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-rw-r--r--src/window.c5394
1 files changed, 0 insertions, 5394 deletions
diff --git a/src/window.c b/src/window.c
deleted file mode 100644
index 27582184d7..0000000000
--- a/src/window.c
+++ /dev/null
@@ -1,5394 +0,0 @@
-/*
- * 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"
-#include "window.h"
-#include "buffer.h"
-#include "charset.h"
-#include "diff.h"
-#include "edit.h"
-#include "eval.h"
-#include "ex_cmds.h"
-#include "ex_cmds2.h"
-#include "ex_docmd.h"
-#include "ex_eval.h"
-#include "ex_getln.h"
-#include "farsi.h"
-#include "fileio.h"
-#include "fold.h"
-#include "getchar.h"
-#include "hashtab.h"
-#include "main.h"
-#include "mark.h"
-#include "memline.h"
-#include "memory.h"
-#include "message.h"
-#include "misc1.h"
-#include "misc2.h"
-#include "file_search.h"
-#include "garray.h"
-#include "move.h"
-#include "normal.h"
-#include "option.h"
-#include "os_unix.h"
-#include "path.h"
-#include "quickfix.h"
-#include "regexp.h"
-#include "screen.h"
-#include "search.h"
-#include "syntax.h"
-#include "term.h"
-#include "undo.h"
-#include "os/os.h"
-
-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 int last_window(void);
-static int close_last_window_tabpage(win_T *win, int free_buf,
- tabpage_T *prev_curtab);
-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 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 void win_enter_ext(win_T *wp, int undo_sync, int no_curwin,
- int trigger_enter_autocmds,
- int trigger_leave_autocmds);
-static void win_free(win_T *wp, tabpage_T *tp);
-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 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);
-static void set_fraction(win_T *wp);
-
-#define NOWIN (win_T *)-1 /* non-existing window */
-
-# define ROWS_AVAIL (Rows - p_ch - tabline_height())
-
-
-static char *m_onlyone = N_("Already only one window");
-
-/*
- * 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;
- int type = FIND_DEFINE;
- int len;
- char_u cbuf[40];
-
- if (Prenum == 0)
- Prenum1 = 1;
- else
- Prenum1 = Prenum;
-
-# define CHECK_CMDWIN if (cmdwin_type != 0) { EMSG(_(e_cmdwin)); break; }
-
- 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;
- 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;
- 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 */
- STRCPY(cbuf, "split #");
- if (Prenum)
- vim_snprintf((char *)cbuf + 7, sizeof(cbuf) - 7,
- "%" PRId64, (int64_t)Prenum);
- do_cmdline_cmd(cbuf);
- 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, "%" PRId64, (int64_t)Prenum);
- else
- cbuf[0] = NUL;
- if (nchar == 'v' || nchar == Ctrl_V)
- STRCAT(cbuf, "v");
- STRCAT(cbuf, "new");
- do_cmdline_cmd(cbuf);
- break;
-
- /* quit current window */
- case Ctrl_Q:
- case 'q':
- reset_VIsual_and_resel(); /* stop Visual mode */
- do_cmdline_cmd((char_u *)"quit");
- break;
-
- /* close current window */
- case Ctrl_C:
- case 'c':
- reset_VIsual_and_resel(); /* stop Visual mode */
- do_cmdline_cmd((char_u *)"close");
- break;
-
- /* 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 (wp = firstwin; wp != NULL; wp = wp->w_next)
- if (wp->w_p_pvw)
- break;
- if (wp == NULL)
- EMSG(_("E441: There is no preview window"));
- else
- win_goto(wp);
- break;
-
- /* close all but current window */
- case Ctrl_O:
- case 'o':
- CHECK_CMDWIN reset_VIsual_and_resel(); /* stop Visual mode */
- do_cmdline_cmd((char_u *)"only");
- break;
-
- /* cursor to next window with wrap around */
- case Ctrl_W:
- case 'w':
- /* cursor to previous window with wrap around */
- case 'W':
- CHECK_CMDWIN
- if (firstwin == lastwin && 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':
- 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 (prevwin == NULL)
- beep_flush();
- else
- win_goto(prevwin);
- break;
-
- /* exchange current and next window */
- case 'x':
- case Ctrl_X:
- CHECK_CMDWIN win_exchange(Prenum);
- break;
-
- /* rotate windows downwards */
- case Ctrl_R:
- case 'r':
- CHECK_CMDWIN 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 height */
- case '=':
- win_equal(NULL, FALSE, 'b');
- break;
-
- /* increase current window height */
- case '+':
- win_setheight(curwin->w_height + (int)Prenum1);
- break;
-
- /* decrease current window height */
- case '-':
- win_setheight(curwin->w_height - (int)Prenum1);
- break;
-
- /* set current window height */
- case Ctrl__:
- case '_':
- win_setheight(Prenum ? (int)Prenum : 9999);
- break;
-
- /* increase current window width */
- case '>':
- win_setwidth(curwin->w_width + (int)Prenum1);
- break;
-
- /* decrease current window width */
- case '<':
- win_setwidth(curwin->w_width - (int)Prenum1);
- break;
-
- /* set current window width */
- case '|':
- win_setwidth(Prenum != 0 ? (int)Prenum : 9999);
- break;
-
- /* jump to tag and split window if tag exists (in preview window) */
- case '}':
- CHECK_CMDWIN
- if (Prenum)
- g_do_tagpreview = Prenum;
- else
- g_do_tagpreview = p_pvh;
- /*FALLTHROUGH*/
- case ']':
- case Ctrl_RSB:
- CHECK_CMDWIN reset_VIsual_and_resel(); /* stop Visual mode */
- if (Prenum)
- postponed_split = Prenum;
- else
- postponed_split = -1;
-
- /* Execute the command right here, required when
- * "wincmd ]" was used in a function. */
- do_nv_ident(Ctrl_RSB, NUL);
- break;
-
- /* edit file name under cursor in a new window */
- case 'f':
- case 'F':
- case Ctrl_F:
-wingotofile:
- CHECK_CMDWIN
-
- ptr = grab_file_name(Prenum1, &lnum);
- if (ptr != NULL) {
- setpcmark();
- if (win_split(0, 0) == OK) {
- RESET_BINDING(curwin);
- (void)do_ecmd(0, ptr, NULL, NULL, ECMD_LASTL,
- ECMD_HIDE, NULL);
- if (nchar == 'F' && lnum >= 0) {
- curwin->w_cursor.lnum = lnum;
- check_cursor_lnum();
- beginline(BL_SOL | BL_FIX);
- }
- }
- free(ptr);
- }
- break;
-
- /* 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;
- find_pattern_in_path(ptr, 0, len, TRUE,
- Prenum == 0 ? TRUE : FALSE, type,
- Prenum1, ACTION_SPLIT, (linenr_T)1, (linenr_T)MAXLNUM);
- curwin->w_set_curswant = TRUE;
- break;
-
- case K_KENTER:
- case CAR:
- /*
- * In a quickfix window a <CR> jumps to the error under the
- * cursor in a new window.
- */
- if (bt_quickfix(curbuf)) {
- sprintf((char *)cbuf, "split +%" PRId64 "%s",
- (int64_t)curwin->w_cursor.lnum,
- (curwin->w_llist_ref == NULL) ? "cc" : "ll");
- do_cmdline_cmd(cbuf);
- }
- break;
-
-
- /* 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) {
- case '}':
- xchar = Ctrl_RSB;
- if (Prenum)
- g_do_tagpreview = Prenum;
- else
- g_do_tagpreview = p_pvh;
- /*FALLTHROUGH*/
- case ']':
- case Ctrl_RSB:
- reset_VIsual_and_resel(); /* stop Visual mode */
- if (Prenum)
- postponed_split = Prenum;
- else
- postponed_split = -1;
-
- /* Execute the command right here, required when
- * "wincmd g}" was used in a function. */
- do_nv_ident('g', xchar);
- break;
-
- case 'f': /* CTRL-W gf: "gf" in a new tab page */
- case 'F': /* CTRL-W gF: "gF" in a new tab page */
- cmdmod.tab = tabpage_index(curtab) + 1;
- nchar = xchar;
- goto wingotofile;
- default:
- beep_flush();
- break;
- }
- break;
-
- default: beep_flush();
- break;
- }
-}
-
-/*
- * split the current window, implements CTRL-W s and :split
- *
- * "size" is the height or width for the new window, 0 to use half of current
- * height or width.
- *
- * "flags":
- * WSP_ROOM: require enough room for new window
- * WSP_VERT: vertical split.
- * WSP_TOP: open window at the top-left of the shell (help window).
- * WSP_BOT: open window at the bottom-right of the shell (quickfix window).
- * WSP_HELP: creating the help window, keep layout snapshot
- *
- * return FAIL for failure, OK otherwise
- */
-int win_split(int size, int flags)
-{
- /* 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.split;
- if ((flags & WSP_TOP) && (flags & WSP_BOT)) {
- EMSG(_("E442: Can't split topleft and botright at the same time"));
- return FAIL;
- }
-
- /* When creating the help window make a snapshot of the window layout.
- * Otherwise clear the snapshot, it's now invalid. */
- if (flags & WSP_HELP)
- make_snapshot(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;
- int before;
-
- if (flags & WSP_TOP)
- oldwin = firstwin;
- else if (flags & WSP_BOT)
- oldwin = lastwin;
- else
- oldwin = curwin;
-
- /* add a status line when p_ls == 1 and splitting the first window */
- if (lastwin == firstwin && p_ls == 1 && oldwin->w_status_height == 0) {
- if (oldwin->w_height <= p_wmh && new_wp == NULL) {
- EMSG(_(e_noroom));
- return FAIL;
- }
- need_status = STATUS_HEIGHT;
- }
-
-
- if (flags & WSP_VERT) {
- layout = FR_ROW;
-
- /*
- * Check if we are able to split the current window and compute its
- * width.
