1 /* vi:set ts=8 sts=4 sw=4 noet: 2 * 3 * VIM - Vi IMproved by Bram Moolenaar 4 * 5 * Do ":help uganda" in Vim to read a list of people who contributed. 6 * Do ":help credits" in Vim to see a list of people who contributed. 7 * See README.txt for an overview of the Vim source code. 8 */ 9 10 #include "vim.h" 11 12 static int path_is_url(char_u *p); 13 #if defined(FEAT_WINDOWS) || defined(PROTO) 14 static void cmd_with_count(char *cmd, char_u *bufp, size_t bufsize, long Prenum); 15 static void win_init(win_T *newp, win_T *oldp, int flags); 16 static void win_init_some(win_T *newp, win_T *oldp); 17 static void frame_comp_pos(frame_T *topfrp, int *row, int *col); 18 static void frame_setheight(frame_T *curfrp, int height); 19 static void frame_setwidth(frame_T *curfrp, int width); 20 static void win_exchange(long); 21 static void win_rotate(int, int); 22 static void win_totop(int size, int flags); 23 static void win_equal_rec(win_T *next_curwin, int current, frame_T *topfr, int dir, int col, int row, int width, int height); 24 static int last_window(void); 25 static int close_last_window_tabpage(win_T *win, int free_buf, tabpage_T *prev_curtab); 26 static win_T *win_free_mem(win_T *win, int *dirp, tabpage_T *tp); 27 static frame_T *win_altframe(win_T *win, tabpage_T *tp); 28 static tabpage_T *alt_tabpage(void); 29 static win_T *frame2win(frame_T *frp); 30 static int frame_has_win(frame_T *frp, win_T *wp); 31 static void frame_new_height(frame_T *topfrp, int height, int topfirst, int wfh); 32 static int frame_fixed_height(frame_T *frp); 33 static int frame_fixed_width(frame_T *frp); 34 static void frame_add_statusline(frame_T *frp); 35 static void frame_new_width(frame_T *topfrp, int width, int leftfirst, int wfw); 36 static void frame_add_vsep(frame_T *frp); 37 static int frame_minwidth(frame_T *topfrp, win_T *next_curwin); 38 static void frame_fix_width(win_T *wp); 39 #endif 40 static int win_alloc_firstwin(win_T *oldwin); 41 static void new_frame(win_T *wp); 42 #if defined(FEAT_WINDOWS) || defined(PROTO) 43 static tabpage_T *alloc_tabpage(void); 44 static int leave_tabpage(buf_T *new_curbuf, int trigger_leave_autocmds); 45 static void enter_tabpage(tabpage_T *tp, buf_T *old_curbuf, int trigger_enter_autocmds, int trigger_leave_autocmds); 46 static void frame_fix_height(win_T *wp); 47 static int frame_minheight(frame_T *topfrp, win_T *next_curwin); 48 static void win_enter_ext(win_T *wp, int undo_sync, int no_curwin, int trigger_new_autocmds, int trigger_enter_autocmds, int trigger_leave_autocmds); 49 static void win_free(win_T *wp, tabpage_T *tp); 50 static void frame_append(frame_T *after, frame_T *frp); 51 static void frame_insert(frame_T *before, frame_T *frp); 52 static void frame_remove(frame_T *frp); 53 static void win_goto_ver(int up, long count); 54 static void win_goto_hor(int left, long count); 55 static void frame_add_height(frame_T *frp, int n); 56 static void last_status_rec(frame_T *fr, int statusline); 57 58 static void make_snapshot_rec(frame_T *fr, frame_T **frp); 59 static void clear_snapshot(tabpage_T *tp, int idx); 60 static void clear_snapshot_rec(frame_T *fr); 61 static int check_snapshot_rec(frame_T *sn, frame_T *fr); 62 static win_T *restore_snapshot_rec(frame_T *sn, frame_T *fr); 63 64 static int frame_check_height(frame_T *topfrp, int height); 65 static int frame_check_width(frame_T *topfrp, int width); 66 67 #endif /* FEAT_WINDOWS */ 68 69 static win_T *win_alloc(win_T *after, int hidden); 70 71 #define URL_SLASH 1 /* path_is_url() has found "://" */ 72 #define URL_BACKSLASH 2 /* path_is_url() has found ":\\" */ 73 74 #define NOWIN (win_T *)-1 /* non-existing window */ 75 76 #ifdef FEAT_WINDOWS 77 # define ROWS_AVAIL (Rows - p_ch - tabline_height()) 78 #else 79 # define ROWS_AVAIL (Rows - p_ch) 80 #endif 81 82 #if defined(FEAT_WINDOWS) || defined(PROTO) 83 84 static char *m_onlyone = N_("Already only one window"); 85 86 /* 87 * all CTRL-W window commands are handled here, called from normal_cmd(). 88 */ 89 void 90 do_window( 91 int nchar, 92 long Prenum, 93 int xchar) /* extra char from ":wincmd gx" or NUL */ 94 { 95 long Prenum1; 96 win_T *wp; 97 #if defined(FEAT_SEARCHPATH) || defined(FEAT_FIND_ID) 98 char_u *ptr; 99 linenr_T lnum = -1; 100 #endif 101 #ifdef FEAT_FIND_ID 102 int type = FIND_DEFINE; 103 int len; 104 #endif 105 char_u cbuf[40]; 106 107 if (Prenum == 0) 108 Prenum1 = 1; 109 else 110 Prenum1 = Prenum; 111 112 #ifdef FEAT_CMDWIN 113 # define CHECK_CMDWIN if (cmdwin_type != 0) { EMSG(_(e_cmdwin)); break; } 114 #else 115 # define CHECK_CMDWIN 116 #endif 117 118 switch (nchar) 119 { 120 /* split current window in two parts, horizontally */ 121 case 'S': 122 case Ctrl_S: 123 case 's': 124 CHECK_CMDWIN 125 reset_VIsual_and_resel(); /* stop Visual mode */ 126 #ifdef FEAT_QUICKFIX 127 /* When splitting the quickfix window open a new buffer in it, 128 * don't replicate the quickfix buffer. */ 129 if (bt_quickfix(curbuf)) 130 goto newwindow; 131 #endif 132 #ifdef FEAT_GUI 133 need_mouse_correct = TRUE; 134 #endif 135 (void)win_split((int)Prenum, 0); 136 break; 137 138 /* split current window in two parts, vertically */ 139 case Ctrl_V: 140 case 'v': 141 CHECK_CMDWIN 142 reset_VIsual_and_resel(); /* stop Visual mode */ 143 #ifdef FEAT_QUICKFIX 144 /* When splitting the quickfix window open a new buffer in it, 145 * don't replicate the quickfix buffer. */ 146 if (bt_quickfix(curbuf)) 147 goto newwindow; 148 #endif 149 #ifdef FEAT_GUI 150 need_mouse_correct = TRUE; 151 #endif 152 (void)win_split((int)Prenum, WSP_VERT); 153 break; 154 155 /* split current window and edit alternate file */ 156 case Ctrl_HAT: 157 case '^': 158 CHECK_CMDWIN 159 reset_VIsual_and_resel(); /* stop Visual mode */ 160 cmd_with_count("split #", cbuf, sizeof(cbuf), Prenum); 161 do_cmdline_cmd(cbuf); 162 break; 163 164 /* open new window */ 165 case Ctrl_N: 166 case 'n': 167 CHECK_CMDWIN 168 reset_VIsual_and_resel(); /* stop Visual mode */ 169 #ifdef FEAT_QUICKFIX 170 newwindow: 171 #endif 172 if (Prenum) 173 /* window height */ 174 vim_snprintf((char *)cbuf, sizeof(cbuf) - 5, "%ld", Prenum); 175 else 176 cbuf[0] = NUL; 177 #if defined(FEAT_QUICKFIX) 178 if (nchar == 'v' || nchar == Ctrl_V) 179 STRCAT(cbuf, "v"); 180 #endif 181 STRCAT(cbuf, "new"); 182 do_cmdline_cmd(cbuf); 183 break; 184 185 /* quit current window */ 186 case Ctrl_Q: 187 case 'q': 188 reset_VIsual_and_resel(); /* stop Visual mode */ 189 cmd_with_count("quit", cbuf, sizeof(cbuf), Prenum); 190 do_cmdline_cmd(cbuf); 191 break; 192 193 /* close current window */ 194 case Ctrl_C: 195 case 'c': 196 reset_VIsual_and_resel(); /* stop Visual mode */ 197 cmd_with_count("close", cbuf, sizeof(cbuf), Prenum); 198 do_cmdline_cmd(cbuf); 199 break; 200 201 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX) 202 /* close preview window */ 203 case Ctrl_Z: 204 case 'z': 205 CHECK_CMDWIN 206 reset_VIsual_and_resel(); /* stop Visual mode */ 207 do_cmdline_cmd((char_u *)"pclose"); 208 break; 209 210 /* cursor to preview window */ 211 case 'P': 212 FOR_ALL_WINDOWS(wp) 213 if (wp->w_p_pvw) 214 break; 215 if (wp == NULL) 216 EMSG(_("E441: There is no preview window")); 217 else 218 win_goto(wp); 219 break; 220 #endif 221 222 /* close all but current window */ 223 case Ctrl_O: 224 case 'o': 225 CHECK_CMDWIN 226 reset_VIsual_and_resel(); /* stop Visual mode */ 227 cmd_with_count("only", cbuf, sizeof(cbuf), Prenum); 228 do_cmdline_cmd(cbuf); 229 break; 230 231 /* cursor to next window with wrap around */ 232 case Ctrl_W: 233 case 'w': 234 /* cursor to previous window with wrap around */ 235 case 'W': 236 CHECK_CMDWIN 237 if (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_locked > 0) 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_locked > 0) 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 2291 && win->w_buffer->b_locked > 0)) 2292 return FAIL; /* window is already being closed */ 2293 if (win == aucmd_win) 2294 { 2295 EMSG(_("E813: Cannot close autocmd window")); 2296 return FAIL; 2297 } 2298 if ((firstwin == aucmd_win || lastwin == aucmd_win) && one_window()) 2299 { 2300 EMSG(_("E814: Cannot close window, only autocmd window would remain")); 2301 return FAIL; 2302 } 2303 #endif 2304 2305 /* When closing the last window in a tab page first go to another tab page 2306 * and then close the window and the tab page to avoid that curwin and 2307 * curtab are invalid while we are freeing memory. */ 2308 if (close_last_window_tabpage(win, free_buf, prev_curtab)) 2309 return FAIL; 2310 2311 /* When closing the help window, try restoring a snapshot after closing 2312 * the window. Otherwise clear the snapshot, it's now invalid. */ 2313 if (win->w_buffer != NULL && win->w_buffer->b_help) 2314 help_window = TRUE; 2315 else 2316 clear_snapshot(curtab, SNAP_HELP_IDX); 2317 2318 #ifdef FEAT_AUTOCMD 2319 if (win == curwin) 2320 { 2321 /* 2322 * Guess which window is going to be the new current window. 2323 * This may change because of the autocommands (sigh). 2324 */ 2325 wp = frame2win(win_altframe(win, NULL)); 2326 2327 /* 2328 * Be careful: If autocommands delete the window or cause this window 2329 * to be the last one left, return now. 2330 */ 2331 if (wp->w_buffer != curbuf) 2332 { 2333 other_buffer = TRUE; 2334 win->w_closing = TRUE; 2335 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 2336 if (!win_valid(win)) 2337 return FAIL; 2338 win->w_closing = FALSE; 2339 if (last_window()) 2340 return FAIL; 2341 } 2342 win->w_closing = TRUE; 2343 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 2344 if (!win_valid(win)) 2345 return FAIL; 2346 win->w_closing = FALSE; 2347 if (last_window()) 2348 return FAIL; 2349 # ifdef FEAT_EVAL 2350 /* autocmds may abort script processing */ 2351 if (aborting()) 2352 return FAIL; 2353 # endif 2354 } 2355 #endif 2356 2357 #ifdef FEAT_GUI 2358 /* Avoid trouble with scrollbars that are going to be deleted in 2359 * win_free(). */ 2360 if (gui.in_use) 2361 out_flush(); 2362 #endif 2363 2364 #ifdef FEAT_SYN_HL 2365 /* Free independent synblock before the buffer is freed. */ 2366 if (win->w_buffer != NULL) 2367 reset_synblock(win); 2368 #endif 2369 2370 /* 2371 * Close the link to the buffer. 2372 */ 2373 if (win->w_buffer != NULL) 2374 { 2375 bufref_T bufref; 2376 2377 set_bufref(&bufref, curbuf); 2378 #ifdef FEAT_AUTOCMD 2379 win->w_closing = TRUE; 2380 #endif 2381 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, TRUE); 2382 #ifdef FEAT_AUTOCMD 2383 if (win_valid_any_tab(win)) 2384 win->w_closing = FALSE; 2385 #endif 2386 /* Make sure curbuf is valid. It can become invalid if 'bufhidden' is 2387 * "wipe". */ 2388 if (!bufref_valid(&bufref)) 2389 curbuf = firstbuf; 2390 } 2391 2392 if (only_one_window() && win_valid(win) && win->w_buffer == NULL 2393 && (last_window() || curtab != prev_curtab 2394 || close_last_window_tabpage(win, free_buf, prev_curtab))) 2395 { 2396 /* Autocommands have close all windows, quit now. Restore 2397 * curwin->w_buffer, otherwise writing viminfo may fail. */ 2398 if (curwin->w_buffer == NULL) 2399 curwin->w_buffer = curbuf; 2400 getout(0); 2401 } 2402 2403 /* Autocommands may have moved to another tab page. */ 2404 if (curtab != prev_curtab && win_valid_any_tab(win) 2405 && win->w_buffer == NULL) 2406 { 2407 /* Need to close the window anyway, since the buffer is NULL. */ 2408 win_close_othertab(win, FALSE, prev_curtab); 2409 return FAIL; 2410 } 2411 2412 /* Autocommands may have closed the window already or closed the only 2413 * other window. */ 2414 if (!win_valid(win) || last_window() 2415 || close_last_window_tabpage(win, free_buf, prev_curtab)) 2416 return FAIL; 2417 2418 /* Free the memory used for the window and get the window that received 2419 * the screen space. */ 2420 wp = win_free_mem(win, &dir, NULL); 2421 2422 /* Make sure curwin isn't invalid. It can cause severe trouble when 2423 * printing an error message. For win_equal() curbuf needs to be valid 2424 * too. */ 2425 if (win == curwin) 2426 { 2427 curwin = wp; 2428 #ifdef FEAT_QUICKFIX 2429 if (wp->w_p_pvw || bt_quickfix(wp->w_buffer)) 2430 { 2431 /* 2432 * If the cursor goes to the preview or the quickfix window, try 2433 * finding another window to go to. 2434 */ 2435 for (;;) 2436 { 2437 if (wp->w_next == NULL) 2438 wp = firstwin; 2439 else 2440 wp = wp->w_next; 2441 if (wp == curwin) 2442 break; 2443 if (!wp->w_p_pvw && !bt_quickfix(wp->w_buffer)) 2444 { 2445 curwin = wp; 2446 break; 2447 } 2448 } 2449 } 2450 #endif 2451 curbuf = curwin->w_buffer; 2452 close_curwin = TRUE; 2453 } 2454 if (p_ea && (*p_ead == 'b' || *p_ead == dir)) 2455 win_equal(curwin, TRUE, dir); 2456 else 2457 win_comp_pos(); 2458 if (close_curwin) 2459 { 2460 win_enter_ext(wp, FALSE, TRUE, FALSE, TRUE, TRUE); 2461 #ifdef FEAT_AUTOCMD 2462 if (other_buffer) 2463 /* careful: after this wp and win may be invalid! */ 2464 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2465 #endif 2466 } 2467 2468 /* 2469 * If last window has a status line now and we don't want one, 2470 * remove the status line. 2471 */ 2472 last_status(FALSE); 2473 2474 /* After closing the help window, try restoring the window layout from 2475 * before it was opened. */ 2476 if (help_window) 2477 restore_snapshot(SNAP_HELP_IDX, close_curwin); 2478 2479 #if defined(FEAT_GUI) 2480 /* When 'guioptions' includes 'L' or 'R' may have to remove scrollbars. */ 2481 if (gui.in_use && !win_hasvertsplit()) 2482 gui_init_which_components(NULL); 2483 #endif 2484 2485 redraw_all_later(NOT_VALID); 2486 return OK; 2487 } 2488 2489 /* 2490 * Close window "win" in tab page "tp", which is not the current tab page. 2491 * This may be the last window in that tab page and result in closing the tab, 2492 * thus "tp" may become invalid! 2493 * Caller must check if buffer is hidden and whether the tabline needs to be 2494 * updated. 2495 */ 2496 void 2497 win_close_othertab(win_T *win, int free_buf, tabpage_T *tp) 2498 { 2499 win_T *wp; 2500 int dir; 2501 tabpage_T *ptp = NULL; 2502 int free_tp = FALSE; 2503 2504 #ifdef FEAT_AUTOCMD 2505 /* Get here with win->w_buffer == NULL when win_close() detects the tab 2506 * page changed. */ 2507 if (win->w_closing || (win->w_buffer != NULL 2508 && win->w_buffer->b_locked > 0)) 2509 return; /* window is already being closed */ 2510 #endif 2511 2512 if (win->w_buffer != NULL) 2513 /* Close the link to the buffer. */ 2514 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, FALSE); 2515 2516 /* Careful: Autocommands may have closed the tab page or made it the 2517 * current tab page. */ 2518 for (ptp = first_tabpage; ptp != NULL && ptp != tp; ptp = ptp->tp_next) 2519 ; 2520 if (ptp == NULL || tp == curtab) 2521 return; 2522 2523 /* Autocommands may have closed the window already. */ 2524 for (wp = tp->tp_firstwin; wp != NULL && wp != win; wp = wp->w_next) 2525 ; 2526 if (wp == NULL) 2527 return; 2528 2529 /* When closing the last window in a tab page remove the tab page. */ 2530 if (tp->tp_firstwin == tp->tp_lastwin) 2531 { 2532 if (tp == first_tabpage) 2533 first_tabpage = tp->tp_next; 2534 else 2535 { 2536 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tp; 2537 ptp = ptp->tp_next) 2538 ; 2539 if (ptp == NULL) 2540 { 2541 EMSG2(_(e_intern2), "win_close_othertab()"); 2542 return; 2543 } 2544 ptp->tp_next = tp->tp_next; 2545 } 2546 free_tp = TRUE; 2547 } 2548 2549 /* Free the memory used for the window. */ 2550 win_free_mem(win, &dir, tp); 2551 2552 if (free_tp) 2553 free_tabpage(tp); 2554 } 2555 2556 /* 2557 * Free the memory used for a window. 2558 * Returns a pointer to the window that got the freed up space. 2559 */ 2560 static win_T * 2561 win_free_mem( 2562 win_T *win, 2563 int *dirp, /* set to 'v' or 'h' for direction if 'ea' */ 2564 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 2565 { 2566 frame_T *frp; 2567 win_T *wp; 2568 2569 /* Remove the window and its frame from the tree of frames. */ 2570 frp = win->w_frame; 2571 wp = winframe_remove(win, dirp, tp); 2572 vim_free(frp); 2573 win_free(win, tp); 2574 2575 /* When deleting the current window of another tab page select a new 2576 * current window. */ 2577 if (tp != NULL && win == tp->tp_curwin) 2578 tp->tp_curwin = wp; 2579 2580 return wp; 2581 } 2582 2583 #if defined(EXITFREE) || defined(PROTO) 2584 void 2585 win_free_all(void) 2586 { 2587 int dummy; 2588 2589 # ifdef FEAT_WINDOWS 2590 while (first_tabpage->tp_next != NULL) 2591 tabpage_close(TRUE); 2592 # endif 2593 2594 # ifdef FEAT_AUTOCMD 2595 if (aucmd_win != NULL) 2596 { 2597 (void)win_free_mem(aucmd_win, &dummy, NULL); 2598 aucmd_win = NULL; 2599 } 2600 # endif 2601 2602 while (firstwin != NULL) 2603 (void)win_free_mem(firstwin, &dummy, NULL); 2604 2605 /* No window should be used after this. Set curwin to NULL to crash 2606 * instead of using freed memory. */ 2607 curwin = NULL; 2608 } 2609 #endif 2610 2611 /* 2612 * Remove a window and its frame from the tree of frames. 