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 in the current tab page. 1362 */ 1363 int 1364 win_valid(win_T *win) 1365 { 1366 win_T *wp; 1367 1368 if (win == NULL) 1369 return FALSE; 1370 FOR_ALL_WINDOWS(wp) 1371 if (wp == win) 1372 return TRUE; 1373 return FALSE; 1374 } 1375 1376 /* 1377 * Check if "win" is a pointer to an existing window in any tab page. 1378 */ 1379 int 1380 win_valid_any_tab(win_T *win) 1381 { 1382 win_T *wp; 1383 tabpage_T *tp; 1384 1385 if (win == NULL) 1386 return FALSE; 1387 FOR_ALL_TABPAGES(tp) 1388 { 1389 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 1390 { 1391 if (wp == win) 1392 return TRUE; 1393 } 1394 } 1395 return FALSE; 1396 } 1397 1398 /* 1399 * Return the number of windows. 1400 */ 1401 int 1402 win_count(void) 1403 { 1404 win_T *wp; 1405 int count = 0; 1406 1407 FOR_ALL_WINDOWS(wp) 1408 ++count; 1409 return count; 1410 } 1411 1412 /* 1413 * Make "count" windows on the screen. 1414 * Return actual number of windows on the screen. 1415 * Must be called when there is just one window, filling the whole screen 1416 * (excluding the command line). 1417 */ 1418 int 1419 make_windows( 1420 int count, 1421 int vertical UNUSED) /* split windows vertically if TRUE */ 1422 { 1423 int maxcount; 1424 int todo; 1425 1426 if (vertical) 1427 { 1428 /* Each windows needs at least 'winminwidth' lines and a separator 1429 * column. */ 1430 maxcount = (curwin->w_width + curwin->w_vsep_width 1431 - (p_wiw - p_wmw)) / (p_wmw + 1); 1432 } 1433 else 1434 { 1435 /* Each window needs at least 'winminheight' lines and a status line. */ 1436 maxcount = (curwin->w_height + curwin->w_status_height 1437 - (p_wh - p_wmh)) / (p_wmh + STATUS_HEIGHT); 1438 } 1439 1440 if (maxcount < 2) 1441 maxcount = 2; 1442 if (count > maxcount) 1443 count = maxcount; 1444 1445 /* 1446 * add status line now, otherwise first window will be too big 1447 */ 1448 if (count > 1) 1449 last_status(TRUE); 1450 1451 #ifdef FEAT_AUTOCMD 1452 /* 1453 * Don't execute autocommands while creating the windows. Must do that 1454 * when putting the buffers in the windows. 1455 */ 1456 block_autocmds(); 1457 #endif 1458 1459 /* todo is number of windows left to create */ 1460 for (todo = count - 1; todo > 0; --todo) 1461 if (vertical) 1462 { 1463 if (win_split(curwin->w_width - (curwin->w_width - todo) 1464 / (todo + 1) - 1, WSP_VERT | WSP_ABOVE) == FAIL) 1465 break; 1466 } 1467 else 1468 { 1469 if (win_split(curwin->w_height - (curwin->w_height - todo 1470 * STATUS_HEIGHT) / (todo + 1) 1471 - STATUS_HEIGHT, WSP_ABOVE) == FAIL) 1472 break; 1473 } 1474 1475 #ifdef FEAT_AUTOCMD 1476 unblock_autocmds(); 1477 #endif 1478 1479 /* return actual number of windows */ 1480 return (count - todo); 1481 } 1482 1483 /* 1484 * Exchange current and next window 1485 */ 1486 static void 1487 win_exchange(long Prenum) 1488 { 1489 frame_T *frp; 1490 frame_T *frp2; 1491 win_T *wp; 1492 win_T *wp2; 1493 int temp; 1494 1495 if (lastwin == firstwin) /* just one window */ 1496 { 1497 beep_flush(); 1498 return; 1499 } 1500 1501 #ifdef FEAT_GUI 1502 need_mouse_correct = TRUE; 1503 #endif 1504 1505 /* 1506 * find window to exchange with 1507 */ 1508 if (Prenum) 1509 { 1510 frp = curwin->w_frame->fr_parent->fr_child; 1511 while (frp != NULL && --Prenum > 0) 1512 frp = frp->fr_next; 1513 } 1514 else if (curwin->w_frame->fr_next != NULL) /* Swap with next */ 1515 frp = curwin->w_frame->fr_next; 1516 else /* Swap last window in row/col with previous */ 1517 frp = curwin->w_frame->fr_prev; 1518 1519 /* We can only exchange a window with another window, not with a frame 1520 * containing windows. */ 1521 if (frp == NULL || frp->fr_win == NULL || frp->fr_win == curwin) 1522 return; 1523 wp = frp->fr_win; 1524 1525 /* 1526 * 1. remove curwin from the list. Remember after which window it was in wp2 1527 * 2. insert curwin before wp in the list 1528 * if wp != wp2 1529 * 3. remove wp from the list 1530 * 4. insert wp after wp2 1531 * 5. exchange the status line height and vsep width. 1532 */ 1533 wp2 = curwin->w_prev; 1534 frp2 = curwin->w_frame->fr_prev; 1535 if (wp->w_prev != curwin) 1536 { 1537 win_remove(curwin, NULL); 1538 frame_remove(curwin->w_frame); 1539 win_append(wp->w_prev, curwin); 1540 frame_insert(frp, curwin->w_frame); 1541 } 1542 if (wp != wp2) 1543 { 1544 win_remove(wp, NULL); 1545 frame_remove(wp->w_frame); 1546 win_append(wp2, wp); 1547 if (frp2 == NULL) 1548 frame_insert(wp->w_frame->fr_parent->fr_child, wp->w_frame); 1549 else 1550 frame_append(frp2, wp->w_frame); 1551 } 1552 temp = curwin->w_status_height; 1553 curwin->w_status_height = wp->w_status_height; 1554 wp->w_status_height = temp; 1555 temp = curwin->w_vsep_width; 1556 curwin->w_vsep_width = wp->w_vsep_width; 1557 wp->w_vsep_width = temp; 1558 1559 /* If the windows are not in the same frame, exchange the sizes to avoid 1560 * messing up the window layout. Otherwise fix the frame sizes. */ 1561 if (curwin->w_frame->fr_parent != wp->w_frame->fr_parent) 1562 { 1563 temp = curwin->w_height; 1564 curwin->w_height = wp->w_height; 1565 wp->w_height = temp; 1566 temp = curwin->w_width; 1567 curwin->w_width = wp->w_width; 1568 wp->w_width = temp; 1569 } 1570 else 1571 { 1572 frame_fix_height(curwin); 1573 frame_fix_height(wp); 1574 frame_fix_width(curwin); 1575 frame_fix_width(wp); 1576 } 1577 1578 (void)win_comp_pos(); /* recompute window positions */ 1579 1580 win_enter(wp, TRUE); 1581 redraw_later(CLEAR); 1582 } 1583 1584 /* 1585 * rotate windows: if upwards TRUE the second window becomes the first one 1586 * if upwards FALSE the first window becomes the second one 1587 */ 1588 static void 1589 win_rotate(int upwards, int count) 1590 { 1591 win_T *wp1; 1592 win_T *wp2; 1593 frame_T *frp; 1594 int n; 1595 1596 if (firstwin == lastwin) /* nothing to do */ 1597 { 1598 beep_flush(); 1599 return; 1600 } 1601 1602 #ifdef FEAT_GUI 1603 need_mouse_correct = TRUE; 1604 #endif 1605 1606 /* Check if all frames in this row/col have one window. */ 1607 for (frp = curwin->w_frame->fr_parent->fr_child; frp != NULL; 1608 frp = frp->fr_next) 1609 if (frp->fr_win == NULL) 1610 { 1611 EMSG(_("E443: Cannot rotate when another window is split")); 1612 return; 1613 } 1614 1615 while (count--) 1616 { 1617 if (upwards) /* first window becomes last window */ 1618 { 1619 /* remove first window/frame from the list */ 1620 frp = curwin->w_frame->fr_parent->fr_child; 1621 wp1 = frp->fr_win; 1622 win_remove(wp1, NULL); 1623 frame_remove(frp); 1624 1625 /* find last frame and append removed window/frame after it */ 1626 for ( ; frp->fr_next != NULL; frp = frp->fr_next) 1627 ; 1628 win_append(frp->fr_win, wp1); 1629 frame_append(frp, wp1->w_frame); 1630 1631 wp2 = frp->fr_win; /* previously last window */ 1632 } 1633 else /* last window becomes first window */ 1634 { 1635 /* find last window/frame in the list and remove it */ 1636 for (frp = curwin->w_frame; frp->fr_next != NULL; 1637 frp = frp->fr_next) 1638 ; 1639 wp1 = frp->fr_win; 1640 wp2 = wp1->w_prev; /* will become last window */ 1641 win_remove(wp1, NULL); 1642 frame_remove(frp); 1643 1644 /* append the removed window/frame before the first in the list */ 1645 win_append(frp->fr_parent->fr_child->fr_win->w_prev, wp1); 1646 frame_insert(frp->fr_parent->fr_child, frp); 1647 } 1648 1649 /* exchange status height and vsep width of old and new last window */ 1650 n = wp2->w_status_height; 1651 wp2->w_status_height = wp1->w_status_height; 1652 wp1->w_status_height = n; 1653 frame_fix_height(wp1); 1654 frame_fix_height(wp2); 1655 n = wp2->w_vsep_width; 1656 wp2->w_vsep_width = wp1->w_vsep_width; 1657 wp1->w_vsep_width = n; 1658 frame_fix_width(wp1); 1659 frame_fix_width(wp2); 1660 1661 /* recompute w_winrow and w_wincol for all windows */ 1662 (void)win_comp_pos(); 1663 } 1664 1665 redraw_later(CLEAR); 1666 } 1667 1668 /* 1669 * Move the current window to the very top/bottom/left/right of the screen. 1670 */ 1671 static void 1672 win_totop(int size, int flags) 1673 { 1674 int dir; 1675 int height = curwin->w_height; 1676 1677 if (lastwin == firstwin) 1678 { 1679 beep_flush(); 1680 return; 1681 } 1682 1683 /* Remove the window and frame from the tree of frames. */ 1684 (void)winframe_remove(curwin, &dir, NULL); 1685 win_remove(curwin, NULL); 1686 last_status(FALSE); /* may need to remove last status line */ 1687 (void)win_comp_pos(); /* recompute window positions */ 1688 1689 /* Split a window on the desired side and put the window there. */ 1690 (void)win_split_ins(size, flags, curwin, dir); 1691 if (!(flags & WSP_VERT)) 1692 { 1693 win_setheight(height); 1694 if (p_ea) 1695 win_equal(curwin, TRUE, 'v'); 1696 } 1697 1698 #if defined(FEAT_GUI) 1699 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 1700 * scrollbars. Have to update them anyway. */ 1701 gui_may_update_scrollbars(); 1702 #endif 1703 } 1704 1705 /* 1706 * Move window "win1" to below/right of "win2" and make "win1" the current 1707 * window. Only works within the same frame! 1708 */ 1709 void 1710 win_move_after(win_T *win1, win_T *win2) 1711 { 1712 int height; 1713 1714 /* check if the arguments are reasonable */ 1715 if (win1 == win2) 1716 return; 1717 1718 /* check if there is something to do */ 1719 if (win2->w_next != win1) 1720 { 1721 /* may need move the status line/vertical separator of the last window 1722 * */ 1723 if (win1 == lastwin) 1724 { 1725 height = win1->w_prev->w_status_height; 1726 win1->w_prev->w_status_height = win1->w_status_height; 1727 win1->w_status_height = height; 1728 if (win1->w_prev->w_vsep_width == 1) 1729 { 1730 /* Remove the vertical separator from the last-but-one window, 1731 * add it to the last window. Adjust the frame widths. */ 1732 win1->w_prev->w_vsep_width = 0; 1733 win1->w_prev->w_frame->fr_width -= 1; 1734 win1->w_vsep_width = 1; 1735 win1->w_frame->fr_width += 1; 1736 } 1737 } 1738 else if (win2 == lastwin) 1739 { 1740 height = win1->w_status_height; 1741 win1->w_status_height = win2->w_status_height; 1742 win2->w_status_height = height; 1743 if (win1->w_vsep_width == 1) 1744 { 1745 /* Remove the vertical separator from win1, add it to the last 1746 * window, win2. Adjust the frame widths. */ 1747 win2->w_vsep_width = 1; 1748 win2->w_frame->fr_width += 1; 1749 win1->w_vsep_width = 0; 1750 win1->w_frame->fr_width -= 1; 1751 } 1752 } 1753 win_remove(win1, NULL); 1754 frame_remove(win1->w_frame); 1755 win_append(win2, win1); 1756 frame_append(win2->w_frame, win1->w_frame); 1757 1758 (void)win_comp_pos(); /* recompute w_winrow for all windows */ 1759 redraw_later(NOT_VALID); 1760 } 1761 win_enter(win1, FALSE); 1762 } 1763 1764 /* 1765 * Make all windows the same height. 1766 * 'next_curwin' will soon be the current window, make sure it has enough 1767 * rows. 1768 */ 1769 void 1770 win_equal( 1771 win_T *next_curwin, /* pointer to current window to be or NULL */ 1772 int current, /* do only frame with current window */ 1773 int dir) /* 'v' for vertically, 'h' for horizontally, 1774 'b' for both, 0 for using p_ead */ 1775 { 1776 if (dir == 0) 1777 dir = *p_ead; 1778 win_equal_rec(next_curwin == NULL ? curwin : next_curwin, current, 1779 topframe, dir, 0, tabline_height(), 1780 (int)Columns, topframe->fr_height); 1781 } 1782 1783 /* 1784 * Set a frame to a new position and height, spreading the available room 1785 * equally over contained frames. 1786 * The window "next_curwin" (if not NULL) should at least get the size from 1787 * 'winheight' and 'winwidth' if possible. 1788 */ 1789 static void 1790 win_equal_rec( 1791 win_T *next_curwin, /* pointer to current window to be or NULL */ 1792 int current, /* do only frame with current window */ 1793 frame_T *topfr, /* frame to set size off */ 1794 int dir, /* 'v', 'h' or 'b', see win_equal() */ 1795 int col, /* horizontal position for frame */ 1796 int row, /* vertical position for frame */ 1797 int width, /* new width of frame */ 1798 int height) /* new height of frame */ 1799 { 1800 int n, m; 1801 int extra_sep = 0; 1802 int wincount, totwincount = 0; 1803 frame_T *fr; 1804 int next_curwin_size = 0; 1805 int room = 0; 1806 int new_size; 1807 int has_next_curwin = 0; 1808 int hnc; 1809 1810 if (topfr->fr_layout == FR_LEAF) 1811 { 1812 /* Set the width/height of this frame. 1813 * Redraw when size or position changes */ 1814 if (topfr->fr_height != height || topfr->fr_win->w_winrow != row 1815 || topfr->fr_width != width || topfr->fr_win->w_wincol != col 1816 ) 1817 { 1818 topfr->fr_win->w_winrow = row; 1819 frame_new_height(topfr, height, FALSE, FALSE); 1820 topfr->fr_win->w_wincol = col; 1821 frame_new_width(topfr, width, FALSE, FALSE); 1822 redraw_all_later(CLEAR); 1823 } 1824 } 1825 else if (topfr->fr_layout == FR_ROW) 1826 { 1827 topfr->fr_width = width; 1828 topfr->fr_height = height; 1829 1830 if (dir != 'v') /* equalize frame widths */ 1831 { 1832 /* Compute the maximum number of windows horizontally in this 1833 * frame. */ 1834 n = frame_minwidth(topfr, NOWIN); 1835 /* add one for the rightmost window, it doesn't have a separator */ 1836 if (col + width == Columns) 1837 extra_sep = 1; 1838 else 1839 extra_sep = 0; 1840 totwincount = (n + extra_sep) / (p_wmw + 1); 1841 has_next_curwin = frame_has_win(topfr, next_curwin); 1842 1843 /* 1844 * Compute width for "next_curwin" window and room available for 1845 * other windows. 1846 * "m" is the minimal width when counting p_wiw for "next_curwin". 1847 */ 1848 m = frame_minwidth(topfr, next_curwin); 1849 room = width - m; 1850 if (room < 0) 1851 { 1852 next_curwin_size = p_wiw + room; 1853 room = 0; 1854 } 1855 else 1856 { 1857 next_curwin_size = -1; 1858 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 1859 { 1860 /* If 'winfixwidth' set keep the window width if 1861 * possible. 1862 * Watch out for this window being the next_curwin. */ 1863 if (frame_fixed_width(fr)) 1864 { 1865 n = frame_minwidth(fr, NOWIN); 1866 new_size = fr->fr_width; 1867 if (frame_has_win(fr, next_curwin)) 1868 { 1869 room += p_wiw - p_wmw; 1870 next_curwin_size = 0; 1871 if (new_size < p_wiw) 1872 new_size = p_wiw; 1873 } 1874 else 1875 /* These windows don't use up room. */ 1876 totwincount -= (n + (fr->fr_next == NULL 1877 ? extra_sep : 0)) / (p_wmw + 1); 1878 room -= new_size - n; 1879 if (room < 0) 1880 { 1881 new_size += room; 1882 room = 0; 1883 } 1884 fr->fr_newwidth = new_size; 1885 } 1886 } 1887 if (next_curwin_size == -1) 1888 { 1889 if (!has_next_curwin) 1890 next_curwin_size = 0; 1891 else if (totwincount > 1 1892 && (room + (totwincount - 2)) 1893 / (totwincount - 1) > p_wiw) 1894 { 1895 /* Can make all windows wider than 'winwidth', spread 1896 * the room equally. */ 1897 next_curwin_size = (room + p_wiw 1898 + (totwincount - 1) * p_wmw 1899 + (totwincount - 1)) / totwincount; 1900 room -= next_curwin_size - p_wiw; 1901 } 1902 else 1903 next_curwin_size = p_wiw; 1904 } 1905 } 1906 1907 if (has_next_curwin) 1908 --totwincount; /* don't count curwin */ 1909 } 1910 1911 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 1912 { 1913 n = m = 0; 1914 wincount = 1; 1915 if (fr->fr_next == NULL) 1916 /* last frame gets all that remains (avoid roundoff error) */ 1917 new_size = width; 1918 else if (dir == 'v') 1919 new_size = fr->fr_width; 1920 else if (frame_fixed_width(fr)) 1921 { 1922 new_size = fr->fr_newwidth; 1923 wincount = 0; /* doesn't count as a sizeable window */ 1924 } 1925 else 1926 { 1927 /* Compute the maximum number of windows horiz. in "fr". */ 1928 n = frame_minwidth(fr, NOWIN); 1929 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 1930 / (p_wmw + 1); 1931 m = frame_minwidth(fr, next_curwin); 1932 if (has_next_curwin) 1933 hnc = frame_has_win(fr, next_curwin); 1934 else 1935 hnc = FALSE; 1936 if (hnc) /* don't count next_curwin */ 1937 --wincount; 1938 if (totwincount == 0) 1939 new_size = room; 1940 else 1941 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 1942 / totwincount; 1943 if (hnc) /* add next_curwin size */ 1944 { 1945 next_curwin_size -= p_wiw - (m - n); 1946 new_size += next_curwin_size; 1947 room -= new_size - next_curwin_size; 1948 } 1949 else 1950 room -= new_size; 1951 new_size += n; 1952 } 1953 1954 /* Skip frame that is full width when splitting or closing a 1955 * window, unless equalizing all frames. */ 1956 if (!current || dir != 'v' || topfr->fr_parent != NULL 1957 || (new_size != fr->fr_width) 1958 || frame_has_win(fr, next_curwin)) 1959 win_equal_rec(next_curwin, current, fr, dir, col, row, 1960 new_size, height); 1961 col += new_size; 1962 width -= new_size; 1963 totwincount -= wincount; 1964 } 1965 } 1966 else /* topfr->fr_layout == FR_COL */ 1967 { 1968 topfr->fr_width = width; 1969 topfr->fr_height = height; 1970 1971 if (dir != 'h') /* equalize frame heights */ 1972 { 1973 /* Compute maximum number of windows vertically in this frame. */ 1974 n = frame_minheight(topfr, NOWIN); 1975 /* add one for the bottom window if it doesn't have a statusline */ 1976 if (row + height == cmdline_row && p_ls == 0) 1977 extra_sep = 1; 1978 else 1979 extra_sep = 0; 1980 totwincount = (n + extra_sep) / (p_wmh + 1); 1981 has_next_curwin = frame_has_win(topfr, next_curwin); 1982 1983 /* 1984 * Compute height for "next_curwin" window and room available for 1985 * other windows. 1986 * "m" is the minimal height when counting p_wh for "next_curwin". 1987 */ 1988 m = frame_minheight(topfr, next_curwin); 1989 room = height - m; 1990 if (room < 0) 1991 { 1992 /* The room is less then 'winheight', use all space for the 1993 * current window. */ 1994 next_curwin_size = p_wh + room; 1995 room = 0; 1996 } 1997 else 1998 { 1999 next_curwin_size = -1; 2000 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 2001 { 2002 /* If 'winfixheight' set keep the window height if 2003 * possible. 