- */
- needed = p_wmw + 1;
- if (flags & WSP_ROOM)
- needed += p_wiw - p_wmw;
- if (p_ea || (flags & (WSP_BOT | WSP_TOP))) {
- available = topframe->fr_width;
- needed += frame_minwidth(topframe, NULL);
- } else
- available = oldwin->w_width;
- if (available < needed && new_wp == NULL) {
- EMSG(_(e_noroom));
- return FAIL;
- }
- if (new_size == 0)
- new_size = oldwin->w_width / 2;
- if (new_size > oldwin->w_width - p_wmw - 1)
- new_size = oldwin->w_width - p_wmw - 1;
- if (new_size < p_wmw)
- new_size = p_wmw;
-
- /* if it doesn't fit in the current window, need win_equal() */
- if (oldwin->w_width - new_size - 1 < p_wmw)
- do_equal = TRUE;
-
- /* 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. */
- if (oldwin->w_p_wfw)
- win_setwidth_win(oldwin->w_width + new_size, 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 - STATUS_HEIGHT)) {
- 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.
- */
- needed = p_wmh + STATUS_HEIGHT + need_status;
- if (flags & WSP_ROOM)
- needed += p_wh - p_wmh;
- if (p_ea || (flags & (WSP_BOT | WSP_TOP))) {
- available = topframe->fr_height;
- needed += frame_minheight(topframe, NULL);
- } else {
- available = oldwin->w_height;
- needed += p_wmh;
- }
- if (available < needed && new_wp == NULL) {
- EMSG(_(e_noroom));
- return FAIL;
- }
- oldwin_height = oldwin->w_height;
- if (need_status) {
- oldwin->w_status_height = STATUS_HEIGHT;
- oldwin_height -= STATUS_HEIGHT;
- }
- if (new_size == 0)
- new_size = oldwin_height / 2;
-
- if (new_size > oldwin_height - p_wmh - STATUS_HEIGHT)
- new_size = oldwin_height - p_wmh - STATUS_HEIGHT;
- if (new_size < p_wmh)
- new_size = p_wmh;
-
- /* if it doesn't fit in the current window, need win_equal() */
- if (oldwin_height - new_size - STATUS_HEIGHT < p_wmh)
- do_equal = TRUE;
-
- /* We don't like to take lines for the new window from a
- * 'winfixheight' window. Take them from a window above or below
- * instead, if possible. */
- if (oldwin->w_p_wfh) {
- win_setheight_win(oldwin->w_height + new_size + STATUS_HEIGHT,
- oldwin);
- oldwin_height = oldwin->w_height;
- if (need_status)
- oldwin_height -= STATUS_HEIGHT;
- }
-
- /* 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);
-
- /* 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 = xcalloc(1, sizeof(frame_T));
- *frp = *curfrp;
- curfrp->fr_layout = layout;
- frp->fr_parent = curfrp;
- frp->fr_next = NULL;
- frp->fr_prev = NULL;
- curfrp->fr_child = frp;
- curfrp->fr_win = NULL;
- curfrp = frp;
- if (frp->fr_win != NULL)
- oldwin->w_frame = frp;
- else
- for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next)
- frp->fr_parent = curfrp;
- }
-
- if (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 (oldwin->w_height > 0)
- 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));
- 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, oldwin->w_height);
- wp->w_status_height = oldwin->w_status_height;
- }
- frp->fr_height = curfrp->fr_height;
-
- /* "new_size" of the current window goes to the new window, use
- * one column for the vertical separator */
- 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))
- frame_new_height(curfrp, curfrp->fr_height
- - (new_size + STATUS_HEIGHT), flags & WSP_TOP, FALSE);
- else
- win_new_height(oldwin, oldwin_height - (new_size + STATUS_HEIGHT));
- if (before) { /* new window above current one */
- wp->w_winrow = oldwin->w_winrow;
- wp->w_status_height = STATUS_HEIGHT;
- oldwin->w_winrow += wp->w_height + STATUS_HEIGHT;
- } else { /* new window below current one */
- wp->w_winrow = oldwin->w_winrow + oldwin->w_height + STATUS_HEIGHT;
- wp->w_status_height = oldwin->w_status_height;
- oldwin->w_status_height = STATUS_HEIGHT;
- }
- 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
- */
- redraw_win_later(wp, NOT_VALID);
- wp->w_redr_status = TRUE;
- redraw_win_later(oldwin, NOT_VALID);
- oldwin->w_redr_status = TRUE;
-
- if (need_status) {
- msg_row = Rows - 1;
- msg_col = sc_col;
- msg_clr_eos_force(); /* Old command/ruler may still be there */
- comp_col();
- msg_row = Rows - 1;
- msg_col = 0; /* put position back at start of line */
- }
-
- /*
- * equalize the window sizes.
- */
- if (do_equal || dir != 0)
- win_equal(wp, TRUE,
- (flags & WSP_VERT) ? (dir == 'v' ? 'b' : 'h')
- : dir == 'h' ? 'b' :
- 'v');
-
- /* 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;
-
- } else {
- i = p_wh;
- if (size != 0)
- p_wh = size;
- }
-
- /*
- * make the new window the current window
- */
- win_enter(wp, FALSE);
- 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)
-{
- int i;
-
- newp->w_buffer = oldp->w_buffer;
- newp->w_s = &(oldp->w_buffer->b_s);
- 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;
- newp->w_topfill = oldp->w_topfill;
- 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);
- if (flags & WSP_NEWLOC) {
- /* Don't copy the location list. */
- newp->w_llist = NULL;
- newp->w_llist_ref = NULL;
- } else
- copy_loclist(oldp, newp);
- newp->w_localdir = (oldp->w_localdir == NULL)
- ? NULL : vim_strsave(oldp->w_localdir);
-
- /* copy tagstack and folds */
- for (i = 0; i < oldp->w_tagstacklen; i++) {
- newp->w_tagstack[i] = oldp->w_tagstack[i];
- if (newp->w_tagstack[i].tagname != NULL)
- newp->w_tagstack[i].tagname =
- vim_strsave(newp->w_tagstack[i].tagname);
- }
- newp->w_tagstackidx = oldp->w_tagstackidx;
- newp->w_tagstacklen = oldp->w_tagstacklen;
- copyFoldingState(oldp, newp);
-
- win_init_some(newp, oldp);
-
- check_colorcolumn(newp);
-}
-
-/*
- * 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);
-}
-
-
-/*
- * Check if "win" is a pointer to an existing window.
- */
-int win_valid(win_T *win)
-{
- win_T *wp;
-
- if (win == NULL)
- return FALSE;
- for (wp = firstwin; wp != NULL; wp = wp->w_next)
- if (wp == win)
- return TRUE;
- return FALSE;
-}
-
-/*
- * Return the number of windows.
- */
-int win_count(void)
-{
- win_T *wp;
- int count = 0;
-
- for (wp = firstwin; wp != NULL; wp = wp->w_next)
- ++count;
- return count;
-}
-
-/*
- * Make "count" windows on the screen.
- * Return actual number of windows on the screen.
- * Must be called when there is just one window, filling the whole screen
- * (excluding the command line).
- */
-int
-make_windows (
- int count,
- int vertical /* split windows vertically if TRUE */
-)
-{
- int maxcount;
- int todo;
-
- if (vertical) {
- /* Each windows needs at least 'winminwidth' lines and a separator
- * column. */
- maxcount = (curwin->w_width + curwin->w_vsep_width
- - (p_wiw - p_wmw)) / (p_wmw + 1);
- } else {
- /* Each window needs at least 'winminheight' lines and a status line. */
- maxcount = (curwin->w_height + curwin->w_status_height
- - (p_wh - p_wmh)) / (p_wmh + STATUS_HEIGHT);
- }
-
- if (maxcount < 2)
- maxcount = 2;
- if (count > maxcount)
- count = maxcount;
-
- /*
- * add status line now, otherwise first window will be too big
- */
- if (count > 1)
- last_status(TRUE);
-
- /*
- * 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 (lastwin == firstwin) { /* just one window */
- beep_flush();
- return;
- }
-
-
- /*
- * 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;
-
- /* If the windows are not in the same frame, exchange the sizes to avoid
- * messing up the window layout. Otherwise fix the frame sizes. */
- if (curwin->w_frame->fr_parent != wp->w_frame->fr_parent) {
- temp = curwin->w_height;
- curwin->w_height = wp->w_height;
- wp->w_height = temp;
- temp = curwin->w_width;
- curwin->w_width = wp->w_width;
- wp->w_width = temp;
- } else {
- frame_fix_height(curwin);
- frame_fix_height(wp);
- frame_fix_width(curwin);
- frame_fix_width(wp);
- }
-
- (void)win_comp_pos(); /* recompute window positions */
-
- win_enter(wp, TRUE);
- redraw_later(CLEAR);
-}
-
-/*
- * rotate windows: if upwards TRUE the second window becomes the first one
- * if upwards FALSE the first window becomes the second one
- */
-static void win_rotate(int upwards, int count)
-{
- win_T *wp1;
- win_T *wp2;
- frame_T *frp;
- int n;
-
- if (firstwin == lastwin) { /* nothing to do */
- beep_flush();
- return;
- }
-
-
- /* Check if all frames in this row/col have one window. */
- for (frp = curwin->w_frame->fr_parent->fr_child; frp != NULL;
- frp = frp->fr_next)
- if (frp->fr_win == NULL) {
- EMSG(_("E443: Cannot rotate when another window is split"));
- return;
- }
-
- 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_later(CLEAR);
-}
-
-/*
- * 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 (lastwin == firstwin) {
- beep_flush();
- 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');
- }
-
-}
-
-/*
- * 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) {
- /* may need move the status line/vertical separator of the last window
- * */
- if (win1 == lastwin) {
- height = win1->w_prev->w_status_height;
- win1->w_prev->w_status_height = win1->w_status_height;
- win1->w_status_height = height;
- 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(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);
-}
-
-/*
- * 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(CLEAR);
- }
- } 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 (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) {
- /* If 'winfixwidth' set keep the window width if
- * possible.
