1 /* vi:set ts=8 sts=4 sw=4: 2 * 3 * VIM - Vi IMproved by Bram Moolenaar 4 * 5 * Do ":help uganda" in Vim to read a list of people who contributed. 6 * Do ":help credits" in Vim to see a list of people who contributed. 7 * See README.txt for an overview of the Vim source code. 8 */ 9 10 #include "vim.h" 11 12 static int path_is_url __ARGS((char_u *p)); 13 #if defined(FEAT_WINDOWS) || defined(PROTO) 14 static void win_init __ARGS((win_T *newp, win_T *oldp, int flags)); 15 static void win_init_some __ARGS((win_T *newp, win_T *oldp)); 16 static void frame_comp_pos __ARGS((frame_T *topfrp, int *row, int *col)); 17 static void frame_setheight __ARGS((frame_T *curfrp, int height)); 18 #ifdef FEAT_VERTSPLIT 19 static void frame_setwidth __ARGS((frame_T *curfrp, int width)); 20 #endif 21 static void win_exchange __ARGS((long)); 22 static void win_rotate __ARGS((int, int)); 23 static void win_totop __ARGS((int size, int flags)); 24 static void win_equal_rec __ARGS((win_T *next_curwin, int current, frame_T *topfr, int dir, int col, int row, int width, int height)); 25 static int last_window __ARGS((void)); 26 static int close_last_window_tabpage __ARGS((win_T *win, int free_buf, tabpage_T *prev_curtab)); 27 static win_T *win_free_mem __ARGS((win_T *win, int *dirp, tabpage_T *tp)); 28 static frame_T *win_altframe __ARGS((win_T *win, tabpage_T *tp)); 29 static tabpage_T *alt_tabpage __ARGS((void)); 30 static win_T *frame2win __ARGS((frame_T *frp)); 31 static int frame_has_win __ARGS((frame_T *frp, win_T *wp)); 32 static void frame_new_height __ARGS((frame_T *topfrp, int height, int topfirst, int wfh)); 33 static int frame_fixed_height __ARGS((frame_T *frp)); 34 #ifdef FEAT_VERTSPLIT 35 static int frame_fixed_width __ARGS((frame_T *frp)); 36 static void frame_add_statusline __ARGS((frame_T *frp)); 37 static void frame_new_width __ARGS((frame_T *topfrp, int width, int leftfirst, int wfw)); 38 static void frame_add_vsep __ARGS((frame_T *frp)); 39 static int frame_minwidth __ARGS((frame_T *topfrp, win_T *next_curwin)); 40 static void frame_fix_width __ARGS((win_T *wp)); 41 #endif 42 #endif 43 static int win_alloc_firstwin __ARGS((win_T *oldwin)); 44 static void new_frame __ARGS((win_T *wp)); 45 #if defined(FEAT_WINDOWS) || defined(PROTO) 46 static tabpage_T *alloc_tabpage __ARGS((void)); 47 static int leave_tabpage __ARGS((buf_T *new_curbuf)); 48 static void enter_tabpage __ARGS((tabpage_T *tp, buf_T *old_curbuf, int trigger_autocmds)); 49 static void frame_fix_height __ARGS((win_T *wp)); 50 static int frame_minheight __ARGS((frame_T *topfrp, win_T *next_curwin)); 51 static void win_enter_ext __ARGS((win_T *wp, int undo_sync, int no_curwin)); 52 static void win_free __ARGS((win_T *wp, tabpage_T *tp)); 53 static void frame_append __ARGS((frame_T *after, frame_T *frp)); 54 static void frame_insert __ARGS((frame_T *before, frame_T *frp)); 55 static void frame_remove __ARGS((frame_T *frp)); 56 #ifdef FEAT_VERTSPLIT 57 static void win_goto_ver __ARGS((int up, long count)); 58 static void win_goto_hor __ARGS((int left, long count)); 59 #endif 60 static void frame_add_height __ARGS((frame_T *frp, int n)); 61 static void last_status_rec __ARGS((frame_T *fr, int statusline)); 62 63 static void make_snapshot_rec __ARGS((frame_T *fr, frame_T **frp)); 64 static void clear_snapshot __ARGS((tabpage_T *tp, int idx)); 65 static void clear_snapshot_rec __ARGS((frame_T *fr)); 66 static int check_snapshot_rec __ARGS((frame_T *sn, frame_T *fr)); 67 static win_T *restore_snapshot_rec __ARGS((frame_T *sn, frame_T *fr)); 68 69 #endif /* FEAT_WINDOWS */ 70 71 static win_T *win_alloc __ARGS((win_T *after, int hidden)); 72 static void set_fraction __ARGS((win_T *wp)); 73 74 #define URL_SLASH 1 /* path_is_url() has found "://" */ 75 #define URL_BACKSLASH 2 /* path_is_url() has found ":\\" */ 76 77 #define NOWIN (win_T *)-1 /* non-existing window */ 78 79 #ifdef FEAT_WINDOWS 80 # define ROWS_AVAIL (Rows - p_ch - tabline_height()) 81 #else 82 # define ROWS_AVAIL (Rows - p_ch) 83 #endif 84 85 #if defined(FEAT_WINDOWS) || defined(PROTO) 86 87 static char *m_onlyone = N_("Already only one window"); 88 89 /* 90 * all CTRL-W window commands are handled here, called from normal_cmd(). 91 */ 92 void 93 do_window(nchar, Prenum, xchar) 94 int nchar; 95 long Prenum; 96 int xchar; /* extra char from ":wincmd gx" or NUL */ 97 { 98 long Prenum1; 99 win_T *wp; 100 #if defined(FEAT_SEARCHPATH) || defined(FEAT_FIND_ID) 101 char_u *ptr; 102 linenr_T lnum = -1; 103 #endif 104 #ifdef FEAT_FIND_ID 105 int type = FIND_DEFINE; 106 int len; 107 #endif 108 char_u cbuf[40]; 109 110 if (Prenum == 0) 111 Prenum1 = 1; 112 else 113 Prenum1 = Prenum; 114 115 #ifdef FEAT_CMDWIN 116 # define CHECK_CMDWIN if (cmdwin_type != 0) { EMSG(_(e_cmdwin)); break; } 117 #else 118 # define CHECK_CMDWIN 119 #endif 120 121 switch (nchar) 122 { 123 /* split current window in two parts, horizontally */ 124 case 'S': 125 case Ctrl_S: 126 case 's': 127 CHECK_CMDWIN 128 #ifdef FEAT_VISUAL 129 reset_VIsual_and_resel(); /* stop Visual mode */ 130 #endif 131 #ifdef FEAT_QUICKFIX 132 /* When splitting the quickfix window open a new buffer in it, 133 * don't replicate the quickfix buffer. */ 134 if (bt_quickfix(curbuf)) 135 goto newwindow; 136 #endif 137 #ifdef FEAT_GUI 138 need_mouse_correct = TRUE; 139 #endif 140 win_split((int)Prenum, 0); 141 break; 142 143 #ifdef FEAT_VERTSPLIT 144 /* split current window in two parts, vertically */ 145 case Ctrl_V: 146 case 'v': 147 CHECK_CMDWIN 148 # ifdef FEAT_VISUAL 149 reset_VIsual_and_resel(); /* stop Visual mode */ 150 # endif 151 # ifdef FEAT_QUICKFIX 152 /* When splitting the quickfix window open a new buffer in it, 153 * don't replicate the quickfix buffer. */ 154 if (bt_quickfix(curbuf)) 155 goto newwindow; 156 # endif 157 # ifdef FEAT_GUI 158 need_mouse_correct = TRUE; 159 # endif 160 win_split((int)Prenum, WSP_VERT); 161 break; 162 #endif 163 164 /* split current window and edit alternate file */ 165 case Ctrl_HAT: 166 case '^': 167 CHECK_CMDWIN 168 #ifdef FEAT_VISUAL 169 reset_VIsual_and_resel(); /* stop Visual mode */ 170 #endif 171 STRCPY(cbuf, "split #"); 172 if (Prenum) 173 vim_snprintf((char *)cbuf + 7, sizeof(cbuf) - 7, 174 "%ld", Prenum); 175 do_cmdline_cmd(cbuf); 176 break; 177 178 /* open new window */ 179 case Ctrl_N: 180 case 'n': 181 CHECK_CMDWIN 182 #ifdef FEAT_VISUAL 183 reset_VIsual_and_resel(); /* stop Visual mode */ 184 #endif 185 #ifdef FEAT_QUICKFIX 186 newwindow: 187 #endif 188 if (Prenum) 189 /* window height */ 190 vim_snprintf((char *)cbuf, sizeof(cbuf) - 5, "%ld", Prenum); 191 else 192 cbuf[0] = NUL; 193 #if defined(FEAT_VERTSPLIT) && defined(FEAT_QUICKFIX) 194 if (nchar == 'v' || nchar == Ctrl_V) 195 STRCAT(cbuf, "v"); 196 #endif 197 STRCAT(cbuf, "new"); 198 do_cmdline_cmd(cbuf); 199 break; 200 201 /* quit current window */ 202 case Ctrl_Q: 203 case 'q': 204 #ifdef FEAT_VISUAL 205 reset_VIsual_and_resel(); /* stop Visual mode */ 206 #endif 207 do_cmdline_cmd((char_u *)"quit"); 208 break; 209 210 /* close current window */ 211 case Ctrl_C: 212 case 'c': 213 #ifdef FEAT_VISUAL 214 reset_VIsual_and_resel(); /* stop Visual mode */ 215 #endif 216 do_cmdline_cmd((char_u *)"close"); 217 break; 218 219 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX) 220 /* close preview window */ 221 case Ctrl_Z: 222 case 'z': 223 CHECK_CMDWIN 224 #ifdef FEAT_VISUAL 225 reset_VIsual_and_resel(); /* stop Visual mode */ 226 #endif 227 do_cmdline_cmd((char_u *)"pclose"); 228 break; 229 230 /* cursor to preview window */ 231 case 'P': 232 for (wp = firstwin; wp != NULL; wp = wp->w_next) 233 if (wp->w_p_pvw) 234 break; 235 if (wp == NULL) 236 EMSG(_("E441: There is no preview window")); 237 else 238 win_goto(wp); 239 break; 240 #endif 241 242 /* close all but current window */ 243 case Ctrl_O: 244 case 'o': 245 CHECK_CMDWIN 246 #ifdef FEAT_VISUAL 247 reset_VIsual_and_resel(); /* stop Visual mode */ 248 #endif 249 do_cmdline_cmd((char_u *)"only"); 250 break; 251 252 /* cursor to next window with wrap around */ 253 case Ctrl_W: 254 case 'w': 255 /* cursor to previous window with wrap around */ 256 case 'W': 257 CHECK_CMDWIN 258 if (firstwin == lastwin && Prenum != 1) /* just one window */ 259 beep_flush(); 260 else 261 { 262 if (Prenum) /* go to specified window */ 263 { 264 for (wp = firstwin; --Prenum > 0; ) 265 { 266 if (wp->w_next == NULL) 267 break; 268 else 269 wp = wp->w_next; 270 } 271 } 272 else 273 { 274 if (nchar == 'W') /* go to previous window */ 275 { 276 wp = curwin->w_prev; 277 if (wp == NULL) 278 wp = lastwin; /* wrap around */ 279 } 280 else /* go to next window */ 281 { 282 wp = curwin->w_next; 283 if (wp == NULL) 284 wp = firstwin; /* wrap around */ 285 } 286 } 287 win_goto(wp); 288 } 289 break; 290 291 /* cursor to window below */ 292 case 'j': 293 case K_DOWN: 294 case Ctrl_J: 295 CHECK_CMDWIN 296 #ifdef FEAT_VERTSPLIT 297 win_goto_ver(FALSE, Prenum1); 298 #else 299 for (wp = curwin; wp->w_next != NULL && Prenum1-- > 0; 300 wp = wp->w_next) 301 ; 302 win_goto(wp); 303 #endif 304 break; 305 306 /* cursor to window above */ 307 case 'k': 308 case K_UP: 309 case Ctrl_K: 310 CHECK_CMDWIN 311 #ifdef FEAT_VERTSPLIT 312 win_goto_ver(TRUE, Prenum1); 313 #else 314 for (wp = curwin; wp->w_prev != NULL && Prenum1-- > 0; 315 wp = wp->w_prev) 316 ; 317 win_goto(wp); 318 #endif 319 break; 320 321 #ifdef FEAT_VERTSPLIT 322 /* cursor to left window */ 323 case 'h': 324 case K_LEFT: 325 case Ctrl_H: 326 case K_BS: 327 CHECK_CMDWIN 328 win_goto_hor(TRUE, Prenum1); 329 break; 330 331 /* cursor to right window */ 332 case 'l': 333 case K_RIGHT: 334 case Ctrl_L: 335 CHECK_CMDWIN 336 win_goto_hor(FALSE, Prenum1); 337 break; 338 #endif 339 340 /* move window to new tab page */ 341 case 'T': 342 if (one_window()) 343 MSG(_(m_onlyone)); 344 else 345 { 346 tabpage_T *oldtab = curtab; 347 tabpage_T *newtab; 348 349 /* First create a new tab with the window, then go back to 350 * the old tab and close the window there. */ 351 wp = curwin; 352 if (win_new_tabpage((int)Prenum) == OK 353 && valid_tabpage(oldtab)) 354 { 355 newtab = curtab; 356 goto_tabpage_tp(oldtab, TRUE); 357 if (curwin == wp) 358 win_close(curwin, FALSE); 359 if (valid_tabpage(newtab)) 360 goto_tabpage_tp(newtab, TRUE); 361 } 362 } 363 break; 364 365 /* cursor to top-left window */ 366 case 't': 367 case Ctrl_T: 368 win_goto(firstwin); 369 break; 370 371 /* cursor to bottom-right window */ 372 case 'b': 373 case Ctrl_B: 374 win_goto(lastwin); 375 break; 376 377 /* cursor to last accessed (previous) window */ 378 case 'p': 379 case Ctrl_P: 380 if (prevwin == NULL) 381 beep_flush(); 382 else 383 win_goto(prevwin); 384 break; 385 386 /* exchange current and next window */ 387 case 'x': 388 case Ctrl_X: 389 CHECK_CMDWIN 390 win_exchange(Prenum); 391 break; 392 393 /* rotate windows downwards */ 394 case Ctrl_R: 395 case 'r': 396 CHECK_CMDWIN 397 #ifdef FEAT_VISUAL 398 reset_VIsual_and_resel(); /* stop Visual mode */ 399 #endif 400 win_rotate(FALSE, (int)Prenum1); /* downwards */ 401 break; 402 403 /* rotate windows upwards */ 404 case 'R': 405 CHECK_CMDWIN 406 #ifdef FEAT_VISUAL 407 reset_VIsual_and_resel(); /* stop Visual mode */ 408 #endif 409 win_rotate(TRUE, (int)Prenum1); /* upwards */ 410 break; 411 412 /* move window to the very top/bottom/left/right */ 413 case 'K': 414 case 'J': 415 #ifdef FEAT_VERTSPLIT 416 case 'H': 417 case 'L': 418 #endif 419 CHECK_CMDWIN 420 win_totop((int)Prenum, 421 ((nchar == 'H' || nchar == 'L') ? WSP_VERT : 0) 422 | ((nchar == 'H' || nchar == 'K') ? WSP_TOP : WSP_BOT)); 423 break; 424 425 /* make all windows the same height */ 426 case '=': 427 #ifdef FEAT_GUI 428 need_mouse_correct = TRUE; 429 #endif 430 win_equal(NULL, FALSE, 'b'); 431 break; 432 433 /* increase current window height */ 434 case '+': 435 #ifdef FEAT_GUI 436 need_mouse_correct = TRUE; 437 #endif 438 win_setheight(curwin->w_height + (int)Prenum1); 439 break; 440 441 /* decrease current window height */ 442 case '-': 443 #ifdef FEAT_GUI 444 need_mouse_correct = TRUE; 445 #endif 446 win_setheight(curwin->w_height - (int)Prenum1); 447 break; 448 449 /* set current window height */ 450 case Ctrl__: 451 case '_': 452 #ifdef FEAT_GUI 453 need_mouse_correct = TRUE; 454 #endif 455 win_setheight(Prenum ? (int)Prenum : 9999); 456 break; 457 458 #ifdef FEAT_VERTSPLIT 459 /* increase current window width */ 460 case '>': 461 #ifdef FEAT_GUI 462 need_mouse_correct = TRUE; 463 #endif 464 win_setwidth(curwin->w_width + (int)Prenum1); 465 break; 466 467 /* decrease current window width */ 468 case '<': 469 #ifdef FEAT_GUI 470 need_mouse_correct = TRUE; 471 #endif 472 win_setwidth(curwin->w_width - (int)Prenum1); 473 break; 474 475 /* set current window width */ 476 case '|': 477 #ifdef FEAT_GUI 478 need_mouse_correct = TRUE; 479 #endif 480 win_setwidth(Prenum != 0 ? (int)Prenum : 9999); 481 break; 482 #endif 483 484 /* jump to tag and split window if tag exists (in preview window) */ 485 #if defined(FEAT_QUICKFIX) 486 case '}': 487 CHECK_CMDWIN 488 if (Prenum) 489 g_do_tagpreview = Prenum; 490 else 491 g_do_tagpreview = p_pvh; 492 /*FALLTHROUGH*/ 493 #endif 494 case ']': 495 case Ctrl_RSB: 496 CHECK_CMDWIN 497 #ifdef FEAT_VISUAL 498 reset_VIsual_and_resel(); /* stop Visual mode */ 499 #endif 500 if (Prenum) 501 postponed_split = Prenum; 502 else 503 postponed_split = -1; 504 505 /* Execute the command right here, required when 506 * "wincmd ]" was used in a function. */ 507 do_nv_ident(Ctrl_RSB, NUL); 508 break; 509 510 #ifdef FEAT_SEARCHPATH 511 /* edit file name under cursor in a new window */ 512 case 'f': 513 case 'F': 514 case Ctrl_F: 515 wingotofile: 516 CHECK_CMDWIN 517 518 ptr = grab_file_name(Prenum1, &lnum); 519 if (ptr != NULL) 520 { 521 # ifdef FEAT_GUI 522 need_mouse_correct = TRUE; 523 # endif 524 setpcmark(); 525 if (win_split(0, 0) == OK) 526 { 527 RESET_BINDING(curwin); 528 (void)do_ecmd(0, ptr, NULL, NULL, ECMD_LASTL, 529 ECMD_HIDE, NULL); 530 if (nchar == 'F' && lnum >= 0) 531 { 532 curwin->w_cursor.lnum = lnum; 533 check_cursor_lnum(); 534 beginline(BL_SOL | BL_FIX); 535 } 536 } 537 vim_free(ptr); 538 } 539 break; 540 #endif 541 542 #ifdef FEAT_FIND_ID 543 /* Go to the first occurrence of the identifier under cursor along path in a 544 * new window -- webb 545 */ 546 case 'i': /* Go to any match */ 547 case Ctrl_I: 548 type = FIND_ANY; 549 /* FALLTHROUGH */ 550 case 'd': /* Go to definition, using 'define' */ 551 case Ctrl_D: 552 CHECK_CMDWIN 553 if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0) 554 break; 555 find_pattern_in_path(ptr, 0, len, TRUE, 556 Prenum == 0 ? TRUE : FALSE, type, 557 Prenum1, ACTION_SPLIT, (linenr_T)1, (linenr_T)MAXLNUM); 558 curwin->w_set_curswant = TRUE; 559 break; 560 #endif 561 562 case K_KENTER: 563 case CAR: 564 #if defined(FEAT_QUICKFIX) 565 /* 566 * In a quickfix window a <CR> jumps to the error under the 567 * cursor in a new window. 568 */ 569 if (bt_quickfix(curbuf)) 570 { 571 sprintf((char *)cbuf, "split +%ld%s", 572 (long)curwin->w_cursor.lnum, 573 (curwin->w_llist_ref == NULL) ? "cc" : "ll"); 574 do_cmdline_cmd(cbuf); 575 } 576 #endif 577 break; 578 579 580 /* CTRL-W g extended commands */ 581 case 'g': 582 case Ctrl_G: 583 CHECK_CMDWIN 584 #ifdef USE_ON_FLY_SCROLL 585 dont_scroll = TRUE; /* disallow scrolling here */ 586 #endif 587 ++no_mapping; 588 ++allow_keys; /* no mapping for xchar, but allow key codes */ 589 if (xchar == NUL) 590 xchar = plain_vgetc(); 591 LANGMAP_ADJUST(xchar, TRUE); 592 --no_mapping; 593 --allow_keys; 594 #ifdef FEAT_CMDL_INFO 595 (void)add_to_showcmd(xchar); 596 #endif 597 switch (xchar) 598 { 599 #if defined(FEAT_QUICKFIX) 600 case '}': 601 xchar = Ctrl_RSB; 602 if (Prenum) 603 g_do_tagpreview = Prenum; 604 else 605 g_do_tagpreview = p_pvh; 606 /*FALLTHROUGH*/ 607 #endif 608 case ']': 609 case Ctrl_RSB: 610 #ifdef FEAT_VISUAL 611 reset_VIsual_and_resel(); /* stop Visual mode */ 612 #endif 613 if (Prenum) 614 postponed_split = Prenum; 615 else 616 postponed_split = -1; 617 618 /* Execute the command right here, required when 619 * "wincmd g}" was used in a function. */ 620 do_nv_ident('g', xchar); 621 break; 622 623 #ifdef FEAT_SEARCHPATH 624 case 'f': /* CTRL-W gf: "gf" in a new tab page */ 625 case 'F': /* CTRL-W gF: "gF" in a new tab page */ 626 cmdmod.tab = tabpage_index(curtab) + 1; 627 nchar = xchar; 628 goto wingotofile; 629 #endif 630 default: 631 beep_flush(); 632 break; 633 } 634 break; 635 636 default: beep_flush(); 637 break; 638 } 639 } 640 641 /* 642 * split the current window, implements CTRL-W s and :split 643 * 644 * "size" is the height or width for the new window, 0 to use half of current 645 * height or width. 646 * 647 * "flags": 648 * WSP_ROOM: require enough room for new window 649 * WSP_VERT: vertical split. 650 * WSP_TOP: open window at the top-left of the shell (help window). 651 * WSP_BOT: open window at the bottom-right of the shell (quickfix window). 652 * WSP_HELP: creating the help window, keep layout snapshot 653 * 654 * return FAIL for failure, OK otherwise 655 */ 656 int 657 win_split(size, flags) 658 int size; 659 int flags; 660 { 661 /* When the ":tab" modifier was used open a new tab page instead. */ 662 if (may_open_tabpage() == OK) 663 return OK; 664 665 /* Add flags from ":vertical", ":topleft" and ":botright". */ 666 flags |= cmdmod.split; 667 if ((flags & WSP_TOP) && (flags & WSP_BOT)) 668 { 669 EMSG(_("E442: Can't split topleft and botright at the same time")); 670 return FAIL; 671 } 672 673 /* When creating the help window make a snapshot of the window layout. 674 * Otherwise clear the snapshot, it's now invalid. */ 675 if (flags & WSP_HELP) 676 make_snapshot(SNAP_HELP_IDX); 677 else 678 clear_snapshot(curtab, SNAP_HELP_IDX); 679 680 return win_split_ins(size, flags, NULL, 0); 681 } 682 683 /* 684 * When "new_wp" is NULL: split the current window in two. 685 * When "new_wp" is not NULL: insert this window at the far 686 * top/left/right/bottom. 687 * return FAIL for failure, OK otherwise 688 */ 689 int 690 win_split_ins(size, flags, new_wp, dir) 691 int size; 692 int flags; 693 win_T *new_wp; 694 int dir; 695 { 696 win_T *wp = new_wp; 697 win_T *oldwin; 698 int new_size = size; 699 int i; 700 int need_status = 0; 701 int do_equal = FALSE; 702 int needed; 703 int available; 704 int oldwin_height = 0; 705 int layout; 706 frame_T *frp, *curfrp; 707 int before; 708 709 if (flags & WSP_TOP) 710 oldwin = firstwin; 711 else if (flags & WSP_BOT) 712 oldwin = lastwin; 713 else 714 oldwin = curwin; 715 716 /* add a status line when p_ls == 1 and splitting the first window */ 717 if (lastwin == firstwin && p_ls == 1 && oldwin->w_status_height == 0) 718 { 719 if (oldwin->w_height <= p_wmh && new_wp == NULL) 720 { 721 EMSG(_(e_noroom)); 722 return FAIL; 723 } 724 need_status = STATUS_HEIGHT; 725 } 726 727 #ifdef FEAT_GUI 728 /* May be needed for the scrollbars that are going to change. */ 729 if (gui.in_use) 730 out_flush(); 731 #endif 732 733 #ifdef FEAT_VERTSPLIT 734 if (flags & WSP_VERT) 735 { 736 layout = FR_ROW; 737 738 /* 739 * Check if we are able to split the current window and compute its 740 * width. 741 */ 742 needed = p_wmw + 1; 743 if (flags & WSP_ROOM) 744 needed += p_wiw - p_wmw; 745 if (p_ea || (flags & (WSP_BOT | WSP_TOP))) 746 { 747 available = topframe->fr_width; 748 needed += frame_minwidth(topframe, NULL); 749 } 750 else 751 available = oldwin->w_width; 752 if (available < needed && new_wp == NULL) 753 { 754 EMSG(_(e_noroom)); 755 return FAIL; 756 } 757 if (new_size == 0) 758 new_size = oldwin->w_width / 2; 759 if (new_size > oldwin->w_width - p_wmw - 1) 760 new_size = oldwin->w_width - p_wmw - 1; 761 if (new_size < p_wmw) 762 new_size = p_wmw; 763 764 /* if it doesn't fit in the current window, need win_equal() */ 765 if (oldwin->w_width - new_size - 1 < p_wmw) 766 do_equal = TRUE; 767 768 /* We don't like to take lines for the new window from a 769 * 'winfixwidth' window. Take them from a window to the left or right 770 * instead, if possible. */ 771 if (oldwin->w_p_wfw) 772 win_setwidth_win(oldwin->w_width + new_size, oldwin); 773 774 /* Only make all windows the same width if one of them (except oldwin) 775 * is wider than one of the split windows. */ 776 if (!do_equal && p_ea && size == 0 && *p_ead != 'v' 777 && oldwin->w_frame->fr_parent != NULL) 778 { 779 frp = oldwin->w_frame->fr_parent->fr_child; 780 while (frp != NULL) 781 { 782 if (frp->fr_win != oldwin && frp->fr_win != NULL 783 && (frp->fr_win->w_width > new_size 784 || frp->fr_win->w_width > oldwin->w_width 785 - new_size - STATUS_HEIGHT)) 786 { 787 do_equal = TRUE; 788 break; 789 } 790 frp = frp->fr_next; 791 } 792 } 793 } 794 else 795 #endif 796 { 797 layout = FR_COL; 798 799 /* 800 * Check if we are able to split the current window and compute its 801 * height. 