2004 * Watch out for this window being the next_curwin. */ 2005 if (frame_fixed_height(fr)) 2006 { 2007 n = frame_minheight(fr, NOWIN); 2008 new_size = fr->fr_height; 2009 if (frame_has_win(fr, next_curwin)) 2010 { 2011 room += p_wh - p_wmh; 2012 next_curwin_size = 0; 2013 if (new_size < p_wh) 2014 new_size = p_wh; 2015 } 2016 else 2017 /* These windows don't use up room. */ 2018 totwincount -= (n + (fr->fr_next == NULL 2019 ? extra_sep : 0)) / (p_wmh + 1); 2020 room -= new_size - n; 2021 if (room < 0) 2022 { 2023 new_size += room; 2024 room = 0; 2025 } 2026 fr->fr_newheight = new_size; 2027 } 2028 } 2029 if (next_curwin_size == -1) 2030 { 2031 if (!has_next_curwin) 2032 next_curwin_size = 0; 2033 else if (totwincount > 1 2034 && (room + (totwincount - 2)) 2035 / (totwincount - 1) > p_wh) 2036 { 2037 /* can make all windows higher than 'winheight', 2038 * spread the room equally. */ 2039 next_curwin_size = (room + p_wh 2040 + (totwincount - 1) * p_wmh 2041 + (totwincount - 1)) / totwincount; 2042 room -= next_curwin_size - p_wh; 2043 } 2044 else 2045 next_curwin_size = p_wh; 2046 } 2047 } 2048 2049 if (has_next_curwin) 2050 --totwincount; /* don't count curwin */ 2051 } 2052 2053 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 2054 { 2055 n = m = 0; 2056 wincount = 1; 2057 if (fr->fr_next == NULL) 2058 /* last frame gets all that remains (avoid roundoff error) */ 2059 new_size = height; 2060 else if (dir == 'h') 2061 new_size = fr->fr_height; 2062 else if (frame_fixed_height(fr)) 2063 { 2064 new_size = fr->fr_newheight; 2065 wincount = 0; /* doesn't count as a sizeable window */ 2066 } 2067 else 2068 { 2069 /* Compute the maximum number of windows vert. in "fr". */ 2070 n = frame_minheight(fr, NOWIN); 2071 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 2072 / (p_wmh + 1); 2073 m = frame_minheight(fr, next_curwin); 2074 if (has_next_curwin) 2075 hnc = frame_has_win(fr, next_curwin); 2076 else 2077 hnc = FALSE; 2078 if (hnc) /* don't count next_curwin */ 2079 --wincount; 2080 if (totwincount == 0) 2081 new_size = room; 2082 else 2083 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 2084 / totwincount; 2085 if (hnc) /* add next_curwin size */ 2086 { 2087 next_curwin_size -= p_wh - (m - n); 2088 new_size += next_curwin_size; 2089 room -= new_size - next_curwin_size; 2090 } 2091 else 2092 room -= new_size; 2093 new_size += n; 2094 } 2095 /* Skip frame that is full width when splitting or closing a 2096 * window, unless equalizing all frames. */ 2097 if (!current || dir != 'h' || topfr->fr_parent != NULL 2098 || (new_size != fr->fr_height) 2099 || frame_has_win(fr, next_curwin)) 2100 win_equal_rec(next_curwin, current, fr, dir, col, row, 2101 width, new_size); 2102 row += new_size; 2103 height -= new_size; 2104 totwincount -= wincount; 2105 } 2106 } 2107 } 2108 2109 /* 2110 * close all windows for buffer 'buf' 2111 */ 2112 void 2113 close_windows( 2114 buf_T *buf, 2115 int keep_curwin) /* don't close "curwin" */ 2116 { 2117 win_T *wp; 2118 tabpage_T *tp, *nexttp; 2119 int h = tabline_height(); 2120 #ifdef FEAT_AUTOCMD 2121 int count = tabpage_index(NULL); 2122 #endif 2123 2124 ++RedrawingDisabled; 2125 2126 for (wp = firstwin; wp != NULL && lastwin != firstwin; ) 2127 { 2128 if (wp->w_buffer == buf && (!keep_curwin || wp != curwin) 2129 #ifdef FEAT_AUTOCMD 2130 && !(wp->w_closing || wp->w_buffer->b_closing) 2131 #endif 2132 ) 2133 { 2134 win_close(wp, FALSE); 2135 2136 /* Start all over, autocommands may change the window layout. */ 2137 wp = firstwin; 2138 } 2139 else 2140 wp = wp->w_next; 2141 } 2142 2143 /* Also check windows in other tab pages. */ 2144 for (tp = first_tabpage; tp != NULL; tp = nexttp) 2145 { 2146 nexttp = tp->tp_next; 2147 if (tp != curtab) 2148 for (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next) 2149 if (wp->w_buffer == buf 2150 #ifdef FEAT_AUTOCMD 2151 && !(wp->w_closing || wp->w_buffer->b_closing) 2152 #endif 2153 ) 2154 { 2155 win_close_othertab(wp, FALSE, tp); 2156 2157 /* Start all over, the tab page may be closed and 2158 * autocommands may change the window layout. */ 2159 nexttp = first_tabpage; 2160 break; 2161 } 2162 } 2163 2164 --RedrawingDisabled; 2165 2166 #ifdef FEAT_AUTOCMD 2167 if (count != tabpage_index(NULL)) 2168 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2169 #endif 2170 2171 redraw_tabline = TRUE; 2172 if (h != tabline_height()) 2173 shell_new_rows(); 2174 } 2175 2176 /* 2177 * Return TRUE if the current window is the only window that exists (ignoring 2178 * "aucmd_win"). 2179 * Returns FALSE if there is a window, possibly in another tab page. 2180 */ 2181 static int 2182 last_window(void) 2183 { 2184 return (one_window() && first_tabpage->tp_next == NULL); 2185 } 2186 2187 /* 2188 * Return TRUE if there is only one window other than "aucmd_win" in the 2189 * current tab page. 2190 */ 2191 int 2192 one_window(void) 2193 { 2194 #ifdef FEAT_AUTOCMD 2195 win_T *wp; 2196 int seen_one = FALSE; 2197 2198 FOR_ALL_WINDOWS(wp) 2199 { 2200 if (wp != aucmd_win) 2201 { 2202 if (seen_one) 2203 return FALSE; 2204 seen_one = TRUE; 2205 } 2206 } 2207 return TRUE; 2208 #else 2209 return firstwin == lastwin; 2210 #endif 2211 } 2212 2213 /* 2214 * Close the possibly last window in a tab page. 2215 * Returns TRUE when the window was closed already. 2216 */ 2217 static int 2218 close_last_window_tabpage( 2219 win_T *win, 2220 int free_buf, 2221 tabpage_T *prev_curtab) 2222 { 2223 if (firstwin == lastwin) 2224 { 2225 #ifdef FEAT_AUTOCMD 2226 buf_T *old_curbuf = curbuf; 2227 #endif 2228 2229 /* 2230 * Closing the last window in a tab page. First go to another tab 2231 * page and then close the window and the tab page. This avoids that 2232 * curwin and curtab are invalid while we are freeing memory, they may 2233 * be used in GUI events. 2234 * Don't trigger autocommands yet, they may use wrong values, so do 2235 * that below. 2236 */ 2237 goto_tabpage_tp(alt_tabpage(), FALSE, TRUE); 2238 redraw_tabline = TRUE; 2239 2240 /* Safety check: Autocommands may have closed the window when jumping 2241 * to the other tab page. */ 2242 if (valid_tabpage(prev_curtab) && prev_curtab->tp_firstwin == win) 2243 { 2244 int h = tabline_height(); 2245 2246 win_close_othertab(win, free_buf, prev_curtab); 2247 if (h != tabline_height()) 2248 shell_new_rows(); 2249 } 2250 /* Since goto_tabpage_tp above did not trigger *Enter autocommands, do 2251 * that now. */ 2252 #ifdef FEAT_AUTOCMD 2253 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2254 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 2255 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 2256 if (old_curbuf != curbuf) 2257 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2258 #endif 2259 return TRUE; 2260 } 2261 return FALSE; 2262 } 2263 2264 /* 2265 * Close window "win". Only works for the current tab page. 2266 * If "free_buf" is TRUE related buffer may be unloaded. 2267 * 2268 * Called by :quit, :close, :xit, :wq and findtag(). 2269 * Returns FAIL when the window was not closed. 2270 */ 2271 int 2272 win_close(win_T *win, int free_buf) 2273 { 2274 win_T *wp; 2275 #ifdef FEAT_AUTOCMD 2276 int other_buffer = FALSE; 2277 #endif 2278 int close_curwin = FALSE; 2279 int dir; 2280 int help_window = FALSE; 2281 tabpage_T *prev_curtab = curtab; 2282 2283 if (last_window()) 2284 { 2285 EMSG(_("E444: Cannot close last window")); 2286 return FAIL; 2287 } 2288 2289 #ifdef FEAT_AUTOCMD 2290 if (win->w_closing || (win->w_buffer != NULL && win->w_buffer->b_closing)) 2291 return FAIL; /* window is already being closed */ 2292 if (win == aucmd_win) 2293 { 2294 EMSG(_("E813: Cannot close autocmd window")); 2295 return FAIL; 2296 } 2297 if ((firstwin == aucmd_win || lastwin == aucmd_win) && one_window()) 2298 { 2299 EMSG(_("E814: Cannot close window, only autocmd window would remain")); 2300 return FAIL; 2301 } 2302 #endif 2303 2304 /* When closing the last window in a tab page first go to another tab page 2305 * and then close the window and the tab page to avoid that curwin and 2306 * curtab are invalid while we are freeing memory. */ 2307 if (close_last_window_tabpage(win, free_buf, prev_curtab)) 2308 return FAIL; 2309 2310 /* When closing the help window, try restoring a snapshot after closing 2311 * the window. Otherwise clear the snapshot, it's now invalid. */ 2312 if (win->w_buffer != NULL && win->w_buffer->b_help) 2313 help_window = TRUE; 2314 else 2315 clear_snapshot(curtab, SNAP_HELP_IDX); 2316 2317 #ifdef FEAT_AUTOCMD 2318 if (win == curwin) 2319 { 2320 /* 2321 * Guess which window is going to be the new current window. 2322 * This may change because of the autocommands (sigh). 2323 */ 2324 wp = frame2win(win_altframe(win, NULL)); 2325 2326 /* 2327 * Be careful: If autocommands delete the window or cause this window 2328 * to be the last one left, return now. 2329 */ 2330 if (wp->w_buffer != curbuf) 2331 { 2332 other_buffer = TRUE; 2333 win->w_closing = TRUE; 2334 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 2335 if (!win_valid(win)) 2336 return FAIL; 2337 win->w_closing = FALSE; 2338 if (last_window()) 2339 return FAIL; 2340 } 2341 win->w_closing = TRUE; 2342 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 2343 if (!win_valid(win)) 2344 return FAIL; 2345 win->w_closing = FALSE; 2346 if (last_window()) 2347 return FAIL; 2348 # ifdef FEAT_EVAL 2349 /* autocmds may abort script processing */ 2350 if (aborting()) 2351 return FAIL; 2352 # endif 2353 } 2354 #endif 2355 2356 #ifdef FEAT_GUI 2357 /* Avoid trouble with scrollbars that are going to be deleted in 2358 * win_free(). */ 2359 if (gui.in_use) 2360 out_flush(); 2361 #endif 2362 2363 #ifdef FEAT_SYN_HL 2364 /* Free independent synblock before the buffer is freed. */ 2365 if (win->w_buffer != NULL) 2366 reset_synblock(win); 2367 #endif 2368 2369 /* 2370 * Close the link to the buffer. 2371 */ 2372 if (win->w_buffer != NULL) 2373 { 2374 bufref_T bufref; 2375 2376 set_bufref(&bufref, curbuf); 2377 #ifdef FEAT_AUTOCMD 2378 win->w_closing = TRUE; 2379 #endif 2380 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, TRUE); 2381 #ifdef FEAT_AUTOCMD 2382 if (win_valid(win)) 2383 win->w_closing = FALSE; 2384 #endif 2385 /* Make sure curbuf is valid. It can become invalid if 'bufhidden' is 2386 * "wipe". */ 2387 if (!bufref_valid(&bufref)) 2388 curbuf = firstbuf; 2389 } 2390 2391 if (only_one_window() && win_valid(win) && win->w_buffer == NULL 2392 && (last_window() || curtab != prev_curtab 2393 || close_last_window_tabpage(win, free_buf, prev_curtab))) 2394 { 2395 /* Autocommands have close all windows, quit now. Restore 2396 * curwin->w_buffer, otherwise writing viminfo may fail. */ 2397 if (curwin->w_buffer == NULL) 2398 curwin->w_buffer = curbuf; 2399 getout(0); 2400 } 2401 2402 /* Autocommands may have closed the window already, or closed the only 2403 * other window or moved to another tab page. */ 2404 else if (!win_valid(win) || last_window() || curtab != prev_curtab 2405 || close_last_window_tabpage(win, free_buf, prev_curtab)) 2406 return FAIL; 2407 2408 /* Free the memory used for the window and get the window that received 2409 * the screen space. */ 2410 wp = win_free_mem(win, &dir, NULL); 2411 2412 /* Make sure curwin isn't invalid. It can cause severe trouble when 2413 * printing an error message. For win_equal() curbuf needs to be valid 2414 * too. */ 2415 if (win == curwin) 2416 { 2417 curwin = wp; 2418 #ifdef FEAT_QUICKFIX 2419 if (wp->w_p_pvw || bt_quickfix(wp->w_buffer)) 2420 { 2421 /* 2422 * If the cursor goes to the preview or the quickfix window, try 2423 * finding another window to go to. 2424 */ 2425 for (;;) 2426 { 2427 if (wp->w_next == NULL) 2428 wp = firstwin; 2429 else 2430 wp = wp->w_next; 2431 if (wp == curwin) 2432 break; 2433 if (!wp->w_p_pvw && !bt_quickfix(wp->w_buffer)) 2434 { 2435 curwin = wp; 2436 break; 2437 } 2438 } 2439 } 2440 #endif 2441 curbuf = curwin->w_buffer; 2442 close_curwin = TRUE; 2443 } 2444 if (p_ea && (*p_ead == 'b' || *p_ead == dir)) 2445 win_equal(curwin, TRUE, dir); 2446 else 2447 win_comp_pos(); 2448 if (close_curwin) 2449 { 2450 win_enter_ext(wp, FALSE, TRUE, FALSE, TRUE, TRUE); 2451 #ifdef FEAT_AUTOCMD 2452 if (other_buffer) 2453 /* careful: after this wp and win may be invalid! */ 2454 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2455 #endif 2456 } 2457 2458 /* 2459 * If last window has a status line now and we don't want one, 2460 * remove the status line. 2461 */ 2462 last_status(FALSE); 2463 2464 /* After closing the help window, try restoring the window layout from 2465 * before it was opened. */ 2466 if (help_window) 2467 restore_snapshot(SNAP_HELP_IDX, close_curwin); 2468 2469 #if defined(FEAT_GUI) 2470 /* When 'guioptions' includes 'L' or 'R' may have to remove scrollbars. */ 2471 if (gui.in_use && !win_hasvertsplit()) 2472 gui_init_which_components(NULL); 2473 #endif 2474 2475 redraw_all_later(NOT_VALID); 2476 return OK; 2477 } 2478 2479 /* 2480 * Close window "win" in tab page "tp", which is not the current tab page. 2481 * This may be the last window in that tab page and result in closing the tab, 2482 * thus "tp" may become invalid! 2483 * Caller must check if buffer is hidden and whether the tabline needs to be 2484 * updated. 2485 */ 2486 void 2487 win_close_othertab(win_T *win, int free_buf, tabpage_T *tp) 2488 { 2489 win_T *wp; 2490 int dir; 2491 tabpage_T *ptp = NULL; 2492 int free_tp = FALSE; 2493 2494 #ifdef FEAT_AUTOCMD 2495 if (win->w_closing || win->w_buffer->b_closing) 2496 return; /* window is already being closed */ 2497 #endif 2498 2499 /* Close the link to the buffer. */ 2500 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, FALSE); 2501 2502 /* Careful: Autocommands may have closed the tab page or made it the 2503 * current tab page. */ 2504 for (ptp = first_tabpage; ptp != NULL && ptp != tp; ptp = ptp->tp_next) 2505 ; 2506 if (ptp == NULL || tp == curtab) 2507 return; 2508 2509 /* Autocommands may have closed the window already. */ 2510 for (wp = tp->tp_firstwin; wp != NULL && wp != win; wp = wp->w_next) 2511 ; 2512 if (wp == NULL) 2513 return; 2514 2515 /* When closing the last window in a tab page remove the tab page. */ 2516 if (tp->tp_firstwin == tp->tp_lastwin) 2517 { 2518 if (tp == first_tabpage) 2519 first_tabpage = tp->tp_next; 2520 else 2521 { 2522 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tp; 2523 ptp = ptp->tp_next) 2524 ; 2525 if (ptp == NULL) 2526 { 2527 EMSG2(_(e_intern2), "win_close_othertab()"); 2528 return; 2529 } 2530 ptp->tp_next = tp->tp_next; 2531 } 2532 free_tp = TRUE; 2533 } 2534 2535 /* Free the memory used for the window. */ 2536 win_free_mem(win, &dir, tp); 2537 2538 if (free_tp) 2539 free_tabpage(tp); 2540 } 2541 2542 /* 2543 * Free the memory used for a window. 2544 * Returns a pointer to the window that got the freed up space. 2545 */ 2546 static win_T * 2547 win_free_mem( 2548 win_T *win, 2549 int *dirp, /* set to 'v' or 'h' for direction if 'ea' */ 2550 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 2551 { 2552 frame_T *frp; 2553 win_T *wp; 2554 2555 /* Remove the window and its frame from the tree of frames. */ 2556 frp = win->w_frame; 2557 wp = winframe_remove(win, dirp, tp); 2558 vim_free(frp); 2559 win_free(win, tp); 2560 2561 /* When deleting the current window of another tab page select a new 2562 * current window. */ 2563 if (tp != NULL && win == tp->tp_curwin) 2564 tp->tp_curwin = wp; 2565 2566 return wp; 2567 } 2568 2569 #if defined(EXITFREE) || defined(PROTO) 2570 void 2571 win_free_all(void) 2572 { 2573 int dummy; 2574 2575 # ifdef FEAT_WINDOWS 2576 while (first_tabpage->tp_next != NULL) 2577 tabpage_close(TRUE); 2578 # endif 2579 2580 # ifdef FEAT_AUTOCMD 2581 if (aucmd_win != NULL) 2582 { 2583 (void)win_free_mem(aucmd_win, &dummy, NULL); 2584 aucmd_win = NULL; 2585 } 2586 # endif 2587 2588 while (firstwin != NULL) 2589 (void)win_free_mem(firstwin, &dummy, NULL); 2590 2591 /* No window should be used after this. Set curwin to NULL to crash 2592 * instead of using freed memory. */ 2593 curwin = NULL; 2594 } 2595 #endif 2596 2597 /* 2598 * Remove a window and its frame from the tree of frames. 2599 * Returns a pointer to the window that got the freed up space. 2600 */ 2601 win_T * 2602 winframe_remove( 2603 win_T *win, 2604 int *dirp UNUSED, /* set to 'v' or 'h' for direction if 'ea' */ 2605 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 2606 { 2607 frame_T *frp, *frp2, *frp3; 2608 frame_T *frp_close = win->w_frame; 2609 win_T *wp; 2610 2611 /* 2612 * If there is only one window there is nothing to remove. 2613 */ 2614 if (tp == NULL ? firstwin == lastwin : tp->tp_firstwin == tp->tp_lastwin) 2615 return NULL; 2616 2617 /* 2618 * Remove the window from its frame. 2619 */ 2620 frp2 = win_altframe(win, tp); 2621 wp = frame2win(frp2); 2622 2623 /* Remove this frame from the list of frames. */ 2624 frame_remove(frp_close); 2625 2626 if (frp_close->fr_parent->fr_layout == FR_COL) 2627 { 2628 /* When 'winfixheight' is set, try to find another frame in the column 2629 * (as close to the closed frame as possible) to distribute the height 2630 * to. */ 2631 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfh) 2632 { 2633 frp = frp_close->fr_prev; 2634 frp3 = frp_close->fr_next; 2635 while (frp != NULL || frp3 != NULL) 2636 { 2637 if (frp != NULL) 2638 { 2639 if (frp->fr_win != NULL && !frp->fr_win->w_p_wfh) 2640 { 2641 frp2 = frp; 2642 wp = frp->fr_win; 2643 break; 2644 } 2645 frp = frp->fr_prev; 2646 } 2647 if (frp3 != NULL) 2648 { 2649 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfh) 2650 { 2651 frp2 = frp3; 2652 wp = frp3->fr_win; 2653 break; 2654 } 2655 frp3 = frp3->fr_next; 2656 } 2657 } 2658 } 2659 frame_new_height(frp2, frp2->fr_height + frp_close->fr_height, 2660 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2661 *dirp = 'v'; 2662 } 2663 else 2664 { 2665 /* When 'winfixwidth' is set, try to find another frame in the column 2666 * (as close to the closed frame as possible) to distribute the width 2667 * to. */ 2668 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfw) 2669 { 2670 frp = frp_close->fr_prev; 2671 frp3 = frp_close->fr_next; 2672 while (frp != NULL || frp3 != NULL) 2673 { 2674 if (frp != NULL) 2675 { 2676 if (frp->fr_win != NULL && !frp->fr_win->w_p_wfw) 2677 { 2678 frp2 = frp; 2679 wp = frp->fr_win; 2680 break; 2681 } 2682 frp = frp->fr_prev; 2683 } 2684 if (frp3 != NULL) 2685 { 2686 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfw) 2687 { 2688 frp2 = frp3; 2689 wp = frp3->fr_win; 2690 break; 2691 } 2692 frp3 = frp3->fr_next; 2693 } 2694 } 2695 } 2696 frame_new_width(frp2, frp2->fr_width + frp_close->fr_width, 2697 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2698 *dirp = 'h'; 2699 } 2700 2701 /* If rows/columns go to a window below/right its positions need to be 2702 * updated. Can only be done after the sizes have been updated. */ 2703 if (frp2 == frp_close->fr_next) 2704 { 2705 int row = win->w_winrow; 2706 int col = W_WINCOL(win); 2707 2708 frame_comp_pos(frp2, &row, &col); 2709 } 2710 2711 if (frp2->fr_next == NULL && frp2->fr_prev == NULL) 2712 { 2713 /* There is no other frame in this list, move its info to the parent 2714 * and remove it. */ 2715 frp2->fr_parent->fr_layout = frp2->fr_layout; 2716 frp2->fr_parent->fr_child = frp2->fr_child; 2717 for (frp = frp2->fr_child; frp != NULL; frp = frp->fr_next) 2718 frp->fr_parent = frp2->fr_parent; 2719 frp2->fr_parent->fr_win = frp2->fr_win; 2720 if (frp2->fr_win != NULL) 2721 frp2->fr_win->w_frame = frp2->fr_parent; 2722 frp = frp2->fr_parent; 2723 vim_free(frp2); 2724 2725 frp2 = frp->fr_parent; 2726 if (frp2 != NULL && frp2->fr_layout == frp->fr_layout) 2727 { 2728 /* The frame above the parent has the same layout, have to merge 2729 * the frames into this list. */ 2730 if (frp2->fr_child == frp) 2731 frp2->fr_child = frp->fr_child; 2732 frp->fr_child->fr_prev = frp->fr_prev; 2733 if (frp->fr_prev != NULL) 2734 frp->fr_prev->fr_next = frp->fr_child; 2735 for (frp3 = frp->fr_child; ; frp3 = frp3->fr_next) 2736 { 2737 frp3->fr_parent = frp2; 2738 if (frp3->fr_next == NULL) 2739 { 2740 frp3->fr_next = frp->fr_next; 2741 if (frp->fr_next != NULL) 2742 frp->fr_next->fr_prev = frp3; 2743 break; 2744 } 2745 } 2746 vim_free(frp); 2747 } 2748 } 2749 2750 return wp; 2751 } 2752 2753 /* 2754 * Find out which frame is going to get the freed up space when "win" is 2755 * closed. 