- * Watch out for this window being the next_curwin. */
- if (frame_fixed_width(fr)) {
- 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 (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) {
- n = m = 0;
- wincount = 1;
- if (fr->fr_next == NULL)
- /* last frame gets all that remains (avoid roundoff error) */
- new_size = width;
- else if (dir == 'v')
- new_size = fr->fr_width;
- else 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 + (totwincount / 2)) / totwincount;
- if (hnc) { /* add next_curwin size */
- next_curwin_size -= p_wiw - (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 != '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 then 'winheight', use all space for the
- * current window. */
- next_curwin_size = p_wh + room;
- room = 0;
- } else {
- next_curwin_size = -1;
- for (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) {
- /* If 'winfixheight' set keep the window height if
- * possible.
- * Watch out for this window being the next_curwin. */
- if (frame_fixed_height(fr)) {
- n = frame_minheight(fr, NOWIN);
- new_size = fr->fr_height;
- if (frame_has_win(fr, next_curwin)) {
- room += p_wh - p_wmh;
- next_curwin_size = 0;
- if (new_size < p_wh)
- new_size = p_wh;
- } else
- /* These windows don't use up room. */
- totwincount -= (n + (fr->fr_next == NULL
- ? extra_sep : 0)) / (p_wmh + 1);
- room -= new_size - n;
- if (room < 0) {
- new_size += room;
- room = 0;
- }
- fr->fr_newheight = new_size;
- }
- }
- if (next_curwin_size == -1) {
- if (!has_next_curwin)
- next_curwin_size = 0;
- else if (totwincount > 1
- && (room + (totwincount - 2))
- / (totwincount - 1) > p_wh) {
- /* 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 (fr = topfr->fr_child; fr != NULL; fr = fr->fr_next) {
- n = m = 0;
- wincount = 1;
- if (fr->fr_next == NULL)
- /* last frame gets all that remains (avoid roundoff error) */
- new_size = height;
- else if (dir == 'h')
- new_size = fr->fr_height;
- else if (frame_fixed_height(fr)) {
- new_size = fr->fr_newheight;
- wincount = 0; /* doesn't count as a sizeable window */
- } else {
- /* Compute the maximum number of windows vert. in "fr". */
- n = frame_minheight(fr, NOWIN);
- wincount = (n + (fr->fr_next == NULL ? extra_sep : 0))
- / (p_wmh + 1);
- m = frame_minheight(fr, next_curwin);
- if (has_next_curwin)
- hnc = frame_has_win(fr, next_curwin);
- else
- hnc = FALSE;
- if (hnc) /* don't count next_curwin */
- --wincount;
- if (totwincount == 0)
- new_size = room;
- else
- new_size = (wincount * room + (totwincount / 2)) / totwincount;
- if (hnc) { /* add next_curwin size */
- next_curwin_size -= p_wh - (m - n);
- new_size += next_curwin_size;
- room -= new_size - next_curwin_size;
- } else
- room -= new_size;
- new_size += n;
- }
- /* Skip frame that is full width when splitting or closing a
- * window, unless equalizing all frames. */
- if (!current || dir != 'h' || topfr->fr_parent != NULL
- || (new_size != fr->fr_height)
- || frame_has_win(fr, next_curwin))
- win_equal_rec(next_curwin, current, fr, dir, col, row,
- width, new_size);
- row += new_size;
- height -= new_size;
- totwincount -= wincount;
- }
- }
-}
-
-/*
- * close all windows for buffer 'buf'
- */
-void
-close_windows (
- buf_T *buf,
- int keep_curwin /* don't close "curwin" */
-)
-{
- win_T *wp;
- tabpage_T *tp, *nexttp;
- int h = tabline_height();
-
- ++RedrawingDisabled;
-
- for (wp = firstwin; wp != NULL && lastwin != firstwin; ) {
- if (wp->w_buffer == buf && (!keep_curwin || wp != curwin)
- && !(wp->w_closing || wp->w_buffer->b_closing)
- ) {
- win_close(wp, FALSE);
-
- /* 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 (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next)
- if (wp->w_buffer == buf
- && !(wp->w_closing || wp->w_buffer->b_closing)
- ) {
- 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;
-
- redraw_tabline = TRUE;
- if (h != tabline_height())
- shell_new_rows();
-}
-
-/*
- * 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 (wp != aucmd_win) {
- 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 (firstwin == lastwin) {
- 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);
- redraw_tabline = 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) {
- int h = tabline_height();
-
- win_close_othertab(win, free_buf, prev_curtab);
- if (h != tabline_height())
- shell_new_rows();
- }
- /* Since goto_tabpage_tp above did not trigger *Enter autocommands, do
- * that now. */
- 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;
- }
- return FALSE;
-}
-
-/*
- * 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;
-
- if (last_window()) {
- EMSG(_("E444: Cannot close last window"));
- return FAIL;
- }
-
- if (win->w_closing || (win->w_buffer != NULL && win->w_buffer->b_closing))
- return FAIL; /* window is already being closed */
- if (win == aucmd_win) {
- EMSG(_("E813: Cannot close autocmd window"));
- return FAIL;
- }
- if ((firstwin == aucmd_win || lastwin == aucmd_win) && one_window()) {
- EMSG(_("E814: 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 (win->w_buffer != NULL && win->w_buffer->b_help)
- help_window = TRUE;
- else
- clear_snapshot(curtab, SNAP_HELP_IDX);
-
- if (win == curwin) {
- /*
- * Guess which window is going to be the new current window.
- * This may change because of the autocommands (sigh).
- */
- wp = frame2win(win_altframe(win, 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) {
- 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;
- /* autocmds may abort script processing */
- if (aborting())
- return FAIL;
- }
-
-
- /* Free independent synblock before the buffer is freed. */
- if (win->w_buffer != NULL)
- reset_synblock(win);
-
- /*
- * Close the link to the buffer.
- */
- if (win->w_buffer != NULL) {
- win->w_closing = TRUE;
- close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, TRUE);
- if (win_valid(win))
- win->w_closing = FALSE;
- }
-
- 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 close 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 closed the window already, or closed the only
- * other window or moved to another tab page. */
- else if (!win_valid(win) || last_window() || curtab != prev_curtab
- || close_last_window_tabpage(win, free_buf, prev_curtab))
- return FAIL;
-
- /* Free the memory used for the window and get the window that received
- * the screen space. */
- wp = win_free_mem(win, &dir, NULL);
-
- /* 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;
- 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;
- }
- }
- }
- curbuf = curwin->w_buffer;
- close_curwin = TRUE;
- }
- if (p_ea
- && (*p_ead == 'b' || *p_ead == dir)
- )
- win_equal(curwin, TRUE,
- dir
- );
- else
- win_comp_pos();
- if (close_curwin) {
- win_enter_ext(wp, FALSE, TRUE, TRUE, TRUE);
- if (other_buffer)
- /* careful: after this wp and win may be invalid! */
- apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf);
- }
-
- /*
- * If last window has a status line now and we don't want one,
- * remove the status line.
- */
- last_status(FALSE);
-
- /* After closing the help window, try restoring the window layout from
- * before it was opened. */
- if (help_window)
- restore_snapshot(SNAP_HELP_IDX, close_curwin);
-
-
- redraw_all_later(NOT_VALID);
- return OK;
-}
-
-/*
- * 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;
-
- if (win->w_closing || win->w_buffer->b_closing)
- return; /* window is already being closed */
-
- /* Close the link to the buffer. */
- close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, FALSE);
-
- /* 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)
- 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 == NULL ? firstwin == lastwin : tp->tp_firstwin == tp->tp_lastwin) {
- 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) {
- EMSG2(_(e_intern2), "win_close_othertab()");
- return;
- }
- ptp->tp_next = tp->tp_next;
- }
- free_tp = TRUE;
- }
-
- /* 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;
-
- /* Remove the window and its frame from the tree of frames. */
- frp = win->w_frame;
- wp = winframe_remove(win, dirp, tp);
- free(frp);
- win_free(win, tp);
-
- /* When deleting the current window of another tab page select a new
- * current window. */
- if (tp != NULL && win == tp->tp_curwin)
- tp->tp_curwin = wp;
-
- return wp;
-}
-
-#if defined(EXITFREE) || defined(PROTO)
-void win_free_all(void)
-{
- int dummy;
-
- while (first_tabpage->tp_next != NULL)
- tabpage_close(TRUE);
-
- if (aucmd_win != NULL) {
- (void)win_free_mem(aucmd_win, &dummy, NULL);
- aucmd_win = NULL;
- }
-
- while (firstwin != NULL)
- (void)win_free_mem(firstwin, &dummy, 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, /* 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 ? firstwin == lastwin : 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 (frp->fr_win != NULL && !frp->fr_win->w_p_wfh) {
- frp2 = frp;
- wp = frp->fr_win;
- 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 (frp->fr_win != NULL && !frp->fr_win->w_p_wfw) {
- frp2 = frp;
- wp = frp->fr_win;
- 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 = W_WINCOL(win);
-
- frame_comp_pos(frp2, &row, &col);
- }
-
- if (frp2->fr_next == NULL && frp2->fr_prev == NULL) {
- /* There is no other frame in this list, move its info to the parent
- * and remove it. */
- frp2->fr_parent->fr_layout = frp2->fr_layout;
- frp2->fr_parent->fr_child = frp2->fr_child;
- for (frp = frp2->fr_child; frp != NULL; frp = frp->fr_next)
- frp->fr_parent = frp2->fr_parent;
- frp2->fr_parent->fr_win = frp2->fr_win;
- if (frp2->fr_win != NULL)
- frp2->fr_win->w_frame = frp2->fr_parent;
- frp = frp2->fr_parent;
- 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;
- }
- }
- free(frp);
- }
- }
-
- return wp;
-}
-
-/*
- * Find out which frame is going to get the freed up space when "win" is
- * closed.