802 */ 803 needed = p_wmh + STATUS_HEIGHT + need_status; 804 if (flags & WSP_ROOM) 805 needed += p_wh - p_wmh; 806 if (p_ea || (flags & (WSP_BOT | WSP_TOP))) 807 { 808 available = topframe->fr_height; 809 needed += frame_minheight(topframe, NULL); 810 } 811 else 812 { 813 available = oldwin->w_height; 814 needed += p_wmh; 815 } 816 if (available < needed && new_wp == NULL) 817 { 818 EMSG(_(e_noroom)); 819 return FAIL; 820 } 821 oldwin_height = oldwin->w_height; 822 if (need_status) 823 { 824 oldwin->w_status_height = STATUS_HEIGHT; 825 oldwin_height -= STATUS_HEIGHT; 826 } 827 if (new_size == 0) 828 new_size = oldwin_height / 2; 829 830 if (new_size > oldwin_height - p_wmh - STATUS_HEIGHT) 831 new_size = oldwin_height - p_wmh - STATUS_HEIGHT; 832 if (new_size < p_wmh) 833 new_size = p_wmh; 834 835 /* if it doesn't fit in the current window, need win_equal() */ 836 if (oldwin_height - new_size - STATUS_HEIGHT < p_wmh) 837 do_equal = TRUE; 838 839 /* We don't like to take lines for the new window from a 840 * 'winfixheight' window. Take them from a window above or below 841 * instead, if possible. */ 842 if (oldwin->w_p_wfh) 843 { 844 win_setheight_win(oldwin->w_height + new_size + STATUS_HEIGHT, 845 oldwin); 846 oldwin_height = oldwin->w_height; 847 if (need_status) 848 oldwin_height -= STATUS_HEIGHT; 849 } 850 851 /* Only make all windows the same height if one of them (except oldwin) 852 * is higher than one of the split windows. */ 853 if (!do_equal && p_ea && size == 0 854 #ifdef FEAT_VERTSPLIT 855 && *p_ead != 'h' 856 #endif 857 && oldwin->w_frame->fr_parent != NULL) 858 { 859 frp = oldwin->w_frame->fr_parent->fr_child; 860 while (frp != NULL) 861 { 862 if (frp->fr_win != oldwin && frp->fr_win != NULL 863 && (frp->fr_win->w_height > new_size 864 || frp->fr_win->w_height > oldwin_height - new_size 865 - STATUS_HEIGHT)) 866 { 867 do_equal = TRUE; 868 break; 869 } 870 frp = frp->fr_next; 871 } 872 } 873 } 874 875 /* 876 * allocate new window structure and link it in the window list 877 */ 878 if ((flags & WSP_TOP) == 0 879 && ((flags & WSP_BOT) 880 || (flags & WSP_BELOW) 881 || (!(flags & WSP_ABOVE) 882 && ( 883 #ifdef FEAT_VERTSPLIT 884 (flags & WSP_VERT) ? p_spr : 885 #endif 886 p_sb)))) 887 { 888 /* new window below/right of current one */ 889 if (new_wp == NULL) 890 wp = win_alloc(oldwin, FALSE); 891 else 892 win_append(oldwin, wp); 893 } 894 else 895 { 896 if (new_wp == NULL) 897 wp = win_alloc(oldwin->w_prev, FALSE); 898 else 899 win_append(oldwin->w_prev, wp); 900 } 901 902 if (new_wp == NULL) 903 { 904 if (wp == NULL) 905 return FAIL; 906 907 new_frame(wp); 908 if (wp->w_frame == NULL) 909 { 910 win_free(wp, NULL); 911 return FAIL; 912 } 913 914 /* make the contents of the new window the same as the current one */ 915 win_init(wp, curwin, flags); 916 } 917 918 /* 919 * Reorganise the tree of frames to insert the new window. 920 */ 921 if (flags & (WSP_TOP | WSP_BOT)) 922 { 923 #ifdef FEAT_VERTSPLIT 924 if ((topframe->fr_layout == FR_COL && (flags & WSP_VERT) == 0) 925 || (topframe->fr_layout == FR_ROW && (flags & WSP_VERT) != 0)) 926 #else 927 if (topframe->fr_layout == FR_COL) 928 #endif 929 { 930 curfrp = topframe->fr_child; 931 if (flags & WSP_BOT) 932 while (curfrp->fr_next != NULL) 933 curfrp = curfrp->fr_next; 934 } 935 else 936 curfrp = topframe; 937 before = (flags & WSP_TOP); 938 } 939 else 940 { 941 curfrp = oldwin->w_frame; 942 if (flags & WSP_BELOW) 943 before = FALSE; 944 else if (flags & WSP_ABOVE) 945 before = TRUE; 946 else 947 #ifdef FEAT_VERTSPLIT 948 if (flags & WSP_VERT) 949 before = !p_spr; 950 else 951 #endif 952 before = !p_sb; 953 } 954 if (curfrp->fr_parent == NULL || curfrp->fr_parent->fr_layout != layout) 955 { 956 /* Need to create a new frame in the tree to make a branch. */ 957 frp = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); 958 *frp = *curfrp; 959 curfrp->fr_layout = layout; 960 frp->fr_parent = curfrp; 961 frp->fr_next = NULL; 962 frp->fr_prev = NULL; 963 curfrp->fr_child = frp; 964 curfrp->fr_win = NULL; 965 curfrp = frp; 966 if (frp->fr_win != NULL) 967 oldwin->w_frame = frp; 968 else 969 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 970 frp->fr_parent = curfrp; 971 } 972 973 if (new_wp == NULL) 974 frp = wp->w_frame; 975 else 976 frp = new_wp->w_frame; 977 frp->fr_parent = curfrp->fr_parent; 978 979 /* Insert the new frame at the right place in the frame list. */ 980 if (before) 981 frame_insert(curfrp, frp); 982 else 983 frame_append(curfrp, frp); 984 985 /* Set w_fraction now so that the cursor keeps the same relative 986 * vertical position. */ 987 if (oldwin->w_height > 0) 988 set_fraction(oldwin); 989 wp->w_fraction = oldwin->w_fraction; 990 991 #ifdef FEAT_VERTSPLIT 992 if (flags & WSP_VERT) 993 { 994 wp->w_p_scr = curwin->w_p_scr; 995 996 if (need_status) 997 { 998 win_new_height(oldwin, oldwin->w_height - 1); 999 oldwin->w_status_height = need_status; 1000 } 1001 if (flags & (WSP_TOP | WSP_BOT)) 1002 { 1003 /* set height and row of new window to full height */ 1004 wp->w_winrow = tabline_height(); 1005 win_new_height(wp, curfrp->fr_height - (p_ls > 0)); 1006 wp->w_status_height = (p_ls > 0); 1007 } 1008 else 1009 { 1010 /* height and row of new window is same as current window */ 1011 wp->w_winrow = oldwin->w_winrow; 1012 win_new_height(wp, oldwin->w_height); 1013 wp->w_status_height = oldwin->w_status_height; 1014 } 1015 frp->fr_height = curfrp->fr_height; 1016 1017 /* "new_size" of the current window goes to the new window, use 1018 * one column for the vertical separator */ 1019 win_new_width(wp, new_size); 1020 if (before) 1021 wp->w_vsep_width = 1; 1022 else 1023 { 1024 wp->w_vsep_width = oldwin->w_vsep_width; 1025 oldwin->w_vsep_width = 1; 1026 } 1027 if (flags & (WSP_TOP | WSP_BOT)) 1028 { 1029 if (flags & WSP_BOT) 1030 frame_add_vsep(curfrp); 1031 /* Set width of neighbor frame */ 1032 frame_new_width(curfrp, curfrp->fr_width 1033 - (new_size + ((flags & WSP_TOP) != 0)), flags & WSP_TOP, 1034 FALSE); 1035 } 1036 else 1037 win_new_width(oldwin, oldwin->w_width - (new_size + 1)); 1038 if (before) /* new window left of current one */ 1039 { 1040 wp->w_wincol = oldwin->w_wincol; 1041 oldwin->w_wincol += new_size + 1; 1042 } 1043 else /* new window right of current one */ 1044 wp->w_wincol = oldwin->w_wincol + oldwin->w_width + 1; 1045 frame_fix_width(oldwin); 1046 frame_fix_width(wp); 1047 } 1048 else 1049 #endif 1050 { 1051 /* width and column of new window is same as current window */ 1052 #ifdef FEAT_VERTSPLIT 1053 if (flags & (WSP_TOP | WSP_BOT)) 1054 { 1055 wp->w_wincol = 0; 1056 win_new_width(wp, Columns); 1057 wp->w_vsep_width = 0; 1058 } 1059 else 1060 { 1061 wp->w_wincol = oldwin->w_wincol; 1062 win_new_width(wp, oldwin->w_width); 1063 wp->w_vsep_width = oldwin->w_vsep_width; 1064 } 1065 frp->fr_width = curfrp->fr_width; 1066 #endif 1067 1068 /* "new_size" of the current window goes to the new window, use 1069 * one row for the status line */ 1070 win_new_height(wp, new_size); 1071 if (flags & (WSP_TOP | WSP_BOT)) 1072 frame_new_height(curfrp, curfrp->fr_height 1073 - (new_size + STATUS_HEIGHT), flags & WSP_TOP, FALSE); 1074 else 1075 win_new_height(oldwin, oldwin_height - (new_size + STATUS_HEIGHT)); 1076 if (before) /* new window above current one */ 1077 { 1078 wp->w_winrow = oldwin->w_winrow; 1079 wp->w_status_height = STATUS_HEIGHT; 1080 oldwin->w_winrow += wp->w_height + STATUS_HEIGHT; 1081 } 1082 else /* new window below current one */ 1083 { 1084 wp->w_winrow = oldwin->w_winrow + oldwin->w_height + STATUS_HEIGHT; 1085 wp->w_status_height = oldwin->w_status_height; 1086 oldwin->w_status_height = STATUS_HEIGHT; 1087 } 1088 #ifdef FEAT_VERTSPLIT 1089 if (flags & WSP_BOT) 1090 frame_add_statusline(curfrp); 1091 #endif 1092 frame_fix_height(wp); 1093 frame_fix_height(oldwin); 1094 } 1095 1096 if (flags & (WSP_TOP | WSP_BOT)) 1097 (void)win_comp_pos(); 1098 1099 /* 1100 * Both windows need redrawing 1101 */ 1102 redraw_win_later(wp, NOT_VALID); 1103 wp->w_redr_status = TRUE; 1104 redraw_win_later(oldwin, NOT_VALID); 1105 oldwin->w_redr_status = TRUE; 1106 1107 if (need_status) 1108 { 1109 msg_row = Rows - 1; 1110 msg_col = sc_col; 1111 msg_clr_eos_force(); /* Old command/ruler may still be there */ 1112 comp_col(); 1113 msg_row = Rows - 1; 1114 msg_col = 0; /* put position back at start of line */ 1115 } 1116 1117 /* 1118 * equalize the window sizes. 1119 */ 1120 if (do_equal || dir != 0) 1121 win_equal(wp, TRUE, 1122 #ifdef FEAT_VERTSPLIT 1123 (flags & WSP_VERT) ? (dir == 'v' ? 'b' : 'h') 1124 : dir == 'h' ? 'b' : 1125 #endif 1126 'v'); 1127 1128 /* Don't change the window height/width to 'winheight' / 'winwidth' if a 1129 * size was given. */ 1130 #ifdef FEAT_VERTSPLIT 1131 if (flags & WSP_VERT) 1132 { 1133 i = p_wiw; 1134 if (size != 0) 1135 p_wiw = size; 1136 1137 # ifdef FEAT_GUI 1138 /* When 'guioptions' includes 'L' or 'R' may have to add scrollbars. */ 1139 if (gui.in_use) 1140 gui_init_which_components(NULL); 1141 # endif 1142 } 1143 else 1144 #endif 1145 { 1146 i = p_wh; 1147 if (size != 0) 1148 p_wh = size; 1149 } 1150 1151 /* 1152 * make the new window the current window 1153 */ 1154 win_enter(wp, FALSE); 1155 #ifdef FEAT_VERTSPLIT 1156 if (flags & WSP_VERT) 1157 p_wiw = i; 1158 else 1159 #endif 1160 p_wh = i; 1161 1162 return OK; 1163 } 1164 1165 1166 /* 1167 * Initialize window "newp" from window "oldp". 1168 * Used when splitting a window and when creating a new tab page. 1169 * The windows will both edit the same buffer. 1170 * WSP_NEWLOC may be specified in flags to prevent the location list from 1171 * being copied. 1172 */ 1173 static void 1174 win_init(newp, oldp, flags) 1175 win_T *newp; 1176 win_T *oldp; 1177 int flags UNUSED; 1178 { 1179 int i; 1180 1181 newp->w_buffer = oldp->w_buffer; 1182 #ifdef FEAT_SYN_HL 1183 newp->w_s = &(oldp->w_buffer->b_s); 1184 #endif 1185 oldp->w_buffer->b_nwindows++; 1186 newp->w_cursor = oldp->w_cursor; 1187 newp->w_valid = 0; 1188 newp->w_curswant = oldp->w_curswant; 1189 newp->w_set_curswant = oldp->w_set_curswant; 1190 newp->w_topline = oldp->w_topline; 1191 #ifdef FEAT_DIFF 1192 newp->w_topfill = oldp->w_topfill; 1193 #endif 1194 newp->w_leftcol = oldp->w_leftcol; 1195 newp->w_pcmark = oldp->w_pcmark; 1196 newp->w_prev_pcmark = oldp->w_prev_pcmark; 1197 newp->w_alt_fnum = oldp->w_alt_fnum; 1198 newp->w_wrow = oldp->w_wrow; 1199 newp->w_fraction = oldp->w_fraction; 1200 newp->w_prev_fraction_row = oldp->w_prev_fraction_row; 1201 #ifdef FEAT_JUMPLIST 1202 copy_jumplist(oldp, newp); 1203 #endif 1204 #ifdef FEAT_QUICKFIX 1205 if (flags & WSP_NEWLOC) 1206 { 1207 /* Don't copy the location list. */ 1208 newp->w_llist = NULL; 1209 newp->w_llist_ref = NULL; 1210 } 1211 else 1212 copy_loclist(oldp, newp); 1213 #endif 1214 if (oldp->w_localdir != NULL) 1215 newp->w_localdir = vim_strsave(oldp->w_localdir); 1216 1217 /* copy tagstack and folds */ 1218 for (i = 0; i < oldp->w_tagstacklen; i++) 1219 { 1220 newp->w_tagstack[i] = oldp->w_tagstack[i]; 1221 if (newp->w_tagstack[i].tagname != NULL) 1222 newp->w_tagstack[i].tagname = 1223 vim_strsave(newp->w_tagstack[i].tagname); 1224 } 1225 newp->w_tagstackidx = oldp->w_tagstackidx; 1226 newp->w_tagstacklen = oldp->w_tagstacklen; 1227 #ifdef FEAT_FOLDING 1228 copyFoldingState(oldp, newp); 1229 #endif 1230 1231 win_init_some(newp, oldp); 1232 1233 #ifdef FEAT_SYN_HL 1234 check_colorcolumn(newp); 1235 #endif 1236 } 1237 1238 /* 1239 * Initialize window "newp" from window"old". 1240 * Only the essential things are copied. 1241 */ 1242 static void 1243 win_init_some(newp, oldp) 1244 win_T *newp; 1245 win_T *oldp; 1246 { 1247 /* Use the same argument list. */ 1248 newp->w_alist = oldp->w_alist; 1249 ++newp->w_alist->al_refcount; 1250 newp->w_arg_idx = oldp->w_arg_idx; 1251 1252 /* copy options from existing window */ 1253 win_copy_options(oldp, newp); 1254 } 1255 1256 #endif /* FEAT_WINDOWS */ 1257 1258 #if defined(FEAT_WINDOWS) || defined(PROTO) 1259 /* 1260 * Check if "win" is a pointer to an existing window. 1261 */ 1262 int 1263 win_valid(win) 1264 win_T *win; 1265 { 1266 win_T *wp; 1267 1268 if (win == NULL) 1269 return FALSE; 1270 for (wp = firstwin; wp != NULL; wp = wp->w_next) 1271 if (wp == win) 1272 return TRUE; 1273 return FALSE; 1274 } 1275 1276 /* 1277 * Return the number of windows. 1278 */ 1279 int 1280 win_count() 1281 { 1282 win_T *wp; 1283 int count = 0; 1284 1285 for (wp = firstwin; wp != NULL; wp = wp->w_next) 1286 ++count; 1287 return count; 1288 } 1289 1290 /* 1291 * Make "count" windows on the screen. 1292 * Return actual number of windows on the screen. 1293 * Must be called when there is just one window, filling the whole screen 1294 * (excluding the command line). 1295 */ 1296 int 1297 make_windows(count, vertical) 1298 int count; 1299 int vertical UNUSED; /* split windows vertically if TRUE */ 1300 { 1301 int maxcount; 1302 int todo; 1303 1304 #ifdef FEAT_VERTSPLIT 1305 if (vertical) 1306 { 1307 /* Each windows needs at least 'winminwidth' lines and a separator 1308 * column. */ 1309 maxcount = (curwin->w_width + curwin->w_vsep_width 1310 - (p_wiw - p_wmw)) / (p_wmw + 1); 1311 } 1312 else 1313 #endif 1314 { 1315 /* Each window needs at least 'winminheight' lines and a status line. */ 1316 maxcount = (curwin->w_height + curwin->w_status_height 1317 - (p_wh - p_wmh)) / (p_wmh + STATUS_HEIGHT); 1318 } 1319 1320 if (maxcount < 2) 1321 maxcount = 2; 1322 if (count > maxcount) 1323 count = maxcount; 1324 1325 /* 1326 * add status line now, otherwise first window will be too big 1327 */ 1328 if (count > 1) 1329 last_status(TRUE); 1330 1331 #ifdef FEAT_AUTOCMD 1332 /* 1333 * Don't execute autocommands while creating the windows. Must do that 1334 * when putting the buffers in the windows. 1335 */ 1336 block_autocmds(); 1337 #endif 1338 1339 /* todo is number of windows left to create */ 1340 for (todo = count - 1; todo > 0; --todo) 1341 #ifdef FEAT_VERTSPLIT 1342 if (vertical) 1343 { 1344 if (win_split(curwin->w_width - (curwin->w_width - todo) 1345 / (todo + 1) - 1, WSP_VERT | WSP_ABOVE) == FAIL) 1346 break; 1347 } 1348 else 1349 #endif 1350 { 1351 if (win_split(curwin->w_height - (curwin->w_height - todo 1352 * STATUS_HEIGHT) / (todo + 1) 1353 - STATUS_HEIGHT, WSP_ABOVE) == FAIL) 1354 break; 1355 } 1356 1357 #ifdef FEAT_AUTOCMD 1358 unblock_autocmds(); 1359 #endif 1360 1361 /* return actual number of windows */ 1362 return (count - todo); 1363 } 1364 1365 /* 1366 * Exchange current and next window 1367 */ 1368 static void 1369 win_exchange(Prenum) 1370 long Prenum; 1371 { 1372 frame_T *frp; 1373 frame_T *frp2; 1374 win_T *wp; 1375 win_T *wp2; 1376 int temp; 1377 1378 if (lastwin == firstwin) /* just one window */ 1379 { 1380 beep_flush(); 1381 return; 1382 } 1383 1384 #ifdef FEAT_GUI 1385 need_mouse_correct = TRUE; 1386 #endif 1387 1388 /* 1389 * find window to exchange with 1390 */ 1391 if (Prenum) 1392 { 1393 frp = curwin->w_frame->fr_parent->fr_child; 1394 while (frp != NULL && --Prenum > 0) 1395 frp = frp->fr_next; 1396 } 1397 else if (curwin->w_frame->fr_next != NULL) /* Swap with next */ 1398 frp = curwin->w_frame->fr_next; 1399 else /* Swap last window in row/col with previous */ 1400 frp = curwin->w_frame->fr_prev; 1401 1402 /* We can only exchange a window with another window, not with a frame 1403 * containing windows. */ 1404 if (frp == NULL || frp->fr_win == NULL || frp->fr_win == curwin) 1405 return; 1406 wp = frp->fr_win; 1407 1408 /* 1409 * 1. remove curwin from the list. Remember after which window it was in wp2 1410 * 2. insert curwin before wp in the list 1411 * if wp != wp2 1412 * 3. remove wp from the list 1413 * 4. insert wp after wp2 1414 * 5. exchange the status line height and vsep width. 1415 */ 1416 wp2 = curwin->w_prev; 1417 frp2 = curwin->w_frame->fr_prev; 1418 if (wp->w_prev != curwin) 1419 { 1420 win_remove(curwin, NULL); 1421 frame_remove(curwin->w_frame); 1422 win_append(wp->w_prev, curwin); 1423 frame_insert(frp, curwin->w_frame); 1424 } 1425 if (wp != wp2) 1426 { 1427 win_remove(wp, NULL); 1428 frame_remove(wp->w_frame); 1429 win_append(wp2, wp); 1430 if (frp2 == NULL) 1431 frame_insert(wp->w_frame->fr_parent->fr_child, wp->w_frame); 1432 else 1433 frame_append(frp2, wp->w_frame); 1434 } 1435 temp = curwin->w_status_height; 1436 curwin->w_status_height = wp->w_status_height; 1437 wp->w_status_height = temp; 1438 #ifdef FEAT_VERTSPLIT 1439 temp = curwin->w_vsep_width; 1440 curwin->w_vsep_width = wp->w_vsep_width; 1441 wp->w_vsep_width = temp; 1442 1443 /* If the windows are not in the same frame, exchange the sizes to avoid 1444 * messing up the window layout. Otherwise fix the frame sizes. */ 1445 if (curwin->w_frame->fr_parent != wp->w_frame->fr_parent) 1446 { 1447 temp = curwin->w_height; 1448 curwin->w_height = wp->w_height; 1449 wp->w_height = temp; 1450 temp = curwin->w_width; 1451 curwin->w_width = wp->w_width; 1452 wp->w_width = temp; 1453 } 1454 else 1455 { 1456 frame_fix_height(curwin); 1457 frame_fix_height(wp); 1458 frame_fix_width(curwin); 1459 frame_fix_width(wp); 1460 } 1461 #endif 1462 1463 (void)win_comp_pos(); /* recompute window positions */ 1464 1465 win_enter(wp, TRUE); 1466 redraw_later(CLEAR); 1467 } 1468 1469 /* 1470 * rotate windows: if upwards TRUE the second window becomes the first one 1471 * if upwards FALSE the first window becomes the second one 1472 */ 1473 static void 1474 win_rotate(upwards, count) 1475 int upwards; 1476 int count; 1477 { 1478 win_T *wp1; 1479 win_T *wp2; 1480 frame_T *frp; 1481 int n; 1482 1483 if (firstwin == lastwin) /* nothing to do */ 1484 { 1485 beep_flush(); 1486 return; 1487 } 1488 1489 #ifdef FEAT_GUI 1490 need_mouse_correct = TRUE; 1491 #endif 1492 1493 #ifdef FEAT_VERTSPLIT 1494 /* Check if all frames in this row/col have one window. */ 1495 for (frp = curwin->w_frame->fr_parent->fr_child; frp != NULL; 1496 frp = frp->fr_next) 1497 if (frp->fr_win == NULL) 1498 { 1499 EMSG(_("E443: Cannot rotate when another window is split")); 1500 return; 1501 } 1502 #endif 1503 1504 while (count--) 1505 { 1506 if (upwards) /* first window becomes last window */ 1507 { 1508 /* remove first window/frame from the list */ 1509 frp = curwin->w_frame->fr_parent->fr_child; 1510 wp1 = frp->fr_win; 1511 win_remove(wp1, NULL); 1512 frame_remove(frp); 1513 1514 /* find last frame and append removed window/frame after it */ 1515 for ( ; frp->fr_next != NULL; frp = frp->fr_next) 1516 ; 1517 win_append(frp->fr_win, wp1); 1518 frame_append(frp, wp1->w_frame); 1519 1520 wp2 = frp->fr_win; /* previously last window */ 1521 } 1522 else /* last window becomes first window */ 1523 { 1524 /* find last window/frame in the list and remove it */ 1525 for (frp = curwin->w_frame; frp->fr_next != NULL; 1526 frp = frp->fr_next) 1527 ; 1528 wp1 = frp->fr_win; 1529 wp2 = wp1->w_prev; /* will become last window */ 1530 win_remove(wp1, NULL); 1531 frame_remove(frp); 1532 1533 /* append the removed window/frame before the first in the list */ 1534 win_append(frp->fr_parent->fr_child->fr_win->w_prev, wp1); 1535 frame_insert(frp->fr_parent->fr_child, frp); 1536 } 1537 1538 /* exchange status height and vsep width of old and new last window */ 1539 n = wp2->w_status_height; 1540 wp2->w_status_height = wp1->w_status_height; 1541 wp1->w_status_height = n; 1542 frame_fix_height(wp1); 1543 frame_fix_height(wp2); 1544 #ifdef FEAT_VERTSPLIT 1545 n = wp2->w_vsep_width; 1546 wp2->w_vsep_width = wp1->w_vsep_width; 1547 wp1->w_vsep_width = n; 1548 frame_fix_width(wp1); 1549 frame_fix_width(wp2); 1550 #endif 1551 1552 /* recompute w_winrow and w_wincol for all windows */ 1553 (void)win_comp_pos(); 1554 } 1555 1556 redraw_later(CLEAR); 1557 } 1558 1559 /* 1560 * Move the current window to the very top/bottom/left/right of the screen. 1561 */ 1562 static void 1563 win_totop(size, flags) 1564 int size; 1565 int flags; 1566 { 1567 int dir; 1568 int height = curwin->w_height; 1569 1570 if (lastwin == firstwin) 1571 { 1572 beep_flush(); 1573 return; 1574 } 1575 1576 /* Remove the window and frame from the tree of frames. */ 1577 (void)winframe_remove(curwin, &dir, NULL); 1578 win_remove(curwin, NULL); 1579 last_status(FALSE); /* may need to remove last status line */ 1580 (void)win_comp_pos(); /* recompute window positions */ 1581 1582 /* Split a window on the desired side and put the window there. */ 1583 (void)win_split_ins(size, flags, curwin, dir); 1584 if (!(flags & WSP_VERT)) 1585 { 1586 win_setheight(height); 1587 if (p_ea) 1588 win_equal(curwin, TRUE, 'v'); 1589 } 1590 1591 #if defined(FEAT_GUI) && defined(FEAT_VERTSPLIT) 1592 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 1593 * scrollbars. Have to update them anyway. */ 1594 gui_may_update_scrollbars(); 1595 #endif 1596 } 1597 1598 /* 1599 * Move window "win1" to below/right of "win2" and make "win1" the current 1600 * window. Only works within the same frame! 1601 */ 1602 void 1603 win_move_after(win1, win2) 1604 win_T *win1, *win2; 1605 { 1606 int height; 1607 1608 /* check if the arguments are reasonable */ 1609 if (win1 == win2) 1610 return; 1611 1612 /* check if there is something to do */ 1613 if (win2->w_next != win1) 1614 { 1615 /* may need move the status line/vertical separator of the last window 1616 * */ 1617 if (win1 == lastwin) 1618 { 1619 height = win1->w_prev->w_status_height; 1620 win1->w_prev->w_status_height = win1->w_status_height; 1621 win1->w_status_height = height; 1622 #ifdef FEAT_VERTSPLIT 1623 if (win1->w_prev->w_vsep_width == 1) 1624 { 1625 /* Remove the vertical separator from the last-but-one window, 1626 * add it to the last window. Adjust the frame widths. */ 1627 win1->w_prev->w_vsep_width = 0; 1628 win1->w_prev->w_frame->fr_width -= 1; 1629 win1->w_vsep_width = 1; 1630 win1->w_frame->fr_width += 1; 1631 } 1632 #endif 1633 } 1634 else if (win2 == lastwin) 1635 { 1636 height = win1->w_status_height; 1637 win1->w_status_height = win2->w_status_height; 1638 win2->w_status_height = height; 1639 #ifdef FEAT_VERTSPLIT 1640 if (win1->w_vsep_width == 1) 1641 { 1642 /* Remove the vertical separator from win1, add it to the last 1643 * window, win2. Adjust the frame widths. */ 1644 win2->w_vsep_width = 1; 1645 win2->w_frame->fr_width += 1; 1646 win1->w_vsep_width = 0; 1647 win1->w_frame->fr_width -= 1; 1648 } 1649 #endif 1650 } 1651 win_remove(win1, NULL); 1652 frame_remove(win1->w_frame); 1653 win_append(win2, win1); 1654 frame_append(win2->w_frame, win1->w_frame); 1655 1656 (void)win_comp_pos(); /* recompute w_winrow for all windows */ 1657 redraw_later(NOT_VALID); 1658 } 1659 win_enter(win1, FALSE); 1660 } 1661 1662 /* 1663 * Make all windows the same height. 