2756 * if 'splitbelow'/'splitleft' the space goes to the window above/left. 2757 * if 'nosplitbelow'/'nosplitleft' the space goes to the window below/right. 2758 * This makes opening a window and closing it immediately keep the same window 2759 * layout. 2760 */ 2761 static frame_T * 2762 win_altframe( 2763 win_T *win, 2764 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 2765 { 2766 frame_T *frp; 2767 int b; 2768 2769 if (tp == NULL ? firstwin == lastwin : tp->tp_firstwin == tp->tp_lastwin) 2770 /* Last window in this tab page, will go to next tab page. */ 2771 return alt_tabpage()->tp_curwin->w_frame; 2772 2773 frp = win->w_frame; 2774 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW) 2775 b = p_spr; 2776 else 2777 b = p_sb; 2778 if ((!b && frp->fr_next != NULL) || frp->fr_prev == NULL) 2779 return frp->fr_next; 2780 return frp->fr_prev; 2781 } 2782 2783 /* 2784 * Return the tabpage that will be used if the current one is closed. 2785 */ 2786 static tabpage_T * 2787 alt_tabpage(void) 2788 { 2789 tabpage_T *tp; 2790 2791 /* Use the next tab page if possible. */ 2792 if (curtab->tp_next != NULL) 2793 return curtab->tp_next; 2794 2795 /* Find the last but one tab page. */ 2796 for (tp = first_tabpage; tp->tp_next != curtab; tp = tp->tp_next) 2797 ; 2798 return tp; 2799 } 2800 2801 /* 2802 * Find the left-upper window in frame "frp". 2803 */ 2804 static win_T * 2805 frame2win(frame_T *frp) 2806 { 2807 while (frp->fr_win == NULL) 2808 frp = frp->fr_child; 2809 return frp->fr_win; 2810 } 2811 2812 /* 2813 * Return TRUE if frame "frp" contains window "wp". 2814 */ 2815 static int 2816 frame_has_win(frame_T *frp, win_T *wp) 2817 { 2818 frame_T *p; 2819 2820 if (frp->fr_layout == FR_LEAF) 2821 return frp->fr_win == wp; 2822 2823 for (p = frp->fr_child; p != NULL; p = p->fr_next) 2824 if (frame_has_win(p, wp)) 2825 return TRUE; 2826 return FALSE; 2827 } 2828 2829 /* 2830 * Set a new height for a frame. Recursively sets the height for contained 2831 * frames and windows. Caller must take care of positions. 2832 */ 2833 static void 2834 frame_new_height( 2835 frame_T *topfrp, 2836 int height, 2837 int topfirst, /* resize topmost contained frame first */ 2838 int wfh) /* obey 'winfixheight' when there is a choice; 2839 may cause the height not to be set */ 2840 { 2841 frame_T *frp; 2842 int extra_lines; 2843 int h; 2844 2845 if (topfrp->fr_win != NULL) 2846 { 2847 /* Simple case: just one window. */ 2848 win_new_height(topfrp->fr_win, 2849 height - topfrp->fr_win->w_status_height); 2850 } 2851 else if (topfrp->fr_layout == FR_ROW) 2852 { 2853 do 2854 { 2855 /* All frames in this row get the same new height. */ 2856 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 2857 { 2858 frame_new_height(frp, height, topfirst, wfh); 2859 if (frp->fr_height > height) 2860 { 2861 /* Could not fit the windows, make the whole row higher. */ 2862 height = frp->fr_height; 2863 break; 2864 } 2865 } 2866 } 2867 while (frp != NULL); 2868 } 2869 else /* fr_layout == FR_COL */ 2870 { 2871 /* Complicated case: Resize a column of frames. Resize the bottom 2872 * frame first, frames above that when needed. */ 2873 2874 frp = topfrp->fr_child; 2875 if (wfh) 2876 /* Advance past frames with one window with 'wfh' set. */ 2877 while (frame_fixed_height(frp)) 2878 { 2879 frp = frp->fr_next; 2880 if (frp == NULL) 2881 return; /* no frame without 'wfh', give up */ 2882 } 2883 if (!topfirst) 2884 { 2885 /* Find the bottom frame of this column */ 2886 while (frp->fr_next != NULL) 2887 frp = frp->fr_next; 2888 if (wfh) 2889 /* Advance back for frames with one window with 'wfh' set. */ 2890 while (frame_fixed_height(frp)) 2891 frp = frp->fr_prev; 2892 } 2893 2894 extra_lines = height - topfrp->fr_height; 2895 if (extra_lines < 0) 2896 { 2897 /* reduce height of contained frames, bottom or top frame first */ 2898 while (frp != NULL) 2899 { 2900 h = frame_minheight(frp, NULL); 2901 if (frp->fr_height + extra_lines < h) 2902 { 2903 extra_lines += frp->fr_height - h; 2904 frame_new_height(frp, h, topfirst, wfh); 2905 } 2906 else 2907 { 2908 frame_new_height(frp, frp->fr_height + extra_lines, 2909 topfirst, wfh); 2910 break; 2911 } 2912 if (topfirst) 2913 { 2914 do 2915 frp = frp->fr_next; 2916 while (wfh && frp != NULL && frame_fixed_height(frp)); 2917 } 2918 else 2919 { 2920 do 2921 frp = frp->fr_prev; 2922 while (wfh && frp != NULL && frame_fixed_height(frp)); 2923 } 2924 /* Increase "height" if we could not reduce enough frames. */ 2925 if (frp == NULL) 2926 height -= extra_lines; 2927 } 2928 } 2929 else if (extra_lines > 0) 2930 { 2931 /* increase height of bottom or top frame */ 2932 frame_new_height(frp, frp->fr_height + extra_lines, topfirst, wfh); 2933 } 2934 } 2935 topfrp->fr_height = height; 2936 } 2937 2938 /* 2939 * Return TRUE if height of frame "frp" should not be changed because of 2940 * the 'winfixheight' option. 2941 */ 2942 static int 2943 frame_fixed_height(frame_T *frp) 2944 { 2945 /* frame with one window: fixed height if 'winfixheight' set. */ 2946 if (frp->fr_win != NULL) 2947 return frp->fr_win->w_p_wfh; 2948 2949 if (frp->fr_layout == FR_ROW) 2950 { 2951 /* The frame is fixed height if one of the frames in the row is fixed 2952 * height. */ 2953 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2954 if (frame_fixed_height(frp)) 2955 return TRUE; 2956 return FALSE; 2957 } 2958 2959 /* frp->fr_layout == FR_COL: The frame is fixed height if all of the 2960 * frames in the row are fixed height. */ 2961 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2962 if (!frame_fixed_height(frp)) 2963 return FALSE; 2964 return TRUE; 2965 } 2966 2967 /* 2968 * Return TRUE if width of frame "frp" should not be changed because of 2969 * the 'winfixwidth' option. 2970 */ 2971 static int 2972 frame_fixed_width(frame_T *frp) 2973 { 2974 /* frame with one window: fixed width if 'winfixwidth' set. */ 2975 if (frp->fr_win != NULL) 2976 return frp->fr_win->w_p_wfw; 2977 2978 if (frp->fr_layout == FR_COL) 2979 { 2980 /* The frame is fixed width if one of the frames in the row is fixed 2981 * width. */ 2982 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2983 if (frame_fixed_width(frp)) 2984 return TRUE; 2985 return FALSE; 2986 } 2987 2988 /* frp->fr_layout == FR_ROW: The frame is fixed width if all of the 2989 * frames in the row are fixed width. */ 2990 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2991 if (!frame_fixed_width(frp)) 2992 return FALSE; 2993 return TRUE; 2994 } 2995 2996 /* 2997 * Add a status line to windows at the bottom of "frp". 2998 * Note: Does not check if there is room! 2999 */ 3000 static void 3001 frame_add_statusline(frame_T *frp) 3002 { 3003 win_T *wp; 3004 3005 if (frp->fr_layout == FR_LEAF) 3006 { 3007 wp = frp->fr_win; 3008 if (wp->w_status_height == 0) 3009 { 3010 if (wp->w_height > 0) /* don't make it negative */ 3011 --wp->w_height; 3012 wp->w_status_height = STATUS_HEIGHT; 3013 } 3014 } 3015 else if (frp->fr_layout == FR_ROW) 3016 { 3017 /* Handle all the frames in the row. */ 3018 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 3019 frame_add_statusline(frp); 3020 } 3021 else /* frp->fr_layout == FR_COL */ 3022 { 3023 /* Only need to handle the last frame in the column. */ 3024 for (frp = frp->fr_child; frp->fr_next != NULL; frp = frp->fr_next) 3025 ; 3026 frame_add_statusline(frp); 3027 } 3028 } 3029 3030 /* 3031 * Set width of a frame. Handles recursively going through contained frames. 3032 * May remove separator line for windows at the right side (for win_close()). 3033 */ 3034 static void 3035 frame_new_width( 3036 frame_T *topfrp, 3037 int width, 3038 int leftfirst, /* resize leftmost contained frame first */ 3039 int wfw) /* obey 'winfixwidth' when there is a choice; 3040 may cause the width not to be set */ 3041 { 3042 frame_T *frp; 3043 int extra_cols; 3044 int w; 3045 win_T *wp; 3046 3047 if (topfrp->fr_layout == FR_LEAF) 3048 { 3049 /* Simple case: just one window. */ 3050 wp = topfrp->fr_win; 3051 /* Find out if there are any windows right of this one. */ 3052 for (frp = topfrp; frp->fr_parent != NULL; frp = frp->fr_parent) 3053 if (frp->fr_parent->fr_layout == FR_ROW && frp->fr_next != NULL) 3054 break; 3055 if (frp->fr_parent == NULL) 3056 wp->w_vsep_width = 0; 3057 win_new_width(wp, width - wp->w_vsep_width); 3058 } 3059 else if (topfrp->fr_layout == FR_COL) 3060 { 3061 do 3062 { 3063 /* All frames in this column get the same new width. */ 3064 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3065 { 3066 frame_new_width(frp, width, leftfirst, wfw); 3067 if (frp->fr_width > width) 3068 { 3069 /* Could not fit the windows, make whole column wider. */ 3070 width = frp->fr_width; 3071 break; 3072 } 3073 } 3074 } while (frp != NULL); 3075 } 3076 else /* fr_layout == FR_ROW */ 3077 { 3078 /* Complicated case: Resize a row of frames. Resize the rightmost 3079 * frame first, frames left of it when needed. */ 3080 3081 frp = topfrp->fr_child; 3082 if (wfw) 3083 /* Advance past frames with one window with 'wfw' set. */ 3084 while (frame_fixed_width(frp)) 3085 { 3086 frp = frp->fr_next; 3087 if (frp == NULL) 3088 return; /* no frame without 'wfw', give up */ 3089 } 3090 if (!leftfirst) 3091 { 3092 /* Find the rightmost frame of this row */ 3093 while (frp->fr_next != NULL) 3094 frp = frp->fr_next; 3095 if (wfw) 3096 /* Advance back for frames with one window with 'wfw' set. */ 3097 while (frame_fixed_width(frp)) 3098 frp = frp->fr_prev; 3099 } 3100 3101 extra_cols = width - topfrp->fr_width; 3102 if (extra_cols < 0) 3103 { 3104 /* reduce frame width, rightmost frame first */ 3105 while (frp != NULL) 3106 { 3107 w = frame_minwidth(frp, NULL); 3108 if (frp->fr_width + extra_cols < w) 3109 { 3110 extra_cols += frp->fr_width - w; 3111 frame_new_width(frp, w, leftfirst, wfw); 3112 } 3113 else 3114 { 3115 frame_new_width(frp, frp->fr_width + extra_cols, 3116 leftfirst, wfw); 3117 break; 3118 } 3119 if (leftfirst) 3120 { 3121 do 3122 frp = frp->fr_next; 3123 while (wfw && frp != NULL && frame_fixed_width(frp)); 3124 } 3125 else 3126 { 3127 do 3128 frp = frp->fr_prev; 3129 while (wfw && frp != NULL && frame_fixed_width(frp)); 3130 } 3131 /* Increase "width" if we could not reduce enough frames. */ 3132 if (frp == NULL) 3133 width -= extra_cols; 3134 } 3135 } 3136 else if (extra_cols > 0) 3137 { 3138 /* increase width of rightmost frame */ 3139 frame_new_width(frp, frp->fr_width + extra_cols, leftfirst, wfw); 3140 } 3141 } 3142 topfrp->fr_width = width; 3143 } 3144 3145 /* 3146 * Add the vertical separator to windows at the right side of "frp". 3147 * Note: Does not check if there is room! 3148 */ 3149 static void 3150 frame_add_vsep(frame_T *frp) 3151 { 3152 win_T *wp; 3153 3154 if (frp->fr_layout == FR_LEAF) 3155 { 3156 wp = frp->fr_win; 3157 if (wp->w_vsep_width == 0) 3158 { 3159 if (wp->w_width > 0) /* don't make it negative */ 3160 --wp->w_width; 3161 wp->w_vsep_width = 1; 3162 } 3163 } 3164 else if (frp->fr_layout == FR_COL) 3165 { 3166 /* Handle all the frames in the column. */ 3167 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 3168 frame_add_vsep(frp); 3169 } 3170 else /* frp->fr_layout == FR_ROW */ 3171 { 3172 /* Only need to handle the last frame in the row. */ 3173 frp = frp->fr_child; 3174 while (frp->fr_next != NULL) 3175 frp = frp->fr_next; 3176 frame_add_vsep(frp); 3177 } 3178 } 3179 3180 /* 3181 * Set frame width from the window it contains. 3182 */ 3183 static void 3184 frame_fix_width(win_T *wp) 3185 { 3186 wp->w_frame->fr_width = wp->w_width + wp->w_vsep_width; 3187 } 3188 3189 /* 3190 * Set frame height from the window it contains. 3191 */ 3192 static void 3193 frame_fix_height(win_T *wp) 3194 { 3195 wp->w_frame->fr_height = wp->w_height + wp->w_status_height; 3196 } 3197 3198 /* 3199 * Compute the minimal height for frame "topfrp". 3200 * Uses the 'winminheight' option. 3201 * When "next_curwin" isn't NULL, use p_wh for this window. 3202 * When "next_curwin" is NOWIN, don't use at least one line for the current 3203 * window. 3204 */ 3205 static int 3206 frame_minheight(frame_T *topfrp, win_T *next_curwin) 3207 { 3208 frame_T *frp; 3209 int m; 3210 int n; 3211 3212 if (topfrp->fr_win != NULL) 3213 { 3214 if (topfrp->fr_win == next_curwin) 3215 m = p_wh + topfrp->fr_win->w_status_height; 3216 else 3217 { 3218 /* window: minimal height of the window plus status line */ 3219 m = p_wmh + topfrp->fr_win->w_status_height; 3220 /* Current window is minimal one line high */ 3221 if (p_wmh == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3222 ++m; 3223 } 3224 } 3225 else if (topfrp->fr_layout == FR_ROW) 3226 { 3227 /* get the minimal height from each frame in this row */ 3228 m = 0; 3229 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3230 { 3231 n = frame_minheight(frp, next_curwin); 3232 if (n > m) 3233 m = n; 3234 } 3235 } 3236 else 3237 { 3238 /* Add up the minimal heights for all frames in this column. */ 3239 m = 0; 3240 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3241 m += frame_minheight(frp, next_curwin); 3242 } 3243 3244 return m; 3245 } 3246 3247 /* 3248 * Compute the minimal width for frame "topfrp". 3249 * When "next_curwin" isn't NULL, use p_wiw for this window. 3250 * When "next_curwin" is NOWIN, don't use at least one column for the current 3251 * window. 3252 */ 3253 static int 3254 frame_minwidth( 3255 frame_T *topfrp, 3256 win_T *next_curwin) /* use p_wh and p_wiw for next_curwin */ 3257 { 3258 frame_T *frp; 3259 int m, n; 3260 3261 if (topfrp->fr_win != NULL) 3262 { 3263 if (topfrp->fr_win == next_curwin) 3264 m = p_wiw + topfrp->fr_win->w_vsep_width; 3265 else 3266 { 3267 /* window: minimal width of the window plus separator column */ 3268 m = p_wmw + topfrp->fr_win->w_vsep_width; 3269 /* Current window is minimal one column wide */ 3270 if (p_wmw == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3271 ++m; 3272 } 3273 } 3274 else if (topfrp->fr_layout == FR_COL) 3275 { 3276 /* get the minimal width from each frame in this column */ 3277 m = 0; 3278 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3279 { 3280 n = frame_minwidth(frp, next_curwin); 3281 if (n > m) 3282 m = n; 3283 } 3284 } 3285 else 3286 { 3287 /* Add up the minimal widths for all frames in this row. */ 3288 m = 0; 3289 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3290 m += frame_minwidth(frp, next_curwin); 3291 } 3292 3293 return m; 3294 } 3295 3296 3297 /* 3298 * Try to close all windows except current one. 3299 * Buffers in the other windows become hidden if 'hidden' is set, or '!' is 3300 * used and the buffer was modified. 3301 * 3302 * Used by ":bdel" and ":only". 3303 */ 3304 void 3305 close_others( 3306 int message, 3307 int forceit) /* always hide all other windows */ 3308 { 3309 win_T *wp; 3310 win_T *nextwp; 3311 int r; 3312 3313 if (one_window()) 3314 { 3315 if (message 3316 #ifdef FEAT_AUTOCMD 3317 && !autocmd_busy 3318 #endif 3319 ) 3320 MSG(_(m_onlyone)); 3321 return; 3322 } 3323 3324 /* Be very careful here: autocommands may change the window layout. */ 3325 for (wp = firstwin; win_valid(wp); wp = nextwp) 3326 { 3327 nextwp = wp->w_next; 3328 if (wp != curwin) /* don't close current window */ 3329 { 3330 3331 /* Check if it's allowed to abandon this window */ 3332 r = can_abandon(wp->w_buffer, forceit); 3333 #ifdef FEAT_AUTOCMD 3334 if (!win_valid(wp)) /* autocommands messed wp up */ 3335 { 3336 nextwp = firstwin; 3337 continue; 3338 } 3339 #endif 3340 if (!r) 3341 { 3342 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 3343 if (message && (p_confirm || cmdmod.confirm) && p_write) 3344 { 3345 dialog_changed(wp->w_buffer, FALSE); 3346 # ifdef FEAT_AUTOCMD 3347 if (!win_valid(wp)) /* autocommands messed wp up */ 3348 { 3349 nextwp = firstwin; 3350 continue; 3351 } 3352 # endif 3353 } 3354 if (bufIsChanged(wp->w_buffer)) 3355 #endif 3356 continue; 3357 } 3358 win_close(wp, !P_HID(wp->w_buffer) && !bufIsChanged(wp->w_buffer)); 3359 } 3360 } 3361 3362 if (message && lastwin != firstwin) 3363 EMSG(_("E445: Other window contains changes")); 3364 } 3365 3366 #endif /* FEAT_WINDOWS */ 3367 3368 /* 3369 * Init the current window "curwin". 3370 * Called when a new file is being edited. 3371 */ 3372 void 3373 curwin_init(void) 3374 { 3375 win_init_empty(curwin); 3376 } 3377 3378 void 3379 win_init_empty(win_T *wp) 3380 { 3381 redraw_win_later(wp, NOT_VALID); 3382 wp->w_lines_valid = 0; 3383 wp->w_cursor.lnum = 1; 3384 wp->w_curswant = wp->w_cursor.col = 0; 3385 #ifdef FEAT_VIRTUALEDIT 3386 wp->w_cursor.coladd = 0; 3387 #endif 3388 wp->w_pcmark.lnum = 1; /* pcmark not cleared but set to line 1 */ 3389 wp->w_pcmark.col = 0; 3390 wp->w_prev_pcmark.lnum = 0; 3391 wp->w_prev_pcmark.col = 0; 3392 wp->w_topline = 1; 3393 #ifdef FEAT_DIFF 3394 wp->w_topfill = 0; 3395 #endif 3396 wp->w_botline = 2; 3397 #ifdef FEAT_FKMAP 3398 if (wp->w_p_rl) 3399 wp->w_farsi = W_CONV + W_R_L; 3400 else 3401 wp->w_farsi = W_CONV; 3402 #endif 3403 #ifdef FEAT_SYN_HL 3404 wp->w_s = &wp->w_buffer->b_s; 3405 #endif 3406 } 3407 3408 /* 3409 * Allocate the first window and put an empty buffer in it. 3410 * Called from main(). 3411 * Return FAIL when something goes wrong (out of memory). 3412 */ 3413 int 3414 win_alloc_first(void) 3415 { 3416 if (win_alloc_firstwin(NULL) == FAIL) 3417 return FAIL; 3418 3419 #ifdef FEAT_WINDOWS 3420 first_tabpage = alloc_tabpage(); 3421 if (first_tabpage == NULL) 3422 return FAIL; 3423 first_tabpage->tp_topframe = topframe; 3424 curtab = first_tabpage; 3425 #endif 3426 3427 return OK; 3428 } 3429 3430 #if defined(FEAT_AUTOCMD) || defined(PROTO) 3431 /* 3432 * Init "aucmd_win". This can only be done after the first 3433 * window is fully initialized, thus it can't be in win_alloc_first(). 3434 */ 3435 void 3436 win_alloc_aucmd_win(void) 3437 { 3438 aucmd_win = win_alloc(NULL, TRUE); 3439 if (aucmd_win != NULL) 3440 { 3441 win_init_some(aucmd_win, curwin); 3442 RESET_BINDING(aucmd_win); 3443 new_frame(aucmd_win); 3444 } 3445 } 3446 #endif 3447 3448 /* 3449 * Allocate the first window or the first window in a new tab page. 3450 * When "oldwin" is NULL create an empty buffer for it. 3451 * When "oldwin" is not NULL copy info from it to the new window (only with 3452 * FEAT_WINDOWS). 