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 #ifdef HAVE_FCNTL_H 13 # include <fcntl.h> /* for chdir() */ 14 #endif 15 16 static int path_is_url __ARGS((char_u *p)); 17 #if defined(FEAT_WINDOWS) || defined(PROTO) 18 static int win_split_ins __ARGS((int size, int flags, win_T *newwin, int dir)); 19 static void win_init __ARGS((win_T *newp, win_T *oldp)); 20 static void frame_comp_pos __ARGS((frame_T *topfrp, int *row, int *col)); 21 static void frame_setheight __ARGS((frame_T *curfrp, int height)); 22 #ifdef FEAT_VERTSPLIT 23 static void frame_setwidth __ARGS((frame_T *curfrp, int width)); 24 #endif 25 static void win_exchange __ARGS((long)); 26 static void win_rotate __ARGS((int, int)); 27 static void win_totop __ARGS((int size, int flags)); 28 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)); 29 static int last_window __ARGS((void)); 30 static win_T *win_free_mem __ARGS((win_T *win, int *dirp, tabpage_T *tp)); 31 static win_T *winframe_remove __ARGS((win_T *win, int *dirp, tabpage_T *tp)); 32 static frame_T *win_altframe __ARGS((win_T *win, tabpage_T *tp)); 33 static tabpage_T *alt_tabpage __ARGS((void)); 34 static win_T *frame2win __ARGS((frame_T *frp)); 35 static int frame_has_win __ARGS((frame_T *frp, win_T *wp)); 36 static void frame_new_height __ARGS((frame_T *topfrp, int height, int topfirst, int wfh)); 37 static int frame_fixed_height __ARGS((frame_T *frp)); 38 #ifdef FEAT_VERTSPLIT 39 static int frame_fixed_width __ARGS((frame_T *frp)); 40 static void frame_add_statusline __ARGS((frame_T *frp)); 41 static void frame_new_width __ARGS((frame_T *topfrp, int width, int leftfirst, int wfw)); 42 static void frame_add_vsep __ARGS((frame_T *frp)); 43 static int frame_minwidth __ARGS((frame_T *topfrp, win_T *next_curwin)); 44 static void frame_fix_width __ARGS((win_T *wp)); 45 #endif 46 #endif 47 static int win_alloc_firstwin __ARGS((win_T *oldwin)); 48 #if defined(FEAT_WINDOWS) || defined(PROTO) 49 static tabpage_T *alloc_tabpage __ARGS((void)); 50 static void free_tabpage __ARGS((tabpage_T *tp)); 51 static int leave_tabpage __ARGS((buf_T *new_curbuf)); 52 static void enter_tabpage __ARGS((tabpage_T *tp, buf_T *old_curbuf)); 53 static void frame_fix_height __ARGS((win_T *wp)); 54 static int frame_minheight __ARGS((frame_T *topfrp, win_T *next_curwin)); 55 static void win_enter_ext __ARGS((win_T *wp, int undo_sync, int no_curwin)); 56 static void win_free __ARGS((win_T *wp, tabpage_T *tp)); 57 static void win_append __ARGS((win_T *, win_T *)); 58 static void win_remove __ARGS((win_T *, tabpage_T *tp)); 59 static void frame_append __ARGS((frame_T *after, frame_T *frp)); 60 static void frame_insert __ARGS((frame_T *before, frame_T *frp)); 61 static void frame_remove __ARGS((frame_T *frp)); 62 #ifdef FEAT_VERTSPLIT 63 static void win_new_width __ARGS((win_T *wp, int width)); 64 static void win_goto_ver __ARGS((int up, long count)); 65 static void win_goto_hor __ARGS((int left, long count)); 66 #endif 67 static void frame_add_height __ARGS((frame_T *frp, int n)); 68 static void last_status_rec __ARGS((frame_T *fr, int statusline)); 69 70 static void make_snapshot __ARGS((void)); 71 static void make_snapshot_rec __ARGS((frame_T *fr, frame_T **frp)); 72 static void clear_snapshot __ARGS((tabpage_T *tp)); 73 static void clear_snapshot_rec __ARGS((frame_T *fr)); 74 static void restore_snapshot __ARGS((int close_curwin)); 75 static int check_snapshot_rec __ARGS((frame_T *sn, frame_T *fr)); 76 static win_T *restore_snapshot_rec __ARGS((frame_T *sn, frame_T *fr)); 77 78 #endif /* FEAT_WINDOWS */ 79 static win_T *win_alloc __ARGS((win_T *after)); 80 static void win_new_height __ARGS((win_T *, int)); 81 82 #define URL_SLASH 1 /* path_is_url() has found "://" */ 83 #define URL_BACKSLASH 2 /* path_is_url() has found ":\\" */ 84 85 #define NOWIN (win_T *)-1 /* non-exisiting window */ 86 87 #ifdef FEAT_WINDOWS 88 static long p_ch_used = 1L; /* value of 'cmdheight' when frame 89 size was set */ 90 # define ROWS_AVAIL (Rows - p_ch - tabline_height()) 91 #else 92 # define ROWS_AVAIL (Rows - p_ch) 93 #endif 94 95 #if defined(FEAT_WINDOWS) || defined(PROTO) 96 /* 97 * all CTRL-W window commands are handled here, called from normal_cmd(). 98 */ 99 void 100 do_window(nchar, Prenum, xchar) 101 int nchar; 102 long Prenum; 103 int xchar; /* extra char from ":wincmd gx" or NUL */ 104 { 105 long Prenum1; 106 win_T *wp; 107 #if defined(FEAT_SEARCHPATH) || defined(FEAT_FIND_ID) 108 char_u *ptr; 109 linenr_T lnum = -1; 110 #endif 111 #ifdef FEAT_FIND_ID 112 int type = FIND_DEFINE; 113 int len; 114 #endif 115 char_u cbuf[40]; 116 117 if (Prenum == 0) 118 Prenum1 = 1; 119 else 120 Prenum1 = Prenum; 121 122 #ifdef FEAT_CMDWIN 123 # define CHECK_CMDWIN if (cmdwin_type != 0) { EMSG(_(e_cmdwin)); break; } 124 #else 125 # define CHECK_CMDWIN 126 #endif 127 128 switch (nchar) 129 { 130 /* split current window in two parts, horizontally */ 131 case 'S': 132 case Ctrl_S: 133 case 's': 134 CHECK_CMDWIN 135 #ifdef FEAT_VISUAL 136 reset_VIsual_and_resel(); /* stop Visual mode */ 137 #endif 138 #ifdef FEAT_QUICKFIX 139 /* When splitting the quickfix window open a new buffer in it, 140 * don't replicate the quickfix buffer. */ 141 if (bt_quickfix(curbuf)) 142 goto newwindow; 143 #endif 144 #ifdef FEAT_GUI 145 need_mouse_correct = TRUE; 146 #endif 147 win_split((int)Prenum, 0); 148 break; 149 150 #ifdef FEAT_VERTSPLIT 151 /* split current window in two parts, vertically */ 152 case Ctrl_V: 153 case 'v': 154 CHECK_CMDWIN 155 #ifdef FEAT_VISUAL 156 reset_VIsual_and_resel(); /* stop Visual mode */ 157 #endif 158 #ifdef FEAT_GUI 159 need_mouse_correct = TRUE; 160 #endif 161 win_split((int)Prenum, WSP_VERT); 162 break; 163 #endif 164 165 /* split current window and edit alternate file */ 166 case Ctrl_HAT: 167 case '^': 168 CHECK_CMDWIN 169 #ifdef FEAT_VISUAL 170 reset_VIsual_and_resel(); /* stop Visual mode */ 171 #endif 172 STRCPY(cbuf, "split #"); 173 if (Prenum) 174 sprintf((char *)cbuf + 7, "%ld", Prenum); 175 do_cmdline_cmd(cbuf); 176 break; 177 178 /* open new window */ 179 case Ctrl_N: 180 case 'n': 181 CHECK_CMDWIN 182 #ifdef FEAT_VISUAL 183 reset_VIsual_and_resel(); /* stop Visual mode */ 184 #endif 185 #ifdef FEAT_QUICKFIX 186 newwindow: 187 #endif 188 if (Prenum) 189 sprintf((char *)cbuf, "%ld", Prenum); /* window height */ 190 else 191 cbuf[0] = NUL; 192 STRCAT(cbuf, "new"); 193 do_cmdline_cmd(cbuf); 194 break; 195 196 /* quit current window */ 197 case Ctrl_Q: 198 case 'q': 199 #ifdef FEAT_VISUAL 200 reset_VIsual_and_resel(); /* stop Visual mode */ 201 #endif 202 do_cmdline_cmd((char_u *)"quit"); 203 break; 204 205 /* close current window */ 206 case Ctrl_C: 207 case 'c': 208 #ifdef FEAT_VISUAL 209 reset_VIsual_and_resel(); /* stop Visual mode */ 210 #endif 211 do_cmdline_cmd((char_u *)"close"); 212 break; 213 214 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX) 215 /* close preview window */ 216 case Ctrl_Z: 217 case 'z': 218 CHECK_CMDWIN 219 #ifdef FEAT_VISUAL 220 reset_VIsual_and_resel(); /* stop Visual mode */ 221 #endif 222 do_cmdline_cmd((char_u *)"pclose"); 223 break; 224 225 /* cursor to preview window */ 226 case 'P': 227 for (wp = firstwin; wp != NULL; wp = wp->w_next) 228 if (wp->w_p_pvw) 229 break; 230 if (wp == NULL) 231 EMSG(_("E441: There is no preview window")); 232 else 233 win_goto(wp); 234 break; 235 #endif 236 237 /* close all but current window */ 238 case Ctrl_O: 239 case 'o': 240 CHECK_CMDWIN 241 #ifdef FEAT_VISUAL 242 reset_VIsual_and_resel(); /* stop Visual mode */ 243 #endif 244 do_cmdline_cmd((char_u *)"only"); 245 break; 246 247 /* cursor to next window with wrap around */ 248 case Ctrl_W: 249 case 'w': 250 /* cursor to previous window with wrap around */ 251 case 'W': 252 CHECK_CMDWIN 253 if (lastwin == firstwin && Prenum != 1) /* just one window */ 254 beep_flush(); 255 else 256 { 257 if (Prenum) /* go to specified window */ 258 { 259 for (wp = firstwin; --Prenum > 0; ) 260 { 261 if (wp->w_next == NULL) 262 break; 263 else 264 wp = wp->w_next; 265 } 266 } 267 else 268 { 269 if (nchar == 'W') /* go to previous window */ 270 { 271 wp = curwin->w_prev; 272 if (wp == NULL) 273 wp = lastwin; /* wrap around */ 274 } 275 else /* go to next window */ 276 { 277 wp = curwin->w_next; 278 if (wp == NULL) 279 wp = firstwin; /* wrap around */ 280 } 281 } 282 win_goto(wp); 283 } 284 break; 285 286 /* cursor to window below */ 287 case 'j': 288 case K_DOWN: 289 case Ctrl_J: 290 CHECK_CMDWIN 291 #ifdef FEAT_VERTSPLIT 292 win_goto_ver(FALSE, Prenum1); 293 #else 294 for (wp = curwin; wp->w_next != NULL && Prenum1-- > 0; 295 wp = wp->w_next) 296 ; 297 win_goto(wp); 298 #endif 299 break; 300 301 /* cursor to window above */ 302 case 'k': 303 case K_UP: 304 case Ctrl_K: 305 CHECK_CMDWIN 306 #ifdef FEAT_VERTSPLIT 307 win_goto_ver(TRUE, Prenum1); 308 #else 309 for (wp = curwin; wp->w_prev != NULL && Prenum1-- > 0; 310 wp = wp->w_prev) 311 ; 312 win_goto(wp); 313 #endif 314 break; 315 316 #ifdef FEAT_VERTSPLIT 317 /* cursor to left window */ 318 case 'h': 319 case K_LEFT: 320 case Ctrl_H: 321 case K_BS: 322 CHECK_CMDWIN 323 win_goto_hor(TRUE, Prenum1); 324 break; 325 326 /* cursor to right window */ 327 case 'l': 328 case K_RIGHT: 329 case Ctrl_L: 330 CHECK_CMDWIN 331 win_goto_hor(FALSE, Prenum1); 332 break; 333 #endif 334 335 /* cursor to top-left window */ 336 case 't': 337 case Ctrl_T: 338 win_goto(firstwin); 339 break; 340 341 /* cursor to bottom-right window */ 342 case 'b': 343 case Ctrl_B: 344 win_goto(lastwin); 345 break; 346 347 /* cursor to last accessed (previous) window */ 348 case 'p': 349 case Ctrl_P: 350 if (prevwin == NULL) 351 beep_flush(); 352 else 353 win_goto(prevwin); 354 break; 355 356 /* exchange current and next window */ 357 case 'x': 358 case Ctrl_X: 359 CHECK_CMDWIN 360 win_exchange(Prenum); 361 break; 362 363 /* rotate windows downwards */ 364 case Ctrl_R: 365 case 'r': 366 CHECK_CMDWIN 367 #ifdef FEAT_VISUAL 368 reset_VIsual_and_resel(); /* stop Visual mode */ 369 #endif 370 win_rotate(FALSE, (int)Prenum1); /* downwards */ 371 break; 372 373 /* rotate windows upwards */ 374 case 'R': 375 CHECK_CMDWIN 376 #ifdef FEAT_VISUAL 377 reset_VIsual_and_resel(); /* stop Visual mode */ 378 #endif 379 win_rotate(TRUE, (int)Prenum1); /* upwards */ 380 break; 381 382 /* move window to the very top/bottom/left/right */ 383 case 'K': 384 case 'J': 385 #ifdef FEAT_VERTSPLIT 386 case 'H': 387 case 'L': 388 #endif 389 CHECK_CMDWIN 390 win_totop((int)Prenum, 391 ((nchar == 'H' || nchar == 'L') ? WSP_VERT : 0) 392 | ((nchar == 'H' || nchar == 'K') ? WSP_TOP : WSP_BOT)); 393 break; 394 395 /* make all windows the same height */ 396 case '=': 397 #ifdef FEAT_GUI 398 need_mouse_correct = TRUE; 399 #endif 400 win_equal(NULL, FALSE, 'b'); 401 break; 402 403 /* increase current window height */ 404 case '+': 405 #ifdef FEAT_GUI 406 need_mouse_correct = TRUE; 407 #endif 408 win_setheight(curwin->w_height + (int)Prenum1); 409 break; 410 411 /* decrease current window height */ 412 case '-': 413 #ifdef FEAT_GUI 414 need_mouse_correct = TRUE; 415 #endif 416 win_setheight(curwin->w_height - (int)Prenum1); 417 break; 418 419 /* set current window height */ 420 case Ctrl__: 421 case '_': 422 #ifdef FEAT_GUI 423 need_mouse_correct = TRUE; 424 #endif 425 win_setheight(Prenum ? (int)Prenum : 9999); 426 break; 427 428 #ifdef FEAT_VERTSPLIT 429 /* increase current window width */ 430 case '>': 431 #ifdef FEAT_GUI 432 need_mouse_correct = TRUE; 433 #endif 434 win_setwidth(curwin->w_width + (int)Prenum1); 435 break; 436 437 /* decrease current window width */ 438 case '<': 439 #ifdef FEAT_GUI 440 need_mouse_correct = TRUE; 441 #endif 442 win_setwidth(curwin->w_width - (int)Prenum1); 443 break; 444 445 /* set current window width */ 446 case '|': 447 #ifdef FEAT_GUI 448 need_mouse_correct = TRUE; 449 #endif 450 win_setwidth(Prenum != 0 ? (int)Prenum : 9999); 451 break; 452 #endif 453 454 /* jump to tag and split window if tag exists (in preview window) */ 455 #if defined(FEAT_QUICKFIX) 456 case '}': 457 CHECK_CMDWIN 458 if (Prenum) 459 g_do_tagpreview = Prenum; 460 else 461 g_do_tagpreview = p_pvh; 462 /*FALLTHROUGH*/ 463 #endif 464 case ']': 465 case Ctrl_RSB: 466 CHECK_CMDWIN 467 #ifdef FEAT_VISUAL 468 reset_VIsual_and_resel(); /* stop Visual mode */ 469 #endif 470 if (Prenum) 471 postponed_split = Prenum; 472 else 473 postponed_split = -1; 474 475 /* Execute the command right here, required when 476 * "wincmd ]" was used in a function. */ 477 do_nv_ident(Ctrl_RSB, NUL); 478 break; 479 480 #ifdef FEAT_SEARCHPATH 481 /* edit file name under cursor in a new window */ 482 case 'f': 483 case 'F': 484 case Ctrl_F: 485 CHECK_CMDWIN 486 487 ptr = grab_file_name(Prenum1, &lnum); 488 if (ptr != NULL) 489 { 490 #ifdef FEAT_GUI 491 need_mouse_correct = TRUE; 492 #endif 493 setpcmark(); 494 if (win_split(0, 0) == OK) 495 { 496 # ifdef FEAT_SCROLLBIND 497 curwin->w_p_scb = FALSE; 498 # endif 499 (void)do_ecmd(0, ptr, NULL, NULL, ECMD_LASTL, ECMD_HIDE); 500 if (nchar == 'F' && lnum >= 0) 501 { 502 curwin->w_cursor.lnum = lnum; 503 check_cursor_lnum(); 504 beginline(BL_SOL | BL_FIX); 505 } 506 } 507 vim_free(ptr); 508 } 509 break; 510 #endif 511 512 #ifdef FEAT_FIND_ID 513 /* Go to the first occurence of the identifier under cursor along path in a 514 * new window -- webb 515 */ 516 case 'i': /* Go to any match */ 517 case Ctrl_I: 518 type = FIND_ANY; 519 /* FALLTHROUGH */ 520 case 'd': /* Go to definition, using 'define' */ 521 case Ctrl_D: 522 CHECK_CMDWIN 523 if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0) 524 break; 525 find_pattern_in_path(ptr, 0, len, TRUE, 526 Prenum == 0 ? TRUE : FALSE, type, 527 Prenum1, ACTION_SPLIT, (linenr_T)1, (linenr_T)MAXLNUM); 528 curwin->w_set_curswant = TRUE; 529 break; 530 #endif 531 532 case K_KENTER: 533 case CAR: 534 #if defined(FEAT_QUICKFIX) 535 /* 536 * In a quickfix window a <CR> jumps to the error under the 537 * cursor in a new window. 538 */ 539 if (bt_quickfix(curbuf)) 540 { 541 sprintf((char *)cbuf, "split +%ld%s", 542 (long)curwin->w_cursor.lnum, 543 (curwin->w_llist_ref == NULL) ? "cc" : "ll"); 544 do_cmdline_cmd(cbuf); 545 } 546 #endif 547 break; 548 549 550 /* CTRL-W g extended commands */ 551 case 'g': 552 case Ctrl_G: 553 CHECK_CMDWIN 554 #ifdef USE_ON_FLY_SCROLL 555 dont_scroll = TRUE; /* disallow scrolling here */ 556 #endif 557 ++no_mapping; 558 ++allow_keys; /* no mapping for xchar, but allow key codes */ 559 if (xchar == NUL) 560 xchar = safe_vgetc(); 561 #ifdef FEAT_LANGMAP 562 LANGMAP_ADJUST(xchar, TRUE); 563 #endif 564 --no_mapping; 565 --allow_keys; 566 #ifdef FEAT_CMDL_INFO 567 (void)add_to_showcmd(xchar); 568 #endif 569 switch (xchar) 570 { 571 #if defined(FEAT_QUICKFIX) 572 case '}': 573 xchar = Ctrl_RSB; 574 if (Prenum) 575 g_do_tagpreview = Prenum; 576 else 577 g_do_tagpreview = p_pvh; 578 /*FALLTHROUGH*/ 579 #endif 580 case ']': 581 case Ctrl_RSB: 582 #ifdef FEAT_VISUAL 583 reset_VIsual_and_resel(); /* stop Visual mode */ 584 #endif 585 if (Prenum) 586 postponed_split = Prenum; 587 else 588 postponed_split = -1; 589 590 /* Execute the command right here, required when 591 * "wincmd g}" was used in a function. */ 592 do_nv_ident('g', xchar); 593 break; 594 595 default: 596 beep_flush(); 597 break; 598 } 599 break; 600 601 default: beep_flush(); 602 break; 603 } 604 } 605 606 /* 607 * split the current window, implements CTRL-W s and :split 608 * 609 * "size" is the height or width for the new window, 0 to use half of current 610 * height or width. 611 * 612 * "flags": 613 * WSP_ROOM: require enough room for new window 614 * WSP_VERT: vertical split. 615 * WSP_TOP: open window at the top-left of the shell (help window). 616 * WSP_BOT: open window at the bottom-right of the shell (quickfix window). 617 * WSP_HELP: creating the help window, keep layout snapshot 618 * 619 * return FAIL for failure, OK otherwise 620 */ 621 int 622 win_split(size, flags) 623 int size; 624 int flags; 625 { 626 /* When the ":tab" modifier was used open a new tab page instead. */ 627 if (may_open_tabpage() == OK) 628 return OK; 629 630 /* Add flags from ":vertical", ":topleft" and ":botright". */ 631 flags |= cmdmod.split; 632 if ((flags & WSP_TOP) && (flags & WSP_BOT)) 633 { 634 EMSG(_("E442: Can't split topleft and botright at the same time")); 635 return FAIL; 636 } 637 638 /* When creating the help window make a snapshot of the window layout. 639 * Otherwise clear the snapshot, it's now invalid. */ 640 if (flags & WSP_HELP) 641 make_snapshot(); 642 else 643 clear_snapshot(curtab); 644 645 return win_split_ins(size, flags, NULL, 0); 646 } 647 648 /* 649 * When "newwin" is NULL: split the current window in two. 650 * When "newwin" is not NULL: insert this window at the far 651 * top/left/right/bottom. 652 * return FAIL for failure, OK otherwise 653 */ 654 static int 655 win_split_ins(size, flags, newwin, dir) 656 int size; 657 int flags; 658 win_T *newwin; 659 int dir; 660 { 661 win_T *wp = newwin; 662 win_T *oldwin; 663 int new_size = size; 664 int i; 665 int need_status = 0; 666 int do_equal = FALSE; 667 int needed; 668 int available; 669 int oldwin_height = 0; 670 int layout; 671 frame_T *frp, *curfrp; 672 int before; 673 674 if (flags & WSP_TOP) 675 oldwin = firstwin; 676 else if (flags & WSP_BOT) 677 oldwin = lastwin; 678 else 679 oldwin = curwin; 680 681 /* add a status line when p_ls == 1 and splitting the first window */ 682 if (lastwin == firstwin && p_ls == 1 && oldwin->w_status_height == 0) 683 { 684 if (oldwin->w_height <= p_wmh && newwin == NULL) 685 { 686 EMSG(_(e_noroom)); 687 return FAIL; 688 } 689 need_status = STATUS_HEIGHT; 690 } 691 692 #ifdef FEAT_VERTSPLIT 693 if (flags & WSP_VERT) 694 { 695 layout = FR_ROW; 696 do_equal = (p_ea && new_size == 0 && *p_ead != 'v'); 697 698 /* 699 * Check if we are able to split the current window and compute its 700 * width. 701 */ 702 needed = p_wmw + 1; 703 if (flags & WSP_ROOM) 704 needed += p_wiw - p_wmw; 705 if (p_ea || (flags & (WSP_BOT | WSP_TOP))) 706 { 707 available = topframe->fr_width; 708 needed += frame_minwidth(topframe, NULL); 709 } 710 else 711 available = oldwin->w_width; 712 if (available < needed && newwin == NULL) 713 { 714 EMSG(_(e_noroom)); 715 return FAIL; 716 } 717 if (new_size == 0) 718 new_size = oldwin->w_width / 2; 719 if (new_size > oldwin->w_width - p_wmw - 1) 720 new_size = oldwin->w_width - p_wmw - 1; 721 if (new_size < p_wmw) 722 new_size = p_wmw; 723 724 /* if it doesn't fit in the current window, need win_equal() */ 725 if (oldwin->w_width - new_size - 1 < p_wmw) 726 do_equal = TRUE; 727 728 /* We don't like to take lines for the new window from a 729 * 'winfixwidth' window. Take them from a window to the left or right 730 * instead, if possible. */ 731 if (oldwin->w_p_wfw) 732 win_setwidth_win(oldwin->w_width + new_size, oldwin); 733 } 734 else 735 #endif 736 { 737 layout = FR_COL; 738 do_equal = (p_ea && new_size == 0 739 #ifdef FEAT_VERTSPLIT 740 && *p_ead != 'h' 741 #endif 742 ); 743 744 /* 745 * Check if we are able to split the current window and compute its 746 * height. 