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_ANY_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 CHECK_CMDWIN; 344 if (one_window()) 345 msg(_(m_onlyone)); 346 else 347 { 348 tabpage_T *oldtab = curtab; 349 tabpage_T *newtab; 350 351 // First create a new tab with the window, then go back to 352 // the old tab and close the window there. 353 wp = curwin; 354 if (win_new_tabpage((int)Prenum) == OK 355 && valid_tabpage(oldtab)) 356 { 357 newtab = curtab; 358 goto_tabpage_tp(oldtab, TRUE, TRUE); 359 if (curwin == wp) 360 win_close(curwin, FALSE); 361 if (valid_tabpage(newtab)) 362 goto_tabpage_tp(newtab, TRUE, TRUE); 363 } 364 } 365 break; 366 367 // cursor to top-left window 368 case 't': 369 case Ctrl_T: 370 win_goto(firstwin); 371 break; 372 373 // cursor to bottom-right window 374 case 'b': 375 case Ctrl_B: 376 win_goto(lastwin); 377 break; 378 379 // cursor to last accessed (previous) window 380 case 'p': 381 case Ctrl_P: 382 if (!win_valid(prevwin)) 383 beep_flush(); 384 else 385 win_goto(prevwin); 386 break; 387 388 // exchange current and next window 389 case 'x': 390 case Ctrl_X: 391 CHECK_CMDWIN; 392 win_exchange(Prenum); 393 break; 394 395 // rotate windows downwards 396 case Ctrl_R: 397 case 'r': 398 CHECK_CMDWIN; 399 reset_VIsual_and_resel(); // stop Visual mode 400 win_rotate(FALSE, (int)Prenum1); // downwards 401 break; 402 403 // rotate windows upwards 404 case 'R': 405 CHECK_CMDWIN; 406 reset_VIsual_and_resel(); // stop Visual mode 407 win_rotate(TRUE, (int)Prenum1); // upwards 408 break; 409 410 // move window to the very top/bottom/left/right 411 case 'K': 412 case 'J': 413 case 'H': 414 case 'L': 415 CHECK_CMDWIN; 416 win_totop((int)Prenum, 417 ((nchar == 'H' || nchar == 'L') ? WSP_VERT : 0) 418 | ((nchar == 'H' || nchar == 'K') ? WSP_TOP : WSP_BOT)); 419 break; 420 421 // make all windows the same height 422 case '=': 423 #ifdef FEAT_GUI 424 need_mouse_correct = TRUE; 425 #endif 426 win_equal(NULL, FALSE, 'b'); 427 break; 428 429 // increase current window height 430 case '+': 431 #ifdef FEAT_GUI 432 need_mouse_correct = TRUE; 433 #endif 434 win_setheight(curwin->w_height + (int)Prenum1); 435 break; 436 437 // decrease current window height 438 case '-': 439 #ifdef FEAT_GUI 440 need_mouse_correct = TRUE; 441 #endif 442 win_setheight(curwin->w_height - (int)Prenum1); 443 break; 444 445 // set current window height 446 case Ctrl__: 447 case '_': 448 #ifdef FEAT_GUI 449 need_mouse_correct = TRUE; 450 #endif 451 win_setheight(Prenum ? (int)Prenum : 9999); 452 break; 453 454 // increase current window width 455 case '>': 456 #ifdef FEAT_GUI 457 need_mouse_correct = TRUE; 458 #endif 459 win_setwidth(curwin->w_width + (int)Prenum1); 460 break; 461 462 // decrease current window width 463 case '<': 464 #ifdef FEAT_GUI 465 need_mouse_correct = TRUE; 466 #endif 467 win_setwidth(curwin->w_width - (int)Prenum1); 468 break; 469 470 // set current window width 471 case '|': 472 #ifdef FEAT_GUI 473 need_mouse_correct = TRUE; 474 #endif 475 win_setwidth(Prenum != 0 ? (int)Prenum : 9999); 476 break; 477 478 // jump to tag and split window if tag exists (in preview window) 479 #if defined(FEAT_QUICKFIX) 480 case '}': 481 CHECK_CMDWIN; 482 if (Prenum) 483 g_do_tagpreview = Prenum; 484 else 485 g_do_tagpreview = p_pvh; 486 #endif 487 // FALLTHROUGH 488 case ']': 489 case Ctrl_RSB: 490 CHECK_CMDWIN; 491 // keep Visual mode, can select words to use as a tag 492 if (Prenum) 493 postponed_split = Prenum; 494 else 495 postponed_split = -1; 496 #ifdef FEAT_QUICKFIX 497 if (nchar != '}') 498 g_do_tagpreview = 0; 499 #endif 500 501 // Execute the command right here, required when "wincmd ]" 502 // was used in a function. 503 do_nv_ident(Ctrl_RSB, NUL); 504 break; 505 506 #ifdef FEAT_SEARCHPATH 507 // edit file name under cursor in a new window 508 case 'f': 509 case 'F': 510 case Ctrl_F: 511 wingotofile: 512 CHECK_CMDWIN; 513 514 ptr = grab_file_name(Prenum1, &lnum); 515 if (ptr != NULL) 516 { 517 tabpage_T *oldtab = curtab; 518 win_T *oldwin = curwin; 519 # ifdef FEAT_GUI 520 need_mouse_correct = TRUE; 521 # endif 522 setpcmark(); 523 if (win_split(0, 0) == OK) 524 { 525 RESET_BINDING(curwin); 526 if (do_ecmd(0, ptr, NULL, NULL, ECMD_LASTL, 527 ECMD_HIDE, NULL) == FAIL) 528 { 529 // Failed to open the file, close the window 530 // opened for it. 531 win_close(curwin, FALSE); 532 goto_tabpage_win(oldtab, oldwin); 533 } 534 else if (nchar == 'F' && lnum >= 0) 535 { 536 curwin->w_cursor.lnum = lnum; 537 check_cursor_lnum(); 538 beginline(BL_SOL | BL_FIX); 539 } 540 } 541 vim_free(ptr); 542 } 543 break; 544 #endif 545 546 #ifdef FEAT_FIND_ID 547 // Go to the first occurrence of the identifier under cursor along path in a 548 // new window -- webb 549 case 'i': // Go to any match 550 case Ctrl_I: 551 type = FIND_ANY; 552 // FALLTHROUGH 553 case 'd': // Go to definition, using 'define' 554 case Ctrl_D: 555 CHECK_CMDWIN; 556 if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0) 557 break; 558 find_pattern_in_path(ptr, 0, len, TRUE, 559 Prenum == 0 ? TRUE : FALSE, type, 560 Prenum1, ACTION_SPLIT, (linenr_T)1, (linenr_T)MAXLNUM); 561 curwin->w_set_curswant = TRUE; 562 break; 563 #endif 564 565 // Quickfix window only: view the result under the cursor in a new split. 566 #if defined(FEAT_QUICKFIX) 567 case K_KENTER: 568 case CAR: 569 if (bt_quickfix(curbuf)) 570 qf_view_result(TRUE); 571 break; 572 #endif 573 574 // CTRL-W g extended commands 575 case 'g': 576 case Ctrl_G: 577 CHECK_CMDWIN; 578 #ifdef USE_ON_FLY_SCROLL 579 dont_scroll = TRUE; // disallow scrolling here 580 #endif 581 ++no_mapping; 582 ++allow_keys; // no mapping for xchar, but allow key codes 583 if (xchar == NUL) 584 xchar = plain_vgetc(); 585 LANGMAP_ADJUST(xchar, TRUE); 586 --no_mapping; 587 --allow_keys; 588 #ifdef FEAT_CMDL_INFO 589 (void)add_to_showcmd(xchar); 590 #endif 591 switch (xchar) 592 { 593 #if defined(FEAT_QUICKFIX) 594 case '}': 595 xchar = Ctrl_RSB; 596 if (Prenum) 597 g_do_tagpreview = Prenum; 598 else 599 g_do_tagpreview = p_pvh; 600 #endif 601 // FALLTHROUGH 602 case ']': 603 case Ctrl_RSB: 604 // keep Visual mode, can select words to use as a tag 605 if (Prenum) 606 postponed_split = Prenum; 607 else 608 postponed_split = -1; 609 610 // Execute the command right here, required when 611 // "wincmd g}" was used in a function. 612 do_nv_ident('g', xchar); 613 break; 614 615 #ifdef FEAT_SEARCHPATH 616 case 'f': // CTRL-W gf: "gf" in a new tab page 617 case 'F': // CTRL-W gF: "gF" in a new tab page 618 cmdmod.cmod_tab = tabpage_index(curtab) + 1; 619 nchar = xchar; 620 goto wingotofile; 621 #endif 622 case 't': // CTRL-W gt: go to next tab page 623 goto_tabpage((int)Prenum); 624 break; 625 626 case 'T': // CTRL-W gT: go to previous tab page 627 goto_tabpage(-(int)Prenum1); 628 break; 629 630 case TAB: // CTRL-W g<Tab>: go to last used tab page 631 if (goto_tabpage_lastused() == FAIL) 632 beep_flush(); 633 break; 634 635 default: 636 beep_flush(); 637 break; 638 } 639 break; 640 641 default: beep_flush(); 642 break; 643 } 644 } 645 646 /* 647 * Figure out the address type for ":wincmd". 648 */ 649 void 650 get_wincmd_addr_type(char_u *arg, exarg_T *eap) 651 { 652 switch (*arg) 653 { 654 case 'S': 655 case Ctrl_S: 656 case 's': 657 case Ctrl_N: 658 case 'n': 659 case 'j': 660 case Ctrl_J: 661 case 'k': 662 case Ctrl_K: 663 case 'T': 664 case Ctrl_R: 665 case 'r': 666 case 'R': 667 case 'K': 668 case 'J': 669 case '+': 670 case '-': 671 case Ctrl__: 672 case '_': 673 case '|': 674 case ']': 675 case Ctrl_RSB: 676 case 'g': 677 case Ctrl_G: 678 case Ctrl_V: 679 case 'v': 680 case 'h': 681 case Ctrl_H: 682 case 'l': 683 case Ctrl_L: 684 case 'H': 685 case 'L': 686 case '>': 687 case '<': 688 #if defined(FEAT_QUICKFIX) 689 case '}': 690 #endif 691 #ifdef FEAT_SEARCHPATH 692 case 'f': 693 case 'F': 694 case Ctrl_F: 695 #endif 696 #ifdef FEAT_FIND_ID 697 case 'i': 698 case Ctrl_I: 699 case 'd': 700 case Ctrl_D: 701 #endif 702 // window size or any count 703 eap->addr_type = ADDR_OTHER; 704 break; 705 706 case Ctrl_HAT: 707 case '^': 708 // buffer number 709 eap->addr_type = ADDR_BUFFERS; 710 break; 711 712 case Ctrl_Q: 713 case 'q': 714 case Ctrl_C: 715 case 'c': 716 case Ctrl_O: 717 case 'o': 718 case Ctrl_W: 719 case 'w': 720 case 'W': 721 case 'x': 722 case Ctrl_X: 723 // window number 724 eap->addr_type = ADDR_WINDOWS; 725 break; 726 727 #if defined(FEAT_QUICKFIX) 728 case Ctrl_Z: 729 case 'z': 730 case 'P': 731 #endif 732 case 't': 733 case Ctrl_T: 734 case 'b': 735 case Ctrl_B: 736 case 'p': 737 case Ctrl_P: 738 case '=': 739 case CAR: 740 // no count 741 eap->addr_type = ADDR_NONE; 742 break; 743 } 744 } 745 746 static void 747 cmd_with_count( 748 char *cmd, 749 char_u *bufp, 750 size_t bufsize, 751 long Prenum) 752 { 753 size_t len = STRLEN(cmd); 754 755 STRCPY(bufp, cmd); 756 if (Prenum > 0) 757 vim_snprintf((char *)bufp + len, bufsize - len, "%ld", Prenum); 758 } 759 760 /* 761 * If "split_disallowed" is set given an error and return FAIL. 762 * Otherwise return OK. 763 */ 764 static int 765 check_split_disallowed() 766 { 767 if (split_disallowed > 0) 768 { 769 emsg(_("E242: Can't split a window while closing another")); 770 return FAIL; 771 } 772 return OK; 773 } 774 775 /* 776 * split the current window, implements CTRL-W s and :split 777 * 778 * "size" is the height or width for the new window, 0 to use half of current 779 * height or width. 780 * 781 * "flags": 782 * WSP_ROOM: require enough room for new window 783 * WSP_VERT: vertical split. 784 * WSP_TOP: open window at the top-left of the shell (help window). 785 * WSP_BOT: open window at the bottom-right of the shell (quickfix window). 786 * WSP_HELP: creating the help window, keep layout snapshot 787 * 788 * return FAIL for failure, OK otherwise 789 */ 790 int 791 win_split(int size, int flags) 792 { 793 if (ERROR_IF_ANY_POPUP_WINDOW) 794 return FAIL; 795 796 // When the ":tab" modifier was used open a new tab page instead. 797 if (may_open_tabpage() == OK) 798 return OK; 799 800 // Add flags from ":vertical", ":topleft" and ":botright". 801 flags |= cmdmod.cmod_split; 802 if ((flags & WSP_TOP) && (flags & WSP_BOT)) 803 { 804 emsg(_("E442: Can't split topleft and botright at the same time")); 805 return FAIL; 806 } 807 if (check_split_disallowed() == FAIL) 808 return FAIL; 809 810 // When creating the help window make a snapshot of the window layout. 811 // Otherwise clear the snapshot, it's now invalid. 812 if (flags & WSP_HELP) 813 make_snapshot(SNAP_HELP_IDX); 814 else 815 clear_snapshot(curtab, SNAP_HELP_IDX); 816 817 return win_split_ins(size, flags, NULL, 0); 818 } 819 820 /* 821 * When "new_wp" is NULL: split the current window in two. 822 * When "new_wp" is not NULL: insert this window at the far 823 * top/left/right/bottom. 824 * return FAIL for failure, OK otherwise 825 */ 826 int 827 win_split_ins( 828 int size, 829 int flags, 830 win_T *new_wp, 831 int dir) 832 { 833 win_T *wp = new_wp; 834 win_T *oldwin; 835 int new_size = size; 836 int i; 837 int need_status = 0; 838 int do_equal = FALSE; 839 int needed; 840 int available; 841 int oldwin_height = 0; 842 int layout; 843 frame_T *frp, *curfrp, *frp2, *prevfrp; 844 int before; 845 int minheight; 846 int wmh1; 847 int did_set_fraction = FALSE; 848 849 if (flags & WSP_TOP) 850 oldwin = firstwin; 851 else if (flags & WSP_BOT) 852 oldwin = lastwin; 853 else 854 oldwin = curwin; 855 856 // add a status line when p_ls == 1 and splitting the first window 857 if (ONE_WINDOW && p_ls == 1 && oldwin->w_status_height == 0) 858 { 859 if (VISIBLE_HEIGHT(oldwin) <= p_wmh && new_wp == NULL) 860 { 861 emsg(_(e_noroom)); 862 return FAIL; 863 } 864 need_status = STATUS_HEIGHT; 865 } 866 867 #ifdef FEAT_GUI 868 // May be needed for the scrollbars that are going to change. 869 if (gui.in_use) 870 out_flush(); 871 #endif 872 873 if (flags & WSP_VERT) 874 { 875 int wmw1; 876 int minwidth; 877 878 layout = FR_ROW; 879 880 /* 881 * Check if we are able to split the current window and compute its 882 * width. 883 */ 884 // Current window requires at least 1 space. 885 wmw1 = (p_wmw == 0 ? 1 : p_wmw); 886 needed = wmw1 + 1; 887 if (flags & WSP_ROOM) 888 needed += p_wiw - wmw1; 889 if (flags & (WSP_BOT | WSP_TOP)) 890 { 891 minwidth = frame_minwidth(topframe, NOWIN); 892 available = topframe->fr_width; 893 needed += minwidth; 894 } 895 else if (p_ea) 896 { 897 minwidth = frame_minwidth(oldwin->w_frame, NOWIN); 898 prevfrp = oldwin->w_frame; 899 for (frp = oldwin->w_frame->fr_parent; frp != NULL; 900 frp = frp->fr_parent) 901 { 902 if (frp->fr_layout == FR_ROW) 903 FOR_ALL_FRAMES(frp2, frp->fr_child) 904 if (frp2 != prevfrp) 905 minwidth += frame_minwidth(frp2, NOWIN); 906 prevfrp = frp; 907 } 908 available = topframe->fr_width; 909 needed += minwidth; 910 } 911 else 912 { 913 minwidth = frame_minwidth(oldwin->w_frame, NOWIN); 914 available = oldwin->w_frame->fr_width; 915 needed += minwidth; 916 } 917 if (available < needed && new_wp == NULL) 918 { 919 emsg(_(e_noroom)); 920 return FAIL; 921 } 922 if (new_size == 0) 923 new_size = oldwin->w_width / 2; 924 if (new_size > available - minwidth - 1) 925 new_size = available - minwidth - 1; 926 if (new_size < wmw1) 927 new_size = wmw1; 928 929 // if it doesn't fit in the current window, need win_equal() 930 if (oldwin->w_width - new_size - 1 < p_wmw) 931 do_equal = TRUE; 932 933 // We don't like to take lines for the new window from a 934 // 'winfixwidth' window. Take them from a window to the left or right 935 // instead, if possible. Add one for the separator. 936 if (oldwin->w_p_wfw) 937 win_setwidth_win(oldwin->w_width + new_size + 1, oldwin); 938 939 // Only make all windows the same width if one of them (except oldwin) 940 // is wider than one of the split windows. 941 if (!do_equal && p_ea && size == 0 && *p_ead != 'v' 942 && oldwin->w_frame->fr_parent != NULL) 943 { 944 frp = oldwin->w_frame->fr_parent->fr_child; 945 while (frp != NULL) 946 { 947 if (frp->fr_win != oldwin && frp->fr_win != NULL 948 && (frp->fr_win->w_width > new_size 949 || frp->fr_win->w_width > oldwin->w_width 950 - new_size - 1)) 951 { 952 do_equal = TRUE; 953 break; 954 } 955 frp = frp->fr_next; 956 } 957 } 958 } 959 else 960 { 961 layout = FR_COL; 962 963 /* 964 * Check if we are able to split the current window and compute its 965 * height. 966 */ 967 // Current window requires at least 1 space. 968 wmh1 = (p_wmh == 0 ? 1 : p_wmh) + WINBAR_HEIGHT(curwin); 969 needed = wmh1 + STATUS_HEIGHT; 970 if (flags & WSP_ROOM) 971 needed += p_wh - wmh1; 972 if (flags & (WSP_BOT | WSP_TOP)) 973 { 974 minheight = frame_minheight(topframe, NOWIN) + need_status; 975 available = topframe->fr_height; 976 needed += minheight; 977 } 978 else if (p_ea) 979 { 980 minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; 981 prevfrp = oldwin->w_frame; 982 for (frp = oldwin->w_frame->fr_parent; frp != NULL; 983 frp = frp->fr_parent) 984 { 985 if (frp->fr_layout == FR_COL) 986 FOR_ALL_FRAMES(frp2, frp->fr_child) 987 if (frp2 != prevfrp) 988 minheight += frame_minheight(frp2, NOWIN); 989 prevfrp = frp; 990 } 991 available = topframe->fr_height; 992 needed += minheight; 993 } 994 else 995 { 996 minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; 997 available = oldwin->w_frame->fr_height; 998 needed += minheight; 999 } 1000 if (available < needed && new_wp == NULL) 1001 { 1002 emsg(_(e_noroom)); 1003 return FAIL; 1004 } 1005 oldwin_height = oldwin->w_height; 1006 if (need_status) 1007 { 1008 oldwin->w_status_height = STATUS_HEIGHT; 1009 oldwin_height -= STATUS_HEIGHT; 1010 } 1011 if (new_size == 0) 1012 new_size = oldwin_height / 2; 1013 if (new_size > available - minheight - STATUS_HEIGHT) 1014 new_size = available - minheight - STATUS_HEIGHT; 1015 if (new_size < wmh1) 1016 new_size = wmh1; 1017 1018 // if it doesn't fit in the current window, need win_equal() 1019 if (oldwin_height - new_size - STATUS_HEIGHT < p_wmh) 1020 do_equal = TRUE; 1021 1022 // We don't like to take lines for the new window from a 1023 // 'winfixheight' window. Take them from a window above or below 1024 // instead, if possible. 1025 if (oldwin->w_p_wfh) 1026 { 1027 // Set w_fraction now so that the cursor keeps the same relative 1028 // vertical position using the old height. 1029 set_fraction(oldwin); 1030 did_set_fraction = TRUE; 1031 1032 win_setheight_win(oldwin->w_height + new_size + STATUS_HEIGHT, 1033 oldwin); 1034 oldwin_height = oldwin->w_height; 1035 if (need_status) 1036 oldwin_height -= STATUS_HEIGHT; 1037 } 1038 1039 // Only make all windows the same height if one of them (except oldwin) 1040 // is higher than one of the split windows. 1041 if (!do_equal && p_ea && size == 0 && *p_ead != 'h' 1042 && oldwin->w_frame->fr_parent != NULL) 1043 { 1044 frp = oldwin->w_frame->fr_parent->fr_child; 1045 while (frp != NULL) 1046 { 1047 if (frp->fr_win != oldwin && frp->fr_win != NULL 1048 && (frp->fr_win->w_height > new_size 1049 || frp->fr_win->w_height > oldwin_height - new_size 1050 - STATUS_HEIGHT)) 1051 { 1052 do_equal = TRUE; 1053 break; 1054 } 1055 frp = frp->fr_next; 1056 } 1057 } 1058 } 1059 1060 /* 1061 * allocate new window structure and link it in the window list 1062 */ 1063 if ((flags & WSP_TOP) == 0 1064 && ((flags & WSP_BOT) 1065 || (flags & WSP_BELOW) 1066 || (!(flags & WSP_ABOVE) 1067 && ( (flags & WSP_VERT) ? p_spr : p_sb)))) 1068 { 1069 // new window below/right of current one 1070 if (new_wp == NULL) 1071 wp = win_alloc(oldwin, FALSE); 1072 else 1073 win_append(oldwin, wp); 1074 } 1075 else 1076 { 1077 if (new_wp == NULL) 1078 wp = win_alloc(oldwin->w_prev, FALSE); 1079 else 1080 win_append(oldwin->w_prev, wp); 1081 } 1082 1083 if (new_wp == NULL) 1084 { 1085 if (wp == NULL) 1086 return FAIL; 1087 1088 new_frame(wp); 1089 if (wp->w_frame == NULL) 1090 { 1091 win_free(wp, NULL); 1092 return FAIL; 1093 } 1094 1095 // make the contents of the new window the same as the current one 1096 win_init(wp, curwin, flags); 1097 } 1098 1099 /* 1100 * Reorganise the tree of frames to insert the new window. 1101 */ 1102 if (flags & (WSP_TOP | WSP_BOT)) 1103 { 1104 if ((topframe->fr_layout == FR_COL && (flags & WSP_VERT) == 0) 1105 || (topframe->fr_layout == FR_ROW && (flags & WSP_VERT) != 0)) 1106 { 1107 curfrp = topframe->fr_child; 1108 if (flags & WSP_BOT) 1109 while (curfrp->fr_next != NULL) 1110 curfrp = curfrp->fr_next; 1111 } 1112 else 1113 curfrp = topframe; 1114 before = (flags & WSP_TOP); 1115 } 1116 else 1117 { 1118 curfrp = oldwin->w_frame; 1119 if (flags & WSP_BELOW) 1120 before = FALSE; 1121 else if (flags & WSP_ABOVE) 1122 before = TRUE; 1123 else if (flags & WSP_VERT) 1124 before = !p_spr; 1125 else 1126 before = !p_sb; 1127 } 1128 if (curfrp->fr_parent == NULL || curfrp->fr_parent->fr_layout != layout) 1129 { 1130 // Need to create a new frame in the tree to make a branch. 1131 frp = ALLOC_CLEAR_ONE(frame_T); 1132 *frp = *curfrp; 1133 curfrp->fr_layout = layout; 1134 frp->fr_parent = curfrp; 1135 frp->fr_next = NULL; 1136 frp->fr_prev = NULL; 1137 curfrp->fr_child = frp; 1138 curfrp->fr_win = NULL; 1139 curfrp = frp; 1140 if (frp->fr_win != NULL) 1141 oldwin->w_frame = frp; 1142 else 1143 FOR_ALL_FRAMES(frp, frp->fr_child) 1144 frp->fr_parent = curfrp; 1145 } 1146 1147 if (new_wp == NULL) 1148 frp = wp->w_frame; 1149 else 1150 frp = new_wp->w_frame; 1151 frp->fr_parent = curfrp->fr_parent; 1152 1153 // Insert the new frame at the right place in the frame list. 1154 if (before) 1155 frame_insert(curfrp, frp); 1156 else 1157 frame_append(curfrp, frp); 1158 1159 // Set w_fraction now so that the cursor keeps the same relative 1160 // vertical position. 1161 if (!did_set_fraction) 1162 set_fraction(oldwin); 1163 wp->w_fraction = oldwin->w_fraction; 1164 1165 if (flags & WSP_VERT) 1166 { 1167 wp->w_p_scr = curwin->w_p_scr; 1168 1169 if (need_status) 1170 { 1171 win_new_height(oldwin, oldwin->w_height - 1); 1172 oldwin->w_status_height = need_status; 1173 } 1174 if (flags & (WSP_TOP | WSP_BOT)) 1175 { 1176 // set height and row of new window to full height 1177 wp->w_winrow = tabline_height(); 1178 win_new_height(wp, curfrp->fr_height - (p_ls > 0) 1179 - WINBAR_HEIGHT(wp)); 1180 wp->w_status_height = (p_ls > 0); 1181 } 1182 else 1183 { 1184 // height and row of new window is same as current window 1185 wp->w_winrow = oldwin->w_winrow; 1186 win_new_height(wp, VISIBLE_HEIGHT(oldwin)); 1187 wp->w_status_height = oldwin->w_status_height; 1188 } 1189 frp->fr_height = curfrp->fr_height; 1190 1191 // "new_size" of the current window goes to the new window, use 1192 // one column for the vertical separator 1193 win_new_width(wp, new_size); 1194 if (before) 1195 wp->w_vsep_width = 1; 1196 else 1197 { 1198 wp->w_vsep_width = oldwin->w_vsep_width; 1199 oldwin->w_vsep_width = 1; 1200 } 1201 if (flags & (WSP_TOP | WSP_BOT)) 1202 { 1203 if (flags & WSP_BOT) 1204 frame_add_vsep(curfrp); 1205 // Set width of neighbor frame 1206 frame_new_width(curfrp, curfrp->fr_width 1207 - (new_size + ((flags & WSP_TOP) != 0)), flags & WSP_TOP, 1208 FALSE); 1209 } 1210 else 1211 win_new_width(oldwin, oldwin->w_width - (new_size + 1)); 1212 if (before) // new window left of current one 1213 { 1214 wp->w_wincol = oldwin->w_wincol; 1215 oldwin->w_wincol += new_size + 1; 1216 } 1217 else // new window right of current one 1218 wp->w_wincol = oldwin->w_wincol + oldwin->w_width + 1; 1219 frame_fix_width(oldwin); 1220 frame_fix_width(wp); 1221 } 1222 else 1223 { 1224 // width and column of new window is same as current window 1225 if (flags & (WSP_TOP | WSP_BOT)) 1226 { 1227 wp->w_wincol = 0; 1228 win_new_width(wp, Columns); 1229 wp->w_vsep_width = 0; 1230 } 1231 else 1232 { 1233 wp->w_wincol = oldwin->w_wincol; 1234 win_new_width(wp, oldwin->w_width); 1235 wp->w_vsep_width = oldwin->w_vsep_width; 1236 } 1237 frp->fr_width = curfrp->fr_width; 1238 1239 // "new_size" of the current window goes to the new window, use 1240 // one row for the status line 1241 win_new_height(wp, new_size); 1242 if (flags & (WSP_TOP | WSP_BOT)) 1243 { 1244 int new_fr_height = curfrp->fr_height - new_size 1245 + WINBAR_HEIGHT(wp) ; 1246 1247 if (!