3453 * Return FAIL when something goes wrong (out of memory). 3454 */ 3455 static int 3456 win_alloc_firstwin(win_T *oldwin) 3457 { 3458 curwin = win_alloc(NULL, FALSE); 3459 if (oldwin == NULL) 3460 { 3461 /* Very first window, need to create an empty buffer for it and 3462 * initialize from scratch. */ 3463 curbuf = buflist_new(NULL, NULL, 1L, BLN_LISTED); 3464 if (curwin == NULL || curbuf == NULL) 3465 return FAIL; 3466 curwin->w_buffer = curbuf; 3467 #ifdef FEAT_SYN_HL 3468 curwin->w_s = &(curbuf->b_s); 3469 #endif 3470 curbuf->b_nwindows = 1; /* there is one window */ 3471 #ifdef FEAT_WINDOWS 3472 curwin->w_alist = &global_alist; 3473 #endif 3474 curwin_init(); /* init current window */ 3475 } 3476 #ifdef FEAT_WINDOWS 3477 else 3478 { 3479 /* First window in new tab page, initialize it from "oldwin". */ 3480 win_init(curwin, oldwin, 0); 3481 3482 /* We don't want cursor- and scroll-binding in the first window. */ 3483 RESET_BINDING(curwin); 3484 } 3485 #endif 3486 3487 new_frame(curwin); 3488 if (curwin->w_frame == NULL) 3489 return FAIL; 3490 topframe = curwin->w_frame; 3491 #ifdef FEAT_WINDOWS 3492 topframe->fr_width = Columns; 3493 #endif 3494 topframe->fr_height = Rows - p_ch; 3495 topframe->fr_win = curwin; 3496 3497 return OK; 3498 } 3499 3500 /* 3501 * Create a frame for window "wp". 3502 */ 3503 static void 3504 new_frame(win_T *wp) 3505 { 3506 frame_T *frp = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); 3507 3508 wp->w_frame = frp; 3509 if (frp != NULL) 3510 { 3511 frp->fr_layout = FR_LEAF; 3512 frp->fr_win = wp; 3513 } 3514 } 3515 3516 /* 3517 * Initialize the window and frame size to the maximum. 3518 */ 3519 void 3520 win_init_size(void) 3521 { 3522 firstwin->w_height = ROWS_AVAIL; 3523 topframe->fr_height = ROWS_AVAIL; 3524 #ifdef FEAT_WINDOWS 3525 firstwin->w_width = Columns; 3526 topframe->fr_width = Columns; 3527 #endif 3528 } 3529 3530 #if defined(FEAT_WINDOWS) || defined(PROTO) 3531 3532 /* 3533 * Allocate a new tabpage_T and init the values. 3534 * Returns NULL when out of memory. 3535 */ 3536 static tabpage_T * 3537 alloc_tabpage(void) 3538 { 3539 tabpage_T *tp; 3540 # ifdef FEAT_GUI 3541 int i; 3542 # endif 3543 3544 3545 tp = (tabpage_T *)alloc_clear((unsigned)sizeof(tabpage_T)); 3546 if (tp == NULL) 3547 return NULL; 3548 3549 # ifdef FEAT_EVAL 3550 /* init t: variables */ 3551 tp->tp_vars = dict_alloc(); 3552 if (tp->tp_vars == NULL) 3553 { 3554 vim_free(tp); 3555 return NULL; 3556 } 3557 init_var_dict(tp->tp_vars, &tp->tp_winvar, VAR_SCOPE); 3558 # endif 3559 3560 # ifdef FEAT_GUI 3561 for (i = 0; i < 3; i++) 3562 tp->tp_prev_which_scrollbars[i] = -1; 3563 # endif 3564 # ifdef FEAT_DIFF 3565 tp->tp_diff_invalid = TRUE; 3566 # endif 3567 tp->tp_ch_used = p_ch; 3568 3569 return tp; 3570 } 3571 3572 void 3573 free_tabpage(tabpage_T *tp) 3574 { 3575 int idx; 3576 3577 # ifdef FEAT_DIFF 3578 diff_clear(tp); 3579 # endif 3580 for (idx = 0; idx < SNAP_COUNT; ++idx) 3581 clear_snapshot(tp, idx); 3582 #ifdef FEAT_EVAL 3583 vars_clear(&tp->tp_vars->dv_hashtab); /* free all t: variables */ 3584 hash_init(&tp->tp_vars->dv_hashtab); 3585 unref_var_dict(tp->tp_vars); 3586 #endif 3587 3588 #ifdef FEAT_PYTHON 3589 python_tabpage_free(tp); 3590 #endif 3591 3592 #ifdef FEAT_PYTHON3 3593 python3_tabpage_free(tp); 3594 #endif 3595 3596 vim_free(tp); 3597 } 3598 3599 /* 3600 * Create a new Tab page with one window. 3601 * It will edit the current buffer, like after ":split". 3602 * When "after" is 0 put it just after the current Tab page. 3603 * Otherwise put it just before tab page "after". 3604 * Return FAIL or OK. 3605 */ 3606 int 3607 win_new_tabpage(int after) 3608 { 3609 tabpage_T *tp = curtab; 3610 tabpage_T *newtp; 3611 int n; 3612 3613 newtp = alloc_tabpage(); 3614 if (newtp == NULL) 3615 return FAIL; 3616 3617 /* Remember the current windows in this Tab page. */ 3618 if (leave_tabpage(curbuf, TRUE) == FAIL) 3619 { 3620 vim_free(newtp); 3621 return FAIL; 3622 } 3623 curtab = newtp; 3624 3625 /* Create a new empty window. */ 3626 if (win_alloc_firstwin(tp->tp_curwin) == OK) 3627 { 3628 /* Make the new Tab page the new topframe. */ 3629 if (after == 1) 3630 { 3631 /* New tab page becomes the first one. */ 3632 newtp->tp_next = first_tabpage; 3633 first_tabpage = newtp; 3634 } 3635 else 3636 { 3637 if (after > 0) 3638 { 3639 /* Put new tab page before tab page "after". */ 3640 n = 2; 3641 for (tp = first_tabpage; tp->tp_next != NULL 3642 && n < after; tp = tp->tp_next) 3643 ++n; 3644 } 3645 newtp->tp_next = tp->tp_next; 3646 tp->tp_next = newtp; 3647 } 3648 win_init_size(); 3649 firstwin->w_winrow = tabline_height(); 3650 win_comp_scroll(curwin); 3651 3652 newtp->tp_topframe = topframe; 3653 last_status(FALSE); 3654 3655 #if defined(FEAT_GUI) 3656 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 3657 * scrollbars. Have to update them anyway. */ 3658 gui_may_update_scrollbars(); 3659 #endif 3660 3661 redraw_all_later(CLEAR); 3662 #ifdef FEAT_AUTOCMD 3663 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 3664 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 3665 apply_autocmds(EVENT_TABNEW, NULL, NULL, FALSE, curbuf); 3666 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3667 #endif 3668 return OK; 3669 } 3670 3671 /* Failed, get back the previous Tab page */ 3672 enter_tabpage(curtab, curbuf, TRUE, TRUE); 3673 return FAIL; 3674 } 3675 3676 /* 3677 * Open a new tab page if ":tab cmd" was used. It will edit the same buffer, 3678 * like with ":split". 3679 * Returns OK if a new tab page was created, FAIL otherwise. 3680 */ 3681 int 3682 may_open_tabpage(void) 3683 { 3684 int n = (cmdmod.tab == 0) ? postponed_split_tab : cmdmod.tab; 3685 3686 if (n != 0) 3687 { 3688 cmdmod.tab = 0; /* reset it to avoid doing it twice */ 3689 postponed_split_tab = 0; 3690 return win_new_tabpage(n); 3691 } 3692 return FAIL; 3693 } 3694 3695 /* 3696 * Create up to "maxcount" tabpages with empty windows. 3697 * Returns the number of resulting tab pages. 3698 */ 3699 int 3700 make_tabpages(int maxcount) 3701 { 3702 int count = maxcount; 3703 int todo; 3704 3705 /* Limit to 'tabpagemax' tabs. */ 3706 if (count > p_tpm) 3707 count = p_tpm; 3708 3709 #ifdef FEAT_AUTOCMD 3710 /* 3711 * Don't execute autocommands while creating the tab pages. Must do that 3712 * when putting the buffers in the windows. 3713 */ 3714 block_autocmds(); 3715 #endif 3716 3717 for (todo = count - 1; todo > 0; --todo) 3718 if (win_new_tabpage(0) == FAIL) 3719 break; 3720 3721 #ifdef FEAT_AUTOCMD 3722 unblock_autocmds(); 3723 #endif 3724 3725 /* return actual number of tab pages */ 3726 return (count - todo); 3727 } 3728 3729 /* 3730 * Return TRUE when "tpc" points to a valid tab page. 3731 */ 3732 int 3733 valid_tabpage(tabpage_T *tpc) 3734 { 3735 tabpage_T *tp; 3736 3737 FOR_ALL_TABPAGES(tp) 3738 if (tp == tpc) 3739 return TRUE; 3740 return FALSE; 3741 } 3742 3743 /* 3744 * Find tab page "n" (first one is 1). Returns NULL when not found. 3745 */ 3746 tabpage_T * 3747 find_tabpage(int n) 3748 { 3749 tabpage_T *tp; 3750 int i = 1; 3751 3752 for (tp = first_tabpage; tp != NULL && i != n; tp = tp->tp_next) 3753 ++i; 3754 return tp; 3755 } 3756 3757 /* 3758 * Get index of tab page "tp". First one has index 1. 3759 * When not found returns number of tab pages plus one. 3760 */ 3761 int 3762 tabpage_index(tabpage_T *ftp) 3763 { 3764 int i = 1; 3765 tabpage_T *tp; 3766 3767 for (tp = first_tabpage; tp != NULL && tp != ftp; tp = tp->tp_next) 3768 ++i; 3769 return i; 3770 } 3771 3772 /* 3773 * Prepare for leaving the current tab page. 3774 * When autocommands change "curtab" we don't leave the tab page and return 3775 * FAIL. 3776 * Careful: When OK is returned need to get a new tab page very very soon! 3777 */ 3778 static int 3779 leave_tabpage( 3780 buf_T *new_curbuf UNUSED, /* what is going to be the new curbuf, 3781 NULL if unknown */ 3782 int trigger_leave_autocmds UNUSED) 3783 { 3784 tabpage_T *tp = curtab; 3785 3786 reset_VIsual_and_resel(); /* stop Visual mode */ 3787 #ifdef FEAT_AUTOCMD 3788 if (trigger_leave_autocmds) 3789 { 3790 if (new_curbuf != curbuf) 3791 { 3792 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 3793 if (curtab != tp) 3794 return FAIL; 3795 } 3796 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 3797 if (curtab != tp) 3798 return FAIL; 3799 apply_autocmds(EVENT_TABLEAVE, NULL, NULL, FALSE, curbuf); 3800 if (curtab != tp) 3801 return FAIL; 3802 } 3803 #endif 3804 #if defined(FEAT_GUI) 3805 /* Remove the scrollbars. They may be added back later. */ 3806 if (gui.in_use) 3807 gui_remove_scrollbars(); 3808 #endif 3809 tp->tp_curwin = curwin; 3810 tp->tp_prevwin = prevwin; 3811 tp->tp_firstwin = firstwin; 3812 tp->tp_lastwin = lastwin; 3813 tp->tp_old_Rows = Rows; 3814 tp->tp_old_Columns = Columns; 3815 firstwin = NULL; 3816 lastwin = NULL; 3817 return OK; 3818 } 3819 3820 /* 3821 * Start using tab page "tp". 3822 * Only to be used after leave_tabpage() or freeing the current tab page. 3823 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 3824 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 3825 */ 3826 static void 3827 enter_tabpage( 3828 tabpage_T *tp, 3829 buf_T *old_curbuf UNUSED, 3830 int trigger_enter_autocmds, 3831 int trigger_leave_autocmds) 3832 { 3833 int old_off = tp->tp_firstwin->w_winrow; 3834 win_T *next_prevwin = tp->tp_prevwin; 3835 3836 curtab = tp; 3837 firstwin = tp->tp_firstwin; 3838 lastwin = tp->tp_lastwin; 3839 topframe = tp->tp_topframe; 3840 3841 /* We would like doing the TabEnter event first, but we don't have a 3842 * valid current window yet, which may break some commands. 3843 * This triggers autocommands, thus may make "tp" invalid. */ 3844 win_enter_ext(tp->tp_curwin, FALSE, TRUE, FALSE, 3845 trigger_enter_autocmds, trigger_leave_autocmds); 3846 prevwin = next_prevwin; 3847 3848 last_status(FALSE); /* status line may appear or disappear */ 3849 (void)win_comp_pos(); /* recompute w_winrow for all windows */ 3850 must_redraw = CLEAR; /* need to redraw everything */ 3851 #ifdef FEAT_DIFF 3852 diff_need_scrollbind = TRUE; 3853 #endif 3854 3855 /* The tabpage line may have appeared or disappeared, may need to resize 3856 * the frames for that. When the Vim window was resized need to update 3857 * frame sizes too. Use the stored value of p_ch, so that it can be 3858 * different for each tab page. */ 3859 p_ch = curtab->tp_ch_used; 3860 if (curtab->tp_old_Rows != Rows || (old_off != firstwin->w_winrow 3861 #ifdef FEAT_GUI_TABLINE 3862 && !gui_use_tabline() 3863 #endif 3864 )) 3865 shell_new_rows(); 3866 if (curtab->tp_old_Columns != Columns && starting == 0) 3867 shell_new_columns(); /* update window widths */ 3868 3869 #if defined(FEAT_GUI) 3870 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 3871 * scrollbars. Have to update them anyway. */ 3872 gui_may_update_scrollbars(); 3873 #endif 3874 3875 #ifdef FEAT_AUTOCMD 3876 /* Apply autocommands after updating the display, when 'rows' and 3877 * 'columns' have been set correctly. */ 3878 if (trigger_enter_autocmds) 3879 { 3880 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3881 if (old_curbuf != curbuf) 3882 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 3883 } 3884 #endif 3885 3886 redraw_all_later(CLEAR); 3887 } 3888 3889 /* 3890 * Go to tab page "n". For ":tab N" and "Ngt". 3891 * When "n" is 9999 go to the last tab page. 3892 */ 3893 void 3894 goto_tabpage(int n) 3895 { 3896 tabpage_T *tp; 3897 tabpage_T *ttp; 3898 int i; 3899 3900 if (text_locked()) 3901 { 3902 /* Not allowed when editing the command line. */ 3903 #ifdef FEAT_CMDWIN 3904 if (cmdwin_type != 0) 3905 EMSG(_(e_cmdwin)); 3906 else 3907 #endif 3908 EMSG(_(e_secure)); 3909 return; 3910 } 3911 3912 /* If there is only one it can't work. */ 3913 if (first_tabpage->tp_next == NULL) 3914 { 3915 if (n > 1) 3916 beep_flush(); 3917 return; 3918 } 3919 3920 if (n == 0) 3921 { 3922 /* No count, go to next tab page, wrap around end. */ 3923 if (curtab->tp_next == NULL) 3924 tp = first_tabpage; 3925 else 3926 tp = curtab->tp_next; 3927 } 3928 else if (n < 0) 3929 { 3930 /* "gT": go to previous tab page, wrap around end. "N gT" repeats 3931 * this N times. */ 3932 ttp = curtab; 3933 for (i = n; i < 0; ++i) 3934 { 3935 for (tp = first_tabpage; tp->tp_next != ttp && tp->tp_next != NULL; 3936 tp = tp->tp_next) 3937 ; 3938 ttp = tp; 3939 } 3940 } 3941 else if (n == 9999) 3942 { 3943 /* Go to last tab page. */ 3944 for (tp = first_tabpage; tp->tp_next != NULL; tp = tp->tp_next) 3945 ; 3946 } 3947 else 3948 { 3949 /* Go to tab page "n". */ 3950 tp = find_tabpage(n); 3951 if (tp == NULL) 3952 { 3953 beep_flush(); 3954 return; 3955 } 3956 } 3957 3958 goto_tabpage_tp(tp, TRUE, TRUE); 3959 3960 #ifdef FEAT_GUI_TABLINE 3961 if (gui_use_tabline()) 3962 gui_mch_set_curtab(tabpage_index(curtab)); 3963 #endif 3964 } 3965 3966 /* 3967 * Go to tabpage "tp". 3968 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 3969 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 3970 * Note: doesn't update the GUI tab. 3971 */ 3972 void 3973 goto_tabpage_tp( 3974 tabpage_T *tp, 3975 int trigger_enter_autocmds, 3976 int trigger_leave_autocmds) 3977 { 3978 /* Don't repeat a message in another tab page. */ 3979 set_keep_msg(NULL, 0); 3980 3981 if (tp != curtab && leave_tabpage(tp->tp_curwin->w_buffer, 3982 trigger_leave_autocmds) == OK) 3983 { 3984 if (valid_tabpage(tp)) 3985 enter_tabpage(tp, curbuf, trigger_enter_autocmds, 3986 trigger_leave_autocmds); 3987 else 3988 enter_tabpage(curtab, curbuf, trigger_enter_autocmds, 3989 trigger_leave_autocmds); 3990 } 3991 } 3992 3993 /* 3994 * Enter window "wp" in tab page "tp". 3995 * Also updates the GUI tab. 3996 */ 3997 void 3998 goto_tabpage_win(tabpage_T *tp, win_T *wp) 3999 { 4000 goto_tabpage_tp(tp, TRUE, TRUE); 4001 if (curtab == tp && win_valid(wp)) 4002 { 4003 win_enter(wp, TRUE); 4004 # ifdef FEAT_GUI_TABLINE 4005 if (gui_use_tabline()) 4006 gui_mch_set_curtab(tabpage_index(curtab)); 4007 # endif 4008 } 4009 } 4010 4011 /* 4012 * Move the current tab page to after tab page "nr". 4013 */ 4014 void 4015 tabpage_move(int nr) 4016 { 4017 int n = 1; 4018 tabpage_T *tp, *tp_dst; 4019 4020 if (first_tabpage->tp_next == NULL) 4021 return; 4022 4023 for (tp = first_tabpage; tp->tp_next != NULL && n < nr; tp = tp->tp_next) 4024 ++n; 4025 4026 if (tp == curtab || (nr > 0 && tp->tp_next != NULL 4027 && tp->tp_next == curtab)) 4028 return; 4029 4030 tp_dst = tp; 4031 4032 /* Remove the current tab page from the list of tab pages. */ 4033 if (curtab == first_tabpage) 4034 first_tabpage = curtab->tp_next; 4035 else 4036 { 4037 FOR_ALL_TABPAGES(tp) 4038 if (tp->tp_next == curtab) 4039 break; 4040 if (tp == NULL) /* "cannot happen" */ 4041 return; 4042 tp->tp_next = curtab->tp_next; 4043 } 4044 4045 /* Re-insert it at the specified position. */ 4046 if (nr <= 0) 4047 { 4048 curtab->tp_next = first_tabpage; 4049 first_tabpage = curtab; 4050 } 4051 else 4052 { 4053 curtab->tp_next = tp_dst->tp_next; 4054 tp_dst->tp_next = curtab; 4055 } 4056 4057 /* Need to redraw the tabline. Tab page contents doesn't change. */ 4058 redraw_tabline = TRUE; 4059 } 4060 4061 4062 /* 4063 * Go to another window. 4064 * When jumping to another buffer, stop Visual mode. Do this before 4065 * changing windows so we can yank the selection into the '*' register. 4066 * When jumping to another window on the same buffer, adjust its cursor 4067 * position to keep the same Visual area. 4068 */ 4069 void 4070 win_goto(win_T *wp) 4071 { 4072 #ifdef FEAT_CONCEAL 4073 win_T *owp = curwin; 4074 #endif 4075 4076 if (text_locked()) 4077 { 4078 beep_flush(); 4079 text_locked_msg(); 4080 return; 4081 } 4082 #ifdef FEAT_AUTOCMD 4083 if (curbuf_locked()) 4084 return; 4085 #endif 4086 4087 if (wp->w_buffer != curbuf) 4088 reset_VIsual_and_resel(); 4089 else if (VIsual_active) 4090 wp->w_cursor = curwin->w_cursor; 4091 4092 #ifdef FEAT_GUI 4093 need_mouse_correct = TRUE; 4094 #endif 4095 win_enter(wp, TRUE); 4096 4097 #ifdef FEAT_CONCEAL 4098 /* Conceal cursor line in previous window, unconceal in current window. */ 4099 if (win_valid(owp) && owp->w_p_cole > 0 && !msg_scrolled) 4100 update_single_line(owp, owp->w_cursor.lnum); 4101 if (curwin->w_p_cole > 0 && !msg_scrolled) 4102 need_cursor_line_redraw = TRUE; 4103 #endif 4104 } 4105 4106 #if defined(FEAT_PERL) || defined(PROTO) 4107 /* 4108 * Find window number "winnr" (counting top to bottom). 4109 */ 4110 win_T * 4111 win_find_nr(int winnr) 4112 { 4113 win_T *wp; 4114 4115 # ifdef FEAT_WINDOWS 4116 FOR_ALL_WINDOWS(wp) 4117 if (--winnr == 0) 4118 break; 4119 return wp; 4120 # else 4121 return curwin; 4122 # endif 4123 } 4124 #endif 4125 4126 #if (defined(FEAT_WINDOWS) && (defined(FEAT_PYTHON) || defined(FEAT_PYTHON3))) \ 4127 || defined(PROTO) 4128 /* 4129 * Find the tabpage for window "win". 4130 */ 4131 tabpage_T * 4132 win_find_tabpage(win_T *win) 4133 { 4134 win_T *wp; 4135 tabpage_T *tp; 4136 4137 FOR_ALL_TAB_WINDOWS(tp, wp) 4138 if (wp == win) 4139 return tp; 4140 return NULL; 4141 } 4142 #endif 4143 4144 /* 4145 * Move to window above or below "count" times. 4146 */ 4147 static void 4148 win_goto_ver( 4149 int up, /* TRUE to go to win above */ 4150 long count) 4151 { 4152 frame_T *fr; 4153 frame_T *nfr; 4154 frame_T *foundfr; 4155 4156 foundfr = curwin->w_frame; 4157 while (count--) 4158 { 4159 /* 4160 * First go upwards in the tree of frames until we find a upwards or 4161 * downwards neighbor. 4162 */ 4163 fr = foundfr; 4164 for (;;) 4165 { 4166 if (fr == topframe) 4167 goto end; 4168 if (up) 4169 nfr = fr->fr_prev; 4170 else 4171 nfr = fr->fr_next; 4172 if (fr->fr_parent->fr_layout == FR_COL && nfr != NULL) 4173 break; 4174 fr = fr->fr_parent; 4175 } 4176 4177 /* 4178 * Now go downwards to find the bottom or top frame in it. 4179 */ 4180 for (;;) 4181 { 4182 if (nfr->fr_layout == FR_LEAF) 4183 { 4184 foundfr = nfr; 4185 break; 4186 } 4187 fr = nfr->fr_child; 4188 if (nfr->fr_layout == FR_ROW) 4189 { 4190 /* Find the frame at the cursor row. */ 4191 while (fr->fr_next != NULL 4192 && frame2win(fr)->w_wincol + fr->fr_width 4193 <= curwin->w_wincol + curwin->w_wcol) 4194 fr = fr->fr_next; 4195 } 4196 if (nfr->fr_layout == FR_COL && up) 4197 while (fr->fr_next != NULL) 4198 fr = fr->fr_next; 4199 nfr = fr; 4200 } 4201 } 4202 end: 4203 if (foundfr != NULL) 4204 win_goto(foundfr->fr_win); 4205 } 4206 4207 /* 4208 * Move to left or right window. 4209 */ 4210 static void 4211 win_goto_hor( 4212 int left, /* TRUE to go to left win */ 4213 long count) 4214 { 4215 frame_T *fr; 4216 frame_T *nfr; 4217 frame_T *foundfr; 4218 4219 foundfr = curwin->w_frame; 4220 while (count--) 4221 { 4222 /* 4223 * First go upwards in the tree of frames until we find a left or 4224 * right neighbor. 