2613 * Returns a pointer to the window that got the freed up space. 2614 */ 2615 win_T * 2616 winframe_remove( 2617 win_T *win, 2618 int *dirp UNUSED, /* set to 'v' or 'h' for direction if 'ea' */ 2619 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 2620 { 2621 frame_T *frp, *frp2, *frp3; 2622 frame_T *frp_close = win->w_frame; 2623 win_T *wp; 2624 2625 /* 2626 * If there is only one window there is nothing to remove. 2627 */ 2628 if (tp == NULL ? firstwin == lastwin : tp->tp_firstwin == tp->tp_lastwin) 2629 return NULL; 2630 2631 /* 2632 * Remove the window from its frame. 2633 */ 2634 frp2 = win_altframe(win, tp); 2635 wp = frame2win(frp2); 2636 2637 /* Remove this frame from the list of frames. */ 2638 frame_remove(frp_close); 2639 2640 if (frp_close->fr_parent->fr_layout == FR_COL) 2641 { 2642 /* When 'winfixheight' is set, try to find another frame in the column 2643 * (as close to the closed frame as possible) to distribute the height 2644 * to. */ 2645 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfh) 2646 { 2647 frp = frp_close->fr_prev; 2648 frp3 = frp_close->fr_next; 2649 while (frp != NULL || frp3 != NULL) 2650 { 2651 if (frp != NULL) 2652 { 2653 if (frp->fr_win != NULL && !frp->fr_win->w_p_wfh) 2654 { 2655 frp2 = frp; 2656 wp = frp->fr_win; 2657 break; 2658 } 2659 frp = frp->fr_prev; 2660 } 2661 if (frp3 != NULL) 2662 { 2663 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfh) 2664 { 2665 frp2 = frp3; 2666 wp = frp3->fr_win; 2667 break; 2668 } 2669 frp3 = frp3->fr_next; 2670 } 2671 } 2672 } 2673 frame_new_height(frp2, frp2->fr_height + frp_close->fr_height, 2674 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2675 *dirp = 'v'; 2676 } 2677 else 2678 { 2679 /* When 'winfixwidth' is set, try to find another frame in the column 2680 * (as close to the closed frame as possible) to distribute the width 2681 * to. */ 2682 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfw) 2683 { 2684 frp = frp_close->fr_prev; 2685 frp3 = frp_close->fr_next; 2686 while (frp != NULL || frp3 != NULL) 2687 { 2688 if (frp != NULL) 2689 { 2690 if (frp->fr_win != NULL && !frp->fr_win->w_p_wfw) 2691 { 2692 frp2 = frp; 2693 wp = frp->fr_win; 2694 break; 2695 } 2696 frp = frp->fr_prev; 2697 } 2698 if (frp3 != NULL) 2699 { 2700 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfw) 2701 { 2702 frp2 = frp3; 2703 wp = frp3->fr_win; 2704 break; 2705 } 2706 frp3 = frp3->fr_next; 2707 } 2708 } 2709 } 2710 frame_new_width(frp2, frp2->fr_width + frp_close->fr_width, 2711 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2712 *dirp = 'h'; 2713 } 2714 2715 /* If rows/columns go to a window below/right its positions need to be 2716 * updated. Can only be done after the sizes have been updated. */ 2717 if (frp2 == frp_close->fr_next) 2718 { 2719 int row = win->w_winrow; 2720 int col = W_WINCOL(win); 2721 2722 frame_comp_pos(frp2, &row, &col); 2723 } 2724 2725 if (frp2->fr_next == NULL && frp2->fr_prev == NULL) 2726 { 2727 /* There is no other frame in this list, move its info to the parent 2728 * and remove it. */ 2729 frp2->fr_parent->fr_layout = frp2->fr_layout; 2730 frp2->fr_parent->fr_child = frp2->fr_child; 2731 for (frp = frp2->fr_child; frp != NULL; frp = frp->fr_next) 2732 frp->fr_parent = frp2->fr_parent; 2733 frp2->fr_parent->fr_win = frp2->fr_win; 2734 if (frp2->fr_win != NULL) 2735 frp2->fr_win->w_frame = frp2->fr_parent; 2736 frp = frp2->fr_parent; 2737 vim_free(frp2); 2738 2739 frp2 = frp->fr_parent; 2740 if (frp2 != NULL && frp2->fr_layout == frp->fr_layout) 2741 { 2742 /* The frame above the parent has the same layout, have to merge 2743 * the frames into this list. */ 2744 if (frp2->fr_child == frp) 2745 frp2->fr_child = frp->fr_child; 2746 frp->fr_child->fr_prev = frp->fr_prev; 2747 if (frp->fr_prev != NULL) 2748 frp->fr_prev->fr_next = frp->fr_child; 2749 for (frp3 = frp->fr_child; ; frp3 = frp3->fr_next) 2750 { 2751 frp3->fr_parent = frp2; 2752 if (frp3->fr_next == NULL) 2753 { 2754 frp3->fr_next = frp->fr_next; 2755 if (frp->fr_next != NULL) 2756 frp->fr_next->fr_prev = frp3; 2757 break; 2758 } 2759 } 2760 vim_free(frp); 2761 } 2762 } 2763 2764 return wp; 2765 } 2766 2767 /* 2768 * Find out which frame is going to get the freed up space when "win" is 2769 * closed. 2770 * if 'splitbelow'/'splitleft' the space goes to the window above/left. 2771 * if 'nosplitbelow'/'nosplitleft' the space goes to the window below/right. 2772 * This makes opening a window and closing it immediately keep the same window 2773 * layout. 2774 */ 2775 static frame_T * 2776 win_altframe( 2777 win_T *win, 2778 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 2779 { 2780 frame_T *frp; 2781 int b; 2782 2783 if (tp == NULL ? firstwin == lastwin : tp->tp_firstwin == tp->tp_lastwin) 2784 /* Last window in this tab page, will go to next tab page. */ 2785 return alt_tabpage()->tp_curwin->w_frame; 2786 2787 frp = win->w_frame; 2788 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW) 2789 b = p_spr; 2790 else 2791 b = p_sb; 2792 if ((!b && frp->fr_next != NULL) || frp->fr_prev == NULL) 2793 return frp->fr_next; 2794 return frp->fr_prev; 2795 } 2796 2797 /* 2798 * Return the tabpage that will be used if the current one is closed. 2799 */ 2800 static tabpage_T * 2801 alt_tabpage(void) 2802 { 2803 tabpage_T *tp; 2804 2805 /* Use the next tab page if possible. */ 2806 if (curtab->tp_next != NULL) 2807 return curtab->tp_next; 2808 2809 /* Find the last but one tab page. */ 2810 for (tp = first_tabpage; tp->tp_next != curtab; tp = tp->tp_next) 2811 ; 2812 return tp; 2813 } 2814 2815 /* 2816 * Find the left-upper window in frame "frp". 2817 */ 2818 static win_T * 2819 frame2win(frame_T *frp) 2820 { 2821 while (frp->fr_win == NULL) 2822 frp = frp->fr_child; 2823 return frp->fr_win; 2824 } 2825 2826 /* 2827 * Return TRUE if frame "frp" contains window "wp". 2828 */ 2829 static int 2830 frame_has_win(frame_T *frp, win_T *wp) 2831 { 2832 frame_T *p; 2833 2834 if (frp->fr_layout == FR_LEAF) 2835 return frp->fr_win == wp; 2836 2837 for (p = frp->fr_child; p != NULL; p = p->fr_next) 2838 if (frame_has_win(p, wp)) 2839 return TRUE; 2840 return FALSE; 2841 } 2842 2843 /* 2844 * Set a new height for a frame. Recursively sets the height for contained 2845 * frames and windows. Caller must take care of positions. 2846 */ 2847 static void 2848 frame_new_height( 2849 frame_T *topfrp, 2850 int height, 2851 int topfirst, /* resize topmost contained frame first */ 2852 int wfh) /* obey 'winfixheight' when there is a choice; 2853 may cause the height not to be set */ 2854 { 2855 frame_T *frp; 2856 int extra_lines; 2857 int h; 2858 2859 if (topfrp->fr_win != NULL) 2860 { 2861 /* Simple case: just one window. */ 2862 win_new_height(topfrp->fr_win, 2863 height - topfrp->fr_win->w_status_height); 2864 } 2865 else if (topfrp->fr_layout == FR_ROW) 2866 { 2867 do 2868 { 2869 /* All frames in this row get the same new height. */ 2870 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 2871 { 2872 frame_new_height(frp, height, topfirst, wfh); 2873 if (frp->fr_height > height) 2874 { 2875 /* Could not fit the windows, make the whole row higher. */ 2876 height = frp->fr_height; 2877 break; 2878 } 2879 } 2880 } 2881 while (frp != NULL); 2882 } 2883 else /* fr_layout == FR_COL */ 2884 { 2885 /* Complicated case: Resize a column of frames. Resize the bottom 2886 * frame first, frames above that when needed. */ 2887 2888 frp = topfrp->fr_child; 2889 if (wfh) 2890 /* Advance past frames with one window with 'wfh' set. */ 2891 while (frame_fixed_height(frp)) 2892 { 2893 frp = frp->fr_next; 2894 if (frp == NULL) 2895 return; /* no frame without 'wfh', give up */ 2896 } 2897 if (!topfirst) 2898 { 2899 /* Find the bottom frame of this column */ 2900 while (frp->fr_next != NULL) 2901 frp = frp->fr_next; 2902 if (wfh) 2903 /* Advance back for frames with one window with 'wfh' set. */ 2904 while (frame_fixed_height(frp)) 2905 frp = frp->fr_prev; 2906 } 2907 2908 extra_lines = height - topfrp->fr_height; 2909 if (extra_lines < 0) 2910 { 2911 /* reduce height of contained frames, bottom or top frame first */ 2912 while (frp != NULL) 2913 { 2914 h = frame_minheight(frp, NULL); 2915 if (frp->fr_height + extra_lines < h) 2916 { 2917 extra_lines += frp->fr_height - h; 2918 frame_new_height(frp, h, topfirst, wfh); 2919 } 2920 else 2921 { 2922 frame_new_height(frp, frp->fr_height + extra_lines, 2923 topfirst, wfh); 2924 break; 2925 } 2926 if (topfirst) 2927 { 2928 do 2929 frp = frp->fr_next; 2930 while (wfh && frp != NULL && frame_fixed_height(frp)); 2931 } 2932 else 2933 { 2934 do 2935 frp = frp->fr_prev; 2936 while (wfh && frp != NULL && frame_fixed_height(frp)); 2937 } 2938 /* Increase "height" if we could not reduce enough frames. */ 2939 if (frp == NULL) 2940 height -= extra_lines; 2941 } 2942 } 2943 else if (extra_lines > 0) 2944 { 2945 /* increase height of bottom or top frame */ 2946 frame_new_height(frp, frp->fr_height + extra_lines, topfirst, wfh); 2947 } 2948 } 2949 topfrp->fr_height = height; 2950 } 2951 2952 /* 2953 * Return TRUE if height of frame "frp" should not be changed because of 2954 * the 'winfixheight' option. 2955 */ 2956 static int 2957 frame_fixed_height(frame_T *frp) 2958 { 2959 /* frame with one window: fixed height if 'winfixheight' set. */ 2960 if (frp->fr_win != NULL) 2961 return frp->fr_win->w_p_wfh; 2962 2963 if (frp->fr_layout == FR_ROW) 2964 { 2965 /* The frame is fixed height if one of the frames in the row is fixed 2966 * height. */ 2967 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2968 if (frame_fixed_height(frp)) 2969 return TRUE; 2970 return FALSE; 2971 } 2972 2973 /* frp->fr_layout == FR_COL: The frame is fixed height if all of the 2974 * frames in the row are fixed height. */ 2975 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2976 if (!frame_fixed_height(frp)) 2977 return FALSE; 2978 return TRUE; 2979 } 2980 2981 /* 2982 * Return TRUE if width of frame "frp" should not be changed because of 2983 * the 'winfixwidth' option. 2984 */ 2985 static int 2986 frame_fixed_width(frame_T *frp) 2987 { 2988 /* frame with one window: fixed width if 'winfixwidth' set. */ 2989 if (frp->fr_win != NULL) 2990 return frp->fr_win->w_p_wfw; 2991 2992 if (frp->fr_layout == FR_COL) 2993 { 2994 /* The frame is fixed width if one of the frames in the row is fixed 2995 * width. */ 2996 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2997 if (frame_fixed_width(frp)) 2998 return TRUE; 2999 return FALSE; 3000 } 3001 3002 /* frp->fr_layout == FR_ROW: The frame is fixed width if all of the 3003 * frames in the row are fixed width. */ 3004 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 3005 if (!frame_fixed_width(frp)) 3006 return FALSE; 3007 return TRUE; 3008 } 3009 3010 /* 3011 * Add a status line to windows at the bottom of "frp". 3012 * Note: Does not check if there is room! 3013 */ 3014 static void 3015 frame_add_statusline(frame_T *frp) 3016 { 3017 win_T *wp; 3018 3019 if (frp->fr_layout == FR_LEAF) 3020 { 3021 wp = frp->fr_win; 3022 if (wp->w_status_height == 0) 3023 { 3024 if (wp->w_height > 0) /* don't make it negative */ 3025 --wp->w_height; 3026 wp->w_status_height = STATUS_HEIGHT; 3027 } 3028 } 3029 else if (frp->fr_layout == FR_ROW) 3030 { 3031 /* Handle all the frames in the row. */ 3032 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 3033 frame_add_statusline(frp); 3034 } 3035 else /* frp->fr_layout == FR_COL */ 3036 { 3037 /* Only need to handle the last frame in the column. */ 3038 for (frp = frp->fr_child; frp->fr_next != NULL; frp = frp->fr_next) 3039 ; 3040 frame_add_statusline(frp); 3041 } 3042 } 3043 3044 /* 3045 * Set width of a frame. Handles recursively going through contained frames. 3046 * May remove separator line for windows at the right side (for win_close()). 3047 */ 3048 static void 3049 frame_new_width( 3050 frame_T *topfrp, 3051 int width, 3052 int leftfirst, /* resize leftmost contained frame first */ 3053 int wfw) /* obey 'winfixwidth' when there is a choice; 3054 may cause the width not to be set */ 3055 { 3056 frame_T *frp; 3057 int extra_cols; 3058 int w; 3059 win_T *wp; 3060 3061 if (topfrp->fr_layout == FR_LEAF) 3062 { 3063 /* Simple case: just one window. */ 3064 wp = topfrp->fr_win; 3065 /* Find out if there are any windows right of this one. */ 3066 for (frp = topfrp; frp->fr_parent != NULL; frp = frp->fr_parent) 3067 if (frp->fr_parent->fr_layout == FR_ROW && frp->fr_next != NULL) 3068 break; 3069 if (frp->fr_parent == NULL) 3070 wp->w_vsep_width = 0; 3071 win_new_width(wp, width - wp->w_vsep_width); 3072 } 3073 else if (topfrp->fr_layout == FR_COL) 3074 { 3075 do 3076 { 3077 /* All frames in this column get the same new width. */ 3078 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3079 { 3080 frame_new_width(frp, width, leftfirst, wfw); 3081 if (frp->fr_width > width) 3082 { 3083 /* Could not fit the windows, make whole column wider. */ 3084 width = frp->fr_width; 3085 break; 3086 } 3087 } 3088 } while (frp != NULL); 3089 } 3090 else /* fr_layout == FR_ROW */ 3091 { 3092 /* Complicated case: Resize a row of frames. Resize the rightmost 3093 * frame first, frames left of it when needed. */ 3094 3095 frp = topfrp->fr_child; 3096 if (wfw) 3097 /* Advance past frames with one window with 'wfw' set. */ 3098 while (frame_fixed_width(frp)) 3099 { 3100 frp = frp->fr_next; 3101 if (frp == NULL) 3102 return; /* no frame without 'wfw', give up */ 3103 } 3104 if (!leftfirst) 3105 { 3106 /* Find the rightmost frame of this row */ 3107 while (frp->fr_next != NULL) 3108 frp = frp->fr_next; 3109 if (wfw) 3110 /* Advance back for frames with one window with 'wfw' set. */ 3111 while (frame_fixed_width(frp)) 3112 frp = frp->fr_prev; 3113 } 3114 3115 extra_cols = width - topfrp->fr_width; 3116 if (extra_cols < 0) 3117 { 3118 /* reduce frame width, rightmost frame first */ 3119 while (frp != NULL) 3120 { 3121 w = frame_minwidth(frp, NULL); 3122 if (frp->fr_width + extra_cols < w) 3123 { 3124 extra_cols += frp->fr_width - w; 3125 frame_new_width(frp, w, leftfirst, wfw); 3126 } 3127 else 3128 { 3129 frame_new_width(frp, frp->fr_width + extra_cols, 3130 leftfirst, wfw); 3131 break; 3132 } 3133 if (leftfirst) 3134 { 3135 do 3136 frp = frp->fr_next; 3137 while (wfw && frp != NULL && frame_fixed_width(frp)); 3138 } 3139 else 3140 { 3141 do 3142 frp = frp->fr_prev; 3143 while (wfw && frp != NULL && frame_fixed_width(frp)); 3144 } 3145 /* Increase "width" if we could not reduce enough frames. */ 3146 if (frp == NULL) 3147 width -= extra_cols; 3148 } 3149 } 3150 else if (extra_cols > 0) 3151 { 3152 /* increase width of rightmost frame */ 3153 frame_new_width(frp, frp->fr_width + extra_cols, leftfirst, wfw); 3154 } 3155 } 3156 topfrp->fr_width = width; 3157 } 3158 3159 /* 3160 * Add the vertical separator to windows at the right side of "frp". 3161 * Note: Does not check if there is room! 3162 */ 3163 static void 3164 frame_add_vsep(frame_T *frp) 3165 { 3166 win_T *wp; 3167 3168 if (frp->fr_layout == FR_LEAF) 3169 { 3170 wp = frp->fr_win; 3171 if (wp->w_vsep_width == 0) 3172 { 3173 if (wp->w_width > 0) /* don't make it negative */ 3174 --wp->w_width; 3175 wp->w_vsep_width = 1; 3176 } 3177 } 3178 else if (frp->fr_layout == FR_COL) 3179 { 3180 /* Handle all the frames in the column. */ 3181 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 3182 frame_add_vsep(frp); 3183 } 3184 else /* frp->fr_layout == FR_ROW */ 3185 { 3186 /* Only need to handle the last frame in the row. */ 3187 frp = frp->fr_child; 3188 while (frp->fr_next != NULL) 3189 frp = frp->fr_next; 3190 frame_add_vsep(frp); 3191 } 3192 } 3193 3194 /* 3195 * Set frame width from the window it contains. 3196 */ 3197 static void 3198 frame_fix_width(win_T *wp) 3199 { 3200 wp->w_frame->fr_width = wp->w_width + wp->w_vsep_width; 3201 } 3202 3203 /* 3204 * Set frame height from the window it contains. 3205 */ 3206 static void 3207 frame_fix_height(win_T *wp) 3208 { 3209 wp->w_frame->fr_height = wp->w_height + wp->w_status_height; 3210 } 3211 3212 /* 3213 * Compute the minimal height for frame "topfrp". 3214 * Uses the 'winminheight' option. 3215 * When "next_curwin" isn't NULL, use p_wh for this window. 3216 * When "next_curwin" is NOWIN, don't use at least one line for the current 3217 * window. 