ref: 43bfd7255c75836a4956c698fc28e378135867bc
dir: /screen.c/
/* vi:set ts=8 sts=4 sw=4:
*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
* See README.txt for an overview of the Vim source code.
*/
/*
* screen.c: code for displaying on the screen
*
* Output to the screen (console, terminal emulator or GUI window) is minimized
* by remembering what is already on the screen, and only updating the parts
* that changed.
*
* ScreenLines[off] Contains a copy of the whole screen, as it is currently
* displayed (excluding text written by external commands).
* ScreenAttrs[off] Contains the associated attributes.
* LineOffset[row] Contains the offset into ScreenLines*[] and ScreenAttrs[]
* for each line.
* LineWraps[row] Flag for each line whether it wraps to the next line.
*
* For double-byte characters, two consecutive bytes in ScreenLines[] can form
* one character which occupies two display cells.
* For UTF-8 a multi-byte character is converted to Unicode and stored in
* ScreenLinesUC[]. ScreenLines[] contains the first byte only. For an ASCII
* character without composing chars ScreenLinesUC[] will be 0. When the
* character occupies two display cells the next byte in ScreenLines[] is 0.
* ScreenLinesC[][] contain up to 'maxcombine' composing characters
* (drawn on top of the first character). They are 0 when not used.
* ScreenLines2[] is only used for euc-jp to store the second byte if the
* first byte is 0x8e (single-width character).
*
* The screen_*() functions write to the screen and handle updating
* ScreenLines[].
*
* update_screen() is the function that updates all windows and status lines.
* It is called form the main loop when must_redraw is non-zero. It may be
* called from other places when an immediate screen update is needed.
*
* The part of the buffer that is displayed in a window is set with:
* - w_topline (first buffer line in window)
* - w_topfill (filler line above the first line)
* - w_leftcol (leftmost window cell in window),
* - w_skipcol (skipped window cells of first line)
*
* Commands that only move the cursor around in a window, do not need to take
* action to update the display. The main loop will check if w_topline is
* valid and update it (scroll the window) when needed.
*
* Commands that scroll a window change w_topline and must call
* check_cursor() to move the cursor into the visible part of the window, and
* call redraw_later(VALID) to have the window displayed by update_screen()
* later.
*
* Commands that change text in the buffer must call changed_bytes() or
* changed_lines() to mark the area that changed and will require updating
* later. The main loop will call update_screen(), which will update each
* window that shows the changed buffer. This assumes text above the change
* can remain displayed as it is. Text after the change may need updating for
* scrolling, folding and syntax highlighting.
*
* Commands that change how a window is displayed (e.g., setting 'list') or
* invalidate the contents of a window in another way (e.g., change fold
* settings), must call redraw_later(NOT_VALID) to have the whole window
* redisplayed by update_screen() later.
*
* Commands that change how a buffer is displayed (e.g., setting 'tabstop')
* must call redraw_curbuf_later(NOT_VALID) to have all the windows for the
* buffer redisplayed by update_screen() later.
*
* Commands that change highlighting and possibly cause a scroll too must call
* redraw_later(SOME_VALID) to update the whole window but still use scrolling
* to avoid redrawing everything. But the length of displayed lines must not
* change, use NOT_VALID then.
*
* Commands that move the window position must call redraw_later(NOT_VALID).
* TODO: should minimize redrawing by scrolling when possible.
*
* Commands that change everything (e.g., resizing the screen) must call
* redraw_all_later(NOT_VALID) or redraw_all_later(CLEAR).
*
* Things that are handled indirectly:
* - When messages scroll the screen up, msg_scrolled will be set and
* update_screen() called to redraw.
*/
#include "vim.h"
/*
* The attributes that are actually active for writing to the screen.
*/
static int screen_attr = 0;
/*
* Positioning the cursor is reduced by remembering the last position.
* Mostly used by windgoto() and screen_char().
*/
static int screen_cur_row, screen_cur_col; /* last known cursor position */
#ifdef FEAT_SEARCH_EXTRA
/*
* Struct used for highlighting 'hlsearch' matches for the last use search
* pattern or a ":match" item.
* For 'hlsearch' there is one pattern for all windows. For ":match" there is
* a different pattern for each window.
*/
typedef struct
{
regmmatch_T rm; /* points to the regexp program; contains last found
match (may continue in next line) */
buf_T *buf; /* the buffer to search for a match */
linenr_T lnum; /* the line to search for a match */
int attr; /* attributes to be used for a match */
int attr_cur; /* attributes currently active in win_line() */
linenr_T first_lnum; /* first lnum to search for multi-line pat */
colnr_T startcol; /* in win_line() points to char where HL starts */
colnr_T endcol; /* in win_line() points to char where HL ends */
} match_T;
static match_T search_hl; /* used for 'hlsearch' highlight matching */
static match_T match_hl[3]; /* used for ":match" highlight matching */
#endif
#ifdef FEAT_FOLDING
static foldinfo_T win_foldinfo; /* info for 'foldcolumn' */
#endif
/*
* Buffer for one screen line (characters and attributes).
*/
static schar_T *current_ScreenLine;
static void win_update __ARGS((win_T *wp));
static void win_draw_end __ARGS((win_T *wp, int c1, int c2, int row, int endrow, hlf_T hl));
#ifdef FEAT_FOLDING
static void fold_line __ARGS((win_T *wp, long fold_count, foldinfo_T *foldinfo, linenr_T lnum, int row));
static void fill_foldcolumn __ARGS((char_u *p, win_T *wp, int closed, linenr_T lnum));
static void copy_text_attr __ARGS((int off, char_u *buf, int len, int attr));
#endif
static int win_line __ARGS((win_T *, linenr_T, int, int, int nochange));
static int char_needs_redraw __ARGS((int off_from, int off_to, int cols));
#ifdef FEAT_RIGHTLEFT
static void screen_line __ARGS((int row, int coloff, int endcol, int clear_width, int rlflag));
# define SCREEN_LINE(r, o, e, c, rl) screen_line((r), (o), (e), (c), (rl))
#else
static void screen_line __ARGS((int row, int coloff, int endcol, int clear_width));
# define SCREEN_LINE(r, o, e, c, rl) screen_line((r), (o), (e), (c))
#endif
#ifdef FEAT_VERTSPLIT
static void draw_vsep_win __ARGS((win_T *wp, int row));
#endif
#ifdef FEAT_STL_OPT
static void redraw_custum_statusline __ARGS((win_T *wp));
#endif
#ifdef FEAT_SEARCH_EXTRA
static void start_search_hl __ARGS((void));
static void end_search_hl __ARGS((void));
static void prepare_search_hl __ARGS((win_T *wp, linenr_T lnum));
static void next_search_hl __ARGS((win_T *win, match_T *shl, linenr_T lnum, colnr_T mincol));
#endif
static void screen_start_highlight __ARGS((int attr));
static void screen_char __ARGS((unsigned off, int row, int col));
#ifdef FEAT_MBYTE
static void screen_char_2 __ARGS((unsigned off, int row, int col));
#endif
static void screenclear2 __ARGS((void));
static void lineclear __ARGS((unsigned off, int width));
static void lineinvalid __ARGS((unsigned off, int width));
#ifdef FEAT_VERTSPLIT
static void linecopy __ARGS((int to, int from, win_T *wp));
static void redraw_block __ARGS((int row, int end, win_T *wp));
#endif
static int win_do_lines __ARGS((win_T *wp, int row, int line_count, int mayclear, int del));
static void win_rest_invalid __ARGS((win_T *wp));
static void msg_pos_mode __ARGS((void));
#if defined(FEAT_WINDOWS)
static void draw_tabline __ARGS((void));
#endif
#if defined(FEAT_WINDOWS) || defined(FEAT_WILDMENU) || defined(FEAT_STL_OPT)
static int fillchar_status __ARGS((int *attr, int is_curwin));
#endif
#ifdef FEAT_VERTSPLIT
static int fillchar_vsep __ARGS((int *attr));
#endif
#ifdef FEAT_STL_OPT
static void win_redr_custom __ARGS((win_T *wp, int draw_ruler));
#endif
#ifdef FEAT_CMDL_INFO
static void win_redr_ruler __ARGS((win_T *wp, int always));
#endif
#if defined(FEAT_CLIPBOARD) || defined(FEAT_VERTSPLIT)
/* Ugly global: overrule attribute used by screen_char() */
static int screen_char_attr = 0;
#endif
/*
* Redraw the current window later, with update_screen(type).
* Set must_redraw only if not already set to a higher value.
* e.g. if must_redraw is CLEAR, type NOT_VALID will do nothing.
*/
void
redraw_later(type)
int type;
{
redraw_win_later(curwin, type);
}
void
redraw_win_later(wp, type)
win_T *wp;
int type;
{
if (wp->w_redr_type < type)
{
wp->w_redr_type = type;
if (type >= NOT_VALID)
wp->w_lines_valid = 0;
if (must_redraw < type) /* must_redraw is the maximum of all windows */
must_redraw = type;
}
}
/*
* Force a complete redraw later. Also resets the highlighting. To be used
* after executing a shell command that messes up the screen.
*/
void
redraw_later_clear()
{
redraw_all_later(CLEAR);
#ifdef FEAT_GUI
if (gui.in_use)
/* Use a code that will reset gui.highlight_mask in
* gui_stop_highlight(). */
screen_attr = HL_ALL + 1;
else
#endif
/* Use attributes that is very unlikely to appear in text. */
screen_attr = HL_BOLD | HL_UNDERLINE | HL_INVERSE;
}
/*
* Mark all windows to be redrawn later.
*/
void
redraw_all_later(type)
int type;
{
win_T *wp;
FOR_ALL_WINDOWS(wp)
{
redraw_win_later(wp, type);
}
}
/*
* Mark all windows that are editing the current buffer to be updated later.
*/
void
redraw_curbuf_later(type)
int type;
{
redraw_buf_later(curbuf, type);
}
void
redraw_buf_later(buf, type)
buf_T *buf;
int type;
{
win_T *wp;
FOR_ALL_WINDOWS(wp)
{
if (wp->w_buffer == buf)
redraw_win_later(wp, type);
}
}
/*
* Changed something in the current window, at buffer line "lnum", that
* requires that line and possibly other lines to be redrawn.
* Used when entering/leaving Insert mode with the cursor on a folded line.
* Used to remove the "$" from a change command.
* Note that when also inserting/deleting lines w_redraw_top and w_redraw_bot
* may become invalid and the whole window will have to be redrawn.
*/
/*ARGSUSED*/
void
redrawWinline(lnum, invalid)
linenr_T lnum;
int invalid; /* window line height is invalid now */
{
#ifdef FEAT_FOLDING
int i;
#endif
if (curwin->w_redraw_top == 0 || curwin->w_redraw_top > lnum)
curwin->w_redraw_top = lnum;
if (curwin->w_redraw_bot == 0 || curwin->w_redraw_bot < lnum)
curwin->w_redraw_bot = lnum;
redraw_later(VALID);
#ifdef FEAT_FOLDING
if (invalid)
{
/* A w_lines[] entry for this lnum has become invalid. */
i = find_wl_entry(curwin, lnum);
if (i >= 0)
curwin->w_lines[i].wl_valid = FALSE;
}
#endif
}
/*
* update all windows that are editing the current buffer
*/
void
update_curbuf(type)
int type;
{
redraw_curbuf_later(type);
update_screen(type);
}
/*
* update_screen()
*
* Based on the current value of curwin->w_topline, transfer a screenfull
* of stuff from Filemem to ScreenLines[], and update curwin->w_botline.
*/
void
update_screen(type)
int type;
{
win_T *wp;
static int did_intro = FALSE;
#if defined(FEAT_SEARCH_EXTRA) || defined(FEAT_CLIPBOARD)
int did_one;
#endif
if (!screen_valid(TRUE))
return;
if (must_redraw)
{
if (type < must_redraw) /* use maximal type */
type = must_redraw;
must_redraw = 0;
}
/* Need to update w_lines[]. */
if (curwin->w_lines_valid == 0 && type < NOT_VALID)
type = NOT_VALID;
if (!redrawing())
{
redraw_later(type); /* remember type for next time */
must_redraw = type;
if (type > INVERTED_ALL)
curwin->w_lines_valid = 0; /* don't use w_lines[].wl_size now */
return;
}
updating_screen = TRUE;
#ifdef FEAT_SYN_HL
++display_tick; /* let syntax code know we're in a next round of
* display updating */
#endif
/*
* if the screen was scrolled up when displaying a message, scroll it down
*/
if (msg_scrolled)
{
clear_cmdline = TRUE;
if (msg_scrolled > Rows - 5) /* clearing is faster */
type = CLEAR;
else if (type != CLEAR)
{
check_for_delay(FALSE);
if (screen_ins_lines(0, 0, msg_scrolled, (int)Rows, NULL) == FAIL)
type = CLEAR;
FOR_ALL_WINDOWS(wp)
{
if (W_WINROW(wp) < msg_scrolled)
{
if (W_WINROW(wp) + wp->w_height > msg_scrolled
&& wp->w_redr_type < REDRAW_TOP
&& wp->w_lines_valid > 0
&& wp->w_topline == wp->w_lines[0].wl_lnum)
{
wp->w_upd_rows = msg_scrolled - W_WINROW(wp);
wp->w_redr_type = REDRAW_TOP;
}
else
{
wp->w_redr_type = NOT_VALID;
#ifdef FEAT_WINDOWS
if (W_WINROW(wp) + wp->w_height + W_STATUS_HEIGHT(wp)
<= msg_scrolled)
wp->w_redr_status = TRUE;
#endif
}
}
}
redraw_cmdline = TRUE;
#ifdef FEAT_WINDOWS
redraw_tabline = TRUE;
#endif
}
msg_scrolled = 0;
need_wait_return = FALSE;
}
/* reset cmdline_row now (may have been changed temporarily) */
compute_cmdrow();
/* Check for changed highlighting */
if (need_highlight_changed)
highlight_changed();
if (type == CLEAR) /* first clear screen */
{
screenclear(); /* will reset clear_cmdline */
type = NOT_VALID;
}
if (clear_cmdline) /* going to clear cmdline (done below) */
check_for_delay(FALSE);
#ifdef FEAT_LINEBREAK
/* Force redraw when width of 'number' column changes. */
if (curwin->w_redr_type < NOT_VALID
&& curwin->w_nrwidth != (curwin->w_p_nu ? number_width(curwin) : 0))
curwin->w_redr_type = NOT_VALID;
#endif
/*
* Only start redrawing if there is really something to do.
*/
if (type == INVERTED)
update_curswant();
if (curwin->w_redr_type < type
&& !((type == VALID
&& curwin->w_lines[0].wl_valid
#ifdef FEAT_DIFF
&& curwin->w_topfill == curwin->w_old_topfill
&& curwin->w_botfill == curwin->w_old_botfill
#endif
&& curwin->w_topline == curwin->w_lines[0].wl_lnum)
#ifdef FEAT_VISUAL
|| (type == INVERTED
&& VIsual_active
&& curwin->w_old_cursor_lnum == curwin->w_cursor.lnum
&& curwin->w_old_visual_mode == VIsual_mode
&& (curwin->w_valid & VALID_VIRTCOL)
&& curwin->w_old_curswant == curwin->w_curswant)
#endif
))
curwin->w_redr_type = type;
#ifdef FEAT_WINDOWS
/* Redraw the tab pages line if needed. */
if (redraw_tabline || type >= NOT_VALID)
draw_tabline();
#endif
#ifdef FEAT_SYN_HL
/*
* Correct stored syntax highlighting info for changes in each displayed
* buffer. Each buffer must only be done once.
*/
FOR_ALL_WINDOWS(wp)
{
if (wp->w_buffer->b_mod_set)
{
# ifdef FEAT_WINDOWS
win_T *wwp;
/* Check if we already did this buffer. */
for (wwp = firstwin; wwp != wp; wwp = wwp->w_next)
if (wwp->w_buffer == wp->w_buffer)
break;
# endif
if (
# ifdef FEAT_WINDOWS
wwp == wp &&
# endif
syntax_present(wp->w_buffer))
syn_stack_apply_changes(wp->w_buffer);
}
}
#endif
/*
* Go from top to bottom through the windows, redrawing the ones that need
* it.
*/
#if defined(FEAT_SEARCH_EXTRA) || defined(FEAT_CLIPBOARD)
did_one = FALSE;
#endif
#ifdef FEAT_SEARCH_EXTRA
search_hl.rm.regprog = NULL;
#endif
FOR_ALL_WINDOWS(wp)
{
if (wp->w_redr_type != 0)
{
cursor_off();
#if defined(FEAT_SEARCH_EXTRA) || defined(FEAT_CLIPBOARD)
if (!did_one)
{
did_one = TRUE;
# ifdef FEAT_SEARCH_EXTRA
start_search_hl();
# endif
# ifdef FEAT_CLIPBOARD
/* When Visual area changed, may have to update selection. */
if (clip_star.available && clip_isautosel())
clip_update_selection();
# endif
#ifdef FEAT_GUI
/* Remove the cursor before starting to do anything, because
* scrolling may make it difficult to redraw the text under
* it. */
if (gui.in_use)
gui_undraw_cursor();
#endif
}
#endif
win_update(wp);
}
#ifdef FEAT_WINDOWS
/* redraw status line after the window to minimize cursor movement */
if (wp->w_redr_status)
{
cursor_off();
win_redr_status(wp);
}
#endif
}
#if defined(FEAT_SEARCH_EXTRA)
end_search_hl();
#endif
#ifdef FEAT_WINDOWS
/* Reset b_mod_set flags. Going through all windows is probably faster
* than going through all buffers (there could be many buffers). */
for (wp = firstwin; wp != NULL; wp = wp->w_next)
wp->w_buffer->b_mod_set = FALSE;
#else
curbuf->b_mod_set = FALSE;
#endif
updating_screen = FALSE;
#ifdef FEAT_GUI
gui_may_resize_shell();
#endif
/* Clear or redraw the command line. Done last, because scrolling may
* mess up the command line. */
if (clear_cmdline || redraw_cmdline)
showmode();
/* May put up an introductory message when not editing a file */
if (!did_intro && bufempty()
&& curbuf->b_fname == NULL
#ifdef FEAT_WINDOWS
&& firstwin->w_next == NULL
#endif
&& vim_strchr(p_shm, SHM_INTRO) == NULL)
intro_message(FALSE);
did_intro = TRUE;
#ifdef FEAT_GUI
/* Redraw the cursor and update the scrollbars when all screen updating is
* done. */
if (gui.in_use)
{
out_flush(); /* required before updating the cursor */
if (did_one)
gui_update_cursor(FALSE, FALSE);
gui_update_scrollbars(FALSE);
}
#endif
}
#if defined(FEAT_SIGNS) || defined(FEAT_GUI)
static void update_prepare __ARGS((void));
static void update_finish __ARGS((void));
/*
* Prepare for updating one or more windows.
*/
static void
update_prepare()
{
cursor_off();
updating_screen = TRUE;
#ifdef FEAT_GUI
/* Remove the cursor before starting to do anything, because scrolling may
* make it difficult to redraw the text under it. */
if (gui.in_use)
gui_undraw_cursor();
#endif
#ifdef FEAT_SEARCH_EXTRA
start_search_hl();
#endif
}
/*
* Finish updating one or more windows.
*/
static void
update_finish()
{
if (redraw_cmdline)
showmode();
# ifdef FEAT_SEARCH_EXTRA
end_search_hl();
# endif
updating_screen = FALSE;
# ifdef FEAT_GUI
gui_may_resize_shell();
/* Redraw the cursor and update the scrollbars when all screen updating is
* done. */
if (gui.in_use)
{
out_flush(); /* required before updating the cursor */
gui_update_cursor(FALSE, FALSE);
gui_update_scrollbars(FALSE);
}
# endif
}
#endif
#if defined(FEAT_SIGNS) || defined(PROTO)
void
update_debug_sign(buf, lnum)
buf_T *buf;
linenr_T lnum;
{
win_T *wp;
int doit = FALSE;
# ifdef FEAT_FOLDING
win_foldinfo.fi_level = 0;
# endif
/* update/delete a specific mark */
FOR_ALL_WINDOWS(wp)
{
if (buf != NULL && lnum > 0)
{
if (wp->w_buffer == buf && lnum >= wp->w_topline
&& lnum < wp->w_botline)
{
if (wp->w_redraw_top == 0 || wp->w_redraw_top > lnum)
wp->w_redraw_top = lnum;
if (wp->w_redraw_bot == 0 || wp->w_redraw_bot < lnum)
wp->w_redraw_bot = lnum;
redraw_win_later(wp, VALID);
}
}
else
redraw_win_later(wp, VALID);
if (wp->w_redr_type != 0)
doit = TRUE;
}
if (!doit)
return;
/* update all windows that need updating */
update_prepare();
# ifdef FEAT_WINDOWS
for (wp = firstwin; wp; wp = wp->w_next)
{
if (wp->w_redr_type != 0)
win_update(wp);
if (wp->w_redr_status)
win_redr_status(wp);
}
# else
if (curwin->w_redr_type != 0)
win_update(curwin);
# endif
update_finish();
}
#endif
#if defined(FEAT_GUI) || defined(PROTO)
/*
* Update a single window, its status line and maybe the command line msg.
* Used for the GUI scrollbar.
*/
void
updateWindow(wp)
win_T *wp;
{
update_prepare();
#ifdef FEAT_CLIPBOARD
/* When Visual area changed, may have to update selection. */
if (clip_star.available && clip_isautosel())
clip_update_selection();
#endif
win_update(wp);
#ifdef FEAT_WINDOWS
/* When the screen was cleared redraw the tab pages line. */
if (redraw_tabline)
draw_tabline();
if (wp->w_redr_status
# ifdef FEAT_CMDL_INFO
|| p_ru
# endif
# ifdef FEAT_STL_OPT
|| *p_stl != NUL || *wp->w_p_stl != NUL
# endif
)
win_redr_status(wp);
#endif
update_finish();
}
#endif
/*
* Update a single window.
*
* This may cause the windows below it also to be redrawn (when clearing the
* screen or scrolling lines).
*
* How the window is redrawn depends on wp->w_redr_type. Each type also
* implies the one below it.
* NOT_VALID redraw the whole window
* SOME_VALID redraw the whole window but do scroll when possible
* REDRAW_TOP redraw the top w_upd_rows window lines, otherwise like VALID
* INVERTED redraw the changed part of the Visual area
* INVERTED_ALL redraw the whole Visual area
* VALID 1. scroll up/down to adjust for a changed w_topline
* 2. update lines at the top when scrolled down
* 3. redraw changed text:
* - if wp->w_buffer->b_mod_set set, update lines between
* b_mod_top and b_mod_bot.
* - if wp->w_redraw_top non-zero, redraw lines between
* wp->w_redraw_top and wp->w_redr_bot.
* - continue redrawing when syntax status is invalid.
* 4. if scrolled up, update lines at the bottom.
* This results in three areas that may need updating:
* top: from first row to top_end (when scrolled down)
* mid: from mid_start to mid_end (update inversion or changed text)
* bot: from bot_start to last row (when scrolled up)
*/
static void
win_update(wp)
win_T *wp;
{
buf_T *buf = wp->w_buffer;
int type;
int top_end = 0; /* Below last row of the top area that needs
updating. 0 when no top area updating. */
int mid_start = 999;/* first row of the mid area that needs
updating. 999 when no mid area updating. */
int mid_end = 0; /* Below last row of the mid area that needs
updating. 0 when no mid area updating. */
int bot_start = 999;/* first row of the bot area that needs
updating. 999 when no bot area updating */
#ifdef FEAT_VISUAL
int scrolled_down = FALSE; /* TRUE when scrolled down when
w_topline got smaller a bit */
#endif
#ifdef FEAT_SEARCH_EXTRA
int top_to_mod = FALSE; /* redraw above mod_top */
#endif
int row; /* current window row to display */
linenr_T lnum; /* current buffer lnum to display */
int idx; /* current index in w_lines[] */
int srow; /* starting row of the current line */
int eof = FALSE; /* if TRUE, we hit the end of the file */
int didline = FALSE; /* if TRUE, we finished the last line */
int i;
long j;
static int recursive = FALSE; /* being called recursively */
int old_botline = wp->w_botline;
#ifdef FEAT_FOLDING
long fold_count;
#endif
#ifdef FEAT_SYN_HL
/* remember what happened to the previous line, to know if
* check_visual_highlight() can be used */
#define DID_NONE 1 /* didn't update a line */
#define DID_LINE 2 /* updated a normal line */
#define DID_FOLD 3 /* updated a folded line */
int did_update = DID_NONE;
linenr_T syntax_last_parsed = 0; /* last parsed text line */
#endif
linenr_T mod_top = 0;
linenr_T mod_bot = 0;
#if defined(FEAT_SYN_HL) || defined(FEAT_SEARCH_EXTRA)
int save_got_int;
#endif
type = wp->w_redr_type;
if (type == NOT_VALID)
{
#ifdef FEAT_WINDOWS
wp->w_redr_status = TRUE;
#endif
wp->w_lines_valid = 0;
}
/* Window is zero-height: nothing to draw. */
if (wp->w_height == 0)
{
wp->w_redr_type = 0;
return;
}
#ifdef FEAT_VERTSPLIT
/* Window is zero-width: Only need to draw the separator. */
if (wp->w_width == 0)
{
/* draw the vertical separator right of this window */
draw_vsep_win(wp, 0);
wp->w_redr_type = 0;
return;
}
#endif
#ifdef FEAT_SEARCH_EXTRA
/* Setup for ":match" and 'hlsearch' highlighting. Disable any previous
* match */
for (i = 0; i < 3; ++i)
{
match_hl[i].rm = wp->w_match[i];
if (wp->w_match_id[i] == 0)
match_hl[i].attr = 0;
else
match_hl[i].attr = syn_id2attr(wp->w_match_id[i]);
match_hl[i].buf = buf;
match_hl[i].lnum = 0;
match_hl[i].first_lnum = 0;
}
search_hl.buf = buf;
search_hl.lnum = 0;
search_hl.first_lnum = 0;
#endif
#ifdef FEAT_LINEBREAK
/* Force redraw when width of 'number' column changes. */
i = wp->w_p_nu ? number_width(wp) : 0;
if (wp->w_nrwidth != i)
{
type = NOT_VALID;
wp->w_nrwidth = i;
}
else
#endif
if (buf->b_mod_set && buf->b_mod_xlines != 0 && wp->w_redraw_top != 0)
{
/*
* When there are both inserted/deleted lines and specific lines to be
* redrawn, w_redraw_top and w_redraw_bot may be invalid, just redraw
* everything (only happens when redrawing is off for while).
*/
type = NOT_VALID;
}
else
{
/*
* Set mod_top to the first line that needs displaying because of
* changes. Set mod_bot to the first line after the changes.
*/
mod_top = wp->w_redraw_top;
if (wp->w_redraw_bot != 0)
mod_bot = wp->w_redraw_bot + 1;
else
mod_bot = 0;
wp->w_redraw_top = 0; /* reset for next time */
wp->w_redraw_bot = 0;
if (buf->b_mod_set)
{
if (mod_top == 0 || mod_top > buf->b_mod_top)
{
mod_top = buf->b_mod_top;
#ifdef FEAT_SYN_HL
/* Need to redraw lines above the change that may be included
* in a pattern match. */
if (syntax_present(buf))
{
mod_top -= buf->b_syn_sync_linebreaks;
if (mod_top < 1)
mod_top = 1;
}
#endif
}
if (mod_bot == 0 || mod_bot < buf->b_mod_bot)
mod_bot = buf->b_mod_bot;
#ifdef FEAT_SEARCH_EXTRA
/* When 'hlsearch' is on and using a multi-line search pattern, a
* change in one line may make the Search highlighting in a
* previous line invalid. Simple solution: redraw all visible
* lines above the change.
* Same for a ":match" pattern.
*/
if (search_hl.rm.regprog != NULL
&& re_multiline(search_hl.rm.regprog))
top_to_mod = TRUE;
else
for (i = 0; i < 3; ++i)
if (match_hl[i].rm.regprog != NULL
&& re_multiline(match_hl[i].rm.regprog))
{
top_to_mod = TRUE;
break;
}
#endif
}
#ifdef FEAT_FOLDING
if (mod_top != 0 && hasAnyFolding(wp))
{
linenr_T lnumt, lnumb;
/*
* A change in a line can cause lines above it to become folded or
* unfolded. Find the top most buffer line that may be affected.
* If the line was previously folded and displayed, get the first
* line of that fold. If the line is folded now, get the first
* folded line. Use the minimum of these two.
*/
/* Find last valid w_lines[] entry above mod_top. Set lnumt to
* the line below it. If there is no valid entry, use w_topline.
* Find the first valid w_lines[] entry below mod_bot. Set lnumb
* to this line. If there is no valid entry, use MAXLNUM. */
lnumt = wp->w_topline;
lnumb = MAXLNUM;
for (i = 0; i < wp->w_lines_valid; ++i)
if (wp->w_lines[i].wl_valid)
{
if (wp->w_lines[i].wl_lastlnum < mod_top)
lnumt = wp->w_lines[i].wl_lastlnum + 1;
if (lnumb == MAXLNUM && wp->w_lines[i].wl_lnum >= mod_bot)
{
lnumb = wp->w_lines[i].wl_lnum;
/* When there is a fold column it might need updating
* in the next line ("J" just above an open fold). */
if (wp->w_p_fdc > 0)
++lnumb;
}
}
(void)hasFoldingWin(wp, mod_top, &mod_top, NULL, TRUE, NULL);
if (mod_top > lnumt)
mod_top = lnumt;
/* Now do the same for the bottom line (one above mod_bot). */
--mod_bot;
(void)hasFoldingWin(wp, mod_bot, NULL, &mod_bot, TRUE, NULL);
++mod_bot;
if (mod_bot < lnumb)
mod_bot = lnumb;
}
#endif
/* When a change starts above w_topline and the end is below
* w_topline, start redrawing at w_topline.
* If the end of the change is above w_topline: do like no change was
* made, but redraw the first line to find changes in syntax. */
if (mod_top != 0 && mod_top < wp->w_topline)
{
if (mod_bot > wp->w_topline)
mod_top = wp->w_topline;
#ifdef FEAT_SYN_HL
else if (syntax_present(buf))
top_end = 1;
#endif
}
/* When line numbers are displayed need to redraw all lines below
* inserted/deleted lines. */
if (mod_top != 0 && buf->b_mod_xlines != 0 && wp->w_p_nu)
mod_bot = MAXLNUM;
}
/*
* When only displaying the lines at the top, set top_end. Used when
* window has scrolled down for msg_scrolled.
*/
if (type == REDRAW_TOP)
{
j = 0;
for (i = 0; i < wp->w_lines_valid; ++i)
{
j += wp->w_lines[i].wl_size;
if (j >= wp->w_upd_rows)
{
top_end = j;
break;
}
}
if (top_end == 0)
/* not found (cannot happen?): redraw everything */
type = NOT_VALID;
else
/* top area defined, the rest is VALID */
type = VALID;
}
/*
* If there are no changes on the screen that require a complete redraw,
* handle three cases:
* 1: we are off the top of the screen by a few lines: scroll down
* 2: wp->w_topline is below wp->w_lines[0].wl_lnum: may scroll up
* 3: wp->w_topline is wp->w_lines[0].wl_lnum: find first entry in
* w_lines[] that needs updating.
*/
if ((type == VALID || type == SOME_VALID
|| type == INVERTED || type == INVERTED_ALL)
#ifdef FEAT_DIFF
&& !wp->w_botfill && !wp->w_old_botfill
#endif
)
{
if (mod_top != 0 && wp->w_topline == mod_top)
{
/*
* w_topline is the first changed line, the scrolling will be done
* further down.
*/
}
else if (wp->w_lines[0].wl_valid
&& (wp->w_topline < wp->w_lines[0].wl_lnum
#ifdef FEAT_DIFF
|| (wp->w_topline == wp->w_lines[0].wl_lnum
&& wp->w_topfill > wp->w_old_topfill)
#endif
))
{
/*
* New topline is above old topline: May scroll down.
*/
#ifdef FEAT_FOLDING
if (hasAnyFolding(wp))
{
linenr_T ln;
/* count the number of lines we are off, counting a sequence
* of folded lines as one */
j = 0;
for (ln = wp->w_topline; ln < wp->w_lines[0].wl_lnum; ++ln)
{
++j;
if (j >= wp->w_height - 2)
break;
(void)hasFoldingWin(wp, ln, NULL, &ln, TRUE, NULL);
}
}
else
#endif
j = wp->w_lines[0].wl_lnum - wp->w_topline;
if (j < wp->w_height - 2) /* not too far off */
{
i = plines_m_win(wp, wp->w_topline, wp->w_lines[0].wl_lnum - 1);
#ifdef FEAT_DIFF
/* insert extra lines for previously invisible filler lines */
if (wp->w_lines[0].wl_lnum != wp->w_topline)
i += diff_check_fill(wp, wp->w_lines[0].wl_lnum)
- wp->w_old_topfill;
#endif
if (i < wp->w_height - 2) /* less than a screen off */
{
/*
* Try to insert the correct number of lines.
