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_invalid_in_cmdline_window)); \ 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_no_alternate_file)); 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 if (Prenum > 0) 754 vim_snprintf((char *)bufp, bufsize, "%s %ld", cmd, Prenum); 755 else 756 STRCPY(bufp, cmd); 757 } 758 759 /* 760 * If "split_disallowed" is set given an error and return FAIL. 761 * Otherwise return OK. 762 */ 763 static int 764 check_split_disallowed() 765 { 766 if (split_disallowed > 0) 767 { 768 emsg(_("E242: Can't split a window while closing another")); 769 return FAIL; 770 } 771 if (curwin->w_buffer->b_locked_split) 772 { 773 emsg(_(e_cannot_split_window_when_closing_buffer)); 774 return FAIL; 775 } 776 return OK; 777 } 778 779 /* 780 * split the current window, implements CTRL-W s and :split 781 * 782 * "size" is the height or width for the new window, 0 to use half of current 783 * height or width. 784 * 785 * "flags": 786 * WSP_ROOM: require enough room for new window 787 * WSP_VERT: vertical split. 788 * WSP_TOP: open window at the top-left of the shell (help window). 789 * WSP_BOT: open window at the bottom-right of the shell (quickfix window). 790 * WSP_HELP: creating the help window, keep layout snapshot 791 * 792 * return FAIL for failure, OK otherwise 793 */ 794 int 795 win_split(int size, int flags) 796 { 797 if (ERROR_IF_ANY_POPUP_WINDOW) 798 return FAIL; 799 800 if (check_split_disallowed() == FAIL) 801 return FAIL; 802 803 // When the ":tab" modifier was used open a new tab page instead. 804 if (may_open_tabpage() == OK) 805 return OK; 806 807 // Add flags from ":vertical", ":topleft" and ":botright". 808 flags |= cmdmod.cmod_split; 809 if ((flags & WSP_TOP) && (flags & WSP_BOT)) 810 { 811 emsg(_("E442: Can't split topleft and botright at the same time")); 812 return FAIL; 813 } 814 815 // When creating the help window make a snapshot of the window layout. 816 // Otherwise clear the snapshot, it's now invalid. 817 if (flags & WSP_HELP) 818 make_snapshot(SNAP_HELP_IDX); 819 else 820 clear_snapshot(curtab, SNAP_HELP_IDX); 821 822 return win_split_ins(size, flags, NULL, 0); 823 } 824 825 /* 826 * When "new_wp" is NULL: split the current window in two. 827 * When "new_wp" is not NULL: insert this window at the far 828 * top/left/right/bottom. 829 * return FAIL for failure, OK otherwise 830 */ 831 int 832 win_split_ins( 833 int size, 834 int flags, 835 win_T *new_wp, 836 int dir) 837 { 838 win_T *wp = new_wp; 839 win_T *oldwin; 840 int new_size = size; 841 int i; 842 int need_status = 0; 843 int do_equal = FALSE; 844 int needed; 845 int available; 846 int oldwin_height = 0; 847 int layout; 848 frame_T *frp, *curfrp, *frp2, *prevfrp; 849 int before; 850 int minheight; 851 int wmh1; 852 int did_set_fraction = FALSE; 853 854 if (flags & WSP_TOP) 855 oldwin = firstwin; 856 else if (flags & WSP_BOT) 857 oldwin = lastwin; 858 else 859 oldwin = curwin; 860 861 // add a status line when p_ls == 1 and splitting the first window 862 if (ONE_WINDOW && p_ls == 1 && oldwin->w_status_height == 0) 863 { 864 if (VISIBLE_HEIGHT(oldwin) <= p_wmh && new_wp == NULL) 865 { 866 emsg(_(e_noroom)); 867 return FAIL; 868 } 869 need_status = STATUS_HEIGHT; 870 } 871 872 #ifdef FEAT_GUI 873 // May be needed for the scrollbars that are going to change. 874 if (gui.in_use) 875 out_flush(); 876 #endif 877 878 if (flags & WSP_VERT) 879 { 880 int wmw1; 881 int minwidth; 882 883 layout = FR_ROW; 884 885 /* 886 * Check if we are able to split the current window and compute its 887 * width. 888 */ 889 // Current window requires at least 1 space. 890 wmw1 = (p_wmw == 0 ? 1 : p_wmw); 891 needed = wmw1 + 1; 892 if (flags & WSP_ROOM) 893 needed += p_wiw - wmw1; 894 if (flags & (WSP_BOT | WSP_TOP)) 895 { 896 minwidth = frame_minwidth(topframe, NOWIN); 897 available = topframe->fr_width; 898 needed += minwidth; 899 } 900 else if (p_ea) 901 { 902 minwidth = frame_minwidth(oldwin->w_frame, NOWIN); 903 prevfrp = oldwin->w_frame; 904 for (frp = oldwin->w_frame->fr_parent; frp != NULL; 905 frp = frp->fr_parent) 906 { 907 if (frp->fr_layout == FR_ROW) 908 FOR_ALL_FRAMES(frp2, frp->fr_child) 909 if (frp2 != prevfrp) 910 minwidth += frame_minwidth(frp2, NOWIN); 911 prevfrp = frp; 912 } 913 available = topframe->fr_width; 914 needed += minwidth; 915 } 916 else 917 { 918 minwidth = frame_minwidth(oldwin->w_frame, NOWIN); 919 available = oldwin->w_frame->fr_width; 920 needed += minwidth; 921 } 922 if (available < needed && new_wp == NULL) 923 { 924 emsg(_(e_noroom)); 925 return FAIL; 926 } 927 if (new_size == 0) 928 new_size = oldwin->w_width / 2; 929 if (new_size > available - minwidth - 1) 930 new_size = available - minwidth - 1; 931 if (new_size < wmw1) 932 new_size = wmw1; 933 934 // if it doesn't fit in the current window, need win_equal() 935 if (oldwin->w_width - new_size - 1 < p_wmw) 936 do_equal = TRUE; 937 938 // We don't like to take lines for the new window from a 939 // 'winfixwidth' window. Take them from a window to the left or right 940 // instead, if possible. Add one for the separator. 941 if (oldwin->w_p_wfw) 942 win_setwidth_win(oldwin->w_width + new_size + 1, oldwin); 943 944 // Only make all windows the same width if one of them (except oldwin) 945 // is wider than one of the split windows. 946 if (!do_equal && p_ea && size == 0 && *p_ead != 'v' 947 && oldwin->w_frame->fr_parent != NULL) 948 { 949 frp = oldwin->w_frame->fr_parent->fr_child; 950 while (frp != NULL) 951 { 952 if (frp->fr_win != oldwin && frp->fr_win != NULL 953 && (frp->fr_win->w_width > new_size 954 || frp->fr_win->w_width > oldwin->w_width 955 - new_size - 1)) 956 { 957 do_equal = TRUE; 958 break; 959 } 960 frp = frp->fr_next; 961 } 962 } 963 } 964 else 965 { 966 layout = FR_COL; 967 968 /* 969 * Check if we are able to split the current window and compute its 970 * height. 971 */ 972 // Current window requires at least 1 space. 973 wmh1 = (p_wmh == 0 ? 1 : p_wmh) + WINBAR_HEIGHT(curwin); 974 needed = wmh1 + STATUS_HEIGHT; 975 if (flags & WSP_ROOM) 976 needed += p_wh - wmh1; 977 if (flags & (WSP_BOT | WSP_TOP)) 978 { 979 minheight = frame_minheight(topframe, NOWIN) + need_status; 980 available = topframe->fr_height; 981 needed += minheight; 982 } 983 else if (p_ea) 984 { 985 minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; 986 prevfrp = oldwin->w_frame; 987 for (frp = oldwin->w_frame->fr_parent; frp != NULL; 988 frp = frp->fr_parent) 989 { 990 if (frp->fr_layout == FR_COL) 991 FOR_ALL_FRAMES(frp2, frp->fr_child) 992 if (frp2 != prevfrp) 993 minheight += frame_minheight(frp2, NOWIN); 994 prevfrp = frp; 995 } 996 available = topframe->fr_height; 997 needed += minheight; 998 } 999 else 1000 { 1001 minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; 1002 available = oldwin->w_frame->fr_height; 1003 needed += minheight; 1004 } 1005 if (available < needed && new_wp == NULL) 1006 { 1007 emsg(_(e_noroom)); 1008 return FAIL; 1009 } 1010 oldwin_height = oldwin->w_height; 1011 if (need_status) 1012 { 1013 oldwin->w_status_height = STATUS_HEIGHT; 1014 oldwin_height -= STATUS_HEIGHT; 1015 } 1016 if (new_size == 0) 1017 new_size = oldwin_height / 2; 1018 if (new_size > available - minheight - STATUS_HEIGHT) 1019 new_size = available - minheight - STATUS_HEIGHT; 1020 if (new_size < wmh1) 1021 new_size = wmh1; 1022 1023 // if it doesn't fit in the current window, need win_equal() 1024 if (oldwin_height - new_size - STATUS_HEIGHT < p_wmh) 1025 do_equal = TRUE; 1026 1027 // We don't like to take lines for the new window from a 1028 // 'winfixheight' window. Take them from a window above or below 1029 // instead, if possible. 1030 if (oldwin->w_p_wfh) 1031 { 1032 // Set w_fraction now so that the cursor keeps the same relative 1033 // vertical position using the old height. 1034 set_fraction(oldwin); 1035 did_set_fraction = TRUE; 1036 1037 win_setheight_win(oldwin->w_height + new_size + STATUS_HEIGHT, 1038 oldwin); 1039 oldwin_height = oldwin->w_height; 1040 if (need_status) 1041 oldwin_height -= STATUS_HEIGHT; 1042 } 1043 1044 // Only make all windows the same height if one of them (except oldwin) 1045 // is higher than one of the split windows. 1046 if (!do_equal && p_ea && size == 0 && *p_ead != 'h' 1047 && oldwin->w_frame->fr_parent != NULL) 1048 { 1049 frp = oldwin->w_frame->fr_parent->fr_child; 1050 while (frp != NULL) 1051 { 1052 if (frp->fr_win != oldwin && frp->fr_win != NULL 1053 && (frp->fr_win->w_height > new_size 1054 || frp->fr_win->w_height > oldwin_height - new_size 1055 - STATUS_HEIGHT)) 1056 { 1057 do_equal = TRUE; 1058 break; 1059 } 1060 frp = frp->fr_next; 1061 } 1062 } 1063 } 1064 1065 /* 1066 * allocate new window structure and link it in the window list 1067 */ 1068 if ((flags & WSP_TOP) == 0 1069 && ((flags & WSP_BOT) 1070 || (flags & WSP_BELOW) 1071 || (!(flags & WSP_ABOVE) 1072 && ( (flags & WSP_VERT) ? p_spr : p_sb)))) 1073 { 1074 // new window below/right of current one 1075 if (new_wp == NULL) 1076 wp = win_alloc(oldwin, FALSE); 1077 else 1078 win_append(oldwin, wp); 1079 } 1080 else 1081 { 1082 if (new_wp == NULL) 1083 wp = win_alloc(oldwin->w_prev, FALSE); 1084 else 1085 win_append(oldwin->w_prev, wp); 1086 } 1087 1088 if (new_wp == NULL) 1089 { 1090 if (wp == NULL) 1091 return FAIL; 1092 1093 new_frame(wp); 1094 if (wp->w_frame == NULL) 1095 { 1096 win_free(wp, NULL); 1097 return FAIL; 1098 } 1099 1100 // make the contents of the new window the same as the current one 1101 win_init(wp, curwin, flags); 1102 } 1103 1104 /* 1105 * Reorganise the tree of frames to insert the new window. 1106 */ 1107 if (flags & (WSP_TOP | WSP_BOT)) 1108 { 1109 if ((topframe->fr_layout == FR_COL && (flags & WSP_VERT) == 0) 1110 || (topframe->fr_layout == FR_ROW && (flags & WSP_VERT) != 0)) 1111 { 1112 curfrp = topframe->fr_child; 1113 if (flags & WSP_BOT) 1114 while (curfrp->fr_next != NULL) 1115 curfrp = curfrp->fr_next; 1116 } 1117 else 1118 curfrp = topframe; 1119 before = (flags & WSP_TOP); 1120 } 1121 else 1122 { 1123 curfrp = oldwin->w_frame; 1124 if (flags & WSP_BELOW) 1125 before = FALSE; 1126 else if (flags & WSP_ABOVE) 1127 before = TRUE; 1128 else if (flags & WSP_VERT) 1129 before = !p_spr; 1130 else 1131 before = !p_sb; 1132 } 1133 if (curfrp->fr_parent == NULL || curfrp->fr_parent->fr_layout != layout) 1134 { 1135 // Need to create a new frame in the tree to make a branch. 1136 frp = ALLOC_CLEAR_ONE(frame_T); 1137 *frp = *curfrp; 1138 curfrp->fr_layout = layout; 1139 frp->fr_parent = curfrp; 1140 frp->fr_next = NULL; 1141 frp->fr_prev = NULL; 1142 curfrp->fr_child = frp; 1143 curfrp->fr_win = NULL; 1144 curfrp = frp; 1145 if (frp->fr_win != NULL) 1146 oldwin->w_frame = frp; 1147 else 1148 FOR_ALL_FRAMES(frp, frp->fr_child) 1149 frp->fr_parent = curfrp; 1150 } 1151 1152 if (new_wp == NULL) 1153 frp = wp->w_frame; 1154 else 1155 frp = new_wp->w_frame; 1156 frp->fr_parent = curfrp->fr_parent; 1157 1158 // Insert the new frame at the right place in the frame list. 1159 if (before) 1160 frame_insert(curfrp, frp); 1161 else 1162 frame_append(curfrp, frp); 1163 1164 // Set w_fraction now so that the cursor keeps the same relative 1165 // vertical position. 1166 if (!did_set_fraction) 1167 set_fraction(oldwin); 1168 wp->w_fraction = oldwin->w_fraction; 1169 1170 if (flags & WSP_VERT) 1171 { 1172 wp->w_p_scr = curwin->w_p_scr; 1173 1174 if (need_status) 1175 { 1176 win_new_height(oldwin, oldwin->w_height - 1); 1177 oldwin->w_status_height = need_status; 1178 } 1179 if (flags & (WSP_TOP | WSP_BOT)) 1180 { 1181 // set height and row of new window to full height 1182 wp->w_winrow = tabline_height(); 1183 win_new_height(wp, curfrp->fr_height - (p_ls > 0) 1184 - WINBAR_HEIGHT(wp)); 1185 wp->w_status_height = (p_ls > 0); 1186 } 1187 else 1188 { 1189 // height and row of new window is same as current window 1190 wp->w_winrow = oldwin->w_winrow; 1191 win_new_height(wp, VISIBLE_HEIGHT(oldwin)); 1192 wp->w_status_height = oldwin->w_status_height; 1193 } 1194 frp->fr_height = curfrp->fr_height; 1195 1196 // "new_size" of the current window goes to the new window, use 1197 // one column for the vertical separator 1198 win_new_width(wp, new_size); 1199 if (before) 1200 wp->w_vsep_width = 1; 1201 else 1202 { 1203 wp->w_vsep_width = oldwin->w_vsep_width; 1204 oldwin->w_vsep_width = 1; 1205 } 1206 if (flags & (WSP_TOP | WSP_BOT)) 1207 { 1208 if (flags & WSP_BOT) 1209 frame_add_vsep(curfrp); 1210 // Set width of neighbor frame 1211 frame_new_width(curfrp, curfrp->fr_width 1212 - (new_size + ((flags & WSP_TOP) != 0)), flags & WSP_TOP, 1213 FALSE); 1214 } 1215 else 1216 win_new_width(oldwin, oldwin->w_width - (new_size + 1)); 1217 if (before) // new window left of current one 1218 { 1219 wp->w_wincol = oldwin->w_wincol; 1220 oldwin->w_wincol += new_size + 1; 1221 } 1222 else // new window right of current one 1223 wp->w_wincol = oldwin->w_wincol + oldwin->w_width + 1; 1224 frame_fix_width(oldwin); 1225 frame_fix_width(wp); 1226 } 1227 else 1228 { 1229 // width and column of new window is same as current window 1230 if (flags & (WSP_TOP | WSP_BOT)) 1231 { 1232 wp->w_wincol = 0; 1233 win_new_width(wp, Columns); 1234 wp->w_vsep_width = 0; 1235 } 1236 else 1237 { 1238 wp->w_wincol = oldwin->w_wincol; 1239 win_new_width(wp, oldwin->w_width); 1240 wp->w_vsep_width = oldwin->w_vsep_width; 1241 } 1242 frp->fr_width = curfrp->fr_width; 1243 1244 // "new_size" of the current window goes to the new window, use 1245 // one row for the status line 1246 win_new_height(wp, new_size); 1247 if (flags & (WSP_TOP | WSP_BOT)) 1248 { 1249 int new_fr_height = curfrp->fr_height - new_size 1250 + WINBAR_HEIGHT(wp) ; 1251 1252 if (!((flags & WSP_BOT) && p_ls == 0)) 1253 new_fr_height -= STATUS_HEIGHT; 1254 frame_new_height(curfrp, new_fr_height, flags & WSP_TOP, FALSE); 1255 } 1256 else 1257 win_new_height(oldwin, oldwin_height - (new_size + STATUS_HEIGHT)); 1258 if (before) // new window above current one 1259 { 1260 wp->w_winrow = oldwin->w_winrow; 1261 wp->w_status_height = STATUS_HEIGHT; 1262 oldwin->w_winrow += wp->w_height + STATUS_HEIGHT; 1263 } 1264 else // new window below current one 1265 { 1266 wp->w_winrow = oldwin->w_winrow + VISIBLE_HEIGHT(oldwin) 1267 + STATUS_HEIGHT; 1268 wp->w_status_height = oldwin->w_status_height; 1269 if (!(flags & WSP_BOT)) 1270 oldwin->w_status_height = STATUS_HEIGHT; 1271 } 1272 if (flags & WSP_BOT) 1273 frame_add_statusline(curfrp); 1274 frame_fix_height(wp); 1275 frame_fix_height(oldwin); 1276 } 1277 1278 if (flags & (WSP_TOP | WSP_BOT)) 1279 (void)win_comp_pos(); 1280 1281 // Both windows need redrawing. Update all status lines, in case they 1282 // show something related to the window count or position. 1283 redraw_win_later(wp, NOT_VALID); 1284 redraw_win_later(oldwin, NOT_VALID); 1285 status_redraw_all(); 1286 1287 if (need_status) 1288 { 1289 msg_row = Rows - 1; 1290 msg_col = sc_col; 1291 msg_clr_eos_force(); // Old command/ruler may still be there 1292 comp_col(); 1293 msg_row = Rows - 1; 1294 msg_col = 0; // put position back at start of line 1295 } 1296 1297 /* 1298 * equalize the window sizes. 1299 */ 1300 if (do_equal || dir != 0) 1301 win_equal(wp, TRUE, 1302 (flags & WSP_VERT) ? (dir == 'v' ? 'b' : 'h') 1303 : dir == 'h' ? 'b' : 'v'); 1304 1305 // Don't change the window height/width to 'winheight' / 'winwidth' if a 1306 // size was given. 1307 if (flags & WSP_VERT) 1308 { 1309 i = p_wiw; 1310 if (size != 0) 1311 p_wiw = size; 1312 1313 # ifdef FEAT_GUI 1314 // When 'guioptions' includes 'L' or 'R' may have to add scrollbars. 1315 if (gui.in_use) 1316 gui_init_which_components(NULL); 1317 # endif 1318 } 1319 else 1320 { 1321 i = p_wh; 1322 if (size != 0) 1323 p_wh = size; 1324 } 1325 1326 #ifdef FEAT_JUMPLIST 1327 // Keep same changelist position in new window. 1328 wp->w_changelistidx = oldwin->w_changelistidx; 1329 #endif 1330 1331 /* 1332 * make the new window the current window 1333 */ 1334 win_enter_ext(wp, FALSE, FALSE, TRUE, TRUE, TRUE); 1335 if (flags & WSP_VERT) 1336 p_wiw = i; 1337 else 1338 p_wh = i; 1339 1340 return OK; 1341 } 1342 1343 1344 /* 1345 * Initialize window "newp" from window "oldp". 1346 * Used when splitting a window and when creating a new tab page. 1347 * The windows will both edit the same buffer. 1348 * WSP_NEWLOC may be specified in flags to prevent the location list from 1349 * being copied. 1350 */ 1351 static void 1352 win_init(win_T *newp, win_T *oldp, int flags UNUSED) 1353 { 1354 int i; 1355 1356 newp->w_buffer = oldp->w_buffer; 1357 #ifdef FEAT_SYN_HL 1358 newp->w_s = &(oldp->w_buffer->b_s); 1359 #endif 1360 oldp->w_buffer->b_nwindows++; 1361 newp->w_cursor = oldp->w_cursor; 1362 newp->w_valid = 0; 1363 newp->w_curswant = oldp->w_curswant; 1364 newp->w_set_curswant = oldp->w_set_curswant; 1365 newp->w_topline = oldp->w_topline; 1366 #ifdef FEAT_DIFF 1367 newp->w_topfill = oldp->w_topfill; 1368 #endif 1369 newp->w_leftcol = oldp->w_leftcol; 1370 newp->w_pcmark = oldp->w_pcmark; 1371 newp->w_prev_pcmark = oldp->w_prev_pcmark; 1372 newp->w_alt_fnum = oldp->w_alt_fnum; 1373 newp->w_wrow = oldp->w_wrow; 1374 newp->w_fraction = oldp->w_fraction; 1375 newp->w_prev_fraction_row = oldp->w_prev_fraction_row; 1376 #ifdef FEAT_JUMPLIST 1377 copy_jumplist(oldp, newp); 1378 #endif 1379 #ifdef FEAT_QUICKFIX 1380 if (flags & WSP_NEWLOC) 1381 { 1382 // Don't copy the location list. 1383 newp->w_llist = NULL; 1384 newp->w_llist_ref = NULL; 1385 } 1386 else 1387 copy_loclist_stack(oldp, newp); 1388 #endif 1389 newp->w_localdir = (oldp->w_localdir == NULL) 1390 ? NULL : vim_strsave(oldp->w_localdir); 1391 newp->w_prevdir = (oldp->w_prevdir == NULL) 1392 ? NULL : vim_strsave(oldp->w_prevdir); 1393 1394 // copy tagstack and folds 1395 for (i = 0; i < oldp->w_tagstacklen; i++) 1396 { 1397 taggy_T *tag = &newp->w_tagstack[i]; 1398 *tag = oldp->w_tagstack[i]; 1399 if (tag->tagname != NULL) 1400 tag->tagname = vim_strsave(tag->tagname); 1401 if (tag->user_data != NULL) 1402 tag->user_data = vim_strsave(tag->user_data); 1403 } 1404 newp->w_tagstackidx = oldp->w_tagstackidx; 1405 newp->w_tagstacklen = oldp->w_tagstacklen; 1406 #ifdef FEAT_FOLDING 1407 copyFoldingState(oldp, newp); 1408 #endif 1409 1410 win_init_some(newp, oldp); 1411 1412 #ifdef FEAT_SYN_HL 1413 check_colorcolumn(newp); 1414 #endif 1415 } 1416 1417 /* 1418 * Initialize window "newp" from window "old". 1419 * Only the essential things are copied. 1420 */ 1421 static void 1422 win_init_some(win_T *newp, win_T *oldp) 1423 { 1424 // Use the same argument list. 1425 newp->w_alist = oldp->w_alist; 1426 ++newp->w_alist->al_refcount; 1427 newp->w_arg_idx = oldp->w_arg_idx; 1428 1429 // copy options from existing window 1430 win_copy_options(oldp, newp); 1431 } 1432 1433 /* 1434 * Return TRUE if "win" is a global popup or a popup in the current tab page. 1435 */ 1436 int 1437 win_valid_popup(win_T *win UNUSED) 1438 { 1439 #ifdef FEAT_PROP_POPUP 1440 win_T *wp; 1441 1442 FOR_ALL_POPUPWINS(wp) 1443 if (wp == win) 1444 return TRUE; 1445 FOR_ALL_POPUPWINS_IN_TAB(curtab, wp) 1446 if (wp == win) 1447 return TRUE; 1448 #endif 1449 return FALSE; 1450 } 1451 1452 /* 1453 * Check if "win" is a pointer to an existing window in the current tab page. 1454 */ 1455 int 1456 win_valid(win_T *win) 1457 { 1458 win_T *wp; 1459 1460 if (win == NULL) 1461 return FALSE; 1462 FOR_ALL_WINDOWS(wp) 1463 if (wp == win) 1464 return TRUE; 1465 return win_valid_popup(win); 1466 } 1467 1468 /* 1469 * Find window "id" in the current tab page. 1470 * Also find popup windows. 1471 * Return NULL if not found. 1472 */ 1473 win_T * 1474 win_find_by_id(int id) 1475 { 1476 win_T *wp; 1477 1478 FOR_ALL_WINDOWS(wp) 1479 if (wp->w_id == id) 1480 return wp; 1481 #ifdef FEAT_PROP_POPUP 1482 FOR_ALL_POPUPWINS(wp) 1483 if (wp->w_id == id) 1484 return wp; 1485 FOR_ALL_POPUPWINS_IN_TAB(curtab, wp) 1486 if (wp->w_id == id) 1487 return wp; 1488 #endif 1489 return NULL; 1490 } 1491 1492 /* 1493 * Check if "win" is a pointer to an existing window in any tab page. 1494 */ 1495 int 1496 win_valid_any_tab(win_T *win) 1497 { 1498 win_T *wp; 1499 tabpage_T *tp; 1500 1501 if (win == NULL) 1502 return FALSE; 1503 FOR_ALL_TABPAGES(tp) 1504 { 1505 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 1506 { 1507 if (wp == win) 1508 return TRUE; 1509 } 1510 #ifdef FEAT_PROP_POPUP 1511 FOR_ALL_POPUPWINS_IN_TAB(tp, wp) 1512 if (wp == win) 1513 return TRUE; 1514 #endif 1515 } 1516 return win_valid_popup(win); 1517 } 1518 1519 /* 1520 * Return the number of windows. 