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 frame_fix_height(curwin); 1688 frame_fix_height(wp); 1689 frame_fix_width(curwin); 1690 frame_fix_width(wp); 1691 1692 (void)win_comp_pos(); // recompute window positions 1693 1694 win_enter(wp, TRUE); 1695 redraw_all_later(NOT_VALID); 1696 } 1697 1698 /* 1699 * rotate windows: if upwards TRUE the second window becomes the first one 1700 * if upwards FALSE the first window becomes the second one 1701 */ 1702 static void 1703 win_rotate(int upwards, int count) 1704 { 1705 win_T *wp1; 1706 win_T *wp2; 1707 frame_T *frp; 1708 int n; 1709 1710 if (ONE_WINDOW) // nothing to do 1711 { 1712 beep_flush(); 1713 return; 1714 } 1715 1716 #ifdef FEAT_GUI 1717 need_mouse_correct = TRUE; 1718 #endif 1719 1720 // Check if all frames in this row/col have one window. 1721 FOR_ALL_FRAMES(frp, curwin->w_frame->fr_parent->fr_child) 1722 if (frp->fr_win == NULL) 1723 { 1724 emsg(_("E443: Cannot rotate when another window is split")); 1725 return; 1726 } 1727 1728 while (count--) 1729 { 1730 if (upwards) // first window becomes last window 1731 { 1732 // remove first window/frame from the list 1733 frp = curwin->w_frame->fr_parent->fr_child; 1734 wp1 = frp->fr_win; 1735 win_remove(wp1, NULL); 1736 frame_remove(frp); 1737 1738 // find last frame and append removed window/frame after it 1739 for ( ; frp->fr_next != NULL; frp = frp->fr_next) 1740 ; 1741 win_append(frp->fr_win, wp1); 1742 frame_append(frp, wp1->w_frame); 1743 1744 wp2 = frp->fr_win; // previously last window 1745 } 1746 else // last window becomes first window 1747 { 1748 // find last window/frame in the list and remove it 1749 for (frp = curwin->w_frame; frp->fr_next != NULL; 1750 frp = frp->fr_next) 1751 ; 1752 wp1 = frp->fr_win; 1753 wp2 = wp1->w_prev; // will become last window 1754 win_remove(wp1, NULL); 1755 frame_remove(frp); 1756 1757 // append the removed window/frame before the first in the list 1758 win_append(frp->fr_parent->fr_child->fr_win->w_prev, wp1); 1759 frame_insert(frp->fr_parent->fr_child, frp); 1760 } 1761 1762 // exchange status height and vsep width of old and new last window 1763 n = wp2->w_status_height; 1764 wp2->w_status_height = wp1->w_status_height; 1765 wp1->w_status_height = n; 1766 frame_fix_height(wp1); 1767 frame_fix_height(wp2); 1768 n = wp2->w_vsep_width; 1769 wp2->w_vsep_width = wp1->w_vsep_width; 1770 wp1->w_vsep_width = n; 1771 frame_fix_width(wp1); 1772 frame_fix_width(wp2); 1773 1774 // recompute w_winrow and w_wincol for all windows 1775 (void)win_comp_pos(); 1776 } 1777 1778 redraw_all_later(NOT_VALID); 1779 } 1780 1781 /* 1782 * Move the current window to the very top/bottom/left/right of the screen. 1783 */ 1784 static void 1785 win_totop(int size, int flags) 1786 { 1787 int dir; 1788 int height = curwin->w_height; 1789 1790 if (ONE_WINDOW) 1791 { 1792 beep_flush(); 1793 return; 1794 } 1795 if (check_split_disallowed() == FAIL) 1796 return; 1797 1798 // Remove the window and frame from the tree of frames. 1799 (void)winframe_remove(curwin, &dir, NULL); 1800 win_remove(curwin, NULL); 1801 last_status(FALSE); // may need to remove last status line 1802 (void)win_comp_pos(); // recompute window positions 1803 1804 // Split a window on the desired side and put the window there. 1805 (void)win_split_ins(size, flags, curwin, dir); 1806 if (!(flags & WSP_VERT)) 1807 { 1808 win_setheight(height); 1809 if (p_ea) 1810 win_equal(curwin, TRUE, 'v'); 1811 } 1812 1813 #if defined(FEAT_GUI) 1814 // When 'guioptions' includes 'L' or 'R' may have to remove or add 1815 // scrollbars. Have to update them anyway. 1816 gui_may_update_scrollbars(); 1817 #endif 1818 } 1819 1820 /* 1821 * Move window "win1" to below/right of "win2" and make "win1" the current 1822 * window. Only works within the same frame! 1823 */ 1824 void 1825 win_move_after(win_T *win1, win_T *win2) 1826 { 1827 int height; 1828 1829 // check if the arguments are reasonable 1830 if (win1 == win2) 1831 return; 1832 1833 // check if there is something to do 1834 if (win2->w_next != win1) 1835 { 1836 if (win1->w_frame->fr_parent != win2->w_frame->fr_parent) 1837 { 1838 iemsg("INTERNAL: trying to move a window into another frame"); 1839 return; 1840 } 1841 1842 // may need to move the status line/vertical separator of the last 1843 // window 1844 if (win1 == lastwin) 1845 { 1846 height = win1->w_prev->w_status_height; 1847 win1->w_prev->w_status_height = win1->w_status_height; 1848 win1->w_status_height = height; 1849 if (win1->w_prev->w_vsep_width == 1) 1850 { 1851 // Remove the vertical separator from the last-but-one window, 1852 // add it to the last window. Adjust the frame widths. 1853 win1->w_prev->w_vsep_width = 0; 1854 win1->w_prev->w_frame->fr_width -= 1; 1855 win1->w_vsep_width = 1; 1856 win1->w_frame->fr_width += 1; 1857 } 1858 } 1859 else if (win2 == lastwin) 1860 { 1861 height = win1->w_status_height; 1862 win1->w_status_height = win2->w_status_height; 1863 win2->w_status_height = height; 1864 if (win1->w_vsep_width == 1) 1865 { 1866 // Remove the vertical separator from win1, add it to the last 1867 // window, win2. Adjust the frame widths. 1868 win2->w_vsep_width = 1; 1869 win2->w_frame->fr_width += 1; 1870 win1->w_vsep_width = 0; 1871 win1->w_frame->fr_width -= 1; 1872 } 1873 } 1874 win_remove(win1, NULL); 1875 frame_remove(win1->w_frame); 1876 win_append(win2, win1); 1877 frame_append(win2->w_frame, win1->w_frame); 1878 1879 (void)win_comp_pos(); // recompute w_winrow for all windows 1880 redraw_later(NOT_VALID); 1881 } 1882 win_enter(win1, FALSE); 1883 } 1884 1885 /* 1886 * Make all windows the same height. 1887 * 'next_curwin' will soon be the current window, make sure it has enough 1888 * rows. 1889 */ 1890 void 1891 win_equal( 1892 win_T *next_curwin, // pointer to current window to be or NULL 1893 int current, // do only frame with current window 1894 int dir) // 'v' for vertically, 'h' for horizontally, 1895 // 'b' for both, 0 for using p_ead 1896 { 1897 if (dir == 0) 1898 dir = *p_ead; 1899 win_equal_rec(next_curwin == NULL ? curwin : next_curwin, current, 1900 topframe, dir, 0, tabline_height(), 1901 (int)Columns, topframe->fr_height); 1902 } 1903 1904 /* 1905 * Set a frame to a new position and height, spreading the available room 1906 * equally over contained frames. 1907 * The window "next_curwin" (if not NULL) should at least get the size from 1908 * 'winheight' and 'winwidth' if possible. 1909 */ 1910 static void 1911 win_equal_rec( 1912 win_T *next_curwin, // pointer to current window to be or NULL 1913 int current, // do only frame with current window 1914 frame_T *topfr, // frame to set size off 1915 int dir, // 'v', 'h' or 'b', see win_equal() 1916 int col, // horizontal position for frame 1917 int row, // vertical position for frame 1918 int width, // new width of frame 1919 int height) // new height of frame 1920 { 1921 int n, m; 1922 int extra_sep = 0; 1923 int wincount, totwincount = 0; 1924 frame_T *fr; 1925 int next_curwin_size = 0; 1926 int room = 0; 1927 int new_size; 1928 int has_next_curwin = 0; 1929 int hnc; 1930 1931 if (topfr->fr_layout == FR_LEAF) 1932 { 1933 // Set the width/height of this frame. 1934 // Redraw when size or position changes 1935 if (topfr->fr_height != height || topfr->fr_win->w_winrow != row 1936 || topfr->fr_width != width || topfr->fr_win->w_wincol != col 1937 ) 1938 { 1939 topfr->fr_win->w_winrow = row; 1940 frame_new_height(topfr, height, FALSE, FALSE); 1941 topfr->fr_win->w_wincol = col; 1942 frame_new_width(topfr, width, FALSE, FALSE); 1943 redraw_all_later(NOT_VALID); 1944 } 1945 } 1946 else if (topfr->fr_layout == FR_ROW) 1947 { 1948 topfr->fr_width = width; 1949 topfr->fr_height = height; 1950 1951 if (dir != 'v') // equalize frame widths 1952 { 1953 // Compute the maximum number of windows horizontally in this 1954 // frame. 1955 n = frame_minwidth(topfr, NOWIN); 1956 // add one for the rightmost window, it doesn't have a separator 1957 if (col + width == Columns) 1958 extra_sep = 1; 1959 else 1960 extra_sep = 0; 1961 totwincount = (n + extra_sep) / (p_wmw + 1); 1962 has_next_curwin = frame_has_win(topfr, next_curwin); 1963 1964 /* 1965 * Compute width for "next_curwin" window and room available for 1966 * other windows. 1967 * "m" is the minimal width when counting p_wiw for "next_curwin". 1968 */ 1969 m = frame_minwidth(topfr, next_curwin); 1970 room = width - m; 1971 if (room < 0) 1972 { 1973 next_curwin_size = p_wiw + room; 1974 room = 0; 1975 } 1976 else 1977 { 1978 next_curwin_size = -1; 1979 FOR_ALL_FRAMES(fr, topfr->fr_child) 1980 { 1981 // If 'winfixwidth' set keep the window width if 1982 // possible. 1983 // Watch out for this window being the next_curwin. 1984 if (frame_fixed_width(fr)) 1985 { 1986 n = frame_minwidth(fr, NOWIN); 1987 new_size = fr->fr_width; 1988 if (frame_has_win(fr, next_curwin)) 1989 { 1990 room += p_wiw - p_wmw; 1991 next_curwin_size = 0; 1992 if (new_size < p_wiw) 1993 new_size = p_wiw; 1994 } 1995 else 1996 // These windows don't use up room. 1997 totwincount -= (n + (fr->fr_next == NULL 1998 ? extra_sep : 0)) / (p_wmw + 1); 1999 room -= new_size - n; 2000 if (room < 0) 2001 { 2002 new_size += room; 2003 room = 0; 2004 } 2005 fr->fr_newwidth = new_size; 2006 } 2007 } 2008 if (next_curwin_size == -1) 2009 { 2010 if (!has_next_curwin) 2011 next_curwin_size = 0; 2012 else if (totwincount > 1 2013 && (room + (totwincount - 2)) 2014 / (totwincount - 1) > p_wiw) 2015 { 2016 // Can make all windows wider than 'winwidth', spread 2017 // the room equally. 2018 next_curwin_size = (room + p_wiw 2019 + (totwincount - 1) * p_wmw 2020 + (totwincount - 1)) / totwincount; 2021 room -= next_curwin_size - p_wiw; 2022 } 2023 else 2024 next_curwin_size = p_wiw; 2025 } 2026 } 2027 2028 if (has_next_curwin) 2029 --totwincount; // don't count curwin 2030 } 2031 2032 FOR_ALL_FRAMES(fr, topfr->fr_child) 2033 { 2034 wincount = 1; 2035 if (fr->fr_next == NULL) 2036 // last frame gets all that remains (avoid roundoff error) 2037 new_size = width; 2038 else if (dir == 'v') 2039 new_size = fr->fr_width; 2040 else if (frame_fixed_width(fr)) 2041 { 2042 new_size = fr->fr_newwidth; 2043 wincount = 0; // doesn't count as a sizeable window 2044 } 2045 else 2046 { 2047 // Compute the maximum number of windows horiz. in "fr". 2048 n = frame_minwidth(fr, NOWIN); 2049 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 2050 / (p_wmw + 1); 2051 m = frame_minwidth(fr, next_curwin); 2052 if (has_next_curwin) 2053 hnc = frame_has_win(fr, next_curwin); 2054 else 2055 hnc = FALSE; 2056 if (hnc) // don't count next_curwin 2057 --wincount; 2058 if (totwincount == 0) 2059 new_size = room; 2060 else 2061 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 2062 / totwincount; 2063 if (hnc) // add next_curwin size 2064 { 2065 next_curwin_size -= p_wiw - (m - n); 2066 new_size += next_curwin_size; 2067 room -= new_size - next_curwin_size; 2068 } 2069 else 2070 room -= new_size; 2071 new_size += n; 2072 } 2073 2074 // Skip frame that is full width when splitting or closing a 2075 // window, unless equalizing all frames. 2076 if (!current || dir != 'v' || topfr->fr_parent != NULL 2077 || (new_size != fr->fr_width) 2078 || frame_has_win(fr, next_curwin)) 2079 win_equal_rec(next_curwin, current, fr, dir, col, row, 2080 new_size, height); 2081 col += new_size; 2082 width -= new_size; 2083 totwincount -= wincount; 2084 } 2085 } 2086 else // topfr->fr_layout == FR_COL 2087 { 2088 topfr->fr_width = width; 2089 topfr->fr_height = height; 2090 2091 if (dir != 'h') // equalize frame heights 2092 { 2093 // Compute maximum number of windows vertically in this frame. 2094 n = frame_minheight(topfr, NOWIN); 2095 // add one for the bottom window if it doesn't have a statusline 2096 if (row + height == cmdline_row && p_ls == 0) 2097 extra_sep = 1; 2098 else 2099 extra_sep = 0; 2100 totwincount = (n + extra_sep) / (p_wmh + 1); 2101 has_next_curwin = frame_has_win(topfr, next_curwin); 2102 2103 /* 2104 * Compute height for "next_curwin" window and room available for 2105 * other windows. 2106 * "m" is the minimal height when counting p_wh for "next_curwin". 2107 */ 2108 m = frame_minheight(topfr, next_curwin); 2109 room = height - m; 2110 if (room < 0) 2111 { 2112 // The room is less then 'winheight', use all space for the 2113 // current window. 2114 next_curwin_size = p_wh + room; 2115 room = 0; 2116 } 2117 else 2118 { 2119 next_curwin_size = -1; 2120 FOR_ALL_FRAMES(fr, topfr->fr_child) 2121 { 2122 // If 'winfixheight' set keep the window height if 2123 // possible. 2124 // Watch out for this window being the next_curwin. 2125 if (frame_fixed_height(fr)) 2126 { 2127 n = frame_minheight(fr, NOWIN); 2128 new_size = fr->fr_height; 2129 if (frame_has_win(fr, next_curwin)) 2130 { 2131 room += p_wh - p_wmh; 2132 next_curwin_size = 0; 2133 if (new_size < p_wh) 2134 new_size = p_wh; 2135 } 2136 else 2137 // These windows don't use up room. 2138 totwincount -= (n + (fr->fr_next == NULL 2139 ? extra_sep : 0)) / (p_wmh + 1); 2140 room -= new_size - n; 2141 if (room < 0) 2142 { 2143 new_size += room; 2144 room = 0; 2145 } 2146 fr->fr_newheight = new_size; 2147 } 2148 } 2149 if (next_curwin_size == -1) 2150 { 2151 if (!has_next_curwin) 2152 next_curwin_size = 0; 2153 else if (totwincount > 1 2154 && (room + (totwincount - 2)) 2155 / (totwincount - 1) > p_wh) 2156 { 2157 // can make all windows higher than 'winheight', 2158 // spread the room equally. 2159 next_curwin_size = (room + p_wh 2160 + (totwincount - 1) * p_wmh 2161 + (totwincount - 1)) / totwincount; 2162 room -= next_curwin_size - p_wh; 2163 } 2164 else 2165 next_curwin_size = p_wh; 2166 } 2167 } 2168 2169 if (has_next_curwin) 2170 --totwincount; // don't count curwin 2171 } 2172 2173 FOR_ALL_FRAMES(fr, topfr->fr_child) 2174 { 2175 wincount = 1; 2176 if (fr->fr_next == NULL) 2177 // last frame gets all that remains (avoid roundoff error) 2178 new_size = height; 2179 else if (dir == 'h') 2180 new_size = fr->fr_height; 2181 else if (frame_fixed_height(fr)) 2182 { 2183 new_size = fr->fr_newheight; 2184 wincount = 0; // doesn't count as a sizeable window 2185 } 2186 else 2187 { 2188 // Compute the maximum number of windows vert. in "fr". 2189 n = frame_minheight(fr, NOWIN); 2190 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 2191 / (p_wmh + 1); 2192 m = frame_minheight(fr, next_curwin); 2193 if (has_next_curwin) 2194 hnc = frame_has_win(fr, next_curwin); 2195 else 2196 hnc = FALSE; 2197 if (hnc) // don't count next_curwin 2198 --wincount; 2199 if (totwincount == 0) 2200 new_size = room; 2201 else 2202 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 2203 / totwincount; 2204 if (hnc) // add next_curwin size 2205 { 2206 next_curwin_size -= p_wh - (m - n); 2207 new_size += next_curwin_size; 2208 room -= new_size - next_curwin_size; 2209 } 2210 else 2211 room -= new_size; 2212 new_size += n; 2213 } 2214 // Skip frame that is full width when splitting or closing a 2215 // window, unless equalizing all frames. 2216 if (!current || dir != 'h' || topfr->fr_parent != NULL 2217 || (new_size != fr->fr_height) 2218 || frame_has_win(fr, next_curwin)) 2219 win_equal_rec(next_curwin, current, fr, dir, col, row, 2220 width, new_size); 2221 row += new_size; 2222 height -= new_size; 2223 totwincount -= wincount; 2224 } 2225 } 2226 } 2227 2228 #ifdef FEAT_JOB_CHANNEL 2229 static void 2230 leaving_window(win_T *win) 2231 { 2232 // Only matters for a prompt window. 2233 if (!bt_prompt(win->w_buffer)) 2234 return; 2235 2236 // When leaving a prompt window stop Insert mode and perhaps restart 2237 // it when entering that window again. 2238 win->w_buffer->b_prompt_insert = restart_edit; 2239 if (restart_edit != 0 && mode_displayed) 2240 clear_cmdline = TRUE; // unshow mode later 2241 restart_edit = NUL; 2242 2243 // When leaving the window (or closing the window) was done from a 2244 // callback we need to break out of the Insert mode loop and restart Insert 2245 // mode when entering the window again. 2246 if (State & INSERT) 2247 { 2248 stop_insert_mode = TRUE; 2249 if (win->w_buffer->b_prompt_insert == NUL) 2250 win->w_buffer->b_prompt_insert = 'A'; 2251 } 2252 } 2253 2254 void 2255 entering_window(win_T *win) 2256 { 2257 // Only matters for a prompt window. 2258 if (!bt_prompt(win->w_buffer)) 2259 return; 2260 2261 // When switching to a prompt buffer that was in Insert mode, don't stop 2262 // Insert mode, it may have been set in leaving_window(). 2263 if (win->w_buffer->b_prompt_insert != NUL) 2264 stop_insert_mode = FALSE; 2265 2266 // When entering the prompt window restart Insert mode if we were in Insert 2267 // mode when we left it. 2268 restart_edit = win->w_buffer->b_prompt_insert; 2269 } 2270 #endif 2271 2272 /* 2273 * Close all windows for buffer "buf". 2274 */ 2275 void 2276 close_windows( 2277 buf_T *buf, 2278 int keep_curwin) // don't close "curwin" 2279 { 2280 win_T *wp; 2281 tabpage_T *tp, *nexttp; 2282 int h = tabline_height(); 2283 int count = tabpage_index(NULL); 2284 2285 ++RedrawingDisabled; 2286 2287 for (wp = firstwin; wp != NULL && !ONE_WINDOW; ) 2288 { 2289 if (wp->w_buffer == buf && (!keep_curwin || wp != curwin) 2290 && !(wp->w_closing || wp->w_buffer->b_locked > 0)) 2291 { 2292 if (win_close(wp, FALSE) == FAIL) 2293 // If closing the window fails give up, to avoid looping 2294 // forever. 