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); 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, FALSE); 2681 2682 // Careful: Autocommands may have closed the tab page or made it the 2683 // current tab page. 2684 for (ptp = first_tabpage; ptp != NULL && ptp != tp; ptp = ptp->tp_next) 2685 ; 2686 if (ptp == NULL || tp == curtab) 2687 return; 2688 2689 // Autocommands may have closed the window already. 2690 for (wp = tp->tp_firstwin; wp != NULL && wp != win; wp = wp->w_next) 2691 ; 2692 if (wp == NULL) 2693 return; 2694 2695 // When closing the last window in a tab page remove the tab page. 2696 if (tp->tp_firstwin == tp->tp_lastwin) 2697 { 2698 if (tp == first_tabpage) 2699 first_tabpage = tp->tp_next; 2700 else 2701 { 2702 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tp; 2703 ptp = ptp->tp_next) 2704 ; 2705 if (ptp == NULL) 2706 { 2707 internal_error("win_close_othertab()"); 2708 return; 2709 } 2710 ptp->tp_next = tp->tp_next; 2711 } 2712 free_tp = TRUE; 2713 } 2714 2715 // Free the memory used for the window. 2716 win_free_mem(win, &dir, tp); 2717 2718 if (free_tp) 2719 free_tabpage(tp); 2720 } 2721 2722 /* 2723 * Free the memory used for a window. 2724 * Returns a pointer to the window that got the freed up space. 2725 */ 2726 static win_T * 2727 win_free_mem( 2728 win_T *win, 2729 int *dirp, // set to 'v' or 'h' for direction if 'ea' 2730 tabpage_T *tp) // tab page "win" is in, NULL for current 2731 { 2732 frame_T *frp; 2733 win_T *wp; 2734 2735 // Remove the window and its frame from the tree of frames. 2736 frp = win->w_frame; 2737 wp = winframe_remove(win, dirp, tp); 2738 vim_free(frp); 2739 win_free(win, tp); 2740 2741 // When deleting the current window of another tab page select a new 2742 // current window. 2743 if (tp != NULL && win == tp->tp_curwin) 2744 tp->tp_curwin = wp; 2745 2746 return wp; 2747 } 2748 2749 #if defined(EXITFREE) || defined(PROTO) 2750 void 2751 win_free_all(void) 2752 { 2753 int dummy; 2754 2755 while (first_tabpage->tp_next != NULL) 2756 tabpage_close(TRUE); 2757 2758 if (aucmd_win != NULL) 2759 { 2760 (void)win_free_mem(aucmd_win, &dummy, NULL); 2761 aucmd_win = NULL; 2762 } 2763 # ifdef FEAT_PROP_POPUP 2764 close_all_popups(); 2765 # endif 2766 2767 while (firstwin != NULL) 2768 (void)win_free_mem(firstwin, &dummy, NULL); 2769 2770 // No window should be used after this. Set curwin to NULL to crash 2771 // instead of using freed memory. 2772 curwin = NULL; 2773 } 2774 #endif 2775 2776 /* 2777 * Remove a window and its frame from the tree of frames. 2778 * Returns a pointer to the window that got the freed up space. 2779 */ 2780 win_T * 2781 winframe_remove( 2782 win_T *win, 2783 int *dirp UNUSED, // set to 'v' or 'h' for direction if 'ea' 2784 tabpage_T *tp) // tab page "win" is in, NULL for current 2785 { 2786 frame_T *frp, *frp2, *frp3; 2787 frame_T *frp_close = win->w_frame; 2788 win_T *wp; 2789 2790 /* 2791 * If there is only one window there is nothing to remove. 2792 */ 2793 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 2794 return NULL; 2795 2796 /* 2797 * Remove the window from its frame. 2798 */ 2799 frp2 = win_altframe(win, tp); 2800 wp = frame2win(frp2); 2801 2802 // Remove this frame from the list of frames. 2803 frame_remove(frp_close); 2804 2805 if (frp_close->fr_parent->fr_layout == FR_COL) 2806 { 2807 // When 'winfixheight' is set, try to find another frame in the column 2808 // (as close to the closed frame as possible) to distribute the height 2809 // to. 2810 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfh) 2811 { 2812 frp = frp_close->fr_prev; 2813 frp3 = frp_close->fr_next; 2814 while (frp != NULL || frp3 != NULL) 2815 { 2816 if (frp != NULL) 2817 { 2818 if (!frame_fixed_height(frp)) 2819 { 2820 frp2 = frp; 2821 wp = frame2win(frp2); 2822 break; 2823 } 2824 frp = frp->fr_prev; 2825 } 2826 if (frp3 != NULL) 2827 { 2828 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfh) 2829 { 2830 frp2 = frp3; 2831 wp = frp3->fr_win; 2832 break; 2833 } 2834 frp3 = frp3->fr_next; 2835 } 2836 } 2837 } 2838 frame_new_height(frp2, frp2->fr_height + frp_close->fr_height, 2839 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2840 *dirp = 'v'; 2841 } 2842 else 2843 { 2844 // When 'winfixwidth' is set, try to find another frame in the column 2845 // (as close to the closed frame as possible) to distribute the width 2846 // to. 2847 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfw) 2848 { 2849 frp = frp_close->fr_prev; 2850 frp3 = frp_close->fr_next; 2851 while (frp != NULL || frp3 != NULL) 2852 { 2853 if (frp != NULL) 2854 { 2855 if (!frame_fixed_width(frp)) 2856 { 2857 frp2 = frp; 2858 wp = frame2win(frp2); 2859 break; 2860 } 2861 frp = frp->fr_prev; 2862 } 2863 if (frp3 != NULL) 2864 { 2865 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfw) 2866 { 2867 frp2 = frp3; 2868 wp = frp3->fr_win; 2869 break; 2870 } 2871 frp3 = frp3->fr_next; 2872 } 2873 } 2874 } 2875 frame_new_width(frp2, frp2->fr_width + frp_close->fr_width, 2876 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2877 *dirp = 'h'; 2878 } 2879 2880 // If rows/columns go to a window below/right its positions need to be 2881 // updated. Can only be done after the sizes have been updated. 2882 if (frp2 == frp_close->fr_next) 2883 { 2884 int row = win->w_winrow; 2885 int col = win->w_wincol; 2886 2887 frame_comp_pos(frp2, &row, &col); 2888 } 2889 2890 if (frp2->fr_next == NULL && frp2->fr_prev == NULL) 2891 { 2892 // There is no other frame in this list, move its info to the parent 2893 // and remove it. 2894 frp2->fr_parent->fr_layout = frp2->fr_layout; 2895 frp2->fr_parent->fr_child = frp2->fr_child; 2896 FOR_ALL_FRAMES(frp, frp2->fr_child) 2897 frp->fr_parent = frp2->fr_parent; 2898 frp2->fr_parent->fr_win = frp2->fr_win; 2899 if (frp2->fr_win != NULL) 2900 frp2->fr_win->w_frame = frp2->fr_parent; 2901 frp = frp2->fr_parent; 2902 if (topframe->fr_child == frp2) 2903 topframe->fr_child = frp; 2904 vim_free(frp2); 2905 2906 frp2 = frp->fr_parent; 2907 if (frp2 != NULL && frp2->fr_layout == frp->fr_layout) 2908 { 2909 // The frame above the parent has the same layout, have to merge 2910 // the frames into this list. 2911 if (frp2->fr_child == frp) 2912 frp2->fr_child = frp->fr_child; 2913 frp->fr_child->fr_prev = frp->fr_prev; 2914 if (frp->fr_prev != NULL) 2915 frp->fr_prev->fr_next = frp->fr_child; 2916 for (frp3 = frp->fr_child; ; frp3 = frp3->fr_next) 2917 { 2918 frp3->fr_parent = frp2; 2919 if (frp3->fr_next == NULL) 2920 { 2921 frp3->fr_next = frp->fr_next; 2922 if (frp->fr_next != NULL) 2923 frp->fr_next->fr_prev = frp3; 2924 break; 2925 } 2926 } 2927 if (topframe->fr_child == frp) 2928 topframe->fr_child = frp2; 2929 vim_free(frp); 2930 } 2931 } 2932 2933 return wp; 2934 } 2935 2936 /* 2937 * Return a pointer to the frame that will receive the empty screen space that 2938 * is left over after "win" is closed. 2939 * 2940 * If 'splitbelow' or 'splitright' is set, the space goes above or to the left 2941 * by default. Otherwise, the free space goes below or to the right. The 2942 * result is that opening a window and then immediately closing it will 2943 * preserve the initial window layout. The 'wfh' and 'wfw' settings are 2944 * respected when possible. 2945 */ 2946 static frame_T * 2947 win_altframe( 2948 win_T *win, 2949 tabpage_T *tp) // tab page "win" is in, NULL for current 2950 { 2951 frame_T *frp; 2952 frame_T *other_fr, *target_fr; 2953 2954 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 2955 return alt_tabpage()->tp_curwin->w_frame; 2956 2957 frp = win->w_frame; 2958 2959 if (frp->fr_prev == NULL) 2960 return frp->fr_next; 2961 if (frp->fr_next == NULL) 2962 return frp->fr_prev; 2963 2964 target_fr = frp->fr_next; 2965 other_fr = frp->fr_prev; 2966 if (p_spr || p_sb) 2967 { 2968 target_fr = frp->fr_prev; 2969 other_fr = frp->fr_next; 2970 } 2971 2972 // If 'wfh' or 'wfw' is set for the target and not for the alternate 2973 // window, reverse the selection. 2974 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW) 2975 { 2976 if (frame_fixed_width(target_fr) && !frame_fixed_width(other_fr)) 2977 target_fr = other_fr; 2978 } 2979 else 2980 { 2981 if (frame_fixed_height(target_fr) && !frame_fixed_height(other_fr)) 2982 target_fr = other_fr; 2983 } 2984 2985 return target_fr; 2986 } 2987 2988 /* 2989 * Return the tabpage that will be used if the current one is closed. 2990 */ 2991 static tabpage_T * 2992 alt_tabpage(void) 2993 { 2994 tabpage_T *tp; 2995 2996 // Use the next tab page if possible. 2997 if (curtab->tp_next != NULL) 2998 return curtab->tp_next; 2999 3000 // Find the last but one tab page. 3001 for (tp = first_tabpage; tp->tp_next != curtab; tp = tp->tp_next) 3002 ; 3003 return tp; 3004 } 3005 3006 /* 3007 * Find the left-upper window in frame "frp". 3008 */ 3009 static win_T * 3010 frame2win(frame_T *frp) 3011 { 3012 while (frp->fr_win == NULL) 3013 frp = frp->fr_child; 3014 return frp->fr_win; 3015 } 3016 3017 /* 3018 * Return TRUE if frame "frp" contains window "wp". 3019 */ 3020 static int 3021 frame_has_win(frame_T *frp, win_T *wp) 3022 { 3023 frame_T *p; 3024 3025 if (frp->fr_layout == FR_LEAF) 3026 return frp->fr_win == wp; 3027 3028 FOR_ALL_FRAMES(p, frp->fr_child) 3029 if (frame_has_win(p, wp)) 3030 return TRUE; 3031 return FALSE; 3032 } 3033 3034 /* 3035 * Set a new height for a frame. Recursively sets the height for contained 3036 * frames and windows. Caller must take care of positions. 3037 */ 3038 static void 3039 frame_new_height( 3040 frame_T *topfrp, 3041 int height, 3042 int topfirst, // resize topmost contained frame first 3043 int wfh) // obey 'winfixheight' when there is a choice; 3044 // may cause the height not to be set 3045 { 3046 frame_T *frp; 3047 int extra_lines; 3048 int h; 3049 3050 if (topfrp->fr_win != NULL) 3051 { 3052 // Simple case: just one window. 3053 win_new_height(topfrp->fr_win, 3054 height - topfrp->fr_win->w_status_height 3055 - WINBAR_HEIGHT(topfrp->fr_win)); 3056 } 3057 else if (topfrp->fr_layout == FR_ROW) 3058 { 3059 do 3060 { 3061 // All frames in this row get the same new height. 3062 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3063 { 3064 frame_new_height(frp, height, topfirst, wfh); 3065 if (frp->fr_height > height) 3066 { 3067 // Could not fit the windows, make the whole row higher. 3068 height = frp->fr_height; 3069 break; 3070 } 3071 } 3072 } 3073 while (frp != NULL); 3074 } 3075 else // fr_layout == FR_COL 3076 { 3077 // Complicated case: Resize a column of frames. Resize the bottom 3078 // frame first, frames above that when needed. 3079 3080 frp = topfrp->fr_child; 3081 if (wfh) 3082 // Advance past frames with one window with 'wfh' set. 3083 while (frame_fixed_height(frp)) 3084 { 3085 frp = frp->fr_next; 3086 if (frp == NULL) 3087 return; // no frame without 'wfh', give up 3088 } 3089 if (!topfirst) 3090 { 3091 // Find the bottom frame of this column 3092 while (frp->fr_next != NULL) 3093 frp = frp->fr_next; 3094 if (wfh) 3095 // Advance back for frames with one window with 'wfh' set. 3096 while (frame_fixed_height(frp)) 3097 frp = frp->fr_prev; 3098 } 3099 3100 extra_lines = height - topfrp->fr_height; 3101 if (extra_lines < 0) 3102 { 3103 // reduce height of contained frames, bottom or top frame first 3104 while (frp != NULL) 3105 { 3106 h = frame_minheight(frp, NULL); 3107 if (frp->fr_height + extra_lines < h) 3108 { 3109 extra_lines += frp->fr_height - h; 3110 frame_new_height(frp, h, topfirst, wfh); 3111 } 3112 else 3113 { 3114 frame_new_height(frp, frp->fr_height + extra_lines, 3115 topfirst, wfh); 3116 break; 3117 } 3118 if (topfirst) 3119 { 3120 do 3121 frp = frp->fr_next; 3122 while (wfh && frp != NULL && frame_fixed_height(frp)); 3123 } 3124 else 3125 { 3126 do 3127 frp = frp->fr_prev; 3128 while (wfh && frp != NULL && frame_fixed_height(frp)); 3129 } 3130 // Increase "height" if we could not reduce enough frames. 3131 if (frp == NULL) 3132 height -= extra_lines; 3133 } 3134 } 3135 else if (extra_lines > 0) 3136 { 3137 // increase height of bottom or top frame 3138 frame_new_height(frp, frp->fr_height + extra_lines, topfirst, wfh); 3139 } 3140 } 3141 topfrp->fr_height = height; 3142 } 3143 3144 /* 3145 * Return TRUE if height of frame "frp" should not be changed because of 3146 * the 'winfixheight' option. 3147 */ 3148 static int 3149 frame_fixed_height(frame_T *frp) 3150 { 3151 // frame with one window: fixed height if 'winfixheight' set. 3152 if (frp->fr_win != NULL) 3153 return frp->fr_win->w_p_wfh; 3154 3155 if (frp->fr_layout == FR_ROW) 3156 { 3157 // The frame is fixed height if one of the frames in the row is fixed 3158 // height. 3159 FOR_ALL_FRAMES(frp, frp->fr_child) 3160 if (frame_fixed_height(frp)) 3161 return TRUE; 3162 return FALSE; 3163 } 3164 3165 // frp->fr_layout == FR_COL: The frame is fixed height if all of the 3166 // frames in the row are fixed height. 3167 FOR_ALL_FRAMES(frp, frp->fr_child) 3168 if (!frame_fixed_height(frp)) 3169 return FALSE; 3170 return TRUE; 3171 } 3172 3173 /* 3174 * Return TRUE if width of frame "frp" should not be changed because of 3175 * the 'winfixwidth' option. 