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 curtab->tp_firstwin = firstwin; 3620 curtab->tp_lastwin = lastwin; 3621 curtab->tp_curwin = curwin; 3622 3623 return OK; 3624 } 3625 3626 /* 3627 * Allocate and init a window that is not a regular window. 3628 * This can only be done after the first window is fully initialized, thus it 3629 * can't be in win_alloc_first(). 3630 */ 3631 win_T * 3632 win_alloc_popup_win(void) 3633 { 3634 win_T *wp; 3635 3636 wp = win_alloc(NULL, TRUE); 3637 if (wp != NULL) 3638 { 3639 // We need to initialize options with something, using the current 3640 // window makes most sense. 3641 win_init_some(wp, curwin); 3642 3643 RESET_BINDING(wp); 3644 new_frame(wp); 3645 } 3646 return wp; 3647 } 3648 3649 /* 3650 * Initialize window "wp" to display buffer "buf". 3651 */ 3652 void 3653 win_init_popup_win(win_T *wp, buf_T *buf) 3654 { 3655 wp->w_buffer = buf; 3656 ++buf->b_nwindows; 3657 win_init_empty(wp); // set cursor and topline to safe values 3658 3659 // Make sure w_localdir and globaldir are NULL to avoid a chdir() in 3660 // win_enter_ext(). 3661 VIM_CLEAR(wp->w_localdir); 3662 } 3663 3664 /* 3665 * Allocate the first window or the first window in a new tab page. 3666 * When "oldwin" is NULL create an empty buffer for it. 3667 * When "oldwin" is not NULL copy info from it to the new window. 3668 * Return FAIL when something goes wrong (out of memory). 3669 */ 3670 static int 3671 win_alloc_firstwin(win_T *oldwin) 3672 { 3673 curwin = win_alloc(NULL, FALSE); 3674 if (oldwin == NULL) 3675 { 3676 // Very first window, need to create an empty buffer for it and 3677 // initialize from scratch. 3678 curbuf = buflist_new(NULL, NULL, 1L, BLN_LISTED); 3679 if (curwin == NULL || curbuf == NULL) 3680 return FAIL; 3681 curwin->w_buffer = curbuf; 3682 #ifdef FEAT_SYN_HL 3683 curwin->w_s = &(curbuf->b_s); 3684 #endif 3685 curbuf->b_nwindows = 1; // there is one window 3686 curwin->w_alist = &global_alist; 3687 curwin_init(); // init current window 3688 } 3689 else 3690 { 3691 // First window in new tab page, initialize it from "oldwin". 3692 win_init(curwin, oldwin, 0); 3693 3694 // We don't want cursor- and scroll-binding in the first window. 3695 RESET_BINDING(curwin); 3696 } 3697 3698 new_frame(curwin); 3699 if (curwin->w_frame == NULL) 3700 return FAIL; 3701 topframe = curwin->w_frame; 3702 topframe->fr_width = Columns; 3703 topframe->fr_height = Rows - p_ch; 3704 3705 return OK; 3706 } 3707 3708 /* 3709 * Create a frame for window "wp". 3710 */ 3711 static void 3712 new_frame(win_T *wp) 3713 { 3714 frame_T *frp = ALLOC_CLEAR_ONE(frame_T); 3715 3716 wp->w_frame = frp; 3717 if (frp != NULL) 3718 { 3719 frp->fr_layout = FR_LEAF; 3720 frp->fr_win = wp; 3721 } 3722 } 3723 3724 /* 3725 * Initialize the window and frame size to the maximum. 3726 */ 3727 void 3728 win_init_size(void) 3729 { 3730 firstwin->w_height = ROWS_AVAIL; 3731 topframe->fr_height = ROWS_AVAIL; 3732 firstwin->w_width = Columns; 3733 topframe->fr_width = Columns; 3734 } 3735 3736 /* 3737 * Allocate a new tabpage_T and init the values. 3738 * Returns NULL when out of memory. 3739 */ 3740 static tabpage_T * 3741 alloc_tabpage(void) 3742 { 3743 tabpage_T *tp; 3744 # ifdef FEAT_GUI 3745 int i; 3746 # endif 3747 3748 3749 tp = ALLOC_CLEAR_ONE(tabpage_T); 3750 if (tp == NULL) 3751 return NULL; 3752 3753 # ifdef FEAT_EVAL 3754 // init t: variables 3755 tp->tp_vars = dict_alloc(); 3756 if (tp->tp_vars == NULL) 3757 { 3758 vim_free(tp); 3759 return NULL; 3760 } 3761 init_var_dict(tp->tp_vars, &tp->tp_winvar, VAR_SCOPE); 3762 # endif 3763 3764 # ifdef FEAT_GUI 3765 for (i = 0; i < 3; i++) 3766 tp->tp_prev_which_scrollbars[i] = -1; 3767 # endif 3768 # ifdef FEAT_DIFF 3769 tp->tp_diff_invalid = TRUE; 3770 # endif 3771 tp->tp_ch_used = p_ch; 3772 3773 return tp; 3774 } 3775 3776 void 3777 free_tabpage(tabpage_T *tp) 3778 { 3779 int idx; 3780 3781 # ifdef FEAT_DIFF 3782 diff_clear(tp); 3783 # endif 3784 # ifdef FEAT_PROP_POPUP 3785 while (tp->tp_first_popupwin != NULL) 3786 popup_close_tabpage(tp, tp->tp_first_popupwin->w_id); 3787 #endif 3788 for (idx = 0; idx < SNAP_COUNT; ++idx) 3789 clear_snapshot(tp, idx); 3790 #ifdef FEAT_EVAL 3791 vars_clear(&tp->tp_vars->dv_hashtab); // free all t: variables 3792 hash_init(&tp->tp_vars->dv_hashtab); 3793 unref_var_dict(tp->tp_vars); 3794 #endif 3795 3796 vim_free(tp->tp_localdir); 3797 3798 #ifdef FEAT_PYTHON 3799 python_tabpage_free(tp); 3800 #endif 3801 3802 #ifdef FEAT_PYTHON3 3803 python3_tabpage_free(tp); 3804 #endif 3805 3806 vim_free(tp); 3807 } 3808 3809 /* 3810 * Create a new Tab page with one window. 3811 * It will edit the current buffer, like after ":split". 3812 * When "after" is 0 put it just after the current Tab page. 3813 * Otherwise put it just before tab page "after". 3814 * Return FAIL or OK. 3815 */ 3816 int 3817 win_new_tabpage(int after) 3818 { 3819 tabpage_T *tp = curtab; 3820 tabpage_T *newtp; 3821 int n; 3822 3823 newtp = alloc_tabpage(); 3824 if (newtp == NULL) 3825 return FAIL; 3826 3827 // Remember the current windows in this Tab page. 3828 if (leave_tabpage(curbuf, TRUE) == FAIL) 3829 { 3830 vim_free(newtp); 3831 return FAIL; 3832 } 3833 curtab = newtp; 3834 3835 newtp->tp_localdir = (tp->tp_localdir == NULL) 3836 ? NULL : vim_strsave(tp->tp_localdir); 3837 // Create a new empty window. 3838 if (win_alloc_firstwin(tp->tp_curwin) == OK) 3839 { 3840 // Make the new Tab page the new topframe. 3841 if (after == 1) 3842 { 3843 // New tab page becomes the first one. 3844 newtp->tp_next = first_tabpage; 3845 first_tabpage = newtp; 3846 } 3847 else 3848 { 3849 if (after > 0) 3850 { 3851 // Put new tab page before tab page "after". 3852 n = 2; 3853 for (tp = first_tabpage; tp->tp_next != NULL 3854 && n < after; tp = tp->tp_next) 3855 ++n; 3856 } 3857 newtp->tp_next = tp->tp_next; 3858 tp->tp_next = newtp; 3859 } 3860 newtp->tp_firstwin = newtp->tp_lastwin = newtp->tp_curwin = curwin; 3861 3862 win_init_size(); 3863 firstwin->w_winrow = tabline_height(); 3864 win_comp_scroll(curwin); 3865 3866 newtp->tp_topframe = topframe; 3867 last_status(FALSE); 3868 3869 #if defined(FEAT_GUI) 3870 // When 'guioptions' includes 'L' or 'R' may have to remove or add 3871 // scrollbars. Have to update them anyway. 3872 gui_may_update_scrollbars(); 3873 #endif 3874 #ifdef FEAT_JOB_CHANNEL 3875 entering_window(curwin); 3876 #endif 3877 3878 redraw_all_later(NOT_VALID); 3879 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 3880 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 3881 apply_autocmds(EVENT_TABNEW, NULL, NULL, FALSE, curbuf); 3882 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3883 return OK; 3884 } 3885 3886 // Failed, get back the previous Tab page 3887 enter_tabpage(curtab, curbuf, TRUE, TRUE); 3888 return FAIL; 3889 } 3890 3891 /* 3892 * Open a new tab page if ":tab cmd" was used. It will edit the same buffer, 3893 * like with ":split". 3894 * Returns OK if a new tab page was created, FAIL otherwise. 3895 */ 3896 static int 3897 may_open_tabpage(void) 3898 { 3899 int n = (cmdmod.tab == 0) ? postponed_split_tab : cmdmod.tab; 3900 3901 if (n != 0) 3902 { 3903 cmdmod.tab = 0; // reset it to avoid doing it twice 3904 postponed_split_tab = 0; 3905 return win_new_tabpage(n); 3906 } 3907 return FAIL; 3908 } 3909 3910 /* 3911 * Create up to "maxcount" tabpages with empty windows. 3912 * Returns the number of resulting tab pages. 3913 */ 3914 int 3915 make_tabpages(int maxcount) 3916 { 3917 int count = maxcount; 3918 int todo; 3919 3920 // Limit to 'tabpagemax' tabs. 3921 if (count > p_tpm) 3922 count = p_tpm; 3923 3924 /* 3925 * Don't execute autocommands while creating the tab pages. Must do that 3926 * when putting the buffers in the windows. 3927 */ 3928 block_autocmds(); 3929 3930 for (todo = count - 1; todo > 0; --todo) 3931 if (win_new_tabpage(0) == FAIL) 3932 break; 3933 3934 unblock_autocmds(); 3935 3936 // return actual number of tab pages 3937 return (count - todo); 3938 } 3939 3940 /* 3941 * Return TRUE when "tpc" points to a valid tab page. 3942 */ 3943 int 3944 valid_tabpage(tabpage_T *tpc) 3945 { 3946 tabpage_T *tp; 3947 3948 FOR_ALL_TABPAGES(tp) 3949 if (tp == tpc) 3950 return TRUE; 3951 return FALSE; 3952 } 3953 3954 /* 3955 * Return TRUE when "tpc" points to a valid tab page and at least one window is 3956 * valid. 3957 */ 3958 int 3959 valid_tabpage_win(tabpage_T *tpc) 3960 { 3961 tabpage_T *tp; 3962 win_T *wp; 3963 3964 FOR_ALL_TABPAGES(tp) 3965 { 3966 if (tp == tpc) 3967 { 3968 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 3969 { 3970 if (win_valid_any_tab(wp)) 3971 return TRUE; 3972 } 3973 return FALSE; 3974 } 3975 } 3976 // shouldn't happen 3977 return FALSE; 3978 } 3979 3980 /* 3981 * Close tabpage "tab", assuming it has no windows in it. 3982 * There must be another tabpage or this will crash. 3983 */ 3984 void 3985 close_tabpage(tabpage_T *tab) 3986 { 3987 tabpage_T *ptp; 3988 3989 if (tab == first_tabpage) 3990 { 3991 first_tabpage = tab->tp_next; 3992 ptp = first_tabpage; 3993 } 3994 else 3995 { 3996 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tab; 3997 ptp = ptp->tp_next) 3998 ; 3999 assert(ptp != NULL); 4000 ptp->tp_next = tab->tp_next; 4001 } 4002 4003 goto_tabpage_tp(ptp, FALSE, FALSE); 4004 free_tabpage(tab); 4005 } 4006 4007 /* 4008 * Find tab page "n" (first one is 1). Returns NULL when not found. 4009 */ 4010 tabpage_T * 4011 find_tabpage(int n) 4012 { 4013 tabpage_T *tp; 4014 int i = 1; 4015 4016 if (n == 0) 4017 return curtab; 4018 4019 for (tp = first_tabpage; tp != NULL && i != n; tp = tp->tp_next) 4020 ++i; 4021 return tp; 4022 } 4023 4024 /* 4025 * Get index of tab page "tp". First one has index 1. 