1521 */ 1522 int 1523 win_count(void) 1524 { 1525 win_T *wp; 1526 int count = 0; 1527 1528 FOR_ALL_WINDOWS(wp) 1529 ++count; 1530 return count; 1531 } 1532 1533 /* 1534 * Make "count" windows on the screen. 1535 * Return actual number of windows on the screen. 1536 * Must be called when there is just one window, filling the whole screen 1537 * (excluding the command line). 1538 */ 1539 int 1540 make_windows( 1541 int count, 1542 int vertical UNUSED) // split windows vertically if TRUE 1543 { 1544 int maxcount; 1545 int todo; 1546 1547 if (vertical) 1548 { 1549 // Each windows needs at least 'winminwidth' lines and a separator 1550 // column. 1551 maxcount = (curwin->w_width + curwin->w_vsep_width 1552 - (p_wiw - p_wmw)) / (p_wmw + 1); 1553 } 1554 else 1555 { 1556 // Each window needs at least 'winminheight' lines and a status line. 1557 maxcount = (VISIBLE_HEIGHT(curwin) + curwin->w_status_height 1558 - (p_wh - p_wmh)) / (p_wmh + STATUS_HEIGHT); 1559 } 1560 1561 if (maxcount < 2) 1562 maxcount = 2; 1563 if (count > maxcount) 1564 count = maxcount; 1565 1566 /* 1567 * add status line now, otherwise first window will be too big 1568 */ 1569 if (count > 1) 1570 last_status(TRUE); 1571 1572 /* 1573 * Don't execute autocommands while creating the windows. Must do that 1574 * when putting the buffers in the windows. 1575 */ 1576 block_autocmds(); 1577 1578 // todo is number of windows left to create 1579 for (todo = count - 1; todo > 0; --todo) 1580 if (vertical) 1581 { 1582 if (win_split(curwin->w_width - (curwin->w_width - todo) 1583 / (todo + 1) - 1, WSP_VERT | WSP_ABOVE) == FAIL) 1584 break; 1585 } 1586 else 1587 { 1588 if (win_split(curwin->w_height - (curwin->w_height - todo 1589 * STATUS_HEIGHT) / (todo + 1) 1590 - STATUS_HEIGHT, WSP_ABOVE) == FAIL) 1591 break; 1592 } 1593 1594 unblock_autocmds(); 1595 1596 // return actual number of windows 1597 return (count - todo); 1598 } 1599 1600 /* 1601 * Exchange current and next window 1602 */ 1603 static void 1604 win_exchange(long Prenum) 1605 { 1606 frame_T *frp; 1607 frame_T *frp2; 1608 win_T *wp; 1609 win_T *wp2; 1610 int temp; 1611 1612 if (ERROR_IF_ANY_POPUP_WINDOW) 1613 return; 1614 if (ONE_WINDOW) // just one window 1615 { 1616 beep_flush(); 1617 return; 1618 } 1619 1620 #ifdef FEAT_GUI 1621 need_mouse_correct = TRUE; 1622 #endif 1623 1624 /* 1625 * find window to exchange with 1626 */ 1627 if (Prenum) 1628 { 1629 frp = curwin->w_frame->fr_parent->fr_child; 1630 while (frp != NULL && --Prenum > 0) 1631 frp = frp->fr_next; 1632 } 1633 else if (curwin->w_frame->fr_next != NULL) // Swap with next 1634 frp = curwin->w_frame->fr_next; 1635 else // Swap last window in row/col with previous 1636 frp = curwin->w_frame->fr_prev; 1637 1638 // We can only exchange a window with another window, not with a frame 1639 // containing windows. 1640 if (frp == NULL || frp->fr_win == NULL || frp->fr_win == curwin) 1641 return; 1642 wp = frp->fr_win; 1643 1644 /* 1645 * 1. remove curwin from the list. Remember after which window it was in wp2 1646 * 2. insert curwin before wp in the list 1647 * if wp != wp2 1648 * 3. remove wp from the list 1649 * 4. insert wp after wp2 1650 * 5. exchange the status line height and vsep width. 1651 */ 1652 wp2 = curwin->w_prev; 1653 frp2 = curwin->w_frame->fr_prev; 1654 if (wp->w_prev != curwin) 1655 { 1656 win_remove(curwin, NULL); 1657 frame_remove(curwin->w_frame); 1658 win_append(wp->w_prev, curwin); 1659 frame_insert(frp, curwin->w_frame); 1660 } 1661 if (wp != wp2) 1662 { 1663 win_remove(wp, NULL); 1664 frame_remove(wp->w_frame); 1665 win_append(wp2, wp); 1666 if (frp2 == NULL) 1667 frame_insert(wp->w_frame->fr_parent->fr_child, wp->w_frame); 1668 else 1669 frame_append(frp2, wp->w_frame); 1670 } 1671 temp = curwin->w_status_height; 1672 curwin->w_status_height = wp->w_status_height; 1673 wp->w_status_height = temp; 1674 temp = curwin->w_vsep_width; 1675 curwin->w_vsep_width = wp->w_vsep_width; 1676 wp->w_vsep_width = temp; 1677 1678 // If the windows are not in the same frame, exchange the sizes to avoid 1679 // messing up the window layout. Otherwise fix the frame sizes. 1680 if (curwin->w_frame->fr_parent != wp->w_frame->fr_parent) 1681 { 1682 temp = curwin->w_height; 1683 curwin->w_height = wp->w_height; 1684 wp->w_height = temp; 1685 temp = curwin->w_width; 1686 curwin->w_width = wp->w_width; 1687 wp->w_width = temp; 1688 } 1689 else 1690 { 1691 frame_fix_height(curwin); 1692 frame_fix_height(wp); 1693 frame_fix_width(curwin); 1694 frame_fix_width(wp); 1695 } 1696 1697 (void)win_comp_pos(); // recompute window positions 1698 1699 win_enter(wp, TRUE); 1700 redraw_all_later(NOT_VALID); 1701 } 1702 1703 /* 1704 * rotate windows: if upwards TRUE the second window becomes the first one 1705 * if upwards FALSE the first window becomes the second one 1706 */ 1707 static void 1708 win_rotate(int upwards, int count) 1709 { 1710 win_T *wp1; 1711 win_T *wp2; 1712 frame_T *frp; 1713 int n; 1714 1715 if (ONE_WINDOW) // nothing to do 1716 { 1717 beep_flush(); 1718 return; 1719 } 1720 1721 #ifdef FEAT_GUI 1722 need_mouse_correct = TRUE; 1723 #endif 1724 1725 // Check if all frames in this row/col have one window. 1726 FOR_ALL_FRAMES(frp, curwin->w_frame->fr_parent->fr_child) 1727 if (frp->fr_win == NULL) 1728 { 1729 emsg(_("E443: Cannot rotate when another window is split")); 1730 return; 1731 } 1732 1733 while (count--) 1734 { 1735 if (upwards) // first window becomes last window 1736 { 1737 // remove first window/frame from the list 1738 frp = curwin->w_frame->fr_parent->fr_child; 1739 wp1 = frp->fr_win; 1740 win_remove(wp1, NULL); 1741 frame_remove(frp); 1742 1743 // find last frame and append removed window/frame after it 1744 for ( ; frp->fr_next != NULL; frp = frp->fr_next) 1745 ; 1746 win_append(frp->fr_win, wp1); 1747 frame_append(frp, wp1->w_frame); 1748 1749 wp2 = frp->fr_win; // previously last window 1750 } 1751 else // last window becomes first window 1752 { 1753 // find last window/frame in the list and remove it 1754 for (frp = curwin->w_frame; frp->fr_next != NULL; 1755 frp = frp->fr_next) 1756 ; 1757 wp1 = frp->fr_win; 1758 wp2 = wp1->w_prev; // will become last window 1759 win_remove(wp1, NULL); 1760 frame_remove(frp); 1761 1762 // append the removed window/frame before the first in the list 1763 win_append(frp->fr_parent->fr_child->fr_win->w_prev, wp1); 1764 frame_insert(frp->fr_parent->fr_child, frp); 1765 } 1766 1767 // exchange status height and vsep width of old and new last window 1768 n = wp2->w_status_height; 1769 wp2->w_status_height = wp1->w_status_height; 1770 wp1->w_status_height = n; 1771 frame_fix_height(wp1); 1772 frame_fix_height(wp2); 1773 n = wp2->w_vsep_width; 1774 wp2->w_vsep_width = wp1->w_vsep_width; 1775 wp1->w_vsep_width = n; 1776 frame_fix_width(wp1); 1777 frame_fix_width(wp2); 1778 1779 // recompute w_winrow and w_wincol for all windows 1780 (void)win_comp_pos(); 1781 } 1782 1783 redraw_all_later(NOT_VALID); 1784 } 1785 1786 /* 1787 * Move the current window to the very top/bottom/left/right of the screen. 1788 */ 1789 static void 1790 win_totop(int size, int flags) 1791 { 1792 int dir; 1793 int height = curwin->w_height; 1794 1795 if (ONE_WINDOW) 1796 { 1797 beep_flush(); 1798 return; 1799 } 1800 if (check_split_disallowed() == FAIL) 1801 return; 1802 1803 // Remove the window and frame from the tree of frames. 1804 (void)winframe_remove(curwin, &dir, NULL); 1805 win_remove(curwin, NULL); 1806 last_status(FALSE); // may need to remove last status line 1807 (void)win_comp_pos(); // recompute window positions 1808 1809 // Split a window on the desired side and put the window there. 1810 (void)win_split_ins(size, flags, curwin, dir); 1811 if (!(flags & WSP_VERT)) 1812 { 1813 win_setheight(height); 1814 if (p_ea) 1815 win_equal(curwin, TRUE, 'v'); 1816 } 1817 1818 #if defined(FEAT_GUI) 1819 // When 'guioptions' includes 'L' or 'R' may have to remove or add 1820 // scrollbars. Have to update them anyway. 1821 gui_may_update_scrollbars(); 1822 #endif 1823 } 1824 1825 /* 1826 * Move window "win1" to below/right of "win2" and make "win1" the current 1827 * window. Only works within the same frame! 1828 */ 1829 void 1830 win_move_after(win_T *win1, win_T *win2) 1831 { 1832 int height; 1833 1834 // check if the arguments are reasonable 1835 if (win1 == win2) 1836 return; 1837 1838 // check if there is something to do 1839 if (win2->w_next != win1) 1840 { 1841 if (win1->w_frame->fr_parent != win2->w_frame->fr_parent) 1842 { 1843 iemsg("INTERNAL: trying to move a window into another frame"); 1844 return; 1845 } 1846 1847 // may need to move the status line/vertical separator of the last 1848 // window 1849 if (win1 == lastwin) 1850 { 1851 height = win1->w_prev->w_status_height; 1852 win1->w_prev->w_status_height = win1->w_status_height; 1853 win1->w_status_height = height; 1854 if (win1->w_prev->w_vsep_width == 1) 1855 { 1856 // Remove the vertical separator from the last-but-one window, 1857 // add it to the last window. Adjust the frame widths. 1858 win1->w_prev->w_vsep_width = 0; 1859 win1->w_prev->w_frame->fr_width -= 1; 1860 win1->w_vsep_width = 1; 1861 win1->w_frame->fr_width += 1; 1862 } 1863 } 1864 else if (win2 == lastwin) 1865 { 1866 height = win1->w_status_height; 1867 win1->w_status_height = win2->w_status_height; 1868 win2->w_status_height = height; 1869 if (win1->w_vsep_width == 1) 1870 { 1871 // Remove the vertical separator from win1, add it to the last 1872 // window, win2. Adjust the frame widths. 1873 win2->w_vsep_width = 1; 1874 win2->w_frame->fr_width += 1; 1875 win1->w_vsep_width = 0; 1876 win1->w_frame->fr_width -= 1; 1877 } 1878 } 1879 win_remove(win1, NULL); 1880 frame_remove(win1->w_frame); 1881 win_append(win2, win1); 1882 frame_append(win2->w_frame, win1->w_frame); 1883 1884 (void)win_comp_pos(); // recompute w_winrow for all windows 1885 redraw_later(NOT_VALID); 1886 } 1887 win_enter(win1, FALSE); 1888 } 1889 1890 /* 1891 * Make all windows the same height. 1892 * 'next_curwin' will soon be the current window, make sure it has enough 1893 * rows. 1894 */ 1895 void 1896 win_equal( 1897 win_T *next_curwin, // pointer to current window to be or NULL 1898 int current, // do only frame with current window 1899 int dir) // 'v' for vertically, 'h' for horizontally, 1900 // 'b' for both, 0 for using p_ead 1901 { 1902 if (dir == 0) 1903 dir = *p_ead; 1904 win_equal_rec(next_curwin == NULL ? curwin : next_curwin, current, 1905 topframe, dir, 0, tabline_height(), 1906 (int)Columns, topframe->fr_height); 1907 } 1908 1909 /* 1910 * Set a frame to a new position and height, spreading the available room 1911 * equally over contained frames. 1912 * The window "next_curwin" (if not NULL) should at least get the size from 1913 * 'winheight' and 'winwidth' if possible. 1914 */ 1915 static void 1916 win_equal_rec( 1917 win_T *next_curwin, // pointer to current window to be or NULL 1918 int current, // do only frame with current window 1919 frame_T *topfr, // frame to set size off 1920 int dir, // 'v', 'h' or 'b', see win_equal() 1921 int col, // horizontal position for frame 1922 int row, // vertical position for frame 1923 int width, // new width of frame 1924 int height) // new height of frame 1925 { 1926 int n, m; 1927 int extra_sep = 0; 1928 int wincount, totwincount = 0; 1929 frame_T *fr; 1930 int next_curwin_size = 0; 1931 int room = 0; 1932 int new_size; 1933 int has_next_curwin = 0; 1934 int hnc; 1935 1936 if (topfr->fr_layout == FR_LEAF) 1937 { 1938 // Set the width/height of this frame. 1939 // Redraw when size or position changes 1940 if (topfr->fr_height != height || topfr->fr_win->w_winrow != row 1941 || topfr->fr_width != width || topfr->fr_win->w_wincol != col 1942 ) 1943 { 1944 topfr->fr_win->w_winrow = row; 1945 frame_new_height(topfr, height, FALSE, FALSE); 1946 topfr->fr_win->w_wincol = col; 1947 frame_new_width(topfr, width, FALSE, FALSE); 1948 redraw_all_later(NOT_VALID); 1949 } 1950 } 1951 else if (topfr->fr_layout == FR_ROW) 1952 { 1953 topfr->fr_width = width; 1954 topfr->fr_height = height; 1955 1956 if (dir != 'v') // equalize frame widths 1957 { 1958 // Compute the maximum number of windows horizontally in this 1959 // frame. 1960 n = frame_minwidth(topfr, NOWIN); 1961 // add one for the rightmost window, it doesn't have a separator 1962 if (col + width == Columns) 1963 extra_sep = 1; 1964 else 1965 extra_sep = 0; 1966 totwincount = (n + extra_sep) / (p_wmw + 1); 1967 has_next_curwin = frame_has_win(topfr, next_curwin); 1968 1969 /* 1970 * Compute width for "next_curwin" window and room available for 1971 * other windows. 1972 * "m" is the minimal width when counting p_wiw for "next_curwin". 1973 */ 1974 m = frame_minwidth(topfr, next_curwin); 1975 room = width - m; 1976 if (room < 0) 1977 { 1978 next_curwin_size = p_wiw + room; 1979 room = 0; 1980 } 1981 else 1982 { 1983 next_curwin_size = -1; 1984 FOR_ALL_FRAMES(fr, topfr->fr_child) 1985 { 1986 // If 'winfixwidth' set keep the window width if 1987 // possible. 1988 // Watch out for this window being the next_curwin. 1989 if (frame_fixed_width(fr)) 1990 { 1991 n = frame_minwidth(fr, NOWIN); 1992 new_size = fr->fr_width; 1993 if (frame_has_win(fr, next_curwin)) 1994 { 1995 room += p_wiw - p_wmw; 1996 next_curwin_size = 0; 1997 if (new_size < p_wiw) 1998 new_size = p_wiw; 1999 } 2000 else 2001 // These windows don't use up room. 2002 totwincount -= (n + (fr->fr_next == NULL 2003 ? extra_sep : 0)) / (p_wmw + 1); 2004 room -= new_size - n; 2005 if (room < 0) 2006 { 2007 new_size += room; 2008 room = 0; 2009 } 2010 fr->fr_newwidth = new_size; 2011 } 2012 } 2013 if (next_curwin_size == -1) 2014 { 2015 if (!has_next_curwin) 2016 next_curwin_size = 0; 2017 else if (totwincount > 1 2018 && (room + (totwincount - 2)) 2019 / (totwincount - 1) > p_wiw) 2020 { 2021 // Can make all windows wider than 'winwidth', spread 2022 // the room equally. 2023 next_curwin_size = (room + p_wiw 2024 + (totwincount - 1) * p_wmw 2025 + (totwincount - 1)) / totwincount; 2026 room -= next_curwin_size - p_wiw; 2027 } 2028 else 2029 next_curwin_size = p_wiw; 2030 } 2031 } 2032 2033 if (has_next_curwin) 2034 --totwincount; // don't count curwin 2035 } 2036 2037 FOR_ALL_FRAMES(fr, topfr->fr_child) 2038 { 2039 wincount = 1; 2040 if (fr->fr_next == NULL) 2041 // last frame gets all that remains (avoid roundoff error) 2042 new_size = width; 2043 else if (dir == 'v') 2044 new_size = fr->fr_width; 2045 else if (frame_fixed_width(fr)) 2046 { 2047 new_size = fr->fr_newwidth; 2048 wincount = 0; // doesn't count as a sizeable window 2049 } 2050 else 2051 { 2052 // Compute the maximum number of windows horiz. in "fr". 2053 n = frame_minwidth(fr, NOWIN); 2054 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 2055 / (p_wmw + 1); 2056 m = frame_minwidth(fr, next_curwin); 2057 if (has_next_curwin) 2058 hnc = frame_has_win(fr, next_curwin); 2059 else 2060 hnc = FALSE; 2061 if (hnc) // don't count next_curwin 2062 --wincount; 2063 if (totwincount == 0) 2064 new_size = room; 2065 else 2066 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 2067 / totwincount; 2068 if (hnc) // add next_curwin size 2069 { 2070 next_curwin_size -= p_wiw - (m - n); 2071 new_size += next_curwin_size; 2072 room -= new_size - next_curwin_size; 2073 } 2074 else 2075 room -= new_size; 2076 new_size += n; 2077 } 2078 2079 // Skip frame that is full width when splitting or closing a 2080 // window, unless equalizing all frames. 2081 if (!current || dir != 'v' || topfr->fr_parent != NULL 2082 || (new_size != fr->fr_width) 2083 || frame_has_win(fr, next_curwin)) 2084 win_equal_rec(next_curwin, current, fr, dir, col, row, 2085 new_size, height); 2086 col += new_size; 2087 width -= new_size; 2088 totwincount -= wincount; 2089 } 2090 } 2091 else // topfr->fr_layout == FR_COL 2092 { 2093 topfr->fr_width = width; 2094 topfr->fr_height = height; 2095 2096 if (dir != 'h') // equalize frame heights 2097 { 2098 // Compute maximum number of windows vertically in this frame. 2099 n = frame_minheight(topfr, NOWIN); 2100 // add one for the bottom window if it doesn't have a statusline 2101 if (row + height == cmdline_row && p_ls == 0) 2102 extra_sep = 1; 2103 else 2104 extra_sep = 0; 2105 totwincount = (n + extra_sep) / (p_wmh + 1); 2106 has_next_curwin = frame_has_win(topfr, next_curwin); 2107 2108 /* 2109 * Compute height for "next_curwin" window and room available for 2110 * other windows. 2111 * "m" is the minimal height when counting p_wh for "next_curwin". 2112 */ 2113 m = frame_minheight(topfr, next_curwin); 2114 room = height - m; 2115 if (room < 0) 2116 { 2117 // The room is less then 'winheight', use all space for the 2118 // current window. 2119 next_curwin_size = p_wh + room; 2120 room = 0; 2121 } 2122 else 2123 { 2124 next_curwin_size = -1; 2125 FOR_ALL_FRAMES(fr, topfr->fr_child) 2126 { 2127 // If 'winfixheight' set keep the window height if 2128 // possible. 2129 // Watch out for this window being the next_curwin. 2130 if (frame_fixed_height(fr)) 2131 { 2132 n = frame_minheight(fr, NOWIN); 2133 new_size = fr->fr_height; 2134 if (frame_has_win(fr, next_curwin)) 2135 { 2136 room += p_wh - p_wmh; 2137 next_curwin_size = 0; 2138 if (new_size < p_wh) 2139 new_size = p_wh; 2140 } 2141 else 2142 // These windows don't use up room. 2143 totwincount -= (n + (fr->fr_next == NULL 2144 ? extra_sep : 0)) / (p_wmh + 1); 2145 room -= new_size - n; 2146 if (room < 0) 2147 { 2148 new_size += room; 2149 room = 0; 2150 } 2151 fr->fr_newheight = new_size; 2152 } 2153 } 2154 if (next_curwin_size == -1) 2155 { 2156 if (!has_next_curwin) 2157 next_curwin_size = 0; 2158 else if (totwincount > 1 2159 && (room + (totwincount - 2)) 2160 / (totwincount - 1) > p_wh) 2161 { 2162 // can make all windows higher than 'winheight', 2163 // spread the room equally. 2164 next_curwin_size = (room + p_wh 2165 + (totwincount - 1) * p_wmh 2166 + (totwincount - 1)) / totwincount; 2167 room -= next_curwin_size - p_wh; 2168 } 2169 else 2170 next_curwin_size = p_wh; 2171 } 2172 } 2173 2174 if (has_next_curwin) 2175 --totwincount; // don't count curwin 2176 } 2177 2178 FOR_ALL_FRAMES(fr, topfr->fr_child) 2179 { 2180 wincount = 1; 2181 if (fr->fr_next == NULL) 2182 // last frame gets all that remains (avoid roundoff error) 2183 new_size = height; 2184 else if (dir == 'h') 2185 new_size = fr->fr_height; 2186 else if (frame_fixed_height(fr)) 2187 { 2188 new_size = fr->fr_newheight; 2189 wincount = 0; // doesn't count as a sizeable window 2190 } 2191 else 2192 { 2193 // Compute the maximum number of windows vert. in "fr". 2194 n = frame_minheight(fr, NOWIN); 2195 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 2196 / (p_wmh + 1); 2197 m = frame_minheight(fr, next_curwin); 2198 if (has_next_curwin) 2199 hnc = frame_has_win(fr, next_curwin); 2200 else 2201 hnc = FALSE; 2202 if (hnc) // don't count next_curwin 2203 --wincount; 2204 if (totwincount == 0) 2205 new_size = room; 2206 else 2207 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 2208 / totwincount; 2209 if (hnc) // add next_curwin size 2210 { 2211 next_curwin_size -= p_wh - (m - n); 2212 new_size += next_curwin_size; 2213 room -= new_size - next_curwin_size; 2214 } 2215 else 2216 room -= new_size; 2217 new_size += n; 2218 } 2219 // Skip frame that is full width when splitting or closing a 2220 // window, unless equalizing all frames. 2221 if (!current || dir != 'h' || topfr->fr_parent != NULL 2222 || (new_size != fr->fr_height) 2223 || frame_has_win(fr, next_curwin)) 2224 win_equal_rec(next_curwin, current, fr, dir, col, row, 2225 width, new_size); 2226 row += new_size; 2227 height -= new_size; 2228 totwincount -= wincount; 2229 } 2230 } 2231 } 2232 2233 #ifdef FEAT_JOB_CHANNEL 2234 static void 2235 leaving_window(win_T *win) 2236 { 2237 // Only matters for a prompt window. 2238 if (!bt_prompt(win->w_buffer)) 2239 return; 2240 2241 // When leaving a prompt window stop Insert mode and perhaps restart 2242 // it when entering that window again. 