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