3176 */ 3177 static int 3178 frame_fixed_width(frame_T *frp) 3179 { 3180 // frame with one window: fixed width if 'winfixwidth' set. 3181 if (frp->fr_win != NULL) 3182 return frp->fr_win->w_p_wfw; 3183 3184 if (frp->fr_layout == FR_COL) 3185 { 3186 // The frame is fixed width if one of the frames in the row is fixed 3187 // width. 3188 FOR_ALL_FRAMES(frp, frp->fr_child) 3189 if (frame_fixed_width(frp)) 3190 return TRUE; 3191 return FALSE; 3192 } 3193 3194 // frp->fr_layout == FR_ROW: The frame is fixed width if all of the 3195 // frames in the row are fixed width. 3196 FOR_ALL_FRAMES(frp, frp->fr_child) 3197 if (!frame_fixed_width(frp)) 3198 return FALSE; 3199 return TRUE; 3200 } 3201 3202 /* 3203 * Add a status line to windows at the bottom of "frp". 3204 * Note: Does not check if there is room! 3205 */ 3206 static void 3207 frame_add_statusline(frame_T *frp) 3208 { 3209 win_T *wp; 3210 3211 if (frp->fr_layout == FR_LEAF) 3212 { 3213 wp = frp->fr_win; 3214 if (wp->w_status_height == 0) 3215 { 3216 if (wp->w_height > 0) // don't make it negative 3217 --wp->w_height; 3218 wp->w_status_height = STATUS_HEIGHT; 3219 } 3220 } 3221 else if (frp->fr_layout == FR_ROW) 3222 { 3223 // Handle all the frames in the row. 3224 FOR_ALL_FRAMES(frp, frp->fr_child) 3225 frame_add_statusline(frp); 3226 } 3227 else // frp->fr_layout == FR_COL 3228 { 3229 // Only need to handle the last frame in the column. 3230 for (frp = frp->fr_child; frp->fr_next != NULL; frp = frp->fr_next) 3231 ; 3232 frame_add_statusline(frp); 3233 } 3234 } 3235 3236 /* 3237 * Set width of a frame. Handles recursively going through contained frames. 3238 * May remove separator line for windows at the right side (for win_close()). 3239 */ 3240 static void 3241 frame_new_width( 3242 frame_T *topfrp, 3243 int width, 3244 int leftfirst, // resize leftmost contained frame first 3245 int wfw) // obey 'winfixwidth' when there is a choice; 3246 // may cause the width not to be set 3247 { 3248 frame_T *frp; 3249 int extra_cols; 3250 int w; 3251 win_T *wp; 3252 3253 if (topfrp->fr_layout == FR_LEAF) 3254 { 3255 // Simple case: just one window. 3256 wp = topfrp->fr_win; 3257 // Find out if there are any windows right of this one. 3258 for (frp = topfrp; frp->fr_parent != NULL; frp = frp->fr_parent) 3259 if (frp->fr_parent->fr_layout == FR_ROW && frp->fr_next != NULL) 3260 break; 3261 if (frp->fr_parent == NULL) 3262 wp->w_vsep_width = 0; 3263 win_new_width(wp, width - wp->w_vsep_width); 3264 } 3265 else if (topfrp->fr_layout == FR_COL) 3266 { 3267 do 3268 { 3269 // All frames in this column get the same new width. 3270 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3271 { 3272 frame_new_width(frp, width, leftfirst, wfw); 3273 if (frp->fr_width > width) 3274 { 3275 // Could not fit the windows, make whole column wider. 3276 width = frp->fr_width; 3277 break; 3278 } 3279 } 3280 } while (frp != NULL); 3281 } 3282 else // fr_layout == FR_ROW 3283 { 3284 // Complicated case: Resize a row of frames. Resize the rightmost 3285 // frame first, frames left of it when needed. 3286 3287 frp = topfrp->fr_child; 3288 if (wfw) 3289 // Advance past frames with one window with 'wfw' set. 3290 while (frame_fixed_width(frp)) 3291 { 3292 frp = frp->fr_next; 3293 if (frp == NULL) 3294 return; // no frame without 'wfw', give up 3295 } 3296 if (!leftfirst) 3297 { 3298 // Find the rightmost frame of this row 3299 while (frp->fr_next != NULL) 3300 frp = frp->fr_next; 3301 if (wfw) 3302 // Advance back for frames with one window with 'wfw' set. 3303 while (frame_fixed_width(frp)) 3304 frp = frp->fr_prev; 3305 } 3306 3307 extra_cols = width - topfrp->fr_width; 3308 if (extra_cols < 0) 3309 { 3310 // reduce frame width, rightmost frame first 3311 while (frp != NULL) 3312 { 3313 w = frame_minwidth(frp, NULL); 3314 if (frp->fr_width + extra_cols < w) 3315 { 3316 extra_cols += frp->fr_width - w; 3317 frame_new_width(frp, w, leftfirst, wfw); 3318 } 3319 else 3320 { 3321 frame_new_width(frp, frp->fr_width + extra_cols, 3322 leftfirst, wfw); 3323 break; 3324 } 3325 if (leftfirst) 3326 { 3327 do 3328 frp = frp->fr_next; 3329 while (wfw && frp != NULL && frame_fixed_width(frp)); 3330 } 3331 else 3332 { 3333 do 3334 frp = frp->fr_prev; 3335 while (wfw && frp != NULL && frame_fixed_width(frp)); 3336 } 3337 // Increase "width" if we could not reduce enough frames. 3338 if (frp == NULL) 3339 width -= extra_cols; 3340 } 3341 } 3342 else if (extra_cols > 0) 3343 { 3344 // increase width of rightmost frame 3345 frame_new_width(frp, frp->fr_width + extra_cols, leftfirst, wfw); 3346 } 3347 } 3348 topfrp->fr_width = width; 3349 } 3350 3351 /* 3352 * Add the vertical separator to windows at the right side of "frp". 3353 * Note: Does not check if there is room! 3354 */ 3355 static void 3356 frame_add_vsep(frame_T *frp) 3357 { 3358 win_T *wp; 3359 3360 if (frp->fr_layout == FR_LEAF) 3361 { 3362 wp = frp->fr_win; 3363 if (wp->w_vsep_width == 0) 3364 { 3365 if (wp->w_width > 0) // don't make it negative 3366 --wp->w_width; 3367 wp->w_vsep_width = 1; 3368 } 3369 } 3370 else if (frp->fr_layout == FR_COL) 3371 { 3372 // Handle all the frames in the column. 3373 FOR_ALL_FRAMES(frp, frp->fr_child) 3374 frame_add_vsep(frp); 3375 } 3376 else // frp->fr_layout == FR_ROW 3377 { 3378 // Only need to handle the last frame in the row. 3379 frp = frp->fr_child; 3380 while (frp->fr_next != NULL) 3381 frp = frp->fr_next; 3382 frame_add_vsep(frp); 3383 } 3384 } 3385 3386 /* 3387 * Set frame width from the window it contains. 3388 */ 3389 static void 3390 frame_fix_width(win_T *wp) 3391 { 3392 wp->w_frame->fr_width = wp->w_width + wp->w_vsep_width; 3393 } 3394 3395 /* 3396 * Set frame height from the window it contains. 3397 */ 3398 static void 3399 frame_fix_height(win_T *wp) 3400 { 3401 wp->w_frame->fr_height = VISIBLE_HEIGHT(wp) + wp->w_status_height; 3402 } 3403 3404 /* 3405 * Compute the minimal height for frame "topfrp". 3406 * Uses the 'winminheight' option. 3407 * When "next_curwin" isn't NULL, use p_wh for this window. 3408 * When "next_curwin" is NOWIN, don't use at least one line for the current 3409 * window. 3410 */ 3411 static int 3412 frame_minheight(frame_T *topfrp, win_T *next_curwin) 3413 { 3414 frame_T *frp; 3415 int m; 3416 int n; 3417 3418 if (topfrp->fr_win != NULL) 3419 { 3420 if (topfrp->fr_win == next_curwin) 3421 m = p_wh + topfrp->fr_win->w_status_height; 3422 else 3423 { 3424 // window: minimal height of the window plus status line 3425 m = p_wmh + topfrp->fr_win->w_status_height; 3426 if (topfrp->fr_win == curwin && next_curwin == NULL) 3427 { 3428 // Current window is minimal one line high and WinBar is 3429 // visible. 3430 if (p_wmh == 0) 3431 ++m; 3432 m += WINBAR_HEIGHT(curwin); 3433 } 3434 } 3435 } 3436 else if (topfrp->fr_layout == FR_ROW) 3437 { 3438 // get the minimal height from each frame in this row 3439 m = 0; 3440 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3441 { 3442 n = frame_minheight(frp, next_curwin); 3443 if (n > m) 3444 m = n; 3445 } 3446 } 3447 else 3448 { 3449 // Add up the minimal heights for all frames in this column. 3450 m = 0; 3451 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3452 m += frame_minheight(frp, next_curwin); 3453 } 3454 3455 return m; 3456 } 3457 3458 /* 3459 * Compute the minimal width for frame "topfrp". 3460 * When "next_curwin" isn't NULL, use p_wiw for this window. 3461 * When "next_curwin" is NOWIN, don't use at least one column for the current 3462 * window. 3463 */ 3464 static int 3465 frame_minwidth( 3466 frame_T *topfrp, 3467 win_T *next_curwin) // use p_wh and p_wiw for next_curwin 3468 { 3469 frame_T *frp; 3470 int m, n; 3471 3472 if (topfrp->fr_win != NULL) 3473 { 3474 if (topfrp->fr_win == next_curwin) 3475 m = p_wiw + topfrp->fr_win->w_vsep_width; 3476 else 3477 { 3478 // window: minimal width of the window plus separator column 3479 m = p_wmw + topfrp->fr_win->w_vsep_width; 3480 // Current window is minimal one column wide 3481 if (p_wmw == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3482 ++m; 3483 } 3484 } 3485 else if (topfrp->fr_layout == FR_COL) 3486 { 3487 // get the minimal width from each frame in this column 3488 m = 0; 3489 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3490 { 3491 n = frame_minwidth(frp, next_curwin); 3492 if (n > m) 3493 m = n; 3494 } 3495 } 3496 else 3497 { 3498 // Add up the minimal widths for all frames in this row. 3499 m = 0; 3500 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3501 m += frame_minwidth(frp, next_curwin); 3502 } 3503 3504 return m; 3505 } 3506 3507 3508 /* 3509 * Try to close all windows except current one. 3510 * Buffers in the other windows become hidden if 'hidden' is set, or '!' is 3511 * used and the buffer was modified. 3512 * 3513 * Used by ":bdel" and ":only". 3514 */ 3515 void 3516 close_others( 3517 int message, 3518 int forceit) // always hide all other windows 3519 { 3520 win_T *wp; 3521 win_T *nextwp; 3522 int r; 3523 3524 if (one_window()) 3525 { 3526 if (message && !autocmd_busy) 3527 msg(_(m_onlyone)); 3528 return; 3529 } 3530 3531 // Be very careful here: autocommands may change the window layout. 3532 for (wp = firstwin; win_valid(wp); wp = nextwp) 3533 { 3534 nextwp = wp->w_next; 3535 if (wp != curwin) // don't close current window 3536 { 3537 3538 // Check if it's allowed to abandon this window 3539 r = can_abandon(wp->w_buffer, forceit); 3540 if (!win_valid(wp)) // autocommands messed wp up 3541 { 3542 nextwp = firstwin; 3543 continue; 3544 } 3545 if (!r) 3546 { 3547 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 3548 if (message && (p_confirm || cmdmod.confirm) && p_write) 3549 { 3550 dialog_changed(wp->w_buffer, FALSE); 3551 if (!win_valid(wp)) // autocommands messed wp up 3552 { 3553 nextwp = firstwin; 3554 continue; 3555 } 3556 } 3557 if (bufIsChanged(wp->w_buffer)) 3558 #endif 3559 continue; 3560 } 3561 win_close(wp, !buf_hide(wp->w_buffer) 3562 && !bufIsChanged(wp->w_buffer)); 3563 } 3564 } 3565 3566 if (message && !ONE_WINDOW) 3567 emsg(_("E445: Other window contains changes")); 3568 } 3569 3570 static void 3571 win_init_empty(win_T *wp) 3572 { 3573 redraw_win_later(wp, NOT_VALID); 3574 wp->w_lines_valid = 0; 3575 wp->w_cursor.lnum = 1; 3576 wp->w_curswant = wp->w_cursor.col = 0; 3577 wp->w_cursor.coladd = 0; 3578 wp->w_pcmark.lnum = 1; // pcmark not cleared but set to line 1 3579 wp->w_pcmark.col = 0; 3580 wp->w_prev_pcmark.lnum = 0; 3581 wp->w_prev_pcmark.col = 0; 3582 wp->w_topline = 1; 3583 #ifdef FEAT_DIFF 3584 wp->w_topfill = 0; 3585 #endif 3586 wp->w_botline = 2; 3587 #if defined(FEAT_SYN_HL) || defined(FEAT_SPELL) 3588 wp->w_s = &wp->w_buffer->b_s; 3589 #endif 3590 } 3591 3592 /* 3593 * Init the current window "curwin". 3594 * Called when a new file is being edited. 3595 */ 3596 void 3597 curwin_init(void) 3598 { 3599 win_init_empty(curwin); 3600 } 3601 3602 /* 3603 * Allocate the first window and put an empty buffer in it. 3604 * Called from main(). 3605 * Return FAIL when something goes wrong (out of memory). 3606 */ 3607 int 3608 win_alloc_first(void) 3609 { 3610 if (win_alloc_firstwin(NULL) == FAIL) 3611 return FAIL; 3612 3613 first_tabpage = alloc_tabpage(); 3614 if (first_tabpage == NULL) 3615 return FAIL; 3616 first_tabpage->tp_topframe = topframe; 3617 curtab = first_tabpage; 3618 3619 return OK; 3620 } 3621 3622 /* 3623 * Allocate and init a window that is not a regular window. 3624 * This can only be done after the first window is fully initialized, thus it 3625 * can't be in win_alloc_first(). 3626 */ 3627 win_T * 3628 win_alloc_popup_win(void) 3629 { 3630 win_T *wp; 3631 3632 wp = win_alloc(NULL, TRUE); 3633 if (wp != NULL) 3634 { 3635 // We need to initialize options with something, using the current 3636 // window makes most sense. 3637 win_init_some(wp, curwin); 3638 3639 RESET_BINDING(wp); 3640 new_frame(wp); 3641 } 3642 return wp; 3643 } 3644 3645 /* 3646 * Initialize window "wp" to display buffer "buf". 3647 */ 3648 void 3649 win_init_popup_win(win_T *wp, buf_T *buf) 3650 { 3651 wp->w_buffer = buf; 3652 ++buf->b_nwindows; 3653 win_init_empty(wp); // set cursor and topline to safe values 3654 3655 // Make sure w_localdir and globaldir are NULL to avoid a chdir() in 3656 // win_enter_ext(). 3657 VIM_CLEAR(wp->w_localdir); 3658 } 3659 3660 /* 3661 * Allocate the first window or the first window in a new tab page. 3662 * When "oldwin" is NULL create an empty buffer for it. 3663 * When "oldwin" is not NULL copy info from it to the new window. 3664 * Return FAIL when something goes wrong (out of memory). 3665 */ 3666 static int 3667 win_alloc_firstwin(win_T *oldwin) 3668 { 3669 curwin = win_alloc(NULL, FALSE); 3670 if (oldwin == NULL) 3671 { 3672 // Very first window, need to create an empty buffer for it and 3673 // initialize from scratch. 