2243 win->w_buffer->b_prompt_insert = restart_edit; 2244 if (restart_edit != 0 && mode_displayed) 2245 clear_cmdline = TRUE; // unshow mode later 2246 restart_edit = NUL; 2247 2248 // When leaving the window (or closing the window) was done from a 2249 // callback we need to break out of the Insert mode loop and restart Insert 2250 // mode when entering the window again. 2251 if (State & INSERT) 2252 { 2253 stop_insert_mode = TRUE; 2254 if (win->w_buffer->b_prompt_insert == NUL) 2255 win->w_buffer->b_prompt_insert = 'A'; 2256 } 2257 } 2258 2259 void 2260 entering_window(win_T *win) 2261 { 2262 // Only matters for a prompt window. 2263 if (!bt_prompt(win->w_buffer)) 2264 return; 2265 2266 // When switching to a prompt buffer that was in Insert mode, don't stop 2267 // Insert mode, it may have been set in leaving_window(). 2268 if (win->w_buffer->b_prompt_insert != NUL) 2269 stop_insert_mode = FALSE; 2270 2271 // When entering the prompt window restart Insert mode if we were in Insert 2272 // mode when we left it. 2273 restart_edit = win->w_buffer->b_prompt_insert; 2274 } 2275 #endif 2276 2277 /* 2278 * Close all windows for buffer "buf". 2279 */ 2280 void 2281 close_windows( 2282 buf_T *buf, 2283 int keep_curwin) // don't close "curwin" 2284 { 2285 win_T *wp; 2286 tabpage_T *tp, *nexttp; 2287 int h = tabline_height(); 2288 int count = tabpage_index(NULL); 2289 2290 ++RedrawingDisabled; 2291 2292 for (wp = firstwin; wp != NULL && !ONE_WINDOW; ) 2293 { 2294 if (wp->w_buffer == buf && (!keep_curwin || wp != curwin) 2295 && !(wp->w_closing || wp->w_buffer->b_locked > 0)) 2296 { 2297 if (win_close(wp, FALSE) == FAIL) 2298 // If closing the window fails give up, to avoid looping 2299 // forever. 2300 break; 2301 2302 // Start all over, autocommands may change the window layout. 2303 wp = firstwin; 2304 } 2305 else 2306 wp = wp->w_next; 2307 } 2308 2309 // Also check windows in other tab pages. 2310 for (tp = first_tabpage; tp != NULL; tp = nexttp) 2311 { 2312 nexttp = tp->tp_next; 2313 if (tp != curtab) 2314 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 2315 if (wp->w_buffer == buf 2316 && !(wp->w_closing || wp->w_buffer->b_locked > 0)) 2317 { 2318 win_close_othertab(wp, FALSE, tp); 2319 2320 // Start all over, the tab page may be closed and 2321 // autocommands may change the window layout. 2322 nexttp = first_tabpage; 2323 break; 2324 } 2325 } 2326 2327 --RedrawingDisabled; 2328 2329 if (count != tabpage_index(NULL)) 2330 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2331 2332 redraw_tabline = TRUE; 2333 if (h != tabline_height()) 2334 shell_new_rows(); 2335 } 2336 2337 /* 2338 * Return TRUE if the current window is the only window that exists (ignoring 2339 * "aucmd_win"). 2340 * Returns FALSE if there is a window, possibly in another tab page. 2341 */ 2342 static int 2343 last_window(void) 2344 { 2345 return (one_window() && first_tabpage->tp_next == NULL); 2346 } 2347 2348 /* 2349 * Return TRUE if there is only one window other than "aucmd_win" in the 2350 * current tab page. 2351 */ 2352 int 2353 one_window(void) 2354 { 2355 win_T *wp; 2356 int seen_one = FALSE; 2357 2358 FOR_ALL_WINDOWS(wp) 2359 { 2360 if (wp != aucmd_win) 2361 { 2362 if (seen_one) 2363 return FALSE; 2364 seen_one = TRUE; 2365 } 2366 } 2367 return TRUE; 2368 } 2369 2370 /* 2371 * Close the possibly last window in a tab page. 2372 * Returns TRUE when the window was closed already. 2373 */ 2374 static int 2375 close_last_window_tabpage( 2376 win_T *win, 2377 int free_buf, 2378 tabpage_T *prev_curtab) 2379 { 2380 if (ONE_WINDOW) 2381 { 2382 buf_T *old_curbuf = curbuf; 2383 2384 /* 2385 * Closing the last window in a tab page. First go to another tab 2386 * page and then close the window and the tab page. This avoids that 2387 * curwin and curtab are invalid while we are freeing memory, they may 2388 * be used in GUI events. 2389 * Don't trigger autocommands yet, they may use wrong values, so do 2390 * that below. 2391 */ 2392 goto_tabpage_tp(alt_tabpage(), FALSE, TRUE); 2393 redraw_tabline = TRUE; 2394 2395 // Safety check: Autocommands may have closed the window when jumping 2396 // to the other tab page. 2397 if (valid_tabpage(prev_curtab) && prev_curtab->tp_firstwin == win) 2398 { 2399 int h = tabline_height(); 2400 2401 win_close_othertab(win, free_buf, prev_curtab); 2402 if (h != tabline_height()) 2403 shell_new_rows(); 2404 } 2405 #ifdef FEAT_JOB_CHANNEL 2406 entering_window(curwin); 2407 #endif 2408 // Since goto_tabpage_tp above did not trigger *Enter autocommands, do 2409 // that now. 2410 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2411 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 2412 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 2413 if (old_curbuf != curbuf) 2414 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2415 return TRUE; 2416 } 2417 return FALSE; 2418 } 2419 2420 /* 2421 * Close the buffer of "win" and unload it if "action" is DOBUF_UNLOAD. 2422 * "action" can also be zero (do nothing) or DOBUF_WIPE. 2423 * "abort_if_last" is passed to close_buffer(): abort closing if all other 2424 * windows are closed. 2425 */ 2426 static void 2427 win_close_buffer(win_T *win, int action, int abort_if_last) 2428 { 2429 #ifdef FEAT_SYN_HL 2430 // Free independent synblock before the buffer is freed. 2431 if (win->w_buffer != NULL) 2432 reset_synblock(win); 2433 #endif 2434 2435 #ifdef FEAT_QUICKFIX 2436 // When the quickfix/location list window is closed, unlist the buffer. 2437 if (win->w_buffer != NULL && bt_quickfix(win->w_buffer)) 2438 win->w_buffer->b_p_bl = FALSE; 2439 #endif 2440 2441 // Close the link to the buffer. 2442 if (win->w_buffer != NULL) 2443 { 2444 bufref_T bufref; 2445 2446 set_bufref(&bufref, curbuf); 2447 win->w_closing = TRUE; 2448 close_buffer(win, win->w_buffer, action, abort_if_last, FALSE); 2449 if (win_valid_any_tab(win)) 2450 win->w_closing = FALSE; 2451 // Make sure curbuf is valid. It can become invalid if 'bufhidden' is 2452 // "wipe". 2453 if (!bufref_valid(&bufref)) 2454 curbuf = firstbuf; 2455 } 2456 } 2457 2458 /* 2459 * Close window "win". Only works for the current tab page. 2460 * If "free_buf" is TRUE related buffer may be unloaded. 2461 * 2462 * Called by :quit, :close, :xit, :wq and findtag(). 2463 * Returns FAIL when the window was not closed. 2464 */ 2465 int 2466 win_close(win_T *win, int free_buf) 2467 { 2468 win_T *wp; 2469 int other_buffer = FALSE; 2470 int close_curwin = FALSE; 2471 int dir; 2472 int help_window = FALSE; 2473 tabpage_T *prev_curtab = curtab; 2474 frame_T *win_frame = win->w_frame->fr_parent; 2475 #ifdef FEAT_DIFF 2476 int had_diffmode = win->w_p_diff; 2477 #endif 2478 2479 #if defined(FEAT_TERMINAL) && defined(FEAT_PROP_POPUP) 2480 // Can close a popup window with a terminal if the job has finished. 2481 if (may_close_term_popup() == OK) 2482 return OK; 2483 #endif 2484 if (ERROR_IF_ANY_POPUP_WINDOW) 2485 return FAIL; 2486 2487 if (last_window()) 2488 { 2489 emsg(_("E444: Cannot close last window")); 2490 return FAIL; 2491 } 2492 2493 if (win->w_closing || (win->w_buffer != NULL 2494 && win->w_buffer->b_locked > 0)) 2495 return FAIL; // window is already being closed 2496 if (win_unlisted(win)) 2497 { 2498 emsg(_(e_autocmd_close)); 2499 return FAIL; 2500 } 2501 if ((firstwin == aucmd_win || lastwin == aucmd_win) && one_window()) 2502 { 2503 emsg(_("E814: Cannot close window, only autocmd window would remain")); 2504 return FAIL; 2505 } 2506 2507 // When closing the last window in a tab page first go to another tab page 2508 // and then close the window and the tab page to avoid that curwin and 2509 // curtab are invalid while we are freeing memory. 2510 if (close_last_window_tabpage(win, free_buf, prev_curtab)) 2511 return FAIL; 2512 2513 // When closing the help window, try restoring a snapshot after closing 2514 // the window. Otherwise clear the snapshot, it's now invalid. 2515 if (bt_help(win->w_buffer)) 2516 help_window = TRUE; 2517 else 2518 clear_snapshot(curtab, SNAP_HELP_IDX); 2519 2520 if (win == curwin) 2521 { 2522 #ifdef FEAT_JOB_CHANNEL 2523 leaving_window(curwin); 2524 #endif 2525 /* 2526 * Guess which window is going to be the new current window. 2527 * This may change because of the autocommands (sigh). 2528 */ 2529 wp = frame2win(win_altframe(win, NULL)); 2530 2531 /* 2532 * Be careful: If autocommands delete the window or cause this window 2533 * to be the last one left, return now. 2534 */ 2535 if (wp->w_buffer != curbuf) 2536 { 2537 other_buffer = TRUE; 2538 win->w_closing = TRUE; 2539 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 2540 if (!win_valid(win)) 2541 return FAIL; 2542 win->w_closing = FALSE; 2543 if (last_window()) 2544 return FAIL; 2545 } 2546 win->w_closing = TRUE; 2547 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 2548 if (!win_valid(win)) 2549 return FAIL; 2550 win->w_closing = FALSE; 2551 if (last_window()) 2552 return FAIL; 2553 #ifdef FEAT_EVAL 2554 // autocmds may abort script processing 2555 if (aborting()) 2556 return FAIL; 2557 #endif 2558 } 2559 2560 #ifdef FEAT_GUI 2561 // Avoid trouble with scrollbars that are going to be deleted in 2562 // win_free(). 2563 if (gui.in_use) 2564 out_flush(); 2565 #endif 2566 2567 #ifdef FEAT_PROP_POPUP 2568 if (popup_win_closed(win) && !win_valid(win)) 2569 return FAIL; 2570 #endif 2571 win_close_buffer(win, free_buf ? DOBUF_UNLOAD : 0, TRUE); 2572 2573 if (only_one_window() && win_valid(win) && win->w_buffer == NULL 2574 && (last_window() || curtab != prev_curtab 2575 || close_last_window_tabpage(win, free_buf, prev_curtab))) 2576 { 2577 // Autocommands have closed all windows, quit now. Restore 2578 // curwin->w_buffer, otherwise writing viminfo may fail. 2579 if (curwin->w_buffer == NULL) 2580 curwin->w_buffer = curbuf; 2581 getout(0); 2582 } 2583 2584 // Autocommands may have moved to another tab page. 2585 if (curtab != prev_curtab && win_valid_any_tab(win) 2586 && win->w_buffer == NULL) 2587 { 2588 // Need to close the window anyway, since the buffer is NULL. 2589 win_close_othertab(win, FALSE, prev_curtab); 2590 return FAIL; 2591 } 2592 2593 // Autocommands may have closed the window already or closed the only 2594 // other window. 2595 if (!win_valid(win) || last_window() 2596 || close_last_window_tabpage(win, free_buf, prev_curtab)) 2597 return FAIL; 2598 2599 // Now we are really going to close the window. Disallow any autocommand 2600 // to split a window to avoid trouble. 2601 // Also bail out of parse_queued_messages() to avoid it tries to update the 2602 // screen. 2603 ++split_disallowed; 2604 #ifdef MESSAGE_QUEUE 2605 ++dont_parse_messages; 2606 #endif 2607 2608 // Free the memory used for the window and get the window that received 2609 // the screen space. 2610 wp = win_free_mem(win, &dir, NULL); 2611 2612 // Make sure curwin isn't invalid. It can cause severe trouble when 2613 // printing an error message. For win_equal() curbuf needs to be valid 2614 // too. 2615 if (win == curwin) 2616 { 2617 curwin = wp; 2618 #ifdef FEAT_QUICKFIX 2619 if (wp->w_p_pvw || bt_quickfix(wp->w_buffer)) 2620 { 2621 /* 2622 * If the cursor goes to the preview or the quickfix window, try 2623 * finding another window to go to. 2624 */ 2625 for (;;) 2626 { 2627 if (wp->w_next == NULL) 2628 wp = firstwin; 2629 else 2630 wp = wp->w_next; 2631 if (wp == curwin) 2632 break; 2633 if (!wp->w_p_pvw && !bt_quickfix(wp->w_buffer)) 2634 { 2635 curwin = wp; 2636 break; 2637 } 2638 } 2639 } 2640 #endif 2641 curbuf = curwin->w_buffer; 2642 close_curwin = TRUE; 2643 2644 // The cursor position may be invalid if the buffer changed after last 2645 // using the window. 2646 check_cursor(); 2647 } 2648 if (p_ea && (*p_ead == 'b' || *p_ead == dir)) 2649 // If the frame of the closed window contains the new current window, 2650 // only resize that frame. Otherwise resize all windows. 2651 win_equal(curwin, curwin->w_frame->fr_parent == win_frame, dir); 2652 else 2653 win_comp_pos(); 2654 if (close_curwin) 2655 { 2656 win_enter_ext(wp, FALSE, TRUE, FALSE, TRUE, TRUE); 2657 if (other_buffer) 2658 // careful: after this wp and win may be invalid! 2659 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2660 } 2661 2662 --split_disallowed; 2663 #ifdef MESSAGE_QUEUE 2664 --dont_parse_messages; 2665 #endif 2666 2667 /* 2668 * If last window has a status line now and we don't want one, 2669 * remove the status line. 2670 */ 2671 last_status(FALSE); 2672 2673 // After closing the help window, try restoring the window layout from 2674 // before it was opened. 2675 if (help_window) 2676 restore_snapshot(SNAP_HELP_IDX, close_curwin); 2677 2678 #ifdef FEAT_DIFF 2679 // If the window had 'diff' set and now there is only one window left in 2680 // the tab page with 'diff' set, and "closeoff" is in 'diffopt', then 2681 // execute ":diffoff!". 2682 if (diffopt_closeoff() && had_diffmode && curtab == prev_curtab) 2683 { 2684 int diffcount = 0; 2685 win_T *dwin; 2686 2687 FOR_ALL_WINDOWS(dwin) 2688 if (dwin->w_p_diff) 2689 ++diffcount; 2690 if (diffcount == 1) 2691 do_cmdline_cmd((char_u *)"diffoff!"); 2692 } 2693 #endif 2694 2695 #if defined(FEAT_GUI) 2696 // When 'guioptions' includes 'L' or 'R' may have to remove scrollbars. 2697 if (gui.in_use && !win_hasvertsplit()) 2698 gui_init_which_components(NULL); 2699 #endif 2700 2701 redraw_all_later(NOT_VALID); 2702 return OK; 2703 } 2704 2705 /* 2706 * Close window "win" in tab page "tp", which is not the current tab page. 2707 * This may be the last window in that tab page and result in closing the tab, 2708 * thus "tp" may become invalid! 2709 * Caller must check if buffer is hidden and whether the tabline needs to be 2710 * updated. 2711 */ 2712 void 2713 win_close_othertab(win_T *win, int free_buf, tabpage_T *tp) 2714 { 2715 win_T *wp; 2716 int dir; 2717 tabpage_T *ptp = NULL; 2718 int free_tp = FALSE; 2719 2720 // Get here with win->w_buffer == NULL when win_close() detects the tab 2721 // page changed. 2722 if (win->w_closing || (win->w_buffer != NULL 2723 && win->w_buffer->b_locked > 0)) 2724 return; // window is already being closed 2725 2726 if (win->w_buffer != NULL) 2727 // Close the link to the buffer. 2728 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, 2729 FALSE, FALSE); 2730 2731 // Careful: Autocommands may have closed the tab page or made it the 2732 // current tab page. 2733 for (ptp = first_tabpage; ptp != NULL && ptp != tp; ptp = ptp->tp_next) 2734 ; 2735 if (ptp == NULL || tp == curtab) 2736 return; 2737 2738 // Autocommands may have closed the window already. 2739 for (wp = tp->tp_firstwin; wp != NULL && wp != win; wp = wp->w_next) 2740 ; 2741 if (wp == NULL) 2742 return; 2743 2744 // When closing the last window in a tab page remove the tab page. 2745 if (tp->tp_firstwin == tp->tp_lastwin) 2746 { 2747 if (tp == first_tabpage) 2748 first_tabpage = tp->tp_next; 2749 else 2750 { 2751 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tp; 2752 ptp = ptp->tp_next) 2753 ; 2754 if (ptp == NULL) 2755 { 2756 internal_error("win_close_othertab()"); 2757 return; 2758 } 2759 ptp->tp_next = tp->tp_next; 2760 } 2761 free_tp = TRUE; 2762 } 2763 2764 // Free the memory used for the window. 2765 win_free_mem(win, &dir, tp); 2766 2767 if (free_tp) 2768 free_tabpage(tp); 2769 } 2770 2771 /* 2772 * Free the memory used for a window. 2773 * Returns a pointer to the window that got the freed up space. 2774 */ 2775 static win_T * 2776 win_free_mem( 2777 win_T *win, 2778 int *dirp, // set to 'v' or 'h' for direction if 'ea' 2779 tabpage_T *tp) // tab page "win" is in, NULL for current 2780 { 2781 frame_T *frp; 2782 win_T *wp; 2783 tabpage_T *win_tp = tp == NULL ? curtab : tp; 2784 2785 // Remove the window and its frame from the tree of frames. 2786 frp = win->w_frame; 2787 wp = winframe_remove(win, dirp, tp); 2788 vim_free(frp); 2789 win_free(win, tp); 2790 2791 // When deleting the current window in the tab, select a new current 2792 // window. 2793 if (win == win_tp->tp_curwin) 2794 win_tp->tp_curwin = wp; 2795 2796 return wp; 2797 } 2798 2799 #if defined(EXITFREE) || defined(PROTO) 2800 void 2801 win_free_all(void) 2802 { 2803 int dummy; 2804 2805 while (first_tabpage->tp_next != NULL) 2806 tabpage_close(TRUE); 2807 2808 if (aucmd_win != NULL) 2809 { 2810 (void)win_free_mem(aucmd_win, &dummy, NULL); 2811 aucmd_win = NULL; 2812 } 2813 2814 while (firstwin != NULL) 2815 (void)win_free_mem(firstwin, &dummy, NULL); 2816 2817 // No window should be used after this. Set curwin to NULL to crash 2818 // instead of using freed memory. 2819 curwin = NULL; 2820 } 2821 #endif 2822 2823 /* 2824 * Remove a window and its frame from the tree of frames. 2825 * Returns a pointer to the window that got the freed up space. 2826 */ 2827 win_T * 2828 winframe_remove( 2829 win_T *win, 2830 int *dirp UNUSED, // set to 'v' or 'h' for direction if 'ea' 2831 tabpage_T *tp) // tab page "win" is in, NULL for current 2832 { 2833 frame_T *frp, *frp2, *frp3; 2834 frame_T *frp_close = win->w_frame; 2835 win_T *wp; 2836 2837 /* 2838 * If there is only one window there is nothing to remove. 2839 */ 2840 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 2841 return NULL; 2842 2843 /* 2844 * Remove the window from its frame. 2845 */ 2846 frp2 = win_altframe(win, tp); 2847 wp = frame2win(frp2); 2848 2849 // Remove this frame from the list of frames. 2850 frame_remove(frp_close); 2851 2852 if (frp_close->fr_parent->fr_layout == FR_COL) 2853 { 2854 // When 'winfixheight' is set, try to find another frame in the column 2855 // (as close to the closed frame as possible) to distribute the height 2856 // to. 2857 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfh) 2858 { 2859 frp = frp_close->fr_prev; 2860 frp3 = frp_close->fr_next; 2861 while (frp != NULL || frp3 != NULL) 2862 { 2863 if (frp != NULL) 2864 { 2865 if (!frame_fixed_height(frp)) 2866 { 2867 frp2 = frp; 2868 wp = frame2win(frp2); 2869 break; 2870 } 2871 frp = frp->fr_prev; 2872 } 2873 if (frp3 != NULL) 2874 { 2875 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfh) 2876 { 2877 frp2 = frp3; 2878 wp = frp3->fr_win; 2879 break; 2880 } 2881 frp3 = frp3->fr_next; 2882 } 2883 } 2884 } 2885 frame_new_height(frp2, frp2->fr_height + frp_close->fr_height, 2886 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2887 *dirp = 'v'; 2888 } 2889 else 2890 { 2891 // When 'winfixwidth' is set, try to find another frame in the column 2892 // (as close to the closed frame as possible) to distribute the width 2893 // to. 2894 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfw) 2895 { 2896 frp = frp_close->fr_prev; 2897 frp3 = frp_close->fr_next; 2898 while (frp != NULL || frp3 != NULL) 2899 { 2900 if (frp != NULL) 2901 { 2902 if (!frame_fixed_width(frp)) 2903 { 2904 frp2 = frp; 2905 wp = frame2win(frp2); 2906 break; 2907 } 2908 frp = frp->fr_prev; 2909 } 2910 if (frp3 != NULL) 2911 { 2912 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfw) 2913 { 2914 frp2 = frp3; 2915 wp = frp3->fr_win; 2916 break; 2917 } 2918 frp3 = frp3->fr_next; 2919 } 2920 } 2921 } 2922 frame_new_width(frp2, frp2->fr_width + frp_close->fr_width, 2923 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2924 *dirp = 'h'; 2925 } 2926 2927 // If rows/columns go to a window below/right its positions need to be 2928 // updated. Can only be done after the sizes have been updated. 2929 if (frp2 == frp_close->fr_next) 2930 { 2931 int row = win->w_winrow; 2932 int col = win->w_wincol; 2933 2934 frame_comp_pos(frp2, &row, &col); 2935 } 2936 2937 if (frp2->fr_next == NULL && frp2->fr_prev == NULL) 2938 { 2939 // There is no other frame in this list, move its info to the parent 2940 // and remove it. 2941 frp2->fr_parent->fr_layout = frp2->fr_layout; 2942 frp2->fr_parent->fr_child = frp2->fr_child; 2943 FOR_ALL_FRAMES(frp, frp2->fr_child) 2944 frp->fr_parent = frp2->fr_parent; 2945 frp2->fr_parent->fr_win = frp2->fr_win; 2946 if (frp2->fr_win != NULL) 2947 frp2->fr_win->w_frame = frp2->fr_parent; 2948 frp = frp2->fr_parent; 2949 if (topframe->fr_child == frp2) 2950 topframe->fr_child = frp; 2951 vim_free(frp2); 2952 2953 frp2 = frp->fr_parent; 2954 if (frp2 != NULL && frp2->fr_layout == frp->fr_layout) 2955 { 2956 // The frame above the parent has the same layout, have to merge 2957 // the frames into this list. 2958 if (frp2->fr_child == frp) 2959 frp2->fr_child = frp->fr_child; 2960 frp->fr_child->fr_prev = frp->fr_prev; 2961 if (frp->fr_prev != NULL) 2962 frp->fr_prev->fr_next = frp->fr_child; 2963 for (frp3 = frp->fr_child; ; frp3 = frp3->fr_next) 2964 { 2965 frp3->fr_parent = frp2; 2966 if (frp3->fr_next == NULL) 2967 { 2968 frp3->fr_next = frp->fr_next; 2969 if (frp->fr_next != NULL) 2970 frp->fr_next->fr_prev = frp3; 2971 break; 2972 } 2973 } 2974 if (topframe->fr_child == frp) 2975 topframe->fr_child = frp2; 2976 vim_free(frp); 2977 } 2978 } 2979 2980 return wp; 2981 } 2982 2983 /* 2984 * Return a pointer to the frame that will receive the empty screen space that 2985 * is left over after "win" is closed. 