* If not the last window, delete the lines at the bottom.
* win_ins_lines may fail when the terminal can't do it.
*/
if (i > 0)
check_for_delay(FALSE);
if (win_ins_lines(wp, 0, i, FALSE, wp == firstwin) == OK)
{
if (wp->w_lines_valid != 0)
{
/* Need to update rows that are new, stop at the
* first one that scrolled down. */
top_end = i;
#ifdef FEAT_VISUAL
scrolled_down = TRUE;
#endif
/* Move the entries that were scrolled, disable
* the entries for the lines to be redrawn. */
if ((wp->w_lines_valid += j) > wp->w_height)
wp->w_lines_valid = wp->w_height;
for (idx = wp->w_lines_valid; idx - j >= 0; idx--)
wp->w_lines[idx] = wp->w_lines[idx - j];
while (idx >= 0)
wp->w_lines[idx--].wl_valid = FALSE;
}
}
else
mid_start = 0; /* redraw all lines */
}
else
mid_start = 0; /* redraw all lines */
}
else
mid_start = 0; /* redraw all lines */
}
else
{
/*
* New topline is at or below old topline: May scroll up.
* When topline didn't change, find first entry in w_lines[] that
* needs updating.
*/
/* try to find wp->w_topline in wp->w_lines[].wl_lnum */
j = -1;
row = 0;
for (i = 0; i < wp->w_lines_valid; i++)
{
if (wp->w_lines[i].wl_valid
&& wp->w_lines[i].wl_lnum == wp->w_topline)
{
j = i;
break;
}
row += wp->w_lines[i].wl_size;
}
if (j == -1)
{
/* if wp->w_topline is not in wp->w_lines[].wl_lnum redraw all
* lines */
mid_start = 0;
}
else
{
/*
* Try to delete the correct number of lines.
* wp->w_topline is at wp->w_lines[i].wl_lnum.
*/
#ifdef FEAT_DIFF
/* If the topline didn't change, delete old filler lines,
* otherwise delete filler lines of the new topline... */
if (wp->w_lines[0].wl_lnum == wp->w_topline)
row += wp->w_old_topfill;
else
row += diff_check_fill(wp, wp->w_topline);
/* ... but don't delete new filler lines. */
row -= wp->w_topfill;
#endif
if (row > 0)
{
check_for_delay(FALSE);
if (win_del_lines(wp, 0, row, FALSE, wp == firstwin) == OK)
bot_start = wp->w_height - row;
else
mid_start = 0; /* redraw all lines */
}
if ((row == 0 || bot_start < 999) && wp->w_lines_valid != 0)
{
/*
* Skip the lines (below the deleted lines) that are still
* valid and don't need redrawing. Copy their info
* upwards, to compensate for the deleted lines. Set
* bot_start to the first row that needs redrawing.
*/
bot_start = 0;
idx = 0;
for (;;)
{
wp->w_lines[idx] = wp->w_lines[j];
/* stop at line that didn't fit, unless it is still
* valid (no lines deleted) */
if (row > 0 && bot_start + row
+ (int)wp->w_lines[j].wl_size > wp->w_height)
{
wp->w_lines_valid = idx + 1;
break;
}
bot_start += wp->w_lines[idx++].wl_size;
/* stop at the last valid entry in w_lines[].wl_size */
if (++j >= wp->w_lines_valid)
{
wp->w_lines_valid = idx;
break;
}
}
#ifdef FEAT_DIFF
/* Correct the first entry for filler lines at the top
* when it won't get updated below. */
if (wp->w_p_diff && bot_start > 0)
wp->w_lines[0].wl_size =
plines_win_nofill(wp, wp->w_topline, TRUE)
+ wp->w_topfill;
#endif
}
}
}
/* When starting redraw in the first line, redraw all lines. When
* there is only one window it's probably faster to clear the screen
* first. */
if (mid_start == 0)
{
mid_end = wp->w_height;
if (lastwin == firstwin)
{
screenclear();
#ifdef FEAT_WINDOWS
/* The screen was cleared, redraw the tab pages line. */
if (redraw_tabline)
draw_tabline();
#endif
}
}
}
else
{
/* Not VALID or INVERTED: redraw all lines. */
mid_start = 0;
mid_end = wp->w_height;
}
if (type == SOME_VALID)
{
/* SOME_VALID: redraw all lines. */
mid_start = 0;
mid_end = wp->w_height;
type = NOT_VALID;
}
#ifdef FEAT_VISUAL
/* check if we are updating or removing the inverted part */
if ((VIsual_active && buf == curwin->w_buffer)
|| (wp->w_old_cursor_lnum != 0 && type != NOT_VALID))
{
linenr_T from, to;
if (VIsual_active)
{
if (VIsual_active
&& (VIsual_mode != wp->w_old_visual_mode
|| type == INVERTED_ALL))
{
/*
* If the type of Visual selection changed, redraw the whole
* selection. Also when the ownership of the X selection is
* gained or lost.
*/
if (curwin->w_cursor.lnum < VIsual.lnum)
{
from = curwin->w_cursor.lnum;
to = VIsual.lnum;
}
else
{
from = VIsual.lnum;
to = curwin->w_cursor.lnum;
}
/* redraw more when the cursor moved as well */
if (wp->w_old_cursor_lnum < from)
from = wp->w_old_cursor_lnum;
if (wp->w_old_cursor_lnum > to)
to = wp->w_old_cursor_lnum;
if (wp->w_old_visual_lnum < from)
from = wp->w_old_visual_lnum;
if (wp->w_old_visual_lnum > to)
to = wp->w_old_visual_lnum;
}
else
{
/*
* Find the line numbers that need to be updated: The lines
* between the old cursor position and the current cursor
* position. Also check if the Visual position changed.
*/
if (curwin->w_cursor.lnum < wp->w_old_cursor_lnum)
{
from = curwin->w_cursor.lnum;
to = wp->w_old_cursor_lnum;
}
else
{
from = wp->w_old_cursor_lnum;
to = curwin->w_cursor.lnum;
if (from == 0) /* Visual mode just started */
from = to;
}
if (VIsual.lnum != wp->w_old_visual_lnum
|| VIsual.col != wp->w_old_visual_col)
{
if (wp->w_old_visual_lnum < from
&& wp->w_old_visual_lnum != 0)
from = wp->w_old_visual_lnum;
if (wp->w_old_visual_lnum > to)
to = wp->w_old_visual_lnum;
if (VIsual.lnum < from)
from = VIsual.lnum;
if (VIsual.lnum > to)
to = VIsual.lnum;
}
}
/*
* If in block mode and changed column or curwin->w_curswant:
* update all lines.
* First compute the actual start and end column.
*/
if (VIsual_mode == Ctrl_V)
{
colnr_T fromc, toc;
getvcols(wp, &VIsual, &curwin->w_cursor, &fromc, &toc);
++toc;
if (curwin->w_curswant == MAXCOL)
toc = MAXCOL;
if (fromc != wp->w_old_cursor_fcol
|| toc != wp->w_old_cursor_lcol)
{
if (from > VIsual.lnum)
from = VIsual.lnum;
if (to < VIsual.lnum)
to = VIsual.lnum;
}
wp->w_old_cursor_fcol = fromc;
wp->w_old_cursor_lcol = toc;
}
}
else
{
/* Use the line numbers of the old Visual area. */
if (wp->w_old_cursor_lnum < wp->w_old_visual_lnum)
{
from = wp->w_old_cursor_lnum;
to = wp->w_old_visual_lnum;
}
else
{
from = wp->w_old_visual_lnum;
to = wp->w_old_cursor_lnum;
}
}
/*
* There is no need to update lines above the top of the window.
*/
if (from < wp->w_topline)
from = wp->w_topline;
/*
* If we know the value of w_botline, use it to restrict the update to
* the lines that are visible in the window.
*/
if (wp->w_valid & VALID_BOTLINE)
{
if (from >= wp->w_botline)
from = wp->w_botline - 1;
if (to >= wp->w_botline)
to = wp->w_botline - 1;
}
/*
* Find the minimal part to be updated.
* Watch out for scrolling that made entries in w_lines[] invalid.
* E.g., CTRL-U makes the first half of w_lines[] invalid and sets
* top_end; need to redraw from top_end to the "to" line.
* A middle mouse click with a Visual selection may change the text
* above the Visual area and reset wl_valid, do count these for
* mid_end (in srow).
*/
if (mid_start > 0)
{
lnum = wp->w_topline;
idx = 0;
srow = 0;
if (scrolled_down)
mid_start = top_end;
else
mid_start = 0;
while (lnum < from && idx < wp->w_lines_valid) /* find start */
{
if (wp->w_lines[idx].wl_valid)
mid_start += wp->w_lines[idx].wl_size;
else if (!scrolled_down)
srow += wp->w_lines[idx].wl_size;
++idx;
# ifdef FEAT_FOLDING
if (idx < wp->w_lines_valid && wp->w_lines[idx].wl_valid)
lnum = wp->w_lines[idx].wl_lnum;
else
# endif
++lnum;
}
srow += mid_start;
mid_end = wp->w_height;
for ( ; idx < wp->w_lines_valid; ++idx) /* find end */
{
if (wp->w_lines[idx].wl_valid
&& wp->w_lines[idx].wl_lnum >= to + 1)
{
/* Only update until first row of this line */
mid_end = srow;
break;
}
srow += wp->w_lines[idx].wl_size;
}
}
}
if (VIsual_active && buf == curwin->w_buffer)
{
wp->w_old_visual_mode = VIsual_mode;
wp->w_old_cursor_lnum = curwin->w_cursor.lnum;
wp->w_old_visual_lnum = VIsual.lnum;
wp->w_old_visual_col = VIsual.col;
wp->w_old_curswant = curwin->w_curswant;
}
else
{
wp->w_old_visual_mode = 0;
wp->w_old_cursor_lnum = 0;
wp->w_old_visual_lnum = 0;
wp->w_old_visual_col = 0;
}
#endif /* FEAT_VISUAL */
#if defined(FEAT_SYN_HL) || defined(FEAT_SEARCH_EXTRA)
/* reset got_int, otherwise regexp won't work */
save_got_int = got_int;
got_int = 0;
#endif
#ifdef FEAT_FOLDING
win_foldinfo.fi_level = 0;
#endif
/*
* Update all the window rows.
*/
idx = 0; /* first entry in w_lines[].wl_size */
row = 0;
srow = 0;
lnum = wp->w_topline; /* first line shown in window */
for (;;)
{
/* stop updating when reached the end of the window (check for _past_
* the end of the window is at the end of the loop) */
if (row == wp->w_height)
{
didline = TRUE;
break;
}
/* stop updating when hit the end of the file */
if (lnum > buf->b_ml.ml_line_count)
{
eof = TRUE;
break;
}
/* Remember the starting row of the line that is going to be dealt
* with. It is used further down when the line doesn't fit. */
srow = row;
/*
* Update a line when it is in an area that needs updating, when it
* has changes or w_lines[idx] is invalid.
* bot_start may be halfway a wrapped line after using
* win_del_lines(), check if the current line includes it.
* When syntax folding is being used, the saved syntax states will
* already have been updated, we can't see where the syntax state is
* the same again, just update until the end of the window.
*/
if (row < top_end
|| (row >= mid_start && row < mid_end)
#ifdef FEAT_SEARCH_EXTRA
|| top_to_mod
#endif
|| idx >= wp->w_lines_valid
|| (row + wp->w_lines[idx].wl_size > bot_start)
|| (mod_top != 0
&& (lnum == mod_top
|| (lnum >= mod_top
&& (lnum < mod_bot
#ifdef FEAT_SYN_HL
|| did_update == DID_FOLD
|| (did_update == DID_LINE
&& syntax_present(buf)
&& (
# ifdef FEAT_FOLDING
(foldmethodIsSyntax(wp)
&& hasAnyFolding(wp)) ||
# endif
syntax_check_changed(lnum)))
#endif
)))))
{
#ifdef FEAT_SEARCH_EXTRA
if (lnum == mod_top)
top_to_mod = FALSE;
#endif
/*
* When at start of changed lines: May scroll following lines
* up or down to minimize redrawing.
* Don't do this when the change continues until the end.
* Don't scroll when dollar_vcol is non-zero, keep the "$".
*/
if (lnum == mod_top
&& mod_bot != MAXLNUM
&& !(dollar_vcol != 0 && mod_bot == mod_top + 1))
{
int old_rows = 0;
int new_rows = 0;
int xtra_rows;
linenr_T l;
/* Count the old number of window rows, using w_lines[], which
* should still contain the sizes for the lines as they are
* currently displayed. */
for (i = idx; i < wp->w_lines_valid; ++i)
{
/* Only valid lines have a meaningful wl_lnum. Invalid
* lines are part of the changed area. */
if (wp->w_lines[i].wl_valid
&& wp->w_lines[i].wl_lnum == mod_bot)
break;
old_rows += wp->w_lines[i].wl_size;
#ifdef FEAT_FOLDING
if (wp->w_lines[i].wl_valid
&& wp->w_lines[i].wl_lastlnum + 1 == mod_bot)
{
/* Must have found the last valid entry above mod_bot.
* Add following invalid entries. */
++i;
while (i < wp->w_lines_valid
&& !wp->w_lines[i].wl_valid)
old_rows += wp->w_lines[i++].wl_size;
break;
}
#endif
}
if (i >= wp->w_lines_valid)
{
/* We can't find a valid line below the changed lines,
* need to redraw until the end of the window.
* Inserting/deleting lines has no use. */
bot_start = 0;
}
else
{
/* Able to count old number of rows: Count new window
* rows, and may insert/delete lines */
j = idx;
for (l = lnum; l < mod_bot; ++l)
{
#ifdef FEAT_FOLDING
if (hasFoldingWin(wp, l, NULL, &l, TRUE, NULL))
++new_rows;
else
#endif
#ifdef FEAT_DIFF
if (l == wp->w_topline)
new_rows += plines_win_nofill(wp, l, TRUE)
+ wp->w_topfill;
else
#endif
new_rows += plines_win(wp, l, TRUE);
++j;
if (new_rows > wp->w_height - row - 2)
{
/* it's getting too much, must redraw the rest */
new_rows = 9999;
break;
}
}
xtra_rows = new_rows - old_rows;
if (xtra_rows < 0)
{
/* May scroll text up. If there is not enough
* remaining text or scrolling fails, must redraw the
* rest. If scrolling works, must redraw the text
* below the scrolled text. */
if (row - xtra_rows >= wp->w_height - 2)
mod_bot = MAXLNUM;
else
{
check_for_delay(FALSE);
if (win_del_lines(wp, row,
-xtra_rows, FALSE, FALSE) == FAIL)
mod_bot = MAXLNUM;
else
bot_start = wp->w_height + xtra_rows;
}
}
else if (xtra_rows > 0)
{
/* May scroll text down. If there is not enough
* remaining text of scrolling fails, must redraw the
* rest. */
if (row + xtra_rows >= wp->w_height - 2)
mod_bot = MAXLNUM;
else
{
check_for_delay(FALSE);
if (win_ins_lines(wp, row + old_rows,
xtra_rows, FALSE, FALSE) == FAIL)
mod_bot = MAXLNUM;
else if (top_end > row + old_rows)
/* Scrolled the part at the top that requires
* updating down. */
top_end += xtra_rows;
}
}
/* When not updating the rest, may need to move w_lines[]
* entries. */
if (mod_bot != MAXLNUM && i != j)
{
if (j < i)
{
int x = row + new_rows;
/* move entries in w_lines[] upwards */
for (;;)
{
/* stop at last valid entry in w_lines[] */
if (i >= wp->w_lines_valid)
{
wp->w_lines_valid = j;
break;
}
wp->w_lines[j] = wp->w_lines[i];
/* stop at a line that won't fit */
if (x + (int)wp->w_lines[j].wl_size
> wp->w_height)
{
wp->w_lines_valid = j + 1;
break;
}
x += wp->w_lines[j++].wl_size;
++i;
}
if (bot_start > x)
bot_start = x;
}
else /* j > i */
{
/* move entries in w_lines[] downwards */
j -= i;
wp->w_lines_valid += j;
if (wp->w_lines_valid > wp->w_height)
wp->w_lines_valid = wp->w_height;
for (i = wp->w_lines_valid; i - j >= idx; --i)
wp->w_lines[i] = wp->w_lines[i - j];
/* The w_lines[] entries for inserted lines are
* now invalid, but wl_size may be used above.
* Reset to zero. */
while (i >= idx)
{
wp->w_lines[i].wl_size = 0;
wp->w_lines[i--].wl_valid = FALSE;
}
}
}
}
}
#ifdef FEAT_FOLDING
/*
* When lines are folded, display one line for all of them.
* Otherwise, display normally (can be several display lines when
* 'wrap' is on).
*/
fold_count = foldedCount(wp, lnum, &win_foldinfo);
if (fold_count != 0)
{
fold_line(wp, fold_count, &win_foldinfo, lnum, row);
++row;
--fold_count;
wp->w_lines[idx].wl_folded = TRUE;
wp->w_lines[idx].wl_lastlnum = lnum + fold_count;
# ifdef FEAT_SYN_HL
did_update = DID_FOLD;
# endif
}
else
#endif
if (idx < wp->w_lines_valid
&& wp->w_lines[idx].wl_valid
&& wp->w_lines[idx].wl_lnum == lnum
&& lnum > wp->w_topline
&& !(dy_flags & DY_LASTLINE)
&& srow + wp->w_lines[idx].wl_size > wp->w_height
#ifdef FEAT_DIFF
&& diff_check_fill(wp, lnum) == 0
#endif
)
{
/* This line is not going to fit. Don't draw anything here,
* will draw "@ " lines below. */
row = wp->w_height + 1;
}
else
{
#ifdef FEAT_SEARCH_EXTRA
prepare_search_hl(wp, lnum);
#endif
#ifdef FEAT_SYN_HL
/* Let the syntax stuff know we skipped a few lines. */
if (syntax_last_parsed != 0 && syntax_last_parsed + 1 < lnum
&& syntax_present(buf))
syntax_end_parsing(syntax_last_parsed + 1);
#endif
/*
* Display one line.
*/
row = win_line(wp, lnum, srow, wp->w_height, mod_top == 0);
#ifdef FEAT_FOLDING
wp->w_lines[idx].wl_folded = FALSE;
wp->w_lines[idx].wl_lastlnum = lnum;
#endif
#ifdef FEAT_SYN_HL
did_update = DID_LINE;
syntax_last_parsed = lnum;
#endif
}
wp->w_lines[idx].wl_lnum = lnum;
wp->w_lines[idx].wl_valid = TRUE;
if (row > wp->w_height) /* past end of screen */
{
/* we may need the size of that too long line later on */
if (dollar_vcol == 0)
wp->w_lines[idx].wl_size = plines_win(wp, lnum, TRUE);
++idx;
break;
}
if (dollar_vcol == 0)
wp->w_lines[idx].wl_size = row - srow;
++idx;
#ifdef FEAT_FOLDING
lnum += fold_count + 1;
#else
++lnum;
#endif
}
else
{
/* This line does not need updating, advance to the next one */
row += wp->w_lines[idx++].wl_size;
if (row > wp->w_height) /* past end of screen */
break;
#ifdef FEAT_FOLDING
lnum = wp->w_lines[idx - 1].wl_lastlnum + 1;
#else
++lnum;
#endif
#ifdef FEAT_SYN_HL
did_update = DID_NONE;
#endif
}
if (lnum > buf->b_ml.ml_line_count)
{
eof = TRUE;
break;
}
}
/*
* End of loop over all window lines.
*/
if (idx > wp->w_lines_valid)
wp->w_lines_valid = idx;
#ifdef FEAT_SYN_HL
/*
* Let the syntax stuff know we stop parsing here.
*/
if (syntax_last_parsed != 0 && syntax_present(buf))
syntax_end_parsing(syntax_last_parsed + 1);
#endif
/*
* If we didn't hit the end of the file, and we didn't finish the last
* line we were working on, then the line didn't fit.
*/
wp->w_empty_rows = 0;
#ifdef FEAT_DIFF
wp->w_filler_rows = 0;
#endif
if (!eof && !didline)
{
if (lnum == wp->w_topline)
{
/*
* Single line that does not fit!
* Don't overwrite it, it can be edited.
*/
wp->w_botline = lnum + 1;
}
#ifdef FEAT_DIFF
else if (diff_check_fill(wp, lnum) >= wp->w_height - srow)
{
/* Window ends in filler lines. */
wp->w_botline = lnum;
wp->w_filler_rows = wp->w_height - srow;
}
#endif
else if (dy_flags & DY_LASTLINE) /* 'display' has "lastline" */
{
/*
* Last line isn't finished: Display "@@@" at the end.
*/
screen_fill(W_WINROW(wp) + wp->w_height - 1,
W_WINROW(wp) + wp->w_height,
(int)W_ENDCOL(wp) - 3, (int)W_ENDCOL(wp),
'@', '@', hl_attr(HLF_AT));
set_empty_rows(wp, srow);
wp->w_botline = lnum;
}
else
{
win_draw_end(wp, '@', ' ', srow, wp->w_height, HLF_AT);
wp->w_botline = lnum;
}
}
else
{
#ifdef FEAT_VERTSPLIT
draw_vsep_win(wp, row);
#endif
if (eof) /* we hit the end of the file */
{
wp->w_botline = buf->b_ml.ml_line_count + 1;
#ifdef FEAT_DIFF
j = diff_check_fill(wp, wp->w_botline);
if (j > 0 && !wp->w_botfill)
{
/*
* Display filler lines at the end of the file
*/
if (char2cells(fill_diff) > 1)
i = '-';
else
i = fill_diff;
if (row + j > wp->w_height)
j = wp->w_height - row;
win_draw_end(wp, i, i, row, row + (int)j, HLF_DED);
row += j;
}
#endif
}
else if (dollar_vcol == 0)
wp->w_botline = lnum;
/* make sure the rest of the screen is blank */
/* put '~'s on rows that aren't part of the file. */
win_draw_end(wp, '~', ' ', row, wp->w_height, HLF_AT);
}
/* Reset the type of redrawing required, the window has been updated. */
wp->w_redr_type = 0;
#ifdef FEAT_DIFF
wp->w_old_topfill = wp->w_topfill;
wp->w_old_botfill = wp->w_botfill;
#endif
if (dollar_vcol == 0)
{
/*
* There is a trick with w_botline. If we invalidate it on each
* change that might modify it, this will cause a lot of expensive
* calls to plines() in update_topline() each time. Therefore the
* value of w_botline is often approximated, and this value is used to
* compute the value of w_topline. If the value of w_botline was
* wrong, check that the value of w_topline is correct (cursor is on
* the visible part of the text). If it's not, we need to redraw
* again. Mostly this just means scrolling up a few lines, so it
* doesn't look too bad. Only do this for the current window (where
* changes are relevant).
*/
wp->w_valid |= VALID_BOTLINE;
if (wp == curwin && wp->w_botline != old_botline && !recursive)
{
recursive = TRUE;
curwin->w_valid &= ~VALID_TOPLINE;
update_topline(); /* may invalidate w_botline again */
if (must_redraw != 0)
{
/* Don't update for changes in buffer again. */
i = curbuf->b_mod_set;
curbuf->b_mod_set = FALSE;
win_update(curwin);
must_redraw = 0;
curbuf->b_mod_set = i;
}
recursive = FALSE;
}
}
#if defined(FEAT_SYN_HL) || defined(FEAT_SEARCH_EXTRA)
/* restore got_int, unless CTRL-C was hit while redrawing */
if (!got_int)
got_int = save_got_int;
#endif
}
#ifdef FEAT_SIGNS
static int draw_signcolumn __ARGS((win_T *wp));
/*
* Return TRUE when window "wp" has a column to draw signs in.
*/
static int
draw_signcolumn(wp)
win_T *wp;
{
return (wp->w_buffer->b_signlist != NULL
# ifdef FEAT_NETBEANS_INTG
|| usingNetbeans
# endif
);
}
#endif
/*
* Clear the rest of the window and mark the unused lines with "c1". use "c2"
* as the filler character.
*/
static void
win_draw_end(wp, c1, c2, row, endrow, hl)
win_T *wp;
int c1;
int c2;
int row;
int endrow;
hlf_T hl;
{
#if defined(FEAT_FOLDING) || defined(FEAT_SIGNS) || defined(FEAT_CMDWIN)
int n = 0;
# define FDC_OFF n
#else
# define FDC_OFF 0
#endif
#ifdef FEAT_RIGHTLEFT
if (wp->w_p_rl)
{
/* No check for cmdline window: should never be right-left. */
# ifdef FEAT_FOLDING
n = wp->w_p_fdc;
if (n > 0)
{
/* draw the fold column at the right */
if (n > W_WIDTH(wp))
n = W_WIDTH(wp);
screen_fill(W_WINROW(wp) + row, W_WINROW(wp) + endrow,
W_ENDCOL(wp) - n, (int)W_ENDCOL(wp),
' ', ' ', hl_attr(HLF_FC));
}
# endif
# ifdef FEAT_SIGNS
if (draw_signcolumn(wp))
{
int nn = n + 2;
/* draw the sign column left of the fold column */
if (nn > W_WIDTH(wp))
nn = W_WIDTH(wp);
screen_fill(W_WINROW(wp) + row, W_WINROW(wp) + endrow,
W_ENDCOL(wp) - nn, (int)W_ENDCOL(wp) - n,
' ', ' ', hl_attr(HLF_SC));
n = nn;
}
# endif
screen_fill(W_WINROW(wp) + row, W_WINROW(wp) + endrow,
W_WINCOL(wp), W_ENDCOL(wp) - 1 - FDC_OFF,
c2, c2, hl_attr(hl));
screen_fill(W_WINROW(wp) + row, W_WINROW(wp) + endrow,
W_ENDCOL(wp) - 1 - FDC_OFF, W_ENDCOL(wp) - FDC_OFF,
c1, c2, hl_attr(hl));
}
else
#endif
{
#ifdef FEAT_CMDWIN
if (cmdwin_type != 0 && wp == curwin)
{
/* draw the cmdline character in the leftmost column */
n = 1;
if (n > wp->w_width)
n = wp->w_width;
screen_fill(W_WINROW(wp) + row, W_WINROW(wp) + endrow,
W_WINCOL(wp), (int)W_WINCOL(wp) + n,
cmdwin_type, ' ', hl_attr(HLF_AT));
}
#endif
#ifdef FEAT_FOLDING
if (wp->w_p_fdc > 0)
{
int nn = n + wp->w_p_fdc;
/* draw the fold column at the left */
if (nn > W_WIDTH(wp))
nn = W_WIDTH(wp);
screen_fill(W_WINROW(wp) + row, W_WINROW(wp) + endrow,
W_WINCOL(wp) + n, (int)W_WINCOL(wp) + nn,
' ', ' ', hl_attr(HLF_FC));
n = nn;
}
#endif
#ifdef FEAT_SIGNS
if (draw_signcolumn(wp))
{
int nn = n + 2;
/* draw the sign column after the fold column */
if (nn > W_WIDTH(wp))
nn = W_WIDTH(wp);
screen_fill(W_WINROW(wp) + row, W_WINROW(wp) + endrow,
W_WINCOL(wp) + n, (int)W_WINCOL(wp) + nn,
' ', ' ', hl_attr(HLF_SC));
n = nn;
}
#endif
screen_fill(W_WINROW(wp) + row, W_WINROW(wp) + endrow,
W_WINCOL(wp) + FDC_OFF, (int)W_ENDCOL(wp),
c1, c2, hl_attr(hl));
}
set_empty_rows(wp, row);
}
#ifdef FEAT_FOLDING
/*
* Display one folded line.
*/
static void
fold_line(wp, fold_count, foldinfo, lnum, row)
win_T *wp;
long fold_count;
foldinfo_T *foldinfo;
linenr_T lnum;
int row;
{
char_u buf[51];
pos_T *top, *bot;
linenr_T lnume = lnum + fold_count - 1;
int len;
char_u *text;
int fdc;
int col;
int txtcol;
int off = (int)(current_ScreenLine - ScreenLines);
int ri;
/* Build the fold line:
* 1. Add the cmdwin_type for the command-line window
* 2. Add the 'foldcolumn'
* 3. Add the 'number' column
* 4. Compose the text
* 5. Add the text
* 6. set highlighting for the Visual area an other text
*/
col = 0;
/*
* 1. Add the cmdwin_type for the command-line window
* Ignores 'rightleft', this window is never right-left.
*/
#ifdef FEAT_CMDWIN
if (cmdwin_type != 0 && wp == curwin)
{
ScreenLines[off] = cmdwin_type;
ScreenAttrs[off] = hl_attr(HLF_AT);
#ifdef FEAT_MBYTE
if (enc_utf8)
ScreenLinesUC[off] = 0;
#endif
++col;
}
#endif
/*
* 2. Add the 'foldcolumn'
*/
fdc = wp->w_p_fdc;
if (fdc > W_WIDTH(wp) - col)
fdc = W_WIDTH(wp) - col;
if (fdc > 0)
{
fill_foldcolumn(buf, wp, TRUE, lnum);
#ifdef FEAT_RIGHTLEFT
if (wp->w_p_rl)
{
int i;
copy_text_attr(off + W_WIDTH(wp) - fdc - col, buf, fdc,
hl_attr(HLF_FC));
/* reverse the fold column */
for (i = 0; i < fdc; ++i)
ScreenLines[off + W_WIDTH(wp) - i - 1 - col] = buf[i];
}
else
#endif
copy_text_attr(off + col, buf, fdc, hl_attr(HLF_FC));
col += fdc;
}
#ifdef FEAT_RIGHTLEFT
# define RL_MEMSET(p, v, l) if (wp->w_p_rl) \
for (ri = 0; ri < l; ++ri) \
ScreenAttrs[off + (W_WIDTH(wp) - (p) - (l)) + ri] = v; \
else \
for (ri = 0; ri < l; ++ri) \
ScreenAttrs[off + (p) + ri] = v
#else
# define RL_MEMSET(p, v, l) for (ri = 0; ri < l; ++ri) \
ScreenAttrs[off + (p) + ri] = v
#endif
/* Set all attributes of the 'number' column and the text */
RL_MEMSET(col, hl_attr(HLF_FL), W_WIDTH(wp) - col);
#ifdef FEAT_SIGNS
/* If signs are being displayed, add two spaces. */
if (draw_signcolumn(wp))
{
len = W_WIDTH(wp) - col;
if (len > 0)
{
if (len > 2)
len = 2;
# ifdef FEAT_RIGHTLEFT
if (wp->w_p_rl)
/* the line number isn't reversed */
copy_text_attr(off + W_WIDTH(wp) - len - col,
(char_u *)" ", len, hl_attr(HLF_FL));
else
# endif
copy_text_attr(off + col, (char_u *)" ", len, hl_attr(HLF_FL));
col += len;
}
}
#endif
/*
* 3. Add the 'number' column
*/
if (wp->w_p_nu)
{
len = W_WIDTH(wp) - col;
if (len > 0)
{
int w = number_width(wp);
if (len > w + 1)
len = w + 1;
sprintf((char *)buf, "%*ld ", w, (long)lnum);
#ifdef FEAT_RIGHTLEFT
if (wp->w_p_rl)
/* the line number isn't reversed */
copy_text_attr(off + W_WIDTH(wp) - len - col, buf, len,
hl_attr(HLF_FL));
else
#endif
copy_text_attr(off + col, buf, len, hl_attr(HLF_FL));
col += len;
}
}
/*
* 4. Compose the folded-line string with 'foldtext', if set.
*/
text = get_foldtext(wp, lnum, lnume, foldinfo, buf);
txtcol = col; /* remember where text starts */
/*
* 5. move the text to current_ScreenLine. Fill up with "fill_fold".
* Right-left text is put in columns 0 - number-col, normal text is put
* in columns number-col - window-width.