747 */ 748 needed = p_wmh + STATUS_HEIGHT + need_status; 749 if (flags & WSP_ROOM) 750 needed += p_wh - p_wmh; 751 if (p_ea || (flags & (WSP_BOT | WSP_TOP))) 752 { 753 available = topframe->fr_height; 754 needed += frame_minheight(topframe, NULL); 755 } 756 else 757 { 758 available = oldwin->w_height; 759 needed += p_wmh; 760 } 761 if (available < needed && newwin == NULL) 762 { 763 EMSG(_(e_noroom)); 764 return FAIL; 765 } 766 oldwin_height = oldwin->w_height; 767 if (need_status) 768 { 769 oldwin->w_status_height = STATUS_HEIGHT; 770 oldwin_height -= STATUS_HEIGHT; 771 } 772 if (new_size == 0) 773 new_size = oldwin_height / 2; 774 775 if (new_size > oldwin_height - p_wmh - STATUS_HEIGHT) 776 new_size = oldwin_height - p_wmh - STATUS_HEIGHT; 777 if (new_size < p_wmh) 778 new_size = p_wmh; 779 780 /* if it doesn't fit in the current window, need win_equal() */ 781 if (oldwin_height - new_size - STATUS_HEIGHT < p_wmh) 782 do_equal = TRUE; 783 784 /* We don't like to take lines for the new window from a 785 * 'winfixheight' window. Take them from a window above or below 786 * instead, if possible. */ 787 if (oldwin->w_p_wfh) 788 { 789 win_setheight_win(oldwin->w_height + new_size + STATUS_HEIGHT, 790 oldwin); 791 oldwin_height = oldwin->w_height; 792 if (need_status) 793 oldwin_height -= STATUS_HEIGHT; 794 } 795 } 796 797 /* 798 * allocate new window structure and link it in the window list 799 */ 800 if ((flags & WSP_TOP) == 0 801 && ((flags & WSP_BOT) 802 || (flags & WSP_BELOW) 803 || (!(flags & WSP_ABOVE) 804 && ( 805 #ifdef FEAT_VERTSPLIT 806 (flags & WSP_VERT) ? p_spr : 807 #endif 808 p_sb)))) 809 { 810 /* new window below/right of current one */ 811 if (newwin == NULL) 812 wp = win_alloc(oldwin); 813 else 814 win_append(oldwin, wp); 815 } 816 else 817 { 818 if (newwin == NULL) 819 wp = win_alloc(oldwin->w_prev); 820 else 821 win_append(oldwin->w_prev, wp); 822 } 823 824 if (newwin == NULL) 825 { 826 if (wp == NULL) 827 return FAIL; 828 829 /* make the contents of the new window the same as the current one */ 830 win_init(wp, curwin); 831 } 832 833 /* 834 * Reorganise the tree of frames to insert the new window. 835 */ 836 if (flags & (WSP_TOP | WSP_BOT)) 837 { 838 #ifdef FEAT_VERTSPLIT 839 if ((topframe->fr_layout == FR_COL && (flags & WSP_VERT) == 0) 840 || (topframe->fr_layout == FR_ROW && (flags & WSP_VERT) != 0)) 841 #else 842 if (topframe->fr_layout == FR_COL) 843 #endif 844 { 845 curfrp = topframe->fr_child; 846 if (flags & WSP_BOT) 847 while (curfrp->fr_next != NULL) 848 curfrp = curfrp->fr_next; 849 } 850 else 851 curfrp = topframe; 852 before = (flags & WSP_TOP); 853 } 854 else 855 { 856 curfrp = oldwin->w_frame; 857 if (flags & WSP_BELOW) 858 before = FALSE; 859 else if (flags & WSP_ABOVE) 860 before = TRUE; 861 else 862 #ifdef FEAT_VERTSPLIT 863 if (flags & WSP_VERT) 864 before = !p_spr; 865 else 866 #endif 867 before = !p_sb; 868 } 869 if (curfrp->fr_parent == NULL || curfrp->fr_parent->fr_layout != layout) 870 { 871 /* Need to create a new frame in the tree to make a branch. */ 872 frp = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); 873 *frp = *curfrp; 874 curfrp->fr_layout = layout; 875 frp->fr_parent = curfrp; 876 frp->fr_next = NULL; 877 frp->fr_prev = NULL; 878 curfrp->fr_child = frp; 879 curfrp->fr_win = NULL; 880 curfrp = frp; 881 if (frp->fr_win != NULL) 882 oldwin->w_frame = frp; 883 else 884 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 885 frp->fr_parent = curfrp; 886 } 887 888 if (newwin == NULL) 889 { 890 /* Create a frame for the new window. */ 891 frp = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); 892 frp->fr_layout = FR_LEAF; 893 frp->fr_win = wp; 894 wp->w_frame = frp; 895 } 896 else 897 frp = newwin->w_frame; 898 frp->fr_parent = curfrp->fr_parent; 899 900 /* Insert the new frame at the right place in the frame list. */ 901 if (before) 902 frame_insert(curfrp, frp); 903 else 904 frame_append(curfrp, frp); 905 906 #ifdef FEAT_VERTSPLIT 907 if (flags & WSP_VERT) 908 { 909 wp->w_p_scr = curwin->w_p_scr; 910 if (need_status) 911 { 912 --oldwin->w_height; 913 oldwin->w_status_height = need_status; 914 } 915 if (flags & (WSP_TOP | WSP_BOT)) 916 { 917 /* set height and row of new window to full height */ 918 wp->w_winrow = tabline_height(); 919 wp->w_height = curfrp->fr_height - (p_ls > 0); 920 wp->w_status_height = (p_ls > 0); 921 } 922 else 923 { 924 /* height and row of new window is same as current window */ 925 wp->w_winrow = oldwin->w_winrow; 926 wp->w_height = oldwin->w_height; 927 wp->w_status_height = oldwin->w_status_height; 928 } 929 frp->fr_height = curfrp->fr_height; 930 931 /* "new_size" of the current window goes to the new window, use 932 * one column for the vertical separator */ 933 wp->w_width = new_size; 934 if (before) 935 wp->w_vsep_width = 1; 936 else 937 { 938 wp->w_vsep_width = oldwin->w_vsep_width; 939 oldwin->w_vsep_width = 1; 940 } 941 if (flags & (WSP_TOP | WSP_BOT)) 942 { 943 if (flags & WSP_BOT) 944 frame_add_vsep(curfrp); 945 /* Set width of neighbor frame */ 946 frame_new_width(curfrp, curfrp->fr_width 947 - (new_size + ((flags & WSP_TOP) != 0)), flags & WSP_TOP, 948 FALSE); 949 } 950 else 951 win_new_width(oldwin, oldwin->w_width - (new_size + 1)); 952 if (before) /* new window left of current one */ 953 { 954 wp->w_wincol = oldwin->w_wincol; 955 oldwin->w_wincol += new_size + 1; 956 } 957 else /* new window right of current one */ 958 wp->w_wincol = oldwin->w_wincol + oldwin->w_width + 1; 959 frame_fix_width(oldwin); 960 frame_fix_width(wp); 961 } 962 else 963 #endif 964 { 965 /* width and column of new window is same as current window */ 966 #ifdef FEAT_VERTSPLIT 967 if (flags & (WSP_TOP | WSP_BOT)) 968 { 969 wp->w_wincol = 0; 970 wp->w_width = Columns; 971 wp->w_vsep_width = 0; 972 } 973 else 974 { 975 wp->w_wincol = oldwin->w_wincol; 976 wp->w_width = oldwin->w_width; 977 wp->w_vsep_width = oldwin->w_vsep_width; 978 } 979 frp->fr_width = curfrp->fr_width; 980 #endif 981 982 /* "new_size" of the current window goes to the new window, use 983 * one row for the status line */ 984 win_new_height(wp, new_size); 985 if (flags & (WSP_TOP | WSP_BOT)) 986 frame_new_height(curfrp, curfrp->fr_height 987 - (new_size + STATUS_HEIGHT), flags & WSP_TOP, FALSE); 988 else 989 win_new_height(oldwin, oldwin_height - (new_size + STATUS_HEIGHT)); 990 if (before) /* new window above current one */ 991 { 992 wp->w_winrow = oldwin->w_winrow; 993 wp->w_status_height = STATUS_HEIGHT; 994 oldwin->w_winrow += wp->w_height + STATUS_HEIGHT; 995 } 996 else /* new window below current one */ 997 { 998 wp->w_winrow = oldwin->w_winrow + oldwin->w_height + STATUS_HEIGHT; 999 wp->w_status_height = oldwin->w_status_height; 1000 oldwin->w_status_height = STATUS_HEIGHT; 1001 } 1002 #ifdef FEAT_VERTSPLIT 1003 if (flags & WSP_BOT) 1004 frame_add_statusline(curfrp); 1005 #endif 1006 frame_fix_height(wp); 1007 frame_fix_height(oldwin); 1008 } 1009 1010 if (flags & (WSP_TOP | WSP_BOT)) 1011 (void)win_comp_pos(); 1012 1013 /* 1014 * Both windows need redrawing 1015 */ 1016 redraw_win_later(wp, NOT_VALID); 1017 wp->w_redr_status = TRUE; 1018 redraw_win_later(oldwin, NOT_VALID); 1019 oldwin->w_redr_status = TRUE; 1020 1021 if (need_status) 1022 { 1023 msg_row = Rows - 1; 1024 msg_col = sc_col; 1025 msg_clr_eos_force(); /* Old command/ruler may still be there */ 1026 comp_col(); 1027 msg_row = Rows - 1; 1028 msg_col = 0; /* put position back at start of line */ 1029 } 1030 1031 /* 1032 * make the new window the current window and redraw 1033 */ 1034 if (do_equal || dir != 0) 1035 win_equal(wp, TRUE, 1036 #ifdef FEAT_VERTSPLIT 1037 (flags & WSP_VERT) ? (dir == 'v' ? 'b' : 'h') 1038 : dir == 'h' ? 'b' : 1039 #endif 1040 'v'); 1041 1042 /* Don't change the window height/width to 'winheight' / 'winwidth' if a 1043 * size was given. */ 1044 #ifdef FEAT_VERTSPLIT 1045 if (flags & WSP_VERT) 1046 { 1047 i = p_wiw; 1048 if (size != 0) 1049 p_wiw = size; 1050 1051 # ifdef FEAT_GUI 1052 /* When 'guioptions' includes 'L' or 'R' may have to add scrollbars. */ 1053 if (gui.in_use) 1054 gui_init_which_components(NULL); 1055 # endif 1056 } 1057 else 1058 #endif 1059 { 1060 i = p_wh; 1061 if (size != 0) 1062 p_wh = size; 1063 } 1064 win_enter(wp, FALSE); 1065 #ifdef FEAT_VERTSPLIT 1066 if (flags & WSP_VERT) 1067 p_wiw = i; 1068 else 1069 #endif 1070 p_wh = i; 1071 1072 return OK; 1073 } 1074 1075 /* 1076 * Initialize window "newp" from window "oldp". 1077 * Used when splitting a window and when creating a new tab page. 1078 * The windows will both edit the same buffer. 1079 */ 1080 static void 1081 win_init(newp, oldp) 1082 win_T *newp; 1083 win_T *oldp; 1084 { 1085 int i; 1086 1087 newp->w_buffer = oldp->w_buffer; 1088 oldp->w_buffer->b_nwindows++; 1089 newp->w_cursor = oldp->w_cursor; 1090 newp->w_valid = 0; 1091 newp->w_curswant = oldp->w_curswant; 1092 newp->w_set_curswant = oldp->w_set_curswant; 1093 newp->w_topline = oldp->w_topline; 1094 #ifdef FEAT_DIFF 1095 newp->w_topfill = oldp->w_topfill; 1096 #endif 1097 newp->w_leftcol = oldp->w_leftcol; 1098 newp->w_pcmark = oldp->w_pcmark; 1099 newp->w_prev_pcmark = oldp->w_prev_pcmark; 1100 newp->w_alt_fnum = oldp->w_alt_fnum; 1101 newp->w_fraction = oldp->w_fraction; 1102 newp->w_prev_fraction_row = oldp->w_prev_fraction_row; 1103 #ifdef FEAT_JUMPLIST 1104 copy_jumplist(oldp, newp); 1105 #endif 1106 #ifdef FEAT_QUICKFIX 1107 copy_loclist(oldp, newp); 1108 #endif 1109 if (oldp->w_localdir != NULL) 1110 newp->w_localdir = vim_strsave(oldp->w_localdir); 1111 1112 /* Use the same argument list. */ 1113 newp->w_alist = oldp->w_alist; 1114 ++newp->w_alist->al_refcount; 1115 newp->w_arg_idx = oldp->w_arg_idx; 1116 1117 /* 1118 * copy tagstack and options from existing window 1119 */ 1120 for (i = 0; i < oldp->w_tagstacklen; i++) 1121 { 1122 newp->w_tagstack[i] = oldp->w_tagstack[i]; 1123 if (newp->w_tagstack[i].tagname != NULL) 1124 newp->w_tagstack[i].tagname = 1125 vim_strsave(newp->w_tagstack[i].tagname); 1126 } 1127 newp->w_tagstackidx = oldp->w_tagstackidx; 1128 newp->w_tagstacklen = oldp->w_tagstacklen; 1129 win_copy_options(oldp, newp); 1130 # ifdef FEAT_FOLDING 1131 copyFoldingState(oldp, newp); 1132 # endif 1133 } 1134 1135 #endif /* FEAT_WINDOWS */ 1136 1137 #if defined(FEAT_WINDOWS) || defined(PROTO) 1138 /* 1139 * Check if "win" is a pointer to an existing window. 1140 */ 1141 int 1142 win_valid(win) 1143 win_T *win; 1144 { 1145 win_T *wp; 1146 1147 if (win == NULL) 1148 return FALSE; 1149 for (wp = firstwin; wp != NULL; wp = wp->w_next) 1150 if (wp == win) 1151 return TRUE; 1152 return FALSE; 1153 } 1154 1155 /* 1156 * Return the number of windows. 1157 */ 1158 int 1159 win_count() 1160 { 1161 win_T *wp; 1162 int count = 0; 1163 1164 for (wp = firstwin; wp != NULL; wp = wp->w_next) 1165 ++count; 1166 return count; 1167 } 1168 1169 /* 1170 * Make "count" windows on the screen. 1171 * Return actual number of windows on the screen. 1172 * Must be called when there is just one window, filling the whole screen 1173 * (excluding the command line). 1174 */ 1175 /*ARGSUSED*/ 1176 int 1177 make_windows(count, vertical) 1178 int count; 1179 int vertical; /* split windows vertically if TRUE */ 1180 { 1181 int maxcount; 1182 int todo; 1183 1184 #ifdef FEAT_VERTSPLIT 1185 if (vertical) 1186 { 1187 /* Each windows needs at least 'winminwidth' lines and a separator 1188 * column. */ 1189 maxcount = (curwin->w_width + curwin->w_vsep_width 1190 - (p_wiw - p_wmw)) / (p_wmw + 1); 1191 } 1192 else 1193 #endif 1194 { 1195 /* Each window needs at least 'winminheight' lines and a status line. */ 1196 maxcount = (curwin->w_height + curwin->w_status_height 1197 - (p_wh - p_wmh)) / (p_wmh + STATUS_HEIGHT); 1198 } 1199 1200 if (maxcount < 2) 1201 maxcount = 2; 1202 if (count > maxcount) 1203 count = maxcount; 1204 1205 /* 1206 * add status line now, otherwise first window will be too big 1207 */ 1208 if (count > 1) 1209 last_status(TRUE); 1210 1211 #ifdef FEAT_AUTOCMD 1212 /* 1213 * Don't execute autocommands while creating the windows. Must do that 1214 * when putting the buffers in the windows. 1215 */ 1216 ++autocmd_block; 1217 #endif 1218 1219 /* todo is number of windows left to create */ 1220 for (todo = count - 1; todo > 0; --todo) 1221 #ifdef FEAT_VERTSPLIT 1222 if (vertical) 1223 { 1224 if (win_split(curwin->w_width - (curwin->w_width - todo) 1225 / (todo + 1) - 1, WSP_VERT | WSP_ABOVE) == FAIL) 1226 break; 1227 } 1228 else 1229 #endif 1230 { 1231 if (win_split(curwin->w_height - (curwin->w_height - todo 1232 * STATUS_HEIGHT) / (todo + 1) 1233 - STATUS_HEIGHT, WSP_ABOVE) == FAIL) 1234 break; 1235 } 1236 1237 #ifdef FEAT_AUTOCMD 1238 --autocmd_block; 1239 #endif 1240 1241 /* return actual number of windows */ 1242 return (count - todo); 1243 } 1244 1245 /* 1246 * Exchange current and next window 1247 */ 1248 static void 1249 win_exchange(Prenum) 1250 long Prenum; 1251 { 1252 frame_T *frp; 1253 frame_T *frp2; 1254 win_T *wp; 1255 win_T *wp2; 1256 int temp; 1257 1258 if (lastwin == firstwin) /* just one window */ 1259 { 1260 beep_flush(); 1261 return; 1262 } 1263 1264 #ifdef FEAT_GUI 1265 need_mouse_correct = TRUE; 1266 #endif 1267 1268 /* 1269 * find window to exchange with 1270 */ 1271 if (Prenum) 1272 { 1273 frp = curwin->w_frame->fr_parent->fr_child; 1274 while (frp != NULL && --Prenum > 0) 1275 frp = frp->fr_next; 1276 } 1277 else if (curwin->w_frame->fr_next != NULL) /* Swap with next */ 1278 frp = curwin->w_frame->fr_next; 1279 else /* Swap last window in row/col with previous */ 1280 frp = curwin->w_frame->fr_prev; 1281 1282 /* We can only exchange a window with another window, not with a frame 1283 * containing windows. */ 1284 if (frp == NULL || frp->fr_win == NULL || frp->fr_win == curwin) 1285 return; 1286 wp = frp->fr_win; 1287 1288 /* 1289 * 1. remove curwin from the list. Remember after which window it was in wp2 1290 * 2. insert curwin before wp in the list 1291 * if wp != wp2 1292 * 3. remove wp from the list 1293 * 4. insert wp after wp2 1294 * 5. exchange the status line height and vsep width. 1295 */ 1296 wp2 = curwin->w_prev; 1297 frp2 = curwin->w_frame->fr_prev; 1298 if (wp->w_prev != curwin) 1299 { 1300 win_remove(curwin, NULL); 1301 frame_remove(curwin->w_frame); 1302 win_append(wp->w_prev, curwin); 1303 frame_insert(frp, curwin->w_frame); 1304 } 1305 if (wp != wp2) 1306 { 1307 win_remove(wp, NULL); 1308 frame_remove(wp->w_frame); 1309 win_append(wp2, wp); 1310 if (frp2 == NULL) 1311 frame_insert(wp->w_frame->fr_parent->fr_child, wp->w_frame); 1312 else 1313 frame_append(frp2, wp->w_frame); 1314 } 1315 temp = curwin->w_status_height; 1316 curwin->w_status_height = wp->w_status_height; 1317 wp->w_status_height = temp; 1318 #ifdef FEAT_VERTSPLIT 1319 temp = curwin->w_vsep_width; 1320 curwin->w_vsep_width = wp->w_vsep_width; 1321 wp->w_vsep_width = temp; 1322 1323 /* If the windows are not in the same frame, exchange the sizes to avoid 1324 * messing up the window layout. Otherwise fix the frame sizes. */ 1325 if (curwin->w_frame->fr_parent != wp->w_frame->fr_parent) 1326 { 1327 temp = curwin->w_height; 1328 curwin->w_height = wp->w_height; 1329 wp->w_height = temp; 1330 temp = curwin->w_width; 1331 curwin->w_width = wp->w_width; 1332 wp->w_width = temp; 1333 } 1334 else 1335 { 1336 frame_fix_height(curwin); 1337 frame_fix_height(wp); 1338 frame_fix_width(curwin); 1339 frame_fix_width(wp); 1340 } 1341 #endif 1342 1343 (void)win_comp_pos(); /* recompute window positions */ 1344 1345 win_enter(wp, TRUE); 1346 redraw_later(CLEAR); 1347 } 1348 1349 /* 1350 * rotate windows: if upwards TRUE the second window becomes the first one 1351 * if upwards FALSE the first window becomes the second one 1352 */ 1353 static void 1354 win_rotate(upwards, count) 1355 int upwards; 1356 int count; 1357 { 1358 win_T *wp1; 1359 win_T *wp2; 1360 frame_T *frp; 1361 int n; 1362 1363 if (firstwin == lastwin) /* nothing to do */ 1364 { 1365 beep_flush(); 1366 return; 1367 } 1368 1369 #ifdef FEAT_GUI 1370 need_mouse_correct = TRUE; 1371 #endif 1372 1373 #ifdef FEAT_VERTSPLIT 1374 /* Check if all frames in this row/col have one window. */ 1375 for (frp = curwin->w_frame->fr_parent->fr_child; frp != NULL; 1376 frp = frp->fr_next) 1377 if (frp->fr_win == NULL) 1378 { 1379 EMSG(_("E443: Cannot rotate when another window is split")); 1380 return; 1381 } 1382 #endif 1383 1384 while (count--) 1385 { 1386 if (upwards) /* first window becomes last window */ 1387 { 1388 /* remove first window/frame from the list */ 1389 frp = curwin->w_frame->fr_parent->fr_child; 1390 wp1 = frp->fr_win; 1391 win_remove(wp1, NULL); 1392 frame_remove(frp); 1393 1394 /* find last frame and append removed window/frame after it */ 1395 for ( ; frp->fr_next != NULL; frp = frp->fr_next) 1396 ; 1397 win_append(frp->fr_win, wp1); 1398 frame_append(frp, wp1->w_frame); 1399 1400 wp2 = frp->fr_win; /* previously last window */ 1401 } 1402 else /* last window becomes first window */ 1403 { 1404 /* find last window/frame in the list and remove it */ 1405 for (frp = curwin->w_frame; frp->fr_next != NULL; 1406 frp = frp->fr_next) 1407 ; 1408 wp1 = frp->fr_win; 1409 wp2 = wp1->w_prev; /* will become last window */ 1410 win_remove(wp1, NULL); 1411 frame_remove(frp); 1412 1413 /* append the removed window/frame before the first in the list */ 1414 win_append(frp->fr_parent->fr_child->fr_win->w_prev, wp1); 1415 frame_insert(frp->fr_parent->fr_child, frp); 1416 } 1417 1418 /* exchange status height and vsep width of old and new last window */ 1419 n = wp2->w_status_height; 1420 wp2->w_status_height = wp1->w_status_height; 1421 wp1->w_status_height = n; 1422 frame_fix_height(wp1); 1423 frame_fix_height(wp2); 1424 #ifdef FEAT_VERTSPLIT 1425 n = wp2->w_vsep_width; 1426 wp2->w_vsep_width = wp1->w_vsep_width; 1427 wp1->w_vsep_width = n; 1428 frame_fix_width(wp1); 1429 frame_fix_width(wp2); 1430 #endif 1431 1432 /* recompute w_winrow and w_wincol for all windows */ 1433 (void)win_comp_pos(); 1434 } 1435 1436 redraw_later(CLEAR); 1437 } 1438 1439 /* 1440 * Move the current window to the very top/bottom/left/right of the screen. 1441 */ 1442 static void 1443 win_totop(size, flags) 1444 int size; 1445 int flags; 1446 { 1447 int dir; 1448 int height = curwin->w_height; 1449 1450 if (lastwin == firstwin) 1451 { 1452 beep_flush(); 1453 return; 1454 } 1455 1456 /* Remove the window and frame from the tree of frames. */ 1457 (void)winframe_remove(curwin, &dir, NULL); 1458 win_remove(curwin, NULL); 1459 last_status(FALSE); /* may need to remove last status line */ 1460 (void)win_comp_pos(); /* recompute window positions */ 1461 1462 /* Split a window on the desired side and put the window there. */ 1463 (void)win_split_ins(size, flags, curwin, dir); 1464 if (!(flags & WSP_VERT)) 1465 { 1466 win_setheight(height); 1467 if (p_ea) 1468 win_equal(curwin, TRUE, 'v'); 1469 } 1470 1471 #if defined(FEAT_GUI) && defined(FEAT_VERTSPLIT) 1472 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 1473 * scrollbars. Have to update them anyway. */ 1474 if (gui.in_use) 1475 { 1476 out_flush(); 1477 gui_init_which_components(NULL); 1478 gui_update_scrollbars(TRUE); 1479 } 1480 need_mouse_correct = TRUE; 1481 #endif 1482 1483 } 1484 1485 /* 1486 * Move window "win1" to below/right of "win2" and make "win1" the current 1487 * window. Only works within the same frame! 