2986 * 2987 * If 'splitbelow' or 'splitright' is set, the space goes above or to the left 2988 * by default. Otherwise, the free space goes below or to the right. The 2989 * result is that opening a window and then immediately closing it will 2990 * preserve the initial window layout. The 'wfh' and 'wfw' settings are 2991 * respected when possible. 2992 */ 2993 static frame_T * 2994 win_altframe( 2995 win_T *win, 2996 tabpage_T *tp) // tab page "win" is in, NULL for current 2997 { 2998 frame_T *frp; 2999 frame_T *other_fr, *target_fr; 3000 3001 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 3002 return alt_tabpage()->tp_curwin->w_frame; 3003 3004 frp = win->w_frame; 3005 3006 if (frp->fr_prev == NULL) 3007 return frp->fr_next; 3008 if (frp->fr_next == NULL) 3009 return frp->fr_prev; 3010 3011 // By default the next window will get the space that was abandoned by this 3012 // window 3013 target_fr = frp->fr_next; 3014 other_fr = frp->fr_prev; 3015 3016 // If this is part of a column of windows and 'splitbelow' is true then the 3017 // previous window will get the space. 3018 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_COL && p_sb) 3019 { 3020 target_fr = frp->fr_prev; 3021 other_fr = frp->fr_next; 3022 } 3023 3024 // If this is part of a row of windows, and 'splitright' is true then the 3025 // previous window will get the space. 3026 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW && p_spr) 3027 { 3028 target_fr = frp->fr_prev; 3029 other_fr = frp->fr_next; 3030 } 3031 3032 // If 'wfh' or 'wfw' is set for the target and not for the alternate 3033 // window, reverse the selection. 3034 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW) 3035 { 3036 if (frame_fixed_width(target_fr) && !frame_fixed_width(other_fr)) 3037 target_fr = other_fr; 3038 } 3039 else 3040 { 3041 if (frame_fixed_height(target_fr) && !frame_fixed_height(other_fr)) 3042 target_fr = other_fr; 3043 } 3044 3045 return target_fr; 3046 } 3047 3048 /* 3049 * Return the tabpage that will be used if the current one is closed. 3050 */ 3051 static tabpage_T * 3052 alt_tabpage(void) 3053 { 3054 tabpage_T *tp; 3055 3056 // Use the next tab page if possible. 3057 if (curtab->tp_next != NULL) 3058 return curtab->tp_next; 3059 3060 // Find the last but one tab page. 3061 for (tp = first_tabpage; tp->tp_next != curtab; tp = tp->tp_next) 3062 ; 3063 return tp; 3064 } 3065 3066 /* 3067 * Find the left-upper window in frame "frp". 3068 */ 3069 static win_T * 3070 frame2win(frame_T *frp) 3071 { 3072 while (frp->fr_win == NULL) 3073 frp = frp->fr_child; 3074 return frp->fr_win; 3075 } 3076 3077 /* 3078 * Return TRUE if frame "frp" contains window "wp". 3079 */ 3080 static int 3081 frame_has_win(frame_T *frp, win_T *wp) 3082 { 3083 frame_T *p; 3084 3085 if (frp->fr_layout == FR_LEAF) 3086 return frp->fr_win == wp; 3087 3088 FOR_ALL_FRAMES(p, frp->fr_child) 3089 if (frame_has_win(p, wp)) 3090 return TRUE; 3091 return FALSE; 3092 } 3093 3094 /* 3095 * Set a new height for a frame. Recursively sets the height for contained 3096 * frames and windows. Caller must take care of positions. 3097 */ 3098 static void 3099 frame_new_height( 3100 frame_T *topfrp, 3101 int height, 3102 int topfirst, // resize topmost contained frame first 3103 int wfh) // obey 'winfixheight' when there is a choice; 3104 // may cause the height not to be set 3105 { 3106 frame_T *frp; 3107 int extra_lines; 3108 int h; 3109 3110 if (topfrp->fr_win != NULL) 3111 { 3112 // Simple case: just one window. 3113 win_new_height(topfrp->fr_win, 3114 height - topfrp->fr_win->w_status_height 3115 - WINBAR_HEIGHT(topfrp->fr_win)); 3116 } 3117 else if (topfrp->fr_layout == FR_ROW) 3118 { 3119 do 3120 { 3121 // All frames in this row get the same new height. 3122 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3123 { 3124 frame_new_height(frp, height, topfirst, wfh); 3125 if (frp->fr_height > height) 3126 { 3127 // Could not fit the windows, make the whole row higher. 3128 height = frp->fr_height; 3129 break; 3130 } 3131 } 3132 } 3133 while (frp != NULL); 3134 } 3135 else // fr_layout == FR_COL 3136 { 3137 // Complicated case: Resize a column of frames. Resize the bottom 3138 // frame first, frames above that when needed. 3139 3140 frp = topfrp->fr_child; 3141 if (wfh) 3142 // Advance past frames with one window with 'wfh' set. 3143 while (frame_fixed_height(frp)) 3144 { 3145 frp = frp->fr_next; 3146 if (frp == NULL) 3147 return; // no frame without 'wfh', give up 3148 } 3149 if (!topfirst) 3150 { 3151 // Find the bottom frame of this column 3152 while (frp->fr_next != NULL) 3153 frp = frp->fr_next; 3154 if (wfh) 3155 // Advance back for frames with one window with 'wfh' set. 3156 while (frame_fixed_height(frp)) 3157 frp = frp->fr_prev; 3158 } 3159 3160 extra_lines = height - topfrp->fr_height; 3161 if (extra_lines < 0) 3162 { 3163 // reduce height of contained frames, bottom or top frame first 3164 while (frp != NULL) 3165 { 3166 h = frame_minheight(frp, NULL); 3167 if (frp->fr_height + extra_lines < h) 3168 { 3169 extra_lines += frp->fr_height - h; 3170 frame_new_height(frp, h, topfirst, wfh); 3171 } 3172 else 3173 { 3174 frame_new_height(frp, frp->fr_height + extra_lines, 3175 topfirst, wfh); 3176 break; 3177 } 3178 if (topfirst) 3179 { 3180 do 3181 frp = frp->fr_next; 3182 while (wfh && frp != NULL && frame_fixed_height(frp)); 3183 } 3184 else 3185 { 3186 do 3187 frp = frp->fr_prev; 3188 while (wfh && frp != NULL && frame_fixed_height(frp)); 3189 } 3190 // Increase "height" if we could not reduce enough frames. 3191 if (frp == NULL) 3192 height -= extra_lines; 3193 } 3194 } 3195 else if (extra_lines > 0) 3196 { 3197 // increase height of bottom or top frame 3198 frame_new_height(frp, frp->fr_height + extra_lines, topfirst, wfh); 3199 } 3200 } 3201 topfrp->fr_height = height; 3202 } 3203 3204 /* 3205 * Return TRUE if height of frame "frp" should not be changed because of 3206 * the 'winfixheight' option. 3207 */ 3208 static int 3209 frame_fixed_height(frame_T *frp) 3210 { 3211 // frame with one window: fixed height if 'winfixheight' set. 3212 if (frp->fr_win != NULL) 3213 return frp->fr_win->w_p_wfh; 3214 3215 if (frp->fr_layout == FR_ROW) 3216 { 3217 // The frame is fixed height if one of the frames in the row is fixed 3218 // height. 3219 FOR_ALL_FRAMES(frp, frp->fr_child) 3220 if (frame_fixed_height(frp)) 3221 return TRUE; 3222 return FALSE; 3223 } 3224 3225 // frp->fr_layout == FR_COL: The frame is fixed height if all of the 3226 // frames in the row are fixed height. 3227 FOR_ALL_FRAMES(frp, frp->fr_child) 3228 if (!frame_fixed_height(frp)) 3229 return FALSE; 3230 return TRUE; 3231 } 3232 3233 /* 3234 * Return TRUE if width of frame "frp" should not be changed because of 3235 * the 'winfixwidth' option. 3236 */ 3237 static int 3238 frame_fixed_width(frame_T *frp) 3239 { 3240 // frame with one window: fixed width if 'winfixwidth' set. 3241 if (frp->fr_win != NULL) 3242 return frp->fr_win->w_p_wfw; 3243 3244 if (frp->fr_layout == FR_COL) 3245 { 3246 // The frame is fixed width if one of the frames in the row is fixed 3247 // width. 3248 FOR_ALL_FRAMES(frp, frp->fr_child) 3249 if (frame_fixed_width(frp)) 3250 return TRUE; 3251 return FALSE; 3252 } 3253 3254 // frp->fr_layout == FR_ROW: The frame is fixed width if all of the 3255 // frames in the row are fixed width. 3256 FOR_ALL_FRAMES(frp, frp->fr_child) 3257 if (!frame_fixed_width(frp)) 3258 return FALSE; 3259 return TRUE; 3260 } 3261 3262 /* 3263 * Add a status line to windows at the bottom of "frp". 3264 * Note: Does not check if there is room! 3265 */ 3266 static void 3267 frame_add_statusline(frame_T *frp) 3268 { 3269 win_T *wp; 3270 3271 if (frp->fr_layout == FR_LEAF) 3272 { 3273 wp = frp->fr_win; 3274 if (wp->w_status_height == 0) 3275 { 3276 if (wp->w_height > 0) // don't make it negative 3277 --wp->w_height; 3278 wp->w_status_height = STATUS_HEIGHT; 3279 } 3280 } 3281 else if (frp->fr_layout == FR_ROW) 3282 { 3283 // Handle all the frames in the row. 3284 FOR_ALL_FRAMES(frp, frp->fr_child) 3285 frame_add_statusline(frp); 3286 } 3287 else // frp->fr_layout == FR_COL 3288 { 3289 // Only need to handle the last frame in the column. 3290 for (frp = frp->fr_child; frp->fr_next != NULL; frp = frp->fr_next) 3291 ; 3292 frame_add_statusline(frp); 3293 } 3294 } 3295 3296 /* 3297 * Set width of a frame. Handles recursively going through contained frames. 3298 * May remove separator line for windows at the right side (for win_close()). 3299 */ 3300 static void 3301 frame_new_width( 3302 frame_T *topfrp, 3303 int width, 3304 int leftfirst, // resize leftmost contained frame first 3305 int wfw) // obey 'winfixwidth' when there is a choice; 3306 // may cause the width not to be set 3307 { 3308 frame_T *frp; 3309 int extra_cols; 3310 int w; 3311 win_T *wp; 3312 3313 if (topfrp->fr_layout == FR_LEAF) 3314 { 3315 // Simple case: just one window. 3316 wp = topfrp->fr_win; 3317 // Find out if there are any windows right of this one. 3318 for (frp = topfrp; frp->fr_parent != NULL; frp = frp->fr_parent) 3319 if (frp->fr_parent->fr_layout == FR_ROW && frp->fr_next != NULL) 3320 break; 3321 if (frp->fr_parent == NULL) 3322 wp->w_vsep_width = 0; 3323 win_new_width(wp, width - wp->w_vsep_width); 3324 } 3325 else if (topfrp->fr_layout == FR_COL) 3326 { 3327 do 3328 { 3329 // All frames in this column get the same new width. 3330 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3331 { 3332 frame_new_width(frp, width, leftfirst, wfw); 3333 if (frp->fr_width > width) 3334 { 3335 // Could not fit the windows, make whole column wider. 3336 width = frp->fr_width; 3337 break; 3338 } 3339 } 3340 } while (frp != NULL); 3341 } 3342 else // fr_layout == FR_ROW 3343 { 3344 // Complicated case: Resize a row of frames. Resize the rightmost 3345 // frame first, frames left of it when needed. 3346 3347 frp = topfrp->fr_child; 3348 if (wfw) 3349 // Advance past frames with one window with 'wfw' set. 3350 while (frame_fixed_width(frp)) 3351 { 3352 frp = frp->fr_next; 3353 if (frp == NULL) 3354 return; // no frame without 'wfw', give up 3355 } 3356 if (!leftfirst) 3357 { 3358 // Find the rightmost frame of this row 3359 while (frp->fr_next != NULL) 3360 frp = frp->fr_next; 3361 if (wfw) 3362 // Advance back for frames with one window with 'wfw' set. 3363 while (frame_fixed_width(frp)) 3364 frp = frp->fr_prev; 3365 } 3366 3367 extra_cols = width - topfrp->fr_width; 3368 if (extra_cols < 0) 3369 { 3370 // reduce frame width, rightmost frame first 3371 while (frp != NULL) 3372 { 3373 w = frame_minwidth(frp, NULL); 3374 if (frp->fr_width + extra_cols < w) 3375 { 3376 extra_cols += frp->fr_width - w; 3377 frame_new_width(frp, w, leftfirst, wfw); 3378 } 3379 else 3380 { 3381 frame_new_width(frp, frp->fr_width + extra_cols, 3382 leftfirst, wfw); 3383 break; 3384 } 3385 if (leftfirst) 3386 { 3387 do 3388 frp = frp->fr_next; 3389 while (wfw && frp != NULL && frame_fixed_width(frp)); 3390 } 3391 else 3392 { 3393 do 3394 frp = frp->fr_prev; 3395 while (wfw && frp != NULL && frame_fixed_width(frp)); 3396 } 3397 // Increase "width" if we could not reduce enough frames. 3398 if (frp == NULL) 3399 width -= extra_cols; 3400 } 3401 } 3402 else if (extra_cols > 0) 3403 { 3404 // increase width of rightmost frame 3405 frame_new_width(frp, frp->fr_width + extra_cols, leftfirst, wfw); 3406 } 3407 } 3408 topfrp->fr_width = width; 3409 } 3410 3411 /* 3412 * Add the vertical separator to windows at the right side of "frp". 3413 * Note: Does not check if there is room! 3414 */ 3415 static void 3416 frame_add_vsep(frame_T *frp) 3417 { 3418 win_T *wp; 3419 3420 if (frp->fr_layout == FR_LEAF) 3421 { 3422 wp = frp->fr_win; 3423 if (wp->w_vsep_width == 0) 3424 { 3425 if (wp->w_width > 0) // don't make it negative 3426 --wp->w_width; 3427 wp->w_vsep_width = 1; 3428 } 3429 } 3430 else if (frp->fr_layout == FR_COL) 3431 { 3432 // Handle all the frames in the column. 3433 FOR_ALL_FRAMES(frp, frp->fr_child) 3434 frame_add_vsep(frp); 3435 } 3436 else // frp->fr_layout == FR_ROW 3437 { 3438 // Only need to handle the last frame in the row. 3439 frp = frp->fr_child; 3440 while (frp->fr_next != NULL) 3441 frp = frp->fr_next; 3442 frame_add_vsep(frp); 3443 } 3444 } 3445 3446 /* 3447 * Set frame width from the window it contains. 3448 */ 3449 static void 3450 frame_fix_width(win_T *wp) 3451 { 3452 wp->w_frame->fr_width = wp->w_width + wp->w_vsep_width; 3453 } 3454 3455 /* 3456 * Set frame height from the window it contains. 3457 */ 3458 static void 3459 frame_fix_height(win_T *wp) 3460 { 3461 wp->w_frame->fr_height = VISIBLE_HEIGHT(wp) + wp->w_status_height; 3462 } 3463 3464 /* 3465 * Compute the minimal height for frame "topfrp". 3466 * Uses the 'winminheight' option. 3467 * When "next_curwin" isn't NULL, use p_wh for this window. 3468 * When "next_curwin" is NOWIN, don't use at least one line for the current 3469 * window. 3470 */ 3471 static int 3472 frame_minheight(frame_T *topfrp, win_T *next_curwin) 3473 { 3474 frame_T *frp; 3475 int m; 3476 int n; 3477 3478 if (topfrp->fr_win != NULL) 3479 { 3480 if (topfrp->fr_win == next_curwin) 3481 m = p_wh + topfrp->fr_win->w_status_height; 3482 else 3483 { 3484 // window: minimal height of the window plus status line 3485 m = p_wmh + topfrp->fr_win->w_status_height; 3486 if (topfrp->fr_win == curwin && next_curwin == NULL) 3487 { 3488 // Current window is minimal one line high and WinBar is 3489 // visible. 3490 if (p_wmh == 0) 3491 ++m; 3492 m += WINBAR_HEIGHT(curwin); 3493 } 3494 } 3495 } 3496 else if (topfrp->fr_layout == FR_ROW) 3497 { 3498 // get the minimal height from each frame in this row 3499 m = 0; 3500 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3501 { 3502 n = frame_minheight(frp, next_curwin); 3503 if (n > m) 3504 m = n; 3505 } 3506 } 3507 else 3508 { 3509 // Add up the minimal heights for all frames in this column. 3510 m = 0; 3511 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3512 m += frame_minheight(frp, next_curwin); 3513 } 3514 3515 return m; 3516 } 3517 3518 /* 3519 * Compute the minimal width for frame "topfrp". 3520 * When "next_curwin" isn't NULL, use p_wiw for this window. 3521 * When "next_curwin" is NOWIN, don't use at least one column for the current 3522 * window. 3523 */ 3524 static int 3525 frame_minwidth( 3526 frame_T *topfrp, 3527 win_T *next_curwin) // use p_wh and p_wiw for next_curwin 3528 { 3529 frame_T *frp; 3530 int m, n; 3531 3532 if (topfrp->fr_win != NULL) 3533 { 3534 if (topfrp->fr_win == next_curwin) 3535 m = p_wiw + topfrp->fr_win->w_vsep_width; 3536 else 3537 { 3538 // window: minimal width of the window plus separator column 3539 m = p_wmw + topfrp->fr_win->w_vsep_width; 3540 // Current window is minimal one column wide 3541 if (p_wmw == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3542 ++m; 3543 } 3544 } 3545 else if (topfrp->fr_layout == FR_COL) 3546 { 3547 // get the minimal width from each frame in this column 3548 m = 0; 3549 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3550 { 3551 n = frame_minwidth(frp, next_curwin); 3552 if (n > m) 3553 m = n; 3554 } 3555 } 3556 else 3557 { 3558 // Add up the minimal widths for all frames in this row. 3559 m = 0; 3560 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3561 m += frame_minwidth(frp, next_curwin); 3562 } 3563 3564 return m; 3565 } 3566 3567 3568 /* 3569 * Try to close all windows except current one. 3570 * Buffers in the other windows become hidden if 'hidden' is set, or '!' is 3571 * used and the buffer was modified. 3572 * 3573 * Used by ":bdel" and ":only". 3574 */ 3575 void 3576 close_others( 3577 int message, 3578 int forceit) // always hide all other windows 3579 { 3580 win_T *wp; 3581 win_T *nextwp; 3582 int r; 3583 3584 if (one_window()) 3585 { 3586 if (message && !autocmd_busy) 3587 msg(_(m_onlyone)); 3588 return; 3589 } 3590 3591 // Be very careful here: autocommands may change the window layout. 3592 for (wp = firstwin; win_valid(wp); wp = nextwp) 3593 { 3594 nextwp = wp->w_next; 3595 if (wp != curwin) // don't close current window 3596 { 3597 3598 // Check if it's allowed to abandon this window 3599 r = can_abandon(wp->w_buffer, forceit); 3600 if (!win_valid(wp)) // autocommands messed wp up 3601 { 3602 nextwp = firstwin; 3603 continue; 3604 } 3605 if (!r) 3606 { 3607 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 3608 if (message && (p_confirm 3609 || (cmdmod.cmod_flags & CMOD_CONFIRM)) && p_write) 3610 { 3611 dialog_changed(wp->w_buffer, FALSE); 3612 if (!win_valid(wp)) // autocommands messed wp up 3613 { 3614 nextwp = firstwin; 3615 continue; 3616 } 3617 } 3618 if (bufIsChanged(wp->w_buffer)) 3619 #endif 3620 continue; 3621 } 3622 win_close(wp, !buf_hide(wp->w_buffer) 3623 && !bufIsChanged(wp->w_buffer)); 3624 } 3625 } 3626 3627 if (message && !ONE_WINDOW) 3628 emsg(_("E445: Other window contains changes")); 3629 } 3630 3631 static void 3632 win_init_empty(win_T *wp) 3633 { 3634 redraw_win_later(wp, NOT_VALID); 3635 wp->w_lines_valid = 0; 3636 wp->w_cursor.lnum = 1; 3637 wp->w_curswant = wp->w_cursor.col = 0; 3638 wp->w_cursor.coladd = 0; 3639 wp->w_pcmark.lnum = 1; // pcmark not cleared but set to line 1 3640 wp->w_pcmark.col = 0; 3641 wp->w_prev_pcmark.lnum = 0; 3642 wp->w_prev_pcmark.col = 0; 3643 wp->w_topline = 1; 3644 #ifdef FEAT_DIFF 3645 wp->w_topfill = 0; 3646 #endif 3647 wp->w_botline = 2; 3648 #if defined(FEAT_SYN_HL) || defined(FEAT_SPELL) 3649 wp->w_s = &wp->w_buffer->b_s; 3650 #endif 3651 } 3652 3653 /* 3654 * Init the current window "curwin". 3655 * Called when a new file is being edited. 3656 */ 3657 void 3658 curwin_init(void) 3659 { 3660 win_init_empty(curwin); 3661 } 3662 3663 /* 3664 * Allocate the first window and put an empty buffer in it. 3665 * Called from main(). 3666 * Return FAIL when something goes wrong (out of memory). 3667 */ 3668 int 3669 win_alloc_first(void) 3670 { 3671 if (win_alloc_firstwin(NULL) == FAIL) 3672 return FAIL; 3673 3674 first_tabpage = alloc_tabpage(); 3675 if (first_tabpage == NULL) 3676 return FAIL; 3677 first_tabpage->tp_topframe = topframe; 3678 curtab = first_tabpage; 3679 curtab->tp_firstwin = firstwin; 3680 curtab->tp_lastwin = lastwin; 3681 curtab->tp_curwin = curwin; 3682 3683 return OK; 3684 } 3685 3686 /* 3687 * Allocate and init a window that is not a regular window. 3688 * This can only be done after the first window is fully initialized, thus it 3689 * can't be in win_alloc_first(). 3690 */ 3691 win_T * 3692 win_alloc_popup_win(void) 3693 { 3694 win_T *wp; 3695 3696 wp = win_alloc(NULL, TRUE); 3697 if (wp != NULL) 3698 { 3699 // We need to initialize options with something, using the current 3700 // window makes most sense. 3701 win_init_some(wp, curwin); 3702 3703 RESET_BINDING(wp); 3704 new_frame(wp); 3705 } 3706 return wp; 3707 } 3708 3709 /* 3710 * Initialize window "wp" to display buffer "buf". 3711 */ 3712 void 3713 win_init_popup_win(win_T *wp, buf_T *buf) 3714 { 3715 wp->w_buffer = buf; 3716 ++buf->b_nwindows; 3717 win_init_empty(wp); // set cursor and topline to safe values 3718 3719 // Make sure w_localdir and globaldir are NULL to avoid a chdir() in 3720 // win_enter_ext(). 3721 VIM_CLEAR(wp->w_localdir); 3722 } 3723 3724 /* 3725 * Allocate the first window or the first window in a new tab page. 3726 * When "oldwin" is NULL create an empty buffer for it. 3727 * When "oldwin" is not NULL copy info from it to the new window. 3728 * Return FAIL when something goes wrong (out of memory). 3729 */ 3730 static int 3731 win_alloc_firstwin(win_T *oldwin) 3732 { 3733 curwin = win_alloc(NULL, FALSE); 3734 if (oldwin == NULL) 3735 { 3736 // Very first window, need to create an empty buffer for it and 3737 // initialize from scratch. 