- * if 'splitbelow'/'splitleft' the space goes to the window above/left.
- * if 'nosplitbelow'/'nosplitleft' the space goes to the window below/right.
- * This makes opening a window and closing it immediately keep the same window
- * layout.
- */
-static frame_T *
-win_altframe (
- win_T *win,
- tabpage_T *tp /* tab page "win" is in, NULL for current */
-)
-{
- frame_T *frp;
- int b;
-
- if (tp == NULL ? firstwin == lastwin : tp->tp_firstwin == tp->tp_lastwin)
- /* Last window in this tab page, will go to next tab page. */
- return alt_tabpage()->tp_curwin->w_frame;
-
- frp = win->w_frame;
- if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW)
- b = p_spr;
- else
- b = p_sb;
- if ((!b && frp->fr_next != NULL) || frp->fr_prev == NULL)
- return frp->fr_next;
- return frp->fr_prev;
-}
-
-/*
- * 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 (p = frp->fr_child; p != NULL; p = p->fr_next)
- if (frame_has_win(p, wp))
- return TRUE;
- return FALSE;
-}
-
-/*
- * Set a new height for a frame. Recursively sets the height for contained
- * frames and windows. Caller must take care of positions.
- */
-static void
-frame_new_height (
- 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);
- } else if (topfrp->fr_layout == FR_ROW) {
- do {
- /* All frames in this row get the same new height. */
- for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) {
- frame_new_height(frp, height, topfirst, wfh);
- if (frp->fr_height > height) {
- /* Could not fit the windows, make the whole row higher. */
- height = frp->fr_height;
- break;
- }
- }
- } while (frp != NULL);
- } 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 (frp = frp->fr_child; frp != NULL; frp = frp->fr_next)
- if (frame_fixed_height(frp))
- return TRUE;
- return FALSE;
- }
-
- /* frp->fr_layout == FR_COL: The frame is fixed height if all of the
- * frames in the row are fixed height. */
- for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next)
- if (!frame_fixed_height(frp))
- return FALSE;
- return TRUE;
-}
-
-/*
- * 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 (frp = frp->fr_child; frp != NULL; frp = frp->fr_next)
- 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 (frp = frp->fr_child; frp != NULL; frp = frp->fr_next)
- 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 (frp = frp->fr_child; frp != NULL; frp = frp->fr_next)
- frame_add_statusline(frp);
- } else { /* frp->fr_layout == FR_COL */
- /* Only need to handle the last frame in the column. */
- for (frp = frp->fr_child; frp->fr_next != NULL; frp = frp->fr_next)
- ;
- frame_add_statusline(frp);
- }
-}
-
-/*
- * Set width of a frame. Handles recursively going through contained frames.
- * May remove separator line for windows at the right side (for win_close()).
- */
-static void
-frame_new_width (
- 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 (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) {
- 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 (frp = frp->fr_child; frp != NULL; frp = frp->fr_next)
- frame_add_vsep(frp);
- } else { /* frp->fr_layout == FR_ROW */
- /* Only need to handle the last frame in the row. */
- frp = frp->fr_child;
- while (frp->fr_next != NULL)
- frp = frp->fr_next;
- frame_add_vsep(frp);
- }
-}
-
-/*
- * Set frame width from the window it contains.
- */
-static void frame_fix_width(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 = wp->w_height + wp->w_status_height;
-}
-
-/*
- * Compute the minimal height for frame "topfrp".
- * Uses the 'winminheight' option.
- * When "next_curwin" isn't NULL, use p_wh for this window.
- * When "next_curwin" is NOWIN, don't use at least one line for the current
- * window.
- */
-static int frame_minheight(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;
- /* Current window is minimal one line high */
- if (p_wmh == 0 && topfrp->fr_win == curwin && next_curwin == NULL)
- ++m;
- }
- } else if (topfrp->fr_layout == FR_ROW) {
- /* get the minimal height from each frame in this row */
- m = 0;
- for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) {
- n = frame_minheight(frp, next_curwin);
- if (n > m)
- m = n;
- }
- } else {
- /* Add up the minimal heights for all frames in this column. */
- m = 0;
- for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next)
- m += frame_minheight(frp, next_curwin);
- }
-
- return m;
-}
-
-/*
- * 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 (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) {
- n = frame_minwidth(frp, next_curwin);
- if (n > m)
- m = n;
- }
- } else {
- /* Add up the minimal widths for all frames in this row. */
- m = 0;
- for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next)
- m += frame_minwidth(frp, next_curwin);
- }
-
- return m;
-}
-
-
-/*
- * 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 */
-
- /* 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 (message && (p_confirm || cmdmod.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))
- continue;
- }
- win_close(wp, !P_HID(wp->w_buffer) && !bufIsChanged(wp->w_buffer));
- }
- }
-
- if (message && lastwin != firstwin)
- EMSG(_("E445: Other window contains changes"));
-}
-
-
-/*
- * Init the current window "curwin".
- * Called when a new file is being edited.
- */
-void curwin_init(void)
-{
- win_init_empty(curwin);
-}
-
-void win_init_empty(win_T *wp)
-{
- redraw_win_later(wp, NOT_VALID);
- wp->w_lines_valid = 0;
- wp->w_cursor.lnum = 1;
- wp->w_curswant = wp->w_cursor.col = 0;
- 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;
- wp->w_topfill = 0;
- wp->w_botline = 2;
- if (wp->w_p_rl)
- wp->w_farsi = W_CONV + W_R_L;
- else
- wp->w_farsi = W_CONV;
- wp->w_s = &wp->w_buffer->b_s;
-}
-
-/*
- * Allocate the first window and put an empty buffer in it.
- * Called from main().
- *
- * Return FAIL when something goes wrong.
- */
-int win_alloc_first(void)
-{
- if (win_alloc_firstwin(NULL) == FAIL)
- return FAIL;
-
- first_tabpage = alloc_tabpage();
- first_tabpage->tp_topframe = topframe;
- curtab = first_tabpage;
-
- return OK;
-}
-
-/*
- * Init "aucmd_win". This can only be done after the first
- * window is fully initialized, thus it can't be in win_alloc_first().
- */
-void win_alloc_aucmd_win(void)
-{
- aucmd_win = win_alloc(NULL, TRUE);
- win_init_some(aucmd_win, curwin);
- RESET_BINDING(aucmd_win);
- new_frame(aucmd_win);
-}
-
-/*
- * 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 (only with
- * FEAT_WINDOWS).
- * Return FAIL when something goes wrong (out of memory).
- */
-static int win_alloc_firstwin(win_T *oldwin)
-{
- curwin = win_alloc(NULL, FALSE);
- 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 (curbuf == NULL)
- return FAIL;
- curwin->w_buffer = curbuf;
- curwin->w_s = &(curbuf->b_s);
- 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);
- topframe = curwin->w_frame;
- topframe->fr_width = Columns;
- topframe->fr_height = Rows - p_ch;
- topframe->fr_win = curwin;
-
- return OK;
-}
-
-/*
- * Create a frame for window "wp".
- */
-static void new_frame(win_T *wp)
-{
- frame_T *frp = xcalloc(1, sizeof(frame_T));
-
- wp->w_frame = frp;
- 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;
- topframe->fr_height = ROWS_AVAIL;
- firstwin->w_width = Columns;
- topframe->fr_width = Columns;
-}
-
-/*
- * Allocate a new tabpage_T and init the values.
- */
-static tabpage_T *alloc_tabpage(void)
-{
- tabpage_T *tp = xcalloc(1, sizeof(tabpage_T));
-
- /* init t: variables */
- tp->tp_vars = dict_alloc();
- init_var_dict(tp->tp_vars, &tp->tp_winvar, VAR_SCOPE);
- tp->tp_diff_invalid = TRUE;
- tp->tp_ch_used = p_ch;
-
- return tp;
-}
-
-void free_tabpage(tabpage_T *tp)
-{
- int idx;
-
- diff_clear(tp);
- for (idx = 0; idx < SNAP_COUNT; ++idx)
- clear_snapshot(tp, idx);
- vars_clear(&tp->tp_vars->dv_hashtab); /* free all t: variables */
- hash_init(&tp->tp_vars->dv_hashtab);
- unref_var_dict(tp->tp_vars);
-
-
-
- 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 *newtp;
- int n;
-
- newtp = alloc_tabpage();
-
- /* Remember the current windows in this Tab page. */
- if (leave_tabpage(curbuf, TRUE) == FAIL) {
- free(newtp);
- return FAIL;
- }
- curtab = newtp;
-
- /* 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;
- }
- win_init_size();
- firstwin->w_winrow = tabline_height();
- win_comp_scroll(curwin);
-
- newtp->tp_topframe = topframe;
- last_status(FALSE);
-
-
- redraw_all_later(CLEAR);
- apply_autocmds(EVENT_WINENTER, 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.