*/
#ifdef FEAT_MBYTE
if (has_mbyte)
{
int cells;
int u8c, u8cc[MAX_MCO];
int i;
int idx;
int c_len;
char_u *p;
# ifdef FEAT_ARABIC
int prev_c = 0; /* previous Arabic character */
int prev_c1 = 0; /* first composing char for prev_c */
# endif
# ifdef FEAT_RIGHTLEFT
if (wp->w_p_rl)
idx = off;
else
# endif
idx = off + col;
/* Store multibyte characters in ScreenLines[] et al. correctly. */
for (p = text; *p != NUL; )
{
cells = (*mb_ptr2cells)(p);
c_len = (*mb_ptr2len)(p);
if (col + cells > W_WIDTH(wp)
# ifdef FEAT_RIGHTLEFT
- (wp->w_p_rl ? col : 0)
# endif
)
break;
ScreenLines[idx] = *p;
if (enc_utf8)
{
u8c = utfc_ptr2char(p, u8cc);
if (*p < 0x80 && u8cc[0] == 0)
{
ScreenLinesUC[idx] = 0;
#ifdef FEAT_ARABIC
prev_c = u8c;
#endif
}
else
{
#ifdef FEAT_ARABIC
if (p_arshape && !p_tbidi && ARABIC_CHAR(u8c))
{
/* Do Arabic shaping. */
int pc, pc1, nc;
int pcc[MAX_MCO];
int firstbyte = *p;
/* The idea of what is the previous and next
* character depends on 'rightleft'. */
if (wp->w_p_rl)
{
pc = prev_c;
pc1 = prev_c1;
nc = utf_ptr2char(p + c_len);
prev_c1 = u8cc[0];
}
else
{
pc = utfc_ptr2char(p + c_len, pcc);
nc = prev_c;
pc1 = pcc[0];
}
prev_c = u8c;
u8c = arabic_shape(u8c, &firstbyte, &u8cc[0],
pc, pc1, nc);
ScreenLines[idx] = firstbyte;
}
else
prev_c = u8c;
#endif
/* Non-BMP character: display as ? or fullwidth ?. */
if (u8c >= 0x10000)
ScreenLinesUC[idx] = (cells == 2) ? 0xff1f : (int)'?';
else
ScreenLinesUC[idx] = u8c;
for (i = 0; i < Screen_mco; ++i)
{
ScreenLinesC[i][idx] = u8cc[i];
if (u8cc[i] == 0)
break;
}
}
if (cells > 1)
ScreenLines[idx + 1] = 0;
}
else if (cells > 1) /* double-byte character */
{
if (enc_dbcs == DBCS_JPNU && *p == 0x8e)
ScreenLines2[idx] = p[1];
else
ScreenLines[idx + 1] = p[1];
}
col += cells;
idx += cells;
p += c_len;
}
}
else
#endif
{
len = (int)STRLEN(text);
if (len > W_WIDTH(wp) - col)
len = W_WIDTH(wp) - col;
if (len > 0)
{
#ifdef FEAT_RIGHTLEFT
if (wp->w_p_rl)
STRNCPY(current_ScreenLine, text, len);
else
#endif
STRNCPY(current_ScreenLine + col, text, len);
col += len;
}
}
/* Fill the rest of the line with the fold filler */
#ifdef FEAT_RIGHTLEFT
if (wp->w_p_rl)
col -= txtcol;
#endif
while (col < W_WIDTH(wp)
#ifdef FEAT_RIGHTLEFT
- (wp->w_p_rl ? txtcol : 0)
#endif
)
{
#ifdef FEAT_MBYTE
if (enc_utf8)
{
if (fill_fold >= 0x80)
{
ScreenLinesUC[off + col] = fill_fold;
ScreenLinesC[0][off + col] = 0;
}
else
ScreenLinesUC[off + col] = 0;
}
#endif
ScreenLines[off + col++] = fill_fold;
}
if (text != buf)
vim_free(text);
/*
* 6. set highlighting for the Visual area an other text.
* If all folded lines are in the Visual area, highlight the line.
*/
#ifdef FEAT_VISUAL
if (VIsual_active && wp->w_buffer == curwin->w_buffer)
{
if (ltoreq(curwin->w_cursor, VIsual))
{
/* Visual is after curwin->w_cursor */
top = &curwin->w_cursor;
bot = &VIsual;
}
else
{
/* Visual is before curwin->w_cursor */
top = &VIsual;
bot = &curwin->w_cursor;
}
if (lnum >= top->lnum
&& lnume <= bot->lnum
&& (VIsual_mode != 'v'
|| ((lnum > top->lnum
|| (lnum == top->lnum
&& top->col == 0))
&& (lnume < bot->lnum
|| (lnume == bot->lnum
&& (bot->col - (*p_sel == 'e'))
>= STRLEN(ml_get_buf(wp->w_buffer, lnume, FALSE)))))))
{
if (VIsual_mode == Ctrl_V)
{
/* Visual block mode: highlight the chars part of the block */
if (wp->w_old_cursor_fcol + txtcol < (colnr_T)W_WIDTH(wp))
{
if (wp->w_old_cursor_lcol + txtcol < (colnr_T)W_WIDTH(wp))
len = wp->w_old_cursor_lcol;
else
len = W_WIDTH(wp) - txtcol;
RL_MEMSET(wp->w_old_cursor_fcol + txtcol, hl_attr(HLF_V),
len - (int)wp->w_old_cursor_fcol);
}
}
else
{
/* Set all attributes of the text */
RL_MEMSET(txtcol, hl_attr(HLF_V), W_WIDTH(wp) - txtcol);
}
}
}
#endif
#ifdef FEAT_SYN_HL
/* Show 'cursorcolumn' in the fold line. */
if (wp->w_p_cuc && (int)wp->w_virtcol + txtcol < W_WIDTH(wp))
ScreenAttrs[off + wp->w_virtcol + txtcol] = hl_combine_attr(
ScreenAttrs[off + wp->w_virtcol + txtcol], hl_attr(HLF_CUC));
#endif
SCREEN_LINE(row + W_WINROW(wp), W_WINCOL(wp), (int)W_WIDTH(wp),
(int)W_WIDTH(wp), FALSE);
/*
* Update w_cline_height and w_cline_folded if the cursor line was
* updated (saves a call to plines() later).
*/
if (wp == curwin
&& lnum <= curwin->w_cursor.lnum
&& lnume >= curwin->w_cursor.lnum)
{
curwin->w_cline_row = row;
curwin->w_cline_height = 1;
curwin->w_cline_folded = TRUE;
curwin->w_valid |= (VALID_CHEIGHT|VALID_CROW);
}
}
/*
* Copy "buf[len]" to ScreenLines["off"] and set attributes to "attr".
*/
static void
copy_text_attr(off, buf, len, attr)
int off;
char_u *buf;
int len;
int attr;
{
int i;
mch_memmove(ScreenLines + off, buf, (size_t)len);
# ifdef FEAT_MBYTE
if (enc_utf8)
vim_memset(ScreenLinesUC + off, 0, sizeof(u8char_T) * (size_t)len);
# endif
for (i = 0; i < len; ++i)
ScreenAttrs[off + i] = attr;
}
/*
* Fill the foldcolumn at "p" for window "wp".
* Only to be called when 'foldcolumn' > 0.
*/
static void
fill_foldcolumn(p, wp, closed, lnum)
char_u *p;
win_T *wp;
int closed; /* TRUE of FALSE */
linenr_T lnum; /* current line number */
{
int i = 0;
int level;
int first_level;
int empty;
/* Init to all spaces. */
copy_spaces(p, (size_t)wp->w_p_fdc);
level = win_foldinfo.fi_level;
if (level > 0)
{
/* If there is only one column put more info in it. */
empty = (wp->w_p_fdc == 1) ? 0 : 1;
/* If the column is too narrow, we start at the lowest level that
* fits and use numbers to indicated the depth. */
first_level = level - wp->w_p_fdc - closed + 1 + empty;
if (first_level < 1)
first_level = 1;
for (i = 0; i + empty < wp->w_p_fdc; ++i)
{
if (win_foldinfo.fi_lnum == lnum
&& first_level + i >= win_foldinfo.fi_low_level)
p[i] = '-';
else if (first_level == 1)
p[i] = '|';
else if (first_level + i <= 9)
p[i] = '0' + first_level + i;
else
p[i] = '>';
if (first_level + i == level)
break;
}
}
if (closed)
p[i >= wp->w_p_fdc ? i - 1 : i] = '+';
}
#endif /* FEAT_FOLDING */
/*
* Display line "lnum" of window 'wp' on the screen.
* Start at row "startrow", stop when "endrow" is reached.
* wp->w_virtcol needs to be valid.
*
* Return the number of last row the line occupies.
*/
/* ARGSUSED */
static int
win_line(wp, lnum, startrow, endrow, nochange)
win_T *wp;
linenr_T lnum;
int startrow;
int endrow;
int nochange; /* not updating for changed text */
{
int col; /* visual column on screen */
unsigned off; /* offset in ScreenLines/ScreenAttrs */
int c = 0; /* init for GCC */
long vcol = 0; /* virtual column (for tabs) */
long vcol_prev = -1; /* "vcol" of previous character */
char_u *line; /* current line */
char_u *ptr; /* current position in "line" */
int row; /* row in the window, excl w_winrow */
int screen_row; /* row on the screen, incl w_winrow */
char_u extra[18]; /* "%ld" and 'fdc' must fit in here */
int n_extra = 0; /* number of extra chars */
char_u *p_extra = NULL; /* string of extra chars */
int c_extra = NUL; /* extra chars, all the same */
int extra_attr = 0; /* attributes when n_extra != 0 */
static char_u *at_end_str = (char_u *)""; /* used for p_extra when
displaying lcs_eol at end-of-line */
int lcs_eol_one = lcs_eol; /* lcs_eol until it's been used */
int lcs_prec_todo = lcs_prec; /* lcs_prec until it's been used */
/* saved "extra" items for when draw_state becomes WL_LINE (again) */
int saved_n_extra = 0;
char_u *saved_p_extra = NULL;
int saved_c_extra = 0;
int saved_char_attr = 0;
int n_attr = 0; /* chars with special attr */
int saved_attr2 = 0; /* char_attr saved for n_attr */
int n_attr3 = 0; /* chars with overruling special attr */
int saved_attr3 = 0; /* char_attr saved for n_attr3 */
int n_skip = 0; /* nr of chars to skip for 'nowrap' */
int fromcol, tocol; /* start/end of inverting */
int fromcol_prev = -2; /* start of inverting after cursor */
int noinvcur = FALSE; /* don't invert the cursor */
#ifdef FEAT_VISUAL
pos_T *top, *bot;
#endif
pos_T pos;
long v;
int char_attr = 0; /* attributes for next character */
int attr_pri = FALSE; /* char_attr has priority */
int area_highlighting = FALSE; /* Visual or incsearch highlighting
in this line */
int attr = 0; /* attributes for area highlighting */
int area_attr = 0; /* attributes desired by highlighting */
int search_attr = 0; /* attributes desired by 'hlsearch' */
#ifdef FEAT_SYN_HL
int vcol_save_attr = 0; /* saved attr for 'cursorcolumn' */
int syntax_attr = 0; /* attributes desired by syntax */
int has_syntax = FALSE; /* this buffer has syntax highl. */
int save_did_emsg;
#endif
#ifdef FEAT_SPELL
int has_spell = FALSE; /* this buffer has spell checking */
# define SPWORDLEN 150
char_u nextline[SPWORDLEN * 2];/* text with start of the next line */
int nextlinecol = 0; /* column where nextline[] starts */
int nextline_idx = 0; /* index in nextline[] where next line
starts */
int spell_attr = 0; /* attributes desired by spelling */
int word_end = 0; /* last byte with same spell_attr */
static linenr_T checked_lnum = 0; /* line number for "checked_col" */
static int checked_col = 0; /* column in "checked_lnum" up to which
* there are no spell errors */
static int cap_col = -1; /* column to check for Cap word */
static linenr_T capcol_lnum = 0; /* line number where "cap_col" used */
int cur_checked_col = 0; /* checked column for current line */
#endif
int extra_check; /* has syntax or linebreak */
#ifdef FEAT_MBYTE
int multi_attr = 0; /* attributes desired by multibyte */
int mb_l = 1; /* multi-byte byte length */
int mb_c = 0; /* decoded multi-byte character */
int mb_utf8 = FALSE; /* screen char is UTF-8 char */
int u8cc[MAX_MCO]; /* composing UTF-8 chars */
#endif
#ifdef FEAT_DIFF
int filler_lines; /* nr of filler lines to be drawn */
int filler_todo; /* nr of filler lines still to do + 1 */
hlf_T diff_hlf = (hlf_T)0; /* type of diff highlighting */
int change_start = MAXCOL; /* first col of changed area */
int change_end = -1; /* last col of changed area */
#endif
colnr_T trailcol = MAXCOL; /* start of trailing spaces */
#ifdef FEAT_LINEBREAK
int need_showbreak = FALSE;
#endif
#if defined(FEAT_SIGNS) || (defined(FEAT_QUICKFIX) && defined(FEAT_WINDOWS)) \
|| defined(FEAT_SYN_HL) || defined(FEAT_DIFF)
# define LINE_ATTR
int line_attr = 0; /* atrribute for the whole line */
#endif
#ifdef FEAT_SEARCH_EXTRA
match_T *shl; /* points to search_hl or match_hl */
#endif
#if defined(FEAT_SEARCH_EXTRA) || defined(FEAT_MBYTE)
int i;
#endif
#ifdef FEAT_ARABIC
int prev_c = 0; /* previous Arabic character */
int prev_c1 = 0; /* first composing char for prev_c */
#endif
#if defined(LINE_ATTR)
int did_line_attr = 0;
#endif
/* draw_state: items that are drawn in sequence: */
#define WL_START 0 /* nothing done yet */
#ifdef FEAT_CMDWIN
# define WL_CMDLINE WL_START + 1 /* cmdline window column */
#else
# define WL_CMDLINE WL_START
#endif
#ifdef FEAT_FOLDING
# define WL_FOLD WL_CMDLINE + 1 /* 'foldcolumn' */
#else
# define WL_FOLD WL_CMDLINE
#endif
#ifdef FEAT_SIGNS
# define WL_SIGN WL_FOLD + 1 /* column for signs */
#else
# define WL_SIGN WL_FOLD /* column for signs */
#endif
#define WL_NR WL_SIGN + 1 /* line number */
#if defined(FEAT_LINEBREAK) || defined(FEAT_DIFF)
# define WL_SBR WL_NR + 1 /* 'showbreak' or 'diff' */
#else
# define WL_SBR WL_NR
#endif
#define WL_LINE WL_SBR + 1 /* text in the line */
int draw_state = WL_START; /* what to draw next */
#if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
int feedback_col = 0;
int feedback_old_attr = -1;
#endif
if (startrow > endrow) /* past the end already! */
return startrow;
row = startrow;
screen_row = row + W_WINROW(wp);
/*
* To speed up the loop below, set extra_check when there is linebreak,
* trailing white space and/or syntax processing to be done.
*/
#ifdef FEAT_LINEBREAK
extra_check = wp->w_p_lbr;
#else
extra_check = 0;
#endif
#ifdef FEAT_SYN_HL
if (syntax_present(wp->w_buffer) && !wp->w_buffer->b_syn_error)
{
/* Prepare for syntax highlighting in this line. When there is an
* error, stop syntax highlighting. */
save_did_emsg = did_emsg;
did_emsg = FALSE;
syntax_start(wp, lnum);
if (did_emsg)
wp->w_buffer->b_syn_error = TRUE;
else
{
did_emsg = save_did_emsg;
has_syntax = TRUE;
extra_check = TRUE;
}
}
#endif
#ifdef FEAT_SPELL
if (wp->w_p_spell
&& *wp->w_buffer->b_p_spl != NUL
&& wp->w_buffer->b_langp.ga_len > 0
&& *(char **)(wp->w_buffer->b_langp.ga_data) != NULL)
{
/* Prepare for spell checking. */
has_spell = TRUE;
extra_check = TRUE;
/* Get the start of the next line, so that words that wrap to the next
* line are found too: "et<line-break>al.".
* Trick: skip a few chars for C/shell/Vim comments */
nextline[SPWORDLEN] = NUL;
if (lnum < wp->w_buffer->b_ml.ml_line_count)
{
line = ml_get_buf(wp->w_buffer, lnum + 1, FALSE);
spell_cat_line(nextline + SPWORDLEN, line, SPWORDLEN);
}
/* When a word wrapped from the previous line the start of the current
* line is valid. */
if (lnum == checked_lnum)
cur_checked_col = checked_col;
checked_lnum = 0;
/* When there was a sentence end in the previous line may require a
* word starting with capital in this line. In line 1 always check
* the first word. */
if (lnum != capcol_lnum)
cap_col = -1;
if (lnum == 1)
cap_col = 0;
capcol_lnum = 0;
}
#endif
/*
* handle visual active in this window
*/
fromcol = -10;
tocol = MAXCOL;
#ifdef FEAT_VISUAL
if (VIsual_active && wp->w_buffer == curwin->w_buffer)
{
/* Visual is after curwin->w_cursor */
if (ltoreq(curwin->w_cursor, VIsual))
{
top = &curwin->w_cursor;
bot = &VIsual;
}
else /* Visual is before curwin->w_cursor */
{
top = &VIsual;
bot = &curwin->w_cursor;
}
if (VIsual_mode == Ctrl_V) /* block mode */
{
if (lnum >= top->lnum && lnum <= bot->lnum)
{
fromcol = wp->w_old_cursor_fcol;
tocol = wp->w_old_cursor_lcol;
}
}
else /* non-block mode */
{
if (lnum > top->lnum && lnum <= bot->lnum)
fromcol = 0;
else if (lnum == top->lnum)
{
if (VIsual_mode == 'V') /* linewise */
fromcol = 0;
else
{
getvvcol(wp, top, (colnr_T *)&fromcol, NULL, NULL);
if (gchar_pos(top) == NUL)
tocol = fromcol + 1;
}
}
if (VIsual_mode != 'V' && lnum == bot->lnum)
{
if (*p_sel == 'e' && bot->col == 0
#ifdef FEAT_VIRTUALEDIT
&& bot->coladd == 0
#endif
)
{
fromcol = -10;
tocol = MAXCOL;
}
else if (bot->col == MAXCOL)
tocol = MAXCOL;
else
{
pos = *bot;
if (*p_sel == 'e')
getvvcol(wp, &pos, (colnr_T *)&tocol, NULL, NULL);
else
{
getvvcol(wp, &pos, NULL, NULL, (colnr_T *)&tocol);
++tocol;
}
}
}
}
#ifndef MSDOS
/* Check if the character under the cursor should not be inverted */
if (!highlight_match && lnum == curwin->w_cursor.lnum && wp == curwin
# ifdef FEAT_GUI
&& !gui.in_use
# endif
)
noinvcur = TRUE;
#endif
/* if inverting in this line set area_highlighting */
if (fromcol >= 0)
{
area_highlighting = TRUE;
attr = hl_attr(HLF_V);
#if defined(FEAT_CLIPBOARD) && defined(FEAT_X11)
if (clip_star.available && !clip_star.owned && clip_isautosel())
attr = hl_attr(HLF_VNC);
#endif
}
}
/*
* handle 'incsearch' and ":s///c" highlighting
*/
else
#endif /* FEAT_VISUAL */
if (highlight_match
&& wp == curwin
&& lnum >= curwin->w_cursor.lnum
&& lnum <= curwin->w_cursor.lnum + search_match_lines)
{
if (lnum == curwin->w_cursor.lnum)
getvcol(curwin, &(curwin->w_cursor),
(colnr_T *)&fromcol, NULL, NULL);
else
fromcol = 0;
if (lnum == curwin->w_cursor.lnum + search_match_lines)
{
pos.lnum = lnum;
pos.col = search_match_endcol;
getvcol(curwin, &pos, (colnr_T *)&tocol, NULL, NULL);
}
else
tocol = MAXCOL;
if (fromcol == tocol) /* do at least one character */
tocol = fromcol + 1; /* happens when past end of line */
area_highlighting = TRUE;
attr = hl_attr(HLF_I);
}
#ifdef FEAT_DIFF
filler_lines = diff_check(wp, lnum);
if (filler_lines < 0)
{
if (filler_lines == -1)
{
if (diff_find_change(wp, lnum, &change_start, &change_end))
diff_hlf = HLF_ADD; /* added line */
else if (change_start == 0)
diff_hlf = HLF_TXD; /* changed text */
else
diff_hlf = HLF_CHD; /* changed line */
}
else
diff_hlf = HLF_ADD; /* added line */
filler_lines = 0;
area_highlighting = TRUE;
}
if (lnum == wp->w_topline)
filler_lines = wp->w_topfill;
filler_todo = filler_lines;
#endif
#ifdef LINE_ATTR
# ifdef FEAT_SIGNS
/* If this line has a sign with line highlighting set line_attr. */
v = buf_getsigntype(wp->w_buffer, lnum, SIGN_LINEHL);
if (v != 0)
line_attr = sign_get_attr((int)v, TRUE);
# endif
# if defined(FEAT_QUICKFIX) && defined(FEAT_WINDOWS)
/* Highlight the current line in the quickfix window. */
if (bt_quickfix(wp->w_buffer) && qf_current_entry(wp) == lnum)
line_attr = hl_attr(HLF_L);
# endif
if (line_attr != 0)
area_highlighting = TRUE;
#endif
line = ml_get_buf(wp->w_buffer, lnum, FALSE);
ptr = line;
#ifdef FEAT_SPELL
if (has_spell)
{
/* For checking first word with a capital skip white space. */
if (cap_col == 0)
cap_col = (int)(skipwhite(line) - line);
/* To be able to spell-check over line boundaries copy the end of the
* current line into nextline[]. Above the start of the next line was
* copied to nextline[SPWORDLEN]. */
if (nextline[SPWORDLEN] == NUL)
{
/* No next line or it is empty. */
nextlinecol = MAXCOL;
nextline_idx = 0;
}
else
{
v = (long)STRLEN(line);
if (v < SPWORDLEN)
{
/* Short line, use it completely and append the start of the
* next line. */
nextlinecol = 0;
mch_memmove(nextline, line, (size_t)v);
mch_memmove(nextline + v, nextline + SPWORDLEN,
STRLEN(nextline + SPWORDLEN) + 1);
nextline_idx = v + 1;
}
else
{
/* Long line, use only the last SPWORDLEN bytes. */
nextlinecol = v - SPWORDLEN;
mch_memmove(nextline, line + nextlinecol, SPWORDLEN);
nextline_idx = SPWORDLEN + 1;
}
}
}
#endif
/* find start of trailing whitespace */
if (wp->w_p_list && lcs_trail)
{
trailcol = (colnr_T)STRLEN(ptr);
while (trailcol > (colnr_T)0 && vim_iswhite(ptr[trailcol - 1]))
--trailcol;
trailcol += (colnr_T) (ptr - line);
extra_check = TRUE;
}
/*
* 'nowrap' or 'wrap' and a single line that doesn't fit: Advance to the
* first character to be displayed.
*/
if (wp->w_p_wrap)
v = wp->w_skipcol;
else
v = wp->w_leftcol;
if (v > 0)
{
#ifdef FEAT_MBYTE
char_u *prev_ptr = ptr;
#endif
while (vcol < v && *ptr != NUL)
{
c = win_lbr_chartabsize(wp, ptr, (colnr_T)vcol, NULL);
vcol += c;
#ifdef FEAT_MBYTE
prev_ptr = ptr;
#endif
mb_ptr_adv(ptr);
}
#ifdef FEAT_VIRTUALEDIT
/* When 'virtualedit' is set the end of the line may be before the
* start of the displayed part. */
if (vcol < v && *ptr == NUL && virtual_active())
vcol = v;
#endif
/* Handle a character that's not completely on the screen: Put ptr at
* that character but skip the first few screen characters. */
if (vcol > v)
{
vcol -= c;
#ifdef FEAT_MBYTE
ptr = prev_ptr;
#else
--ptr;
#endif
n_skip = v - vcol;
}
/*
* Adjust for when the inverted text is before the screen,
* and when the start of the inverted text is before the screen.
*/
if (tocol <= vcol)
fromcol = 0;
else if (fromcol >= 0 && fromcol < vcol)
fromcol = vcol;
#ifdef FEAT_LINEBREAK
/* When w_skipcol is non-zero, first line needs 'showbreak' */
if (wp->w_p_wrap)
need_showbreak = TRUE;
#endif
#ifdef FEAT_SPELL
/* When spell checking a word we need to figure out the start of the
* word and if it's badly spelled or not. */
if (has_spell)
{
int len;
hlf_T spell_hlf = HLF_COUNT;
pos = wp->w_cursor;
wp->w_cursor.lnum = lnum;
wp->w_cursor.col = (colnr_T)(ptr - line);
len = spell_move_to(wp, FORWARD, TRUE, TRUE, &spell_hlf);
if (len == 0 || (int)wp->w_cursor.col > ptr - line)
{
/* no bad word found at line start, don't check until end of a
* word */
spell_hlf = HLF_COUNT;
word_end = (int)(spell_to_word_end(ptr, wp->w_buffer) - line + 1);
}
else
{
/* bad word found, use attributes until end of word */
word_end = wp->w_cursor.col + len + 1;
/* Turn index into actual attributes. */
if (spell_hlf != HLF_COUNT)
spell_attr = highlight_attr[spell_hlf];
}
wp->w_cursor = pos;
# ifdef FEAT_SYN_HL
/* Need to restart syntax highlighting for this line. */
if (has_syntax)
syntax_start(wp, lnum);
# endif
}
#endif
}
/*
* Correct highlighting for cursor that can't be disabled.
* Avoids having to check this for each character.
*/
if (fromcol >= 0)
{
if (noinvcur)
{
if ((colnr_T)fromcol == wp->w_virtcol)
{
/* highlighting starts at cursor, let it start just after the
* cursor */
fromcol_prev = fromcol;
fromcol = -1;
}
else if ((colnr_T)fromcol < wp->w_virtcol)
/* restart highlighting after the cursor */
fromcol_prev = wp->w_virtcol;
}
if (fromcol >= tocol)
fromcol = -1;
}
#ifdef FEAT_SEARCH_EXTRA
/*
* Handle highlighting the last used search pattern and ":match".
* Do this for both search_hl and match_hl[3].
*/
for (i = 3; i >= 0; --i)
{
shl = (i == 3) ? &search_hl : &match_hl[i];
shl->startcol = MAXCOL;
shl->endcol = MAXCOL;
shl->attr_cur = 0;
if (shl->rm.regprog != NULL)
{
v = (long)(ptr - line);
next_search_hl(wp, shl, lnum, (colnr_T)v);
/* Need to get the line again, a multi-line regexp may have made it
* invalid. */
line = ml_get_buf(wp->w_buffer, lnum, FALSE);
ptr = line + v;
if (shl->lnum != 0 && shl->lnum <= lnum)
{
if (shl->lnum == lnum)
shl->startcol = shl->rm.startpos[0].col;
else
shl->startcol = 0;
if (lnum == shl->lnum + shl->rm.endpos[0].lnum
- shl->rm.startpos[0].lnum)
shl->endcol = shl->rm.endpos[0].col;
else
shl->endcol = MAXCOL;
/* Highlight one character for an empty match. */
if (shl->startcol == shl->endcol)
{
#ifdef FEAT_MBYTE
if (has_mbyte && line[shl->endcol] != NUL)
shl->endcol += (*mb_ptr2len)(line + shl->endcol);
else
#endif
++shl->endcol;
}
if ((long)shl->startcol < v) /* match at leftcol */
{
shl->attr_cur = shl->attr;
search_attr = shl->attr;
}
area_highlighting = TRUE;
}
}
}
#endif
#ifdef FEAT_SYN_HL
/* Cursor line highlighting for 'cursorline'. Not when Visual mode is
* active, because it's not clear what is selected then. */
if (wp->w_p_cul && lnum == wp->w_cursor.lnum && !VIsual_active)
{
line_attr = hl_attr(HLF_CUL);
area_highlighting = TRUE;
}
#endif
off = (unsigned)(current_ScreenLine - ScreenLines);
col = 0;
#ifdef FEAT_RIGHTLEFT
if (wp->w_p_rl)
{
/* Rightleft window: process the text in the normal direction, but put
* it in current_ScreenLine[] from right to left. Start at the
* rightmost column of the window. */
col = W_WIDTH(wp) - 1;
off += col;
}
#endif
/*
* Repeat for the whole displayed line.
*/
for (;;)
{
/* Skip this quickly when working on the text. */
if (draw_state != WL_LINE)
{
#ifdef FEAT_CMDWIN
if (draw_state == WL_CMDLINE - 1 && n_extra == 0)
{
draw_state = WL_CMDLINE;
if (cmdwin_type != 0 && wp == curwin)
{
/* Draw the cmdline character. */
*extra = cmdwin_type;
n_extra = 1;
p_extra = extra;
c_extra = NUL;
char_attr = hl_attr(HLF_AT);
}
}
#endif
#ifdef FEAT_FOLDING
if (draw_state == WL_FOLD - 1 && n_extra == 0)
{
draw_state = WL_FOLD;
if (wp->w_p_fdc > 0)
{
/* Draw the 'foldcolumn'. */
fill_foldcolumn(extra, wp, FALSE, lnum);
n_extra = wp->w_p_fdc;
p_extra = extra;
c_extra = NUL;
char_attr = hl_attr(HLF_FC);
}
}
#endif
#ifdef FEAT_SIGNS
if (draw_state == WL_SIGN - 1 && n_extra == 0)
{
draw_state = WL_SIGN;
/* Show the sign column when there are any signs in this
* buffer or when using Netbeans. */
if (draw_signcolumn(wp)
# ifdef FEAT_DIFF
&& filler_todo <= 0
# endif
)
{
int_u text_sign;
# ifdef FEAT_SIGN_ICONS
int_u icon_sign;
# endif
/* Draw two cells with the sign value or blank. */
c_extra = ' ';
char_attr = hl_attr(HLF_SC);
n_extra = 2;
if (row == startrow)
{
text_sign = buf_getsigntype(wp->w_buffer, lnum,
SIGN_TEXT);
# ifdef FEAT_SIGN_ICONS
icon_sign = buf_getsigntype(wp->w_buffer, lnum,
SIGN_ICON);
if (gui.in_use && icon_sign != 0)
{
/* Use the image in this position. */
c_extra = SIGN_BYTE;
# ifdef FEAT_NETBEANS_INTG
if (buf_signcount(wp->w_buffer, lnum) > 1)
c_extra = MULTISIGN_BYTE;
# endif
char_attr = icon_sign;
}
else
# endif
if (text_sign != 0)
{
p_extra = sign_get_text(text_sign);
if (p_extra != NULL)
{
c_extra = NUL;
n_extra = (int)STRLEN(p_extra);
}
char_attr = sign_get_attr(text_sign, FALSE);
}
}
}
}
#endif
if (draw_state == WL_NR - 1 && n_extra == 0)
{
draw_state = WL_NR;
/* Display the line number. After the first fill with blanks
* when the 'n' flag isn't in 'cpo' */
if (wp->w_p_nu
&& (row == startrow
#ifdef FEAT_DIFF
+ filler_lines
#endif
|| vim_strchr(p_cpo, CPO_NUMCOL) == NULL))
{
/* Draw the line number (empty space after wrapping). */
if (row == startrow
#ifdef FEAT_DIFF
+ filler_lines
#endif
)
{
sprintf((char *)extra, "%*ld ",
number_width(wp), (long)lnum);
if (wp->w_skipcol > 0)
for (p_extra = extra; *p_extra == ' '; ++p_extra)
*p_extra = '-';
#ifdef FEAT_RIGHTLEFT
if (wp->w_p_rl) /* reverse line numbers */
rl_mirror(extra);
#endif
p_extra = extra;
c_extra = NUL;
}
else
c_extra = ' ';
n_extra = number_width(wp) + 1;
char_attr = hl_attr(HLF_N);
#ifdef FEAT_SYN_HL
/* When 'cursorline' is set highlight the line number of
* the current line differently. */
if (wp->w_p_cul && lnum == wp->w_cursor.lnum)
char_attr = hl_combine_attr(hl_attr(HLF_CUL), char_attr);
#endif
}
}
#if defined(FEAT_LINEBREAK) || defined(FEAT_DIFF)
if (draw_state == WL_SBR - 1 && n_extra == 0)
{
draw_state = WL_SBR;
# ifdef FEAT_DIFF
if (filler_todo > 0)
{
/* Draw "deleted" diff line(s). */
if (char2cells(fill_diff) > 1)
c_extra = '-';
else
c_extra = fill_diff;
# ifdef FEAT_RIGHTLEFT
if (wp->w_p_rl)
n_extra = col + 1;
else
# endif
n_extra = W_WIDTH(wp) - col;
char_attr = hl_attr(HLF_DED);
}
# endif
# ifdef FEAT_LINEBREAK
if (*p_sbr != NUL && need_showbreak)
{
/* Draw 'showbreak' at the start of each broken line. */
p_extra = p_sbr;
c_extra = NUL;
n_extra = (int)STRLEN(p_sbr);
char_attr = hl_attr(HLF_AT);
need_showbreak = FALSE;
/* Correct end of highlighted area for 'showbreak',
* required when 'linebreak' is also set. */
if (tocol == vcol)
tocol += n_extra;
}
# endif
}
#endif
if (draw_state == WL_LINE - 1 && n_extra == 0)
{
draw_state = WL_LINE;
if (saved_n_extra)
{
/* Continue item from end of wrapped line. */
n_extra = saved_n_extra;
c_extra = saved_c_extra;
p_extra = saved_p_extra;
char_attr = saved_char_attr;
}
else
char_attr = 0;
}
}
/* When still displaying '$' of change command, stop at cursor */
if (dollar_vcol != 0 && wp == curwin
&& lnum == wp->w_cursor.lnum && vcol >= (long)wp->w_virtcol
#ifdef FEAT_DIFF
&& filler_todo <= 0
#endif
)
{
SCREEN_LINE(screen_row, W_WINCOL(wp), col, -(int)W_WIDTH(wp),
wp->w_p_rl);
/* Pretend we have finished updating the window. Except when
* 'cursorcolumn' is set. */
#ifdef FEAT_SYN_HL
if (wp->w_p_cuc)
row = wp->w_cline_row + wp->w_cline_height;
else
#endif
row = wp->w_height;
break;
}
if (draw_state == WL_LINE && area_highlighting)
{
/* handle Visual or match highlighting in this line */
if (vcol == fromcol
#ifdef FEAT_MBYTE
|| (has_mbyte && vcol + 1 == fromcol && n_extra == 0
&& (*mb_ptr2cells)(ptr) > 1)
#endif
|| ((int)vcol_prev == fromcol_prev
&& vcol < tocol))
area_attr = attr; /* start highlighting */
else if (area_attr != 0
&& (vcol == tocol
|| (noinvcur && (colnr_T)vcol == wp->w_virtcol)))
area_attr = 0; /* stop highlighting */
#ifdef FEAT_SEARCH_EXTRA
if (!n_extra)
{
/*
* Check for start/end of search pattern match.
