732 static void 4733 frame_insert(frame_T *before, frame_T *frp) 4734 { 4735 frp->fr_next = before; 4736 frp->fr_prev = before->fr_prev; 4737 before->fr_prev = frp; 4738 if (frp->fr_prev != NULL) 4739 frp->fr_prev->fr_next = frp; 4740 else 4741 frp->fr_parent->fr_child = frp; 4742 } 4743 4744 /* 4745 * Remove a frame from a frame list. 4746 */ 4747 static void 4748 frame_remove(frame_T *frp) 4749 { 4750 if (frp->fr_prev != NULL) 4751 frp->fr_prev->fr_next = frp->fr_next; 4752 else 4753 frp->fr_parent->fr_child = frp->fr_next; 4754 if (frp->fr_next != NULL) 4755 frp->fr_next->fr_prev = frp->fr_prev; 4756 } 4757 4758 #endif /* FEAT_WINDOWS */ 4759 4760 /* 4761 * Allocate w_lines[] for window "wp". 4762 * Return FAIL for failure, OK for success. 4763 */ 4764 int 4765 win_alloc_lines(win_T *wp) 4766 { 4767 wp->w_lines_valid = 0; 4768 wp->w_lines = (wline_T *)alloc_clear((unsigned)(Rows * sizeof(wline_T))); 4769 if (wp->w_lines == NULL) 4770 return FAIL; 4771 return OK; 4772 } 4773 4774 /* 4775 * free lsize arrays for a window 4776 */ 4777 void 4778 win_free_lsize(win_T *wp) 4779 { 4780 /* TODO: why would wp be NULL here? */ 4781 if (wp != NULL) 4782 { 4783 vim_free(wp->w_lines); 4784 wp->w_lines = NULL; 4785 } 4786 } 4787 4788 /* 4789 * Called from win_new_shellsize() after Rows changed. 4790 * This only does the current tab page, others must be done when made active. 4791 */ 4792 void 4793 shell_new_rows(void) 4794 { 4795 int h = (int)ROWS_AVAIL; 4796 4797 if (firstwin == NULL) /* not initialized yet */ 4798 return; 4799 #ifdef FEAT_WINDOWS 4800 if (h < frame_minheight(topframe, NULL)) 4801 h = frame_minheight(topframe, NULL); 4802 4803 /* First try setting the heights of windows with 'winfixheight'. If 4804 * that doesn't result in the right height, forget about that option. */ 4805 frame_new_height(topframe, h, FALSE, TRUE); 4806 if (!frame_check_height(topframe, h)) 4807 frame_new_height(topframe, h, FALSE, FALSE); 4808 4809 (void)win_comp_pos(); /* recompute w_winrow and w_wincol */ 4810 #else 4811 if (h < 1) 4812 h = 1; 4813 win_new_height(firstwin, h); 4814 #endif 4815 compute_cmdrow(); 4816 #ifdef FEAT_WINDOWS 4817 curtab->tp_ch_used = p_ch; 4818 #endif 4819 4820 #if 0 4821 /* Disabled: don't want making the screen smaller make a window larger. */ 4822 if (p_ea) 4823 win_equal(curwin, FALSE, 'v'); 4824 #endif 4825 } 4826 4827 #if defined(FEAT_WINDOWS) || defined(PROTO) 4828 /* 4829 * Called from win_new_shellsize() after Columns changed. 4830 */ 4831 void 4832 shell_new_columns(void) 4833 { 4834 if (firstwin == NULL) /* not initialized yet */ 4835 return; 4836 4837 /* First try setting the widths of windows with 'winfixwidth'. If that 4838 * doesn't result in the right width, forget about that option. */ 4839 frame_new_width(topframe, (int)Columns, FALSE, TRUE); 4840 if (!frame_check_width(topframe, Columns)) 4841 frame_new_width(topframe, (int)Columns, FALSE, FALSE); 4842 4843 (void)win_comp_pos(); /* recompute w_winrow and w_wincol */ 4844 #if 0 4845 /* Disabled: don't want making the screen smaller make a window larger. */ 4846 if (p_ea) 4847 win_equal(curwin, FALSE, 'h'); 4848 #endif 4849 } 4850 #endif 4851 4852 #if defined(FEAT_CMDWIN) || defined(PROTO) 4853 /* 4854 * Save the size of all windows in "gap". 4855 */ 4856 void 4857 win_size_save(garray_T *gap) 4858 4859 { 4860 win_T *wp; 4861 4862 ga_init2(gap, (int)sizeof(int), 1); 4863 if (ga_grow(gap, win_count() * 2) == OK) 4864 FOR_ALL_WINDOWS(wp) 4865 { 4866 ((int *)gap->ga_data)[gap->ga_len++] = 4867 wp->w_width + wp->w_vsep_width; 4868 ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height; 4869 } 4870 } 4871 4872 /* 4873 * Restore window sizes, but only if the number of windows is still the same. 4874 * Does not free the growarray. 4875 */ 4876 void 4877 win_size_restore(garray_T *gap) 4878 { 4879 win_T *wp; 4880 int i, j; 4881 4882 if (win_count() * 2 == gap->ga_len) 4883 { 4884 /* The order matters, because frames contain other frames, but it's 4885 * difficult to get right. The easy way out is to do it twice. */ 4886 for (j = 0; j < 2; ++j) 4887 { 4888 i = 0; 4889 FOR_ALL_WINDOWS(wp) 4890 { 4891 frame_setwidth(wp->w_frame, ((int *)gap->ga_data)[i++]); 4892 win_setheight_win(((int *)gap->ga_data)[i++], wp); 4893 } 4894 } 4895 /* recompute the window positions */ 4896 (void)win_comp_pos(); 4897 } 4898 } 4899 #endif /* FEAT_CMDWIN */ 4900 4901 #if defined(FEAT_WINDOWS) || defined(PROTO) 4902 /* 4903 * Update the position for all windows, using the width and height of the 4904 * frames. 4905 * Returns the row just after the last window. 4906 */ 4907 int 4908 win_comp_pos(void) 4909 { 4910 int row = tabline_height(); 4911 int col = 0; 4912 4913 frame_comp_pos(topframe, &row, &col); 4914 return row; 4915 } 4916 4917 /* 4918 * Update the position of the windows in frame "topfrp", using the width and 4919 * height of the frames. 4920 * "*row" and "*col" are the top-left position of the frame. They are updated 4921 * to the bottom-right position plus one. 4922 */ 4923 static void 4924 frame_comp_pos(frame_T *topfrp, int *row, int *col) 4925 { 4926 win_T *wp; 4927 frame_T *frp; 4928 int startcol; 4929 int startrow; 4930 4931 wp = topfrp->fr_win; 4932 if (wp != NULL) 4933 { 4934 if (wp->w_winrow != *row || wp->w_wincol != *col) 4935 { 4936 /* position changed, redraw */ 4937 wp->w_winrow = *row; 4938 wp->w_wincol = *col; 4939 redraw_win_later(wp, NOT_VALID); 4940 wp->w_redr_status = TRUE; 4941 } 4942 *row += wp->w_height + wp->w_status_height; 4943 *col += wp->w_width + wp->w_vsep_width; 4944 } 4945 else 4946 { 4947 startrow = *row; 4948 startcol = *col; 4949 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 4950 { 4951 if (topfrp->fr_layout == FR_ROW) 4952 *row = startrow; /* all frames are at the same row */ 4953 else 4954 *col = startcol; /* all frames are at the same col */ 4955 frame_comp_pos(frp, row, col); 4956 } 4957 } 4958 } 4959 4960 #endif /* FEAT_WINDOWS */ 4961 4962 /* 4963 * Set current window height and take care of repositioning other windows to 4964 * fit around it. 4965 */ 4966 void 4967 win_setheight(int height) 4968 { 4969 win_setheight_win(height, curwin); 4970 } 4971 4972 /* 4973 * Set the window height of window "win" and take care of repositioning other 4974 * windows to fit around it. 4975 */ 4976 void 4977 win_setheight_win(int height, win_T *win) 4978 { 4979 int row; 4980 4981 if (win == curwin) 4982 { 4983 /* Always keep current window at least one line high, even when 4984 * 'winminheight' is zero. */ 4985 #ifdef FEAT_WINDOWS 4986 if (height < p_wmh) 4987 height = p_wmh; 4988 #endif 4989 if (height == 0) 4990 height = 1; 4991 } 4992 4993 #ifdef FEAT_WINDOWS 4994 frame_setheight(win->w_frame, height + win->w_status_height); 4995 4996 /* recompute the window positions */ 4997 row = win_comp_pos(); 4998 #else 4999 if (height > topframe->fr_height) 5000 height = topframe->fr_height; 5001 win->w_height = height; 5002 row = height; 5003 #endif 5004 5005 /* 5006 * If there is extra space created between the last window and the command 5007 * line, clear it. 5008 */ 5009 if (full_screen && msg_scrolled == 0 && row < cmdline_row) 5010 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5011 cmdline_row = row; 5012 msg_row = row; 5013 msg_col = 0; 5014 5015 redraw_all_later(NOT_VALID); 5016 } 5017 5018 #if defined(FEAT_WINDOWS) || defined(PROTO) 5019 5020 /* 5021 * Set the height of a frame to "height" and take care that all frames and 5022 * windows inside it are resized. Also resize frames on the left and right if 5023 * the are in the same FR_ROW frame. 