3218 */ 3219 static int 3220 frame_minheight(frame_T *topfrp, win_T *next_curwin) 3221 { 3222 frame_T *frp; 3223 int m; 3224 int n; 3225 3226 if (topfrp->fr_win != NULL) 3227 { 3228 if (topfrp->fr_win == next_curwin) 3229 m = p_wh + topfrp->fr_win->w_status_height; 3230 else 3231 { 3232 /* window: minimal height of the window plus status line */ 3233 m = p_wmh + topfrp->fr_win->w_status_height; 3234 /* Current window is minimal one line high */ 3235 if (p_wmh == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3236 ++m; 3237 } 3238 } 3239 else if (topfrp->fr_layout == FR_ROW) 3240 { 3241 /* get the minimal height from each frame in this row */ 3242 m = 0; 3243 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3244 { 3245 n = frame_minheight(frp, next_curwin); 3246 if (n > m) 3247 m = n; 3248 } 3249 } 3250 else 3251 { 3252 /* Add up the minimal heights for all frames in this column. */ 3253 m = 0; 3254 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3255 m += frame_minheight(frp, next_curwin); 3256 } 3257 3258 return m; 3259 } 3260 3261 /* 3262 * Compute the minimal width for frame "topfrp". 3263 * When "next_curwin" isn't NULL, use p_wiw for this window. 3264 * When "next_curwin" is NOWIN, don't use at least one column for the current 3265 * window. 3266 */ 3267 static int 3268 frame_minwidth( 3269 frame_T *topfrp, 3270 win_T *next_curwin) /* use p_wh and p_wiw for next_curwin */ 3271 { 3272 frame_T *frp; 3273 int m, n; 3274 3275 if (topfrp->fr_win != NULL) 3276 { 3277 if (topfrp->fr_win == next_curwin) 3278 m = p_wiw + topfrp->fr_win->w_vsep_width; 3279 else 3280 { 3281 /* window: minimal width of the window plus separator column */ 3282 m = p_wmw + topfrp->fr_win->w_vsep_width; 3283 /* Current window is minimal one column wide */ 3284 if (p_wmw == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3285 ++m; 3286 } 3287 } 3288 else if (topfrp->fr_layout == FR_COL) 3289 { 3290 /* get the minimal width from each frame in this column */ 3291 m = 0; 3292 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3293 { 3294 n = frame_minwidth(frp, next_curwin); 3295 if (n > m) 3296 m = n; 3297 } 3298 } 3299 else 3300 { 3301 /* Add up the minimal widths for all frames in this row. */ 3302 m = 0; 3303 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3304 m += frame_minwidth(frp, next_curwin); 3305 } 3306 3307 return m; 3308 } 3309 3310 3311 /* 3312 * Try to close all windows except current one. 3313 * Buffers in the other windows become hidden if 'hidden' is set, or '!' is 3314 * used and the buffer was modified. 3315 * 3316 * Used by ":bdel" and ":only". 3317 */ 3318 void 3319 close_others( 3320 int message, 3321 int forceit) /* always hide all other windows */ 3322 { 3323 win_T *wp; 3324 win_T *nextwp; 3325 int r; 3326 3327 if (one_window()) 3328 { 3329 if (message 3330 #ifdef FEAT_AUTOCMD 3331 && !autocmd_busy 3332 #endif 3333 ) 3334 MSG(_(m_onlyone)); 3335 return; 3336 } 3337 3338 /* Be very careful here: autocommands may change the window layout. */ 3339 for (wp = firstwin; win_valid(wp); wp = nextwp) 3340 { 3341 nextwp = wp->w_next; 3342 if (wp != curwin) /* don't close current window */ 3343 { 3344 3345 /* Check if it's allowed to abandon this window */ 3346 r = can_abandon(wp->w_buffer, forceit); 3347 #ifdef FEAT_AUTOCMD 3348 if (!win_valid(wp)) /* autocommands messed wp up */ 3349 { 3350 nextwp = firstwin; 3351 continue; 3352 } 3353 #endif 3354 if (!r) 3355 { 3356 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 3357 if (message && (p_confirm || cmdmod.confirm) && p_write) 3358 { 3359 dialog_changed(wp->w_buffer, FALSE); 3360 # ifdef FEAT_AUTOCMD 3361 if (!win_valid(wp)) /* autocommands messed wp up */ 3362 { 3363 nextwp = firstwin; 3364 continue; 3365 } 3366 # endif 3367 } 3368 if (bufIsChanged(wp->w_buffer)) 3369 #endif 3370 continue; 3371 } 3372 win_close(wp, !P_HID(wp->w_buffer) && !bufIsChanged(wp->w_buffer)); 3373 } 3374 } 3375 3376 if (message && lastwin != firstwin) 3377 EMSG(_("E445: Other window contains changes")); 3378 } 3379 3380 #endif /* FEAT_WINDOWS */ 3381 3382 /* 3383 * Init the current window "curwin". 3384 * Called when a new file is being edited. 3385 */ 3386 void 3387 curwin_init(void) 3388 { 3389 win_init_empty(curwin); 3390 } 3391 3392 void 3393 win_init_empty(win_T *wp) 3394 { 3395 redraw_win_later(wp, NOT_VALID); 3396 wp->w_lines_valid = 0; 3397 wp->w_cursor.lnum = 1; 3398 wp->w_curswant = wp->w_cursor.col = 0; 3399 #ifdef FEAT_VIRTUALEDIT 3400 wp->w_cursor.coladd = 0; 3401 #endif 3402 wp->w_pcmark.lnum = 1; /* pcmark not cleared but set to line 1 */ 3403 wp->w_pcmark.col = 0; 3404 wp->w_prev_pcmark.lnum = 0; 3405 wp->w_prev_pcmark.col = 0; 3406 wp->w_topline = 1; 3407 #ifdef FEAT_DIFF 3408 wp->w_topfill = 0; 3409 #endif 3410 wp->w_botline = 2; 3411 #ifdef FEAT_FKMAP 3412 if (wp->w_p_rl) 3413 wp->w_farsi = W_CONV + W_R_L; 3414 else 3415 wp->w_farsi = W_CONV; 3416 #endif 3417 #ifdef FEAT_SYN_HL 3418 wp->w_s = &wp->w_buffer->b_s; 3419 #endif 3420 } 3421 3422 /* 3423 * Allocate the first window and put an empty buffer in it. 3424 * Called from main(). 3425 * Return FAIL when something goes wrong (out of memory). 3426 */ 3427 int 3428 win_alloc_first(void) 3429 { 3430 if (win_alloc_firstwin(NULL) == FAIL) 3431 return FAIL; 3432 3433 #ifdef FEAT_WINDOWS 3434 first_tabpage = alloc_tabpage(); 3435 if (first_tabpage == NULL) 3436 return FAIL; 3437 first_tabpage->tp_topframe = topframe; 3438 curtab = first_tabpage; 3439 #endif 3440 3441 return OK; 3442 } 3443 3444 #if defined(FEAT_AUTOCMD) || defined(PROTO) 3445 /* 3446 * Init "aucmd_win". This can only be done after the first 3447 * window is fully initialized, thus it can't be in win_alloc_first(). 3448 */ 3449 void 3450 win_alloc_aucmd_win(void) 3451 { 3452 aucmd_win = win_alloc(NULL, TRUE); 3453 if (aucmd_win != NULL) 3454 { 3455 win_init_some(aucmd_win, curwin); 3456 RESET_BINDING(aucmd_win); 3457 new_frame(aucmd_win); 3458 } 3459 } 3460 #endif 3461 3462 /* 3463 * Allocate the first window or the first window in a new tab page. 3464 * When "oldwin" is NULL create an empty buffer for it. 3465 * When "oldwin" is not NULL copy info from it to the new window (only with 3466 * FEAT_WINDOWS). 3467 * Return FAIL when something goes wrong (out of memory). 3468 */ 3469 static int 3470 win_alloc_firstwin(win_T *oldwin) 3471 { 3472 curwin = win_alloc(NULL, FALSE); 3473 if (oldwin == NULL) 3474 { 3475 /* Very first window, need to create an empty buffer for it and 3476 * initialize from scratch. */ 3477 curbuf = buflist_new(NULL, NULL, 1L, BLN_LISTED); 3478 if (curwin == NULL || curbuf == NULL) 3479 return FAIL; 3480 curwin->w_buffer = curbuf; 3481 #ifdef FEAT_SYN_HL 3482 curwin->w_s = &(curbuf->b_s); 3483 #endif 3484 curbuf->b_nwindows = 1; /* there is one window */ 3485 #ifdef FEAT_WINDOWS 3486 curwin->w_alist = &global_alist; 3487 #endif 3488 curwin_init(); /* init current window */ 3489 } 3490 #ifdef FEAT_WINDOWS 3491 else 3492 { 3493 /* First window in new tab page, initialize it from "oldwin". */ 3494 win_init(curwin, oldwin, 0); 3495 3496 /* We don't want cursor- and scroll-binding in the first window. */ 3497 RESET_BINDING(curwin); 3498 } 3499 #endif 3500 3501 new_frame(curwin); 3502 if (curwin->w_frame == NULL) 3503 return FAIL; 3504 topframe = curwin->w_frame; 3505 #ifdef FEAT_WINDOWS 3506 topframe->fr_width = Columns; 3507 #endif 3508 topframe->fr_height = Rows - p_ch; 3509 topframe->fr_win = curwin; 3510 3511 return OK; 3512 } 3513 3514 /* 3515 * Create a frame for window "wp". 3516 */ 3517 static void 3518 new_frame(win_T *wp) 3519 { 3520 frame_T *frp = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); 3521 3522 wp->w_frame = frp; 3523 if (frp != NULL) 3524 { 3525 frp->fr_layout = FR_LEAF; 3526 frp->fr_win = wp; 3527 } 3528 } 3529 3530 /* 3531 * Initialize the window and frame size to the maximum. 3532 */ 3533 void 3534 win_init_size(void) 3535 { 3536 firstwin->w_height = ROWS_AVAIL; 3537 topframe->fr_height = ROWS_AVAIL; 3538 #ifdef FEAT_WINDOWS 3539 firstwin->w_width = Columns; 3540 topframe->fr_width = Columns; 3541 #endif 3542 } 3543 3544 #if defined(FEAT_WINDOWS) || defined(PROTO) 3545 3546 /* 3547 * Allocate a new tabpage_T and init the values. 3548 * Returns NULL when out of memory. 3549 */ 3550 static tabpage_T * 3551 alloc_tabpage(void) 3552 { 3553 tabpage_T *tp; 3554 # ifdef FEAT_GUI 3555 int i; 3556 # endif 3557 3558 3559 tp = (tabpage_T *)alloc_clear((unsigned)sizeof(tabpage_T)); 3560 if (tp == NULL) 3561 return NULL; 3562 3563 # ifdef FEAT_EVAL 3564 /* init t: variables */ 3565 tp->tp_vars = dict_alloc(); 3566 if (tp->tp_vars == NULL) 3567 { 3568 vim_free(tp); 3569 return NULL; 3570 } 3571 init_var_dict(tp->tp_vars, &tp->tp_winvar, VAR_SCOPE); 3572 # endif 3573 3574 # ifdef FEAT_GUI 3575 for (i = 0; i < 3; i++) 3576 tp->tp_prev_which_scrollbars[i] = -1; 3577 # endif 3578 # ifdef FEAT_DIFF 3579 tp->tp_diff_invalid = TRUE; 3580 # endif 3581 tp->tp_ch_used = p_ch; 3582 3583 return tp; 3584 } 3585 3586 void 3587 free_tabpage(tabpage_T *tp) 3588 { 3589 int idx; 3590 3591 # ifdef FEAT_DIFF 3592 diff_clear(tp); 3593 # endif 3594 for (idx = 0; idx < SNAP_COUNT; ++idx) 3595 clear_snapshot(tp, idx); 3596 #ifdef FEAT_EVAL 3597 vars_clear(&tp->tp_vars->dv_hashtab); /* free all t: variables */ 3598 hash_init(&tp->tp_vars->dv_hashtab); 3599 unref_var_dict(tp->tp_vars); 3600 #endif 3601 3602 #ifdef FEAT_PYTHON 3603 python_tabpage_free(tp); 3604 #endif 3605 3606 #ifdef FEAT_PYTHON3 3607 python3_tabpage_free(tp); 3608 #endif 3609 3610 vim_free(tp); 3611 } 3612 3613 /* 3614 * Create a new Tab page with one window. 3615 * It will edit the current buffer, like after ":split". 3616 * When "after" is 0 put it just after the current Tab page. 3617 * Otherwise put it just before tab page "after". 3618 * Return FAIL or OK. 3619 */ 3620 int 3621 win_new_tabpage(int after) 3622 { 3623 tabpage_T *tp = curtab; 3624 tabpage_T *newtp; 3625 int n; 3626 3627 newtp = alloc_tabpage(); 3628 if (newtp == NULL) 3629 return FAIL; 3630 3631 /* Remember the current windows in this Tab page. */ 3632 if (leave_tabpage(curbuf, TRUE) == FAIL) 3633 { 3634 vim_free(newtp); 3635 return FAIL; 3636 } 3637 curtab = newtp; 3638 3639 /* Create a new empty window. */ 3640 if (win_alloc_firstwin(tp->tp_curwin) == OK) 3641 { 3642 /* Make the new Tab page the new topframe. */ 3643 if (after == 1) 3644 { 3645 /* New tab page becomes the first one. */ 3646 newtp->tp_next = first_tabpage; 3647 first_tabpage = newtp; 3648 } 3649 else 3650 { 3651 if (after > 0) 3652 { 3653 /* Put new tab page before tab page "after". */ 3654 n = 2; 3655 for (tp = first_tabpage; tp->tp_next != NULL 3656 && n < after; tp = tp->tp_next) 3657 ++n; 3658 } 3659 newtp->tp_next = tp->tp_next; 3660 tp->tp_next = newtp; 3661 } 3662 win_init_size(); 3663 firstwin->w_winrow = tabline_height(); 3664 win_comp_scroll(curwin); 3665 3666 newtp->tp_topframe = topframe; 3667 last_status(FALSE); 3668 3669 #if defined(FEAT_GUI) 3670 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 3671 * scrollbars. Have to update them anyway. */ 3672 gui_may_update_scrollbars(); 3673 #endif 3674 3675 redraw_all_later(CLEAR); 3676 #ifdef FEAT_AUTOCMD 3677 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 3678 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 3679 apply_autocmds(EVENT_TABNEW, NULL, NULL, FALSE, curbuf); 3680 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3681 #endif 3682 return OK; 3683 } 3684 3685 /* Failed, get back the previous Tab page */ 3686 enter_tabpage(curtab, curbuf, TRUE, TRUE); 3687 return FAIL; 3688 } 3689 3690 /* 3691 * Open a new tab page if ":tab cmd" was used. It will edit the same buffer, 3692 * like with ":split". 3693 * Returns OK if a new tab page was created, FAIL otherwise. 3694 */ 3695 int 3696 may_open_tabpage(void) 3697 { 3698 int n = (cmdmod.tab == 0) ? postponed_split_tab : cmdmod.tab; 3699 3700 if (n != 0) 3701 { 3702 cmdmod.tab = 0; /* reset it to avoid doing it twice */ 3703 postponed_split_tab = 0; 3704 return win_new_tabpage(n); 3705 } 3706 return FAIL; 3707 } 3708 3709 /* 3710 * Create up to "maxcount" tabpages with empty windows. 3711 * Returns the number of resulting tab pages. 3712 */ 3713 int 3714 make_tabpages(int maxcount) 3715 { 3716 int count = maxcount; 3717 int todo; 3718 3719 /* Limit to 'tabpagemax' tabs. */ 3720 if (count > p_tpm) 3721 count = p_tpm; 3722 3723 #ifdef FEAT_AUTOCMD 3724 /* 3725 * Don't execute autocommands while creating the tab pages. Must do that 3726 * when putting the buffers in the windows. 3727 */ 3728 block_autocmds(); 3729 #endif 3730 3731 for (todo = count - 1; todo > 0; --todo) 3732 if (win_new_tabpage(0) == FAIL) 3733 break; 3734 3735 #ifdef FEAT_AUTOCMD 3736 unblock_autocmds(); 3737 #endif 3738 3739 /* return actual number of tab pages */ 3740 return (count - todo); 3741 } 3742 3743 /* 3744 * Return TRUE when "tpc" points to a valid tab page. 3745 */ 3746 int 3747 valid_tabpage(tabpage_T *tpc) 3748 { 3749 tabpage_T *tp; 3750 3751 FOR_ALL_TABPAGES(tp) 3752 if (tp == tpc) 3753 return TRUE; 3754 return FALSE; 3755 } 3756 3757 /* 3758 * Find tab page "n" (first one is 1). Returns NULL when not found. 3759 */ 3760 tabpage_T * 3761 find_tabpage(int n) 3762 { 3763 tabpage_T *tp; 3764 int i = 1; 3765 3766 for (tp = first_tabpage; tp != NULL && i != n; tp = tp->tp_next) 3767 ++i; 3768 return tp; 3769 } 3770 3771 /* 3772 * Get index of tab page "tp". First one has index 1. 3773 * When not found returns number of tab pages plus one. 3774 */ 3775 int 3776 tabpage_index(tabpage_T *ftp) 3777 { 3778 int i = 1; 3779 tabpage_T *tp; 3780 3781 for (tp = first_tabpage; tp != NULL && tp != ftp; tp = tp->tp_next) 3782 ++i; 3783 return i; 3784 } 3785 3786 /* 3787 * Prepare for leaving the current tab page. 3788 * When autocommands change "curtab" we don't leave the tab page and return 3789 * FAIL. 3790 * Careful: When OK is returned need to get a new tab page very very soon! 3791 */ 3792 static int 3793 leave_tabpage( 3794 buf_T *new_curbuf UNUSED, /* what is going to be the new curbuf, 3795 NULL if unknown */ 3796 int trigger_leave_autocmds UNUSED) 3797 { 3798 tabpage_T *tp = curtab; 3799 3800 reset_VIsual_and_resel(); /* stop Visual mode */ 3801 #ifdef FEAT_AUTOCMD 3802 if (trigger_leave_autocmds) 3803 { 3804 if (new_curbuf != curbuf) 3805 { 3806 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 3807 if (curtab != tp) 3808 return FAIL; 3809 } 3810 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 3811 if (curtab != tp) 3812 return FAIL; 3813 apply_autocmds(EVENT_TABLEAVE, NULL, NULL, FALSE, curbuf); 3814 if (curtab != tp) 3815 return FAIL; 3816 } 3817 #endif 3818 #if defined(FEAT_GUI) 3819 /* Remove the scrollbars. They may be added back later. */ 3820 if (gui.in_use) 3821 gui_remove_scrollbars(); 3822 #endif 3823 tp->tp_curwin = curwin; 3824 tp->tp_prevwin = prevwin; 3825 tp->tp_firstwin = firstwin; 3826 tp->tp_lastwin = lastwin; 3827 tp->tp_old_Rows = Rows; 3828 tp->tp_old_Columns = Columns; 3829 firstwin = NULL; 3830 lastwin = NULL; 3831 return OK; 3832 } 3833 3834 /* 3835 * Start using tab page "tp". 3836 * Only to be used after leave_tabpage() or freeing the current tab page. 3837 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 3838 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 3839 */ 3840 static void 3841 enter_tabpage( 3842 tabpage_T *tp, 3843 buf_T *old_curbuf UNUSED, 3844 int trigger_enter_autocmds, 3845 int trigger_leave_autocmds) 3846 { 3847 int old_off = tp->tp_firstwin->w_winrow; 3848 win_T *next_prevwin = tp->tp_prevwin; 3849 3850 curtab = tp; 3851 firstwin = tp->tp_firstwin; 3852 lastwin = tp->tp_lastwin; 3853 topframe = tp->tp_topframe; 3854 3855 /* We would like doing the TabEnter event first, but we don't have a 3856 * valid current window yet, which may break some commands. 3857 * This triggers autocommands, thus may make "tp" invalid. */ 3858 win_enter_ext(tp->tp_curwin, FALSE, TRUE, FALSE, 3859 trigger_enter_autocmds, trigger_leave_autocmds); 3860 prevwin = next_prevwin; 3861 3862 last_status(FALSE); /* status line may appear or disappear */ 3863 (void)win_comp_pos(); /* recompute w_winrow for all windows */ 3864 must_redraw = CLEAR; /* need to redraw everything */ 3865 #ifdef FEAT_DIFF 3866 diff_need_scrollbind = TRUE; 3867 #endif 3868 3869 /* The tabpage line may have appeared or disappeared, may need to resize 3870 * the frames for that. When the Vim window was resized need to update 3871 * frame sizes too. Use the stored value of p_ch, so that it can be 3872 * different for each tab page. */ 3873 p_ch = curtab->tp_ch_used; 3874 if (curtab->tp_old_Rows != Rows || (old_off != firstwin->w_winrow 3875 #ifdef FEAT_GUI_TABLINE 3876 && !gui_use_tabline() 3877 #endif 3878 )) 3879 shell_new_rows(); 3880 if (curtab->tp_old_Columns != Columns && starting == 0) 3881 shell_new_columns(); /* update window widths */ 3882 3883 #if defined(FEAT_GUI) 3884 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 3885 * scrollbars. Have to update them anyway. */ 3886 gui_may_update_scrollbars(); 3887 #endif 3888 3889 #ifdef FEAT_AUTOCMD 3890 /* Apply autocommands after updating the display, when 'rows' and 3891 * 'columns' have been set correctly. */ 3892 if (trigger_enter_autocmds) 3893 { 3894 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3895 if (old_curbuf != curbuf) 3896 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 3897 } 3898 #endif 3899 3900 redraw_all_later(CLEAR); 3901 } 3902 3903 /* 3904 * Go to tab page "n". For ":tab N" and "Ngt". 