3674 curbuf = buflist_new(NULL, NULL, 1L, BLN_LISTED); 3675 if (curwin == NULL || curbuf == NULL) 3676 return FAIL; 3677 curwin->w_buffer = curbuf; 3678 #ifdef FEAT_SYN_HL 3679 curwin->w_s = &(curbuf->b_s); 3680 #endif 3681 curbuf->b_nwindows = 1; // there is one window 3682 curwin->w_alist = &global_alist; 3683 curwin_init(); // init current window 3684 } 3685 else 3686 { 3687 // First window in new tab page, initialize it from "oldwin". 3688 win_init(curwin, oldwin, 0); 3689 3690 // We don't want cursor- and scroll-binding in the first window. 3691 RESET_BINDING(curwin); 3692 } 3693 3694 new_frame(curwin); 3695 if (curwin->w_frame == NULL) 3696 return FAIL; 3697 topframe = curwin->w_frame; 3698 topframe->fr_width = Columns; 3699 topframe->fr_height = Rows - p_ch; 3700 3701 return OK; 3702 } 3703 3704 /* 3705 * Create a frame for window "wp". 3706 */ 3707 static void 3708 new_frame(win_T *wp) 3709 { 3710 frame_T *frp = ALLOC_CLEAR_ONE(frame_T); 3711 3712 wp->w_frame = frp; 3713 if (frp != NULL) 3714 { 3715 frp->fr_layout = FR_LEAF; 3716 frp->fr_win = wp; 3717 } 3718 } 3719 3720 /* 3721 * Initialize the window and frame size to the maximum. 3722 */ 3723 void 3724 win_init_size(void) 3725 { 3726 firstwin->w_height = ROWS_AVAIL; 3727 topframe->fr_height = ROWS_AVAIL; 3728 firstwin->w_width = Columns; 3729 topframe->fr_width = Columns; 3730 } 3731 3732 /* 3733 * Allocate a new tabpage_T and init the values. 3734 * Returns NULL when out of memory. 3735 */ 3736 static tabpage_T * 3737 alloc_tabpage(void) 3738 { 3739 tabpage_T *tp; 3740 # ifdef FEAT_GUI 3741 int i; 3742 # endif 3743 3744 3745 tp = ALLOC_CLEAR_ONE(tabpage_T); 3746 if (tp == NULL) 3747 return NULL; 3748 3749 # ifdef FEAT_EVAL 3750 // init t: variables 3751 tp->tp_vars = dict_alloc(); 3752 if (tp->tp_vars == NULL) 3753 { 3754 vim_free(tp); 3755 return NULL; 3756 } 3757 init_var_dict(tp->tp_vars, &tp->tp_winvar, VAR_SCOPE); 3758 # endif 3759 3760 # ifdef FEAT_GUI 3761 for (i = 0; i < 3; i++) 3762 tp->tp_prev_which_scrollbars[i] = -1; 3763 # endif 3764 # ifdef FEAT_DIFF 3765 tp->tp_diff_invalid = TRUE; 3766 # endif 3767 tp->tp_ch_used = p_ch; 3768 3769 return tp; 3770 } 3771 3772 void 3773 free_tabpage(tabpage_T *tp) 3774 { 3775 int idx; 3776 3777 # ifdef FEAT_DIFF 3778 diff_clear(tp); 3779 # endif 3780 # ifdef FEAT_PROP_POPUP 3781 while (tp->tp_first_popupwin != NULL) 3782 popup_close_tabpage(tp, tp->tp_first_popupwin->w_id); 3783 #endif 3784 for (idx = 0; idx < SNAP_COUNT; ++idx) 3785 clear_snapshot(tp, idx); 3786 #ifdef FEAT_EVAL 3787 vars_clear(&tp->tp_vars->dv_hashtab); // free all t: variables 3788 hash_init(&tp->tp_vars->dv_hashtab); 3789 unref_var_dict(tp->tp_vars); 3790 #endif 3791 3792 vim_free(tp->tp_localdir); 3793 3794 #ifdef FEAT_PYTHON 3795 python_tabpage_free(tp); 3796 #endif 3797 3798 #ifdef FEAT_PYTHON3 3799 python3_tabpage_free(tp); 3800 #endif 3801 3802 vim_free(tp); 3803 } 3804 3805 /* 3806 * Create a new Tab page with one window. 3807 * It will edit the current buffer, like after ":split". 3808 * When "after" is 0 put it just after the current Tab page. 3809 * Otherwise put it just before tab page "after". 3810 * Return FAIL or OK. 3811 */ 3812 int 3813 win_new_tabpage(int after) 3814 { 3815 tabpage_T *tp = curtab; 3816 tabpage_T *newtp; 3817 int n; 3818 3819 newtp = alloc_tabpage(); 3820 if (newtp == NULL) 3821 return FAIL; 3822 3823 // Remember the current windows in this Tab page. 3824 if (leave_tabpage(curbuf, TRUE) == FAIL) 3825 { 3826 vim_free(newtp); 3827 return FAIL; 3828 } 3829 curtab = newtp; 3830 3831 newtp->tp_localdir = (tp->tp_localdir == NULL) 3832 ? NULL : vim_strsave(tp->tp_localdir); 3833 // Create a new empty window. 3834 if (win_alloc_firstwin(tp->tp_curwin) == OK) 3835 { 3836 // Make the new Tab page the new topframe. 3837 if (after == 1) 3838 { 3839 // New tab page becomes the first one. 3840 newtp->tp_next = first_tabpage; 3841 first_tabpage = newtp; 3842 } 3843 else 3844 { 3845 if (after > 0) 3846 { 3847 // Put new tab page before tab page "after". 3848 n = 2; 3849 for (tp = first_tabpage; tp->tp_next != NULL 3850 && n < after; tp = tp->tp_next) 3851 ++n; 3852 } 3853 newtp->tp_next = tp->tp_next; 3854 tp->tp_next = newtp; 3855 } 3856 win_init_size(); 3857 firstwin->w_winrow = tabline_height(); 3858 win_comp_scroll(curwin); 3859 3860 newtp->tp_topframe = topframe; 3861 last_status(FALSE); 3862 3863 #if defined(FEAT_GUI) 3864 // When 'guioptions' includes 'L' or 'R' may have to remove or add 3865 // scrollbars. Have to update them anyway. 3866 gui_may_update_scrollbars(); 3867 #endif 3868 #ifdef FEAT_JOB_CHANNEL 3869 entering_window(curwin); 3870 #endif 3871 3872 redraw_all_later(NOT_VALID); 3873 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 3874 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 3875 apply_autocmds(EVENT_TABNEW, NULL, NULL, FALSE, curbuf); 3876 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3877 return OK; 3878 } 3879 3880 // Failed, get back the previous Tab page 3881 enter_tabpage(curtab, curbuf, TRUE, TRUE); 3882 return FAIL; 3883 } 3884 3885 /* 3886 * Open a new tab page if ":tab cmd" was used. It will edit the same buffer, 3887 * like with ":split". 3888 * Returns OK if a new tab page was created, FAIL otherwise. 3889 */ 3890 static int 3891 may_open_tabpage(void) 3892 { 3893 int n = (cmdmod.tab == 0) ? postponed_split_tab : cmdmod.tab; 3894 3895 if (n != 0) 3896 { 3897 cmdmod.tab = 0; // reset it to avoid doing it twice 3898 postponed_split_tab = 0; 3899 return win_new_tabpage(n); 3900 } 3901 return FAIL; 3902 } 3903 3904 /* 3905 * Create up to "maxcount" tabpages with empty windows. 3906 * Returns the number of resulting tab pages. 3907 */ 3908 int 3909 make_tabpages(int maxcount) 3910 { 3911 int count = maxcount; 3912 int todo; 3913 3914 // Limit to 'tabpagemax' tabs. 3915 if (count > p_tpm) 3916 count = p_tpm; 3917 3918 /* 3919 * Don't execute autocommands while creating the tab pages. Must do that 3920 * when putting the buffers in the windows. 3921 */ 3922 block_autocmds(); 3923 3924 for (todo = count - 1; todo > 0; --todo) 3925 if (win_new_tabpage(0) == FAIL) 3926 break; 3927 3928 unblock_autocmds(); 3929 3930 // return actual number of tab pages 3931 return (count - todo); 3932 } 3933 3934 /* 3935 * Return TRUE when "tpc" points to a valid tab page. 3936 */ 3937 int 3938 valid_tabpage(tabpage_T *tpc) 3939 { 3940 tabpage_T *tp; 3941 3942 FOR_ALL_TABPAGES(tp) 3943 if (tp == tpc) 3944 return TRUE; 3945 return FALSE; 3946 } 3947 3948 /* 3949 * Return TRUE when "tpc" points to a valid tab page and at least one window is 3950 * valid. 3951 */ 3952 int 3953 valid_tabpage_win(tabpage_T *tpc) 3954 { 3955 tabpage_T *tp; 3956 win_T *wp; 3957 3958 FOR_ALL_TABPAGES(tp) 3959 { 3960 if (tp == tpc) 3961 { 3962 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 3963 { 3964 if (win_valid_any_tab(wp)) 3965 return TRUE; 3966 } 3967 return FALSE; 3968 } 3969 } 3970 // shouldn't happen 3971 return FALSE; 3972 } 3973 3974 /* 3975 * Close tabpage "tab", assuming it has no windows in it. 3976 * There must be another tabpage or this will crash. 3977 */ 3978 void 3979 close_tabpage(tabpage_T *tab) 3980 { 3981 tabpage_T *ptp; 3982 3983 if (tab == first_tabpage) 3984 { 3985 first_tabpage = tab->tp_next; 3986 ptp = first_tabpage; 3987 } 3988 else 3989 { 3990 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tab; 3991 ptp = ptp->tp_next) 3992 ; 3993 assert(ptp != NULL); 3994 ptp->tp_next = tab->tp_next; 3995 } 3996 3997 goto_tabpage_tp(ptp, FALSE, FALSE); 3998 free_tabpage(tab); 3999 } 4000 4001 /* 4002 * Find tab page "n" (first one is 1). Returns NULL when not found. 4003 */ 4004 tabpage_T * 4005 find_tabpage(int n) 4006 { 4007 tabpage_T *tp; 4008 int i = 1; 4009 4010 if (n == 0) 4011 return curtab; 4012 4013 for (tp = first_tabpage; tp != NULL && i != n; tp = tp->tp_next) 4014 ++i; 4015 return tp; 4016 } 4017 4018 /* 4019 * Get index of tab page "tp". First one has index 1. 4020 * When not found returns number of tab pages plus one. 4021 */ 4022 int 4023 tabpage_index(tabpage_T *ftp) 4024 { 4025 int i = 1; 4026 tabpage_T *tp; 4027 4028 for (tp = first_tabpage; tp != NULL && tp != ftp; tp = tp->tp_next) 4029 ++i; 4030 return i; 4031 } 4032 4033 /* 4034 * Prepare for leaving the current tab page. 4035 * When autocommands change "curtab" we don't leave the tab page and return 4036 * FAIL. 4037 * Careful: When OK is returned need to get a new tab page very very soon! 4038 */ 4039 static int 4040 leave_tabpage( 4041 buf_T *new_curbuf UNUSED, // what is going to be the new curbuf, 4042 // NULL if unknown 4043 int trigger_leave_autocmds UNUSED) 4044 { 4045 tabpage_T *tp = curtab; 4046 4047 #ifdef FEAT_JOB_CHANNEL 4048 leaving_window(curwin); 4049 #endif 4050 reset_VIsual_and_resel(); // stop Visual mode 4051 if (trigger_leave_autocmds) 4052 { 4053 if (new_curbuf != curbuf) 4054 { 4055 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4056 if (curtab != tp) 4057 return FAIL; 4058 } 4059 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4060 if (curtab != tp) 4061 return FAIL; 4062 apply_autocmds(EVENT_TABLEAVE, NULL, NULL, FALSE, curbuf); 4063 if (curtab != tp) 4064 return FAIL; 4065 } 4066 #if defined(FEAT_GUI) 4067 // Remove the scrollbars. They may be added back later. 4068 if (gui.in_use) 4069 gui_remove_scrollbars(); 4070 #endif 4071 tp->tp_curwin = curwin; 4072 tp->tp_prevwin = prevwin; 4073 tp->tp_firstwin = firstwin; 4074 tp->tp_lastwin = lastwin; 4075 tp->tp_old_Rows = Rows; 4076 tp->tp_old_Columns = Columns; 4077 firstwin = NULL; 4078 lastwin = NULL; 4079 return OK; 4080 } 4081 4082 /* 4083 * Start using tab page "tp". 4084 * Only to be used after leave_tabpage() or freeing the current tab page. 4085 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4086 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4087 */ 4088 static void 4089 enter_tabpage( 4090 tabpage_T *tp, 4091 buf_T *old_curbuf UNUSED, 4092 int trigger_enter_autocmds, 4093 int trigger_leave_autocmds) 4094 { 4095 int old_off = tp->tp_firstwin->w_winrow; 4096 win_T *next_prevwin = tp->tp_prevwin; 4097 4098 curtab = tp; 4099 firstwin = tp->tp_firstwin; 4100 lastwin = tp->tp_lastwin; 4101 topframe = tp->tp_topframe; 4102 4103 // We would like doing the TabEnter event first, but we don't have a 4104 // valid current window yet, which may break some commands. 4105 // This triggers autocommands, thus may make "tp" invalid. 4106 win_enter_ext(tp->tp_curwin, FALSE, TRUE, FALSE, 4107 trigger_enter_autocmds, trigger_leave_autocmds); 4108 prevwin = next_prevwin; 4109 4110 last_status(FALSE); // status line may appear or disappear 4111 (void)win_comp_pos(); // recompute w_winrow for all windows 4112 #ifdef FEAT_DIFF 4113 diff_need_scrollbind = TRUE; 4114 #endif 4115 4116 // The tabpage line may have appeared or disappeared, may need to resize 4117 // the frames for that. When the Vim window was resized need to update 4118 // frame sizes too. Use the stored value of p_ch, so that it can be 4119 // different for each tab page. 4120 if (p_ch != curtab->tp_ch_used) 4121 clear_cmdline = TRUE; 4122 p_ch = curtab->tp_ch_used; 4123 if (curtab->tp_old_Rows != Rows || (old_off != firstwin->w_winrow 4124 #ifdef FEAT_GUI_TABLINE 4125 && !gui_use_tabline() 4126 #endif 4127 )) 4128 shell_new_rows(); 4129 if (curtab->tp_old_Columns != Columns && starting == 0) 4130 shell_new_columns(); // update window widths 4131 4132 #if defined(FEAT_GUI) 4133 // When 'guioptions' includes 'L' or 'R' may have to remove or add 4134 // scrollbars. Have to update them anyway. 4135 gui_may_update_scrollbars(); 4136 #endif 4137 4138 // Apply autocommands after updating the display, when 'rows' and 4139 // 'columns' have been set correctly. 4140 if (trigger_enter_autocmds) 4141 { 4142 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 4143 if (old_curbuf != curbuf) 4144 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4145 } 4146 4147 redraw_all_later(NOT_VALID); 4148 } 4149 4150 /* 4151 * Go to tab page "n". For ":tab N" and "Ngt". 4152 * When "n" is 9999 go to the last tab page. 4153 */ 4154 void 4155 goto_tabpage(int n) 4156 { 4157 tabpage_T *tp = NULL; // shut up compiler 4158 tabpage_T *ttp; 4159 int i; 4160 4161 if (text_locked()) 4162 { 4163 // Not allowed when editing the command line. 4164 text_locked_msg(); 4165 return; 4166 } 4167 4168 // If there is only one it can't work. 4169 if (first_tabpage->tp_next == NULL) 4170 { 4171 if (n > 1) 4172 beep_flush(); 4173 return; 4174 } 4175 4176 if (n == 0) 4177 { 4178 // No count, go to next tab page, wrap around end. 4179 if (curtab->tp_next == NULL) 4180 tp = first_tabpage; 4181 else 4182 tp = curtab->tp_next; 4183 } 4184 else if (n < 0) 4185 { 4186 // "gT": go to previous tab page, wrap around end. "N gT" repeats 4187 // this N times. 4188 ttp = curtab; 4189 for (i = n; i < 0; ++i) 4190 { 4191 for (tp = first_tabpage; tp->tp_next != ttp && tp->tp_next != NULL; 4192 tp = tp->tp_next) 4193 ; 4194 ttp = tp; 4195 } 4196 } 4197 else if (n == 9999) 4198 { 4199 // Go to last tab page. 4200 for (tp = first_tabpage; tp->tp_next != NULL; tp = tp->tp_next) 4201 ; 4202 } 4203 else 4204 { 4205 // Go to tab page "n". 