5024 * 5025 * Strategy: 5026 * If the frame is part of a FR_COL frame, try fitting the frame in that 5027 * frame. If that doesn't work (the FR_COL frame is too small), recursively 5028 * go to containing frames to resize them and make room. 5029 * If the frame is part of a FR_ROW frame, all frames must be resized as well. 5030 * Check for the minimal height of the FR_ROW frame. 5031 * At the top level we can also use change the command line height. 5032 */ 5033 static void 5034 frame_setheight(frame_T *curfrp, int height) 5035 { 5036 int room; /* total number of lines available */ 5037 int take; /* number of lines taken from other windows */ 5038 int room_cmdline; /* lines available from cmdline */ 5039 int run; 5040 frame_T *frp; 5041 int h; 5042 int room_reserved; 5043 5044 /* If the height already is the desired value, nothing to do. */ 5045 if (curfrp->fr_height == height) 5046 return; 5047 5048 if (curfrp->fr_parent == NULL) 5049 { 5050 /* topframe: can only change the command line */ 5051 if (height > ROWS_AVAIL) 5052 height = ROWS_AVAIL; 5053 if (height > 0) 5054 frame_new_height(curfrp, height, FALSE, FALSE); 5055 } 5056 else if (curfrp->fr_parent->fr_layout == FR_ROW) 5057 { 5058 /* Row of frames: Also need to resize frames left and right of this 5059 * one. First check for the minimal height of these. */ 5060 h = frame_minheight(curfrp->fr_parent, NULL); 5061 if (height < h) 5062 height = h; 5063 frame_setheight(curfrp->fr_parent, height); 5064 } 5065 else 5066 { 5067 /* 5068 * Column of frames: try to change only frames in this column. 5069 */ 5070 /* 5071 * Do this twice: 5072 * 1: compute room available, if it's not enough try resizing the 5073 * containing frame. 5074 * 2: compute the room available and adjust the height to it. 5075 * Try not to reduce the height of a window with 'winfixheight' set. 5076 */ 5077 for (run = 1; run <= 2; ++run) 5078 { 5079 room = 0; 5080 room_reserved = 0; 5081 for (frp = curfrp->fr_parent->fr_child; frp != NULL; 5082 frp = frp->fr_next) 5083 { 5084 if (frp != curfrp 5085 && frp->fr_win != NULL 5086 && frp->fr_win->w_p_wfh) 5087 room_reserved += frp->fr_height; 5088 room += frp->fr_height; 5089 if (frp != curfrp) 5090 room -= frame_minheight(frp, NULL); 5091 } 5092 if (curfrp->fr_width != Columns) 5093 room_cmdline = 0; 5094 else 5095 { 5096 room_cmdline = Rows - p_ch - (lastwin->w_winrow 5097 + lastwin->w_height + lastwin->w_status_height); 5098 if (room_cmdline < 0) 5099 room_cmdline = 0; 5100 } 5101 5102 if (height <= room + room_cmdline) 5103 break; 5104 if (run == 2 || curfrp->fr_width == Columns) 5105 { 5106 if (height > room + room_cmdline) 5107 height = room + room_cmdline; 5108 break; 5109 } 5110 frame_setheight(curfrp->fr_parent, height 5111 + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1); 5112 } 5113 5114 /* 5115 * Compute the number of lines we will take from others frames (can be 5116 * negative!). 5117 */ 5118 take = height - curfrp->fr_height; 5119 5120 /* If there is not enough room, also reduce the height of a window 5121 * with 'winfixheight' set. */ 5122 if (height > room + room_cmdline - room_reserved) 5123 room_reserved = room + room_cmdline - height; 5124 /* If there is only a 'winfixheight' window and making the 5125 * window smaller, need to make the other window taller. */ 5126 if (take < 0 && room - curfrp->fr_height < room_reserved) 5127 room_reserved = 0; 5128 5129 if (take > 0 && room_cmdline > 0) 5130 { 5131 /* use lines from cmdline first */ 5132 if (take < room_cmdline) 5133 room_cmdline = take; 5134 take -= room_cmdline; 5135 topframe->fr_height += room_cmdline; 5136 } 5137 5138 /* 5139 * set the current frame to the new height 5140 */ 5141 frame_new_height(curfrp, height, FALSE, FALSE); 5142 5143 /* 5144 * First take lines from the frames after the current frame. If 5145 * that is not enough, takes lines from frames above the current 5146 * frame. 5147 */ 5148 for (run = 0; run < 2; ++run) 5149 { 5150 if (run == 0) 5151 frp = curfrp->fr_next; /* 1st run: start with next window */ 5152 else 5153 frp = curfrp->fr_prev; /* 2nd run: start with prev window */ 5154 while (frp != NULL && take != 0) 5155 { 5156 h = frame_minheight(frp, NULL); 5157 if (room_reserved > 0 5158 && frp->fr_win != NULL 5159 && frp->fr_win->w_p_wfh) 5160 { 5161 if (room_reserved >= frp->fr_height) 5162 room_reserved -= frp->fr_height; 5163 else 5164 { 5165 if (frp->fr_height - room_reserved > take) 5166 room_reserved = frp->fr_height - take; 5167 take -= frp->fr_height - room_reserved; 5168 frame_new_height(frp, room_reserved, FALSE, FALSE); 5169 room_reserved = 0; 5170 } 5171 } 5172 else 5173 { 5174 if (frp->fr_height - take < h) 5175 { 5176 take -= frp->fr_height - h; 5177 frame_new_height(frp, h, FALSE, FALSE); 5178 } 5179 else 5180 { 5181 frame_new_height(frp, frp->fr_height - take, 5182 FALSE, FALSE); 5183 take = 0; 5184 } 5185 } 5186 if (run == 0) 5187 frp = frp->fr_next; 5188 else 5189 frp = frp->fr_prev; 5190 } 5191 } 5192 } 5193 } 5194 5195 /* 5196 * Set current window width and take care of repositioning other windows to 5197 * fit around it. 5198 */ 5199 void 5200 win_setwidth(int width) 5201 { 5202 win_setwidth_win(width, curwin); 5203 } 5204 5205 void 5206 win_setwidth_win(int width, win_T *wp) 5207 { 5208 /* Always keep current window at least one column wide, even when 5209 * 'winminwidth' is zero. */ 5210 if (wp == curwin) 5211 { 5212 if (width < p_wmw) 5213 width = p_wmw; 5214 if (width == 0) 5215 width = 1; 5216 } 5217 5218 frame_setwidth(wp->w_frame, width + wp->w_vsep_width); 5219 5220 /* recompute the window positions */ 5221 (void)win_comp_pos(); 5222 5223 redraw_all_later(NOT_VALID); 5224 } 5225 5226 /* 5227 * Set the width of a frame to "width" and take care that all frames and 5228 * windows inside it are resized. Also resize frames above and below if the 5229 * are in the same FR_ROW frame. 5230 * 5231 * Strategy is similar to frame_setheight(). 5232 */ 5233 static void 5234 frame_setwidth(frame_T *curfrp, int width) 5235 { 5236 int room; /* total number of lines available */ 5237 int take; /* number of lines taken from other windows */ 5238 int run; 5239 frame_T *frp; 5240 int w; 5241 int room_reserved; 5242 5243 /* If the width already is the desired value, nothing to do. */ 5244 if (curfrp->fr_width == width) 5245 return; 5246 5247 if (curfrp->fr_parent == NULL) 5248 /* topframe: can't change width */ 5249 return; 5250 5251 if (curfrp->fr_parent->fr_layout == FR_COL) 5252 { 5253 /* Column of frames: Also need to resize frames above and below of 5254 * this one. First check for the minimal width of these. */ 5255 w = frame_minwidth(curfrp->fr_parent, NULL); 5256 if (width < w) 5257 width = w; 5258 frame_setwidth(curfrp->fr_parent, width); 5259 } 5260 else 5261 { 5262 /* 5263 * Row of frames: try to change only frames in this row. 5264 * 5265 * Do this twice: 5266 * 1: compute room available, if it's not enough try resizing the 5267 * containing frame. 5268 * 2: compute the room available and adjust the width to it. 5269 */ 5270 for (run = 1; run <= 2; ++run) 5271 { 5272 room = 0; 5273 room_reserved = 0; 5274 for (frp = curfrp->fr_parent->fr_child; frp != NULL; 5275 frp = frp->fr_next) 5276 { 5277 if (frp != curfrp 5278 && frp->fr_win != NULL 5279 && frp->fr_win->w_p_wfw) 5280 room_reserved += frp->fr_width; 5281 room += frp->fr_width; 5282 if (frp != curfrp) 5283 room -= frame_minwidth(frp, NULL); 5284 } 5285 5286 if (width <= room) 5287 break; 5288 if (run == 2 || curfrp->fr_height >= ROWS_AVAIL) 5289 { 5290 if (width > room) 5291 width = room; 5292 break; 5293 } 5294 frame_setwidth(curfrp->fr_parent, width 5295 + frame_minwidth(curfrp->fr_parent, NOWIN) - (int)p_wmw - 1); 5296 } 5297 5298 /* 5299 * Compute the number of lines we will take from others frames (can be 5300 * negative!). 