1664 * 'next_curwin' will soon be the current window, make sure it has enough 1665 * rows. 1666 */ 1667 void 1668 win_equal(next_curwin, current, dir) 1669 win_T *next_curwin; /* pointer to current window to be or NULL */ 1670 int current; /* do only frame with current window */ 1671 int dir; /* 'v' for vertically, 'h' for horizontally, 1672 'b' for both, 0 for using p_ead */ 1673 { 1674 if (dir == 0) 1675 #ifdef FEAT_VERTSPLIT 1676 dir = *p_ead; 1677 #else 1678 dir = 'b'; 1679 #endif 1680 win_equal_rec(next_curwin == NULL ? curwin : next_curwin, current, 1681 topframe, dir, 0, tabline_height(), 1682 (int)Columns, topframe->fr_height); 1683 } 1684 1685 /* 1686 * Set a frame to a new position and height, spreading the available room 1687 * equally over contained frames. 1688 * The window "next_curwin" (if not NULL) should at least get the size from 1689 * 'winheight' and 'winwidth' if possible. 1690 */ 1691 static void 1692 win_equal_rec(next_curwin, current, topfr, dir, col, row, width, height) 1693 win_T *next_curwin; /* pointer to current window to be or NULL */ 1694 int current; /* do only frame with current window */ 1695 frame_T *topfr; /* frame to set size off */ 1696 int dir; /* 'v', 'h' or 'b', see win_equal() */ 1697 int col; /* horizontal position for frame */ 1698 int row; /* vertical position for frame */ 1699 int width; /* new width of frame */ 1700 int height; /* new height of frame */ 1701 { 1702 int n, m; 1703 int extra_sep = 0; 1704 int wincount, totwincount = 0; 1705 frame_T *fr; 1706 int next_curwin_size = 0; 1707 int room = 0; 1708 int new_size; 1709 int has_next_curwin = 0; 1710 int hnc; 1711 1712 if (topfr->fr_layout == FR_LEAF) 1713 { 1714 /* Set the width/height of this frame. 1715 * Redraw when size or position changes */ 1716 if (topfr->fr_height != height || topfr->fr_win->w_winrow != row 1717 #ifdef FEAT_VERTSPLIT 1718 || topfr->fr_width != width || topfr->fr_win->w_wincol != col 1719 #endif 1720 ) 1721 { 1722 topfr->fr_win->w_winrow = row; 1723 frame_new_height(topfr, height, FALSE, FALSE); 1724 #ifdef FEAT_VERTSPLIT 1725 topfr->fr_win->w_wincol = col; 1726 frame_new_width(topfr, width, FALSE, FALSE); 1727 #endif 1728 redraw_all_later(CLEAR); 1729 } 1730 } 1731 #ifdef FEAT_VERTSPLIT 1732 else if (topfr->fr_layout == FR_ROW) 1733 { 1734 topfr->fr_width = width; 1735 topfr->fr_height = height; 1736 1737 if (dir != 'v') /* equalize frame widths */ 1738 { 1739 /* Compute the maximum number of windows horizontally in this 1740 * frame. */ 1741 n = frame_minwidth(topfr, NOWIN); 1742 /* add one for the rightmost window, it doesn't have a separator */ 1743 if (col + width == Columns) 1744 extra_sep = 1; 1745 else 1746 extra_sep = 0; 1747 totwincount = (n + extra_sep) / (p_wmw + 1); 1748 has_next_curwin = frame_has_win(topfr, next_curwin); 1749 1750 /* 1751 * Compute width for "next_curwin" window and room available for 1752 * other windows. 1753 * "m" is the minimal width when counting p_wiw for "next_curwin". 1754 */ 1755 m = frame_minwidth(topfr, next_curwin); 1756 room = width - m; 1757 if (room < 0) 1758 { 1759 next_curwin_size = p_wiw + room; 1760 room = 0; 1761 } 1762 else 1763 { 1764 next_curwin_size = -1; 1765 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 1766 { 1767 /* If 'winfixwidth' set keep the window width if 1768 * possible. 1769 * Watch out for this window being the next_curwin. */ 1770 if (frame_fixed_width(fr)) 1771 { 1772 n = frame_minwidth(fr, NOWIN); 1773 new_size = fr->fr_width; 1774 if (frame_has_win(fr, next_curwin)) 1775 { 1776 room += p_wiw - p_wmw; 1777 next_curwin_size = 0; 1778 if (new_size < p_wiw) 1779 new_size = p_wiw; 1780 } 1781 else 1782 /* These windows don't use up room. */ 1783 totwincount -= (n + (fr->fr_next == NULL 1784 ? extra_sep : 0)) / (p_wmw + 1); 1785 room -= new_size - n; 1786 if (room < 0) 1787 { 1788 new_size += room; 1789 room = 0; 1790 } 1791 fr->fr_newwidth = new_size; 1792 } 1793 } 1794 if (next_curwin_size == -1) 1795 { 1796 if (!has_next_curwin) 1797 next_curwin_size = 0; 1798 else if (totwincount > 1 1799 && (room + (totwincount - 2)) 1800 / (totwincount - 1) > p_wiw) 1801 { 1802 /* Can make all windows wider than 'winwidth', spread 1803 * the room equally. */ 1804 next_curwin_size = (room + p_wiw 1805 + (totwincount - 1) * p_wmw 1806 + (totwincount - 1)) / totwincount; 1807 room -= next_curwin_size - p_wiw; 1808 } 1809 else 1810 next_curwin_size = p_wiw; 1811 } 1812 } 1813 1814 if (has_next_curwin) 1815 --totwincount; /* don't count curwin */ 1816 } 1817 1818 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 1819 { 1820 n = m = 0; 1821 wincount = 1; 1822 if (fr->fr_next == NULL) 1823 /* last frame gets all that remains (avoid roundoff error) */ 1824 new_size = width; 1825 else if (dir == 'v') 1826 new_size = fr->fr_width; 1827 else if (frame_fixed_width(fr)) 1828 { 1829 new_size = fr->fr_newwidth; 1830 wincount = 0; /* doesn't count as a sizeable window */ 1831 } 1832 else 1833 { 1834 /* Compute the maximum number of windows horiz. in "fr". */ 1835 n = frame_minwidth(fr, NOWIN); 1836 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 1837 / (p_wmw + 1); 1838 m = frame_minwidth(fr, next_curwin); 1839 if (has_next_curwin) 1840 hnc = frame_has_win(fr, next_curwin); 1841 else 1842 hnc = FALSE; 1843 if (hnc) /* don't count next_curwin */ 1844 --wincount; 1845 if (totwincount == 0) 1846 new_size = room; 1847 else 1848 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 1849 / totwincount; 1850 if (hnc) /* add next_curwin size */ 1851 { 1852 next_curwin_size -= p_wiw - (m - n); 1853 new_size += next_curwin_size; 1854 room -= new_size - next_curwin_size; 1855 } 1856 else 1857 room -= new_size; 1858 new_size += n; 1859 } 1860 1861 /* Skip frame that is full width when splitting or closing a 1862 * window, unless equalizing all frames. */ 1863 if (!current || dir != 'v' || topfr->fr_parent != NULL 1864 || (new_size != fr->fr_width) 1865 || frame_has_win(fr, next_curwin)) 1866 win_equal_rec(next_curwin, current, fr, dir, col, row, 1867 new_size, height); 1868 col += new_size; 1869 width -= new_size; 1870 totwincount -= wincount; 1871 } 1872 } 1873 #endif 1874 else /* topfr->fr_layout == FR_COL */ 1875 { 1876 #ifdef FEAT_VERTSPLIT 1877 topfr->fr_width = width; 1878 #endif 1879 topfr->fr_height = height; 1880 1881 if (dir != 'h') /* equalize frame heights */ 1882 { 1883 /* Compute maximum number of windows vertically in this frame. */ 1884 n = frame_minheight(topfr, NOWIN); 1885 /* add one for the bottom window if it doesn't have a statusline */ 1886 if (row + height == cmdline_row && p_ls == 0) 1887 extra_sep = 1; 1888 else 1889 extra_sep = 0; 1890 totwincount = (n + extra_sep) / (p_wmh + 1); 1891 has_next_curwin = frame_has_win(topfr, next_curwin); 1892 1893 /* 1894 * Compute height for "next_curwin" window and room available for 1895 * other windows. 1896 * "m" is the minimal height when counting p_wh for "next_curwin". 1897 */ 1898 m = frame_minheight(topfr, next_curwin); 1899 room = height - m; 1900 if (room < 0) 1901 { 1902 /* The room is less then 'winheight', use all space for the 1903 * current window. */ 1904 next_curwin_size = p_wh + room; 1905 room = 0; 1906 } 1907 else 1908 { 1909 next_curwin_size = -1; 1910 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 1911 { 1912 /* If 'winfixheight' set keep the window height if 1913 * possible. 1914 * Watch out for this window being the next_curwin. */ 1915 if (frame_fixed_height(fr)) 1916 { 1917 n = frame_minheight(fr, NOWIN); 1918 new_size = fr->fr_height; 1919 if (frame_has_win(fr, next_curwin)) 1920 { 1921 room += p_wh - p_wmh; 1922 next_curwin_size = 0; 1923 if (new_size < p_wh) 1924 new_size = p_wh; 1925 } 1926 else 1927 /* These windows don't use up room. */ 1928 totwincount -= (n + (fr->fr_next == NULL 1929 ? extra_sep : 0)) / (p_wmh + 1); 1930 room -= new_size - n; 1931 if (room < 0) 1932 { 1933 new_size += room; 1934 room = 0; 1935 } 1936 fr->fr_newheight = new_size; 1937 } 1938 } 1939 if (next_curwin_size == -1) 1940 { 1941 if (!has_next_curwin) 1942 next_curwin_size = 0; 1943 else if (totwincount > 1 1944 && (room + (totwincount - 2)) 1945 / (totwincount - 1) > p_wh) 1946 { 1947 /* can make all windows higher than 'winheight', 1948 * spread the room equally. */ 1949 next_curwin_size = (room + p_wh 1950 + (totwincount - 1) * p_wmh 1951 + (totwincount - 1)) / totwincount; 1952 room -= next_curwin_size - p_wh; 1953 } 1954 else 1955 next_curwin_size = p_wh; 1956 } 1957 } 1958 1959 if (has_next_curwin) 1960 --totwincount; /* don't count curwin */ 1961 } 1962 1963 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 1964 { 1965 n = m = 0; 1966 wincount = 1; 1967 if (fr->fr_next == NULL) 1968 /* last frame gets all that remains (avoid roundoff error) */ 1969 new_size = height; 1970 else if (dir == 'h') 1971 new_size = fr->fr_height; 1972 else if (frame_fixed_height(fr)) 1973 { 1974 new_size = fr->fr_newheight; 1975 wincount = 0; /* doesn't count as a sizeable window */ 1976 } 1977 else 1978 { 1979 /* Compute the maximum number of windows vert. in "fr". */ 1980 n = frame_minheight(fr, NOWIN); 1981 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 1982 / (p_wmh + 1); 1983 m = frame_minheight(fr, next_curwin); 1984 if (has_next_curwin) 1985 hnc = frame_has_win(fr, next_curwin); 1986 else 1987 hnc = FALSE; 1988 if (hnc) /* don't count next_curwin */ 1989 --wincount; 1990 if (totwincount == 0) 1991 new_size = room; 1992 else 1993 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 1994 / totwincount; 1995 if (hnc) /* add next_curwin size */ 1996 { 1997 next_curwin_size -= p_wh - (m - n); 1998 new_size += next_curwin_size; 1999 room -= new_size - next_curwin_size; 2000 } 2001 else 2002 room -= new_size; 2003 new_size += n; 2004 } 2005 /* Skip frame that is full width when splitting or closing a 2006 * window, unless equalizing all frames. */ 2007 if (!current || dir != 'h' || topfr->fr_parent != NULL 2008 || (new_size != fr->fr_height) 2009 || frame_has_win(fr, next_curwin)) 2010 win_equal_rec(next_curwin, current, fr, dir, col, row, 2011 width, new_size); 2012 row += new_size; 2013 height -= new_size; 2014 totwincount -= wincount; 2015 } 2016 } 2017 } 2018 2019 /* 2020 * close all windows for buffer 'buf' 2021 */ 2022 void 2023 close_windows(buf, keep_curwin) 2024 buf_T *buf; 2025 int keep_curwin; /* don't close "curwin" */ 2026 { 2027 win_T *wp; 2028 tabpage_T *tp, *nexttp; 2029 int h = tabline_height(); 2030 2031 ++RedrawingDisabled; 2032 2033 for (wp = firstwin; wp != NULL && lastwin != firstwin; ) 2034 { 2035 if (wp->w_buffer == buf && (!keep_curwin || wp != curwin) 2036 #ifdef FEAT_AUTOCMD 2037 && !(wp->w_closing || wp->w_buffer->b_closing) 2038 #endif 2039 ) 2040 { 2041 win_close(wp, FALSE); 2042 2043 /* Start all over, autocommands may change the window layout. */ 2044 wp = firstwin; 2045 } 2046 else 2047 wp = wp->w_next; 2048 } 2049 2050 /* Also check windows in other tab pages. */ 2051 for (tp = first_tabpage; tp != NULL; tp = nexttp) 2052 { 2053 nexttp = tp->tp_next; 2054 if (tp != curtab) 2055 for (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next) 2056 if (wp->w_buffer == buf 2057 #ifdef FEAT_AUTOCMD 2058 && !(wp->w_closing || wp->w_buffer->b_closing) 2059 #endif 2060 ) 2061 { 2062 win_close_othertab(wp, FALSE, tp); 2063 2064 /* Start all over, the tab page may be closed and 2065 * autocommands may change the window layout. */ 2066 nexttp = first_tabpage; 2067 break; 2068 } 2069 } 2070 2071 --RedrawingDisabled; 2072 2073 if (h != tabline_height()) 2074 shell_new_rows(); 2075 } 2076 2077 /* 2078 * Return TRUE if the current window is the only window that exists (ignoring 2079 * "aucmd_win"). 2080 * Returns FALSE if there is a window, possibly in another tab page. 2081 */ 2082 static int 2083 last_window() 2084 { 2085 return (one_window() && first_tabpage->tp_next == NULL); 2086 } 2087 2088 /* 2089 * Return TRUE if there is only one window other than "aucmd_win" in the 2090 * current tab page. 2091 */ 2092 int 2093 one_window() 2094 { 2095 #ifdef FEAT_AUTOCMD 2096 win_T *wp; 2097 int seen_one = FALSE; 2098 2099 FOR_ALL_WINDOWS(wp) 2100 { 2101 if (wp != aucmd_win) 2102 { 2103 if (seen_one) 2104 return FALSE; 2105 seen_one = TRUE; 2106 } 2107 } 2108 return TRUE; 2109 #else 2110 return firstwin == lastwin; 2111 #endif 2112 } 2113 2114 /* 2115 * Close the possibly last window in a tab page. 2116 * Returns TRUE when the window was closed already. 2117 */ 2118 static int 2119 close_last_window_tabpage(win, free_buf, prev_curtab) 2120 win_T *win; 2121 int free_buf; 2122 tabpage_T *prev_curtab; 2123 { 2124 if (firstwin == lastwin) 2125 { 2126 /* 2127 * Closing the last window in a tab page. First go to another tab 2128 * page and then close the window and the tab page. This avoids that 2129 * curwin and curtab are invalid while we are freeing memory, they may 2130 * be used in GUI events. 2131 * Don't trigger autocommands yet, they may use wrong values, so do 2132 * that below. 2133 */ 2134 goto_tabpage_tp(alt_tabpage(), FALSE); 2135 redraw_tabline = TRUE; 2136 2137 /* Safety check: Autocommands may have closed the window when jumping 2138 * to the other tab page. */ 2139 if (valid_tabpage(prev_curtab) && prev_curtab->tp_firstwin == win) 2140 { 2141 int h = tabline_height(); 2142 2143 win_close_othertab(win, free_buf, prev_curtab); 2144 if (h != tabline_height()) 2145 shell_new_rows(); 2146 } 2147 /* Since goto_tabpage_tp above did not trigger *Enter autocommands, do 2148 * that now. */ 2149 #ifdef FEAT_AUTOCMD 2150 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 2151 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 2152 #endif 2153 return TRUE; 2154 } 2155 return FALSE; 2156 } 2157 2158 /* 2159 * Close window "win". Only works for the current tab page. 2160 * If "free_buf" is TRUE related buffer may be unloaded. 2161 * 2162 * Called by :quit, :close, :xit, :wq and findtag(). 2163 */ 2164 void 2165 win_close(win, free_buf) 2166 win_T *win; 2167 int free_buf; 2168 { 2169 win_T *wp; 2170 #ifdef FEAT_AUTOCMD 2171 int other_buffer = FALSE; 2172 #endif 2173 int close_curwin = FALSE; 2174 int dir; 2175 int help_window = FALSE; 2176 tabpage_T *prev_curtab = curtab; 2177 2178 if (last_window()) 2179 { 2180 EMSG(_("E444: Cannot close last window")); 2181 return; 2182 } 2183 2184 #ifdef FEAT_AUTOCMD 2185 if (win->w_closing || (win->w_buffer != NULL && win->w_buffer->b_closing)) 2186 return; /* window is already being closed */ 2187 if (win == aucmd_win) 2188 { 2189 EMSG(_("E813: Cannot close autocmd window")); 2190 return; 2191 } 2192 if ((firstwin == aucmd_win || lastwin == aucmd_win) && one_window()) 2193 { 2194 EMSG(_("E814: Cannot close window, only autocmd window would remain")); 2195 return; 2196 } 2197 #endif 2198 2199 /* When closing the last window in a tab page first go to another tab page 2200 * and then close the window and the tab page to avoid that curwin and 2201 * curtab are invalid while we are freeing memory. */ 2202 if (close_last_window_tabpage(win, free_buf, prev_curtab)) 2203 return; 2204 2205 /* When closing the help window, try restoring a snapshot after closing 2206 * the window. Otherwise clear the snapshot, it's now invalid. */ 2207 if (win->w_buffer != NULL && win->w_buffer->b_help) 2208 help_window = TRUE; 2209 else 2210 clear_snapshot(curtab, SNAP_HELP_IDX); 2211 2212 #ifdef FEAT_AUTOCMD 2213 if (win == curwin) 2214 { 2215 /* 2216 * Guess which window is going to be the new current window. 2217 * This may change because of the autocommands (sigh). 2218 */ 2219 wp = frame2win(win_altframe(win, NULL)); 2220 2221 /* 2222 * Be careful: If autocommands delete the window or cause this window 2223 * to be the last one left, return now. 2224 */ 2225 if (wp->w_buffer != curbuf) 2226 { 2227 other_buffer = TRUE; 2228 win->w_closing = TRUE; 2229 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 2230 if (!win_valid(win)) 2231 return; 2232 win->w_closing = FALSE; 2233 if (last_window()) 2234 return; 2235 } 2236 win->w_closing = TRUE; 2237 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 2238 if (!win_valid(win)) 2239 return; 2240 win->w_closing = FALSE; 2241 if (last_window()) 2242 return; 2243 # ifdef FEAT_EVAL 2244 /* autocmds may abort script processing */ 2245 if (aborting()) 2246 return; 2247 # endif 2248 } 2249 #endif 2250 2251 #ifdef FEAT_GUI 2252 /* Avoid trouble with scrollbars that are going to be deleted in 2253 * win_free(). */ 2254 if (gui.in_use) 2255 out_flush(); 2256 #endif 2257 2258 #ifdef FEAT_SYN_HL 2259 /* Free independent synblock before the buffer is freed. */ 2260 if (win->w_buffer != NULL) 2261 reset_synblock(win); 2262 #endif 2263 2264 /* 2265 * Close the link to the buffer. 2266 */ 2267 if (win->w_buffer != NULL) 2268 { 2269 #ifdef FEAT_AUTOCMD 2270 win->w_closing = TRUE; 2271 #endif 2272 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, TRUE); 2273 #ifdef FEAT_AUTOCMD 2274 if (win_valid(win)) 2275 win->w_closing = FALSE; 2276 #endif 2277 } 2278 2279 /* Autocommands may have closed the window already, or closed the only 2280 * other window or moved to another tab page. */ 2281 if (!win_valid(win) || last_window() || curtab != prev_curtab 2282 || close_last_window_tabpage(win, free_buf, prev_curtab)) 2283 return; 2284 2285 /* Free the memory used for the window and get the window that received 2286 * the screen space. */ 2287 wp = win_free_mem(win, &dir, NULL); 2288 2289 /* Make sure curwin isn't invalid. It can cause severe trouble when 2290 * printing an error message. For win_equal() curbuf needs to be valid 2291 * too. */ 2292 if (win == curwin) 2293 { 2294 curwin = wp; 2295 #ifdef FEAT_QUICKFIX 2296 if (wp->w_p_pvw || bt_quickfix(wp->w_buffer)) 2297 { 2298 /* 2299 * If the cursor goes to the preview or the quickfix window, try 2300 * finding another window to go to. 2301 */ 2302 for (;;) 2303 { 2304 if (wp->w_next == NULL) 2305 wp = firstwin; 2306 else 2307 wp = wp->w_next; 2308 if (wp == curwin) 2309 break; 2310 if (!wp->w_p_pvw && !bt_quickfix(wp->w_buffer)) 2311 { 2312 curwin = wp; 2313 break; 2314 } 2315 } 2316 } 2317 #endif 2318 curbuf = curwin->w_buffer; 2319 close_curwin = TRUE; 2320 } 2321 if (p_ea 2322 #ifdef FEAT_VERTSPLIT 2323 && (*p_ead == 'b' || *p_ead == dir) 2324 #endif 2325 ) 2326 win_equal(curwin, TRUE, 2327 #ifdef FEAT_VERTSPLIT 2328 dir 2329 #else 2330 0 2331 #endif 2332 ); 2333 else 2334 win_comp_pos(); 2335 if (close_curwin) 2336 { 2337 win_enter_ext(wp, FALSE, TRUE); 2338 #ifdef FEAT_AUTOCMD 2339 if (other_buffer) 2340 /* careful: after this wp and win may be invalid! */ 2341 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2342 #endif 2343 } 2344 2345 /* 2346 * If last window has a status line now and we don't want one, 2347 * remove the status line. 2348 */ 2349 last_status(FALSE); 2350 2351 /* After closing the help window, try restoring the window layout from 2352 * before it was opened. */ 2353 if (help_window) 2354 restore_snapshot(SNAP_HELP_IDX, close_curwin); 2355 2356 #if defined(FEAT_GUI) && defined(FEAT_VERTSPLIT) 2357 /* When 'guioptions' includes 'L' or 'R' may have to remove scrollbars. */ 2358 if (gui.in_use && !win_hasvertsplit()) 2359 gui_init_which_components(NULL); 2360 #endif 2361 2362 redraw_all_later(NOT_VALID); 2363 } 2364 2365 /* 2366 * Close window "win" in tab page "tp", which is not the current tab page. 2367 * This may be the last window in that tab page and result in closing the tab, 2368 * thus "tp" may become invalid! 2369 * Caller must check if buffer is hidden and whether the tabline needs to be 2370 * updated. 2371 */ 2372 void 2373 win_close_othertab(win, free_buf, tp) 2374 win_T *win; 2375 int free_buf; 2376 tabpage_T *tp; 2377 { 2378 win_T *wp; 2379 int dir; 2380 tabpage_T *ptp = NULL; 2381 int free_tp = FALSE; 2382 2383 #ifdef FEAT_AUTOCMD 2384 if (win->w_closing || win->w_buffer->b_closing) 2385 return; /* window is already being closed */ 2386 #endif 2387 2388 /* Close the link to the buffer. */ 2389 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, FALSE); 2390 2391 /* Careful: Autocommands may have closed the tab page or made it the 2392 * current tab page. */ 2393 for (ptp = first_tabpage; ptp != NULL && ptp != tp; ptp = ptp->tp_next) 2394 ; 2395 if (ptp == NULL || tp == curtab) 2396 return; 2397 2398 /* Autocommands may have closed the window already. */ 2399 for (wp = tp->tp_firstwin; wp != NULL && wp != win; wp = wp->w_next) 2400 ; 2401 if (wp == NULL) 2402 return; 2403 2404 /* When closing the last window in a tab page remove the tab page. */ 2405 if (tp == NULL ? firstwin == lastwin : tp->tp_firstwin == tp->tp_lastwin) 2406 { 2407 if (tp == first_tabpage) 2408 first_tabpage = tp->tp_next; 2409 else 2410 { 2411 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tp; 2412 ptp = ptp->tp_next) 2413 ; 2414 if (ptp == NULL) 2415 { 2416 EMSG2(_(e_intern2), "win_close_othertab()"); 2417 return; 2418 } 2419 ptp->tp_next = tp->tp_next; 2420 } 2421 free_tp = TRUE; 2422 } 2423 2424 /* Free the memory used for the window. */ 2425 win_free_mem(win, &dir, tp); 2426 2427 if (free_tp) 2428 free_tabpage(tp); 2429 } 2430 2431 /* 2432 * Free the memory used for a window. 