4206 tp = find_tabpage(n); 4207 if (tp == NULL) 4208 { 4209 beep_flush(); 4210 return; 4211 } 4212 } 4213 4214 goto_tabpage_tp(tp, TRUE, TRUE); 4215 4216 #ifdef FEAT_GUI_TABLINE 4217 if (gui_use_tabline()) 4218 gui_mch_set_curtab(tabpage_index(curtab)); 4219 #endif 4220 } 4221 4222 /* 4223 * Go to tabpage "tp". 4224 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4225 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4226 * Note: doesn't update the GUI tab. 4227 */ 4228 void 4229 goto_tabpage_tp( 4230 tabpage_T *tp, 4231 int trigger_enter_autocmds, 4232 int trigger_leave_autocmds) 4233 { 4234 // Don't repeat a message in another tab page. 4235 set_keep_msg(NULL, 0); 4236 4237 if (tp != curtab && leave_tabpage(tp->tp_curwin->w_buffer, 4238 trigger_leave_autocmds) == OK) 4239 { 4240 if (valid_tabpage(tp)) 4241 enter_tabpage(tp, curbuf, trigger_enter_autocmds, 4242 trigger_leave_autocmds); 4243 else 4244 enter_tabpage(curtab, curbuf, trigger_enter_autocmds, 4245 trigger_leave_autocmds); 4246 } 4247 } 4248 4249 /* 4250 * Enter window "wp" in tab page "tp". 4251 * Also updates the GUI tab. 4252 */ 4253 void 4254 goto_tabpage_win(tabpage_T *tp, win_T *wp) 4255 { 4256 goto_tabpage_tp(tp, TRUE, TRUE); 4257 if (curtab == tp && win_valid(wp)) 4258 { 4259 win_enter(wp, TRUE); 4260 # ifdef FEAT_GUI_TABLINE 4261 if (gui_use_tabline()) 4262 gui_mch_set_curtab(tabpage_index(curtab)); 4263 # endif 4264 } 4265 } 4266 4267 /* 4268 * Move the current tab page to after tab page "nr". 4269 */ 4270 void 4271 tabpage_move(int nr) 4272 { 4273 int n = 1; 4274 tabpage_T *tp, *tp_dst; 4275 4276 if (first_tabpage->tp_next == NULL) 4277 return; 4278 4279 for (tp = first_tabpage; tp->tp_next != NULL && n < nr; tp = tp->tp_next) 4280 ++n; 4281 4282 if (tp == curtab || (nr > 0 && tp->tp_next != NULL 4283 && tp->tp_next == curtab)) 4284 return; 4285 4286 tp_dst = tp; 4287 4288 // Remove the current tab page from the list of tab pages. 4289 if (curtab == first_tabpage) 4290 first_tabpage = curtab->tp_next; 4291 else 4292 { 4293 FOR_ALL_TABPAGES(tp) 4294 if (tp->tp_next == curtab) 4295 break; 4296 if (tp == NULL) // "cannot happen" 4297 return; 4298 tp->tp_next = curtab->tp_next; 4299 } 4300 4301 // Re-insert it at the specified position. 4302 if (nr <= 0) 4303 { 4304 curtab->tp_next = first_tabpage; 4305 first_tabpage = curtab; 4306 } 4307 else 4308 { 4309 curtab->tp_next = tp_dst->tp_next; 4310 tp_dst->tp_next = curtab; 4311 } 4312 4313 // Need to redraw the tabline. Tab page contents doesn't change. 4314 redraw_tabline = TRUE; 4315 } 4316 4317 4318 /* 4319 * Go to another window. 4320 * When jumping to another buffer, stop Visual mode. Do this before 4321 * changing windows so we can yank the selection into the '*' register. 4322 * When jumping to another window on the same buffer, adjust its cursor 4323 * position to keep the same Visual area. 4324 */ 4325 void 4326 win_goto(win_T *wp) 4327 { 4328 #ifdef FEAT_CONCEAL 4329 win_T *owp = curwin; 4330 #endif 4331 4332 if (ERROR_IF_POPUP_WINDOW) 4333 return; 4334 if (text_locked()) 4335 { 4336 beep_flush(); 4337 text_locked_msg(); 4338 return; 4339 } 4340 if (curbuf_locked()) 4341 return; 4342 4343 if (wp->w_buffer != curbuf) 4344 reset_VIsual_and_resel(); 4345 else if (VIsual_active) 4346 wp->w_cursor = curwin->w_cursor; 4347 4348 #ifdef FEAT_GUI 4349 need_mouse_correct = TRUE; 4350 #endif 4351 win_enter(wp, TRUE); 4352 4353 #ifdef FEAT_CONCEAL 4354 // Conceal cursor line in previous window, unconceal in current window. 4355 if (win_valid(owp) && owp->w_p_cole > 0 && !msg_scrolled) 4356 redrawWinline(owp, owp->w_cursor.lnum); 4357 if (curwin->w_p_cole > 0 && !msg_scrolled) 4358 need_cursor_line_redraw = TRUE; 4359 #endif 4360 } 4361 4362 #if defined(FEAT_PERL) || defined(PROTO) 4363 /* 4364 * Find window number "winnr" (counting top to bottom). 4365 */ 4366 win_T * 4367 win_find_nr(int winnr) 4368 { 4369 win_T *wp; 4370 4371 FOR_ALL_WINDOWS(wp) 4372 if (--winnr == 0) 4373 break; 4374 return wp; 4375 } 4376 #endif 4377 4378 #if ((defined(FEAT_PYTHON) || defined(FEAT_PYTHON3))) || defined(PROTO) 4379 /* 4380 * Find the tabpage for window "win". 4381 */ 4382 tabpage_T * 4383 win_find_tabpage(win_T *win) 4384 { 4385 win_T *wp; 4386 tabpage_T *tp; 4387 4388 FOR_ALL_TAB_WINDOWS(tp, wp) 4389 if (wp == win) 4390 return tp; 4391 return NULL; 4392 } 4393 #endif 4394 4395 /* 4396 * Get the above or below neighbor window of the specified window. 4397 * up - TRUE for the above neighbor 4398 * count - nth neighbor window 4399 * Returns the specified window if the neighbor is not found. 4400 */ 4401 win_T * 4402 win_vert_neighbor(tabpage_T *tp, win_T *wp, int up, long count) 4403 { 4404 frame_T *fr; 4405 frame_T *nfr; 4406 frame_T *foundfr; 4407 4408 foundfr = wp->w_frame; 4409 while (count--) 4410 { 4411 /* 4412 * First go upwards in the tree of frames until we find a upwards or 4413 * downwards neighbor. 4414 */ 4415 fr = foundfr; 4416 for (;;) 4417 { 4418 if (fr == tp->tp_topframe) 4419 goto end; 4420 if (up) 4421 nfr = fr->fr_prev; 4422 else 4423 nfr = fr->fr_next; 4424 if (fr->fr_parent->fr_layout == FR_COL && nfr != NULL) 4425 break; 4426 fr = fr->fr_parent; 4427 } 4428 4429 /* 4430 * Now go downwards to find the bottom or top frame in it. 4431 */ 4432 for (;;) 4433 { 4434 if (nfr->fr_layout == FR_LEAF) 4435 { 4436 foundfr = nfr; 4437 break; 4438 } 4439 fr = nfr->fr_child; 4440 if (nfr->fr_layout == FR_ROW) 4441 { 4442 // Find the frame at the cursor row. 4443 while (fr->fr_next != NULL 4444 && frame2win(fr)->w_wincol + fr->fr_width 4445 <= wp->w_wincol + wp->w_wcol) 4446 fr = fr->fr_next; 4447 } 4448 if (nfr->fr_layout == FR_COL && up) 4449 while (fr->fr_next != NULL) 4450 fr = fr->fr_next; 4451 nfr = fr; 4452 } 4453 } 4454 end: 4455 return foundfr != NULL ? foundfr->fr_win : NULL; 4456 } 4457 4458 /* 4459 * Move to window above or below "count" times. 4460 */ 4461 static void 4462 win_goto_ver( 4463 int up, // TRUE to go to win above 4464 long count) 4465 { 4466 win_T *win; 4467 4468 win = win_vert_neighbor(curtab, curwin, up, count); 4469 if (win != NULL) 4470 win_goto(win); 4471 } 4472 4473 /* 4474 * Get the left or right neighbor window of the specified window. 4475 * left - TRUE for the left neighbor 4476 * count - nth neighbor window 4477 * Returns the specified window if the neighbor is not found. 4478 */ 4479 win_T * 4480 win_horz_neighbor(tabpage_T *tp, win_T *wp, int left, long count) 4481 { 4482 frame_T *fr; 4483 frame_T *nfr; 4484 frame_T *foundfr; 4485 4486 foundfr = wp->w_frame; 4487 while (count--) 4488 { 4489 /* 4490 * First go upwards in the tree of frames until we find a left or 4491 * right neighbor. 4492 */ 4493 fr = foundfr; 4494 for (;;) 4495 { 4496 if (fr == tp->tp_topframe) 4497 goto end; 4498 if (left) 4499 nfr = fr->fr_prev; 4500 else 4501 nfr = fr->fr_next; 4502 if (fr->fr_parent->fr_layout == FR_ROW && nfr != NULL) 4503 break; 4504 fr = fr->fr_parent; 4505 } 4506 4507 /* 4508 * Now go downwards to find the leftmost or rightmost frame in it. 4509 */ 4510 for (;;) 4511 { 4512 if (nfr->fr_layout == FR_LEAF) 4513 { 4514 foundfr = nfr; 4515 break; 4516 } 4517 fr = nfr->fr_child; 4518 if (nfr->fr_layout == FR_COL) 4519 { 4520 // Find the frame at the cursor row. 4521 while (fr->fr_next != NULL 4522 && frame2win(fr)->w_winrow + fr->fr_height 4523 <= wp->w_winrow + wp->w_wrow) 4524 fr = fr->fr_next; 4525 } 4526 if (nfr->fr_layout == FR_ROW && left) 4527 while (fr->fr_next != NULL) 4528 fr = fr->fr_next; 4529 nfr = fr; 4530 } 4531 } 4532 end: 4533 return foundfr != NULL ? foundfr->fr_win : NULL; 4534 } 4535 4536 /* 4537 * Move to left or right window. 4538 */ 4539 static void 4540 win_goto_hor( 4541 int left, // TRUE to go to left win 4542 long count) 4543 { 4544 win_T *win; 4545 4546 win = win_horz_neighbor(curtab, curwin, left, count); 4547 if (win != NULL) 4548 win_goto(win); 4549 } 4550 4551 /* 4552 * Make window "wp" the current window. 4553 */ 4554 void 4555 win_enter(win_T *wp, int undo_sync) 4556 { 4557 win_enter_ext(wp, undo_sync, FALSE, FALSE, TRUE, TRUE); 4558 } 4559 4560 /* 4561 * Make window wp the current window. 4562 * Can be called with "curwin_invalid" TRUE, which means that curwin has just 4563 * been closed and isn't valid. 4564 */ 4565 static void 4566 win_enter_ext( 4567 win_T *wp, 4568 int undo_sync, 4569 int curwin_invalid, 4570 int trigger_new_autocmds, 4571 int trigger_enter_autocmds, 4572 int trigger_leave_autocmds) 4573 { 4574 int other_buffer = FALSE; 4575 4576 if (wp == curwin && !curwin_invalid) // nothing to do 4577 return; 4578 4579 #ifdef FEAT_JOB_CHANNEL 4580 if (!curwin_invalid) 4581 leaving_window(curwin); 4582 #endif 4583 4584 if (!curwin_invalid && trigger_leave_autocmds) 4585 { 4586 /* 4587 * Be careful: If autocommands delete the window, return now. 4588 */ 4589 if (wp->w_buffer != curbuf) 4590 { 4591 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4592 other_buffer = TRUE; 4593 if (!win_valid(wp)) 4594 return; 4595 } 4596 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4597 if (!win_valid(wp)) 4598 return; 4599 #ifdef FEAT_EVAL 4600 // autocmds may abort script processing 4601 if (aborting()) 4602 return; 4603 #endif 4604 } 4605 4606 // sync undo before leaving the current buffer 4607 if (undo_sync && curbuf != wp->w_buffer) 4608 u_sync(FALSE); 4609 4610 // Might need to scroll the old window before switching, e.g., when the 4611 // cursor was moved. 4612 update_topline(); 4613 4614 // may have to copy the buffer options when 'cpo' contains 'S' 4615 if (wp->w_buffer != curbuf) 4616 buf_copy_options(wp->w_buffer, BCO_ENTER | BCO_NOHELP); 4617 if (!curwin_invalid) 4618 { 4619 prevwin = curwin; // remember for CTRL-W p 4620 curwin->w_redr_status = TRUE; 4621 } 4622 curwin = wp; 4623 curbuf = wp->w_buffer; 4624 check_cursor(); 4625 if (!virtual_active()) 4626 curwin->w_cursor.coladd = 0; 4627 changed_line_abv_curs(); // assume cursor position needs updating 4628 4629 if (curwin->w_localdir != NULL || curtab->tp_localdir != NULL) 4630 { 4631 char_u *dirname; 4632 4633 // Window or tab has a local directory: Save current directory as 4634 // global directory (unless that was done already) and change to the 4635 // local directory. 4636 if (globaldir == NULL) 4637 { 4638 char_u cwd[MAXPATHL]; 4639 4640 if (mch_dirname(cwd, MAXPATHL) == OK) 4641 globaldir = vim_strsave(cwd); 4642 } 4643 if (curwin->w_localdir != NULL) 4644 dirname = curwin->w_localdir; 4645 else 4646 dirname = curtab->tp_localdir; 4647 4648 if (mch_chdir((char *)dirname) == 0) 4649 shorten_fnames(TRUE); 4650 } 4651 else if (globaldir != NULL) 4652 { 4653 // Window doesn't have a local directory and we are not in the global 4654 // directory: Change to the global directory. 4655 vim_ignored = mch_chdir((char *)globaldir); 4656 VIM_CLEAR(globaldir); 4657 shorten_fnames(TRUE); 4658 } 4659 4660 #ifdef FEAT_JOB_CHANNEL 4661 entering_window(curwin); 4662 #endif 4663 // Careful: autocommands may close the window and make "wp" invalid 4664 if (trigger_new_autocmds) 4665 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 4666 if (trigger_enter_autocmds) 4667 { 4668 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 4669 if (other_buffer) 4670 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4671 } 4672 4673 #ifdef FEAT_TITLE 4674 maketitle(); 4675 #endif 4676 curwin->w_redr_status = TRUE; 4677 #ifdef FEAT_TERMINAL 4678 if (bt_terminal(curwin->w_buffer)) 4679 // terminal is likely in another mode 4680 redraw_mode = TRUE; 4681 #endif 4682 redraw_tabline = TRUE; 4683 if (restart_edit) 4684 redraw_later(VALID); // causes status line redraw 4685 4686 // set window height to desired minimal value 4687 if (curwin->w_height < p_wh && !curwin->w_p_wfh 4688 #ifdef FEAT_PROP_POPUP 4689 && !popup_is_popup(curwin) 4690 #endif 4691 ) 4692 win_setheight((int)p_wh); 4693 else if (curwin->w_height == 0) 4694 win_setheight(1); 4695 4696 // set window width to desired minimal value 4697 if (curwin->w_width < p_wiw && !curwin->w_p_wfw) 4698 win_setwidth((int)p_wiw); 4699 4700 setmouse(); // in case jumped to/from help buffer 4701 4702 // Change directories when the 'acd' option is set. 4703 DO_AUTOCHDIR; 4704 } 4705 4706 4707 /* 4708 * Jump to the first open window that contains buffer "buf", if one exists. 4709 * Returns a pointer to the window found, otherwise NULL. 4710 */ 4711 win_T * 4712 buf_jump_open_win(buf_T *buf) 4713 { 4714 win_T *wp = NULL; 4715 4716 if (curwin->w_buffer == buf) 4717 wp = curwin; 4718 else 4719 FOR_ALL_WINDOWS(wp) 4720 if (wp->w_buffer == buf) 4721 break; 4722 if (wp != NULL) 4723 win_enter(wp, FALSE); 4724 return wp; 4725 } 4726 4727 /* 4728 * Jump to the first open window in any tab page that contains buffer "buf", 4729 * if one exists. 4730 * Returns a pointer to the window found, otherwise NULL. 4731 */ 4732 win_T * 4733 buf_jump_open_tab(buf_T *buf) 4734 { 4735 win_T *wp = buf_jump_open_win(buf); 4736 tabpage_T *tp; 4737 4738 if (wp != NULL) 4739 return wp; 4740 4741 FOR_ALL_TABPAGES(tp) 4742 if (tp != curtab) 4743 { 4744 for (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next) 4745 if (wp->w_buffer == buf) 4746 break; 4747 if (wp != NULL) 4748 { 4749 goto_tabpage_win(tp, wp); 4750 if (curwin != wp) 4751 wp = NULL; // something went wrong 4752 break; 4753 } 4754 } 4755 return wp; 4756 } 4757 4758 static int last_win_id = LOWEST_WIN_ID - 1; 4759 4760 /* 4761 * Allocate a window structure and link it in the window list when "hidden" is 4762 * FALSE. 