5301 */ 5302 take = width - curfrp->fr_width; 5303 5304 /* If there is not enough room, also reduce the width of a window 5305 * with 'winfixwidth' set. */ 5306 if (width > room - room_reserved) 5307 room_reserved = room - width; 5308 /* If there is only a 'winfixwidth' window and making the 5309 * window smaller, need to make the other window narrower. */ 5310 if (take < 0 && room - curfrp->fr_width < room_reserved) 5311 room_reserved = 0; 5312 5313 /* 5314 * set the current frame to the new width 5315 */ 5316 frame_new_width(curfrp, width, FALSE, FALSE); 5317 5318 /* 5319 * First take lines from the frames right of the current frame. If 5320 * that is not enough, takes lines from frames left of the current 5321 * frame. 5322 */ 5323 for (run = 0; run < 2; ++run) 5324 { 5325 if (run == 0) 5326 frp = curfrp->fr_next; /* 1st run: start with next window */ 5327 else 5328 frp = curfrp->fr_prev; /* 2nd run: start with prev window */ 5329 while (frp != NULL && take != 0) 5330 { 5331 w = frame_minwidth(frp, NULL); 5332 if (room_reserved > 0 5333 && frp->fr_win != NULL 5334 && frp->fr_win->w_p_wfw) 5335 { 5336 if (room_reserved >= frp->fr_width) 5337 room_reserved -= frp->fr_width; 5338 else 5339 { 5340 if (frp->fr_width - room_reserved > take) 5341 room_reserved = frp->fr_width - take; 5342 take -= frp->fr_width - room_reserved; 5343 frame_new_width(frp, room_reserved, FALSE, FALSE); 5344 room_reserved = 0; 5345 } 5346 } 5347 else 5348 { 5349 if (frp->fr_width - take < w) 5350 { 5351 take -= frp->fr_width - w; 5352 frame_new_width(frp, w, FALSE, FALSE); 5353 } 5354 else 5355 { 5356 frame_new_width(frp, frp->fr_width - take, 5357 FALSE, FALSE); 5358 take = 0; 5359 } 5360 } 5361 if (run == 0) 5362 frp = frp->fr_next; 5363 else 5364 frp = frp->fr_prev; 5365 } 5366 } 5367 } 5368 } 5369 5370 /* 5371 * Check 'winminheight' for a valid value. 5372 */ 5373 void 5374 win_setminheight(void) 5375 { 5376 int room; 5377 int first = TRUE; 5378 win_T *wp; 5379 5380 /* loop until there is a 'winminheight' that is possible */ 5381 while (p_wmh > 0) 5382 { 5383 /* TODO: handle vertical splits */ 5384 room = -p_wh; 5385 FOR_ALL_WINDOWS(wp) 5386 room += wp->w_height - p_wmh; 5387 if (room >= 0) 5388 break; 5389 --p_wmh; 5390 if (first) 5391 { 5392 EMSG(_(e_noroom)); 5393 first = FALSE; 5394 } 5395 } 5396 } 5397 5398 #if defined(FEAT_MOUSE) || defined(PROTO) 5399 5400 /* 5401 * Status line of dragwin is dragged "offset" lines down (negative is up). 5402 */ 5403 void 5404 win_drag_status_line(win_T *dragwin, int offset) 5405 { 5406 frame_T *curfr; 5407 frame_T *fr; 5408 int room; 5409 int row; 5410 int up; /* if TRUE, drag status line up, otherwise down */ 5411 int n; 5412 5413 fr = dragwin->w_frame; 5414 curfr = fr; 5415 if (fr != topframe) /* more than one window */ 5416 { 5417 fr = fr->fr_parent; 5418 /* When the parent frame is not a column of frames, its parent should 5419 * be. */ 5420 if (fr->fr_layout != FR_COL) 5421 { 5422 curfr = fr; 5423 if (fr != topframe) /* only a row of windows, may drag statusline */ 5424 fr = fr->fr_parent; 5425 } 5426 } 5427 5428 /* If this is the last frame in a column, may want to resize the parent 5429 * frame instead (go two up to skip a row of frames). */ 5430 while (curfr != topframe && curfr->fr_next == NULL) 5431 { 5432 if (fr != topframe) 5433 fr = fr->fr_parent; 5434 curfr = fr; 5435 if (fr != topframe) 5436 fr = fr->fr_parent; 5437 } 5438 5439 if (offset < 0) /* drag up */ 5440 { 5441 up = TRUE; 5442 offset = -offset; 5443 /* sum up the room of the current frame and above it */ 5444 if (fr == curfr) 5445 { 5446 /* only one window */ 5447 room = fr->fr_height - frame_minheight(fr, NULL); 5448 } 5449 else 5450 { 5451 room = 0; 5452 for (fr = fr->fr_child; ; fr = fr->fr_next) 5453 { 5454 room += fr->fr_height - frame_minheight(fr, NULL); 5455 if (fr == curfr) 5456 break; 5457 } 5458 } 5459 fr = curfr->fr_next; /* put fr at frame that grows */ 5460 } 5461 else /* drag down */ 5462 { 5463 up = FALSE; 5464 /* 5465 * Only dragging the last status line can reduce p_ch. 5466 */ 5467 room = Rows - cmdline_row; 5468 if (curfr->fr_next == NULL) 5469 room -= 1; 5470 else 5471 room -= p_ch; 5472 if (room < 0) 5473 room = 0; 5474 /* sum up the room of frames below of the current one */ 5475 for (fr = curfr->fr_next; fr != NULL; fr = fr->fr_next) 5476 room += fr->fr_height - frame_minheight(fr, NULL); 5477 fr = curfr; /* put fr at window that grows */ 5478 } 5479 5480 if (room < offset) /* Not enough room */ 5481 offset = room; /* Move as far as we can */ 5482 if (offset <= 0) 5483 return; 5484 5485 /* 5486 * Grow frame fr by "offset" lines. 5487 * Doesn't happen when dragging the last status line up. 5488 */ 5489 if (fr != NULL) 5490 frame_new_height(fr, fr->fr_height + offset, up, FALSE); 5491 5492 if (up) 5493 fr = curfr; /* current frame gets smaller */ 5494 else 5495 fr = curfr->fr_next; /* next frame gets smaller */ 5496 5497 /* 5498 * Now make the other frames smaller. 5499 */ 5500 while (fr != NULL && offset > 0) 5501 { 5502 n = frame_minheight(fr, NULL); 5503 if (fr->fr_height - offset <= n) 5504 { 5505 offset -= fr->fr_height - n; 5506 frame_new_height(fr, n, !up, FALSE); 5507 } 5508 else 5509 { 5510 frame_new_height(fr, fr->fr_height - offset, !up, FALSE); 5511 break; 5512 } 5513 if (up) 5514 fr = fr->fr_prev; 5515 else 5516 fr = fr->fr_next; 5517 } 5518 row = win_comp_pos(); 5519 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5520 cmdline_row = row; 5521 p_ch = Rows - cmdline_row; 5522 if (p_ch < 1) 5523 p_ch = 1; 5524 curtab->tp_ch_used = p_ch; 5525 redraw_all_later(SOME_VALID); 5526 showmode(); 5527 } 5528 5529 /* 5530 * Separator line of dragwin is dragged "offset" lines right (negative is left). 5531 */ 5532 void 5533 win_drag_vsep_line(win_T *dragwin, int offset) 5534 { 5535 frame_T *curfr; 5536 frame_T *fr; 5537 int room; 5538 int left; /* if TRUE, drag separator line left, otherwise right */ 5539 int n; 5540 5541 fr = dragwin->w_frame; 5542 if (fr == topframe) /* only one window (cannot happen?) */ 5543 return; 5544 curfr = fr; 5545 fr = fr->fr_parent; 5546 /* When the parent frame is not a row of frames, its parent should be. */ 5547 if (fr->fr_layout != FR_ROW) 5548 { 5549 if (fr == topframe) /* only a column of windows (cannot happen?) */ 5550 return; 5551 curfr = fr; 5552 fr = fr->fr_parent; 5553 } 5554 5555 /* If this is the last frame in a row, may want to resize a parent 5556 * frame instead. */ 5557 while (curfr->fr_next == NULL) 5558 { 5559 if (fr == topframe) 5560 break; 5561 curfr = fr; 5562 fr = fr->fr_parent; 5563 if (fr != topframe) 5564 { 5565 curfr = fr; 5566 fr = fr->fr_parent; 5567 } 5568 } 5569 5570 if (offset < 0) /* drag left */ 5571 { 5572 left = TRUE; 5573 offset = -offset; 5574 /* sum up the room of the current frame and left of it */ 5575 room = 0; 5576 for (fr = fr->fr_child; ; fr = fr->fr_next) 5577 { 5578 room += fr->fr_width - frame_minwidth(fr, NULL); 5579 if (fr == curfr) 5580 break; 5581 } 5582 fr = curfr->fr_next; /* put fr at frame that grows */ 5583 } 5584 else /* drag right */ 5585 { 5586 left = FALSE; 5587 /* sum up the room of frames right of the current one */ 5588 room = 0; 5589 for (fr = curfr->fr_next; fr != NULL; fr = fr->fr_next) 5590 room += fr->fr_width - frame_minwidth(fr, NULL); 5591 fr = curfr; /* put fr at window that grows */ 5592 } 5593 5594 if (room < offset) /* Not enough room */ 5595 offset = room; /* Move as far as we can */ 5596 if (offset <= 0) /* No room at all, quit. */ 5597 return; 5598 if (fr == NULL) 5599 return; /* Safety check, should not happen. */ 5600 5601 /* grow frame fr by offset lines */ 5602 frame_new_width(fr, fr->fr_width + offset, left, FALSE); 5603 5604 /* shrink other frames: current and at the left or at the right */ 5605 if (left) 5606 fr = curfr; /* current frame gets smaller */ 5607 else 5608 fr = curfr->fr_next; /* next frame gets smaller */ 5609 5610 while (fr != NULL && offset > 0) 5611 { 5612 n = frame_minwidth(fr, NULL); 5613 if (fr->fr_width - offset <= n) 5614 { 5615 offset -= fr->fr_width - n; 5616 frame_new_width(fr, n, !left, FALSE); 5617 } 5618 else 5619 { 5620 frame_new_width(fr, fr->fr_width - offset, !left, FALSE); 5621 break; 5622 } 5623 if (left) 5624 fr = fr->fr_prev; 5625 else 5626 fr = fr->fr_next; 5627 } 5628 (void)win_comp_pos(); 5629 redraw_all_later(NOT_VALID); 5630 } 5631 #endif /* FEAT_MOUSE */ 5632 5633 #endif /* FEAT_WINDOWS */ 5634 5635 #define FRACTION_MULT 16384L 5636 5637 /* 5638 * Set wp->w_fraction for the current w_wrow and w_height. 