3738 curbuf = buflist_new(NULL, NULL, 1L, BLN_LISTED); 3739 if (curwin == NULL || curbuf == NULL) 3740 return FAIL; 3741 curwin->w_buffer = curbuf; 3742 #ifdef FEAT_SYN_HL 3743 curwin->w_s = &(curbuf->b_s); 3744 #endif 3745 curbuf->b_nwindows = 1; // there is one window 3746 curwin->w_alist = &global_alist; 3747 curwin_init(); // init current window 3748 } 3749 else 3750 { 3751 // First window in new tab page, initialize it from "oldwin". 3752 win_init(curwin, oldwin, 0); 3753 3754 // We don't want cursor- and scroll-binding in the first window. 3755 RESET_BINDING(curwin); 3756 } 3757 3758 new_frame(curwin); 3759 if (curwin->w_frame == NULL) 3760 return FAIL; 3761 topframe = curwin->w_frame; 3762 topframe->fr_width = Columns; 3763 topframe->fr_height = Rows - p_ch; 3764 3765 return OK; 3766 } 3767 3768 /* 3769 * Create a frame for window "wp". 3770 */ 3771 static void 3772 new_frame(win_T *wp) 3773 { 3774 frame_T *frp = ALLOC_CLEAR_ONE(frame_T); 3775 3776 wp->w_frame = frp; 3777 if (frp != NULL) 3778 { 3779 frp->fr_layout = FR_LEAF; 3780 frp->fr_win = wp; 3781 } 3782 } 3783 3784 /* 3785 * Initialize the window and frame size to the maximum. 3786 */ 3787 void 3788 win_init_size(void) 3789 { 3790 firstwin->w_height = ROWS_AVAIL; 3791 topframe->fr_height = ROWS_AVAIL; 3792 firstwin->w_width = Columns; 3793 topframe->fr_width = Columns; 3794 } 3795 3796 /* 3797 * Allocate a new tabpage_T and init the values. 3798 * Returns NULL when out of memory. 3799 */ 3800 static tabpage_T * 3801 alloc_tabpage(void) 3802 { 3803 tabpage_T *tp; 3804 # ifdef FEAT_GUI 3805 int i; 3806 # endif 3807 3808 3809 tp = ALLOC_CLEAR_ONE(tabpage_T); 3810 if (tp == NULL) 3811 return NULL; 3812 3813 # ifdef FEAT_EVAL 3814 // init t: variables 3815 tp->tp_vars = dict_alloc(); 3816 if (tp->tp_vars == NULL) 3817 { 3818 vim_free(tp); 3819 return NULL; 3820 } 3821 init_var_dict(tp->tp_vars, &tp->tp_winvar, VAR_SCOPE); 3822 # endif 3823 3824 # ifdef FEAT_GUI 3825 for (i = 0; i < 3; i++) 3826 tp->tp_prev_which_scrollbars[i] = -1; 3827 # endif 3828 # ifdef FEAT_DIFF 3829 tp->tp_diff_invalid = TRUE; 3830 # endif 3831 tp->tp_ch_used = p_ch; 3832 3833 return tp; 3834 } 3835 3836 void 3837 free_tabpage(tabpage_T *tp) 3838 { 3839 int idx; 3840 3841 # ifdef FEAT_DIFF 3842 diff_clear(tp); 3843 # endif 3844 # ifdef FEAT_PROP_POPUP 3845 while (tp->tp_first_popupwin != NULL) 3846 popup_close_tabpage(tp, tp->tp_first_popupwin->w_id, TRUE); 3847 #endif 3848 for (idx = 0; idx < SNAP_COUNT; ++idx) 3849 clear_snapshot(tp, idx); 3850 #ifdef FEAT_EVAL 3851 vars_clear(&tp->tp_vars->dv_hashtab); // free all t: variables 3852 hash_init(&tp->tp_vars->dv_hashtab); 3853 unref_var_dict(tp->tp_vars); 3854 #endif 3855 3856 if (tp == lastused_tabpage) 3857 lastused_tabpage = NULL; 3858 3859 vim_free(tp->tp_localdir); 3860 vim_free(tp->tp_prevdir); 3861 3862 #ifdef FEAT_PYTHON 3863 python_tabpage_free(tp); 3864 #endif 3865 3866 #ifdef FEAT_PYTHON3 3867 python3_tabpage_free(tp); 3868 #endif 3869 3870 vim_free(tp); 3871 } 3872 3873 /* 3874 * Create a new Tab page with one window. 3875 * It will edit the current buffer, like after ":split". 3876 * When "after" is 0 put it just after the current Tab page. 3877 * Otherwise put it just before tab page "after". 3878 * Return FAIL or OK. 3879 */ 3880 int 3881 win_new_tabpage(int after) 3882 { 3883 tabpage_T *tp = curtab; 3884 tabpage_T *prev_tp = curtab; 3885 tabpage_T *newtp; 3886 int n; 3887 3888 newtp = alloc_tabpage(); 3889 if (newtp == NULL) 3890 return FAIL; 3891 3892 // Remember the current windows in this Tab page. 3893 if (leave_tabpage(curbuf, TRUE) == FAIL) 3894 { 3895 vim_free(newtp); 3896 return FAIL; 3897 } 3898 curtab = newtp; 3899 3900 newtp->tp_localdir = (tp->tp_localdir == NULL) 3901 ? NULL : vim_strsave(tp->tp_localdir); 3902 // Create a new empty window. 3903 if (win_alloc_firstwin(tp->tp_curwin) == OK) 3904 { 3905 // Make the new Tab page the new topframe. 3906 if (after == 1) 3907 { 3908 // New tab page becomes the first one. 3909 newtp->tp_next = first_tabpage; 3910 first_tabpage = newtp; 3911 } 3912 else 3913 { 3914 if (after > 0) 3915 { 3916 // Put new tab page before tab page "after". 3917 n = 2; 3918 for (tp = first_tabpage; tp->tp_next != NULL 3919 && n < after; tp = tp->tp_next) 3920 ++n; 3921 } 3922 newtp->tp_next = tp->tp_next; 3923 tp->tp_next = newtp; 3924 } 3925 newtp->tp_firstwin = newtp->tp_lastwin = newtp->tp_curwin = curwin; 3926 3927 win_init_size(); 3928 firstwin->w_winrow = tabline_height(); 3929 win_comp_scroll(curwin); 3930 3931 newtp->tp_topframe = topframe; 3932 last_status(FALSE); 3933 3934 lastused_tabpage = prev_tp; 3935 3936 #if defined(FEAT_GUI) 3937 // When 'guioptions' includes 'L' or 'R' may have to remove or add 3938 // scrollbars. Have to update them anyway. 3939 gui_may_update_scrollbars(); 3940 #endif 3941 #ifdef FEAT_JOB_CHANNEL 3942 entering_window(curwin); 3943 #endif 3944 3945 redraw_all_later(NOT_VALID); 3946 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 3947 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 3948 apply_autocmds(EVENT_TABNEW, NULL, NULL, FALSE, curbuf); 3949 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3950 return OK; 3951 } 3952 3953 // Failed, get back the previous Tab page 3954 enter_tabpage(curtab, curbuf, TRUE, TRUE); 3955 return FAIL; 3956 } 3957 3958 /* 3959 * Open a new tab page if ":tab cmd" was used. It will edit the same buffer, 3960 * like with ":split". 3961 * Returns OK if a new tab page was created, FAIL otherwise. 3962 */ 3963 static int 3964 may_open_tabpage(void) 3965 { 3966 int n = (cmdmod.cmod_tab == 0) 3967 ? postponed_split_tab : cmdmod.cmod_tab; 3968 3969 if (n != 0) 3970 { 3971 cmdmod.cmod_tab = 0; // reset it to avoid doing it twice 3972 postponed_split_tab = 0; 3973 return win_new_tabpage(n); 3974 } 3975 return FAIL; 3976 } 3977 3978 /* 3979 * Create up to "maxcount" tabpages with empty windows. 3980 * Returns the number of resulting tab pages. 3981 */ 3982 int 3983 make_tabpages(int maxcount) 3984 { 3985 int count = maxcount; 3986 int todo; 3987 3988 // Limit to 'tabpagemax' tabs. 3989 if (count > p_tpm) 3990 count = p_tpm; 3991 3992 /* 3993 * Don't execute autocommands while creating the tab pages. Must do that 3994 * when putting the buffers in the windows. 3995 */ 3996 block_autocmds(); 3997 3998 for (todo = count - 1; todo > 0; --todo) 3999 if (win_new_tabpage(0) == FAIL) 4000 break; 4001 4002 unblock_autocmds(); 4003 4004 // return actual number of tab pages 4005 return (count - todo); 4006 } 4007 4008 /* 4009 * Return TRUE when "tpc" points to a valid tab page. 4010 */ 4011 int 4012 valid_tabpage(tabpage_T *tpc) 4013 { 4014 tabpage_T *tp; 4015 4016 FOR_ALL_TABPAGES(tp) 4017 if (tp == tpc) 4018 return TRUE; 4019 return FALSE; 4020 } 4021 4022 /* 4023 * Return TRUE when "tpc" points to a valid tab page and at least one window is 4024 * valid. 4025 */ 4026 int 4027 valid_tabpage_win(tabpage_T *tpc) 4028 { 4029 tabpage_T *tp; 4030 win_T *wp; 4031 4032 FOR_ALL_TABPAGES(tp) 4033 { 4034 if (tp == tpc) 4035 { 4036 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 4037 { 4038 if (win_valid_any_tab(wp)) 4039 return TRUE; 4040 } 4041 return FALSE; 4042 } 4043 } 4044 // shouldn't happen 4045 return FALSE; 4046 } 4047 4048 /* 4049 * Close tabpage "tab", assuming it has no windows in it. 4050 * There must be another tabpage or this will crash. 4051 */ 4052 void 4053 close_tabpage(tabpage_T *tab) 4054 { 4055 tabpage_T *ptp; 4056 4057 if (tab == first_tabpage) 4058 { 4059 first_tabpage = tab->tp_next; 4060 ptp = first_tabpage; 4061 } 4062 else 4063 { 4064 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tab; 4065 ptp = ptp->tp_next) 4066 ; 4067 assert(ptp != NULL); 4068 ptp->tp_next = tab->tp_next; 4069 } 4070 4071 goto_tabpage_tp(ptp, FALSE, FALSE); 4072 free_tabpage(tab); 4073 } 4074 4075 /* 4076 * Find tab page "n" (first one is 1). Returns NULL when not found. 4077 */ 4078 tabpage_T * 4079 find_tabpage(int n) 4080 { 4081 tabpage_T *tp; 4082 int i = 1; 4083 4084 if (n == 0) 4085 return curtab; 4086 4087 for (tp = first_tabpage; tp != NULL && i != n; tp = tp->tp_next) 4088 ++i; 4089 return tp; 4090 } 4091 4092 /* 4093 * Get index of tab page "tp". First one has index 1. 4094 * When not found returns number of tab pages plus one. 4095 */ 4096 int 4097 tabpage_index(tabpage_T *ftp) 4098 { 4099 int i = 1; 4100 tabpage_T *tp; 4101 4102 for (tp = first_tabpage; tp != NULL && tp != ftp; tp = tp->tp_next) 4103 ++i; 4104 return i; 4105 } 4106 4107 /* 4108 * Prepare for leaving the current tab page. 4109 * When autocommands change "curtab" we don't leave the tab page and return 4110 * FAIL. 4111 * Careful: When OK is returned need to get a new tab page very very soon! 4112 */ 4113 static int 4114 leave_tabpage( 4115 buf_T *new_curbuf UNUSED, // what is going to be the new curbuf, 4116 // NULL if unknown 4117 int trigger_leave_autocmds UNUSED) 4118 { 4119 tabpage_T *tp = curtab; 4120 4121 #ifdef FEAT_JOB_CHANNEL 4122 leaving_window(curwin); 4123 #endif 4124 reset_VIsual_and_resel(); // stop Visual mode 4125 if (trigger_leave_autocmds) 4126 { 4127 if (new_curbuf != curbuf) 4128 { 4129 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4130 if (curtab != tp) 4131 return FAIL; 4132 } 4133 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4134 if (curtab != tp) 4135 return FAIL; 4136 apply_autocmds(EVENT_TABLEAVE, NULL, NULL, FALSE, curbuf); 4137 if (curtab != tp) 4138 return FAIL; 4139 } 4140 #if defined(FEAT_GUI) 4141 // Remove the scrollbars. They may be added back later. 4142 if (gui.in_use) 4143 gui_remove_scrollbars(); 4144 #endif 4145 tp->tp_curwin = curwin; 4146 tp->tp_prevwin = prevwin; 4147 tp->tp_firstwin = firstwin; 4148 tp->tp_lastwin = lastwin; 4149 tp->tp_old_Rows = Rows; 4150 tp->tp_old_Columns = Columns; 4151 firstwin = NULL; 4152 lastwin = NULL; 4153 return OK; 4154 } 4155 4156 /* 4157 * Start using tab page "tp". 4158 * Only to be used after leave_tabpage() or freeing the current tab page. 4159 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4160 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4161 */ 4162 static void 4163 enter_tabpage( 4164 tabpage_T *tp, 4165 buf_T *old_curbuf UNUSED, 4166 int trigger_enter_autocmds, 4167 int trigger_leave_autocmds) 4168 { 4169 int row; 4170 int old_off = tp->tp_firstwin->w_winrow; 4171 win_T *next_prevwin = tp->tp_prevwin; 4172 tabpage_T *last_tab = curtab; 4173 4174 curtab = tp; 4175 firstwin = tp->tp_firstwin; 4176 lastwin = tp->tp_lastwin; 4177 topframe = tp->tp_topframe; 4178 4179 // We would like doing the TabEnter event first, but we don't have a 4180 // valid current window yet, which may break some commands. 4181 // This triggers autocommands, thus may make "tp" invalid. 4182 win_enter_ext(tp->tp_curwin, FALSE, TRUE, FALSE, 4183 trigger_enter_autocmds, trigger_leave_autocmds); 4184 prevwin = next_prevwin; 4185 4186 last_status(FALSE); // status line may appear or disappear 4187 row = win_comp_pos(); // recompute w_winrow for all windows 4188 #ifdef FEAT_DIFF 4189 diff_need_scrollbind = TRUE; 4190 #endif 4191 4192 // The tabpage line may have appeared or disappeared, may need to resize 4193 // the frames for that. When the Vim window was resized need to update 4194 // frame sizes too. Use the stored value of p_ch, so that it can be 4195 // different for each tab page. 4196 if (p_ch != curtab->tp_ch_used) 4197 clear_cmdline = TRUE; 4198 p_ch = curtab->tp_ch_used; 4199 4200 // When cmdheight is changed in a tab page with '<C-w>-', cmdline_row is 4201 // changed but p_ch and tp_ch_used are not changed. Thus we also need to 4202 // check cmdline_row. 4203 if ((row < cmdline_row) && (cmdline_row <= Rows - p_ch)) 4204 clear_cmdline = TRUE; 4205 4206 if (curtab->tp_old_Rows != Rows || (old_off != firstwin->w_winrow 4207 #ifdef FEAT_GUI_TABLINE 4208 && !gui_use_tabline() 4209 #endif 4210 )) 4211 shell_new_rows(); 4212 if (curtab->tp_old_Columns != Columns && starting == 0) 4213 shell_new_columns(); // update window widths 4214 4215 lastused_tabpage = last_tab; 4216 4217 #if defined(FEAT_GUI) 4218 // When 'guioptions' includes 'L' or 'R' may have to remove or add 4219 // scrollbars. Have to update them anyway. 4220 gui_may_update_scrollbars(); 4221 #endif 4222 4223 // Apply autocommands after updating the display, when 'rows' and 4224 // 'columns' have been set correctly. 4225 if (trigger_enter_autocmds) 4226 { 4227 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 4228 if (old_curbuf != curbuf) 4229 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4230 } 4231 4232 redraw_all_later(NOT_VALID); 4233 } 4234 4235 /* 4236 * Go to tab page "n". For ":tab N" and "Ngt". 4237 * When "n" is 9999 go to the last tab page. 4238 */ 4239 void 4240 goto_tabpage(int n) 4241 { 4242 tabpage_T *tp = NULL; // shut up compiler 4243 tabpage_T *ttp; 4244 int i; 4245 4246 if (text_locked()) 4247 { 4248 // Not allowed when editing the command line. 4249 text_locked_msg(); 4250 return; 4251 } 4252 4253 // If there is only one it can't work. 4254 if (first_tabpage->tp_next == NULL) 4255 { 4256 if (n > 1) 4257 beep_flush(); 4258 return; 4259 } 4260 4261 if (n == 0) 4262 { 4263 // No count, go to next tab page, wrap around end. 4264 if (curtab->tp_next == NULL) 4265 tp = first_tabpage; 4266 else 4267 tp = curtab->tp_next; 4268 } 4269 else if (n < 0) 4270 { 4271 // "gT": go to previous tab page, wrap around end. "N gT" repeats 4272 // this N times. 4273 ttp = curtab; 4274 for (i = n; i < 0; ++i) 4275 { 4276 for (tp = first_tabpage; tp->tp_next != ttp && tp->tp_next != NULL; 4277 tp = tp->tp_next) 4278 ; 4279 ttp = tp; 4280 } 4281 } 4282 else if (n == 9999) 4283 { 4284 // Go to last tab page. 4285 for (tp = first_tabpage; tp->tp_next != NULL; tp = tp->tp_next) 4286 ; 4287 } 4288 else 4289 { 4290 // Go to tab page "n". 4291 tp = find_tabpage(n); 4292 if (tp == NULL) 4293 { 4294 beep_flush(); 4295 return; 4296 } 4297 } 4298 4299 goto_tabpage_tp(tp, TRUE, TRUE); 4300 4301 #ifdef FEAT_GUI_TABLINE 4302 if (gui_use_tabline()) 4303 gui_mch_set_curtab(tabpage_index(curtab)); 4304 #endif 4305 } 4306 4307 /* 4308 * Go to tabpage "tp". 4309 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4310 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4311 * Note: doesn't update the GUI tab. 4312 */ 4313 void 4314 goto_tabpage_tp( 4315 tabpage_T *tp, 4316 int trigger_enter_autocmds, 4317 int trigger_leave_autocmds) 4318 { 4319 // Don't repeat a message in another tab page. 4320 set_keep_msg(NULL, 0); 4321 4322 if (tp != curtab && leave_tabpage(tp->tp_curwin->w_buffer, 4323 trigger_leave_autocmds) == OK) 4324 { 4325 if (valid_tabpage(tp)) 4326 enter_tabpage(tp, curbuf, trigger_enter_autocmds, 4327 trigger_leave_autocmds); 4328 else 4329 enter_tabpage(curtab, curbuf, trigger_enter_autocmds, 4330 trigger_leave_autocmds); 4331 } 4332 } 4333 4334 /* 4335 * Go to the last accessed tab page, if there is one. 4336 * Return OK or FAIL 4337 */ 4338 int 4339 goto_tabpage_lastused(void) 4340 { 4341 if (valid_tabpage(lastused_tabpage)) 4342 { 4343 goto_tabpage_tp(lastused_tabpage, TRUE, TRUE); 4344 return OK; 4345 } 4346 return FAIL; 4347 } 4348 4349 /* 4350 * Enter window "wp" in tab page "tp". 4351 * Also updates the GUI tab. 4352 */ 4353 void 4354 goto_tabpage_win(tabpage_T *tp, win_T *wp) 4355 { 4356 goto_tabpage_tp(tp, TRUE, TRUE); 4357 if (curtab == tp && win_valid(wp)) 4358 { 4359 win_enter(wp, TRUE); 4360 # ifdef FEAT_GUI_TABLINE 4361 if (gui_use_tabline()) 4362 gui_mch_set_curtab(tabpage_index(curtab)); 4363 # endif 4364 } 4365 } 4366 4367 /* 4368 * Move the current tab page to after tab page "nr". 4369 */ 4370 void 4371 tabpage_move(int nr) 4372 { 4373 int n = 1; 4374 tabpage_T *tp, *tp_dst; 4375 4376 if (first_tabpage->tp_next == NULL) 4377 return; 4378 4379 for (tp = first_tabpage; tp->tp_next != NULL && n < nr; tp = tp->tp_next) 4380 ++n; 4381 4382 if (tp == curtab || (nr > 0 && tp->tp_next != NULL 4383 && tp->tp_next == curtab)) 4384 return; 4385 4386 tp_dst = tp; 4387 4388 // Remove the current tab page from the list of tab pages. 4389 if (curtab == first_tabpage) 4390 first_tabpage = curtab->tp_next; 4391 else 4392 { 4393 FOR_ALL_TABPAGES(tp) 4394 if (tp->tp_next == curtab) 4395 break; 4396 if (tp == NULL) // "cannot happen" 4397 return; 4398 tp->tp_next = curtab->tp_next; 4399 } 4400 4401 // Re-insert it at the specified position. 4402 if (nr <= 0) 4403 { 4404 curtab->tp_next = first_tabpage; 4405 first_tabpage = curtab; 4406 } 4407 else 4408 { 4409 curtab->tp_next = tp_dst->tp_next; 4410 tp_dst->tp_next = curtab; 4411 } 4412 4413 // Need to redraw the tabline. Tab page contents doesn't change. 4414 redraw_tabline = TRUE; 4415 } 4416 4417 4418 /* 4419 * Go to another window. 4420 * When jumping to another buffer, stop Visual mode. Do this before 4421 * changing windows so we can yank the selection into the '*' register. 4422 * When jumping to another window on the same buffer, adjust its cursor 4423 * position to keep the same Visual area. 4424 */ 4425 void 4426 win_goto(win_T *wp) 4427 { 4428 #ifdef FEAT_CONCEAL 4429 win_T *owp = curwin; 4430 #endif 4431 4432 #ifdef FEAT_PROP_POPUP 4433 if (ERROR_IF_ANY_POPUP_WINDOW) 4434 return; 4435 if (popup_is_popup(wp)) 4436 { 4437 emsg(_("E366: Not allowed to enter a popup window")); 4438 return; 4439 } 4440 #endif 4441 if (text_and_win_locked()) 4442 { 4443 beep_flush(); 4444 text_locked_msg(); 4445 return; 4446 } 4447 if (curbuf_locked()) 4448 return; 4449 4450 if (wp->w_buffer != curbuf) 4451 reset_VIsual_and_resel(); 4452 else if (VIsual_active) 4453 wp->w_cursor = curwin->w_cursor; 4454 4455 #ifdef FEAT_GUI 4456 need_mouse_correct = TRUE; 4457 #endif 4458 win_enter(wp, TRUE); 4459 4460 #ifdef FEAT_CONCEAL 4461 // Conceal cursor line in previous window, unconceal in current window. 4462 if (win_valid(owp) && owp->w_p_cole > 0 && !msg_scrolled) 4463 redrawWinline(owp, owp->w_cursor.lnum); 4464 if (curwin->w_p_cole > 0 && !msg_scrolled) 4465 need_cursor_line_redraw = TRUE; 4466 #endif 4467 } 4468 4469 #if defined(FEAT_PERL) || defined(PROTO) 4470 /* 4471 * Find window number "winnr" (counting top to bottom). 4472 */ 4473 win_T * 4474 win_find_nr(int winnr) 4475 { 4476 win_T *wp; 4477 4478 FOR_ALL_WINDOWS(wp) 4479 if (--winnr == 0) 4480 break; 4481 return wp; 4482 } 4483 #endif 4484 4485 #if ((defined(FEAT_PYTHON) || defined(FEAT_PYTHON3))) || defined(PROTO) 4486 /* 4487 * Find the tabpage for window "win". 4488 */ 4489 tabpage_T * 4490 win_find_tabpage(win_T *win) 4491 { 4492 win_T *wp; 4493 tabpage_T *tp; 4494 4495 FOR_ALL_TAB_WINDOWS(tp, wp) 4496 if (wp == win) 4497 return tp; 4498 return NULL; 4499 } 4500 #endif 4501 4502 /* 4503 * Get the above or below neighbor window of the specified window. 4504 * up - TRUE for the above neighbor 4505 * count - nth neighbor window 4506 * Returns the specified window if the neighbor is not found. 4507 */ 4508 win_T * 4509 win_vert_neighbor(tabpage_T *tp, win_T *wp, int up, long count) 4510 { 4511 frame_T *fr; 4512 frame_T *nfr; 4513 frame_T *foundfr; 4514 4515 #ifdef FEAT_PROP_POPUP 4516 if (popup_is_popup(wp)) 4517 // popups don't have neighbors. 4518 return NULL; 4519 #endif 4520 foundfr = wp->w_frame; 4521 while (count--) 4522 { 4523 /* 4524 * First go upwards in the tree of frames until we find a upwards or 4525 * downwards neighbor. 4526 */ 4527 fr = foundfr; 4528 for (;;) 4529 { 4530 if (fr == tp->tp_topframe) 4531 goto end; 4532 if (up) 4533 nfr = fr->fr_prev; 4534 else 4535 nfr = fr->fr_next; 4536 if (fr->fr_parent->fr_layout == FR_COL && nfr != NULL) 4537 break; 4538 fr = fr->fr_parent; 4539 } 4540 4541 /* 4542 * Now go downwards to find the bottom or top frame in it. 4543 */ 4544 for (;;) 4545 { 4546 if (nfr->fr_layout == FR_LEAF) 4547 { 4548 foundfr = nfr; 4549 break; 4550 } 4551 fr = nfr->fr_child; 4552 if (nfr->fr_layout == FR_ROW) 4553 { 4554 // Find the frame at the cursor row. 4555 while (fr->fr_next != NULL 4556 && frame2win(fr)->w_wincol + fr->fr_width 4557 <= wp->w_wincol + wp->w_wcol) 4558 fr = fr->fr_next; 4559 } 4560 if (nfr->fr_layout == FR_COL && up) 4561 while (fr->fr_next != NULL) 4562 fr = fr->fr_next; 4563 nfr = fr; 4564 } 4565 } 4566 end: 4567 return foundfr != NULL ? foundfr->fr_win : NULL; 4568 } 4569 4570 /* 4571 * Move to window above or below "count" times. 