1 /* vi:set ts=8 sts=4 sw=4 noet: 2 * 3 * VIM - Vi IMproved by Bram Moolenaar 4 * 5 * Do ":help uganda" in Vim to read a list of people who contributed. 6 * Do ":help credits" in Vim to see a list of people who contributed. 7 * See README.txt for an overview of the Vim source code. 8 */ 9 10 #include "vim.h" 11 12 static void cmd_with_count(char *cmd, char_u *bufp, size_t bufsize, long Prenum); 13 static void win_init(win_T *newp, win_T *oldp, int flags); 14 static void win_init_some(win_T *newp, win_T *oldp); 15 static void frame_comp_pos(frame_T *topfrp, int *row, int *col); 16 static void frame_setheight(frame_T *curfrp, int height); 17 static void frame_setwidth(frame_T *curfrp, int width); 18 static void win_exchange(long); 19 static void win_rotate(int, int); 20 static void win_totop(int size, int flags); 21 static void win_equal_rec(win_T *next_curwin, int current, frame_T *topfr, int dir, int col, int row, int width, int height); 22 static win_T *win_free_mem(win_T *win, int *dirp, tabpage_T *tp); 23 static frame_T *win_altframe(win_T *win, tabpage_T *tp); 24 static tabpage_T *alt_tabpage(void); 25 static win_T *frame2win(frame_T *frp); 26 static int frame_has_win(frame_T *frp, win_T *wp); 27 static void frame_new_height(frame_T *topfrp, int height, int topfirst, int wfh); 28 static int frame_fixed_height(frame_T *frp); 29 static int frame_fixed_width(frame_T *frp); 30 static void frame_add_statusline(frame_T *frp); 31 static void frame_new_width(frame_T *topfrp, int width, int leftfirst, int wfw); 32 static void frame_add_vsep(frame_T *frp); 33 static int frame_minwidth(frame_T *topfrp, win_T *next_curwin); 34 static void frame_fix_width(win_T *wp); 35 static int win_alloc_firstwin(win_T *oldwin); 36 static void new_frame(win_T *wp); 37 static tabpage_T *alloc_tabpage(void); 38 static int leave_tabpage(buf_T *new_curbuf, int trigger_leave_autocmds); 39 static void enter_tabpage(tabpage_T *tp, buf_T *old_curbuf, int trigger_enter_autocmds, int trigger_leave_autocmds); 40 static void frame_fix_height(win_T *wp); 41 static int frame_minheight(frame_T *topfrp, win_T *next_curwin); 42 static int may_open_tabpage(void); 43 static void win_enter_ext(win_T *wp, int undo_sync, int no_curwin, int trigger_new_autocmds, int trigger_enter_autocmds, int trigger_leave_autocmds); 44 static void win_free(win_T *wp, tabpage_T *tp); 45 static int win_unlisted(win_T *wp); 46 static void win_append(win_T *after, win_T *wp); 47 static void frame_append(frame_T *after, frame_T *frp); 48 static void frame_insert(frame_T *before, frame_T *frp); 49 static void frame_remove(frame_T *frp); 50 static void win_goto_ver(int up, long count); 51 static void win_goto_hor(int left, long count); 52 static void frame_add_height(frame_T *frp, int n); 53 static void last_status_rec(frame_T *fr, int statusline); 54 55 static void make_snapshot_rec(frame_T *fr, frame_T **frp); 56 static void clear_snapshot(tabpage_T *tp, int idx); 57 static void clear_snapshot_rec(frame_T *fr); 58 static int check_snapshot_rec(frame_T *sn, frame_T *fr); 59 static win_T *restore_snapshot_rec(frame_T *sn, frame_T *fr); 60 61 static int frame_check_height(frame_T *topfrp, int height); 62 static int frame_check_width(frame_T *topfrp, int width); 63 64 static win_T *win_alloc(win_T *after, int hidden); 65 66 #define NOWIN (win_T *)-1 // non-existing window 67 68 #define ROWS_AVAIL (Rows - p_ch - tabline_height()) 69 70 static char *m_onlyone = N_("Already only one window"); 71 72 // When non-zero splitting a window is forbidden. Used to avoid that nasty 73 // autocommands mess up the window structure. 74 static int split_disallowed = 0; 75 76 // #define WIN_DEBUG 77 #ifdef WIN_DEBUG 78 /* 79 * Call this method to log the current window layout. 80 */ 81 static void 82 log_frame_layout(frame_T *frame) 83 { 84 ch_log(NULL, "layout %s, wi: %d, he: %d, wwi: %d, whe: %d, id: %d", 85 frame->fr_layout == FR_LEAF ? "LEAF" 86 : frame->fr_layout == FR_ROW ? "ROW" : "COL", 87 frame->fr_width, 88 frame->fr_height, 89 frame->fr_win == NULL ? -1 : frame->fr_win->w_width, 90 frame->fr_win == NULL ? -1 : frame->fr_win->w_height, 91 frame->fr_win == NULL ? -1 : frame->fr_win->w_id); 92 if (frame->fr_child != NULL) 93 { 94 ch_log(NULL, "children"); 95 log_frame_layout(frame->fr_child); 96 if (frame->fr_next != NULL) 97 ch_log(NULL, "END of children"); 98 } 99 if (frame->fr_next != NULL) 100 log_frame_layout(frame->fr_next); 101 } 102 #endif 103 104 /* 105 * All CTRL-W window commands are handled here, called from normal_cmd(). 106 */ 107 void 108 do_window( 109 int nchar, 110 long Prenum, 111 int xchar) // extra char from ":wincmd gx" or NUL 112 { 113 long Prenum1; 114 win_T *wp; 115 #if defined(FEAT_SEARCHPATH) || defined(FEAT_FIND_ID) 116 char_u *ptr; 117 linenr_T lnum = -1; 118 #endif 119 #ifdef FEAT_FIND_ID 120 int type = FIND_DEFINE; 121 int len; 122 #endif 123 char_u cbuf[40]; 124 125 if (ERROR_IF_POPUP_WINDOW) 126 return; 127 128 #ifdef FEAT_CMDWIN 129 # define CHECK_CMDWIN \ 130 do { \ 131 if (cmdwin_type != 0) \ 132 { \ 133 emsg(_(e_cmdwin)); \ 134 return; \ 135 } \ 136 } while (0) 137 #else 138 # define CHECK_CMDWIN do { /**/ } while (0) 139 #endif 140 141 Prenum1 = Prenum == 0 ? 1 : Prenum; 142 143 switch (nchar) 144 { 145 // split current window in two parts, horizontally 146 case 'S': 147 case Ctrl_S: 148 case 's': 149 CHECK_CMDWIN; 150 reset_VIsual_and_resel(); // stop Visual mode 151 #ifdef FEAT_QUICKFIX 152 // When splitting the quickfix window open a new buffer in it, 153 // don't replicate the quickfix buffer. 154 if (bt_quickfix(curbuf)) 155 goto newwindow; 156 #endif 157 #ifdef FEAT_GUI 158 need_mouse_correct = TRUE; 159 #endif 160 (void)win_split((int)Prenum, 0); 161 break; 162 163 // split current window in two parts, vertically 164 case Ctrl_V: 165 case 'v': 166 CHECK_CMDWIN; 167 reset_VIsual_and_resel(); // stop Visual mode 168 #ifdef FEAT_QUICKFIX 169 // When splitting the quickfix window open a new buffer in it, 170 // don't replicate the quickfix buffer. 171 if (bt_quickfix(curbuf)) 172 goto newwindow; 173 #endif 174 #ifdef FEAT_GUI 175 need_mouse_correct = TRUE; 176 #endif 177 (void)win_split((int)Prenum, WSP_VERT); 178 break; 179 180 // split current window and edit alternate file 181 case Ctrl_HAT: 182 case '^': 183 CHECK_CMDWIN; 184 reset_VIsual_and_resel(); // stop Visual mode 185 186 if (buflist_findnr(Prenum == 0 187 ? curwin->w_alt_fnum : Prenum) == NULL) 188 { 189 if (Prenum == 0) 190 emsg(_(e_noalt)); 191 else 192 semsg(_("E92: Buffer %ld not found"), Prenum); 193 break; 194 } 195 196 if (!curbuf_locked() && win_split(0, 0) == OK) 197 (void)buflist_getfile( 198 Prenum == 0 ? curwin->w_alt_fnum : Prenum, 199 (linenr_T)0, GETF_ALT, FALSE); 200 break; 201 202 // open new window 203 case Ctrl_N: 204 case 'n': 205 CHECK_CMDWIN; 206 reset_VIsual_and_resel(); // stop Visual mode 207 #ifdef FEAT_QUICKFIX 208 newwindow: 209 #endif 210 if (Prenum) 211 // window height 212 vim_snprintf((char *)cbuf, sizeof(cbuf) - 5, "%ld", Prenum); 213 else 214 cbuf[0] = NUL; 215 #if defined(FEAT_QUICKFIX) 216 if (nchar == 'v' || nchar == Ctrl_V) 217 STRCAT(cbuf, "v"); 218 #endif 219 STRCAT(cbuf, "new"); 220 do_cmdline_cmd(cbuf); 221 break; 222 223 // quit current window 224 case Ctrl_Q: 225 case 'q': 226 reset_VIsual_and_resel(); // stop Visual mode 227 cmd_with_count("quit", cbuf, sizeof(cbuf), Prenum); 228 do_cmdline_cmd(cbuf); 229 break; 230 231 // close current window 232 case Ctrl_C: 233 case 'c': 234 reset_VIsual_and_resel(); // stop Visual mode 235 cmd_with_count("close", cbuf, sizeof(cbuf), Prenum); 236 do_cmdline_cmd(cbuf); 237 break; 238 239 #if defined(FEAT_QUICKFIX) 240 // close preview window 241 case Ctrl_Z: 242 case 'z': 243 CHECK_CMDWIN; 244 reset_VIsual_and_resel(); // stop Visual mode 245 do_cmdline_cmd((char_u *)"pclose"); 246 break; 247 248 // cursor to preview window 249 case 'P': 250 FOR_ALL_WINDOWS(wp) 251 if (wp->w_p_pvw) 252 break; 253 if (wp == NULL) 254 emsg(_("E441: There is no preview window")); 255 else 256 win_goto(wp); 257 break; 258 #endif 259 260 // close all but current window 261 case Ctrl_O: 262 case 'o': 263 CHECK_CMDWIN; 264 reset_VIsual_and_resel(); // stop Visual mode 265 cmd_with_count("only", cbuf, sizeof(cbuf), Prenum); 266 do_cmdline_cmd(cbuf); 267 break; 268 269 // cursor to next window with wrap around 270 case Ctrl_W: 271 case 'w': 272 // cursor to previous window with wrap around 273 case 'W': 274 CHECK_CMDWIN; 275 if (ONE_WINDOW && Prenum != 1) // just one window 276 beep_flush(); 277 else 278 { 279 if (Prenum) // go to specified window 280 { 281 for (wp = firstwin; --Prenum > 0; ) 282 { 283 if (wp->w_next == NULL) 284 break; 285 else 286 wp = wp->w_next; 287 } 288 } 289 else 290 { 291 if (nchar == 'W') // go to previous window 292 { 293 wp = curwin->w_prev; 294 if (wp == NULL) 295 wp = lastwin; // wrap around 296 } 297 else // go to next window 298 { 299 wp = curwin->w_next; 300 if (wp == NULL) 301 wp = firstwin; // wrap around 302 } 303 } 304 win_goto(wp); 305 } 306 break; 307 308 // cursor to window below 309 case 'j': 310 case K_DOWN: 311 case Ctrl_J: 312 CHECK_CMDWIN; 313 win_goto_ver(FALSE, Prenum1); 314 break; 315 316 // cursor to window above 317 case 'k': 318 case K_UP: 319 case Ctrl_K: 320 CHECK_CMDWIN; 321 win_goto_ver(TRUE, Prenum1); 322 break; 323 324 // 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; 340 341 // move window to new tab page 342 case 'T': 343 if (one_window()) 344 msg(_(m_onlyone)); 345 else 346 { 347 tabpage_T *oldtab = curtab; 348 tabpage_T *newtab; 349 350 // First create a new tab with the window, then go back to 351 // the old tab and close the window there. 352 wp = curwin; 353 if (win_new_tabpage((int)Prenum) == OK 354 && valid_tabpage(oldtab)) 355 { 356 newtab = curtab; 357 goto_tabpage_tp(oldtab, TRUE, TRUE); 358 if (curwin == wp) 359 win_close(curwin, FALSE); 360 if (valid_tabpage(newtab)) 361 goto_tabpage_tp(newtab, TRUE, TRUE); 362 } 363 } 364 break; 365 366 // cursor to top-left window 367 case 't': 368 case Ctrl_T: 369 win_goto(firstwin); 370 break; 371 372 // cursor to bottom-right window 373 case 'b': 374 case Ctrl_B: 375 win_goto(lastwin); 376 break; 377 378 // cursor to last accessed (previous) window 379 case 'p': 380 case Ctrl_P: 381 if (!win_valid(prevwin)) 382 beep_flush(); 383 else 384 win_goto(prevwin); 385 break; 386 387 // exchange current and next window 388 case 'x': 389 case Ctrl_X: 390 CHECK_CMDWIN; 391 win_exchange(Prenum); 392 break; 393 394 // rotate windows downwards 395 case Ctrl_R: 396 case 'r': 397 CHECK_CMDWIN; 398 reset_VIsual_and_resel(); // stop Visual mode 399 win_rotate(FALSE, (int)Prenum1); // downwards 400 break; 401 402 // rotate windows upwards 403 case 'R': 404 CHECK_CMDWIN; 405 reset_VIsual_and_resel(); // stop Visual mode 406 win_rotate(TRUE, (int)Prenum1); // upwards 407 break; 408 409 // move window to the very top/bottom/left/right 410 case 'K': 411 case 'J': 412 case 'H': 413 case 'L': 414 CHECK_CMDWIN; 415 win_totop((int)Prenum, 416 ((nchar == 'H' || nchar == 'L') ? WSP_VERT : 0) 417 | ((nchar == 'H' || nchar == 'K') ? WSP_TOP : WSP_BOT)); 418 break; 419 420 // make all windows the same height 421 case '=': 422 #ifdef FEAT_GUI 423 need_mouse_correct = TRUE; 424 #endif 425 win_equal(NULL, FALSE, 'b'); 426 break; 427 428 // increase current window height 429 case '+': 430 #ifdef FEAT_GUI 431 need_mouse_correct = TRUE; 432 #endif 433 win_setheight(curwin->w_height + (int)Prenum1); 434 break; 435 436 // decrease current window height 437 case '-': 438 #ifdef FEAT_GUI 439 need_mouse_correct = TRUE; 440 #endif 441 win_setheight(curwin->w_height - (int)Prenum1); 442 break; 443 444 // set current window height 445 case Ctrl__: 446 case '_': 447 #ifdef FEAT_GUI 448 need_mouse_correct = TRUE; 449 #endif 450 win_setheight(Prenum ? (int)Prenum : 9999); 451 break; 452 453 // increase current window width 454 case '>': 455 #ifdef FEAT_GUI 456 need_mouse_correct = TRUE; 457 #endif 458 win_setwidth(curwin->w_width + (int)Prenum1); 459 break; 460 461 // decrease 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 // set current window width 470 case '|': 471 #ifdef FEAT_GUI 472 need_mouse_correct = TRUE; 473 #endif 474 win_setwidth(Prenum != 0 ? (int)Prenum : 9999); 475 break; 476 477 // jump to tag and split window if tag exists (in preview window) 478 #if defined(FEAT_QUICKFIX) 479 case '}': 480 CHECK_CMDWIN; 481 if (Prenum) 482 g_do_tagpreview = Prenum; 483 else 484 g_do_tagpreview = p_pvh; 485 #endif 486 // FALLTHROUGH 487 case ']': 488 case Ctrl_RSB: 489 CHECK_CMDWIN; 490 // keep Visual mode, can select words to use as a tag 491 if (Prenum) 492 postponed_split = Prenum; 493 else 494 postponed_split = -1; 495 #ifdef FEAT_QUICKFIX 496 if (nchar != '}') 497 g_do_tagpreview = 0; 498 #endif 499 500 // Execute the command right here, required when "wincmd ]" 501 // was used in a function. 502 do_nv_ident(Ctrl_RSB, NUL); 503 break; 504 505 #ifdef FEAT_SEARCHPATH 506 // edit file name under cursor in a new window 507 case 'f': 508 case 'F': 509 case Ctrl_F: 510 wingotofile: 511 CHECK_CMDWIN; 512 513 ptr = grab_file_name(Prenum1, &lnum); 514 if (ptr != NULL) 515 { 516 tabpage_T *oldtab = curtab; 517 win_T *oldwin = curwin; 518 # ifdef FEAT_GUI 519 need_mouse_correct = TRUE; 520 # endif 521 setpcmark(); 522 if (win_split(0, 0) == OK) 523 { 524 RESET_BINDING(curwin); 525 if (do_ecmd(0, ptr, NULL, NULL, ECMD_LASTL, 526 ECMD_HIDE, NULL) == FAIL) 527 { 528 // Failed to open the file, close the window 529 // opened for it. 530 win_close(curwin, FALSE); 531 goto_tabpage_win(oldtab, oldwin); 532 } 533 else if (nchar == 'F' && lnum >= 0) 534 { 535 curwin->w_cursor.lnum = lnum; 536 check_cursor_lnum(); 537 beginline(BL_SOL | BL_FIX); 538 } 539 } 540 vim_free(ptr); 541 } 542 break; 543 #endif 544 545 #ifdef FEAT_FIND_ID 546 // Go to the first occurrence of the identifier under cursor along path in a 547 // new window -- webb 548 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 // Quickfix window only: view the result under the cursor in a new split. 565 #if defined(FEAT_QUICKFIX) 566 case K_KENTER: 567 case CAR: 568 if (bt_quickfix(curbuf)) 569 qf_view_result(TRUE); 570 break; 571 #endif 572 573 // CTRL-W g extended commands 574 case 'g': 575 case Ctrl_G: 576 CHECK_CMDWIN; 577 #ifdef USE_ON_FLY_SCROLL 578 dont_scroll = TRUE; // disallow scrolling here 579 #endif 580 ++no_mapping; 581 ++allow_keys; // no mapping for xchar, but allow key codes 582 if (xchar == NUL) 583 xchar = plain_vgetc(); 584 LANGMAP_ADJUST(xchar, TRUE); 585 --no_mapping; 586 --allow_keys; 587 #ifdef FEAT_CMDL_INFO 588 (void)add_to_showcmd(xchar); 589 #endif 590 switch (xchar) 591 { 592 #if defined(FEAT_QUICKFIX) 593 case '}': 594 xchar = Ctrl_RSB; 595 if (Prenum) 596 g_do_tagpreview = Prenum; 597 else 598 g_do_tagpreview = p_pvh; 599 #endif 600 // FALLTHROUGH 601 case ']': 602 case Ctrl_RSB: 603 // keep Visual mode, can select words to use as a tag 604 if (Prenum) 605 postponed_split = Prenum; 606 else 607 postponed_split = -1; 608 609 // Execute the command right here, required when 610 // "wincmd g}" was used in a function. 611 do_nv_ident('g', xchar); 612 break; 613 614 #ifdef FEAT_SEARCHPATH 615 case 'f': // CTRL-W gf: "gf" in a new tab page 616 case 'F': // CTRL-W gF: "gF" in a new tab page 617 cmdmod.tab = tabpage_index(curtab) + 1; 618 nchar = xchar; 619 goto wingotofile; 620 #endif 621 case 't': // CTRL-W gt: go to next tab page 622 goto_tabpage((int)Prenum); 623 break; 624 625 case 'T': // CTRL-W gT: go to previous tab page 626 goto_tabpage(-(int)Prenum1); 627 break; 628 629 default: 630 beep_flush(); 631 break; 632 } 633 break; 634 635 default: beep_flush(); 636 break; 637 } 638 } 639 640 /* 641 * Figure out the address type for ":wincmd". 642 */ 643 void 644 get_wincmd_addr_type(char_u *arg, exarg_T *eap) 645 { 646 switch (*arg) 647 { 648 case 'S': 649 case Ctrl_S: 650 case 's': 651 case Ctrl_N: 652 case 'n': 653 case 'j': 654 case Ctrl_J: 655 case 'k': 656 case Ctrl_K: 657 case 'T': 658 case Ctrl_R: 659 case 'r': 660 case 'R': 661 case 'K': 662 case 'J': 663 case '+': 664 case '-': 665 case Ctrl__: 666 case '_': 667 case '|': 668 case ']': 669 case Ctrl_RSB: 670 case 'g': 671 case Ctrl_G: 672 case Ctrl_V: 673 case 'v': 674 case 'h': 675 case Ctrl_H: 676 case 'l': 677 case Ctrl_L: 678 case 'H': 679 case 'L': 680 case '>': 681 case '<': 682 #if defined(FEAT_QUICKFIX) 683 case '}': 684 #endif 685 #ifdef FEAT_SEARCHPATH 686 case 'f': 687 case 'F': 688 case Ctrl_F: 689 #endif 690 #ifdef FEAT_FIND_ID 691 case 'i': 692 case Ctrl_I: 693 case 'd': 694 case Ctrl_D: 695 #endif 696 // window size or any count 697 eap->addr_type = ADDR_OTHER; 698 break; 699 700 case Ctrl_HAT: 701 case '^': 702 // buffer number 703 eap->addr_type = ADDR_BUFFERS; 704 break; 705 706 case Ctrl_Q: 707 case 'q': 708 case Ctrl_C: 709 case 'c': 710 case Ctrl_O: 711 case 'o': 712 case Ctrl_W: 713 case 'w': 714 case 'W': 715 case 'x': 716 case Ctrl_X: 717 // window number 718 eap->addr_type = ADDR_WINDOWS; 719 break; 720 721 #if defined(FEAT_QUICKFIX) 722 case Ctrl_Z: 723 case 'z': 724 case 'P': 725 #endif 726 case 't': 727 case Ctrl_T: 728 case 'b': 729 case Ctrl_B: 730 case 'p': 731 case Ctrl_P: 732 case '=': 733 case CAR: 734 // no count 735 eap->addr_type = ADDR_NONE; 736 break; 737 } 738 } 739 740 static void 741 cmd_with_count( 742 char *cmd, 743 char_u *bufp, 744 size_t bufsize, 745 long Prenum) 746 { 747 size_t len = STRLEN(cmd); 748 749 STRCPY(bufp, cmd); 750 if (Prenum > 0) 751 vim_snprintf((char *)bufp + len, bufsize - len, "%ld", Prenum); 752 } 753 754 /* 755 * If "split_disallowed" is set given an error and return FAIL. 756 * Otherwise return OK. 757 */ 758 static int 759 check_split_disallowed() 760 { 761 if (split_disallowed > 0) 762 { 763 emsg(_("E242: Can't split a window while closing another")); 764 return FAIL; 765 } 766 return OK; 767 } 768 769 /* 770 * split the current window, implements CTRL-W s and :split 771 * 772 * "size" is the height or width for the new window, 0 to use half of current 773 * height or width. 774 * 775 * "flags": 776 * WSP_ROOM: require enough room for new window 777 * WSP_VERT: vertical split. 778 * WSP_TOP: open window at the top-left of the shell (help window). 779 * WSP_BOT: open window at the bottom-right of the shell (quickfix window). 780 * WSP_HELP: creating the help window, keep layout snapshot 781 * 782 * return FAIL for failure, OK otherwise 783 */ 784 int 785 win_split(int size, int flags) 786 { 787 if (ERROR_IF_POPUP_WINDOW) 788 return FAIL; 789 790 // When the ":tab" modifier was used open a new tab page instead. 791 if (may_open_tabpage() == OK) 792 return OK; 793 794 // Add flags from ":vertical", ":topleft" and ":botright". 795 flags |= cmdmod.split; 796 if ((flags & WSP_TOP) && (flags & WSP_BOT)) 797 { 798 emsg(_("E442: Can't split topleft and botright at the same time")); 799 return FAIL; 800 } 801 if (check_split_disallowed() == FAIL) 802 return FAIL; 803 804 // When creating the help window make a snapshot of the window layout. 805 // Otherwise clear the snapshot, it's now invalid. 806 if (flags & WSP_HELP) 807 make_snapshot(SNAP_HELP_IDX); 808 else 809 clear_snapshot(curtab, SNAP_HELP_IDX); 810 811 return win_split_ins(size, flags, NULL, 0); 812 } 813 814 /* 815 * When "new_wp" is NULL: split the current window in two. 816 * When "new_wp" is not NULL: insert this window at the far 817 * top/left/right/bottom. 818 * return FAIL for failure, OK otherwise 819 */ 820 int 821 win_split_ins( 822 int size, 823 int flags, 824 win_T *new_wp, 825 int dir) 826 { 827 win_T *wp = new_wp; 828 win_T *oldwin; 829 int new_size = size; 830 int i; 831 int need_status = 0; 832 int do_equal = FALSE; 833 int needed; 834 int available; 835 int oldwin_height = 0; 836 int layout; 837 frame_T *frp, *curfrp, *frp2, *prevfrp; 838 int before; 839 int minheight; 840 int wmh1; 841 int did_set_fraction = FALSE; 842 843 if (flags & WSP_TOP) 844 oldwin = firstwin; 845 else if (flags & WSP_BOT) 846 oldwin = lastwin; 847 else 848 oldwin = curwin; 849 850 // add a status line when p_ls == 1 and splitting the first window 851 if (ONE_WINDOW && p_ls == 1 && oldwin->w_status_height == 0) 852 { 853 if (VISIBLE_HEIGHT(oldwin) <= p_wmh && new_wp == NULL) 854 { 855 emsg(_(e_noroom)); 856 return FAIL; 857 } 858 need_status = STATUS_HEIGHT; 859 } 860 861 #ifdef FEAT_GUI 862 // May be needed for the scrollbars that are going to change. 863 if (gui.in_use) 864 out_flush(); 865 #endif 866 867 if (flags & WSP_VERT) 868 { 869 int wmw1; 870 int minwidth; 871 872 layout = FR_ROW; 873 874 /* 875 * Check if we are able to split the current window and compute its 876 * width. 877 */ 878 // Current window requires at least 1 space. 879 wmw1 = (p_wmw == 0 ? 1 : p_wmw); 880 needed = wmw1 + 1; 881 if (flags & WSP_ROOM) 882 needed += p_wiw - wmw1; 883 if (flags & (WSP_BOT | WSP_TOP)) 884 { 885 minwidth = frame_minwidth(topframe, NOWIN); 886 available = topframe->fr_width; 887 needed += minwidth; 888 } 889 else if (p_ea) 890 { 891 minwidth = frame_minwidth(oldwin->w_frame, NOWIN); 892 prevfrp = oldwin->w_frame; 893 for (frp = oldwin->w_frame->fr_parent; frp != NULL; 894 frp = frp->fr_parent) 895 { 896 if (frp->fr_layout == FR_ROW) 897 FOR_ALL_FRAMES(frp2, frp->fr_child) 898 if (frp2 != prevfrp) 899 minwidth += frame_minwidth(frp2, NOWIN); 900 prevfrp = frp; 901 } 902 available = topframe->fr_width; 903 needed += minwidth; 904 } 905 else 906 { 907 minwidth = frame_minwidth(oldwin->w_frame, NOWIN); 908 available = oldwin->w_frame->fr_width; 909 needed += minwidth; 910 } 911 if (available < needed && new_wp == NULL) 912 { 913 emsg(_(e_noroom)); 914 return FAIL; 915 } 916 if (new_size == 0) 917 new_size = oldwin->w_width / 2; 918 if (new_size > available - minwidth - 1) 919 new_size = available - minwidth - 1; 920 if (new_size < wmw1) 921 new_size = wmw1; 922 923 // if it doesn't fit in the current window, need win_equal() 924 if (oldwin->w_width - new_size - 1 < p_wmw) 925 do_equal = TRUE; 926 927 // We don't like to take lines for the new window from a 928 // 'winfixwidth' window. Take them from a window to the left or right 929 // instead, if possible. Add one for the separator. 