/* vi:set ts=8 sts=4 sw=4: * * VIM - Vi IMproved by Bram Moolenaar * * Do ":help uganda" in Vim to read a list of people who contributed. * Do ":help credits" in Vim to see a list of people who contributed. * See README.txt for an overview of the Vim source code. */ #include "vim.h" #ifdef HAVE_FCNTL_H # include /* for chdir() */ #endif static int path_is_url __ARGS((char_u *p)); #if defined(FEAT_WINDOWS) || defined(PROTO) static int win_split_ins __ARGS((int size, int flags, win_T *newwin, int dir)); static int win_comp_pos __ARGS((void)); static void frame_comp_pos __ARGS((frame_T *topfrp, int *row, int *col)); static void frame_setheight __ARGS((frame_T *curfrp, int height)); #ifdef FEAT_VERTSPLIT static void frame_setwidth __ARGS((frame_T *curfrp, int width)); #endif static void win_exchange __ARGS((long)); static void win_rotate __ARGS((int, int)); static void win_totop __ARGS((int size, int flags)); 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)); static win_T *winframe_remove __ARGS((win_T *win, int *dirp)); static frame_T *win_altframe __ARGS((win_T *win)); static win_T *frame2win __ARGS((frame_T *frp)); static int frame_has_win __ARGS((frame_T *frp, win_T *wp)); static void frame_new_height __ARGS((frame_T *topfrp, int height, int topfirst, int wfh)); static int frame_fixed_height __ARGS((frame_T *frp)); #ifdef FEAT_VERTSPLIT static void frame_add_statusline __ARGS((frame_T *frp)); static void frame_new_width __ARGS((frame_T *topfrp, int width, int leftfirst)); static void frame_add_vsep __ARGS((frame_T *frp)); static int frame_minwidth __ARGS((frame_T *topfrp, win_T *next_curwin)); static void frame_fix_width __ARGS((win_T *wp)); #endif static void frame_fix_height __ARGS((win_T *wp)); static int frame_minheight __ARGS((frame_T *topfrp, win_T *next_curwin)); static void win_enter_ext __ARGS((win_T *wp, int undo_sync, int no_curwin)); static void win_free __ARGS((win_T *wp)); static void win_append __ARGS((win_T *, win_T *)); static void win_remove __ARGS((win_T *)); static void frame_append __ARGS((frame_T *after, frame_T *frp)); static void frame_insert __ARGS((frame_T *before, frame_T *frp)); static void frame_remove __ARGS((frame_T *frp)); #ifdef FEAT_VERTSPLIT static void win_new_width __ARGS((win_T *wp, int width)); static int win_minheight __ARGS((win_T *wp)); static void win_goto_ver __ARGS((int up, long count)); static void win_goto_hor __ARGS((int left, long count)); #endif static void frame_add_height __ARGS((frame_T *frp, int n)); static void last_status_rec __ARGS((frame_T *fr, int statusline)); static void make_snapshot __ARGS((void)); static void make_snapshot_rec __ARGS((frame_T *fr, frame_T **frp)); static void clear_snapshot __ARGS((void)); static void clear_snapshot_rec __ARGS((frame_T *fr)); static void restore_snapshot __ARGS((int close_curwin)); static int check_snapshot_rec __ARGS((frame_T *sn, frame_T *fr)); static win_T *restore_snapshot_rec __ARGS((frame_T *sn, frame_T *fr)); #endif /* FEAT_WINDOWS */ static win_T *win_alloc __ARGS((win_T *after)); static void win_new_height __ARGS((win_T *, int)); #define URL_SLASH 1 /* path_is_url() has found "://" */ #define URL_BACKSLASH 2 /* path_is_url() has found ":\\" */ #define NOWIN (win_T *)-1 /* non-exisiting window */ #ifdef FEAT_WINDOWS static long p_ch_used = 1L; /* value of 'cmdheight' when frame size was set */ #endif #if defined(FEAT_WINDOWS) || defined(PROTO) /* * all CTRL-W window commands are handled here, called from normal_cmd(). */ void do_window(nchar, Prenum, xchar) int nchar; long Prenum; int xchar; /* extra char from ":wincmd gx" or NUL */ { long Prenum1; win_T *wp; #if defined(FEAT_SEARCHPATH) || defined(FEAT_FIND_ID) char_u *ptr; #endif #ifdef FEAT_FIND_ID int type = FIND_DEFINE; int len; #endif char_u cbuf[40]; if (Prenum == 0) Prenum1 = 1; else Prenum1 = Prenum; #ifdef FEAT_CMDWIN # define CHECK_CMDWIN if (cmdwin_type != 0) { EMSG(_(e_cmdwin)); break; } #else # define CHECK_CMDWIN #endif switch (nchar) { /* split current window in two parts, horizontally */ case 'S': case Ctrl_S: case 's': CHECK_CMDWIN #ifdef FEAT_VISUAL reset_VIsual_and_resel(); /* stop Visual mode */ #endif #ifdef FEAT_GUI need_mouse_correct = TRUE; #endif win_split((int)Prenum, 0); break; #ifdef FEAT_VERTSPLIT /* split current window in two parts, vertically */ case Ctrl_V: case 'v': CHECK_CMDWIN #ifdef FEAT_VISUAL reset_VIsual_and_resel(); /* stop Visual mode */ #endif #ifdef FEAT_GUI need_mouse_correct = TRUE; #endif win_split((int)Prenum, WSP_VERT); break; #endif /* split current window and edit alternate file */ case Ctrl_HAT: case '^': CHECK_CMDWIN #ifdef FEAT_VISUAL reset_VIsual_and_resel(); /* stop Visual mode */ #endif STRCPY(cbuf, "split #"); if (Prenum) sprintf((char *)cbuf + 7, "%ld", Prenum); do_cmdline_cmd(cbuf); break; /* open new window */ case Ctrl_N: case 'n': CHECK_CMDWIN #ifdef FEAT_VISUAL reset_VIsual_and_resel(); /* stop Visual mode */ #endif if (Prenum) sprintf((char *)cbuf, "%ld", Prenum); /* window height */ else cbuf[0] = NUL; STRCAT(cbuf, "new"); do_cmdline_cmd(cbuf); break; /* quit current window */ case Ctrl_Q: case 'q': #ifdef FEAT_VISUAL reset_VIsual_and_resel(); /* stop Visual mode */ #endif do_cmdline_cmd((char_u *)"quit"); break; /* close current window */ case Ctrl_C: case 'c': #ifdef FEAT_VISUAL reset_VIsual_and_resel(); /* stop Visual mode */ #endif do_cmdline_cmd((char_u *)"close"); break; #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX) /* close preview window */ case Ctrl_Z: case 'z': CHECK_CMDWIN #ifdef FEAT_VISUAL reset_VIsual_and_resel(); /* stop Visual mode */ #endif do_cmdline_cmd((char_u *)"pclose"); break; /* cursor to preview window */ case 'P': for (wp = firstwin; wp != NULL; wp = wp->w_next) if (wp->w_p_pvw) break; if (wp == NULL) EMSG(_("E441: There is no preview window")); else win_goto(wp); break; #endif /* close all but current window */ case Ctrl_O: case 'o': CHECK_CMDWIN #ifdef FEAT_VISUAL reset_VIsual_and_resel(); /* stop Visual mode */ #endif do_cmdline_cmd((char_u *)"only"); break; /* cursor to next window with wrap around */ case Ctrl_W: case 'w': /* cursor to previous window with wrap around */ case 'W': CHECK_CMDWIN if (lastwin == firstwin && Prenum != 1) /* just one window */ beep_flush(); else { if (Prenum) /* go to specified window */ { for (wp = firstwin; --Prenum > 0; ) { if (wp->w_next == NULL) break; else wp = wp->w_next; } } else { if (nchar == 'W') /* go to previous window */ { wp = curwin->w_prev; if (wp == NULL) wp = lastwin; /* wrap around */ } else /* go to next window */ { wp = curwin->w_next; if (wp == NULL) wp = firstwin; /* wrap around */ } } win_goto(wp); } break; /* cursor to window below */ case 'j': case K_DOWN: case Ctrl_J: CHECK_CMDWIN #ifdef FEAT_VERTSPLIT win_goto_ver(FALSE, Prenum1); #else for (wp = curwin; wp->w_next != NULL && Prenum1-- > 0; wp = wp->w_next) ; win_goto(wp); #endif break; /* cursor to window above */ case 'k': case K_UP: case Ctrl_K: CHECK_CMDWIN #ifdef FEAT_VERTSPLIT win_goto_ver(TRUE, Prenum1); #else for (wp = curwin; wp->w_prev != NULL && Prenum1-- > 0; wp = wp->w_prev) ; win_goto(wp); #endif break; #ifdef FEAT_VERTSPLIT /* cursor to left window */ case 'h': case K_LEFT: case Ctrl_H: case K_BS: CHECK_CMDWIN win_goto_hor(TRUE, Prenum1); break; /* cursor to right window */ case 'l': case K_RIGHT: case Ctrl_L: CHECK_CMDWIN win_goto_hor(FALSE, Prenum1); break; #endif /* cursor to top-left window */ case 't': case Ctrl_T: win_goto(firstwin); break; /* cursor to bottom-right window */ case 'b': case Ctrl_B: win_goto(lastwin); break; /* cursor to last accessed (previous) window */ case 'p': case Ctrl_P: if (prevwin == NULL) beep_flush(); else win_goto(prevwin); break; /* exchange current and next window */ case 'x': case Ctrl_X: CHECK_CMDWIN win_exchange(Prenum); break; /* rotate windows downwards */ case Ctrl_R: case 'r': CHECK_CMDWIN #ifdef FEAT_VISUAL reset_VIsual_and_resel(); /* stop Visual mode */ #endif win_rotate(FALSE, (int)Prenum1); /* downwards */ break; /* rotate windows upwards */ case 'R': CHECK_CMDWIN #ifdef FEAT_VISUAL reset_VIsual_and_resel(); /* stop Visual mode */ #endif win_rotate(TRUE, (int)Prenum1); /* upwards */ break; /* move window to the very top/bottom/left/right */ case 'K': case 'J': #ifdef FEAT_VERTSPLIT case 'H': case 'L': #endif CHECK_CMDWIN win_totop((int)Prenum, ((nchar == 'H' || nchar == 'L') ? WSP_VERT : 0) | ((nchar == 'H' || nchar == 'K') ? WSP_TOP : WSP_BOT)); break; /* make all windows the same height */ case '=': #ifdef FEAT_GUI need_mouse_correct = TRUE; #endif win_equal(NULL, FALSE, 'b'); break; /* increase current window height */ case '+': #ifdef FEAT_GUI need_mouse_correct = TRUE; #endif win_setheight(curwin->w_height + (int)Prenum1); break; /* decrease current window height */ case '-': #ifdef FEAT_GUI need_mouse_correct = TRUE; #endif win_setheight(curwin->w_height - (int)Prenum1); break; /* set current window height */ case Ctrl__: case '_': #ifdef FEAT_GUI need_mouse_correct = TRUE; #endif win_setheight(Prenum ? (int)Prenum : 9999); break; #ifdef FEAT_VERTSPLIT /* increase current window width */ case '>': #ifdef FEAT_GUI need_mouse_correct = TRUE; #endif win_setwidth(curwin->w_width + (int)Prenum1); break; /* decrease current window width */ case '<': #ifdef FEAT_GUI need_mouse_correct = TRUE; #endif win_setwidth(curwin->w_width - (int)Prenum1); break; /* set current window width */ case '|': #ifdef FEAT_GUI need_mouse_correct = TRUE; #endif win_setwidth(Prenum != 0 ? (int)Prenum : 9999); break; #endif /* jump to tag and split window if tag exists (in preview window) */ #if defined(FEAT_QUICKFIX) case '}': CHECK_CMDWIN if (Prenum) g_do_tagpreview = Prenum; else g_do_tagpreview = p_pvh; /*FALLTHROUGH*/ #endif case ']': case Ctrl_RSB: CHECK_CMDWIN #ifdef FEAT_VISUAL reset_VIsual_and_resel(); /* stop Visual mode */ #endif if (Prenum) postponed_split = Prenum; else postponed_split = -1; /* Execute the command right here, required when * "wincmd ]" was used in a function. */ do_nv_ident(Ctrl_RSB, NUL); break; #ifdef FEAT_SEARCHPATH /* edit file name under cursor in a new window */ case 'f': case Ctrl_F: CHECK_CMDWIN #ifdef FEAT_VISUAL reset_VIsual_and_resel(); /* stop Visual mode */ #endif ptr = file_name_at_cursor(FNAME_MESS|FNAME_HYP|FNAME_EXP, Prenum1); if (ptr != NULL) { #ifdef FEAT_GUI need_mouse_correct = TRUE; #endif setpcmark(); if (win_split(0, 0) == OK) { # ifdef FEAT_SCROLLBIND curwin->w_p_scb = FALSE; # endif (void)do_ecmd(0, ptr, NULL, NULL, ECMD_LASTL, ECMD_HIDE); } vim_free(ptr); } break; #endif #ifdef FEAT_FIND_ID /* Go to the first occurence of the identifier under cursor along path in a * new window -- webb */ case 'i': /* Go to any match */ case Ctrl_I: type = FIND_ANY; /* FALLTHROUGH */ case 'd': /* Go to definition, using 'define' */ case Ctrl_D: CHECK_CMDWIN if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0) break; find_pattern_in_path(ptr, 0, len, TRUE, Prenum == 0 ? TRUE : FALSE, type, Prenum1, ACTION_SPLIT, (linenr_T)1, (linenr_T)MAXLNUM); curwin->w_set_curswant = TRUE; break; #endif /* CTRL-W g extended commands */ case 'g': case Ctrl_G: CHECK_CMDWIN #ifdef USE_ON_FLY_SCROLL dont_scroll = TRUE; /* disallow scrolling here */ #endif ++no_mapping; ++allow_keys; /* no mapping for xchar, but allow key codes */ if (xchar == NUL) xchar = safe_vgetc(); #ifdef FEAT_LANGMAP LANGMAP_ADJUST(xchar, TRUE); #endif --no_mapping; --allow_keys; #ifdef FEAT_CMDL_INFO (void)add_to_showcmd(xchar); #endif switch (xchar) { #if defined(FEAT_QUICKFIX) case '}': xchar = Ctrl_RSB; if (Prenum) g_do_tagpreview = Prenum; else g_do_tagpreview = p_pvh; /*FALLTHROUGH*/ #endif case ']': case Ctrl_RSB: #ifdef FEAT_VISUAL reset_VIsual_and_resel(); /* stop Visual mode */ #endif if (Prenum) postponed_split = Prenum; else postponed_split = -1; /* Execute the command right here, required when * "wincmd g}" was used in a function. */ do_nv_ident('g', xchar); break; default: beep_flush(); break; } break; default: beep_flush(); break; } } /* * split the current window, implements CTRL-W s and :split * * "size" is the height or width for the new window, 0 to use half of current * height or width. * * "flags": * WSP_ROOM: require enough room for new window * WSP_VERT: vertical split. * WSP_TOP: open window at the top-left of the shell (help window). * WSP_BOT: open window at the bottom-right of the shell (quickfix window). * WSP_HELP: creating the help window, keep layout snapshot * * return FAIL for failure, OK otherwise */ int win_split(size, flags) int size; int flags; { /* Add flags from ":vertical", ":topleft" and ":botright". */ flags |= cmdmod.split; if ((flags & WSP_TOP) && (flags & WSP_BOT)) { EMSG(_("E442: Can't split topleft and botright at the same time")); return FAIL; } /* When creating the help window make a snapshot of the window layout. * Otherwise clear the snapshot, it's now invalid. */ if (flags & WSP_HELP) make_snapshot(); else