((flags & WSP_BOT) && p_ls == 0)) 1248 new_fr_height -= STATUS_HEIGHT; 1249 frame_new_height(curfrp, new_fr_height, flags & WSP_TOP, FALSE); 1250 } 1251 else 1252 win_new_height(oldwin, oldwin_height - (new_size + STATUS_HEIGHT)); 1253 if (before) // new window above current one 1254 { 1255 wp->w_winrow = oldwin->w_winrow; 1256 wp->w_status_height = STATUS_HEIGHT; 1257 oldwin->w_winrow += wp->w_height + STATUS_HEIGHT; 1258 } 1259 else // new window below current one 1260 { 1261 wp->w_winrow = oldwin->w_winrow + VISIBLE_HEIGHT(oldwin) 1262 + STATUS_HEIGHT; 1263 wp->w_status_height = oldwin->w_status_height; 1264 if (!(flags & WSP_BOT)) 1265 oldwin->w_status_height = STATUS_HEIGHT; 1266 } 1267 if (flags & WSP_BOT) 1268 frame_add_statusline(curfrp); 1269 frame_fix_height(wp); 1270 frame_fix_height(oldwin); 1271 } 1272 1273 if (flags & (WSP_TOP | WSP_BOT)) 1274 (void)win_comp_pos(); 1275 1276 // Both windows need redrawing. Update all status lines, in case they 1277 // show something related to the window count or position. 1278 redraw_win_later(wp, NOT_VALID); 1279 redraw_win_later(oldwin, NOT_VALID); 1280 status_redraw_all(); 1281 1282 if (need_status) 1283 { 1284 msg_row = Rows - 1; 1285 msg_col = sc_col; 1286 msg_clr_eos_force(); // Old command/ruler may still be there 1287 comp_col(); 1288 msg_row = Rows - 1; 1289 msg_col = 0; // put position back at start of line 1290 } 1291 1292 /* 1293 * equalize the window sizes. 1294 */ 1295 if (do_equal || dir != 0) 1296 win_equal(wp, TRUE, 1297 (flags & WSP_VERT) ? (dir == 'v' ? 'b' : 'h') 1298 : dir == 'h' ? 'b' : 'v'); 1299 1300 // Don't change the window height/width to 'winheight' / 'winwidth' if a 1301 // size was given. 1302 if (flags & WSP_VERT) 1303 { 1304 i = p_wiw; 1305 if (size != 0) 1306 p_wiw = size; 1307 1308 # ifdef FEAT_GUI 1309 // When 'guioptions' includes 'L' or 'R' may have to add scrollbars. 1310 if (gui.in_use) 1311 gui_init_which_components(NULL); 1312 # endif 1313 } 1314 else 1315 { 1316 i = p_wh; 1317 if (size != 0) 1318 p_wh = size; 1319 } 1320 1321 #ifdef FEAT_JUMPLIST 1322 // Keep same changelist position in new window. 1323 wp->w_changelistidx = oldwin->w_changelistidx; 1324 #endif 1325 1326 /* 1327 * make the new window the current window 1328 */ 1329 win_enter_ext(wp, FALSE, FALSE, TRUE, TRUE, TRUE); 1330 if (flags & WSP_VERT) 1331 p_wiw = i; 1332 else 1333 p_wh = i; 1334 1335 return OK; 1336 } 1337 1338 1339 /* 1340 * Initialize window "newp" from window "oldp". 1341 * Used when splitting a window and when creating a new tab page. 1342 * The windows will both edit the same buffer. 1343 * WSP_NEWLOC may be specified in flags to prevent the location list from 1344 * being copied. 1345 */ 1346 static void 1347 win_init(win_T *newp, win_T *oldp, int flags UNUSED) 1348 { 1349 int i; 1350 1351 newp->w_buffer = oldp->w_buffer; 1352 #ifdef FEAT_SYN_HL 1353 newp->w_s = &(oldp->w_buffer->b_s); 1354 #endif 1355 oldp->w_buffer->b_nwindows++; 1356 newp->w_cursor = oldp->w_cursor; 1357 newp->w_valid = 0; 1358 newp->w_curswant = oldp->w_curswant; 1359 newp->w_set_curswant = oldp->w_set_curswant; 1360 newp->w_topline = oldp->w_topline; 1361 #ifdef FEAT_DIFF 1362 newp->w_topfill = oldp->w_topfill; 1363 #endif 1364 newp->w_leftcol = oldp->w_leftcol; 1365 newp->w_pcmark = oldp->w_pcmark; 1366 newp->w_prev_pcmark = oldp->w_prev_pcmark; 1367 newp->w_alt_fnum = oldp->w_alt_fnum; 1368 newp->w_wrow = oldp->w_wrow; 1369 newp->w_fraction = oldp->w_fraction; 1370 newp->w_prev_fraction_row = oldp->w_prev_fraction_row; 1371 #ifdef FEAT_JUMPLIST 1372 copy_jumplist(oldp, newp); 1373 #endif 1374 #ifdef FEAT_QUICKFIX 1375 if (flags & WSP_NEWLOC) 1376 { 1377 // Don't copy the location list. 1378 newp->w_llist = NULL; 1379 newp->w_llist_ref = NULL; 1380 } 1381 else 1382 copy_loclist_stack(oldp, newp); 1383 #endif 1384 newp->w_localdir = (oldp->w_localdir == NULL) 1385 ? NULL : vim_strsave(oldp->w_localdir); 1386 newp->w_prevdir = (oldp->w_prevdir == NULL) 1387 ? NULL : vim_strsave(oldp->w_prevdir); 1388 1389 // copy tagstack and folds 1390 for (i = 0; i < oldp->w_tagstacklen; i++) 1391 { 1392 taggy_T *tag = &newp->w_tagstack[i]; 1393 *tag = oldp->w_tagstack[i]; 1394 if (tag->tagname != NULL) 1395 tag->tagname = vim_strsave(tag->tagname); 1396 if (tag->user_data != NULL) 1397 tag->user_data = vim_strsave(tag->user_data); 1398 } 1399 newp->w_tagstackidx = oldp->w_tagstackidx; 1400 newp->w_tagstacklen = oldp->w_tagstacklen; 1401 #ifdef FEAT_FOLDING 1402 copyFoldingState(oldp, newp); 1403 #endif 1404 1405 win_init_some(newp, oldp); 1406 1407 #ifdef FEAT_SYN_HL 1408 check_colorcolumn(newp); 1409 #endif 1410 } 1411 1412 /* 1413 * Initialize window "newp" from window "old". 1414 * Only the essential things are copied. 1415 */ 1416 static void 1417 win_init_some(win_T *newp, win_T *oldp) 1418 { 1419 // Use the same argument list. 1420 newp->w_alist = oldp->w_alist; 1421 ++newp->w_alist->al_refcount; 1422 newp->w_arg_idx = oldp->w_arg_idx; 1423 1424 // copy options from existing window 1425 win_copy_options(oldp, newp); 1426 } 1427 1428 /* 1429 * Return TRUE if "win" is a global popup or a popup in the current tab page. 1430 */ 1431 int 1432 win_valid_popup(win_T *win UNUSED) 1433 { 1434 #ifdef FEAT_PROP_POPUP 1435 win_T *wp; 1436 1437 FOR_ALL_POPUPWINS(wp) 1438 if (wp == win) 1439 return TRUE; 1440 FOR_ALL_POPUPWINS_IN_TAB(curtab, wp) 1441 if (wp == win) 1442 return TRUE; 1443 #endif 1444 return FALSE; 1445 } 1446 1447 /* 1448 * Check if "win" is a pointer to an existing window in the current tab page. 1449 */ 1450 int 1451 win_valid(win_T *win) 1452 { 1453 win_T *wp; 1454 1455 if (win == NULL) 1456 return FALSE; 1457 FOR_ALL_WINDOWS(wp) 1458 if (wp == win) 1459 return TRUE; 1460 return win_valid_popup(win); 1461 } 1462 1463 /* 1464 * Find window "id" in the current tab page. 1465 * Also find popup windows. 1466 * Return NULL if not found. 1467 */ 1468 win_T * 1469 win_find_by_id(int id) 1470 { 1471 win_T *wp; 1472 1473 FOR_ALL_WINDOWS(wp) 1474 if (wp->w_id == id) 1475 return wp; 1476 #ifdef FEAT_PROP_POPUP 1477 FOR_ALL_POPUPWINS(wp) 1478 if (wp->w_id == id) 1479 return wp; 1480 FOR_ALL_POPUPWINS_IN_TAB(curtab, wp) 1481 if (wp->w_id == id) 1482 return wp; 1483 #endif 1484 return NULL; 1485 } 1486 1487 /* 1488 * Check if "win" is a pointer to an existing window in any tab page. 1489 */ 1490 int 1491 win_valid_any_tab(win_T *win) 1492 { 1493 win_T *wp; 1494 tabpage_T *tp; 1495 1496 if (win == NULL) 1497 return FALSE; 1498 FOR_ALL_TABPAGES(tp) 1499 { 1500 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 1501 { 1502 if (wp == win) 1503 return TRUE; 1504 } 1505 #ifdef FEAT_PROP_POPUP 1506 FOR_ALL_POPUPWINS_IN_TAB(tp, wp) 1507 if (wp == win) 1508 return TRUE; 1509 #endif 1510 } 1511 return win_valid_popup(win); 1512 } 1513 1514 /* 1515 * Return the number of windows. 1516 */ 1517 int 1518 win_count(void) 1519 { 1520 win_T *wp; 1521 int count = 0; 1522 1523 FOR_ALL_WINDOWS(wp) 1524 ++count; 1525 return count; 1526 } 1527 1528 /* 1529 * Make "count" windows on the screen. 1530 * Return actual number of windows on the screen. 1531 * Must be called when there is just one window, filling the whole screen 1532 * (excluding the command line). 1533 */ 1534 int 1535 make_windows( 1536 int count, 1537 int vertical UNUSED) // split windows vertically if TRUE 1538 { 1539 int maxcount; 1540 int todo; 1541 1542 if (vertical) 1543 { 1544 // Each windows needs at least 'winminwidth' lines and a separator 1545 // column. 1546 maxcount = (curwin->w_width + curwin->w_vsep_width 1547 - (p_wiw - p_wmw)) / (p_wmw + 1); 1548 } 1549 else 1550 { 1551 // Each window needs at least 'winminheight' lines and a status line. 1552 maxcount = (VISIBLE_HEIGHT(curwin) + curwin->w_status_height 1553 - (p_wh - p_wmh)) / (p_wmh + STATUS_HEIGHT); 1554 } 1555 1556 if (maxcount < 2) 1557 maxcount = 2; 1558 if (count > maxcount) 1559 count = maxcount; 1560 1561 /* 1562 * add status line now, otherwise first window will be too big 1563 */ 1564 if (count > 1) 1565 last_status(TRUE); 1566 1567 /* 1568 * Don't execute autocommands while creating the windows. Must do that 1569 * when putting the buffers in the windows. 1570 */ 1571 block_autocmds(); 1572 1573 // todo is number of windows left to create 1574 for (todo = count - 1; todo > 0; --todo) 1575 if (vertical) 1576 { 1577 if (win_split(curwin->w_width - (curwin->w_width - todo) 1578 / (todo + 1) - 1, WSP_VERT | WSP_ABOVE) == FAIL) 1579 break; 1580 } 1581 else 1582 { 1583 if (win_split(curwin->w_height - (curwin->w_height - todo 1584 * STATUS_HEIGHT) / (todo + 1) 1585 - STATUS_HEIGHT, WSP_ABOVE) == FAIL) 1586 break; 1587 } 1588 1589 unblock_autocmds(); 1590 1591 // return actual number of windows 1592 return (count - todo); 1593 } 1594 1595 /* 1596 * Exchange current and next window 1597 */ 1598 static void 1599 win_exchange(long Prenum) 1600 { 1601 frame_T *frp; 1602 frame_T *frp2; 1603 win_T *wp; 1604 win_T *wp2; 1605 int temp; 1606 1607 if (ERROR_IF_ANY_POPUP_WINDOW) 1608 return; 1609 if (ONE_WINDOW) // just one window 1610 { 1611 beep_flush(); 1612 return; 1613 } 1614 1615 #ifdef FEAT_GUI 1616 need_mouse_correct = TRUE; 1617 #endif 1618 1619 /* 1620 * find window to exchange with 1621 */ 1622 if (Prenum) 1623 { 1624 frp = curwin->w_frame->fr_parent->fr_child; 1625 while (frp != NULL && --Prenum > 0) 1626 frp = frp->fr_next; 1627 } 1628 else if (curwin->w_frame->fr_next != NULL) // Swap with next 1629 frp = curwin->w_frame->fr_next; 1630 else // Swap last window in row/col with previous 1631 frp = curwin->w_frame->fr_prev; 1632 1633 // We can only exchange a window with another window, not with a frame 1634 // containing windows. 1635 if (frp == NULL || frp->fr_win == NULL || frp->fr_win == curwin) 1636 return; 1637 wp = frp->fr_win; 1638 1639 /* 1640 * 1. remove curwin from the list. Remember after which window it was in wp2 1641 * 2. insert curwin before wp in the list 1642 * if wp != wp2 1643 * 3. remove wp from the list 1644 * 4. insert wp after wp2 1645 * 5. exchange the status line height and vsep width. 1646 */ 1647 wp2 = curwin->w_prev; 1648 frp2 = curwin->w_frame->fr_prev; 1649 if (wp->w_prev != curwin) 1650 { 1651 win_remove(curwin, NULL); 1652 frame_remove(curwin->w_frame); 1653 win_append(wp->w_prev, curwin); 1654 frame_insert(frp, curwin->w_frame); 1655 } 1656 if (wp != wp2) 1657 { 1658 win_remove(wp, NULL); 1659 frame_remove(wp->w_frame); 1660 win_append(wp2, wp); 1661 if (frp2 == NULL) 1662 frame_insert(wp->w_frame->fr_parent->fr_child, wp->w_frame); 1663 else 1664 frame_append(frp2, wp->w_frame); 1665 } 1666 temp = curwin->w_status_height; 1667 curwin->w_status_height = wp->w_status_height; 1668 wp->w_status_height = temp; 1669 temp = curwin->w_vsep_width; 1670 curwin->w_vsep_width = wp->w_vsep_width; 1671 wp->w_vsep_width = temp; 1672 1673 // If the windows are not in the same frame, exchange the sizes to avoid 1674 // messing up the window layout. Otherwise fix the frame sizes. 1675 if (curwin->w_frame->fr_parent != wp->w_frame->fr_parent) 1676 { 1677 temp = curwin->w_height; 1678 curwin->w_height = wp->w_height; 1679 wp->w_height = temp; 1680 temp = curwin->w_width; 1681 curwin->w_width = wp->w_width; 1682 wp->w_width = temp; 1683 } 1684 else 1685 { 1686 frame_fix_height(curwin); 1687 frame_fix_height(wp); 1688 frame_fix_width(curwin); 1689 frame_fix_width(wp); 1690 } 1691 1692 (void)win_comp_pos(); // recompute window positions 1693 1694 win_enter(wp, TRUE); 1695 redraw_all_later(NOT_VALID); 1696 } 1697 1698 /* 1699 * rotate windows: if upwards TRUE the second window becomes the first one 1700 * if upwards FALSE the first window becomes the second one 1701 */ 1702 static void 1703 win_rotate(int upwards, int count) 1704 { 1705 win_T *wp1; 1706 win_T *wp2; 1707 frame_T *frp; 1708 int n; 1709 1710 if (ONE_WINDOW) // nothing to do 1711 { 1712 beep_flush(); 1713 return; 1714 } 1715 1716 #ifdef FEAT_GUI 1717 need_mouse_correct = TRUE; 1718 #endif 1719 1720 // Check if all frames in this row/col have one window. 1721 FOR_ALL_FRAMES(frp, curwin->w_frame->fr_parent->fr_child) 1722 if (frp->fr_win == NULL) 1723 { 1724 emsg(_("E443: Cannot rotate when another window is split")); 1725 return; 1726 } 1727 1728 while (count--) 1729 { 1730 if (upwards) // first window becomes last window 1731 { 1732 // remove first window/frame from the list 1733 frp = curwin->w_frame->fr_parent->fr_child; 1734 wp1 = frp->fr_win; 1735 win_remove(wp1, NULL); 1736 frame_remove(frp); 1737 1738 // find last frame and append removed window/frame after it 1739 for ( ; frp->fr_next != NULL; frp = frp->fr_next) 1740 ; 1741 win_append(frp->fr_win, wp1); 1742 frame_append(frp, wp1->w_frame); 1743 1744 wp2 = frp->fr_win; // previously last window 1745 } 1746 else // last window becomes first window 1747 { 1748 // find last window/frame in the list and remove it 1749 for (frp = curwin->w_frame; frp->fr_next != NULL; 1750 frp = frp->fr_next) 1751 ; 1752 wp1 = frp->fr_win; 1753 wp2 = wp1->w_prev; // will become last window 1754 win_remove(wp1, NULL); 1755 frame_remove(frp); 1756 1757 // append the removed window/frame before the first in the list 1758 win_append(frp->fr_parent->fr_child->fr_win->w_prev, wp1); 1759 frame_insert(frp->fr_parent->fr_child, frp); 1760 } 1761 1762 // exchange status height and vsep width of old and new last window 1763 n = wp2->w_status_height; 1764 wp2->w_status_height = wp1->w_status_height; 1765 wp1->w_status_height = n; 1766 frame_fix_height(wp1); 1767 frame_fix_height(wp2); 1768 n = wp2->w_vsep_width; 1769 wp2->w_vsep_width = wp1->w_vsep_width; 1770 wp1->w_vsep_width = n; 1771 frame_fix_width(wp1); 1772 frame_fix_width(wp2); 1773 1774 // recompute w_winrow and w_wincol for all windows 1775 (void)win_comp_pos(); 1776 } 1777 1778 redraw_all_later(NOT_VALID); 1779 } 1780 1781 /* 1782 * Move the current window to the very top/bottom/left/right of the screen. 1783 */ 1784 static void 1785 win_totop(int size, int flags) 1786 { 1787 int dir; 1788 int height = curwin->w_height; 1789 1790 if (ONE_WINDOW) 1791 { 1792 beep_flush(); 1793 return; 1794 } 1795 if (check_split_disallowed() == FAIL) 1796 return; 1797 1798 // Remove the window and frame from the tree of frames. 1799 (void)winframe_remove(curwin, &dir, NULL); 1800 win_remove(curwin, NULL); 1801 last_status(FALSE); // may need to remove last status line 1802 (void)win_comp_pos(); // recompute window positions 1803 1804 // Split a window on the desired side and put the window there. 1805 (void)win_split_ins(size, flags, curwin, dir); 1806 if (!(flags & WSP_VERT)) 1807 { 1808 win_setheight(height); 1809 if (p_ea) 1810 win_equal(curwin, TRUE, 'v'); 1811 } 1812 1813 #if defined(FEAT_GUI) 1814 // When 'guioptions' includes 'L' or 'R' may have to remove or add 1815 // scrollbars. Have to update them anyway. 1816 gui_may_update_scrollbars(); 1817 #endif 1818 } 1819 1820 /* 1821 * Move window "win1" to below/right of "win2" and make "win1" the current 1822 * window. Only works within the same frame! 1823 */ 1824 void 1825 win_move_after(win_T *win1, win_T *win2) 1826 { 1827 int height; 1828 1829 // check if the arguments are reasonable 1830 if (win1 == win2) 1831 return; 1832 1833 // check if there is something to do 1834 if (win2->w_next != win1) 1835 { 1836 if (win1->w_frame->fr_parent != win2->w_frame->fr_parent) 1837 { 1838 iemsg("INTERNAL: trying to move a window into another frame"); 1839 return; 1840 } 1841 1842 // may need to move the status line/vertical separator of the last 1843 // window 1844 if (win1 == lastwin) 1845 { 1846 height = win1->w_prev->w_status_height; 1847 win1->w_prev->w_status_height = win1->w_status_height; 1848 win1->w_status_height = height; 1849 if (win1->w_prev->w_vsep_width == 1) 1850 { 1851 // Remove the vertical separator from the last-but-one window, 1852 // add it to the last window. Adjust the frame widths. 1853 win1->w_prev->w_vsep_width = 0; 1854 win1->w_prev->w_frame->fr_width -= 1; 1855 win1->w_vsep_width = 1; 1856 win1->w_frame->fr_width += 1; 1857 } 1858 } 1859 else if (win2 == lastwin) 1860 { 1861 height = win1->w_status_height; 1862 win1->w_status_height = win2->w_status_height; 1863 win2->w_status_height = height; 1864 if (win1->w_vsep_width == 1) 1865 { 1866 // Remove the vertical separator from win1, add it to the last 1867 // window, win2. Adjust the frame widths. 1868 win2->w_vsep_width = 1; 1869 win2->w_frame->fr_width += 1; 1870 win1->w_vsep_width = 0; 1871 win1->w_frame->fr_width -= 1; 1872 } 1873 } 1874 win_remove(win1, NULL); 1875 frame_remove(win1->w_frame); 1876 win_append(win2, win1); 1877 frame_append(win2->w_frame, win1->w_frame); 1878 1879 (void)win_comp_pos(); // recompute w_winrow for all windows 1880 redraw_later(NOT_VALID); 1881 } 1882 win_enter(win1, FALSE); 1883 } 1884 1885 /* 1886 * Make all windows the same height. 1887 * 'next_curwin' will soon be the current window, make sure it has enough 1888 * rows. 1889 */ 1890 void 1891 win_equal( 1892 win_T *next_curwin, // pointer to current window to be or NULL 1893 int current, // do only frame with current window 1894 int dir) // 'v' for vertically, 'h' for horizontally, 1895 // 'b' for both, 0 for using p_ead 1896 { 1897 if (dir == 0) 1898 dir = *p_ead; 1899 win_equal_rec(next_curwin == NULL ? curwin : next_curwin, current, 1900 topframe, dir, 0, tabline_height(), 1901 (int)Columns, topframe->fr_height); 1902 } 1903 1904 /* 1905 * Set a frame to a new position and height, spreading the available room 1906 * equally over contained frames. 1907 * The window "next_curwin" (if not NULL) should at least get the size from 1908 * 'winheight' and 'winwidth' if possible. 1909 */ 1910 static void 1911 win_equal_rec( 1912 win_T *next_curwin, // pointer to current window to be or NULL 1913 int current, // do only frame with current window 1914 frame_T *topfr, // frame to set size off 1915 int dir, // 'v', 'h' or 'b', see win_equal() 1916 int col, // horizontal position for frame 1917 int row, // vertical position for frame 1918 int width, // new width of frame 1919 int height) // new height of frame 1920 { 1921 int n, m; 1922 int extra_sep = 0; 1923 int wincount, totwincount = 0; 1924 frame_T *fr; 1925 int next_curwin_size = 0; 1926 int room = 0; 1927 int new_size; 1928 int has_next_curwin = 0; 1929 int hnc; 1930 1931 if (topfr->fr_layout == FR_LEAF) 1932 { 1933 // Set the width/height of this frame. 1934 // Redraw when size or position changes 1935 if (topfr->fr_height != height || topfr->fr_win->w_winrow != row 1936 || topfr->fr_width != width || topfr->fr_win->w_wincol != col 1937 ) 1938 { 1939 topfr->fr_win->w_winrow = row; 1940 frame_new_height(topfr, height, FALSE, FALSE); 1941 topfr->fr_win->w_wincol = col; 1942 frame_new_width(topfr, width, FALSE, FALSE); 1943 redraw_all_later(NOT_VALID); 1944 } 1945 } 1946 else if (topfr->fr_layout == FR_ROW) 1947 { 1948 topfr->fr_width = width; 1949 topfr->fr_height = height; 1950 1951 if (dir != 'v') // equalize frame widths 1952 { 1953 // Compute the maximum number of windows horizontally in this 1954 // frame. 1955 n = frame_minwidth(topfr, NOWIN); 1956 // add one for the rightmost window, it doesn't have a separator 1957 if (col + width == Columns) 1958 extra_sep = 1; 1959 else 1960 extra_sep = 0; 1961 totwincount = (n + extra_sep) / (p_wmw + 1); 1962 has_next_curwin = frame_has_win(topfr, next_curwin); 1963 1964 /* 1965 * Compute width for "next_curwin" window and room available for 1966 * other windows. 1967 * "m" is the minimal width when counting p_wiw for "next_curwin". 1968 */ 1969 m = frame_minwidth(topfr, next_curwin); 1970 room = width - m; 1971 if (room < 0) 1972 { 1973 next_curwin_size = p_wiw + room; 1974 room = 0; 1975 } 1976 else 1977 { 1978 next_curwin_size = -1; 1979 FOR_ALL_FRAMES(fr, topfr->fr_child) 1980 { 1981 // If 'winfixwidth' set keep the window width if 1982 // possible. 1983 // Watch out for this window being the next_curwin. 1984 if (frame_fixed_width(fr)) 1985 { 1986 n = frame_minwidth(fr, NOWIN); 1987 new_size = fr->fr_width; 1988 if (frame_has_win(fr, next_curwin)) 1989 { 1990 room += p_wiw - p_wmw; 1991 next_curwin_size = 0; 1992 if (new_size < p_wiw) 1993 new_size = p_wiw; 1994 } 1995 else 1996 // These windows don't use up room. 1997 totwincount -= (n + (fr->fr_next == NULL 1998 ? extra_sep : 0)) / (p_wmw + 1); 1999 room -= new_size - n; 2000 if (room < 0) 2001 { 2002 new_size += room; 2003 room = 0; 2004 } 2005 fr->fr_newwidth = new_size; 2006 } 2007 } 2008 if (next_curwin_size == -1) 2009 { 2010 if (!has_next_curwin) 2011 next_curwin_size = 0; 2012 else if (totwincount > 1 2013 && (room + (totwincount - 2)) 2014 / (totwincount - 1) > p_wiw) 2015 { 2016 // Can make all windows wider than 'winwidth', spread 2017 // the room equally. 