930 if (oldwin->w_p_wfw) 931 win_setwidth_win(oldwin->w_width + new_size + 1, oldwin); 932 933 // Only make all windows the same width if one of them (except oldwin) 934 // is wider than one of the split windows. 935 if (!do_equal && p_ea && size == 0 && *p_ead != 'v' 936 && oldwin->w_frame->fr_parent != NULL) 937 { 938 frp = oldwin->w_frame->fr_parent->fr_child; 939 while (frp != NULL) 940 { 941 if (frp->fr_win != oldwin && frp->fr_win != NULL 942 && (frp->fr_win->w_width > new_size 943 || frp->fr_win->w_width > oldwin->w_width 944 - new_size - 1)) 945 { 946 do_equal = TRUE; 947 break; 948 } 949 frp = frp->fr_next; 950 } 951 } 952 } 953 else 954 { 955 layout = FR_COL; 956 957 /* 958 * Check if we are able to split the current window and compute its 959 * height. 960 */ 961 // Current window requires at least 1 space. 962 wmh1 = (p_wmh == 0 ? 1 : p_wmh) + WINBAR_HEIGHT(curwin); 963 needed = wmh1 + STATUS_HEIGHT; 964 if (flags & WSP_ROOM) 965 needed += p_wh - wmh1; 966 if (flags & (WSP_BOT | WSP_TOP)) 967 { 968 minheight = frame_minheight(topframe, NOWIN) + need_status; 969 available = topframe->fr_height; 970 needed += minheight; 971 } 972 else if (p_ea) 973 { 974 minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; 975 prevfrp = oldwin->w_frame; 976 for (frp = oldwin->w_frame->fr_parent; frp != NULL; 977 frp = frp->fr_parent) 978 { 979 if (frp->fr_layout == FR_COL) 980 FOR_ALL_FRAMES(frp2, frp->fr_child) 981 if (frp2 != prevfrp) 982 minheight += frame_minheight(frp2, NOWIN); 983 prevfrp = frp; 984 } 985 available = topframe->fr_height; 986 needed += minheight; 987 } 988 else 989 { 990 minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; 991 available = oldwin->w_frame->fr_height; 992 needed += minheight; 993 } 994 if (available < needed && new_wp == NULL) 995 { 996 emsg(_(e_noroom)); 997 return FAIL; 998 } 999 oldwin_height = oldwin->w_height; 1000 if (need_status) 1001 { 1002 oldwin->w_status_height = STATUS_HEIGHT; 1003 oldwin_height -= STATUS_HEIGHT; 1004 } 1005 if (new_size == 0) 1006 new_size = oldwin_height / 2; 1007 if (new_size > available - minheight - STATUS_HEIGHT) 1008 new_size = available - minheight - STATUS_HEIGHT; 1009 if (new_size < wmh1) 1010 new_size = wmh1; 1011 1012 // if it doesn't fit in the current window, need win_equal() 1013 if (oldwin_height - new_size - STATUS_HEIGHT < p_wmh) 1014 do_equal = TRUE; 1015 1016 // We don't like to take lines for the new window from a 1017 // 'winfixheight' window. Take them from a window above or below 1018 // instead, if possible. 1019 if (oldwin->w_p_wfh) 1020 { 1021 // Set w_fraction now so that the cursor keeps the same relative 1022 // vertical position using the old height. 1023 set_fraction(oldwin); 1024 did_set_fraction = TRUE; 1025 1026 win_setheight_win(oldwin->w_height + new_size + STATUS_HEIGHT, 1027 oldwin); 1028 oldwin_height = oldwin->w_height; 1029 if (need_status) 1030 oldwin_height -= STATUS_HEIGHT; 1031 } 1032 1033 // Only make all windows the same height if one of them (except oldwin) 1034 // is higher than one of the split windows. 1035 if (!do_equal && p_ea && size == 0 && *p_ead != 'h' 1036 && oldwin->w_frame->fr_parent != NULL) 1037 { 1038 frp = oldwin->w_frame->fr_parent->fr_child; 1039 while (frp != NULL) 1040 { 1041 if (frp->fr_win != oldwin && frp->fr_win != NULL 1042 && (frp->fr_win->w_height > new_size 1043 || frp->fr_win->w_height > oldwin_height - new_size 1044 - STATUS_HEIGHT)) 1045 { 1046 do_equal = TRUE; 1047 break; 1048 } 1049 frp = frp->fr_next; 1050 } 1051 } 1052 } 1053 1054 /* 1055 * allocate new window structure and link it in the window list 1056 */ 1057 if ((flags & WSP_TOP) == 0 1058 && ((flags & WSP_BOT) 1059 || (flags & WSP_BELOW) 1060 || (!(flags & WSP_ABOVE) 1061 && ( (flags & WSP_VERT) ? p_spr : p_sb)))) 1062 { 1063 // new window below/right of current one 1064 if (new_wp == NULL) 1065 wp = win_alloc(oldwin, FALSE); 1066 else 1067 win_append(oldwin, wp); 1068 } 1069 else 1070 { 1071 if (new_wp == NULL) 1072 wp = win_alloc(oldwin->w_prev, FALSE); 1073 else 1074 win_append(oldwin->w_prev, wp); 1075 } 1076 1077 if (new_wp == NULL) 1078 { 1079 if (wp == NULL) 1080 return FAIL; 1081 1082 new_frame(wp); 1083 if (wp->w_frame == NULL) 1084 { 1085 win_free(wp, NULL); 1086 return FAIL; 1087 } 1088 1089 // make the contents of the new window the same as the current one 1090 win_init(wp, curwin, flags); 1091 } 1092 1093 /* 1094 * Reorganise the tree of frames to insert the new window. 1095 */ 1096 if (flags & (WSP_TOP | WSP_BOT)) 1097 { 1098 if ((topframe->fr_layout == FR_COL && (flags & WSP_VERT) == 0) 1099 || (topframe->fr_layout == FR_ROW && (flags & WSP_VERT) != 0)) 1100 { 1101 curfrp = topframe->fr_child; 1102 if (flags & WSP_BOT) 1103 while (curfrp->fr_next != NULL) 1104 curfrp = curfrp->fr_next; 1105 } 1106 else 1107 curfrp = topframe; 1108 before = (flags & WSP_TOP); 1109 } 1110 else 1111 { 1112 curfrp = oldwin->w_frame; 1113 if (flags & WSP_BELOW) 1114 before = FALSE; 1115 else if (flags & WSP_ABOVE) 1116 before = TRUE; 1117 else if (flags & WSP_VERT) 1118 before = !p_spr; 1119 else 1120 before = !p_sb; 1121 } 1122 if (curfrp->fr_parent == NULL || curfrp->fr_parent->fr_layout != layout) 1123 { 1124 // Need to create a new frame in the tree to make a branch. 1125 frp = ALLOC_CLEAR_ONE(frame_T); 1126 *frp = *curfrp; 1127 curfrp->fr_layout = layout; 1128 frp->fr_parent = curfrp; 1129 frp->fr_next = NULL; 1130 frp->fr_prev = NULL; 1131 curfrp->fr_child = frp; 1132 curfrp->fr_win = NULL; 1133 curfrp = frp; 1134 if (frp->fr_win != NULL) 1135 oldwin->w_frame = frp; 1136 else 1137 FOR_ALL_FRAMES(frp, frp->fr_child) 1138 frp->fr_parent = curfrp; 1139 } 1140 1141 if (new_wp == NULL) 1142 frp = wp->w_frame; 1143 else 1144 frp = new_wp->w_frame; 1145 frp->fr_parent = curfrp->fr_parent; 1146 1147 // Insert the new frame at the right place in the frame list. 1148 if (before) 1149 frame_insert(curfrp, frp); 1150 else 1151 frame_append(curfrp, frp); 1152 1153 // Set w_fraction now so that the cursor keeps the same relative 1154 // vertical position. 1155 if (!did_set_fraction) 1156 set_fraction(oldwin); 1157 wp->w_fraction = oldwin->w_fraction; 1158 1159 if (flags & WSP_VERT) 1160 { 1161 wp->w_p_scr = curwin->w_p_scr; 1162 1163 if (need_status) 1164 { 1165 win_new_height(oldwin, oldwin->w_height - 1); 1166 oldwin->w_status_height = need_status; 1167 } 1168 if (flags & (WSP_TOP | WSP_BOT)) 1169 { 1170 // set height and row of new window to full height 1171 wp->w_winrow = tabline_height(); 1172 win_new_height(wp, curfrp->fr_height - (p_ls > 0) 1173 - WINBAR_HEIGHT(wp)); 1174 wp->w_status_height = (p_ls > 0); 1175 } 1176 else 1177 { 1178 // height and row of new window is same as current window 1179 wp->w_winrow = oldwin->w_winrow; 1180 win_new_height(wp, VISIBLE_HEIGHT(oldwin)); 1181 wp->w_status_height = oldwin->w_status_height; 1182 } 1183 frp->fr_height = curfrp->fr_height; 1184 1185 // "new_size" of the current window goes to the new window, use 1186 // one column for the vertical separator 1187 win_new_width(wp, new_size); 1188 if (before) 1189 wp->w_vsep_width = 1; 1190 else 1191 { 1192 wp->w_vsep_width = oldwin->w_vsep_width; 1193 oldwin->w_vsep_width = 1; 1194 } 1195 if (flags & (WSP_TOP | WSP_BOT)) 1196 { 1197 if (flags & WSP_BOT) 1198 frame_add_vsep(curfrp); 1199 // Set width of neighbor frame 1200 frame_new_width(curfrp, curfrp->fr_width 1201 - (new_size + ((flags & WSP_TOP) != 0)), flags & WSP_TOP, 1202 FALSE); 1203 } 1204 else 1205 win_new_width(oldwin, oldwin->w_width - (new_size + 1)); 1206 if (before) // new window left of current one 1207 { 1208 wp->w_wincol = oldwin->w_wincol; 1209 oldwin->w_wincol += new_size + 1; 1210 } 1211 else // new window right of current one 1212 wp->w_wincol = oldwin->w_wincol + oldwin->w_width + 1; 1213 frame_fix_width(oldwin); 1214 frame_fix_width(wp); 1215 } 1216 else 1217 { 1218 // width and column of new window is same as current window 1219 if (flags & (WSP_TOP | WSP_BOT)) 1220 { 1221 wp->w_wincol = 0; 1222 win_new_width(wp, Columns); 1223 wp->w_vsep_width = 0; 1224 } 1225 else 1226 { 1227 wp->w_wincol = oldwin->w_wincol; 1228 win_new_width(wp, oldwin->w_width); 1229 wp->w_vsep_width = oldwin->w_vsep_width; 1230 } 1231 frp->fr_width = curfrp->fr_width; 1232 1233 // "new_size" of the current window goes to the new window, use 1234 // one row for the status line 1235 win_new_height(wp, new_size); 1236 if (flags & (WSP_TOP | WSP_BOT)) 1237 { 1238 int new_fr_height = curfrp->fr_height - new_size 1239 + WINBAR_HEIGHT(wp) ; 1240 1241 if (!((flags & WSP_BOT) && p_ls == 0)) 1242 new_fr_height -= STATUS_HEIGHT; 1243 frame_new_height(curfrp, new_fr_height, flags & WSP_TOP, FALSE); 1244 } 1245 else 1246 win_new_height(oldwin, oldwin_height - (new_size + STATUS_HEIGHT)); 1247 if (before) // new window above current one 1248 { 1249 wp->w_winrow = oldwin->w_winrow; 1250 wp->w_status_height = STATUS_HEIGHT; 1251 oldwin->w_winrow += wp->w_height + STATUS_HEIGHT; 1252 } 1253 else // new window below current one 1254 { 1255 wp->w_winrow = oldwin->w_winrow + VISIBLE_HEIGHT(oldwin) 1256 + STATUS_HEIGHT; 1257 wp->w_status_height = oldwin->w_status_height; 1258 if (!(flags & WSP_BOT)) 1259 oldwin->w_status_height = STATUS_HEIGHT; 1260 } 1261 if (flags & WSP_BOT) 1262 frame_add_statusline(curfrp); 1263 frame_fix_height(wp); 1264 frame_fix_height(oldwin); 1265 } 1266 1267 if (flags & (WSP_TOP | WSP_BOT)) 1268 (void)win_comp_pos(); 1269 1270 /* 1271 * Both windows need redrawing 1272 */ 1273 redraw_win_later(wp, NOT_VALID); 1274 wp->w_redr_status = TRUE; 1275 redraw_win_later(oldwin, NOT_VALID); 1276 oldwin->w_redr_status = TRUE; 1277 1278 if (need_status) 1279 { 1280 msg_row = Rows - 1; 1281 msg_col = sc_col; 1282 msg_clr_eos_force(); // Old command/ruler may still be there 1283 comp_col(); 1284 msg_row = Rows - 1; 1285 msg_col = 0; // put position back at start of line 1286 } 1287 1288 /* 1289 * equalize the window sizes. 1290 */ 1291 if (do_equal || dir != 0) 1292 win_equal(wp, TRUE, 1293 (flags & WSP_VERT) ? (dir == 'v' ? 'b' : 'h') 1294 : dir == 'h' ? 'b' : 'v'); 1295 1296 // Don't change the window height/width to 'winheight' / 'winwidth' if a 1297 // size was given. 1298 if (flags & WSP_VERT) 1299 { 1300 i = p_wiw; 1301 if (size != 0) 1302 p_wiw = size; 1303 1304 # ifdef FEAT_GUI 1305 // When 'guioptions' includes 'L' or 'R' may have to add scrollbars. 1306 if (gui.in_use) 1307 gui_init_which_components(NULL); 1308 # endif 1309 } 1310 else 1311 { 1312 i = p_wh; 1313 if (size != 0) 1314 p_wh = size; 1315 } 1316 1317 #ifdef FEAT_JUMPLIST 1318 // Keep same changelist position in new window. 1319 wp->w_changelistidx = oldwin->w_changelistidx; 1320 #endif 1321 1322 /* 1323 * make the new window the current window 1324 */ 1325 win_enter_ext(wp, FALSE, FALSE, TRUE, TRUE, TRUE); 1326 if (flags & WSP_VERT) 1327 p_wiw = i; 1328 else 1329 p_wh = i; 1330 1331 return OK; 1332 } 1333 1334 1335 /* 1336 * Initialize window "newp" from window "oldp". 1337 * Used when splitting a window and when creating a new tab page. 1338 * The windows will both edit the same buffer. 1339 * WSP_NEWLOC may be specified in flags to prevent the location list from 1340 * being copied. 1341 */ 1342 static void 1343 win_init(win_T *newp, win_T *oldp, int flags UNUSED) 1344 { 1345 int i; 1346 1347 newp->w_buffer = oldp->w_buffer; 1348 #ifdef FEAT_SYN_HL 1349 newp->w_s = &(oldp->w_buffer->b_s); 1350 #endif 1351 oldp->w_buffer->b_nwindows++; 1352 newp->w_cursor = oldp->w_cursor; 1353 newp->w_valid = 0; 1354 newp->w_curswant = oldp->w_curswant; 1355 newp->w_set_curswant = oldp->w_set_curswant; 1356 newp->w_topline = oldp->w_topline; 1357 #ifdef FEAT_DIFF 1358 newp->w_topfill = oldp->w_topfill; 1359 #endif 1360 newp->w_leftcol = oldp->w_leftcol; 1361 newp->w_pcmark = oldp->w_pcmark; 1362 newp->w_prev_pcmark = oldp->w_prev_pcmark; 1363 newp->w_alt_fnum = oldp->w_alt_fnum; 1364 newp->w_wrow = oldp->w_wrow; 1365 newp->w_fraction = oldp->w_fraction; 1366 newp->w_prev_fraction_row = oldp->w_prev_fraction_row; 1367 #ifdef FEAT_JUMPLIST 1368 copy_jumplist(oldp, newp); 1369 #endif 1370 #ifdef FEAT_QUICKFIX 1371 if (flags & WSP_NEWLOC) 1372 { 1373 // Don't copy the location list. 1374 newp->w_llist = NULL; 1375 newp->w_llist_ref = NULL; 1376 } 1377 else 1378 copy_loclist_stack(oldp, newp); 1379 #endif 1380 newp->w_localdir = (oldp->w_localdir == NULL) 1381 ? NULL : vim_strsave(oldp->w_localdir); 1382 1383 // copy tagstack and folds 1384 for (i = 0; i < oldp->w_tagstacklen; i++) 1385 { 1386 taggy_T *tag = &newp->w_tagstack[i]; 1387 *tag = oldp->w_tagstack[i]; 1388 if (tag->tagname != NULL) 1389 tag->tagname = vim_strsave(tag->tagname); 1390 if (tag->user_data != NULL) 1391 tag->user_data = vim_strsave(tag->user_data); 1392 } 1393 newp->w_tagstackidx = oldp->w_tagstackidx; 1394 newp->w_tagstacklen = oldp->w_tagstacklen; 1395 #ifdef FEAT_FOLDING 1396 copyFoldingState(oldp, newp); 1397 #endif 1398 1399 win_init_some(newp, oldp); 1400 1401 #ifdef FEAT_SYN_HL 1402 check_colorcolumn(newp); 1403 #endif 1404 } 1405 1406 /* 1407 * Initialize window "newp" from window "old". 1408 * Only the essential things are copied. 1409 */ 1410 static void 1411 win_init_some(win_T *newp, win_T *oldp) 1412 { 1413 // Use the same argument list. 1414 newp->w_alist = oldp->w_alist; 1415 ++newp->w_alist->al_refcount; 1416 newp->w_arg_idx = oldp->w_arg_idx; 1417 1418 // copy options from existing window 1419 win_copy_options(oldp, newp); 1420 } 1421 1422 /* 1423 * Return TRUE if "win" is a global popup or a popup in the current tab page. 1424 */ 1425 int 1426 win_valid_popup(win_T *win UNUSED) 1427 { 1428 #ifdef FEAT_PROP_POPUP 1429 win_T *wp; 1430 1431 for (wp = first_popupwin; wp != NULL; wp = wp->w_next) 1432 if (wp == win) 1433 return TRUE; 1434 for (wp = curtab->tp_first_popupwin; wp != NULL; wp = wp->w_next) 1435 if (wp == win) 1436 return TRUE; 1437 #endif 1438 return FALSE; 1439 } 1440 1441 /* 1442 * Check if "win" is a pointer to an existing window in the current tab page. 1443 */ 1444 int 1445 win_valid(win_T *win) 1446 { 1447 win_T *wp; 1448 1449 if (win == NULL) 1450 return FALSE; 1451 FOR_ALL_WINDOWS(wp) 1452 if (wp == win) 1453 return TRUE; 1454 return win_valid_popup(win); 1455 } 1456 1457 /* 1458 * Check if "win" is a pointer to an existing window in any tab page. 1459 */ 1460 int 1461 win_valid_any_tab(win_T *win) 1462 { 1463 win_T *wp; 1464 tabpage_T *tp; 1465 1466 if (win == NULL) 1467 return FALSE; 1468 FOR_ALL_TABPAGES(tp) 1469 { 1470 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 1471 { 1472 if (wp == win) 1473 return TRUE; 1474 } 1475 #ifdef FEAT_PROP_POPUP 1476 for (wp = tp->tp_first_popupwin; wp != NULL; wp = wp->w_next) 1477 if (wp == win) 1478 return TRUE; 1479 #endif 1480 } 1481 return win_valid_popup(win); 1482 } 1483 1484 /* 1485 * Return the number of windows. 1486 */ 1487 int 1488 win_count(void) 1489 { 1490 win_T *wp; 1491 int count = 0; 1492 1493 FOR_ALL_WINDOWS(wp) 1494 ++count; 1495 return count; 1496 } 1497 1498 /* 1499 * Make "count" windows on the screen. 1500 * Return actual number of windows on the screen. 1501 * Must be called when there is just one window, filling the whole screen 1502 * (excluding the command line). 1503 */ 1504 int 1505 make_windows( 1506 int count, 1507 int vertical UNUSED) // split windows vertically if TRUE 1508 { 1509 int maxcount; 1510 int todo; 1511 1512 if (vertical) 1513 { 1514 // Each windows needs at least 'winminwidth' lines and a separator 1515 // column. 1516 maxcount = (curwin->w_width + curwin->w_vsep_width 1517 - (p_wiw - p_wmw)) / (p_wmw + 1); 1518 } 1519 else 1520 { 1521 // Each window needs at least 'winminheight' lines and a status line. 1522 maxcount = (VISIBLE_HEIGHT(curwin) + curwin->w_status_height 1523 - (p_wh - p_wmh)) / (p_wmh + STATUS_HEIGHT); 1524 } 1525 1526 if (maxcount < 2) 1527 maxcount = 2; 1528 if (count > maxcount) 1529 count = maxcount; 1530 1531 /* 1532 * add status line now, otherwise first window will be too big 1533 */ 1534 if (count > 1) 1535 last_status(TRUE); 1536 1537 /* 1538 * Don't execute autocommands while creating the windows. Must do that 1539 * when putting the buffers in the windows. 1540 */ 1541 block_autocmds(); 1542 1543 // todo is number of windows left to create 1544 for (todo = count - 1; todo > 0; --todo) 1545 if (vertical) 1546 { 1547 if (win_split(curwin->w_width - (curwin->w_width - todo) 1548 / (todo + 1) - 1, WSP_VERT | WSP_ABOVE) == FAIL) 1549 break; 1550 } 1551 else 1552 { 1553 if (win_split(curwin->w_height - (curwin->w_height - todo 1554 * STATUS_HEIGHT) / (todo + 1) 1555 - STATUS_HEIGHT, WSP_ABOVE) == FAIL) 1556 break; 1557 } 1558 1559 unblock_autocmds(); 1560 1561 // return actual number of windows 1562 return (count - todo); 1563 } 1564 1565 /* 1566 * Exchange current and next window 1567 */ 1568 static void 1569 win_exchange(long Prenum) 1570 { 1571 frame_T *frp; 1572 frame_T *frp2; 1573 win_T *wp; 1574 win_T *wp2; 1575 int temp; 1576 1577 if (ERROR_IF_POPUP_WINDOW) 1578 return; 1579 if (ONE_WINDOW) // just one window 1580 { 1581 beep_flush(); 1582 return; 1583 } 1584 1585 #ifdef FEAT_GUI 1586 need_mouse_correct = TRUE; 1587 #endif 1588 1589 /* 1590 * find window to exchange with 1591 */ 1592 if (Prenum) 1593 { 1594 frp = curwin->w_frame->fr_parent->fr_child; 1595 while (frp != NULL && --Prenum > 0) 1596 frp = frp->fr_next; 1597 } 1598 else if (curwin->w_frame->fr_next != NULL) // Swap with next 1599 frp = curwin->w_frame->fr_next; 1600 else // Swap last window in row/col with previous 1601 frp = curwin->w_frame->fr_prev; 1602 1603 // We can only exchange a window with another window, not with a frame 1604 // containing windows. 1605 if (frp == NULL || frp->fr_win == NULL || frp->fr_win == curwin) 1606 return; 1607 wp = frp->fr_win; 1608 1609 /* 1610 * 1. remove curwin from the list. Remember after which window it was in wp2 1611 * 2. insert curwin before wp in the list 1612 * if wp != wp2 1613 * 3. remove wp from the list 1614 * 4. insert wp after wp2 1615 * 5. exchange the status line height and vsep width. 1616 */ 1617 wp2 = curwin->w_prev; 1618 frp2 = curwin->w_frame->fr_prev; 1619 if (wp->w_prev != curwin) 1620 { 1621 win_remove(curwin, NULL); 1622 frame_remove(curwin->w_frame); 1623 win_append(wp->w_prev, curwin); 1624 frame_insert(frp, curwin->w_frame); 1625 } 1626 if (wp != wp2) 1627 { 1628 win_remove(wp, NULL); 1629 frame_remove(wp->w_frame); 1630 win_append(wp2, wp); 1631 if (frp2 == NULL) 1632 frame_insert(wp->w_frame->fr_parent->fr_child, wp->w_frame); 1633 else 1634 frame_append(frp2, wp->w_frame); 1635 } 1636 temp = curwin->w_status_height; 1637 curwin->w_status_height = wp->w_status_height; 1638 wp->w_status_height = temp; 1639 temp = curwin->w_vsep_width; 1640 curwin->w_vsep_width = wp->w_vsep_width; 1641 wp->w_vsep_width = temp; 1642 1643 // If the windows are not in the same frame, exchange the sizes to avoid 1644 // messing up the window layout. Otherwise fix the frame sizes. 1645 if (curwin->w_frame->fr_parent != wp->w_frame->fr_parent) 1646 { 1647 temp = curwin->w_height; 1648 curwin->w_height = wp->w_height; 1649 wp->w_height = temp; 1650 temp = curwin->w_width; 1651 curwin->w_width = wp->w_width; 1652 wp->w_width = temp; 1653 } 1654 else 1655 { 1656 frame_fix_height(curwin); 1657 frame_fix_height(wp); 1658 frame_fix_width(curwin); 1659 frame_fix_width(wp); 1660 } 1661 1662 (void)win_comp_pos(); // recompute window positions 1663 1664 win_enter(wp, TRUE); 1665 redraw_all_later(NOT_VALID); 1666 } 1667 1668 /* 1669 * rotate windows: if upwards TRUE the second window becomes the first one 1670 * if upwards FALSE the first window becomes the second one 1671 */ 1672 static void 1673 win_rotate(int upwards, int count) 1674 { 1675 win_T *wp1; 1676 win_T *wp2; 1677 frame_T *frp; 1678 int n; 1679 1680 if (ONE_WINDOW) // nothing to do 1681 { 1682 beep_flush(); 1683 return; 1684 } 1685 1686 #ifdef FEAT_GUI 1687 need_mouse_correct = TRUE; 1688 #endif 1689 1690 // Check if all frames in this row/col have one window. 1691 FOR_ALL_FRAMES(frp, curwin->w_frame->fr_parent->fr_child) 1692 if (frp->fr_win == NULL) 1693 { 1694 emsg(_("E443: Cannot rotate when another window is split")); 1695 return; 1696 } 1697 1698 while (count--) 1699 { 1700 if (upwards) // first window becomes last window 1701 { 1702 // remove first window/frame from the list 1703 frp = curwin->w_frame->fr_parent->fr_child; 1704 wp1 = frp->fr_win; 1705 win_remove(wp1, NULL); 1706 frame_remove(frp); 1707 1708 // find last frame and append removed window/frame after it 1709 for ( ; frp->fr_next != NULL; frp = frp->fr_next) 1710 ; 1711 win_append(frp->fr_win, wp1); 1712 frame_append(frp, wp1->w_frame); 1713 1714 wp2 = frp->fr_win; // previously last window 1715 } 1716 else // last window becomes first window 1717 { 1718 // find last window/frame in the list and remove it 1719 for (frp = curwin->w_frame; frp->fr_next != NULL; 1720 frp = frp->fr_next) 1721 ; 1722 wp1 = frp->fr_win; 1723 wp2 = wp1->w_prev; // will become last window 1724 win_remove(wp1, NULL); 1725 frame_remove(frp); 1726 1727 // append the removed window/frame before the first in the list 1728 win_append(frp->fr_parent->fr_child->fr_win->w_prev, wp1); 1729 frame_insert(frp->fr_parent->fr_child, frp); 1730 } 1731 1732 // exchange status height and vsep width of old and new last window 1733 n = wp2->w_status_height; 1734 wp2->w_status_height = wp1->w_status_height; 1735 wp1->w_status_height = n; 1736 frame_fix_height(wp1); 1737 frame_fix_height(wp2); 1738 n = wp2->w_vsep_width; 1739 wp2->w_vsep_width = wp1->w_vsep_width; 1740 wp1->w_vsep_width = n; 1741 frame_fix_width(wp1); 1742 frame_fix_width(wp2); 1743 1744 // recompute w_winrow and w_wincol for all windows 1745 (void)win_comp_pos(); 1746 } 1747 1748 redraw_all_later(NOT_VALID); 1749 } 1750 1751 /* 1752 * Move the current window to the very top/bottom/left/right of the screen. 