2295 break; 2296 2297 // Start all over, autocommands may change the window layout. 2298 wp = firstwin; 2299 } 2300 else 2301 wp = wp->w_next; 2302 } 2303 2304 // Also check windows in other tab pages. 2305 for (tp = first_tabpage; tp != NULL; tp = nexttp) 2306 { 2307 nexttp = tp->tp_next; 2308 if (tp != curtab) 2309 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 2310 if (wp->w_buffer == buf 2311 && !(wp->w_closing || wp->w_buffer->b_locked > 0)) 2312 { 2313 win_close_othertab(wp, FALSE, tp); 2314 2315 // Start all over, the tab page may be closed and 2316 // autocommands may change the window layout. 2317 nexttp = first_tabpage; 2318 break; 2319 } 2320 } 2321 2322 --RedrawingDisabled; 2323 2324 if (count != tabpage_index(NULL)) 2325 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2326 2327 redraw_tabline = TRUE; 2328 if (h != tabline_height()) 2329 shell_new_rows(); 2330 } 2331 2332 /* 2333 * Return TRUE if the current window is the only window that exists (ignoring 2334 * "aucmd_win"). 2335 * Returns FALSE if there is a window, possibly in another tab page. 2336 */ 2337 static int 2338 last_window(void) 2339 { 2340 return (one_window() && first_tabpage->tp_next == NULL); 2341 } 2342 2343 /* 2344 * Return TRUE if there is only one window other than "aucmd_win" in the 2345 * current tab page. 2346 */ 2347 int 2348 one_window(void) 2349 { 2350 win_T *wp; 2351 int seen_one = FALSE; 2352 2353 FOR_ALL_WINDOWS(wp) 2354 { 2355 if (wp != aucmd_win) 2356 { 2357 if (seen_one) 2358 return FALSE; 2359 seen_one = TRUE; 2360 } 2361 } 2362 return TRUE; 2363 } 2364 2365 /* 2366 * Close the possibly last window in a tab page. 2367 * Returns TRUE when the window was closed already. 2368 */ 2369 static int 2370 close_last_window_tabpage( 2371 win_T *win, 2372 int free_buf, 2373 tabpage_T *prev_curtab) 2374 { 2375 if (ONE_WINDOW) 2376 { 2377 buf_T *old_curbuf = curbuf; 2378 2379 /* 2380 * Closing the last window in a tab page. First go to another tab 2381 * page and then close the window and the tab page. This avoids that 2382 * curwin and curtab are invalid while we are freeing memory, they may 2383 * be used in GUI events. 2384 * Don't trigger autocommands yet, they may use wrong values, so do 2385 * that below. 2386 */ 2387 goto_tabpage_tp(alt_tabpage(), FALSE, TRUE); 2388 redraw_tabline = TRUE; 2389 2390 // Safety check: Autocommands may have closed the window when jumping 2391 // to the other tab page. 2392 if (valid_tabpage(prev_curtab) && prev_curtab->tp_firstwin == win) 2393 { 2394 int h = tabline_height(); 2395 2396 win_close_othertab(win, free_buf, prev_curtab); 2397 if (h != tabline_height()) 2398 shell_new_rows(); 2399 } 2400 #ifdef FEAT_JOB_CHANNEL 2401 entering_window(curwin); 2402 #endif 2403 // Since goto_tabpage_tp above did not trigger *Enter autocommands, do 2404 // that now. 2405 apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); 2406 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 2407 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 2408 if (old_curbuf != curbuf) 2409 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2410 return TRUE; 2411 } 2412 return FALSE; 2413 } 2414 2415 /* 2416 * Close the buffer of "win" and unload it if "action" is DOBUF_UNLOAD. 2417 * "action" can also be zero (do nothing) or DOBUF_WIPE. 2418 * "abort_if_last" is passed to close_buffer(): abort closing if all other 2419 * windows are closed. 2420 */ 2421 static void 2422 win_close_buffer(win_T *win, int action, int abort_if_last) 2423 { 2424 #ifdef FEAT_SYN_HL 2425 // Free independent synblock before the buffer is freed. 2426 if (win->w_buffer != NULL) 2427 reset_synblock(win); 2428 #endif 2429 2430 #ifdef FEAT_QUICKFIX 2431 // When the quickfix/location list window is closed, unlist the buffer. 2432 if (win->w_buffer != NULL && bt_quickfix(win->w_buffer)) 2433 win->w_buffer->b_p_bl = FALSE; 2434 #endif 2435 2436 // Close the link to the buffer. 2437 if (win->w_buffer != NULL) 2438 { 2439 bufref_T bufref; 2440 2441 set_bufref(&bufref, curbuf); 2442 win->w_closing = TRUE; 2443 close_buffer(win, win->w_buffer, action, abort_if_last, FALSE); 2444 if (win_valid_any_tab(win)) 2445 win->w_closing = FALSE; 2446 // Make sure curbuf is valid. It can become invalid if 'bufhidden' is 2447 // "wipe". 2448 if (!bufref_valid(&bufref)) 2449 curbuf = firstbuf; 2450 } 2451 } 2452 2453 /* 2454 * Close window "win". Only works for the current tab page. 2455 * If "free_buf" is TRUE related buffer may be unloaded. 2456 * 2457 * Called by :quit, :close, :xit, :wq and findtag(). 2458 * Returns FAIL when the window was not closed. 2459 */ 2460 int 2461 win_close(win_T *win, int free_buf) 2462 { 2463 win_T *wp; 2464 int other_buffer = FALSE; 2465 int close_curwin = FALSE; 2466 int dir; 2467 int help_window = FALSE; 2468 tabpage_T *prev_curtab = curtab; 2469 frame_T *win_frame = win->w_frame->fr_parent; 2470 #ifdef FEAT_DIFF 2471 int had_diffmode = win->w_p_diff; 2472 #endif 2473 #ifdef MESSAGE_QUEUE 2474 int did_decrement = FALSE; 2475 #endif 2476 2477 #if defined(FEAT_TERMINAL) && defined(FEAT_PROP_POPUP) 2478 // Can close a popup window with a terminal if the job has finished. 2479 if (may_close_term_popup() == OK) 2480 return OK; 2481 #endif 2482 if (ERROR_IF_ANY_POPUP_WINDOW) 2483 return FAIL; 2484 2485 if (last_window()) 2486 { 2487 emsg(_("E444: Cannot close last window")); 2488 return FAIL; 2489 } 2490 2491 if (win->w_closing || (win->w_buffer != NULL 2492 && win->w_buffer->b_locked > 0)) 2493 return FAIL; // window is already being closed 2494 if (win_unlisted(win)) 2495 { 2496 emsg(_(e_autocmd_close)); 2497 return FAIL; 2498 } 2499 if ((firstwin == aucmd_win || lastwin == aucmd_win) && one_window()) 2500 { 2501 emsg(_("E814: Cannot close window, only autocmd window would remain")); 2502 return FAIL; 2503 } 2504 2505 // When closing the last window in a tab page first go to another tab page 2506 // and then close the window and the tab page to avoid that curwin and 2507 // curtab are invalid while we are freeing memory. 2508 if (close_last_window_tabpage(win, free_buf, prev_curtab)) 2509 return FAIL; 2510 2511 // When closing the help window, try restoring a snapshot after closing 2512 // the window. Otherwise clear the snapshot, it's now invalid. 2513 if (bt_help(win->w_buffer)) 2514 help_window = TRUE; 2515 else 2516 clear_snapshot(curtab, SNAP_HELP_IDX); 2517 2518 if (win == curwin) 2519 { 2520 #ifdef FEAT_JOB_CHANNEL 2521 leaving_window(curwin); 2522 #endif 2523 /* 2524 * Guess which window is going to be the new current window. 2525 * This may change because of the autocommands (sigh). 2526 */ 2527 wp = frame2win(win_altframe(win, NULL)); 2528 2529 /* 2530 * Be careful: If autocommands delete the window or cause this window 2531 * to be the last one left, return now. 2532 */ 2533 if (wp->w_buffer != curbuf) 2534 { 2535 other_buffer = TRUE; 2536 win->w_closing = TRUE; 2537 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 2538 if (!win_valid(win)) 2539 return FAIL; 2540 win->w_closing = FALSE; 2541 if (last_window()) 2542 return FAIL; 2543 } 2544 win->w_closing = TRUE; 2545 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 2546 if (!win_valid(win)) 2547 return FAIL; 2548 win->w_closing = FALSE; 2549 if (last_window()) 2550 return FAIL; 2551 #ifdef FEAT_EVAL 2552 // autocmds may abort script processing 2553 if (aborting()) 2554 return FAIL; 2555 #endif 2556 } 2557 2558 #ifdef FEAT_GUI 2559 // Avoid trouble with scrollbars that are going to be deleted in 2560 // win_free(). 2561 if (gui.in_use) 2562 out_flush(); 2563 #endif 2564 2565 #ifdef FEAT_PROP_POPUP 2566 if (popup_win_closed(win) && !win_valid(win)) 2567 return FAIL; 2568 #endif 2569 win_close_buffer(win, free_buf ? DOBUF_UNLOAD : 0, TRUE); 2570 2571 if (only_one_window() && win_valid(win) && win->w_buffer == NULL 2572 && (last_window() || curtab != prev_curtab 2573 || close_last_window_tabpage(win, free_buf, prev_curtab))) 2574 { 2575 // Autocommands have closed all windows, quit now. Restore 2576 // curwin->w_buffer, otherwise writing viminfo may fail. 2577 if (curwin->w_buffer == NULL) 2578 curwin->w_buffer = curbuf; 2579 getout(0); 2580 } 2581 2582 // Autocommands may have moved to another tab page. 2583 if (curtab != prev_curtab && win_valid_any_tab(win) 2584 && win->w_buffer == NULL) 2585 { 2586 // Need to close the window anyway, since the buffer is NULL. 2587 win_close_othertab(win, FALSE, prev_curtab); 2588 return FAIL; 2589 } 2590 2591 // Autocommands may have closed the window already or closed the only 2592 // other window. 2593 if (!win_valid(win) || last_window() 2594 || close_last_window_tabpage(win, free_buf, prev_curtab)) 2595 return FAIL; 2596 2597 // Now we are really going to close the window. Disallow any autocommand 2598 // to split a window to avoid trouble. 2599 // Also bail out of parse_queued_messages() to avoid it tries to update the 2600 // screen. 2601 ++split_disallowed; 2602 #ifdef MESSAGE_QUEUE 2603 ++dont_parse_messages; 2604 #endif 2605 2606 // Free the memory used for the window and get the window that received 2607 // the screen space. 2608 wp = win_free_mem(win, &dir, NULL); 2609 2610 // Make sure curwin isn't invalid. It can cause severe trouble when 2611 // printing an error message. For win_equal() curbuf needs to be valid 2612 // too. 2613 if (win == curwin) 2614 { 2615 curwin = wp; 2616 #ifdef FEAT_QUICKFIX 2617 if (wp->w_p_pvw || bt_quickfix(wp->w_buffer)) 2618 { 2619 /* 2620 * If the cursor goes to the preview or the quickfix window, try 2621 * finding another window to go to. 2622 */ 2623 for (;;) 2624 { 2625 if (wp->w_next == NULL) 2626 wp = firstwin; 2627 else 2628 wp = wp->w_next; 2629 if (wp == curwin) 2630 break; 2631 if (!wp->w_p_pvw && !bt_quickfix(wp->w_buffer)) 2632 { 2633 curwin = wp; 2634 break; 2635 } 2636 } 2637 } 2638 #endif 2639 curbuf = curwin->w_buffer; 2640 close_curwin = TRUE; 2641 2642 // The cursor position may be invalid if the buffer changed after last 2643 // using the window. 2644 check_cursor(); 2645 } 2646 if (p_ea && (*p_ead == 'b' || *p_ead == dir)) 2647 // If the frame of the closed window contains the new current window, 2648 // only resize that frame. Otherwise resize all windows. 2649 win_equal(curwin, curwin->w_frame->fr_parent == win_frame, dir); 2650 else 2651 win_comp_pos(); 2652 if (close_curwin) 2653 { 2654 // Pass WEE_ALLOW_PARSE_MESSAGES to decrement dont_parse_messages 2655 // before autocommands. 2656 #ifdef MESSAGE_QUEUE 2657 did_decrement = 2658 #else 2659 (void) 2660 #endif 2661 win_enter_ext(wp, 2662 WEE_CURWIN_INVALID | WEE_TRIGGER_ENTER_AUTOCMDS 2663 | WEE_TRIGGER_LEAVE_AUTOCMDS | WEE_ALLOW_PARSE_MESSAGES); 2664 if (other_buffer) 2665 // careful: after this wp and win may be invalid! 2666 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2667 } 2668 2669 --split_disallowed; 2670 #ifdef MESSAGE_QUEUE 2671 if (!did_decrement) 2672 --dont_parse_messages; 2673 #endif 2674 2675 /* 2676 * If last window has a status line now and we don't want one, 2677 * remove the status line. 2678 */ 2679 last_status(FALSE); 2680 2681 // After closing the help window, try restoring the window layout from 2682 // before it was opened. 2683 if (help_window) 2684 restore_snapshot(SNAP_HELP_IDX, close_curwin); 2685 2686 #ifdef FEAT_DIFF 2687 // If the window had 'diff' set and now there is only one window left in 2688 // the tab page with 'diff' set, and "closeoff" is in 'diffopt', then 2689 // execute ":diffoff!". 2690 if (diffopt_closeoff() && had_diffmode && curtab == prev_curtab) 2691 { 2692 int diffcount = 0; 2693 win_T *dwin; 2694 2695 FOR_ALL_WINDOWS(dwin) 2696 if (dwin->w_p_diff) 2697 ++diffcount; 2698 if (diffcount == 1) 2699 do_cmdline_cmd((char_u *)"diffoff!"); 2700 } 2701 #endif 2702 2703 #if defined(FEAT_GUI) 2704 // When 'guioptions' includes 'L' or 'R' may have to remove scrollbars. 2705 if (gui.in_use && !win_hasvertsplit()) 2706 gui_init_which_components(NULL); 2707 #endif 2708 2709 redraw_all_later(NOT_VALID); 2710 return OK; 2711 } 2712 2713 /* 2714 * Close window "win" in tab page "tp", which is not the current tab page. 2715 * This may be the last window in that tab page and result in closing the tab, 2716 * thus "tp" may become invalid! 2717 * Caller must check if buffer is hidden and whether the tabline needs to be 2718 * updated. 2719 */ 2720 void 2721 win_close_othertab(win_T *win, int free_buf, tabpage_T *tp) 2722 { 2723 win_T *wp; 2724 int dir; 2725 tabpage_T *ptp = NULL; 2726 int free_tp = FALSE; 2727 2728 // Get here with win->w_buffer == NULL when win_close() detects the tab 2729 // page changed. 2730 if (win->w_closing || (win->w_buffer != NULL 2731 && win->w_buffer->b_locked > 0)) 2732 return; // window is already being closed 2733 2734 if (win->w_buffer != NULL) 2735 // Close the link to the buffer. 2736 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, 2737 FALSE, FALSE); 2738 2739 // Careful: Autocommands may have closed the tab page or made it the 2740 // current tab page. 2741 for (ptp = first_tabpage; ptp != NULL && ptp != tp; ptp = ptp->tp_next) 2742 ; 2743 if (ptp == NULL || tp == curtab) 2744 return; 2745 2746 // Autocommands may have closed the window already. 2747 for (wp = tp->tp_firstwin; wp != NULL && wp != win; wp = wp->w_next) 2748 ; 2749 if (wp == NULL) 2750 return; 2751 2752 // When closing the last window in a tab page remove the tab page. 2753 if (tp->tp_firstwin == tp->tp_lastwin) 2754 { 2755 if (tp == first_tabpage) 2756 first_tabpage = tp->tp_next; 2757 else 2758 { 2759 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tp; 2760 ptp = ptp->tp_next) 2761 ; 2762 if (ptp == NULL) 2763 { 2764 internal_error("win_close_othertab()"); 2765 return; 2766 } 2767 ptp->tp_next = tp->tp_next; 2768 } 2769 free_tp = TRUE; 2770 } 2771 2772 // Free the memory used for the window. 2773 win_free_mem(win, &dir, tp); 2774 2775 if (free_tp) 2776 free_tabpage(tp); 2777 } 2778 2779 /* 2780 * Free the memory used for a window. 2781 * Returns a pointer to the window that got the freed up space. 2782 */ 2783 static win_T * 2784 win_free_mem( 2785 win_T *win, 2786 int *dirp, // set to 'v' or 'h' for direction if 'ea' 2787 tabpage_T *tp) // tab page "win" is in, NULL for current 2788 { 2789 frame_T *frp; 2790 win_T *wp; 2791 tabpage_T *win_tp = tp == NULL ? curtab : tp; 2792 2793 // Remove the window and its frame from the tree of frames. 2794 frp = win->w_frame; 2795 wp = winframe_remove(win, dirp, tp); 2796 vim_free(frp); 2797 win_free(win, tp); 2798 2799 // When deleting the current window in the tab, select a new current 2800 // window. 2801 if (win == win_tp->tp_curwin) 2802 win_tp->tp_curwin = wp; 2803 2804 return wp; 2805 } 2806 2807 #if defined(EXITFREE) || defined(PROTO) 2808 void 2809 win_free_all(void) 2810 { 2811 int dummy; 2812 2813 while (first_tabpage->tp_next != NULL) 2814 tabpage_close(TRUE); 2815 2816 if (aucmd_win != NULL) 2817 { 2818 (void)win_free_mem(aucmd_win, &dummy, NULL); 2819 aucmd_win = NULL; 2820 } 2821 2822 while (firstwin != NULL) 2823 (void)win_free_mem(firstwin, &dummy, NULL); 2824 2825 // No window should be used after this. Set curwin to NULL to crash 2826 // instead of using freed memory. 2827 curwin = NULL; 2828 } 2829 #endif 2830 2831 /* 2832 * Remove a window and its frame from the tree of frames. 2833 * Returns a pointer to the window that got the freed up space. 2834 */ 2835 win_T * 2836 winframe_remove( 2837 win_T *win, 2838 int *dirp UNUSED, // set to 'v' or 'h' for direction if 'ea' 2839 tabpage_T *tp) // tab page "win" is in, NULL for current 2840 { 2841 frame_T *frp, *frp2, *frp3; 2842 frame_T *frp_close = win->w_frame; 2843 win_T *wp; 2844 2845 /* 2846 * If there is only one window there is nothing to remove. 2847 */ 2848 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 2849 return NULL; 2850 2851 /* 2852 * Remove the window from its frame. 2853 */ 2854 frp2 = win_altframe(win, tp); 2855 wp = frame2win(frp2); 2856 2857 // Remove this frame from the list of frames. 2858 frame_remove(frp_close); 2859 2860 if (frp_close->fr_parent->fr_layout == FR_COL) 2861 { 2862 // When 'winfixheight' is set, try to find another frame in the column 2863 // (as close to the closed frame as possible) to distribute the height 2864 // to. 2865 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfh) 2866 { 2867 frp = frp_close->fr_prev; 2868 frp3 = frp_close->fr_next; 2869 while (frp != NULL || frp3 != NULL) 2870 { 2871 if (frp != NULL) 2872 { 2873 if (!frame_fixed_height(frp)) 2874 { 2875 frp2 = frp; 2876 wp = frame2win(frp2); 2877 break; 2878 } 2879 frp = frp->fr_prev; 2880 } 2881 if (frp3 != NULL) 2882 { 2883 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfh) 2884 { 2885 frp2 = frp3; 2886 wp = frp3->fr_win; 2887 break; 2888 } 2889 frp3 = frp3->fr_next; 2890 } 2891 } 2892 } 2893 frame_new_height(frp2, frp2->fr_height + frp_close->fr_height, 2894 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2895 *dirp = 'v'; 2896 } 2897 else 2898 { 2899 // When 'winfixwidth' is set, try to find another frame in the column 2900 // (as close to the closed frame as possible) to distribute the width 2901 // to. 2902 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfw) 2903 { 2904 frp = frp_close->fr_prev; 2905 frp3 = frp_close->fr_next; 2906 while (frp != NULL || frp3 != NULL) 2907 { 2908 if (frp != NULL) 2909 { 2910 if (!frame_fixed_width(frp)) 2911 { 2912 frp2 = frp; 2913 wp = frame2win(frp2); 2914 break; 2915 } 2916 frp = frp->fr_prev; 2917 } 2918 if (frp3 != NULL) 2919 { 2920 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfw) 2921 { 2922 frp2 = frp3; 2923 wp = frp3->fr_win; 2924 break; 2925 } 2926 frp3 = frp3->fr_next; 2927 } 2928 } 2929 } 2930 frame_new_width(frp2, frp2->fr_width + frp_close->fr_width, 2931 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2932 *dirp = 'h'; 2933 } 2934 2935 // If rows/columns go to a window below/right its positions need to be 2936 // updated. Can only be done after the sizes have been updated. 