3905 * When "n" is 9999 go to the last tab page. 3906 */ 3907 void 3908 goto_tabpage(int n) 3909 { 3910 tabpage_T *tp; 3911 tabpage_T *ttp; 3912 int i; 3913 3914 if (text_locked()) 3915 { 3916 /* Not allowed when editing the command line. */ 3917 text_locked_msg(); 3918 return; 3919 } 3920 3921 /* If there is only one it can't work. */ 3922 if (first_tabpage->tp_next == NULL) 3923 { 3924 if (n > 1) 3925 beep_flush(); 3926 return; 3927 } 3928 3929 if (n == 0) 3930 { 3931 /* No count, go to next tab page, wrap around end. */ 3932 if (curtab->tp_next == NULL) 3933 tp = first_tabpage; 3934 else 3935 tp = curtab->tp_next; 3936 } 3937 else if (n < 0) 3938 { 3939 /* "gT": go to previous tab page, wrap around end. "N gT" repeats 3940 * this N times. */ 3941 ttp = curtab; 3942 for (i = n; i < 0; ++i) 3943 { 3944 for (tp = first_tabpage; tp->tp_next != ttp && tp->tp_next != NULL; 3945 tp = tp->tp_next) 3946 ; 3947 ttp = tp; 3948 } 3949 } 3950 else if (n == 9999) 3951 { 3952 /* Go to last tab page. */ 3953 for (tp = first_tabpage; tp->tp_next != NULL; tp = tp->tp_next) 3954 ; 3955 } 3956 else 3957 { 3958 /* Go to tab page "n". */ 3959 tp = find_tabpage(n); 3960 if (tp == NULL) 3961 { 3962 beep_flush(); 3963 return; 3964 } 3965 } 3966 3967 goto_tabpage_tp(tp, TRUE, TRUE); 3968 3969 #ifdef FEAT_GUI_TABLINE 3970 if (gui_use_tabline()) 3971 gui_mch_set_curtab(tabpage_index(curtab)); 3972 #endif 3973 } 3974 3975 /* 3976 * Go to tabpage "tp". 3977 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 3978 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 3979 * Note: doesn't update the GUI tab. 3980 */ 3981 void 3982 goto_tabpage_tp( 3983 tabpage_T *tp, 3984 int trigger_enter_autocmds, 3985 int trigger_leave_autocmds) 3986 { 3987 /* Don't repeat a message in another tab page. */ 3988 set_keep_msg(NULL, 0); 3989 3990 if (tp != curtab && leave_tabpage(tp->tp_curwin->w_buffer, 3991 trigger_leave_autocmds) == OK) 3992 { 3993 if (valid_tabpage(tp)) 3994 enter_tabpage(tp, curbuf, trigger_enter_autocmds, 3995 trigger_leave_autocmds); 3996 else 3997 enter_tabpage(curtab, curbuf, trigger_enter_autocmds, 3998 trigger_leave_autocmds); 3999 } 4000 } 4001 4002 /* 4003 * Enter window "wp" in tab page "tp". 4004 * Also updates the GUI tab. 4005 */ 4006 void 4007 goto_tabpage_win(tabpage_T *tp, win_T *wp) 4008 { 4009 goto_tabpage_tp(tp, TRUE, TRUE); 4010 if (curtab == tp && win_valid(wp)) 4011 { 4012 win_enter(wp, TRUE); 4013 # ifdef FEAT_GUI_TABLINE 4014 if (gui_use_tabline()) 4015 gui_mch_set_curtab(tabpage_index(curtab)); 4016 # endif 4017 } 4018 } 4019 4020 /* 4021 * Move the current tab page to after tab page "nr". 4022 */ 4023 void 4024 tabpage_move(int nr) 4025 { 4026 int n = 1; 4027 tabpage_T *tp, *tp_dst; 4028 4029 if (first_tabpage->tp_next == NULL) 4030 return; 4031 4032 for (tp = first_tabpage; tp->tp_next != NULL && n < nr; tp = tp->tp_next) 4033 ++n; 4034 4035 if (tp == curtab || (nr > 0 && tp->tp_next != NULL 4036 && tp->tp_next == curtab)) 4037 return; 4038 4039 tp_dst = tp; 4040 4041 /* Remove the current tab page from the list of tab pages. */ 4042 if (curtab == first_tabpage) 4043 first_tabpage = curtab->tp_next; 4044 else 4045 { 4046 FOR_ALL_TABPAGES(tp) 4047 if (tp->tp_next == curtab) 4048 break; 4049 if (tp == NULL) /* "cannot happen" */ 4050 return; 4051 tp->tp_next = curtab->tp_next; 4052 } 4053 4054 /* Re-insert it at the specified position. */ 4055 if (nr <= 0) 4056 { 4057 curtab->tp_next = first_tabpage; 4058 first_tabpage = curtab; 4059 } 4060 else 4061 { 4062 curtab->tp_next = tp_dst->tp_next; 4063 tp_dst->tp_next = curtab; 4064 } 4065 4066 /* Need to redraw the tabline. Tab page contents doesn't change. */ 4067 redraw_tabline = TRUE; 4068 } 4069 4070 4071 /* 4072 * Go to another window. 4073 * When jumping to another buffer, stop Visual mode. Do this before 4074 * changing windows so we can yank the selection into the '*' register. 4075 * When jumping to another window on the same buffer, adjust its cursor 4076 * position to keep the same Visual area. 4077 */ 4078 void 4079 win_goto(win_T *wp) 4080 { 4081 #ifdef FEAT_CONCEAL 4082 win_T *owp = curwin; 4083 #endif 4084 4085 if (text_locked()) 4086 { 4087 beep_flush(); 4088 text_locked_msg(); 4089 return; 4090 } 4091 #ifdef FEAT_AUTOCMD 4092 if (curbuf_locked()) 4093 return; 4094 #endif 4095 4096 if (wp->w_buffer != curbuf) 4097 reset_VIsual_and_resel(); 4098 else if (VIsual_active) 4099 wp->w_cursor = curwin->w_cursor; 4100 4101 #ifdef FEAT_GUI 4102 need_mouse_correct = TRUE; 4103 #endif 4104 win_enter(wp, TRUE); 4105 4106 #ifdef FEAT_CONCEAL 4107 /* Conceal cursor line in previous window, unconceal in current window. */ 4108 if (win_valid(owp) && owp->w_p_cole > 0 && !msg_scrolled) 4109 update_single_line(owp, owp->w_cursor.lnum); 4110 if (curwin->w_p_cole > 0 && !msg_scrolled) 4111 need_cursor_line_redraw = TRUE; 4112 #endif 4113 } 4114 4115 #if defined(FEAT_PERL) || defined(PROTO) 4116 /* 4117 * Find window number "winnr" (counting top to bottom). 4118 */ 4119 win_T * 4120 win_find_nr(int winnr) 4121 { 4122 win_T *wp; 4123 4124 # ifdef FEAT_WINDOWS 4125 FOR_ALL_WINDOWS(wp) 4126 if (--winnr == 0) 4127 break; 4128 return wp; 4129 # else 4130 return curwin; 4131 # endif 4132 } 4133 #endif 4134 4135 #if (defined(FEAT_WINDOWS) && (defined(FEAT_PYTHON) || defined(FEAT_PYTHON3))) \ 4136 || defined(PROTO) 4137 /* 4138 * Find the tabpage for window "win". 4139 */ 4140 tabpage_T * 4141 win_find_tabpage(win_T *win) 4142 { 4143 win_T *wp; 4144 tabpage_T *tp; 4145 4146 FOR_ALL_TAB_WINDOWS(tp, wp) 4147 if (wp == win) 4148 return tp; 4149 return NULL; 4150 } 4151 #endif 4152 4153 /* 4154 * Move to window above or below "count" times. 4155 */ 4156 static void 4157 win_goto_ver( 4158 int up, /* TRUE to go to win above */ 4159 long count) 4160 { 4161 frame_T *fr; 4162 frame_T *nfr; 4163 frame_T *foundfr; 4164 4165 foundfr = curwin->w_frame; 4166 while (count--) 4167 { 4168 /* 4169 * First go upwards in the tree of frames until we find a upwards or 4170 * downwards neighbor. 4171 */ 4172 fr = foundfr; 4173 for (;;) 4174 { 4175 if (fr == topframe) 4176 goto end; 4177 if (up) 4178 nfr = fr->fr_prev; 4179 else 4180 nfr = fr->fr_next; 4181 if (fr->fr_parent->fr_layout == FR_COL && nfr != NULL) 4182 break; 4183 fr = fr->fr_parent; 4184 } 4185 4186 /* 4187 * Now go downwards to find the bottom or top frame in it. 4188 */ 4189 for (;;) 4190 { 4191 if (nfr->fr_layout == FR_LEAF) 4192 { 4193 foundfr = nfr; 4194 break; 4195 } 4196 fr = nfr->fr_child; 4197 if (nfr->fr_layout == FR_ROW) 4198 { 4199 /* Find the frame at the cursor row. */ 4200 while (fr->fr_next != NULL 4201 && frame2win(fr)->w_wincol + fr->fr_width 4202 <= curwin->w_wincol + curwin->w_wcol) 4203 fr = fr->fr_next; 4204 } 4205 if (nfr->fr_layout == FR_COL && up) 4206 while (fr->fr_next != NULL) 4207 fr = fr->fr_next; 4208 nfr = fr; 4209 } 4210 } 4211 end: 4212 if (foundfr != NULL) 4213 win_goto(foundfr->fr_win); 4214 } 4215 4216 /* 4217 * Move to left or right window. 4218 */ 4219 static void 4220 win_goto_hor( 4221 int left, /* TRUE to go to left win */ 4222 long count) 4223 { 4224 frame_T *fr; 4225 frame_T *nfr; 4226 frame_T *foundfr; 4227 4228 foundfr = curwin->w_frame; 4229 while (count--) 4230 { 4231 /* 4232 * First go upwards in the tree of frames until we find a left or 4233 * right neighbor. 4234 */ 4235 fr = foundfr; 4236 for (;;) 4237 { 4238 if (fr == topframe) 4239 goto end; 4240 if (left) 4241 nfr = fr->fr_prev; 4242 else 4243 nfr = fr->fr_next; 4244 if (fr->fr_parent->fr_layout == FR_ROW && nfr != NULL) 4245 break; 4246 fr = fr->fr_parent; 4247 } 4248 4249 /* 4250 * Now go downwards to find the leftmost or rightmost frame in it. 4251 */ 4252 for (;;) 4253 { 4254 if (nfr->fr_layout == FR_LEAF) 4255 { 4256 foundfr = nfr; 4257 break; 4258 } 4259 fr = nfr->fr_child; 4260 if (nfr->fr_layout == FR_COL) 4261 { 4262 /* Find the frame at the cursor row. */ 4263 while (fr->fr_next != NULL 4264 && frame2win(fr)->w_winrow + fr->fr_height 4265 <= curwin->w_winrow + curwin->w_wrow) 4266 fr = fr->fr_next; 4267 } 4268 if (nfr->fr_layout == FR_ROW && left) 4269 while (fr->fr_next != NULL) 4270 fr = fr->fr_next; 4271 nfr = fr; 4272 } 4273 } 4274 end: 4275 if (foundfr != NULL) 4276 win_goto(foundfr->fr_win); 4277 } 4278 4279 /* 4280 * Make window "wp" the current window. 4281 */ 4282 void 4283 win_enter(win_T *wp, int undo_sync) 4284 { 4285 win_enter_ext(wp, undo_sync, FALSE, FALSE, TRUE, TRUE); 4286 } 4287 4288 /* 4289 * Make window wp the current window. 4290 * Can be called with "curwin_invalid" TRUE, which means that curwin has just 4291 * been closed and isn't valid. 4292 */ 4293 static void 4294 win_enter_ext( 4295 win_T *wp, 4296 int undo_sync, 4297 int curwin_invalid, 4298 int trigger_new_autocmds UNUSED, 4299 int trigger_enter_autocmds UNUSED, 4300 int trigger_leave_autocmds UNUSED) 4301 { 4302 #ifdef FEAT_AUTOCMD 4303 int other_buffer = FALSE; 4304 #endif 4305 4306 if (wp == curwin && !curwin_invalid) /* nothing to do */ 4307 return; 4308 4309 #ifdef FEAT_AUTOCMD 4310 if (!curwin_invalid && trigger_leave_autocmds) 4311 { 4312 /* 4313 * Be careful: If autocommands delete the window, return now. 4314 */ 4315 if (wp->w_buffer != curbuf) 4316 { 4317 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4318 other_buffer = TRUE; 4319 if (!win_valid(wp)) 4320 return; 4321 } 4322 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4323 if (!win_valid(wp)) 4324 return; 4325 # ifdef FEAT_EVAL 4326 /* autocmds may abort script processing */ 4327 if (aborting()) 4328 return; 4329 # endif 4330 } 4331 #endif 4332 4333 /* sync undo before leaving the current buffer */ 4334 if (undo_sync && curbuf != wp->w_buffer) 4335 u_sync(FALSE); 4336 4337 /* Might need to scroll the old window before switching, e.g., when the 4338 * cursor was moved. */ 4339 update_topline(); 4340 4341 /* may have to copy the buffer options when 'cpo' contains 'S' */ 4342 if (wp->w_buffer != curbuf) 4343 buf_copy_options(wp->w_buffer, BCO_ENTER | BCO_NOHELP); 4344 if (!curwin_invalid) 4345 { 4346 prevwin = curwin; /* remember for CTRL-W p */ 4347 curwin->w_redr_status = TRUE; 4348 } 4349 curwin = wp; 4350 curbuf = wp->w_buffer; 4351 check_cursor(); 4352 #ifdef FEAT_VIRTUALEDIT 4353 if (!virtual_active()) 4354 curwin->w_cursor.coladd = 0; 4355 #endif 4356 changed_line_abv_curs(); /* assume cursor position needs updating */ 4357 4358 if (curwin->w_localdir != NULL) 4359 { 4360 /* Window has a local directory: Save current directory as global 4361 * directory (unless that was done already) and change to the local 4362 * directory. */ 4363 if (globaldir == NULL) 4364 { 4365 char_u cwd[MAXPATHL]; 4366 4367 if (mch_dirname(cwd, MAXPATHL) == OK) 4368 globaldir = vim_strsave(cwd); 4369 } 4370 if (mch_chdir((char *)curwin->w_localdir) == 0) 4371 shorten_fnames(TRUE); 4372 } 4373 else if (globaldir != NULL) 4374 { 4375 /* Window doesn't have a local directory and we are not in the global 4376 * directory: Change to the global directory. */ 4377 ignored = mch_chdir((char *)globaldir); 4378 vim_free(globaldir); 4379 globaldir = NULL; 4380 shorten_fnames(TRUE); 4381 } 4382 4383 #ifdef FEAT_AUTOCMD 4384 if (trigger_new_autocmds) 4385 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 4386 if (trigger_enter_autocmds) 4387 { 4388 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 4389 if (other_buffer) 4390 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4391 } 4392 #endif 4393 4394 #ifdef FEAT_TITLE 4395 maketitle(); 4396 #endif 4397 curwin->w_redr_status = TRUE; 4398 redraw_tabline = TRUE; 4399 if (restart_edit) 4400 redraw_later(VALID); /* causes status line redraw */ 4401 4402 /* set window height to desired minimal value */ 4403 if (curwin->w_height < p_wh && !curwin->w_p_wfh) 4404 win_setheight((int)p_wh); 4405 else if (curwin->w_height == 0) 4406 win_setheight(1); 4407 4408 /* set window width to desired minimal value */ 4409 if (curwin->w_width < p_wiw && !curwin->w_p_wfw) 4410 win_setwidth((int)p_wiw); 4411 4412 #ifdef FEAT_MOUSE 4413 setmouse(); /* in case jumped to/from help buffer */ 4414 #endif 4415 4416 /* Change directories when the 'acd' option is set. */ 4417 DO_AUTOCHDIR 4418 } 4419 4420 #endif /* FEAT_WINDOWS */ 4421 4422 #if defined(FEAT_WINDOWS) || defined(FEAT_SIGNS) || defined(PROTO) 4423 /* 4424 * Jump to the first open window that contains buffer "buf", if one exists. 4425 * Returns a pointer to the window found, otherwise NULL. 4426 */ 4427 win_T * 4428 buf_jump_open_win(buf_T *buf) 4429 { 4430 win_T *wp = NULL; 4431 4432 if (curwin->w_buffer == buf) 4433 wp = curwin; 4434 # ifdef FEAT_WINDOWS 4435 else 4436 FOR_ALL_WINDOWS(wp) 4437 if (wp->w_buffer == buf) 4438 break; 4439 if (wp != NULL) 4440 win_enter(wp, FALSE); 4441 # endif 4442 return wp; 4443 } 4444 4445 /* 4446 * Jump to the first open window in any tab page that contains buffer "buf", 4447 * if one exists. 4448 * Returns a pointer to the window found, otherwise NULL. 4449 */ 4450 win_T * 4451 buf_jump_open_tab(buf_T *buf) 4452 { 4453 win_T *wp = buf_jump_open_win(buf); 4454 # ifdef FEAT_WINDOWS 4455 tabpage_T *tp; 4456 4457 if (wp != NULL) 4458 return wp; 4459 4460 FOR_ALL_TABPAGES(tp) 4461 if (tp != curtab) 4462 { 4463 for (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next) 4464 if (wp->w_buffer == buf) 4465 break; 4466 if (wp != NULL) 4467 { 4468 goto_tabpage_win(tp, wp); 4469 if (curwin != wp) 4470 wp = NULL; /* something went wrong */ 4471 break; 4472 } 4473 } 4474 # endif 4475 return wp; 4476 } 4477 #endif 4478 4479 static int last_win_id = LOWEST_WIN_ID - 1; 4480 4481 /* 4482 * Allocate a window structure and link it in the window list when "hidden" is 4483 * FALSE. 4484 */ 4485 static win_T * 4486 win_alloc(win_T *after UNUSED, int hidden UNUSED) 4487 { 4488 win_T *new_wp; 4489 4490 /* 4491 * allocate window structure and linesizes arrays 4492 */ 4493 new_wp = (win_T *)alloc_clear((unsigned)sizeof(win_T)); 4494 if (new_wp == NULL) 4495 return NULL; 4496 4497 if (win_alloc_lines(new_wp) == FAIL) 4498 { 4499 vim_free(new_wp); 4500 return NULL; 4501 } 4502 4503 new_wp->w_id = ++last_win_id; 4504 4505 #ifdef FEAT_EVAL 4506 /* init w: variables */ 4507 new_wp->w_vars = dict_alloc(); 4508 if (new_wp->w_vars == NULL) 4509 { 4510 win_free_lsize(new_wp); 4511 vim_free(new_wp); 4512 return NULL; 4513 } 4514 init_var_dict(new_wp->w_vars, &new_wp->w_winvar, VAR_SCOPE); 4515 #endif 4516 4517 #ifdef FEAT_AUTOCMD 4518 /* Don't execute autocommands while the window is not properly 4519 * initialized yet. gui_create_scrollbar() may trigger a FocusGained 4520 * event. */ 4521 block_autocmds(); 4522 #endif 4523 /* 4524 * link the window in the window list 4525 */ 4526 #ifdef FEAT_WINDOWS 4527 if (!hidden) 4528 win_append(after, new_wp); 4529 new_wp->w_wincol = 0; 4530 new_wp->w_width = Columns; 4531 #endif 4532 4533 /* position the display and the cursor at the top of the file. */ 4534 new_wp->w_topline = 1; 4535 #ifdef FEAT_DIFF 4536 new_wp->w_topfill = 0; 4537 #endif 4538 new_wp->w_botline = 2; 4539 new_wp->w_cursor.lnum = 1; 4540 #ifdef FEAT_SCROLLBIND 4541 new_wp->w_scbind_pos = 1; 4542 #endif 4543 4544 /* We won't calculate w_fraction until resizing the window */ 4545 new_wp->w_fraction = 0; 4546 new_wp->w_prev_fraction_row = -1; 4547 4548 #ifdef FEAT_GUI 4549 if (gui.in_use) 4550 { 4551 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_LEFT], 4552 SBAR_LEFT, new_wp); 4553 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_RIGHT], 4554 SBAR_RIGHT, new_wp); 4555 } 4556 #endif 4557 #ifdef FEAT_FOLDING 4558 foldInitWin(new_wp); 4559 #endif 4560 #ifdef FEAT_AUTOCMD 4561 unblock_autocmds(); 4562 #endif 4563 #ifdef FEAT_SEARCH_EXTRA 4564 new_wp->w_match_head = NULL; 4565 new_wp->w_next_match_id = 4; 4566 #endif 4567 return new_wp; 4568 } 4569 4570 #if defined(FEAT_WINDOWS) || defined(PROTO) 4571 4572 /* 4573 * Remove window 'wp' from the window list and free the structure. 