1 /* vi:set ts=8 sts=4 sw=4: 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 int path_is_url __ARGS((char_u *p)); 13 #if defined(FEAT_WINDOWS) || defined(PROTO) 14 static void cmd_with_count __ARGS((char *cmd, char_u *bufp, size_t bufsize, long Prenum)); 15 static void win_init __ARGS((win_T *newp, win_T *oldp, int flags)); 16 static void win_init_some __ARGS((win_T *newp, win_T *oldp)); 17 static void frame_comp_pos __ARGS((frame_T *topfrp, int *row, int *col)); 18 static void frame_setheight __ARGS((frame_T *curfrp, int height)); 19 #ifdef FEAT_VERTSPLIT 20 static void frame_setwidth __ARGS((frame_T *curfrp, int width)); 21 #endif 22 static void win_exchange __ARGS((long)); 23 static void win_rotate __ARGS((int, int)); 24 static void win_totop __ARGS((int size, int flags)); 25 static void win_equal_rec __ARGS((win_T *next_curwin, int current, frame_T *topfr, int dir, int col, int row, int width, int height)); 26 static int last_window __ARGS((void)); 27 static int close_last_window_tabpage __ARGS((win_T *win, int free_buf, tabpage_T *prev_curtab)); 28 static win_T *win_free_mem __ARGS((win_T *win, int *dirp, tabpage_T *tp)); 29 static frame_T *win_altframe __ARGS((win_T *win, tabpage_T *tp)); 30 static tabpage_T *alt_tabpage __ARGS((void)); 31 static win_T *frame2win __ARGS((frame_T *frp)); 32 static int frame_has_win __ARGS((frame_T *frp, win_T *wp)); 33 static void frame_new_height __ARGS((frame_T *topfrp, int height, int topfirst, int wfh)); 34 static int frame_fixed_height __ARGS((frame_T *frp)); 35 #ifdef FEAT_VERTSPLIT 36 static int frame_fixed_width __ARGS((frame_T *frp)); 37 static void frame_add_statusline __ARGS((frame_T *frp)); 38 static void frame_new_width __ARGS((frame_T *topfrp, int width, int leftfirst, int wfw)); 39 static void frame_add_vsep __ARGS((frame_T *frp)); 40 static int frame_minwidth __ARGS((frame_T *topfrp, win_T *next_curwin)); 41 static void frame_fix_width __ARGS((win_T *wp)); 42 #endif 43 #endif 44 static int win_alloc_firstwin __ARGS((win_T *oldwin)); 45 static void new_frame __ARGS((win_T *wp)); 46 #if defined(FEAT_WINDOWS) || defined(PROTO) 47 static tabpage_T *alloc_tabpage __ARGS((void)); 48 static int leave_tabpage __ARGS((buf_T *new_curbuf, int trigger_leave_autocmds)); 49 static void enter_tabpage __ARGS((tabpage_T *tp, buf_T *old_curbuf, int trigger_enter_autocmds, int trigger_leave_autocmds)); 50 static void frame_fix_height __ARGS((win_T *wp)); 51 static int frame_minheight __ARGS((frame_T *topfrp, win_T *next_curwin)); 52 static void win_enter_ext __ARGS((win_T *wp, int undo_sync, int no_curwin, int trigger_enter_autocmds, int trigger_leave_autocmds)); 53 static void win_free __ARGS((win_T *wp, tabpage_T *tp)); 54 static void frame_append __ARGS((frame_T *after, frame_T *frp)); 55 static void frame_insert __ARGS((frame_T *before, frame_T *frp)); 56 static void frame_remove __ARGS((frame_T *frp)); 57 # ifdef FEAT_VERTSPLIT 58 static void win_goto_ver __ARGS((int up, long count)); 59 static void win_goto_hor __ARGS((int left, long count)); 60 # endif 61 static void frame_add_height __ARGS((frame_T *frp, int n)); 62 static void last_status_rec __ARGS((frame_T *fr, int statusline)); 63 64 static void make_snapshot_rec __ARGS((frame_T *fr, frame_T **frp)); 65 static void clear_snapshot __ARGS((tabpage_T *tp, int idx)); 66 static void clear_snapshot_rec __ARGS((frame_T *fr)); 67 static int check_snapshot_rec __ARGS((frame_T *sn, frame_T *fr)); 68 static win_T *restore_snapshot_rec __ARGS((frame_T *sn, frame_T *fr)); 69 70 static int frame_check_height __ARGS((frame_T *topfrp, int height)); 71 #ifdef FEAT_VERTSPLIT 72 static int frame_check_width __ARGS((frame_T *topfrp, int width)); 73 #endif 74 75 #endif /* FEAT_WINDOWS */ 76 77 static win_T *win_alloc __ARGS((win_T *after, int hidden)); 78 static void set_fraction __ARGS((win_T *wp)); 79 80 #define URL_SLASH 1 /* path_is_url() has found "://" */ 81 #define URL_BACKSLASH 2 /* path_is_url() has found ":\\" */ 82 83 #define NOWIN (win_T *)-1 /* non-existing window */ 84 85 #ifdef FEAT_WINDOWS 86 # define ROWS_AVAIL (Rows - p_ch - tabline_height()) 87 #else 88 # define ROWS_AVAIL (Rows - p_ch) 89 #endif 90 91 #if defined(FEAT_WINDOWS) || defined(PROTO) 92 93 static char *m_onlyone = N_("Already only one window"); 94 95 /* 96 * all CTRL-W window commands are handled here, called from normal_cmd(). 97 */ 98 void 99 do_window(nchar, Prenum, xchar) 100 int nchar; 101 long Prenum; 102 int xchar; /* extra char from ":wincmd gx" or NUL */ 103 { 104 long Prenum1; 105 win_T *wp; 106 #if defined(FEAT_SEARCHPATH) || defined(FEAT_FIND_ID) 107 char_u *ptr; 108 linenr_T lnum = -1; 109 #endif 110 #ifdef FEAT_FIND_ID 111 int type = FIND_DEFINE; 112 int len; 113 #endif 114 char_u cbuf[40]; 115 116 if (Prenum == 0) 117 Prenum1 = 1; 118 else 119 Prenum1 = Prenum; 120 121 #ifdef FEAT_CMDWIN 122 # define CHECK_CMDWIN if (cmdwin_type != 0) { EMSG(_(e_cmdwin)); break; } 123 #else 124 # define CHECK_CMDWIN 125 #endif 126 127 switch (nchar) 128 { 129 /* split current window in two parts, horizontally */ 130 case 'S': 131 case Ctrl_S: 132 case 's': 133 CHECK_CMDWIN 134 reset_VIsual_and_resel(); /* stop Visual mode */ 135 #ifdef FEAT_QUICKFIX 136 /* When splitting the quickfix window open a new buffer in it, 137 * don't replicate the quickfix buffer. */ 138 if (bt_quickfix(curbuf)) 139 goto newwindow; 140 #endif 141 #ifdef FEAT_GUI 142 need_mouse_correct = TRUE; 143 #endif 144 (void)win_split((int)Prenum, 0); 145 break; 146 147 #ifdef FEAT_VERTSPLIT 148 /* split current window in two parts, vertically */ 149 case Ctrl_V: 150 case 'v': 151 CHECK_CMDWIN 152 reset_VIsual_and_resel(); /* stop Visual mode */ 153 # ifdef FEAT_QUICKFIX 154 /* When splitting the quickfix window open a new buffer in it, 155 * don't replicate the quickfix buffer. */ 156 if (bt_quickfix(curbuf)) 157 goto newwindow; 158 # endif 159 # ifdef FEAT_GUI 160 need_mouse_correct = TRUE; 161 # endif 162 (void)win_split((int)Prenum, WSP_VERT); 163 break; 164 #endif 165 166 /* split current window and edit alternate file */ 167 case Ctrl_HAT: 168 case '^': 169 CHECK_CMDWIN 170 reset_VIsual_and_resel(); /* stop Visual mode */ 171 cmd_with_count("split #", cbuf, sizeof(cbuf), Prenum); 172 do_cmdline_cmd(cbuf); 173 break; 174 175 /* open new window */ 176 case Ctrl_N: 177 case 'n': 178 CHECK_CMDWIN 179 reset_VIsual_and_resel(); /* stop Visual mode */ 180 #ifdef FEAT_QUICKFIX 181 newwindow: 182 #endif 183 if (Prenum) 184 /* window height */ 185 vim_snprintf((char *)cbuf, sizeof(cbuf) - 5, "%ld", Prenum); 186 else 187 cbuf[0] = NUL; 188 #if defined(FEAT_VERTSPLIT) && defined(FEAT_QUICKFIX) 189 if (nchar == 'v' || nchar == Ctrl_V) 190 STRCAT(cbuf, "v"); 191 #endif 192 STRCAT(cbuf, "new"); 193 do_cmdline_cmd(cbuf); 194 break; 195 196 /* quit current window */ 197 case Ctrl_Q: 198 case 'q': 199 reset_VIsual_and_resel(); /* stop Visual mode */ 200 cmd_with_count("quit", cbuf, sizeof(cbuf), Prenum); 201 do_cmdline_cmd(cbuf); 202 break; 203 204 /* close current window */ 205 case Ctrl_C: 206 case 'c': 207 reset_VIsual_and_resel(); /* stop Visual mode */ 208 cmd_with_count("close", cbuf, sizeof(cbuf), Prenum); 209 do_cmdline_cmd(cbuf); 210 break; 211 212 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX) 213 /* close preview window */ 214 case Ctrl_Z: 215 case 'z': 216 CHECK_CMDWIN 217 reset_VIsual_and_resel(); /* stop Visual mode */ 218 do_cmdline_cmd((char_u *)"pclose"); 219 break; 220 221 /* cursor to preview window */ 222 case 'P': 223 for (wp = firstwin; wp != NULL; wp = wp->w_next) 224 if (wp->w_p_pvw) 225 break; 226 if (wp == NULL) 227 EMSG(_("E441: There is no preview window")); 228 else 229 win_goto(wp); 230 break; 231 #endif 232 233 /* close all but current window */ 234 case Ctrl_O: 235 case 'o': 236 CHECK_CMDWIN 237 reset_VIsual_and_resel(); /* stop Visual mode */ 238 cmd_with_count("only", cbuf, sizeof(cbuf), Prenum); 239 do_cmdline_cmd(cbuf); 240 break; 241 242 /* cursor to next window with wrap around */ 243 case Ctrl_W: 244 case 'w': 245 /* cursor to previous window with wrap around */ 246 case 'W': 247 CHECK_CMDWIN 248 if (firstwin == lastwin && Prenum != 1) /* just one window */ 249 beep_flush(); 250 else 251 { 252 if (Prenum) /* go to specified window */ 253 { 254 for (wp = firstwin; --Prenum > 0; ) 255 { 256 if (wp->w_next == NULL) 257 break; 258 else 259 wp = wp->w_next; 260 } 261 } 262 else 263 { 264 if (nchar == 'W') /* go to previous window */ 265 { 266 wp = curwin->w_prev; 267 if (wp == NULL) 268 wp = lastwin; /* wrap around */ 269 } 270 else /* go to next window */ 271 { 272 wp = curwin->w_next; 273 if (wp == NULL) 274 wp = firstwin; /* wrap around */ 275 } 276 } 277 win_goto(wp); 278 } 279 break; 280 281 /* cursor to window below */ 282 case 'j': 283 case K_DOWN: 284 case Ctrl_J: 285 CHECK_CMDWIN 286 #ifdef FEAT_VERTSPLIT 287 win_goto_ver(FALSE, Prenum1); 288 #else 289 for (wp = curwin; wp->w_next != NULL && Prenum1-- > 0; 290 wp = wp->w_next) 291 ; 292 win_goto(wp); 293 #endif 294 break; 295 296 /* cursor to window above */ 297 case 'k': 298 case K_UP: 299 case Ctrl_K: 300 CHECK_CMDWIN 301 #ifdef FEAT_VERTSPLIT 302 win_goto_ver(TRUE, Prenum1); 303 #else 304 for (wp = curwin; wp->w_prev != NULL && Prenum1-- > 0; 305 wp = wp->w_prev) 306 ; 307 win_goto(wp); 308 #endif 309 break; 310 311 #ifdef FEAT_VERTSPLIT 312 /* cursor to left window */ 313 case 'h': 314 case K_LEFT: 315 case Ctrl_H: 316 case K_BS: 317 CHECK_CMDWIN 318 win_goto_hor(TRUE, Prenum1); 319 break; 320 321 /* cursor to right window */ 322 case 'l': 323 case K_RIGHT: 324 case Ctrl_L: 325 CHECK_CMDWIN 326 win_goto_hor(FALSE, Prenum1); 327 break; 328 #endif 329 330 /* move window to new tab page */ 331 case 'T': 332 if (one_window()) 333 MSG(_(m_onlyone)); 334 else 335 { 336 tabpage_T *oldtab = curtab; 337 tabpage_T *newtab; 338 339 /* First create a new tab with the window, then go back to 340 * the old tab and close the window there. */ 341 wp = curwin; 342 if (win_new_tabpage((int)Prenum) == OK 343 && valid_tabpage(oldtab)) 344 { 345 newtab = curtab; 346 goto_tabpage_tp(oldtab, TRUE, TRUE); 347 if (curwin == wp) 348 win_close(curwin, FALSE); 349 if (valid_tabpage(newtab)) 350 goto_tabpage_tp(newtab, TRUE, TRUE); 351 } 352 } 353 break; 354 355 /* cursor to top-left window */ 356 case 't': 357 case Ctrl_T: 358 win_goto(firstwin); 359 break; 360 361 /* cursor to bottom-right window */ 362 case 'b': 363 case Ctrl_B: 364 win_goto(lastwin); 365 break; 366 367 /* cursor to last accessed (previous) window */ 368 case 'p': 369 case Ctrl_P: 370 if (prevwin == NULL) 371 beep_flush(); 372 else 373 win_goto(prevwin); 374 break; 375 376 /* exchange current and next window */ 377 case 'x': 378 case Ctrl_X: 379 CHECK_CMDWIN 380 win_exchange(Prenum); 381 break; 382 383 /* rotate windows downwards */ 384 case Ctrl_R: 385 case 'r': 386 CHECK_CMDWIN 387 reset_VIsual_and_resel(); /* stop Visual mode */ 388 win_rotate(FALSE, (int)Prenum1); /* downwards */ 389 break; 390 391 /* rotate windows upwards */ 392 case 'R': 393 CHECK_CMDWIN 394 reset_VIsual_and_resel(); /* stop Visual mode */ 395 win_rotate(TRUE, (int)Prenum1); /* upwards */ 396 break; 397 398 /* move window to the very top/bottom/left/right */ 399 case 'K': 400 case 'J': 401 #ifdef FEAT_VERTSPLIT 402 case 'H': 403 case 'L': 404 #endif 405 CHECK_CMDWIN 406 win_totop((int)Prenum, 407 ((nchar == 'H' || nchar == 'L') ? WSP_VERT : 0) 408 | ((nchar == 'H' || nchar == 'K') ? WSP_TOP : WSP_BOT)); 409 break; 410 411 /* make all windows the same height */ 412 case '=': 413 #ifdef FEAT_GUI 414 need_mouse_correct = TRUE; 415 #endif 416 win_equal(NULL, FALSE, 'b'); 417 break; 418 419 /* increase current window height */ 420 case '+': 421 #ifdef FEAT_GUI 422 need_mouse_correct = TRUE; 423 #endif 424 win_setheight(curwin->w_height + (int)Prenum1); 425 break; 426 427 /* decrease current window height */ 428 case '-': 429 #ifdef FEAT_GUI 430 need_mouse_correct = TRUE; 431 #endif 432 win_setheight(curwin->w_height - (int)Prenum1); 433 break; 434 435 /* set current window height */ 436 case Ctrl__: 437 case '_': 438 #ifdef FEAT_GUI 439 need_mouse_correct = TRUE; 440 #endif 441 win_setheight(Prenum ? (int)Prenum : 9999); 442 break; 443 444 #ifdef FEAT_VERTSPLIT 445 /* increase current window width */ 446 case '>': 447 #ifdef FEAT_GUI 448 need_mouse_correct = TRUE; 449 #endif 450 win_setwidth(curwin->w_width + (int)Prenum1); 451 break; 452 453 /* decrease current window width */ 454 case '<': 455 #ifdef FEAT_GUI 456 need_mouse_correct = TRUE; 457 #endif 458 win_setwidth(curwin->w_width - (int)Prenum1); 459 break; 460 461 /* set current window width */ 462 case '|': 463 #ifdef FEAT_GUI 464 need_mouse_correct = TRUE; 465 #endif 466 win_setwidth(Prenum != 0 ? (int)Prenum : 9999); 467 break; 468 #endif 469 470 /* jump to tag and split window if tag exists (in preview window) */ 471 #if defined(FEAT_QUICKFIX) 472 case '}': 473 CHECK_CMDWIN 474 if (Prenum) 475 g_do_tagpreview = Prenum; 476 else 477 g_do_tagpreview = p_pvh; 478 /*FALLTHROUGH*/ 479 #endif 480 case ']': 481 case Ctrl_RSB: 482 CHECK_CMDWIN 483 /* keep Visual mode, can select words to use as a tag */ 484 if (Prenum) 485 postponed_split = Prenum; 486 else 487 postponed_split = -1; 488 #ifdef FEAT_QUICKFIX 489 if (nchar != '}') 490 g_do_tagpreview = 0; 491 #endif 492 493 /* Execute the command right here, required when "wincmd ]" 494 * was used in a function. */ 495 do_nv_ident(Ctrl_RSB, NUL); 496 break; 497 498 #ifdef FEAT_SEARCHPATH 499 /* edit file name under cursor in a new window */ 500 case 'f': 501 case 'F': 502 case Ctrl_F: 503 wingotofile: 504 CHECK_CMDWIN 505 506 ptr = grab_file_name(Prenum1, &lnum); 507 if (ptr != NULL) 508 { 509 # ifdef FEAT_GUI 510 need_mouse_correct = TRUE; 511 # endif 512 setpcmark(); 513 if (win_split(0, 0) == OK) 514 { 515 RESET_BINDING(curwin); 516 (void)do_ecmd(0, ptr, NULL, NULL, ECMD_LASTL, 517 ECMD_HIDE, NULL); 518 if (nchar == 'F' && lnum >= 0) 519 { 520 curwin->w_cursor.lnum = lnum; 521 check_cursor_lnum(); 522 beginline(BL_SOL | BL_FIX); 523 } 524 } 525 vim_free(ptr); 526 } 527 break; 528 #endif 529 530 #ifdef FEAT_FIND_ID 531 /* Go to the first occurrence of the identifier under cursor along path in a 532 * new window -- webb 533 */ 534 case 'i': /* Go to any match */ 535 case Ctrl_I: 536 type = FIND_ANY; 537 /* FALLTHROUGH */ 538 case 'd': /* Go to definition, using 'define' */ 539 case Ctrl_D: 540 CHECK_CMDWIN 541 if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0) 542 break; 543 find_pattern_in_path(ptr, 0, len, TRUE, 544 Prenum == 0 ? TRUE : FALSE, type, 545 Prenum1, ACTION_SPLIT, (linenr_T)1, (linenr_T)MAXLNUM); 546 curwin->w_set_curswant = TRUE; 547 break; 548 #endif 549 550 case K_KENTER: 551 case CAR: 552 #if defined(FEAT_QUICKFIX) 553 /* 554 * In a quickfix window a <CR> jumps to the error under the 555 * cursor in a new window. 556 */ 557 if (bt_quickfix(curbuf)) 558 { 559 sprintf((char *)cbuf, "split +%ld%s", 560 (long)curwin->w_cursor.lnum, 561 (curwin->w_llist_ref == NULL) ? "cc" : "ll"); 562 do_cmdline_cmd(cbuf); 563 } 564 #endif 565 break; 566 567 568 /* CTRL-W g extended commands */ 569 case 'g': 570 case Ctrl_G: 571 CHECK_CMDWIN 572 #ifdef USE_ON_FLY_SCROLL 573 dont_scroll = TRUE; /* disallow scrolling here */ 574 #endif 575 ++no_mapping; 576 ++allow_keys; /* no mapping for xchar, but allow key codes */ 577 if (xchar == NUL) 578 xchar = plain_vgetc(); 579 LANGMAP_ADJUST(xchar, TRUE); 580 --no_mapping; 581 --allow_keys; 582 #ifdef FEAT_CMDL_INFO 583 (void)add_to_showcmd(xchar); 584 #endif 585 switch (xchar) 586 { 587 #if defined(FEAT_QUICKFIX) 588 case '}': 589 xchar = Ctrl_RSB; 590 if (Prenum) 591 g_do_tagpreview = Prenum; 592 else 593 g_do_tagpreview = p_pvh; 594 /*FALLTHROUGH*/ 595 #endif 596 case ']': 597 case Ctrl_RSB: 598 /* keep Visual mode, can select words to use as a tag */ 599 if (Prenum) 600 postponed_split = Prenum; 601 else 602 postponed_split = -1; 603 604 /* Execute the command right here, required when 605 * "wincmd g}" was used in a function. */ 606 do_nv_ident('g', xchar); 607 break; 608 609 #ifdef FEAT_SEARCHPATH 610 case 'f': /* CTRL-W gf: "gf" in a new tab page */ 611 case 'F': /* CTRL-W gF: "gF" in a new tab page */ 612 cmdmod.tab = tabpage_index(curtab) + 1; 613 nchar = xchar; 614 goto wingotofile; 615 #endif 616 default: 617 beep_flush(); 618 break; 619 } 620 break; 621 622 default: beep_flush(); 623 break; 624 } 625 } 626 627 /* 628 * Figure out the address type for ":wnncmd". 629 */ 630 void 631 get_wincmd_addr_type(arg, eap) 632 char_u *arg; 633 exarg_T *eap; 634 { 635 switch (*arg) 636 { 637 case 'S': 638 case Ctrl_S: 639 case 's': 640 case Ctrl_N: 641 case 'n': 642 case 'j': 643 case Ctrl_J: 644 case 'k': 645 case Ctrl_K: 646 case 'T': 647 case Ctrl_R: 648 case 'r': 649 case 'R': 650 case 'K': 651 case 'J': 652 case '+': 653 case '-': 654 case Ctrl__: 655 case '_': 656 case '|': 657 case ']': 658 case Ctrl_RSB: 659 case 'g': 660 case Ctrl_G: 661 #ifdef FEAT_VERTSPLIT 662 case Ctrl_V: 663 case 'v': 664 case 'h': 665 case Ctrl_H: 666 case 'l': 667 case Ctrl_L: 668 case 'H': 669 case 'L': 670 case '>': 671 case '<': 672 #endif 673 #if defined(FEAT_QUICKFIX) 674 case '}': 675 #endif 676 #ifdef FEAT_SEARCHPATH 677 case 'f': 678 case 'F': 679 case Ctrl_F: 680 #endif 681 #ifdef FEAT_FIND_ID 682 case 'i': 683 case Ctrl_I: 684 case 'd': 685 case Ctrl_D: 686 #endif 687 /* window size or any count */ 688 eap->addr_type = ADDR_LINES; 689 break; 690 691 case Ctrl_HAT: 692 case '^': 693 /* buffer number */ 694 eap->addr_type = ADDR_BUFFERS; 695 break; 696 697 case Ctrl_Q: 698 case 'q': 699 case Ctrl_C: 700 case 'c': 701 case Ctrl_O: 702 case 'o': 703 case Ctrl_W: 704 case 'w': 705 case 'W': 706 case 'x': 707 case Ctrl_X: 708 /* window number */ 709 eap->addr_type = ADDR_WINDOWS; 710 break; 711 712 #if defined(FEAT_QUICKFIX) 713 case Ctrl_Z: 714 case 'z': 715 case 'P': 716 #endif 717 case 't': 718 case Ctrl_T: 719 case 'b': 720 case Ctrl_B: 721 case 'p': 722 case Ctrl_P: 723 case '=': 724 case CAR: 725 /* no count */ 726 eap->addr_type = 0; 727 break; 728 } 729 } 730 731 static void 732 cmd_with_count(cmd, bufp, bufsize, Prenum) 733 char *cmd; 734 char_u *bufp; 735 size_t bufsize; 736 long Prenum; 737 { 738 size_t len = STRLEN(cmd); 739 740 STRCPY(bufp, cmd); 741 if (Prenum > 0) 742 vim_snprintf((char *)bufp + len, bufsize - len, "%ld", Prenum); 743 } 744 745 /* 746 * split the current window, implements CTRL-W s and :split 747 * 748 * "size" is the height or width for the new window, 0 to use half of current 749 * height or width. 750 * 751 * "flags": 752 * WSP_ROOM: require enough room for new window 753 * WSP_VERT: vertical split. 754 * WSP_TOP: open window at the top-left of the shell (help window). 755 * WSP_BOT: open window at the bottom-right of the shell (quickfix window). 756 * WSP_HELP: creating the help window, keep layout snapshot 757 * 758 * return FAIL for failure, OK otherwise 759 */ 760 int 761 win_split(size, flags) 762 int size; 763 int flags; 764 { 765 /* When the ":tab" modifier was used open a new tab page instead. */ 766 if (may_open_tabpage() == OK) 767 return OK; 768 769 /* Add flags from ":vertical", ":topleft" and ":botright". */ 770 flags |= cmdmod.split; 771 if ((flags & WSP_TOP) && (flags & WSP_BOT)) 772 { 773 EMSG(_("E442: Can't split topleft and botright at the same time")); 774 return FAIL; 775 } 776 777 /* When creating the help window make a snapshot of the window layout. 778 * Otherwise clear the snapshot, it's now invalid. */ 779 if (flags & WSP_HELP) 780 make_snapshot(SNAP_HELP_IDX); 781 else 782 clear_snapshot(curtab, SNAP_HELP_IDX); 783 784 return win_split_ins(size, flags, NULL, 0); 785 } 786 787 /* 788 * When "new_wp" is NULL: split the current window in two. 789 * When "new_wp" is not NULL: insert this window at the far 790 * top/left/right/bottom. 791 * return FAIL for failure, OK otherwise 792 */ 793 int 794 win_split_ins(size, flags, new_wp, dir) 795 int size; 796 int flags; 797 win_T *new_wp; 798 int dir; 799 { 800 win_T *wp = new_wp; 801 win_T *oldwin; 802 int new_size = size; 803 int i; 804 int need_status = 0; 805 int do_equal = FALSE; 806 int needed; 807 int available; 808 int oldwin_height = 0; 809 int layout; 810 frame_T *frp, *curfrp, *frp2, *prevfrp; 811 int before; 812 int minheight; 813 int wmh1; 814 815 if (flags & WSP_TOP) 816 oldwin = firstwin; 817 else if (flags & WSP_BOT) 818 oldwin = lastwin; 819 else 820 oldwin = curwin; 821 822 /* add a status line when p_ls == 1 and splitting the first window */ 823 if (lastwin == firstwin && p_ls == 1 && oldwin->w_status_height == 0) 824 { 825 if (oldwin->w_height <= p_wmh && new_wp == NULL) 826 { 827 EMSG(_(e_noroom)); 828 return FAIL; 829 } 830 need_status = STATUS_HEIGHT; 831 } 832 833 #ifdef FEAT_GUI 834 /* May be needed for the scrollbars that are going to change. */ 835 if (gui.in_use) 836 out_flush(); 837 #endif 838 839 #ifdef FEAT_VERTSPLIT 840 if (flags & WSP_VERT) 841 { 842 int wmw1; 843 int minwidth; 844 845 layout = FR_ROW; 846 847 /* 848 * Check if we are able to split the current window and compute its 849 * width. 850 */ 851 /* Current window requires at least 1 space. */ 852 wmw1 = (p_wmw == 0 ? 1 : p_wmw); 853 needed = wmw1 + 1; 854 if (flags & WSP_ROOM) 855 needed += p_wiw - wmw1; 856 if (flags & (WSP_BOT | WSP_TOP)) 857 { 858 minwidth = frame_minwidth(topframe, NOWIN); 859 available = topframe->fr_width; 860 needed += minwidth; 861 } 862 else if (p_ea) 863 { 864 minwidth = frame_minwidth(oldwin->w_frame, NOWIN); 865 prevfrp = oldwin->w_frame; 866 for (frp = oldwin->w_frame->fr_parent; frp != NULL; 867 frp = frp->fr_parent) 868 { 869 if (frp->fr_layout == FR_ROW) 870 for (frp2 = frp->fr_child; frp2 != NULL; 871 frp2 = frp2->fr_next) 872 if (frp2 != prevfrp) 873 minwidth += frame_minwidth(frp2, NOWIN); 874 prevfrp = frp; 875 } 876 available = topframe->fr_width; 877 needed += minwidth; 878 } 879 else 880 { 881 minwidth = frame_minwidth(oldwin->w_frame, NOWIN); 882 available = oldwin->w_frame->fr_width; 883 needed += minwidth; 884 } 885 if (available < needed && new_wp == NULL) 886 { 887 EMSG(_(e_noroom)); 888 return FAIL; 889 } 890 if (new_size == 0) 891 new_size = oldwin->w_width / 2; 892 if (new_size > available - minwidth - 1) 893 new_size = available - minwidth - 1; 894 if (new_size < wmw1) 895 new_size = wmw1; 896 897 /* if it doesn't fit in the current window, need win_equal() */ 898 if (oldwin->w_width - new_size - 1 < p_wmw) 899 do_equal = TRUE; 900 901 /* We don't like to take lines for the new window from a 902 * 'winfixwidth' window. Take them from a window to the left or right 903 * instead, if possible. */ 904 if (oldwin->w_p_wfw) 905 win_setwidth_win(oldwin->w_width + new_size, oldwin); 906 907 /* Only make all windows the same width if one of them (except oldwin) 908 * is wider than one of the split windows. */ 909 if (!do_equal && p_ea && size == 0 && *p_ead != 'v' 910 && oldwin->w_frame->fr_parent != NULL) 911 { 912 frp = oldwin->w_frame->fr_parent->fr_child; 913 while (frp != NULL) 914 { 915 if (frp->fr_win != oldwin && frp->fr_win != NULL 916 && (frp->fr_win->w_width > new_size 917 || frp->fr_win->w_width > oldwin->w_width 918 - new_size - 1)) 919 { 920 do_equal = TRUE; 921 break; 922 } 923 frp = frp->fr_next; 924 } 925 } 926 } 927 else 928 #endif 929 { 930 layout = FR_COL; 931 932 /* 933 * Check if we are able to split the current window and compute its 934 * height. 