1488 */ 1489 void 1490 win_move_after(win1, win2) 1491 win_T *win1, *win2; 1492 { 1493 int height; 1494 1495 /* check if the arguments are reasonable */ 1496 if (win1 == win2) 1497 return; 1498 1499 /* check if there is something to do */ 1500 if (win2->w_next != win1) 1501 { 1502 /* may need move the status line/vertical separator of the last window 1503 * */ 1504 if (win1 == lastwin) 1505 { 1506 height = win1->w_prev->w_status_height; 1507 win1->w_prev->w_status_height = win1->w_status_height; 1508 win1->w_status_height = height; 1509 #ifdef FEAT_VERTSPLIT 1510 win1->w_prev->w_vsep_width = 0; 1511 win1->w_vsep_width = 1; 1512 #endif 1513 } 1514 else if (win2 == lastwin) 1515 { 1516 height = win1->w_status_height; 1517 win1->w_status_height = win2->w_status_height; 1518 win2->w_status_height = height; 1519 #ifdef FEAT_VERTSPLIT 1520 win2->w_vsep_width = 1; 1521 win1->w_vsep_width = 0; 1522 #endif 1523 } 1524 win_remove(win1, NULL); 1525 frame_remove(win1->w_frame); 1526 win_append(win2, win1); 1527 frame_append(win2->w_frame, win1->w_frame); 1528 1529 (void)win_comp_pos(); /* recompute w_winrow for all windows */ 1530 redraw_later(NOT_VALID); 1531 } 1532 win_enter(win1, FALSE); 1533 } 1534 1535 /* 1536 * Make all windows the same height. 1537 * 'next_curwin' will soon be the current window, make sure it has enough 1538 * rows. 1539 */ 1540 void 1541 win_equal(next_curwin, current, dir) 1542 win_T *next_curwin; /* pointer to current window to be or NULL */ 1543 int current; /* do only frame with current window */ 1544 int dir; /* 'v' for vertically, 'h' for horizontally, 1545 'b' for both, 0 for using p_ead */ 1546 { 1547 if (dir == 0) 1548 #ifdef FEAT_VERTSPLIT 1549 dir = *p_ead; 1550 #else 1551 dir = 'b'; 1552 #endif 1553 win_equal_rec(next_curwin == NULL ? curwin : next_curwin, current, 1554 topframe, dir, 0, tabline_height(), 1555 (int)Columns, topframe->fr_height); 1556 } 1557 1558 /* 1559 * Set a frame to a new position and height, spreading the available room 1560 * equally over contained frames. 1561 * The window "next_curwin" (if not NULL) should at least get the size from 1562 * 'winheight' and 'winwidth' if possible. 1563 */ 1564 static void 1565 win_equal_rec(next_curwin, current, topfr, dir, col, row, width, height) 1566 win_T *next_curwin; /* pointer to current window to be or NULL */ 1567 int current; /* do only frame with current window */ 1568 frame_T *topfr; /* frame to set size off */ 1569 int dir; /* 'v', 'h' or 'b', see win_equal() */ 1570 int col; /* horizontal position for frame */ 1571 int row; /* vertical position for frame */ 1572 int width; /* new width of frame */ 1573 int height; /* new height of frame */ 1574 { 1575 int n, m; 1576 int extra_sep = 0; 1577 int wincount, totwincount = 0; 1578 frame_T *fr; 1579 int next_curwin_size = 0; 1580 int room = 0; 1581 int new_size; 1582 int has_next_curwin = 0; 1583 int hnc; 1584 1585 if (topfr->fr_layout == FR_LEAF) 1586 { 1587 /* Set the width/height of this frame. 1588 * Redraw when size or position changes */ 1589 if (topfr->fr_height != height || topfr->fr_win->w_winrow != row 1590 #ifdef FEAT_VERTSPLIT 1591 || topfr->fr_width != width || topfr->fr_win->w_wincol != col 1592 #endif 1593 ) 1594 { 1595 topfr->fr_win->w_winrow = row; 1596 frame_new_height(topfr, height, FALSE, FALSE); 1597 #ifdef FEAT_VERTSPLIT 1598 topfr->fr_win->w_wincol = col; 1599 frame_new_width(topfr, width, FALSE, FALSE); 1600 #endif 1601 redraw_all_later(CLEAR); 1602 } 1603 } 1604 #ifdef FEAT_VERTSPLIT 1605 else if (topfr->fr_layout == FR_ROW) 1606 { 1607 topfr->fr_width = width; 1608 topfr->fr_height = height; 1609 1610 if (dir != 'v') /* equalize frame widths */ 1611 { 1612 /* Compute the maximum number of windows horizontally in this 1613 * frame. */ 1614 n = frame_minwidth(topfr, NOWIN); 1615 /* add one for the rightmost window, it doesn't have a separator */ 1616 if (col + width == Columns) 1617 extra_sep = 1; 1618 else 1619 extra_sep = 0; 1620 totwincount = (n + extra_sep) / (p_wmw + 1); 1621 has_next_curwin = frame_has_win(topfr, next_curwin); 1622 1623 /* 1624 * Compute width for "next_curwin" window and room available for 1625 * other windows. 1626 * "m" is the minimal width when counting p_wiw for "next_curwin". 1627 */ 1628 m = frame_minwidth(topfr, next_curwin); 1629 room = width - m; 1630 if (room < 0) 1631 { 1632 next_curwin_size = p_wiw + room; 1633 room = 0; 1634 } 1635 else 1636 { 1637 next_curwin_size = -1; 1638 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 1639 { 1640 /* If 'winfixwidth' set keep the window width if 1641 * possible. 1642 * Watch out for this window being the next_curwin. */ 1643 if (frame_fixed_width(fr)) 1644 { 1645 n = frame_minwidth(fr, NOWIN); 1646 new_size = fr->fr_width; 1647 if (frame_has_win(fr, next_curwin)) 1648 { 1649 room += p_wiw - p_wmw; 1650 next_curwin_size = 0; 1651 if (new_size < p_wiw) 1652 new_size = p_wiw; 1653 } 1654 else 1655 /* These windows don't use up room. */ 1656 totwincount -= (n + (fr->fr_next == NULL 1657 ? extra_sep : 0)) / (p_wmw + 1); 1658 room -= new_size - n; 1659 if (room < 0) 1660 { 1661 new_size += room; 1662 room = 0; 1663 } 1664 fr->fr_newwidth = new_size; 1665 } 1666 } 1667 if (next_curwin_size == -1) 1668 { 1669 if (!has_next_curwin) 1670 next_curwin_size = 0; 1671 else if (totwincount > 1 1672 && (room + (totwincount - 2)) 1673 / (totwincount - 1) > p_wiw) 1674 { 1675 next_curwin_size = (room + p_wiw + totwincount * p_wmw 1676 + (totwincount - 1)) / totwincount; 1677 room -= next_curwin_size - p_wiw; 1678 } 1679 else 1680 next_curwin_size = p_wiw; 1681 } 1682 } 1683 1684 if (has_next_curwin) 1685 --totwincount; /* don't count curwin */ 1686 } 1687 1688 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 1689 { 1690 n = m = 0; 1691 wincount = 1; 1692 if (fr->fr_next == NULL) 1693 /* last frame gets all that remains (avoid roundoff error) */ 1694 new_size = width; 1695 else if (dir == 'v') 1696 new_size = fr->fr_width; 1697 else if (frame_fixed_width(fr)) 1698 { 1699 new_size = fr->fr_newwidth; 1700 wincount = 0; /* doesn't count as a sizeable window */ 1701 } 1702 else 1703 { 1704 /* Compute the maximum number of windows horiz. in "fr". */ 1705 n = frame_minwidth(fr, NOWIN); 1706 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 1707 / (p_wmw + 1); 1708 m = frame_minwidth(fr, next_curwin); 1709 if (has_next_curwin) 1710 hnc = frame_has_win(fr, next_curwin); 1711 else 1712 hnc = FALSE; 1713 if (hnc) /* don't count next_curwin */ 1714 --wincount; 1715 if (totwincount == 0) 1716 new_size = room; 1717 else 1718 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 1719 / totwincount; 1720 if (hnc) /* add next_curwin size */ 1721 { 1722 next_curwin_size -= p_wiw - (m - n); 1723 new_size += next_curwin_size; 1724 room -= new_size - next_curwin_size; 1725 } 1726 else 1727 room -= new_size; 1728 new_size += n; 1729 } 1730 1731 /* Skip frame that is full width when splitting or closing a 1732 * window, unless equalizing all frames. */ 1733 if (!current || dir != 'v' || topfr->fr_parent != NULL 1734 || (new_size != fr->fr_width) 1735 || frame_has_win(fr, next_curwin)) 1736 win_equal_rec(next_curwin, current, fr, dir, col, row, 1737 new_size, height); 1738 col += new_size; 1739 width -= new_size; 1740 totwincount -= wincount; 1741 } 1742 } 1743 #endif 1744 else /* topfr->fr_layout == FR_COL */ 1745 { 1746 #ifdef FEAT_VERTSPLIT 1747 topfr->fr_width = width; 1748 #endif 1749 topfr->fr_height = height; 1750 1751 if (dir != 'h') /* equalize frame heights */ 1752 { 1753 /* Compute maximum number of windows vertically in this frame. */ 1754 n = frame_minheight(topfr, NOWIN); 1755 /* add one for the bottom window if it doesn't have a statusline */ 1756 if (row + height == cmdline_row && p_ls == 0) 1757 extra_sep = 1; 1758 else 1759 extra_sep = 0; 1760 totwincount = (n + extra_sep) / (p_wmh + 1); 1761 has_next_curwin = frame_has_win(topfr, next_curwin); 1762 1763 /* 1764 * Compute height for "next_curwin" window and room available for 1765 * other windows. 1766 * "m" is the minimal height when counting p_wh for "next_curwin". 1767 */ 1768 m = frame_minheight(topfr, next_curwin); 1769 room = height - m; 1770 if (room < 0) 1771 { 1772 /* The room is less then 'winheight', use all space for the 1773 * current window. */ 1774 next_curwin_size = p_wh + room; 1775 room = 0; 1776 } 1777 else 1778 { 1779 next_curwin_size = -1; 1780 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 1781 { 1782 /* If 'winfixheight' set keep the window height if 1783 * possible. 1784 * Watch out for this window being the next_curwin. */ 1785 if (frame_fixed_height(fr)) 1786 { 1787 n = frame_minheight(fr, NOWIN); 1788 new_size = fr->fr_height; 1789 if (frame_has_win(fr, next_curwin)) 1790 { 1791 room += p_wh - p_wmh; 1792 next_curwin_size = 0; 1793 if (new_size < p_wh) 1794 new_size = p_wh; 1795 } 1796 else 1797 /* These windows don't use up room. */ 1798 totwincount -= (n + (fr->fr_next == NULL 1799 ? extra_sep : 0)) / (p_wmh + 1); 1800 room -= new_size - n; 1801 if (room < 0) 1802 { 1803 new_size += room; 1804 room = 0; 1805 } 1806 fr->fr_newheight = new_size; 1807 } 1808 } 1809 if (next_curwin_size == -1) 1810 { 1811 if (!has_next_curwin) 1812 next_curwin_size = 0; 1813 else if (totwincount > 1 1814 && (room + (totwincount - 2)) 1815 / (totwincount - 1) > p_wh) 1816 { 1817 next_curwin_size = (room + p_wh + totwincount * p_wmh 1818 + (totwincount - 1)) / totwincount; 1819 room -= next_curwin_size - p_wh; 1820 } 1821 else 1822 next_curwin_size = p_wh; 1823 } 1824 } 1825 1826 if (has_next_curwin) 1827 --totwincount; /* don't count curwin */ 1828 } 1829 1830 for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) 1831 { 1832 n = m = 0; 1833 wincount = 1; 1834 if (fr->fr_next == NULL) 1835 /* last frame gets all that remains (avoid roundoff error) */ 1836 new_size = height; 1837 else if (dir == 'h') 1838 new_size = fr->fr_height; 1839 else if (frame_fixed_height(fr)) 1840 { 1841 new_size = fr->fr_newheight; 1842 wincount = 0; /* doesn't count as a sizeable window */ 1843 } 1844 else 1845 { 1846 /* Compute the maximum number of windows vert. in "fr". */ 1847 n = frame_minheight(fr, NOWIN); 1848 wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) 1849 / (p_wmh + 1); 1850 m = frame_minheight(fr, next_curwin); 1851 if (has_next_curwin) 1852 hnc = frame_has_win(fr, next_curwin); 1853 else 1854 hnc = FALSE; 1855 if (hnc) /* don't count next_curwin */ 1856 --wincount; 1857 if (totwincount == 0) 1858 new_size = room; 1859 else 1860 new_size = (wincount * room + ((unsigned)totwincount >> 1)) 1861 / totwincount; 1862 if (hnc) /* add next_curwin size */ 1863 { 1864 next_curwin_size -= p_wh - (m - n); 1865 new_size += next_curwin_size; 1866 room -= new_size - next_curwin_size; 1867 } 1868 else 1869 room -= new_size; 1870 new_size += n; 1871 } 1872 /* Skip frame that is full width when splitting or closing a 1873 * window, unless equalizing all frames. */ 1874 if (!current || dir != 'h' || topfr->fr_parent != NULL 1875 || (new_size != fr->fr_height) 1876 || frame_has_win(fr, next_curwin)) 1877 win_equal_rec(next_curwin, current, fr, dir, col, row, 1878 width, new_size); 1879 row += new_size; 1880 height -= new_size; 1881 totwincount -= wincount; 1882 } 1883 } 1884 } 1885 1886 /* 1887 * close all windows for buffer 'buf' 1888 */ 1889 void 1890 close_windows(buf, keep_curwin) 1891 buf_T *buf; 1892 int keep_curwin; /* don't close "curwin" */ 1893 { 1894 win_T *wp; 1895 tabpage_T *tp, *nexttp; 1896 int h = tabline_height(); 1897 1898 ++RedrawingDisabled; 1899 1900 for (wp = firstwin; wp != NULL && lastwin != firstwin; ) 1901 { 1902 if (wp->w_buffer == buf && (!keep_curwin || wp != curwin)) 1903 { 1904 win_close(wp, FALSE); 1905 1906 /* Start all over, autocommands may change the window layout. */ 1907 wp = firstwin; 1908 } 1909 else 1910 wp = wp->w_next; 1911 } 1912 1913 /* Also check windows in other tab pages. */ 1914 for (tp = first_tabpage; tp != NULL; tp = nexttp) 1915 { 1916 nexttp = tp->tp_next; 1917 if (tp != curtab) 1918 for (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next) 1919 if (wp->w_buffer == buf) 1920 { 1921 win_close_othertab(wp, FALSE, tp); 1922 1923 /* Start all over, the tab page may be closed and 1924 * autocommands may change the window layout. */ 1925 nexttp = first_tabpage; 1926 break; 1927 } 1928 } 1929 1930 --RedrawingDisabled; 1931 1932 if (h != tabline_height()) 1933 shell_new_rows(); 1934 } 1935 1936 /* 1937 * Return TRUE if the current window is the only window that exists. 1938 * Returns FALSE if there is a window, possibly in another tab page. 1939 */ 1940 static int 1941 last_window() 1942 { 1943 return (lastwin == firstwin && first_tabpage->tp_next == NULL); 1944 } 1945 1946 /* 1947 * Close window "win". 1948 * If "free_buf" is TRUE related buffer may be unloaded. 1949 * 1950 * called by :quit, :close, :xit, :wq and findtag() 1951 */ 1952 void 1953 win_close(win, free_buf) 1954 win_T *win; 1955 int free_buf; 1956 { 1957 win_T *wp; 1958 buf_T *old_curbuf = curbuf; 1959 #ifdef FEAT_AUTOCMD 1960 int other_buffer = FALSE; 1961 #endif 1962 int close_curwin = FALSE; 1963 int dir; 1964 int help_window = FALSE; 1965 1966 if (last_window()) 1967 { 1968 EMSG(_("E444: Cannot close last window")); 1969 return; 1970 } 1971 1972 /* When closing the help window, try restoring a snapshot after closing 1973 * the window. Otherwise clear the snapshot, it's now invalid. */ 1974 if (win->w_buffer->b_help) 1975 help_window = TRUE; 1976 else 1977 clear_snapshot(curtab); 1978 1979 #ifdef FEAT_AUTOCMD 1980 if (win == curwin) 1981 { 1982 /* 1983 * Guess which window is going to be the new current window. 1984 * This may change because of the autocommands (sigh). 1985 */ 1986 wp = frame2win(win_altframe(win, NULL)); 1987 1988 /* 1989 * Be careful: If autocommands delete the window, return now. 1990 */ 1991 if (wp->w_buffer != curbuf) 1992 { 1993 other_buffer = TRUE; 1994 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 1995 if (!win_valid(win) || last_window()) 1996 return; 1997 } 1998 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 1999 if (!win_valid(win) || last_window()) 2000 return; 2001 # ifdef FEAT_EVAL 2002 /* autocmds may abort script processing */ 2003 if (aborting()) 2004 return; 2005 # endif 2006 } 2007 #endif 2008 2009 /* 2010 * Close the link to the buffer. 2011 */ 2012 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0); 2013 /* Autocommands may have closed the window already, or closed the only 2014 * other window. */ 2015 if (!win_valid(win) || last_window()) 2016 return; 2017 2018 /* Free the memory used for the window. */ 2019 wp = win_free_mem(win, &dir, NULL); 2020 2021 /* When closing the last window in a tab page go to another tab page. */ 2022 if (wp == NULL) 2023 { 2024 tabpage_T *ptp = NULL; 2025 tabpage_T *tp; 2026 tabpage_T *atp = alt_tabpage(); 2027 2028 for (tp = first_tabpage; tp != curtab; tp = tp->tp_next) 2029 ptp = tp; 2030 if (tp == NULL) 2031 { 2032 EMSG2(_(e_intern2), "win_close()"); 2033 return; 2034 } 2035 if (ptp == NULL) 2036 first_tabpage = tp->tp_next; 2037 else 2038 ptp->tp_next = tp->tp_next; 2039 free_tabpage(tp); 2040 2041 /* We don't do the window resizing stuff, let enter_tabpage() take 2042 * care of entering a window in another tab page. */ 2043 enter_tabpage(atp, old_curbuf); 2044 return; 2045 } 2046 2047 /* Make sure curwin isn't invalid. It can cause severe trouble when 2048 * printing an error message. For win_equal() curbuf needs to be valid 2049 * too. */ 2050 else if (win == curwin) 2051 { 2052 curwin = wp; 2053 #ifdef FEAT_QUICKFIX 2054 if (wp->w_p_pvw || bt_quickfix(wp->w_buffer)) 2055 { 2056 /* 2057 * The cursor goes to the preview or the quickfix window, try 2058 * finding another window to go to. 2059 */ 2060 for (;;) 2061 { 2062 if (wp->w_next == NULL) 2063 wp = firstwin; 2064 else 2065 wp = wp->w_next; 2066 if (wp == curwin) 2067 break; 2068 if (!wp->w_p_pvw && !bt_quickfix(wp->w_buffer)) 2069 { 2070 curwin = wp; 2071 break; 2072 } 2073 } 2074 } 2075 #endif 2076 curbuf = curwin->w_buffer; 2077 close_curwin = TRUE; 2078 } 2079 if (p_ea 2080 #ifdef FEAT_VERTSPLIT 2081 && (*p_ead == 'b' || *p_ead == dir) 2082 #endif 2083 ) 2084 win_equal(curwin, TRUE, 2085 #ifdef FEAT_VERTSPLIT 2086 dir 2087 #else 2088 0 2089 #endif 2090 ); 2091 else 2092 win_comp_pos(); 2093 if (close_curwin) 2094 { 2095 win_enter_ext(wp, FALSE, TRUE); 2096 #ifdef FEAT_AUTOCMD 2097 if (other_buffer) 2098 /* careful: after this wp and win may be invalid! */ 2099 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 2100 #endif 2101 } 2102 2103 /* 2104 * If last window has a status line now and we don't want one, 2105 * remove the status line. 2106 */ 2107 last_status(FALSE); 2108 2109 /* After closing the help window, try restoring the window layout from 2110 * before it was opened. */ 2111 if (help_window) 2112 restore_snapshot(close_curwin); 2113 2114 #if defined(FEAT_GUI) && defined(FEAT_VERTSPLIT) 2115 /* When 'guioptions' includes 'L' or 'R' may have to remove scrollbars. */ 2116 if (gui.in_use && !win_hasvertsplit()) 2117 gui_init_which_components(NULL); 2118 #endif 2119 2120 redraw_all_later(NOT_VALID); 2121 } 2122 2123 /* 2124 * Close window "win" in tab page "tp", which is not the current tab page. 2125 * This may be the last window ih that tab page and result in closing the tab, 2126 * thus "tp" may become invalid! 2127 * Called must check if buffer is hidden. 2128 */ 2129 void 2130 win_close_othertab(win, free_buf, tp) 2131 win_T *win; 2132 int free_buf; 2133 tabpage_T *tp; 2134 { 2135 win_T *wp; 2136 int dir; 2137 tabpage_T *ptp = NULL; 2138 2139 /* Close the link to the buffer. */ 2140 close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0); 2141 2142 /* Careful: Autocommands may have closed the tab page or made it the 2143 * current tab page. */ 2144 for (ptp = first_tabpage; ptp != NULL && ptp != tp; ptp = ptp->tp_next) 2145 ; 2146 if (ptp == NULL || tp == curtab) 2147 return; 2148 2149 /* Autocommands may have closed the window already. */ 2150 for (wp = tp->tp_firstwin; wp != NULL && wp != win; wp = wp->w_next) 2151 ; 2152 if (wp == NULL) 2153 return; 2154 2155 /* Free the memory used for the window. */ 2156 wp = win_free_mem(win, &dir, tp); 2157 2158 /* When closing the last window in a tab page remove the tab page. */ 2159 if (wp == NULL) 2160 { 2161 if (tp == first_tabpage) 2162 first_tabpage = tp->tp_next; 2163 else 2164 { 2165 for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tp; 2166 ptp = ptp->tp_next) 2167 ; 2168 if (ptp == NULL) 2169 { 2170 EMSG2(_(e_intern2), "win_close_othertab()"); 2171 return; 2172 } 2173 ptp->tp_next = tp->tp_next; 2174 } 2175 vim_free(tp); 2176 } 2177 } 2178 2179 /* 2180 * Free the memory used for a window. 2181 * Returns a pointer to the window that got the freed up space. 2182 */ 2183 static win_T * 2184 win_free_mem(win, dirp, tp) 2185 win_T *win; 2186 int *dirp; /* set to 'v' or 'h' for direction if 'ea' */ 2187 tabpage_T *tp; /* tab page "win" is in, NULL for current */ 2188 { 2189 frame_T *frp; 2190 win_T *wp; 2191 2192 #ifdef FEAT_FOLDING 2193 clearFolding(win); 2194 #endif 2195 2196 /* reduce the reference count to the argument list. */ 2197 alist_unlink(win->w_alist); 2198 2199 /* Remove the window and its frame from the tree of frames. */ 2200 frp = win->w_frame; 2201 wp = winframe_remove(win, dirp, tp); 2202 vim_free(frp); 2203 win_free(win, tp); 2204 2205 return wp; 2206 } 2207 2208 #if defined(EXITFREE) || defined(PROTO) 2209 void 2210 win_free_all() 2211 { 2212 int dummy; 2213 2214 # ifdef FEAT_WINDOWS 2215 while (first_tabpage->tp_next != NULL) 2216 tabpage_close(TRUE); 2217 # endif 2218 2219 while (firstwin != NULL) 2220 (void)win_free_mem(firstwin, &dummy, NULL); 2221 } 2222 #endif 2223 2224 /* 2225 * Remove a window and its frame from the tree of frames. 