4763 */ 4764 static win_T * 4765 win_alloc(win_T *after UNUSED, int hidden UNUSED) 4766 { 4767 win_T *new_wp; 4768 4769 /* 4770 * allocate window structure and linesizes arrays 4771 */ 4772 new_wp = ALLOC_CLEAR_ONE(win_T); 4773 if (new_wp == NULL) 4774 return NULL; 4775 4776 if (win_alloc_lines(new_wp) == FAIL) 4777 { 4778 vim_free(new_wp); 4779 return NULL; 4780 } 4781 4782 new_wp->w_id = ++last_win_id; 4783 4784 #ifdef FEAT_EVAL 4785 // init w: variables 4786 new_wp->w_vars = dict_alloc(); 4787 if (new_wp->w_vars == NULL) 4788 { 4789 win_free_lsize(new_wp); 4790 vim_free(new_wp); 4791 return NULL; 4792 } 4793 init_var_dict(new_wp->w_vars, &new_wp->w_winvar, VAR_SCOPE); 4794 #endif 4795 4796 // Don't execute autocommands while the window is not properly 4797 // initialized yet. gui_create_scrollbar() may trigger a FocusGained 4798 // event. 4799 block_autocmds(); 4800 4801 /* 4802 * link the window in the window list 4803 */ 4804 if (!hidden) 4805 win_append(after, new_wp); 4806 new_wp->w_wincol = 0; 4807 new_wp->w_width = Columns; 4808 4809 // position the display and the cursor at the top of the file. 4810 new_wp->w_topline = 1; 4811 #ifdef FEAT_DIFF 4812 new_wp->w_topfill = 0; 4813 #endif 4814 new_wp->w_botline = 2; 4815 new_wp->w_cursor.lnum = 1; 4816 new_wp->w_scbind_pos = 1; 4817 4818 // use global option value for global-local options 4819 new_wp->w_p_so = -1; 4820 new_wp->w_p_siso = -1; 4821 4822 // We won't calculate w_fraction until resizing the window 4823 new_wp->w_fraction = 0; 4824 new_wp->w_prev_fraction_row = -1; 4825 4826 #ifdef FEAT_GUI 4827 if (gui.in_use) 4828 { 4829 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_LEFT], 4830 SBAR_LEFT, new_wp); 4831 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_RIGHT], 4832 SBAR_RIGHT, new_wp); 4833 } 4834 #endif 4835 #ifdef FEAT_FOLDING 4836 foldInitWin(new_wp); 4837 #endif 4838 unblock_autocmds(); 4839 #ifdef FEAT_SEARCH_EXTRA 4840 new_wp->w_match_head = NULL; 4841 new_wp->w_next_match_id = 4; 4842 #endif 4843 return new_wp; 4844 } 4845 4846 /* 4847 * Remove window 'wp' from the window list and free the structure. 4848 */ 4849 static void 4850 win_free( 4851 win_T *wp, 4852 tabpage_T *tp) // tab page "win" is in, NULL for current 4853 { 4854 int i; 4855 buf_T *buf; 4856 wininfo_T *wip; 4857 4858 #ifdef FEAT_FOLDING 4859 clearFolding(wp); 4860 #endif 4861 4862 // reduce the reference count to the argument list. 4863 alist_unlink(wp->w_alist); 4864 4865 // Don't execute autocommands while the window is halfway being deleted. 4866 // gui_mch_destroy_scrollbar() may trigger a FocusGained event. 4867 block_autocmds(); 4868 4869 #ifdef FEAT_LUA 4870 lua_window_free(wp); 4871 #endif 4872 4873 #ifdef FEAT_MZSCHEME 4874 mzscheme_window_free(wp); 4875 #endif 4876 4877 #ifdef FEAT_PERL 4878 perl_win_free(wp); 4879 #endif 4880 4881 #ifdef FEAT_PYTHON 4882 python_window_free(wp); 4883 #endif 4884 4885 #ifdef FEAT_PYTHON3 4886 python3_window_free(wp); 4887 #endif 4888 4889 #ifdef FEAT_TCL 4890 tcl_window_free(wp); 4891 #endif 4892 4893 #ifdef FEAT_RUBY 4894 ruby_window_free(wp); 4895 #endif 4896 4897 clear_winopt(&wp->w_onebuf_opt); 4898 clear_winopt(&wp->w_allbuf_opt); 4899 4900 #ifdef FEAT_EVAL 4901 vars_clear(&wp->w_vars->dv_hashtab); // free all w: variables 4902 hash_init(&wp->w_vars->dv_hashtab); 4903 unref_var_dict(wp->w_vars); 4904 #endif 4905 4906 { 4907 tabpage_T *ttp; 4908 4909 if (prevwin == wp) 4910 prevwin = NULL; 4911 FOR_ALL_TABPAGES(ttp) 4912 if (ttp->tp_prevwin == wp) 4913 ttp->tp_prevwin = NULL; 4914 } 4915 win_free_lsize(wp); 4916 4917 for (i = 0; i < wp->w_tagstacklen; ++i) 4918 { 4919 vim_free(wp->w_tagstack[i].tagname); 4920 vim_free(wp->w_tagstack[i].user_data); 4921 } 4922 vim_free(wp->w_localdir); 4923 4924 // Remove the window from the b_wininfo lists, it may happen that the 4925 // freed memory is re-used for another window. 4926 FOR_ALL_BUFFERS(buf) 4927 for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) 4928 if (wip->wi_win == wp) 4929 wip->wi_win = NULL; 4930 4931 #ifdef FEAT_SEARCH_EXTRA 4932 clear_matches(wp); 4933 #endif 4934 4935 #ifdef FEAT_JUMPLIST 4936 free_jumplist(wp); 4937 #endif 4938 4939 #ifdef FEAT_QUICKFIX 4940 qf_free_all(wp); 4941 #endif 4942 4943 #ifdef FEAT_GUI 4944 if (gui.in_use) 4945 { 4946 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_LEFT]); 4947 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_RIGHT]); 4948 } 4949 #endif // FEAT_GUI 4950 4951 #ifdef FEAT_MENU 4952 remove_winbar(wp); 4953 #endif 4954 #ifdef FEAT_PROP_POPUP 4955 free_callback(&wp->w_close_cb); 4956 free_callback(&wp->w_filter_cb); 4957 for (i = 0; i < 4; ++i) 4958 VIM_CLEAR(wp->w_border_highlight[i]); 4959 vim_free(wp->w_scrollbar_highlight); 4960 vim_free(wp->w_thumb_highlight); 4961 vim_free(wp->w_popup_title); 4962 list_unref(wp->w_popup_mask); 4963 vim_free(wp->w_popup_mask_cells); 4964 #endif 4965 4966 #ifdef FEAT_SYN_HL 4967 vim_free(wp->w_p_cc_cols); 4968 #endif 4969 4970 if (win_valid_any_tab(wp)) 4971 win_remove(wp, tp); 4972 if (autocmd_busy) 4973 { 4974 wp->w_next = au_pending_free_win; 4975 au_pending_free_win = wp; 4976 } 4977 else 4978 vim_free(wp); 4979 4980 unblock_autocmds(); 4981 } 4982 4983 /* 4984 * Return TRUE if "wp" is not in the list of windows: the autocmd window or a 4985 * popup window. 4986 */ 4987 static int 4988 win_unlisted(win_T *wp) 4989 { 4990 return wp == aucmd_win || WIN_IS_POPUP(wp); 4991 } 4992 4993 #if defined(FEAT_PROP_POPUP) || defined(PROTO) 4994 /* 4995 * Free a popup window. This does not take the window out of the window list 4996 * and assumes there is only one toplevel frame, no split. 4997 */ 4998 void 4999 win_free_popup(win_T *win) 5000 { 5001 if (bt_popup(win->w_buffer)) 5002 win_close_buffer(win, DOBUF_WIPE_REUSE, FALSE); 5003 else 5004 close_buffer(win, win->w_buffer, 0, FALSE); 5005 # if defined(FEAT_TIMERS) 5006 if (win->w_popup_timer != NULL) 5007 stop_timer(win->w_popup_timer); 5008 # endif 5009 vim_free(win->w_frame); 5010 win_free(win, NULL); 5011 } 5012 #endif 5013 5014 /* 5015 * Append window "wp" in the window list after window "after". 5016 */ 5017 static void 5018 win_append(win_T *after, win_T *wp) 5019 { 5020 win_T *before; 5021 5022 if (after == NULL) // after NULL is in front of the first 5023 before = firstwin; 5024 else 5025 before = after->w_next; 5026 5027 wp->w_next = before; 5028 wp->w_prev = after; 5029 if (after == NULL) 5030 firstwin = wp; 5031 else 5032 after->w_next = wp; 5033 if (before == NULL) 5034 lastwin = wp; 5035 else 5036 before->w_prev = wp; 5037 } 5038 5039 /* 5040 * Remove a window from the window list. 5041 */ 5042 void 5043 win_remove( 5044 win_T *wp, 5045 tabpage_T *tp) // tab page "win" is in, NULL for current 5046 { 5047 if (wp->w_prev != NULL) 5048 wp->w_prev->w_next = wp->w_next; 5049 else if (tp == NULL) 5050 firstwin = curtab->tp_firstwin = wp->w_next; 5051 else 5052 tp->tp_firstwin = wp->w_next; 5053 5054 if (wp->w_next != NULL) 5055 wp->w_next->w_prev = wp->w_prev; 5056 else if (tp == NULL) 5057 lastwin = curtab->tp_lastwin = wp->w_prev; 5058 else 5059 tp->tp_lastwin = wp->w_prev; 5060 } 5061 5062 /* 5063 * Append frame "frp" in a frame list after frame "after". 5064 */ 5065 static void 5066 frame_append(frame_T *after, frame_T *frp) 5067 { 5068 frp->fr_next = after->fr_next; 5069 after->fr_next = frp; 5070 if (frp->fr_next != NULL) 5071 frp->fr_next->fr_prev = frp; 5072 frp->fr_prev = after; 5073 } 5074 5075 /* 5076 * Insert frame "frp" in a frame list before frame "before". 5077 */ 5078 static void 5079 frame_insert(frame_T *before, frame_T *frp) 5080 { 5081 frp->fr_next = before; 5082 frp->fr_prev = before->fr_prev; 5083 before->fr_prev = frp; 5084 if (frp->fr_prev != NULL) 5085 frp->fr_prev->fr_next = frp; 5086 else 5087 frp->fr_parent->fr_child = frp; 5088 } 5089 5090 /* 5091 * Remove a frame from a frame list. 5092 */ 5093 static void 5094 frame_remove(frame_T *frp) 5095 { 5096 if (frp->fr_prev != NULL) 5097 frp->fr_prev->fr_next = frp->fr_next; 5098 else 5099 { 5100 frp->fr_parent->fr_child = frp->fr_next; 5101 // special case: topframe->fr_child == frp 5102 if (topframe->fr_child == frp) 5103 topframe->fr_child = frp->fr_next; 5104 } 5105 if (frp->fr_next != NULL) 5106 frp->fr_next->fr_prev = frp->fr_prev; 5107 } 5108 5109 /* 5110 * Allocate w_lines[] for window "wp". 5111 * Return FAIL for failure, OK for success. 5112 */ 5113 int 5114 win_alloc_lines(win_T *wp) 5115 { 5116 wp->w_lines_valid = 0; 5117 wp->w_lines = ALLOC_CLEAR_MULT(wline_T, Rows ); 5118 if (wp->w_lines == NULL) 5119 return FAIL; 5120 return OK; 5121 } 5122 5123 /* 5124 * free lsize arrays for a window 5125 */ 5126 void 5127 win_free_lsize(win_T *wp) 5128 { 5129 // TODO: why would wp be NULL here? 5130 if (wp != NULL) 5131 VIM_CLEAR(wp->w_lines); 5132 } 5133 5134 /* 5135 * Called from win_new_shellsize() after Rows changed. 5136 * This only does the current tab page, others must be done when made active. 5137 */ 5138 void 5139 shell_new_rows(void) 5140 { 5141 int h = (int)ROWS_AVAIL; 5142 5143 if (firstwin == NULL) // not initialized yet 5144 return; 5145 if (h < frame_minheight(topframe, NULL)) 5146 h = frame_minheight(topframe, NULL); 5147 5148 // First try setting the heights of windows with 'winfixheight'. If 5149 // that doesn't result in the right height, forget about that option. 5150 frame_new_height(topframe, h, FALSE, TRUE); 5151 if (!frame_check_height(topframe, h)) 5152 frame_new_height(topframe, h, FALSE, FALSE); 5153 5154 (void)win_comp_pos(); // recompute w_winrow and w_wincol 5155 compute_cmdrow(); 5156 curtab->tp_ch_used = p_ch; 5157 5158 #if 0 5159 // Disabled: don't want making the screen smaller make a window larger. 5160 if (p_ea) 5161 win_equal(curwin, FALSE, 'v'); 5162 #endif 5163 } 5164 5165 /* 5166 * Called from win_new_shellsize() after Columns changed. 5167 */ 5168 void 5169 shell_new_columns(void) 5170 { 5171 if (firstwin == NULL) // not initialized yet 5172 return; 5173 5174 // First try setting the widths of windows with 'winfixwidth'. If that 5175 // doesn't result in the right width, forget about that option. 5176 frame_new_width(topframe, (int)Columns, FALSE, TRUE); 5177 if (!frame_check_width(topframe, Columns)) 5178 frame_new_width(topframe, (int)Columns, FALSE, FALSE); 5179 5180 (void)win_comp_pos(); // recompute w_winrow and w_wincol 5181 #if 0 5182 // Disabled: don't want making the screen smaller make a window larger. 5183 if (p_ea) 5184 win_equal(curwin, FALSE, 'h'); 5185 #endif 5186 } 5187 5188 #if defined(FEAT_CMDWIN) || defined(PROTO) 5189 /* 5190 * Save the size of all windows in "gap". 5191 */ 5192 void 5193 win_size_save(garray_T *gap) 5194 5195 { 5196 win_T *wp; 5197 5198 ga_init2(gap, (int)sizeof(int), 1); 5199 if (ga_grow(gap, win_count() * 2 + 1) == OK) 5200 { 5201 // first entry is value of 'lines' 5202 ((int *)gap->ga_data)[gap->ga_len++] = Rows; 5203 5204 FOR_ALL_WINDOWS(wp) 5205 { 5206 ((int *)gap->ga_data)[gap->ga_len++] = 5207 wp->w_width + wp->w_vsep_width; 5208 ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height; 5209 } 5210 } 5211 } 5212 5213 /* 5214 * Restore window sizes, but only if the number of windows is still the same 5215 * and 'lines' didn't change. 5216 * Does not free the growarray. 5217 */ 5218 void 5219 win_size_restore(garray_T *gap) 5220 { 5221 win_T *wp; 5222 int i, j; 5223 5224 if (win_count() * 2 + 1 == gap->ga_len 5225 && ((int *)gap->ga_data)[0] == Rows) 5226 { 5227 // The order matters, because frames contain other frames, but it's 5228 // difficult to get right. The easy way out is to do it twice. 5229 for (j = 0; j < 2; ++j) 5230 { 5231 i = 1; 5232 FOR_ALL_WINDOWS(wp) 5233 { 5234 frame_setwidth(wp->w_frame, ((int *)gap->ga_data)[i++]); 5235 win_setheight_win(((int *)gap->ga_data)[i++], wp); 5236 } 5237 } 5238 // recompute the window positions 5239 (void)win_comp_pos(); 5240 } 5241 } 5242 #endif // FEAT_CMDWIN 5243 5244 /* 5245 * Update the position for all windows, using the width and height of the 5246 * frames. 5247 * Returns the row just after the last window. 5248 */ 5249 int 5250 win_comp_pos(void) 5251 { 5252 int row = tabline_height(); 5253 int col = 0; 5254 5255 frame_comp_pos(topframe, &row, &col); 5256 return row; 5257 } 5258 5259 /* 5260 * Update the position of the windows in frame "topfrp", using the width and 5261 * height of the frames. 