4574 */ 4575 static void 4576 win_free( 4577 win_T *wp, 4578 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 4579 { 4580 int i; 4581 buf_T *buf; 4582 wininfo_T *wip; 4583 4584 #ifdef FEAT_FOLDING 4585 clearFolding(wp); 4586 #endif 4587 4588 /* reduce the reference count to the argument list. */ 4589 alist_unlink(wp->w_alist); 4590 4591 #ifdef FEAT_AUTOCMD 4592 /* Don't execute autocommands while the window is halfway being deleted. 4593 * gui_mch_destroy_scrollbar() may trigger a FocusGained event. */ 4594 block_autocmds(); 4595 #endif 4596 4597 #ifdef FEAT_LUA 4598 lua_window_free(wp); 4599 #endif 4600 4601 #ifdef FEAT_MZSCHEME 4602 mzscheme_window_free(wp); 4603 #endif 4604 4605 #ifdef FEAT_PERL 4606 perl_win_free(wp); 4607 #endif 4608 4609 #ifdef FEAT_PYTHON 4610 python_window_free(wp); 4611 #endif 4612 4613 #ifdef FEAT_PYTHON3 4614 python3_window_free(wp); 4615 #endif 4616 4617 #ifdef FEAT_TCL 4618 tcl_window_free(wp); 4619 #endif 4620 4621 #ifdef FEAT_RUBY 4622 ruby_window_free(wp); 4623 #endif 4624 4625 clear_winopt(&wp->w_onebuf_opt); 4626 clear_winopt(&wp->w_allbuf_opt); 4627 4628 #ifdef FEAT_EVAL 4629 vars_clear(&wp->w_vars->dv_hashtab); /* free all w: variables */ 4630 hash_init(&wp->w_vars->dv_hashtab); 4631 unref_var_dict(wp->w_vars); 4632 #endif 4633 4634 { 4635 tabpage_T *ttp; 4636 4637 if (prevwin == wp) 4638 prevwin = NULL; 4639 FOR_ALL_TABPAGES(ttp) 4640 if (ttp->tp_prevwin == wp) 4641 ttp->tp_prevwin = NULL; 4642 } 4643 win_free_lsize(wp); 4644 4645 for (i = 0; i < wp->w_tagstacklen; ++i) 4646 vim_free(wp->w_tagstack[i].tagname); 4647 4648 vim_free(wp->w_localdir); 4649 4650 /* Remove the window from the b_wininfo lists, it may happen that the 4651 * freed memory is re-used for another window. */ 4652 FOR_ALL_BUFFERS(buf) 4653 for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) 4654 if (wip->wi_win == wp) 4655 wip->wi_win = NULL; 4656 4657 #ifdef FEAT_SEARCH_EXTRA 4658 clear_matches(wp); 4659 #endif 4660 4661 #ifdef FEAT_JUMPLIST 4662 free_jumplist(wp); 4663 #endif 4664 4665 #ifdef FEAT_QUICKFIX 4666 qf_free_all(wp); 4667 #endif 4668 4669 #ifdef FEAT_GUI 4670 if (gui.in_use) 4671 { 4672 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_LEFT]); 4673 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_RIGHT]); 4674 } 4675 #endif /* FEAT_GUI */ 4676 4677 #ifdef FEAT_SYN_HL 4678 vim_free(wp->w_p_cc_cols); 4679 #endif 4680 4681 #ifdef FEAT_AUTOCMD 4682 if (wp != aucmd_win) 4683 #endif 4684 win_remove(wp, tp); 4685 #ifdef FEAT_AUTOCMD 4686 if (autocmd_busy) 4687 { 4688 wp->w_next = au_pending_free_win; 4689 au_pending_free_win = wp; 4690 } 4691 else 4692 #endif 4693 vim_free(wp); 4694 4695 #ifdef FEAT_AUTOCMD 4696 unblock_autocmds(); 4697 #endif 4698 } 4699 4700 /* 4701 * Append window "wp" in the window list after window "after". 4702 */ 4703 void 4704 win_append(win_T *after, win_T *wp) 4705 { 4706 win_T *before; 4707 4708 if (after == NULL) /* after NULL is in front of the first */ 4709 before = firstwin; 4710 else 4711 before = after->w_next; 4712 4713 wp->w_next = before; 4714 wp->w_prev = after; 4715 if (after == NULL) 4716 firstwin = wp; 4717 else 4718 after->w_next = wp; 4719 if (before == NULL) 4720 lastwin = wp; 4721 else 4722 before->w_prev = wp; 4723 } 4724 4725 /* 4726 * Remove a window from the window list. 4727 */ 4728 void 4729 win_remove( 4730 win_T *wp, 4731 tabpage_T *tp) /* tab page "win" is in, NULL for current */ 4732 { 4733 if (wp->w_prev != NULL) 4734 wp->w_prev->w_next = wp->w_next; 4735 else if (tp == NULL) 4736 firstwin = wp->w_next; 4737 else 4738 tp->tp_firstwin = wp->w_next; 4739 if (wp->w_next != NULL) 4740 wp->w_next->w_prev = wp->w_prev; 4741 else if (tp == NULL) 4742 lastwin = wp->w_prev; 4743 else 4744 tp->tp_lastwin = wp->w_prev; 4745 } 4746 4747 /* 4748 * Append frame "frp" in a frame list after frame "after". 4749 */ 4750 static void 4751 frame_append(frame_T *after, frame_T *frp) 4752 { 4753 frp->fr_next = after->fr_next; 4754 after->fr_next = frp; 4755 if (frp->fr_next != NULL) 4756 frp->fr_next->fr_prev = frp; 4757 frp->fr_prev = after; 4758 } 4759 4760 /* 4761 * Insert frame "frp" in a frame list before frame "before". 4762 */ 4763 static void 4764 frame_insert(frame_T *before, frame_T *frp) 4765 { 4766 frp->fr_next = before; 4767 frp->fr_prev = before->fr_prev; 4768 before->fr_prev = frp; 4769 if (frp->fr_prev != NULL) 4770 frp->fr_prev->fr_next = frp; 4771 else 4772 frp->fr_parent->fr_child = frp; 4773 } 4774 4775 /* 4776 * Remove a frame from a frame list. 4777 */ 4778 static void 4779 frame_remove(frame_T *frp) 4780 { 4781 if (frp->fr_prev != NULL) 4782 frp->fr_prev->fr_next = frp->fr_next; 4783 else 4784 frp->fr_parent->fr_child = frp->fr_next; 4785 if (frp->fr_next != NULL) 4786 frp->fr_next->fr_prev = frp->fr_prev; 4787 } 4788 4789 #endif /* FEAT_WINDOWS */ 4790 4791 /* 4792 * Allocate w_lines[] for window "wp". 4793 * Return FAIL for failure, OK for success. 4794 */ 4795 int 4796 win_alloc_lines(win_T *wp) 4797 { 4798 wp->w_lines_valid = 0; 4799 wp->w_lines = (wline_T *)alloc_clear((unsigned)(Rows * sizeof(wline_T))); 4800 if (wp->w_lines == NULL) 4801 return FAIL; 4802 return OK; 4803 } 4804 4805 /* 4806 * free lsize arrays for a window 4807 */ 4808 void 4809 win_free_lsize(win_T *wp) 4810 { 4811 /* TODO: why would wp be NULL here? */ 4812 if (wp != NULL) 4813 { 4814 vim_free(wp->w_lines); 4815 wp->w_lines = NULL; 4816 } 4817 } 4818 4819 /* 4820 * Called from win_new_shellsize() after Rows changed. 4821 * This only does the current tab page, others must be done when made active. 4822 */ 4823 void 4824 shell_new_rows(void) 4825 { 4826 int h = (int)ROWS_AVAIL; 4827 4828 if (firstwin == NULL) /* not initialized yet */ 4829 return; 4830 #ifdef FEAT_WINDOWS 4831 if (h < frame_minheight(topframe, NULL)) 4832 h = frame_minheight(topframe, NULL); 4833 4834 /* First try setting the heights of windows with 'winfixheight'. If 4835 * that doesn't result in the right height, forget about that option. */ 4836 frame_new_height(topframe, h, FALSE, TRUE); 4837 if (!frame_check_height(topframe, h)) 4838 frame_new_height(topframe, h, FALSE, FALSE); 4839 4840 (void)win_comp_pos(); /* recompute w_winrow and w_wincol */ 4841 #else 4842 if (h < 1) 4843 h = 1; 4844 win_new_height(firstwin, h); 4845 #endif 4846 compute_cmdrow(); 4847 #ifdef FEAT_WINDOWS 4848 curtab->tp_ch_used = p_ch; 4849 #endif 4850 4851 #if 0 4852 /* Disabled: don't want making the screen smaller make a window larger. */ 4853 if (p_ea) 4854 win_equal(curwin, FALSE, 'v'); 4855 #endif 4856 } 4857 4858 #if defined(FEAT_WINDOWS) || defined(PROTO) 4859 /* 4860 * Called from win_new_shellsize() after Columns changed. 4861 */ 4862 void 4863 shell_new_columns(void) 4864 { 4865 if (firstwin == NULL) /* not initialized yet */ 4866 return; 4867 4868 /* First try setting the widths of windows with 'winfixwidth'. If that 4869 * doesn't result in the right width, forget about that option. */ 4870 frame_new_width(topframe, (int)Columns, FALSE, TRUE); 4871 if (!frame_check_width(topframe, Columns)) 4872 frame_new_width(topframe, (int)Columns, FALSE, FALSE); 4873 4874 (void)win_comp_pos(); /* recompute w_winrow and w_wincol */ 4875 #if 0 4876 /* Disabled: don't want making the screen smaller make a window larger. */ 4877 if (p_ea) 4878 win_equal(curwin, FALSE, 'h'); 4879 #endif 4880 } 4881 #endif 4882 4883 #if defined(FEAT_CMDWIN) || defined(PROTO) 4884 /* 4885 * Save the size of all windows in "gap". 4886 */ 4887 void 4888 win_size_save(garray_T *gap) 4889 4890 { 4891 win_T *wp; 4892 4893 ga_init2(gap, (int)sizeof(int), 1); 4894 if (ga_grow(gap, win_count() * 2) == OK) 4895 FOR_ALL_WINDOWS(wp) 4896 { 4897 ((int *)gap->ga_data)[gap->ga_len++] = 4898 wp->w_width + wp->w_vsep_width; 4899 ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height; 4900 } 4901 } 4902 4903 /* 4904 * Restore window sizes, but only if the number of windows is still the same. 4905 * Does not free the growarray. 4906 */ 4907 void 4908 win_size_restore(garray_T *gap) 4909 { 4910 win_T *wp; 4911 int i, j; 4912 4913 if (win_count() * 2 == gap->ga_len) 4914 { 4915 /* The order matters, because frames contain other frames, but it's 4916 * difficult to get right. The easy way out is to do it twice. */ 4917 for (j = 0; j < 2; ++j) 4918 { 4919 i = 0; 4920 FOR_ALL_WINDOWS(wp) 4921 { 4922 frame_setwidth(wp->w_frame, ((int *)gap->ga_data)[i++]); 4923 win_setheight_win(((int *)gap->ga_data)[i++], wp); 4924 } 4925 } 4926 /* recompute the window positions */ 4927 (void)win_comp_pos(); 4928 } 4929 } 4930 #endif /* FEAT_CMDWIN */ 4931 4932 #if defined(FEAT_WINDOWS) || defined(PROTO) 4933 /* 4934 * Update the position for all windows, using the width and height of the 4935 * frames. 4936 * Returns the row just after the last window. 4937 */ 4938 int 4939 win_comp_pos(void) 4940 { 4941 int row = tabline_height(); 4942 int col = 0; 4943 4944 frame_comp_pos(topframe, &row, &col); 4945 return row; 4946 } 4947 4948 /* 4949 * Update the position of the windows in frame "topfrp", using the width and 4950 * height of the frames. 4951 * "*row" and "*col" are the top-left position of the frame. They are updated 4952 * to the bottom-right position plus one. 4953 */ 4954 static void 4955 frame_comp_pos(frame_T *topfrp, int *row, int *col) 4956 { 4957 win_T *wp; 4958 frame_T *frp; 4959 int startcol; 4960 int startrow; 4961 4962 wp = topfrp->fr_win; 4963 if (wp != NULL) 4964 { 4965 if (wp->w_winrow != *row || wp->w_wincol != *col) 4966 { 4967 /* position changed, redraw */ 4968 wp->w_winrow = *row; 4969 wp->w_wincol = *col; 4970 redraw_win_later(wp, NOT_VALID); 4971 wp->w_redr_status = TRUE; 4972 } 4973 *row += wp->w_height + wp->w_status_height; 4974 *col += wp->w_width + wp->w_vsep_width; 4975 } 4976 else 4977 { 4978 startrow = *row; 4979 startcol = *col; 4980 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 4981 { 4982 if (topfrp->fr_layout == FR_ROW) 4983 *row = startrow; /* all frames are at the same row */ 4984 else 4985 *col = startcol; /* all frames are at the same col */ 4986 frame_comp_pos(frp, row, col); 4987 } 4988 } 4989 } 4990 4991 #endif /* FEAT_WINDOWS */ 4992 4993 /* 4994 * Set current window height and take care of repositioning other windows to 4995 * fit around it. 4996 */ 4997 void 4998 win_setheight(int height) 4999 { 5000 win_setheight_win(height, curwin); 5001 } 5002 5003 /* 5004 * Set the window height of window "win" and take care of repositioning other 5005 * windows to fit around it. 5006 */ 5007 void 5008 win_setheight_win(int height, win_T *win) 5009 { 5010 int row; 5011 5012 if (win == curwin) 5013 { 5014 /* Always keep current window at least one line high, even when 5015 * 'winminheight' is zero. */ 5016 #ifdef FEAT_WINDOWS 5017 if (height < p_wmh) 5018 height = p_wmh; 5019 #endif 5020 if (height == 0) 5021 height = 1; 5022 } 5023 5024 #ifdef FEAT_WINDOWS 5025 frame_setheight(win->w_frame, height + win->w_status_height); 5026 5027 /* recompute the window positions */ 5028 row = win_comp_pos(); 5029 #else 5030 if (height > topframe->fr_height) 5031 height = topframe->fr_height; 5032 win->w_height = height; 5033 row = height; 5034 #endif 5035 5036 /* 5037 * If there is extra space created between the last window and the command 5038 * line, clear it. 5039 */ 5040 if (full_screen && msg_scrolled == 0 && row < cmdline_row) 5041 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5042 cmdline_row = row; 5043 msg_row = row; 5044 msg_col = 0; 5045 5046 redraw_all_later(NOT_VALID); 5047 } 5048 5049 #if defined(FEAT_WINDOWS) || defined(PROTO) 5050 5051 /* 5052 * Set the height of a frame to "height" and take care that all frames and 5053 * windows inside it are resized. Also resize frames on the left and right if 5054 * the are in the same FR_ROW frame. 5055 * 5056 * Strategy: 5057 * If the frame is part of a FR_COL frame, try fitting the frame in that 5058 * frame. If that doesn't work (the FR_COL frame is too small), recursively 5059 * go to containing frames to resize them and make room. 5060 * If the frame is part of a FR_ROW frame, all frames must be resized as well. 5061 * Check for the minimal height of the FR_ROW frame. 5062 * At the top level we can also use change the command line height. 5063 */ 5064 static void 5065 frame_setheight(frame_T *curfrp, int height) 5066 { 5067 int room; /* total number of lines available */ 5068 int take; /* number of lines taken from other windows */ 5069 int room_cmdline; /* lines available from cmdline */ 5070 int run; 5071 frame_T *frp; 5072 int h; 5073 int room_reserved; 5074 5075 /* If the height already is the desired value, nothing to do. */ 5076 if (curfrp->fr_height == height) 5077 return; 5078 5079 if (curfrp->fr_parent == NULL) 5080 { 5081 /* topframe: can only change the command line */ 5082 if (height > ROWS_AVAIL) 5083 height = ROWS_AVAIL; 5084 if (height > 0) 5085 frame_new_height(curfrp, height, FALSE, FALSE); 5086 } 5087 else if (curfrp->fr_parent->fr_layout == FR_ROW) 5088 { 5089 /* Row of frames: Also need to resize frames left and right of this 5090 * one. First check for the minimal height of these. */ 5091 h = frame_minheight(curfrp->fr_parent, NULL); 5092 if (height < h) 5093 height = h; 5094 frame_setheight(curfrp->fr_parent, height); 5095 } 5096 else 5097 { 5098 /* 5099 * Column of frames: try to change only frames in this column. 5100 */ 5101 /* 5102 * Do this twice: 5103 * 1: compute room available, if it's not enough try resizing the 5104 * containing frame. 5105 * 2: compute the room available and adjust the height to it. 5106 * Try not to reduce the height of a window with 'winfixheight' set. 5107 */ 5108 for (run = 1; run <= 2; ++run) 5109 { 5110 room = 0; 5111 room_reserved = 0; 5112 for (frp = curfrp->fr_parent->fr_child; frp != NULL; 5113 frp = frp->fr_next) 5114 { 5115 if (frp != curfrp 5116 && frp->fr_win != NULL 5117 && frp->fr_win->w_p_wfh) 5118 room_reserved += frp->fr_height; 5119 room += frp->fr_height; 5120 if (frp != curfrp) 5121 room -= frame_minheight(frp, NULL); 5122 } 5123 if (curfrp->fr_width != Columns) 5124 room_cmdline = 0; 5125 else 5126 { 5127 room_cmdline = Rows - p_ch - (lastwin->w_winrow 5128 + lastwin->w_height + lastwin->w_status_height); 5129 if (room_cmdline < 0) 5130 room_cmdline = 0; 5131 } 5132 5133 if (height <= room + room_cmdline) 5134 break; 5135 if (run == 2 || curfrp->fr_width == Columns) 5136 { 5137 if (height > room + room_cmdline) 5138 height = room + room_cmdline; 5139 break; 5140 } 5141 frame_setheight(curfrp->fr_parent, height 5142 + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1); 5143 } 5144 5145 /* 5146 * Compute the number of lines we will take from others frames (can be 5147 * negative!). 5148 */ 5149 take = height - curfrp->fr_height; 5150 5151 /* If there is not enough room, also reduce the height of a window 5152 * with 'winfixheight' set. */ 5153 if (height > room + room_cmdline - room_reserved) 5154 room_reserved = room + room_cmdline - height; 5155 /* If there is only a 'winfixheight' window and making the 5156 * window smaller, need to make the other window taller. */ 5157 if (take < 0 && room - curfrp->fr_height < room_reserved) 5158 room_reserved = 0; 5159 5160 if (take > 0 && room_cmdline > 0) 5161 { 5162 /* use lines from cmdline first */ 5163 if (take < room_cmdline) 5164 room_cmdline = take; 5165 take -= room_cmdline; 5166 topframe->fr_height += room_cmdline; 5167 } 5168 5169 /* 5170 * set the current frame to the new height 5171 */ 5172 frame_new_height(curfrp, height, FALSE, FALSE); 5173 5174 /* 5175 * First take lines from the frames after the current frame. If 5176 * that is not enough, takes lines from frames above the current 5177 * frame. 5178 */ 5179 for (run = 0; run < 2; ++run) 5180 { 5181 if (run == 0) 5182 frp = curfrp->fr_next; /* 1st run: start with next window */ 5183 else 5184 frp = curfrp->fr_prev; /* 2nd run: start with prev window */ 5185 while (frp != NULL && take != 0) 5186 { 5187 h = frame_minheight(frp, NULL); 5188 if (room_reserved > 0 5189 && frp->fr_win != NULL 5190 && frp->fr_win->w_p_wfh) 5191 { 5192 if (room_reserved >= frp->fr_height) 5193 room_reserved -= frp->fr_height; 5194 else 5195 { 5196 if (frp->fr_height - room_reserved > take) 5197 room_reserved = frp->fr_height - take; 5198 take -= frp->fr_height - room_reserved; 5199 frame_new_height(frp, room_reserved, FALSE, FALSE); 5200 room_reserved = 0; 5201 } 5202 } 5203 else 5204 { 5205 if (frp->fr_height - take < h) 5206 { 5207 take -= frp->fr_height - h; 5208 frame_new_height(frp, h, FALSE, FALSE); 5209 } 5210 else 5211 { 5212 frame_new_height(frp, frp->fr_height - take, 5213 FALSE, FALSE); 5214 take = 0; 5215 } 5216 } 5217 if (run == 0) 5218 frp = frp->fr_next; 5219 else 5220 frp = frp->fr_prev; 5221 } 5222 } 5223 } 5224 } 5225 5226 /* 5227 * Set current window width and take care of repositioning other windows to 5228 * fit around it. 5229 */ 5230 void 5231 win_setwidth(int width) 5232 { 5233 win_setwidth_win(width, curwin); 5234 } 5235 5236 void 5237 win_setwidth_win(int width, win_T *wp) 5238 { 5239 /* Always keep current window at least one column wide, even when 5240 * 'winminwidth' is zero. */ 5241 if (wp == curwin) 5242 { 5243 if (width < p_wmw) 5244 width = p_wmw; 5245 if (width == 0) 5246 width = 1; 5247 } 5248 5249 frame_setwidth(wp->w_frame, width + wp->w_vsep_width); 5250 5251 /* recompute the window positions */ 5252 (void)win_comp_pos(); 5253 5254 redraw_all_later(NOT_VALID); 5255 } 5256 5257 /* 5258 * Set the width of a frame to "width" and take care that all frames and 5259 * windows inside it are resized. Also resize frames above and below if the 5260 * are in the same FR_ROW frame. 