- */
-int may_open_tabpage(void)
-{
- int n = (cmdmod.tab == 0) ? postponed_split_tab : cmdmod.tab;
-
- if (n != 0) {
- cmdmod.tab = 0; /* reset it to avoid doing it twice */
- postponed_split_tab = 0;
- return win_new_tabpage(n);
- }
- return FAIL;
-}
-
-/*
- * 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 (tp = first_tabpage; tp != NULL; tp = tp->tp_next)
- if (tp == tpc)
- return TRUE;
- return FALSE;
-}
-
-/*
- * 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;
-
- 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, /* what is going to be the new curbuf,
- NULL if unknown */
- int trigger_leave_autocmds
-)
-{
- tabpage_T *tp = curtab;
-
- 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;
- }
- tp->tp_curwin = curwin;
- tp->tp_prevwin = prevwin;
- tp->tp_firstwin = firstwin;
- tp->tp_lastwin = lastwin;
- tp->tp_old_Rows = Rows;
- 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, int trigger_enter_autocmds, int trigger_leave_autocmds)
-{
- int old_off = tp->tp_firstwin->w_winrow;
- win_T *next_prevwin = tp->tp_prevwin;
-
- curtab = tp;
- firstwin = tp->tp_firstwin;
- lastwin = tp->tp_lastwin;
- topframe = tp->tp_topframe;
-
- /* 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. */
- win_enter_ext(tp->tp_curwin, FALSE, TRUE,
- trigger_enter_autocmds, trigger_leave_autocmds);
- prevwin = next_prevwin;
-
- last_status(FALSE); /* status line may appear or disappear */
- (void)win_comp_pos(); /* recompute w_winrow for all windows */
- must_redraw = CLEAR; /* need to redraw everything */
- diff_need_scrollbind = TRUE;
-
- /* 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. Use the stored value of p_ch, so that it can be
- * different for each tab page. */
- p_ch = curtab->tp_ch_used;
- if (curtab->tp_old_Rows != Rows || (old_off != firstwin->w_winrow
- ))
- shell_new_rows();
- if (curtab->tp_old_Columns != Columns && starting == 0)
- shell_new_columns(); /* update window widths */
-
-
- /* 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(CLEAR);
-}
-
-/*
- * 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;
- tabpage_T *ttp;
- int i;
-
- if (text_locked()) {
- /* Not allowed when editing the command line. */
- if (cmdwin_type != 0)
- EMSG(_(e_cmdwin));
- else
- EMSG(_(e_secure));
- 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);
-
-}
-
-/*
- * 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)
-{
- /* Don't repeat a message in another tab page. */
- set_keep_msg(NULL, 0);
-
- 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);
- }
-}
-
-/*
- * 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);
- }
-}
-
-/*
- * Move the current tab page to before tab page "nr".
- */
-void tabpage_move(int nr)
-{
- int n = nr;
- tabpage_T *tp;
-
- if (first_tabpage->tp_next == NULL)
- return;
-
- /* Remove the current tab page from the list of tab pages. */
- if (curtab == first_tabpage)
- first_tabpage = curtab->tp_next;
- else {
- for (tp = first_tabpage; tp != NULL; tp = tp->tp_next)
- 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 (n <= 0) {
- curtab->tp_next = first_tabpage;
- first_tabpage = curtab;
- } else {
- for (tp = first_tabpage; tp->tp_next != NULL && n > 1; tp = tp->tp_next)
- --n;
- curtab->tp_next = tp->tp_next;
- tp->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)
-{
- win_T *owp = curwin;
-
- if (text_locked()) {
- beep_flush();
- text_locked_msg();
- return;
- }
- if (curbuf_locked())
- return;
-
- if (wp->w_buffer != curbuf)
- reset_VIsual_and_resel();
- else if (VIsual_active)
- wp->w_cursor = curwin->w_cursor;
-
- win_enter(wp, TRUE);
-
- /* Conceal cursor line in previous window, unconceal in current window. */
- if (win_valid(owp) && owp->w_p_cole > 0 && !msg_scrolled)
- update_single_line(owp, owp->w_cursor.lnum);
- if (curwin->w_p_cole > 0 && !msg_scrolled)
- need_cursor_line_redraw = TRUE;
-}
-
-
-/*
- * Find the tabpage for window "win".
- */
-tabpage_T *win_find_tabpage(win_T *win)
-{
- win_T *wp;
- tabpage_T *tp;
-
- for (tp = first_tabpage; tp != NULL; tp = tp->tp_next)
- for (wp = (tp == curtab ? firstwin : tp->tp_firstwin);
- wp != NULL; wp = wp->w_next)
- if (wp == win)
- return tp;
- return NULL;
-}
-
-/*
- * Move to window above or below "count" times.
- */
-static void
-win_goto_ver (
- int up, /* TRUE to go to win above */
- long count
-)
-{
- frame_T *fr;
- frame_T *nfr;
- frame_T *foundfr;
-
- foundfr = curwin->w_frame;
- while (count--) {
- /*
- * First go upwards in the tree of frames until we find a upwards or
- * downwards neighbor.
- */
- fr = foundfr;
- for (;; ) {
- if (fr == topframe)
- goto end;
- if (up)
- nfr = fr->fr_prev;
- else
- nfr = fr->fr_next;
- if (fr->fr_parent->fr_layout == FR_COL && nfr != NULL)
- break;
- fr = fr->fr_parent;
- }
-
- /*
- * Now go downwards to find the bottom or top frame in it.
- */
- for (;; ) {
- if (nfr->fr_layout == FR_LEAF) {
- foundfr = nfr;
- break;
- }
- fr = nfr->fr_child;
- if (nfr->fr_layout == FR_ROW) {
- /* Find the frame at the cursor row. */
- while (fr->fr_next != NULL
- && frame2win(fr)->w_wincol + fr->fr_width
- <= curwin->w_wincol + curwin->w_wcol)
- fr = fr->fr_next;
- }
- if (nfr->fr_layout == FR_COL && up)
- while (fr->fr_next != NULL)
- fr = fr->fr_next;
- nfr = fr;
- }
- }
-end:
- if (foundfr != NULL)
- win_goto(foundfr->fr_win);
-}
-
-/*
- * Move to left or right window.
- */
-static void
-win_goto_hor (
- int left, /* TRUE to go to left win */
- long count
-)
-{
- frame_T *fr;
- frame_T *nfr;
- frame_T *foundfr;
-
- foundfr = curwin->w_frame;
- while (count--) {
- /*
- * First go upwards in the tree of frames until we find a left or
- * right neighbor.
- */
- fr = foundfr;
- for (;; ) {
- if (fr == topframe)
- goto end;
- if (left)
- nfr = fr->fr_prev;
- else
- nfr = fr->fr_next;
- if (fr->fr_parent->fr_layout == FR_ROW && nfr != NULL)
- break;
- fr = fr->fr_parent;
- }
-
- /*
- * Now go downwards to find the leftmost or rightmost frame in it.
- */
- for (;; ) {
- if (nfr->fr_layout == FR_LEAF) {
- foundfr = nfr;
- break;
- }
- fr = nfr->fr_child;
- if (nfr->fr_layout == FR_COL) {
- /* Find the frame at the cursor row. */
- while (fr->fr_next != NULL
- && frame2win(fr)->w_winrow + fr->fr_height
- <= curwin->w_winrow + curwin->w_wrow)
- fr = fr->fr_next;
- }
- if (nfr->fr_layout == FR_ROW && left)
- while (fr->fr_next != NULL)
- fr = fr->fr_next;
- nfr = fr;
- }
- }
-end:
- if (foundfr != NULL)
- win_goto(foundfr->fr_win);
-}
-
-/*
- * Make window "wp" the current window.
- */
-void win_enter(win_T *wp, int undo_sync)
-{
- win_enter_ext(wp, undo_sync, FALSE, TRUE, TRUE);
-}
-
-/*
- * Make window wp the current window.
- * Can be called with "curwin_invalid" TRUE, which means that curwin has just
- * been closed and isn't valid.
- */
-static void win_enter_ext(win_T *wp, int undo_sync, int curwin_invalid, int trigger_enter_autocmds, int trigger_leave_autocmds)
-{
- int other_buffer = FALSE;
-
- if (wp == curwin && !curwin_invalid) /* nothing to do */
- return;
-
- if (!curwin_invalid && 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;
- }
- apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf);
- if (!win_valid(wp))
- return;
- /* autocmds may abort script processing */
- if (aborting())
- return;
- }
-
- /* sync undo before leaving the current buffer */
- if (undo_sync && curbuf != wp->w_buffer)
- u_sync(FALSE);
- /* may have to copy the buffer options when 'cpo' contains 'S' */
- if (wp->w_buffer != curbuf)
- buf_copy_options(wp->w_buffer, BCO_ENTER | BCO_NOHELP);
- if (!curwin_invalid) {
- prevwin = curwin; /* remember for CTRL-W p */
- curwin->w_redr_status = TRUE;
- }
- curwin = wp;
- curbuf = wp->w_buffer;
- check_cursor();
- if (!virtual_active())
- curwin->w_cursor.coladd = 0;
- changed_line_abv_curs(); /* assume cursor position needs updating */
-
- if (curwin->w_localdir != NULL) {
- /* Window has a local directory: Save current directory as global
- * directory (unless that was done already) and change to the local
- * directory. */
- if (globaldir == NULL) {
- char_u cwd[MAXPATHL];
-
- if (os_dirname(cwd, MAXPATHL) == OK)
- globaldir = vim_strsave(cwd);
- }
- if (os_chdir((char *)curwin->w_localdir) == 0)
- 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. */
- ignored = os_chdir((char *)globaldir);
- free(globaldir);
- globaldir = NULL;
- shorten_fnames(TRUE);
- }
-
- if (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;
- redraw_tabline = TRUE;
- if (restart_edit)
- redraw_later(VALID); /* causes status line redraw */
-
- /* set window height to desired minimal value */
- if (curwin->w_height < p_wh && !curwin->w_p_wfh)
- win_setheight((int)p_wh);
- else if (curwin->w_height == 0)
- win_setheight(1);
-
- /* 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();
-}
-
-
-/*
- * 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;
-
- for (wp = firstwin; wp != NULL; wp = wp->w_next)
- 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.