935 */ 936 /* Current window requires at least 1 space. */ 937 wmh1 = (p_wmh == 0 ? 1 : p_wmh); 938 needed = wmh1 + STATUS_HEIGHT; 939 if (flags & WSP_ROOM) 940 needed += p_wh - wmh1; 941 if (flags & (WSP_BOT | WSP_TOP)) 942 { 943 minheight = frame_minheight(topframe, NOWIN) + need_status; 944 available = topframe->fr_height; 945 needed += minheight; 946 } 947 else if (p_ea) 948 { 949 minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; 950 prevfrp = oldwin->w_frame; 951 for (frp = oldwin->w_frame->fr_parent; frp != NULL; 952 frp = frp->fr_parent) 953 { 954 if (frp->fr_layout == FR_COL) 955 for (frp2 = frp->fr_child; frp2 != NULL; 956 frp2 = frp2->fr_next) 957 if (frp2 != prevfrp) 958 minheight += frame_minheight(frp2, NOWIN); 959 prevfrp = frp; 960 } 961 available = topframe->fr_height; 962 needed += minheight; 963 } 964 else 965 { 966 minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; 967 available = oldwin->w_frame->fr_height; 968 needed += minheight; 969 } 970 if (available < needed && new_wp == NULL) 971 { 972 EMSG(_(e_noroom)); 973 return FAIL; 974 } 975 oldwin_height = oldwin->w_height; 976 if (need_status) 977 { 978 oldwin->w_status_height = STATUS_HEIGHT; 979 oldwin_height -= STATUS_HEIGHT; 980 } 981 if (new_size == 0) 982 new_size = oldwin_height / 2; 983 if (new_size > available - minheight - STATUS_HEIGHT) 984 new_size = available - minheight - STATUS_HEIGHT; 985 if (new_size < wmh1) 986 new_size = wmh1; 987 988 /* if it doesn't fit in the current window, need win_equal() */ 989 if (oldwin_height - new_size - STATUS_HEIGHT < p_wmh) 990 do_equal = TRUE; 991 992 /* We don't like to take lines for the new window from a 993 * 'winfixheight' window. Take them from a window above or below 994 * instead, if possible. */ 995 if (oldwin->w_p_wfh) 996 { 997 win_setheight_win(oldwin->w_height + new_size + STATUS_HEIGHT, 998 oldwin); 999 oldwin_height = oldwin->w_height; 1000 if (need_status) 1001 oldwin_height -= STATUS_HEIGHT; 1002 } 1003 1004 /* Only make all windows the same height if one of them (except oldwin) 1005 * is higher than one of the split windows. */ 1006 if (!do_equal && p_ea && size == 0 1007 #ifdef FEAT_VERTSPLIT 1008 && *p_ead != 'h' 1009 #endif 1010 && oldwin->w_frame->fr_parent != NULL) 1011 { 1012 frp = oldwin->w_frame->fr_parent->fr_child; 1013 while (frp != NULL) 1014 { 1015 if (frp->fr_win != oldwin && frp->fr_win != NULL 1016 && (frp->fr_win->w_height > new_size 1017 || frp->fr_win->w_height > oldwin_height - new_size 1018 - STATUS_HEIGHT)) 1019 { 1020 do_equal = TRUE; 1021 break; 1022 } 1023 frp = frp->fr_next; 1024 } 1025 } 1026 } 1027 1028 /* 1029 * allocate new window structure and link it in the window list 1030 */ 1031 if ((flags & WSP_TOP) == 0 1032 && ((flags & WSP_BOT) 1033 || (flags & WSP_BELOW) 1034 || (!(flags & WSP_ABOVE) 1035 && ( 1036 #ifdef FEAT_VERTSPLIT 1037 (flags & WSP_VERT) ? p_spr : 1038 #endif 1039 p_sb)))) 1040 { 1041 /* new window below/right of current one */ 1042 if (new_wp == NULL) 1043 wp = win_alloc(oldwin, FALSE); 1044 else 1045 win_append(oldwin, wp); 1046 } 1047 else 1048 { 1049 if (new_wp == NULL) 1050 wp = win_alloc(oldwin->w_prev, FALSE); 1051 else 1052 win_append(oldwin->w_prev, wp); 1053 } 1054 1055 if (new_wp == NULL) 1056 { 1057 if (wp == NULL) 1058 return FAIL; 1059 1060 new_frame(wp); 1061 if (wp->w_frame == NULL) 1062 { 1063 win_free(wp, NULL); 1064 return FAIL; 1065 } 1066 1067 /* make the contents of the new window the same as the current one */ 1068 win_init(wp, curwin, flags); 1069 } 1070 1071 /* 1072 * Reorganise the tree of frames to insert the new window. 1073 */ 1074 if (flags & (WSP_TOP | WSP_BOT)) 1075 { 1076 #ifdef FEAT_VERTSPLIT 1077 if ((topframe->fr_layout == FR_COL && (flags & WSP_VERT) == 0) 1078 || (topframe->fr_layout == FR_ROW && (flags & WSP_VERT) != 0)) 1079 #else 1080 if (topframe->fr_layout == FR_COL) 1081 #endif 1082 { 1083 curfrp = topframe->fr_child; 1084 if (flags & WSP_BOT) 1085 while (curfrp->fr_next != NULL) 1086 curfrp = curfrp->fr_next; 1087 } 1088 else 1089 curfrp = topframe; 1090 before = (flags & WSP_TOP); 1091 } 1092 else 1093 { 1094 curfrp = oldwin->w_frame; 1095 if (flags & WSP_BELOW) 1096 before = FALSE; 1097 else if (flags & WSP_ABOVE) 1098 before = TRUE; 1099 else 1100 #ifdef FEAT_VERTSPLIT 1101 if (flags & WSP_VERT) 1102 before = !p_spr; 1103 else 1104 #endif 1105 before = !p_sb; 1106 } 1107 if (curfrp->fr_parent == NULL || curfrp->fr_parent->fr_layout != layout) 1108 { 1109 /* Need to create a new frame in the tree to make a branch. */ 1110 frp = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); 1111 *frp = *curfrp; 1112 curfrp->fr_layout = layout; 1113 frp->fr_parent = curfrp; 1114 frp->fr_next = NULL; 1115 frp->fr_prev = NULL; 1116 curfrp->fr_child = frp; 1117 curfrp->fr_win = NULL; 1118 curfrp = frp; 1119 if (frp->fr_win != NULL) 1120 oldwin->w_frame = frp; 1121 else 1122 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 1123 frp->fr_parent = curfrp; 1124 } 1125 1126 if (new_wp == NULL) 1127 frp = wp->w_frame; 1128 else 1129 frp = new_wp->w_frame; 1130 frp->fr_parent = curfrp->fr_parent; 1131 1132 /* Insert the new frame at the right place in the frame list. */ 1133 if (before) 1134 frame_insert(curfrp, frp); 1135 else 1136 frame_append(curfrp, frp); 1137 1138 /* Set w_fraction now so that the cursor keeps the same relative 1139 * vertical position. */ 1140 if (oldwin->w_height > 0) 1141 set_fraction(oldwin); 1142 wp->w_fraction = oldwin->w_fraction; 1143 1144 #ifdef FEAT_VERTSPLIT 1145 if (flags & WSP_VERT) 1146 { 1147 wp->w_p_scr = curwin->w_p_scr; 1148 1149 if (need_status) 1150 { 1151 win_new_height(oldwin, oldwin->w_height - 1); 1152 oldwin->w_status_height = need_status; 1153 } 1154 if (flags & (WSP_TOP | WSP_BOT)) 1155 { 1156 /* set height and row of new window to full height */ 1157 wp->w_winrow = tabline_height(); 1158 win_new_height(wp, curfrp->fr_height - (p_ls > 0)); 1159 wp->w_status_height = (p_ls > 0); 1160 } 1161 else 1162 { 1163 /* height and row of new window is same as current window */ 1164 wp->w_winrow = oldwin->w_winrow; 1165 win_new_height(wp, oldwin->w_height); 1166 wp->w_status_height = oldwin->w_status_height; 1167 } 1168 frp->fr_height = curfrp->fr_height; 1169 1170 /* "new_size" of the current window goes to the new window, use 1171 * one column for the vertical separator */ 1172 win_new_width(wp, new_size); 1173 if (before) 1174 wp->w_vsep_width = 1; 1175 else 1176 { 1177 wp->w_vsep_width = oldwin->w_vsep_width; 1178 oldwin->w_vsep_width = 1; 1179 } 1180 if (flags & (WSP_TOP | WSP_BOT)) 1181 { 1182 if (flags & WSP_BOT) 1183 frame_add_vsep(curfrp); 1184 /* Set width of neighbor frame */ 1185 frame_new_width(curfrp, curfrp->fr_width 1186 - (new_size + ((flags & WSP_TOP) != 0)), flags & WSP_TOP, 1187 FALSE); 1188 } 1189 else 1190 win_new_width(oldwin, oldwin->w_width - (new_size + 1)); 1191 if (before) /* new window left of current one */ 1192 { 1193 wp->w_wincol = oldwin->w_wincol; 1194 oldwin->w_wincol += new_size + 1; 1195 } 1196 else /* new window right of current one */ 1197 wp->w_wincol = oldwin->w_wincol + oldwin->w_width + 1; 1198 frame_fix_width(oldwin); 1199 frame_fix_width(wp); 1200 } 1201 else 1202 #endif 1203 { 1204 /* width and column of new window is same as current window */ 1205 #ifdef FEAT_VERTSPLIT 1206 if (flags & (WSP_TOP | WSP_BOT)) 1207 { 1208 wp->w_wincol = 0; 1209 win_new_width(wp, Columns); 1210 wp->w_vsep_width = 0; 1211 } 1212 else 1213 { 1214 wp->w_wincol = oldwin->w_wincol; 1215 win_new_width(wp, oldwin->w_width); 1216 wp->w_vsep_width = oldwin->w_vsep_width; 1217 } 1218 frp->fr_width = curfrp->fr_width; 1219 #endif 1220 1221 /* "new_size" of the current window goes to the new window, use 1222 * one row for the status line */ 1223 win_new_height(wp, new_size); 1224 if (flags & (WSP_TOP | WSP_BOT)) 1225 frame_new_height(curfrp, curfrp->fr_height 1226 - (new_size + STATUS_HEIGHT), flags & WSP_TOP, FALSE); 1227 else 1228 win_new_height(oldwin, oldwin_height - (new_size + STATUS_HEIGHT)); 1229 if (before) /* new window above current one */ 1230 { 1231 wp->w_winrow = oldwin->w_winrow; 1232 wp->w_status_height = STATUS_HEIGHT; 1233 oldwin->w_winrow += wp->w_height + STATUS_HEIGHT; 1234 } 1235 else /* new window below current one */ 1236 { 1237 wp->w_winrow = oldwin->w_winrow + oldwin->w_height + STATUS_HEIGHT; 1238 wp->w_status_height = oldwin->w_status_height; 1239 /* Don't set the status_height for oldwin yet, this might break 1240 * frame_fix_height(oldwin), therefore will be set below. */ 1241 } 1242 #ifdef FEAT_VERTSPLIT 1243 if (flags & WSP_BOT) 1244 frame_add_statusline(curfrp); 1245 #endif 1246 frame_fix_height(wp); 1247 frame_fix_height(oldwin); 1248 1249 if (!before) 1250 /* new window above current one, set the status_height after 1251 * frame_fix_height(oldwin) */ 1252 oldwin->w_status_height = STATUS_HEIGHT; 1253 } 1254 1255 if (flags & (WSP_TOP | WSP_BOT)) 1256 (void)win_comp_pos(); 1257 1258 /* 1259 * Both windows need redrawing 1260 */ 1261 redraw_win_later(wp, NOT_VALID); 1262 wp->w_redr_status = TRUE; 1263 redraw_win_later(oldwin, NOT_VALID); 1264 oldwin->w_redr_status = TRUE; 1265 1266 if (need_status) 1267 { 1268 msg_row = Rows - 1; 1269 msg_col = sc_col; 1270 msg_clr_eos_force(); /* Old command/ruler may still be there */ 1271 comp_col(); 1272 msg_row = Rows - 1; 1273 msg_col = 0; /* put position back at start of line */ 1274 } 1275 1276 /* 1277 * equalize the window sizes. 1278 */ 1279 if (do_equal || dir != 0) 1280 win_equal(wp, TRUE, 1281 #ifdef FEAT_VERTSPLIT 1282 (flags & WSP_VERT) ? (dir == 'v' ? 'b' : 'h') 1283 : dir == 'h' ? 'b' : 1284 #endif 1285 'v'); 1286 1287 /* Don't change the window height/width to 'winheight' / 'winwidth' if a 1288 * size was given. */ 1289 #ifdef FEAT_VERTSPLIT 1290 if (flags & WSP_VERT) 1291 { 1292 i = p_wiw; 1293 if (size != 0) 1294 p_wiw = size; 1295 1296 # ifdef FEAT_GUI 1297 /* When 'guioptions' includes 'L' or 'R' may have to add scrollbars. */ 1298 if (gui.in_use) 1299 gui_init_which_components(NULL); 1300 # endif 1301 } 1302 else 1303 #endif 1304 { 1305 i = p_wh; 1306 if (size != 0) 1307 p_wh = size; 1308 } 1309 1310 #ifdef FEAT_JUMPLIST 1311 /* Keep same changelist position in new window. */ 1312 wp->w_changelistidx = oldwin->w_changelistidx; 1313 #endif 1314 1315 /* 1316 * make the new window the current window 1317 */ 1318 win_enter(wp, FALSE); 1319 #ifdef FEAT_VERTSPLIT 1320 if (flags & WSP_VERT) 1321 p_wiw = i; 1322 else 1323 #endif 1324 p_wh = i; 1325 1326 return OK; 1327 } 1328 1329 1330 /* 1331 * Initialize window "newp" from window "oldp". 1332 * Used when splitting a window and when creating a new tab page. 1333 * The windows will both edit the same buffer. 1334 * WSP_NEWLOC may be specified in flags to prevent the location list from 1335 * being copied. 1336 */ 1337 static void 1338 win_init(newp, oldp, flags) 1339 win_T *newp; 1340 win_T *oldp; 1341 int flags UNUSED; 1342 { 1343 int i; 1344 1345 newp->w_buffer = oldp->w_buffer; 1346 #ifdef FEAT_SYN_HL 1347 newp->w_s = &(oldp->w_buffer->b_s); 1348 #endif 1349 oldp->w_buffer->b_nwindows++; 1350 newp->w_cursor = oldp->w_cursor; 1351 newp->w_valid = 0; 1352 newp->w_curswant = oldp->w_curswant; 1353 newp->w_set_curswant = oldp->w_set_curswant; 1354 newp->w_topline = oldp->w_topline; 1355 #ifdef FEAT_DIFF 1356 newp->w_topfill = oldp->w_topfill; 1357 #endif 1358 newp->w_leftcol = oldp->w_leftcol; 1359 newp->w_pcmark = oldp->w_pcmark; 1360 newp->w_prev_pcmark = oldp->w_prev_pcmark; 1361 newp->w_alt_fnum = oldp->w_alt_fnum; 1362 newp->w_wrow = oldp->w_wrow; 1363 newp->w_fraction = oldp->w_fraction; 1364 newp->w_prev_fraction_row = oldp->w_prev_fraction_row; 1365 #ifdef FEAT_JUMPLIST 1366 copy_jumplist(oldp, newp); 1367 #endif 1368 #ifdef FEAT_QUICKFIX 1369 if (flags & WSP_NEWLOC) 1370 { 1371 /* Don't copy the location list. */ 1372 newp->w_llist = NULL; 1373 newp->w_llist_ref = NULL; 1374 } 1375 else 1376 copy_loclist(oldp, newp); 1377 #endif 1378 newp->w_localdir = (oldp->w_localdir == NULL) 1379 ? NULL : vim_strsave(oldp->w_localdir); 1380 1381 /* copy tagstack and folds */ 1382 for (i = 0; i < oldp->w_tagstacklen; i++) 1383 { 1384 newp->w_tagstack[i] = oldp->w_tagstack[i]; 1385 if (newp->w_tagstack[i].tagname != NULL) 1386 newp->w_tagstack[i].tagname = 1387 vim_strsave(newp->w_tagstack[i].tagname); 1388 } 1389 newp->w_tagstackidx = oldp->w_tagstackidx; 1390 newp->w_tagstacklen = oldp->w_tagstacklen; 1391 #ifdef FEAT_FOLDING 1392 copyFoldingState(oldp, newp); 1393 #endif 1394 1395 win_init_some(newp, oldp); 1396 1397 #ifdef FEAT_SYN_HL 1398 check_colorcolumn(newp); 1399 #endif 1400 } 1401 1402 /* 1403 * Initialize window "newp" from window "old". 1404 * Only the essential things are copied. 1405 */ 1406 static void 1407 win_init_some(newp, oldp) 1408 win_T *newp; 1409 win_T *oldp; 1410 { 1411 /* Use the same argument list. */ 1412 newp->w_alist = oldp->w_alist; 1413 ++newp->w_alist->al_refcount; 1414 newp->w_arg_idx = oldp->w_arg_idx; 1415 1416 /* copy options from existing window */ 1417 win_copy_options(oldp, newp); 1418 } 1419 1420 #endif /* FEAT_WINDOWS */ 1421 1422 #if defined(FEAT_WINDOWS) || defined(PROTO) 1423 /* 1424 * Check if "win" is a pointer to an existing window. 1425 */ 1426 int 1427 win_valid(win) 1428 win_T *win; 1429 { 1430 win_T *wp; 1431 1432 if (win == NULL) 1433 return FALSE; 1434 for (wp = firstwin; wp != NULL; wp = wp->w_next) 1435 if (wp == win) 1436 return TRUE; 1437 return FALSE; 1438 } 1439 1440 /* 1441 * Return the number of windows. 1442 */ 1443 int 1444 win_count() 1445 { 1446 win_T *wp; 1447 int count = 0; 1448 1449 for (wp = firstwin; wp != NULL; wp = wp->w_next) 1450 ++count; 1451 return count; 1452 } 1453 1454 /* 1455 * Make "count" windows on the screen. 1456 * Return actual number of windows on the screen. 1457 * Must be called when there is just one window, filling the whole screen 1458 * (excluding the command line). 1459 */ 1460 int 1461 make_windows(count, vertical) 1462 int count; 1463 int vertical UNUSED; /* split windows vertically if TRUE */ 1464 { 1465 int maxcount; 1466 int todo; 1467 1468 #ifdef FEAT_VERTSPLIT 1469 if (vertical) 1470 { 1471 /* Each windows needs at least 'winminwidth' lines and a separator 1472 * column. */ 1473 maxcount = (curwin->w_width + curwin->w_vsep_width 1474 - (p_wiw - p_wmw)) / (p_wmw + 1); 1475 } 1476 else 1477 #endif 1478 { 1479 /* Each window needs at least 'winminheight' lines and a status line. */ 1480 maxcount = (curwin->w_height + curwin->w_status_height 1481 - (p_wh - p_wmh)) / (p_wmh + STATUS_HEIGHT); 1482 } 1483 1484 if (maxcount < 2) 1485 maxcount = 2; 1486 if (count > maxcount) 1487 count = maxcount; 1488 1489 /* 1490 * add status line now, otherwise first window will be too big 1491 */ 1492 if (count > 1) 1493 last_status(TRUE); 1494 1495 #ifdef FEAT_AUTOCMD 1496 /* 1497 * Don't execute autocommands while creating the windows. Must do that 1498 * when putting the buffers in the windows. 1499 */ 1500 block_autocmds(); 1501 #endif 1502 1503 /* todo is number of windows left to create */ 1504 for (todo = count - 1; todo > 0; --todo) 1505 #ifdef FEAT_VERTSPLIT 1506 if (vertical) 1507 { 1508 if (win_split(curwin->w_width - (curwin->w_width - todo) 1509 / (todo + 1) - 1, WSP_VERT | WSP_ABOVE) == FAIL) 1510 break; 1511 } 1512 else 1513 #endif 1514 { 1515 if (win_split(curwin->w_height - (curwin->w_height - todo 1516 * STATUS_HEIGHT) / (todo + 1) 1517 - STATUS_HEIGHT, WSP_ABOVE) == FAIL) 1518 break; 1519 } 1520 1521 #ifdef FEAT_AUTOCMD 1522 unblock_autocmds(); 1523 #endif 1524 1525 /* return actual number of windows */ 1526 return (count - todo); 1527 } 1528 1529 /* 1530 * Exchange current and next window 1531 */ 1532 static void 1533 win_exchange(Prenum) 1534 long Prenum; 1535 { 1536 frame_T *frp; 1537 frame_T *frp2; 1538 win_T *wp; 1539 win_T *wp2; 1540 int temp; 1541 1542 if (lastwin == firstwin) /* just one window */ 1543 { 1544 beep_flush(); 1545 return; 1546 } 1547 1548 #ifdef FEAT_GUI 1549 need_mouse_correct = TRUE; 1550 #endif 1551 1552 /* 1553 * find window to exchange with 1554 */ 1555 if (Prenum) 1556 { 1557 frp = curwin->w_frame->fr_parent->fr_child; 1558 while (frp != NULL && --Prenum > 0) 1559 frp = frp->fr_next; 1560 } 1561 else if (curwin->w_frame->fr_next != NULL) /* Swap with next */ 1562 frp = curwin->w_frame->fr_next; 1563 else /* Swap last window in row/col with previous */ 1564 frp = curwin->w_frame->fr_prev; 1565 1566 /* We can only exchange a window with another window, not with a frame 1567 * containing windows. */ 1568 if (frp == NULL || frp->fr_win == NULL || frp->fr_win == curwin) 1569 return; 1570 wp = frp->fr_win; 1571 1572 /* 1573 * 1. remove curwin from the list. Remember after which window it was in wp2 1574 * 2. insert curwin before wp in the list 1575 * if wp != wp2 1576 * 3. remove wp from the list 1577 * 4. insert wp after wp2 1578 * 5. exchange the status line height and vsep width. 1579 */ 1580 wp2 = curwin->w_prev; 1581 frp2 = curwin->w_frame->fr_prev; 1582 if (wp->w_prev != curwin) 1583 { 1584 win_remove(curwin, NULL); 1585 frame_remove(curwin->w_frame); 1586 win_append(wp->w_prev, curwin); 1587 frame_insert(frp, curwin->w_frame); 1588 } 1589 if (wp != wp2) 1590 { 1591 win_remove(wp, NULL); 1592 frame_remove(wp->w_frame); 1593 win_append(wp2, wp); 1594 if (frp2 == NULL) 1595 frame_insert(wp->w_frame->fr_parent->fr_child, wp->w_frame); 1596 else 1597 frame_append(frp2, wp->w_frame); 1598 } 1599 temp = curwin->w_status_height; 1600 curwin->w_status_height = wp->w_status_height; 1601 wp->w_status_height = temp; 1602 #ifdef FEAT_VERTSPLIT 1603 temp = curwin->w_vsep_width; 1604 curwin->w_vsep_width = wp->w_vsep_width; 1605 wp->w_vsep_width = temp; 1606 1607 /* If the windows are not in the same frame, exchange the sizes to avoid 1608 * messing up the window layout. Otherwise fix the frame sizes. */ 1609 if (curwin->w_frame->fr_parent != wp->w_frame->fr_parent) 1610 { 1611 temp = curwin->w_height; 1612 curwin->w_height = wp->w_height; 1613 wp->w_height = temp; 1614 temp = curwin->w_width; 1615 curwin->w_width = wp->w_width; 1616 wp->w_width = temp; 1617 } 1618 else 1619 { 1620 frame_fix_height(curwin); 1621 frame_fix_height(wp); 1622 frame_fix_width(curwin); 1623 frame_fix_width(wp); 1624 } 1625 #endif 1626 1627 (void)win_comp_pos(); /* recompute window positions */ 1628 1629 win_enter(wp, TRUE); 1630 redraw_later(CLEAR); 1631 } 1632 1633 /* 1634 * rotate windows: if upwards TRUE the second window becomes the first one 1635 * if upwards FALSE the first window becomes the second one 1636 */ 1637 static void 1638 win_rotate(upwards, count) 1639 int upwards; 1640 int count; 1641 { 1642 win_T *wp1; 1643 win_T *wp2; 1644 frame_T *frp; 1645 int n; 1646 1647 if (firstwin == lastwin) /* nothing to do */ 1648 { 1649 beep_flush(); 1650 return; 1651 } 1652 1653 #ifdef FEAT_GUI 1654 need_mouse_correct = TRUE; 1655 #endif 1656 1657 #ifdef FEAT_VERTSPLIT 1658 /* Check if all frames in this row/col have one window. */ 1659 for (frp = curwin->w_frame->fr_parent->fr_child; frp != NULL; 1660 frp = frp->fr_next) 1661 if (frp->fr_win == NULL) 1662 { 1663 EMSG(_("E443: Cannot rotate when another window is split")); 1664 return; 1665 } 1666 #endif 1667 1668 while (count--) 1669 { 1670 if (upwards) /* first window becomes last window */ 1671 { 1672 /* remove first window/frame from the list */ 1673 frp = curwin->w_frame->fr_parent->fr_child; 1674 wp1 = frp->fr_win; 1675 win_remove(wp1, NULL); 1676 frame_remove(frp); 1677 1678 /* find last frame and append removed window/frame after it */ 1679 for ( ; frp->fr_next != NULL; frp = frp->fr_next) 1680 ; 1681 win_append(frp->fr_win, wp1); 1682 frame_append(frp, wp1->w_frame); 1683 1684 wp2 = frp->fr_win; /* previously last window */ 1685 } 1686 else /* last window becomes first window */ 1687 { 1688 /* find last window/frame in the list and remove it */ 1689 for (frp = curwin->w_frame; frp->fr_next != NULL; 1690 frp = frp->fr_next) 1691 ; 1692 wp1 = frp->fr_win; 1693 wp2 = wp1->w_prev; /* will become last window */ 1694 win_remove(wp1, NULL); 1695 frame_remove(frp); 1696 1697 /* append the removed window/frame before the first in the list */ 1698 win_append(frp->fr_parent->fr_child->fr_win->w_prev, wp1); 1699 frame_insert(frp->fr_parent->fr_child, frp); 1700 } 1701 1702 /* exchange status height and vsep width of old and new last window */ 1703 n = wp2->w_status_height; 1704 wp2->w_status_height = wp1->w_status_height; 1705 wp1->w_status_height = n; 1706 frame_fix_height(wp1); 1707 frame_fix_height(wp2); 1708 #ifdef FEAT_VERTSPLIT 1709 n = wp2->w_vsep_width; 1710 wp2->w_vsep_width = wp1->w_vsep_width; 1711 wp1->w_vsep_width = n; 1712 frame_fix_width(wp1); 1713 frame_fix_width(wp2); 1714 #endif 1715 1716 /* recompute w_winrow and w_wincol for all windows */ 1717 (void)win_comp_pos(); 1718 } 1719 1720 redraw_later(CLEAR); 1721 } 1722 1723 /* 1724 * Move the current window to the very top/bottom/left/right of the screen. 1725 */ 1726 static void 1727 win_totop(size, flags) 1728 int size; 1729 int flags; 1730 { 1731 int dir; 1732 int height = curwin->w_height; 1733 1734 if (lastwin == firstwin) 1735 { 1736 beep_flush(); 1737 return; 1738 } 1739 1740 /* Remove the window and frame from the tree of frames. */ 1741 (void)winframe_remove(curwin, &dir, NULL); 1742 win_remove(curwin, NULL); 1743 last_status(FALSE); /* may need to remove last status line */ 1744 (void)win_comp_pos(); /* recompute window positions */ 1745 1746 /* Split a window on the desired side and put the window there. */ 1747 (void)win_split_ins(size, flags, curwin, dir); 1748 if (!(flags & WSP_VERT)) 1749 { 1750 win_setheight(height); 1751 if (p_ea) 1752 win_equal(curwin, TRUE, 'v'); 1753 } 1754 1755 #if defined(FEAT_GUI) && defined(FEAT_VERTSPLIT) 1756 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 1757 * scrollbars. Have to update them anyway. */ 1758 gui_may_update_scrollbars(); 1759 #endif 1760 } 1761 1762 /* 1763 * Move window "win1" to below/right of "win2" and make "win1" the current 1764 * window. Only works within the same frame! 1765 */ 1766 void 1767 win_move_after(win1, win2) 1768 win_T *win1, *win2; 1769 { 1770 int height; 1771 1772 /* check if the arguments are reasonable */ 1773 if (win1 == win2) 1774 return; 1775 1776 /* check if there is something to do */ 1777 if (win2->w_next != win1) 1778 { 1779 /* may need move the status line/vertical separator of the last window 1780 * */ 1781 if (win1 == lastwin) 1782 { 1783 height = win1->w_prev->w_status_height; 1784 win1->w_prev->w_status_height = win1->w_status_height; 1785 win1->w_status_height = height; 1786 #ifdef FEAT_VERTSPLIT 1787 if (win1->w_prev->w_vsep_width == 1) 1788 { 1789 /* Remove the vertical separator from the last-but-one window, 1790 * add it to the last window. Adjust the frame widths. */ 1791 win1->w_prev->w_vsep_width = 0; 1792 win1->w_prev->w_frame->fr_width -= 1; 1793 win1->w_vsep_width = 1; 1794 win1->w_frame->fr_width += 1; 1795 } 1796 #endif 1797 } 1798 else if (win2 == lastwin) 1799 { 1800 height = win1->w_status_height; 1801 win1->w_status_height = win2->w_status_height; 1802 win2->w_status_height = height; 1803 #ifdef FEAT_VERTSPLIT 1804 if (win1->w_vsep_width == 1) 1805 { 1806 /* Remove the vertical separator from win1, add it to the last 1807 * window, win2. Adjust the frame widths. */ 1808 win2->w_vsep_width = 1; 1809 win2->w_frame->fr_width += 1; 1810 win1->w_vsep_width = 0; 1811 win1->w_frame->fr_width -= 1; 1812 } 1813 #endif 1814 } 1815 win_remove(win1, NULL); 1816 frame_remove(win1->w_frame); 1817 win_append(win2, win1); 1818 frame_append(win2->w_frame, win1->w_frame); 1819 1820 (void)win_comp_pos(); /* recompute w_winrow for all windows */ 1821 redraw_later(NOT_VALID); 1822 } 1823 win_enter(win1, FALSE); 1824 } 1825 1826 /* 1827 * Make all windows the same height. 