4026 * When not found returns number of tab pages plus one. 4027 */ 4028 int 4029 tabpage_index(tabpage_T *ftp) 4030 { 4031 int i = 1; 4032 tabpage_T *tp; 4033 4034 for (tp = first_tabpage; tp != NULL && tp != ftp; tp = tp->tp_next) 4035 ++i; 4036 return i; 4037 } 4038 4039 /* 4040 * Prepare for leaving the current tab page. 4041 * When autocommands change "curtab" we don't leave the tab page and return 4042 * FAIL. 4043 * Careful: When OK is returned need to get a new tab page very very soon! 4044 */ 4045 static int 4046 leave_tabpage( 4047 buf_T *new_curbuf UNUSED, // what is going to be the new curbuf, 4048 // NULL if unknown 4049 int trigger_leave_autocmds UNUSED) 4050 { 4051 tabpage_T *tp = curtab; 4052 4053 #ifdef FEAT_JOB_CHANNEL 4054 leaving_window(curwin); 4055 #endif 4056 reset_VIsual_and_resel(); // stop Visual mode 4057 if (trigger_leave_autocmds) 4058 { 4059 if (new_curbuf != curbuf) 4060 { 4061 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4062 if (curtab != tp) 4063 return FAIL; 4064 } 4065 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4066 if (curtab != tp) 4067 return FAIL; 4068 apply_autocmds(EVENT_TABLEAVE, NULL, NULL, FALSE, curbuf); 4069 if (curtab != tp) 4070 return FAIL; 4071 } 4072 #if defined(FEAT_GUI) 4073 // Remove the scrollbars. They may be added back later. 4074 if (gui.in_use) 4075 gui_remove_scrollbars(); 4076 #endif 4077 tp->tp_curwin = curwin; 4078 tp->tp_prevwin = prevwin; 4079 tp->tp_firstwin = firstwin; 4080 tp->tp_lastwin = lastwin; 4081 tp->tp_old_Rows = Rows; 4082 tp->tp_old_Columns = Columns; 4083 firstwin = NULL; 4084 lastwin = NULL; 4085 return OK; 4086 } 4087 4088 /* 4089 * Start using tab page "tp". 4090 * Only to be used after leave_tabpage() or freeing the current tab page. 4091 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4092 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4093 */ 4094 static void 4095 enter_tabpage( 4096 tabpage_T *tp, 4097 buf_T *old_curbuf UNUSED, 4098 int trigger_enter_autocmds, 4099 int trigger_leave_autocmds) 4100 { 4101 int row; 4102 int old_off = tp->tp_firstwin->w_winrow; 4103 win_T *next_prevwin = tp->tp_prevwin; 4104 4105 curtab = tp; 4106 firstwin = tp->tp_firstwin; 4107 lastwin = tp->tp_lastwin; 4108 topframe = tp->tp_topframe; 4109 4110 // We would like doing the TabEnter event first, but we don't have a 4111 // valid current window yet, which may break some commands. 4112 // This triggers autocommands, thus may make "tp" invalid. 4113 win_enter_ext(tp->tp_curwin, FALSE, TRUE, FALSE, 4114 trigger_enter_autocmds, trigger_leave_autocmds); 4115 prevwin = next_prevwin; 4116 4117 last_status(FALSE); // status line may appear or disappear 4118 row = win_comp_pos(); // recompute w_winrow for all windows 4119 #ifdef FEAT_DIFF 4120 diff_need_scrollbind = TRUE; 4121 #endif 4122 4123 // The tabpage line may have appeared or disappeared, may need to resize 4124 // the frames for that. When the Vim window was resized need to update 4125 // frame sizes too. Use the stored value of p_ch, so that it can be 4126 // different for each tab page. 4127 if (p_ch != curtab->tp_ch_used) 4128 clear_cmdline = TRUE; 4129 p_ch = curtab->tp_ch_used; 4130 4131 // When cmdheight is changed in a tab page with '<C-w>-', cmdline_row is 4132 // changed but p_ch and tp_ch_used are not changed. Thus we also need to 4133 // check cmdline_row. 4134 if ((row < cmdline_row) && (cmdline_row <= Rows - p_ch)) 4135 clear_cmdline = TRUE; 4136 4137 if (curtab->tp_old_Rows != Rows || (old_off != firstwin->w_winrow 4138 #ifdef FEAT_GUI_TABLINE 4139 && !gui_use_tabline() 4140 #endif 4141 )) 4142 shell_new_rows(); 4143 if (curtab->tp_old_Columns != Columns && starting == 0) 4144 shell_new_columns(); // update window widths 4145 4146 #if defined(FEAT_GUI) 4147 // When 'guioptions' includes 'L' or 'R' may have to remove or add 4148 // scrollbars. Have to update them anyway. 4149 gui_may_update_scrollbars(); 4150 #endif 4151 4152 // Apply autocommands after updating the display, when 'rows' and 4153 // 'columns' have been set correctly. 4154 if (trigger_enter_autocmds) 4155 { 4156 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 4157 if (old_curbuf != curbuf) 4158 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4159 } 4160 4161 redraw_all_later(NOT_VALID); 4162 } 4163 4164 /* 4165 * Go to tab page "n". For ":tab N" and "Ngt". 4166 * When "n" is 9999 go to the last tab page. 4167 */ 4168 void 4169 goto_tabpage(int n) 4170 { 4171 tabpage_T *tp = NULL; // shut up compiler 4172 tabpage_T *ttp; 4173 int i; 4174 4175 if (text_locked()) 4176 { 4177 // Not allowed when editing the command line. 4178 text_locked_msg(); 4179 return; 4180 } 4181 4182 // If there is only one it can't work. 4183 if (first_tabpage->tp_next == NULL) 4184 { 4185 if (n > 1) 4186 beep_flush(); 4187 return; 4188 } 4189 4190 if (n == 0) 4191 { 4192 // No count, go to next tab page, wrap around end. 4193 if (curtab->tp_next == NULL) 4194 tp = first_tabpage; 4195 else 4196 tp = curtab->tp_next; 4197 } 4198 else if (n < 0) 4199 { 4200 // "gT": go to previous tab page, wrap around end. "N gT" repeats 4201 // this N times. 4202 ttp = curtab; 4203 for (i = n; i < 0; ++i) 4204 { 4205 for (tp = first_tabpage; tp->tp_next != ttp && tp->tp_next != NULL; 4206 tp = tp->tp_next) 4207 ; 4208 ttp = tp; 4209 } 4210 } 4211 else if (n == 9999) 4212 { 4213 // Go to last tab page. 4214 for (tp = first_tabpage; tp->tp_next != NULL; tp = tp->tp_next) 4215 ; 4216 } 4217 else 4218 { 4219 // Go to tab page "n". 4220 tp = find_tabpage(n); 4221 if (tp == NULL) 4222 { 4223 beep_flush(); 4224 return; 4225 } 4226 } 4227 4228 goto_tabpage_tp(tp, TRUE, TRUE); 4229 4230 #ifdef FEAT_GUI_TABLINE 4231 if (gui_use_tabline()) 4232 gui_mch_set_curtab(tabpage_index(curtab)); 4233 #endif 4234 } 4235 4236 /* 4237 * Go to tabpage "tp". 4238 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4239 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4240 * Note: doesn't update the GUI tab. 4241 */ 4242 void 4243 goto_tabpage_tp( 4244 tabpage_T *tp, 4245 int trigger_enter_autocmds, 4246 int trigger_leave_autocmds) 4247 { 4248 // Don't repeat a message in another tab page. 4249 set_keep_msg(NULL, 0); 4250 4251 if (tp != curtab && leave_tabpage(tp->tp_curwin->w_buffer, 4252 trigger_leave_autocmds) == OK) 4253 { 4254 if (valid_tabpage(tp)) 4255 enter_tabpage(tp, curbuf, trigger_enter_autocmds, 4256 trigger_leave_autocmds); 4257 else 4258 enter_tabpage(curtab, curbuf, trigger_enter_autocmds, 4259 trigger_leave_autocmds); 4260 } 4261 } 4262 4263 /* 4264 * Enter window "wp" in tab page "tp". 4265 * Also updates the GUI tab. 4266 */ 4267 void 4268 goto_tabpage_win(tabpage_T *tp, win_T *wp) 4269 { 4270 goto_tabpage_tp(tp, TRUE, TRUE); 4271 if (curtab == tp && win_valid(wp)) 4272 { 4273 win_enter(wp, TRUE); 4274 # ifdef FEAT_GUI_TABLINE 4275 if (gui_use_tabline()) 4276 gui_mch_set_curtab(tabpage_index(curtab)); 4277 # endif 4278 } 4279 } 4280 4281 /* 4282 * Move the current tab page to after tab page "nr". 4283 */ 4284 void 4285 tabpage_move(int nr) 4286 { 4287 int n = 1; 4288 tabpage_T *tp, *tp_dst; 4289 4290 if (first_tabpage->tp_next == NULL) 4291 return; 4292 4293 for (tp = first_tabpage; tp->tp_next != NULL && n < nr; tp = tp->tp_next) 4294 ++n; 4295 4296 if (tp == curtab || (nr > 0 && tp->tp_next != NULL 4297 && tp->tp_next == curtab)) 4298 return; 4299 4300 tp_dst = tp; 4301 4302 // Remove the current tab page from the list of tab pages. 4303 if (curtab == first_tabpage) 4304 first_tabpage = curtab->tp_next; 4305 else 4306 { 4307 FOR_ALL_TABPAGES(tp) 4308 if (tp->tp_next == curtab) 4309 break; 4310 if (tp == NULL) // "cannot happen" 4311 return; 4312 tp->tp_next = curtab->tp_next; 4313 } 4314 4315 // Re-insert it at the specified position. 4316 if (nr <= 0) 4317 { 4318 curtab->tp_next = first_tabpage; 4319 first_tabpage = curtab; 4320 } 4321 else 4322 { 4323 curtab->tp_next = tp_dst->tp_next; 4324 tp_dst->tp_next = curtab; 4325 } 4326 4327 // Need to redraw the tabline. Tab page contents doesn't change. 4328 redraw_tabline = TRUE; 4329 } 4330 4331 4332 /* 4333 * Go to another window. 4334 * When jumping to another buffer, stop Visual mode. Do this before 4335 * changing windows so we can yank the selection into the '*' register. 4336 * When jumping to another window on the same buffer, adjust its cursor 4337 * position to keep the same Visual area. 4338 */ 4339 void 4340 win_goto(win_T *wp) 4341 { 4342 #ifdef FEAT_CONCEAL 4343 win_T *owp = curwin; 4344 #endif 4345 4346 if (ERROR_IF_POPUP_WINDOW) 4347 return; 4348 if (text_locked()) 4349 { 4350 beep_flush(); 4351 text_locked_msg(); 4352 return; 4353 } 4354 if (curbuf_locked()) 4355 return; 4356 4357 if (wp->w_buffer != curbuf) 4358 reset_VIsual_and_resel(); 4359 else if (VIsual_active) 4360 wp->w_cursor = curwin->w_cursor; 4361 4362 #ifdef FEAT_GUI 4363 need_mouse_correct = TRUE; 4364 #endif 4365 win_enter(wp, TRUE); 4366 4367 #ifdef FEAT_CONCEAL 4368 // Conceal cursor line in previous window, unconceal in current window. 4369 if (win_valid(owp) && owp->w_p_cole > 0 && !msg_scrolled) 4370 redrawWinline(owp, owp->w_cursor.lnum); 4371 if (curwin->w_p_cole > 0 && !msg_scrolled) 4372 need_cursor_line_redraw = TRUE; 4373 #endif 4374 } 4375 4376 #if defined(FEAT_PERL) || defined(PROTO) 4377 /* 4378 * Find window number "winnr" (counting top to bottom). 4379 */ 4380 win_T * 4381 win_find_nr(int winnr) 4382 { 4383 win_T *wp; 4384 4385 FOR_ALL_WINDOWS(wp) 4386 if (--winnr == 0) 4387 break; 4388 return wp; 4389 } 4390 #endif 4391 4392 #if ((defined(FEAT_PYTHON) || defined(FEAT_PYTHON3))) || defined(PROTO) 4393 /* 4394 * Find the tabpage for window "win". 4395 */ 4396 tabpage_T * 4397 win_find_tabpage(win_T *win) 4398 { 4399 win_T *wp; 4400 tabpage_T *tp; 4401 4402 FOR_ALL_TAB_WINDOWS(tp, wp) 4403 if (wp == win) 4404 return tp; 4405 return NULL; 4406 } 4407 #endif 4408 4409 /* 4410 * Get the above or below neighbor window of the specified window. 4411 * up - TRUE for the above neighbor 4412 * count - nth neighbor window 4413 * Returns the specified window if the neighbor is not found. 4414 */ 4415 win_T * 4416 win_vert_neighbor(tabpage_T *tp, win_T *wp, int up, long count) 4417 { 4418 frame_T *fr; 4419 frame_T *nfr; 4420 frame_T *foundfr; 4421 4422 foundfr = wp->w_frame; 4423 while (count--) 4424 { 4425 /* 4426 * First go upwards in the tree of frames until we find a upwards or 4427 * downwards neighbor. 