2937 if (frp2 == frp_close->fr_next) 2938 { 2939 int row = win->w_winrow; 2940 int col = win->w_wincol; 2941 2942 frame_comp_pos(frp2, &row, &col); 2943 } 2944 2945 if (frp2->fr_next == NULL && frp2->fr_prev == NULL) 2946 { 2947 // There is no other frame in this list, move its info to the parent 2948 // and remove it. 2949 frp2->fr_parent->fr_layout = frp2->fr_layout; 2950 frp2->fr_parent->fr_child = frp2->fr_child; 2951 FOR_ALL_FRAMES(frp, frp2->fr_child) 2952 frp->fr_parent = frp2->fr_parent; 2953 frp2->fr_parent->fr_win = frp2->fr_win; 2954 if (frp2->fr_win != NULL) 2955 frp2->fr_win->w_frame = frp2->fr_parent; 2956 frp = frp2->fr_parent; 2957 if (topframe->fr_child == frp2) 2958 topframe->fr_child = frp; 2959 vim_free(frp2); 2960 2961 frp2 = frp->fr_parent; 2962 if (frp2 != NULL && frp2->fr_layout == frp->fr_layout) 2963 { 2964 // The frame above the parent has the same layout, have to merge 2965 // the frames into this list. 2966 if (frp2->fr_child == frp) 2967 frp2->fr_child = frp->fr_child; 2968 frp->fr_child->fr_prev = frp->fr_prev; 2969 if (frp->fr_prev != NULL) 2970 frp->fr_prev->fr_next = frp->fr_child; 2971 for (frp3 = frp->fr_child; ; frp3 = frp3->fr_next) 2972 { 2973 frp3->fr_parent = frp2; 2974 if (frp3->fr_next == NULL) 2975 { 2976 frp3->fr_next = frp->fr_next; 2977 if (frp->fr_next != NULL) 2978 frp->fr_next->fr_prev = frp3; 2979 break; 2980 } 2981 } 2982 if (topframe->fr_child == frp) 2983 topframe->fr_child = frp2; 2984 vim_free(frp); 2985 } 2986 } 2987 2988 return wp; 2989 } 2990 2991 /* 2992 * Return a pointer to the frame that will receive the empty screen space that 2993 * is left over after "win" is closed. 2994 * 2995 * If 'splitbelow' or 'splitright' is set, the space goes above or to the left 2996 * by default. Otherwise, the free space goes below or to the right. The 2997 * result is that opening a window and then immediately closing it will 2998 * preserve the initial window layout. The 'wfh' and 'wfw' settings are 2999 * respected when possible. 3000 */ 3001 static frame_T * 3002 win_altframe( 3003 win_T *win, 3004 tabpage_T *tp) // tab page "win" is in, NULL for current 3005 { 3006 frame_T *frp; 3007 frame_T *other_fr, *target_fr; 3008 3009 if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) 3010 return alt_tabpage()->tp_curwin->w_frame; 3011 3012 frp = win->w_frame; 3013 3014 if (frp->fr_prev == NULL) 3015 return frp->fr_next; 3016 if (frp->fr_next == NULL) 3017 return frp->fr_prev; 3018 3019 // By default the next window will get the space that was abandoned by this 3020 // window 3021 target_fr = frp->fr_next; 3022 other_fr = frp->fr_prev; 3023 3024 // If this is part of a column of windows and 'splitbelow' is true then the 3025 // previous window will get the space. 3026 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_COL && p_sb) 3027 { 3028 target_fr = frp->fr_prev; 3029 other_fr = frp->fr_next; 3030 } 3031 3032 // If this is part of a row of windows, and 'splitright' is true then the 3033 // previous window will get the space. 3034 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW && p_spr) 3035 { 3036 target_fr = frp->fr_prev; 3037 other_fr = frp->fr_next; 3038 } 3039 3040 // If 'wfh' or 'wfw' is set for the target and not for the alternate 3041 // window, reverse the selection. 3042 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW) 3043 { 3044 if (frame_fixed_width(target_fr) && !frame_fixed_width(other_fr)) 3045 target_fr = other_fr; 3046 } 3047 else 3048 { 3049 if (frame_fixed_height(target_fr) && !frame_fixed_height(other_fr)) 3050 target_fr = other_fr; 3051 } 3052 3053 return target_fr; 3054 } 3055 3056 /* 3057 * Return the tabpage that will be used if the current one is closed. 3058 */ 3059 static tabpage_T * 3060 alt_tabpage(void) 3061 { 3062 tabpage_T *tp; 3063 3064 // Use the next tab page if possible. 3065 if (curtab->tp_next != NULL) 3066 return curtab->tp_next; 3067 3068 // Find the last but one tab page. 3069 for (tp = first_tabpage; tp->tp_next != curtab; tp = tp->tp_next) 3070 ; 3071 return tp; 3072 } 3073 3074 /* 3075 * Find the left-upper window in frame "frp". 3076 */ 3077 static win_T * 3078 frame2win(frame_T *frp) 3079 { 3080 while (frp->fr_win == NULL) 3081 frp = frp->fr_child; 3082 return frp->fr_win; 3083 } 3084 3085 /* 3086 * Return TRUE if frame "frp" contains window "wp". 3087 */ 3088 static int 3089 frame_has_win(frame_T *frp, win_T *wp) 3090 { 3091 frame_T *p; 3092 3093 if (frp->fr_layout == FR_LEAF) 3094 return frp->fr_win == wp; 3095 3096 FOR_ALL_FRAMES(p, frp->fr_child) 3097 if (frame_has_win(p, wp)) 3098 return TRUE; 3099 return FALSE; 3100 } 3101 3102 /* 3103 * Set a new height for a frame. Recursively sets the height for contained 3104 * frames and windows. Caller must take care of positions. 3105 */ 3106 static void 3107 frame_new_height( 3108 frame_T *topfrp, 3109 int height, 3110 int topfirst, // resize topmost contained frame first 3111 int wfh) // obey 'winfixheight' when there is a choice; 3112 // may cause the height not to be set 3113 { 3114 frame_T *frp; 3115 int extra_lines; 3116 int h; 3117 3118 if (topfrp->fr_win != NULL) 3119 { 3120 // Simple case: just one window. 3121 win_new_height(topfrp->fr_win, 3122 height - topfrp->fr_win->w_status_height 3123 - WINBAR_HEIGHT(topfrp->fr_win)); 3124 } 3125 else if (topfrp->fr_layout == FR_ROW) 3126 { 3127 do 3128 { 3129 // All frames in this row get the same new height. 3130 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3131 { 3132 frame_new_height(frp, height, topfirst, wfh); 3133 if (frp->fr_height > height) 3134 { 3135 // Could not fit the windows, make the whole row higher. 3136 height = frp->fr_height; 3137 break; 3138 } 3139 } 3140 } 3141 while (frp != NULL); 3142 } 3143 else // fr_layout == FR_COL 3144 { 3145 // Complicated case: Resize a column of frames. Resize the bottom 3146 // frame first, frames above that when needed. 3147 3148 frp = topfrp->fr_child; 3149 if (wfh) 3150 // Advance past frames with one window with 'wfh' set. 3151 while (frame_fixed_height(frp)) 3152 { 3153 frp = frp->fr_next; 3154 if (frp == NULL) 3155 return; // no frame without 'wfh', give up 3156 } 3157 if (!topfirst) 3158 { 3159 // Find the bottom frame of this column 3160 while (frp->fr_next != NULL) 3161 frp = frp->fr_next; 3162 if (wfh) 3163 // Advance back for frames with one window with 'wfh' set. 3164 while (frame_fixed_height(frp)) 3165 frp = frp->fr_prev; 3166 } 3167 3168 extra_lines = height - topfrp->fr_height; 3169 if (extra_lines < 0) 3170 { 3171 // reduce height of contained frames, bottom or top frame first 3172 while (frp != NULL) 3173 { 3174 h = frame_minheight(frp, NULL); 3175 if (frp->fr_height + extra_lines < h) 3176 { 3177 extra_lines += frp->fr_height - h; 3178 frame_new_height(frp, h, topfirst, wfh); 3179 } 3180 else 3181 { 3182 frame_new_height(frp, frp->fr_height + extra_lines, 3183 topfirst, wfh); 3184 break; 3185 } 3186 if (topfirst) 3187 { 3188 do 3189 frp = frp->fr_next; 3190 while (wfh && frp != NULL && frame_fixed_height(frp)); 3191 } 3192 else 3193 { 3194 do 3195 frp = frp->fr_prev; 3196 while (wfh && frp != NULL && frame_fixed_height(frp)); 3197 } 3198 // Increase "height" if we could not reduce enough frames. 3199 if (frp == NULL) 3200 height -= extra_lines; 3201 } 3202 } 3203 else if (extra_lines > 0) 3204 { 3205 // increase height of bottom or top frame 3206 frame_new_height(frp, frp->fr_height + extra_lines, topfirst, wfh); 3207 } 3208 } 3209 topfrp->fr_height = height; 3210 } 3211 3212 /* 3213 * Return TRUE if height of frame "frp" should not be changed because of 3214 * the 'winfixheight' option. 3215 */ 3216 static int 3217 frame_fixed_height(frame_T *frp) 3218 { 3219 // frame with one window: fixed height if 'winfixheight' set. 3220 if (frp->fr_win != NULL) 3221 return frp->fr_win->w_p_wfh; 3222 3223 if (frp->fr_layout == FR_ROW) 3224 { 3225 // The frame is fixed height if one of the frames in the row is fixed 3226 // height. 3227 FOR_ALL_FRAMES(frp, frp->fr_child) 3228 if (frame_fixed_height(frp)) 3229 return TRUE; 3230 return FALSE; 3231 } 3232 3233 // frp->fr_layout == FR_COL: The frame is fixed height if all of the 3234 // frames in the row are fixed height. 3235 FOR_ALL_FRAMES(frp, frp->fr_child) 3236 if (!frame_fixed_height(frp)) 3237 return FALSE; 3238 return TRUE; 3239 } 3240 3241 /* 3242 * Return TRUE if width of frame "frp" should not be changed because of 3243 * the 'winfixwidth' option. 3244 */ 3245 static int 3246 frame_fixed_width(frame_T *frp) 3247 { 3248 // frame with one window: fixed width if 'winfixwidth' set. 3249 if (frp->fr_win != NULL) 3250 return frp->fr_win->w_p_wfw; 3251 3252 if (frp->fr_layout == FR_COL) 3253 { 3254 // The frame is fixed width if one of the frames in the row is fixed 3255 // width. 3256 FOR_ALL_FRAMES(frp, frp->fr_child) 3257 if (frame_fixed_width(frp)) 3258 return TRUE; 3259 return FALSE; 3260 } 3261 3262 // frp->fr_layout == FR_ROW: The frame is fixed width if all of the 3263 // frames in the row are fixed width. 3264 FOR_ALL_FRAMES(frp, frp->fr_child) 3265 if (!frame_fixed_width(frp)) 3266 return FALSE; 3267 return TRUE; 3268 } 3269 3270 /* 3271 * Add a status line to windows at the bottom of "frp". 3272 * Note: Does not check if there is room! 3273 */ 3274 static void 3275 frame_add_statusline(frame_T *frp) 3276 { 3277 win_T *wp; 3278 3279 if (frp->fr_layout == FR_LEAF) 3280 { 3281 wp = frp->fr_win; 3282 if (wp->w_status_height == 0) 3283 { 3284 if (wp->w_height > 0) // don't make it negative 3285 --wp->w_height; 3286 wp->w_status_height = STATUS_HEIGHT; 3287 } 3288 } 3289 else if (frp->fr_layout == FR_ROW) 3290 { 3291 // Handle all the frames in the row. 3292 FOR_ALL_FRAMES(frp, frp->fr_child) 3293 frame_add_statusline(frp); 3294 } 3295 else // frp->fr_layout == FR_COL 3296 { 3297 // Only need to handle the last frame in the column. 3298 for (frp = frp->fr_child; frp->fr_next != NULL; frp = frp->fr_next) 3299 ; 3300 frame_add_statusline(frp); 3301 } 3302 } 3303 3304 /* 3305 * Set width of a frame. Handles recursively going through contained frames. 3306 * May remove separator line for windows at the right side (for win_close()). 3307 */ 3308 static void 3309 frame_new_width( 3310 frame_T *topfrp, 3311 int width, 3312 int leftfirst, // resize leftmost contained frame first 3313 int wfw) // obey 'winfixwidth' when there is a choice; 3314 // may cause the width not to be set 3315 { 3316 frame_T *frp; 3317 int extra_cols; 3318 int w; 3319 win_T *wp; 3320 3321 if (topfrp->fr_layout == FR_LEAF) 3322 { 3323 // Simple case: just one window. 3324 wp = topfrp->fr_win; 3325 // Find out if there are any windows right of this one. 3326 for (frp = topfrp; frp->fr_parent != NULL; frp = frp->fr_parent) 3327 if (frp->fr_parent->fr_layout == FR_ROW && frp->fr_next != NULL) 3328 break; 3329 if (frp->fr_parent == NULL) 3330 wp->w_vsep_width = 0; 3331 win_new_width(wp, width - wp->w_vsep_width); 3332 } 3333 else if (topfrp->fr_layout == FR_COL) 3334 { 3335 do 3336 { 3337 // All frames in this column get the same new width. 3338 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3339 { 3340 frame_new_width(frp, width, leftfirst, wfw); 3341 if (frp->fr_width > width) 3342 { 3343 // Could not fit the windows, make whole column wider. 3344 width = frp->fr_width; 3345 break; 3346 } 3347 } 3348 } while (frp != NULL); 3349 } 3350 else // fr_layout == FR_ROW 3351 { 3352 // Complicated case: Resize a row of frames. Resize the rightmost 3353 // frame first, frames left of it when needed. 3354 3355 frp = topfrp->fr_child; 3356 if (wfw) 3357 // Advance past frames with one window with 'wfw' set. 3358 while (frame_fixed_width(frp)) 3359 { 3360 frp = frp->fr_next; 3361 if (frp == NULL) 3362 return; // no frame without 'wfw', give up 3363 } 3364 if (!leftfirst) 3365 { 3366 // Find the rightmost frame of this row 3367 while (frp->fr_next != NULL) 3368 frp = frp->fr_next; 3369 if (wfw) 3370 // Advance back for frames with one window with 'wfw' set. 3371 while (frame_fixed_width(frp)) 3372 frp = frp->fr_prev; 3373 } 3374 3375 extra_cols = width - topfrp->fr_width; 3376 if (extra_cols < 0) 3377 { 3378 // reduce frame width, rightmost frame first 3379 while (frp != NULL) 3380 { 3381 w = frame_minwidth(frp, NULL); 3382 if (frp->fr_width + extra_cols < w) 3383 { 3384 extra_cols += frp->fr_width - w; 3385 frame_new_width(frp, w, leftfirst, wfw); 3386 } 3387 else 3388 { 3389 frame_new_width(frp, frp->fr_width + extra_cols, 3390 leftfirst, wfw); 3391 break; 3392 } 3393 if (leftfirst) 3394 { 3395 do 3396 frp = frp->fr_next; 3397 while (wfw && frp != NULL && frame_fixed_width(frp)); 3398 } 3399 else 3400 { 3401 do 3402 frp = frp->fr_prev; 3403 while (wfw && frp != NULL && frame_fixed_width(frp)); 3404 } 3405 // Increase "width" if we could not reduce enough frames. 3406 if (frp == NULL) 3407 width -= extra_cols; 3408 } 3409 } 3410 else if (extra_cols > 0) 3411 { 3412 // increase width of rightmost frame 3413 frame_new_width(frp, frp->fr_width + extra_cols, leftfirst, wfw); 3414 } 3415 } 3416 topfrp->fr_width = width; 3417 } 3418 3419 /* 3420 * Add the vertical separator to windows at the right side of "frp". 3421 * Note: Does not check if there is room! 3422 */ 3423 static void 3424 frame_add_vsep(frame_T *frp) 3425 { 3426 win_T *wp; 3427 3428 if (frp->fr_layout == FR_LEAF) 3429 { 3430 wp = frp->fr_win; 3431 if (wp->w_vsep_width == 0) 3432 { 3433 if (wp->w_width > 0) // don't make it negative 3434 --wp->w_width; 3435 wp->w_vsep_width = 1; 3436 } 3437 } 3438 else if (frp->fr_layout == FR_COL) 3439 { 3440 // Handle all the frames in the column. 3441 FOR_ALL_FRAMES(frp, frp->fr_child) 3442 frame_add_vsep(frp); 3443 } 3444 else // frp->fr_layout == FR_ROW 3445 { 3446 // Only need to handle the last frame in the row. 3447 frp = frp->fr_child; 3448 while (frp->fr_next != NULL) 3449 frp = frp->fr_next; 3450 frame_add_vsep(frp); 3451 } 3452 } 3453 3454 /* 3455 * Set frame width from the window it contains. 3456 */ 3457 static void 3458 frame_fix_width(win_T *wp) 3459 { 3460 wp->w_frame->fr_width = wp->w_width + wp->w_vsep_width; 3461 } 3462 3463 /* 3464 * Set frame height from the window it contains. 3465 */ 3466 static void 3467 frame_fix_height(win_T *wp) 3468 { 3469 wp->w_frame->fr_height = VISIBLE_HEIGHT(wp) + wp->w_status_height; 3470 } 3471 3472 /* 3473 * Compute the minimal height for frame "topfrp". 3474 * Uses the 'winminheight' option. 3475 * When "next_curwin" isn't NULL, use p_wh for this window. 3476 * When "next_curwin" is NOWIN, don't use at least one line for the current 3477 * window. 3478 */ 3479 static int 3480 frame_minheight(frame_T *topfrp, win_T *next_curwin) 3481 { 3482 frame_T *frp; 3483 int m; 3484 int n; 3485 3486 if (topfrp->fr_win != NULL) 3487 { 3488 if (topfrp->fr_win == next_curwin) 3489 m = p_wh + topfrp->fr_win->w_status_height; 3490 else 3491 { 3492 // window: minimal height of the window plus status line 3493 m = p_wmh + topfrp->fr_win->w_status_height; 3494 if (topfrp->fr_win == curwin && next_curwin == NULL) 3495 { 3496 // Current window is minimal one line high and WinBar is 3497 // visible. 3498 if (p_wmh == 0) 3499 ++m; 3500 m += WINBAR_HEIGHT(curwin); 3501 } 3502 } 3503 } 3504 else if (topfrp->fr_layout == FR_ROW) 3505 { 3506 // get the minimal height from each frame in this row 3507 m = 0; 3508 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3509 { 3510 n = frame_minheight(frp, next_curwin); 3511 if (n > m) 3512 m = n; 3513 } 3514 } 3515 else 3516 { 3517 // Add up the minimal heights for all frames in this column. 3518 m = 0; 3519 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3520 m += frame_minheight(frp, next_curwin); 3521 } 3522 3523 return m; 3524 } 3525 3526 /* 3527 * Compute the minimal width for frame "topfrp". 3528 * When "next_curwin" isn't NULL, use p_wiw for this window. 3529 * When "next_curwin" is NOWIN, don't use at least one column for the current 3530 * window. 3531 */ 3532 static int 3533 frame_minwidth( 3534 frame_T *topfrp, 3535 win_T *next_curwin) // use p_wh and p_wiw for next_curwin 3536 { 3537 frame_T *frp; 3538 int m, n; 3539 3540 if (topfrp->fr_win != NULL) 3541 { 3542 if (topfrp->fr_win == next_curwin) 3543 m = p_wiw + topfrp->fr_win->w_vsep_width; 3544 else 3545 { 3546 // window: minimal width of the window plus separator column 3547 m = p_wmw + topfrp->fr_win->w_vsep_width; 3548 // Current window is minimal one column wide 3549 if (p_wmw == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3550 ++m; 3551 } 3552 } 3553 else if (topfrp->fr_layout == FR_COL) 3554 { 3555 // get the minimal width from each frame in this column 3556 m = 0; 3557 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3558 { 3559 n = frame_minwidth(frp, next_curwin); 3560 if (n > m) 3561 m = n; 3562 } 3563 } 3564 else 3565 { 3566 // Add up the minimal widths for all frames in this row. 3567 m = 0; 3568 FOR_ALL_FRAMES(frp, topfrp->fr_child) 3569 m += frame_minwidth(frp, next_curwin); 3570 } 3571 3572 return m; 3573 } 3574 3575 3576 /* 3577 * Try to close all windows except current one. 3578 * Buffers in the other windows become hidden if 'hidden' is set, or '!' is 3579 * used and the buffer was modified. 