* After end, check for start/end of next match.
* When another match, have to check for start again.
* Watch out for matching an empty string!
* Do this first for search_hl, then for match_hl, so that
* ":match" overrules 'hlsearch'.
*/
v = (long)(ptr - line);
for (i = 3; i >= 0; --i)
{
shl = (i == 3) ? &search_hl : &match_hl[i];
while (shl->rm.regprog != NULL)
{
if (shl->startcol != MAXCOL
&& v >= (long)shl->startcol
&& v < (long)shl->endcol)
{
shl->attr_cur = shl->attr;
}
else if (v == (long)shl->endcol)
{
shl->attr_cur = 0;
next_search_hl(wp, shl, lnum, (colnr_T)v);
/* Need to get the line again, a multi-line regexp
* may have made it invalid. */
line = ml_get_buf(wp->w_buffer, lnum, FALSE);
ptr = line + v;
if (shl->lnum == lnum)
{
shl->startcol = shl->rm.startpos[0].col;
if (shl->rm.endpos[0].lnum == 0)
shl->endcol = shl->rm.endpos[0].col;
else
shl->endcol = MAXCOL;
if (shl->startcol == shl->endcol)
{
/* highlight empty match, try again after
* it */
#ifdef FEAT_MBYTE
if (has_mbyte)
shl->endcol += (*mb_ptr2len)(line
+ shl->endcol);
else
#endif
++shl->endcol;
}
/* Loop to check if the match starts at the
* current position */
continue;
}
}
break;
}
}
/* ":match" highlighting overrules 'hlsearch' */
for (i = 0; i <= 3; ++i)
if (i == 3)
search_attr = search_hl.attr_cur;
else if (match_hl[i].attr_cur != 0)
{
search_attr = match_hl[i].attr_cur;
break;
}
}
#endif
#ifdef FEAT_DIFF
if (diff_hlf != (hlf_T)0)
{
if (diff_hlf == HLF_CHD && ptr - line >= change_start)
diff_hlf = HLF_TXD; /* changed text */
if (diff_hlf == HLF_TXD && ptr - line > change_end)
diff_hlf = HLF_CHD; /* changed line */
line_attr = hl_attr(diff_hlf);
}
#endif
/* Decide which of the highlight attributes to use. */
attr_pri = TRUE;
if (area_attr != 0)
char_attr = area_attr;
else if (search_attr != 0)
char_attr = search_attr;
#ifdef LINE_ATTR
/* Use line_attr when not in the Visual or 'incsearch' area
* (area_attr may be 0 when "noinvcur" is set). */
else if (line_attr != 0 && ((fromcol == -10 && tocol == MAXCOL)
|| (vcol < fromcol || vcol >= tocol)))
char_attr = line_attr;
#endif
else
{
attr_pri = FALSE;
#ifdef FEAT_SYN_HL
if (has_syntax)
char_attr = syntax_attr;
else
#endif
char_attr = 0;
}
}
/*
* Get the next character to put on the screen.
*/
/*
* The 'extra' array contains the extra stuff that is inserted to
* represent special characters (non-printable stuff). When all
* characters are the same, c_extra is used.
* For the '$' of the 'list' option, n_extra == 1, p_extra == "".
*/
if (n_extra > 0)
{
if (c_extra != NUL)
{
c = c_extra;
#ifdef FEAT_MBYTE
mb_c = c; /* doesn't handle non-utf-8 multi-byte! */
if (enc_utf8 && (*mb_char2len)(c) > 1)
{
mb_utf8 = TRUE;
u8cc[0] = 0;
c = 0xc0;
}
else
mb_utf8 = FALSE;
#endif
}
else
{
c = *p_extra;
#ifdef FEAT_MBYTE
if (has_mbyte)
{
mb_c = c;
if (enc_utf8)
{
/* If the UTF-8 character is more than one byte:
* Decode it into "mb_c". */
mb_l = (*mb_ptr2len)(p_extra);
mb_utf8 = FALSE;
if (mb_l > n_extra)
mb_l = 1;
else if (mb_l > 1)
{
mb_c = utfc_ptr2char(p_extra, u8cc);
mb_utf8 = TRUE;
c = 0xc0;
}
}
else
{
/* if this is a DBCS character, put it in "mb_c" */
mb_l = MB_BYTE2LEN(c);
if (mb_l >= n_extra)
mb_l = 1;
else if (mb_l > 1)
mb_c = (c << 8) + p_extra[1];
}
if (mb_l == 0) /* at the NUL at end-of-line */
mb_l = 1;
/* If a double-width char doesn't fit display a '>' in the
* last column. */
if ((
# ifdef FEAT_RIGHTLEFT
wp->w_p_rl ? (col <= 0) :
# endif
(col >= W_WIDTH(wp) - 1))
&& (*mb_char2cells)(mb_c) == 2)
{
c = '>';
mb_c = c;
mb_l = 1;
mb_utf8 = FALSE;
multi_attr = hl_attr(HLF_AT);
/* put the pointer back to output the double-width
* character at the start of the next line. */
++n_extra;
--p_extra;
}
else
{
n_extra -= mb_l - 1;
p_extra += mb_l - 1;
}
}
#endif
++p_extra;
}
--n_extra;
}
else
{
/*
* Get a character from the line itself.
*/
c = *ptr;
#ifdef FEAT_MBYTE
if (has_mbyte)
{
mb_c = c;
if (enc_utf8)
{
/* If the UTF-8 character is more than one byte: Decode it
* into "mb_c". */
mb_l = (*mb_ptr2len)(ptr);
mb_utf8 = FALSE;
if (mb_l > 1)
{
mb_c = utfc_ptr2char(ptr, u8cc);
/* Overlong encoded ASCII or ASCII with composing char
* is displayed normally, except a NUL. */
if (mb_c < 0x80)
c = mb_c;
mb_utf8 = TRUE;
/* At start of the line we can have a composing char.
* Draw it as a space with a composing char. */
if (utf_iscomposing(mb_c))
{
for (i = Screen_mco - 1; i > 0; --i)
u8cc[i] = u8cc[i - 1];
u8cc[0] = mb_c;
mb_c = ' ';
}
}
if ((mb_l == 1 && c >= 0x80)
|| (mb_l >= 1 && mb_c == 0)
|| (mb_l > 1 && (!vim_isprintc(mb_c)
|| mb_c >= 0x10000)))
{
/*
* Illegal UTF-8 byte: display as <xx>.
* Non-BMP character : display as ? or fullwidth ?.
*/
if (mb_c < 0x10000)
{
transchar_hex(extra, mb_c);
# ifdef FEAT_RIGHTLEFT
if (wp->w_p_rl) /* reverse */
rl_mirror(extra);
# endif
}
else if (utf_char2cells(mb_c) != 2)
STRCPY(extra, "?");
else
/* 0xff1f in UTF-8: full-width '?' */
STRCPY(extra, "\357\274\237");
p_extra = extra;
c = *p_extra;
mb_c = mb_ptr2char_adv(&p_extra);
mb_utf8 = (c >= 0x80);
n_extra = (int)STRLEN(p_extra);
c_extra = NUL;
if (area_attr == 0 && search_attr == 0)
{
n_attr = n_extra + 1;
extra_attr = hl_attr(HLF_8);
saved_attr2 = char_attr; /* save current attr */
}
}
else if (mb_l == 0) /* at the NUL at end-of-line */
mb_l = 1;
#ifdef FEAT_ARABIC
else if (p_arshape && !p_tbidi && ARABIC_CHAR(mb_c))
{
/* Do Arabic shaping. */
int pc, pc1, nc;
int pcc[MAX_MCO];
/* The idea of what is the previous and next
* character depends on 'rightleft'. */
if (wp->w_p_rl)
{
pc = prev_c;
pc1 = prev_c1;
nc = utf_ptr2char(ptr + mb_l);
prev_c1 = u8cc[0];
}
else
{
pc = utfc_ptr2char(ptr + mb_l, pcc);
nc = prev_c;
pc1 = pcc[0];
}
prev_c = mb_c;
mb_c = arabic_shape(mb_c, &c, &u8cc[0], pc, pc1, nc);
}
else
prev_c = mb_c;
#endif
}
else /* enc_dbcs */
{
mb_l = MB_BYTE2LEN(c);
if (mb_l == 0) /* at the NUL at end-of-line */
mb_l = 1;
else if (mb_l > 1)
{
/* We assume a second byte below 32 is illegal.
* Hopefully this is OK for all double-byte encodings!
*/
if (ptr[1] >= 32)
mb_c = (c << 8) + ptr[1];
else
{
if (ptr[1] == NUL)
{
/* head byte at end of line */
mb_l = 1;
transchar_nonprint(extra, c);
}
else
{
/* illegal tail byte */
mb_l = 2;
STRCPY(extra, "XX");
}
p_extra = extra;
n_extra = (int)STRLEN(extra) - 1;
c_extra = NUL;
c = *p_extra++;
if (area_attr == 0 && search_attr == 0)
{
n_attr = n_extra + 1;
extra_attr = hl_attr(HLF_8);
saved_attr2 = char_attr; /* save current attr */
}
mb_c = c;
}
}
}
/* If a double-width char doesn't fit display a '>' in the
* last column; the character is displayed at the start of the
* next line. */
if ((
# ifdef FEAT_RIGHTLEFT
wp->w_p_rl ? (col <= 0) :
# endif
(col >= W_WIDTH(wp) - 1))
&& (*mb_char2cells)(mb_c) == 2)
{
c = '>';
mb_c = c;
mb_utf8 = FALSE;
mb_l = 1;
multi_attr = hl_attr(HLF_AT);
/* Put pointer back so that the character will be
* displayed at the start of the next line. */
--ptr;
}
else if (*ptr != NUL)
ptr += mb_l - 1;
/* If a double-width char doesn't fit at the left side display
* a '<' in the first column. */
if (n_skip > 0 && mb_l > 1)
{
extra[0] = '<';
p_extra = extra;
n_extra = 1;
c_extra = NUL;
c = ' ';
if (area_attr == 0 && search_attr == 0)
{
n_attr = n_extra + 1;
extra_attr = hl_attr(HLF_AT);
saved_attr2 = char_attr; /* save current attr */
}
mb_c = c;
mb_utf8 = FALSE;
mb_l = 1;
}
}
#endif
++ptr;
/* 'list' : change char 160 to lcs_nbsp. */
if (wp->w_p_list && (c == 160
#ifdef FEAT_MBYTE
|| (mb_utf8 && mb_c == 160)
#endif
) && lcs_nbsp)
{
c = lcs_nbsp;
if (area_attr == 0 && search_attr == 0)
{
n_attr = 1;
extra_attr = hl_attr(HLF_8);
saved_attr2 = char_attr; /* save current attr */
}
#ifdef FEAT_MBYTE
mb_c = c;
if (enc_utf8 && (*mb_char2len)(c) > 1)
{
mb_utf8 = TRUE;
u8cc[0] = 0;
c = 0xc0;
}
else
mb_utf8 = FALSE;
#endif
}
if (extra_check)
{
#ifdef FEAT_SPELL
int can_spell = TRUE;
#endif
#ifdef FEAT_SYN_HL
/* Get syntax attribute, unless still at the start of the line
* (double-wide char that doesn't fit). */
v = (long)(ptr - line);
if (has_syntax && v > 0)
{
/* Get the syntax attribute for the character. If there
* is an error, disable syntax highlighting. */
save_did_emsg = did_emsg;
did_emsg = FALSE;
syntax_attr = get_syntax_attr((colnr_T)v - 1,
# ifdef FEAT_SPELL
has_spell ? &can_spell :
# endif
NULL);
if (did_emsg)
{
wp->w_buffer->b_syn_error = TRUE;
has_syntax = FALSE;
}
else
did_emsg = save_did_emsg;
/* Need to get the line again, a multi-line regexp may
* have made it invalid. */
line = ml_get_buf(wp->w_buffer, lnum, FALSE);
ptr = line + v;
if (!attr_pri)
char_attr = syntax_attr;
else
char_attr = hl_combine_attr(syntax_attr, char_attr);
}
#endif
#ifdef FEAT_SPELL
/* Check spelling (unless at the end of the line).
* Only do this when there is no syntax highlighting, the
* @Spell cluster is not used or the current syntax item
* contains the @Spell cluster. */
if (has_spell && v >= word_end && v > cur_checked_col)
{
spell_attr = 0;
# ifdef FEAT_SYN_HL
if (!attr_pri)
char_attr = syntax_attr;
# endif
if (c != 0 && (
# ifdef FEAT_SYN_HL
!has_syntax ||
# endif
can_spell))
{
char_u *prev_ptr, *p;
int len;
hlf_T spell_hlf = HLF_COUNT;
# ifdef FEAT_MBYTE
if (has_mbyte)
{
prev_ptr = ptr - mb_l;
v -= mb_l - 1;
}
else
# endif
prev_ptr = ptr - 1;
/* Use nextline[] if possible, it has the start of the
* next line concatenated. */
if ((prev_ptr - line) - nextlinecol >= 0)
p = nextline + (prev_ptr - line) - nextlinecol;
else
p = prev_ptr;
cap_col -= (int)(prev_ptr - line);
len = spell_check(wp, p, &spell_hlf, &cap_col,
nochange);
word_end = v + len;
/* In Insert mode only highlight a word that
* doesn't touch the cursor. */
if (spell_hlf != HLF_COUNT
&& (State & INSERT) != 0
&& wp->w_cursor.lnum == lnum
&& wp->w_cursor.col >=
(colnr_T)(prev_ptr - line)
&& wp->w_cursor.col < (colnr_T)word_end)
{
spell_hlf = HLF_COUNT;
spell_redraw_lnum = lnum;
}
if (spell_hlf == HLF_COUNT && p != prev_ptr
&& (p - nextline) + len > nextline_idx)
{
/* Remember that the good word continues at the
* start of the next line. */
checked_lnum = lnum + 1;
checked_col = (int)((p - nextline) + len - nextline_idx);
}
/* Turn index into actual attributes. */
if (spell_hlf != HLF_COUNT)
spell_attr = highlight_attr[spell_hlf];
if (cap_col > 0)
{
if (p != prev_ptr
&& (p - nextline) + cap_col >= nextline_idx)
{
/* Remember that the word in the next line
* must start with a capital. */
capcol_lnum = lnum + 1;
cap_col = (int)((p - nextline) + cap_col
- nextline_idx);
}
else
/* Compute the actual column. */
cap_col += (int)(prev_ptr - line);
}
}
}
if (spell_attr != 0)
{
if (!attr_pri)
char_attr = hl_combine_attr(char_attr, spell_attr);
else
char_attr = hl_combine_attr(spell_attr, char_attr);
}
#endif
#ifdef FEAT_LINEBREAK
/*
* Found last space before word: check for line break.
*/
if (wp->w_p_lbr && vim_isbreak(c) && !vim_isbreak(*ptr)
&& !wp->w_p_list)
{
n_extra = win_lbr_chartabsize(wp, ptr - (
# ifdef FEAT_MBYTE
has_mbyte ? mb_l :
# endif
1), (colnr_T)vcol, NULL) - 1;
c_extra = ' ';
if (vim_iswhite(c))
c = ' ';
}
#endif
if (trailcol != MAXCOL && ptr > line + trailcol && c == ' ')
{
c = lcs_trail;
if (!attr_pri)
{
n_attr = 1;
extra_attr = hl_attr(HLF_8);
saved_attr2 = char_attr; /* save current attr */
}
#ifdef FEAT_MBYTE
mb_c = c;
if (enc_utf8 && (*mb_char2len)(c) > 1)
{
mb_utf8 = TRUE;
u8cc[0] = 0;
c = 0xc0;
}
else
mb_utf8 = FALSE;
#endif
}
}
/*
* Handling of non-printable characters.
*/
if (!(chartab[c & 0xff] & CT_PRINT_CHAR))
{
/*
* when getting a character from the file, we may have to
* turn it into something else on the way to putting it
* into "ScreenLines".
*/
if (c == TAB && (!wp->w_p_list || lcs_tab1))
{
/* tab amount depends on current column */
n_extra = (int)wp->w_buffer->b_p_ts
- vcol % (int)wp->w_buffer->b_p_ts - 1;
#ifdef FEAT_MBYTE
mb_utf8 = FALSE; /* don't draw as UTF-8 */
#endif
if (wp->w_p_list)
{
c = lcs_tab1;
c_extra = lcs_tab2;
n_attr = n_extra + 1;
extra_attr = hl_attr(HLF_8);
saved_attr2 = char_attr; /* save current attr */
#ifdef FEAT_MBYTE
mb_c = c;
if (enc_utf8 && (*mb_char2len)(c) > 1)
{
mb_utf8 = TRUE;
u8cc[0] = 0;
c = 0xc0;
}
#endif
}
else
{
c_extra = ' ';
c = ' ';
}
}
else if (c == NUL
&& ((wp->w_p_list && lcs_eol > 0)
|| ((fromcol >= 0 || fromcol_prev >= 0)
&& tocol > vcol
#ifdef FEAT_VISUAL
&& VIsual_mode != Ctrl_V
#endif
&& (
# ifdef FEAT_RIGHTLEFT
wp->w_p_rl ? (col >= 0) :
# endif
(col < W_WIDTH(wp)))
&& !(noinvcur
&& (colnr_T)vcol == wp->w_virtcol)))
&& lcs_eol_one >= 0)
{
/* Display a '$' after the line or highlight an extra
* character if the line break is included. */
#if defined(FEAT_DIFF) || defined(LINE_ATTR)
/* For a diff line the highlighting continues after the
* "$". */
if (
# ifdef FEAT_DIFF
diff_hlf == (hlf_T)0
# ifdef LINE_ATTR
&&
# endif
# endif
# ifdef LINE_ATTR
line_attr == 0
# endif
)
#endif
{
#ifdef FEAT_VIRTUALEDIT
/* In virtualedit, visual selections may extend
* beyond end of line. */
if (area_highlighting && virtual_active()
&& tocol != MAXCOL && vcol < tocol)
n_extra = 0;
else
#endif
{
p_extra = at_end_str;
n_extra = 1;
c_extra = NUL;
}
}
if (wp->w_p_list)
c = lcs_eol;
else
c = ' ';
lcs_eol_one = -1;
--ptr; /* put it back at the NUL */
if (!attr_pri)
{
extra_attr = hl_attr(HLF_AT);
n_attr = 1;
}
#ifdef FEAT_MBYTE
mb_c = c;
if (enc_utf8 && (*mb_char2len)(c) > 1)
{
mb_utf8 = TRUE;
u8cc[0] = 0;
c = 0xc0;
}
else
mb_utf8 = FALSE; /* don't draw as UTF-8 */
#endif
}
else if (c != NUL)
{
p_extra = transchar(c);
#ifdef FEAT_RIGHTLEFT
if ((dy_flags & DY_UHEX) && wp->w_p_rl)
rl_mirror(p_extra); /* reverse "<12>" */
#endif
n_extra = byte2cells(c) - 1;
c_extra = NUL;
c = *p_extra++;
if (!attr_pri)
{
n_attr = n_extra + 1;
extra_attr = hl_attr(HLF_8);
saved_attr2 = char_attr; /* save current attr */
}
#ifdef FEAT_MBYTE
mb_utf8 = FALSE; /* don't draw as UTF-8 */
#endif
}
#ifdef FEAT_VIRTUALEDIT
else if (VIsual_active
&& (VIsual_mode == Ctrl_V
|| VIsual_mode == 'v')
&& virtual_active()
&& tocol != MAXCOL
&& vcol < tocol
&& (
# ifdef FEAT_RIGHTLEFT
wp->w_p_rl ? (col >= 0) :
# endif
(col < W_WIDTH(wp))))
{
c = ' ';
--ptr; /* put it back at the NUL */
}
#endif
#if defined(LINE_ATTR)
else if ((
# ifdef FEAT_DIFF
diff_hlf != (hlf_T)0 ||
# endif
line_attr != 0
) && (
# ifdef FEAT_RIGHTLEFT
wp->w_p_rl ? (col >= 0) :
# endif
(col < W_WIDTH(wp))))
{
/* Highlight until the right side of the window */
c = ' ';
--ptr; /* put it back at the NUL */
/* Remember we do the char for line highlighting. */
++did_line_attr;
/* don't do search HL for the rest of the line */
if (line_attr != 0 && char_attr == search_attr && col > 0)
char_attr = line_attr;
# ifdef FEAT_DIFF
if (diff_hlf == HLF_TXD)
{
diff_hlf = HLF_CHD;
if (attr == 0 || char_attr != attr)
char_attr = hl_attr(diff_hlf);
}
# endif
}
#endif
}
}
/* Don't override visual selection highlighting. */
if (n_attr > 0
&& draw_state == WL_LINE
&& !attr_pri)
char_attr = extra_attr;
#if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
/* XIM don't send preedit_start and preedit_end, but they send
* preedit_changed and commit. Thus Vim can't set "im_is_active", use
* im_is_preediting() here. */
if (xic != NULL
&& lnum == curwin->w_cursor.lnum
&& (State & INSERT)
&& !p_imdisable
&& im_is_preediting()
&& draw_state == WL_LINE)
{
colnr_T tcol;
if (preedit_end_col == MAXCOL)
getvcol(curwin, &(curwin->w_cursor), &tcol, NULL, NULL);
else
tcol = preedit_end_col;
if ((long)preedit_start_col <= vcol && vcol < (long)tcol)
{
if (feedback_old_attr < 0)
{
feedback_col = 0;
feedback_old_attr = char_attr;
}
char_attr = im_get_feedback_attr(feedback_col);
if (char_attr < 0)
char_attr = feedback_old_attr;
feedback_col++;
}
else if (feedback_old_attr >= 0)
{
char_attr = feedback_old_attr;
feedback_old_attr = -1;
feedback_col = 0;
}
}
#endif
/*
* Handle the case where we are in column 0 but not on the first
* character of the line and the user wants us to show us a
* special character (via 'listchars' option "precedes:<char>".
*/
if (lcs_prec_todo != NUL
&& (wp->w_p_wrap ? wp->w_skipcol > 0 : wp->w_leftcol > 0)
#ifdef FEAT_DIFF
&& filler_todo <= 0
#endif
&& draw_state > WL_NR
&& c != NUL)
{
c = lcs_prec;
lcs_prec_todo = NUL;
#ifdef FEAT_MBYTE
mb_c = c;
if (enc_utf8 && (*mb_char2len)(c) > 1)
{
mb_utf8 = TRUE;
u8cc[0] = 0;
c = 0xc0;
}
else
mb_utf8 = FALSE; /* don't draw as UTF-8 */
#endif
if (!attr_pri)
{
saved_attr3 = char_attr; /* save current attr */
char_attr = hl_attr(HLF_AT); /* later copied to char_attr */
n_attr3 = 1;
}
}
/*
* At end of the text line or just after the last character.
*/
if (c == NUL
#if defined(LINE_ATTR)
|| did_line_attr == 1
#endif
)
{
#ifdef FEAT_SEARCH_EXTRA
long prevcol = (long)(ptr - line) - (c == NUL);
#endif
/* invert at least one char, used for Visual and empty line or
* highlight match at end of line. If it's beyond the last
* char on the screen, just overwrite that one (tricky!) Not
* needed when a '$' was displayed for 'list'. */
if (lcs_eol == lcs_eol_one
&& ((area_attr != 0 && vcol == fromcol && c == NUL)
#ifdef FEAT_SEARCH_EXTRA
/* highlight 'hlsearch' match at end of line */
|| ((prevcol == (long)search_hl.startcol
|| prevcol == (long)match_hl[0].startcol
|| prevcol == (long)match_hl[1].startcol
|| prevcol == (long)match_hl[2].startcol)
# if defined(LINE_ATTR)
&& did_line_attr <= 1
# endif
)
#endif
))
{
int n = 0;
#ifdef FEAT_RIGHTLEFT
if (wp->w_p_rl)
{
if (col < 0)
n = 1;
}
else
#endif
{
if (col >= W_WIDTH(wp))
n = -1;
}
if (n != 0)
{
/* At the window boundary, highlight the last character
* instead (better than nothing). */
off += n;
col += n;
}
else
{
/* Add a blank character to highlight. */
ScreenLines[off] = ' ';
#ifdef FEAT_MBYTE
if (enc_utf8)
ScreenLinesUC[off] = 0;
#endif
}
#ifdef FEAT_SEARCH_EXTRA
if (area_attr == 0)
{
for (i = 0; i <= 3; ++i)
{
if (i == 3)
char_attr = search_hl.attr;
else if ((ptr - line) - 1 == (long)match_hl[i].startcol)
{
char_attr = match_hl[i].attr;
break;
}
}
}
#endif
ScreenAttrs[off] = char_attr;
#ifdef FEAT_RIGHTLEFT
if (wp->w_p_rl)
--col;
else
#endif
++col;
++vcol;
}
}
/*
* At end of the text line.
*/
if (c == NUL)
{
#ifdef FEAT_SYN_HL
/* Highlight 'cursorcolumn' past end of the line. */
if (wp->w_p_wrap)
v = wp->w_skipcol;
else
v = wp->w_leftcol;
/* check if line ends before left margin */
if (vcol < v + col - win_col_off(wp))
vcol = v + col - win_col_off(wp);
if (wp->w_p_cuc
&& (int)wp->w_virtcol >= vcol
&& (int)wp->w_virtcol < W_WIDTH(wp) * (row - startrow + 1)
+ v
&& lnum != wp->w_cursor.lnum
# ifdef FEAT_RIGHTLEFT
&& !wp->w_p_rl
# endif
)
{
while (col < W_WIDTH(wp))
{
ScreenLines[off] = ' ';
#ifdef FEAT_MBYTE
if (enc_utf8)
ScreenLinesUC[off] = 0;
#endif
++col;
if (vcol == (long)wp->w_virtcol)
{
ScreenAttrs[off] = hl_attr(HLF_CUC);
break;
}
ScreenAttrs[off++] = 0;
++vcol;
}
}
#endif
SCREEN_LINE(screen_row, W_WINCOL(wp), col, (int)W_WIDTH(wp),
wp->w_p_rl);
row++;
/*
* Update w_cline_height and w_cline_folded if the cursor line was
* updated (saves a call to plines() later).
*/
if (wp == curwin && lnum == curwin->w_cursor.lnum)
{
curwin->w_cline_row = startrow;
curwin->w_cline_height = row - startrow;
#ifdef FEAT_FOLDING
curwin->w_cline_folded = FALSE;
#endif
curwin->w_valid |= (VALID_CHEIGHT|VALID_CROW);
}
break;
}
/* line continues beyond line end */
if (lcs_ext
&& !wp->w_p_wrap
#ifdef FEAT_DIFF
&& filler_todo <= 0
#endif
&& (
#ifdef FEAT_RIGHTLEFT
wp->w_p_rl ? col == 0 :
#endif
col == W_WIDTH(wp) - 1)
&& (*ptr != NUL
|| (wp->w_p_list && lcs_eol != NUL && p_extra != at_end_str)
|| (n_extra && (c_extra != NUL || *p_extra != NUL))))
{
c = lcs_ext;
char_attr = hl_attr(HLF_AT);
#ifdef FEAT_MBYTE
mb_c = c;
if (enc_utf8 && (*mb_char2len)(c) > 1)
{
mb_utf8 = TRUE;
u8cc[0] = 0;
c = 0xc0;
}
else
mb_utf8 = FALSE;
#endif
}
#ifdef FEAT_SYN_HL
/* Highlight the cursor column if 'cursorcolumn' is set. But don't
* highlight the cursor position itself. */
if (wp->w_p_cuc && vcol == (long)wp->w_virtcol
&& lnum != wp->w_cursor.lnum
&& draw_state == WL_LINE)
{
vcol_save_attr = char_attr;
char_attr = hl_combine_attr(char_attr, hl_attr(HLF_CUC));
}
else
vcol_save_attr = -1;
#endif
/*
* Store character to be displayed.
* Skip characters that are left of the screen for 'nowrap'.
*/
vcol_prev = vcol;
if (draw_state < WL_LINE || n_skip <= 0)
{
/*
* Store the character.
*/
#if defined(FEAT_RIGHTLEFT) && defined(FEAT_MBYTE)
if (has_mbyte && wp->w_p_rl && (*mb_char2cells)(mb_c) > 1)
{
/* A double-wide character is: put first halve in left cell. */
--off;
--col;
}
#endif
ScreenLines[off] = c;
#ifdef FEAT_MBYTE
if (enc_dbcs == DBCS_JPNU)
ScreenLines2[off] = mb_c & 0xff;
else if (enc_utf8)
{
if (mb_utf8)
{
ScreenLinesUC[off] = mb_c;
if ((c & 0xff) == 0)
ScreenLines[off] = 0x80; /* avoid storing zero */
for (i = 0; i < Screen_mco; ++i)
{
ScreenLinesC[i][off] = u8cc[i];
if (u8cc[i] == 0)
break;
}
}
else
ScreenLinesUC[off] = 0;
}
if (multi_attr)
{
ScreenAttrs[off] = multi_attr;
multi_attr = 0;
}
else
#endif
ScreenAttrs[off] = char_attr;
#ifdef FEAT_MBYTE
if (has_mbyte && (*mb_char2cells)(mb_c) > 1)
{
/* Need to fill two screen columns. */
++off;
++col;
if (enc_utf8)
/* UTF-8: Put a 0 in the second screen char. */
ScreenLines[off] = 0;
else
/* DBCS: Put second byte in the second screen char. */
ScreenLines[off] = mb_c & 0xff;
++vcol;
/* When "tocol" is halfway a character, set it to the end of
* the character, otherwise highlighting won't stop. */
if (tocol == vcol)
++tocol;
#ifdef FEAT_RIGHTLEFT
if (wp->w_p_rl)
{
/* now it's time to backup one cell */
--off;
--col;
}
#endif
}
#endif
#ifdef FEAT_RIGHTLEFT
if (wp->w_p_rl)
{
--off;
--col;
}
else
#endif
{
++off;
++col;
}
}
else
--n_skip;
/* Only advance the "vcol" when after the 'number' column. */
if (draw_state >= WL_SBR
#ifdef FEAT_DIFF
&& filler_todo <= 0
#endif
)
++vcol;
#ifdef FEAT_SYN_HL
if (vcol_save_attr >= 0)
char_attr = vcol_save_attr;
#endif
/* restore attributes after "predeces" in 'listchars' */
if (draw_state > WL_NR && n_attr3 > 0 && --n_attr3 == 0)
char_attr = saved_attr3;
/* restore attributes after last 'listchars' or 'number' char */
if (n_attr > 0 && draw_state == WL_LINE && --n_attr == 0)
char_attr = saved_attr2;
/*
* At end of screen line and there is more to come: Display the line
* so far. If there is no more to display it is catched above.