4428 */ 4429 fr = foundfr; 4430 for (;;) 4431 { 4432 if (fr == tp->tp_topframe) 4433 goto end; 4434 if (up) 4435 nfr = fr->fr_prev; 4436 else 4437 nfr = fr->fr_next; 4438 if (fr->fr_parent->fr_layout == FR_COL && nfr != NULL) 4439 break; 4440 fr = fr->fr_parent; 4441 } 4442 4443 /* 4444 * Now go downwards to find the bottom or top frame in it. 4445 */ 4446 for (;;) 4447 { 4448 if (nfr->fr_layout == FR_LEAF) 4449 { 4450 foundfr = nfr; 4451 break; 4452 } 4453 fr = nfr->fr_child; 4454 if (nfr->fr_layout == FR_ROW) 4455 { 4456 // Find the frame at the cursor row. 4457 while (fr->fr_next != NULL 4458 && frame2win(fr)->w_wincol + fr->fr_width 4459 <= wp->w_wincol + wp->w_wcol) 4460 fr = fr->fr_next; 4461 } 4462 if (nfr->fr_layout == FR_COL && up) 4463 while (fr->fr_next != NULL) 4464 fr = fr->fr_next; 4465 nfr = fr; 4466 } 4467 } 4468 end: 4469 return foundfr != NULL ? foundfr->fr_win : NULL; 4470 } 4471 4472 /* 4473 * Move to window above or below "count" times. 4474 */ 4475 static void 4476 win_goto_ver( 4477 int up, // TRUE to go to win above 4478 long count) 4479 { 4480 win_T *win; 4481 4482 win = win_vert_neighbor(curtab, curwin, up, count); 4483 if (win != NULL) 4484 win_goto(win); 4485 } 4486 4487 /* 4488 * Get the left or right neighbor window of the specified window. 4489 * left - TRUE for the left neighbor 4490 * count - nth neighbor window 4491 * Returns the specified window if the neighbor is not found. 4492 */ 4493 win_T * 4494 win_horz_neighbor(tabpage_T *tp, win_T *wp, int left, long count) 4495 { 4496 frame_T *fr; 4497 frame_T *nfr; 4498 frame_T *foundfr; 4499 4500 foundfr = wp->w_frame; 4501 while (count--) 4502 { 4503 /* 4504 * First go upwards in the tree of frames until we find a left or 4505 * right neighbor. 4506 */ 4507 fr = foundfr; 4508 for (;;) 4509 { 4510 if (fr == tp->tp_topframe) 4511 goto end; 4512 if (left) 4513 nfr = fr->fr_prev; 4514 else 4515 nfr = fr->fr_next; 4516 if (fr->fr_parent->fr_layout == FR_ROW && nfr != NULL) 4517 break; 4518 fr = fr->fr_parent; 4519 } 4520 4521 /* 4522 * Now go downwards to find the leftmost or rightmost frame in it. 4523 */ 4524 for (;;) 4525 { 4526 if (nfr->fr_layout == FR_LEAF) 4527 { 4528 foundfr = nfr; 4529 break; 4530 } 4531 fr = nfr->fr_child; 4532 if (nfr->fr_layout == FR_COL) 4533 { 4534 // Find the frame at the cursor row. 4535 while (fr->fr_next != NULL 4536 && frame2win(fr)->w_winrow + fr->fr_height 4537 <= wp->w_winrow + wp->w_wrow) 4538 fr = fr->fr_next; 4539 } 4540 if (nfr->fr_layout == FR_ROW && left) 4541 while (fr->fr_next != NULL) 4542 fr = fr->fr_next; 4543 nfr = fr; 4544 } 4545 } 4546 end: 4547 return foundfr != NULL ? foundfr->fr_win : NULL; 4548 } 4549 4550 /* 4551 * Move to left or right window. 4552 */ 4553 static void 4554 win_goto_hor( 4555 int left, // TRUE to go to left win 4556 long count) 4557 { 4558 win_T *win; 4559 4560 win = win_horz_neighbor(curtab, curwin, left, count); 4561 if (win != NULL) 4562 win_goto(win); 4563 } 4564 4565 /* 4566 * Make window "wp" the current window. 4567 */ 4568 void 4569 win_enter(win_T *wp, int undo_sync) 4570 { 4571 win_enter_ext(wp, undo_sync, FALSE, FALSE, TRUE, TRUE); 4572 } 4573 4574 /* 4575 * Make window wp the current window. 4576 * Can be called with "curwin_invalid" TRUE, which means that curwin has just 4577 * been closed and isn't valid. 4578 */ 4579 static void 4580 win_enter_ext( 4581 win_T *wp, 4582 int undo_sync, 4583 int curwin_invalid, 4584 int trigger_new_autocmds, 4585 int trigger_enter_autocmds, 4586 int trigger_leave_autocmds) 4587 { 4588 int other_buffer = FALSE; 4589 4590 if (wp == curwin && !curwin_invalid) // nothing to do 4591 return; 4592 4593 #ifdef FEAT_JOB_CHANNEL 4594 if (!curwin_invalid) 4595 leaving_window(curwin); 4596 #endif 4597 4598 if (!curwin_invalid && trigger_leave_autocmds) 4599 { 4600 /* 4601 * Be careful: If autocommands delete the window, return now. 4602 */ 4603 if (wp->w_buffer != curbuf) 4604 { 4605 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4606 other_buffer = TRUE; 4607 if (!win_valid(wp)) 4608 return; 4609 } 4610 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4611 if (!win_valid(wp)) 4612 return; 4613 #ifdef FEAT_EVAL 4614 // autocmds may abort script processing 4615 if (aborting()) 4616 return; 4617 #endif 4618 } 4619 4620 // sync undo before leaving the current buffer 4621 if (undo_sync && curbuf != wp->w_buffer) 4622 u_sync(FALSE); 4623 4624 // Might need to scroll the old window before switching, e.g., when the 4625 // cursor was moved. 4626 update_topline(); 4627 4628 // may have to copy the buffer options when 'cpo' contains 'S' 4629 if (wp->w_buffer != curbuf) 4630 buf_copy_options(wp->w_buffer, BCO_ENTER | BCO_NOHELP); 4631 if (!curwin_invalid) 4632 { 4633 prevwin = curwin; // remember for CTRL-W p 4634 curwin->w_redr_status = TRUE; 4635 } 4636 curwin = wp; 4637 curbuf = wp->w_buffer; 4638 check_cursor(); 4639 if (!virtual_active()) 4640 curwin->w_cursor.coladd = 0; 4641 changed_line_abv_curs(); // assume cursor position needs updating 4642 4643 if (curwin->w_localdir != NULL || curtab->tp_localdir != NULL) 4644 { 4645 char_u *dirname; 4646 4647 // Window or tab has a local directory: Save current directory as 4648 // global directory (unless that was done already) and change to the 4649 // local directory. 4650 if (globaldir == NULL) 4651 { 4652 char_u cwd[MAXPATHL]; 4653 4654 if (mch_dirname(cwd, MAXPATHL) == OK) 4655 globaldir = vim_strsave(cwd); 4656 } 4657 if (curwin->w_localdir != NULL) 4658 dirname = curwin->w_localdir; 4659 else 4660 dirname = curtab->tp_localdir; 4661 4662 if (mch_chdir((char *)dirname) == 0) 4663 shorten_fnames(TRUE); 4664 } 4665 else if (globaldir != NULL) 4666 { 4667 // Window doesn't have a local directory and we are not in the global 4668 // directory: Change to the global directory. 4669 vim_ignored = mch_chdir((char *)globaldir); 4670 VIM_CLEAR(globaldir); 4671 shorten_fnames(TRUE); 4672 } 4673 4674 #ifdef FEAT_JOB_CHANNEL 4675 entering_window(curwin); 4676 #endif 4677 // Careful: autocommands may close the window and make "wp" invalid 4678 if (trigger_new_autocmds) 4679 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 4680 if (trigger_enter_autocmds) 4681 { 4682 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 4683 if (other_buffer) 4684 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4685 } 4686 4687 #ifdef FEAT_TITLE 4688 maketitle(); 4689 #endif 4690 curwin->w_redr_status = TRUE; 4691 #ifdef FEAT_TERMINAL 4692 if (bt_terminal(curwin->w_buffer)) 4693 // terminal is likely in another mode 4694 redraw_mode = TRUE; 4695 #endif 4696 redraw_tabline = TRUE; 4697 if (restart_edit) 4698 redraw_later(VALID); // causes status line redraw 4699 4700 // set window height to desired minimal value 4701 if (curwin->w_height < p_wh && !curwin->w_p_wfh 4702 #ifdef FEAT_PROP_POPUP 4703 && !popup_is_popup(curwin) 4704 #endif 4705 ) 4706 win_setheight((int)p_wh); 4707 else if (curwin->w_height == 0) 4708 win_setheight(1); 4709 4710 // set window width to desired minimal value 4711 if (curwin->w_width < p_wiw && !curwin->w_p_wfw) 4712 win_setwidth((int)p_wiw); 4713 4714 setmouse(); // in case jumped to/from help buffer 4715 4716 // Change directories when the 'acd' option is set. 4717 DO_AUTOCHDIR; 4718 } 4719 4720 4721 /* 4722 * Jump to the first open window that contains buffer "buf", if one exists. 4723 * Returns a pointer to the window found, otherwise NULL. 4724 */ 4725 win_T * 4726 buf_jump_open_win(buf_T *buf) 4727 { 4728 win_T *wp = NULL; 4729 4730 if (curwin->w_buffer == buf) 4731 wp = curwin; 4732 else 4733 FOR_ALL_WINDOWS(wp) 4734 if (wp->w_buffer == buf) 4735 break; 4736 if (wp != NULL) 4737 win_enter(wp, FALSE); 4738 return wp; 4739 } 4740 4741 /* 4742 * Jump to the first open window in any tab page that contains buffer "buf", 4743 * if one exists. 4744 * Returns a pointer to the window found, otherwise NULL. 4745 */ 4746 win_T * 4747 buf_jump_open_tab(buf_T *buf) 4748 { 4749 win_T *wp = buf_jump_open_win(buf); 4750 tabpage_T *tp; 4751 4752 if (wp != NULL) 4753 return wp; 4754 4755 FOR_ALL_TABPAGES(tp) 4756 if (tp != curtab) 4757 { 4758 for (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next) 4759 if (wp->w_buffer == buf) 4760 break; 4761 if (wp != NULL) 4762 { 4763 goto_tabpage_win(tp, wp); 4764 if (curwin != wp) 4765 wp = NULL; // something went wrong 4766 break; 4767 } 4768 } 4769 return wp; 4770 } 4771 4772 static int last_win_id = LOWEST_WIN_ID - 1; 4773 4774 /* 4775 * Allocate a window structure and link it in the window list when "hidden" is 4776 * FALSE. 4777 */ 4778 static win_T * 4779 win_alloc(win_T *after UNUSED, int hidden UNUSED) 4780 { 4781 win_T *new_wp; 4782 4783 /* 4784 * allocate window structure and linesizes arrays 4785 */ 4786 new_wp = ALLOC_CLEAR_ONE(win_T); 4787 if (new_wp == NULL) 4788 return NULL; 4789 4790 if (win_alloc_lines(new_wp) == FAIL) 4791 { 4792 vim_free(new_wp); 4793 return NULL; 4794 } 4795 4796 new_wp->w_id = ++last_win_id; 4797 4798 #ifdef FEAT_EVAL 4799 // init w: variables 4800 new_wp->w_vars = dict_alloc(); 4801 if (new_wp->w_vars == NULL) 4802 { 4803 win_free_lsize(new_wp); 4804 vim_free(new_wp); 4805 return NULL; 4806 } 4807 init_var_dict(new_wp->w_vars, &new_wp->w_winvar, VAR_SCOPE); 4808 #endif 4809 4810 // Don't execute autocommands while the window is not properly 4811 // initialized yet. gui_create_scrollbar() may trigger a FocusGained 4812 // event. 4813 block_autocmds(); 4814 4815 /* 4816 * link the window in the window list 4817 */ 4818 if (!hidden) 4819 win_append(after, new_wp); 4820 new_wp->w_wincol = 0; 4821 new_wp->w_width = Columns; 4822 4823 // position the display and the cursor at the top of the file. 4824 new_wp->w_topline = 1; 4825 #ifdef FEAT_DIFF 4826 new_wp->w_topfill = 0; 4827 #endif 4828 new_wp->w_botline = 2; 4829 new_wp->w_cursor.lnum = 1; 4830 new_wp->w_scbind_pos = 1; 4831 4832 // use global option value for global-local options 4833 new_wp->w_p_so = -1; 4834 new_wp->w_p_siso = -1; 4835 4836 // We won't calculate w_fraction until resizing the window 4837 new_wp->w_fraction = 0; 4838 new_wp->w_prev_fraction_row = -1; 4839 4840 #ifdef FEAT_GUI 4841 if (gui.in_use) 4842 { 4843 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_LEFT], 4844 SBAR_LEFT, new_wp); 4845 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_RIGHT], 4846 SBAR_RIGHT, new_wp); 4847 } 4848 #endif 4849 #ifdef FEAT_FOLDING 4850 foldInitWin(new_wp); 4851 #endif 4852 unblock_autocmds(); 4853 #ifdef FEAT_SEARCH_EXTRA 4854 new_wp->w_match_head = NULL; 4855 new_wp->w_next_match_id = 4; 4856 #endif 4857 return new_wp; 4858 } 4859 4860 /* 4861 * Remove window 'wp' from the window list and free the structure. 