3580 * 3581 * Used by ":bdel" and ":only". 3582 */ 3583 void 3584 close_others( 3585 int message, 3586 int forceit) // always hide all other windows 3587 { 3588 win_T *wp; 3589 win_T *nextwp; 3590 int r; 3591 3592 if (one_window()) 3593 { 3594 if (message && !autocmd_busy) 3595 msg(_(m_onlyone)); 3596 return; 3597 } 3598 3599 // Be very careful here: autocommands may change the window layout. 3600 for (wp = firstwin; win_valid(wp); wp = nextwp) 3601 { 3602 nextwp = wp->w_next; 3603 if (wp != curwin) // don't close current window 3604 { 3605 3606 // Check if it's allowed to abandon this window 3607 r = can_abandon(wp->w_buffer, forceit); 3608 if (!win_valid(wp)) // autocommands messed wp up 3609 { 3610 nextwp = firstwin; 3611 continue; 3612 } 3613 if (!r) 3614 { 3615 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 3616 if (message && (p_confirm 3617 || (cmdmod.cmod_flags & CMOD_CONFIRM)) && p_write) 3618 { 3619 dialog_changed(wp->w_buffer, FALSE); 3620 if (!win_valid(wp)) // autocommands messed wp up 3621 { 3622 nextwp = firstwin; 3623 continue; 3624 } 3625 } 3626 if (bufIsChanged(wp->w_buffer)) 3627 #endif 3628 continue; 3629 } 3630 win_close(wp, !buf_hide(wp->w_buffer) 3631 && !bufIsChanged(wp->w_buffer)); 3632 } 3633 } 3634 3635 if (message && !ONE_WINDOW) 3636 emsg(_("E445: Other window contains changes")); 3637 } 3638 3639 static void 3640 win_init_empty(win_T *wp) 3641 { 3642 redraw_win_later(wp, NOT_VALID); 3643 wp->w_lines_valid = 0; 3644 wp->w_cursor.lnum = 1; 3645 wp->w_curswant = wp->w_cursor.col = 0; 3646 wp->w_cursor.coladd = 0; 3647 wp->w_pcmark.lnum = 1; // pcmark not cleared but set to line 1 3648 wp->w_pcmark.col = 0; 3649 wp->w_prev_pcmark.lnum = 0; 3650 wp->w_prev_pcmark.col = 0; 3651 wp->w_topline = 1; 3652 #ifdef FEAT_DIFF 3653 wp->w_topfill = 0; 3654 #endif 3655 wp->w_botline = 2; 3656 #if defined(FEAT_SYN_HL) || defined(FEAT_SPELL) 3657 wp->w_s = &wp->w_buffer->b_s; 3658 #endif 3659 } 3660 3661 /* 3662 * Init the current window "curwin". 3663 * Called when a new file is being edited. 3664 */ 3665 void 3666 curwin_init(void) 3667 { 3668 win_init_empty(curwin); 3669 } 3670 3671 /* 3672 * Allocate the first window and put an empty buffer in it. 3673 * Called from main(). 3674 * Return FAIL when something goes wrong (out of memory). 3675 */ 3676 int 3677 win_alloc_first(void) 3678 { 3679 if (win_alloc_firstwin(NULL) == FAIL) 3680 return FAIL; 3681 3682 first_tabpage = alloc_tabpage(); 3683 if (first_tabpage == NULL) 3684 return FAIL; 3685 first_tabpage->tp_topframe = topframe; 3686 curtab = first_tabpage; 3687 curtab->tp_firstwin = firstwin; 3688 curtab->tp_lastwin = lastwin; 3689 curtab->tp_curwin = curwin; 3690 3691 return OK; 3692 } 3693 3694 /* 3695 * Allocate and init a window that is not a regular window. 3696 * This can only be done after the first window is fully initialized, thus it 3697 * can't be in win_alloc_first(). 3698 */ 3699 win_T * 3700 win_alloc_popup_win(void) 3701 { 3702 win_T *wp; 3703 3704 wp = win_alloc(NULL, TRUE); 3705 if (wp != NULL) 3706 { 3707 // We need to initialize options with something, using the current 3708 // window makes most sense. 3709 win_init_some(wp, curwin); 3710 3711 RESET_BINDING(wp); 3712 new_frame(wp); 3713 } 3714 return wp; 3715 } 3716 3717 /* 3718 * Initialize window "wp" to display buffer "buf". 3719 */ 3720 void 3721 win_init_popup_win(win_T *wp, buf_T *buf) 3722 { 3723 wp->w_buffer = buf; 3724 ++buf->b_nwindows; 3725 win_init_empty(wp); // set cursor and topline to safe values 3726 3727 // Make sure w_localdir and globaldir are NULL to avoid a chdir() in 3728 // win_enter_ext(). 3729 VIM_CLEAR(wp->w_localdir); 3730 } 3731 3732 /* 3733 * Allocate the first window or the first window in a new tab page. 3734 * When "oldwin" is NULL create an empty buffer for it. 3735 * When "oldwin" is not NULL copy info from it to the new window. 3736 * Return FAIL when something goes wrong (out of memory). 3737 */ 3738 static int 3739 win_alloc_firstwin(win_T *oldwin) 3740 { 3741 curwin = win_alloc(NULL, FALSE); 3742 if (oldwin == NULL) 3743 { 3744 // Very first window, need to create an empty buffer for it and 3745 // initialize from scratch. 3746 curbuf = buflist_new(NULL, NULL, 1L, BLN_LISTED); 3747 if (curwin == NULL || curbuf == NULL) 3748 return FAIL; 3749 curwin->w_buffer = curbuf; 3750 #ifdef FEAT_SYN_HL 3751 curwin->w_s = &(curbuf->b_s); 3752 #endif 3753 curbuf->b_nwindows = 1; // there is one window 3754 curwin->w_alist = &global_alist; 3755 curwin_init(); // init current window 3756 } 3757 else 3758 { 3759 // First window in new tab page, initialize it from "oldwin". 3760 win_init(curwin, oldwin, 0); 3761 3762 // We don't want cursor- and scroll-binding in the first window. 3763 RESET_BINDING(curwin); 3764 } 3765 3766 new_frame(curwin); 3767 if (curwin->w_frame == NULL) 3768 return FAIL; 3769 topframe = curwin->w_frame; 3770 topframe->fr_width = Columns; 3771 topframe->fr_height = Rows - p_ch; 3772 3773 return OK; 3774 } 3775 3776 /* 3777 * Create a frame for window "wp". 3778 */ 3779 static void 3780 new_frame(win_T *wp) 3781 { 3782 frame_T *frp = ALLOC_CLEAR_ONE(frame_T); 3783 3784 wp->w_frame = frp; 3785 if (frp != NULL) 3786 { 3787 frp->fr_layout = FR_LEAF; 3788 frp->fr_win = wp; 3789 } 3790 } 3791 3792 /* 3793 * Initialize the window and frame size to the maximum. 3794 */ 3795 void 3796 win_init_size(void) 3797 { 3798 firstwin->w_height = ROWS_AVAIL; 3799 topframe->fr_height = ROWS_AVAIL; 3800 firstwin->w_width = Columns; 3801 topframe->fr_width = Columns; 3802 } 3803 3804 /* 3805 * Allocate a new tabpage_T and init the values. 3806 * Returns NULL when out of memory. 3807 */ 3808 static tabpage_T * 3809 alloc_tabpage(void) 3810 { 3811 tabpage_T *tp; 3812 # ifdef FEAT_GUI 3813 int i; 3814 # endif 3815 3816 3817 tp = ALLOC_CLEAR_ONE(tabpage_T); 3818 if (tp == NULL) 3819 return NULL; 3820 3821 # ifdef FEAT_EVAL 3822 // init t: variables 3823 tp->tp_vars = dict_alloc(); 3824 if (tp->tp_vars == NULL) 3825 { 3826 vim_free(tp); 3827 return NULL; 3828 } 3829 init_var_dict(tp->tp_vars, &tp->tp_winvar, VAR_SCOPE); 3830 # endif 3831 3832 # ifdef FEAT_GUI 3833 for (i = 0; i < 3; i++) 3834 tp->tp_prev_which_scrollbars[i] = -1; 3835 # endif 3836 # ifdef FEAT_DIFF 3837 tp->tp_diff_invalid = TRUE; 3838 # endif 3839 tp->tp_ch_used = p_ch; 3840 3841 return tp; 3842 } 3843 3844 void 3845 free_tabpage(tabpage_T *tp) 3846 { 3847 int idx; 3848 3849 # ifdef FEAT_DIFF 3850 diff_clear(tp); 3851 # endif 3852 # ifdef FEAT_PROP_POPUP 3853 while (tp->tp_first_popupwin != NULL) 3854 popup_close_tabpage(tp, tp->tp_first_popupwin->w_id, TRUE); 3855 #endif 3856 for (idx = 0; idx < SNAP_COUNT; ++idx) 3857 clear_snapshot(tp, idx); 3858 #ifdef FEAT_EVAL 3859 vars_clear(&tp->tp_vars->dv_hashtab); // free all t: variables 3860 hash_init(&tp->tp_vars->dv_hashtab); 3861 unref_var_dict(tp->tp_vars); 3862 #endif 3863 3864 if (tp == lastused_tabpage) 3865 lastused_tabpage = NULL; 3866 3867 vim_free(tp->tp_localdir); 3868 vim_free(tp->tp_prevdir); 3869 3870 #ifdef FEAT_PYTHON 3871 python_tabpage_free(tp); 3872 #endif 3873 3874 #ifdef FEAT_PYTHON3 3875 python3_tabpage_free(tp); 3876 #endif 3877 3878 vim_free(tp); 3879 } 3880 3881 /* 3882 * Create a new Tab page with one window. 3883 * It will edit the current buffer, like after ":split". 3884 * When "after" is 0 put it just after the current Tab page. 3885 * Otherwise put it just before tab page "after". 3886 * Return FAIL or OK. 3887 */ 3888 int 3889 win_new_tabpage(int after) 3890 { 3891 tabpage_T *tp = curtab; 3892 tabpage_T *prev_tp = curtab; 3893 tabpage_T *newtp; 3894 int n; 3895 3896 newtp = alloc_tabpage(); 3897 if (newtp == NULL) 3898 return FAIL; 3899 3900 // Remember the current windows in this Tab page. 3901 if (leave_tabpage(curbuf, TRUE) == FAIL) 3902 { 3903 vim_free(newtp); 3904 return FAIL; 3905 } 3906 curtab = newtp; 3907 3908 newtp->tp_localdir = (tp->tp_localdir == NULL) 3909 ? NULL : vim_strsave(tp->tp_localdir); 3910 // Create a new empty window. 3911 if (win_alloc_firstwin(tp->tp_curwin) == OK) 3912 { 3913 // Make the new Tab page the new topframe. 3914 if (after == 1) 3915 { 3916 // New tab page becomes the first one. 3917 newtp->tp_next = first_tabpage; 3918 first_tabpage = newtp; 3919 } 3920 else 3921 { 3922 if (after > 0) 3923 { 3924 // Put new tab page before tab page "after". 3925 n = 2; 3926 for (tp = first_tabpage; tp->tp_next != NULL 3927 && n < after; tp = tp->tp_next) 3928 ++n; 3929 } 3930 newtp->tp_next = tp->tp_next; 3931 tp->tp_next = newtp; 3932 } 3933 newtp->tp_firstwin = newtp->tp_lastwin = newtp->tp_curwin = curwin; 3934 3935 win_init_size(); 3936 firstwin->w_winrow = tabline_height(); 3937 win_comp_scroll(curwin); 3938 3939 newtp->tp_topframe = topframe; 3940 last_status(FALSE); 3941 3942 lastused_tabpage = prev_tp; 3943 3944 #if defined(FEAT_GUI) 3945 // When 'guioptions' includes 'L' or 'R' may have to remove or add 3946 // scrollbars. Have to update them anyway. 3947 gui_may_update_scrollbars(); 3948 #endif 3949 #ifdef FEAT_JOB_CHANNEL 3950 entering_window(curwin); 3951 #endif 3952 3953 redraw_all_later(NOT_VALID); 3954 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 3955 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 3956 apply_autocmds(EVENT_TABNEW, NULL, NULL, FALSE, curbuf); 3957 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3958 return OK; 3959 } 3960 3961 // Failed, get back the previous Tab page 3962 enter_tabpage(curtab, curbuf, TRUE, TRUE); 3963 return FAIL; 3964 } 3965 3966 /* 3967 * Open a new tab page if ":tab cmd" was used. It will edit the same buffer, 3968 * like with ":split". 3969 * Returns OK if a new tab page was created, FAIL otherwise. 3970 */ 3971 static int 3972 may_open_tabpage(void) 3973 { 3974 int n = (cmdmod.cmod_tab == 0) 3975 ? postponed_split_tab : cmdmod.cmod_tab; 3976 3977 if (n != 0) 3978 { 3979 cmdmod.cmod_tab = 0; // reset it to avoid doing it twice 3980 postponed_split_tab = 0; 3981 return win_new_tabpage(n); 3982 } 3983 return FAIL; 3984 } 3985 3986 /* 3987 * Create up to "maxcount" tabpages with empty windows. 3988 * Returns the number of resulting tab pages. 3989 */ 3990 int 3991 make_tabpages(int maxcount) 3992 { 3993 int count = maxcount; 3994 int todo; 3995 3996 // Limit to 'tabpagemax' tabs. 3997 if (count > p_tpm) 3998 count = p_tpm; 3999 4000 /* 4001 * Don't execute autocommands while creating the tab pages. Must do that 4002 * when putting the buffers in the windows. 4003 */ 4004 block_autocmds(); 4005 4006 for (todo = count - 1; todo > 0; --todo) 4007 if (win_new_tabpage(0) == FAIL) 4008 break; 4009 4010 unblock_autocmds(); 4011 4012 // return actual number of tab pages 4013 return (count - todo); 4014 } 4015 4016 /* 4017 * Return TRUE when "tpc" points to a valid tab page. 4018 */ 4019 int 4020 valid_tabpage(tabpage_T *tpc) 4021 { 4022 tabpage_T *tp; 4023 4024 FOR_ALL_TABPAGES(tp) 4025 if (tp == tpc) 4026 return TRUE; 4027 return FALSE; 4028 } 4029 4030 /* 4031 * Return TRUE when "tpc" points to a valid tab page and at least one window is 4032 * valid. 4033 */ 4034 int 4035 valid_tabpage_win(tabpage_T *tpc) 4036 { 4037 tabpage_T *tp; 4038 win_T *wp; 4039 4040 FOR_ALL_TABPAGES(tp) 4041 { 4042 if (tp == tpc) 4043 { 4044 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 4045 { 4046 if (win_valid_any_tab(wp)) 4047 return TRUE; 4048 } 4049 return FALSE; 4050 } 4051 } 4052 // shouldn't happen 4053 return FALSE; 4054 } 4055 4056 /* 4057 * Close tabpage "tab", assuming it has no windows in it. 4058 * There must be another tabpage or this will crash. 4059 */ 4060 void 4061 close_tabpage(tabpage_T *tab) 4062 { 4063 tabpage_T *ptp; 4064 4065 if (tab == first_tabpage) 4066 { 4067 first_tabpage = tab->tp_next; 4068 ptp = first_tabpage; 4069 } 4070 else 4071 { 4072 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tab; 4073 ptp = ptp->tp_next) 4074 ; 4075 assert(ptp != NULL); 4076 ptp->tp_next = tab->tp_next; 4077 } 4078 4079 goto_tabpage_tp(ptp, FALSE, FALSE); 4080 free_tabpage(tab); 4081 } 4082 4083 /* 4084 * Find tab page "n" (first one is 1). Returns NULL when not found. 4085 */ 4086 tabpage_T * 4087 find_tabpage(int n) 4088 { 4089 tabpage_T *tp; 4090 int i = 1; 4091 4092 if (n == 0) 4093 return curtab; 4094 4095 for (tp = first_tabpage; tp != NULL && i != n; tp = tp->tp_next) 4096 ++i; 4097 return tp; 4098 } 4099 4100 /* 4101 * Get index of tab page "tp". First one has index 1. 4102 * When not found returns number of tab pages plus one. 4103 */ 4104 int 4105 tabpage_index(tabpage_T *ftp) 4106 { 4107 int i = 1; 4108 tabpage_T *tp; 4109 4110 for (tp = first_tabpage; tp != NULL && tp != ftp; tp = tp->tp_next) 4111 ++i; 4112 return i; 4113 } 4114 4115 /* 4116 * Prepare for leaving the current tab page. 4117 * When autocommands change "curtab" we don't leave the tab page and return 4118 * FAIL. 4119 * Careful: When OK is returned need to get a new tab page very very soon! 4120 */ 4121 static int 4122 leave_tabpage( 4123 buf_T *new_curbuf UNUSED, // what is going to be the new curbuf, 4124 // NULL if unknown 4125 int trigger_leave_autocmds UNUSED) 4126 { 4127 tabpage_T *tp = curtab; 4128 4129 #ifdef FEAT_JOB_CHANNEL 4130 leaving_window(curwin); 4131 #endif 4132 reset_VIsual_and_resel(); // stop Visual mode 4133 if (trigger_leave_autocmds) 4134 { 4135 if (new_curbuf != curbuf) 4136 { 4137 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4138 if (curtab != tp) 4139 return FAIL; 4140 } 4141 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4142 if (curtab != tp) 4143 return FAIL; 4144 apply_autocmds(EVENT_TABLEAVE, NULL, NULL, FALSE, curbuf); 4145 if (curtab != tp) 4146 return FAIL; 4147 } 4148 #if defined(FEAT_GUI) 4149 // Remove the scrollbars. They may be added back later. 4150 if (gui.in_use) 4151 gui_remove_scrollbars(); 4152 #endif 4153 tp->tp_curwin = curwin; 4154 tp->tp_prevwin = prevwin; 4155 tp->tp_firstwin = firstwin; 4156 tp->tp_lastwin = lastwin; 4157 tp->tp_old_Rows = Rows; 4158 tp->tp_old_Columns = Columns; 4159 firstwin = NULL; 4160 lastwin = NULL; 4161 return OK; 4162 } 4163 4164 /* 4165 * Start using tab page "tp". 4166 * Only to be used after leave_tabpage() or freeing the current tab page. 4167 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4168 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4169 */ 4170 static void 4171 enter_tabpage( 4172 tabpage_T *tp, 4173 buf_T *old_curbuf UNUSED, 4174 int trigger_enter_autocmds, 4175 int trigger_leave_autocmds) 4176 { 4177 int row; 4178 int old_off = tp->tp_firstwin->w_winrow; 4179 win_T *next_prevwin = tp->tp_prevwin; 4180 tabpage_T *last_tab = curtab; 4181 4182 curtab = tp; 4183 firstwin = tp->tp_firstwin; 4184 lastwin = tp->tp_lastwin; 4185 topframe = tp->tp_topframe; 4186 4187 // We would like doing the TabEnter event first, but we don't have a 4188 // valid current window yet, which may break some commands. 4189 // This triggers autocommands, thus may make "tp" invalid. 4190 (void)win_enter_ext(tp->tp_curwin, WEE_CURWIN_INVALID 4191 | (trigger_enter_autocmds ? WEE_TRIGGER_ENTER_AUTOCMDS : 0) 4192 | (trigger_leave_autocmds ? WEE_TRIGGER_LEAVE_AUTOCMDS : 0)); 4193 prevwin = next_prevwin; 4194 4195 last_status(FALSE); // status line may appear or disappear 4196 row = win_comp_pos(); // recompute w_winrow for all windows 4197 #ifdef FEAT_DIFF 4198 diff_need_scrollbind = TRUE; 4199 #endif 4200 4201 // The tabpage line may have appeared or disappeared, may need to resize 4202 // the frames for that. When the Vim window was resized need to update 4203 // frame sizes too. Use the stored value of p_ch, so that it can be 4204 // different for each tab page. 4205 if (p_ch != curtab->tp_ch_used) 4206 clear_cmdline = TRUE; 4207 p_ch = curtab->tp_ch_used; 4208 4209 // When cmdheight is changed in a tab page with '<C-w>-', cmdline_row is 4210 // changed but p_ch and tp_ch_used are not changed. Thus we also need to 4211 // check cmdline_row. 4212 if ((row < cmdline_row) && (cmdline_row <= Rows - p_ch)) 4213 clear_cmdline = TRUE; 4214 4215 if (curtab->tp_old_Rows != Rows || (old_off != firstwin->w_winrow 4216 #ifdef FEAT_GUI_TABLINE 4217 && !gui_use_tabline() 4218 #endif 4219 )) 4220 shell_new_rows(); 4221 if (curtab->tp_old_Columns != Columns && starting == 0) 4222 shell_new_columns(); // update window widths 4223 4224 lastused_tabpage = last_tab; 4225 4226 #if defined(FEAT_GUI) 4227 // When 'guioptions' includes 'L' or 'R' may have to remove or add 4228 // scrollbars. Have to update them anyway. 4229 gui_may_update_scrollbars(); 4230 #endif 4231 4232 // Apply autocommands after updating the display, when 'rows' and 4233 // 'columns' have been set correctly. 