5261 * 5262 * Strategy is similar to frame_setheight(). 5263 */ 5264 static void 5265 frame_setwidth(frame_T *curfrp, int width) 5266 { 5267 int room; /* total number of lines available */ 5268 int take; /* number of lines taken from other windows */ 5269 int run; 5270 frame_T *frp; 5271 int w; 5272 int room_reserved; 5273 5274 /* If the width already is the desired value, nothing to do. */ 5275 if (curfrp->fr_width == width) 5276 return; 5277 5278 if (curfrp->fr_parent == NULL) 5279 /* topframe: can't change width */ 5280 return; 5281 5282 if (curfrp->fr_parent->fr_layout == FR_COL) 5283 { 5284 /* Column of frames: Also need to resize frames above and below of 5285 * this one. First check for the minimal width of these. */ 5286 w = frame_minwidth(curfrp->fr_parent, NULL); 5287 if (width < w) 5288 width = w; 5289 frame_setwidth(curfrp->fr_parent, width); 5290 } 5291 else 5292 { 5293 /* 5294 * Row of frames: try to change only frames in this row. 5295 * 5296 * Do this twice: 5297 * 1: compute room available, if it's not enough try resizing the 5298 * containing frame. 5299 * 2: compute the room available and adjust the width to it. 5300 */ 5301 for (run = 1; run <= 2; ++run) 5302 { 5303 room = 0; 5304 room_reserved = 0; 5305 for (frp = curfrp->fr_parent->fr_child; frp != NULL; 5306 frp = frp->fr_next) 5307 { 5308 if (frp != curfrp 5309 && frp->fr_win != NULL 5310 && frp->fr_win->w_p_wfw) 5311 room_reserved += frp->fr_width; 5312 room += frp->fr_width; 5313 if (frp != curfrp) 5314 room -= frame_minwidth(frp, NULL); 5315 } 5316 5317 if (width <= room) 5318 break; 5319 if (run == 2 || curfrp->fr_height >= ROWS_AVAIL) 5320 { 5321 if (width > room) 5322 width = room; 5323 break; 5324 } 5325 frame_setwidth(curfrp->fr_parent, width 5326 + frame_minwidth(curfrp->fr_parent, NOWIN) - (int)p_wmw - 1); 5327 } 5328 5329 /* 5330 * Compute the number of lines we will take from others frames (can be 5331 * negative!). 5332 */ 5333 take = width - curfrp->fr_width; 5334 5335 /* If there is not enough room, also reduce the width of a window 5336 * with 'winfixwidth' set. */ 5337 if (width > room - room_reserved) 5338 room_reserved = room - width; 5339 /* If there is only a 'winfixwidth' window and making the 5340 * window smaller, need to make the other window narrower. */ 5341 if (take < 0 && room - curfrp->fr_width < room_reserved) 5342 room_reserved = 0; 5343 5344 /* 5345 * set the current frame to the new width 5346 */ 5347 frame_new_width(curfrp, width, FALSE, FALSE); 5348 5349 /* 5350 * First take lines from the frames right of the current frame. If 5351 * that is not enough, takes lines from frames left of the current 5352 * frame. 5353 */ 5354 for (run = 0; run < 2; ++run) 5355 { 5356 if (run == 0) 5357 frp = curfrp->fr_next; /* 1st run: start with next window */ 5358 else 5359 frp = curfrp->fr_prev; /* 2nd run: start with prev window */ 5360 while (frp != NULL && take != 0) 5361 { 5362 w = frame_minwidth(frp, NULL); 5363 if (room_reserved > 0 5364 && frp->fr_win != NULL 5365 && frp->fr_win->w_p_wfw) 5366 { 5367 if (room_reserved >= frp->fr_width) 5368 room_reserved -= frp->fr_width; 5369 else 5370 { 5371 if (frp->fr_width - room_reserved > take) 5372 room_reserved = frp->fr_width - take; 5373 take -= frp->fr_width - room_reserved; 5374 frame_new_width(frp, room_reserved, FALSE, FALSE); 5375 room_reserved = 0; 5376 } 5377 } 5378 else 5379 { 5380 if (frp->fr_width - take < w) 5381 { 5382 take -= frp->fr_width - w; 5383 frame_new_width(frp, w, FALSE, FALSE); 5384 } 5385 else 5386 { 5387 frame_new_width(frp, frp->fr_width - take, 5388 FALSE, FALSE); 5389 take = 0; 5390 } 5391 } 5392 if (run == 0) 5393 frp = frp->fr_next; 5394 else 5395 frp = frp->fr_prev; 5396 } 5397 } 5398 } 5399 } 5400 5401 /* 5402 * Check 'winminheight' for a valid value. 5403 */ 5404 void 5405 win_setminheight(void) 5406 { 5407 int room; 5408 int first = TRUE; 5409 win_T *wp; 5410 5411 /* loop until there is a 'winminheight' that is possible */ 5412 while (p_wmh > 0) 5413 { 5414 /* TODO: handle vertical splits */ 5415 room = -p_wh; 5416 FOR_ALL_WINDOWS(wp) 5417 room += wp->w_height - p_wmh; 5418 if (room >= 0) 5419 break; 5420 --p_wmh; 5421 if (first) 5422 { 5423 EMSG(_(e_noroom)); 5424 first = FALSE; 5425 } 5426 } 5427 } 5428 5429 #if defined(FEAT_MOUSE) || defined(PROTO) 5430 5431 /* 5432 * Status line of dragwin is dragged "offset" lines down (negative is up). 5433 */ 5434 void 5435 win_drag_status_line(win_T *dragwin, int offset) 5436 { 5437 frame_T *curfr; 5438 frame_T *fr; 5439 int room; 5440 int row; 5441 int up; /* if TRUE, drag status line up, otherwise down */ 5442 int n; 5443 5444 fr = dragwin->w_frame; 5445 curfr = fr; 5446 if (fr != topframe) /* more than one window */ 5447 { 5448 fr = fr->fr_parent; 5449 /* When the parent frame is not a column of frames, its parent should 5450 * be. */ 5451 if (fr->fr_layout != FR_COL) 5452 { 5453 curfr = fr; 5454 if (fr != topframe) /* only a row of windows, may drag statusline */ 5455 fr = fr->fr_parent; 5456 } 5457 } 5458 5459 /* If this is the last frame in a column, may want to resize the parent 5460 * frame instead (go two up to skip a row of frames). */ 5461 while (curfr != topframe && curfr->fr_next == NULL) 5462 { 5463 if (fr != topframe) 5464 fr = fr->fr_parent; 5465 curfr = fr; 5466 if (fr != topframe) 5467 fr = fr->fr_parent; 5468 } 5469 5470 if (offset < 0) /* drag up */ 5471 { 5472 up = TRUE; 5473 offset = -offset; 5474 /* sum up the room of the current frame and above it */ 5475 if (fr == curfr) 5476 { 5477 /* only one window */ 5478 room = fr->fr_height - frame_minheight(fr, NULL); 5479 } 5480 else 5481 { 5482 room = 0; 5483 for (fr = fr->fr_child; ; fr = fr->fr_next) 5484 { 5485 room += fr->fr_height - frame_minheight(fr, NULL); 5486 if (fr == curfr) 5487 break; 5488 } 5489 } 5490 fr = curfr->fr_next; /* put fr at frame that grows */ 5491 } 5492 else /* drag down */ 5493 { 5494 up = FALSE; 5495 /* 5496 * Only dragging the last status line can reduce p_ch. 5497 */ 5498 room = Rows - cmdline_row; 5499 if (curfr->fr_next == NULL) 5500 room -= 1; 5501 else 5502 room -= p_ch; 5503 if (room < 0) 5504 room = 0; 5505 /* sum up the room of frames below of the current one */ 5506 for (fr = curfr->fr_next; fr != NULL; fr = fr->fr_next) 5507 room += fr->fr_height - frame_minheight(fr, NULL); 5508 fr = curfr; /* put fr at window that grows */ 5509 } 5510 5511 if (room < offset) /* Not enough room */ 5512 offset = room; /* Move as far as we can */ 5513 if (offset <= 0) 5514 return; 5515 5516 /* 5517 * Grow frame fr by "offset" lines. 5518 * Doesn't happen when dragging the last status line up. 5519 */ 5520 if (fr != NULL) 5521 frame_new_height(fr, fr->fr_height + offset, up, FALSE); 5522 5523 if (up) 5524 fr = curfr; /* current frame gets smaller */ 5525 else 5526 fr = curfr->fr_next; /* next frame gets smaller */ 5527 5528 /* 5529 * Now make the other frames smaller. 5530 */ 5531 while (fr != NULL && offset > 0) 5532 { 5533 n = frame_minheight(fr, NULL); 5534 if (fr->fr_height - offset <= n) 5535 { 5536 offset -= fr->fr_height - n; 5537 frame_new_height(fr, n, !up, FALSE); 5538 } 5539 else 5540 { 5541 frame_new_height(fr, fr->fr_height - offset, !up, FALSE); 5542 break; 5543 } 5544 if (up) 5545 fr = fr->fr_prev; 5546 else 5547 fr = fr->fr_next; 5548 } 5549 row = win_comp_pos(); 5550 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5551 cmdline_row = row; 5552 p_ch = Rows - cmdline_row; 5553 if (p_ch < 1) 5554 p_ch = 1; 5555 curtab->tp_ch_used = p_ch; 5556 redraw_all_later(SOME_VALID); 5557 showmode(); 5558 } 5559 5560 /* 5561 * Separator line of dragwin is dragged "offset" lines right (negative is left). 5562 */ 5563 void 5564 win_drag_vsep_line(win_T *dragwin, int offset) 5565 { 5566 frame_T *curfr; 5567 frame_T *fr; 5568 int room; 5569 int left; /* if TRUE, drag separator line left, otherwise right */ 5570 int n; 5571 5572 fr = dragwin->w_frame; 5573 if (fr == topframe) /* only one window (cannot happen?) */ 5574 return; 5575 curfr = fr; 5576 fr = fr->fr_parent; 5577 /* When the parent frame is not a row of frames, its parent should be. */ 5578 if (fr->fr_layout != FR_ROW) 5579 { 5580 if (fr == topframe) /* only a column of windows (cannot happen?) */ 5581 return; 5582 curfr = fr; 5583 fr = fr->fr_parent; 5584 } 5585 5586 /* If this is the last frame in a row, may want to resize a parent 5587 * frame instead. */ 5588 while (curfr->fr_next == NULL) 5589 { 5590 if (fr == topframe) 5591 break; 5592 curfr = fr; 5593 fr = fr->fr_parent; 5594 if (fr != topframe) 5595 { 5596 curfr = fr; 5597 fr = fr->fr_parent; 5598 } 5599 } 5600 5601 if (offset < 0) /* drag left */ 5602 { 5603 left = TRUE; 5604 offset = -offset; 5605 /* sum up the room of the current frame and left of it */ 5606 room = 0; 5607 for (fr = fr->fr_child; ; fr = fr->fr_next) 5608 { 5609 room += fr->fr_width - frame_minwidth(fr, NULL); 5610 if (fr == curfr) 5611 break; 5612 } 5613 fr = curfr->fr_next; /* put fr at frame that grows */ 5614 } 5615 else /* drag right */ 5616 { 5617 left = FALSE; 5618 /* sum up the room of frames right of the current one */ 5619 room = 0; 5620 for (fr = curfr->fr_next; fr != NULL; fr = fr->fr_next) 5621 room += fr->fr_width - frame_minwidth(fr, NULL); 5622 fr = curfr; /* put fr at window that grows */ 5623 } 5624 5625 if (room < offset) /* Not enough room */ 5626 offset = room; /* Move as far as we can */ 5627 if (offset <= 0) /* No room at all, quit. */ 5628 return; 5629 if (fr == NULL) 5630 return; /* Safety check, should not happen. */ 5631 5632 /* grow frame fr by offset lines */ 5633 frame_new_width(fr, fr->fr_width + offset, left, FALSE); 5634 5635 /* shrink other frames: current and at the left or at the right */ 5636 if (left) 5637 fr = curfr; /* current frame gets smaller */ 5638 else 5639 fr = curfr->fr_next; /* next frame gets smaller */ 5640 5641 while (fr != NULL && offset > 0) 5642 { 5643 n = frame_minwidth(fr, NULL); 5644 if (fr->fr_width - offset <= n) 5645 { 5646 offset -= fr->fr_width - n; 5647 frame_new_width(fr, n, !left, FALSE); 5648 } 5649 else 5650 { 5651 frame_new_width(fr, fr->fr_width - offset, !left, FALSE); 5652 break; 5653 } 5654 if (left) 5655 fr = fr->fr_prev; 5656 else 5657 fr = fr->fr_next; 5658 } 5659 (void)win_comp_pos(); 5660 redraw_all_later(NOT_VALID); 5661 } 5662 #endif /* FEAT_MOUSE */ 5663 5664 #endif /* FEAT_WINDOWS */ 5665 5666 #define FRACTION_MULT 16384L 5667 5668 /* 5669 * Set wp->w_fraction for the current w_wrow and w_height. 5670 */ 5671 void 5672 set_fraction(win_T *wp) 5673 { 5674 wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT 5675 + wp->w_height / 2) / (long)wp->w_height; 5676 } 5677 5678 /* 5679 * Set the height of a window. 5680 * This takes care of the things inside the window, not what happens to the 5681 * window position, the frame or to other windows. 5682 */ 5683 void 5684 win_new_height(win_T *wp, int height) 5685 { 5686 int prev_height = wp->w_height; 5687 5688 /* Don't want a negative height. Happens when splitting a tiny window. 5689 * Will equalize heights soon to fix it. */ 5690 if (height < 0) 5691 height = 0; 5692 if (wp->w_height == height) 5693 return; /* nothing to do */ 5694 5695 if (wp->w_height > 0) 5696 { 5697 if (wp == curwin) 5698 /* w_wrow needs to be valid. When setting 'laststatus' this may 5699 * call win_new_height() recursively. */ 5700 validate_cursor(); 5701 if (wp->w_height != prev_height) 5702 return; /* Recursive call already changed the size, bail out here 5703 to avoid the following to mess things up. */ 5704 if (wp->w_wrow != wp->w_prev_fraction_row) 5705 set_fraction(wp); 5706 } 5707 5708 wp->w_height = height; 5709 wp->w_skipcol = 0; 5710 5711 scroll_to_fraction(wp, prev_height); 5712 } 5713 5714 void 5715 scroll_to_fraction(win_T *wp, int prev_height) 5716 { 5717 linenr_T lnum; 5718 int sline, line_size; 5719 int height = wp->w_height; 5720 5721 /* Don't change w_topline when height is zero. Don't set w_topline when 5722 * 'scrollbind' is set and this isn't the current window. */ 5723 if (height > 0 5724 #ifdef FEAT_SCROLLBIND 5725 && (!wp->w_p_scb || wp == curwin) 5726 #endif 5727 ) 5728 { 5729 /* 5730 * Find a value for w_topline that shows the cursor at the same 5731 * relative position in the window as before (more or less). 5732 */ 5733 lnum = wp->w_cursor.lnum; 5734 if (lnum < 1) /* can happen when starting up */ 5735 lnum = 1; 5736 wp->w_wrow = ((long)wp->w_fraction * (long)height - 1L 5737 + FRACTION_MULT / 2) / FRACTION_MULT; 5738 line_size = plines_win_col(wp, lnum, (long)(wp->w_cursor.col)) - 1; 5739 sline = wp->w_wrow - line_size; 5740 5741 if (sline >= 0) 5742 { 5743 /* Make sure the whole cursor line is visible, if possible. */ 5744 int rows = plines_win(wp, lnum, FALSE); 5745 5746 if (sline > wp->w_height - rows) 5747 { 5748 sline = wp->w_height - rows; 5749 wp->w_wrow -= rows - line_size; 5750 } 5751 } 5752 5753 if (sline < 0) 5754 { 5755 /* 5756 * Cursor line would go off top of screen if w_wrow was this high. 5757 * Make cursor line the first line in the window. If not enough 5758 * room use w_skipcol; 5759 */ 5760 wp->w_wrow = line_size; 5761 if (wp->w_wrow >= wp->w_height 5762 && (W_WIDTH(wp) - win_col_off(wp)) > 0) 5763 { 5764 wp->w_skipcol += W_WIDTH(wp) - win_col_off(wp); 5765 --wp->w_wrow; 5766 while (wp->w_wrow >= wp->w_height) 5767 { 5768 wp->w_skipcol += W_WIDTH(wp) - win_col_off(wp) 5769 + win_col_off2(wp); 5770 --wp->w_wrow; 5771 } 5772 } 5773 set_topline(wp, lnum); 5774 } 5775 else if (sline > 0) 5776 { 5777 while (sline > 0 && lnum > 1) 5778 { 5779 #ifdef FEAT_FOLDING 5780 hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); 5781 if (lnum == 1) 5782 { 5783 /* first line in buffer is folded */ 5784 line_size = 1; 5785 --sline; 5786 break; 5787 } 5788 #endif 5789 --lnum; 5790 #ifdef FEAT_DIFF 5791 if (lnum == wp->w_topline) 5792 line_size = plines_win_nofill(wp, lnum, TRUE) 5793 + wp->w_topfill; 5794 else 5795 #endif 5796 line_size = plines_win(wp, lnum, TRUE); 5797 sline -= line_size; 5798 } 5799 5800 if (sline < 0) 5801 { 5802 /* 5803 * Line we want at top would go off top of screen. Use next 5804 * line instead. 5805 */ 5806 #ifdef FEAT_FOLDING 5807 hasFoldingWin(wp, lnum, NULL, &lnum, TRUE, NULL); 5808 #endif 5809 lnum++; 5810 wp->w_wrow -= line_size + sline; 5811 } 5812 else if (sline > 0) 5813 { 5814 /* First line of file reached, use that as topline. */ 5815 lnum = 1; 5816 wp->w_wrow -= sline; 5817 } 5818 5819 set_topline(wp, lnum); 5820 } 5821 } 5822 5823 if (wp == curwin) 5824 { 5825 if (p_so) 5826 update_topline(); 5827 curs_columns(FALSE); /* validate w_wrow */ 5828 } 5829 if (prev_height > 0) 5830 wp->w_prev_fraction_row = wp->w_wrow; 5831 5832 win_comp_scroll(wp); 5833 redraw_win_later(wp, SOME_VALID); 5834 #ifdef FEAT_WINDOWS 5835 wp->w_redr_status = TRUE; 5836 #endif 5837 invalidate_botline_win(wp); 5838 } 5839 5840 #ifdef FEAT_WINDOWS 5841 /* 5842 * Set the width of a window. 