*/
if ((
#ifdef FEAT_RIGHTLEFT
wp->w_p_rl ? (col < 0) :
#endif
(col >= W_WIDTH(wp)))
&& (*ptr != NUL
#ifdef FEAT_DIFF
|| filler_todo > 0
#endif
|| (wp->w_p_list && lcs_eol != NUL && p_extra != at_end_str)
|| (n_extra != 0 && (c_extra != NUL || *p_extra != NUL)))
)
{
SCREEN_LINE(screen_row, W_WINCOL(wp), col, (int)W_WIDTH(wp),
wp->w_p_rl);
++row;
++screen_row;
/* When not wrapping and finished diff lines, or when displayed
* '$' and highlighting until last column, break here. */
if ((!wp->w_p_wrap
#ifdef FEAT_DIFF
&& filler_todo <= 0
#endif
) || lcs_eol_one == -1)
break;
/* When the window is too narrow draw all "@" lines. */
if (draw_state != WL_LINE
#ifdef FEAT_DIFF
&& filler_todo <= 0
#endif
)
{
win_draw_end(wp, '@', ' ', row, wp->w_height, HLF_AT);
#ifdef FEAT_VERTSPLIT
draw_vsep_win(wp, row);
#endif
row = endrow;
}
/* When line got too long for screen break here. */
if (row == endrow)
{
++row;
break;
}
if (screen_cur_row == screen_row - 1
#ifdef FEAT_DIFF
&& filler_todo <= 0
#endif
&& W_WIDTH(wp) == Columns)
{
/* Remember that the line wraps, used for modeless copy. */
LineWraps[screen_row - 1] = TRUE;
/*
* Special trick to make copy/paste of wrapped lines work with
* xterm/screen: write an extra character beyond the end of
* the line. This will work with all terminal types
* (regardless of the xn,am settings).
* Only do this on a fast tty.
* Only do this if the cursor is on the current line
* (something has been written in it).
* Don't do this for the GUI.
* Don't do this for double-width characters.
* Don't do this for a window not at the right screen border.
*/
if (p_tf
#ifdef FEAT_GUI
&& !gui.in_use
#endif
#ifdef FEAT_MBYTE
&& !(has_mbyte
&& ((*mb_off2cells)(LineOffset[screen_row]) == 2
|| (*mb_off2cells)(LineOffset[screen_row - 1]
+ (int)Columns - 2) == 2))
#endif
)
{
/* First make sure we are at the end of the screen line,
* then output the same character again to let the
* terminal know about the wrap. If the terminal doesn't
* auto-wrap, we overwrite the character. */
if (screen_cur_col != W_WIDTH(wp))
screen_char(LineOffset[screen_row - 1]
+ (unsigned)Columns - 1,
screen_row - 1, (int)(Columns - 1));
#ifdef FEAT_MBYTE
/* When there is a multi-byte character, just output a
* space to keep it simple. */
if (has_mbyte && MB_BYTE2LEN(ScreenLines[LineOffset[
screen_row - 1] + (Columns - 1)]) > 1)
out_char(' ');
else
#endif
out_char(ScreenLines[LineOffset[screen_row - 1]
+ (Columns - 1)]);
/* force a redraw of the first char on the next line */
ScreenAttrs[LineOffset[screen_row]] = (sattr_T)-1;
screen_start(); /* don't know where cursor is now */
}
}
col = 0;
off = (unsigned)(current_ScreenLine - ScreenLines);
#ifdef FEAT_RIGHTLEFT
if (wp->w_p_rl)
{
col = W_WIDTH(wp) - 1; /* col is not used if breaking! */
off += col;
}
#endif
/* reset the drawing state for the start of a wrapped line */
draw_state = WL_START;
saved_n_extra = n_extra;
saved_p_extra = p_extra;
saved_c_extra = c_extra;
saved_char_attr = char_attr;
n_extra = 0;
lcs_prec_todo = lcs_prec;
#ifdef FEAT_LINEBREAK
# ifdef FEAT_DIFF
if (filler_todo <= 0)
# endif
need_showbreak = TRUE;
#endif
#ifdef FEAT_DIFF
--filler_todo;
/* When the filler lines are actually below the last line of the
* file, don't draw the line itself, break here. */
if (filler_todo == 0 && wp->w_botfill)
break;
#endif
}
} /* for every character in the line */
#ifdef FEAT_SPELL
/* After an empty line check first word for capital. */
if (*skipwhite(line) == NUL)
{
capcol_lnum = lnum + 1;
cap_col = 0;
}
#endif
return row;
}
#ifdef FEAT_MBYTE
static int comp_char_differs __ARGS((int, int));
/*
* Return if the composing characters at "off_from" and "off_to" differ.
*/
static int
comp_char_differs(off_from, off_to)
int off_from;
int off_to;
{
int i;
for (i = 0; i < Screen_mco; ++i)
{
if (ScreenLinesC[i][off_from] != ScreenLinesC[i][off_to])
return TRUE;
if (ScreenLinesC[i][off_from] == 0)
break;
}
return FALSE;
}
#endif
/*
* Check whether the given character needs redrawing:
* - the (first byte of the) character is different
* - the attributes are different
* - the character is multi-byte and the next byte is different
*/
static int
char_needs_redraw(off_from, off_to, cols)
int off_from;
int off_to;
int cols;
{
if (cols > 0
&& ((ScreenLines[off_from] != ScreenLines[off_to]
|| ScreenAttrs[off_from] != ScreenAttrs[off_to])
#ifdef FEAT_MBYTE
|| (enc_dbcs != 0
&& MB_BYTE2LEN(ScreenLines[off_from]) > 1
&& (enc_dbcs == DBCS_JPNU && ScreenLines[off_from] == 0x8e
? ScreenLines2[off_from] != ScreenLines2[off_to]
: (cols > 1 && ScreenLines[off_from + 1]
!= ScreenLines[off_to + 1])))
|| (enc_utf8
&& (ScreenLinesUC[off_from] != ScreenLinesUC[off_to]
|| (ScreenLinesUC[off_from] != 0
&& comp_char_differs(off_from, off_to))))
#endif
))
return TRUE;
return FALSE;
}
/*
* Move one "cooked" screen line to the screen, but only the characters that
* have actually changed. Handle insert/delete character.
* "coloff" gives the first column on the screen for this line.
* "endcol" gives the columns where valid characters are.
* "clear_width" is the width of the window. It's > 0 if the rest of the line
* needs to be cleared, negative otherwise.
* "rlflag" is TRUE in a rightleft window:
* When TRUE and "clear_width" > 0, clear columns 0 to "endcol"
* When FALSE and "clear_width" > 0, clear columns "endcol" to "clear_width"
*/
static void
screen_line(row, coloff, endcol, clear_width
#ifdef FEAT_RIGHTLEFT
, rlflag
#endif
)
int row;
int coloff;
int endcol;
int clear_width;
#ifdef FEAT_RIGHTLEFT
int rlflag;
#endif
{
unsigned off_from;
unsigned off_to;
int col = 0;
#if defined(FEAT_GUI) || defined(UNIX) || defined(FEAT_VERTSPLIT)
int hl;
#endif
int force = FALSE; /* force update rest of the line */
int redraw_this /* bool: does character need redraw? */
#ifdef FEAT_GUI
= TRUE /* For GUI when while-loop empty */
#endif
;
int redraw_next; /* redraw_this for next character */
#ifdef FEAT_MBYTE
int clear_next = FALSE;
int char_cells; /* 1: normal char */
/* 2: occupies two display cells */
# define CHAR_CELLS char_cells
#else
# define CHAR_CELLS 1
#endif
# ifdef FEAT_CLIPBOARD
clip_may_clear_selection(row, row);
# endif
off_from = (unsigned)(current_ScreenLine - ScreenLines);
off_to = LineOffset[row] + coloff;
#ifdef FEAT_RIGHTLEFT
if (rlflag)
{
/* Clear rest first, because it's left of the text. */
if (clear_width > 0)
{
while (col <= endcol && ScreenLines[off_to] == ' '
&& ScreenAttrs[off_to] == 0
# ifdef FEAT_MBYTE
&& (!enc_utf8 || ScreenLinesUC[off_to] == 0)
# endif
)
{
++off_to;
++col;
}
if (col <= endcol)
screen_fill(row, row + 1, col + coloff,
endcol + coloff + 1, ' ', ' ', 0);
}
col = endcol + 1;
off_to = LineOffset[row] + col + coloff;
off_from += col;
endcol = (clear_width > 0 ? clear_width : -clear_width);
}
#endif /* FEAT_RIGHTLEFT */
redraw_next = char_needs_redraw(off_from, off_to, endcol - col);
while (col < endcol)
{
#ifdef FEAT_MBYTE
if (has_mbyte && (col + 1 < endcol))
char_cells = (*mb_off2cells)(off_from);
else
char_cells = 1;
#endif
redraw_this = redraw_next;
redraw_next = force || char_needs_redraw(off_from + CHAR_CELLS,
off_to + CHAR_CELLS, endcol - col - CHAR_CELLS);
#ifdef FEAT_GUI
/* If the next character was bold, then redraw the current character to
* remove any pixels that might have spilt over into us. This only
* happens in the GUI.
*/
if (redraw_next && gui.in_use)
{
hl = ScreenAttrs[off_to + CHAR_CELLS];
if (hl > HL_ALL)
hl = syn_attr2attr(hl);
if (hl & HL_BOLD)
redraw_this = TRUE;
}
#endif
if (redraw_this)
{
/*
* Special handling when 'xs' termcap flag set (hpterm):
* Attributes for characters are stored at the position where the
* cursor is when writing the highlighting code. The
* start-highlighting code must be written with the cursor on the
* first highlighted character. The stop-highlighting code must
* be written with the cursor just after the last highlighted
* character.
* Overwriting a character doesn't remove it's highlighting. Need
* to clear the rest of the line, and force redrawing it
* completely.
*/
if ( p_wiv
&& !force
#ifdef FEAT_GUI
&& !gui.in_use
#endif
&& ScreenAttrs[off_to] != 0
&& ScreenAttrs[off_from] != ScreenAttrs[off_to])
{
/*
* Need to remove highlighting attributes here.
*/
windgoto(row, col + coloff);
out_str(T_CE); /* clear rest of this screen line */
screen_start(); /* don't know where cursor is now */
force = TRUE; /* force redraw of rest of the line */
redraw_next = TRUE; /* or else next char would miss out */
/*
* If the previous character was highlighted, need to stop
* highlighting at this character.
*/
if (col + coloff > 0 && ScreenAttrs[off_to - 1] != 0)
{
screen_attr = ScreenAttrs[off_to - 1];
term_windgoto(row, col + coloff);
screen_stop_highlight();
}
else
screen_attr = 0; /* highlighting has stopped */
}
#ifdef FEAT_MBYTE
if (enc_dbcs != 0)
{
/* Check if overwriting a double-byte with a single-byte or
* the other way around requires another character to be
* redrawn. For UTF-8 this isn't needed, because comparing
* ScreenLinesUC[] is sufficient. */
if (char_cells == 1
&& col + 1 < endcol
&& (*mb_off2cells)(off_to) > 1)
{
/* Writing a single-cell character over a double-cell
* character: need to redraw the next cell. */
ScreenLines[off_to + 1] = 0;
redraw_next = TRUE;
}
else if (char_cells == 2
&& col + 2 < endcol
&& (*mb_off2cells)(off_to) == 1
&& (*mb_off2cells)(off_to + 1) > 1)
{
/* Writing the second half of a double-cell character over
* a double-cell character: need to redraw the second
* cell. */
ScreenLines[off_to + 2] = 0;
redraw_next = TRUE;
}
if (enc_dbcs == DBCS_JPNU)
ScreenLines2[off_to] = ScreenLines2[off_from];
}
/* When writing a single-width character over a double-width
* character and at the end of the redrawn text, need to clear out
* the right halve of the old character.
* Also required when writing the right halve of a double-width
* char over the left halve of an existing one. */
if (has_mbyte && col + char_cells == endcol
&& ((char_cells == 1
&& (*mb_off2cells)(off_to) > 1)
|| (char_cells == 2
&& (*mb_off2cells)(off_to) == 1
&& (*mb_off2cells)(off_to + 1) > 1)))
clear_next = TRUE;
#endif
ScreenLines[off_to] = ScreenLines[off_from];
#ifdef FEAT_MBYTE
if (enc_utf8)
{
ScreenLinesUC[off_to] = ScreenLinesUC[off_from];
if (ScreenLinesUC[off_from] != 0)
{
int i;
for (i = 0; i < Screen_mco; ++i)
ScreenLinesC[i][off_to] = ScreenLinesC[i][off_from];
}
}
if (char_cells == 2)
ScreenLines[off_to + 1] = ScreenLines[off_from + 1];
#endif
#if defined(FEAT_GUI) || defined(UNIX)
/* The bold trick makes a single row of pixels appear in the next
* character. When a bold character is removed, the next
* character should be redrawn too. This happens for our own GUI
* and for some xterms. */
if (
# ifdef FEAT_GUI
gui.in_use
# endif
# if defined(FEAT_GUI) && defined(UNIX)
||
# endif
# ifdef UNIX
term_is_xterm
# endif
)
{
hl = ScreenAttrs[off_to];
if (hl > HL_ALL)
hl = syn_attr2attr(hl);
if (hl & HL_BOLD)
redraw_next = TRUE;
}
#endif
ScreenAttrs[off_to] = ScreenAttrs[off_from];
#ifdef FEAT_MBYTE
/* For simplicity set the attributes of second half of a
* double-wide character equal to the first half. */
if (char_cells == 2)
ScreenAttrs[off_to + 1] = ScreenAttrs[off_from];
if (enc_dbcs != 0 && char_cells == 2)
screen_char_2(off_to, row, col + coloff);
else
#endif
screen_char(off_to, row, col + coloff);
}
else if ( p_wiv
#ifdef FEAT_GUI
&& !gui.in_use
#endif
&& col + coloff > 0)
{
if (ScreenAttrs[off_to] == ScreenAttrs[off_to - 1])
{
/*
* Don't output stop-highlight when moving the cursor, it will
* stop the highlighting when it should continue.
*/
screen_attr = 0;
}
else if (screen_attr != 0)
screen_stop_highlight();
}
off_to += CHAR_CELLS;
off_from += CHAR_CELLS;
col += CHAR_CELLS;
}
#ifdef FEAT_MBYTE
if (clear_next)
{
/* Clear the second half of a double-wide character of which the left
* half was overwritten with a single-wide character. */
ScreenLines[off_to] = ' ';
if (enc_utf8)
ScreenLinesUC[off_to] = 0;
screen_char(off_to, row, col + coloff);
}
#endif
if (clear_width > 0
#ifdef FEAT_RIGHTLEFT
&& !rlflag
#endif
)
{
#ifdef FEAT_GUI
int startCol = col;
#endif
/* blank out the rest of the line */
while (col < clear_width && ScreenLines[off_to] == ' '
&& ScreenAttrs[off_to] == 0
#ifdef FEAT_MBYTE
&& (!enc_utf8 || ScreenLinesUC[off_to] == 0)
#endif
)
{
++off_to;
++col;
}
if (col < clear_width)
{
#ifdef FEAT_GUI
/*
* In the GUI, clearing the rest of the line may leave pixels
* behind if the first character cleared was bold. Some bold
* fonts spill over the left. In this case we redraw the previous
* character too. If we didn't skip any blanks above, then we
* only redraw if the character wasn't already redrawn anyway.
*/
if (gui.in_use && (col > startCol || !redraw_this))
{
hl = ScreenAttrs[off_to];
if (hl > HL_ALL || (hl & HL_BOLD))
{
int prev_cells = 1;
# ifdef FEAT_MBYTE
if (enc_utf8)
/* for utf-8, ScreenLines[char_offset + 1] == 0 means
* that its width is 2. */
prev_cells = ScreenLines[off_to - 1] == 0 ? 2 : 1;
else if (enc_dbcs != 0)
{
/* find previous character by counting from first
* column and get its width. */
unsigned off = LineOffset[row];
while (off < off_to)
{
prev_cells = (*mb_off2cells)(off);
off += prev_cells;
}
}
if (enc_dbcs != 0 && prev_cells > 1)
screen_char_2(off_to - prev_cells, row,
col + coloff - prev_cells);
else
# endif
screen_char(off_to - prev_cells, row,
col + coloff - prev_cells);
}
}
#endif
screen_fill(row, row + 1, col + coloff, clear_width + coloff,
' ', ' ', 0);
#ifdef FEAT_VERTSPLIT
off_to += clear_width - col;
col = clear_width;
#endif
}
}
if (clear_width > 0)
{
#ifdef FEAT_VERTSPLIT
/* For a window that's left of another, draw the separator char. */
if (col + coloff < Columns)
{
int c;
c = fillchar_vsep(&hl);
if (ScreenLines[off_to] != c
# ifdef FEAT_MBYTE
|| (enc_utf8 && (int)ScreenLinesUC[off_to]
!= (c >= 0x80 ? c : 0))
# endif
|| ScreenAttrs[off_to] != hl)
{
ScreenLines[off_to] = c;
ScreenAttrs[off_to] = hl;
# ifdef FEAT_MBYTE
if (enc_utf8)
{
if (c >= 0x80)
{
ScreenLinesUC[off_to] = c;
ScreenLinesC[0][off_to] = 0;
}
else
ScreenLinesUC[off_to] = 0;
}
# endif
screen_char(off_to, row, col + coloff);
}
}
else
#endif
LineWraps[row] = FALSE;
}
}
#if defined(FEAT_RIGHTLEFT) || defined(PROTO)
/*
* Mirror text "str" for right-left displaying.
* Only works for single-byte characters (e.g., numbers).
*/
void
rl_mirror(str)
char_u *str;
{
char_u *p1, *p2;
int t;
for (p1 = str, p2 = str + STRLEN(str) - 1; p1 < p2; ++p1, --p2)
{
t = *p1;
*p1 = *p2;
*p2 = t;
}
}
#endif
#if defined(FEAT_WINDOWS) || defined(PROTO)
/*
* mark all status lines for redraw; used after first :cd
*/
void
status_redraw_all()
{
win_T *wp;
for (wp = firstwin; wp; wp = wp->w_next)
if (wp->w_status_height)
{
wp->w_redr_status = TRUE;
redraw_later(VALID);
}
}
/*
* mark all status lines of the current buffer for redraw
*/
void
status_redraw_curbuf()
{
win_T *wp;
for (wp = firstwin; wp; wp = wp->w_next)
if (wp->w_status_height != 0 && wp->w_buffer == curbuf)
{
wp->w_redr_status = TRUE;
redraw_later(VALID);
}
}
/*
* Redraw all status lines that need to be redrawn.
*/
void
redraw_statuslines()
{
win_T *wp;
for (wp = firstwin; wp; wp = wp->w_next)
if (wp->w_redr_status)
win_redr_status(wp);
if (redraw_tabline)
draw_tabline();
}
#endif
#if (defined(FEAT_WILDMENU) && defined(FEAT_VERTSPLIT)) || defined(PROTO)
/*
* Redraw all status lines at the bottom of frame "frp".
*/
void
win_redraw_last_status(frp)
frame_T *frp;
{
if (frp->fr_layout == FR_LEAF)
frp->fr_win->w_redr_status = TRUE;
else if (frp->fr_layout == FR_ROW)
{
for (frp = frp->fr_child; frp != NULL; frp = frp->fr_next)
win_redraw_last_status(frp);
}
else /* frp->fr_layout == FR_COL */
{
frp = frp->fr_child;
while (frp->fr_next != NULL)
frp = frp->fr_next;
win_redraw_last_status(frp);
}
}
#endif
#ifdef FEAT_VERTSPLIT
/*
* Draw the verticap separator right of window "wp" starting with line "row".
*/
static void
draw_vsep_win(wp, row)
win_T *wp;
int row;
{
int hl;
int c;
if (wp->w_vsep_width)
{
/* draw the vertical separator right of this window */
c = fillchar_vsep(&hl);
screen_fill(W_WINROW(wp) + row, W_WINROW(wp) + wp->w_height,
W_ENDCOL(wp), W_ENDCOL(wp) + 1,
c, ' ', hl);
}
}
#endif
#ifdef FEAT_WILDMENU
static int status_match_len __ARGS((expand_T *xp, char_u *s));
static int skip_status_match_char __ARGS((expand_T *xp, char_u *s));
/*
* Get the lenght of an item as it will be shown in the status line.
*/
static int
status_match_len(xp, s)
expand_T *xp;
char_u *s;
{
int len = 0;
#ifdef FEAT_MENU
int emenu = (xp->xp_context == EXPAND_MENUS
|| xp->xp_context == EXPAND_MENUNAMES);
/* Check for menu separators - replace with '|'. */
if (emenu && menu_is_separator(s))
return 1;
#endif
while (*s != NUL)
{
if (skip_status_match_char(xp, s))
++s;
len += ptr2cells(s);
mb_ptr_adv(s);
}
return len;
}
/*
* Return TRUE for characters that are not displayed in a status match.
* These are backslashes used for escaping. Do show backslashes in help tags.
*/
static int
skip_status_match_char(xp, s)
expand_T *xp;
char_u *s;
{
return ((rem_backslash(s) && xp->xp_context != EXPAND_HELP)
#ifdef FEAT_MENU
|| ((xp->xp_context == EXPAND_MENUS
|| xp->xp_context == EXPAND_MENUNAMES)
&& (s[0] == '\t' || (s[0] == '\\' && s[1] != NUL)))
#endif
);
}
/*
* Show wildchar matches in the status line.
* Show at least the "match" item.
* We start at item 'first_match' in the list and show all matches that fit.
*
* If inversion is possible we use it. Else '=' characters are used.
*/
void
win_redr_status_matches(xp, num_matches, matches, match, showtail)
expand_T *xp;
int num_matches;
char_u **matches; /* list of matches */
int match;
int showtail;
{
#define L_MATCH(m) (showtail ? sm_gettail(matches[m]) : matches[m])
int row;
char_u *buf;
int len;
int clen; /* lenght in screen cells */
int fillchar;
int attr;
int i;
int highlight = TRUE;
char_u *selstart = NULL;
int selstart_col = 0;
char_u *selend = NULL;
static int first_match = 0;
int add_left = FALSE;
char_u *s;
#ifdef FEAT_MENU
int emenu;
#endif
#if defined(FEAT_MBYTE) || defined(FEAT_MENU)
int l;
#endif
if (matches == NULL) /* interrupted completion? */
return;
#ifdef FEAT_MBYTE
if (has_mbyte)
buf = alloc((unsigned)Columns * MB_MAXBYTES + 1);
else
#endif
buf = alloc((unsigned)Columns + 1);
if (buf == NULL)
return;
if (match == -1) /* don't show match but original text */
{
match = 0;
highlight = FALSE;
}
/* count 1 for the ending ">" */
clen = status_match_len(xp, L_MATCH(match)) + 3;
if (match == 0)
first_match = 0;
else if (match < first_match)
{
/* jumping left, as far as we can go */
first_match = match;
add_left = TRUE;
}
else
{
/* check if match fits on the screen */
for (i = first_match; i < match; ++i)
clen += status_match_len(xp, L_MATCH(i)) + 2;
if (first_match > 0)
clen += 2;
/* jumping right, put match at the left */
if ((long)clen > Columns)
{
first_match = match;
/* if showing the last match, we can add some on the left */
clen = 2;
for (i = match; i < num_matches; ++i)
{
clen += status_match_len(xp, L_MATCH(i)) + 2;
if ((long)clen >= Columns)
break;
}
if (i == num_matches)
add_left = TRUE;
}
}
if (add_left)
while (first_match > 0)
{
clen += status_match_len(xp, L_MATCH(first_match - 1)) + 2;
if ((long)clen >= Columns)
break;
--first_match;
}
fillchar = fillchar_status(&attr, TRUE);
if (first_match == 0)
{
*buf = NUL;
len = 0;
}
else
{
STRCPY(buf, "< ");
len = 2;
}
clen = len;
i = first_match;
while ((long)(clen + status_match_len(xp, L_MATCH(i)) + 2) < Columns)
{
if (i == match)
{
selstart = buf + len;
selstart_col = clen;
}
s = L_MATCH(i);
/* Check for menu separators - replace with '|' */
#ifdef FEAT_MENU
emenu = (xp->xp_context == EXPAND_MENUS
|| xp->xp_context == EXPAND_MENUNAMES);
if (emenu && menu_is_separator(s))
{
STRCPY(buf + len, transchar('|'));
l = (int)STRLEN(buf + len);
len += l;
clen += l;
}
else
#endif
for ( ; *s != NUL; ++s)
{
if (skip_status_match_char(xp, s))
++s;
clen += ptr2cells(s);
#ifdef FEAT_MBYTE
if (has_mbyte && (l = (*mb_ptr2len)(s)) > 1)
{
STRNCPY(buf + len, s, l);
s += l - 1;
len += l;
}
else
#endif
{
STRCPY(buf + len, transchar_byte(*s));
len += (int)STRLEN(buf + len);
}
}
if (i == match)
selend = buf + len;
*(buf + len++) = ' ';
*(buf + len++) = ' ';
clen += 2;
if (++i == num_matches)
break;
}
if (i != num_matches)
{
*(buf + len++) = '>';
++clen;
}
buf[len] = NUL;
row = cmdline_row - 1;
if (row >= 0)
{
if (wild_menu_showing == 0)
{
if (msg_scrolled > 0)
{
/* Put the wildmenu just above the command line. If there is
* no room, scroll the screen one line up. */
if (cmdline_row == Rows - 1)
{
screen_del_lines(0, 0, 1, (int)Rows, TRUE, NULL);
++msg_scrolled;
}
else
{
++cmdline_row;
++row;
}
wild_menu_showing = WM_SCROLLED;
}
else
{
/* Create status line if needed by setting 'laststatus' to 2.
* Set 'winminheight' to zero to avoid that the window is
* resized. */
if (lastwin->w_status_height == 0)
{
save_p_ls = p_ls;
save_p_wmh = p_wmh;
p_ls = 2;
p_wmh = 0;
last_status(FALSE);
}
wild_menu_showing = WM_SHOWN;
}
}
screen_puts(buf, row, 0, attr);
if (selstart != NULL && highlight)
{
*selend = NUL;
screen_puts(selstart, row, selstart_col, hl_attr(HLF_WM));
}
screen_fill(row, row + 1, clen, (int)Columns, fillchar, fillchar, attr);
}
#ifdef FEAT_VERTSPLIT
win_redraw_last_status(topframe);
#else
lastwin->w_redr_status = TRUE;
#endif
vim_free(buf);
}
#endif
#if defined(FEAT_WINDOWS) || defined(PROTO)
/*
* Redraw the status line of window wp.
*
* If inversion is possible we use it. Else '=' characters are used.
*/
void
win_redr_status(wp)
win_T *wp;
{
int row;
char_u *p;
int len;
int fillchar;
int attr;
int this_ru_col;
wp->w_redr_status = FALSE;
if (wp->w_status_height == 0)
{
/* no status line, can only be last window */
redraw_cmdline = TRUE;
}
else if (!redrawing()
#ifdef FEAT_INS_EXPAND
/* don't update status line when popup menu is visible and may be
* drawn over it */
|| pum_visible()
#endif
)
{
/* Don't redraw right now, do it later. */
wp->w_redr_status = TRUE;
}
#ifdef FEAT_STL_OPT
else if (*p_stl != NUL || *wp->w_p_stl != NUL)
{
/* redraw custom status line */
redraw_custum_statusline(wp);
}
#endif
else
{
fillchar = fillchar_status(&attr, wp == curwin);
get_trans_bufname(wp->w_buffer);
p = NameBuff;
len = (int)STRLEN(p);
if (wp->w_buffer->b_help
#ifdef FEAT_QUICKFIX
|| wp->w_p_pvw
#endif
|| bufIsChanged(wp->w_buffer)
|| wp->w_buffer->b_p_ro)
*(p + len++) = ' ';
if (wp->w_buffer->b_help)
{
STRCPY(p + len, _("[Help]"));
len += (int)STRLEN(p + len);
}
#ifdef FEAT_QUICKFIX
if (wp->w_p_pvw)
{
STRCPY(p + len, _("[Preview]"));
len += (int)STRLEN(p + len);
}
#endif
if (bufIsChanged(wp->w_buffer))
{
STRCPY(p + len, "[+]");
len += 3;
}
if (wp->w_buffer->b_p_ro)
{
STRCPY(p + len, "[RO]");
len += 4;
}
#ifndef FEAT_VERTSPLIT
this_ru_col = ru_col;
if (this_ru_col < (Columns + 1) / 2)
this_ru_col = (Columns + 1) / 2;
#else
this_ru_col = ru_col - (Columns - W_WIDTH(wp));
if (this_ru_col < (W_WIDTH(wp) + 1) / 2)
this_ru_col = (W_WIDTH(wp) + 1) / 2;
if (this_ru_col <= 1)
{
p = (char_u *)"<"; /* No room for file name! */
len = 1;
}
else
#endif
#ifdef FEAT_MBYTE
if (has_mbyte)
{
int clen = 0, i;
/* Count total number of display cells. */
for (i = 0; p[i] != NUL; i += (*mb_ptr2len)(p + i))
clen += (*mb_ptr2cells)(p + i);
/* Find first character that will fit.
* Going from start to end is much faster for DBCS. */
for (i = 0; p[i] != NUL && clen >= this_ru_col - 1;
i += (*mb_ptr2len)(p + i))
clen -= (*mb_ptr2cells)(p + i);
len = clen;
if (i > 0)
{
p = p + i - 1;
*p = '<';
++len;
}
}
else
#endif
if (len > this_ru_col - 1)
{
p += len - (this_ru_col - 1);
*p = '<';
len = this_ru_col - 1;
}
row = W_WINROW(wp) + wp->w_height;
screen_puts(p, row, W_WINCOL(wp), attr);
screen_fill(row, row + 1, len + W_WINCOL(wp),
this_ru_col + W_WINCOL(wp), fillchar, fillchar, attr);
if (get_keymap_str(wp, NameBuff, MAXPATHL)
&& (int)(this_ru_col - len) > (int)(STRLEN(NameBuff) + 1))
screen_puts(NameBuff, row, (int)(this_ru_col - STRLEN(NameBuff)
- 1 + W_WINCOL(wp)), attr);
#ifdef FEAT_CMDL_INFO
win_redr_ruler(wp, TRUE);
#endif
}
#ifdef FEAT_VERTSPLIT
/*
* May need to draw the character below the vertical separator.
*/
if (wp->w_vsep_width != 0 && wp->w_status_height != 0 && redrawing())
{
if (stl_connected(wp))
fillchar = fillchar_status(&attr, wp == curwin);
else
fillchar = fillchar_vsep(&attr);
screen_putchar(fillchar, W_WINROW(wp) + wp->w_height, W_ENDCOL(wp),
attr);
}
#endif
}
#ifdef FEAT_STL_OPT
/*
* Redraw the status line according to 'statusline' and take care of any
* errors encountered.
*/
static void
redraw_custum_statusline(wp)
win_T *wp;
{
int save_called_emsg = called_emsg;
called_emsg = FALSE;
win_redr_custom(wp, FALSE);
if (called_emsg)
set_string_option_direct((char_u *)"statusline", -1,
(char_u *)"", OPT_FREE | (*wp->w_p_stl != NUL
? OPT_LOCAL : OPT_GLOBAL), SID_ERROR);
called_emsg |= save_called_emsg;
}
#endif
# ifdef FEAT_VERTSPLIT
/*
* Return TRUE if the status line of window "wp" is connected to the status
* line of the window right of it. If not, then it's a vertical separator.
* Only call if (wp->w_vsep_width != 0).
*/
int
stl_connected(wp)
win_T *wp;
{
frame_T *fr;
fr = wp->w_frame;
while (fr->fr_parent != NULL)
{
if (fr->fr_parent->fr_layout == FR_COL)
{
if (fr->fr_next != NULL)
break;
}
else
{
if (fr->fr_next != NULL)
return TRUE;
}
fr = fr->fr_parent;
}
return FALSE;
}
# endif
#endif /* FEAT_WINDOWS */
#if defined(FEAT_WINDOWS) || defined(FEAT_STL_OPT) || defined(PROTO)
/*
* Get the value to show for the language mappings, active 'keymap'.