4234 if (trigger_enter_autocmds) 4235 { 4236 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 4237 if (old_curbuf != curbuf) 4238 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4239 } 4240 4241 redraw_all_later(NOT_VALID); 4242 } 4243 4244 /* 4245 * Go to tab page "n". For ":tab N" and "Ngt". 4246 * When "n" is 9999 go to the last tab page. 4247 */ 4248 void 4249 goto_tabpage(int n) 4250 { 4251 tabpage_T *tp = NULL; // shut up compiler 4252 tabpage_T *ttp; 4253 int i; 4254 4255 if (text_locked()) 4256 { 4257 // Not allowed when editing the command line. 4258 text_locked_msg(); 4259 return; 4260 } 4261 4262 // If there is only one it can't work. 4263 if (first_tabpage->tp_next == NULL) 4264 { 4265 if (n > 1) 4266 beep_flush(); 4267 return; 4268 } 4269 4270 if (n == 0) 4271 { 4272 // No count, go to next tab page, wrap around end. 4273 if (curtab->tp_next == NULL) 4274 tp = first_tabpage; 4275 else 4276 tp = curtab->tp_next; 4277 } 4278 else if (n < 0) 4279 { 4280 // "gT": go to previous tab page, wrap around end. "N gT" repeats 4281 // this N times. 4282 ttp = curtab; 4283 for (i = n; i < 0; ++i) 4284 { 4285 for (tp = first_tabpage; tp->tp_next != ttp && tp->tp_next != NULL; 4286 tp = tp->tp_next) 4287 ; 4288 ttp = tp; 4289 } 4290 } 4291 else if (n == 9999) 4292 { 4293 // Go to last tab page. 4294 for (tp = first_tabpage; tp->tp_next != NULL; tp = tp->tp_next) 4295 ; 4296 } 4297 else 4298 { 4299 // Go to tab page "n". 4300 tp = find_tabpage(n); 4301 if (tp == NULL) 4302 { 4303 beep_flush(); 4304 return; 4305 } 4306 } 4307 4308 goto_tabpage_tp(tp, TRUE, TRUE); 4309 4310 #ifdef FEAT_GUI_TABLINE 4311 if (gui_use_tabline()) 4312 gui_mch_set_curtab(tabpage_index(curtab)); 4313 #endif 4314 } 4315 4316 /* 4317 * Go to tabpage "tp". 4318 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4319 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4320 * Note: doesn't update the GUI tab. 4321 */ 4322 void 4323 goto_tabpage_tp( 4324 tabpage_T *tp, 4325 int trigger_enter_autocmds, 4326 int trigger_leave_autocmds) 4327 { 4328 // Don't repeat a message in another tab page. 4329 set_keep_msg(NULL, 0); 4330 4331 if (tp != curtab && leave_tabpage(tp->tp_curwin->w_buffer, 4332 trigger_leave_autocmds) == OK) 4333 { 4334 if (valid_tabpage(tp)) 4335 enter_tabpage(tp, curbuf, trigger_enter_autocmds, 4336 trigger_leave_autocmds); 4337 else 4338 enter_tabpage(curtab, curbuf, trigger_enter_autocmds, 4339 trigger_leave_autocmds); 4340 } 4341 } 4342 4343 /* 4344 * Go to the last accessed tab page, if there is one. 4345 * Return OK or FAIL 4346 */ 4347 int 4348 goto_tabpage_lastused(void) 4349 { 4350 if (valid_tabpage(lastused_tabpage)) 4351 { 4352 goto_tabpage_tp(lastused_tabpage, TRUE, TRUE); 4353 return OK; 4354 } 4355 return FAIL; 4356 } 4357 4358 /* 4359 * Enter window "wp" in tab page "tp". 4360 * Also updates the GUI tab. 4361 */ 4362 void 4363 goto_tabpage_win(tabpage_T *tp, win_T *wp) 4364 { 4365 goto_tabpage_tp(tp, TRUE, TRUE); 4366 if (curtab == tp && win_valid(wp)) 4367 { 4368 win_enter(wp, TRUE); 4369 # ifdef FEAT_GUI_TABLINE 4370 if (gui_use_tabline()) 4371 gui_mch_set_curtab(tabpage_index(curtab)); 4372 # endif 4373 } 4374 } 4375 4376 /* 4377 * Move the current tab page to after tab page "nr". 4378 */ 4379 void 4380 tabpage_move(int nr) 4381 { 4382 int n = 1; 4383 tabpage_T *tp, *tp_dst; 4384 4385 if (first_tabpage->tp_next == NULL) 4386 return; 4387 4388 for (tp = first_tabpage; tp->tp_next != NULL && n < nr; tp = tp->tp_next) 4389 ++n; 4390 4391 if (tp == curtab || (nr > 0 && tp->tp_next != NULL 4392 && tp->tp_next == curtab)) 4393 return; 4394 4395 tp_dst = tp; 4396 4397 // Remove the current tab page from the list of tab pages. 4398 if (curtab == first_tabpage) 4399 first_tabpage = curtab->tp_next; 4400 else 4401 { 4402 FOR_ALL_TABPAGES(tp) 4403 if (tp->tp_next == curtab) 4404 break; 4405 if (tp == NULL) // "cannot happen" 4406 return; 4407 tp->tp_next = curtab->tp_next; 4408 } 4409 4410 // Re-insert it at the specified position. 4411 if (nr <= 0) 4412 { 4413 curtab->tp_next = first_tabpage; 4414 first_tabpage = curtab; 4415 } 4416 else 4417 { 4418 curtab->tp_next = tp_dst->tp_next; 4419 tp_dst->tp_next = curtab; 4420 } 4421 4422 // Need to redraw the tabline. Tab page contents doesn't change. 4423 redraw_tabline = TRUE; 4424 } 4425 4426 4427 /* 4428 * Go to another window. 4429 * When jumping to another buffer, stop Visual mode. Do this before 4430 * changing windows so we can yank the selection into the '*' register. 4431 * When jumping to another window on the same buffer, adjust its cursor 4432 * position to keep the same Visual area. 4433 */ 4434 void 4435 win_goto(win_T *wp) 4436 { 4437 #ifdef FEAT_CONCEAL 4438 win_T *owp = curwin; 4439 #endif 4440 4441 #ifdef FEAT_PROP_POPUP 4442 if (ERROR_IF_ANY_POPUP_WINDOW) 4443 return; 4444 if (popup_is_popup(wp)) 4445 { 4446 emsg(_("E366: Not allowed to enter a popup window")); 4447 return; 4448 } 4449 #endif 4450 if (text_and_win_locked()) 4451 { 4452 beep_flush(); 4453 text_locked_msg(); 4454 return; 4455 } 4456 if (curbuf_locked()) 4457 return; 4458 4459 if (wp->w_buffer != curbuf) 4460 reset_VIsual_and_resel(); 4461 else if (VIsual_active) 4462 wp->w_cursor = curwin->w_cursor; 4463 4464 #ifdef FEAT_GUI 4465 need_mouse_correct = TRUE; 4466 #endif 4467 win_enter(wp, TRUE); 4468 4469 #ifdef FEAT_CONCEAL 4470 // Conceal cursor line in previous window, unconceal in current window. 4471 if (win_valid(owp) && owp->w_p_cole > 0 && !msg_scrolled) 4472 redrawWinline(owp, owp->w_cursor.lnum); 4473 if (curwin->w_p_cole > 0 && !msg_scrolled) 4474 need_cursor_line_redraw = TRUE; 4475 #endif 4476 } 4477 4478 #if defined(FEAT_PERL) || defined(FEAT_LUA) || defined(PROTO) 4479 /* 4480 * Find window number "winnr" (counting top to bottom). 4481 */ 4482 win_T * 4483 win_find_nr(int winnr) 4484 { 4485 win_T *wp; 4486 4487 FOR_ALL_WINDOWS(wp) 4488 if (--winnr == 0) 4489 break; 4490 return wp; 4491 } 4492 #endif 4493 4494 #if ((defined(FEAT_PYTHON) || defined(FEAT_PYTHON3))) || defined(PROTO) 4495 /* 4496 * Find the tabpage for window "win". 4497 */ 4498 tabpage_T * 4499 win_find_tabpage(win_T *win) 4500 { 4501 win_T *wp; 4502 tabpage_T *tp; 4503 4504 FOR_ALL_TAB_WINDOWS(tp, wp) 4505 if (wp == win) 4506 return tp; 4507 return NULL; 4508 } 4509 #endif 4510 4511 /* 4512 * Get the above or below neighbor window of the specified window. 4513 * up - TRUE for the above neighbor 4514 * count - nth neighbor window 4515 * Returns the specified window if the neighbor is not found. 4516 */ 4517 win_T * 4518 win_vert_neighbor(tabpage_T *tp, win_T *wp, int up, long count) 4519 { 4520 frame_T *fr; 4521 frame_T *nfr; 4522 frame_T *foundfr; 4523 4524 #ifdef FEAT_PROP_POPUP 4525 if (popup_is_popup(wp)) 4526 // popups don't have neighbors. 4527 return NULL; 4528 #endif 4529 foundfr = wp->w_frame; 4530 while (count--) 4531 { 4532 /* 4533 * First go upwards in the tree of frames until we find a upwards or 4534 * downwards neighbor. 4535 */ 4536 fr = foundfr; 4537 for (;;) 4538 { 4539 if (fr == tp->tp_topframe) 4540 goto end; 4541 if (up) 4542 nfr = fr->fr_prev; 4543 else 4544 nfr = fr->fr_next; 4545 if (fr->fr_parent->fr_layout == FR_COL && nfr != NULL) 4546 break; 4547 fr = fr->fr_parent; 4548 } 4549 4550 /* 4551 * Now go downwards to find the bottom or top frame in it. 4552 */ 4553 for (;;) 4554 { 4555 if (nfr->fr_layout == FR_LEAF) 4556 { 4557 foundfr = nfr; 4558 break; 4559 } 4560 fr = nfr->fr_child; 4561 if (nfr->fr_layout == FR_ROW) 4562 { 4563 // Find the frame at the cursor row. 4564 while (fr->fr_next != NULL 4565 && frame2win(fr)->w_wincol + fr->fr_width 4566 <= wp->w_wincol + wp->w_wcol) 4567 fr = fr->fr_next; 4568 } 4569 if (nfr->fr_layout == FR_COL && up) 4570 while (fr->fr_next != NULL) 4571 fr = fr->fr_next; 4572 nfr = fr; 4573 } 4574 } 4575 end: 4576 return foundfr != NULL ? foundfr->fr_win : NULL; 4577 } 4578 4579 /* 4580 * Move to window above or below "count" times. 4581 */ 4582 static void 4583 win_goto_ver( 4584 int up, // TRUE to go to win above 4585 long count) 4586 { 4587 win_T *win; 4588 4589 #ifdef FEAT_PROP_POPUP 4590 if (ERROR_IF_TERM_POPUP_WINDOW) 4591 return; 4592 #endif 4593 win = win_vert_neighbor(curtab, curwin, up, count); 4594 if (win != NULL) 4595 win_goto(win); 4596 } 4597 4598 /* 4599 * Get the left or right neighbor window of the specified window. 4600 * left - TRUE for the left neighbor 4601 * count - nth neighbor window 4602 * Returns the specified window if the neighbor is not found. 4603 */ 4604 win_T * 4605 win_horz_neighbor(tabpage_T *tp, win_T *wp, int left, long count) 4606 { 4607 frame_T *fr; 4608 frame_T *nfr; 4609 frame_T *foundfr; 4610 4611 #ifdef FEAT_PROP_POPUP 4612 if (popup_is_popup(wp)) 4613 // popups don't have neighbors. 4614 return NULL; 4615 #endif 4616 foundfr = wp->w_frame; 4617 while (count--) 4618 { 4619 /* 4620 * First go upwards in the tree of frames until we find a left or 4621 * right neighbor. 4622 */ 4623 fr = foundfr; 4624 for (;;) 4625 { 4626 if (fr == tp->tp_topframe) 4627 goto end; 4628 if (left) 4629 nfr = fr->fr_prev; 4630 else 4631 nfr = fr->fr_next; 4632 if (fr->fr_parent->fr_layout == FR_ROW && nfr != NULL) 4633 break; 4634 fr = fr->fr_parent; 4635 } 4636 4637 /* 4638 * Now go downwards to find the leftmost or rightmost frame in it. 4639 */ 4640 for (;;) 4641 { 4642 if (nfr->fr_layout == FR_LEAF) 4643 { 4644 foundfr = nfr; 4645 break; 4646 } 4647 fr = nfr->fr_child; 4648 if (nfr->fr_layout == FR_COL) 4649 { 4650 // Find the frame at the cursor row. 4651 while (fr->fr_next != NULL 4652 && frame2win(fr)->w_winrow + fr->fr_height 4653 <= wp->w_winrow + wp->w_wrow) 4654 fr = fr->fr_next; 4655 } 4656 if (nfr->fr_layout == FR_ROW && left) 4657 while (fr->fr_next != NULL) 4658 fr = fr->fr_next; 4659 nfr = fr; 4660 } 4661 } 4662 end: 4663 return foundfr != NULL ? foundfr->fr_win : NULL; 4664 } 4665 4666 /* 4667 * Move to left or right window. 4668 */ 4669 static void 4670 win_goto_hor( 4671 int left, // TRUE to go to left win 4672 long count) 4673 { 4674 win_T *win; 4675 4676 #ifdef FEAT_PROP_POPUP 4677 if (ERROR_IF_TERM_POPUP_WINDOW) 4678 return; 4679 #endif 4680 win = win_horz_neighbor(curtab, curwin, left, count); 4681 if (win != NULL) 4682 win_goto(win); 4683 } 4684 4685 /* 4686 * Make window "wp" the current window. 4687 */ 4688 void 4689 win_enter(win_T *wp, int undo_sync) 4690 { 4691 (void)win_enter_ext(wp, (undo_sync ? WEE_UNDO_SYNC : 0) 4692 | WEE_TRIGGER_ENTER_AUTOCMDS | WEE_TRIGGER_LEAVE_AUTOCMDS); 4693 } 4694 4695 /* 4696 * Make window "wp" the current window. 4697 * Can be called with "flags" containing WEE_CURWIN_INVALID, which means that 4698 * curwin has just been closed and isn't valid. 4699 * Returns TRUE when dont_parse_messages was decremented. 4700 */ 4701 static int 4702 win_enter_ext(win_T *wp, int flags) 4703 { 4704 int other_buffer = FALSE; 4705 int curwin_invalid = (flags & WEE_CURWIN_INVALID); 4706 int did_decrement = FALSE; 4707 4708 if (wp == curwin && !curwin_invalid) // nothing to do 4709 return FALSE; 4710 4711 #ifdef FEAT_JOB_CHANNEL 4712 if (!curwin_invalid) 4713 leaving_window(curwin); 4714 #endif 4715 4716 if (!curwin_invalid && (flags & WEE_TRIGGER_LEAVE_AUTOCMDS)) 4717 { 4718 /* 4719 * Be careful: If autocommands delete the window, return now. 4720 */ 4721 if (wp->w_buffer != curbuf) 4722 { 4723 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4724 other_buffer = TRUE; 4725 if (!win_valid(wp)) 4726 return FALSE; 4727 } 4728 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4729 if (!win_valid(wp)) 4730 return FALSE; 4731 #ifdef FEAT_EVAL 4732 // autocmds may abort script processing 4733 if (aborting()) 4734 return FALSE; 4735 #endif 4736 } 4737 4738 // sync undo before leaving the current buffer 4739 if ((flags & WEE_UNDO_SYNC) && curbuf != wp->w_buffer) 4740 u_sync(FALSE); 4741 4742 // Might need to scroll the old window before switching, e.g., when the 4743 // cursor was moved. 4744 update_topline(); 4745 4746 // may have to copy the buffer options when 'cpo' contains 'S' 4747 if (wp->w_buffer != curbuf) 4748 buf_copy_options(wp->w_buffer, BCO_ENTER | BCO_NOHELP); 4749 if (!curwin_invalid) 4750 { 4751 prevwin = curwin; // remember for CTRL-W p 4752 curwin->w_redr_status = TRUE; 4753 } 4754 curwin = wp; 4755 curbuf = wp->w_buffer; 4756 check_cursor(); 4757 if (!virtual_active()) 4758 curwin->w_cursor.coladd = 0; 4759 changed_line_abv_curs(); // assume cursor position needs updating 4760 4761 // Now it is OK to parse messages again, which may be needed in 4762 // autocommands. 4763 #ifdef MESSAGE_QUEUE 4764 if (flags & WEE_ALLOW_PARSE_MESSAGES) 4765 { 4766 --dont_parse_messages; 4767 did_decrement = TRUE; 4768 } 4769 #endif 4770 4771 if (curwin->w_localdir != NULL || curtab->tp_localdir != NULL) 4772 { 4773 char_u *dirname; 4774 4775 // Window or tab has a local directory: Save current directory as 4776 // global directory (unless that was done already) and change to the 4777 // local directory. 4778 if (globaldir == NULL) 4779 { 4780 char_u cwd[MAXPATHL]; 4781 4782 if (mch_dirname(cwd, MAXPATHL) == OK) 4783 globaldir = vim_strsave(cwd); 4784 } 4785 if (curwin->w_localdir != NULL) 4786 dirname = curwin->w_localdir; 4787 else 4788 dirname = curtab->tp_localdir; 4789 4790 if (mch_chdir((char *)dirname) == 0) 4791 shorten_fnames(TRUE); 4792 } 4793 else if (globaldir != NULL) 4794 { 4795 // Window doesn't have a local directory and we are not in the global 4796 // directory: Change to the global directory. 4797 vim_ignored = mch_chdir((char *)globaldir); 4798 VIM_CLEAR(globaldir); 4799 shorten_fnames(TRUE); 4800 } 4801 4802 #ifdef FEAT_JOB_CHANNEL 4803 entering_window(curwin); 4804 #endif 4805 // Careful: autocommands may close the window and make "wp" invalid 4806 if (flags & WEE_TRIGGER_NEW_AUTOCMDS) 4807 apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); 4808 if (flags & WEE_TRIGGER_ENTER_AUTOCMDS) 4809 { 4810 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 4811 if (other_buffer) 4812 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4813 } 4814 4815 #ifdef FEAT_TITLE 4816 maketitle(); 4817 #endif 4818 curwin->w_redr_status = TRUE; 4819 #ifdef FEAT_TERMINAL 4820 if (bt_terminal(curwin->w_buffer)) 4821 // terminal is likely in another mode 4822 redraw_mode = TRUE; 4823 #endif 4824 redraw_tabline = TRUE; 4825 if (restart_edit) 4826 redraw_later(VALID); // causes status line redraw 4827 4828 // set window height to desired minimal value 4829 if (curwin->w_height < p_wh && !curwin->w_p_wfh 4830 #ifdef FEAT_PROP_POPUP 4831 && !popup_is_popup(curwin) 4832 #endif 4833 ) 4834 win_setheight((int)p_wh); 4835 else if (curwin->w_height == 0) 4836 win_setheight(1); 4837 4838 // set window width to desired minimal value 4839 if (curwin->w_width < p_wiw && !curwin->w_p_wfw) 4840 win_setwidth((int)p_wiw); 4841 4842 setmouse(); // in case jumped to/from help buffer 4843 4844 // Change directories when the 'acd' option is set. 4845 DO_AUTOCHDIR; 4846 4847 return did_decrement; 4848 } 4849 4850 4851 /* 4852 * Jump to the first open window that contains buffer "buf", if one exists. 4853 * Returns a pointer to the window found, otherwise NULL. 4854 */ 4855 win_T * 4856 buf_jump_open_win(buf_T *buf) 4857 { 4858 win_T *wp = NULL; 4859 4860 if (curwin->w_buffer == buf) 4861 wp = curwin; 4862 else 4863 FOR_ALL_WINDOWS(wp) 4864 if (wp->w_buffer == buf) 4865 break; 4866 if (wp != NULL) 4867 win_enter(wp, FALSE); 4868 return wp; 4869 } 4870 4871 /* 4872 * Jump to the first open window in any tab page that contains buffer "buf", 4873 * if one exists. 4874 * Returns a pointer to the window found, otherwise NULL. 4875 */ 4876 win_T * 4877 buf_jump_open_tab(buf_T *buf) 4878 { 4879 win_T *wp = buf_jump_open_win(buf); 4880 tabpage_T *tp; 4881 4882 if (wp != NULL) 4883 return wp; 4884 4885 FOR_ALL_TABPAGES(tp) 4886 if (tp != curtab) 4887 { 4888 FOR_ALL_WINDOWS_IN_TAB(tp, wp) 4889 if (wp->w_buffer == buf) 4890 break; 4891 if (wp != NULL) 4892 { 4893 goto_tabpage_win(tp, wp); 4894 if (curwin != wp) 4895 wp = NULL; // something went wrong 4896 break; 4897 } 4898 } 4899 return wp; 4900 } 4901 4902 static int last_win_id = LOWEST_WIN_ID - 1; 4903 4904 /* 4905 * Allocate a window structure and link it in the window list when "hidden" is 4906 * FALSE. 4907 */ 4908 static win_T * 4909 win_alloc(win_T *after UNUSED, int hidden UNUSED) 4910 { 4911 win_T *new_wp; 4912 4913 /* 4914 * allocate window structure and linesizes arrays 4915 */ 4916 new_wp = ALLOC_CLEAR_ONE(win_T); 4917 if (new_wp == NULL) 4918 return NULL; 4919 4920 if (win_alloc_lines(new_wp) == FAIL) 4921 { 4922 vim_free(new_wp); 4923 return NULL; 4924 } 4925 4926 new_wp->w_id = ++last_win_id; 4927 4928 #ifdef FEAT_EVAL 4929 // init w: variables 4930 new_wp->w_vars = dict_alloc(); 4931 if (new_wp->w_vars == NULL) 4932 { 4933 win_free_lsize(new_wp); 4934 vim_free(new_wp); 4935 return NULL; 4936 } 4937 init_var_dict(new_wp->w_vars, &new_wp->w_winvar, VAR_SCOPE); 4938 #endif 4939 4940 // Don't execute autocommands while the window is not properly 4941 // initialized yet. gui_create_scrollbar() may trigger a FocusGained 4942 // event. 