2018 next_curwin_size = (room + p_wiw 2019 + (totwincount - 1) * p_wmw 2020 + (totwincount - 1)) / totwincount; 2021 room -= next_curwin_size - p_wiw; 2022 } 2023 else 2024 next_curwin_size = p_wiw; 2025 } 2026 } 2027 2028 if (has_next_curwin) 2029 --totwincount; // don't count curwin 2030 } 2031 2032 FOR_ALL_FRAMES(fr, topfr->fr_child) 2033 { 2034 wincount = 1; 2035 if (fr->fr_next == NULL) 2036 // last frame gets all that remains (avoid roundoff error) 2037 new_size = width; 2038 else if (dir == 'v') 2039 new_size = fr->fr_width; 2040 else if (frame_fixed_width(fr)) 2041 { 2042 new_size = fr->fr_newwidth; 2043 wincount = 0; // doesn't count as a sizeable window 2044 } 2045 else 2046 { 2047 // Compute the maximum number of windows horiz. in "fr". 2048 n = frame_minwidth(fr, NOWIN); 2049 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 2050 / (p_wmw + 1); 2051 m = frame_minwidth(fr, next_curwin); 2052 if (has_next_curwin) 2053 hnc = frame_has_win(fr, next_curwin); 2054 else 2055 hnc = FALSE; 2056 if (hnc) // don't count next_curwin 2057 --wincount; 2058 if (totwincount == 0) 2059 new_size = room; 2060 else 2061 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 2062 / totwincount; 2063 if (hnc) // add next_curwin size 2064 { 2065 next_curwin_size -= p_wiw - (m - n); 2066 new_size += next_curwin_size; 2067 room -= new_size - next_curwin_size; 2068 } 2069 else 2070 room -= new_size; 2071 new_size += n; 2072 } 2073 2074 // Skip frame that is full width when splitting or closing a 2075 // window, unless equalizing all frames. 2076 if (!current || dir != 'v' || topfr->fr_parent != NULL 2077 || (new_size != fr->fr_width) 2078 || frame_has_win(fr, next_curwin)) 2079 win_equal_rec(next_curwin, current, fr, dir, col, row, 2080 new_size, height); 2081 col += new_size; 2082 width -= new_size; 2083 totwincount -= wincount; 2084 } 2085 } 2086 else // topfr->fr_layout == FR_COL 2087 { 2088 topfr->fr_width = width; 2089 topfr->fr_height = height; 2090 2091 if (dir != 'h') // equalize frame heights 2092 { 2093 // Compute maximum number of windows vertically in this frame. 2094 n = frame_minheight(topfr, NOWIN); 2095 // add one for the bottom window if it doesn't have a statusline 2096 if (row + height == cmdline_row && p_ls == 0) 2097 extra_sep = 1; 2098 else 2099 extra_sep = 0; 2100 totwincount = (n + extra_sep) / (p_wmh + 1); 2101 has_next_curwin = frame_has_win(topfr, next_curwin); 2102 2103 /* 2104 * Compute height for "next_curwin" window and room available for 2105 * other windows. 2106 * "m" is the minimal height when counting p_wh for "next_curwin". 2107 */ 2108 m = frame_minheight(topfr, next_curwin); 2109 room = height - m; 2110 if (room < 0) 2111 { 2112 // The room is less then 'winheight', use all space for the 2113 // current window. 2114 next_curwin_size = p_wh + room; 2115 room = 0; 2116 } 2117 else 2118 { 2119 next_curwin_size = -1; 2120 FOR_ALL_FRAMES(fr, topfr->fr_child) 2121 { 2122 // If 'winfixheight' set keep the window height if 2123 // possible. 2124 // Watch out for this window being the next_curwin. 2125 if (frame_fixed_height(fr)) 2126 { 2127 n = frame_minheight(fr, NOWIN); 2128 new_size = fr->fr_height; 2129 if (frame_has_win(fr, next_curwin)) 2130 { 2131 room += p_wh - p_wmh; 2132 next_curwin_size = 0; 2133 if (new_size < p_wh) 2134 new_size = p_wh; 2135 } 2136 else 2137 // These windows don't use up room. 2138 totwincount -= (n + (fr->fr_next == NULL 2139 ? extra_sep : 0)) / (p_wmh + 1); 2140 room -= new_size - n; 2141 if (room < 0) 2142 { 2143 new_size += room; 2144 room = 0; 2145 } 2146 fr->fr_newheight = new_size; 2147 } 2148 } 2149 if (next_curwin_size == -1) 2150 { 2151 if (!has_next_curwin) 2152 next_curwin_size = 0; 2153 else if (totwincount > 1 2154 && (room + (totwincount - 2)) 2155 / (totwincount - 1) > p_wh) 2156 { 2157 // can make all windows higher than 'winheight', 2158 // spread the room equally. 2159 next_curwin_size = (room + p_wh 2160 + (totwincount - 1) * p_wmh 2161 + (totwincount - 1)) / totwincount; 2162 room -= next_curwin_size - p_wh; 2163 } 2164 else 2165 next_curwin_size = p_wh; 2166 } 2167 } 2168 2169 if (has_next_curwin) 2170 --totwincount; // don't count curwin 2171 } 2172 2173 FOR_ALL_FRAMES(fr, topfr->fr_child) 2174 { 2175 wincount = 1; 2176 if (fr->fr_next == NULL) 2177 // last frame gets all that remains (avoid roundoff error) 2178 new_size = height; 2179 else if (dir == 'h') 2180 new_size = fr->fr_height; 2181 else if (frame_fixed_height(fr)) 2182 { 2183 new_size = fr->fr_newheight; 2184 wincount = 0; // doesn't count as a sizeable window 2185 } 2186 else 2187 { 2188 // Compute the maximum number of windows vert. in "fr". 2189 n = frame_minheight(fr, NOWIN); 2190 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 2191 / (p_wmh + 1); 2192 m = frame_minheight(fr, next_curwin); 2193 if (has_next_curwin) 2194 hnc = frame_has_win(fr, next_curwin); 2195 else 2196 hnc = FALSE; 2197 if (hnc) // don't count next_curwin 2198 --wincount; 2199 if (totwincount == 0) 2200 new_size = room; 2201 else 2202 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 2203 / totwincount; 2204 if (hnc) // add next_curwin size 2205 { 2206 next_curwin_size -= p_wh - (m - n); 2207 new_size += next_curwin_size; 2208 room -= new_size - next_curwin_size; 2209 } 2210 else 2211 room -= new_size; 2212 new_size += n; 2213 } 2214 // Skip frame that is full width when splitting or closing a 2215 // window, unless equalizing all frames. 2216 if (!current || dir != 'h' || topfr->fr_parent != NULL 2217 || (new_size != fr->fr_height) 2218 || frame_has_win(fr, next_curwin)) 2219 win_equal_rec(next_curwin, current, fr, dir, col, row, 2220 width, new_size); 2221 row += new_size; 2222 height -= new_size; 2223 totwincount -= wincount; 2224 } 2225 } 2226 } 2227 2228 #ifdef FEAT_JOB_CHANNEL 2229 static void 2230 leaving_window(win_T *win) 2231 { 2232 // Only matters for a prompt window. 2233 if (!bt_prompt(win->w_buffer)) 2234 return; 2235 2236 // When leaving a prompt window stop Insert mode and perhaps restart 2237 // it when entering that window again. 2238 win->w_buffer->b_prompt_insert = restart_edit; 2239 if (restart_edit != 0 && mode_displayed) 2240 clear_cmdline = TRUE; // unshow mode later 2241 restart_edit = NUL; 2242 2243 // When leaving the window (or closing the window) was done from a 2244 // callback we need to break out of the Insert mode loop and restart Insert 2245 // mode when entering the window again. 2246 if (State & INSERT) 2247 { 2248 stop_insert_mode = TRUE; 2249 if (win->w_buffer->b_prompt_insert == NUL) 2250 win->w_buffer->b_prompt_insert = 'A'; 2251 } 2252 } 2253 2254 void 2255 entering_window(win_T *win) 2256 { 2257 // Only matters for a prompt window. 2258 if (!bt_prompt(win->w_buffer)) 2259 return; 2260 2261 // When switching to a prompt buffer that was in Insert mode, don't stop 2262 // Insert mode, it may have been set in leaving_window(). 2263 if (win->w_buffer->b_prompt_insert != NUL) 2264 stop_insert_mode = FALSE; 2265 2266 // When entering the prompt window restart Insert mode if we were in Insert 2267 // mode when we left it. 2268 restart_edit = win->w_buffer->b_prompt_insert; 2269 } 2270 #endif 2271 2272 /* 2273 * Close all windows for buffer "buf". 2274 */ 2275 void 2276 close_windows( 2277 buf_T *buf, 2278 int keep_curwin) // don't close "curwin" 2279 { 2280 win_T *wp; 2281 tabpage_T *tp, *nexttp; 2282 int h = tabline_height(); 2283 int count = tabpage_index(NULL); 2284 2285 ++RedrawingDisabled; 2286 2287 for (wp = firstwin; wp != NULL && !ONE_WINDOW; ) 2288 { 2289 if (wp->w_buffer == buf && (!keep_curwin || wp != curwin) 2290 && !(wp->w_closing || wp->w_buffer->b_locked > 0)) 2291 { 2292 if (win_close(wp, FALSE) == FAIL) 2293 // If closing the window fails give up, to avoid looping 2294 // forever. 2295 break; 2296 2297 // Start all over, autocommands may change the window layout. 2298 wp = firstwin; 2299 } 2300 else 2301 wp = wp->w_next; 2302 } 2303 2304 // Also check windows in other tab pages. 2305 for (tp = first_tabpage; tp != NULL; tp = nexttp) 2306 { 2307 nexttp = tp->tp_next; 2308 if (tp != curtab) 2309 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 2310 if (wp->w_buffer == buf 2311 && !(wp->w_closing || wp->w_buffer->b_locked > 0)) 2312 { 2313 win_close_othertab(wp, FALSE, tp); 2314 2315 // Start all over, the tab page may be closed and 2316 // autocommands may change the window layout. 2317 nexttp = first_tabpage; 2318 break; 2319 } 2320 } 2321 2322 --RedrawingDisabled; 2323 2324 if (count != tabpage_index(NULL)) 2325 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2326 2327 redraw_tabline = TRUE; 2328 if (h != tabline_height()) 2329 shell_new_rows(); 2330 } 2331 2332 /* 2333 * Return TRUE if the current window is the only window that exists (ignoring 2334 * "aucmd_win"). 2335 * Returns FALSE if there is a window, possibly in another tab page. 2336 */ 2337 static int 2338 last_window(void) 2339 { 2340 return (one_window() && first_tabpage->tp_next == NULL); 2341 } 2342 2343 /* 2344 * Return TRUE if there is only one window other than "aucmd_win" in the 2345 * current tab page. 2346 */ 2347 int 2348 one_window(void) 2349 { 2350 win_T *wp; 2351 int seen_one = FALSE; 2352 2353 FOR_ALL_WINDOWS(wp) 2354 { 2355 if (wp != aucmd_win) 2356 { 2357 if (seen_one) 2358 return FALSE; 2359 seen_one = TRUE; 2360 } 2361 } 2362 return TRUE; 2363 } 2364 2365 /* 2366 * Close the possibly last window in a tab page. 2367 * Returns TRUE when the window was closed already. 2368 */ 2369 static int 2370 close_last_window_tabpage( 2371 win_T *win, 2372 int free_buf, 2373 tabpage_T *prev_curtab) 2374 { 2375 if (ONE_WINDOW) 2376 { 2377 buf_T *old_curbuf = curbuf; 2378 2379 /* 2380 * Closing the last window in a tab page. First go to another tab 2381 * page and then close the window and the tab page. This avoids that 2382 * curwin and curtab are invalid while we are freeing memory, they may 2383 * be used in GUI events. 2384 * Don't trigger autocommands yet, they may use wrong values, so do 2385 * that below. 2386 */ 2387 goto_tabpage_tp(alt_tabpage(), FALSE, TRUE); 2388 redraw_tabline = TRUE; 2389 2390 // Safety check: Autocommands may have closed the window when jumping 2391 // to the other tab page. 2392 if (valid_tabpage(prev_curtab) && prev_curtab->tp_firstwin == win) 2393 { 2394 int h = tabline_height(); 2395 2396 win_close_othertab(win, free_buf, prev_curtab); 2397 if (h != tabline_height()) 2398 shell_new_rows(); 2399 } 2400 #ifdef FEAT_JOB_CHANNEL 2401 entering_window(curwin); 2402 #endif 2403 // Since goto_tabpage_tp above did not trigger *Enter autocommands, do 2404 // that now. 2405 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2406 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 2407 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 2408 if (old_curbuf != curbuf) 2409 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2410 return TRUE; 2411 } 2412 return FALSE; 2413 } 2414 2415 /* 2416 * Close the buffer of "win" and unload it if "action" is DOBUF_UNLOAD. 2417 * "action" can also be zero (do nothing) or DOBUF_WIPE. 2418 * "abort_if_last" is passed to close_buffer(): abort closing if all other 2419 * windows are closed. 2420 */ 2421 static void 2422 win_close_buffer(win_T *win, int action, int abort_if_last) 2423 { 2424 #ifdef FEAT_SYN_HL 2425 // Free independent synblock before the buffer is freed. 2426 if (win->w_buffer != NULL) 2427 reset_synblock(win); 2428 #endif 2429 2430 #ifdef FEAT_QUICKFIX 2431 // When the quickfix/location list window is closed, unlist the buffer. 2432 if (win->w_buffer != NULL && bt_quickfix(win->w_buffer)) 2433 win->w_buffer->b_p_bl = FALSE; 2434 #endif 2435 2436 // Close the link to the buffer. 2437 if (win->w_buffer != NULL) 2438 { 2439 bufref_T bufref; 2440 2441 set_bufref(&bufref, curbuf); 2442 win->w_closing = TRUE; 2443 close_buffer(win, win->w_buffer, action, abort_if_last, FALSE); 2444 if (win_valid_any_tab(win)) 2445 win->w_closing = FALSE; 2446 // Make sure curbuf is valid. It can become invalid if 'bufhidden' is 2447 // "wipe". 2448 if (!bufref_valid(&bufref)) 2449 curbuf = firstbuf; 2450 } 2451 } 2452 2453 /* 2454 * Close window "win". Only works for the current tab page. 2455 * If "free_buf" is TRUE related buffer may be unloaded. 2456 * 2457 * Called by :quit, :close, :xit, :wq and findtag(). 2458 * Returns FAIL when the window was not closed. 2459 */ 2460 int 2461 win_close(win_T *win, int free_buf) 2462 { 2463 win_T *wp; 2464 int other_buffer = FALSE; 2465 int close_curwin = FALSE; 2466 int dir; 2467 int help_window = FALSE; 2468 tabpage_T *prev_curtab = curtab; 2469 frame_T *win_frame = win->w_frame->fr_parent; 2470 #ifdef FEAT_DIFF 2471 int had_diffmode = win->w_p_diff; 2472 #endif 2473 2474 #if defined(FEAT_TERMINAL) && defined(FEAT_PROP_POPUP) 2475 // Can close a popup window with a terminal if the job has finished. 2476 if (may_close_term_popup() == OK) 2477 return OK; 2478 #endif 2479 if (ERROR_IF_ANY_POPUP_WINDOW) 2480 return FAIL; 2481 2482 if (last_window()) 2483 { 2484 emsg(_("E444: Cannot close last window")); 2485 return FAIL; 2486 } 2487 2488 if (win->w_closing || (win->w_buffer != NULL 2489 && win->w_buffer->b_locked > 0)) 2490 return FAIL; // window is already being closed 2491 if (win_unlisted(win)) 2492 { 2493 emsg(_(e_autocmd_close)); 2494 return FAIL; 2495 } 2496 if ((firstwin == aucmd_win || lastwin == aucmd_win) && one_window()) 2497 { 2498 emsg(_("E814: Cannot close window, only autocmd window would remain")); 2499 return FAIL; 2500 } 2501 2502 // When closing the last window in a tab page first go to another tab page 2503 // and then close the window and the tab page to avoid that curwin and 2504 // curtab are invalid while we are freeing memory. 2505 if (close_last_window_tabpage(win, free_buf, prev_curtab)) 2506 return FAIL; 2507 2508 // When closing the help window, try restoring a snapshot after closing 2509 // the window. Otherwise clear the snapshot, it's now invalid. 2510 if (bt_help(win->w_buffer)) 2511 help_window = TRUE; 2512 else 2513 clear_snapshot(curtab, SNAP_HELP_IDX); 2514 2515 if (win == curwin) 2516 { 2517 #ifdef FEAT_JOB_CHANNEL 2518 leaving_window(curwin); 2519 #endif 2520 /* 2521 * Guess which window is going to be the new current window. 2522 * This may change because of the autocommands (sigh). 2523 */ 2524 wp = frame2win(win_altframe(win, NULL)); 2525 2526 /* 2527 * Be careful: If autocommands delete the window or cause this window 2528 * to be the last one left, return now. 2529 */ 2530 if (wp->w_buffer != curbuf) 2531 { 2532 other_buffer = TRUE; 2533 win->w_closing = TRUE; 2534 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 2535 if (!win_valid(win)) 2536 return FAIL; 2537 win->w_closing = FALSE; 2538 if (last_window()) 2539 return FAIL; 2540 } 2541 win->w_closing = TRUE; 2542 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 2543 if (!win_valid(win)) 2544 return FAIL; 2545 win->w_closing = FALSE; 2546 if (last_window()) 2547 return FAIL; 2548 #ifdef FEAT_EVAL 2549 // autocmds may abort script processing 2550 if (aborting()) 2551 return FAIL; 2552 #endif 2553 } 2554 2555 #ifdef FEAT_GUI 2556 // Avoid trouble with scrollbars that are going to be deleted in 2557 // win_free(). 2558 if (gui.in_use) 2559 out_flush(); 2560 #endif 2561 2562 #ifdef FEAT_PROP_POPUP 2563 if (popup_win_closed(win) && !win_valid(win)) 2564 return FAIL; 2565 #endif 2566 win_close_buffer(win, free_buf ? DOBUF_UNLOAD : 0, TRUE); 2567 2568 if (only_one_window() && win_valid(win) && win->w_buffer == NULL 2569 && (last_window() || curtab != prev_curtab 2570 || close_last_window_tabpage(win, free_buf, prev_curtab))) 2571 { 2572 // Autocommands have closed all windows, quit now. Restore 2573 // curwin->w_buffer, otherwise writing viminfo may fail. 2574 if (curwin->w_buffer == NULL) 2575 curwin->w_buffer = curbuf; 2576 getout(0); 2577 } 2578 2579 // Autocommands may have moved to another tab page. 2580 if (curtab != prev_curtab && win_valid_any_tab(win) 2581 && win->w_buffer == NULL) 2582 { 2583 // Need to close the window anyway, since the buffer is NULL. 2584 win_close_othertab(win, FALSE, prev_curtab); 2585 return FAIL; 2586 } 2587 2588 // Autocommands may have closed the window already or closed the only 2589 // other window. 2590 if (!win_valid(win) || last_window() 2591 || close_last_window_tabpage(win, free_buf, prev_curtab)) 2592 return FAIL; 2593 2594 // Now we are really going to close the window. Disallow any autocommand 2595 // to split a window to avoid trouble. 2596 // Also bail out of parse_queued_messages() to avoid it tries to update the 2597 // screen. 2598 ++split_disallowed; 2599 #ifdef MESSAGE_QUEUE 2600 ++dont_parse_messages; 2601 #endif 2602 2603 // Free the memory used for the window and get the window that received 2604 // the screen space. 2605 wp = win_free_mem(win, &dir, NULL); 2606 2607 // Make sure curwin isn't invalid. It can cause severe trouble when 2608 // printing an error message. For win_equal() curbuf needs to be valid 2609 // too. 2610 if (win == curwin) 2611 { 2612 curwin = wp; 2613 #ifdef FEAT_QUICKFIX 2614 if (wp->w_p_pvw || bt_quickfix(wp->w_buffer)) 2615 { 2616 /* 2617 * If the cursor goes to the preview or the quickfix window, try 2618 * finding another window to go to. 2619 */ 2620 for (;;) 2621 { 2622 if (wp->w_next == NULL) 2623 wp = firstwin; 2624 else 2625 wp = wp->w_next; 2626 if (wp == curwin) 2627 break; 2628 if (!wp->w_p_pvw && !bt_quickfix(wp->w_buffer)) 2629 { 2630 curwin = wp; 2631 break; 2632 } 2633 } 2634 } 2635 #endif 2636 curbuf = curwin->w_buffer; 2637 close_curwin = TRUE; 2638 2639 // The cursor position may be invalid if the buffer changed after last 2640 // using the window. 2641 check_cursor(); 2642 } 2643 if (p_ea && (*p_ead == 'b' || *p_ead == dir)) 2644 // If the frame of the closed window contains the new current window, 2645 // only resize that frame. Otherwise resize all windows. 2646 win_equal(curwin, curwin->w_frame->fr_parent == win_frame, dir); 2647 else 2648 win_comp_pos(); 2649 if (close_curwin) 2650 { 2651 win_enter_ext(wp, FALSE, TRUE, FALSE, TRUE, TRUE); 2652 if (other_buffer) 2653 // careful: after this wp and win may be invalid! 2654 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2655 } 2656 2657 --split_disallowed; 2658 #ifdef MESSAGE_QUEUE 2659 --dont_parse_messages; 2660 #endif 2661 2662 /* 2663 * If last window has a status line now and we don't want one, 2664 * remove the status line. 2665 */ 2666 last_status(FALSE); 2667 2668 // After closing the help window, try restoring the window layout from 2669 // before it was opened. 2670 if (help_window) 2671 restore_snapshot(SNAP_HELP_IDX, close_curwin); 2672 2673 #ifdef FEAT_DIFF 2674 // If the window had 'diff' set and now there is only one window left in 2675 // the tab page with 'diff' set, and "closeoff" is in 'diffopt', then 2676 // execute ":diffoff!". 2677 if (diffopt_closeoff() && had_diffmode && curtab == prev_curtab) 2678 { 2679 int diffcount = 0; 2680 win_T *dwin; 2681 2682 FOR_ALL_WINDOWS(dwin) 2683 if (dwin->w_p_diff) 2684 ++diffcount; 2685 if (diffcount == 1) 2686 do_cmdline_cmd((char_u *)"diffoff!"); 2687 } 2688 #endif 2689 2690 #if defined(FEAT_GUI) 2691 // When 'guioptions' includes 'L' or 'R' may have to remove scrollbars. 2692 if (gui.in_use && !win_hasvertsplit()) 2693 gui_init_which_components(NULL); 2694 #endif 2695 2696 redraw_all_later(NOT_VALID); 2697 return OK; 2698 } 2699 2700 /* 2701 * Close window "win" in tab page "tp", which is not the current tab page. 2702 * This may be the last window in that tab page and result in closing the tab, 2703 * thus "tp" may become invalid! 2704 * Caller must check if buffer is hidden and whether the tabline needs to be 2705 * updated. 2706 */ 2707 void 2708 win_close_othertab(win_T *win, int free_buf, tabpage_T *tp) 2709 { 2710 win_T *wp; 2711 int dir; 2712 tabpage_T *ptp = NULL; 2713 int free_tp = FALSE; 2714 2715 // Get here with win->w_buffer == NULL when win_close() detects the tab 2716 // page changed. 2717 if (win->w_closing || (win->w_buffer != NULL 2718 && win->w_buffer->b_locked > 0)) 2719 return; // window is already being closed 2720 2721 if (win->w_buffer != NULL) 2722 // Close the link to the buffer. 2723 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, 2724 FALSE, FALSE); 2725 2726 // Careful: Autocommands may have closed the tab page or made it the 2727 // current tab page. 2728 for (ptp = first_tabpage; ptp != NULL && ptp != tp; ptp = ptp->tp_next) 2729 ; 2730 if (ptp == NULL || tp == curtab) 2731 return; 2732 2733 // Autocommands may have closed the window already. 2734 for (wp = tp->tp_firstwin; wp != NULL && wp != win; wp = wp->w_next) 2735 ; 2736 if (wp == NULL) 2737 return; 2738 2739 // When closing the last window in a tab page remove the tab page. 2740 if (tp->tp_firstwin == tp->tp_lastwin) 2741 { 2742 if (tp == first_tabpage) 2743 first_tabpage = tp->tp_next; 2744 else 2745 { 2746 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tp; 2747 ptp = ptp->tp_next) 2748 ; 2749 if (ptp == NULL) 2750 { 2751 internal_error("win_close_othertab()"); 2752 return; 2753 } 2754 ptp->tp_next = tp->tp_next; 2755 } 2756 free_tp = TRUE; 2757 } 2758 2759 // Free the memory used for the window. 