5843 */ 5844 void 5845 win_new_width(win_T *wp, int width) 5846 { 5847 wp->w_width = width; 5848 wp->w_lines_valid = 0; 5849 changed_line_abv_curs_win(wp); 5850 invalidate_botline_win(wp); 5851 if (wp == curwin) 5852 { 5853 update_topline(); 5854 curs_columns(TRUE); /* validate w_wrow */ 5855 } 5856 redraw_win_later(wp, NOT_VALID); 5857 wp->w_redr_status = TRUE; 5858 } 5859 #endif 5860 5861 void 5862 win_comp_scroll(win_T *wp) 5863 { 5864 wp->w_p_scr = ((unsigned)wp->w_height >> 1); 5865 if (wp->w_p_scr == 0) 5866 wp->w_p_scr = 1; 5867 } 5868 5869 /* 5870 * command_height: called whenever p_ch has been changed 5871 */ 5872 void 5873 command_height(void) 5874 { 5875 #ifdef FEAT_WINDOWS 5876 int h; 5877 frame_T *frp; 5878 int old_p_ch = curtab->tp_ch_used; 5879 5880 /* Use the value of p_ch that we remembered. This is needed for when the 5881 * GUI starts up, we can't be sure in what order things happen. And when 5882 * p_ch was changed in another tab page. */ 5883 curtab->tp_ch_used = p_ch; 5884 5885 /* Find bottom frame with width of screen. */ 5886 frp = lastwin->w_frame; 5887 while (frp->fr_width != Columns && frp->fr_parent != NULL) 5888 frp = frp->fr_parent; 5889 5890 /* Avoid changing the height of a window with 'winfixheight' set. */ 5891 while (frp->fr_prev != NULL && frp->fr_layout == FR_LEAF 5892 && frp->fr_win->w_p_wfh) 5893 frp = frp->fr_prev; 5894 5895 if (starting != NO_SCREEN) 5896 { 5897 cmdline_row = Rows - p_ch; 5898 5899 if (p_ch > old_p_ch) /* p_ch got bigger */ 5900 { 5901 while (p_ch > old_p_ch) 5902 { 5903 if (frp == NULL) 5904 { 5905 EMSG(_(e_noroom)); 5906 p_ch = old_p_ch; 5907 curtab->tp_ch_used = p_ch; 5908 cmdline_row = Rows - p_ch; 5909 break; 5910 } 5911 h = frp->fr_height - frame_minheight(frp, NULL); 5912 if (h > p_ch - old_p_ch) 5913 h = p_ch - old_p_ch; 5914 old_p_ch += h; 5915 frame_add_height(frp, -h); 5916 frp = frp->fr_prev; 5917 } 5918 5919 /* Recompute window positions. */ 5920 (void)win_comp_pos(); 5921 5922 /* clear the lines added to cmdline */ 5923 if (full_screen) 5924 screen_fill((int)(cmdline_row), (int)Rows, 0, 5925 (int)Columns, ' ', ' ', 0); 5926 msg_row = cmdline_row; 5927 redraw_cmdline = TRUE; 5928 return; 5929 } 5930 5931 if (msg_row < cmdline_row) 5932 msg_row = cmdline_row; 5933 redraw_cmdline = TRUE; 5934 } 5935 frame_add_height(frp, (int)(old_p_ch - p_ch)); 5936 5937 /* Recompute window positions. */ 5938 if (frp != lastwin->w_frame) 5939 (void)win_comp_pos(); 5940 #else 5941 cmdline_row = Rows - p_ch; 5942 win_setheight(cmdline_row); 5943 #endif 5944 } 5945 5946 #if defined(FEAT_WINDOWS) || defined(PROTO) 5947 /* 5948 * Resize frame "frp" to be "n" lines higher (negative for less high). 5949 * Also resize the frames it is contained in. 5950 */ 5951 static void 5952 frame_add_height(frame_T *frp, int n) 5953 { 5954 frame_new_height(frp, frp->fr_height + n, FALSE, FALSE); 5955 for (;;) 5956 { 5957 frp = frp->fr_parent; 5958 if (frp == NULL) 5959 break; 5960 frp->fr_height += n; 5961 } 5962 } 5963 5964 /* 5965 * Add or remove a status line for the bottom window(s), according to the 5966 * value of 'laststatus'. 5967 */ 5968 void 5969 last_status( 5970 int morewin) /* pretend there are two or more windows */ 5971 { 5972 /* Don't make a difference between horizontal or vertical split. */ 5973 last_status_rec(topframe, (p_ls == 2 5974 || (p_ls == 1 && (morewin || lastwin != firstwin)))); 5975 } 5976 5977 static void 5978 last_status_rec(frame_T *fr, int statusline) 5979 { 5980 frame_T *fp; 5981 win_T *wp; 5982 5983 if (fr->fr_layout == FR_LEAF) 5984 { 5985 wp = fr->fr_win; 5986 if (wp->w_status_height != 0 && !statusline) 5987 { 5988 /* remove status line */ 5989 win_new_height(wp, wp->w_height + 1); 5990 wp->w_status_height = 0; 5991 comp_col(); 5992 } 5993 else if (wp->w_status_height == 0 && statusline) 5994 { 5995 /* Find a frame to take a line from. */ 5996 fp = fr; 5997 while (fp->fr_height <= frame_minheight(fp, NULL)) 5998 { 5999 if (fp == topframe) 6000 { 6001 EMSG(_(e_noroom)); 6002 return; 6003 } 6004 /* In a column of frames: go to frame above. If already at 6005 * the top or in a row of frames: go to parent. */ 6006 if (fp->fr_parent->fr_layout == FR_COL && fp->fr_prev != NULL) 6007 fp = fp->fr_prev; 6008 else 6009 fp = fp->fr_parent; 6010 } 6011 wp->w_status_height = 1; 6012 if (fp != fr) 6013 { 6014 frame_new_height(fp, fp->fr_height - 1, FALSE, FALSE); 6015 frame_fix_height(wp); 6016 (void)win_comp_pos(); 6017 } 6018 else 6019 win_new_height(wp, wp->w_height - 1); 6020 comp_col(); 6021 redraw_all_later(SOME_VALID); 6022 } 6023 } 6024 else if (fr->fr_layout == FR_ROW) 6025 { 6026 /* vertically split windows, set status line for each one */ 6027 for (fp = fr->fr_child; fp != NULL; fp = fp->fr_next) 6028 last_status_rec(fp, statusline); 6029 } 6030 else 6031 { 6032 /* horizontally split window, set status line for last one */ 6033 for (fp = fr->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 6034 ; 6035 last_status_rec(fp, statusline); 6036 } 6037 } 6038 6039 /* 6040 * Return the number of lines used by the tab page line. 6041 */ 6042 int 6043 tabline_height(void) 6044 { 6045 #ifdef FEAT_GUI_TABLINE 6046 /* When the GUI has the tabline then this always returns zero. */ 6047 if (gui_use_tabline()) 6048 return 0; 6049 #endif 6050 switch (p_stal) 6051 { 6052 case 0: return 0; 6053 case 1: return (first_tabpage->tp_next == NULL) ? 0 : 1; 6054 } 6055 return 1; 6056 } 6057 6058 #endif /* FEAT_WINDOWS */ 6059 6060 #if defined(FEAT_SEARCHPATH) || defined(PROTO) 6061 /* 6062 * Get the file name at the cursor. 6063 * If Visual mode is active, use the selected text if it's in one line. 6064 * Returns the name in allocated memory, NULL for failure. 6065 */ 6066 char_u * 6067 grab_file_name(long count, linenr_T *file_lnum) 6068 { 6069 int options = FNAME_MESS|FNAME_EXP|FNAME_REL|FNAME_UNESC; 6070 6071 if (VIsual_active) 6072 { 6073 int len; 6074 char_u *ptr; 6075 6076 if (get_visual_text(NULL, &ptr, &len) == FAIL) 6077 return NULL; 6078 return find_file_name_in_path(ptr, len, options, 6079 count, curbuf->b_ffname); 6080 } 6081 return file_name_at_cursor(options | FNAME_HYP, count, file_lnum); 6082 6083 } 6084 6085 /* 6086 * Return the file name under or after the cursor. 6087 * 6088 * The 'path' option is searched if the file name is not absolute. 6089 * The string returned has been alloc'ed and should be freed by the caller. 6090 * NULL is returned if the file name or file is not found. 6091 * 6092 * options: 6093 * FNAME_MESS give error messages 6094 * FNAME_EXP expand to path 6095 * FNAME_HYP check for hypertext link 6096 * FNAME_INCL apply "includeexpr" 6097 */ 6098 char_u * 6099 file_name_at_cursor(int options, long count, linenr_T *file_lnum) 6100 { 6101 return file_name_in_line(ml_get_curline(), 6102 curwin->w_cursor.col, options, count, curbuf->b_ffname, 6103 file_lnum); 6104 } 6105 6106 /* 6107 * Return the name of the file under or after ptr[col]. 6108 * Otherwise like file_name_at_cursor(). 6109 */ 6110 char_u * 6111 file_name_in_line( 6112 char_u *line, 6113 int col, 6114 int options, 6115 long count, 6116 char_u *rel_fname, /* file we are searching relative to */ 6117 linenr_T *file_lnum) /* line number after the file name */ 6118 { 6119 char_u *ptr; 6120 int len; 6121 6122 /* 6123 * search forward for what could be the start of a file name 6124 */ 6125 ptr = line + col; 6126 while (*ptr != NUL && !vim_isfilec(*ptr)) 6127 mb_ptr_adv(ptr); 6128 if (*ptr == NUL) /* nothing found */ 6129 { 6130 if (options & FNAME_MESS) 6131 EMSG(_("E446: No file name under cursor")); 6132 return NULL; 6133 } 6134 6135 /* 6136 * Search backward for first char of the file name. 6137 * Go one char back to ":" before "//" even when ':' is not in 'isfname'. 6138 */ 6139 while (ptr > line) 6140 { 6141 #ifdef FEAT_MBYTE 6142 if (has_mbyte && (len = (*mb_head_off)(line, ptr - 1)) > 0) 6143 ptr -= len + 1; 6144 else 6145 #endif 6146 if (vim_isfilec(ptr[-1]) 6147 || ((options & FNAME_HYP) && path_is_url(ptr - 1))) 6148 --ptr; 6149 else 6150 break; 6151 } 6152 6153 /* 6154 * Search forward for the last char of the file name. 6155 * Also allow "://" when ':' is not in 'isfname'. 6156 */ 6157 len = 0; 6158 while (vim_isfilec(ptr[len]) || (ptr[len] == '\\' && ptr[len + 1] == ' ') 6159 || ((options & FNAME_HYP) && path_is_url(ptr + len))) 6160 { 6161 if (ptr[len] == '\\') 6162 /* Skip over the "\" in "\ ". */ 6163 ++len; 6164 #ifdef FEAT_MBYTE 6165 if (has_mbyte) 6166 len += (*mb_ptr2len)(ptr + len); 6167 else 6168 #endif 6169 ++len; 6170 } 6171 6172 /* 6173 * If there is trailing punctuation, remove it. 6174 * But don't remove "..", could be a directory name. 6175 */ 6176 if (len > 2 && vim_strchr((char_u *)".,:;!", ptr[len - 1]) != NULL 6177 && ptr[len - 2] != '.') 6178 --len; 6179 6180 if (file_lnum != NULL) 6181 { 6182 char_u *p; 6183 6184 /* Get the number after the file name and a separator character */ 6185 p = ptr + len; 6186 p = skipwhite(p); 6187 if (*p != NUL) 6188 { 6189 if (!isdigit(*p)) 6190 ++p; /* skip the separator */ 6191 p = skipwhite(p); 6192 if (isdigit(*p)) 6193 *file_lnum = (int)getdigits(&p); 6194 } 6195 } 6196 6197 return find_file_name_in_path(ptr, len, options, count, rel_fname); 6198 } 6199 6200 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6201 static char_u *eval_includeexpr(char_u *ptr, int len); 6202 6203 static char_u * 6204 eval_includeexpr(char_u *ptr, int len) 6205 { 6206 char_u *res; 6207 6208 set_vim_var_string(VV_FNAME, ptr, len); 6209 res = eval_to_string_safe(curbuf->b_p_inex, NULL, 6210 was_set_insecurely((char_u *)"includeexpr", OPT_LOCAL)); 6211 set_vim_var_string(VV_FNAME, NULL, 0); 6212 return res; 6213 } 6214 #endif 6215 6216 /* 6217 * Return the name of the file ptr[len] in 'path'. 6218 * Otherwise like file_name_at_cursor(). 6219 */ 6220 char_u * 6221 find_file_name_in_path( 6222 char_u *ptr, 6223 int len, 6224 int options, 6225 long count, 6226 char_u *rel_fname) /* file we are searching relative to */ 6227 { 6228 char_u *file_name; 6229 int c; 6230 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6231 char_u *tofree = NULL; 6232 6233 if ((options & FNAME_INCL) && *curbuf->b_p_inex != NUL) 6234 { 6235 tofree = eval_includeexpr(ptr, len); 6236 if (tofree != NULL) 6237 { 6238 ptr = tofree; 6239 len = (int)STRLEN(ptr); 6240 } 6241 } 6242 # endif 6243 6244 if (options & FNAME_EXP) 6245 { 6246 file_name = find_file_in_path(ptr, len, options & ~FNAME_MESS, 6247 TRUE, rel_fname); 6248 6249 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6250 /* 6251 * If the file could not be found in a normal way, try applying 6252 * 'includeexpr' (unless done already). 6253 */ 6254 if (file_name == NULL 6255 && !(options & FNAME_INCL) && *curbuf->b_p_inex != NUL) 6256 { 6257 tofree = eval_includeexpr(ptr, len); 6258 if (tofree != NULL) 6259 { 6260 ptr = tofree; 6261 len = (int)STRLEN(ptr); 6262 file_name = find_file_in_path(ptr, len, options & ~FNAME_MESS, 6263 TRUE, rel_fname); 6264 } 6265 } 6266 # endif 6267 if (file_name == NULL && (options & FNAME_MESS)) 6268 { 6269 c = ptr[len]; 6270 ptr[len] = NUL; 6271 EMSG2(_("E447: Can't find file \"%s\" in path"), ptr); 6272 ptr[len] = c; 6273 } 6274 6275 /* Repeat finding the file "count" times. This matters when it 6276 * appears several times in the path. */ 6277 while (file_name != NULL && --count > 0) 6278 { 6279 vim_free(file_name); 6280 file_name = find_file_in_path(ptr, len, options, FALSE, rel_fname); 6281 } 6282 } 6283 else 6284 file_name = vim_strnsave(ptr, len); 6285 6286 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6287 vim_free(tofree); 6288 # endif 6289 6290 return file_name; 6291 } 6292 #endif /* FEAT_SEARCHPATH */ 6293 6294 /* 6295 * Check if the "://" of a URL is at the pointer, return URL_SLASH. 6296 * Also check for ":\\", which MS Internet Explorer accepts, return 6297 * URL_BACKSLASH. 6298 */ 6299 static int 6300 path_is_url(char_u *p) 6301 { 6302 if (STRNCMP(p, "://", (size_t)3) == 0) 6303 return URL_SLASH; 6304 else if (STRNCMP(p, ":\\\\", (size_t)3) == 0) 6305 return URL_BACKSLASH; 6306 return 0; 6307 } 6308 6309 /* 6310 * Check if "fname" starts with "name://". Return URL_SLASH if it does. 6311 * Return URL_BACKSLASH for "name:\\". 6312 * Return zero otherwise. 6313 */ 6314 int 6315 path_with_url(char_u *fname) 6316 { 6317 char_u *p; 6318 6319 for (p = fname; isalpha(*p); ++p) 6320 ; 6321 return path_is_url(p); 6322 } 6323 6324 /* 6325 * Return TRUE if "name" is a full (absolute) path name or URL. 6326 */ 6327 int 6328 vim_isAbsName(char_u *name) 6329 { 6330 return (path_with_url(name) != 0 || mch_isFullName(name)); 6331 } 6332 6333 /* 6334 * Get absolute file name into buffer "buf[len]". 6335 * 6336 * return FAIL for failure, OK otherwise 6337 */ 6338 int 6339 vim_FullName( 6340 char_u *fname, 6341 char_u *buf, 6342 int len, 6343 int force) /* force expansion even when already absolute */ 6344 { 6345 int retval = OK; 6346 int url; 6347 6348 *buf = NUL; 6349 if (fname == NULL) 6350 return FAIL; 6351 6352 url = path_with_url(fname); 6353 if (!url) 6354 retval = mch_FullName(fname, buf, len, force); 6355 if (url || retval == FAIL) 6356 { 6357 /* something failed; use the file name (truncate when too long) */ 6358 vim_strncpy(buf, fname, len - 1); 6359 } 6360 #if defined(MACOS_CLASSIC) || defined(MSWIN) 6361 slash_adjust(buf); 6362 #endif 6363 return retval; 6364 } 6365 6366 /* 6367 * Return the minimal number of rows that is needed on the screen to display 6368 * the current number of windows. 6369 */ 6370 int 6371 min_rows(void) 6372 { 6373 int total; 6374 #ifdef FEAT_WINDOWS 6375 tabpage_T *tp; 6376 int n; 6377 #endif 6378 6379 if (firstwin == NULL) /* not initialized yet */ 6380 return MIN_LINES; 6381 6382 #ifdef FEAT_WINDOWS 6383 total = 0; 6384 FOR_ALL_TABPAGES(tp) 6385 { 6386 n = frame_minheight(tp->tp_topframe, NULL); 6387 if (total < n) 6388 total = n; 6389 } 6390 total += tabline_height(); 6391 #else 6392 total = 1; /* at least one window should have a line! */ 6393 #endif 6394 total += 1; /* count the room for the command line */ 6395 return total; 6396 } 6397 6398 /* 6399 * Return TRUE if there is only one window (in the current tab page), not 6400 * counting a help or preview window, unless it is the current window. 6401 * Does not count "aucmd_win". 6402 */ 6403 int 6404 only_one_window(void) 6405 { 6406 #ifdef FEAT_WINDOWS 6407 int count = 0; 6408 win_T *wp; 6409 6410 /* If there is another tab page there always is another window. */ 6411 if (first_tabpage->tp_next != NULL) 6412 return FALSE; 6413 6414 FOR_ALL_WINDOWS(wp) 6415 if (wp->w_buffer != NULL 6416 && (!((wp->w_buffer->b_help && !curbuf->b_help) 6417 # ifdef FEAT_QUICKFIX 6418 || wp->w_p_pvw 6419 # endif 6420 ) || wp == curwin) 6421 # ifdef FEAT_AUTOCMD 6422 && wp != aucmd_win 6423 # endif 6424 ) 6425 ++count; 6426 return (count <= 1); 6427 #else 6428 return TRUE; 6429 #endif 6430 } 6431 6432 #if defined(FEAT_WINDOWS) || defined(FEAT_AUTOCMD) || defined(PROTO) 6433 /* 6434 * Correct the cursor line number in other windows. Used after changing the 6435 * current buffer, and before applying autocommands. 6436 * When "do_curwin" is TRUE, also check current window. 6437 */ 6438 void 6439 check_lnums(int do_curwin) 6440 { 6441 win_T *wp; 6442 6443 #ifdef FEAT_WINDOWS 6444 tabpage_T *tp; 6445 6446 FOR_ALL_TAB_WINDOWS(tp, wp) 6447 if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) 6448 #else 6449 wp = curwin; 6450 if (do_curwin) 6451 #endif 6452 { 6453 if (wp->w_cursor.lnum > curbuf->b_ml.ml_line_count) 6454 wp->w_cursor.lnum = curbuf->b_ml.ml_line_count; 6455 if (wp->w_topline > curbuf->b_ml.ml_line_count) 6456 wp->w_topline = curbuf->b_ml.ml_line_count; 6457 } 6458 } 6459 #endif 6460 6461 #if defined(FEAT_WINDOWS) || defined(PROTO) 6462 6463 /* 6464 * A snapshot of the window sizes, to restore them after closing the help 6465 * window. 6466 * Only these fields are used: 6467 * fr_layout 6468 * fr_width 6469 * fr_height 6470 * fr_next 6471 * fr_child 6472 * fr_win (only valid for the old curwin, NULL otherwise) 6473 */ 6474 6475 /* 6476 * Create a snapshot of the current frame sizes. 6477 */ 6478 void 6479 make_snapshot(int idx) 6480 { 6481 clear_snapshot(curtab, idx); 6482 make_snapshot_rec(topframe, &curtab->tp_snapshot[idx]); 6483 } 6484 6485 static void 6486 make_snapshot_rec(frame_T *fr, frame_T **frp) 6487 { 6488 *frp = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); 6489 if (*frp == NULL) 6490 return; 6491 (*frp)->fr_layout = fr->fr_layout; 6492 (*frp)->fr_width = fr->fr_width; 6493 (*frp)->fr_height = fr->fr_height; 6494 if (fr->fr_next != NULL) 6495 make_snapshot_rec(fr->fr_next, &((*frp)->fr_next)); 6496 if (fr->fr_child != NULL) 6497 make_snapshot_rec(fr->fr_child, &((*frp)->fr_child)); 6498 if (fr->fr_layout == FR_LEAF && fr->fr_win == curwin) 6499 (*frp)->fr_win = curwin; 6500 } 6501 6502 /* 6503 * Remove any existing snapshot. 