2226 * Returns a pointer to the window that got the freed up space. 2227 */ 2228 /*ARGSUSED*/ 2229 static win_T * 2230 winframe_remove(win, dirp, tp) 2231 win_T *win; 2232 int *dirp; /* set to 'v' or 'h' for direction if 'ea' */ 2233 tabpage_T *tp; /* tab page "win" is in, NULL for current */ 2234 { 2235 frame_T *frp, *frp2, *frp3; 2236 frame_T *frp_close = win->w_frame; 2237 win_T *wp; 2238 int old_size = 0; 2239 2240 /* 2241 * If there is only one window there is nothing to remove. 2242 */ 2243 if (tp == NULL ? firstwin == lastwin : tp->tp_firstwin == tp->tp_lastwin) 2244 return NULL; 2245 2246 /* 2247 * Remove the window from its frame. 2248 */ 2249 frp2 = win_altframe(win, tp); 2250 wp = frame2win(frp2); 2251 2252 /* Remove this frame from the list of frames. */ 2253 frame_remove(frp_close); 2254 2255 #ifdef FEAT_VERTSPLIT 2256 if (frp_close->fr_parent->fr_layout == FR_COL) 2257 { 2258 #endif 2259 /* When 'winfixheight' is set, remember its old size and restore 2260 * it later (it's a simplistic solution...). Don't do this if the 2261 * window will occupy the full height of the screen. */ 2262 if (frp2->fr_win != NULL 2263 && (frp2->fr_next != NULL || frp2->fr_prev != NULL) 2264 && frp2->fr_win->w_p_wfh) 2265 old_size = frp2->fr_win->w_height; 2266 frame_new_height(frp2, frp2->fr_height + frp_close->fr_height, 2267 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2268 if (old_size != 0) 2269 win_setheight_win(old_size, frp2->fr_win); 2270 #ifdef FEAT_VERTSPLIT 2271 *dirp = 'v'; 2272 } 2273 else 2274 { 2275 /* When 'winfixwidth' is set, remember its old size and restore 2276 * it later (it's a simplistic solution...). Don't do this if the 2277 * window will occupy the full width of the screen. */ 2278 if (frp2->fr_win != NULL 2279 && (frp2->fr_next != NULL || frp2->fr_prev != NULL) 2280 && frp2->fr_win->w_p_wfw) 2281 old_size = frp2->fr_win->w_width; 2282 frame_new_width(frp2, frp2->fr_width + frp_close->fr_width, 2283 frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); 2284 if (old_size != 0) 2285 win_setwidth_win(old_size, frp2->fr_win); 2286 *dirp = 'h'; 2287 } 2288 #endif 2289 2290 /* If rows/columns go to a window below/right its positions need to be 2291 * updated. Can only be done after the sizes have been updated. */ 2292 if (frp2 == frp_close->fr_next) 2293 { 2294 int row = win->w_winrow; 2295 int col = W_WINCOL(win); 2296 2297 frame_comp_pos(frp2, &row, &col); 2298 } 2299 2300 if (frp2->fr_next == NULL && frp2->fr_prev == NULL) 2301 { 2302 /* There is no other frame in this list, move its info to the parent 2303 * and remove it. */ 2304 frp2->fr_parent->fr_layout = frp2->fr_layout; 2305 frp2->fr_parent->fr_child = frp2->fr_child; 2306 for (frp = frp2->fr_child; frp != NULL; frp = frp->fr_next) 2307 frp->fr_parent = frp2->fr_parent; 2308 frp2->fr_parent->fr_win = frp2->fr_win; 2309 if (frp2->fr_win != NULL) 2310 frp2->fr_win->w_frame = frp2->fr_parent; 2311 frp = frp2->fr_parent; 2312 vim_free(frp2); 2313 2314 frp2 = frp->fr_parent; 2315 if (frp2 != NULL && frp2->fr_layout == frp->fr_layout) 2316 { 2317 /* The frame above the parent has the same layout, have to merge 2318 * the frames into this list. */ 2319 if (frp2->fr_child == frp) 2320 frp2->fr_child = frp->fr_child; 2321 frp->fr_child->fr_prev = frp->fr_prev; 2322 if (frp->fr_prev != NULL) 2323 frp->fr_prev->fr_next = frp->fr_child; 2324 for (frp3 = frp->fr_child; ; frp3 = frp3->fr_next) 2325 { 2326 frp3->fr_parent = frp2; 2327 if (frp3->fr_next == NULL) 2328 { 2329 frp3->fr_next = frp->fr_next; 2330 if (frp->fr_next != NULL) 2331 frp->fr_next->fr_prev = frp3; 2332 break; 2333 } 2334 } 2335 vim_free(frp); 2336 } 2337 } 2338 2339 return wp; 2340 } 2341 2342 /* 2343 * Find out which frame is going to get the freed up space when "win" is 2344 * closed. 2345 * if 'splitbelow'/'splitleft' the space goes to the window above/left. 2346 * if 'nosplitbelow'/'nosplitleft' the space goes to the window below/right. 2347 * This makes opening a window and closing it immediately keep the same window 2348 * layout. 2349 */ 2350 static frame_T * 2351 win_altframe(win, tp) 2352 win_T *win; 2353 tabpage_T *tp; /* tab page "win" is in, NULL for current */ 2354 { 2355 frame_T *frp; 2356 int b; 2357 2358 if (tp == NULL ? firstwin == lastwin : tp->tp_firstwin == tp->tp_lastwin) 2359 /* Last window in this tab page, will go to next tab page. */ 2360 return alt_tabpage()->tp_curwin->w_frame; 2361 2362 frp = win->w_frame; 2363 #ifdef FEAT_VERTSPLIT 2364 if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW) 2365 b = p_spr; 2366 else 2367 #endif 2368 b = p_sb; 2369 if ((!b && frp->fr_next != NULL) || frp->fr_prev == NULL) 2370 return frp->fr_next; 2371 return frp->fr_prev; 2372 } 2373 2374 /* 2375 * Return the tabpage that will be used if the current one is closed. 2376 */ 2377 static tabpage_T * 2378 alt_tabpage() 2379 { 2380 tabpage_T *tp; 2381 2382 /* Use the next tab page if possible. */ 2383 if (curtab->tp_next != NULL) 2384 return curtab->tp_next; 2385 2386 /* Find the last but one tab page. */ 2387 for (tp = first_tabpage; tp->tp_next != curtab; tp = tp->tp_next) 2388 ; 2389 return tp; 2390 } 2391 2392 /* 2393 * Find the left-upper window in frame "frp". 2394 */ 2395 static win_T * 2396 frame2win(frp) 2397 frame_T *frp; 2398 { 2399 while (frp->fr_win == NULL) 2400 frp = frp->fr_child; 2401 return frp->fr_win; 2402 } 2403 2404 /* 2405 * Return TRUE if frame "frp" contains window "wp". 2406 */ 2407 static int 2408 frame_has_win(frp, wp) 2409 frame_T *frp; 2410 win_T *wp; 2411 { 2412 frame_T *p; 2413 2414 if (frp->fr_layout == FR_LEAF) 2415 return frp->fr_win == wp; 2416 2417 for (p = frp->fr_child; p != NULL; p = p->fr_next) 2418 if (frame_has_win(p, wp)) 2419 return TRUE; 2420 return FALSE; 2421 } 2422 2423 /* 2424 * Set a new height for a frame. Recursively sets the height for contained 2425 * frames and windows. Caller must take care of positions. 2426 */ 2427 static void 2428 frame_new_height(topfrp, height, topfirst, wfh) 2429 frame_T *topfrp; 2430 int height; 2431 int topfirst; /* resize topmost contained frame first */ 2432 int wfh; /* obey 'winfixheight' when there is a choice; 2433 may cause the height not to be set */ 2434 { 2435 frame_T *frp; 2436 int extra_lines; 2437 int h; 2438 2439 if (topfrp->fr_win != NULL) 2440 { 2441 /* Simple case: just one window. */ 2442 win_new_height(topfrp->fr_win, 2443 height - topfrp->fr_win->w_status_height); 2444 } 2445 #ifdef FEAT_VERTSPLIT 2446 else if (topfrp->fr_layout == FR_ROW) 2447 { 2448 do 2449 { 2450 /* All frames in this row get the same new height. */ 2451 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 2452 { 2453 frame_new_height(frp, height, topfirst, wfh); 2454 if (frp->fr_height > height) 2455 { 2456 /* Could not fit the windows, make the whole row higher. */ 2457 height = frp->fr_height; 2458 break; 2459 } 2460 } 2461 } 2462 while (frp != NULL); 2463 } 2464 #endif 2465 else /* fr_layout == FR_COL */ 2466 { 2467 /* Complicated case: Resize a column of frames. Resize the bottom 2468 * frame first, frames above that when needed. */ 2469 2470 frp = topfrp->fr_child; 2471 if (wfh) 2472 /* Advance past frames with one window with 'wfh' set. */ 2473 while (frame_fixed_height(frp)) 2474 { 2475 frp = frp->fr_next; 2476 if (frp == NULL) 2477 return; /* no frame without 'wfh', give up */ 2478 } 2479 if (!topfirst) 2480 { 2481 /* Find the bottom frame of this column */ 2482 while (frp->fr_next != NULL) 2483 frp = frp->fr_next; 2484 if (wfh) 2485 /* Advance back for frames with one window with 'wfh' set. */ 2486 while (frame_fixed_height(frp)) 2487 frp = frp->fr_prev; 2488 } 2489 2490 extra_lines = height - topfrp->fr_height; 2491 if (extra_lines < 0) 2492 { 2493 /* reduce height of contained frames, bottom or top frame first */ 2494 while (frp != NULL) 2495 { 2496 h = frame_minheight(frp, NULL); 2497 if (frp->fr_height + extra_lines < h) 2498 { 2499 extra_lines += frp->fr_height - h; 2500 frame_new_height(frp, h, topfirst, wfh); 2501 } 2502 else 2503 { 2504 frame_new_height(frp, frp->fr_height + extra_lines, 2505 topfirst, wfh); 2506 break; 2507 } 2508 if (topfirst) 2509 { 2510 do 2511 frp = frp->fr_next; 2512 while (wfh && frp != NULL && frame_fixed_height(frp)); 2513 } 2514 else 2515 { 2516 do 2517 frp = frp->fr_prev; 2518 while (wfh && frp != NULL && frame_fixed_height(frp)); 2519 } 2520 /* Increase "height" if we could not reduce enough frames. */ 2521 if (frp == NULL) 2522 height -= extra_lines; 2523 } 2524 } 2525 else if (extra_lines > 0) 2526 { 2527 /* increase height of bottom or top frame */ 2528 frame_new_height(frp, frp->fr_height + extra_lines, topfirst, wfh); 2529 } 2530 } 2531 topfrp->fr_height = height; 2532 } 2533 2534 /* 2535 * Return TRUE if height of frame "frp" should not be changed because of 2536 * the 'winfixheight' option. 2537 */ 2538 static int 2539 frame_fixed_height(frp) 2540 frame_T *frp; 2541 { 2542 /* frame with one window: fixed height if 'winfixheight' set. */ 2543 if (frp->fr_win != NULL) 2544 return frp->fr_win->w_p_wfh; 2545 2546 if (frp->fr_layout == FR_ROW) 2547 { 2548 /* The frame is fixed height if one of the frames in the row is fixed 2549 * height. */ 2550 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2551 if (frame_fixed_height(frp)) 2552 return TRUE; 2553 return FALSE; 2554 } 2555 2556 /* frp->fr_layout == FR_COL: The frame is fixed height if all of the 2557 * frames in the row are fixed height. */ 2558 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2559 if (!frame_fixed_height(frp)) 2560 return FALSE; 2561 return TRUE; 2562 } 2563 2564 #ifdef FEAT_VERTSPLIT 2565 /* 2566 * Return TRUE if width of frame "frp" should not be changed because of 2567 * the 'winfixwidth' option. 2568 */ 2569 static int 2570 frame_fixed_width(frp) 2571 frame_T *frp; 2572 { 2573 /* frame with one window: fixed width if 'winfixwidth' set. */ 2574 if (frp->fr_win != NULL) 2575 return frp->fr_win->w_p_wfw; 2576 2577 if (frp->fr_layout == FR_COL) 2578 { 2579 /* The frame is fixed width if one of the frames in the row is fixed 2580 * width. */ 2581 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2582 if (frame_fixed_width(frp)) 2583 return TRUE; 2584 return FALSE; 2585 } 2586 2587 /* frp->fr_layout == FR_ROW: The frame is fixed width if all of the 2588 * frames in the row are fixed width. */ 2589 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2590 if (!frame_fixed_width(frp)) 2591 return FALSE; 2592 return TRUE; 2593 } 2594 2595 /* 2596 * Add a status line to windows at the bottom of "frp". 2597 * Note: Does not check if there is room! 2598 */ 2599 static void 2600 frame_add_statusline(frp) 2601 frame_T *frp; 2602 { 2603 win_T *wp; 2604 2605 if (frp->fr_layout == FR_LEAF) 2606 { 2607 wp = frp->fr_win; 2608 if (wp->w_status_height == 0) 2609 { 2610 if (wp->w_height > 0) /* don't make it negative */ 2611 --wp->w_height; 2612 wp->w_status_height = STATUS_HEIGHT; 2613 } 2614 } 2615 else if (frp->fr_layout == FR_ROW) 2616 { 2617 /* Handle all the frames in the row. */ 2618 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2619 frame_add_statusline(frp); 2620 } 2621 else /* frp->fr_layout == FR_COL */ 2622 { 2623 /* Only need to handle the last frame in the column. */ 2624 for (frp = frp->fr_child; frp->fr_next != NULL; frp = frp->fr_next) 2625 ; 2626 frame_add_statusline(frp); 2627 } 2628 } 2629 2630 /* 2631 * Set width of a frame. Handles recursively going through contained frames. 2632 * May remove separator line for windows at the right side (for win_close()). 2633 */ 2634 static void 2635 frame_new_width(topfrp, width, leftfirst, wfw) 2636 frame_T *topfrp; 2637 int width; 2638 int leftfirst; /* resize leftmost contained frame first */ 2639 int wfw; /* obey 'winfixwidth' when there is a choice; 2640 may cause the width not to be set */ 2641 { 2642 frame_T *frp; 2643 int extra_cols; 2644 int w; 2645 win_T *wp; 2646 2647 if (topfrp->fr_layout == FR_LEAF) 2648 { 2649 /* Simple case: just one window. */ 2650 wp = topfrp->fr_win; 2651 /* Find out if there are any windows right of this one. */ 2652 for (frp = topfrp; frp->fr_parent != NULL; frp = frp->fr_parent) 2653 if (frp->fr_parent->fr_layout == FR_ROW && frp->fr_next != NULL) 2654 break; 2655 if (frp->fr_parent == NULL) 2656 wp->w_vsep_width = 0; 2657 win_new_width(wp, width - wp->w_vsep_width); 2658 } 2659 else if (topfrp->fr_layout == FR_COL) 2660 { 2661 do 2662 { 2663 /* All frames in this column get the same new width. */ 2664 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 2665 { 2666 frame_new_width(frp, width, leftfirst, wfw); 2667 if (frp->fr_width > width) 2668 { 2669 /* Could not fit the windows, make whole column wider. */ 2670 width = frp->fr_width; 2671 break; 2672 } 2673 } 2674 } while (frp != NULL); 2675 } 2676 else /* fr_layout == FR_ROW */ 2677 { 2678 /* Complicated case: Resize a row of frames. Resize the rightmost 2679 * frame first, frames left of it when needed. */ 2680 2681 frp = topfrp->fr_child; 2682 if (wfw) 2683 /* Advance past frames with one window with 'wfw' set. */ 2684 while (frame_fixed_width(frp)) 2685 { 2686 frp = frp->fr_next; 2687 if (frp == NULL) 2688 return; /* no frame without 'wfw', give up */ 2689 } 2690 if (!leftfirst) 2691 { 2692 /* Find the rightmost frame of this row */ 2693 while (frp->fr_next != NULL) 2694 frp = frp->fr_next; 2695 if (wfw) 2696 /* Advance back for frames with one window with 'wfw' set. */ 2697 while (frame_fixed_width(frp)) 2698 frp = frp->fr_prev; 2699 } 2700 2701 extra_cols = width - topfrp->fr_width; 2702 if (extra_cols < 0) 2703 { 2704 /* reduce frame width, rightmost frame first */ 2705 while (frp != NULL) 2706 { 2707 w = frame_minwidth(frp, NULL); 2708 if (frp->fr_width + extra_cols < w) 2709 { 2710 extra_cols += frp->fr_width - w; 2711 frame_new_width(frp, w, leftfirst, wfw); 2712 } 2713 else 2714 { 2715 frame_new_width(frp, frp->fr_width + extra_cols, 2716 leftfirst, wfw); 2717 break; 2718 } 2719 if (leftfirst) 2720 { 2721 do 2722 frp = frp->fr_next; 2723 while (wfw && frp != NULL && frame_fixed_width(frp)); 2724 } 2725 else 2726 { 2727 do 2728 frp = frp->fr_prev; 2729 while (wfw && frp != NULL && frame_fixed_width(frp)); 2730 } 2731 /* Increase "width" if we could not reduce enough frames. */ 2732 if (frp == NULL) 2733 width -= extra_cols; 2734 } 2735 } 2736 else if (extra_cols > 0) 2737 { 2738 /* increase width of rightmost frame */ 2739 frame_new_width(frp, frp->fr_width + extra_cols, leftfirst, wfw); 2740 } 2741 } 2742 topfrp->fr_width = width; 2743 } 2744 2745 /* 2746 * Add the vertical separator to windows at the right side of "frp". 2747 * Note: Does not check if there is room! 2748 */ 2749 static void 2750 frame_add_vsep(frp) 2751 frame_T *frp; 2752 { 2753 win_T *wp; 2754 2755 if (frp->fr_layout == FR_LEAF) 2756 { 2757 wp = frp->fr_win; 2758 if (wp->w_vsep_width == 0) 2759 { 2760 if (wp->w_width > 0) /* don't make it negative */ 2761 --wp->w_width; 2762 wp->w_vsep_width = 1; 2763 } 2764 } 2765 else if (frp->fr_layout == FR_COL) 2766 { 2767 /* Handle all the frames in the column. */ 2768 for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) 2769 frame_add_vsep(frp); 2770 } 2771 else /* frp->fr_layout == FR_ROW */ 2772 { 2773 /* Only need to handle the last frame in the row. */ 2774 frp = frp->fr_child; 2775 while (frp->fr_next != NULL) 2776 frp = frp->fr_next; 2777 frame_add_vsep(frp); 2778 } 2779 } 2780 2781 /* 2782 * Set frame width from the window it contains. 2783 */ 2784 static void 2785 frame_fix_width(wp) 2786 win_T *wp; 2787 { 2788 wp->w_frame->fr_width = wp->w_width + wp->w_vsep_width; 2789 } 2790 #endif 2791 2792 /* 2793 * Set frame height from the window it contains. 2794 */ 2795 static void 2796 frame_fix_height(wp) 2797 win_T *wp; 2798 { 2799 wp->w_frame->fr_height = wp->w_height + wp->w_status_height; 2800 } 2801 2802 /* 2803 * Compute the minimal height for frame "topfrp". 2804 * Uses the 'winminheight' option. 2805 * When "next_curwin" isn't NULL, use p_wh for this window. 2806 * When "next_curwin" is NOWIN, don't use at least one line for the current 2807 * window. 2808 */ 2809 static int 2810 frame_minheight(topfrp, next_curwin) 2811 frame_T *topfrp; 2812 win_T *next_curwin; 2813 { 2814 frame_T *frp; 2815 int m; 2816 #ifdef FEAT_VERTSPLIT 2817 int n; 2818 #endif 2819 2820 if (topfrp->fr_win != NULL) 2821 { 2822 if (topfrp->fr_win == next_curwin) 2823 m = p_wh + topfrp->fr_win->w_status_height; 2824 else 2825 { 2826 /* window: minimal height of the window plus status line */ 2827 m = p_wmh + topfrp->fr_win->w_status_height; 2828 /* Current window is minimal one line high */ 2829 if (p_wmh == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 2830 ++m; 2831 } 2832 } 2833 #ifdef FEAT_VERTSPLIT 2834 else if (topfrp->fr_layout == FR_ROW) 2835 { 2836 /* get the minimal height from each frame in this row */ 2837 m = 0; 2838 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 2839 { 2840 n = frame_minheight(frp, next_curwin); 2841 if (n > m) 2842 m = n; 2843 } 2844 } 2845 #endif 2846 else 2847 { 2848 /* Add up the minimal heights for all frames in this column. */ 2849 m = 0; 2850 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 2851 m += frame_minheight(frp, next_curwin); 2852 } 2853 2854 return m; 2855 } 2856 2857 #ifdef FEAT_VERTSPLIT 2858 /* 2859 * Compute the minimal width for frame "topfrp". 2860 * When "next_curwin" isn't NULL, use p_wiw for this window. 2861 * When "next_curwin" is NOWIN, don't use at least one column for the current 2862 * window. 2863 */ 2864 static int 2865 frame_minwidth(topfrp, next_curwin) 2866 frame_T *topfrp; 2867 win_T *next_curwin; /* use p_wh and p_wiw for next_curwin */ 2868 { 2869 frame_T *frp; 2870 int m, n; 2871 2872 if (topfrp->fr_win != NULL) 2873 { 2874 if (topfrp->fr_win == next_curwin) 2875 m = p_wiw + topfrp->fr_win->w_vsep_width; 2876 else 2877 { 2878 /* window: minimal width of the window plus separator column */ 2879 m = p_wmw + topfrp->fr_win->w_vsep_width; 2880 /* Current window is minimal one column wide */ 2881 if (p_wmw == 0 && topfrp->fr_win == curwin && next_curwin == NULL) 2882 ++m; 2883 } 2884 } 2885 else if (topfrp->fr_layout == FR_COL) 2886 { 2887 /* get the minimal width from each frame in this column */ 2888 m = 0; 2889 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 2890 { 2891 n = frame_minwidth(frp, next_curwin); 2892 if (n > m) 2893 m = n; 2894 } 2895 } 2896 else 2897 { 2898 /* Add up the minimal widths for all frames in this row. */ 2899 m = 0; 2900 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 2901 m += frame_minwidth(frp, next_curwin); 2902 } 2903 2904 return m; 2905 } 2906 #endif 2907 2908 2909 /* 2910 * Try to close all windows except current one. 2911 * Buffers in the other windows become hidden if 'hidden' is set, or '!' is 2912 * used and the buffer was modified. 