2760 win_free_mem(win, &dir, tp); 2761 2762 if (free_tp) 2763 free_tabpage(tp); 2764 } 2765 2766 /* 2767 * Free the memory used for a window. 2768 * Returns a pointer to the window that got the freed up space. 2769 */ 2770 static win_T * 2771 win_free_mem( 2772 win_T *win, 2773 int *dirp, // set to 'v' or 'h' for direction if 'ea' 2774 tabpage_T *tp) // tab page "win" is in, NULL for current 2775 { 2776 frame_T *frp; 2777 win_T *wp; 2778 tabpage_T *win_tp = tp == NULL ? curtab : tp; 2779 2780 // Remove the window and its frame from the tree of frames. 2781 frp = win->w_frame; 2782 wp = winframe_remove(win, dirp, tp); 2783 vim_free(frp); 2784 win_free(win, tp); 2785 2786 // When deleting the current window in the tab, select a new current 2787 // window. 2788 if (win == win_tp->tp_curwin) 2789 win_tp->tp_curwin = wp; 2790 2791 return wp; 2792 } 2793 2794 #if defined(EXITFREE) || defined(PROTO) 2795 void 2796 win_free_all(void) 2797 { 2798 int dummy; 2799 2800 while (first_tabpage->tp_next != NULL) 2801 tabpage_close(TRUE); 2802 2803 if (aucmd_win != NULL) 2804 { 2805 (void)win_free_mem(aucmd_win, &dummy, NULL); 2806 aucmd_win = NULL; 2807 } 2808 2809 while (firstwin != NULL) 2810 (void)win_free_mem(firstwin, &dummy, NULL); 2811 2812 // No window should be used after this. Set curwin to NULL to crash 2813 // instead of using freed memory. 2814 curwin = NULL; 2815 } 2816 #endif 2817 2818 /* 2819 * Remove a window and its frame from the tree of frames. 2820 * Returns a pointer to the window that got the freed up space. 2821 */ 2822 win_T * 2823 winframe_remove( 2824 win_T *win, 2825 int *dirp UNUSED, // set to 'v' or 'h' for direction if 'ea' 2826 tabpage_T *tp) // tab page "win" is in, NULL for current 2827 { 2828 frame_T *frp, *frp2, *frp3; 2829 frame_T *frp_close = win->w_frame; 2830 win_T *wp; 2831 2832 /* 2833 * If there is only one window there is nothing to remove. 2834 */ 2835 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 2836 return NULL; 2837 2838 /* 2839 * Remove the window from its frame. 2840 */ 2841 frp2 = win_altframe(win, tp); 2842 wp = frame2win(frp2); 2843 2844 // Remove this frame from the list of frames. 2845 frame_remove(frp_close); 2846 2847 if (frp_close->fr_parent->fr_layout == FR_COL) 2848 { 2849 // When 'winfixheight' is set, try to find another frame in the column 2850 // (as close to the closed frame as possible) to distribute the height 2851 // to. 2852 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfh) 2853 { 2854 frp = frp_close->fr_prev; 2855 frp3 = frp_close->fr_next; 2856 while (frp != NULL || frp3 != NULL) 2857 { 2858 if (frp != NULL) 2859 { 2860 if (!frame_fixed_height(frp)) 2861 { 2862 frp2 = frp; 2863 wp = frame2win(frp2); 2864 break; 2865 } 2866 frp = frp->fr_prev; 2867 } 2868 if (frp3 != NULL) 2869 { 2870 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfh) 2871 { 2872 frp2 = frp3; 2873 wp = frp3->fr_win; 2874 break; 2875 } 2876 frp3 = frp3->fr_next; 2877 } 2878 } 2879 } 2880 frame_new_height(frp2, frp2->fr_height + frp_close->fr_height, 2881 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2882 *dirp = 'v'; 2883 } 2884 else 2885 { 2886 // When 'winfixwidth' is set, try to find another frame in the column 2887 // (as close to the closed frame as possible) to distribute the width 2888 // to. 2889 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfw) 2890 { 2891 frp = frp_close->fr_prev; 2892 frp3 = frp_close->fr_next; 2893 while (frp != NULL || frp3 != NULL) 2894 { 2895 if (frp != NULL) 2896 { 2897 if (!frame_fixed_width(frp)) 2898 { 2899 frp2 = frp; 2900 wp = frame2win(frp2); 2901 break; 2902 } 2903 frp = frp->fr_prev; 2904 } 2905 if (frp3 != NULL) 2906 { 2907 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfw) 2908 { 2909 frp2 = frp3; 2910 wp = frp3->fr_win; 2911 break; 2912 } 2913 frp3 = frp3->fr_next; 2914 } 2915 } 2916 } 2917 frame_new_width(frp2, frp2->fr_width + frp_close->fr_width, 2918 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2919 *dirp = 'h'; 2920 } 2921 2922 // If rows/columns go to a window below/right its positions need to be 2923 // updated. Can only be done after the sizes have been updated. 2924 if (frp2 == frp_close->fr_next) 2925 { 2926 int row = win->w_winrow; 2927 int col = win->w_wincol; 2928 2929 frame_comp_pos(frp2, &row, &col); 2930 } 2931 2932 if (frp2->fr_next == NULL && frp2->fr_prev == NULL) 2933 { 2934 // There is no other frame in this list, move its info to the parent 2935 // and remove it. 2936 frp2->fr_parent->fr_layout = frp2->fr_layout; 2937 frp2->fr_parent->fr_child = frp2->fr_child; 2938 FOR_ALL_FRAMES(frp, frp2->fr_child) 2939 frp->fr_parent = frp2->fr_parent; 2940 frp2->fr_parent->fr_win = frp2->fr_win; 2941 if (frp2->fr_win != NULL) 2942 frp2->fr_win->w_frame = frp2->fr_parent; 2943 frp = frp2->fr_parent; 2944 if (topframe->fr_child == frp2) 2945 topframe->fr_child = frp; 2946 vim_free(frp2); 2947 2948 frp2 = frp->fr_parent; 2949 if (frp2 != NULL && frp2->fr_layout == frp->fr_layout) 2950 { 2951 // The frame above the parent has the same layout, have to merge 2952 // the frames into this list. 2953 if (frp2->fr_child == frp) 2954 frp2->fr_child = frp->fr_child; 2955 frp->fr_child->fr_prev = frp->fr_prev; 2956 if (frp->fr_prev != NULL) 2957 frp->fr_prev->fr_next = frp->fr_child; 2958 for (frp3 = frp->fr_child; ; frp3 = frp3->fr_next) 2959 { 2960 frp3->fr_parent = frp2; 2961 if (frp3->fr_next == NULL) 2962 { 2963 frp3->fr_next = frp->fr_next; 2964 if (frp->fr_next != NULL) 2965 frp->fr_next->fr_prev = frp3; 2966 break; 2967 } 2968 } 2969 if (topframe->fr_child == frp) 2970 topframe->fr_child = frp2; 2971 vim_free(frp); 2972 } 2973 } 2974 2975 return wp; 2976 } 2977 2978 /* 2979 * Return a pointer to the frame that will receive the empty screen space that 2980 * is left over after "win" is closed. 2981 * 2982 * If 'splitbelow' or 'splitright' is set, the space goes above or to the left 2983 * by default. Otherwise, the free space goes below or to the right. The 2984 * result is that opening a window and then immediately closing it will 2985 * preserve the initial window layout. The 'wfh' and 'wfw' settings are 2986 * respected when possible. 2987 */ 2988 static frame_T * 2989 win_altframe( 2990 win_T *win, 2991 tabpage_T *tp) // tab page "win" is in, NULL for current 2992 { 2993 frame_T *frp; 2994 frame_T *other_fr, *target_fr; 2995 2996 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 2997 return alt_tabpage()->tp_curwin->w_frame; 2998 2999 frp = win->w_frame; 3000 3001 if (frp->fr_prev == NULL) 3002 return frp->fr_next; 3003 if (frp->fr_next == NULL) 3004 return frp->fr_prev; 3005 3006 // By default the next window will get the space that was abandoned by this 3007 // window 3008 target_fr = frp->fr_next; 3009 other_fr = frp->fr_prev; 3010 3011 // If this is part of a column of windows and 'splitbelow' is true then the 3012 // previous window will get the space. 3013 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_COL && p_sb) 3014 { 3015 target_fr = frp->fr_prev; 3016 other_fr = frp->fr_next; 3017 } 3018 3019 // If this is part of a row of windows, and 'splitright' is true then the 3020 // previous window will get the space. 3021 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW && p_spr) 3022 { 3023 target_fr = frp->fr_prev; 3024 other_fr = frp->fr_next; 3025 } 3026 3027 // If 'wfh' or 'wfw' is set for the target and not for the alternate 3028 // window, reverse the selection. 3029 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW) 3030 { 3031 if (frame_fixed_width(target_fr) && !frame_fixed_width(other_fr)) 3032 target_fr = other_fr; 3033 } 3034 else 3035 { 3036 if (frame_fixed_height(target_fr) && !frame_fixed_height(other_fr)) 3037 target_fr = other_fr; 3038 } 3039 3040 return target_fr; 3041 } 3042 3043 /* 3044 * Return the tabpage that will be used if the current one is closed. 3045 */ 3046 static tabpage_T * 3047 alt_tabpage(void) 3048 { 3049 tabpage_T *tp; 3050 3051 // Use the next tab page if possible. 3052 if (curtab->tp_next != NULL) 3053 return curtab->tp_next; 3054 3055 // Find the last but one tab page. 3056 for (tp = first_tabpage; tp->tp_next != curtab; tp = tp->tp_next) 3057 ; 3058 return tp; 3059 } 3060 3061 /* 3062 * Find the left-upper window in frame "frp". 3063 */ 3064 static win_T * 3065 frame2win(frame_T *frp) 3066 { 3067 while (frp->fr_win == NULL) 3068 frp = frp->fr_child; 3069 return frp->fr_win; 3070 } 3071 3072 /* 3073 * Return TRUE if frame "frp" contains window "wp". 3074 */ 3075 static int 3076 frame_has_win(frame_T *frp, win_T *wp) 3077 { 3078 frame_T *p; 3079 3080 if (frp->fr_layout == FR_LEAF) 3081 return frp->fr_win == wp; 3082 3083 FOR_ALL_FRAMES(p, frp->fr_child) 3084 if (frame_has_win(p, wp)) 3085 return TRUE; 3086 return FALSE; 3087 } 3088 3089 /* 3090 * Set a new height for a frame. Recursively sets the height for contained 3091 * frames and windows. Caller must take care of positions. 3092 */ 3093 static void 3094 frame_new_height( 3095 frame_T *topfrp, 3096 int height, 3097 int topfirst, // resize topmost contained frame first 3098 int wfh) // obey 'winfixheight' when there is a choice; 3099 // may cause the height not to be set 3100 { 3101 frame_T *frp; 3102 int extra_lines; 3103 int h; 3104 3105 if (topfrp->fr_win != NULL) 3106 { 3107 // Simple case: just one window. 3108 win_new_height(topfrp->fr_win, 3109 height - topfrp->fr_win->w_status_height 3110 - WINBAR_HEIGHT(topfrp->fr_win)); 3111 } 3112 else if (topfrp->fr_layout == FR_ROW) 3113 { 3114 do 3115 { 3116 // All frames in this row get the same new height. 3117 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3118 { 3119 frame_new_height(frp, height, topfirst, wfh); 3120 if (frp->fr_height > height) 3121 { 3122 // Could not fit the windows, make the whole row higher. 3123 height = frp->fr_height; 3124 break; 3125 } 3126 } 3127 } 3128 while (frp != NULL); 3129 } 3130 else // fr_layout == FR_COL 3131 { 3132 // Complicated case: Resize a column of frames. Resize the bottom 3133 // frame first, frames above that when needed. 3134 3135 frp = topfrp->fr_child; 3136 if (wfh) 3137 // Advance past frames with one window with 'wfh' set. 3138 while (frame_fixed_height(frp)) 3139 { 3140 frp = frp->fr_next; 3141 if (frp == NULL) 3142 return; // no frame without 'wfh', give up 3143 } 3144 if (!topfirst) 3145 { 3146 // Find the bottom frame of this column 3147 while (frp->fr_next != NULL) 3148 frp = frp->fr_next; 3149 if (wfh) 3150 // Advance back for frames with one window with 'wfh' set. 3151 while (frame_fixed_height(frp)) 3152 frp = frp->fr_prev; 3153 } 3154 3155 extra_lines = height - topfrp->fr_height; 3156 if (extra_lines < 0) 3157 { 3158 // reduce height of contained frames, bottom or top frame first 3159 while (frp != NULL) 3160 { 3161 h = frame_minheight(frp, NULL); 3162 if (frp->fr_height + extra_lines < h) 3163 { 3164 extra_lines += frp->fr_height - h; 3165 frame_new_height(frp, h, topfirst, wfh); 3166 } 3167 else 3168 { 3169 frame_new_height(frp, frp->fr_height + extra_lines, 3170 topfirst, wfh); 3171 break; 3172 } 3173 if (topfirst) 3174 { 3175 do 3176 frp = frp->fr_next; 3177 while (wfh && frp != NULL && frame_fixed_height(frp)); 3178 } 3179 else 3180 { 3181 do 3182 frp = frp->fr_prev; 3183 while (wfh && frp != NULL && frame_fixed_height(frp)); 3184 } 3185 // Increase "height" if we could not reduce enough frames. 3186 if (frp == NULL) 3187 height -= extra_lines; 3188 } 3189 } 3190 else if (extra_lines > 0) 3191 { 3192 // increase height of bottom or top frame 3193 frame_new_height(frp, frp->fr_height + extra_lines, topfirst, wfh); 3194 } 3195 } 3196 topfrp->fr_height = height; 3197 } 3198 3199 /* 3200 * Return TRUE if height of frame "frp" should not be changed because of 3201 * the 'winfixheight' option. 3202 */ 3203 static int 3204 frame_fixed_height(frame_T *frp) 3205 { 3206 // frame with one window: fixed height if 'winfixheight' set. 3207 if (frp->fr_win != NULL) 3208 return frp->fr_win->w_p_wfh; 3209 3210 if (frp->fr_layout == FR_ROW) 3211 { 3212 // The frame is fixed height if one of the frames in the row is fixed 3213 // height. 3214 FOR_ALL_FRAMES(frp, frp->fr_child) 3215 if (frame_fixed_height(frp)) 3216 return TRUE; 3217 return FALSE; 3218 } 3219 3220 // frp->fr_layout == FR_COL: The frame is fixed height if all of the 3221 // frames in the row are fixed height. 3222 FOR_ALL_FRAMES(frp, frp->fr_child) 3223 if (!frame_fixed_height(frp)) 3224 return FALSE; 3225 return TRUE; 3226 } 3227 3228 /* 3229 * Return TRUE if width of frame "frp" should not be changed because of 3230 * the 'winfixwidth' option. 3231 */ 3232 static int 3233 frame_fixed_width(frame_T *frp) 3234 { 3235 // frame with one window: fixed width if 'winfixwidth' set. 3236 if (frp->fr_win != NULL) 3237 return frp->fr_win->w_p_wfw; 3238 3239 if (frp->fr_layout == FR_COL) 3240 { 3241 // The frame is fixed width if one of the frames in the row is fixed 3242 // width. 3243 FOR_ALL_FRAMES(frp, frp->fr_child) 3244 if (frame_fixed_width(frp)) 3245 return TRUE; 3246 return FALSE; 3247 } 3248 3249 // frp->fr_layout == FR_ROW: The frame is fixed width if all of the 3250 // frames in the row are fixed width. 3251 FOR_ALL_FRAMES(frp, frp->fr_child) 3252 if (!frame_fixed_width(frp)) 3253 return FALSE; 3254 return TRUE; 3255 } 3256 3257 /* 3258 * Add a status line to windows at the bottom of "frp". 3259 * Note: Does not check if there is room! 3260 */ 3261 static void 3262 frame_add_statusline(frame_T *frp) 3263 { 3264 win_T *wp; 3265 3266 if (frp->fr_layout == FR_LEAF) 3267 { 3268 wp = frp->fr_win; 3269 if (wp->w_status_height == 0) 3270 { 3271 if (wp->w_height > 0) // don't make it negative 3272 --wp->w_height; 3273 wp->w_status_height = STATUS_HEIGHT; 3274 } 3275 } 3276 else if (frp->fr_layout == FR_ROW) 3277 { 3278 // Handle all the frames in the row. 3279 FOR_ALL_FRAMES(frp, frp->fr_child) 3280 frame_add_statusline(frp); 3281 } 3282 else // frp->fr_layout == FR_COL 3283 { 3284 // Only need to handle the last frame in the column. 3285 for (frp = frp->fr_child; frp->fr_next != NULL; frp = frp->fr_next) 3286 ; 3287 frame_add_statusline(frp); 3288 } 3289 } 3290 3291 /* 3292 * Set width of a frame. Handles recursively going through contained frames. 3293 * May remove separator line for windows at the right side (for win_close()). 3294 */ 3295 static void 3296 frame_new_width( 3297 frame_T *topfrp, 3298 int width, 3299 int leftfirst, // resize leftmost contained frame first 3300 int wfw) // obey 'winfixwidth' when there is a choice; 3301 // may cause the width not to be set 3302 { 3303 frame_T *frp; 3304 int extra_cols; 3305 int w; 3306 win_T *wp; 3307 3308 if (topfrp->fr_layout == FR_LEAF) 3309 { 3310 // Simple case: just one window. 3311 wp = topfrp->fr_win; 3312 // Find out if there are any windows right of this one. 3313 for (frp = topfrp; frp->fr_parent != NULL; frp = frp->fr_parent) 3314 if (frp->fr_parent->fr_layout == FR_ROW && frp->fr_next != NULL) 3315 break; 3316 if (frp->fr_parent == NULL) 3317 wp->w_vsep_width = 0; 3318 win_new_width(wp, width - wp->w_vsep_width); 3319 } 3320 else if (topfrp->fr_layout == FR_COL) 3321 { 3322 do 3323 { 3324 // All frames in this column get the same new width. 3325 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3326 { 3327 frame_new_width(frp, width, leftfirst, wfw); 3328 if (frp->fr_width > width) 3329 { 3330 // Could not fit the windows, make whole column wider. 3331 width = frp->fr_width; 3332 break; 3333 } 3334 } 3335 } while (frp != NULL); 3336 } 3337 else // fr_layout == FR_ROW 3338 { 3339 // Complicated case: Resize a row of frames. Resize the rightmost 3340 // frame first, frames left of it when needed. 3341 3342 frp = topfrp->fr_child; 3343 if (wfw) 3344 // Advance past frames with one window with 'wfw' set. 3345 while (frame_fixed_width(frp)) 3346 { 3347 frp = frp->fr_next; 3348 if (frp == NULL) 3349 return; // no frame without 'wfw', give up 3350 } 3351 if (!leftfirst) 3352 { 3353 // Find the rightmost frame of this row 3354 while (frp->fr_next != NULL) 3355 frp = frp->fr_next; 3356 if (wfw) 3357 // Advance back for frames with one window with 'wfw' set. 3358 while (frame_fixed_width(frp)) 3359 frp = frp->fr_prev; 3360 } 3361 3362 extra_cols = width - topfrp->fr_width; 3363 if (extra_cols < 0) 3364 { 3365 // reduce frame width, rightmost frame first 3366 while (frp != NULL) 3367 { 3368 w = frame_minwidth(frp, NULL); 3369 if (frp->fr_width + extra_cols < w) 3370 { 3371 extra_cols += frp->fr_width - w; 3372 frame_new_width(frp, w, leftfirst, wfw); 3373 } 3374 else 3375 { 3376 frame_new_width(frp, frp->fr_width + extra_cols, 3377 leftfirst, wfw); 3378 break; 3379 } 3380 if (leftfirst) 3381 { 3382 do 3383 frp = frp->fr_next; 3384 while (wfw && frp != NULL && frame_fixed_width(frp)); 3385 } 3386 else 3387 { 3388 do 3389 frp = frp->fr_prev; 3390 while (wfw && frp != NULL && frame_fixed_width(frp)); 3391 } 3392 // Increase "width" if we could not reduce enough frames. 3393 if (frp == NULL) 3394 width -= extra_cols; 3395 } 3396 } 3397 else if (extra_cols > 0) 3398 { 3399 // increase width of rightmost frame 3400 frame_new_width(frp, frp->fr_width + extra_cols, leftfirst, wfw); 3401 } 3402 } 3403 topfrp->fr_width = width; 3404 } 3405 3406 /* 3407 * Add the vertical separator to windows at the right side of "frp". 3408 * Note: Does not check if there is room! 3409 */ 3410 static void 3411 frame_add_vsep(frame_T *frp) 3412 { 3413 win_T *wp; 3414 3415 if (frp->fr_layout == FR_LEAF) 3416 { 3417 wp = frp->fr_win; 3418 if (wp->w_vsep_width == 0) 3419 { 3420 if (wp->w_width > 0) // don't make it negative 3421 --wp->w_width; 3422 wp->w_vsep_width = 1; 3423 } 3424 } 3425 else if (frp->fr_layout == FR_COL) 3426 { 3427 // Handle all the frames in the column. 3428 FOR_ALL_FRAMES(frp, frp->fr_child) 3429 frame_add_vsep(frp); 3430 } 3431 else // frp->fr_layout == FR_ROW 3432 { 3433 // Only need to handle the last frame in the row. 3434 frp = frp->fr_child; 3435 while (frp->fr_next != NULL) 3436 frp = frp->fr_next; 3437 frame_add_vsep(frp); 3438 } 3439 } 3440 3441 /* 3442 * Set frame width from the window it contains. 3443 */ 3444 static void 3445 frame_fix_width(win_T *wp) 3446 { 3447 wp->w_frame->fr_width = wp->w_width + wp->w_vsep_width; 3448 } 3449 3450 /* 3451 * Set frame height from the window it contains. 3452 */ 3453 static void 3454 frame_fix_height(win_T *wp) 3455 { 3456 wp->w_frame->fr_height = VISIBLE_HEIGHT(wp) + wp->w_status_height; 3457 } 3458 3459 /* 3460 * Compute the minimal height for frame "topfrp". 3461 * Uses the 'winminheight' option. 3462 * When "next_curwin" isn't NULL, use p_wh for this window. 3463 * When "next_curwin" is NOWIN, don't use at least one line for the current 3464 * window. 3465 */ 3466 static int 3467 frame_minheight(frame_T *topfrp, win_T *next_curwin) 3468 { 3469 frame_T *frp; 3470 int m; 3471 int n; 3472 3473 if (topfrp->fr_win != NULL) 3474 { 3475 if (topfrp->fr_win == next_curwin) 3476 m = p_wh + topfrp->fr_win->w_status_height; 3477 else 3478 { 3479 // window: minimal height of the window plus status line 3480 m = p_wmh + topfrp->fr_win->w_status_height; 3481 if (topfrp->fr_win == curwin && next_curwin == NULL) 3482 { 3483 // Current window is minimal one line high and WinBar is 3484 // visible. 3485 if (p_wmh == 0) 3486 ++m; 3487 m += WINBAR_HEIGHT(curwin); 3488 } 3489 } 3490 } 3491 else if (topfrp->fr_layout == FR_ROW) 3492 { 3493 // get the minimal height from each frame in this row 3494 m = 0; 3495 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3496 { 3497 n = frame_minheight(frp, next_curwin); 3498 if (n > m) 3499 m = n; 3500 } 3501 } 3502 else 3503 { 3504 // Add up the minimal heights for all frames in this column. 3505 m = 0; 3506 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3507 m += frame_minheight(frp, next_curwin); 3508 } 3509 3510 return m; 3511 } 3512 3513 /* 3514 * Compute the minimal width for frame "topfrp". 3515 * When "next_curwin" isn't NULL, use p_wiw for this window. 3516 * When "next_curwin" is NOWIN, don't use at least one column for the current 3517 * window. 3518 */ 3519 static int 3520 frame_minwidth( 3521 frame_T *topfrp, 3522 win_T *next_curwin) // use p_wh and p_wiw for next_curwin 3523 { 3524 frame_T *frp; 3525 int m, n; 3526 3527 if (topfrp->fr_win != NULL) 3528 { 3529 if (topfrp->fr_win == next_curwin) 3530 m = p_wiw + topfrp->fr_win->w_vsep_width; 3531 else 3532 { 3533 // window: minimal width of the window plus separator column 3534 m = p_wmw + topfrp->fr_win->w_vsep_width; 3535 // Current window is minimal one column wide 3536 if (p_wmw == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3537 ++m; 3538 } 3539 } 3540 else if (topfrp->fr_layout == FR_COL) 3541 { 3542 // get the minimal width from each frame in this column 3543 m = 0; 3544 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3545 { 3546 n = frame_minwidth(frp, next_curwin); 3547 if (n > m) 3548 m = n; 3549 } 3550 } 3551 else 3552 { 3553 // Add up the minimal widths for all frames in this row. 3554 m = 0; 3555 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3556 m += frame_minwidth(frp, next_curwin); 3557 } 3558 3559 return m; 3560 } 3561 3562 3563 /* 3564 * Try to close all windows except current one. 3565 * Buffers in the other windows become hidden if 'hidden' is set, or '!' is 3566 * used and the buffer was modified. 