2433 * Returns a pointer to the window that got the freed up space. 2434 */ 2435 static win_T * 2436 win_free_mem(win, dirp, tp) 2437 win_T *win; 2438 int *dirp; /* set to 'v' or 'h' for direction if 'ea' */ 2439 tabpage_T *tp; /* tab page "win" is in, NULL for current */ 2440 { 2441 frame_T *frp; 2442 win_T *wp; 2443 2444 /* Remove the window and its frame from the tree of frames. */ 2445 frp = win->w_frame; 2446 wp = winframe_remove(win, dirp, tp); 2447 vim_free(frp); 2448 win_free(win, tp); 2449 2450 /* When deleting the current window of another tab page select a new 2451 * current window. */ 2452 if (tp != NULL && win == tp->tp_curwin) 2453 tp->tp_curwin = wp; 2454 2455 return wp; 2456 } 2457 2458 #if defined(EXITFREE) || defined(PROTO) 2459 void 2460 win_free_all() 2461 { 2462 int dummy; 2463 2464 # ifdef FEAT_WINDOWS 2465 while (first_tabpage->tp_next != NULL) 2466 tabpage_close(TRUE); 2467 # endif 2468 2469 # ifdef FEAT_AUTOCMD 2470 if (aucmd_win != NULL) 2471 { 2472 (void)win_free_mem(aucmd_win, &dummy, NULL); 2473 aucmd_win = NULL; 2474 } 2475 # endif 2476 2477 while (firstwin != NULL) 2478 (void)win_free_mem(firstwin, &dummy, NULL); 2479 } 2480 #endif 2481 2482 /* 2483 * Remove a window and its frame from the tree of frames. 2484 * Returns a pointer to the window that got the freed up space. 2485 */ 2486 win_T * 2487 winframe_remove(win, dirp, tp) 2488 win_T *win; 2489 int *dirp UNUSED; /* set to 'v' or 'h' for direction if 'ea' */ 2490 tabpage_T *tp; /* tab page "win" is in, NULL for current */ 2491 { 2492 frame_T *frp, *frp2, *frp3; 2493 frame_T *frp_close = win->w_frame; 2494 win_T *wp; 2495 2496 /* 2497 * If there is only one window there is nothing to remove. 2498 */ 2499 if (tp == NULL ? firstwin == lastwin : tp->tp_firstwin == tp->tp_lastwin) 2500 return NULL; 2501 2502 /* 2503 * Remove the window from its frame. 2504 */ 2505 frp2 = win_altframe(win, tp); 2506 wp = frame2win(frp2); 2507 2508 /* Remove this frame from the list of frames. */ 2509 frame_remove(frp_close); 2510 2511 #ifdef FEAT_VERTSPLIT 2512 if (frp_close->fr_parent->fr_layout == FR_COL) 2513 { 2514 #endif 2515 /* When 'winfixheight' is set, try to find another frame in the column 2516 * (as close to the closed frame as possible) to distribute the height 2517 * to. */ 2518 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfh) 2519 { 2520 frp = frp_close->fr_prev; 2521 frp3 = frp_close->fr_next; 2522 while (frp != NULL || frp3 != NULL) 2523 { 2524 if (frp != NULL) 2525 { 2526 if (frp->fr_win != NULL && !frp->fr_win->w_p_wfh) 2527 { 2528 frp2 = frp; 2529 wp = frp->fr_win; 2530 break; 2531 } 2532 frp = frp->fr_prev; 2533 } 2534 if (frp3 != NULL) 2535 { 2536 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfh) 2537 { 2538 frp2 = frp3; 2539 wp = frp3->fr_win; 2540 break; 2541 } 2542 frp3 = frp3->fr_next; 2543 } 2544 } 2545 } 2546 frame_new_height(frp2, frp2->fr_height + frp_close->fr_height, 2547 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2548 #ifdef FEAT_VERTSPLIT 2549 *dirp = 'v'; 2550 } 2551 else 2552 { 2553 /* When 'winfixwidth' is set, try to find another frame in the column 2554 * (as close to the closed frame as possible) to distribute the width 2555 * to. */ 2556 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfw) 2557 { 2558 frp = frp_close->fr_prev; 2559 frp3 = frp_close->fr_next; 2560 while (frp != NULL || frp3 != NULL) 2561 { 2562 if (frp != NULL) 2563 { 2564 if (frp->fr_win != NULL && !frp->fr_win->w_p_wfw) 2565 { 2566 frp2 = frp; 2567 wp = frp->fr_win; 2568 break; 2569 } 2570 frp = frp->fr_prev; 2571 } 2572 if (frp3 != NULL) 2573 { 2574 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfw) 2575 { 2576 frp2 = frp3; 2577 wp = frp3->fr_win; 2578 break; 2579 } 2580 frp3 = frp3->fr_next; 2581 } 2582 } 2583 } 2584 frame_new_width(frp2, frp2->fr_width + frp_close->fr_width, 2585 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2586 *dirp = 'h'; 2587 } 2588 #endif 2589 2590 /* If rows/columns go to a window below/right its positions need to be 2591 * updated. Can only be done after the sizes have been updated. */ 2592 if (frp2 == frp_close->fr_next) 2593 { 2594 int row = win->w_winrow; 2595 int col = W_WINCOL(win); 2596 2597 frame_comp_pos(frp2, &row, &col); 2598 } 2599 2600 if (frp2->fr_next == NULL && frp2->fr_prev == NULL) 2601 { 2602 /* There is no other frame in this list, move its info to the parent 2603 * and remove it. */ 2604 frp2->fr_parent->fr_layout = frp2->fr_layout; 2605 frp2->fr_parent->fr_child = frp2->fr_child; 2606 for (frp = frp2->fr_child; frp != NULL; frp = frp->fr_next) 2607 frp->fr_parent = frp2->fr_parent; 2608 frp2->fr_parent->fr_win = frp2->fr_win; 2609 if (frp2->fr_win != NULL) 2610 frp2->fr_win->w_frame = frp2->fr_parent; 2611 frp = frp2->fr_parent; 2612 vim_free(frp2); 2613 2614 frp2 = frp->fr_parent; 2615 if (frp2 != NULL && frp2->fr_layout == frp->fr_layout) 2616 { 2617 /* The frame above the parent has the same layout, have to merge 2618 * the frames into this list. */ 2619 if (frp2->fr_child == frp) 2620 frp2->fr_child = frp->fr_child; 2621 frp->fr_child->fr_prev = frp->fr_prev; 2622 if (frp->fr_prev != NULL) 2623 frp->fr_prev->fr_next = frp->fr_child; 2624 for (frp3 = frp->fr_child; ; frp3 = frp3->fr_next) 2625 { 2626 frp3->fr_parent = frp2; 2627 if (frp3->fr_next == NULL) 2628 { 2629 frp3->fr_next = frp->fr_next; 2630 if (frp->fr_next != NULL) 2631 frp->fr_next->fr_prev = frp3; 2632 break; 2633 } 2634 } 2635 vim_free(frp); 2636 } 2637 } 2638 2639 return wp; 2640 } 2641 2642 /* 2643 * Find out which frame is going to get the freed up space when "win" is 2644 * closed. 2645 * if 'splitbelow'/'splitleft' the space goes to the window above/left. 2646 * if 'nosplitbelow'/'nosplitleft' the space goes to the window below/right. 2647 * This makes opening a window and closing it immediately keep the same window 2648 * layout. 2649 */ 2650 static frame_T * 2651 win_altframe(win, tp) 2652 win_T *win; 2653 tabpage_T *tp; /* tab page "win" is in, NULL for current */ 2654 { 2655 frame_T *frp; 2656 int b; 2657 2658 if (tp == NULL ? firstwin == lastwin : tp->tp_firstwin == tp->tp_lastwin) 2659 /* Last window in this tab page, will go to next tab page. */ 2660 return alt_tabpage()->tp_curwin->w_frame; 2661 2662 frp = win->w_frame; 2663 #ifdef FEAT_VERTSPLIT 2664 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW) 2665 b = p_spr; 2666 else 2667 #endif 2668 b = p_sb; 2669 if ((!b && frp->fr_next != NULL) || frp->fr_prev == NULL) 2670 return frp->fr_next; 2671 return frp->fr_prev; 2672 } 2673 2674 /* 2675 * Return the tabpage that will be used if the current one is closed. 2676 */ 2677 static tabpage_T * 2678 alt_tabpage() 2679 { 2680 tabpage_T *tp; 2681 2682 /* Use the next tab page if possible. */ 2683 if (curtab->tp_next != NULL) 2684 return curtab->tp_next; 2685 2686 /* Find the last but one tab page. */ 2687 for (tp = first_tabpage; tp->tp_next != curtab; tp = tp->tp_next) 2688 ; 2689 return tp; 2690 } 2691 2692 /* 2693 * Find the left-upper window in frame "frp". 2694 */ 2695 static win_T * 2696 frame2win(frp) 2697 frame_T *frp; 2698 { 2699 while (frp->fr_win == NULL) 2700 frp = frp->fr_child; 2701 return frp->fr_win; 2702 } 2703 2704 /* 2705 * Return TRUE if frame "frp" contains window "wp". 2706 */ 2707 static int 2708 frame_has_win(frp, wp) 2709 frame_T *frp; 2710 win_T *wp; 2711 { 2712 frame_T *p; 2713 2714 if (frp->fr_layout == FR_LEAF) 2715 return frp->fr_win == wp; 2716 2717 for (p = frp->fr_child; p != NULL; p = p->fr_next) 2718 if (frame_has_win(p, wp)) 2719 return TRUE; 2720 return FALSE; 2721 } 2722 2723 /* 2724 * Set a new height for a frame. Recursively sets the height for contained 2725 * frames and windows. Caller must take care of positions. 2726 */ 2727 static void 2728 frame_new_height(topfrp, height, topfirst, wfh) 2729 frame_T *topfrp; 2730 int height; 2731 int topfirst; /* resize topmost contained frame first */ 2732 int wfh; /* obey 'winfixheight' when there is a choice; 2733 may cause the height not to be set */ 2734 { 2735 frame_T *frp; 2736 int extra_lines; 2737 int h; 2738 2739 if (topfrp->fr_win != NULL) 2740 { 2741 /* Simple case: just one window. */ 2742 win_new_height(topfrp->fr_win, 2743 height - topfrp->fr_win->w_status_height); 2744 } 2745 #ifdef FEAT_VERTSPLIT 2746 else if (topfrp->fr_layout == FR_ROW) 2747 { 2748 do 2749 { 2750 /* All frames in this row get the same new height. */ 2751 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 2752 { 2753 frame_new_height(frp, height, topfirst, wfh); 2754 if (frp->fr_height > height) 2755 { 2756 /* Could not fit the windows, make the whole row higher. */ 2757 height = frp->fr_height; 2758 break; 2759 } 2760 } 2761 } 2762 while (frp != NULL); 2763 } 2764 #endif 2765 else /* fr_layout == FR_COL */ 2766 { 2767 /* Complicated case: Resize a column of frames. Resize the bottom 2768 * frame first, frames above that when needed. */ 2769 2770 frp = topfrp->fr_child; 2771 if (wfh) 2772 /* Advance past frames with one window with 'wfh' set. */ 2773 while (frame_fixed_height(frp)) 2774 { 2775 frp = frp->fr_next; 2776 if (frp == NULL) 2777 return; /* no frame without 'wfh', give up */ 2778 } 2779 if (!topfirst) 2780 { 2781 /* Find the bottom frame of this column */ 2782 while (frp->fr_next != NULL) 2783 frp = frp->fr_next; 2784 if (wfh) 2785 /* Advance back for frames with one window with 'wfh' set. */ 2786 while (frame_fixed_height(frp)) 2787 frp = frp->fr_prev; 2788 } 2789 2790 extra_lines = height - topfrp->fr_height; 2791 if (extra_lines < 0) 2792 { 2793 /* reduce height of contained frames, bottom or top frame first */ 2794 while (frp != NULL) 2795 { 2796 h = frame_minheight(frp, NULL); 2797 if (frp->fr_height + extra_lines < h) 2798 { 2799 extra_lines += frp->fr_height - h; 2800 frame_new_height(frp, h, topfirst, wfh); 2801 } 2802 else 2803 { 2804 frame_new_height(frp, frp->fr_height + extra_lines, 2805 topfirst, wfh); 2806 break; 2807 } 2808 if (topfirst) 2809 { 2810 do 2811 frp = frp->fr_next; 2812 while (wfh && frp != NULL && frame_fixed_height(frp)); 2813 } 2814 else 2815 { 2816 do 2817 frp = frp->fr_prev; 2818 while (wfh && frp != NULL && frame_fixed_height(frp)); 2819 } 2820 /* Increase "height" if we could not reduce enough frames. */ 2821 if (frp == NULL) 2822 height -= extra_lines; 2823 } 2824 } 2825 else if (extra_lines > 0) 2826 { 2827 /* increase height of bottom or top frame */ 2828 frame_new_height(frp, frp->fr_height + extra_lines, topfirst, wfh); 2829 } 2830 } 2831 topfrp->fr_height = height; 2832 } 2833 2834 /* 2835 * Return TRUE if height of frame "frp" should not be changed because of 2836 * the 'winfixheight' option. 2837 */ 2838 static int 2839 frame_fixed_height(frp) 2840 frame_T *frp; 2841 { 2842 /* frame with one window: fixed height if 'winfixheight' set. */ 2843 if (frp->fr_win != NULL) 2844 return frp->fr_win->w_p_wfh; 2845 2846 if (frp->fr_layout == FR_ROW) 2847 { 2848 /* The frame is fixed height if one of the frames in the row is fixed 2849 * height. */ 2850 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2851 if (frame_fixed_height(frp)) 2852 return TRUE; 2853 return FALSE; 2854 } 2855 2856 /* frp->fr_layout == FR_COL: The frame is fixed height if all of the 2857 * frames in the row are fixed height. */ 2858 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2859 if (!frame_fixed_height(frp)) 2860 return FALSE; 2861 return TRUE; 2862 } 2863 2864 #ifdef FEAT_VERTSPLIT 2865 /* 2866 * Return TRUE if width of frame "frp" should not be changed because of 2867 * the 'winfixwidth' option. 2868 */ 2869 static int 2870 frame_fixed_width(frp) 2871 frame_T *frp; 2872 { 2873 /* frame with one window: fixed width if 'winfixwidth' set. */ 2874 if (frp->fr_win != NULL) 2875 return frp->fr_win->w_p_wfw; 2876 2877 if (frp->fr_layout == FR_COL) 2878 { 2879 /* The frame is fixed width if one of the frames in the row is fixed 2880 * width. */ 2881 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2882 if (frame_fixed_width(frp)) 2883 return TRUE; 2884 return FALSE; 2885 } 2886 2887 /* frp->fr_layout == FR_ROW: The frame is fixed width if all of the 2888 * frames in the row are fixed width. */ 2889 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2890 if (!frame_fixed_width(frp)) 2891 return FALSE; 2892 return TRUE; 2893 } 2894 2895 /* 2896 * Add a status line to windows at the bottom of "frp". 2897 * Note: Does not check if there is room! 2898 */ 2899 static void 2900 frame_add_statusline(frp) 2901 frame_T *frp; 2902 { 2903 win_T *wp; 2904 2905 if (frp->fr_layout == FR_LEAF) 2906 { 2907 wp = frp->fr_win; 2908 if (wp->w_status_height == 0) 2909 { 2910 if (wp->w_height > 0) /* don't make it negative */ 2911 --wp->w_height; 2912 wp->w_status_height = STATUS_HEIGHT; 2913 } 2914 } 2915 else if (frp->fr_layout == FR_ROW) 2916 { 2917 /* Handle all the frames in the row. */ 2918 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2919 frame_add_statusline(frp); 2920 } 2921 else /* frp->fr_layout == FR_COL */ 2922 { 2923 /* Only need to handle the last frame in the column. */ 2924 for (frp = frp->fr_child; frp->fr_next != NULL; frp = frp->fr_next) 2925 ; 2926 frame_add_statusline(frp); 2927 } 2928 } 2929 2930 /* 2931 * Set width of a frame. Handles recursively going through contained frames. 2932 * May remove separator line for windows at the right side (for win_close()). 2933 */ 2934 static void 2935 frame_new_width(topfrp, width, leftfirst, wfw) 2936 frame_T *topfrp; 2937 int width; 2938 int leftfirst; /* resize leftmost contained frame first */ 2939 int wfw; /* obey 'winfixwidth' when there is a choice; 2940 may cause the width not to be set */ 2941 { 2942 frame_T *frp; 2943 int extra_cols; 2944 int w; 2945 win_T *wp; 2946 2947 if (topfrp->fr_layout == FR_LEAF) 2948 { 2949 /* Simple case: just one window. */ 2950 wp = topfrp->fr_win; 2951 /* Find out if there are any windows right of this one. */ 2952 for (frp = topfrp; frp->fr_parent != NULL; frp = frp->fr_parent) 2953 if (frp->fr_parent->fr_layout == FR_ROW && frp->fr_next != NULL) 2954 break; 2955 if (frp->fr_parent == NULL) 2956 wp->w_vsep_width = 0; 2957 win_new_width(wp, width - wp->w_vsep_width); 2958 } 2959 else if (topfrp->fr_layout == FR_COL) 2960 { 2961 do 2962 { 2963 /* All frames in this column get the same new width. */ 2964 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 2965 { 2966 frame_new_width(frp, width, leftfirst, wfw); 2967 if (frp->fr_width > width) 2968 { 2969 /* Could not fit the windows, make whole column wider. */ 2970 width = frp->fr_width; 2971 break; 2972 } 2973 } 2974 } while (frp != NULL); 2975 } 2976 else /* fr_layout == FR_ROW */ 2977 { 2978 /* Complicated case: Resize a row of frames. Resize the rightmost 2979 * frame first, frames left of it when needed. */ 2980 2981 frp = topfrp->fr_child; 2982 if (wfw) 2983 /* Advance past frames with one window with 'wfw' set. */ 2984 while (frame_fixed_width(frp)) 2985 { 2986 frp = frp->fr_next; 2987 if (frp == NULL) 2988 return; /* no frame without 'wfw', give up */ 2989 } 2990 if (!leftfirst) 2991 { 2992 /* Find the rightmost frame of this row */ 2993 while (frp->fr_next != NULL) 2994 frp = frp->fr_next; 2995 if (wfw) 2996 /* Advance back for frames with one window with 'wfw' set. */ 2997 while (frame_fixed_width(frp)) 2998 frp = frp->fr_prev; 2999 } 3000 3001 extra_cols = width - topfrp->fr_width; 3002 if (extra_cols < 0) 3003 { 3004 /* reduce frame width, rightmost frame first */ 3005 while (frp != NULL) 3006 { 3007 w = frame_minwidth(frp, NULL); 3008 if (frp->fr_width + extra_cols < w) 3009 { 3010 extra_cols += frp->fr_width - w; 3011 frame_new_width(frp, w, leftfirst, wfw); 3012 } 3013 else 3014 { 3015 frame_new_width(frp, frp->fr_width + extra_cols, 3016 leftfirst, wfw); 3017 break; 3018 } 3019 if (leftfirst) 3020 { 3021 do 3022 frp = frp->fr_next; 3023 while (wfw && frp != NULL && frame_fixed_width(frp)); 3024 } 3025 else 3026 { 3027 do 3028 frp = frp->fr_prev; 3029 while (wfw && frp != NULL && frame_fixed_width(frp)); 3030 } 3031 /* Increase "width" if we could not reduce enough frames. */ 3032 if (frp == NULL) 3033 width -= extra_cols; 3034 } 3035 } 3036 else if (extra_cols > 0) 3037 { 3038 /* increase width of rightmost frame */ 3039 frame_new_width(frp, frp->fr_width + extra_cols, leftfirst, wfw); 3040 } 3041 } 3042 topfrp->fr_width = width; 3043 } 3044 3045 /* 3046 * Add the vertical separator to windows at the right side of "frp". 3047 * Note: Does not check if there is room! 3048 */ 3049 static void 3050 frame_add_vsep(frp) 3051 frame_T *frp; 3052 { 3053 win_T *wp; 3054 3055 if (frp->fr_layout == FR_LEAF) 3056 { 3057 wp = frp->fr_win; 3058 if (wp->w_vsep_width == 0) 3059 { 3060 if (wp->w_width > 0) /* don't make it negative */ 3061 --wp->w_width; 3062 wp->w_vsep_width = 1; 3063 } 3064 } 3065 else if (frp->fr_layout == FR_COL) 3066 { 3067 /* Handle all the frames in the column. */ 3068 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 3069 frame_add_vsep(frp); 3070 } 3071 else /* frp->fr_layout == FR_ROW */ 3072 { 3073 /* Only need to handle the last frame in the row. */ 3074 frp = frp->fr_child; 3075 while (frp->fr_next != NULL) 3076 frp = frp->fr_next; 3077 frame_add_vsep(frp); 3078 } 3079 } 3080 3081 /* 3082 * Set frame width from the window it contains. 3083 */ 3084 static void 3085 frame_fix_width(wp) 3086 win_T *wp; 3087 { 3088 wp->w_frame->fr_width = wp->w_width + wp->w_vsep_width; 3089 } 3090 #endif 3091 3092 /* 3093 * Set frame height from the window it contains. 3094 */ 3095 static void 3096 frame_fix_height(wp) 3097 win_T *wp; 3098 { 3099 wp->w_frame->fr_height = wp->w_height + wp->w_status_height; 3100 } 3101 3102 /* 3103 * Compute the minimal height for frame "topfrp". 3104 * Uses the 'winminheight' option. 3105 * When "next_curwin" isn't NULL, use p_wh for this window. 3106 * When "next_curwin" is NOWIN, don't use at least one line for the current 3107 * window. 3108 */ 3109 static int 3110 frame_minheight(topfrp, next_curwin) 3111 frame_T *topfrp; 3112 win_T *next_curwin; 3113 { 3114 frame_T *frp; 3115 int m; 3116 #ifdef FEAT_VERTSPLIT 3117 int n; 3118 #endif 3119 3120 if (topfrp->fr_win != NULL) 3121 { 3122 if (topfrp->fr_win == next_curwin) 3123 m = p_wh + topfrp->fr_win->w_status_height; 3124 else 3125 { 3126 /* window: minimal height of the window plus status line */ 3127 m = p_wmh + topfrp->fr_win->w_status_height; 3128 /* Current window is minimal one line high */ 3129 if (p_wmh == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3130 ++m; 3131 } 3132 } 3133 #ifdef FEAT_VERTSPLIT 3134 else if (topfrp->fr_layout == FR_ROW) 3135 { 3136 /* get the minimal height from each frame in this row */ 3137 m = 0; 3138 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3139 { 3140 n = frame_minheight(frp, next_curwin); 3141 if (n > m) 3142 m = n; 3143 } 3144 } 3145 #endif 3146 else 3147 { 3148 /* Add up the minimal heights for all frames in this column. */ 3149 m = 0; 3150 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3151 m += frame_minheight(frp, next_curwin); 3152 } 3153 3154 return m; 3155 } 3156 3157 #ifdef FEAT_VERTSPLIT 3158 /* 3159 * Compute the minimal width for frame "topfrp". 3160 * When "next_curwin" isn't NULL, use p_wiw for this window. 3161 * When "next_curwin" is NOWIN, don't use at least one column for the current 3162 * window. 3163 */ 3164 static int 3165 frame_minwidth(topfrp, next_curwin) 3166 frame_T *topfrp; 3167 win_T *next_curwin; /* use p_wh and p_wiw for next_curwin */ 3168 { 3169 frame_T *frp; 3170 int m, n; 3171 3172 if (topfrp->fr_win != NULL) 3173 { 3174 if (topfrp->fr_win == next_curwin) 3175 m = p_wiw + topfrp->fr_win->w_vsep_width; 3176 else 3177 { 3178 /* window: minimal width of the window plus separator column */ 3179 m = p_wmw + topfrp->fr_win->w_vsep_width; 3180 /* Current window is minimal one column wide */ 3181 if (p_wmw == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3182 ++m; 3183 } 3184 } 3185 else if (topfrp->fr_layout == FR_COL) 3186 { 3187 /* get the minimal width from each frame in this column */ 3188 m = 0; 3189 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3190 { 3191 n = frame_minwidth(frp, next_curwin); 3192 if (n > m) 3193 m = n; 3194 } 3195 } 3196 else 3197 { 3198 /* Add up the minimal widths for all frames in this row. */ 3199 m = 0; 3200 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3201 m += frame_minwidth(frp, next_curwin); 3202 } 3203 3204 return m; 3205 } 3206 #endif 3207 3208 3209 /* 3210 * Try to close all windows except current one. 3211 * Buffers in the other windows become hidden if 'hidden' is set, or '!' is 3212 * used and the buffer was modified. 3213 * 3214 * Used by ":bdel" and ":only". 