4572 */ 4573 static void 4574 win_goto_ver( 4575 int up, // TRUE to go to win above 4576 long count) 4577 { 4578 win_T *win; 4579 4580 #ifdef FEAT_PROP_POPUP 4581 if (ERROR_IF_TERM_POPUP_WINDOW) 4582 return; 4583 #endif 4584 win = win_vert_neighbor(curtab, curwin, up, count); 4585 if (win != NULL) 4586 win_goto(win); 4587 } 4588 4589 /* 4590 * Get the left or right neighbor window of the specified window. 4591 * left - TRUE for the left neighbor 4592 * count - nth neighbor window 4593 * Returns the specified window if the neighbor is not found. 4594 */ 4595 win_T * 4596 win_horz_neighbor(tabpage_T *tp, win_T *wp, int left, long count) 4597 { 4598 frame_T *fr; 4599 frame_T *nfr; 4600 frame_T *foundfr; 4601 4602 #ifdef FEAT_PROP_POPUP 4603 if (popup_is_popup(wp)) 4604 // popups don't have neighbors. 4605 return NULL; 4606 #endif 4607 foundfr = wp->w_frame; 4608 while (count--) 4609 { 4610 /* 4611 * First go upwards in the tree of frames until we find a left or 4612 * right neighbor. 4613 */ 4614 fr = foundfr; 4615 for (;;) 4616 { 4617 if (fr == tp->tp_topframe) 4618 goto end; 4619 if (left) 4620 nfr = fr->fr_prev; 4621 else 4622 nfr = fr->fr_next; 4623 if (fr->fr_parent->fr_layout == FR_ROW && nfr != NULL) 4624 break; 4625 fr = fr->fr_parent; 4626 } 4627 4628 /* 4629 * Now go downwards to find the leftmost or rightmost frame in it. 4630 */ 4631 for (;;) 4632 { 4633 if (nfr->fr_layout == FR_LEAF) 4634 { 4635 foundfr = nfr; 4636 break; 4637 } 4638 fr = nfr->fr_child; 4639 if (nfr->fr_layout == FR_COL) 4640 { 4641 // Find the frame at the cursor row. 4642 while (fr->fr_next != NULL 4643 && frame2win(fr)->w_winrow + fr->fr_height 4644 <= wp->w_winrow + wp->w_wrow) 4645 fr = fr->fr_next; 4646 } 4647 if (nfr->fr_layout == FR_ROW && left) 4648 while (fr->fr_next != NULL) 4649 fr = fr->fr_next; 4650 nfr = fr; 4651 } 4652 } 4653 end: 4654 return foundfr != NULL ? foundfr->fr_win : NULL; 4655 } 4656 4657 /* 4658 * Move to left or right window. 4659 */ 4660 static void 4661 win_goto_hor( 4662 int left, // TRUE to go to left win 4663 long count) 4664 { 4665 win_T *win; 4666 4667 #ifdef FEAT_PROP_POPUP 4668 if (ERROR_IF_TERM_POPUP_WINDOW) 4669 return; 4670 #endif 4671 win = win_horz_neighbor(curtab, curwin, left, count); 4672 if (win != NULL) 4673 win_goto(win); 4674 } 4675 4676 /* 4677 * Make window "wp" the current window. 4678 */ 4679 void 4680 win_enter(win_T *wp, int undo_sync) 4681 { 4682 win_enter_ext(wp, undo_sync, FALSE, FALSE, TRUE, TRUE); 4683 } 4684 4685 /* 4686 * Make window wp the current window. 4687 * Can be called with "curwin_invalid" TRUE, which means that curwin has just 4688 * been closed and isn't valid. 4689 */ 4690 static void 4691 win_enter_ext( 4692 win_T *wp, 4693 int undo_sync, 4694 int curwin_invalid, 4695 int trigger_new_autocmds, 4696 int trigger_enter_autocmds, 4697 int trigger_leave_autocmds) 4698 { 4699 int other_buffer = FALSE; 4700 4701 if (wp == curwin && !curwin_invalid) // nothing to do 4702 return; 4703 4704 #ifdef FEAT_JOB_CHANNEL 4705 if (!curwin_invalid) 4706 leaving_window(curwin); 4707 #endif 4708 4709 if (!curwin_invalid && trigger_leave_autocmds) 4710 { 4711 /* 4712 * Be careful: If autocommands delete the window, return now. 4713 */ 4714 if (wp->w_buffer != curbuf) 4715 { 4716 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4717 other_buffer = TRUE; 4718 if (!win_valid(wp)) 4719 return; 4720 } 4721 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4722 if (!win_valid(wp)) 4723 return; 4724 #ifdef FEAT_EVAL 4725 // autocmds may abort script processing 4726 if (aborting()) 4727 return; 4728 #endif 4729 } 4730 4731 // sync undo before leaving the current buffer 4732 if (undo_sync && curbuf != wp->w_buffer) 4733 u_sync(FALSE); 4734 4735 // Might need to scroll the old window before switching, e.g., when the 4736 // cursor was moved. 4737 update_topline(); 4738 4739 // may have to copy the buffer options when 'cpo' contains 'S' 4740 if (wp->w_buffer != curbuf) 4741 buf_copy_options(wp->w_buffer, BCO_ENTER | BCO_NOHELP); 4742 if (!curwin_invalid) 4743 { 4744 prevwin = curwin; // remember for CTRL-W p 4745 curwin->w_redr_status = TRUE; 4746 } 4747 curwin = wp; 4748 curbuf = wp->w_buffer; 4749 check_cursor(); 4750 if (!virtual_active()) 4751 curwin->w_cursor.coladd = 0; 4752 changed_line_abv_curs(); // assume cursor position needs updating 4753 4754 if (curwin->w_localdir != NULL || curtab->tp_localdir != NULL) 4755 { 4756 char_u *dirname; 4757 4758 // Window or tab has a local directory: Save current directory as 4759 // global directory (unless that was done already) and change to the 4760 // local directory. 4761 if (globaldir == NULL) 4762 { 4763 char_u cwd[MAXPATHL]; 4764 4765 if (mch_dirname(cwd, MAXPATHL) == OK) 4766 globaldir = vim_strsave(cwd); 4767 } 4768 if (curwin->w_localdir != NULL) 4769 dirname = curwin->w_localdir; 4770 else 4771 dirname = curtab->tp_localdir; 4772 4773 if (mch_chdir((char *)dirname) == 0) 4774 shorten_fnames(TRUE); 4775 } 4776 else if (globaldir != NULL) 4777 { 4778 // Window doesn't have a local directory and we are not in the global 4779 // directory: Change to the global directory. 4780 vim_ignored = mch_chdir((char *)globaldir); 4781 VIM_CLEAR(globaldir); 4782 shorten_fnames(TRUE); 4783 } 4784 4785 #ifdef FEAT_JOB_CHANNEL 4786 entering_window(curwin); 4787 #endif 4788 // Careful: autocommands may close the window and make "wp" invalid 4789 if (trigger_new_autocmds) 4790 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 4791 if (trigger_enter_autocmds) 4792 { 4793 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 4794 if (other_buffer) 4795 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4796 } 4797 4798 #ifdef FEAT_TITLE 4799 maketitle(); 4800 #endif 4801 curwin->w_redr_status = TRUE; 4802 #ifdef FEAT_TERMINAL 4803 if (bt_terminal(curwin->w_buffer)) 4804 // terminal is likely in another mode 4805 redraw_mode = TRUE; 4806 #endif 4807 redraw_tabline = TRUE; 4808 if (restart_edit) 4809 redraw_later(VALID); // causes status line redraw 4810 4811 // set window height to desired minimal value 4812 if (curwin->w_height < p_wh && !curwin->w_p_wfh 4813 #ifdef FEAT_PROP_POPUP 4814 && !popup_is_popup(curwin) 4815 #endif 4816 ) 4817 win_setheight((int)p_wh); 4818 else if (curwin->w_height == 0) 4819 win_setheight(1); 4820 4821 // set window width to desired minimal value 4822 if (curwin->w_width < p_wiw && !curwin->w_p_wfw) 4823 win_setwidth((int)p_wiw); 4824 4825 setmouse(); // in case jumped to/from help buffer 4826 4827 // Change directories when the 'acd' option is set. 4828 DO_AUTOCHDIR; 4829 } 4830 4831 4832 /* 4833 * Jump to the first open window that contains buffer "buf", if one exists. 4834 * Returns a pointer to the window found, otherwise NULL. 4835 */ 4836 win_T * 4837 buf_jump_open_win(buf_T *buf) 4838 { 4839 win_T *wp = NULL; 4840 4841 if (curwin->w_buffer == buf) 4842 wp = curwin; 4843 else 4844 FOR_ALL_WINDOWS(wp) 4845 if (wp->w_buffer == buf) 4846 break; 4847 if (wp != NULL) 4848 win_enter(wp, FALSE); 4849 return wp; 4850 } 4851 4852 /* 4853 * Jump to the first open window in any tab page that contains buffer "buf", 4854 * if one exists. 4855 * Returns a pointer to the window found, otherwise NULL. 4856 */ 4857 win_T * 4858 buf_jump_open_tab(buf_T *buf) 4859 { 4860 win_T *wp = buf_jump_open_win(buf); 4861 tabpage_T *tp; 4862 4863 if (wp != NULL) 4864 return wp; 4865 4866 FOR_ALL_TABPAGES(tp) 4867 if (tp != curtab) 4868 { 4869 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 4870 if (wp->w_buffer == buf) 4871 break; 4872 if (wp != NULL) 4873 { 4874 goto_tabpage_win(tp, wp); 4875 if (curwin != wp) 4876 wp = NULL; // something went wrong 4877 break; 4878 } 4879 } 4880 return wp; 4881 } 4882 4883 static int last_win_id = LOWEST_WIN_ID - 1; 4884 4885 /* 4886 * Allocate a window structure and link it in the window list when "hidden" is 4887 * FALSE. 4888 */ 4889 static win_T * 4890 win_alloc(win_T *after UNUSED, int hidden UNUSED) 4891 { 4892 win_T *new_wp; 4893 4894 /* 4895 * allocate window structure and linesizes arrays 4896 */ 4897 new_wp = ALLOC_CLEAR_ONE(win_T); 4898 if (new_wp == NULL) 4899 return NULL; 4900 4901 if (win_alloc_lines(new_wp) == FAIL) 4902 { 4903 vim_free(new_wp); 4904 return NULL; 4905 } 4906 4907 new_wp->w_id = ++last_win_id; 4908 4909 #ifdef FEAT_EVAL 4910 // init w: variables 4911 new_wp->w_vars = dict_alloc(); 4912 if (new_wp->w_vars == NULL) 4913 { 4914 win_free_lsize(new_wp); 4915 vim_free(new_wp); 4916 return NULL; 4917 } 4918 init_var_dict(new_wp->w_vars, &new_wp->w_winvar, VAR_SCOPE); 4919 #endif 4920 4921 // Don't execute autocommands while the window is not properly 4922 // initialized yet. gui_create_scrollbar() may trigger a FocusGained 4923 // event. 4924 block_autocmds(); 4925 4926 /* 4927 * link the window in the window list 4928 */ 4929 if (!hidden) 4930 win_append(after, new_wp); 4931 new_wp->w_wincol = 0; 4932 new_wp->w_width = Columns; 4933 4934 // position the display and the cursor at the top of the file. 4935 new_wp->w_topline = 1; 4936 #ifdef FEAT_DIFF 4937 new_wp->w_topfill = 0; 4938 #endif 4939 new_wp->w_botline = 2; 4940 new_wp->w_cursor.lnum = 1; 4941 new_wp->w_scbind_pos = 1; 4942 4943 // use global option value for global-local options 4944 new_wp->w_p_so = -1; 4945 new_wp->w_p_siso = -1; 4946 4947 // We won't calculate w_fraction until resizing the window 4948 new_wp->w_fraction = 0; 4949 new_wp->w_prev_fraction_row = -1; 4950 4951 #ifdef FEAT_GUI 4952 if (gui.in_use) 4953 { 4954 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_LEFT], 4955 SBAR_LEFT, new_wp); 4956 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_RIGHT], 4957 SBAR_RIGHT, new_wp); 4958 } 4959 #endif 4960 #ifdef FEAT_FOLDING 4961 foldInitWin(new_wp); 4962 #endif 4963 unblock_autocmds(); 4964 #ifdef FEAT_SEARCH_EXTRA 4965 new_wp->w_match_head = NULL; 4966 new_wp->w_next_match_id = 4; 4967 #endif 4968 return new_wp; 4969 } 4970 4971 /* 4972 * Remove window 'wp' from the window list and free the structure. 4973 */ 4974 static void 4975 win_free( 4976 win_T *wp, 4977 tabpage_T *tp) // tab page "win" is in, NULL for current 4978 { 4979 int i; 4980 buf_T *buf; 4981 wininfo_T *wip; 4982 4983 #ifdef FEAT_FOLDING 4984 clearFolding(wp); 4985 #endif 4986 4987 // reduce the reference count to the argument list. 4988 alist_unlink(wp->w_alist); 4989 4990 // Don't execute autocommands while the window is halfway being deleted. 4991 // gui_mch_destroy_scrollbar() may trigger a FocusGained event. 4992 block_autocmds(); 4993 4994 #ifdef FEAT_LUA 4995 lua_window_free(wp); 4996 #endif 4997 4998 #ifdef FEAT_MZSCHEME 4999 mzscheme_window_free(wp); 5000 #endif 5001 5002 #ifdef FEAT_PERL 5003 perl_win_free(wp); 5004 #endif 5005 5006 #ifdef FEAT_PYTHON 5007 python_window_free(wp); 5008 #endif 5009 5010 #ifdef FEAT_PYTHON3 5011 python3_window_free(wp); 5012 #endif 5013 5014 #ifdef FEAT_TCL 5015 tcl_window_free(wp); 5016 #endif 5017 5018 #ifdef FEAT_RUBY 5019 ruby_window_free(wp); 5020 #endif 5021 5022 clear_winopt(&wp->w_onebuf_opt); 5023 clear_winopt(&wp->w_allbuf_opt); 5024 5025 #ifdef FEAT_EVAL 5026 vars_clear(&wp->w_vars->dv_hashtab); // free all w: variables 5027 hash_init(&wp->w_vars->dv_hashtab); 5028 unref_var_dict(wp->w_vars); 5029 #endif 5030 5031 { 5032 tabpage_T *ttp; 5033 5034 if (prevwin == wp) 5035 prevwin = NULL; 5036 FOR_ALL_TABPAGES(ttp) 5037 if (ttp->tp_prevwin == wp) 5038 ttp->tp_prevwin = NULL; 5039 } 5040 win_free_lsize(wp); 5041 5042 for (i = 0; i < wp->w_tagstacklen; ++i) 5043 { 5044 vim_free(wp->w_tagstack[i].tagname); 5045 vim_free(wp->w_tagstack[i].user_data); 5046 } 5047 vim_free(wp->w_localdir); 5048 vim_free(wp->w_prevdir); 5049 5050 // Remove the window from the b_wininfo lists, it may happen that the 5051 // freed memory is re-used for another window. 5052 FOR_ALL_BUFFERS(buf) 5053 FOR_ALL_BUF_WININFO(buf, wip) 5054 if (wip->wi_win == wp) 5055 { 5056 wininfo_T *wip2; 5057 5058 // If there already is an entry with "wi_win" set to NULL it 5059 // must be removed, it would never be used. 5060 // Skip "wip" itself, otherwise Coverity complains. 5061 for (wip2 = buf->b_wininfo; wip2 != NULL; wip2 = wip2->wi_next) 5062 if (wip2 != wip && wip2->wi_win == NULL) 5063 { 5064 if (wip2->wi_next != NULL) 5065 wip2->wi_next->wi_prev = wip2->wi_prev; 5066 if (wip2->wi_prev == NULL) 5067 buf->b_wininfo = wip2->wi_next; 5068 else 5069 wip2->wi_prev->wi_next = wip2->wi_next; 5070 free_wininfo(wip2); 5071 break; 5072 } 5073 5074 wip->wi_win = NULL; 5075 } 5076 5077 #ifdef FEAT_SEARCH_EXTRA 5078 clear_matches(wp); 5079 #endif 5080 5081 #ifdef FEAT_JUMPLIST 5082 free_jumplist(wp); 5083 #endif 5084 5085 #ifdef FEAT_QUICKFIX 5086 qf_free_all(wp); 5087 #endif 5088 5089 #ifdef FEAT_GUI 5090 if (gui.in_use) 5091 { 5092 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_LEFT]); 5093 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_RIGHT]); 5094 } 5095 #endif // FEAT_GUI 5096 5097 #ifdef FEAT_MENU 5098 remove_winbar(wp); 5099 #endif 5100 #ifdef FEAT_PROP_POPUP 5101 free_callback(&wp->w_close_cb); 5102 free_callback(&wp->w_filter_cb); 5103 for (i = 0; i < 4; ++i) 5104 VIM_CLEAR(wp->w_border_highlight[i]); 5105 vim_free(wp->w_scrollbar_highlight); 5106 vim_free(wp->w_thumb_highlight); 5107 vim_free(wp->w_popup_title); 5108 list_unref(wp->w_popup_mask); 5109 vim_free(wp->w_popup_mask_cells); 5110 #endif 5111 5112 #ifdef FEAT_SYN_HL 5113 vim_free(wp->w_p_cc_cols); 5114 #endif 5115 5116 if (win_valid_any_tab(wp)) 5117 win_remove(wp, tp); 5118 if (autocmd_busy) 5119 { 5120 wp->w_next = au_pending_free_win; 5121 au_pending_free_win = wp; 5122 } 5123 else 5124 vim_free(wp); 5125 5126 unblock_autocmds(); 5127 } 5128 5129 /* 5130 * Return TRUE if "wp" is not in the list of windows: the autocmd window or a 5131 * popup window. 5132 */ 5133 static int 5134 win_unlisted(win_T *wp) 5135 { 5136 return wp == aucmd_win || WIN_IS_POPUP(wp); 5137 } 5138 5139 #if defined(FEAT_PROP_POPUP) || defined(PROTO) 5140 /* 5141 * Free a popup window. This does not take the window out of the window list 5142 * and assumes there is only one toplevel frame, no split. 5143 */ 5144 void 5145 win_free_popup(win_T *win) 5146 { 5147 if (bt_popup(win->w_buffer)) 5148 win_close_buffer(win, DOBUF_WIPE_REUSE, FALSE); 5149 else 5150 close_buffer(win, win->w_buffer, 0, FALSE, FALSE); 5151 # if defined(FEAT_TIMERS) 5152 if (win->w_popup_timer != NULL) 5153 stop_timer(win->w_popup_timer); 5154 # endif 5155 vim_free(win->w_frame); 5156 win_free(win, NULL); 5157 } 5158 #endif 5159 5160 /* 5161 * Append window "wp" in the window list after window "after". 5162 */ 5163 static void 5164 win_append(win_T *after, win_T *wp) 5165 { 5166 win_T *before; 5167 5168 if (after == NULL) // after NULL is in front of the first 5169 before = firstwin; 5170 else 5171 before = after->w_next; 5172 5173 wp->w_next = before; 5174 wp->w_prev = after; 5175 if (after == NULL) 5176 firstwin = wp; 5177 else 5178 after->w_next = wp; 5179 if (before == NULL) 5180 lastwin = wp; 5181 else 5182 before->w_prev = wp; 5183 } 5184 5185 /* 5186 * Remove a window from the window list. 5187 */ 5188 void 5189 win_remove( 5190 win_T *wp, 5191 tabpage_T *tp) // tab page "win" is in, NULL for current 5192 { 5193 if (wp->w_prev != NULL) 5194 wp->w_prev->w_next = wp->w_next; 5195 else if (tp == NULL) 5196 firstwin = curtab->tp_firstwin = wp->w_next; 5197 else 5198 tp->tp_firstwin = wp->w_next; 5199 5200 if (wp->w_next != NULL) 5201 wp->w_next->w_prev = wp->w_prev; 5202 else if (tp == NULL) 5203 lastwin = curtab->tp_lastwin = wp->w_prev; 5204 else 5205 tp->tp_lastwin = wp->w_prev; 5206 } 5207 5208 /* 5209 * Append frame "frp" in a frame list after frame "after". 5210 */ 5211 static void 5212 frame_append(frame_T *after, frame_T *frp) 5213 { 5214 frp->fr_next = after->fr_next; 5215 after->fr_next = frp; 5216 if (frp->fr_next != NULL) 5217 frp->fr_next->fr_prev = frp; 5218 frp->fr_prev = after; 5219 } 5220 5221 /* 5222 * Insert frame "frp" in a frame list before frame "before". 5223 */ 5224 static void 5225 frame_insert(frame_T *before, frame_T *frp) 5226 { 5227 frp->fr_next = before; 5228 frp->fr_prev = before->fr_prev; 5229 before->fr_prev = frp; 5230 if (frp->fr_prev != NULL) 5231 frp->fr_prev->fr_next = frp; 5232 else 5233 frp->fr_parent->fr_child = frp; 5234 } 5235 5236 /* 5237 * Remove a frame from a frame list. 5238 */ 5239 static void 5240 frame_remove(frame_T *frp) 5241 { 5242 if (frp->fr_prev != NULL) 5243 frp->fr_prev->fr_next = frp->fr_next; 5244 else 5245 { 5246 frp->fr_parent->fr_child = frp->fr_next; 5247 // special case: topframe->fr_child == frp 5248 if (topframe->fr_child == frp) 5249 topframe->fr_child = frp->fr_next; 5250 } 5251 if (frp->fr_next != NULL) 5252 frp->fr_next->fr_prev = frp->fr_prev; 5253 } 5254 5255 /* 5256 * Allocate w_lines[] for window "wp". 5257 * Return FAIL for failure, OK for success. 5258 */ 5259 int 5260 win_alloc_lines(win_T *wp) 5261 { 5262 wp->w_lines_valid = 0; 5263 wp->w_lines = ALLOC_CLEAR_MULT(wline_T, Rows ); 5264 if (wp->w_lines == NULL) 5265 return FAIL; 5266 return OK; 5267 } 5268 5269 /* 5270 * free lsize arrays for a window 5271 */ 5272 void 5273 win_free_lsize(win_T *wp) 5274 { 5275 // TODO: why would wp be NULL here? 5276 if (wp != NULL) 5277 VIM_CLEAR(wp->w_lines); 5278 } 5279 5280 /* 5281 * Called from win_new_shellsize() after Rows changed. 5282 * This only does the current tab page, others must be done when made active. 5283 */ 5284 void 5285 shell_new_rows(void) 5286 { 5287 int h = (int)ROWS_AVAIL; 5288 5289 if (firstwin == NULL) // not initialized yet 5290 return; 5291 if (h < frame_minheight(topframe, NULL)) 5292 h = frame_minheight(topframe, NULL); 5293 5294 // First try setting the heights of windows with 'winfixheight'. If 5295 // that doesn't result in the right height, forget about that option. 5296 frame_new_height(topframe, h, FALSE, TRUE); 5297 if (!frame_check_height(topframe, h)) 5298 frame_new_height(topframe, h, FALSE, FALSE); 5299 5300 (void)win_comp_pos(); // recompute w_winrow and w_wincol 5301 compute_cmdrow(); 5302 curtab->tp_ch_used = p_ch; 5303 5304 #if 0 5305 // Disabled: don't want making the screen smaller make a window larger. 5306 if (p_ea) 5307 win_equal(curwin, FALSE, 'v'); 5308 #endif 5309 } 5310 5311 /* 5312 * Called from win_new_shellsize() after Columns changed. 5313 */ 5314 void 5315 shell_new_columns(void) 5316 { 5317 if (firstwin == NULL) // not initialized yet 5318 return; 5319 5320 // First try setting the widths of windows with 'winfixwidth'. If that 5321 // doesn't result in the right width, forget about that option. 5322 frame_new_width(topframe, (int)Columns, FALSE, TRUE); 5323 if (!frame_check_width(topframe, Columns)) 5324 frame_new_width(topframe, (int)Columns, FALSE, FALSE); 5325 5326 (void)win_comp_pos(); // recompute w_winrow and w_wincol 5327 #if 0 5328 // Disabled: don't want making the screen smaller make a window larger. 5329 if (p_ea) 5330 win_equal(curwin, FALSE, 'h'); 5331 #endif 5332 } 5333 5334 #if defined(FEAT_CMDWIN) || defined(PROTO) 5335 /* 5336 * Save the size of all windows in "gap". 5337 */ 5338 void 5339 win_size_save(garray_T *gap) 5340 5341 { 5342 win_T *wp; 5343 5344 ga_init2(gap, (int)sizeof(int), 1); 5345 if (ga_grow(gap, win_count() * 2 + 1) == OK) 5346 { 5347 // first entry is value of 'lines' 5348 ((int *)gap->ga_data)[gap->ga_len++] = Rows; 5349 5350 FOR_ALL_WINDOWS(wp) 5351 { 5352 ((int *)gap->ga_data)[gap->ga_len++] = 5353 wp->w_width + wp->w_vsep_width; 5354 ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height; 5355 } 5356 } 5357 } 5358 5359 /* 5360 * Restore window sizes, but only if the number of windows is still the same 5361 * and 'lines' didn't change. 5362 * Does not free the growarray. 5363 */ 5364 void 5365 win_size_restore(garray_T *gap) 5366 { 5367 win_T *wp; 5368 int i, j; 5369 5370 if (win_count() * 2 + 1 == gap->ga_len 5371 && ((int *)gap->ga_data)[0] == Rows) 5372 { 5373 // The order matters, because frames contain other frames, but it's 5374 // difficult to get right. The easy way out is to do it twice. 5375 for (j = 0; j < 2; ++j) 5376 { 5377 i = 1; 5378 FOR_ALL_WINDOWS(wp) 5379 { 5380 frame_setwidth(wp->w_frame, ((int *)gap->ga_data)[i++]); 5381 win_setheight_win(((int *)gap->ga_data)[i++], wp); 5382 } 5383 } 5384 // recompute the window positions 5385 (void)win_comp_pos(); 5386 } 5387 } 5388 #endif // FEAT_CMDWIN 5389 5390 /* 5391 * Update the position for all windows, using the width and height of the 5392 * frames. 