1753 */ 1754 static void 1755 win_totop(int size, int flags) 1756 { 1757 int dir; 1758 int height = curwin->w_height; 1759 1760 if (ONE_WINDOW) 1761 { 1762 beep_flush(); 1763 return; 1764 } 1765 if (check_split_disallowed() == FAIL) 1766 return; 1767 1768 // Remove the window and frame from the tree of frames. 1769 (void)winframe_remove(curwin, &dir, NULL); 1770 win_remove(curwin, NULL); 1771 last_status(FALSE); // may need to remove last status line 1772 (void)win_comp_pos(); // recompute window positions 1773 1774 // Split a window on the desired side and put the window there. 1775 (void)win_split_ins(size, flags, curwin, dir); 1776 if (!(flags & WSP_VERT)) 1777 { 1778 win_setheight(height); 1779 if (p_ea) 1780 win_equal(curwin, TRUE, 'v'); 1781 } 1782 1783 #if defined(FEAT_GUI) 1784 // When 'guioptions' includes 'L' or 'R' may have to remove or add 1785 // scrollbars. Have to update them anyway. 1786 gui_may_update_scrollbars(); 1787 #endif 1788 } 1789 1790 /* 1791 * Move window "win1" to below/right of "win2" and make "win1" the current 1792 * window. Only works within the same frame! 1793 */ 1794 void 1795 win_move_after(win_T *win1, win_T *win2) 1796 { 1797 int height; 1798 1799 // check if the arguments are reasonable 1800 if (win1 == win2) 1801 return; 1802 1803 // check if there is something to do 1804 if (win2->w_next != win1) 1805 { 1806 if (win1->w_frame->fr_parent != win2->w_frame->fr_parent) 1807 { 1808 iemsg("INTERNAL: trying to move a window into another frame"); 1809 return; 1810 } 1811 1812 // may need move the status line/vertical separator of the last window 1813 // 1814 if (win1 == lastwin) 1815 { 1816 height = win1->w_prev->w_status_height; 1817 win1->w_prev->w_status_height = win1->w_status_height; 1818 win1->w_status_height = height; 1819 if (win1->w_prev->w_vsep_width == 1) 1820 { 1821 // Remove the vertical separator from the last-but-one window, 1822 // add it to the last window. Adjust the frame widths. 1823 win1->w_prev->w_vsep_width = 0; 1824 win1->w_prev->w_frame->fr_width -= 1; 1825 win1->w_vsep_width = 1; 1826 win1->w_frame->fr_width += 1; 1827 } 1828 } 1829 else if (win2 == lastwin) 1830 { 1831 height = win1->w_status_height; 1832 win1->w_status_height = win2->w_status_height; 1833 win2->w_status_height = height; 1834 if (win1->w_vsep_width == 1) 1835 { 1836 // Remove the vertical separator from win1, add it to the last 1837 // window, win2. Adjust the frame widths. 1838 win2->w_vsep_width = 1; 1839 win2->w_frame->fr_width += 1; 1840 win1->w_vsep_width = 0; 1841 win1->w_frame->fr_width -= 1; 1842 } 1843 } 1844 win_remove(win1, NULL); 1845 frame_remove(win1->w_frame); 1846 win_append(win2, win1); 1847 frame_append(win2->w_frame, win1->w_frame); 1848 1849 (void)win_comp_pos(); // recompute w_winrow for all windows 1850 redraw_later(NOT_VALID); 1851 } 1852 win_enter(win1, FALSE); 1853 } 1854 1855 /* 1856 * Make all windows the same height. 1857 * 'next_curwin' will soon be the current window, make sure it has enough 1858 * rows. 1859 */ 1860 void 1861 win_equal( 1862 win_T *next_curwin, // pointer to current window to be or NULL 1863 int current, // do only frame with current window 1864 int dir) // 'v' for vertically, 'h' for horizontally, 1865 // 'b' for both, 0 for using p_ead 1866 { 1867 if (dir == 0) 1868 dir = *p_ead; 1869 win_equal_rec(next_curwin == NULL ? curwin : next_curwin, current, 1870 topframe, dir, 0, tabline_height(), 1871 (int)Columns, topframe->fr_height); 1872 } 1873 1874 /* 1875 * Set a frame to a new position and height, spreading the available room 1876 * equally over contained frames. 1877 * The window "next_curwin" (if not NULL) should at least get the size from 1878 * 'winheight' and 'winwidth' if possible. 1879 */ 1880 static void 1881 win_equal_rec( 1882 win_T *next_curwin, // pointer to current window to be or NULL 1883 int current, // do only frame with current window 1884 frame_T *topfr, // frame to set size off 1885 int dir, // 'v', 'h' or 'b', see win_equal() 1886 int col, // horizontal position for frame 1887 int row, // vertical position for frame 1888 int width, // new width of frame 1889 int height) // new height of frame 1890 { 1891 int n, m; 1892 int extra_sep = 0; 1893 int wincount, totwincount = 0; 1894 frame_T *fr; 1895 int next_curwin_size = 0; 1896 int room = 0; 1897 int new_size; 1898 int has_next_curwin = 0; 1899 int hnc; 1900 1901 if (topfr->fr_layout == FR_LEAF) 1902 { 1903 // Set the width/height of this frame. 1904 // Redraw when size or position changes 1905 if (topfr->fr_height != height || topfr->fr_win->w_winrow != row 1906 || topfr->fr_width != width || topfr->fr_win->w_wincol != col 1907 ) 1908 { 1909 topfr->fr_win->w_winrow = row; 1910 frame_new_height(topfr, height, FALSE, FALSE); 1911 topfr->fr_win->w_wincol = col; 1912 frame_new_width(topfr, width, FALSE, FALSE); 1913 redraw_all_later(NOT_VALID); 1914 } 1915 } 1916 else if (topfr->fr_layout == FR_ROW) 1917 { 1918 topfr->fr_width = width; 1919 topfr->fr_height = height; 1920 1921 if (dir != 'v') // equalize frame widths 1922 { 1923 // Compute the maximum number of windows horizontally in this 1924 // frame. 1925 n = frame_minwidth(topfr, NOWIN); 1926 // add one for the rightmost window, it doesn't have a separator 1927 if (col + width == Columns) 1928 extra_sep = 1; 1929 else 1930 extra_sep = 0; 1931 totwincount = (n + extra_sep) / (p_wmw + 1); 1932 has_next_curwin = frame_has_win(topfr, next_curwin); 1933 1934 /* 1935 * Compute width for "next_curwin" window and room available for 1936 * other windows. 1937 * "m" is the minimal width when counting p_wiw for "next_curwin". 1938 */ 1939 m = frame_minwidth(topfr, next_curwin); 1940 room = width - m; 1941 if (room < 0) 1942 { 1943 next_curwin_size = p_wiw + room; 1944 room = 0; 1945 } 1946 else 1947 { 1948 next_curwin_size = -1; 1949 FOR_ALL_FRAMES(fr, topfr->fr_child) 1950 { 1951 // If 'winfixwidth' set keep the window width if 1952 // possible. 1953 // Watch out for this window being the next_curwin. 1954 if (frame_fixed_width(fr)) 1955 { 1956 n = frame_minwidth(fr, NOWIN); 1957 new_size = fr->fr_width; 1958 if (frame_has_win(fr, next_curwin)) 1959 { 1960 room += p_wiw - p_wmw; 1961 next_curwin_size = 0; 1962 if (new_size < p_wiw) 1963 new_size = p_wiw; 1964 } 1965 else 1966 // These windows don't use up room. 1967 totwincount -= (n + (fr->fr_next == NULL 1968 ? extra_sep : 0)) / (p_wmw + 1); 1969 room -= new_size - n; 1970 if (room < 0) 1971 { 1972 new_size += room; 1973 room = 0; 1974 } 1975 fr->fr_newwidth = new_size; 1976 } 1977 } 1978 if (next_curwin_size == -1) 1979 { 1980 if (!has_next_curwin) 1981 next_curwin_size = 0; 1982 else if (totwincount > 1 1983 && (room + (totwincount - 2)) 1984 / (totwincount - 1) > p_wiw) 1985 { 1986 // Can make all windows wider than 'winwidth', spread 1987 // the room equally. 1988 next_curwin_size = (room + p_wiw 1989 + (totwincount - 1) * p_wmw 1990 + (totwincount - 1)) / totwincount; 1991 room -= next_curwin_size - p_wiw; 1992 } 1993 else 1994 next_curwin_size = p_wiw; 1995 } 1996 } 1997 1998 if (has_next_curwin) 1999 --totwincount; // don't count curwin 2000 } 2001 2002 FOR_ALL_FRAMES(fr, topfr->fr_child) 2003 { 2004 wincount = 1; 2005 if (fr->fr_next == NULL) 2006 // last frame gets all that remains (avoid roundoff error) 2007 new_size = width; 2008 else if (dir == 'v') 2009 new_size = fr->fr_width; 2010 else if (frame_fixed_width(fr)) 2011 { 2012 new_size = fr->fr_newwidth; 2013 wincount = 0; // doesn't count as a sizeable window 2014 } 2015 else 2016 { 2017 // Compute the maximum number of windows horiz. in "fr". 2018 n = frame_minwidth(fr, NOWIN); 2019 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 2020 / (p_wmw + 1); 2021 m = frame_minwidth(fr, next_curwin); 2022 if (has_next_curwin) 2023 hnc = frame_has_win(fr, next_curwin); 2024 else 2025 hnc = FALSE; 2026 if (hnc) // don't count next_curwin 2027 --wincount; 2028 if (totwincount == 0) 2029 new_size = room; 2030 else 2031 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 2032 / totwincount; 2033 if (hnc) // add next_curwin size 2034 { 2035 next_curwin_size -= p_wiw - (m - n); 2036 new_size += next_curwin_size; 2037 room -= new_size - next_curwin_size; 2038 } 2039 else 2040 room -= new_size; 2041 new_size += n; 2042 } 2043 2044 // Skip frame that is full width when splitting or closing a 2045 // window, unless equalizing all frames. 2046 if (!current || dir != 'v' || topfr->fr_parent != NULL 2047 || (new_size != fr->fr_width) 2048 || frame_has_win(fr, next_curwin)) 2049 win_equal_rec(next_curwin, current, fr, dir, col, row, 2050 new_size, height); 2051 col += new_size; 2052 width -= new_size; 2053 totwincount -= wincount; 2054 } 2055 } 2056 else // topfr->fr_layout == FR_COL 2057 { 2058 topfr->fr_width = width; 2059 topfr->fr_height = height; 2060 2061 if (dir != 'h') // equalize frame heights 2062 { 2063 // Compute maximum number of windows vertically in this frame. 2064 n = frame_minheight(topfr, NOWIN); 2065 // add one for the bottom window if it doesn't have a statusline 2066 if (row + height == cmdline_row && p_ls == 0) 2067 extra_sep = 1; 2068 else 2069 extra_sep = 0; 2070 totwincount = (n + extra_sep) / (p_wmh + 1); 2071 has_next_curwin = frame_has_win(topfr, next_curwin); 2072 2073 /* 2074 * Compute height for "next_curwin" window and room available for 2075 * other windows. 2076 * "m" is the minimal height when counting p_wh for "next_curwin". 2077 */ 2078 m = frame_minheight(topfr, next_curwin); 2079 room = height - m; 2080 if (room < 0) 2081 { 2082 // The room is less then 'winheight', use all space for the 2083 // current window. 2084 next_curwin_size = p_wh + room; 2085 room = 0; 2086 } 2087 else 2088 { 2089 next_curwin_size = -1; 2090 FOR_ALL_FRAMES(fr, topfr->fr_child) 2091 { 2092 // If 'winfixheight' set keep the window height if 2093 // possible. 2094 // Watch out for this window being the next_curwin. 2095 if (frame_fixed_height(fr)) 2096 { 2097 n = frame_minheight(fr, NOWIN); 2098 new_size = fr->fr_height; 2099 if (frame_has_win(fr, next_curwin)) 2100 { 2101 room += p_wh - p_wmh; 2102 next_curwin_size = 0; 2103 if (new_size < p_wh) 2104 new_size = p_wh; 2105 } 2106 else 2107 // These windows don't use up room. 2108 totwincount -= (n + (fr->fr_next == NULL 2109 ? extra_sep : 0)) / (p_wmh + 1); 2110 room -= new_size - n; 2111 if (room < 0) 2112 { 2113 new_size += room; 2114 room = 0; 2115 } 2116 fr->fr_newheight = new_size; 2117 } 2118 } 2119 if (next_curwin_size == -1) 2120 { 2121 if (!has_next_curwin) 2122 next_curwin_size = 0; 2123 else if (totwincount > 1 2124 && (room + (totwincount - 2)) 2125 / (totwincount - 1) > p_wh) 2126 { 2127 // can make all windows higher than 'winheight', 2128 // spread the room equally. 2129 next_curwin_size = (room + p_wh 2130 + (totwincount - 1) * p_wmh 2131 + (totwincount - 1)) / totwincount; 2132 room -= next_curwin_size - p_wh; 2133 } 2134 else 2135 next_curwin_size = p_wh; 2136 } 2137 } 2138 2139 if (has_next_curwin) 2140 --totwincount; // don't count curwin 2141 } 2142 2143 FOR_ALL_FRAMES(fr, topfr->fr_child) 2144 { 2145 wincount = 1; 2146 if (fr->fr_next == NULL) 2147 // last frame gets all that remains (avoid roundoff error) 2148 new_size = height; 2149 else if (dir == 'h') 2150 new_size = fr->fr_height; 2151 else if (frame_fixed_height(fr)) 2152 { 2153 new_size = fr->fr_newheight; 2154 wincount = 0; // doesn't count as a sizeable window 2155 } 2156 else 2157 { 2158 // Compute the maximum number of windows vert. in "fr". 2159 n = frame_minheight(fr, NOWIN); 2160 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 2161 / (p_wmh + 1); 2162 m = frame_minheight(fr, next_curwin); 2163 if (has_next_curwin) 2164 hnc = frame_has_win(fr, next_curwin); 2165 else 2166 hnc = FALSE; 2167 if (hnc) // don't count next_curwin 2168 --wincount; 2169 if (totwincount == 0) 2170 new_size = room; 2171 else 2172 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 2173 / totwincount; 2174 if (hnc) // add next_curwin size 2175 { 2176 next_curwin_size -= p_wh - (m - n); 2177 new_size += next_curwin_size; 2178 room -= new_size - next_curwin_size; 2179 } 2180 else 2181 room -= new_size; 2182 new_size += n; 2183 } 2184 // Skip frame that is full width when splitting or closing a 2185 // window, unless equalizing all frames. 2186 if (!current || dir != 'h' || topfr->fr_parent != NULL 2187 || (new_size != fr->fr_height) 2188 || frame_has_win(fr, next_curwin)) 2189 win_equal_rec(next_curwin, current, fr, dir, col, row, 2190 width, new_size); 2191 row += new_size; 2192 height -= new_size; 2193 totwincount -= wincount; 2194 } 2195 } 2196 } 2197 2198 #ifdef FEAT_JOB_CHANNEL 2199 static void 2200 leaving_window(win_T *win) 2201 { 2202 // Only matters for a prompt window. 2203 if (!bt_prompt(win->w_buffer)) 2204 return; 2205 2206 // When leaving a prompt window stop Insert mode and perhaps restart 2207 // it when entering that window again. 2208 win->w_buffer->b_prompt_insert = restart_edit; 2209 if (restart_edit != 0 && mode_displayed) 2210 clear_cmdline = TRUE; // unshow mode later 2211 restart_edit = NUL; 2212 2213 // When leaving the window (or closing the window) was done from a 2214 // callback we need to break out of the Insert mode loop and restart Insert 2215 // mode when entering the window again. 2216 if (State & INSERT) 2217 { 2218 stop_insert_mode = TRUE; 2219 if (win->w_buffer->b_prompt_insert == NUL) 2220 win->w_buffer->b_prompt_insert = 'A'; 2221 } 2222 } 2223 2224 static void 2225 entering_window(win_T *win) 2226 { 2227 // Only matters for a prompt window. 2228 if (!bt_prompt(win->w_buffer)) 2229 return; 2230 2231 // When switching to a prompt buffer that was in Insert mode, don't stop 2232 // Insert mode, it may have been set in leaving_window(). 2233 if (win->w_buffer->b_prompt_insert != NUL) 2234 stop_insert_mode = FALSE; 2235 2236 // When entering the prompt window restart Insert mode if we were in Insert 2237 // mode when we left it. 2238 restart_edit = win->w_buffer->b_prompt_insert; 2239 } 2240 #endif 2241 2242 /* 2243 * Close all windows for buffer "buf". 2244 */ 2245 void 2246 close_windows( 2247 buf_T *buf, 2248 int keep_curwin) // don't close "curwin" 2249 { 2250 win_T *wp; 2251 tabpage_T *tp, *nexttp; 2252 int h = tabline_height(); 2253 int count = tabpage_index(NULL); 2254 2255 ++RedrawingDisabled; 2256 2257 for (wp = firstwin; wp != NULL && !ONE_WINDOW; ) 2258 { 2259 if (wp->w_buffer == buf && (!keep_curwin || wp != curwin) 2260 && !(wp->w_closing || wp->w_buffer->b_locked > 0)) 2261 { 2262 if (win_close(wp, FALSE) == FAIL) 2263 // If closing the window fails give up, to avoid looping 2264 // forever. 2265 break; 2266 2267 // Start all over, autocommands may change the window layout. 2268 wp = firstwin; 2269 } 2270 else 2271 wp = wp->w_next; 2272 } 2273 2274 // Also check windows in other tab pages. 2275 for (tp = first_tabpage; tp != NULL; tp = nexttp) 2276 { 2277 nexttp = tp->tp_next; 2278 if (tp != curtab) 2279 for (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next) 2280 if (wp->w_buffer == buf 2281 && !(wp->w_closing || wp->w_buffer->b_locked > 0)) 2282 { 2283 win_close_othertab(wp, FALSE, tp); 2284 2285 // Start all over, the tab page may be closed and 2286 // autocommands may change the window layout. 2287 nexttp = first_tabpage; 2288 break; 2289 } 2290 } 2291 2292 --RedrawingDisabled; 2293 2294 if (count != tabpage_index(NULL)) 2295 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2296 2297 redraw_tabline = TRUE; 2298 if (h != tabline_height()) 2299 shell_new_rows(); 2300 } 2301 2302 /* 2303 * Return TRUE if the current window is the only window that exists (ignoring 2304 * "aucmd_win"). 2305 * Returns FALSE if there is a window, possibly in another tab page. 2306 */ 2307 static int 2308 last_window(void) 2309 { 2310 return (one_window() && first_tabpage->tp_next == NULL); 2311 } 2312 2313 /* 2314 * Return TRUE if there is only one window other than "aucmd_win" in the 2315 * current tab page. 2316 */ 2317 int 2318 one_window(void) 2319 { 2320 win_T *wp; 2321 int seen_one = FALSE; 2322 2323 FOR_ALL_WINDOWS(wp) 2324 { 2325 if (wp != aucmd_win) 2326 { 2327 if (seen_one) 2328 return FALSE; 2329 seen_one = TRUE; 2330 } 2331 } 2332 return TRUE; 2333 } 2334 2335 /* 2336 * Close the possibly last window in a tab page. 2337 * Returns TRUE when the window was closed already. 2338 */ 2339 static int 2340 close_last_window_tabpage( 2341 win_T *win, 2342 int free_buf, 2343 tabpage_T *prev_curtab) 2344 { 2345 if (ONE_WINDOW) 2346 { 2347 buf_T *old_curbuf = curbuf; 2348 2349 /* 2350 * Closing the last window in a tab page. First go to another tab 2351 * page and then close the window and the tab page. This avoids that 2352 * curwin and curtab are invalid while we are freeing memory, they may 2353 * be used in GUI events. 2354 * Don't trigger autocommands yet, they may use wrong values, so do 2355 * that below. 2356 */ 2357 goto_tabpage_tp(alt_tabpage(), FALSE, TRUE); 2358 redraw_tabline = TRUE; 2359 2360 // Safety check: Autocommands may have closed the window when jumping 2361 // to the other tab page. 2362 if (valid_tabpage(prev_curtab) && prev_curtab->tp_firstwin == win) 2363 { 2364 int h = tabline_height(); 2365 2366 win_close_othertab(win, free_buf, prev_curtab); 2367 if (h != tabline_height()) 2368 shell_new_rows(); 2369 } 2370 #ifdef FEAT_JOB_CHANNEL 2371 entering_window(curwin); 2372 #endif 2373 // Since goto_tabpage_tp above did not trigger *Enter autocommands, do 2374 // that now. 2375 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2376 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 2377 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 2378 if (old_curbuf != curbuf) 2379 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2380 return TRUE; 2381 } 2382 return FALSE; 2383 } 2384 2385 /* 2386 * Close the buffer of "win" and unload it if "action" is DOBUF_UNLOAD. 2387 * "action" can also be zero (do nothing) or DOBUF_WIPE. 2388 * "abort_if_last" is passed to close_buffer(): abort closing if all other 2389 * windows are closed. 2390 */ 2391 static void 2392 win_close_buffer(win_T *win, int action, int abort_if_last) 2393 { 2394 #ifdef FEAT_SYN_HL 2395 // Free independent synblock before the buffer is freed. 2396 if (win->w_buffer != NULL) 2397 reset_synblock(win); 2398 #endif 2399 2400 #ifdef FEAT_QUICKFIX 2401 // When the quickfix/location list window is closed, unlist the buffer. 2402 if (win->w_buffer != NULL && bt_quickfix(win->w_buffer)) 2403 win->w_buffer->b_p_bl = FALSE; 2404 #endif 2405 2406 // Close the link to the buffer. 2407 if (win->w_buffer != NULL) 2408 { 2409 bufref_T bufref; 2410 2411 set_bufref(&bufref, curbuf); 2412 win->w_closing = TRUE; 2413 close_buffer(win, win->w_buffer, action, abort_if_last, FALSE); 2414 if (win_valid_any_tab(win)) 2415 win->w_closing = FALSE; 2416 // Make sure curbuf is valid. It can become invalid if 'bufhidden' is 2417 // "wipe". 2418 if (!bufref_valid(&bufref)) 2419 curbuf = firstbuf; 2420 } 2421 } 2422 2423 /* 2424 * Close window "win". Only works for the current tab page. 2425 * If "free_buf" is TRUE related buffer may be unloaded. 2426 * 2427 * Called by :quit, :close, :xit, :wq and findtag(). 2428 * Returns FAIL when the window was not closed. 2429 */ 2430 int 2431 win_close(win_T *win, int free_buf) 2432 { 2433 win_T *wp; 2434 int other_buffer = FALSE; 2435 int close_curwin = FALSE; 2436 int dir; 2437 int help_window = FALSE; 2438 tabpage_T *prev_curtab = curtab; 2439 frame_T *win_frame = win->w_frame->fr_parent; 2440 #ifdef FEAT_DIFF 2441 int had_diffmode = win->w_p_diff; 2442 #endif 2443 2444 if (ERROR_IF_POPUP_WINDOW) 2445 return FAIL; 2446 2447 if (last_window()) 2448 { 2449 emsg(_("E444: Cannot close last window")); 2450 return FAIL; 2451 } 2452 2453 if (win->w_closing || (win->w_buffer != NULL 2454 && win->w_buffer->b_locked > 0)) 2455 return FAIL; // window is already being closed 2456 if (win_unlisted(win)) 2457 { 2458 emsg(_("E813: Cannot close autocmd or popup window")); 2459 return FAIL; 2460 } 2461 if ((firstwin == aucmd_win || lastwin == aucmd_win) && one_window()) 2462 { 2463 emsg(_("E814: Cannot close window, only autocmd window would remain")); 2464 return FAIL; 2465 } 2466 2467 // When closing the last window in a tab page first go to another tab page 2468 // and then close the window and the tab page to avoid that curwin and 2469 // curtab are invalid while we are freeing memory. 2470 if (close_last_window_tabpage(win, free_buf, prev_curtab)) 2471 return FAIL; 2472 2473 // When closing the help window, try restoring a snapshot after closing 2474 // the window. Otherwise clear the snapshot, it's now invalid. 2475 if (bt_help(win->w_buffer)) 2476 help_window = TRUE; 2477 else 2478 clear_snapshot(curtab, SNAP_HELP_IDX); 2479 2480 if (win == curwin) 2481 { 2482 #ifdef FEAT_JOB_CHANNEL 2483 leaving_window(curwin); 2484 #endif 2485 /* 2486 * Guess which window is going to be the new current window. 2487 * This may change because of the autocommands (sigh). 2488 */ 2489 wp = frame2win(win_altframe(win, NULL)); 2490 2491 /* 2492 * Be careful: If autocommands delete the window or cause this window 2493 * to be the last one left, return now. 2494 */ 2495 if (wp->w_buffer != curbuf) 2496 { 2497 other_buffer = TRUE; 2498 win->w_closing = TRUE; 2499 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 2500 if (!win_valid(win)) 2501 return FAIL; 2502 win->w_closing = FALSE; 2503 if (last_window()) 2504 return FAIL; 2505 } 2506 win->w_closing = TRUE; 2507 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 2508 if (!win_valid(win)) 2509 return FAIL; 2510 win->w_closing = FALSE; 2511 if (last_window()) 2512 return FAIL; 2513 #ifdef FEAT_EVAL 2514 // autocmds may abort script processing 2515 if (aborting()) 2516 return FAIL; 2517 #endif 2518 } 2519 2520 #ifdef FEAT_GUI 2521 // Avoid trouble with scrollbars that are going to be deleted in 2522 // win_free(). 