3215 */ 3216 void 3217 close_others(message, forceit) 3218 int message; 3219 int forceit; /* always hide all other windows */ 3220 { 3221 win_T *wp; 3222 win_T *nextwp; 3223 int r; 3224 3225 if (one_window()) 3226 { 3227 if (message 3228 #ifdef FEAT_AUTOCMD 3229 && !autocmd_busy 3230 #endif 3231 ) 3232 MSG(_(m_onlyone)); 3233 return; 3234 } 3235 3236 /* Be very careful here: autocommands may change the window layout. */ 3237 for (wp = firstwin; win_valid(wp); wp = nextwp) 3238 { 3239 nextwp = wp->w_next; 3240 if (wp != curwin) /* don't close current window */ 3241 { 3242 3243 /* Check if it's allowed to abandon this window */ 3244 r = can_abandon(wp->w_buffer, forceit); 3245 #ifdef FEAT_AUTOCMD 3246 if (!win_valid(wp)) /* autocommands messed wp up */ 3247 { 3248 nextwp = firstwin; 3249 continue; 3250 } 3251 #endif 3252 if (!r) 3253 { 3254 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 3255 if (message && (p_confirm || cmdmod.confirm) && p_write) 3256 { 3257 dialog_changed(wp->w_buffer, FALSE); 3258 # ifdef FEAT_AUTOCMD 3259 if (!win_valid(wp)) /* autocommands messed wp up */ 3260 { 3261 nextwp = firstwin; 3262 continue; 3263 } 3264 # endif 3265 } 3266 if (bufIsChanged(wp->w_buffer)) 3267 #endif 3268 continue; 3269 } 3270 win_close(wp, !P_HID(wp->w_buffer) && !bufIsChanged(wp->w_buffer)); 3271 } 3272 } 3273 3274 if (message && lastwin != firstwin) 3275 EMSG(_("E445: Other window contains changes")); 3276 } 3277 3278 #endif /* FEAT_WINDOWS */ 3279 3280 /* 3281 * Init the current window "curwin". 3282 * Called when a new file is being edited. 3283 */ 3284 void 3285 curwin_init() 3286 { 3287 win_init_empty(curwin); 3288 } 3289 3290 void 3291 win_init_empty(wp) 3292 win_T *wp; 3293 { 3294 redraw_win_later(wp, NOT_VALID); 3295 wp->w_lines_valid = 0; 3296 wp->w_cursor.lnum = 1; 3297 wp->w_curswant = wp->w_cursor.col = 0; 3298 #ifdef FEAT_VIRTUALEDIT 3299 wp->w_cursor.coladd = 0; 3300 #endif 3301 wp->w_pcmark.lnum = 1; /* pcmark not cleared but set to line 1 */ 3302 wp->w_pcmark.col = 0; 3303 wp->w_prev_pcmark.lnum = 0; 3304 wp->w_prev_pcmark.col = 0; 3305 wp->w_topline = 1; 3306 #ifdef FEAT_DIFF 3307 wp->w_topfill = 0; 3308 #endif 3309 wp->w_botline = 2; 3310 #ifdef FEAT_FKMAP 3311 if (wp->w_p_rl) 3312 wp->w_farsi = W_CONV + W_R_L; 3313 else 3314 wp->w_farsi = W_CONV; 3315 #endif 3316 #ifdef FEAT_SYN_HL 3317 wp->w_s = &wp->w_buffer->b_s; 3318 #endif 3319 } 3320 3321 /* 3322 * Allocate the first window and put an empty buffer in it. 3323 * Called from main(). 3324 * Return FAIL when something goes wrong (out of memory). 3325 */ 3326 int 3327 win_alloc_first() 3328 { 3329 if (win_alloc_firstwin(NULL) == FAIL) 3330 return FAIL; 3331 3332 #ifdef FEAT_WINDOWS 3333 first_tabpage = alloc_tabpage(); 3334 if (first_tabpage == NULL) 3335 return FAIL; 3336 first_tabpage->tp_topframe = topframe; 3337 curtab = first_tabpage; 3338 #endif 3339 3340 return OK; 3341 } 3342 3343 #if defined(FEAT_AUTOCMD) || defined(PROTO) 3344 /* 3345 * Init "aucmd_win". This can only be done after the first 3346 * window is fully initialized, thus it can't be in win_alloc_first(). 3347 */ 3348 void 3349 win_alloc_aucmd_win() 3350 { 3351 aucmd_win = win_alloc(NULL, TRUE); 3352 if (aucmd_win != NULL) 3353 { 3354 win_init_some(aucmd_win, curwin); 3355 RESET_BINDING(aucmd_win); 3356 new_frame(aucmd_win); 3357 } 3358 } 3359 #endif 3360 3361 /* 3362 * Allocate the first window or the first window in a new tab page. 3363 * When "oldwin" is NULL create an empty buffer for it. 3364 * When "oldwin" is not NULL copy info from it to the new window (only with 3365 * FEAT_WINDOWS). 3366 * Return FAIL when something goes wrong (out of memory). 3367 */ 3368 static int 3369 win_alloc_firstwin(oldwin) 3370 win_T *oldwin; 3371 { 3372 curwin = win_alloc(NULL, FALSE); 3373 if (oldwin == NULL) 3374 { 3375 /* Very first window, need to create an empty buffer for it and 3376 * initialize from scratch. */ 3377 curbuf = buflist_new(NULL, NULL, 1L, BLN_LISTED); 3378 if (curwin == NULL || curbuf == NULL) 3379 return FAIL; 3380 curwin->w_buffer = curbuf; 3381 #ifdef FEAT_SYN_HL 3382 curwin->w_s = &(curbuf->b_s); 3383 #endif 3384 curbuf->b_nwindows = 1; /* there is one window */ 3385 #ifdef FEAT_WINDOWS 3386 curwin->w_alist = &global_alist; 3387 #endif 3388 curwin_init(); /* init current window */ 3389 } 3390 #ifdef FEAT_WINDOWS 3391 else 3392 { 3393 /* First window in new tab page, initialize it from "oldwin". */ 3394 win_init(curwin, oldwin, 0); 3395 3396 /* We don't want cursor- and scroll-binding in the first window. */ 3397 RESET_BINDING(curwin); 3398 } 3399 #endif 3400 3401 new_frame(curwin); 3402 if (curwin->w_frame == NULL) 3403 return FAIL; 3404 topframe = curwin->w_frame; 3405 #ifdef FEAT_VERTSPLIT 3406 topframe->fr_width = Columns; 3407 #endif 3408 topframe->fr_height = Rows - p_ch; 3409 topframe->fr_win = curwin; 3410 3411 return OK; 3412 } 3413 3414 /* 3415 * Create a frame for window "wp". 3416 */ 3417 static void 3418 new_frame(win_T *wp) 3419 { 3420 frame_T *frp = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); 3421 3422 wp->w_frame = frp; 3423 if (frp != NULL) 3424 { 3425 frp->fr_layout = FR_LEAF; 3426 frp->fr_win = wp; 3427 } 3428 } 3429 3430 /* 3431 * Initialize the window and frame size to the maximum. 3432 */ 3433 void 3434 win_init_size() 3435 { 3436 firstwin->w_height = ROWS_AVAIL; 3437 topframe->fr_height = ROWS_AVAIL; 3438 #ifdef FEAT_VERTSPLIT 3439 firstwin->w_width = Columns; 3440 topframe->fr_width = Columns; 3441 #endif 3442 } 3443 3444 #if defined(FEAT_WINDOWS) || defined(PROTO) 3445 3446 /* 3447 * Allocate a new tabpage_T and init the values. 3448 * Returns NULL when out of memory. 3449 */ 3450 static tabpage_T * 3451 alloc_tabpage() 3452 { 3453 tabpage_T *tp; 3454 3455 tp = (tabpage_T *)alloc_clear((unsigned)sizeof(tabpage_T)); 3456 if (tp != NULL) 3457 { 3458 # ifdef FEAT_GUI 3459 int i; 3460 3461 for (i = 0; i < 3; i++) 3462 tp->tp_prev_which_scrollbars[i] = -1; 3463 # endif 3464 # ifdef FEAT_DIFF 3465 tp->tp_diff_invalid = TRUE; 3466 # endif 3467 #ifdef FEAT_EVAL 3468 /* init t: variables */ 3469 init_var_dict(&tp->tp_vars, &tp->tp_winvar, VAR_SCOPE); 3470 #endif 3471 tp->tp_ch_used = p_ch; 3472 } 3473 return tp; 3474 } 3475 3476 void 3477 free_tabpage(tp) 3478 tabpage_T *tp; 3479 { 3480 int idx; 3481 3482 # ifdef FEAT_DIFF 3483 diff_clear(tp); 3484 # endif 3485 for (idx = 0; idx < SNAP_COUNT; ++idx) 3486 clear_snapshot(tp, idx); 3487 #ifdef FEAT_EVAL 3488 vars_clear(&tp->tp_vars.dv_hashtab); /* free all t: variables */ 3489 #endif 3490 vim_free(tp); 3491 } 3492 3493 /* 3494 * Create a new Tab page with one window. 3495 * It will edit the current buffer, like after ":split". 3496 * When "after" is 0 put it just after the current Tab page. 3497 * Otherwise put it just before tab page "after". 3498 * Return FAIL or OK. 3499 */ 3500 int 3501 win_new_tabpage(after) 3502 int after; 3503 { 3504 tabpage_T *tp = curtab; 3505 tabpage_T *newtp; 3506 int n; 3507 3508 newtp = alloc_tabpage(); 3509 if (newtp == NULL) 3510 return FAIL; 3511 3512 /* Remember the current windows in this Tab page. */ 3513 if (leave_tabpage(curbuf) == FAIL) 3514 { 3515 vim_free(newtp); 3516 return FAIL; 3517 } 3518 curtab = newtp; 3519 3520 /* Create a new empty window. */ 3521 if (win_alloc_firstwin(tp->tp_curwin) == OK) 3522 { 3523 /* Make the new Tab page the new topframe. */ 3524 if (after == 1) 3525 { 3526 /* New tab page becomes the first one. */ 3527 newtp->tp_next = first_tabpage; 3528 first_tabpage = newtp; 3529 } 3530 else 3531 { 3532 if (after > 0) 3533 { 3534 /* Put new tab page before tab page "after". */ 3535 n = 2; 3536 for (tp = first_tabpage; tp->tp_next != NULL 3537 && n < after; tp = tp->tp_next) 3538 ++n; 3539 } 3540 newtp->tp_next = tp->tp_next; 3541 tp->tp_next = newtp; 3542 } 3543 win_init_size(); 3544 firstwin->w_winrow = tabline_height(); 3545 win_comp_scroll(curwin); 3546 3547 newtp->tp_topframe = topframe; 3548 last_status(FALSE); 3549 3550 #if defined(FEAT_GUI) 3551 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 3552 * scrollbars. Have to update them anyway. */ 3553 gui_may_update_scrollbars(); 3554 #endif 3555 3556 redraw_all_later(CLEAR); 3557 #ifdef FEAT_AUTOCMD 3558 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3559 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 3560 #endif 3561 return OK; 3562 } 3563 3564 /* Failed, get back the previous Tab page */ 3565 enter_tabpage(curtab, curbuf, TRUE); 3566 return FAIL; 3567 } 3568 3569 /* 3570 * Open a new tab page if ":tab cmd" was used. It will edit the same buffer, 3571 * like with ":split". 3572 * Returns OK if a new tab page was created, FAIL otherwise. 3573 */ 3574 int 3575 may_open_tabpage() 3576 { 3577 int n = (cmdmod.tab == 0) ? postponed_split_tab : cmdmod.tab; 3578 3579 if (n != 0) 3580 { 3581 cmdmod.tab = 0; /* reset it to avoid doing it twice */ 3582 postponed_split_tab = 0; 3583 return win_new_tabpage(n); 3584 } 3585 return FAIL; 3586 } 3587 3588 /* 3589 * Create up to "maxcount" tabpages with empty windows. 3590 * Returns the number of resulting tab pages. 3591 */ 3592 int 3593 make_tabpages(maxcount) 3594 int maxcount; 3595 { 3596 int count = maxcount; 3597 int todo; 3598 3599 /* Limit to 'tabpagemax' tabs. */ 3600 if (count > p_tpm) 3601 count = p_tpm; 3602 3603 #ifdef FEAT_AUTOCMD 3604 /* 3605 * Don't execute autocommands while creating the tab pages. Must do that 3606 * when putting the buffers in the windows. 3607 */ 3608 block_autocmds(); 3609 #endif 3610 3611 for (todo = count - 1; todo > 0; --todo) 3612 if (win_new_tabpage(0) == FAIL) 3613 break; 3614 3615 #ifdef FEAT_AUTOCMD 3616 unblock_autocmds(); 3617 #endif 3618 3619 /* return actual number of tab pages */ 3620 return (count - todo); 3621 } 3622 3623 /* 3624 * Return TRUE when "tpc" points to a valid tab page. 3625 */ 3626 int 3627 valid_tabpage(tpc) 3628 tabpage_T *tpc; 3629 { 3630 tabpage_T *tp; 3631 3632 for (tp = first_tabpage; tp != NULL; tp = tp->tp_next) 3633 if (tp == tpc) 3634 return TRUE; 3635 return FALSE; 3636 } 3637 3638 /* 3639 * Find tab page "n" (first one is 1). Returns NULL when not found. 3640 */ 3641 tabpage_T * 3642 find_tabpage(n) 3643 int n; 3644 { 3645 tabpage_T *tp; 3646 int i = 1; 3647 3648 for (tp = first_tabpage; tp != NULL && i != n; tp = tp->tp_next) 3649 ++i; 3650 return tp; 3651 } 3652 3653 /* 3654 * Get index of tab page "tp". First one has index 1. 3655 * When not found returns number of tab pages plus one. 3656 */ 3657 int 3658 tabpage_index(ftp) 3659 tabpage_T *ftp; 3660 { 3661 int i = 1; 3662 tabpage_T *tp; 3663 3664 for (tp = first_tabpage; tp != NULL && tp != ftp; tp = tp->tp_next) 3665 ++i; 3666 return i; 3667 } 3668 3669 /* 3670 * Prepare for leaving the current tab page. 3671 * When autocomands change "curtab" we don't leave the tab page and return 3672 * FAIL. 3673 * Careful: When OK is returned need to get a new tab page very very soon! 3674 */ 3675 static int 3676 leave_tabpage(new_curbuf) 3677 buf_T *new_curbuf UNUSED; /* what is going to be the new curbuf, 3678 NULL if unknown */ 3679 { 3680 tabpage_T *tp = curtab; 3681 3682 #ifdef FEAT_VISUAL 3683 reset_VIsual_and_resel(); /* stop Visual mode */ 3684 #endif 3685 #ifdef FEAT_AUTOCMD 3686 if (new_curbuf != curbuf) 3687 { 3688 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 3689 if (curtab != tp) 3690 return FAIL; 3691 } 3692 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 3693 if (curtab != tp) 3694 return FAIL; 3695 apply_autocmds(EVENT_TABLEAVE, NULL, NULL, FALSE, curbuf); 3696 if (curtab != tp) 3697 return FAIL; 3698 #endif 3699 #if defined(FEAT_GUI) 3700 /* Remove the scrollbars. They may be added back later. */ 3701 if (gui.in_use) 3702 gui_remove_scrollbars(); 3703 #endif 3704 tp->tp_curwin = curwin; 3705 tp->tp_prevwin = prevwin; 3706 tp->tp_firstwin = firstwin; 3707 tp->tp_lastwin = lastwin; 3708 tp->tp_old_Rows = Rows; 3709 tp->tp_old_Columns = Columns; 3710 firstwin = NULL; 3711 lastwin = NULL; 3712 return OK; 3713 } 3714 3715 /* 3716 * Start using tab page "tp". 3717 * Only to be used after leave_tabpage() or freeing the current tab page. 3718 * Only trigger *Enter autocommands when trigger_autocmds is TRUE. 3719 */ 3720 static void 3721 enter_tabpage(tp, old_curbuf, trigger_autocmds) 3722 tabpage_T *tp; 3723 buf_T *old_curbuf UNUSED; 3724 int trigger_autocmds UNUSED; 3725 { 3726 int old_off = tp->tp_firstwin->w_winrow; 3727 win_T *next_prevwin = tp->tp_prevwin; 3728 3729 curtab = tp; 3730 firstwin = tp->tp_firstwin; 3731 lastwin = tp->tp_lastwin; 3732 topframe = tp->tp_topframe; 3733 3734 /* We would like doing the TabEnter event first, but we don't have a 3735 * valid current window yet, which may break some commands. 3736 * This triggers autocommands, thus may make "tp" invalid. */ 3737 win_enter_ext(tp->tp_curwin, FALSE, TRUE); 3738 prevwin = next_prevwin; 3739 3740 last_status(FALSE); /* status line may appear or disappear */ 3741 (void)win_comp_pos(); /* recompute w_winrow for all windows */ 3742 must_redraw = CLEAR; /* need to redraw everything */ 3743 #ifdef FEAT_DIFF 3744 diff_need_scrollbind = TRUE; 3745 #endif 3746 3747 /* The tabpage line may have appeared or disappeared, may need to resize 3748 * the frames for that. When the Vim window was resized need to update 3749 * frame sizes too. Use the stored value of p_ch, so that it can be 3750 * different for each tab page. */ 3751 p_ch = curtab->tp_ch_used; 3752 if (curtab->tp_old_Rows != Rows || (old_off != firstwin->w_winrow 3753 #ifdef FEAT_GUI_TABLINE 3754 && !gui_use_tabline() 3755 #endif 3756 )) 3757 shell_new_rows(); 3758 #ifdef FEAT_VERTSPLIT 3759 if (curtab->tp_old_Columns != Columns && starting == 0) 3760 shell_new_columns(); /* update window widths */ 3761 #endif 3762 3763 #if defined(FEAT_GUI) 3764 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 3765 * scrollbars. Have to update them anyway. */ 3766 gui_may_update_scrollbars(); 3767 #endif 3768 3769 #ifdef FEAT_AUTOCMD 3770 /* Apply autocommands after updating the display, when 'rows' and 3771 * 'columns' have been set correctly. */ 3772 if (trigger_autocmds) 3773 { 3774 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3775 if (old_curbuf != curbuf) 3776 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 3777 } 3778 #endif 3779 3780 redraw_all_later(CLEAR); 3781 } 3782 3783 /* 3784 * Go to tab page "n". For ":tab N" and "Ngt". 3785 * When "n" is 9999 go to the last tab page. 3786 */ 3787 void 3788 goto_tabpage(n) 3789 int n; 3790 { 3791 tabpage_T *tp; 3792 tabpage_T *ttp; 3793 int i; 3794 3795 if (text_locked()) 3796 { 3797 /* Not allowed when editing the command line. */ 3798 #ifdef FEAT_CMDWIN 3799 if (cmdwin_type != 0) 3800 EMSG(_(e_cmdwin)); 3801 else 3802 #endif 3803 EMSG(_(e_secure)); 3804 return; 3805 } 3806 3807 /* If there is only one it can't work. */ 3808 if (first_tabpage->tp_next == NULL) 3809 { 3810 if (n > 1) 3811 beep_flush(); 3812 return; 3813 } 3814 3815 if (n == 0) 3816 { 3817 /* No count, go to next tab page, wrap around end. */ 3818 if (curtab->tp_next == NULL) 3819 tp = first_tabpage; 3820 else 3821 tp = curtab->tp_next; 3822 } 3823 else if (n < 0) 3824 { 3825 /* "gT": go to previous tab page, wrap around end. "N gT" repeats 3826 * this N times. */ 3827 ttp = curtab; 3828 for (i = n; i < 0; ++i) 3829 { 3830 for (tp = first_tabpage; tp->tp_next != ttp && tp->tp_next != NULL; 3831 tp = tp->tp_next) 3832 ; 3833 ttp = tp; 3834 } 3835 } 3836 else if (n == 9999) 3837 { 3838 /* Go to last tab page. */ 3839 for (tp = first_tabpage; tp->tp_next != NULL; tp = tp->tp_next) 3840 ; 3841 } 3842 else 3843 { 3844 /* Go to tab page "n". */ 3845 tp = find_tabpage(n); 3846 if (tp == NULL) 3847 { 3848 beep_flush(); 3849 return; 3850 } 3851 } 3852 3853 goto_tabpage_tp(tp, TRUE); 3854 3855 #ifdef FEAT_GUI_TABLINE 3856 if (gui_use_tabline()) 3857 gui_mch_set_curtab(tabpage_index(curtab)); 3858 #endif 3859 } 3860 3861 /* 3862 * Go to tabpage "tp". 3863 * Only trigger *Enter autocommands when trigger_autocmds is TRUE. 3864 * Note: doesn't update the GUI tab. 3865 */ 3866 void 3867 goto_tabpage_tp(tp, trigger_autocmds) 3868 tabpage_T *tp; 3869 int trigger_autocmds; 3870 { 3871 /* Don't repeat a message in another tab page. */ 3872 set_keep_msg(NULL, 0); 3873 3874 if (tp != curtab && leave_tabpage(tp->tp_curwin->w_buffer) == OK) 3875 { 3876 if (valid_tabpage(tp)) 3877 enter_tabpage(tp, curbuf, trigger_autocmds); 3878 else 3879 enter_tabpage(curtab, curbuf, trigger_autocmds); 3880 } 3881 } 3882 3883 /* 3884 * Enter window "wp" in tab page "tp". 3885 * Also updates the GUI tab. 3886 */ 3887 void 3888 goto_tabpage_win(tp, wp) 3889 tabpage_T *tp; 3890 win_T *wp; 3891 { 3892 goto_tabpage_tp(tp, TRUE); 3893 if (curtab == tp && win_valid(wp)) 3894 { 3895 win_enter(wp, TRUE); 3896 # ifdef FEAT_GUI_TABLINE 3897 if (gui_use_tabline()) 3898 gui_mch_set_curtab(tabpage_index(curtab)); 3899 # endif 3900 } 3901 } 3902 3903 /* 3904 * Move the current tab page to before tab page "nr". 3905 */ 3906 void 3907 tabpage_move(nr) 3908 int nr; 3909 { 3910 int n = nr; 3911 tabpage_T *tp; 3912 3913 if (first_tabpage->tp_next == NULL) 3914 return; 3915 3916 /* Remove the current tab page from the list of tab pages. */ 3917 if (curtab == first_tabpage) 3918 first_tabpage = curtab->tp_next; 3919 else 3920 { 3921 for (tp = first_tabpage; tp != NULL; tp = tp->tp_next) 3922 if (tp->tp_next == curtab) 3923 break; 3924 if (tp == NULL) /* "cannot happen" */ 3925 return; 3926 tp->tp_next = curtab->tp_next; 3927 } 3928 3929 /* Re-insert it at the specified position. */ 3930 if (n <= 0) 3931 { 3932 curtab->tp_next = first_tabpage; 3933 first_tabpage = curtab; 3934 } 3935 else 3936 { 3937 for (tp = first_tabpage; tp->tp_next != NULL && n > 1; tp = tp->tp_next) 3938 --n; 3939 curtab->tp_next = tp->tp_next; 3940 tp->tp_next = curtab; 3941 } 3942 3943 /* Need to redraw the tabline. Tab page contents doesn't change. */ 3944 redraw_tabline = TRUE; 3945 } 3946 3947 3948 /* 3949 * Go to another window. 3950 * When jumping to another buffer, stop Visual mode. Do this before 3951 * changing windows so we can yank the selection into the '*' register. 3952 * When jumping to another window on the same buffer, adjust its cursor 3953 * position to keep the same Visual area. 3954 */ 3955 void 3956 win_goto(wp) 3957 win_T *wp; 3958 { 3959 #ifdef FEAT_CONCEAL 3960 win_T *owp = curwin; 3961 #endif 3962 3963 if (text_locked()) 3964 { 3965 beep_flush(); 3966 text_locked_msg(); 3967 return; 3968 } 3969 #ifdef FEAT_AUTOCMD 3970 if (curbuf_locked()) 3971 return; 3972 #endif 3973 3974 #ifdef FEAT_VISUAL 3975 if (wp->w_buffer != curbuf) 3976 reset_VIsual_and_resel(); 3977 else if (VIsual_active) 3978 wp->w_cursor = curwin->w_cursor; 3979 #endif 3980 3981 #ifdef FEAT_GUI 3982 need_mouse_correct = TRUE; 3983 #endif 3984 win_enter(wp, TRUE); 3985 3986 #ifdef FEAT_CONCEAL 3987 /* Conceal cursor line in previous window, unconceal in current window. */ 3988 if (win_valid(owp)) 3989 update_single_line(owp, owp->w_cursor.lnum); 3990 update_single_line(curwin, curwin->w_cursor.lnum); 3991 #endif 3992 } 3993 3994 #if defined(FEAT_PERL) || defined(PROTO) 3995 /* 3996 * Find window number "winnr" (counting top to bottom). 3997 */ 3998 win_T * 3999 win_find_nr(winnr) 4000 int winnr; 4001 { 4002 win_T *wp; 4003 4004 # ifdef FEAT_WINDOWS 4005 for (wp = firstwin; wp != NULL; wp = wp->w_next) 4006 if (--winnr == 0) 4007 break; 4008 return wp; 4009 # else 4010 return curwin; 4011 # endif 4012 } 4013 #endif 4014 4015 #ifdef FEAT_VERTSPLIT 4016 /* 4017 * Move to window above or below "count" times. 4018 */ 4019 static void 4020 win_goto_ver(up, count) 4021 int up; /* TRUE to go to win above */ 4022 long count; 4023 { 4024 frame_T *fr; 4025 frame_T *nfr; 4026 frame_T *foundfr; 4027 4028 foundfr = curwin->w_frame; 4029 while (count--) 4030 { 4031 /* 4032 * First go upwards in the tree of frames until we find a upwards or 4033 * downwards neighbor. 4034 */ 4035 fr = foundfr; 4036 for (;;) 4037 { 4038 if (fr == topframe) 4039 goto end; 4040 if (up) 4041 nfr = fr->fr_prev; 4042 else 4043 nfr = fr->fr_next; 4044 if (fr->fr_parent->fr_layout == FR_COL && nfr != NULL) 4045 break; 4046 fr = fr->fr_parent; 4047 } 4048 4049 /* 4050 * Now go downwards to find the bottom or top frame in it. 4051 */ 4052 for (;;) 4053 { 4054 if (nfr->fr_layout == FR_LEAF) 4055 { 4056 foundfr = nfr; 4057 break; 4058 } 4059 fr = nfr->fr_child; 4060 if (nfr->fr_layout == FR_ROW) 4061 { 4062 /* Find the frame at the cursor row. */ 4063 while (fr->fr_next != NULL 4064 && frame2win(fr)->w_wincol + fr->fr_width 4065 <= curwin->w_wincol + curwin->w_wcol) 4066 fr = fr->fr_next; 4067 } 4068 if (nfr->fr_layout == FR_COL && up) 4069 while (fr->fr_next != NULL) 4070 fr = fr->fr_next; 4071 nfr = fr; 4072 } 4073 } 4074 end: 4075 if (foundfr != NULL) 4076 win_goto(foundfr->fr_win); 4077 } 4078 4079 /* 4080 * Move to left or right window. 4081 */ 4082 static void 4083 win_goto_hor(left, count) 4084 int left; /* TRUE to go to left win */ 4085 long count; 4086 { 4087 frame_T *fr; 4088 frame_T *nfr; 4089 frame_T *foundfr; 4090 4091 foundfr = curwin->w_frame; 4092 while (count--) 4093 { 4094 /* 4095 * First go upwards in the tree of frames until we find a left or 4096 * right neighbor. 4097 */ 4098 fr = foundfr; 4099 for (;;) 4100 { 4101 if (fr == topframe) 4102 goto end; 4103 if (left) 4104 nfr = fr->fr_prev; 4105 else 4106 nfr = fr->fr_next; 4107 if (fr->fr_parent->fr_layout == FR_ROW && nfr != NULL) 4108 break; 4109 fr = fr->fr_parent; 4110 } 4111 4112 /* 4113 * Now go downwards to find the leftmost or rightmost frame in it. 4114 */ 4115 for (;;) 4116 { 4117 if (nfr->fr_layout == FR_LEAF) 4118 { 4119 foundfr = nfr; 4120 break; 4121 } 4122 fr = nfr->fr_child; 4123 if (nfr->fr_layout == FR_COL) 4124 { 4125 /* Find the frame at the cursor row. */ 4126 while (fr->fr_next != NULL 4127 && frame2win(fr)->w_winrow + fr->fr_height 4128 <= curwin->w_winrow + curwin->w_wrow) 4129 fr = fr->fr_next; 4130 } 4131 if (nfr->fr_layout == FR_ROW && left) 4132 while (fr->fr_next != NULL) 4133 fr = fr->fr_next; 4134 nfr = fr; 4135 } 4136 } 4137 end: 4138 if (foundfr != NULL) 4139 win_goto(foundfr->fr_win); 4140 } 4141 #endif 4142 4143 /* 4144 * Make window "wp" the current window. 