5393 * Returns the row just after the last window. 5394 */ 5395 int 5396 win_comp_pos(void) 5397 { 5398 int row = tabline_height(); 5399 int col = 0; 5400 5401 frame_comp_pos(topframe, &row, &col); 5402 return row; 5403 } 5404 5405 /* 5406 * Update the position of the windows in frame "topfrp", using the width and 5407 * height of the frames. 5408 * "*row" and "*col" are the top-left position of the frame. They are updated 5409 * to the bottom-right position plus one. 5410 */ 5411 static void 5412 frame_comp_pos(frame_T *topfrp, int *row, int *col) 5413 { 5414 win_T *wp; 5415 frame_T *frp; 5416 int startcol; 5417 int startrow; 5418 int h; 5419 5420 wp = topfrp->fr_win; 5421 if (wp != NULL) 5422 { 5423 if (wp->w_winrow != *row || wp->w_wincol != *col) 5424 { 5425 // position changed, redraw 5426 wp->w_winrow = *row; 5427 wp->w_wincol = *col; 5428 redraw_win_later(wp, NOT_VALID); 5429 wp->w_redr_status = TRUE; 5430 } 5431 // WinBar will not show if the window height is zero 5432 h = VISIBLE_HEIGHT(wp) + wp->w_status_height; 5433 *row += h > topfrp->fr_height ? topfrp->fr_height : h; 5434 *col += wp->w_width + wp->w_vsep_width; 5435 } 5436 else 5437 { 5438 startrow = *row; 5439 startcol = *col; 5440 FOR_ALL_FRAMES(frp, topfrp->fr_child) 5441 { 5442 if (topfrp->fr_layout == FR_ROW) 5443 *row = startrow; // all frames are at the same row 5444 else 5445 *col = startcol; // all frames are at the same col 5446 frame_comp_pos(frp, row, col); 5447 } 5448 } 5449 } 5450 5451 /* 5452 * Set current window height and take care of repositioning other windows to 5453 * fit around it. 5454 */ 5455 void 5456 win_setheight(int height) 5457 { 5458 win_setheight_win(height, curwin); 5459 } 5460 5461 /* 5462 * Set the window height of window "win" and take care of repositioning other 5463 * windows to fit around it. 5464 */ 5465 void 5466 win_setheight_win(int height, win_T *win) 5467 { 5468 int row; 5469 5470 if (win == curwin) 5471 { 5472 // Always keep current window at least one line high, even when 5473 // 'winminheight' is zero. 5474 if (height < p_wmh) 5475 height = p_wmh; 5476 if (height == 0) 5477 height = 1; 5478 height += WINBAR_HEIGHT(curwin); 5479 } 5480 5481 frame_setheight(win->w_frame, height + win->w_status_height); 5482 5483 // recompute the window positions 5484 row = win_comp_pos(); 5485 5486 /* 5487 * If there is extra space created between the last window and the command 5488 * line, clear it. 5489 */ 5490 if (full_screen && msg_scrolled == 0 && row < cmdline_row) 5491 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5492 cmdline_row = row; 5493 msg_row = row; 5494 msg_col = 0; 5495 5496 redraw_all_later(NOT_VALID); 5497 } 5498 5499 /* 5500 * Set the height of a frame to "height" and take care that all frames and 5501 * windows inside it are resized. Also resize frames on the left and right if 5502 * the are in the same FR_ROW frame. 5503 * 5504 * Strategy: 5505 * If the frame is part of a FR_COL frame, try fitting the frame in that 5506 * frame. If that doesn't work (the FR_COL frame is too small), recursively 5507 * go to containing frames to resize them and make room. 5508 * If the frame is part of a FR_ROW frame, all frames must be resized as well. 5509 * Check for the minimal height of the FR_ROW frame. 5510 * At the top level we can also use change the command line height. 5511 */ 5512 static void 5513 frame_setheight(frame_T *curfrp, int height) 5514 { 5515 int room; // total number of lines available 5516 int take; // number of lines taken from other windows 5517 int room_cmdline; // lines available from cmdline 5518 int run; 5519 frame_T *frp; 5520 int h; 5521 int room_reserved; 5522 5523 // If the height already is the desired value, nothing to do. 5524 if (curfrp->fr_height == height) 5525 return; 5526 5527 if (curfrp->fr_parent == NULL) 5528 { 5529 // topframe: can only change the command line 5530 if (height > ROWS_AVAIL) 5531 height = ROWS_AVAIL; 5532 if (height > 0) 5533 frame_new_height(curfrp, height, FALSE, FALSE); 5534 } 5535 else if (curfrp->fr_parent->fr_layout == FR_ROW) 5536 { 5537 // Row of frames: Also need to resize frames left and right of this 5538 // one. First check for the minimal height of these. 5539 h = frame_minheight(curfrp->fr_parent, NULL); 5540 if (height < h) 5541 height = h; 5542 frame_setheight(curfrp->fr_parent, height); 5543 } 5544 else 5545 { 5546 /* 5547 * Column of frames: try to change only frames in this column. 5548 */ 5549 /* 5550 * Do this twice: 5551 * 1: compute room available, if it's not enough try resizing the 5552 * containing frame. 5553 * 2: compute the room available and adjust the height to it. 5554 * Try not to reduce the height of a window with 'winfixheight' set. 5555 */ 5556 for (run = 1; run <= 2; ++run) 5557 { 5558 room = 0; 5559 room_reserved = 0; 5560 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5561 { 5562 if (frp != curfrp 5563 && frp->fr_win != NULL 5564 && frp->fr_win->w_p_wfh) 5565 room_reserved += frp->fr_height; 5566 room += frp->fr_height; 5567 if (frp != curfrp) 5568 room -= frame_minheight(frp, NULL); 5569 } 5570 if (curfrp->fr_width != Columns) 5571 room_cmdline = 0; 5572 else 5573 { 5574 room_cmdline = Rows - p_ch - (lastwin->w_winrow 5575 + VISIBLE_HEIGHT(lastwin) 5576 + lastwin->w_status_height); 5577 if (room_cmdline < 0) 5578 room_cmdline = 0; 5579 } 5580 5581 if (height <= room + room_cmdline) 5582 break; 5583 if (run == 2 || curfrp->fr_width == Columns) 5584 { 5585 if (height > room + room_cmdline) 5586 height = room + room_cmdline; 5587 break; 5588 } 5589 frame_setheight(curfrp->fr_parent, height 5590 + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1); 5591 } 5592 5593 /* 5594 * Compute the number of lines we will take from others frames (can be 5595 * negative!). 5596 */ 5597 take = height - curfrp->fr_height; 5598 5599 // If there is not enough room, also reduce the height of a window 5600 // with 'winfixheight' set. 5601 if (height > room + room_cmdline - room_reserved) 5602 room_reserved = room + room_cmdline - height; 5603 // If there is only a 'winfixheight' window and making the 5604 // window smaller, need to make the other window taller. 5605 if (take < 0 && room - curfrp->fr_height < room_reserved) 5606 room_reserved = 0; 5607 5608 if (take > 0 && room_cmdline > 0) 5609 { 5610 // use lines from cmdline first 5611 if (take < room_cmdline) 5612 room_cmdline = take; 5613 take -= room_cmdline; 5614 topframe->fr_height += room_cmdline; 5615 } 5616 5617 /* 5618 * set the current frame to the new height 5619 */ 5620 frame_new_height(curfrp, height, FALSE, FALSE); 5621 5622 /* 5623 * First take lines from the frames after the current frame. If 5624 * that is not enough, takes lines from frames above the current 5625 * frame. 5626 */ 5627 for (run = 0; run < 2; ++run) 5628 { 5629 if (run == 0) 5630 frp = curfrp->fr_next; // 1st run: start with next window 5631 else 5632 frp = curfrp->fr_prev; // 2nd run: start with prev window 5633 while (frp != NULL && take != 0) 5634 { 5635 h = frame_minheight(frp, NULL); 5636 if (room_reserved > 0 5637 && frp->fr_win != NULL 5638 && frp->fr_win->w_p_wfh) 5639 { 5640 if (room_reserved >= frp->fr_height) 5641 room_reserved -= frp->fr_height; 5642 else 5643 { 5644 if (frp->fr_height - room_reserved > take) 5645 room_reserved = frp->fr_height - take; 5646 take -= frp->fr_height - room_reserved; 5647 frame_new_height(frp, room_reserved, FALSE, FALSE); 5648 room_reserved = 0; 5649 } 5650 } 5651 else 5652 { 5653 if (frp->fr_height - take < h) 5654 { 5655 take -= frp->fr_height - h; 5656 frame_new_height(frp, h, FALSE, FALSE); 5657 } 5658 else 5659 { 5660 frame_new_height(frp, frp->fr_height - take, 5661 FALSE, FALSE); 5662 take = 0; 5663 } 5664 } 5665 if (run == 0) 5666 frp = frp->fr_next; 5667 else 5668 frp = frp->fr_prev; 5669 } 5670 } 5671 } 5672 } 5673 5674 /* 5675 * Set current window width and take care of repositioning other windows to 5676 * fit around it. 5677 */ 5678 void 5679 win_setwidth(int width) 5680 { 5681 win_setwidth_win(width, curwin); 5682 } 5683 5684 void 5685 win_setwidth_win(int width, win_T *wp) 5686 { 5687 // Always keep current window at least one column wide, even when 5688 // 'winminwidth' is zero. 5689 if (wp == curwin) 5690 { 5691 if (width < p_wmw) 5692 width = p_wmw; 5693 if (width == 0) 5694 width = 1; 5695 } 5696 else if (width < 0) 5697 width = 0; 5698 5699 frame_setwidth(wp->w_frame, width + wp->w_vsep_width); 5700 5701 // recompute the window positions 5702 (void)win_comp_pos(); 5703 5704 redraw_all_later(NOT_VALID); 5705 } 5706 5707 /* 5708 * Set the width of a frame to "width" and take care that all frames and 5709 * windows inside it are resized. Also resize frames above and below if the 5710 * are in the same FR_ROW frame. 5711 * 5712 * Strategy is similar to frame_setheight(). 5713 */ 5714 static void 5715 frame_setwidth(frame_T *curfrp, int width) 5716 { 5717 int room; // total number of lines available 5718 int take; // number of lines taken from other windows 5719 int run; 5720 frame_T *frp; 5721 int w; 5722 int room_reserved; 5723 5724 // If the width already is the desired value, nothing to do. 5725 if (curfrp->fr_width == width) 5726 return; 5727 5728 if (curfrp->fr_parent == NULL) 5729 // topframe: can't change width 5730 return; 5731 5732 if (curfrp->fr_parent->fr_layout == FR_COL) 5733 { 5734 // Column of frames: Also need to resize frames above and below of 5735 // this one. First check for the minimal width of these. 5736 w = frame_minwidth(curfrp->fr_parent, NULL); 5737 if (width < w) 5738 width = w; 5739 frame_setwidth(curfrp->fr_parent, width); 5740 } 5741 else 5742 { 5743 /* 5744 * Row of frames: try to change only frames in this row. 5745 * 5746 * Do this twice: 5747 * 1: compute room available, if it's not enough try resizing the 5748 * containing frame. 5749 * 2: compute the room available and adjust the width to it. 5750 */ 5751 for (run = 1; run <= 2; ++run) 5752 { 5753 room = 0; 5754 room_reserved = 0; 5755 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5756 { 5757 if (frp != curfrp 5758 && frp->fr_win != NULL 5759 && frp->fr_win->w_p_wfw) 5760 room_reserved += frp->fr_width; 5761 room += frp->fr_width; 5762 if (frp != curfrp) 5763 room -= frame_minwidth(frp, NULL); 5764 } 5765 5766 if (width <= room) 5767 break; 5768 if (run == 2 || curfrp->fr_height >= ROWS_AVAIL) 5769 { 5770 if (width > room) 5771 width = room; 5772 break; 5773 } 5774 frame_setwidth(curfrp->fr_parent, width 5775 + frame_minwidth(curfrp->fr_parent, NOWIN) - (int)p_wmw - 1); 5776 } 5777 5778 /* 5779 * Compute the number of lines we will take from others frames (can be 5780 * negative!). 5781 */ 5782 take = width - curfrp->fr_width; 5783 5784 // If there is not enough room, also reduce the width of a window 5785 // with 'winfixwidth' set. 5786 if (width > room - room_reserved) 5787 room_reserved = room - width; 5788 // If there is only a 'winfixwidth' window and making the 5789 // window smaller, need to make the other window narrower. 5790 if (take < 0 && room - curfrp->fr_width < room_reserved) 5791 room_reserved = 0; 5792 5793 /* 5794 * set the current frame to the new width 5795 */ 5796 frame_new_width(curfrp, width, FALSE, FALSE); 5797 5798 /* 5799 * First take lines from the frames right of the current frame. If 5800 * that is not enough, takes lines from frames left of the current 5801 * frame. 5802 */ 5803 for (run = 0; run < 2; ++run) 5804 { 5805 if (run == 0) 5806 frp = curfrp->fr_next; // 1st run: start with next window 5807 else 5808 frp = curfrp->fr_prev; // 2nd run: start with prev window 5809 while (frp != NULL && take != 0) 5810 { 5811 w = frame_minwidth(frp, NULL); 5812 if (room_reserved > 0 5813 && frp->fr_win != NULL 5814 && frp->fr_win->w_p_wfw) 5815 { 5816 if (room_reserved >= frp->fr_width) 5817 room_reserved -= frp->fr_width; 5818 else 5819 { 5820 if (frp->fr_width - room_reserved > take) 5821 room_reserved = frp->fr_width - take; 5822 take -= frp->fr_width - room_reserved; 5823 frame_new_width(frp, room_reserved, FALSE, FALSE); 5824 room_reserved = 0; 5825 } 5826 } 5827 else 5828 { 5829 if (frp->fr_width - take < w) 5830 { 5831 take -= frp->fr_width - w; 5832 frame_new_width(frp, w, FALSE, FALSE); 5833 } 5834 else 5835 { 5836 frame_new_width(frp, frp->fr_width - take, 5837 FALSE, FALSE); 5838 take = 0; 5839 } 5840 } 5841 if (run == 0) 5842 frp = frp->fr_next; 5843 else 5844 frp = frp->fr_prev; 5845 } 5846 } 5847 } 5848 } 5849 5850 /* 5851 * Check 'winminheight' for a valid value and reduce it if needed. 5852 */ 5853 void 5854 win_setminheight(void) 5855 { 5856 int room; 5857 int needed; 5858 int first = TRUE; 5859 5860 // loop until there is a 'winminheight' that is possible 5861 while (p_wmh > 0) 5862 { 5863 room = Rows - p_ch; 5864 needed = min_rows() - 1; // 1 was added for the cmdline 5865 if (room >= needed) 5866 break; 5867 --p_wmh; 5868 if (first) 5869 { 5870 emsg(_(e_noroom)); 5871 first = FALSE; 5872 } 5873 } 5874 } 5875 5876 /* 5877 * Check 'winminwidth' for a valid value and reduce it if needed. 5878 */ 5879 void 5880 win_setminwidth(void) 5881 { 5882 int room; 5883 int needed; 5884 int first = TRUE; 5885 5886 // loop until there is a 'winminheight' that is possible 5887 while (p_wmw > 0) 5888 { 5889 room = Columns; 5890 needed = frame_minwidth(topframe, NULL); 5891 if (room >= needed) 5892 break; 5893 --p_wmw; 5894 if (first) 5895 { 5896 emsg(_(e_noroom)); 5897 first = FALSE; 5898 } 5899 } 5900 } 5901 5902 /* 5903 * Status line of dragwin is dragged "offset" lines down (negative is up). 5904 */ 5905 void 5906 win_drag_status_line(win_T *dragwin, int offset) 5907 { 5908 frame_T *curfr; 5909 frame_T *fr; 5910 int room; 5911 int row; 5912 int up; // if TRUE, drag status line up, otherwise down 5913 int n; 5914 5915 fr = dragwin->w_frame; 5916 curfr = fr; 5917 if (fr != topframe) // more than one window 5918 { 5919 fr = fr->fr_parent; 5920 // When the parent frame is not a column of frames, its parent should 5921 // be. 5922 if (fr->fr_layout != FR_COL) 5923 { 5924 curfr = fr; 5925 if (fr != topframe) // only a row of windows, may drag statusline 5926 fr = fr->fr_parent; 5927 } 5928 } 5929 5930 // If this is the last frame in a column, may want to resize the parent 5931 // frame instead (go two up to skip a row of frames). 5932 while (curfr != topframe && curfr->fr_next == NULL) 5933 { 5934 if (fr != topframe) 5935 fr = fr->fr_parent; 5936 curfr = fr; 5937 if (fr != topframe) 5938 fr = fr->fr_parent; 5939 } 5940 5941 if (offset < 0) // drag up 5942 { 5943 up = TRUE; 5944 offset = -offset; 5945 // sum up the room of the current frame and above it 5946 if (fr == curfr) 5947 { 5948 // only one window 5949 room = fr->fr_height - frame_minheight(fr, NULL); 5950 } 5951 else 5952 { 5953 room = 0; 5954 for (fr = fr->fr_child; ; fr = fr->fr_next) 5955 { 5956 room += fr->fr_height - frame_minheight(fr, NULL); 5957 if (fr == curfr) 5958 break; 5959 } 5960 } 5961 fr = curfr->fr_next; // put fr at frame that grows 5962 } 5963 else // drag down 5964 { 5965 up = FALSE; 5966 /* 5967 * Only dragging the last status line can reduce p_ch. 5968 */ 5969 room = Rows - cmdline_row; 5970 if (curfr->fr_next == NULL) 5971 room -= 1; 5972 else 5973 room -= p_ch; 5974 if (room < 0) 5975 room = 0; 5976 // sum up the room of frames below of the current one 5977 FOR_ALL_FRAMES(fr, curfr->fr_next) 5978 room += fr->fr_height - frame_minheight(fr, NULL); 5979 fr = curfr; // put fr at window that grows 5980 } 5981 5982 if (room < offset) // Not enough room 5983 offset = room; // Move as far as we can 5984 if (offset <= 0) 5985 return; 5986 5987 /* 5988 * Grow frame fr by "offset" lines. 5989 * Doesn't happen when dragging the last status line up. 5990 */ 5991 if (fr != NULL) 5992 frame_new_height(fr, fr->fr_height + offset, up, FALSE); 5993 5994 if (up) 5995 fr = curfr; // current frame gets smaller 5996 else 5997 fr = curfr->fr_next; // next frame gets smaller 5998 5999 /* 6000 * Now make the other frames smaller. 6001 */ 6002 while (fr != NULL && offset > 0) 6003 { 6004 n = frame_minheight(fr, NULL); 6005 if (fr->fr_height - offset <= n) 6006 { 6007 offset -= fr->fr_height - n; 6008 frame_new_height(fr, n, !up, FALSE); 6009 } 6010 else 6011 { 6012 frame_new_height(fr, fr->fr_height - offset, !up, FALSE); 6013 break; 6014 } 6015 if (up) 6016 fr = fr->fr_prev; 6017 else 6018 fr = fr->fr_next; 6019 } 6020 row = win_comp_pos(); 6021 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 6022 cmdline_row = row; 6023 p_ch = Rows - cmdline_row; 6024 if (p_ch < 1) 6025 p_ch = 1; 6026 curtab->tp_ch_used = p_ch; 6027 redraw_all_later(SOME_VALID); 6028 showmode(); 6029 } 6030 6031 /* 6032 * Separator line of dragwin is dragged "offset" lines right (negative is left). 6033 */ 6034 void 6035 win_drag_vsep_line(win_T *dragwin, int offset) 6036 { 6037 frame_T *curfr; 6038 frame_T *fr; 6039 int room; 6040 int left; // if TRUE, drag separator line left, otherwise right 6041 int n; 6042 6043 fr = dragwin->w_frame; 6044 if (fr == topframe) // only one window (cannot happen?) 6045 return; 6046 curfr = fr; 6047 fr = fr->fr_parent; 6048 // When the parent frame is not a row of frames, its parent should be. 6049 if (fr->fr_layout != FR_ROW) 6050 { 6051 if (fr == topframe) // only a column of windows (cannot happen?) 6052 return; 6053 curfr = fr; 6054 fr = fr->fr_parent; 6055 } 6056 6057 // If this is the last frame in a row, may want to resize a parent 6058 // frame instead. 6059 while (curfr->fr_next == NULL) 6060 { 6061 if (fr == topframe) 6062 break; 6063 curfr = fr; 6064 fr = fr->fr_parent; 6065 if (fr != topframe) 6066 { 6067 curfr = fr; 6068 fr = fr->fr_parent; 6069 } 6070 } 6071 6072 if (offset < 0) // drag left 6073 { 6074 left = TRUE; 6075 offset = -offset; 6076 // sum up the room of the current frame and left of it 6077 room = 0; 6078 for (fr = fr->fr_child; ; fr = fr->fr_next) 6079 { 6080 room += fr->fr_width - frame_minwidth(fr, NULL); 6081 if (fr == curfr) 6082 break; 6083 } 6084 fr = curfr->fr_next; // put fr at frame that grows 6085 } 6086 else // drag right 6087 { 6088 left = FALSE; 6089 // sum up the room of frames right of the current one 6090 room = 0; 6091 FOR_ALL_FRAMES(fr, curfr->fr_next) 6092 room += fr->fr_width - frame_minwidth(fr, NULL); 6093 fr = curfr; // put fr at window that grows 6094 } 6095 6096 if (room < offset) // Not enough room 6097 offset = room; // Move as far as we can 6098 if (offset <= 0) // No room at all, quit. 6099 return; 6100 if (fr == NULL) 6101 return; // Safety check, should not happen. 6102 6103 // grow frame fr by offset lines 6104 frame_new_width(fr, fr->fr_width + offset, left, FALSE); 6105 6106 // shrink other frames: current and at the left or at the right 6107 if (left) 6108 fr = curfr; // current frame gets smaller 6109 else 6110 fr = curfr->fr_next; // next frame gets smaller 6111 6112 while (fr != NULL && offset > 0) 6113 { 6114 n = frame_minwidth(fr, NULL); 6115 if (fr->fr_width - offset <= n) 6116 { 6117 offset -= fr->fr_width - n; 6118 frame_new_width(fr, n, !left, FALSE); 6119 } 6120 else 6121 { 6122 frame_new_width(fr, fr->fr_width - offset, !left, FALSE); 6123 break; 6124 } 6125 if (left) 6126 fr = fr->fr_prev; 6127 else 6128 fr = fr->fr_next; 6129 } 6130 (void)win_comp_pos(); 6131 redraw_all_later(NOT_VALID); 6132 } 6133 6134 #define FRACTION_MULT 16384L 6135 6136 /* 6137 * Set wp->w_fraction for the current w_wrow and w_height. 6138 * Has no effect when the window is less than two lines. 6139 */ 6140 void 6141 set_fraction(win_T *wp) 6142 { 6143 if (wp->w_height > 1) 6144 // When cursor is in the first line the percentage is computed as if 6145 // it's halfway that line. Thus with two lines it is 25%, with three 6146 // lines 17%, etc. Similarly for the last line: 75%, 83%, etc. 6147 wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT 6148 + FRACTION_MULT / 2) / (long)wp->w_height; 6149 } 6150 6151 /* 6152 * Set the height of a window. 6153 * "height" excludes any window toolbar. 6154 * This takes care of the things inside the window, not what happens to the 6155 * window position, the frame or to other windows. 6156 */ 6157 void 6158 win_new_height(win_T *wp, int height) 6159 { 6160 int prev_height = wp->w_height; 6161 6162 // Don't want a negative height. Happens when splitting a tiny window. 