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 int win_enter_ext(win_T *wp, int flags); 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 // flags for win_enter_ext() 71 #define WEE_UNDO_SYNC 0x01 72 #define WEE_CURWIN_INVALID 0x02 73 #define WEE_TRIGGER_NEW_AUTOCMDS 0x04 74 #define WEE_TRIGGER_ENTER_AUTOCMDS 0x08 75 #define WEE_TRIGGER_LEAVE_AUTOCMDS 0x10 76 #define WEE_ALLOW_PARSE_MESSAGES 0x20 77 78 static char *m_onlyone = N_("Already only one window"); 79 80 // When non-zero splitting a window is forbidden. Used to avoid that nasty 81 // autocommands mess up the window structure. 82 static int split_disallowed = 0; 83 84 // #define WIN_DEBUG 85 #ifdef WIN_DEBUG 86 /* 87 * Call this method to log the current window layout. 88 */ 89 static void 90 log_frame_layout(frame_T *frame) 91 { 92 ch_log(NULL, "layout %s, wi: %d, he: %d, wwi: %d, whe: %d, id: %d", 93 frame->fr_layout == FR_LEAF ? "LEAF" 94 : frame->fr_layout == FR_ROW ? "ROW" : "COL", 95 frame->fr_width, 96 frame->fr_height, 97 frame->fr_win == NULL ? -1 : frame->fr_win->w_width, 98 frame->fr_win == NULL ? -1 : frame->fr_win->w_height, 99 frame->fr_win == NULL ? -1 : frame->fr_win->w_id); 100 if (frame->fr_child != NULL) 101 { 102 ch_log(NULL, "children"); 103 log_frame_layout(frame->fr_child); 104 if (frame->fr_next != NULL) 105 ch_log(NULL, "END of children"); 106 } 107 if (frame->fr_next != NULL) 108 log_frame_layout(frame->fr_next); 109 } 110 #endif 111 112 /* 113 * All CTRL-W window commands are handled here, called from normal_cmd(). 114 */ 115 void 116 do_window( 117 int nchar, 118 long Prenum, 119 int xchar) // extra char from ":wincmd gx" or NUL 120 { 121 long Prenum1; 122 win_T *wp; 123 #if defined(FEAT_SEARCHPATH) || defined(FEAT_FIND_ID) 124 char_u *ptr; 125 linenr_T lnum = -1; 126 #endif 127 #ifdef FEAT_FIND_ID 128 int type = FIND_DEFINE; 129 int len; 130 #endif 131 char_u cbuf[40]; 132 133 if (ERROR_IF_ANY_POPUP_WINDOW) 134 return; 135 136 #ifdef FEAT_CMDWIN 137 # define CHECK_CMDWIN \ 138 do { \ 139 if (cmdwin_type != 0) \ 140 { \ 141 emsg(_(e_invalid_in_cmdline_window)); \ 142 return; \ 143 } \ 144 } while (0) 145 #else 146 # define CHECK_CMDWIN do { /**/ } while (0) 147 #endif 148 149 Prenum1 = Prenum == 0 ? 1 : Prenum; 150 151 switch (nchar) 152 { 153 // split current window in two parts, horizontally 154 case 'S': 155 case Ctrl_S: 156 case 's': 157 CHECK_CMDWIN; 158 reset_VIsual_and_resel(); // stop Visual mode 159 #ifdef FEAT_QUICKFIX 160 // When splitting the quickfix window open a new buffer in it, 161 // don't replicate the quickfix buffer. 162 if (bt_quickfix(curbuf)) 163 goto newwindow; 164 #endif 165 #ifdef FEAT_GUI 166 need_mouse_correct = TRUE; 167 #endif 168 (void)win_split((int)Prenum, 0); 169 break; 170 171 // split current window in two parts, vertically 172 case Ctrl_V: 173 case 'v': 174 CHECK_CMDWIN; 175 reset_VIsual_and_resel(); // stop Visual mode 176 #ifdef FEAT_QUICKFIX 177 // When splitting the quickfix window open a new buffer in it, 178 // don't replicate the quickfix buffer. 179 if (bt_quickfix(curbuf)) 180 goto newwindow; 181 #endif 182 #ifdef FEAT_GUI 183 need_mouse_correct = TRUE; 184 #endif 185 (void)win_split((int)Prenum, WSP_VERT); 186 break; 187 188 // split current window and edit alternate file 189 case Ctrl_HAT: 190 case '^': 191 CHECK_CMDWIN; 192 reset_VIsual_and_resel(); // stop Visual mode 193 194 if (buflist_findnr(Prenum == 0 195 ? curwin->w_alt_fnum : Prenum) == NULL) 196 { 197 if (Prenum == 0) 198 emsg(_(e_no_alternate_file)); 199 else 200 semsg(_("E92: Buffer %ld not found"), Prenum); 201 break; 202 } 203 204 if (!curbuf_locked() && win_split(0, 0) == OK) 205 (void)buflist_getfile( 206 Prenum == 0 ? curwin->w_alt_fnum : Prenum, 207 (linenr_T)0, GETF_ALT, FALSE); 208 break; 209 210 // open new window 211 case Ctrl_N: 212 case 'n': 213 CHECK_CMDWIN; 214 reset_VIsual_and_resel(); // stop Visual mode 215 #ifdef FEAT_QUICKFIX 216 newwindow: 217 #endif 218 if (Prenum) 219 // window height 220 vim_snprintf((char *)cbuf, sizeof(cbuf) - 5, "%ld", Prenum); 221 else 222 cbuf[0] = NUL; 223 #if defined(FEAT_QUICKFIX) 224 if (nchar == 'v' || nchar == Ctrl_V) 225 STRCAT(cbuf, "v"); 226 #endif 227 STRCAT(cbuf, "new"); 228 do_cmdline_cmd(cbuf); 229 break; 230 231 // quit current window 232 case Ctrl_Q: 233 case 'q': 234 reset_VIsual_and_resel(); // stop Visual mode 235 cmd_with_count("quit", cbuf, sizeof(cbuf), Prenum); 236 do_cmdline_cmd(cbuf); 237 break; 238 239 // close current window 240 case Ctrl_C: 241 case 'c': 242 reset_VIsual_and_resel(); // stop Visual mode 243 cmd_with_count("close", cbuf, sizeof(cbuf), Prenum); 244 do_cmdline_cmd(cbuf); 245 break; 246 247 #if defined(FEAT_QUICKFIX) 248 // close preview window 249 case Ctrl_Z: 250 case 'z': 251 CHECK_CMDWIN; 252 reset_VIsual_and_resel(); // stop Visual mode 253 do_cmdline_cmd((char_u *)"pclose"); 254 break; 255 256 // cursor to preview window 257 case 'P': 258 FOR_ALL_WINDOWS(wp) 259 if (wp->w_p_pvw) 260 break; 261 if (wp == NULL) 262 emsg(_("E441: There is no preview window")); 263 else 264 win_goto(wp); 265 break; 266 #endif 267 268 // close all but current window 269 case Ctrl_O: 270 case 'o': 271 CHECK_CMDWIN; 272 reset_VIsual_and_resel(); // stop Visual mode 273 cmd_with_count("only", cbuf, sizeof(cbuf), Prenum); 274 do_cmdline_cmd(cbuf); 275 break; 276 277 // cursor to next window with wrap around 278 case Ctrl_W: 279 case 'w': 280 // cursor to previous window with wrap around 281 case 'W': 282 CHECK_CMDWIN; 283 if (ONE_WINDOW && Prenum != 1) // just one window 284 beep_flush(); 285 else 286 { 287 if (Prenum) // go to specified window 288 { 289 for (wp = firstwin; --Prenum > 0; ) 290 { 291 if (wp->w_next == NULL) 292 break; 293 else 294 wp = wp->w_next; 295 } 296 } 297 else 298 { 299 if (nchar == 'W') // go to previous window 300 { 301 wp = curwin->w_prev; 302 if (wp == NULL) 303 wp = lastwin; // wrap around 304 } 305 else // go to next window 306 { 307 wp = curwin->w_next; 308 if (wp == NULL) 309 wp = firstwin; // wrap around 310 } 311 } 312 win_goto(wp); 313 } 314 break; 315 316 // cursor to window below 317 case 'j': 318 case K_DOWN: 319 case Ctrl_J: 320 CHECK_CMDWIN; 321 win_goto_ver(FALSE, Prenum1); 322 break; 323 324 // cursor to window above 325 case 'k': 326 case K_UP: 327 case Ctrl_K: 328 CHECK_CMDWIN; 329 win_goto_ver(TRUE, Prenum1); 330 break; 331 332 // cursor to left window 333 case 'h': 334 case K_LEFT: 335 case Ctrl_H: 336 case K_BS: 337 CHECK_CMDWIN; 338 win_goto_hor(TRUE, Prenum1); 339 break; 340 341 // cursor to right window 342 case 'l': 343 case K_RIGHT: 344 case Ctrl_L: 345 CHECK_CMDWIN; 346 win_goto_hor(FALSE, Prenum1); 347 break; 348 349 // move window to new tab page 350 case 'T': 351 CHECK_CMDWIN; 352 if (one_window()) 353 msg(_(m_onlyone)); 354 else 355 { 356 tabpage_T *oldtab = curtab; 357 tabpage_T *newtab; 358 359 // First create a new tab with the window, then go back to 360 // the old tab and close the window there. 361 wp = curwin; 362 if (win_new_tabpage((int)Prenum) == OK 363 && valid_tabpage(oldtab)) 364 { 365 newtab = curtab; 366 goto_tabpage_tp(oldtab, TRUE, TRUE); 367 if (curwin == wp) 368 win_close(curwin, FALSE); 369 if (valid_tabpage(newtab)) 370 goto_tabpage_tp(newtab, TRUE, TRUE); 371 } 372 } 373 break; 374 375 // cursor to top-left window 376 case 't': 377 case Ctrl_T: 378 win_goto(firstwin); 379 break; 380 381 // cursor to bottom-right window 382 case 'b': 383 case Ctrl_B: 384 win_goto(lastwin); 385 break; 386 387 // cursor to last accessed (previous) window 388 case 'p': 389 case Ctrl_P: 390 if (!win_valid(prevwin)) 391 beep_flush(); 392 else 393 win_goto(prevwin); 394 break; 395 396 // exchange current and next window 397 case 'x': 398 case Ctrl_X: 399 CHECK_CMDWIN; 400 win_exchange(Prenum); 401 break; 402 403 // rotate windows downwards 404 case Ctrl_R: 405 case 'r': 406 CHECK_CMDWIN; 407 reset_VIsual_and_resel(); // stop Visual mode 408 win_rotate(FALSE, (int)Prenum1); // downwards 409 break; 410 411 // rotate windows upwards 412 case 'R': 413 CHECK_CMDWIN; 414 reset_VIsual_and_resel(); // stop Visual mode 415 win_rotate(TRUE, (int)Prenum1); // upwards 416 break; 417 418 // move window to the very top/bottom/left/right 419 case 'K': 420 case 'J': 421 case 'H': 422 case 'L': 423 CHECK_CMDWIN; 424 win_totop((int)Prenum, 425 ((nchar == 'H' || nchar == 'L') ? WSP_VERT : 0) 426 | ((nchar == 'H' || nchar == 'K') ? WSP_TOP : WSP_BOT)); 427 break; 428 429 // make all windows the same height 430 case '=': 431 #ifdef FEAT_GUI 432 need_mouse_correct = TRUE; 433 #endif 434 win_equal(NULL, FALSE, 'b'); 435 break; 436 437 // increase 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 // decrease current window height 446 case '-': 447 #ifdef FEAT_GUI 448 need_mouse_correct = TRUE; 449 #endif 450 win_setheight(curwin->w_height - (int)Prenum1); 451 break; 452 453 // set current window height 454 case Ctrl__: 455 case '_': 456 #ifdef FEAT_GUI 457 need_mouse_correct = TRUE; 458 #endif 459 win_setheight(Prenum ? (int)Prenum : 9999); 460 break; 461 462 // increase 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 // decrease current window width 471 case '<': 472 #ifdef FEAT_GUI 473 need_mouse_correct = TRUE; 474 #endif 475 win_setwidth(curwin->w_width - (int)Prenum1); 476 break; 477 478 // set current window width 479 case '|': 480 #ifdef FEAT_GUI 481 need_mouse_correct = TRUE; 482 #endif 483 win_setwidth(Prenum != 0 ? (int)Prenum : 9999); 484 break; 485 486 // jump to tag and split window if tag exists (in preview window) 487 #if defined(FEAT_QUICKFIX) 488 case '}': 489 CHECK_CMDWIN; 490 if (Prenum) 491 g_do_tagpreview = Prenum; 492 else 493 g_do_tagpreview = p_pvh; 494 #endif 495 // FALLTHROUGH 496 case ']': 497 case Ctrl_RSB: 498 CHECK_CMDWIN; 499 // keep Visual mode, can select words to use as a tag 500 if (Prenum) 501 postponed_split = Prenum; 502 else 503 postponed_split = -1; 504 #ifdef FEAT_QUICKFIX 505 if (nchar != '}') 506 g_do_tagpreview = 0; 507 #endif 508 509 // Execute the command right here, required when "wincmd ]" 510 // was used in a function. 511 do_nv_ident(Ctrl_RSB, NUL); 512 break; 513 514 #ifdef FEAT_SEARCHPATH 515 // edit file name under cursor in a new window 516 case 'f': 517 case 'F': 518 case Ctrl_F: 519 wingotofile: 520 CHECK_CMDWIN; 521 522 ptr = grab_file_name(Prenum1, &lnum); 523 if (ptr != NULL) 524 { 525 tabpage_T *oldtab = curtab; 526 win_T *oldwin = curwin; 527 # ifdef FEAT_GUI 528 need_mouse_correct = TRUE; 529 # endif 530 setpcmark(); 531 if (win_split(0, 0) == OK) 532 { 533 RESET_BINDING(curwin); 534 if (do_ecmd(0, ptr, NULL, NULL, ECMD_LASTL, 535 ECMD_HIDE, NULL) == FAIL) 536 { 537 // Failed to open the file, close the window 538 // opened for it. 539 win_close(curwin, FALSE); 540 goto_tabpage_win(oldtab, oldwin); 541 } 542 else if (nchar == 'F' && lnum >= 0) 543 { 544 curwin->w_cursor.lnum = lnum; 545 check_cursor_lnum(); 546 beginline(BL_SOL | BL_FIX); 547 } 548 } 549 vim_free(ptr); 550 } 551 break; 552 #endif 553 554 #ifdef FEAT_FIND_ID 555 // Go to the first occurrence of the identifier under cursor along path in a 556 // new window -- webb 557 case 'i': // Go to any match 558 case Ctrl_I: 559 type = FIND_ANY; 560 // FALLTHROUGH 561 case 'd': // Go to definition, using 'define' 562 case Ctrl_D: 563 CHECK_CMDWIN; 564 if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0) 565 break; 566 find_pattern_in_path(ptr, 0, len, TRUE, 567 Prenum == 0 ? TRUE : FALSE, type, 568 Prenum1, ACTION_SPLIT, (linenr_T)1, (linenr_T)MAXLNUM); 569 curwin->w_set_curswant = TRUE; 570 break; 571 #endif 572 573 // Quickfix window only: view the result under the cursor in a new split. 574 #if defined(FEAT_QUICKFIX) 575 case K_KENTER: 576 case CAR: 577 if (bt_quickfix(curbuf)) 578 qf_view_result(TRUE); 579 break; 580 #endif 581 582 // CTRL-W g extended commands 583 case 'g': 584 case Ctrl_G: 585 CHECK_CMDWIN; 586 #ifdef USE_ON_FLY_SCROLL 587 dont_scroll = TRUE; // disallow scrolling here 588 #endif 589 ++no_mapping; 590 ++allow_keys; // no mapping for xchar, but allow key codes 591 if (xchar == NUL) 592 xchar = plain_vgetc(); 593 LANGMAP_ADJUST(xchar, TRUE); 594 --no_mapping; 595 --allow_keys; 596 #ifdef FEAT_CMDL_INFO 597 (void)add_to_showcmd(xchar); 598 #endif 599 switch (xchar) 600 { 601 #if defined(FEAT_QUICKFIX) 602 case '}': 603 xchar = Ctrl_RSB; 604 if (Prenum) 605 g_do_tagpreview = Prenum; 606 else 607 g_do_tagpreview = p_pvh; 608 #endif 609 // FALLTHROUGH 610 case ']': 611 case Ctrl_RSB: 612 // keep Visual mode, can select words to use as a tag 613 if (Prenum) 614 postponed_split = Prenum; 615 else 616 postponed_split = -1; 617 618 // Execute the command right here, required when 619 // "wincmd g}" was used in a function. 620 do_nv_ident('g', xchar); 621 break; 622 623 #ifdef FEAT_SEARCHPATH 624 case 'f': // CTRL-W gf: "gf" in a new tab page 625 case 'F': // CTRL-W gF: "gF" in a new tab page 626 cmdmod.cmod_tab = tabpage_index(curtab) + 1; 627 nchar = xchar; 628 goto wingotofile; 629 #endif 630 case 't': // CTRL-W gt: go to next tab page 631 goto_tabpage((int)Prenum); 632 break; 633 634 case 'T': // CTRL-W gT: go to previous tab page 635 goto_tabpage(-(int)Prenum1); 636 break; 637 638 case TAB: // CTRL-W g<Tab>: go to last used tab page 639 if (goto_tabpage_lastused() == FAIL) 640 beep_flush(); 641 break; 642 643 default: 644 beep_flush(); 645 break; 646 } 647 break; 648 649 default: beep_flush(); 650 break; 651 } 652 } 653 654 /* 655 * Figure out the address type for ":wincmd". 656 */ 657 void 658 get_wincmd_addr_type(char_u *arg, exarg_T *eap) 659 { 660 switch (*arg) 661 { 662 case 'S': 663 case Ctrl_S: 664 case 's': 665 case Ctrl_N: 666 case 'n': 667 case 'j': 668 case Ctrl_J: 669 case 'k': 670 case Ctrl_K: 671 case 'T': 672 case Ctrl_R: 673 case 'r': 674 case 'R': 675 case 'K': 676 case 'J': 677 case '+': 678 case '-': 679 case Ctrl__: 680 case '_': 681 case '|': 682 case ']': 683 case Ctrl_RSB: 684 case 'g': 685 case Ctrl_G: 686 case Ctrl_V: 687 case 'v': 688 case 'h': 689 case Ctrl_H: 690 case 'l': 691 case Ctrl_L: 692 case 'H': 693 case 'L': 694 case '>': 695 case '<': 696 #if defined(FEAT_QUICKFIX) 697 case '}': 698 #endif 699 #ifdef FEAT_SEARCHPATH 700 case 'f': 701 case 'F': 702 case Ctrl_F: 703 #endif 704 #ifdef FEAT_FIND_ID 705 case 'i': 706 case Ctrl_I: 707 case 'd': 708 case Ctrl_D: 709 #endif 710 // window size or any count 711 eap->addr_type = ADDR_OTHER; 712 break; 713 714 case Ctrl_HAT: 715 case '^': 716 // buffer number 717 eap->addr_type = ADDR_BUFFERS; 718 break; 719 720 case Ctrl_Q: 721 case 'q': 722 case Ctrl_C: 723 case 'c': 724 case Ctrl_O: 725 case 'o': 726 case Ctrl_W: 727 case 'w': 728 case 'W': 729 case 'x': 730 case Ctrl_X: 731 // window number 732 eap->addr_type = ADDR_WINDOWS; 733 break; 734 735 #if defined(FEAT_QUICKFIX) 736 case Ctrl_Z: 737 case 'z': 738 case 'P': 739 #endif 740 case 't': 741 case Ctrl_T: 742 case 'b': 743 case Ctrl_B: 744 case 'p': 745 case Ctrl_P: 746 case '=': 747 case CAR: 748 // no count 749 eap->addr_type = ADDR_NONE; 750 break; 751 } 752 } 753 754 static void 755 cmd_with_count( 756 char *cmd, 757 char_u *bufp, 758 size_t bufsize, 759 long Prenum) 760 { 761 if (Prenum > 0) 762 vim_snprintf((char *)bufp, bufsize, "%s %ld", cmd, Prenum); 763 else 764 STRCPY(bufp, cmd); 765 } 766 767 /* 768 * If "split_disallowed" is set given an error and return FAIL. 769 * Otherwise return OK. 770 */ 771 static int 772 check_split_disallowed() 773 { 774 if (split_disallowed > 0) 775 { 776 emsg(_("E242: Can't split a window while closing another")); 777 return FAIL; 778 } 779 if (curwin->w_buffer->b_locked_split) 780 { 781 emsg(_(e_cannot_split_window_when_closing_buffer)); 782 return FAIL; 783 } 784 return OK; 785 } 786 787 /* 788 * split the current window, implements CTRL-W s and :split 789 * 790 * "size" is the height or width for the new window, 0 to use half of current 791 * height or width. 792 * 793 * "flags": 794 * WSP_ROOM: require enough room for new window 795 * WSP_VERT: vertical split. 796 * WSP_TOP: open window at the top-left of the shell (help window). 797 * WSP_BOT: open window at the bottom-right of the shell (quickfix window). 798 * WSP_HELP: creating the help window, keep layout snapshot 799 * 800 * return FAIL for failure, OK otherwise 801 */ 802 int 803 win_split(int size, int flags) 804 { 805 if (ERROR_IF_ANY_POPUP_WINDOW) 806 return FAIL; 807 808 if (check_split_disallowed() == FAIL) 809 return FAIL; 810 811 // When the ":tab" modifier was used open a new tab page instead. 812 if (may_open_tabpage() == OK) 813 return OK; 814 815 // Add flags from ":vertical", ":topleft" and ":botright". 816 flags |= cmdmod.cmod_split; 817 if ((flags & WSP_TOP) && (flags & WSP_BOT)) 818 { 819 emsg(_("E442: Can't split topleft and botright at the same time")); 820 return FAIL; 821 } 822 823 // When creating the help window make a snapshot of the window layout. 824 // Otherwise clear the snapshot, it's now invalid. 825 if (flags & WSP_HELP) 826 make_snapshot(SNAP_HELP_IDX); 827 else 828 clear_snapshot(curtab, SNAP_HELP_IDX); 829 830 return win_split_ins(size, flags, NULL, 0); 831 } 832 833 /* 834 * When "new_wp" is NULL: split the current window in two. 835 * When "new_wp" is not NULL: insert this window at the far 836 * top/left/right/bottom. 837 * return FAIL for failure, OK otherwise 838 */ 839 int 840 win_split_ins( 841 int size, 842 int flags, 843 win_T *new_wp, 844 int dir) 845 { 846 win_T *wp = new_wp; 847 win_T *oldwin; 848 int new_size = size; 849 int i; 850 int need_status = 0; 851 int do_equal = FALSE; 852 int needed; 853 int available; 854 int oldwin_height = 0; 855 int layout; 856 frame_T *frp, *curfrp, *frp2, *prevfrp; 857 int before; 858 int minheight; 859 int wmh1; 860 int did_set_fraction = FALSE; 861 862 if (flags & WSP_TOP) 863 oldwin = firstwin; 864 else if (flags & WSP_BOT) 865 oldwin = lastwin; 866 else 867 oldwin = curwin; 868 869 // add a status line when p_ls == 1 and splitting the first window 870 if (ONE_WINDOW && p_ls == 1 && oldwin->w_status_height == 0) 871 { 872 if (VISIBLE_HEIGHT(oldwin) <= p_wmh && new_wp == NULL) 873 { 874 emsg(_(e_not_enough_room)); 875 return FAIL; 876 } 877 need_status = STATUS_HEIGHT; 878 } 879 880 #ifdef FEAT_GUI 881 // May be needed for the scrollbars that are going to change. 882 if (gui.in_use) 883 out_flush(); 884 #endif 885 886 if (flags & WSP_VERT) 887 { 888 int wmw1; 889 int minwidth; 890 891 layout = FR_ROW; 892 893 /* 894 * Check if we are able to split the current window and compute its 895 * width. 896 */ 897 // Current window requires at least 1 space. 898 wmw1 = (p_wmw == 0 ? 1 : p_wmw); 899 needed = wmw1 + 1; 900 if (flags & WSP_ROOM) 901 needed += p_wiw - wmw1; 902 if (flags & (WSP_BOT | WSP_TOP)) 903 { 904 minwidth = frame_minwidth(topframe, NOWIN); 905 available = topframe->fr_width; 906 needed += minwidth; 907 } 908 else if (p_ea) 909 { 910 minwidth = frame_minwidth(oldwin->w_frame, NOWIN); 911 prevfrp = oldwin->w_frame; 912 for (frp = oldwin->w_frame->fr_parent; frp != NULL; 913 frp = frp->fr_parent) 914 { 915 if (frp->fr_layout == FR_ROW) 916 FOR_ALL_FRAMES(frp2, frp->fr_child) 917 if (frp2 != prevfrp) 918 minwidth += frame_minwidth(frp2, NOWIN); 919 prevfrp = frp; 920 } 921 available = topframe->fr_width; 922 needed += minwidth; 923 } 924 else 925 { 926 minwidth = frame_minwidth(oldwin->w_frame, NOWIN); 927 available = oldwin->w_frame->fr_width; 928 needed += minwidth; 929 } 930 if (available < needed && new_wp == NULL) 931 { 932 emsg(_(e_not_enough_room)); 933 return FAIL; 934 } 935 if (new_size == 0) 936 new_size = oldwin->w_width / 2; 937 if (new_size > available - minwidth - 1) 938 new_size = available - minwidth - 1; 939 if (new_size < wmw1) 940 new_size = wmw1; 941 942 // if it doesn't fit in the current window, need win_equal() 943 if (oldwin->w_width - new_size - 1 < p_wmw) 944 do_equal = TRUE; 945 946 // We don't like to take lines for the new window from a 947 // 'winfixwidth' window. Take them from a window to the left or right 948 // instead, if possible. Add one for the separator. 949 if (oldwin->w_p_wfw) 950 win_setwidth_win(oldwin->w_width + new_size + 1, oldwin); 951 952 // Only make all windows the same width if one of them (except oldwin) 953 // is wider than one of the split windows. 954 if (!do_equal && p_ea && size == 0 && *p_ead != 'v' 955 && oldwin->w_frame->fr_parent != NULL) 956 { 957 frp = oldwin->w_frame->fr_parent->fr_child; 958 while (frp != NULL) 959 { 960 if (frp->fr_win != oldwin && frp->fr_win != NULL 961 && (frp->fr_win->w_width > new_size 962 || frp->fr_win->w_width > oldwin->w_width 963 - new_size - 1)) 964 { 965 do_equal = TRUE; 966 break; 967 } 968 frp = frp->fr_next; 969 } 970 } 971 } 972 else 973 { 974 layout = FR_COL; 975 976 /* 977 * Check if we are able to split the current window and compute its 978 * height. 979 */ 980 // Current window requires at least 1 space. 981 wmh1 = (p_wmh == 0 ? 1 : p_wmh) + WINBAR_HEIGHT(curwin); 982 needed = wmh1 + STATUS_HEIGHT; 983 if (flags & WSP_ROOM) 984 needed += p_wh - wmh1; 985 if (flags & (WSP_BOT | WSP_TOP)) 986 { 987 minheight = frame_minheight(topframe, NOWIN) + need_status; 988 available = topframe->fr_height; 989 needed += minheight; 990 } 991 else if (p_ea) 992 { 993 minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; 994 prevfrp = oldwin->w_frame; 995 for (frp = oldwin->w_frame->fr_parent; frp != NULL; 996 frp = frp->fr_parent) 997 { 998 if (frp->fr_layout == FR_COL) 999 FOR_ALL_FRAMES(frp2, frp->fr_child) 1000 if (frp2 != prevfrp) 1001 minheight += frame_minheight(frp2, NOWIN); 1002 prevfrp = frp; 1003 } 1004 available = topframe->fr_height; 1005 needed += minheight; 1006 } 1007 else 1008 { 1009 minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; 1010 available = oldwin->w_frame->fr_height; 1011 needed += minheight; 1012 } 1013 if (available < needed && new_wp == NULL) 1014 { 1015 emsg(_(e_not_enough_room)); 1016 return FAIL; 1017 } 1018 oldwin_height = oldwin->w_height; 1019 if (need_status) 1020 { 1021 oldwin->w_status_height = STATUS_HEIGHT; 1022 oldwin_height -= STATUS_HEIGHT; 1023 } 1024 if (new_size == 0) 1025 new_size = oldwin_height / 2; 1026 if (new_size > available - minheight - STATUS_HEIGHT) 1027 new_size = available - minheight - STATUS_HEIGHT; 1028 if (new_size < wmh1) 1029 new_size = wmh1; 1030 1031 // if it doesn't fit in the current window, need win_equal() 1032 if (oldwin_height - new_size - STATUS_HEIGHT < p_wmh) 1033 do_equal = TRUE; 1034 1035 // We don't like to take lines for the new window from a 1036 // 'winfixheight' window. Take them from a window above or below 1037 // instead, if possible. 