/* vi:set ts=8 sts=4 sw=4 noet: * * 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" static void cmd_with_count(char *cmd, char_u *bufp, size_t bufsize, long Prenum); static void win_init(win_T *newp, win_T *oldp, int flags); static void win_init_some(win_T *newp, win_T *oldp); static void frame_comp_pos(frame_T *topfrp, int *row, int *col); static void frame_setheight(frame_T *curfrp, int height); static void frame_setwidth(frame_T *curfrp, int width); static void win_exchange(long); static void win_rotate(int, int); static void win_totop(int size, int flags); static void win_equal_rec(win_T *next_curwin, int current, frame_T *topfr, int dir, int col, int row, int width, int height); static void trigger_winclosed(win_T *win); static win_T *win_free_mem(win_T *win, int *dirp, tabpage_T *tp); static frame_T *win_altframe(win_T *win, tabpage_T *tp); static tabpage_T *alt_tabpage(void); static win_T *frame2win(frame_T *frp); static int frame_has_win(frame_T *frp, win_T *wp); static void win_fix_scroll(int resize); static void win_fix_cursor(int normal); static void frame_new_height(frame_T *topfrp, int height, int topfirst, int wfh); static int frame_fixed_height(frame_T *frp); static int frame_fixed_width(frame_T *frp); static void frame_add_statusline(frame_T *frp); static void frame_new_width(frame_T *topfrp, int width, int leftfirst, int wfw); static void frame_add_vsep(frame_T *frp); static int frame_minwidth(frame_T *topfrp, win_T *next_curwin); static void frame_fix_width(win_T *wp); static int win_alloc_firstwin(win_T *oldwin); static void new_frame(win_T *wp); static tabpage_T *alloc_tabpage(void); static int leave_tabpage(buf_T *new_curbuf, int trigger_leave_autocmds); static void enter_tabpage(tabpage_T *tp, buf_T *old_curbuf, int trigger_enter_autocmds, int trigger_leave_autocmds); static void frame_fix_height(win_T *wp); static int frame_minheight(frame_T *topfrp, win_T *next_curwin); static int may_open_tabpage(void); static int win_enter_ext(win_T *wp, int flags); static void win_free(win_T *wp, tabpage_T *tp); static void win_append(win_T *after, win_T *wp); static void frame_append(frame_T *after, frame_T *frp); static void frame_insert(frame_T *before, frame_T *frp); static void frame_remove(frame_T *frp); static void win_goto_ver(int up, long count); static void win_goto_hor(int left, long count); static void frame_add_height(frame_T *frp, int n); static void last_status_rec(frame_T *fr, int statusline); static void make_snapshot_rec(frame_T *fr, frame_T **frp); static void clear_snapshot(tabpage_T *tp, int idx); static void clear_snapshot_rec(frame_T *fr); static int check_snapshot_rec(frame_T *sn, frame_T *fr); static win_T *restore_snapshot_rec(frame_T *sn, frame_T *fr); static win_T *get_snapshot_curwin(int idx); static int frame_check_height(frame_T *topfrp, int height); static int frame_check_width(frame_T *topfrp, int width); static win_T *win_alloc(win_T *after, int hidden); #define NOWIN ((win_T *)-1) // non-existing window #define ROWS_AVAIL (Rows - p_ch - tabline_height()) // flags for win_enter_ext() #define WEE_UNDO_SYNC 0x01 #define WEE_CURWIN_INVALID 0x02 #define WEE_TRIGGER_NEW_AUTOCMDS 0x04 #define WEE_TRIGGER_ENTER_AUTOCMDS 0x08 #define WEE_TRIGGER_LEAVE_AUTOCMDS 0x10 #define WEE_ALLOW_PARSE_MESSAGES 0x20 static char *m_onlyone = N_("Already only one window"); // When non-zero splitting a window is forbidden. Used to avoid that nasty // autocommands mess up the window structure. static int split_disallowed = 0; // When non-zero closing a window is forbidden. Used to avoid that nasty // autocommands mess up the window structure. static int close_disallowed = 0; /* * Disallow changing the window layout (split window, close window, move * window). Resizing is still allowed. * Used for autocommands that temporarily use another window and need to * make sure the previously selected window is still there. * Must be matched with exactly one call to window_layout_unlock()! */ static void window_layout_lock(void) { ++split_disallowed; ++close_disallowed; } static void window_layout_unlock(void) { --split_disallowed; --close_disallowed; } /* * When the window layout cannot be changed give an error and return TRUE. * "cmd" indicates the action being performed and is used to pick the relevant * error message. */ int window_layout_locked(enum CMD_index cmd) { if (split_disallowed > 0 || close_disallowed > 0) { if (close_disallowed == 0 && cmd == CMD_tabnew) emsg(_(e_cannot_split_window_when_closing_buffer)); else emsg(_(e_not_allowed_to_change_window_layout_in_this_autocmd)); return TRUE; } return FALSE; } // #define WIN_DEBUG #ifdef WIN_DEBUG /* * Call this method to log the current window layout. */ static void log_frame_layout(frame_T *frame) { ch_log(NULL, "layout %s, wi: %d, he: %d, wwi: %d, whe: %d, id: %d", frame->fr_layout == FR_LEAF ? "LEAF" : frame->fr_layout == FR_ROW ? "ROW" : "COL", frame->fr_width, frame->fr_height, frame->fr_win == NULL ? -1 : frame->fr_win->w_width, frame->fr_win == NULL ? -1 : frame->fr_win->w_height, frame->fr_win == NULL ? -1 : frame->fr_win->w_id); if (frame->fr_child != NULL) { ch_log(NULL, "children"); log_frame_layout(frame->fr_child); if (frame->fr_next != NULL) ch_log(NULL, "END of children"); } if (frame->fr_next != NULL) log_frame_layout(frame->fr_next); } #endif /* * Return the current window, unless in the cmdline window and "prevwin" is * set, then return "prevwin". */ win_T * prevwin_curwin(void) { // In cmdwin, the alternative buffer should be used. return is_in_cmdwin() && prevwin != NULL ? prevwin : curwin; } /* * All CTRL-W window commands are handled here, called from normal_cmd(). */ void do_window( int nchar, long Prenum, int xchar) // extra char from ":wincmd gx" or NUL { long Prenum1; win_T *wp; char_u *ptr; linenr_T lnum = -1; #ifdef FEAT_FIND_ID int type = FIND_DEFINE; int len; #endif char_u cbuf[40]; if (ERROR_IF_ANY_POPUP_WINDOW) return; #define CHECK_CMDWIN \ do { \ if (cmdwin_type != 0) \ { \ emsg(_(e_invalid_in_cmdline_window)); \ return; \ } \ } while (0) Prenum1 = Prenum == 0 ? 1 : Prenum; switch (nchar) { // split current window in two parts, horizontally case 'S': case Ctrl_S: case 's': CHECK_CMDWIN; reset_VIsual_and_resel(); // stop Visual mode // When splitting the quickfix window open a new buffer in it, // don't replicate the quickfix buffer. if (bt_quickfix(curbuf)) goto newwindow; #ifdef FEAT_GUI need_mouse_correct = TRUE; #endif (void)win_split((int)Prenum, 0); break; // split current window in two parts, vertically case Ctrl_V: case 'v': CHECK_CMDWIN; reset_VIsual_and_resel(); // stop Visual mode // When splitting the quickfix window open a new buffer in it, // don't replicate the quickfix buffer. if (bt_quickfix(curbuf)) goto newwindow; #ifdef FEAT_GUI need_mouse_correct = TRUE; #endif (void)win_split((int)Prenum, WSP_VERT); break; // split current window and edit alternate file case Ctrl_HAT: case '^': CHECK_CMDWIN; reset_VIsual_and_resel(); // stop Visual mode if (buflist_findnr(Prenum == 0 ? curwin->w_alt_fnum : Prenum) == NULL) { if (Prenum == 0) emsg(_(e_no_alternate_file)); else semsg(_(e_buffer_nr_not_found), Prenum); break; } if (!curbuf_locked() && win_split(0, 0) == OK) (void)buflist_getfile( Prenum == 0 ? curwin->w_alt_fnum : Prenum, (linenr_T)0, GETF_ALT, FALSE); break; // open new window case Ctrl_N: case 'n': CHECK_CMDWIN; reset_VIsual_and_resel(); // stop Visual mode newwindow: if (Prenum) // window height vim_snprintf((char *)cbuf, sizeof(cbuf) - 5, "%ld", Prenum); else cbuf[0] = NUL; #if defined(FEAT_QUICKFIX) if (nchar == 'v' || nchar == Ctrl_V) STRCAT(cbuf, "v"); #endif STRCAT(cbuf, "new"); do_cmdline_cmd(cbuf); break; // quit current window case Ctrl_Q: case 'q': reset_VIsual_and_resel(); // stop Visual mode cmd_with_count("quit", cbuf, sizeof(cbuf), Prenum); do_cmdline_cmd(cbuf); break; // close current window case Ctrl_C: case 'c': reset_VIsual_and_resel(); // stop Visual mode cmd_with_count("close", cbuf, sizeof(cbuf), Prenum); do_cmdline_cmd(cbuf); break; #if defined(FEAT_QUICKFIX) // close preview window case Ctrl_Z: case 'z': CHECK_CMDWIN; reset_VIsual_and_resel(); // stop Visual mode do_cmdline_cmd((char_u *)"pclose"); break; // cursor to preview window case 'P': FOR_ALL_WINDOWS(wp) if (wp->w_p_pvw) break; if (wp == NULL) emsg(_(e_there_is_no_preview_window)); else win_goto(wp); break; #endif // close all but current window case Ctrl_O: case 'o': CHECK_CMDWIN; reset_VIsual_and_resel(); // stop Visual mode cmd_with_count("only", cbuf, sizeof(cbuf), Prenum); do_cmdline_cmd(cbuf); 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 (ONE_WINDOW && 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; win_goto_ver(FALSE, Prenum1); break; // cursor to window above case 'k': case K_UP: case Ctrl_K: CHECK_CMDWIN; win_goto_ver(TRUE, Prenum1); break; // 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; // move window to new tab page case 'T': CHECK_CMDWIN; if (one_window()) msg(_(m_onlyone)); else { tabpage_T *oldtab = curtab; tabpage_T *newtab; // First create a new tab with the window, then go back to // the old tab and close the window there. wp = curwin; if (win_new_tabpage((int)Prenum) == OK && valid_tabpage(oldtab)) { newtab = curtab; goto_tabpage_tp(oldtab, TRUE, TRUE); if (curwin == wp) win_close(curwin, FALSE); if (valid_tabpage(newtab)) goto_tabpage_tp(newtab, TRUE, TRUE); } } break; // 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 (!win_valid(prevwin)) 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; reset_VIsual_and_resel(); // stop Visual mode win_rotate(FALSE, (int)Prenum1); // downwards break; // rotate windows upwards case 'R': CHECK_CMDWIN; reset_VIsual_and_resel(); // stop Visual mode win_rotate(TRUE, (int)Prenum1); // upwards break; // move window to the very top/bottom/left/right case 'K': case 'J': case 'H': case 'L': 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 width and/or height case '=': { int mod = cmdmod.cmod_split & (WSP_VERT | WSP_HOR); #ifdef FEAT_GUI need_mouse_correct = TRUE; #endif win_equal(NULL, FALSE, mod == WSP_VERT ? 'v' : mod == WSP_HOR ? 'h' : '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; // 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; // 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; #endif // FALLTHROUGH case ']': case Ctrl_RSB: CHECK_CMDWIN; // keep Visual mode, can select words to use as a tag if (Prenum) postponed_split = Prenum; else postponed_split = -1; #ifdef FEAT_QUICKFIX if (nchar != '}') g_do_tagpreview = 0; #endif // Execute the command right here, required when "wincmd ]" // was used in a function. do_nv_ident(Ctrl_RSB, NUL); postponed_split = 0; break; // edit file name under cursor in a new window case 'f': case 'F': case Ctrl_F: wingotofile: CHECK_CMDWIN; if (check_text_or_curbuf_locked(NULL)) break; ptr = grab_file_name(Prenum1, &lnum); if (ptr != NULL) { tabpage_T *oldtab = curtab; win_T *oldwin = curwin; #ifdef FEAT_GUI need_mouse_correct = TRUE; #endif setpcmark(); if (win_split(0, 0) == OK) { RESET_BINDING(curwin); if (do_ecmd(0, ptr, NULL, NULL, ECMD_LASTL, ECMD_HIDE, NULL) == FAIL) { // Failed to open the file, close the window // opened for it. win_close(curwin, FALSE); goto_tabpage_win(oldtab, oldwin); } else if (nchar == 'F' && lnum >= 0) { curwin->w_cursor.lnum = lnum; check_cursor_lnum(); beginline(BL_SOL | BL_FIX); } } vim_free(ptr); } break; #ifdef FEAT_FIND_ID // Go to the first occurrence 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; // Make a copy, if the line was changed it will be freed. ptr = vim_strnsave(ptr, len); if (ptr == NULL) break; find_pattern_in_path(ptr, 0, len, TRUE, Prenum == 0 ? TRUE : FALSE, type, Prenum1, ACTION_SPLIT, (linenr_T)1, (linenr_T)MAXLNUM); vim_free(ptr); curwin->w_set_curswant = TRUE; break; #endif // Quickfix window only: view the result under the cursor in a new split. #if defined(FEAT_QUICKFIX) case K_KENTER: case CAR: if (bt_quickfix(curbuf)) qf_view_result(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 = plain_vgetc(); LANGMAP_ADJUST(xchar, TRUE); --no_mapping; --allow_keys; (void)add_to_showcmd(xchar); switch (xchar) { #if defined(FEAT_QUICKFIX) case '}': xchar = Ctrl_RSB; if (Prenum) g_do_tagpreview = Prenum; else g_do_tagpreview = p_pvh; #endif // FALLTHROUGH case ']': case Ctrl_RSB: // keep Visual mode, can select words to use as a tag 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); postponed_split = 0; break; case 'f': // CTRL-W gf: "gf" in a new tab page case 'F': // CTRL-W gF: "gF" in a new tab page cmdmod.cmod_tab = tabpage_index(curtab) + 1; nchar = xchar; goto wingotofile; case 't': // CTRL-W gt: go to next tab page goto_tabpage((int)Prenum); break; case 'T': // CTRL-W gT: go to previous tab page goto_tabpage(-(int)Prenum1); break; case TAB: // CTRL-W g: go to last used tab page if (goto_tabpage_lastused() == FAIL) beep_flush(); break; default: beep_flush(); break; } break; default: beep_flush(); break; } } /* * Figure out the address type for ":wincmd". */ void get_wincmd_addr_type(char_u *arg, exarg_T *eap) { switch (*arg) { case 'S': case Ctrl_S: case 's': case Ctrl_N: case 'n': case 'j': case Ctrl_J: case 'k': case Ctrl_K: case 'T': case Ctrl_R: case 'r': case 'R': case 'K': case 'J': case '+': case '-': case Ctrl__: case '_': case '|': case ']': case Ctrl_RSB: case 'g': case Ctrl_G: case Ctrl_V: case 'v': case 'h': case Ctrl_H: case 'l': case Ctrl_L: case 'H': case 'L': case '>': case '<': #if defined(FEAT_QUICKFIX) case '}': #endif case 'f': case 'F': case Ctrl_F: #ifdef FEAT_FIND_ID case 'i': case Ctrl_I: case 'd': case Ctrl_D: #endif // window size or any count eap->addr_type = ADDR_OTHER; break; case Ctrl_HAT: case '^': // buffer number eap->addr_type = ADDR_BUFFERS; break; case Ctrl_Q: case 'q': case Ctrl_C: case 'c': case Ctrl_O: case 'o': case Ctrl_W: case 'w': case 'W': case 'x': case Ctrl_X: // window number eap->addr_type = ADDR_WINDOWS; break; #if defined(FEAT_QUICKFIX) case Ctrl_Z: case 'z': case 'P': #endif case 't': case Ctrl_T: case 'b': case Ctrl_B: case 'p': case Ctrl_P: case '=': case CAR: // no count eap->addr_type = ADDR_NONE; break; } } static void cmd_with_count( char *cmd, char_u *bufp, size_t bufsize, long Prenum) { if (Prenum > 0) vim_snprintf((char *)bufp, bufsize, "%s %ld", cmd, Prenum); else STRCPY(bufp, cmd); } /* * If "split_disallowed" is set give an error and return FAIL. * Otherwise return OK. */ static int check_split_disallowed(void) { if (split_disallowed > 0) { emsg(_(e_cant_split_window_while_closing_another)); return FAIL; } if (curwin->w_buffer->b_locked_split) { emsg(_(e_cannot_split_window_when_closing_buffer)); return FAIL; } return OK; } /* * 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(int size, int flags) { if (ERROR_IF_ANY_POPUP_WINDOW) return FAIL; if (check_split_disallowed() == FAIL) return FAIL; // When the ":tab" modifier was used open a new tab page instead. if (may_open_tabpage() == OK) return OK; // Add flags from ":vertical", ":topleft" and ":botright". flags |= cmdmod.cmod_split; if ((flags & WSP_TOP) && (flags & WSP_BOT)) { emsg(_(e_cant_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(SNAP_HELP_IDX); else clear_snapshot(curtab, SNAP_HELP_IDX); return win_split_ins(size, flags, NULL, 0); } /* * When "new_wp" is NULL: split the current window in two. * When "new_wp" is not NULL: insert this window at the far * top/left/right/bottom. * Return FAIL for failure, OK otherwise. */ int win_split_ins( int size, int flags, win_T *new_wp, int dir) { win_T *wp = new_wp; 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, *frp2, *prevfrp; int before; int minheight; int wmh1; int did_set_fraction = FALSE; 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 (ONE_WINDOW && p_ls == 1 && oldwin->w_status_height == 0) { if (VISIBLE_HEIGHT(oldwin) <= p_wmh && new_wp == NULL) { emsg(_(e_not_enough_room)); return FAIL; } need_status = STATUS_HEIGHT; } #ifdef FEAT_GUI // May be needed for the scrollbars that are going to change. if (gui.in_use) out_flush(); #endif if (flags & WSP_VERT) { int wmw1; int minwidth; layout = FR_ROW; /* * Check if we are able to split the current window and compute its * width. */ // Current window requires at least 1 space. wmw1 = (p_wmw == 0 ? 