5262 * "*row" and "*col" are the top-left position of the frame. They are updated 5263 * to the bottom-right position plus one. 5264 */ 5265 static void 5266 frame_comp_pos(frame_T *topfrp, int *row, int *col) 5267 { 5268 win_T *wp; 5269 frame_T *frp; 5270 int startcol; 5271 int startrow; 5272 int h; 5273 5274 wp = topfrp->fr_win; 5275 if (wp != NULL) 5276 { 5277 if (wp->w_winrow != *row || wp->w_wincol != *col) 5278 { 5279 // position changed, redraw 5280 wp->w_winrow = *row; 5281 wp->w_wincol = *col; 5282 redraw_win_later(wp, NOT_VALID); 5283 wp->w_redr_status = TRUE; 5284 } 5285 // WinBar will not show if the window height is zero 5286 h = VISIBLE_HEIGHT(wp) + wp->w_status_height; 5287 *row += h > topfrp->fr_height ? topfrp->fr_height : h; 5288 *col += wp->w_width + wp->w_vsep_width; 5289 } 5290 else 5291 { 5292 startrow = *row; 5293 startcol = *col; 5294 FOR_ALL_FRAMES(frp, topfrp->fr_child) 5295 { 5296 if (topfrp->fr_layout == FR_ROW) 5297 *row = startrow; // all frames are at the same row 5298 else 5299 *col = startcol; // all frames are at the same col 5300 frame_comp_pos(frp, row, col); 5301 } 5302 } 5303 } 5304 5305 /* 5306 * Set current window height and take care of repositioning other windows to 5307 * fit around it. 5308 */ 5309 void 5310 win_setheight(int height) 5311 { 5312 win_setheight_win(height, curwin); 5313 } 5314 5315 /* 5316 * Set the window height of window "win" and take care of repositioning other 5317 * windows to fit around it. 5318 */ 5319 void 5320 win_setheight_win(int height, win_T *win) 5321 { 5322 int row; 5323 5324 if (win == curwin) 5325 { 5326 // Always keep current window at least one line high, even when 5327 // 'winminheight' is zero. 5328 if (height < p_wmh) 5329 height = p_wmh; 5330 if (height == 0) 5331 height = 1; 5332 height += WINBAR_HEIGHT(curwin); 5333 } 5334 5335 frame_setheight(win->w_frame, height + win->w_status_height); 5336 5337 // recompute the window positions 5338 row = win_comp_pos(); 5339 5340 /* 5341 * If there is extra space created between the last window and the command 5342 * line, clear it. 5343 */ 5344 if (full_screen && msg_scrolled == 0 && row < cmdline_row) 5345 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5346 cmdline_row = row; 5347 msg_row = row; 5348 msg_col = 0; 5349 5350 redraw_all_later(NOT_VALID); 5351 } 5352 5353 /* 5354 * Set the height of a frame to "height" and take care that all frames and 5355 * windows inside it are resized. Also resize frames on the left and right if 5356 * the are in the same FR_ROW frame. 5357 * 5358 * Strategy: 5359 * If the frame is part of a FR_COL frame, try fitting the frame in that 5360 * frame. If that doesn't work (the FR_COL frame is too small), recursively 5361 * go to containing frames to resize them and make room. 5362 * If the frame is part of a FR_ROW frame, all frames must be resized as well. 5363 * Check for the minimal height of the FR_ROW frame. 5364 * At the top level we can also use change the command line height. 5365 */ 5366 static void 5367 frame_setheight(frame_T *curfrp, int height) 5368 { 5369 int room; // total number of lines available 5370 int take; // number of lines taken from other windows 5371 int room_cmdline; // lines available from cmdline 5372 int run; 5373 frame_T *frp; 5374 int h; 5375 int room_reserved; 5376 5377 // If the height already is the desired value, nothing to do. 5378 if (curfrp->fr_height == height) 5379 return; 5380 5381 if (curfrp->fr_parent == NULL) 5382 { 5383 // topframe: can only change the command line 5384 if (height > ROWS_AVAIL) 5385 height = ROWS_AVAIL; 5386 if (height > 0) 5387 frame_new_height(curfrp, height, FALSE, FALSE); 5388 } 5389 else if (curfrp->fr_parent->fr_layout == FR_ROW) 5390 { 5391 // Row of frames: Also need to resize frames left and right of this 5392 // one. First check for the minimal height of these. 5393 h = frame_minheight(curfrp->fr_parent, NULL); 5394 if (height < h) 5395 height = h; 5396 frame_setheight(curfrp->fr_parent, height); 5397 } 5398 else 5399 { 5400 /* 5401 * Column of frames: try to change only frames in this column. 5402 */ 5403 /* 5404 * Do this twice: 5405 * 1: compute room available, if it's not enough try resizing the 5406 * containing frame. 5407 * 2: compute the room available and adjust the height to it. 5408 * Try not to reduce the height of a window with 'winfixheight' set. 5409 */ 5410 for (run = 1; run <= 2; ++run) 5411 { 5412 room = 0; 5413 room_reserved = 0; 5414 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5415 { 5416 if (frp != curfrp 5417 && frp->fr_win != NULL 5418 && frp->fr_win->w_p_wfh) 5419 room_reserved += frp->fr_height; 5420 room += frp->fr_height; 5421 if (frp != curfrp) 5422 room -= frame_minheight(frp, NULL); 5423 } 5424 if (curfrp->fr_width != Columns) 5425 room_cmdline = 0; 5426 else 5427 { 5428 room_cmdline = Rows - p_ch - (lastwin->w_winrow 5429 + VISIBLE_HEIGHT(lastwin) 5430 + lastwin->w_status_height); 5431 if (room_cmdline < 0) 5432 room_cmdline = 0; 5433 } 5434 5435 if (height <= room + room_cmdline) 5436 break; 5437 if (run == 2 || curfrp->fr_width == Columns) 5438 { 5439 if (height > room + room_cmdline) 5440 height = room + room_cmdline; 5441 break; 5442 } 5443 frame_setheight(curfrp->fr_parent, height 5444 + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1); 5445 } 5446 5447 /* 5448 * Compute the number of lines we will take from others frames (can be 5449 * negative!). 5450 */ 5451 take = height - curfrp->fr_height; 5452 5453 // If there is not enough room, also reduce the height of a window 5454 // with 'winfixheight' set. 5455 if (height > room + room_cmdline - room_reserved) 5456 room_reserved = room + room_cmdline - height; 5457 // If there is only a 'winfixheight' window and making the 5458 // window smaller, need to make the other window taller. 5459 if (take < 0 && room - curfrp->fr_height < room_reserved) 5460 room_reserved = 0; 5461 5462 if (take > 0 && room_cmdline > 0) 5463 { 5464 // use lines from cmdline first 5465 if (take < room_cmdline) 5466 room_cmdline = take; 5467 take -= room_cmdline; 5468 topframe->fr_height += room_cmdline; 5469 } 5470 5471 /* 5472 * set the current frame to the new height 5473 */ 5474 frame_new_height(curfrp, height, FALSE, FALSE); 5475 5476 /* 5477 * First take lines from the frames after the current frame. If 5478 * that is not enough, takes lines from frames above the current 5479 * frame. 5480 */ 5481 for (run = 0; run < 2; ++run) 5482 { 5483 if (run == 0) 5484 frp = curfrp->fr_next; // 1st run: start with next window 5485 else 5486 frp = curfrp->fr_prev; // 2nd run: start with prev window 5487 while (frp != NULL && take != 0) 5488 { 5489 h = frame_minheight(frp, NULL); 5490 if (room_reserved > 0 5491 && frp->fr_win != NULL 5492 && frp->fr_win->w_p_wfh) 5493 { 5494 if (room_reserved >= frp->fr_height) 5495 room_reserved -= frp->fr_height; 5496 else 5497 { 5498 if (frp->fr_height - room_reserved > take) 5499 room_reserved = frp->fr_height - take; 5500 take -= frp->fr_height - room_reserved; 5501 frame_new_height(frp, room_reserved, FALSE, FALSE); 5502 room_reserved = 0; 5503 } 5504 } 5505 else 5506 { 5507 if (frp->fr_height - take < h) 5508 { 5509 take -= frp->fr_height - h; 5510 frame_new_height(frp, h, FALSE, FALSE); 5511 } 5512 else 5513 { 5514 frame_new_height(frp, frp->fr_height - take, 5515 FALSE, FALSE); 5516 take = 0; 5517 } 5518 } 5519 if (run == 0) 5520 frp = frp->fr_next; 5521 else 5522 frp = frp->fr_prev; 5523 } 5524 } 5525 } 5526 } 5527 5528 /* 5529 * Set current window width and take care of repositioning other windows to 5530 * fit around it. 5531 */ 5532 void 5533 win_setwidth(int width) 5534 { 5535 win_setwidth_win(width, curwin); 5536 } 5537 5538 void 5539 win_setwidth_win(int width, win_T *wp) 5540 { 5541 // Always keep current window at least one column wide, even when 5542 // 'winminwidth' is zero. 5543 if (wp == curwin) 5544 { 5545 if (width < p_wmw) 5546 width = p_wmw; 5547 if (width == 0) 5548 width = 1; 5549 } 5550 5551 frame_setwidth(wp->w_frame, width + wp->w_vsep_width); 5552 5553 // recompute the window positions 5554 (void)win_comp_pos(); 5555 5556 redraw_all_later(NOT_VALID); 5557 } 5558 5559 /* 5560 * Set the width of a frame to "width" and take care that all frames and 5561 * windows inside it are resized. Also resize frames above and below if the 5562 * are in the same FR_ROW frame. 5563 * 5564 * Strategy is similar to frame_setheight(). 5565 */ 5566 static void 5567 frame_setwidth(frame_T *curfrp, int width) 5568 { 5569 int room; // total number of lines available 5570 int take; // number of lines taken from other windows 5571 int run; 5572 frame_T *frp; 5573 int w; 5574 int room_reserved; 5575 5576 // If the width already is the desired value, nothing to do. 5577 if (curfrp->fr_width == width) 5578 return; 5579 5580 if (curfrp->fr_parent == NULL) 5581 // topframe: can't change width 5582 return; 5583 5584 if (curfrp->fr_parent->fr_layout == FR_COL) 5585 { 5586 // Column of frames: Also need to resize frames above and below of 5587 // this one. First check for the minimal width of these. 5588 w = frame_minwidth(curfrp->fr_parent, NULL); 5589 if (width < w) 5590 width = w; 5591 frame_setwidth(curfrp->fr_parent, width); 5592 } 5593 else 5594 { 5595 /* 5596 * Row of frames: try to change only frames in this row. 5597 * 5598 * Do this twice: 5599 * 1: compute room available, if it's not enough try resizing the 5600 * containing frame. 5601 * 2: compute the room available and adjust the width to it. 5602 */ 5603 for (run = 1; run <= 2; ++run) 5604 { 5605 room = 0; 5606 room_reserved = 0; 5607 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5608 { 5609 if (frp != curfrp 5610 && frp->fr_win != NULL 5611 && frp->fr_win->w_p_wfw) 5612 room_reserved += frp->fr_width; 5613 room += frp->fr_width; 5614 if (frp != curfrp) 5615 room -= frame_minwidth(frp, NULL); 5616 } 5617 5618 if (width <= room) 5619 break; 5620 if (run == 2 || curfrp->fr_height >= ROWS_AVAIL) 5621 { 5622 if (width > room) 5623 width = room; 5624 break; 5625 } 5626 frame_setwidth(curfrp->fr_parent, width 5627 + frame_minwidth(curfrp->fr_parent, NOWIN) - (int)p_wmw - 1); 5628 } 5629 5630 /* 5631 * Compute the number of lines we will take from others frames (can be 5632 * negative!). 5633 */ 5634 take = width - curfrp->fr_width; 5635 5636 // If there is not enough room, also reduce the width of a window 5637 // with 'winfixwidth' set. 5638 if (width > room - room_reserved) 5639 room_reserved = room - width; 5640 // If there is only a 'winfixwidth' window and making the 5641 // window smaller, need to make the other window narrower. 5642 if (take < 0 && room - curfrp->fr_width < room_reserved) 5643 room_reserved = 0; 5644 5645 /* 5646 * set the current frame to the new width 5647 */ 5648 frame_new_width(curfrp, width, FALSE, FALSE); 5649 5650 /* 5651 * First take lines from the frames right of the current frame. If 5652 * that is not enough, takes lines from frames left of the current 5653 * frame. 5654 */ 5655 for (run = 0; run < 2; ++run) 5656 { 5657 if (run == 0) 5658 frp = curfrp->fr_next; // 1st run: start with next window 5659 else 5660 frp = curfrp->fr_prev; // 2nd run: start with prev window 5661 while (frp != NULL && take != 0) 5662 { 5663 w = frame_minwidth(frp, NULL); 5664 if (room_reserved > 0 5665 && frp->fr_win != NULL 5666 && frp->fr_win->w_p_wfw) 5667 { 5668 if (room_reserved >= frp->fr_width) 5669 room_reserved -= frp->fr_width; 5670 else 5671 { 5672 if (frp->fr_width - room_reserved > take) 5673 room_reserved = frp->fr_width - take; 5674 take -= frp->fr_width - room_reserved; 5675 frame_new_width(frp, room_reserved, FALSE, FALSE); 5676 room_reserved = 0; 5677 } 5678 } 5679 else 5680 { 5681 if (frp->fr_width - take < w) 5682 { 5683 take -= frp->fr_width - w; 5684 frame_new_width(frp, w, FALSE, FALSE); 5685 } 5686 else 5687 { 5688 frame_new_width(frp, frp->fr_width - take, 5689 FALSE, FALSE); 5690 take = 0; 5691 } 5692 } 5693 if (run == 0) 5694 frp = frp->fr_next; 5695 else 5696 frp = frp->fr_prev; 5697 } 5698 } 5699 } 5700 } 5701 5702 /* 5703 * Check 'winminheight' for a valid value and reduce it if needed. 5704 */ 5705 void 5706 win_setminheight(void) 5707 { 5708 int room; 5709 int needed; 5710 int first = TRUE; 5711 5712 // loop until there is a 'winminheight' that is possible 5713 while (p_wmh > 0) 5714 { 5715 room = Rows - p_ch; 5716 needed = frame_minheight(topframe, NULL); 5717 if (room >= needed) 5718 break; 5719 --p_wmh; 5720 if (first) 5721 { 5722 emsg(_(e_noroom)); 5723 first = FALSE; 5724 } 5725 } 5726 } 5727 5728 /* 5729 * Check 'winminwidth' for a valid value and reduce it if needed. 5730 */ 5731 void 5732 win_setminwidth(void) 5733 { 5734 int room; 5735 int needed; 5736 int first = TRUE; 5737 5738 // loop until there is a 'winminheight' that is possible 5739 while (p_wmw > 0) 5740 { 5741 room = Columns; 5742 needed = frame_minwidth(topframe, NULL); 5743 if (room >= needed) 5744 break; 5745 --p_wmw; 5746 if (first) 5747 { 5748 emsg(_(e_noroom)); 5749 first = FALSE; 5750 } 5751 } 5752 } 5753 5754 /* 5755 * Status line of dragwin is dragged "offset" lines down (negative is up). 