2913 * 2914 * Used by ":bdel" and ":only". 2915 */ 2916 void 2917 close_others(message, forceit) 2918 int message; 2919 int forceit; /* always hide all other windows */ 2920 { 2921 win_T *wp; 2922 win_T *nextwp; 2923 int r; 2924 2925 if (lastwin == firstwin) 2926 { 2927 if (message 2928 #ifdef FEAT_AUTOCMD 2929 && !autocmd_busy 2930 #endif 2931 ) 2932 MSG(_("Already only one window")); 2933 return; 2934 } 2935 2936 /* Be very careful here: autocommands may change the window layout. */ 2937 for (wp = firstwin; win_valid(wp); wp = nextwp) 2938 { 2939 nextwp = wp->w_next; 2940 if (wp != curwin) /* don't close current window */ 2941 { 2942 2943 /* Check if it's allowed to abandon this window */ 2944 r = can_abandon(wp->w_buffer, forceit); 2945 #ifdef FEAT_AUTOCMD 2946 if (!win_valid(wp)) /* autocommands messed wp up */ 2947 { 2948 nextwp = firstwin; 2949 continue; 2950 } 2951 #endif 2952 if (!r) 2953 { 2954 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 2955 if (message && (p_confirm || cmdmod.confirm) && p_write) 2956 { 2957 dialog_changed(wp->w_buffer, FALSE); 2958 # ifdef FEAT_AUTOCMD 2959 if (!win_valid(wp)) /* autocommands messed wp up */ 2960 { 2961 nextwp = firstwin; 2962 continue; 2963 } 2964 # endif 2965 } 2966 if (bufIsChanged(wp->w_buffer)) 2967 #endif 2968 continue; 2969 } 2970 win_close(wp, !P_HID(wp->w_buffer) && !bufIsChanged(wp->w_buffer)); 2971 } 2972 } 2973 2974 if (message && lastwin != firstwin) 2975 EMSG(_("E445: Other window contains changes")); 2976 } 2977 2978 #endif /* FEAT_WINDOWS */ 2979 2980 /* 2981 * Init the current window "curwin". 2982 * Called when a new file is being edited. 2983 */ 2984 void 2985 curwin_init() 2986 { 2987 redraw_win_later(curwin, NOT_VALID); 2988 curwin->w_lines_valid = 0; 2989 curwin->w_cursor.lnum = 1; 2990 curwin->w_curswant = curwin->w_cursor.col = 0; 2991 #ifdef FEAT_VIRTUALEDIT 2992 curwin->w_cursor.coladd = 0; 2993 #endif 2994 curwin->w_pcmark.lnum = 1; /* pcmark not cleared but set to line 1 */ 2995 curwin->w_pcmark.col = 0; 2996 curwin->w_prev_pcmark.lnum = 0; 2997 curwin->w_prev_pcmark.col = 0; 2998 curwin->w_topline = 1; 2999 #ifdef FEAT_DIFF 3000 curwin->w_topfill = 0; 3001 #endif 3002 curwin->w_botline = 2; 3003 #ifdef FEAT_FKMAP 3004 if (curwin->w_p_rl) 3005 curwin->w_farsi = W_CONV + W_R_L; 3006 else 3007 curwin->w_farsi = W_CONV; 3008 #endif 3009 } 3010 3011 /* 3012 * Allocate the first window and put an empty buffer in it. 3013 * Called from main(). 3014 * Return FAIL when something goes wrong (out of memory). 3015 */ 3016 int 3017 win_alloc_first() 3018 { 3019 if (win_alloc_firstwin(NULL) == FAIL) 3020 return FAIL; 3021 3022 #ifdef FEAT_WINDOWS 3023 first_tabpage = alloc_tabpage(); 3024 if (first_tabpage == NULL) 3025 return FAIL; 3026 first_tabpage->tp_topframe = topframe; 3027 curtab = first_tabpage; 3028 #endif 3029 return OK; 3030 } 3031 3032 /* 3033 * Allocate the first window or the first window in a new tab page. 3034 * When "oldwin" is NULL create an empty buffer for it. 3035 * When "oldwin" is not NULL copy info from it to the new window (only with 3036 * FEAT_WINDOWS). 3037 * Return FAIL when something goes wrong (out of memory). 3038 */ 3039 static int 3040 win_alloc_firstwin(oldwin) 3041 win_T *oldwin; 3042 { 3043 curwin = win_alloc(NULL); 3044 if (oldwin == NULL) 3045 { 3046 /* Very first window, need to create an empty buffer for it and 3047 * initialize from scratch. */ 3048 curbuf = buflist_new(NULL, NULL, 1L, BLN_LISTED); 3049 if (curwin == NULL || curbuf == NULL) 3050 return FAIL; 3051 curwin->w_buffer = curbuf; 3052 curbuf->b_nwindows = 1; /* there is one window */ 3053 #ifdef FEAT_WINDOWS 3054 curwin->w_alist = &global_alist; 3055 #endif 3056 curwin_init(); /* init current window */ 3057 } 3058 #ifdef FEAT_WINDOWS 3059 else 3060 { 3061 /* First window in new tab page, initialize it from "oldwin". */ 3062 win_init(curwin, oldwin); 3063 3064 # ifdef FEAT_SCROLLBIND 3065 /* We don't want scroll-binding in the first window. */ 3066 curwin->w_p_scb = FALSE; 3067 # endif 3068 } 3069 #endif 3070 3071 topframe = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); 3072 if (topframe == NULL) 3073 return FAIL; 3074 topframe->fr_layout = FR_LEAF; 3075 #ifdef FEAT_VERTSPLIT 3076 topframe->fr_width = Columns; 3077 #endif 3078 topframe->fr_height = Rows - p_ch; 3079 #ifdef FEAT_WINDOWS 3080 p_ch_used = p_ch; 3081 #endif 3082 topframe->fr_win = curwin; 3083 curwin->w_frame = topframe; 3084 3085 return OK; 3086 } 3087 3088 /* 3089 * Initialize the window and frame size to the maximum. 3090 */ 3091 void 3092 win_init_size() 3093 { 3094 firstwin->w_height = ROWS_AVAIL; 3095 topframe->fr_height = ROWS_AVAIL; 3096 #ifdef FEAT_VERTSPLIT 3097 firstwin->w_width = Columns; 3098 topframe->fr_width = Columns; 3099 #endif 3100 } 3101 3102 #if defined(FEAT_WINDOWS) || defined(PROTO) 3103 3104 /* 3105 * Allocate a new tabpage_T and init the values. 3106 * Returns NULL when out of memory. 3107 */ 3108 static tabpage_T * 3109 alloc_tabpage() 3110 { 3111 tabpage_T *tp; 3112 3113 tp = (tabpage_T *)alloc_clear((unsigned)sizeof(tabpage_T)); 3114 if (tp != NULL) 3115 { 3116 # ifdef FEAT_GUI 3117 int i; 3118 3119 for (i = 0; i < 3; i++) 3120 tp->tp_prev_which_scrollbars[i] = -1; 3121 # endif 3122 # ifdef FEAT_DIFF 3123 tp->tp_diff_invalid = TRUE; 3124 # endif 3125 } 3126 return tp; 3127 } 3128 3129 static void 3130 free_tabpage(tp) 3131 tabpage_T *tp; 3132 { 3133 # ifdef FEAT_DIFF 3134 diff_clear(tp); 3135 # endif 3136 clear_snapshot(tp); 3137 vim_free(tp); 3138 } 3139 3140 /* 3141 * Create a new Tab page with one window. 3142 * It will edit the current buffer, like after ":split". 3143 * When "after" is 0 put it just after the current Tab page. 3144 * Otherwise put it just before tab page "after". 3145 * Return FAIL or OK. 3146 */ 3147 int 3148 win_new_tabpage(after) 3149 int after; 3150 { 3151 tabpage_T *tp = curtab; 3152 tabpage_T *newtp; 3153 int n; 3154 3155 newtp = alloc_tabpage(); 3156 if (newtp == NULL) 3157 return FAIL; 3158 3159 /* Remember the current windows in this Tab page. */ 3160 if (leave_tabpage(curbuf) == FAIL) 3161 { 3162 vim_free(newtp); 3163 return FAIL; 3164 } 3165 curtab = newtp; 3166 3167 /* Create a new empty window. */ 3168 if (win_alloc_firstwin(tp->tp_curwin) == OK) 3169 { 3170 /* Make the new Tab page the new topframe. */ 3171 if (after == 1) 3172 { 3173 /* New tab page becomes the first one. */ 3174 newtp->tp_next = first_tabpage; 3175 first_tabpage = newtp; 3176 } 3177 else 3178 { 3179 if (after > 0) 3180 { 3181 /* Put new tab page before tab page "after". */ 3182 n = 2; 3183 for (tp = first_tabpage; tp->tp_next != NULL 3184 && n < after; tp = tp->tp_next) 3185 ++n; 3186 } 3187 newtp->tp_next = tp->tp_next; 3188 tp->tp_next = newtp; 3189 } 3190 win_init_size(); 3191 firstwin->w_winrow = tabline_height(); 3192 3193 newtp->tp_topframe = topframe; 3194 last_status(FALSE); 3195 redraw_all_later(CLEAR); 3196 #ifdef FEAT_AUTOCMD 3197 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3198 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 3199 #endif 3200 return OK; 3201 } 3202 3203 /* Failed, get back the previous Tab page */ 3204 enter_tabpage(curtab, curbuf); 3205 return FAIL; 3206 } 3207 3208 /* 3209 * Open a new tab page if ":tab cmd" was used. It will edit the same buffer, 3210 * like with ":split". 3211 * Returns OK if a new tab page was created, FAIL otherwise. 3212 */ 3213 int 3214 may_open_tabpage() 3215 { 3216 int n = cmdmod.tab; 3217 3218 if (cmdmod.tab != 0) 3219 { 3220 cmdmod.tab = 0; /* reset it to avoid doing it twice */ 3221 return win_new_tabpage(n); 3222 } 3223 return FAIL; 3224 } 3225 3226 /* 3227 * Create up to "maxcount" tabpages with empty windows. 3228 * Returns the number of resulting tab pages. 3229 */ 3230 int 3231 make_tabpages(maxcount) 3232 int maxcount; 3233 { 3234 int count = maxcount; 3235 int todo; 3236 3237 /* Limit to 'tabpagemax' tabs. */ 3238 if (count > p_tpm) 3239 count = p_tpm; 3240 3241 #ifdef FEAT_AUTOCMD 3242 /* 3243 * Don't execute autocommands while creating the tab pages. Must do that 3244 * when putting the buffers in the windows. 3245 */ 3246 ++autocmd_block; 3247 #endif 3248 3249 for (todo = count - 1; todo > 0; --todo) 3250 if (win_new_tabpage(0) == FAIL) 3251 break; 3252 3253 #ifdef FEAT_AUTOCMD 3254 --autocmd_block; 3255 #endif 3256 3257 /* return actual number of tab pages */ 3258 return (count - todo); 3259 } 3260 3261 /* 3262 * Return TRUE when "tpc" points to a valid tab page. 3263 */ 3264 int 3265 valid_tabpage(tpc) 3266 tabpage_T *tpc; 3267 { 3268 tabpage_T *tp; 3269 3270 for (tp = first_tabpage; tp != NULL; tp = tp->tp_next) 3271 if (tp == tpc) 3272 return TRUE; 3273 return FALSE; 3274 } 3275 3276 /* 3277 * Find tab page "n" (first one is 1). Returns NULL when not found. 3278 */ 3279 tabpage_T * 3280 find_tabpage(n) 3281 int n; 3282 { 3283 tabpage_T *tp; 3284 int i = 1; 3285 3286 for (tp = first_tabpage; tp != NULL && i != n; tp = tp->tp_next) 3287 ++i; 3288 return tp; 3289 } 3290 3291 /* 3292 * Get index of tab page "tp". First one has index 1. 3293 * When not found returns number of tab pages plus one. 3294 */ 3295 int 3296 tabpage_index(ftp) 3297 tabpage_T *ftp; 3298 { 3299 int i = 1; 3300 tabpage_T *tp; 3301 3302 for (tp = first_tabpage; tp != NULL && tp != ftp; tp = tp->tp_next) 3303 ++i; 3304 return i; 3305 } 3306 3307 /* 3308 * Prepare for leaving the current tab page. 3309 * When autocomands change "curtab" we don't leave the tab page and return 3310 * FAIL. 3311 * Careful: When OK is returned need to get a new tab page very very soon! 3312 */ 3313 /*ARGSUSED*/ 3314 static int 3315 leave_tabpage(new_curbuf) 3316 buf_T *new_curbuf; /* what is going to be the new curbuf, 3317 NULL if unknown */ 3318 { 3319 tabpage_T *tp = curtab; 3320 3321 #ifdef FEAT_AUTOCMD 3322 if (new_curbuf != curbuf) 3323 { 3324 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 3325 if (curtab != tp) 3326 return FAIL; 3327 } 3328 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 3329 if (curtab != tp) 3330 return FAIL; 3331 apply_autocmds(EVENT_TABLEAVE, NULL, NULL, FALSE, curbuf); 3332 if (curtab != tp) 3333 return FAIL; 3334 #endif 3335 #if defined(FEAT_GUI) 3336 /* Remove the scrollbars. They may be added back later. */ 3337 if (gui.in_use) 3338 gui_remove_scrollbars(); 3339 #endif 3340 tp->tp_curwin = curwin; 3341 tp->tp_prevwin = prevwin; 3342 tp->tp_firstwin = firstwin; 3343 tp->tp_lastwin = lastwin; 3344 tp->tp_old_Rows = Rows; 3345 tp->tp_old_Columns = Columns; 3346 firstwin = NULL; 3347 lastwin = NULL; 3348 return OK; 3349 } 3350 3351 /* 3352 * Start using tab page "tp". 3353 * Only to be used after leave_tabpage() or freeing the current tab page. 3354 */ 3355 /*ARGSUSED*/ 3356 static void 3357 enter_tabpage(tp, old_curbuf) 3358 tabpage_T *tp; 3359 buf_T *old_curbuf; 3360 { 3361 int old_off = tp->tp_firstwin->w_winrow; 3362 3363 curtab = tp; 3364 firstwin = tp->tp_firstwin; 3365 lastwin = tp->tp_lastwin; 3366 topframe = tp->tp_topframe; 3367 #ifdef FEAT_AUTOCMD 3368 apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); 3369 #endif 3370 3371 win_enter_ext(tp->tp_curwin, FALSE, TRUE); 3372 prevwin = tp->tp_prevwin; 3373 3374 #ifdef FEAT_AUTOCMD 3375 if (old_curbuf != curbuf) 3376 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 3377 #endif 3378 3379 last_status(FALSE); /* status line may appear or disappear */ 3380 (void)win_comp_pos(); /* recompute w_winrow for all windows */ 3381 must_redraw = CLEAR; /* need to redraw everything */ 3382 #ifdef FEAT_DIFF 3383 diff_need_scrollbind = TRUE; 3384 #endif 3385 3386 /* The tabpage line may have appeared or disappeared, may need to resize 3387 * the frames for that. When the Vim window was resized need to update 3388 * frame sizes too. */ 3389 if (curtab->tp_old_Rows != Rows || (old_off != firstwin->w_winrow 3390 #ifdef FEAT_GUI_TABLINE 3391 && !gui_use_tabline() 3392 #endif 3393 )) 3394 shell_new_rows(); 3395 #ifdef FEAT_VERTSPLIT 3396 if (curtab->tp_old_Columns != Columns && starting == 0) 3397 shell_new_columns(); /* update window widths */ 3398 #endif 3399 3400 #if defined(FEAT_GUI) 3401 /* When 'guioptions' includes 'L' or 'R' may have to remove or add 3402 * scrollbars. Have to update them anyway. */ 3403 if (gui.in_use && starting == 0) 3404 { 3405 gui_init_which_components(NULL); 3406 gui_update_scrollbars(TRUE); 3407 } 3408 need_mouse_correct = TRUE; 3409 #endif 3410 3411 redraw_all_later(CLEAR); 3412 } 3413 3414 /* 3415 * Go to tab page "n". For ":tab N" and "Ngt". 3416 * When "n" is 9999 go to the last tab page. 3417 */ 3418 void 3419 goto_tabpage(n) 3420 int n; 3421 { 3422 tabpage_T *tp; 3423 tabpage_T *ttp; 3424 int i; 3425 3426 /* If there is only one it can't work. */ 3427 if (first_tabpage->tp_next == NULL) 3428 { 3429 if (n > 1) 3430 beep_flush(); 3431 return; 3432 } 3433 3434 if (n == 0) 3435 { 3436 /* No count, go to next tab page, wrap around end. */ 3437 if (curtab->tp_next == NULL) 3438 tp = first_tabpage; 3439 else 3440 tp = curtab->tp_next; 3441 } 3442 else if (n < 0) 3443 { 3444 /* "gT": go to previous tab page, wrap around end. "N gT" repeats 3445 * this N times. */ 3446 ttp = curtab; 3447 for (i = n; i < 0; ++i) 3448 { 3449 for (tp = first_tabpage; tp->tp_next != ttp && tp->tp_next != NULL; 3450 tp = tp->tp_next) 3451 ; 3452 ttp = tp; 3453 } 3454 } 3455 else if (n == 9999) 3456 { 3457 /* Go to last tab page. */ 3458 for (tp = first_tabpage; tp->tp_next != NULL; tp = tp->tp_next) 3459 ; 3460 } 3461 else 3462 { 3463 /* Go to tab page "n". */ 3464 tp = find_tabpage(n); 3465 if (tp == NULL) 3466 { 3467 beep_flush(); 3468 return; 3469 } 3470 } 3471 3472 goto_tabpage_tp(tp); 3473 3474 #ifdef FEAT_GUI_TABLINE 3475 if (gui_use_tabline()) 3476 gui_mch_set_curtab(tabpage_index(curtab)); 3477 #endif 3478 } 3479 3480 /* 3481 * Go to tabpage "tp". 3482 * Note: doesn't update the GUI tab. 3483 */ 3484 void 3485 goto_tabpage_tp(tp) 3486 tabpage_T *tp; 3487 { 3488 if (tp != curtab && leave_tabpage(tp->tp_curwin->w_buffer) == OK) 3489 { 3490 if (valid_tabpage(tp)) 3491 enter_tabpage(tp, curbuf); 3492 else 3493 enter_tabpage(curtab, curbuf); 3494 } 3495 } 3496 3497 /* 3498 * Move the current tab page to before tab page "nr". 3499 */ 3500 void 3501 tabpage_move(nr) 3502 int nr; 3503 { 3504 int n = nr; 3505 tabpage_T *tp; 3506 3507 if (first_tabpage->tp_next == NULL) 3508 return; 3509 3510 /* Remove the current tab page from the list of tab pages. */ 3511 if (curtab == first_tabpage) 3512 first_tabpage = curtab->tp_next; 3513 else 3514 { 3515 for (tp = first_tabpage; tp != NULL; tp = tp->tp_next) 3516 if (tp->tp_next == curtab) 3517 break; 3518 if (tp == NULL) /* "cannot happen" */ 3519 return; 3520 tp->tp_next = curtab->tp_next; 3521 } 3522 3523 /* Re-insert it at the specified position. */ 3524 if (n == 0) 3525 { 3526 curtab->tp_next = first_tabpage; 3527 first_tabpage = curtab; 3528 } 3529 else 3530 { 3531 for (tp = first_tabpage; tp->tp_next != NULL && n > 1; tp = tp->tp_next) 3532 --n; 3533 curtab->tp_next = tp->tp_next; 3534 tp->tp_next = curtab; 3535 } 3536 3537 /* Need to redraw the tabline. Tab page contents doesn't change. */ 3538 redraw_tabline = TRUE; 3539 } 3540 3541 3542 /* 3543 * Go to another window. 3544 * When jumping to another buffer, stop Visual mode. Do this before 3545 * changing windows so we can yank the selection into the '*' register. 3546 * When jumping to another window on the same buffer, adjust its cursor 3547 * position to keep the same Visual area. 3548 */ 3549 void 3550 win_goto(wp) 3551 win_T *wp; 3552 { 3553 if (text_locked()) 3554 { 3555 beep_flush(); 3556 text_locked_msg(); 3557 return; 3558 } 3559 3560 #ifdef FEAT_VISUAL 3561 if (wp->w_buffer != curbuf) 3562 reset_VIsual_and_resel(); 3563 else if (VIsual_active) 3564 wp->w_cursor = curwin->w_cursor; 3565 #endif 3566 3567 #ifdef FEAT_GUI 3568 need_mouse_correct = TRUE; 3569 #endif 3570 win_enter(wp, TRUE); 3571 } 3572 3573 #if defined(FEAT_PERL) || defined(PROTO) 3574 /* 3575 * Find window number "winnr" (counting top to bottom). 3576 */ 3577 win_T * 3578 win_find_nr(winnr) 3579 int winnr; 3580 { 3581 win_T *wp; 3582 3583 # ifdef FEAT_WINDOWS 3584 for (wp = firstwin; wp != NULL; wp = wp->w_next) 3585 if (--winnr == 0) 3586 break; 3587 return wp; 3588 # else 3589 return curwin; 3590 # endif 3591 } 3592 #endif 3593 3594 #ifdef FEAT_VERTSPLIT 3595 /* 3596 * Move to window above or below "count" times. 3597 */ 3598 static void 3599 win_goto_ver(up, count) 3600 int up; /* TRUE to go to win above */ 3601 long count; 3602 { 3603 frame_T *fr; 3604 frame_T *nfr; 3605 frame_T *foundfr; 3606 3607 foundfr = curwin->w_frame; 3608 while (count--) 3609 { 3610 /* 3611 * First go upwards in the tree of frames until we find a upwards or 3612 * downwards neighbor. 3613 */ 3614 fr = foundfr; 3615 for (;;) 3616 { 3617 if (fr == topframe) 3618 goto end; 3619 if (up) 3620 nfr = fr->fr_prev; 3621 else 3622 nfr = fr->fr_next; 3623 if (fr->fr_parent->fr_layout == FR_COL && nfr != NULL) 3624 break; 3625 fr = fr->fr_parent; 3626 } 3627 3628 /* 3629 * Now go downwards to find the bottom or top frame in it. 3630 */ 3631 for (;;) 3632 { 3633 if (nfr->fr_layout == FR_LEAF) 3634 { 3635 foundfr = nfr; 3636 break; 3637 } 3638 fr = nfr->fr_child; 3639 if (nfr->fr_layout == FR_ROW) 3640 { 3641 /* Find the frame at the cursor row. */ 3642 while (fr->fr_next != NULL 3643 && frame2win(fr)->w_wincol + fr->fr_width 3644 <= curwin->w_wincol + curwin->w_wcol) 3645 fr = fr->fr_next; 3646 } 3647 if (nfr->fr_layout == FR_COL && up) 3648 while (fr->fr_next != NULL) 3649 fr = fr->fr_next; 3650 nfr = fr; 3651 } 3652 } 3653 end: 3654 if (foundfr != NULL) 3655 win_goto(foundfr->fr_win); 3656 } 3657 3658 /* 3659 * Move to left or right window. 3660 */ 3661 static void 3662 win_goto_hor(left, count) 3663 int left; /* TRUE to go to left win */ 3664 long count; 3665 { 3666 frame_T *fr; 3667 frame_T *nfr; 3668 frame_T *foundfr; 3669 3670 foundfr = curwin->w_frame; 3671 while (count--) 3672 { 3673 /* 3674 * First go upwards in the tree of frames until we find a left or 3675 * right neighbor. 3676 */ 3677 fr = foundfr; 3678 for (;;) 3679 { 3680 if (fr == topframe) 3681 goto end; 3682 if (left) 3683 nfr = fr->fr_prev; 3684 else 3685 nfr = fr->fr_next; 3686 if (fr->fr_parent->fr_layout == FR_ROW && nfr != NULL) 3687 break; 3688 fr = fr->fr_parent; 3689 } 3690 3691 /* 3692 * Now go downwards to find the leftmost or rightmost frame in it. 3693 */ 3694 for (;;) 3695 { 3696 if (nfr->fr_layout == FR_LEAF) 3697 { 3698 foundfr = nfr; 3699 break; 3700 } 3701 fr = nfr->fr_child; 3702 if (nfr->fr_layout == FR_COL) 3703 { 3704 /* Find the frame at the cursor row. */ 3705 while (fr->fr_next != NULL 3706 && frame2win(fr)->w_winrow + fr->fr_height 3707 <= curwin->w_winrow + curwin->w_wrow) 3708 fr = fr->fr_next; 3709 } 3710 if (nfr->fr_layout == FR_ROW && left) 3711 while (fr->fr_next != NULL) 3712 fr = fr->fr_next; 3713 nfr = fr; 3714 } 3715 } 3716 end: 3717 if (foundfr != NULL) 3718 win_goto(foundfr->fr_win); 3719 } 3720 #endif 3721 3722 /* 3723 * Make window "wp" the current window. 3724 */ 3725 void 3726 win_enter(wp, undo_sync) 3727 win_T *wp; 3728 int undo_sync; 3729 { 3730 win_enter_ext(wp, undo_sync, FALSE); 3731 } 3732 3733 /* 3734 * Make window wp the current window. 