1828 * 'next_curwin' will soon be the current window, make sure it has enough 1829 * rows. 1830 */ 1831 void 1832 win_equal(next_curwin, current, dir) 1833 win_T *next_curwin; /* pointer to current window to be or NULL */ 1834 int current; /* do only frame with current window */ 1835 int dir; /* 'v' for vertically, 'h' for horizontally, 1836 'b' for both, 0 for using p_ead */ 1837 { 1838 if (dir == 0) 1839 #ifdef FEAT_VERTSPLIT 1840 dir = *p_ead; 1841 #else 1842 dir = 'b'; 1843 #endif 1844 win_equal_rec(next_curwin == NULL ? curwin : next_curwin, current, 1845 topframe, dir, 0, tabline_height(), 1846 (int)Columns, topframe->fr_height); 1847 } 1848 1849 /* 1850 * Set a frame to a new position and height, spreading the available room 1851 * equally over contained frames. 1852 * The window "next_curwin" (if not NULL) should at least get the size from 1853 * 'winheight' and 'winwidth' if possible. 1854 */ 1855 static void 1856 win_equal_rec(next_curwin, current, topfr, dir, col, row, width, height) 1857 win_T *next_curwin; /* pointer to current window to be or NULL */ 1858 int current; /* do only frame with current window */ 1859 frame_T *topfr; /* frame to set size off */ 1860 int dir; /* 'v', 'h' or 'b', see win_equal() */ 1861 int col; /* horizontal position for frame */ 1862 int row; /* vertical position for frame */ 1863 int width; /* new width of frame */ 1864 int height; /* new height of frame */ 1865 { 1866 int n, m; 1867 int extra_sep = 0; 1868 int wincount, totwincount = 0; 1869 frame_T *fr; 1870 int next_curwin_size = 0; 1871 int room = 0; 1872 int new_size; 1873 int has_next_curwin = 0; 1874 int hnc; 1875 1876 if (topfr->fr_layout == FR_LEAF) 1877 { 1878 /* Set the width/height of this frame. 1879 * Redraw when size or position changes */ 1880 if (topfr->fr_height != height || topfr->fr_win->w_winrow != row 1881 #ifdef FEAT_VERTSPLIT 1882 || topfr->fr_width != width || topfr->fr_win->w_wincol != col 1883 #endif 1884 ) 1885 { 1886 topfr->fr_win->w_winrow = row; 1887 frame_new_height(topfr, height, FALSE, FALSE); 1888 #ifdef FEAT_VERTSPLIT 1889 topfr->fr_win->w_wincol = col; 1890 frame_new_width(topfr, width, FALSE, FALSE); 1891 #endif 1892 redraw_all_later(CLEAR); 1893 } 1894 } 1895 #ifdef FEAT_VERTSPLIT 1896 else if (topfr->fr_layout == FR_ROW) 1897 { 1898 topfr->fr_width = width; 1899 topfr->fr_height = height; 1900 1901 if (dir != 'v') /* equalize frame widths */ 1902 { 1903 /* Compute the maximum number of windows horizontally in this 1904 * frame. */ 1905 n = frame_minwidth(topfr, NOWIN); 1906 /* add one for the rightmost window, it doesn't have a separator */ 1907 if (col + width == Columns) 1908 extra_sep = 1; 1909 else 1910 extra_sep = 0; 1911 totwincount = (n + extra_sep) / (p_wmw + 1); 1912 has_next_curwin = frame_has_win(topfr, next_curwin); 1913 1914 /* 1915 * Compute width for "next_curwin" window and room available for 1916 * other windows. 1917 * "m" is the minimal width when counting p_wiw for "next_curwin". 1918 */ 1919 m = frame_minwidth(topfr, next_curwin); 1920 room = width - m; 1921 if (room < 0) 1922 { 1923 next_curwin_size = p_wiw + room; 1924 room = 0; 1925 } 1926 else 1927 { 1928 next_curwin_size = -1; 1929 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 1930 { 1931 /* If 'winfixwidth' set keep the window width if 1932 * possible. 1933 * Watch out for this window being the next_curwin. */ 1934 if (frame_fixed_width(fr)) 1935 { 1936 n = frame_minwidth(fr, NOWIN); 1937 new_size = fr->fr_width; 1938 if (frame_has_win(fr, next_curwin)) 1939 { 1940 room += p_wiw - p_wmw; 1941 next_curwin_size = 0; 1942 if (new_size < p_wiw) 1943 new_size = p_wiw; 1944 } 1945 else 1946 /* These windows don't use up room. */ 1947 totwincount -= (n + (fr->fr_next == NULL 1948 ? extra_sep : 0)) / (p_wmw + 1); 1949 room -= new_size - n; 1950 if (room < 0) 1951 { 1952 new_size += room; 1953 room = 0; 1954 } 1955 fr->fr_newwidth = new_size; 1956 } 1957 } 1958 if (next_curwin_size == -1) 1959 { 1960 if (!has_next_curwin) 1961 next_curwin_size = 0; 1962 else if (totwincount > 1 1963 && (room + (totwincount - 2)) 1964 / (totwincount - 1) > p_wiw) 1965 { 1966 /* Can make all windows wider than 'winwidth', spread 1967 * the room equally. */ 1968 next_curwin_size = (room + p_wiw 1969 + (totwincount - 1) * p_wmw 1970 + (totwincount - 1)) / totwincount; 1971 room -= next_curwin_size - p_wiw; 1972 } 1973 else 1974 next_curwin_size = p_wiw; 1975 } 1976 } 1977 1978 if (has_next_curwin) 1979 --totwincount; /* don't count curwin */ 1980 } 1981 1982 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 1983 { 1984 n = m = 0; 1985 wincount = 1; 1986 if (fr->fr_next == NULL) 1987 /* last frame gets all that remains (avoid roundoff error) */ 1988 new_size = width; 1989 else if (dir == 'v') 1990 new_size = fr->fr_width; 1991 else if (frame_fixed_width(fr)) 1992 { 1993 new_size = fr->fr_newwidth; 1994 wincount = 0; /* doesn't count as a sizeable window */ 1995 } 1996 else 1997 { 1998 /* Compute the maximum number of windows horiz. in "fr". */ 1999 n = frame_minwidth(fr, NOWIN); 2000 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 2001 / (p_wmw + 1); 2002 m = frame_minwidth(fr, next_curwin); 2003 if (has_next_curwin) 2004 hnc = frame_has_win(fr, next_curwin); 2005 else 2006 hnc = FALSE; 2007 if (hnc) /* don't count next_curwin */ 2008 --wincount; 2009 if (totwincount == 0) 2010 new_size = room; 2011 else 2012 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 2013 / totwincount; 2014 if (hnc) /* add next_curwin size */ 2015 { 2016 next_curwin_size -= p_wiw - (m - n); 2017 new_size += next_curwin_size; 2018 room -= new_size - next_curwin_size; 2019 } 2020 else 2021 room -= new_size; 2022 new_size += n; 2023 } 2024 2025 /* Skip frame that is full width when splitting or closing a 2026 * window, unless equalizing all frames. */ 2027 if (!current || dir != 'v' || topfr->fr_parent != NULL 2028 || (new_size != fr->fr_width) 2029 || frame_has_win(fr, next_curwin)) 2030 win_equal_rec(next_curwin, current, fr, dir, col, row, 2031 new_size, height); 2032 col += new_size; 2033 width -= new_size; 2034 totwincount -= wincount; 2035 } 2036 } 2037 #endif 2038 else /* topfr->fr_layout == FR_COL */ 2039 { 2040 #ifdef FEAT_VERTSPLIT 2041 topfr->fr_width = width; 2042 #endif 2043 topfr->fr_height = height; 2044 2045 if (dir != 'h') /* equalize frame heights */ 2046 { 2047 /* Compute maximum number of windows vertically in this frame. */ 2048 n = frame_minheight(topfr, NOWIN); 2049 /* add one for the bottom window if it doesn't have a statusline */ 2050 if (row + height == cmdline_row && p_ls == 0) 2051 extra_sep = 1; 2052 else 2053 extra_sep = 0; 2054 totwincount = (n + extra_sep) / (p_wmh + 1); 2055 has_next_curwin = frame_has_win(topfr, next_curwin); 2056 2057 /* 2058 * Compute height for "next_curwin" window and room available for 2059 * other windows. 2060 * "m" is the minimal height when counting p_wh for "next_curwin". 2061 */ 2062 m = frame_minheight(topfr, next_curwin); 2063 room = height - m; 2064 if (room < 0) 2065 { 2066 /* The room is less then 'winheight', use all space for the 2067 * current window. */ 2068 next_curwin_size = p_wh + room; 2069 room = 0; 2070 } 2071 else 2072 { 2073 next_curwin_size = -1; 2074 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 2075 { 2076 /* If 'winfixheight' set keep the window height if 2077 * possible. 2078 * Watch out for this window being the next_curwin. */ 2079 if (frame_fixed_height(fr)) 2080 { 2081 n = frame_minheight(fr, NOWIN); 2082 new_size = fr->fr_height; 2083 if (frame_has_win(fr, next_curwin)) 2084 { 2085 room += p_wh - p_wmh; 2086 next_curwin_size = 0; 2087 if (new_size < p_wh) 2088 new_size = p_wh; 2089 } 2090 else 2091 /* These windows don't use up room. */ 2092 totwincount -= (n + (fr->fr_next == NULL 2093 ? extra_sep : 0)) / (p_wmh + 1); 2094 room -= new_size - n; 2095 if (room < 0) 2096 { 2097 new_size += room; 2098 room = 0; 2099 } 2100 fr->fr_newheight = new_size; 2101 } 2102 } 2103 if (next_curwin_size == -1) 2104 { 2105 if (!has_next_curwin) 2106 next_curwin_size = 0; 2107 else if (totwincount > 1 2108 && (room + (totwincount - 2)) 2109 / (totwincount - 1) > p_wh) 2110 { 2111 /* can make all windows higher than 'winheight', 2112 * spread the room equally. */ 2113 next_curwin_size = (room + p_wh 2114 + (totwincount - 1) * p_wmh 2115 + (totwincount - 1)) / totwincount; 2116 room -= next_curwin_size - p_wh; 2117 } 2118 else 2119 next_curwin_size = p_wh; 2120 } 2121 } 2122 2123 if (has_next_curwin) 2124 --totwincount; /* don't count curwin */ 2125 } 2126 2127 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 2128 { 2129 n = m = 0; 2130 wincount = 1; 2131 if (fr->fr_next == NULL) 2132 /* last frame gets all that remains (avoid roundoff error) */ 2133 new_size = height; 2134 else if (dir == 'h') 2135 new_size = fr->fr_height; 2136 else if (frame_fixed_height(fr)) 2137 { 2138 new_size = fr->fr_newheight; 2139 wincount = 0; /* doesn't count as a sizeable window */ 2140 } 2141 else 2142 { 2143 /* Compute the maximum number of windows vert. in "fr". */ 2144 n = frame_minheight(fr, NOWIN); 2145 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 2146 / (p_wmh + 1); 2147 m = frame_minheight(fr, next_curwin); 2148 if (has_next_curwin) 2149 hnc = frame_has_win(fr, next_curwin); 2150 else 2151 hnc = FALSE; 2152 if (hnc) /* don't count next_curwin */ 2153 --wincount; 2154 if (totwincount == 0) 2155 new_size = room; 2156 else 2157 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 2158 / totwincount; 2159 if (hnc) /* add next_curwin size */ 2160 { 2161 next_curwin_size -= p_wh - (m - n); 2162 new_size += next_curwin_size; 2163 room -= new_size - next_curwin_size; 2164 } 2165 else 2166 room -= new_size; 2167 new_size += n; 2168 } 2169 /* Skip frame that is full width when splitting or closing a 2170 * window, unless equalizing all frames. */ 2171 if (!current || dir != 'h' || topfr->fr_parent != NULL 2172 || (new_size != fr->fr_height) 2173 || frame_has_win(fr, next_curwin)) 2174 win_equal_rec(next_curwin, current, fr, dir, col, row, 2175 width, new_size); 2176 row += new_size; 2177 height -= new_size; 2178 totwincount -= wincount; 2179 } 2180 } 2181 } 2182 2183 /* 2184 * close all windows for buffer 'buf' 2185 */ 2186 void 2187 close_windows(buf, keep_curwin) 2188 buf_T *buf; 2189 int keep_curwin; /* don't close "curwin" */ 2190 { 2191 win_T *wp; 2192 tabpage_T *tp, *nexttp; 2193 int h = tabline_height(); 2194 2195 ++RedrawingDisabled; 2196 2197 for (wp = firstwin; wp != NULL && lastwin != firstwin; ) 2198 { 2199 if (wp->w_buffer == buf && (!keep_curwin || wp != curwin) 2200 #ifdef FEAT_AUTOCMD 2201 && !(wp->w_closing || wp->w_buffer->b_closing) 2202 #endif 2203 ) 2204 { 2205 win_close(wp, FALSE); 2206 2207 /* Start all over, autocommands may change the window layout. */ 2208 wp = firstwin; 2209 } 2210 else 2211 wp = wp->w_next; 2212 } 2213 2214 /* Also check windows in other tab pages. */ 2215 for (tp = first_tabpage; tp != NULL; tp = nexttp) 2216 { 2217 nexttp = tp->tp_next; 2218 if (tp != curtab) 2219 for (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next) 2220 if (wp->w_buffer == buf 2221 #ifdef FEAT_AUTOCMD 2222 && !(wp->w_closing || wp->w_buffer->b_closing) 2223 #endif 2224 ) 2225 { 2226 win_close_othertab(wp, FALSE, tp); 2227 2228 /* Start all over, the tab page may be closed and 2229 * autocommands may change the window layout. */ 2230 nexttp = first_tabpage; 2231 break; 2232 } 2233 } 2234 2235 --RedrawingDisabled; 2236 2237 redraw_tabline = TRUE; 2238 if (h != tabline_height()) 2239 shell_new_rows(); 2240 } 2241 2242 /* 2243 * Return TRUE if the current window is the only window that exists (ignoring 2244 * "aucmd_win"). 2245 * Returns FALSE if there is a window, possibly in another tab page. 2246 */ 2247 static int 2248 last_window() 2249 { 2250 return (one_window() && first_tabpage->tp_next == NULL); 2251 } 2252 2253 /* 2254 * Return TRUE if there is only one window other than "aucmd_win" in the 2255 * current tab page. 2256 */ 2257 int 2258 one_window() 2259 { 2260 #ifdef FEAT_AUTOCMD 2261 win_T *wp; 2262 int seen_one = FALSE; 2263 2264 FOR_ALL_WINDOWS(wp) 2265 { 2266 if (wp != aucmd_win) 2267 { 2268 if (seen_one) 2269 return FALSE; 2270 seen_one = TRUE; 2271 } 2272 } 2273 return TRUE; 2274 #else 2275 return firstwin == lastwin; 2276 #endif 2277 } 2278 2279 /* 2280 * Close the possibly last window in a tab page. 2281 * Returns TRUE when the window was closed already. 2282 */ 2283 static int 2284 close_last_window_tabpage(win, free_buf, prev_curtab) 2285 win_T *win; 2286 int free_buf; 2287 tabpage_T *prev_curtab; 2288 { 2289 if (firstwin == lastwin) 2290 { 2291 #ifdef FEAT_AUTOCMD 2292 buf_T *old_curbuf = curbuf; 2293 #endif 2294 2295 /* 2296 * Closing the last window in a tab page. First go to another tab 2297 * page and then close the window and the tab page. This avoids that 2298 * curwin and curtab are invalid while we are freeing memory, they may 2299 * be used in GUI events. 2300 * Don't trigger autocommands yet, they may use wrong values, so do 2301 * that below. 2302 */ 2303 goto_tabpage_tp(alt_tabpage(), FALSE, TRUE); 2304 redraw_tabline = TRUE; 2305 2306 /* Safety check: Autocommands may have closed the window when jumping 2307 * to the other tab page. */ 2308 if (valid_tabpage(prev_curtab) && prev_curtab->tp_firstwin == win) 2309 { 2310 int h = tabline_height(); 2311 2312 win_close_othertab(win, free_buf, prev_curtab); 2313 if (h != tabline_height()) 2314 shell_new_rows(); 2315 } 2316 /* Since goto_tabpage_tp above did not trigger *Enter autocommands, do 2317 * that now. */ 2318 #ifdef FEAT_AUTOCMD 2319 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 2320 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 2321 if (old_curbuf != curbuf) 2322 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2323 #endif 2324 return TRUE; 2325 } 2326 return FALSE; 2327 } 2328 2329 /* 2330 * Close window "win". Only works for the current tab page. 2331 * If "free_buf" is TRUE related buffer may be unloaded. 2332 * 2333 * Called by :quit, :close, :xit, :wq and findtag(). 2334 * Returns FAIL when the window was not closed. 2335 */ 2336 int 2337 win_close(win, free_buf) 2338 win_T *win; 2339 int free_buf; 2340 { 2341 win_T *wp; 2342 #ifdef FEAT_AUTOCMD 2343 int other_buffer = FALSE; 2344 #endif 2345 int close_curwin = FALSE; 2346 int dir; 2347 int help_window = FALSE; 2348 tabpage_T *prev_curtab = curtab; 2349 2350 if (last_window()) 2351 { 2352 EMSG(_("E444: Cannot close last window")); 2353 return FAIL; 2354 } 2355 2356 #ifdef FEAT_AUTOCMD 2357 if (win->w_closing || (win->w_buffer != NULL && win->w_buffer->b_closing)) 2358 return FAIL; /* window is already being closed */ 2359 if (win == aucmd_win) 2360 { 2361 EMSG(_("E813: Cannot close autocmd window")); 2362 return FAIL; 2363 } 2364 if ((firstwin == aucmd_win || lastwin == aucmd_win) && one_window()) 2365 { 2366 EMSG(_("E814: Cannot close window, only autocmd window would remain")); 2367 return FAIL; 2368 } 2369 #endif 2370 2371 /* When closing the last window in a tab page first go to another tab page 2372 * and then close the window and the tab page to avoid that curwin and 2373 * curtab are invalid while we are freeing memory. */ 2374 if (close_last_window_tabpage(win, free_buf, prev_curtab)) 2375 return FAIL; 2376 2377 /* When closing the help window, try restoring a snapshot after closing 2378 * the window. Otherwise clear the snapshot, it's now invalid. */ 2379 if (win->w_buffer != NULL && win->w_buffer->b_help) 2380 help_window = TRUE; 2381 else 2382 clear_snapshot(curtab, SNAP_HELP_IDX); 2383 2384 #ifdef FEAT_AUTOCMD 2385 if (win == curwin) 2386 { 2387 /* 2388 * Guess which window is going to be the new current window. 2389 * This may change because of the autocommands (sigh). 2390 */ 2391 wp = frame2win(win_altframe(win, NULL)); 2392 2393 /* 2394 * Be careful: If autocommands delete the window or cause this window 2395 * to be the last one left, return now. 2396 */ 2397 if (wp->w_buffer != curbuf) 2398 { 2399 other_buffer = TRUE; 2400 win->w_closing = TRUE; 2401 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 2402 if (!win_valid(win)) 2403 return FAIL; 2404 win->w_closing = FALSE; 2405 if (last_window()) 2406 return FAIL; 2407 } 2408 win->w_closing = TRUE; 2409 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 2410 if (!win_valid(win)) 2411 return FAIL; 2412 win->w_closing = FALSE; 2413 if (last_window()) 2414 return FAIL; 2415 # ifdef FEAT_EVAL 2416 /* autocmds may abort script processing */ 2417 if (aborting()) 2418 return FAIL; 2419 # endif 2420 } 2421 #endif 2422 2423 #ifdef FEAT_GUI 2424 /* Avoid trouble with scrollbars that are going to be deleted in 2425 * win_free(). */ 2426 if (gui.in_use) 2427 out_flush(); 2428 #endif 2429 2430 #ifdef FEAT_SYN_HL 2431 /* Free independent synblock before the buffer is freed. */ 2432 if (win->w_buffer != NULL) 2433 reset_synblock(win); 2434 #endif 2435 2436 /* 2437 * Close the link to the buffer. 2438 */ 2439 if (win->w_buffer != NULL) 2440 { 2441 #ifdef FEAT_AUTOCMD 2442 win->w_closing = TRUE; 2443 #endif 2444 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, TRUE); 2445 #ifdef FEAT_AUTOCMD 2446 if (win_valid(win)) 2447 win->w_closing = FALSE; 2448 #endif 2449 } 2450 2451 if (only_one_window() && win_valid(win) && win->w_buffer == NULL 2452 && (last_window() || curtab != prev_curtab 2453 || close_last_window_tabpage(win, free_buf, prev_curtab))) 2454 { 2455 /* Autocommands have close all windows, quit now. Restore 2456 * curwin->w_buffer, otherwise writing viminfo may fail. */ 2457 if (curwin->w_buffer == NULL) 2458 curwin->w_buffer = curbuf; 2459 getout(0); 2460 } 2461 2462 /* Autocommands may have closed the window already, or closed the only 2463 * other window or moved to another tab page. */ 2464 else if (!win_valid(win) || last_window() || curtab != prev_curtab 2465 || close_last_window_tabpage(win, free_buf, prev_curtab)) 2466 return FAIL; 2467 2468 /* Free the memory used for the window and get the window that received 2469 * the screen space. */ 2470 wp = win_free_mem(win, &dir, NULL); 2471 2472 /* Make sure curwin isn't invalid. It can cause severe trouble when 2473 * printing an error message. For win_equal() curbuf needs to be valid 2474 * too. */ 2475 if (win == curwin) 2476 { 2477 curwin = wp; 2478 #ifdef FEAT_QUICKFIX 2479 if (wp->w_p_pvw || bt_quickfix(wp->w_buffer)) 2480 { 2481 /* 2482 * If the cursor goes to the preview or the quickfix window, try 2483 * finding another window to go to. 2484 */ 2485 for (;;) 2486 { 2487 if (wp->w_next == NULL) 2488 wp = firstwin; 2489 else 2490 wp = wp->w_next; 2491 if (wp == curwin) 2492 break; 2493 if (!wp->w_p_pvw && !bt_quickfix(wp->w_buffer)) 2494 { 2495 curwin = wp; 2496 break; 2497 } 2498 } 2499 } 2500 #endif 2501 curbuf = curwin->w_buffer; 2502 close_curwin = TRUE; 2503 } 2504 if (p_ea 2505 #ifdef FEAT_VERTSPLIT 2506 && (*p_ead == 'b' || *p_ead == dir) 2507 #endif 2508 ) 2509 win_equal(curwin, TRUE, 2510 #ifdef FEAT_VERTSPLIT 2511 dir 2512 #else 2513 0 2514 #endif 2515 ); 2516 else 2517 win_comp_pos(); 2518 if (close_curwin) 2519 { 2520 win_enter_ext(wp, FALSE, TRUE, TRUE, TRUE); 2521 #ifdef FEAT_AUTOCMD 2522 if (other_buffer) 2523 /* careful: after this wp and win may be invalid! */ 2524 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2525 #endif 2526 } 2527 2528 /* 2529 * If last window has a status line now and we don't want one, 2530 * remove the status line. 2531 */ 2532 last_status(FALSE); 2533 2534 /* After closing the help window, try restoring the window layout from 2535 * before it was opened. */ 2536 if (help_window) 2537 restore_snapshot(SNAP_HELP_IDX, close_curwin); 2538 2539 #if defined(FEAT_GUI) && defined(FEAT_VERTSPLIT) 2540 /* When 'guioptions' includes 'L' or 'R' may have to remove scrollbars. */ 2541 if (gui.in_use && !win_hasvertsplit()) 2542 gui_init_which_components(NULL); 2543 #endif 2544 2545 redraw_all_later(NOT_VALID); 2546 return OK; 2547 } 2548 2549 /* 2550 * Close window "win" in tab page "tp", which is not the current tab page. 2551 * This may be the last window in that tab page and result in closing the tab, 2552 * thus "tp" may become invalid! 2553 * Caller must check if buffer is hidden and whether the tabline needs to be 2554 * updated. 2555 */ 2556 void 2557 win_close_othertab(win, free_buf, tp) 2558 win_T *win; 2559 int free_buf; 2560 tabpage_T *tp; 2561 { 2562 win_T *wp; 2563 int dir; 2564 tabpage_T *ptp = NULL; 2565 int free_tp = FALSE; 2566 2567 #ifdef FEAT_AUTOCMD 2568 if (win->w_closing || win->w_buffer->b_closing) 2569 return; /* window is already being closed */ 2570 #endif 2571 2572 /* Close the link to the buffer. */ 2573 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, FALSE); 2574 2575 /* Careful: Autocommands may have closed the tab page or made it the 2576 * current tab page. */ 2577 for (ptp = first_tabpage; ptp != NULL && ptp != tp; ptp = ptp->tp_next) 2578 ; 2579 if (ptp == NULL || tp == curtab) 2580 return; 2581 2582 /* Autocommands may have closed the window already. */ 2583 for (wp = tp->tp_firstwin; wp != NULL && wp != win; wp = wp->w_next) 2584 ; 2585 if (wp == NULL) 2586 return; 2587 2588 /* When closing the last window in a tab page remove the tab page. */ 2589 if (tp->tp_firstwin == tp->tp_lastwin) 2590 { 2591 if (tp == first_tabpage) 2592 first_tabpage = tp->tp_next; 2593 else 2594 { 2595 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tp; 2596 ptp = ptp->tp_next) 2597 ; 2598 if (ptp == NULL) 2599 { 2600 EMSG2(_(e_intern2), "win_close_othertab()"); 2601 return; 2602 } 2603 ptp->tp_next = tp->tp_next; 2604 } 2605 free_tp = TRUE; 2606 } 2607 2608 /* Free the memory used for the window. */ 2609 win_free_mem(win, &dir, tp); 2610 2611 if (free_tp) 2612 free_tabpage(tp); 2613 } 2614 2615 /* 2616 * Free the memory used for a window. 2617 * Returns a pointer to the window that got the freed up space. 2618 */ 2619 static win_T * 2620 win_free_mem(win, dirp, tp) 2621 win_T *win; 2622 int *dirp; /* set to 'v' or 'h' for direction if 'ea' */ 2623 tabpage_T *tp; /* tab page "win" is in, NULL for current */ 2624 { 2625 frame_T *frp; 2626 win_T *wp; 2627 2628 /* Remove the window and its frame from the tree of frames. */ 2629 frp = win->w_frame; 2630 wp = winframe_remove(win, dirp, tp); 2631 vim_free(frp); 2632 win_free(win, tp); 2633 2634 /* When deleting the current window of another tab page select a new 2635 * current window. */ 2636 if (tp != NULL && win == tp->tp_curwin) 2637 tp->tp_curwin = wp; 2638 2639 return wp; 2640 } 2641 2642 #if defined(EXITFREE) || defined(PROTO) 2643 void 2644 win_free_all() 2645 { 2646 int dummy; 2647 2648 # ifdef FEAT_WINDOWS 2649 while (first_tabpage->tp_next != NULL) 2650 tabpage_close(TRUE); 2651 # endif 2652 2653 # ifdef FEAT_AUTOCMD 2654 if (aucmd_win != NULL) 2655 { 2656 (void)win_free_mem(aucmd_win, &dummy, NULL); 2657 aucmd_win = NULL; 2658 } 2659 # endif 2660 2661 while (firstwin != NULL) 2662 (void)win_free_mem(firstwin, &dummy, NULL); 2663 2664 /* No window should be used after this. Set curwin to NULL to crash 2665 * instead of using freed memory. */ 2666 curwin = NULL; 2667 } 2668 #endif 2669 2670 /* 2671 * Remove a window and its frame from the tree of frames. 