- * Returns a pointer to the window found, otherwise NULL.
- */
-win_T *buf_jump_open_tab(buf_T *buf)
-{
- win_T *wp;
- tabpage_T *tp;
-
- /* First try the current tab page. */
- wp = buf_jump_open_win(buf);
- if (wp != NULL)
- return wp;
-
- for (tp = first_tabpage; tp != NULL; tp = tp->tp_next)
- if (tp != curtab) {
- for (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next)
- 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;
-}
-
-/*
- * 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)
-{
- /*
- * allocate window structure and linesizes arrays
- */
- win_T *new_wp = xcalloc(1, sizeof(win_T));
- win_alloc_lines(new_wp);
-
- /* init w: variables */
- new_wp->w_vars = dict_alloc();
- init_var_dict(new_wp->w_vars, &new_wp->w_winvar, VAR_SCOPE);
-
- /* 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;
- new_wp->w_topfill = 0;
- new_wp->w_botline = 2;
- new_wp->w_cursor.lnum = 1;
- new_wp->w_scbind_pos = 1;
-
- /* We won't calculate w_fraction until resizing the window */
- new_wp->w_fraction = 0;
- new_wp->w_prev_fraction_row = -1;
-
- foldInitWin(new_wp);
- unblock_autocmds();
- new_wp->w_match_head = NULL;
- new_wp->w_next_match_id = 4;
- 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;
-
- clearFolding(wp);
-
- /* 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();
-
-
-
-
-
-
-
-
- clear_winopt(&wp->w_onebuf_opt);
- clear_winopt(&wp->w_allbuf_opt);
-
- vars_clear(&wp->w_vars->dv_hashtab); /* free all w: variables */
- hash_init(&wp->w_vars->dv_hashtab);
- unref_var_dict(wp->w_vars);
-
- if (prevwin == wp)
- prevwin = NULL;
- win_free_lsize(wp);
-
- for (i = 0; i < wp->w_tagstacklen; ++i)
- free(wp->w_tagstack[i].tagname);
-
- free(wp->w_localdir);
-
- /* Remove the window from the b_wininfo lists, it may happen that the
- * freed memory is re-used for another window. */
- for (buf = firstbuf; buf != NULL; buf = buf->b_next)
- for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next)
- if (wip->wi_win == wp)
- wip->wi_win = NULL;
-
- clear_matches(wp);
-
- free_jumplist(wp);
-
- qf_free_all(wp);
-
-
- free(wp->w_p_cc_cols);
-
- if (wp != aucmd_win)
- win_remove(wp, tp);
- free(wp);
-
- unblock_autocmds();
-}
-
-/*
- * Append window "wp" in the window list after window "after".
- */
-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 = 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 = 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".
- */
-void win_alloc_lines(win_T *wp)
-{
- wp->w_lines_valid = 0;
- assert(Rows >= 0);
- wp->w_lines = xcalloc(Rows, sizeof(wline_T));
-}
-
-/*
- * free lsize arrays for a window
- */
-void win_free_lsize(win_T *wp)
-{
- free(wp->w_lines);
- wp->w_lines = NULL;
-}
-
-/*
- * 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;
-
-}
-
-/*
- * 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 */
-}
-
-/*
- * Save the size of all windows in "gap".
- */
-void win_size_save(garray_T *gap)
-
-{
- win_T *wp;
-
- ga_init(gap, (int)sizeof(int), 1);
- ga_grow(gap, win_count() * 2);
- for (wp = firstwin; wp != NULL; wp = wp->w_next) {
- ((int *)gap->ga_data)[gap->ga_len++] =
- wp->w_width + wp->w_vsep_width;
- ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height;
- }
-}
-
-/*
- * Restore window sizes, but only if the number of windows is still the same.
- * Does not free the growarray.
- */
-void win_size_restore(garray_T *gap)
-{
- win_T *wp;
- int i;
-
- if (win_count() * 2 == gap->ga_len) {
- i = 0;
- for (wp = firstwin; wp != NULL; wp = wp->w_next) {
- frame_setwidth(wp->w_frame, ((int *)gap->ga_data)[i++]);
- win_setheight_win(((int *)gap->ga_data)[i++], wp);
- }
- /* recompute the window positions */
- (void)win_comp_pos();
- }
-}
-
-/*
- * 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;
-
- 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, NOT_VALID);
- wp->w_redr_status = TRUE;
- }
- *row += wp->w_height + wp->w_status_height;
- *col += wp->w_width + wp->w_vsep_width;
- } else {
- startrow = *row;
- startcol = *col;
- for (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next) {
- 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);
- }
- }
-}
-
-
-/*
- * 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;
- }
-
- 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;
-
- redraw_all_later(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 */
- 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 (frp = curfrp->fr_parent->fr_child; frp != NULL;
- frp = frp->fr_next) {
- if (frp != curfrp
- && frp->fr_win != NULL
- && frp->fr_win->w_p_wfh)
- room_reserved += frp->fr_height;
- room += frp->fr_height;
- if (frp != curfrp)
- room -= frame_minheight(frp, NULL);
- }
- if (curfrp->fr_width != Columns)
- room_cmdline = 0;
- else {
- room_cmdline = Rows - p_ch - (lastwin->w_winrow
- + lastwin->w_height +
- lastwin->w_status_height);
- if (room_cmdline < 0)
- room_cmdline = 0;
- }
-
- if (height <= room + room_cmdline)
- break;
- if (run == 2 || curfrp->fr_width == Columns) {
- if (height > room + room_cmdline)
- height = room + room_cmdline;
- break;
- }
- frame_setheight(curfrp->fr_parent, height
- + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1);
- /*NOTREACHED*/
- }
-
- /*
- * Compute the number of lines we will take from others frames (can be
- * negative!).
- */
- take = height - curfrp->fr_height;
-
- /* If there is not enough room, also reduce the height of a window
- * with 'winfixheight' set. */
- if (height > room + room_cmdline - room_reserved)
- room_reserved = room + room_cmdline - height;
- /* If there is only a 'winfixheight' window and making the
- * window smaller, need to make the other window taller. */
- if (take < 0 && room - curfrp->fr_height < room_reserved)
- room_reserved = 0;
-
- if (take > 0 && room_cmdline > 0) {
- /* use lines from cmdline first */
- if (take < room_cmdline)
- room_cmdline = take;
- take -= room_cmdline;
- topframe->fr_height += room_cmdline;
- }
-
- /*
- * set the current frame to the new height
- */
- frame_new_height(curfrp, height, FALSE, FALSE);
-
- /*
- * First take lines from the frames after the current frame. If
- * that is not enough, takes lines from frames above the current
- * frame.
- */
- for (run = 0; run < 2; ++run) {
- if (run == 0)
- frp = curfrp->fr_next; /* 1st run: start with next window */
- else
- frp = curfrp->fr_prev; /* 2nd run: start with prev window */
- while (frp != NULL && take != 0) {
- h = frame_minheight(frp, NULL);
- if (room_reserved > 0
- && frp->fr_win != NULL
- && frp->fr_win->w_p_wfh) {
- if (room_reserved >= frp->fr_height)
- room_reserved -= frp->fr_height;
- else {
- if (frp->fr_height - room_reserved > take)
- room_reserved = frp->fr_height - take;
- take -= frp->fr_height - room_reserved;
- frame_new_height(frp, room_reserved, FALSE, FALSE);
- room_reserved = 0;
- }
- } else {
- if (frp->fr_height - take < h) {
- take -= frp->fr_height - h;
- frame_new_height(frp, h, FALSE, FALSE);
- } else {
- frame_new_height(frp, frp->fr_height - take,
- FALSE, FALSE);
- take = 0;
- }
- }
- if (run == 0)
- frp = frp->fr_next;
- else
- frp = frp->fr_prev;
- }
- }
- }
-}
-
-/*
- * 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;
- }
-
- frame_setwidth(wp->w_frame, width + wp->w_vsep_width);
-
- /* recompute the window positions */
- (void)win_comp_pos();
-
- redraw_all_later(NOT_VALID);
-}
-
-/*
- * Set the width of a frame to "width" and take care that all frames and
- * windows inside it are resized. Also resize frames above and below if the
- * are in the same FR_ROW frame.
- *
- * Strategy is similar to frame_setheight().
- */
-static void frame_setwidth(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 (frp = curfrp->fr_parent->fr_child; frp != NULL;
- frp = frp->fr_next) {
- 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) {
- if (width > room)
- width = room;
- break;
- }
- frame_setwidth(curfrp->fr_parent, width
- + frame_minwidth(curfrp->fr_parent, NOWIN) - (int)p_wmw - 1);
- }
-
- /*
- * Compute the number of lines we will take from others frames (can be
- * negative!).
- */
- take = width - curfrp->fr_width;
-
- /* 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.
- */
-void win_setminheight(void)
-{
- int room;
- int first = TRUE;
- win_T *wp;
-
- /* loop until there is a 'winminheight' that is possible */
- while (p_wmh > 0) {
- /* TODO: handle vertical splits */
- room = -p_wh;
- for (wp = firstwin; wp != NULL; wp = wp->w_next)
- room += wp->w_height - p_wmh;
- if (room >= 0)
- break;
- --p_wmh;
- if (first) {
- EMSG(_(e_noroom));
- first = FALSE;
- }
- }
-}
-
-/*
- * 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 -= 1;
- else
- room -= p_ch;
- if (room < 0)
- room = 0;
- /* sum up the room of frames below of the current one */
- for (fr = curfr->fr_next; fr != NULL; fr = fr->fr_next)
- room += fr->fr_height - frame_minheight(fr, NULL);
- fr = curfr; /* put fr at window that grows */
- }
-
- if (room < offset) /* Not enough room */
- offset = room; /* Move as far as we can */
- if (offset <= 0)
- return;
-
- /*
- * Grow frame fr by "offset" lines.