clear_snapshot(); return win_split_ins(size, flags, NULL, 0); } /* * When "newwin" is NULL: split a window in two. * When "newwin" is not NULL: insert this window at the far * top/left/right/bottom. * return FAIL for failure, OK otherwise */ static int win_split_ins(size, flags, newwin, dir) int size; int flags; win_T *newwin; int dir; { win_T *wp = newwin; win_T *oldwin; int new_size = size; int i; int need_status = 0; int do_equal = FALSE; int needed; int available; int oldwin_height = 0; int layout; frame_T *frp, *curfrp; int before; if (flags & WSP_TOP) oldwin = firstwin; else if (flags & WSP_BOT) oldwin = lastwin; else oldwin = curwin; /* add a status line when p_ls == 1 and splitting the first window */ if (lastwin == firstwin && p_ls == 1 && oldwin->w_status_height == 0) { if (oldwin->w_height <= p_wmh && newwin == NULL) { EMSG(_(e_noroom)); return FAIL; } need_status = STATUS_HEIGHT; } #ifdef FEAT_VERTSPLIT if (flags & WSP_VERT) { layout = FR_ROW; do_equal = (p_ea && new_size == 0 && *p_ead != 'v'); /* * Check if we are able to split the current window and compute its * width. */ needed = p_wmw + 1; if (flags & WSP_ROOM) needed += p_wiw - p_wmw; if (p_ea || (flags & (WSP_BOT | WSP_TOP))) { available = topframe->fr_width; needed += frame_minwidth(topframe, NULL); } else available = oldwin->w_width; if (available < needed && newwin == NULL) { EMSG(_(e_noroom)); return FAIL; } if (new_size == 0) new_size = oldwin->w_width / 2; if (new_size > oldwin->w_width - p_wmw - 1) new_size = oldwin->w_width - p_wmw - 1; if (new_size < p_wmw) new_size = p_wmw; /* if it doesn't fit in the current window, need win_equal() */ if (oldwin->w_width - new_size - 1 < p_wmw) do_equal = TRUE; } else #endif { layout = FR_COL; do_equal = (p_ea && new_size == 0 #ifdef FEAT_VERTSPLIT && *p_ead != 'h' #endif ); /* * Check if we are able to split the current window and compute its * height. */ needed = p_wmh + STATUS_HEIGHT + need_status; if (flags & WSP_ROOM) needed += p_wh - p_wmh; if (p_ea || (flags & (WSP_BOT | WSP_TOP))) { available = topframe->fr_height; needed += frame_minheight(topframe, NULL); } else { available = oldwin->w_height; needed += p_wmh; } if (available < needed && newwin == NULL) { EMSG(_(e_noroom)); return FAIL; } oldwin_height = oldwin->w_height; if (need_status) { oldwin->w_status_height = STATUS_HEIGHT; oldwin_height -= STATUS_HEIGHT; } if (new_size == 0) new_size = oldwin_height / 2; if (new_size > oldwin_height - p_wmh - STATUS_HEIGHT) new_size = oldwin_height - p_wmh - STATUS_HEIGHT; if (new_size < p_wmh) new_size = p_wmh; /* if it doesn't fit in the current window, need win_equal() */ if (oldwin_height - new_size - STATUS_HEIGHT < p_wmh) do_equal = TRUE; /* We don't like to take lines for the new window from a * 'winfixheight' window. Take them from a window above or below * instead, if possible. */ if (oldwin->w_p_wfh) { win_setheight_win(oldwin->w_height + new_size + STATUS_HEIGHT, oldwin); oldwin_height = oldwin->w_height; if (need_status) oldwin_height -= STATUS_HEIGHT; } } /* * allocate new window structure and link it in the window list */ if ((flags & WSP_TOP) == 0 && ((flags & WSP_BOT) || (flags & WSP_BELOW) || (!(flags & WSP_ABOVE) && ( #ifdef FEAT_VERTSPLIT (flags & WSP_VERT) ? p_spr : #endif p_sb)))) { /* new window below/right of current one */ if (newwin == NULL) wp = win_alloc(oldwin); else win_append(oldwin, wp); } else { if (newwin == NULL) wp = win_alloc(oldwin->w_prev); else win_append(oldwin->w_prev, wp); } if (newwin == NULL) { if (wp == NULL) return FAIL; /* * make the contents of the new window the same as the current one */ wp->w_buffer = curbuf; curbuf->b_nwindows++; wp->w_cursor = curwin->w_cursor; wp->w_valid = 0; wp->w_curswant = curwin->w_curswant; wp->w_set_curswant = curwin->w_set_curswant; wp->w_topline = curwin->w_topline; #ifdef FEAT_DIFF wp->w_topfill = curwin->w_topfill; #endif wp->w_leftcol = curwin->w_leftcol; wp->w_pcmark = curwin->w_pcmark; wp->w_prev_pcmark = curwin->w_prev_pcmark; wp->w_alt_fnum = curwin->w_alt_fnum; wp->w_fraction = curwin->w_fraction; wp->w_prev_fraction_row = curwin->w_prev_fraction_row; #ifdef FEAT_JUMPLIST copy_jumplist(curwin, wp); #endif if (curwin->w_localdir != NULL) wp->w_localdir = vim_strsave(curwin->w_localdir); /* Use the same argument list. */ wp->w_alist = curwin->w_alist; ++wp->w_alist->al_refcount; wp->w_arg_idx = curwin->w_arg_idx; /* * copy tagstack and options from existing window */ for (i = 0; i < curwin->w_tagstacklen; i++) { wp->w_tagstack[i] = curwin->w_tagstack[i]; if (wp->w_tagstack[i].tagname != NULL) wp->w_tagstack[i].tagname = vim_strsave(wp->w_tagstack[i].tagname); } wp->w_tagstackidx = curwin->w_tagstackidx; wp->w_tagstacklen = curwin->w_tagstacklen; win_copy_options(curwin, wp); #ifdef FEAT_FOLDING copyFoldingState(curwin, wp); #endif } /* * Reorganise the tree of frames to insert the new window. */ if (flags & (WSP_TOP | WSP_BOT)) { #ifdef FEAT_VERTSPLIT if ((topframe->fr_layout == FR_COL && (flags & WSP_VERT) == 0) || (topframe->fr_layout == FR_ROW && (flags & WSP_VERT) != 0)) #else if (topframe->fr_layout == FR_COL) #endif { curfrp = topframe->fr_child; if (flags & WSP_BOT) while (curfrp->fr_next != NULL) curfrp = curfrp->fr_next; } else curfrp = topframe; before = (flags & WSP_TOP); } else { curfrp = oldwin->w_frame; if (flags & WSP_BELOW) before = FALSE; else if (flags & WSP_ABOVE) before = TRUE; else #ifdef FEAT_VERTSPLIT if (flags & WSP_VERT) before = !p_spr; else #endif before = !p_sb; } if (curfrp->fr_parent == NULL || curfrp->fr_parent->fr_layout != layout) { /* Need to create a new frame in the tree to make a branch. */ frp = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); *frp = *curfrp; curfrp->fr_layout = layout; frp->fr_parent = curfrp; frp->fr_next = NULL; frp->fr_prev = NULL; curfrp->fr_child = frp; curfrp->fr_win = NULL; curfrp = frp; if (frp->fr_win != NULL) oldwin->w_frame = frp; else for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) frp->fr_parent = curfrp; } if (newwin == NULL) { /* Create a frame for the new window. */ frp = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); frp->fr_layout = FR_LEAF; frp->fr_win = wp; wp->w_frame = frp; } else frp = newwin->w_frame; frp->fr_parent = curfrp->fr_parent; /* Insert the new frame at the right place in the frame list. */ if (before) frame_insert(curfrp, frp); else frame_append(curfrp, frp); #ifdef FEAT_VERTSPLIT if (flags & WSP_VERT) { wp->w_p_scr = curwin->w_p_scr; if (need_status) { --oldwin->w_height; oldwin->w_status_height = need_status; } if (flags & (WSP_TOP | WSP_BOT)) { /* set height and row of new window to full height */ wp->w_winrow = 0; wp->w_height = curfrp->fr_height - (p_ls > 0); wp->w_status_height = (p_ls > 0); } else { /* height and row of new window is same as current window */ wp->w_winrow = oldwin->w_winrow; wp->w_height = oldwin->w_height; wp->w_status_height = oldwin->w_status_height; } frp->fr_height = curfrp->fr_height; /* "new_size" of the current window goes to the new window, use * one column for the vertical separator */ wp->w_width = new_size; if (before) wp->w_vsep_width = 1; else { wp->w_vsep_width = oldwin->w_vsep_width; oldwin->w_vsep_width = 1; } if (flags & (WSP_TOP | WSP_BOT)) { if (flags & WSP_BOT) frame_add_vsep(curfrp); /* Set width of neighbor frame */ frame_new_width(curfrp, curfrp->fr_width - (new_size + ((flags & WSP_TOP) != 0)), flags & WSP_TOP); } else oldwin->w_width -= new_size + 1; if (before) /* new window left of current one */ { wp->w_wincol = oldwin->w_wincol; oldwin->w_wincol += new_size + 1; } else /* new window right of current one */ wp->w_wincol = oldwin->w_wincol + oldwin->w_width + 1; frame_fix_width(oldwin); frame_fix_width(wp); } else #endif { /* width and column of new window is same as current window */ #ifdef FEAT_VERTSPLIT if (flags & (WSP_TOP | WSP_BOT)) { wp->w_wincol = 0; wp->w_width = Columns; wp->w_vsep_width = 0; } else { wp->w_wincol = oldwin->w_wincol; wp->w_width = oldwin->w_width; wp->w_vsep_width = oldwin->w_vsep_width; } frp->fr_width = curfrp->fr_width; #endif /* "new_size" of the current window goes to the new window, use * one row for the status line */ win_new_height(wp, new_size); if (flags & (WSP_TOP | WSP_BOT)) frame_new_height(curfrp, curfrp->fr_height - (new_size + STATUS_HEIGHT), flags & WSP_TOP, FALSE); else win_new_height(oldwin, oldwin_height - (new_size + STATUS_HEIGHT)); if (before) /* new window above current one */ { wp->w_winrow = oldwin->w_winrow; wp->w_status_height = STATUS_HEIGHT; oldwin->w_winrow += wp->w_height + STATUS_HEIGHT; } else /* new window below current one */ { wp->w_winrow = oldwin->w_winrow + oldwin->w_height + STATUS_HEIGHT; wp->w_status_height = oldwin->w_status_height; oldwin->w_status_height = STATUS_HEIGHT; } #ifdef FEAT_VERTSPLIT if (flags & WSP_BOT) frame_add_statusline(curfrp); #endif frame_fix_height(wp); frame_fix_height(oldwin); } if (flags & (WSP_TOP | WSP_BOT)) (void)win_comp_pos(); /* * Both windows need redrawing */ redraw_win_later(wp, NOT_VALID); wp->w_redr_status = TRUE; redraw_win_later(oldwin, NOT_VALID); oldwin->w_redr_status = TRUE; if (need_status) { msg_row = Rows - 1; msg_col = sc_col; msg_clr_eos_force(); /* Old command/ruler may still be there */ comp_col(); msg_row = Rows - 1; msg_col = 0; /* put position back at start of line */ } /* * make the new window the current window and redraw */ if (do_equal || dir != 0) win_equal(wp, TRUE, #ifdef FEAT_VERTSPLIT (flags & WSP_VERT) ? (dir == 'v' ? 'b' : 'h') : dir == 'h' ? 'b' : #endif 'v'); /* Don't change the window height/width to 'winheight' / 'winwidth' if a * size was given. */ #ifdef FEAT_VERTSPLIT if (flags & WSP_VERT) { i = p_wiw; if (size != 0) p_wiw = size; # ifdef FEAT_GUI /* When 'guioptions' includes 'L' or 'R' may have to add scrollbars. */ if (gui.in_use) gui_init_which_components(NULL); # endif } else #endif { i = p_wh; if (size != 0) p_wh = size; } win_enter(wp, FALSE); #ifdef FEAT_VERTSPLIT if (flags & WSP_VERT) p_wiw = i; else #endif p_wh = i; return OK; } #endif /* FEAT_WINDOWS */ #ifdef FEAT_VERTSPLIT /* * Return minimal height for window "wp" and windows east of it. * Takes into account the eastbound windws can be split, each of them * requireing p_wmh lines. Doesn't count status lines. */ static int win_minheight(wp) win_T *wp; { int minheight = p_wmh; int n; win_T *wp1, *wp2; wp1 = wp; for (;;) { wp1 = wp1->w_next; if (wp1 == NULL) break; n = p_wmh; wp2 = wp1; for (;;) { wp2 = wp2->w_next; if (wp2 == NULL) break; n += win_minheight(wp2); } if (n > minheight) minheight = n; } return minheight; } #endif #if defined(FEAT_WINDOWS) || defined(PROTO) /* * Check if "win" is a pointer to an existing window. */ int win_valid(win) win_T *win; { win_T *wp; if (win == NULL) return FALSE; for (wp = firstwin; wp != NULL; wp = wp->w_next) if (wp == win) return TRUE; return FALSE; } /* * Return the number of windows. */ int win_count() { win_T *wp; int count = 0; for (wp = firstwin; wp != NULL; wp = wp->w_next) ++count; return count; } /* * Make "count" windows on the screen. * Return actual number of windows on the screen. * Must be called when there is just one window, filling the whole screen * (excluding the command line). */ /*ARGSUSED*/ int make_windows(count, vertical) int count; int vertical; /* split windows vertically if TRUE */ { int maxcount; int todo; #ifdef FEAT_VERTSPLIT if (vertical) { /* Each windows needs at least 'winminwidth' lines and a separator * column. */ maxcount = (curwin->w_width + curwin->w_vsep_width - (p_wiw - p_wmw)) / (p_wmw + 1); } else #endif { /* Each window needs at least 'winminheight' lines and a status line. */ maxcount = (curwin->w_height + curwin->w_status_height - (p_wh - p_wmh)) / (p_wmh + STATUS_HEIGHT); } if (maxcount < 2) maxcount = 2; if (count > maxcount) count = maxcount; /* * add status line now, otherwise first window will be too big */ if (count > 1) last_status(TRUE); #ifdef FEAT_AUTOCMD /* * Don't execute autocommands while creating the windows. Must do that * when putting the buffers in the windows. */ ++autocmd_block; #endif /* todo is number of windows left to create */ for (todo = count - 1; todo > 0; --todo) #ifdef FEAT_VERTSPLIT if (vertical) { if (win_split(curwin->w_width - (curwin->w_width - todo) / (todo + 1) - 1, WSP_VERT | WSP_ABOVE) == FAIL) break; } else #endif { if (win_split(curwin->w_height - (curwin->w_height - todo * STATUS_HEIGHT) / (todo + 1) - STATUS_HEIGHT, WSP_ABOVE) == FAIL) break; } #ifdef FEAT_AUTOCMD --autocmd_block; #endif /* return actual number of windows */ return (count - todo); } /* * Exchange current and next window */ static void win_exchange(Prenum) long Prenum; { frame_T *frp; frame_T *frp2; win_T *wp; win_T *wp2; int temp; if (lastwin == firstwin) /* just one window */ { beep_flush(); return; } #ifdef FEAT_GUI need_mouse_correct = TRUE; #endif /* * find window to exchange