2672 * Returns a pointer to the window that got the freed up space. 2673 */ 2674 win_T * 2675 winframe_remove(win, dirp, tp) 2676 win_T *win; 2677 int *dirp UNUSED; /* set to 'v' or 'h' for direction if 'ea' */ 2678 tabpage_T *tp; /* tab page "win" is in, NULL for current */ 2679 { 2680 frame_T *frp, *frp2, *frp3; 2681 frame_T *frp_close = win->w_frame; 2682 win_T *wp; 2683 2684 /* 2685 * If there is only one window there is nothing to remove. 2686 */ 2687 if (tp == NULL ? firstwin == lastwin : tp->tp_firstwin == tp->tp_lastwin) 2688 return NULL; 2689 2690 /* 2691 * Remove the window from its frame. 2692 */ 2693 frp2 = win_altframe(win, tp); 2694 wp = frame2win(frp2); 2695 2696 /* Remove this frame from the list of frames. */ 2697 frame_remove(frp_close); 2698 2699 #ifdef FEAT_VERTSPLIT 2700 if (frp_close->fr_parent->fr_layout == FR_COL) 2701 { 2702 #endif 2703 /* When 'winfixheight' is set, try to find another frame in the column 2704 * (as close to the closed frame as possible) to distribute the height 2705 * to. */ 2706 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfh) 2707 { 2708 frp = frp_close->fr_prev; 2709 frp3 = frp_close->fr_next; 2710 while (frp != NULL || frp3 != NULL) 2711 { 2712 if (frp != NULL) 2713 { 2714 if (frp->fr_win != NULL && !frp->fr_win->w_p_wfh) 2715 { 2716 frp2 = frp; 2717 wp = frp->fr_win; 2718 break; 2719 } 2720 frp = frp->fr_prev; 2721 } 2722 if (frp3 != NULL) 2723 { 2724 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfh) 2725 { 2726 frp2 = frp3; 2727 wp = frp3->fr_win; 2728 break; 2729 } 2730 frp3 = frp3->fr_next; 2731 } 2732 } 2733 } 2734 frame_new_height(frp2, frp2->fr_height + frp_close->fr_height, 2735 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2736 #ifdef FEAT_VERTSPLIT 2737 *dirp = 'v'; 2738 } 2739 else 2740 { 2741 /* When 'winfixwidth' is set, try to find another frame in the column 2742 * (as close to the closed frame as possible) to distribute the width 2743 * to. */ 2744 if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfw) 2745 { 2746 frp = frp_close->fr_prev; 2747 frp3 = frp_close->fr_next; 2748 while (frp != NULL || frp3 != NULL) 2749 { 2750 if (frp != NULL) 2751 { 2752 if (frp->fr_win != NULL && !frp->fr_win->w_p_wfw) 2753 { 2754 frp2 = frp; 2755 wp = frp->fr_win; 2756 break; 2757 } 2758 frp = frp->fr_prev; 2759 } 2760 if (frp3 != NULL) 2761 { 2762 if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfw) 2763 { 2764 frp2 = frp3; 2765 wp = frp3->fr_win; 2766 break; 2767 } 2768 frp3 = frp3->fr_next; 2769 } 2770 } 2771 } 2772 frame_new_width(frp2, frp2->fr_width + frp_close->fr_width, 2773 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2774 *dirp = 'h'; 2775 } 2776 #endif 2777 2778 /* If rows/columns go to a window below/right its positions need to be 2779 * updated. Can only be done after the sizes have been updated. */ 2780 if (frp2 == frp_close->fr_next) 2781 { 2782 int row = win->w_winrow; 2783 int col = W_WINCOL(win); 2784 2785 frame_comp_pos(frp2, &row, &col); 2786 } 2787 2788 if (frp2->fr_next == NULL && frp2->fr_prev == NULL) 2789 { 2790 /* There is no other frame in this list, move its info to the parent 2791 * and remove it. */ 2792 frp2->fr_parent->fr_layout = frp2->fr_layout; 2793 frp2->fr_parent->fr_child = frp2->fr_child; 2794 for (frp = frp2->fr_child; frp != NULL; frp = frp->fr_next) 2795 frp->fr_parent = frp2->fr_parent; 2796 frp2->fr_parent->fr_win = frp2->fr_win; 2797 if (frp2->fr_win != NULL) 2798 frp2->fr_win->w_frame = frp2->fr_parent; 2799 frp = frp2->fr_parent; 2800 vim_free(frp2); 2801 2802 frp2 = frp->fr_parent; 2803 if (frp2 != NULL && frp2->fr_layout == frp->fr_layout) 2804 { 2805 /* The frame above the parent has the same layout, have to merge 2806 * the frames into this list. */ 2807 if (frp2->fr_child == frp) 2808 frp2->fr_child = frp->fr_child; 2809 frp->fr_child->fr_prev = frp->fr_prev; 2810 if (frp->fr_prev != NULL) 2811 frp->fr_prev->fr_next = frp->fr_child; 2812 for (frp3 = frp->fr_child; ; frp3 = frp3->fr_next) 2813 { 2814 frp3->fr_parent = frp2; 2815 if (frp3->fr_next == NULL) 2816 { 2817 frp3->fr_next = frp->fr_next; 2818 if (frp->fr_next != NULL) 2819 frp->fr_next->fr_prev = frp3; 2820 break; 2821 } 2822 } 2823 vim_free(frp); 2824 } 2825 } 2826 2827 return wp; 2828 } 2829 2830 /* 2831 * Find out which frame is going to get the freed up space when "win" is 2832 * closed. 2833 * if 'splitbelow'/'splitleft' the space goes to the window above/left. 2834 * if 'nosplitbelow'/'nosplitleft' the space goes to the window below/right. 2835 * This makes opening a window and closing it immediately keep the same window 2836 * layout. 2837 */ 2838 static frame_T * 2839 win_altframe(win, tp) 2840 win_T *win; 2841 tabpage_T *tp; /* tab page "win" is in, NULL for current */ 2842 { 2843 frame_T *frp; 2844 int b; 2845 2846 if (tp == NULL ? firstwin == lastwin : tp->tp_firstwin == tp->tp_lastwin) 2847 /* Last window in this tab page, will go to next tab page. */ 2848 return alt_tabpage()->tp_curwin->w_frame; 2849 2850 frp = win->w_frame; 2851 #ifdef FEAT_VERTSPLIT 2852 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW) 2853 b = p_spr; 2854 else 2855 #endif 2856 b = p_sb; 2857 if ((!b && frp->fr_next != NULL) || frp->fr_prev == NULL) 2858 return frp->fr_next; 2859 return frp->fr_prev; 2860 } 2861 2862 /* 2863 * Return the tabpage that will be used if the current one is closed. 2864 */ 2865 static tabpage_T * 2866 alt_tabpage() 2867 { 2868 tabpage_T *tp; 2869 2870 /* Use the next tab page if possible. */ 2871 if (curtab->tp_next != NULL) 2872 return curtab->tp_next; 2873 2874 /* Find the last but one tab page. */ 2875 for (tp = first_tabpage; tp->tp_next != curtab; tp = tp->tp_next) 2876 ; 2877 return tp; 2878 } 2879 2880 /* 2881 * Find the left-upper window in frame "frp". 2882 */ 2883 static win_T * 2884 frame2win(frp) 2885 frame_T *frp; 2886 { 2887 while (frp->fr_win == NULL) 2888 frp = frp->fr_child; 2889 return frp->fr_win; 2890 } 2891 2892 /* 2893 * Return TRUE if frame "frp" contains window "wp". 2894 */ 2895 static int 2896 frame_has_win(frp, wp) 2897 frame_T *frp; 2898 win_T *wp; 2899 { 2900 frame_T *p; 2901 2902 if (frp->fr_layout == FR_LEAF) 2903 return frp->fr_win == wp; 2904 2905 for (p = frp->fr_child; p != NULL; p = p->fr_next) 2906 if (frame_has_win(p, wp)) 2907 return TRUE; 2908 return FALSE; 2909 } 2910 2911 /* 2912 * Set a new height for a frame. Recursively sets the height for contained 2913 * frames and windows. Caller must take care of positions. 2914 */ 2915 static void 2916 frame_new_height(topfrp, height, topfirst, wfh) 2917 frame_T *topfrp; 2918 int height; 2919 int topfirst; /* resize topmost contained frame first */ 2920 int wfh; /* obey 'winfixheight' when there is a choice; 2921 may cause the height not to be set */ 2922 { 2923 frame_T *frp; 2924 int extra_lines; 2925 int h; 2926 2927 if (topfrp->fr_win != NULL) 2928 { 2929 /* Simple case: just one window. */ 2930 win_new_height(topfrp->fr_win, 2931 height - topfrp->fr_win->w_status_height); 2932 } 2933 #ifdef FEAT_VERTSPLIT 2934 else if (topfrp->fr_layout == FR_ROW) 2935 { 2936 do 2937 { 2938 /* All frames in this row get the same new height. */ 2939 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 2940 { 2941 frame_new_height(frp, height, topfirst, wfh); 2942 if (frp->fr_height > height) 2943 { 2944 /* Could not fit the windows, make the whole row higher. */ 2945 height = frp->fr_height; 2946 break; 2947 } 2948 } 2949 } 2950 while (frp != NULL); 2951 } 2952 #endif 2953 else /* fr_layout == FR_COL */ 2954 { 2955 /* Complicated case: Resize a column of frames. Resize the bottom 2956 * frame first, frames above that when needed. */ 2957 2958 frp = topfrp->fr_child; 2959 if (wfh) 2960 /* Advance past frames with one window with 'wfh' set. */ 2961 while (frame_fixed_height(frp)) 2962 { 2963 frp = frp->fr_next; 2964 if (frp == NULL) 2965 return; /* no frame without 'wfh', give up */ 2966 } 2967 if (!topfirst) 2968 { 2969 /* Find the bottom frame of this column */ 2970 while (frp->fr_next != NULL) 2971 frp = frp->fr_next; 2972 if (wfh) 2973 /* Advance back for frames with one window with 'wfh' set. */ 2974 while (frame_fixed_height(frp)) 2975 frp = frp->fr_prev; 2976 } 2977 2978 extra_lines = height - topfrp->fr_height; 2979 if (extra_lines < 0) 2980 { 2981 /* reduce height of contained frames, bottom or top frame first */ 2982 while (frp != NULL) 2983 { 2984 h = frame_minheight(frp, NULL); 2985 if (frp->fr_height + extra_lines < h) 2986 { 2987 extra_lines += frp->fr_height - h; 2988 frame_new_height(frp, h, topfirst, wfh); 2989 } 2990 else 2991 { 2992 frame_new_height(frp, frp->fr_height + extra_lines, 2993 topfirst, wfh); 2994 break; 2995 } 2996 if (topfirst) 2997 { 2998 do 2999 frp = frp->fr_next; 3000 while (wfh && frp != NULL && frame_fixed_height(frp)); 3001 } 3002 else 3003 { 3004 do 3005 frp = frp->fr_prev; 3006 while (wfh && frp != NULL && frame_fixed_height(frp)); 3007 } 3008 /* Increase "height" if we could not reduce enough frames. */ 3009 if (frp == NULL) 3010 height -= extra_lines; 3011 } 3012 } 3013 else if (extra_lines > 0) 3014 { 3015 /* increase height of bottom or top frame */ 3016 frame_new_height(frp, frp->fr_height + extra_lines, topfirst, wfh); 3017 } 3018 } 3019 topfrp->fr_height = height; 3020 } 3021 3022 /* 3023 * Return TRUE if height of frame "frp" should not be changed because of 3024 * the 'winfixheight' option. 3025 */ 3026 static int 3027 frame_fixed_height(frp) 3028 frame_T *frp; 3029 { 3030 /* frame with one window: fixed height if 'winfixheight' set. */ 3031 if (frp->fr_win != NULL) 3032 return frp->fr_win->w_p_wfh; 3033 3034 if (frp->fr_layout == FR_ROW) 3035 { 3036 /* The frame is fixed height if one of the frames in the row is fixed 3037 * height. */ 3038 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 3039 if (frame_fixed_height(frp)) 3040 return TRUE; 3041 return FALSE; 3042 } 3043 3044 /* frp->fr_layout == FR_COL: The frame is fixed height if all of the 3045 * frames in the row are fixed height. */ 3046 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 3047 if (!frame_fixed_height(frp)) 3048 return FALSE; 3049 return TRUE; 3050 } 3051 3052 #ifdef FEAT_VERTSPLIT 3053 /* 3054 * Return TRUE if width of frame "frp" should not be changed because of 3055 * the 'winfixwidth' option. 3056 */ 3057 static int 3058 frame_fixed_width(frp) 3059 frame_T *frp; 3060 { 3061 /* frame with one window: fixed width if 'winfixwidth' set. */ 3062 if (frp->fr_win != NULL) 3063 return frp->fr_win->w_p_wfw; 3064 3065 if (frp->fr_layout == FR_COL) 3066 { 3067 /* The frame is fixed width if one of the frames in the row is fixed 3068 * width. */ 3069 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 3070 if (frame_fixed_width(frp)) 3071 return TRUE; 3072 return FALSE; 3073 } 3074 3075 /* frp->fr_layout == FR_ROW: The frame is fixed width if all of the 3076 * frames in the row are fixed width. */ 3077 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 3078 if (!frame_fixed_width(frp)) 3079 return FALSE; 3080 return TRUE; 3081 } 3082 3083 /* 3084 * Add a status line to windows at the bottom of "frp". 3085 * Note: Does not check if there is room! 3086 */ 3087 static void 3088 frame_add_statusline(frp) 3089 frame_T *frp; 3090 { 3091 win_T *wp; 3092 3093 if (frp->fr_layout == FR_LEAF) 3094 { 3095 wp = frp->fr_win; 3096 if (wp->w_status_height == 0) 3097 { 3098 if (wp->w_height > 0) /* don't make it negative */ 3099 --wp->w_height; 3100 wp->w_status_height = STATUS_HEIGHT; 3101 } 3102 } 3103 else if (frp->fr_layout == FR_ROW) 3104 { 3105 /* Handle all the frames in the row. */ 3106 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 3107 frame_add_statusline(frp); 3108 } 3109 else /* frp->fr_layout == FR_COL */ 3110 { 3111 /* Only need to handle the last frame in the column. */ 3112 for (frp = frp->fr_child; frp->fr_next != NULL; frp = frp->fr_next) 3113 ; 3114 frame_add_statusline(frp); 3115 } 3116 } 3117 3118 /* 3119 * Set width of a frame. Handles recursively going through contained frames. 3120 * May remove separator line for windows at the right side (for win_close()). 3121 */ 3122 static void 3123 frame_new_width(topfrp, width, leftfirst, wfw) 3124 frame_T *topfrp; 3125 int width; 3126 int leftfirst; /* resize leftmost contained frame first */ 3127 int wfw; /* obey 'winfixwidth' when there is a choice; 3128 may cause the width not to be set */ 3129 { 3130 frame_T *frp; 3131 int extra_cols; 3132 int w; 3133 win_T *wp; 3134 3135 if (topfrp->fr_layout == FR_LEAF) 3136 { 3137 /* Simple case: just one window. */ 3138 wp = topfrp->fr_win; 3139 /* Find out if there are any windows right of this one. */ 3140 for (frp = topfrp; frp->fr_parent != NULL; frp = frp->fr_parent) 3141 if (frp->fr_parent->fr_layout == FR_ROW && frp->fr_next != NULL) 3142 break; 3143 if (frp->fr_parent == NULL) 3144 wp->w_vsep_width = 0; 3145 win_new_width(wp, width - wp->w_vsep_width); 3146 } 3147 else if (topfrp->fr_layout == FR_COL) 3148 { 3149 do 3150 { 3151 /* All frames in this column get the same new width. */ 3152 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3153 { 3154 frame_new_width(frp, width, leftfirst, wfw); 3155 if (frp->fr_width > width) 3156 { 3157 /* Could not fit the windows, make whole column wider. */ 3158 width = frp->fr_width; 3159 break; 3160 } 3161 } 3162 } while (frp != NULL); 3163 } 3164 else /* fr_layout == FR_ROW */ 3165 { 3166 /* Complicated case: Resize a row of frames. Resize the rightmost 3167 * frame first, frames left of it when needed. */ 3168 3169 frp = topfrp->fr_child; 3170 if (wfw) 3171 /* Advance past frames with one window with 'wfw' set. */ 3172 while (frame_fixed_width(frp)) 3173 { 3174 frp = frp->fr_next; 3175 if (frp == NULL) 3176 return; /* no frame without 'wfw', give up */ 3177 } 3178 if (!leftfirst) 3179 { 3180 /* Find the rightmost frame of this row */ 3181 while (frp->fr_next != NULL) 3182 frp = frp->fr_next; 3183 if (wfw) 3184 /* Advance back for frames with one window with 'wfw' set. */ 3185 while (frame_fixed_width(frp)) 3186 frp = frp->fr_prev; 3187 } 3188 3189 extra_cols = width - topfrp->fr_width; 3190 if (extra_cols < 0) 3191 { 3192 /* reduce frame width, rightmost frame first */ 3193 while (frp != NULL) 3194 { 3195 w = frame_minwidth(frp, NULL); 3196 if (frp->fr_width + extra_cols < w) 3197 { 3198 extra_cols += frp->fr_width - w; 3199 frame_new_width(frp, w, leftfirst, wfw); 3200 } 3201 else 3202 { 3203 frame_new_width(frp, frp->fr_width + extra_cols, 3204 leftfirst, wfw); 3205 break; 3206 } 3207 if (leftfirst) 3208 { 3209 do 3210 frp = frp->fr_next; 3211 while (wfw && frp != NULL && frame_fixed_width(frp)); 3212 } 3213 else 3214 { 3215 do 3216 frp = frp->fr_prev; 3217 while (wfw && frp != NULL && frame_fixed_width(frp)); 3218 } 3219 /* Increase "width" if we could not reduce enough frames. */ 3220 if (frp == NULL) 3221 width -= extra_cols; 3222 } 3223 } 3224 else if (extra_cols > 0) 3225 { 3226 /* increase width of rightmost frame */ 3227 frame_new_width(frp, frp->fr_width + extra_cols, leftfirst, wfw); 3228 } 3229 } 3230 topfrp->fr_width = width; 3231 } 3232 3233 /* 3234 * Add the vertical separator to windows at the right side of "frp". 3235 * Note: Does not check if there is room! 3236 */ 3237 static void 3238 frame_add_vsep(frp) 3239 frame_T *frp; 3240 { 3241 win_T *wp; 3242 3243 if (frp->fr_layout == FR_LEAF) 3244 { 3245 wp = frp->fr_win; 3246 if (wp->w_vsep_width == 0) 3247 { 3248 if (wp->w_width > 0) /* don't make it negative */ 3249 --wp->w_width; 3250 wp->w_vsep_width = 1; 3251 } 3252 } 3253 else if (frp->fr_layout == FR_COL) 3254 { 3255 /* Handle all the frames in the column. */ 3256 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 3257 frame_add_vsep(frp); 3258 } 3259 else /* frp->fr_layout == FR_ROW */ 3260 { 3261 /* Only need to handle the last frame in the row. */ 3262 frp = frp->fr_child; 3263 while (frp->fr_next != NULL) 3264 frp = frp->fr_next; 3265 frame_add_vsep(frp); 3266 } 3267 } 3268 3269 /* 3270 * Set frame width from the window it contains. 3271 */ 3272 static void 3273 frame_fix_width(wp) 3274 win_T *wp; 3275 { 3276 wp->w_frame->fr_width = wp->w_width + wp->w_vsep_width; 3277 } 3278 #endif 3279 3280 /* 3281 * Set frame height from the window it contains. 3282 */ 3283 static void 3284 frame_fix_height(wp) 3285 win_T *wp; 3286 { 3287 wp->w_frame->fr_height = wp->w_height + wp->w_status_height; 3288 } 3289 3290 /* 3291 * Compute the minimal height for frame "topfrp". 3292 * Uses the 'winminheight' option. 3293 * When "next_curwin" isn't NULL, use p_wh for this window. 3294 * When "next_curwin" is NOWIN, don't use at least one line for the current 3295 * window. 3296 */ 3297 static int 3298 frame_minheight(topfrp, next_curwin) 3299 frame_T *topfrp; 3300 win_T *next_curwin; 3301 { 3302 frame_T *frp; 3303 int m; 3304 #ifdef FEAT_VERTSPLIT 3305 int n; 3306 #endif 3307 3308 if (topfrp->fr_win != NULL) 3309 { 3310 if (topfrp->fr_win == next_curwin) 3311 m = p_wh + topfrp->fr_win->w_status_height; 3312 else 3313 { 3314 /* window: minimal height of the window plus status line */ 3315 m = p_wmh + topfrp->fr_win->w_status_height; 3316 /* Current window is minimal one line high */ 3317 if (p_wmh == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3318 ++m; 3319 } 3320 } 3321 #ifdef FEAT_VERTSPLIT 3322 else if (topfrp->fr_layout == FR_ROW) 3323 { 3324 /* get the minimal height from each frame in this row */ 3325 m = 0; 3326 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3327 { 3328 n = frame_minheight(frp, next_curwin); 3329 if (n > m) 3330 m = n; 3331 } 3332 } 3333 #endif 3334 else 3335 { 3336 /* Add up the minimal heights for all frames in this column. */ 3337 m = 0; 3338 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3339 m += frame_minheight(frp, next_curwin); 3340 } 3341 3342 return m; 3343 } 3344 3345 #ifdef FEAT_VERTSPLIT 3346 /* 3347 * Compute the minimal width for frame "topfrp". 3348 * When "next_curwin" isn't NULL, use p_wiw for this window. 3349 * When "next_curwin" is NOWIN, don't use at least one column for the current 3350 * window. 3351 */ 3352 static int 3353 frame_minwidth(topfrp, next_curwin) 3354 frame_T *topfrp; 3355 win_T *next_curwin; /* use p_wh and p_wiw for next_curwin */ 3356 { 3357 frame_T *frp; 3358 int m, n; 3359 3360 if (topfrp->fr_win != NULL) 3361 { 3362 if (topfrp->fr_win == next_curwin) 3363 m = p_wiw + topfrp->fr_win->w_vsep_width; 3364 else 3365 { 3366 /* window: minimal width of the window plus separator column */ 3367 m = p_wmw + topfrp->fr_win->w_vsep_width; 3368 /* Current window is minimal one column wide */ 3369 if (p_wmw == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 3370 ++m; 3371 } 3372 } 3373 else if (topfrp->fr_layout == FR_COL) 3374 { 3375 /* get the minimal width from each frame in this column */ 3376 m = 0; 3377 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3378 { 3379 n = frame_minwidth(frp, next_curwin); 3380 if (n > m) 3381 m = n; 3382 } 3383 } 3384 else 3385 { 3386 /* Add up the minimal widths for all frames in this row. */ 3387 m = 0; 3388 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 3389 m += frame_minwidth(frp, next_curwin); 3390 } 3391 3392 return m; 3393 } 3394 #endif 3395 3396 3397 /* 3398 * Try to close all windows except current one. 3399 * Buffers in the other windows become hidden if 'hidden' is set, or '!' is 3400 * used and the buffer was modified. 3401 * 3402 * Used by ":bdel" and ":only". 3403 */ 3404 void 3405 close_others(message, forceit) 3406 int message; 3407 int forceit; /* always hide all other windows */ 3408 { 3409 win_T *wp; 3410 win_T *nextwp; 3411 int r; 3412 3413 if (one_window()) 3414 { 3415 if (message 3416 #ifdef FEAT_AUTOCMD 3417 && !autocmd_busy 3418 #endif 3419 ) 3420 MSG(_(m_onlyone)); 3421 return; 3422 } 3423 3424 /* Be very careful here: autocommands may change the window layout. */ 3425 for (wp = firstwin; win_valid(wp); wp = nextwp) 3426 { 3427 nextwp = wp->w_next; 3428 if (wp != curwin) /* don't close current window */ 3429 { 3430 3431 /* Check if it's allowed to abandon this window */ 3432 r = can_abandon(wp->w_buffer, forceit); 3433 #ifdef FEAT_AUTOCMD 3434 if (!win_valid(wp)) /* autocommands messed wp up */ 3435 { 3436 nextwp = firstwin; 3437 continue; 3438 } 3439 #endif 3440 if (!r) 3441 { 3442 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 3443 if (message && (p_confirm || cmdmod.confirm) && p_write) 3444 { 3445 dialog_changed(wp->w_buffer, FALSE); 3446 # ifdef FEAT_AUTOCMD 3447 if (!win_valid(wp)) /* autocommands messed wp up */ 3448 { 3449 nextwp = firstwin; 3450 continue; 3451 } 3452 # endif 3453 } 3454 if (bufIsChanged(wp->w_buffer)) 3455 #endif 3456 continue; 3457 } 3458 win_close(wp, !P_HID(wp->w_buffer) && !bufIsChanged(wp->w_buffer)); 3459 } 3460 } 3461 3462 if (message && lastwin != firstwin) 3463 EMSG(_("E445: Other window contains changes")); 3464 } 3465 3466 #endif /* FEAT_WINDOWS */ 3467 3468 /* 3469 * Init the current window "curwin". 3470 * Called when a new file is being edited. 3471 */ 3472 void 3473 curwin_init() 3474 { 3475 win_init_empty(curwin); 3476 } 3477 3478 void 3479 win_init_empty(wp) 3480 win_T *wp; 3481 { 3482 redraw_win_later(wp, NOT_VALID); 3483 wp->w_lines_valid = 0; 3484 wp->w_cursor.lnum = 1; 3485 wp->w_curswant = wp->w_cursor.col = 0; 3486 #ifdef FEAT_VIRTUALEDIT 3487 wp->w_cursor.coladd = 0; 3488 #endif 3489 wp->w_pcmark.lnum = 1; /* pcmark not cleared but set to line 1 */ 3490 wp->w_pcmark.col = 0; 3491 wp->w_prev_pcmark.lnum = 0; 3492 wp->w_prev_pcmark.col = 0; 3493 wp->w_topline = 1; 3494 #ifdef FEAT_DIFF 3495 wp->w_topfill = 0; 3496 #endif 3497 wp->w_botline = 2; 3498 #ifdef FEAT_FKMAP 3499 if (wp->w_p_rl) 3500 wp->w_farsi = W_CONV + W_R_L; 3501 else 3502 wp->w_farsi = W_CONV; 3503 #endif 3504 #ifdef FEAT_SYN_HL 3505 wp->w_s = &wp->w_buffer->b_s; 3506 #endif 3507 } 3508 3509 /* 3510 * Allocate the first window and put an empty buffer in it. 3511 * Called from main(). 3512 * Return FAIL when something goes wrong (out of memory). 3513 */ 3514 int 3515 win_alloc_first() 3516 { 3517 if (win_alloc_firstwin(NULL) == FAIL) 3518 return FAIL; 3519 3520 #ifdef FEAT_WINDOWS 3521 first_tabpage = alloc_tabpage(); 3522 if (first_tabpage == NULL) 3523 return FAIL; 3524 first_tabpage->tp_topframe = topframe; 3525 curtab = first_tabpage; 3526 #endif 3527 3528 return OK; 3529 } 3530 3531 #if defined(FEAT_AUTOCMD) || defined(PROTO) 3532 /* 3533 * Init "aucmd_win". This can only be done after the first 3534 * window is fully initialized, thus it can't be in win_alloc_first(). 3535 */ 3536 void 3537 win_alloc_aucmd_win() 3538 { 3539 aucmd_win = win_alloc(NULL, TRUE); 3540 if (aucmd_win != NULL) 3541 { 3542 win_init_some(aucmd_win, curwin); 3543 RESET_BINDING(aucmd_win); 3544 new_frame(aucmd_win); 3545 } 3546 } 3547 #endif 3548 3549 /* 3550 * Allocate the first window or the first window in a new tab page. 3551 * When "oldwin" is NULL create an empty buffer for it. 3552 * When "oldwin" is not NULL copy info from it to the new window (only with 3553 * FEAT_WINDOWS). 3554 * Return FAIL when something goes wrong (out of memory). 