4225 */ 4226 fr = foundfr; 4227 for (;;) 4228 { 4229 if (fr == topframe) 4230 goto end; 4231 if (left) 4232 nfr = fr->fr_prev; 4233 else 4234 nfr = fr->fr_next; 4235 if (fr->fr_parent->fr_layout == FR_ROW && nfr != NULL) 4236 break; 4237 fr = fr->fr_parent; 4238 } 4239 4240 /* 4241 * Now go downwards to find the leftmost or rightmost frame in it. 4242 */ 4243 for (;;) 4244 { 4245 if (nfr->fr_layout == FR_LEAF) 4246 { 4247 foundfr = nfr; 4248 break; 4249 } 4250 fr = nfr->fr_child; 4251 if (nfr->fr_layout == FR_COL) 4252 { 4253 /* Find the frame at the cursor row. */ 4254 while (fr->fr_next != NULL 4255 && frame2win(fr)->w_winrow + fr->fr_height 4256 <= curwin->w_winrow + curwin->w_wrow) 4257 fr = fr->fr_next; 4258 } 4259 if (nfr->fr_layout == FR_ROW && left) 4260 while (fr->fr_next != NULL) 4261 fr = fr->fr_next; 4262 nfr = fr; 4263 } 4264 } 4265 end: 4266 if (foundfr != NULL) 4267 win_goto(foundfr->fr_win); 4268 } 4269 4270 /* 4271 * Make window "wp" the current window. 4272 */ 4273 void 4274 win_enter(win_T *wp, int undo_sync) 4275 { 4276 win_enter_ext(wp, undo_sync, FALSE, FALSE, TRUE, TRUE); 4277 } 4278 4279 /* 4280 * Make window wp the current window. 4281 * Can be called with "curwin_invalid" TRUE, which means that curwin has just 4282 * been closed and isn't valid. 4283 */ 4284 static void 4285 win_enter_ext( 4286 win_T *wp, 4287 int undo_sync, 4288 int curwin_invalid, 4289 int trigger_new_autocmds UNUSED, 4290 int trigger_enter_autocmds UNUSED, 4291 int trigger_leave_autocmds UNUSED) 4292 { 4293 #ifdef FEAT_AUTOCMD 4294 int other_buffer = FALSE; 4295 #endif 4296 4297 if (wp == curwin && !curwin_invalid) /* nothing to do */ 4298 return; 4299 4300 #ifdef FEAT_AUTOCMD 4301 if (!curwin_invalid && trigger_leave_autocmds) 4302 { 4303 /* 4304 * Be careful: If autocommands delete the window, return now. 4305 */ 4306 if (wp->w_buffer != curbuf) 4307 { 4308 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4309 other_buffer = TRUE; 4310 if (!win_valid(wp)) 4311 return; 4312 } 4313 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4314 if (!win_valid(wp)) 4315 return; 4316 # ifdef FEAT_EVAL 4317 /* autocmds may abort script processing */ 4318 if (aborting()) 4319 return; 4320 # endif 4321 } 4322 #endif 4323 4324 /* sync undo before leaving the current buffer */ 4325 if (undo_sync && curbuf != wp->w_buffer) 4326 u_sync(FALSE); 4327 4328 /* Might need to scroll the old window before switching, e.g., when the 4329 * cursor was moved. */ 4330 update_topline(); 4331 4332 /* may have to copy the buffer options when 'cpo' contains 'S' */ 4333 if (wp->w_buffer != curbuf) 4334 buf_copy_options(wp->w_buffer, BCO_ENTER | BCO_NOHELP); 4335 if (!curwin_invalid) 4336 { 4337 prevwin = curwin; /* remember for CTRL-W p */ 4338 curwin->w_redr_status = TRUE; 4339 } 4340 curwin = wp; 4341 curbuf = wp->w_buffer; 4342 check_cursor(); 4343 #ifdef FEAT_VIRTUALEDIT 4344 if (!virtual_active()) 4345 curwin->w_cursor.coladd = 0; 4346 #endif 4347 changed_line_abv_curs(); /* assume cursor position needs updating */ 4348 4349 if (curwin->w_localdir != NULL) 4350 { 4351 /* Window has a local directory: Save current directory as global 4352 * directory (unless that was done already) and change to the local 4353 * directory. */ 4354 if (globaldir == NULL) 4355 { 4356 char_u cwd[MAXPATHL]; 4357 4358 if (mch_dirname(cwd, MAXPATHL) == OK) 4359 globaldir = vim_strsave(cwd); 4360 } 4361 if (mch_chdir((char *)curwin->w_localdir) == 0) 4362 shorten_fnames(TRUE); 4363 } 4364 else if (globaldir != NULL) 4365 { 4366 /* Window doesn't have a local directory and we are not in the global 4367 * directory: Change to the global directory. */ 4368 ignored = mch_chdir((char *)globaldir); 4369 vim_free(globaldir); 4370 globaldir = NULL; 4371 shorten_fnames(TRUE); 4372 } 4373 4374 #ifdef FEAT_AUTOCMD 4375 if (trigger_new_autocmds) 4376 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 4377 if (trigger_enter_autocmds) 4378 { 4379 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 4380 if (other_buffer) 4381 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4382 } 4383 #endif 4384 4385 #ifdef FEAT_TITLE 4386 maketitle(); 4387 #endif 4388 curwin->w_redr_status = TRUE; 4389 redraw_tabline = TRUE; 4390 if (restart_edit) 4391 redraw_later(VALID); /* causes status line redraw */ 4392 4393 /* set window height to desired minimal value */ 4394 if (curwin->w_height < p_wh && !curwin->w_p_wfh) 4395 win_setheight((int)p_wh); 4396 else if (curwin->w_height == 0) 4397 win_setheight(1); 4398 4399 /* set window width to desired minimal value */ 4400 if (curwin->w_width < p_wiw && !curwin->w_p_wfw) 4401 win_setwidth((int)p_wiw); 4402 4403 #ifdef FEAT_MOUSE 4404 setmouse(); /* in case jumped to/from help buffer */ 4405 #endif 4406 4407 /* Change directories when the 'acd' option is set. */ 4408 DO_AUTOCHDIR 4409 } 4410 4411 #endif /* FEAT_WINDOWS */ 4412 4413 #if defined(FEAT_WINDOWS) || defined(FEAT_SIGNS) || defined(PROTO) 4414 /* 4415 * Jump to the first open window that contains buffer "buf", if one exists. 4416 * Returns a pointer to the window found, otherwise NULL. 4417 */ 4418 win_T * 4419 buf_jump_open_win(buf_T *buf) 4420 { 4421 win_T *wp = NULL; 4422 4423 if (curwin->w_buffer == buf) 4424 wp = curwin; 4425 # ifdef FEAT_WINDOWS 4426 else 4427 FOR_ALL_WINDOWS(wp) 4428 if (wp->w_buffer == buf) 4429 break; 4430 if (wp != NULL) 4431 win_enter(wp, FALSE); 4432 # endif 4433 return wp; 4434 } 4435 4436 /* 4437 * Jump to the first open window in any tab page that contains buffer "buf", 4438 * if one exists. 4439 * Returns a pointer to the window found, otherwise NULL. 4440 */ 4441 win_T * 4442 buf_jump_open_tab(buf_T *buf) 4443 { 4444 win_T *wp = buf_jump_open_win(buf); 4445 # ifdef FEAT_WINDOWS 4446 tabpage_T *tp; 4447 4448 if (wp != NULL) 4449 return wp; 4450 4451 FOR_ALL_TABPAGES(tp) 4452 if (tp != curtab) 4453 { 4454 for (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next) 4455 if (wp->w_buffer == buf) 4456 break; 4457 if (wp != NULL) 4458 { 4459 goto_tabpage_win(tp, wp); 4460 if (curwin != wp) 4461 wp = NULL; /* something went wrong */ 4462 break; 4463 } 4464 } 4465 # endif 4466 return wp; 4467 } 4468 #endif 4469 4470 static int last_win_id = LOWEST_WIN_ID - 1; 4471 4472 /* 4473 * Allocate a window structure and link it in the window list when "hidden" is 4474 * FALSE. 4475 */ 4476 static win_T * 4477 win_alloc(win_T *after UNUSED, int hidden UNUSED) 4478 { 4479 win_T *new_wp; 4480 4481 /* 4482 * allocate window structure and linesizes arrays 4483 */ 4484 new_wp = (win_T *)alloc_clear((unsigned)sizeof(win_T)); 4485 if (new_wp == NULL) 4486 return NULL; 4487 4488 if (win_alloc_lines(new_wp) == FAIL) 4489 { 4490 vim_free(new_wp); 4491 return NULL; 4492 } 4493 4494 new_wp->w_id = ++last_win_id; 4495 4496 #ifdef FEAT_EVAL 4497 /* init w: variables */ 4498 new_wp->w_vars = dict_alloc(); 4499 if (new_wp->w_vars == NULL) 4500 { 4501 win_free_lsize(new_wp); 4502 vim_free(new_wp); 4503 return NULL; 4504 } 4505 init_var_dict(new_wp->w_vars, &new_wp->w_winvar, VAR_SCOPE); 4506 #endif 4507 4508 #ifdef FEAT_AUTOCMD 4509 /* Don't execute autocommands while the window is not properly 4510 * initialized yet. gui_create_scrollbar() may trigger a FocusGained 4511 * event. */ 4512 block_autocmds(); 4513 #endif 4514 /* 4515 * link the window in the window list 4516 */ 4517 #ifdef FEAT_WINDOWS 4518 if (!hidden) 4519 win_append(after, new_wp); 4520 new_wp->w_wincol = 0; 4521 new_wp->w_width = Columns; 4522 #endif 4523 4524 /* position the display and the cursor at the top of the file. */ 4525 new_wp->w_topline = 1; 4526 #ifdef FEAT_DIFF 4527 new_wp->w_topfill = 0; 4528 #endif 4529 new_wp->w_botline = 2; 4530 new_wp->w_cursor.lnum = 1; 4531 #ifdef FEAT_SCROLLBIND 4532 new_wp->w_scbind_pos = 1; 4533 #endif 4534 4535 /* We won't calculate w_fraction until resizing the window */ 4536 new_wp->w_fraction = 0; 4537 new_wp->w_prev_fraction_row = -1; 4538 4539 #ifdef FEAT_GUI 4540 if (gui.in_use) 4541 { 4542 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_LEFT], 4543 SBAR_LEFT, new_wp); 4544 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_RIGHT], 4545 SBAR_RIGHT, new_wp); 4546 } 4547 #endif 4548 #ifdef FEAT_FOLDING 4549 foldInitWin(new_wp); 4550 #endif 4551 #ifdef FEAT_AUTOCMD 4552 unblock_autocmds(); 4553 #endif 4554 #ifdef FEAT_SEARCH_EXTRA 4555 new_wp->w_match_head = NULL; 4556 new_wp->w_next_match_id = 4; 4557 #endif 4558 return new_wp; 4559 } 4560 4561 #if defined(FEAT_WINDOWS) || defined(PROTO) 4562 4563 /* 4564 * Remove window 'wp' from the window list and free the structure. 4565 */ 4566 static void 4567 win_free( 4568 win_T *wp, 4569 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 4570 { 4571 int i; 4572 buf_T *buf; 4573 wininfo_T *wip; 4574 4575 #ifdef FEAT_FOLDING 4576 clearFolding(wp); 4577 #endif 4578 4579 /* reduce the reference count to the argument list. */ 4580 alist_unlink(wp->w_alist); 4581 4582 #ifdef FEAT_AUTOCMD 4583 /* Don't execute autocommands while the window is halfway being deleted. 4584 * gui_mch_destroy_scrollbar() may trigger a FocusGained event. */ 4585 block_autocmds(); 4586 #endif 4587 4588 #ifdef FEAT_LUA 4589 lua_window_free(wp); 4590 #endif 4591 4592 #ifdef FEAT_MZSCHEME 4593 mzscheme_window_free(wp); 4594 #endif 4595 4596 #ifdef FEAT_PERL 4597 perl_win_free(wp); 4598 #endif 4599 4600 #ifdef FEAT_PYTHON 4601 python_window_free(wp); 4602 #endif 4603 4604 #ifdef FEAT_PYTHON3 4605 python3_window_free(wp); 4606 #endif 4607 4608 #ifdef FEAT_TCL 4609 tcl_window_free(wp); 4610 #endif 4611 4612 #ifdef FEAT_RUBY 4613 ruby_window_free(wp); 4614 #endif 4615 4616 clear_winopt(&wp->w_onebuf_opt); 4617 clear_winopt(&wp->w_allbuf_opt); 4618 4619 #ifdef FEAT_EVAL 4620 vars_clear(&wp->w_vars->dv_hashtab); /* free all w: variables */ 4621 hash_init(&wp->w_vars->dv_hashtab); 4622 unref_var_dict(wp->w_vars); 4623 #endif 4624 4625 { 4626 tabpage_T *ttp; 4627 4628 if (prevwin == wp) 4629 prevwin = NULL; 4630 FOR_ALL_TABPAGES(ttp) 4631 if (ttp->tp_prevwin == wp) 4632 ttp->tp_prevwin = NULL; 4633 } 4634 win_free_lsize(wp); 4635 4636 for (i = 0; i < wp->w_tagstacklen; ++i) 4637 vim_free(wp->w_tagstack[i].tagname); 4638 4639 vim_free(wp->w_localdir); 4640 4641 /* Remove the window from the b_wininfo lists, it may happen that the 4642 * freed memory is re-used for another window. */ 4643 FOR_ALL_BUFFERS(buf) 4644 for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) 4645 if (wip->wi_win == wp) 4646 wip->wi_win = NULL; 4647 4648 #ifdef FEAT_SEARCH_EXTRA 4649 clear_matches(wp); 4650 #endif 4651 4652 #ifdef FEAT_JUMPLIST 4653 free_jumplist(wp); 4654 #endif 4655 4656 #ifdef FEAT_QUICKFIX 4657 qf_free_all(wp); 4658 #endif 4659 4660 #ifdef FEAT_GUI 4661 if (gui.in_use) 4662 { 4663 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_LEFT]); 4664 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_RIGHT]); 4665 } 4666 #endif /* FEAT_GUI */ 4667 4668 #ifdef FEAT_SYN_HL 4669 vim_free(wp->w_p_cc_cols); 4670 #endif 4671 4672 #ifdef FEAT_AUTOCMD 4673 if (wp != aucmd_win) 4674 #endif 4675 win_remove(wp, tp); 4676 #ifdef FEAT_AUTOCMD 4677 if (autocmd_busy) 4678 { 4679 wp->w_next = au_pending_free_win; 4680 au_pending_free_win = wp; 4681 } 4682 else 4683 #endif 4684 vim_free(wp); 4685 4686 #ifdef FEAT_AUTOCMD 4687 unblock_autocmds(); 4688 #endif 4689 } 4690 4691 /* 4692 * Append window "wp" in the window list after window "after". 4693 */ 4694 void 4695 win_append(win_T *after, win_T *wp) 4696 { 4697 win_T *before; 4698 4699 if (after == NULL) /* after NULL is in front of the first */ 4700 before = firstwin; 4701 else 4702 before = after->w_next; 4703 4704 wp->w_next = before; 4705 wp->w_prev = after; 4706 if (after == NULL) 4707 firstwin = wp; 4708 else 4709 after->w_next = wp; 4710 if (before == NULL) 4711 lastwin = wp; 4712 else 4713 before->w_prev = wp; 4714 } 4715 4716 /* 4717 * Remove a window from the window list. 4718 */ 4719 void 4720 win_remove( 4721 win_T *wp, 4722 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 4723 { 4724 if (wp->w_prev != NULL) 4725 wp->w_prev->w_next = wp->w_next; 4726 else if (tp == NULL) 4727 firstwin = wp->w_next; 4728 else 4729 tp->tp_firstwin = wp->w_next; 4730 if (wp->w_next != NULL) 4731 wp->w_next->w_prev = wp->w_prev; 4732 else if (tp == NULL) 4733 lastwin = wp->w_prev; 4734 else 4735 tp->tp_lastwin = wp->w_prev; 4736 } 4737 4738 /* 4739 * Append frame "frp" in a frame list after frame "after". 4740 */ 4741 static void 4742 frame_append(frame_T *after, frame_T *frp) 4743 { 4744 frp->fr_next = after->fr_next; 4745 after->fr_next = frp; 4746 if (frp->fr_next != NULL) 4747 frp->fr_next->fr_prev = frp; 4748 frp->fr_prev = after; 4749 } 4750 4751 /* 4752 * Insert frame "frp" in a frame list before frame "before". 4753 */ 4754 static void 4755 frame_insert(frame_T *before, frame_T *frp) 4756 { 4757 frp->fr_next = before; 4758 frp->fr_prev = before->fr_prev; 4759 before->fr_prev = frp; 4760 if (frp->fr_prev != NULL) 4761 frp->fr_prev->fr_next = frp; 4762 else 4763 frp->fr_parent->fr_child = frp; 4764 } 4765 4766 /* 4767 * Remove a frame from a frame list. 4768 */ 4769 static void 4770 frame_remove(frame_T *frp) 4771 { 4772 if (frp->fr_prev != NULL) 4773 frp->fr_prev->fr_next = frp->fr_next; 4774 else 4775 frp->fr_parent->fr_child = frp->fr_next; 4776 if (frp->fr_next != NULL) 4777 frp->fr_next->fr_prev = frp->fr_prev; 4778 } 4779 4780 #endif /* FEAT_WINDOWS */ 4781 4782 /* 4783 * Allocate w_lines[] for window "wp". 4784 * Return FAIL for failure, OK for success. 4785 */ 4786 int 4787 win_alloc_lines(win_T *wp) 4788 { 4789 wp->w_lines_valid = 0; 4790 wp->w_lines = (wline_T *)alloc_clear((unsigned)(Rows * sizeof(wline_T))); 4791 if (wp->w_lines == NULL) 4792 return FAIL; 4793 return OK; 4794 } 4795 4796 /* 4797 * free lsize arrays for a window 4798 */ 4799 void 4800 win_free_lsize(win_T *wp) 4801 { 4802 /* TODO: why would wp be NULL here? */ 4803 if (wp != NULL) 4804 { 4805 vim_free(wp->w_lines); 4806 wp->w_lines = NULL; 4807 } 4808 } 4809 4810 /* 4811 * Called from win_new_shellsize() after Rows changed. 4812 * This only does the current tab page, others must be done when made active. 4813 */ 4814 void 4815 shell_new_rows(void) 4816 { 4817 int h = (int)ROWS_AVAIL; 4818 4819 if (firstwin == NULL) /* not initialized yet */ 4820 return; 4821 #ifdef FEAT_WINDOWS 4822 if (h < frame_minheight(topframe, NULL)) 4823 h = frame_minheight(topframe, NULL); 4824 4825 /* First try setting the heights of windows with 'winfixheight'. If 4826 * that doesn't result in the right height, forget about that option. */ 4827 frame_new_height(topframe, h, FALSE, TRUE); 4828 if (!frame_check_height(topframe, h)) 4829 frame_new_height(topframe, h, FALSE, FALSE); 4830 4831 (void)win_comp_pos(); /* recompute w_winrow and w_wincol */ 4832 #else 4833 if (h < 1) 4834 h = 1; 4835 win_new_height(firstwin, h); 4836 #endif 4837 compute_cmdrow(); 4838 #ifdef FEAT_WINDOWS 4839 curtab->tp_ch_used = p_ch; 4840 #endif 4841 4842 #if 0 4843 /* Disabled: don't want making the screen smaller make a window larger. */ 4844 if (p_ea) 4845 win_equal(curwin, FALSE, 'v'); 4846 #endif 4847 } 4848 4849 #if defined(FEAT_WINDOWS) || defined(PROTO) 4850 /* 4851 * Called from win_new_shellsize() after Columns changed. 4852 */ 4853 void 4854 shell_new_columns(void) 4855 { 4856 if (firstwin == NULL) /* not initialized yet */ 4857 return; 4858 4859 /* First try setting the widths of windows with 'winfixwidth'. If that 4860 * doesn't result in the right width, forget about that option. */ 4861 frame_new_width(topframe, (int)Columns, FALSE, TRUE); 4862 if (!frame_check_width(topframe, Columns)) 4863 frame_new_width(topframe, (int)Columns, FALSE, FALSE); 4864 4865 (void)win_comp_pos(); /* recompute w_winrow and w_wincol */ 4866 #if 0 4867 /* Disabled: don't want making the screen smaller make a window larger. */ 4868 if (p_ea) 4869 win_equal(curwin, FALSE, 'h'); 4870 #endif 4871 } 4872 #endif 4873 4874 #if defined(FEAT_CMDWIN) || defined(PROTO) 4875 /* 4876 * Save the size of all windows in "gap". 4877 */ 4878 void 4879 win_size_save(garray_T *gap) 4880 4881 { 4882 win_T *wp; 4883 4884 ga_init2(gap, (int)sizeof(int), 1); 4885 if (ga_grow(gap, win_count() * 2) == OK) 4886 FOR_ALL_WINDOWS(wp) 4887 { 4888 ((int *)gap->ga_data)[gap->ga_len++] = 4889 wp->w_width + wp->w_vsep_width; 4890 ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height; 4891 } 4892 } 4893 4894 /* 4895 * Restore window sizes, but only if the number of windows is still the same. 4896 * Does not free the growarray. 4897 */ 4898 void 4899 win_size_restore(garray_T *gap) 4900 { 4901 win_T *wp; 4902 int i, j; 4903 4904 if (win_count() * 2 == gap->ga_len) 4905 { 4906 /* The order matters, because frames contain other frames, but it's 4907 * difficult to get right. The easy way out is to do it twice. */ 4908 for (j = 0; j < 2; ++j) 4909 { 4910 i = 0; 4911 FOR_ALL_WINDOWS(wp) 4912 { 4913 frame_setwidth(wp->w_frame, ((int *)gap->ga_data)[i++]); 4914 win_setheight_win(((int *)gap->ga_data)[i++], wp); 4915 } 4916 } 4917 /* recompute the window positions */ 4918 (void)win_comp_pos(); 4919 } 4920 } 4921 #endif /* FEAT_CMDWIN */ 4922 4923 #if defined(FEAT_WINDOWS) || defined(PROTO) 4924 /* 4925 * Update the position for all windows, using the width and height of the 4926 * frames. 4927 * Returns the row just after the last window. 4928 */ 4929 int 4930 win_comp_pos(void) 4931 { 4932 int row = tabline_height(); 4933 int col = 0; 4934 4935 frame_comp_pos(topframe, &row, &col); 4936 return row; 4937 } 4938 4939 /* 4940 * Update the position of the windows in frame "topfrp", using the width and 4941 * height of the frames. 