4145 */ 4146 void 4147 win_enter(wp, undo_sync) 4148 win_T *wp; 4149 int undo_sync; 4150 { 4151 win_enter_ext(wp, undo_sync, FALSE); 4152 } 4153 4154 /* 4155 * Make window wp the current window. 4156 * Can be called with "curwin_invalid" TRUE, which means that curwin has just 4157 * been closed and isn't valid. 4158 */ 4159 static void 4160 win_enter_ext(wp, undo_sync, curwin_invalid) 4161 win_T *wp; 4162 int undo_sync; 4163 int curwin_invalid; 4164 { 4165 #ifdef FEAT_AUTOCMD 4166 int other_buffer = FALSE; 4167 #endif 4168 4169 if (wp == curwin && !curwin_invalid) /* nothing to do */ 4170 return; 4171 4172 #ifdef FEAT_AUTOCMD 4173 if (!curwin_invalid) 4174 { 4175 /* 4176 * Be careful: If autocommands delete the window, return now. 4177 */ 4178 if (wp->w_buffer != curbuf) 4179 { 4180 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4181 other_buffer = TRUE; 4182 if (!win_valid(wp)) 4183 return; 4184 } 4185 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4186 if (!win_valid(wp)) 4187 return; 4188 # ifdef FEAT_EVAL 4189 /* autocmds may abort script processing */ 4190 if (aborting()) 4191 return; 4192 # endif 4193 } 4194 #endif 4195 4196 /* sync undo before leaving the current buffer */ 4197 if (undo_sync && curbuf != wp->w_buffer) 4198 u_sync(FALSE); 4199 /* may have to copy the buffer options when 'cpo' contains 'S' */ 4200 if (wp->w_buffer != curbuf) 4201 buf_copy_options(wp->w_buffer, BCO_ENTER | BCO_NOHELP); 4202 if (!curwin_invalid) 4203 { 4204 prevwin = curwin; /* remember for CTRL-W p */ 4205 curwin->w_redr_status = TRUE; 4206 } 4207 curwin = wp; 4208 curbuf = wp->w_buffer; 4209 check_cursor(); 4210 #ifdef FEAT_VIRTUALEDIT 4211 if (!virtual_active()) 4212 curwin->w_cursor.coladd = 0; 4213 #endif 4214 changed_line_abv_curs(); /* assume cursor position needs updating */ 4215 4216 if (curwin->w_localdir != NULL) 4217 { 4218 /* Window has a local directory: Save current directory as global 4219 * directory (unless that was done already) and change to the local 4220 * directory. */ 4221 if (globaldir == NULL) 4222 { 4223 char_u cwd[MAXPATHL]; 4224 4225 if (mch_dirname(cwd, MAXPATHL) == OK) 4226 globaldir = vim_strsave(cwd); 4227 } 4228 if (mch_chdir((char *)curwin->w_localdir) == 0) 4229 shorten_fnames(TRUE); 4230 } 4231 else if (globaldir != NULL) 4232 { 4233 /* Window doesn't have a local directory and we are not in the global 4234 * directory: Change to the global directory. */ 4235 ignored = mch_chdir((char *)globaldir); 4236 vim_free(globaldir); 4237 globaldir = NULL; 4238 shorten_fnames(TRUE); 4239 } 4240 4241 #ifdef FEAT_AUTOCMD 4242 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 4243 if (other_buffer) 4244 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4245 #endif 4246 4247 #ifdef FEAT_TITLE 4248 maketitle(); 4249 #endif 4250 curwin->w_redr_status = TRUE; 4251 redraw_tabline = TRUE; 4252 if (restart_edit) 4253 redraw_later(VALID); /* causes status line redraw */ 4254 4255 /* set window height to desired minimal value */ 4256 if (curwin->w_height < p_wh && !curwin->w_p_wfh) 4257 win_setheight((int)p_wh); 4258 else if (curwin->w_height == 0) 4259 win_setheight(1); 4260 4261 #ifdef FEAT_VERTSPLIT 4262 /* set window width to desired minimal value */ 4263 if (curwin->w_width < p_wiw && !curwin->w_p_wfw) 4264 win_setwidth((int)p_wiw); 4265 #endif 4266 4267 #ifdef FEAT_MOUSE 4268 setmouse(); /* in case jumped to/from help buffer */ 4269 #endif 4270 4271 /* Change directories when the 'acd' option is set. */ 4272 DO_AUTOCHDIR 4273 } 4274 4275 #endif /* FEAT_WINDOWS */ 4276 4277 #if defined(FEAT_WINDOWS) || defined(FEAT_SIGNS) || defined(PROTO) 4278 /* 4279 * Jump to the first open window that contains buffer "buf", if one exists. 4280 * Returns a pointer to the window found, otherwise NULL. 4281 */ 4282 win_T * 4283 buf_jump_open_win(buf) 4284 buf_T *buf; 4285 { 4286 # ifdef FEAT_WINDOWS 4287 win_T *wp; 4288 4289 for (wp = firstwin; wp != NULL; wp = wp->w_next) 4290 if (wp->w_buffer == buf) 4291 break; 4292 if (wp != NULL) 4293 win_enter(wp, FALSE); 4294 return wp; 4295 # else 4296 if (curwin->w_buffer == buf) 4297 return curwin; 4298 return NULL; 4299 # endif 4300 } 4301 4302 /* 4303 * Jump to the first open window in any tab page that contains buffer "buf", 4304 * if one exists. 4305 * Returns a pointer to the window found, otherwise NULL. 4306 */ 4307 win_T * 4308 buf_jump_open_tab(buf) 4309 buf_T *buf; 4310 { 4311 # ifdef FEAT_WINDOWS 4312 win_T *wp; 4313 tabpage_T *tp; 4314 4315 /* First try the current tab page. */ 4316 wp = buf_jump_open_win(buf); 4317 if (wp != NULL) 4318 return wp; 4319 4320 for (tp = first_tabpage; tp != NULL; tp = tp->tp_next) 4321 if (tp != curtab) 4322 { 4323 for (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next) 4324 if (wp->w_buffer == buf) 4325 break; 4326 if (wp != NULL) 4327 { 4328 goto_tabpage_win(tp, wp); 4329 if (curwin != wp) 4330 wp = NULL; /* something went wrong */ 4331 break; 4332 } 4333 } 4334 4335 return wp; 4336 # else 4337 if (curwin->w_buffer == buf) 4338 return curwin; 4339 return NULL; 4340 # endif 4341 } 4342 #endif 4343 4344 /* 4345 * Allocate a window structure and link it in the window list when "hidden" is 4346 * FALSE. 4347 */ 4348 static win_T * 4349 win_alloc(after, hidden) 4350 win_T *after UNUSED; 4351 int hidden UNUSED; 4352 { 4353 win_T *new_wp; 4354 4355 /* 4356 * allocate window structure and linesizes arrays 4357 */ 4358 new_wp = (win_T *)alloc_clear((unsigned)sizeof(win_T)); 4359 if (new_wp != NULL && win_alloc_lines(new_wp) == FAIL) 4360 { 4361 vim_free(new_wp); 4362 new_wp = NULL; 4363 } 4364 4365 if (new_wp != NULL) 4366 { 4367 #ifdef FEAT_AUTOCMD 4368 /* Don't execute autocommands while the window is not properly 4369 * initialized yet. gui_create_scrollbar() may trigger a FocusGained 4370 * event. */ 4371 block_autocmds(); 4372 #endif 4373 /* 4374 * link the window in the window list 4375 */ 4376 #ifdef FEAT_WINDOWS 4377 if (!hidden) 4378 win_append(after, new_wp); 4379 #endif 4380 #ifdef FEAT_VERTSPLIT 4381 new_wp->w_wincol = 0; 4382 new_wp->w_width = Columns; 4383 #endif 4384 4385 /* position the display and the cursor at the top of the file. */ 4386 new_wp->w_topline = 1; 4387 #ifdef FEAT_DIFF 4388 new_wp->w_topfill = 0; 4389 #endif 4390 new_wp->w_botline = 2; 4391 new_wp->w_cursor.lnum = 1; 4392 #ifdef FEAT_SCROLLBIND 4393 new_wp->w_scbind_pos = 1; 4394 #endif 4395 4396 /* We won't calculate w_fraction until resizing the window */ 4397 new_wp->w_fraction = 0; 4398 new_wp->w_prev_fraction_row = -1; 4399 4400 #ifdef FEAT_GUI 4401 if (gui.in_use) 4402 { 4403 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_LEFT], 4404 SBAR_LEFT, new_wp); 4405 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_RIGHT], 4406 SBAR_RIGHT, new_wp); 4407 } 4408 #endif 4409 #ifdef FEAT_EVAL 4410 /* init w: variables */ 4411 init_var_dict(&new_wp->w_vars, &new_wp->w_winvar, VAR_SCOPE); 4412 #endif 4413 #ifdef FEAT_FOLDING 4414 foldInitWin(new_wp); 4415 #endif 4416 #ifdef FEAT_AUTOCMD 4417 unblock_autocmds(); 4418 #endif 4419 #ifdef FEAT_SEARCH_EXTRA 4420 new_wp->w_match_head = NULL; 4421 new_wp->w_next_match_id = 4; 4422 #endif 4423 } 4424 return new_wp; 4425 } 4426 4427 #if defined(FEAT_WINDOWS) || defined(PROTO) 4428 4429 /* 4430 * remove window 'wp' from the window list and free the structure 4431 */ 4432 static void 4433 win_free(wp, tp) 4434 win_T *wp; 4435 tabpage_T *tp; /* tab page "win" is in, NULL for current */ 4436 { 4437 int i; 4438 4439 #ifdef FEAT_FOLDING 4440 clearFolding(wp); 4441 #endif 4442 4443 /* reduce the reference count to the argument list. */ 4444 alist_unlink(wp->w_alist); 4445 4446 #ifdef FEAT_AUTOCMD 4447 /* Don't execute autocommands while the window is halfway being deleted. 4448 * gui_mch_destroy_scrollbar() may trigger a FocusGained event. */ 4449 block_autocmds(); 4450 #endif 4451 4452 #ifdef FEAT_LUA 4453 lua_window_free(wp); 4454 #endif 4455 4456 #ifdef FEAT_MZSCHEME 4457 mzscheme_window_free(wp); 4458 #endif 4459 4460 #ifdef FEAT_PERL 4461 perl_win_free(wp); 4462 #endif 4463 4464 #ifdef FEAT_PYTHON 4465 python_window_free(wp); 4466 #endif 4467 4468 #ifdef FEAT_PYTHON3 4469 python3_window_free(wp); 4470 #endif 4471 4472 #ifdef FEAT_TCL 4473 tcl_window_free(wp); 4474 #endif 4475 4476 #ifdef FEAT_RUBY 4477 ruby_window_free(wp); 4478 #endif 4479 4480 clear_winopt(&wp->w_onebuf_opt); 4481 clear_winopt(&wp->w_allbuf_opt); 4482 4483 #ifdef FEAT_EVAL 4484 vars_clear(&wp->w_vars.dv_hashtab); /* free all w: variables */ 4485 #endif 4486 4487 if (prevwin == wp) 4488 prevwin = NULL; 4489 win_free_lsize(wp); 4490 4491 for (i = 0; i < wp->w_tagstacklen; ++i) 4492 vim_free(wp->w_tagstack[i].tagname); 4493 4494 vim_free(wp->w_localdir); 4495 4496 #ifdef FEAT_SEARCH_EXTRA 4497 clear_matches(wp); 4498 #endif 4499 4500 #ifdef FEAT_JUMPLIST 4501 free_jumplist(wp); 4502 #endif 4503 4504 #ifdef FEAT_QUICKFIX 4505 qf_free_all(wp); 4506 #endif 4507 4508 #ifdef FEAT_GUI 4509 if (gui.in_use) 4510 { 4511 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_LEFT]); 4512 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_RIGHT]); 4513 } 4514 #endif /* FEAT_GUI */ 4515 4516 #ifdef FEAT_SYN_HL 4517 vim_free(wp->w_p_cc_cols); 4518 #endif 4519 4520 #ifdef FEAT_AUTOCMD 4521 if (wp != aucmd_win) 4522 #endif 4523 win_remove(wp, tp); 4524 vim_free(wp); 4525 4526 #ifdef FEAT_AUTOCMD 4527 unblock_autocmds(); 4528 #endif 4529 } 4530 4531 /* 4532 * Append window "wp" in the window list after window "after". 4533 */ 4534 void 4535 win_append(after, wp) 4536 win_T *after, *wp; 4537 { 4538 win_T *before; 4539 4540 if (after == NULL) /* after NULL is in front of the first */ 4541 before = firstwin; 4542 else 4543 before = after->w_next; 4544 4545 wp->w_next = before; 4546 wp->w_prev = after; 4547 if (after == NULL) 4548 firstwin = wp; 4549 else 4550 after->w_next = wp; 4551 if (before == NULL) 4552 lastwin = wp; 4553 else 4554 before->w_prev = wp; 4555 } 4556 4557 /* 4558 * Remove a window from the window list. 4559 */ 4560 void 4561 win_remove(wp, tp) 4562 win_T *wp; 4563 tabpage_T *tp; /* tab page "win" is in, NULL for current */ 4564 { 4565 if (wp->w_prev != NULL) 4566 wp->w_prev->w_next = wp->w_next; 4567 else if (tp == NULL) 4568 firstwin = wp->w_next; 4569 else 4570 tp->tp_firstwin = wp->w_next; 4571 if (wp->w_next != NULL) 4572 wp->w_next->w_prev = wp->w_prev; 4573 else if (tp == NULL) 4574 lastwin = wp->w_prev; 4575 else 4576 tp->tp_lastwin = wp->w_prev; 4577 } 4578 4579 /* 4580 * Append frame "frp" in a frame list after frame "after". 4581 */ 4582 static void 4583 frame_append(after, frp) 4584 frame_T *after, *frp; 4585 { 4586 frp->fr_next = after->fr_next; 4587 after->fr_next = frp; 4588 if (frp->fr_next != NULL) 4589 frp->fr_next->fr_prev = frp; 4590 frp->fr_prev = after; 4591 } 4592 4593 /* 4594 * Insert frame "frp" in a frame list before frame "before". 4595 */ 4596 static void 4597 frame_insert(before, frp) 4598 frame_T *before, *frp; 4599 { 4600 frp->fr_next = before; 4601 frp->fr_prev = before->fr_prev; 4602 before->fr_prev = frp; 4603 if (frp->fr_prev != NULL) 4604 frp->fr_prev->fr_next = frp; 4605 else 4606 frp->fr_parent->fr_child = frp; 4607 } 4608 4609 /* 4610 * Remove a frame from a frame list. 4611 */ 4612 static void 4613 frame_remove(frp) 4614 frame_T *frp; 4615 { 4616 if (frp->fr_prev != NULL) 4617 frp->fr_prev->fr_next = frp->fr_next; 4618 else 4619 frp->fr_parent->fr_child = frp->fr_next; 4620 if (frp->fr_next != NULL) 4621 frp->fr_next->fr_prev = frp->fr_prev; 4622 } 4623 4624 #endif /* FEAT_WINDOWS */ 4625 4626 /* 4627 * Allocate w_lines[] for window "wp". 4628 * Return FAIL for failure, OK for success. 4629 */ 4630 int 4631 win_alloc_lines(wp) 4632 win_T *wp; 4633 { 4634 wp->w_lines_valid = 0; 4635 wp->w_lines = (wline_T *)alloc_clear((unsigned)(Rows * sizeof(wline_T))); 4636 if (wp->w_lines == NULL) 4637 return FAIL; 4638 return OK; 4639 } 4640 4641 /* 4642 * free lsize arrays for a window 4643 */ 4644 void 4645 win_free_lsize(wp) 4646 win_T *wp; 4647 { 4648 vim_free(wp->w_lines); 4649 wp->w_lines = NULL; 4650 } 4651 4652 /* 4653 * Called from win_new_shellsize() after Rows changed. 4654 * This only does the current tab page, others must be done when made active. 4655 */ 4656 void 4657 shell_new_rows() 4658 { 4659 int h = (int)ROWS_AVAIL; 4660 4661 if (firstwin == NULL) /* not initialized yet */ 4662 return; 4663 #ifdef FEAT_WINDOWS 4664 if (h < frame_minheight(topframe, NULL)) 4665 h = frame_minheight(topframe, NULL); 4666 4667 /* First try setting the heights of windows with 'winfixheight'. If 4668 * that doesn't result in the right height, forget about that option. */ 4669 frame_new_height(topframe, h, FALSE, TRUE); 4670 if (topframe->fr_height != h) 4671 frame_new_height(topframe, h, FALSE, FALSE); 4672 4673 (void)win_comp_pos(); /* recompute w_winrow and w_wincol */ 4674 #else 4675 if (h < 1) 4676 h = 1; 4677 win_new_height(firstwin, h); 4678 #endif 4679 compute_cmdrow(); 4680 #ifdef FEAT_WINDOWS 4681 curtab->tp_ch_used = p_ch; 4682 #endif 4683 4684 #if 0 4685 /* Disabled: don't want making the screen smaller make a window larger. */ 4686 if (p_ea) 4687 win_equal(curwin, FALSE, 'v'); 4688 #endif 4689 } 4690 4691 #if defined(FEAT_VERTSPLIT) || defined(PROTO) 4692 /* 4693 * Called from win_new_shellsize() after Columns changed. 4694 */ 4695 void 4696 shell_new_columns() 4697 { 4698 if (firstwin == NULL) /* not initialized yet */ 4699 return; 4700 4701 /* First try setting the widths of windows with 'winfixwidth'. If that 4702 * doesn't result in the right width, forget about that option. */ 4703 frame_new_width(topframe, (int)Columns, FALSE, TRUE); 4704 if (topframe->fr_width != Columns) 4705 frame_new_width(topframe, (int)Columns, FALSE, FALSE); 4706 4707 (void)win_comp_pos(); /* recompute w_winrow and w_wincol */ 4708 #if 0 4709 /* Disabled: don't want making the screen smaller make a window larger. */ 4710 if (p_ea) 4711 win_equal(curwin, FALSE, 'h'); 4712 #endif 4713 } 4714 #endif 4715 4716 #if defined(FEAT_CMDWIN) || defined(PROTO) 4717 /* 4718 * Save the size of all windows in "gap". 4719 */ 4720 void 4721 win_size_save(gap) 4722 garray_T *gap; 4723 4724 { 4725 win_T *wp; 4726 4727 ga_init2(gap, (int)sizeof(int), 1); 4728 if (ga_grow(gap, win_count() * 2) == OK) 4729 for (wp = firstwin; wp != NULL; wp = wp->w_next) 4730 { 4731 ((int *)gap->ga_data)[gap->ga_len++] = 4732 wp->w_width + wp->w_vsep_width; 4733 ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height; 4734 } 4735 } 4736 4737 /* 4738 * Restore window sizes, but only if the number of windows is still the same. 4739 * Does not free the growarray. 4740 */ 4741 void 4742 win_size_restore(gap) 4743 garray_T *gap; 4744 { 4745 win_T *wp; 4746 int i; 4747 4748 if (win_count() * 2 == gap->ga_len) 4749 { 4750 i = 0; 4751 for (wp = firstwin; wp != NULL; wp = wp->w_next) 4752 { 4753 frame_setwidth(wp->w_frame, ((int *)gap->ga_data)[i++]); 4754 win_setheight_win(((int *)gap->ga_data)[i++], wp); 4755 } 4756 /* recompute the window positions */ 4757 (void)win_comp_pos(); 4758 } 4759 } 4760 #endif /* FEAT_CMDWIN */ 4761 4762 #if defined(FEAT_WINDOWS) || defined(PROTO) 4763 /* 4764 * Update the position for all windows, using the width and height of the 4765 * frames. 4766 * Returns the row just after the last window. 4767 */ 4768 int 4769 win_comp_pos() 4770 { 4771 int row = tabline_height(); 4772 int col = 0; 4773 4774 frame_comp_pos(topframe, &row, &col); 4775 return row; 4776 } 4777 4778 /* 4779 * Update the position of the windows in frame "topfrp", using the width and 4780 * height of the frames. 4781 * "*row" and "*col" are the top-left position of the frame. They are updated 4782 * to the bottom-right position plus one. 4783 */ 4784 static void 4785 frame_comp_pos(topfrp, row, col) 4786 frame_T *topfrp; 4787 int *row; 4788 int *col; 4789 { 4790 win_T *wp; 4791 frame_T *frp; 4792 #ifdef FEAT_VERTSPLIT 4793 int startcol; 4794 int startrow; 4795 #endif 4796 4797 wp = topfrp->fr_win; 4798 if (wp != NULL) 4799 { 4800 if (wp->w_winrow != *row 4801 #ifdef FEAT_VERTSPLIT 4802 || wp->w_wincol != *col 4803 #endif 4804 ) 4805 { 4806 /* position changed, redraw */ 4807 wp->w_winrow = *row; 4808 #ifdef FEAT_VERTSPLIT 4809 wp->w_wincol = *col; 4810 #endif 4811 redraw_win_later(wp, NOT_VALID); 4812 wp->w_redr_status = TRUE; 4813 } 4814 *row += wp->w_height + wp->w_status_height; 4815 #ifdef FEAT_VERTSPLIT 4816 *col += wp->w_width + wp->w_vsep_width; 4817 #endif 4818 } 4819 else 4820 { 4821 #ifdef FEAT_VERTSPLIT 4822 startrow = *row; 4823 startcol = *col; 4824 #endif 4825 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 4826 { 4827 #ifdef FEAT_VERTSPLIT 4828 if (topfrp->fr_layout == FR_ROW) 4829 *row = startrow; /* all frames are at the same row */ 4830 else 4831 *col = startcol; /* all frames are at the same col */ 4832 #endif 4833 frame_comp_pos(frp, row, col); 4834 } 4835 } 4836 } 4837 4838 #endif /* FEAT_WINDOWS */ 4839 4840 /* 4841 * Set current window height and take care of repositioning other windows to 4842 * fit around it. 4843 */ 4844 void 4845 win_setheight(height) 4846 int height; 4847 { 4848 win_setheight_win(height, curwin); 4849 } 4850 4851 /* 4852 * Set the window height of window "win" and take care of repositioning other 4853 * windows to fit around it. 4854 */ 4855 void 4856 win_setheight_win(height, win) 4857 int height; 4858 win_T *win; 4859 { 4860 int row; 4861 4862 if (win == curwin) 4863 { 4864 /* Always keep current window at least one line high, even when 4865 * 'winminheight' is zero. */ 4866 #ifdef FEAT_WINDOWS 4867 if (height < p_wmh) 4868 height = p_wmh; 4869 #endif 4870 if (height == 0) 4871 height = 1; 4872 } 4873 4874 #ifdef FEAT_WINDOWS 4875 frame_setheight(win->w_frame, height + win->w_status_height); 4876 4877 /* recompute the window positions */ 4878 row = win_comp_pos(); 4879 #else 4880 if (height > topframe->fr_height) 4881 height = topframe->fr_height; 4882 win->w_height = height; 4883 row = height; 4884 #endif 4885 4886 /* 4887 * If there is extra space created between the last window and the command 4888 * line, clear it. 4889 */ 4890 if (full_screen && msg_scrolled == 0 && row < cmdline_row) 4891 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 4892 cmdline_row = row; 4893 msg_row = row; 4894 msg_col = 0; 4895 4896 redraw_all_later(NOT_VALID); 4897 } 4898 4899 #if defined(FEAT_WINDOWS) || defined(PROTO) 4900 4901 /* 4902 * Set the height of a frame to "height" and take care that all frames and 4903 * windows inside it are resized. Also resize frames on the left and right if 4904 * the are in the same FR_ROW frame. 4905 * 4906 * Strategy: 4907 * If the frame is part of a FR_COL frame, try fitting the frame in that 4908 * frame. If that doesn't work (the FR_COL frame is too small), recursively 4909 * go to containing frames to resize them and make room. 4910 * If the frame is part of a FR_ROW frame, all frames must be resized as well. 4911 * Check for the minimal height of the FR_ROW frame. 4912 * At the top level we can also use change the command line height. 4913 */ 4914 static void 4915 frame_setheight(curfrp, height) 4916 frame_T *curfrp; 4917 int height; 4918 { 4919 int room; /* total number of lines available */ 4920 int take; /* number of lines taken from other windows */ 4921 int room_cmdline; /* lines available from cmdline */ 4922 int run; 4923 frame_T *frp; 4924 int h; 4925 int room_reserved; 4926 4927 /* If the height already is the desired value, nothing to do. */ 4928 if (curfrp->fr_height == height) 4929 return; 4930 4931 if (curfrp->fr_parent == NULL) 4932 { 4933 /* topframe: can only change the command line */ 4934 if (height > ROWS_AVAIL) 4935 height = ROWS_AVAIL; 4936 if (height > 0) 4937 frame_new_height(curfrp, height, FALSE, FALSE); 4938 } 4939 else if (curfrp->fr_parent->fr_layout == FR_ROW) 4940 { 4941 /* Row of frames: Also need to resize frames left and right of this 4942 * one. First check for the minimal height of these. */ 4943 h = frame_minheight(curfrp->fr_parent, NULL); 4944 if (height < h) 4945 height = h; 4946 frame_setheight(curfrp->fr_parent, height); 4947 } 4948 else 4949 { 4950 /* 4951 * Column of frames: try to change only frames in this column. 4952 */ 4953 #ifdef FEAT_VERTSPLIT 4954 /* 4955 * Do this twice: 4956 * 1: compute room available, if it's not enough try resizing the 4957 * containing frame. 