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