1038 if (oldwin->w_p_wfh) 1039 { 1040 // Set w_fraction now so that the cursor keeps the same relative 1041 // vertical position using the old height. 1042 set_fraction(oldwin); 1043 did_set_fraction = TRUE; 1044 1045 win_setheight_win(oldwin->w_height + new_size + STATUS_HEIGHT, 1046 oldwin); 1047 oldwin_height = oldwin->w_height; 1048 if (need_status) 1049 oldwin_height -= STATUS_HEIGHT; 1050 } 1051 1052 // Only make all windows the same height if one of them (except oldwin) 1053 // is higher than one of the split windows. 1054 if (!do_equal && p_ea && size == 0 && *p_ead != 'h' 1055 && oldwin->w_frame->fr_parent != NULL) 1056 { 1057 frp = oldwin->w_frame->fr_parent->fr_child; 1058 while (frp != NULL) 1059 { 1060 if (frp->fr_win != oldwin && frp->fr_win != NULL 1061 && (frp->fr_win->w_height > new_size 1062 || frp->fr_win->w_height > oldwin_height - new_size 1063 - STATUS_HEIGHT)) 1064 { 1065 do_equal = TRUE; 1066 break; 1067 } 1068 frp = frp->fr_next; 1069 } 1070 } 1071 } 1072 1073 /* 1074 * allocate new window structure and link it in the window list 1075 */ 1076 if ((flags & WSP_TOP) == 0 1077 && ((flags & WSP_BOT) 1078 || (flags & WSP_BELOW) 1079 || (!(flags & WSP_ABOVE) 1080 && ( (flags & WSP_VERT) ? p_spr : p_sb)))) 1081 { 1082 // new window below/right of current one 1083 if (new_wp == NULL) 1084 wp = win_alloc(oldwin, FALSE); 1085 else 1086 win_append(oldwin, wp); 1087 } 1088 else 1089 { 1090 if (new_wp == NULL) 1091 wp = win_alloc(oldwin->w_prev, FALSE); 1092 else 1093 win_append(oldwin->w_prev, wp); 1094 } 1095 1096 if (new_wp == NULL) 1097 { 1098 if (wp == NULL) 1099 return FAIL; 1100 1101 new_frame(wp); 1102 if (wp->w_frame == NULL) 1103 { 1104 win_free(wp, NULL); 1105 return FAIL; 1106 } 1107 1108 // make the contents of the new window the same as the current one 1109 win_init(wp, curwin, flags); 1110 } 1111 1112 /* 1113 * Reorganise the tree of frames to insert the new window. 1114 */ 1115 if (flags & (WSP_TOP | WSP_BOT)) 1116 { 1117 if ((topframe->fr_layout == FR_COL && (flags & WSP_VERT) == 0) 1118 || (topframe->fr_layout == FR_ROW && (flags & WSP_VERT) != 0)) 1119 { 1120 curfrp = topframe->fr_child; 1121 if (flags & WSP_BOT) 1122 while (curfrp->fr_next != NULL) 1123 curfrp = curfrp->fr_next; 1124 } 1125 else 1126 curfrp = topframe; 1127 before = (flags & WSP_TOP); 1128 } 1129 else 1130 { 1131 curfrp = oldwin->w_frame; 1132 if (flags & WSP_BELOW) 1133 before = FALSE; 1134 else if (flags & WSP_ABOVE) 1135 before = TRUE; 1136 else if (flags & WSP_VERT) 1137 before = !p_spr; 1138 else 1139 before = !p_sb; 1140 } 1141 if (curfrp->fr_parent == NULL || curfrp->fr_parent->fr_layout != layout) 1142 { 1143 // Need to create a new frame in the tree to make a branch. 1144 frp = ALLOC_CLEAR_ONE(frame_T); 1145 *frp = *curfrp; 1146 curfrp->fr_layout = layout; 1147 frp->fr_parent = curfrp; 1148 frp->fr_next = NULL; 1149 frp->fr_prev = NULL; 1150 curfrp->fr_child = frp; 1151 curfrp->fr_win = NULL; 1152 curfrp = frp; 1153 if (frp->fr_win != NULL) 1154 oldwin->w_frame = frp; 1155 else 1156 FOR_ALL_FRAMES(frp, frp->fr_child) 1157 frp->fr_parent = curfrp; 1158 } 1159 1160 if (new_wp == NULL) 1161 frp = wp->w_frame; 1162 else 1163 frp = new_wp->w_frame; 1164 frp->fr_parent = curfrp->fr_parent; 1165 1166 // Insert the new frame at the right place in the frame list. 1167 if (before) 1168 frame_insert(curfrp, frp); 1169 else 1170 frame_append(curfrp, frp); 1171 1172 // Set w_fraction now so that the cursor keeps the same relative 1173 // vertical position. 1174 if (!did_set_fraction) 1175 set_fraction(oldwin); 1176 wp->w_fraction = oldwin->w_fraction; 1177 1178 if (flags & WSP_VERT) 1179 { 1180 wp->w_p_scr = curwin->w_p_scr; 1181 1182 if (need_status) 1183 { 1184 win_new_height(oldwin, oldwin->w_height - 1); 1185 oldwin->w_status_height = need_status; 1186 } 1187 if (flags & (WSP_TOP | WSP_BOT)) 1188 { 1189 // set height and row of new window to full height 1190 wp->w_winrow = tabline_height(); 1191 win_new_height(wp, curfrp->fr_height - (p_ls > 0) 1192 - WINBAR_HEIGHT(wp)); 1193 wp->w_status_height = (p_ls > 0); 1194 } 1195 else 1196 { 1197 // height and row of new window is same as current window 1198 wp->w_winrow = oldwin->w_winrow; 1199 win_new_height(wp, VISIBLE_HEIGHT(oldwin)); 1200 wp->w_status_height = oldwin->w_status_height; 1201 } 1202 frp->fr_height = curfrp->fr_height; 1203 1204 // "new_size" of the current window goes to the new window, use 1205 // one column for the vertical separator 1206 win_new_width(wp, new_size); 1207 if (before) 1208 wp->w_vsep_width = 1; 1209 else 1210 { 1211 wp->w_vsep_width = oldwin->w_vsep_width; 1212 oldwin->w_vsep_width = 1; 1213 } 1214 if (flags & (WSP_TOP | WSP_BOT)) 1215 { 1216 if (flags & WSP_BOT) 1217 frame_add_vsep(curfrp); 1218 // Set width of neighbor frame 1219 frame_new_width(curfrp, curfrp->fr_width 1220 - (new_size + ((flags & WSP_TOP) != 0)), flags & WSP_TOP, 1221 FALSE); 1222 } 1223 else 1224 win_new_width(oldwin, oldwin->w_width - (new_size + 1)); 1225 if (before) // new window left of current one 1226 { 1227 wp->w_wincol = oldwin->w_wincol; 1228 oldwin->w_wincol += new_size + 1; 1229 } 1230 else // new window right of current one 1231 wp->w_wincol = oldwin->w_wincol + oldwin->w_width + 1; 1232 frame_fix_width(oldwin); 1233 frame_fix_width(wp); 1234 } 1235 else 1236 { 1237 // width and column of new window is same as current window 1238 if (flags & (WSP_TOP | WSP_BOT)) 1239 { 1240 wp->w_wincol = 0; 1241 win_new_width(wp, Columns); 1242 wp->w_vsep_width = 0; 1243 } 1244 else 1245 { 1246 wp->w_wincol = oldwin->w_wincol; 1247 win_new_width(wp, oldwin->w_width); 1248 wp->w_vsep_width = oldwin->w_vsep_width; 1249 } 1250 frp->fr_width = curfrp->fr_width; 1251 1252 // "new_size" of the current window goes to the new window, use 1253 // one row for the status line 1254 win_new_height(wp, new_size); 1255 if (flags & (WSP_TOP | WSP_BOT)) 1256 { 1257 int new_fr_height = curfrp->fr_height - new_size 1258 + WINBAR_HEIGHT(wp) ; 1259 1260 if (!((flags & WSP_BOT) && p_ls == 0)) 1261 new_fr_height -= STATUS_HEIGHT; 1262 frame_new_height(curfrp, new_fr_height, flags & WSP_TOP, FALSE); 1263 } 1264 else 1265 win_new_height(oldwin, oldwin_height - (new_size + STATUS_HEIGHT)); 1266 if (before) // new window above current one 1267 { 1268 wp->w_winrow = oldwin->w_winrow; 1269 wp->w_status_height = STATUS_HEIGHT; 1270 oldwin->w_winrow += wp->w_height + STATUS_HEIGHT; 1271 } 1272 else // new window below current one 1273 { 1274 wp->w_winrow = oldwin->w_winrow + VISIBLE_HEIGHT(oldwin) 1275 + STATUS_HEIGHT; 1276 wp->w_status_height = oldwin->w_status_height; 1277 if (!(flags & WSP_BOT)) 1278 oldwin->w_status_height = STATUS_HEIGHT; 1279 } 1280 if (flags & WSP_BOT) 1281 frame_add_statusline(curfrp); 1282 frame_fix_height(wp); 1283 frame_fix_height(oldwin); 1284 } 1285 1286 if (flags & (WSP_TOP | WSP_BOT)) 1287 (void)win_comp_pos(); 1288 1289 // Both windows need redrawing. Update all status lines, in case they 1290 // show something related to the window count or position. 1291 redraw_win_later(wp, NOT_VALID); 1292 redraw_win_later(oldwin, NOT_VALID); 1293 status_redraw_all(); 1294 1295 if (need_status) 1296 { 1297 msg_row = Rows - 1; 1298 msg_col = sc_col; 1299 msg_clr_eos_force(); // Old command/ruler may still be there 1300 comp_col(); 1301 msg_row = Rows - 1; 1302 msg_col = 0; // put position back at start of line 1303 } 1304 1305 /* 1306 * equalize the window sizes. 1307 */ 1308 if (do_equal || dir != 0) 1309 win_equal(wp, TRUE, 1310 (flags & WSP_VERT) ? (dir == 'v' ? 'b' : 'h') 1311 : dir == 'h' ? 'b' : 'v'); 1312 1313 // Don't change the window height/width to 'winheight' / 'winwidth' if a 1314 // size was given. 1315 if (flags & WSP_VERT) 1316 { 1317 i = p_wiw; 1318 if (size != 0) 1319 p_wiw = size; 1320 1321 # ifdef FEAT_GUI 1322 // When 'guioptions' includes 'L' or 'R' may have to add scrollbars. 1323 if (gui.in_use) 1324 gui_init_which_components(NULL); 1325 # endif 1326 } 1327 else 1328 { 1329 i = p_wh; 1330 if (size != 0) 1331 p_wh = size; 1332 } 1333 1334 #ifdef FEAT_JUMPLIST 1335 // Keep same changelist position in new window. 1336 wp->w_changelistidx = oldwin->w_changelistidx; 1337 #endif 1338 1339 /* 1340 * make the new window the current window 1341 */ 1342 (void)win_enter_ext(wp, WEE_TRIGGER_NEW_AUTOCMDS 1343 | WEE_TRIGGER_ENTER_AUTOCMDS | WEE_TRIGGER_LEAVE_AUTOCMDS); 1344 if (flags & WSP_VERT) 1345 p_wiw = i; 1346 else 1347 p_wh = i; 1348 1349 return OK; 1350 } 1351 1352 1353 /* 1354 * Initialize window "newp" from window "oldp". 1355 * Used when splitting a window and when creating a new tab page. 1356 * The windows will both edit the same buffer. 1357 * WSP_NEWLOC may be specified in flags to prevent the location list from 1358 * being copied. 1359 */ 1360 static void 1361 win_init(win_T *newp, win_T *oldp, int flags UNUSED) 1362 { 1363 int i; 1364 1365 newp->w_buffer = oldp->w_buffer; 1366 #ifdef FEAT_SYN_HL 1367 newp->w_s = &(oldp->w_buffer->b_s); 1368 #endif 1369 oldp->w_buffer->b_nwindows++; 1370 newp->w_cursor = oldp->w_cursor; 1371 newp->w_valid = 0; 1372 newp->w_curswant = oldp->w_curswant; 1373 newp->w_set_curswant = oldp->w_set_curswant; 1374 newp->w_topline = oldp->w_topline; 1375 #ifdef FEAT_DIFF 1376 newp->w_topfill = oldp->w_topfill; 1377 #endif 1378 newp->w_leftcol = oldp->w_leftcol; 1379 newp->w_pcmark = oldp->w_pcmark; 1380 newp->w_prev_pcmark = oldp->w_prev_pcmark; 1381 newp->w_alt_fnum = oldp->w_alt_fnum; 1382 newp->w_wrow = oldp->w_wrow; 1383 newp->w_fraction = oldp->w_fraction; 1384 newp->w_prev_fraction_row = oldp->w_prev_fraction_row; 1385 #ifdef FEAT_JUMPLIST 1386 copy_jumplist(oldp, newp); 1387 #endif 1388 #ifdef FEAT_QUICKFIX 1389 if (flags & WSP_NEWLOC) 1390 { 1391 // Don't copy the location list. 1392 newp->w_llist = NULL; 1393 newp->w_llist_ref = NULL; 1394 } 1395 else 1396 copy_loclist_stack(oldp, newp); 1397 #endif 1398 newp->w_localdir = (oldp->w_localdir == NULL) 1399 ? NULL : vim_strsave(oldp->w_localdir); 1400 newp->w_prevdir = (oldp->w_prevdir == NULL) 1401 ? NULL : vim_strsave(oldp->w_prevdir); 1402 1403 // copy tagstack and folds 1404 for (i = 0; i < oldp->w_tagstacklen; i++) 1405 { 1406 taggy_T *tag = &newp->w_tagstack[i]; 1407 *tag = oldp->w_tagstack[i]; 1408 if (tag->tagname != NULL) 1409 tag->tagname = vim_strsave(tag->tagname); 1410 if (tag->user_data != NULL) 1411 tag->user_data = vim_strsave(tag->user_data); 1412 } 1413 newp->w_tagstackidx = oldp->w_tagstackidx; 1414 newp->w_tagstacklen = oldp->w_tagstacklen; 1415 #ifdef FEAT_FOLDING 1416 copyFoldingState(oldp, newp); 1417 #endif 1418 1419 win_init_some(newp, oldp); 1420 1421 #ifdef FEAT_SYN_HL 1422 check_colorcolumn(newp); 1423 #endif 1424 } 1425 1426 /* 1427 * Initialize window "newp" from window "old". 1428 * Only the essential things are copied. 1429 */ 1430 static void 1431 win_init_some(win_T *newp, win_T *oldp) 1432 { 1433 // Use the same argument list. 1434 newp->w_alist = oldp->w_alist; 1435 ++newp->w_alist->al_refcount; 1436 newp->w_arg_idx = oldp->w_arg_idx; 1437 1438 // copy options from existing window 1439 win_copy_options(oldp, newp); 1440 } 1441 1442 /* 1443 * Return TRUE if "win" is a global popup or a popup in the current tab page. 1444 */ 1445 int 1446 win_valid_popup(win_T *win UNUSED) 1447 { 1448 #ifdef FEAT_PROP_POPUP 1449 win_T *wp; 1450 1451 FOR_ALL_POPUPWINS(wp) 1452 if (wp == win) 1453 return TRUE; 1454 FOR_ALL_POPUPWINS_IN_TAB(curtab, wp) 1455 if (wp == win) 1456 return TRUE; 1457 #endif 1458 return FALSE; 1459 } 1460 1461 /* 1462 * Check if "win" is a pointer to an existing window in the current tab page. 1463 */ 1464 int 1465 win_valid(win_T *win) 1466 { 1467 win_T *wp; 1468 1469 if (win == NULL) 1470 return FALSE; 1471 FOR_ALL_WINDOWS(wp) 1472 if (wp == win) 1473 return TRUE; 1474 return win_valid_popup(win); 1475 } 1476 1477 /* 1478 * Find window "id" in the current tab page. 1479 * Also find popup windows. 1480 * Return NULL if not found. 1481 */ 1482 win_T * 1483 win_find_by_id(int id) 1484 { 1485 win_T *wp; 1486 1487 FOR_ALL_WINDOWS(wp) 1488 if (wp->w_id == id) 1489 return wp; 1490 #ifdef FEAT_PROP_POPUP 1491 FOR_ALL_POPUPWINS(wp) 1492 if (wp->w_id == id) 1493 return wp; 1494 FOR_ALL_POPUPWINS_IN_TAB(curtab, wp) 1495 if (wp->w_id == id) 1496 return wp; 1497 #endif 1498 return NULL; 1499 } 1500 1501 /* 1502 * Check if "win" is a pointer to an existing window in any tab page. 1503 */ 1504 int 1505 win_valid_any_tab(win_T *win) 1506 { 1507 win_T *wp; 1508 tabpage_T *tp; 1509 1510 if (win == NULL) 1511 return FALSE; 1512 FOR_ALL_TABPAGES(tp) 1513 { 1514 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 1515 { 1516 if (wp == win) 1517 return TRUE; 1518 } 1519 #ifdef FEAT_PROP_POPUP 1520 FOR_ALL_POPUPWINS_IN_TAB(tp, wp) 1521 if (wp == win) 1522 return TRUE; 1523 #endif 1524 } 1525 return win_valid_popup(win); 1526 } 1527 1528 /* 1529 * Return the number of windows. 1530 */ 1531 int 1532 win_count(void) 1533 { 1534 win_T *wp; 1535 int count = 0; 1536 1537 FOR_ALL_WINDOWS(wp) 1538 ++count; 1539 return count; 1540 } 1541 1542 /* 1543 * Make "count" windows on the screen. 1544 * Return actual number of windows on the screen. 1545 * Must be called when there is just one window, filling the whole screen 1546 * (excluding the command line). 1547 */ 1548 int 1549 make_windows( 1550 int count, 1551 int vertical UNUSED) // split windows vertically if TRUE 1552 { 1553 int maxcount; 1554 int todo; 1555 1556 if (vertical) 1557 { 1558 // Each windows needs at least 'winminwidth' lines and a separator 1559 // column. 1560 maxcount = (curwin->w_width + curwin->w_vsep_width 1561 - (p_wiw - p_wmw)) / (p_wmw + 1); 1562 } 1563 else 1564 { 1565 // Each window needs at least 'winminheight' lines and a status line. 1566 maxcount = (VISIBLE_HEIGHT(curwin) + curwin->w_status_height 1567 - (p_wh - p_wmh)) / (p_wmh + STATUS_HEIGHT); 1568 } 1569 1570 if (maxcount < 2) 1571 maxcount = 2; 1572 if (count > maxcount) 1573 count = maxcount; 1574 1575 /* 1576 * add status line now, otherwise first window will be too big 1577 */ 1578 if (count > 1) 1579 last_status(TRUE); 1580 1581 /* 1582 * Don't execute autocommands while creating the windows. Must do that 1583 * when putting the buffers in the windows. 1584 */ 1585 block_autocmds(); 1586 1587 // todo is number of windows left to create 1588 for (todo = count - 1; todo > 0; --todo) 1589 if (vertical) 1590 { 1591 if (win_split(curwin->w_width - (curwin->w_width - todo) 1592 / (todo + 1) - 1, WSP_VERT | WSP_ABOVE) == FAIL) 1593 break; 1594 } 1595 else 1596 { 1597 if (win_split(curwin->w_height - (curwin->w_height - todo 1598 * STATUS_HEIGHT) / (todo + 1) 1599 - STATUS_HEIGHT, WSP_ABOVE) == FAIL) 1600 break; 1601 } 1602 1603 unblock_autocmds(); 1604 1605 // return actual number of windows 1606 return (count - todo); 1607 } 1608 1609 /* 1610 * Exchange current and next window 1611 */ 1612 static void 1613 win_exchange(long Prenum) 1614 { 1615 frame_T *frp; 1616 frame_T *frp2; 1617 win_T *wp; 1618 win_T *wp2; 1619 int temp; 1620 1621 if (ERROR_IF_ANY_POPUP_WINDOW) 1622 return; 1623 if (ONE_WINDOW) // just one window 1624 { 1625 beep_flush(); 1626 return; 1627 } 1628 1629 #ifdef FEAT_GUI 1630 need_mouse_correct = TRUE; 1631 #endif 1632 1633 /* 1634 * find window to exchange with 1635 */ 1636 if (Prenum) 1637 { 1638 frp = curwin->w_frame->fr_parent->fr_child; 1639 while (frp != NULL && --Prenum > 0) 1640 frp = frp->fr_next; 1641 } 1642 else if (curwin->w_frame->fr_next != NULL) // Swap with next 1643 frp = curwin->w_frame->fr_next; 1644 else // Swap last window in row/col with previous 1645 frp = curwin->w_frame->fr_prev; 1646 1647 // We can only exchange a window with another window, not with a frame 1648 // containing windows. 1649 if (frp == NULL || frp->fr_win == NULL || frp->fr_win == curwin) 1650 return; 1651 wp = frp->fr_win; 1652 1653 /* 1654 * 1. remove curwin from the list. Remember after which window it was in wp2 1655 * 2. insert curwin before wp in the list 1656 * if wp != wp2 1657 * 3. remove wp from the list 1658 * 4. insert wp after wp2 1659 * 5. exchange the status line height and vsep width. 1660 */ 1661 wp2 = curwin->w_prev; 1662 frp2 = curwin->w_frame->fr_prev; 1663 if (wp->w_prev != curwin) 1664 { 1665 win_remove(curwin, NULL); 1666 frame_remove(curwin->w_frame); 1667 win_append(wp->w_prev, curwin); 1668 frame_insert(frp, curwin->w_frame); 1669 } 1670 if (wp != wp2) 1671 { 1672 win_remove(wp, NULL); 1673 frame_remove(wp->w_frame); 1674 win_append(wp2, wp); 1675 if (frp2 == NULL) 1676 frame_insert(wp->w_frame->fr_parent->fr_child, wp->w_frame); 1677 else 1678 frame_append(frp2, wp->w_frame); 1679 } 1680 temp = curwin->w_status_height; 1681 curwin->w_status_height = wp->w_status_height; 1682 wp->w_status_height = temp; 1683 temp = curwin->w_vsep_width; 1684 curwin->w_vsep_width = wp->w_vsep_width; 1685 wp->w_vsep_width = temp; 1686 1687 // If the windows are not in the same frame, exchange the sizes to avoid 1688 // messing up the window layout. Otherwise fix the frame sizes. 1689 if (curwin->w_frame->fr_parent != wp->w_frame->fr_parent) 1690 { 1691 temp = curwin->w_height; 1692 curwin->w_height = wp->w_height; 1693 wp->w_height = temp; 1694 temp = curwin->w_width; 1695 curwin->w_width = wp->w_width; 1696 wp->w_width = temp; 1697 } 1698 else 1699 { 1700 frame_fix_height(curwin); 1701 frame_fix_height(wp); 1702 frame_fix_width(curwin); 1703 frame_fix_width(wp); 1704 } 1705 1706 (void)win_comp_pos(); // recompute window positions 1707 1708 win_enter(wp, TRUE); 1709 redraw_all_later(NOT_VALID); 1710 } 1711 1712 /* 1713 * rotate windows: if upwards TRUE the second window becomes the first one 1714 * if upwards FALSE the first window becomes the second one 1715 */ 1716 static void 1717 win_rotate(int upwards, int count) 1718 { 1719 win_T *wp1; 1720 win_T *wp2; 1721 frame_T *frp; 1722 int n; 1723 1724 if (ONE_WINDOW) // nothing to do 1725 { 1726 beep_flush(); 1727 return; 1728 } 1729 1730 #ifdef FEAT_GUI 1731 need_mouse_correct = TRUE; 1732 #endif 1733 1734 // Check if all frames in this row/col have one window. 1735 FOR_ALL_FRAMES(frp, curwin->w_frame->fr_parent->fr_child) 1736 if (frp->fr_win == NULL) 1737 { 1738 emsg(_("E443: Cannot rotate when another window is split")); 1739 return; 1740 } 1741 1742 while (count--) 1743 { 1744 if (upwards) // first window becomes last window 1745 { 1746 // remove first window/frame from the list 1747 frp = curwin->w_frame->fr_parent->fr_child; 1748 wp1 = frp->fr_win; 1749 win_remove(wp1, NULL); 1750 frame_remove(frp); 1751 1752 // find last frame and append removed window/frame after it 1753 for ( ; frp->fr_next != NULL; frp = frp->fr_next) 1754 ; 1755 win_append(frp->fr_win, wp1); 1756 frame_append(frp, wp1->w_frame); 1757 1758 wp2 = frp->fr_win; // previously last window 1759 } 1760 else // last window becomes first window 1761 { 1762 // find last window/frame in the list and remove it 1763 for (frp = curwin->w_frame; frp->fr_next != NULL; 1764 frp = frp->fr_next) 1765 ; 1766 wp1 = frp->fr_win; 1767 wp2 = wp1->w_prev; // will become last window 1768 win_remove(wp1, NULL); 1769 frame_remove(frp); 1770 1771 // append the removed window/frame before the first in the list 1772 win_append(frp->fr_parent->fr_child->fr_win->w_prev, wp1); 1773 frame_insert(frp->fr_parent->fr_child, frp); 1774 } 1775 1776 // exchange status height and vsep width of old and new last window 1777 n = wp2->w_status_height; 1778 wp2->w_status_height = wp1->w_status_height; 1779 wp1->w_status_height = n; 1780 frame_fix_height(wp1); 1781 frame_fix_height(wp2); 1782 n = wp2->w_vsep_width; 1783 wp2->w_vsep_width = wp1->w_vsep_width; 1784 wp1->w_vsep_width = n; 1785 frame_fix_width(wp1); 1786 frame_fix_width(wp2); 1787 1788 // recompute w_winrow and w_wincol for all windows 1789 (void)win_comp_pos(); 1790 } 1791 1792 redraw_all_later(NOT_VALID); 1793 } 1794 1795 /* 1796 * Move the current window to the very top/bottom/left/right of the screen. 1797 */ 1798 static void 1799 win_totop(int size, int flags) 1800 { 1801 int dir; 1802 int height = curwin->w_height; 1803 1804 if (ONE_WINDOW) 1805 { 1806 beep_flush(); 1807 return; 1808 } 1809 if (check_split_disallowed() == FAIL) 1810 return; 1811 1812 // Remove the window and frame from the tree of frames. 1813 (void)winframe_remove(curwin, &dir, NULL); 1814 win_remove(curwin, NULL); 1815 last_status(FALSE); // may need to remove last status line 1816 (void)win_comp_pos(); // recompute window positions 1817 1818 // Split a window on the desired side and put the window there. 1819 (void)win_split_ins(size, flags, curwin, dir); 1820 if (!(flags & WSP_VERT)) 1821 { 1822 win_setheight(height); 1823 if (p_ea) 1824 win_equal(curwin, TRUE, 'v'); 1825 } 1826 1827 #if defined(FEAT_GUI) 1828 // When 'guioptions' includes 'L' or 'R' may have to remove or add 1829 // scrollbars. Have to update them anyway. 1830 gui_may_update_scrollbars(); 1831 #endif 1832 } 1833 1834 /* 1835 * Move window "win1" to below/right of "win2" and make "win1" the current 1836 * window. Only works within the same frame! 1837 */ 1838 void 1839 win_move_after(win_T *win1, win_T *win2) 1840 { 1841 int height; 1842 1843 // check if the arguments are reasonable 1844 if (win1 == win2) 1845 return; 1846 1847 // check if there is something to do 1848 if (win2->w_next != win1) 1849 { 1850 if (win1->w_frame->fr_parent != win2->w_frame->fr_parent) 1851 { 1852 iemsg("INTERNAL: trying to move a window into another frame"); 1853 return; 1854 } 1855 1856 // may need to move the status line/vertical separator of the last 1857 // window 1858 if (win1 == lastwin) 1859 { 1860 height = win1->w_prev->w_status_height; 1861 win1->w_prev->w_status_height = win1->w_status_height; 1862 win1->w_status_height = height; 1863 if (win1->w_prev->w_vsep_width == 1) 1864 { 1865 // Remove the vertical separator from the last-but-one window, 1866 // add it to the last window. Adjust the frame widths. 