5639 */ 5640 void 5641 set_fraction(win_T *wp) 5642 { 5643 wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT 5644 + wp->w_height / 2) / (long)wp->w_height; 5645 } 5646 5647 /* 5648 * Set the height of a window. 5649 * This takes care of the things inside the window, not what happens to the 5650 * window position, the frame or to other windows. 5651 */ 5652 void 5653 win_new_height(win_T *wp, int height) 5654 { 5655 linenr_T lnum; 5656 int sline, line_size; 5657 int prev_height = wp->w_height; 5658 5659 /* Don't want a negative height. Happens when splitting a tiny window. 5660 * Will equalize heights soon to fix it. */ 5661 if (height < 0) 5662 height = 0; 5663 if (wp->w_height == height) 5664 return; /* nothing to do */ 5665 5666 if (wp->w_height > 0) 5667 { 5668 if (wp == curwin) 5669 /* w_wrow needs to be valid. When setting 'laststatus' this may 5670 * call win_new_height() recursively. */ 5671 validate_cursor(); 5672 if (wp->w_height != prev_height) 5673 return; /* Recursive call already changed the size, bail out here 5674 to avoid the following to mess things up. */ 5675 if (wp->w_wrow != wp->w_prev_fraction_row) 5676 set_fraction(wp); 5677 } 5678 5679 wp->w_height = height; 5680 wp->w_skipcol = 0; 5681 5682 /* Don't change w_topline when height is zero. Don't set w_topline when 5683 * 'scrollbind' is set and this isn't the current window. */ 5684 if (height > 0 5685 #ifdef FEAT_SCROLLBIND 5686 && (!wp->w_p_scb || wp == curwin) 5687 #endif 5688 ) 5689 { 5690 /* 5691 * Find a value for w_topline that shows the cursor at the same 5692 * relative position in the window as before (more or less). 5693 */ 5694 lnum = wp->w_cursor.lnum; 5695 if (lnum < 1) /* can happen when starting up */ 5696 lnum = 1; 5697 wp->w_wrow = ((long)wp->w_fraction * (long)height - 1L 5698 + FRACTION_MULT / 2) / FRACTION_MULT; 5699 line_size = plines_win_col(wp, lnum, (long)(wp->w_cursor.col)) - 1; 5700 sline = wp->w_wrow - line_size; 5701 5702 if (sline >= 0) 5703 { 5704 /* Make sure the whole cursor line is visible, if possible. */ 5705 int rows = plines_win(wp, lnum, FALSE); 5706 5707 if (sline > wp->w_height - rows) 5708 { 5709 sline = wp->w_height - rows; 5710 wp->w_wrow -= rows - line_size; 5711 } 5712 } 5713 5714 if (sline < 0) 5715 { 5716 /* 5717 * Cursor line would go off top of screen if w_wrow was this high. 5718 * Make cursor line the first line in the window. If not enough 5719 * room use w_skipcol; 5720 */ 5721 wp->w_wrow = line_size; 5722 if (wp->w_wrow >= wp->w_height 5723 && (W_WIDTH(wp) - win_col_off(wp)) > 0) 5724 { 5725 wp->w_skipcol += W_WIDTH(wp) - win_col_off(wp); 5726 --wp->w_wrow; 5727 while (wp->w_wrow >= wp->w_height) 5728 { 5729 wp->w_skipcol += W_WIDTH(wp) - win_col_off(wp) 5730 + win_col_off2(wp); 5731 --wp->w_wrow; 5732 } 5733 } 5734 set_topline(wp, lnum); 5735 } 5736 else if (sline > 0) 5737 { 5738 while (sline > 0 && lnum > 1) 5739 { 5740 #ifdef FEAT_FOLDING 5741 hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); 5742 if (lnum == 1) 5743 { 5744 /* first line in buffer is folded */ 5745 line_size = 1; 5746 --sline; 5747 break; 5748 } 5749 #endif 5750 --lnum; 5751 #ifdef FEAT_DIFF 5752 if (lnum == wp->w_topline) 5753 line_size = plines_win_nofill(wp, lnum, TRUE) 5754 + wp->w_topfill; 5755 else 5756 #endif 5757 line_size = plines_win(wp, lnum, TRUE); 5758 sline -= line_size; 5759 } 5760 5761 if (sline < 0) 5762 { 5763 /* 5764 * Line we want at top would go off top of screen. Use next 5765 * line instead. 5766 */ 5767 #ifdef FEAT_FOLDING 5768 hasFoldingWin(wp, lnum, NULL, &lnum, TRUE, NULL); 5769 #endif 5770 lnum++; 5771 wp->w_wrow -= line_size + sline; 5772 } 5773 else if (sline > 0) 5774 { 5775 /* First line of file reached, use that as topline. */ 5776 lnum = 1; 5777 wp->w_wrow -= sline; 5778 } 5779 5780 set_topline(wp, lnum); 5781 } 5782 } 5783 5784 if (wp == curwin) 5785 { 5786 if (p_so) 5787 update_topline(); 5788 curs_columns(FALSE); /* validate w_wrow */ 5789 } 5790 if (prev_height > 0) 5791 wp->w_prev_fraction_row = wp->w_wrow; 5792 5793 win_comp_scroll(wp); 5794 redraw_win_later(wp, SOME_VALID); 5795 #ifdef FEAT_WINDOWS 5796 wp->w_redr_status = TRUE; 5797 #endif 5798 invalidate_botline_win(wp); 5799 } 5800 5801 #ifdef FEAT_WINDOWS 5802 /* 5803 * Set the width of a window. 5804 */ 5805 void 5806 win_new_width(win_T *wp, int width) 5807 { 5808 wp->w_width = width; 5809 wp->w_lines_valid = 0; 5810 changed_line_abv_curs_win(wp); 5811 invalidate_botline_win(wp); 5812 if (wp == curwin) 5813 { 5814 update_topline(); 5815 curs_columns(TRUE); /* validate w_wrow */ 5816 } 5817 redraw_win_later(wp, NOT_VALID); 5818 wp->w_redr_status = TRUE; 5819 } 5820 #endif 5821 5822 void 5823 win_comp_scroll(win_T *wp) 5824 { 5825 wp->w_p_scr = ((unsigned)wp->w_height >> 1); 5826 if (wp->w_p_scr == 0) 5827 wp->w_p_scr = 1; 5828 } 5829 5830 /* 5831 * command_height: called whenever p_ch has been changed 5832 */ 5833 void 5834 command_height(void) 5835 { 5836 #ifdef FEAT_WINDOWS 5837 int h; 5838 frame_T *frp; 5839 int old_p_ch = curtab->tp_ch_used; 5840 5841 /* Use the value of p_ch that we remembered. This is needed for when the 5842 * GUI starts up, we can't be sure in what order things happen. And when 5843 * p_ch was changed in another tab page. */ 5844 curtab->tp_ch_used = p_ch; 5845 5846 /* Find bottom frame with width of screen. */ 5847 frp = lastwin->w_frame; 5848 while (frp->fr_width != Columns && frp->fr_parent != NULL) 5849 frp = frp->fr_parent; 5850 5851 /* Avoid changing the height of a window with 'winfixheight' set. */ 5852 while (frp->fr_prev != NULL && frp->fr_layout == FR_LEAF 5853 && frp->fr_win->w_p_wfh) 5854 frp = frp->fr_prev; 5855 5856 if (starting != NO_SCREEN) 5857 { 5858 cmdline_row = Rows - p_ch; 5859 5860 if (p_ch > old_p_ch) /* p_ch got bigger */ 5861 { 5862 while (p_ch > old_p_ch) 5863 { 5864 if (frp == NULL) 5865 { 5866 EMSG(_(e_noroom)); 5867 p_ch = old_p_ch; 5868 curtab->tp_ch_used = p_ch; 5869 cmdline_row = Rows - p_ch; 5870 break; 5871 } 5872 h = frp->fr_height - frame_minheight(frp, NULL); 5873 if (h > p_ch - old_p_ch) 5874 h = p_ch - old_p_ch; 5875 old_p_ch += h; 5876 frame_add_height(frp, -h); 5877 frp = frp->fr_prev; 5878 } 5879 5880 /* Recompute window positions. */ 5881 (void)win_comp_pos(); 5882 5883 /* clear the lines added to cmdline */ 5884 if (full_screen) 5885 screen_fill((int)(cmdline_row), (int)Rows, 0, 5886 (int)Columns, ' ', ' ', 0); 5887 msg_row = cmdline_row; 5888 redraw_cmdline = TRUE; 5889 return; 5890 } 5891 5892 if (msg_row < cmdline_row) 5893 msg_row = cmdline_row; 5894 redraw_cmdline = TRUE; 5895 } 5896 frame_add_height(frp, (int)(old_p_ch - p_ch)); 5897 5898 /* Recompute window positions. */ 5899 if (frp != lastwin->w_frame) 5900 (void)win_comp_pos(); 5901 #else 5902 cmdline_row = Rows - p_ch; 5903 win_setheight(cmdline_row); 5904 #endif 5905 } 5906 5907 #if defined(FEAT_WINDOWS) || defined(PROTO) 5908 /* 5909 * Resize frame "frp" to be "n" lines higher (negative for less high). 