1 : p_wmw); needed = wmw1 + 1; if (flags & WSP_ROOM) needed += p_wiw - wmw1; if (flags & (WSP_BOT | WSP_TOP)) { minwidth = frame_minwidth(topframe, NOWIN); available = topframe->fr_width; needed += minwidth; } else if (p_ea) { minwidth = frame_minwidth(oldwin->w_frame, NOWIN); prevfrp = oldwin->w_frame; for (frp = oldwin->w_frame->fr_parent; frp != NULL; frp = frp->fr_parent) { if (frp->fr_layout == FR_ROW) FOR_ALL_FRAMES(frp2, frp->fr_child) if (frp2 != prevfrp) minwidth += frame_minwidth(frp2, NOWIN); prevfrp = frp; } available = topframe->fr_width; needed += minwidth; } else { minwidth = frame_minwidth(oldwin->w_frame, NOWIN); available = oldwin->w_frame->fr_width; needed += minwidth; } if (available < needed && new_wp == NULL) { emsg(_(e_not_enough_room)); return FAIL; } if (new_size == 0) new_size = oldwin->w_width / 2; if (new_size > available - minwidth - 1) new_size = available - minwidth - 1; if (new_size < wmw1) new_size = wmw1; // if it doesn't fit in the current window, need win_equal() if (oldwin->w_width - new_size - 1 < p_wmw) do_equal = TRUE; // We don't like to take lines for the new window from a // 'winfixwidth' window. Take them from a window to the left or right // instead, if possible. Add one for the separator. if (oldwin->w_p_wfw) win_setwidth_win(oldwin->w_width + new_size + 1, oldwin); // Only make all windows the same width if one of them (except oldwin) // is wider than one of the split windows. if (!do_equal && p_ea && size == 0 && *p_ead != 'v' && oldwin->w_frame->fr_parent != NULL) { frp = oldwin->w_frame->fr_parent->fr_child; while (frp != NULL) { if (frp->fr_win != oldwin && frp->fr_win != NULL && (frp->fr_win->w_width > new_size || frp->fr_win->w_width > oldwin->w_width - new_size - 1)) { do_equal = TRUE; break; } frp = frp->fr_next; } } } else { layout = FR_COL; /* * Check if we are able to split the current window and compute its * height. */ // Current window requires at least 1 space. wmh1 = (p_wmh == 0 ? 1 : p_wmh) + WINBAR_HEIGHT(curwin); needed = wmh1 + STATUS_HEIGHT; if (flags & WSP_ROOM) needed += p_wh - wmh1; if (flags & (WSP_BOT | WSP_TOP)) { minheight = frame_minheight(topframe, NOWIN) + need_status; available = topframe->fr_height; needed += minheight; } else if (p_ea) { minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; prevfrp = oldwin->w_frame; for (frp = oldwin->w_frame->fr_parent; frp != NULL; frp = frp->fr_parent) { if (frp->fr_layout == FR_COL) FOR_ALL_FRAMES(frp2, frp->fr_child) if (frp2 != prevfrp) minheight += frame_minheight(frp2, NOWIN); prevfrp = frp; } available = topframe->fr_height; needed += minheight; } else { minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; available = oldwin->w_frame->fr_height; needed += minheight; } if (available < needed && new_wp == NULL) { emsg(_(e_not_enough_room)); 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 > available - minheight - STATUS_HEIGHT) new_size = available - minheight - STATUS_HEIGHT; if (new_size < wmh1) new_size = wmh1; // 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) { // Set w_fraction now so that the cursor keeps the same relative // vertical position using the old height. set_fraction(oldwin); did_set_fraction = TRUE; win_setheight_win(oldwin->w_height + new_size + STATUS_HEIGHT, oldwin); oldwin_height = oldwin->w_height; if (need_status) oldwin_height -= STATUS_HEIGHT; } // Only make all windows the same height if one of them (except oldwin) // is higher than one of the split windows. if (!do_equal && p_ea && size == 0 && *p_ead != 'h' && oldwin->w_frame->fr_parent != NULL) { frp = oldwin->w_frame->fr_parent->fr_child; while (frp != NULL) { if (frp->fr_win != oldwin && frp->fr_win != NULL && (frp->fr_win->w_height > new_size || frp->fr_win->w_height > oldwin_height - new_size - STATUS_HEIGHT)) { do_equal = TRUE; break; } frp = frp->fr_next; } } } /* * 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) && ( (flags & WSP_VERT) ? p_spr : p_sb)))) { // new window below/right of current one if (new_wp == NULL) wp = win_alloc(oldwin, FALSE); else win_append(oldwin, wp); } else { if (new_wp == NULL) wp = win_alloc(oldwin->w_prev, FALSE); else win_append(oldwin->w_prev, wp); } if (new_wp == NULL) { if (wp == NULL) return FAIL; new_frame(wp); if (wp->w_frame == NULL) { win_free(wp, NULL); return FAIL; } // make the contents of the new window the same as the current one win_init(wp, curwin, flags); } /* * Reorganise the tree of frames to insert the new window. */ if (flags & (WSP_TOP | WSP_BOT)) { if ((topframe->fr_layout == FR_COL && (flags & WSP_VERT) == 0) || (topframe->fr_layout == FR_ROW && (flags & WSP_VERT) != 0)) { 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 if (flags & WSP_VERT) before = !p_spr; else 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 = ALLOC_CLEAR_ONE(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_ALL_FRAMES(frp, frp->fr_child) frp->fr_parent = curfrp; } if (new_wp == NULL) frp = wp->w_frame; else frp = new_wp->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); // Set w_fraction now so that the cursor keeps the same relative // vertical position. if (!did_set_fraction) set_fraction(oldwin); wp->w_fraction = oldwin->w_fraction; if (flags & WSP_VERT) { wp->w_p_scr = curwin->w_p_scr; if (need_status) { win_new_height(oldwin, oldwin->w_height - 1); 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 = tabline_height(); win_new_height(wp, curfrp->fr_height - (p_ls > 0) - WINBAR_HEIGHT(wp)); 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; win_new_height(wp, VISIBLE_HEIGHT(oldwin)); 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 win_new_width(wp, 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, FALSE); } else win_new_width(oldwin, 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 { // width and column of new window is same as current window if (flags & (WSP_TOP | WSP_BOT)) { wp->w_wincol = 0; win_new_width(wp, Columns); wp->w_vsep_width = 0; } else { wp->w_wincol = oldwin->w_wincol; win_new_width(wp, oldwin->w_width); wp->w_vsep_width = oldwin->w_vsep_width; } frp->fr_width = curfrp->fr_width; // "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)) { int new_fr_height = curfrp->fr_height - new_size + WINBAR_HEIGHT(wp) ; if (!((flags & WSP_BOT) && p_ls == 0)) new_fr_height -= STATUS_HEIGHT; frame_new_height(curfrp, new_fr_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 + VISIBLE_HEIGHT(oldwin) + STATUS_HEIGHT; wp->w_status_height = oldwin->w_status_height; if (!(flags & WSP_BOT)) oldwin->w_status_height = STATUS_HEIGHT; } if (flags & WSP_BOT) frame_add_statusline(curfrp); frame_fix_height(wp); frame_fix_height(oldwin); } if (flags & (WSP_TOP | WSP_BOT)) (void)win_comp_pos(); // Both windows need redrawing. Update all status lines, in case they // show something related to the window count or position. redraw_win_later(wp, UPD_NOT_VALID); redraw_win_later(oldwin, UPD_NOT_VALID); status_redraw_all(); 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 } /* * equalize the window sizes. */ if (do_equal || dir != 0) win_equal(wp, TRUE, (flags & WSP_VERT) ? (dir == 'v' ? 'b' : 'h') : dir == 'h' ? 'b' : 'v'); else if (*p_spk != 'c' && !is_aucmd_win(wp)) win_fix_scroll(FALSE); // Don't change the window height/width to 'winheight' / 'winwidth' if a // size was given. 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 { i = p_wh; if (size != 0) p_wh = size; } /* * make the new window the current window */ (void)win_enter_ext(wp, WEE_TRIGGER_NEW_AUTOCMDS | WEE_TRIGGER_ENTER_AUTOCMDS | WEE_TRIGGER_LEAVE_AUTOCMDS); if (flags & WSP_VERT) p_wiw = i; else p_wh = i; return OK; } /* * Initialize window "newp" from window "oldp". * Used when splitting a window and when creating a new tab page. * The windows will both edit the same buffer. * WSP_NEWLOC may be specified in flags to prevent the location list from * being copied. */ static void win_init(win_T *newp, win_T *oldp, int flags UNUSED) { int i; newp->w_buffer = oldp->w_buffer; #ifdef FEAT_SYN_HL newp->w_s = &(oldp->w_buffer->b_s); #endif oldp->w_buffer->b_nwindows++; newp->w_cursor = oldp->w_cursor; newp->w_valid = 0; newp->w_curswant = oldp->w_curswant; newp->w_set_curswant = oldp->w_set_curswant; newp->w_topline = oldp->w_topline; #ifdef FEAT_DIFF newp->w_topfill = oldp->w_topfill; #endif newp->w_leftcol = oldp->w_leftcol; newp->w_pcmark = oldp->w_pcmark; newp->w_prev_pcmark = oldp->w_prev_pcmark; newp->w_alt_fnum = oldp->w_alt_fnum; newp->w_wrow = oldp->w_wrow; newp->w_fraction = oldp->w_fraction; newp->w_prev_fraction_row = oldp->w_prev_fraction_row; copy_jumplist(oldp, newp); #ifdef FEAT_QUICKFIX if (flags & WSP_NEWLOC) { // Don't copy the location list. newp->w_llist = NULL; newp->w_llist_ref = NULL; } else copy_loclist_stack(oldp, newp); #endif newp->w_localdir = (oldp->w_localdir == NULL) ? NULL : vim_strsave(oldp->w_localdir); newp->w_prevdir = (oldp->w_prevdir == NULL) ? NULL : vim_strsave(oldp->w_prevdir); if (*p_spk != 'c') { newp->w_botline = oldp->w_botline; newp->w_prev_height = oldp->w_height - WINBAR_HEIGHT(oldp); newp->w_prev_winrow = oldp->w_winrow + 2 * WINBAR_HEIGHT(oldp); } // copy tagstack and folds for (i = 0; i < oldp->w_tagstacklen; i++) { taggy_T *tag = &newp->w_tagstack[i]; *tag = oldp->w_tagstack[i]; if (tag->tagname != NULL) tag->tagname = vim_strsave(tag->tagname); if (tag->user_data != NULL) tag->user_data = vim_strsave(tag->user_data); } newp->w_tagstackidx = oldp->w_tagstackidx; newp->w_tagstacklen = oldp->w_tagstacklen; // Keep same changelist position in new window. newp->w_changelistidx = oldp->w_changelistidx; #ifdef FEAT_FOLDING copyFoldingState(oldp, newp); #endif win_init_some(newp, oldp); #ifdef FEAT_TERMINAL term_update_wincolor(newp); #endif } /* * Initialize window "newp" from window "old". * Only the essential things are copied. */ static void win_init_some(win_T *newp, win_T *oldp) { // Use the same argument list. newp->w_alist = oldp->w_alist; ++newp->w_alist->al_refcount; newp->w_arg_idx = oldp->w_arg_idx; // copy options from existing window win_copy_options(oldp, newp); } /* * Return TRUE if "win" is a global popup or a popup in the current tab page. */ int win_valid_popup(win_T *win UNUSED) { #ifdef FEAT_PROP_POPUP win_T *wp; FOR_ALL_POPUPWINS(wp) if (wp == win) return TRUE; FOR_ALL_POPUPWINS_IN_TAB(curtab, wp) if (wp == win) return TRUE; #endif return FALSE; } /* * Check if "win" is a pointer to an existing window in the current tab page. */ int win_valid(win_T *win) { win_T *wp; if (win == NULL) return FALSE; FOR_ALL_WINDOWS(wp) if (wp == win) return TRUE; return win_valid_popup(win); } /* * Find window "id" in the current tab page. * Also find popup windows. * Return NULL if not found. */ win_T * win_find_by_id(int id) { win_T *wp; FOR_ALL_WINDOWS(wp) if (wp->w_id == id) return wp; #ifdef FEAT_PROP_POPUP FOR_ALL_POPUPWINS(wp) if (wp->w_id == id) return wp; FOR_ALL_POPUPWINS_IN_TAB(curtab, wp) if (wp->w_id == id) return wp; #endif return NULL; } /* * Check if "win" is a pointer to an existing window in any tab page. */ int win_valid_any_tab(win_T *win) { win_T *wp; tabpage_T *tp; if (win == NULL) return FALSE; FOR_ALL_TABPAGES(tp) { FOR_ALL_WINDOWS_IN_TAB(tp, wp) { if (wp == win) return TRUE; } #ifdef FEAT_PROP_POPUP FOR_ALL_POPUPWINS_IN_TAB(tp, wp) if (wp == win) return TRUE; #endif } return win_valid_popup(win); } /* * Return the number of windows. */ int win_count(void) { win_T *wp; int count = 0; FOR_ALL_WINDOWS(wp) ++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). */ int make_windows( int count, int vertical UNUSED) // split windows vertically if TRUE { int maxcount; int todo; if (vertical) { // Each window 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 { // Each window needs at least 'winminheight' lines and a status line. maxcount = (VISIBLE_HEIGHT(curwin) + 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); /* * Don't execute autocommands while creating the windows. Must do that * when putting the buffers in the windows. */ block_autocmds(); // todo is number of windows left to create for (todo = count - 1; todo > 0; --todo) if (vertical) { if (win_split(curwin->w_width - (curwin->w_width - todo) / (todo + 1) - 1, WSP_VERT | WSP_ABOVE) == FAIL) break; } else { if (win_split(curwin->w_height - (curwin->w_height - todo * STATUS_HEIGHT) / (todo + 1) - STATUS_HEIGHT, WSP_ABOVE) == FAIL) break; } unblock_autocmds(); // return actual number of windows return (count - todo); } /* * Exchange current and next window */ static void win_exchange(long Prenum) { frame_T *frp; frame_T *frp2; win_T *wp; win_T *wp2; int temp; if (ERROR_IF_ANY_POPUP_WINDOW) return; if (ONE_WINDOW) // 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, NULL); frame_remove(curwin->w_frame); win_append(wp->w_prev, curwin); frame_insert(frp, curwin->w_frame); } if (wp != wp2) { win_remove(wp, NULL); 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; temp = curwin->w_vsep_width; curwin->w_vsep_width = wp->w_vsep_width; wp->w_vsep_width = temp; frame_fix_height(curwin); frame_fix_height(wp); frame_fix_width(curwin); frame_fix_width(wp); (void)win_comp_pos(); // recompute window positions if (wp->w_buffer != curbuf) reset_VIsual_and_resel(); else if (VIsual_active) wp->w_cursor = curwin->w_cursor; win_enter(wp, TRUE); redraw_all_later(UPD_NOT_VALID); } /* * 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(int upwards, int count) { win_T *wp1; win_T *wp2; frame_T *frp; int n; if (ONE_WINDOW) // nothing to do { beep_flush(); return; } #ifdef FEAT_GUI need_mouse_correct = TRUE; #endif // Check if all frames in this row/col have one window. FOR_ALL_FRAMES(frp, curwin->w_frame->fr_parent->fr_child) if (frp->fr_win == NULL) { emsg(_(e_cannot_rotate_when_another_window_is_split)); return; } 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, NULL); 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, NULL); 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); 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); // recompute w_winrow and w_wincol for all windows (void)win_comp_pos(); } redraw_all_later(UPD_NOT_VALID); } /* * Move the current window to the very top/bottom/left/right of the screen. */ static void win_totop(int size, int flags) { int dir; int height = curwin->w_height; if (ONE_WINDOW) { beep_flush(); return; } if (check_split_disallowed() == FAIL) return; // Remove the window and frame from the tree of frames. (void)winframe_remove(curwin, &dir, NULL); win_remove(curwin, NULL); 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) // When 'guioptions' includes 'L' or 'R' may have to remove or add // scrollbars. Have to update them anyway. gui_may_update_scrollbars(); #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(win_T *win1, win_T *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) { if (win1->w_frame->fr_parent != win2->w_frame->fr_parent) { iemsg("INTERNAL: trying to move a window into another frame"); return; } // may need to 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; if (win1->w_prev->w_vsep_width == 1) { // Remove the vertical separator from the last-but-one window, // add it to the last window. Adjust the frame widths. win1->w_prev->w_vsep_width = 0; win1->w_prev->w_frame->fr_width -= 1; win1->w_vsep_width = 1; win1->w_frame->fr_width += 1; } } else if (win2 == lastwin) { height = win1->w_status_height; win1->w_status_height = win2->w_status_height; win2->w_status_height = height; if (win1->w_vsep_width == 1) { // Remove the vertical separator from win1, add it to the last // window, win2. Adjust the frame widths. win2->w_vsep_width = 1; win2->w_frame->fr_width += 1; win1->w_vsep_width = 0; win1->w_frame->fr_width -= 1; } } win_remove(win1, NULL); 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(UPD_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( 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) dir = *p_ead; win_equal_rec(next_curwin == NULL ? curwin : next_curwin, current, topframe, dir, 0, tabline_height(), (int)Columns, topframe->fr_height); if (*p_spk != 'c' && !is_aucmd_win(next_curwin)) win_fix_scroll(TRUE); } /* * 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( 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 || topfr->fr_width != width || topfr->fr_win->w_wincol != col ) { topfr->fr_win->w_winrow = row; frame_new_height(topfr, height, FALSE, FALSE); topfr->fr_win->w_wincol = col; frame_new_width(topfr, width, FALSE, FALSE); redraw_all_later(UPD_NOT_VALID); } } 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); has_next_curwin = frame_has_win(topfr, next_curwin); /* * Compute width for "next_curwin" window and room available for * other windows. * "m" is the minimal width when counting p_wiw for "next_curwin". */ m = frame_minwidth(topfr, next_curwin); room = width - m; if (room < 0) { next_curwin_size = p_wiw + room; room = 0; } else { next_curwin_size = -1; FOR_ALL_FRAMES(fr, topfr->fr_child) { if (!frame_fixed_width(fr)) continue; // If 'winfixwidth' set keep the window width if possible. // Watch out for this window being the next_curwin. n = frame_minwidth(fr, NOWIN); new_size = fr->fr_width; if (frame_has_win(fr, next_curwin)) { room += p_wiw - p_wmw; next_curwin_size = 0; if (new_size < p_wiw) new_size = p_wiw; } else // These windows don't use up room. totwincount -= (n + (fr->fr_next == NULL ? extra_sep : 0)) / (p_wmw + 1); room -= new_size - n; if (room < 0) { new_size += room; room = 0; } fr->fr_newwidth = 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_wiw) { // Can make all windows wider than 'winwidth', spread // the room equally. next_curwin_size = (room + p_wiw + (totwincount - 1) * p_wmw + (totwincount - 1)) / totwincount; room -= next_curwin_size - p_wiw; } else next_curwin_size = p_wiw; } } if (has_next_curwin) --totwincount; // don't count curwin } FOR_ALL_FRAMES(fr, topfr->fr_child) { 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 if (frame_fixed_width(fr)) { new_size = fr->fr_newwidth; wincount = 0; // doesn't count as a sizeable window } 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 (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_wiw - (m - n); if (next_curwin_size < 0) next_curwin_size = 0; 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 != '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, height); col += new_size; width -= new_size; totwincount -= wincount; } } else // topfr->fr_layout == FR_COL { topfr->fr_width = width; 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 than 'winheight', use all space for the // current window. next_curwin_size = p_wh + room; room = 0; } else { next_curwin_size = -1; FOR_ALL_FRAMES(fr, topfr->fr_child) { if (!frame_fixed_height(fr)) continue; // If 'winfixheight' set keep the window height if // possible. // Watch out for this window being the next_curwin. 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) { // can make all windows higher than 'winheight', // spread the room equally. next_curwin_size = (room + p_wh + (totwincount - 1) * 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_ALL_FRAMES(fr, topfr->fr_child) { 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; } } } #ifdef FEAT_JOB_CHANNEL static void leaving_window(win_T *win) { // Only matters for a prompt window. if (!bt_prompt(win->w_buffer)) return; // When leaving a prompt window stop Insert mode and perhaps restart // it when entering that window again. win->w_buffer->b_prompt_insert = restart_edit; if (restart_edit != 0 && mode_displayed) clear_cmdline = TRUE; // unshow mode later restart_edit = NUL; // When leaving the window (or closing the window) was done from a // callback we need to break out of the Insert mode loop and restart Insert // mode when entering the window again. if (State & MODE_INSERT) { stop_insert_mode = TRUE; if (win->w_buffer->b_prompt_insert == NUL) win->w_buffer->b_prompt_insert = 'A'; } } void entering_window(win_T *win) { // Only matters for a prompt window. if (!bt_prompt(win->w_buffer)) return; // When switching to a prompt buffer that was in Insert mode, don't stop // Insert mode, it may have been set in leaving_window(). if (win->w_buffer->b_prompt_insert != NUL) stop_insert_mode = FALSE; // When entering the prompt window restart Insert mode if we were in Insert // mode when we left it and not already in Insert mode. if ((State & MODE_INSERT) == 0) restart_edit = win->w_buffer->b_prompt_insert; } #endif static void win_init_empty(win_T *wp) { redraw_win_later(wp, UPD_NOT_VALID); wp->w_lines_valid = 0; wp->w_cursor.lnum = 1; wp->w_curswant = wp->w_cursor.col = 0; wp->w_cursor.coladd = 0; 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; #if defined(FEAT_SYN_HL) || defined(FEAT_SPELL) wp->w_s = &wp->w_buffer->b_s; #endif #ifdef FEAT_TERMINAL term_reset_wincolor(wp); #endif } /* * Init the current window "curwin". * Called when a new file is being edited. */ void curwin_init(void) { win_init_empty(curwin); } /* * Close all windows for buffer "buf". */ void close_windows( buf_T *buf, int keep_curwin) // don't close "curwin" { win_T *wp; tabpage_T *tp, *nexttp; int count = tabpage_index(NULL); ++RedrawingDisabled; for (wp = firstwin; wp != NULL && !ONE_WINDOW; ) { if (wp->w_buffer == buf && (!keep_curwin || wp != curwin) && !(wp->w_closing || wp->w_buffer->b_locked > 0)) { if (win_close(wp, FALSE) == FAIL) // If closing the window fails give up, to avoid looping // forever. break; // Start all over, autocommands may change the window layout. wp = firstwin; } else wp = wp->w_next; } // Also check windows in other tab pages. for (tp = first_tabpage; tp != NULL; tp = nexttp) { nexttp = tp->tp_next; if (tp != curtab) FOR_ALL_WINDOWS_IN_TAB(tp, wp) if (wp->w_buffer == buf && !(wp->w_closing || wp->w_buffer->b_locked > 0)) { win_close_othertab(wp, FALSE, tp); // Start all over, the tab page may be closed and // autocommands may change the window layout. nexttp = first_tabpage; break; } } --RedrawingDisabled; if (count != tabpage_index(NULL)) apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); } /* * Return TRUE if the current window is the only window that exists (ignoring * "aucmd_win[]"). * Returns FALSE if there is a window, possibly in another tab page. */ static int last_window(void) { return (one_window() && first_tabpage->tp_next == NULL); } /* * Return TRUE if there is only one window other than "aucmd_win[]" in the * current tab page. */ int one_window(void) { win_T *wp; int seen_one = FALSE; FOR_ALL_WINDOWS(wp) { if (!is_aucmd_win(wp)) { if (seen_one) return FALSE; seen_one = TRUE; } } return TRUE; } /* * Close the possibly last window in a tab page. * Returns TRUE when the window was closed already. */ static int close_last_window_tabpage( win_T *win, int free_buf, tabpage_T *prev_curtab) { if (!ONE_WINDOW) return FALSE; buf_T *old_curbuf = curbuf; /* * Closing the last window in a tab page. First go to another tab * page and then close the window and the tab page. This avoids that * curwin and curtab are invalid while we are freeing memory, they may * be used in GUI events. * Don't trigger autocommands yet, they may use wrong values, so do * that below. */ goto_tabpage_tp(alt_tabpage(), FALSE, TRUE); // Safety check: Autocommands may have closed the window when jumping // to the other tab page. if (valid_tabpage(prev_curtab) && prev_curtab->tp_firstwin == win) win_close_othertab(win, free_buf, prev_curtab); #ifdef FEAT_JOB_CHANNEL entering_window(curwin); #endif // Since goto_tabpage_tp above did not trigger *Enter autocommands, do // that now. apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf); apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); if (old_curbuf != curbuf) apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); return TRUE; } /* * Close the buffer of "win" and unload it if "action" is DOBUF_UNLOAD. * "action" can also be zero (do nothing) or DOBUF_WIPE. * "abort_if_last" is passed to close_buffer(): abort closing if all other * windows are closed. */ static void win_close_buffer(win_T *win, int action, int abort_if_last) { #ifdef FEAT_SYN_HL // Free independent synblock before the buffer is freed. if (win->w_buffer != NULL) reset_synblock(win); #endif #ifdef FEAT_QUICKFIX // When a quickfix/location list window is closed and the buffer is // displayed in only one window, then unlist the buffer. if (win->w_buffer != NULL && bt_quickfix(win->w_buffer) && win->w_buffer->b_nwindows == 1) win->w_buffer->b_p_bl = FALSE; #endif // Close the link to the buffer. if (win->w_buffer != NULL) { bufref_T bufref; set_bufref(&bufref, curbuf); win->w_closing = TRUE; close_buffer(win, win->w_buffer, action, abort_if_last, TRUE); if (win_valid_any_tab(win)) win->w_closing = FALSE; // Make sure curbuf is valid. It can become invalid if 'bufhidden' is // "wipe". if (!bufref_valid(&bufref)) curbuf = firstbuf; } } /* * Close window "win". Only works for the current tab page. * If "free_buf" is TRUE related buffer may be unloaded. * * Called by :quit, :close, :xit, :wq and findtag(). * Returns FAIL when the window was not closed. */ int win_close(win_T *win, int free_buf) { win_T *wp; int other_buffer = FALSE; int close_curwin = FALSE; int dir; int help_window = FALSE; tabpage_T *prev_curtab = curtab; frame_T *win_frame = win->w_frame->fr_parent; #ifdef FEAT_DIFF int had_diffmode = win->w_p_diff; #endif #ifdef MESSAGE_QUEUE int did_decrement = FALSE; #endif #if defined(FEAT_TERMINAL) && defined(FEAT_PROP_POPUP) // Can close a popup window with a terminal if the job has finished. if (may_close_term_popup() == OK) return OK; #endif if (ERROR_IF_ANY_POPUP_WINDOW) return FAIL; if (last_window()) { emsg(_(e_cannot_close_last_window)); return FAIL; } if (window_layout_locked(CMD_close)) return FAIL; if (win->w_closing || (win->w_buffer != NULL && win->w_buffer->b_locked > 0)) return FAIL; // window is already being closed if (win_unlisted(win)) { emsg(_(e_cannot_close_autocmd_or_popup_window)); return FAIL; } if ((is_aucmd_win(firstwin) || is_aucmd_win(lastwin)) && one_window()) { emsg(_(e_cannot_close_window_only_autocmd_window_would_remain)); return FAIL; } // When closing the last window in a tab page first go to another tab page // and then close the window and the tab page to avoid that curwin and // curtab are invalid while we are freeing memory. if (close_last_window_tabpage(win, free_buf, prev_curtab)) return FAIL; // When closing the help window, try restoring a snapshot after closing // the window. Otherwise clear the snapshot, it's now invalid. if (bt_help(win->w_buffer)) help_window = TRUE; else clear_snapshot(curtab, SNAP_HELP_IDX); if (win == curwin) { #ifdef FEAT_JOB_CHANNEL leaving_window(curwin); #endif /* * Guess which window is going to be the new current window. * This may change because of the autocommands (sigh). */ wp = frame2win(win_altframe(win, NULL)); /* * Be careful: If autocommands delete the window or cause this window * to be the last one left, return now. */ if (wp->w_buffer != curbuf) { reset_VIsual_and_resel(); // stop Visual mode other_buffer = TRUE; win->w_closing = TRUE; apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); if (!win_valid(win)) return FAIL; win->w_closing = FALSE; if (last_window()) return FAIL; } win->w_closing = TRUE; apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); if (!win_valid(win)) return FAIL; win->w_closing = FALSE; if (last_window()) return FAIL; #ifdef FEAT_EVAL // autocmds may abort script processing if (aborting()) return FAIL; #endif } #ifdef FEAT_GUI // Avoid trouble with scrollbars that are going to be deleted in // win_free(). if (gui.in_use) out_flush(); #endif #ifdef FEAT_PROP_POPUP if (popup_win_closed(win) && !win_valid(win)) return FAIL; #endif // Trigger WinClosed just before starting to free window-related resources. trigger_winclosed(win); // autocmd may have freed the window already. if (!win_valid_any_tab(win)) return OK; win_close_buffer(win, free_buf ? DOBUF_UNLOAD : 0, TRUE); if (only_one_window() && win_valid(win) && win->w_buffer == NULL && (last_window() || curtab != prev_curtab || close_last_window_tabpage(win, free_buf, prev_curtab))) { // Autocommands have closed all windows, quit now. Restore // curwin->w_buffer, otherwise writing viminfo may fail. if (curwin->w_buffer == NULL) curwin->w_buffer = curbuf; getout(0); } // Autocommands may have moved to another tab page. if (curtab != prev_curtab && win_valid_any_tab(win) && win->w_buffer == NULL) { // Need to close the window anyway, since the buffer is NULL. // Don't trigger autocmds with a NULL buffer. block_autocmds(); win_close_othertab(win, FALSE, prev_curtab); unblock_autocmds(); return FAIL; } // Autocommands may have closed the window already or closed the only // other window. if (!win_valid(win) || last_window() || close_last_window_tabpage(win, free_buf, prev_curtab)) return FAIL; // Now we are really going to close the window. Disallow any autocommand // to split a window to avoid trouble. // Also bail out of parse_queued_messages() to avoid it tries to update the // screen. ++split_disallowed; #ifdef MESSAGE_QUEUE ++dont_parse_messages; #endif // Free the memory used for the window and get the window that received // the screen space. wp = win_free_mem(win, &dir, NULL); if (help_window) { // Closing the help window moves the cursor back to the current window // of the snapshot. win_T *prev_win = get_snapshot_curwin(SNAP_HELP_IDX); if (win_valid(prev_win)) wp = prev_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)) { /* * If 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; // The cursor position may be invalid if the buffer changed after last // using the window. check_cursor(); } /* * If last window has a status line now and we don't want one, remove the * status line. Do this before win_equal(), because it may change the * height of a window */ last_status(FALSE); if (p_ea && (*p_ead == 'b' || *p_ead == dir)) // If the frame of the closed window contains the new current window, // only resize that frame. Otherwise resize all windows. win_equal(curwin, curwin->w_frame->fr_parent == win_frame, dir); else { win_comp_pos(); if (*p_spk != 'c') win_fix_scroll(FALSE); } if (close_curwin) { // Pass WEE_ALLOW_PARSE_MESSAGES to decrement dont_parse_messages // before autocommands. #ifdef MESSAGE_QUEUE did_decrement = #else (void) #endif win_enter_ext(wp, WEE_CURWIN_INVALID | WEE_TRIGGER_ENTER_AUTOCMDS | WEE_TRIGGER_LEAVE_AUTOCMDS | WEE_ALLOW_PARSE_MESSAGES); if (other_buffer) // careful: after this wp and win may be invalid! apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); } --split_disallowed; #ifdef MESSAGE_QUEUE if (!did_decrement) --dont_parse_messages; #endif // After closing the help window, try restoring the window layout from // before it was opened. if (help_window) restore_snapshot(SNAP_HELP_IDX, close_curwin); #ifdef FEAT_DIFF // If the window had 'diff' set and now there is only one window left in // the tab page with 'diff' set, and "closeoff" is in 'diffopt', then // execute ":diffoff!". if (diffopt_closeoff() && had_diffmode && curtab == prev_curtab) { int diffcount = 0; win_T *dwin; FOR_ALL_WINDOWS(dwin) if (dwin->w_p_diff) ++diffcount; if (diffcount == 1) do_cmdline_cmd((char_u *)"diffoff!"); } #endif #if defined(FEAT_GUI) // 