1867 win1->w_prev->w_vsep_width = 0; 1868 win1->w_prev->w_frame->fr_width -= 1; 1869 win1->w_vsep_width = 1; 1870 win1->w_frame->fr_width += 1; 1871 } 1872 } 1873 else if (win2 == lastwin) 1874 { 1875 height = win1->w_status_height; 1876 win1->w_status_height = win2->w_status_height; 1877 win2->w_status_height = height; 1878 if (win1->w_vsep_width == 1) 1879 { 1880 // Remove the vertical separator from win1, add it to the last 1881 // window, win2. Adjust the frame widths. 1882 win2->w_vsep_width = 1; 1883 win2->w_frame->fr_width += 1; 1884 win1->w_vsep_width = 0; 1885 win1->w_frame->fr_width -= 1; 1886 } 1887 } 1888 win_remove(win1, NULL); 1889 frame_remove(win1->w_frame); 1890 win_append(win2, win1); 1891 frame_append(win2->w_frame, win1->w_frame); 1892 1893 (void)win_comp_pos(); // recompute w_winrow for all windows 1894 redraw_later(NOT_VALID); 1895 } 1896 win_enter(win1, FALSE); 1897 } 1898 1899 /* 1900 * Make all windows the same height. 1901 * 'next_curwin' will soon be the current window, make sure it has enough 1902 * rows. 1903 */ 1904 void 1905 win_equal( 1906 win_T *next_curwin, // pointer to current window to be or NULL 1907 int current, // do only frame with current window 1908 int dir) // 'v' for vertically, 'h' for horizontally, 1909 // 'b' for both, 0 for using p_ead 1910 { 1911 if (dir == 0) 1912 dir = *p_ead; 1913 win_equal_rec(next_curwin == NULL ? curwin : next_curwin, current, 1914 topframe, dir, 0, tabline_height(), 1915 (int)Columns, topframe->fr_height); 1916 } 1917 1918 /* 1919 * Set a frame to a new position and height, spreading the available room 1920 * equally over contained frames. 1921 * The window "next_curwin" (if not NULL) should at least get the size from 1922 * 'winheight' and 'winwidth' if possible. 1923 */ 1924 static void 1925 win_equal_rec( 1926 win_T *next_curwin, // pointer to current window to be or NULL 1927 int current, // do only frame with current window 1928 frame_T *topfr, // frame to set size off 1929 int dir, // 'v', 'h' or 'b', see win_equal() 1930 int col, // horizontal position for frame 1931 int row, // vertical position for frame 1932 int width, // new width of frame 1933 int height) // new height of frame 1934 { 1935 int n, m; 1936 int extra_sep = 0; 1937 int wincount, totwincount = 0; 1938 frame_T *fr; 1939 int next_curwin_size = 0; 1940 int room = 0; 1941 int new_size; 1942 int has_next_curwin = 0; 1943 int hnc; 1944 1945 if (topfr->fr_layout == FR_LEAF) 1946 { 1947 // Set the width/height of this frame. 1948 // Redraw when size or position changes 1949 if (topfr->fr_height != height || topfr->fr_win->w_winrow != row 1950 || topfr->fr_width != width || topfr->fr_win->w_wincol != col 1951 ) 1952 { 1953 topfr->fr_win->w_winrow = row; 1954 frame_new_height(topfr, height, FALSE, FALSE); 1955 topfr->fr_win->w_wincol = col; 1956 frame_new_width(topfr, width, FALSE, FALSE); 1957 redraw_all_later(NOT_VALID); 1958 } 1959 } 1960 else if (topfr->fr_layout == FR_ROW) 1961 { 1962 topfr->fr_width = width; 1963 topfr->fr_height = height; 1964 1965 if (dir != 'v') // equalize frame widths 1966 { 1967 // Compute the maximum number of windows horizontally in this 1968 // frame. 1969 n = frame_minwidth(topfr, NOWIN); 1970 // add one for the rightmost window, it doesn't have a separator 1971 if (col + width == Columns) 1972 extra_sep = 1; 1973 else 1974 extra_sep = 0; 1975 totwincount = (n + extra_sep) / (p_wmw + 1); 1976 has_next_curwin = frame_has_win(topfr, next_curwin); 1977 1978 /* 1979 * Compute width for "next_curwin" window and room available for 1980 * other windows. 1981 * "m" is the minimal width when counting p_wiw for "next_curwin". 1982 */ 1983 m = frame_minwidth(topfr, next_curwin); 1984 room = width - m; 1985 if (room < 0) 1986 { 1987 next_curwin_size = p_wiw + room; 1988 room = 0; 1989 } 1990 else 1991 { 1992 next_curwin_size = -1; 1993 FOR_ALL_FRAMES(fr, topfr->fr_child) 1994 { 1995 // If 'winfixwidth' set keep the window width if 1996 // possible. 1997 // Watch out for this window being the next_curwin. 1998 if (frame_fixed_width(fr)) 1999 { 2000 n = frame_minwidth(fr, NOWIN); 2001 new_size = fr->fr_width; 2002 if (frame_has_win(fr, next_curwin)) 2003 { 2004 room += p_wiw - p_wmw; 2005 next_curwin_size = 0; 2006 if (new_size < p_wiw) 2007 new_size = p_wiw; 2008 } 2009 else 2010 // These windows don't use up room. 2011 totwincount -= (n + (fr->fr_next == NULL 2012 ? extra_sep : 0)) / (p_wmw + 1); 2013 room -= new_size - n; 2014 if (room < 0) 2015 { 2016 new_size += room; 2017 room = 0; 2018 } 2019 fr->fr_newwidth = new_size; 2020 } 2021 } 2022 if (next_curwin_size == -1) 2023 { 2024 if (!has_next_curwin) 2025 next_curwin_size = 0; 2026 else if (totwincount > 1 2027 && (room + (totwincount - 2)) 2028 / (totwincount - 1) > p_wiw) 2029 { 2030 // Can make all windows wider than 'winwidth', spread 2031 // the room equally. 2032 next_curwin_size = (room + p_wiw 2033 + (totwincount - 1) * p_wmw 2034 + (totwincount - 1)) / totwincount; 2035 room -= next_curwin_size - p_wiw; 2036 } 2037 else 2038 next_curwin_size = p_wiw; 2039 } 2040 } 2041 2042 if (has_next_curwin) 2043 --totwincount; // don't count curwin 2044 } 2045 2046 FOR_ALL_FRAMES(fr, topfr->fr_child) 2047 { 2048 wincount = 1; 2049 if (fr->fr_next == NULL) 2050 // last frame gets all that remains (avoid roundoff error) 2051 new_size = width; 2052 else if (dir == 'v') 2053 new_size = fr->fr_width; 2054 else if (frame_fixed_width(fr)) 2055 { 2056 new_size = fr->fr_newwidth; 2057 wincount = 0; // doesn't count as a sizeable window 2058 } 2059 else 2060 { 2061 // Compute the maximum number of windows horiz. in "fr". 2062 n = frame_minwidth(fr, NOWIN); 2063 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 2064 / (p_wmw + 1); 2065 m = frame_minwidth(fr, next_curwin); 2066 if (has_next_curwin) 2067 hnc = frame_has_win(fr, next_curwin); 2068 else 2069 hnc = FALSE; 2070 if (hnc) // don't count next_curwin 2071 --wincount; 2072 if (totwincount == 0) 2073 new_size = room; 2074 else 2075 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 2076 / totwincount; 2077 if (hnc) // add next_curwin size 2078 { 2079 next_curwin_size -= p_wiw - (m - n); 2080 new_size += next_curwin_size; 2081 room -= new_size - next_curwin_size; 2082 } 2083 else 2084 room -= new_size; 2085 new_size += n; 2086 } 2087 2088 // Skip frame that is full width when splitting or closing a 2089 // window, unless equalizing all frames. 2090 if (!current || dir != 'v' || topfr->fr_parent != NULL 2091 || (new_size != fr->fr_width) 2092 || frame_has_win(fr, next_curwin)) 2093 win_equal_rec(next_curwin, current, fr, dir, col, row, 2094 new_size, height); 2095 col += new_size; 2096 width -= new_size; 2097 totwincount -= wincount; 2098 } 2099 } 2100 else // topfr->fr_layout == FR_COL 2101 { 2102 topfr->fr_width = width; 2103 topfr->fr_height = height; 2104 2105 if (dir != 'h') // equalize frame heights 2106 { 2107 // Compute maximum number of windows vertically in this frame. 2108 n = frame_minheight(topfr, NOWIN); 2109 // add one for the bottom window if it doesn't have a statusline 2110 if (row + height == cmdline_row && p_ls == 0) 2111 extra_sep = 1; 2112 else 2113 extra_sep = 0; 2114 totwincount = (n + extra_sep) / (p_wmh + 1); 2115 has_next_curwin = frame_has_win(topfr, next_curwin); 2116 2117 /* 2118 * Compute height for "next_curwin" window and room available for 2119 * other windows. 2120 * "m" is the minimal height when counting p_wh for "next_curwin". 2121 */ 2122 m = frame_minheight(topfr, next_curwin); 2123 room = height - m; 2124 if (room < 0) 2125 { 2126 // The room is less then 'winheight', use all space for the 2127 // current window. 2128 next_curwin_size = p_wh + room; 2129 room = 0; 2130 } 2131 else 2132 { 2133 next_curwin_size = -1; 2134 FOR_ALL_FRAMES(fr, topfr->fr_child) 2135 { 2136 // If 'winfixheight' set keep the window height if 2137 // possible. 2138 // Watch out for this window being the next_curwin. 2139 if (frame_fixed_height(fr)) 2140 { 2141 n = frame_minheight(fr, NOWIN); 2142 new_size = fr->fr_height; 2143 if (frame_has_win(fr, next_curwin)) 2144 { 2145 room += p_wh - p_wmh; 2146 next_curwin_size = 0; 2147 if (new_size < p_wh) 2148 new_size = p_wh; 2149 } 2150 else 2151 // These windows don't use up room. 2152 totwincount -= (n + (fr->fr_next == NULL 2153 ? extra_sep : 0)) / (p_wmh + 1); 2154 room -= new_size - n; 2155 if (room < 0) 2156 { 2157 new_size += room; 2158 room = 0; 2159 } 2160 fr->fr_newheight = new_size; 2161 } 2162 } 2163 if (next_curwin_size == -1) 2164 { 2165 if (!has_next_curwin) 2166 next_curwin_size = 0; 2167 else if (totwincount > 1 2168 && (room + (totwincount - 2)) 2169 / (totwincount - 1) > p_wh) 2170 { 2171 // can make all windows higher than 'winheight', 2172 // spread the room equally. 2173 next_curwin_size = (room + p_wh 2174 + (totwincount - 1) * p_wmh 2175 + (totwincount - 1)) / totwincount; 2176 room -= next_curwin_size - p_wh; 2177 } 2178 else 2179 next_curwin_size = p_wh; 2180 } 2181 } 2182 2183 if (has_next_curwin) 2184 --totwincount; // don't count curwin 2185 } 2186 2187 FOR_ALL_FRAMES(fr, topfr->fr_child) 2188 { 2189 wincount = 1; 2190 if (fr->fr_next == NULL) 2191 // last frame gets all that remains (avoid roundoff error) 2192 new_size = height; 2193 else if (dir == 'h') 2194 new_size = fr->fr_height; 2195 else if (frame_fixed_height(fr)) 2196 { 2197 new_size = fr->fr_newheight; 2198 wincount = 0; // doesn't count as a sizeable window 2199 } 2200 else 2201 { 2202 // Compute the maximum number of windows vert. in "fr". 2203 n = frame_minheight(fr, NOWIN); 2204 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 2205 / (p_wmh + 1); 2206 m = frame_minheight(fr, next_curwin); 2207 if (has_next_curwin) 2208 hnc = frame_has_win(fr, next_curwin); 2209 else 2210 hnc = FALSE; 2211 if (hnc) // don't count next_curwin 2212 --wincount; 2213 if (totwincount == 0) 2214 new_size = room; 2215 else 2216 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 2217 / totwincount; 2218 if (hnc) // add next_curwin size 2219 { 2220 next_curwin_size -= p_wh - (m - n); 2221 new_size += next_curwin_size; 2222 room -= new_size - next_curwin_size; 2223 } 2224 else 2225 room -= new_size; 2226 new_size += n; 2227 } 2228 // Skip frame that is full width when splitting or closing a 2229 // window, unless equalizing all frames. 2230 if (!current || dir != 'h' || topfr->fr_parent != NULL 2231 || (new_size != fr->fr_height) 2232 || frame_has_win(fr, next_curwin)) 2233 win_equal_rec(next_curwin, current, fr, dir, col, row, 2234 width, new_size); 2235 row += new_size; 2236 height -= new_size; 2237 totwincount -= wincount; 2238 } 2239 } 2240 } 2241 2242 #ifdef FEAT_JOB_CHANNEL 2243 static void 2244 leaving_window(win_T *win) 2245 { 2246 // Only matters for a prompt window. 2247 if (!bt_prompt(win->w_buffer)) 2248 return; 2249 2250 // When leaving a prompt window stop Insert mode and perhaps restart 2251 // it when entering that window again. 2252 win->w_buffer->b_prompt_insert = restart_edit; 2253 if (restart_edit != 0 && mode_displayed) 2254 clear_cmdline = TRUE; // unshow mode later 2255 restart_edit = NUL; 2256 2257 // When leaving the window (or closing the window) was done from a 2258 // callback we need to break out of the Insert mode loop and restart Insert 2259 // mode when entering the window again. 2260 if (State & INSERT) 2261 { 2262 stop_insert_mode = TRUE; 2263 if (win->w_buffer->b_prompt_insert == NUL) 2264 win->w_buffer->b_prompt_insert = 'A'; 2265 } 2266 } 2267 2268 void 2269 entering_window(win_T *win) 2270 { 2271 // Only matters for a prompt window. 2272 if (!bt_prompt(win->w_buffer)) 2273 return; 2274 2275 // When switching to a prompt buffer that was in Insert mode, don't stop 2276 // Insert mode, it may have been set in leaving_window(). 2277 if (win->w_buffer->b_prompt_insert != NUL) 2278 stop_insert_mode = FALSE; 2279 2280 // When entering the prompt window restart Insert mode if we were in Insert 2281 // mode when we left it. 2282 restart_edit = win->w_buffer->b_prompt_insert; 2283 } 2284 #endif 2285 2286 /* 2287 * Close all windows for buffer "buf". 2288 */ 2289 void 2290 close_windows( 2291 buf_T *buf, 2292 int keep_curwin) // don't close "curwin" 2293 { 2294 win_T *wp; 2295 tabpage_T *tp, *nexttp; 2296 int h = tabline_height(); 2297 int count = tabpage_index(NULL); 2298 2299 ++RedrawingDisabled; 2300 2301 for (wp = firstwin; wp != NULL && !ONE_WINDOW; ) 2302 { 2303 if (wp->w_buffer == buf && (!keep_curwin || wp != curwin) 2304 && !(wp->w_closing || wp->w_buffer->b_locked > 0)) 2305 { 2306 if (win_close(wp, FALSE) == FAIL) 2307 // If closing the window fails give up, to avoid looping 2308 // forever. 2309 break; 2310 2311 // Start all over, autocommands may change the window layout. 2312 wp = firstwin; 2313 } 2314 else 2315 wp = wp->w_next; 2316 } 2317 2318 // Also check windows in other tab pages. 2319 for (tp = first_tabpage; tp != NULL; tp = nexttp) 2320 { 2321 nexttp = tp->tp_next; 2322 if (tp != curtab) 2323 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 2324 if (wp->w_buffer == buf 2325 && !(wp->w_closing || wp->w_buffer->b_locked > 0)) 2326 { 2327 win_close_othertab(wp, FALSE, tp); 2328 2329 // Start all over, the tab page may be closed and 2330 // autocommands may change the window layout. 2331 nexttp = first_tabpage; 2332 break; 2333 } 2334 } 2335 2336 --RedrawingDisabled; 2337 2338 if (count != tabpage_index(NULL)) 2339 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2340 2341 redraw_tabline = TRUE; 2342 if (h != tabline_height()) 2343 shell_new_rows(); 2344 } 2345 2346 /* 2347 * Return TRUE if the current window is the only window that exists (ignoring 2348 * "aucmd_win"). 2349 * Returns FALSE if there is a window, possibly in another tab page. 2350 */ 2351 static int 2352 last_window(void) 2353 { 2354 return (one_window() && first_tabpage->tp_next == NULL); 2355 } 2356 2357 /* 2358 * Return TRUE if there is only one window other than "aucmd_win" in the 2359 * current tab page. 2360 */ 2361 int 2362 one_window(void) 2363 { 2364 win_T *wp; 2365 int seen_one = FALSE; 2366 2367 FOR_ALL_WINDOWS(wp) 2368 { 2369 if (wp != aucmd_win) 2370 { 2371 if (seen_one) 2372 return FALSE; 2373 seen_one = TRUE; 2374 } 2375 } 2376 return TRUE; 2377 } 2378 2379 /* 2380 * Close the possibly last window in a tab page. 2381 * Returns TRUE when the window was closed already. 2382 */ 2383 static int 2384 close_last_window_tabpage( 2385 win_T *win, 2386 int free_buf, 2387 tabpage_T *prev_curtab) 2388 { 2389 if (ONE_WINDOW) 2390 { 2391 buf_T *old_curbuf = curbuf; 2392 2393 /* 2394 * Closing the last window in a tab page. First go to another tab 2395 * page and then close the window and the tab page. This avoids that 2396 * curwin and curtab are invalid while we are freeing memory, they may 2397 * be used in GUI events. 2398 * Don't trigger autocommands yet, they may use wrong values, so do 2399 * that below. 2400 */ 2401 goto_tabpage_tp(alt_tabpage(), FALSE, TRUE); 2402 redraw_tabline = TRUE; 2403 2404 // Safety check: Autocommands may have closed the window when jumping 2405 // to the other tab page. 2406 if (valid_tabpage(prev_curtab) && prev_curtab->tp_firstwin == win) 2407 { 2408 int h = tabline_height(); 2409 2410 win_close_othertab(win, free_buf, prev_curtab); 2411 if (h != tabline_height()) 2412 shell_new_rows(); 2413 } 2414 #ifdef FEAT_JOB_CHANNEL 2415 entering_window(curwin); 2416 #endif 2417 // Since goto_tabpage_tp above did not trigger *Enter autocommands, do 2418 // that now. 2419 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2420 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 2421 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 2422 if (old_curbuf != curbuf) 2423 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2424 return TRUE; 2425 } 2426 return FALSE; 2427 } 2428 2429 /* 2430 * Close the buffer of "win" and unload it if "action" is DOBUF_UNLOAD. 2431 * "action" can also be zero (do nothing) or DOBUF_WIPE. 2432 * "abort_if_last" is passed to close_buffer(): abort closing if all other 2433 * windows are closed. 2434 */ 2435 static void 2436 win_close_buffer(win_T *win, int action, int abort_if_last) 2437 { 2438 #ifdef FEAT_SYN_HL 2439 // Free independent synblock before the buffer is freed. 2440 if (win->w_buffer != NULL) 2441 reset_synblock(win); 2442 #endif 2443 2444 #ifdef FEAT_QUICKFIX 2445 // When the quickfix/location list window is closed, unlist the buffer. 2446 if (win->w_buffer != NULL && bt_quickfix(win->w_buffer)) 2447 win->w_buffer->b_p_bl = FALSE; 2448 #endif 2449 2450 // Close the link to the buffer. 2451 if (win->w_buffer != NULL) 2452 { 2453 bufref_T bufref; 2454 2455 set_bufref(&bufref, curbuf); 2456 win->w_closing = TRUE; 2457 close_buffer(win, win->w_buffer, action, abort_if_last, FALSE); 2458 if (win_valid_any_tab(win)) 2459 win->w_closing = FALSE; 2460 // Make sure curbuf is valid. It can become invalid if 'bufhidden' is 2461 // "wipe". 2462 if (!bufref_valid(&bufref)) 2463 curbuf = firstbuf; 2464 } 2465 } 2466 2467 /* 2468 * Close window "win". Only works for the current tab page. 2469 * If "free_buf" is TRUE related buffer may be unloaded. 2470 * 2471 * Called by :quit, :close, :xit, :wq and findtag(). 2472 * Returns FAIL when the window was not closed. 2473 */ 2474 int 2475 win_close(win_T *win, int free_buf) 2476 { 2477 win_T *wp; 2478 int other_buffer = FALSE; 2479 int close_curwin = FALSE; 2480 int dir; 2481 int help_window = FALSE; 2482 tabpage_T *prev_curtab = curtab; 2483 frame_T *win_frame = win->w_frame->fr_parent; 2484 #ifdef FEAT_DIFF 2485 int had_diffmode = win->w_p_diff; 2486 #endif 2487 #ifdef MESSAGE_QUEUE 2488 int did_decrement = FALSE; 2489 #endif 2490 2491 #if defined(FEAT_TERMINAL) && defined(FEAT_PROP_POPUP) 2492 // Can close a popup window with a terminal if the job has finished. 2493 if (may_close_term_popup() == OK) 2494 return OK; 2495 #endif 2496 if (ERROR_IF_ANY_POPUP_WINDOW) 2497 return FAIL; 2498 2499 if (last_window()) 2500 { 2501 emsg(_("E444: Cannot close last window")); 2502 return FAIL; 2503 } 2504 2505 if (win->w_closing || (win->w_buffer != NULL 2506 && win->w_buffer->b_locked > 0)) 2507 return FAIL; // window is already being closed 2508 if (win_unlisted(win)) 2509 { 2510 emsg(_(e_autocmd_close)); 2511 return FAIL; 2512 } 2513 if ((firstwin == aucmd_win || lastwin == aucmd_win) && one_window()) 2514 { 2515 emsg(_("E814: Cannot close window, only autocmd window would remain")); 2516 return FAIL; 2517 } 2518 2519 // When closing the last window in a tab page first go to another tab page 2520 // and then close the window and the tab page to avoid that curwin and 2521 // curtab are invalid while we are freeing memory. 2522 if (close_last_window_tabpage(win, free_buf, prev_curtab)) 2523 return FAIL; 2524 2525 // When closing the help window, try restoring a snapshot after closing 2526 // the window. Otherwise clear the snapshot, it's now invalid. 2527 if (bt_help(win->w_buffer)) 2528 help_window = TRUE; 2529 else 2530 clear_snapshot(curtab, SNAP_HELP_IDX); 2531 2532 if (win == curwin) 2533 { 2534 #ifdef FEAT_JOB_CHANNEL 2535 leaving_window(curwin); 2536 #endif 2537 /* 2538 * Guess which window is going to be the new current window. 2539 * This may change because of the autocommands (sigh). 2540 */ 2541 wp = frame2win(win_altframe(win, NULL)); 2542 2543 /* 2544 * Be careful: If autocommands delete the window or cause this window 2545 * to be the last one left, return now. 2546 */ 2547 if (wp->w_buffer != curbuf) 2548 { 2549 other_buffer = TRUE; 2550 win->w_closing = TRUE; 2551 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 2552 if (!win_valid(win)) 2553 return FAIL; 2554 win->w_closing = FALSE; 2555 if (last_window()) 2556 return FAIL; 2557 } 2558 win->w_closing = TRUE; 2559 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 2560 if (!win_valid(win)) 2561 return FAIL; 2562 win->w_closing = FALSE; 2563 if (last_window()) 2564 return FAIL; 2565 #ifdef FEAT_EVAL 2566 // autocmds may abort script processing 2567 if (aborting()) 2568 return FAIL; 2569 #endif 2570 } 2571 2572 #ifdef FEAT_GUI 2573 // Avoid trouble with scrollbars that are going to be deleted in 2574 // win_free(). 2575 if (gui.in_use) 2576 out_flush(); 2577 #endif 2578 2579 #ifdef FEAT_PROP_POPUP 2580 if (popup_win_closed(win) && !win_valid(win)) 2581 return FAIL; 2582 #endif 2583 win_close_buffer(win, free_buf ? DOBUF_UNLOAD : 0, TRUE); 2584 2585 if (only_one_window() && win_valid(win) && win->w_buffer == NULL 2586 && (last_window() || curtab != prev_curtab 2587 || close_last_window_tabpage(win, free_buf, prev_curtab))) 2588 { 2589 // Autocommands have closed all windows, quit now. Restore 2590 // curwin->w_buffer, otherwise writing viminfo may fail. 2591 if (curwin->w_buffer == NULL) 2592 curwin->w_buffer = curbuf; 2593 getout(0); 2594 } 2595 2596 // Autocommands may have moved to another tab page. 2597 if (curtab != prev_curtab && win_valid_any_tab(win) 2598 && win->w_buffer == NULL) 2599 { 2600 // Need to close the window anyway, since the buffer is NULL. 2601 win_close_othertab(win, FALSE, prev_curtab); 2602 return FAIL; 2603 } 2604 2605 // Autocommands may have closed the window already or closed the only 2606 // other window. 2607 if (!win_valid(win) || last_window() 2608 || close_last_window_tabpage(win, free_buf, prev_curtab)) 2609 return FAIL; 2610 2611 // Now we are really going to close the window. Disallow any autocommand 2612 // to split a window to avoid trouble. 2613 // Also bail out of parse_queued_messages() to avoid it tries to update the 2614 // screen. 2615 ++split_disallowed; 2616 #ifdef MESSAGE_QUEUE 2617 ++dont_parse_messages; 2618 #endif 2619 2620 // Free the memory used for the window and get the window that received 2621 // the screen space. 2622 wp = win_free_mem(win, &dir, NULL); 2623 2624 // Make sure curwin isn't invalid. It can cause severe trouble when 2625 // printing an error message. For win_equal() curbuf needs to be valid 2626 // too. 2627 if (win == curwin) 2628 { 2629 curwin = wp; 2630 #ifdef FEAT_QUICKFIX 2631 if (wp->w_p_pvw || bt_quickfix(wp->w_buffer)) 2632 { 2633 /* 2634 * If the cursor goes to the preview or the quickfix window, try 2635 * finding another window to go to. 2636 */ 2637 for (;;) 2638 { 2639 if (wp->w_next == NULL) 2640 wp = firstwin; 2641 else 2642 wp = wp->w_next; 2643 if (wp == curwin) 2644 break; 2645 if (!wp->w_p_pvw && !bt_quickfix(wp->w_buffer)) 2646 { 2647 curwin = wp; 2648 break; 2649 } 2650 } 2651 } 2652 #endif 2653 curbuf = curwin->w_buffer; 2654 close_curwin = TRUE; 2655 2656 // The cursor position may be invalid if the buffer changed after last 2657 // using the window. 