4862 */ 4863 static void 4864 win_free( 4865 win_T *wp, 4866 tabpage_T *tp) // tab page "win" is in, NULL for current 4867 { 4868 int i; 4869 buf_T *buf; 4870 wininfo_T *wip; 4871 4872 #ifdef FEAT_FOLDING 4873 clearFolding(wp); 4874 #endif 4875 4876 // reduce the reference count to the argument list. 4877 alist_unlink(wp->w_alist); 4878 4879 // Don't execute autocommands while the window is halfway being deleted. 4880 // gui_mch_destroy_scrollbar() may trigger a FocusGained event. 4881 block_autocmds(); 4882 4883 #ifdef FEAT_LUA 4884 lua_window_free(wp); 4885 #endif 4886 4887 #ifdef FEAT_MZSCHEME 4888 mzscheme_window_free(wp); 4889 #endif 4890 4891 #ifdef FEAT_PERL 4892 perl_win_free(wp); 4893 #endif 4894 4895 #ifdef FEAT_PYTHON 4896 python_window_free(wp); 4897 #endif 4898 4899 #ifdef FEAT_PYTHON3 4900 python3_window_free(wp); 4901 #endif 4902 4903 #ifdef FEAT_TCL 4904 tcl_window_free(wp); 4905 #endif 4906 4907 #ifdef FEAT_RUBY 4908 ruby_window_free(wp); 4909 #endif 4910 4911 clear_winopt(&wp->w_onebuf_opt); 4912 clear_winopt(&wp->w_allbuf_opt); 4913 4914 #ifdef FEAT_EVAL 4915 vars_clear(&wp->w_vars->dv_hashtab); // free all w: variables 4916 hash_init(&wp->w_vars->dv_hashtab); 4917 unref_var_dict(wp->w_vars); 4918 #endif 4919 4920 { 4921 tabpage_T *ttp; 4922 4923 if (prevwin == wp) 4924 prevwin = NULL; 4925 FOR_ALL_TABPAGES(ttp) 4926 if (ttp->tp_prevwin == wp) 4927 ttp->tp_prevwin = NULL; 4928 } 4929 win_free_lsize(wp); 4930 4931 for (i = 0; i < wp->w_tagstacklen; ++i) 4932 { 4933 vim_free(wp->w_tagstack[i].tagname); 4934 vim_free(wp->w_tagstack[i].user_data); 4935 } 4936 vim_free(wp->w_localdir); 4937 4938 // Remove the window from the b_wininfo lists, it may happen that the 4939 // freed memory is re-used for another window. 4940 FOR_ALL_BUFFERS(buf) 4941 for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) 4942 if (wip->wi_win == wp) 4943 wip->wi_win = NULL; 4944 4945 #ifdef FEAT_SEARCH_EXTRA 4946 clear_matches(wp); 4947 #endif 4948 4949 #ifdef FEAT_JUMPLIST 4950 free_jumplist(wp); 4951 #endif 4952 4953 #ifdef FEAT_QUICKFIX 4954 qf_free_all(wp); 4955 #endif 4956 4957 #ifdef FEAT_GUI 4958 if (gui.in_use) 4959 { 4960 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_LEFT]); 4961 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_RIGHT]); 4962 } 4963 #endif // FEAT_GUI 4964 4965 #ifdef FEAT_MENU 4966 remove_winbar(wp); 4967 #endif 4968 #ifdef FEAT_PROP_POPUP 4969 free_callback(&wp->w_close_cb); 4970 free_callback(&wp->w_filter_cb); 4971 for (i = 0; i < 4; ++i) 4972 VIM_CLEAR(wp->w_border_highlight[i]); 4973 vim_free(wp->w_scrollbar_highlight); 4974 vim_free(wp->w_thumb_highlight); 4975 vim_free(wp->w_popup_title); 4976 list_unref(wp->w_popup_mask); 4977 vim_free(wp->w_popup_mask_cells); 4978 #endif 4979 4980 #ifdef FEAT_SYN_HL 4981 vim_free(wp->w_p_cc_cols); 4982 #endif 4983 4984 if (win_valid_any_tab(wp)) 4985 win_remove(wp, tp); 4986 if (autocmd_busy) 4987 { 4988 wp->w_next = au_pending_free_win; 4989 au_pending_free_win = wp; 4990 } 4991 else 4992 vim_free(wp); 4993 4994 unblock_autocmds(); 4995 } 4996 4997 /* 4998 * Return TRUE if "wp" is not in the list of windows: the autocmd window or a 4999 * popup window. 5000 */ 5001 static int 5002 win_unlisted(win_T *wp) 5003 { 5004 return wp == aucmd_win || WIN_IS_POPUP(wp); 5005 } 5006 5007 #if defined(FEAT_PROP_POPUP) || defined(PROTO) 5008 /* 5009 * Free a popup window. This does not take the window out of the window list 5010 * and assumes there is only one toplevel frame, no split. 5011 */ 5012 void 5013 win_free_popup(win_T *win) 5014 { 5015 if (bt_popup(win->w_buffer)) 5016 win_close_buffer(win, DOBUF_WIPE_REUSE, FALSE); 5017 else 5018 close_buffer(win, win->w_buffer, 0, FALSE, FALSE); 5019 # if defined(FEAT_TIMERS) 5020 if (win->w_popup_timer != NULL) 5021 stop_timer(win->w_popup_timer); 5022 # endif 5023 vim_free(win->w_frame); 5024 win_free(win, NULL); 5025 } 5026 #endif 5027 5028 /* 5029 * Append window "wp" in the window list after window "after". 5030 */ 5031 static void 5032 win_append(win_T *after, win_T *wp) 5033 { 5034 win_T *before; 5035 5036 if (after == NULL) // after NULL is in front of the first 5037 before = firstwin; 5038 else 5039 before = after->w_next; 5040 5041 wp->w_next = before; 5042 wp->w_prev = after; 5043 if (after == NULL) 5044 firstwin = wp; 5045 else 5046 after->w_next = wp; 5047 if (before == NULL) 5048 lastwin = wp; 5049 else 5050 before->w_prev = wp; 5051 } 5052 5053 /* 5054 * Remove a window from the window list. 5055 */ 5056 void 5057 win_remove( 5058 win_T *wp, 5059 tabpage_T *tp) // tab page "win" is in, NULL for current 5060 { 5061 if (wp->w_prev != NULL) 5062 wp->w_prev->w_next = wp->w_next; 5063 else if (tp == NULL) 5064 firstwin = curtab->tp_firstwin = wp->w_next; 5065 else 5066 tp->tp_firstwin = wp->w_next; 5067 5068 if (wp->w_next != NULL) 5069 wp->w_next->w_prev = wp->w_prev; 5070 else if (tp == NULL) 5071 lastwin = curtab->tp_lastwin = wp->w_prev; 5072 else 5073 tp->tp_lastwin = wp->w_prev; 5074 } 5075 5076 /* 5077 * Append frame "frp" in a frame list after frame "after". 5078 */ 5079 static void 5080 frame_append(frame_T *after, frame_T *frp) 5081 { 5082 frp->fr_next = after->fr_next; 5083 after->fr_next = frp; 5084 if (frp->fr_next != NULL) 5085 frp->fr_next->fr_prev = frp; 5086 frp->fr_prev = after; 5087 } 5088 5089 /* 5090 * Insert frame "frp" in a frame list before frame "before". 5091 */ 5092 static void 5093 frame_insert(frame_T *before, frame_T *frp) 5094 { 5095 frp->fr_next = before; 5096 frp->fr_prev = before->fr_prev; 5097 before->fr_prev = frp; 5098 if (frp->fr_prev != NULL) 5099 frp->fr_prev->fr_next = frp; 5100 else 5101 frp->fr_parent->fr_child = frp; 5102 } 5103 5104 /* 5105 * Remove a frame from a frame list. 5106 */ 5107 static void 5108 frame_remove(frame_T *frp) 5109 { 5110 if (frp->fr_prev != NULL) 5111 frp->fr_prev->fr_next = frp->fr_next; 5112 else 5113 { 5114 frp->fr_parent->fr_child = frp->fr_next; 5115 // special case: topframe->fr_child == frp 5116 if (topframe->fr_child == frp) 5117 topframe->fr_child = frp->fr_next; 5118 } 5119 if (frp->fr_next != NULL) 5120 frp->fr_next->fr_prev = frp->fr_prev; 5121 } 5122 5123 /* 5124 * Allocate w_lines[] for window "wp". 5125 * Return FAIL for failure, OK for success. 5126 */ 5127 int 5128 win_alloc_lines(win_T *wp) 5129 { 5130 wp->w_lines_valid = 0; 5131 wp->w_lines = ALLOC_CLEAR_MULT(wline_T, Rows ); 5132 if (wp->w_lines == NULL) 5133 return FAIL; 5134 return OK; 5135 } 5136 5137 /* 5138 * free lsize arrays for a window 5139 */ 5140 void 5141 win_free_lsize(win_T *wp) 5142 { 5143 // TODO: why would wp be NULL here? 5144 if (wp != NULL) 5145 VIM_CLEAR(wp->w_lines); 5146 } 5147 5148 /* 5149 * Called from win_new_shellsize() after Rows changed. 5150 * This only does the current tab page, others must be done when made active. 5151 */ 5152 void 5153 shell_new_rows(void) 5154 { 5155 int h = (int)ROWS_AVAIL; 5156 5157 if (firstwin == NULL) // not initialized yet 5158 return; 5159 if (h < frame_minheight(topframe, NULL)) 5160 h = frame_minheight(topframe, NULL); 5161 5162 // First try setting the heights of windows with 'winfixheight'. If 5163 // that doesn't result in the right height, forget about that option. 5164 frame_new_height(topframe, h, FALSE, TRUE); 5165 if (!frame_check_height(topframe, h)) 5166 frame_new_height(topframe, h, FALSE, FALSE); 5167 5168 (void)win_comp_pos(); // recompute w_winrow and w_wincol 5169 compute_cmdrow(); 5170 curtab->tp_ch_used = p_ch; 5171 5172 #if 0 5173 // Disabled: don't want making the screen smaller make a window larger. 5174 if (p_ea) 5175 win_equal(curwin, FALSE, 'v'); 5176 #endif 5177 } 5178 5179 /* 5180 * Called from win_new_shellsize() after Columns changed. 5181 */ 5182 void 5183 shell_new_columns(void) 5184 { 5185 if (firstwin == NULL) // not initialized yet 5186 return; 5187 5188 // First try setting the widths of windows with 'winfixwidth'. If that 5189 // doesn't result in the right width, forget about that option. 5190 frame_new_width(topframe, (int)Columns, FALSE, TRUE); 5191 if (!frame_check_width(topframe, Columns)) 5192 frame_new_width(topframe, (int)Columns, FALSE, FALSE); 5193 5194 (void)win_comp_pos(); // recompute w_winrow and w_wincol 5195 #if 0 5196 // Disabled: don't want making the screen smaller make a window larger. 5197 if (p_ea) 5198 win_equal(curwin, FALSE, 'h'); 5199 #endif 5200 } 5201 5202 #if defined(FEAT_CMDWIN) || defined(PROTO) 5203 /* 5204 * Save the size of all windows in "gap". 5205 */ 5206 void 5207 win_size_save(garray_T *gap) 5208 5209 { 5210 win_T *wp; 5211 5212 ga_init2(gap, (int)sizeof(int), 1); 5213 if (ga_grow(gap, win_count() * 2 + 1) == OK) 5214 { 5215 // first entry is value of 'lines' 5216 ((int *)gap->ga_data)[gap->ga_len++] = Rows; 5217 5218 FOR_ALL_WINDOWS(wp) 5219 { 5220 ((int *)gap->ga_data)[gap->ga_len++] = 5221 wp->w_width + wp->w_vsep_width; 5222 ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height; 5223 } 5224 } 5225 } 5226 5227 /* 5228 * Restore window sizes, but only if the number of windows is still the same 5229 * and 'lines' didn't change. 5230 * Does not free the growarray. 5231 */ 5232 void 5233 win_size_restore(garray_T *gap) 5234 { 5235 win_T *wp; 5236 int i, j; 5237 5238 if (win_count() * 2 + 1 == gap->ga_len 5239 && ((int *)gap->ga_data)[0] == Rows) 5240 { 5241 // The order matters, because frames contain other frames, but it's 5242 // difficult to get right. The easy way out is to do it twice. 