with */ if (Prenum) { frp = curwin->w_frame->fr_parent->fr_child; while (frp != NULL && --Prenum > 0) frp = frp->fr_next; } else if (curwin->w_frame->fr_next != NULL) /* Swap with next */ frp = curwin->w_frame->fr_next; else /* Swap last window in row/col with previous */ frp = curwin->w_frame->fr_prev; /* We can only exchange a window with another window, not with a frame * containing windows. */ if (frp == NULL || frp->fr_win == NULL || frp->fr_win == curwin) return; wp = frp->fr_win; /* * 1. remove curwin from the list. Remember after which window it was in wp2 * 2. insert curwin before wp in the list * if wp != wp2 * 3. remove wp from the list * 4. insert wp after wp2 * 5. exchange the status line height and vsep width. */ wp2 = curwin->w_prev; frp2 = curwin->w_frame->fr_prev; if (wp->w_prev != curwin) { win_remove(curwin); frame_remove(curwin->w_frame); win_append(wp->w_prev, curwin); frame_insert(frp, curwin->w_frame); } if (wp != wp2) { win_remove(wp); frame_remove(wp->w_frame); win_append(wp2, wp); if (frp2 == NULL) frame_insert(wp->w_frame->fr_parent->fr_child, wp->w_frame); else frame_append(frp2, wp->w_frame); } temp = curwin->w_status_height; curwin->w_status_height = wp->w_status_height; wp->w_status_height = temp; #ifdef FEAT_VERTSPLIT temp = curwin->w_vsep_width; curwin->w_vsep_width = wp->w_vsep_width; wp->w_vsep_width = temp; /* If the windows are not in the same frame, exchange the sizes to avoid * messing up the window layout. Otherwise fix the frame sizes. */ if (curwin->w_frame->fr_parent != wp->w_frame->fr_parent) { temp = curwin->w_height; curwin->w_height = wp->w_height; wp->w_height = temp; temp = curwin->w_width; curwin->w_width = wp->w_width; wp->w_width = temp; } else { frame_fix_height(curwin); frame_fix_height(wp); frame_fix_width(curwin); frame_fix_width(wp); } #endif (void)win_comp_pos(); /* recompute window positions */ win_enter(wp, TRUE); redraw_later(CLEAR); } /* * rotate windows: if upwards TRUE the second window becomes the first one * if upwards FALSE the first window becomes the second one */ static void win_rotate(upwards, count) int upwards; int count; { win_T *wp1; win_T *wp2; frame_T *frp; int n; if (firstwin == lastwin) /* nothing to do */ { beep_flush(); return; } #ifdef FEAT_GUI need_mouse_correct = TRUE; #endif #ifdef FEAT_VERTSPLIT /* Check if all frames in this row/col have one window. */ for (frp = curwin->w_frame->fr_parent->fr_child; frp != NULL; frp = frp->fr_next) if (frp->fr_win == NULL) { EMSG(_("E443: Cannot rotate when another window is split")); return; } #endif while (count--) { if (upwards) /* first window becomes last window */ { /* remove first window/frame from the list */ frp = curwin->w_frame->fr_parent->fr_child; wp1 = frp->fr_win; win_remove(wp1); frame_remove(frp); /* find last frame and append removed window/frame after it */ for ( ; frp->fr_next != NULL; frp = frp->fr_next) ; win_append(frp->fr_win, wp1); frame_append(frp, wp1->w_frame); wp2 = frp->fr_win; /* previously last window */ } else /* last window becomes first window */ { /* find last window/frame in the list and remove it */ for (frp = curwin->w_frame; frp->fr_next != NULL; frp = frp->fr_next) ; wp1 = frp->fr_win; wp2 = wp1->w_prev; /* will become last window */ win_remove(wp1); frame_remove(frp); /* append the removed window/frame before the first in the list */ win_append(frp->fr_parent->fr_child->fr_win->w_prev, wp1); frame_insert(frp->fr_parent->fr_child, frp); } /* exchange status height and vsep width of old and new last window */ n = wp2->w_status_height; wp2->w_status_height = wp1->w_status_height; wp1->w_status_height = n; frame_fix_height(wp1); frame_fix_height(wp2); #ifdef FEAT_VERTSPLIT n = wp2->w_vsep_width; wp2->w_vsep_width = wp1->w_vsep_width; wp1->w_vsep_width = n; frame_fix_width(wp1); frame_fix_width(wp2); #endif /* recompute w_winrow and w_wincol for all windows */ (void)win_comp_pos(); } redraw_later(CLEAR); } /* * Move the current window to the very top/bottom/left/right of the screen. */ static void win_totop(size, flags) int size; int flags; { int dir; int height = curwin->w_height; if (lastwin == firstwin) { beep_flush(); return; } /* Remove the window and frame from the tree of frames. */ (void)winframe_remove(curwin, &dir); win_remove(curwin); last_status(FALSE); /* may need to remove last status line */ (void)win_comp_pos(); /* recompute window positions */ /* Split a window on the desired side and put the window there. */ (void)win_split_ins(size, flags, curwin, dir); if (!(flags & WSP_VERT)) { win_setheight(height); if (p_ea) win_equal(curwin, TRUE, 'v'); } #if defined(FEAT_GUI) && defined(FEAT_VERTSPLIT) /* When 'guioptions' includes 'L' or 'R' may have to remove or add * scrollbars. Have to update them anyway. */ if (gui.in_use) { out_flush(); gui_init_which_components(NULL); gui_update_scrollbars(TRUE); } need_mouse_correct = TRUE; #endif } /* * Move window "win1" to below/right of "win2" and make "win1" the current * window. Only works within the same frame! */ void win_move_after(win1, win2) win_T *win1, *win2; { int height; /* check if the arguments are reasonable */ if (win1 == win2) return; /* check if there is something to do */ if (win2->w_next != win1) { /* may need move the status line/vertical separator of the last window * */ if (win1 == lastwin) { height = win1->w_prev->w_status_height; win1->w_prev->w_status_height = win1->w_status_height; win1->w_status_height = height; #ifdef FEAT_VERTSPLIT win1->w_prev->w_vsep_width = 0; win1->w_vsep_width = 1; #endif } else if (win2 == lastwin) { height = win1->w_status_height; win1->w_status_height = win2->w_status_height; win2->w_status_height = height; #ifdef FEAT_VERTSPLIT win2->w_vsep_width = 1; win1->w_vsep_width = 0; #endif } win_remove(win1); frame_remove(win1->w_frame); win_append(win2, win1); frame_append(win2->w_frame, win1->w_frame); (void)win_comp_pos(); /* recompute w_winrow for all windows */ redraw_later(NOT_VALID); } win_enter(win1, FALSE); } /* * Make all windows the same height. * 'next_curwin' will soon be the current window, make sure it has enough * rows. */ void win_equal(next_curwin, current, dir) win_T *next_curwin; /* pointer to current window to be or NULL */ int current; /* do only frame with current window */ int dir; /* 'v' for vertically, 'h' for horizontally, 'b' for both, 0 for using p_ead */ { if (dir == 0) #ifdef FEAT_VERTSPLIT dir = *p_ead; #else dir = 'b'; #endif win_equal_rec(next_curwin == NULL ? curwin : next_curwin, current, topframe, dir, 0, 0, (int)Columns, topframe->fr_height); } /* * Set a frame to a new position and height, spreading the available room * equally over contained frames. * The window "next_curwin" (if not NULL) should at least get the size from * 'winheight' and 'winwidth' if possible. */ static void win_equal_rec(next_curwin, current, topfr, dir, col, row, width, height) win_T *next_curwin; /* pointer to current window to be or NULL */ int current; /* do only frame with current window */ frame_T *topfr; /* frame to set size off */ int dir; /* 'v', 'h' or 'b', see win_equal() */ int col; /* horizontal position for frame */ int row; /* vertical position for frame */ int width; /* new width of frame */ int height; /* new height of frame */ { int n, m; int extra_sep = 0; int wincount, totwincount = 0; frame_T *fr; int next_curwin_size = 0; int room = 0; int new_size; int has_next_curwin = 0; int hnc; if (topfr->fr_layout == FR_LEAF) { /* Set the width/height of this frame. * Redraw when size or position changes */ if (topfr->fr_height != height || topfr->fr_win->w_winrow != row #ifdef FEAT_VERTSPLIT || topfr->fr_width != width || topfr->fr_win->w_wincol != col #endif ) { topfr->fr_win->w_winrow = row; frame_new_height(topfr, height, FALSE, FALSE); #ifdef FEAT_VERTSPLIT topfr->fr_win->w_wincol = col; frame_new_width(topfr, width, FALSE); #endif redraw_all_later(CLEAR); } } #ifdef FEAT_VERTSPLIT else if (topfr->fr_layout == FR_ROW) { topfr->fr_width = width; topfr->fr_height = height; if (dir != 'v') /* equalize frame widths */ { /* Compute the maximum number of windows horizontally in this * frame. */ n = frame_minwidth(topfr, NOWIN); /* add one for the rightmost window, it doesn't have a separator */ if (col + width == Columns) extra_sep = 1; else extra_sep = 0; totwincount = (n + extra_sep) / (p_wmw + 1); /* Compute room available for windows other than "next_curwin" */ m = frame_minwidth(topfr, next_curwin); room = width - m; if (room < 0) { next_curwin_size = p_wiw + room; room = 0; } else if (n == m) /* doesn't contain curwin */ next_curwin_size = 0; else { next_curwin_size = (room + p_wiw + (totwincount - 1) * p_wmw + (totwincount - 1)) / totwincount; if (next_curwin_size > p_wiw) room -= next_curwin_size - p_wiw; else next_curwin_size = p_wiw; } if (n != m) --totwincount; /* don't count curwin */ } for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) { n = m = 0; wincount = 1; if (fr->fr_next == NULL) /* last frame gets all that remains (avoid roundoff error) */ new_size = width; else if (dir == 'v') new_size = fr->fr_width; else { /* Compute the maximum number of windows horiz. in "fr". */ n = frame_minwidth(fr, NOWIN); wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) / (p_wmw + 1); m = frame_minwidth(fr, next_curwin); if (n != m) /* don't count next_curwin */ --wincount; new_size = (wincount * room + ((unsigned)totwincount >> 1)) / totwincount; if (n != m) /* add next_curwin size */ { next_curwin_size -= p_wiw - (m - n); new_size += next_curwin_size; } } /* Skip frame that is full height when splitting or closing a * window, unless equalizing all frames. */ if (!current || dir != 'v' || topfr->fr_parent != NULL || (new_size != fr->fr_width) || frame_has_win(fr, next_curwin)) win_equal_rec(next_curwin, current, fr, dir, col, row, new_size + n, height); col += new_size + n; width -= new_size + n; if (n != m) /* contains curwin */ room -= new_size - next_curwin_size; else room -= new_size; totwincount -= wincount; } } #endif else /* topfr->fr_layout == FR_COL */ { #ifdef FEAT_VERTSPLIT topfr->fr_width = width; #endif topfr->fr_height = height; if (dir != 'h') /* equalize frame heights */ { /* Compute maximum number of windows vertically in this frame. */ n = frame_minheight(topfr, NOWIN); /* add one for the bottom window if it doesn't have a statusline */ if (row + height == cmdline_row && p_ls == 0) extra_sep = 1; else extra_sep = 0; totwincount = (n + extra_sep) / (p_wmh + 1); has_next_curwin = frame_has_win(topfr, next_curwin); /* * Compute height for "next_curwin" window and room available for * other windows. * "m" is the minimal height when counting p_wh for "next_curwin". */ m = frame_minheight(topfr, next_curwin); room = height - m; if (room < 0) { /* The room is less then 'winheight', use all space for the * current window. */ next_curwin_size = p_wh + room; room = 0; } else { next_curwin_size = -1; for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) { /* If 'winfixheight' set keep the window height if * possible. * Watch out for this window being the next_curwin. */ if (frame_fixed_height(fr)) { n = frame_minheight(fr, NOWIN); new_size = fr->fr_height; if (frame_has_win(fr, next_curwin)) { room += p_wh - p_wmh; next_curwin_size = 0; if (new_size < p_wh) new_size = p_wh; } else /* These windows don't use up room. */ totwincount -= (n + (fr->fr_next == NULL ? extra_sep : 0)) / (p_wmh + 1); room -= new_size - n; if (room < 0) { new_size += room; room = 0; } fr->fr_newheight = new_size; } } if (next_curwin_size == -1) { if (!has_next_curwin) next_curwin_size = 0; else if (totwincount > 1 && (room + (totwincount - 2)) / (totwincount - 1) > p_wh) { next_curwin_size = (room + p_wh + totwincount * p_wmh + (totwincount - 1)) / totwincount; room -= next_curwin_size - p_wh; } else next_curwin_size = p_wh; } } if (has_next_curwin) --totwincount; /* don't count curwin */ } for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) { n = m = 0; wincount = 1; if (fr->fr_next == NULL) /* last frame gets all that remains (avoid roundoff error) */ new_size = height; else if (dir == 'h') new_size = fr->fr_height; else if (frame_fixed_height(fr)) { new_size = fr->fr_newheight; wincount = 0; /* doesn't count as a sizeable window */ } else { /* Compute the maximum number of windows vert. in "fr". */ n = frame_minheight(fr, NOWIN); wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) / (p_wmh + 1); m = frame_minheight(fr, next_curwin); if (has_next_curwin) hnc = frame_has_win(fr, next_curwin); else hnc = FALSE; if (hnc) /* don't count next_curwin */ --wincount; if (totwincount == 0) new_size = room; else new_size = (wincount * room + ((unsigned)totwincount >> 1)) / totwincount; if (hnc) /* add next_curwin size */ { next_curwin_size -= p_wh - (m - n); new_size += next_curwin_size; room -= new_size - next_curwin_size; } else room -= new_size; new_size += n; } /* Skip frame