*/
int
get_keymap_str(wp, buf, len)
win_T *wp;
char_u *buf; /* buffer for the result */
int len; /* length of buffer */
{
char_u *p;
if (wp->w_buffer->b_p_iminsert != B_IMODE_LMAP)
return FALSE;
{
#ifdef FEAT_EVAL
buf_T *old_curbuf = curbuf;
win_T *old_curwin = curwin;
char_u *s;
curbuf = wp->w_buffer;
curwin = wp;
STRCPY(buf, "b:keymap_name"); /* must be writable */
++emsg_skip;
s = p = eval_to_string(buf, NULL, FALSE);
--emsg_skip;
curbuf = old_curbuf;
curwin = old_curwin;
if (p == NULL || *p == NUL)
#endif
{
#ifdef FEAT_KEYMAP
if (wp->w_buffer->b_kmap_state & KEYMAP_LOADED)
p = wp->w_buffer->b_p_keymap;
else
#endif
p = (char_u *)"lang";
}
if ((int)(STRLEN(p) + 3) < len)
sprintf((char *)buf, "<%s>", p);
else
buf[0] = NUL;
#ifdef FEAT_EVAL
vim_free(s);
#endif
}
return buf[0] != NUL;
}
#endif
#if defined(FEAT_STL_OPT) || defined(PROTO)
/*
* Redraw the status line or ruler of window "wp".
* When "wp" is NULL redraw the tab pages line from 'tabline'.
*/
static void
win_redr_custom(wp, draw_ruler)
win_T *wp;
int draw_ruler; /* TRUE or FALSE */
{
int attr;
int curattr;
int row;
int col = 0;
int maxwidth;
int width;
int n;
int len;
int fillchar;
char_u buf[MAXPATHL];
char_u *p;
struct stl_hlrec hltab[STL_MAX_ITEM];
struct stl_hlrec tabtab[STL_MAX_ITEM];
int use_sandbox = FALSE;
/* setup environment for the task at hand */
if (wp == NULL)
{
/* Use 'tabline'. Always at the first line of the screen. */
p = p_tal;
row = 0;
fillchar = ' ';
attr = hl_attr(HLF_TPF);
maxwidth = Columns;
# ifdef FEAT_EVAL
use_sandbox = was_set_insecurely((char_u *)"tabline", 0);
# endif
}
else
{
row = W_WINROW(wp) + wp->w_height;
fillchar = fillchar_status(&attr, wp == curwin);
maxwidth = W_WIDTH(wp);
if (draw_ruler)
{
p = p_ruf;
/* advance past any leading group spec - implicit in ru_col */
if (*p == '%')
{
if (*++p == '-')
p++;
if (atoi((char *) p))
while (VIM_ISDIGIT(*p))
p++;
if (*p++ != '(')
p = p_ruf;
}
#ifdef FEAT_VERTSPLIT
col = ru_col - (Columns - W_WIDTH(wp));
if (col < (W_WIDTH(wp) + 1) / 2)
col = (W_WIDTH(wp) + 1) / 2;
#else
col = ru_col;
if (col > (Columns + 1) / 2)
col = (Columns + 1) / 2;
#endif
maxwidth = W_WIDTH(wp) - col;
#ifdef FEAT_WINDOWS
if (!wp->w_status_height)
#endif
{
row = Rows - 1;
--maxwidth; /* writing in last column may cause scrolling */
fillchar = ' ';
attr = 0;
}
# ifdef FEAT_EVAL
use_sandbox = was_set_insecurely((char_u *)"rulerformat", 0);
# endif
}
else
{
if (*wp->w_p_stl != NUL)
p = wp->w_p_stl;
else
p = p_stl;
# ifdef FEAT_EVAL
use_sandbox = was_set_insecurely((char_u *)"statusline",
*wp->w_p_stl == NUL ? 0 : OPT_LOCAL);
# endif
}
#ifdef FEAT_VERTSPLIT
col += W_WINCOL(wp);
#endif
}
if (maxwidth <= 0)
return;
width = build_stl_str_hl(wp == NULL ? curwin : wp,
buf, sizeof(buf),
p, use_sandbox,
fillchar, maxwidth, hltab, tabtab);
len = (int)STRLEN(buf);
while (width < maxwidth && len < sizeof(buf) - 1)
{
#ifdef FEAT_MBYTE
len += (*mb_char2bytes)(fillchar, buf + len);
#else
buf[len++] = fillchar;
#endif
++width;
}
buf[len] = NUL;
/*
* Draw each snippet with the specified highlighting.
*/
curattr = attr;
p = buf;
for (n = 0; hltab[n].start != NULL; n++)
{
len = (int)(hltab[n].start - p);
screen_puts_len(p, len, row, col, curattr);
col += vim_strnsize(p, len);
p = hltab[n].start;
if (hltab[n].userhl == 0)
curattr = attr;
else if (hltab[n].userhl < 0)
curattr = syn_id2attr(-hltab[n].userhl);
#ifdef FEAT_WINDOWS
else if (wp != NULL && wp != curwin && wp->w_status_height != 0)
curattr = highlight_stlnc[hltab[n].userhl - 1];
#endif
else
curattr = highlight_user[hltab[n].userhl - 1];
}
screen_puts(p, row, col, curattr);
if (wp == NULL)
{
/* Fill the TabPageIdxs[] array for clicking in the tab pagesline. */
col = 0;
len = 0;
p = buf;
fillchar = 0;
for (n = 0; tabtab[n].start != NULL; n++)
{
len += vim_strnsize(p, (int)(tabtab[n].start - p));
while (col < len)
TabPageIdxs[col++] = fillchar;
p = tabtab[n].start;
fillchar = tabtab[n].userhl;
}
while (col < Columns)
TabPageIdxs[col++] = fillchar;
}
}
#endif /* FEAT_STL_OPT */
/*
* Output a single character directly to the screen and update ScreenLines.
*/
void
screen_putchar(c, row, col, attr)
int c;
int row, col;
int attr;
{
#ifdef FEAT_MBYTE
char_u buf[MB_MAXBYTES + 1];
buf[(*mb_char2bytes)(c, buf)] = NUL;
#else
char_u buf[2];
buf[0] = c;
buf[1] = NUL;
#endif
screen_puts(buf, row, col, attr);
}
/*
* Get a single character directly from ScreenLines into "bytes[]".
* Also return its attribute in *attrp;
*/
void
screen_getbytes(row, col, bytes, attrp)
int row, col;
char_u *bytes;
int *attrp;
{
unsigned off;
/* safety check */
if (ScreenLines != NULL && row < screen_Rows && col < screen_Columns)
{
off = LineOffset[row] + col;
*attrp = ScreenAttrs[off];
bytes[0] = ScreenLines[off];
bytes[1] = NUL;
#ifdef FEAT_MBYTE
if (enc_utf8 && ScreenLinesUC[off] != 0)
bytes[utfc_char2bytes(off, bytes)] = NUL;
else if (enc_dbcs == DBCS_JPNU && ScreenLines[off] == 0x8e)
{
bytes[0] = ScreenLines[off];
bytes[1] = ScreenLines2[off];
bytes[2] = NUL;
}
else if (enc_dbcs && MB_BYTE2LEN(bytes[0]) > 1)
{
bytes[1] = ScreenLines[off + 1];
bytes[2] = NUL;
}
#endif
}
}
#ifdef FEAT_MBYTE
static int screen_comp_differs __ARGS((int, int*));
/*
* Return TRUE if composing characters for screen posn "off" differs from
* composing characters in "u8cc".
*/
static int
screen_comp_differs(off, u8cc)
int off;
int *u8cc;
{
int i;
for (i = 0; i < Screen_mco; ++i)
{
if (ScreenLinesC[i][off] != (u8char_T)u8cc[i])
return TRUE;
if (u8cc[i] == 0)
break;
}
return FALSE;
}
#endif
/*
* Put string '*text' on the screen at position 'row' and 'col', with
* attributes 'attr', and update ScreenLines[] and ScreenAttrs[].
* Note: only outputs within one row, message is truncated at screen boundary!
* Note: if ScreenLines[], row and/or col is invalid, nothing is done.
*/
void
screen_puts(text, row, col, attr)
char_u *text;
int row;
int col;
int attr;
{
screen_puts_len(text, -1, row, col, attr);
}
/*
* Like screen_puts(), but output "text[len]". When "len" is -1 output up to
* a NUL.
*/
void
screen_puts_len(text, len, row, col, attr)
char_u *text;
int len;
int row;
int col;
int attr;
{
unsigned off;
char_u *ptr = text;
int c;
#ifdef FEAT_MBYTE
int mbyte_blen = 1;
int mbyte_cells = 1;
int u8c = 0;
int u8cc[MAX_MCO];
int clear_next_cell = FALSE;
# ifdef FEAT_ARABIC
int prev_c = 0; /* previous Arabic character */
int pc, nc, nc1;
int pcc[MAX_MCO];
# endif
#endif
if (ScreenLines == NULL || row >= screen_Rows) /* safety check */
return;
off = LineOffset[row] + col;
while (*ptr != NUL && col < screen_Columns
&& (len < 0 || (int)(ptr - text) < len))
{
c = *ptr;
#ifdef FEAT_MBYTE
/* check if this is the first byte of a multibyte */
if (has_mbyte)
{
if (enc_utf8 && len > 0)
mbyte_blen = utfc_ptr2len_len(ptr, (int)((text + len) - ptr));
else
mbyte_blen = (*mb_ptr2len)(ptr);
if (enc_dbcs == DBCS_JPNU && c == 0x8e)
mbyte_cells = 1;
else if (enc_dbcs != 0)
mbyte_cells = mbyte_blen;
else /* enc_utf8 */
{
if (len >= 0)
u8c = utfc_ptr2char_len(ptr, u8cc,
(int)((text + len) - ptr));
else
u8c = utfc_ptr2char(ptr, u8cc);
mbyte_cells = utf_char2cells(u8c);
/* Non-BMP character: display as ? or fullwidth ?. */
if (u8c >= 0x10000)
{
u8c = (mbyte_cells == 2) ? 0xff1f : (int)'?';
if (attr == 0)
attr = hl_attr(HLF_8);
}
# ifdef FEAT_ARABIC
if (p_arshape && !p_tbidi && ARABIC_CHAR(u8c))
{
/* Do Arabic shaping. */
if (len >= 0 && (int)(ptr - text) + mbyte_blen >= len)
{
/* Past end of string to be displayed. */
nc = NUL;
nc1 = NUL;
}
else
{
nc = utfc_ptr2char(ptr + mbyte_blen, pcc);
nc1 = pcc[0];
}
pc = prev_c;
prev_c = u8c;
u8c = arabic_shape(u8c, &c, &u8cc[0], nc, nc1, pc);
}
else
prev_c = u8c;
# endif
}
}
#endif
if (ScreenLines[off] != c
#ifdef FEAT_MBYTE
|| (mbyte_cells == 2
&& ScreenLines[off + 1] != (enc_dbcs ? ptr[1] : 0))
|| (enc_dbcs == DBCS_JPNU
&& c == 0x8e
&& ScreenLines2[off] != ptr[1])
|| (enc_utf8
&& (ScreenLinesUC[off] != (u8char_T)u8c
|| screen_comp_differs(off, u8cc)))
#endif
|| ScreenAttrs[off] != attr
|| exmode_active
)
{
#if defined(FEAT_GUI) || defined(UNIX)
/* The bold trick makes a single row of pixels appear in the next
* character. When a bold character is removed, the next
* character should be redrawn too. This happens for our own GUI
* and for some xterms.
* Force the redraw by setting the attribute to a different value
* than "attr", the contents of ScreenLines[] may be needed by
* mb_off2cells() further on.
* Don't do this for the last drawn character, because the next
* character may not be redrawn. */
if (
# ifdef FEAT_GUI
gui.in_use
# endif
# if defined(FEAT_GUI) && defined(UNIX)
||
# endif
# ifdef UNIX
term_is_xterm
# endif
)
{
int n;
n = ScreenAttrs[off];
# ifdef FEAT_MBYTE
if (col + mbyte_cells < screen_Columns
&& (n > HL_ALL || (n & HL_BOLD))
&& (len < 0 ? ptr[mbyte_blen] != NUL
: ptr + mbyte_blen < text + len))
ScreenAttrs[off + mbyte_cells] = attr + 1;
# else
if (col + 1 < screen_Columns
&& (n > HL_ALL || (n & HL_BOLD))
&& (len < 0 ? ptr[1] != NUL : ptr + 1 < text + len))
ScreenLines[off + 1] = 0;
# endif
}
#endif
#ifdef FEAT_MBYTE
/* When at the end of the text and overwriting a two-cell
* character with a one-cell character, need to clear the next
* cell. Also when overwriting the left halve of a two-cell char
* with the right halve of a two-cell char. Do this only once
* (mb_off2cells() may return 2 on the right halve). */
if (clear_next_cell)
clear_next_cell = FALSE;
else if (has_mbyte
&& (len < 0 ? ptr[mbyte_blen] == NUL
: ptr + mbyte_blen >= text + len)
&& ((mbyte_cells == 1 && (*mb_off2cells)(off) > 1)
|| (mbyte_cells == 2
&& (*mb_off2cells)(off) == 1
&& (*mb_off2cells)(off + 1) > 1)))
clear_next_cell = TRUE;
/* Make sure we never leave a second byte of a double-byte behind,
* it confuses mb_off2cells(). */
if (enc_dbcs
&& ((mbyte_cells == 1 && (*mb_off2cells)(off) > 1)
|| (mbyte_cells == 2
&& (*mb_off2cells)(off) == 1
&& (*mb_off2cells)(off + 1) > 1)))
ScreenLines[off + mbyte_blen] = 0;
#endif
ScreenLines[off] = c;
ScreenAttrs[off] = attr;
#ifdef FEAT_MBYTE
if (enc_utf8)
{
if (c < 0x80 && u8cc[0] == 0)
ScreenLinesUC[off] = 0;
else
{
int i;
ScreenLinesUC[off] = u8c;
for (i = 0; i < Screen_mco; ++i)
{
ScreenLinesC[i][off] = u8cc[i];
if (u8cc[i] == 0)
break;
}
}
if (mbyte_cells == 2)
{
ScreenLines[off + 1] = 0;
ScreenAttrs[off + 1] = attr;
}
screen_char(off, row, col);
}
else if (mbyte_cells == 2)
{
ScreenLines[off + 1] = ptr[1];
ScreenAttrs[off + 1] = attr;
screen_char_2(off, row, col);
}
else if (enc_dbcs == DBCS_JPNU && c == 0x8e)
{
ScreenLines2[off] = ptr[1];
screen_char(off, row, col);
}
else
#endif
screen_char(off, row, col);
}
#ifdef FEAT_MBYTE
if (has_mbyte)
{
off += mbyte_cells;
col += mbyte_cells;
ptr += mbyte_blen;
if (clear_next_cell)
ptr = (char_u *)" ";
}
else
#endif
{
++off;
++col;
++ptr;
}
}
}
#ifdef FEAT_SEARCH_EXTRA
/*
* Prepare for 'searchhl' highlighting.
*/
static void
start_search_hl()
{
if (p_hls && !no_hlsearch)
{
last_pat_prog(&search_hl.rm);
search_hl.attr = hl_attr(HLF_L);
}
}
/*
* Clean up for 'searchhl' highlighting.
*/
static void
end_search_hl()
{
if (search_hl.rm.regprog != NULL)
{
vim_free(search_hl.rm.regprog);
search_hl.rm.regprog = NULL;
}
}
/*
* Advance to the match in window "wp" line "lnum" or past it.
*/
static void
prepare_search_hl(wp, lnum)
win_T *wp;
linenr_T lnum;
{
match_T *shl; /* points to search_hl or match_hl */
int n;
int i;
/*
* When using a multi-line pattern, start searching at the top
* of the window or just after a closed fold.
* Do this both for search_hl and match_hl[3].
*/
for (i = 3; i >= 0; --i)
{
shl = (i == 3) ? &search_hl : &match_hl[i];
if (shl->rm.regprog != NULL
&& shl->lnum == 0
&& re_multiline(shl->rm.regprog))
{
if (shl->first_lnum == 0)
{
# ifdef FEAT_FOLDING
for (shl->first_lnum = lnum;
shl->first_lnum > wp->w_topline; --shl->first_lnum)
if (hasFoldingWin(wp, shl->first_lnum - 1,
NULL, NULL, TRUE, NULL))
break;
# else
shl->first_lnum = wp->w_topline;
# endif
}
n = 0;
while (shl->first_lnum < lnum && shl->rm.regprog != NULL)
{
next_search_hl(wp, shl, shl->first_lnum, (colnr_T)n);
if (shl->lnum != 0)
{
shl->first_lnum = shl->lnum
+ shl->rm.endpos[0].lnum
- shl->rm.startpos[0].lnum;
n = shl->rm.endpos[0].col;
}
else
{
++shl->first_lnum;
n = 0;
}
}
}
}
}
/*
* Search for a next 'searchl' or ":match" match.
* Uses shl->buf.
* Sets shl->lnum and shl->rm contents.
* Note: Assumes a previous match is always before "lnum", unless
* shl->lnum is zero.
* Careful: Any pointers for buffer lines will become invalid.
*/
static void
next_search_hl(win, shl, lnum, mincol)
win_T *win;
match_T *shl; /* points to search_hl or match_hl */
linenr_T lnum;
colnr_T mincol; /* minimal column for a match */
{
linenr_T l;
colnr_T matchcol;
long nmatched;
if (shl->lnum != 0)
{
/* Check for three situations:
* 1. If the "lnum" is below a previous match, start a new search.
* 2. If the previous match includes "mincol", use it.
* 3. Continue after the previous match.
*/
l = shl->lnum + shl->rm.endpos[0].lnum - shl->rm.startpos[0].lnum;
if (lnum > l)
shl->lnum = 0;
else if (lnum < l || shl->rm.endpos[0].col > mincol)
return;
}
/*
* Repeat searching for a match until one is found that includes "mincol"
* or none is found in this line.
*/
called_emsg = FALSE;
for (;;)
{
/* Three situations:
* 1. No useful previous match: search from start of line.
* 2. Not Vi compatible or empty match: continue at next character.
* Break the loop if this is beyond the end of the line.
* 3. Vi compatible searching: continue at end of previous match.
*/
if (shl->lnum == 0)
matchcol = 0;
else if (vim_strchr(p_cpo, CPO_SEARCH) == NULL
|| (shl->rm.endpos[0].lnum == 0
&& shl->rm.endpos[0].col <= shl->rm.startpos[0].col))
{
char_u *ml;
matchcol = shl->rm.startpos[0].col;
ml = ml_get_buf(shl->buf, lnum, FALSE) + matchcol;
if (*ml == NUL)
{
++matchcol;
shl->lnum = 0;
break;
}
#ifdef FEAT_MBYTE
if (has_mbyte)
matchcol += mb_ptr2len(ml);
else
#endif
++matchcol;
}
else
matchcol = shl->rm.endpos[0].col;
shl->lnum = lnum;
nmatched = vim_regexec_multi(&shl->rm, win, shl->buf, lnum, matchcol);
if (called_emsg)
{
/* Error while handling regexp: stop using this regexp. */
if (shl == &search_hl)
{
/* don't free the regprog in match_hl[], it's a copy */
vim_free(shl->rm.regprog);
no_hlsearch = TRUE;
}
shl->rm.regprog = NULL;
shl->lnum = 0;
got_int = FALSE; /* avoid the "Type :quit to exit Vim" message */
break;
}
if (nmatched == 0)
{
shl->lnum = 0; /* no match found */
break;
}
if (shl->rm.startpos[0].lnum > 0
|| shl->rm.startpos[0].col >= mincol
|| nmatched > 1
|| shl->rm.endpos[0].col > mincol)
{
shl->lnum += shl->rm.startpos[0].lnum;
break; /* useful match found */
}
}
}
#endif
static void
screen_start_highlight(attr)
int attr;
{
attrentry_T *aep = NULL;
screen_attr = attr;
if (full_screen
#ifdef WIN3264
&& termcap_active
#endif
)
{
#ifdef FEAT_GUI
if (gui.in_use)
{
char buf[20];
/* The GUI handles this internally. */
sprintf(buf, IF_EB("\033|%dh", ESC_STR "|%dh"), attr);
OUT_STR(buf);
}
else
#endif
{
if (attr > HL_ALL) /* special HL attr. */
{
if (t_colors > 1)
aep = syn_cterm_attr2entry(attr);
else
aep = syn_term_attr2entry(attr);
if (aep == NULL) /* did ":syntax clear" */
attr = 0;
else
attr = aep->ae_attr;
}
if ((attr & HL_BOLD) && T_MD != NULL) /* bold */
out_str(T_MD);
else if (aep != NULL && t_colors > 1 && aep->ae_u.cterm.fg_color
&& cterm_normal_fg_bold)
/* If the Normal FG color has BOLD attribute and the new HL
* has a FG color defined, clear BOLD. */
out_str(T_ME);
if ((attr & HL_STANDOUT) && T_SO != NULL) /* standout */
out_str(T_SO);
if ((attr & (HL_UNDERLINE | HL_UNDERCURL)) && T_US != NULL)
/* underline or undercurl */
out_str(T_US);
if ((attr & HL_ITALIC) && T_CZH != NULL) /* italic */
out_str(T_CZH);
if ((attr & HL_INVERSE) && T_MR != NULL) /* inverse (reverse) */
out_str(T_MR);
/*
* Output the color or start string after bold etc., in case the
* bold etc. override the color setting.
*/
if (aep != NULL)
{
if (t_colors > 1)
{
if (aep->ae_u.cterm.fg_color)
term_fg_color(aep->ae_u.cterm.fg_color - 1);
if (aep->ae_u.cterm.bg_color)
term_bg_color(aep->ae_u.cterm.bg_color - 1);
}
else
{
if (aep->ae_u.term.start != NULL)
out_str(aep->ae_u.term.start);
}
}
}
}
}
void
screen_stop_highlight()
{
int do_ME = FALSE; /* output T_ME code */
if (screen_attr != 0
#ifdef WIN3264
&& termcap_active
#endif
)
{
#ifdef FEAT_GUI
if (gui.in_use)
{
char buf[20];
/* use internal GUI code */
sprintf(buf, IF_EB("\033|%dH", ESC_STR "|%dH"), screen_attr);
OUT_STR(buf);
}
else
#endif
{
if (screen_attr > HL_ALL) /* special HL attr. */
{
attrentry_T *aep;
if (t_colors > 1)
{
/*
* Assume that t_me restores the original colors!
*/
aep = syn_cterm_attr2entry(screen_attr);
if (aep != NULL && (aep->ae_u.cterm.fg_color
|| aep->ae_u.cterm.bg_color))
do_ME = TRUE;
}
else
{
aep = syn_term_attr2entry(screen_attr);
if (aep != NULL && aep->ae_u.term.stop != NULL)
{
if (STRCMP(aep->ae_u.term.stop, T_ME) == 0)
do_ME = TRUE;
else
out_str(aep->ae_u.term.stop);
}
}
if (aep == NULL) /* did ":syntax clear" */
screen_attr = 0;
else
screen_attr = aep->ae_attr;
}
/*
* Often all ending-codes are equal to T_ME. Avoid outputting the
* same sequence several times.
*/
if (screen_attr & HL_STANDOUT)
{
if (STRCMP(T_SE, T_ME) == 0)
do_ME = TRUE;
else
out_str(T_SE);
}
if (screen_attr & (HL_UNDERLINE | HL_UNDERCURL))
{
if (STRCMP(T_UE, T_ME) == 0)
do_ME = TRUE;
else
out_str(T_UE);
}
if (screen_attr & HL_ITALIC)
{
if (STRCMP(T_CZR, T_ME) == 0)
do_ME = TRUE;
else
out_str(T_CZR);
}
if (do_ME || (screen_attr & (HL_BOLD | HL_INVERSE)))
out_str(T_ME);
if (t_colors > 1)
{
/* set Normal cterm colors */
if (cterm_normal_fg_color != 0)
term_fg_color(cterm_normal_fg_color - 1);
if (cterm_normal_bg_color != 0)
term_bg_color(cterm_normal_bg_color - 1);
if (cterm_normal_fg_bold)
out_str(T_MD);
}
}
}
screen_attr = 0;
}
/*
* Reset the colors for a cterm. Used when leaving Vim.
* The machine specific code may override this again.
*/
void
reset_cterm_colors()
{
if (t_colors > 1)
{
/* set Normal cterm colors */
if (cterm_normal_fg_color > 0 || cterm_normal_bg_color > 0)
{
out_str(T_OP);
screen_attr = -1;
}
if (cterm_normal_fg_bold)
{
out_str(T_ME);
screen_attr = -1;
}
}
}
/*
* Put character ScreenLines["off"] on the screen at position "row" and "col",
* using the attributes from ScreenAttrs["off"].
*/
static void
screen_char(off, row, col)
unsigned off;
int row;
int col;
{
int attr;
/* Check for illegal values, just in case (could happen just after
* resizing). */
if (row >= screen_Rows || col >= screen_Columns)
return;
/* Outputting the last character on the screen may scrollup the screen.
* Don't to it! Mark the character invalid (update it when scrolled up) */
if (row == screen_Rows - 1 && col == screen_Columns - 1
#ifdef FEAT_RIGHTLEFT
/* account for first command-line character in rightleft mode */
&& !cmdmsg_rl
#endif
)
{
ScreenAttrs[off] = (sattr_T)-1;
return;
}
/*
* Stop highlighting first, so it's easier to move the cursor.
*/
#if defined(FEAT_CLIPBOARD) || defined(FEAT_VERTSPLIT)
if (screen_char_attr != 0)
attr = screen_char_attr;
else
#endif
attr = ScreenAttrs[off];
if (screen_attr != attr)
screen_stop_highlight();
windgoto(row, col);
if (screen_attr != attr)
screen_start_highlight(attr);
#ifdef FEAT_MBYTE
if (enc_utf8 && ScreenLinesUC[off] != 0)
{
char_u buf[MB_MAXBYTES + 1];
/* Convert UTF-8 character to bytes and write it. */
buf[utfc_char2bytes(off, buf)] = NUL;
out_str(buf);
if (utf_char2cells(ScreenLinesUC[off]) > 1)
++screen_cur_col;
}
else
#endif
{
#ifdef FEAT_MBYTE
out_flush_check();
#endif
out_char(ScreenLines[off]);
#ifdef FEAT_MBYTE
/* double-byte character in single-width cell */
if (enc_dbcs == DBCS_JPNU && ScreenLines[off] == 0x8e)
out_char(ScreenLines2[off]);
#endif
}
screen_cur_col++;
}
#ifdef FEAT_MBYTE
/*
* Used for enc_dbcs only: Put one double-wide character at ScreenLines["off"]
* on the screen at position 'row' and 'col'.
* The attributes of the first byte is used for all. This is required to
* output the two bytes of a double-byte character with nothing in between.
*/
static void
screen_char_2(off, row, col)
unsigned off;
int row;
int col;
{
/* Check for illegal values (could be wrong when screen was resized). */
if (off + 1 >= (unsigned)(screen_Rows * screen_Columns))
return;
/* Outputting the last character on the screen may scrollup the screen.
* Don't to it! Mark the character invalid (update it when scrolled up) */
if (row == screen_Rows - 1 && col >= screen_Columns - 2)
{
ScreenAttrs[off] = (sattr_T)-1;
return;
}
/* Output the first byte normally (positions the cursor), then write the
* second byte directly. */
screen_char(off, row, col);
out_char(ScreenLines[off + 1]);
++screen_cur_col;
}
#endif
#if defined(FEAT_CLIPBOARD) || defined(FEAT_VERTSPLIT) || defined(PROTO)
/*
* Draw a rectangle of the screen, inverted when "invert" is TRUE.
* This uses the contents of ScreenLines[] and doesn't change it.
*/
void
screen_draw_rectangle(row, col, height, width, invert)
int row;
int col;
int height;
int width;
int invert;
{
int r, c;
int off;
/* Can't use ScreenLines unless initialized */
if (ScreenLines == NULL)
return;
if (invert)
screen_char_attr = HL_INVERSE;
for (r = row; r < row + height; ++r)
{
off = LineOffset[r];
for (c = col; c < col + width; ++c)
{
#ifdef FEAT_MBYTE
if (enc_dbcs != 0 && dbcs_off2cells(off + c) > 1)
{
screen_char_2(off + c, r, c);
++c;
}
else
#endif
{
screen_char(off + c, r, c);
#ifdef FEAT_MBYTE
if (utf_off2cells(off + c) > 1)
++c;
#endif
}
}
}
screen_char_attr = 0;
}
#endif
#ifdef FEAT_VERTSPLIT
/*
* Redraw the characters for a vertically split window.
*/
static void
redraw_block(row, end, wp)
int row;
int end;
win_T *wp;
{
int col;
int width;
# ifdef FEAT_CLIPBOARD
clip_may_clear_selection(row, end - 1);
# endif
if (wp == NULL)
{
col = 0;
width = Columns;
}
else
{
col = wp->w_wincol;
width = wp->w_width;
}
screen_draw_rectangle(row, col, end - row, width, FALSE);
}
#endif
/*
* Fill the screen from 'start_row' to 'end_row', from 'start_col' to 'end_col'
* with character 'c1' in first column followed by 'c2' in the other columns.
* Use attributes 'attr'.
*/
void
screen_fill(start_row, end_row, start_col, end_col, c1, c2, attr)
int start_row, end_row;
int start_col, end_col;
int c1, c2;
int attr;
{
int row;
int col;
int off;
int end_off;
int did_delete;
int c;
int norm_term;
#if defined(FEAT_GUI) || defined(UNIX)
int force_next = FALSE;
#endif
if (end_row > screen_Rows) /* safety check */
end_row = screen_Rows;
if (end_col > screen_Columns) /* safety check */
end_col = screen_Columns;
if (ScreenLines == NULL
|| start_row >= end_row
|| start_col >= end_col) /* nothing to do */
return;
/* it's a "normal" terminal when not in a GUI or cterm */
norm_term = (
#ifdef FEAT_GUI
!gui.in_use &&
#endif
t_colors <= 1);
for (row = start_row; row < end_row; ++row)
{
/*
* Try to use delete-line termcap code, when no attributes or in a
* "normal" terminal, where a bold/italic space is just a
* space.
*/
did_delete = FALSE;
if (c2 == ' '
&& end_col == Columns
&& can_clear(T_CE)
&& (attr == 0
|| (norm_term
&& attr <= HL_ALL
&& ((attr & ~(HL_BOLD | HL_ITALIC)) == 0))))
{
/*
* check if we really need to clear something
*/
col = start_col;
if (c1 != ' ') /* don't clear first char */
++col;
off = LineOffset[row] + col;
end_off = LineOffset[row] + end_col;
/* skip blanks (used often, keep it fast!) */
#ifdef FEAT_MBYTE
if (enc_utf8)
while (off < end_off && ScreenLines[off] == ' '
&& ScreenAttrs[off] == 0 && ScreenLinesUC[off] == 0)
++off;
else
#endif
while (off < end_off && ScreenLines[off] == ' '
&& ScreenAttrs[off] == 0)
++off;
if (off < end_off) /* something to be cleared */
{
col = off - LineOffset[row];
screen_stop_highlight();
term_windgoto(row, col);/* clear rest of this screen line */
out_str(T_CE);
screen_start(); /* don't know where cursor is now */
col = end_col - col;
while (col--) /* clear chars in ScreenLines */
{
ScreenLines[off] = ' ';
#ifdef FEAT_MBYTE
if (enc_utf8)
ScreenLinesUC[off] = 0;
#endif
ScreenAttrs[off] = 0;
++off;
}
}
did_delete = TRUE; /* the chars are cleared now */
}
off = LineOffset[row] + start_col;
c = c1;
for (col = start_col; col < end_col; ++col)
{
if (ScreenLines[off] != c
#ifdef FEAT_MBYTE
|| (enc_utf8 && (int)ScreenLinesUC[off]
!= (c >= 0x80 ? c : 0))
#endif
|| ScreenAttrs[off] != attr
#if defined(FEAT_GUI) || defined(UNIX)
|| force_next
#endif
)
{
#if defined(FEAT_GUI) || defined(UNIX)
/* The bold trick may make a single row of pixels appear in
* the next character. When a bold character is removed, the
* next character should be redrawn too. This happens for our
* own GUI and for some xterms. */
if (
# ifdef FEAT_GUI
gui.in_use
# endif
# if defined(FEAT_GUI) && defined(UNIX)
||
# endif
# ifdef UNIX
term_is_xterm
# endif
)
{
if (ScreenLines[off] != ' '
&& (ScreenAttrs[off] > HL_ALL
|| ScreenAttrs[off] & HL_BOLD))
force_next = TRUE;
else
force_next = FALSE;
}
#endif
ScreenLines[off] = c;
#ifdef FEAT_MBYTE
if (enc_utf8)
{
if (c >= 0x80)
{
ScreenLinesUC[off] = c;
ScreenLinesC[0][off] = 0;
}
else
ScreenLinesUC[off] = 0;
}
#endif
ScreenAttrs[off] = attr;
if (!did_delete || c != ' ')
screen_char(off, row, col);
}
++off;
if (col == start_col)
{
if (did_delete)
break;
c = c2;
}
}
if (end_col == Columns)
LineWraps[row] = FALSE;
if (row == Rows - 1) /* overwritten the command line */
{
redraw_cmdline = TRUE;
if (c1 == ' ' && c2 == ' ')
clear_cmdline = FALSE; /* command line has been cleared */
if (start_col == 0)
mode_displayed = FALSE; /* mode cleared or overwritten */
}
}
}
/*
* Check if there should be a delay. Used before clearing or redrawing the
* screen or the command line.