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(UPD_NOT_VALID); return OK; } static void trigger_winclosed(win_T *win) { static int recursive = FALSE; char_u winid[NUMBUFLEN]; if (recursive) return; recursive = TRUE; vim_snprintf((char *)winid, sizeof(winid), "%d", win->w_id); apply_autocmds(EVENT_WINCLOSED, winid, winid, FALSE, win->w_buffer); recursive = FALSE; } /* * Make a snapshot of all the window scroll positions and sizes of the current * tab page. */ void snapshot_windows_scroll_size(void) { win_T *wp; FOR_ALL_WINDOWS(wp) { wp->w_last_topline = wp->w_topline; #ifdef FEAT_DIFF wp->w_last_topfill = wp->w_topfill; #endif wp->w_last_leftcol = wp->w_leftcol; wp->w_last_skipcol = wp->w_skipcol; wp->w_last_width = wp->w_width; wp->w_last_height = wp->w_height; } } static int did_initial_scroll_size_snapshot = FALSE; void may_make_initial_scroll_size_snapshot(void) { if (!did_initial_scroll_size_snapshot) { did_initial_scroll_size_snapshot = TRUE; snapshot_windows_scroll_size(); } } #ifdef FEAT_EVAL /* * Create a dictionary with information about size and scroll changes in a * window. * Returns the dictionary with refcount set to one. * Returns NULL when out of memory. */ static dict_T * make_win_info_dict( int width, int height, int topline, # ifdef FEAT_DIFF int topfill, # endif int leftcol, int skipcol) { dict_T *d = dict_alloc(); if (d == NULL) return NULL; d->dv_refcount = 1; // not actually looping, for breaking out on error while (1) { typval_T tv; tv.v_lock = 0; tv.v_type = VAR_NUMBER; tv.vval.v_number = width; if (dict_add_tv(d, "width", &tv) == FAIL) break; tv.vval.v_number = height; if (dict_add_tv(d, "height", &tv) == FAIL) break; tv.vval.v_number = topline; if (dict_add_tv(d, "topline", &tv) == FAIL) break; #ifdef FEAT_DIFF tv.vval.v_number = topfill; #else tv.vval.v_number = 0; #endif if (dict_add_tv(d, "topfill", &tv) == FAIL) break; tv.vval.v_number = leftcol; if (dict_add_tv(d, "leftcol", &tv) == FAIL) break; tv.vval.v_number = skipcol; if (dict_add_tv(d, "skipcol", &tv) == FAIL) break; return d; } dict_unref(d); return NULL; } #endif // Return values of check_window_scroll_resize(): #define CWSR_SCROLLED 1 // at least one window scrolled #define CWSR_RESIZED 2 // at least one window size changed /* * This function is used for three purposes: * 1. Goes over all windows in the current tab page and returns: * 0 no scrolling and no size changes found * CWSR_SCROLLED at least one window scrolled * CWSR_RESIZED at least one window changed size * CWSR_SCROLLED + CWSR_RESIZED both * "size_count" is set to the nr of windows with size changes. * "first_scroll_win" is set to the first window with any relevant changes. * "first_size_win" is set to the first window with size changes. * * 2. When the first three arguments are NULL and "winlist" is not NULL, * "winlist" is set to the list of window IDs with size changes. * * 3. When the first three arguments are NULL and "v_event" is not NULL, * information about changed windows is added to "v_event". */ static int check_window_scroll_resize( int *size_count, win_T **first_scroll_win, win_T **first_size_win, list_T *winlist UNUSED, dict_T *v_event UNUSED) { int result = 0; #ifdef FEAT_EVAL int listidx = 0; int tot_width = 0; int tot_height = 0; int tot_topline = 0; # ifdef FEAT_DIFF int tot_topfill = 0; # endif int tot_leftcol = 0; int tot_skipcol = 0; #endif win_T *wp; FOR_ALL_WINDOWS(wp) { int size_changed = wp->w_last_width != wp->w_width || wp->w_last_height != wp->w_height; if (size_changed) { result |= CWSR_RESIZED; #ifdef FEAT_EVAL if (winlist != NULL) { // Add this window to the list of changed windows. typval_T tv; tv.v_lock = 0; tv.v_type = VAR_NUMBER; tv.vval.v_number = wp->w_id; list_set_item(winlist, listidx++, &tv); } else #endif if (size_count != NULL) { ++*size_count; if (*first_size_win == NULL) *first_size_win = wp; // For WinScrolled the first window with a size change is used // even when it didn't scroll. if (*first_scroll_win == NULL) *first_scroll_win = wp; } } int scroll_changed = wp->w_last_topline != wp->w_topline #ifdef FEAT_DIFF || wp->w_last_topfill != wp->w_topfill #endif || wp->w_last_leftcol != wp->w_leftcol || wp->w_last_skipcol != wp->w_skipcol; if (scroll_changed) { result |= CWSR_SCROLLED; if (first_scroll_win != NULL && *first_scroll_win == NULL) *first_scroll_win = wp; } #ifdef FEAT_EVAL if ((size_changed || scroll_changed) && v_event != NULL) { // Add info about this window to the v:event dictionary. int width = wp->w_width - wp->w_last_width; int height = wp->w_height - wp->w_last_height; int topline = wp->w_topline - wp->w_last_topline; #ifdef FEAT_DIFF int topfill = wp->w_topfill - wp->w_last_topfill; #endif int leftcol = wp->w_leftcol - wp->w_last_leftcol; int skipcol = wp->w_skipcol - wp->w_last_skipcol; dict_T *d = make_win_info_dict(width, height, topline, #ifdef FEAT_DIFF topfill, #endif leftcol, skipcol); if (d == NULL) break; char winid[NUMBUFLEN]; vim_snprintf(winid, sizeof(winid), "%d", wp->w_id); if (dict_add_dict(v_event, winid, d) == FAIL) { dict_unref(d); break; } --d->dv_refcount; tot_width += abs(width); tot_height += abs(height); tot_topline += abs(topline); #ifdef FEAT_DIFF tot_topfill += abs(topfill); #endif tot_leftcol += abs(leftcol); tot_skipcol += abs(skipcol); } #endif } #ifdef FEAT_EVAL if (v_event != NULL) { dict_T *alldict = make_win_info_dict(tot_width, tot_height, tot_topline, # ifdef FEAT_DIFF tot_topfill, # endif tot_leftcol, tot_skipcol); if (alldict != NULL) { if (dict_add_dict(v_event, "all", alldict) == FAIL) dict_unref(alldict); else --alldict->dv_refcount; } } #endif return result; } /* * Trigger WinScrolled and/or WinResized if any window in the current tab page * scrolled or changed size. */ void may_trigger_win_scrolled_resized(void) { static int recursive = FALSE; int do_resize = has_winresized(); int do_scroll = has_winscrolled(); // Do not trigger WinScrolled or WinResized recursively. Do not trigger // before the initial snapshot of the w_last_ values was made. if (recursive || !(do_scroll || do_resize) || !did_initial_scroll_size_snapshot) return; int size_count = 0; win_T *first_scroll_win = NULL, *first_size_win = NULL; int cwsr = check_window_scroll_resize(&size_count, &first_scroll_win, &first_size_win, NULL, NULL); int trigger_resize = do_resize && size_count > 0; int trigger_scroll = do_scroll && cwsr != 0; if (!trigger_resize && !trigger_scroll) return; // no relevant changes #ifdef FEAT_EVAL list_T *windows_list = NULL; if (trigger_resize) { // Create the list for v:event.windows before making the snapshot. windows_list = list_alloc_with_items(size_count); (void)check_window_scroll_resize(NULL, NULL, NULL, windows_list, NULL); } dict_T *scroll_dict = NULL; if (trigger_scroll) { // Create the dict with entries for v:event before making the snapshot. scroll_dict = dict_alloc(); if (scroll_dict != NULL) { scroll_dict->dv_refcount = 1; (void)check_window_scroll_resize(NULL, NULL, NULL, NULL, scroll_dict); } } #endif // WinScrolled/WinResized are triggered only once, even when multiple // windows scrolled or changed size. Store the current values before // triggering the event, if a scroll or resize happens as a side effect // then WinScrolled/WinResized is triggered for that later. snapshot_windows_scroll_size(); // "curwin" may be different from the actual current window, make // sure it can be restored. window_layout_lock(); recursive = TRUE; // If both are to be triggered do WinResized first. if (trigger_resize) { #ifdef FEAT_EVAL save_v_event_T save_v_event; dict_T *v_event = get_v_event(&save_v_event); if (dict_add_list(v_event, "windows", windows_list) == OK) { dict_set_items_ro(v_event); #endif char_u winid[NUMBUFLEN]; vim_snprintf((char *)winid, sizeof(winid), "%d", first_size_win->w_id); apply_autocmds(EVENT_WINRESIZED, winid, winid, FALSE, first_size_win->w_buffer); #ifdef FEAT_EVAL } restore_v_event(v_event, &save_v_event); #endif } if (trigger_scroll #ifdef FEAT_EVAL && scroll_dict != NULL #endif ) { #ifdef FEAT_EVAL save_v_event_T save_v_event; dict_T *v_event = get_v_event(&save_v_event); // Move the entries from scroll_dict to v_event. dict_extend(v_event, scroll_dict, (char_u *)"move", NULL); dict_set_items_ro(v_event); dict_unref(scroll_dict); #endif char_u winid[NUMBUFLEN]; vim_snprintf((char *)winid, sizeof(winid), "%d", first_scroll_win->w_id); apply_autocmds(EVENT_WINSCROLLED, winid, winid, FALSE, first_scroll_win->w_buffer); #ifdef FEAT_EVAL restore_v_event(v_event, &save_v_event); #endif } recursive = FALSE; window_layout_unlock(); } /* * Close window "win" in tab page "tp", which is not the current tab page. * This may be the last window in that tab page and result in closing the tab, * thus "tp" may become invalid! * Caller must check if buffer is hidden and whether the tabline needs to be * updated. */ void win_close_othertab(win_T *win, int free_buf, tabpage_T *tp) { win_T *wp; int dir; tabpage_T *ptp = NULL; int free_tp = FALSE; // Get here with win->w_buffer == NULL when win_close() detects the tab // page changed. if (win->w_closing || (win->w_buffer != NULL && win->w_buffer->b_locked > 0)) return; // window is already being closed // Trigger WinClosed just before starting to free window-related resources. trigger_winclosed(win); // autocmd may have freed the window already. if (!win_valid_any_tab(win)) return; if (win->w_buffer != NULL) // Close the link to the buffer. close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, FALSE, TRUE); // Careful: Autocommands may have closed the tab page or made it the // current tab page. for (ptp = first_tabpage; ptp != NULL && ptp != tp; ptp = ptp->tp_next) ; if (ptp == NULL || tp == curtab) { // If the buffer was removed from the window we have to give it any // buffer. if (win_valid_any_tab(win) && win->w_buffer == NULL) { win->w_buffer = firstbuf; ++firstbuf->b_nwindows; win_init_empty(win); } return; } // Autocommands may have closed the window already. for (wp = tp->tp_firstwin; wp != NULL && wp != win; wp = wp->w_next) ; if (wp == NULL) return; // When closing the last window in a tab page remove the tab page. if (tp->tp_firstwin == tp->tp_lastwin) { int h = tabline_height(); if (tp == first_tabpage) first_tabpage = tp->tp_next; else { for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tp; ptp = ptp->tp_next) ; if (ptp == NULL) { internal_error("win_close_othertab()"); return; } ptp->tp_next = tp->tp_next; } free_tp = TRUE; redraw_tabline = TRUE; if (h != tabline_height()) shell_new_rows(); } // Free the memory used for the window. win_free_mem(win, &dir, tp); if (free_tp) free_tabpage(tp); } /* * Free the memory used for a window. * Returns a pointer to the window that got the freed up space. */ static win_T * win_free_mem( win_T *win, int *dirp, // set to 'v' or 'h' for direction if 'ea' tabpage_T *tp) // tab page "win" is in, NULL for current { frame_T *frp; win_T *wp; tabpage_T *win_tp = tp == NULL ? curtab : tp; // Remove the window and its frame from the tree of frames. frp = win->w_frame; wp = winframe_remove(win, dirp, tp); vim_free(frp); win_free(win, tp); // When deleting the current window in the tab, select a new current // window. if (win == win_tp->tp_curwin) win_tp->tp_curwin = wp; return wp; } #if defined(EXITFREE) || defined(PROTO) void win_free_all(void) { int dummy; // avoid an error for switching tabpage with the cmdline window open cmdwin_type = 0; while (first_tabpage->tp_next != NULL) tabpage_close(TRUE); for (int i = 0; i < AUCMD_WIN_COUNT; ++i) if (aucmd_win[i].auc_win != NULL) { (void)win_free_mem(aucmd_win[i].auc_win, &dummy, NULL); aucmd_win[i].auc_win = NULL; } while (firstwin != NULL) (void)win_free_mem(firstwin, &dummy, NULL); // No window should be used after this. Set curwin to NULL to crash // instead of using freed memory. curwin = NULL; } #endif /* * Remove a window and its frame from the tree of frames. * Returns a pointer to the window that got the freed up space. */ win_T * winframe_remove( win_T *win, int *dirp UNUSED, // set to 'v' or 'h' for direction if 'ea' tabpage_T *tp) // tab page "win" is in, NULL for current { frame_T *frp, *frp2, *frp3; frame_T *frp_close = win->w_frame; win_T *wp; /* * If there is only one window there is nothing to remove. */ if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) return NULL; /* * Remove the window from its frame. */ frp2 = win_altframe(win, tp); wp = frame2win(frp2); // Remove this frame from the list of frames. frame_remove(frp_close); if (frp_close->fr_parent->fr_layout == FR_COL) { // When 'winfixheight' is set, try to find another frame in the column // (as close to the closed frame as possible) to distribute the height // to. if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfh) { frp = frp_close->fr_prev; frp3 = frp_close->fr_next; while (frp != NULL || frp3 != NULL) { if (frp != NULL) { if (!frame_fixed_height(frp)) { frp2 = frp; wp = frame2win(frp2); break; } frp = frp->fr_prev; } if (frp3 != NULL) { if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfh) { frp2 = frp3; wp = frp3->fr_win; break; } frp3 = frp3->fr_next; } } } frame_new_height(frp2, frp2->fr_height + frp_close->fr_height, frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); *dirp = 'v'; } else { // When 'winfixwidth' is set, try to find another frame in the column // (as close to the closed frame as possible) to distribute the width // to. if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfw) { frp = frp_close->fr_prev; frp3 = frp_close->fr_next; while (frp != NULL || frp3 != NULL) { if (frp != NULL) { if (!frame_fixed_width(frp)) { frp2 = frp; wp = frame2win(frp2); break; } frp = frp->fr_prev; } if (frp3 != NULL) { if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfw) { frp2 = frp3; wp = frp3->fr_win; break; } frp3 = frp3->fr_next; } } } frame_new_width(frp2, frp2->fr_width + frp_close->fr_width, frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); *dirp = 'h'; } // 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 = win->w_wincol; 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_ALL_FRAMES(frp, frp2->fr_child) 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; if (topframe->fr_child == frp2) topframe->fr_child = frp; 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; } } if (topframe->fr_child == frp) topframe->fr_child = frp2; vim_free(frp); } } return wp; } /* * Return a pointer to the frame that will receive the empty screen space that * is left over after "win" is closed. * * If 'splitbelow' or 'splitright' is set, the space goes above or to the left * by default. Otherwise, the free space goes below or to the right. The * result is that opening a window and then immediately closing it will * preserve the initial window layout. The 'wfh' and 'wfw' settings are * respected when possible. */ static frame_T * win_altframe( win_T *win, tabpage_T *tp) // tab page "win" is in, NULL for current { frame_T *frp; frame_T *other_fr, *target_fr; if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) return alt_tabpage()->tp_curwin->w_frame; frp = win->w_frame; if (frp->fr_prev == NULL) return frp->fr_next; if (frp->fr_next == NULL) return frp->fr_prev; // By default the next window will get the space that was abandoned by this // window target_fr = frp->fr_next; other_fr = frp->fr_prev; // If this is part of a column of windows and 'splitbelow' is true then the // previous window will get the space. if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_COL && p_sb) { target_fr = frp->fr_prev; other_fr = frp->fr_next; } // If this is part of a row of windows, and 'splitright' is true then the // previous window will get the space. if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW && p_spr) { target_fr = frp->fr_prev; other_fr = frp->fr_next; } // If 'wfh' or 'wfw' is set for the target and not for the alternate // window, reverse