2523 if (gui.in_use) 2524 out_flush(); 2525 #endif 2526 2527 #ifdef FEAT_PROP_POPUP 2528 if (popup_win_closed(win) && !win_valid(win)) 2529 return FAIL; 2530 #endif 2531 win_close_buffer(win, free_buf ? DOBUF_UNLOAD : 0, TRUE); 2532 2533 if (only_one_window() && win_valid(win) && win->w_buffer == NULL 2534 && (last_window() || curtab != prev_curtab 2535 || close_last_window_tabpage(win, free_buf, prev_curtab))) 2536 { 2537 // Autocommands have closed all windows, quit now. Restore 2538 // curwin->w_buffer, otherwise writing viminfo may fail. 2539 if (curwin->w_buffer == NULL) 2540 curwin->w_buffer = curbuf; 2541 getout(0); 2542 } 2543 2544 // Autocommands may have moved to another tab page. 2545 if (curtab != prev_curtab && win_valid_any_tab(win) 2546 && win->w_buffer == NULL) 2547 { 2548 // Need to close the window anyway, since the buffer is NULL. 2549 win_close_othertab(win, FALSE, prev_curtab); 2550 return FAIL; 2551 } 2552 2553 // Autocommands may have closed the window already or closed the only 2554 // other window. 2555 if (!win_valid(win) || last_window() 2556 || close_last_window_tabpage(win, free_buf, prev_curtab)) 2557 return FAIL; 2558 2559 // Now we are really going to close the window. Disallow any autocommand 2560 // to split a window to avoid trouble. 2561 ++split_disallowed; 2562 2563 // Free the memory used for the window and get the window that received 2564 // the screen space. 2565 wp = win_free_mem(win, &dir, NULL); 2566 2567 // Make sure curwin isn't invalid. It can cause severe trouble when 2568 // printing an error message. For win_equal() curbuf needs to be valid 2569 // too. 2570 if (win == curwin) 2571 { 2572 curwin = wp; 2573 #ifdef FEAT_QUICKFIX 2574 if (wp->w_p_pvw || bt_quickfix(wp->w_buffer)) 2575 { 2576 /* 2577 * If the cursor goes to the preview or the quickfix window, try 2578 * finding another window to go to. 2579 */ 2580 for (;;) 2581 { 2582 if (wp->w_next == NULL) 2583 wp = firstwin; 2584 else 2585 wp = wp->w_next; 2586 if (wp == curwin) 2587 break; 2588 if (!wp->w_p_pvw && !bt_quickfix(wp->w_buffer)) 2589 { 2590 curwin = wp; 2591 break; 2592 } 2593 } 2594 } 2595 #endif 2596 curbuf = curwin->w_buffer; 2597 close_curwin = TRUE; 2598 2599 // The cursor position may be invalid if the buffer changed after last 2600 // using the window. 2601 check_cursor(); 2602 } 2603 if (p_ea && (*p_ead == 'b' || *p_ead == dir)) 2604 // If the frame of the closed window contains the new current window, 2605 // only resize that frame. Otherwise resize all windows. 2606 win_equal(curwin, curwin->w_frame->fr_parent == win_frame, dir); 2607 else 2608 win_comp_pos(); 2609 if (close_curwin) 2610 { 2611 win_enter_ext(wp, FALSE, TRUE, FALSE, TRUE, TRUE); 2612 if (other_buffer) 2613 // careful: after this wp and win may be invalid! 2614 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2615 } 2616 2617 --split_disallowed; 2618 2619 /* 2620 * If last window has a status line now and we don't want one, 2621 * remove the status line. 2622 */ 2623 last_status(FALSE); 2624 2625 // After closing the help window, try restoring the window layout from 2626 // before it was opened. 2627 if (help_window) 2628 restore_snapshot(SNAP_HELP_IDX, close_curwin); 2629 2630 #ifdef FEAT_DIFF 2631 // If the window had 'diff' set and now there is only one window left in 2632 // the tab page with 'diff' set, and "closeoff" is in 'diffopt', then 2633 // execute ":diffoff!". 2634 if (diffopt_closeoff() && had_diffmode && curtab == prev_curtab) 2635 { 2636 int diffcount = 0; 2637 win_T *dwin; 2638 2639 FOR_ALL_WINDOWS(dwin) 2640 if (dwin->w_p_diff) 2641 ++diffcount; 2642 if (diffcount == 1) 2643 do_cmdline_cmd((char_u *)"diffoff!"); 2644 } 2645 #endif 2646 2647 #if defined(FEAT_GUI) 2648 // When 'guioptions' includes 'L' or 'R' may have to remove scrollbars. 2649 if (gui.in_use && !win_hasvertsplit()) 2650 gui_init_which_components(NULL); 2651 #endif 2652 2653 redraw_all_later(NOT_VALID); 2654 return OK; 2655 } 2656 2657 /* 2658 * Close window "win" in tab page "tp", which is not the current tab page. 2659 * This may be the last window in that tab page and result in closing the tab, 2660 * thus "tp" may become invalid! 2661 * Caller must check if buffer is hidden and whether the tabline needs to be 2662 * updated. 2663 */ 2664 void 2665 win_close_othertab(win_T *win, int free_buf, tabpage_T *tp) 2666 { 2667 win_T *wp; 2668 int dir; 2669 tabpage_T *ptp = NULL; 2670 int free_tp = FALSE; 2671 2672 // Get here with win->w_buffer == NULL when win_close() detects the tab 2673 // page changed. 2674 if (win->w_closing || (win->w_buffer != NULL 2675 && win->w_buffer->b_locked > 0)) 2676 return; // window is already being closed 2677 2678 if (win->w_buffer != NULL) 2679 // Close the link to the buffer. 2680 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, 2681 FALSE, FALSE); 2682 2683 // Careful: Autocommands may have closed the tab page or made it the 2684 // current tab page. 2685 for (ptp = first_tabpage; ptp != NULL && ptp != tp; ptp = ptp->tp_next) 2686 ; 2687 if (ptp == NULL || tp == curtab) 2688 return; 2689 2690 // Autocommands may have closed the window already. 2691 for (wp = tp->tp_firstwin; wp != NULL && wp != win; wp = wp->w_next) 2692 ; 2693 if (wp == NULL) 2694 return; 2695 2696 // When closing the last window in a tab page remove the tab page. 2697 if (tp->tp_firstwin == tp->tp_lastwin) 2698 { 2699 if (tp == first_tabpage) 2700 first_tabpage = tp->tp_next; 2701 else 2702 { 2703 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tp; 2704 ptp = ptp->tp_next) 2705 ; 2706 if (ptp == NULL) 2707 { 2708 internal_error("win_close_othertab()"); 2709 return; 2710 } 2711 ptp->tp_next = tp->tp_next; 2712 } 2713 free_tp = TRUE; 2714 } 2715 2716 // Free the memory used for the window. 2717 win_free_mem(win, &dir, tp); 2718 2719 if (free_tp) 2720 free_tabpage(tp); 2721 } 2722 2723 /* 2724 * Free the memory used for a window. 2725 * Returns a pointer to the window that got the freed up space. 2726 */ 2727 static win_T * 2728 win_free_mem( 2729 win_T *win, 2730 int *dirp, // set to 'v' or 'h' for direction if 'ea' 2731 tabpage_T *tp) // tab page "win" is in, NULL for current 2732 { 2733 frame_T *frp; 2734 win_T *wp; 2735 2736 // Remove the window and its frame from the tree of frames. 2737 frp = win->w_frame; 2738 wp = winframe_remove(win, dirp, tp); 2739 vim_free(frp); 2740 win_free(win, tp); 2741 2742 // When deleting the current window of another tab page select a new 2743 // current window. 2744 if (tp != NULL && win == tp->tp_curwin) 2745 tp->tp_curwin = wp; 2746 2747 return wp; 2748 } 2749 2750 #if defined(EXITFREE) || defined(PROTO) 2751 void 2752 win_free_all(void) 2753 { 2754 int dummy; 2755 2756 while (first_tabpage->tp_next != NULL) 2757 tabpage_close(TRUE); 2758 2759 if (aucmd_win != NULL) 2760 { 2761 (void)win_free_mem(aucmd_win, &dummy, NULL); 2762 aucmd_win = NULL; 2763 } 2764 # ifdef FEAT_PROP_POPUP 2765 close_all_popups(); 2766 # endif 2767 2768 while (firstwin != NULL) 2769 (void)win_free_mem(firstwin, &dummy, NULL); 2770 2771 // No window should be used after this. Set curwin to NULL to crash 2772 // instead of using freed memory. 2773 curwin = NULL; 2774 } 2775 #endif 2776 2777 /* 2778 * Remove a window and its frame from the tree of frames. 2779 * Returns a pointer to the window that got the freed up space. 2780 */ 2781 win_T * 2782 winframe_remove( 2783 win_T *win, 2784 int *dirp UNUSED, // set to 'v' or 'h' for direction if 'ea' 2785 tabpage_T *tp) // tab page "win" is in, NULL for current 2786 { 2787 frame_T *frp, *frp2, *frp3; 2788 frame_T *frp_close = win->w_frame; 2789 win_T *wp; 2790 2791 /* 2792 * If there is only one window there is nothing to remove. 2793 */ 2794 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 2795 return NULL; 2796 2797 /* 2798 * Remove the window from its frame. 2799 */ 2800 frp2 = win_altframe(win, tp); 2801 wp = frame2win(frp2); 2802 2803 // Remove this frame from the list of frames. 2804 frame_remove(frp_close); 2805 2806 if (frp_close->fr_parent->fr_layout == FR_COL) 2807 { 2808 // When 'winfixheight' is set, try to find another frame in the column 2809 // (as close to the closed frame as possible) to distribute the height 2810 // to. 2811 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfh) 2812 { 2813 frp = frp_close->fr_prev; 2814 frp3 = frp_close->fr_next; 2815 while (frp != NULL || frp3 != NULL) 2816 { 2817 if (frp != NULL) 2818 { 2819 if (!frame_fixed_height(frp)) 2820 { 2821 frp2 = frp; 2822 wp = frame2win(frp2); 2823 break; 2824 } 2825 frp = frp->fr_prev; 2826 } 2827 if (frp3 != NULL) 2828 { 2829 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfh) 2830 { 2831 frp2 = frp3; 2832 wp = frp3->fr_win; 2833 break; 2834 } 2835 frp3 = frp3->fr_next; 2836 } 2837 } 2838 } 2839 frame_new_height(frp2, frp2->fr_height + frp_close->fr_height, 2840 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2841 *dirp = 'v'; 2842 } 2843 else 2844 { 2845 // When 'winfixwidth' is set, try to find another frame in the column 2846 // (as close to the closed frame as possible) to distribute the width 2847 // to. 2848 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfw) 2849 { 2850 frp = frp_close->fr_prev; 2851 frp3 = frp_close->fr_next; 2852 while (frp != NULL || frp3 != NULL) 2853 { 2854 if (frp != NULL) 2855 { 2856 if (!frame_fixed_width(frp)) 2857 { 2858 frp2 = frp; 2859 wp = frame2win(frp2); 2860 break; 2861 } 2862 frp = frp->fr_prev; 2863 } 2864 if (frp3 != NULL) 2865 { 2866 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfw) 2867 { 2868 frp2 = frp3; 2869 wp = frp3->fr_win; 2870 break; 2871 } 2872 frp3 = frp3->fr_next; 2873 } 2874 } 2875 } 2876 frame_new_width(frp2, frp2->fr_width + frp_close->fr_width, 2877 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2878 *dirp = 'h'; 2879 } 2880 2881 // If rows/columns go to a window below/right its positions need to be 2882 // updated. Can only be done after the sizes have been updated. 2883 if (frp2 == frp_close->fr_next) 2884 { 2885 int row = win->w_winrow; 2886 int col = win->w_wincol; 2887 2888 frame_comp_pos(frp2, &row, &col); 2889 } 2890 2891 if (frp2->fr_next == NULL && frp2->fr_prev == NULL) 2892 { 2893 // There is no other frame in this list, move its info to the parent 2894 // and remove it. 2895 frp2->fr_parent->fr_layout = frp2->fr_layout; 2896 frp2->fr_parent->fr_child = frp2->fr_child; 2897 FOR_ALL_FRAMES(frp, frp2->fr_child) 2898 frp->fr_parent = frp2->fr_parent; 2899 frp2->fr_parent->fr_win = frp2->fr_win; 2900 if (frp2->fr_win != NULL) 2901 frp2->fr_win->w_frame = frp2->fr_parent; 2902 frp = frp2->fr_parent; 2903 if (topframe->fr_child == frp2) 2904 topframe->fr_child = frp; 2905 vim_free(frp2); 2906 2907 frp2 = frp->fr_parent; 2908 if (frp2 != NULL && frp2->fr_layout == frp->fr_layout) 2909 { 2910 // The frame above the parent has the same layout, have to merge 2911 // the frames into this list. 2912 if (frp2->fr_child == frp) 2913 frp2->fr_child = frp->fr_child; 2914 frp->fr_child->fr_prev = frp->fr_prev; 2915 if (frp->fr_prev != NULL) 2916 frp->fr_prev->fr_next = frp->fr_child; 2917 for (frp3 = frp->fr_child; ; frp3 = frp3->fr_next) 2918 { 2919 frp3->fr_parent = frp2; 2920 if (frp3->fr_next == NULL) 2921 { 2922 frp3->fr_next = frp->fr_next; 2923 if (frp->fr_next != NULL) 2924 frp->fr_next->fr_prev = frp3; 2925 break; 2926 } 2927 } 2928 if (topframe->fr_child == frp) 2929 topframe->fr_child = frp2; 2930 vim_free(frp); 2931 } 2932 } 2933 2934 return wp; 2935 } 2936 2937 /* 2938 * Return a pointer to the frame that will receive the empty screen space that 2939 * is left over after "win" is closed. 2940 * 2941 * If 'splitbelow' or 'splitright' is set, the space goes above or to the left 2942 * by default. Otherwise, the free space goes below or to the right. The 2943 * result is that opening a window and then immediately closing it will 2944 * preserve the initial window layout. The 'wfh' and 'wfw' settings are 2945 * respected when possible. 2946 */ 2947 static frame_T * 2948 win_altframe( 2949 win_T *win, 2950 tabpage_T *tp) // tab page "win" is in, NULL for current 2951 { 2952 frame_T *frp; 2953 frame_T *other_fr, *target_fr; 2954 2955 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 2956 return alt_tabpage()->tp_curwin->w_frame; 2957 2958 frp = win->w_frame; 2959 2960 if (frp->fr_prev == NULL) 2961 return frp->fr_next; 2962 if (frp->fr_next == NULL) 2963 return frp->fr_prev; 2964 2965 target_fr = frp->fr_next; 2966 other_fr = frp->fr_prev; 2967 if (p_spr || p_sb) 2968 { 2969 target_fr = frp->fr_prev; 2970 other_fr = frp->fr_next; 2971 } 2972 2973 // If 'wfh' or 'wfw' is set for the target and not for the alternate 2974 // window, reverse the selection. 2975 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW) 2976 { 2977 if (frame_fixed_width(target_fr) && !frame_fixed_width(other_fr)) 2978 target_fr = other_fr; 2979 } 2980 else 2981 { 2982 if (frame_fixed_height(target_fr) && !frame_fixed_height(other_fr)) 2983 target_fr = other_fr; 2984 } 2985 2986 return target_fr; 2987 } 2988 2989 /* 2990 * Return the tabpage that will be used if the current one is closed. 2991 */ 2992 static tabpage_T * 2993 alt_tabpage(void) 2994 { 2995 tabpage_T *tp; 2996 2997 // Use the next tab page if possible. 2998 if (curtab->tp_next != NULL) 2999 return curtab->tp_next; 3000 3001 // Find the last but one tab page. 3002 for (tp = first_tabpage; tp->tp_next != curtab; tp = tp->tp_next) 3003 ; 3004 return tp; 3005 } 3006 3007 /* 3008 * Find the left-upper window in frame "frp". 3009 */ 3010 static win_T * 3011 frame2win(frame_T *frp) 3012 { 3013 while (frp->fr_win == NULL) 3014 frp = frp->fr_child; 3015 return frp->fr_win; 3016 } 3017 3018 /* 3019 * Return TRUE if frame "frp" contains window "wp". 3020 */ 3021 static int 3022 frame_has_win(frame_T *frp, win_T *wp) 3023 { 3024 frame_T *p; 3025 3026 if (frp->fr_layout == FR_LEAF) 3027 return frp->fr_win == wp; 3028 3029 FOR_ALL_FRAMES(p, frp->fr_child) 3030 if (frame_has_win(p, wp)) 3031 return TRUE; 3032 return FALSE; 3033 } 3034 3035 /* 3036 * Set a new height for a frame. Recursively sets the height for contained 3037 * frames and windows. Caller must take care of positions. 3038 */ 3039 static void 3040 frame_new_height( 3041 frame_T *topfrp, 3042 int height, 3043 int topfirst, // resize topmost contained frame first 3044 int wfh) // obey 'winfixheight' when there is a choice; 3045 // may cause the height not to be set 3046 { 3047 frame_T *frp; 3048 int extra_lines; 3049 int h; 3050 3051 if (topfrp->fr_win != NULL) 3052 { 3053 // Simple case: just one window. 3054 win_new_height(topfrp->fr_win, 3055 height - topfrp->fr_win->w_status_height 3056 - WINBAR_HEIGHT(topfrp->fr_win)); 3057 } 3058 else if (topfrp->fr_layout == FR_ROW) 3059 { 3060 do 3061 { 3062 // All frames in this row get the same new height. 3063 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3064 { 3065 frame_new_height(frp, height, topfirst, wfh); 3066 if (frp->fr_height > height) 3067 { 3068 // Could not fit the windows, make the whole row higher. 3069 height = frp->fr_height; 3070 break; 3071 } 3072 } 3073 } 3074 while (frp != NULL); 3075 } 3076 else // fr_layout == FR_COL 3077 { 3078 // Complicated case: Resize a column of frames. Resize the bottom 3079 // frame first, frames above that when needed. 3080 3081 frp = topfrp->fr_child; 3082 if (wfh) 3083 // Advance past frames with one window with 'wfh' set. 3084 while (frame_fixed_height(frp)) 3085 { 3086 frp = frp->fr_next; 3087 if (frp == NULL) 3088 return; // no frame without 'wfh', give up 3089 } 3090 if (!topfirst) 3091 { 3092 // Find the bottom frame of this column 3093 while (frp->fr_next != NULL) 3094 frp = frp->fr_next; 3095 if (wfh) 3096 // Advance back for frames with one window with 'wfh' set. 3097 while (frame_fixed_height(frp)) 3098 frp = frp->fr_prev; 3099 } 3100 3101 extra_lines = height - topfrp->fr_height; 3102 if (extra_lines < 0) 3103 { 3104 // reduce height of contained frames, bottom or top frame first 3105 while (frp != NULL) 3106 { 3107 h = frame_minheight(frp, NULL); 3108 if (frp->fr_height + extra_lines < h) 3109 { 3110 extra_lines += frp->fr_height - h; 3111 frame_new_height(frp, h, topfirst, wfh); 3112 } 3113 else 3114 { 3115 frame_new_height(frp, frp->fr_height + extra_lines, 3116 topfirst, wfh); 3117 break; 3118 } 3119 if (topfirst) 3120 { 3121 do 3122 frp = frp->fr_next; 3123 while (wfh && frp != NULL && frame_fixed_height(frp)); 3124 } 3125 else 3126 { 3127 do 3128 frp = frp->fr_prev; 3129 while (wfh && frp != NULL && frame_fixed_height(frp)); 3130 } 3131 // Increase "height" if we could not reduce enough frames. 3132 if (frp == NULL) 3133 height -= extra_lines; 3134 } 3135 } 3136 else if (extra_lines > 0) 3137 { 3138 // increase height of bottom or top frame 3139 frame_new_height(frp, frp->fr_height + extra_lines, topfirst, wfh); 3140 } 3141 } 3142 topfrp->fr_height = height; 3143 } 3144 3145 /* 3146 * Return TRUE if height of frame "frp" should not be changed because of 3147 * the 'winfixheight' option. 3148 */ 3149 static int 3150 frame_fixed_height(frame_T *frp) 3151 { 3152 // frame with one window: fixed height if 'winfixheight' set. 3153 if (frp->fr_win != NULL) 3154 return frp->fr_win->w_p_wfh; 3155 3156 if (frp->fr_layout == FR_ROW) 3157 { 3158 // The frame is fixed height if one of the frames in the row is fixed 3159 // height. 3160 FOR_ALL_FRAMES(frp, frp->fr_child) 3161 if (frame_fixed_height(frp)) 3162 return TRUE; 3163 return FALSE; 3164 } 3165 3166 // frp->fr_layout == FR_COL: The frame is fixed height if all of the 3167 // frames in the row are fixed height. 3168 FOR_ALL_FRAMES(frp, frp->fr_child) 3169 if (!frame_fixed_height(frp)) 3170 return FALSE; 3171 return TRUE; 3172 } 3173 3174 /* 3175 * Return TRUE if width of frame "frp" should not be changed because of 3176 * the 'winfixwidth' option. 3177 */ 3178 static int 3179 frame_fixed_width(frame_T *frp) 3180 { 3181 // frame with one window: fixed width if 'winfixwidth' set. 3182 if (frp->fr_win != NULL) 3183 return frp->fr_win->w_p_wfw; 3184 3185 if (frp->fr_layout == FR_COL) 3186 { 3187 // The frame is fixed width if one of the frames in the row is fixed 3188 // width. 3189 FOR_ALL_FRAMES(frp, frp->fr_child) 3190 if (frame_fixed_width(frp)) 3191 return TRUE; 3192 return FALSE; 3193 } 3194 3195 // frp->fr_layout == FR_ROW: The frame is fixed width if all of the 3196 // frames in the row are fixed width. 3197 FOR_ALL_FRAMES(frp, frp->fr_child) 3198 if (!frame_fixed_width(frp)) 3199 return FALSE; 3200 return TRUE; 3201 } 3202 3203 /* 3204 * Add a status line to windows at the bottom of "frp". 3205 * Note: Does not check if there is room! 3206 */ 3207 static void 3208 frame_add_statusline(frame_T *frp) 3209 { 3210 win_T *wp; 3211 3212 if (frp->fr_layout == FR_LEAF) 3213 { 3214 wp = frp->fr_win; 3215 if (wp->w_status_height == 0) 3216 { 3217 if (wp->w_height > 0) // don't make it negative 3218 --wp->w_height; 3219 wp->w_status_height = STATUS_HEIGHT; 3220 } 3221 } 3222 else if (frp->fr_layout == FR_ROW) 3223 { 3224 // Handle all the frames in the row. 3225 FOR_ALL_FRAMES(frp, frp->fr_child) 3226 frame_add_statusline(frp); 3227 } 3228 else // frp->fr_layout == FR_COL 3229 { 3230 // Only need to handle the last frame in the column. 3231 for (frp = frp->fr_child; frp->fr_next != NULL; frp = frp->fr_next) 3232 ; 3233 frame_add_statusline(frp); 3234 } 3235 } 3236 3237 /* 3238 * Set width of a frame. Handles recursively going through contained frames. 3239 * May remove separator line for windows at the right side (for win_close()). 3240 */ 3241 static void 3242 frame_new_width( 3243 frame_T *topfrp, 3244 int width, 3245 int leftfirst, // resize leftmost contained frame first 3246 int wfw) // obey 'winfixwidth' when there is a choice; 3247 // may cause the width not to be set 3248 { 3249 frame_T *frp; 3250 int extra_cols; 3251 int w; 3252 win_T *wp; 3253 3254 if (topfrp->fr_layout == FR_LEAF) 3255 { 3256 // Simple case: just one window. 3257 wp = topfrp->fr_win; 3258 // Find out if there are any windows right of this one. 3259 for (frp = topfrp; frp->fr_parent != NULL; frp = frp->fr_parent) 3260 if (frp->fr_parent->fr_layout == FR_ROW && frp->fr_next != NULL) 3261 break; 3262 if (frp->fr_parent == NULL) 3263 wp->w_vsep_width = 0; 3264 win_new_width(wp, width - wp->w_vsep_width); 3265 } 3266 else if (topfrp->fr_layout == FR_COL) 3267 { 3268 do 3269 { 3270 // All frames in this column get the same new width. 3271 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3272 { 3273 frame_new_width(frp, width, leftfirst, wfw); 3274 if (frp->fr_width > width) 3275 { 3276 // Could not fit the windows, make whole column wider. 3277 width = frp->fr_width; 3278 break; 3279 } 3280 } 3281 } while (frp != NULL); 3282 } 3283 else // fr_layout == FR_ROW 3284 { 3285 // Complicated case: Resize a row of frames. Resize the rightmost 3286 // frame first, frames left of it when needed. 3287 3288 frp = topfrp->fr_child; 3289 if (wfw) 3290 // Advance past frames with one window with 'wfw' set. 3291 while (frame_fixed_width(frp)) 3292 { 3293 frp = frp->fr_next; 3294 if (frp == NULL) 3295 return; // no frame without 'wfw', give up 3296 } 3297 if (!leftfirst) 3298 { 3299 // Find the rightmost frame of this row 3300 while (frp->fr_next != NULL) 3301 frp = frp->fr_next; 3302 if (wfw) 3303 // Advance back for frames with one window with 'wfw' set. 3304 while (frame_fixed_width(frp)) 3305 frp = frp->fr_prev; 3306 } 3307 3308 extra_cols = width - topfrp->fr_width; 3309 if (extra_cols < 0) 3310 { 3311 // reduce frame width, rightmost frame first 3312 while (frp != NULL) 3313 { 3314 w = frame_minwidth(frp, NULL); 3315 if (frp->fr_width + extra_cols < w) 3316 { 3317 extra_cols += frp->fr_width - w; 3318 frame_new_width(frp, w, leftfirst, wfw); 3319 } 3320 else 3321 { 3322 frame_new_width(frp, frp->fr_width + extra_cols, 3323 leftfirst, wfw); 3324 break; 3325 } 3326 if (leftfirst) 3327 { 3328 do 3329 frp = frp->fr_next; 3330 while (wfw && frp != NULL && frame_fixed_width(frp)); 3331 } 3332 else 3333 { 3334 do 3335 frp = frp->fr_prev; 3336 while (wfw && frp != NULL && frame_fixed_width(frp)); 3337 } 3338 // Increase "width" if we could not reduce enough frames. 