5243 for (j = 0; j < 2; ++j) 5244 { 5245 i = 1; 5246 FOR_ALL_WINDOWS(wp) 5247 { 5248 frame_setwidth(wp->w_frame, ((int *)gap->ga_data)[i++]); 5249 win_setheight_win(((int *)gap->ga_data)[i++], wp); 5250 } 5251 } 5252 // recompute the window positions 5253 (void)win_comp_pos(); 5254 } 5255 } 5256 #endif // FEAT_CMDWIN 5257 5258 /* 5259 * Update the position for all windows, using the width and height of the 5260 * frames. 5261 * Returns the row just after the last window. 5262 */ 5263 int 5264 win_comp_pos(void) 5265 { 5266 int row = tabline_height(); 5267 int col = 0; 5268 5269 frame_comp_pos(topframe, &row, &col); 5270 return row; 5271 } 5272 5273 /* 5274 * Update the position of the windows in frame "topfrp", using the width and 5275 * height of the frames. 5276 * "*row" and "*col" are the top-left position of the frame. They are updated 5277 * to the bottom-right position plus one. 5278 */ 5279 static void 5280 frame_comp_pos(frame_T *topfrp, int *row, int *col) 5281 { 5282 win_T *wp; 5283 frame_T *frp; 5284 int startcol; 5285 int startrow; 5286 int h; 5287 5288 wp = topfrp->fr_win; 5289 if (wp != NULL) 5290 { 5291 if (wp->w_winrow != *row || wp->w_wincol != *col) 5292 { 5293 // position changed, redraw 5294 wp->w_winrow = *row; 5295 wp->w_wincol = *col; 5296 redraw_win_later(wp, NOT_VALID); 5297 wp->w_redr_status = TRUE; 5298 } 5299 // WinBar will not show if the window height is zero 5300 h = VISIBLE_HEIGHT(wp) + wp->w_status_height; 5301 *row += h > topfrp->fr_height ? topfrp->fr_height : h; 5302 *col += wp->w_width + wp->w_vsep_width; 5303 } 5304 else 5305 { 5306 startrow = *row; 5307 startcol = *col; 5308 FOR_ALL_FRAMES(frp, topfrp->fr_child) 5309 { 5310 if (topfrp->fr_layout == FR_ROW) 5311 *row = startrow; // all frames are at the same row 5312 else 5313 *col = startcol; // all frames are at the same col 5314 frame_comp_pos(frp, row, col); 5315 } 5316 } 5317 } 5318 5319 /* 5320 * Set current window height and take care of repositioning other windows to 5321 * fit around it. 5322 */ 5323 void 5324 win_setheight(int height) 5325 { 5326 win_setheight_win(height, curwin); 5327 } 5328 5329 /* 5330 * Set the window height of window "win" and take care of repositioning other 5331 * windows to fit around it. 5332 */ 5333 void 5334 win_setheight_win(int height, win_T *win) 5335 { 5336 int row; 5337 5338 if (win == curwin) 5339 { 5340 // Always keep current window at least one line high, even when 5341 // 'winminheight' is zero. 5342 if (height < p_wmh) 5343 height = p_wmh; 5344 if (height == 0) 5345 height = 1; 5346 height += WINBAR_HEIGHT(curwin); 5347 } 5348 5349 frame_setheight(win->w_frame, height + win->w_status_height); 5350 5351 // recompute the window positions 5352 row = win_comp_pos(); 5353 5354 /* 5355 * If there is extra space created between the last window and the command 5356 * line, clear it. 5357 */ 5358 if (full_screen && msg_scrolled == 0 && row < cmdline_row) 5359 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5360 cmdline_row = row; 5361 msg_row = row; 5362 msg_col = 0; 5363 5364 redraw_all_later(NOT_VALID); 5365 } 5366 5367 /* 5368 * Set the height of a frame to "height" and take care that all frames and 5369 * windows inside it are resized. Also resize frames on the left and right if 5370 * the are in the same FR_ROW frame. 5371 * 5372 * Strategy: 5373 * If the frame is part of a FR_COL frame, try fitting the frame in that 5374 * frame. If that doesn't work (the FR_COL frame is too small), recursively 5375 * go to containing frames to resize them and make room. 5376 * If the frame is part of a FR_ROW frame, all frames must be resized as well. 5377 * Check for the minimal height of the FR_ROW frame. 5378 * At the top level we can also use change the command line height. 5379 */ 5380 static void 5381 frame_setheight(frame_T *curfrp, int height) 5382 { 5383 int room; // total number of lines available 5384 int take; // number of lines taken from other windows 5385 int room_cmdline; // lines available from cmdline 5386 int run; 5387 frame_T *frp; 5388 int h; 5389 int room_reserved; 5390 5391 // If the height already is the desired value, nothing to do. 5392 if (curfrp->fr_height == height) 5393 return; 5394 5395 if (curfrp->fr_parent == NULL) 5396 { 5397 // topframe: can only change the command line 5398 if (height > ROWS_AVAIL) 5399 height = ROWS_AVAIL; 5400 if (height > 0) 5401 frame_new_height(curfrp, height, FALSE, FALSE); 5402 } 5403 else if (curfrp->fr_parent->fr_layout == FR_ROW) 5404 { 5405 // Row of frames: Also need to resize frames left and right of this 5406 // one. First check for the minimal height of these. 5407 h = frame_minheight(curfrp->fr_parent, NULL); 5408 if (height < h) 5409 height = h; 5410 frame_setheight(curfrp->fr_parent, height); 5411 } 5412 else 5413 { 5414 /* 5415 * Column of frames: try to change only frames in this column. 5416 */ 5417 /* 5418 * Do this twice: 5419 * 1: compute room available, if it's not enough try resizing the 5420 * containing frame. 5421 * 2: compute the room available and adjust the height to it. 5422 * Try not to reduce the height of a window with 'winfixheight' set. 5423 */ 5424 for (run = 1; run <= 2; ++run) 5425 { 5426 room = 0; 5427 room_reserved = 0; 5428 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5429 { 5430 if (frp != curfrp 5431 && frp->fr_win != NULL 5432 && frp->fr_win->w_p_wfh) 5433 room_reserved += frp->fr_height; 5434 room += frp->fr_height; 5435 if (frp != curfrp) 5436 room -= frame_minheight(frp, NULL); 5437 } 5438 if (curfrp->fr_width != Columns) 5439 room_cmdline = 0; 5440 else 5441 { 5442 room_cmdline = Rows - p_ch - (lastwin->w_winrow 5443 + VISIBLE_HEIGHT(lastwin) 5444 + lastwin->w_status_height); 5445 if (room_cmdline < 0) 5446 room_cmdline = 0; 5447 } 5448 5449 if (height <= room + room_cmdline) 5450 break; 5451 if (run == 2 || curfrp->fr_width == Columns) 5452 { 5453 if (height > room + room_cmdline) 5454 height = room + room_cmdline; 5455 break; 5456 } 5457 frame_setheight(curfrp->fr_parent, height 5458 + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1); 5459 } 5460 5461 /* 5462 * Compute the number of lines we will take from others frames (can be 5463 * negative!). 5464 */ 5465 take = height - curfrp->fr_height; 5466 5467 // If there is not enough room, also reduce the height of a window 5468 // with 'winfixheight' set. 5469 if (height > room + room_cmdline - room_reserved) 5470 room_reserved = room + room_cmdline - height; 5471 // If there is only a 'winfixheight' window and making the 5472 // window smaller, need to make the other window taller. 5473 if (take < 0 && room - curfrp->fr_height < room_reserved) 5474 room_reserved = 0; 5475 5476 if (take > 0 && room_cmdline > 0) 5477 { 5478 // use lines from cmdline first 5479 if (take < room_cmdline) 5480 room_cmdline = take; 5481 take -= room_cmdline; 5482 topframe->fr_height += room_cmdline; 5483 } 5484 5485 /* 5486 * set the current frame to the new height 5487 */ 5488 frame_new_height(curfrp, height, FALSE, FALSE); 5489 5490 /* 5491 * First take lines from the frames after the current frame. If 5492 * that is not enough, takes lines from frames above the current 5493 * frame. 5494 */ 5495 for (run = 0; run < 2; ++run) 5496 { 5497 if (run == 0) 5498 frp = curfrp->fr_next; // 1st run: start with next window 5499 else 5500 frp = curfrp->fr_prev; // 2nd run: start with prev window 5501 while (frp != NULL && take != 0) 5502 { 5503 h = frame_minheight(frp, NULL); 5504 if (room_reserved > 0 5505 && frp->fr_win != NULL 5506 && frp->fr_win->w_p_wfh) 5507 { 5508 if (room_reserved >= frp->fr_height) 5509 room_reserved -= frp->fr_height; 5510 else 5511 { 5512 if (frp->fr_height - room_reserved > take) 5513 room_reserved = frp->fr_height - take; 5514 take -= frp->fr_height - room_reserved; 5515 frame_new_height(frp, room_reserved, FALSE, FALSE); 5516 room_reserved = 0; 5517 } 5518 } 5519 else 5520 { 5521 if (frp->fr_height - take < h) 5522 { 5523 take -= frp->fr_height - h; 5524 frame_new_height(frp, h, FALSE, FALSE); 5525 } 5526 else 5527 { 5528 frame_new_height(frp, frp->fr_height - take, 5529 FALSE, FALSE); 5530 take = 0; 5531 } 5532 } 5533 if (run == 0) 5534 frp = frp->fr_next; 5535 else 5536 frp = frp->fr_prev; 5537 } 5538 } 5539 } 5540 } 5541 5542 /* 5543 * Set current window width and take care of repositioning other windows to 5544 * fit around it. 5545 */ 5546 void 5547 win_setwidth(int width) 5548 { 5549 win_setwidth_win(width, curwin); 5550 } 5551 5552 void 5553 win_setwidth_win(int width, win_T *wp) 5554 { 5555 // Always keep current window at least one column wide, even when 5556 // 'winminwidth' is zero. 5557 if (wp == curwin) 5558 { 5559 if (width < p_wmw) 5560 width = p_wmw; 5561 if (width == 0) 5562 width = 1; 5563 } 5564 5565 frame_setwidth(wp->w_frame, width + wp->w_vsep_width); 5566 5567 // recompute the window positions 5568 (void)win_comp_pos(); 5569 5570 redraw_all_later(NOT_VALID); 5571 } 5572 5573 /* 5574 * Set the width of a frame to "width" and take care that all frames and 5575 * windows inside it are resized. Also resize frames above and below if the 5576 * are in the same FR_ROW frame. 5577 * 5578 * Strategy is similar to frame_setheight(). 5579 */ 5580 static void 5581 frame_setwidth(frame_T *curfrp, int width) 5582 { 5583 int room; // total number of lines available 5584 int take; // number of lines taken from other windows 5585 int run; 5586 frame_T *frp; 5587 int w; 5588 int room_reserved; 5589 5590 // If the width already is the desired value, nothing to do. 5591 if (curfrp->fr_width == width) 5592 return; 5593 5594 if (curfrp->fr_parent == NULL) 5595 // topframe: can't change width 5596 return; 5597 5598 if (curfrp->fr_parent->fr_layout == FR_COL) 5599 { 5600 // Column of frames: Also need to resize frames above and below of 5601 // this one. First check for the minimal width of these. 5602 w = frame_minwidth(curfrp->fr_parent, NULL); 5603 if (width < w) 5604 width = w; 5605 frame_setwidth(curfrp->fr_parent, width); 5606 } 5607 else 5608 { 5609 /* 5610 * Row of frames: try to change only frames in this row. 5611 * 5612 * Do this twice: 5613 * 1: compute room available, if it's not enough try resizing the 5614 * containing frame. 