- * Doesn't happen when dragging the last status line up.
- */
- if (fr != NULL)
- frame_new_height(fr, fr->fr_height + offset, up, FALSE);
-
- if (up)
- fr = curfr; /* current frame gets smaller */
- else
- fr = curfr->fr_next; /* next frame gets smaller */
-
- /*
- * Now make the other frames smaller.
- */
- while (fr != NULL && offset > 0) {
- n = frame_minheight(fr, NULL);
- if (fr->fr_height - offset <= n) {
- offset -= fr->fr_height - n;
- frame_new_height(fr, n, !up, FALSE);
- } else {
- frame_new_height(fr, fr->fr_height - offset, !up, FALSE);
- break;
- }
- if (up)
- fr = fr->fr_prev;
- else
- fr = fr->fr_next;
- }
- row = win_comp_pos();
- screen_fill(row, cmdline_row, 0, (int)Columns, ' ', ' ', 0);
- cmdline_row = row;
- p_ch = Rows - cmdline_row;
- if (p_ch < 1)
- p_ch = 1;
- curtab->tp_ch_used = p_ch;
- redraw_all_later(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 (fr = curfr->fr_next; fr != NULL; fr = fr->fr_next)
- room += fr->fr_width - frame_minwidth(fr, NULL);
- fr = curfr; /* put fr at window that grows */
- }
-
- if (room < offset) /* Not enough room */
- offset = room; /* Move as far as we can */
- if (offset <= 0) /* No room at all, quit. */
- return;
-
- /* grow frame fr by offset lines */
- frame_new_width(fr, fr->fr_width + offset, left, 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(NOT_VALID);
-}
-
-
-#define FRACTION_MULT 16384L
-
-/*
- * Set wp->w_fraction for the current w_wrow and w_height.
- */
-static void set_fraction(win_T *wp)
-{
- wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT
- + FRACTION_MULT / 2) / (long)wp->w_height;
-}
-
-/*
- * Set the height of a window.
- * This takes care of the things inside the window, not what happens to the
- * window position, the frame or to other windows.
- */
-void win_new_height(win_T *wp, int height)
-{
- linenr_T lnum;
- int sline, line_size;
-
- /* 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_wrow != wp->w_prev_fraction_row && wp->w_height > 0)
- set_fraction(wp);
-
- wp->w_height = height;
- wp->w_skipcol = 0;
-
- /* Don't change w_topline when height is zero. Don't set w_topline when
- * 'scrollbind' is set and this isn't the current window. */
- if (height > 0
- && (!wp->w_p_scb || wp == curwin)
- ) {
- /*
- * 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
- && (W_WIDTH(wp) - win_col_off(wp)) > 0) {
- wp->w_skipcol += W_WIDTH(wp) - win_col_off(wp);
- --wp->w_wrow;
- while (wp->w_wrow >= wp->w_height) {
- wp->w_skipcol += W_WIDTH(wp) - win_col_off(wp)
- + win_col_off2(wp);
- --wp->w_wrow;
- }
- }
- } else {
- while (sline > 0 && lnum > 1) {
- hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL);
- if (lnum == 1) {
- /* first line in buffer is folded */
- line_size = 1;
- --sline;
- break;
- }
- --lnum;
- if (lnum == wp->w_topline)
- line_size = plines_win_nofill(wp, lnum, TRUE)
- + wp->w_topfill;
- else
- 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.
- */
- hasFoldingWin(wp, lnum, NULL, &lnum, TRUE, NULL);
- lnum++;
- wp->w_wrow -= line_size + sline;
- } else if (sline > 0) {
- /* First line of file reached, use that as topline. */
- lnum = 1;
- wp->w_wrow -= sline;
- }
- }
- set_topline(wp, lnum);
- }
-
- if (wp == curwin) {
- if (p_so)
- update_topline();
- curs_columns(FALSE); /* validate w_wrow */
- }
- wp->w_prev_fraction_row = wp->w_wrow;
-
- win_comp_scroll(wp);
- redraw_win_later(wp, SOME_VALID);
- wp->w_redr_status = TRUE;
- invalidate_botline_win(wp);
-}
-
-/*
- * Set the width of a window.
- */
-void win_new_width(win_T *wp, int width)
-{
- wp->w_width = width;
- wp->w_lines_valid = 0;
- changed_line_abv_curs_win(wp);
- invalidate_botline_win(wp);
- if (wp == curwin) {
- update_topline();
- curs_columns(TRUE); /* validate w_wrow */
- }
- redraw_win_later(wp, NOT_VALID);
- wp->w_redr_status = TRUE;
-}
-
-void win_comp_scroll(win_T *wp)
-{
- wp->w_p_scr = wp->w_height / 2;
- if (wp->w_p_scr == 0)
- wp->w_p_scr = 1;
-}
-
-/*
- * 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;
-
- /* 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_noroom));
- 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((int)(cmdline_row), (int)Rows, 0,
- (int)Columns, ' ', ' ', 0);
- msg_row = cmdline_row;
- redraw_cmdline = TRUE;
- return;
- }
-
- if (msg_row < cmdline_row)
- msg_row = cmdline_row;
- redraw_cmdline = TRUE;
- }
- frame_add_height(frp, (int)(old_p_ch - p_ch));
-
- /* Recompute window positions. */
- if (frp != lastwin->w_frame)
- (void)win_comp_pos();
-}
-
-/*
- * 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;
- }
-}
-
-/*
- * Get the file name at the cursor.
- * If Visual mode is active, use the selected text if it's in one line.
- * Returns the name in allocated memory, NULL for failure.
- */
-char_u *grab_file_name(long count, linenr_T *file_lnum)
-{
- if (VIsual_active) {
- int len;
- char_u *ptr;
-
- if (get_visual_text(NULL, &ptr, &len) == FAIL)
- return NULL;
- return find_file_name_in_path(ptr, len,
- FNAME_MESS|FNAME_EXP|FNAME_REL, count, curbuf->b_ffname);
- }
- return file_name_at_cursor(FNAME_MESS|FNAME_HYP|FNAME_EXP|FNAME_REL, count,
- file_lnum);
-
-}
-
-/*
- * Return the file name under or after the cursor.
- *
- * The 'path' option is searched if the file name is not absolute.
- * The string returned has been alloc'ed and should be freed by the caller.
- * NULL is returned if the file name or file is not found.
- *
- * options:
- * FNAME_MESS give error messages
- * FNAME_EXP expand to path
- * FNAME_HYP check for hypertext link
- * FNAME_INCL apply "includeexpr"
- */
-char_u *file_name_at_cursor(int options, long count, linenr_T *file_lnum)
-{
- return file_name_in_line(ml_get_curline(),
- curwin->w_cursor.col, options, count, curbuf->b_ffname,
- file_lnum);
-}
-
-/*
- * Return the name of the file under or after ptr[col].
- * Otherwise like file_name_at_cursor().
- */
-char_u *
-file_name_in_line (
- char_u *line,
- int col,
- int options,
- long count,
- char_u *rel_fname, /* file we are searching relative to */
- linenr_T *file_lnum /* line number after the file name */
-)
-{
- char_u *ptr;
- int len;
-
- /*
- * search forward for what could be the start of a file name
- */
- ptr = line + col;
- while (*ptr != NUL && !vim_isfilec(*ptr))
- mb_ptr_adv(ptr);
- if (*ptr == NUL) { /* nothing found */
- if (options & FNAME_MESS)
- EMSG(_("E446: No file name under cursor"));
- return NULL;
- }
-
- /*
- * Search backward for first char of the file name.
- * Go one char back to ":" before "//" even when ':' is not in 'isfname'.
- */
- while (ptr > line) {
- if (has_mbyte && (len = (*mb_head_off)(line, ptr - 1)) > 0)
- ptr -= len + 1;
- else if (vim_isfilec(ptr[-1])
- || ((options & FNAME_HYP) && path_is_url(ptr - 1)))
- --ptr;
- else
- break;
- }
-
- /*
- * Search forward for the last char of the file name.
- * Also allow "://" when ':' is not in 'isfname'.
- */
- len = 0;
- while (vim_isfilec(ptr[len])
- || ((options & FNAME_HYP) && path_is_url(ptr + len)))
- if (has_mbyte)
- len += (*mb_ptr2len)(ptr + len);
- else
- ++len;
-
- /*
- * If there is trailing punctuation, remove it.
- * But don't remove "..", could be a directory name.
- */
- if (len > 2 && vim_strchr((char_u *)".,:;!", ptr[len - 1]) != NULL
- && ptr[len - 2] != '.')
- --len;
-
- if (file_lnum != NULL) {
- char_u *p;
-
- /* Get the number after the file name and a separator character */
- p = ptr + len;
- p = skipwhite(p);
- if (*p != NUL) {
- if (!isdigit(*p))
- ++p; /* skip the separator */
- p = skipwhite(p);
- if (isdigit(*p))
- *file_lnum = (int)getdigits(&p);
- }
- }
-
- return find_file_name_in_path(ptr, len, options, count, rel_fname);
-}
-
-/*
- * 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 || lastwin != firstwin))));
-}
-
-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_noroom));
- return;
- }
- /* In a column of frames: go to frame above. If already at
- * the top or in a row of frames: go to parent. */
- if (fp->fr_parent->fr_layout == FR_COL && fp->fr_prev != NULL)
- fp = fp->fr_prev;
- else
- fp = fp->fr_parent;
- }
- wp->w_status_height = 1;
- if (fp != fr) {
- frame_new_height(fp, fp->fr_height - 1, FALSE, FALSE);
- frame_fix_height(wp);
- (void)win_comp_pos();
- } else
- win_new_height(wp, wp->w_height - 1);
- comp_col();
- redraw_all_later(SOME_VALID);
- }
- } else if (fr->fr_layout == FR_ROW) {
- /* vertically split windows, set status line for each one */
- for (fp = fr->fr_child; fp != NULL; fp = fp->fr_next)
- last_status_rec(fp, statusline);
- } 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)
-{
- 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 (tp = first_tabpage; tp != NULL; tp = tp->tp_next) {
- 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 (in the current tab page), not
- * counting a help or preview window, unless it is the current window.