3339 if (frp == NULL) 3340 width -= extra_cols; 3341 } 3342 } 3343 else if (extra_cols > 0) 3344 { 3345 // increase width of rightmost frame 3346 frame_new_width(frp, frp->fr_width + extra_cols, leftfirst, wfw); 3347 } 3348 } 3349 topfrp->fr_width = width; 3350 } 3351 3352 /* 3353 * Add the vertical separator to windows at the right side of "frp". 3354 * Note: Does not check if there is room! 3355 */ 3356 static void 3357 frame_add_vsep(frame_T *frp) 3358 { 3359 win_T *wp; 3360 3361 if (frp->fr_layout == FR_LEAF) 3362 { 3363 wp = frp->fr_win; 3364 if (wp->w_vsep_width == 0) 3365 { 3366 if (wp->w_width > 0) // don't make it negative 3367 --wp->w_width; 3368 wp->w_vsep_width = 1; 3369 } 3370 } 3371 else if (frp->fr_layout == FR_COL) 3372 { 3373 // Handle all the frames in the column. 3374 FOR_ALL_FRAMES(frp, frp->fr_child) 3375 frame_add_vsep(frp); 3376 } 3377 else // frp->fr_layout == FR_ROW 3378 { 3379 // Only need to handle the last frame in the row. 3380 frp = frp->fr_child; 3381 while (frp->fr_next != NULL) 3382 frp = frp->fr_next; 3383 frame_add_vsep(frp); 3384 } 3385 } 3386 3387 /* 3388 * Set frame width from the window it contains. 3389 */ 3390 static void 3391 frame_fix_width(win_T *wp) 3392 { 3393 wp->w_frame->fr_width = wp->w_width + wp->w_vsep_width; 3394 } 3395 3396 /* 3397 * Set frame height from the window it contains. 3398 */ 3399 static void 3400 frame_fix_height(win_T *wp) 3401 { 3402 wp->w_frame->fr_height = VISIBLE_HEIGHT(wp) + wp->w_status_height; 3403 } 3404 3405 /* 3406 * Compute the minimal height for frame "topfrp". 3407 * Uses the 'winminheight' option. 3408 * When "next_curwin" isn't NULL, use p_wh for this window. 3409 * When "next_curwin" is NOWIN, don't use at least one line for the current 3410 * window. 3411 */ 3412 static int 3413 frame_minheight(frame_T *topfrp, win_T *next_curwin) 3414 { 3415 frame_T *frp; 3416 int m; 3417 int n; 3418 3419 if (topfrp->fr_win != NULL) 3420 { 3421 if (topfrp->fr_win == next_curwin) 3422 m = p_wh + topfrp->fr_win->w_status_height; 3423 else 3424 { 3425 // window: minimal height of the window plus status line 3426 m = p_wmh + topfrp->fr_win->w_status_height; 3427 if (topfrp->fr_win == curwin && next_curwin == NULL) 3428 { 3429 // Current window is minimal one line high and WinBar is 3430 // visible. 3431 if (p_wmh == 0) 3432 ++m; 3433 m += WINBAR_HEIGHT(curwin); 3434 } 3435 } 3436 } 3437 else if (topfrp->fr_layout == FR_ROW) 3438 { 3439 // get the minimal height from each frame in this row 3440 m = 0; 3441 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3442 { 3443 n = frame_minheight(frp, next_curwin); 3444 if (n > m) 3445 m = n; 3446 } 3447 } 3448 else 3449 { 3450 // Add up the minimal heights for all frames in this column. 3451 m = 0; 3452 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3453 m += frame_minheight(frp, next_curwin); 3454 } 3455 3456 return m; 3457 } 3458 3459 /* 3460 * Compute the minimal width for frame "topfrp". 3461 * When "next_curwin" isn't NULL, use p_wiw for this window. 3462 * When "next_curwin" is NOWIN, don't use at least one column for the current 3463 * window. 3464 */ 3465 static int 3466 frame_minwidth( 3467 frame_T *topfrp, 3468 win_T *next_curwin) // use p_wh and p_wiw for next_curwin 3469 { 3470 frame_T *frp; 3471 int m, n; 3472 3473 if (topfrp->fr_win != NULL) 3474 { 3475 if (topfrp->fr_win == next_curwin) 3476 m = p_wiw + topfrp->fr_win->w_vsep_width; 3477 else 3478 { 3479 // window: minimal width of the window plus separator column 3480 m = p_wmw + topfrp->fr_win->w_vsep_width; 3481 // Current window is minimal one column wide 3482 if (p_wmw == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3483 ++m; 3484 } 3485 } 3486 else if (topfrp->fr_layout == FR_COL) 3487 { 3488 // get the minimal width from each frame in this column 3489 m = 0; 3490 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3491 { 3492 n = frame_minwidth(frp, next_curwin); 3493 if (n > m) 3494 m = n; 3495 } 3496 } 3497 else 3498 { 3499 // Add up the minimal widths for all frames in this row. 3500 m = 0; 3501 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3502 m += frame_minwidth(frp, next_curwin); 3503 } 3504 3505 return m; 3506 } 3507 3508 3509 /* 3510 * Try to close all windows except current one. 3511 * Buffers in the other windows become hidden if 'hidden' is set, or '!' is 3512 * used and the buffer was modified. 3513 * 3514 * Used by ":bdel" and ":only". 3515 */ 3516 void 3517 close_others( 3518 int message, 3519 int forceit) // always hide all other windows 3520 { 3521 win_T *wp; 3522 win_T *nextwp; 3523 int r; 3524 3525 if (one_window()) 3526 { 3527 if (message && !autocmd_busy) 3528 msg(_(m_onlyone)); 3529 return; 3530 } 3531 3532 // Be very careful here: autocommands may change the window layout. 3533 for (wp = firstwin; win_valid(wp); wp = nextwp) 3534 { 3535 nextwp = wp->w_next; 3536 if (wp != curwin) // don't close current window 3537 { 3538 3539 // Check if it's allowed to abandon this window 3540 r = can_abandon(wp->w_buffer, forceit); 3541 if (!win_valid(wp)) // autocommands messed wp up 3542 { 3543 nextwp = firstwin; 3544 continue; 3545 } 3546 if (!r) 3547 { 3548 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 3549 if (message && (p_confirm || cmdmod.confirm) && p_write) 3550 { 3551 dialog_changed(wp->w_buffer, FALSE); 3552 if (!win_valid(wp)) // autocommands messed wp up 3553 { 3554 nextwp = firstwin; 3555 continue; 3556 } 3557 } 3558 if (bufIsChanged(wp->w_buffer)) 3559 #endif 3560 continue; 3561 } 3562 win_close(wp, !buf_hide(wp->w_buffer) 3563 && !bufIsChanged(wp->w_buffer)); 3564 } 3565 } 3566 3567 if (message && !ONE_WINDOW) 3568 emsg(_("E445: Other window contains changes")); 3569 } 3570 3571 static void 3572 win_init_empty(win_T *wp) 3573 { 3574 redraw_win_later(wp, NOT_VALID); 3575 wp->w_lines_valid = 0; 3576 wp->w_cursor.lnum = 1; 3577 wp->w_curswant = wp->w_cursor.col = 0; 3578 wp->w_cursor.coladd = 0; 3579 wp->w_pcmark.lnum = 1; // pcmark not cleared but set to line 1 3580 wp->w_pcmark.col = 0; 3581 wp->w_prev_pcmark.lnum = 0; 3582 wp->w_prev_pcmark.col = 0; 3583 wp->w_topline = 1; 3584 #ifdef FEAT_DIFF 3585 wp->w_topfill = 0; 3586 #endif 3587 wp->w_botline = 2; 3588 #if defined(FEAT_SYN_HL) || defined(FEAT_SPELL) 3589 wp->w_s = &wp->w_buffer->b_s; 3590 #endif 3591 } 3592 3593 /* 3594 * Init the current window "curwin". 3595 * Called when a new file is being edited. 3596 */ 3597 void 3598 curwin_init(void) 3599 { 3600 win_init_empty(curwin); 3601 } 3602 3603 /* 3604 * Allocate the first window and put an empty buffer in it. 3605 * Called from main(). 3606 * Return FAIL when something goes wrong (out of memory). 3607 */ 3608 int 3609 win_alloc_first(void) 3610 { 3611 if (win_alloc_firstwin(NULL) == FAIL) 3612 return FAIL; 3613 3614 first_tabpage = alloc_tabpage(); 3615 if (first_tabpage == NULL) 3616 return FAIL; 3617 first_tabpage->tp_topframe = topframe; 3618 curtab = first_tabpage; 3619 3620 return OK; 3621 } 3622 3623 /* 3624 * Allocate and init a window that is not a regular window. 3625 * This can only be done after the first window is fully initialized, thus it 3626 * can't be in win_alloc_first(). 3627 */ 3628 win_T * 3629 win_alloc_popup_win(void) 3630 { 3631 win_T *wp; 3632 3633 wp = win_alloc(NULL, TRUE); 3634 if (wp != NULL) 3635 { 3636 // We need to initialize options with something, using the current 3637 // window makes most sense. 3638 win_init_some(wp, curwin); 3639 3640 RESET_BINDING(wp); 3641 new_frame(wp); 3642 } 3643 return wp; 3644 } 3645 3646 /* 3647 * Initialize window "wp" to display buffer "buf". 3648 */ 3649 void 3650 win_init_popup_win(win_T *wp, buf_T *buf) 3651 { 3652 wp->w_buffer = buf; 3653 ++buf->b_nwindows; 3654 win_init_empty(wp); // set cursor and topline to safe values 3655 3656 // Make sure w_localdir and globaldir are NULL to avoid a chdir() in 3657 // win_enter_ext(). 3658 VIM_CLEAR(wp->w_localdir); 3659 } 3660 3661 /* 3662 * Allocate the first window or the first window in a new tab page. 3663 * When "oldwin" is NULL create an empty buffer for it. 3664 * When "oldwin" is not NULL copy info from it to the new window. 3665 * Return FAIL when something goes wrong (out of memory). 3666 */ 3667 static int 3668 win_alloc_firstwin(win_T *oldwin) 3669 { 3670 curwin = win_alloc(NULL, FALSE); 3671 if (oldwin == NULL) 3672 { 3673 // Very first window, need to create an empty buffer for it and 3674 // initialize from scratch. 3675 curbuf = buflist_new(NULL, NULL, 1L, BLN_LISTED); 3676 if (curwin == NULL || curbuf == NULL) 3677 return FAIL; 3678 curwin->w_buffer = curbuf; 3679 #ifdef FEAT_SYN_HL 3680 curwin->w_s = &(curbuf->b_s); 3681 #endif 3682 curbuf->b_nwindows = 1; // there is one window 3683 curwin->w_alist = &global_alist; 3684 curwin_init(); // init current window 3685 } 3686 else 3687 { 3688 // First window in new tab page, initialize it from "oldwin". 3689 win_init(curwin, oldwin, 0); 3690 3691 // We don't want cursor- and scroll-binding in the first window. 3692 RESET_BINDING(curwin); 3693 } 3694 3695 new_frame(curwin); 3696 if (curwin->w_frame == NULL) 3697 return FAIL; 3698 topframe = curwin->w_frame; 3699 topframe->fr_width = Columns; 3700 topframe->fr_height = Rows - p_ch; 3701 3702 return OK; 3703 } 3704 3705 /* 3706 * Create a frame for window "wp". 3707 */ 3708 static void 3709 new_frame(win_T *wp) 3710 { 3711 frame_T *frp = ALLOC_CLEAR_ONE(frame_T); 3712 3713 wp->w_frame = frp; 3714 if (frp != NULL) 3715 { 3716 frp->fr_layout = FR_LEAF; 3717 frp->fr_win = wp; 3718 } 3719 } 3720 3721 /* 3722 * Initialize the window and frame size to the maximum. 3723 */ 3724 void 3725 win_init_size(void) 3726 { 3727 firstwin->w_height = ROWS_AVAIL; 3728 topframe->fr_height = ROWS_AVAIL; 3729 firstwin->w_width = Columns; 3730 topframe->fr_width = Columns; 3731 } 3732 3733 /* 3734 * Allocate a new tabpage_T and init the values. 3735 * Returns NULL when out of memory. 3736 */ 3737 static tabpage_T * 3738 alloc_tabpage(void) 3739 { 3740 tabpage_T *tp; 3741 # ifdef FEAT_GUI 3742 int i; 3743 # endif 3744 3745 3746 tp = ALLOC_CLEAR_ONE(tabpage_T); 3747 if (tp == NULL) 3748 return NULL; 3749 3750 # ifdef FEAT_EVAL 3751 // init t: variables 3752 tp->tp_vars = dict_alloc(); 3753 if (tp->tp_vars == NULL) 3754 { 3755 vim_free(tp); 3756 return NULL; 3757 } 3758 init_var_dict(tp->tp_vars, &tp->tp_winvar, VAR_SCOPE); 3759 # endif 3760 3761 # ifdef FEAT_GUI 3762 for (i = 0; i < 3; i++) 3763 tp->tp_prev_which_scrollbars[i] = -1; 3764 # endif 3765 # ifdef FEAT_DIFF 3766 tp->tp_diff_invalid = TRUE; 3767 # endif 3768 tp->tp_ch_used = p_ch; 3769 3770 return tp; 3771 } 3772 3773 void 3774 free_tabpage(tabpage_T *tp) 3775 { 3776 int idx; 3777 3778 # ifdef FEAT_DIFF 3779 diff_clear(tp); 3780 # endif 3781 # ifdef FEAT_PROP_POPUP 3782 while (tp->tp_first_popupwin != NULL) 3783 popup_close_tabpage(tp, tp->tp_first_popupwin->w_id); 3784 #endif 3785 for (idx = 0; idx < SNAP_COUNT; ++idx) 3786 clear_snapshot(tp, idx); 3787 #ifdef FEAT_EVAL 3788 vars_clear(&tp->tp_vars->dv_hashtab); // free all t: variables 3789 hash_init(&tp->tp_vars->dv_hashtab); 3790 unref_var_dict(tp->tp_vars); 3791 #endif 3792 3793 vim_free(tp->tp_localdir); 3794 3795 #ifdef FEAT_PYTHON 3796 python_tabpage_free(tp); 3797 #endif 3798 3799 #ifdef FEAT_PYTHON3 3800 python3_tabpage_free(tp); 3801 #endif 3802 3803 vim_free(tp); 3804 } 3805 3806 /* 3807 * Create a new Tab page with one window. 3808 * It will edit the current buffer, like after ":split". 3809 * When "after" is 0 put it just after the current Tab page. 3810 * Otherwise put it just before tab page "after". 3811 * Return FAIL or OK. 3812 */ 3813 int 3814 win_new_tabpage(int after) 3815 { 3816 tabpage_T *tp = curtab; 3817 tabpage_T *newtp; 3818 int n; 3819 3820 newtp = alloc_tabpage(); 3821 if (newtp == NULL) 3822 return FAIL; 3823 3824 // Remember the current windows in this Tab page. 3825 if (leave_tabpage(curbuf, TRUE) == FAIL) 3826 { 3827 vim_free(newtp); 3828 return FAIL; 3829 } 3830 curtab = newtp; 3831 3832 newtp->tp_localdir = (tp->tp_localdir == NULL) 3833 ? NULL : vim_strsave(tp->tp_localdir); 3834 // Create a new empty window. 3835 if (win_alloc_firstwin(tp->tp_curwin) == OK) 3836 { 3837 // Make the new Tab page the new topframe. 3838 if (after == 1) 3839 { 3840 // New tab page becomes the first one. 3841 newtp->tp_next = first_tabpage; 3842 first_tabpage = newtp; 3843 } 3844 else 3845 { 3846 if (after > 0) 3847 { 3848 // Put new tab page before tab page "after". 3849 n = 2; 3850 for (tp = first_tabpage; tp->tp_next != NULL 3851 && n < after; tp = tp->tp_next) 3852 ++n; 3853 } 3854 newtp->tp_next = tp->tp_next; 3855 tp->tp_next = newtp; 3856 } 3857 win_init_size(); 3858 firstwin->w_winrow = tabline_height(); 3859 win_comp_scroll(curwin); 3860 3861 newtp->tp_topframe = topframe; 3862 last_status(FALSE); 3863 3864 #if defined(FEAT_GUI) 3865 // When 'guioptions' includes 'L' or 'R' may have to remove or add 3866 // scrollbars. Have to update them anyway. 3867 gui_may_update_scrollbars(); 3868 #endif 3869 #ifdef FEAT_JOB_CHANNEL 3870 entering_window(curwin); 3871 #endif 3872 3873 redraw_all_later(NOT_VALID); 3874 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 3875 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 3876 apply_autocmds(EVENT_TABNEW, NULL, NULL, FALSE, curbuf); 3877 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3878 return OK; 3879 } 3880 3881 // Failed, get back the previous Tab page 3882 enter_tabpage(curtab, curbuf, TRUE, TRUE); 3883 return FAIL; 3884 } 3885 3886 /* 3887 * Open a new tab page if ":tab cmd" was used. It will edit the same buffer, 3888 * like with ":split". 3889 * Returns OK if a new tab page was created, FAIL otherwise. 3890 */ 3891 static int 3892 may_open_tabpage(void) 3893 { 3894 int n = (cmdmod.tab == 0) ? postponed_split_tab : cmdmod.tab; 3895 3896 if (n != 0) 3897 { 3898 cmdmod.tab = 0; // reset it to avoid doing it twice 3899 postponed_split_tab = 0; 3900 return win_new_tabpage(n); 3901 } 3902 return FAIL; 3903 } 3904 3905 /* 3906 * Create up to "maxcount" tabpages with empty windows. 3907 * Returns the number of resulting tab pages. 3908 */ 3909 int 3910 make_tabpages(int maxcount) 3911 { 3912 int count = maxcount; 3913 int todo; 3914 3915 // Limit to 'tabpagemax' tabs. 3916 if (count > p_tpm) 3917 count = p_tpm; 3918 3919 /* 3920 * Don't execute autocommands while creating the tab pages. Must do that 3921 * when putting the buffers in the windows. 3922 */ 3923 block_autocmds(); 3924 3925 for (todo = count - 1; todo > 0; --todo) 3926 if (win_new_tabpage(0) == FAIL) 3927 break; 3928 3929 unblock_autocmds(); 3930 3931 // return actual number of tab pages 3932 return (count - todo); 3933 } 3934 3935 /* 3936 * Return TRUE when "tpc" points to a valid tab page. 3937 */ 3938 int 3939 valid_tabpage(tabpage_T *tpc) 3940 { 3941 tabpage_T *tp; 3942 3943 FOR_ALL_TABPAGES(tp) 3944 if (tp == tpc) 3945 return TRUE; 3946 return FALSE; 3947 } 3948 3949 /* 3950 * Return TRUE when "tpc" points to a valid tab page and at least one window is 3951 * valid. 3952 */ 3953 int 3954 valid_tabpage_win(tabpage_T *tpc) 3955 { 3956 tabpage_T *tp; 3957 win_T *wp; 3958 3959 FOR_ALL_TABPAGES(tp) 3960 { 3961 if (tp == tpc) 3962 { 3963 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 3964 { 3965 if (win_valid_any_tab(wp)) 3966 return TRUE; 3967 } 3968 return FALSE; 3969 } 3970 } 3971 // shouldn't happen 3972 return FALSE; 3973 } 3974 3975 /* 3976 * Close tabpage "tab", assuming it has no windows in it. 3977 * There must be another tabpage or this will crash. 3978 */ 3979 void 3980 close_tabpage(tabpage_T *tab) 3981 { 3982 tabpage_T *ptp; 3983 3984 if (tab == first_tabpage) 3985 { 3986 first_tabpage = tab->tp_next; 3987 ptp = first_tabpage; 3988 } 3989 else 3990 { 3991 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tab; 3992 ptp = ptp->tp_next) 3993 ; 3994 assert(ptp != NULL); 3995 ptp->tp_next = tab->tp_next; 3996 } 3997 3998 goto_tabpage_tp(ptp, FALSE, FALSE); 3999 free_tabpage(tab); 4000 } 4001 4002 /* 4003 * Find tab page "n" (first one is 1). Returns NULL when not found. 4004 */ 4005 tabpage_T * 4006 find_tabpage(int n) 4007 { 4008 tabpage_T *tp; 4009 int i = 1; 4010 4011 if (n == 0) 4012 return curtab; 4013 4014 for (tp = first_tabpage; tp != NULL && i != n; tp = tp->tp_next) 4015 ++i; 4016 return tp; 4017 } 4018 4019 /* 4020 * Get index of tab page "tp". First one has index 1. 4021 * When not found returns number of tab pages plus one. 4022 */ 4023 int 4024 tabpage_index(tabpage_T *ftp) 4025 { 4026 int i = 1; 4027 tabpage_T *tp; 4028 4029 for (tp = first_tabpage; tp != NULL && tp != ftp; tp = tp->tp_next) 4030 ++i; 4031 return i; 4032 } 4033 4034 /* 4035 * Prepare for leaving the current tab page. 4036 * When autocommands change "curtab" we don't leave the tab page and return 4037 * FAIL. 4038 * Careful: When OK is returned need to get a new tab page very very soon! 4039 */ 4040 static int 4041 leave_tabpage( 4042 buf_T *new_curbuf UNUSED, // what is going to be the new curbuf, 4043 // NULL if unknown 4044 int trigger_leave_autocmds UNUSED) 4045 { 4046 tabpage_T *tp = curtab; 4047 4048 #ifdef FEAT_JOB_CHANNEL 4049 leaving_window(curwin); 4050 #endif 4051 reset_VIsual_and_resel(); // stop Visual mode 4052 if (trigger_leave_autocmds) 4053 { 4054 if (new_curbuf != curbuf) 4055 { 4056 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4057 if (curtab != tp) 4058 return FAIL; 4059 } 4060 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4061 if (curtab != tp) 4062 return FAIL; 4063 apply_autocmds(EVENT_TABLEAVE, NULL, NULL, FALSE, curbuf); 4064 if (curtab != tp) 4065 return FAIL; 4066 } 4067 #if defined(FEAT_GUI) 4068 // Remove the scrollbars. They may be added back later. 4069 if (gui.in_use) 4070 gui_remove_scrollbars(); 4071 #endif 4072 tp->tp_curwin = curwin; 4073 tp->tp_prevwin = prevwin; 4074 tp->tp_firstwin = firstwin; 4075 tp->tp_lastwin = lastwin; 4076 tp->tp_old_Rows = Rows; 4077 tp->tp_old_Columns = Columns; 4078 firstwin = NULL; 4079 lastwin = NULL; 4080 return OK; 4081 } 4082 4083 /* 4084 * Start using tab page "tp". 4085 * Only to be used after leave_tabpage() or freeing the current tab page. 4086 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4087 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4088 */ 4089 static void 4090 enter_tabpage( 4091 tabpage_T *tp, 4092 buf_T *old_curbuf UNUSED, 4093 int trigger_enter_autocmds, 4094 int trigger_leave_autocmds) 4095 { 4096 int old_off = tp->tp_firstwin->w_winrow; 4097 win_T *next_prevwin = tp->tp_prevwin; 4098 4099 curtab = tp; 4100 firstwin = tp->tp_firstwin; 4101 lastwin = tp->tp_lastwin; 4102 topframe = tp->tp_topframe; 4103 4104 // We would like doing the TabEnter event first, but we don't have a 4105 // valid current window yet, which may break some commands. 4106 // This triggers autocommands, thus may make "tp" invalid. 4107 win_enter_ext(tp->tp_curwin, FALSE, TRUE, FALSE, 4108 trigger_enter_autocmds, trigger_leave_autocmds); 4109 prevwin = next_prevwin; 4110 4111 last_status(FALSE); // status line may appear or disappear 4112 (void)win_comp_pos(); // recompute w_winrow for all windows 4113 #ifdef FEAT_DIFF 4114 diff_need_scrollbind = TRUE; 4115 #endif 4116 4117 // The tabpage line may have appeared or disappeared, may need to resize 4118 // the frames for that. When the Vim window was resized need to update 4119 // frame sizes too. Use the stored value of p_ch, so that it can be 4120 // different for each tab page. 4121 if (p_ch != curtab->tp_ch_used) 4122 clear_cmdline = TRUE; 4123 p_ch = curtab->tp_ch_used; 4124 if (curtab->tp_old_Rows != Rows || (old_off != firstwin->w_winrow 4125 #ifdef FEAT_GUI_TABLINE 4126 && !gui_use_tabline() 4127 #endif 4128 )) 4129 shell_new_rows(); 4130 if (curtab->tp_old_Columns != Columns && starting == 0) 4131 shell_new_columns(); // update window widths 4132 4133 #if defined(FEAT_GUI) 4134 // When 'guioptions' includes 'L' or 'R' may have to remove or add 4135 // scrollbars. Have to update them anyway. 4136 gui_may_update_scrollbars(); 4137 #endif 4138 4139 // Apply autocommands after updating the display, when 'rows' and 4140 // 'columns' have been set correctly. 4141 if (trigger_enter_autocmds) 4142 { 4143 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 4144 if (old_curbuf != curbuf) 4145 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4146 } 4147 4148 redraw_all_later(NOT_VALID); 4149 } 4150 4151 /* 4152 * Go to tab page "n". For ":tab N" and "Ngt". 4153 * When "n" is 9999 go to the last tab page. 4154 */ 4155 void 4156 goto_tabpage(int n) 4157 { 4158 tabpage_T *tp = NULL; // shut up compiler 4159 tabpage_T *ttp; 4160 int i; 4161 4162 if (text_locked()) 4163 { 4164 // Not allowed when editing the command line. 4165 text_locked_msg(); 4166 return; 4167 } 4168 4169 // If there is only one it can't work. 4170 if (first_tabpage->tp_next == NULL) 4171 { 4172 if (n > 1) 4173 beep_flush(); 4174 return; 4175 } 4176 4177 if (n == 0) 4178 { 4179 // No count, go to next tab page, wrap around end. 4180 if (curtab->tp_next == NULL) 4181 tp = first_tabpage; 4182 else 4183 tp = curtab->tp_next; 4184 } 4185 else if (n < 0) 4186 { 4187 // "gT": go to previous tab page, wrap around end. "N gT" repeats 4188 // this N times. 