5615 * 2: compute the room available and adjust the width to it. 5616 */ 5617 for (run = 1; run <= 2; ++run) 5618 { 5619 room = 0; 5620 room_reserved = 0; 5621 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5622 { 5623 if (frp != curfrp 5624 && frp->fr_win != NULL 5625 && frp->fr_win->w_p_wfw) 5626 room_reserved += frp->fr_width; 5627 room += frp->fr_width; 5628 if (frp != curfrp) 5629 room -= frame_minwidth(frp, NULL); 5630 } 5631 5632 if (width <= room) 5633 break; 5634 if (run == 2 || curfrp->fr_height >= ROWS_AVAIL) 5635 { 5636 if (width > room) 5637 width = room; 5638 break; 5639 } 5640 frame_setwidth(curfrp->fr_parent, width 5641 + frame_minwidth(curfrp->fr_parent, NOWIN) - (int)p_wmw - 1); 5642 } 5643 5644 /* 5645 * Compute the number of lines we will take from others frames (can be 5646 * negative!). 5647 */ 5648 take = width - curfrp->fr_width; 5649 5650 // If there is not enough room, also reduce the width of a window 5651 // with 'winfixwidth' set. 5652 if (width > room - room_reserved) 5653 room_reserved = room - width; 5654 // If there is only a 'winfixwidth' window and making the 5655 // window smaller, need to make the other window narrower. 5656 if (take < 0 && room - curfrp->fr_width < room_reserved) 5657 room_reserved = 0; 5658 5659 /* 5660 * set the current frame to the new width 5661 */ 5662 frame_new_width(curfrp, width, FALSE, FALSE); 5663 5664 /* 5665 * First take lines from the frames right of the current frame. If 5666 * that is not enough, takes lines from frames left of the current 5667 * frame. 5668 */ 5669 for (run = 0; run < 2; ++run) 5670 { 5671 if (run == 0) 5672 frp = curfrp->fr_next; // 1st run: start with next window 5673 else 5674 frp = curfrp->fr_prev; // 2nd run: start with prev window 5675 while (frp != NULL && take != 0) 5676 { 5677 w = frame_minwidth(frp, NULL); 5678 if (room_reserved > 0 5679 && frp->fr_win != NULL 5680 && frp->fr_win->w_p_wfw) 5681 { 5682 if (room_reserved >= frp->fr_width) 5683 room_reserved -= frp->fr_width; 5684 else 5685 { 5686 if (frp->fr_width - room_reserved > take) 5687 room_reserved = frp->fr_width - take; 5688 take -= frp->fr_width - room_reserved; 5689 frame_new_width(frp, room_reserved, FALSE, FALSE); 5690 room_reserved = 0; 5691 } 5692 } 5693 else 5694 { 5695 if (frp->fr_width - take < w) 5696 { 5697 take -= frp->fr_width - w; 5698 frame_new_width(frp, w, FALSE, FALSE); 5699 } 5700 else 5701 { 5702 frame_new_width(frp, frp->fr_width - take, 5703 FALSE, FALSE); 5704 take = 0; 5705 } 5706 } 5707 if (run == 0) 5708 frp = frp->fr_next; 5709 else 5710 frp = frp->fr_prev; 5711 } 5712 } 5713 } 5714 } 5715 5716 /* 5717 * Check 'winminheight' for a valid value and reduce it if needed. 5718 */ 5719 void 5720 win_setminheight(void) 5721 { 5722 int room; 5723 int needed; 5724 int first = TRUE; 5725 5726 // loop until there is a 'winminheight' that is possible 5727 while (p_wmh > 0) 5728 { 5729 room = Rows - p_ch; 5730 needed = frame_minheight(topframe, NULL); 5731 if (room >= needed) 5732 break; 5733 --p_wmh; 5734 if (first) 5735 { 5736 emsg(_(e_noroom)); 5737 first = FALSE; 5738 } 5739 } 5740 } 5741 5742 /* 5743 * Check 'winminwidth' for a valid value and reduce it if needed. 5744 */ 5745 void 5746 win_setminwidth(void) 5747 { 5748 int room; 5749 int needed; 5750 int first = TRUE; 5751 5752 // loop until there is a 'winminheight' that is possible 5753 while (p_wmw > 0) 5754 { 5755 room = Columns; 5756 needed = frame_minwidth(topframe, NULL); 5757 if (room >= needed) 5758 break; 5759 --p_wmw; 5760 if (first) 5761 { 5762 emsg(_(e_noroom)); 5763 first = FALSE; 5764 } 5765 } 5766 } 5767 5768 /* 5769 * Status line of dragwin is dragged "offset" lines down (negative is up). 5770 */ 5771 void 5772 win_drag_status_line(win_T *dragwin, int offset) 5773 { 5774 frame_T *curfr; 5775 frame_T *fr; 5776 int room; 5777 int row; 5778 int up; // if TRUE, drag status line up, otherwise down 5779 int n; 5780 5781 fr = dragwin->w_frame; 5782 curfr = fr; 5783 if (fr != topframe) // more than one window 5784 { 5785 fr = fr->fr_parent; 5786 // When the parent frame is not a column of frames, its parent should 5787 // be. 5788 if (fr->fr_layout != FR_COL) 5789 { 5790 curfr = fr; 5791 if (fr != topframe) // only a row of windows, may drag statusline 5792 fr = fr->fr_parent; 5793 } 5794 } 5795 5796 // If this is the last frame in a column, may want to resize the parent 5797 // frame instead (go two up to skip a row of frames). 5798 while (curfr != topframe && curfr->fr_next == NULL) 5799 { 5800 if (fr != topframe) 5801 fr = fr->fr_parent; 5802 curfr = fr; 5803 if (fr != topframe) 5804 fr = fr->fr_parent; 5805 } 5806 5807 if (offset < 0) // drag up 5808 { 5809 up = TRUE; 5810 offset = -offset; 5811 // sum up the room of the current frame and above it 5812 if (fr == curfr) 5813 { 5814 // only one window 5815 room = fr->fr_height - frame_minheight(fr, NULL); 5816 } 5817 else 5818 { 5819 room = 0; 5820 for (fr = fr->fr_child; ; fr = fr->fr_next) 5821 { 5822 room += fr->fr_height - frame_minheight(fr, NULL); 5823 if (fr == curfr) 5824 break; 5825 } 5826 } 5827 fr = curfr->fr_next; // put fr at frame that grows 5828 } 5829 else // drag down 5830 { 5831 up = FALSE; 5832 /* 5833 * Only dragging the last status line can reduce p_ch. 5834 */ 5835 room = Rows - cmdline_row; 5836 if (curfr->fr_next == NULL) 5837 room -= 1; 5838 else 5839 room -= p_ch; 5840 if (room < 0) 5841 room = 0; 5842 // sum up the room of frames below of the current one 5843 FOR_ALL_FRAMES(fr, curfr->fr_next) 5844 room += fr->fr_height - frame_minheight(fr, NULL); 5845 fr = curfr; // put fr at window that grows 5846 } 5847 5848 if (room < offset) // Not enough room 5849 offset = room; // Move as far as we can 5850 if (offset <= 0) 5851 return; 5852 5853 /* 5854 * Grow frame fr by "offset" lines. 5855 * Doesn't happen when dragging the last status line up. 5856 */ 5857 if (fr != NULL) 5858 frame_new_height(fr, fr->fr_height + offset, up, FALSE); 5859 5860 if (up) 5861 fr = curfr; // current frame gets smaller 5862 else 5863 fr = curfr->fr_next; // next frame gets smaller 5864 5865 /* 5866 * Now make the other frames smaller. 5867 */ 5868 while (fr != NULL && offset > 0) 5869 { 5870 n = frame_minheight(fr, NULL); 5871 if (fr->fr_height - offset <= n) 5872 { 5873 offset -= fr->fr_height - n; 5874 frame_new_height(fr, n, !up, FALSE); 5875 } 5876 else 5877 { 5878 frame_new_height(fr, fr->fr_height - offset, !up, FALSE); 5879 break; 5880 } 5881 if (up) 5882 fr = fr->fr_prev; 5883 else 5884 fr = fr->fr_next; 5885 } 5886 row = win_comp_pos(); 5887 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5888 cmdline_row = row; 5889 p_ch = Rows - cmdline_row; 5890 if (p_ch < 1) 5891 p_ch = 1; 5892 curtab->tp_ch_used = p_ch; 5893 redraw_all_later(SOME_VALID); 5894 showmode(); 5895 } 5896 5897 /* 5898 * Separator line of dragwin is dragged "offset" lines right (negative is left). 5899 */ 5900 void 5901 win_drag_vsep_line(win_T *dragwin, int offset) 5902 { 5903 frame_T *curfr; 5904 frame_T *fr; 5905 int room; 5906 int left; // if TRUE, drag separator line left, otherwise right 5907 int n; 5908 5909 fr = dragwin->w_frame; 5910 if (fr == topframe) // only one window (cannot happen?) 5911 return; 5912 curfr = fr; 5913 fr = fr->fr_parent; 5914 // When the parent frame is not a row of frames, its parent should be. 5915 if (fr->fr_layout != FR_ROW) 5916 { 5917 if (fr == topframe) // only a column of windows (cannot happen?) 5918 return; 5919 curfr = fr; 5920 fr = fr->fr_parent; 5921 } 5922 5923 // If this is the last frame in a row, may want to resize a parent 5924 // frame instead. 5925 while (curfr->fr_next == NULL) 5926 { 5927 if (fr == topframe) 5928 break; 5929 curfr = fr; 5930 fr = fr->fr_parent; 5931 if (fr != topframe) 5932 { 5933 curfr = fr; 5934 fr = fr->fr_parent; 5935 } 5936 } 5937 5938 if (offset < 0) // drag left 5939 { 5940 left = TRUE; 5941 offset = -offset; 5942 // sum up the room of the current frame and left of it 5943 room = 0; 5944 for (fr = fr->fr_child; ; fr = fr->fr_next) 5945 { 5946 room += fr->fr_width - frame_minwidth(fr, NULL); 5947 if (fr == curfr) 5948 break; 5949 } 5950 fr = curfr->fr_next; // put fr at frame that grows 5951 } 5952 else // drag right 5953 { 5954 left = FALSE; 5955 // sum up the room of frames right of the current one 5956 room = 0; 5957 FOR_ALL_FRAMES(fr, curfr->fr_next) 5958 room += fr->fr_width - frame_minwidth(fr, NULL); 5959 fr = curfr; // put fr at window that grows 5960 } 5961 5962 if (room < offset) // Not enough room 5963 offset = room; // Move as far as we can 5964 if (offset <= 0) // No room at all, quit. 5965 return; 5966 if (fr == NULL) 5967 return; // Safety check, should not happen. 5968 5969 // grow frame fr by offset lines 5970 frame_new_width(fr, fr->fr_width + offset, left, FALSE); 5971 5972 // shrink other frames: current and at the left or at the right 5973 if (left) 5974 fr = curfr; // current frame gets smaller 5975 else 5976 fr = curfr->fr_next; // next frame gets smaller 5977 5978 while (fr != NULL && offset > 0) 5979 { 5980 n = frame_minwidth(fr, NULL); 5981 if (fr->fr_width - offset <= n) 5982 { 5983 offset -= fr->fr_width - n; 5984 frame_new_width(fr, n, !left, FALSE); 5985 } 5986 else 5987 { 5988 frame_new_width(fr, fr->fr_width - offset, !left, FALSE); 5989 break; 5990 } 5991 if (left) 5992 fr = fr->fr_prev; 5993 else 5994 fr = fr->fr_next; 5995 } 5996 (void)win_comp_pos(); 5997 redraw_all_later(NOT_VALID); 5998 } 5999 6000 #define FRACTION_MULT 16384L 6001 6002 /* 6003 * Set wp->w_fraction for the current w_wrow and w_height. 6004 * Has no effect when the window is less than two lines. 6005 */ 6006 void 6007 set_fraction(win_T *wp) 6008 { 6009 if (wp->w_height > 1) 6010 // When cursor is in the first line the percentage is computed as if 6011 // it's halfway that line. Thus with two lines it is 25%, with three 6012 // lines 17%, etc. Similarly for the last line: 75%, 83%, etc. 6013 wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT 6014 + FRACTION_MULT / 2) / (long)wp->w_height; 6015 } 6016 6017 /* 6018 * Set the height of a window. 