2658 check_cursor(); 2659 } 2660 if (p_ea && (*p_ead == 'b' || *p_ead == dir)) 2661 // If the frame of the closed window contains the new current window, 2662 // only resize that frame. Otherwise resize all windows. 2663 win_equal(curwin, curwin->w_frame->fr_parent == win_frame, dir); 2664 else 2665 win_comp_pos(); 2666 if (close_curwin) 2667 { 2668 // Pass WEE_ALLOW_PARSE_MESSAGES to decrement dont_parse_messages 2669 // before autocommands. 2670 #ifdef MESSAGE_QUEUE 2671 did_decrement = 2672 #else 2673 (void) 2674 #endif 2675 win_enter_ext(wp, 2676 WEE_CURWIN_INVALID | WEE_TRIGGER_ENTER_AUTOCMDS 2677 | WEE_TRIGGER_LEAVE_AUTOCMDS | WEE_ALLOW_PARSE_MESSAGES); 2678 if (other_buffer) 2679 // careful: after this wp and win may be invalid! 2680 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2681 } 2682 2683 --split_disallowed; 2684 #ifdef MESSAGE_QUEUE 2685 if (!did_decrement) 2686 --dont_parse_messages; 2687 #endif 2688 2689 /* 2690 * If last window has a status line now and we don't want one, 2691 * remove the status line. 2692 */ 2693 last_status(FALSE); 2694 2695 // After closing the help window, try restoring the window layout from 2696 // before it was opened. 2697 if (help_window) 2698 restore_snapshot(SNAP_HELP_IDX, close_curwin); 2699 2700 #ifdef FEAT_DIFF 2701 // If the window had 'diff' set and now there is only one window left in 2702 // the tab page with 'diff' set, and "closeoff" is in 'diffopt', then 2703 // execute ":diffoff!". 2704 if (diffopt_closeoff() && had_diffmode && curtab == prev_curtab) 2705 { 2706 int diffcount = 0; 2707 win_T *dwin; 2708 2709 FOR_ALL_WINDOWS(dwin) 2710 if (dwin->w_p_diff) 2711 ++diffcount; 2712 if (diffcount == 1) 2713 do_cmdline_cmd((char_u *)"diffoff!"); 2714 } 2715 #endif 2716 2717 #if defined(FEAT_GUI) 2718 // When 'guioptions' includes 'L' or 'R' may have to remove scrollbars. 2719 if (gui.in_use && !win_hasvertsplit()) 2720 gui_init_which_components(NULL); 2721 #endif 2722 2723 redraw_all_later(NOT_VALID); 2724 return OK; 2725 } 2726 2727 /* 2728 * Close window "win" in tab page "tp", which is not the current tab page. 2729 * This may be the last window in that tab page and result in closing the tab, 2730 * thus "tp" may become invalid! 2731 * Caller must check if buffer is hidden and whether the tabline needs to be 2732 * updated. 2733 */ 2734 void 2735 win_close_othertab(win_T *win, int free_buf, tabpage_T *tp) 2736 { 2737 win_T *wp; 2738 int dir; 2739 tabpage_T *ptp = NULL; 2740 int free_tp = FALSE; 2741 2742 // Get here with win->w_buffer == NULL when win_close() detects the tab 2743 // page changed. 2744 if (win->w_closing || (win->w_buffer != NULL 2745 && win->w_buffer->b_locked > 0)) 2746 return; // window is already being closed 2747 2748 if (win->w_buffer != NULL) 2749 // Close the link to the buffer. 2750 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, 2751 FALSE, FALSE); 2752 2753 // Careful: Autocommands may have closed the tab page or made it the 2754 // current tab page. 2755 for (ptp = first_tabpage; ptp != NULL && ptp != tp; ptp = ptp->tp_next) 2756 ; 2757 if (ptp == NULL || tp == curtab) 2758 return; 2759 2760 // Autocommands may have closed the window already. 2761 for (wp = tp->tp_firstwin; wp != NULL && wp != win; wp = wp->w_next) 2762 ; 2763 if (wp == NULL) 2764 return; 2765 2766 // When closing the last window in a tab page remove the tab page. 2767 if (tp->tp_firstwin == tp->tp_lastwin) 2768 { 2769 if (tp == first_tabpage) 2770 first_tabpage = tp->tp_next; 2771 else 2772 { 2773 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tp; 2774 ptp = ptp->tp_next) 2775 ; 2776 if (ptp == NULL) 2777 { 2778 internal_error("win_close_othertab()"); 2779 return; 2780 } 2781 ptp->tp_next = tp->tp_next; 2782 } 2783 free_tp = TRUE; 2784 } 2785 2786 // Free the memory used for the window. 2787 win_free_mem(win, &dir, tp); 2788 2789 if (free_tp) 2790 free_tabpage(tp); 2791 } 2792 2793 /* 2794 * Free the memory used for a window. 2795 * Returns a pointer to the window that got the freed up space. 2796 */ 2797 static win_T * 2798 win_free_mem( 2799 win_T *win, 2800 int *dirp, // set to 'v' or 'h' for direction if 'ea' 2801 tabpage_T *tp) // tab page "win" is in, NULL for current 2802 { 2803 frame_T *frp; 2804 win_T *wp; 2805 tabpage_T *win_tp = tp == NULL ? curtab : tp; 2806 2807 // Remove the window and its frame from the tree of frames. 2808 frp = win->w_frame; 2809 wp = winframe_remove(win, dirp, tp); 2810 vim_free(frp); 2811 win_free(win, tp); 2812 2813 // When deleting the current window in the tab, select a new current 2814 // window. 2815 if (win == win_tp->tp_curwin) 2816 win_tp->tp_curwin = wp; 2817 2818 return wp; 2819 } 2820 2821 #if defined(EXITFREE) || defined(PROTO) 2822 void 2823 win_free_all(void) 2824 { 2825 int dummy; 2826 2827 while (first_tabpage->tp_next != NULL) 2828 tabpage_close(TRUE); 2829 2830 if (aucmd_win != NULL) 2831 { 2832 (void)win_free_mem(aucmd_win, &dummy, NULL); 2833 aucmd_win = NULL; 2834 } 2835 2836 while (firstwin != NULL) 2837 (void)win_free_mem(firstwin, &dummy, NULL); 2838 2839 // No window should be used after this. Set curwin to NULL to crash 2840 // instead of using freed memory. 2841 curwin = NULL; 2842 } 2843 #endif 2844 2845 /* 2846 * Remove a window and its frame from the tree of frames. 2847 * Returns a pointer to the window that got the freed up space. 2848 */ 2849 win_T * 2850 winframe_remove( 2851 win_T *win, 2852 int *dirp UNUSED, // set to 'v' or 'h' for direction if 'ea' 2853 tabpage_T *tp) // tab page "win" is in, NULL for current 2854 { 2855 frame_T *frp, *frp2, *frp3; 2856 frame_T *frp_close = win->w_frame; 2857 win_T *wp; 2858 2859 /* 2860 * If there is only one window there is nothing to remove. 2861 */ 2862 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 2863 return NULL; 2864 2865 /* 2866 * Remove the window from its frame. 2867 */ 2868 frp2 = win_altframe(win, tp); 2869 wp = frame2win(frp2); 2870 2871 // Remove this frame from the list of frames. 2872 frame_remove(frp_close); 2873 2874 if (frp_close->fr_parent->fr_layout == FR_COL) 2875 { 2876 // When 'winfixheight' is set, try to find another frame in the column 2877 // (as close to the closed frame as possible) to distribute the height 2878 // to. 2879 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfh) 2880 { 2881 frp = frp_close->fr_prev; 2882 frp3 = frp_close->fr_next; 2883 while (frp != NULL || frp3 != NULL) 2884 { 2885 if (frp != NULL) 2886 { 2887 if (!frame_fixed_height(frp)) 2888 { 2889 frp2 = frp; 2890 wp = frame2win(frp2); 2891 break; 2892 } 2893 frp = frp->fr_prev; 2894 } 2895 if (frp3 != NULL) 2896 { 2897 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfh) 2898 { 2899 frp2 = frp3; 2900 wp = frp3->fr_win; 2901 break; 2902 } 2903 frp3 = frp3->fr_next; 2904 } 2905 } 2906 } 2907 frame_new_height(frp2, frp2->fr_height + frp_close->fr_height, 2908 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2909 *dirp = 'v'; 2910 } 2911 else 2912 { 2913 // When 'winfixwidth' is set, try to find another frame in the column 2914 // (as close to the closed frame as possible) to distribute the width 2915 // to. 2916 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfw) 2917 { 2918 frp = frp_close->fr_prev; 2919 frp3 = frp_close->fr_next; 2920 while (frp != NULL || frp3 != NULL) 2921 { 2922 if (frp != NULL) 2923 { 2924 if (!frame_fixed_width(frp)) 2925 { 2926 frp2 = frp; 2927 wp = frame2win(frp2); 2928 break; 2929 } 2930 frp = frp->fr_prev; 2931 } 2932 if (frp3 != NULL) 2933 { 2934 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfw) 2935 { 2936 frp2 = frp3; 2937 wp = frp3->fr_win; 2938 break; 2939 } 2940 frp3 = frp3->fr_next; 2941 } 2942 } 2943 } 2944 frame_new_width(frp2, frp2->fr_width + frp_close->fr_width, 2945 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2946 *dirp = 'h'; 2947 } 2948 2949 // If rows/columns go to a window below/right its positions need to be 2950 // updated. Can only be done after the sizes have been updated. 2951 if (frp2 == frp_close->fr_next) 2952 { 2953 int row = win->w_winrow; 2954 int col = win->w_wincol; 2955 2956 frame_comp_pos(frp2, &row, &col); 2957 } 2958 2959 if (frp2->fr_next == NULL && frp2->fr_prev == NULL) 2960 { 2961 // There is no other frame in this list, move its info to the parent 2962 // and remove it. 2963 frp2->fr_parent->fr_layout = frp2->fr_layout; 2964 frp2->fr_parent->fr_child = frp2->fr_child; 2965 FOR_ALL_FRAMES(frp, frp2->fr_child) 2966 frp->fr_parent = frp2->fr_parent; 2967 frp2->fr_parent->fr_win = frp2->fr_win; 2968 if (frp2->fr_win != NULL) 2969 frp2->fr_win->w_frame = frp2->fr_parent; 2970 frp = frp2->fr_parent; 2971 if (topframe->fr_child == frp2) 2972 topframe->fr_child = frp; 2973 vim_free(frp2); 2974 2975 frp2 = frp->fr_parent; 2976 if (frp2 != NULL && frp2->fr_layout == frp->fr_layout) 2977 { 2978 // The frame above the parent has the same layout, have to merge 2979 // the frames into this list. 2980 if (frp2->fr_child == frp) 2981 frp2->fr_child = frp->fr_child; 2982 frp->fr_child->fr_prev = frp->fr_prev; 2983 if (frp->fr_prev != NULL) 2984 frp->fr_prev->fr_next = frp->fr_child; 2985 for (frp3 = frp->fr_child; ; frp3 = frp3->fr_next) 2986 { 2987 frp3->fr_parent = frp2; 2988 if (frp3->fr_next == NULL) 2989 { 2990 frp3->fr_next = frp->fr_next; 2991 if (frp->fr_next != NULL) 2992 frp->fr_next->fr_prev = frp3; 2993 break; 2994 } 2995 } 2996 if (topframe->fr_child == frp) 2997 topframe->fr_child = frp2; 2998 vim_free(frp); 2999 } 3000 } 3001 3002 return wp; 3003 } 3004 3005 /* 3006 * Return a pointer to the frame that will receive the empty screen space that 3007 * is left over after "win" is closed. 3008 * 3009 * If 'splitbelow' or 'splitright' is set, the space goes above or to the left 3010 * by default. Otherwise, the free space goes below or to the right. The 3011 * result is that opening a window and then immediately closing it will 3012 * preserve the initial window layout. The 'wfh' and 'wfw' settings are 3013 * respected when possible. 3014 */ 3015 static frame_T * 3016 win_altframe( 3017 win_T *win, 3018 tabpage_T *tp) // tab page "win" is in, NULL for current 3019 { 3020 frame_T *frp; 3021 frame_T *other_fr, *target_fr; 3022 3023 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 3024 return alt_tabpage()->tp_curwin->w_frame; 3025 3026 frp = win->w_frame; 3027 3028 if (frp->fr_prev == NULL) 3029 return frp->fr_next; 3030 if (frp->fr_next == NULL) 3031 return frp->fr_prev; 3032 3033 // By default the next window will get the space that was abandoned by this 3034 // window 3035 target_fr = frp->fr_next; 3036 other_fr = frp->fr_prev; 3037 3038 // If this is part of a column of windows and 'splitbelow' is true then the 3039 // previous window will get the space. 3040 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_COL && p_sb) 3041 { 3042 target_fr = frp->fr_prev; 3043 other_fr = frp->fr_next; 3044 } 3045 3046 // If this is part of a row of windows, and 'splitright' is true then the 3047 // previous window will get the space. 3048 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW && p_spr) 3049 { 3050 target_fr = frp->fr_prev; 3051 other_fr = frp->fr_next; 3052 } 3053 3054 // If 'wfh' or 'wfw' is set for the target and not for the alternate 3055 // window, reverse the selection. 3056 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW) 3057 { 3058 if (frame_fixed_width(target_fr) && !frame_fixed_width(other_fr)) 3059 target_fr = other_fr; 3060 } 3061 else 3062 { 3063 if (frame_fixed_height(target_fr) && !frame_fixed_height(other_fr)) 3064 target_fr = other_fr; 3065 } 3066 3067 return target_fr; 3068 } 3069 3070 /* 3071 * Return the tabpage that will be used if the current one is closed. 3072 */ 3073 static tabpage_T * 3074 alt_tabpage(void) 3075 { 3076 tabpage_T *tp; 3077 3078 // Use the next tab page if possible. 3079 if (curtab->tp_next != NULL) 3080 return curtab->tp_next; 3081 3082 // Find the last but one tab page. 3083 for (tp = first_tabpage; tp->tp_next != curtab; tp = tp->tp_next) 3084 ; 3085 return tp; 3086 } 3087 3088 /* 3089 * Find the left-upper window in frame "frp". 3090 */ 3091 static win_T * 3092 frame2win(frame_T *frp) 3093 { 3094 while (frp->fr_win == NULL) 3095 frp = frp->fr_child; 3096 return frp->fr_win; 3097 } 3098 3099 /* 3100 * Return TRUE if frame "frp" contains window "wp". 3101 */ 3102 static int 3103 frame_has_win(frame_T *frp, win_T *wp) 3104 { 3105 frame_T *p; 3106 3107 if (frp->fr_layout == FR_LEAF) 3108 return frp->fr_win == wp; 3109 3110 FOR_ALL_FRAMES(p, frp->fr_child) 3111 if (frame_has_win(p, wp)) 3112 return TRUE; 3113 return FALSE; 3114 } 3115 3116 /* 3117 * Set a new height for a frame. Recursively sets the height for contained 3118 * frames and windows. Caller must take care of positions. 3119 */ 3120 static void 3121 frame_new_height( 3122 frame_T *topfrp, 3123 int height, 3124 int topfirst, // resize topmost contained frame first 3125 int wfh) // obey 'winfixheight' when there is a choice; 3126 // may cause the height not to be set 3127 { 3128 frame_T *frp; 3129 int extra_lines; 3130 int h; 3131 3132 if (topfrp->fr_win != NULL) 3133 { 3134 // Simple case: just one window. 3135 win_new_height(topfrp->fr_win, 3136 height - topfrp->fr_win->w_status_height 3137 - WINBAR_HEIGHT(topfrp->fr_win)); 3138 } 3139 else if (topfrp->fr_layout == FR_ROW) 3140 { 3141 do 3142 { 3143 // All frames in this row get the same new height. 3144 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3145 { 3146 frame_new_height(frp, height, topfirst, wfh); 3147 if (frp->fr_height > height) 3148 { 3149 // Could not fit the windows, make the whole row higher. 3150 height = frp->fr_height; 3151 break; 3152 } 3153 } 3154 } 3155 while (frp != NULL); 3156 } 3157 else // fr_layout == FR_COL 3158 { 3159 // Complicated case: Resize a column of frames. Resize the bottom 3160 // frame first, frames above that when needed. 3161 3162 frp = topfrp->fr_child; 3163 if (wfh) 3164 // Advance past frames with one window with 'wfh' set. 3165 while (frame_fixed_height(frp)) 3166 { 3167 frp = frp->fr_next; 3168 if (frp == NULL) 3169 return; // no frame without 'wfh', give up 3170 } 3171 if (!topfirst) 3172 { 3173 // Find the bottom frame of this column 3174 while (frp->fr_next != NULL) 3175 frp = frp->fr_next; 3176 if (wfh) 3177 // Advance back for frames with one window with 'wfh' set. 3178 while (frame_fixed_height(frp)) 3179 frp = frp->fr_prev; 3180 } 3181 3182 extra_lines = height - topfrp->fr_height; 3183 if (extra_lines < 0) 3184 { 3185 // reduce height of contained frames, bottom or top frame first 3186 while (frp != NULL) 3187 { 3188 h = frame_minheight(frp, NULL); 3189 if (frp->fr_height + extra_lines < h) 3190 { 3191 extra_lines += frp->fr_height - h; 3192 frame_new_height(frp, h, topfirst, wfh); 3193 } 3194 else 3195 { 3196 frame_new_height(frp, frp->fr_height + extra_lines, 3197 topfirst, wfh); 3198 break; 3199 } 3200 if (topfirst) 3201 { 3202 do 3203 frp = frp->fr_next; 3204 while (wfh && frp != NULL && frame_fixed_height(frp)); 3205 } 3206 else 3207 { 3208 do 3209 frp = frp->fr_prev; 3210 while (wfh && frp != NULL && frame_fixed_height(frp)); 3211 } 3212 // Increase "height" if we could not reduce enough frames. 3213 if (frp == NULL) 3214 height -= extra_lines; 3215 } 3216 } 3217 else if (extra_lines > 0) 3218 { 3219 // increase height of bottom or top frame 3220 frame_new_height(frp, frp->fr_height + extra_lines, topfirst, wfh); 3221 } 3222 } 3223 topfrp->fr_height = height; 3224 } 3225 3226 /* 3227 * Return TRUE if height of frame "frp" should not be changed because of 3228 * the 'winfixheight' option. 3229 */ 3230 static int 3231 frame_fixed_height(frame_T *frp) 3232 { 3233 // frame with one window: fixed height if 'winfixheight' set. 3234 if (frp->fr_win != NULL) 3235 return frp->fr_win->w_p_wfh; 3236 3237 if (frp->fr_layout == FR_ROW) 3238 { 3239 // The frame is fixed height if one of the frames in the row is fixed 3240 // height. 3241 FOR_ALL_FRAMES(frp, frp->fr_child) 3242 if (frame_fixed_height(frp)) 3243 return TRUE; 3244 return FALSE; 3245 } 3246 3247 // frp->fr_layout == FR_COL: The frame is fixed height if all of the 3248 // frames in the row are fixed height. 3249 FOR_ALL_FRAMES(frp, frp->fr_child) 3250 if (!frame_fixed_height(frp)) 3251 return FALSE; 3252 return TRUE; 3253 } 3254 3255 /* 3256 * Return TRUE if width of frame "frp" should not be changed because of 3257 * the 'winfixwidth' option. 3258 */ 3259 static int 3260 frame_fixed_width(frame_T *frp) 3261 { 3262 // frame with one window: fixed width if 'winfixwidth' set. 3263 if (frp->fr_win != NULL) 3264 return frp->fr_win->w_p_wfw; 3265 3266 if (frp->fr_layout == FR_COL) 3267 { 3268 // The frame is fixed width if one of the frames in the row is fixed 3269 // width. 3270 FOR_ALL_FRAMES(frp, frp->fr_child) 3271 if (frame_fixed_width(frp)) 3272 return TRUE; 3273 return FALSE; 3274 } 3275 3276 // frp->fr_layout == FR_ROW: The frame is fixed width if all of the 3277 // frames in the row are fixed width. 3278 FOR_ALL_FRAMES(frp, frp->fr_child) 3279 if (!frame_fixed_width(frp)) 3280 return FALSE; 3281 return TRUE; 3282 } 3283 3284 /* 3285 * Add a status line to windows at the bottom of "frp". 3286 * Note: Does not check if there is room! 3287 */ 3288 static void 3289 frame_add_statusline(frame_T *frp) 3290 { 3291 win_T *wp; 3292 3293 if (frp->fr_layout == FR_LEAF) 3294 { 3295 wp = frp->fr_win; 3296 if (wp->w_status_height == 0) 3297 { 3298 if (wp->w_height > 0) // don't make it negative 3299 --wp->w_height; 3300 wp->w_status_height = STATUS_HEIGHT; 3301 } 3302 } 3303 else if (frp->fr_layout == FR_ROW) 3304 { 3305 // Handle all the frames in the row. 3306 FOR_ALL_FRAMES(frp, frp->fr_child) 3307 frame_add_statusline(frp); 3308 } 3309 else // frp->fr_layout == FR_COL 3310 { 3311 // Only need to handle the last frame in the column. 3312 for (frp = frp->fr_child; frp->fr_next != NULL; frp = frp->fr_next) 3313 ; 3314 frame_add_statusline(frp); 3315 } 3316 } 3317 3318 /* 3319 * Set width of a frame. Handles recursively going through contained frames. 3320 * May remove separator line for windows at the right side (for win_close()). 3321 */ 3322 static void 3323 frame_new_width( 3324 frame_T *topfrp, 3325 int width, 3326 int leftfirst, // resize leftmost contained frame first 3327 int wfw) // obey 'winfixwidth' when there is a choice; 3328 // may cause the width not to be set 3329 { 3330 frame_T *frp; 3331 int extra_cols; 3332 int w; 3333 win_T *wp; 3334 3335 if (topfrp->fr_layout == FR_LEAF) 3336 { 3337 // Simple case: just one window. 3338 wp = topfrp->fr_win; 3339 // Find out if there are any windows right of this one. 3340 for (frp = topfrp; frp->fr_parent != NULL; frp = frp->fr_parent) 3341 if (frp->fr_parent->fr_layout == FR_ROW && frp->fr_next != NULL) 3342 break; 3343 if (frp->fr_parent == NULL) 3344 wp->w_vsep_width = 0; 3345 win_new_width(wp, width - wp->w_vsep_width); 3346 } 3347 else if (topfrp->fr_layout == FR_COL) 3348 { 3349 do 3350 { 3351 // All frames in this column get the same new width. 3352 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3353 { 3354 frame_new_width(frp, width, leftfirst, wfw); 3355 if (frp->fr_width > width) 3356 { 3357 // Could not fit the windows, make whole column wider. 3358 width = frp->fr_width; 3359 break; 3360 } 3361 } 3362 } while (frp != NULL); 3363 } 3364 else // fr_layout == FR_ROW 3365 { 3366 // Complicated case: Resize a row of frames. Resize the rightmost 3367 // frame first, frames left of it when needed. 3368 3369 frp = topfrp->fr_child; 3370 if (wfw) 3371 // Advance past frames with one window with 'wfw' set. 3372 while (frame_fixed_width(frp)) 3373 { 3374 frp = frp->fr_next; 3375 if (frp == NULL) 3376 return; // no frame without 'wfw', give up 3377 } 3378 if (!leftfirst) 3379 { 3380 // Find the rightmost frame of this row 3381 while (frp->fr_next != NULL) 3382 frp = frp->fr_next; 3383 if (wfw) 3384 // Advance back for frames with one window with 'wfw' set. 3385 while (frame_fixed_width(frp)) 3386 frp = frp->fr_prev; 3387 } 3388 3389 extra_cols = width - topfrp->fr_width; 3390 if (extra_cols < 0) 3391 { 3392 // reduce frame width, rightmost frame first 3393 while (frp != NULL) 3394 { 3395 w = frame_minwidth(frp, NULL); 3396 if (frp->fr_width + extra_cols < w) 3397 { 3398 extra_cols += frp->fr_width - w; 3399 frame_new_width(frp, w, leftfirst, wfw); 3400 } 3401 else 3402 { 3403 frame_new_width(frp, frp->fr_width + extra_cols, 3404 leftfirst, wfw); 3405 break; 3406 } 3407 if (leftfirst) 3408 { 3409 do 3410 frp = frp->fr_next; 3411 while (wfw && frp != NULL && frame_fixed_width(frp)); 3412 } 3413 else 3414 { 3415 do 3416 frp = frp->fr_prev; 3417 while (wfw && frp != NULL && frame_fixed_width(frp)); 3418 } 3419 // Increase "width" if we could not reduce enough frames. 3420 if (frp == NULL) 3421 width -= extra_cols; 3422 } 3423 } 3424 else if (extra_cols > 0) 3425 { 3426 // increase width of rightmost frame 3427 frame_new_width(frp, frp->fr_width + extra_cols, leftfirst, wfw); 3428 } 3429 } 3430 topfrp->fr_width = width; 3431 } 3432 3433 /* 3434 * Add the vertical separator to windows at the right side of "frp". 3435 * Note: Does not check if there is room! 3436 */ 3437 static void 3438 frame_add_vsep(frame_T *frp) 3439 { 3440 win_T *wp; 3441 3442 if (frp->fr_layout == FR_LEAF) 3443 { 3444 wp = frp->fr_win; 3445 if (wp->w_vsep_width == 0) 3446 { 3447 if (wp->w_width > 0) // don't make it negative 3448 --wp->w_width; 3449 wp->w_vsep_width = 1; 3450 } 3451 } 3452 else if (frp->fr_layout == FR_COL) 3453 { 3454 // Handle all the frames in the column. 3455 FOR_ALL_FRAMES(frp, frp->fr_child) 3456 frame_add_vsep(frp); 3457 } 3458 else // frp->fr_layout == FR_ROW 3459 { 3460 // Only need to handle the last frame in the row. 3461 frp = frp->fr_child; 3462 while (frp->fr_next != NULL) 3463 frp = frp->fr_next; 3464 frame_add_vsep(frp); 3465 } 3466 } 3467 3468 /* 3469 * Set frame width from the window it contains. 3470 */ 3471 static void 3472 frame_fix_width(win_T *wp) 3473 { 3474 wp->w_frame->fr_width = wp->w_width + wp->w_vsep_width; 3475 } 3476 3477 /* 3478 * Set frame height from the window it contains. 