5756 */ 5757 void 5758 win_drag_status_line(win_T *dragwin, int offset) 5759 { 5760 frame_T *curfr; 5761 frame_T *fr; 5762 int room; 5763 int row; 5764 int up; // if TRUE, drag status line up, otherwise down 5765 int n; 5766 5767 fr = dragwin->w_frame; 5768 curfr = fr; 5769 if (fr != topframe) // more than one window 5770 { 5771 fr = fr->fr_parent; 5772 // When the parent frame is not a column of frames, its parent should 5773 // be. 5774 if (fr->fr_layout != FR_COL) 5775 { 5776 curfr = fr; 5777 if (fr != topframe) // only a row of windows, may drag statusline 5778 fr = fr->fr_parent; 5779 } 5780 } 5781 5782 // If this is the last frame in a column, may want to resize the parent 5783 // frame instead (go two up to skip a row of frames). 5784 while (curfr != topframe && curfr->fr_next == NULL) 5785 { 5786 if (fr != topframe) 5787 fr = fr->fr_parent; 5788 curfr = fr; 5789 if (fr != topframe) 5790 fr = fr->fr_parent; 5791 } 5792 5793 if (offset < 0) // drag up 5794 { 5795 up = TRUE; 5796 offset = -offset; 5797 // sum up the room of the current frame and above it 5798 if (fr == curfr) 5799 { 5800 // only one window 5801 room = fr->fr_height - frame_minheight(fr, NULL); 5802 } 5803 else 5804 { 5805 room = 0; 5806 for (fr = fr->fr_child; ; fr = fr->fr_next) 5807 { 5808 room += fr->fr_height - frame_minheight(fr, NULL); 5809 if (fr == curfr) 5810 break; 5811 } 5812 } 5813 fr = curfr->fr_next; // put fr at frame that grows 5814 } 5815 else // drag down 5816 { 5817 up = FALSE; 5818 /* 5819 * Only dragging the last status line can reduce p_ch. 5820 */ 5821 room = Rows - cmdline_row; 5822 if (curfr->fr_next == NULL) 5823 room -= 1; 5824 else 5825 room -= p_ch; 5826 if (room < 0) 5827 room = 0; 5828 // sum up the room of frames below of the current one 5829 FOR_ALL_FRAMES(fr, curfr->fr_next) 5830 room += fr->fr_height - frame_minheight(fr, NULL); 5831 fr = curfr; // put fr at window that grows 5832 } 5833 5834 if (room < offset) // Not enough room 5835 offset = room; // Move as far as we can 5836 if (offset <= 0) 5837 return; 5838 5839 /* 5840 * Grow frame fr by "offset" lines. 5841 * Doesn't happen when dragging the last status line up. 5842 */ 5843 if (fr != NULL) 5844 frame_new_height(fr, fr->fr_height + offset, up, FALSE); 5845 5846 if (up) 5847 fr = curfr; // current frame gets smaller 5848 else 5849 fr = curfr->fr_next; // next frame gets smaller 5850 5851 /* 5852 * Now make the other frames smaller. 5853 */ 5854 while (fr != NULL && offset > 0) 5855 { 5856 n = frame_minheight(fr, NULL); 5857 if (fr->fr_height - offset <= n) 5858 { 5859 offset -= fr->fr_height - n; 5860 frame_new_height(fr, n, !up, FALSE); 5861 } 5862 else 5863 { 5864 frame_new_height(fr, fr->fr_height - offset, !up, FALSE); 5865 break; 5866 } 5867 if (up) 5868 fr = fr->fr_prev; 5869 else 5870 fr = fr->fr_next; 5871 } 5872 row = win_comp_pos(); 5873 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5874 cmdline_row = row; 5875 p_ch = Rows - cmdline_row; 5876 if (p_ch < 1) 5877 p_ch = 1; 5878 curtab->tp_ch_used = p_ch; 5879 redraw_all_later(SOME_VALID); 5880 showmode(); 5881 } 5882 5883 /* 5884 * Separator line of dragwin is dragged "offset" lines right (negative is left). 5885 */ 5886 void 5887 win_drag_vsep_line(win_T *dragwin, int offset) 5888 { 5889 frame_T *curfr; 5890 frame_T *fr; 5891 int room; 5892 int left; // if TRUE, drag separator line left, otherwise right 5893 int n; 5894 5895 fr = dragwin->w_frame; 5896 if (fr == topframe) // only one window (cannot happen?) 5897 return; 5898 curfr = fr; 5899 fr = fr->fr_parent; 5900 // When the parent frame is not a row of frames, its parent should be. 5901 if (fr->fr_layout != FR_ROW) 5902 { 5903 if (fr == topframe) // only a column of windows (cannot happen?) 5904 return; 5905 curfr = fr; 5906 fr = fr->fr_parent; 5907 } 5908 5909 // If this is the last frame in a row, may want to resize a parent 5910 // frame instead. 5911 while (curfr->fr_next == NULL) 5912 { 5913 if (fr == topframe) 5914 break; 5915 curfr = fr; 5916 fr = fr->fr_parent; 5917 if (fr != topframe) 5918 { 5919 curfr = fr; 5920 fr = fr->fr_parent; 5921 } 5922 } 5923 5924 if (offset < 0) // drag left 5925 { 5926 left = TRUE; 5927 offset = -offset; 5928 // sum up the room of the current frame and left of it 5929 room = 0; 5930 for (fr = fr->fr_child; ; fr = fr->fr_next) 5931 { 5932 room += fr->fr_width - frame_minwidth(fr, NULL); 5933 if (fr == curfr) 5934 break; 5935 } 5936 fr = curfr->fr_next; // put fr at frame that grows 5937 } 5938 else // drag right 5939 { 5940 left = FALSE; 5941 // sum up the room of frames right of the current one 5942 room = 0; 5943 FOR_ALL_FRAMES(fr, curfr->fr_next) 5944 room += fr->fr_width - frame_minwidth(fr, NULL); 5945 fr = curfr; // put fr at window that grows 5946 } 5947 5948 if (room < offset) // Not enough room 5949 offset = room; // Move as far as we can 5950 if (offset <= 0) // No room at all, quit. 5951 return; 5952 if (fr == NULL) 5953 return; // Safety check, should not happen. 5954 5955 // grow frame fr by offset lines 5956 frame_new_width(fr, fr->fr_width + offset, left, FALSE); 5957 5958 // shrink other frames: current and at the left or at the right 5959 if (left) 5960 fr = curfr; // current frame gets smaller 5961 else 5962 fr = curfr->fr_next; // next frame gets smaller 5963 5964 while (fr != NULL && offset > 0) 5965 { 5966 n = frame_minwidth(fr, NULL); 5967 if (fr->fr_width - offset <= n) 5968 { 5969 offset -= fr->fr_width - n; 5970 frame_new_width(fr, n, !left, FALSE); 5971 } 5972 else 5973 { 5974 frame_new_width(fr, fr->fr_width - offset, !left, FALSE); 5975 break; 5976 } 5977 if (left) 5978 fr = fr->fr_prev; 5979 else 5980 fr = fr->fr_next; 5981 } 5982 (void)win_comp_pos(); 5983 redraw_all_later(NOT_VALID); 5984 } 5985 5986 #define FRACTION_MULT 16384L 5987 5988 /* 5989 * Set wp->w_fraction for the current w_wrow and w_height. 5990 * Has no effect when the window is less than two lines. 5991 */ 5992 void 5993 set_fraction(win_T *wp) 5994 { 5995 if (wp->w_height > 1) 5996 // When cursor is in the first line the percentage is computed as if 5997 // it's halfway that line. Thus with two lines it is 25%, with three 5998 // lines 17%, etc. Similarly for the last line: 75%, 83%, etc. 5999 wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT 6000 + FRACTION_MULT / 2) / (long)wp->w_height; 6001 } 6002 6003 /* 6004 * Set the height of a window. 6005 * "height" excludes any window toolbar. 6006 * This takes care of the things inside the window, not what happens to the 6007 * window position, the frame or to other windows. 6008 */ 6009 void 6010 win_new_height(win_T *wp, int height) 6011 { 6012 int prev_height = wp->w_height; 6013 6014 // Don't want a negative height. Happens when splitting a tiny window. 6015 // Will equalize heights soon to fix it. 6016 if (height < 0) 6017 height = 0; 6018 if (wp->w_height == height) 6019 return; // nothing to do 6020 6021 if (wp->w_height > 0) 6022 { 6023 if (wp == curwin) 6024 // w_wrow needs to be valid. When setting 'laststatus' this may 6025 // call win_new_height() recursively. 6026 validate_cursor(); 6027 if (wp->w_height != prev_height) 6028 return; // Recursive call already changed the size, bail out here 6029 // to avoid the following to mess things up. 6030 if (wp->w_wrow != wp->w_prev_fraction_row) 6031 set_fraction(wp); 6032 } 6033 6034 wp->w_height = height; 6035 wp->w_skipcol = 0; 6036 6037 // There is no point in adjusting the scroll position when exiting. Some 6038 // values might be invalid. 6039 if (!exiting) 6040 scroll_to_fraction(wp, prev_height); 6041 } 6042 6043 void 6044 scroll_to_fraction(win_T *wp, int prev_height) 6045 { 6046 linenr_T lnum; 6047 int sline, line_size; 6048 int height = wp->w_height; 6049 6050 // Don't change w_topline in any of these cases: 6051 // - window height is 0 6052 // - 'scrollbind' is set and this isn't the current window 6053 // - window height is sufficient to display the whole buffer and first line 6054 // is visible. 6055 if (height > 0 6056 && (!wp->w_p_scb || wp == curwin) 6057 && (height < wp->w_buffer->b_ml.ml_line_count || wp->w_topline > 1)) 6058 { 6059 /* 6060 * Find a value for w_topline that shows the cursor at the same 6061 * relative position in the window as before (more or less). 6062 */ 6063 lnum = wp->w_cursor.lnum; 6064 if (lnum < 1) // can happen when starting up 6065 lnum = 1; 6066 wp->w_wrow = ((long)wp->w_fraction * (long)height - 1L) 6067 / FRACTION_MULT; 6068 line_size = plines_win_col(wp, lnum, (long)(wp->w_cursor.col)) - 1; 6069 sline = wp->w_wrow - line_size; 6070 6071 if (sline >= 0) 6072 { 6073 // Make sure the whole cursor line is visible, if possible. 6074 int rows = plines_win(wp, lnum, FALSE); 6075 6076 if (sline > wp->w_height - rows) 6077 { 6078 sline = wp->w_height - rows; 6079 wp->w_wrow -= rows - line_size; 6080 } 6081 } 6082 6083 if (sline < 0) 6084 { 6085 /* 6086 * Cursor line would go off top of screen if w_wrow was this high. 6087 * Make cursor line the first line in the window. If not enough 6088 * room use w_skipcol; 6089 */ 6090 wp->w_wrow = line_size; 6091 if (wp->w_wrow >= wp->w_height 6092 && (wp->w_width - win_col_off(wp)) > 0) 6093 { 6094 wp->w_skipcol += wp->w_width - win_col_off(wp); 6095 --wp->w_wrow; 6096 while (wp->w_wrow >= wp->w_height) 6097 { 6098 wp->w_skipcol += wp->w_width - win_col_off(wp) 6099 + win_col_off2(wp); 6100 --wp->w_wrow; 6101 } 6102 } 6103 } 6104 else if (sline > 0) 6105 { 6106 while (sline > 0 && lnum > 1) 6107 { 6108 #ifdef FEAT_FOLDING 6109 hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); 6110 if (lnum == 1) 6111 { 6112 // first line in buffer is folded 6113 line_size = 1; 6114 --sline; 6115 break; 6116 } 6117 #endif 6118 --lnum; 6119 #ifdef FEAT_DIFF 6120 if (lnum == wp->w_topline) 6121 line_size = plines_win_nofill(wp, lnum, TRUE) 6122 + wp->w_topfill; 6123 else 6124 #endif 6125 line_size = plines_win(wp, lnum, TRUE); 6126 sline -= line_size; 6127 } 6128 6129 if (sline < 0) 6130 { 6131 /* 6132 * Line we want at top would go off top of screen. Use next 6133 * line instead. 6134 */ 6135 #ifdef FEAT_FOLDING 6136 hasFoldingWin(wp, lnum, NULL, &lnum, TRUE, NULL); 6137 #endif 6138 lnum++; 6139 wp->w_wrow -= line_size + sline; 6140 } 6141 else if (sline > 0) 6142 { 6143 // First line of file reached, use that as topline. 6144 lnum = 1; 6145 wp->w_wrow -= sline; 6146 } 6147 } 6148 set_topline(wp, lnum); 6149 } 6150 6151 if (wp == curwin) 6152 { 6153 if (get_scrolloff_value()) 6154 update_topline(); 6155 curs_columns(FALSE); // validate w_wrow 6156 } 6157 if (prev_height > 0) 6158 wp->w_prev_fraction_row = wp->w_wrow; 6159 6160 win_comp_scroll(wp); 6161 redraw_win_later(wp, SOME_VALID); 6162 wp->w_redr_status = TRUE; 6163 invalidate_botline_win(wp); 6164 } 6165 6166 /* 6167 * Set the width of a window. 6168 */ 6169 void 6170 win_new_width(win_T *wp, int width) 6171 { 6172 wp->w_width = width; 6173 wp->w_lines_valid = 0; 6174 changed_line_abv_curs_win(wp); 6175 invalidate_botline_win(wp); 6176 if (wp == curwin) 6177 { 6178 update_topline(); 6179 curs_columns(TRUE); // validate w_wrow 6180 } 6181 redraw_win_later(wp, NOT_VALID); 6182 wp->w_redr_status = TRUE; 6183 } 6184 6185 void 6186 win_comp_scroll(win_T *wp) 6187 { 6188 wp->w_p_scr = ((unsigned)wp->w_height >> 1); 6189 if (wp->w_p_scr == 0) 6190 wp->w_p_scr = 1; 6191 } 6192 6193 /* 6194 * command_height: called whenever p_ch has been changed 6195 */ 6196 void 6197 command_height(void) 6198 { 6199 int h; 6200 frame_T *frp; 6201 int old_p_ch = curtab->tp_ch_used; 6202 6203 // Use the value of p_ch that we remembered. This is needed for when the 6204 // GUI starts up, we can't be sure in what order things happen. And when 6205 // p_ch was changed in another tab page. 6206 curtab->tp_ch_used = p_ch; 6207 6208 // Find bottom frame with width of screen. 6209 frp = lastwin->w_frame; 6210 while (frp->fr_width != Columns && frp->fr_parent != NULL) 6211 frp = frp->fr_parent; 6212 6213 // Avoid changing the height of a window with 'winfixheight' set. 6214 while (frp->fr_prev != NULL && frp->fr_layout == FR_LEAF 6215 && frp->fr_win->w_p_wfh) 6216 frp = frp->fr_prev; 6217 6218 if (starting != NO_SCREEN) 6219 { 6220 cmdline_row = Rows - p_ch; 6221 6222 if (p_ch > old_p_ch) // p_ch got bigger 6223 { 6224 while (p_ch > old_p_ch) 6225 { 6226 if (frp == NULL) 6227 { 6228 emsg(_(e_noroom)); 6229 p_ch = old_p_ch; 6230 curtab->tp_ch_used = p_ch; 6231 cmdline_row = Rows - p_ch; 6232 break; 6233 } 6234 h = frp->fr_height - frame_minheight(frp, NULL); 6235 if (h > p_ch - old_p_ch) 6236 h = p_ch - old_p_ch; 6237 old_p_ch += h; 6238 frame_add_height(frp, -h); 6239 frp = frp->fr_prev; 6240 } 6241 6242 // Recompute window positions. 6243 (void)win_comp_pos(); 6244 6245 // clear the lines added to cmdline 6246 if (full_screen) 6247 screen_fill((int)(cmdline_row), (int)Rows, 0, 6248 (int)Columns, ' ', ' ', 0); 6249 msg_row = cmdline_row; 6250 redraw_cmdline = TRUE; 6251 return; 6252 } 6253 6254 if (msg_row < cmdline_row) 6255 msg_row = cmdline_row; 6256 redraw_cmdline = TRUE; 6257 } 6258 frame_add_height(frp, (int)(old_p_ch - p_ch)); 6259 6260 // Recompute window positions. 6261 if (frp != lastwin->w_frame) 6262 (void)win_comp_pos(); 6263 } 6264 6265 /* 6266 * Resize frame "frp" to be "n" lines higher (negative for less high). 