that is full width when splitting or closing a * window, unless equalizing all frames. */ if (!current || dir != 'h' || topfr->fr_parent != NULL || (new_size != fr->fr_height) || frame_has_win(fr, next_curwin)) win_equal_rec(next_curwin, current, fr, dir, col, row, width, new_size); row += new_size; height -= new_size; totwincount -= wincount; } } } /* * close all windows for buffer 'buf' */ void close_windows(buf) buf_T *buf; { win_T *win; ++RedrawingDisabled; for (win = firstwin; win != NULL && lastwin != firstwin; ) { if (win->w_buffer == buf) { win_close(win, FALSE); win = firstwin; /* go back to the start */ } else win = win->w_next; } --RedrawingDisabled; } /* * close window "win" * If "free_buf" is TRUE related buffer may be unloaded. * * called by :quit, :close, :xit, :wq and findtag() */ void win_close(win, free_buf) win_T *win; int free_buf; { win_T *wp; #ifdef FEAT_AUTOCMD int other_buffer = FALSE; #endif int close_curwin = FALSE; frame_T *frp; int dir; int help_window = FALSE; if (lastwin == firstwin) { EMSG(_("E444: Cannot close last window")); return; } /* When closing the help window, try restoring a snapshot after closing * the window. Otherwise clear the snapshot, it's now invalid. */ if (win->w_buffer->b_help) help_window = TRUE; else clear_snapshot(); #ifdef FEAT_AUTOCMD if (win == curwin) { /* * Guess which window is going to be the new current window. * This may change because of the autocommands (sigh). */ wp = frame2win(win_altframe(win)); /* * Be careful: If autocommands delete the window, return now. */ if (wp->w_buffer != curbuf) { other_buffer = TRUE; apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); if (!win_valid(win) || firstwin == lastwin) return; } apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); if (!win_valid(win) || firstwin == lastwin) return; # ifdef FEAT_EVAL /* autocmds may abort script processing */ if (aborting()) return; # endif } #endif /* * Close the link to the buffer. */ close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0); /* Autocommands may have closed the window already, or closed the only * other window. */ if (!win_valid(win) || firstwin == lastwin) return; /* reduce the reference count to the argument list. */ alist_unlink(win->w_alist); /* remove the window and its frame from the tree of frames. */ frp = win->w_frame; wp = winframe_remove(win, &dir); vim_free(frp); win_free(win); /* Make sure curwin isn't invalid. It can cause severe trouble when * printing an error message. For win_equal() curbuf needs to be valid * too. */ if (win == curwin) { curwin = wp; #ifdef FEAT_QUICKFIX if (wp->w_p_pvw || bt_quickfix(wp->w_buffer)) { /* * The cursor goes to the preview or the quickfix window, try * finding another window to go to. */ for (;;) { if (wp->w_next == NULL) wp = firstwin; else wp = wp->w_next; if (wp == curwin) break; if (!wp->w_p_pvw && !bt_quickfix(wp->w_buffer)) { curwin = wp; break; } } } #endif curbuf = curwin->w_buffer; close_curwin = TRUE; } if (p_ea) win_equal(curwin, TRUE, #ifdef FEAT_VERTSPLIT dir #else 0 #endif ); else win_comp_pos(); if (close_curwin) { win_enter_ext(wp, FALSE, TRUE); #ifdef FEAT_AUTOCMD if (other_buffer) /* careful: after this wp and win may be invalid! */ apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); #endif } /* * if last window has a status line now and we don't want one, * remove the status line */ last_status(FALSE); /* After closing the help window, try restoring the window layout from * before it was opened. */ if (help_window) restore_snapshot(close_curwin); #if defined(FEAT_GUI) && defined(FEAT_VERTSPLIT) /* When 'guioptions' includes 'L' or 'R' may have to remove scrollbars. */ if (gui.in_use && !win_hasvertsplit()) gui_init_which_components(NULL); #endif redraw_all_later(NOT_VALID); } /* * Remove a window and its frame from the tree of frames. * Returns a pointer to the window that got the freed up space. */ /*ARGSUSED*/ static win_T * winframe_remove(win, dirp) win_T *win; int *dirp; /* set to 'v' or 'h' for direction if 'ea' */ { frame_T *frp, *frp2, *frp3; frame_T *frp_close = win->w_frame; win_T *wp; int old_height = 0; /* * Remove the window from its frame. */ frp2 = win_altframe(win); wp = frame2win(frp2); /* Remove this frame from the list of frames. */ frame_remove(frp_close); #ifdef FEAT_VERTSPLIT if (frp_close->fr_parent->fr_layout == FR_COL) { #endif /* When 'winfixheight' is set, remember its old size and restore * it later (it's a simplistic solution...). Don't do this if the * window will occupy the full height of the screen. */ if (frp2->fr_win != NULL && (frp2->fr_next != NULL || frp2->fr_prev != NULL) && frp2->fr_win->w_p_wfh) old_height = frp2->fr_win->w_height; frame_new_height(frp2, frp2->fr_height + frp_close->fr_height, frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); if (old_height != 0) win_setheight_win(old_height, frp2->fr_win); #ifdef FEAT_VERTSPLIT *dirp = 'v'; } else { frame_new_width(frp2, frp2->fr_width + frp_close->fr_width, frp2 == frp_close->fr_next ? TRUE : FALSE); *dirp = 'h'; } #endif /* If rows/columns go to a window below/right its positions need to be * updated. Can only be done after the sizes have been updated. */ if (frp2 == frp_close->fr_next) { int row = win->w_winrow; int col = W_WINCOL(win); frame_comp_pos(frp2, &row, &col); } if (frp2->fr_next == NULL && frp2->fr_prev == NULL) { /* There is no other frame in this list, move its info to the parent * and remove it. */ frp2->fr_parent->fr_layout = frp2->fr_layout; frp2->fr_parent->fr_child = frp2->fr_child; for (frp = frp2->fr_child; frp != NULL; frp = frp->fr_next) frp->fr_parent = frp2->fr_parent; frp2->fr_parent->fr_win = frp2->fr_win; if (frp2->fr_win != NULL) frp2->fr_win->w_frame = frp2->fr_parent; frp = frp2->fr_parent; vim_free(frp2); frp2 = frp->fr_parent; if (frp2 != NULL && frp2->fr_layout == frp->fr_layout) { /* The frame above the parent has the same layout, have to merge * the frames into this list. */ if (frp2->fr_child == frp) frp2->fr_child = frp->fr_child; frp->fr_child->fr_prev = frp->fr_prev; if (frp->fr_prev != NULL) frp->fr_prev->fr_next = frp->fr_child; for (frp3 = frp->fr_child; ; frp3 = frp3->fr_next) { frp3->fr_parent = frp2; if (frp3->fr_next == NULL) { frp3->fr_next = frp->fr_next; if (frp->fr_next != NULL) frp->fr_next->fr_prev = frp3; break; } } vim_free(frp); } } return wp; } /* * Find out which frame is going to get the freed up space when "win" is * closed. * if 'splitbelow'/'splitleft' the space goes to the window above/left. * if 'nosplitbelow'/'nosplitleft' the space goes to the window below/right. * This makes opening a window and closing it immediately keep the same window * layout. */ static frame_T * win_altframe(win) win_T *win; { frame_T *frp; int b; frp = win->w_frame; #ifdef FEAT_VERTSPLIT if (frp->fr_parent->fr_layout == FR_ROW) b = p_spr; else #endif b = p_sb; if ((!b && frp->fr_next != NULL) || frp->fr_prev == NULL) return frp->fr_next; return frp->fr_prev; } /* * Find the left-upper window in frame "frp". */ static win_T * frame2win(frp) frame_T *frp; { while (frp->fr_win == NULL) frp = frp->fr_child; return frp->fr_win; } /* * Return TRUE if frame "frp" contains window "wp". */ static int frame_has_win(frp, wp) frame_T *frp; win_T *wp; { frame_T *p; if (frp->fr_layout == FR_LEAF) return frp->fr_win == wp; for (p = frp->fr_child; p != NULL; p = p->fr_next) if (frame_has_win(p, wp)) return TRUE; return FALSE; } /* * Set a new height for a frame. Recursively sets the height for contained * frames and windows. Caller must take care of positions. */ static void frame_new_height(topfrp, height, topfirst, wfh) frame_T *topfrp; int height; int topfirst; /* resize topmost contained frame first */ int wfh; /* obey 'winfixheight' when there is a choice; may cause the height not to be set */ { frame_T *frp; int extra_lines; int h; if (topfrp->fr_win != NULL) { /* Simple case: just one window. */ win_new_height(topfrp->fr_win, height - topfrp->fr_win->w_status_height); } #ifdef FEAT_VERTSPLIT else if (topfrp->fr_layout == FR_ROW) { do { /* All frames in this row get the same new height. */ for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) { frame_new_height(frp, height, topfirst, wfh); if (frp->fr_height > height) { /* Could not fit the windows, make the whole row higher. */ height = frp->fr_height; break; } } } while (frp != NULL); } #endif else { /* Complicated case: Resize a column of frames. Resize the bottom * frame first, frames above that when needed. */ frp = topfrp->fr_child; if (wfh) /* Advance past frames with one window with 'wfh' set. */ while (frame_fixed_height(frp)) { frp = frp->fr_next; if (frp == NULL) return; /* no frame without 'wfh', give up */ } if (!topfirst) { /* Find the bottom frame of this column */ while (frp->fr_next != NULL) frp = frp->fr_next; if (wfh) /* Advance back for frames with one window with 'wfh' set. */ while (frame_fixed_height(frp)) frp = frp->fr_prev; } extra_lines = height - topfrp->fr_height; if (extra_lines < 0) { /* reduce height of contained frames, bottom or top frame first */ while (frp != NULL) { h = frame_minheight(frp, NULL); if (frp->fr_height + extra_lines < h) { extra_lines += frp->fr_height - h; frame_new_height(frp, h, topfirst, wfh); } else { frame_new_height(frp, frp->fr_height + extra_lines, topfirst, wfh); break; } if (topfirst) { do frp = frp->fr_next; while (wfh && frp != NULL && frame_fixed_height(frp)); } else { do frp = frp->fr_prev; while (wfh && frp != NULL && frame_fixed_height(frp)); } /* Increase "height" if we could not reduce enough frames. */ if (frp == NULL) height -= extra_lines; } } else if (extra_lines > 0) { /* increase height of bottom or top frame */ frame_new_height(frp, frp->fr_height + extra_lines, topfirst, wfh); } } topfrp->fr_height = height; } /* * Return TRUE if height of frame "frp" should not be changed because of * the 'winfixheight' option. */ static int frame_fixed_height(frp) frame_T *frp; { /* frame with one window: fixed height if 'winfixheight' set. */ if (frp->fr_win != NULL) return frp->fr_win->w_p_wfh; if (frp->fr_layout == FR_ROW) { /* The frame is fixed height if one of the frames in the row is fixed * height. */ for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) if (frame_fixed_height(frp)) return TRUE; return FALSE; } /* frp->fr_layout == FR_COL: The frame is fixed height if all of the * frames in the row are fixed height. */ for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) if (!frame_fixed_height(frp)) return FALSE; return TRUE; } #ifdef FEAT_VERTSPLIT /* * Add a status line to windows at the bottom of "frp". * Note: Does not check if there is room! */ static void frame_add_statusline(frp) frame_T *frp; { win_T *wp; if (frp->fr_layout == FR_LEAF) { wp = frp->fr_win; if (wp->w_status_height == 0) { if (wp->w_height > 0) /* don't make it negative */ --wp->w_height; wp->w_status_height = STATUS_HEIGHT; } } else if (frp->fr_layout == FR_ROW) { /* Handle all the frames in the row. */ for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) frame_add_statusline(frp); } else /* frp->fr_layout == FR_COL */ { /* Only need to handle the last frame in the column. */ for (frp = frp->fr_child; frp->fr_next != NULL; frp = frp->fr_next) ; frame_add_statusline(frp); } } /* * Set width of a frame. Handles recursively going through contained frames. * May remove separator line for windows at the right side (for win_close()). */ static void frame_new_width(topfrp, width, leftfirst) frame_T *topfrp; int width; int leftfirst; /* resize leftmost contained frame first */ { frame_T *frp; int extra_cols; int w; win_T *wp; if (topfrp->fr_layout == FR_LEAF) { /* Simple case: just one window. */ wp = topfrp->fr_win; /* Find out if there are any windows right of this one. */ for (frp = topfrp; frp->fr_parent != NULL; frp = frp->fr_parent) if (frp->fr_parent->fr_layout == FR_ROW && frp->fr_next != NULL) break; if (frp->fr_parent == NULL) wp->w_vsep_width = 0; win_new_width(wp, width - wp->w_vsep_width); } else if (topfrp->fr_layout == FR_COL) { /* All frames in this column get the same new width. */ for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) frame_new_width(frp, width, leftfirst); } else /* fr_layout == FR_ROW */ { /* Complicated case: Resize a row of frames. Resize the rightmost * frame first, frames left of it when needed. */ /* Find the rightmost frame of this row */ frp = topfrp->fr_child; if (!leftfirst) while (frp->fr_next != NULL) frp = frp->fr_next; extra_cols = width - topfrp->fr_width; if (extra_cols < 0) { /* reduce frame width, rightmost frame first */ while (frp != NULL) { w = frame_minwidth(frp, NULL); if (frp->fr_width + extra_cols < w) { extra_cols += frp->fr_width - w; frame_new_width(frp, w, leftfirst); } else { frame_new_width(frp, frp->fr_width + extra_cols, leftfirst); break; } if (leftfirst) frp = frp->fr_next; else frp = frp->fr_prev; } } else