the selection. if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW) { if (frame_fixed_width(target_fr) && !frame_fixed_width(other_fr)) target_fr = other_fr; } else { if (frame_fixed_height(target_fr) && !frame_fixed_height(other_fr)) target_fr = other_fr; } return target_fr; } /* * Return the tabpage that will be used if the current one is closed. */ static tabpage_T * alt_tabpage(void) { tabpage_T *tp; // Use the next tab page if possible. if (curtab->tp_next != NULL) return curtab->tp_next; // Find the last but one tab page. for (tp = first_tabpage; tp->tp_next != curtab; tp = tp->tp_next) ; return tp; } /* * Find the left-upper window in frame "frp". */ static win_T * frame2win(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(frame_T *frp, win_T *wp) { frame_T *p; if (frp->fr_layout == FR_LEAF) return frp->fr_win == wp; FOR_ALL_FRAMES(p, frp->fr_child) 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( 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 - WINBAR_HEIGHT(topfrp->fr_win)); } else if (topfrp->fr_layout == FR_ROW) { do { // All frames in this row get the same new height. FOR_ALL_FRAMES(frp, topfrp->fr_child) { 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); } else // fr_layout == FR_COL { // 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(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_ALL_FRAMES(frp, frp->fr_child) 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_ALL_FRAMES(frp, frp->fr_child) if (!frame_fixed_height(frp)) return FALSE; return TRUE; } /* * Return TRUE if width of frame "frp" should not be changed because of * the 'winfixwidth' option. */ static int frame_fixed_width(frame_T *frp) { // frame with one window: fixed width if 'winfixwidth' set. if (frp->fr_win != NULL) return frp->fr_win->w_p_wfw; if (frp->fr_layout == FR_COL) { // The frame is fixed width if one of the frames in the row is fixed // width. FOR_ALL_FRAMES(frp, frp->fr_child) if (frame_fixed_width(frp)) return TRUE; return FALSE; } // frp->fr_layout == FR_ROW: The frame is fixed width if all of the // frames in the row are fixed width. FOR_ALL_FRAMES(frp, frp->fr_child) if (!frame_fixed_width(frp)) return FALSE; return TRUE; } /* * Add a status line to windows at the bottom of "frp". * Note: Does not check if there is room! */ static void frame_add_statusline(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_ALL_FRAMES(frp, frp->fr_child) 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( frame_T *topfrp, int width, int leftfirst, // resize leftmost contained frame first int wfw) // obey 'winfixwidth' when there is a choice; // may cause the width not to be set { 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) { do { // All frames in this column get the same new width. FOR_ALL_FRAMES(frp, topfrp->fr_child) { frame_new_width(frp, width, leftfirst, wfw); if (frp->fr_width > width) { // Could not fit the windows, make whole column wider. width = frp->fr_width; break; } } } while (frp != NULL); } else // fr_layout == FR_ROW { // Complicated case: Resize a row of frames. Resize the rightmost // frame first, frames left of it when needed. frp = topfrp->fr_child; if (wfw) // Advance past frames with one window with 'wfw' set. while (frame_fixed_width(frp)) { frp = frp->fr_next; if (frp == NULL) return; // no frame without 'wfw', give up } if (!leftfirst) { // Find the rightmost frame of this row while (frp->fr_next != NULL) frp = frp->fr_next; if (wfw) // Advance back for frames with one window with 'wfw' set. while (frame_fixed_width(frp)) frp = frp->fr_prev; } 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, wfw); } else { frame_new_width(frp, frp->fr_width + extra_cols, leftfirst, wfw); break; } if (leftfirst) { do frp = frp->fr_next; while (wfw && frp != NULL && frame_fixed_width(frp)); } else { do frp = frp->fr_prev; while (wfw && frp != NULL && frame_fixed_width(frp)); } // Increase "width" if we could not reduce enough frames. if (frp == NULL) width -= extra_cols; } } else if (extra_cols > 0) { // increase width of rightmost frame frame_new_width(frp, frp->fr_width + extra_cols, leftfirst, wfw); } } 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(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_ALL_FRAMES(frp, frp->fr_child) 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(win_T *wp) { wp->w_frame->fr_width = wp->w_width + wp->w_vsep_width; } /* * Set frame height from the window it contains. */ static void frame_fix_height(win_T *wp) { wp->w_frame->fr_height = VISIBLE_HEIGHT(wp) + 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(frame_T *topfrp, win_T *next_curwin) { frame_T *frp; int m; int n; 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; if (topfrp->fr_win == curwin && next_curwin == NULL) { // Current window is minimal one line high and WinBar is // visible. if (p_wmh == 0) ++m; m += WINBAR_HEIGHT(curwin); } } } else if (topfrp->fr_layout == FR_ROW) { // get the minimal height from each frame in this row m = 0; FOR_ALL_FRAMES(frp, topfrp->fr_child) { n = frame_minheight(frp, next_curwin); if (n > m) m = n; } } else { // Add up the minimal heights for all frames in this column. m = 0; FOR_ALL_FRAMES(frp, topfrp->fr_child) m += frame_minheight(frp, next_curwin); } return m; } /* * 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( 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_ALL_FRAMES(frp, topfrp->fr_child) { 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_ALL_FRAMES(frp, topfrp->fr_child) m += frame_minwidth(frp, next_curwin); } return m; } /* * 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( int message, int forceit) // always hide all other windows { win_T *wp; win_T *nextwp; int r; if (one_window()) { if (message && !autocmd_busy) msg(_(m_onlyone)); 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 continue; // Check if it's allowed to abandon this window r = can_abandon(wp->w_buffer, forceit); if (!win_valid(wp)) // autocommands messed wp up { nextwp = firstwin; continue; } if (!r) { #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) if (message && (p_confirm || (cmdmod.cmod_flags & CMOD_CONFIRM)) && p_write) { dialog_changed(wp->w_buffer, FALSE); if (!win_valid(wp)) // autocommands messed wp up { nextwp = firstwin; continue; } } if (bufIsChanged(wp->w_buffer)) #endif continue; } win_close(wp, !buf_hide(wp->w_buffer) && !bufIsChanged(wp->w_buffer)); } if (message && !ONE_WINDOW) emsg(_(e_other_window_contains_changes)); } /* * Store the relevant window pointers for tab page "tp". To be used before * use_tabpage(). */ void unuse_tabpage(tabpage_T *tp) { tp->tp_topframe = topframe; tp->tp_firstwin = firstwin; tp->tp_lastwin = lastwin; tp->tp_curwin = curwin; } /* * Set the relevant pointers to use tab page "tp". May want to call * unuse_tabpage() first. */ void use_tabpage(tabpage_T *tp) { curtab = tp; topframe = curtab->tp_topframe; firstwin = curtab->tp_firstwin; lastwin = curtab->tp_lastwin; curwin = curtab->tp_curwin; } /* * Allocate the first window and put an empty buffer in it. * Called from main(). * Return FAIL when something goes wrong (out of memory). */ int win_alloc_first(void) { if (win_alloc_firstwin(NULL) == FAIL) return FAIL; first_tabpage = alloc_tabpage(); if (first_tabpage == NULL) return FAIL; curtab = first_tabpage; unuse_tabpage(first_tabpage); return OK; } /* * Allocate and init a window that is not a regular window. * This can only be done after the first window is fully initialized, thus it * can't be in win_alloc_first(). */ win_T * win_alloc_popup_win(void) { win_T *wp; wp = win_alloc(NULL, TRUE); if (wp == NULL) return NULL; // We need to initialize options with something, using the current // window makes most sense. win_init_some(wp, curwin); RESET_BINDING(wp); new_frame(wp); return wp; } /* * Initialize window "wp" to display buffer "buf". */ void win_init_popup_win(win_T *wp, buf_T *buf) { wp->w_buffer = buf; ++buf->b_nwindows; win_init_empty(wp); // set cursor and topline to safe values // Make sure w_localdir and globaldir are NULL to avoid a chdir() in // win_enter_ext(). VIM_CLEAR(wp->w_localdir); } /* * Allocate the first window or the first window in a new tab page. * When "oldwin" is NULL create an empty buffer for it. * When "oldwin" is not NULL copy info from it to the new window. * Return FAIL when something goes wrong (out of memory). */ static int win_alloc_firstwin(win_T *oldwin) { curwin = win_alloc(NULL, FALSE); if (curwin == NULL) return FAIL; if (oldwin == NULL) { // Very first window, need to create an empty buffer for it and // initialize from scratch. curbuf = buflist_new(NULL, NULL, 1L, BLN_LISTED); if (curwin == NULL || curbuf == NULL) return FAIL; curwin->w_buffer = curbuf; #ifdef FEAT_SYN_HL curwin->w_s = &(curbuf->b_s); #endif curbuf->b_nwindows = 1; // there is one window curwin->w_alist = &global_alist; curwin_init(); // init current window } else { // First window in new tab page, initialize it from "oldwin". win_init(curwin, oldwin, 0); // We don't want cursor- and scroll-binding in the first window. RESET_BINDING(curwin); } new_frame(curwin); if (curwin->w_frame == NULL) return FAIL; topframe = curwin->w_frame; topframe->fr_width = Columns; topframe->fr_height = Rows - p_ch; return OK; } /* * Create a frame for window "wp". */ static void new_frame(win_T *wp) { frame_T *frp = ALLOC_CLEAR_ONE(frame_T); wp->w_frame = frp; if (frp == NULL) return; frp->fr_layout = FR_LEAF; frp->fr_win = wp; } /* * Initialize the window and frame size to the maximum. */ void win_init_size(void) { firstwin->w_height = ROWS_AVAIL; firstwin->w_prev_height = ROWS_AVAIL; topframe->fr_height = ROWS_AVAIL; firstwin->w_width = Columns; topframe->fr_width = Columns; } /* * Allocate a new tabpage_T and init the values. * Returns NULL when out of memory. */ static tabpage_T * alloc_tabpage(void) { tabpage_T *tp; # ifdef FEAT_GUI int i; # endif tp = ALLOC_CLEAR_ONE(tabpage_T); if (tp == NULL) return NULL; # ifdef FEAT_EVAL // init t: variables tp->tp_vars = dict_alloc_id(aid_newtabpage_tvars); if (tp->tp_vars == NULL) { vim_free(tp); return NULL; } init_var_dict(tp->tp_vars, &tp->tp_winvar, VAR_SCOPE); # endif # ifdef FEAT_GUI for (i = 0; i < 3; i++) tp->tp_prev_which_scrollbars[i] = -1; # endif # ifdef FEAT_DIFF tp->tp_diff_invalid = TRUE; # endif tp->tp_ch_used = p_ch; return tp; } void free_tabpage(tabpage_T *tp) { int idx; # ifdef FEAT_DIFF diff_clear(tp); # endif # ifdef FEAT_PROP_POPUP while (tp->tp_first_popupwin != NULL) popup_close_tabpage(tp, tp->tp_first_popupwin->w_id, TRUE); #endif for (idx = 0; idx < SNAP_COUNT; ++idx) clear_snapshot(tp, idx); #ifdef FEAT_EVAL vars_clear(&tp->tp_vars->dv_hashtab); // free all t: variables hash_init(&tp->tp_vars->dv_hashtab); unref_var_dict(tp->tp_vars); #endif if (tp == lastused_tabpage) lastused_tabpage = NULL; vim_free(tp->tp_localdir); vim_free(tp->tp_prevdir); #ifdef FEAT_PYTHON python_tabpage_free(tp); #endif #ifdef FEAT_PYTHON3 python3_tabpage_free(tp); #endif vim_free(tp); } /* * Create a new Tab page with one window. * It will edit the current buffer, like after ":split". * When "after" is 0 put it just after the current Tab page. * Otherwise put it just before tab page "after". * Return FAIL or OK. */ int win_new_tabpage(int after) { tabpage_T *tp = curtab; tabpage_T *prev_tp = curtab; tabpage_T *newtp; int n; if (cmdwin_type != 0) { emsg(_(e_invalid_in_cmdline_window)); return FAIL; } if (window_layout_locked(CMD_tabnew)) return FAIL; newtp = alloc_tabpage(); if (newtp == NULL) return FAIL; // Remember the current windows in this Tab page. if (leave_tabpage(curbuf, TRUE) == FAIL) { vim_free(newtp); return FAIL; } curtab = newtp; newtp->tp_localdir = (tp->tp_localdir == NULL) ? NULL : vim_strsave(tp->tp_localdir); // Create a new empty window. if (win_alloc_firstwin(tp->tp_curwin) == OK) { // Make the new Tab page the new topframe. if (after == 1) { // New tab page becomes the first one. newtp->tp_next = first_tabpage; first_tabpage = newtp; } else { if (after > 0) { // Put new tab page before tab page "after". n = 2; for (tp = first_tabpage; tp->tp_next != NULL && n < after; tp = tp->tp_next) ++n; } newtp->tp_next = tp->tp_next; tp->tp_next = newtp; } newtp->tp_firstwin = newtp->tp_lastwin = newtp->tp_curwin = curwin; win_init_size(); firstwin->w_winrow = tabline_height(); firstwin->w_prev_winrow = firstwin->w_winrow; win_comp_scroll(curwin); newtp->tp_topframe = topframe; last_status(FALSE); lastused_tabpage = prev_tp; #if defined(FEAT_GUI) // When 'guioptions' includes 'L' or 'R' may have to remove or add // scrollbars. Have to update them anyway. gui_may_update_scrollbars(); #endif #ifdef FEAT_JOB_CHANNEL entering_window(curwin); #endif redraw_all_later(UPD_NOT_VALID); apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); apply_autocmds(EVENT_TABNEW, NULL, NULL, FALSE, curbuf); apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); return OK; } // Failed, get back the previous Tab page enter_tabpage(curtab, curbuf, TRUE, TRUE); return FAIL; } /* * Open a new tab page if ":tab cmd" was used. It will edit the same buffer, * like with ":split". * Returns OK if a new tab page was created, FAIL otherwise. */ static int may_open_tabpage(void) { int n = (cmdmod.cmod_tab == 0) ? postponed_split_tab : cmdmod.cmod_tab; if (n == 0) return FAIL; cmdmod.cmod_tab = 0; // reset it to avoid doing it twice postponed_split_tab = 0; return win_new_tabpage(n); } /* * Create up to "maxcount" tabpages with empty windows. * Returns the number of resulting tab pages. */ int make_tabpages(int maxcount) { int count = maxcount; int todo; // Limit to 'tabpagemax' tabs. if (count > p_tpm) count = p_tpm; /* * Don't execute autocommands while creating the tab pages. Must do that * when putting the buffers in the windows. */ block_autocmds(); for (todo = count - 1; todo > 0; --todo) if (win_new_tabpage(0) == FAIL) break; unblock_autocmds(); // return actual number of tab pages return (count - todo); } /* * Return TRUE when "tpc" points to a valid tab page. */ int valid_tabpage(tabpage_T *tpc) { tabpage_T *tp; FOR_ALL_TABPAGES(tp) if (tp == tpc) return TRUE; return FALSE; } /* * Return TRUE when "tpc" points to a valid tab page and at least one window is * valid. */ int valid_tabpage_win(tabpage_T *tpc) { tabpage_T *tp; win_T *wp; FOR_ALL_TABPAGES(tp) { if (tp == tpc) { FOR_ALL_WINDOWS_IN_TAB(tp, wp) { if (win_valid_any_tab(wp)) return TRUE; } return FALSE; } } // shouldn't happen return FALSE; } /* * Close tabpage "tab", assuming it has no windows in it. * There must be another tabpage or this will crash. */ void close_tabpage(tabpage_T *tab) { tabpage_T *ptp; if (tab == first_tabpage) { first_tabpage = tab->tp_next; ptp = first_tabpage; } else { for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tab; ptp = ptp->tp_next) ; assert(ptp != NULL); ptp->tp_next = tab->tp_next; } goto_tabpage_tp(ptp, FALSE, FALSE); free_tabpage(tab); } /* * Find tab page "n" (first one is 1). Returns NULL when not found. */ tabpage_T * find_tabpage(int n) { tabpage_T *tp; int i = 1; if (n == 0) return curtab; for (tp = first_tabpage; tp != NULL && i != n; tp = tp->tp_next) ++i; return tp; } /* * Get index of tab page "tp". First one has index 1. * When not found returns number of tab pages plus one. */ int tabpage_index(tabpage_T *ftp) { int i = 1; tabpage_T *tp; for (tp = first_tabpage; tp != NULL && tp != ftp; tp = tp->tp_next) ++i; return i; } /* * Prepare for leaving the current tab page. * When autocommands change "curtab" we don't leave the tab page and return * FAIL. * Careful: When OK is returned need to get a new tab page very very soon! */ static int leave_tabpage( buf_T *new_curbuf UNUSED, // what is going to be the new curbuf, // NULL if unknown int trigger_leave_autocmds UNUSED) { tabpage_T *tp = curtab; #ifdef FEAT_JOB_CHANNEL leaving_window(curwin); #endif