4943 block_autocmds(); 4944 4945 /* 4946 * link the window in the window list 4947 */ 4948 if (!hidden) 4949 win_append(after, new_wp); 4950 new_wp->w_wincol = 0; 4951 new_wp->w_width = Columns; 4952 4953 // position the display and the cursor at the top of the file. 4954 new_wp->w_topline = 1; 4955 #ifdef FEAT_DIFF 4956 new_wp->w_topfill = 0; 4957 #endif 4958 new_wp->w_botline = 2; 4959 new_wp->w_cursor.lnum = 1; 4960 new_wp->w_scbind_pos = 1; 4961 4962 // use global option value for global-local options 4963 new_wp->w_p_so = -1; 4964 new_wp->w_p_siso = -1; 4965 4966 // We won't calculate w_fraction until resizing the window 4967 new_wp->w_fraction = 0; 4968 new_wp->w_prev_fraction_row = -1; 4969 4970 #ifdef FEAT_GUI 4971 if (gui.in_use) 4972 { 4973 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_LEFT], 4974 SBAR_LEFT, new_wp); 4975 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_RIGHT], 4976 SBAR_RIGHT, new_wp); 4977 } 4978 #endif 4979 #ifdef FEAT_FOLDING 4980 foldInitWin(new_wp); 4981 #endif 4982 unblock_autocmds(); 4983 #ifdef FEAT_SEARCH_EXTRA 4984 new_wp->w_match_head = NULL; 4985 new_wp->w_next_match_id = 4; 4986 #endif 4987 return new_wp; 4988 } 4989 4990 /* 4991 * Remove window 'wp' from the window list and free the structure. 4992 */ 4993 static void 4994 win_free( 4995 win_T *wp, 4996 tabpage_T *tp) // tab page "win" is in, NULL for current 4997 { 4998 int i; 4999 buf_T *buf; 5000 wininfo_T *wip; 5001 5002 #ifdef FEAT_FOLDING 5003 clearFolding(wp); 5004 #endif 5005 5006 // reduce the reference count to the argument list. 5007 alist_unlink(wp->w_alist); 5008 5009 // Don't execute autocommands while the window is halfway being deleted. 5010 // gui_mch_destroy_scrollbar() may trigger a FocusGained event. 5011 block_autocmds(); 5012 5013 #ifdef FEAT_LUA 5014 lua_window_free(wp); 5015 #endif 5016 5017 #ifdef FEAT_MZSCHEME 5018 mzscheme_window_free(wp); 5019 #endif 5020 5021 #ifdef FEAT_PERL 5022 perl_win_free(wp); 5023 #endif 5024 5025 #ifdef FEAT_PYTHON 5026 python_window_free(wp); 5027 #endif 5028 5029 #ifdef FEAT_PYTHON3 5030 python3_window_free(wp); 5031 #endif 5032 5033 #ifdef FEAT_TCL 5034 tcl_window_free(wp); 5035 #endif 5036 5037 #ifdef FEAT_RUBY 5038 ruby_window_free(wp); 5039 #endif 5040 5041 clear_winopt(&wp->w_onebuf_opt); 5042 clear_winopt(&wp->w_allbuf_opt); 5043 5044 #ifdef FEAT_EVAL 5045 vars_clear(&wp->w_vars->dv_hashtab); // free all w: variables 5046 hash_init(&wp->w_vars->dv_hashtab); 5047 unref_var_dict(wp->w_vars); 5048 #endif 5049 5050 { 5051 tabpage_T *ttp; 5052 5053 if (prevwin == wp) 5054 prevwin = NULL; 5055 FOR_ALL_TABPAGES(ttp) 5056 if (ttp->tp_prevwin == wp) 5057 ttp->tp_prevwin = NULL; 5058 } 5059 win_free_lsize(wp); 5060 5061 for (i = 0; i < wp->w_tagstacklen; ++i) 5062 { 5063 vim_free(wp->w_tagstack[i].tagname); 5064 vim_free(wp->w_tagstack[i].user_data); 5065 } 5066 vim_free(wp->w_localdir); 5067 vim_free(wp->w_prevdir); 5068 5069 // Remove the window from the b_wininfo lists, it may happen that the 5070 // freed memory is re-used for another window. 5071 FOR_ALL_BUFFERS(buf) 5072 FOR_ALL_BUF_WININFO(buf, wip) 5073 if (wip->wi_win == wp) 5074 { 5075 wininfo_T *wip2; 5076 5077 // If there already is an entry with "wi_win" set to NULL it 5078 // must be removed, it would never be used. 5079 // Skip "wip" itself, otherwise Coverity complains. 5080 for (wip2 = buf->b_wininfo; wip2 != NULL; wip2 = wip2->wi_next) 5081 if (wip2 != wip && wip2->wi_win == NULL) 5082 { 5083 if (wip2->wi_next != NULL) 5084 wip2->wi_next->wi_prev = wip2->wi_prev; 5085 if (wip2->wi_prev == NULL) 5086 buf->b_wininfo = wip2->wi_next; 5087 else 5088 wip2->wi_prev->wi_next = wip2->wi_next; 5089 free_wininfo(wip2); 5090 break; 5091 } 5092 5093 wip->wi_win = NULL; 5094 } 5095 5096 #ifdef FEAT_SEARCH_EXTRA 5097 clear_matches(wp); 5098 #endif 5099 5100 #ifdef FEAT_JUMPLIST 5101 free_jumplist(wp); 5102 #endif 5103 5104 #ifdef FEAT_QUICKFIX 5105 qf_free_all(wp); 5106 #endif 5107 5108 #ifdef FEAT_GUI 5109 if (gui.in_use) 5110 { 5111 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_LEFT]); 5112 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_RIGHT]); 5113 } 5114 #endif // FEAT_GUI 5115 5116 #ifdef FEAT_MENU 5117 remove_winbar(wp); 5118 #endif 5119 #ifdef FEAT_PROP_POPUP 5120 free_callback(&wp->w_close_cb); 5121 free_callback(&wp->w_filter_cb); 5122 for (i = 0; i < 4; ++i) 5123 VIM_CLEAR(wp->w_border_highlight[i]); 5124 vim_free(wp->w_scrollbar_highlight); 5125 vim_free(wp->w_thumb_highlight); 5126 vim_free(wp->w_popup_title); 5127 list_unref(wp->w_popup_mask); 5128 vim_free(wp->w_popup_mask_cells); 5129 #endif 5130 5131 #ifdef FEAT_SYN_HL 5132 vim_free(wp->w_p_cc_cols); 5133 #endif 5134 5135 if (win_valid_any_tab(wp)) 5136 win_remove(wp, tp); 5137 if (autocmd_busy) 5138 { 5139 wp->w_next = au_pending_free_win; 5140 au_pending_free_win = wp; 5141 } 5142 else 5143 vim_free(wp); 5144 5145 unblock_autocmds(); 5146 } 5147 5148 /* 5149 * Return TRUE if "wp" is not in the list of windows: the autocmd window or a 5150 * popup window. 5151 */ 5152 static int 5153 win_unlisted(win_T *wp) 5154 { 5155 return wp == aucmd_win || WIN_IS_POPUP(wp); 5156 } 5157 5158 #if defined(FEAT_PROP_POPUP) || defined(PROTO) 5159 /* 5160 * Free a popup window. This does not take the window out of the window list 5161 * and assumes there is only one toplevel frame, no split. 5162 */ 5163 void 5164 win_free_popup(win_T *win) 5165 { 5166 if (bt_popup(win->w_buffer)) 5167 win_close_buffer(win, DOBUF_WIPE_REUSE, FALSE); 5168 else 5169 close_buffer(win, win->w_buffer, 0, FALSE, FALSE); 5170 # if defined(FEAT_TIMERS) 5171 if (win->w_popup_timer != NULL) 5172 stop_timer(win->w_popup_timer); 5173 # endif 5174 vim_free(win->w_frame); 5175 win_free(win, NULL); 5176 } 5177 #endif 5178 5179 /* 5180 * Append window "wp" in the window list after window "after". 5181 */ 5182 static void 5183 win_append(win_T *after, win_T *wp) 5184 { 5185 win_T *before; 5186 5187 if (after == NULL) // after NULL is in front of the first 5188 before = firstwin; 5189 else 5190 before = after->w_next; 5191 5192 wp->w_next = before; 5193 wp->w_prev = after; 5194 if (after == NULL) 5195 firstwin = wp; 5196 else 5197 after->w_next = wp; 5198 if (before == NULL) 5199 lastwin = wp; 5200 else 5201 before->w_prev = wp; 5202 } 5203 5204 /* 5205 * Remove a window from the window list. 5206 */ 5207 void 5208 win_remove( 5209 win_T *wp, 5210 tabpage_T *tp) // tab page "win" is in, NULL for current 5211 { 5212 if (wp->w_prev != NULL) 5213 wp->w_prev->w_next = wp->w_next; 5214 else if (tp == NULL) 5215 firstwin = curtab->tp_firstwin = wp->w_next; 5216 else 5217 tp->tp_firstwin = wp->w_next; 5218 5219 if (wp->w_next != NULL) 5220 wp->w_next->w_prev = wp->w_prev; 5221 else if (tp == NULL) 5222 lastwin = curtab->tp_lastwin = wp->w_prev; 5223 else 5224 tp->tp_lastwin = wp->w_prev; 5225 } 5226 5227 /* 5228 * Append frame "frp" in a frame list after frame "after". 5229 */ 5230 static void 5231 frame_append(frame_T *after, frame_T *frp) 5232 { 5233 frp->fr_next = after->fr_next; 5234 after->fr_next = frp; 5235 if (frp->fr_next != NULL) 5236 frp->fr_next->fr_prev = frp; 5237 frp->fr_prev = after; 5238 } 5239 5240 /* 5241 * Insert frame "frp" in a frame list before frame "before". 5242 */ 5243 static void 5244 frame_insert(frame_T *before, frame_T *frp) 5245 { 5246 frp->fr_next = before; 5247 frp->fr_prev = before->fr_prev; 5248 before->fr_prev = frp; 5249 if (frp->fr_prev != NULL) 5250 frp->fr_prev->fr_next = frp; 5251 else 5252 frp->fr_parent->fr_child = frp; 5253 } 5254 5255 /* 5256 * Remove a frame from a frame list. 5257 */ 5258 static void 5259 frame_remove(frame_T *frp) 5260 { 5261 if (frp->fr_prev != NULL) 5262 frp->fr_prev->fr_next = frp->fr_next; 5263 else 5264 frp->fr_parent->fr_child = frp->fr_next; 5265 if (frp->fr_next != NULL) 5266 frp->fr_next->fr_prev = frp->fr_prev; 5267 } 5268 5269 /* 5270 * Allocate w_lines[] for window "wp". 5271 * Return FAIL for failure, OK for success. 5272 */ 5273 int 5274 win_alloc_lines(win_T *wp) 5275 { 5276 wp->w_lines_valid = 0; 5277 wp->w_lines = ALLOC_CLEAR_MULT(wline_T, Rows ); 5278 if (wp->w_lines == NULL) 5279 return FAIL; 5280 return OK; 5281 } 5282 5283 /* 5284 * free lsize arrays for a window 5285 */ 5286 void 5287 win_free_lsize(win_T *wp) 5288 { 5289 // TODO: why would wp be NULL here? 5290 if (wp != NULL) 5291 VIM_CLEAR(wp->w_lines); 5292 } 5293 5294 /* 5295 * Called from win_new_shellsize() after Rows changed. 5296 * This only does the current tab page, others must be done when made active. 5297 */ 5298 void 5299 shell_new_rows(void) 5300 { 5301 int h = (int)ROWS_AVAIL; 5302 5303 if (firstwin == NULL) // not initialized yet 5304 return; 5305 if (h < frame_minheight(topframe, NULL)) 5306 h = frame_minheight(topframe, NULL); 5307 5308 // First try setting the heights of windows with 'winfixheight'. If 5309 // that doesn't result in the right height, forget about that option. 5310 frame_new_height(topframe, h, FALSE, TRUE); 5311 if (!frame_check_height(topframe, h)) 5312 frame_new_height(topframe, h, FALSE, FALSE); 5313 5314 (void)win_comp_pos(); // recompute w_winrow and w_wincol 5315 compute_cmdrow(); 5316 curtab->tp_ch_used = p_ch; 5317 5318 #if 0 5319 // Disabled: don't want making the screen smaller make a window larger. 5320 if (p_ea) 5321 win_equal(curwin, FALSE, 'v'); 5322 #endif 5323 } 5324 5325 /* 5326 * Called from win_new_shellsize() after Columns changed. 5327 */ 5328 void 5329 shell_new_columns(void) 5330 { 5331 if (firstwin == NULL) // not initialized yet 5332 return; 5333 5334 // First try setting the widths of windows with 'winfixwidth'. If that 5335 // doesn't result in the right width, forget about that option. 5336 frame_new_width(topframe, (int)Columns, FALSE, TRUE); 5337 if (!frame_check_width(topframe, Columns)) 5338 frame_new_width(topframe, (int)Columns, FALSE, FALSE); 5339 5340 (void)win_comp_pos(); // recompute w_winrow and w_wincol 5341 #if 0 5342 // Disabled: don't want making the screen smaller make a window larger. 5343 if (p_ea) 5344 win_equal(curwin, FALSE, 'h'); 5345 #endif 5346 } 5347 5348 #if defined(FEAT_CMDWIN) || defined(PROTO) 5349 /* 5350 * Save the size of all windows in "gap". 5351 */ 5352 void 5353 win_size_save(garray_T *gap) 5354 5355 { 5356 win_T *wp; 5357 5358 ga_init2(gap, (int)sizeof(int), 1); 5359 if (ga_grow(gap, win_count() * 2 + 1) == OK) 5360 { 5361 // first entry is value of 'lines' 5362 ((int *)gap->ga_data)[gap->ga_len++] = Rows; 5363 5364 FOR_ALL_WINDOWS(wp) 5365 { 5366 ((int *)gap->ga_data)[gap->ga_len++] = 5367 wp->w_width + wp->w_vsep_width; 5368 ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height; 5369 } 5370 } 5371 } 5372 5373 /* 5374 * Restore window sizes, but only if the number of windows is still the same 5375 * and 'lines' didn't change. 5376 * Does not free the growarray. 5377 */ 5378 void 5379 win_size_restore(garray_T *gap) 5380 { 5381 win_T *wp; 5382 int i, j; 5383 5384 if (win_count() * 2 + 1 == gap->ga_len 5385 && ((int *)gap->ga_data)[0] == Rows) 5386 { 5387 // The order matters, because frames contain other frames, but it's 5388 // difficult to get right. The easy way out is to do it twice. 5389 for (j = 0; j < 2; ++j) 5390 { 5391 i = 1; 5392 FOR_ALL_WINDOWS(wp) 5393 { 5394 frame_setwidth(wp->w_frame, ((int *)gap->ga_data)[i++]); 5395 win_setheight_win(((int *)gap->ga_data)[i++], wp); 5396 } 5397 } 5398 // recompute the window positions 5399 (void)win_comp_pos(); 5400 } 5401 } 5402 #endif // FEAT_CMDWIN 5403 5404 /* 5405 * Update the position for all windows, using the width and height of the 5406 * frames. 5407 * Returns the row just after the last window. 5408 */ 5409 int 5410 win_comp_pos(void) 5411 { 5412 int row = tabline_height(); 5413 int col = 0; 5414 5415 frame_comp_pos(topframe, &row, &col); 5416 return row; 5417 } 5418 5419 /* 5420 * Update the position of the windows in frame "topfrp", using the width and 5421 * height of the frames. 5422 * "*row" and "*col" are the top-left position of the frame. They are updated 5423 * to the bottom-right position plus one. 5424 */ 5425 static void 5426 frame_comp_pos(frame_T *topfrp, int *row, int *col) 5427 { 5428 win_T *wp; 5429 frame_T *frp; 5430 int startcol; 5431 int startrow; 5432 int h; 5433 5434 wp = topfrp->fr_win; 5435 if (wp != NULL) 5436 { 5437 if (wp->w_winrow != *row || wp->w_wincol != *col) 5438 { 5439 // position changed, redraw 5440 wp->w_winrow = *row; 5441 wp->w_wincol = *col; 5442 redraw_win_later(wp, NOT_VALID); 5443 wp->w_redr_status = TRUE; 5444 } 5445 // WinBar will not show if the window height is zero 5446 h = VISIBLE_HEIGHT(wp) + wp->w_status_height; 5447 *row += h > topfrp->fr_height ? topfrp->fr_height : h; 5448 *col += wp->w_width + wp->w_vsep_width; 5449 } 5450 else 5451 { 5452 startrow = *row; 5453 startcol = *col; 5454 FOR_ALL_FRAMES(frp, topfrp->fr_child) 5455 { 5456 if (topfrp->fr_layout == FR_ROW) 5457 *row = startrow; // all frames are at the same row 5458 else 5459 *col = startcol; // all frames are at the same col 5460 frame_comp_pos(frp, row, col); 5461 } 5462 } 5463 } 5464 5465 /* 5466 * Set current window height and take care of repositioning other windows to 5467 * fit around it. 5468 */ 5469 void 5470 win_setheight(int height) 5471 { 5472 win_setheight_win(height, curwin); 5473 } 5474 5475 /* 5476 * Set the window height of window "win" and take care of repositioning other 5477 * windows to fit around it. 5478 */ 5479 void 5480 win_setheight_win(int height, win_T *win) 5481 { 5482 int row; 5483 5484 if (win == curwin) 5485 { 5486 // Always keep current window at least one line high, even when 5487 // 'winminheight' is zero. 5488 if (height < p_wmh) 5489 height = p_wmh; 5490 if (height == 0) 5491 height = 1; 5492 height += WINBAR_HEIGHT(curwin); 5493 } 5494 5495 frame_setheight(win->w_frame, height + win->w_status_height); 5496 5497 // recompute the window positions 5498 row = win_comp_pos(); 5499 5500 /* 5501 * If there is extra space created between the last window and the command 5502 * line, clear it. 5503 */ 5504 if (full_screen && msg_scrolled == 0 && row < cmdline_row) 5505 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5506 cmdline_row = row; 5507 msg_row = row; 5508 msg_col = 0; 5509 5510 redraw_all_later(NOT_VALID); 5511 } 5512 5513 /* 5514 * Set the height of a frame to "height" and take care that all frames and 5515 * windows inside it are resized. Also resize frames on the left and right if 5516 * the are in the same FR_ROW frame. 5517 * 5518 * Strategy: 5519 * If the frame is part of a FR_COL frame, try fitting the frame in that 5520 * frame. If that doesn't work (the FR_COL frame is too small), recursively 5521 * go to containing frames to resize them and make room. 5522 * If the frame is part of a FR_ROW frame, all frames must be resized as well. 5523 * Check for the minimal height of the FR_ROW frame. 5524 * At the top level we can also use change the command line height. 5525 */ 5526 static void 5527 frame_setheight(frame_T *curfrp, int height) 5528 { 5529 int room; // total number of lines available 5530 int take; // number of lines taken from other windows 5531 int room_cmdline; // lines available from cmdline 5532 int run; 5533 frame_T *frp; 5534 int h; 5535 int room_reserved; 5536 5537 // If the height already is the desired value, nothing to do. 5538 if (curfrp->fr_height == height) 5539 return; 5540 5541 if (curfrp->fr_parent == NULL) 5542 { 5543 // topframe: can only change the command line 5544 if (height > ROWS_AVAIL) 5545 height = ROWS_AVAIL; 5546 if (height > 0) 5547 frame_new_height(curfrp, height, FALSE, FALSE); 5548 } 5549 else if (curfrp->fr_parent->fr_layout == FR_ROW) 5550 { 5551 // Row of frames: Also need to resize frames left and right of this 5552 // one. First check for the minimal height of these. 5553 h = frame_minheight(curfrp->fr_parent, NULL); 5554 if (height < h) 5555 height = h; 5556 frame_setheight(curfrp->fr_parent, height); 5557 } 5558 else 5559 { 5560 /* 5561 * Column of frames: try to change only frames in this column. 5562 */ 5563 /* 5564 * Do this twice: 5565 * 1: compute room available, if it's not enough try resizing the 5566 * containing frame. 5567 * 2: compute the room available and adjust the height to it. 5568 * Try not to reduce the height of a window with 'winfixheight' set. 5569 */ 5570 for (run = 1; run <= 2; ++run) 5571 { 5572 room = 0; 5573 room_reserved = 0; 5574 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5575 { 5576 if (frp != curfrp 5577 && frp->fr_win != NULL 5578 && frp->fr_win->w_p_wfh) 5579 room_reserved += frp->fr_height; 5580 room += frp->fr_height; 5581 if (frp != curfrp) 5582 room -= frame_minheight(frp, NULL); 5583 } 5584 if (curfrp->fr_width != Columns) 5585 room_cmdline = 0; 5586 else 5587 { 5588 room_cmdline = Rows - p_ch - (lastwin->w_winrow 5589 + VISIBLE_HEIGHT(lastwin) 5590 + lastwin->w_status_height); 5591 if (room_cmdline < 0) 5592 room_cmdline = 0; 5593 } 5594 5595 if (height <= room + room_cmdline) 5596 break; 5597 if (run == 2 || curfrp->fr_width == Columns) 5598 { 5599 if (height > room + room_cmdline) 5600 height = room + room_cmdline; 5601 break; 5602 } 5603 frame_setheight(curfrp->fr_parent, height 5604 + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1); 5605 } 5606 5607 /* 5608 * Compute the number of lines we will take from others frames (can be 5609 * negative!). 5610 */ 5611 take = height - curfrp->fr_height; 5612 5613 // If there is not enough room, also reduce the height of a window 5614 // with 'winfixheight' set. 5615 if (height > room + room_cmdline - room_reserved) 5616 room_reserved = room + room_cmdline - height; 5617 // If there is only a 'winfixheight' window and making the 5618 // window smaller, need to make the other window taller. 