3555 */ 3556 static int 3557 win_alloc_firstwin(oldwin) 3558 win_T *oldwin; 3559 { 3560 curwin = win_alloc(NULL, FALSE); 3561 if (oldwin == NULL) 3562 { 3563 /* Very first window, need to create an empty buffer for it and 3564 * initialize from scratch. */ 3565 curbuf = buflist_new(NULL, NULL, 1L, BLN_LISTED); 3566 if (curwin == NULL || curbuf == NULL) 3567 return FAIL; 3568 curwin->w_buffer = curbuf; 3569 #ifdef FEAT_SYN_HL 3570 curwin->w_s = &(curbuf->b_s); 3571 #endif 3572 curbuf->b_nwindows = 1; /* there is one window */ 3573 #ifdef FEAT_WINDOWS 3574 curwin->w_alist = &global_alist; 3575 #endif 3576 curwin_init(); /* init current window */ 3577 } 3578 #ifdef FEAT_WINDOWS 3579 else 3580 { 3581 /* First window in new tab page, initialize it from "oldwin". */ 3582 win_init(curwin, oldwin, 0); 3583 3584 /* We don't want cursor- and scroll-binding in the first window. */ 3585 RESET_BINDING(curwin); 3586 } 3587 #endif 3588 3589 new_frame(curwin); 3590 if (curwin->w_frame == NULL) 3591 return FAIL; 3592 topframe = curwin->w_frame; 3593 #ifdef FEAT_VERTSPLIT 3594 topframe->fr_width = Columns; 3595 #endif 3596 topframe->fr_height = Rows - p_ch; 3597 topframe->fr_win = curwin; 3598 3599 return OK; 3600 } 3601 3602 /* 3603 * Create a frame for window "wp". 3604 */ 3605 static void 3606 new_frame(win_T *wp) 3607 { 3608 frame_T *frp = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); 3609 3610 wp->w_frame = frp; 3611 if (frp != NULL) 3612 { 3613 frp->fr_layout = FR_LEAF; 3614 frp->fr_win = wp; 3615 } 3616 } 3617 3618 /* 3619 * Initialize the window and frame size to the maximum. 3620 */ 3621 void 3622 win_init_size() 3623 { 3624 firstwin->w_height = ROWS_AVAIL; 3625 topframe->fr_height = ROWS_AVAIL; 3626 #ifdef FEAT_VERTSPLIT 3627 firstwin->w_width = Columns; 3628 topframe->fr_width = Columns; 3629 #endif 3630 } 3631 3632 #if defined(FEAT_WINDOWS) || defined(PROTO) 3633 3634 /* 3635 * Allocate a new tabpage_T and init the values. 3636 * Returns NULL when out of memory. 3637 */ 3638 static tabpage_T * 3639 alloc_tabpage() 3640 { 3641 tabpage_T *tp; 3642 # ifdef FEAT_GUI 3643 int i; 3644 # endif 3645 3646 3647 tp = (tabpage_T *)alloc_clear((unsigned)sizeof(tabpage_T)); 3648 if (tp == NULL) 3649 return NULL; 3650 3651 # ifdef FEAT_EVAL 3652 /* init t: variables */ 3653 tp->tp_vars = dict_alloc(); 3654 if (tp->tp_vars == NULL) 3655 { 3656 vim_free(tp); 3657 return NULL; 3658 } 3659 init_var_dict(tp->tp_vars, &tp->tp_winvar, VAR_SCOPE); 3660 # endif 3661 3662 # ifdef FEAT_GUI 3663 for (i = 0; i < 3; i++) 3664 tp->tp_prev_which_scrollbars[i] = -1; 3665 # endif 3666 # ifdef FEAT_DIFF 3667 tp->tp_diff_invalid = TRUE; 3668 # endif 3669 tp->tp_ch_used = p_ch; 3670 3671 return tp; 3672 } 3673 3674 void 3675 free_tabpage(tp) 3676 tabpage_T *tp; 3677 { 3678 int idx; 3679 3680 # ifdef FEAT_DIFF 3681 diff_clear(tp); 3682 # endif 3683 for (idx = 0; idx < SNAP_COUNT; ++idx) 3684 clear_snapshot(tp, idx); 3685 #ifdef FEAT_EVAL 3686 vars_clear(&tp->tp_vars->dv_hashtab); /* free all t: variables */ 3687 hash_init(&tp->tp_vars->dv_hashtab); 3688 unref_var_dict(tp->tp_vars); 3689 #endif 3690 3691 #ifdef FEAT_PYTHON 3692 python_tabpage_free(tp); 3693 #endif 3694 3695 #ifdef FEAT_PYTHON3 3696 python3_tabpage_free(tp); 3697 #endif 3698 3699 vim_free(tp); 3700 } 3701 3702 /* 3703 * Create a new Tab page with one window. 3704 * It will edit the current buffer, like after ":split". 3705 * When "after" is 0 put it just after the current Tab page. 3706 * Otherwise put it just before tab page "after". 3707 * Return FAIL or OK. 3708 */ 3709 int 3710 win_new_tabpage(after) 3711 int after; 3712 { 3713 tabpage_T *tp = curtab; 3714 tabpage_T *newtp; 3715 int n; 3716 3717 newtp = alloc_tabpage(); 3718 if (newtp == NULL) 3719 return FAIL; 3720 3721 /* Remember the current windows in this Tab page. */ 3722 if (leave_tabpage(curbuf, TRUE) == FAIL) 3723 { 3724 vim_free(newtp); 3725 return FAIL; 3726 } 3727 curtab = newtp; 3728 3729 /* Create a new empty window. */ 3730 if (win_alloc_firstwin(tp->tp_curwin) == OK) 3731 { 3732 /* Make the new Tab page the new topframe. */ 3733 if (after == 1) 3734 { 3735 /* New tab page becomes the first one. */ 3736 newtp->tp_next = first_tabpage; 3737 first_tabpage = newtp; 3738 } 3739 else 3740 { 3741 if (after > 0) 3742 { 3743 /* Put new tab page before tab page "after". */ 3744 n = 2; 3745 for (tp = first_tabpage; tp->tp_next != NULL 3746 && n < after; tp = tp->tp_next) 3747 ++n; 3748 } 3749 newtp->tp_next = tp->tp_next; 3750 tp->tp_next = newtp; 3751 } 3752 win_init_size(); 3753 firstwin->w_winrow = tabline_height(); 3754 win_comp_scroll(curwin); 3755 3756 newtp->tp_topframe = topframe; 3757 last_status(FALSE); 3758 3759 #if defined(FEAT_GUI) 3760 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 3761 * scrollbars. Have to update them anyway. */ 3762 gui_may_update_scrollbars(); 3763 #endif 3764 3765 redraw_all_later(CLEAR); 3766 #ifdef FEAT_AUTOCMD 3767 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 3768 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3769 #endif 3770 return OK; 3771 } 3772 3773 /* Failed, get back the previous Tab page */ 3774 enter_tabpage(curtab, curbuf, TRUE, TRUE); 3775 return FAIL; 3776 } 3777 3778 /* 3779 * Open a new tab page if ":tab cmd" was used. It will edit the same buffer, 3780 * like with ":split". 3781 * Returns OK if a new tab page was created, FAIL otherwise. 3782 */ 3783 int 3784 may_open_tabpage() 3785 { 3786 int n = (cmdmod.tab == 0) ? postponed_split_tab : cmdmod.tab; 3787 3788 if (n != 0) 3789 { 3790 cmdmod.tab = 0; /* reset it to avoid doing it twice */ 3791 postponed_split_tab = 0; 3792 return win_new_tabpage(n); 3793 } 3794 return FAIL; 3795 } 3796 3797 /* 3798 * Create up to "maxcount" tabpages with empty windows. 3799 * Returns the number of resulting tab pages. 3800 */ 3801 int 3802 make_tabpages(maxcount) 3803 int maxcount; 3804 { 3805 int count = maxcount; 3806 int todo; 3807 3808 /* Limit to 'tabpagemax' tabs. */ 3809 if (count > p_tpm) 3810 count = p_tpm; 3811 3812 #ifdef FEAT_AUTOCMD 3813 /* 3814 * Don't execute autocommands while creating the tab pages. Must do that 3815 * when putting the buffers in the windows. 3816 */ 3817 block_autocmds(); 3818 #endif 3819 3820 for (todo = count - 1; todo > 0; --todo) 3821 if (win_new_tabpage(0) == FAIL) 3822 break; 3823 3824 #ifdef FEAT_AUTOCMD 3825 unblock_autocmds(); 3826 #endif 3827 3828 /* return actual number of tab pages */ 3829 return (count - todo); 3830 } 3831 3832 /* 3833 * Return TRUE when "tpc" points to a valid tab page. 3834 */ 3835 int 3836 valid_tabpage(tpc) 3837 tabpage_T *tpc; 3838 { 3839 tabpage_T *tp; 3840 3841 for (tp = first_tabpage; tp != NULL; tp = tp->tp_next) 3842 if (tp == tpc) 3843 return TRUE; 3844 return FALSE; 3845 } 3846 3847 /* 3848 * Find tab page "n" (first one is 1). Returns NULL when not found. 3849 */ 3850 tabpage_T * 3851 find_tabpage(n) 3852 int n; 3853 { 3854 tabpage_T *tp; 3855 int i = 1; 3856 3857 for (tp = first_tabpage; tp != NULL && i != n; tp = tp->tp_next) 3858 ++i; 3859 return tp; 3860 } 3861 3862 /* 3863 * Get index of tab page "tp". First one has index 1. 3864 * When not found returns number of tab pages plus one. 3865 */ 3866 int 3867 tabpage_index(ftp) 3868 tabpage_T *ftp; 3869 { 3870 int i = 1; 3871 tabpage_T *tp; 3872 3873 for (tp = first_tabpage; tp != NULL && tp != ftp; tp = tp->tp_next) 3874 ++i; 3875 return i; 3876 } 3877 3878 /* 3879 * Prepare for leaving the current tab page. 3880 * When autocommands change "curtab" we don't leave the tab page and return 3881 * FAIL. 3882 * Careful: When OK is returned need to get a new tab page very very soon! 3883 */ 3884 static int 3885 leave_tabpage(new_curbuf, trigger_leave_autocmds) 3886 buf_T *new_curbuf UNUSED; /* what is going to be the new curbuf, 3887 NULL if unknown */ 3888 int trigger_leave_autocmds UNUSED; 3889 { 3890 tabpage_T *tp = curtab; 3891 3892 reset_VIsual_and_resel(); /* stop Visual mode */ 3893 #ifdef FEAT_AUTOCMD 3894 if (trigger_leave_autocmds) 3895 { 3896 if (new_curbuf != curbuf) 3897 { 3898 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 3899 if (curtab != tp) 3900 return FAIL; 3901 } 3902 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 3903 if (curtab != tp) 3904 return FAIL; 3905 apply_autocmds(EVENT_TABLEAVE, NULL, NULL, FALSE, curbuf); 3906 if (curtab != tp) 3907 return FAIL; 3908 } 3909 #endif 3910 #if defined(FEAT_GUI) 3911 /* Remove the scrollbars. They may be added back later. */ 3912 if (gui.in_use) 3913 gui_remove_scrollbars(); 3914 #endif 3915 tp->tp_curwin = curwin; 3916 tp->tp_prevwin = prevwin; 3917 tp->tp_firstwin = firstwin; 3918 tp->tp_lastwin = lastwin; 3919 tp->tp_old_Rows = Rows; 3920 tp->tp_old_Columns = Columns; 3921 firstwin = NULL; 3922 lastwin = NULL; 3923 return OK; 3924 } 3925 3926 /* 3927 * Start using tab page "tp". 3928 * Only to be used after leave_tabpage() or freeing the current tab page. 3929 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 3930 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 3931 */ 3932 static void 3933 enter_tabpage(tp, old_curbuf, trigger_enter_autocmds, trigger_leave_autocmds) 3934 tabpage_T *tp; 3935 buf_T *old_curbuf UNUSED; 3936 int trigger_enter_autocmds UNUSED; 3937 int trigger_leave_autocmds UNUSED; 3938 { 3939 int old_off = tp->tp_firstwin->w_winrow; 3940 win_T *next_prevwin = tp->tp_prevwin; 3941 3942 curtab = tp; 3943 firstwin = tp->tp_firstwin; 3944 lastwin = tp->tp_lastwin; 3945 topframe = tp->tp_topframe; 3946 3947 /* We would like doing the TabEnter event first, but we don't have a 3948 * valid current window yet, which may break some commands. 3949 * This triggers autocommands, thus may make "tp" invalid. */ 3950 win_enter_ext(tp->tp_curwin, FALSE, TRUE, 3951 trigger_enter_autocmds, trigger_leave_autocmds); 3952 prevwin = next_prevwin; 3953 3954 last_status(FALSE); /* status line may appear or disappear */ 3955 (void)win_comp_pos(); /* recompute w_winrow for all windows */ 3956 must_redraw = CLEAR; /* need to redraw everything */ 3957 #ifdef FEAT_DIFF 3958 diff_need_scrollbind = TRUE; 3959 #endif 3960 3961 /* The tabpage line may have appeared or disappeared, may need to resize 3962 * the frames for that. When the Vim window was resized need to update 3963 * frame sizes too. Use the stored value of p_ch, so that it can be 3964 * different for each tab page. */ 3965 p_ch = curtab->tp_ch_used; 3966 if (curtab->tp_old_Rows != Rows || (old_off != firstwin->w_winrow 3967 #ifdef FEAT_GUI_TABLINE 3968 && !gui_use_tabline() 3969 #endif 3970 )) 3971 shell_new_rows(); 3972 #ifdef FEAT_VERTSPLIT 3973 if (curtab->tp_old_Columns != Columns && starting == 0) 3974 shell_new_columns(); /* update window widths */ 3975 #endif 3976 3977 #if defined(FEAT_GUI) 3978 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 3979 * scrollbars. Have to update them anyway. */ 3980 gui_may_update_scrollbars(); 3981 #endif 3982 3983 #ifdef FEAT_AUTOCMD 3984 /* Apply autocommands after updating the display, when 'rows' and 3985 * 'columns' have been set correctly. */ 3986 if (trigger_enter_autocmds) 3987 { 3988 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3989 if (old_curbuf != curbuf) 3990 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 3991 } 3992 #endif 3993 3994 redraw_all_later(CLEAR); 3995 } 3996 3997 /* 3998 * Go to tab page "n". For ":tab N" and "Ngt". 3999 * When "n" is 9999 go to the last tab page. 4000 */ 4001 void 4002 goto_tabpage(n) 4003 int n; 4004 { 4005 tabpage_T *tp; 4006 tabpage_T *ttp; 4007 int i; 4008 4009 if (text_locked()) 4010 { 4011 /* Not allowed when editing the command line. */ 4012 #ifdef FEAT_CMDWIN 4013 if (cmdwin_type != 0) 4014 EMSG(_(e_cmdwin)); 4015 else 4016 #endif 4017 EMSG(_(e_secure)); 4018 return; 4019 } 4020 4021 /* If there is only one it can't work. */ 4022 if (first_tabpage->tp_next == NULL) 4023 { 4024 if (n > 1) 4025 beep_flush(); 4026 return; 4027 } 4028 4029 if (n == 0) 4030 { 4031 /* No count, go to next tab page, wrap around end. */ 4032 if (curtab->tp_next == NULL) 4033 tp = first_tabpage; 4034 else 4035 tp = curtab->tp_next; 4036 } 4037 else if (n < 0) 4038 { 4039 /* "gT": go to previous tab page, wrap around end. "N gT" repeats 4040 * this N times. */ 4041 ttp = curtab; 4042 for (i = n; i < 0; ++i) 4043 { 4044 for (tp = first_tabpage; tp->tp_next != ttp && tp->tp_next != NULL; 4045 tp = tp->tp_next) 4046 ; 4047 ttp = tp; 4048 } 4049 } 4050 else if (n == 9999) 4051 { 4052 /* Go to last tab page. */ 4053 for (tp = first_tabpage; tp->tp_next != NULL; tp = tp->tp_next) 4054 ; 4055 } 4056 else 4057 { 4058 /* Go to tab page "n". */ 4059 tp = find_tabpage(n); 4060 if (tp == NULL) 4061 { 4062 beep_flush(); 4063 return; 4064 } 4065 } 4066 4067 goto_tabpage_tp(tp, TRUE, TRUE); 4068 4069 #ifdef FEAT_GUI_TABLINE 4070 if (gui_use_tabline()) 4071 gui_mch_set_curtab(tabpage_index(curtab)); 4072 #endif 4073 } 4074 4075 /* 4076 * Go to tabpage "tp". 4077 * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. 4078 * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. 4079 * Note: doesn't update the GUI tab. 4080 */ 4081 void 4082 goto_tabpage_tp(tp, trigger_enter_autocmds, trigger_leave_autocmds) 4083 tabpage_T *tp; 4084 int trigger_enter_autocmds; 4085 int trigger_leave_autocmds; 4086 { 4087 /* Don't repeat a message in another tab page. */ 4088 set_keep_msg(NULL, 0); 4089 4090 if (tp != curtab && leave_tabpage(tp->tp_curwin->w_buffer, 4091 trigger_leave_autocmds) == OK) 4092 { 4093 if (valid_tabpage(tp)) 4094 enter_tabpage(tp, curbuf, trigger_enter_autocmds, 4095 trigger_leave_autocmds); 4096 else 4097 enter_tabpage(curtab, curbuf, trigger_enter_autocmds, 4098 trigger_leave_autocmds); 4099 } 4100 } 4101 4102 /* 4103 * Enter window "wp" in tab page "tp". 4104 * Also updates the GUI tab. 4105 */ 4106 void 4107 goto_tabpage_win(tp, wp) 4108 tabpage_T *tp; 4109 win_T *wp; 4110 { 4111 goto_tabpage_tp(tp, TRUE, TRUE); 4112 if (curtab == tp && win_valid(wp)) 4113 { 4114 win_enter(wp, TRUE); 4115 # ifdef FEAT_GUI_TABLINE 4116 if (gui_use_tabline()) 4117 gui_mch_set_curtab(tabpage_index(curtab)); 4118 # endif 4119 } 4120 } 4121 4122 /* 4123 * Move the current tab page to after tab page "nr". 4124 */ 4125 void 4126 tabpage_move(nr) 4127 int nr; 4128 { 4129 int n = 1; 4130 tabpage_T *tp, *tp_dst; 4131 4132 if (first_tabpage->tp_next == NULL) 4133 return; 4134 4135 for (tp = first_tabpage; tp->tp_next != NULL && n < nr; tp = tp->tp_next) 4136 ++n; 4137 4138 if (tp == curtab || (nr > 0 && tp->tp_next != NULL 4139 && tp->tp_next == curtab)) 4140 return; 4141 4142 tp_dst = tp; 4143 4144 /* Remove the current tab page from the list of tab pages. */ 4145 if (curtab == first_tabpage) 4146 first_tabpage = curtab->tp_next; 4147 else 4148 { 4149 for (tp = first_tabpage; tp != NULL; tp = tp->tp_next) 4150 if (tp->tp_next == curtab) 4151 break; 4152 if (tp == NULL) /* "cannot happen" */ 4153 return; 4154 tp->tp_next = curtab->tp_next; 4155 } 4156 4157 /* Re-insert it at the specified position. */ 4158 if (nr <= 0) 4159 { 4160 curtab->tp_next = first_tabpage; 4161 first_tabpage = curtab; 4162 } 4163 else 4164 { 4165 curtab->tp_next = tp_dst->tp_next; 4166 tp_dst->tp_next = curtab; 4167 } 4168 4169 /* Need to redraw the tabline. Tab page contents doesn't change. */ 4170 redraw_tabline = TRUE; 4171 } 4172 4173 4174 /* 4175 * Go to another window. 4176 * When jumping to another buffer, stop Visual mode. Do this before 4177 * changing windows so we can yank the selection into the '*' register. 4178 * When jumping to another window on the same buffer, adjust its cursor 4179 * position to keep the same Visual area. 4180 */ 4181 void 4182 win_goto(wp) 4183 win_T *wp; 4184 { 4185 #ifdef FEAT_CONCEAL 4186 win_T *owp = curwin; 4187 #endif 4188 4189 if (text_locked()) 4190 { 4191 beep_flush(); 4192 text_locked_msg(); 4193 return; 4194 } 4195 #ifdef FEAT_AUTOCMD 4196 if (curbuf_locked()) 4197 return; 4198 #endif 4199 4200 if (wp->w_buffer != curbuf) 4201 reset_VIsual_and_resel(); 4202 else if (VIsual_active) 4203 wp->w_cursor = curwin->w_cursor; 4204 4205 #ifdef FEAT_GUI 4206 need_mouse_correct = TRUE; 4207 #endif 4208 win_enter(wp, TRUE); 4209 4210 #ifdef FEAT_CONCEAL 4211 /* Conceal cursor line in previous window, unconceal in current window. */ 4212 if (win_valid(owp) && owp->w_p_cole > 0 && !msg_scrolled) 4213 update_single_line(owp, owp->w_cursor.lnum); 4214 if (curwin->w_p_cole > 0 && !msg_scrolled) 4215 need_cursor_line_redraw = TRUE; 4216 #endif 4217 } 4218 4219 #if defined(FEAT_PERL) || defined(PROTO) 4220 /* 4221 * Find window number "winnr" (counting top to bottom). 4222 */ 4223 win_T * 4224 win_find_nr(winnr) 4225 int winnr; 4226 { 4227 win_T *wp; 4228 4229 # ifdef FEAT_WINDOWS 4230 for (wp = firstwin; wp != NULL; wp = wp->w_next) 4231 if (--winnr == 0) 4232 break; 4233 return wp; 4234 # else 4235 return curwin; 4236 # endif 4237 } 4238 #endif 4239 4240 #if (defined(FEAT_WINDOWS) && (defined(FEAT_PYTHON) || defined(FEAT_PYTHON3))) \ 4241 || defined(PROTO) 4242 /* 4243 * Find the tabpage for window "win". 4244 */ 4245 tabpage_T * 4246 win_find_tabpage(win) 4247 win_T *win; 4248 { 4249 win_T *wp; 4250 tabpage_T *tp; 4251 4252 for (tp = first_tabpage; tp != NULL; tp = tp->tp_next) 4253 for (wp = (tp == curtab ? firstwin : tp->tp_firstwin); 4254 wp != NULL; wp = wp->w_next) 4255 if (wp == win) 4256 return tp; 4257 return NULL; 4258 } 4259 #endif 4260 4261 #ifdef FEAT_VERTSPLIT 4262 /* 4263 * Move to window above or below "count" times. 4264 */ 4265 static void 4266 win_goto_ver(up, count) 4267 int up; /* TRUE to go to win above */ 4268 long count; 4269 { 4270 frame_T *fr; 4271 frame_T *nfr; 4272 frame_T *foundfr; 4273 4274 foundfr = curwin->w_frame; 4275 while (count--) 4276 { 4277 /* 4278 * First go upwards in the tree of frames until we find a upwards or 4279 * downwards neighbor. 4280 */ 4281 fr = foundfr; 4282 for (;;) 4283 { 4284 if (fr == topframe) 4285 goto end; 4286 if (up) 4287 nfr = fr->fr_prev; 4288 else 4289 nfr = fr->fr_next; 4290 if (fr->fr_parent->fr_layout == FR_COL && nfr != NULL) 4291 break; 4292 fr = fr->fr_parent; 4293 } 4294 4295 /* 4296 * Now go downwards to find the bottom or top frame in it. 4297 */ 4298 for (;;) 4299 { 4300 if (nfr->fr_layout == FR_LEAF) 4301 { 4302 foundfr = nfr; 4303 break; 4304 } 4305 fr = nfr->fr_child; 4306 if (nfr->fr_layout == FR_ROW) 4307 { 4308 /* Find the frame at the cursor row. */ 4309 while (fr->fr_next != NULL 4310 && frame2win(fr)->w_wincol + fr->fr_width 4311 <= curwin->w_wincol + curwin->w_wcol) 4312 fr = fr->fr_next; 4313 } 4314 if (nfr->fr_layout == FR_COL && up) 4315 while (fr->fr_next != NULL) 4316 fr = fr->fr_next; 4317 nfr = fr; 4318 } 4319 } 4320 end: 4321 if (foundfr != NULL) 4322 win_goto(foundfr->fr_win); 4323 } 4324 4325 /* 4326 * Move to left or right window. 4327 */ 4328 static void 4329 win_goto_hor(left, count) 4330 int left; /* TRUE to go to left win */ 4331 long count; 4332 { 4333 frame_T *fr; 4334 frame_T *nfr; 4335 frame_T *foundfr; 4336 4337 foundfr = curwin->w_frame; 4338 while (count--) 4339 { 4340 /* 4341 * First go upwards in the tree of frames until we find a left or 4342 * right neighbor. 4343 */ 4344 fr = foundfr; 4345 for (;;) 4346 { 4347 if (fr == topframe) 4348 goto end; 4349 if (left) 4350 nfr = fr->fr_prev; 4351 else 4352 nfr = fr->fr_next; 4353 if (fr->fr_parent->fr_layout == FR_ROW && nfr != NULL) 4354 break; 4355 fr = fr->fr_parent; 4356 } 4357 4358 /* 4359 * Now go downwards to find the leftmost or rightmost frame in it. 4360 */ 4361 for (;;) 4362 { 4363 if (nfr->fr_layout == FR_LEAF) 4364 { 4365 foundfr = nfr; 4366 break; 4367 } 4368 fr = nfr->fr_child; 4369 if (nfr->fr_layout == FR_COL) 4370 { 4371 /* Find the frame at the cursor row. */ 4372 while (fr->fr_next != NULL 4373 && frame2win(fr)->w_winrow + fr->fr_height 4374 <= curwin->w_winrow + curwin->w_wrow) 4375 fr = fr->fr_next; 4376 } 4377 if (nfr->fr_layout == FR_ROW && left) 4378 while (fr->fr_next != NULL) 4379 fr = fr->fr_next; 4380 nfr = fr; 4381 } 4382 } 4383 end: 4384 if (foundfr != NULL) 4385 win_goto(foundfr->fr_win); 4386 } 4387 #endif 4388 4389 /* 4390 * Make window "wp" the current window. 4391 */ 4392 void 4393 win_enter(wp, undo_sync) 4394 win_T *wp; 4395 int undo_sync; 4396 { 4397 win_enter_ext(wp, undo_sync, FALSE, TRUE, TRUE); 4398 } 4399 4400 /* 4401 * Make window wp the current window. 4402 * Can be called with "curwin_invalid" TRUE, which means that curwin has just 4403 * been closed and isn't valid. 4404 */ 4405 static void 4406 win_enter_ext(wp, undo_sync, curwin_invalid, trigger_enter_autocmds, trigger_leave_autocmds) 4407 win_T *wp; 4408 int undo_sync; 4409 int curwin_invalid; 4410 int trigger_enter_autocmds UNUSED; 4411 int trigger_leave_autocmds UNUSED; 4412 { 4413 #ifdef FEAT_AUTOCMD 4414 int other_buffer = FALSE; 4415 #endif 4416 4417 if (wp == curwin && !curwin_invalid) /* nothing to do */ 4418 return; 4419 4420 #ifdef FEAT_AUTOCMD 4421 if (!curwin_invalid && trigger_leave_autocmds) 4422 { 4423 /* 4424 * Be careful: If autocommands delete the window, return now. 4425 */ 4426 if (wp->w_buffer != curbuf) 4427 { 4428 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 4429 other_buffer = TRUE; 4430 if (!win_valid(wp)) 4431 return; 4432 } 4433 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 4434 if (!win_valid(wp)) 4435 return; 4436 # ifdef FEAT_EVAL 4437 /* autocmds may abort script processing */ 4438 if (aborting()) 4439 return; 4440 # endif 4441 } 4442 #endif 4443 4444 /* sync undo before leaving the current buffer */ 4445 if (undo_sync && curbuf != wp->w_buffer) 4446 u_sync(FALSE); 4447 4448 /* Might need to scroll the old window before switching, e.g., when the 4449 * cursor was moved. */ 4450 update_topline(); 4451 4452 /* may have to copy the buffer options when 'cpo' contains 'S' */ 4453 if (wp->w_buffer != curbuf) 4454 buf_copy_options(wp->w_buffer, BCO_ENTER | BCO_NOHELP); 4455 if (!curwin_invalid) 4456 { 4457 prevwin = curwin; /* remember for CTRL-W p */ 4458 curwin->w_redr_status = TRUE; 4459 } 4460 curwin = wp; 4461 curbuf = wp->w_buffer; 4462 check_cursor(); 4463 #ifdef FEAT_VIRTUALEDIT 4464 if (!virtual_active()) 4465 curwin->w_cursor.coladd = 0; 4466 #endif 4467 changed_line_abv_curs(); /* assume cursor position needs updating */ 4468 4469 if (curwin->w_localdir != NULL) 4470 { 4471 /* Window has a local directory: Save current directory as global 4472 * directory (unless that was done already) and change to the local 4473 * directory. */ 4474 if (globaldir == NULL) 4475 { 4476 char_u cwd[MAXPATHL]; 4477 4478 if (mch_dirname(cwd, MAXPATHL) == OK) 4479 globaldir = vim_strsave(cwd); 4480 } 4481 if (mch_chdir((char *)curwin->w_localdir) == 0) 4482 shorten_fnames(TRUE); 4483 } 4484 else if (globaldir != NULL) 4485 { 4486 /* Window doesn't have a local directory and we are not in the global 4487 * directory: Change to the global directory. */ 4488 ignored = mch_chdir((char *)globaldir); 4489 vim_free(globaldir); 4490 globaldir = NULL; 4491 shorten_fnames(TRUE); 4492 } 4493 4494 #ifdef FEAT_AUTOCMD 4495 if (trigger_enter_autocmds) 4496 { 4497 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 4498 if (other_buffer) 4499 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 4500 } 4501 #endif 4502 4503 #ifdef FEAT_TITLE 4504 maketitle(); 4505 #endif 4506 curwin->w_redr_status = TRUE; 4507 redraw_tabline = TRUE; 4508 if (restart_edit) 4509 redraw_later(VALID); /* causes status line redraw */ 4510 4511 /* set window height to desired minimal value */ 4512 if (curwin->w_height < p_wh && !curwin->w_p_wfh) 4513 win_setheight((int)p_wh); 4514 else if (curwin->w_height == 0) 4515 win_setheight(1); 4516 4517 #ifdef FEAT_VERTSPLIT 4518 /* set window width to desired minimal value */ 4519 if (curwin->w_width < p_wiw && !curwin->w_p_wfw) 4520 win_setwidth((int)p_wiw); 4521 #endif 4522 4523 #ifdef FEAT_MOUSE 4524 setmouse(); /* in case jumped to/from help buffer */ 4525 #endif 4526 4527 /* Change directories when the 'acd' option is set. */ 4528 DO_AUTOCHDIR 4529 } 4530 4531 #endif /* FEAT_WINDOWS */ 4532 4533 #if defined(FEAT_WINDOWS) || defined(FEAT_SIGNS) || defined(PROTO) 4534 /* 4535 * Jump to the first open window that contains buffer "buf", if one exists. 