3479 */ 3480 static void 3481 frame_fix_height(win_T *wp) 3482 { 3483 wp->w_frame->fr_height = VISIBLE_HEIGHT(wp) + wp->w_status_height; 3484 } 3485 3486 /* 3487 * Compute the minimal height for frame "topfrp". 3488 * Uses the 'winminheight' option. 3489 * When "next_curwin" isn't NULL, use p_wh for this window. 3490 * When "next_curwin" is NOWIN, don't use at least one line for the current 3491 * window. 3492 */ 3493 static int 3494 frame_minheight(frame_T *topfrp, win_T *next_curwin) 3495 { 3496 frame_T *frp; 3497 int m; 3498 int n; 3499 3500 if (topfrp->fr_win != NULL) 3501 { 3502 if (topfrp->fr_win == next_curwin) 3503 m = p_wh + topfrp->fr_win->w_status_height; 3504 else 3505 { 3506 // window: minimal height of the window plus status line 3507 m = p_wmh + topfrp->fr_win->w_status_height; 3508 if (topfrp->fr_win == curwin && next_curwin == NULL) 3509 { 3510 // Current window is minimal one line high and WinBar is 3511 // visible. 3512 if (p_wmh == 0) 3513 ++m; 3514 m += WINBAR_HEIGHT(curwin); 3515 } 3516 } 3517 } 3518 else if (topfrp->fr_layout == FR_ROW) 3519 { 3520 // get the minimal height from each frame in this row 3521 m = 0; 3522 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3523 { 3524 n = frame_minheight(frp, next_curwin); 3525 if (n > m) 3526 m = n; 3527 } 3528 } 3529 else 3530 { 3531 // Add up the minimal heights for all frames in this column. 3532 m = 0; 3533 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3534 m += frame_minheight(frp, next_curwin); 3535 } 3536 3537 return m; 3538 } 3539 3540 /* 3541 * Compute the minimal width for frame "topfrp". 3542 * When "next_curwin" isn't NULL, use p_wiw for this window. 3543 * When "next_curwin" is NOWIN, don't use at least one column for the current 3544 * window. 3545 */ 3546 static int 3547 frame_minwidth( 3548 frame_T *topfrp, 3549 win_T *next_curwin) // use p_wh and p_wiw for next_curwin 3550 { 3551 frame_T *frp; 3552 int m, n; 3553 3554 if (topfrp->fr_win != NULL) 3555 { 3556 if (topfrp->fr_win == next_curwin) 3557 m = p_wiw + topfrp->fr_win->w_vsep_width; 3558 else 3559 { 3560 // window: minimal width of the window plus separator column 3561 m = p_wmw + topfrp->fr_win->w_vsep_width; 3562 // Current window is minimal one column wide 3563 if (p_wmw == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3564 ++m; 3565 } 3566 } 3567 else if (topfrp->fr_layout == FR_COL) 3568 { 3569 // get the minimal width from each frame in this column 3570 m = 0; 3571 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3572 { 3573 n = frame_minwidth(frp, next_curwin); 3574 if (n > m) 3575 m = n; 3576 } 3577 } 3578 else 3579 { 3580 // Add up the minimal widths for all frames in this row. 3581 m = 0; 3582 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3583 m += frame_minwidth(frp, next_curwin); 3584 } 3585 3586 return m; 3587 } 3588 3589 3590 /* 3591 * Try to close all windows except current one. 3592 * Buffers in the other windows become hidden if 'hidden' is set, or '!' is 3593 * used and the buffer was modified. 3594 * 3595 * Used by ":bdel" and ":only". 3596 */ 3597 void 3598 close_others( 3599 int message, 3600 int forceit) // always hide all other windows 3601 { 3602 win_T *wp; 3603 win_T *nextwp; 3604 int r; 3605 3606 if (one_window()) 3607 { 3608 if (message && !autocmd_busy) 3609 msg(_(m_onlyone)); 3610 return; 3611 } 3612 3613 // Be very careful here: autocommands may change the window layout. 3614 for (wp = firstwin; win_valid(wp); wp = nextwp) 3615 { 3616 nextwp = wp->w_next; 3617 if (wp != curwin) // don't close current window 3618 { 3619 3620 // Check if it's allowed to abandon this window 3621 r = can_abandon(wp->w_buffer, forceit); 3622 if (!win_valid(wp)) // autocommands messed wp up 3623 { 3624 nextwp = firstwin; 3625 continue; 3626 } 3627 if (!r) 3628 { 3629 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 3630 if (message && (p_confirm 3631 || (cmdmod.cmod_flags & CMOD_CONFIRM)) && p_write) 3632 { 3633 dialog_changed(wp->w_buffer, FALSE); 3634 if (!win_valid(wp)) // autocommands messed wp up 3635 { 3636 nextwp = firstwin; 3637 continue; 3638 } 3639 } 3640 if (bufIsChanged(wp->w_buffer)) 3641 #endif 3642 continue; 3643 } 3644 win_close(wp, !buf_hide(wp->w_buffer) 3645 && !bufIsChanged(wp->w_buffer)); 3646 } 3647 } 3648 3649 if (message && !ONE_WINDOW) 3650 emsg(_("E445: Other window contains changes")); 3651 } 3652 3653 static void 3654 win_init_empty(win_T *wp) 3655 { 3656 redraw_win_later(wp, NOT_VALID); 3657 wp->w_lines_valid = 0; 3658 wp->w_cursor.lnum = 1; 3659 wp->w_curswant = wp->w_cursor.col = 0; 3660 wp->w_cursor.coladd = 0; 3661 wp->w_pcmark.lnum = 1; // pcmark not cleared but set to line 1 3662 wp->w_pcmark.col = 0; 3663 wp->w_prev_pcmark.lnum = 0; 3664 wp->w_prev_pcmark.col = 0; 3665 wp->w_topline = 1; 3666 #ifdef FEAT_DIFF 3667 wp->w_topfill = 0; 3668 #endif 3669 wp->w_botline = 2; 3670 #if defined(FEAT_SYN_HL) || defined(FEAT_SPELL) 3671 wp->w_s = &wp->w_buffer->b_s; 3672 #endif 3673 } 3674 3675 /* 3676 * Init the current window "curwin". 3677 * Called when a new file is being edited. 3678 */ 3679 void 3680 curwin_init(void) 3681 { 3682 win_init_empty(curwin); 3683 } 3684 3685 /* 3686 * Allocate the first window and put an empty buffer in it. 3687 * Called from main(). 3688 * Return FAIL when something goes wrong (out of memory). 3689 */ 3690 int 3691 win_alloc_first(void) 3692 { 3693 if (win_alloc_firstwin(NULL) == FAIL) 3694 return FAIL; 3695 3696 first_tabpage = alloc_tabpage(); 3697 if (first_tabpage == NULL) 3698 return FAIL; 3699 first_tabpage->tp_topframe = topframe; 3700 curtab = first_tabpage; 3701 curtab->tp_firstwin = firstwin; 3702 curtab->tp_lastwin = lastwin; 3703 curtab->tp_curwin = curwin; 3704 3705 return OK; 3706 } 3707 3708 /* 3709 * Allocate and init a window that is not a regular window. 3710 * This can only be done after the first window is fully initialized, thus it 3711 * can't be in win_alloc_first(). 3712 */ 3713 win_T * 3714 win_alloc_popup_win(void) 3715 { 3716 win_T *wp; 3717 3718 wp = win_alloc(NULL, TRUE); 3719 if (wp != NULL) 3720 { 3721 // We need to initialize options with something, using the current 3722 // window makes most sense. 3723 win_init_some(wp, curwin); 3724 3725 RESET_BINDING(wp); 3726 new_frame(wp); 3727 } 3728 return wp; 3729 } 3730 3731 /* 3732 * Initialize window "wp" to display buffer "buf". 3733 */ 3734 void 3735 win_init_popup_win(win_T *wp, buf_T *buf) 3736 { 3737 wp->w_buffer = buf; 3738 ++buf->b_nwindows; 3739 win_init_empty(wp); // set cursor and topline to safe values 3740 3741 // Make sure w_localdir and globaldir are NULL to avoid a chdir() in 3742 // win_enter_ext(). 3743 VIM_CLEAR(wp->w_localdir); 3744 } 3745 3746 /* 3747 * Allocate the first window or the first window in a new tab page. 3748 * When "oldwin" is NULL create an empty buffer for it. 3749 * When "oldwin" is not NULL copy info from it to the new window. 3750 * Return FAIL when something goes wrong (out of memory). 3751 */ 3752 static int 3753 win_alloc_firstwin(win_T *oldwin) 3754 { 3755 curwin = win_alloc(NULL, FALSE); 3756 if (oldwin == NULL) 3757 { 3758 // Very first window, need to create an empty buffer for it and 3759 // initialize from scratch. 3760 curbuf = buflist_new(NULL, NULL, 1L, BLN_LISTED); 3761 if (curwin == NULL || curbuf == NULL) 3762 return FAIL; 3763 curwin->w_buffer = curbuf; 3764 #ifdef FEAT_SYN_HL 3765 curwin->w_s = &(curbuf->b_s); 3766 #endif 3767 curbuf->b_nwindows = 1; // there is one window 3768 curwin->w_alist = &global_alist; 3769 curwin_init(); // init current window 3770 } 3771 else 3772 { 3773 // First window in new tab page, initialize it from "oldwin". 3774 win_init(curwin, oldwin, 0); 3775 3776 // We don't want cursor- and scroll-binding in the first window. 3777 RESET_BINDING(curwin); 3778 } 3779 3780 new_frame(curwin); 3781 if (curwin->w_frame == NULL) 3782 return FAIL; 3783 topframe = curwin->w_frame; 3784 topframe->fr_width = Columns; 3785 topframe->fr_height = Rows - p_ch; 3786 3787 return OK; 3788 } 3789 3790 /* 3791 * Create a frame for window "wp". 3792 */ 3793 static void 3794 new_frame(win_T *wp) 3795 { 3796 frame_T *frp = ALLOC_CLEAR_ONE(frame_T); 3797 3798 wp->w_frame = frp; 3799 if (frp != NULL) 3800 { 3801 frp->fr_layout = FR_LEAF; 3802 frp->fr_win = wp; 3803 } 3804 } 3805 3806 /* 3807 * Initialize the window and frame size to the maximum. 3808 */ 3809 void 3810 win_init_size(void) 3811 { 3812 firstwin->w_height = ROWS_AVAIL; 3813 topframe->fr_height = ROWS_AVAIL; 3814 firstwin->w_width = Columns; 3815 topframe->fr_width = Columns; 3816 } 3817 3818 /* 3819 * Allocate a new tabpage_T and init the values. 3820 * Returns NULL when out of memory. 3821 */ 3822 static tabpage_T * 3823 alloc_tabpage(void) 3824 { 3825 tabpage_T *tp; 3826 # ifdef FEAT_GUI 3827 int i; 3828 # endif 3829 3830 3831 tp = ALLOC_CLEAR_ONE(tabpage_T); 3832 if (tp == NULL) 3833 return NULL; 3834 3835 # ifdef FEAT_EVAL 3836 // init t: variables 3837 tp->tp_vars = dict_alloc(); 3838 if (tp->tp_vars == NULL) 3839 { 3840 vim_free(tp); 3841 return NULL; 3842 } 3843 init_var_dict(tp->tp_vars, &tp->tp_winvar, VAR_SCOPE); 3844 # endif 3845 3846 # ifdef FEAT_GUI 3847 for (i = 0; i < 3; i++) 3848 tp->tp_prev_which_scrollbars[i] = -1; 3849 # endif 3850 # ifdef FEAT_DIFF 3851 tp->tp_diff_invalid = TRUE; 3852 # endif 3853 tp->tp_ch_used = p_ch; 3854 3855 return tp; 3856 } 3857 3858 void 3859 free_tabpage(tabpage_T *tp) 3860 { 3861 int idx; 3862 3863 # ifdef FEAT_DIFF 3864 diff_clear(tp); 3865 # endif 3866 # ifdef FEAT_PROP_POPUP 3867 while (tp->tp_first_popupwin != NULL) 3868 popup_close_tabpage(tp, tp->tp_first_popupwin->w_id, TRUE); 3869 #endif 3870 for (idx = 0; idx < SNAP_COUNT; ++idx) 3871 clear_snapshot(tp, idx); 3872 #ifdef FEAT_EVAL 3873 vars_clear(&tp->tp_vars->dv_hashtab); // free all t: variables 3874 hash_init(&tp->tp_vars->dv_hashtab); 3875 unref_var_dict(tp->tp_vars); 3876 #endif 3877 3878 if (tp == lastused_tabpage) 3879 lastused_tabpage = NULL; 3880 3881 vim_free(tp->tp_localdir); 3882 vim_free(tp->tp_prevdir); 3883 3884 #ifdef FEAT_PYTHON 3885 python_tabpage_free(tp); 3886 #endif 3887 3888 #ifdef FEAT_PYTHON3 3889 python3_tabpage_free(tp); 3890 #endif 3891 3892 vim_free(tp); 3893 } 3894 3895 /* 3896 * Create a new Tab page with one window. 3897 * It will edit the current buffer, like after ":split". 3898 * When "after" is 0 put it just after the current Tab page. 3899 * Otherwise put it just before tab page "after". 3900 * Return FAIL or OK. 3901 */ 3902 int 3903 win_new_tabpage(int after) 3904 { 3905 tabpage_T *tp = curtab; 3906 tabpage_T *prev_tp = curtab; 3907 tabpage_T *newtp; 3908 int n; 3909 3910 newtp = alloc_tabpage(); 3911 if (newtp == NULL) 3912 return FAIL; 3913 3914 // Remember the current windows in this Tab page. 3915 if (leave_tabpage(curbuf, TRUE) == FAIL) 3916 { 3917 vim_free(newtp); 3918 return FAIL; 3919 } 3920 curtab = newtp; 3921 3922 newtp->tp_localdir = (tp->tp_localdir == NULL) 3923 ? NULL : vim_strsave(tp->tp_localdir); 3924 // Create a new empty window. 3925 if (win_alloc_firstwin(tp->tp_curwin) == OK) 3926 { 3927 // Make the new Tab page the new topframe. 3928 if (after == 1) 3929 { 3930 // New tab page becomes the first one. 3931 newtp->tp_next = first_tabpage; 3932 first_tabpage = newtp; 3933 } 3934 else 3935 { 3936 if (after > 0) 3937 { 3938 // Put new tab page before tab page "after". 3939 n = 2; 3940 for (tp = first_tabpage; tp->tp_next != NULL 3941 && n < after; tp = tp->tp_next) 3942 ++n; 3943 } 3944 newtp->tp_next = tp->tp_next; 3945 tp->tp_next = newtp; 3946 } 3947 newtp->tp_firstwin = newtp->tp_lastwin = newtp->tp_curwin = curwin; 3948 3949 win_init_size(); 3950 firstwin->w_winrow = tabline_height(); 3951 win_comp_scroll(curwin); 3952 3953 newtp->tp_topframe = topframe; 3954 last_status(FALSE); 3955 3956 lastused_tabpage = prev_tp; 3957 3958 #if defined(FEAT_GUI) 3959 // When 'guioptions' includes 'L' or 'R' may have to remove or add 3960 // scrollbars. Have to update them anyway. 3961 gui_may_update_scrollbars(); 3962 #endif 3963 #ifdef FEAT_JOB_CHANNEL 3964 entering_window(curwin); 3965 #endif 3966 3967 redraw_all_later(NOT_VALID); 3968 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 3969 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 3970 apply_autocmds(EVENT_TABNEW, NULL, NULL, FALSE, curbuf); 3971 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3972 return OK; 3973 } 3974 3975 // Failed, get back the previous Tab page 3976 enter_tabpage(curtab, curbuf, TRUE, TRUE); 3977 return FAIL; 3978 } 3979 3980 /* 3981 * Open a new tab page if ":tab cmd" was used. It will edit the same buffer, 3982 * like with ":split". 3983 * Returns OK if a new tab page was created, FAIL otherwise. 3984 */ 3985 static int 3986 may_open_tabpage(void) 3987 { 3988 int n = (cmdmod.cmod_tab == 0) 3989 ? postponed_split_tab : cmdmod.cmod_tab; 3990 3991 if (n != 0) 3992 { 3993 cmdmod.cmod_tab = 0; // reset it to avoid doing it twice 3994 postponed_split_tab = 0; 3995 return win_new_tabpage(n); 3996 } 3997 return FAIL; 3998 } 3999 4000 /* 4001 * Create up to "maxcount" tabpages with empty windows. 4002 * Returns the number of resulting tab pages. 4003 */ 4004 int 4005 make_tabpages(int maxcount) 4006 { 4007 int count = maxcount; 4008 int todo; 4009 4010 // Limit to 'tabpagemax' tabs. 4011 if (count > p_tpm) 4012 count = p_tpm; 4013 4014 /* 4015 * Don't execute autocommands while creating the tab pages. Must do that 4016 * when putting the buffers in the windows. 4017 */ 4018 block_autocmds(); 4019 4020 for (todo = count - 1; todo > 0; --todo) 4021 if (win_new_tabpage(0) == FAIL) 4022 break; 4023 4024 unblock_autocmds(); 4025 4026 // return actual number of tab pages 4027 return (count - todo); 4028 } 4029 4030 /* 4031 * Return TRUE when "tpc" points to a valid tab page. 4032 */ 4033 int 4034 valid_tabpage(tabpage_T *tpc) 4035 { 4036 tabpage_T *tp; 4037 4038 FOR_ALL_TABPAGES(tp) 4039 if (tp == tpc) 4040 return TRUE; 4041 return FALSE; 4042 } 4043 4044 /* 4045 * Return TRUE when "tpc" points to a valid tab page and at least one window is 4046 * valid. 4047 */ 4048 int 4049 valid_tabpage_win(tabpage_T *tpc) 4050 { 4051 tabpage_T *tp; 4052 win_T *wp; 4053 4054 FOR_ALL_TABPAGES(tp) 4055 { 4056 if (tp == tpc) 4057 { 4058 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 4059 { 4060 if (win_valid_any_tab(wp)) 4061 return TRUE; 4062 } 4063 return FALSE; 4064 } 4065 } 4066 // shouldn't happen 4067 return FALSE; 4068 } 4069 4070 /* 4071 * Close tabpage "tab", assuming it has no windows in it. 4072 * There must be another tabpage or this will crash. 4073 */ 4074 void 4075 close_tabpage(tabpage_T *tab) 4076 { 4077 tabpage_T *ptp; 4078 4079 if (tab == first_tabpage) 4080 { 4081 first_tabpage = tab->tp_next; 4082 ptp = first_tabpage; 4083 } 4084 else 4085 { 4086 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tab; 4087 ptp = ptp->tp_next) 4088 ; 4089 assert(ptp != NULL); 4090 ptp->tp_next = tab->tp_next; 4091 } 4092 4093 goto_tabpage_tp(ptp, FALSE, FALSE); 4094 free_tabpage(tab); 4095 } 4096 4097 /* 4098 * Find tab page "n" (first one is 1). Returns NULL when not found. 4099 */ 4100 tabpage_T * 4101 find_tabpage(int n) 4102 { 4103 tabpage_T *tp; 4104 int i = 1; 4105 4106 if (n == 0) 4107 return curtab; 4108 4109 for (tp = first_tabpage; tp != NULL && i != n; tp = tp->tp_next) 4110 ++i; 4111 return tp; 4112 } 4113 4114 /* 4115 * Get index of tab page "tp". First one has index 1. 4116 * When not found returns number of tab pages plus one. 4117 */ 4118 int 4119 tabpage_index(tabpage_T *ftp) 4120 { 4121 int i = 1; 4122 tabpage_T *tp; 4123 4124 for (tp = first_tabpage; tp != NULL && tp != ftp; tp = tp->tp_next) 4125 ++i; 4126 return i; 4127 } 4128 4129 /* 4130 * Prepare for leaving the current tab page. 4131 * When autocommands change "curtab" we don't leave the tab page and return 4132 * FAIL. 4133 * Careful: When OK is returned need to get a new tab page very very soon! 4134 */ 4135 static int 4136 leave_tabpage( 4137 buf_T *new_curbuf UNUSED, // what is going to be the new curbuf, 4138 // NULL if unknown 4139 int trigger_leave_autocmds UNUSED) 4140 { 4141 tabpage_T *tp = curtab; 4142 4143 #ifdef FEAT_JOB_CHANNEL 4144 leaving_window(curwin); 4145 #endif 4146 reset_VIsual_and_resel(); // stop Visual mode 4147 if (trigger_leave_autocmds) 4148 { 4149 if (new_curbuf != curbuf) 4150 { 4151 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4152 if (curtab != tp) 4153 return FAIL; 4154 } 4155 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4156 if (curtab != tp) 4157 return FAIL; 4158 apply_autocmds(EVENT_TABLEAVE, NULL, NULL, FALSE, curbuf); 4159 if (curtab != tp) 4160 return FAIL; 4161 } 4162 #if defined(FEAT_GUI) 4163 // Remove the scrollbars. They may be added back later. 4164 if (gui.in_use) 4165 gui_remove_scrollbars(); 4166 #endif 4167 tp->tp_curwin = curwin; 4168 tp->tp_prevwin = prevwin; 4169 tp->tp_firstwin = firstwin; 4170 tp->tp_lastwin = lastwin; 4171 tp->tp_old_Rows = Rows; 4172 tp->tp_old_Columns = Columns; 4173 firstwin = NULL; 4174 lastwin = NULL; 4175 return OK; 4176 } 4177 4178 /* 4179 * Start using tab page "tp". 4180 * Only to be used after leave_tabpage() or freeing the current tab page. 4181 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4182 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4183 */ 4184 static void 4185 enter_tabpage( 4186 tabpage_T *tp, 4187 buf_T *old_curbuf UNUSED, 4188 int trigger_enter_autocmds, 4189 int trigger_leave_autocmds) 4190 { 4191 int row; 4192 int old_off = tp->tp_firstwin->w_winrow; 4193 win_T *next_prevwin = tp->tp_prevwin; 4194 tabpage_T *last_tab = curtab; 4195 4196 curtab = tp; 4197 firstwin = tp->tp_firstwin; 4198 lastwin = tp->tp_lastwin; 4199 topframe = tp->tp_topframe; 4200 4201 // We would like doing the TabEnter event first, but we don't have a 4202 // valid current window yet, which may break some commands. 4203 // This triggers autocommands, thus may make "tp" invalid. 4204 (void)win_enter_ext(tp->tp_curwin, WEE_CURWIN_INVALID 4205 | (trigger_enter_autocmds ? WEE_TRIGGER_ENTER_AUTOCMDS : 0) 4206 | (trigger_leave_autocmds ? WEE_TRIGGER_LEAVE_AUTOCMDS : 0)); 4207 prevwin = next_prevwin; 4208 4209 last_status(FALSE); // status line may appear or disappear 4210 row = win_comp_pos(); // recompute w_winrow for all windows 4211 #ifdef FEAT_DIFF 4212 diff_need_scrollbind = TRUE; 4213 #endif 4214 4215 // The tabpage line may have appeared or disappeared, may need to resize 4216 // the frames for that. When the Vim window was resized need to update 4217 // frame sizes too. Use the stored value of p_ch, so that it can be 4218 // different for each tab page. 4219 if (p_ch != curtab->tp_ch_used) 4220 clear_cmdline = TRUE; 4221 p_ch = curtab->tp_ch_used; 4222 4223 // When cmdheight is changed in a tab page with '<C-w>-', cmdline_row is 4224 // changed but p_ch and tp_ch_used are not changed. Thus we also need to 4225 // check cmdline_row. 4226 if ((row < cmdline_row) && (cmdline_row <= Rows - p_ch)) 4227 clear_cmdline = TRUE; 4228 4229 if (curtab->tp_old_Rows != Rows || (old_off != firstwin->w_winrow 4230 #ifdef FEAT_GUI_TABLINE 4231 && !gui_use_tabline() 4232 #endif 4233 )) 4234 shell_new_rows(); 4235 if (curtab->tp_old_Columns != Columns && starting == 0) 4236 shell_new_columns(); // update window widths 4237 4238 lastused_tabpage = last_tab; 4239 4240 #if defined(FEAT_GUI) 4241 // When 'guioptions' includes 'L' or 'R' may have to remove or add 4242 // scrollbars. Have to update them anyway. 4243 gui_may_update_scrollbars(); 4244 #endif 4245 4246 // Apply autocommands after updating the display, when 'rows' and 4247 // 'columns' have been set correctly. 4248 if (trigger_enter_autocmds) 4249 { 4250 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 4251 if (old_curbuf != curbuf) 4252 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4253 } 4254 4255 redraw_all_later(NOT_VALID); 4256 } 4257 4258 /* 4259 * Go to tab page "n". For ":tab N" and "Ngt". 4260 * When "n" is 9999 go to the last tab page. 4261 */ 4262 void 4263 goto_tabpage(int n) 4264 { 4265 tabpage_T *tp = NULL; // shut up compiler 4266 tabpage_T *ttp; 4267 int i; 4268 4269 if (text_locked()) 4270 { 4271 // Not allowed when editing the command line. 4272 text_locked_msg(); 4273 return; 4274 } 4275 4276 // If there is only one it can't work. 4277 if (first_tabpage->tp_next == NULL) 4278 { 4279 if (n > 1) 4280 beep_flush(); 4281 return; 4282 } 4283 4284 if (n == 0) 4285 { 4286 // No count, go to next tab page, wrap around end. 4287 if (curtab->tp_next == NULL) 4288 tp = first_tabpage; 4289 else 4290 tp = curtab->tp_next; 4291 } 4292 else if (n < 0) 4293 { 4294 // "gT": go to previous tab page, wrap around end. "N gT" repeats 4295 // this N times. 4296 ttp = curtab; 4297 for (i = n; i < 0; ++i) 4298 { 4299 for (tp = first_tabpage; tp->tp_next != ttp && tp->tp_next != NULL; 4300 tp = tp->tp_next) 4301 ; 4302 ttp = tp; 4303 } 4304 } 4305 else if (n == 9999) 4306 { 4307 // Go to last tab page. 4308 for (tp = first_tabpage; tp->tp_next != NULL; tp = tp->tp_next) 4309 ; 4310 } 4311 else 4312 { 4313 // Go to tab page "n". 4314 tp = find_tabpage(n); 4315 if (tp == NULL) 4316 { 4317 beep_flush(); 4318 return; 4319 } 4320 } 4321 4322 goto_tabpage_tp(tp, TRUE, TRUE); 4323 4324 #ifdef FEAT_GUI_TABLINE 4325 if (gui_use_tabline()) 4326 gui_mch_set_curtab(tabpage_index(curtab)); 4327 #endif 4328 } 4329 4330 /* 4331 * Go to tabpage "tp". 4332 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4333 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4334 * Note: doesn't update the GUI tab. 4335 */ 4336 void 4337 goto_tabpage_tp( 4338 tabpage_T *tp, 4339 int trigger_enter_autocmds, 4340 int trigger_leave_autocmds) 4341 { 4342 // Don't repeat a message in another tab page. 4343 set_keep_msg(NULL, 0); 4344 4345 if (tp != curtab && leave_tabpage(tp->tp_curwin->w_buffer, 4346 trigger_leave_autocmds) == OK) 4347 { 4348 if (valid_tabpage(tp)) 4349 enter_tabpage(tp, curbuf, trigger_enter_autocmds, 4350 trigger_leave_autocmds); 4351 else 4352 enter_tabpage(curtab, curbuf, trigger_enter_autocmds, 4353 trigger_leave_autocmds); 4354 } 4355 } 4356 4357 /* 4358 * Go to the last accessed tab page, if there is one. 4359 * Return OK or FAIL 4360 */ 4361 int 4362 goto_tabpage_lastused(void) 4363 { 4364 if (valid_tabpage(lastused_tabpage)) 4365 { 4366 goto_tabpage_tp(lastused_tabpage, TRUE, TRUE); 4367 return OK; 4368 } 4369 return FAIL; 4370 } 4371 4372 /* 4373 * Enter window "wp" in tab page "tp". 