reset_VIsual_and_resel(); // stop Visual mode if (trigger_leave_autocmds) { if (new_curbuf != curbuf) { apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); if (curtab != tp) return FAIL; } apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); if (curtab != tp) return FAIL; apply_autocmds(EVENT_TABLEAVE, NULL, NULL, FALSE, curbuf); if (curtab != tp) return FAIL; } reset_dragwin(); #if defined(FEAT_GUI) // Remove the scrollbars. They may be added back later. if (gui.in_use) gui_remove_scrollbars(); #endif tp->tp_curwin = curwin; tp->tp_prevwin = prevwin; tp->tp_firstwin = firstwin; tp->tp_lastwin = lastwin; tp->tp_old_Rows = Rows; if (tp->tp_old_Columns != -1) tp->tp_old_Columns = Columns; firstwin = NULL; lastwin = NULL; return OK; } /* * Start using tab page "tp". * Only to be used after leave_tabpage() or freeing the current tab page. * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. */ static void enter_tabpage( tabpage_T *tp, buf_T *old_curbuf UNUSED, int trigger_enter_autocmds, int trigger_leave_autocmds) { int row; int old_off = tp->tp_firstwin->w_winrow; win_T *next_prevwin = tp->tp_prevwin; tabpage_T *last_tab = curtab; use_tabpage(tp); // We would like doing the TabEnter event first, but we don't have a // valid current window yet, which may break some commands. // This triggers autocommands, thus may make "tp" invalid. (void)win_enter_ext(tp->tp_curwin, WEE_CURWIN_INVALID | (trigger_enter_autocmds ? WEE_TRIGGER_ENTER_AUTOCMDS : 0) | (trigger_leave_autocmds ? WEE_TRIGGER_LEAVE_AUTOCMDS : 0)); prevwin = next_prevwin; last_status(FALSE); // status line may appear or disappear row = win_comp_pos(); // recompute w_winrow for all windows #ifdef FEAT_DIFF diff_need_scrollbind = TRUE; #endif // Use the stored value of p_ch, so that it can be different for each tab // page. if (p_ch != curtab->tp_ch_used) clear_cmdline = TRUE; p_ch = curtab->tp_ch_used; // When cmdheight is changed in a tab page with '-', cmdline_row is // changed but p_ch and tp_ch_used are not changed. Thus we also need to // check cmdline_row. if (row < cmdline_row && cmdline_row <= Rows - p_ch) clear_cmdline = TRUE; // If there was a click in a window, it won't be usable for a following // drag. reset_dragwin(); // The tabpage line may have appeared or disappeared, may need to resize // the frames for that. When the Vim window was resized need to update // frame sizes too. if (curtab->tp_old_Rows != Rows || (old_off != firstwin->w_winrow #ifdef FEAT_GUI_TABLINE && !gui_use_tabline() #endif )) shell_new_rows(); if (curtab->tp_old_Columns != Columns) { if (starting == 0) { shell_new_columns(); // update window widths curtab->tp_old_Columns = Columns; } else curtab->tp_old_Columns = -1; // update window widths later } lastused_tabpage = last_tab; #if defined(FEAT_GUI) // When 'guioptions' includes 'L' or 'R' may have to remove or add // scrollbars. Have to update them anyway. gui_may_update_scrollbars(); #endif // Apply autocommands after updating the display, when 'rows' and // 'columns' have been set correctly. if (trigger_enter_autocmds) { apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); if (old_curbuf != curbuf) apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); } redraw_all_later(UPD_NOT_VALID); } /* * Go to tab page "n". For ":tab N" and "Ngt". * When "n" is 9999 go to the last tab page. */ void goto_tabpage(int n) { tabpage_T *tp = NULL; // shut up compiler tabpage_T *ttp; int i; if (text_locked()) { // Not allowed when editing the command line. text_locked_msg(); return; } // If there is only one it can't work. if (first_tabpage->tp_next == NULL) { if (n > 1) beep_flush(); return; } if (n == 0) { // No count, go to next tab page, wrap around end. if (curtab->tp_next == NULL) tp = first_tabpage; else tp = curtab->tp_next; } else if (n < 0) { // "gT": go to previous tab page, wrap around end. "N gT" repeats // this N times. ttp = curtab; for (i = n; i < 0; ++i) { for (tp = first_tabpage; tp->tp_next != ttp && tp->tp_next != NULL; tp = tp->tp_next) ; ttp = tp; } } else if (n == 9999) { // Go to last tab page. for (tp = first_tabpage; tp->tp_next != NULL; tp = tp->tp_next) ; } else { // Go to tab page "n". tp = find_tabpage(n); if (tp == NULL) { beep_flush(); return; } } goto_tabpage_tp(tp, TRUE, TRUE); #ifdef FEAT_GUI_TABLINE if (gui_use_tabline()) gui_mch_set_curtab(tabpage_index(curtab)); #endif } /* * Go to tabpage "tp". * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. * Note: doesn't update the GUI tab. */ void goto_tabpage_tp( tabpage_T *tp, int trigger_enter_autocmds, int trigger_leave_autocmds) { if (trigger_enter_autocmds || trigger_leave_autocmds) CHECK_CMDWIN; // Don't repeat a message in another tab page. set_keep_msg(NULL, 0); skip_win_fix_scroll = TRUE; if (tp != curtab && leave_tabpage(tp->tp_curwin->w_buffer, trigger_leave_autocmds) == OK) { if (valid_tabpage(tp)) enter_tabpage(tp, curbuf, trigger_enter_autocmds, trigger_leave_autocmds); else enter_tabpage(curtab, curbuf, trigger_enter_autocmds, trigger_leave_autocmds); } skip_win_fix_scroll = FALSE; } /* * Go to the last accessed tab page, if there is one. * Return OK or FAIL */ int goto_tabpage_lastused(void) { if (!valid_tabpage(lastused_tabpage)) return FAIL; goto_tabpage_tp(lastused_tabpage, TRUE, TRUE); return OK; } /* * Enter window "wp" in tab page "tp". * Also updates the GUI tab. */ void goto_tabpage_win(tabpage_T *tp, win_T *wp) { goto_tabpage_tp(tp, TRUE, TRUE); if (curtab == tp && win_valid(wp)) { win_enter(wp, TRUE); # ifdef FEAT_GUI_TABLINE if (gui_use_tabline()) gui_mch_set_curtab(tabpage_index(curtab)); # endif } } /* * Move the current tab page to after tab page "nr". */ void tabpage_move(int nr) { int n = 1; tabpage_T *tp, *tp_dst; if (first_tabpage->tp_next == NULL) return; for (tp = first_tabpage; tp->tp_next != NULL && n < nr; tp = tp->tp_next) ++n; if (tp == curtab || (nr > 0 && tp->tp_next != NULL && tp->tp_next == curtab)) return; tp_dst = tp; // Remove the current tab page from the list of tab pages. if (curtab == first_tabpage) first_tabpage = curtab->tp_next; else { FOR_ALL_TABPAGES(tp) if (tp->tp_next == curtab) break; if (tp == NULL) // "cannot happen" return; tp->tp_next = curtab->tp_next; } // Re-insert it at the specified position. if (nr <= 0) { curtab->tp_next = first_tabpage; first_tabpage = curtab; } else { curtab->tp_next = tp_dst->tp_next; tp_dst->tp_next = curtab; } // Need to redraw the tabline. Tab page contents doesn't change. redraw_tabline = TRUE; } /* * 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(win_T *wp) { #ifdef FEAT_CONCEAL win_T *owp = curwin; #endif #ifdef FEAT_PROP_POPUP if (ERROR_IF_ANY_POPUP_WINDOW) return; if (popup_is_popup(wp)) { emsg(_(e_not_allowed_to_enter_popup_window)); return; } #endif if (text_or_buf_locked()) { beep_flush(); return; } if (wp->w_buffer != curbuf) reset_VIsual_and_resel(); else if (VIsual_active) wp->w_cursor = curwin->w_cursor; #ifdef FEAT_GUI need_mouse_correct = TRUE; #endif win_enter(wp, TRUE); #ifdef FEAT_CONCEAL // Conceal cursor line in previous window, unconceal in current window. if (win_valid(owp) && owp->w_p_cole > 0 && !msg_scrolled) redrawWinline(owp, owp->w_cursor.lnum); if (curwin->w_p_cole > 0 && !msg_scrolled) need_cursor_line_redraw = TRUE; #endif } #if defined(FEAT_PERL) || defined(PROTO) /* * Find window number "winnr" (counting top to bottom). */ win_T * win_find_nr(int winnr) { win_T *wp; FOR_ALL_WINDOWS(wp) if (--winnr == 0) break; return wp; } #endif #if ((defined(FEAT_PYTHON) || defined(FEAT_PYTHON3))) || defined(PROTO) /* * Find the tabpage for window "win". */ tabpage_T * win_find_tabpage(win_T *win) { win_T *wp; tabpage_T *tp; FOR_ALL_TAB_WINDOWS(tp, wp) if (wp == win) return tp; return NULL; } #endif /* * Get the above or below neighbor window of the specified window. * up - TRUE for the above neighbor * count - nth neighbor window * Returns the specified window if the neighbor is not found. */ win_T * win_vert_neighbor(tabpage_T *tp, win_T *wp, int up, long count) { frame_T *fr; frame_T *nfr; frame_T *foundfr; #ifdef FEAT_PROP_POPUP if (popup_is_popup(wp)) // popups don't have neighbors. return NULL; #endif foundfr = wp->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 == tp->tp_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 <= wp->w_wincol + wp->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: return foundfr != NULL ? foundfr->fr_win : NULL; } /* * Move to window above or below "count" times. */ static void win_goto_ver( int up, // TRUE to go to win above long count) { win_T *win; #ifdef FEAT_PROP_POPUP if (ERROR_IF_TERM_POPUP_WINDOW) return; #endif win = win_vert_neighbor(curtab, curwin, up, count); if (win != NULL) win_goto(win); } /* * Get the left or right neighbor window of the specified window. * left - TRUE for the left neighbor * count - nth neighbor window * Returns the specified window if the neighbor is not found. */ win_T * win_horz_neighbor(tabpage_T *tp, win_T *wp, int left, long count) { frame_T *fr; frame_T *nfr; frame_T *foundfr; #ifdef FEAT_PROP_POPUP if (popup_is_popup(wp)) // popups don't have neighbors. return NULL; #endif foundfr = wp->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 == tp->tp_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 <= wp->w_winrow + wp->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: return foundfr != NULL ? foundfr->fr_win : NULL; } /* * Move to left or right window. */ static void win_goto_hor( int left, // TRUE to go to left win long count) { win_T *win; #ifdef FEAT_PROP_POPUP if (ERROR_IF_TERM_POPUP_WINDOW) return; #endif win = win_horz_neighbor(curtab, curwin, left, count); if (win != NULL) win_goto(win); } /* * Make window "wp" the current window. */ void win_enter(win_T *wp, int undo_sync) { (void)win_enter_ext(wp, (undo_sync ? WEE_UNDO_SYNC : 0) | WEE_TRIGGER_ENTER_AUTOCMDS | WEE_TRIGGER_LEAVE_AUTOCMDS); } /* * Used after making another window the current one: change directory if * needed. */ static void fix_current_dir(void) { if (curwin->w_localdir != NULL || curtab->tp_localdir != NULL) { char_u *dirname; // Window or tab 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); } if (curwin->w_localdir != NULL) dirname = curwin->w_localdir; else dirname = curtab->tp_localdir; if (mch_chdir((char *)dirname) == 0) { last_chdir_reason = NULL; 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. vim_ignored = mch_chdir((char *)globaldir); VIM_CLEAR(globaldir); last_chdir_reason = NULL; shorten_fnames(TRUE); } } /* * Make window "wp" the current window. * Can be called with "flags" containing WEE_CURWIN_INVALID, which means that * curwin has just been closed and isn't valid. * Returns TRUE when dont_parse_messages was decremented. */ static int win_enter_ext(win_T *wp, int flags) { int other_buffer = FALSE; int curwin_invalid = (flags & WEE_CURWIN_INVALID); int did_decrement = FALSE; if (wp == curwin && curwin_invalid == 0) // nothing to do return FALSE; #ifdef FEAT_JOB_CHANNEL if (curwin_invalid == 0) leaving_window(curwin); #endif if (curwin_invalid == 0 && (flags & WEE_TRIGGER_LEAVE_AUTOCMDS)) { /* * 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 FALSE; } apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); if (!win_valid(wp)) return FALSE; #ifdef FEAT_EVAL // autocmds may abort script processing if (aborting()) return FALSE; #endif } // sync undo before leaving the current buffer if ((flags & WEE_UNDO_SYNC) && curbuf != wp->w_buffer) u_sync(FALSE); // Might need to scroll the old window before switching, e.g., when the // cursor was moved. if (*p_spk == 'c' && curwin_invalid == 0) update_topline(); // 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 == 0) { prevwin = curwin; // remember for CTRL-W p curwin->w_redr_status = TRUE; } curwin = wp; curbuf = wp->w_buffer; check_cursor(); if (!virtual_active()) curwin->w_cursor.coladd = 0; if (*p_spk == 'c') // assume cursor position needs updating changed_line_abv_curs(); else // Make sure the cursor position is valid, either by moving the cursor // or by scrolling the text. win_fix_cursor( get_real_state() & (MODE_NORMAL|MODE_CMDLINE|MODE_TERMINAL)); // Now it is OK to parse messages again, which may be needed in // autocommands. #ifdef MESSAGE_QUEUE if (flags & WEE_ALLOW_PARSE_MESSAGES) { --dont_parse_messages; did_decrement = TRUE; } #endif fix_current_dir(); #ifdef FEAT_JOB_CHANNEL entering_window(curwin); #endif // Careful: autocommands may close the window and make "wp" invalid if (flags & WEE_TRIGGER_NEW_AUTOCMDS) apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf); if (flags & WEE_TRIGGER_ENTER_AUTOCMDS) { apply_autocmds(EVENT_WINENTER, NULL, NULL, FALSE, curbuf); if (other_buffer) apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); } maketitle(); curwin->w_redr_status = TRUE; #ifdef FEAT_TERMINAL if (bt_terminal(curwin->w_buffer)) // terminal is likely in another mode redraw_mode = TRUE; #endif redraw_tabline = TRUE; if (restart_edit) redraw_later(UPD_VALID); // causes status line redraw // set window height to desired minimal value if (curwin->w_height < p_wh && !curwin->w_p_wfh #ifdef FEAT_PROP_POPUP && !popup_is_popup(curwin) #endif ) win_setheight((int)p_wh); else if (curwin->w_height == 0) win_setheight(1); // set window width to desired minimal value if (curwin->w_width < p_wiw && !curwin->w_p_wfw) win_setwidth((int)p_wiw); setmouse(); // in case jumped to/from help buffer // Change directories when the 'acd' option is set. DO_AUTOCHDIR; return did_decrement; } /* * Jump to the first open window that contains buffer "buf", if one exists. * Returns a pointer to the window found, otherwise NULL. */ win_T * buf_jump_open_win(buf_T *buf) { win_T *wp = NULL; if (curwin->w_buffer == buf) wp = curwin; else FOR_ALL_WINDOWS(wp) if (wp->w_buffer == buf) break; if (wp != NULL) win_enter(wp, FALSE); return wp; } /* * Jump to the first open window in any tab page that contains buffer "buf", * if one exists. First search in the windows present in the current tab page. * Returns a pointer to the window found, otherwise NULL. */ win_T * buf_jump_open_tab(buf_T *buf) { win_T *wp = buf_jump_open_win(buf); tabpage_T *tp; if (wp != NULL) return wp; FOR_ALL_TABPAGES(tp) if (tp != curtab) { FOR_ALL_WINDOWS_IN_TAB(tp, wp) if (wp->w_buffer == buf) break; if (wp != NULL) { goto_tabpage_win(tp, wp); if (curwin != wp) wp = NULL; // something went wrong break; } } return wp; } static int last_win_id = LOWEST_WIN_ID - 1; /* * Allocate a window structure and link it in the window list when "hidden" is * FALSE. */ static win_T * win_alloc(win_T *after, int hidden) { win_T *new_wp; /* * allocate window structure and linesizes arrays */ new_wp = ALLOC_CLEAR_ONE(win_T); if (new_wp == NULL) return NULL; if (win_alloc_lines(new_wp) == FAIL) { vim_free(new_wp); return NULL; } new_wp->w_id = ++last_win_id; #ifdef FEAT_EVAL // init w: variables new_wp->w_vars = dict_alloc_id(aid_newwin_wvars); if (new_wp->w_vars == NULL) { win_free_lsize(new_wp); vim_free(new_wp); return NULL; } init_var_dict(new_wp->w_vars, &new_wp->w_winvar, VAR_SCOPE); #endif // Don't execute autocommands while the window is not properly // initialized yet. gui_create_scrollbar() may trigger a FocusGained // event. block_autocmds(); /* * link the window in the window list */ if (!hidden) win_append(after, new_wp); new_wp->w_wincol = 0; new_wp->w_width = Columns; // position the display and the cursor at the top of the file. new_wp->w_topline = 1; #ifdef FEAT_DIFF new_wp->w_topfill = 0; #endif new_wp->w_botline = 2; new_wp->w_cursor.lnum = 1; new_wp->w_scbind_pos = 1; // use global option value for global-local options new_wp->w_p_so = -1; new_wp->w_p_siso = -1; // We won't calculate w_fraction until resizing the window new_wp->w_fraction = 0; new_wp->w_prev_fraction_row = -1; #ifdef FEAT_GUI if (gui.in_use) { gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_LEFT], SBAR_LEFT, new_wp); gui_create_scrollbar(&new_wp->w_scrollbars[SBAR_RIGHT], SBAR_RIGHT, new_wp); } #endif #ifdef FEAT_FOLDING foldInitWin(new_wp); #endif unblock_autocmds(); #ifdef FEAT_SEARCH_EXTRA new_wp->w_next_match_id = 1000; // up to 1000 can be picked by the user #endif return new_wp; } /* * Remove window 'wp' from the window list and free the structure. */ static void win_free( win_T *wp, tabpage_T *tp) // tab page "win" is in, NULL for current { int i; buf_T *buf; wininfo_T *wip; #ifdef FEAT_FOLDING clearFolding(wp); #endif // reduce the reference count to the argument list. alist_unlink(wp->w_alist); // Don't execute autocommands while the window is halfway being deleted. // gui_mch_destroy_scrollbar() may trigger a FocusGained event. block_autocmds(); #ifdef FEAT_LUA lua_window_free(wp); #endif #ifdef FEAT_MZSCHEME mzscheme_window_free(wp); #endif #ifdef FEAT_PERL perl_win_free(wp); #endif #ifdef FEAT_PYTHON python_window_free(wp); #endif #ifdef FEAT_PYTHON3 python3_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); vim_free(wp->w_lcs_chars.multispace); vim_free(wp->w_lcs_chars.leadmultispace); #ifdef FEAT_EVAL vars_clear(&wp->w_vars->dv_hashtab); // free all w: variables hash_init(&wp->w_vars->dv_hashtab); unref_var_dict(wp->w_vars); #endif { tabpage_T *ttp; if (prevwin == wp) prevwin = NULL; FOR_ALL_TABPAGES(ttp) if (ttp->tp_prevwin == wp) ttp->tp_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_tagstack[i].user_data); } vim_free(wp->w_localdir); vim_free(wp->w_prevdir); // Remove the window from the b_wininfo lists, it may happen that the // freed memory is re-used for another window. FOR_ALL_BUFFERS(buf) FOR_ALL_BUF_WININFO(buf, wip) if (wip->wi_win == wp) { wininfo_T *wip2; // If there already is an entry with "wi_win" set to NULL it // must be removed, it would never be used. // Skip "wip" itself, otherwise Coverity complains. for (wip2 = buf->b_wininfo; wip2 != NULL; wip2 = wip2->wi_next) if (wip2 != wip && wip2->wi_win == NULL) { if (wip2->wi_next != NULL) wip2->wi_next->wi_prev = wip2->wi_prev; if (wip2->wi_prev == NULL) buf->b_wininfo = wip2->wi_next; else wip2->wi_prev->wi_next = wip2->wi_next; free_wininfo(wip2); break; } wip->wi_win = NULL; } #ifdef FEAT_SEARCH_EXTRA clear_matches(wp); #endif free_jumplist(wp); #ifdef FEAT_QUICKFIX qf_free_all(wp); #endif #ifdef FEAT_GUI if (gui.in_use) { gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_LEFT]); gui_mch_destroy_scrollbar(&wp->w_scrollbars[SBAR_RIGHT]); } #endif // FEAT_GUI #ifdef FEAT_MENU remove_winbar(wp); #endif #ifdef FEAT_PROP_POPUP free_callback(&wp->w_close_cb); free_callback(&wp->w_filter_cb); for (i = 0; i < 4; ++i) VIM_CLEAR(wp->w_border_highlight[i]); vim_free(wp->w_scrollbar_highlight); vim_free(wp->w_thumb_highlight); vim_free(wp->w_popup_title); list_unref(wp->w_popup_mask); vim_free(wp->w_popup_mask_cells); #endif #ifdef FEAT_SYN_HL vim_free(wp->w_p_cc_cols); #endif if (win_valid_any_tab(wp)) win_remove(wp, tp); if (autocmd_busy) { wp->w_next = au_pending_free_win; au_pending_free_win = wp; } else vim_free(wp); unblock_autocmds(); } /* * Return TRUE if "wp" is not in the list of windows: the autocmd window or a * popup window. */ int win_unlisted(win_T *wp) { return is_aucmd_win(wp) || WIN_IS_POPUP(wp); } #if defined(FEAT_PROP_POPUP) || defined(PROTO) /* * Free a popup window. This does not take the window out of the window list * and assumes there is only one toplevel frame, no split. */ void win_free_popup(win_T *win) { if (win->w_buffer != NULL) { if (bt_popup(win->w_buffer)) win_close_buffer(win, DOBUF_WIPE_REUSE, FALSE); else close_buffer(win, win->w_buffer, 0, FALSE, FALSE); } # if defined(FEAT_TIMERS) // the timer may have been cleared, making the pointer invalid if (timer_valid(win->w_popup_timer)) stop_timer(win->w_popup_timer); # endif vim_free(win->w_frame); win_free(win, NULL); } #endif /* * Append window "wp" in the window list after window "after". */ static void win_append(win_T *after, win_T *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. */ void win_remove( win_T *wp, tabpage_T *tp) // tab page "win" is in, NULL for current { if (wp->w_prev != NULL) wp->w_prev->w_next = wp->w_next; else if (tp == NULL) firstwin = curtab->tp_firstwin = wp->w_next; else tp->tp_firstwin = wp->w_next; if (wp->w_next != NULL) wp->w_next->w_prev = wp->w_prev; else if (tp == NULL) lastwin = curtab->tp_lastwin = wp->w_prev; else tp->tp_lastwin = wp->w_prev; } /* * Append frame "frp" in a frame list after frame "after". */ static void frame_append(frame_T *after, frame_T *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(frame_T *before, frame_T *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(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; } /* * Allocate w_lines[] for window "wp". * Return FAIL for failure, OK for success. */ int win_alloc_lines(win_T *wp) { wp->w_lines_valid = 0; wp->w_lines = ALLOC_CLEAR_MULT(wline_T, Rows); if (wp->w_lines == NULL) return FAIL; return OK; } /* * free lsize arrays for a window */ void win_free_lsize(win_T *wp) { // TODO: why would wp be NULL here? if (wp != NULL) VIM_CLEAR(wp->w_lines); } /* * Called from win_new_shellsize() after Rows changed. * This only does the current tab page, others must be done when made active. */ void shell_new_rows(void) { int h = (int)ROWS_AVAIL; if (firstwin == NULL) // not initialized yet return; if (h < frame_minheight(topframe, NULL)) h = frame_minheight(topframe, NULL); // First try setting the heights of windows with 'winfixheight'. If // that doesn't result in the right height, forget about that option. frame_new_height(topframe, h, FALSE, TRUE); if (!frame_check_height(topframe, h)) frame_new_height(topframe, h, FALSE, FALSE); (void)win_comp_pos(); // recompute w_winrow and w_wincol compute_cmdrow(); curtab->tp_ch_used = p_ch; if (*p_spk != 'c' && !skip_win_fix_scroll) win_fix_scroll(TRUE); #if 0 // Disabled: don't want making the screen smaller make a window larger. if (p_ea) win_equal(curwin, FALSE, 'v'); #endif } /* * Called from win_new_shellsize() after Columns changed. */ void shell_new_columns(void) { if (firstwin == NULL) // not initialized yet return; // First try setting the widths of windows with 'winfixwidth'. If that // doesn't result in the right width, forget about that option. frame_new_width(topframe, (int)Columns, FALSE, TRUE); if (!frame_check_width(topframe, Columns)) frame_new_width(topframe, (int)Columns, FALSE, 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 } /* * Save the size of all windows in "gap". */ void win_size_save(garray_T *gap) { win_T *wp; ga_init2(gap, sizeof(int), 1); if (ga_grow(gap, win_count() * 2 + 1) == FAIL) return; // first entry is value of 'lines' ((int *)gap->ga_data)[gap->ga_len++] = Rows; FOR_ALL_WINDOWS(wp) { ((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 * and 'lines' didn't change. * Does not free the growarray. */ void win_size_restore(garray_T *gap) { win_T *wp; int i, j; if (win_count() * 2 + 1 == gap->ga_len && ((int *)gap->ga_data)[0] == Rows) { // The order matters, because frames contain other frames, but it's // difficult to get right. The easy way out is to do it twice. for (j = 0; j < 2; ++j) { i = 1; FOR_ALL_WINDOWS(wp) { 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(); } } /* * Update the position for all windows, using the width and height of the * frames. * Returns the row just after the last window. */ int win_comp_pos(void) { int row = tabline_height(); 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(frame_T *topfrp, int *row, int *col) { win_T *wp; frame_T *frp; int startcol; int startrow; int h; wp = topfrp->fr_win; if (wp != NULL) { if (wp->w_winrow != *row || wp->w_wincol != *col) { // position changed, redraw wp->w_winrow = *row; wp->w_wincol = *col; redraw_win_later(wp, UPD_NOT_VALID); wp->w_redr_status = TRUE; } // WinBar will not show if the window height is zero h = VISIBLE_HEIGHT(wp) + wp->w_status_height; *row += h > topfrp->fr_height ? topfrp->fr_height : h; *col += wp->w_width + wp->w_vsep_width; } else { startrow = *row; startcol = *col; FOR_ALL_FRAMES(frp, topfrp->fr_child) { 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 frame_comp_pos(frp, row, col); } } } /* * Make the current window show at least one line and one column. */ void win_ensure_size(void) { if (curwin->w_height == 0) win_setheight(1); if (curwin->w_width == 0) win_setwidth(1); } /* * Set current window height and take care of repositioning other windows to * fit around it. */ void win_setheight(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(int height, win_T *win) { int row; if (win == curwin) { // Always keep current window at least one line high, even when // 'winminheight' is zero. if (height < p_wmh) height = p_wmh; if (height == 0) height = 1; height += WINBAR_HEIGHT(curwin); } frame_setheight(win->w_frame, height + win->w_status_height); // recompute the window positions row = win_comp_pos(); /* * 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; if (*p_spk != 'c') win_fix_scroll(TRUE); redraw_all_later(UPD_NOT_VALID); } /* * 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(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 height if (height > ROWS_AVAIL) height = ROWS_AVAIL; 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. */ /* * 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) { room = 0; room_reserved = 0; FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) { 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); } if (curfrp->fr_width != Columns) room_cmdline = 0; else { room_cmdline = Rows - p_ch - (lastwin->w_winrow + VISIBLE_HEIGHT(lastwin) + lastwin->w_status_height); if (room_cmdline < 0) room_cmdline = 0; } if (height <= room + room_cmdline) break; if (run == 2 || curfrp->fr_width == Columns) { height = room + room_cmdline; break; } frame_setheight(curfrp->fr_parent, height + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1); } /* * 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; } } } } /* * Set current window width and take care of repositioning other windows to * fit around it. */ void win_setwidth(int width) { win_setwidth_win(width, curwin); } void win_setwidth_win(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; } else if (width < 0) width = 0; frame_setwidth(wp->w_frame, width + wp->w_vsep_width); // recompute the window positions (void)win_comp_pos(); redraw_all_later(UPD_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(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; int room_reserved; // 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; room_reserved = 0; FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) { if (frp != curfrp && frp->fr_win != NULL && frp->fr_win->w_p_wfw) room_reserved += frp->fr_width; room += frp->fr_width; if (frp != curfrp) room -= frame_minwidth(frp, NULL); } if (width <= room) break; if (run == 2 || curfrp->fr_height >= ROWS_AVAIL) { 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; // If there is not enough room, also reduce the width of a window // with 'winfixwidth' set. if (width > room - room_reserved) room_reserved = room - width; // If there is only a 'winfixwidth' window and making the // window smaller, need to make the other window narrower. if (take < 0 && room - curfrp->fr_width < room_reserved) room_reserved = 0; /* * set the current frame to the new width */ frame_new_width(curfrp, width, FALSE, 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 (room_reserved > 0 && frp->fr_win != NULL && frp->fr_win->w_p_wfw) { if (room_reserved >= frp->fr_width) room_reserved -= frp->fr_width; else { if (frp->fr_width - room_reserved > take) room_reserved = frp->fr_width - take; take -= frp->fr_width - room_reserved; frame_new_width(frp, room_reserved, FALSE, FALSE); room_reserved = 0; } } else { if (frp->fr_width - take < w) { take -= frp->fr_width - w; frame_new_width(frp, w, FALSE, FALSE); } else { frame_new_width(frp, frp->fr_width - take, FALSE, FALSE); take = 0; } } if (run == 0) frp = frp->fr_next; else frp = frp->fr_prev; } } } } /* * Check 'winminheight' for a valid value and reduce it if needed. */ void win_setminheight(void) { int room; int needed; int first = TRUE; // loop until there is a 'winminheight' that is possible while (p_wmh > 0) { room = Rows - p_ch; needed = min_rows() - 1; // 1 was added for the cmdline if (room >= needed) break; --p_wmh; if (first) { emsg(_(e_not_enough_room)); first = FALSE; } } } /* * Check 'winminwidth' for a valid value and reduce it if needed. */ void win_setminwidth(void) { int room; int needed; int first = TRUE; // loop until there is a 'winminheight' that is possible while (p_wmw > 0) { room = Columns; needed = frame_minwidth(topframe, NULL); if (room >= needed) break; --p_wmw; if (first) { emsg(_(e_not_enough_room)); first = FALSE; } } } /* * Status line of dragwin is dragged "offset" lines down (negative is up). */ void win_drag_status_line(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; else room -= p_ch; if (room < 0) room = 0; // sum up the room of frames below of the current one FOR_ALL_FRAMES(fr, curfr->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 = MAX(Rows - cmdline_row, 1); curtab->tp_ch_used = p_ch; if (*p_spk != 'c') win_fix_scroll(TRUE); redraw_all_later(UPD_SOME_VALID); showmode(); } /* * Separator line of dragwin is dragged "offset" lines right (negative is left). */ void win_drag_vsep_line(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 happen?) 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_ALL_FRAMES(fr, curfr->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; if (fr == NULL) // This can happen when calling win_move_separator() on the rightmost // window. Just don't do anything. return; // grow frame fr by offset lines frame_new_width(fr, fr->fr_width + offset, left, FALSE); // 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, FALSE); } else { frame_new_width(fr, fr->fr_width - offset, !left, FALSE); break; } if (left) fr = fr->fr_prev; else fr = fr->fr_next; } (void)win_comp_pos(); redraw_all_later(UPD_NOT_VALID); } #define FRACTION_MULT 16384L /* * Set wp->w_fraction for the current w_wrow and w_height. * Has no effect when the window is less than two lines. */ void set_fraction(win_T *wp) { if (wp->w_height > 1) // When cursor is in the first line the percentage is computed as if // it's halfway that line. Thus with two lines it is 25%, with three // lines 17%, etc. Similarly for the last line: 75%, 83%, etc. wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT + FRACTION_MULT / 2) / (long)wp->w_height; } /* * Handle scroll position for 'splitkeep'. Replaces scroll_to_fraction() * call from win_new_height(). Instead we iterate over all windows in a * tabpage and calculate the new scroll position. * TODO: Ensure this also works with wrapped lines. * Requires topline to be able to be set to a bufferline with some * offset(row-wise scrolling/smoothscroll). */ static void win_fix_scroll(int resize) { int diff; win_T *wp; linenr_T lnum; skip_update_topline = TRUE; FOR_ALL_WINDOWS(wp) { // Skip when window height has not changed. if (wp->w_height != wp->w_prev_height) { // If window has moved update botline to keep the same screenlines. if (*p_spk == 's' && wp->w_winrow != wp->w_prev_winrow && wp->w_botline - 1 <= wp->w_buffer->b_ml.ml_line_count) { lnum = wp->w_cursor.lnum; diff = (wp->w_winrow - wp->w_prev_winrow) + (wp->w_height - wp->w_prev_height); wp->w_cursor.lnum = wp->w_botline - 1; // Add difference in height and row to botline. if (diff > 0) cursor_down_inner(wp, diff); else cursor_up_inner(wp, -diff); // Bring the new cursor position to the bottom of the screen. wp->w_fraction = FRACTION_MULT; scroll_to_fraction(wp, wp->w_prev_height); wp->w_cursor.lnum = lnum; } else if (wp == curwin) wp->w_valid &= ~VALID_CROW; invalidate_botline_win(wp); validate_botline_win(wp); } wp->w_prev_height = wp->w_height; wp->w_prev_winrow = wp->w_winrow; } skip_update_topline = FALSE; // Ensure cursor is valid when not in normal mode or when resized. if (!