4536 * Returns a pointer to the window found, otherwise NULL. 4537 */ 4538 win_T * 4539 buf_jump_open_win(buf) 4540 buf_T *buf; 4541 { 4542 win_T *wp = NULL; 4543 4544 if (curwin->w_buffer == buf) 4545 wp = curwin; 4546 # ifdef FEAT_WINDOWS 4547 else 4548 for (wp = firstwin; wp != NULL; wp = wp->w_next) 4549 if (wp->w_buffer == buf) 4550 break; 4551 if (wp != NULL) 4552 win_enter(wp, FALSE); 4553 # endif 4554 return wp; 4555 } 4556 4557 /* 4558 * Jump to the first open window in any tab page that contains buffer "buf", 4559 * if one exists. 4560 * Returns a pointer to the window found, otherwise NULL. 4561 */ 4562 win_T * 4563 buf_jump_open_tab(buf) 4564 buf_T *buf; 4565 { 4566 win_T *wp = buf_jump_open_win(buf); 4567 # ifdef FEAT_WINDOWS 4568 tabpage_T *tp; 4569 4570 if (wp != NULL) 4571 return wp; 4572 4573 for (tp = first_tabpage; tp != NULL; tp = tp->tp_next) 4574 if (tp != curtab) 4575 { 4576 for (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next) 4577 if (wp->w_buffer == buf) 4578 break; 4579 if (wp != NULL) 4580 { 4581 goto_tabpage_win(tp, wp); 4582 if (curwin != wp) 4583 wp = NULL; /* something went wrong */ 4584 break; 4585 } 4586 } 4587 # endif 4588 return wp; 4589 } 4590 #endif 4591 4592 /* 4593 * Allocate a window structure and link it in the window list when "hidden" is 4594 * FALSE. 4595 */ 4596 static win_T * 4597 win_alloc(after, hidden) 4598 win_T *after UNUSED; 4599 int hidden UNUSED; 4600 { 4601 win_T *new_wp; 4602 4603 /* 4604 * allocate window structure and linesizes arrays 4605 */ 4606 new_wp = (win_T *)alloc_clear((unsigned)sizeof(win_T)); 4607 if (new_wp == NULL) 4608 return NULL; 4609 4610 if (win_alloc_lines(new_wp) == FAIL) 4611 { 4612 vim_free(new_wp); 4613 return NULL; 4614 } 4615 4616 #ifdef FEAT_EVAL 4617 /* init w: variables */ 4618 new_wp->w_vars = dict_alloc(); 4619 if (new_wp->w_vars == NULL) 4620 { 4621 win_free_lsize(new_wp); 4622 vim_free(new_wp); 4623 return NULL; 4624 } 4625 init_var_dict(new_wp->w_vars, &new_wp->w_winvar, VAR_SCOPE); 4626 #endif 4627 4628 #ifdef FEAT_AUTOCMD 4629 /* Don't execute autocommands while the window is not properly 4630 * initialized yet. gui_create_scrollbar() may trigger a FocusGained 4631 * event. */ 4632 block_autocmds(); 4633 #endif 4634 /* 4635 * link the window in the window list 4636 */ 4637 #ifdef FEAT_WINDOWS 4638 if (!hidden) 4639 win_append(after, new_wp); 4640 #endif 4641 #ifdef FEAT_VERTSPLIT 4642 new_wp->w_wincol = 0; 4643 new_wp->w_width = Columns; 4644 #endif 4645 4646 /* position the display and the cursor at the top of the file. */ 4647 new_wp->w_topline = 1; 4648 #ifdef FEAT_DIFF 4649 new_wp->w_topfill = 0; 4650 #endif 4651 new_wp->w_botline = 2; 4652 new_wp->w_cursor.lnum = 1; 4653 #ifdef FEAT_SCROLLBIND 4654 new_wp->w_scbind_pos = 1; 4655 #endif 4656 4657 /* We won't calculate w_fraction until resizing the window */ 4658 new_wp->w_fraction = 0; 4659 new_wp->w_prev_fraction_row = -1; 4660 4661 #ifdef FEAT_GUI 4662 if (gui.in_use) 4663 { 4664 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_LEFT], 4665 SBAR_LEFT, new_wp); 4666 gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_RIGHT], 4667 SBAR_RIGHT, new_wp); 4668 } 4669 #endif 4670 #ifdef FEAT_FOLDING 4671 foldInitWin(new_wp); 4672 #endif 4673 #ifdef FEAT_AUTOCMD 4674 unblock_autocmds(); 4675 #endif 4676 #ifdef FEAT_SEARCH_EXTRA 4677 new_wp->w_match_head = NULL; 4678 new_wp->w_next_match_id = 4; 4679 #endif 4680 return new_wp; 4681 } 4682 4683 #if defined(FEAT_WINDOWS) || defined(PROTO) 4684 4685 /* 4686 * Remove window 'wp' from the window list and free the structure. 4687 */ 4688 static void 4689 win_free(wp, tp) 4690 win_T *wp; 4691 tabpage_T *tp; /* tab page "win" is in, NULL for current */ 4692 { 4693 int i; 4694 buf_T *buf; 4695 wininfo_T *wip; 4696 4697 #ifdef FEAT_FOLDING 4698 clearFolding(wp); 4699 #endif 4700 4701 /* reduce the reference count to the argument list. */ 4702 alist_unlink(wp->w_alist); 4703 4704 #ifdef FEAT_AUTOCMD 4705 /* Don't execute autocommands while the window is halfway being deleted. 4706 * gui_mch_destroy_scrollbar() may trigger a FocusGained event. */ 4707 block_autocmds(); 4708 #endif 4709 4710 #ifdef FEAT_LUA 4711 lua_window_free(wp); 4712 #endif 4713 4714 #ifdef FEAT_MZSCHEME 4715 mzscheme_window_free(wp); 4716 #endif 4717 4718 #ifdef FEAT_PERL 4719 perl_win_free(wp); 4720 #endif 4721 4722 #ifdef FEAT_PYTHON 4723 python_window_free(wp); 4724 #endif 4725 4726 #ifdef FEAT_PYTHON3 4727 python3_window_free(wp); 4728 #endif 4729 4730 #ifdef FEAT_TCL 4731 tcl_window_free(wp); 4732 #endif 4733 4734 #ifdef FEAT_RUBY 4735 ruby_window_free(wp); 4736 #endif 4737 4738 clear_winopt(&wp->w_onebuf_opt); 4739 clear_winopt(&wp->w_allbuf_opt); 4740 4741 #ifdef FEAT_EVAL 4742 vars_clear(&wp->w_vars->dv_hashtab); /* free all w: variables */ 4743 hash_init(&wp->w_vars->dv_hashtab); 4744 unref_var_dict(wp->w_vars); 4745 #endif 4746 4747 if (prevwin == wp) 4748 prevwin = NULL; 4749 win_free_lsize(wp); 4750 4751 for (i = 0; i < wp->w_tagstacklen; ++i) 4752 vim_free(wp->w_tagstack[i].tagname); 4753 4754 vim_free(wp->w_localdir); 4755 4756 /* Remove the window from the b_wininfo lists, it may happen that the 4757 * freed memory is re-used for another window. */ 4758 for (buf = firstbuf; buf != NULL; buf = buf->b_next) 4759 for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) 4760 if (wip->wi_win == wp) 4761 wip->wi_win = NULL; 4762 4763 #ifdef FEAT_SEARCH_EXTRA 4764 clear_matches(wp); 4765 #endif 4766 4767 #ifdef FEAT_JUMPLIST 4768 free_jumplist(wp); 4769 #endif 4770 4771 #ifdef FEAT_QUICKFIX 4772 qf_free_all(wp); 4773 #endif 4774 4775 #ifdef FEAT_GUI 4776 if (gui.in_use) 4777 { 4778 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_LEFT]); 4779 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_RIGHT]); 4780 } 4781 #endif /* FEAT_GUI */ 4782 4783 #ifdef FEAT_SYN_HL 4784 vim_free(wp->w_p_cc_cols); 4785 #endif 4786 4787 #ifdef FEAT_AUTOCMD 4788 if (wp != aucmd_win) 4789 #endif 4790 win_remove(wp, tp); 4791 #ifdef FEAT_AUTOCMD 4792 if (autocmd_busy) 4793 { 4794 wp->w_next = au_pending_free_win; 4795 au_pending_free_win = wp; 4796 } 4797 else 4798 #endif 4799 vim_free(wp); 4800 4801 #ifdef FEAT_AUTOCMD 4802 unblock_autocmds(); 4803 #endif 4804 } 4805 4806 /* 4807 * Append window "wp" in the window list after window "after". 4808 */ 4809 void 4810 win_append(after, wp) 4811 win_T *after, *wp; 4812 { 4813 win_T *before; 4814 4815 if (after == NULL) /* after NULL is in front of the first */ 4816 before = firstwin; 4817 else 4818 before = after->w_next; 4819 4820 wp->w_next = before; 4821 wp->w_prev = after; 4822 if (after == NULL) 4823 firstwin = wp; 4824 else 4825 after->w_next = wp; 4826 if (before == NULL) 4827 lastwin = wp; 4828 else 4829 before->w_prev = wp; 4830 } 4831 4832 /* 4833 * Remove a window from the window list. 4834 */ 4835 void 4836 win_remove(wp, tp) 4837 win_T *wp; 4838 tabpage_T *tp; /* tab page "win" is in, NULL for current */ 4839 { 4840 if (wp->w_prev != NULL) 4841 wp->w_prev->w_next = wp->w_next; 4842 else if (tp == NULL) 4843 firstwin = wp->w_next; 4844 else 4845 tp->tp_firstwin = wp->w_next; 4846 if (wp->w_next != NULL) 4847 wp->w_next->w_prev = wp->w_prev; 4848 else if (tp == NULL) 4849 lastwin = wp->w_prev; 4850 else 4851 tp->tp_lastwin = wp->w_prev; 4852 } 4853 4854 /* 4855 * Append frame "frp" in a frame list after frame "after". 4856 */ 4857 static void 4858 frame_append(after, frp) 4859 frame_T *after, *frp; 4860 { 4861 frp->fr_next = after->fr_next; 4862 after->fr_next = frp; 4863 if (frp->fr_next != NULL) 4864 frp->fr_next->fr_prev = frp; 4865 frp->fr_prev = after; 4866 } 4867 4868 /* 4869 * Insert frame "frp" in a frame list before frame "before". 4870 */ 4871 static void 4872 frame_insert(before, frp) 4873 frame_T *before, *frp; 4874 { 4875 frp->fr_next = before; 4876 frp->fr_prev = before->fr_prev; 4877 before->fr_prev = frp; 4878 if (frp->fr_prev != NULL) 4879 frp->fr_prev->fr_next = frp; 4880 else 4881 frp->fr_parent->fr_child = frp; 4882 } 4883 4884 /* 4885 * Remove a frame from a frame list. 4886 */ 4887 static void 4888 frame_remove(frp) 4889 frame_T *frp; 4890 { 4891 if (frp->fr_prev != NULL) 4892 frp->fr_prev->fr_next = frp->fr_next; 4893 else 4894 frp->fr_parent->fr_child = frp->fr_next; 4895 if (frp->fr_next != NULL) 4896 frp->fr_next->fr_prev = frp->fr_prev; 4897 } 4898 4899 #endif /* FEAT_WINDOWS */ 4900 4901 /* 4902 * Allocate w_lines[] for window "wp". 4903 * Return FAIL for failure, OK for success. 4904 */ 4905 int 4906 win_alloc_lines(wp) 4907 win_T *wp; 4908 { 4909 wp->w_lines_valid = 0; 4910 wp->w_lines = (wline_T *)alloc_clear((unsigned)(Rows * sizeof(wline_T))); 4911 if (wp->w_lines == NULL) 4912 return FAIL; 4913 return OK; 4914 } 4915 4916 /* 4917 * free lsize arrays for a window 4918 */ 4919 void 4920 win_free_lsize(wp) 4921 win_T *wp; 4922 { 4923 /* TODO: why would wp be NULL here? */ 4924 if (wp != NULL) 4925 { 4926 vim_free(wp->w_lines); 4927 wp->w_lines = NULL; 4928 } 4929 } 4930 4931 /* 4932 * Called from win_new_shellsize() after Rows changed. 4933 * This only does the current tab page, others must be done when made active. 4934 */ 4935 void 4936 shell_new_rows() 4937 { 4938 int h = (int)ROWS_AVAIL; 4939 4940 if (firstwin == NULL) /* not initialized yet */ 4941 return; 4942 #ifdef FEAT_WINDOWS 4943 if (h < frame_minheight(topframe, NULL)) 4944 h = frame_minheight(topframe, NULL); 4945 4946 /* First try setting the heights of windows with 'winfixheight'. If 4947 * that doesn't result in the right height, forget about that option. */ 4948 frame_new_height(topframe, h, FALSE, TRUE); 4949 if (!frame_check_height(topframe, h)) 4950 frame_new_height(topframe, h, FALSE, FALSE); 4951 4952 (void)win_comp_pos(); /* recompute w_winrow and w_wincol */ 4953 #else 4954 if (h < 1) 4955 h = 1; 4956 win_new_height(firstwin, h); 4957 #endif 4958 compute_cmdrow(); 4959 #ifdef FEAT_WINDOWS 4960 curtab->tp_ch_used = p_ch; 4961 #endif 4962 4963 #if 0 4964 /* Disabled: don't want making the screen smaller make a window larger. */ 4965 if (p_ea) 4966 win_equal(curwin, FALSE, 'v'); 4967 #endif 4968 } 4969 4970 #if defined(FEAT_VERTSPLIT) || defined(PROTO) 4971 /* 4972 * Called from win_new_shellsize() after Columns changed. 4973 */ 4974 void 4975 shell_new_columns() 4976 { 4977 if (firstwin == NULL) /* not initialized yet */ 4978 return; 4979 4980 /* First try setting the widths of windows with 'winfixwidth'. If that 4981 * doesn't result in the right width, forget about that option. */ 4982 frame_new_width(topframe, (int)Columns, FALSE, TRUE); 4983 if (!frame_check_width(topframe, Columns)) 4984 frame_new_width(topframe, (int)Columns, FALSE, FALSE); 4985 4986 (void)win_comp_pos(); /* recompute w_winrow and w_wincol */ 4987 #if 0 4988 /* Disabled: don't want making the screen smaller make a window larger. */ 4989 if (p_ea) 4990 win_equal(curwin, FALSE, 'h'); 4991 #endif 4992 } 4993 #endif 4994 4995 #if defined(FEAT_CMDWIN) || defined(PROTO) 4996 /* 4997 * Save the size of all windows in "gap". 4998 */ 4999 void 5000 win_size_save(gap) 5001 garray_T *gap; 5002 5003 { 5004 win_T *wp; 5005 5006 ga_init2(gap, (int)sizeof(int), 1); 5007 if (ga_grow(gap, win_count() * 2) == OK) 5008 for (wp = firstwin; wp != NULL; wp = wp->w_next) 5009 { 5010 ((int *)gap->ga_data)[gap->ga_len++] = 5011 wp->w_width + wp->w_vsep_width; 5012 ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height; 5013 } 5014 } 5015 5016 /* 5017 * Restore window sizes, but only if the number of windows is still the same. 5018 * Does not free the growarray. 5019 */ 5020 void 5021 win_size_restore(gap) 5022 garray_T *gap; 5023 { 5024 win_T *wp; 5025 int i, j; 5026 5027 if (win_count() * 2 == gap->ga_len) 5028 { 5029 /* The order matters, because frames contain other frames, but it's 5030 * difficult to get right. The easy way out is to do it twice. */ 5031 for (j = 0; j < 2; ++j) 5032 { 5033 i = 0; 5034 for (wp = firstwin; wp != NULL; wp = wp->w_next) 5035 { 5036 frame_setwidth(wp->w_frame, ((int *)gap->ga_data)[i++]); 5037 win_setheight_win(((int *)gap->ga_data)[i++], wp); 5038 } 5039 } 5040 /* recompute the window positions */ 5041 (void)win_comp_pos(); 5042 } 5043 } 5044 #endif /* FEAT_CMDWIN */ 5045 5046 #if defined(FEAT_WINDOWS) || defined(PROTO) 5047 /* 5048 * Update the position for all windows, using the width and height of the 5049 * frames. 5050 * Returns the row just after the last window. 5051 */ 5052 int 5053 win_comp_pos() 5054 { 5055 int row = tabline_height(); 5056 int col = 0; 5057 5058 frame_comp_pos(topframe, &row, &col); 5059 return row; 5060 } 5061 5062 /* 5063 * Update the position of the windows in frame "topfrp", using the width and 5064 * height of the frames. 5065 * "*row" and "*col" are the top-left position of the frame. They are updated 5066 * to the bottom-right position plus one. 5067 */ 5068 static void 5069 frame_comp_pos(topfrp, row, col) 5070 frame_T *topfrp; 5071 int *row; 5072 int *col; 5073 { 5074 win_T *wp; 5075 frame_T *frp; 5076 #ifdef FEAT_VERTSPLIT 5077 int startcol; 5078 int startrow; 5079 #endif 5080 5081 wp = topfrp->fr_win; 5082 if (wp != NULL) 5083 { 5084 if (wp->w_winrow != *row 5085 #ifdef FEAT_VERTSPLIT 5086 || wp->w_wincol != *col 5087 #endif 5088 ) 5089 { 5090 /* position changed, redraw */ 5091 wp->w_winrow = *row; 5092 #ifdef FEAT_VERTSPLIT 5093 wp->w_wincol = *col; 5094 #endif 5095 redraw_win_later(wp, NOT_VALID); 5096 wp->w_redr_status = TRUE; 5097 } 5098 *row += wp->w_height + wp->w_status_height; 5099 #ifdef FEAT_VERTSPLIT 5100 *col += wp->w_width + wp->w_vsep_width; 5101 #endif 5102 } 5103 else 5104 { 5105 #ifdef FEAT_VERTSPLIT 5106 startrow = *row; 5107 startcol = *col; 5108 #endif 5109 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 5110 { 5111 #ifdef FEAT_VERTSPLIT 5112 if (topfrp->fr_layout == FR_ROW) 5113 *row = startrow; /* all frames are at the same row */ 5114 else 5115 *col = startcol; /* all frames are at the same col */ 5116 #endif 5117 frame_comp_pos(frp, row, col); 5118 } 5119 } 5120 } 5121 5122 #endif /* FEAT_WINDOWS */ 5123 5124 /* 5125 * Set current window height and take care of repositioning other windows to 5126 * fit around it. 5127 */ 5128 void 5129 win_setheight(height) 5130 int height; 5131 { 5132 win_setheight_win(height, curwin); 5133 } 5134 5135 /* 5136 * Set the window height of window "win" and take care of repositioning other 5137 * windows to fit around it. 5138 */ 5139 void 5140 win_setheight_win(height, win) 5141 int height; 5142 win_T *win; 5143 { 5144 int row; 5145 5146 if (win == curwin) 5147 { 5148 /* Always keep current window at least one line high, even when 5149 * 'winminheight' is zero. */ 5150 #ifdef FEAT_WINDOWS 5151 if (height < p_wmh) 5152 height = p_wmh; 5153 #endif 5154 if (height == 0) 5155 height = 1; 5156 } 5157 5158 #ifdef FEAT_WINDOWS 5159 frame_setheight(win->w_frame, height + win->w_status_height); 5160 5161 /* recompute the window positions */ 5162 row = win_comp_pos(); 5163 #else 5164 if (height > topframe->fr_height) 5165 height = topframe->fr_height; 5166 win->w_height = height; 5167 row = height; 5168 #endif 5169 5170 /* 5171 * If there is extra space created between the last window and the command 5172 * line, clear it. 5173 */ 5174 if (full_screen && msg_scrolled == 0 && row < cmdline_row) 5175 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5176 cmdline_row = row; 5177 msg_row = row; 5178 msg_col = 0; 5179 5180 redraw_all_later(NOT_VALID); 5181 } 5182 5183 #if defined(FEAT_WINDOWS) || defined(PROTO) 5184 5185 /* 5186 * Set the height of a frame to "height" and take care that all frames and 5187 * windows inside it are resized. Also resize frames on the left and right if 5188 * the are in the same FR_ROW frame. 5189 * 5190 * Strategy: 5191 * If the frame is part of a FR_COL frame, try fitting the frame in that 5192 * frame. If that doesn't work (the FR_COL frame is too small), recursively 5193 * go to containing frames to resize them and make room. 5194 * If the frame is part of a FR_ROW frame, all frames must be resized as well. 5195 * Check for the minimal height of the FR_ROW frame. 5196 * At the top level we can also use change the command line height. 5197 */ 5198 static void 5199 frame_setheight(curfrp, height) 5200 frame_T *curfrp; 5201 int height; 5202 { 5203 int room; /* total number of lines available */ 5204 int take; /* number of lines taken from other windows */ 5205 int room_cmdline; /* lines available from cmdline */ 5206 int run; 5207 frame_T *frp; 5208 int h; 5209 int room_reserved; 5210 5211 /* If the height already is the desired value, nothing to do. */ 5212 if (curfrp->fr_height == height) 5213 return; 5214 5215 if (curfrp->fr_parent == NULL) 5216 { 5217 /* topframe: can only change the command line */ 5218 if (height > ROWS_AVAIL) 5219 height = ROWS_AVAIL; 5220 if (height > 0) 5221 frame_new_height(curfrp, height, FALSE, FALSE); 5222 } 5223 else if (curfrp->fr_parent->fr_layout == FR_ROW) 5224 { 5225 /* Row of frames: Also need to resize frames left and right of this 5226 * one. First check for the minimal height of these. */ 5227 h = frame_minheight(curfrp->fr_parent, NULL); 5228 if (height < h) 5229 height = h; 5230 frame_setheight(curfrp->fr_parent, height); 5231 } 5232 else 5233 { 5234 /* 5235 * Column of frames: try to change only frames in this column. 5236 */ 5237 #ifdef FEAT_VERTSPLIT 5238 /* 5239 * Do this twice: 5240 * 1: compute room available, if it's not enough try resizing the 5241 * containing frame. 5242 * 2: compute the room available and adjust the height to it. 5243 * Try not to reduce the height of a window with 'winfixheight' set. 5244 */ 5245 for (run = 1; run <= 2; ++run) 5246 #else 5247 for (;;) 5248 #endif 5249 { 5250 room = 0; 5251 room_reserved = 0; 5252 for (frp = curfrp->fr_parent->fr_child; frp != NULL; 5253 frp = frp->fr_next) 5254 { 5255 if (frp != curfrp 5256 && frp->fr_win != NULL 5257 && frp->fr_win->w_p_wfh) 5258 room_reserved += frp->fr_height; 5259 room += frp->fr_height; 5260 if (frp != curfrp) 5261 room -= frame_minheight(frp, NULL); 5262 } 5263 #ifdef FEAT_VERTSPLIT 5264 if (curfrp->fr_width != Columns) 5265 room_cmdline = 0; 5266 else 5267 #endif 5268 { 5269 room_cmdline = Rows - p_ch - (lastwin->w_winrow 5270 + lastwin->w_height + lastwin->w_status_height); 5271 if (room_cmdline < 0) 5272 room_cmdline = 0; 5273 } 5274 5275 if (height <= room + room_cmdline) 5276 break; 5277 #ifdef FEAT_VERTSPLIT 5278 if (run == 2 || curfrp->fr_width == Columns) 5279 #endif 5280 { 5281 if (height > room + room_cmdline) 5282 height = room + room_cmdline; 5283 break; 5284 } 5285 #ifdef FEAT_VERTSPLIT 5286 frame_setheight(curfrp->fr_parent, height 5287 + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1); 5288 #endif 5289 /*NOTREACHED*/ 5290 } 5291 5292 /* 5293 * Compute the number of lines we will take from others frames (can be 5294 * negative!). 5295 */ 5296 take = height - curfrp->fr_height; 5297 5298 /* If there is not enough room, also reduce the height of a window 5299 * with 'winfixheight' set. */ 5300 if (height > room + room_cmdline - room_reserved) 5301 room_reserved = room + room_cmdline - height; 5302 /* If there is only a 'winfixheight' window and making the 5303 * window smaller, need to make the other window taller. */ 5304 if (take < 0 && room - curfrp->fr_height < room_reserved) 5305 room_reserved = 0; 5306 5307 if (take > 0 && room_cmdline > 0) 5308 { 5309 /* use lines from cmdline first */ 5310 if (take < room_cmdline) 5311 room_cmdline = take; 5312 take -= room_cmdline; 5313 topframe->fr_height += room_cmdline; 5314 } 5315 5316 /* 5317 * set the current frame to the new height 5318 */ 5319 frame_new_height(curfrp, height, FALSE, FALSE); 5320 5321 /* 5322 * First take lines from the frames after the current frame. If 5323 * that is not enough, takes lines from frames above the current 5324 * frame. 5325 */ 5326 for (run = 0; run < 2; ++run) 5327 { 5328 if (run == 0) 5329 frp = curfrp->fr_next; /* 1st run: start with next window */ 5330 else 5331 frp = curfrp->fr_prev; /* 2nd run: start with prev window */ 5332 while (frp != NULL && take != 0) 5333 { 5334 h = frame_minheight(frp, NULL); 5335 if (room_reserved > 0 5336 && frp->fr_win != NULL 5337 && frp->fr_win->w_p_wfh) 5338 { 5339 if (room_reserved >= frp->fr_height) 5340 room_reserved -= frp->fr_height; 5341 else 5342 { 5343 if (frp->fr_height - room_reserved > take) 5344 room_reserved = frp->fr_height - take; 5345 take -= frp->fr_height - room_reserved; 5346 frame_new_height(frp, room_reserved, FALSE, FALSE); 5347 room_reserved = 0; 5348 } 5349 } 5350 else 5351 { 5352 if (frp->fr_height - take < h) 5353 { 5354 take -= frp->fr_height - h; 5355 frame_new_height(frp, h, FALSE, FALSE); 5356 } 5357 else 5358 { 5359 frame_new_height(frp, frp->fr_height - take, 5360 FALSE, FALSE); 5361 take = 0; 5362 } 5363 } 5364 if (run == 0) 5365 frp = frp->fr_next; 5366 else 5367 frp = frp->fr_prev; 5368 } 5369 } 5370 } 5371 } 5372 5373 #if defined(FEAT_VERTSPLIT) || defined(PROTO) 5374 /* 5375 * Set current window width and take care of repositioning other windows to 5376 * fit around it. 5377 */ 5378 void 5379 win_setwidth(width) 5380 int width; 5381 { 5382 win_setwidth_win(width, curwin); 5383 } 5384 5385 void 5386 win_setwidth_win(width, wp) 5387 int width; 5388 win_T *wp; 5389 { 5390 /* Always keep current window at least one column wide, even when 5391 * 'winminwidth' is zero. */ 5392 if (wp == curwin) 5393 { 5394 if (width < p_wmw) 5395 width = p_wmw; 5396 if (width == 0) 5397 width = 1; 5398 } 5399 5400 frame_setwidth(wp->w_frame, width + wp->w_vsep_width); 5401 5402 /* recompute the window positions */ 5403 (void)win_comp_pos(); 5404 5405 redraw_all_later(NOT_VALID); 5406 } 5407 5408 /* 5409 * Set the width of a frame to "width" and take care that all frames and 5410 * windows inside it are resized. Also resize frames above and below if the 5411 * are in the same FR_ROW frame. 5412 * 5413 * Strategy is similar to frame_setheight(). 5414 */ 5415 static void 5416 frame_setwidth(curfrp, width) 5417 frame_T *curfrp; 5418 int width; 5419 { 5420 int room; /* total number of lines available */ 5421 int take; /* number of lines taken from other windows */ 5422 int run; 5423 frame_T *frp; 5424 int w; 5425 int room_reserved; 5426 5427 /* If the width already is the desired value, nothing to do. */ 5428 if (curfrp->fr_width == width) 5429 return; 5430 5431 if (curfrp->fr_parent == NULL) 5432 /* topframe: can't change width */ 5433 return; 5434 5435 if (curfrp->fr_parent->fr_layout == FR_COL) 5436 { 5437 /* Column of frames: Also need to resize frames above and below of 5438 * this one. First check for the minimal width of these. */ 5439 w = frame_minwidth(curfrp->fr_parent, NULL); 5440 if (width < w) 5441 width = w; 5442 frame_setwidth(curfrp->fr_parent, width); 5443 } 5444 else 5445 { 5446 /* 5447 * Row of frames: try to change only frames in this row. 5448 * 5449 * Do this twice: 5450 * 1: compute room available, if it's not enough try resizing the 5451 * containing frame. 