6163 // Will equalize heights soon to fix it. 6164 if (height < 0) 6165 height = 0; 6166 if (wp->w_height == height) 6167 return; // nothing to do 6168 6169 if (wp->w_height > 0) 6170 { 6171 if (wp == curwin) 6172 // w_wrow needs to be valid. When setting 'laststatus' this may 6173 // call win_new_height() recursively. 6174 validate_cursor(); 6175 if (wp->w_height != prev_height) 6176 return; // Recursive call already changed the size, bail out here 6177 // to avoid the following to mess things up. 6178 if (wp->w_wrow != wp->w_prev_fraction_row) 6179 set_fraction(wp); 6180 } 6181 6182 wp->w_height = height; 6183 wp->w_skipcol = 0; 6184 6185 // There is no point in adjusting the scroll position when exiting. Some 6186 // values might be invalid. 6187 if (!exiting) 6188 scroll_to_fraction(wp, prev_height); 6189 } 6190 6191 void 6192 scroll_to_fraction(win_T *wp, int prev_height) 6193 { 6194 linenr_T lnum; 6195 int sline, line_size; 6196 int height = wp->w_height; 6197 6198 // Don't change w_topline in any of these cases: 6199 // - window height is 0 6200 // - 'scrollbind' is set and this isn't the current window 6201 // - window height is sufficient to display the whole buffer and first line 6202 // is visible. 6203 if (height > 0 6204 && (!wp->w_p_scb || wp == curwin) 6205 && (height < wp->w_buffer->b_ml.ml_line_count || wp->w_topline > 1)) 6206 { 6207 /* 6208 * Find a value for w_topline that shows the cursor at the same 6209 * relative position in the window as before (more or less). 6210 */ 6211 lnum = wp->w_cursor.lnum; 6212 if (lnum < 1) // can happen when starting up 6213 lnum = 1; 6214 wp->w_wrow = ((long)wp->w_fraction * (long)height - 1L) 6215 / FRACTION_MULT; 6216 line_size = plines_win_col(wp, lnum, (long)(wp->w_cursor.col)) - 1; 6217 sline = wp->w_wrow - line_size; 6218 6219 if (sline >= 0) 6220 { 6221 // Make sure the whole cursor line is visible, if possible. 6222 int rows = plines_win(wp, lnum, FALSE); 6223 6224 if (sline > wp->w_height - rows) 6225 { 6226 sline = wp->w_height - rows; 6227 wp->w_wrow -= rows - line_size; 6228 } 6229 } 6230 6231 if (sline < 0) 6232 { 6233 /* 6234 * Cursor line would go off top of screen if w_wrow was this high. 6235 * Make cursor line the first line in the window. If not enough 6236 * room use w_skipcol; 6237 */ 6238 wp->w_wrow = line_size; 6239 if (wp->w_wrow >= wp->w_height 6240 && (wp->w_width - win_col_off(wp)) > 0) 6241 { 6242 wp->w_skipcol += wp->w_width - win_col_off(wp); 6243 --wp->w_wrow; 6244 while (wp->w_wrow >= wp->w_height) 6245 { 6246 wp->w_skipcol += wp->w_width - win_col_off(wp) 6247 + win_col_off2(wp); 6248 --wp->w_wrow; 6249 } 6250 } 6251 } 6252 else if (sline > 0) 6253 { 6254 while (sline > 0 && lnum > 1) 6255 { 6256 #ifdef FEAT_FOLDING 6257 hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); 6258 if (lnum == 1) 6259 { 6260 // first line in buffer is folded 6261 line_size = 1; 6262 --sline; 6263 break; 6264 } 6265 #endif 6266 --lnum; 6267 #ifdef FEAT_DIFF 6268 if (lnum == wp->w_topline) 6269 line_size = plines_win_nofill(wp, lnum, TRUE) 6270 + wp->w_topfill; 6271 else 6272 #endif 6273 line_size = plines_win(wp, lnum, TRUE); 6274 sline -= line_size; 6275 } 6276 6277 if (sline < 0) 6278 { 6279 /* 6280 * Line we want at top would go off top of screen. Use next 6281 * line instead. 6282 */ 6283 #ifdef FEAT_FOLDING 6284 hasFoldingWin(wp, lnum, NULL, &lnum, TRUE, NULL); 6285 #endif 6286 lnum++; 6287 wp->w_wrow -= line_size + sline; 6288 } 6289 else if (sline > 0) 6290 { 6291 // First line of file reached, use that as topline. 6292 lnum = 1; 6293 wp->w_wrow -= sline; 6294 } 6295 } 6296 set_topline(wp, lnum); 6297 } 6298 6299 if (wp == curwin) 6300 { 6301 if (get_scrolloff_value()) 6302 update_topline(); 6303 curs_columns(FALSE); // validate w_wrow 6304 } 6305 if (prev_height > 0) 6306 wp->w_prev_fraction_row = wp->w_wrow; 6307 6308 win_comp_scroll(wp); 6309 redraw_win_later(wp, SOME_VALID); 6310 wp->w_redr_status = TRUE; 6311 invalidate_botline_win(wp); 6312 } 6313 6314 /* 6315 * Set the width of a window. 6316 */ 6317 void 6318 win_new_width(win_T *wp, int width) 6319 { 6320 wp->w_width = width; 6321 wp->w_lines_valid = 0; 6322 changed_line_abv_curs_win(wp); 6323 invalidate_botline_win(wp); 6324 if (wp == curwin) 6325 { 6326 update_topline(); 6327 curs_columns(TRUE); // validate w_wrow 6328 } 6329 redraw_win_later(wp, NOT_VALID); 6330 wp->w_redr_status = TRUE; 6331 } 6332 6333 void 6334 win_comp_scroll(win_T *wp) 6335 { 6336 #if defined(FEAT_EVAL) 6337 int old_w_p_scr = wp->w_p_scr; 6338 #endif 6339 6340 wp->w_p_scr = ((unsigned)wp->w_height >> 1); 6341 if (wp->w_p_scr == 0) 6342 wp->w_p_scr = 1; 6343 #if defined(FEAT_EVAL) 6344 if (wp->w_p_scr != old_w_p_scr) 6345 { 6346 // Used by "verbose set scroll". 6347 wp->w_p_script_ctx[WV_SCROLL].sc_sid = SID_WINLAYOUT; 6348 wp->w_p_script_ctx[WV_SCROLL].sc_lnum = 0; 6349 } 6350 #endif 6351 } 6352 6353 /* 6354 * command_height: called whenever p_ch has been changed 6355 */ 6356 void 6357 command_height(void) 6358 { 6359 int h; 6360 frame_T *frp; 6361 int old_p_ch = curtab->tp_ch_used; 6362 6363 // Use the value of p_ch that we remembered. This is needed for when the 6364 // GUI starts up, we can't be sure in what order things happen. And when 6365 // p_ch was changed in another tab page. 6366 curtab->tp_ch_used = p_ch; 6367 6368 // Find bottom frame with width of screen. 6369 frp = lastwin->w_frame; 6370 while (frp->fr_width != Columns && frp->fr_parent != NULL) 6371 frp = frp->fr_parent; 6372 6373 // Avoid changing the height of a window with 'winfixheight' set. 6374 while (frp->fr_prev != NULL && frp->fr_layout == FR_LEAF 6375 && frp->fr_win->w_p_wfh) 6376 frp = frp->fr_prev; 6377 6378 if (starting != NO_SCREEN) 6379 { 6380 cmdline_row = Rows - p_ch; 6381 6382 if (p_ch > old_p_ch) // p_ch got bigger 6383 { 6384 while (p_ch > old_p_ch) 6385 { 6386 if (frp == NULL) 6387 { 6388 emsg(_(e_noroom)); 6389 p_ch = old_p_ch; 6390 curtab->tp_ch_used = p_ch; 6391 cmdline_row = Rows - p_ch; 6392 break; 6393 } 6394 h = frp->fr_height - frame_minheight(frp, NULL); 6395 if (h > p_ch - old_p_ch) 6396 h = p_ch - old_p_ch; 6397 old_p_ch += h; 6398 frame_add_height(frp, -h); 6399 frp = frp->fr_prev; 6400 } 6401 6402 // Recompute window positions. 6403 (void)win_comp_pos(); 6404 6405 // clear the lines added to cmdline 6406 if (full_screen) 6407 screen_fill((int)(cmdline_row), (int)Rows, 0, 6408 (int)Columns, ' ', ' ', 0); 6409 msg_row = cmdline_row; 6410 redraw_cmdline = TRUE; 6411 return; 6412 } 6413 6414 if (msg_row < cmdline_row) 6415 msg_row = cmdline_row; 6416 redraw_cmdline = TRUE; 6417 } 6418 frame_add_height(frp, (int)(old_p_ch - p_ch)); 6419 6420 // Recompute window positions. 6421 if (frp != lastwin->w_frame) 6422 (void)win_comp_pos(); 6423 } 6424 6425 /* 6426 * Resize frame "frp" to be "n" lines higher (negative for less high). 6427 * Also resize the frames it is contained in. 6428 */ 6429 static void 6430 frame_add_height(frame_T *frp, int n) 6431 { 6432 frame_new_height(frp, frp->fr_height + n, FALSE, FALSE); 6433 for (;;) 6434 { 6435 frp = frp->fr_parent; 6436 if (frp == NULL) 6437 break; 6438 frp->fr_height += n; 6439 } 6440 } 6441 6442 /* 6443 * Add or remove a status line for the bottom window(s), according to the 6444 * value of 'laststatus'. 6445 */ 6446 void 6447 last_status( 6448 int morewin) // pretend there are two or more windows 6449 { 6450 // Don't make a difference between horizontal or vertical split. 6451 last_status_rec(topframe, (p_ls == 2 6452 || (p_ls == 1 && (morewin || !ONE_WINDOW)))); 6453 } 6454 6455 static void 6456 last_status_rec(frame_T *fr, int statusline) 6457 { 6458 frame_T *fp; 6459 win_T *wp; 6460 6461 if (fr->fr_layout == FR_LEAF) 6462 { 6463 wp = fr->fr_win; 6464 if (wp->w_status_height != 0 && !statusline) 6465 { 6466 // remove status line 6467 win_new_height(wp, wp->w_height + 1); 6468 wp->w_status_height = 0; 6469 comp_col(); 6470 } 6471 else if (wp->w_status_height == 0 && statusline) 6472 { 6473 // Find a frame to take a line from. 6474 fp = fr; 6475 while (fp->fr_height <= frame_minheight(fp, NULL)) 6476 { 6477 if (fp == topframe) 6478 { 6479 emsg(_(e_noroom)); 6480 return; 6481 } 6482 // In a column of frames: go to frame above. If already at 6483 // the top or in a row of frames: go to parent. 6484 if (fp->fr_parent->fr_layout == FR_COL && fp->fr_prev != NULL) 6485 fp = fp->fr_prev; 6486 else 6487 fp = fp->fr_parent; 6488 } 6489 wp->w_status_height = 1; 6490 if (fp != fr) 6491 { 6492 frame_new_height(fp, fp->fr_height - 1, FALSE, FALSE); 6493 frame_fix_height(wp); 6494 (void)win_comp_pos(); 6495 } 6496 else 6497 win_new_height(wp, wp->w_height - 1); 6498 comp_col(); 6499 redraw_all_later(SOME_VALID); 6500 } 6501 } 6502 else if (fr->fr_layout == FR_ROW) 6503 { 6504 // vertically split windows, set status line for each one 6505 FOR_ALL_FRAMES(fp, fr->fr_child) 6506 last_status_rec(fp, statusline); 6507 } 6508 else 6509 { 6510 // horizontally split window, set status line for last one 6511 for (fp = fr->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 6512 ; 6513 last_status_rec(fp, statusline); 6514 } 6515 } 6516 6517 /* 6518 * Return the number of lines used by the tab page line. 6519 */ 6520 int 6521 tabline_height(void) 6522 { 6523 #ifdef FEAT_GUI_TABLINE 6524 // When the GUI has the tabline then this always returns zero. 6525 if (gui_use_tabline()) 6526 return 0; 6527 #endif 6528 switch (p_stal) 6529 { 6530 case 0: return 0; 6531 case 1: return (first_tabpage->tp_next == NULL) ? 0 : 1; 6532 } 6533 return 1; 6534 } 6535 6536 /* 6537 * Return the minimal number of rows that is needed on the screen to display 6538 * the current number of windows. 6539 */ 6540 int 6541 min_rows(void) 6542 { 6543 int total; 6544 tabpage_T *tp; 6545 int n; 6546 6547 if (firstwin == NULL) // not initialized yet 6548 return MIN_LINES; 6549 6550 total = 0; 6551 FOR_ALL_TABPAGES(tp) 6552 { 6553 n = frame_minheight(tp->tp_topframe, NULL); 6554 if (total < n) 6555 total = n; 6556 } 6557 total += tabline_height(); 6558 total += 1; // count the room for the command line 6559 return total; 6560 } 6561 6562 /* 6563 * Return TRUE if there is only one window and only one tab page, not 6564 * counting a help or preview window, unless it is the current window. 6565 * Does not count unlisted windows. 6566 */ 6567 int 6568 only_one_window(void) 6569 { 6570 int count = 0; 6571 win_T *wp; 6572 6573 #if defined(FEAT_PROP_POPUP) 6574 // If the current window is a popup then there always is another window. 6575 if (popup_is_popup(curwin)) 6576 return FALSE; 6577 #endif 6578 6579 // If there is another tab page there always is another window. 6580 if (first_tabpage->tp_next != NULL) 6581 return FALSE; 6582 6583 FOR_ALL_WINDOWS(wp) 6584 if (wp->w_buffer != NULL 6585 && (!((bt_help(wp->w_buffer) && !bt_help(curbuf)) 6586 # ifdef FEAT_QUICKFIX 6587 || wp->w_p_pvw 6588 # endif 6589 ) || wp == curwin) && wp != aucmd_win) 6590 ++count; 6591 return (count <= 1); 6592 } 6593 6594 /* 6595 * Correct the cursor line number in other windows. Used after changing the 6596 * current buffer, and before applying autocommands. 6597 * When "do_curwin" is TRUE, also check current window. 6598 */ 6599 void 6600 check_lnums(int do_curwin) 6601 { 6602 win_T *wp; 6603 tabpage_T *tp; 6604 6605 FOR_ALL_TAB_WINDOWS(tp, wp) 6606 if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) 6607 { 6608 // save the original cursor position and topline 6609 wp->w_save_cursor.w_cursor_save = wp->w_cursor; 6610 wp->w_save_cursor.w_topline_save = wp->w_topline; 6611 6612 if (wp->w_cursor.lnum > curbuf->b_ml.ml_line_count) 6613 wp->w_cursor.lnum = curbuf->b_ml.ml_line_count; 6614 if (wp->w_topline > curbuf->b_ml.ml_line_count) 6615 wp->w_topline = curbuf->b_ml.ml_line_count; 6616 6617 // save the corrected cursor position and topline 6618 wp->w_save_cursor.w_cursor_corr = wp->w_cursor; 6619 wp->w_save_cursor.w_topline_corr = wp->w_topline; 6620 } 6621 } 6622 6623 /* 6624 * Reset cursor and topline to its stored values from check_lnums(). 6625 * check_lnums() must have been called first! 6626 */ 6627 void 6628 reset_lnums() 6629 { 6630 win_T *wp; 6631 tabpage_T *tp; 6632 6633 FOR_ALL_TAB_WINDOWS(tp, wp) 6634 if (wp->w_buffer == curbuf) 6635 { 6636 // Restore the value if the autocommand didn't change it. 6637 if (EQUAL_POS(wp->w_save_cursor.w_cursor_corr, wp->w_cursor)) 6638 wp->w_cursor = wp->w_save_cursor.w_cursor_save; 6639 if (wp->w_save_cursor.w_topline_corr == wp->w_topline) 6640 wp->w_topline = wp->w_save_cursor.w_topline_save; 6641 } 6642 } 6643 6644 /* 6645 * A snapshot of the window sizes, to restore them after closing the help 6646 * window. 6647 * Only these fields are used: 6648 * fr_layout 6649 * fr_width 6650 * fr_height 6651 * fr_next 6652 * fr_child 6653 * fr_win (only valid for the old curwin, NULL otherwise) 6654 */ 6655 6656 /* 6657 * Create a snapshot of the current frame sizes. 6658 */ 6659 void 6660 make_snapshot(int idx) 6661 { 6662 clear_snapshot(curtab, idx); 6663 make_snapshot_rec(topframe, &curtab->tp_snapshot[idx]); 6664 } 6665 6666 static void 6667 make_snapshot_rec(frame_T *fr, frame_T **frp) 6668 { 6669 *frp = ALLOC_CLEAR_ONE(frame_T); 6670 if (*frp == NULL) 6671 return; 6672 (*frp)->fr_layout = fr->fr_layout; 6673 (*frp)->fr_width = fr->fr_width; 6674 (*frp)->fr_height = fr->fr_height; 6675 if (fr->fr_next != NULL) 6676 make_snapshot_rec(fr->fr_next, &((*frp)->fr_next)); 6677 if (fr->fr_child != NULL) 6678 make_snapshot_rec(fr->fr_child, &((*frp)->fr_child)); 6679 if (fr->fr_layout == FR_LEAF && fr->fr_win == curwin) 6680 (*frp)->fr_win = curwin; 6681 } 6682 6683 /* 6684 * Remove any existing snapshot. 6685 */ 6686 static void 6687 clear_snapshot(tabpage_T *tp, int idx) 6688 { 6689 clear_snapshot_rec(tp->tp_snapshot[idx]); 6690 tp->tp_snapshot[idx] = NULL; 6691 } 6692 6693 static void 6694 clear_snapshot_rec(frame_T *fr) 6695 { 6696 if (fr != NULL) 6697 { 6698 clear_snapshot_rec(fr->fr_next); 6699 clear_snapshot_rec(fr->fr_child); 6700 vim_free(fr); 6701 } 6702 } 6703 6704 /* 6705 * Restore a previously created snapshot, if there is any. 6706 * This is only done if the screen size didn't change and the window layout is 6707 * still the same. 6708 */ 6709 void 6710 restore_snapshot( 6711 int idx, 6712 int close_curwin) // closing current window 6713 { 6714 win_T *wp; 6715 6716 if (curtab->tp_snapshot[idx] != NULL 6717 && curtab->tp_snapshot[idx]->fr_width == topframe->fr_width 6718 && curtab->tp_snapshot[idx]->fr_height == topframe->fr_height 6719 && check_snapshot_rec(curtab->tp_snapshot[idx], topframe) == OK) 6720 { 6721 wp = restore_snapshot_rec(curtab->tp_snapshot[idx], topframe); 6722 win_comp_pos(); 6723 if (wp != NULL && close_curwin) 6724 win_goto(wp); 6725 redraw_all_later(NOT_VALID); 6726 } 6727 clear_snapshot(curtab, idx); 6728 } 6729 6730 /* 6731 * Check if frames "sn" and "fr" have the same layout, same following frames 6732 * and same children. And the window pointer is valid. 6733 */ 6734 static int 6735 check_snapshot_rec(frame_T *sn, frame_T *fr) 6736 { 6737 if (sn->fr_layout != fr->fr_layout 6738 || (sn->fr_next == NULL) != (fr->fr_next == NULL) 6739 || (sn->fr_child == NULL) != (fr->fr_child == NULL) 6740 || (sn->fr_next != NULL 6741 && check_snapshot_rec(sn->fr_next, fr->fr_next) == FAIL) 6742 || (sn->fr_child != NULL 6743 && check_snapshot_rec(sn->fr_child, fr->fr_child) == FAIL) 6744 || (sn->fr_win != NULL && !win_valid(sn->fr_win))) 6745 return FAIL; 6746 return OK; 6747 } 6748 6749 /* 6750 * Copy the size of snapshot frame "sn" to frame "fr". Do the same for all 6751 * following frames and children. 6752 * Returns a pointer to the old current window, or NULL. 6753 */ 6754 static win_T * 6755 restore_snapshot_rec(frame_T *sn, frame_T *fr) 6756 { 6757 win_T *wp = NULL; 6758 win_T *wp2; 6759 6760 fr->fr_height = sn->fr_height; 6761 fr->fr_width = sn->fr_width; 6762 if (fr->fr_layout == FR_LEAF) 6763 { 6764 frame_new_height(fr, fr->fr_height, FALSE, FALSE); 6765 frame_new_width(fr, fr->fr_width, FALSE, FALSE); 6766 wp = sn->fr_win; 6767 } 6768 if (sn->fr_next != NULL) 6769 { 6770 wp2 = restore_snapshot_rec(sn->fr_next, fr->fr_next); 6771 if (wp2 != NULL) 6772 wp = wp2; 6773 } 6774 if (sn->fr_child != NULL) 6775 { 6776 wp2 = restore_snapshot_rec(sn->fr_child, fr->fr_child); 6777 if (wp2 != NULL) 6778 wp = wp2; 6779 } 6780 return wp; 6781 } 6782 6783 #if defined(FEAT_GUI) || defined(PROTO) 6784 /* 6785 * Return TRUE if there is any vertically split window. 6786 */ 6787 int 6788 win_hasvertsplit(void) 6789 { 6790 frame_T *fr; 6791 6792 if (topframe->fr_layout == FR_ROW) 6793 return TRUE; 6794 6795 if (topframe->fr_layout == FR_COL) 6796 FOR_ALL_FRAMES(fr, topframe->fr_child) 6797 if (fr->fr_layout == FR_ROW) 6798 return TRUE; 6799 6800 return FALSE; 6801 } 6802 #endif 6803 6804 #if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO) 6805 int 6806 get_win_number(win_T *wp, win_T *first_win) 6807 { 6808 int i = 1; 6809 win_T *w; 6810 6811 for (w = first_win; w != NULL && w != wp; w = W_NEXT(w)) 6812 ++i; 6813 6814 if (w == NULL) 6815 return 0; 6816 else 6817 return i; 6818 } 6819 6820 int 6821 get_tab_number(tabpage_T *tp UNUSED) 6822 { 6823 int i = 1; 6824 tabpage_T *t; 6825 6826 for (t = first_tabpage; t != NULL && t != tp; t = t->tp_next) 6827 ++i; 6828 6829 if (t == NULL) 6830 return 0; 6831 else 6832 return i; 6833 } 6834 #endif 6835 6836 /* 6837 * Return TRUE if "topfrp" and its children are at the right height. 6838 */ 6839 static int 6840 frame_check_height(frame_T *topfrp, int height) 6841 { 6842 frame_T *frp; 6843 6844 if (topfrp->fr_height != height) 6845 return FALSE; 6846 6847 if (topfrp->fr_layout == FR_ROW) 6848 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6849 if (frp->fr_height != height) 6850 return FALSE; 6851 6852 return TRUE; 6853 } 6854 6855 /* 6856 * Return TRUE if "topfrp" and its children are at the right width. 6857 */ 6858 static int 6859 frame_check_width(frame_T *topfrp, int width) 6860 { 6861 frame_T *frp; 6862 6863 if (topfrp->fr_width != width) 6864 return FALSE; 6865 6866 if (topfrp->fr_layout == FR_COL) 6867 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6868 if (frp->fr_width != width) 6869 return FALSE; 6870 6871 return TRUE; 6872 } 6873 6874 #if defined(FEAT_SYN_HL) || defined(PROTO) 6875 /* 6876 * Simple int comparison function for use with qsort() 6877 */ 6878 static int 6879 int_cmp(const void *a, const void *b) 6880 { 6881 return *(const int *)a - *(const int *)b; 6882 } 6883 6884 /* 6885 * Handle setting 'colorcolumn' or 'textwidth' in window "wp". 6886 * Returns error message, NULL if it's OK. 6887 */ 6888 char * 6889 check_colorcolumn(win_T *wp) 6890 { 6891 char_u *s; 6892 int col; 6893 int count = 0; 6894 int color_cols[256]; 6895 int i; 6896 int j = 0; 6897 6898 if (wp->w_buffer == NULL) 6899 return NULL; // buffer was closed 6900 6901 for (s = wp->w_p_cc; *s != NUL && count < 255;) 6902 { 6903 if (*s == '-' || *s == '+') 6904 { 6905 // -N and +N: add to 'textwidth' 6906 col = (*s == '-') ? -1 : 1; 6907 ++s; 6908 if (!VIM_ISDIGIT(*s)) 6909 return e_invarg; 6910 col = col * getdigits(&s); 6911 if (wp->w_buffer->b_p_tw == 0) 6912 goto skip; // 'textwidth' not set, skip this item 6913 col += wp->w_buffer->b_p_tw; 6914 if (col < 0) 6915 goto skip; 6916 } 6917 else if (VIM_ISDIGIT(*s)) 6918 col = getdigits(&s); 6919 else 6920 return e_invarg; 6921 color_cols[count++] = col - 1; // 1-based to 0-based 6922 skip: 6923 if (*s == NUL) 6924 break; 6925 if (*s != ',') 6926 return e_invarg; 6927 if (*++s == NUL) 6928 return e_invarg; // illegal trailing comma as in "set cc=80," 6929 } 6930 6931 vim_free(wp->w_p_cc_cols); 6932 if (count == 0) 6933 wp->w_p_cc_cols = NULL; 6934 else 6935 { 6936 wp->w_p_cc_cols = ALLOC_MULT(int, count + 1); 6937 if (wp->w_p_cc_cols != NULL) 6938 { 6939 // sort the columns for faster usage on screen redraw inside 6940 // win_line() 6941 qsort(color_cols, count, sizeof(int), int_cmp); 6942 6943 for (i = 0; i < count; ++i) 6944 // skip duplicates 6945 if (j == 0 || wp->w_p_cc_cols[j - 1] != color_cols[i]) 6946 wp->w_p_cc_cols[j++] = color_cols[i]; 6947 wp->w_p_cc_cols[j] = -1; // end marker 6948 } 6949 } 6950 6951 return NULL; // no error 6952 } 6953 #endif 6954