(get_real_state() & (MODE_NORMAL|MODE_CMDLINE|MODE_TERMINAL))) win_fix_cursor(FALSE); else if (resize) win_fix_cursor(TRUE); } /* * Make sure the cursor position is valid for 'splitkeep'. * If it is not, put the cursor position in the jumplist and move it. * If we are not in normal mode ("normal" is zero), make it valid by scrolling * instead. */ static void win_fix_cursor(int normal) { long so = get_scrolloff_value(); win_T *wp = curwin; linenr_T nlnum = 0; linenr_T lnum = wp->w_cursor.lnum; linenr_T bot; linenr_T top; if (wp->w_buffer->b_ml.ml_line_count < wp->w_height) return; if (skip_win_fix_cursor) return; // Determine valid cursor range. so = MIN(wp->w_height / 2, so); wp->w_cursor.lnum = wp->w_topline; top = cursor_down_inner(wp, so); wp->w_cursor.lnum = wp->w_botline - 1; bot = cursor_up_inner(wp, so); wp->w_cursor.lnum = lnum; // Check if cursor position is above or below valid cursor range. if (lnum > bot && (wp->w_botline - wp->w_buffer->b_ml.ml_line_count) != 1) nlnum = bot; else if (lnum < top && wp->w_topline != 1) nlnum = (so == wp->w_height / 2) ? bot : top; if (nlnum) // Cursor is invalid for current scroll position. { if (normal) // Save to jumplist and set cursor to avoid scrolling. { setmark('\''); wp->w_cursor.lnum = nlnum; } else // Scroll instead when not in normal mode. { wp->w_fraction = (nlnum == bot) ? FRACTION_MULT : 0; scroll_to_fraction(wp, wp->w_prev_height); validate_botline_win(curwin); } } } /* * Set the height of a window. * "height" excludes any window toolbar. * This takes care of the things inside the window, not what happens to the * window position, the frame or to other windows. */ void win_new_height(win_T *wp, int height) { int prev_height = wp->w_height; // 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_height == height) return; // nothing to do if (wp->w_height > 0) { if (wp == curwin && *p_spk == 'c') // w_wrow needs to be valid. When setting 'laststatus' this may // call win_new_height() recursively. validate_cursor(); if (wp->w_height != prev_height) return; // Recursive call already changed the size, bail out here // to avoid the following to mess things up. if (wp->w_wrow != wp->w_prev_fraction_row) set_fraction(wp); } wp->w_height = height; wp->w_skipcol = 0; wp->w_redr_status = TRUE; win_comp_scroll(wp); // There is no point in adjusting the scroll position when exiting. Some // values might be invalid. if (!exiting && *p_spk == 'c') scroll_to_fraction(wp, prev_height); } void scroll_to_fraction(win_T *wp, int prev_height) { linenr_T lnum; int sline, line_size; int height = wp->w_height; // Don't change w_topline in any of these cases: // - window height is 0 // - 'scrollbind' is set and this isn't the current window // - window height is sufficient to display the whole buffer and first line // is visible. if (height > 0 && (!wp->w_p_scb || wp == curwin) && (height < wp->w_buffer->b_ml.ml_line_count || wp->w_topline > 1)) { /* * Find a value for w_topline that shows the cursor at the same * relative position in the window as before (more or less). */ 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) { // Make sure the whole cursor line is visible, if possible. int rows = plines_win(wp, lnum, FALSE); if (sline > wp->w_height - rows) { sline = wp->w_height - rows; wp->w_wrow -= rows - line_size; } } if (sline < 0) { /* * Cursor line would go off top of screen if w_wrow was this high. * Make cursor line the first line in the window. If not enough * room use w_skipcol; */ wp->w_wrow = line_size; if (wp->w_wrow >= wp->w_height && (wp->w_width - win_col_off(wp)) > 0) { wp->w_skipcol += wp->w_width - win_col_off(wp); --wp->w_wrow; while (wp->w_wrow >= wp->w_height) { wp->w_skipcol += wp->w_width - win_col_off(wp) + win_col_off2(wp); --wp->w_wrow; } } } else if (sline > 0) { 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 (get_scrolloff_value()) update_topline(); curs_columns(FALSE); // validate w_wrow } if (prev_height > 0) wp->w_prev_fraction_row = wp->w_wrow; redraw_win_later(wp, UPD_SOME_VALID); invalidate_botline_win(wp); } /* * Set the width of a window. */ void win_new_width(win_T *wp, int width) { // Should we give an error if width < 0? wp->w_width = width < 0 ? 0 : width; wp->w_lines_valid = 0; changed_line_abv_curs_win(wp); invalidate_botline_win(wp); if (wp == curwin) { skip_update_topline = (*p_spk != 'c'); update_topline(); curs_columns(TRUE); // validate w_wrow skip_update_topline = FALSE; } redraw_win_later(wp, UPD_NOT_VALID); wp->w_redr_status = TRUE; } void win_comp_scroll(win_T *wp) { #if defined(FEAT_EVAL) int old_w_p_scr = wp->w_p_scr; #endif wp->w_p_scr = ((unsigned)wp->w_height >> 1); if (wp->w_p_scr == 0) wp->w_p_scr = 1; #if defined(FEAT_EVAL) if (wp->w_p_scr != old_w_p_scr) { // Used by "verbose set scroll". wp->w_p_script_ctx[WV_SCROLL].sc_sid = SID_WINLAYOUT; wp->w_p_script_ctx[WV_SCROLL].sc_lnum = 0; } #endif } /* * Command_height: called whenever p_ch has been changed. */ void command_height(void) { int h; frame_T *frp; int old_p_ch = curtab->tp_ch_used; // 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. And when // p_ch was changed in another tab page. curtab->tp_ch_used = p_ch; // If the space for the command line is already more than 'cmdheight' there // is nothing to do (window size must have decreased). if (p_ch > old_p_ch && cmdline_row <= Rows - p_ch) return; // Update cmdline_row to what it should be: just below the last window. cmdline_row = topframe->fr_height + tabline_height(); // If cmdline_row is smaller than what it is supposed to be for 'cmdheight' // then set old_p_ch to what it would be, so that the windows get resized // properly for the new value. if (cmdline_row < Rows - p_ch) old_p_ch = Rows - cmdline_row; // Find bottom frame with width of screen. frp = lastwin->w_frame; while (frp->fr_width != Columns && frp->fr_parent != NULL) frp = frp->fr_parent; // 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_not_enough_room)); p_ch = old_p_ch; curtab->tp_ch_used = 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(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(); } /* * 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(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( 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 || !ONE_WINDOW)))); } static void last_status_rec(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_not_enough_room)); 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(UPD_SOME_VALID); } // Set prev_height when difference is due to 'laststatus'. if (abs(wp->w_height - wp->w_prev_height) == 1) wp->w_prev_height = wp->w_height; } else if (fr->fr_layout == FR_ROW) { // vertically split windows, set status line for each one FOR_ALL_FRAMES(fp, fr->fr_child) last_status_rec(fp, statusline); } 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); } } /* * Return the number of lines used by the tab page line. */ int tabline_height(void) { #ifdef FEAT_GUI_TABLINE // When the GUI has the tabline then this always returns zero. if (gui_use_tabline()) return 0; #endif switch (p_stal) { case 0: return 0; case 1: return (first_tabpage->tp_next == NULL) ? 0 : 1; } return 1; } /* * Return the minimal number of rows that is needed on the screen to display * the current number of windows. */ int min_rows(void) { int total; tabpage_T *tp; int n; if (firstwin == NULL) // not initialized yet return MIN_LINES; total = 0; FOR_ALL_TABPAGES(tp) { n = frame_minheight(tp->tp_topframe, NULL); if (total < n) total = n; } total += tabline_height(); total += 1; // count the room for the command line return total; } /* * Return TRUE if there is only one window and only one tab page, not * counting a help or preview window, unless it is the current window. * Does not count unlisted windows. */ int only_one_window(void) { int count = 0; win_T *wp; #if defined(FEAT_PROP_POPUP) // If the current window is a popup then there always is another window. if (popup_is_popup(curwin)) return FALSE; #endif // If there is another tab page there always is another window. if (first_tabpage->tp_next != NULL) return FALSE; FOR_ALL_WINDOWS(wp) if (wp->w_buffer != NULL && (!((bt_help(wp->w_buffer) && !bt_help(curbuf)) # ifdef FEAT_QUICKFIX || wp->w_p_pvw # endif ) || wp == curwin) && !is_aucmd_win(wp)) ++count; return (count <= 1); } /* * Implementation of check_lnums() and check_lnums_nested(). */ static void check_lnums_both(int do_curwin, int nested) { win_T *wp; tabpage_T *tp; FOR_ALL_TAB_WINDOWS(tp, wp) if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) { int need_adjust; if (!nested) { // save the original cursor position and topline wp->w_save_cursor.w_cursor_save = wp->w_cursor; wp->w_save_cursor.w_topline_save = wp->w_topline; } need_adjust = wp->w_cursor.lnum > curbuf->b_ml.ml_line_count; if (need_adjust) wp->w_cursor.lnum = curbuf->b_ml.ml_line_count; if (need_adjust || !nested) // save the (corrected) cursor position wp->w_save_cursor.w_cursor_corr = wp->w_cursor; need_adjust = wp->w_topline > curbuf->b_ml.ml_line_count; if (need_adjust) wp->w_topline = curbuf->b_ml.ml_line_count; if (need_adjust || !nested) // save the (corrected) topline wp->w_save_cursor.w_topline_corr = wp->w_topline; } } /* * 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(int do_curwin) { check_lnums_both(do_curwin, FALSE); } /* * Like check_lnums() but for when check_lnums() was already called. */ void check_lnums_nested(int do_curwin) { check_lnums_both(do_curwin, TRUE); } /* * Reset cursor and topline to its stored values from check_lnums(). * check_lnums() must have been called first! */ void reset_lnums(void) { win_T *wp; tabpage_T *tp; FOR_ALL_TAB_WINDOWS(tp, wp) if (wp->w_buffer == curbuf) { // Restore the value if the autocommand didn't change it and it was // set. if (EQUAL_POS(wp->w_save_cursor.w_cursor_corr, wp->w_cursor) && wp->w_save_cursor.w_cursor_save.lnum != 0) wp->w_cursor = wp->w_save_cursor.w_cursor_save; if (wp->w_save_cursor.w_topline_corr == wp->w_topline && wp->w_save_cursor.w_topline_save != 0) wp->w_topline = wp->w_save_cursor.w_topline_save; } } /* * 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) */ /* * Create a snapshot of the current frame sizes. */ void make_snapshot(int idx) { clear_snapshot(curtab, idx); make_snapshot_rec(topframe, &curtab->tp_snapshot[idx]); } static void make_snapshot_rec(frame_T *fr, frame_T **frp) { *frp = ALLOC_CLEAR_ONE(frame_T); if (*frp == NULL) return; (*frp)->fr_layout = fr->fr_layout; (*frp)->fr_width = fr->fr_width; (*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(tabpage_T *tp, int idx) { clear_snapshot_rec(tp->tp_snapshot[idx]); tp->tp_snapshot[idx] = NULL; } static void clear_snapshot_rec(frame_T *fr) { if (fr == NULL) return; clear_snapshot_rec(fr->fr_next); clear_snapshot_rec(fr->fr_child); vim_free(fr); } /* * Traverse a snapshot to find the previous curwin. */ static win_T * get_snapshot_curwin_rec(frame_T *ft) { win_T *wp; if (ft->fr_next != NULL) { if ((wp = get_snapshot_curwin_rec(ft->fr_next)) != NULL) return wp; } if (ft->fr_child != NULL) { if ((wp = get_snapshot_curwin_rec(ft->fr_child)) != NULL) return wp; } return ft->fr_win; } /* * Return the current window stored in the snapshot or NULL. */ static win_T * get_snapshot_curwin(int idx) { if (curtab->tp_snapshot[idx] == NULL) return NULL; return get_snapshot_curwin_rec(curtab->tp_snapshot[idx]); } /* * 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. */ void restore_snapshot( int idx, int close_curwin) // closing current window { win_T *wp; if (curtab->tp_snapshot[idx] != NULL && curtab->tp_snapshot[idx]->fr_width == topframe->fr_width && curtab->tp_snapshot[idx]->fr_height == topframe->fr_height && check_snapshot_rec(curtab->tp_snapshot[idx], topframe) == OK) { wp = restore_snapshot_rec(curtab->tp_snapshot[idx], topframe); win_comp_pos(); if (wp != NULL && close_curwin) win_goto(wp); redraw_all_later(UPD_NOT_VALID); } clear_snapshot(curtab, idx); } /* * Check if frames "sn" and "fr" have the same layout, same following frames * and same children. And the window pointer is valid. */ static int check_snapshot_rec(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) || (sn->fr_win != NULL && !win_valid(sn->fr_win))) 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(frame_T *sn, frame_T *fr) { win_T *wp = NULL; win_T *wp2; fr->fr_height = sn->fr_height; fr->fr_width = sn->fr_width; if (fr->fr_layout == FR_LEAF) { frame_new_height(fr, fr->fr_height, FALSE, FALSE); frame_new_width(fr, fr->fr_width, FALSE, FALSE); 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; } #if defined(FEAT_GUI) || defined(PROTO) /* * Return TRUE if there is any vertically split window. */ int win_hasvertsplit(void) { frame_T *fr; if (topframe->fr_layout == FR_ROW) return TRUE; if (topframe->fr_layout == FR_COL) FOR_ALL_FRAMES(fr, topframe->fr_child) if (fr->fr_layout == FR_ROW) return TRUE; return FALSE; } #endif #if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO) int get_win_number(win_T *wp, win_T *first_win) { int i = 1; win_T *w; for (w = first_win; w != NULL && w != wp; w = W_NEXT(w)) ++i; if (w == NULL) return 0; else return i; } int get_tab_number(tabpage_T *tp UNUSED) { int i = 1; tabpage_T *t; for (t = first_tabpage; t != NULL && t != tp; t = t->tp_next) ++i; if (t == NULL) return 0; else return i; } #endif /* * Return TRUE if "topfrp" and its children are at the right height. */ static int frame_check_height(frame_T *topfrp, int height) { frame_T *frp; if (topfrp->fr_height != height) return FALSE; if (topfrp->fr_layout == FR_ROW) FOR_ALL_FRAMES(frp, topfrp->fr_child) if (frp->fr_height != height) return FALSE; return TRUE; } /* * Return TRUE if "topfrp" and its children are at the right width. */ static int frame_check_width(frame_T *topfrp, int width) { frame_T *frp; if (topfrp->fr_width != width) return FALSE; if (topfrp->fr_layout == FR_COL) FOR_ALL_FRAMES(frp, topfrp->fr_child) if (frp->fr_width != width) return FALSE; return TRUE; } #if defined(FEAT_SYN_HL) || defined(PROTO) /* * Simple int comparison function for use with qsort() */ static int int_cmp(const void *a, const void *b) { return *(const int *)a - *(const int *)b; } /* * Handle setting 'colorcolumn' or 'textwidth' in window "wp". * Returns error message, NULL if it's OK. */ char * check_colorcolumn(win_T *wp) { char_u *s; int col; int count = 0; int color_cols[256]; int i; int j = 0; if (wp->w_buffer == NULL) return NULL; // buffer was closed for (s = wp->w_p_cc; *s != NUL && count < 255;) { if (*s == '-' || *s == '+') { // -N and +N: add to 'textwidth' col = (*s == '-') ? -1 : 1; ++s; if (!VIM_ISDIGIT(*s)) return e_invalid_argument; col = col * getdigits(&s); if (wp->w_buffer->b_p_tw == 0) goto skip; // 'textwidth' not set, skip this item col += wp->w_buffer->b_p_tw; if (col < 0) goto skip; } else if (VIM_ISDIGIT(*s)) col = getdigits(&s); else return e_invalid_argument; color_cols[count++] = col - 1; // 1-based to 0-based skip: if (*s == NUL) break; if (*s != ',') return e_invalid_argument; if (*++s == NUL) return e_invalid_argument; // illegal trailing comma as in "set cc=80," } vim_free(wp->w_p_cc_cols); if (count == 0) wp->w_p_cc_cols = NULL; else { wp->w_p_cc_cols = ALLOC_MULT(int, count + 1); if (wp->w_p_cc_cols != NULL) { // sort the columns for faster usage on screen redraw inside // win_line() qsort(color_cols, count, sizeof(int), int_cmp); for (i = 0; i < count; ++i) // skip duplicates if (j == 0 || wp->w_p_cc_cols[j - 1] != color_cols[i]) wp->w_p_cc_cols[j++] = color_cols[i]; wp->w_p_cc_cols[j] = -1; // end marker } } return NULL; // no error } #endif