4942 * "*row" and "*col" are the top-left position of the frame. They are updated 4943 * to the bottom-right position plus one. 4944 */ 4945 static void 4946 frame_comp_pos(frame_T *topfrp, int *row, int *col) 4947 { 4948 win_T *wp; 4949 frame_T *frp; 4950 int startcol; 4951 int startrow; 4952 4953 wp = topfrp->fr_win; 4954 if (wp != NULL) 4955 { 4956 if (wp->w_winrow != *row || wp->w_wincol != *col) 4957 { 4958 /* position changed, redraw */ 4959 wp->w_winrow = *row; 4960 wp->w_wincol = *col; 4961 redraw_win_later(wp, NOT_VALID); 4962 wp->w_redr_status = TRUE; 4963 } 4964 *row += wp->w_height + wp->w_status_height; 4965 *col += wp->w_width + wp->w_vsep_width; 4966 } 4967 else 4968 { 4969 startrow = *row; 4970 startcol = *col; 4971 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 4972 { 4973 if (topfrp->fr_layout == FR_ROW) 4974 *row = startrow; /* all frames are at the same row */ 4975 else 4976 *col = startcol; /* all frames are at the same col */ 4977 frame_comp_pos(frp, row, col); 4978 } 4979 } 4980 } 4981 4982 #endif /* FEAT_WINDOWS */ 4983 4984 /* 4985 * Set current window height and take care of repositioning other windows to 4986 * fit around it. 4987 */ 4988 void 4989 win_setheight(int height) 4990 { 4991 win_setheight_win(height, curwin); 4992 } 4993 4994 /* 4995 * Set the window height of window "win" and take care of repositioning other 4996 * windows to fit around it. 4997 */ 4998 void 4999 win_setheight_win(int height, win_T *win) 5000 { 5001 int row; 5002 5003 if (win == curwin) 5004 { 5005 /* Always keep current window at least one line high, even when 5006 * 'winminheight' is zero. */ 5007 #ifdef FEAT_WINDOWS 5008 if (height < p_wmh) 5009 height = p_wmh; 5010 #endif 5011 if (height == 0) 5012 height = 1; 5013 } 5014 5015 #ifdef FEAT_WINDOWS 5016 frame_setheight(win->w_frame, height + win->w_status_height); 5017 5018 /* recompute the window positions */ 5019 row = win_comp_pos(); 5020 #else 5021 if (height > topframe->fr_height) 5022 height = topframe->fr_height; 5023 win->w_height = height; 5024 row = height; 5025 #endif 5026 5027 /* 5028 * If there is extra space created between the last window and the command 5029 * line, clear it. 5030 */ 5031 if (full_screen && msg_scrolled == 0 && row < cmdline_row) 5032 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5033 cmdline_row = row; 5034 msg_row = row; 5035 msg_col = 0; 5036 5037 redraw_all_later(NOT_VALID); 5038 } 5039 5040 #if defined(FEAT_WINDOWS) || defined(PROTO) 5041 5042 /* 5043 * Set the height of a frame to "height" and take care that all frames and 5044 * windows inside it are resized. Also resize frames on the left and right if 5045 * the are in the same FR_ROW frame. 5046 * 5047 * Strategy: 5048 * If the frame is part of a FR_COL frame, try fitting the frame in that 5049 * frame. If that doesn't work (the FR_COL frame is too small), recursively 5050 * go to containing frames to resize them and make room. 5051 * If the frame is part of a FR_ROW frame, all frames must be resized as well. 5052 * Check for the minimal height of the FR_ROW frame. 5053 * At the top level we can also use change the command line height. 5054 */ 5055 static void 5056 frame_setheight(frame_T *curfrp, int height) 5057 { 5058 int room; /* total number of lines available */ 5059 int take; /* number of lines taken from other windows */ 5060 int room_cmdline; /* lines available from cmdline */ 5061 int run; 5062 frame_T *frp; 5063 int h; 5064 int room_reserved; 5065 5066 /* If the height already is the desired value, nothing to do. */ 5067 if (curfrp->fr_height == height) 5068 return; 5069 5070 if (curfrp->fr_parent == NULL) 5071 { 5072 /* topframe: can only change the command line */ 5073 if (height > ROWS_AVAIL) 5074 height = ROWS_AVAIL; 5075 if (height > 0) 5076 frame_new_height(curfrp, height, FALSE, FALSE); 5077 } 5078 else if (curfrp->fr_parent->fr_layout == FR_ROW) 5079 { 5080 /* Row of frames: Also need to resize frames left and right of this 5081 * one. First check for the minimal height of these. */ 5082 h = frame_minheight(curfrp->fr_parent, NULL); 5083 if (height < h) 5084 height = h; 5085 frame_setheight(curfrp->fr_parent, height); 5086 } 5087 else 5088 { 5089 /* 5090 * Column of frames: try to change only frames in this column. 5091 */ 5092 /* 5093 * Do this twice: 5094 * 1: compute room available, if it's not enough try resizing the 5095 * containing frame. 5096 * 2: compute the room available and adjust the height to it. 5097 * Try not to reduce the height of a window with 'winfixheight' set. 5098 */ 5099 for (run = 1; run <= 2; ++run) 5100 { 5101 room = 0; 5102 room_reserved = 0; 5103 for (frp = curfrp->fr_parent->fr_child; frp != NULL; 5104 frp = frp->fr_next) 5105 { 5106 if (frp != curfrp 5107 && frp->fr_win != NULL 5108 && frp->fr_win->w_p_wfh) 5109 room_reserved += frp->fr_height; 5110 room += frp->fr_height; 5111 if (frp != curfrp) 5112 room -= frame_minheight(frp, NULL); 5113 } 5114 if (curfrp->fr_width != Columns) 5115 room_cmdline = 0; 5116 else 5117 { 5118 room_cmdline = Rows - p_ch - (lastwin->w_winrow 5119 + lastwin->w_height + lastwin->w_status_height); 5120 if (room_cmdline < 0) 5121 room_cmdline = 0; 5122 } 5123 5124 if (height <= room + room_cmdline) 5125 break; 5126 if (run == 2 || curfrp->fr_width == Columns) 5127 { 5128 if (height > room + room_cmdline) 5129 height = room + room_cmdline; 5130 break; 5131 } 5132 frame_setheight(curfrp->fr_parent, height 5133 + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1); 5134 } 5135 5136 /* 5137 * Compute the number of lines we will take from others frames (can be 5138 * negative!). 5139 */ 5140 take = height - curfrp->fr_height; 5141 5142 /* If there is not enough room, also reduce the height of a window 5143 * with 'winfixheight' set. */ 5144 if (height > room + room_cmdline - room_reserved) 5145 room_reserved = room + room_cmdline - height; 5146 /* If there is only a 'winfixheight' window and making the 5147 * window smaller, need to make the other window taller. */ 5148 if (take < 0 && room - curfrp->fr_height < room_reserved) 5149 room_reserved = 0; 5150 5151 if (take > 0 && room_cmdline > 0) 5152 { 5153 /* use lines from cmdline first */ 5154 if (take < room_cmdline) 5155 room_cmdline = take; 5156 take -= room_cmdline; 5157 topframe->fr_height += room_cmdline; 5158 } 5159 5160 /* 5161 * set the current frame to the new height 5162 */ 5163 frame_new_height(curfrp, height, FALSE, FALSE); 5164 5165 /* 5166 * First take lines from the frames after the current frame. If 5167 * that is not enough, takes lines from frames above the current 5168 * frame. 5169 */ 5170 for (run = 0; run < 2; ++run) 5171 { 5172 if (run == 0) 5173 frp = curfrp->fr_next; /* 1st run: start with next window */ 5174 else 5175 frp = curfrp->fr_prev; /* 2nd run: start with prev window */ 5176 while (frp != NULL && take != 0) 5177 { 5178 h = frame_minheight(frp, NULL); 5179 if (room_reserved > 0 5180 && frp->fr_win != NULL 5181 && frp->fr_win->w_p_wfh) 5182 { 5183 if (room_reserved >= frp->fr_height) 5184 room_reserved -= frp->fr_height; 5185 else 5186 { 5187 if (frp->fr_height - room_reserved > take) 5188 room_reserved = frp->fr_height - take; 5189 take -= frp->fr_height - room_reserved; 5190 frame_new_height(frp, room_reserved, FALSE, FALSE); 5191 room_reserved = 0; 5192 } 5193 } 5194 else 5195 { 5196 if (frp->fr_height - take < h) 5197 { 5198 take -= frp->fr_height - h; 5199 frame_new_height(frp, h, FALSE, FALSE); 5200 } 5201 else 5202 { 5203 frame_new_height(frp, frp->fr_height - take, 5204 FALSE, FALSE); 5205 take = 0; 5206 } 5207 } 5208 if (run == 0) 5209 frp = frp->fr_next; 5210 else 5211 frp = frp->fr_prev; 5212 } 5213 } 5214 } 5215 } 5216 5217 /* 5218 * Set current window width and take care of repositioning other windows to 5219 * fit around it. 5220 */ 5221 void 5222 win_setwidth(int width) 5223 { 5224 win_setwidth_win(width, curwin); 5225 } 5226 5227 void 5228 win_setwidth_win(int width, win_T *wp) 5229 { 5230 /* Always keep current window at least one column wide, even when 5231 * 'winminwidth' is zero. */ 5232 if (wp == curwin) 5233 { 5234 if (width < p_wmw) 5235 width = p_wmw; 5236 if (width == 0) 5237 width = 1; 5238 } 5239 5240 frame_setwidth(wp->w_frame, width + wp->w_vsep_width); 5241 5242 /* recompute the window positions */ 5243 (void)win_comp_pos(); 5244 5245 redraw_all_later(NOT_VALID); 5246 } 5247 5248 /* 5249 * Set the width of a frame to "width" and take care that all frames and 5250 * windows inside it are resized. Also resize frames above and below if the 5251 * are in the same FR_ROW frame. 5252 * 5253 * Strategy is similar to frame_setheight(). 5254 */ 5255 static void 5256 frame_setwidth(frame_T *curfrp, int width) 5257 { 5258 int room; /* total number of lines available */ 5259 int take; /* number of lines taken from other windows */ 5260 int run; 5261 frame_T *frp; 5262 int w; 5263 int room_reserved; 5264 5265 /* If the width already is the desired value, nothing to do. */ 5266 if (curfrp->fr_width == width) 5267 return; 5268 5269 if (curfrp->fr_parent == NULL) 5270 /* topframe: can't change width */ 5271 return; 5272 5273 if (curfrp->fr_parent->fr_layout == FR_COL) 5274 { 5275 /* Column of frames: Also need to resize frames above and below of 5276 * this one. First check for the minimal width of these. */ 5277 w = frame_minwidth(curfrp->fr_parent, NULL); 5278 if (width < w) 5279 width = w; 5280 frame_setwidth(curfrp->fr_parent, width); 5281 } 5282 else 5283 { 5284 /* 5285 * Row of frames: try to change only frames in this row. 5286 * 5287 * Do this twice: 5288 * 1: compute room available, if it's not enough try resizing the 5289 * containing frame. 5290 * 2: compute the room available and adjust the width to it. 5291 */ 5292 for (run = 1; run <= 2; ++run) 5293 { 5294 room = 0; 5295 room_reserved = 0; 5296 for (frp = curfrp->fr_parent->fr_child; frp != NULL; 5297 frp = frp->fr_next) 5298 { 5299 if (frp != curfrp 5300 && frp->fr_win != NULL 5301 && frp->fr_win->w_p_wfw) 5302 room_reserved += frp->fr_width; 5303 room += frp->fr_width; 5304 if (frp != curfrp) 5305 room -= frame_minwidth(frp, NULL); 5306 } 5307 5308 if (width <= room) 5309 break; 5310 if (run == 2 || curfrp->fr_height >= ROWS_AVAIL) 5311 { 5312 if (width > room) 5313 width = room; 5314 break; 5315 } 5316 frame_setwidth(curfrp->fr_parent, width 5317 + frame_minwidth(curfrp->fr_parent, NOWIN) - (int)p_wmw - 1); 5318 } 5319 5320 /* 5321 * Compute the number of lines we will take from others frames (can be 5322 * negative!). 5323 */ 5324 take = width - curfrp->fr_width; 5325 5326 /* If there is not enough room, also reduce the width of a window 5327 * with 'winfixwidth' set. */ 5328 if (width > room - room_reserved) 5329 room_reserved = room - width; 5330 /* If there is only a 'winfixwidth' window and making the 5331 * window smaller, need to make the other window narrower. */ 5332 if (take < 0 && room - curfrp->fr_width < room_reserved) 5333 room_reserved = 0; 5334 5335 /* 5336 * set the current frame to the new width 5337 */ 5338 frame_new_width(curfrp, width, FALSE, FALSE); 5339 5340 /* 5341 * First take lines from the frames right of the current frame. If 5342 * that is not enough, takes lines from frames left of the current 5343 * frame. 5344 */ 5345 for (run = 0; run < 2; ++run) 5346 { 5347 if (run == 0) 5348 frp = curfrp->fr_next; /* 1st run: start with next window */ 5349 else 5350 frp = curfrp->fr_prev; /* 2nd run: start with prev window */ 5351 while (frp != NULL && take != 0) 5352 { 5353 w = frame_minwidth(frp, NULL); 5354 if (room_reserved > 0 5355 && frp->fr_win != NULL 5356 && frp->fr_win->w_p_wfw) 5357 { 5358 if (room_reserved >= frp->fr_width) 5359 room_reserved -= frp->fr_width; 5360 else 5361 { 5362 if (frp->fr_width - room_reserved > take) 5363 room_reserved = frp->fr_width - take; 5364 take -= frp->fr_width - room_reserved; 5365 frame_new_width(frp, room_reserved, FALSE, FALSE); 5366 room_reserved = 0; 5367 } 5368 } 5369 else 5370 { 5371 if (frp->fr_width - take < w) 5372 { 5373 take -= frp->fr_width - w; 5374 frame_new_width(frp, w, FALSE, FALSE); 5375 } 5376 else 5377 { 5378 frame_new_width(frp, frp->fr_width - take, 5379 FALSE, FALSE); 5380 take = 0; 5381 } 5382 } 5383 if (run == 0) 5384 frp = frp->fr_next; 5385 else 5386 frp = frp->fr_prev; 5387 } 5388 } 5389 } 5390 } 5391 5392 /* 5393 * Check 'winminheight' for a valid value. 5394 */ 5395 void 5396 win_setminheight(void) 5397 { 5398 int room; 5399 int first = TRUE; 5400 win_T *wp; 5401 5402 /* loop until there is a 'winminheight' that is possible */ 5403 while (p_wmh > 0) 5404 { 5405 /* TODO: handle vertical splits */ 5406 room = -p_wh; 5407 FOR_ALL_WINDOWS(wp) 5408 room += wp->w_height - p_wmh; 5409 if (room >= 0) 5410 break; 5411 --p_wmh; 5412 if (first) 5413 { 5414 EMSG(_(e_noroom)); 5415 first = FALSE; 5416 } 5417 } 5418 } 5419 5420 #if defined(FEAT_MOUSE) || defined(PROTO) 5421 5422 /* 5423 * Status line of dragwin is dragged "offset" lines down (negative is up). 5424 */ 5425 void 5426 win_drag_status_line(win_T *dragwin, int offset) 5427 { 5428 frame_T *curfr; 5429 frame_T *fr; 5430 int room; 5431 int row; 5432 int up; /* if TRUE, drag status line up, otherwise down */ 5433 int n; 5434 5435 fr = dragwin->w_frame; 5436 curfr = fr; 5437 if (fr != topframe) /* more than one window */ 5438 { 5439 fr = fr->fr_parent; 5440 /* When the parent frame is not a column of frames, its parent should 5441 * be. */ 5442 if (fr->fr_layout != FR_COL) 5443 { 5444 curfr = fr; 5445 if (fr != topframe) /* only a row of windows, may drag statusline */ 5446 fr = fr->fr_parent; 5447 } 5448 } 5449 5450 /* If this is the last frame in a column, may want to resize the parent 5451 * frame instead (go two up to skip a row of frames). */ 5452 while (curfr != topframe && curfr->fr_next == NULL) 5453 { 5454 if (fr != topframe) 5455 fr = fr->fr_parent; 5456 curfr = fr; 5457 if (fr != topframe) 5458 fr = fr->fr_parent; 5459 } 5460 5461 if (offset < 0) /* drag up */ 5462 { 5463 up = TRUE; 5464 offset = -offset; 5465 /* sum up the room of the current frame and above it */ 5466 if (fr == curfr) 5467 { 5468 /* only one window */ 5469 room = fr->fr_height - frame_minheight(fr, NULL); 5470 } 5471 else 5472 { 5473 room = 0; 5474 for (fr = fr->fr_child; ; fr = fr->fr_next) 5475 { 5476 room += fr->fr_height - frame_minheight(fr, NULL); 5477 if (fr == curfr) 5478 break; 5479 } 5480 } 5481 fr = curfr->fr_next; /* put fr at frame that grows */ 5482 } 5483 else /* drag down */ 5484 { 5485 up = FALSE; 5486 /* 5487 * Only dragging the last status line can reduce p_ch. 5488 */ 5489 room = Rows - cmdline_row; 5490 if (curfr->fr_next == NULL) 5491 room -= 1; 5492 else 5493 room -= p_ch; 5494 if (room < 0) 5495 room = 0; 5496 /* sum up the room of frames below of the current one */ 5497 for (fr = curfr->fr_next; fr != NULL; fr = fr->fr_next) 5498 room += fr->fr_height - frame_minheight(fr, NULL); 5499 fr = curfr; /* put fr at window that grows */ 5500 } 5501 5502 if (room < offset) /* Not enough room */ 5503 offset = room; /* Move as far as we can */ 5504 if (offset <= 0) 5505 return; 5506 5507 /* 5508 * Grow frame fr by "offset" lines. 5509 * Doesn't happen when dragging the last status line up. 5510 */ 5511 if (fr != NULL) 5512 frame_new_height(fr, fr->fr_height + offset, up, FALSE); 5513 5514 if (up) 5515 fr = curfr; /* current frame gets smaller */ 5516 else 5517 fr = curfr->fr_next; /* next frame gets smaller */ 5518 5519 /* 5520 * Now make the other frames smaller. 5521 */ 5522 while (fr != NULL && offset > 0) 5523 { 5524 n = frame_minheight(fr, NULL); 5525 if (fr->fr_height - offset <= n) 5526 { 5527 offset -= fr->fr_height - n; 5528 frame_new_height(fr, n, !up, FALSE); 5529 } 5530 else 5531 { 5532 frame_new_height(fr, fr->fr_height - offset, !up, FALSE); 5533 break; 5534 } 5535 if (up) 5536 fr = fr->fr_prev; 5537 else 5538 fr = fr->fr_next; 5539 } 5540 row = win_comp_pos(); 5541 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5542 cmdline_row = row; 5543 p_ch = Rows - cmdline_row; 5544 if (p_ch < 1) 5545 p_ch = 1; 5546 curtab->tp_ch_used = p_ch; 5547 redraw_all_later(SOME_VALID); 5548 showmode(); 5549 } 5550 5551 /* 5552 * Separator line of dragwin is dragged "offset" lines right (negative is left). 5553 */ 5554 void 5555 win_drag_vsep_line(win_T *dragwin, int offset) 5556 { 5557 frame_T *curfr; 5558 frame_T *fr; 5559 int room; 5560 int left; /* if TRUE, drag separator line left, otherwise right */ 5561 int n; 5562 5563 fr = dragwin->w_frame; 5564 if (fr == topframe) /* only one window (cannot happen?) */ 5565 return; 5566 curfr = fr; 5567 fr = fr->fr_parent; 5568 /* When the parent frame is not a row of frames, its parent should be. */ 5569 if (fr->fr_layout != FR_ROW) 5570 { 5571 if (fr == topframe) /* only a column of windows (cannot happen?) */ 5572 return; 5573 curfr = fr; 5574 fr = fr->fr_parent; 5575 } 5576 5577 /* If this is the last frame in a row, may want to resize a parent 5578 * frame instead. */ 5579 while (curfr->fr_next == NULL) 5580 { 5581 if (fr == topframe) 5582 break; 5583 curfr = fr; 5584 fr = fr->fr_parent; 5585 if (fr != topframe) 5586 { 5587 curfr = fr; 5588 fr = fr->fr_parent; 5589 } 5590 } 5591 5592 if (offset < 0) /* drag left */ 5593 { 5594 left = TRUE; 5595 offset = -offset; 5596 /* sum up the room of the current frame and left of it */ 5597 room = 0; 5598 for (fr = fr->fr_child; ; fr = fr->fr_next) 5599 { 5600 room += fr->fr_width - frame_minwidth(fr, NULL); 5601 if (fr == curfr) 5602 break; 5603 } 5604 fr = curfr->fr_next; /* put fr at frame that grows */ 5605 } 5606 else /* drag right */ 5607 { 5608 left = FALSE; 5609 /* sum up the room of frames right of the current one */ 5610 room = 0; 5611 for (fr = curfr->fr_next; fr != NULL; fr = fr->fr_next) 5612 room += fr->fr_width - frame_minwidth(fr, NULL); 5613 fr = curfr; /* put fr at window that grows */ 5614 } 5615 5616 if (room < offset) /* Not enough room */ 5617 offset = room; /* Move as far as we can */ 5618 if (offset <= 0) /* No room at all, quit. */ 5619 return; 5620 if (fr == NULL) 5621 return; /* Safety check, should not happen. */ 5622 5623 /* grow frame fr by offset lines */ 5624 frame_new_width(fr, fr->fr_width + offset, left, FALSE); 5625 5626 /* shrink other frames: current and at the left or at the right */ 5627 if (left) 5628 fr = curfr; /* current frame gets smaller */ 5629 else 5630 fr = curfr->fr_next; /* next frame gets smaller */ 5631 5632 while (fr != NULL && offset > 0) 5633 { 5634 n = frame_minwidth(fr, NULL); 5635 if (fr->fr_width - offset <= n) 5636 { 5637 offset -= fr->fr_width - n; 5638 frame_new_width(fr, n, !left, FALSE); 5639 } 5640 else 5641 { 5642 frame_new_width(fr, fr->fr_width - offset, !left, FALSE); 5643 break; 5644 } 5645 if (left) 5646 fr = fr->fr_prev; 5647 else 5648 fr = fr->fr_next; 5649 } 5650 (void)win_comp_pos(); 5651 redraw_all_later(NOT_VALID); 5652 } 5653 #endif /* FEAT_MOUSE */ 5654 5655 #endif /* FEAT_WINDOWS */ 5656 5657 #define FRACTION_MULT 16384L 5658 5659 /* 5660 * Set wp->w_fraction for the current w_wrow and w_height. 5661 */ 5662 void 5663 set_fraction(win_T *wp) 5664 { 5665 wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT 5666 + wp->w_height / 2) / (long)wp->w_height; 5667 } 5668 5669 /* 5670 * Set the height of a window. 5671 * This takes care of the things inside the window, not what happens to the 5672 * window position, the frame or to other windows. 5673 */ 5674 void 5675 win_new_height(win_T *wp, int height) 5676 { 5677 linenr_T lnum; 5678 int sline, line_size; 5679 int prev_height = wp->w_height; 5680 5681 /* Don't want a negative height. Happens when splitting a tiny window. 