4958 * 2: compute the room available and adjust the height to it. 4959 * Try not to reduce the height of a window with 'winfixheight' set. 4960 */ 4961 for (run = 1; run <= 2; ++run) 4962 #else 4963 for (;;) 4964 #endif 4965 { 4966 room = 0; 4967 room_reserved = 0; 4968 for (frp = curfrp->fr_parent->fr_child; frp != NULL; 4969 frp = frp->fr_next) 4970 { 4971 if (frp != curfrp 4972 && frp->fr_win != NULL 4973 && frp->fr_win->w_p_wfh) 4974 room_reserved += frp->fr_height; 4975 room += frp->fr_height; 4976 if (frp != curfrp) 4977 room -= frame_minheight(frp, NULL); 4978 } 4979 #ifdef FEAT_VERTSPLIT 4980 if (curfrp->fr_width != Columns) 4981 room_cmdline = 0; 4982 else 4983 #endif 4984 { 4985 room_cmdline = Rows - p_ch - (lastwin->w_winrow 4986 + lastwin->w_height + lastwin->w_status_height); 4987 if (room_cmdline < 0) 4988 room_cmdline = 0; 4989 } 4990 4991 if (height <= room + room_cmdline) 4992 break; 4993 #ifdef FEAT_VERTSPLIT 4994 if (run == 2 || curfrp->fr_width == Columns) 4995 #endif 4996 { 4997 if (height > room + room_cmdline) 4998 height = room + room_cmdline; 4999 break; 5000 } 5001 #ifdef FEAT_VERTSPLIT 5002 frame_setheight(curfrp->fr_parent, height 5003 + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1); 5004 #endif 5005 /*NOTREACHED*/ 5006 } 5007 5008 /* 5009 * Compute the number of lines we will take from others frames (can be 5010 * negative!). 5011 */ 5012 take = height - curfrp->fr_height; 5013 5014 /* If there is not enough room, also reduce the height of a window 5015 * with 'winfixheight' set. */ 5016 if (height > room + room_cmdline - room_reserved) 5017 room_reserved = room + room_cmdline - height; 5018 /* If there is only a 'winfixheight' window and making the 5019 * window smaller, need to make the other window taller. */ 5020 if (take < 0 && room - curfrp->fr_height < room_reserved) 5021 room_reserved = 0; 5022 5023 if (take > 0 && room_cmdline > 0) 5024 { 5025 /* use lines from cmdline first */ 5026 if (take < room_cmdline) 5027 room_cmdline = take; 5028 take -= room_cmdline; 5029 topframe->fr_height += room_cmdline; 5030 } 5031 5032 /* 5033 * set the current frame to the new height 5034 */ 5035 frame_new_height(curfrp, height, FALSE, FALSE); 5036 5037 /* 5038 * First take lines from the frames after the current frame. If 5039 * that is not enough, takes lines from frames above the current 5040 * frame. 5041 */ 5042 for (run = 0; run < 2; ++run) 5043 { 5044 if (run == 0) 5045 frp = curfrp->fr_next; /* 1st run: start with next window */ 5046 else 5047 frp = curfrp->fr_prev; /* 2nd run: start with prev window */ 5048 while (frp != NULL && take != 0) 5049 { 5050 h = frame_minheight(frp, NULL); 5051 if (room_reserved > 0 5052 && frp->fr_win != NULL 5053 && frp->fr_win->w_p_wfh) 5054 { 5055 if (room_reserved >= frp->fr_height) 5056 room_reserved -= frp->fr_height; 5057 else 5058 { 5059 if (frp->fr_height - room_reserved > take) 5060 room_reserved = frp->fr_height - take; 5061 take -= frp->fr_height - room_reserved; 5062 frame_new_height(frp, room_reserved, FALSE, FALSE); 5063 room_reserved = 0; 5064 } 5065 } 5066 else 5067 { 5068 if (frp->fr_height - take < h) 5069 { 5070 take -= frp->fr_height - h; 5071 frame_new_height(frp, h, FALSE, FALSE); 5072 } 5073 else 5074 { 5075 frame_new_height(frp, frp->fr_height - take, 5076 FALSE, FALSE); 5077 take = 0; 5078 } 5079 } 5080 if (run == 0) 5081 frp = frp->fr_next; 5082 else 5083 frp = frp->fr_prev; 5084 } 5085 } 5086 } 5087 } 5088 5089 #if defined(FEAT_VERTSPLIT) || defined(PROTO) 5090 /* 5091 * Set current window width and take care of repositioning other windows to 5092 * fit around it. 5093 */ 5094 void 5095 win_setwidth(width) 5096 int width; 5097 { 5098 win_setwidth_win(width, curwin); 5099 } 5100 5101 void 5102 win_setwidth_win(width, wp) 5103 int width; 5104 win_T *wp; 5105 { 5106 /* Always keep current window at least one column wide, even when 5107 * 'winminwidth' is zero. */ 5108 if (wp == curwin) 5109 { 5110 if (width < p_wmw) 5111 width = p_wmw; 5112 if (width == 0) 5113 width = 1; 5114 } 5115 5116 frame_setwidth(wp->w_frame, width + wp->w_vsep_width); 5117 5118 /* recompute the window positions */ 5119 (void)win_comp_pos(); 5120 5121 redraw_all_later(NOT_VALID); 5122 } 5123 5124 /* 5125 * Set the width of a frame to "width" and take care that all frames and 5126 * windows inside it are resized. Also resize frames above and below if the 5127 * are in the same FR_ROW frame. 5128 * 5129 * Strategy is similar to frame_setheight(). 5130 */ 5131 static void 5132 frame_setwidth(curfrp, width) 5133 frame_T *curfrp; 5134 int width; 5135 { 5136 int room; /* total number of lines available */ 5137 int take; /* number of lines taken from other windows */ 5138 int run; 5139 frame_T *frp; 5140 int w; 5141 int room_reserved; 5142 5143 /* If the width already is the desired value, nothing to do. */ 5144 if (curfrp->fr_width == width) 5145 return; 5146 5147 if (curfrp->fr_parent == NULL) 5148 /* topframe: can't change width */ 5149 return; 5150 5151 if (curfrp->fr_parent->fr_layout == FR_COL) 5152 { 5153 /* Column of frames: Also need to resize frames above and below of 5154 * this one. First check for the minimal width of these. */ 5155 w = frame_minwidth(curfrp->fr_parent, NULL); 5156 if (width < w) 5157 width = w; 5158 frame_setwidth(curfrp->fr_parent, width); 5159 } 5160 else 5161 { 5162 /* 5163 * Row of frames: try to change only frames in this row. 5164 * 5165 * Do this twice: 5166 * 1: compute room available, if it's not enough try resizing the 5167 * containing frame. 5168 * 2: compute the room available and adjust the width to it. 5169 */ 5170 for (run = 1; run <= 2; ++run) 5171 { 5172 room = 0; 5173 room_reserved = 0; 5174 for (frp = curfrp->fr_parent->fr_child; frp != NULL; 5175 frp = frp->fr_next) 5176 { 5177 if (frp != curfrp 5178 && frp->fr_win != NULL 5179 && frp->fr_win->w_p_wfw) 5180 room_reserved += frp->fr_width; 5181 room += frp->fr_width; 5182 if (frp != curfrp) 5183 room -= frame_minwidth(frp, NULL); 5184 } 5185 5186 if (width <= room) 5187 break; 5188 if (run == 2 || curfrp->fr_height >= ROWS_AVAIL) 5189 { 5190 if (width > room) 5191 width = room; 5192 break; 5193 } 5194 frame_setwidth(curfrp->fr_parent, width 5195 + frame_minwidth(curfrp->fr_parent, NOWIN) - (int)p_wmw - 1); 5196 } 5197 5198 /* 5199 * Compute the number of lines we will take from others frames (can be 5200 * negative!). 5201 */ 5202 take = width - curfrp->fr_width; 5203 5204 /* If there is not enough room, also reduce the width of a window 5205 * with 'winfixwidth' set. */ 5206 if (width > room - room_reserved) 5207 room_reserved = room - width; 5208 /* If there is only a 'winfixwidth' window and making the 5209 * window smaller, need to make the other window narrower. */ 5210 if (take < 0 && room - curfrp->fr_width < room_reserved) 5211 room_reserved = 0; 5212 5213 /* 5214 * set the current frame to the new width 5215 */ 5216 frame_new_width(curfrp, width, FALSE, FALSE); 5217 5218 /* 5219 * First take lines from the frames right of the current frame. If 5220 * that is not enough, takes lines from frames left of the current 5221 * frame. 5222 */ 5223 for (run = 0; run < 2; ++run) 5224 { 5225 if (run == 0) 5226 frp = curfrp->fr_next; /* 1st run: start with next window */ 5227 else 5228 frp = curfrp->fr_prev; /* 2nd run: start with prev window */ 5229 while (frp != NULL && take != 0) 5230 { 5231 w = frame_minwidth(frp, NULL); 5232 if (room_reserved > 0 5233 && frp->fr_win != NULL 5234 && frp->fr_win->w_p_wfw) 5235 { 5236 if (room_reserved >= frp->fr_width) 5237 room_reserved -= frp->fr_width; 5238 else 5239 { 5240 if (frp->fr_width - room_reserved > take) 5241 room_reserved = frp->fr_width - take; 5242 take -= frp->fr_width - room_reserved; 5243 frame_new_width(frp, room_reserved, FALSE, FALSE); 5244 room_reserved = 0; 5245 } 5246 } 5247 else 5248 { 5249 if (frp->fr_width - take < w) 5250 { 5251 take -= frp->fr_width - w; 5252 frame_new_width(frp, w, FALSE, FALSE); 5253 } 5254 else 5255 { 5256 frame_new_width(frp, frp->fr_width - take, 5257 FALSE, FALSE); 5258 take = 0; 5259 } 5260 } 5261 if (run == 0) 5262 frp = frp->fr_next; 5263 else 5264 frp = frp->fr_prev; 5265 } 5266 } 5267 } 5268 } 5269 #endif /* FEAT_VERTSPLIT */ 5270 5271 /* 5272 * Check 'winminheight' for a valid value. 5273 */ 5274 void 5275 win_setminheight() 5276 { 5277 int room; 5278 int first = TRUE; 5279 win_T *wp; 5280 5281 /* loop until there is a 'winminheight' that is possible */ 5282 while (p_wmh > 0) 5283 { 5284 /* TODO: handle vertical splits */ 5285 room = -p_wh; 5286 for (wp = firstwin; wp != NULL; wp = wp->w_next) 5287 room += wp->w_height - p_wmh; 5288 if (room >= 0) 5289 break; 5290 --p_wmh; 5291 if (first) 5292 { 5293 EMSG(_(e_noroom)); 5294 first = FALSE; 5295 } 5296 } 5297 } 5298 5299 #ifdef FEAT_MOUSE 5300 5301 /* 5302 * Status line of dragwin is dragged "offset" lines down (negative is up). 5303 */ 5304 void 5305 win_drag_status_line(dragwin, offset) 5306 win_T *dragwin; 5307 int offset; 5308 { 5309 frame_T *curfr; 5310 frame_T *fr; 5311 int room; 5312 int row; 5313 int up; /* if TRUE, drag status line up, otherwise down */ 5314 int n; 5315 5316 fr = dragwin->w_frame; 5317 curfr = fr; 5318 if (fr != topframe) /* more than one window */ 5319 { 5320 fr = fr->fr_parent; 5321 /* When the parent frame is not a column of frames, its parent should 5322 * be. */ 5323 if (fr->fr_layout != FR_COL) 5324 { 5325 curfr = fr; 5326 if (fr != topframe) /* only a row of windows, may drag statusline */ 5327 fr = fr->fr_parent; 5328 } 5329 } 5330 5331 /* If this is the last frame in a column, may want to resize the parent 5332 * frame instead (go two up to skip a row of frames). */ 5333 while (curfr != topframe && curfr->fr_next == NULL) 5334 { 5335 if (fr != topframe) 5336 fr = fr->fr_parent; 5337 curfr = fr; 5338 if (fr != topframe) 5339 fr = fr->fr_parent; 5340 } 5341 5342 if (offset < 0) /* drag up */ 5343 { 5344 up = TRUE; 5345 offset = -offset; 5346 /* sum up the room of the current frame and above it */ 5347 if (fr == curfr) 5348 { 5349 /* only one window */ 5350 room = fr->fr_height - frame_minheight(fr, NULL); 5351 } 5352 else 5353 { 5354 room = 0; 5355 for (fr = fr->fr_child; ; fr = fr->fr_next) 5356 { 5357 room += fr->fr_height - frame_minheight(fr, NULL); 5358 if (fr == curfr) 5359 break; 5360 } 5361 } 5362 fr = curfr->fr_next; /* put fr at frame that grows */ 5363 } 5364 else /* drag down */ 5365 { 5366 up = FALSE; 5367 /* 5368 * Only dragging the last status line can reduce p_ch. 5369 */ 5370 room = Rows - cmdline_row; 5371 if (curfr->fr_next == NULL) 5372 room -= 1; 5373 else 5374 room -= p_ch; 5375 if (room < 0) 5376 room = 0; 5377 /* sum up the room of frames below of the current one */ 5378 for (fr = curfr->fr_next; fr != NULL; fr = fr->fr_next) 5379 room += fr->fr_height - frame_minheight(fr, NULL); 5380 fr = curfr; /* put fr at window that grows */ 5381 } 5382 5383 if (room < offset) /* Not enough room */ 5384 offset = room; /* Move as far as we can */ 5385 if (offset <= 0) 5386 return; 5387 5388 /* 5389 * Grow frame fr by "offset" lines. 5390 * Doesn't happen when dragging the last status line up. 5391 */ 5392 if (fr != NULL) 5393 frame_new_height(fr, fr->fr_height + offset, up, FALSE); 5394 5395 if (up) 5396 fr = curfr; /* current frame gets smaller */ 5397 else 5398 fr = curfr->fr_next; /* next frame gets smaller */ 5399 5400 /* 5401 * Now make the other frames smaller. 5402 */ 5403 while (fr != NULL && offset > 0) 5404 { 5405 n = frame_minheight(fr, NULL); 5406 if (fr->fr_height - offset <= n) 5407 { 5408 offset -= fr->fr_height - n; 5409 frame_new_height(fr, n, !up, FALSE); 5410 } 5411 else 5412 { 5413 frame_new_height(fr, fr->fr_height - offset, !up, FALSE); 5414 break; 5415 } 5416 if (up) 5417 fr = fr->fr_prev; 5418 else 5419 fr = fr->fr_next; 5420 } 5421 row = win_comp_pos(); 5422 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5423 cmdline_row = row; 5424 p_ch = Rows - cmdline_row; 5425 if (p_ch < 1) 5426 p_ch = 1; 5427 curtab->tp_ch_used = p_ch; 5428 redraw_all_later(SOME_VALID); 5429 showmode(); 5430 } 5431 5432 #ifdef FEAT_VERTSPLIT 5433 /* 5434 * Separator line of dragwin is dragged "offset" lines right (negative is left). 5435 */ 5436 void 5437 win_drag_vsep_line(dragwin, offset) 5438 win_T *dragwin; 5439 int offset; 5440 { 5441 frame_T *curfr; 5442 frame_T *fr; 5443 int room; 5444 int left; /* if TRUE, drag separator line left, otherwise right */ 5445 int n; 5446 5447 fr = dragwin->w_frame; 5448 if (fr == topframe) /* only one window (cannot happen?) */ 5449 return; 5450 curfr = fr; 5451 fr = fr->fr_parent; 5452 /* When the parent frame is not a row of frames, its parent should be. */ 5453 if (fr->fr_layout != FR_ROW) 5454 { 5455 if (fr == topframe) /* only a column of windows (cannot happen?) */ 5456 return; 5457 curfr = fr; 5458 fr = fr->fr_parent; 5459 } 5460 5461 /* If this is the last frame in a row, may want to resize a parent 5462 * frame instead. */ 5463 while (curfr->fr_next == NULL) 5464 { 5465 if (fr == topframe) 5466 break; 5467 curfr = fr; 5468 fr = fr->fr_parent; 5469 if (fr != topframe) 5470 { 5471 curfr = fr; 5472 fr = fr->fr_parent; 5473 } 5474 } 5475 5476 if (offset < 0) /* drag left */ 5477 { 5478 left = TRUE; 5479 offset = -offset; 5480 /* sum up the room of the current frame and left of it */ 5481 room = 0; 5482 for (fr = fr->fr_child; ; fr = fr->fr_next) 5483 { 5484 room += fr->fr_width - frame_minwidth(fr, NULL); 5485 if (fr == curfr) 5486 break; 5487 } 5488 fr = curfr->fr_next; /* put fr at frame that grows */ 5489 } 5490 else /* drag right */ 5491 { 5492 left = FALSE; 5493 /* sum up the room of frames right of the current one */ 5494 room = 0; 5495 for (fr = curfr->fr_next; fr != NULL; fr = fr->fr_next) 5496 room += fr->fr_width - frame_minwidth(fr, NULL); 5497 fr = curfr; /* put fr at window that grows */ 5498 } 5499 5500 if (room < offset) /* Not enough room */ 5501 offset = room; /* Move as far as we can */ 5502 if (offset <= 0) /* No room at all, quit. */ 5503 return; 5504 5505 /* grow frame fr by offset lines */ 5506 frame_new_width(fr, fr->fr_width + offset, left, FALSE); 5507 5508 /* shrink other frames: current and at the left or at the right */ 5509 if (left) 5510 fr = curfr; /* current frame gets smaller */ 5511 else 5512 fr = curfr->fr_next; /* next frame gets smaller */ 5513 5514 while (fr != NULL && offset > 0) 5515 { 5516 n = frame_minwidth(fr, NULL); 5517 if (fr->fr_width - offset <= n) 5518 { 5519 offset -= fr->fr_width - n; 5520 frame_new_width(fr, n, !left, FALSE); 5521 } 5522 else 5523 { 5524 frame_new_width(fr, fr->fr_width - offset, !left, FALSE); 5525 break; 5526 } 5527 if (left) 5528 fr = fr->fr_prev; 5529 else 5530 fr = fr->fr_next; 5531 } 5532 (void)win_comp_pos(); 5533 redraw_all_later(NOT_VALID); 5534 } 5535 #endif /* FEAT_VERTSPLIT */ 5536 #endif /* FEAT_MOUSE */ 5537 5538 #endif /* FEAT_WINDOWS */ 5539 5540 #define FRACTION_MULT 16384L 5541 5542 /* 5543 * Set wp->w_fraction for the current w_wrow and w_height. 5544 */ 5545 static void 5546 set_fraction(wp) 5547 win_T *wp; 5548 { 5549 wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT 5550 + FRACTION_MULT / 2) / (long)wp->w_height; 5551 } 5552 5553 /* 5554 * Set the height of a window. 5555 * This takes care of the things inside the window, not what happens to the 5556 * window position, the frame or to other windows. 5557 */ 5558 void 5559 win_new_height(wp, height) 5560 win_T *wp; 5561 int height; 5562 { 5563 linenr_T lnum; 5564 int sline, line_size; 5565 5566 /* Don't want a negative height. Happens when splitting a tiny window. 5567 * Will equalize heights soon to fix it. */ 5568 if (height < 0) 5569 height = 0; 5570 if (wp->w_height == height) 5571 return; /* nothing to do */ 5572 5573 if (wp->w_wrow != wp->w_prev_fraction_row && wp->w_height > 0) 5574 set_fraction(wp); 5575 5576 wp->w_height = height; 5577 wp->w_skipcol = 0; 5578 5579 /* Don't change w_topline when height is zero. Don't set w_topline when 5580 * 'scrollbind' is set and this isn't the current window. */ 5581 if (height > 0 5582 #ifdef FEAT_SCROLLBIND 5583 && (!wp->w_p_scb || wp == curwin) 5584 #endif 5585 ) 5586 { 5587 /* 5588 * Find a value for w_topline that shows the cursor at the same 5589 * relative position in the window as before (more or less). 5590 */ 5591 lnum = wp->w_cursor.lnum; 5592 if (lnum < 1) /* can happen when starting up */ 5593 lnum = 1; 5594 wp->w_wrow = ((long)wp->w_fraction * (long)height - 1L) / FRACTION_MULT; 5595 line_size = plines_win_col(wp, lnum, (long)(wp->w_cursor.col)) - 1; 5596 sline = wp->w_wrow - line_size; 5597 5598 if (sline >= 0) 5599 { 5600 /* Make sure the whole cursor line is visible, if possible. */ 5601 int rows = plines_win(wp, lnum, FALSE); 5602 5603 if (sline > wp->w_height - rows) 5604 { 5605 sline = wp->w_height - rows; 5606 wp->w_wrow -= rows - line_size; 5607 } 5608 } 5609 5610 if (sline < 0) 5611 { 5612 /* 5613 * Cursor line would go off top of screen if w_wrow was this high. 5614 * Make cursor line the first line in the window. If not enough 5615 * room use w_skipcol; 5616 */ 5617 wp->w_wrow = line_size; 5618 if (wp->w_wrow >= wp->w_height 5619 && (W_WIDTH(wp) - win_col_off(wp)) > 0) 5620 { 5621 wp->w_skipcol += W_WIDTH(wp) - win_col_off(wp); 5622 --wp->w_wrow; 5623 while (wp->w_wrow >= wp->w_height) 5624 { 5625 wp->w_skipcol += W_WIDTH(wp) - win_col_off(wp) 5626 + win_col_off2(wp); 5627 --wp->w_wrow; 5628 } 5629 } 5630 } 5631 else 5632 { 5633 while (sline > 0 && lnum > 1) 5634 { 5635 #ifdef FEAT_FOLDING 5636 hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); 5637 if (lnum == 1) 5638 { 5639 /* first line in buffer is folded */ 5640 line_size = 1; 5641 --sline; 5642 break; 5643 } 5644 #endif 5645 --lnum; 5646 #ifdef FEAT_DIFF 5647 if (lnum == wp->w_topline) 5648 line_size = plines_win_nofill(wp, lnum, TRUE) 5649 + wp->w_topfill; 5650 else 5651 #endif 5652 line_size = plines_win(wp, lnum, TRUE); 5653 sline -= line_size; 5654 } 5655 5656 if (sline < 0) 5657 { 5658 /* 5659 * Line we want at top would go off top of screen. Use next 5660 * line instead. 5661 */ 5662 #ifdef FEAT_FOLDING 5663 hasFoldingWin(wp, lnum, NULL, &lnum, TRUE, NULL); 5664 #endif 5665 lnum++; 5666 wp->w_wrow -= line_size + sline; 5667 } 5668 else if (sline > 0) 5669 { 5670 /* First line of file reached, use that as topline. */ 5671 lnum = 1; 5672 wp->w_wrow -= sline; 5673 } 5674 } 5675 set_topline(wp, lnum); 5676 } 5677 5678 if (wp == curwin) 5679 { 5680 if (p_so) 5681 update_topline(); 5682 curs_columns(FALSE); /* validate w_wrow */ 5683 } 5684 wp->w_prev_fraction_row = wp->w_wrow; 5685 5686 win_comp_scroll(wp); 5687 redraw_win_later(wp, SOME_VALID); 5688 #ifdef FEAT_WINDOWS 5689 wp->w_redr_status = TRUE; 5690 #endif 5691 invalidate_botline_win(wp); 5692 } 5693 5694 #ifdef FEAT_VERTSPLIT 5695 /* 5696 * Set the width of a window. 5697 */ 5698 void 5699 win_new_width(wp, width) 5700 win_T *wp; 5701 int width; 5702 { 5703 wp->w_width = width; 5704 wp->w_lines_valid = 0; 5705 changed_line_abv_curs_win(wp); 5706 invalidate_botline_win(wp); 5707 if (wp == curwin) 5708 { 5709 update_topline(); 5710 curs_columns(TRUE); /* validate w_wrow */ 5711 } 5712 redraw_win_later(wp, NOT_VALID); 5713 wp->w_redr_status = TRUE; 5714 } 5715 #endif 5716 5717 void 5718 win_comp_scroll(wp) 5719 win_T *wp; 5720 { 5721 wp->w_p_scr = ((unsigned)wp->w_height >> 1); 5722 if (wp->w_p_scr == 0) 5723 wp->w_p_scr = 1; 5724 } 5725 5726 /* 5727 * command_height: called whenever p_ch has been changed 5728 */ 5729 void 5730 command_height() 5731 { 5732 #ifdef FEAT_WINDOWS 5733 int h; 5734 frame_T *frp; 5735 int old_p_ch = curtab->tp_ch_used; 5736 5737 /* Use the value of p_ch that we remembered. This is needed for when the 5738 * GUI starts up, we can't be sure in what order things happen. And when 5739 * p_ch was changed in another tab page. */ 5740 curtab->tp_ch_used = p_ch; 5741 5742 /* Find bottom frame with width of screen. */ 5743 frp = lastwin->w_frame; 5744 # ifdef FEAT_VERTSPLIT 5745 while (frp->fr_width != Columns && frp->fr_parent != NULL) 5746 frp = frp->fr_parent; 5747 # endif 5748 5749 /* Avoid changing the height of a window with 'winfixheight' set. */ 5750 while (frp->fr_prev != NULL && frp->fr_layout == FR_LEAF 5751 && frp->fr_win->w_p_wfh) 5752 frp = frp->fr_prev; 5753 5754 if (starting != NO_SCREEN) 5755 { 5756 cmdline_row = Rows - p_ch; 5757 5758 if (p_ch > old_p_ch) /* p_ch got bigger */ 5759 { 5760 while (p_ch > old_p_ch) 5761 { 5762 if (frp == NULL) 5763 { 5764 EMSG(_(e_noroom)); 5765 p_ch = old_p_ch; 5766 curtab->tp_ch_used = p_ch; 5767 cmdline_row = Rows - p_ch; 5768 break; 5769 } 5770 h = frp->fr_height - frame_minheight(frp, NULL); 5771 if (h > p_ch - old_p_ch) 5772 h = p_ch - old_p_ch; 5773 old_p_ch += h; 5774 frame_add_height(frp, -h); 5775 frp = frp->fr_prev; 5776 } 5777 5778 /* Recompute window positions. */ 5779 (void)win_comp_pos(); 5780 5781 /* clear the lines added to cmdline */ 5782 if (full_screen) 5783 screen_fill((int)(cmdline_row), (int)Rows, 0, 5784 (int)Columns, ' ', ' ', 0); 5785 msg_row = cmdline_row; 5786 redraw_cmdline = TRUE; 5787 return; 5788 } 5789 5790 if (msg_row < cmdline_row) 5791 msg_row = cmdline_row; 5792 redraw_cmdline = TRUE; 5793 } 5794 frame_add_height(frp, (int)(old_p_ch - p_ch)); 5795 5796 /* Recompute window positions. */ 5797 if (frp != lastwin->w_frame) 5798 (void)win_comp_pos(); 5799 #else 5800 cmdline_row = Rows - p_ch; 5801 win_setheight(cmdline_row); 5802 #endif 5803 } 5804 5805 #if defined(FEAT_WINDOWS) || defined(PROTO) 5806 /* 5807 * Resize frame "frp" to be "n" lines higher (negative for less high). 5808 * Also resize the frames it is contained in. 5809 */ 5810 static void 5811 frame_add_height(frp, n) 5812 frame_T *frp; 5813 int n; 5814 { 5815 frame_new_height(frp, frp->fr_height + n, FALSE, FALSE); 5816 for (;;) 5817 { 5818 frp = frp->fr_parent; 5819 if (frp == NULL) 5820 break; 5821 frp->fr_height += n; 5822 } 5823 } 5824 5825 /* 5826 * Add or remove a status line for the bottom window(s), according to the 5827 * value of 'laststatus'. 