if (extra_cols > 0) { /* increase width of rightmost frame */ frame_new_width(frp, frp->fr_width + extra_cols, leftfirst); } } topfrp->fr_width = width; } /* * Add the vertical separator to windows at the right side of "frp". * Note: Does not check if there is room! */ static void frame_add_vsep(frp) frame_T *frp; { win_T *wp; if (frp->fr_layout == FR_LEAF) { wp = frp->fr_win; if (wp->w_vsep_width == 0) { if (wp->w_width > 0) /* don't make it negative */ --wp->w_width; wp->w_vsep_width = 1; } } else if (frp->fr_layout == FR_COL) { /* Handle all the frames in the column. */ for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next) frame_add_vsep(frp); } else /* frp->fr_layout == FR_ROW */ { /* Only need to handle the last frame in the row. */ frp = frp->fr_child; while (frp->fr_next != NULL) frp = frp->fr_next; frame_add_vsep(frp); } } /* * Set frame width from the window it contains. */ static void frame_fix_width(wp) win_T *wp; { wp->w_frame->fr_width = wp->w_width + wp->w_vsep_width; } #endif /* * Set frame height from the window it contains. */ static void frame_fix_height(wp) win_T *wp; { wp->w_frame->fr_height = wp->w_height + wp->w_status_height; } /* * Compute the minimal height for frame "topfrp". * Uses the 'winminheight' option. * When "next_curwin" isn't NULL, use p_wh for this window. * When "next_curwin" is NOWIN, don't use at least one line for the current * window. */ static int frame_minheight(topfrp, next_curwin) frame_T *topfrp; win_T *next_curwin; { frame_T *frp; int m; #ifdef FEAT_VERTSPLIT int n; #endif if (topfrp->fr_win != NULL) { if (topfrp->fr_win == next_curwin) m = p_wh + topfrp->fr_win->w_status_height; else { /* window: minimal height of the window plus status line */ m = p_wmh + topfrp->fr_win->w_status_height; /* Current window is minimal one line high */ if (p_wmh == 0 && topfrp->fr_win == curwin && next_curwin == NULL) ++m; } } #ifdef FEAT_VERTSPLIT else if (topfrp->fr_layout == FR_ROW) { /* get the minimal height from each frame in this row */ m = 0; for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) { n = frame_minheight(frp, next_curwin); if (n > m) m = n; } } #endif else { /* Add up the minimal heights for all frames in this column. */ m = 0; for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) m += frame_minheight(frp, next_curwin); } return m; } #ifdef FEAT_VERTSPLIT /* * Compute the minimal width for frame "topfrp". * When "next_curwin" isn't NULL, use p_wiw for this window. * When "next_curwin" is NOWIN, don't use at least one column for the current * window. */ static int frame_minwidth(topfrp, next_curwin) frame_T *topfrp; win_T *next_curwin; /* use p_wh and p_wiw for next_curwin */ { frame_T *frp; int m, n; if (topfrp->fr_win != NULL) { if (topfrp->fr_win == next_curwin) m = p_wiw + topfrp->fr_win->w_vsep_width; else { /* window: minimal width of the window plus separator column */ m = p_wmw + topfrp->fr_win->w_vsep_width; /* Current window is minimal one column wide */ if (p_wmw == 0 && topfrp->fr_win == curwin && next_curwin == NULL) ++m; } } else if (topfrp->fr_layout == FR_COL) { /* get the minimal width from each frame in this column */ m = 0; for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) { n = frame_minwidth(frp, next_curwin); if (n > m) m = n; } } else { /* Add up the minimal widths for all frames in this row. */ m = 0; for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) m += frame_minwidth(frp, next_curwin); } return m; } #endif /* * Try to close all windows except current one. * Buffers in the other windows become hidden if 'hidden' is set, or '!' is * used and the buffer was modified. * * Used by ":bdel" and ":only". */ void close_others(message, forceit) int message; int forceit; /* always hide all other windows */ { win_T *wp; win_T *nextwp; int r; if (lastwin == firstwin) { if (message #ifdef FEAT_AUTOCMD && !autocmd_busy #endif ) MSG(_("Already only one window")); return; } /* Be very careful here: autocommands may change the window layout. */ for (wp = firstwin; win_valid(wp); wp = nextwp) { nextwp = wp->w_next; if (wp != curwin) /* don't close current window */ { /* Check if it's allowed to abandon this window */ r = can_abandon(wp->w_buffer, forceit); #ifdef FEAT_AUTOCMD if (!win_valid(wp)) /* autocommands messed wp up */ { nextwp = firstwin; continue; } #endif if (!r) { #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) if (message && (p_confirm || cmdmod.confirm) && p_write) { dialog_changed(wp->w_buffer, FALSE); # ifdef FEAT_AUTOCMD if (!win_valid(wp)) /* autocommands messed wp up */ { nextwp = firstwin; continue; } # endif } if (bufIsChanged(wp->w_buffer)) #endif continue; } win_close(wp, !P_HID(wp->w_buffer) && !bufIsChanged(wp->w_buffer)); } } /* * If current window has a status line and we don't want one, * remove the status line. */ if (lastwin != firstwin) EMSG(_("E445: Other window contains changes")); } #endif /* FEAT_WINDOWS */ /* * init the cursor in the window * * called when a new file is being edited */ void win_init(wp) win_T *wp; { redraw_win_later(wp, NOT_VALID); wp->w_lines_valid = 0; wp->w_cursor.lnum = 1; wp->w_curswant = wp->w_cursor.col = 0; #ifdef FEAT_VIRTUALEDIT wp->w_cursor.coladd = 0; #endif wp->w_pcmark.lnum = 1; /* pcmark not cleared but set to line 1 */ wp->w_pcmark.col = 0; wp->w_prev_pcmark.lnum = 0; wp->w_prev_pcmark.col = 0; wp->w_topline = 1; #ifdef FEAT_DIFF wp->w_topfill = 0; #endif wp->w_botline = 2; #ifdef FEAT_FKMAP if (curwin->w_p_rl) wp->w_farsi = W_CONV + W_R_L; else wp->w_farsi = W_CONV; #endif } /* * Allocate the first window and put an empty buffer in it. * Called from main(). * When this fails we can't do anything: exit. */ void win_alloc_first() { curwin = win_alloc(NULL); curbuf = buflist_new(NULL, NULL, 1L, BLN_LISTED); if (curwin == NULL || curbuf == NULL) mch_exit(0); curwin->w_buffer = curbuf; curbuf->b_nwindows = 1; /* there is one window */ #ifdef FEAT_WINDOWS curwin->w_alist = &global_alist; #endif win_init(curwin); /* init current window */ topframe = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); if (topframe == NULL) mch_exit(0); topframe->fr_layout = FR_LEAF; #ifdef FEAT_VERTSPLIT topframe->fr_width = Columns; #endif topframe->fr_height = Rows - p_ch; #ifdef FEAT_WINDOWS p_ch_used = p_ch; #endif topframe->fr_win = curwin; curwin->w_frame = topframe; } #if defined(FEAT_WINDOWS) || defined(PROTO) /* * Go to another window. * When jumping to another buffer, stop Visual mode. Do this before * changing windows so we can yank the selection into the '*' register. * When jumping to another window on the same buffer, adjust its cursor * position to keep the same Visual area. */ void win_goto(wp) win_T *wp; { #ifdef FEAT_CMDWIN if (cmdwin_type != 0) { beep_flush(); return; } #endif #ifdef FEAT_VISUAL if (wp->w_buffer != curbuf) reset_VIsual_and_resel(); else if (VIsual_active) wp->w_cursor = curwin->w_cursor; #endif #ifdef FEAT_GUI need_mouse_correct = TRUE; #endif win_enter(wp, TRUE); } #if defined(FEAT_PERL) || defined(PROTO) /* * Find window number "winnr" (counting top to bottom). */ win_T * win_find_nr(winnr) int winnr; { win_T *wp; # ifdef FEAT_WINDOWS for (wp = firstwin; wp != NULL; wp = wp->w_next) if (--winnr == 0) break; return wp; # else return curwin; # endif } #endif #ifdef FEAT_VERTSPLIT /* * Move to window above or below "count" times. */ static void win_goto_ver(up, count) int up; /* TRUE to go to win above */ long count; { frame_T *fr; frame_T *nfr; frame_T *foundfr; foundfr = curwin->w_frame; while (count--) { /* * First go upwards in the tree of frames until we find a upwards or * downwards neighbor. */ fr = foundfr; for (;;) { if (fr == topframe) goto end; if (up) nfr = fr->fr_prev; else nfr = fr->fr_next; if (fr->fr_parent->fr_layout == FR_COL && nfr != NULL) break; fr = fr->fr_parent; } /* * Now go downwards to find the bottom or top frame in it. */ for (;;) { if (nfr->fr_layout == FR_LEAF) { foundfr = nfr; break; } fr = nfr->fr_child; if (nfr->fr_layout == FR_ROW) { /* Find the frame at the cursor row. */ while (fr->fr_next != NULL && frame2win(fr)->w_wincol + fr->fr_width <= curwin->w_wincol + curwin->w_wcol) fr = fr->fr_next; } if (nfr->fr_layout == FR_COL && up) while (fr->fr_next != NULL) fr = fr->fr_next; nfr = fr; } } end: if (foundfr != NULL) win_goto(foundfr->fr_win); } /* * Move to left or right window. */ static void win_goto_hor(left, count) int left; /* TRUE to go to left win */ long count; { frame_T *fr; frame_T *nfr; frame_T *foundfr; foundfr = curwin->w_frame; while (count--) { /* * First go upwards in the tree of frames until we find a left or * right neighbor. */ fr = foundfr; for (;;) { if (fr == topframe) goto end; if (left) nfr = fr->fr_prev; else nfr = fr->fr_next; if (fr->fr_parent->fr_layout == FR_ROW && nfr != NULL) break; fr = fr->fr_parent; } /* * Now go downwards to find the leftmost or rightmost frame in it. */ for (;;) { if (nfr->fr_layout == FR_LEAF) { foundfr = nfr; break; } fr = nfr->fr_child; if (nfr->fr_layout == FR_COL) { /* Find the frame at the cursor row. */ while (fr->fr_next != NULL && frame2win(fr)->w_winrow + fr->fr_height <= curwin->w_winrow + curwin->w_wrow) fr = fr->fr_next; } if (nfr->fr_layout == FR_ROW && left) while (fr->fr_next != NULL) fr = fr->fr_next; nfr = fr; } } end: if (foundfr != NULL) win_goto(foundfr->fr_win); } #endif /* * Make window "wp" the current window. */ void win_enter(wp, undo_sync) win_T *wp; int undo_sync; { win_enter_ext(wp, undo_sync, FALSE); } /* * Make window wp the current window. * Can be called with "curwin_invalid" TRUE, which means that curwin has just * been closed and isn't valid. */ static void win_enter_ext(wp, undo_sync, curwin_invalid) win_T *wp; int undo_sync; int curwin_invalid; { #ifdef FEAT_AUTOCMD int other_buffer = FALSE; #endif if (wp == curwin && !curwin_invalid) /* nothing to do */ return; #ifdef FEAT_AUTOCMD if (!curwin_invalid) { /* * Be careful: If autocommands delete the window, return now. */ if (wp->w_buffer != curbuf) { apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); other_buffer = TRUE; if (!win_valid(wp)) return; } apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); if (!win_valid(wp)) return; # ifdef FEAT_EVAL /* autocmds may abort script processing */ if (aborting()) return; # endif } #endif /* sync undo before leaving the current buffer */ if (undo_sync && curbuf != wp->w_buffer) u_sync(); /* may have to copy the buffer options when 'cpo' contains 'S' */ if (wp->w_buffer != curbuf) buf_copy_options(wp->w_buffer, BCO_ENTER | BCO_NOHELP); if (!curwin_invalid) { prevwin = curwin; /* remember for CTRL-W p */ curwin->w_redr_status = TRUE; } curwin = wp; curbuf = wp->w_buffer; check_cursor(); #ifdef FEAT_VIRTUALEDIT if (!virtual_active()) curwin->w_cursor.coladd = 0; #endif changed_line_abv_curs(); /* assume cursor position needs updating */ if (curwin->w_localdir != NULL) { /* Window has a local directory: Save current directory as global * directory (unless that was done already) and change to the local * directory. */ if (globaldir == NULL) { char_u cwd[MAXPATHL]; if (mch_dirname(cwd, MAXPATHL) == OK) globaldir = vim_strsave(cwd); } mch_chdir((char *)curwin->w_localdir); shorten_fnames(TRUE); } else if (globaldir != NULL) { /* Window doesn't have a local directory and we are not in the global * directory: Change to the global directory. */ mch_chdir((char *)globaldir); vim_free(globaldir); globaldir = NULL; shorten_fnames(TRUE); } #ifdef FEAT_AUTOCMD apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); if (other_buffer) apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); #endif #ifdef FEAT_TITLE maketitle(); #endif curwin->w_redr_status = TRUE; if (restart_edit) redraw_later(VALID); /* causes status line redraw */ /* set window height to desired minimal value */ if (curwin->w_height < p_wh && !curwin->w_p_wfh) win_setheight((int)p_wh); else if (curwin->w_height == 0) win_setheight(1); #ifdef FEAT_VERTSPLIT /* set window width to desired minimal value */ if (curwin->w_width < p_wiw) win_setwidth((int)p_wiw); #endif #ifdef FEAT_MOUSE setmouse(); /* in case jumped to/from help buffer */ #endif #if defined(FEAT_NETBEANS_INTG) || defined(FEAT_SUN_WORKSHOP) /* Change directories when the acd option is set on and after * switching windows. */ if (p_acd && curbuf->b_ffname != NULL && vim_chdirfile(curbuf->b_ffname) == OK) shorten_fnames(TRUE); #endif } #endif /* FEAT_WINDOWS */ #if defined(FEAT_WINDOWS) || defined(FEAT_SIGNS) || defined(PROTO) /* * Jump to the first open window that contains buffer buf if one exists * TODO: Alternatively jump to last open window? Dependent from 'splitbelow'? * Returns pointer to window if it exists, otherwise NULL. */ win_T * buf_jump_open_win(buf) buf_T *buf; { # ifdef FEAT_WINDOWS win_T *wp; for (wp = firstwin; wp; wp = wp->w_next) if (wp->w_buffer == buf) break; if (wp != NULL) win_enter(wp, FALSE); return wp; # else