4189 ttp = curtab; 4190 for (i = n; i < 0; ++i) 4191 { 4192 for (tp = first_tabpage; tp->tp_next != ttp && tp->tp_next != NULL; 4193 tp = tp->tp_next) 4194 ; 4195 ttp = tp; 4196 } 4197 } 4198 else if (n == 9999) 4199 { 4200 // Go to last tab page. 4201 for (tp = first_tabpage; tp->tp_next != NULL; tp = tp->tp_next) 4202 ; 4203 } 4204 else 4205 { 4206 // Go to tab page "n". 4207 tp = find_tabpage(n); 4208 if (tp == NULL) 4209 { 4210 beep_flush(); 4211 return; 4212 } 4213 } 4214 4215 goto_tabpage_tp(tp, TRUE, TRUE); 4216 4217 #ifdef FEAT_GUI_TABLINE 4218 if (gui_use_tabline()) 4219 gui_mch_set_curtab(tabpage_index(curtab)); 4220 #endif 4221 } 4222 4223 /* 4224 * Go to tabpage "tp". 4225 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4226 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4227 * Note: doesn't update the GUI tab. 4228 */ 4229 void 4230 goto_tabpage_tp( 4231 tabpage_T *tp, 4232 int trigger_enter_autocmds, 4233 int trigger_leave_autocmds) 4234 { 4235 // Don't repeat a message in another tab page. 4236 set_keep_msg(NULL, 0); 4237 4238 if (tp != curtab && leave_tabpage(tp->tp_curwin->w_buffer, 4239 trigger_leave_autocmds) == OK) 4240 { 4241 if (valid_tabpage(tp)) 4242 enter_tabpage(tp, curbuf, trigger_enter_autocmds, 4243 trigger_leave_autocmds); 4244 else 4245 enter_tabpage(curtab, curbuf, trigger_enter_autocmds, 4246 trigger_leave_autocmds); 4247 } 4248 } 4249 4250 /* 4251 * Enter window "wp" in tab page "tp". 4252 * Also updates the GUI tab. 4253 */ 4254 void 4255 goto_tabpage_win(tabpage_T *tp, win_T *wp) 4256 { 4257 goto_tabpage_tp(tp, TRUE, TRUE); 4258 if (curtab == tp && win_valid(wp)) 4259 { 4260 win_enter(wp, TRUE); 4261 # ifdef FEAT_GUI_TABLINE 4262 if (gui_use_tabline()) 4263 gui_mch_set_curtab(tabpage_index(curtab)); 4264 # endif 4265 } 4266 } 4267 4268 /* 4269 * Move the current tab page to after tab page "nr". 4270 */ 4271 void 4272 tabpage_move(int nr) 4273 { 4274 int n = 1; 4275 tabpage_T *tp, *tp_dst; 4276 4277 if (first_tabpage->tp_next == NULL) 4278 return; 4279 4280 for (tp = first_tabpage; tp->tp_next != NULL && n < nr; tp = tp->tp_next) 4281 ++n; 4282 4283 if (tp == curtab || (nr > 0 && tp->tp_next != NULL 4284 && tp->tp_next == curtab)) 4285 return; 4286 4287 tp_dst = tp; 4288 4289 // Remove the current tab page from the list of tab pages. 4290 if (curtab == first_tabpage) 4291 first_tabpage = curtab->tp_next; 4292 else 4293 { 4294 FOR_ALL_TABPAGES(tp) 4295 if (tp->tp_next == curtab) 4296 break; 4297 if (tp == NULL) // "cannot happen" 4298 return; 4299 tp->tp_next = curtab->tp_next; 4300 } 4301 4302 // Re-insert it at the specified position. 4303 if (nr <= 0) 4304 { 4305 curtab->tp_next = first_tabpage; 4306 first_tabpage = curtab; 4307 } 4308 else 4309 { 4310 curtab->tp_next = tp_dst->tp_next; 4311 tp_dst->tp_next = curtab; 4312 } 4313 4314 // Need to redraw the tabline. Tab page contents doesn't change. 4315 redraw_tabline = TRUE; 4316 } 4317 4318 4319 /* 4320 * Go to another window. 4321 * When jumping to another buffer, stop Visual mode. Do this before 4322 * changing windows so we can yank the selection into the '*' register. 4323 * When jumping to another window on the same buffer, adjust its cursor 4324 * position to keep the same Visual area. 4325 */ 4326 void 4327 win_goto(win_T *wp) 4328 { 4329 #ifdef FEAT_CONCEAL 4330 win_T *owp = curwin; 4331 #endif 4332 4333 if (ERROR_IF_POPUP_WINDOW) 4334 return; 4335 if (text_locked()) 4336 { 4337 beep_flush(); 4338 text_locked_msg(); 4339 return; 4340 } 4341 if (curbuf_locked()) 4342 return; 4343 4344 if (wp->w_buffer != curbuf) 4345 reset_VIsual_and_resel(); 4346 else if (VIsual_active) 4347 wp->w_cursor = curwin->w_cursor; 4348 4349 #ifdef FEAT_GUI 4350 need_mouse_correct = TRUE; 4351 #endif 4352 win_enter(wp, TRUE); 4353 4354 #ifdef FEAT_CONCEAL 4355 // Conceal cursor line in previous window, unconceal in current window. 4356 if (win_valid(owp) && owp->w_p_cole > 0 && !msg_scrolled) 4357 redrawWinline(owp, owp->w_cursor.lnum); 4358 if (curwin->w_p_cole > 0 && !msg_scrolled) 4359 need_cursor_line_redraw = TRUE; 4360 #endif 4361 } 4362 4363 #if defined(FEAT_PERL) || defined(PROTO) 4364 /* 4365 * Find window number "winnr" (counting top to bottom). 4366 */ 4367 win_T * 4368 win_find_nr(int winnr) 4369 { 4370 win_T *wp; 4371 4372 FOR_ALL_WINDOWS(wp) 4373 if (--winnr == 0) 4374 break; 4375 return wp; 4376 } 4377 #endif 4378 4379 #if ((defined(FEAT_PYTHON) || defined(FEAT_PYTHON3))) || defined(PROTO) 4380 /* 4381 * Find the tabpage for window "win". 4382 */ 4383 tabpage_T * 4384 win_find_tabpage(win_T *win) 4385 { 4386 win_T *wp; 4387 tabpage_T *tp; 4388 4389 FOR_ALL_TAB_WINDOWS(tp, wp) 4390 if (wp == win) 4391 return tp; 4392 return NULL; 4393 } 4394 #endif 4395 4396 /* 4397 * Get the above or below neighbor window of the specified window. 4398 * up - TRUE for the above neighbor 4399 * count - nth neighbor window 4400 * Returns the specified window if the neighbor is not found. 4401 */ 4402 win_T * 4403 win_vert_neighbor(tabpage_T *tp, win_T *wp, int up, long count) 4404 { 4405 frame_T *fr; 4406 frame_T *nfr; 4407 frame_T *foundfr; 4408 4409 foundfr = wp->w_frame; 4410 while (count--) 4411 { 4412 /* 4413 * First go upwards in the tree of frames until we find a upwards or 4414 * downwards neighbor. 4415 */ 4416 fr = foundfr; 4417 for (;;) 4418 { 4419 if (fr == tp->tp_topframe) 4420 goto end; 4421 if (up) 4422 nfr = fr->fr_prev; 4423 else 4424 nfr = fr->fr_next; 4425 if (fr->fr_parent->fr_layout == FR_COL && nfr != NULL) 4426 break; 4427 fr = fr->fr_parent; 4428 } 4429 4430 /* 4431 * Now go downwards to find the bottom or top frame in it. 4432 */ 4433 for (;;) 4434 { 4435 if (nfr->fr_layout == FR_LEAF) 4436 { 4437 foundfr = nfr; 4438 break; 4439 } 4440 fr = nfr->fr_child; 4441 if (nfr->fr_layout == FR_ROW) 4442 { 4443 // Find the frame at the cursor row. 4444 while (fr->fr_next != NULL 4445 && frame2win(fr)->w_wincol + fr->fr_width 4446 <= wp->w_wincol + wp->w_wcol) 4447 fr = fr->fr_next; 4448 } 4449 if (nfr->fr_layout == FR_COL && up) 4450 while (fr->fr_next != NULL) 4451 fr = fr->fr_next; 4452 nfr = fr; 4453 } 4454 } 4455 end: 4456 return foundfr != NULL ? foundfr->fr_win : NULL; 4457 } 4458 4459 /* 4460 * Move to window above or below "count" times. 4461 */ 4462 static void 4463 win_goto_ver( 4464 int up, // TRUE to go to win above 4465 long count) 4466 { 4467 win_T *win; 4468 4469 win = win_vert_neighbor(curtab, curwin, up, count); 4470 if (win != NULL) 4471 win_goto(win); 4472 } 4473 4474 /* 4475 * Get the left or right neighbor window of the specified window. 4476 * left - TRUE for the left neighbor 4477 * count - nth neighbor window 4478 * Returns the specified window if the neighbor is not found. 4479 */ 4480 win_T * 4481 win_horz_neighbor(tabpage_T *tp, win_T *wp, int left, long count) 4482 { 4483 frame_T *fr; 4484 frame_T *nfr; 4485 frame_T *foundfr; 4486 4487 foundfr = wp->w_frame; 4488 while (count--) 4489 { 4490 /* 4491 * First go upwards in the tree of frames until we find a left or 4492 * right neighbor. 4493 */ 4494 fr = foundfr; 4495 for (;;) 4496 { 4497 if (fr == tp->tp_topframe) 4498 goto end; 4499 if (left) 4500 nfr = fr->fr_prev; 4501 else 4502 nfr = fr->fr_next; 4503 if (fr->fr_parent->fr_layout == FR_ROW && nfr != NULL) 4504 break; 4505 fr = fr->fr_parent; 4506 } 4507 4508 /* 4509 * Now go downwards to find the leftmost or rightmost frame in it. 4510 */ 4511 for (;;) 4512 { 4513 if (nfr->fr_layout == FR_LEAF) 4514 { 4515 foundfr = nfr; 4516 break; 4517 } 4518 fr = nfr->fr_child; 4519 if (nfr->fr_layout == FR_COL) 4520 { 4521 // Find the frame at the cursor row. 4522 while (fr->fr_next != NULL 4523 && frame2win(fr)->w_winrow + fr->fr_height 4524 <= wp->w_winrow + wp->w_wrow) 4525 fr = fr->fr_next; 4526 } 4527 if (nfr->fr_layout == FR_ROW && left) 4528 while (fr->fr_next != NULL) 4529 fr = fr->fr_next; 4530 nfr = fr; 4531 } 4532 } 4533 end: 4534 return foundfr != NULL ? foundfr->fr_win : NULL; 4535 } 4536 4537 /* 4538 * Move to left or right window. 4539 */ 4540 static void 4541 win_goto_hor( 4542 int left, // TRUE to go to left win 4543 long count) 4544 { 4545 win_T *win; 4546 4547 win = win_horz_neighbor(curtab, curwin, left, count); 4548 if (win != NULL) 4549 win_goto(win); 4550 } 4551 4552 /* 4553 * Make window "wp" the current window. 4554 */ 4555 void 4556 win_enter(win_T *wp, int undo_sync) 4557 { 4558 win_enter_ext(wp, undo_sync, FALSE, FALSE, TRUE, TRUE); 4559 } 4560 4561 /* 4562 * Make window wp the current window. 4563 * Can be called with "curwin_invalid" TRUE, which means that curwin has just 4564 * been closed and isn't valid. 4565 */ 4566 static void 4567 win_enter_ext( 4568 win_T *wp, 4569 int undo_sync, 4570 int curwin_invalid, 4571 int trigger_new_autocmds, 4572 int trigger_enter_autocmds, 4573 int trigger_leave_autocmds) 4574 { 4575 int other_buffer = FALSE; 4576 4577 if (wp == curwin && !curwin_invalid) // nothing to do 4578 return; 4579 4580 #ifdef FEAT_JOB_CHANNEL 4581 if (!curwin_invalid) 4582 leaving_window(curwin); 4583 #endif 4584 4585 if (!curwin_invalid && trigger_leave_autocmds) 4586 { 4587 /* 4588 * Be careful: If autocommands delete the window, return now. 4589 */ 4590 if (wp->w_buffer != curbuf) 4591 { 4592 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4593 other_buffer = TRUE; 4594 if (!win_valid(wp)) 4595 return; 4596 } 4597 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4598 if (!win_valid(wp)) 4599 return; 4600 #ifdef FEAT_EVAL 4601 // autocmds may abort script processing 4602 if (aborting()) 4603 return; 4604 #endif 4605 } 4606 4607 // sync undo before leaving the current buffer 4608 if (undo_sync && curbuf != wp->w_buffer) 4609 u_sync(FALSE); 4610 4611 // Might need to scroll the old window before switching, e.g., when the 4612 // cursor was moved. 4613 update_topline(); 4614 4615 // may have to copy the buffer options when 'cpo' contains 'S' 4616 if (wp->w_buffer != curbuf) 4617 buf_copy_options(wp->w_buffer, BCO_ENTER | BCO_NOHELP); 4618 if (!curwin_invalid) 4619 { 4620 prevwin = curwin; // remember for CTRL-W p 4621 curwin->w_redr_status = TRUE; 4622 } 4623 curwin = wp; 4624 curbuf = wp->w_buffer; 4625 check_cursor(); 4626 if (!virtual_active()) 4627 curwin->w_cursor.coladd = 0; 4628 changed_line_abv_curs(); // assume cursor position needs updating 4629 4630 if (curwin->w_localdir != NULL || curtab->tp_localdir != NULL) 4631 { 4632 char_u *dirname; 4633 4634 // Window or tab has a local directory: Save current directory as 4635 // global directory (unless that was done already) and change to the 4636 // local directory. 4637 if (globaldir == NULL) 4638 { 4639 char_u cwd[MAXPATHL]; 4640 4641 if (mch_dirname(cwd, MAXPATHL) == OK) 4642 globaldir = vim_strsave(cwd); 4643 } 4644 if (curwin->w_localdir != NULL) 4645 dirname = curwin->w_localdir; 4646 else 4647 dirname = curtab->tp_localdir; 4648 4649 if (mch_chdir((char *)dirname) == 0) 4650 shorten_fnames(TRUE); 4651 } 4652 else if (globaldir != NULL) 4653 { 4654 // Window doesn't have a local directory and we are not in the global 4655 // directory: Change to the global directory. 4656 vim_ignored = mch_chdir((char *)globaldir); 4657 VIM_CLEAR(globaldir); 4658 shorten_fnames(TRUE); 4659 } 4660 4661 #ifdef FEAT_JOB_CHANNEL 4662 entering_window(curwin); 4663 #endif 4664 // Careful: autocommands may close the window and make "wp" invalid 4665 if (trigger_new_autocmds) 4666 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 4667 if (trigger_enter_autocmds) 4668 { 4669 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 4670 if (other_buffer) 4671 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4672 } 4673 4674 #ifdef FEAT_TITLE 4675 maketitle(); 4676 #endif 4677 curwin->w_redr_status = TRUE; 4678 #ifdef FEAT_TERMINAL 4679 if (bt_terminal(curwin->w_buffer)) 4680 // terminal is likely in another mode 4681 redraw_mode = TRUE; 4682 #endif 4683 redraw_tabline = TRUE; 4684 if (restart_edit) 4685 redraw_later(VALID); // causes status line redraw 4686 4687 // set window height to desired minimal value 4688 if (curwin->w_height < p_wh && !curwin->w_p_wfh 4689 #ifdef FEAT_PROP_POPUP 4690 && !popup_is_popup(curwin) 4691 #endif 4692 ) 4693 win_setheight((int)p_wh); 4694 else if (curwin->w_height == 0) 4695 win_setheight(1); 4696 4697 // set window width to desired minimal value 4698 if (curwin->w_width < p_wiw && !curwin->w_p_wfw) 4699 win_setwidth((int)p_wiw); 4700 4701 setmouse(); // in case jumped to/from help buffer 4702 4703 // Change directories when the 'acd' option is set. 4704 DO_AUTOCHDIR; 4705 } 4706 4707 4708 /* 4709 * Jump to the first open window that contains buffer "buf", if one exists. 4710 * Returns a pointer to the window found, otherwise NULL. 4711 */ 4712 win_T * 4713 buf_jump_open_win(buf_T *buf) 4714 { 4715 win_T *wp = NULL; 4716 4717 if (curwin->w_buffer == buf) 4718 wp = curwin; 4719 else 4720 FOR_ALL_WINDOWS(wp) 4721 if (wp->w_buffer == buf) 4722 break; 4723 if (wp != NULL) 4724 win_enter(wp, FALSE); 4725 return wp; 4726 } 4727 4728 /* 4729 * Jump to the first open window in any tab page that contains buffer "buf", 4730 * if one exists. 4731 * Returns a pointer to the window found, otherwise NULL. 4732 */ 4733 win_T * 4734 buf_jump_open_tab(buf_T *buf) 4735 { 4736 win_T *wp = buf_jump_open_win(buf); 4737 tabpage_T *tp; 4738 4739 if (wp != NULL) 4740 return wp; 4741 4742 FOR_ALL_TABPAGES(tp) 4743 if (tp != curtab) 4744 { 4745 for (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next) 4746 if (wp->w_buffer == buf) 4747 break; 4748 if (wp != NULL) 4749 { 4750 goto_tabpage_win(tp, wp); 4751 if (curwin != wp) 4752 wp = NULL; // something went wrong 4753 break; 4754 } 4755 } 4756 return wp; 4757 } 4758 4759 static int last_win_id = LOWEST_WIN_ID - 1; 4760 4761 /* 4762 * Allocate a window structure and link it in the window list when "hidden" is 4763 * FALSE. 4764 */ 4765 static win_T * 4766 win_alloc(win_T *after UNUSED, int hidden UNUSED) 4767 { 4768 win_T *new_wp; 4769 4770 /* 4771 * allocate window structure and linesizes arrays 4772 */ 4773 new_wp = ALLOC_CLEAR_ONE(win_T); 4774 if (new_wp == NULL) 4775 return NULL; 4776 4777 if (win_alloc_lines(new_wp) == FAIL) 4778 { 4779 vim_free(new_wp); 4780 return NULL; 4781 } 4782 4783 new_wp->w_id = ++last_win_id; 4784 4785 #ifdef FEAT_EVAL 4786 // init w: variables 4787 new_wp->w_vars = dict_alloc(); 4788 if (new_wp->w_vars == NULL) 4789 { 4790 win_free_lsize(new_wp); 4791 vim_free(new_wp); 4792 return NULL; 4793 } 4794 init_var_dict(new_wp->w_vars, &new_wp->w_winvar, VAR_SCOPE); 4795 #endif 4796 4797 // Don't execute autocommands while the window is not properly 4798 // initialized yet. gui_create_scrollbar() may trigger a FocusGained 4799 // event. 4800 block_autocmds(); 4801 4802 /* 4803 * link the window in the window list 4804 */ 4805 if (!hidden) 4806 win_append(after, new_wp); 4807 new_wp->w_wincol = 0; 4808 new_wp->w_width = Columns; 4809 4810 // position the display and the cursor at the top of the file. 4811 new_wp->w_topline = 1; 4812 #ifdef FEAT_DIFF 4813 new_wp->w_topfill = 0; 4814 #endif 4815 new_wp->w_botline = 2; 4816 new_wp->w_cursor.lnum = 1; 4817 new_wp->w_scbind_pos = 1; 4818 4819 // use global option value for global-local options 4820 new_wp->w_p_so = -1; 4821 new_wp->w_p_siso = -1; 4822 4823 // We won't calculate w_fraction until resizing the window 4824 new_wp->w_fraction = 0; 4825 new_wp->w_prev_fraction_row = -1; 4826 4827 #ifdef FEAT_GUI 4828 if (gui.in_use) 4829 { 4830 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_LEFT], 4831 SBAR_LEFT, new_wp); 4832 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_RIGHT], 4833 SBAR_RIGHT, new_wp); 4834 } 4835 #endif 4836 #ifdef FEAT_FOLDING 4837 foldInitWin(new_wp); 4838 #endif 4839 unblock_autocmds(); 4840 #ifdef FEAT_SEARCH_EXTRA 4841 new_wp->w_match_head = NULL; 4842 new_wp->w_next_match_id = 4; 4843 #endif 4844 return new_wp; 4845 } 4846 4847 /* 4848 * Remove window 'wp' from the window list and free the structure. 4849 */ 4850 static void 4851 win_free( 4852 win_T *wp, 4853 tabpage_T *tp) // tab page "win" is in, NULL for current 4854 { 4855 int i; 4856 buf_T *buf; 4857 wininfo_T *wip; 4858 4859 #ifdef FEAT_FOLDING 4860 clearFolding(wp); 4861 #endif 4862 4863 // reduce the reference count to the argument list. 4864 alist_unlink(wp->w_alist); 4865 4866 // Don't execute autocommands while the window is halfway being deleted. 4867 // gui_mch_destroy_scrollbar() may trigger a FocusGained event. 4868 block_autocmds(); 4869 4870 #ifdef FEAT_LUA 4871 lua_window_free(wp); 4872 #endif 4873 4874 #ifdef FEAT_MZSCHEME 4875 mzscheme_window_free(wp); 4876 #endif 4877 4878 #ifdef FEAT_PERL 4879 perl_win_free(wp); 4880 #endif 4881 4882 #ifdef FEAT_PYTHON 4883 python_window_free(wp); 4884 #endif 4885 4886 #ifdef FEAT_PYTHON3 4887 python3_window_free(wp); 4888 #endif 4889 4890 #ifdef FEAT_TCL 4891 tcl_window_free(wp); 4892 #endif 4893 4894 #ifdef FEAT_RUBY 4895 ruby_window_free(wp); 4896 #endif 4897 4898 clear_winopt(&wp->w_onebuf_opt); 4899 clear_winopt(&wp->w_allbuf_opt); 4900 4901 #ifdef FEAT_EVAL 4902 vars_clear(&wp->w_vars->dv_hashtab); // free all w: variables 4903 hash_init(&wp->w_vars->dv_hashtab); 4904 unref_var_dict(wp->w_vars); 4905 #endif 4906 4907 { 4908 tabpage_T *ttp; 4909 4910 if (prevwin == wp) 4911 prevwin = NULL; 4912 FOR_ALL_TABPAGES(ttp) 4913 if (ttp->tp_prevwin == wp) 4914 ttp->tp_prevwin = NULL; 4915 } 4916 win_free_lsize(wp); 4917 4918 for (i = 0; i < wp->w_tagstacklen; ++i) 4919 { 4920 vim_free(wp->w_tagstack[i].tagname); 4921 vim_free(wp->w_tagstack[i].user_data); 4922 } 4923 vim_free(wp->w_localdir); 4924 4925 // Remove the window from the b_wininfo lists, it may happen that the 4926 // freed memory is re-used for another window. 4927 FOR_ALL_BUFFERS(buf) 4928 for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) 4929 if (wip->wi_win == wp) 4930 wip->wi_win = NULL; 4931 4932 #ifdef FEAT_SEARCH_EXTRA 4933 clear_matches(wp); 4934 #endif 4935 4936 #ifdef FEAT_JUMPLIST 4937 free_jumplist(wp); 4938 #endif 4939 4940 #ifdef FEAT_QUICKFIX 4941 qf_free_all(wp); 4942 #endif 4943 4944 #ifdef FEAT_GUI 4945 if (gui.in_use) 4946 { 4947 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_LEFT]); 4948 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_RIGHT]); 4949 } 4950 #endif // FEAT_GUI 4951 4952 #ifdef FEAT_MENU 4953 remove_winbar(wp); 4954 #endif 4955 #ifdef FEAT_PROP_POPUP 4956 free_callback(&wp->w_close_cb); 4957 free_callback(&wp->w_filter_cb); 4958 for (i = 0; i < 4; ++i) 4959 VIM_CLEAR(wp->w_border_highlight[i]); 4960 vim_free(wp->w_scrollbar_highlight); 4961 vim_free(wp->w_thumb_highlight); 4962 vim_free(wp->w_popup_title); 4963 list_unref(wp->w_popup_mask); 4964 vim_free(wp->w_popup_mask_cells); 4965 #endif 4966 4967 #ifdef FEAT_SYN_HL 4968 vim_free(wp->w_p_cc_cols); 4969 #endif 4970 4971 if (win_valid_any_tab(wp)) 4972 win_remove(wp, tp); 4973 if (autocmd_busy) 4974 { 4975 wp->w_next = au_pending_free_win; 4976 au_pending_free_win = wp; 4977 } 4978 else 4979 vim_free(wp); 4980 4981 unblock_autocmds(); 4982 } 4983 4984 /* 4985 * Return TRUE if "wp" is not in the list of windows: the autocmd window or a 4986 * popup window. 4987 */ 4988 static int 4989 win_unlisted(win_T *wp) 4990 { 4991 return wp == aucmd_win || WIN_IS_POPUP(wp); 4992 } 4993 4994 #if defined(FEAT_PROP_POPUP) || defined(PROTO) 4995 /* 4996 * Free a popup window. This does not take the window out of the window list 4997 * and assumes there is only one toplevel frame, no split. 4998 */ 4999 void 5000 win_free_popup(win_T *win) 5001 { 5002 if (bt_popup(win->w_buffer)) 5003 win_close_buffer(win, DOBUF_WIPE_REUSE, FALSE); 5004 else 5005 close_buffer(win, win->w_buffer, 0, FALSE, FALSE); 5006 # if defined(FEAT_TIMERS) 5007 if (win->w_popup_timer != NULL) 5008 stop_timer(win->w_popup_timer); 5009 # endif 5010 vim_free(win->w_frame); 5011 win_free(win, NULL); 5012 } 5013 #endif 5014 5015 /* 5016 * Append window "wp" in the window list after window "after". 5017 */ 5018 static void 5019 win_append(win_T *after, win_T *wp) 5020 { 5021 win_T *before; 5022 5023 if (after == NULL) // after NULL is in front of the first 5024 before = firstwin; 5025 else 5026 before = after->w_next; 5027 5028 wp->w_next = before; 5029 wp->w_prev = after; 5030 if (after == NULL) 5031 firstwin = wp; 5032 else 5033 after->w_next = wp; 5034 if (before == NULL) 5035 lastwin = wp; 5036 else 5037 before->w_prev = wp; 5038 } 5039 5040 /* 5041 * Remove a window from the window list. 5042 */ 5043 void 5044 win_remove( 5045 win_T *wp, 5046 tabpage_T *tp) // tab page "win" is in, NULL for current 5047 { 5048 if (wp->w_prev != NULL) 5049 wp->w_prev->w_next = wp->w_next; 5050 else if (tp == NULL) 5051 firstwin = curtab->tp_firstwin = wp->w_next; 5052 else 5053 tp->tp_firstwin = wp->w_next; 5054 5055 if (wp->w_next != NULL) 5056 wp->w_next->w_prev = wp->w_prev; 5057 else if (tp == NULL) 5058 lastwin = curtab->tp_lastwin = wp->w_prev; 5059 else 5060 tp->tp_lastwin = wp->w_prev; 5061 } 5062 5063 /* 5064 * Append frame "frp" in a frame list after frame "after". 5065 */ 5066 static void 5067 frame_append(frame_T *after, frame_T *frp) 5068 { 5069 frp->fr_next = after->fr_next; 5070 after->fr_next = frp; 5071 if (frp->fr_next != NULL) 5072 frp->fr_next->fr_prev = frp; 5073 frp->fr_prev = after; 5074 } 5075 5076 /* 5077 * Insert frame "frp" in a frame list before frame "before". 5078 */ 5079 static void 5080 frame_insert(frame_T *before, frame_T *frp) 5081 { 5082 frp->fr_next = before; 5083 frp->fr_prev = before->fr_prev; 5084 before->fr_prev = frp; 5085 if (frp->fr_prev != NULL) 5086 frp->fr_prev->fr_next = frp; 5087 else 5088 frp->fr_parent->fr_child = frp; 5089 } 5090 5091 /* 5092 * Remove a frame from a frame list. 5093 */ 5094 static void 5095 frame_remove(frame_T *frp) 5096 { 5097 if (frp->fr_prev != NULL) 5098 frp->fr_prev->fr_next = frp->fr_next; 5099 else 5100 { 5101 frp->fr_parent->fr_child = frp->fr_next; 5102 // special case: topframe->fr_child == frp 5103 if (topframe->fr_child == frp) 5104 topframe->fr_child = frp->fr_next; 5105 } 5106 if (frp->fr_next != NULL) 5107 frp->fr_next->fr_prev = frp->fr_prev; 5108 } 5109 5110 /* 5111 * Allocate w_lines[] for window "wp". 