5910 * Also resize the frames it is contained in. 5911 */ 5912 static void 5913 frame_add_height(frame_T *frp, int n) 5914 { 5915 frame_new_height(frp, frp->fr_height + n, FALSE, FALSE); 5916 for (;;) 5917 { 5918 frp = frp->fr_parent; 5919 if (frp == NULL) 5920 break; 5921 frp->fr_height += n; 5922 } 5923 } 5924 5925 /* 5926 * Add or remove a status line for the bottom window(s), according to the 5927 * value of 'laststatus'. 5928 */ 5929 void 5930 last_status( 5931 int morewin) /* pretend there are two or more windows */ 5932 { 5933 /* Don't make a difference between horizontal or vertical split. */ 5934 last_status_rec(topframe, (p_ls == 2 5935 || (p_ls == 1 && (morewin || lastwin != firstwin)))); 5936 } 5937 5938 static void 5939 last_status_rec(frame_T *fr, int statusline) 5940 { 5941 frame_T *fp; 5942 win_T *wp; 5943 5944 if (fr->fr_layout == FR_LEAF) 5945 { 5946 wp = fr->fr_win; 5947 if (wp->w_status_height != 0 && !statusline) 5948 { 5949 /* remove status line */ 5950 win_new_height(wp, wp->w_height + 1); 5951 wp->w_status_height = 0; 5952 comp_col(); 5953 } 5954 else if (wp->w_status_height == 0 && statusline) 5955 { 5956 /* Find a frame to take a line from. */ 5957 fp = fr; 5958 while (fp->fr_height <= frame_minheight(fp, NULL)) 5959 { 5960 if (fp == topframe) 5961 { 5962 EMSG(_(e_noroom)); 5963 return; 5964 } 5965 /* In a column of frames: go to frame above. If already at 5966 * the top or in a row of frames: go to parent. */ 5967 if (fp->fr_parent->fr_layout == FR_COL && fp->fr_prev != NULL) 5968 fp = fp->fr_prev; 5969 else 5970 fp = fp->fr_parent; 5971 } 5972 wp->w_status_height = 1; 5973 if (fp != fr) 5974 { 5975 frame_new_height(fp, fp->fr_height - 1, FALSE, FALSE); 5976 frame_fix_height(wp); 5977 (void)win_comp_pos(); 5978 } 5979 else 5980 win_new_height(wp, wp->w_height - 1); 5981 comp_col(); 5982 redraw_all_later(SOME_VALID); 5983 } 5984 } 5985 else if (fr->fr_layout == FR_ROW) 5986 { 5987 /* vertically split windows, set status line for each one */ 5988 for (fp = fr->fr_child; fp != NULL; fp = fp->fr_next) 5989 last_status_rec(fp, statusline); 5990 } 5991 else 5992 { 5993 /* horizontally split window, set status line for last one */ 5994 for (fp = fr->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 5995 ; 5996 last_status_rec(fp, statusline); 5997 } 5998 } 5999 6000 /* 6001 * Return the number of lines used by the tab page line. 6002 */ 6003 int 6004 tabline_height(void) 6005 { 6006 #ifdef FEAT_GUI_TABLINE 6007 /* When the GUI has the tabline then this always returns zero. */ 6008 if (gui_use_tabline()) 6009 return 0; 6010 #endif 6011 switch (p_stal) 6012 { 6013 case 0: return 0; 6014 case 1: return (first_tabpage->tp_next == NULL) ? 0 : 1; 6015 } 6016 return 1; 6017 } 6018 6019 #endif /* FEAT_WINDOWS */ 6020 6021 #if defined(FEAT_SEARCHPATH) || defined(PROTO) 6022 /* 6023 * Get the file name at the cursor. 6024 * If Visual mode is active, use the selected text if it's in one line. 6025 * Returns the name in allocated memory, NULL for failure. 6026 */ 6027 char_u * 6028 grab_file_name(long count, linenr_T *file_lnum) 6029 { 6030 int options = FNAME_MESS|FNAME_EXP|FNAME_REL|FNAME_UNESC; 6031 6032 if (VIsual_active) 6033 { 6034 int len; 6035 char_u *ptr; 6036 6037 if (get_visual_text(NULL, &ptr, &len) == FAIL) 6038 return NULL; 6039 return find_file_name_in_path(ptr, len, options, 6040 count, curbuf->b_ffname); 6041 } 6042 return file_name_at_cursor(options | FNAME_HYP, count, file_lnum); 6043 6044 } 6045 6046 /* 6047 * Return the file name under or after the cursor. 6048 * 6049 * The 'path' option is searched if the file name is not absolute. 6050 * The string returned has been alloc'ed and should be freed by the caller. 6051 * NULL is returned if the file name or file is not found. 6052 * 6053 * options: 6054 * FNAME_MESS give error messages 6055 * FNAME_EXP expand to path 6056 * FNAME_HYP check for hypertext link 6057 * FNAME_INCL apply "includeexpr" 6058 */ 6059 char_u * 6060 file_name_at_cursor(int options, long count, linenr_T *file_lnum) 6061 { 6062 return file_name_in_line(ml_get_curline(), 6063 curwin->w_cursor.col, options, count, curbuf->b_ffname, 6064 file_lnum); 6065 } 6066 6067 /* 6068 * Return the name of the file under or after ptr[col]. 6069 * Otherwise like file_name_at_cursor(). 6070 */ 6071 char_u * 6072 file_name_in_line( 6073 char_u *line, 6074 int col, 6075 int options, 6076 long count, 6077 char_u *rel_fname, /* file we are searching relative to */ 6078 linenr_T *file_lnum) /* line number after the file name */ 6079 { 6080 char_u *ptr; 6081 int len; 6082 6083 /* 6084 * search forward for what could be the start of a file name 6085 */ 6086 ptr = line + col; 6087 while (*ptr != NUL && !vim_isfilec(*ptr)) 6088 mb_ptr_adv(ptr); 6089 if (*ptr == NUL) /* nothing found */ 6090 { 6091 if (options & FNAME_MESS) 6092 EMSG(_("E446: No file name under cursor")); 6093 return NULL; 6094 } 6095 6096 /* 6097 * Search backward for first char of the file name. 6098 * Go one char back to ":" before "//" even when ':' is not in 'isfname'. 6099 */ 6100 while (ptr > line) 6101 { 6102 #ifdef FEAT_MBYTE 6103 if (has_mbyte && (len = (*mb_head_off)(line, ptr - 1)) > 0) 6104 ptr -= len + 1; 6105 else 6106 #endif 6107 if (vim_isfilec(ptr[-1]) 6108 || ((options & FNAME_HYP) && path_is_url(ptr - 1))) 6109 --ptr; 6110 else 6111 break; 6112 } 6113 6114 /* 6115 * Search forward for the last char of the file name. 6116 * Also allow "://" when ':' is not in 'isfname'. 6117 */ 6118 len = 0; 6119 while (vim_isfilec(ptr[len]) || (ptr[len] == '\\' && ptr[len + 1] == ' ') 6120 || ((options & FNAME_HYP) && path_is_url(ptr + len))) 6121 { 6122 if (ptr[len] == '\\') 6123 /* Skip over the "\" in "\ ". */ 6124 ++len; 6125 #ifdef FEAT_MBYTE 6126 if (has_mbyte) 6127 len += (*mb_ptr2len)(ptr + len); 6128 else 6129 #endif 6130 ++len; 6131 } 6132 6133 /* 6134 * If there is trailing punctuation, remove it. 6135 * But don't remove "..", could be a directory name. 6136 */ 6137 if (len > 2 && vim_strchr((char_u *)".,:;!", ptr[len - 1]) != NULL 6138 && ptr[len - 2] != '.') 6139 --len; 6140 6141 if (file_lnum != NULL) 6142 { 6143 char_u *p; 6144 6145 /* Get the number after the file name and a separator character */ 6146 p = ptr + len; 6147 p = skipwhite(p); 6148 if (*p != NUL) 6149 { 6150 if (!isdigit(*p)) 6151 ++p; /* skip the separator */ 6152 p = skipwhite(p); 6153 if (isdigit(*p)) 6154 *file_lnum = (int)getdigits(&p); 6155 } 6156 } 6157 6158 return find_file_name_in_path(ptr, len, options, count, rel_fname); 6159 } 6160 6161 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6162 static char_u *eval_includeexpr(char_u *ptr, int len); 6163 6164 static char_u * 6165 eval_includeexpr(char_u *ptr, int len) 6166 { 6167 char_u *res; 6168 6169 set_vim_var_string(VV_FNAME, ptr, len); 6170 res = eval_to_string_safe(curbuf->b_p_inex, NULL, 6171 was_set_insecurely((char_u *)"includeexpr", OPT_LOCAL)); 6172 set_vim_var_string(VV_FNAME, NULL, 0); 6173 return res; 6174 } 6175 #endif 6176 6177 /* 6178 * Return the name of the file ptr[len] in 'path'. 6179 * Otherwise like file_name_at_cursor(). 6180 */ 6181 char_u * 6182 find_file_name_in_path( 6183 char_u *ptr, 6184 int len, 6185 int options, 6186 long count, 6187 char_u *rel_fname) /* file we are searching relative to */ 6188 { 6189 char_u *file_name; 6190 int c; 6191 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6192 char_u *tofree = NULL; 6193 6194 if ((options & FNAME_INCL) && *curbuf->b_p_inex != NUL) 6195 { 6196 tofree = eval_includeexpr(ptr, len); 6197 if (tofree != NULL) 6198 { 6199 ptr = tofree; 6200 len = (int)STRLEN(ptr); 6201 } 6202 } 6203 # endif 6204 6205 if (options & FNAME_EXP) 6206 { 6207 file_name = find_file_in_path(ptr, len, options & ~FNAME_MESS, 6208 TRUE, rel_fname); 6209 6210 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6211 /* 6212 * If the file could not be found in a normal way, try applying 6213 * 'includeexpr' (unless done already). 