- * Does not count "aucmd_win".
- */
-int only_one_window(void)
-{
- int count = 0;
- win_T *wp;
-
- /* If there is another tab page there always is another window. */
- if (first_tabpage->tp_next != NULL)
- return FALSE;
-
- for (wp = firstwin; wp != NULL; wp = wp->w_next)
- if (wp->w_buffer != NULL
- && (!((wp->w_buffer->b_help && !curbuf->b_help)
- || wp->w_p_pvw
- ) || wp == curwin)
- && wp != aucmd_win
- )
- ++count;
- return count <= 1;
-}
-
-/*
- * 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)
-{
- win_T *wp;
-
- tabpage_T *tp;
-
- FOR_ALL_TAB_WINDOWS(tp, wp)
- if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) {
- if (wp->w_cursor.lnum > curbuf->b_ml.ml_line_count)
- wp->w_cursor.lnum = curbuf->b_ml.ml_line_count;
- if (wp->w_topline > curbuf->b_ml.ml_line_count)
- wp->w_topline = curbuf->b_ml.ml_line_count;
- }
-}
-
-
-/*
- * 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 = xcalloc(1, sizeof(frame_T));
- (*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) {
- clear_snapshot_rec(fr->fr_next);
- clear_snapshot_rec(fr->fr_child);
- free(fr);
- }
-}
-
-/*
- * Restore a previously created snapshot, if there is any.
- * This is only done if the screen size didn't change and the window layout is
- * still the same.
- */
-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(CLEAR);
- }
- clear_snapshot(curtab, idx);
-}
-
-/*
- * Check if frames "sn" and "fr" have the same layout, same following frames
- * and same children.
- */
-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))
- 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;
-}
-
-
-/*
- * Set "win" to be the curwin and "tp" to be the current tab page.
- * restore_win() MUST be called to undo.
- * No autocommands will be executed.
- * When "no_display" is TRUE the display won't be affected, no redraw is
- * triggered, another tabpage access is limited.
- * Returns FAIL if switching to "win" failed.
- */
-int switch_win(win_T **save_curwin, tabpage_T **save_curtab, win_T *win, tabpage_T *tp, int no_display)
-{
- block_autocmds();
- *save_curwin = curwin;
- if (tp != NULL) {
- *save_curtab = curtab;
- if (no_display) {
- curtab->tp_firstwin = firstwin;
- curtab->tp_lastwin = lastwin;
- curtab = tp;
- firstwin = curtab->tp_firstwin;
- lastwin = curtab->tp_lastwin;
- } else
- goto_tabpage_tp(tp, FALSE, FALSE);
- }
- if (!win_valid(win)) {
- unblock_autocmds();
- return FAIL;
- }
- curwin = win;
- curbuf = curwin->w_buffer;
- return OK;
-}
-
-/*
- * Restore current tabpage and window saved by switch_win(), if still valid.
- * When "no_display" is TRUE the display won't be affected, no redraw is
- * triggered.
- */
-void restore_win(win_T *save_curwin, tabpage_T *save_curtab, int no_display)
-{
- if (save_curtab != NULL && valid_tabpage(save_curtab)) {
- if (no_display) {
- curtab->tp_firstwin = firstwin;
- curtab->tp_lastwin = lastwin;
- curtab = save_curtab;
- firstwin = curtab->tp_firstwin;
- lastwin = curtab->tp_lastwin;
- } else
- goto_tabpage_tp(save_curtab, FALSE, FALSE);
- }
- if (win_valid(save_curwin)) {
- curwin = save_curwin;
- curbuf = curwin->w_buffer;
- }
- unblock_autocmds();
-}
-
-/*
- * Make "buf" the current buffer. restore_buffer() MUST be called to undo.
- * No autocommands will be executed. Use aucmd_prepbuf() if there are any.
- */
-void switch_buffer(buf_T **save_curbuf, buf_T *buf)
-{
- block_autocmds();
- *save_curbuf = curbuf;
- --curbuf->b_nwindows;
- curbuf = buf;
- curwin->w_buffer = buf;
- ++curbuf->b_nwindows;
-}
-
-/*
- * Restore the current buffer after using switch_buffer().
- */
-void restore_buffer(buf_T *save_curbuf)
-{
- unblock_autocmds();
- /* Check for valid buffer, just in case. */
- if (buf_valid(save_curbuf)) {
- --curbuf->b_nwindows;
- curwin->w_buffer = save_curbuf;
- curbuf = save_curbuf;
- ++curbuf->b_nwindows;
- }
-}
-
-
-/*
- * Add match to the match list of window 'wp'. The pattern 'pat' will be
- * highlighted with the group 'grp' with priority 'prio'.
- * Optionally, a desired ID 'id' can be specified (greater than or equal to 1).
- * If no particular ID is desired, -1 must be specified for 'id'.
- * Return ID of added match, -1 on failure.
- */
-int match_add(win_T *wp, char_u *grp, char_u *pat, int prio, int id)
-{
- matchitem_T *cur;
- matchitem_T *prev;
- matchitem_T *m;
- int hlg_id;
- regprog_T *regprog;
-
- if (*grp == NUL || *pat == NUL)
- return -1;
- if (id < -1 || id == 0) {
- EMSGN("E799: Invalid ID: %" PRId64
- " (must be greater than or equal to 1)",
- id);
- return -1;
- }
- if (id != -1) {
- cur = wp->w_match_head;
- while (cur != NULL) {
- if (cur->id == id) {
- EMSGN("E801: ID already taken: %" PRId64, id);
- return -1;
- }
- cur = cur->next;
- }
- }
- if ((hlg_id = syn_namen2id(grp, (int)STRLEN(grp))) == 0) {
- EMSG2(_(e_nogroup), grp);
- return -1;
- }
- if ((regprog = vim_regcomp(pat, RE_MAGIC)) == NULL) {
- EMSG2(_(e_invarg2), pat);
- return -1;
- }
-
- /* Find available match ID. */
- while (id == -1) {
- cur = wp->w_match_head;
- while (cur != NULL && cur->id != wp->w_next_match_id)
- cur = cur->next;
- if (cur == NULL)
- id = wp->w_next_match_id;
- wp->w_next_match_id++;
- }
-
- /* Build new match. */
- m = (matchitem_T *)alloc(sizeof(matchitem_T));
- m->id = id;
- m->priority = prio;
- m->pattern = vim_strsave(pat);
- m->hlg_id = hlg_id;
- m->match.regprog = regprog;
- m->match.rmm_ic = FALSE;
- m->match.rmm_maxcol = 0;
-
- /* Insert new match. The match list is in ascending order with regard to
- * the match priorities. */
- cur = wp->w_match_head;
- prev = cur;
- while (cur != NULL && prio >= cur->priority) {
- prev = cur;
- cur = cur->next;
- }
- if (cur == prev)
- wp->w_match_head = m;
- else
- prev->next = m;
- m->next = cur;
-
- redraw_later(SOME_VALID);
- return id;
-}
-
-/*
- * Delete match with ID 'id' in the match list of window 'wp'.
- * Print error messages if 'perr' is TRUE.
- */
-int match_delete(win_T *wp, int id, int perr)
-{
- matchitem_T *cur = wp->w_match_head;
- matchitem_T *prev = cur;
-
- if (id < 1) {
- if (perr == TRUE)
- EMSGN("E802: Invalid ID: %" PRId64
- " (must be greater than or equal to 1)",
- id);
- return -1;
- }
- while (cur != NULL && cur->id != id) {
- prev = cur;
- cur = cur->next;
- }
- if (cur == NULL) {
- if (perr == TRUE)
- EMSGN("E803: ID not found: %" PRId64, id);
- return -1;
- }
- if (cur == prev)
- wp->w_match_head = cur->next;
- else
- prev->next = cur->next;
- vim_regfree(cur->match.regprog);
- free(cur->pattern);
- free(cur);
- redraw_later(SOME_VALID);
- return 0;
-}
-
-/*
- * Delete all matches in the match list of window 'wp'.
- */
-void clear_matches(win_T *wp)
-{
- matchitem_T *m;
-
- while (wp->w_match_head != NULL) {
- m = wp->w_match_head->next;
- vim_regfree(wp->w_match_head->match.regprog);
- free(wp->w_match_head->pattern);
- free(wp->w_match_head);
- wp->w_match_head = m;
- }
- redraw_later(SOME_VALID);
-}
-
-/*
- * Get match from ID 'id' in window 'wp'.
- * Return NULL if match not found.
- */
-matchitem_T *get_match(win_T *wp, int id)
-{
- matchitem_T *cur = wp->w_match_head;
-
- while (cur != NULL && cur->id != id)
- cur = cur->next;
- return cur;
-}
-
-
-/*
- * 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 (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next)
- 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 (frp = topfrp->fr_child; frp != NULL; frp = frp->fr_next)
- if (frp->fr_width != width)
- return FALSE;
-
- return TRUE;
-}
-
generated by cgit (git 2.34.1) at 2025-07-27 03:47:34 +0000