6019 * "height" excludes any window toolbar. 6020 * This takes care of the things inside the window, not what happens to the 6021 * window position, the frame or to other windows. 6022 */ 6023 void 6024 win_new_height(win_T *wp, int height) 6025 { 6026 int prev_height = wp->w_height; 6027 6028 // Don't want a negative height. Happens when splitting a tiny window. 6029 // Will equalize heights soon to fix it. 6030 if (height < 0) 6031 height = 0; 6032 if (wp->w_height == height) 6033 return; // nothing to do 6034 6035 if (wp->w_height > 0) 6036 { 6037 if (wp == curwin) 6038 // w_wrow needs to be valid. When setting 'laststatus' this may 6039 // call win_new_height() recursively. 6040 validate_cursor(); 6041 if (wp->w_height != prev_height) 6042 return; // Recursive call already changed the size, bail out here 6043 // to avoid the following to mess things up. 6044 if (wp->w_wrow != wp->w_prev_fraction_row) 6045 set_fraction(wp); 6046 } 6047 6048 wp->w_height = height; 6049 wp->w_skipcol = 0; 6050 6051 // There is no point in adjusting the scroll position when exiting. Some 6052 // values might be invalid. 6053 if (!exiting) 6054 scroll_to_fraction(wp, prev_height); 6055 } 6056 6057 void 6058 scroll_to_fraction(win_T *wp, int prev_height) 6059 { 6060 linenr_T lnum; 6061 int sline, line_size; 6062 int height = wp->w_height; 6063 6064 // Don't change w_topline in any of these cases: 6065 // - window height is 0 6066 // - 'scrollbind' is set and this isn't the current window 6067 // - window height is sufficient to display the whole buffer and first line 6068 // is visible. 6069 if (height > 0 6070 && (!wp->w_p_scb || wp == curwin) 6071 && (height < wp->w_buffer->b_ml.ml_line_count || wp->w_topline > 1)) 6072 { 6073 /* 6074 * Find a value for w_topline that shows the cursor at the same 6075 * relative position in the window as before (more or less). 6076 */ 6077 lnum = wp->w_cursor.lnum; 6078 if (lnum < 1) // can happen when starting up 6079 lnum = 1; 6080 wp->w_wrow = ((long)wp->w_fraction * (long)height - 1L) 6081 / FRACTION_MULT; 6082 line_size = plines_win_col(wp, lnum, (long)(wp->w_cursor.col)) - 1; 6083 sline = wp->w_wrow - line_size; 6084 6085 if (sline >= 0) 6086 { 6087 // Make sure the whole cursor line is visible, if possible. 6088 int rows = plines_win(wp, lnum, FALSE); 6089 6090 if (sline > wp->w_height - rows) 6091 { 6092 sline = wp->w_height - rows; 6093 wp->w_wrow -= rows - line_size; 6094 } 6095 } 6096 6097 if (sline < 0) 6098 { 6099 /* 6100 * Cursor line would go off top of screen if w_wrow was this high. 6101 * Make cursor line the first line in the window. If not enough 6102 * room use w_skipcol; 6103 */ 6104 wp->w_wrow = line_size; 6105 if (wp->w_wrow >= wp->w_height 6106 && (wp->w_width - win_col_off(wp)) > 0) 6107 { 6108 wp->w_skipcol += wp->w_width - win_col_off(wp); 6109 --wp->w_wrow; 6110 while (wp->w_wrow >= wp->w_height) 6111 { 6112 wp->w_skipcol += wp->w_width - win_col_off(wp) 6113 + win_col_off2(wp); 6114 --wp->w_wrow; 6115 } 6116 } 6117 } 6118 else if (sline > 0) 6119 { 6120 while (sline > 0 && lnum > 1) 6121 { 6122 #ifdef FEAT_FOLDING 6123 hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); 6124 if (lnum == 1) 6125 { 6126 // first line in buffer is folded 6127 line_size = 1; 6128 --sline; 6129 break; 6130 } 6131 #endif 6132 --lnum; 6133 #ifdef FEAT_DIFF 6134 if (lnum == wp->w_topline) 6135 line_size = plines_win_nofill(wp, lnum, TRUE) 6136 + wp->w_topfill; 6137 else 6138 #endif 6139 line_size = plines_win(wp, lnum, TRUE); 6140 sline -= line_size; 6141 } 6142 6143 if (sline < 0) 6144 { 6145 /* 6146 * Line we want at top would go off top of screen. Use next 6147 * line instead. 6148 */ 6149 #ifdef FEAT_FOLDING 6150 hasFoldingWin(wp, lnum, NULL, &lnum, TRUE, NULL); 6151 #endif 6152 lnum++; 6153 wp->w_wrow -= line_size + sline; 6154 } 6155 else if (sline > 0) 6156 { 6157 // First line of file reached, use that as topline. 6158 lnum = 1; 6159 wp->w_wrow -= sline; 6160 } 6161 } 6162 set_topline(wp, lnum); 6163 } 6164 6165 if (wp == curwin) 6166 { 6167 if (get_scrolloff_value()) 6168 update_topline(); 6169 curs_columns(FALSE); // validate w_wrow 6170 } 6171 if (prev_height > 0) 6172 wp->w_prev_fraction_row = wp->w_wrow; 6173 6174 win_comp_scroll(wp); 6175 redraw_win_later(wp, SOME_VALID); 6176 wp->w_redr_status = TRUE; 6177 invalidate_botline_win(wp); 6178 } 6179 6180 /* 6181 * Set the width of a window. 6182 */ 6183 void 6184 win_new_width(win_T *wp, int width) 6185 { 6186 wp->w_width = width; 6187 wp->w_lines_valid = 0; 6188 changed_line_abv_curs_win(wp); 6189 invalidate_botline_win(wp); 6190 if (wp == curwin) 6191 { 6192 update_topline(); 6193 curs_columns(TRUE); // validate w_wrow 6194 } 6195 redraw_win_later(wp, NOT_VALID); 6196 wp->w_redr_status = TRUE; 6197 } 6198 6199 void 6200 win_comp_scroll(win_T *wp) 6201 { 6202 wp->w_p_scr = ((unsigned)wp->w_height >> 1); 6203 if (wp->w_p_scr == 0) 6204 wp->w_p_scr = 1; 6205 } 6206 6207 /* 6208 * command_height: called whenever p_ch has been changed 6209 */ 6210 void 6211 command_height(void) 6212 { 6213 int h; 6214 frame_T *frp; 6215 int old_p_ch = curtab->tp_ch_used; 6216 6217 // Use the value of p_ch that we remembered. This is needed for when the 6218 // GUI starts up, we can't be sure in what order things happen. And when 6219 // p_ch was changed in another tab page. 6220 curtab->tp_ch_used = p_ch; 6221 6222 // Find bottom frame with width of screen. 6223 frp = lastwin->w_frame; 6224 while (frp->fr_width != Columns && frp->fr_parent != NULL) 6225 frp = frp->fr_parent; 6226 6227 // Avoid changing the height of a window with 'winfixheight' set. 6228 while (frp->fr_prev != NULL && frp->fr_layout == FR_LEAF 6229 && frp->fr_win->w_p_wfh) 6230 frp = frp->fr_prev; 6231 6232 if (starting != NO_SCREEN) 6233 { 6234 cmdline_row = Rows - p_ch; 6235 6236 if (p_ch > old_p_ch) // p_ch got bigger 6237 { 6238 while (p_ch > old_p_ch) 6239 { 6240 if (frp == NULL) 6241 { 6242 emsg(_(e_noroom)); 6243 p_ch = old_p_ch; 6244 curtab->tp_ch_used = p_ch; 6245 cmdline_row = Rows - p_ch; 6246 break; 6247 } 6248 h = frp->fr_height - frame_minheight(frp, NULL); 6249 if (h > p_ch - old_p_ch) 6250 h = p_ch - old_p_ch; 6251 old_p_ch += h; 6252 frame_add_height(frp, -h); 6253 frp = frp->fr_prev; 6254 } 6255 6256 // Recompute window positions. 6257 (void)win_comp_pos(); 6258 6259 // clear the lines added to cmdline 6260 if (full_screen) 6261 screen_fill((int)(cmdline_row), (int)Rows, 0, 6262 (int)Columns, ' ', ' ', 0); 6263 msg_row = cmdline_row; 6264 redraw_cmdline = TRUE; 6265 return; 6266 } 6267 6268 if (msg_row < cmdline_row) 6269 msg_row = cmdline_row; 6270 redraw_cmdline = TRUE; 6271 } 6272 frame_add_height(frp, (int)(old_p_ch - p_ch)); 6273 6274 // Recompute window positions. 6275 if (frp != lastwin->w_frame) 6276 (void)win_comp_pos(); 6277 } 6278 6279 /* 6280 * Resize frame "frp" to be "n" lines higher (negative for less high). 6281 * Also resize the frames it is contained in. 6282 */ 6283 static void 6284 frame_add_height(frame_T *frp, int n) 6285 { 6286 frame_new_height(frp, frp->fr_height + n, FALSE, FALSE); 6287 for (;;) 6288 { 6289 frp = frp->fr_parent; 6290 if (frp == NULL) 6291 break; 6292 frp->fr_height += n; 6293 } 6294 } 6295 6296 /* 6297 * Add or remove a status line for the bottom window(s), according to the 6298 * value of 'laststatus'. 6299 */ 6300 void 6301 last_status( 6302 int morewin) // pretend there are two or more windows 6303 { 6304 // Don't make a difference between horizontal or vertical split. 6305 last_status_rec(topframe, (p_ls == 2 6306 || (p_ls == 1 && (morewin || !ONE_WINDOW)))); 6307 } 6308 6309 static void 6310 last_status_rec(frame_T *fr, int statusline) 6311 { 6312 frame_T *fp; 6313 win_T *wp; 6314 6315 if (fr->fr_layout == FR_LEAF) 6316 { 6317 wp = fr->fr_win; 6318 if (wp->w_status_height != 0 && !statusline) 6319 { 6320 // remove status line 6321 win_new_height(wp, wp->w_height + 1); 6322 wp->w_status_height = 0; 6323 comp_col(); 6324 } 6325 else if (wp->w_status_height == 0 && statusline) 6326 { 6327 // Find a frame to take a line from. 6328 fp = fr; 6329 while (fp->fr_height <= frame_minheight(fp, NULL)) 6330 { 6331 if (fp == topframe) 6332 { 6333 emsg(_(e_noroom)); 6334 return; 6335 } 6336 // In a column of frames: go to frame above. If already at 6337 // the top or in a row of frames: go to parent. 6338 if (fp->fr_parent->fr_layout == FR_COL && fp->fr_prev != NULL) 6339 fp = fp->fr_prev; 6340 else 6341 fp = fp->fr_parent; 6342 } 6343 wp->w_status_height = 1; 6344 if (fp != fr) 6345 { 6346 frame_new_height(fp, fp->fr_height - 1, FALSE, FALSE); 6347 frame_fix_height(wp); 6348 (void)win_comp_pos(); 6349 } 6350 else 6351 win_new_height(wp, wp->w_height - 1); 6352 comp_col(); 6353 redraw_all_later(SOME_VALID); 6354 } 6355 } 6356 else if (fr->fr_layout == FR_ROW) 6357 { 6358 // vertically split windows, set status line for each one 6359 FOR_ALL_FRAMES(fp, fr->fr_child) 6360 last_status_rec(fp, statusline); 6361 } 6362 else 6363 { 6364 // horizontally split window, set status line for last one 6365 for (fp = fr->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 6366 ; 6367 last_status_rec(fp, statusline); 6368 } 6369 } 6370 6371 /* 6372 * Return the number of lines used by the tab page line. 6373 */ 6374 int 6375 tabline_height(void) 6376 { 6377 #ifdef FEAT_GUI_TABLINE 6378 // When the GUI has the tabline then this always returns zero. 6379 if (gui_use_tabline()) 6380 return 0; 6381 #endif 6382 switch (p_stal) 6383 { 6384 case 0: return 0; 6385 case 1: return (first_tabpage->tp_next == NULL) ? 0 : 1; 6386 } 6387 return 1; 6388 } 6389 6390 /* 6391 * Return the minimal number of rows that is needed on the screen to display 6392 * the current number of windows. 6393 */ 6394 int 6395 min_rows(void) 6396 { 6397 int total; 6398 tabpage_T *tp; 6399 int n; 6400 6401 if (firstwin == NULL) // not initialized yet 6402 return MIN_LINES; 6403 6404 total = 0; 6405 FOR_ALL_TABPAGES(tp) 6406 { 6407 n = frame_minheight(tp->tp_topframe, NULL); 6408 if (total < n) 6409 total = n; 6410 } 6411 total += tabline_height(); 6412 total += 1; // count the room for the command line 6413 return total; 6414 } 6415 6416 /* 6417 * Return TRUE if there is only one window and only one tab page, not 6418 * counting a help or preview window, unless it is the current window. 