3567 * 3568 * Used by ":bdel" and ":only". 3569 */ 3570 void 3571 close_others( 3572 int message, 3573 int forceit) // always hide all other windows 3574 { 3575 win_T *wp; 3576 win_T *nextwp; 3577 int r; 3578 3579 if (one_window()) 3580 { 3581 if (message && !autocmd_busy) 3582 msg(_(m_onlyone)); 3583 return; 3584 } 3585 3586 // Be very careful here: autocommands may change the window layout. 3587 for (wp = firstwin; win_valid(wp); wp = nextwp) 3588 { 3589 nextwp = wp->w_next; 3590 if (wp != curwin) // don't close current window 3591 { 3592 3593 // Check if it's allowed to abandon this window 3594 r = can_abandon(wp->w_buffer, forceit); 3595 if (!win_valid(wp)) // autocommands messed wp up 3596 { 3597 nextwp = firstwin; 3598 continue; 3599 } 3600 if (!r) 3601 { 3602 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 3603 if (message && (p_confirm 3604 || (cmdmod.cmod_flags & CMOD_CONFIRM)) && p_write) 3605 { 3606 dialog_changed(wp->w_buffer, FALSE); 3607 if (!win_valid(wp)) // autocommands messed wp up 3608 { 3609 nextwp = firstwin; 3610 continue; 3611 } 3612 } 3613 if (bufIsChanged(wp->w_buffer)) 3614 #endif 3615 continue; 3616 } 3617 win_close(wp, !buf_hide(wp->w_buffer) 3618 && !bufIsChanged(wp->w_buffer)); 3619 } 3620 } 3621 3622 if (message && !ONE_WINDOW) 3623 emsg(_("E445: Other window contains changes")); 3624 } 3625 3626 static void 3627 win_init_empty(win_T *wp) 3628 { 3629 redraw_win_later(wp, NOT_VALID); 3630 wp->w_lines_valid = 0; 3631 wp->w_cursor.lnum = 1; 3632 wp->w_curswant = wp->w_cursor.col = 0; 3633 wp->w_cursor.coladd = 0; 3634 wp->w_pcmark.lnum = 1; // pcmark not cleared but set to line 1 3635 wp->w_pcmark.col = 0; 3636 wp->w_prev_pcmark.lnum = 0; 3637 wp->w_prev_pcmark.col = 0; 3638 wp->w_topline = 1; 3639 #ifdef FEAT_DIFF 3640 wp->w_topfill = 0; 3641 #endif 3642 wp->w_botline = 2; 3643 #if defined(FEAT_SYN_HL) || defined(FEAT_SPELL) 3644 wp->w_s = &wp->w_buffer->b_s; 3645 #endif 3646 } 3647 3648 /* 3649 * Init the current window "curwin". 3650 * Called when a new file is being edited. 3651 */ 3652 void 3653 curwin_init(void) 3654 { 3655 win_init_empty(curwin); 3656 } 3657 3658 /* 3659 * Allocate the first window and put an empty buffer in it. 3660 * Called from main(). 3661 * Return FAIL when something goes wrong (out of memory). 3662 */ 3663 int 3664 win_alloc_first(void) 3665 { 3666 if (win_alloc_firstwin(NULL) == FAIL) 3667 return FAIL; 3668 3669 first_tabpage = alloc_tabpage(); 3670 if (first_tabpage == NULL) 3671 return FAIL; 3672 first_tabpage->tp_topframe = topframe; 3673 curtab = first_tabpage; 3674 curtab->tp_firstwin = firstwin; 3675 curtab->tp_lastwin = lastwin; 3676 curtab->tp_curwin = curwin; 3677 3678 return OK; 3679 } 3680 3681 /* 3682 * Allocate and init a window that is not a regular window. 3683 * This can only be done after the first window is fully initialized, thus it 3684 * can't be in win_alloc_first(). 3685 */ 3686 win_T * 3687 win_alloc_popup_win(void) 3688 { 3689 win_T *wp; 3690 3691 wp = win_alloc(NULL, TRUE); 3692 if (wp != NULL) 3693 { 3694 // We need to initialize options with something, using the current 3695 // window makes most sense. 3696 win_init_some(wp, curwin); 3697 3698 RESET_BINDING(wp); 3699 new_frame(wp); 3700 } 3701 return wp; 3702 } 3703 3704 /* 3705 * Initialize window "wp" to display buffer "buf". 3706 */ 3707 void 3708 win_init_popup_win(win_T *wp, buf_T *buf) 3709 { 3710 wp->w_buffer = buf; 3711 ++buf->b_nwindows; 3712 win_init_empty(wp); // set cursor and topline to safe values 3713 3714 // Make sure w_localdir and globaldir are NULL to avoid a chdir() in 3715 // win_enter_ext(). 3716 VIM_CLEAR(wp->w_localdir); 3717 } 3718 3719 /* 3720 * Allocate the first window or the first window in a new tab page. 3721 * When "oldwin" is NULL create an empty buffer for it. 3722 * When "oldwin" is not NULL copy info from it to the new window. 3723 * Return FAIL when something goes wrong (out of memory). 3724 */ 3725 static int 3726 win_alloc_firstwin(win_T *oldwin) 3727 { 3728 curwin = win_alloc(NULL, FALSE); 3729 if (oldwin == NULL) 3730 { 3731 // Very first window, need to create an empty buffer for it and 3732 // initialize from scratch. 3733 curbuf = buflist_new(NULL, NULL, 1L, BLN_LISTED); 3734 if (curwin == NULL || curbuf == NULL) 3735 return FAIL; 3736 curwin->w_buffer = curbuf; 3737 #ifdef FEAT_SYN_HL 3738 curwin->w_s = &(curbuf->b_s); 3739 #endif 3740 curbuf->b_nwindows = 1; // there is one window 3741 curwin->w_alist = &global_alist; 3742 curwin_init(); // init current window 3743 } 3744 else 3745 { 3746 // First window in new tab page, initialize it from "oldwin". 3747 win_init(curwin, oldwin, 0); 3748 3749 // We don't want cursor- and scroll-binding in the first window. 3750 RESET_BINDING(curwin); 3751 } 3752 3753 new_frame(curwin); 3754 if (curwin->w_frame == NULL) 3755 return FAIL; 3756 topframe = curwin->w_frame; 3757 topframe->fr_width = Columns; 3758 topframe->fr_height = Rows - p_ch; 3759 3760 return OK; 3761 } 3762 3763 /* 3764 * Create a frame for window "wp". 3765 */ 3766 static void 3767 new_frame(win_T *wp) 3768 { 3769 frame_T *frp = ALLOC_CLEAR_ONE(frame_T); 3770 3771 wp->w_frame = frp; 3772 if (frp != NULL) 3773 { 3774 frp->fr_layout = FR_LEAF; 3775 frp->fr_win = wp; 3776 } 3777 } 3778 3779 /* 3780 * Initialize the window and frame size to the maximum. 3781 */ 3782 void 3783 win_init_size(void) 3784 { 3785 firstwin->w_height = ROWS_AVAIL; 3786 topframe->fr_height = ROWS_AVAIL; 3787 firstwin->w_width = Columns; 3788 topframe->fr_width = Columns; 3789 } 3790 3791 /* 3792 * Allocate a new tabpage_T and init the values. 3793 * Returns NULL when out of memory. 3794 */ 3795 static tabpage_T * 3796 alloc_tabpage(void) 3797 { 3798 tabpage_T *tp; 3799 # ifdef FEAT_GUI 3800 int i; 3801 # endif 3802 3803 3804 tp = ALLOC_CLEAR_ONE(tabpage_T); 3805 if (tp == NULL) 3806 return NULL; 3807 3808 # ifdef FEAT_EVAL 3809 // init t: variables 3810 tp->tp_vars = dict_alloc(); 3811 if (tp->tp_vars == NULL) 3812 { 3813 vim_free(tp); 3814 return NULL; 3815 } 3816 init_var_dict(tp->tp_vars, &tp->tp_winvar, VAR_SCOPE); 3817 # endif 3818 3819 # ifdef FEAT_GUI 3820 for (i = 0; i < 3; i++) 3821 tp->tp_prev_which_scrollbars[i] = -1; 3822 # endif 3823 # ifdef FEAT_DIFF 3824 tp->tp_diff_invalid = TRUE; 3825 # endif 3826 tp->tp_ch_used = p_ch; 3827 3828 return tp; 3829 } 3830 3831 void 3832 free_tabpage(tabpage_T *tp) 3833 { 3834 int idx; 3835 3836 # ifdef FEAT_DIFF 3837 diff_clear(tp); 3838 # endif 3839 # ifdef FEAT_PROP_POPUP 3840 while (tp->tp_first_popupwin != NULL) 3841 popup_close_tabpage(tp, tp->tp_first_popupwin->w_id, TRUE); 3842 #endif 3843 for (idx = 0; idx < SNAP_COUNT; ++idx) 3844 clear_snapshot(tp, idx); 3845 #ifdef FEAT_EVAL 3846 vars_clear(&tp->tp_vars->dv_hashtab); // free all t: variables 3847 hash_init(&tp->tp_vars->dv_hashtab); 3848 unref_var_dict(tp->tp_vars); 3849 #endif 3850 3851 if (tp == lastused_tabpage) 3852 lastused_tabpage = NULL; 3853 3854 vim_free(tp->tp_localdir); 3855 vim_free(tp->tp_prevdir); 3856 3857 #ifdef FEAT_PYTHON 3858 python_tabpage_free(tp); 3859 #endif 3860 3861 #ifdef FEAT_PYTHON3 3862 python3_tabpage_free(tp); 3863 #endif 3864 3865 vim_free(tp); 3866 } 3867 3868 /* 3869 * Create a new Tab page with one window. 3870 * It will edit the current buffer, like after ":split". 3871 * When "after" is 0 put it just after the current Tab page. 3872 * Otherwise put it just before tab page "after". 3873 * Return FAIL or OK. 3874 */ 3875 int 3876 win_new_tabpage(int after) 3877 { 3878 tabpage_T *tp = curtab; 3879 tabpage_T *prev_tp = curtab; 3880 tabpage_T *newtp; 3881 int n; 3882 3883 newtp = alloc_tabpage(); 3884 if (newtp == NULL) 3885 return FAIL; 3886 3887 // Remember the current windows in this Tab page. 3888 if (leave_tabpage(curbuf, TRUE) == FAIL) 3889 { 3890 vim_free(newtp); 3891 return FAIL; 3892 } 3893 curtab = newtp; 3894 3895 newtp->tp_localdir = (tp->tp_localdir == NULL) 3896 ? NULL : vim_strsave(tp->tp_localdir); 3897 // Create a new empty window. 3898 if (win_alloc_firstwin(tp->tp_curwin) == OK) 3899 { 3900 // Make the new Tab page the new topframe. 3901 if (after == 1) 3902 { 3903 // New tab page becomes the first one. 3904 newtp->tp_next = first_tabpage; 3905 first_tabpage = newtp; 3906 } 3907 else 3908 { 3909 if (after > 0) 3910 { 3911 // Put new tab page before tab page "after". 3912 n = 2; 3913 for (tp = first_tabpage; tp->tp_next != NULL 3914 && n < after; tp = tp->tp_next) 3915 ++n; 3916 } 3917 newtp->tp_next = tp->tp_next; 3918 tp->tp_next = newtp; 3919 } 3920 newtp->tp_firstwin = newtp->tp_lastwin = newtp->tp_curwin = curwin; 3921 3922 win_init_size(); 3923 firstwin->w_winrow = tabline_height(); 3924 win_comp_scroll(curwin); 3925 3926 newtp->tp_topframe = topframe; 3927 last_status(FALSE); 3928 3929 lastused_tabpage = prev_tp; 3930 3931 #if defined(FEAT_GUI) 3932 // When 'guioptions' includes 'L' or 'R' may have to remove or add 3933 // scrollbars. Have to update them anyway. 3934 gui_may_update_scrollbars(); 3935 #endif 3936 #ifdef FEAT_JOB_CHANNEL 3937 entering_window(curwin); 3938 #endif 3939 3940 redraw_all_later(NOT_VALID); 3941 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 3942 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 3943 apply_autocmds(EVENT_TABNEW, NULL, NULL, FALSE, curbuf); 3944 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3945 return OK; 3946 } 3947 3948 // Failed, get back the previous Tab page 3949 enter_tabpage(curtab, curbuf, TRUE, TRUE); 3950 return FAIL; 3951 } 3952 3953 /* 3954 * Open a new tab page if ":tab cmd" was used. It will edit the same buffer, 3955 * like with ":split". 3956 * Returns OK if a new tab page was created, FAIL otherwise. 3957 */ 3958 static int 3959 may_open_tabpage(void) 3960 { 3961 int n = (cmdmod.cmod_tab == 0) 3962 ? postponed_split_tab : cmdmod.cmod_tab; 3963 3964 if (n != 0) 3965 { 3966 cmdmod.cmod_tab = 0; // reset it to avoid doing it twice 3967 postponed_split_tab = 0; 3968 return win_new_tabpage(n); 3969 } 3970 return FAIL; 3971 } 3972 3973 /* 3974 * Create up to "maxcount" tabpages with empty windows. 3975 * Returns the number of resulting tab pages. 3976 */ 3977 int 3978 make_tabpages(int maxcount) 3979 { 3980 int count = maxcount; 3981 int todo; 3982 3983 // Limit to 'tabpagemax' tabs. 3984 if (count > p_tpm) 3985 count = p_tpm; 3986 3987 /* 3988 * Don't execute autocommands while creating the tab pages. Must do that 3989 * when putting the buffers in the windows. 3990 */ 3991 block_autocmds(); 3992 3993 for (todo = count - 1; todo > 0; --todo) 3994 if (win_new_tabpage(0) == FAIL) 3995 break; 3996 3997 unblock_autocmds(); 3998 3999 // return actual number of tab pages 4000 return (count - todo); 4001 } 4002 4003 /* 4004 * Return TRUE when "tpc" points to a valid tab page. 4005 */ 4006 int 4007 valid_tabpage(tabpage_T *tpc) 4008 { 4009 tabpage_T *tp; 4010 4011 FOR_ALL_TABPAGES(tp) 4012 if (tp == tpc) 4013 return TRUE; 4014 return FALSE; 4015 } 4016 4017 /* 4018 * Return TRUE when "tpc" points to a valid tab page and at least one window is 4019 * valid. 4020 */ 4021 int 4022 valid_tabpage_win(tabpage_T *tpc) 4023 { 4024 tabpage_T *tp; 4025 win_T *wp; 4026 4027 FOR_ALL_TABPAGES(tp) 4028 { 4029 if (tp == tpc) 4030 { 4031 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 4032 { 4033 if (win_valid_any_tab(wp)) 4034 return TRUE; 4035 } 4036 return FALSE; 4037 } 4038 } 4039 // shouldn't happen 4040 return FALSE; 4041 } 4042 4043 /* 4044 * Close tabpage "tab", assuming it has no windows in it. 4045 * There must be another tabpage or this will crash. 4046 */ 4047 void 4048 close_tabpage(tabpage_T *tab) 4049 { 4050 tabpage_T *ptp; 4051 4052 if (tab == first_tabpage) 4053 { 4054 first_tabpage = tab->tp_next; 4055 ptp = first_tabpage; 4056 } 4057 else 4058 { 4059 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tab; 4060 ptp = ptp->tp_next) 4061 ; 4062 assert(ptp != NULL); 4063 ptp->tp_next = tab->tp_next; 4064 } 4065 4066 goto_tabpage_tp(ptp, FALSE, FALSE); 4067 free_tabpage(tab); 4068 } 4069 4070 /* 4071 * Find tab page "n" (first one is 1). Returns NULL when not found. 4072 */ 4073 tabpage_T * 4074 find_tabpage(int n) 4075 { 4076 tabpage_T *tp; 4077 int i = 1; 4078 4079 if (n == 0) 4080 return curtab; 4081 4082 for (tp = first_tabpage; tp != NULL && i != n; tp = tp->tp_next) 4083 ++i; 4084 return tp; 4085 } 4086 4087 /* 4088 * Get index of tab page "tp". First one has index 1. 4089 * When not found returns number of tab pages plus one. 4090 */ 4091 int 4092 tabpage_index(tabpage_T *ftp) 4093 { 4094 int i = 1; 4095 tabpage_T *tp; 4096 4097 for (tp = first_tabpage; tp != NULL && tp != ftp; tp = tp->tp_next) 4098 ++i; 4099 return i; 4100 } 4101 4102 /* 4103 * Prepare for leaving the current tab page. 4104 * When autocommands change "curtab" we don't leave the tab page and return 4105 * FAIL. 4106 * Careful: When OK is returned need to get a new tab page very very soon! 4107 */ 4108 static int 4109 leave_tabpage( 4110 buf_T *new_curbuf UNUSED, // what is going to be the new curbuf, 4111 // NULL if unknown 4112 int trigger_leave_autocmds UNUSED) 4113 { 4114 tabpage_T *tp = curtab; 4115 4116 #ifdef FEAT_JOB_CHANNEL 4117 leaving_window(curwin); 4118 #endif 4119 reset_VIsual_and_resel(); // stop Visual mode 4120 if (trigger_leave_autocmds) 4121 { 4122 if (new_curbuf != curbuf) 4123 { 4124 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4125 if (curtab != tp) 4126 return FAIL; 4127 } 4128 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4129 if (curtab != tp) 4130 return FAIL; 4131 apply_autocmds(EVENT_TABLEAVE, NULL, NULL, FALSE, curbuf); 4132 if (curtab != tp) 4133 return FAIL; 4134 } 4135 #if defined(FEAT_GUI) 4136 // Remove the scrollbars. They may be added back later. 4137 if (gui.in_use) 4138 gui_remove_scrollbars(); 4139 #endif 4140 tp->tp_curwin = curwin; 4141 tp->tp_prevwin = prevwin; 4142 tp->tp_firstwin = firstwin; 4143 tp->tp_lastwin = lastwin; 4144 tp->tp_old_Rows = Rows; 4145 tp->tp_old_Columns = Columns; 4146 firstwin = NULL; 4147 lastwin = NULL; 4148 return OK; 4149 } 4150 4151 /* 4152 * Start using tab page "tp". 4153 * Only to be used after leave_tabpage() or freeing the current tab page. 4154 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4155 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4156 */ 4157 static void 4158 enter_tabpage( 4159 tabpage_T *tp, 4160 buf_T *old_curbuf UNUSED, 4161 int trigger_enter_autocmds, 4162 int trigger_leave_autocmds) 4163 { 4164 int row; 4165 int old_off = tp->tp_firstwin->w_winrow; 4166 win_T *next_prevwin = tp->tp_prevwin; 4167 tabpage_T *last_tab = curtab; 4168 4169 curtab = tp; 4170 firstwin = tp->tp_firstwin; 4171 lastwin = tp->tp_lastwin; 4172 topframe = tp->tp_topframe; 4173 4174 // We would like doing the TabEnter event first, but we don't have a 4175 // valid current window yet, which may break some commands. 4176 // This triggers autocommands, thus may make "tp" invalid. 4177 win_enter_ext(tp->tp_curwin, FALSE, TRUE, FALSE, 4178 trigger_enter_autocmds, trigger_leave_autocmds); 4179 prevwin = next_prevwin; 4180 4181 last_status(FALSE); // status line may appear or disappear 4182 row = win_comp_pos(); // recompute w_winrow for all windows 4183 #ifdef FEAT_DIFF 4184 diff_need_scrollbind = TRUE; 4185 #endif 4186 4187 // The tabpage line may have appeared or disappeared, may need to resize 4188 // the frames for that. When the Vim window was resized need to update 4189 // frame sizes too. Use the stored value of p_ch, so that it can be 4190 // different for each tab page. 4191 if (p_ch != curtab->tp_ch_used) 4192 clear_cmdline = TRUE; 4193 p_ch = curtab->tp_ch_used; 4194 4195 // When cmdheight is changed in a tab page with '<C-w>-', cmdline_row is 4196 // changed but p_ch and tp_ch_used are not changed. Thus we also need to 4197 // check cmdline_row. 4198 if ((row < cmdline_row) && (cmdline_row <= Rows - p_ch)) 4199 clear_cmdline = TRUE; 4200 4201 if (curtab->tp_old_Rows != Rows || (old_off != firstwin->w_winrow 4202 #ifdef FEAT_GUI_TABLINE 4203 && !gui_use_tabline() 4204 #endif 4205 )) 4206 shell_new_rows(); 4207 if (curtab->tp_old_Columns != Columns && starting == 0) 4208 shell_new_columns(); // update window widths 4209 4210 lastused_tabpage = last_tab; 4211 4212 #if defined(FEAT_GUI) 4213 // When 'guioptions' includes 'L' or 'R' may have to remove or add 4214 // scrollbars. Have to update them anyway. 4215 gui_may_update_scrollbars(); 4216 #endif 4217 4218 // Apply autocommands after updating the display, when 'rows' and 4219 // 'columns' have been set correctly. 4220 if (trigger_enter_autocmds) 4221 { 4222 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 4223 if (old_curbuf != curbuf) 4224 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4225 } 4226 4227 redraw_all_later(NOT_VALID); 4228 } 4229 4230 /* 4231 * Go to tab page "n". For ":tab N" and "Ngt". 4232 * When "n" is 9999 go to the last tab page. 4233 */ 4234 void 4235 goto_tabpage(int n) 4236 { 4237 tabpage_T *tp = NULL; // shut up compiler 4238 tabpage_T *ttp; 4239 int i; 4240 4241 if (text_locked()) 4242 { 4243 // Not allowed when editing the command line. 4244 text_locked_msg(); 4245 return; 4246 } 4247 4248 // If there is only one it can't work. 4249 if (first_tabpage->tp_next == NULL) 4250 { 4251 if (n > 1) 4252 beep_flush(); 4253 return; 4254 } 4255 4256 if (n == 0) 4257 { 4258 // No count, go to next tab page, wrap around end. 4259 if (curtab->tp_next == NULL) 4260 tp = first_tabpage; 4261 else 4262 tp = curtab->tp_next; 4263 } 4264 else if (n < 0) 4265 { 4266 // "gT": go to previous tab page, wrap around end. "N gT" repeats 4267 // this N times. 4268 ttp = curtab; 4269 for (i = n; i < 0; ++i) 4270 { 4271 for (tp = first_tabpage; tp->tp_next != ttp && tp->tp_next != NULL; 4272 tp = tp->tp_next) 4273 ; 4274 ttp = tp; 4275 } 4276 } 4277 else if (n == 9999) 4278 { 4279 // Go to last tab page. 4280 for (tp = first_tabpage; tp->tp_next != NULL; tp = tp->tp_next) 4281 ; 4282 } 4283 else 4284 { 4285 // Go to tab page "n". 4286 tp = find_tabpage(n); 4287 if (tp == NULL) 4288 { 4289 beep_flush(); 4290 return; 4291 } 4292 } 4293 4294 goto_tabpage_tp(tp, TRUE, TRUE); 4295 4296 #ifdef FEAT_GUI_TABLINE 4297 if (gui_use_tabline()) 4298 gui_mch_set_curtab(tabpage_index(curtab)); 4299 #endif 4300 } 4301 4302 /* 4303 * Go to tabpage "tp". 4304 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4305 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4306 * Note: doesn't update the GUI tab. 4307 */ 4308 void 4309 goto_tabpage_tp( 4310 tabpage_T *tp, 4311 int trigger_enter_autocmds, 4312 int trigger_leave_autocmds) 4313 { 4314 // Don't repeat a message in another tab page. 4315 set_keep_msg(NULL, 0); 4316 4317 if (tp != curtab && leave_tabpage(tp->tp_curwin->w_buffer, 4318 trigger_leave_autocmds) == OK) 4319 { 4320 if (valid_tabpage(tp)) 4321 enter_tabpage(tp, curbuf, trigger_enter_autocmds, 4322 trigger_leave_autocmds); 4323 else 4324 enter_tabpage(curtab, curbuf, trigger_enter_autocmds, 4325 trigger_leave_autocmds); 4326 } 4327 } 4328 4329 /* 4330 * Go to the last accessed tab page, if there is one. 4331 * Return OK or FAIL 4332 */ 4333 int 4334 goto_tabpage_lastused(void) 4335 { 4336 if (valid_tabpage(lastused_tabpage)) 4337 { 4338 goto_tabpage_tp(lastused_tabpage, TRUE, TRUE); 4339 return OK; 4340 } 4341 return FAIL; 4342 } 4343 4344 /* 4345 * Enter window "wp" in tab page "tp". 4346 * Also updates the GUI tab. 4347 */ 4348 void 4349 goto_tabpage_win(tabpage_T *tp, win_T *wp) 4350 { 4351 goto_tabpage_tp(tp, TRUE, TRUE); 4352 if (curtab == tp && win_valid(wp)) 4353 { 4354 win_enter(wp, TRUE); 4355 # ifdef FEAT_GUI_TABLINE 4356 if (gui_use_tabline()) 4357 gui_mch_set_curtab(tabpage_index(curtab)); 4358 # endif 4359 } 4360 } 4361 4362 /* 4363 * Move the current tab page to after tab page "nr". 4364 */ 4365 void 4366 tabpage_move(int nr) 4367 { 4368 int n = 1; 4369 tabpage_T *tp, *tp_dst; 4370 4371 if (first_tabpage->tp_next == NULL) 4372 return; 4373 4374 for (tp = first_tabpage; tp->tp_next != NULL && n < nr; tp = tp->tp_next) 4375 ++n; 4376 4377 if (tp == curtab || (nr > 0 && tp->tp_next != NULL 4378 && tp->tp_next == curtab)) 4379 return; 4380 4381 tp_dst = tp; 4382 4383 // Remove the current tab page from the list of tab pages. 4384 if (curtab == first_tabpage) 4385 first_tabpage = curtab->tp_next; 4386 else 4387 { 4388 FOR_ALL_TABPAGES(tp) 4389 if (tp->tp_next == curtab) 4390 break; 4391 if (tp == NULL) // "cannot happen" 4392 return; 4393 tp->tp_next = curtab->tp_next; 4394 } 4395 4396 // Re-insert it at the specified position. 4397 if (nr <= 0) 4398 { 4399 curtab->tp_next = first_tabpage; 4400 first_tabpage = curtab; 4401 } 4402 else 4403 { 4404 curtab->tp_next = tp_dst->tp_next; 4405 tp_dst->tp_next = curtab; 4406 } 4407 4408 // Need to redraw the tabline. Tab page contents doesn't change. 4409 redraw_tabline = TRUE; 4410 } 4411 4412 4413 /* 4414 * Go to another window. 4415 * When jumping to another buffer, stop Visual mode. Do this before 4416 * changing windows so we can yank the selection into the '*' register. 