5452 * 2: compute the room available and adjust the width to it. 5453 */ 5454 for (run = 1; run <= 2; ++run) 5455 { 5456 room = 0; 5457 room_reserved = 0; 5458 for (frp = curfrp->fr_parent->fr_child; frp != NULL; 5459 frp = frp->fr_next) 5460 { 5461 if (frp != curfrp 5462 && frp->fr_win != NULL 5463 && frp->fr_win->w_p_wfw) 5464 room_reserved += frp->fr_width; 5465 room += frp->fr_width; 5466 if (frp != curfrp) 5467 room -= frame_minwidth(frp, NULL); 5468 } 5469 5470 if (width <= room) 5471 break; 5472 if (run == 2 || curfrp->fr_height >= ROWS_AVAIL) 5473 { 5474 if (width > room) 5475 width = room; 5476 break; 5477 } 5478 frame_setwidth(curfrp->fr_parent, width 5479 + frame_minwidth(curfrp->fr_parent, NOWIN) - (int)p_wmw - 1); 5480 } 5481 5482 /* 5483 * Compute the number of lines we will take from others frames (can be 5484 * negative!). 5485 */ 5486 take = width - curfrp->fr_width; 5487 5488 /* If there is not enough room, also reduce the width of a window 5489 * with 'winfixwidth' set. */ 5490 if (width > room - room_reserved) 5491 room_reserved = room - width; 5492 /* If there is only a 'winfixwidth' window and making the 5493 * window smaller, need to make the other window narrower. */ 5494 if (take < 0 && room - curfrp->fr_width < room_reserved) 5495 room_reserved = 0; 5496 5497 /* 5498 * set the current frame to the new width 5499 */ 5500 frame_new_width(curfrp, width, FALSE, FALSE); 5501 5502 /* 5503 * First take lines from the frames right of the current frame. If 5504 * that is not enough, takes lines from frames left of the current 5505 * frame. 5506 */ 5507 for (run = 0; run < 2; ++run) 5508 { 5509 if (run == 0) 5510 frp = curfrp->fr_next; /* 1st run: start with next window */ 5511 else 5512 frp = curfrp->fr_prev; /* 2nd run: start with prev window */ 5513 while (frp != NULL && take != 0) 5514 { 5515 w = frame_minwidth(frp, NULL); 5516 if (room_reserved > 0 5517 && frp->fr_win != NULL 5518 && frp->fr_win->w_p_wfw) 5519 { 5520 if (room_reserved >= frp->fr_width) 5521 room_reserved -= frp->fr_width; 5522 else 5523 { 5524 if (frp->fr_width - room_reserved > take) 5525 room_reserved = frp->fr_width - take; 5526 take -= frp->fr_width - room_reserved; 5527 frame_new_width(frp, room_reserved, FALSE, FALSE); 5528 room_reserved = 0; 5529 } 5530 } 5531 else 5532 { 5533 if (frp->fr_width - take < w) 5534 { 5535 take -= frp->fr_width - w; 5536 frame_new_width(frp, w, FALSE, FALSE); 5537 } 5538 else 5539 { 5540 frame_new_width(frp, frp->fr_width - take, 5541 FALSE, FALSE); 5542 take = 0; 5543 } 5544 } 5545 if (run == 0) 5546 frp = frp->fr_next; 5547 else 5548 frp = frp->fr_prev; 5549 } 5550 } 5551 } 5552 } 5553 #endif /* FEAT_VERTSPLIT */ 5554 5555 /* 5556 * Check 'winminheight' for a valid value. 5557 */ 5558 void 5559 win_setminheight() 5560 { 5561 int room; 5562 int first = TRUE; 5563 win_T *wp; 5564 5565 /* loop until there is a 'winminheight' that is possible */ 5566 while (p_wmh > 0) 5567 { 5568 /* TODO: handle vertical splits */ 5569 room = -p_wh; 5570 for (wp = firstwin; wp != NULL; wp = wp->w_next) 5571 room += wp->w_height - p_wmh; 5572 if (room >= 0) 5573 break; 5574 --p_wmh; 5575 if (first) 5576 { 5577 EMSG(_(e_noroom)); 5578 first = FALSE; 5579 } 5580 } 5581 } 5582 5583 #ifdef FEAT_MOUSE 5584 5585 /* 5586 * Status line of dragwin is dragged "offset" lines down (negative is up). 5587 */ 5588 void 5589 win_drag_status_line(dragwin, offset) 5590 win_T *dragwin; 5591 int offset; 5592 { 5593 frame_T *curfr; 5594 frame_T *fr; 5595 int room; 5596 int row; 5597 int up; /* if TRUE, drag status line up, otherwise down */ 5598 int n; 5599 5600 fr = dragwin->w_frame; 5601 curfr = fr; 5602 if (fr != topframe) /* more than one window */ 5603 { 5604 fr = fr->fr_parent; 5605 /* When the parent frame is not a column of frames, its parent should 5606 * be. */ 5607 if (fr->fr_layout != FR_COL) 5608 { 5609 curfr = fr; 5610 if (fr != topframe) /* only a row of windows, may drag statusline */ 5611 fr = fr->fr_parent; 5612 } 5613 } 5614 5615 /* If this is the last frame in a column, may want to resize the parent 5616 * frame instead (go two up to skip a row of frames). */ 5617 while (curfr != topframe && curfr->fr_next == NULL) 5618 { 5619 if (fr != topframe) 5620 fr = fr->fr_parent; 5621 curfr = fr; 5622 if (fr != topframe) 5623 fr = fr->fr_parent; 5624 } 5625 5626 if (offset < 0) /* drag up */ 5627 { 5628 up = TRUE; 5629 offset = -offset; 5630 /* sum up the room of the current frame and above it */ 5631 if (fr == curfr) 5632 { 5633 /* only one window */ 5634 room = fr->fr_height - frame_minheight(fr, NULL); 5635 } 5636 else 5637 { 5638 room = 0; 5639 for (fr = fr->fr_child; ; fr = fr->fr_next) 5640 { 5641 room += fr->fr_height - frame_minheight(fr, NULL); 5642 if (fr == curfr) 5643 break; 5644 } 5645 } 5646 fr = curfr->fr_next; /* put fr at frame that grows */ 5647 } 5648 else /* drag down */ 5649 { 5650 up = FALSE; 5651 /* 5652 * Only dragging the last status line can reduce p_ch. 5653 */ 5654 room = Rows - cmdline_row; 5655 if (curfr->fr_next == NULL) 5656 room -= 1; 5657 else 5658 room -= p_ch; 5659 if (room < 0) 5660 room = 0; 5661 /* sum up the room of frames below of the current one */ 5662 for (fr = curfr->fr_next; fr != NULL; fr = fr->fr_next) 5663 room += fr->fr_height - frame_minheight(fr, NULL); 5664 fr = curfr; /* put fr at window that grows */ 5665 } 5666 5667 if (room < offset) /* Not enough room */ 5668 offset = room; /* Move as far as we can */ 5669 if (offset <= 0) 5670 return; 5671 5672 /* 5673 * Grow frame fr by "offset" lines. 5674 * Doesn't happen when dragging the last status line up. 5675 */ 5676 if (fr != NULL) 5677 frame_new_height(fr, fr->fr_height + offset, up, FALSE); 5678 5679 if (up) 5680 fr = curfr; /* current frame gets smaller */ 5681 else 5682 fr = curfr->fr_next; /* next frame gets smaller */ 5683 5684 /* 5685 * Now make the other frames smaller. 5686 */ 5687 while (fr != NULL && offset > 0) 5688 { 5689 n = frame_minheight(fr, NULL); 5690 if (fr->fr_height - offset <= n) 5691 { 5692 offset -= fr->fr_height - n; 5693 frame_new_height(fr, n, !up, FALSE); 5694 } 5695 else 5696 { 5697 frame_new_height(fr, fr->fr_height - offset, !up, FALSE); 5698 break; 5699 } 5700 if (up) 5701 fr = fr->fr_prev; 5702 else 5703 fr = fr->fr_next; 5704 } 5705 row = win_comp_pos(); 5706 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 5707 cmdline_row = row; 5708 p_ch = Rows - cmdline_row; 5709 if (p_ch < 1) 5710 p_ch = 1; 5711 curtab->tp_ch_used = p_ch; 5712 redraw_all_later(SOME_VALID); 5713 showmode(); 5714 } 5715 5716 #ifdef FEAT_VERTSPLIT 5717 /* 5718 * Separator line of dragwin is dragged "offset" lines right (negative is left). 5719 */ 5720 void 5721 win_drag_vsep_line(dragwin, offset) 5722 win_T *dragwin; 5723 int offset; 5724 { 5725 frame_T *curfr; 5726 frame_T *fr; 5727 int room; 5728 int left; /* if TRUE, drag separator line left, otherwise right */ 5729 int n; 5730 5731 fr = dragwin->w_frame; 5732 if (fr == topframe) /* only one window (cannot happen?) */ 5733 return; 5734 curfr = fr; 5735 fr = fr->fr_parent; 5736 /* When the parent frame is not a row of frames, its parent should be. */ 5737 if (fr->fr_layout != FR_ROW) 5738 { 5739 if (fr == topframe) /* only a column of windows (cannot happen?) */ 5740 return; 5741 curfr = fr; 5742 fr = fr->fr_parent; 5743 } 5744 5745 /* If this is the last frame in a row, may want to resize a parent 5746 * frame instead. */ 5747 while (curfr->fr_next == NULL) 5748 { 5749 if (fr == topframe) 5750 break; 5751 curfr = fr; 5752 fr = fr->fr_parent; 5753 if (fr != topframe) 5754 { 5755 curfr = fr; 5756 fr = fr->fr_parent; 5757 } 5758 } 5759 5760 if (offset < 0) /* drag left */ 5761 { 5762 left = TRUE; 5763 offset = -offset; 5764 /* sum up the room of the current frame and left of it */ 5765 room = 0; 5766 for (fr = fr->fr_child; ; fr = fr->fr_next) 5767 { 5768 room += fr->fr_width - frame_minwidth(fr, NULL); 5769 if (fr == curfr) 5770 break; 5771 } 5772 fr = curfr->fr_next; /* put fr at frame that grows */ 5773 } 5774 else /* drag right */ 5775 { 5776 left = FALSE; 5777 /* sum up the room of frames right of the current one */ 5778 room = 0; 5779 for (fr = curfr->fr_next; fr != NULL; fr = fr->fr_next) 5780 room += fr->fr_width - frame_minwidth(fr, NULL); 5781 fr = curfr; /* put fr at window that grows */ 5782 } 5783 5784 if (room < offset) /* Not enough room */ 5785 offset = room; /* Move as far as we can */ 5786 if (offset <= 0) /* No room at all, quit. */ 5787 return; 5788 5789 /* grow frame fr by offset lines */ 5790 frame_new_width(fr, fr->fr_width + offset, left, FALSE); 5791 5792 /* shrink other frames: current and at the left or at the right */ 5793 if (left) 5794 fr = curfr; /* current frame gets smaller */ 5795 else 5796 fr = curfr->fr_next; /* next frame gets smaller */ 5797 5798 while (fr != NULL && offset > 0) 5799 { 5800 n = frame_minwidth(fr, NULL); 5801 if (fr->fr_width - offset <= n) 5802 { 5803 offset -= fr->fr_width - n; 5804 frame_new_width(fr, n, !left, FALSE); 5805 } 5806 else 5807 { 5808 frame_new_width(fr, fr->fr_width - offset, !left, FALSE); 5809 break; 5810 } 5811 if (left) 5812 fr = fr->fr_prev; 5813 else 5814 fr = fr->fr_next; 5815 } 5816 (void)win_comp_pos(); 5817 redraw_all_later(NOT_VALID); 5818 } 5819 #endif /* FEAT_VERTSPLIT */ 5820 #endif /* FEAT_MOUSE */ 5821 5822 #endif /* FEAT_WINDOWS */ 5823 5824 #define FRACTION_MULT 16384L 5825 5826 /* 5827 * Set wp->w_fraction for the current w_wrow and w_height. 5828 */ 5829 static void 5830 set_fraction(wp) 5831 win_T *wp; 5832 { 5833 wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT 5834 + wp->w_height / 2) / (long)wp->w_height; 5835 } 5836 5837 /* 5838 * Set the height of a window. 5839 * This takes care of the things inside the window, not what happens to the 5840 * window position, the frame or to other windows. 5841 */ 5842 void 5843 win_new_height(wp, height) 5844 win_T *wp; 5845 int height; 5846 { 5847 linenr_T lnum; 5848 int sline, line_size; 5849 int prev_height = wp->w_height; 5850 5851 /* Don't want a negative height. Happens when splitting a tiny window. 5852 * Will equalize heights soon to fix it. */ 5853 if (height < 0) 5854 height = 0; 5855 if (wp->w_height == height) 5856 return; /* nothing to do */ 5857 5858 if (wp->w_height > 0) 5859 { 5860 if (wp == curwin) 5861 /* w_wrow needs to be valid. When setting 'laststatus' this may 5862 * call win_new_height() recursively. */ 5863 validate_cursor(); 5864 if (wp->w_height != prev_height) 5865 return; /* Recursive call already changed the size, bail out here 5866 to avoid the following to mess things up. */ 5867 if (wp->w_wrow != wp->w_prev_fraction_row) 5868 set_fraction(wp); 5869 } 5870 5871 wp->w_height = height; 5872 wp->w_skipcol = 0; 5873 5874 /* Don't change w_topline when height is zero. Don't set w_topline when 5875 * 'scrollbind' is set and this isn't the current window. */ 5876 if (height > 0 5877 #ifdef FEAT_SCROLLBIND 5878 && (!wp->w_p_scb || wp == curwin) 5879 #endif 5880 ) 5881 { 5882 /* 5883 * Find a value for w_topline that shows the cursor at the same 5884 * relative position in the window as before (more or less). 5885 */ 5886 lnum = wp->w_cursor.lnum; 5887 if (lnum < 1) /* can happen when starting up */ 5888 lnum = 1; 5889 wp->w_wrow = ((long)wp->w_fraction * (long)height - 1L 5890 + FRACTION_MULT / 2) / FRACTION_MULT; 5891 line_size = plines_win_col(wp, lnum, (long)(wp->w_cursor.col)) - 1; 5892 sline = wp->w_wrow - line_size; 5893 5894 if (sline >= 0) 5895 { 5896 /* Make sure the whole cursor line is visible, if possible. */ 5897 int rows = plines_win(wp, lnum, FALSE); 5898 5899 if (sline > wp->w_height - rows) 5900 { 5901 sline = wp->w_height - rows; 5902 wp->w_wrow -= rows - line_size; 5903 } 5904 } 5905 5906 if (sline < 0) 5907 { 5908 /* 5909 * Cursor line would go off top of screen if w_wrow was this high. 5910 * Make cursor line the first line in the window. If not enough 5911 * room use w_skipcol; 5912 */ 5913 wp->w_wrow = line_size; 5914 if (wp->w_wrow >= wp->w_height 5915 && (W_WIDTH(wp) - win_col_off(wp)) > 0) 5916 { 5917 wp->w_skipcol += W_WIDTH(wp) - win_col_off(wp); 5918 --wp->w_wrow; 5919 while (wp->w_wrow >= wp->w_height) 5920 { 5921 wp->w_skipcol += W_WIDTH(wp) - win_col_off(wp) 5922 + win_col_off2(wp); 5923 --wp->w_wrow; 5924 } 5925 } 5926 set_topline(wp, lnum); 5927 } 5928 else if (sline > 0) 5929 { 5930 while (sline > 0 && lnum > 1) 5931 { 5932 #ifdef FEAT_FOLDING 5933 hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); 5934 if (lnum == 1) 5935 { 5936 /* first line in buffer is folded */ 5937 line_size = 1; 5938 --sline; 5939 break; 5940 } 5941 #endif 5942 --lnum; 5943 #ifdef FEAT_DIFF 5944 if (lnum == wp->w_topline) 5945 line_size = plines_win_nofill(wp, lnum, TRUE) 5946 + wp->w_topfill; 5947 else 5948 #endif 5949 line_size = plines_win(wp, lnum, TRUE); 5950 sline -= line_size; 5951 } 5952 5953 if (sline < 0) 5954 { 5955 /* 5956 * Line we want at top would go off top of screen. Use next 5957 * line instead. 5958 */ 5959 #ifdef FEAT_FOLDING 5960 hasFoldingWin(wp, lnum, NULL, &lnum, TRUE, NULL); 5961 #endif 5962 lnum++; 5963 wp->w_wrow -= line_size + sline; 5964 } 5965 else if (sline > 0) 5966 { 5967 /* First line of file reached, use that as topline. */ 5968 lnum = 1; 5969 wp->w_wrow -= sline; 5970 } 5971 5972 set_topline(wp, lnum); 5973 } 5974 } 5975 5976 if (wp == curwin) 5977 { 5978 if (p_so) 5979 update_topline(); 5980 curs_columns(FALSE); /* validate w_wrow */ 5981 } 5982 if (prev_height > 0) 5983 wp->w_prev_fraction_row = wp->w_wrow; 5984 5985 win_comp_scroll(wp); 5986 redraw_win_later(wp, SOME_VALID); 5987 #ifdef FEAT_WINDOWS 5988 wp->w_redr_status = TRUE; 5989 #endif 5990 invalidate_botline_win(wp); 5991 } 5992 5993 #ifdef FEAT_VERTSPLIT 5994 /* 5995 * Set the width of a window. 5996 */ 5997 void 5998 win_new_width(wp, width) 5999 win_T *wp; 6000 int width; 6001 { 6002 wp->w_width = width; 6003 wp->w_lines_valid = 0; 6004 changed_line_abv_curs_win(wp); 6005 invalidate_botline_win(wp); 6006 if (wp == curwin) 6007 { 6008 update_topline(); 6009 curs_columns(TRUE); /* validate w_wrow */ 6010 } 6011 redraw_win_later(wp, NOT_VALID); 6012 wp->w_redr_status = TRUE; 6013 } 6014 #endif 6015 6016 void 6017 win_comp_scroll(wp) 6018 win_T *wp; 6019 { 6020 wp->w_p_scr = ((unsigned)wp->w_height >> 1); 6021 if (wp->w_p_scr == 0) 6022 wp->w_p_scr = 1; 6023 } 6024 6025 /* 6026 * command_height: called whenever p_ch has been changed 6027 */ 6028 void 6029 command_height() 6030 { 6031 #ifdef FEAT_WINDOWS 6032 int h; 6033 frame_T *frp; 6034 int old_p_ch = curtab->tp_ch_used; 6035 6036 /* Use the value of p_ch that we remembered. This is needed for when the 6037 * GUI starts up, we can't be sure in what order things happen. And when 6038 * p_ch was changed in another tab page. */ 6039 curtab->tp_ch_used = p_ch; 6040 6041 /* Find bottom frame with width of screen. */ 6042 frp = lastwin->w_frame; 6043 # ifdef FEAT_VERTSPLIT 6044 while (frp->fr_width != Columns && frp->fr_parent != NULL) 6045 frp = frp->fr_parent; 6046 # endif 6047 6048 /* Avoid changing the height of a window with 'winfixheight' set. */ 6049 while (frp->fr_prev != NULL && frp->fr_layout == FR_LEAF 6050 && frp->fr_win->w_p_wfh) 6051 frp = frp->fr_prev; 6052 6053 if (starting != NO_SCREEN) 6054 { 6055 cmdline_row = Rows - p_ch; 6056 6057 if (p_ch > old_p_ch) /* p_ch got bigger */ 6058 { 6059 while (p_ch > old_p_ch) 6060 { 6061 if (frp == NULL) 6062 { 6063 EMSG(_(e_noroom)); 6064 p_ch = old_p_ch; 6065 curtab->tp_ch_used = p_ch; 6066 cmdline_row = Rows - p_ch; 6067 break; 6068 } 6069 h = frp->fr_height - frame_minheight(frp, NULL); 6070 if (h > p_ch - old_p_ch) 6071 h = p_ch - old_p_ch; 6072 old_p_ch += h; 6073 frame_add_height(frp, -h); 6074 frp = frp->fr_prev; 6075 } 6076 6077 /* Recompute window positions. */ 6078 (void)win_comp_pos(); 6079 6080 /* clear the lines added to cmdline */ 6081 if (full_screen) 6082 screen_fill((int)(cmdline_row), (int)Rows, 0, 6083 (int)Columns, ' ', ' ', 0); 6084 msg_row = cmdline_row; 6085 redraw_cmdline = TRUE; 6086 return; 6087 } 6088 6089 if (msg_row < cmdline_row) 6090 msg_row = cmdline_row; 6091 redraw_cmdline = TRUE; 6092 } 6093 frame_add_height(frp, (int)(old_p_ch - p_ch)); 6094 6095 /* Recompute window positions. */ 6096 if (frp != lastwin->w_frame) 6097 (void)win_comp_pos(); 6098 #else 6099 cmdline_row = Rows - p_ch; 6100 win_setheight(cmdline_row); 6101 #endif 6102 } 6103 6104 #if defined(FEAT_WINDOWS) || defined(PROTO) 6105 /* 6106 * Resize frame "frp" to be "n" lines higher (negative for less high). 6107 * Also resize the frames it is contained in. 6108 */ 6109 static void 6110 frame_add_height(frp, n) 6111 frame_T *frp; 6112 int n; 6113 { 6114 frame_new_height(frp, frp->fr_height + n, FALSE, FALSE); 6115 for (;;) 6116 { 6117 frp = frp->fr_parent; 6118 if (frp == NULL) 6119 break; 6120 frp->fr_height += n; 6121 } 6122 } 6123 6124 /* 6125 * Add or remove a status line for the bottom window(s), according to the 6126 * value of 'laststatus'. 6127 */ 6128 void 6129 last_status(morewin) 6130 int morewin; /* pretend there are two or more windows */ 6131 { 6132 /* Don't make a difference between horizontal or vertical split. */ 6133 last_status_rec(topframe, (p_ls == 2 6134 || (p_ls == 1 && (morewin || lastwin != firstwin)))); 6135 } 6136 6137 static void 6138 last_status_rec(fr, statusline) 6139 frame_T *fr; 6140 int statusline; 6141 { 6142 frame_T *fp; 6143 win_T *wp; 6144 6145 if (fr->fr_layout == FR_LEAF) 6146 { 6147 wp = fr->fr_win; 6148 if (wp->w_status_height != 0 && !statusline) 6149 { 6150 /* remove status line */ 6151 win_new_height(wp, wp->w_height + 1); 6152 wp->w_status_height = 0; 6153 comp_col(); 6154 } 6155 else if (wp->w_status_height == 0 && statusline) 6156 { 6157 /* Find a frame to take a line from. */ 6158 fp = fr; 6159 while (fp->fr_height <= frame_minheight(fp, NULL)) 6160 { 6161 if (fp == topframe) 6162 { 6163 EMSG(_(e_noroom)); 6164 return; 6165 } 6166 /* In a column of frames: go to frame above. If already at 6167 * the top or in a row of frames: go to parent. */ 6168 if (fp->fr_parent->fr_layout == FR_COL && fp->fr_prev != NULL) 6169 fp = fp->fr_prev; 6170 else 6171 fp = fp->fr_parent; 6172 } 6173 wp->w_status_height = 1; 6174 if (fp != fr) 6175 { 6176 frame_new_height(fp, fp->fr_height - 1, FALSE, FALSE); 6177 frame_fix_height(wp); 6178 (void)win_comp_pos(); 6179 } 6180 else 6181 win_new_height(wp, wp->w_height - 1); 6182 comp_col(); 6183 redraw_all_later(SOME_VALID); 6184 } 6185 } 6186 #ifdef FEAT_VERTSPLIT 6187 else if (fr->fr_layout == FR_ROW) 6188 { 6189 /* vertically split windows, set status line for each one */ 6190 for (fp = fr->fr_child; fp != NULL; fp = fp->fr_next) 6191 last_status_rec(fp, statusline); 6192 } 6193 #endif 6194 else 6195 { 6196 /* horizontally split window, set status line for last one */ 6197 for (fp = fr->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 6198 ; 6199 last_status_rec(fp, statusline); 6200 } 6201 } 6202 6203 /* 6204 * Return the number of lines used by the tab page line. 6205 */ 6206 int 6207 tabline_height() 6208 { 6209 #ifdef FEAT_GUI_TABLINE 6210 /* When the GUI has the tabline then this always returns zero. */ 6211 if (gui_use_tabline()) 6212 return 0; 6213 #endif 6214 switch (p_stal) 6215 { 6216 case 0: return 0; 6217 case 1: return (first_tabpage->tp_next == NULL) ? 0 : 1; 6218 } 6219 return 1; 6220 } 6221 6222 #endif /* FEAT_WINDOWS */ 6223 6224 #if defined(FEAT_SEARCHPATH) || defined(PROTO) 6225 /* 6226 * Get the file name at the cursor. 6227 * If Visual mode is active, use the selected text if it's in one line. 6228 * Returns the name in allocated memory, NULL for failure. 6229 */ 6230 char_u * 6231 grab_file_name(count, file_lnum) 6232 long count; 6233 linenr_T *file_lnum; 6234 { 6235 int options = FNAME_MESS|FNAME_EXP|FNAME_REL|FNAME_UNESC; 6236 6237 if (VIsual_active) 6238 { 6239 int len; 6240 char_u *ptr; 6241 6242 if (get_visual_text(NULL, &ptr, &len) == FAIL) 6243 return NULL; 6244 return find_file_name_in_path(ptr, len, options, 6245 count, curbuf->b_ffname); 6246 } 6247 return file_name_at_cursor(options | FNAME_HYP, count, file_lnum); 6248 6249 } 6250 6251 /* 6252 * Return the file name under or after the cursor. 6253 * 6254 * The 'path' option is searched if the file name is not absolute. 6255 * The string returned has been alloc'ed and should be freed by the caller. 6256 * NULL is returned if the file name or file is not found. 6257 * 6258 * options: 6259 * FNAME_MESS give error messages 6260 * FNAME_EXP expand to path 6261 * FNAME_HYP check for hypertext link 6262 * FNAME_INCL apply "includeexpr" 6263 */ 6264 char_u * 6265 file_name_at_cursor(options, count, file_lnum) 6266 int options; 6267 long count; 6268 linenr_T *file_lnum; 6269 { 6270 return file_name_in_line(ml_get_curline(), 6271 curwin->w_cursor.col, options, count, curbuf->b_ffname, 6272 file_lnum); 6273 } 6274 6275 /* 6276 * Return the name of the file under or after ptr[col]. 6277 * Otherwise like file_name_at_cursor(). 6278 */ 6279 char_u * 6280 file_name_in_line(line, col, options, count, rel_fname, file_lnum) 6281 char_u *line; 6282 int col; 6283 int options; 6284 long count; 6285 char_u *rel_fname; /* file we are searching relative to */ 6286 linenr_T *file_lnum; /* line number after the file name */ 6287 { 6288 char_u *ptr; 6289 int len; 6290 6291 /* 6292 * search forward for what could be the start of a file name 6293 */ 6294 ptr = line + col; 6295 while (*ptr != NUL && !vim_isfilec(*ptr)) 6296 mb_ptr_adv(ptr); 6297 if (*ptr == NUL) /* nothing found */ 6298 { 6299 if (options & FNAME_MESS) 6300 EMSG(_("E446: No file name under cursor")); 6301 return NULL; 6302 } 6303 6304 /* 6305 * Search backward for first char of the file name. 6306 * Go one char back to ":" before "//" even when ':' is not in 'isfname'. 6307 */ 6308 while (ptr > line) 6309 { 6310 #ifdef FEAT_MBYTE 6311 if (has_mbyte && (len = (*mb_head_off)(line, ptr - 1)) > 0) 6312 ptr -= len + 1; 6313 else 6314 #endif 6315 if (vim_isfilec(ptr[-1]) 6316 || ((options & FNAME_HYP) && path_is_url(ptr - 1))) 6317 --ptr; 6318 else 6319 break; 6320 } 6321 6322 /* 6323 * Search forward for the last char of the file name. 6324 * Also allow "://" when ':' is not in 'isfname'. 6325 */ 6326 len = 0; 6327 while (vim_isfilec(ptr[len]) || (ptr[len] == '\\' && ptr[len + 1] == ' ') 6328 || ((options & FNAME_HYP) && path_is_url(ptr + len))) 6329 { 6330 if (ptr[len] == '\\') 6331 /* Skip over the "\" in "\ ". */ 6332 ++len; 6333 #ifdef FEAT_MBYTE 6334 if (has_mbyte) 6335 len += (*mb_ptr2len)(ptr + len); 6336 else 6337 #endif 6338 ++len; 6339 } 6340 6341 /* 6342 * If there is trailing punctuation, remove it. 6343 * But don't remove "..", could be a directory name. 6344 */ 6345 if (len > 2 && vim_strchr((char_u *)".,:;!", ptr[len - 1]) != NULL 6346 && ptr[len - 2] != '.') 