5619 if (take < 0 && room - curfrp->fr_height < room_reserved) 5620 room_reserved = 0; 5621 5622 if (take > 0 && room_cmdline > 0) 5623 { 5624 // use lines from cmdline first 5625 if (take < room_cmdline) 5626 room_cmdline = take; 5627 take -= room_cmdline; 5628 topframe->fr_height += room_cmdline; 5629 } 5630 5631 /* 5632 * set the current frame to the new height 5633 */ 5634 frame_new_height(curfrp, height, FALSE, FALSE); 5635 5636 /* 5637 * First take lines from the frames after the current frame. If 5638 * that is not enough, takes lines from frames above the current 5639 * frame. 5640 */ 5641 for (run = 0; run < 2; ++run) 5642 { 5643 if (run == 0) 5644 frp = curfrp->fr_next; // 1st run: start with next window 5645 else 5646 frp = curfrp->fr_prev; // 2nd run: start with prev window 5647 while (frp != NULL && take != 0) 5648 { 5649 h = frame_minheight(frp, NULL); 5650 if (room_reserved > 0 5651 && frp->fr_win != NULL 5652 && frp->fr_win->w_p_wfh) 5653 { 5654 if (room_reserved >= frp->fr_height) 5655 room_reserved -= frp->fr_height; 5656 else 5657 { 5658 if (frp->fr_height - room_reserved > take) 5659 room_reserved = frp->fr_height - take; 5660 take -= frp->fr_height - room_reserved; 5661 frame_new_height(frp, room_reserved, FALSE, FALSE); 5662 room_reserved = 0; 5663 } 5664 } 5665 else 5666 { 5667 if (frp->fr_height - take < h) 5668 { 5669 take -= frp->fr_height - h; 5670 frame_new_height(frp, h, FALSE, FALSE); 5671 } 5672 else 5673 { 5674 frame_new_height(frp, frp->fr_height - take, 5675 FALSE, FALSE); 5676 take = 0; 5677 } 5678 } 5679 if (run == 0) 5680 frp = frp->fr_next; 5681 else 5682 frp = frp->fr_prev; 5683 } 5684 } 5685 } 5686 } 5687 5688 /* 5689 * Set current window width and take care of repositioning other windows to 5690 * fit around it. 5691 */ 5692 void 5693 win_setwidth(int width) 5694 { 5695 win_setwidth_win(width, curwin); 5696 } 5697 5698 void 5699 win_setwidth_win(int width, win_T *wp) 5700 { 5701 // Always keep current window at least one column wide, even when 5702 // 'winminwidth' is zero. 5703 if (wp == curwin) 5704 { 5705 if (width < p_wmw) 5706 width = p_wmw; 5707 if (width == 0) 5708 width = 1; 5709 } 5710 else if (width < 0) 5711 width = 0; 5712 5713 frame_setwidth(wp->w_frame, width + wp->w_vsep_width); 5714 5715 // recompute the window positions 5716 (void)win_comp_pos(); 5717 5718 redraw_all_later(NOT_VALID); 5719 } 5720 5721 /* 5722 * Set the width of a frame to "width" and take care that all frames and 5723 * windows inside it are resized. Also resize frames above and below if the 5724 * are in the same FR_ROW frame. 5725 * 5726 * Strategy is similar to frame_setheight(). 5727 */ 5728 static void 5729 frame_setwidth(frame_T *curfrp, int width) 5730 { 5731 int room; // total number of lines available 5732 int take; // number of lines taken from other windows 5733 int run; 5734 frame_T *frp; 5735 int w; 5736 int room_reserved; 5737 5738 // If the width already is the desired value, nothing to do. 5739 if (curfrp->fr_width == width) 5740 return; 5741 5742 if (curfrp->fr_parent == NULL) 5743 // topframe: can't change width 5744 return; 5745 5746 if (curfrp->fr_parent->fr_layout == FR_COL) 5747 { 5748 // Column of frames: Also need to resize frames above and below of 5749 // this one. First check for the minimal width of these. 5750 w = frame_minwidth(curfrp->fr_parent, NULL); 5751 if (width < w) 5752 width = w; 5753 frame_setwidth(curfrp->fr_parent, width); 5754 } 5755 else 5756 { 5757 /* 5758 * Row of frames: try to change only frames in this row. 5759 * 5760 * Do this twice: 5761 * 1: compute room available, if it's not enough try resizing the 5762 * containing frame. 5763 * 2: compute the room available and adjust the width to it. 5764 */ 5765 for (run = 1; run <= 2; ++run) 5766 { 5767 room = 0; 5768 room_reserved = 0; 5769 FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) 5770 { 5771 if (frp != curfrp 5772 && frp->fr_win != NULL 5773 && frp->fr_win->w_p_wfw) 5774 room_reserved += frp->fr_width; 5775 room += frp->fr_width; 5776 if (frp != curfrp) 5777 room -= frame_minwidth(frp, NULL); 5778 } 5779 5780 if (width <= room) 5781 break; 5782 if (run == 2 || curfrp->fr_height >= ROWS_AVAIL) 5783 { 5784 if (width > room) 5785 width = room; 5786 break; 5787 } 5788 frame_setwidth(curfrp->fr_parent, width 5789 + frame_minwidth(curfrp->fr_parent, NOWIN) - (int)p_wmw - 1); 5790 } 5791 5792 /* 5793 * Compute the number of lines we will take from others frames (can be 5794 * negative!). 5795 */ 5796 take = width - curfrp->fr_width; 5797 5798 // If there is not enough room, also reduce the width of a window 5799 // with 'winfixwidth' set. 5800 if (width > room - room_reserved) 5801 room_reserved = room - width; 5802 // If there is only a 'winfixwidth' window and making the 5803 // window smaller, need to make the other window narrower. 5804 if (take < 0 && room - curfrp->fr_width < room_reserved) 5805 room_reserved = 0; 5806 5807 /* 5808 * set the current frame to the new width 5809 */ 5810 frame_new_width(curfrp, width, FALSE, FALSE); 5811 5812 /* 5813 * First take lines from the frames right of the current frame. If 5814 * that is not enough, takes lines from frames left of the current 5815 * frame. 5816 */ 5817 for (run = 0; run < 2; ++run) 5818 { 5819 if (run == 0) 5820 frp = curfrp->fr_next; // 1st run: start with next window 5821 else 5822 frp = curfrp->fr_prev; // 2nd run: start with prev window 5823 while (frp != NULL && take != 0) 5824 { 5825 w = frame_minwidth(frp, NULL); 5826 if (room_reserved > 0 5827 && frp->fr_win != NULL 5828 && frp->fr_win->w_p_wfw) 5829 { 5830 if (room_reserved >= frp->fr_width) 5831 room_reserved -= frp->fr_width; 5832 else 5833 { 5834 if (frp->fr_width - room_reserved > take) 5835 room_reserved = frp->fr_width - take; 5836 take -= frp->fr_width - room_reserved; 5837 frame_new_width(frp, room_reserved, FALSE, FALSE); 5838 room_reserved = 0; 5839 } 5840 } 5841 else 5842 { 5843 if (frp->fr_width - take < w) 5844 { 5845 take -= frp->fr_width - w; 5846 frame_new_width(frp, w, FALSE, FALSE); 5847 } 5848 else 5849 { 5850 frame_new_width(frp, frp->fr_width - take, 5851 FALSE, FALSE); 5852 take = 0; 5853 } 5854 } 5855 if (run == 0) 5856 frp = frp->fr_next; 5857 else 5858 frp = frp->fr_prev; 5859 } 5860 } 5861 } 5862 } 5863 5864 /* 5865 * Check 'winminheight' for a valid value and reduce it if needed. 5866 */ 5867 void 5868 win_setminheight(void) 5869 { 5870 int room; 5871 int needed; 5872 int first = TRUE; 5873 5874 // loop until there is a 'winminheight' that is possible 5875 while (p_wmh > 0) 5876 { 5877 room = Rows - p_ch; 5878 needed = min_rows() - 1; // 1 was added for the cmdline 5879 if (room >= needed) 5880 break; 5881 --p_wmh; 5882 if (first) 5883 { 5884 emsg(_(e_not_enough_room)); 5885 first = FALSE; 5886 } 5887 } 5888 } 5889 5890 /* 5891 * Check 'winminwidth' for a valid value and reduce it if needed. 5892 */ 5893 void 5894 win_setminwidth(void) 5895 { 5896 int room; 5897 int needed; 5898 int first = TRUE; 5899 5900 // loop until there is a 'winminheight' that is possible 5901 while (p_wmw > 0) 5902 { 5903 room = Columns; 5904 needed = frame_minwidth(topframe, NULL); 5905 if (room >= needed) 5906 break; 5907 --p_wmw; 5908 if (first) 5909 { 5910 emsg(_(e_not_enough_room)); 5911 first = FALSE; 5912 } 5913 } 5914 } 5915 5916 /* 5917 * Status line of dragwin is dragged "offset" lines down (negative is up). 5918 */ 5919 void 5920 win_drag_status_line(win_T *dragwin, int offset) 5921 { 5922 frame_T *curfr; 5923 frame_T *fr; 5924 int room; 5925 int row; 5926 int up; // if TRUE, drag status line up, otherwise down 5927 int n; 5928 5929 fr = dragwin->w_frame; 5930 curfr = fr; 5931 if (fr != topframe) // more than one window 5932 { 5933 fr = fr->fr_parent; 5934 // When the parent frame is not a column of frames, its parent should 5935 // be. 5936 if (fr->fr_layout != FR_COL) 5937 { 5938 curfr = fr; 5939 if (fr != topframe) // only a row of windows, may drag statusline 5940 fr = fr->fr_parent; 5941 } 5942 } 5943 5944 // If this is the last frame in a column, may want to resize the parent 5945 // frame instead (go two up to skip a row of frames). 5946 while (curfr != topframe && curfr->fr_next == NULL) 5947 { 5948 if (fr != topframe) 5949 fr = fr->fr_parent; 5950 curfr = fr; 5951 if (fr != topframe) 5952 fr = fr->fr_parent; 5953 } 5954 5955 if (offset < 0) // drag up 5956 { 5957 up = TRUE; 5958 offset = -offset; 5959 // sum up the room of the current frame and above it 5960 if (fr == curfr) 5961 { 5962 // only one window 5963 room = fr->fr_height - frame_minheight(fr, NULL); 5964 } 5965 else 5966 { 5967 room = 0; 5968 for (fr = fr->fr_child; ; fr = fr->fr_next) 5969 { 5970 room += fr->fr_height - frame_minheight(fr, NULL); 5971 if (fr == curfr) 5972 break; 5973 } 5974 } 5975 fr = curfr->fr_next; // put fr at frame that grows 5976 } 5977 else // drag down 5978 { 5979 up = FALSE; 5980 /* 5981 * Only dragging the last status line can reduce p_ch. 5982 */ 5983 room = Rows - cmdline_row; 5984 if (curfr->fr_next == NULL) 5985 room -= 1; 5986 else 5987 room -= p_ch; 5988 if (room < 0) 5989 room = 0; 5990 // sum up the room of frames below of the current one 5991 FOR_ALL_FRAMES(fr, curfr->fr_next) 5992 room += fr->fr_height - frame_minheight(fr, NULL); 5993 fr = curfr; // put fr at window that grows 5994 } 5995 5996 if (room < offset) // Not enough room 5997 offset = room; // Move as far as we can 5998 if (offset <= 0) 5999 return; 6000 6001 /* 6002 * Grow frame fr by "offset" lines. 6003 * Doesn't happen when dragging the last status line up. 6004 */ 6005 if (fr != NULL) 6006 frame_new_height(fr, fr->fr_height + offset, up, FALSE); 6007 6008 if (up) 6009 fr = curfr; // current frame gets smaller 6010 else 6011 fr = curfr->fr_next; // next frame gets smaller 6012 6013 /* 6014 * Now make the other frames smaller. 6015 */ 6016 while (fr != NULL && offset > 0) 6017 { 6018 n = frame_minheight(fr, NULL); 6019 if (fr->fr_height - offset <= n) 6020 { 6021 offset -= fr->fr_height - n; 6022 frame_new_height(fr, n, !up, FALSE); 6023 } 6024 else 6025 { 6026 frame_new_height(fr, fr->fr_height - offset, !up, FALSE); 6027 break; 6028 } 6029 if (up) 6030 fr = fr->fr_prev; 6031 else 6032 fr = fr->fr_next; 6033 } 6034 row = win_comp_pos(); 6035 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 6036 cmdline_row = row; 6037 p_ch = Rows - cmdline_row; 6038 if (p_ch < 1) 6039 p_ch = 1; 6040 curtab->tp_ch_used = p_ch; 6041 redraw_all_later(SOME_VALID); 6042 showmode(); 6043 } 6044 6045 /* 6046 * Separator line of dragwin is dragged "offset" lines right (negative is left). 6047 */ 6048 void 6049 win_drag_vsep_line(win_T *dragwin, int offset) 6050 { 6051 frame_T *curfr; 6052 frame_T *fr; 6053 int room; 6054 int left; // if TRUE, drag separator line left, otherwise right 6055 int n; 6056 6057 fr = dragwin->w_frame; 6058 if (fr == topframe) // only one window (cannot happen?) 6059 return; 6060 curfr = fr; 6061 fr = fr->fr_parent; 6062 // When the parent frame is not a row of frames, its parent should be. 6063 if (fr->fr_layout != FR_ROW) 6064 { 6065 if (fr == topframe) // only a column of windows (cannot happen?) 6066 return; 6067 curfr = fr; 6068 fr = fr->fr_parent; 6069 } 6070 6071 // If this is the last frame in a row, may want to resize a parent 6072 // frame instead. 6073 while (curfr->fr_next == NULL) 6074 { 6075 if (fr == topframe) 6076 break; 6077 curfr = fr; 6078 fr = fr->fr_parent; 6079 if (fr != topframe) 6080 { 6081 curfr = fr; 6082 fr = fr->fr_parent; 6083 } 6084 } 6085 6086 if (offset < 0) // drag left 6087 { 6088 left = TRUE; 6089 offset = -offset; 6090 // sum up the room of the current frame and left of it 6091 room = 0; 6092 for (fr = fr->fr_child; ; fr = fr->fr_next) 6093 { 6094 room += fr->fr_width - frame_minwidth(fr, NULL); 6095 if (fr == curfr) 6096 break; 6097 } 6098 fr = curfr->fr_next; // put fr at frame that grows 6099 } 6100 else // drag right 6101 { 6102 left = FALSE; 6103 // sum up the room of frames right of the current one 6104 room = 0; 6105 FOR_ALL_FRAMES(fr, curfr->fr_next) 6106 room += fr->fr_width - frame_minwidth(fr, NULL); 6107 fr = curfr; // put fr at window that grows 6108 } 6109 6110 if (room < offset) // Not enough room 6111 offset = room; // Move as far as we can 6112 if (offset <= 0) // No room at all, quit. 6113 return; 6114 if (fr == NULL) 6115 return; // Safety check, should not happen. 6116 6117 // grow frame fr by offset lines 6118 frame_new_width(fr, fr->fr_width + offset, left, FALSE); 6119 6120 // shrink other frames: current and at the left or at the right 6121 if (left) 6122 fr = curfr; // current frame gets smaller 6123 else 6124 fr = curfr->fr_next; // next frame gets smaller 6125 6126 while (fr != NULL && offset > 0) 6127 { 6128 n = frame_minwidth(fr, NULL); 6129 if (fr->fr_width - offset <= n) 6130 { 6131 offset -= fr->fr_width - n; 6132 frame_new_width(fr, n, !left, FALSE); 6133 } 6134 else 6135 { 6136 frame_new_width(fr, fr->fr_width - offset, !left, FALSE); 6137 break; 6138 } 6139 if (left) 6140 fr = fr->fr_prev; 6141 else 6142 fr = fr->fr_next; 6143 } 6144 (void)win_comp_pos(); 6145 redraw_all_later(NOT_VALID); 6146 } 6147 6148 #define FRACTION_MULT 16384L 6149 6150 /* 6151 * Set wp->w_fraction for the current w_wrow and w_height. 6152 * Has no effect when the window is less than two lines. 6153 */ 6154 void 6155 set_fraction(win_T *wp) 6156 { 6157 if (wp->w_height > 1) 6158 // When cursor is in the first line the percentage is computed as if 6159 // it's halfway that line. Thus with two lines it is 25%, with three 6160 // lines 17%, etc. Similarly for the last line: 75%, 83%, etc. 6161 wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT 6162 + FRACTION_MULT / 2) / (long)wp->w_height; 6163 } 6164 6165 /* 6166 * Set the height of a window. 6167 * "height" excludes any window toolbar. 6168 * This takes care of the things inside the window, not what happens to the 6169 * window position, the frame or to other windows. 6170 */ 6171 void 6172 win_new_height(win_T *wp, int height) 6173 { 6174 int prev_height = wp->w_height; 6175 6176 // Don't want a negative height. Happens when splitting a tiny window. 6177 // Will equalize heights soon to fix it. 6178 if (height < 0) 6179 height = 0; 6180 if (wp->w_height == height) 6181 return; // nothing to do 6182 6183 if (wp->w_height > 0) 6184 { 6185 if (wp == curwin) 6186 // w_wrow needs to be valid. When setting 'laststatus' this may 6187 // call win_new_height() recursively. 6188 validate_cursor(); 6189 if (wp->w_height != prev_height) 6190 return; // Recursive call already changed the size, bail out here 6191 // to avoid the following to mess things up. 6192 if (wp->w_wrow != wp->w_prev_fraction_row) 6193 set_fraction(wp); 6194 } 6195 6196 wp->w_height = height; 6197 wp->w_skipcol = 0; 6198 6199 // There is no point in adjusting the scroll position when exiting. Some 6200 // values might be invalid. 6201 if (!exiting) 6202 scroll_to_fraction(wp, prev_height); 6203 } 6204 6205 void 6206 scroll_to_fraction(win_T *wp, int prev_height) 6207 { 6208 linenr_T lnum; 6209 int sline, line_size; 6210 int height = wp->w_height; 6211 6212 // Don't change w_topline in any of these cases: 6213 // - window height is 0 6214 // - 'scrollbind' is set and this isn't the current window 6215 // - window height is sufficient to display the whole buffer and first line 6216 // is visible. 6217 if (height > 0 6218 && (!wp->w_p_scb || wp == curwin) 6219 && (height < wp->w_buffer->b_ml.ml_line_count || wp->w_topline > 1)) 6220 { 6221 /* 6222 * Find a value for w_topline that shows the cursor at the same 6223 * relative position in the window as before (more or less). 6224 */ 6225 lnum = wp->w_cursor.lnum; 6226 if (lnum < 1) // can happen when starting up 6227 lnum = 1; 6228 wp->w_wrow = ((long)wp->w_fraction * (long)height - 1L) 6229 / FRACTION_MULT; 6230 line_size = plines_win_col(wp, lnum, (long)(wp->w_cursor.col)) - 1; 6231 sline = wp->w_wrow - line_size; 6232 6233 if (sline >= 0) 6234 { 6235 // Make sure the whole cursor line is visible, if possible. 6236 int rows = plines_win(wp, lnum, FALSE); 6237 6238 if (sline > wp->w_height - rows) 6239 { 6240 sline = wp->w_height - rows; 6241 wp->w_wrow -= rows - line_size; 6242 } 6243 } 6244 6245 if (sline < 0) 6246 { 6247 /* 6248 * Cursor line would go off top of screen if w_wrow was this high. 6249 * Make cursor line the first line in the window. If not enough 6250 * room use w_skipcol; 6251 */ 6252 wp->w_wrow = line_size; 6253 if (wp->w_wrow >= wp->w_height 6254 && (wp->w_width - win_col_off(wp)) > 0) 6255 { 6256 wp->w_skipcol += wp->w_width - win_col_off(wp); 6257 --wp->w_wrow; 6258 while (wp->w_wrow >= wp->w_height) 6259 { 6260 wp->w_skipcol += wp->w_width - win_col_off(wp) 6261 + win_col_off2(wp); 6262 --wp->w_wrow; 6263 } 6264 } 6265 } 6266 else if (sline > 0) 6267 { 6268 while (sline > 0 && lnum > 1) 6269 { 6270 #ifdef FEAT_FOLDING 6271 hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); 6272 if (lnum == 1) 6273 { 6274 // first line in buffer is folded 6275 line_size = 1; 6276 --sline; 6277 break; 6278 } 6279 #endif 6280 --lnum; 6281 #ifdef FEAT_DIFF 6282 if (lnum == wp->w_topline) 6283 line_size = plines_win_nofill(wp, lnum, TRUE) 6284 + wp->w_topfill; 6285 else 6286 #endif 6287 line_size = plines_win(wp, lnum, TRUE); 6288 sline -= line_size; 6289 } 6290 6291 if (sline < 0) 6292 { 6293 /* 6294 * Line we want at top would go off top of screen. Use next 6295 * line instead. 