6214 */ 6215 if (file_name == NULL 6216 && !(options & FNAME_INCL) && *curbuf->b_p_inex != NUL) 6217 { 6218 tofree = eval_includeexpr(ptr, len); 6219 if (tofree != NULL) 6220 { 6221 ptr = tofree; 6222 len = (int)STRLEN(ptr); 6223 file_name = find_file_in_path(ptr, len, options & ~FNAME_MESS, 6224 TRUE, rel_fname); 6225 } 6226 } 6227 # endif 6228 if (file_name == NULL && (options & FNAME_MESS)) 6229 { 6230 c = ptr[len]; 6231 ptr[len] = NUL; 6232 EMSG2(_("E447: Can't find file \"%s\" in path"), ptr); 6233 ptr[len] = c; 6234 } 6235 6236 /* Repeat finding the file "count" times. This matters when it 6237 * appears several times in the path. */ 6238 while (file_name != NULL && --count > 0) 6239 { 6240 vim_free(file_name); 6241 file_name = find_file_in_path(ptr, len, options, FALSE, rel_fname); 6242 } 6243 } 6244 else 6245 file_name = vim_strnsave(ptr, len); 6246 6247 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6248 vim_free(tofree); 6249 # endif 6250 6251 return file_name; 6252 } 6253 #endif /* FEAT_SEARCHPATH */ 6254 6255 /* 6256 * Check if the "://" of a URL is at the pointer, return URL_SLASH. 6257 * Also check for ":\\", which MS Internet Explorer accepts, return 6258 * URL_BACKSLASH. 6259 */ 6260 static int 6261 path_is_url(char_u *p) 6262 { 6263 if (STRNCMP(p, "://", (size_t)3) == 0) 6264 return URL_SLASH; 6265 else if (STRNCMP(p, ":\\\\", (size_t)3) == 0) 6266 return URL_BACKSLASH; 6267 return 0; 6268 } 6269 6270 /* 6271 * Check if "fname" starts with "name://". Return URL_SLASH if it does. 6272 * Return URL_BACKSLASH for "name:\\". 6273 * Return zero otherwise. 6274 */ 6275 int 6276 path_with_url(char_u *fname) 6277 { 6278 char_u *p; 6279 6280 for (p = fname; isalpha(*p); ++p) 6281 ; 6282 return path_is_url(p); 6283 } 6284 6285 /* 6286 * Return TRUE if "name" is a full (absolute) path name or URL. 6287 */ 6288 int 6289 vim_isAbsName(char_u *name) 6290 { 6291 return (path_with_url(name) != 0 || mch_isFullName(name)); 6292 } 6293 6294 /* 6295 * Get absolute file name into buffer "buf[len]". 6296 * 6297 * return FAIL for failure, OK otherwise 6298 */ 6299 int 6300 vim_FullName( 6301 char_u *fname, 6302 char_u *buf, 6303 int len, 6304 int force) /* force expansion even when already absolute */ 6305 { 6306 int retval = OK; 6307 int url; 6308 6309 *buf = NUL; 6310 if (fname == NULL) 6311 return FAIL; 6312 6313 url = path_with_url(fname); 6314 if (!url) 6315 retval = mch_FullName(fname, buf, len, force); 6316 if (url || retval == FAIL) 6317 { 6318 /* something failed; use the file name (truncate when too long) */ 6319 vim_strncpy(buf, fname, len - 1); 6320 } 6321 #if defined(MACOS_CLASSIC) || defined(MSWIN) 6322 slash_adjust(buf); 6323 #endif 6324 return retval; 6325 } 6326 6327 /* 6328 * Return the minimal number of rows that is needed on the screen to display 6329 * the current number of windows. 6330 */ 6331 int 6332 min_rows(void) 6333 { 6334 int total; 6335 #ifdef FEAT_WINDOWS 6336 tabpage_T *tp; 6337 int n; 6338 #endif 6339 6340 if (firstwin == NULL) /* not initialized yet */ 6341 return MIN_LINES; 6342 6343 #ifdef FEAT_WINDOWS 6344 total = 0; 6345 FOR_ALL_TABPAGES(tp) 6346 { 6347 n = frame_minheight(tp->tp_topframe, NULL); 6348 if (total < n) 6349 total = n; 6350 } 6351 total += tabline_height(); 6352 #else 6353 total = 1; /* at least one window should have a line! */ 6354 #endif 6355 total += 1; /* count the room for the command line */ 6356 return total; 6357 } 6358 6359 /* 6360 * Return TRUE if there is only one window (in the current tab page), not 6361 * counting a help or preview window, unless it is the current window. 6362 * Does not count "aucmd_win". 6363 */ 6364 int 6365 only_one_window(void) 6366 { 6367 #ifdef FEAT_WINDOWS 6368 int count = 0; 6369 win_T *wp; 6370 6371 /* If there is another tab page there always is another window. */ 6372 if (first_tabpage->tp_next != NULL) 6373 return FALSE; 6374 6375 FOR_ALL_WINDOWS(wp) 6376 if (wp->w_buffer != NULL 6377 && (!((wp->w_buffer->b_help && !curbuf->b_help) 6378 # ifdef FEAT_QUICKFIX 6379 || wp->w_p_pvw 6380 # endif 6381 ) || wp == curwin) 6382 # ifdef FEAT_AUTOCMD 6383 && wp != aucmd_win 6384 # endif 6385 ) 6386 ++count; 6387 return (count <= 1); 6388 #else 6389 return TRUE; 6390 #endif 6391 } 6392 6393 #if defined(FEAT_WINDOWS) || defined(FEAT_AUTOCMD) || defined(PROTO) 6394 /* 6395 * Correct the cursor line number in other windows. Used after changing the 6396 * current buffer, and before applying autocommands. 6397 * When "do_curwin" is TRUE, also check current window. 6398 */ 6399 void 6400 check_lnums(int do_curwin) 6401 { 6402 win_T *wp; 6403 6404 #ifdef FEAT_WINDOWS 6405 tabpage_T *tp; 6406 6407 FOR_ALL_TAB_WINDOWS(tp, wp) 6408 if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) 6409 #else 6410 wp = curwin; 6411 if (do_curwin) 6412 #endif 6413 { 6414 if (wp->w_cursor.lnum > curbuf->b_ml.ml_line_count) 6415 wp->w_cursor.lnum = curbuf->b_ml.ml_line_count; 6416 if (wp->w_topline > curbuf->b_ml.ml_line_count) 6417 wp->w_topline = curbuf->b_ml.ml_line_count; 6418 } 6419 } 6420 #endif 6421 6422 #if defined(FEAT_WINDOWS) || defined(PROTO) 6423 6424 /* 6425 * A snapshot of the window sizes, to restore them after closing the help 6426 * window. 6427 * Only these fields are used: 6428 * fr_layout 6429 * fr_width 6430 * fr_height 6431 * fr_next 6432 * fr_child 6433 * fr_win (only valid for the old curwin, NULL otherwise) 6434 */ 6435 6436 /* 6437 * Create a snapshot of the current frame sizes. 6438 */ 6439 void 6440 make_snapshot(int idx) 6441 { 6442 clear_snapshot(curtab, idx); 6443 make_snapshot_rec(topframe, &curtab->tp_snapshot[idx]); 6444 } 6445 6446 static void 6447 make_snapshot_rec(frame_T *fr, frame_T **frp) 6448 { 6449 *frp = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); 6450 if (*frp == NULL) 6451 return; 6452 (*frp)->fr_layout = fr->fr_layout; 6453 (*frp)->fr_width = fr->fr_width; 6454 (*frp)->fr_height = fr->fr_height; 6455 if (fr->fr_next != NULL) 6456 make_snapshot_rec(fr->fr_next, &((*frp)->fr_next)); 6457 if (fr->fr_child != NULL) 6458 make_snapshot_rec(fr->fr_child, &((*frp)->fr_child)); 6459 if (fr->fr_layout == FR_LEAF && fr->fr_win == curwin) 6460 (*frp)->fr_win = curwin; 6461 } 6462 6463 /* 6464 * Remove any existing snapshot. 6465 */ 6466 static void 6467 clear_snapshot(tabpage_T *tp, int idx) 6468 { 6469 clear_snapshot_rec(tp->tp_snapshot[idx]); 6470 tp->tp_snapshot[idx] = NULL; 6471 } 6472 6473 static void 6474 clear_snapshot_rec(frame_T *fr) 6475 { 6476 if (fr != NULL) 6477 { 6478 clear_snapshot_rec(fr->fr_next); 6479 clear_snapshot_rec(fr->fr_child); 6480 vim_free(fr); 6481 } 6482 } 6483 6484 /* 6485 * Restore a previously created snapshot, if there is any. 6486 * This is only done if the screen size didn't change and the window layout is 6487 * still the same. 6488 */ 6489 void 6490 restore_snapshot( 6491 int idx, 6492 int close_curwin) /* closing current window */ 6493 { 6494 win_T *wp; 6495 6496 if (curtab->tp_snapshot[idx] != NULL 6497 && curtab->tp_snapshot[idx]->fr_width == topframe->fr_width 6498 && curtab->tp_snapshot[idx]->fr_height == topframe->fr_height 6499 && check_snapshot_rec(curtab->tp_snapshot[idx], topframe) == OK) 6500 { 6501 wp = restore_snapshot_rec(curtab->tp_snapshot[idx], topframe); 6502 win_comp_pos(); 6503 if (wp != NULL && close_curwin) 6504 win_goto(wp); 6505 redraw_all_later(CLEAR); 6506 } 6507 clear_snapshot(curtab, idx); 6508 } 6509 6510 /* 6511 * Check if frames "sn" and "fr" have the same layout, same following frames 6512 * and same children. 