6347 --len; 6348 6349 if (file_lnum != NULL) 6350 { 6351 char_u *p; 6352 6353 /* Get the number after the file name and a separator character */ 6354 p = ptr + len; 6355 p = skipwhite(p); 6356 if (*p != NUL) 6357 { 6358 if (!isdigit(*p)) 6359 ++p; /* skip the separator */ 6360 p = skipwhite(p); 6361 if (isdigit(*p)) 6362 *file_lnum = (int)getdigits(&p); 6363 } 6364 } 6365 6366 return find_file_name_in_path(ptr, len, options, count, rel_fname); 6367 } 6368 6369 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6370 static char_u *eval_includeexpr __ARGS((char_u *ptr, int len)); 6371 6372 static char_u * 6373 eval_includeexpr(ptr, len) 6374 char_u *ptr; 6375 int len; 6376 { 6377 char_u *res; 6378 6379 set_vim_var_string(VV_FNAME, ptr, len); 6380 res = eval_to_string_safe(curbuf->b_p_inex, NULL, 6381 was_set_insecurely((char_u *)"includeexpr", OPT_LOCAL)); 6382 set_vim_var_string(VV_FNAME, NULL, 0); 6383 return res; 6384 } 6385 #endif 6386 6387 /* 6388 * Return the name of the file ptr[len] in 'path'. 6389 * Otherwise like file_name_at_cursor(). 6390 */ 6391 char_u * 6392 find_file_name_in_path(ptr, len, options, count, rel_fname) 6393 char_u *ptr; 6394 int len; 6395 int options; 6396 long count; 6397 char_u *rel_fname; /* file we are searching relative to */ 6398 { 6399 char_u *file_name; 6400 int c; 6401 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6402 char_u *tofree = NULL; 6403 6404 if ((options & FNAME_INCL) && *curbuf->b_p_inex != NUL) 6405 { 6406 tofree = eval_includeexpr(ptr, len); 6407 if (tofree != NULL) 6408 { 6409 ptr = tofree; 6410 len = (int)STRLEN(ptr); 6411 } 6412 } 6413 # endif 6414 6415 if (options & FNAME_EXP) 6416 { 6417 file_name = find_file_in_path(ptr, len, options & ~FNAME_MESS, 6418 TRUE, rel_fname); 6419 6420 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6421 /* 6422 * If the file could not be found in a normal way, try applying 6423 * 'includeexpr' (unless done already). 6424 */ 6425 if (file_name == NULL 6426 && !(options & FNAME_INCL) && *curbuf->b_p_inex != NUL) 6427 { 6428 tofree = eval_includeexpr(ptr, len); 6429 if (tofree != NULL) 6430 { 6431 ptr = tofree; 6432 len = (int)STRLEN(ptr); 6433 file_name = find_file_in_path(ptr, len, options & ~FNAME_MESS, 6434 TRUE, rel_fname); 6435 } 6436 } 6437 # endif 6438 if (file_name == NULL && (options & FNAME_MESS)) 6439 { 6440 c = ptr[len]; 6441 ptr[len] = NUL; 6442 EMSG2(_("E447: Can't find file \"%s\" in path"), ptr); 6443 ptr[len] = c; 6444 } 6445 6446 /* Repeat finding the file "count" times. This matters when it 6447 * appears several times in the path. */ 6448 while (file_name != NULL && --count > 0) 6449 { 6450 vim_free(file_name); 6451 file_name = find_file_in_path(ptr, len, options, FALSE, rel_fname); 6452 } 6453 } 6454 else 6455 file_name = vim_strnsave(ptr, len); 6456 6457 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 6458 vim_free(tofree); 6459 # endif 6460 6461 return file_name; 6462 } 6463 #endif /* FEAT_SEARCHPATH */ 6464 6465 /* 6466 * Check if the "://" of a URL is at the pointer, return URL_SLASH. 6467 * Also check for ":\\", which MS Internet Explorer accepts, return 6468 * URL_BACKSLASH. 6469 */ 6470 static int 6471 path_is_url(p) 6472 char_u *p; 6473 { 6474 if (STRNCMP(p, "://", (size_t)3) == 0) 6475 return URL_SLASH; 6476 else if (STRNCMP(p, ":\\\\", (size_t)3) == 0) 6477 return URL_BACKSLASH; 6478 return 0; 6479 } 6480 6481 /* 6482 * Check if "fname" starts with "name://". Return URL_SLASH if it does. 6483 * Return URL_BACKSLASH for "name:\\". 6484 * Return zero otherwise. 6485 */ 6486 int 6487 path_with_url(fname) 6488 char_u *fname; 6489 { 6490 char_u *p; 6491 6492 for (p = fname; isalpha(*p); ++p) 6493 ; 6494 return path_is_url(p); 6495 } 6496 6497 /* 6498 * Return TRUE if "name" is a full (absolute) path name or URL. 6499 */ 6500 int 6501 vim_isAbsName(name) 6502 char_u *name; 6503 { 6504 return (path_with_url(name) != 0 || mch_isFullName(name)); 6505 } 6506 6507 /* 6508 * Get absolute file name into buffer "buf[len]". 6509 * 6510 * return FAIL for failure, OK otherwise 6511 */ 6512 int 6513 vim_FullName(fname, buf, len, force) 6514 char_u *fname, *buf; 6515 int len; 6516 int force; /* force expansion even when already absolute */ 6517 { 6518 int retval = OK; 6519 int url; 6520 6521 *buf = NUL; 6522 if (fname == NULL) 6523 return FAIL; 6524 6525 url = path_with_url(fname); 6526 if (!url) 6527 retval = mch_FullName(fname, buf, len, force); 6528 if (url || retval == FAIL) 6529 { 6530 /* something failed; use the file name (truncate when too long) */ 6531 vim_strncpy(buf, fname, len - 1); 6532 } 6533 #if defined(MACOS_CLASSIC) || defined(OS2) || defined(MSDOS) || defined(MSWIN) 6534 slash_adjust(buf); 6535 #endif 6536 return retval; 6537 } 6538 6539 /* 6540 * Return the minimal number of rows that is needed on the screen to display 6541 * the current number of windows. 6542 */ 6543 int 6544 min_rows() 6545 { 6546 int total; 6547 #ifdef FEAT_WINDOWS 6548 tabpage_T *tp; 6549 int n; 6550 #endif 6551 6552 if (firstwin == NULL) /* not initialized yet */ 6553 return MIN_LINES; 6554 6555 #ifdef FEAT_WINDOWS 6556 total = 0; 6557 for (tp = first_tabpage; tp != NULL; tp = tp->tp_next) 6558 { 6559 n = frame_minheight(tp->tp_topframe, NULL); 6560 if (total < n) 6561 total = n; 6562 } 6563 total += tabline_height(); 6564 #else 6565 total = 1; /* at least one window should have a line! */ 6566 #endif 6567 total += 1; /* count the room for the command line */ 6568 return total; 6569 } 6570 6571 /* 6572 * Return TRUE if there is only one window (in the current tab page), not 6573 * counting a help or preview window, unless it is the current window. 6574 * Does not count "aucmd_win". 6575 */ 6576 int 6577 only_one_window() 6578 { 6579 #ifdef FEAT_WINDOWS 6580 int count = 0; 6581 win_T *wp; 6582 6583 /* If there is another tab page there always is another window. */ 6584 if (first_tabpage->tp_next != NULL) 6585 return FALSE; 6586 6587 for (wp = firstwin; wp != NULL; wp = wp->w_next) 6588 if (wp->w_buffer != NULL 6589 && (!((wp->w_buffer->b_help && !curbuf->b_help) 6590 # ifdef FEAT_QUICKFIX 6591 || wp->w_p_pvw 6592 # endif 6593 ) || wp == curwin) 6594 # ifdef FEAT_AUTOCMD 6595 && wp != aucmd_win 6596 # endif 6597 ) 6598 ++count; 6599 return (count <= 1); 6600 #else 6601 return TRUE; 6602 #endif 6603 } 6604 6605 #if defined(FEAT_WINDOWS) || defined(FEAT_AUTOCMD) || defined(PROTO) 6606 /* 6607 * Correct the cursor line number in other windows. Used after changing the 6608 * current buffer, and before applying autocommands. 6609 * When "do_curwin" is TRUE, also check current window. 6610 */ 6611 void 6612 check_lnums(do_curwin) 6613 int do_curwin; 6614 { 6615 win_T *wp; 6616 6617 #ifdef FEAT_WINDOWS 6618 tabpage_T *tp; 6619 6620 FOR_ALL_TAB_WINDOWS(tp, wp) 6621 if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) 6622 #else 6623 wp = curwin; 6624 if (do_curwin) 6625 #endif 6626 { 6627 if (wp->w_cursor.lnum > curbuf->b_ml.ml_line_count) 6628 wp->w_cursor.lnum = curbuf->b_ml.ml_line_count; 6629 if (wp->w_topline > curbuf->b_ml.ml_line_count) 6630 wp->w_topline = curbuf->b_ml.ml_line_count; 6631 } 6632 } 6633 #endif 6634 6635 #if defined(FEAT_WINDOWS) || defined(PROTO) 6636 6637 /* 6638 * A snapshot of the window sizes, to restore them after closing the help 6639 * window. 6640 * Only these fields are used: 6641 * fr_layout 6642 * fr_width 6643 * fr_height 6644 * fr_next 6645 * fr_child 6646 * fr_win (only valid for the old curwin, NULL otherwise) 6647 */ 6648 6649 /* 6650 * Create a snapshot of the current frame sizes. 6651 */ 6652 void 6653 make_snapshot(idx) 6654 int idx; 6655 { 6656 clear_snapshot(curtab, idx); 6657 make_snapshot_rec(topframe, &curtab->tp_snapshot[idx]); 6658 } 6659 6660 static void 6661 make_snapshot_rec(fr, frp) 6662 frame_T *fr; 6663 frame_T **frp; 6664 { 6665 *frp = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); 6666 if (*frp == NULL) 6667 return; 6668 (*frp)->fr_layout = fr->fr_layout; 6669 # ifdef FEAT_VERTSPLIT 6670 (*frp)->fr_width = fr->fr_width; 6671 # endif 6672 (*frp)->fr_height = fr->fr_height; 6673 if (fr->fr_next != NULL) 6674 make_snapshot_rec(fr->fr_next, &((*frp)->fr_next)); 6675 if (fr->fr_child != NULL) 6676 make_snapshot_rec(fr->fr_child, &((*frp)->fr_child)); 6677 if (fr->fr_layout == FR_LEAF && fr->fr_win == curwin) 6678 (*frp)->fr_win = curwin; 6679 } 6680 6681 /* 6682 * Remove any existing snapshot. 6683 */ 6684 static void 6685 clear_snapshot(tp, idx) 6686 tabpage_T *tp; 6687 int idx; 6688 { 6689 clear_snapshot_rec(tp->tp_snapshot[idx]); 6690 tp->tp_snapshot[idx] = NULL; 6691 } 6692 6693 static void 6694 clear_snapshot_rec(fr) 6695 frame_T *fr; 6696 { 6697 if (fr != NULL) 6698 { 6699 clear_snapshot_rec(fr->fr_next); 6700 clear_snapshot_rec(fr->fr_child); 6701 vim_free(fr); 6702 } 6703 } 6704 6705 /* 6706 * Restore a previously created snapshot, if there is any. 6707 * This is only done if the screen size didn't change and the window layout is 6708 * still the same. 6709 */ 6710 void 6711 restore_snapshot(idx, close_curwin) 6712 int idx; 6713 int close_curwin; /* closing current window */ 6714 { 6715 win_T *wp; 6716 6717 if (curtab->tp_snapshot[idx] != NULL 6718 # ifdef FEAT_VERTSPLIT 6719 && curtab->tp_snapshot[idx]->fr_width == topframe->fr_width 6720 # endif 6721 && curtab->tp_snapshot[idx]->fr_height == topframe->fr_height 6722 && check_snapshot_rec(curtab->tp_snapshot[idx], topframe) == OK) 6723 { 6724 wp = restore_snapshot_rec(curtab->tp_snapshot[idx], topframe); 6725 win_comp_pos(); 6726 if (wp != NULL && close_curwin) 6727 win_goto(wp); 6728 redraw_all_later(CLEAR); 6729 } 6730 clear_snapshot(curtab, idx); 6731 } 6732 6733 /* 6734 * Check if frames "sn" and "fr" have the same layout, same following frames 6735 * and same children. 6736 */ 6737 static int 6738 check_snapshot_rec(sn, fr) 6739 frame_T *sn; 6740 frame_T *fr; 6741 { 6742 if (sn->fr_layout != fr->fr_layout 6743 || (sn->fr_next == NULL) != (fr->fr_next == NULL) 6744 || (sn->fr_child == NULL) != (fr->fr_child == NULL) 6745 || (sn->fr_next != NULL 6746 && check_snapshot_rec(sn->fr_next, fr->fr_next) == FAIL) 6747 || (sn->fr_child != NULL 6748 && check_snapshot_rec(sn->fr_child, fr->fr_child) == FAIL)) 6749 return FAIL; 6750 return OK; 6751 } 6752 6753 /* 6754 * Copy the size of snapshot frame "sn" to frame "fr". Do the same for all 6755 * following frames and children. 6756 * Returns a pointer to the old current window, or NULL. 6757 */ 6758 static win_T * 6759 restore_snapshot_rec(sn, fr) 6760 frame_T *sn; 6761 frame_T *fr; 6762 { 6763 win_T *wp = NULL; 6764 win_T *wp2; 6765 6766 fr->fr_height = sn->fr_height; 6767 # ifdef FEAT_VERTSPLIT 6768 fr->fr_width = sn->fr_width; 6769 # endif 6770 if (fr->fr_layout == FR_LEAF) 6771 { 6772 frame_new_height(fr, fr->fr_height, FALSE, FALSE); 6773 # ifdef FEAT_VERTSPLIT 6774 frame_new_width(fr, fr->fr_width, FALSE, FALSE); 6775 # endif 6776 wp = sn->fr_win; 6777 } 6778 if (sn->fr_next != NULL) 6779 { 6780 wp2 = restore_snapshot_rec(sn->fr_next, fr->fr_next); 6781 if (wp2 != NULL) 6782 wp = wp2; 6783 } 6784 if (sn->fr_child != NULL) 6785 { 6786 wp2 = restore_snapshot_rec(sn->fr_child, fr->fr_child); 6787 if (wp2 != NULL) 6788 wp = wp2; 6789 } 6790 return wp; 6791 } 6792 6793 #endif 6794 6795 #if defined(FEAT_EVAL) || defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) \ 6796 || defined(PROTO) 6797 /* 6798 * Set "win" to be the curwin and "tp" to be the current tab page. 6799 * restore_win() MUST be called to undo, also when FAIL is returned. 6800 * No autocommands will be executed until restore_win() is called. 6801 * When "no_display" is TRUE the display won't be affected, no redraw is 6802 * triggered, another tabpage access is limited. 6803 * Returns FAIL if switching to "win" failed. 6804 */ 6805 int 6806 switch_win(save_curwin, save_curtab, win, tp, no_display) 6807 win_T **save_curwin UNUSED; 6808 tabpage_T **save_curtab UNUSED; 6809 win_T *win UNUSED; 6810 tabpage_T *tp UNUSED; 6811 int no_display UNUSED; 6812 { 6813 # ifdef FEAT_AUTOCMD 6814 block_autocmds(); 6815 # endif 6816 # ifdef FEAT_WINDOWS 6817 *save_curwin = curwin; 6818 if (tp != NULL) 6819 { 6820 *save_curtab = curtab; 6821 if (no_display) 6822 { 6823 curtab->tp_firstwin = firstwin; 6824 curtab->tp_lastwin = lastwin; 6825 curtab = tp; 6826 firstwin = curtab->tp_firstwin; 6827 lastwin = curtab->tp_lastwin; 6828 } 6829 else 6830 goto_tabpage_tp(tp, FALSE, FALSE); 6831 } 6832 if (!win_valid(win)) 6833 return FAIL; 6834 curwin = win; 6835 curbuf = curwin->w_buffer; 6836 # endif 6837 return OK; 6838 } 6839 6840 /* 6841 * Restore current tabpage and window saved by switch_win(), if still valid. 6842 * When "no_display" is TRUE the display won't be affected, no redraw is 6843 * triggered. 6844 */ 6845 void 6846 restore_win(save_curwin, save_curtab, no_display) 6847 win_T *save_curwin UNUSED; 6848 tabpage_T *save_curtab UNUSED; 6849 int no_display UNUSED; 6850 { 6851 # ifdef FEAT_WINDOWS 6852 if (save_curtab != NULL && valid_tabpage(save_curtab)) 6853 { 6854 if (no_display) 6855 { 6856 curtab->tp_firstwin = firstwin; 6857 curtab->tp_lastwin = lastwin; 6858 curtab = save_curtab; 6859 firstwin = curtab->tp_firstwin; 6860 lastwin = curtab->tp_lastwin; 6861 } 6862 else 6863 goto_tabpage_tp(save_curtab, FALSE, FALSE); 6864 } 6865 if (win_valid(save_curwin)) 6866 { 6867 curwin = save_curwin; 6868 curbuf = curwin->w_buffer; 6869 } 6870 # endif 6871 # ifdef FEAT_AUTOCMD 6872 unblock_autocmds(); 6873 # endif 6874 } 6875 6876 /* 6877 * Make "buf" the current buffer. restore_buffer() MUST be called to undo. 6878 * No autocommands will be executed. Use aucmd_prepbuf() if there are any. 6879 */ 6880 void 6881 switch_buffer(save_curbuf, buf) 6882 buf_T *buf; 6883 buf_T **save_curbuf; 6884 { 6885 # ifdef FEAT_AUTOCMD 6886 block_autocmds(); 6887 # endif 6888 *save_curbuf = curbuf; 6889 --curbuf->b_nwindows; 6890 curbuf = buf; 6891 curwin->w_buffer = buf; 6892 ++curbuf->b_nwindows; 6893 } 6894 6895 /* 6896 * Restore the current buffer after using switch_buffer(). 6897 */ 6898 void 6899 restore_buffer(save_curbuf) 6900 buf_T *save_curbuf; 6901 { 6902 # ifdef FEAT_AUTOCMD 6903 unblock_autocmds(); 6904 # endif 6905 /* Check for valid buffer, just in case. */ 6906 if (buf_valid(save_curbuf)) 6907 { 6908 --curbuf->b_nwindows; 6909 curwin->w_buffer = save_curbuf; 6910 curbuf = save_curbuf; 6911 ++curbuf->b_nwindows; 6912 } 6913 } 6914 #endif 6915 6916 #if (defined(FEAT_GUI) && defined(FEAT_VERTSPLIT)) || defined(PROTO) 6917 /* 6918 * Return TRUE if there is any vertically split window. 6919 */ 6920 int 6921 win_hasvertsplit() 6922 { 6923 frame_T *fr; 6924 6925 if (topframe->fr_layout == FR_ROW) 6926 return TRUE; 6927 6928 if (topframe->fr_layout == FR_COL) 6929 for (fr = topframe->fr_child; fr != NULL; fr = fr->fr_next) 6930 if (fr->fr_layout == FR_ROW) 6931 return TRUE; 6932 6933 return FALSE; 6934 } 6935 #endif 6936 6937 #if defined(FEAT_SEARCH_EXTRA) || defined(PROTO) 6938 /* 6939 * Add match to the match list of window 'wp'. The pattern 'pat' will be 6940 * highlighted with the group 'grp' with priority 'prio'. 6941 * Optionally, a desired ID 'id' can be specified (greater than or equal to 1). 6942 * If no particular ID is desired, -1 must be specified for 'id'. 6943 * Return ID of added match, -1 on failure. 6944 */ 6945 int 6946 match_add(wp, grp, pat, prio, id, pos_list, conceal_char) 6947 win_T *wp; 6948 char_u *grp; 6949 char_u *pat; 6950 int prio; 6951 int id; 6952 list_T *pos_list; 6953 char_u *conceal_char UNUSED; /* pointer to conceal replacement char */ 6954 { 6955 matchitem_T *cur; 6956 matchitem_T *prev; 6957 matchitem_T *m; 6958 int hlg_id; 6959 regprog_T *regprog = NULL; 6960 int rtype = SOME_VALID; 6961 6962 if (*grp == NUL || (pat != NULL && *pat == NUL)) 6963 return -1; 6964 if (id < -1 || id == 0) 6965 { 6966 EMSGN("E799: Invalid ID: %ld (must be greater than or equal to 1)", id); 6967 return -1; 6968 } 6969 if (id != -1) 6970 { 6971 cur = wp->w_match_head; 6972 while (cur != NULL) 6973 { 6974 if (cur->id == id) 6975 { 6976 EMSGN("E801: ID already taken: %ld", id); 6977 return -1; 6978 } 6979 cur = cur->next; 6980 } 6981 } 6982 if ((hlg_id = syn_namen2id(grp, (int)STRLEN(grp))) == 0) 6983 { 6984 EMSG2(_(e_nogroup), grp); 6985 return -1; 6986 } 6987 if (pat != NULL && (regprog = vim_regcomp(pat, RE_MAGIC)) == NULL) 6988 { 6989 EMSG2(_(e_invarg2), pat); 6990 return -1; 6991 } 6992 6993 /* Find available match ID. */ 6994 while (id == -1) 6995 { 6996 cur = wp->w_match_head; 6997 while (cur != NULL && cur->id != wp->w_next_match_id) 6998 cur = cur->next; 6999 if (cur == NULL) 7000 id = wp->w_next_match_id; 7001 wp->w_next_match_id++; 7002 } 7003 7004 /* Build new match. */ 7005 m = (matchitem_T *)alloc_clear(sizeof(matchitem_T)); 7006 m->id = id; 7007 m->priority = prio; 7008 m->pattern = pat == NULL ? NULL : vim_strsave(pat); 7009 m->hlg_id = hlg_id; 7010 m->match.regprog = regprog; 7011 m->match.rmm_ic = FALSE; 7012 m->match.rmm_maxcol = 0; 7013 #ifdef FEAT_CONCEAL 7014 m->conceal_char = 0; 7015 if (conceal_char != NULL) 7016 m->conceal_char = (*mb_ptr2char)(conceal_char); 7017 #endif 7018 7019 /* Set up position matches */ 7020 if (pos_list != NULL) 7021 { 7022 linenr_T toplnum = 0; 7023 linenr_T botlnum = 0; 7024 listitem_T *li; 7025 int i; 7026 7027 for (i = 0, li = pos_list->lv_first; li != NULL && i < MAXPOSMATCH; 7028 i++, li = li->li_next) 7029 { 7030 linenr_T lnum = 0; 7031 colnr_T col = 0; 7032 int len = 1; 7033 list_T *subl; 7034 listitem_T *subli; 7035 int error = FALSE; 7036 7037 if (li->li_tv.v_type == VAR_LIST) 7038 { 7039 subl = li->li_tv.vval.v_list; 7040 if (subl == NULL) 7041 goto fail; 7042 subli = subl->lv_first; 7043 if (subli == NULL) 7044 goto fail; 7045 lnum = get_tv_number_chk(&subli->li_tv, &error); 7046 if (error == TRUE) 7047 goto fail; 7048 if (lnum == 0) 7049 { 7050 --i; 7051 continue; 7052 } 7053 m->pos.pos[i].lnum = lnum; 7054 subli = subli->li_next; 7055 if (subli != NULL) 7056 { 7057 col = get_tv_number_chk(&subli->li_tv, &error); 7058 if (error == TRUE) 7059 goto fail; 7060 subli = subli->li_next; 7061 if (subli != NULL) 7062 { 7063 len = get_tv_number_chk(&subli->li_tv, &error); 7064 if (error == TRUE) 7065 goto fail; 7066 } 7067 } 7068 m->pos.pos[i].col = col; 7069 m->pos.pos[i].len = len; 7070 } 7071 else if (li->li_tv.v_type == VAR_NUMBER) 7072 { 7073 if (li->li_tv.vval.v_number == 0) 7074 { 7075 --i; 7076 continue; 7077 } 7078 m->pos.pos[i].lnum = li->li_tv.vval.v_number; 7079 m->pos.pos[i].col = 0; 7080 m->pos.pos[i].len = 0; 7081 } 7082 else 7083 { 7084 EMSG(_("List or number required")); 7085 goto fail; 7086 } 7087 if (toplnum == 0 || lnum < toplnum) 7088 toplnum = lnum; 7089 if (botlnum == 0 || lnum >= botlnum) 7090 botlnum = lnum + 1; 7091 } 7092 7093 /* Calculate top and bottom lines for redrawing area */ 7094 if (toplnum != 0) 7095 { 7096 if (wp->w_buffer->b_mod_set) 7097 { 7098 if (wp->w_buffer->b_mod_top > toplnum) 7099 wp->w_buffer->b_mod_top = toplnum; 7100 if (wp->w_buffer->b_mod_bot < botlnum) 7101 wp->w_buffer->b_mod_bot = botlnum; 7102 } 7103 else 7104 { 7105 wp->w_buffer->b_mod_set = TRUE; 7106 wp->w_buffer->b_mod_top = toplnum; 7107 wp->w_buffer->b_mod_bot = botlnum; 7108 wp->w_buffer->b_mod_xlines = 0; 7109 } 7110 m->pos.toplnum = toplnum; 7111 m->pos.botlnum = botlnum; 7112 rtype = VALID; 7113 } 7114 } 7115 7116 /* Insert new match. The match list is in ascending order with regard to 7117 * the match priorities. */ 7118 cur = wp->w_match_head; 7119 prev = cur; 7120 while (cur != NULL && prio >= cur->priority) 7121 { 7122 prev = cur; 7123 cur = cur->next; 7124 } 7125 if (cur == prev) 7126 wp->w_match_head = m; 7127 else 7128 prev->next = m; 7129 m->next = cur; 7130 7131 redraw_later(rtype); 7132 return id; 7133 7134 fail: 7135 vim_free(m); 7136 return -1; 7137 } 7138 7139 /* 7140 * Delete match with ID 'id' in the match list of window 'wp'. 7141 * Print error messages if 'perr' is TRUE. 7142 */ 7143 int 7144 match_delete(wp, id, perr) 7145 win_T *wp; 7146 int id; 7147 int perr; 7148 { 7149 matchitem_T *cur = wp->w_match_head; 7150 matchitem_T *prev = cur; 7151 int rtype = SOME_VALID; 7152 7153 if (id < 1) 7154 { 7155 if (perr == TRUE) 7156 EMSGN("E802: Invalid ID: %ld (must be greater than or equal to 1)", 7157 id); 7158 return -1; 7159 } 7160 while (cur != NULL && cur->id != id) 7161 { 7162 prev = cur; 7163 cur = cur->next; 7164 } 7165 if (cur == NULL) 7166 { 7167 if (perr == TRUE) 7168 EMSGN("E803: ID not found: %ld", id); 7169 return -1; 7170 } 7171 if (cur == prev) 7172 wp->w_match_head = cur->next; 7173 else 7174 prev->next = cur->next; 7175 vim_regfree(cur->match.regprog); 7176 vim_free(cur->pattern); 7177 if (cur->pos.toplnum != 0) 7178 { 7179 if (wp->w_buffer->b_mod_set) 7180 { 7181 if (wp->w_buffer->b_mod_top > cur->pos.toplnum) 7182 wp->w_buffer->b_mod_top = cur->pos.toplnum; 7183 if (wp->w_buffer->b_mod_bot < cur->pos.botlnum) 7184 wp->w_buffer->b_mod_bot = cur->pos.botlnum; 7185 } 7186 else 7187 { 7188 wp->w_buffer->b_mod_set = TRUE; 7189 wp->w_buffer->b_mod_top = cur->pos.toplnum; 7190 wp->w_buffer->b_mod_bot = cur->pos.botlnum; 7191 wp->w_buffer->b_mod_xlines = 0; 7192 } 7193 rtype = VALID; 7194 } 7195 vim_free(cur); 7196 redraw_later(rtype); 7197 return 0; 7198 } 7199 7200 /* 7201 * Delete all matches in the match list of window 'wp'. 7202 */ 7203 void 7204 clear_matches(wp) 7205 win_T *wp; 7206 { 7207 matchitem_T *m; 7208 7209 while (wp->w_match_head != NULL) 7210 { 7211 m = wp->w_match_head->next; 7212 vim_regfree(wp->w_match_head->match.regprog); 7213 vim_free(wp->w_match_head->pattern); 7214 vim_free(wp->w_match_head); 7215 wp->w_match_head = m; 7216 } 7217 redraw_later(SOME_VALID); 7218 } 7219 7220 /* 7221 * Get match from ID 'id' in window 'wp'. 7222 * Return NULL if match not found. 7223 */ 7224 matchitem_T * 7225 get_match(wp, id) 7226 win_T *wp; 7227 int id; 7228 { 7229 matchitem_T *cur = wp->w_match_head; 7230 7231 while (cur != NULL && cur->id != id) 7232 cur = cur->next; 7233 return cur; 7234 } 7235 #endif 7236 7237 #if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO) 7238 int 7239 get_win_number(win_T *wp, win_T *first_win) 7240 { 7241 int i = 1; 7242 win_T *w; 7243 7244 for (w = first_win; w != NULL && w != wp; w = W_NEXT(w)) 7245 ++i; 7246 7247 if (w == NULL) 7248 return 0; 7249 else 7250 return i; 7251 } 7252 7253 int 7254 get_tab_number(tabpage_T *tp UNUSED) 7255 { 7256 int i = 1; 7257 # ifdef FEAT_WINDOWS 7258 tabpage_T *t; 7259 7260 for (t = first_tabpage; t != NULL && t != tp; t = t->tp_next) 7261 ++i; 7262 7263 if (t == NULL) 7264 return 0; 7265 else 7266 # endif 7267 return i; 7268 } 7269 #endif 7270 7271 #ifdef FEAT_WINDOWS 7272 /* 7273 * Return TRUE if "topfrp" and its children are at the right height. 7274 */ 7275 static int 7276 frame_check_height(topfrp, height) 7277 frame_T *topfrp; 7278 int height; 7279 { 7280 frame_T *frp; 7281 7282 if (topfrp->fr_height != height) 7283 return FALSE; 7284 7285 if (topfrp->fr_layout == FR_ROW) 7286 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 7287 if (frp->fr_height != height) 7288 return FALSE; 7289 7290 return TRUE; 7291 } 7292 #endif 7293 7294 #ifdef FEAT_VERTSPLIT 7295 /* 7296 * Return TRUE if "topfrp" and its children are at the right width. 7297 */ 7298 static int 7299 frame_check_width(topfrp, width) 7300 frame_T *topfrp; 7301 int width; 7302 { 7303 frame_T *frp; 7304 7305 if (topfrp->fr_width != width) 7306 return FALSE; 7307 7308 if (topfrp->fr_layout == FR_COL) 7309 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 7310 if (frp->fr_width != width) 7311 return FALSE; 7312 7313 return TRUE; 7314 } 7315 #endif 7316 7317