4417 * When jumping to another window on the same buffer, adjust its cursor 4418 * position to keep the same Visual area. 4419 */ 4420 void 4421 win_goto(win_T *wp) 4422 { 4423 #ifdef FEAT_CONCEAL 4424 win_T *owp = curwin; 4425 #endif 4426 4427 #ifdef FEAT_PROP_POPUP 4428 if (ERROR_IF_ANY_POPUP_WINDOW) 4429 return; 4430 if (popup_is_popup(wp)) 4431 { 4432 emsg(_("E366: Not allowed to enter a popup window")); 4433 return; 4434 } 4435 #endif 4436 if (text_and_win_locked()) 4437 { 4438 beep_flush(); 4439 text_locked_msg(); 4440 return; 4441 } 4442 if (curbuf_locked()) 4443 return; 4444 4445 if (wp->w_buffer != curbuf) 4446 reset_VIsual_and_resel(); 4447 else if (VIsual_active) 4448 wp->w_cursor = curwin->w_cursor; 4449 4450 #ifdef FEAT_GUI 4451 need_mouse_correct = TRUE; 4452 #endif 4453 win_enter(wp, TRUE); 4454 4455 #ifdef FEAT_CONCEAL 4456 // Conceal cursor line in previous window, unconceal in current window. 4457 if (win_valid(owp) && owp->w_p_cole > 0 && !msg_scrolled) 4458 redrawWinline(owp, owp->w_cursor.lnum); 4459 if (curwin->w_p_cole > 0 && !msg_scrolled) 4460 need_cursor_line_redraw = TRUE; 4461 #endif 4462 } 4463 4464 #if defined(FEAT_PERL) || defined(PROTO) 4465 /* 4466 * Find window number "winnr" (counting top to bottom). 4467 */ 4468 win_T * 4469 win_find_nr(int winnr) 4470 { 4471 win_T *wp; 4472 4473 FOR_ALL_WINDOWS(wp) 4474 if (--winnr == 0) 4475 break; 4476 return wp; 4477 } 4478 #endif 4479 4480 #if ((defined(FEAT_PYTHON) || defined(FEAT_PYTHON3))) || defined(PROTO) 4481 /* 4482 * Find the tabpage for window "win". 4483 */ 4484 tabpage_T * 4485 win_find_tabpage(win_T *win) 4486 { 4487 win_T *wp; 4488 tabpage_T *tp; 4489 4490 FOR_ALL_TAB_WINDOWS(tp, wp) 4491 if (wp == win) 4492 return tp; 4493 return NULL; 4494 } 4495 #endif 4496 4497 /* 4498 * Get the above or below neighbor window of the specified window. 4499 * up - TRUE for the above neighbor 4500 * count - nth neighbor window 4501 * Returns the specified window if the neighbor is not found. 4502 */ 4503 win_T * 4504 win_vert_neighbor(tabpage_T *tp, win_T *wp, int up, long count) 4505 { 4506 frame_T *fr; 4507 frame_T *nfr; 4508 frame_T *foundfr; 4509 4510 #ifdef FEAT_PROP_POPUP 4511 if (popup_is_popup(wp)) 4512 // popups don't have neighbors. 4513 return NULL; 4514 #endif 4515 foundfr = wp->w_frame; 4516 while (count--) 4517 { 4518 /* 4519 * First go upwards in the tree of frames until we find a upwards or 4520 * downwards neighbor. 4521 */ 4522 fr = foundfr; 4523 for (;;) 4524 { 4525 if (fr == tp->tp_topframe) 4526 goto end; 4527 if (up) 4528 nfr = fr->fr_prev; 4529 else 4530 nfr = fr->fr_next; 4531 if (fr->fr_parent->fr_layout == FR_COL && nfr != NULL) 4532 break; 4533 fr = fr->fr_parent; 4534 } 4535 4536 /* 4537 * Now go downwards to find the bottom or top frame in it. 4538 */ 4539 for (;;) 4540 { 4541 if (nfr->fr_layout == FR_LEAF) 4542 { 4543 foundfr = nfr; 4544 break; 4545 } 4546 fr = nfr->fr_child; 4547 if (nfr->fr_layout == FR_ROW) 4548 { 4549 // Find the frame at the cursor row. 4550 while (fr->fr_next != NULL 4551 && frame2win(fr)->w_wincol + fr->fr_width 4552 <= wp->w_wincol + wp->w_wcol) 4553 fr = fr->fr_next; 4554 } 4555 if (nfr->fr_layout == FR_COL && up) 4556 while (fr->fr_next != NULL) 4557 fr = fr->fr_next; 4558 nfr = fr; 4559 } 4560 } 4561 end: 4562 return foundfr != NULL ? foundfr->fr_win : NULL; 4563 } 4564 4565 /* 4566 * Move to window above or below "count" times. 4567 */ 4568 static void 4569 win_goto_ver( 4570 int up, // TRUE to go to win above 4571 long count) 4572 { 4573 win_T *win; 4574 4575 #ifdef FEAT_PROP_POPUP 4576 if (ERROR_IF_TERM_POPUP_WINDOW) 4577 return; 4578 #endif 4579 win = win_vert_neighbor(curtab, curwin, up, count); 4580 if (win != NULL) 4581 win_goto(win); 4582 } 4583 4584 /* 4585 * Get the left or right neighbor window of the specified window. 4586 * left - TRUE for the left neighbor 4587 * count - nth neighbor window 4588 * Returns the specified window if the neighbor is not found. 4589 */ 4590 win_T * 4591 win_horz_neighbor(tabpage_T *tp, win_T *wp, int left, long count) 4592 { 4593 frame_T *fr; 4594 frame_T *nfr; 4595 frame_T *foundfr; 4596 4597 #ifdef FEAT_PROP_POPUP 4598 if (popup_is_popup(wp)) 4599 // popups don't have neighbors. 4600 return NULL; 4601 #endif 4602 foundfr = wp->w_frame; 4603 while (count--) 4604 { 4605 /* 4606 * First go upwards in the tree of frames until we find a left or 4607 * right neighbor. 4608 */ 4609 fr = foundfr; 4610 for (;;) 4611 { 4612 if (fr == tp->tp_topframe) 4613 goto end; 4614 if (left) 4615 nfr = fr->fr_prev; 4616 else 4617 nfr = fr->fr_next; 4618 if (fr->fr_parent->fr_layout == FR_ROW && nfr != NULL) 4619 break; 4620 fr = fr->fr_parent; 4621 } 4622 4623 /* 4624 * Now go downwards to find the leftmost or rightmost frame in it. 4625 */ 4626 for (;;) 4627 { 4628 if (nfr->fr_layout == FR_LEAF) 4629 { 4630 foundfr = nfr; 4631 break; 4632 } 4633 fr = nfr->fr_child; 4634 if (nfr->fr_layout == FR_COL) 4635 { 4636 // Find the frame at the cursor row. 4637 while (fr->fr_next != NULL 4638 && frame2win(fr)->w_winrow + fr->fr_height 4639 <= wp->w_winrow + wp->w_wrow) 4640 fr = fr->fr_next; 4641 } 4642 if (nfr->fr_layout == FR_ROW && left) 4643 while (fr->fr_next != NULL) 4644 fr = fr->fr_next; 4645 nfr = fr; 4646 } 4647 } 4648 end: 4649 return foundfr != NULL ? foundfr->fr_win : NULL; 4650 } 4651 4652 /* 4653 * Move to left or right window. 4654 */ 4655 static void 4656 win_goto_hor( 4657 int left, // TRUE to go to left win 4658 long count) 4659 { 4660 win_T *win; 4661 4662 #ifdef FEAT_PROP_POPUP 4663 if (ERROR_IF_TERM_POPUP_WINDOW) 4664 return; 4665 #endif 4666 win = win_horz_neighbor(curtab, curwin, left, count); 4667 if (win != NULL) 4668 win_goto(win); 4669 } 4670 4671 /* 4672 * Make window "wp" the current window. 4673 */ 4674 void 4675 win_enter(win_T *wp, int undo_sync) 4676 { 4677 win_enter_ext(wp, undo_sync, FALSE, FALSE, TRUE, TRUE); 4678 } 4679 4680 /* 4681 * Make window wp the current window. 4682 * Can be called with "curwin_invalid" TRUE, which means that curwin has just 4683 * been closed and isn't valid. 4684 */ 4685 static void 4686 win_enter_ext( 4687 win_T *wp, 4688 int undo_sync, 4689 int curwin_invalid, 4690 int trigger_new_autocmds, 4691 int trigger_enter_autocmds, 4692 int trigger_leave_autocmds) 4693 { 4694 int other_buffer = FALSE; 4695 4696 if (wp == curwin && !curwin_invalid) // nothing to do 4697 return; 4698 4699 #ifdef FEAT_JOB_CHANNEL 4700 if (!curwin_invalid) 4701 leaving_window(curwin); 4702 #endif 4703 4704 if (!curwin_invalid && trigger_leave_autocmds) 4705 { 4706 /* 4707 * Be careful: If autocommands delete the window, return now. 4708 */ 4709 if (wp->w_buffer != curbuf) 4710 { 4711 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4712 other_buffer = TRUE; 4713 if (!win_valid(wp)) 4714 return; 4715 } 4716 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4717 if (!win_valid(wp)) 4718 return; 4719 #ifdef FEAT_EVAL 4720 // autocmds may abort script processing 4721 if (aborting()) 4722 return; 4723 #endif 4724 } 4725 4726 // sync undo before leaving the current buffer 4727 if (undo_sync && curbuf != wp->w_buffer) 4728 u_sync(FALSE); 4729 4730 // Might need to scroll the old window before switching, e.g., when the 4731 // cursor was moved. 4732 update_topline(); 4733 4734 // may have to copy the buffer options when 'cpo' contains 'S' 4735 if (wp->w_buffer != curbuf) 4736 buf_copy_options(wp->w_buffer, BCO_ENTER | BCO_NOHELP); 4737 if (!curwin_invalid) 4738 { 4739 prevwin = curwin; // remember for CTRL-W p 4740 curwin->w_redr_status = TRUE; 4741 } 4742 curwin = wp; 4743 curbuf = wp->w_buffer; 4744 check_cursor(); 4745 if (!virtual_active()) 4746 curwin->w_cursor.coladd = 0; 4747 changed_line_abv_curs(); // assume cursor position needs updating 4748 4749 if (curwin->w_localdir != NULL || curtab->tp_localdir != NULL) 4750 { 4751 char_u *dirname; 4752 4753 // Window or tab has a local directory: Save current directory as 4754 // global directory (unless that was done already) and change to the 4755 // local directory. 4756 if (globaldir == NULL) 4757 { 4758 char_u cwd[MAXPATHL]; 4759 4760 if (mch_dirname(cwd, MAXPATHL) == OK) 4761 globaldir = vim_strsave(cwd); 4762 } 4763 if (curwin->w_localdir != NULL) 4764 dirname = curwin->w_localdir; 4765 else 4766 dirname = curtab->tp_localdir; 4767 4768 if (mch_chdir((char *)dirname) == 0) 4769 shorten_fnames(TRUE); 4770 } 4771 else if (globaldir != NULL) 4772 { 4773 // Window doesn't have a local directory and we are not in the global 4774 // directory: Change to the global directory. 4775 vim_ignored = mch_chdir((char *)globaldir); 4776 VIM_CLEAR(globaldir); 4777 shorten_fnames(TRUE); 4778 } 4779 4780 #ifdef FEAT_JOB_CHANNEL 4781 entering_window(curwin); 4782 #endif 4783 // Careful: autocommands may close the window and make "wp" invalid 4784 if (trigger_new_autocmds) 4785 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 4786 if (trigger_enter_autocmds) 4787 { 4788 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 4789 if (other_buffer) 4790 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4791 } 4792 4793 #ifdef FEAT_TITLE 4794 maketitle(); 4795 #endif 4796 curwin->w_redr_status = TRUE; 4797 #ifdef FEAT_TERMINAL 4798 if (bt_terminal(curwin->w_buffer)) 4799 // terminal is likely in another mode 4800 redraw_mode = TRUE; 4801 #endif 4802 redraw_tabline = TRUE; 4803 if (restart_edit) 4804 redraw_later(VALID); // causes status line redraw 4805 4806 // set window height to desired minimal value 4807 if (curwin->w_height < p_wh && !curwin->w_p_wfh 4808 #ifdef FEAT_PROP_POPUP 4809 && !popup_is_popup(curwin) 4810 #endif 4811 ) 4812 win_setheight((int)p_wh); 4813 else if (curwin->w_height == 0) 4814 win_setheight(1); 4815 4816 // set window width to desired minimal value 4817 if (curwin->w_width < p_wiw && !curwin->w_p_wfw) 4818 win_setwidth((int)p_wiw); 4819 4820 setmouse(); // in case jumped to/from help buffer 4821 4822 // Change directories when the 'acd' option is set. 4823 DO_AUTOCHDIR; 4824 } 4825 4826 4827 /* 4828 * Jump to the first open window that contains buffer "buf", if one exists. 4829 * Returns a pointer to the window found, otherwise NULL. 4830 */ 4831 win_T * 4832 buf_jump_open_win(buf_T *buf) 4833 { 4834 win_T *wp = NULL; 4835 4836 if (curwin->w_buffer == buf) 4837 wp = curwin; 4838 else 4839 FOR_ALL_WINDOWS(wp) 4840 if (wp->w_buffer == buf) 4841 break; 4842 if (wp != NULL) 4843 win_enter(wp, FALSE); 4844 return wp; 4845 } 4846 4847 /* 4848 * Jump to the first open window in any tab page that contains buffer "buf", 4849 * if one exists. 4850 * Returns a pointer to the window found, otherwise NULL. 4851 */ 4852 win_T * 4853 buf_jump_open_tab(buf_T *buf) 4854 { 4855 win_T *wp = buf_jump_open_win(buf); 4856 tabpage_T *tp; 4857 4858 if (wp != NULL) 4859 return wp; 4860 4861 FOR_ALL_TABPAGES(tp) 4862 if (tp != curtab) 4863 { 4864 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 4865 if (wp->w_buffer == buf) 4866 break; 4867 if (wp != NULL) 4868 { 4869 goto_tabpage_win(tp, wp); 4870 if (curwin != wp) 4871 wp = NULL; // something went wrong 4872 break; 4873 } 4874 } 4875 return wp; 4876 } 4877 4878 static int last_win_id = LOWEST_WIN_ID - 1; 4879 4880 /* 4881 * Allocate a window structure and link it in the window list when "hidden" is 4882 * FALSE. 4883 */ 4884 static win_T * 4885 win_alloc(win_T *after UNUSED, int hidden UNUSED) 4886 { 4887 win_T *new_wp; 4888 4889 /* 4890 * allocate window structure and linesizes arrays 4891 */ 4892 new_wp = ALLOC_CLEAR_ONE(win_T); 4893 if (new_wp == NULL) 4894 return NULL; 4895 4896 if (win_alloc_lines(new_wp) == FAIL) 4897 { 4898 vim_free(new_wp); 4899 return NULL; 4900 } 4901 4902 new_wp->w_id = ++last_win_id; 4903 4904 #ifdef FEAT_EVAL 4905 // init w: variables 4906 new_wp->w_vars = dict_alloc(); 4907 if (new_wp->w_vars == NULL) 4908 { 4909 win_free_lsize(new_wp); 4910 vim_free(new_wp); 4911 return NULL; 4912 } 4913 init_var_dict(new_wp->w_vars, &new_wp->w_winvar, VAR_SCOPE); 4914 #endif 4915 4916 // Don't execute autocommands while the window is not properly 4917 // initialized yet. gui_create_scrollbar() may trigger a FocusGained 4918 // event. 4919 block_autocmds(); 4920 4921 /* 4922 * link the window in the window list 4923 */ 4924 if (!hidden) 4925 win_append(after, new_wp); 4926 new_wp->w_wincol = 0; 4927 new_wp->w_width = Columns; 4928 4929 // position the display and the cursor at the top of the file. 4930 new_wp->w_topline = 1; 4931 #ifdef FEAT_DIFF 4932 new_wp->w_topfill = 0; 4933 #endif 4934 new_wp->w_botline = 2; 4935 new_wp->w_cursor.lnum = 1; 4936 new_wp->w_scbind_pos = 1; 4937 4938 // use global option value for global-local options 4939 new_wp->w_p_so = -1; 4940 new_wp->w_p_siso = -1; 4941 4942 // We won't calculate w_fraction until resizing the window 4943 new_wp->w_fraction = 0; 4944 new_wp->w_prev_fraction_row = -1; 4945 4946 #ifdef FEAT_GUI 4947 if (gui.in_use) 4948 { 4949 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_LEFT], 4950 SBAR_LEFT, new_wp); 4951 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_RIGHT], 4952 SBAR_RIGHT, new_wp); 4953 } 4954 #endif 4955 #ifdef FEAT_FOLDING 4956 foldInitWin(new_wp); 4957 #endif 4958 unblock_autocmds(); 4959 #ifdef FEAT_SEARCH_EXTRA 4960 new_wp->w_match_head = NULL; 4961 new_wp->w_next_match_id = 4; 4962 #endif 4963 return new_wp; 4964 } 4965 4966 /* 4967 * Remove window 'wp' from the window list and free the structure. 4968 */ 4969 static void 4970 win_free( 4971 win_T *wp, 4972 tabpage_T *tp) // tab page "win" is in, NULL for current 4973 { 4974 int i; 4975 buf_T *buf; 4976 wininfo_T *wip; 4977 4978 #ifdef FEAT_FOLDING 4979 clearFolding(wp); 4980 #endif 4981 4982 // reduce the reference count to the argument list. 4983 alist_unlink(wp->w_alist); 4984 4985 // Don't execute autocommands while the window is halfway being deleted. 4986 // gui_mch_destroy_scrollbar() may trigger a FocusGained event. 4987 block_autocmds(); 4988 4989 #ifdef FEAT_LUA 4990 lua_window_free(wp); 4991 #endif 4992 4993 #ifdef FEAT_MZSCHEME 4994 mzscheme_window_free(wp); 4995 #endif 4996 4997 #ifdef FEAT_PERL 4998 perl_win_free(wp); 4999 #endif 5000 5001 #ifdef FEAT_PYTHON 5002 python_window_free(wp); 5003 #endif 5004 5005 #ifdef FEAT_PYTHON3 5006 python3_window_free(wp); 5007 #endif 5008 5009 #ifdef FEAT_TCL 5010 tcl_window_free(wp); 5011 #endif 5012 5013 #ifdef FEAT_RUBY 5014 ruby_window_free(wp); 5015 #endif 5016 5017 clear_winopt(&wp->w_onebuf_opt); 5018 clear_winopt(&wp->w_allbuf_opt); 5019 5020 #ifdef FEAT_EVAL 5021 vars_clear(&wp->w_vars->dv_hashtab); // free all w: variables 5022 hash_init(&wp->w_vars->dv_hashtab); 5023 unref_var_dict(wp->w_vars); 5024 #endif 5025 5026 { 5027 tabpage_T *ttp; 5028 5029 if (prevwin == wp) 5030 prevwin = NULL; 5031 FOR_ALL_TABPAGES(ttp) 5032 if (ttp->tp_prevwin == wp) 5033 ttp->tp_prevwin = NULL; 5034 } 5035 win_free_lsize(wp); 5036 5037 for (i = 0; i < wp->w_tagstacklen; ++i) 5038 { 5039 vim_free(wp->w_tagstack[i].tagname); 5040 vim_free(wp->w_tagstack[i].user_data); 5041 } 5042 vim_free(wp->w_localdir); 5043 vim_free(wp->w_prevdir); 5044 5045 // Remove the window from the b_wininfo lists, it may happen that the 5046 // freed memory is re-used for another window. 5047 FOR_ALL_BUFFERS(buf) 5048 FOR_ALL_BUF_WININFO(buf, wip) 5049 if (wip->wi_win == wp) 5050 { 5051 wininfo_T *wip2; 5052 5053 // If there already is an entry with "wi_win" set to NULL it 5054 // must be removed, it would never be used. 5055 for (wip2 = buf->b_wininfo; wip2 != NULL; wip2 = wip2->wi_next) 5056 if (wip2->wi_win == NULL) 5057 { 5058 if (wip2->wi_next != NULL) 5059 wip2->wi_next->wi_prev = wip2->wi_prev; 5060 if (wip2->wi_prev == NULL) 5061 buf->b_wininfo = wip2->wi_next; 5062 else 5063 wip2->wi_prev->wi_next = wip2->wi_next; 5064 free_wininfo(wip2); 5065 break; 5066 } 5067 5068 wip->wi_win = NULL; 5069 } 5070 5071 #ifdef FEAT_SEARCH_EXTRA 5072 clear_matches(wp); 5073 #endif 5074 5075 #ifdef FEAT_JUMPLIST 5076 free_jumplist(wp); 5077 #endif 5078 5079 #ifdef FEAT_QUICKFIX 5080 qf_free_all(wp); 5081 #endif 5082 5083 #ifdef FEAT_GUI 5084 if (gui.in_use) 5085 { 5086 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_LEFT]); 5087 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_RIGHT]); 5088 } 5089 #endif // FEAT_GUI 5090 5091 #ifdef FEAT_MENU 5092 remove_winbar(wp); 5093 #endif 5094 #ifdef FEAT_PROP_POPUP 5095 free_callback(&wp->w_close_cb); 5096 free_callback(&wp->w_filter_cb); 5097 for (i = 0; i < 4; ++i) 5098 VIM_CLEAR(wp->w_border_highlight[i]); 5099 vim_free(wp->w_scrollbar_highlight); 5100 vim_free(wp->w_thumb_highlight); 5101 vim_free(wp->w_popup_title); 5102 list_unref(wp->w_popup_mask); 5103 vim_free(wp->w_popup_mask_cells); 5104 #endif 5105 5106 #ifdef FEAT_SYN_HL 5107 vim_free(wp->w_p_cc_cols); 5108 #endif 5109 5110 if (win_valid_any_tab(wp)) 5111 win_remove(wp, tp); 5112 if (autocmd_busy) 5113 { 5114 wp->w_next = au_pending_free_win; 5115 au_pending_free_win = wp; 5116 } 5117 else 5118 vim_free(wp); 5119 5120 unblock_autocmds(); 5121 } 5122 5123 /* 5124 * Return TRUE if "wp" is not in the list of windows: the autocmd window or a 5125 * popup window. 5126 */ 5127 static int 5128 win_unlisted(win_T *wp) 5129 { 5130 return wp == aucmd_win || WIN_IS_POPUP(wp); 5131 } 5132 5133 #if defined(FEAT_PROP_POPUP) || defined(PROTO) 5134 /* 5135 * Free a popup window. This does not take the window out of the window list 5136 * and assumes there is only one toplevel frame, no split. 5137 */ 5138 void 5139 win_free_popup(win_T *win) 5140 { 5141 if (bt_popup(win->w_buffer)) 5142 win_close_buffer(win, DOBUF_WIPE_REUSE, FALSE); 5143 else 5144 close_buffer(win, win->w_buffer, 0, FALSE, FALSE); 5145 # if defined(FEAT_TIMERS) 5146 if (win->w_popup_timer != NULL) 5147 stop_timer(win->w_popup_timer); 5148 # endif 5149 vim_free(win->w_frame); 5150 win_free(win, NULL); 5151 } 5152 #endif 5153 5154 /* 5155 * Append window "wp" in the window list after window "after". 5156 */ 5157 static void 5158 win_append(win_T *after, win_T *wp) 5159 { 5160 win_T *before; 5161 5162 if (after == NULL) // after NULL is in front of the first 5163 before = firstwin; 5164 else 5165 before = after->w_next; 5166 5167 wp->w_next = before; 5168 wp->w_prev = after; 5169 if (after == NULL) 5170 firstwin = wp; 5171 else 5172 after->w_next = wp; 5173 if (before == NULL) 5174 lastwin = wp; 5175 else 5176 before->w_prev = wp; 5177 } 5178 5179 /* 5180 * Remove a window from the window list. 5181 */ 5182 void 5183 win_remove( 5184 win_T *wp, 5185 tabpage_T *tp) // tab page "win" is in, NULL for current 5186 { 5187 if (wp->w_prev != NULL) 5188 wp->w_prev->w_next = wp->w_next; 5189 else if (tp == NULL) 5190 firstwin = curtab->tp_firstwin = wp->w_next; 5191 else 5192 tp->tp_firstwin = wp->w_next; 5193 5194 if (wp->w_next != NULL) 5195 wp->w_next->w_prev = wp->w_prev; 5196 else if (tp == NULL) 5197 lastwin = curtab->tp_lastwin = wp->w_prev; 5198 else 5199 tp->tp_lastwin = wp->w_prev; 5200 } 5201 5202 /* 5203 * Append frame "frp" in a frame list after frame "after". 5204 */ 5205 static void 5206 frame_append(frame_T *after, frame_T *frp) 5207 { 5208 frp->fr_next = after->fr_next; 5209 after->fr_next = frp; 5210 if (frp->fr_next != NULL) 5211 frp->fr_next->fr_prev = frp; 5212 frp->fr_prev = after; 5213 } 5214 5215 /* 5216 * Insert frame "frp" in a frame list before frame "before". 5217 */ 5218 static void 5219 frame_insert(frame_T *before, frame_T *frp) 5220 { 5221 frp->fr_next = before; 5222 frp->fr_prev = before->fr_prev; 5223 before->fr_prev = frp; 5224 if (frp->fr_prev != NULL) 5225 frp->fr_prev->fr_next = frp; 5226 else 5227 frp->fr_parent->fr_child = frp; 5228 } 5229 5230 /* 5231 * Remove a frame from a frame list. 5232 */ 5233 static void 5234 frame_remove(frame_T *frp) 5235 { 5236 if (frp->fr_prev != NULL) 5237 frp->fr_prev->fr_next = frp->fr_next; 5238 else 5239 { 5240 frp->fr_parent->fr_child = frp->fr_next; 5241 // special case: topframe->fr_child == frp 5242 if (topframe->fr_child == frp) 5243 topframe->fr_child = frp->fr_next; 5244 } 5245 if (frp->fr_next != NULL) 5246 frp->fr_next->fr_prev = frp->fr_prev; 5247 } 5248 5249 /* 5250 * Allocate w_lines[] for window "wp". 5251 * Return FAIL for failure, OK for success. 5252 */ 5253 int 5254 win_alloc_lines(win_T *wp) 5255 { 5256 wp->w_lines_valid = 0; 5257 wp->w_lines = ALLOC_CLEAR_MULT(wline_T, Rows ); 5258 if (wp->w_lines == NULL) 5259 return FAIL; 5260 return OK; 5261 } 5262 5263 /* 5264 * free lsize arrays for a window 5265 */ 5266 void 5267 win_free_lsize(win_T *wp) 5268 { 5269 // TODO: why would wp be NULL here? 5270 if (wp != NULL) 5271 VIM_CLEAR(wp->w_lines); 5272 } 5273 5274 /* 5275 * Called from win_new_shellsize() after Rows changed. 5276 * This only does the current tab page, others must be done when made active. 5277 */ 5278 void 5279 shell_new_rows(void) 5280 { 5281 int h = (int)ROWS_AVAIL; 5282 5283 if (firstwin == NULL) // not initialized yet 5284 return; 5285 if (h < frame_minheight(topframe, NULL)) 5286 h = frame_minheight(topframe, NULL); 5287 5288 // First try setting the heights of windows with 'winfixheight'. If 5289 // that doesn't result in the right height, forget about that option. 5290 frame_new_height(topframe, h, FALSE, TRUE); 5291 if (!frame_check_height(topframe, h)) 5292 frame_new_height(topframe, h, FALSE, FALSE); 5293 5294 (void)win_comp_pos(); // recompute w_winrow and w_wincol 5295 compute_cmdrow(); 5296 curtab->tp_ch_used = p_ch; 5297 5298 #if 0 5299 // Disabled: don't want making the screen smaller make a window larger. 5300 if (p_ea) 5301 win_equal(curwin, FALSE, 'v'); 5302 #endif 5303 } 5304 5305 /* 5306 * Called from win_new_shellsize() after Columns changed. 