5112 * Return FAIL for failure, OK for success. 5113 */ 5114 int 5115 win_alloc_lines(win_T *wp) 5116 { 5117 wp->w_lines_valid = 0; 5118 wp->w_lines = ALLOC_CLEAR_MULT(wline_T, Rows ); 5119 if (wp->w_lines == NULL) 5120 return FAIL; 5121 return OK; 5122 } 5123 5124 /* 5125 * free lsize arrays for a window 5126 */ 5127 void 5128 win_free_lsize(win_T *wp) 5129 { 5130 // TODO: why would wp be NULL here? 5131 if (wp != NULL) 5132 VIM_CLEAR(wp->w_lines); 5133 } 5134 5135 /* 5136 * Called from win_new_shellsize() after Rows changed. 5137 * This only does the current tab page, others must be done when made active. 5138 */ 5139 void 5140 shell_new_rows(void) 5141 { 5142 int h = (int)ROWS_AVAIL; 5143 5144 if (firstwin == NULL) // not initialized yet 5145 return; 5146 if (h < frame_minheight(topframe, NULL)) 5147 h = frame_minheight(topframe, NULL); 5148 5149 // First try setting the heights of windows with 'winfixheight'. If 5150 // that doesn't result in the right height, forget about that option. 5151 frame_new_height(topframe, h, FALSE, TRUE); 5152 if (!frame_check_height(topframe, h)) 5153 frame_new_height(topframe, h, FALSE, FALSE); 5154 5155 (void)win_comp_pos(); // recompute w_winrow and w_wincol 5156 compute_cmdrow(); 5157 curtab->tp_ch_used = p_ch; 5158 5159 #if 0 5160 // Disabled: don't want making the screen smaller make a window larger. 5161 if (p_ea) 5162 win_equal(curwin, FALSE, 'v'); 5163 #endif 5164 } 5165 5166 /* 5167 * Called from win_new_shellsize() after Columns changed. 5168 */ 5169 void 5170 shell_new_columns(void) 5171 { 5172 if (firstwin == NULL) // not initialized yet 5173 return; 5174 5175 // First try setting the widths of windows with 'winfixwidth'. If that 5176 // doesn't result in the right width, forget about that option. 5177 frame_new_width(topframe, (int)Columns, FALSE, TRUE); 5178 if (!frame_check_width(topframe, Columns)) 5179 frame_new_width(topframe, (int)Columns, FALSE, FALSE); 5180 5181 (void)win_comp_pos(); // recompute w_winrow and w_wincol 5182 #if 0 5183 // Disabled: don't want making the screen smaller make a window larger. 5184 if (p_ea) 5185 win_equal(curwin, FALSE, 'h'); 5186 #endif 5187 } 5188 5189 #if defined(FEAT_CMDWIN) || defined(PROTO) 5190 /* 5191 * Save the size of all windows in "gap". 5192 */ 5193 void 5194 win_size_save(garray_T *gap) 5195 5196 { 5197 win_T *wp; 5198 5199 ga_init2(gap, (int)sizeof(int), 1); 5200 if (ga_grow(gap, win_count() * 2 + 1) == OK) 5201 { 5202 // first entry is value of 'lines' 5203 ((int *)gap->ga_data)[gap->ga_len++] = Rows; 5204 5205 FOR_ALL_WINDOWS(wp) 5206 { 5207 ((int *)gap->ga_data)[gap->ga_len++] = 5208 wp->w_width + wp->w_vsep_width; 5209 ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height; 5210 } 5211 } 5212 } 5213 5214 /* 5215 * Restore window sizes, but only if the number of windows is still the same 5216 * and 'lines' didn't change. 5217 * Does not free the growarray. 5218 */ 5219 void 5220 win_size_restore(garray_T *gap) 5221 { 5222 win_T *wp; 5223 int i, j; 5224 5225 if (win_count() * 2 + 1 == gap->ga_len 5226 && ((int *)gap->ga_data)[0] == Rows) 5227 { 5228 // The order matters, because frames contain other frames, but it's 5229 // difficult to get right. The easy way out is to do it twice. 5230 for (j = 0; j < 2; ++j) 5231 { 5232 i = 1; 5233 FOR_ALL_WINDOWS(wp) 5234 { 5235 frame_setwidth(wp->w_frame, ((int *)gap->ga_data)[i++]); 5236 win_setheight_win(((int *)gap->ga_data)[i++], wp); 5237 } 5238 } 5239 // recompute the window positions 5240 (void)win_comp_pos(); 5241 } 5242 } 5243 #endif // FEAT_CMDWIN 5244 5245 /* 5246 * Update the position for all windows, using the width and height of the 5247 * frames. 5248 * Returns the row just after the last window. 5249 */ 5250 int 5251 win_comp_pos(void) 5252 { 5253 int row = tabline_height(); 5254 int col = 0; 5255 5256 frame_comp_pos(topframe, &row, &col); 5257 return row; 5258 } 5259 5260 /* 5261 * Update the position of the windows in frame "topfrp", using the width and 5262 * height of the frames. 5263 * "*row" and "*col" are the top-left position of the frame. They are updated 5264 * to the bottom-right position plus one. 5265 */ 5266 static void 5267 frame_comp_pos(frame_T *topfrp, int *row, int *col) 5268 { 5269 win_T *wp; 5270 frame_T *frp; 5271 int startcol; 5272 int startrow; 5273 int h; 5274 5275 wp = topfrp->fr_win; 5276 if (wp != NULL) 5277 { 5278 if (wp->w_winrow != *row || wp->w_wincol != *col) 5279 { 5280 // position changed, redraw 5281 wp->w_winrow = *row; 5282 wp->w_wincol = *col; 5283 redraw_win_later(wp, NOT_VALID); 5284 wp->w_redr_status = TRUE; 5285 } 5286 // WinBar will not show if the window height is zero 5287 h = VISIBLE_HEIGHT(wp) + wp->w_status_height; 5288 *row += h > topfrp->fr_height ? topfrp->fr_height : h; 5289 *col += wp->w_width + wp->w_vsep_width; 5290 } 5291 else 5292 { 5293 startrow = *row; 5294 startcol = *col; 5295 FOR_ALL_FRAMES(frp, topfrp->fr_child) 5296 { 5297 if (topfrp->fr_layout == FR_ROW) 5298 *row = startrow; // all frames are at the same row 5299 else 5300 *col = startcol; // all frames are at the same col 5301 frame_comp_pos(frp, row, col); 5302 } 5303 } 5304 } 5305 5306 /* 5307 * Set current window height and take care of repositioning other windows to 5308 * fit around it. 5309 */ 5310 void 5311 win_setheight(int height) 5312 { 5313 win_setheight_win(height, curwin); 5314 } 5315 5316 /* 5317 * Set the window height of window "win" and take care of repositioning other 5318 * windows to fit around it. 5319 */ 5320 void 5321 win_setheight_win(int height, win_T *win) 5322 { 5323 int row; 5324 5325 if (win == curwin) 5326 { 5327 // Always keep current window at least one line high, even when 5328 // 'winminheight' is zero. 5329 if (height < p_wmh) 5330 height = p_wmh; 5331 if (height == 0) 5332 height = 1; 5333 height += WINBAR_HEIGHT(curwin); 5334 } 5335 5336 frame_setheight(win->w_frame, height + win->w_status_height); 5337 5338 // recompute the window positions 5339 row = win_comp_pos(); 5340 5341 /* 5342 * If there is extra space created between the last window and the command 5343 * line, clear it. 5344 */ 5345 if (full_screen && msg_scrolled == 0 && row < cmdline_row) 5346 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5347 cmdline_row = row; 5348 msg_row = row; 5349 msg_col = 0; 5350 5351 redraw_all_later(NOT_VALID); 5352 } 5353 5354 /* 5355 * Set the height of a frame to "height" and take care that all frames and 5356 * windows inside it are resized. Also resize frames on the left and right if 5357 * the are in the same FR_ROW frame. 5358 * 5359 * Strategy: 5360 * If the frame is part of a FR_COL frame, try fitting the frame in that 5361 * frame. If that doesn't work (the FR_COL frame is too small), recursively 5362 * go to containing frames to resize them and make room. 5363 * If the frame is part of a FR_ROW frame, all frames must be resized as well. 5364 * Check for the minimal height of the FR_ROW frame. 5365 * At the top level we can also use change the command line height. 5366 */ 5367 static void 5368 frame_setheight(frame_T *curfrp, int height) 5369 { 5370 int room; // total number of lines available 5371 int take; // number of lines taken from other windows 5372 int room_cmdline; // lines available from cmdline 5373 int run; 5374 frame_T *frp; 5375 int h; 5376 int room_reserved; 5377 5378 // If the height already is the desired value, nothing to do. 5379 if (curfrp->fr_height == height) 5380 return; 5381 5382 if (curfrp->fr_parent == NULL) 5383 { 5384 // topframe: can only change the command line 5385 if (height > ROWS_AVAIL) 5386 height = ROWS_AVAIL; 5387 if (height > 0) 5388 frame_new_height(curfrp, height, FALSE, FALSE); 5389 } 5390 else if (curfrp->fr_parent->fr_layout == FR_ROW) 5391 { 5392 // Row of frames: Also need to resize frames left and right of this 5393 // one. First check for the minimal height of these. 5394 h = frame_minheight(curfrp->fr_parent, NULL); 5395 if (height < h) 5396 height = h; 5397 frame_setheight(curfrp->fr_parent, height); 5398 } 5399 else 5400 { 5401 /* 5402 * Column of frames: try to change only frames in this column. 5403 */ 5404 /* 5405 * Do this twice: 5406 * 1: compute room available, if it's not enough try resizing the 5407 * containing frame. 5408 * 2: compute the room available and adjust the height to it. 5409 * Try not to reduce the height of a window with 'winfixheight' set. 5410 */ 5411 for (run = 1; run <= 2; ++run) 5412 { 5413 room = 0; 5414 room_reserved = 0; 5415 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5416 { 5417 if (frp != curfrp 5418 && frp->fr_win != NULL 5419 && frp->fr_win->w_p_wfh) 5420 room_reserved += frp->fr_height; 5421 room += frp->fr_height; 5422 if (frp != curfrp) 5423 room -= frame_minheight(frp, NULL); 5424 } 5425 if (curfrp->fr_width != Columns) 5426 room_cmdline = 0; 5427 else 5428 { 5429 room_cmdline = Rows - p_ch - (lastwin->w_winrow 5430 + VISIBLE_HEIGHT(lastwin) 5431 + lastwin->w_status_height); 5432 if (room_cmdline < 0) 5433 room_cmdline = 0; 5434 } 5435 5436 if (height <= room + room_cmdline) 5437 break; 5438 if (run == 2 || curfrp->fr_width == Columns) 5439 { 5440 if (height > room + room_cmdline) 5441 height = room + room_cmdline; 5442 break; 5443 } 5444 frame_setheight(curfrp->fr_parent, height 5445 + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1); 5446 } 5447 5448 /* 5449 * Compute the number of lines we will take from others frames (can be 5450 * negative!). 5451 */ 5452 take = height - curfrp->fr_height; 5453 5454 // If there is not enough room, also reduce the height of a window 5455 // with 'winfixheight' set. 5456 if (height > room + room_cmdline - room_reserved) 5457 room_reserved = room + room_cmdline - height; 5458 // If there is only a 'winfixheight' window and making the 5459 // window smaller, need to make the other window taller. 5460 if (take < 0 && room - curfrp->fr_height < room_reserved) 5461 room_reserved = 0; 5462 5463 if (take > 0 && room_cmdline > 0) 5464 { 5465 // use lines from cmdline first 5466 if (take < room_cmdline) 5467 room_cmdline = take; 5468 take -= room_cmdline; 5469 topframe->fr_height += room_cmdline; 5470 } 5471 5472 /* 5473 * set the current frame to the new height 5474 */ 5475 frame_new_height(curfrp, height, FALSE, FALSE); 5476 5477 /* 5478 * First take lines from the frames after the current frame. If 5479 * that is not enough, takes lines from frames above the current 5480 * frame. 5481 */ 5482 for (run = 0; run < 2; ++run) 5483 { 5484 if (run == 0) 5485 frp = curfrp->fr_next; // 1st run: start with next window 5486 else 5487 frp = curfrp->fr_prev; // 2nd run: start with prev window 5488 while (frp != NULL && take != 0) 5489 { 5490 h = frame_minheight(frp, NULL); 5491 if (room_reserved > 0 5492 && frp->fr_win != NULL 5493 && frp->fr_win->w_p_wfh) 5494 { 5495 if (room_reserved >= frp->fr_height) 5496 room_reserved -= frp->fr_height; 5497 else 5498 { 5499 if (frp->fr_height - room_reserved > take) 5500 room_reserved = frp->fr_height - take; 5501 take -= frp->fr_height - room_reserved; 5502 frame_new_height(frp, room_reserved, FALSE, FALSE); 5503 room_reserved = 0; 5504 } 5505 } 5506 else 5507 { 5508 if (frp->fr_height - take < h) 5509 { 5510 take -= frp->fr_height - h; 5511 frame_new_height(frp, h, FALSE, FALSE); 5512 } 5513 else 5514 { 5515 frame_new_height(frp, frp->fr_height - take, 5516 FALSE, FALSE); 5517 take = 0; 5518 } 5519 } 5520 if (run == 0) 5521 frp = frp->fr_next; 5522 else 5523 frp = frp->fr_prev; 5524 } 5525 } 5526 } 5527 } 5528 5529 /* 5530 * Set current window width and take care of repositioning other windows to 5531 * fit around it. 5532 */ 5533 void 5534 win_setwidth(int width) 5535 { 5536 win_setwidth_win(width, curwin); 5537 } 5538 5539 void 5540 win_setwidth_win(int width, win_T *wp) 5541 { 5542 // Always keep current window at least one column wide, even when 5543 // 'winminwidth' is zero. 5544 if (wp == curwin) 5545 { 5546 if (width < p_wmw) 5547 width = p_wmw; 5548 if (width == 0) 5549 width = 1; 5550 } 5551 5552 frame_setwidth(wp->w_frame, width + wp->w_vsep_width); 5553 5554 // recompute the window positions 5555 (void)win_comp_pos(); 5556 5557 redraw_all_later(NOT_VALID); 5558 } 5559 5560 /* 5561 * Set the width of a frame to "width" and take care that all frames and 5562 * windows inside it are resized. Also resize frames above and below if the 5563 * are in the same FR_ROW frame. 5564 * 5565 * Strategy is similar to frame_setheight(). 5566 */ 5567 static void 5568 frame_setwidth(frame_T *curfrp, int width) 5569 { 5570 int room; // total number of lines available 5571 int take; // number of lines taken from other windows 5572 int run; 5573 frame_T *frp; 5574 int w; 5575 int room_reserved; 5576 5577 // If the width already is the desired value, nothing to do. 5578 if (curfrp->fr_width == width) 5579 return; 5580 5581 if (curfrp->fr_parent == NULL) 5582 // topframe: can't change width 5583 return; 5584 5585 if (curfrp->fr_parent->fr_layout == FR_COL) 5586 { 5587 // Column of frames: Also need to resize frames above and below of 5588 // this one. First check for the minimal width of these. 5589 w = frame_minwidth(curfrp->fr_parent, NULL); 5590 if (width < w) 5591 width = w; 5592 frame_setwidth(curfrp->fr_parent, width); 5593 } 5594 else 5595 { 5596 /* 5597 * Row of frames: try to change only frames in this row. 5598 * 5599 * Do this twice: 5600 * 1: compute room available, if it's not enough try resizing the 5601 * containing frame. 5602 * 2: compute the room available and adjust the width to it. 5603 */ 5604 for (run = 1; run <= 2; ++run) 5605 { 5606 room = 0; 5607 room_reserved = 0; 5608 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5609 { 5610 if (frp != curfrp 5611 && frp->fr_win != NULL 5612 && frp->fr_win->w_p_wfw) 5613 room_reserved += frp->fr_width; 5614 room += frp->fr_width; 5615 if (frp != curfrp) 5616 room -= frame_minwidth(frp, NULL); 5617 } 5618 5619 if (width <= room) 5620 break; 5621 if (run == 2 || curfrp->fr_height >= ROWS_AVAIL) 5622 { 5623 if (width > room) 5624 width = room; 5625 break; 5626 } 5627 frame_setwidth(curfrp->fr_parent, width 5628 + frame_minwidth(curfrp->fr_parent, NOWIN) - (int)p_wmw - 1); 5629 } 5630 5631 /* 5632 * Compute the number of lines we will take from others frames (can be 5633 * negative!). 5634 */ 5635 take = width - curfrp->fr_width; 5636 5637 // If there is not enough room, also reduce the width of a window 5638 // with 'winfixwidth' set. 5639 if (width > room - room_reserved) 5640 room_reserved = room - width; 5641 // If there is only a 'winfixwidth' window and making the 5642 // window smaller, need to make the other window narrower. 5643 if (take < 0 && room - curfrp->fr_width < room_reserved) 5644 room_reserved = 0; 5645 5646 /* 5647 * set the current frame to the new width 5648 */ 5649 frame_new_width(curfrp, width, FALSE, FALSE); 5650 5651 /* 5652 * First take lines from the frames right of the current frame. If 5653 * that is not enough, takes lines from frames left of the current 5654 * frame. 5655 */ 5656 for (run = 0; run < 2; ++run) 5657 { 5658 if (run == 0) 5659 frp = curfrp->fr_next; // 1st run: start with next window 5660 else 5661 frp = curfrp->fr_prev; // 2nd run: start with prev window 5662 while (frp != NULL && take != 0) 5663 { 5664 w = frame_minwidth(frp, NULL); 5665 if (room_reserved > 0 5666 && frp->fr_win != NULL 5667 && frp->fr_win->w_p_wfw) 5668 { 5669 if (room_reserved >= frp->fr_width) 5670 room_reserved -= frp->fr_width; 5671 else 5672 { 5673 if (frp->fr_width - room_reserved > take) 5674 room_reserved = frp->fr_width - take; 5675 take -= frp->fr_width - room_reserved; 5676 frame_new_width(frp, room_reserved, FALSE, FALSE); 5677 room_reserved = 0; 5678 } 5679 } 5680 else 5681 { 5682 if (frp->fr_width - take < w) 5683 { 5684 take -= frp->fr_width - w; 5685 frame_new_width(frp, w, FALSE, FALSE); 5686 } 5687 else 5688 { 5689 frame_new_width(frp, frp->fr_width - take, 5690 FALSE, FALSE); 5691 take = 0; 5692 } 5693 } 5694 if (run == 0) 5695 frp = frp->fr_next; 5696 else 5697 frp = frp->fr_prev; 5698 } 5699 } 5700 } 5701 } 5702 5703 /* 5704 * Check 'winminheight' for a valid value and reduce it if needed. 5705 */ 5706 void 5707 win_setminheight(void) 5708 { 5709 int room; 5710 int needed; 5711 int first = TRUE; 5712 5713 // loop until there is a 'winminheight' that is possible 5714 while (p_wmh > 0) 5715 { 5716 room = Rows - p_ch; 5717 needed = frame_minheight(topframe, NULL); 5718 if (room >= needed) 5719 break; 5720 --p_wmh; 5721 if (first) 5722 { 5723 emsg(_(e_noroom)); 5724 first = FALSE; 5725 } 5726 } 5727 } 5728 5729 /* 5730 * Check 'winminwidth' for a valid value and reduce it if needed. 5731 */ 5732 void 5733 win_setminwidth(void) 5734 { 5735 int room; 5736 int needed; 5737 int first = TRUE; 5738 5739 // loop until there is a 'winminheight' that is possible 5740 while (p_wmw > 0) 5741 { 5742 room = Columns; 5743 needed = frame_minwidth(topframe, NULL); 5744 if (room >= needed) 5745 break; 5746 --p_wmw; 5747 if (first) 5748 { 5749 emsg(_(e_noroom)); 5750 first = FALSE; 5751 } 5752 } 5753 } 5754 5755 /* 5756 * Status line of dragwin is dragged "offset" lines down (negative is up). 5757 */ 5758 void 5759 win_drag_status_line(win_T *dragwin, int offset) 5760 { 5761 frame_T *curfr; 5762 frame_T *fr; 5763 int room; 5764 int row; 5765 int up; // if TRUE, drag status line up, otherwise down 5766 int n; 5767 5768 fr = dragwin->w_frame; 5769 curfr = fr; 5770 if (fr != topframe) // more than one window 5771 { 5772 fr = fr->fr_parent; 5773 // When the parent frame is not a column of frames, its parent should 5774 // be. 5775 if (fr->fr_layout != FR_COL) 5776 { 5777 curfr = fr; 5778 if (fr != topframe) // only a row of windows, may drag statusline 5779 fr = fr->fr_parent; 5780 } 5781 } 5782 5783 // If this is the last frame in a column, may want to resize the parent 5784 // frame instead (go two up to skip a row of frames). 5785 while (curfr != topframe && curfr->fr_next == NULL) 5786 { 5787 if (fr != topframe) 5788 fr = fr->fr_parent; 5789 curfr = fr; 5790 if (fr != topframe) 5791 fr = fr->fr_parent; 5792 } 5793 5794 if (offset < 0) // drag up 5795 { 5796 up = TRUE; 5797 offset = -offset; 5798 // sum up the room of the current frame and above it 5799 if (fr == curfr) 5800 { 5801 // only one window 5802 room = fr->fr_height - frame_minheight(fr, NULL); 5803 } 5804 else 5805 { 5806 room = 0; 5807 for (fr = fr->fr_child; ; fr = fr->fr_next) 5808 { 5809 room += fr->fr_height - frame_minheight(fr, NULL); 5810 if (fr == curfr) 5811 break; 5812 } 5813 } 5814 fr = curfr->fr_next; // put fr at frame that grows 5815 } 5816 else // drag down 5817 { 5818 up = FALSE; 5819 /* 5820 * Only dragging the last status line can reduce p_ch. 5821 */ 5822 room = Rows - cmdline_row; 5823 if (curfr->fr_next == NULL) 5824 room -= 1; 5825 else 5826 room -= p_ch; 5827 if (room < 0) 5828 room = 0; 5829 // sum up the room of frames below of the current one 5830 FOR_ALL_FRAMES(fr, curfr->fr_next) 5831 room += fr->fr_height - frame_minheight(fr, NULL); 5832 fr = curfr; // put fr at window that grows 5833 } 5834 5835 if (room < offset) // Not enough room 5836 offset = room; // Move as far as we can 5837 if (offset <= 0) 5838 return; 5839 5840 /* 5841 * Grow frame fr by "offset" lines. 5842 * Doesn't happen when dragging the last status line up. 5843 */ 5844 if (fr != NULL) 5845 frame_new_height(fr, fr->fr_height + offset, up, FALSE); 5846 5847 if (up) 5848 fr = curfr; // current frame gets smaller 5849 else 5850 fr = curfr->fr_next; // next frame gets smaller 5851 5852 /* 5853 * Now make the other frames smaller. 5854 */ 5855 while (fr != NULL && offset > 0) 5856 { 5857 n = frame_minheight(fr, NULL); 5858 if (fr->fr_height - offset <= n) 5859 { 5860 offset -= fr->fr_height - n; 5861 frame_new_height(fr, n, !up, FALSE); 5862 } 5863 else 5864 { 5865 frame_new_height(fr, fr->fr_height - offset, !up, FALSE); 5866 break; 5867 } 5868 if (up) 5869 fr = fr->fr_prev; 5870 else 5871 fr = fr->fr_next; 5872 } 5873 row = win_comp_pos(); 5874 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5875 cmdline_row = row; 5876 p_ch = Rows - cmdline_row; 5877 if (p_ch < 1) 5878 p_ch = 1; 5879 curtab->tp_ch_used = p_ch; 5880 redraw_all_later(SOME_VALID); 5881 showmode(); 5882 } 5883 5884 /* 5885 * Separator line of dragwin is dragged "offset" lines right (negative is left). 5886 */ 5887 void 5888 win_drag_vsep_line(win_T *dragwin, int offset) 5889 { 5890 frame_T *curfr; 5891 frame_T *fr; 5892 int room; 5893 int left; // if TRUE, drag separator line left, otherwise right 5894 int n; 5895 5896 fr = dragwin->w_frame; 5897 if (fr == topframe) // only one window (cannot happen?) 5898 return; 5899 curfr = fr; 5900 fr = fr->fr_parent; 5901 // When the parent frame is not a row of frames, its parent should be. 5902 if (fr->fr_layout != FR_ROW) 5903 { 5904 if (fr == topframe) // only a column of windows (cannot happen?) 5905 return; 5906 curfr = fr; 5907 fr = fr->fr_parent; 5908 } 5909 5910 // If this is the last frame in a row, may want to resize a parent 5911 // frame instead. 5912 while (curfr->fr_next == NULL) 5913 { 5914 if (fr == topframe) 5915 break; 5916 curfr = fr; 5917 fr = fr->fr_parent; 5918 if (fr != topframe) 5919 { 5920 curfr = fr; 5921 fr = fr->fr_parent; 5922 } 5923 } 5924 5925 if (offset < 0) // drag left 5926 { 5927 left = TRUE; 5928 offset = -offset; 5929 // sum up the room of the current frame and left of it 5930 room = 0; 5931 for (fr = fr->fr_child; ; fr = fr->fr_next) 5932 { 5933 room += fr->fr_width - frame_minwidth(fr, NULL); 5934 if (fr == curfr) 5935 break; 5936 } 5937 fr = curfr->fr_next; // put fr at frame that grows 5938 } 5939 else // drag right 5940 { 5941 left = FALSE; 5942 // sum up the room of frames right of the current one 5943 room = 0; 5944 FOR_ALL_FRAMES(fr, curfr->fr_next) 5945 room += fr->fr_width - frame_minwidth(fr, NULL); 5946 fr = curfr; // put fr at window that grows 5947 } 5948 5949 if (room < offset) // Not enough room 5950 offset = room; // Move as far as we can 5951 if (offset <= 0) // No room at all, quit. 5952 return; 5953 if (fr == NULL) 5954 return; // Safety check, should not happen. 