5682 * Will equalize heights soon to fix it. */ 5683 if (height < 0) 5684 height = 0; 5685 if (wp->w_height == height) 5686 return; /* nothing to do */ 5687 5688 if (wp->w_height > 0) 5689 { 5690 if (wp == curwin) 5691 /* w_wrow needs to be valid. When setting 'laststatus' this may 5692 * call win_new_height() recursively. */ 5693 validate_cursor(); 5694 if (wp->w_height != prev_height) 5695 return; /* Recursive call already changed the size, bail out here 5696 to avoid the following to mess things up. */ 5697 if (wp->w_wrow != wp->w_prev_fraction_row) 5698 set_fraction(wp); 5699 } 5700 5701 wp->w_height = height; 5702 wp->w_skipcol = 0; 5703 5704 /* Don't change w_topline when height is zero. Don't set w_topline when 5705 * 'scrollbind' is set and this isn't the current window. */ 5706 if (height > 0 5707 #ifdef FEAT_SCROLLBIND 5708 && (!wp->w_p_scb || wp == curwin) 5709 #endif 5710 ) 5711 { 5712 /* 5713 * Find a value for w_topline that shows the cursor at the same 5714 * relative position in the window as before (more or less). 5715 */ 5716 lnum = wp->w_cursor.lnum; 5717 if (lnum < 1) /* can happen when starting up */ 5718 lnum = 1; 5719 wp->w_wrow = ((long)wp->w_fraction * (long)height - 1L 5720 + FRACTION_MULT / 2) / FRACTION_MULT; 5721 line_size = plines_win_col(wp, lnum, (long)(wp->w_cursor.col)) - 1; 5722 sline = wp->w_wrow - line_size; 5723 5724 if (sline >= 0) 5725 { 5726 /* Make sure the whole cursor line is visible, if possible. */ 5727 int rows = plines_win(wp, lnum, FALSE); 5728 5729 if (sline > wp->w_height - rows) 5730 { 5731 sline = wp->w_height - rows; 5732 wp->w_wrow -= rows - line_size; 5733 } 5734 } 5735 5736 if (sline < 0) 5737 { 5738 /* 5739 * Cursor line would go off top of screen if w_wrow was this high. 5740 * Make cursor line the first line in the window. If not enough 5741 * room use w_skipcol; 5742 */ 5743 wp->w_wrow = line_size; 5744 if (wp->w_wrow >= wp->w_height 5745 && (W_WIDTH(wp) - win_col_off(wp)) > 0) 5746 { 5747 wp->w_skipcol += W_WIDTH(wp) - win_col_off(wp); 5748 --wp->w_wrow; 5749 while (wp->w_wrow >= wp->w_height) 5750 { 5751 wp->w_skipcol += W_WIDTH(wp) - win_col_off(wp) 5752 + win_col_off2(wp); 5753 --wp->w_wrow; 5754 } 5755 } 5756 set_topline(wp, lnum); 5757 } 5758 else if (sline > 0) 5759 { 5760 while (sline > 0 && lnum > 1) 5761 { 5762 #ifdef FEAT_FOLDING 5763 hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); 5764 if (lnum == 1) 5765 { 5766 /* first line in buffer is folded */ 5767 line_size = 1; 5768 --sline; 5769 break; 5770 } 5771 #endif 5772 --lnum; 5773 #ifdef FEAT_DIFF 5774 if (lnum == wp->w_topline) 5775 line_size = plines_win_nofill(wp, lnum, TRUE) 5776 + wp->w_topfill; 5777 else 5778 #endif 5779 line_size = plines_win(wp, lnum, TRUE); 5780 sline -= line_size; 5781 } 5782 5783 if (sline < 0) 5784 { 5785 /* 5786 * Line we want at top would go off top of screen. Use next 5787 * line instead. 5788 */ 5789 #ifdef FEAT_FOLDING 5790 hasFoldingWin(wp, lnum, NULL, &lnum, TRUE, NULL); 5791 #endif 5792 lnum++; 5793 wp->w_wrow -= line_size + sline; 5794 } 5795 else if (sline > 0) 5796 { 5797 /* First line of file reached, use that as topline. */ 5798 lnum = 1; 5799 wp->w_wrow -= sline; 5800 } 5801 5802 set_topline(wp, lnum); 5803 } 5804 } 5805 5806 if (wp == curwin) 5807 { 5808 if (p_so) 5809 update_topline(); 5810 curs_columns(FALSE); /* validate w_wrow */ 5811 } 5812 if (prev_height > 0) 5813 wp->w_prev_fraction_row = wp->w_wrow; 5814 5815 win_comp_scroll(wp); 5816 redraw_win_later(wp, SOME_VALID); 5817 #ifdef FEAT_WINDOWS 5818 wp->w_redr_status = TRUE; 5819 #endif 5820 invalidate_botline_win(wp); 5821 } 5822 5823 #ifdef FEAT_WINDOWS 5824 /* 5825 * Set the width of a window. 5826 */ 5827 void 5828 win_new_width(win_T *wp, int width) 5829 { 5830 wp->w_width = width; 5831 wp->w_lines_valid = 0; 5832 changed_line_abv_curs_win(wp); 5833 invalidate_botline_win(wp); 5834 if (wp == curwin) 5835 { 5836 update_topline(); 5837 curs_columns(TRUE); /* validate w_wrow */ 5838 } 5839 redraw_win_later(wp, NOT_VALID); 5840 wp->w_redr_status = TRUE; 5841 } 5842 #endif 5843 5844 void 5845 win_comp_scroll(win_T *wp) 5846 { 5847 wp->w_p_scr = ((unsigned)wp->w_height >> 1); 5848 if (wp->w_p_scr == 0) 5849 wp->w_p_scr = 1; 5850 } 5851 5852 /* 5853 * command_height: called whenever p_ch has been changed 5854 */ 5855 void 5856 command_height(void) 5857 { 5858 #ifdef FEAT_WINDOWS 5859 int h; 5860 frame_T *frp; 5861 int old_p_ch = curtab->tp_ch_used; 5862 5863 /* Use the value of p_ch that we remembered. This is needed for when the 5864 * GUI starts up, we can't be sure in what order things happen. And when 5865 * p_ch was changed in another tab page. */ 5866 curtab->tp_ch_used = p_ch; 5867 5868 /* Find bottom frame with width of screen. */ 5869 frp = lastwin->w_frame; 5870 while (frp->fr_width != Columns && frp->fr_parent != NULL) 5871 frp = frp->fr_parent; 5872 5873 /* Avoid changing the height of a window with 'winfixheight' set. */ 5874 while (frp->fr_prev != NULL && frp->fr_layout == FR_LEAF 5875 && frp->fr_win->w_p_wfh) 5876 frp = frp->fr_prev; 5877 5878 if (starting != NO_SCREEN) 5879 { 5880 cmdline_row = Rows - p_ch; 5881 5882 if (p_ch > old_p_ch) /* p_ch got bigger */ 5883 { 5884 while (p_ch > old_p_ch) 5885 { 5886 if (frp == NULL) 5887 { 5888 EMSG(_(e_noroom)); 5889 p_ch = old_p_ch; 5890 curtab->tp_ch_used = p_ch; 5891 cmdline_row = Rows - p_ch; 5892 break; 5893 } 5894 h = frp->fr_height - frame_minheight(frp, NULL); 5895 if (h > p_ch - old_p_ch) 5896 h = p_ch - old_p_ch; 5897 old_p_ch += h; 5898 frame_add_height(frp, -h); 5899 frp = frp->fr_prev; 5900 } 5901 5902 /* Recompute window positions. */ 5903 (void)win_comp_pos(); 5904 5905 /* clear the lines added to cmdline */ 5906 if (full_screen) 5907 screen_fill((int)(cmdline_row), (int)Rows, 0, 5908 (int)Columns, ' ', ' ', 0); 5909 msg_row = cmdline_row; 5910 redraw_cmdline = TRUE; 5911 return; 5912 } 5913 5914 if (msg_row < cmdline_row) 5915 msg_row = cmdline_row; 5916 redraw_cmdline = TRUE; 5917 } 5918 frame_add_height(frp, (int)(old_p_ch - p_ch)); 5919 5920 /* Recompute window positions. */ 5921 if (frp != lastwin->w_frame) 5922 (void)win_comp_pos(); 5923 #else 5924 cmdline_row = Rows - p_ch; 5925 win_setheight(cmdline_row); 5926 #endif 5927 } 5928 5929 #if defined(FEAT_WINDOWS) || defined(PROTO) 5930 /* 5931 * Resize frame "frp" to be "n" lines higher (negative for less high). 5932 * Also resize the frames it is contained in. 5933 */ 5934 static void 5935 frame_add_height(frame_T *frp, int n) 5936 { 5937 frame_new_height(frp, frp->fr_height + n, FALSE, FALSE); 5938 for (;;) 5939 { 5940 frp = frp->fr_parent; 5941 if (frp == NULL) 5942 break; 5943 frp->fr_height += n; 5944 } 5945 } 5946 5947 /* 5948 * Add or remove a status line for the bottom window(s), according to the 5949 * value of 'laststatus'. 5950 */ 5951 void 5952 last_status( 5953 int morewin) /* pretend there are two or more windows */ 5954 { 5955 /* Don't make a difference between horizontal or vertical split. */ 5956 last_status_rec(topframe, (p_ls == 2 5957 || (p_ls == 1 && (morewin || lastwin != firstwin)))); 5958 } 5959 5960 static void 5961 last_status_rec(frame_T *fr, int statusline) 5962 { 5963 frame_T *fp; 5964 win_T *wp; 5965 5966 if (fr->fr_layout == FR_LEAF) 5967 { 5968 wp = fr->fr_win; 5969 if (wp->w_status_height != 0 && !statusline) 5970 { 5971 /* remove status line */ 5972 win_new_height(wp, wp->w_height + 1); 5973 wp->w_status_height = 0; 5974 comp_col(); 5975 } 5976 else if (wp->w_status_height == 0 && statusline) 5977 { 5978 /* Find a frame to take a line from. */ 5979 fp = fr; 5980 while (fp->fr_height <= frame_minheight(fp, NULL)) 5981 { 5982 if (fp == topframe) 5983 { 5984 EMSG(_(e_noroom)); 5985 return; 5986 } 5987 /* In a column of frames: go to frame above. If already at 5988 * the top or in a row of frames: go to parent. */ 5989 if (fp->fr_parent->fr_layout == FR_COL && fp->fr_prev != NULL) 5990 fp = fp->fr_prev; 5991 else 5992 fp = fp->fr_parent; 5993 } 5994 wp->w_status_height = 1; 5995 if (fp != fr) 5996 { 5997 frame_new_height(fp, fp->fr_height - 1, FALSE, FALSE); 5998 frame_fix_height(wp); 5999 (void)win_comp_pos(); 6000 } 6001 else 6002 win_new_height(wp, wp->w_height - 1); 6003 comp_col(); 6004 redraw_all_later(SOME_VALID); 6005 } 6006 } 6007 else if (fr->fr_layout == FR_ROW) 6008 { 6009 /* vertically split windows, set status line for each one */ 6010 for (fp = fr->fr_child; fp != NULL; fp = fp->fr_next) 6011 last_status_rec(fp, statusline); 6012 } 6013 else 6014 { 6015 /* horizontally split window, set status line for last one */ 6016 for (fp = fr->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 6017 ; 6018 last_status_rec(fp, statusline); 6019 } 6020 } 6021 6022 /* 6023 * Return the number of lines used by the tab page line. 6024 */ 6025 int 6026 tabline_height(void) 6027 { 6028 #ifdef FEAT_GUI_TABLINE 6029 /* When the GUI has the tabline then this always returns zero. */ 6030 if (gui_use_tabline()) 6031 return 0; 6032 #endif 6033 switch (p_stal) 6034 { 6035 case 0: return 0; 6036 case 1: return (first_tabpage->tp_next == NULL) ? 0 : 1; 6037 } 6038 return 1; 6039 } 6040 6041 #endif /* FEAT_WINDOWS */ 6042 6043 #if defined(FEAT_SEARCHPATH) || defined(PROTO) 6044 /* 6045 * Get the file name at the cursor. 6046 * If Visual mode is active, use the selected text if it's in one line. 6047 * Returns the name in allocated memory, NULL for failure. 6048 */ 6049 char_u * 6050 grab_file_name(long count, linenr_T *file_lnum) 6051 { 6052 int options = FNAME_MESS|FNAME_EXP|FNAME_REL|FNAME_UNESC; 6053 6054 if (VIsual_active) 6055 { 6056 int len; 6057 char_u *ptr; 6058 6059 if (get_visual_text(NULL, &ptr, &len) == FAIL) 6060 return NULL; 6061 return find_file_name_in_path(ptr, len, options, 6062 count, curbuf->b_ffname); 6063 } 6064 return file_name_at_cursor(options | FNAME_HYP, count, file_lnum); 6065 6066 } 6067 6068 /* 6069 * Return the file name under or after the cursor. 6070 * 6071 * The 'path' option is searched if the file name is not absolute. 6072 * The string returned has been alloc'ed and should be freed by the caller. 6073 * NULL is returned if the file name or file is not found. 6074 * 6075 * options: 6076 * FNAME_MESS give error messages 6077 * FNAME_EXP expand to path 6078 * FNAME_HYP check for hypertext link 6079 * FNAME_INCL apply "includeexpr" 6080 */ 6081 char_u * 6082 file_name_at_cursor(int options, long count, linenr_T *file_lnum) 6083 { 6084 return file_name_in_line(ml_get_curline(), 6085 curwin->w_cursor.col, options, count, curbuf->b_ffname, 6086 file_lnum); 6087 } 6088 6089 /* 6090 * Return the name of the file under or after ptr[col]. 6091 * Otherwise like file_name_at_cursor(). 6092 */ 6093 char_u * 6094 file_name_in_line( 6095 char_u *line, 6096 int col, 6097 int options, 6098 long count, 6099 char_u *rel_fname, /* file we are searching relative to */ 6100 linenr_T *file_lnum) /* line number after the file name */ 6101 { 6102 char_u *ptr; 6103 int len; 6104 6105 /* 6106 * search forward for what could be the start of a file name 6107 */ 6108 ptr = line + col; 6109 while (*ptr != NUL && !vim_isfilec(*ptr)) 6110 mb_ptr_adv(ptr); 6111 if (*ptr == NUL) /* nothing found */ 6112 { 6113 if (options & FNAME_MESS) 6114 EMSG(_("E446: No file name under cursor")); 6115 return NULL; 6116 } 6117 6118 /* 6119 * Search backward for first char of the file name. 6120 * Go one char back to ":" before "//" even when ':' is not in 'isfname'. 6121 */ 6122 while (ptr > line) 6123 { 6124 #ifdef FEAT_MBYTE 6125 if (has_mbyte && (len = (*mb_head_off)(line, ptr - 1)) > 0) 6126 ptr -= len + 1; 6127 else 6128 #endif 6129 if (vim_isfilec(ptr[-1]) 6130 || ((options & FNAME_HYP) && path_is_url(ptr - 1))) 6131 --ptr; 6132 else 6133 break; 6134 } 6135 6136 /* 6137 * Search forward for the last char of the file name. 6138 * Also allow "://" when ':' is not in 'isfname'. 6139 */ 6140 len = 0; 6141 while (vim_isfilec(ptr[len]) || (ptr[len] == '\\' && ptr[len + 1] == ' ') 6142 || ((options & FNAME_HYP) && path_is_url(ptr + len))) 6143 { 6144 if (ptr[len] == '\\') 6145 /* Skip over the "\" in "\ ". */ 6146 ++len; 6147 #ifdef FEAT_MBYTE 6148 if (has_mbyte) 6149 len += (*mb_ptr2len)(ptr + len); 6150 else 6151 #endif 6152 ++len; 6153 } 6154 6155 /* 6156 * If there is trailing punctuation, remove it. 6157 * But don't remove "..", could be a directory name. 6158 */ 6159 if (len > 2 && vim_strchr((char_u *)".,:;!", ptr[len - 1]) != NULL 6160 && ptr[len - 2] != '.') 6161 --len; 6162 6163 if (file_lnum != NULL) 6164 { 6165 char_u *p; 6166 6167 /* Get the number after the file name and a separator character */ 6168 p = ptr + len; 6169 p = skipwhite(p); 6170 if (*p != NUL) 6171 { 6172 if (!isdigit(*p)) 6173 ++p; /* skip the separator */ 6174 p = skipwhite(p); 6175 if (isdigit(*p)) 6176 *file_lnum = (int)getdigits(&p); 6177 } 6178 } 6179 6180 return find_file_name_in_path(ptr, len, options, count, rel_fname); 6181 } 6182 6183 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6184 static char_u *eval_includeexpr(char_u *ptr, int len); 6185 6186 static char_u * 6187 eval_includeexpr(char_u *ptr, int len) 6188 { 6189 char_u *res; 6190 6191 set_vim_var_string(VV_FNAME, ptr, len); 6192 res = eval_to_string_safe(curbuf->b_p_inex, NULL, 6193 was_set_insecurely((char_u *)"includeexpr", OPT_LOCAL)); 6194 set_vim_var_string(VV_FNAME, NULL, 0); 6195 return res; 6196 } 6197 #endif 6198 6199 /* 6200 * Return the name of the file ptr[len] in 'path'. 6201 * Otherwise like file_name_at_cursor(). 6202 */ 6203 char_u * 6204 find_file_name_in_path( 6205 char_u *ptr, 6206 int len, 6207 int options, 6208 long count, 6209 char_u *rel_fname) /* file we are searching relative to */ 6210 { 6211 char_u *file_name; 6212 int c; 6213 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6214 char_u *tofree = NULL; 6215 6216 if ((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 } 6224 } 6225 # endif 6226 6227 if (options & FNAME_EXP) 6228 { 6229 file_name = find_file_in_path(ptr, len, options & ~FNAME_MESS, 6230 TRUE, rel_fname); 6231 6232 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6233 /* 6234 * If the file could not be found in a normal way, try applying 6235 * 'includeexpr' (unless done already). 6236 */ 6237 if (file_name == NULL 6238 && !(options & FNAME_INCL) && *curbuf->b_p_inex != NUL) 6239 { 6240 tofree = eval_includeexpr(ptr, len); 6241 if (tofree != NULL) 6242 { 6243 ptr = tofree; 6244 len = (int)STRLEN(ptr); 6245 file_name = find_file_in_path(ptr, len, options & ~FNAME_MESS, 6246 TRUE, rel_fname); 6247 } 6248 } 6249 # endif 6250 if (file_name == NULL && (options & FNAME_MESS)) 6251 { 6252 c = ptr[len]; 6253 ptr[len] = NUL; 6254 EMSG2(_("E447: Can't find file \"%s\" in path"), ptr); 6255 ptr[len] = c; 6256 } 6257 6258 /* Repeat finding the file "count" times. This matters when it 6259 * appears several times in the path. */ 6260 while (file_name != NULL && --count > 0) 6261 { 6262 vim_free(file_name); 6263 file_name = find_file_in_path(ptr, len, options, FALSE, rel_fname); 6264 } 6265 } 6266 else 6267 file_name = vim_strnsave(ptr, len); 6268 6269 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6270 vim_free(tofree); 6271 # endif 6272 6273 return file_name; 6274 } 6275 #endif /* FEAT_SEARCHPATH */ 6276 6277 /* 6278 * Check if the "://" of a URL is at the pointer, return URL_SLASH. 6279 * Also check for ":\\", which MS Internet Explorer accepts, return 6280 * URL_BACKSLASH. 6281 */ 6282 static int 6283 path_is_url(char_u *p) 6284 { 6285 if (STRNCMP(p, "://", (size_t)3) == 0) 6286 return URL_SLASH; 6287 else if (STRNCMP(p, ":\\\\", (size_t)3) == 0) 6288 return URL_BACKSLASH; 6289 return 0; 6290 } 6291 6292 /* 6293 * Check if "fname" starts with "name://". Return URL_SLASH if it does. 6294 * Return URL_BACKSLASH for "name:\\". 6295 * Return zero otherwise. 6296 */ 6297 int 6298 path_with_url(char_u *fname) 6299 { 6300 char_u *p; 6301 6302 for (p = fname; isalpha(*p); ++p) 6303 ; 6304 return path_is_url(p); 6305 } 6306 6307 /* 6308 * Return TRUE if "name" is a full (absolute) path name or URL. 6309 */ 6310 int 6311 vim_isAbsName(char_u *name) 6312 { 6313 return (path_with_url(name) != 0 || mch_isFullName(name)); 6314 } 6315 6316 /* 6317 * Get absolute file name into buffer "buf[len]". 6318 * 6319 * return FAIL for failure, OK otherwise 6320 */ 6321 int 6322 vim_FullName( 6323 char_u *fname, 6324 char_u *buf, 6325 int len, 6326 int force) /* force expansion even when already absolute */ 6327 { 6328 int retval = OK; 6329 int url; 6330 6331 *buf = NUL; 6332 if (fname == NULL) 6333 return FAIL; 6334 6335 url = path_with_url(fname); 6336 if (!url) 6337 retval = mch_FullName(fname, buf, len, force); 6338 if (url || retval == FAIL) 6339 { 6340 /* something failed; use the file name (truncate when too long) */ 6341 vim_strncpy(buf, fname, len - 1); 6342 } 6343 #if defined(MACOS_CLASSIC) || defined(MSWIN) 6344 slash_adjust(buf); 6345 #endif 6346 return retval; 6347 } 6348 6349 /* 6350 * Return the minimal number of rows that is needed on the screen to display 6351 * the current number of windows. 6352 */ 6353 int 6354 min_rows(void) 6355 { 6356 int total; 6357 #ifdef FEAT_WINDOWS 6358 tabpage_T *tp; 6359 int n; 6360 #endif 6361 6362 if (firstwin == NULL) /* not initialized yet */ 6363 return MIN_LINES; 6364 6365 #ifdef FEAT_WINDOWS 6366 total = 0; 6367 FOR_ALL_TABPAGES(tp) 6368 { 6369 n = frame_minheight(tp->tp_topframe, NULL); 6370 if (total < n) 6371 total = n; 6372 } 6373 total += tabline_height(); 6374 #else 6375 total = 1; /* at least one window should have a line! */ 6376 #endif 6377 total += 1; /* count the room for the command line */ 6378 return total; 6379 } 6380 6381 /* 6382 * Return TRUE if there is only one window (in the current tab page), not 6383 * counting a help or preview window, unless it is the current window. 6384 * Does not count "aucmd_win". 6385 */ 6386 int 6387 only_one_window(void) 6388 { 6389 #ifdef FEAT_WINDOWS 6390 int count = 0; 6391 win_T *wp; 6392 6393 /* If there is another tab page there always is another window. */ 6394 if (first_tabpage->tp_next != NULL) 6395 return FALSE; 6396 6397 FOR_ALL_WINDOWS(wp) 6398 if (wp->w_buffer != NULL 6399 && (!((wp->w_buffer->b_help && !curbuf->b_help) 6400 # ifdef FEAT_QUICKFIX 6401 || wp->w_p_pvw 6402 # endif 6403 ) || wp == curwin) 6404 # ifdef FEAT_AUTOCMD 6405 && wp != aucmd_win 6406 # endif 6407 ) 6408 ++count; 6409 return (count <= 1); 6410 #else 6411 return TRUE; 6412 #endif 6413 } 6414 6415 #if defined(FEAT_WINDOWS) || defined(FEAT_AUTOCMD) || defined(PROTO) 6416 /* 6417 * Correct the cursor line number in other windows. Used after changing the 6418 * current buffer, and before applying autocommands. 6419 * When "do_curwin" is TRUE, also check current window. 