5307 */ 5308 void 5309 shell_new_columns(void) 5310 { 5311 if (firstwin == NULL) // not initialized yet 5312 return; 5313 5314 // First try setting the widths of windows with 'winfixwidth'. If that 5315 // doesn't result in the right width, forget about that option. 5316 frame_new_width(topframe, (int)Columns, FALSE, TRUE); 5317 if (!frame_check_width(topframe, Columns)) 5318 frame_new_width(topframe, (int)Columns, FALSE, FALSE); 5319 5320 (void)win_comp_pos(); // recompute w_winrow and w_wincol 5321 #if 0 5322 // Disabled: don't want making the screen smaller make a window larger. 5323 if (p_ea) 5324 win_equal(curwin, FALSE, 'h'); 5325 #endif 5326 } 5327 5328 #if defined(FEAT_CMDWIN) || defined(PROTO) 5329 /* 5330 * Save the size of all windows in "gap". 5331 */ 5332 void 5333 win_size_save(garray_T *gap) 5334 5335 { 5336 win_T *wp; 5337 5338 ga_init2(gap, (int)sizeof(int), 1); 5339 if (ga_grow(gap, win_count() * 2 + 1) == OK) 5340 { 5341 // first entry is value of 'lines' 5342 ((int *)gap->ga_data)[gap->ga_len++] = Rows; 5343 5344 FOR_ALL_WINDOWS(wp) 5345 { 5346 ((int *)gap->ga_data)[gap->ga_len++] = 5347 wp->w_width + wp->w_vsep_width; 5348 ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height; 5349 } 5350 } 5351 } 5352 5353 /* 5354 * Restore window sizes, but only if the number of windows is still the same 5355 * and 'lines' didn't change. 5356 * Does not free the growarray. 5357 */ 5358 void 5359 win_size_restore(garray_T *gap) 5360 { 5361 win_T *wp; 5362 int i, j; 5363 5364 if (win_count() * 2 + 1 == gap->ga_len 5365 && ((int *)gap->ga_data)[0] == Rows) 5366 { 5367 // The order matters, because frames contain other frames, but it's 5368 // difficult to get right. The easy way out is to do it twice. 5369 for (j = 0; j < 2; ++j) 5370 { 5371 i = 1; 5372 FOR_ALL_WINDOWS(wp) 5373 { 5374 frame_setwidth(wp->w_frame, ((int *)gap->ga_data)[i++]); 5375 win_setheight_win(((int *)gap->ga_data)[i++], wp); 5376 } 5377 } 5378 // recompute the window positions 5379 (void)win_comp_pos(); 5380 } 5381 } 5382 #endif // FEAT_CMDWIN 5383 5384 /* 5385 * Update the position for all windows, using the width and height of the 5386 * frames. 5387 * Returns the row just after the last window. 5388 */ 5389 int 5390 win_comp_pos(void) 5391 { 5392 int row = tabline_height(); 5393 int col = 0; 5394 5395 frame_comp_pos(topframe, &row, &col); 5396 return row; 5397 } 5398 5399 /* 5400 * Update the position of the windows in frame "topfrp", using the width and 5401 * height of the frames. 5402 * "*row" and "*col" are the top-left position of the frame. They are updated 5403 * to the bottom-right position plus one. 5404 */ 5405 static void 5406 frame_comp_pos(frame_T *topfrp, int *row, int *col) 5407 { 5408 win_T *wp; 5409 frame_T *frp; 5410 int startcol; 5411 int startrow; 5412 int h; 5413 5414 wp = topfrp->fr_win; 5415 if (wp != NULL) 5416 { 5417 if (wp->w_winrow != *row || wp->w_wincol != *col) 5418 { 5419 // position changed, redraw 5420 wp->w_winrow = *row; 5421 wp->w_wincol = *col; 5422 redraw_win_later(wp, NOT_VALID); 5423 wp->w_redr_status = TRUE; 5424 } 5425 // WinBar will not show if the window height is zero 5426 h = VISIBLE_HEIGHT(wp) + wp->w_status_height; 5427 *row += h > topfrp->fr_height ? topfrp->fr_height : h; 5428 *col += wp->w_width + wp->w_vsep_width; 5429 } 5430 else 5431 { 5432 startrow = *row; 5433 startcol = *col; 5434 FOR_ALL_FRAMES(frp, topfrp->fr_child) 5435 { 5436 if (topfrp->fr_layout == FR_ROW) 5437 *row = startrow; // all frames are at the same row 5438 else 5439 *col = startcol; // all frames are at the same col 5440 frame_comp_pos(frp, row, col); 5441 } 5442 } 5443 } 5444 5445 /* 5446 * Set current window height and take care of repositioning other windows to 5447 * fit around it. 5448 */ 5449 void 5450 win_setheight(int height) 5451 { 5452 win_setheight_win(height, curwin); 5453 } 5454 5455 /* 5456 * Set the window height of window "win" and take care of repositioning other 5457 * windows to fit around it. 5458 */ 5459 void 5460 win_setheight_win(int height, win_T *win) 5461 { 5462 int row; 5463 5464 if (win == curwin) 5465 { 5466 // Always keep current window at least one line high, even when 5467 // 'winminheight' is zero. 5468 if (height < p_wmh) 5469 height = p_wmh; 5470 if (height == 0) 5471 height = 1; 5472 height += WINBAR_HEIGHT(curwin); 5473 } 5474 5475 frame_setheight(win->w_frame, height + win->w_status_height); 5476 5477 // recompute the window positions 5478 row = win_comp_pos(); 5479 5480 /* 5481 * If there is extra space created between the last window and the command 5482 * line, clear it. 5483 */ 5484 if (full_screen && msg_scrolled == 0 && row < cmdline_row) 5485 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5486 cmdline_row = row; 5487 msg_row = row; 5488 msg_col = 0; 5489 5490 redraw_all_later(NOT_VALID); 5491 } 5492 5493 /* 5494 * Set the height of a frame to "height" and take care that all frames and 5495 * windows inside it are resized. Also resize frames on the left and right if 5496 * the are in the same FR_ROW frame. 5497 * 5498 * Strategy: 5499 * If the frame is part of a FR_COL frame, try fitting the frame in that 5500 * frame. If that doesn't work (the FR_COL frame is too small), recursively 5501 * go to containing frames to resize them and make room. 5502 * If the frame is part of a FR_ROW frame, all frames must be resized as well. 5503 * Check for the minimal height of the FR_ROW frame. 5504 * At the top level we can also use change the command line height. 5505 */ 5506 static void 5507 frame_setheight(frame_T *curfrp, int height) 5508 { 5509 int room; // total number of lines available 5510 int take; // number of lines taken from other windows 5511 int room_cmdline; // lines available from cmdline 5512 int run; 5513 frame_T *frp; 5514 int h; 5515 int room_reserved; 5516 5517 // If the height already is the desired value, nothing to do. 5518 if (curfrp->fr_height == height) 5519 return; 5520 5521 if (curfrp->fr_parent == NULL) 5522 { 5523 // topframe: can only change the command line 5524 if (height > ROWS_AVAIL) 5525 height = ROWS_AVAIL; 5526 if (height > 0) 5527 frame_new_height(curfrp, height, FALSE, FALSE); 5528 } 5529 else if (curfrp->fr_parent->fr_layout == FR_ROW) 5530 { 5531 // Row of frames: Also need to resize frames left and right of this 5532 // one. First check for the minimal height of these. 5533 h = frame_minheight(curfrp->fr_parent, NULL); 5534 if (height < h) 5535 height = h; 5536 frame_setheight(curfrp->fr_parent, height); 5537 } 5538 else 5539 { 5540 /* 5541 * Column of frames: try to change only frames in this column. 5542 */ 5543 /* 5544 * Do this twice: 5545 * 1: compute room available, if it's not enough try resizing the 5546 * containing frame. 5547 * 2: compute the room available and adjust the height to it. 5548 * Try not to reduce the height of a window with 'winfixheight' set. 5549 */ 5550 for (run = 1; run <= 2; ++run) 5551 { 5552 room = 0; 5553 room_reserved = 0; 5554 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5555 { 5556 if (frp != curfrp 5557 && frp->fr_win != NULL 5558 && frp->fr_win->w_p_wfh) 5559 room_reserved += frp->fr_height; 5560 room += frp->fr_height; 5561 if (frp != curfrp) 5562 room -= frame_minheight(frp, NULL); 5563 } 5564 if (curfrp->fr_width != Columns) 5565 room_cmdline = 0; 5566 else 5567 { 5568 room_cmdline = Rows - p_ch - (lastwin->w_winrow 5569 + VISIBLE_HEIGHT(lastwin) 5570 + lastwin->w_status_height); 5571 if (room_cmdline < 0) 5572 room_cmdline = 0; 5573 } 5574 5575 if (height <= room + room_cmdline) 5576 break; 5577 if (run == 2 || curfrp->fr_width == Columns) 5578 { 5579 if (height > room + room_cmdline) 5580 height = room + room_cmdline; 5581 break; 5582 } 5583 frame_setheight(curfrp->fr_parent, height 5584 + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1); 5585 } 5586 5587 /* 5588 * Compute the number of lines we will take from others frames (can be 5589 * negative!). 5590 */ 5591 take = height - curfrp->fr_height; 5592 5593 // If there is not enough room, also reduce the height of a window 5594 // with 'winfixheight' set. 5595 if (height > room + room_cmdline - room_reserved) 5596 room_reserved = room + room_cmdline - height; 5597 // If there is only a 'winfixheight' window and making the 5598 // window smaller, need to make the other window taller. 5599 if (take < 0 && room - curfrp->fr_height < room_reserved) 5600 room_reserved = 0; 5601 5602 if (take > 0 && room_cmdline > 0) 5603 { 5604 // use lines from cmdline first 5605 if (take < room_cmdline) 5606 room_cmdline = take; 5607 take -= room_cmdline; 5608 topframe->fr_height += room_cmdline; 5609 } 5610 5611 /* 5612 * set the current frame to the new height 5613 */ 5614 frame_new_height(curfrp, height, FALSE, FALSE); 5615 5616 /* 5617 * First take lines from the frames after the current frame. If 5618 * that is not enough, takes lines from frames above the current 5619 * frame. 5620 */ 5621 for (run = 0; run < 2; ++run) 5622 { 5623 if (run == 0) 5624 frp = curfrp->fr_next; // 1st run: start with next window 5625 else 5626 frp = curfrp->fr_prev; // 2nd run: start with prev window 5627 while (frp != NULL && take != 0) 5628 { 5629 h = frame_minheight(frp, NULL); 5630 if (room_reserved > 0 5631 && frp->fr_win != NULL 5632 && frp->fr_win->w_p_wfh) 5633 { 5634 if (room_reserved >= frp->fr_height) 5635 room_reserved -= frp->fr_height; 5636 else 5637 { 5638 if (frp->fr_height - room_reserved > take) 5639 room_reserved = frp->fr_height - take; 5640 take -= frp->fr_height - room_reserved; 5641 frame_new_height(frp, room_reserved, FALSE, FALSE); 5642 room_reserved = 0; 5643 } 5644 } 5645 else 5646 { 5647 if (frp->fr_height - take < h) 5648 { 5649 take -= frp->fr_height - h; 5650 frame_new_height(frp, h, FALSE, FALSE); 5651 } 5652 else 5653 { 5654 frame_new_height(frp, frp->fr_height - take, 5655 FALSE, FALSE); 5656 take = 0; 5657 } 5658 } 5659 if (run == 0) 5660 frp = frp->fr_next; 5661 else 5662 frp = frp->fr_prev; 5663 } 5664 } 5665 } 5666 } 5667 5668 /* 5669 * Set current window width and take care of repositioning other windows to 5670 * fit around it. 5671 */ 5672 void 5673 win_setwidth(int width) 5674 { 5675 win_setwidth_win(width, curwin); 5676 } 5677 5678 void 5679 win_setwidth_win(int width, win_T *wp) 5680 { 5681 // Always keep current window at least one column wide, even when 5682 // 'winminwidth' is zero. 5683 if (wp == curwin) 5684 { 5685 if (width < p_wmw) 5686 width = p_wmw; 5687 if (width == 0) 5688 width = 1; 5689 } 5690 else if (width < 0) 5691 width = 0; 5692 5693 frame_setwidth(wp->w_frame, width + wp->w_vsep_width); 5694 5695 // recompute the window positions 5696 (void)win_comp_pos(); 5697 5698 redraw_all_later(NOT_VALID); 5699 } 5700 5701 /* 5702 * Set the width of a frame to "width" and take care that all frames and 5703 * windows inside it are resized. Also resize frames above and below if the 5704 * are in the same FR_ROW frame. 5705 * 5706 * Strategy is similar to frame_setheight(). 5707 */ 5708 static void 5709 frame_setwidth(frame_T *curfrp, int width) 5710 { 5711 int room; // total number of lines available 5712 int take; // number of lines taken from other windows 5713 int run; 5714 frame_T *frp; 5715 int w; 5716 int room_reserved; 5717 5718 // If the width already is the desired value, nothing to do. 5719 if (curfrp->fr_width == width) 5720 return; 5721 5722 if (curfrp->fr_parent == NULL) 5723 // topframe: can't change width 5724 return; 5725 5726 if (curfrp->fr_parent->fr_layout == FR_COL) 5727 { 5728 // Column of frames: Also need to resize frames above and below of 5729 // this one. First check for the minimal width of these. 5730 w = frame_minwidth(curfrp->fr_parent, NULL); 5731 if (width < w) 5732 width = w; 5733 frame_setwidth(curfrp->fr_parent, width); 5734 } 5735 else 5736 { 5737 /* 5738 * Row of frames: try to change only frames in this row. 5739 * 5740 * Do this twice: 5741 * 1: compute room available, if it's not enough try resizing the 5742 * containing frame. 5743 * 2: compute the room available and adjust the width to it. 5744 */ 5745 for (run = 1; run <= 2; ++run) 5746 { 5747 room = 0; 5748 room_reserved = 0; 5749 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5750 { 5751 if (frp != curfrp 5752 && frp->fr_win != NULL 5753 && frp->fr_win->w_p_wfw) 5754 room_reserved += frp->fr_width; 5755 room += frp->fr_width; 5756 if (frp != curfrp) 5757 room -= frame_minwidth(frp, NULL); 5758 } 5759 5760 if (width <= room) 5761 break; 5762 if (run == 2 || curfrp->fr_height >= ROWS_AVAIL) 5763 { 5764 if (width > room) 5765 width = room; 5766 break; 5767 } 5768 frame_setwidth(curfrp->fr_parent, width 5769 + frame_minwidth(curfrp->fr_parent, NOWIN) - (int)p_wmw - 1); 5770 } 5771 5772 /* 5773 * Compute the number of lines we will take from others frames (can be 5774 * negative!). 5775 */ 5776 take = width - curfrp->fr_width; 5777 5778 // If there is not enough room, also reduce the width of a window 5779 // with 'winfixwidth' set. 5780 if (width > room - room_reserved) 5781 room_reserved = room - width; 5782 // If there is only a 'winfixwidth' window and making the 5783 // window smaller, need to make the other window narrower. 5784 if (take < 0 && room - curfrp->fr_width < room_reserved) 5785 room_reserved = 0; 5786 5787 /* 5788 * set the current frame to the new width 5789 */ 5790 frame_new_width(curfrp, width, FALSE, FALSE); 5791 5792 /* 5793 * First take lines from the frames right of the current frame. If 5794 * that is not enough, takes lines from frames left of the current 5795 * frame. 5796 */ 5797 for (run = 0; run < 2; ++run) 5798 { 5799 if (run == 0) 5800 frp = curfrp->fr_next; // 1st run: start with next window 5801 else 5802 frp = curfrp->fr_prev; // 2nd run: start with prev window 5803 while (frp != NULL && take != 0) 5804 { 5805 w = frame_minwidth(frp, NULL); 5806 if (room_reserved > 0 5807 && frp->fr_win != NULL 5808 && frp->fr_win->w_p_wfw) 5809 { 5810 if (room_reserved >= frp->fr_width) 5811 room_reserved -= frp->fr_width; 5812 else 5813 { 5814 if (frp->fr_width - room_reserved > take) 5815 room_reserved = frp->fr_width - take; 5816 take -= frp->fr_width - room_reserved; 5817 frame_new_width(frp, room_reserved, FALSE, FALSE); 5818 room_reserved = 0; 5819 } 5820 } 5821 else 5822 { 5823 if (frp->fr_width - take < w) 5824 { 5825 take -= frp->fr_width - w; 5826 frame_new_width(frp, w, FALSE, FALSE); 5827 } 5828 else 5829 { 5830 frame_new_width(frp, frp->fr_width - take, 5831 FALSE, FALSE); 5832 take = 0; 5833 } 5834 } 5835 if (run == 0) 5836 frp = frp->fr_next; 5837 else 5838 frp = frp->fr_prev; 5839 } 5840 } 5841 } 5842 } 5843 5844 /* 5845 * Check 'winminheight' for a valid value and reduce it if needed. 5846 */ 5847 void 5848 win_setminheight(void) 5849 { 5850 int room; 5851 int needed; 5852 int first = TRUE; 5853 5854 // loop until there is a 'winminheight' that is possible 5855 while (p_wmh > 0) 5856 { 5857 room = Rows - p_ch; 5858 needed = frame_minheight(topframe, NULL); 5859 if (room >= needed) 5860 break; 5861 --p_wmh; 5862 if (first) 5863 { 5864 emsg(_(e_noroom)); 5865 first = FALSE; 5866 } 5867 } 5868 } 5869 5870 /* 5871 * Check 'winminwidth' for a valid value and reduce it if needed. 5872 */ 5873 void 5874 win_setminwidth(void) 5875 { 5876 int room; 5877 int needed; 5878 int first = TRUE; 5879 5880 // loop until there is a 'winminheight' that is possible 5881 while (p_wmw > 0) 5882 { 5883 room = Columns; 5884 needed = frame_minwidth(topframe, NULL); 5885 if (room >= needed) 5886 break; 5887 --p_wmw; 5888 if (first) 5889 { 5890 emsg(_(e_noroom)); 5891 first = FALSE; 5892 } 5893 } 5894 } 5895 5896 /* 5897 * Status line of dragwin is dragged "offset" lines down (negative is up). 5898 */ 5899 void 5900 win_drag_status_line(win_T *dragwin, int offset) 5901 { 5902 frame_T *curfr; 5903 frame_T *fr; 5904 int room; 5905 int row; 5906 int up; // if TRUE, drag status line up, otherwise down 5907 int n; 5908 5909 fr = dragwin->w_frame; 5910 curfr = fr; 5911 if (fr != topframe) // more than one window 5912 { 5913 fr = fr->fr_parent; 5914 // When the parent frame is not a column of frames, its parent should 5915 // be. 5916 if (fr->fr_layout != FR_COL) 5917 { 5918 curfr = fr; 5919 if (fr != topframe) // only a row of windows, may drag statusline 5920 fr = fr->fr_parent; 5921 } 5922 } 5923 5924 // If this is the last frame in a column, may want to resize the parent 5925 // frame instead (go two up to skip a row of frames). 5926 while (curfr != topframe && curfr->fr_next == NULL) 5927 { 5928 if (fr != topframe) 5929 fr = fr->fr_parent; 5930 curfr = fr; 5931 if (fr != topframe) 5932 fr = fr->fr_parent; 5933 } 5934 5935 if (offset < 0) // drag up 5936 { 5937 up = TRUE; 5938 offset = -offset; 5939 // sum up the room of the current frame and above it 5940 if (fr == curfr) 5941 { 5942 // only one window 5943 room = fr->fr_height - frame_minheight(fr, NULL); 5944 } 5945 else 5946 { 5947 room = 0; 5948 for (fr = fr->fr_child; ; fr = fr->fr_next) 5949 { 5950 room += fr->fr_height - frame_minheight(fr, NULL); 5951 if (fr == curfr) 5952 break; 5953 } 5954 } 5955 fr = curfr->fr_next; // put fr at frame that grows 5956 } 5957 else // drag down 5958 { 5959 up = FALSE; 5960 /* 5961 * Only dragging the last status line can reduce p_ch. 5962 */ 5963 room = Rows - cmdline_row; 5964 if (curfr->fr_next == NULL) 5965 room -= 1; 5966 else 5967 room -= p_ch; 5968 if (room < 0) 5969 room = 0; 5970 // sum up the room of frames below of the current one 5971 FOR_ALL_FRAMES(fr, curfr->fr_next) 5972 room += fr->fr_height - frame_minheight(fr, NULL); 5973 fr = curfr; // put fr at window that grows 5974 } 5975 5976 if (room < offset) // Not enough room 5977 offset = room; // Move as far as we can 5978 if (offset <= 0) 5979 return; 5980 5981 /* 5982 * Grow frame fr by "offset" lines. 5983 * Doesn't happen when dragging the last status line up. 5984 */ 5985 if (fr != NULL) 5986 frame_new_height(fr, fr->fr_height + offset, up, FALSE); 5987 5988 if (up) 5989 fr = curfr; // current frame gets smaller 5990 else 5991 fr = curfr->fr_next; // next frame gets smaller 5992 5993 /* 5994 * Now make the other frames smaller. 5995 */ 5996 while (fr != NULL && offset > 0) 5997 { 5998 n = frame_minheight(fr, NULL); 5999 if (fr->fr_height - offset <= n) 6000 { 6001 offset -= fr->fr_height - n; 6002 frame_new_height(fr, n, !up, FALSE); 6003 } 6004 else 6005 { 6006 frame_new_height(fr, fr->fr_height - offset, !up, FALSE); 6007 break; 6008 } 6009 if (up) 6010 fr = fr->fr_prev; 6011 else 6012 fr = fr->fr_next; 6013 } 6014 row = win_comp_pos(); 6015 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 6016 cmdline_row = row; 6017 p_ch = Rows - cmdline_row; 6018 if (p_ch < 1) 6019 p_ch = 1; 6020 curtab->tp_ch_used = p_ch; 6021 redraw_all_later(SOME_VALID); 6022 showmode(); 6023 } 6024 6025 /* 6026 * Separator line of dragwin is dragged "offset" lines right (negative is left). 6027 */ 6028 void 6029 win_drag_vsep_line(win_T *dragwin, int offset) 6030 { 6031 frame_T *curfr; 6032 frame_T *fr; 6033 int room; 6034 int left; // if TRUE, drag separator line left, otherwise right 6035 int n; 6036 6037 fr = dragwin->w_frame; 6038 if (fr == topframe) // only one window (cannot happen?) 6039 return; 6040 curfr = fr; 6041 fr = fr->fr_parent; 6042 // When the parent frame is not a row of frames, its parent should be. 6043 if (fr->fr_layout != FR_ROW) 6044 { 6045 if (fr == topframe) // only a column of windows (cannot happen?) 6046 return; 6047 curfr = fr; 6048 fr = fr->fr_parent; 6049 } 6050 6051 // If this is the last frame in a row, may want to resize a parent 6052 // frame instead. 6053 while (curfr->fr_next == NULL) 6054 { 6055 if (fr == topframe) 6056 break; 6057 curfr = fr; 6058 fr = fr->fr_parent; 6059 if (fr != topframe) 6060 { 6061 curfr = fr; 6062 fr = fr->fr_parent; 6063 } 6064 } 6065 6066 if (offset < 0) // drag left 6067 { 6068 left = TRUE; 6069 offset = -offset; 6070 // sum up the room of the current frame and left of it 6071 room = 0; 6072 for (fr = fr->fr_child; ; fr = fr->fr_next) 6073 { 6074 room += fr->fr_width - frame_minwidth(fr, NULL); 6075 if (fr == curfr) 6076 break; 6077 } 6078 fr = curfr->fr_next; // put fr at frame that grows 6079 } 6080 else // drag right 6081 { 6082 left = FALSE; 6083 // sum up the room of frames right of the current one 6084 room = 0; 6085 FOR_ALL_FRAMES(fr, curfr->fr_next) 6086 room += fr->fr_width - frame_minwidth(fr, NULL); 6087 fr = curfr; // put fr at window that grows 6088 } 6089 6090 if (room < offset) // Not enough room 6091 offset = room; // Move as far as we can 6092 if (offset <= 0) // No room at all, quit. 6093 return; 6094 if (fr == NULL) 6095 return; // Safety check, should not happen. 6096 6097 // grow frame fr by offset lines 6098 frame_new_width(fr, fr->fr_width + offset, left, FALSE); 6099 6100 // shrink other frames: current and at the left or at the right 6101 if (left) 6102 fr = curfr; // current frame gets smaller 6103 else 6104 fr = curfr->fr_next; // next frame gets smaller 6105 6106 while (fr != NULL && offset > 0) 6107 { 6108 n = frame_minwidth(fr, NULL); 6109 if (fr->fr_width - offset <= n) 6110 { 6111 offset -= fr->fr_width - n; 6112 frame_new_width(fr, n, !left, FALSE); 6113 } 6114 else 6115 { 6116 frame_new_width(fr, fr->fr_width - offset, !left, FALSE); 6117 break; 6118 } 6119 if (left) 6120 fr = fr->fr_prev; 6121 else 6122 fr = fr->fr_next; 6123 } 6124 (void)win_comp_pos(); 6125 redraw_all_later(NOT_VALID); 6126 } 6127 6128 #define FRACTION_MULT 16384L 6129 6130 /* 6131 * Set wp->w_fraction for the current w_wrow and w_height. 