3735 * Can be called with "curwin_invalid" TRUE, which means that curwin has just 3736 * been closed and isn't valid. 3737 */ 3738 static void 3739 win_enter_ext(wp, undo_sync, curwin_invalid) 3740 win_T *wp; 3741 int undo_sync; 3742 int curwin_invalid; 3743 { 3744 #ifdef FEAT_AUTOCMD 3745 int other_buffer = FALSE; 3746 #endif 3747 3748 if (wp == curwin && !curwin_invalid) /* nothing to do */ 3749 return; 3750 3751 #ifdef FEAT_AUTOCMD 3752 if (!curwin_invalid) 3753 { 3754 /* 3755 * Be careful: If autocommands delete the window, return now. 3756 */ 3757 if (wp->w_buffer != curbuf) 3758 { 3759 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 3760 other_buffer = TRUE; 3761 if (!win_valid(wp)) 3762 return; 3763 } 3764 apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); 3765 if (!win_valid(wp)) 3766 return; 3767 # ifdef FEAT_EVAL 3768 /* autocmds may abort script processing */ 3769 if (aborting()) 3770 return; 3771 # endif 3772 } 3773 #endif 3774 3775 /* sync undo before leaving the current buffer */ 3776 if (undo_sync && curbuf != wp->w_buffer) 3777 u_sync(); 3778 /* may have to copy the buffer options when 'cpo' contains 'S' */ 3779 if (wp->w_buffer != curbuf) 3780 buf_copy_options(wp->w_buffer, BCO_ENTER | BCO_NOHELP); 3781 if (!curwin_invalid) 3782 { 3783 prevwin = curwin; /* remember for CTRL-W p */ 3784 curwin->w_redr_status = TRUE; 3785 } 3786 curwin = wp; 3787 curbuf = wp->w_buffer; 3788 check_cursor(); 3789 #ifdef FEAT_VIRTUALEDIT 3790 if (!virtual_active()) 3791 curwin->w_cursor.coladd = 0; 3792 #endif 3793 changed_line_abv_curs(); /* assume cursor position needs updating */ 3794 3795 if (curwin->w_localdir != NULL) 3796 { 3797 /* Window has a local directory: Save current directory as global 3798 * directory (unless that was done already) and change to the local 3799 * directory. */ 3800 if (globaldir == NULL) 3801 { 3802 char_u cwd[MAXPATHL]; 3803 3804 if (mch_dirname(cwd, MAXPATHL) == OK) 3805 globaldir = vim_strsave(cwd); 3806 } 3807 mch_chdir((char *)curwin->w_localdir); 3808 shorten_fnames(TRUE); 3809 } 3810 else if (globaldir != NULL) 3811 { 3812 /* Window doesn't have a local directory and we are not in the global 3813 * directory: Change to the global directory. */ 3814 mch_chdir((char *)globaldir); 3815 vim_free(globaldir); 3816 globaldir = NULL; 3817 shorten_fnames(TRUE); 3818 } 3819 3820 #ifdef FEAT_AUTOCMD 3821 apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); 3822 if (other_buffer) 3823 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 3824 #endif 3825 3826 #ifdef FEAT_TITLE 3827 maketitle(); 3828 #endif 3829 curwin->w_redr_status = TRUE; 3830 redraw_tabline = TRUE; 3831 if (restart_edit) 3832 redraw_later(VALID); /* causes status line redraw */ 3833 3834 /* set window height to desired minimal value */ 3835 if (curwin->w_height < p_wh && !curwin->w_p_wfh) 3836 win_setheight((int)p_wh); 3837 else if (curwin->w_height == 0) 3838 win_setheight(1); 3839 3840 #ifdef FEAT_VERTSPLIT 3841 /* set window width to desired minimal value */ 3842 if (curwin->w_width < p_wiw && !curwin->w_p_wfw) 3843 win_setwidth((int)p_wiw); 3844 #endif 3845 3846 #ifdef FEAT_MOUSE 3847 setmouse(); /* in case jumped to/from help buffer */ 3848 #endif 3849 3850 #if defined(FEAT_NETBEANS_INTG) || defined(FEAT_SUN_WORKSHOP) 3851 /* Change directories when the acd option is set on and after 3852 * switching windows. */ 3853 if (p_acd && curbuf->b_ffname != NULL 3854 && vim_chdirfile(curbuf->b_ffname) == OK) 3855 shorten_fnames(TRUE); 3856 #endif 3857 } 3858 3859 #endif /* FEAT_WINDOWS */ 3860 3861 #if defined(FEAT_WINDOWS) || defined(FEAT_SIGNS) || defined(PROTO) 3862 /* 3863 * Jump to the first open window that contains buffer buf if one exists 3864 * TODO: Alternatively jump to last open window? Dependent from 'splitbelow'? 3865 * Returns pointer to window if it exists, otherwise NULL. 3866 */ 3867 win_T * 3868 buf_jump_open_win(buf) 3869 buf_T *buf; 3870 { 3871 # ifdef FEAT_WINDOWS 3872 win_T *wp; 3873 3874 for (wp = firstwin; wp; wp = wp->w_next) 3875 if (wp->w_buffer == buf) 3876 break; 3877 if (wp != NULL) 3878 win_enter(wp, FALSE); 3879 return wp; 3880 # else 3881 if (curwin->w_buffer == buf) 3882 return curwin; 3883 return NULL; 3884 # endif 3885 } 3886 #endif 3887 3888 /* 3889 * allocate a window structure and link it in the window list 3890 */ 3891 /*ARGSUSED*/ 3892 static win_T * 3893 win_alloc(after) 3894 win_T *after; 3895 { 3896 win_T *newwin; 3897 3898 /* 3899 * allocate window structure and linesizes arrays 3900 */ 3901 newwin = (win_T *)alloc_clear((unsigned)sizeof(win_T)); 3902 if (newwin != NULL && win_alloc_lines(newwin) == FAIL) 3903 { 3904 vim_free(newwin); 3905 newwin = NULL; 3906 } 3907 3908 if (newwin != NULL) 3909 { 3910 /* 3911 * link the window in the window list 3912 */ 3913 #ifdef FEAT_WINDOWS 3914 win_append(after, newwin); 3915 #endif 3916 #ifdef FEAT_VERTSPLIT 3917 newwin->w_wincol = 0; 3918 newwin->w_width = Columns; 3919 #endif 3920 3921 /* position the display and the cursor at the top of the file. */ 3922 newwin->w_topline = 1; 3923 #ifdef FEAT_DIFF 3924 newwin->w_topfill = 0; 3925 #endif 3926 newwin->w_botline = 2; 3927 newwin->w_cursor.lnum = 1; 3928 #ifdef FEAT_SCROLLBIND 3929 newwin->w_scbind_pos = 1; 3930 #endif 3931 3932 /* We won't calculate w_fraction until resizing the window */ 3933 newwin->w_fraction = 0; 3934 newwin->w_prev_fraction_row = -1; 3935 3936 #ifdef FEAT_GUI 3937 if (gui.in_use) 3938 { 3939 out_flush(); 3940 gui_create_scrollbar(&newwin->w_scrollbars[SBAR_LEFT], 3941 SBAR_LEFT, newwin); 3942 gui_create_scrollbar(&newwin->w_scrollbars[SBAR_RIGHT], 3943 SBAR_RIGHT, newwin); 3944 } 3945 #endif 3946 #ifdef FEAT_EVAL 3947 /* init w: variables */ 3948 init_var_dict(&newwin->w_vars, &newwin->w_winvar); 3949 #endif 3950 #ifdef FEAT_FOLDING 3951 foldInitWin(newwin); 3952 #endif 3953 } 3954 return newwin; 3955 } 3956 3957 #if defined(FEAT_WINDOWS) || defined(PROTO) 3958 3959 /* 3960 * remove window 'wp' from the window list and free the structure 3961 */ 3962 static void 3963 win_free(wp, tp) 3964 win_T *wp; 3965 tabpage_T *tp; /* tab page "win" is in, NULL for current */ 3966 { 3967 int i; 3968 3969 #ifdef FEAT_MZSCHEME 3970 mzscheme_window_free(wp); 3971 #endif 3972 3973 #ifdef FEAT_PERL 3974 perl_win_free(wp); 3975 #endif 3976 3977 #ifdef FEAT_PYTHON 3978 python_window_free(wp); 3979 #endif 3980 3981 #ifdef FEAT_TCL 3982 tcl_window_free(wp); 3983 #endif 3984 3985 #ifdef FEAT_RUBY 3986 ruby_window_free(wp); 3987 #endif 3988 3989 clear_winopt(&wp->w_onebuf_opt); 3990 clear_winopt(&wp->w_allbuf_opt); 3991 3992 #ifdef FEAT_EVAL 3993 vars_clear(&wp->w_vars.dv_hashtab); /* free all w: variables */ 3994 #endif 3995 3996 if (prevwin == wp) 3997 prevwin = NULL; 3998 win_free_lsize(wp); 3999 4000 for (i = 0; i < wp->w_tagstacklen; ++i) 4001 vim_free(wp->w_tagstack[i].tagname); 4002 4003 vim_free(wp->w_localdir); 4004 #ifdef FEAT_SEARCH_EXTRA 4005 vim_free(wp->w_match[0].regprog); 4006 vim_free(wp->w_match[1].regprog); 4007 vim_free(wp->w_match[2].regprog); 4008 #endif 4009 #ifdef FEAT_JUMPLIST 4010 free_jumplist(wp); 4011 #endif 4012 4013 #ifdef FEAT_QUICKFIX 4014 qf_free_all(wp); 4015 #endif 4016 4017 #ifdef FEAT_GUI 4018 if (gui.in_use) 4019 { 4020 out_flush(); 4021 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_LEFT]); 4022 gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_RIGHT]); 4023 } 4024 #endif /* FEAT_GUI */ 4025 4026 win_remove(wp, tp); 4027 vim_free(wp); 4028 } 4029 4030 /* 4031 * Append window "wp" in the window list after window "after". 4032 */ 4033 static void 4034 win_append(after, wp) 4035 win_T *after, *wp; 4036 { 4037 win_T *before; 4038 4039 if (after == NULL) /* after NULL is in front of the first */ 4040 before = firstwin; 4041 else 4042 before = after->w_next; 4043 4044 wp->w_next = before; 4045 wp->w_prev = after; 4046 if (after == NULL) 4047 firstwin = wp; 4048 else 4049 after->w_next = wp; 4050 if (before == NULL) 4051 lastwin = wp; 4052 else 4053 before->w_prev = wp; 4054 } 4055 4056 /* 4057 * Remove a window from the window list. 4058 */ 4059 static void 4060 win_remove(wp, tp) 4061 win_T *wp; 4062 tabpage_T *tp; /* tab page "win" is in, NULL for current */ 4063 { 4064 if (wp->w_prev != NULL) 4065 wp->w_prev->w_next = wp->w_next; 4066 else if (tp == NULL) 4067 firstwin = wp->w_next; 4068 else 4069 tp->tp_firstwin = wp->w_next; 4070 if (wp->w_next != NULL) 4071 wp->w_next->w_prev = wp->w_prev; 4072 else if (tp == NULL) 4073 lastwin = wp->w_prev; 4074 else 4075 tp->tp_lastwin = wp->w_prev; 4076 } 4077 4078 /* 4079 * Append frame "frp" in a frame list after frame "after". 4080 */ 4081 static void 4082 frame_append(after, frp) 4083 frame_T *after, *frp; 4084 { 4085 frp->fr_next = after->fr_next; 4086 after->fr_next = frp; 4087 if (frp->fr_next != NULL) 4088 frp->fr_next->fr_prev = frp; 4089 frp->fr_prev = after; 4090 } 4091 4092 /* 4093 * Insert frame "frp" in a frame list before frame "before". 4094 */ 4095 static void 4096 frame_insert(before, frp) 4097 frame_T *before, *frp; 4098 { 4099 frp->fr_next = before; 4100 frp->fr_prev = before->fr_prev; 4101 before->fr_prev = frp; 4102 if (frp->fr_prev != NULL) 4103 frp->fr_prev->fr_next = frp; 4104 else 4105 frp->fr_parent->fr_child = frp; 4106 } 4107 4108 /* 4109 * Remove a frame from a frame list. 4110 */ 4111 static void 4112 frame_remove(frp) 4113 frame_T *frp; 4114 { 4115 if (frp->fr_prev != NULL) 4116 frp->fr_prev->fr_next = frp->fr_next; 4117 else 4118 frp->fr_parent->fr_child = frp->fr_next; 4119 if (frp->fr_next != NULL) 4120 frp->fr_next->fr_prev = frp->fr_prev; 4121 } 4122 4123 #endif /* FEAT_WINDOWS */ 4124 4125 /* 4126 * Allocate w_lines[] for window "wp". 4127 * Return FAIL for failure, OK for success. 4128 */ 4129 int 4130 win_alloc_lines(wp) 4131 win_T *wp; 4132 { 4133 wp->w_lines_valid = 0; 4134 wp->w_lines = (wline_T *)alloc((unsigned)(Rows * sizeof(wline_T))); 4135 if (wp->w_lines == NULL) 4136 return FAIL; 4137 return OK; 4138 } 4139 4140 /* 4141 * free lsize arrays for a window 4142 */ 4143 void 4144 win_free_lsize(wp) 4145 win_T *wp; 4146 { 4147 vim_free(wp->w_lines); 4148 wp->w_lines = NULL; 4149 } 4150 4151 /* 4152 * Called from win_new_shellsize() after Rows changed. 4153 * This only does the current tab page, others must be done when made active. 4154 */ 4155 void 4156 shell_new_rows() 4157 { 4158 int h = (int)ROWS_AVAIL; 4159 4160 if (firstwin == NULL) /* not initialized yet */ 4161 return; 4162 #ifdef FEAT_WINDOWS 4163 if (h < frame_minheight(topframe, NULL)) 4164 h = frame_minheight(topframe, NULL); 4165 4166 /* First try setting the heights of windows with 'winfixheight'. If 4167 * that doesn't result in the right height, forget about that option. */ 4168 frame_new_height(topframe, h, FALSE, TRUE); 4169 if (topframe->fr_height != h) 4170 frame_new_height(topframe, h, FALSE, FALSE); 4171 4172 (void)win_comp_pos(); /* recompute w_winrow and w_wincol */ 4173 #else 4174 if (h < 1) 4175 h = 1; 4176 win_new_height(firstwin, h); 4177 #endif 4178 compute_cmdrow(); 4179 #ifdef FEAT_WINDOWS 4180 p_ch_used = p_ch; 4181 #endif 4182 4183 #if 0 4184 /* Disabled: don't want making the screen smaller make a window larger. */ 4185 if (p_ea) 4186 win_equal(curwin, FALSE, 'v'); 4187 #endif 4188 } 4189 4190 #if defined(FEAT_VERTSPLIT) || defined(PROTO) 4191 /* 4192 * Called from win_new_shellsize() after Columns changed. 4193 */ 4194 void 4195 shell_new_columns() 4196 { 4197 if (firstwin == NULL) /* not initialized yet */ 4198 return; 4199 4200 /* First try setting the widths of windows with 'winfixwidth'. If that 4201 * doesn't result in the right width, forget about that option. */ 4202 frame_new_width(topframe, (int)Columns, FALSE, TRUE); 4203 if (topframe->fr_width != Columns) 4204 frame_new_width(topframe, (int)Columns, FALSE, FALSE); 4205 4206 (void)win_comp_pos(); /* recompute w_winrow and w_wincol */ 4207 #if 0 4208 /* Disabled: don't want making the screen smaller make a window larger. */ 4209 if (p_ea) 4210 win_equal(curwin, FALSE, 'h'); 4211 #endif 4212 } 4213 #endif 4214 4215 #if defined(FEAT_CMDWIN) || defined(PROTO) 4216 /* 4217 * Save the size of all windows in "gap". 4218 */ 4219 void 4220 win_size_save(gap) 4221 garray_T *gap; 4222 4223 { 4224 win_T *wp; 4225 4226 ga_init2(gap, (int)sizeof(int), 1); 4227 if (ga_grow(gap, win_count() * 2) == OK) 4228 for (wp = firstwin; wp != NULL; wp = wp->w_next) 4229 { 4230 ((int *)gap->ga_data)[gap->ga_len++] = 4231 wp->w_width + wp->w_vsep_width; 4232 ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height; 4233 } 4234 } 4235 4236 /* 4237 * Restore window sizes, but only if the number of windows is still the same. 4238 * Does not free the growarray. 4239 */ 4240 void 4241 win_size_restore(gap) 4242 garray_T *gap; 4243 { 4244 win_T *wp; 4245 int i; 4246 4247 if (win_count() * 2 == gap->ga_len) 4248 { 4249 i = 0; 4250 for (wp = firstwin; wp != NULL; wp = wp->w_next) 4251 { 4252 frame_setwidth(wp->w_frame, ((int *)gap->ga_data)[i++]); 4253 win_setheight_win(((int *)gap->ga_data)[i++], wp); 4254 } 4255 /* recompute the window positions */ 4256 (void)win_comp_pos(); 4257 } 4258 } 4259 #endif /* FEAT_CMDWIN */ 4260 4261 #if defined(FEAT_WINDOWS) || defined(PROTO) 4262 /* 4263 * Update the position for all windows, using the width and height of the 4264 * frames. 4265 * Returns the row just after the last window. 4266 */ 4267 int 4268 win_comp_pos() 4269 { 4270 int row = tabline_height(); 4271 int col = 0; 4272 4273 frame_comp_pos(topframe, &row, &col); 4274 return row; 4275 } 4276 4277 /* 4278 * Update the position of the windows in frame "topfrp", using the width and 4279 * height of the frames. 4280 * "*row" and "*col" are the top-left position of the frame. They are updated 4281 * to the bottom-right position plus one. 4282 */ 4283 static void 4284 frame_comp_pos(topfrp, row, col) 4285 frame_T *topfrp; 4286 int *row; 4287 int *col; 4288 { 4289 win_T *wp; 4290 frame_T *frp; 4291 #ifdef FEAT_VERTSPLIT 4292 int startcol; 4293 int startrow; 4294 #endif 4295 4296 wp = topfrp->fr_win; 4297 if (wp != NULL) 4298 { 4299 if (wp->w_winrow != *row 4300 #ifdef FEAT_VERTSPLIT 4301 || wp->w_wincol != *col 4302 #endif 4303 ) 4304 { 4305 /* position changed, redraw */ 4306 wp->w_winrow = *row; 4307 #ifdef FEAT_VERTSPLIT 4308 wp->w_wincol = *col; 4309 #endif 4310 redraw_win_later(wp, NOT_VALID); 4311 wp->w_redr_status = TRUE; 4312 } 4313 *row += wp->w_height + wp->w_status_height; 4314 #ifdef FEAT_VERTSPLIT 4315 *col += wp->w_width + wp->w_vsep_width; 4316 #endif 4317 } 4318 else 4319 { 4320 #ifdef FEAT_VERTSPLIT 4321 startrow = *row; 4322 startcol = *col; 4323 #endif 4324 for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) 4325 { 4326 #ifdef FEAT_VERTSPLIT 4327 if (topfrp->fr_layout == FR_ROW) 4328 *row = startrow; /* all frames are at the same row */ 4329 else 4330 *col = startcol; /* all frames are at the same col */ 4331 #endif 4332 frame_comp_pos(frp, row, col); 4333 } 4334 } 4335 } 4336 4337 #endif /* FEAT_WINDOWS */ 4338 4339 /* 4340 * Set current window height and take care of repositioning other windows to 4341 * fit around it. 4342 */ 4343 void 4344 win_setheight(height) 4345 int height; 4346 { 4347 win_setheight_win(height, curwin); 4348 } 4349 4350 /* 4351 * Set the window height of window "win" and take care of repositioning other 4352 * windows to fit around it. 4353 */ 4354 void 4355 win_setheight_win(height, win) 4356 int height; 4357 win_T *win; 4358 { 4359 int row; 4360 4361 if (win == curwin) 4362 { 4363 /* Always keep current window at least one line high, even when 4364 * 'winminheight' is zero. */ 4365 #ifdef FEAT_WINDOWS 4366 if (height < p_wmh) 4367 height = p_wmh; 4368 #endif 4369 if (height == 0) 4370 height = 1; 4371 } 4372 4373 #ifdef FEAT_WINDOWS 4374 frame_setheight(win->w_frame, height + win->w_status_height); 4375 4376 /* recompute the window positions */ 4377 row = win_comp_pos(); 4378 #else 4379 if (height > topframe->fr_height) 4380 height = topframe->fr_height; 4381 win->w_height = height; 4382 row = height; 4383 #endif 4384 4385 /* 4386 * If there is extra space created between the last window and the command 4387 * line, clear it. 4388 */ 4389 if (full_screen && msg_scrolled == 0 && row < cmdline_row) 4390 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 4391 cmdline_row = row; 4392 msg_row = row; 4393 msg_col = 0; 4394 4395 redraw_all_later(NOT_VALID); 4396 } 4397 4398 #if defined(FEAT_WINDOWS) || defined(PROTO) 4399 4400 /* 4401 * Set the height of a frame to "height" and take care that all frames and 4402 * windows inside it are resized. Also resize frames on the left and right if 4403 * the are in the same FR_ROW frame. 4404 * 4405 * Strategy: 4406 * If the frame is part of a FR_COL frame, try fitting the frame in that 4407 * frame. If that doesn't work (the FR_COL frame is too small), recursively 4408 * go to containing frames to resize them and make room. 4409 * If the frame is part of a FR_ROW frame, all frames must be resized as well. 4410 * Check for the minimal height of the FR_ROW frame. 4411 * At the top level we can also use change the command line height. 4412 */ 4413 static void 4414 frame_setheight(curfrp, height) 4415 frame_T *curfrp; 4416 int height; 4417 { 4418 int room; /* total number of lines available */ 4419 int take; /* number of lines taken from other windows */ 4420 int room_cmdline; /* lines available from cmdline */ 4421 int run; 4422 frame_T *frp; 4423 int h; 4424 int room_reserved; 4425 4426 /* If the height already is the desired value, nothing to do. */ 4427 if (curfrp->fr_height == height) 4428 return; 4429 4430 if (curfrp->fr_parent == NULL) 4431 { 4432 /* topframe: can only change the command line */ 4433 if (height > ROWS_AVAIL) 4434 height = ROWS_AVAIL; 4435 if (height > 0) 4436 frame_new_height(curfrp, height, FALSE, FALSE); 4437 } 4438 else if (curfrp->fr_parent->fr_layout == FR_ROW) 4439 { 4440 /* Row of frames: Also need to resize frames left and right of this 4441 * one. First check for the minimal height of these. */ 4442 h = frame_minheight(curfrp->fr_parent, NULL); 4443 if (height < h) 4444 height = h; 4445 frame_setheight(curfrp->fr_parent, height); 4446 } 4447 else 4448 { 4449 /* 4450 * Column of frames: try to change only frames in this column. 4451 */ 4452 #ifdef FEAT_VERTSPLIT 4453 /* 4454 * Do this twice: 4455 * 1: compute room available, if it's not enough try resizing the 4456 * containing frame. 4457 * 2: compute the room available and adjust the height to it. 4458 * Try not to reduce the height of a window with 'winfixheight' set. 4459 */ 4460 for (run = 1; run <= 2; ++run) 4461 #else 4462 for (;;) 4463 #endif 4464 { 4465 room = 0; 4466 room_reserved = 0; 4467 for (frp = curfrp->fr_parent->fr_child; frp != NULL; 4468 frp = frp->fr_next) 4469 { 4470 if (frp != curfrp 4471 && frp->fr_win != NULL 4472 && frp->fr_win->w_p_wfh) 4473 room_reserved += frp->fr_height; 4474 room += frp->fr_height; 4475 if (frp != curfrp) 4476 room -= frame_minheight(frp, NULL); 4477 } 4478 #ifdef FEAT_VERTSPLIT 4479 if (curfrp->fr_width != Columns) 4480 room_cmdline = 0; 4481 else 4482 #endif 4483 { 4484 room_cmdline = Rows - p_ch - (lastwin->w_winrow 4485 + lastwin->w_height + lastwin->w_status_height); 4486 if (room_cmdline < 0) 4487 room_cmdline = 0; 4488 } 4489 4490 if (height <= room + room_cmdline) 4491 break; 4492 #ifdef FEAT_VERTSPLIT 4493 if (run == 2 || curfrp->fr_width == Columns) 4494 #endif 4495 { 4496 if (height > room + room_cmdline) 4497 height = room + room_cmdline; 4498 break; 4499 } 4500 #ifdef FEAT_VERTSPLIT 4501 frame_setheight(curfrp->fr_parent, height 4502 + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1); 4503 #endif 4504 /*NOTREACHED*/ 4505 } 4506 4507 /* 4508 * Compute the number of lines we will take from others frames (can be 4509 * negative!). 