*/
void
check_for_delay(check_msg_scroll)
int check_msg_scroll;
{
if ((emsg_on_display || (check_msg_scroll && msg_scroll))
&& !did_wait_return
&& emsg_silent == 0)
{
out_flush();
ui_delay(1000L, TRUE);
emsg_on_display = FALSE;
if (check_msg_scroll)
msg_scroll = FALSE;
}
}
/*
* screen_valid - allocate screen buffers if size changed
* If "clear" is TRUE: clear screen if it has been resized.
* Returns TRUE if there is a valid screen to write to.
* Returns FALSE when starting up and screen not initialized yet.
*/
int
screen_valid(clear)
int clear;
{
screenalloc(clear); /* allocate screen buffers if size changed */
return (ScreenLines != NULL);
}
/*
* Resize the shell to Rows and Columns.
* Allocate ScreenLines[] and associated items.
*
* There may be some time between setting Rows and Columns and (re)allocating
* ScreenLines[]. This happens when starting up and when (manually) changing
* the shell size. Always use screen_Rows and screen_Columns to access items
* in ScreenLines[]. Use Rows and Columns for positioning text etc. where the
* final size of the shell is needed.
*/
void
screenalloc(clear)
int clear;
{
int new_row, old_row;
#ifdef FEAT_GUI
int old_Rows;
#endif
win_T *wp;
int outofmem = FALSE;
int len;
schar_T *new_ScreenLines;
#ifdef FEAT_MBYTE
u8char_T *new_ScreenLinesUC = NULL;
u8char_T *new_ScreenLinesC[MAX_MCO];
schar_T *new_ScreenLines2 = NULL;
int i;
#endif
sattr_T *new_ScreenAttrs;
unsigned *new_LineOffset;
char_u *new_LineWraps;
#ifdef FEAT_WINDOWS
short *new_TabPageIdxs;
tabpage_T *tp;
#endif
static int entered = FALSE; /* avoid recursiveness */
static int done_outofmem_msg = FALSE; /* did outofmem message */
/*
* Allocation of the screen buffers is done only when the size changes and
* when Rows and Columns have been set and we have started doing full
* screen stuff.
*/
if ((ScreenLines != NULL
&& Rows == screen_Rows
&& Columns == screen_Columns
#ifdef FEAT_MBYTE
&& enc_utf8 == (ScreenLinesUC != NULL)
&& (enc_dbcs == DBCS_JPNU) == (ScreenLines2 != NULL)
&& p_mco == Screen_mco
#endif
)
|| Rows == 0
|| Columns == 0
|| (!full_screen && ScreenLines == NULL))
return;
/*
* It's possible that we produce an out-of-memory message below, which
* will cause this function to be called again. To break the loop, just
* return here.
*/
if (entered)
return;
entered = TRUE;
/*
* Note that the window sizes are updated before reallocating the arrays,
* thus we must not redraw here!
*/
++RedrawingDisabled;
win_new_shellsize(); /* fit the windows in the new sized shell */
comp_col(); /* recompute columns for shown command and ruler */
/*
* We're changing the size of the screen.
* - Allocate new arrays for ScreenLines and ScreenAttrs.
* - Move lines from the old arrays into the new arrays, clear extra
* lines (unless the screen is going to be cleared).
* - Free the old arrays.
*
* If anything fails, make ScreenLines NULL, so we don't do anything!
* Continuing with the old ScreenLines may result in a crash, because the
* size is wrong.
*/
FOR_ALL_TAB_WINDOWS(tp, wp)
win_free_lsize(wp);
new_ScreenLines = (schar_T *)lalloc((long_u)(
(Rows + 1) * Columns * sizeof(schar_T)), FALSE);
#ifdef FEAT_MBYTE
vim_memset(new_ScreenLinesC, 0, sizeof(u8char_T) * MAX_MCO);
if (enc_utf8)
{
new_ScreenLinesUC = (u8char_T *)lalloc((long_u)(
(Rows + 1) * Columns * sizeof(u8char_T)), FALSE);
for (i = 0; i < p_mco; ++i)
new_ScreenLinesC[i] = (u8char_T *)lalloc((long_u)(
(Rows + 1) * Columns * sizeof(u8char_T)), FALSE);
}
if (enc_dbcs == DBCS_JPNU)
new_ScreenLines2 = (schar_T *)lalloc((long_u)(
(Rows + 1) * Columns * sizeof(schar_T)), FALSE);
#endif
new_ScreenAttrs = (sattr_T *)lalloc((long_u)(
(Rows + 1) * Columns * sizeof(sattr_T)), FALSE);
new_LineOffset = (unsigned *)lalloc((long_u)(
Rows * sizeof(unsigned)), FALSE);
new_LineWraps = (char_u *)lalloc((long_u)(Rows * sizeof(char_u)), FALSE);
#ifdef FEAT_WINDOWS
new_TabPageIdxs = (short *)lalloc((long_u)(Columns * sizeof(short)), FALSE);
#endif
FOR_ALL_TAB_WINDOWS(tp, wp)
{
if (win_alloc_lines(wp) == FAIL)
{
outofmem = TRUE;
#ifdef FEAT_WINDOWS
break;
#endif
}
}
#ifdef FEAT_MBYTE
for (i = 0; i < p_mco; ++i)
if (new_ScreenLinesC[i] == NULL)
break;
#endif
if (new_ScreenLines == NULL
#ifdef FEAT_MBYTE
|| (enc_utf8 && (new_ScreenLinesUC == NULL || i != p_mco))
|| (enc_dbcs == DBCS_JPNU && new_ScreenLines2 == NULL)
#endif
|| new_ScreenAttrs == NULL
|| new_LineOffset == NULL
|| new_LineWraps == NULL
#ifdef FEAT_WINDOWS
|| new_TabPageIdxs == NULL
#endif
|| outofmem)
{
if (ScreenLines != NULL || !done_outofmem_msg)
{
/* guess the size */
do_outofmem_msg((long_u)((Rows + 1) * Columns));
/* Remember we did this to avoid getting outofmem messages over
* and over again. */
done_outofmem_msg = TRUE;
}
vim_free(new_ScreenLines);
new_ScreenLines = NULL;
#ifdef FEAT_MBYTE
vim_free(new_ScreenLinesUC);
new_ScreenLinesUC = NULL;
for (i = 0; i < p_mco; ++i)
{
vim_free(new_ScreenLinesC[i]);
new_ScreenLinesC[i] = NULL;
}
vim_free(new_ScreenLines2);
new_ScreenLines2 = NULL;
#endif
vim_free(new_ScreenAttrs);
new_ScreenAttrs = NULL;
vim_free(new_LineOffset);
new_LineOffset = NULL;
vim_free(new_LineWraps);
new_LineWraps = NULL;
#ifdef FEAT_WINDOWS
vim_free(new_TabPageIdxs);
new_TabPageIdxs = NULL;
#endif
}
else
{
done_outofmem_msg = FALSE;
for (new_row = 0; new_row < Rows; ++new_row)
{
new_LineOffset[new_row] = new_row * Columns;
new_LineWraps[new_row] = FALSE;
/*
* If the screen is not going to be cleared, copy as much as
* possible from the old screen to the new one and clear the rest
* (used when resizing the window at the "--more--" prompt or when
* executing an external command, for the GUI).
*/
if (!clear)
{
(void)vim_memset(new_ScreenLines + new_row * Columns,
' ', (size_t)Columns * sizeof(schar_T));
#ifdef FEAT_MBYTE
if (enc_utf8)
{
(void)vim_memset(new_ScreenLinesUC + new_row * Columns,
0, (size_t)Columns * sizeof(u8char_T));
for (i = 0; i < p_mco; ++i)
(void)vim_memset(new_ScreenLinesC[i]
+ new_row * Columns,
0, (size_t)Columns * sizeof(u8char_T));
}
if (enc_dbcs == DBCS_JPNU)
(void)vim_memset(new_ScreenLines2 + new_row * Columns,
0, (size_t)Columns * sizeof(schar_T));
#endif
(void)vim_memset(new_ScreenAttrs + new_row * Columns,
0, (size_t)Columns * sizeof(sattr_T));
old_row = new_row + (screen_Rows - Rows);
if (old_row >= 0 && ScreenLines != NULL)
{
if (screen_Columns < Columns)
len = screen_Columns;
else
len = Columns;
#ifdef FEAT_MBYTE
/* When switching to utf-8 don't copy characters, they
* may be invalid now. Also when p_mco changes. */
if (!(enc_utf8 && ScreenLinesUC == NULL)
&& p_mco == Screen_mco)
#endif
mch_memmove(new_ScreenLines + new_LineOffset[new_row],
ScreenLines + LineOffset[old_row],
(size_t)len * sizeof(schar_T));
#ifdef FEAT_MBYTE
if (enc_utf8 && ScreenLinesUC != NULL
&& p_mco == Screen_mco)
{
mch_memmove(new_ScreenLinesUC + new_LineOffset[new_row],
ScreenLinesUC + LineOffset[old_row],
(size_t)len * sizeof(u8char_T));
for (i = 0; i < p_mco; ++i)
mch_memmove(new_ScreenLinesC[i]
+ new_LineOffset[new_row],
ScreenLinesC[i] + LineOffset[old_row],
(size_t)len * sizeof(u8char_T));
}
if (enc_dbcs == DBCS_JPNU && ScreenLines2 != NULL)
mch_memmove(new_ScreenLines2 + new_LineOffset[new_row],
ScreenLines2 + LineOffset[old_row],
(size_t)len * sizeof(schar_T));
#endif
mch_memmove(new_ScreenAttrs + new_LineOffset[new_row],
ScreenAttrs + LineOffset[old_row],
(size_t)len * sizeof(sattr_T));
}
}
}
/* Use the last line of the screen for the current line. */
current_ScreenLine = new_ScreenLines + Rows * Columns;
}
free_screenlines();
ScreenLines = new_ScreenLines;
#ifdef FEAT_MBYTE
ScreenLinesUC = new_ScreenLinesUC;
for (i = 0; i < p_mco; ++i)
ScreenLinesC[i] = new_ScreenLinesC[i];
Screen_mco = p_mco;
ScreenLines2 = new_ScreenLines2;
#endif
ScreenAttrs = new_ScreenAttrs;
LineOffset = new_LineOffset;
LineWraps = new_LineWraps;
#ifdef FEAT_WINDOWS
TabPageIdxs = new_TabPageIdxs;
#endif
/* It's important that screen_Rows and screen_Columns reflect the actual
* size of ScreenLines[]. Set them before calling anything. */
#ifdef FEAT_GUI
old_Rows = screen_Rows;
#endif
screen_Rows = Rows;
screen_Columns = Columns;
must_redraw = CLEAR; /* need to clear the screen later */
if (clear)
screenclear2();
#ifdef FEAT_GUI
else if (gui.in_use
&& !gui.starting
&& ScreenLines != NULL
&& old_Rows != Rows)
{
(void)gui_redraw_block(0, 0, (int)Rows - 1, (int)Columns - 1, 0);
/*
* Adjust the position of the cursor, for when executing an external
* command.
*/
if (msg_row >= Rows) /* Rows got smaller */
msg_row = Rows - 1; /* put cursor at last row */
else if (Rows > old_Rows) /* Rows got bigger */
msg_row += Rows - old_Rows; /* put cursor in same place */
if (msg_col >= Columns) /* Columns got smaller */
msg_col = Columns - 1; /* put cursor at last column */
}
#endif
entered = FALSE;
--RedrawingDisabled;
#ifdef FEAT_AUTOCMD
if (starting == 0)
apply_autocmds(EVENT_VIMRESIZED, NULL, NULL, FALSE, curbuf);
#endif
}
void
free_screenlines()
{
#ifdef FEAT_MBYTE
int i;
vim_free(ScreenLinesUC);
for (i = 0; i < Screen_mco; ++i)
vim_free(ScreenLinesC[i]);
vim_free(ScreenLines2);
#endif
vim_free(ScreenLines);
vim_free(ScreenAttrs);
vim_free(LineOffset);
vim_free(LineWraps);
#ifdef FEAT_WINDOWS
vim_free(TabPageIdxs);
#endif
}
void
screenclear()
{
check_for_delay(FALSE);
screenalloc(FALSE); /* allocate screen buffers if size changed */
screenclear2(); /* clear the screen */
}
static void
screenclear2()
{
int i;
if (starting == NO_SCREEN || ScreenLines == NULL
#ifdef FEAT_GUI
|| (gui.in_use && gui.starting)
#endif
)
return;
#ifdef FEAT_GUI
if (!gui.in_use)
#endif
screen_attr = -1; /* force setting the Normal colors */
screen_stop_highlight(); /* don't want highlighting here */
#ifdef FEAT_CLIPBOARD
/* disable selection without redrawing it */
clip_scroll_selection(9999);
#endif
/* blank out ScreenLines */
for (i = 0; i < Rows; ++i)
{
lineclear(LineOffset[i], (int)Columns);
LineWraps[i] = FALSE;
}
if (can_clear(T_CL))
{
out_str(T_CL); /* clear the display */
clear_cmdline = FALSE;
mode_displayed = FALSE;
}
else
{
/* can't clear the screen, mark all chars with invalid attributes */
for (i = 0; i < Rows; ++i)
lineinvalid(LineOffset[i], (int)Columns);
clear_cmdline = TRUE;
}
screen_cleared = TRUE; /* can use contents of ScreenLines now */
win_rest_invalid(firstwin);
redraw_cmdline = TRUE;
#ifdef FEAT_WINDOWS
redraw_tabline = TRUE;
#endif
if (must_redraw == CLEAR) /* no need to clear again */
must_redraw = NOT_VALID;
compute_cmdrow();
msg_row = cmdline_row; /* put cursor on last line for messages */
msg_col = 0;
screen_start(); /* don't know where cursor is now */
msg_scrolled = 0; /* can't scroll back */
msg_didany = FALSE;
msg_didout = FALSE;
}
/*
* Clear one line in ScreenLines.
*/
static void
lineclear(off, width)
unsigned off;
int width;
{
(void)vim_memset(ScreenLines + off, ' ', (size_t)width * sizeof(schar_T));
#ifdef FEAT_MBYTE
if (enc_utf8)
(void)vim_memset(ScreenLinesUC + off, 0,
(size_t)width * sizeof(u8char_T));
#endif
(void)vim_memset(ScreenAttrs + off, 0, (size_t)width * sizeof(sattr_T));
}
/*
* Mark one line in ScreenLines invalid by setting the attributes to an
* invalid value.
*/
static void
lineinvalid(off, width)
unsigned off;
int width;
{
(void)vim_memset(ScreenAttrs + off, -1, (size_t)width * sizeof(sattr_T));
}
#ifdef FEAT_VERTSPLIT
/*
* Copy part of a Screenline for vertically split window "wp".
*/
static void
linecopy(to, from, wp)
int to;
int from;
win_T *wp;
{
unsigned off_to = LineOffset[to] + wp->w_wincol;
unsigned off_from = LineOffset[from] + wp->w_wincol;
mch_memmove(ScreenLines + off_to, ScreenLines + off_from,
wp->w_width * sizeof(schar_T));
# ifdef FEAT_MBYTE
if (enc_utf8)
{
int i;
mch_memmove(ScreenLinesUC + off_to, ScreenLinesUC + off_from,
wp->w_width * sizeof(u8char_T));
for (i = 0; i < p_mco; ++i)
mch_memmove(ScreenLinesC[i] + off_to, ScreenLinesC[i] + off_from,
wp->w_width * sizeof(u8char_T));
}
if (enc_dbcs == DBCS_JPNU)
mch_memmove(ScreenLines2 + off_to, ScreenLines2 + off_from,
wp->w_width * sizeof(schar_T));
# endif
mch_memmove(ScreenAttrs + off_to, ScreenAttrs + off_from,
wp->w_width * sizeof(sattr_T));
}
#endif
/*
* Return TRUE if clearing with term string "p" would work.
* It can't work when the string is empty or it won't set the right background.
*/
int
can_clear(p)
char_u *p;
{
return (*p != NUL && (t_colors <= 1
#ifdef FEAT_GUI
|| gui.in_use
#endif
|| cterm_normal_bg_color == 0 || *T_UT != NUL));
}
/*
* Reset cursor position. Use whenever cursor was moved because of outputting
* something directly to the screen (shell commands) or a terminal control
* code.
*/
void
screen_start()
{
screen_cur_row = screen_cur_col = 9999;
}
/*
* Move the cursor to position "row","col" in the screen.
* This tries to find the most efficient way to move, minimizing the number of
* characters sent to the terminal.
*/
void
windgoto(row, col)
int row;
int col;
{
sattr_T *p;
int i;
int plan;
int cost;
int wouldbe_col;
int noinvcurs;
char_u *bs;
int goto_cost;
int attr;
#define GOTO_COST 7 /* assume a term_windgoto() takes about 7 chars */
#define HIGHL_COST 5 /* assume unhighlight takes 5 chars */
#define PLAN_LE 1
#define PLAN_CR 2
#define PLAN_NL 3
#define PLAN_WRITE 4
/* Can't use ScreenLines unless initialized */
if (ScreenLines == NULL)
return;
if (col != screen_cur_col || row != screen_cur_row)
{
/* Check for valid position. */
if (row < 0) /* window without text lines? */
row = 0;
if (row >= screen_Rows)
row = screen_Rows - 1;
if (col >= screen_Columns)
col = screen_Columns - 1;
/* check if no cursor movement is allowed in highlight mode */
if (screen_attr && *T_MS == NUL)
noinvcurs = HIGHL_COST;
else
noinvcurs = 0;
goto_cost = GOTO_COST + noinvcurs;
/*
* Plan how to do the positioning:
* 1. Use CR to move it to column 0, same row.
* 2. Use T_LE to move it a few columns to the left.
* 3. Use NL to move a few lines down, column 0.
* 4. Move a few columns to the right with T_ND or by writing chars.
*
* Don't do this if the cursor went beyond the last column, the cursor
* position is unknown then (some terminals wrap, some don't )
*
* First check if the highlighting attributes allow us to write
* characters to move the cursor to the right.
*/
if (row >= screen_cur_row && screen_cur_col < Columns)
{
/*
* If the cursor is in the same row, bigger col, we can use CR
* or T_LE.
*/
bs = NULL; /* init for GCC */
attr = screen_attr;
if (row == screen_cur_row && col < screen_cur_col)
{
/* "le" is preferred over "bc", because "bc" is obsolete */
if (*T_LE)
bs = T_LE; /* "cursor left" */
else
bs = T_BC; /* "backspace character (old) */
if (*bs)
cost = (screen_cur_col - col) * (int)STRLEN(bs);
else
cost = 999;
if (col + 1 < cost) /* using CR is less characters */
{
plan = PLAN_CR;
wouldbe_col = 0;
cost = 1; /* CR is just one character */
}
else
{
plan = PLAN_LE;
wouldbe_col = col;
}
if (noinvcurs) /* will stop highlighting */
{
cost += noinvcurs;
attr = 0;
}
}
/*
* If the cursor is above where we want to be, we can use CR LF.
*/
else if (row > screen_cur_row)
{
plan = PLAN_NL;
wouldbe_col = 0;
cost = (row - screen_cur_row) * 2; /* CR LF */
if (noinvcurs) /* will stop highlighting */
{
cost += noinvcurs;
attr = 0;
}
}
/*
* If the cursor is in the same row, smaller col, just use write.
*/
else
{
plan = PLAN_WRITE;
wouldbe_col = screen_cur_col;
cost = 0;
}
/*
* Check if any characters that need to be written have the
* correct attributes. Also avoid UTF-8 characters.
*/
i = col - wouldbe_col;
if (i > 0)
cost += i;
if (cost < goto_cost && i > 0)
{
/*
* Check if the attributes are correct without additionally
* stopping highlighting.
*/
p = ScreenAttrs + LineOffset[row] + wouldbe_col;
while (i && *p++ == attr)
--i;
if (i != 0)
{
/*
* Try if it works when highlighting is stopped here.
*/
if (*--p == 0)
{
cost += noinvcurs;
while (i && *p++ == 0)
--i;
}
if (i != 0)
cost = 999; /* different attributes, don't do it */
}
#ifdef FEAT_MBYTE
if (enc_utf8)
{
/* Don't use an UTF-8 char for positioning, it's slow. */
for (i = wouldbe_col; i < col; ++i)
if (ScreenLinesUC[LineOffset[row] + i] != 0)
{
cost = 999;
break;
}
}
#endif
}
/*
* We can do it without term_windgoto()!
*/
if (cost < goto_cost)
{
if (plan == PLAN_LE)
{
if (noinvcurs)
screen_stop_highlight();
while (screen_cur_col > col)
{
out_str(bs);
--screen_cur_col;
}
}
else if (plan == PLAN_CR)
{
if (noinvcurs)
screen_stop_highlight();
out_char('\r');
screen_cur_col = 0;
}
else if (plan == PLAN_NL)
{
if (noinvcurs)
screen_stop_highlight();
while (screen_cur_row < row)
{
out_char('\n');
++screen_cur_row;
}
screen_cur_col = 0;
}
i = col - screen_cur_col;
if (i > 0)
{
/*
* Use cursor-right if it's one character only. Avoids
* removing a line of pixels from the last bold char, when
* using the bold trick in the GUI.
*/
if (T_ND[0] != NUL && T_ND[1] == NUL)
{
while (i-- > 0)
out_char(*T_ND);
}
else
{
int off;
off = LineOffset[row] + screen_cur_col;
while (i-- > 0)
{
if (ScreenAttrs[off] != screen_attr)
screen_stop_highlight();
#ifdef FEAT_MBYTE
out_flush_check();
#endif
out_char(ScreenLines[off]);
#ifdef FEAT_MBYTE
if (enc_dbcs == DBCS_JPNU
&& ScreenLines[off] == 0x8e)
out_char(ScreenLines2[off]);
#endif
++off;
}
}
}
}
}
else
cost = 999;
if (cost >= goto_cost)
{
if (noinvcurs)
screen_stop_highlight();
if (row == screen_cur_row && (col > screen_cur_col) &&
*T_CRI != NUL)
term_cursor_right(col - screen_cur_col);
else
term_windgoto(row, col);
}
screen_cur_row = row;
screen_cur_col = col;
}
}
/*
* Set cursor to its position in the current window.
*/
void
setcursor()
{
if (redrawing())
{
validate_cursor();
windgoto(W_WINROW(curwin) + curwin->w_wrow,
W_WINCOL(curwin) + (
#ifdef FEAT_RIGHTLEFT
curwin->w_p_rl ? ((int)W_WIDTH(curwin) - curwin->w_wcol - (
# ifdef FEAT_MBYTE
has_mbyte ? (*mb_ptr2cells)(ml_get_cursor()) :
# endif
1)) :
#endif
curwin->w_wcol));
}
}
/*
* insert 'line_count' lines at 'row' in window 'wp'
* if 'invalid' is TRUE the wp->w_lines[].wl_lnum is invalidated.
* if 'mayclear' is TRUE the screen will be cleared if it is faster than
* scrolling.
* Returns FAIL if the lines are not inserted, OK for success.
*/
int
win_ins_lines(wp, row, line_count, invalid, mayclear)
win_T *wp;
int row;
int line_count;
int invalid;
int mayclear;
{
int did_delete;
int nextrow;
int lastrow;
int retval;
if (invalid)
wp->w_lines_valid = 0;
if (wp->w_height < 5)
return FAIL;
if (line_count > wp->w_height - row)
line_count = wp->w_height - row;
retval = win_do_lines(wp, row, line_count, mayclear, FALSE);
if (retval != MAYBE)
return retval;
/*
* If there is a next window or a status line, we first try to delete the
* lines at the bottom to avoid messing what is after the window.
* If this fails and there are following windows, don't do anything to avoid
* messing up those windows, better just redraw.
*/
did_delete = FALSE;
#ifdef FEAT_WINDOWS
if (wp->w_next != NULL || wp->w_status_height)
{
if (screen_del_lines(0, W_WINROW(wp) + wp->w_height - line_count,
line_count, (int)Rows, FALSE, NULL) == OK)
did_delete = TRUE;
else if (wp->w_next)
return FAIL;
}
#endif
/*
* if no lines deleted, blank the lines that will end up below the window
*/
if (!did_delete)
{
#ifdef FEAT_WINDOWS
wp->w_redr_status = TRUE;
#endif
redraw_cmdline = TRUE;
nextrow = W_WINROW(wp) + wp->w_height + W_STATUS_HEIGHT(wp);
lastrow = nextrow + line_count;
if (lastrow > Rows)
lastrow = Rows;
screen_fill(nextrow - line_count, lastrow - line_count,
W_WINCOL(wp), (int)W_ENDCOL(wp),
' ', ' ', 0);
}
if (screen_ins_lines(0, W_WINROW(wp) + row, line_count, (int)Rows, NULL)
== FAIL)
{
/* deletion will have messed up other windows */
if (did_delete)
{
#ifdef FEAT_WINDOWS
wp->w_redr_status = TRUE;
#endif
win_rest_invalid(W_NEXT(wp));
}
return FAIL;
}
return OK;
}
/*
* delete "line_count" window lines at "row" in window "wp"
* If "invalid" is TRUE curwin->w_lines[] is invalidated.
* If "mayclear" is TRUE the screen will be cleared if it is faster than
* scrolling
* Return OK for success, FAIL if the lines are not deleted.
*/
int
win_del_lines(wp, row, line_count, invalid, mayclear)
win_T *wp;
int row;
int line_count;
int invalid;
int mayclear;
{
int retval;
if (invalid)
wp->w_lines_valid = 0;
if (line_count > wp->w_height - row)
line_count = wp->w_height - row;
retval = win_do_lines(wp, row, line_count, mayclear, TRUE);
if (retval != MAYBE)
return retval;
if (screen_del_lines(0, W_WINROW(wp) + row, line_count,
(int)Rows, FALSE, NULL) == FAIL)
return FAIL;
#ifdef FEAT_WINDOWS
/*
* If there are windows or status lines below, try to put them at the
* correct place. If we can't do that, they have to be redrawn.
*/
if (wp->w_next || wp->w_status_height || cmdline_row < Rows - 1)
{
if (screen_ins_lines(0, W_WINROW(wp) + wp->w_height - line_count,
line_count, (int)Rows, NULL) == FAIL)
{
wp->w_redr_status = TRUE;
win_rest_invalid(wp->w_next);
}
}
/*
* If this is the last window and there is no status line, redraw the
* command line later.
*/
else
#endif
redraw_cmdline = TRUE;
return OK;
}
/*
* Common code for win_ins_lines() and win_del_lines().
* Returns OK or FAIL when the work has been done.
* Returns MAYBE when not finished yet.
*/
static int
win_do_lines(wp, row, line_count, mayclear, del)
win_T *wp;
int row;
int line_count;
int mayclear;
int del;
{
int retval;
if (!redrawing() || line_count <= 0)
return FAIL;
/* only a few lines left: redraw is faster */
if (mayclear && Rows - line_count < 5
#ifdef FEAT_VERTSPLIT
&& wp->w_width == Columns
#endif
)
{
screenclear(); /* will set wp->w_lines_valid to 0 */
return FAIL;
}
/*
* Delete all remaining lines
*/
if (row + line_count >= wp->w_height)
{
screen_fill(W_WINROW(wp) + row, W_WINROW(wp) + wp->w_height,
W_WINCOL(wp), (int)W_ENDCOL(wp),
' ', ' ', 0);
return OK;
}
/*
* when scrolling, the message on the command line should be cleared,
* otherwise it will stay there forever.
*/
clear_cmdline = TRUE;
/*
* If the terminal can set a scroll region, use that.
* Always do this in a vertically split window. This will redraw from
* ScreenLines[] when t_CV isn't defined. That's faster than using
* win_line().
* Don't use a scroll region when we are going to redraw the text, writing
* a character in the lower right corner of the scroll region causes a
* scroll-up in the DJGPP version.
*/
if (scroll_region
#ifdef FEAT_VERTSPLIT
|| W_WIDTH(wp) != Columns
#endif
)
{
#ifdef FEAT_VERTSPLIT
if (scroll_region && (wp->w_width == Columns || *T_CSV != NUL))
#endif
scroll_region_set(wp, row);
if (del)
retval = screen_del_lines(W_WINROW(wp) + row, 0, line_count,
wp->w_height - row, FALSE, wp);
else
retval = screen_ins_lines(W_WINROW(wp) + row, 0, line_count,
wp->w_height - row, wp);
#ifdef FEAT_VERTSPLIT
if (scroll_region && (wp->w_width == Columns || *T_CSV != NUL))
#endif
scroll_region_reset();
return retval;
}
#ifdef FEAT_WINDOWS
if (wp->w_next != NULL && p_tf) /* don't delete/insert on fast terminal */
return FAIL;
#endif
return MAYBE;
}
/*
* window 'wp' and everything after it is messed up, mark it for redraw
*/
static void
win_rest_invalid(wp)
win_T *wp;
{
#ifdef FEAT_WINDOWS
while (wp != NULL)
#else
if (wp != NULL)
#endif
{
redraw_win_later(wp, NOT_VALID);
#ifdef FEAT_WINDOWS
wp->w_redr_status = TRUE;
wp = wp->w_next;
#endif
}
redraw_cmdline = TRUE;
}
/*
* The rest of the routines in this file perform screen manipulations. The
* given operation is performed physically on the screen. The corresponding
* change is also made to the internal screen image. In this way, the editor
* anticipates the effect of editing changes on the appearance of the screen.
* That way, when we call screenupdate a complete redraw isn't usually
* necessary. Another advantage is that we can keep adding code to anticipate
* screen changes, and in the meantime, everything still works.
*/
/*
* types for inserting or deleting lines
*/
#define USE_T_CAL 1
#define USE_T_CDL 2
#define USE_T_AL 3
#define USE_T_CE 4
#define USE_T_DL 5
#define USE_T_SR 6
#define USE_NL 7
#define USE_T_CD 8
#define USE_REDRAW 9
/*
* insert lines on the screen and update ScreenLines[]
* 'end' is the line after the scrolled part. Normally it is Rows.
* When scrolling region used 'off' is the offset from the top for the region.
* 'row' and 'end' are relative to the start of the region.
*
* return FAIL for failure, OK for success.
*/
int
screen_ins_lines(off, row, line_count, end, wp)
int off;
int row;
int line_count;
int end;
win_T *wp; /* NULL or window to use width from */
{
int i;
int j;
unsigned temp;
int cursor_row;
int type;
int result_empty;
int can_ce = can_clear(T_CE);
/*
* FAIL if
* - there is no valid screen
* - the screen has to be redrawn completely
* - the line count is less than one
* - the line count is more than 'ttyscroll'
*/
if (!screen_valid(TRUE) || line_count <= 0 || line_count > p_ttyscroll)
return FAIL;
/*
* There are seven ways to insert lines:
* 0. When in a vertically split window and t_CV isn't set, redraw the
* characters from ScreenLines[].
* 1. Use T_CD (clear to end of display) if it exists and the result of
* the insert is just empty lines
* 2. Use T_CAL (insert multiple lines) if it exists and T_AL is not
* present or line_count > 1. It looks better if we do all the inserts
* at once.
* 3. Use T_CDL (delete multiple lines) if it exists and the result of the
* insert is just empty lines and T_CE is not present or line_count >
* 1.
* 4. Use T_AL (insert line) if it exists.
* 5. Use T_CE (erase line) if it exists and the result of the insert is
* just empty lines.
* 6. Use T_DL (delete line) if it exists and the result of the insert is
* just empty lines.
* 7. Use T_SR (scroll reverse) if it exists and inserting at row 0 and
* the 'da' flag is not set or we have clear line capability.
* 8. redraw the characters from ScreenLines[].
*
* Careful: In a hpterm scroll reverse doesn't work as expected, it moves
* the scrollbar for the window. It does have insert line, use that if it
* exists.
*/
result_empty = (row + line_count >= end);
#ifdef FEAT_VERTSPLIT
if (wp != NULL && wp->w_width != Columns && *T_CSV == NUL)
type = USE_REDRAW;
else
#endif
if (can_clear(T_CD) && result_empty)
type = USE_T_CD;
else if (*T_CAL != NUL && (line_count > 1 || *T_AL == NUL))
type = USE_T_CAL;
else if (*T_CDL != NUL && result_empty && (line_count > 1 || !can_ce))
type = USE_T_CDL;
else if (*T_AL != NUL)
type = USE_T_AL;
else if (can_ce && result_empty)
type = USE_T_CE;
else if (*T_DL != NUL && result_empty)
type = USE_T_DL;
else if (*T_SR != NUL && row == 0 && (*T_DA == NUL || can_ce))
type = USE_T_SR;
else
return FAIL;
/*
* For clearing the lines screen_del_lines() is used. This will also take
* care of t_db if necessary.