6132 * Has no effect when the window is less than two lines. 6133 */ 6134 void 6135 set_fraction(win_T *wp) 6136 { 6137 if (wp->w_height > 1) 6138 // When cursor is in the first line the percentage is computed as if 6139 // it's halfway that line. Thus with two lines it is 25%, with three 6140 // lines 17%, etc. Similarly for the last line: 75%, 83%, etc. 6141 wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT 6142 + FRACTION_MULT / 2) / (long)wp->w_height; 6143 } 6144 6145 /* 6146 * Set the height of a window. 6147 * "height" excludes any window toolbar. 6148 * This takes care of the things inside the window, not what happens to the 6149 * window position, the frame or to other windows. 6150 */ 6151 void 6152 win_new_height(win_T *wp, int height) 6153 { 6154 int prev_height = wp->w_height; 6155 6156 // Don't want a negative height. Happens when splitting a tiny window. 6157 // Will equalize heights soon to fix it. 6158 if (height < 0) 6159 height = 0; 6160 if (wp->w_height == height) 6161 return; // nothing to do 6162 6163 if (wp->w_height > 0) 6164 { 6165 if (wp == curwin) 6166 // w_wrow needs to be valid. When setting 'laststatus' this may 6167 // call win_new_height() recursively. 6168 validate_cursor(); 6169 if (wp->w_height != prev_height) 6170 return; // Recursive call already changed the size, bail out here 6171 // to avoid the following to mess things up. 6172 if (wp->w_wrow != wp->w_prev_fraction_row) 6173 set_fraction(wp); 6174 } 6175 6176 wp->w_height = height; 6177 wp->w_skipcol = 0; 6178 6179 // There is no point in adjusting the scroll position when exiting. Some 6180 // values might be invalid. 6181 if (!exiting) 6182 scroll_to_fraction(wp, prev_height); 6183 } 6184 6185 void 6186 scroll_to_fraction(win_T *wp, int prev_height) 6187 { 6188 linenr_T lnum; 6189 int sline, line_size; 6190 int height = wp->w_height; 6191 6192 // Don't change w_topline in any of these cases: 6193 // - window height is 0 6194 // - 'scrollbind' is set and this isn't the current window 6195 // - window height is sufficient to display the whole buffer and first line 6196 // is visible. 6197 if (height > 0 6198 && (!wp->w_p_scb || wp == curwin) 6199 && (height < wp->w_buffer->b_ml.ml_line_count || wp->w_topline > 1)) 6200 { 6201 /* 6202 * Find a value for w_topline that shows the cursor at the same 6203 * relative position in the window as before (more or less). 6204 */ 6205 lnum = wp->w_cursor.lnum; 6206 if (lnum < 1) // can happen when starting up 6207 lnum = 1; 6208 wp->w_wrow = ((long)wp->w_fraction * (long)height - 1L) 6209 / FRACTION_MULT; 6210 line_size = plines_win_col(wp, lnum, (long)(wp->w_cursor.col)) - 1; 6211 sline = wp->w_wrow - line_size; 6212 6213 if (sline >= 0) 6214 { 6215 // Make sure the whole cursor line is visible, if possible. 6216 int rows = plines_win(wp, lnum, FALSE); 6217 6218 if (sline > wp->w_height - rows) 6219 { 6220 sline = wp->w_height - rows; 6221 wp->w_wrow -= rows - line_size; 6222 } 6223 } 6224 6225 if (sline < 0) 6226 { 6227 /* 6228 * Cursor line would go off top of screen if w_wrow was this high. 6229 * Make cursor line the first line in the window. If not enough 6230 * room use w_skipcol; 6231 */ 6232 wp->w_wrow = line_size; 6233 if (wp->w_wrow >= wp->w_height 6234 && (wp->w_width - win_col_off(wp)) > 0) 6235 { 6236 wp->w_skipcol += wp->w_width - win_col_off(wp); 6237 --wp->w_wrow; 6238 while (wp->w_wrow >= wp->w_height) 6239 { 6240 wp->w_skipcol += wp->w_width - win_col_off(wp) 6241 + win_col_off2(wp); 6242 --wp->w_wrow; 6243 } 6244 } 6245 } 6246 else if (sline > 0) 6247 { 6248 while (sline > 0 && lnum > 1) 6249 { 6250 #ifdef FEAT_FOLDING 6251 hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); 6252 if (lnum == 1) 6253 { 6254 // first line in buffer is folded 6255 line_size = 1; 6256 --sline; 6257 break; 6258 } 6259 #endif 6260 --lnum; 6261 #ifdef FEAT_DIFF 6262 if (lnum == wp->w_topline) 6263 line_size = plines_win_nofill(wp, lnum, TRUE) 6264 + wp->w_topfill; 6265 else 6266 #endif 6267 line_size = plines_win(wp, lnum, TRUE); 6268 sline -= line_size; 6269 } 6270 6271 if (sline < 0) 6272 { 6273 /* 6274 * Line we want at top would go off top of screen. Use next 6275 * line instead. 6276 */ 6277 #ifdef FEAT_FOLDING 6278 hasFoldingWin(wp, lnum, NULL, &lnum, TRUE, NULL); 6279 #endif 6280 lnum++; 6281 wp->w_wrow -= line_size + sline; 6282 } 6283 else if (sline > 0) 6284 { 6285 // First line of file reached, use that as topline. 6286 lnum = 1; 6287 wp->w_wrow -= sline; 6288 } 6289 } 6290 set_topline(wp, lnum); 6291 } 6292 6293 if (wp == curwin) 6294 { 6295 if (get_scrolloff_value()) 6296 update_topline(); 6297 curs_columns(FALSE); // validate w_wrow 6298 } 6299 if (prev_height > 0) 6300 wp->w_prev_fraction_row = wp->w_wrow; 6301 6302 win_comp_scroll(wp); 6303 redraw_win_later(wp, SOME_VALID); 6304 wp->w_redr_status = TRUE; 6305 invalidate_botline_win(wp); 6306 } 6307 6308 /* 6309 * Set the width of a window. 6310 */ 6311 void 6312 win_new_width(win_T *wp, int width) 6313 { 6314 wp->w_width = width; 6315 wp->w_lines_valid = 0; 6316 changed_line_abv_curs_win(wp); 6317 invalidate_botline_win(wp); 6318 if (wp == curwin) 6319 { 6320 update_topline(); 6321 curs_columns(TRUE); // validate w_wrow 6322 } 6323 redraw_win_later(wp, NOT_VALID); 6324 wp->w_redr_status = TRUE; 6325 } 6326 6327 void 6328 win_comp_scroll(win_T *wp) 6329 { 6330 #if defined(FEAT_EVAL) 6331 int old_w_p_scr = wp->w_p_scr; 6332 #endif 6333 6334 wp->w_p_scr = ((unsigned)wp->w_height >> 1); 6335 if (wp->w_p_scr == 0) 6336 wp->w_p_scr = 1; 6337 #if defined(FEAT_EVAL) 6338 if (wp->w_p_scr != old_w_p_scr) 6339 { 6340 // Used by "verbose set scroll". 6341 wp->w_p_script_ctx[WV_SCROLL].sc_sid = SID_WINLAYOUT; 6342 wp->w_p_script_ctx[WV_SCROLL].sc_lnum = 0; 6343 } 6344 #endif 6345 } 6346 6347 /* 6348 * command_height: called whenever p_ch has been changed 6349 */ 6350 void 6351 command_height(void) 6352 { 6353 int h; 6354 frame_T *frp; 6355 int old_p_ch = curtab->tp_ch_used; 6356 6357 // Use the value of p_ch that we remembered. This is needed for when the 6358 // GUI starts up, we can't be sure in what order things happen. And when 6359 // p_ch was changed in another tab page. 6360 curtab->tp_ch_used = p_ch; 6361 6362 // Find bottom frame with width of screen. 6363 frp = lastwin->w_frame; 6364 while (frp->fr_width != Columns && frp->fr_parent != NULL) 6365 frp = frp->fr_parent; 6366 6367 // Avoid changing the height of a window with 'winfixheight' set. 6368 while (frp->fr_prev != NULL && frp->fr_layout == FR_LEAF 6369 && frp->fr_win->w_p_wfh) 6370 frp = frp->fr_prev; 6371 6372 if (starting != NO_SCREEN) 6373 { 6374 cmdline_row = Rows - p_ch; 6375 6376 if (p_ch > old_p_ch) // p_ch got bigger 6377 { 6378 while (p_ch > old_p_ch) 6379 { 6380 if (frp == NULL) 6381 { 6382 emsg(_(e_noroom)); 6383 p_ch = old_p_ch; 6384 curtab->tp_ch_used = p_ch; 6385 cmdline_row = Rows - p_ch; 6386 break; 6387 } 6388 h = frp->fr_height - frame_minheight(frp, NULL); 6389 if (h > p_ch - old_p_ch) 6390 h = p_ch - old_p_ch; 6391 old_p_ch += h; 6392 frame_add_height(frp, -h); 6393 frp = frp->fr_prev; 6394 } 6395 6396 // Recompute window positions. 6397 (void)win_comp_pos(); 6398 6399 // clear the lines added to cmdline 6400 if (full_screen) 6401 screen_fill((int)(cmdline_row), (int)Rows, 0, 6402 (int)Columns, ' ', ' ', 0); 6403 msg_row = cmdline_row; 6404 redraw_cmdline = TRUE; 6405 return; 6406 } 6407 6408 if (msg_row < cmdline_row) 6409 msg_row = cmdline_row; 6410 redraw_cmdline = TRUE; 6411 } 6412 frame_add_height(frp, (int)(old_p_ch - p_ch)); 6413 6414 // Recompute window positions. 6415 if (frp != lastwin->w_frame) 6416 (void)win_comp_pos(); 6417 } 6418 6419 /* 6420 * Resize frame "frp" to be "n" lines higher (negative for less high). 6421 * Also resize the frames it is contained in. 6422 */ 6423 static void 6424 frame_add_height(frame_T *frp, int n) 6425 { 6426 frame_new_height(frp, frp->fr_height + n, FALSE, FALSE); 6427 for (;;) 6428 { 6429 frp = frp->fr_parent; 6430 if (frp == NULL) 6431 break; 6432 frp->fr_height += n; 6433 } 6434 } 6435 6436 /* 6437 * Add or remove a status line for the bottom window(s), according to the 6438 * value of 'laststatus'. 6439 */ 6440 void 6441 last_status( 6442 int morewin) // pretend there are two or more windows 6443 { 6444 // Don't make a difference between horizontal or vertical split. 6445 last_status_rec(topframe, (p_ls == 2 6446 || (p_ls == 1 && (morewin || !ONE_WINDOW)))); 6447 } 6448 6449 static void 6450 last_status_rec(frame_T *fr, int statusline) 6451 { 6452 frame_T *fp; 6453 win_T *wp; 6454 6455 if (fr->fr_layout == FR_LEAF) 6456 { 6457 wp = fr->fr_win; 6458 if (wp->w_status_height != 0 && !statusline) 6459 { 6460 // remove status line 6461 win_new_height(wp, wp->w_height + 1); 6462 wp->w_status_height = 0; 6463 comp_col(); 6464 } 6465 else if (wp->w_status_height == 0 && statusline) 6466 { 6467 // Find a frame to take a line from. 6468 fp = fr; 6469 while (fp->fr_height <= frame_minheight(fp, NULL)) 6470 { 6471 if (fp == topframe) 6472 { 6473 emsg(_(e_noroom)); 6474 return; 6475 } 6476 // In a column of frames: go to frame above. If already at 6477 // the top or in a row of frames: go to parent. 6478 if (fp->fr_parent->fr_layout == FR_COL && fp->fr_prev != NULL) 6479 fp = fp->fr_prev; 6480 else 6481 fp = fp->fr_parent; 6482 } 6483 wp->w_status_height = 1; 6484 if (fp != fr) 6485 { 6486 frame_new_height(fp, fp->fr_height - 1, FALSE, FALSE); 6487 frame_fix_height(wp); 6488 (void)win_comp_pos(); 6489 } 6490 else 6491 win_new_height(wp, wp->w_height - 1); 6492 comp_col(); 6493 redraw_all_later(SOME_VALID); 6494 } 6495 } 6496 else if (fr->fr_layout == FR_ROW) 6497 { 6498 // vertically split windows, set status line for each one 6499 FOR_ALL_FRAMES(fp, fr->fr_child) 6500 last_status_rec(fp, statusline); 6501 } 6502 else 6503 { 6504 // horizontally split window, set status line for last one 6505 for (fp = fr->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 6506 ; 6507 last_status_rec(fp, statusline); 6508 } 6509 } 6510 6511 /* 6512 * Return the number of lines used by the tab page line. 6513 */ 6514 int 6515 tabline_height(void) 6516 { 6517 #ifdef FEAT_GUI_TABLINE 6518 // When the GUI has the tabline then this always returns zero. 6519 if (gui_use_tabline()) 6520 return 0; 6521 #endif 6522 switch (p_stal) 6523 { 6524 case 0: return 0; 6525 case 1: return (first_tabpage->tp_next == NULL) ? 0 : 1; 6526 } 6527 return 1; 6528 } 6529 6530 /* 6531 * Return the minimal number of rows that is needed on the screen to display 6532 * the current number of windows. 6533 */ 6534 int 6535 min_rows(void) 6536 { 6537 int total; 6538 tabpage_T *tp; 6539 int n; 6540 6541 if (firstwin == NULL) // not initialized yet 6542 return MIN_LINES; 6543 6544 total = 0; 6545 FOR_ALL_TABPAGES(tp) 6546 { 6547 n = frame_minheight(tp->tp_topframe, NULL); 6548 if (total < n) 6549 total = n; 6550 } 6551 total += tabline_height(); 6552 total += 1; // count the room for the command line 6553 return total; 6554 } 6555 6556 /* 6557 * Return TRUE if there is only one window and only one tab page, not 6558 * counting a help or preview window, unless it is the current window. 6559 * Does not count unlisted windows. 6560 */ 6561 int 6562 only_one_window(void) 6563 { 6564 int count = 0; 6565 win_T *wp; 6566 6567 #if defined(FEAT_PROP_POPUP) 6568 // If the current window is a popup then there always is another window. 6569 if (popup_is_popup(curwin)) 6570 return FALSE; 6571 #endif 6572 6573 // If there is another tab page there always is another window. 6574 if (first_tabpage->tp_next != NULL) 6575 return FALSE; 6576 6577 FOR_ALL_WINDOWS(wp) 6578 if (wp->w_buffer != NULL 6579 && (!((bt_help(wp->w_buffer) && !bt_help(curbuf)) 6580 # ifdef FEAT_QUICKFIX 6581 || wp->w_p_pvw 6582 # endif 6583 ) || wp == curwin) && wp != aucmd_win) 6584 ++count; 6585 return (count <= 1); 6586 } 6587 6588 /* 6589 * Correct the cursor line number in other windows. Used after changing the 6590 * current buffer, and before applying autocommands. 6591 * When "do_curwin" is TRUE, also check current window. 6592 */ 6593 void 6594 check_lnums(int do_curwin) 6595 { 6596 win_T *wp; 6597 tabpage_T *tp; 6598 6599 FOR_ALL_TAB_WINDOWS(tp, wp) 6600 if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) 6601 { 6602 // save the original cursor position and topline 6603 wp->w_save_cursor.w_cursor_save = wp->w_cursor; 6604 wp->w_save_cursor.w_topline_save = wp->w_topline; 6605 6606 if (wp->w_cursor.lnum > curbuf->b_ml.ml_line_count) 6607 wp->w_cursor.lnum = curbuf->b_ml.ml_line_count; 6608 if (wp->w_topline > curbuf->b_ml.ml_line_count) 6609 wp->w_topline = curbuf->b_ml.ml_line_count; 6610 6611 // save the corrected cursor position and topline 6612 wp->w_save_cursor.w_cursor_corr = wp->w_cursor; 6613 wp->w_save_cursor.w_topline_corr = wp->w_topline; 6614 } 6615 } 6616 6617 /* 6618 * Reset cursor and topline to its stored values from check_lnums(). 6619 * check_lnums() must have been called first! 6620 */ 6621 void 6622 reset_lnums() 6623 { 6624 win_T *wp; 6625 tabpage_T *tp; 6626 6627 FOR_ALL_TAB_WINDOWS(tp, wp) 6628 if (wp->w_buffer == curbuf) 6629 { 6630 // Restore the value if the autocommand didn't change it. 6631 if (EQUAL_POS(wp->w_save_cursor.w_cursor_corr, wp->w_cursor)) 6632 wp->w_cursor = wp->w_save_cursor.w_cursor_save; 6633 if (wp->w_save_cursor.w_topline_corr == wp->w_topline) 6634 wp->w_topline = wp->w_save_cursor.w_topline_save; 6635 } 6636 } 6637 6638 /* 6639 * A snapshot of the window sizes, to restore them after closing the help 6640 * window. 6641 * Only these fields are used: 6642 * fr_layout 6643 * fr_width 6644 * fr_height 6645 * fr_next 6646 * fr_child 6647 * fr_win (only valid for the old curwin, NULL otherwise) 6648 */ 6649 6650 /* 6651 * Create a snapshot of the current frame sizes. 6652 */ 6653 void 6654 make_snapshot(int idx) 6655 { 6656 clear_snapshot(curtab, idx); 6657 make_snapshot_rec(topframe, &curtab->tp_snapshot[idx]); 6658 } 6659 6660 static void 6661 make_snapshot_rec(frame_T *fr, frame_T **frp) 6662 { 6663 *frp = ALLOC_CLEAR_ONE(frame_T); 6664 if (*frp == NULL) 6665 return; 6666 (*frp)->fr_layout = fr->fr_layout; 6667 (*frp)->fr_width = fr->fr_width; 6668 (*frp)->fr_height = fr->fr_height; 6669 if (fr->fr_next != NULL) 6670 make_snapshot_rec(fr->fr_next, &((*frp)->fr_next)); 6671 if (fr->fr_child != NULL) 6672 make_snapshot_rec(fr->fr_child, &((*frp)->fr_child)); 6673 if (fr->fr_layout == FR_LEAF && fr->fr_win == curwin) 6674 (*frp)->fr_win = curwin; 6675 } 6676 6677 /* 6678 * Remove any existing snapshot. 6679 */ 6680 static void 6681 clear_snapshot(tabpage_T *tp, int idx) 6682 { 6683 clear_snapshot_rec(tp->tp_snapshot[idx]); 6684 tp->tp_snapshot[idx] = NULL; 6685 } 6686 6687 static void 6688 clear_snapshot_rec(frame_T *fr) 6689 { 6690 if (fr != NULL) 6691 { 6692 clear_snapshot_rec(fr->fr_next); 6693 clear_snapshot_rec(fr->fr_child); 6694 vim_free(fr); 6695 } 6696 } 6697 6698 /* 6699 * Restore a previously created snapshot, if there is any. 6700 * This is only done if the screen size didn't change and the window layout is 6701 * still the same. 6702 */ 6703 void 6704 restore_snapshot( 6705 int idx, 6706 int close_curwin) // closing current window 6707 { 6708 win_T *wp; 6709 6710 if (curtab->tp_snapshot[idx] != NULL 6711 && curtab->tp_snapshot[idx]->fr_width == topframe->fr_width 6712 && curtab->tp_snapshot[idx]->fr_height == topframe->fr_height 6713 && check_snapshot_rec(curtab->tp_snapshot[idx], topframe) == OK) 6714 { 6715 wp = restore_snapshot_rec(curtab->tp_snapshot[idx], topframe); 6716 win_comp_pos(); 6717 if (wp != NULL && close_curwin) 6718 win_goto(wp); 6719 redraw_all_later(NOT_VALID); 6720 } 6721 clear_snapshot(curtab, idx); 6722 } 6723 6724 /* 6725 * Check if frames "sn" and "fr" have the same layout, same following frames 6726 * and same children. And the window pointer is valid. 6727 */ 6728 static int 6729 check_snapshot_rec(frame_T *sn, frame_T *fr) 6730 { 6731 if (sn->fr_layout != fr->fr_layout 6732 || (sn->fr_next == NULL) != (fr->fr_next == NULL) 6733 || (sn->fr_child == NULL) != (fr->fr_child == NULL) 6734 || (sn->fr_next != NULL 6735 && check_snapshot_rec(sn->fr_next, fr->fr_next) == FAIL) 6736 || (sn->fr_child != NULL 6737 && check_snapshot_rec(sn->fr_child, fr->fr_child) == FAIL) 6738 || (sn->fr_win != NULL && !win_valid(sn->fr_win))) 6739 return FAIL; 6740 return OK; 6741 } 6742 6743 /* 6744 * Copy the size of snapshot frame "sn" to frame "fr". Do the same for all 6745 * following frames and children. 6746 * Returns a pointer to the old current window, or NULL. 6747 */ 6748 static win_T * 6749 restore_snapshot_rec(frame_T *sn, frame_T *fr) 6750 { 6751 win_T *wp = NULL; 6752 win_T *wp2; 6753 6754 fr->fr_height = sn->fr_height; 6755 fr->fr_width = sn->fr_width; 6756 if (fr->fr_layout == FR_LEAF) 6757 { 6758 frame_new_height(fr, fr->fr_height, FALSE, FALSE); 6759 frame_new_width(fr, fr->fr_width, FALSE, FALSE); 6760 wp = sn->fr_win; 6761 } 6762 if (sn->fr_next != NULL) 6763 { 6764 wp2 = restore_snapshot_rec(sn->fr_next, fr->fr_next); 6765 if (wp2 != NULL) 6766 wp = wp2; 6767 } 6768 if (sn->fr_child != NULL) 6769 { 6770 wp2 = restore_snapshot_rec(sn->fr_child, fr->fr_child); 6771 if (wp2 != NULL) 6772 wp = wp2; 6773 } 6774 return wp; 6775 } 6776 6777 #if defined(FEAT_GUI) || defined(PROTO) 6778 /* 6779 * Return TRUE if there is any vertically split window. 6780 */ 6781 int 6782 win_hasvertsplit(void) 6783 { 6784 frame_T *fr; 6785 6786 if (topframe->fr_layout == FR_ROW) 6787 return TRUE; 6788 6789 if (topframe->fr_layout == FR_COL) 6790 FOR_ALL_FRAMES(fr, topframe->fr_child) 6791 if (fr->fr_layout == FR_ROW) 6792 return TRUE; 6793 6794 return FALSE; 6795 } 6796 #endif 6797 6798 #if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO) 6799 int 6800 get_win_number(win_T *wp, win_T *first_win) 6801 { 6802 int i = 1; 6803 win_T *w; 6804 6805 for (w = first_win; w != NULL && w != wp; w = W_NEXT(w)) 6806 ++i; 6807 6808 if (w == NULL) 6809 return 0; 6810 else 6811 return i; 6812 } 6813 6814 int 6815 get_tab_number(tabpage_T *tp UNUSED) 6816 { 6817 int i = 1; 6818 tabpage_T *t; 6819 6820 for (t = first_tabpage; t != NULL && t != tp; t = t->tp_next) 6821 ++i; 6822 6823 if (t == NULL) 6824 return 0; 6825 else 6826 return i; 6827 } 6828 #endif 6829 6830 /* 6831 * Return TRUE if "topfrp" and its children are at the right height. 6832 */ 6833 static int 6834 frame_check_height(frame_T *topfrp, int height) 6835 { 6836 frame_T *frp; 6837 6838 if (topfrp->fr_height != height) 6839 return FALSE; 6840 6841 if (topfrp->fr_layout == FR_ROW) 6842 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6843 if (frp->fr_height != height) 6844 return FALSE; 6845 6846 return TRUE; 6847 } 6848 6849 /* 6850 * Return TRUE if "topfrp" and its children are at the right width. 6851 */ 6852 static int 6853 frame_check_width(frame_T *topfrp, int width) 6854 { 6855 frame_T *frp; 6856 6857 if (topfrp->fr_width != width) 6858 return FALSE; 6859 6860 if (topfrp->fr_layout == FR_COL) 6861 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6862 if (frp->fr_width != width) 6863 return FALSE; 6864 6865 return TRUE; 6866 } 6867 6868 #if defined(FEAT_SYN_HL) || defined(PROTO) 6869 /* 6870 * Simple int comparison function for use with qsort() 6871 */ 6872 static int 6873 int_cmp(const void *a, const void *b) 6874 { 6875 return *(const int *)a - *(const int *)b; 6876 } 6877 6878 /* 6879 * Handle setting 'colorcolumn' or 'textwidth' in window "wp". 6880 * Returns error message, NULL if it's OK. 6881 */ 6882 char * 6883 check_colorcolumn(win_T *wp) 6884 { 6885 char_u *s; 6886 int col; 6887 int count = 0; 6888 int color_cols[256]; 6889 int i; 6890 int j = 0; 6891 6892 if (wp->w_buffer == NULL) 6893 return NULL; // buffer was closed 6894 6895 for (s = wp->w_p_cc; *s != NUL && count < 255;) 6896 { 6897 if (*s == '-' || *s == '+') 6898 { 6899 // -N and +N: add to 'textwidth' 6900 col = (*s == '-') ? -1 : 1; 6901 ++s; 6902 if (!VIM_ISDIGIT(*s)) 6903 return e_invarg; 6904 col = col * getdigits(&s); 6905 if (wp->w_buffer->b_p_tw == 0) 6906 goto skip; // 'textwidth' not set, skip this item 6907 col += wp->w_buffer->b_p_tw; 6908 if (col < 0) 6909 goto skip; 6910 } 6911 else if (VIM_ISDIGIT(*s)) 6912 col = getdigits(&s); 6913 else 6914 return e_invarg; 6915 color_cols[count++] = col - 1; // 1-based to 0-based 6916 skip: 6917 if (*s == NUL) 6918 break; 6919 if (*s != ',') 6920 return e_invarg; 6921 if (*++s == NUL) 6922 return e_invarg; // illegal trailing comma as in "set cc=80," 6923 } 6924 6925 vim_free(wp->w_p_cc_cols); 6926 if (count == 0) 6927 wp->w_p_cc_cols = NULL; 6928 else 6929 { 6930 wp->w_p_cc_cols = ALLOC_MULT(int, count + 1); 6931 if (wp->w_p_cc_cols != NULL) 6932 { 6933 // sort the columns for faster usage on screen redraw inside 6934 // win_line() 6935 qsort(color_cols, count, sizeof(int), int_cmp); 6936 6937 for (i = 0; i < count; ++i) 6938 // skip duplicates 6939 if (j == 0 || wp->w_p_cc_cols[j - 1] != color_cols[i]) 6940 wp->w_p_cc_cols[j++] = color_cols[i]; 6941 wp->w_p_cc_cols[j] = -1; // end marker 6942 } 6943 } 6944 6945 return NULL; // no error 6946 } 6947 #endif 6948