4374 * Also updates the GUI tab. 4375 */ 4376 void 4377 goto_tabpage_win(tabpage_T *tp, win_T *wp) 4378 { 4379 goto_tabpage_tp(tp, TRUE, TRUE); 4380 if (curtab == tp && win_valid(wp)) 4381 { 4382 win_enter(wp, TRUE); 4383 # ifdef FEAT_GUI_TABLINE 4384 if (gui_use_tabline()) 4385 gui_mch_set_curtab(tabpage_index(curtab)); 4386 # endif 4387 } 4388 } 4389 4390 /* 4391 * Move the current tab page to after tab page "nr". 4392 */ 4393 void 4394 tabpage_move(int nr) 4395 { 4396 int n = 1; 4397 tabpage_T *tp, *tp_dst; 4398 4399 if (first_tabpage->tp_next == NULL) 4400 return; 4401 4402 for (tp = first_tabpage; tp->tp_next != NULL && n < nr; tp = tp->tp_next) 4403 ++n; 4404 4405 if (tp == curtab || (nr > 0 && tp->tp_next != NULL 4406 && tp->tp_next == curtab)) 4407 return; 4408 4409 tp_dst = tp; 4410 4411 // Remove the current tab page from the list of tab pages. 4412 if (curtab == first_tabpage) 4413 first_tabpage = curtab->tp_next; 4414 else 4415 { 4416 FOR_ALL_TABPAGES(tp) 4417 if (tp->tp_next == curtab) 4418 break; 4419 if (tp == NULL) // "cannot happen" 4420 return; 4421 tp->tp_next = curtab->tp_next; 4422 } 4423 4424 // Re-insert it at the specified position. 4425 if (nr <= 0) 4426 { 4427 curtab->tp_next = first_tabpage; 4428 first_tabpage = curtab; 4429 } 4430 else 4431 { 4432 curtab->tp_next = tp_dst->tp_next; 4433 tp_dst->tp_next = curtab; 4434 } 4435 4436 // Need to redraw the tabline. Tab page contents doesn't change. 4437 redraw_tabline = TRUE; 4438 } 4439 4440 4441 /* 4442 * Go to another window. 4443 * When jumping to another buffer, stop Visual mode. Do this before 4444 * changing windows so we can yank the selection into the '*' register. 4445 * When jumping to another window on the same buffer, adjust its cursor 4446 * position to keep the same Visual area. 4447 */ 4448 void 4449 win_goto(win_T *wp) 4450 { 4451 #ifdef FEAT_CONCEAL 4452 win_T *owp = curwin; 4453 #endif 4454 4455 #ifdef FEAT_PROP_POPUP 4456 if (ERROR_IF_ANY_POPUP_WINDOW) 4457 return; 4458 if (popup_is_popup(wp)) 4459 { 4460 emsg(_("E366: Not allowed to enter a popup window")); 4461 return; 4462 } 4463 #endif 4464 if (text_and_win_locked()) 4465 { 4466 beep_flush(); 4467 text_locked_msg(); 4468 return; 4469 } 4470 if (curbuf_locked()) 4471 return; 4472 4473 if (wp->w_buffer != curbuf) 4474 reset_VIsual_and_resel(); 4475 else if (VIsual_active) 4476 wp->w_cursor = curwin->w_cursor; 4477 4478 #ifdef FEAT_GUI 4479 need_mouse_correct = TRUE; 4480 #endif 4481 win_enter(wp, TRUE); 4482 4483 #ifdef FEAT_CONCEAL 4484 // Conceal cursor line in previous window, unconceal in current window. 4485 if (win_valid(owp) && owp->w_p_cole > 0 && !msg_scrolled) 4486 redrawWinline(owp, owp->w_cursor.lnum); 4487 if (curwin->w_p_cole > 0 && !msg_scrolled) 4488 need_cursor_line_redraw = TRUE; 4489 #endif 4490 } 4491 4492 #if defined(FEAT_PERL) || defined(FEAT_LUA) || defined(PROTO) 4493 /* 4494 * Find window number "winnr" (counting top to bottom). 4495 */ 4496 win_T * 4497 win_find_nr(int winnr) 4498 { 4499 win_T *wp; 4500 4501 FOR_ALL_WINDOWS(wp) 4502 if (--winnr == 0) 4503 break; 4504 return wp; 4505 } 4506 #endif 4507 4508 #if ((defined(FEAT_PYTHON) || defined(FEAT_PYTHON3))) || defined(PROTO) 4509 /* 4510 * Find the tabpage for window "win". 4511 */ 4512 tabpage_T * 4513 win_find_tabpage(win_T *win) 4514 { 4515 win_T *wp; 4516 tabpage_T *tp; 4517 4518 FOR_ALL_TAB_WINDOWS(tp, wp) 4519 if (wp == win) 4520 return tp; 4521 return NULL; 4522 } 4523 #endif 4524 4525 /* 4526 * Get the above or below neighbor window of the specified window. 4527 * up - TRUE for the above neighbor 4528 * count - nth neighbor window 4529 * Returns the specified window if the neighbor is not found. 4530 */ 4531 win_T * 4532 win_vert_neighbor(tabpage_T *tp, win_T *wp, int up, long count) 4533 { 4534 frame_T *fr; 4535 frame_T *nfr; 4536 frame_T *foundfr; 4537 4538 #ifdef FEAT_PROP_POPUP 4539 if (popup_is_popup(wp)) 4540 // popups don't have neighbors. 4541 return NULL; 4542 #endif 4543 foundfr = wp->w_frame; 4544 while (count--) 4545 { 4546 /* 4547 * First go upwards in the tree of frames until we find a upwards or 4548 * downwards neighbor. 4549 */ 4550 fr = foundfr; 4551 for (;;) 4552 { 4553 if (fr == tp->tp_topframe) 4554 goto end; 4555 if (up) 4556 nfr = fr->fr_prev; 4557 else 4558 nfr = fr->fr_next; 4559 if (fr->fr_parent->fr_layout == FR_COL && nfr != NULL) 4560 break; 4561 fr = fr->fr_parent; 4562 } 4563 4564 /* 4565 * Now go downwards to find the bottom or top frame in it. 4566 */ 4567 for (;;) 4568 { 4569 if (nfr->fr_layout == FR_LEAF) 4570 { 4571 foundfr = nfr; 4572 break; 4573 } 4574 fr = nfr->fr_child; 4575 if (nfr->fr_layout == FR_ROW) 4576 { 4577 // Find the frame at the cursor row. 4578 while (fr->fr_next != NULL 4579 && frame2win(fr)->w_wincol + fr->fr_width 4580 <= wp->w_wincol + wp->w_wcol) 4581 fr = fr->fr_next; 4582 } 4583 if (nfr->fr_layout == FR_COL && up) 4584 while (fr->fr_next != NULL) 4585 fr = fr->fr_next; 4586 nfr = fr; 4587 } 4588 } 4589 end: 4590 return foundfr != NULL ? foundfr->fr_win : NULL; 4591 } 4592 4593 /* 4594 * Move to window above or below "count" times. 4595 */ 4596 static void 4597 win_goto_ver( 4598 int up, // TRUE to go to win above 4599 long count) 4600 { 4601 win_T *win; 4602 4603 #ifdef FEAT_PROP_POPUP 4604 if (ERROR_IF_TERM_POPUP_WINDOW) 4605 return; 4606 #endif 4607 win = win_vert_neighbor(curtab, curwin, up, count); 4608 if (win != NULL) 4609 win_goto(win); 4610 } 4611 4612 /* 4613 * Get the left or right neighbor window of the specified window. 4614 * left - TRUE for the left neighbor 4615 * count - nth neighbor window 4616 * Returns the specified window if the neighbor is not found. 4617 */ 4618 win_T * 4619 win_horz_neighbor(tabpage_T *tp, win_T *wp, int left, long count) 4620 { 4621 frame_T *fr; 4622 frame_T *nfr; 4623 frame_T *foundfr; 4624 4625 #ifdef FEAT_PROP_POPUP 4626 if (popup_is_popup(wp)) 4627 // popups don't have neighbors. 4628 return NULL; 4629 #endif 4630 foundfr = wp->w_frame; 4631 while (count--) 4632 { 4633 /* 4634 * First go upwards in the tree of frames until we find a left or 4635 * right neighbor. 4636 */ 4637 fr = foundfr; 4638 for (;;) 4639 { 4640 if (fr == tp->tp_topframe) 4641 goto end; 4642 if (left) 4643 nfr = fr->fr_prev; 4644 else 4645 nfr = fr->fr_next; 4646 if (fr->fr_parent->fr_layout == FR_ROW && nfr != NULL) 4647 break; 4648 fr = fr->fr_parent; 4649 } 4650 4651 /* 4652 * Now go downwards to find the leftmost or rightmost frame in it. 4653 */ 4654 for (;;) 4655 { 4656 if (nfr->fr_layout == FR_LEAF) 4657 { 4658 foundfr = nfr; 4659 break; 4660 } 4661 fr = nfr->fr_child; 4662 if (nfr->fr_layout == FR_COL) 4663 { 4664 // Find the frame at the cursor row. 4665 while (fr->fr_next != NULL 4666 && frame2win(fr)->w_winrow + fr->fr_height 4667 <= wp->w_winrow + wp->w_wrow) 4668 fr = fr->fr_next; 4669 } 4670 if (nfr->fr_layout == FR_ROW && left) 4671 while (fr->fr_next != NULL) 4672 fr = fr->fr_next; 4673 nfr = fr; 4674 } 4675 } 4676 end: 4677 return foundfr != NULL ? foundfr->fr_win : NULL; 4678 } 4679 4680 /* 4681 * Move to left or right window. 4682 */ 4683 static void 4684 win_goto_hor( 4685 int left, // TRUE to go to left win 4686 long count) 4687 { 4688 win_T *win; 4689 4690 #ifdef FEAT_PROP_POPUP 4691 if (ERROR_IF_TERM_POPUP_WINDOW) 4692 return; 4693 #endif 4694 win = win_horz_neighbor(curtab, curwin, left, count); 4695 if (win != NULL) 4696 win_goto(win); 4697 } 4698 4699 /* 4700 * Make window "wp" the current window. 4701 */ 4702 void 4703 win_enter(win_T *wp, int undo_sync) 4704 { 4705 (void)win_enter_ext(wp, (undo_sync ? WEE_UNDO_SYNC : 0) 4706 | WEE_TRIGGER_ENTER_AUTOCMDS | WEE_TRIGGER_LEAVE_AUTOCMDS); 4707 } 4708 4709 /* 4710 * Make window "wp" the current window. 4711 * Can be called with "flags" containing WEE_CURWIN_INVALID, which means that 4712 * curwin has just been closed and isn't valid. 4713 * Returns TRUE when dont_parse_messages was decremented. 4714 */ 4715 static int 4716 win_enter_ext(win_T *wp, int flags) 4717 { 4718 int other_buffer = FALSE; 4719 int curwin_invalid = (flags & WEE_CURWIN_INVALID); 4720 int did_decrement = FALSE; 4721 4722 if (wp == curwin && !curwin_invalid) // nothing to do 4723 return FALSE; 4724 4725 #ifdef FEAT_JOB_CHANNEL 4726 if (!curwin_invalid) 4727 leaving_window(curwin); 4728 #endif 4729 4730 if (!curwin_invalid && (flags & WEE_TRIGGER_LEAVE_AUTOCMDS)) 4731 { 4732 /* 4733 * Be careful: If autocommands delete the window, return now. 4734 */ 4735 if (wp->w_buffer != curbuf) 4736 { 4737 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4738 other_buffer = TRUE; 4739 if (!win_valid(wp)) 4740 return FALSE; 4741 } 4742 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4743 if (!win_valid(wp)) 4744 return FALSE; 4745 #ifdef FEAT_EVAL 4746 // autocmds may abort script processing 4747 if (aborting()) 4748 return FALSE; 4749 #endif 4750 } 4751 4752 // sync undo before leaving the current buffer 4753 if ((flags & WEE_UNDO_SYNC) && curbuf != wp->w_buffer) 4754 u_sync(FALSE); 4755 4756 // Might need to scroll the old window before switching, e.g., when the 4757 // cursor was moved. 4758 update_topline(); 4759 4760 // may have to copy the buffer options when 'cpo' contains 'S' 4761 if (wp->w_buffer != curbuf) 4762 buf_copy_options(wp->w_buffer, BCO_ENTER | BCO_NOHELP); 4763 if (!curwin_invalid) 4764 { 4765 prevwin = curwin; // remember for CTRL-W p 4766 curwin->w_redr_status = TRUE; 4767 } 4768 curwin = wp; 4769 curbuf = wp->w_buffer; 4770 check_cursor(); 4771 if (!virtual_active()) 4772 curwin->w_cursor.coladd = 0; 4773 changed_line_abv_curs(); // assume cursor position needs updating 4774 4775 // Now it is OK to parse messages again, which may be needed in 4776 // autocommands. 4777 #ifdef MESSAGE_QUEUE 4778 if (flags & WEE_ALLOW_PARSE_MESSAGES) 4779 { 4780 --dont_parse_messages; 4781 did_decrement = TRUE; 4782 } 4783 #endif 4784 4785 if (curwin->w_localdir != NULL || curtab->tp_localdir != NULL) 4786 { 4787 char_u *dirname; 4788 4789 // Window or tab has a local directory: Save current directory as 4790 // global directory (unless that was done already) and change to the 4791 // local directory. 4792 if (globaldir == NULL) 4793 { 4794 char_u cwd[MAXPATHL]; 4795 4796 if (mch_dirname(cwd, MAXPATHL) == OK) 4797 globaldir = vim_strsave(cwd); 4798 } 4799 if (curwin->w_localdir != NULL) 4800 dirname = curwin->w_localdir; 4801 else 4802 dirname = curtab->tp_localdir; 4803 4804 if (mch_chdir((char *)dirname) == 0) 4805 shorten_fnames(TRUE); 4806 } 4807 else if (globaldir != NULL) 4808 { 4809 // Window doesn't have a local directory and we are not in the global 4810 // directory: Change to the global directory. 4811 vim_ignored = mch_chdir((char *)globaldir); 4812 VIM_CLEAR(globaldir); 4813 shorten_fnames(TRUE); 4814 } 4815 4816 #ifdef FEAT_JOB_CHANNEL 4817 entering_window(curwin); 4818 #endif 4819 // Careful: autocommands may close the window and make "wp" invalid 4820 if (flags & WEE_TRIGGER_NEW_AUTOCMDS) 4821 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 4822 if (flags & WEE_TRIGGER_ENTER_AUTOCMDS) 4823 { 4824 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 4825 if (other_buffer) 4826 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4827 } 4828 4829 #ifdef FEAT_TITLE 4830 maketitle(); 4831 #endif 4832 curwin->w_redr_status = TRUE; 4833 #ifdef FEAT_TERMINAL 4834 if (bt_terminal(curwin->w_buffer)) 4835 // terminal is likely in another mode 4836 redraw_mode = TRUE; 4837 #endif 4838 redraw_tabline = TRUE; 4839 if (restart_edit) 4840 redraw_later(VALID); // causes status line redraw 4841 4842 // set window height to desired minimal value 4843 if (curwin->w_height < p_wh && !curwin->w_p_wfh 4844 #ifdef FEAT_PROP_POPUP 4845 && !popup_is_popup(curwin) 4846 #endif 4847 ) 4848 win_setheight((int)p_wh); 4849 else if (curwin->w_height == 0) 4850 win_setheight(1); 4851 4852 // set window width to desired minimal value 4853 if (curwin->w_width < p_wiw && !curwin->w_p_wfw) 4854 win_setwidth((int)p_wiw); 4855 4856 setmouse(); // in case jumped to/from help buffer 4857 4858 // Change directories when the 'acd' option is set. 4859 DO_AUTOCHDIR; 4860 4861 return did_decrement; 4862 } 4863 4864 4865 /* 4866 * Jump to the first open window that contains buffer "buf", if one exists. 4867 * Returns a pointer to the window found, otherwise NULL. 4868 */ 4869 win_T * 4870 buf_jump_open_win(buf_T *buf) 4871 { 4872 win_T *wp = NULL; 4873 4874 if (curwin->w_buffer == buf) 4875 wp = curwin; 4876 else 4877 FOR_ALL_WINDOWS(wp) 4878 if (wp->w_buffer == buf) 4879 break; 4880 if (wp != NULL) 4881 win_enter(wp, FALSE); 4882 return wp; 4883 } 4884 4885 /* 4886 * Jump to the first open window in any tab page that contains buffer "buf", 4887 * if one exists. 4888 * Returns a pointer to the window found, otherwise NULL. 4889 */ 4890 win_T * 4891 buf_jump_open_tab(buf_T *buf) 4892 { 4893 win_T *wp = buf_jump_open_win(buf); 4894 tabpage_T *tp; 4895 4896 if (wp != NULL) 4897 return wp; 4898 4899 FOR_ALL_TABPAGES(tp) 4900 if (tp != curtab) 4901 { 4902 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 4903 if (wp->w_buffer == buf) 4904 break; 4905 if (wp != NULL) 4906 { 4907 goto_tabpage_win(tp, wp); 4908 if (curwin != wp) 4909 wp = NULL; // something went wrong 4910 break; 4911 } 4912 } 4913 return wp; 4914 } 4915 4916 static int last_win_id = LOWEST_WIN_ID - 1; 4917 4918 /* 4919 * Allocate a window structure and link it in the window list when "hidden" is 4920 * FALSE. 4921 */ 4922 static win_T * 4923 win_alloc(win_T *after UNUSED, int hidden UNUSED) 4924 { 4925 win_T *new_wp; 4926 4927 /* 4928 * allocate window structure and linesizes arrays 4929 */ 4930 new_wp = ALLOC_CLEAR_ONE(win_T); 4931 if (new_wp == NULL) 4932 return NULL; 4933 4934 if (win_alloc_lines(new_wp) == FAIL) 4935 { 4936 vim_free(new_wp); 4937 return NULL; 4938 } 4939 4940 new_wp->w_id = ++last_win_id; 4941 4942 #ifdef FEAT_EVAL 4943 // init w: variables 4944 new_wp->w_vars = dict_alloc(); 4945 if (new_wp->w_vars == NULL) 4946 { 4947 win_free_lsize(new_wp); 4948 vim_free(new_wp); 4949 return NULL; 4950 } 4951 init_var_dict(new_wp->w_vars, &new_wp->w_winvar, VAR_SCOPE); 4952 #endif 4953 4954 // Don't execute autocommands while the window is not properly 4955 // initialized yet. gui_create_scrollbar() may trigger a FocusGained 4956 // event. 4957 block_autocmds(); 4958 4959 /* 4960 * link the window in the window list 4961 */ 4962 if (!hidden) 4963 win_append(after, new_wp); 4964 new_wp->w_wincol = 0; 4965 new_wp->w_width = Columns; 4966 4967 // position the display and the cursor at the top of the file. 4968 new_wp->w_topline = 1; 4969 #ifdef FEAT_DIFF 4970 new_wp->w_topfill = 0; 4971 #endif 4972 new_wp->w_botline = 2; 4973 new_wp->w_cursor.lnum = 1; 4974 new_wp->w_scbind_pos = 1; 4975 4976 // use global option value for global-local options 4977 new_wp->w_p_so = -1; 4978 new_wp->w_p_siso = -1; 4979 4980 // We won't calculate w_fraction until resizing the window 4981 new_wp->w_fraction = 0; 4982 new_wp->w_prev_fraction_row = -1; 4983 4984 #ifdef FEAT_GUI 4985 if (gui.in_use) 4986 { 4987 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_LEFT], 4988 SBAR_LEFT, new_wp); 4989 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_RIGHT], 4990 SBAR_RIGHT, new_wp); 4991 } 4992 #endif 4993 #ifdef FEAT_FOLDING 4994 foldInitWin(new_wp); 4995 #endif 4996 unblock_autocmds(); 4997 #ifdef FEAT_SEARCH_EXTRA 4998 new_wp->w_match_head = NULL; 4999 new_wp->w_next_match_id = 4; 5000 #endif 5001 return new_wp; 5002 } 5003 5004 /* 5005 * Remove window 'wp' from the window list and free the structure. 5006 */ 5007 static void 5008 win_free( 5009 win_T *wp, 5010 tabpage_T *tp) // tab page "win" is in, NULL for current 5011 { 5012 int i; 5013 buf_T *buf; 5014 wininfo_T *wip; 5015 5016 #ifdef FEAT_FOLDING 5017 clearFolding(wp); 5018 #endif 5019 5020 // reduce the reference count to the argument list. 5021 alist_unlink(wp->w_alist); 5022 5023 // Don't execute autocommands while the window is halfway being deleted. 5024 // gui_mch_destroy_scrollbar() may trigger a FocusGained event. 5025 block_autocmds(); 5026 5027 #ifdef FEAT_LUA 5028 lua_window_free(wp); 5029 #endif 5030 5031 #ifdef FEAT_MZSCHEME 5032 mzscheme_window_free(wp); 5033 #endif 5034 5035 #ifdef FEAT_PERL 5036 perl_win_free(wp); 5037 #endif 5038 5039 #ifdef FEAT_PYTHON 5040 python_window_free(wp); 5041 #endif 5042 5043 #ifdef FEAT_PYTHON3 5044 python3_window_free(wp); 5045 #endif 5046 5047 #ifdef FEAT_TCL 5048 tcl_window_free(wp); 5049 #endif 5050 5051 #ifdef FEAT_RUBY 5052 ruby_window_free(wp); 5053 #endif 5054 5055 clear_winopt(&wp->w_onebuf_opt); 5056 clear_winopt(&wp->w_allbuf_opt); 5057 5058 #ifdef FEAT_EVAL 5059 vars_clear(&wp->w_vars->dv_hashtab); // free all w: variables 5060 hash_init(&wp->w_vars->dv_hashtab); 5061 unref_var_dict(wp->w_vars); 5062 #endif 5063 5064 { 5065 tabpage_T *ttp; 5066 5067 if (prevwin == wp) 5068 prevwin = NULL; 5069 FOR_ALL_TABPAGES(ttp) 5070 if (ttp->tp_prevwin == wp) 5071 ttp->tp_prevwin = NULL; 5072 } 5073 win_free_lsize(wp); 5074 5075 for (i = 0; i < wp->w_tagstacklen; ++i) 5076 { 5077 vim_free(wp->w_tagstack[i].tagname); 5078 vim_free(wp->w_tagstack[i].user_data); 5079 } 5080 vim_free(wp->w_localdir); 5081 vim_free(wp->w_prevdir); 5082 5083 // Remove the window from the b_wininfo lists, it may happen that the 5084 // freed memory is re-used for another window. 5085 FOR_ALL_BUFFERS(buf) 5086 FOR_ALL_BUF_WININFO(buf, wip) 5087 if (wip->wi_win == wp) 5088 { 5089 wininfo_T *wip2; 5090 5091 // If there already is an entry with "wi_win" set to NULL it 5092 // must be removed, it would never be used. 5093 // Skip "wip" itself, otherwise Coverity complains. 5094 for (wip2 = buf->b_wininfo; wip2 != NULL; wip2 = wip2->wi_next) 5095 if (wip2 != wip && wip2->wi_win == NULL) 5096 { 5097 if (wip2->wi_next != NULL) 5098 wip2->wi_next->wi_prev = wip2->wi_prev; 5099 if (wip2->wi_prev == NULL) 5100 buf->b_wininfo = wip2->wi_next; 5101 else 5102 wip2->wi_prev->wi_next = wip2->wi_next; 5103 free_wininfo(wip2); 5104 break; 5105 } 5106 5107 wip->wi_win = NULL; 5108 } 5109 5110 #ifdef FEAT_SEARCH_EXTRA 5111 clear_matches(wp); 5112 #endif 5113 5114 #ifdef FEAT_JUMPLIST 5115 free_jumplist(wp); 5116 #endif 5117 5118 #ifdef FEAT_QUICKFIX 5119 qf_free_all(wp); 5120 #endif 5121 5122 #ifdef FEAT_GUI 5123 if (gui.in_use) 5124 { 5125 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_LEFT]); 5126 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_RIGHT]); 5127 } 5128 #endif // FEAT_GUI 5129 5130 #ifdef FEAT_MENU 5131 remove_winbar(wp); 5132 #endif 5133 #ifdef FEAT_PROP_POPUP 5134 free_callback(&wp->w_close_cb); 5135 free_callback(&wp->w_filter_cb); 5136 for (i = 0; i < 4; ++i) 5137 VIM_CLEAR(wp->w_border_highlight[i]); 5138 vim_free(wp->w_scrollbar_highlight); 5139 vim_free(wp->w_thumb_highlight); 5140 vim_free(wp->w_popup_title); 5141 list_unref(wp->w_popup_mask); 5142 vim_free(wp->w_popup_mask_cells); 5143 #endif 5144 5145 #ifdef FEAT_SYN_HL 5146 vim_free(wp->w_p_cc_cols); 5147 #endif 5148 5149 if (win_valid_any_tab(wp)) 5150 win_remove(wp, tp); 5151 if (autocmd_busy) 5152 { 5153 wp->w_next = au_pending_free_win; 5154 au_pending_free_win = wp; 5155 } 5156 else 5157 vim_free(wp); 5158 5159 unblock_autocmds(); 5160 } 5161 5162 /* 5163 * Return TRUE if "wp" is not in the list of windows: the autocmd window or a 5164 * popup window. 5165 */ 5166 static int 5167 win_unlisted(win_T *wp) 5168 { 5169 return wp == aucmd_win || WIN_IS_POPUP(wp); 5170 } 5171 5172 #if defined(FEAT_PROP_POPUP) || defined(PROTO) 5173 /* 5174 * Free a popup window. This does not take the window out of the window list 5175 * and assumes there is only one toplevel frame, no split. 5176 */ 5177 void 5178 win_free_popup(win_T *win) 5179 { 5180 if (bt_popup(win->w_buffer)) 5181 win_close_buffer(win, DOBUF_WIPE_REUSE, FALSE); 5182 else 5183 close_buffer(win, win->w_buffer, 0, FALSE, FALSE); 5184 # if defined(FEAT_TIMERS) 5185 if (win->w_popup_timer != NULL) 5186 stop_timer(win->w_popup_timer); 5187 # endif 5188 vim_free(win->w_frame); 5189 win_free(win, NULL); 5190 } 5191 #endif 5192 5193 /* 5194 * Append window "wp" in the window list after window "after". 5195 */ 5196 static void 5197 win_append(win_T *after, win_T *wp) 5198 { 5199 win_T *before; 5200 5201 if (after == NULL) // after NULL is in front of the first 5202 before = firstwin; 5203 else 5204 before = after->w_next; 5205 5206 wp->w_next = before; 5207 wp->w_prev = after; 5208 if (after == NULL) 5209 firstwin = wp; 5210 else 5211 after->w_next = wp; 5212 if (before == NULL) 5213 lastwin = wp; 5214 else 5215 before->w_prev = wp; 5216 } 5217 5218 /* 5219 * Remove a window from the window list. 5220 */ 5221 void 5222 win_remove( 5223 win_T *wp, 5224 tabpage_T *tp) // tab page "win" is in, NULL for current 5225 { 5226 if (wp->w_prev != NULL) 5227 wp->w_prev->w_next = wp->w_next; 5228 else if (tp == NULL) 5229 firstwin = curtab->tp_firstwin = wp->w_next; 5230 else 5231 tp->tp_firstwin = wp->w_next; 5232 5233 if (wp->w_next != NULL) 5234 wp->w_next->w_prev = wp->w_prev; 5235 else if (tp == NULL) 5236 lastwin = curtab->tp_lastwin = wp->w_prev; 5237 else 5238 tp->tp_lastwin = wp->w_prev; 5239 } 5240 5241 /* 5242 * Append frame "frp" in a frame list after frame "after". 5243 */ 5244 static void 5245 frame_append(frame_T *after, frame_T *frp) 5246 { 5247 frp->fr_next = after->fr_next; 5248 after->fr_next = frp; 5249 if (frp->fr_next != NULL) 5250 frp->fr_next->fr_prev = frp; 5251 frp->fr_prev = after; 5252 } 5253 5254 /* 5255 * Insert frame "frp" in a frame list before frame "before". 5256 */ 5257 static void 5258 frame_insert(frame_T *before, frame_T *frp) 5259 { 5260 frp->fr_next = before; 5261 frp->fr_prev = before->fr_prev; 5262 before->fr_prev = frp; 5263 if (frp->fr_prev != NULL) 5264 frp->fr_prev->fr_next = frp; 5265 else 5266 frp->fr_parent->fr_child = frp; 5267 } 5268 5269 /* 5270 * Remove a frame from a frame list. 5271 */ 5272 static void 5273 frame_remove(frame_T *frp) 5274 { 5275 if (frp->fr_prev != NULL) 5276 frp->fr_prev->fr_next = frp->fr_next; 5277 else 5278 { 5279 frp->fr_parent->fr_child = frp->fr_next; 5280 // special case: topframe->fr_child == frp 5281 if (topframe->fr_child == frp) 5282 topframe->fr_child = frp->fr_next; 5283 } 5284 if (frp->fr_next != NULL) 5285 frp->fr_next->fr_prev = frp->fr_prev; 5286 } 5287 5288 /* 5289 * Allocate w_lines[] for window "wp". 