6267 * Also resize the frames it is contained in. 6268 */ 6269 static void 6270 frame_add_height(frame_T *frp, int n) 6271 { 6272 frame_new_height(frp, frp->fr_height + n, FALSE, FALSE); 6273 for (;;) 6274 { 6275 frp = frp->fr_parent; 6276 if (frp == NULL) 6277 break; 6278 frp->fr_height += n; 6279 } 6280 } 6281 6282 /* 6283 * Add or remove a status line for the bottom window(s), according to the 6284 * value of 'laststatus'. 6285 */ 6286 void 6287 last_status( 6288 int morewin) // pretend there are two or more windows 6289 { 6290 // Don't make a difference between horizontal or vertical split. 6291 last_status_rec(topframe, (p_ls == 2 6292 || (p_ls == 1 && (morewin || !ONE_WINDOW)))); 6293 } 6294 6295 static void 6296 last_status_rec(frame_T *fr, int statusline) 6297 { 6298 frame_T *fp; 6299 win_T *wp; 6300 6301 if (fr->fr_layout == FR_LEAF) 6302 { 6303 wp = fr->fr_win; 6304 if (wp->w_status_height != 0 && !statusline) 6305 { 6306 // remove status line 6307 win_new_height(wp, wp->w_height + 1); 6308 wp->w_status_height = 0; 6309 comp_col(); 6310 } 6311 else if (wp->w_status_height == 0 && statusline) 6312 { 6313 // Find a frame to take a line from. 6314 fp = fr; 6315 while (fp->fr_height <= frame_minheight(fp, NULL)) 6316 { 6317 if (fp == topframe) 6318 { 6319 emsg(_(e_noroom)); 6320 return; 6321 } 6322 // In a column of frames: go to frame above. If already at 6323 // the top or in a row of frames: go to parent. 6324 if (fp->fr_parent->fr_layout == FR_COL && fp->fr_prev != NULL) 6325 fp = fp->fr_prev; 6326 else 6327 fp = fp->fr_parent; 6328 } 6329 wp->w_status_height = 1; 6330 if (fp != fr) 6331 { 6332 frame_new_height(fp, fp->fr_height - 1, FALSE, FALSE); 6333 frame_fix_height(wp); 6334 (void)win_comp_pos(); 6335 } 6336 else 6337 win_new_height(wp, wp->w_height - 1); 6338 comp_col(); 6339 redraw_all_later(SOME_VALID); 6340 } 6341 } 6342 else if (fr->fr_layout == FR_ROW) 6343 { 6344 // vertically split windows, set status line for each one 6345 FOR_ALL_FRAMES(fp, fr->fr_child) 6346 last_status_rec(fp, statusline); 6347 } 6348 else 6349 { 6350 // horizontally split window, set status line for last one 6351 for (fp = fr->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 6352 ; 6353 last_status_rec(fp, statusline); 6354 } 6355 } 6356 6357 /* 6358 * Return the number of lines used by the tab page line. 6359 */ 6360 int 6361 tabline_height(void) 6362 { 6363 #ifdef FEAT_GUI_TABLINE 6364 // When the GUI has the tabline then this always returns zero. 6365 if (gui_use_tabline()) 6366 return 0; 6367 #endif 6368 switch (p_stal) 6369 { 6370 case 0: return 0; 6371 case 1: return (first_tabpage->tp_next == NULL) ? 0 : 1; 6372 } 6373 return 1; 6374 } 6375 6376 /* 6377 * Return the minimal number of rows that is needed on the screen to display 6378 * the current number of windows. 6379 */ 6380 int 6381 min_rows(void) 6382 { 6383 int total; 6384 tabpage_T *tp; 6385 int n; 6386 6387 if (firstwin == NULL) // not initialized yet 6388 return MIN_LINES; 6389 6390 total = 0; 6391 FOR_ALL_TABPAGES(tp) 6392 { 6393 n = frame_minheight(tp->tp_topframe, NULL); 6394 if (total < n) 6395 total = n; 6396 } 6397 total += tabline_height(); 6398 total += 1; // count the room for the command line 6399 return total; 6400 } 6401 6402 /* 6403 * Return TRUE if there is only one window and only one tab page, not 6404 * counting a help or preview window, unless it is the current window. 6405 * Does not count unlisted windows. 6406 */ 6407 int 6408 only_one_window(void) 6409 { 6410 int count = 0; 6411 win_T *wp; 6412 6413 // If there is another tab page there always is another window. 6414 if (first_tabpage->tp_next != NULL) 6415 return FALSE; 6416 6417 FOR_ALL_WINDOWS(wp) 6418 if (wp->w_buffer != NULL 6419 && (!((bt_help(wp->w_buffer) && !bt_help(curbuf)) 6420 # ifdef FEAT_QUICKFIX 6421 || wp->w_p_pvw 6422 # endif 6423 ) || wp == curwin) && wp != aucmd_win) 6424 ++count; 6425 return (count <= 1); 6426 } 6427 6428 /* 6429 * Correct the cursor line number in other windows. Used after changing the 6430 * current buffer, and before applying autocommands. 6431 * When "do_curwin" is TRUE, also check current window. 6432 */ 6433 void 6434 check_lnums(int do_curwin) 6435 { 6436 win_T *wp; 6437 tabpage_T *tp; 6438 6439 FOR_ALL_TAB_WINDOWS(tp, wp) 6440 if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) 6441 { 6442 // save the original cursor position and topline 6443 wp->w_save_cursor.w_cursor_save = wp->w_cursor; 6444 wp->w_save_cursor.w_topline_save = wp->w_topline; 6445 6446 if (wp->w_cursor.lnum > curbuf->b_ml.ml_line_count) 6447 wp->w_cursor.lnum = curbuf->b_ml.ml_line_count; 6448 if (wp->w_topline > curbuf->b_ml.ml_line_count) 6449 wp->w_topline = curbuf->b_ml.ml_line_count; 6450 6451 // save the corrected cursor position and topline 6452 wp->w_save_cursor.w_cursor_corr = wp->w_cursor; 6453 wp->w_save_cursor.w_topline_corr = wp->w_topline; 6454 } 6455 } 6456 6457 /* 6458 * Reset cursor and topline to its stored values from check_lnums(). 6459 * check_lnums() must have been called first! 6460 */ 6461 void 6462 reset_lnums() 6463 { 6464 win_T *wp; 6465 tabpage_T *tp; 6466 6467 FOR_ALL_TAB_WINDOWS(tp, wp) 6468 if (wp->w_buffer == curbuf) 6469 { 6470 // Restore the value if the autocommand didn't change it. 6471 if (EQUAL_POS(wp->w_save_cursor.w_cursor_corr, wp->w_cursor)) 6472 wp->w_cursor = wp->w_save_cursor.w_cursor_save; 6473 if (wp->w_save_cursor.w_topline_corr == wp->w_topline) 6474 wp->w_topline = wp->w_save_cursor.w_topline_save; 6475 } 6476 } 6477 6478 /* 6479 * A snapshot of the window sizes, to restore them after closing the help 6480 * window. 6481 * Only these fields are used: 6482 * fr_layout 6483 * fr_width 6484 * fr_height 6485 * fr_next 6486 * fr_child 6487 * fr_win (only valid for the old curwin, NULL otherwise) 6488 */ 6489 6490 /* 6491 * Create a snapshot of the current frame sizes. 6492 */ 6493 void 6494 make_snapshot(int idx) 6495 { 6496 clear_snapshot(curtab, idx); 6497 make_snapshot_rec(topframe, &curtab->tp_snapshot[idx]); 6498 } 6499 6500 static void 6501 make_snapshot_rec(frame_T *fr, frame_T **frp) 6502 { 6503 *frp = ALLOC_CLEAR_ONE(frame_T); 6504 if (*frp == NULL) 6505 return; 6506 (*frp)->fr_layout = fr->fr_layout; 6507 (*frp)->fr_width = fr->fr_width; 6508 (*frp)->fr_height = fr->fr_height; 6509 if (fr->fr_next != NULL) 6510 make_snapshot_rec(fr->fr_next, &((*frp)->fr_next)); 6511 if (fr->fr_child != NULL) 6512 make_snapshot_rec(fr->fr_child, &((*frp)->fr_child)); 6513 if (fr->fr_layout == FR_LEAF && fr->fr_win == curwin) 6514 (*frp)->fr_win = curwin; 6515 } 6516 6517 /* 6518 * Remove any existing snapshot. 6519 */ 6520 static void 6521 clear_snapshot(tabpage_T *tp, int idx) 6522 { 6523 clear_snapshot_rec(tp->tp_snapshot[idx]); 6524 tp->tp_snapshot[idx] = NULL; 6525 } 6526 6527 static void 6528 clear_snapshot_rec(frame_T *fr) 6529 { 6530 if (fr != NULL) 6531 { 6532 clear_snapshot_rec(fr->fr_next); 6533 clear_snapshot_rec(fr->fr_child); 6534 vim_free(fr); 6535 } 6536 } 6537 6538 /* 6539 * Restore a previously created snapshot, if there is any. 6540 * This is only done if the screen size didn't change and the window layout is 6541 * still the same. 6542 */ 6543 void 6544 restore_snapshot( 6545 int idx, 6546 int close_curwin) // closing current window 6547 { 6548 win_T *wp; 6549 6550 if (curtab->tp_snapshot[idx] != NULL 6551 && curtab->tp_snapshot[idx]->fr_width == topframe->fr_width 6552 && curtab->tp_snapshot[idx]->fr_height == topframe->fr_height 6553 && check_snapshot_rec(curtab->tp_snapshot[idx], topframe) == OK) 6554 { 6555 wp = restore_snapshot_rec(curtab->tp_snapshot[idx], topframe); 6556 win_comp_pos(); 6557 if (wp != NULL && close_curwin) 6558 win_goto(wp); 6559 redraw_all_later(NOT_VALID); 6560 } 6561 clear_snapshot(curtab, idx); 6562 } 6563 6564 /* 6565 * Check if frames "sn" and "fr" have the same layout, same following frames 6566 * and same children. And the window pointer is valid. 6567 */ 6568 static int 6569 check_snapshot_rec(frame_T *sn, frame_T *fr) 6570 { 6571 if (sn->fr_layout != fr->fr_layout 6572 || (sn->fr_next == NULL) != (fr->fr_next == NULL) 6573 || (sn->fr_child == NULL) != (fr->fr_child == NULL) 6574 || (sn->fr_next != NULL 6575 && check_snapshot_rec(sn->fr_next, fr->fr_next) == FAIL) 6576 || (sn->fr_child != NULL 6577 && check_snapshot_rec(sn->fr_child, fr->fr_child) == FAIL) 6578 || (sn->fr_win != NULL && !win_valid(sn->fr_win))) 6579 return FAIL; 6580 return OK; 6581 } 6582 6583 /* 6584 * Copy the size of snapshot frame "sn" to frame "fr". Do the same for all 6585 * following frames and children. 6586 * Returns a pointer to the old current window, or NULL. 6587 */ 6588 static win_T * 6589 restore_snapshot_rec(frame_T *sn, frame_T *fr) 6590 { 6591 win_T *wp = NULL; 6592 win_T *wp2; 6593 6594 fr->fr_height = sn->fr_height; 6595 fr->fr_width = sn->fr_width; 6596 if (fr->fr_layout == FR_LEAF) 6597 { 6598 frame_new_height(fr, fr->fr_height, FALSE, FALSE); 6599 frame_new_width(fr, fr->fr_width, FALSE, FALSE); 6600 wp = sn->fr_win; 6601 } 6602 if (sn->fr_next != NULL) 6603 { 6604 wp2 = restore_snapshot_rec(sn->fr_next, fr->fr_next); 6605 if (wp2 != NULL) 6606 wp = wp2; 6607 } 6608 if (sn->fr_child != NULL) 6609 { 6610 wp2 = restore_snapshot_rec(sn->fr_child, fr->fr_child); 6611 if (wp2 != NULL) 6612 wp = wp2; 6613 } 6614 return wp; 6615 } 6616 6617 #if defined(FEAT_GUI) || defined(PROTO) 6618 /* 6619 * Return TRUE if there is any vertically split window. 6620 */ 6621 int 6622 win_hasvertsplit(void) 6623 { 6624 frame_T *fr; 6625 6626 if (topframe->fr_layout == FR_ROW) 6627 return TRUE; 6628 6629 if (topframe->fr_layout == FR_COL) 6630 FOR_ALL_FRAMES(fr, topframe->fr_child) 6631 if (fr->fr_layout == FR_ROW) 6632 return TRUE; 6633 6634 return FALSE; 6635 } 6636 #endif 6637 6638 #if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO) 6639 int 6640 get_win_number(win_T *wp, win_T *first_win) 6641 { 6642 int i = 1; 6643 win_T *w; 6644 6645 for (w = first_win; w != NULL && w != wp; w = W_NEXT(w)) 6646 ++i; 6647 6648 if (w == NULL) 6649 return 0; 6650 else 6651 return i; 6652 } 6653 6654 int 6655 get_tab_number(tabpage_T *tp UNUSED) 6656 { 6657 int i = 1; 6658 tabpage_T *t; 6659 6660 for (t = first_tabpage; t != NULL && t != tp; t = t->tp_next) 6661 ++i; 6662 6663 if (t == NULL) 6664 return 0; 6665 else 6666 return i; 6667 } 6668 #endif 6669 6670 /* 6671 * Return TRUE if "topfrp" and its children are at the right height. 6672 */ 6673 static int 6674 frame_check_height(frame_T *topfrp, int height) 6675 { 6676 frame_T *frp; 6677 6678 if (topfrp->fr_height != height) 6679 return FALSE; 6680 6681 if (topfrp->fr_layout == FR_ROW) 6682 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6683 if (frp->fr_height != height) 6684 return FALSE; 6685 6686 return TRUE; 6687 } 6688 6689 /* 6690 * Return TRUE if "topfrp" and its children are at the right width. 6691 */ 6692 static int 6693 frame_check_width(frame_T *topfrp, int width) 6694 { 6695 frame_T *frp; 6696 6697 if (topfrp->fr_width != width) 6698 return FALSE; 6699 6700 if (topfrp->fr_layout == FR_COL) 6701 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6702 if (frp->fr_width != width) 6703 return FALSE; 6704 6705 return TRUE; 6706 } 6707 6708 #if defined(FEAT_SYN_HL) || defined(PROTO) 6709 /* 6710 * Simple int comparison function for use with qsort() 6711 */ 6712 static int 6713 int_cmp(const void *a, const void *b) 6714 { 6715 return *(const int *)a - *(const int *)b; 6716 } 6717 6718 /* 6719 * Handle setting 'colorcolumn' or 'textwidth' in window "wp". 6720 * Returns error message, NULL if it's OK. 6721 */ 6722 char * 6723 check_colorcolumn(win_T *wp) 6724 { 6725 char_u *s; 6726 int col; 6727 int count = 0; 6728 int color_cols[256]; 6729 int i; 6730 int j = 0; 6731 6732 if (wp->w_buffer == NULL) 6733 return NULL; // buffer was closed 6734 6735 for (s = wp->w_p_cc; *s != NUL && count < 255;) 6736 { 6737 if (*s == '-' || *s == '+') 6738 { 6739 // -N and +N: add to 'textwidth' 6740 col = (*s == '-') ? -1 : 1; 6741 ++s; 6742 if (!VIM_ISDIGIT(*s)) 6743 return e_invarg; 6744 col = col * getdigits(&s); 6745 if (wp->w_buffer->b_p_tw == 0) 6746 goto skip; // 'textwidth' not set, skip this item 6747 col += wp->w_buffer->b_p_tw; 6748 if (col < 0) 6749 goto skip; 6750 } 6751 else if (VIM_ISDIGIT(*s)) 6752 col = getdigits(&s); 6753 else 6754 return e_invarg; 6755 color_cols[count++] = col - 1; // 1-based to 0-based 6756 skip: 6757 if (*s == NUL) 6758 break; 6759 if (*s != ',') 6760 return e_invarg; 6761 if (*++s == NUL) 6762 return e_invarg; // illegal trailing comma as in "set cc=80," 6763 } 6764 6765 vim_free(wp->w_p_cc_cols); 6766 if (count == 0) 6767 wp->w_p_cc_cols = NULL; 6768 else 6769 { 6770 wp->w_p_cc_cols = ALLOC_MULT(int, count + 1); 6771 if (wp->w_p_cc_cols != NULL) 6772 { 6773 // sort the columns for faster usage on screen redraw inside 6774 // win_line() 6775 qsort(color_cols, count, sizeof(int), int_cmp); 6776 6777 for (i = 0; i < count; ++i) 6778 // skip duplicates 6779 if (j == 0 || wp->w_p_cc_cols[j - 1] != color_cols[i]) 6780 wp->w_p_cc_cols[j++] = color_cols[i]; 6781 wp->w_p_cc_cols[j] = -1; // end marker 6782 } 6783 } 6784 6785 return NULL; // no error 6786 } 6787 #endif 6788