4510 */ 4511 take = height - curfrp->fr_height; 4512 4513 /* If there is not enough room, also reduce the height of a window 4514 * with 'winfixheight' set. */ 4515 if (height > room + room_cmdline - room_reserved) 4516 room_reserved = room + room_cmdline - height; 4517 /* If there is only a 'winfixheight' window and making the 4518 * window smaller, need to make the other window taller. */ 4519 if (take < 0 && room - curfrp->fr_height < room_reserved) 4520 room_reserved = 0; 4521 4522 if (take > 0 && room_cmdline > 0) 4523 { 4524 /* use lines from cmdline first */ 4525 if (take < room_cmdline) 4526 room_cmdline = take; 4527 take -= room_cmdline; 4528 topframe->fr_height += room_cmdline; 4529 } 4530 4531 /* 4532 * set the current frame to the new height 4533 */ 4534 frame_new_height(curfrp, height, FALSE, FALSE); 4535 4536 /* 4537 * First take lines from the frames after the current frame. If 4538 * that is not enough, takes lines from frames above the current 4539 * frame. 4540 */ 4541 for (run = 0; run < 2; ++run) 4542 { 4543 if (run == 0) 4544 frp = curfrp->fr_next; /* 1st run: start with next window */ 4545 else 4546 frp = curfrp->fr_prev; /* 2nd run: start with prev window */ 4547 while (frp != NULL && take != 0) 4548 { 4549 h = frame_minheight(frp, NULL); 4550 if (room_reserved > 0 4551 && frp->fr_win != NULL 4552 && frp->fr_win->w_p_wfh) 4553 { 4554 if (room_reserved >= frp->fr_height) 4555 room_reserved -= frp->fr_height; 4556 else 4557 { 4558 if (frp->fr_height - room_reserved > take) 4559 room_reserved = frp->fr_height - take; 4560 take -= frp->fr_height - room_reserved; 4561 frame_new_height(frp, room_reserved, FALSE, FALSE); 4562 room_reserved = 0; 4563 } 4564 } 4565 else 4566 { 4567 if (frp->fr_height - take < h) 4568 { 4569 take -= frp->fr_height - h; 4570 frame_new_height(frp, h, FALSE, FALSE); 4571 } 4572 else 4573 { 4574 frame_new_height(frp, frp->fr_height - take, 4575 FALSE, FALSE); 4576 take = 0; 4577 } 4578 } 4579 if (run == 0) 4580 frp = frp->fr_next; 4581 else 4582 frp = frp->fr_prev; 4583 } 4584 } 4585 } 4586 } 4587 4588 #if defined(FEAT_VERTSPLIT) || defined(PROTO) 4589 /* 4590 * Set current window width and take care of repositioning other windows to 4591 * fit around it. 4592 */ 4593 void 4594 win_setwidth(width) 4595 int width; 4596 { 4597 win_setwidth_win(width, curwin); 4598 } 4599 4600 void 4601 win_setwidth_win(width, wp) 4602 int width; 4603 win_T *wp; 4604 { 4605 /* Always keep current window at least one column wide, even when 4606 * 'winminwidth' is zero. */ 4607 if (wp == curwin) 4608 { 4609 if (width < p_wmw) 4610 width = p_wmw; 4611 if (width == 0) 4612 width = 1; 4613 } 4614 4615 frame_setwidth(wp->w_frame, width + wp->w_vsep_width); 4616 4617 /* recompute the window positions */ 4618 (void)win_comp_pos(); 4619 4620 redraw_all_later(NOT_VALID); 4621 } 4622 4623 /* 4624 * Set the width of a frame to "width" and take care that all frames and 4625 * windows inside it are resized. Also resize frames above and below if the 4626 * are in the same FR_ROW frame. 4627 * 4628 * Strategy is similar to frame_setheight(). 4629 */ 4630 static void 4631 frame_setwidth(curfrp, width) 4632 frame_T *curfrp; 4633 int width; 4634 { 4635 int room; /* total number of lines available */ 4636 int take; /* number of lines taken from other windows */ 4637 int run; 4638 frame_T *frp; 4639 int w; 4640 int room_reserved; 4641 4642 /* If the width already is the desired value, nothing to do. */ 4643 if (curfrp->fr_width == width) 4644 return; 4645 4646 if (curfrp->fr_parent == NULL) 4647 /* topframe: can't change width */ 4648 return; 4649 4650 if (curfrp->fr_parent->fr_layout == FR_COL) 4651 { 4652 /* Column of frames: Also need to resize frames above and below of 4653 * this one. First check for the minimal width of these. */ 4654 w = frame_minwidth(curfrp->fr_parent, NULL); 4655 if (width < w) 4656 width = w; 4657 frame_setwidth(curfrp->fr_parent, width); 4658 } 4659 else 4660 { 4661 /* 4662 * Row of frames: try to change only frames in this row. 4663 * 4664 * Do this twice: 4665 * 1: compute room available, if it's not enough try resizing the 4666 * containing frame. 4667 * 2: compute the room available and adjust the width to it. 4668 */ 4669 for (run = 1; run <= 2; ++run) 4670 { 4671 room = 0; 4672 room_reserved = 0; 4673 for (frp = curfrp->fr_parent->fr_child; frp != NULL; 4674 frp = frp->fr_next) 4675 { 4676 if (frp != curfrp 4677 && frp->fr_win != NULL 4678 && frp->fr_win->w_p_wfw) 4679 room_reserved += frp->fr_width; 4680 room += frp->fr_width; 4681 if (frp != curfrp) 4682 room -= frame_minwidth(frp, NULL); 4683 } 4684 4685 if (width <= room) 4686 break; 4687 if (run == 2 || curfrp->fr_height >= ROWS_AVAIL) 4688 { 4689 if (width > room) 4690 width = room; 4691 break; 4692 } 4693 frame_setwidth(curfrp->fr_parent, width 4694 + frame_minwidth(curfrp->fr_parent, NOWIN) - (int)p_wmw - 1); 4695 } 4696 4697 /* 4698 * Compute the number of lines we will take from others frames (can be 4699 * negative!). 4700 */ 4701 take = width - curfrp->fr_width; 4702 4703 /* If there is not enough room, also reduce the width of a window 4704 * with 'winfixwidth' set. */ 4705 if (width > room - room_reserved) 4706 room_reserved = room - width; 4707 /* If there is only a 'winfixwidth' window and making the 4708 * window smaller, need to make the other window narrower. */ 4709 if (take < 0 && room - curfrp->fr_width < room_reserved) 4710 room_reserved = 0; 4711 4712 /* 4713 * set the current frame to the new width 4714 */ 4715 frame_new_width(curfrp, width, FALSE, FALSE); 4716 4717 /* 4718 * First take lines from the frames right of the current frame. If 4719 * that is not enough, takes lines from frames left of the current 4720 * frame. 4721 */ 4722 for (run = 0; run < 2; ++run) 4723 { 4724 if (run == 0) 4725 frp = curfrp->fr_next; /* 1st run: start with next window */ 4726 else 4727 frp = curfrp->fr_prev; /* 2nd run: start with prev window */ 4728 while (frp != NULL && take != 0) 4729 { 4730 w = frame_minwidth(frp, NULL); 4731 if (room_reserved > 0 4732 && frp->fr_win != NULL 4733 && frp->fr_win->w_p_wfw) 4734 { 4735 if (room_reserved >= frp->fr_width) 4736 room_reserved -= frp->fr_width; 4737 else 4738 { 4739 if (frp->fr_width - room_reserved > take) 4740 room_reserved = frp->fr_width - take; 4741 take -= frp->fr_width - room_reserved; 4742 frame_new_width(frp, room_reserved, FALSE, FALSE); 4743 room_reserved = 0; 4744 } 4745 } 4746 else 4747 { 4748 if (frp->fr_width - take < w) 4749 { 4750 take -= frp->fr_width - w; 4751 frame_new_width(frp, w, FALSE, FALSE); 4752 } 4753 else 4754 { 4755 frame_new_width(frp, frp->fr_width - take, 4756 FALSE, FALSE); 4757 take = 0; 4758 } 4759 } 4760 if (run == 0) 4761 frp = frp->fr_next; 4762 else 4763 frp = frp->fr_prev; 4764 } 4765 } 4766 } 4767 } 4768 #endif /* FEAT_VERTSPLIT */ 4769 4770 /* 4771 * Check 'winminheight' for a valid value. 4772 */ 4773 void 4774 win_setminheight() 4775 { 4776 int room; 4777 int first = TRUE; 4778 win_T *wp; 4779 4780 /* loop until there is a 'winminheight' that is possible */ 4781 while (p_wmh > 0) 4782 { 4783 /* TODO: handle vertical splits */ 4784 room = -p_wh; 4785 for (wp = firstwin; wp != NULL; wp = wp->w_next) 4786 room += wp->w_height - p_wmh; 4787 if (room >= 0) 4788 break; 4789 --p_wmh; 4790 if (first) 4791 { 4792 EMSG(_(e_noroom)); 4793 first = FALSE; 4794 } 4795 } 4796 } 4797 4798 #ifdef FEAT_MOUSE 4799 4800 /* 4801 * Status line of dragwin is dragged "offset" lines down (negative is up). 4802 */ 4803 void 4804 win_drag_status_line(dragwin, offset) 4805 win_T *dragwin; 4806 int offset; 4807 { 4808 frame_T *curfr; 4809 frame_T *fr; 4810 int room; 4811 int row; 4812 int up; /* if TRUE, drag status line up, otherwise down */ 4813 int n; 4814 4815 fr = dragwin->w_frame; 4816 curfr = fr; 4817 if (fr != topframe) /* more than one window */ 4818 { 4819 fr = fr->fr_parent; 4820 /* When the parent frame is not a column of frames, its parent should 4821 * be. */ 4822 if (fr->fr_layout != FR_COL) 4823 { 4824 curfr = fr; 4825 if (fr != topframe) /* only a row of windows, may drag statusline */ 4826 fr = fr->fr_parent; 4827 } 4828 } 4829 4830 /* If this is the last frame in a column, may want to resize the parent 4831 * frame instead (go two up to skip a row of frames). */ 4832 while (curfr != topframe && curfr->fr_next == NULL) 4833 { 4834 if (fr != topframe) 4835 fr = fr->fr_parent; 4836 curfr = fr; 4837 if (fr != topframe) 4838 fr = fr->fr_parent; 4839 } 4840 4841 if (offset < 0) /* drag up */ 4842 { 4843 up = TRUE; 4844 offset = -offset; 4845 /* sum up the room of the current frame and above it */ 4846 if (fr == curfr) 4847 { 4848 /* only one window */ 4849 room = fr->fr_height - frame_minheight(fr, NULL); 4850 } 4851 else 4852 { 4853 room = 0; 4854 for (fr = fr->fr_child; ; fr = fr->fr_next) 4855 { 4856 room += fr->fr_height - frame_minheight(fr, NULL); 4857 if (fr == curfr) 4858 break; 4859 } 4860 } 4861 fr = curfr->fr_next; /* put fr at frame that grows */ 4862 } 4863 else /* drag down */ 4864 { 4865 up = FALSE; 4866 /* 4867 * Only dragging the last status line can reduce p_ch. 4868 */ 4869 room = Rows - cmdline_row; 4870 if (curfr->fr_next == NULL) 4871 room -= 1; 4872 else 4873 room -= p_ch; 4874 if (room < 0) 4875 room = 0; 4876 /* sum up the room of frames below of the current one */ 4877 for (fr = curfr->fr_next; fr != NULL; fr = fr->fr_next) 4878 room += fr->fr_height - frame_minheight(fr, NULL); 4879 fr = curfr; /* put fr at window that grows */ 4880 } 4881 4882 if (room < offset) /* Not enough room */ 4883 offset = room; /* Move as far as we can */ 4884 if (offset <= 0) 4885 return; 4886 4887 /* 4888 * Grow frame fr by "offset" lines. 4889 * Doesn't happen when dragging the last status line up. 4890 */ 4891 if (fr != NULL) 4892 frame_new_height(fr, fr->fr_height + offset, up, FALSE); 4893 4894 if (up) 4895 fr = curfr; /* current frame gets smaller */ 4896 else 4897 fr = curfr->fr_next; /* next frame gets smaller */ 4898 4899 /* 4900 * Now make the other frames smaller. 4901 */ 4902 while (fr != NULL && offset > 0) 4903 { 4904 n = frame_minheight(fr, NULL); 4905 if (fr->fr_height - offset <= n) 4906 { 4907 offset -= fr->fr_height - n; 4908 frame_new_height(fr, n, !up, FALSE); 4909 } 4910 else 4911 { 4912 frame_new_height(fr, fr->fr_height - offset, !up, FALSE); 4913 break; 4914 } 4915 if (up) 4916 fr = fr->fr_prev; 4917 else 4918 fr = fr->fr_next; 4919 } 4920 row = win_comp_pos(); 4921 screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); 4922 cmdline_row = row; 4923 p_ch = Rows - cmdline_row; 4924 if (p_ch < 1) 4925 p_ch = 1; 4926 redraw_all_later(SOME_VALID); 4927 showmode(); 4928 } 4929 4930 #ifdef FEAT_VERTSPLIT 4931 /* 4932 * Separator line of dragwin is dragged "offset" lines right (negative is left). 4933 */ 4934 void 4935 win_drag_vsep_line(dragwin, offset) 4936 win_T *dragwin; 4937 int offset; 4938 { 4939 frame_T *curfr; 4940 frame_T *fr; 4941 int room; 4942 int left; /* if TRUE, drag separator line left, otherwise right */ 4943 int n; 4944 4945 fr = dragwin->w_frame; 4946 if (fr == topframe) /* only one window (cannot happe?) */ 4947 return; 4948 curfr = fr; 4949 fr = fr->fr_parent; 4950 /* When the parent frame is not a row of frames, its parent should be. */ 4951 if (fr->fr_layout != FR_ROW) 4952 { 4953 if (fr == topframe) /* only a column of windows (cannot happen?) */ 4954 return; 4955 curfr = fr; 4956 fr = fr->fr_parent; 4957 } 4958 4959 /* If this is the last frame in a row, may want to resize a parent 4960 * frame instead. */ 4961 while (curfr->fr_next == NULL) 4962 { 4963 if (fr == topframe) 4964 break; 4965 curfr = fr; 4966 fr = fr->fr_parent; 4967 if (fr != topframe) 4968 { 4969 curfr = fr; 4970 fr = fr->fr_parent; 4971 } 4972 } 4973 4974 if (offset < 0) /* drag left */ 4975 { 4976 left = TRUE; 4977 offset = -offset; 4978 /* sum up the room of the current frame and left of it */ 4979 room = 0; 4980 for (fr = fr->fr_child; ; fr = fr->fr_next) 4981 { 4982 room += fr->fr_width - frame_minwidth(fr, NULL); 4983 if (fr == curfr) 4984 break; 4985 } 4986 fr = curfr->fr_next; /* put fr at frame that grows */ 4987 } 4988 else /* drag right */ 4989 { 4990 left = FALSE; 4991 /* sum up the room of frames right of the current one */ 4992 room = 0; 4993 for (fr = curfr->fr_next; fr != NULL; fr = fr->fr_next) 4994 room += fr->fr_width - frame_minwidth(fr, NULL); 4995 fr = curfr; /* put fr at window that grows */ 4996 } 4997 4998 if (room < offset) /* Not enough room */ 4999 offset = room; /* Move as far as we can */ 5000 if (offset <= 0) /* No room at all, quit. */ 5001 return; 5002 5003 /* grow frame fr by offset lines */ 5004 frame_new_width(fr, fr->fr_width + offset, left, FALSE); 5005 5006 /* shrink other frames: current and at the left or at the right */ 5007 if (left) 5008 fr = curfr; /* current frame gets smaller */ 5009 else 5010 fr = curfr->fr_next; /* next frame gets smaller */ 5011 5012 while (fr != NULL && offset > 0) 5013 { 5014 n = frame_minwidth(fr, NULL); 5015 if (fr->fr_width - offset <= n) 5016 { 5017 offset -= fr->fr_width - n; 5018 frame_new_width(fr, n, !left, FALSE); 5019 } 5020 else 5021 { 5022 frame_new_width(fr, fr->fr_width - offset, !left, FALSE); 5023 break; 5024 } 5025 if (left) 5026 fr = fr->fr_prev; 5027 else 5028 fr = fr->fr_next; 5029 } 5030 (void)win_comp_pos(); 5031 redraw_all_later(NOT_VALID); 5032 } 5033 #endif /* FEAT_VERTSPLIT */ 5034 #endif /* FEAT_MOUSE */ 5035 5036 #endif /* FEAT_WINDOWS */ 5037 5038 /* 5039 * Set the height of a window. 5040 * This takes care of the things inside the window, not what happens to the 5041 * window position, the frame or to other windows. 5042 */ 5043 static void 5044 win_new_height(wp, height) 5045 win_T *wp; 5046 int height; 5047 { 5048 linenr_T lnum; 5049 linenr_T bot; 5050 int sline, line_size; 5051 int space; 5052 int did_below = FALSE; 5053 #define FRACTION_MULT 16384L 5054 5055 /* Don't want a negative height. Happens when splitting a tiny window. 5056 * Will equalize heights soon to fix it. */ 5057 if (height < 0) 5058 height = 0; 5059 5060 if (wp->w_wrow != wp->w_prev_fraction_row && wp->w_height > 0) 5061 wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT 5062 + FRACTION_MULT / 2) / (long)wp->w_height; 5063 5064 wp->w_height = height; 5065 wp->w_skipcol = 0; 5066 5067 /* Don't change w_topline when height is zero. Don't set w_topline when 5068 * 'scrollbind' is set and this isn't the current window. */ 5069 if (height > 0 5070 #ifdef FEAT_SCROLLBIND 5071 && (!wp->w_p_scb || wp == curwin) 5072 #endif 5073 ) 5074 { 5075 /* 5076 * Find a value for w_topline that shows the cursor at the same 5077 * relative position in the window as before (more or less). 5078 */ 5079 lnum = wp->w_cursor.lnum; 5080 if (lnum < 1) /* can happen when starting up */ 5081 lnum = 1; 5082 wp->w_wrow = ((long)wp->w_fraction * (long)height - 1L) / FRACTION_MULT; 5083 line_size = plines_win_col(wp, lnum, (long)(wp->w_cursor.col)) - 1; 5084 sline = wp->w_wrow - line_size; 5085 if (sline < 0) 5086 { 5087 /* 5088 * Cursor line would go off top of screen if w_wrow was this high. 5089 */ 5090 wp->w_wrow = line_size; 5091 } 5092 else 5093 { 5094 space = height; 5095 while (lnum > 1) 5096 { 5097 space -= line_size; 5098 if (space > 0 && sline <= 0 && !did_below) 5099 { 5100 /* Try to use "~" lines below the text to avoid that text 5101 * is above the window while there are empty lines. 5102 * Subtract the rows below the cursor from "space" and 5103 * give the rest to "sline". */ 5104 did_below = TRUE; 5105 bot = wp->w_cursor.lnum; 5106 while (space > 0) 5107 { 5108 if (wp->w_buffer->b_ml.ml_line_count - bot >= space) 5109 space = 0; 5110 else 5111 { 5112 #ifdef FEAT_FOLDING 5113 hasFoldingWin(wp, bot, NULL, &bot, TRUE, NULL); 5114 #endif 5115 if (bot >= wp->w_buffer->b_ml.ml_line_count) 5116 break; 5117 ++bot; 5118 space -= plines_win(wp, bot, TRUE); 5119 } 5120 } 5121 if (bot == wp->w_buffer->b_ml.ml_line_count && space > 0) 5122 sline += space; 5123 } 5124 if (sline <= 0) 5125 break; 5126 5127 #ifdef FEAT_FOLDING 5128 hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); 5129 if (lnum == 1) 5130 { 5131 /* first line in buffer is folded */ 5132 line_size = 1; 5133 --sline; 5134 break; 5135 } 5136 #endif 5137 --lnum; 5138 #ifdef FEAT_DIFF 5139 if (lnum == wp->w_topline) 5140 line_size = plines_win_nofill(wp, lnum, TRUE) 5141 + wp->w_topfill; 5142 else 5143 #endif 5144 line_size = plines_win(wp, lnum, TRUE); 5145 sline -= line_size; 5146 } 5147 5148 if (sline < 0) 5149 { 5150 /* 5151 * Line we want at top would go off top of screen. Use next 5152 * line instead. 5153 */ 5154 #ifdef FEAT_FOLDING 5155 hasFoldingWin(wp, lnum, NULL, &lnum, TRUE, NULL); 5156 #endif 5157 lnum++; 5158 wp->w_wrow -= line_size + sline; 5159 } 5160 else if (sline > 0) 5161 { 5162 /* First line of file reached, use that as topline. */ 5163 lnum = 1; 5164 wp->w_wrow -= sline; 5165 } 5166 } 5167 set_topline(wp, lnum); 5168 } 5169 5170 if (wp == curwin) 5171 { 5172 if (p_so) 5173 update_topline(); 5174 curs_columns(FALSE); /* validate w_wrow */ 5175 } 5176 wp->w_prev_fraction_row = wp->w_wrow; 5177 5178 win_comp_scroll(wp); 5179 redraw_win_later(wp, SOME_VALID); 5180 #ifdef FEAT_WINDOWS 5181 wp->w_redr_status = TRUE; 5182 #endif 5183 invalidate_botline_win(wp); 5184 } 5185 5186 #ifdef FEAT_VERTSPLIT 5187 /* 5188 * Set the width of a window. 5189 */ 5190 static void 5191 win_new_width(wp, width) 5192 win_T *wp; 5193 int width; 5194 { 5195 wp->w_width = width; 5196 wp->w_lines_valid = 0; 5197 changed_line_abv_curs_win(wp); 5198 invalidate_botline_win(wp); 5199 if (wp == curwin) 5200 { 5201 update_topline(); 5202 curs_columns(TRUE); /* validate w_wrow */ 5203 } 5204 redraw_win_later(wp, NOT_VALID); 5205 wp->w_redr_status = TRUE; 5206 } 5207 #endif 5208 5209 void 5210 win_comp_scroll(wp) 5211 win_T *wp; 5212 { 5213 wp->w_p_scr = ((unsigned)wp->w_height >> 1); 5214 if (wp->w_p_scr == 0) 5215 wp->w_p_scr = 1; 5216 } 5217 5218 /* 5219 * command_height: called whenever p_ch has been changed 5220 */ 5221 void 5222 command_height(old_p_ch) 5223 long old_p_ch; 5224 { 5225 #ifdef FEAT_WINDOWS 5226 int h; 5227 frame_T *frp; 5228 5229 /* When passed a negative value use the value of p_ch that we remembered. 