if (curwin->w_buffer == buf) return curwin; return NULL; # endif } #endif /* * allocate a window structure and link it in the window list */ /*ARGSUSED*/ static win_T * win_alloc(after) win_T *after; { win_T *newwin; /* * allocate window structure and linesizes arrays */ newwin = (win_T *)alloc_clear((unsigned)sizeof(win_T)); if (newwin != NULL && win_alloc_lines(newwin) == FAIL) { vim_free(newwin); newwin = NULL; } if (newwin != NULL) { /* * link the window in the window list */ #ifdef FEAT_WINDOWS win_append(after, newwin); #endif #ifdef FEAT_VERTSPLIT newwin->w_wincol = 0; newwin->w_width = Columns; #endif /* position the display and the cursor at the top of the file. */ newwin->w_topline = 1; #ifdef FEAT_DIFF newwin->w_topfill = 0; #endif newwin->w_botline = 2; newwin->w_cursor.lnum = 1; #ifdef FEAT_SCROLLBIND newwin->w_scbind_pos = 1; #endif /* We won't calculate w_fraction until resizing the window */ newwin->w_fraction = 0; newwin->w_prev_fraction_row = -1; #ifdef FEAT_GUI if (gui.in_use) { out_flush(); gui_create_scrollbar(&newwin->w_scrollbars[SBAR_LEFT], SBAR_LEFT, newwin); gui_create_scrollbar(&newwin->w_scrollbars[SBAR_RIGHT], SBAR_RIGHT, newwin); } #endif #ifdef FEAT_EVAL var_init(&newwin->w_vars); /* init internal variables */ #endif #ifdef FEAT_FOLDING foldInitWin(newwin); #endif } return newwin; } #if defined(FEAT_WINDOWS) || defined(PROTO) /* * remove window 'wp' from the window list and free the structure */ static void win_free(wp) win_T *wp; { int i; #ifdef FEAT_PERL perl_win_free(wp); #endif #ifdef FEAT_PYTHON python_window_free(wp); #endif #ifdef FEAT_TCL tcl_window_free(wp); #endif #ifdef FEAT_RUBY ruby_window_free(wp); #endif clear_winopt(&wp->w_onebuf_opt); clear_winopt(&wp->w_allbuf_opt); #ifdef FEAT_EVAL var_clear(&wp->w_vars); /* free all internal variables */ #endif if (prevwin == wp) prevwin = NULL; win_free_lsize(wp); for (i = 0; i < wp->w_tagstacklen; ++i) vim_free(wp->w_tagstack[i].tagname); vim_free(wp->w_localdir); #ifdef FEAT_SEARCH_EXTRA vim_free(wp->w_match.regprog); #endif #ifdef FEAT_JUMPLIST free_jumplist(wp); #endif #ifdef FEAT_GUI if (gui.in_use) { out_flush(); gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_LEFT]); gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_RIGHT]); } #endif /* FEAT_GUI */ win_remove(wp); vim_free(wp); } /* * Append window "wp" in the window list after window "after". */ static void win_append(after, wp) win_T *after, *wp; { win_T *before; if (after == NULL) /* after NULL is in front of the first */ before = firstwin; else before = after->w_next; wp->w_next = before; wp->w_prev = after; if (after == NULL) firstwin = wp; else after->w_next = wp; if (before == NULL) lastwin = wp; else before->w_prev = wp; } /* * Remove a window from the window list. */ static void win_remove(wp) win_T *wp; { if (wp->w_prev != NULL) wp->w_prev->w_next = wp->w_next; else firstwin = wp->w_next; if (wp->w_next != NULL) wp->w_next->w_prev = wp->w_prev; else lastwin = wp->w_prev; } /* * Append frame "frp" in a frame list after frame "after". */ static void frame_append(after, frp) frame_T *after, *frp; { frp->fr_next = after->fr_next; after->fr_next = frp; if (frp->fr_next != NULL) frp->fr_next->fr_prev = frp; frp->fr_prev = after; } /* * Insert frame "frp" in a frame list before frame "before". */ static void frame_insert(before, frp) frame_T *before, *frp; { frp->fr_next = before; frp->fr_prev = before->fr_prev; before->fr_prev = frp; if (frp->fr_prev != NULL) frp->fr_prev->fr_next = frp; else frp->fr_parent->fr_child = frp; } /* * Remove a frame from a frame list. */ static void frame_remove(frp) frame_T *frp; { if (frp->fr_prev != NULL) frp->fr_prev->fr_next = frp->fr_next; else frp->fr_parent->fr_child = frp->fr_next; if (frp->fr_next != NULL) frp->fr_next->fr_prev = frp->fr_prev; } #endif /* FEAT_WINDOWS */ /* * Allocate w_lines[] for window "wp". * Return FAIL for failure, OK for success. */ int win_alloc_lines(wp) win_T *wp; { wp->w_lines_valid = 0; wp->w_lines = (wline_T *)alloc((unsigned)(Rows * sizeof(wline_T))); if (wp->w_lines == NULL) return FAIL; return OK; } /* * free lsize arrays for a window */ void win_free_lsize(wp) win_T *wp; { vim_free(wp->w_lines); wp->w_lines = NULL; } /* * Called from win_new_shellsize() after Rows changed. */ void shell_new_rows() { int h = (int)(Rows - p_ch); if (firstwin == NULL) /* not initialized yet */ return; #ifdef FEAT_WINDOWS if (h < frame_minheight(topframe, NULL)) h = frame_minheight(topframe, NULL); /* First try setting the heights of windows without 'winfixheight'. If * that doesn't result in the right height, forget about that option. */ frame_new_height(topframe, h, FALSE, TRUE); if (topframe->fr_height != h) frame_new_height(topframe, h, FALSE, FALSE); (void)win_comp_pos(); /* recompute w_winrow and w_wincol */ #else if (h < 1) h = 1; win_new_height(firstwin, h); #endif compute_cmdrow(); #ifdef FEAT_WINDOWS p_ch_used = p_ch; #endif #if 0 /* Disabled: don't want making the screen smaller make a window larger. */ if (p_ea) win_equal(curwin, FALSE, 'v'); #endif } #if defined(FEAT_VERTSPLIT) || defined(PROTO) /* * Called from win_new_shellsize() after Columns changed. */ void shell_new_columns() { if (firstwin == NULL) /* not initialized yet */ return; frame_new_width(topframe, (int)Columns, FALSE); (void)win_comp_pos(); /* recompute w_winrow and w_wincol */ #if 0 /* Disabled: don't want making the screen smaller make a window larger. */ if (p_ea) win_equal(curwin, FALSE, 'h'); #endif } #endif #if defined(FEAT_CMDWIN) || defined(PROTO) /* * Save the size of all windows in "gap". */ void win_size_save(gap) garray_T *gap; { win_T *wp; ga_init2(gap, (int)sizeof(int), 1); if (ga_grow(gap, win_count() * 2) == OK) for (wp = firstwin; wp != NULL; wp = wp->w_next) { ((int *)gap->ga_data)[gap->ga_len++] = wp->w_width + wp->w_vsep_width; ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height; } } /* * Restore window sizes, but only if the number of windows is still the same. * Does not free the growarray. */ void win_size_restore(gap) garray_T *gap; { win_T *wp; int i; if (win_count() * 2 == gap->ga_len) { i = 0; for (wp = firstwin; wp != NULL; wp = wp->w_next) { frame_setwidth(wp->w_frame, ((int *)gap->ga_data)[i++]); win_setheight_win(((int *)gap->ga_data)[i++], wp); } /* recompute the window positions */ (void)win_comp_pos(); } } #endif /* FEAT_CMDWIN */ #if defined(FEAT_WINDOWS) || defined(PROTO) /* * Update the position for all windows, using the width and height of the * frames. * Returns the row just after the last window. */ static int win_comp_pos() { int row = 0; int col = 0; frame_comp_pos(topframe, &row, &col); return row; } /* * Update the position of the windows in frame "topfrp", using the width and * height of the frames. * "*row" and "*col" are the top-left position of the frame. They are updated * to the bottom-right position plus one. */ static void frame_comp_pos(topfrp, row, col) frame_T *topfrp; int *row; int *col; { win_T *wp; frame_T *frp; #ifdef FEAT_VERTSPLIT int startcol; int startrow; #endif wp = topfrp->fr_win; if (wp != NULL) { if (wp->w_winrow != *row #ifdef FEAT_VERTSPLIT || wp->w_wincol != *col #endif ) { /* position changed, redraw */ wp->w_winrow = *row; #ifdef FEAT_VERTSPLIT wp->w_wincol = *col; #endif redraw_win_later(wp, NOT_VALID); wp->w_redr_status = TRUE; } *row += wp->w_height + wp->w_status_height; #ifdef FEAT_VERTSPLIT *col += wp->w_width + wp->w_vsep_width; #endif } else { #ifdef FEAT_VERTSPLIT startrow = *row; startcol = *col; #endif for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) { #ifdef FEAT_VERTSPLIT if (topfrp->fr_layout == FR_ROW) *row = startrow; /* all frames are at the same row */ else *col = startcol; /* all frames are at the same col */ #endif frame_comp_pos(frp, row, col); } } } #endif /* FEAT_WINDOWS */ /* * Set current window height and take care of repositioning other windows to * fit around it. */ void win_setheight(height) int height; { win_setheight_win(height, curwin); } /* * Set the window height of window "win" and take care of repositioning other * windows to fit around it. */ void win_setheight_win(height, win) int height; win_T *win; { int row; if (win == curwin) { /* Always keep current window at least one line high, even when * 'winminheight' is zero. */ #ifdef FEAT_WINDOWS if (height < p_wmh) height = p_wmh; #endif if (height == 0) height = 1; } #ifdef FEAT_WINDOWS frame_setheight(win->w_frame, height + win->w_status_height); /* recompute the window positions */ row = win_comp_pos(); #else if (height > topframe->fr_height) height = topframe->fr_height; win->w_height = height; row = height; #endif /* * If there is extra space created between the last window and the command * line, clear it. */ if (full_screen && msg_scrolled == 0 && row < cmdline_row) screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); cmdline_row = row; msg_row = row; msg_col = 0; redraw_all_later(NOT_VALID); } #if defined(FEAT_WINDOWS) || defined(PROTO) /* * Set the height of a frame to "height" and take care that all frames and * windows inside it are resized. Also resize frames on the left and right if * the are in the same FR_ROW frame. * * Strategy: * If the frame is part of a FR_COL frame, try fitting the frame in that * frame. If that doesn't work (the FR_COL frame is too small), recursively * go to containing frames to resize them and make room. * If the frame is part of a FR_ROW frame, all frames must be resized as well. * Check for the minimal height of the FR_ROW frame. * At the top level we can also use change the command line height. */ static void frame_setheight(curfrp, height) frame_T *curfrp; int height; { int room; /* total number of lines available */ int take; /* number of lines taken from other windows */ int room_cmdline; /* lines available from cmdline */ int run; frame_T *frp; int h; int room_reserved; /* If the height already is the desired value, nothing to do. */ if (curfrp->fr_height == height) return; if (curfrp->fr_parent == NULL) { /* topframe: can only change the command line */ if (height > Rows - p_ch) height = Rows - p_ch; if (height > 0) frame_new_height(curfrp, height, FALSE, FALSE); } else if (curfrp->fr_parent->fr_layout == FR_ROW) { /* Row of frames: Also need to resize frames left and right of this * one. First check for the minimal height of these. */ h = frame_minheight(curfrp->fr_parent, NULL); if (height < h) height = h; frame_setheight(curfrp->fr_parent, height); } else { /* * Column of frames: try to change only frames in this column. */ #ifdef FEAT_VERTSPLIT /* * Do this twice: * 1: compute room available, if it's not enough try resizing the * containing frame. * 2: compute the room available and adjust the height to it. * Try not to reduce the height of a window with 'winfixheight' set. */ for (run = 1; run <= 2; ++run) #else for (;;) #endif { room = 0; room_reserved = 0; for (frp = curfrp->fr_parent->fr_child; frp != NULL; frp = frp->fr_next) { if (frp != curfrp && frp->fr_win != NULL && frp->fr_win->w_p_wfh) room_reserved += frp->fr_height; room += frp->fr_height; if (frp != curfrp) room -= frame_minheight(frp, NULL); } #ifdef FEAT_VERTSPLIT if (curfrp->fr_width != Columns) room_cmdline = 0; else #endif { room_cmdline = Rows - p_ch - (lastwin->w_winrow + lastwin->w_height + lastwin->w_status_height); if (room_cmdline < 0) room_cmdline = 0; } if (height <= room + room_cmdline) break; #ifdef FEAT_VERTSPLIT if (run == 2 || curfrp->fr_width == Columns) #endif { if (height > room + room_cmdline) height = room + room_cmdline; break; } #ifdef FEAT_VERTSPLIT frame_setheight(curfrp->fr_parent, height + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1); #endif /*NOTREACHED*/ } /* * Compute the number of lines we will take from others frames (can be * negative!). */ take = height - curfrp->fr_height; /* If there is not enough room, also reduce the height of a window * with 'winfixheight' set. */ if (height > room + room_cmdline - room_reserved) room_reserved = room + room_cmdline - height; /* If there is only a 'winfixheight' window and making the * window smaller, need to make the other window taller. */ if (take < 0 && room - curfrp->fr_height < room_reserved) room_reserved = 0; if (take > 0 && room_cmdline > 0) { /* use lines from cmdline first */ if (take < room_cmdline) room_cmdline = take; take -= room_cmdline; topframe->fr_height += room_cmdline; } /* * set the current frame to the new height */ frame_new_height(curfrp, height, FALSE, FALSE); /* * First take lines from the frames after the current frame. If * that is not enough, takes lines from frames above the current * frame. */ for (run = 0; run < 2; ++run) { if (run == 0) frp = curfrp->fr_next; /* 1st run: start with next window */ else frp = curfrp->fr_prev; /* 2nd run: start with prev window */ while (frp != NULL && take != 0) { h = frame_minheight(frp, NULL); if (room_reserved > 0 && frp->fr_win != NULL && frp->fr_win->w_p_wfh) { if (room_reserved >= frp->fr_height) room_reserved -= frp->fr_height; else { if (frp->fr_height - room_reserved > take) room_reserved = frp->fr_height - take; take -= frp->fr_height - room_reserved; frame_new_height(frp, room_reserved, FALSE, FALSE); room_reserved = 0; } } else { if (frp->fr_height - take < h) { take -= frp->fr_height - h; frame_new_height(frp, h, FALSE, FALSE); } else { frame_new_height(frp, frp->fr_height - take, FALSE, FALSE); take = 0; } } if (run == 0) frp = frp->fr_next; else frp = frp->fr_prev; } } } } #if defined(FEAT_VERTSPLIT) || defined(PROTO) /* * Set current window width and take care of repositioning other windows to * fit around it. */ void win_setwidth(width) int width; { win_setwidth_win(width, curwin); } void win_setwidth_win(width, wp) int width; win_T *wp; { /* Always keep current window at least one column wide, even when * 'winminwidth' is zero. */ if (wp == curwin) { if (width < p_wmw) width = p_wmw; if (width == 0) width = 1; } frame_setwidth(wp->w_frame, width + wp->w_vsep_width); /* recompute the window positions */ (void)win_comp_pos(); redraw_all_later(NOT_VALID); } /* * Set the width of a frame to "width" and take care that all frames and * windows inside it are resized. Also resize frames above and below if the * are in the same FR_ROW frame. * * Strategy is similar to frame_setheight(). */ static void frame_setwidth(curfrp, width) frame_T *curfrp; int width; { int room; /* total number of lines available */ int take; /* number of lines taken from other windows */ int run; frame_T *frp; int w; /* If the width already is the desired value, nothing to do. */ if (curfrp->fr_width == width) return; if (curfrp->fr_parent == NULL) /* topframe: can't change width */ return; if (curfrp->fr_parent->fr_layout == FR_COL) { /* Column of frames: Also need to resize frames above and below of * this one. First check for the minimal width of these. */ w = frame_minwidth(curfrp->fr_parent, NULL); if (width < w) width = w; frame_setwidth(curfrp->fr_parent, width); } else { /* * Row of frames: try to change only frames in this row. * * Do this twice: * 1: compute room available, if it's not enough try resizing the * containing frame. * 2: compute the room available and adjust the width to it. */ for (run = 1; run <= 2; ++run) { room = 0; for (frp = curfrp->fr_parent->fr_child; frp != NULL; frp = frp->fr_next) { room += frp->fr_width; if (frp != curfrp) room -= frame_minwidth(frp, NULL); } if (width <= room) break; if (run == 2 || curfrp->fr_height >= Rows - p_ch) { if (width > room) width = room; break; } frame_setwidth(curfrp->fr_parent, width + frame_minwidth(curfrp->fr_parent, NOWIN) - (int)p_wmw - 1); } /* * Compute the number of lines we will take from others frames (can be * negative!). */ take = width - curfrp->fr_width; /* * set the current frame to the new width */ frame_new_width(curfrp, width, FALSE); /* * First take lines from the frames right of the current frame. If * that is not enough, takes lines from frames left of the current * frame. */ for (run = 0; run < 2; ++run) { if (run == 0) frp = curfrp->fr_next; /* 1st run: start with next window */ else frp = curfrp->fr_prev; /* 2nd run: start with prev window */ while (frp != NULL && take != 0) { w = frame_minwidth(frp, NULL); if (frp->fr_width - take < w) { take -= frp->fr_width - w; frame_new_width(frp, w, FALSE); } else { frame_new_width(frp, frp->fr_width - take, FALSE); take = 0; } if (run == 0) frp = frp->fr_next; else frp = frp->fr_prev; } } } } #endif /* FEAT_VERTSPLIT */ /* * Check 'winminheight' for a valid value. */ void win_setminheight() { int room; int first = TRUE; win_T *wp; /* loop until there is a 'winminheight' that is possible */ while (p_wmh > 0) { /* TODO: handle vertical splits */ room = -p_wh; for (wp = firstwin; wp != NULL; wp = wp->w_next) room += wp->w_height - p_wmh; if (room >= 0) break; --p_wmh; if (first) { EMSG(_(e_noroom)); first = FALSE; } } } #ifdef FEAT_MOUSE /* * Status line of dragwin is dragged "offset" lines down (negative is up). */ void win_drag_status_line(dragwin, offset) win_T *dragwin; int offset; { frame_T *curfr; frame_T *fr; int room; int row; int up; /* if TRUE, drag status line up, otherwise down */ int n; fr = dragwin->w_frame; curfr = fr; if (fr != topframe) /* more than one window */ { fr = fr->fr_parent; /* When the parent frame is not a column of frames, its parent should * be. */ if (fr->fr_layout != FR_COL) { curfr = fr; if (fr != topframe) /* only a row of windows, may drag statusline */ fr = fr->fr_parent; } } /* If this is the last frame in a column, may want to resize the parent * frame instead (go two up to skip a row of frames). */ while (curfr != topframe && curfr->fr_next == NULL) { if (fr != topframe) fr = fr->fr_parent; curfr = fr; if (fr != topframe) fr = fr->fr_parent; } if (offset < 0) /* drag up */ { up = TRUE; offset = -offset; /* sum up the room of the current frame and above it */ if (fr == curfr) { /* only one window */ room = fr->fr_height - frame_minheight(fr, NULL); } else { room = 0; for (fr = fr->fr_child; ; fr = fr->fr_next) { room += fr->fr_height - frame_minheight(fr, NULL); if (fr == curfr) break; } } fr = curfr->fr_next; /* put fr at frame that grows */ } else /* drag down */ { up = FALSE; /* * Only dragging the last status line can reduce p_ch. */ room = Rows - cmdline_row; if (curfr->fr_next == NULL) room -= 1; else room -= p_ch; if (room < 0) room = 0; /* sum up the room of frames below of the current one */ for (fr = curfr->fr_next; fr != NULL; fr = fr->fr_next) room += fr->fr_height - frame_minheight(fr, NULL); fr = curfr; /* put fr at window that grows */ } if (room < offset) /* Not enough room */ offset = room; /* Move as far as we can */ if (offset <= 0) return; /* * Grow frame fr by "offset" lines. * Doesn't happen when dragging the last status line up. */ if (fr != NULL) frame_new_height(fr, fr->fr_height + offset, up, FALSE); if (up) fr = curfr; /* current frame gets smaller */ else fr = curfr->fr_next; /* next frame gets smaller */ /* * Now make the other frames smaller. */ while (fr != NULL && offset > 0) { n = frame_minheight(fr, NULL); if (fr->fr_height - offset <= n) { offset -= fr->fr_height - n; frame_new_height(fr, n, !up, FALSE); } else { frame_new_height(fr, fr->fr_height - offset, !up, FALSE); break; } if (up) fr = fr->fr_prev; else fr = fr->fr_next; } row = win_comp_pos(); screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0); cmdline_row = row; p_ch = Rows - cmdline_row; if (p_ch < 1) p_ch = 1; redraw_all_later(NOT_VALID); showmode(); } #ifdef FEAT_VERTSPLIT /* * Separator line of dragwin is dragged "offset" lines right (negative is left). */ void win_drag_vsep_line(dragwin, offset) win_T *dragwin; int offset; { frame_T *curfr; frame_T *fr; int room; int left; /* if TRUE, drag separator line left, otherwise right */ int n; fr = dragwin->w_frame; if (fr == topframe) /* only one window (cannot happe?) */ return; curfr = fr; fr = fr->fr_parent; /* When the parent frame is not a row of frames, its parent should be. */ if (fr->fr_layout != FR_ROW) { if (fr == topframe) /* only a column of windows (cannot happen?) */ return; curfr = fr; fr = fr->fr_parent; } /* If this is the last frame in a row, may want to resize a parent * frame instead. */ while (curfr->fr_next == NULL) { if (fr == topframe) break; curfr = fr; fr = fr->fr_parent; if (fr != topframe) { curfr = fr; fr = fr->fr_parent; } } if (offset < 0) /* drag left */ { left = TRUE; offset = -offset; /* sum up the room of the current frame and left of it */ room = 0; for (fr = fr->fr_child; ; fr = fr->fr_next) { room += fr->fr_width - frame_minwidth(fr, NULL); if (fr == curfr) break; } fr = curfr->fr_next; /* put fr at frame that grows */ } else /* drag right */ { left = FALSE; /* sum up the room of frames right of the current one */ room = 0; for (fr = curfr->fr_next; fr != NULL; fr = fr->fr_next) room += fr->fr_width - frame_minwidth(fr, NULL); fr = curfr; /* put fr at window that grows */ } if (room < offset) /* Not enough room */ offset = room; /* Move as far as we can */ if (offset <= 0) /* No room at all, quit. */ return; /* grow frame fr by offset lines */ frame_new_width(fr, fr->fr_width + offset, left); /* shrink other frames: current and at the left or at the right */ if (left) fr = curfr; /* current frame gets smaller */ else fr = curfr->fr_next; /* next frame gets smaller */ while (fr != NULL && offset > 0) { n = frame_minwidth(fr, NULL); if (fr->fr_width - offset <= n) { offset -= fr->fr_width - n; frame_new_width(fr, n, !left); } else { frame_new_width(fr, fr->fr_width - offset, !left); break; } if (left) fr = fr->fr_prev; else fr = fr->fr_next; } (void)win_comp_pos(); redraw_all_later(NOT_VALID); } #endif /* FEAT_VERTSPLIT */ #endif /* FEAT_MOUSE */ #endif /* FEAT_WINDOWS */ /* * Set the height of a window. * This takes care of the things inside the window, not what happens to the * window position, the frame or to other windows. */ static void win_new_height(wp, height) win_T *wp; int height; { linenr_T lnum; int sline, line_size; #define FRACTION_MULT 16384L /* Don't want a negative height. Happens when splitting a tiny window. * Will equalize heights soon to fix it. */ if (height < 0) height = 0; if (wp->w_wrow != wp->w_prev_fraction_row && wp->w_height > 0) wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT + FRACTION_MULT / 2) / (long)wp->w_height; wp->w_height = height; wp->w_skipcol = 0; /* Don't change w_topline when height is zero. Don't set w_topline when * 'scrollbind' is set and this isn't the current window. */ if (height > 0 #ifdef FEAT_SCROLLBIND && (!wp->w_p_scb || wp == curwin) #endif ) { lnum = wp->w_cursor.lnum; if (lnum < 1) /* can happen when starting up */ lnum = 1; wp->w_wrow = ((long)wp->w_fraction * (long)height - 1L) / FRACTION_MULT; line_size = plines_win_col(wp, lnum, (long)(wp->w_cursor.col)) - 1; sline = wp->w_wrow - line_size; if (sline < 0) { /* * Cursor line would go off top of screen if w_wrow was this high. */ wp->w_wrow = line_size; } else { while (sline > 0 && lnum > 1) { #ifdef FEAT_FOLDING hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); if (lnum == 1) { /* first line in buffer is folded */ line_size = 1; --sline; break; } #endif --lnum; #ifdef FEAT_DIFF if (lnum == wp->w_topline) line_size = plines_win_nofill(wp, lnum, TRUE) + wp->w_topfill; else #endif line_size = plines_win(wp, lnum, TRUE); sline -= line_size; } if (sline < 0) { /* * Line we want at top would go off top of screen. Use next * line instead. */ #ifdef FEAT_FOLDING hasFoldingWin(wp, lnum, NULL, &lnum, TRUE, NULL); #endif lnum++; wp->w_wrow -= line_size + sline; } else if (sline > 0) { /* First line of file reached, use that as topline. */ lnum = 1; wp->w_wrow -= sline; } } set_topline(wp, lnum); } if (wp == curwin) { if (p_so) update_topline(); curs_columns(FALSE); /* validate w_wrow */ } wp->w_prev_fraction_row = wp->w_wrow; win_comp_scroll(wp); redraw_win_later(wp, NOT_VALID); #ifdef FEAT_WINDOWS wp->w_redr_status = TRUE; #endif invalidate_botline_win(wp); } #ifdef FEAT_VERTSPLIT /* * Set the width of a window. */ static void win_new_width(wp, width) win_T *wp; int width; { wp->w_width = width; wp->w_lines_valid = 0; changed_line_abv_curs_win(wp); invalidate_botline_win(wp); if (wp == curwin) { update_topline(); curs_columns(TRUE); /* validate w_wrow */ } redraw_win_later(wp, NOT_VALID); wp->w_redr_status = TRUE; } #endif void win_comp_scroll(wp) win_T *wp; { wp->w_p_scr = ((unsigned)wp->w_height >> 1); if (wp->w_p_scr == 0) wp->w_p_scr = 1; } /* * command_height: called whenever p_ch has been changed */ void command_height(old_p_ch) long old_p_ch; { #ifdef FEAT_WINDOWS int h; frame_T *frp; /* When passed a negative value use the value of p_ch that we remembered. * This is needed for when the GUI starts up, we can't be sure in what * order things happen. */ if (old_p_ch < 0) old_p_ch = p_ch_used; p_ch_used = p_ch; /* Find bottom frame with width of screen. */ frp = lastwin->w_frame; # ifdef FEAT_VERTSPLIT while (frp->fr_width != Columns && frp->fr_parent != NULL) frp = frp->fr_parent; # endif /* Avoid changing the height of a window with 'winfixheight' set. */ while (frp->fr_prev != NULL && frp->fr_layout == FR_LEAF && frp->fr_win->w_p_wfh) frp = frp->fr_prev; if (starting != NO_SCREEN) { cmdline_row = Rows - p_ch; if (p_ch > old_p_ch) /* p_ch got bigger */ { while (p_ch > old_p_ch) { if (frp == NULL) { EMSG(_(e_noroom)); p_ch = old_p_ch; cmdline_row = Rows - p_ch; break; } h = frp->fr_height - frame_minheight(frp, NULL); if (h > p_ch - old_p_ch) h = p_ch - old_p_ch; old_p_ch += h; frame_add_height(frp, -h); frp = frp->fr_prev; } /* Recompute window positions. */ (void)win_comp_pos(); /* clear the lines added to cmdline */ if (full_screen) screen_fill((int)(cmdline_row), (int)Rows, 0, (int)Columns, ' ', ' ', 0); msg_row = cmdline_row; redraw_cmdline = TRUE; return; } if (msg_row < cmdline_row) msg_row = cmdline_row; redraw_cmdline = TRUE; } frame_add_height(frp, (int)(old_p_ch - p_ch)); /* Recompute window positions. */ if (frp != lastwin->w_frame) (void)win_comp_pos(); #else win_setheight((int)(firstwin->w_height + old_p_ch - p_ch)); cmdline_row = Rows - p_ch; #endif } #if defined(FEAT_WINDOWS) || defined(PROTO) /* * Resize frame "frp" to be "n" lines higher (negative for less high). * Also resize the frames it is contained in. */ static void frame_add_height(frp, n) frame_T *frp; int n; { frame_new_height(frp, frp->fr_height + n, FALSE, FALSE); for (;;) { frp = frp->fr_parent; if (frp == NULL) break; frp->fr_height += n; } } /* * Add or remove a status line for the bottom window(s), according to the * value of 'laststatus'. */ void last_status(morewin) int morewin; /* pretend there are two or more windows */ { /* Don't make a difference between horizontal or vertical split. */ last_status_rec(topframe, (p_ls == 2 || (p_ls == 1 && (morewin || lastwin != firstwin)))); } static void last_status_rec(fr, statusline) frame_T *fr; int statusline; { frame_T *fp; win_T *wp; if (fr->fr_layout == FR_LEAF) { wp = fr->fr_win; if (wp->w_status_height != 0 && !statusline) { /* remove status line */ win_new_height(wp, wp->w_height + 1); wp->w_status_height = 0; comp_col(); } else if (wp->w_status_height == 0 && statusline) { /* Find a frame to take a line from. */ fp = fr; while (fp->fr_height <= frame_minheight(fp, NULL)) { if (fp == topframe) { EMSG(_(e_noroom)); return; } /* In a column of frames: go to frame above. If already at * the top or in a row of frames: go to parent. */ if (fp->fr_parent->fr_layout == FR_COL && fp->fr_prev != NULL) fp = fp->fr_prev; else fp = fp->fr_parent; } wp->w_status_height = 1; if (fp != fr) { frame_new_height(fp, fp->fr_height - 1, FALSE, FALSE); frame_fix_height(wp); (void)win_comp_pos(); } else win_new_height(wp, wp->w_height - 1); comp_col(); redraw_all_later(NOT_VALID); } } #ifdef FEAT_VERTSPLIT else if (fr->fr_layout == FR_ROW) { /* vertically split windows, set status line for each one */ for (fp = fr->fr_child; fp != NULL; fp = fp->fr_next) last_status_rec(fp, statusline); } #endif else { /* horizontally split window, set status line for last one */ for (fp = fr->fr_child; fp->fr_next != NULL; fp = fp->fr_next) ; last_status_rec(fp, statusline); } } #endif /* FEAT_WINDOWS */ #if defined(FEAT_SEARCHPATH) || defined(PROTO) /* * Return the file name under or after the cursor. * * The 'path' option is searched if the file name is not absolute. * The string returned has been alloc'ed and should be freed by the caller. * NULL is returned if the file name or file is not found. * * options: * FNAME_MESS give error messages * FNAME_EXP expand to path * FNAME_HYP check for hypertext link * FNAME_INCL apply "includeexpr" */ char_u * file_name_at_cursor(options, count) int options; long count; { return file_name_in_line(ml_get_curline(), curwin->w_cursor.col, options, count, curbuf->b_ffname); } /* * Return the name of the file under or after ptr[col]. * Otherwise like file_name_at_cursor(). */ char_u * file_name_in_line(line, col, options, count, rel_fname) char_u *line; int col; int options; long count; char_u *rel_fname; /* file we are searching relative to */ { char_u *ptr; int len; /* * search forward for what could be the start of a file name */ ptr = line + col; while (*ptr != NUL && !vim_isfilec(*ptr)) ++ptr; if (*ptr == NUL) /* nothing found */ { if (options & FNAME_MESS) EMSG(_("E446: No file name under cursor")); return NULL; } /* * Search backward for first char of the file name. * Go one char back to ":" before "//" even when ':' is not in 'isfname'. */ while (ptr > line) { #ifdef FEAT_MBYTE if (has_mbyte && (len = (*mb_head_off)(line, ptr - 1)) > 0) ptr -= len + 1; else #endif if (vim_isfilec(ptr[-1]) || ((options & FNAME_HYP) && path_is_url(ptr - 1))) --ptr; else break; } /* * Search forward for the last char of the file name. * Also allow "://" when ':' is not in 'isfname'. */ len = 0; while (vim_isfilec(ptr[len]) || ((options & FNAME_HYP) && path_is_url(ptr + len))) #ifdef FEAT_MBYTE if (has_mbyte) len += (*mb_ptr2len_check)(ptr + len); else #endif ++len; /* * If there is trailing punctuation, remove it. * But don't remove "..", could be a directory name. */ if (len > 2 && vim_strchr((char_u *)".,:;!", ptr[len - 1]) != NULL && ptr[len - 2] != '.') --len; return find_file_name_in_path(ptr, len, options, count, rel_fname); } # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) static char_u *eval_includeexpr __ARGS((char_u *ptr, int len)); static char_u * eval_includeexpr(ptr, len) char_u *ptr; int len; { char_u *res; set_vim_var_string(VV_FNAME, ptr, len); res = eval_to_string_safe(curbuf->b_p_inex, NULL); set_vim_var_string(VV_FNAME, NULL, 0); return res; } #endif /* * Return the name of the file ptr[len] in 'path'. * Otherwise like file_name_at_cursor(). */ char_u * find_file_name_in_path(ptr, len, options, count, rel_fname) char_u *ptr; int len; int options; long count; char_u *rel_fname; /* file we are searching relative to */ { char_u *file_name; int c; # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) char_u *tofree = NULL; if ((options & FNAME_INCL) && *curbuf->b_p_inex != NUL) { tofree = eval_includeexpr(ptr, len); if (tofree != NULL) { ptr = tofree; len = (int)STRLEN(ptr); } } # endif if (options & FNAME_EXP) { file_name = find_file_in_path(ptr, len, options & ~FNAME_MESS, TRUE, rel_fname); # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) /* * If the file could not be found in a normal way, try applying * 'includeexpr' (unless done already). */ if (file_name == NULL && !(options & FNAME_INCL) && *curbuf->b_p_inex != NUL) { tofree = eval_includeexpr(ptr, len); if (tofree != NULL) { ptr = tofree; len = (int)STRLEN(ptr); file_name = find_file_in_path(ptr, len, options & ~FNAME_MESS, TRUE, rel_fname); } } # endif if (file_name == NULL && (options & FNAME_MESS)) { c = ptr[len]; ptr[len] = NUL; EMSG2(_("E447: Can't find file \"%s\" in path"), ptr); ptr[len] = c; } /* Repeat finding the file "count" times. This matters when it * appears several times in the path. */ while (file_name != NULL && --count > 0) { vim_free(file_name); file_name = find_file_in_path(ptr, len, options, FALSE, rel_fname); } } else file_name = vim_strnsave(ptr, len); # if defined(FEAT_FIND_ID) && defined(FEAT_EVAL) vim_free(tofree); # endif return file_name; } #endif /* FEAT_SEARCHPATH */ /* * Check if the "://" of a URL is at the pointer, return URL_SLASH. * Also check for ":\\", which MS Internet Explorer accepts, return * URL_BACKSLASH. */ static int path_is_url(p) char_u *p; { if (STRNCMP(p, "://", (size_t)3) == 0) return URL_SLASH; else if (STRNCMP(p, ":\\\\", (size_t)3) == 0) return URL_BACKSLASH; return 0; } /* * Check if "fname" starts with "name://". Return URL_SLASH if it does. * Return URL_BACKSLASH for "name:\\". * Return zero otherwise. */ int path_with_url(fname) char_u *fname; { char_u *p; for (p = fname; isalpha(*p); ++p) ; return path_is_url(p); } /* * Return TRUE if "name" is a full (absolute) path name or URL. */ int vim_isAbsName(name) char_u *name; { return (path_with_url(name) != 0 || mch_isFullName(name)); } /* * Get absolute file name into buffer 'buf' of length 'len' bytes. * * return FAIL for failure, OK otherwise */ int vim_FullName(fname, buf, len, force) char_u *fname, *buf; int len; int force; { int retval = OK; int url; *buf = NUL; if (fname == NULL) return FAIL; url = path_with_url(fname); if (!url) retval = mch_FullName(fname, buf, len, force); if (url || retval == FAIL) { /* something failed; use the file name (truncate when too long) */ STRNCPY(buf, fname, len); buf[len - 1] = NUL; } #if defined(MACOS_CLASSIC) || defined(OS2) || defined(MSDOS) || defined(MSWIN) slash_adjust(buf); #endif return retval; } /* * Return the minimal number of rows that is needed on the screen to display * the current number of windows. */ int min_rows() { int total; if (firstwin == NULL) /* not initialized yet */ return MIN_LINES; total = 1; /* count the room for the command line */ #ifdef FEAT_WINDOWS total += frame_minheight(topframe, NULL); #else total += 1; /* at least one window should have a line! */ #endif return total; } /* * Return TRUE if there is only one window, not counting a help or preview * window, unless it is the current window. */ int only_one_window() { #ifdef FEAT_WINDOWS int count = 0; win_T *wp; for (wp = firstwin; wp != NULL; wp = wp->w_next) if (!(wp->w_buffer->b_help # ifdef FEAT_QUICKFIX || wp->w_p_pvw # endif ) || wp == curwin) ++count; return (count <= 1); #else return TRUE; #endif } #if defined(FEAT_WINDOWS) || defined(FEAT_AUTOCMD) || defined(PROTO) /* * Correct the cursor line number in other windows. Used after changing the * current buffer, and before applying autocommands. * When "do_curwin" is TRUE, also check current window. */ void check_lnums(do_curwin) int do_curwin; { win_T *wp; #ifdef FEAT_WINDOWS for (wp = firstwin; wp != NULL; wp = wp->w_next) if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) #else wp = curwin; if (do_curwin) #endif { if (wp->w_cursor.lnum > curbuf->b_ml.ml_line_count) wp->w_cursor.lnum = curbuf->b_ml.ml_line_count; if (wp->w_topline > curbuf->b_ml.ml_line_count) wp->w_topline = curbuf->b_ml.ml_line_count; } } #endif #if defined(FEAT_WINDOWS) || defined(PROTO) /* * A snapshot of the window sizes, to restore them after closing the help * window. * Only these fields are used: * fr_layout * fr_width * fr_height * fr_next * fr_child * fr_win (only valid for the old curwin, NULL otherwise) */ static frame_T *snapshot = NULL; /* * Create a snapshot of the current frame sizes. */ static void make_snapshot() { clear_snapshot(); make_snapshot_rec(topframe, &snapshot); } static void make_snapshot_rec(fr, frp) frame_T *fr; frame_T **frp; { *frp = (frame_T *)alloc_clear((unsigned)sizeof(frame_T)); if (*frp == NULL) return; (*frp)->fr_layout = fr->fr_layout; # ifdef FEAT_VERTSPLIT (*frp)->fr_width = fr->fr_width; # endif (*frp)->fr_height = fr->fr_height; if (fr->fr_next != NULL) make_snapshot_rec(fr->fr_next, &((*frp)->fr_next)); if (fr->fr_child != NULL) make_snapshot_rec(fr->fr_child, &((*frp)->fr_child)); if (fr->fr_layout == FR_LEAF && fr->fr_win == curwin) (*frp)->fr_win = curwin; } /* * Remove any existing snapshot. */ static void clear_snapshot() { clear_snapshot_rec(snapshot); snapshot = NULL; } static void clear_snapshot_rec(fr) frame_T *fr; { if (fr != NULL) { clear_snapshot_rec(fr->fr_next); clear_snapshot_rec(fr->fr_child); vim_free(fr); } } /* * Restore a previously created snapshot, if there is any. * This is only done if the screen size didn't change and the window layout is * still the same. */ static void restore_snapshot(close_curwin) int close_curwin; /* closing current window */ { win_T *wp; if (snapshot != NULL # ifdef FEAT_VERTSPLIT && snapshot->fr_width == topframe->fr_width # endif && snapshot->fr_height == topframe->fr_height && check_snapshot_rec(snapshot, topframe) == OK) { wp = restore_snapshot_rec(snapshot, topframe); win_comp_pos(); if (wp != NULL && close_curwin) win_goto(wp); redraw_all_later(CLEAR); } clear_snapshot(); } /* * Check if frames "sn" and "fr" have the same layout, same following frames * and same children. */ static int check_snapshot_rec(sn, fr) frame_T *sn; frame_T *fr; { if (sn->fr_layout != fr->fr_layout || (sn->fr_next == NULL) != (fr->fr_next == NULL) || (sn->fr_child == NULL) != (fr->fr_child == NULL) || (sn->fr_next != NULL && check_snapshot_rec(sn->fr_next, fr->fr_next) == FAIL) || (sn->fr_child != NULL && check_snapshot_rec(sn->fr_child, fr->fr_child) == FAIL)) return FAIL; return OK; } /* * Copy the size of snapshot frame "sn" to frame "fr". Do the same for all * following frames and children. * Returns a pointer to the old current window, or NULL. */ static win_T * restore_snapshot_rec(sn, fr) frame_T *sn; frame_T *fr; { win_T *wp = NULL; win_T *wp2; fr->fr_height = sn->fr_height; # ifdef FEAT_VERTSPLIT fr->fr_width = sn->fr_width; # endif if (fr->fr_layout == FR_LEAF) { frame_new_height(fr, fr->fr_height, FALSE, FALSE); # ifdef FEAT_VERTSPLIT frame_new_width(fr, fr->fr_width, FALSE); # endif wp = sn->fr_win; } if (sn->fr_next != NULL) { wp2 = restore_snapshot_rec(sn->fr_next, fr->fr_next); if (wp2 != NULL) wp = wp2; } if (sn->fr_child != NULL) { wp2 = restore_snapshot_rec(sn->fr_child, fr->fr_child); if (wp2 != NULL) wp = wp2; } return wp; } #endif #if (defined(FEAT_GUI) && defined(FEAT_VERTSPLIT)) || defined(PROTO) /* * Return TRUE if there is any vertically split window. */ int win_hasvertsplit() { frame_T *fr; if (topframe->fr_layout == FR_ROW) return TRUE; if (topframe->fr_layout == FR_COL) for (fr = topframe->fr_child; fr != NULL; fr = fr->fr_next) if (fr->fr_layout == FR_ROW) return TRUE; return FALSE; } #endif