6420 */ 6421 void 6422 check_lnums(int do_curwin) 6423 { 6424 win_T *wp; 6425 6426 #ifdef FEAT_WINDOWS 6427 tabpage_T *tp; 6428 6429 FOR_ALL_TAB_WINDOWS(tp, wp) 6430 if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) 6431 #else 6432 wp = curwin; 6433 if (do_curwin) 6434 #endif 6435 { 6436 if (wp->w_cursor.lnum > curbuf->b_ml.ml_line_count) 6437 wp->w_cursor.lnum = curbuf->b_ml.ml_line_count; 6438 if (wp->w_topline > curbuf->b_ml.ml_line_count) 6439 wp->w_topline = curbuf->b_ml.ml_line_count; 6440 } 6441 } 6442 #endif 6443 6444 #if defined(FEAT_WINDOWS) || defined(PROTO) 6445 6446 /* 6447 * A snapshot of the window sizes, to restore them after closing the help 6448 * window. 6449 * Only these fields are used: 6450 * fr_layout 6451 * fr_width 6452 * fr_height 6453 * fr_next 6454 * fr_child 6455 * fr_win (only valid for the old curwin, NULL otherwise) 6456 */ 6457 6458 /* 6459 * Create a snapshot of the current frame sizes. 6460 */ 6461 void 6462 make_snapshot(int idx) 6463 { 6464 clear_snapshot(curtab, idx); 6465 make_snapshot_rec(topframe, &curtab->tp_snapshot[idx]); 6466 } 6467 6468 static void 6469 make_snapshot_rec(frame_T *fr, frame_T **frp) 6470 { 6471 *frp = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); 6472 if (*frp == NULL) 6473 return; 6474 (*frp)->fr_layout = fr->fr_layout; 6475 (*frp)->fr_width = fr->fr_width; 6476 (*frp)->fr_height = fr->fr_height; 6477 if (fr->fr_next != NULL) 6478 make_snapshot_rec(fr->fr_next, &((*frp)->fr_next)); 6479 if (fr->fr_child != NULL) 6480 make_snapshot_rec(fr->fr_child, &((*frp)->fr_child)); 6481 if (fr->fr_layout == FR_LEAF && fr->fr_win == curwin) 6482 (*frp)->fr_win = curwin; 6483 } 6484 6485 /* 6486 * Remove any existing snapshot. 6487 */ 6488 static void 6489 clear_snapshot(tabpage_T *tp, int idx) 6490 { 6491 clear_snapshot_rec(tp->tp_snapshot[idx]); 6492 tp->tp_snapshot[idx] = NULL; 6493 } 6494 6495 static void 6496 clear_snapshot_rec(frame_T *fr) 6497 { 6498 if (fr != NULL) 6499 { 6500 clear_snapshot_rec(fr->fr_next); 6501 clear_snapshot_rec(fr->fr_child); 6502 vim_free(fr); 6503 } 6504 } 6505 6506 /* 6507 * Restore a previously created snapshot, if there is any. 6508 * This is only done if the screen size didn't change and the window layout is 6509 * still the same. 6510 */ 6511 void 6512 restore_snapshot( 6513 int idx, 6514 int close_curwin) /* closing current window */ 6515 { 6516 win_T *wp; 6517 6518 if (curtab->tp_snapshot[idx] != NULL 6519 && curtab->tp_snapshot[idx]->fr_width == topframe->fr_width 6520 && curtab->tp_snapshot[idx]->fr_height == topframe->fr_height 6521 && check_snapshot_rec(curtab->tp_snapshot[idx], topframe) == OK) 6522 { 6523 wp = restore_snapshot_rec(curtab->tp_snapshot[idx], topframe); 6524 win_comp_pos(); 6525 if (wp != NULL && close_curwin) 6526 win_goto(wp); 6527 redraw_all_later(CLEAR); 6528 } 6529 clear_snapshot(curtab, idx); 6530 } 6531 6532 /* 6533 * Check if frames "sn" and "fr" have the same layout, same following frames 6534 * and same children. 6535 */ 6536 static int 6537 check_snapshot_rec(frame_T *sn, frame_T *fr) 6538 { 6539 if (sn->fr_layout != fr->fr_layout 6540 || (sn->fr_next == NULL) != (fr->fr_next == NULL) 6541 || (sn->fr_child == NULL) != (fr->fr_child == NULL) 6542 || (sn->fr_next != NULL 6543 && check_snapshot_rec(sn->fr_next, fr->fr_next) == FAIL) 6544 || (sn->fr_child != NULL 6545 && check_snapshot_rec(sn->fr_child, fr->fr_child) == FAIL)) 6546 return FAIL; 6547 return OK; 6548 } 6549 6550 /* 6551 * Copy the size of snapshot frame "sn" to frame "fr". Do the same for all 6552 * following frames and children. 6553 * Returns a pointer to the old current window, or NULL. 6554 */ 6555 static win_T * 6556 restore_snapshot_rec(frame_T *sn, frame_T *fr) 6557 { 6558 win_T *wp = NULL; 6559 win_T *wp2; 6560 6561 fr->fr_height = sn->fr_height; 6562 fr->fr_width = sn->fr_width; 6563 if (fr->fr_layout == FR_LEAF) 6564 { 6565 frame_new_height(fr, fr->fr_height, FALSE, FALSE); 6566 frame_new_width(fr, fr->fr_width, FALSE, FALSE); 6567 wp = sn->fr_win; 6568 } 6569 if (sn->fr_next != NULL) 6570 { 6571 wp2 = restore_snapshot_rec(sn->fr_next, fr->fr_next); 6572 if (wp2 != NULL) 6573 wp = wp2; 6574 } 6575 if (sn->fr_child != NULL) 6576 { 6577 wp2 = restore_snapshot_rec(sn->fr_child, fr->fr_child); 6578 if (wp2 != NULL) 6579 wp = wp2; 6580 } 6581 return wp; 6582 } 6583 6584 #endif 6585 6586 #if defined(FEAT_EVAL) || defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) \ 6587 || defined(PROTO) 6588 /* 6589 * Set "win" to be the curwin and "tp" to be the current tab page. 6590 * restore_win() MUST be called to undo, also when FAIL is returned. 6591 * No autocommands will be executed until restore_win() is called. 6592 * When "no_display" is TRUE the display won't be affected, no redraw is 6593 * triggered, another tabpage access is limited. 6594 * Returns FAIL if switching to "win" failed. 6595 */ 6596 int 6597 switch_win( 6598 win_T **save_curwin UNUSED, 6599 tabpage_T **save_curtab UNUSED, 6600 win_T *win UNUSED, 6601 tabpage_T *tp UNUSED, 6602 int no_display UNUSED) 6603 { 6604 # ifdef FEAT_AUTOCMD 6605 block_autocmds(); 6606 # endif 6607 # ifdef FEAT_WINDOWS 6608 *save_curwin = curwin; 6609 if (tp != NULL) 6610 { 6611 *save_curtab = curtab; 6612 if (no_display) 6613 { 6614 curtab->tp_firstwin = firstwin; 6615 curtab->tp_lastwin = lastwin; 6616 curtab = tp; 6617 firstwin = curtab->tp_firstwin; 6618 lastwin = curtab->tp_lastwin; 6619 } 6620 else 6621 goto_tabpage_tp(tp, FALSE, FALSE); 6622 } 6623 if (!win_valid(win)) 6624 return FAIL; 6625 curwin = win; 6626 curbuf = curwin->w_buffer; 6627 # endif 6628 return OK; 6629 } 6630 6631 /* 6632 * Restore current tabpage and window saved by switch_win(), if still valid. 6633 * When "no_display" is TRUE the display won't be affected, no redraw is 6634 * triggered. 6635 */ 6636 void 6637 restore_win( 6638 win_T *save_curwin UNUSED, 6639 tabpage_T *save_curtab UNUSED, 6640 int no_display UNUSED) 6641 { 6642 # ifdef FEAT_WINDOWS 6643 if (save_curtab != NULL && valid_tabpage(save_curtab)) 6644 { 6645 if (no_display) 6646 { 6647 curtab->tp_firstwin = firstwin; 6648 curtab->tp_lastwin = lastwin; 6649 curtab = save_curtab; 6650 firstwin = curtab->tp_firstwin; 6651 lastwin = curtab->tp_lastwin; 6652 } 6653 else 6654 goto_tabpage_tp(save_curtab, FALSE, FALSE); 6655 } 6656 if (win_valid(save_curwin)) 6657 { 6658 curwin = save_curwin; 6659 curbuf = curwin->w_buffer; 6660 } 6661 # endif 6662 # ifdef FEAT_AUTOCMD 6663 unblock_autocmds(); 6664 # endif 6665 } 6666 6667 /* 6668 * Make "buf" the current buffer. restore_buffer() MUST be called to undo. 6669 * No autocommands will be executed. Use aucmd_prepbuf() if there are any. 6670 */ 6671 void 6672 switch_buffer(bufref_T *save_curbuf, buf_T *buf) 6673 { 6674 # ifdef FEAT_AUTOCMD 6675 block_autocmds(); 6676 # endif 6677 set_bufref(save_curbuf, curbuf); 6678 --curbuf->b_nwindows; 6679 curbuf = buf; 6680 curwin->w_buffer = buf; 6681 ++curbuf->b_nwindows; 6682 } 6683 6684 /* 6685 * Restore the current buffer after using switch_buffer(). 6686 */ 6687 void 6688 restore_buffer(bufref_T *save_curbuf) 6689 { 6690 # ifdef FEAT_AUTOCMD 6691 unblock_autocmds(); 6692 # endif 6693 /* Check for valid buffer, just in case. */ 6694 if (bufref_valid(save_curbuf)) 6695 { 6696 --curbuf->b_nwindows; 6697 curwin->w_buffer = save_curbuf->br_buf; 6698 curbuf = save_curbuf->br_buf; 6699 ++curbuf->b_nwindows; 6700 } 6701 } 6702 #endif 6703 6704 #if (defined(FEAT_GUI) && defined(FEAT_WINDOWS)) || defined(PROTO) 6705 /* 6706 * Return TRUE if there is any vertically split window. 6707 */ 6708 int 6709 win_hasvertsplit(void) 6710 { 6711 frame_T *fr; 6712 6713 if (topframe->fr_layout == FR_ROW) 6714 return TRUE; 6715 6716 if (topframe->fr_layout == FR_COL) 6717 for (fr = topframe->fr_child; fr != NULL; fr = fr->fr_next) 6718 if (fr->fr_layout == FR_ROW) 6719 return TRUE; 6720 6721 return FALSE; 6722 } 6723 #endif 6724 6725 #if defined(FEAT_SEARCH_EXTRA) || defined(PROTO) 6726 /* 6727 * Add match to the match list of window 'wp'. The pattern 'pat' will be 6728 * highlighted with the group 'grp' with priority 'prio'. 6729 * Optionally, a desired ID 'id' can be specified (greater than or equal to 1). 6730 * If no particular ID is desired, -1 must be specified for 'id'. 6731 * Return ID of added match, -1 on failure. 6732 */ 6733 int 6734 match_add( 6735 win_T *wp, 6736 char_u *grp, 6737 char_u *pat, 6738 int prio, 6739 int id, 6740 list_T *pos_list, 6741 char_u *conceal_char UNUSED) /* pointer to conceal replacement char */ 6742 { 6743 matchitem_T *cur; 6744 matchitem_T *prev; 6745 matchitem_T *m; 6746 int hlg_id; 6747 regprog_T *regprog = NULL; 6748 int rtype = SOME_VALID; 6749 6750 if (*grp == NUL || (pat != NULL && *pat == NUL)) 6751 return -1; 6752 if (id < -1 || id == 0) 6753 { 6754 EMSGN(_("E799: Invalid ID: %ld (must be greater than or equal to 1)"), id); 6755 return -1; 6756 } 6757 if (id != -1) 6758 { 6759 cur = wp->w_match_head; 6760 while (cur != NULL) 6761 { 6762 if (cur->id == id) 6763 { 6764 EMSGN(_("E801: ID already taken: %ld"), id); 6765 return -1; 6766 } 6767 cur = cur->next; 6768 } 6769 } 6770 if ((hlg_id = syn_namen2id(grp, (int)STRLEN(grp))) == 0) 6771 { 6772 EMSG2(_(e_nogroup), grp); 6773 return -1; 6774 } 6775 if (pat != NULL && (regprog = vim_regcomp(pat, RE_MAGIC)) == NULL) 6776 { 6777 EMSG2(_(e_invarg2), pat); 6778 return -1; 6779 } 6780 6781 /* Find available match ID. */ 6782 while (id == -1) 6783 { 6784 cur = wp->w_match_head; 6785 while (cur != NULL && cur->id != wp->w_next_match_id) 6786 cur = cur->next; 6787 if (cur == NULL) 6788 id = wp->w_next_match_id; 6789 wp->w_next_match_id++; 6790 } 6791 6792 /* Build new match. */ 6793 m = (matchitem_T *)alloc_clear(sizeof(matchitem_T)); 6794 m->id = id; 6795 m->priority = prio; 6796 m->pattern = pat == NULL ? NULL : vim_strsave(pat); 6797 m->hlg_id = hlg_id; 6798 m->match.regprog = regprog; 6799 m->match.rmm_ic = FALSE; 6800 m->match.rmm_maxcol = 0; 6801 # if defined(FEAT_CONCEAL) && defined(FEAT_MBYTE) 6802 m->conceal_char = 0; 6803 if (conceal_char != NULL) 6804 m->conceal_char = (*mb_ptr2char)(conceal_char); 6805 # endif 6806 6807 /* Set up position matches */ 6808 if (pos_list != NULL) 6809 { 6810 linenr_T toplnum = 0; 6811 linenr_T botlnum = 0; 6812 listitem_T *li; 6813 int i; 6814 6815 for (i = 0, li = pos_list->lv_first; li != NULL && i < MAXPOSMATCH; 6816 i++, li = li->li_next) 6817 { 6818 linenr_T lnum = 0; 6819 colnr_T col = 0; 6820 int len = 1; 6821 list_T *subl; 6822 listitem_T *subli; 6823 int error = FALSE; 6824 6825 if (li->li_tv.v_type == VAR_LIST) 6826 { 6827 subl = li->li_tv.vval.v_list; 6828 if (subl == NULL) 6829 goto fail; 6830 subli = subl->lv_first; 6831 if (subli == NULL) 6832 goto fail; 6833 lnum = get_tv_number_chk(&subli->li_tv, &error); 6834 if (error == TRUE) 6835 goto fail; 6836 if (lnum == 0) 6837 { 6838 --i; 6839 continue; 6840 } 6841 m->pos.pos[i].lnum = lnum; 6842 subli = subli->li_next; 6843 if (subli != NULL) 6844 { 6845 col = get_tv_number_chk(&subli->li_tv, &error); 6846 if (error == TRUE) 6847 goto fail; 6848 subli = subli->li_next; 6849 if (subli != NULL) 6850 { 6851 len = get_tv_number_chk(&subli->li_tv, &error); 6852 if (error == TRUE) 6853 goto fail; 6854 } 6855 } 6856 m->pos.pos[i].col = col; 6857 m->pos.pos[i].len = len; 6858 } 6859 else if (li->li_tv.v_type == VAR_NUMBER) 6860 { 6861 if (li->li_tv.vval.v_number == 0) 6862 { 6863 --i; 6864 continue; 6865 } 6866 m->pos.pos[i].lnum = li->li_tv.vval.v_number; 6867 m->pos.pos[i].col = 0; 6868 m->pos.pos[i].len = 0; 6869 } 6870 else 6871 { 6872 EMSG(_("List or number required")); 6873 goto fail; 6874 } 6875 if (toplnum == 0 || lnum < toplnum) 6876 toplnum = lnum; 6877 if (botlnum == 0 || lnum >= botlnum) 6878 botlnum = lnum + 1; 6879 } 6880 6881 /* Calculate top and bottom lines for redrawing area */ 6882 if (toplnum != 0) 6883 { 6884 if (wp->w_buffer->b_mod_set) 6885 { 6886 if (wp->w_buffer->b_mod_top > toplnum) 6887 wp->w_buffer->b_mod_top = toplnum; 6888 if (wp->w_buffer->b_mod_bot < botlnum) 6889 wp->w_buffer->b_mod_bot = botlnum; 6890 } 6891 else 6892 { 6893 wp->w_buffer->b_mod_set = TRUE; 6894 wp->w_buffer->b_mod_top = toplnum; 6895 wp->w_buffer->b_mod_bot = botlnum; 6896 wp->w_buffer->b_mod_xlines = 0; 6897 } 6898 m->pos.toplnum = toplnum; 6899 m->pos.botlnum = botlnum; 6900 rtype = VALID; 6901 } 6902 } 6903 6904 /* Insert new match. The match list is in ascending order with regard to 6905 * the match priorities. */ 6906 cur = wp->w_match_head; 6907 prev = cur; 6908 while (cur != NULL && prio >= cur->priority) 6909 { 6910 prev = cur; 6911 cur = cur->next; 6912 } 6913 if (cur == prev) 6914 wp->w_match_head = m; 6915 else 6916 prev->next = m; 6917 m->next = cur; 6918 6919 redraw_later(rtype); 6920 return id; 6921 6922 fail: 6923 vim_free(m); 6924 return -1; 6925 } 6926 6927 /* 6928 * Delete match with ID 'id' in the match list of window 'wp'. 6929 * Print error messages if 'perr' is TRUE. 6930 */ 6931 int 6932 match_delete(win_T *wp, int id, int perr) 6933 { 6934 matchitem_T *cur = wp->w_match_head; 6935 matchitem_T *prev = cur; 6936 int rtype = SOME_VALID; 6937 6938 if (id < 1) 6939 { 6940 if (perr == TRUE) 6941 EMSGN(_("E802: Invalid ID: %ld (must be greater than or equal to 1)"), 6942 id); 6943 return -1; 6944 } 6945 while (cur != NULL && cur->id != id) 6946 { 6947 prev = cur; 6948 cur = cur->next; 6949 } 6950 if (cur == NULL) 6951 { 6952 if (perr == TRUE) 6953 EMSGN(_("E803: ID not found: %ld"), id); 6954 return -1; 6955 } 6956 if (cur == prev) 6957 wp->w_match_head = cur->next; 6958 else 6959 prev->next = cur->next; 6960 vim_regfree(cur->match.regprog); 6961 vim_free(cur->pattern); 6962 if (cur->pos.toplnum != 0) 6963 { 6964 if (wp->w_buffer->b_mod_set) 6965 { 6966 if (wp->w_buffer->b_mod_top > cur->pos.toplnum) 6967 wp->w_buffer->b_mod_top = cur->pos.toplnum; 6968 if (wp->w_buffer->b_mod_bot < cur->pos.botlnum) 6969 wp->w_buffer->b_mod_bot = cur->pos.botlnum; 6970 } 6971 else 6972 { 6973 wp->w_buffer->b_mod_set = TRUE; 6974 wp->w_buffer->b_mod_top = cur->pos.toplnum; 6975 wp->w_buffer->b_mod_bot = cur->pos.botlnum; 6976 wp->w_buffer->b_mod_xlines = 0; 6977 } 6978 rtype = VALID; 6979 } 6980 vim_free(cur); 6981 redraw_later(rtype); 6982 return 0; 6983 } 6984 6985 /* 6986 * Delete all matches in the match list of window 'wp'. 6987 */ 6988 void 6989 clear_matches(win_T *wp) 6990 { 6991 matchitem_T *m; 6992 6993 while (wp->w_match_head != NULL) 6994 { 6995 m = wp->w_match_head->next; 6996 vim_regfree(wp->w_match_head->match.regprog); 6997 vim_free(wp->w_match_head->pattern); 6998 vim_free(wp->w_match_head); 6999 wp->w_match_head = m; 7000 } 7001 redraw_later(SOME_VALID); 7002 } 7003 7004 /* 7005 * Get match from ID 'id' in window 'wp'. 7006 * Return NULL if match not found. 7007 */ 7008 matchitem_T * 7009 get_match(win_T *wp, int id) 7010 { 7011 matchitem_T *cur = wp->w_match_head; 7012 7013 while (cur != NULL && cur->id != id) 7014 cur = cur->next; 7015 return cur; 7016 } 7017 #endif 7018 7019 #if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO) 7020 int 7021 get_win_number(win_T *wp, win_T *first_win) 7022 { 7023 int i = 1; 7024 win_T *w; 7025 7026 for (w = first_win; w != NULL && w != wp; w = W_NEXT(w)) 7027 ++i; 7028 7029 if (w == NULL) 7030 return 0; 7031 else 7032 return i; 7033 } 7034 7035 int 7036 get_tab_number(tabpage_T *tp UNUSED) 7037 { 7038 int i = 1; 7039 # ifdef FEAT_WINDOWS 7040 tabpage_T *t; 7041 7042 for (t = first_tabpage; t != NULL && t != tp; t = t->tp_next) 7043 ++i; 7044 7045 if (t == NULL) 7046 return 0; 7047 else 7048 # endif 7049 return i; 7050 } 7051 #endif 7052 7053 #if defined(FEAT_WINDOWS) || defined(PROTO) 7054 /* 7055 * Return TRUE if "topfrp" and its children are at the right height. 7056 */ 7057 static int 7058 frame_check_height(frame_T *topfrp, int height) 7059 { 7060 frame_T *frp; 7061 7062 if (topfrp->fr_height != height) 7063 return FALSE; 7064 7065 if (topfrp->fr_layout == FR_ROW) 7066 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 7067 if (frp->fr_height != height) 7068 return FALSE; 7069 7070 return TRUE; 7071 } 7072 #endif 7073 7074 #if defined(FEAT_WINDOWS) || defined(PROTO) 7075 /* 7076 * Return TRUE if "topfrp" and its children are at the right width. 7077 */ 7078 static int 7079 frame_check_width(frame_T *topfrp, int width) 7080 { 7081 frame_T *frp; 7082 7083 if (topfrp->fr_width != width) 7084 return FALSE; 7085 7086 if (topfrp->fr_layout == FR_COL) 7087 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 7088 if (frp->fr_width != width) 7089 return FALSE; 7090 7091 return TRUE; 7092 } 7093 #endif 7094 7095 #if defined(FEAT_EVAL) || defined(PROTO) 7096 int 7097 win_getid(typval_T *argvars) 7098 { 7099 int winnr; 7100 win_T *wp; 7101 7102 if (argvars[0].v_type == VAR_UNKNOWN) 7103 return curwin->w_id; 7104 winnr = get_tv_number(&argvars[0]); 7105 if (winnr > 0) 7106 { 7107 if (argvars[1].v_type == VAR_UNKNOWN) 7108 wp = firstwin; 7109 else 7110 { 7111 tabpage_T *tp; 7112 int tabnr = get_tv_number(&argvars[1]); 7113 7114 FOR_ALL_TABPAGES(tp) 7115 if (--tabnr == 0) 7116 break; 7117 if (tp == NULL) 7118 return -1; 7119 wp = tp->tp_firstwin; 7120 } 7121 for ( ; wp != NULL; wp = wp->w_next) 7122 if (--winnr == 0) 7123 return wp->w_id; 7124 } 7125 return 0; 7126 } 7127 7128 int 7129 win_gotoid(typval_T *argvars) 7130 { 7131 win_T *wp; 7132 tabpage_T *tp; 7133 int id = get_tv_number(&argvars[0]); 7134 7135 FOR_ALL_TAB_WINDOWS(tp, wp) 7136 if (wp->w_id == id) 7137 { 7138 goto_tabpage_win(tp, wp); 7139 return 1; 7140 } 7141 return 0; 7142 } 7143 7144 void 7145 win_id2tabwin(typval_T *argvars, list_T *list) 7146 { 7147 win_T *wp; 7148 tabpage_T *tp; 7149 int winnr = 1; 7150 int tabnr = 1; 7151 int id = get_tv_number(&argvars[0]); 7152 7153 FOR_ALL_TABPAGES(tp) 7154 { 7155 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 7156 { 7157 if (wp->w_id == id) 7158 { 7159 list_append_number(list, tabnr); 7160 list_append_number(list, winnr); 7161 return; 7162 } 7163 ++winnr; 7164 } 7165 ++tabnr; 7166 winnr = 1; 7167 } 7168 list_append_number(list, 0); 7169 list_append_number(list, 0); 7170 } 7171 7172 win_T * 7173 win_id2wp(typval_T *argvars) 7174 { 7175 win_T *wp; 7176 tabpage_T *tp; 7177 int id = get_tv_number(&argvars[0]); 7178 7179 FOR_ALL_TAB_WINDOWS(tp, wp) 7180 if (wp->w_id == id) 7181 return wp; 7182 7183 return NULL; 7184 } 7185 7186 int 7187 win_id2win(typval_T *argvars) 7188 { 7189 win_T *wp; 7190 int nr = 1; 7191 int id = get_tv_number(&argvars[0]); 7192 7193 FOR_ALL_WINDOWS(wp) 7194 { 7195 if (wp->w_id == id) 7196 return nr; 7197 ++nr; 7198 } 7199 return 0; 7200 } 7201 7202 void 7203 win_findbuf(typval_T *argvars, list_T *list) 7204 { 7205 win_T *wp; 7206 tabpage_T *tp; 7207 int bufnr = get_tv_number(&argvars[0]); 7208 7209 FOR_ALL_TAB_WINDOWS(tp, wp) 7210 if (wp->w_buffer->b_fnum == bufnr) 7211 list_append_number(list, wp->w_id); 7212 } 7213 7214 #endif 7215