5230 * This is needed for when the GUI starts up, we can't be sure in what 5231 * order things happen. */ 5232 if (old_p_ch < 0) 5233 old_p_ch = p_ch_used; 5234 p_ch_used = p_ch; 5235 5236 /* Find bottom frame with width of screen. */ 5237 frp = lastwin->w_frame; 5238 # ifdef FEAT_VERTSPLIT 5239 while (frp->fr_width != Columns && frp->fr_parent != NULL) 5240 frp = frp->fr_parent; 5241 # endif 5242 5243 /* Avoid changing the height of a window with 'winfixheight' set. */ 5244 while (frp->fr_prev != NULL && frp->fr_layout == FR_LEAF 5245 && frp->fr_win->w_p_wfh) 5246 frp = frp->fr_prev; 5247 5248 if (starting != NO_SCREEN) 5249 { 5250 cmdline_row = Rows - p_ch; 5251 5252 if (p_ch > old_p_ch) /* p_ch got bigger */ 5253 { 5254 while (p_ch > old_p_ch) 5255 { 5256 if (frp == NULL) 5257 { 5258 EMSG(_(e_noroom)); 5259 p_ch = old_p_ch; 5260 cmdline_row = Rows - p_ch; 5261 break; 5262 } 5263 h = frp->fr_height - frame_minheight(frp, NULL); 5264 if (h > p_ch - old_p_ch) 5265 h = p_ch - old_p_ch; 5266 old_p_ch += h; 5267 frame_add_height(frp, -h); 5268 frp = frp->fr_prev; 5269 } 5270 5271 /* Recompute window positions. */ 5272 (void)win_comp_pos(); 5273 5274 /* clear the lines added to cmdline */ 5275 if (full_screen) 5276 screen_fill((int)(cmdline_row), (int)Rows, 0, 5277 (int)Columns, ' ', ' ', 0); 5278 msg_row = cmdline_row; 5279 redraw_cmdline = TRUE; 5280 return; 5281 } 5282 5283 if (msg_row < cmdline_row) 5284 msg_row = cmdline_row; 5285 redraw_cmdline = TRUE; 5286 } 5287 frame_add_height(frp, (int)(old_p_ch - p_ch)); 5288 5289 /* Recompute window positions. */ 5290 if (frp != lastwin->w_frame) 5291 (void)win_comp_pos(); 5292 #else 5293 win_setheight((int)(firstwin->w_height + old_p_ch - p_ch)); 5294 cmdline_row = Rows - p_ch; 5295 #endif 5296 } 5297 5298 #if defined(FEAT_WINDOWS) || defined(PROTO) 5299 /* 5300 * Resize frame "frp" to be "n" lines higher (negative for less high). 5301 * Also resize the frames it is contained in. 5302 */ 5303 static void 5304 frame_add_height(frp, n) 5305 frame_T *frp; 5306 int n; 5307 { 5308 frame_new_height(frp, frp->fr_height + n, FALSE, FALSE); 5309 for (;;) 5310 { 5311 frp = frp->fr_parent; 5312 if (frp == NULL) 5313 break; 5314 frp->fr_height += n; 5315 } 5316 } 5317 5318 /* 5319 * Add or remove a status line for the bottom window(s), according to the 5320 * value of 'laststatus'. 5321 */ 5322 void 5323 last_status(morewin) 5324 int morewin; /* pretend there are two or more windows */ 5325 { 5326 /* Don't make a difference between horizontal or vertical split. */ 5327 last_status_rec(topframe, (p_ls == 2 5328 || (p_ls == 1 && (morewin || lastwin != firstwin)))); 5329 } 5330 5331 static void 5332 last_status_rec(fr, statusline) 5333 frame_T *fr; 5334 int statusline; 5335 { 5336 frame_T *fp; 5337 win_T *wp; 5338 5339 if (fr->fr_layout == FR_LEAF) 5340 { 5341 wp = fr->fr_win; 5342 if (wp->w_status_height != 0 && !statusline) 5343 { 5344 /* remove status line */ 5345 win_new_height(wp, wp->w_height + 1); 5346 wp->w_status_height = 0; 5347 comp_col(); 5348 } 5349 else if (wp->w_status_height == 0 && statusline) 5350 { 5351 /* Find a frame to take a line from. */ 5352 fp = fr; 5353 while (fp->fr_height <= frame_minheight(fp, NULL)) 5354 { 5355 if (fp == topframe) 5356 { 5357 EMSG(_(e_noroom)); 5358 return; 5359 } 5360 /* In a column of frames: go to frame above. If already at 5361 * the top or in a row of frames: go to parent. */ 5362 if (fp->fr_parent->fr_layout == FR_COL && fp->fr_prev != NULL) 5363 fp = fp->fr_prev; 5364 else 5365 fp = fp->fr_parent; 5366 } 5367 wp->w_status_height = 1; 5368 if (fp != fr) 5369 { 5370 frame_new_height(fp, fp->fr_height - 1, FALSE, FALSE); 5371 frame_fix_height(wp); 5372 (void)win_comp_pos(); 5373 } 5374 else 5375 win_new_height(wp, wp->w_height - 1); 5376 comp_col(); 5377 redraw_all_later(SOME_VALID); 5378 } 5379 } 5380 #ifdef FEAT_VERTSPLIT 5381 else if (fr->fr_layout == FR_ROW) 5382 { 5383 /* vertically split windows, set status line for each one */ 5384 for (fp = fr->fr_child; fp != NULL; fp = fp->fr_next) 5385 last_status_rec(fp, statusline); 5386 } 5387 #endif 5388 else 5389 { 5390 /* horizontally split window, set status line for last one */ 5391 for (fp = fr->fr_child; fp->fr_next != NULL; fp = fp->fr_next) 5392 ; 5393 last_status_rec(fp, statusline); 5394 } 5395 } 5396 5397 /* 5398 * Return the number of lines used by the tab page line. 5399 */ 5400 int 5401 tabline_height() 5402 { 5403 #ifdef FEAT_GUI_TABLINE 5404 /* When the GUI has the tabline then this always returns zero. */ 5405 if (gui_use_tabline()) 5406 return 0; 5407 #endif 5408 switch (p_stal) 5409 { 5410 case 0: return 0; 5411 case 1: return (first_tabpage->tp_next == NULL) ? 0 : 1; 5412 } 5413 return 1; 5414 } 5415 5416 #endif /* FEAT_WINDOWS */ 5417 5418 #if defined(FEAT_SEARCHPATH) || defined(PROTO) 5419 /* 5420 * Get the file name at the cursor. 5421 * If Visual mode is active, use the selected text if it's in one line. 5422 * Returns the name in allocated memory, NULL for failure. 5423 */ 5424 char_u * 5425 grab_file_name(count, file_lnum) 5426 long count; 5427 linenr_T *file_lnum; 5428 { 5429 # ifdef FEAT_VISUAL 5430 if (VIsual_active) 5431 { 5432 int len; 5433 char_u *ptr; 5434 5435 if (get_visual_text(NULL, &ptr, &len) == FAIL) 5436 return NULL; 5437 return find_file_name_in_path(ptr, len, 5438 FNAME_MESS|FNAME_EXP|FNAME_REL, count, curbuf->b_ffname); 5439 } 5440 # endif 5441 return file_name_at_cursor(FNAME_MESS|FNAME_HYP|FNAME_EXP|FNAME_REL, count, 5442 file_lnum); 5443 5444 } 5445 5446 /* 5447 * Return the file name under or after the cursor. 5448 * 5449 * The 'path' option is searched if the file name is not absolute. 5450 * The string returned has been alloc'ed and should be freed by the caller. 5451 * NULL is returned if the file name or file is not found. 5452 * 5453 * options: 5454 * FNAME_MESS give error messages 5455 * FNAME_EXP expand to path 5456 * FNAME_HYP check for hypertext link 5457 * FNAME_INCL apply "includeexpr" 5458 */ 5459 char_u * 5460 file_name_at_cursor(options, count, file_lnum) 5461 int options; 5462 long count; 5463 linenr_T *file_lnum; 5464 { 5465 return file_name_in_line(ml_get_curline(), 5466 curwin->w_cursor.col, options, count, curbuf->b_ffname, 5467 file_lnum); 5468 } 5469 5470 /* 5471 * Return the name of the file under or after ptr[col]. 5472 * Otherwise like file_name_at_cursor(). 5473 */ 5474 char_u * 5475 file_name_in_line(line, col, options, count, rel_fname, file_lnum) 5476 char_u *line; 5477 int col; 5478 int options; 5479 long count; 5480 char_u *rel_fname; /* file we are searching relative to */ 5481 linenr_T *file_lnum; /* line number after the file name */ 5482 { 5483 char_u *ptr; 5484 int len; 5485 5486 /* 5487 * search forward for what could be the start of a file name 5488 */ 5489 ptr = line + col; 5490 while (*ptr != NUL && !vim_isfilec(*ptr)) 5491 mb_ptr_adv(ptr); 5492 if (*ptr == NUL) /* nothing found */ 5493 { 5494 if (options & FNAME_MESS) 5495 EMSG(_("E446: No file name under cursor")); 5496 return NULL; 5497 } 5498 5499 /* 5500 * Search backward for first char of the file name. 5501 * Go one char back to ":" before "//" even when ':' is not in 'isfname'. 5502 */ 5503 while (ptr > line) 5504 { 5505 #ifdef FEAT_MBYTE 5506 if (has_mbyte && (len = (*mb_head_off)(line, ptr - 1)) > 0) 5507 ptr -= len + 1; 5508 else 5509 #endif 5510 if (vim_isfilec(ptr[-1]) 5511 || ((options & FNAME_HYP) && path_is_url(ptr - 1))) 5512 --ptr; 5513 else 5514 break; 5515 } 5516 5517 /* 5518 * Search forward for the last char of the file name. 5519 * Also allow "://" when ':' is not in 'isfname'. 5520 */ 5521 len = 0; 5522 while (vim_isfilec(ptr[len]) 5523 || ((options & FNAME_HYP) && path_is_url(ptr + len))) 5524 #ifdef FEAT_MBYTE 5525 if (has_mbyte) 5526 len += (*mb_ptr2len)(ptr + len); 5527 else 5528 #endif 5529 ++len; 5530 5531 /* 5532 * If there is trailing punctuation, remove it. 5533 * But don't remove "..", could be a directory name. 5534 */ 5535 if (len > 2 && vim_strchr((char_u *)".,:;!", ptr[len - 1]) != NULL 5536 && ptr[len - 2] != '.') 5537 --len; 5538 5539 if (file_lnum != NULL) 5540 { 5541 char_u *p; 5542 5543 /* Get the number after the file name and a separator character */ 5544 p = ptr + len; 5545 p = skipwhite(p); 5546 if (*p != NUL) 5547 { 5548 if (!isdigit(*p)) 5549 ++p; /* skip the separator */ 5550 p = skipwhite(p); 5551 if (isdigit(*p)) 5552 *file_lnum = (int)getdigits(&p); 5553 } 5554 } 5555 5556 return find_file_name_in_path(ptr, len, options, count, rel_fname); 5557 } 5558 5559 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 5560 static char_u *eval_includeexpr __ARGS((char_u *ptr, int len)); 5561 5562 static char_u * 5563 eval_includeexpr(ptr, len) 5564 char_u *ptr; 5565 int len; 5566 { 5567 char_u *res; 5568 5569 set_vim_var_string(VV_FNAME, ptr, len); 5570 res = eval_to_string_safe(curbuf->b_p_inex, NULL, 5571 was_set_insecurely((char_u *)"includeexpr", OPT_LOCAL)); 5572 set_vim_var_string(VV_FNAME, NULL, 0); 5573 return res; 5574 } 5575 #endif 5576 5577 /* 5578 * Return the name of the file ptr[len] in 'path'. 5579 * Otherwise like file_name_at_cursor(). 5580 */ 5581 char_u * 5582 find_file_name_in_path(ptr, len, options, count, rel_fname) 5583 char_u *ptr; 5584 int len; 5585 int options; 5586 long count; 5587 char_u *rel_fname; /* file we are searching relative to */ 5588 { 5589 char_u *file_name; 5590 int c; 5591 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 5592 char_u *tofree = NULL; 5593 5594 if ((options & FNAME_INCL) && *curbuf->b_p_inex != NUL) 5595 { 5596 tofree = eval_includeexpr(ptr, len); 5597 if (tofree != NULL) 5598 { 5599 ptr = tofree; 5600 len = (int)STRLEN(ptr); 5601 } 5602 } 5603 # endif 5604 5605 if (options & FNAME_EXP) 5606 { 5607 file_name = find_file_in_path(ptr, len, options & ~FNAME_MESS, 5608 TRUE, rel_fname); 5609 5610 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 5611 /* 5612 * If the file could not be found in a normal way, try applying 5613 * 'includeexpr' (unless done already). 5614 */ 5615 if (file_name == NULL 5616 && !(options & FNAME_INCL) && *curbuf->b_p_inex != NUL) 5617 { 5618 tofree = eval_includeexpr(ptr, len); 5619 if (tofree != NULL) 5620 { 5621 ptr = tofree; 5622 len = (int)STRLEN(ptr); 5623 file_name = find_file_in_path(ptr, len, options & ~FNAME_MESS, 5624 TRUE, rel_fname); 5625 } 5626 } 5627 # endif 5628 if (file_name == NULL && (options & FNAME_MESS)) 5629 { 5630 c = ptr[len]; 5631 ptr[len] = NUL; 5632 EMSG2(_("E447: Can't find file \"%s\" in path"), ptr); 5633 ptr[len] = c; 5634 } 5635 5636 /* Repeat finding the file "count" times. This matters when it 5637 * appears several times in the path. */ 5638 while (file_name != NULL && --count > 0) 5639 { 5640 vim_free(file_name); 5641 file_name = find_file_in_path(ptr, len, options, FALSE, rel_fname); 5642 } 5643 } 5644 else 5645 file_name = vim_strnsave(ptr, len); 5646 5647 # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) 5648 vim_free(tofree); 5649 # endif 5650 5651 return file_name; 5652 } 5653 #endif /* FEAT_SEARCHPATH */ 5654 5655 /* 5656 * Check if the "://" of a URL is at the pointer, return URL_SLASH. 5657 * Also check for ":\\", which MS Internet Explorer accepts, return 5658 * URL_BACKSLASH. 5659 */ 5660 static int 5661 path_is_url(p) 5662 char_u *p; 5663 { 5664 if (STRNCMP(p, "://", (size_t)3) == 0) 5665 return URL_SLASH; 5666 else if (STRNCMP(p, ":\\\\", (size_t)3) == 0) 5667 return URL_BACKSLASH; 5668 return 0; 5669 } 5670 5671 /* 5672 * Check if "fname" starts with "name://". Return URL_SLASH if it does. 5673 * Return URL_BACKSLASH for "name:\\". 5674 * Return zero otherwise. 5675 */ 5676 int 5677 path_with_url(fname) 5678 char_u *fname; 5679 { 5680 char_u *p; 5681 5682 for (p = fname; isalpha(*p); ++p) 5683 ; 5684 return path_is_url(p); 5685 } 5686 5687 /* 5688 * Return TRUE if "name" is a full (absolute) path name or URL. 5689 */ 5690 int 5691 vim_isAbsName(name) 5692 char_u *name; 5693 { 5694 return (path_with_url(name) != 0 || mch_isFullName(name)); 5695 } 5696 5697 /* 5698 * Get absolute file name into buffer "buf[len]". 5699 * 5700 * return FAIL for failure, OK otherwise 5701 */ 5702 int 5703 vim_FullName(fname, buf, len, force) 5704 char_u *fname, *buf; 5705 int len; 5706 int force; /* force expansion even when already absolute */ 5707 { 5708 int retval = OK; 5709 int url; 5710 5711 *buf = NUL; 5712 if (fname == NULL) 5713 return FAIL; 5714 5715 url = path_with_url(fname); 5716 if (!url) 5717 retval = mch_FullName(fname, buf, len, force); 5718 if (url || retval == FAIL) 5719 { 5720 /* something failed; use the file name (truncate when too long) */ 5721 vim_strncpy(buf, fname, len - 1); 5722 } 5723 #if defined(MACOS_CLASSIC) || defined(OS2) || defined(MSDOS) || defined(MSWIN) 5724 slash_adjust(buf); 5725 #endif 5726 return retval; 5727 } 5728 5729 /* 5730 * Return the minimal number of rows that is needed on the screen to display 5731 * the current number of windows. 5732 */ 5733 int 5734 min_rows() 5735 { 5736 int total; 5737 #ifdef FEAT_WINDOWS 5738 tabpage_T *tp; 5739 int n; 5740 #endif 5741 5742 if (firstwin == NULL) /* not initialized yet */ 5743 return MIN_LINES; 5744 5745 #ifdef FEAT_WINDOWS 5746 total = 0; 5747 for (tp = first_tabpage; tp != NULL; tp = tp->tp_next) 5748 { 5749 n = frame_minheight(tp->tp_topframe, NULL); 5750 if (total < n) 5751 total = n; 5752 } 5753 total += tabline_height(); 5754 #else 5755 total = 1; /* at least one window should have a line! */ 5756 #endif 5757 total += 1; /* count the room for the command line */ 5758 return total; 5759 } 5760 5761 /* 5762 * Return TRUE if there is only one window (in the current tab page), not 5763 * counting a help or preview window, unless it is the current window. 5764 */ 5765 int 5766 only_one_window() 5767 { 5768 #ifdef FEAT_WINDOWS 5769 int count = 0; 5770 win_T *wp; 5771 5772 /* If there is another tab page there always is another window. */ 5773 if (first_tabpage->tp_next != NULL) 5774 return FALSE; 5775 5776 for (wp = firstwin; wp != NULL; wp = wp->w_next) 5777 if (!((wp->w_buffer->b_help && !curbuf->b_help) 5778 # ifdef FEAT_QUICKFIX 5779 || wp->w_p_pvw 5780 # endif 5781 ) || wp == curwin) 5782 ++count; 5783 return (count <= 1); 5784 #else 5785 return TRUE; 5786 #endif 5787 } 5788 5789 #if defined(FEAT_WINDOWS) || defined(FEAT_AUTOCMD) || defined(PROTO) 5790 /* 5791 * Correct the cursor line number in other windows. Used after changing the 5792 * current buffer, and before applying autocommands. 5793 * When "do_curwin" is TRUE, also check current window. 5794 */ 5795 void 5796 check_lnums(do_curwin) 5797 int do_curwin; 5798 { 5799 win_T *wp; 5800 5801 #ifdef FEAT_WINDOWS 5802 tabpage_T *tp; 5803 5804 FOR_ALL_TAB_WINDOWS(tp, wp) 5805 if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) 5806 #else 5807 wp = curwin; 5808 if (do_curwin) 5809 #endif 5810 { 5811 if (wp->w_cursor.lnum > curbuf->b_ml.ml_line_count) 5812 wp->w_cursor.lnum = curbuf->b_ml.ml_line_count; 5813 if (wp->w_topline > curbuf->b_ml.ml_line_count) 5814 wp->w_topline = curbuf->b_ml.ml_line_count; 5815 } 5816 } 5817 #endif 5818 5819 #if defined(FEAT_WINDOWS) || defined(PROTO) 5820 5821 /* 5822 * A snapshot of the window sizes, to restore them after closing the help 5823 * window. 5824 * Only these fields are used: 5825 * fr_layout 5826 * fr_width 5827 * fr_height 5828 * fr_next 5829 * fr_child 5830 * fr_win (only valid for the old curwin, NULL otherwise) 5831 */ 5832 5833 /* 5834 * Create a snapshot of the current frame sizes. 5835 */ 5836 static void 5837 make_snapshot() 5838 { 5839 clear_snapshot(curtab); 5840 make_snapshot_rec(topframe, &curtab->tp_snapshot); 5841 } 5842 5843 static void 5844 make_snapshot_rec(fr, frp) 5845 frame_T *fr; 5846 frame_T **frp; 5847 { 5848 *frp = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); 5849 if (*frp == NULL) 5850 return; 5851 (*frp)->fr_layout = fr->fr_layout; 5852 # ifdef FEAT_VERTSPLIT 5853 (*frp)->fr_width = fr->fr_width; 5854 # endif 5855 (*frp)->fr_height = fr->fr_height; 5856 if (fr->fr_next != NULL) 5857 make_snapshot_rec(fr->fr_next, &((*frp)->fr_next)); 5858 if (fr->fr_child != NULL) 5859 make_snapshot_rec(fr->fr_child, &((*frp)->fr_child)); 5860 if (fr->fr_layout == FR_LEAF && fr->fr_win == curwin) 5861 (*frp)->fr_win = curwin; 5862 } 5863 5864 /* 5865 * Remove any existing snapshot. 5866 */ 5867 static void 5868 clear_snapshot(tp) 5869 tabpage_T *tp; 5870 { 5871 clear_snapshot_rec(tp->tp_snapshot); 5872 tp->tp_snapshot = NULL; 5873 } 5874 5875 static void 5876 clear_snapshot_rec(fr) 5877 frame_T *fr; 5878 { 5879 if (fr != NULL) 5880 { 5881 clear_snapshot_rec(fr->fr_next); 5882 clear_snapshot_rec(fr->fr_child); 5883 vim_free(fr); 5884 } 5885 } 5886 5887 /* 5888 * Restore a previously created snapshot, if there is any. 5889 * This is only done if the screen size didn't change and the window layout is 5890 * still the same. 5891 */ 5892 static void 5893 restore_snapshot(close_curwin) 5894 int close_curwin; /* closing current window */ 5895 { 5896 win_T *wp; 5897 5898 if (curtab->tp_snapshot != NULL 5899 # ifdef FEAT_VERTSPLIT 5900 && curtab->tp_snapshot->fr_width == topframe->fr_width 5901 # endif 5902 && curtab->tp_snapshot->fr_height == topframe->fr_height 5903 && check_snapshot_rec(curtab->tp_snapshot, topframe) == OK) 5904 { 5905 wp = restore_snapshot_rec(curtab->tp_snapshot, topframe); 5906 win_comp_pos(); 5907 if (wp != NULL && close_curwin) 5908 win_goto(wp); 5909 redraw_all_later(CLEAR); 5910 } 5911 clear_snapshot(curtab); 5912 } 5913 5914 /* 5915 * Check if frames "sn" and "fr" have the same layout, same following frames 5916 * and same children. 5917 */ 5918 static int 5919 check_snapshot_rec(sn, fr) 5920 frame_T *sn; 5921 frame_T *fr; 5922 { 5923 if (sn->fr_layout != fr->fr_layout 5924 || (sn->fr_next == NULL) != (fr->fr_next == NULL) 5925 || (sn->fr_child == NULL) != (fr->fr_child == NULL) 5926 || (sn->fr_next != NULL 5927 && check_snapshot_rec(sn->fr_next, fr->fr_next) == FAIL) 5928 || (sn->fr_child != NULL 5929 && check_snapshot_rec(sn->fr_child, fr->fr_child) == FAIL)) 5930 return FAIL; 5931 return OK; 5932 } 5933 5934 /* 5935 * Copy the size of snapshot frame "sn" to frame "fr". Do the same for all 5936 * following frames and children. 5937 * Returns a pointer to the old current window, or NULL. 5938 */ 5939 static win_T * 5940 restore_snapshot_rec(sn, fr) 5941 frame_T *sn; 5942 frame_T *fr; 5943 { 5944 win_T *wp = NULL; 5945 win_T *wp2; 5946 5947 fr->fr_height = sn->fr_height; 5948 # ifdef FEAT_VERTSPLIT 5949 fr->fr_width = sn->fr_width; 5950 # endif 5951 if (fr->fr_layout == FR_LEAF) 5952 { 5953 frame_new_height(fr, fr->fr_height, FALSE, FALSE); 5954 # ifdef FEAT_VERTSPLIT 5955 frame_new_width(fr, fr->fr_width, FALSE, FALSE); 5956 # endif 5957 wp = sn->fr_win; 5958 } 5959 if (sn->fr_next != NULL) 5960 { 5961 wp2 = restore_snapshot_rec(sn->fr_next, fr->fr_next); 5962 if (wp2 != NULL) 5963 wp = wp2; 5964 } 5965 if (sn->fr_child != NULL) 5966 { 5967 wp2 = restore_snapshot_rec(sn->fr_child, fr->fr_child); 5968 if (wp2 != NULL) 5969 wp = wp2; 5970 } 5971 return wp; 5972 } 5973 5974 #endif 5975 5976 #if (defined(FEAT_GUI) && defined(FEAT_VERTSPLIT)) || defined(PROTO) 5977 /* 5978 * Return TRUE if there is any vertically split window. 5979 */ 5980 int 5981 win_hasvertsplit() 5982 { 5983 frame_T *fr; 5984 5985 if (topframe->fr_layout == FR_ROW) 5986 return TRUE; 5987 5988 if (topframe->fr_layout == FR_COL) 5989 for (fr = topframe->fr_child; fr != NULL; fr = fr->fr_next) 5990 if (fr->fr_layout == FR_ROW) 5991 return TRUE; 5992 5993 return FALSE; 5994 } 5995 #endif 5996