6513 */ 6514 static int 6515 check_snapshot_rec(frame_T *sn, frame_T *fr) 6516 { 6517 if (sn->fr_layout != fr->fr_layout 6518 || (sn->fr_next == NULL) != (fr->fr_next == NULL) 6519 || (sn->fr_child == NULL) != (fr->fr_child == NULL) 6520 || (sn->fr_next != NULL 6521 && check_snapshot_rec(sn->fr_next, fr->fr_next) == FAIL) 6522 || (sn->fr_child != NULL 6523 && check_snapshot_rec(sn->fr_child, fr->fr_child) == FAIL)) 6524 return FAIL; 6525 return OK; 6526 } 6527 6528 /* 6529 * Copy the size of snapshot frame "sn" to frame "fr". Do the same for all 6530 * following frames and children. 6531 * Returns a pointer to the old current window, or NULL. 6532 */ 6533 static win_T * 6534 restore_snapshot_rec(frame_T *sn, frame_T *fr) 6535 { 6536 win_T *wp = NULL; 6537 win_T *wp2; 6538 6539 fr->fr_height = sn->fr_height; 6540 fr->fr_width = sn->fr_width; 6541 if (fr->fr_layout == FR_LEAF) 6542 { 6543 frame_new_height(fr, fr->fr_height, FALSE, FALSE); 6544 frame_new_width(fr, fr->fr_width, FALSE, FALSE); 6545 wp = sn->fr_win; 6546 } 6547 if (sn->fr_next != NULL) 6548 { 6549 wp2 = restore_snapshot_rec(sn->fr_next, fr->fr_next); 6550 if (wp2 != NULL) 6551 wp = wp2; 6552 } 6553 if (sn->fr_child != NULL) 6554 { 6555 wp2 = restore_snapshot_rec(sn->fr_child, fr->fr_child); 6556 if (wp2 != NULL) 6557 wp = wp2; 6558 } 6559 return wp; 6560 } 6561 6562 #endif 6563 6564 #if defined(FEAT_EVAL) || defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) \ 6565 || defined(PROTO) 6566 /* 6567 * Set "win" to be the curwin and "tp" to be the current tab page. 6568 * restore_win() MUST be called to undo, also when FAIL is returned. 6569 * No autocommands will be executed until restore_win() is called. 6570 * When "no_display" is TRUE the display won't be affected, no redraw is 6571 * triggered, another tabpage access is limited. 6572 * Returns FAIL if switching to "win" failed. 6573 */ 6574 int 6575 switch_win( 6576 win_T **save_curwin UNUSED, 6577 tabpage_T **save_curtab UNUSED, 6578 win_T *win UNUSED, 6579 tabpage_T *tp UNUSED, 6580 int no_display UNUSED) 6581 { 6582 # ifdef FEAT_AUTOCMD 6583 block_autocmds(); 6584 # endif 6585 # ifdef FEAT_WINDOWS 6586 *save_curwin = curwin; 6587 if (tp != NULL) 6588 { 6589 *save_curtab = curtab; 6590 if (no_display) 6591 { 6592 curtab->tp_firstwin = firstwin; 6593 curtab->tp_lastwin = lastwin; 6594 curtab = tp; 6595 firstwin = curtab->tp_firstwin; 6596 lastwin = curtab->tp_lastwin; 6597 } 6598 else 6599 goto_tabpage_tp(tp, FALSE, FALSE); 6600 } 6601 if (!win_valid(win)) 6602 return FAIL; 6603 curwin = win; 6604 curbuf = curwin->w_buffer; 6605 # endif 6606 return OK; 6607 } 6608 6609 /* 6610 * Restore current tabpage and window saved by switch_win(), if still valid. 6611 * When "no_display" is TRUE the display won't be affected, no redraw is 6612 * triggered. 6613 */ 6614 void 6615 restore_win( 6616 win_T *save_curwin UNUSED, 6617 tabpage_T *save_curtab UNUSED, 6618 int no_display UNUSED) 6619 { 6620 # ifdef FEAT_WINDOWS 6621 if (save_curtab != NULL && valid_tabpage(save_curtab)) 6622 { 6623 if (no_display) 6624 { 6625 curtab->tp_firstwin = firstwin; 6626 curtab->tp_lastwin = lastwin; 6627 curtab = save_curtab; 6628 firstwin = curtab->tp_firstwin; 6629 lastwin = curtab->tp_lastwin; 6630 } 6631 else 6632 goto_tabpage_tp(save_curtab, FALSE, FALSE); 6633 } 6634 if (win_valid(save_curwin)) 6635 { 6636 curwin = save_curwin; 6637 curbuf = curwin->w_buffer; 6638 } 6639 # endif 6640 # ifdef FEAT_AUTOCMD 6641 unblock_autocmds(); 6642 # endif 6643 } 6644 6645 /* 6646 * Make "buf" the current buffer. restore_buffer() MUST be called to undo. 6647 * No autocommands will be executed. Use aucmd_prepbuf() if there are any. 6648 */ 6649 void 6650 switch_buffer(bufref_T *save_curbuf, buf_T *buf) 6651 { 6652 # ifdef FEAT_AUTOCMD 6653 block_autocmds(); 6654 # endif 6655 set_bufref(save_curbuf, curbuf); 6656 --curbuf->b_nwindows; 6657 curbuf = buf; 6658 curwin->w_buffer = buf; 6659 ++curbuf->b_nwindows; 6660 } 6661 6662 /* 6663 * Restore the current buffer after using switch_buffer(). 6664 */ 6665 void 6666 restore_buffer(bufref_T *save_curbuf) 6667 { 6668 # ifdef FEAT_AUTOCMD 6669 unblock_autocmds(); 6670 # endif 6671 /* Check for valid buffer, just in case. */ 6672 if (bufref_valid(save_curbuf)) 6673 { 6674 --curbuf->b_nwindows; 6675 curwin->w_buffer = save_curbuf->br_buf; 6676 curbuf = save_curbuf->br_buf; 6677 ++curbuf->b_nwindows; 6678 } 6679 } 6680 #endif 6681 6682 #if (defined(FEAT_GUI) && defined(FEAT_WINDOWS)) || defined(PROTO) 6683 /* 6684 * Return TRUE if there is any vertically split window. 6685 */ 6686 int 6687 win_hasvertsplit(void) 6688 { 6689 frame_T *fr; 6690 6691 if (topframe->fr_layout == FR_ROW) 6692 return TRUE; 6693 6694 if (topframe->fr_layout == FR_COL) 6695 for (fr = topframe->fr_child; fr != NULL; fr = fr->fr_next) 6696 if (fr->fr_layout == FR_ROW) 6697 return TRUE; 6698 6699 return FALSE; 6700 } 6701 #endif 6702 6703 #if defined(FEAT_SEARCH_EXTRA) || defined(PROTO) 6704 /* 6705 * Add match to the match list of window 'wp'. The pattern 'pat' will be 6706 * highlighted with the group 'grp' with priority 'prio'. 6707 * Optionally, a desired ID 'id' can be specified (greater than or equal to 1). 6708 * If no particular ID is desired, -1 must be specified for 'id'. 6709 * Return ID of added match, -1 on failure. 6710 */ 6711 int 6712 match_add( 6713 win_T *wp, 6714 char_u *grp, 6715 char_u *pat, 6716 int prio, 6717 int id, 6718 list_T *pos_list, 6719 char_u *conceal_char UNUSED) /* pointer to conceal replacement char */ 6720 { 6721 matchitem_T *cur; 6722 matchitem_T *prev; 6723 matchitem_T *m; 6724 int hlg_id; 6725 regprog_T *regprog = NULL; 6726 int rtype = SOME_VALID; 6727 6728 if (*grp == NUL || (pat != NULL && *pat == NUL)) 6729 return -1; 6730 if (id < -1 || id == 0) 6731 { 6732 EMSGN("E799: Invalid ID: %ld (must be greater than or equal to 1)", id); 6733 return -1; 6734 } 6735 if (id != -1) 6736 { 6737 cur = wp->w_match_head; 6738 while (cur != NULL) 6739 { 6740 if (cur->id == id) 6741 { 6742 EMSGN("E801: ID already taken: %ld", id); 6743 return -1; 6744 } 6745 cur = cur->next; 6746 } 6747 } 6748 if ((hlg_id = syn_namen2id(grp, (int)STRLEN(grp))) == 0) 6749 { 6750 EMSG2(_(e_nogroup), grp); 6751 return -1; 6752 } 6753 if (pat != NULL && (regprog = vim_regcomp(pat, RE_MAGIC)) == NULL) 6754 { 6755 EMSG2(_(e_invarg2), pat); 6756 return -1; 6757 } 6758 6759 /* Find available match ID. */ 6760 while (id == -1) 6761 { 6762 cur = wp->w_match_head; 6763 while (cur != NULL && cur->id != wp->w_next_match_id) 6764 cur = cur->next; 6765 if (cur == NULL) 6766 id = wp->w_next_match_id; 6767 wp->w_next_match_id++; 6768 } 6769 6770 /* Build new match. */ 6771 m = (matchitem_T *)alloc_clear(sizeof(matchitem_T)); 6772 m->id = id; 6773 m->priority = prio; 6774 m->pattern = pat == NULL ? NULL : vim_strsave(pat); 6775 m->hlg_id = hlg_id; 6776 m->match.regprog = regprog; 6777 m->match.rmm_ic = FALSE; 6778 m->match.rmm_maxcol = 0; 6779 # if defined(FEAT_CONCEAL) && defined(FEAT_MBYTE) 6780 m->conceal_char = 0; 6781 if (conceal_char != NULL) 6782 m->conceal_char = (*mb_ptr2char)(conceal_char); 6783 # endif 6784 6785 /* Set up position matches */ 6786 if (pos_list != NULL) 6787 { 6788 linenr_T toplnum = 0; 6789 linenr_T botlnum = 0; 6790 listitem_T *li; 6791 int i; 6792 6793 for (i = 0, li = pos_list->lv_first; li != NULL && i < MAXPOSMATCH; 6794 i++, li = li->li_next) 6795 { 6796 linenr_T lnum = 0; 6797 colnr_T col = 0; 6798 int len = 1; 6799 list_T *subl; 6800 listitem_T *subli; 6801 int error = FALSE; 6802 6803 if (li->li_tv.v_type == VAR_LIST) 6804 { 6805 subl = li->li_tv.vval.v_list; 6806 if (subl == NULL) 6807 goto fail; 6808 subli = subl->lv_first; 6809 if (subli == NULL) 6810 goto fail; 6811 lnum = get_tv_number_chk(&subli->li_tv, &error); 6812 if (error == TRUE) 6813 goto fail; 6814 if (lnum == 0) 6815 { 6816 --i; 6817 continue; 6818 } 