6296 */ 6297 #ifdef FEAT_FOLDING 6298 hasFoldingWin(wp, lnum, NULL, &lnum, TRUE, NULL); 6299 #endif 6300 lnum++; 6301 wp->w_wrow -= line_size + sline; 6302 } 6303 else if (sline > 0) 6304 { 6305 // First line of file reached, use that as topline. 6306 lnum = 1; 6307 wp->w_wrow -= sline; 6308 } 6309 } 6310 set_topline(wp, lnum); 6311 } 6312 6313 if (wp == curwin) 6314 { 6315 if (get_scrolloff_value()) 6316 update_topline(); 6317 curs_columns(FALSE); // validate w_wrow 6318 } 6319 if (prev_height > 0) 6320 wp->w_prev_fraction_row = wp->w_wrow; 6321 6322 win_comp_scroll(wp); 6323 redraw_win_later(wp, SOME_VALID); 6324 wp->w_redr_status = TRUE; 6325 invalidate_botline_win(wp); 6326 } 6327 6328 /* 6329 * Set the width of a window. 6330 */ 6331 void 6332 win_new_width(win_T *wp, int width) 6333 { 6334 wp->w_width = width; 6335 wp->w_lines_valid = 0; 6336 changed_line_abv_curs_win(wp); 6337 invalidate_botline_win(wp); 6338 if (wp == curwin) 6339 { 6340 update_topline(); 6341 curs_columns(TRUE); // validate w_wrow 6342 } 6343 redraw_win_later(wp, NOT_VALID); 6344 wp->w_redr_status = TRUE; 6345 } 6346 6347 void 6348 win_comp_scroll(win_T *wp) 6349 { 6350 #if defined(FEAT_EVAL) 6351 int old_w_p_scr = wp->w_p_scr; 6352 #endif 6353 6354 wp->w_p_scr = ((unsigned)wp->w_height >> 1); 6355 if (wp->w_p_scr == 0) 6356 wp->w_p_scr = 1; 6357 #if defined(FEAT_EVAL) 6358 if (wp->w_p_scr != old_w_p_scr) 6359 { 6360 // Used by "verbose set scroll". 6361 wp->w_p_script_ctx[WV_SCROLL].sc_sid = SID_WINLAYOUT; 6362 wp->w_p_script_ctx[WV_SCROLL].sc_lnum = 0; 6363 } 6364 #endif 6365 } 6366 6367 /* 6368 * command_height: called whenever p_ch has been changed 6369 */ 6370 void 6371 command_height(void) 6372 { 6373 int h; 6374 frame_T *frp; 6375 int old_p_ch = curtab->tp_ch_used; 6376 6377 // Use the value of p_ch that we remembered. This is needed for when the 6378 // GUI starts up, we can't be sure in what order things happen. And when 6379 // p_ch was changed in another tab page. 6380 curtab->tp_ch_used = p_ch; 6381 6382 // Find bottom frame with width of screen. 6383 frp = lastwin->w_frame; 6384 while (frp->fr_width != Columns && frp->fr_parent != NULL) 6385 frp = frp->fr_parent; 6386 6387 // Avoid changing the height of a window with 'winfixheight' set. 6388 while (frp->fr_prev != NULL && frp->fr_layout == FR_LEAF 6389 && frp->fr_win->w_p_wfh) 6390 frp = frp->fr_prev; 6391 6392 if (starting != NO_SCREEN) 6393 { 6394 cmdline_row = Rows - p_ch; 6395 6396 if (p_ch > old_p_ch) // p_ch got bigger 6397 { 6398 while (p_ch > old_p_ch) 6399 { 6400 if (frp == NULL) 6401 { 6402 emsg(_(e_not_enough_room)); 6403 p_ch = old_p_ch; 6404 curtab->tp_ch_used = p_ch; 6405 cmdline_row = Rows - p_ch; 6406 break; 6407 } 6408 h = frp->fr_height - frame_minheight(frp, NULL); 6409 if (h > p_ch - old_p_ch) 6410 h = p_ch - old_p_ch; 6411 old_p_ch += h; 6412 frame_add_height(frp, -h); 6413 frp = frp->fr_prev; 6414 } 6415 6416 // Recompute window positions. 6417 (void)win_comp_pos(); 6418 6419 // clear the lines added to cmdline 6420 if (full_screen) 6421 screen_fill((int)(cmdline_row), (int)Rows, 0, 6422 (int)Columns, ' ', ' ', 0); 6423 msg_row = cmdline_row; 6424 redraw_cmdline = TRUE; 6425 return; 6426 } 6427 6428 if (msg_row < cmdline_row) 6429 msg_row = cmdline_row; 6430 redraw_cmdline = TRUE; 6431 } 6432 frame_add_height(frp, (int)(old_p_ch - p_ch)); 6433 6434 // Recompute window positions. 6435 if (frp != lastwin->w_frame) 6436 (void)win_comp_pos(); 6437 } 6438 6439 /* 6440 * Resize frame "frp" to be "n" lines higher (negative for less high). 6441 * Also resize the frames it is contained in. 6442 */ 6443 static void 6444 frame_add_height(frame_T *frp, int n) 6445 { 6446 frame_new_height(frp, frp->fr_height + n, FALSE, FALSE); 6447 for (;;) 6448 { 6449 frp = frp->fr_parent; 6450 if (frp == NULL) 6451 break; 6452 frp->fr_height += n; 6453 } 6454 } 6455 6456 /* 6457 * Add or remove a status line for the bottom window(s), according to the 6458 * value of 'laststatus'. 6459 */ 6460 void 6461 last_status( 6462 int morewin) // pretend there are two or more windows 6463 { 6464 // Don't make a difference between horizontal or vertical split. 6465 last_status_rec(topframe, (p_ls == 2 6466 || (p_ls == 1 && (morewin || !ONE_WINDOW)))); 6467 } 6468 6469 static void 6470 last_status_rec(frame_T *fr, int statusline) 6471 { 6472 frame_T *fp; 6473 win_T *wp; 6474 6475 if (fr->fr_layout == FR_LEAF) 6476 { 6477 wp = fr->fr_win; 6478 if (wp->w_status_height != 0 && !statusline) 6479 { 6480 // remove status line 6481 win_new_height(wp, wp->w_height + 1); 6482 wp->w_status_height = 0; 6483 comp_col(); 6484 } 6485 else if (wp->w_status_height == 0 && statusline) 6486 { 6487 // Find a frame to take a line from. 6488 fp = fr; 6489 while (fp->fr_height <= frame_minheight(fp, NULL)) 6490 { 6491 if (fp == topframe) 6492 { 6493 emsg(_(e_not_enough_room)); 6494 return; 6495 } 6496 // In a column of frames: go to frame above. If already at 6497 // the top or in a row of frames: go to parent. 6498 if (fp->fr_parent->fr_layout == FR_COL && fp->fr_prev != NULL) 6499 fp = fp->fr_prev; 6500 else 6501 fp = fp->fr_parent; 6502 } 6503 wp->w_status_height = 1; 6504 if (fp != fr) 6505 { 6506 frame_new_height(fp, fp->fr_height - 1, FALSE, FALSE); 6507 frame_fix_height(wp); 6508 (void)win_comp_pos(); 6509 } 6510 else 6511 win_new_height(wp, wp->w_height - 1); 6512 comp_col(); 6513 redraw_all_later(SOME_VALID); 6514 } 6515 } 6516 else if (fr->fr_layout == FR_ROW) 6517 { 6518 // vertically split windows, set status line for each one 6519 FOR_ALL_FRAMES(fp, fr->fr_child) 6520 last_status_rec(fp, statusline); 6521 } 6522 else 6523 { 6524 // horizontally split window, set status line for last one 6525 for (fp = fr->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 6526 ; 6527 last_status_rec(fp, statusline); 6528 } 6529 } 6530 6531 /* 6532 * Return the number of lines used by the tab page line. 6533 */ 6534 int 6535 tabline_height(void) 6536 { 6537 #ifdef FEAT_GUI_TABLINE 6538 // When the GUI has the tabline then this always returns zero. 6539 if (gui_use_tabline()) 6540 return 0; 6541 #endif 6542 switch (p_stal) 6543 { 6544 case 0: return 0; 6545 case 1: return (first_tabpage->tp_next == NULL) ? 0 : 1; 6546 } 6547 return 1; 6548 } 6549 6550 /* 6551 * Return the minimal number of rows that is needed on the screen to display 6552 * the current number of windows. 6553 */ 6554 int 6555 min_rows(void) 6556 { 6557 int total; 6558 tabpage_T *tp; 6559 int n; 6560 6561 if (firstwin == NULL) // not initialized yet 6562 return MIN_LINES; 6563 6564 total = 0; 6565 FOR_ALL_TABPAGES(tp) 6566 { 6567 n = frame_minheight(tp->tp_topframe, NULL); 6568 if (total < n) 6569 total = n; 6570 } 6571 total += tabline_height(); 6572 total += 1; // count the room for the command line 6573 return total; 6574 } 6575 6576 /* 6577 * Return TRUE if there is only one window and only one tab page, not 6578 * counting a help or preview window, unless it is the current window. 6579 * Does not count unlisted windows. 6580 */ 6581 int 6582 only_one_window(void) 6583 { 6584 int count = 0; 6585 win_T *wp; 6586 6587 #if defined(FEAT_PROP_POPUP) 6588 // If the current window is a popup then there always is another window. 6589 if (popup_is_popup(curwin)) 6590 return FALSE; 6591 #endif 6592 6593 // If there is another tab page there always is another window. 6594 if (first_tabpage->tp_next != NULL) 6595 return FALSE; 6596 6597 FOR_ALL_WINDOWS(wp) 6598 if (wp->w_buffer != NULL 6599 && (!((bt_help(wp->w_buffer) && !bt_help(curbuf)) 6600 # ifdef FEAT_QUICKFIX 6601 || wp->w_p_pvw 6602 # endif 6603 ) || wp == curwin) && wp != aucmd_win) 6604 ++count; 6605 return (count <= 1); 6606 } 6607 6608 /* 6609 * Correct the cursor line number in other windows. Used after changing the 6610 * current buffer, and before applying autocommands. 6611 * When "do_curwin" is TRUE, also check current window. 6612 */ 6613 void 6614 check_lnums(int do_curwin) 6615 { 6616 win_T *wp; 6617 tabpage_T *tp; 6618 6619 FOR_ALL_TAB_WINDOWS(tp, wp) 6620 if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) 6621 { 6622 // save the original cursor position and topline 6623 wp->w_save_cursor.w_cursor_save = wp->w_cursor; 6624 wp->w_save_cursor.w_topline_save = wp->w_topline; 6625 6626 if (wp->w_cursor.lnum > curbuf->b_ml.ml_line_count) 6627 wp->w_cursor.lnum = curbuf->b_ml.ml_line_count; 6628 if (wp->w_topline > curbuf->b_ml.ml_line_count) 6629 wp->w_topline = curbuf->b_ml.ml_line_count; 6630 6631 // save the corrected cursor position and topline 6632 wp->w_save_cursor.w_cursor_corr = wp->w_cursor; 6633 wp->w_save_cursor.w_topline_corr = wp->w_topline; 6634 } 6635 } 6636 6637 /* 6638 * Reset cursor and topline to its stored values from check_lnums(). 6639 * check_lnums() must have been called first! 6640 */ 6641 void 6642 reset_lnums() 6643 { 6644 win_T *wp; 6645 tabpage_T *tp; 6646 6647 FOR_ALL_TAB_WINDOWS(tp, wp) 6648 if (wp->w_buffer == curbuf) 6649 { 6650 // Restore the value if the autocommand didn't change it. 6651 if (EQUAL_POS(wp->w_save_cursor.w_cursor_corr, wp->w_cursor)) 6652 wp->w_cursor = wp->w_save_cursor.w_cursor_save; 6653 if (wp->w_save_cursor.w_topline_corr == wp->w_topline) 6654 wp->w_topline = wp->w_save_cursor.w_topline_save; 6655 } 6656 } 6657 6658 /* 6659 * A snapshot of the window sizes, to restore them after closing the help 6660 * window. 6661 * Only these fields are used: 6662 * fr_layout 6663 * fr_width 6664 * fr_height 6665 * fr_next 6666 * fr_child 6667 * fr_win (only valid for the old curwin, NULL otherwise) 6668 */ 6669 6670 /* 6671 * Create a snapshot of the current frame sizes. 6672 */ 6673 void 6674 make_snapshot(int idx) 6675 { 6676 clear_snapshot(curtab, idx); 6677 make_snapshot_rec(topframe, &curtab->tp_snapshot[idx]); 6678 } 6679 6680 static void 6681 make_snapshot_rec(frame_T *fr, frame_T **frp) 6682 { 6683 *frp = ALLOC_CLEAR_ONE(frame_T); 6684 if (*frp == NULL) 6685 return; 6686 (*frp)->fr_layout = fr->fr_layout; 6687 (*frp)->fr_width = fr->fr_width; 6688 (*frp)->fr_height = fr->fr_height; 6689 if (fr->fr_next != NULL) 6690 make_snapshot_rec(fr->fr_next, &((*frp)->fr_next)); 6691 if (fr->fr_child != NULL) 6692 make_snapshot_rec(fr->fr_child, &((*frp)->fr_child)); 6693 if (fr->fr_layout == FR_LEAF && fr->fr_win == curwin) 6694 (*frp)->fr_win = curwin; 6695 } 6696 6697 /* 6698 * Remove any existing snapshot. 6699 */ 6700 static void 6701 clear_snapshot(tabpage_T *tp, int idx) 6702 { 6703 clear_snapshot_rec(tp->tp_snapshot[idx]); 6704 tp->tp_snapshot[idx] = NULL; 6705 } 6706 6707 static void 6708 clear_snapshot_rec(frame_T *fr) 6709 { 6710 if (fr != NULL) 6711 { 6712 clear_snapshot_rec(fr->fr_next); 6713 clear_snapshot_rec(fr->fr_child); 6714 vim_free(fr); 6715 } 6716 } 6717 6718 /* 6719 * Restore a previously created snapshot, if there is any. 6720 * This is only done if the screen size didn't change and the window layout is 6721 * still the same. 6722 */ 6723 void 6724 restore_snapshot( 6725 int idx, 6726 int close_curwin) // closing current window 6727 { 6728 win_T *wp; 6729 6730 if (curtab->tp_snapshot[idx] != NULL 6731 && curtab->tp_snapshot[idx]->fr_width == topframe->fr_width 6732 && curtab->tp_snapshot[idx]->fr_height == topframe->fr_height 6733 && check_snapshot_rec(curtab->tp_snapshot[idx], topframe) == OK) 6734 { 6735 wp = restore_snapshot_rec(curtab->tp_snapshot[idx], topframe); 6736 win_comp_pos(); 6737 if (wp != NULL && close_curwin) 6738 win_goto(wp); 6739 redraw_all_later(NOT_VALID); 6740 } 6741 clear_snapshot(curtab, idx); 6742 } 6743 6744 /* 6745 * Check if frames "sn" and "fr" have the same layout, same following frames 6746 * and same children. And the window pointer is valid. 6747 */ 6748 static int 6749 check_snapshot_rec(frame_T *sn, frame_T *fr) 6750 { 6751 if (sn->fr_layout != fr->fr_layout 6752 || (sn->fr_next == NULL) != (fr->fr_next == NULL) 6753 || (sn->fr_child == NULL) != (fr->fr_child == NULL) 6754 || (sn->fr_next != NULL 6755 && check_snapshot_rec(sn->fr_next, fr->fr_next) == FAIL) 6756 || (sn->fr_child != NULL 6757 && check_snapshot_rec(sn->fr_child, fr->fr_child) == FAIL) 6758 || (sn->fr_win != NULL && !win_valid(sn->fr_win))) 6759 return FAIL; 6760 return OK; 6761 } 6762 6763 /* 6764 * Copy the size of snapshot frame "sn" to frame "fr". Do the same for all 6765 * following frames and children. 6766 * Returns a pointer to the old current window, or NULL. 6767 */ 6768 static win_T * 6769 restore_snapshot_rec(frame_T *sn, frame_T *fr) 6770 { 6771 win_T *wp = NULL; 6772 win_T *wp2; 6773 6774 fr->fr_height = sn->fr_height; 6775 fr->fr_width = sn->fr_width; 6776 if (fr->fr_layout == FR_LEAF) 6777 { 6778 frame_new_height(fr, fr->fr_height, FALSE, FALSE); 6779 frame_new_width(fr, fr->fr_width, FALSE, FALSE); 6780 wp = sn->fr_win; 6781 } 6782 if (sn->fr_next != NULL) 6783 { 6784 wp2 = restore_snapshot_rec(sn->fr_next, fr->fr_next); 6785 if (wp2 != NULL) 6786 wp = wp2; 6787 } 6788 if (sn->fr_child != NULL) 6789 { 6790 wp2 = restore_snapshot_rec(sn->fr_child, fr->fr_child); 6791 if (wp2 != NULL) 6792 wp = wp2; 6793 } 6794 return wp; 6795 } 6796 6797 #if defined(FEAT_GUI) || defined(PROTO) 6798 /* 6799 * Return TRUE if there is any vertically split window. 6800 */ 6801 int 6802 win_hasvertsplit(void) 6803 { 6804 frame_T *fr; 6805 6806 if (topframe->fr_layout == FR_ROW) 6807 return TRUE; 6808 6809 if (topframe->fr_layout == FR_COL) 6810 FOR_ALL_FRAMES(fr, topframe->fr_child) 6811 if (fr->fr_layout == FR_ROW) 6812 return TRUE; 6813 6814 return FALSE; 6815 } 6816 #endif 6817 6818 #if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO) 6819 int 6820 get_win_number(win_T *wp, win_T *first_win) 6821 { 6822 int i = 1; 6823 win_T *w; 6824 6825 for (w = first_win; w != NULL && w != wp; w = W_NEXT(w)) 6826 ++i; 6827 6828 if (w == NULL) 6829 return 0; 6830 else 6831 return i; 6832 } 6833 6834 int 6835 get_tab_number(tabpage_T *tp UNUSED) 6836 { 6837 int i = 1; 6838 tabpage_T *t; 6839 6840 for (t = first_tabpage; t != NULL && t != tp; t = t->tp_next) 6841 ++i; 6842 6843 if (t == NULL) 6844 return 0; 6845 else 6846 return i; 6847 } 6848 #endif 6849 6850 /* 6851 * Return TRUE if "topfrp" and its children are at the right height. 6852 */ 6853 static int 6854 frame_check_height(frame_T *topfrp, int height) 6855 { 6856 frame_T *frp; 6857 6858 if (topfrp->fr_height != height) 6859 return FALSE; 6860 6861 if (topfrp->fr_layout == FR_ROW) 6862 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6863 if (frp->fr_height != height) 6864 return FALSE; 6865 6866 return TRUE; 6867 } 6868 6869 /* 6870 * Return TRUE if "topfrp" and its children are at the right width. 6871 */ 6872 static int 6873 frame_check_width(frame_T *topfrp, int width) 6874 { 6875 frame_T *frp; 6876 6877 if (topfrp->fr_width != width) 6878 return FALSE; 6879 6880 if (topfrp->fr_layout == FR_COL) 6881 FOR_ALL_FRAMES(frp, topfrp->fr_child) 6882 if (frp->fr_width != width) 6883 return FALSE; 6884 6885 return TRUE; 6886 } 6887 6888 #if defined(FEAT_SYN_HL) || defined(PROTO) 6889 /* 6890 * Simple int comparison function for use with qsort() 6891 */ 6892 static int 6893 int_cmp(const void *a, const void *b) 6894 { 6895 return *(const int *)a - *(const int *)b; 6896 } 6897 6898 /* 6899 * Handle setting 'colorcolumn' or 'textwidth' in window "wp". 6900 * Returns error message, NULL if it's OK. 6901 */ 6902 char * 6903 check_colorcolumn(win_T *wp) 6904 { 6905 char_u *s; 6906 int col; 6907 int count = 0; 6908 int color_cols[256]; 6909 int i; 6910 int j = 0; 6911 6912 if (wp->w_buffer == NULL) 6913 return NULL; // buffer was closed 6914 6915 for (s = wp->w_p_cc; *s != NUL && count < 255;) 6916 { 6917 if (*s == '-' || *s == '+') 6918 { 6919 // -N and +N: add to 'textwidth' 6920 col = (*s == '-') ? -1 : 1; 6921 ++s; 6922 if (!VIM_ISDIGIT(*s)) 6923 return e_invarg; 6924 col = col * getdigits(&s); 6925 if (wp->w_buffer->b_p_tw == 0) 6926 goto skip; // 'textwidth' not set, skip this item 6927 col += wp->w_buffer->b_p_tw; 6928 if (col < 0) 6929 goto skip; 6930 } 6931 else if (VIM_ISDIGIT(*s)) 6932 col = getdigits(&s); 6933 else 6934 return e_invarg; 6935 color_cols[count++] = col - 1; // 1-based to 0-based 6936 skip: 6937 if (*s == NUL) 6938 break; 6939 if (*s != ',') 6940 return e_invarg; 6941 if (*++s == NUL) 6942 return e_invarg; // illegal trailing comma as in "set cc=80," 6943 } 6944 6945 vim_free(wp->w_p_cc_cols); 6946 if (count == 0) 6947 wp->w_p_cc_cols = NULL; 6948 else 6949 { 6950 wp->w_p_cc_cols = ALLOC_MULT(int, count + 1); 6951 if (wp->w_p_cc_cols != NULL) 6952 { 6953 // sort the columns for faster usage on screen redraw inside 6954 // win_line() 6955 qsort(color_cols, count, sizeof(int), int_cmp); 6956 6957 for (i = 0; i < count; ++i) 6958 // skip duplicates 6959 if (j == 0 || wp->w_p_cc_cols[j - 1] != color_cols[i]) 6960 wp->w_p_cc_cols[j++] = color_cols[i]; 6961 wp->w_p_cc_cols[j] = -1; // end marker 6962 } 6963 } 6964 6965 return NULL; // no error 6966 } 6967 #endif 6968