6419 * Does not count unlisted windows. 6420 */ 6421 int 6422 only_one_window(void) 6423 { 6424 int count = 0; 6425 win_T *wp; 6426 6427 // If there is another tab page there always is another window. 6428 if (first_tabpage->tp_next != NULL) 6429 return FALSE; 6430 6431 FOR_ALL_WINDOWS(wp) 6432 if (wp->w_buffer != NULL 6433 && (!((bt_help(wp->w_buffer) && !bt_help(curbuf)) 6434 # ifdef FEAT_QUICKFIX 6435 || wp->w_p_pvw 6436 # endif 6437 ) || wp == curwin) && wp != aucmd_win) 6438 ++count; 6439 return (count <= 1); 6440 } 6441 6442 /* 6443 * Correct the cursor line number in other windows. Used after changing the 6444 * current buffer, and before applying autocommands. 6445 * When "do_curwin" is TRUE, also check current window. 6446 */ 6447 void 6448 check_lnums(int do_curwin) 6449 { 6450 win_T *wp; 6451 tabpage_T *tp; 6452 6453 FOR_ALL_TAB_WINDOWS(tp, wp) 6454 if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) 6455 { 6456 // save the original cursor position and topline 6457 wp->w_save_cursor.w_cursor_save = wp->w_cursor; 6458 wp->w_save_cursor.w_topline_save = wp->w_topline; 6459 6460 if (wp->w_cursor.lnum > curbuf->b_ml.ml_line_count) 6461 wp->w_cursor.lnum = curbuf->b_ml.ml_line_count; 6462 if (wp->w_topline > curbuf->b_ml.ml_line_count) 6463 wp->w_topline = curbuf->b_ml.ml_line_count; 6464 6465 // save the corrected cursor position and topline 6466 wp->w_save_cursor.w_cursor_corr = wp->w_cursor; 6467 wp->w_save_cursor.w_topline_corr = wp->w_topline; 6468 } 6469 } 6470 6471 /* 6472 * Reset cursor and topline to its stored values from check_lnums(). 6473 * check_lnums() must have been called first! 6474 */ 6475 void 6476 reset_lnums() 6477 { 6478 win_T *wp; 6479 tabpage_T *tp; 6480 6481 FOR_ALL_TAB_WINDOWS(tp, wp) 6482 if (wp->w_buffer == curbuf) 6483 { 6484 // Restore the value if the autocommand didn't change it. 6485 if (EQUAL_POS(wp->w_save_cursor.w_cursor_corr, wp->w_cursor)) 6486 wp->w_cursor = wp->w_save_cursor.w_cursor_save; 6487 if (wp->w_save_cursor.w_topline_corr == wp->w_topline) 6488 wp->w_topline = wp->w_save_cursor.w_topline_save; 6489 } 6490 } 6491 6492 /* 6493 * A snapshot of the window sizes, to restore them after closing the help 6494 * window. 6495 * Only these fields are used: 6496 * fr_layout 6497 * fr_width 6498 * fr_height 6499 * fr_next 6500 * fr_child 6501 * fr_win (only valid for the old curwin, NULL otherwise) 6502 */ 6503 6504 /* 6505 * Create a snapshot of the current frame sizes. 6506 */ 6507 void 6508 make_snapshot(int idx) 6509 { 6510 clear_snapshot(curtab, idx); 6511 make_snapshot_rec(topframe, &curtab->tp_snapshot[idx]); 6512 } 6513 6514 static void 6515 make_snapshot_rec(frame_T *fr, frame_T **frp) 6516 { 6517 *frp = ALLOC_CLEAR_ONE(frame_T); 6518 if (*frp == NULL) 6519 return; 6520 (*frp)->fr_layout = fr->fr_layout; 6521 (*frp)->fr_width = fr->fr_width; 6522 (*frp)->fr_height = fr->fr_height; 6523 if (fr->fr_next != NULL) 6524 make_snapshot_rec(fr->fr_next, &((*frp)->fr_next)); 6525 if (fr->fr_child != NULL) 6526 make_snapshot_rec(fr->fr_child, &((*frp)->fr_child)); 6527 if (fr->fr_layout == FR_LEAF && fr->fr_win == curwin) 6528 (*frp)->fr_win = curwin; 6529 } 6530 6531 /* 6532 * Remove any existing snapshot. 6533 */ 6534 static void 6535 clear_snapshot(tabpage_T *tp, int idx) 6536 { 6537 clear_snapshot_rec(tp->tp_snapshot[idx]); 6538 tp->tp_snapshot[idx] = NULL; 6539 } 6540 6541 static void 6542 clear_snapshot_rec(frame_T *fr) 6543 { 6544 if (fr != NULL) 6545 { 6546 clear_snapshot_rec(fr->fr_next); 6547 clear_snapshot_rec(fr->fr_child); 6548 vim_free(fr); 6549 } 6550 } 6551 6552 /* 6553 * Restore a previously created snapshot, if there is any. 6554 * This is only done if the screen size didn't change and the window layout is 6555 * still the same. 6556 */ 6557 void 6558 restore_snapshot( 6559 int idx, 6560 int close_curwin) // closing current window 6561 { 6562 win_T *wp; 6563 6564 if (curtab->tp_snapshot[idx] != NULL 6565 && curtab->tp_snapshot[idx]->fr_width == topframe->fr_width 6566 && curtab->tp_snapshot[idx]->fr_height == topframe->fr_height 6567 && check_snapshot_rec(curtab->tp_snapshot[idx], topframe) == OK) 6568 { 6569 wp = restore_snapshot_rec(curtab->tp_snapshot[idx], topframe); 6570 win_comp_pos(); 6571 if (wp != NULL && close_curwin) 6572 win_goto(wp); 6573 redraw_all_later(NOT_VALID); 6574 } 6575 clear_snapshot(curtab, idx); 6576 } 6577 6578 /* 6579 * Check if frames "sn" and "fr" have the same layout, same following frames 6580 * and same children. And the window pointer is valid. 6581 */ 6582 static int 6583 check_snapshot_rec(frame_T *sn, frame_T *fr) 6584 { 6585 if (sn->fr_layout != fr->fr_layout 6586 || (sn->fr_next == NULL) != (fr->fr_next == NULL) 6587 || (sn->fr_child == NULL) != (fr->fr_child == NULL) 6588 || (sn->fr_next != NULL 6589 && check_snapshot_rec(sn->fr_next, fr->fr_next) == FAIL) 6590 || (sn->fr_child != NULL 6591 && check_snapshot_rec(sn->fr_child, fr->fr_child) == FAIL) 6592 || (sn->fr_win != NULL && !win_valid(sn->fr_win))) 6593 return FAIL; 6594 return OK; 6595 } 6596 6597 /* 6598 * Copy the size of snapshot frame "sn" to frame "fr". Do the same for all 6599 * following frames and children. 6600 * Returns a pointer to the old current window, or NULL. 6601 */ 6602 static win_T * 6603 restore_snapshot_rec(frame_T *sn, frame_T *fr) 6604 { 6605 win_T *wp = NULL; 6606 win_T *wp2; 6607 6608 fr->fr_height = sn->fr_height; 6609 fr->fr_width = sn->fr_width; 6610 if (fr->fr_layout == FR_LEAF) 6611 { 6612 frame_new_height(fr, fr->fr_height, FALSE, FALSE); 6613 frame_new_width(fr, fr->fr_width, FALSE, FALSE); 6614 wp = sn->fr_win; 6615 } 6616 if (sn->fr_next != NULL) 6617 { 6618 wp2 = restore_snapshot_rec(sn->fr_next, fr->fr_next); 6619 if (wp2 != NULL) 6620 wp = wp2; 6621 } 6622 if (sn->fr_child != NULL) 6623 { 6624 wp2 = restore_snapshot_rec(sn->fr_child, fr->fr_child); 6625 if (wp2 != NULL) 6626 wp = wp2; 6627 } 6628 return wp; 6629 } 6630 6631 #if defined(FEAT_GUI) || defined(PROTO) 6632 /* 6633 * Return TRUE if there is any vertically split window. 6634 */ 6635 int 6636 win_hasvertsplit(void) 6637 { 6638 frame_T *fr; 6639 6640 if (topframe->fr_layout == FR_ROW) 6641 return TRUE; 6642 6643 if (topframe->fr_layout == FR_COL) 6644 FOR_ALL_FRAMES(fr, topframe->fr_child) 6645 if (fr->fr_layout == FR_ROW) 6646 return TRUE; 6647 6648 return FALSE; 6649 } 6650 #endif 6651 6652 #if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO) 6653 int 6654 get_win_number(win_T *wp, win_T *first_win) 6655 { 6656 int i = 1; 6657 win_T *w; 6658 6659 for (w = first_win; w != NULL && w != wp; w = W_NEXT(w)) 6660 ++i; 6661 6662 if (w == NULL) 6663 return 0; 6664 else 6665 return i; 6666 } 6667 6668 int 6669 get_tab_number(tabpage_T *tp UNUSED) 6670 { 6671 int i = 1; 6672 tabpage_T *t; 6673 6674 for (t = first_tabpage; t != NULL && t != tp; t = t->tp_next) 6675 ++i; 6676 6677 if (t == NULL) 6678 return 0; 6679 else 6680 return i; 6681 } 6682 #endif 6683 6684 /* 6685 * Return TRUE if "topfrp" and its children are at the right height. 6686 */ 6687 static int 6688 frame_check_height(frame_T *topfrp, int height) 6689 { 6690 frame_T *frp; 6691 6692 if (topfrp->fr_height != height) 6693 return FALSE; 6694 6695 if (topfrp->fr_layout == FR_ROW) 6696 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6697 if (frp->fr_height != height) 6698 return FALSE; 6699 6700 return TRUE; 6701 } 6702 6703 /* 6704 * Return TRUE if "topfrp" and its children are at the right width. 6705 */ 6706 static int 6707 frame_check_width(frame_T *topfrp, int width) 6708 { 6709 frame_T *frp; 6710 6711 if (topfrp->fr_width != width) 6712 return FALSE; 6713 6714 if (topfrp->fr_layout == FR_COL) 6715 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6716 if (frp->fr_width != width) 6717 return FALSE; 6718 6719 return TRUE; 6720 } 6721 6722 #if defined(FEAT_SYN_HL) || defined(PROTO) 6723 /* 6724 * Simple int comparison function for use with qsort() 6725 */ 6726 static int 6727 int_cmp(const void *a, const void *b) 6728 { 6729 return *(const int *)a - *(const int *)b; 6730 } 6731 6732 /* 6733 * Handle setting 'colorcolumn' or 'textwidth' in window "wp". 6734 * Returns error message, NULL if it's OK. 6735 */ 6736 char * 6737 check_colorcolumn(win_T *wp) 6738 { 6739 char_u *s; 6740 int col; 6741 int count = 0; 6742 int color_cols[256]; 6743 int i; 6744 int j = 0; 6745 6746 if (wp->w_buffer == NULL) 6747 return NULL; // buffer was closed 6748 6749 for (s = wp->w_p_cc; *s != NUL && count < 255;) 6750 { 6751 if (*s == '-' || *s == '+') 6752 { 6753 // -N and +N: add to 'textwidth' 6754 col = (*s == '-') ? -1 : 1; 6755 ++s; 6756 if (!VIM_ISDIGIT(*s)) 6757 return e_invarg; 6758 col = col * getdigits(&s); 6759 if (wp->w_buffer->b_p_tw == 0) 6760 goto skip; // 'textwidth' not set, skip this item 6761 col += wp->w_buffer->b_p_tw; 6762 if (col < 0) 6763 goto skip; 6764 } 6765 else if (VIM_ISDIGIT(*s)) 6766 col = getdigits(&s); 6767 else 6768 return e_invarg; 6769 color_cols[count++] = col - 1; // 1-based to 0-based 6770 skip: 6771 if (*s == NUL) 6772 break; 6773 if (*s != ',') 6774 return e_invarg; 6775 if (*++s == NUL) 6776 return e_invarg; // illegal trailing comma as in "set cc=80," 6777 } 6778 6779 vim_free(wp->w_p_cc_cols); 6780 if (count == 0) 6781 wp->w_p_cc_cols = NULL; 6782 else 6783 { 6784 wp->w_p_cc_cols = ALLOC_MULT(int, count + 1); 6785 if (wp->w_p_cc_cols != NULL) 6786 { 6787 // sort the columns for faster usage on screen redraw inside 6788 // win_line() 6789 qsort(color_cols, count, sizeof(int), int_cmp); 6790 6791 for (i = 0; i < count; ++i) 6792 // skip duplicates 6793 if (j == 0 || wp->w_p_cc_cols[j - 1] != color_cols[i]) 6794 wp->w_p_cc_cols[j++] = color_cols[i]; 6795 wp->w_p_cc_cols[j] = -1; // end marker 6796 } 6797 } 6798 6799 return NULL; // no error 6800 } 6801 #endif 6802