6819 m->pos.pos[i].lnum = lnum; 6820 subli = subli->li_next; 6821 if (subli != NULL) 6822 { 6823 col = get_tv_number_chk(&subli->li_tv, &error); 6824 if (error == TRUE) 6825 goto fail; 6826 subli = subli->li_next; 6827 if (subli != NULL) 6828 { 6829 len = get_tv_number_chk(&subli->li_tv, &error); 6830 if (error == TRUE) 6831 goto fail; 6832 } 6833 } 6834 m->pos.pos[i].col = col; 6835 m->pos.pos[i].len = len; 6836 } 6837 else if (li->li_tv.v_type == VAR_NUMBER) 6838 { 6839 if (li->li_tv.vval.v_number == 0) 6840 { 6841 --i; 6842 continue; 6843 } 6844 m->pos.pos[i].lnum = li->li_tv.vval.v_number; 6845 m->pos.pos[i].col = 0; 6846 m->pos.pos[i].len = 0; 6847 } 6848 else 6849 { 6850 EMSG(_("List or number required")); 6851 goto fail; 6852 } 6853 if (toplnum == 0 || lnum < toplnum) 6854 toplnum = lnum; 6855 if (botlnum == 0 || lnum >= botlnum) 6856 botlnum = lnum + 1; 6857 } 6858 6859 /* Calculate top and bottom lines for redrawing area */ 6860 if (toplnum != 0) 6861 { 6862 if (wp->w_buffer->b_mod_set) 6863 { 6864 if (wp->w_buffer->b_mod_top > toplnum) 6865 wp->w_buffer->b_mod_top = toplnum; 6866 if (wp->w_buffer->b_mod_bot < botlnum) 6867 wp->w_buffer->b_mod_bot = botlnum; 6868 } 6869 else 6870 { 6871 wp->w_buffer->b_mod_set = TRUE; 6872 wp->w_buffer->b_mod_top = toplnum; 6873 wp->w_buffer->b_mod_bot = botlnum; 6874 wp->w_buffer->b_mod_xlines = 0; 6875 } 6876 m->pos.toplnum = toplnum; 6877 m->pos.botlnum = botlnum; 6878 rtype = VALID; 6879 } 6880 } 6881 6882 /* Insert new match. The match list is in ascending order with regard to 6883 * the match priorities. */ 6884 cur = wp->w_match_head; 6885 prev = cur; 6886 while (cur != NULL && prio >= cur->priority) 6887 { 6888 prev = cur; 6889 cur = cur->next; 6890 } 6891 if (cur == prev) 6892 wp->w_match_head = m; 6893 else 6894 prev->next = m; 6895 m->next = cur; 6896 6897 redraw_later(rtype); 6898 return id; 6899 6900 fail: 6901 vim_free(m); 6902 return -1; 6903 } 6904 6905 /* 6906 * Delete match with ID 'id' in the match list of window 'wp'. 6907 * Print error messages if 'perr' is TRUE. 6908 */ 6909 int 6910 match_delete(win_T *wp, int id, int perr) 6911 { 6912 matchitem_T *cur = wp->w_match_head; 6913 matchitem_T *prev = cur; 6914 int rtype = SOME_VALID; 6915 6916 if (id < 1) 6917 { 6918 if (perr == TRUE) 6919 EMSGN("E802: Invalid ID: %ld (must be greater than or equal to 1)", 6920 id); 6921 return -1; 6922 } 6923 while (cur != NULL && cur->id != id) 6924 { 6925 prev = cur; 6926 cur = cur->next; 6927 } 6928 if (cur == NULL) 6929 { 6930 if (perr == TRUE) 6931 EMSGN("E803: ID not found: %ld", id); 6932 return -1; 6933 } 6934 if (cur == prev) 6935 wp->w_match_head = cur->next; 6936 else 6937 prev->next = cur->next; 6938 vim_regfree(cur->match.regprog); 6939 vim_free(cur->pattern); 6940 if (cur->pos.toplnum != 0) 6941 { 6942 if (wp->w_buffer->b_mod_set) 6943 { 6944 if (wp->w_buffer->b_mod_top > cur->pos.toplnum) 6945 wp->w_buffer->b_mod_top = cur->pos.toplnum; 6946 if (wp->w_buffer->b_mod_bot < cur->pos.botlnum) 6947 wp->w_buffer->b_mod_bot = cur->pos.botlnum; 6948 } 6949 else 6950 { 6951 wp->w_buffer->b_mod_set = TRUE; 6952 wp->w_buffer->b_mod_top = cur->pos.toplnum; 6953 wp->w_buffer->b_mod_bot = cur->pos.botlnum; 6954 wp->w_buffer->b_mod_xlines = 0; 6955 } 6956 rtype = VALID; 6957 } 6958 vim_free(cur); 6959 redraw_later(rtype); 6960 return 0; 6961 } 6962 6963 /* 6964 * Delete all matches in the match list of window 'wp'. 6965 */ 6966 void 6967 clear_matches(win_T *wp) 6968 { 6969 matchitem_T *m; 6970 6971 while (wp->w_match_head != NULL) 6972 { 6973 m = wp->w_match_head->next; 6974 vim_regfree(wp->w_match_head->match.regprog); 6975 vim_free(wp->w_match_head->pattern); 6976 vim_free(wp->w_match_head); 6977 wp->w_match_head = m; 6978 } 6979 redraw_later(SOME_VALID); 6980 } 6981 6982 /* 6983 * Get match from ID 'id' in window 'wp'. 6984 * Return NULL if match not found. 6985 */ 6986 matchitem_T * 6987 get_match(win_T *wp, int id) 6988 { 6989 matchitem_T *cur = wp->w_match_head; 6990 6991 while (cur != NULL && cur->id != id) 6992 cur = cur->next; 6993 return cur; 6994 } 6995 #endif 6996 6997 #if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO) 6998 int 6999 get_win_number(win_T *wp, win_T *first_win) 7000 { 7001 int i = 1; 7002 win_T *w; 7003 7004 for (w = first_win; w != NULL && w != wp; w = W_NEXT(w)) 7005 ++i; 7006 7007 if (w == NULL) 7008 return 0; 7009 else 7010 return i; 7011 } 7012 7013 int 7014 get_tab_number(tabpage_T *tp UNUSED) 7015 { 7016 int i = 1; 7017 # ifdef FEAT_WINDOWS 7018 tabpage_T *t; 7019 7020 for (t = first_tabpage; t != NULL && t != tp; t = t->tp_next) 7021 ++i; 7022 7023 if (t == NULL) 7024 return 0; 7025 else 7026 # endif 7027 return i; 7028 } 7029 #endif 7030 7031 #if defined(FEAT_WINDOWS) || defined(PROTO) 7032 /* 7033 * Return TRUE if "topfrp" and its children are at the right height. 7034 */ 7035 static int 7036 frame_check_height(frame_T *topfrp, int height) 7037 { 7038 frame_T *frp; 7039 7040 if (topfrp->fr_height != height) 7041 return FALSE; 7042 7043 if (topfrp->fr_layout == FR_ROW) 7044 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 7045 if (frp->fr_height != height) 7046 return FALSE; 7047 7048 return TRUE; 7049 } 7050 #endif 7051 7052 #if defined(FEAT_WINDOWS) || defined(PROTO) 7053 /* 7054 * Return TRUE if "topfrp" and its children are at the right width. 7055 */ 7056 static int 7057 frame_check_width(frame_T *topfrp, int width) 7058 { 7059 frame_T *frp; 7060 7061 if (topfrp->fr_width != width) 7062 return FALSE; 7063 7064 if (topfrp->fr_layout == FR_COL) 7065 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 7066 if (frp->fr_width != width) 7067 return FALSE; 7068 7069 return TRUE; 7070 } 7071 #endif 7072 7073 #if defined(FEAT_EVAL) || defined(PROTO) 7074 int 7075 win_getid(typval_T *argvars) 7076 { 7077 int winnr; 7078 win_T *wp; 7079 7080 if (argvars[0].v_type == VAR_UNKNOWN) 7081 return curwin->w_id; 7082 winnr = get_tv_number(&argvars[0]); 7083 if (winnr > 0) 7084 { 7085 if (argvars[1].v_type == VAR_UNKNOWN) 7086 wp = firstwin; 7087 else 7088 { 7089 tabpage_T *tp; 7090 int tabnr = get_tv_number(&argvars[1]); 7091 7092 FOR_ALL_TABPAGES(tp) 7093 if (--tabnr == 0) 7094 break; 7095 if (tp == NULL) 7096 return -1; 7097 wp = tp->tp_firstwin; 7098 } 7099 for ( ; wp != NULL; wp = wp->w_next) 7100 if (--winnr == 0) 7101 return wp->w_id; 7102 } 7103 return 0; 7104 } 7105 7106 int 7107 win_gotoid(typval_T *argvars) 7108 { 7109 win_T *wp; 7110 tabpage_T *tp; 7111 int id = get_tv_number(&argvars[0]); 7112 7113 FOR_ALL_TAB_WINDOWS(tp, wp) 7114 if (wp->w_id == id) 7115 { 7116 goto_tabpage_win(tp, wp); 7117 return 1; 7118 } 7119 return 0; 7120 } 7121 7122 void 7123 win_id2tabwin(typval_T *argvars, list_T *list) 7124 { 7125 win_T *wp; 7126 tabpage_T *tp; 7127 int winnr = 1; 7128 int tabnr = 1; 7129 int id = get_tv_number(&argvars[0]); 7130 7131 FOR_ALL_TABPAGES(tp) 7132 { 7133 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 7134 { 7135 if (wp->w_id == id) 7136 { 7137 list_append_number(list, tabnr); 7138 list_append_number(list, winnr); 7139 return; 7140 } 7141 ++winnr; 7142 } 7143 ++tabnr; 7144 winnr = 1; 7145 } 7146 list_append_number(list, 0); 7147 list_append_number(list, 0); 7148 } 7149 7150 int 7151 win_id2win(typval_T *argvars) 7152 { 7153 win_T *wp; 7154 int nr = 1; 7155 int id = get_tv_number(&argvars[0]); 7156 7157 FOR_ALL_WINDOWS(wp) 7158 { 7159 if (wp->w_id == id) 7160 return nr; 7161 ++nr; 7162 } 7163 return 0; 7164 } 7165 7166 void 7167 win_findbuf(typval_T *argvars, list_T *list) 7168 { 7169 win_T *wp; 7170 tabpage_T *tp; 7171 int bufnr = get_tv_number(&argvars[0]); 7172 7173 FOR_ALL_TAB_WINDOWS(tp, wp) 7174 if (wp->w_buffer->b_fnum == bufnr) 7175 list_append_number(list, wp->w_id); 7176 } 7177 7178 #endif 7179