5955 5956 // grow frame fr by offset lines 5957 frame_new_width(fr, fr->fr_width + offset, left, FALSE); 5958 5959 // shrink other frames: current and at the left or at the right 5960 if (left) 5961 fr = curfr; // current frame gets smaller 5962 else 5963 fr = curfr->fr_next; // next frame gets smaller 5964 5965 while (fr != NULL && offset > 0) 5966 { 5967 n = frame_minwidth(fr, NULL); 5968 if (fr->fr_width - offset <= n) 5969 { 5970 offset -= fr->fr_width - n; 5971 frame_new_width(fr, n, !left, FALSE); 5972 } 5973 else 5974 { 5975 frame_new_width(fr, fr->fr_width - offset, !left, FALSE); 5976 break; 5977 } 5978 if (left) 5979 fr = fr->fr_prev; 5980 else 5981 fr = fr->fr_next; 5982 } 5983 (void)win_comp_pos(); 5984 redraw_all_later(NOT_VALID); 5985 } 5986 5987 #define FRACTION_MULT 16384L 5988 5989 /* 5990 * Set wp->w_fraction for the current w_wrow and w_height. 5991 * Has no effect when the window is less than two lines. 5992 */ 5993 void 5994 set_fraction(win_T *wp) 5995 { 5996 if (wp->w_height > 1) 5997 // When cursor is in the first line the percentage is computed as if 5998 // it's halfway that line. Thus with two lines it is 25%, with three 5999 // lines 17%, etc. Similarly for the last line: 75%, 83%, etc. 6000 wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT 6001 + FRACTION_MULT / 2) / (long)wp->w_height; 6002 } 6003 6004 /* 6005 * Set the height of a window. 6006 * "height" excludes any window toolbar. 6007 * This takes care of the things inside the window, not what happens to the 6008 * window position, the frame or to other windows. 6009 */ 6010 void 6011 win_new_height(win_T *wp, int height) 6012 { 6013 int prev_height = wp->w_height; 6014 6015 // Don't want a negative height. Happens when splitting a tiny window. 6016 // Will equalize heights soon to fix it. 6017 if (height < 0) 6018 height = 0; 6019 if (wp->w_height == height) 6020 return; // nothing to do 6021 6022 if (wp->w_height > 0) 6023 { 6024 if (wp == curwin) 6025 // w_wrow needs to be valid. When setting 'laststatus' this may 6026 // call win_new_height() recursively. 6027 validate_cursor(); 6028 if (wp->w_height != prev_height) 6029 return; // Recursive call already changed the size, bail out here 6030 // to avoid the following to mess things up. 6031 if (wp->w_wrow != wp->w_prev_fraction_row) 6032 set_fraction(wp); 6033 } 6034 6035 wp->w_height = height; 6036 wp->w_skipcol = 0; 6037 6038 // There is no point in adjusting the scroll position when exiting. Some 6039 // values might be invalid. 6040 if (!exiting) 6041 scroll_to_fraction(wp, prev_height); 6042 } 6043 6044 void 6045 scroll_to_fraction(win_T *wp, int prev_height) 6046 { 6047 linenr_T lnum; 6048 int sline, line_size; 6049 int height = wp->w_height; 6050 6051 // Don't change w_topline in any of these cases: 6052 // - window height is 0 6053 // - 'scrollbind' is set and this isn't the current window 6054 // - window height is sufficient to display the whole buffer and first line 6055 // is visible. 6056 if (height > 0 6057 && (!wp->w_p_scb || wp == curwin) 6058 && (height < wp->w_buffer->b_ml.ml_line_count || wp->w_topline > 1)) 6059 { 6060 /* 6061 * Find a value for w_topline that shows the cursor at the same 6062 * relative position in the window as before (more or less). 6063 */ 6064 lnum = wp->w_cursor.lnum; 6065 if (lnum < 1) // can happen when starting up 6066 lnum = 1; 6067 wp->w_wrow = ((long)wp->w_fraction * (long)height - 1L) 6068 / FRACTION_MULT; 6069 line_size = plines_win_col(wp, lnum, (long)(wp->w_cursor.col)) - 1; 6070 sline = wp->w_wrow - line_size; 6071 6072 if (sline >= 0) 6073 { 6074 // Make sure the whole cursor line is visible, if possible. 6075 int rows = plines_win(wp, lnum, FALSE); 6076 6077 if (sline > wp->w_height - rows) 6078 { 6079 sline = wp->w_height - rows; 6080 wp->w_wrow -= rows - line_size; 6081 } 6082 } 6083 6084 if (sline < 0) 6085 { 6086 /* 6087 * Cursor line would go off top of screen if w_wrow was this high. 6088 * Make cursor line the first line in the window. If not enough 6089 * room use w_skipcol; 6090 */ 6091 wp->w_wrow = line_size; 6092 if (wp->w_wrow >= wp->w_height 6093 && (wp->w_width - win_col_off(wp)) > 0) 6094 { 6095 wp->w_skipcol += wp->w_width - win_col_off(wp); 6096 --wp->w_wrow; 6097 while (wp->w_wrow >= wp->w_height) 6098 { 6099 wp->w_skipcol += wp->w_width - win_col_off(wp) 6100 + win_col_off2(wp); 6101 --wp->w_wrow; 6102 } 6103 } 6104 } 6105 else if (sline > 0) 6106 { 6107 while (sline > 0 && lnum > 1) 6108 { 6109 #ifdef FEAT_FOLDING 6110 hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); 6111 if (lnum == 1) 6112 { 6113 // first line in buffer is folded 6114 line_size = 1; 6115 --sline; 6116 break; 6117 } 6118 #endif 6119 --lnum; 6120 #ifdef FEAT_DIFF 6121 if (lnum == wp->w_topline) 6122 line_size = plines_win_nofill(wp, lnum, TRUE) 6123 + wp->w_topfill; 6124 else 6125 #endif 6126 line_size = plines_win(wp, lnum, TRUE); 6127 sline -= line_size; 6128 } 6129 6130 if (sline < 0) 6131 { 6132 /* 6133 * Line we want at top would go off top of screen. Use next 6134 * line instead. 6135 */ 6136 #ifdef FEAT_FOLDING 6137 hasFoldingWin(wp, lnum, NULL, &lnum, TRUE, NULL); 6138 #endif 6139 lnum++; 6140 wp->w_wrow -= line_size + sline; 6141 } 6142 else if (sline > 0) 6143 { 6144 // First line of file reached, use that as topline. 6145 lnum = 1; 6146 wp->w_wrow -= sline; 6147 } 6148 } 6149 set_topline(wp, lnum); 6150 } 6151 6152 if (wp == curwin) 6153 { 6154 if (get_scrolloff_value()) 6155 update_topline(); 6156 curs_columns(FALSE); // validate w_wrow 6157 } 6158 if (prev_height > 0) 6159 wp->w_prev_fraction_row = wp->w_wrow; 6160 6161 win_comp_scroll(wp); 6162 redraw_win_later(wp, SOME_VALID); 6163 wp->w_redr_status = TRUE; 6164 invalidate_botline_win(wp); 6165 } 6166 6167 /* 6168 * Set the width of a window. 6169 */ 6170 void 6171 win_new_width(win_T *wp, int width) 6172 { 6173 wp->w_width = width; 6174 wp->w_lines_valid = 0; 6175 changed_line_abv_curs_win(wp); 6176 invalidate_botline_win(wp); 6177 if (wp == curwin) 6178 { 6179 update_topline(); 6180 curs_columns(TRUE); // validate w_wrow 6181 } 6182 redraw_win_later(wp, NOT_VALID); 6183 wp->w_redr_status = TRUE; 6184 } 6185 6186 void 6187 win_comp_scroll(win_T *wp) 6188 { 6189 wp->w_p_scr = ((unsigned)wp->w_height >> 1); 6190 if (wp->w_p_scr == 0) 6191 wp->w_p_scr = 1; 6192 } 6193 6194 /* 6195 * command_height: called whenever p_ch has been changed 6196 */ 6197 void 6198 command_height(void) 6199 { 6200 int h; 6201 frame_T *frp; 6202 int old_p_ch = curtab->tp_ch_used; 6203 6204 // Use the value of p_ch that we remembered. This is needed for when the 6205 // GUI starts up, we can't be sure in what order things happen. And when 6206 // p_ch was changed in another tab page. 6207 curtab->tp_ch_used = p_ch; 6208 6209 // Find bottom frame with width of screen. 6210 frp = lastwin->w_frame; 6211 while (frp->fr_width != Columns && frp->fr_parent != NULL) 6212 frp = frp->fr_parent; 6213 6214 // Avoid changing the height of a window with 'winfixheight' set. 6215 while (frp->fr_prev != NULL && frp->fr_layout == FR_LEAF 6216 && frp->fr_win->w_p_wfh) 6217 frp = frp->fr_prev; 6218 6219 if (starting != NO_SCREEN) 6220 { 6221 cmdline_row = Rows - p_ch; 6222 6223 if (p_ch > old_p_ch) // p_ch got bigger 6224 { 6225 while (p_ch > old_p_ch) 6226 { 6227 if (frp == NULL) 6228 { 6229 emsg(_(e_noroom)); 6230 p_ch = old_p_ch; 6231 curtab->tp_ch_used = p_ch; 6232 cmdline_row = Rows - p_ch; 6233 break; 6234 } 6235 h = frp->fr_height - frame_minheight(frp, NULL); 6236 if (h > p_ch - old_p_ch) 6237 h = p_ch - old_p_ch; 6238 old_p_ch += h; 6239 frame_add_height(frp, -h); 6240 frp = frp->fr_prev; 6241 } 6242 6243 // Recompute window positions. 6244 (void)win_comp_pos(); 6245 6246 // clear the lines added to cmdline 6247 if (full_screen) 6248 screen_fill((int)(cmdline_row), (int)Rows, 0, 6249 (int)Columns, ' ', ' ', 0); 6250 msg_row = cmdline_row; 6251 redraw_cmdline = TRUE; 6252 return; 6253 } 6254 6255 if (msg_row < cmdline_row) 6256 msg_row = cmdline_row; 6257 redraw_cmdline = TRUE; 6258 } 6259 frame_add_height(frp, (int)(old_p_ch - p_ch)); 6260 6261 // Recompute window positions. 6262 if (frp != lastwin->w_frame) 6263 (void)win_comp_pos(); 6264 } 6265 6266 /* 6267 * Resize frame "frp" to be "n" lines higher (negative for less high). 6268 * Also resize the frames it is contained in. 6269 */ 6270 static void 6271 frame_add_height(frame_T *frp, int n) 6272 { 6273 frame_new_height(frp, frp->fr_height + n, FALSE, FALSE); 6274 for (;;) 6275 { 6276 frp = frp->fr_parent; 6277 if (frp == NULL) 6278 break; 6279 frp->fr_height += n; 6280 } 6281 } 6282 6283 /* 6284 * Add or remove a status line for the bottom window(s), according to the 6285 * value of 'laststatus'. 6286 */ 6287 void 6288 last_status( 6289 int morewin) // pretend there are two or more windows 6290 { 6291 // Don't make a difference between horizontal or vertical split. 6292 last_status_rec(topframe, (p_ls == 2 6293 || (p_ls == 1 && (morewin || !ONE_WINDOW)))); 6294 } 6295 6296 static void 6297 last_status_rec(frame_T *fr, int statusline) 6298 { 6299 frame_T *fp; 6300 win_T *wp; 6301 6302 if (fr->fr_layout == FR_LEAF) 6303 { 6304 wp = fr->fr_win; 6305 if (wp->w_status_height != 0 && !statusline) 6306 { 6307 // remove status line 6308 win_new_height(wp, wp->w_height + 1); 6309 wp->w_status_height = 0; 6310 comp_col(); 6311 } 6312 else if (wp->w_status_height == 0 && statusline) 6313 { 6314 // Find a frame to take a line from. 6315 fp = fr; 6316 while (fp->fr_height <= frame_minheight(fp, NULL)) 6317 { 6318 if (fp == topframe) 6319 { 6320 emsg(_(e_noroom)); 6321 return; 6322 } 6323 // In a column of frames: go to frame above. If already at 6324 // the top or in a row of frames: go to parent. 6325 if (fp->fr_parent->fr_layout == FR_COL && fp->fr_prev != NULL) 6326 fp = fp->fr_prev; 6327 else 6328 fp = fp->fr_parent; 6329 } 6330 wp->w_status_height = 1; 6331 if (fp != fr) 6332 { 6333 frame_new_height(fp, fp->fr_height - 1, FALSE, FALSE); 6334 frame_fix_height(wp); 6335 (void)win_comp_pos(); 6336 } 6337 else 6338 win_new_height(wp, wp->w_height - 1); 6339 comp_col(); 6340 redraw_all_later(SOME_VALID); 6341 } 6342 } 6343 else if (fr->fr_layout == FR_ROW) 6344 { 6345 // vertically split windows, set status line for each one 6346 FOR_ALL_FRAMES(fp, fr->fr_child) 6347 last_status_rec(fp, statusline); 6348 } 6349 else 6350 { 6351 // horizontally split window, set status line for last one 6352 for (fp = fr->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 6353 ; 6354 last_status_rec(fp, statusline); 6355 } 6356 } 6357 6358 /* 6359 * Return the number of lines used by the tab page line. 6360 */ 6361 int 6362 tabline_height(void) 6363 { 6364 #ifdef FEAT_GUI_TABLINE 6365 // When the GUI has the tabline then this always returns zero. 6366 if (gui_use_tabline()) 6367 return 0; 6368 #endif 6369 switch (p_stal) 6370 { 6371 case 0: return 0; 6372 case 1: return (first_tabpage->tp_next == NULL) ? 0 : 1; 6373 } 6374 return 1; 6375 } 6376 6377 /* 6378 * Return the minimal number of rows that is needed on the screen to display 6379 * the current number of windows. 6380 */ 6381 int 6382 min_rows(void) 6383 { 6384 int total; 6385 tabpage_T *tp; 6386 int n; 6387 6388 if (firstwin == NULL) // not initialized yet 6389 return MIN_LINES; 6390 6391 total = 0; 6392 FOR_ALL_TABPAGES(tp) 6393 { 6394 n = frame_minheight(tp->tp_topframe, NULL); 6395 if (total < n) 6396 total = n; 6397 } 6398 total += tabline_height(); 6399 total += 1; // count the room for the command line 6400 return total; 6401 } 6402 6403 /* 6404 * Return TRUE if there is only one window and only one tab page, not 6405 * counting a help or preview window, unless it is the current window. 6406 * Does not count unlisted windows. 6407 */ 6408 int 6409 only_one_window(void) 6410 { 6411 int count = 0; 6412 win_T *wp; 6413 6414 // If there is another tab page there always is another window. 6415 if (first_tabpage->tp_next != NULL) 6416 return FALSE; 6417 6418 FOR_ALL_WINDOWS(wp) 6419 if (wp->w_buffer != NULL 6420 && (!((bt_help(wp->w_buffer) && !bt_help(curbuf)) 6421 # ifdef FEAT_QUICKFIX 6422 || wp->w_p_pvw 6423 # endif 6424 ) || wp == curwin) && wp != aucmd_win) 6425 ++count; 6426 return (count <= 1); 6427 } 6428 6429 /* 6430 * Correct the cursor line number in other windows. Used after changing the 6431 * current buffer, and before applying autocommands. 6432 * When "do_curwin" is TRUE, also check current window. 6433 */ 6434 void 6435 check_lnums(int do_curwin) 6436 { 6437 win_T *wp; 6438 tabpage_T *tp; 6439 6440 FOR_ALL_TAB_WINDOWS(tp, wp) 6441 if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) 6442 { 6443 // save the original cursor position and topline 6444 wp->w_save_cursor.w_cursor_save = wp->w_cursor; 6445 wp->w_save_cursor.w_topline_save = wp->w_topline; 6446 6447 if (wp->w_cursor.lnum > curbuf->b_ml.ml_line_count) 6448 wp->w_cursor.lnum = curbuf->b_ml.ml_line_count; 6449 if (wp->w_topline > curbuf->b_ml.ml_line_count) 6450 wp->w_topline = curbuf->b_ml.ml_line_count; 6451 6452 // save the corrected cursor position and topline 6453 wp->w_save_cursor.w_cursor_corr = wp->w_cursor; 6454 wp->w_save_cursor.w_topline_corr = wp->w_topline; 6455 } 6456 } 6457 6458 /* 6459 * Reset cursor and topline to its stored values from check_lnums(). 6460 * check_lnums() must have been called first! 6461 */ 6462 void 6463 reset_lnums() 6464 { 6465 win_T *wp; 6466 tabpage_T *tp; 6467 6468 FOR_ALL_TAB_WINDOWS(tp, wp) 6469 if (wp->w_buffer == curbuf) 6470 { 6471 // Restore the value if the autocommand didn't change it. 6472 if (EQUAL_POS(wp->w_save_cursor.w_cursor_corr, wp->w_cursor)) 6473 wp->w_cursor = wp->w_save_cursor.w_cursor_save; 6474 if (wp->w_save_cursor.w_topline_corr == wp->w_topline) 6475 wp->w_topline = wp->w_save_cursor.w_topline_save; 6476 } 6477 } 6478 6479 /* 6480 * A snapshot of the window sizes, to restore them after closing the help 6481 * window. 6482 * Only these fields are used: 6483 * fr_layout 6484 * fr_width 6485 * fr_height 6486 * fr_next 6487 * fr_child 6488 * fr_win (only valid for the old curwin, NULL otherwise) 6489 */ 6490 6491 /* 6492 * Create a snapshot of the current frame sizes. 6493 */ 6494 void 6495 make_snapshot(int idx) 6496 { 6497 clear_snapshot(curtab, idx); 6498 make_snapshot_rec(topframe, &curtab->tp_snapshot[idx]); 6499 } 6500 6501 static void 6502 make_snapshot_rec(frame_T *fr, frame_T **frp) 6503 { 6504 *frp = ALLOC_CLEAR_ONE(frame_T); 6505 if (*frp == NULL) 6506 return; 6507 (*frp)->fr_layout = fr->fr_layout; 6508 (*frp)->fr_width = fr->fr_width; 6509 (*frp)->fr_height = fr->fr_height; 6510 if (fr->fr_next != NULL) 6511 make_snapshot_rec(fr->fr_next, &((*frp)->fr_next)); 6512 if (fr->fr_child != NULL) 6513 make_snapshot_rec(fr->fr_child, &((*frp)->fr_child)); 6514 if (fr->fr_layout == FR_LEAF && fr->fr_win == curwin) 6515 (*frp)->fr_win = curwin; 6516 } 6517 6518 /* 6519 * Remove any existing snapshot. 6520 */ 6521 static void 6522 clear_snapshot(tabpage_T *tp, int idx) 6523 { 6524 clear_snapshot_rec(tp->tp_snapshot[idx]); 6525 tp->tp_snapshot[idx] = NULL; 6526 } 6527 6528 static void 6529 clear_snapshot_rec(frame_T *fr) 6530 { 6531 if (fr != NULL) 6532 { 6533 clear_snapshot_rec(fr->fr_next); 6534 clear_snapshot_rec(fr->fr_child); 6535 vim_free(fr); 6536 } 6537 } 6538 6539 /* 6540 * Restore a previously created snapshot, if there is any. 6541 * This is only done if the screen size didn't change and the window layout is 6542 * still the same. 6543 */ 6544 void 6545 restore_snapshot( 6546 int idx, 6547 int close_curwin) // closing current window 6548 { 6549 win_T *wp; 6550 6551 if (curtab->tp_snapshot[idx] != NULL 6552 && curtab->tp_snapshot[idx]->fr_width == topframe->fr_width 6553 && curtab->tp_snapshot[idx]->fr_height == topframe->fr_height 6554 && check_snapshot_rec(curtab->tp_snapshot[idx], topframe) == OK) 6555 { 6556 wp = restore_snapshot_rec(curtab->tp_snapshot[idx], topframe); 6557 win_comp_pos(); 6558 if (wp != NULL && close_curwin) 6559 win_goto(wp); 6560 redraw_all_later(NOT_VALID); 6561 } 6562 clear_snapshot(curtab, idx); 6563 } 6564 6565 /* 6566 * Check if frames "sn" and "fr" have the same layout, same following frames 6567 * and same children. And the window pointer is valid. 6568 */ 6569 static int 6570 check_snapshot_rec(frame_T *sn, frame_T *fr) 6571 { 6572 if (sn->fr_layout != fr->fr_layout 6573 || (sn->fr_next == NULL) != (fr->fr_next == NULL) 6574 || (sn->fr_child == NULL) != (fr->fr_child == NULL) 6575 || (sn->fr_next != NULL 6576 && check_snapshot_rec(sn->fr_next, fr->fr_next) == FAIL) 6577 || (sn->fr_child != NULL 6578 && check_snapshot_rec(sn->fr_child, fr->fr_child) == FAIL) 6579 || (sn->fr_win != NULL && !win_valid(sn->fr_win))) 6580 return FAIL; 6581 return OK; 6582 } 6583 6584 /* 6585 * Copy the size of snapshot frame "sn" to frame "fr". Do the same for all 6586 * following frames and children. 6587 * Returns a pointer to the old current window, or NULL. 6588 */ 6589 static win_T * 6590 restore_snapshot_rec(frame_T *sn, frame_T *fr) 6591 { 6592 win_T *wp = NULL; 6593 win_T *wp2; 6594 6595 fr->fr_height = sn->fr_height; 6596 fr->fr_width = sn->fr_width; 6597 if (fr->fr_layout == FR_LEAF) 6598 { 6599 frame_new_height(fr, fr->fr_height, FALSE, FALSE); 6600 frame_new_width(fr, fr->fr_width, FALSE, FALSE); 6601 wp = sn->fr_win; 6602 } 6603 if (sn->fr_next != NULL) 6604 { 6605 wp2 = restore_snapshot_rec(sn->fr_next, fr->fr_next); 6606 if (wp2 != NULL) 6607 wp = wp2; 6608 } 6609 if (sn->fr_child != NULL) 6610 { 6611 wp2 = restore_snapshot_rec(sn->fr_child, fr->fr_child); 6612 if (wp2 != NULL) 6613 wp = wp2; 6614 } 6615 return wp; 6616 } 6617 6618 #if defined(FEAT_GUI) || defined(PROTO) 6619 /* 6620 * Return TRUE if there is any vertically split window. 6621 */ 6622 int 6623 win_hasvertsplit(void) 6624 { 6625 frame_T *fr; 6626 6627 if (topframe->fr_layout == FR_ROW) 6628 return TRUE; 6629 6630 if (topframe->fr_layout == FR_COL) 6631 FOR_ALL_FRAMES(fr, topframe->fr_child) 6632 if (fr->fr_layout == FR_ROW) 6633 return TRUE; 6634 6635 return FALSE; 6636 } 6637 #endif 6638 6639 #if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO) 6640 int 6641 get_win_number(win_T *wp, win_T *first_win) 6642 { 6643 int i = 1; 6644 win_T *w; 6645 6646 for (w = first_win; w != NULL && w != wp; w = W_NEXT(w)) 6647 ++i; 6648 6649 if (w == NULL) 6650 return 0; 6651 else 6652 return i; 6653 } 6654 6655 int 6656 get_tab_number(tabpage_T *tp UNUSED) 6657 { 6658 int i = 1; 6659 tabpage_T *t; 6660 6661 for (t = first_tabpage; t != NULL && t != tp; t = t->tp_next) 6662 ++i; 6663 6664 if (t == NULL) 6665 return 0; 6666 else 6667 return i; 6668 } 6669 #endif 6670 6671 /* 6672 * Return TRUE if "topfrp" and its children are at the right height. 6673 */ 6674 static int 6675 frame_check_height(frame_T *topfrp, int height) 6676 { 6677 frame_T *frp; 6678 6679 if (topfrp->fr_height != height) 6680 return FALSE; 6681 6682 if (topfrp->fr_layout == FR_ROW) 6683 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6684 if (frp->fr_height != height) 6685 return FALSE; 6686 6687 return TRUE; 6688 } 6689 6690 /* 6691 * Return TRUE if "topfrp" and its children are at the right width. 6692 */ 6693 static int 6694 frame_check_width(frame_T *topfrp, int width) 6695 { 6696 frame_T *frp; 6697 6698 if (topfrp->fr_width != width) 6699 return FALSE; 6700 6701 if (topfrp->fr_layout == FR_COL) 6702 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6703 if (frp->fr_width != width) 6704 return FALSE; 6705 6706 return TRUE; 6707 } 6708 6709 #if defined(FEAT_SYN_HL) || defined(PROTO) 6710 /* 6711 * Simple int comparison function for use with qsort() 6712 */ 6713 static int 6714 int_cmp(const void *a, const void *b) 6715 { 6716 return *(const int *)a - *(const int *)b; 6717 } 6718 6719 /* 6720 * Handle setting 'colorcolumn' or 'textwidth' in window "wp". 6721 * Returns error message, NULL if it's OK. 6722 */ 6723 char * 6724 check_colorcolumn(win_T *wp) 6725 { 6726 char_u *s; 6727 int col; 6728 int count = 0; 6729 int color_cols[256]; 6730 int i; 6731 int j = 0; 6732 6733 if (wp->w_buffer == NULL) 6734 return NULL; // buffer was closed 6735 6736 for (s = wp->w_p_cc; *s != NUL && count < 255;) 6737 { 6738 if (*s == '-' || *s == '+') 6739 { 6740 // -N and +N: add to 'textwidth' 6741 col = (*s == '-') ? -1 : 1; 6742 ++s; 6743 if (!VIM_ISDIGIT(*s)) 6744 return e_invarg; 6745 col = col * getdigits(&s); 6746 if (wp->w_buffer->b_p_tw == 0) 6747 goto skip; // 'textwidth' not set, skip this item 6748 col += wp->w_buffer->b_p_tw; 6749 if (col < 0) 6750 goto skip; 6751 } 6752 else if (VIM_ISDIGIT(*s)) 6753 col = getdigits(&s); 6754 else 6755 return e_invarg; 6756 color_cols[count++] = col - 1; // 1-based to 0-based 6757 skip: 6758 if (*s == NUL) 6759 break; 6760 if (*s != ',') 6761 return e_invarg; 6762 if (*++s == NUL) 6763 return e_invarg; // illegal trailing comma as in "set cc=80," 6764 } 6765 6766 vim_free(wp->w_p_cc_cols); 6767 if (count == 0) 6768 wp->w_p_cc_cols = NULL; 6769 else 6770 { 6771 wp->w_p_cc_cols = ALLOC_MULT(int, count + 1); 6772 if (wp->w_p_cc_cols != NULL) 6773 { 6774 // sort the columns for faster usage on screen redraw inside 6775 // win_line() 6776 qsort(color_cols, count, sizeof(int), int_cmp); 6777 6778 for (i = 0; i < count; ++i) 6779 // skip duplicates 6780 if (j == 0 || wp->w_p_cc_cols[j - 1] != color_cols[i]) 6781 wp->w_p_cc_cols[j++] = color_cols[i]; 6782 wp->w_p_cc_cols[j] = -1; // end marker 6783 } 6784 } 6785 6786 return NULL; // no error 6787 } 6788 #endif 6789