5290 * Return FAIL for failure, OK for success. 5291 */ 5292 int 5293 win_alloc_lines(win_T *wp) 5294 { 5295 wp->w_lines_valid = 0; 5296 wp->w_lines = ALLOC_CLEAR_MULT(wline_T, Rows ); 5297 if (wp->w_lines == NULL) 5298 return FAIL; 5299 return OK; 5300 } 5301 5302 /* 5303 * free lsize arrays for a window 5304 */ 5305 void 5306 win_free_lsize(win_T *wp) 5307 { 5308 // TODO: why would wp be NULL here? 5309 if (wp != NULL) 5310 VIM_CLEAR(wp->w_lines); 5311 } 5312 5313 /* 5314 * Called from win_new_shellsize() after Rows changed. 5315 * This only does the current tab page, others must be done when made active. 5316 */ 5317 void 5318 shell_new_rows(void) 5319 { 5320 int h = (int)ROWS_AVAIL; 5321 5322 if (firstwin == NULL) // not initialized yet 5323 return; 5324 if (h < frame_minheight(topframe, NULL)) 5325 h = frame_minheight(topframe, NULL); 5326 5327 // First try setting the heights of windows with 'winfixheight'. If 5328 // that doesn't result in the right height, forget about that option. 5329 frame_new_height(topframe, h, FALSE, TRUE); 5330 if (!frame_check_height(topframe, h)) 5331 frame_new_height(topframe, h, FALSE, FALSE); 5332 5333 (void)win_comp_pos(); // recompute w_winrow and w_wincol 5334 compute_cmdrow(); 5335 curtab->tp_ch_used = p_ch; 5336 5337 #if 0 5338 // Disabled: don't want making the screen smaller make a window larger. 5339 if (p_ea) 5340 win_equal(curwin, FALSE, 'v'); 5341 #endif 5342 } 5343 5344 /* 5345 * Called from win_new_shellsize() after Columns changed. 5346 */ 5347 void 5348 shell_new_columns(void) 5349 { 5350 if (firstwin == NULL) // not initialized yet 5351 return; 5352 5353 // First try setting the widths of windows with 'winfixwidth'. If that 5354 // doesn't result in the right width, forget about that option. 5355 frame_new_width(topframe, (int)Columns, FALSE, TRUE); 5356 if (!frame_check_width(topframe, Columns)) 5357 frame_new_width(topframe, (int)Columns, FALSE, FALSE); 5358 5359 (void)win_comp_pos(); // recompute w_winrow and w_wincol 5360 #if 0 5361 // Disabled: don't want making the screen smaller make a window larger. 5362 if (p_ea) 5363 win_equal(curwin, FALSE, 'h'); 5364 #endif 5365 } 5366 5367 #if defined(FEAT_CMDWIN) || defined(PROTO) 5368 /* 5369 * Save the size of all windows in "gap". 5370 */ 5371 void 5372 win_size_save(garray_T *gap) 5373 5374 { 5375 win_T *wp; 5376 5377 ga_init2(gap, (int)sizeof(int), 1); 5378 if (ga_grow(gap, win_count() * 2 + 1) == OK) 5379 { 5380 // first entry is value of 'lines' 5381 ((int *)gap->ga_data)[gap->ga_len++] = Rows; 5382 5383 FOR_ALL_WINDOWS(wp) 5384 { 5385 ((int *)gap->ga_data)[gap->ga_len++] = 5386 wp->w_width + wp->w_vsep_width; 5387 ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height; 5388 } 5389 } 5390 } 5391 5392 /* 5393 * Restore window sizes, but only if the number of windows is still the same 5394 * and 'lines' didn't change. 5395 * Does not free the growarray. 5396 */ 5397 void 5398 win_size_restore(garray_T *gap) 5399 { 5400 win_T *wp; 5401 int i, j; 5402 5403 if (win_count() * 2 + 1 == gap->ga_len 5404 && ((int *)gap->ga_data)[0] == Rows) 5405 { 5406 // The order matters, because frames contain other frames, but it's 5407 // difficult to get right. The easy way out is to do it twice. 5408 for (j = 0; j < 2; ++j) 5409 { 5410 i = 1; 5411 FOR_ALL_WINDOWS(wp) 5412 { 5413 frame_setwidth(wp->w_frame, ((int *)gap->ga_data)[i++]); 5414 win_setheight_win(((int *)gap->ga_data)[i++], wp); 5415 } 5416 } 5417 // recompute the window positions 5418 (void)win_comp_pos(); 5419 } 5420 } 5421 #endif // FEAT_CMDWIN 5422 5423 /* 5424 * Update the position for all windows, using the width and height of the 5425 * frames. 5426 * Returns the row just after the last window. 5427 */ 5428 int 5429 win_comp_pos(void) 5430 { 5431 int row = tabline_height(); 5432 int col = 0; 5433 5434 frame_comp_pos(topframe, &row, &col); 5435 return row; 5436 } 5437 5438 /* 5439 * Update the position of the windows in frame "topfrp", using the width and 5440 * height of the frames. 5441 * "*row" and "*col" are the top-left position of the frame. They are updated 5442 * to the bottom-right position plus one. 5443 */ 5444 static void 5445 frame_comp_pos(frame_T *topfrp, int *row, int *col) 5446 { 5447 win_T *wp; 5448 frame_T *frp; 5449 int startcol; 5450 int startrow; 5451 int h; 5452 5453 wp = topfrp->fr_win; 5454 if (wp != NULL) 5455 { 5456 if (wp->w_winrow != *row || wp->w_wincol != *col) 5457 { 5458 // position changed, redraw 5459 wp->w_winrow = *row; 5460 wp->w_wincol = *col; 5461 redraw_win_later(wp, NOT_VALID); 5462 wp->w_redr_status = TRUE; 5463 } 5464 // WinBar will not show if the window height is zero 5465 h = VISIBLE_HEIGHT(wp) + wp->w_status_height; 5466 *row += h > topfrp->fr_height ? topfrp->fr_height : h; 5467 *col += wp->w_width + wp->w_vsep_width; 5468 } 5469 else 5470 { 5471 startrow = *row; 5472 startcol = *col; 5473 FOR_ALL_FRAMES(frp, topfrp->fr_child) 5474 { 5475 if (topfrp->fr_layout == FR_ROW) 5476 *row = startrow; // all frames are at the same row 5477 else 5478 *col = startcol; // all frames are at the same col 5479 frame_comp_pos(frp, row, col); 5480 } 5481 } 5482 } 5483 5484 /* 5485 * Set current window height and take care of repositioning other windows to 5486 * fit around it. 5487 */ 5488 void 5489 win_setheight(int height) 5490 { 5491 win_setheight_win(height, curwin); 5492 } 5493 5494 /* 5495 * Set the window height of window "win" and take care of repositioning other 5496 * windows to fit around it. 5497 */ 5498 void 5499 win_setheight_win(int height, win_T *win) 5500 { 5501 int row; 5502 5503 if (win == curwin) 5504 { 5505 // Always keep current window at least one line high, even when 5506 // 'winminheight' is zero. 5507 if (height < p_wmh) 5508 height = p_wmh; 5509 if (height == 0) 5510 height = 1; 5511 height += WINBAR_HEIGHT(curwin); 5512 } 5513 5514 frame_setheight(win->w_frame, height + win->w_status_height); 5515 5516 // recompute the window positions 5517 row = win_comp_pos(); 5518 5519 /* 5520 * If there is extra space created between the last window and the command 5521 * line, clear it. 5522 */ 5523 if (full_screen && msg_scrolled == 0 && row < cmdline_row) 5524 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5525 cmdline_row = row; 5526 msg_row = row; 5527 msg_col = 0; 5528 5529 redraw_all_later(NOT_VALID); 5530 } 5531 5532 /* 5533 * Set the height of a frame to "height" and take care that all frames and 5534 * windows inside it are resized. Also resize frames on the left and right if 5535 * the are in the same FR_ROW frame. 5536 * 5537 * Strategy: 5538 * If the frame is part of a FR_COL frame, try fitting the frame in that 5539 * frame. If that doesn't work (the FR_COL frame is too small), recursively 5540 * go to containing frames to resize them and make room. 5541 * If the frame is part of a FR_ROW frame, all frames must be resized as well. 5542 * Check for the minimal height of the FR_ROW frame. 5543 * At the top level we can also use change the command line height. 5544 */ 5545 static void 5546 frame_setheight(frame_T *curfrp, int height) 5547 { 5548 int room; // total number of lines available 5549 int take; // number of lines taken from other windows 5550 int room_cmdline; // lines available from cmdline 5551 int run; 5552 frame_T *frp; 5553 int h; 5554 int room_reserved; 5555 5556 // If the height already is the desired value, nothing to do. 5557 if (curfrp->fr_height == height) 5558 return; 5559 5560 if (curfrp->fr_parent == NULL) 5561 { 5562 // topframe: can only change the command line 5563 if (height > ROWS_AVAIL) 5564 height = ROWS_AVAIL; 5565 if (height > 0) 5566 frame_new_height(curfrp, height, FALSE, FALSE); 5567 } 5568 else if (curfrp->fr_parent->fr_layout == FR_ROW) 5569 { 5570 // Row of frames: Also need to resize frames left and right of this 5571 // one. First check for the minimal height of these. 5572 h = frame_minheight(curfrp->fr_parent, NULL); 5573 if (height < h) 5574 height = h; 5575 frame_setheight(curfrp->fr_parent, height); 5576 } 5577 else 5578 { 5579 /* 5580 * Column of frames: try to change only frames in this column. 5581 */ 5582 /* 5583 * Do this twice: 5584 * 1: compute room available, if it's not enough try resizing the 5585 * containing frame. 5586 * 2: compute the room available and adjust the height to it. 5587 * Try not to reduce the height of a window with 'winfixheight' set. 5588 */ 5589 for (run = 1; run <= 2; ++run) 5590 { 5591 room = 0; 5592 room_reserved = 0; 5593 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5594 { 5595 if (frp != curfrp 5596 && frp->fr_win != NULL 5597 && frp->fr_win->w_p_wfh) 5598 room_reserved += frp->fr_height; 5599 room += frp->fr_height; 5600 if (frp != curfrp) 5601 room -= frame_minheight(frp, NULL); 5602 } 5603 if (curfrp->fr_width != Columns) 5604 room_cmdline = 0; 5605 else 5606 { 5607 room_cmdline = Rows - p_ch - (lastwin->w_winrow 5608 + VISIBLE_HEIGHT(lastwin) 5609 + lastwin->w_status_height); 5610 if (room_cmdline < 0) 5611 room_cmdline = 0; 5612 } 5613 5614 if (height <= room + room_cmdline) 5615 break; 5616 if (run == 2 || curfrp->fr_width == Columns) 5617 { 5618 if (height > room + room_cmdline) 5619 height = room + room_cmdline; 5620 break; 5621 } 5622 frame_setheight(curfrp->fr_parent, height 5623 + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1); 5624 } 5625 5626 /* 5627 * Compute the number of lines we will take from others frames (can be 5628 * negative!). 5629 */ 5630 take = height - curfrp->fr_height; 5631 5632 // If there is not enough room, also reduce the height of a window 5633 // with 'winfixheight' set. 5634 if (height > room + room_cmdline - room_reserved) 5635 room_reserved = room + room_cmdline - height; 5636 // If there is only a 'winfixheight' window and making the 5637 // window smaller, need to make the other window taller. 5638 if (take < 0 && room - curfrp->fr_height < room_reserved) 5639 room_reserved = 0; 5640 5641 if (take > 0 && room_cmdline > 0) 5642 { 5643 // use lines from cmdline first 5644 if (take < room_cmdline) 5645 room_cmdline = take; 5646 take -= room_cmdline; 5647 topframe->fr_height += room_cmdline; 5648 } 5649 5650 /* 5651 * set the current frame to the new height 5652 */ 5653 frame_new_height(curfrp, height, FALSE, FALSE); 5654 5655 /* 5656 * First take lines from the frames after the current frame. If 5657 * that is not enough, takes lines from frames above the current 5658 * frame. 5659 */ 5660 for (run = 0; run < 2; ++run) 5661 { 5662 if (run == 0) 5663 frp = curfrp->fr_next; // 1st run: start with next window 5664 else 5665 frp = curfrp->fr_prev; // 2nd run: start with prev window 5666 while (frp != NULL && take != 0) 5667 { 5668 h = frame_minheight(frp, NULL); 5669 if (room_reserved > 0 5670 && frp->fr_win != NULL 5671 && frp->fr_win->w_p_wfh) 5672 { 5673 if (room_reserved >= frp->fr_height) 5674 room_reserved -= frp->fr_height; 5675 else 5676 { 5677 if (frp->fr_height - room_reserved > take) 5678 room_reserved = frp->fr_height - take; 5679 take -= frp->fr_height - room_reserved; 5680 frame_new_height(frp, room_reserved, FALSE, FALSE); 5681 room_reserved = 0; 5682 } 5683 } 5684 else 5685 { 5686 if (frp->fr_height - take < h) 5687 { 5688 take -= frp->fr_height - h; 5689 frame_new_height(frp, h, FALSE, FALSE); 5690 } 5691 else 5692 { 5693 frame_new_height(frp, frp->fr_height - take, 5694 FALSE, FALSE); 5695 take = 0; 5696 } 5697 } 5698 if (run == 0) 5699 frp = frp->fr_next; 5700 else 5701 frp = frp->fr_prev; 5702 } 5703 } 5704 } 5705 } 5706 5707 /* 5708 * Set current window width and take care of repositioning other windows to 5709 * fit around it. 5710 */ 5711 void 5712 win_setwidth(int width) 5713 { 5714 win_setwidth_win(width, curwin); 5715 } 5716 5717 void 5718 win_setwidth_win(int width, win_T *wp) 5719 { 5720 // Always keep current window at least one column wide, even when 5721 // 'winminwidth' is zero. 5722 if (wp == curwin) 5723 { 5724 if (width < p_wmw) 5725 width = p_wmw; 5726 if (width == 0) 5727 width = 1; 5728 } 5729 else if (width < 0) 5730 width = 0; 5731 5732 frame_setwidth(wp->w_frame, width + wp->w_vsep_width); 5733 5734 // recompute the window positions 5735 (void)win_comp_pos(); 5736 5737 redraw_all_later(NOT_VALID); 5738 } 5739 5740 /* 5741 * Set the width of a frame to "width" and take care that all frames and 5742 * windows inside it are resized. Also resize frames above and below if the 5743 * are in the same FR_ROW frame. 5744 * 5745 * Strategy is similar to frame_setheight(). 5746 */ 5747 static void 5748 frame_setwidth(frame_T *curfrp, int width) 5749 { 5750 int room; // total number of lines available 5751 int take; // number of lines taken from other windows 5752 int run; 5753 frame_T *frp; 5754 int w; 5755 int room_reserved; 5756 5757 // If the width already is the desired value, nothing to do. 5758 if (curfrp->fr_width == width) 5759 return; 5760 5761 if (curfrp->fr_parent == NULL) 5762 // topframe: can't change width 5763 return; 5764 5765 if (curfrp->fr_parent->fr_layout == FR_COL) 5766 { 5767 // Column of frames: Also need to resize frames above and below of 5768 // this one. First check for the minimal width of these. 5769 w = frame_minwidth(curfrp->fr_parent, NULL); 5770 if (width < w) 5771 width = w; 5772 frame_setwidth(curfrp->fr_parent, width); 5773 } 5774 else 5775 { 5776 /* 5777 * Row of frames: try to change only frames in this row. 5778 * 5779 * Do this twice: 5780 * 1: compute room available, if it's not enough try resizing the 5781 * containing frame. 5782 * 2: compute the room available and adjust the width to it. 5783 */ 5784 for (run = 1; run <= 2; ++run) 5785 { 5786 room = 0; 5787 room_reserved = 0; 5788 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5789 { 5790 if (frp != curfrp 5791 && frp->fr_win != NULL 5792 && frp->fr_win->w_p_wfw) 5793 room_reserved += frp->fr_width; 5794 room += frp->fr_width; 5795 if (frp != curfrp) 5796 room -= frame_minwidth(frp, NULL); 5797 } 5798 5799 if (width <= room) 5800 break; 5801 if (run == 2 || curfrp->fr_height >= ROWS_AVAIL) 5802 { 5803 if (width > room) 5804 width = room; 5805 break; 5806 } 5807 frame_setwidth(curfrp->fr_parent, width 5808 + frame_minwidth(curfrp->fr_parent, NOWIN) - (int)p_wmw - 1); 5809 } 5810 5811 /* 5812 * Compute the number of lines we will take from others frames (can be 5813 * negative!). 5814 */ 5815 take = width - curfrp->fr_width; 5816 5817 // If there is not enough room, also reduce the width of a window 5818 // with 'winfixwidth' set. 5819 if (width > room - room_reserved) 5820 room_reserved = room - width; 5821 // If there is only a 'winfixwidth' window and making the 5822 // window smaller, need to make the other window narrower. 5823 if (take < 0 && room - curfrp->fr_width < room_reserved) 5824 room_reserved = 0; 5825 5826 /* 5827 * set the current frame to the new width 5828 */ 5829 frame_new_width(curfrp, width, FALSE, FALSE); 5830 5831 /* 5832 * First take lines from the frames right of the current frame. If 5833 * that is not enough, takes lines from frames left of the current 5834 * frame. 5835 */ 5836 for (run = 0; run < 2; ++run) 5837 { 5838 if (run == 0) 5839 frp = curfrp->fr_next; // 1st run: start with next window 5840 else 5841 frp = curfrp->fr_prev; // 2nd run: start with prev window 5842 while (frp != NULL && take != 0) 5843 { 5844 w = frame_minwidth(frp, NULL); 5845 if (room_reserved > 0 5846 && frp->fr_win != NULL 5847 && frp->fr_win->w_p_wfw) 5848 { 5849 if (room_reserved >= frp->fr_width) 5850 room_reserved -= frp->fr_width; 5851 else 5852 { 5853 if (frp->fr_width - room_reserved > take) 5854 room_reserved = frp->fr_width - take; 5855 take -= frp->fr_width - room_reserved; 5856 frame_new_width(frp, room_reserved, FALSE, FALSE); 5857 room_reserved = 0; 5858 } 5859 } 5860 else 5861 { 5862 if (frp->fr_width - take < w) 5863 { 5864 take -= frp->fr_width - w; 5865 frame_new_width(frp, w, FALSE, FALSE); 5866 } 5867 else 5868 { 5869 frame_new_width(frp, frp->fr_width - take, 5870 FALSE, FALSE); 5871 take = 0; 5872 } 5873 } 5874 if (run == 0) 5875 frp = frp->fr_next; 5876 else 5877 frp = frp->fr_prev; 5878 } 5879 } 5880 } 5881 } 5882 5883 /* 5884 * Check 'winminheight' for a valid value and reduce it if needed. 5885 */ 5886 void 5887 win_setminheight(void) 5888 { 5889 int room; 5890 int needed; 5891 int first = TRUE; 5892 5893 // loop until there is a 'winminheight' that is possible 5894 while (p_wmh > 0) 5895 { 5896 room = Rows - p_ch; 5897 needed = min_rows() - 1; // 1 was added for the cmdline 5898 if (room >= needed) 5899 break; 5900 --p_wmh; 5901 if (first) 5902 { 5903 emsg(_(e_not_enough_room)); 5904 first = FALSE; 5905 } 5906 } 5907 } 5908 5909 /* 5910 * Check 'winminwidth' for a valid value and reduce it if needed. 5911 */ 5912 void 5913 win_setminwidth(void) 5914 { 5915 int room; 5916 int needed; 5917 int first = TRUE; 5918 5919 // loop until there is a 'winminheight' that is possible 5920 while (p_wmw > 0) 5921 { 5922 room = Columns; 5923 needed = frame_minwidth(topframe, NULL); 5924 if (room >= needed) 5925 break; 5926 --p_wmw; 5927 if (first) 5928 { 5929 emsg(_(e_not_enough_room)); 5930 first = FALSE; 5931 } 5932 } 5933 } 5934 5935 /* 5936 * Status line of dragwin is dragged "offset" lines down (negative is up). 5937 */ 5938 void 5939 win_drag_status_line(win_T *dragwin, int offset) 5940 { 5941 frame_T *curfr; 5942 frame_T *fr; 5943 int room; 5944 int row; 5945 int up; // if TRUE, drag status line up, otherwise down 5946 int n; 5947 5948 fr = dragwin->w_frame; 5949 curfr = fr; 5950 if (fr != topframe) // more than one window 5951 { 5952 fr = fr->fr_parent; 5953 // When the parent frame is not a column of frames, its parent should 5954 // be. 5955 if (fr->fr_layout != FR_COL) 5956 { 5957 curfr = fr; 5958 if (fr != topframe) // only a row of windows, may drag statusline 5959 fr = fr->fr_parent; 5960 } 5961 } 5962 5963 // If this is the last frame in a column, may want to resize the parent 5964 // frame instead (go two up to skip a row of frames). 5965 while (curfr != topframe && curfr->fr_next == NULL) 5966 { 5967 if (fr != topframe) 5968 fr = fr->fr_parent; 5969 curfr = fr; 5970 if (fr != topframe) 5971 fr = fr->fr_parent; 5972 } 5973 5974 if (offset < 0) // drag up 5975 { 5976 up = TRUE; 5977 offset = -offset; 5978 // sum up the room of the current frame and above it 5979 if (fr == curfr) 5980 { 5981 // only one window 5982 room = fr->fr_height - frame_minheight(fr, NULL); 5983 } 5984 else 5985 { 5986 room = 0; 5987 for (fr = fr->fr_child; ; fr = fr->fr_next) 5988 { 5989 room += fr->fr_height - frame_minheight(fr, NULL); 5990 if (fr == curfr) 5991 break; 5992 } 5993 } 5994 fr = curfr->fr_next; // put fr at frame that grows 5995 } 5996 else // drag down 5997 { 5998 up = FALSE; 5999 /* 6000 * Only dragging the last status line can reduce p_ch. 6001 */ 6002 room = Rows - cmdline_row; 6003 if (curfr->fr_next == NULL) 6004 room -= 1; 6005 else 6006 room -= p_ch; 6007 if (room < 0) 6008 room = 0; 6009 // sum up the room of frames below of the current one 6010 FOR_ALL_FRAMES(fr, curfr->fr_next) 6011 room += fr->fr_height - frame_minheight(fr, NULL); 6012 fr = curfr; // put fr at window that grows 6013 } 6014 6015 if (room < offset) // Not enough room 6016 offset = room; // Move as far as we can 6017 if (offset <= 0) 6018 return; 6019 6020 /* 6021 * Grow frame fr by "offset" lines. 6022 * Doesn't happen when dragging the last status line up. 6023 */ 6024 if (fr != NULL) 6025 frame_new_height(fr, fr->fr_height + offset, up, FALSE); 6026 6027 if (up) 6028 fr = curfr; // current frame gets smaller 6029 else 6030 fr = curfr->fr_next; // next frame gets smaller 6031 6032 /* 6033 * Now make the other frames smaller. 6034 */ 6035 while (fr != NULL && offset > 0) 6036 { 6037 n = frame_minheight(fr, NULL); 6038 if (fr->fr_height - offset <= n) 6039 { 6040 offset -= fr->fr_height - n; 6041 frame_new_height(fr, n, !up, FALSE); 6042 } 6043 else 6044 { 6045 frame_new_height(fr, fr->fr_height - offset, !up, FALSE); 6046 break; 6047 } 6048 if (up) 6049 fr = fr->fr_prev; 6050 else 6051 fr = fr->fr_next; 6052 } 6053 row = win_comp_pos(); 6054 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 6055 cmdline_row = row; 6056 p_ch = Rows - cmdline_row; 6057 if (p_ch < 1) 6058 p_ch = 1; 6059 curtab->tp_ch_used = p_ch; 6060 redraw_all_later(SOME_VALID); 6061 showmode(); 6062 } 6063 6064 /* 6065 * Separator line of dragwin is dragged "offset" lines right (negative is left). 6066 */ 6067 void 6068 win_drag_vsep_line(win_T *dragwin, int offset) 6069 { 6070 frame_T *curfr; 6071 frame_T *fr; 6072 int room; 6073 int left; // if TRUE, drag separator line left, otherwise right 6074 int n; 6075 6076 fr = dragwin->w_frame; 6077 if (fr == topframe) // only one window (cannot happen?) 6078 return; 6079 curfr = fr; 6080 fr = fr->fr_parent; 6081 // When the parent frame is not a row of frames, its parent should be. 6082 if (fr->fr_layout != FR_ROW) 6083 { 6084 if (fr == topframe) // only a column of windows (cannot happen?) 6085 return; 6086 curfr = fr; 6087 fr = fr->fr_parent; 6088 } 6089 6090 // If this is the last frame in a row, may want to resize a parent 6091 // frame instead. 6092 while (curfr->fr_next == NULL) 6093 { 6094 if (fr == topframe) 6095 break; 6096 curfr = fr; 6097 fr = fr->fr_parent; 6098 if (fr != topframe) 6099 { 6100 curfr = fr; 6101 fr = fr->fr_parent; 6102 } 6103 } 6104 6105 if (offset < 0) // drag left 6106 { 6107 left = TRUE; 6108 offset = -offset; 6109 // sum up the room of the current frame and left of it 6110 room = 0; 6111 for (fr = fr->fr_child; ; fr = fr->fr_next) 6112 { 6113 room += fr->fr_width - frame_minwidth(fr, NULL); 6114 if (fr == curfr) 6115 break; 6116 } 6117 fr = curfr->fr_next; // put fr at frame that grows 6118 } 6119 else // drag right 6120 { 6121 left = FALSE; 6122 // sum up the room of frames right of the current one 6123 room = 0; 6124 FOR_ALL_FRAMES(fr, curfr->fr_next) 6125 room += fr->fr_width - frame_minwidth(fr, NULL); 6126 fr = curfr; // put fr at window that grows 6127 } 6128 6129 if (room < offset) // Not enough room 6130 offset = room; // Move as far as we can 6131 if (offset <= 0) // No room at all, quit. 6132 return; 6133 if (fr == NULL) 6134 return; // Safety check, should not happen. 