6504 */ 6505 static void 6506 clear_snapshot(tabpage_T *tp, int idx) 6507 { 6508 clear_snapshot_rec(tp->tp_snapshot[idx]); 6509 tp->tp_snapshot[idx] = NULL; 6510 } 6511 6512 static void 6513 clear_snapshot_rec(frame_T *fr) 6514 { 6515 if (fr != NULL) 6516 { 6517 clear_snapshot_rec(fr->fr_next); 6518 clear_snapshot_rec(fr->fr_child); 6519 vim_free(fr); 6520 } 6521 } 6522 6523 /* 6524 * Restore a previously created snapshot, if there is any. 6525 * This is only done if the screen size didn't change and the window layout is 6526 * still the same. 6527 */ 6528 void 6529 restore_snapshot( 6530 int idx, 6531 int close_curwin) /* closing current window */ 6532 { 6533 win_T *wp; 6534 6535 if (curtab->tp_snapshot[idx] != NULL 6536 && curtab->tp_snapshot[idx]->fr_width == topframe->fr_width 6537 && curtab->tp_snapshot[idx]->fr_height == topframe->fr_height 6538 && check_snapshot_rec(curtab->tp_snapshot[idx], topframe) == OK) 6539 { 6540 wp = restore_snapshot_rec(curtab->tp_snapshot[idx], topframe); 6541 win_comp_pos(); 6542 if (wp != NULL && close_curwin) 6543 win_goto(wp); 6544 redraw_all_later(CLEAR); 6545 } 6546 clear_snapshot(curtab, idx); 6547 } 6548 6549 /* 6550 * Check if frames "sn" and "fr" have the same layout, same following frames 6551 * and same children. 6552 */ 6553 static int 6554 check_snapshot_rec(frame_T *sn, frame_T *fr) 6555 { 6556 if (sn->fr_layout != fr->fr_layout 6557 || (sn->fr_next == NULL) != (fr->fr_next == NULL) 6558 || (sn->fr_child == NULL) != (fr->fr_child == NULL) 6559 || (sn->fr_next != NULL 6560 && check_snapshot_rec(sn->fr_next, fr->fr_next) == FAIL) 6561 || (sn->fr_child != NULL 6562 && check_snapshot_rec(sn->fr_child, fr->fr_child) == FAIL)) 6563 return FAIL; 6564 return OK; 6565 } 6566 6567 /* 6568 * Copy the size of snapshot frame "sn" to frame "fr". Do the same for all 6569 * following frames and children. 6570 * Returns a pointer to the old current window, or NULL. 6571 */ 6572 static win_T * 6573 restore_snapshot_rec(frame_T *sn, frame_T *fr) 6574 { 6575 win_T *wp = NULL; 6576 win_T *wp2; 6577 6578 fr->fr_height = sn->fr_height; 6579 fr->fr_width = sn->fr_width; 6580 if (fr->fr_layout == FR_LEAF) 6581 { 6582 frame_new_height(fr, fr->fr_height, FALSE, FALSE); 6583 frame_new_width(fr, fr->fr_width, FALSE, FALSE); 6584 wp = sn->fr_win; 6585 } 6586 if (sn->fr_next != NULL) 6587 { 6588 wp2 = restore_snapshot_rec(sn->fr_next, fr->fr_next); 6589 if (wp2 != NULL) 6590 wp = wp2; 6591 } 6592 if (sn->fr_child != NULL) 6593 { 6594 wp2 = restore_snapshot_rec(sn->fr_child, fr->fr_child); 6595 if (wp2 != NULL) 6596 wp = wp2; 6597 } 6598 return wp; 6599 } 6600 6601 #endif 6602 6603 #if defined(FEAT_EVAL) || defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) \ 6604 || defined(PROTO) 6605 /* 6606 * Set "win" to be the curwin and "tp" to be the current tab page. 6607 * restore_win() MUST be called to undo, also when FAIL is returned. 6608 * No autocommands will be executed until restore_win() is called. 6609 * When "no_display" is TRUE the display won't be affected, no redraw is 6610 * triggered, another tabpage access is limited. 6611 * Returns FAIL if switching to "win" failed. 6612 */ 6613 int 6614 switch_win( 6615 win_T **save_curwin UNUSED, 6616 tabpage_T **save_curtab UNUSED, 6617 win_T *win UNUSED, 6618 tabpage_T *tp UNUSED, 6619 int no_display UNUSED) 6620 { 6621 # ifdef FEAT_AUTOCMD 6622 block_autocmds(); 6623 # endif 6624 # ifdef FEAT_WINDOWS 6625 *save_curwin = curwin; 6626 if (tp != NULL) 6627 { 6628 *save_curtab = curtab; 6629 if (no_display) 6630 { 6631 curtab->tp_firstwin = firstwin; 6632 curtab->tp_lastwin = lastwin; 6633 curtab = tp; 6634 firstwin = curtab->tp_firstwin; 6635 lastwin = curtab->tp_lastwin; 6636 } 6637 else 6638 goto_tabpage_tp(tp, FALSE, FALSE); 6639 } 6640 if (!win_valid(win)) 6641 return FAIL; 6642 curwin = win; 6643 curbuf = curwin->w_buffer; 6644 # endif 6645 return OK; 6646 } 6647 6648 /* 6649 * Restore current tabpage and window saved by switch_win(), if still valid. 6650 * When "no_display" is TRUE the display won't be affected, no redraw is 6651 * triggered. 6652 */ 6653 void 6654 restore_win( 6655 win_T *save_curwin UNUSED, 6656 tabpage_T *save_curtab UNUSED, 6657 int no_display UNUSED) 6658 { 6659 # ifdef FEAT_WINDOWS 6660 if (save_curtab != NULL && valid_tabpage(save_curtab)) 6661 { 6662 if (no_display) 6663 { 6664 curtab->tp_firstwin = firstwin; 6665 curtab->tp_lastwin = lastwin; 6666 curtab = save_curtab; 6667 firstwin = curtab->tp_firstwin; 6668 lastwin = curtab->tp_lastwin; 6669 } 6670 else 6671 goto_tabpage_tp(save_curtab, FALSE, FALSE); 6672 } 6673 if (win_valid(save_curwin)) 6674 { 6675 curwin = save_curwin; 6676 curbuf = curwin->w_buffer; 6677 } 6678 # endif 6679 # ifdef FEAT_AUTOCMD 6680 unblock_autocmds(); 6681 # endif 6682 } 6683 6684 /* 6685 * Make "buf" the current buffer. restore_buffer() MUST be called to undo. 6686 * No autocommands will be executed. Use aucmd_prepbuf() if there are any. 6687 */ 6688 void 6689 switch_buffer(bufref_T *save_curbuf, buf_T *buf) 6690 { 6691 # ifdef FEAT_AUTOCMD 6692 block_autocmds(); 6693 # endif 6694 set_bufref(save_curbuf, curbuf); 6695 --curbuf->b_nwindows; 6696 curbuf = buf; 6697 curwin->w_buffer = buf; 6698 ++curbuf->b_nwindows; 6699 } 6700 6701 /* 6702 * Restore the current buffer after using switch_buffer(). 6703 */ 6704 void 6705 restore_buffer(bufref_T *save_curbuf) 6706 { 6707 # ifdef FEAT_AUTOCMD 6708 unblock_autocmds(); 6709 # endif 6710 /* Check for valid buffer, just in case. */ 6711 if (bufref_valid(save_curbuf)) 6712 { 6713 --curbuf->b_nwindows; 6714 curwin->w_buffer = save_curbuf->br_buf; 6715 curbuf = save_curbuf->br_buf; 6716 ++curbuf->b_nwindows; 6717 } 6718 } 6719 #endif 6720 6721 #if (defined(FEAT_GUI) && defined(FEAT_WINDOWS)) || defined(PROTO) 6722 /* 6723 * Return TRUE if there is any vertically split window. 6724 */ 6725 int 6726 win_hasvertsplit(void) 6727 { 6728 frame_T *fr; 6729 6730 if (topframe->fr_layout == FR_ROW) 6731 return TRUE; 6732 6733 if (topframe->fr_layout == FR_COL) 6734 for (fr = topframe->fr_child; fr != NULL; fr = fr->fr_next) 6735 if (fr->fr_layout == FR_ROW) 6736 return TRUE; 6737 6738 return FALSE; 6739 } 6740 #endif 6741 6742 #if defined(FEAT_SEARCH_EXTRA) || defined(PROTO) 6743 /* 6744 * Add match to the match list of window 'wp'. The pattern 'pat' will be 6745 * highlighted with the group 'grp' with priority 'prio'. 6746 * Optionally, a desired ID 'id' can be specified (greater than or equal to 1). 6747 * If no particular ID is desired, -1 must be specified for 'id'. 6748 * Return ID of added match, -1 on failure. 6749 */ 6750 int 6751 match_add( 6752 win_T *wp, 6753 char_u *grp, 6754 char_u *pat, 6755 int prio, 6756 int id, 6757 list_T *pos_list, 6758 char_u *conceal_char UNUSED) /* pointer to conceal replacement char */ 6759 { 6760 matchitem_T *cur; 6761 matchitem_T *prev; 6762 matchitem_T *m; 6763 int hlg_id; 6764 regprog_T *regprog = NULL; 6765 int rtype = SOME_VALID; 6766 6767 if (*grp == NUL || (pat != NULL && *pat == NUL)) 6768 return -1; 6769 if (id < -1 || id == 0) 6770 { 6771 EMSGN(_("E799: Invalid ID: %ld (must be greater than or equal to 1)"), id); 6772 return -1; 6773 } 6774 if (id != -1) 6775 { 6776 cur = wp->w_match_head; 6777 while (cur != NULL) 6778 { 6779 if (cur->id == id) 6780 { 6781 EMSGN(_("E801: ID already taken: %ld"), id); 6782 return -1; 6783 } 6784 cur = cur->next; 6785 } 6786 } 6787 if ((hlg_id = syn_namen2id(grp, (int)STRLEN(grp))) == 0) 6788 { 6789 EMSG2(_(e_nogroup), grp); 6790 return -1; 6791 } 6792 if (pat != NULL && (regprog = vim_regcomp(pat, RE_MAGIC)) == NULL) 6793 { 6794 EMSG2(_(e_invarg2), pat); 6795 return -1; 6796 } 6797 6798 /* Find available match ID. */ 6799 while (id == -1) 6800 { 6801 cur = wp->w_match_head; 6802 while (cur != NULL && cur->id != wp->w_next_match_id) 6803 cur = cur->next; 6804 if (cur == NULL) 6805 id = wp->w_next_match_id; 6806 wp->w_next_match_id++; 6807 } 6808 6809 /* Build new match. */ 6810 m = (matchitem_T *)alloc_clear(sizeof(matchitem_T)); 6811 m->id = id; 6812 m->priority = prio; 6813 m->pattern = pat == NULL ? NULL : vim_strsave(pat); 6814 m->hlg_id = hlg_id; 6815 m->match.regprog = regprog; 6816 m->match.rmm_ic = FALSE; 6817 m->match.rmm_maxcol = 0; 6818 # if defined(FEAT_CONCEAL) && defined(FEAT_MBYTE) 6819 m->conceal_char = 0; 6820 if (conceal_char != NULL) 6821 m->conceal_char = (*mb_ptr2char)(conceal_char); 6822 # endif 6823 6824 /* Set up position matches */ 6825 if (pos_list != NULL) 6826 { 6827 linenr_T toplnum = 0; 6828 linenr_T botlnum = 0; 6829 listitem_T *li; 6830 int i; 6831 6832 for (i = 0, li = pos_list->lv_first; li != NULL && i < MAXPOSMATCH; 6833 i++, li = li->li_next) 6834 { 6835 linenr_T lnum = 0; 6836 colnr_T col = 0; 6837 int len = 1; 6838 list_T *subl; 6839 listitem_T *subli; 6840 int error = FALSE; 6841 6842 if (li->li_tv.v_type == VAR_LIST) 6843 { 6844 subl = li->li_tv.vval.v_list; 6845 if (subl == NULL) 6846 goto fail; 6847 subli = subl->lv_first; 6848 if (subli == NULL) 6849 goto fail; 6850 lnum = get_tv_number_chk(&subli->li_tv, &error); 6851 if (error == TRUE) 6852 goto fail; 6853 if (lnum == 0) 6854 { 6855 --i; 6856 continue; 6857 } 6858 m->pos.pos[i].lnum = lnum; 6859 subli = subli->li_next; 6860 if (subli != NULL) 6861 { 6862 col = get_tv_number_chk(&subli->li_tv, &error); 6863 if (error == TRUE) 6864 goto fail; 6865 subli = subli->li_next; 6866 if (subli != NULL) 6867 { 6868 len = get_tv_number_chk(&subli->li_tv, &error); 6869 if (error == TRUE) 6870 goto fail; 6871 } 6872 } 6873 m->pos.pos[i].col = col; 6874 m->pos.pos[i].len = len; 6875 } 6876 else if (li->li_tv.v_type == VAR_NUMBER) 6877 { 6878 if (li->li_tv.vval.v_number == 0) 6879 { 6880 --i; 6881 continue; 6882 } 6883 m->pos.pos[i].lnum = li->li_tv.vval.v_number; 6884 m->pos.pos[i].col = 0; 6885 m->pos.pos[i].len = 0; 6886 } 6887 else 6888 { 6889 EMSG(_("List or number required")); 6890 goto fail; 6891 } 6892 if (toplnum == 0 || lnum < toplnum) 6893 toplnum = lnum; 6894 if (botlnum == 0 || lnum >= botlnum) 6895 botlnum = lnum + 1; 6896 } 6897 6898 /* Calculate top and bottom lines for redrawing area */ 6899 if (toplnum != 0) 6900 { 6901 if (wp->w_buffer->b_mod_set) 6902 { 6903 if (wp->w_buffer->b_mod_top > toplnum) 6904 wp->w_buffer->b_mod_top = toplnum; 6905 if (wp->w_buffer->b_mod_bot < botlnum) 6906 wp->w_buffer->b_mod_bot = botlnum; 6907 } 6908 else 6909 { 6910 wp->w_buffer->b_mod_set = TRUE; 6911 wp->w_buffer->b_mod_top = toplnum; 6912 wp->w_buffer->b_mod_bot = botlnum; 6913 wp->w_buffer->b_mod_xlines = 0; 6914 } 6915 m->pos.toplnum = toplnum; 6916 m->pos.botlnum = botlnum; 6917 rtype = VALID; 6918 } 6919 } 6920 6921 /* Insert new match. The match list is in ascending order with regard to 6922 * the match priorities. */ 6923 cur = wp->w_match_head; 6924 prev = cur; 6925 while (cur != NULL && prio >= cur->priority) 6926 { 6927 prev = cur; 6928 cur = cur->next; 6929 } 6930 if (cur == prev) 6931 wp->w_match_head = m; 6932 else 6933 prev->next = m; 6934 m->next = cur; 6935 6936 redraw_later(rtype); 6937 return id; 6938 6939 fail: 6940 vim_free(m); 6941 return -1; 6942 } 6943 6944 /* 6945 * Delete match with ID 'id' in the match list of window 'wp'. 6946 * Print error messages if 'perr' is TRUE. 6947 */ 6948 int 6949 match_delete(win_T *wp, int id, int perr) 6950 { 6951 matchitem_T *cur = wp->w_match_head; 6952 matchitem_T *prev = cur; 6953 int rtype = SOME_VALID; 6954 6955 if (id < 1) 6956 { 6957 if (perr == TRUE) 6958 EMSGN(_("E802: Invalid ID: %ld (must be greater than or equal to 1)"), 6959 id); 6960 return -1; 6961 } 6962 while (cur != NULL && cur->id != id) 6963 { 6964 prev = cur; 6965 cur = cur->next; 6966 } 6967 if (cur == NULL) 6968 { 6969 if (perr == TRUE) 6970 EMSGN(_("E803: ID not found: %ld"), id); 6971 return -1; 6972 } 6973 if (cur == prev) 6974 wp->w_match_head = cur->next; 6975 else 6976 prev->next = cur->next; 6977 vim_regfree(cur->match.regprog); 6978 vim_free(cur->pattern); 6979 if (cur->pos.toplnum != 0) 6980 { 6981 if (wp->w_buffer->b_mod_set) 6982 { 6983 if (wp->w_buffer->b_mod_top > cur->pos.toplnum) 6984 wp->w_buffer->b_mod_top = cur->pos.toplnum; 6985 if (wp->w_buffer->b_mod_bot < cur->pos.botlnum) 6986 wp->w_buffer->b_mod_bot = cur->pos.botlnum; 6987 } 6988 else 6989 { 6990 wp->w_buffer->b_mod_set = TRUE; 6991 wp->w_buffer->b_mod_top = cur->pos.toplnum; 6992 wp->w_buffer->b_mod_bot = cur->pos.botlnum; 6993 wp->w_buffer->b_mod_xlines = 0; 6994 } 6995 rtype = VALID; 6996 } 6997 vim_free(cur); 6998 redraw_later(rtype); 6999 return 0; 7000 } 7001 7002 /* 7003 * Delete all matches in the match list of window 'wp'. 7004 */ 7005 void 7006 clear_matches(win_T *wp) 7007 { 7008 matchitem_T *m; 7009 7010 while (wp->w_match_head != NULL) 7011 { 7012 m = wp->w_match_head->next; 7013 vim_regfree(wp->w_match_head->match.regprog); 7014 vim_free(wp->w_match_head->pattern); 7015 vim_free(wp->w_match_head); 7016 wp->w_match_head = m; 7017 } 7018 redraw_later(SOME_VALID); 7019 } 7020 7021 /* 7022 * Get match from ID 'id' in window 'wp'. 7023 * Return NULL if match not found. 7024 */ 7025 matchitem_T * 7026 get_match(win_T *wp, int id) 7027 { 7028 matchitem_T *cur = wp->w_match_head; 7029 7030 while (cur != NULL && cur->id != id) 7031 cur = cur->next; 7032 return cur; 7033 } 7034 #endif 7035 7036 #if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO) 7037 int 7038 get_win_number(win_T *wp, win_T *first_win) 7039 { 7040 int i = 1; 7041 win_T *w; 7042 7043 for (w = first_win; w != NULL && w != wp; w = W_NEXT(w)) 7044 ++i; 7045 7046 if (w == NULL) 7047 return 0; 7048 else 7049 return i; 7050 } 7051 7052 int 7053 get_tab_number(tabpage_T *tp UNUSED) 7054 { 7055 int i = 1; 7056 # ifdef FEAT_WINDOWS 7057 tabpage_T *t; 7058 7059 for (t = first_tabpage; t != NULL && t != tp; t = t->tp_next) 7060 ++i; 7061 7062 if (t == NULL) 7063 return 0; 7064 else 7065 # endif 7066 return i; 7067 } 7068 #endif 7069 7070 #if defined(FEAT_WINDOWS) || defined(PROTO) 7071 /* 7072 * Return TRUE if "topfrp" and its children are at the right height. 7073 */ 7074 static int 7075 frame_check_height(frame_T *topfrp, int height) 7076 { 7077 frame_T *frp; 7078 7079 if (topfrp->fr_height != height) 7080 return FALSE; 7081 7082 if (topfrp->fr_layout == FR_ROW) 7083 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 7084 if (frp->fr_height != height) 7085 return FALSE; 7086 7087 return TRUE; 7088 } 7089 #endif 7090 7091 #if defined(FEAT_WINDOWS) || defined(PROTO) 7092 /* 7093 * Return TRUE if "topfrp" and its children are at the right width. 7094 */ 7095 static int 7096 frame_check_width(frame_T *topfrp, int width) 7097 { 7098 frame_T *frp; 7099 7100 if (topfrp->fr_width != width) 7101 return FALSE; 7102 7103 if (topfrp->fr_layout == FR_COL) 7104 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 7105 if (frp->fr_width != width) 7106 return FALSE; 7107 7108 return TRUE; 7109 } 7110 #endif 7111 7112 #if defined(FEAT_EVAL) || defined(PROTO) 7113 int 7114 win_getid(typval_T *argvars) 7115 { 7116 int winnr; 7117 win_T *wp; 7118 7119 if (argvars[0].v_type == VAR_UNKNOWN) 7120 return curwin->w_id; 7121 winnr = get_tv_number(&argvars[0]); 7122 if (winnr > 0) 7123 { 7124 if (argvars[1].v_type == VAR_UNKNOWN) 7125 wp = firstwin; 7126 else 7127 { 7128 tabpage_T *tp; 7129 int tabnr = get_tv_number(&argvars[1]); 7130 7131 FOR_ALL_TABPAGES(tp) 7132 if (--tabnr == 0) 7133 break; 7134 if (tp == NULL) 7135 return -1; 7136 wp = tp->tp_firstwin; 7137 } 7138 for ( ; wp != NULL; wp = wp->w_next) 7139 if (--winnr == 0) 7140 return wp->w_id; 7141 } 7142 return 0; 7143 } 7144 7145 int 7146 win_gotoid(typval_T *argvars) 7147 { 7148 win_T *wp; 7149 tabpage_T *tp; 7150 int id = get_tv_number(&argvars[0]); 7151 7152 FOR_ALL_TAB_WINDOWS(tp, wp) 7153 if (wp->w_id == id) 7154 { 7155 goto_tabpage_win(tp, wp); 7156 return 1; 7157 } 7158 return 0; 7159 } 7160 7161 void 7162 win_id2tabwin(typval_T *argvars, list_T *list) 7163 { 7164 win_T *wp; 7165 tabpage_T *tp; 7166 int winnr = 1; 7167 int tabnr = 1; 7168 int id = get_tv_number(&argvars[0]); 7169 7170 FOR_ALL_TABPAGES(tp) 7171 { 7172 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 7173 { 7174 if (wp->w_id == id) 7175 { 7176 list_append_number(list, tabnr); 7177 list_append_number(list, winnr); 7178 return; 7179 } 7180 ++winnr; 7181 } 7182 ++tabnr; 7183 winnr = 1; 7184 } 7185 list_append_number(list, 0); 7186 list_append_number(list, 0); 7187 } 7188 7189 win_T * 7190 win_id2wp(typval_T *argvars) 7191 { 7192 win_T *wp; 7193 tabpage_T *tp; 7194 int id = get_tv_number(&argvars[0]); 7195 7196 FOR_ALL_TAB_WINDOWS(tp, wp) 7197 if (wp->w_id == id) 7198 return wp; 7199 7200 return NULL; 7201 } 7202 7203 int 7204 win_id2win(typval_T *argvars) 7205 { 7206 win_T *wp; 7207 int nr = 1; 7208 int id = get_tv_number(&argvars[0]); 7209 7210 FOR_ALL_WINDOWS(wp) 7211 { 7212 if (wp->w_id == id) 7213 return nr; 7214 ++nr; 7215 } 7216 return 0; 7217 } 7218 7219 void 7220 win_findbuf(typval_T *argvars, list_T *list) 7221 { 7222 win_T *wp; 7223 tabpage_T *tp; 7224 int bufnr = get_tv_number(&argvars[0]); 7225 7226 FOR_ALL_TAB_WINDOWS(tp, wp) 7227 if (wp->w_buffer->b_fnum == bufnr) 7228 list_append_number(list, wp->w_id); 7229 } 7230 7231 #endif 7232