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