*/
if (type == USE_T_CD || type == USE_T_CDL ||
type == USE_T_CE || type == USE_T_DL)
return screen_del_lines(off, row, line_count, end, FALSE, wp);
/*
* If text is retained below the screen, first clear or delete as many
* lines at the bottom of the window as are about to be inserted so that
* the deleted lines won't later surface during a screen_del_lines.
*/
if (*T_DB)
screen_del_lines(off, end - line_count, line_count, end, FALSE, wp);
#ifdef FEAT_CLIPBOARD
/* Remove a modeless selection when inserting lines halfway the screen
* or not the full width of the screen. */
if (off + row > 0
# ifdef FEAT_VERTSPLIT
|| (wp != NULL && wp->w_width != Columns)
# endif
)
clip_clear_selection();
else
clip_scroll_selection(-line_count);
#endif
#ifdef FEAT_GUI
/* Don't update the GUI cursor here, ScreenLines[] is invalid until the
* scrolling is actually carried out. */
gui_dont_update_cursor();
#endif
if (*T_CCS != NUL) /* cursor relative to region */
cursor_row = row;
else
cursor_row = row + off;
/*
* Shift LineOffset[] line_count down to reflect the inserted lines.
* Clear the inserted lines in ScreenLines[].
*/
row += off;
end += off;
for (i = 0; i < line_count; ++i)
{
#ifdef FEAT_VERTSPLIT
if (wp != NULL && wp->w_width != Columns)
{
/* need to copy part of a line */
j = end - 1 - i;
while ((j -= line_count) >= row)
linecopy(j + line_count, j, wp);
j += line_count;
if (can_clear((char_u *)" "))
lineclear(LineOffset[j] + wp->w_wincol, wp->w_width);
else
lineinvalid(LineOffset[j] + wp->w_wincol, wp->w_width);
LineWraps[j] = FALSE;
}
else
#endif
{
j = end - 1 - i;
temp = LineOffset[j];
while ((j -= line_count) >= row)
{
LineOffset[j + line_count] = LineOffset[j];
LineWraps[j + line_count] = LineWraps[j];
}
LineOffset[j + line_count] = temp;
LineWraps[j + line_count] = FALSE;
if (can_clear((char_u *)" "))
lineclear(temp, (int)Columns);
else
lineinvalid(temp, (int)Columns);
}
}
screen_stop_highlight();
windgoto(cursor_row, 0);
#ifdef FEAT_VERTSPLIT
/* redraw the characters */
if (type == USE_REDRAW)
redraw_block(row, end, wp);
else
#endif
if (type == USE_T_CAL)
{
term_append_lines(line_count);
screen_start(); /* don't know where cursor is now */
}
else
{
for (i = 0; i < line_count; i++)
{
if (type == USE_T_AL)
{
if (i && cursor_row != 0)
windgoto(cursor_row, 0);
out_str(T_AL);
}
else /* type == USE_T_SR */
out_str(T_SR);
screen_start(); /* don't know where cursor is now */
}
}
/*
* With scroll-reverse and 'da' flag set we need to clear the lines that
* have been scrolled down into the region.
*/
if (type == USE_T_SR && *T_DA)
{
for (i = 0; i < line_count; ++i)
{
windgoto(off + i, 0);
out_str(T_CE);
screen_start(); /* don't know where cursor is now */
}
}
#ifdef FEAT_GUI
gui_can_update_cursor();
if (gui.in_use)
out_flush(); /* always flush after a scroll */
#endif
return OK;
}
/*
* delete lines on the screen and update ScreenLines[]
* 'end' is the line after the scrolled part. Normally it is Rows.
* When scrolling region used 'off' is the offset from the top for the region.
* 'row' and 'end' are relative to the start of the region.
*
* Return OK for success, FAIL if the lines are not deleted.
*/
/*ARGSUSED*/
int
screen_del_lines(off, row, line_count, end, force, wp)
int off;
int row;
int line_count;
int end;
int force; /* even when line_count > p_ttyscroll */
win_T *wp; /* NULL or window to use width from */
{
int j;
int i;
unsigned temp;
int cursor_row;
int cursor_end;
int result_empty; /* result is empty until end of region */
int can_delete; /* deleting line codes can be used */
int type;
/*
* FAIL if
* - there is no valid screen
* - the screen has to be redrawn completely
* - the line count is less than one
* - the line count is more than 'ttyscroll'
*/
if (!screen_valid(TRUE) || line_count <= 0 ||
(!force && line_count > p_ttyscroll))
return FAIL;
/*
* Check if the rest of the current region will become empty.
*/
result_empty = row + line_count >= end;
/*
* We can delete lines only when 'db' flag not set or when 'ce' option
* available.
*/
can_delete = (*T_DB == NUL || can_clear(T_CE));
/*
* There are six ways to delete lines:
* 0. When in a vertically split window and t_CV isn't set, redraw the
* characters from ScreenLines[].
* 1. Use T_CD if it exists and the result is empty.
* 2. Use newlines if row == 0 and count == 1 or T_CDL does not exist.
* 3. Use T_CDL (delete multiple lines) if it exists and line_count > 1 or
* none of the other ways work.
* 4. Use T_CE (erase line) if the result is empty.
* 5. Use T_DL (delete line) if it exists.
* 6. redraw the characters from ScreenLines[].
*/
#ifdef FEAT_VERTSPLIT
if (wp != NULL && wp->w_width != Columns && *T_CSV == NUL)
type = USE_REDRAW;
else
#endif
if (can_clear(T_CD) && result_empty)
type = USE_T_CD;
#if defined(__BEOS__) && defined(BEOS_DR8)
/*
* USE_NL does not seem to work in Terminal of DR8 so we set T_DB="" in
* its internal termcap... this works okay for tests which test *T_DB !=
* NUL. It has the disadvantage that the user cannot use any :set t_*
* command to get T_DB (back) to empty_option, only :set term=... will do
* the trick...
* Anyway, this hack will hopefully go away with the next OS release.
* (Olaf Seibert)
*/
else if (row == 0 && T_DB == empty_option
&& (line_count == 1 || *T_CDL == NUL))
#else
else if (row == 0 && (
#ifndef AMIGA
/* On the Amiga, somehow '\n' on the last line doesn't always scroll
* up, so use delete-line command */
line_count == 1 ||
#endif
*T_CDL == NUL))
#endif
type = USE_NL;
else if (*T_CDL != NUL && line_count > 1 && can_delete)
type = USE_T_CDL;
else if (can_clear(T_CE) && result_empty
#ifdef FEAT_VERTSPLIT
&& (wp == NULL || wp->w_width == Columns)
#endif
)
type = USE_T_CE;
else if (*T_DL != NUL && can_delete)
type = USE_T_DL;
else if (*T_CDL != NUL && can_delete)
type = USE_T_CDL;
else
return FAIL;
#ifdef FEAT_CLIPBOARD
/* Remove a modeless selection when deleting lines halfway the screen or
* not the full width of the screen. */
if (off + row > 0
# ifdef FEAT_VERTSPLIT
|| (wp != NULL && wp->w_width != Columns)
# endif
)
clip_clear_selection();
else
clip_scroll_selection(line_count);
#endif
#ifdef FEAT_GUI
/* Don't update the GUI cursor here, ScreenLines[] is invalid until the
* scrolling is actually carried out. */
gui_dont_update_cursor();
#endif
if (*T_CCS != NUL) /* cursor relative to region */
{
cursor_row = row;
cursor_end = end;
}
else
{
cursor_row = row + off;
cursor_end = end + off;
}
/*
* Now shift LineOffset[] line_count up to reflect the deleted lines.
* Clear the inserted lines in ScreenLines[].
*/
row += off;
end += off;
for (i = 0; i < line_count; ++i)
{
#ifdef FEAT_VERTSPLIT
if (wp != NULL && wp->w_width != Columns)
{
/* need to copy part of a line */
j = row + i;
while ((j += line_count) <= end - 1)
linecopy(j - line_count, j, wp);
j -= line_count;
if (can_clear((char_u *)" "))
lineclear(LineOffset[j] + wp->w_wincol, wp->w_width);
else
lineinvalid(LineOffset[j] + wp->w_wincol, wp->w_width);
LineWraps[j] = FALSE;
}
else
#endif
{
/* whole width, moving the line pointers is faster */
j = row + i;
temp = LineOffset[j];
while ((j += line_count) <= end - 1)
{
LineOffset[j - line_count] = LineOffset[j];
LineWraps[j - line_count] = LineWraps[j];
}
LineOffset[j - line_count] = temp;
LineWraps[j - line_count] = FALSE;
if (can_clear((char_u *)" "))
lineclear(temp, (int)Columns);
else
lineinvalid(temp, (int)Columns);
}
}
screen_stop_highlight();
#ifdef FEAT_VERTSPLIT
/* redraw the characters */
if (type == USE_REDRAW)
redraw_block(row, end, wp);
else
#endif
if (type == USE_T_CD) /* delete the lines */
{
windgoto(cursor_row, 0);
out_str(T_CD);
screen_start(); /* don't know where cursor is now */
}
else if (type == USE_T_CDL)
{
windgoto(cursor_row, 0);
term_delete_lines(line_count);
screen_start(); /* don't know where cursor is now */
}
/*
* Deleting lines at top of the screen or scroll region: Just scroll
* the whole screen (scroll region) up by outputting newlines on the
* last line.
*/
else if (type == USE_NL)
{
windgoto(cursor_end - 1, 0);
for (i = line_count; --i >= 0; )
out_char('\n'); /* cursor will remain on same line */
}
else
{
for (i = line_count; --i >= 0; )
{
if (type == USE_T_DL)
{
windgoto(cursor_row, 0);
out_str(T_DL); /* delete a line */
}
else /* type == USE_T_CE */
{
windgoto(cursor_row + i, 0);
out_str(T_CE); /* erase a line */
}
screen_start(); /* don't know where cursor is now */
}
}
/*
* If the 'db' flag is set, we need to clear the lines that have been
* scrolled up at the bottom of the region.
*/
if (*T_DB && (type == USE_T_DL || type == USE_T_CDL))
{
for (i = line_count; i > 0; --i)
{
windgoto(cursor_end - i, 0);
out_str(T_CE); /* erase a line */
screen_start(); /* don't know where cursor is now */
}
}
#ifdef FEAT_GUI
gui_can_update_cursor();
if (gui.in_use)
out_flush(); /* always flush after a scroll */
#endif
return OK;
}
/*
* show the current mode and ruler
*
* If clear_cmdline is TRUE, clear the rest of the cmdline.
* If clear_cmdline is FALSE there may be a message there that needs to be
* cleared only if a mode is shown.
* Return the length of the message (0 if no message).
*/
int
showmode()
{
int need_clear;
int length = 0;
int do_mode;
int attr;
int nwr_save;
#ifdef FEAT_INS_EXPAND
int sub_attr;
#endif
do_mode = ((p_smd && msg_silent == 0)
&& ((State & INSERT)
|| restart_edit
#ifdef FEAT_VISUAL
|| VIsual_active
#endif
));
if (do_mode || Recording)
{
/*
* Don't show mode right now, when not redrawing or inside a mapping.
* Call char_avail() only when we are going to show something, because
* it takes a bit of time.
*/
if (!redrawing() || (char_avail() && !KeyTyped) || msg_silent != 0)
{
redraw_cmdline = TRUE; /* show mode later */
return 0;
}
nwr_save = need_wait_return;
/* wait a bit before overwriting an important message */
check_for_delay(FALSE);
/* if the cmdline is more than one line high, erase top lines */
need_clear = clear_cmdline;
if (clear_cmdline && cmdline_row < Rows - 1)
msg_clr_cmdline(); /* will reset clear_cmdline */
/* Position on the last line in the window, column 0 */
msg_pos_mode();
cursor_off();
attr = hl_attr(HLF_CM); /* Highlight mode */
if (do_mode)
{
MSG_PUTS_ATTR("--", attr);
#if defined(FEAT_XIM)
if (xic != NULL && im_get_status() && !p_imdisable
&& curbuf->b_p_iminsert == B_IMODE_IM)
# ifdef HAVE_GTK2 /* most of the time, it's not XIM being used */
MSG_PUTS_ATTR(" IM", attr);
# else
MSG_PUTS_ATTR(" XIM", attr);
# endif
#endif
#if defined(FEAT_HANGULIN) && defined(FEAT_GUI)
if (gui.in_use)
{
if (hangul_input_state_get())
MSG_PUTS_ATTR(" \307\321\261\333", attr); /* HANGUL */
}
#endif
#ifdef FEAT_INS_EXPAND
if (edit_submode != NULL) /* CTRL-X in Insert mode */
{
/* These messages can get long, avoid a wrap in a narrow
* window. Prefer showing edit_submode_extra. */
length = (Rows - msg_row) * Columns - 3;
if (edit_submode_extra != NULL)
length -= vim_strsize(edit_submode_extra);
if (length > 0)
{
if (edit_submode_pre != NULL)
length -= vim_strsize(edit_submode_pre);
if (length - vim_strsize(edit_submode) > 0)
{
if (edit_submode_pre != NULL)
msg_puts_attr(edit_submode_pre, attr);
msg_puts_attr(edit_submode, attr);
}
if (edit_submode_extra != NULL)
{
MSG_PUTS_ATTR(" ", attr); /* add a space in between */
if ((int)edit_submode_highl < (int)HLF_COUNT)
sub_attr = hl_attr(edit_submode_highl);
else
sub_attr = attr;
msg_puts_attr(edit_submode_extra, sub_attr);
}
}
length = 0;
}
else
#endif
{
#ifdef FEAT_VREPLACE
if (State & VREPLACE_FLAG)
MSG_PUTS_ATTR(_(" VREPLACE"), attr);
else
#endif
if (State & REPLACE_FLAG)
MSG_PUTS_ATTR(_(" REPLACE"), attr);
else if (State & INSERT)
{
#ifdef FEAT_RIGHTLEFT
if (p_ri)
MSG_PUTS_ATTR(_(" REVERSE"), attr);
#endif
MSG_PUTS_ATTR(_(" INSERT"), attr);
}
else if (restart_edit == 'I')
MSG_PUTS_ATTR(_(" (insert)"), attr);
else if (restart_edit == 'R')
MSG_PUTS_ATTR(_(" (replace)"), attr);
else if (restart_edit == 'V')
MSG_PUTS_ATTR(_(" (vreplace)"), attr);
#ifdef FEAT_RIGHTLEFT
if (p_hkmap)
MSG_PUTS_ATTR(_(" Hebrew"), attr);
# ifdef FEAT_FKMAP
if (p_fkmap)
MSG_PUTS_ATTR(farsi_text_5, attr);
# endif
#endif
#ifdef FEAT_KEYMAP
if (State & LANGMAP)
{
# ifdef FEAT_ARABIC
if (curwin->w_p_arab)
MSG_PUTS_ATTR(_(" Arabic"), attr);
else
# endif
MSG_PUTS_ATTR(_(" (lang)"), attr);
}
#endif
if ((State & INSERT) && p_paste)
MSG_PUTS_ATTR(_(" (paste)"), attr);
#ifdef FEAT_VISUAL
if (VIsual_active)
{
char *p;
/* Don't concatenate separate words to avoid translation
* problems. */
switch ((VIsual_select ? 4 : 0)
+ (VIsual_mode == Ctrl_V) * 2
+ (VIsual_mode == 'V'))
{
case 0: p = N_(" VISUAL"); break;
case 1: p = N_(" VISUAL LINE"); break;
case 2: p = N_(" VISUAL BLOCK"); break;
case 4: p = N_(" SELECT"); break;
case 5: p = N_(" SELECT LINE"); break;
default: p = N_(" SELECT BLOCK"); break;
}
MSG_PUTS_ATTR(_(p), attr);
}
#endif
MSG_PUTS_ATTR(" --", attr);
}
need_clear = TRUE;
}
if (Recording
#ifdef FEAT_INS_EXPAND
&& edit_submode == NULL /* otherwise it gets too long */
#endif
)
{
MSG_PUTS_ATTR(_("recording"), attr);
need_clear = TRUE;
}
mode_displayed = TRUE;
if (need_clear || clear_cmdline)
msg_clr_eos();
msg_didout = FALSE; /* overwrite this message */
length = msg_col;
msg_col = 0;
need_wait_return = nwr_save; /* never ask for hit-return for this */
}
else if (clear_cmdline && msg_silent == 0)
/* Clear the whole command line. Will reset "clear_cmdline". */
msg_clr_cmdline();
#ifdef FEAT_CMDL_INFO
# ifdef FEAT_VISUAL
/* In Visual mode the size of the selected area must be redrawn. */
if (VIsual_active)
clear_showcmd();
# endif
/* If the last window has no status line, the ruler is after the mode
* message and must be redrawn */
if (redrawing()
# ifdef FEAT_WINDOWS
&& lastwin->w_status_height == 0
# endif
)
win_redr_ruler(lastwin, TRUE);
#endif
redraw_cmdline = FALSE;
clear_cmdline = FALSE;
return length;
}
/*
* Position for a mode message.
*/
static void
msg_pos_mode()
{
msg_col = 0;
msg_row = Rows - 1;
}
/*
* Delete mode message. Used when ESC is typed which is expected to end
* Insert mode (but Insert mode didn't end yet!).
* Caller should check "mode_displayed".
*/
void
unshowmode(force)
int force;
{
/*
* Don't delete it right now, when not redrawing or insided a mapping.
*/
if (!redrawing() || (!force && char_avail() && !KeyTyped))
redraw_cmdline = TRUE; /* delete mode later */
else
{
msg_pos_mode();
if (Recording)
MSG_PUTS_ATTR(_("recording"), hl_attr(HLF_CM));
msg_clr_eos();
}
}
#if defined(FEAT_WINDOWS)
/*
* Draw the tab pages line at the top of the Vim window.
*/
static void
draw_tabline()
{
int tabcount = 0;
tabpage_T *tp;
int tabwidth;
int col = 0;
int scol = 0;
int attr;
win_T *wp;
win_T *cwp;
int wincount;
int modified;
int c;
int len;
int attr_sel = hl_attr(HLF_TPS);
int attr_nosel = hl_attr(HLF_TP);
int attr_fill = hl_attr(HLF_TPF);
char_u *p;
int room;
int use_sep_chars = (t_colors < 8
#ifdef FEAT_GUI
&& !gui.in_use
#endif
);
redraw_tabline = FALSE;
#ifdef FEAT_GUI_TABLINE
/* Take care of a GUI tabline. */
if (gui_use_tabline())
{
gui_update_tabline();
return;
}
#endif
if (tabline_height() < 1)
return;
#if defined(FEAT_STL_OPT)
/* Init TabPageIdxs[] to zero: Clicking outside of tabs has no effect. */
for (scol = 0; scol < Columns; ++scol)
TabPageIdxs[scol] = 0;
/* Use the 'tabline' option if it's set. */
if (*p_tal != NUL)
{
int save_called_emsg = called_emsg;
/* Check for an error. If there is one we would loop in redrawing the
* screen. Avoid that by making 'tabline' empty. */
called_emsg = FALSE;
win_redr_custom(NULL, FALSE);
if (called_emsg)
set_string_option_direct((char_u *)"tabline", -1,
(char_u *)"", OPT_FREE, SID_ERROR);
called_emsg |= save_called_emsg;
}
else
#endif
{
for (tp = first_tabpage; tp != NULL; tp = tp->tp_next)
++tabcount;
tabwidth = (Columns - 1 + tabcount / 2) / tabcount;
if (tabwidth < 6)
tabwidth = 6;
attr = attr_nosel;
tabcount = 0;
scol = 0;
for (tp = first_tabpage; tp != NULL && col < Columns - 4;
tp = tp->tp_next)
{
scol = col;
if (tp->tp_topframe == topframe)
attr = attr_sel;
if (use_sep_chars && col > 0)
screen_putchar('|', 0, col++, attr);
if (tp->tp_topframe != topframe)
attr = attr_nosel;
screen_putchar(' ', 0, col++, attr);
if (tp == curtab)
{
cwp = curwin;
wp = firstwin;
}
else
{
cwp = tp->tp_curwin;
wp = tp->tp_firstwin;
}
modified = FALSE;
for (wincount = 0; wp != NULL; wp = wp->w_next, ++wincount)
if (bufIsChanged(wp->w_buffer))
modified = TRUE;
if (modified || wincount > 1)
{
if (wincount > 1)
{
vim_snprintf((char *)NameBuff, MAXPATHL, "%d", wincount);
len = (int)STRLEN(NameBuff);
if (col + len >= Columns - 3)
break;
screen_puts_len(NameBuff, len, 0, col,
#if defined(FEAT_SYN_HL)
hl_combine_attr(attr, hl_attr(HLF_T))
#else
attr
#endif
);
col += len;
}
if (modified)
screen_puts_len((char_u *)"+", 1, 0, col++, attr);
screen_putchar(' ', 0, col++, attr);
}
room = scol - col + tabwidth - 1;
if (room > 0)
{
/* Get buffer name in NameBuff[] */
get_trans_bufname(cwp->w_buffer);
shorten_dir(NameBuff);
len = vim_strsize(NameBuff);
p = NameBuff;
#ifdef FEAT_MBYTE
if (has_mbyte)
while (len > room)
{
len -= ptr2cells(p);
mb_ptr_adv(p);
}
else
#endif
if (len > room)
{
p += len - room;
len = room;
}
if (len > Columns - col - 1)
len = Columns - col - 1;
screen_puts_len(p, (int)STRLEN(p), 0, col, attr);
col += len;
}
screen_putchar(' ', 0, col++, attr);
/* Store the tab page number in TabPageIdxs[], so that
* jump_to_mouse() knows where each one is. */
++tabcount;
while (scol < col)
TabPageIdxs[scol++] = tabcount;
}
if (use_sep_chars)
c = '_';
else
c = ' ';
screen_fill(0, 1, col, (int)Columns, c, c, attr_fill);
/* Put an "X" for closing the current tab if there are several. */
if (first_tabpage->tp_next != NULL)
{
screen_putchar('X', 0, (int)Columns - 1, attr_nosel);
TabPageIdxs[Columns - 1] = -999;
}
}
/* Reset the flag here again, in case evaluating 'tabline' causes it to be
* set. */
redraw_tabline = FALSE;
}
/*
* Get buffer name for "buf" into NameBuff[].
* Takes care of special buffer names and translates special characters.
*/
void
get_trans_bufname(buf)
buf_T *buf;
{
if (buf_spname(buf) != NULL)
STRCPY(NameBuff, buf_spname(buf));
else
home_replace(buf, buf->b_fname, NameBuff, MAXPATHL, TRUE);
trans_characters(NameBuff, MAXPATHL);
}
#endif
#if defined(FEAT_WINDOWS) || defined(FEAT_WILDMENU) || defined(FEAT_STL_OPT)
/*
* Get the character to use in a status line. Get its attributes in "*attr".
*/
static int
fillchar_status(attr, is_curwin)
int *attr;
int is_curwin;
{
int fill;
if (is_curwin)
{
*attr = hl_attr(HLF_S);
fill = fill_stl;
}
else
{
*attr = hl_attr(HLF_SNC);
fill = fill_stlnc;
}
/* Use fill when there is highlighting, and highlighting of current
* window differs, or the fillchars differ, or this is not the
* current window */
if (*attr != 0 && ((hl_attr(HLF_S) != hl_attr(HLF_SNC)
|| !is_curwin || firstwin == lastwin)
|| (fill_stl != fill_stlnc)))
return fill;
if (is_curwin)
return '^';
return '=';
}
#endif
#ifdef FEAT_VERTSPLIT
/*
* Get the character to use in a separator between vertically split windows.
* Get its attributes in "*attr".
*/
static int
fillchar_vsep(attr)
int *attr;
{
*attr = hl_attr(HLF_C);
if (*attr == 0 && fill_vert == ' ')
return '|';
else
return fill_vert;
}
#endif
/*
* Return TRUE if redrawing should currently be done.
*/
int
redrawing()
{
return (!RedrawingDisabled
&& !(p_lz && char_avail() && !KeyTyped && !do_redraw));
}
/*
* Return TRUE if printing messages should currently be done.
*/
int
messaging()
{
return (!(p_lz && char_avail() && !KeyTyped));
}
/*
* Show current status info in ruler and various other places
* If always is FALSE, only show ruler if position has changed.
*/
void
showruler(always)
int always;
{
if (!always && !redrawing())
return;
#ifdef FEAT_INS_EXPAND
if (pum_visible())
{
# ifdef FEAT_WINDOWS
/* Don't redraw right now, do it later. */
curwin->w_redr_status = TRUE;
# endif
return;
}
#endif
#if defined(FEAT_STL_OPT) && defined(FEAT_WINDOWS)
if ((*p_stl != NUL || *curwin->w_p_stl != NUL) && curwin->w_status_height)
{
redraw_custum_statusline(curwin);
}
else
#endif
#ifdef FEAT_CMDL_INFO
win_redr_ruler(curwin, always);
#endif
#ifdef FEAT_TITLE
if (need_maketitle
# ifdef FEAT_STL_OPT
|| (p_icon && (stl_syntax & STL_IN_ICON))
|| (p_title && (stl_syntax & STL_IN_TITLE))
# endif
)
maketitle();
#endif
}
#ifdef FEAT_CMDL_INFO
static void
win_redr_ruler(wp, always)
win_T *wp;
int always;
{
char_u buffer[70];
int row;
int fillchar;
int attr;
int empty_line = FALSE;
colnr_T virtcol;
int i;
int o;
#ifdef FEAT_VERTSPLIT
int this_ru_col;
int off = 0;
int width = Columns;
# define WITH_OFF(x) x
# define WITH_WIDTH(x) x
#else
# define WITH_OFF(x) 0
# define WITH_WIDTH(x) Columns
# define this_ru_col ru_col
#endif
/* If 'ruler' off or redrawing disabled, don't do anything */
if (!p_ru)
return;
/*
* Check if cursor.lnum is valid, since win_redr_ruler() may be called
* after deleting lines, before cursor.lnum is corrected.
*/
if (wp->w_cursor.lnum > wp->w_buffer->b_ml.ml_line_count)
return;
#ifdef FEAT_INS_EXPAND
/* Don't draw the ruler while doing insert-completion, it might overwrite
* the (long) mode message. */
# ifdef FEAT_WINDOWS
if (wp == lastwin && lastwin->w_status_height == 0)
# endif
if (edit_submode != NULL)
return;
/* Don't draw the ruler when the popup menu is visible, it may overlap. */
if (pum_visible())
return;
#endif
#ifdef FEAT_STL_OPT
if (*p_ruf)
{
int save_called_emsg = called_emsg;
called_emsg = FALSE;
win_redr_custom(wp, TRUE);
if (called_emsg)
set_string_option_direct((char_u *)"rulerformat", -1,
(char_u *)"", OPT_FREE, SID_ERROR);
called_emsg |= save_called_emsg;
return;
}
#endif
/*
* Check if not in Insert mode and the line is empty (will show "0-1").
*/
if (!(State & INSERT)
&& *ml_get_buf(wp->w_buffer, wp->w_cursor.lnum, FALSE) == NUL)
empty_line = TRUE;
/*
* Only draw the ruler when something changed.
*/
validate_virtcol_win(wp);
if ( redraw_cmdline
|| always
|| wp->w_cursor.lnum != wp->w_ru_cursor.lnum
|| wp->w_cursor.col != wp->w_ru_cursor.col
|| wp->w_virtcol != wp->w_ru_virtcol
#ifdef FEAT_VIRTUALEDIT
|| wp->w_cursor.coladd != wp->w_ru_cursor.coladd
#endif
|| wp->w_topline != wp->w_ru_topline
|| wp->w_buffer->b_ml.ml_line_count != wp->w_ru_line_count
#ifdef FEAT_DIFF
|| wp->w_topfill != wp->w_ru_topfill
#endif
|| empty_line != wp->w_ru_empty)
{
cursor_off();
#ifdef FEAT_WINDOWS
if (wp->w_status_height)
{
row = W_WINROW(wp) + wp->w_height;
fillchar = fillchar_status(&attr, wp == curwin);
# ifdef FEAT_VERTSPLIT
off = W_WINCOL(wp);
width = W_WIDTH(wp);
# endif
}
else
#endif
{
row = Rows - 1;
fillchar = ' ';
attr = 0;
#ifdef FEAT_VERTSPLIT
width = Columns;
off = 0;
#endif
}
/* In list mode virtcol needs to be recomputed */
virtcol = wp->w_virtcol;
if (wp->w_p_list && lcs_tab1 == NUL)
{
wp->w_p_list = FALSE;
getvvcol(wp, &wp->w_cursor, NULL, &virtcol, NULL);
wp->w_p_list = TRUE;
}
/*
* Some sprintfs return the length, some return a pointer.
* To avoid portability problems we use strlen() here.
*/
sprintf((char *)buffer, "%ld,",
(wp->w_buffer->b_ml.ml_flags & ML_EMPTY)
? 0L
: (long)(wp->w_cursor.lnum));
col_print(buffer + STRLEN(buffer),
empty_line ? 0 : (int)wp->w_cursor.col + 1,
(int)virtcol + 1);
/*
* Add a "50%" if there is room for it.
* On the last line, don't print in the last column (scrolls the
* screen up on some terminals).
*/
i = (int)STRLEN(buffer);
get_rel_pos(wp, buffer + i + 1);
o = i + vim_strsize(buffer + i + 1);
#ifdef FEAT_WINDOWS
if (wp->w_status_height == 0) /* can't use last char of screen */
#endif
++o;
#ifdef FEAT_VERTSPLIT
this_ru_col = ru_col - (Columns - width);
if (this_ru_col < 0)
this_ru_col = 0;
#endif
/* Never use more than half the window/screen width, leave the other
* half for the filename. */
if (this_ru_col < (WITH_WIDTH(width) + 1) / 2)
this_ru_col = (WITH_WIDTH(width) + 1) / 2;
if (this_ru_col + o < WITH_WIDTH(width))
{
while (this_ru_col + o < WITH_WIDTH(width))
{
#ifdef FEAT_MBYTE
if (has_mbyte)
i += (*mb_char2bytes)(fillchar, buffer + i);
else
#endif
buffer[i++] = fillchar;
++o;
}
get_rel_pos(wp, buffer + i);
}
/* Truncate at window boundary. */
#ifdef FEAT_MBYTE
if (has_mbyte)
{
o = 0;
for (i = 0; buffer[i] != NUL; i += (*mb_ptr2len)(buffer + i))
{
o += (*mb_ptr2cells)(buffer + i);
if (this_ru_col + o > WITH_WIDTH(width))
{
buffer[i] = NUL;
break;
}
}
}
else
#endif
if (this_ru_col + (int)STRLEN(buffer) > WITH_WIDTH(width))
buffer[WITH_WIDTH(width) - this_ru_col] = NUL;
screen_puts(buffer, row, this_ru_col + WITH_OFF(off), attr);
i = redraw_cmdline;
screen_fill(row, row + 1,
this_ru_col + WITH_OFF(off) + (int)STRLEN(buffer),
(int)(WITH_OFF(off) + WITH_WIDTH(width)),
fillchar, fillchar, attr);
/* don't redraw the cmdline because of showing the ruler */
redraw_cmdline = i;
wp->w_ru_cursor = wp->w_cursor;
wp->w_ru_virtcol = wp->w_virtcol;
wp->w_ru_empty = empty_line;
wp->w_ru_topline = wp->w_topline;
wp->w_ru_line_count = wp->w_buffer->b_ml.ml_line_count;
#ifdef FEAT_DIFF
wp->w_ru_topfill = wp->w_topfill;
#endif
}
}
#endif
#if defined(FEAT_LINEBREAK) || defined(PROTO)
/*
* Return the width of the 'number' column.
* Caller may need to check if 'number' is set.
* Otherwise it depends on 'numberwidth' and the line count.
*/
int
number_width(wp)
win_T *wp;
{
int n;
linenr_T lnum;
lnum = wp->w_buffer->b_ml.ml_line_count;
if (lnum == wp->w_nrwidth_line_count)
return wp->w_nrwidth_width;
wp->w_nrwidth_line_count = lnum;
n = 0;
do
{
lnum /= 10;
++n;
} while (lnum > 0);
/* 'numberwidth' gives the minimal width plus one */
if (n < wp->w_p_nuw - 1)
n = wp->w_p_nuw - 1;
wp->w_nrwidth_width = n;
return n;
}
#endif