6135 6136 // grow frame fr by offset lines 6137 frame_new_width(fr, fr->fr_width + offset, left, FALSE); 6138 6139 // shrink other frames: current and at the left or at the right 6140 if (left) 6141 fr = curfr; // current frame gets smaller 6142 else 6143 fr = curfr->fr_next; // next frame gets smaller 6144 6145 while (fr != NULL && offset > 0) 6146 { 6147 n = frame_minwidth(fr, NULL); 6148 if (fr->fr_width - offset <= n) 6149 { 6150 offset -= fr->fr_width - n; 6151 frame_new_width(fr, n, !left, FALSE); 6152 } 6153 else 6154 { 6155 frame_new_width(fr, fr->fr_width - offset, !left, FALSE); 6156 break; 6157 } 6158 if (left) 6159 fr = fr->fr_prev; 6160 else 6161 fr = fr->fr_next; 6162 } 6163 (void)win_comp_pos(); 6164 redraw_all_later(NOT_VALID); 6165 } 6166 6167 #define FRACTION_MULT 16384L 6168 6169 /* 6170 * Set wp->w_fraction for the current w_wrow and w_height. 6171 * Has no effect when the window is less than two lines. 6172 */ 6173 void 6174 set_fraction(win_T *wp) 6175 { 6176 if (wp->w_height > 1) 6177 // When cursor is in the first line the percentage is computed as if 6178 // it's halfway that line. Thus with two lines it is 25%, with three 6179 // lines 17%, etc. Similarly for the last line: 75%, 83%, etc. 6180 wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT 6181 + FRACTION_MULT / 2) / (long)wp->w_height; 6182 } 6183 6184 /* 6185 * Set the height of a window. 6186 * "height" excludes any window toolbar. 6187 * This takes care of the things inside the window, not what happens to the 6188 * window position, the frame or to other windows. 6189 */ 6190 void 6191 win_new_height(win_T *wp, int height) 6192 { 6193 int prev_height = wp->w_height; 6194 6195 // Don't want a negative height. Happens when splitting a tiny window. 6196 // Will equalize heights soon to fix it. 6197 if (height < 0) 6198 height = 0; 6199 if (wp->w_height == height) 6200 return; // nothing to do 6201 6202 if (wp->w_height > 0) 6203 { 6204 if (wp == curwin) 6205 // w_wrow needs to be valid. When setting 'laststatus' this may 6206 // call win_new_height() recursively. 6207 validate_cursor(); 6208 if (wp->w_height != prev_height) 6209 return; // Recursive call already changed the size, bail out here 6210 // to avoid the following to mess things up. 6211 if (wp->w_wrow != wp->w_prev_fraction_row) 6212 set_fraction(wp); 6213 } 6214 6215 wp->w_height = height; 6216 wp->w_skipcol = 0; 6217 6218 // There is no point in adjusting the scroll position when exiting. Some 6219 // values might be invalid. 6220 if (!exiting) 6221 scroll_to_fraction(wp, prev_height); 6222 } 6223 6224 void 6225 scroll_to_fraction(win_T *wp, int prev_height) 6226 { 6227 linenr_T lnum; 6228 int sline, line_size; 6229 int height = wp->w_height; 6230 6231 // Don't change w_topline in any of these cases: 6232 // - window height is 0 6233 // - 'scrollbind' is set and this isn't the current window 6234 // - window height is sufficient to display the whole buffer and first line 6235 // is visible. 6236 if (height > 0 6237 && (!wp->w_p_scb || wp == curwin) 6238 && (height < wp->w_buffer->b_ml.ml_line_count || wp->w_topline > 1)) 6239 { 6240 /* 6241 * Find a value for w_topline that shows the cursor at the same 6242 * relative position in the window as before (more or less). 6243 */ 6244 lnum = wp->w_cursor.lnum; 6245 if (lnum < 1) // can happen when starting up 6246 lnum = 1; 6247 wp->w_wrow = ((long)wp->w_fraction * (long)height - 1L) 6248 / FRACTION_MULT; 6249 line_size = plines_win_col(wp, lnum, (long)(wp->w_cursor.col)) - 1; 6250 sline = wp->w_wrow - line_size; 6251 6252 if (sline >= 0) 6253 { 6254 // Make sure the whole cursor line is visible, if possible. 6255 int rows = plines_win(wp, lnum, FALSE); 6256 6257 if (sline > wp->w_height - rows) 6258 { 6259 sline = wp->w_height - rows; 6260 wp->w_wrow -= rows - line_size; 6261 } 6262 } 6263 6264 if (sline < 0) 6265 { 6266 /* 6267 * Cursor line would go off top of screen if w_wrow was this high. 6268 * Make cursor line the first line in the window. If not enough 6269 * room use w_skipcol; 6270 */ 6271 wp->w_wrow = line_size; 6272 if (wp->w_wrow >= wp->w_height 6273 && (wp->w_width - win_col_off(wp)) > 0) 6274 { 6275 wp->w_skipcol += wp->w_width - win_col_off(wp); 6276 --wp->w_wrow; 6277 while (wp->w_wrow >= wp->w_height) 6278 { 6279 wp->w_skipcol += wp->w_width - win_col_off(wp) 6280 + win_col_off2(wp); 6281 --wp->w_wrow; 6282 } 6283 } 6284 } 6285 else if (sline > 0) 6286 { 6287 while (sline > 0 && lnum > 1) 6288 { 6289 #ifdef FEAT_FOLDING 6290 hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); 6291 if (lnum == 1) 6292 { 6293 // first line in buffer is folded 6294 line_size = 1; 6295 --sline; 6296 break; 6297 } 6298 #endif 6299 --lnum; 6300 #ifdef FEAT_DIFF 6301 if (lnum == wp->w_topline) 6302 line_size = plines_win_nofill(wp, lnum, TRUE) 6303 + wp->w_topfill; 6304 else 6305 #endif 6306 line_size = plines_win(wp, lnum, TRUE); 6307 sline -= line_size; 6308 } 6309 6310 if (sline < 0) 6311 { 6312 /* 6313 * Line we want at top would go off top of screen. Use next 6314 * line instead. 6315 */ 6316 #ifdef FEAT_FOLDING 6317 hasFoldingWin(wp, lnum, NULL, &lnum, TRUE, NULL); 6318 #endif 6319 lnum++; 6320 wp->w_wrow -= line_size + sline; 6321 } 6322 else if (sline > 0) 6323 { 6324 // First line of file reached, use that as topline. 6325 lnum = 1; 6326 wp->w_wrow -= sline; 6327 } 6328 } 6329 set_topline(wp, lnum); 6330 } 6331 6332 if (wp == curwin) 6333 { 6334 if (get_scrolloff_value()) 6335 update_topline(); 6336 curs_columns(FALSE); // validate w_wrow 6337 } 6338 if (prev_height > 0) 6339 wp->w_prev_fraction_row = wp->w_wrow; 6340 6341 win_comp_scroll(wp); 6342 redraw_win_later(wp, SOME_VALID); 6343 wp->w_redr_status = TRUE; 6344 invalidate_botline_win(wp); 6345 } 6346 6347 /* 6348 * Set the width of a window. 6349 */ 6350 void 6351 win_new_width(win_T *wp, int width) 6352 { 6353 wp->w_width = width; 6354 wp->w_lines_valid = 0; 6355 changed_line_abv_curs_win(wp); 6356 invalidate_botline_win(wp); 6357 if (wp == curwin) 6358 { 6359 update_topline(); 6360 curs_columns(TRUE); // validate w_wrow 6361 } 6362 redraw_win_later(wp, NOT_VALID); 6363 wp->w_redr_status = TRUE; 6364 } 6365 6366 void 6367 win_comp_scroll(win_T *wp) 6368 { 6369 #if defined(FEAT_EVAL) 6370 int old_w_p_scr = wp->w_p_scr; 6371 #endif 6372 6373 wp->w_p_scr = ((unsigned)wp->w_height >> 1); 6374 if (wp->w_p_scr == 0) 6375 wp->w_p_scr = 1; 6376 #if defined(FEAT_EVAL) 6377 if (wp->w_p_scr != old_w_p_scr) 6378 { 6379 // Used by "verbose set scroll". 6380 wp->w_p_script_ctx[WV_SCROLL].sc_sid = SID_WINLAYOUT; 6381 wp->w_p_script_ctx[WV_SCROLL].sc_lnum = 0; 6382 } 6383 #endif 6384 } 6385 6386 /* 6387 * command_height: called whenever p_ch has been changed 6388 */ 6389 void 6390 command_height(void) 6391 { 6392 int h; 6393 frame_T *frp; 6394 int old_p_ch = curtab->tp_ch_used; 6395 6396 // Use the value of p_ch that we remembered. This is needed for when the 6397 // GUI starts up, we can't be sure in what order things happen. And when 6398 // p_ch was changed in another tab page. 6399 curtab->tp_ch_used = p_ch; 6400 6401 // Find bottom frame with width of screen. 6402 frp = lastwin->w_frame; 6403 while (frp->fr_width != Columns && frp->fr_parent != NULL) 6404 frp = frp->fr_parent; 6405 6406 // Avoid changing the height of a window with 'winfixheight' set. 6407 while (frp->fr_prev != NULL && frp->fr_layout == FR_LEAF 6408 && frp->fr_win->w_p_wfh) 6409 frp = frp->fr_prev; 6410 6411 if (starting != NO_SCREEN) 6412 { 6413 cmdline_row = Rows - p_ch; 6414 6415 if (p_ch > old_p_ch) // p_ch got bigger 6416 { 6417 while (p_ch > old_p_ch) 6418 { 6419 if (frp == NULL) 6420 { 6421 emsg(_(e_not_enough_room)); 6422 p_ch = old_p_ch; 6423 curtab->tp_ch_used = p_ch; 6424 cmdline_row = Rows - p_ch; 6425 break; 6426 } 6427 h = frp->fr_height - frame_minheight(frp, NULL); 6428 if (h > p_ch - old_p_ch) 6429 h = p_ch - old_p_ch; 6430 old_p_ch += h; 6431 frame_add_height(frp, -h); 6432 frp = frp->fr_prev; 6433 } 6434 6435 // Recompute window positions. 6436 (void)win_comp_pos(); 6437 6438 // clear the lines added to cmdline 6439 if (full_screen) 6440 screen_fill((int)(cmdline_row), (int)Rows, 0, 6441 (int)Columns, ' ', ' ', 0); 6442 msg_row = cmdline_row; 6443 redraw_cmdline = TRUE; 6444 return; 6445 } 6446 6447 if (msg_row < cmdline_row) 6448 msg_row = cmdline_row; 6449 redraw_cmdline = TRUE; 6450 } 6451 frame_add_height(frp, (int)(old_p_ch - p_ch)); 6452 6453 // Recompute window positions. 6454 if (frp != lastwin->w_frame) 6455 (void)win_comp_pos(); 6456 } 6457 6458 /* 6459 * Resize frame "frp" to be "n" lines higher (negative for less high). 6460 * Also resize the frames it is contained in. 6461 */ 6462 static void 6463 frame_add_height(frame_T *frp, int n) 6464 { 6465 frame_new_height(frp, frp->fr_height + n, FALSE, FALSE); 6466 for (;;) 6467 { 6468 frp = frp->fr_parent; 6469 if (frp == NULL) 6470 break; 6471 frp->fr_height += n; 6472 } 6473 } 6474 6475 /* 6476 * Add or remove a status line for the bottom window(s), according to the 6477 * value of 'laststatus'. 6478 */ 6479 void 6480 last_status( 6481 int morewin) // pretend there are two or more windows 6482 { 6483 // Don't make a difference between horizontal or vertical split. 6484 last_status_rec(topframe, (p_ls == 2 6485 || (p_ls == 1 && (morewin || !ONE_WINDOW)))); 6486 } 6487 6488 static void 6489 last_status_rec(frame_T *fr, int statusline) 6490 { 6491 frame_T *fp; 6492 win_T *wp; 6493 6494 if (fr->fr_layout == FR_LEAF) 6495 { 6496 wp = fr->fr_win; 6497 if (wp->w_status_height != 0 && !statusline) 6498 { 6499 // remove status line 6500 win_new_height(wp, wp->w_height + 1); 6501 wp->w_status_height = 0; 6502 comp_col(); 6503 } 6504 else if (wp->w_status_height == 0 && statusline) 6505 { 6506 // Find a frame to take a line from. 6507 fp = fr; 6508 while (fp->fr_height <= frame_minheight(fp, NULL)) 6509 { 6510 if (fp == topframe) 6511 { 6512 emsg(_(e_not_enough_room)); 6513 return; 6514 } 6515 // In a column of frames: go to frame above. If already at 6516 // the top or in a row of frames: go to parent. 6517 if (fp->fr_parent->fr_layout == FR_COL && fp->fr_prev != NULL) 6518 fp = fp->fr_prev; 6519 else 6520 fp = fp->fr_parent; 6521 } 6522 wp->w_status_height = 1; 6523 if (fp != fr) 6524 { 6525 frame_new_height(fp, fp->fr_height - 1, FALSE, FALSE); 6526 frame_fix_height(wp); 6527 (void)win_comp_pos(); 6528 } 6529 else 6530 win_new_height(wp, wp->w_height - 1); 6531 comp_col(); 6532 redraw_all_later(SOME_VALID); 6533 } 6534 } 6535 else if (fr->fr_layout == FR_ROW) 6536 { 6537 // vertically split windows, set status line for each one 6538 FOR_ALL_FRAMES(fp, fr->fr_child) 6539 last_status_rec(fp, statusline); 6540 } 6541 else 6542 { 6543 // horizontally split window, set status line for last one 6544 for (fp = fr->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 6545 ; 6546 last_status_rec(fp, statusline); 6547 } 6548 } 6549 6550 /* 6551 * Return the number of lines used by the tab page line. 6552 */ 6553 int 6554 tabline_height(void) 6555 { 6556 #ifdef FEAT_GUI_TABLINE 6557 // When the GUI has the tabline then this always returns zero. 6558 if (gui_use_tabline()) 6559 return 0; 6560 #endif 6561 switch (p_stal) 6562 { 6563 case 0: return 0; 6564 case 1: return (first_tabpage->tp_next == NULL) ? 0 : 1; 6565 } 6566 return 1; 6567 } 6568 6569 /* 6570 * Return the minimal number of rows that is needed on the screen to display 6571 * the current number of windows. 6572 */ 6573 int 6574 min_rows(void) 6575 { 6576 int total; 6577 tabpage_T *tp; 6578 int n; 6579 6580 if (firstwin == NULL) // not initialized yet 6581 return MIN_LINES; 6582 6583 total = 0; 6584 FOR_ALL_TABPAGES(tp) 6585 { 6586 n = frame_minheight(tp->tp_topframe, NULL); 6587 if (total < n) 6588 total = n; 6589 } 6590 total += tabline_height(); 6591 total += 1; // count the room for the command line 6592 return total; 6593 } 6594 6595 /* 6596 * Return TRUE if there is only one window and only one tab page, not 6597 * counting a help or preview window, unless it is the current window. 6598 * Does not count unlisted windows. 6599 */ 6600 int 6601 only_one_window(void) 6602 { 6603 int count = 0; 6604 win_T *wp; 6605 6606 #if defined(FEAT_PROP_POPUP) 6607 // If the current window is a popup then there always is another window. 6608 if (popup_is_popup(curwin)) 6609 return FALSE; 6610 #endif 6611 6612 // If there is another tab page there always is another window. 6613 if (first_tabpage->tp_next != NULL) 6614 return FALSE; 6615 6616 FOR_ALL_WINDOWS(wp) 6617 if (wp->w_buffer != NULL 6618 && (!((bt_help(wp->w_buffer) && !bt_help(curbuf)) 6619 # ifdef FEAT_QUICKFIX 6620 || wp->w_p_pvw 6621 # endif 6622 ) || wp == curwin) && wp != aucmd_win) 6623 ++count; 6624 return (count <= 1); 6625 } 6626 6627 /* 6628 * Correct the cursor line number in other windows. Used after changing the 6629 * current buffer, and before applying autocommands. 6630 * When "do_curwin" is TRUE, also check current window. 6631 */ 6632 void 6633 check_lnums(int do_curwin) 6634 { 6635 win_T *wp; 6636 tabpage_T *tp; 6637 6638 FOR_ALL_TAB_WINDOWS(tp, wp) 6639 if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) 6640 { 6641 // save the original cursor position and topline 6642 wp->w_save_cursor.w_cursor_save = wp->w_cursor; 6643 wp->w_save_cursor.w_topline_save = wp->w_topline; 6644 6645 if (wp->w_cursor.lnum > curbuf->b_ml.ml_line_count) 6646 wp->w_cursor.lnum = curbuf->b_ml.ml_line_count; 6647 if (wp->w_topline > curbuf->b_ml.ml_line_count) 6648 wp->w_topline = curbuf->b_ml.ml_line_count; 6649 6650 // save the corrected cursor position and topline 6651 wp->w_save_cursor.w_cursor_corr = wp->w_cursor; 6652 wp->w_save_cursor.w_topline_corr = wp->w_topline; 6653 } 6654 } 6655 6656 /* 6657 * Reset cursor and topline to its stored values from check_lnums(). 6658 * check_lnums() must have been called first! 6659 */ 6660 void 6661 reset_lnums() 6662 { 6663 win_T *wp; 6664 tabpage_T *tp; 6665 6666 FOR_ALL_TAB_WINDOWS(tp, wp) 6667 if (wp->w_buffer == curbuf) 6668 { 6669 // Restore the value if the autocommand didn't change it. 6670 if (EQUAL_POS(wp->w_save_cursor.w_cursor_corr, wp->w_cursor)) 6671 wp->w_cursor = wp->w_save_cursor.w_cursor_save; 6672 if (wp->w_save_cursor.w_topline_corr == wp->w_topline) 6673 wp->w_topline = wp->w_save_cursor.w_topline_save; 6674 } 6675 } 6676 6677 /* 6678 * A snapshot of the window sizes, to restore them after closing the help 6679 * window. 6680 * Only these fields are used: 6681 * fr_layout 6682 * fr_width 6683 * fr_height 6684 * fr_next 6685 * fr_child 6686 * fr_win (only valid for the old curwin, NULL otherwise) 6687 */ 6688 6689 /* 6690 * Create a snapshot of the current frame sizes. 6691 */ 6692 void 6693 make_snapshot(int idx) 6694 { 6695 clear_snapshot(curtab, idx); 6696 make_snapshot_rec(topframe, &curtab->tp_snapshot[idx]); 6697 } 6698 6699 static void 6700 make_snapshot_rec(frame_T *fr, frame_T **frp) 6701 { 6702 *frp = ALLOC_CLEAR_ONE(frame_T); 6703 if (*frp == NULL) 6704 return; 6705 (*frp)->fr_layout = fr->fr_layout; 6706 (*frp)->fr_width = fr->fr_width; 6707 (*frp)->fr_height = fr->fr_height; 6708 if (fr->fr_next != NULL) 6709 make_snapshot_rec(fr->fr_next, &((*frp)->fr_next)); 6710 if (fr->fr_child != NULL) 6711 make_snapshot_rec(fr->fr_child, &((*frp)->fr_child)); 6712 if (fr->fr_layout == FR_LEAF && fr->fr_win == curwin) 6713 (*frp)->fr_win = curwin; 6714 } 6715 6716 /* 6717 * Remove any existing snapshot. 6718 */ 6719 static void 6720 clear_snapshot(tabpage_T *tp, int idx) 6721 { 6722 clear_snapshot_rec(tp->tp_snapshot[idx]); 6723 tp->tp_snapshot[idx] = NULL; 6724 } 6725 6726 static void 6727 clear_snapshot_rec(frame_T *fr) 6728 { 6729 if (fr != NULL) 6730 { 6731 clear_snapshot_rec(fr->fr_next); 6732 clear_snapshot_rec(fr->fr_child); 6733 vim_free(fr); 6734 } 6735 } 6736 6737 /* 6738 * Restore a previously created snapshot, if there is any. 6739 * This is only done if the screen size didn't change and the window layout is 6740 * still the same. 6741 */ 6742 void 6743 restore_snapshot( 6744 int idx, 6745 int close_curwin) // closing current window 6746 { 6747 win_T *wp; 6748 6749 if (curtab->tp_snapshot[idx] != NULL 6750 && curtab->tp_snapshot[idx]->fr_width == topframe->fr_width 6751 && curtab->tp_snapshot[idx]->fr_height == topframe->fr_height 6752 && check_snapshot_rec(curtab->tp_snapshot[idx], topframe) == OK) 6753 { 6754 wp = restore_snapshot_rec(curtab->tp_snapshot[idx], topframe); 6755 win_comp_pos(); 6756 if (wp != NULL && close_curwin) 6757 win_goto(wp); 6758 redraw_all_later(NOT_VALID); 6759 } 6760 clear_snapshot(curtab, idx); 6761 } 6762 6763 /* 6764 * Check if frames "sn" and "fr" have the same layout, same following frames 6765 * and same children. And the window pointer is valid. 6766 */ 6767 static int 6768 check_snapshot_rec(frame_T *sn, frame_T *fr) 6769 { 6770 if (sn->fr_layout != fr->fr_layout 6771 || (sn->fr_next == NULL) != (fr->fr_next == NULL) 6772 || (sn->fr_child == NULL) != (fr->fr_child == NULL) 6773 || (sn->fr_next != NULL 6774 && check_snapshot_rec(sn->fr_next, fr->fr_next) == FAIL) 6775 || (sn->fr_child != NULL 6776 && check_snapshot_rec(sn->fr_child, fr->fr_child) == FAIL) 6777 || (sn->fr_win != NULL && !win_valid(sn->fr_win))) 6778 return FAIL; 6779 return OK; 6780 } 6781 6782 /* 6783 * Copy the size of snapshot frame "sn" to frame "fr". Do the same for all 6784 * following frames and children. 6785 * Returns a pointer to the old current window, or NULL. 6786 */ 6787 static win_T * 6788 restore_snapshot_rec(frame_T *sn, frame_T *fr) 6789 { 6790 win_T *wp = NULL; 6791 win_T *wp2; 6792 6793 fr->fr_height = sn->fr_height; 6794 fr->fr_width = sn->fr_width; 6795 if (fr->fr_layout == FR_LEAF) 6796 { 6797 frame_new_height(fr, fr->fr_height, FALSE, FALSE); 6798 frame_new_width(fr, fr->fr_width, FALSE, FALSE); 6799 wp = sn->fr_win; 6800 } 6801 if (sn->fr_next != NULL) 6802 { 6803 wp2 = restore_snapshot_rec(sn->fr_next, fr->fr_next); 6804 if (wp2 != NULL) 6805 wp = wp2; 6806 } 6807 if (sn->fr_child != NULL) 6808 { 6809 wp2 = restore_snapshot_rec(sn->fr_child, fr->fr_child); 6810 if (wp2 != NULL) 6811 wp = wp2; 6812 } 6813 return wp; 6814 } 6815 6816 #if defined(FEAT_GUI) || defined(PROTO) 6817 /* 6818 * Return TRUE if there is any vertically split window. 6819 */ 6820 int 6821 win_hasvertsplit(void) 6822 { 6823 frame_T *fr; 6824 6825 if (topframe->fr_layout == FR_ROW) 6826 return TRUE; 6827 6828 if (topframe->fr_layout == FR_COL) 6829 FOR_ALL_FRAMES(fr, topframe->fr_child) 6830 if (fr->fr_layout == FR_ROW) 6831 return TRUE; 6832 6833 return FALSE; 6834 } 6835 #endif 6836 6837 #if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO) 6838 int 6839 get_win_number(win_T *wp, win_T *first_win) 6840 { 6841 int i = 1; 6842 win_T *w; 6843 6844 for (w = first_win; w != NULL && w != wp; w = W_NEXT(w)) 6845 ++i; 6846 6847 if (w == NULL) 6848 return 0; 6849 else 6850 return i; 6851 } 6852 6853 int 6854 get_tab_number(tabpage_T *tp UNUSED) 6855 { 6856 int i = 1; 6857 tabpage_T *t; 6858 6859 for (t = first_tabpage; t != NULL && t != tp; t = t->tp_next) 6860 ++i; 6861 6862 if (t == NULL) 6863 return 0; 6864 else 6865 return i; 6866 } 6867 #endif 6868 6869 /* 6870 * Return TRUE if "topfrp" and its children are at the right height. 6871 */ 6872 static int 6873 frame_check_height(frame_T *topfrp, int height) 6874 { 6875 frame_T *frp; 6876 6877 if (topfrp->fr_height != height) 6878 return FALSE; 6879 6880 if (topfrp->fr_layout == FR_ROW) 6881 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6882 if (frp->fr_height != height) 6883 return FALSE; 6884 6885 return TRUE; 6886 } 6887 6888 /* 6889 * Return TRUE if "topfrp" and its children are at the right width. 6890 */ 6891 static int 6892 frame_check_width(frame_T *topfrp, int width) 6893 { 6894 frame_T *frp; 6895 6896 if (topfrp->fr_width != width) 6897 return FALSE; 6898 6899 if (topfrp->fr_layout == FR_COL) 6900 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6901 if (frp->fr_width != width) 6902 return FALSE; 6903 6904 return TRUE; 6905 } 6906 6907 #if defined(FEAT_SYN_HL) || defined(PROTO) 6908 /* 6909 * Simple int comparison function for use with qsort() 6910 */ 6911 static int 6912 int_cmp(const void *a, const void *b) 6913 { 6914 return *(const int *)a - *(const int *)b; 6915 } 6916 6917 /* 6918 * Handle setting 'colorcolumn' or 'textwidth' in window "wp". 6919 * Returns error message, NULL if it's OK. 6920 */ 6921 char * 6922 check_colorcolumn(win_T *wp) 6923 { 6924 char_u *s; 6925 int col; 6926 int count = 0; 6927 int color_cols[256]; 6928 int i; 6929 int j = 0; 6930 6931 if (wp->w_buffer == NULL) 6932 return NULL; // buffer was closed 6933 6934 for (s = wp->w_p_cc; *s != NUL && count < 255;) 6935 { 6936 if (*s == '-' || *s == '+') 6937 { 6938 // -N and +N: add to 'textwidth' 6939 col = (*s == '-') ? -1 : 1; 6940 ++s; 6941 if (!VIM_ISDIGIT(*s)) 6942 return e_invarg; 6943 col = col * getdigits(&s); 6944 if (wp->w_buffer->b_p_tw == 0) 6945 goto skip; // 'textwidth' not set, skip this item 6946 col += wp->w_buffer->b_p_tw; 6947 if (col < 0) 6948 goto skip; 6949 } 6950 else if (VIM_ISDIGIT(*s)) 6951 col = getdigits(&s); 6952 else 6953 return e_invarg; 6954 color_cols[count++] = col - 1; // 1-based to 0-based 6955 skip: 6956 if (*s == NUL) 6957 break; 6958 if (*s != ',') 6959 return e_invarg; 6960 if (*++s == NUL) 6961 return e_invarg; // illegal trailing comma as in "set cc=80," 6962 } 6963 6964 vim_free(wp->w_p_cc_cols); 6965 if (count == 0) 6966 wp->w_p_cc_cols = NULL; 6967 else 6968 { 6969 wp->w_p_cc_cols = ALLOC_MULT(int, count + 1); 6970 if (wp->w_p_cc_cols != NULL) 6971 { 6972 // sort the columns for faster usage on screen redraw inside 6973 // win_line() 6974 qsort(color_cols, count, sizeof(int), int_cmp); 6975 6976 for (i = 0; i < count; ++i) 6977 // skip duplicates 6978 if (j == 0 || wp->w_p_cc_cols[j - 1] != color_cols[i]) 6979 wp->w_p_cc_cols[j++] = color_cols[i]; 6980 wp->w_p_cc_cols[j] = -1; // end marker 6981 } 6982 } 6983 6984 return NULL; // no error 6985 } 6986 #endif 6987