5828 */ 5829 void 5830 last_status(morewin) 5831 int morewin; /* pretend there are two or more windows */ 5832 { 5833 /* Don't make a difference between horizontal or vertical split. */ 5834 last_status_rec(topframe, (p_ls == 2 5835 || (p_ls == 1 && (morewin || lastwin != firstwin)))); 5836 } 5837 5838 static void 5839 last_status_rec(fr, statusline) 5840 frame_T *fr; 5841 int statusline; 5842 { 5843 frame_T *fp; 5844 win_T *wp; 5845 5846 if (fr->fr_layout == FR_LEAF) 5847 { 5848 wp = fr->fr_win; 5849 if (wp->w_status_height != 0 && !statusline) 5850 { 5851 /* remove status line */ 5852 win_new_height(wp, wp->w_height + 1); 5853 wp->w_status_height = 0; 5854 comp_col(); 5855 } 5856 else if (wp->w_status_height == 0 && statusline) 5857 { 5858 /* Find a frame to take a line from. */ 5859 fp = fr; 5860 while (fp->fr_height <= frame_minheight(fp, NULL)) 5861 { 5862 if (fp == topframe) 5863 { 5864 EMSG(_(e_noroom)); 5865 return; 5866 } 5867 /* In a column of frames: go to frame above. If already at 5868 * the top or in a row of frames: go to parent. */ 5869 if (fp->fr_parent->fr_layout == FR_COL && fp->fr_prev != NULL) 5870 fp = fp->fr_prev; 5871 else 5872 fp = fp->fr_parent; 5873 } 5874 wp->w_status_height = 1; 5875 if (fp != fr) 5876 { 5877 frame_new_height(fp, fp->fr_height - 1, FALSE, FALSE); 5878 frame_fix_height(wp); 5879 (void)win_comp_pos(); 5880 } 5881 else 5882 win_new_height(wp, wp->w_height - 1); 5883 comp_col(); 5884 redraw_all_later(SOME_VALID); 5885 } 5886 } 5887 #ifdef FEAT_VERTSPLIT 5888 else if (fr->fr_layout == FR_ROW) 5889 { 5890 /* vertically split windows, set status line for each one */ 5891 for (fp = fr->fr_child; fp != NULL; fp = fp->fr_next) 5892 last_status_rec(fp, statusline); 5893 } 5894 #endif 5895 else 5896 { 5897 /* horizontally split window, set status line for last one */ 5898 for (fp = fr->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 5899 ; 5900 last_status_rec(fp, statusline); 5901 } 5902 } 5903 5904 /* 5905 * Return the number of lines used by the tab page line. 5906 */ 5907 int 5908 tabline_height() 5909 { 5910 #ifdef FEAT_GUI_TABLINE 5911 /* When the GUI has the tabline then this always returns zero. */ 5912 if (gui_use_tabline()) 5913 return 0; 5914 #endif 5915 switch (p_stal) 5916 { 5917 case 0: return 0; 5918 case 1: return (first_tabpage->tp_next == NULL) ? 0 : 1; 5919 } 5920 return 1; 5921 } 5922 5923 #endif /* FEAT_WINDOWS */ 5924 5925 #if defined(FEAT_SEARCHPATH) || defined(PROTO) 5926 /* 5927 * Get the file name at the cursor. 5928 * If Visual mode is active, use the selected text if it's in one line. 5929 * Returns the name in allocated memory, NULL for failure. 5930 */ 5931 char_u * 5932 grab_file_name(count, file_lnum) 5933 long count; 5934 linenr_T *file_lnum; 5935 { 5936 # ifdef FEAT_VISUAL 5937 if (VIsual_active) 5938 { 5939 int len; 5940 char_u *ptr; 5941 5942 if (get_visual_text(NULL, &ptr, &len) == FAIL) 5943 return NULL; 5944 return find_file_name_in_path(ptr, len, 5945 FNAME_MESS|FNAME_EXP|FNAME_REL, count, curbuf->b_ffname); 5946 } 5947 # endif 5948 return file_name_at_cursor(FNAME_MESS|FNAME_HYP|FNAME_EXP|FNAME_REL, count, 5949 file_lnum); 5950 5951 } 5952 5953 /* 5954 * Return the file name under or after the cursor. 5955 * 5956 * The 'path' option is searched if the file name is not absolute. 5957 * The string returned has been alloc'ed and should be freed by the caller. 5958 * NULL is returned if the file name or file is not found. 5959 * 5960 * options: 5961 * FNAME_MESS give error messages 5962 * FNAME_EXP expand to path 5963 * FNAME_HYP check for hypertext link 5964 * FNAME_INCL apply "includeexpr" 5965 */ 5966 char_u * 5967 file_name_at_cursor(options, count, file_lnum) 5968 int options; 5969 long count; 5970 linenr_T *file_lnum; 5971 { 5972 return file_name_in_line(ml_get_curline(), 5973 curwin->w_cursor.col, options, count, curbuf->b_ffname, 5974 file_lnum); 5975 } 5976 5977 /* 5978 * Return the name of the file under or after ptr[col]. 5979 * Otherwise like file_name_at_cursor(). 5980 */ 5981 char_u * 5982 file_name_in_line(line, col, options, count, rel_fname, file_lnum) 5983 char_u *line; 5984 int col; 5985 int options; 5986 long count; 5987 char_u *rel_fname; /* file we are searching relative to */ 5988 linenr_T *file_lnum; /* line number after the file name */ 5989 { 5990 char_u *ptr; 5991 int len; 5992 5993 /* 5994 * search forward for what could be the start of a file name 5995 */ 5996 ptr = line + col; 5997 while (*ptr != NUL && !vim_isfilec(*ptr)) 5998 mb_ptr_adv(ptr); 5999 if (*ptr == NUL) /* nothing found */ 6000 { 6001 if (options & FNAME_MESS) 6002 EMSG(_("E446: No file name under cursor")); 6003 return NULL; 6004 } 6005 6006 /* 6007 * Search backward for first char of the file name. 6008 * Go one char back to ":" before "//" even when ':' is not in 'isfname'. 6009 */ 6010 while (ptr > line) 6011 { 6012 #ifdef FEAT_MBYTE 6013 if (has_mbyte && (len = (*mb_head_off)(line, ptr - 1)) > 0) 6014 ptr -= len + 1; 6015 else 6016 #endif 6017 if (vim_isfilec(ptr[-1]) 6018 || ((options & FNAME_HYP) && path_is_url(ptr - 1))) 6019 --ptr; 6020 else 6021 break; 6022 } 6023 6024 /* 6025 * Search forward for the last char of the file name. 6026 * Also allow "://" when ':' is not in 'isfname'. 6027 */ 6028 len = 0; 6029 while (vim_isfilec(ptr[len]) 6030 || ((options & FNAME_HYP) && path_is_url(ptr + len))) 6031 #ifdef FEAT_MBYTE 6032 if (has_mbyte) 6033 len += (*mb_ptr2len)(ptr + len); 6034 else 6035 #endif 6036 ++len; 6037 6038 /* 6039 * If there is trailing punctuation, remove it. 6040 * But don't remove "..", could be a directory name. 6041 */ 6042 if (len > 2 && vim_strchr((char_u *)".,:;!", ptr[len - 1]) != NULL 6043 && ptr[len - 2] != '.') 6044 --len; 6045 6046 if (file_lnum != NULL) 6047 { 6048 char_u *p; 6049 6050 /* Get the number after the file name and a separator character */ 6051 p = ptr + len; 6052 p = skipwhite(p); 6053 if (*p != NUL) 6054 { 6055 if (!isdigit(*p)) 6056 ++p; /* skip the separator */ 6057 p = skipwhite(p); 6058 if (isdigit(*p)) 6059 *file_lnum = (int)getdigits(&p); 6060 } 6061 } 6062 6063 return find_file_name_in_path(ptr, len, options, count, rel_fname); 6064 } 6065 6066 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6067 static char_u *eval_includeexpr __ARGS((char_u *ptr, int len)); 6068 6069 static char_u * 6070 eval_includeexpr(ptr, len) 6071 char_u *ptr; 6072 int len; 6073 { 6074 char_u *res; 6075 6076 set_vim_var_string(VV_FNAME, ptr, len); 6077 res = eval_to_string_safe(curbuf->b_p_inex, NULL, 6078 was_set_insecurely((char_u *)"includeexpr", OPT_LOCAL)); 6079 set_vim_var_string(VV_FNAME, NULL, 0); 6080 return res; 6081 } 6082 #endif 6083 6084 /* 6085 * Return the name of the file ptr[len] in 'path'. 6086 * Otherwise like file_name_at_cursor(). 6087 */ 6088 char_u * 6089 find_file_name_in_path(ptr, len, options, count, rel_fname) 6090 char_u *ptr; 6091 int len; 6092 int options; 6093 long count; 6094 char_u *rel_fname; /* file we are searching relative to */ 6095 { 6096 char_u *file_name; 6097 int c; 6098 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6099 char_u *tofree = NULL; 6100 6101 if ((options & FNAME_INCL) && *curbuf->b_p_inex != NUL) 6102 { 6103 tofree = eval_includeexpr(ptr, len); 6104 if (tofree != NULL) 6105 { 6106 ptr = tofree; 6107 len = (int)STRLEN(ptr); 6108 } 6109 } 6110 # endif 6111 6112 if (options & FNAME_EXP) 6113 { 6114 file_name = find_file_in_path(ptr, len, options & ~FNAME_MESS, 6115 TRUE, rel_fname); 6116 6117 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6118 /* 6119 * If the file could not be found in a normal way, try applying 6120 * 'includeexpr' (unless done already). 6121 */ 6122 if (file_name == NULL 6123 && !(options & FNAME_INCL) && *curbuf->b_p_inex != NUL) 6124 { 6125 tofree = eval_includeexpr(ptr, len); 6126 if (tofree != NULL) 6127 { 6128 ptr = tofree; 6129 len = (int)STRLEN(ptr); 6130 file_name = find_file_in_path(ptr, len, options & ~FNAME_MESS, 6131 TRUE, rel_fname); 6132 } 6133 } 6134 # endif 6135 if (file_name == NULL && (options & FNAME_MESS)) 6136 { 6137 c = ptr[len]; 6138 ptr[len] = NUL; 6139 EMSG2(_("E447: Can't find file \"%s\" in path"), ptr); 6140 ptr[len] = c; 6141 } 6142 6143 /* Repeat finding the file "count" times. This matters when it 6144 * appears several times in the path. */ 6145 while (file_name != NULL && --count > 0) 6146 { 6147 vim_free(file_name); 6148 file_name = find_file_in_path(ptr, len, options, FALSE, rel_fname); 6149 } 6150 } 6151 else 6152 file_name = vim_strnsave(ptr, len); 6153 6154 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6155 vim_free(tofree); 6156 # endif 6157 6158 return file_name; 6159 } 6160 #endif /* FEAT_SEARCHPATH */ 6161 6162 /* 6163 * Check if the "://" of a URL is at the pointer, return URL_SLASH. 6164 * Also check for ":\\", which MS Internet Explorer accepts, return 6165 * URL_BACKSLASH. 6166 */ 6167 static int 6168 path_is_url(p) 6169 char_u *p; 6170 { 6171 if (STRNCMP(p, "://", (size_t)3) == 0) 6172 return URL_SLASH; 6173 else if (STRNCMP(p, ":\\\\", (size_t)3) == 0) 6174 return URL_BACKSLASH; 6175 return 0; 6176 } 6177 6178 /* 6179 * Check if "fname" starts with "name://". Return URL_SLASH if it does. 6180 * Return URL_BACKSLASH for "name:\\". 6181 * Return zero otherwise. 6182 */ 6183 int 6184 path_with_url(fname) 6185 char_u *fname; 6186 { 6187 char_u *p; 6188 6189 for (p = fname; isalpha(*p); ++p) 6190 ; 6191 return path_is_url(p); 6192 } 6193 6194 /* 6195 * Return TRUE if "name" is a full (absolute) path name or URL. 6196 */ 6197 int 6198 vim_isAbsName(name) 6199 char_u *name; 6200 { 6201 return (path_with_url(name) != 0 || mch_isFullName(name)); 6202 } 6203 6204 /* 6205 * Get absolute file name into buffer "buf[len]". 6206 * 6207 * return FAIL for failure, OK otherwise 6208 */ 6209 int 6210 vim_FullName(fname, buf, len, force) 6211 char_u *fname, *buf; 6212 int len; 6213 int force; /* force expansion even when already absolute */ 6214 { 6215 int retval = OK; 6216 int url; 6217 6218 *buf = NUL; 6219 if (fname == NULL) 6220 return FAIL; 6221 6222 url = path_with_url(fname); 6223 if (!url) 6224 retval = mch_FullName(fname, buf, len, force); 6225 if (url || retval == FAIL) 6226 { 6227 /* something failed; use the file name (truncate when too long) */ 6228 vim_strncpy(buf, fname, len - 1); 6229 } 6230 #if defined(MACOS_CLASSIC) || defined(OS2) || defined(MSDOS) || defined(MSWIN) 6231 slash_adjust(buf); 6232 #endif 6233 return retval; 6234 } 6235 6236 /* 6237 * Return the minimal number of rows that is needed on the screen to display 6238 * the current number of windows. 6239 */ 6240 int 6241 min_rows() 6242 { 6243 int total; 6244 #ifdef FEAT_WINDOWS 6245 tabpage_T *tp; 6246 int n; 6247 #endif 6248 6249 if (firstwin == NULL) /* not initialized yet */ 6250 return MIN_LINES; 6251 6252 #ifdef FEAT_WINDOWS 6253 total = 0; 6254 for (tp = first_tabpage; tp != NULL; tp = tp->tp_next) 6255 { 6256 n = frame_minheight(tp->tp_topframe, NULL); 6257 if (total < n) 6258 total = n; 6259 } 6260 total += tabline_height(); 6261 #else 6262 total = 1; /* at least one window should have a line! */ 6263 #endif 6264 total += 1; /* count the room for the command line */ 6265 return total; 6266 } 6267 6268 /* 6269 * Return TRUE if there is only one window (in the current tab page), not 6270 * counting a help or preview window, unless it is the current window. 6271 * Does not count "aucmd_win". 6272 */ 6273 int 6274 only_one_window() 6275 { 6276 #ifdef FEAT_WINDOWS 6277 int count = 0; 6278 win_T *wp; 6279 6280 /* If there is another tab page there always is another window. */ 6281 if (first_tabpage->tp_next != NULL) 6282 return FALSE; 6283 6284 for (wp = firstwin; wp != NULL; wp = wp->w_next) 6285 if ((!((wp->w_buffer->b_help && !curbuf->b_help) 6286 # ifdef FEAT_QUICKFIX 6287 || wp->w_p_pvw 6288 # endif 6289 ) || wp == curwin) 6290 # ifdef FEAT_AUTOCMD 6291 && wp != aucmd_win 6292 # endif 6293 ) 6294 ++count; 6295 return (count <= 1); 6296 #else 6297 return TRUE; 6298 #endif 6299 } 6300 6301 #if defined(FEAT_WINDOWS) || defined(FEAT_AUTOCMD) || defined(PROTO) 6302 /* 6303 * Correct the cursor line number in other windows. Used after changing the 6304 * current buffer, and before applying autocommands. 6305 * When "do_curwin" is TRUE, also check current window. 6306 */ 6307 void 6308 check_lnums(do_curwin) 6309 int do_curwin; 6310 { 6311 win_T *wp; 6312 6313 #ifdef FEAT_WINDOWS 6314 tabpage_T *tp; 6315 6316 FOR_ALL_TAB_WINDOWS(tp, wp) 6317 if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) 6318 #else 6319 wp = curwin; 6320 if (do_curwin) 6321 #endif 6322 { 6323 if (wp->w_cursor.lnum > curbuf->b_ml.ml_line_count) 6324 wp->w_cursor.lnum = curbuf->b_ml.ml_line_count; 6325 if (wp->w_topline > curbuf->b_ml.ml_line_count) 6326 wp->w_topline = curbuf->b_ml.ml_line_count; 6327 } 6328 } 6329 #endif 6330 6331 #if defined(FEAT_WINDOWS) || defined(PROTO) 6332 6333 /* 6334 * A snapshot of the window sizes, to restore them after closing the help 6335 * window. 6336 * Only these fields are used: 6337 * fr_layout 6338 * fr_width 6339 * fr_height 6340 * fr_next 6341 * fr_child 6342 * fr_win (only valid for the old curwin, NULL otherwise) 6343 */ 6344 6345 /* 6346 * Create a snapshot of the current frame sizes. 6347 */ 6348 void 6349 make_snapshot(idx) 6350 int idx; 6351 { 6352 clear_snapshot(curtab, idx); 6353 make_snapshot_rec(topframe, &curtab->tp_snapshot[idx]); 6354 } 6355 6356 static void 6357 make_snapshot_rec(fr, frp) 6358 frame_T *fr; 6359 frame_T **frp; 6360 { 6361 *frp = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); 6362 if (*frp == NULL) 6363 return; 6364 (*frp)->fr_layout = fr->fr_layout; 6365 # ifdef FEAT_VERTSPLIT 6366 (*frp)->fr_width = fr->fr_width; 6367 # endif 6368 (*frp)->fr_height = fr->fr_height; 6369 if (fr->fr_next != NULL) 6370 make_snapshot_rec(fr->fr_next, &((*frp)->fr_next)); 6371 if (fr->fr_child != NULL) 6372 make_snapshot_rec(fr->fr_child, &((*frp)->fr_child)); 6373 if (fr->fr_layout == FR_LEAF && fr->fr_win == curwin) 6374 (*frp)->fr_win = curwin; 6375 } 6376 6377 /* 6378 * Remove any existing snapshot. 6379 */ 6380 static void 6381 clear_snapshot(tp, idx) 6382 tabpage_T *tp; 6383 int idx; 6384 { 6385 clear_snapshot_rec(tp->tp_snapshot[idx]); 6386 tp->tp_snapshot[idx] = NULL; 6387 } 6388 6389 static void 6390 clear_snapshot_rec(fr) 6391 frame_T *fr; 6392 { 6393 if (fr != NULL) 6394 { 6395 clear_snapshot_rec(fr->fr_next); 6396 clear_snapshot_rec(fr->fr_child); 6397 vim_free(fr); 6398 } 6399 } 6400 6401 /* 6402 * Restore a previously created snapshot, if there is any. 6403 * This is only done if the screen size didn't change and the window layout is 6404 * still the same. 6405 */ 6406 void 6407 restore_snapshot(idx, close_curwin) 6408 int idx; 6409 int close_curwin; /* closing current window */ 6410 { 6411 win_T *wp; 6412 6413 if (curtab->tp_snapshot[idx] != NULL 6414 # ifdef FEAT_VERTSPLIT 6415 && curtab->tp_snapshot[idx]->fr_width == topframe->fr_width 6416 # endif 6417 && curtab->tp_snapshot[idx]->fr_height == topframe->fr_height 6418 && check_snapshot_rec(curtab->tp_snapshot[idx], topframe) == OK) 6419 { 6420 wp = restore_snapshot_rec(curtab->tp_snapshot[idx], topframe); 6421 win_comp_pos(); 6422 if (wp != NULL && close_curwin) 6423 win_goto(wp); 6424 redraw_all_later(CLEAR); 6425 } 6426 clear_snapshot(curtab, idx); 6427 } 6428 6429 /* 6430 * Check if frames "sn" and "fr" have the same layout, same following frames 6431 * and same children. 6432 */ 6433 static int 6434 check_snapshot_rec(sn, fr) 6435 frame_T *sn; 6436 frame_T *fr; 6437 { 6438 if (sn->fr_layout != fr->fr_layout 6439 || (sn->fr_next == NULL) != (fr->fr_next == NULL) 6440 || (sn->fr_child == NULL) != (fr->fr_child == NULL) 6441 || (sn->fr_next != NULL 6442 && check_snapshot_rec(sn->fr_next, fr->fr_next) == FAIL) 6443 || (sn->fr_child != NULL 6444 && check_snapshot_rec(sn->fr_child, fr->fr_child) == FAIL)) 6445 return FAIL; 6446 return OK; 6447 } 6448 6449 /* 6450 * Copy the size of snapshot frame "sn" to frame "fr". Do the same for all 6451 * following frames and children. 6452 * Returns a pointer to the old current window, or NULL. 6453 */ 6454 static win_T * 6455 restore_snapshot_rec(sn, fr) 6456 frame_T *sn; 6457 frame_T *fr; 6458 { 6459 win_T *wp = NULL; 6460 win_T *wp2; 6461 6462 fr->fr_height = sn->fr_height; 6463 # ifdef FEAT_VERTSPLIT 6464 fr->fr_width = sn->fr_width; 6465 # endif 6466 if (fr->fr_layout == FR_LEAF) 6467 { 6468 frame_new_height(fr, fr->fr_height, FALSE, FALSE); 6469 # ifdef FEAT_VERTSPLIT 6470 frame_new_width(fr, fr->fr_width, FALSE, FALSE); 6471 # endif 6472 wp = sn->fr_win; 6473 } 6474 if (sn->fr_next != NULL) 6475 { 6476 wp2 = restore_snapshot_rec(sn->fr_next, fr->fr_next); 6477 if (wp2 != NULL) 6478 wp = wp2; 6479 } 6480 if (sn->fr_child != NULL) 6481 { 6482 wp2 = restore_snapshot_rec(sn->fr_child, fr->fr_child); 6483 if (wp2 != NULL) 6484 wp = wp2; 6485 } 6486 return wp; 6487 } 6488 6489 #endif 6490 6491 #if (defined(FEAT_GUI) && defined(FEAT_VERTSPLIT)) || defined(PROTO) 6492 /* 6493 * Return TRUE if there is any vertically split window. 6494 */ 6495 int 6496 win_hasvertsplit() 6497 { 6498 frame_T *fr; 6499 6500 if (topframe->fr_layout == FR_ROW) 6501 return TRUE; 6502 6503 if (topframe->fr_layout == FR_COL) 6504 for (fr = topframe->fr_child; fr != NULL; fr = fr->fr_next) 6505 if (fr->fr_layout == FR_ROW) 6506 return TRUE; 6507 6508 return FALSE; 6509 } 6510 #endif 6511 6512 #if defined(FEAT_SEARCH_EXTRA) || defined(PROTO) 6513 /* 6514 * Add match to the match list of window 'wp'. The pattern 'pat' will be 6515 * highlighted with the group 'grp' with priority 'prio'. 6516 * Optionally, a desired ID 'id' can be specified (greater than or equal to 1). 6517 * If no particular ID is desired, -1 must be specified for 'id'. 6518 * Return ID of added match, -1 on failure. 6519 */ 6520 int 6521 match_add(wp, grp, pat, prio, id) 6522 win_T *wp; 6523 char_u *grp; 6524 char_u *pat; 6525 int prio; 6526 int id; 6527 { 6528 matchitem_T *cur; 6529 matchitem_T *prev; 6530 matchitem_T *m; 6531 int hlg_id; 6532 regprog_T *regprog; 6533 6534 if (*grp == NUL || *pat == NUL) 6535 return -1; 6536 if (id < -1 || id == 0) 6537 { 6538 EMSGN("E799: Invalid ID: %ld (must be greater than or equal to 1)", id); 6539 return -1; 6540 } 6541 if (id != -1) 6542 { 6543 cur = wp->w_match_head; 6544 while (cur != NULL) 6545 { 6546 if (cur->id == id) 6547 { 6548 EMSGN("E801: ID already taken: %ld", id); 6549 return -1; 6550 } 6551 cur = cur->next; 6552 } 6553 } 6554 if ((hlg_id = syn_namen2id(grp, (int)STRLEN(grp))) == 0) 6555 { 6556 EMSG2(_(e_nogroup), grp); 6557 return -1; 6558 } 6559 if ((regprog = vim_regcomp(pat, RE_MAGIC)) == NULL) 6560 { 6561 EMSG2(_(e_invarg2), pat); 6562 return -1; 6563 } 6564 6565 /* Find available match ID. */ 6566 while (id == -1) 6567 { 6568 cur = wp->w_match_head; 6569 while (cur != NULL && cur->id != wp->w_next_match_id) 6570 cur = cur->next; 6571 if (cur == NULL) 6572 id = wp->w_next_match_id; 6573 wp->w_next_match_id++; 6574 } 6575 6576 /* Build new match. */ 6577 m = (matchitem_T *)alloc(sizeof(matchitem_T)); 6578 m->id = id; 6579 m->priority = prio; 6580 m->pattern = vim_strsave(pat); 6581 m->hlg_id = hlg_id; 6582 m->match.regprog = regprog; 6583 m->match.rmm_ic = FALSE; 6584 m->match.rmm_maxcol = 0; 6585 6586 /* Insert new match. The match list is in ascending order with regard to 6587 * the match priorities. */ 6588 cur = wp->w_match_head; 6589 prev = cur; 6590 while (cur != NULL && prio >= cur->priority) 6591 { 6592 prev = cur; 6593 cur = cur->next; 6594 } 6595 if (cur == prev) 6596 wp->w_match_head = m; 6597 else 6598 prev->next = m; 6599 m->next = cur; 6600 6601 redraw_later(SOME_VALID); 6602 return id; 6603 } 6604 6605 /* 6606 * Delete match with ID 'id' in the match list of window 'wp'. 6607 * Print error messages if 'perr' is TRUE. 6608 */ 6609 int 6610 match_delete(wp, id, perr) 6611 win_T *wp; 6612 int id; 6613 int perr; 6614 { 6615 matchitem_T *cur = wp->w_match_head; 6616 matchitem_T *prev = cur; 6617 6618 if (id < 1) 6619 { 6620 if (perr == TRUE) 6621 EMSGN("E802: Invalid ID: %ld (must be greater than or equal to 1)", 6622 id); 6623 return -1; 6624 } 6625 while (cur != NULL && cur->id != id) 6626 { 6627 prev = cur; 6628 cur = cur->next; 6629 } 6630 if (cur == NULL) 6631 { 6632 if (perr == TRUE) 6633 EMSGN("E803: ID not found: %ld", id); 6634 return -1; 6635 } 6636 if (cur == prev) 6637 wp->w_match_head = cur->next; 6638 else 6639 prev->next = cur->next; 6640 vim_free(cur->match.regprog); 6641 vim_free(cur->pattern); 6642 vim_free(cur); 6643 redraw_later(SOME_VALID); 6644 return 0; 6645 } 6646 6647 /* 6648 * Delete all matches in the match list of window 'wp'. 6649 */ 6650 void 6651 clear_matches(wp) 6652 win_T *wp; 6653 { 6654 matchitem_T *m; 6655 6656 while (wp->w_match_head != NULL) 6657 { 6658 m = wp->w_match_head->next; 6659 vim_free(wp->w_match_head->match.regprog); 6660 vim_free(wp->w_match_head->pattern); 6661 vim_free(wp->w_match_head); 6662 wp->w_match_head = m; 6663 } 6664 redraw_later(SOME_VALID); 6665 } 6666 6667 /* 6668 * Get match from ID 'id' in window 'wp'. 6669 * Return NULL if match not found. 6670 */ 6671 matchitem_T * 6672 get_match(wp, id) 6673 win_T *wp; 6674 int id; 6675 { 6676 matchitem_T *cur = wp->w_match_head; 6677 6678 while (cur != NULL && cur->id != id) 6679 cur = cur->next; 6680 return cur; 6681 } 6682 #endif 6683