wvline_set(WINDOW *win, const cchar_t * ch, int n)
{
int code = ERR;
NCURSES_SIZE_T row, col;
NCURSES_SIZE_T end;
T((T_CALLED("wvline(%p,%s,%d)"), win, _tracecchar_t(ch), n));
if (win) {
NCURSES_CH_T wch;
row = win->_cury;
col = win->_curx;
end = row + n - 1;
if (end > win->_maxy)
end = win->_maxy;
if (ch == 0)
wch = *WACS_VLINE;
else
wch = *ch;
wch = _nc_render(win, wch);
while (end >= row) {
struct ldat *line = &(win->_line[end]);
line->text[col] = wch;
CHANGED_CELL(line, col);
end--;
}
_nc_synchook(win);
code = OK;
}
returnCode(code);
}
static
#if !USE_WIDEC_SUPPORT /* cannot be inline if it is recursive */
NCURSES_INLINE
#endif
int
waddch_literal(WINDOW *win, NCURSES_CH_T ch)
{
int x;
int y;
struct ldat *line;
x = win->_curx;
y = win->_cury;
CHECK_POSITION(win, x, y);
ch = render_char(win, ch);
line = win->_line + y;
CHANGED_CELL(line, x);
/*
* Build up multibyte characters until we have a wide-character.
*/
if_WIDEC({
if (WINDOW_EXT(win, addch_used) != 0 || !Charable(ch)) {
int len = _nc_build_wch(win, CHREF(ch));
if (len >= -1) {
/* handle EILSEQ */
if (is8bits(CharOf(ch))) {
const char *s = unctrl((chtype) CharOf(ch));
if (s[1] != 0) {
return waddstr(win, s);
}
}
if (len == -1)
return waddch(win, ' ');
} else {
return OK;
}
}
});
static int
wadd_wch_literal(WINDOW *win, cchar_t ch)
{
int x;
int y;
struct ldat *line;
x = win->_curx;
y = win->_cury;
CHECK_POSITION(win, x, y);
ch = render_char(win, ch);
line = win->_line + y;
CHANGED_CELL(line, x);
/*
* Non-spacing characters are added to the current cell.
*
* Spacing characters that are wider than one column require some display
* adjustments.
*/
{
int len = wcwidth(CharOf(ch));
int i;
int j;
wchar_t *chars;
if (len == 0) { /* non-spacing */
if ((x > 0 && y >= 0)
|| (win->_maxx >= 0 && win->_cury >= 1)) {
if (x > 0 && y >= 0)
chars = (win->_line[y].text[x - 1].chars);
else
chars = (win->_line[y - 1].text[win->_maxx].chars);
for (i = 0; i < CCHARW_MAX; ++i) {
if (chars[i] == 0) {
TR(TRACE_VIRTPUT,
("added non-spacing %d: %x",
x, (int) CharOf(ch)));
chars[i] = CharOf(ch);
break;
}
}
}
goto testwrapping;
} else if (len > 1) { /* multi-column characters */
/*
* Check if the character will fit on the current line. If it does
* not fit, fill in the remainder of the line with blanks. and
* move to the next line.
*/
if (len > win->_maxx + 1) {
TR(TRACE_VIRTPUT, ("character will not fit"));
return ERR;
} else if (x + len > win->_maxx + 1) {
int count = win->_maxx + 1 - x;
TR(TRACE_VIRTPUT, ("fill %d remaining cells", count));
fill_cells(win, count);
if (wrap_to_next_line(win) == ERR)
return ERR;
x = win->_curx;
y = win->_cury;
line = win->_line + y;
}
/*
* Check for cells which are orphaned by adding this character, set
* those to blanks.
*
* FIXME: this actually could fill j-i cells, more complicated to
* setup though.
*/
for (i = 0; i < len; ++i) {
if (isWidecBase(win->_line[y].text[x + i])) {
break;
} else if (isWidecExt(win->_line[y].text[x + i])) {
for (j = i; x + j <= win->_maxx; ++j) {
if (!isWidecExt(win->_line[y].text[x + j])) {
TR(TRACE_VIRTPUT, ("fill %d orphan cells", j));
fill_cells(win, j);
break;
}
}
break;
}
}
/*
* Finally, add the cells for this character.
*/
for (i = 0; i < len; ++i) {
cchar_t value = ch;
SetWidecExt(value, i);
TR(TRACE_VIRTPUT, ("multicolumn %d:%d (%d,%d)",
i + 1, len,
win->_begy + y, win->_begx + x));
line->text[x] = value;
CHANGED_CELL(line, x);
++x;
}
goto testwrapping;
}
}
/*
* Single-column characters.
*/
line->text[x++] = ch;
/*
* This label is used only for wide-characters.
*/
testwrapping:
TR(TRACE_VIRTPUT, ("cell (%ld, %ld..%d) = %s",
(long) win->_cury, (long) win->_curx, x - 1,
_tracech_t(CHREF(ch))));
if (x > win->_maxx) {
return wrap_to_next_line(win);
}
win->_curx = (NCURSES_SIZE_T) x;
return OK;
}
pnoutrefresh(WINDOW *win,
int pminrow,
int pmincol,
int sminrow,
int smincol,
int smaxrow,
int smaxcol)
{
NCURSES_SIZE_T i, j;
NCURSES_SIZE_T m, n;
NCURSES_SIZE_T pmaxrow;
NCURSES_SIZE_T pmaxcol;
SCREEN *sp;
#if USE_SCROLL_HINTS
const int my_len = 2; /* parameterize the threshold for hardscroll */
NCURSES_SIZE_T displaced;
bool wide;
#endif
T((T_CALLED("pnoutrefresh(%p, %d, %d, %d, %d, %d, %d)"),
(void *) win, pminrow, pmincol, sminrow, smincol, smaxrow, smaxcol));
if (win == 0)
returnCode(ERR);
if (!(win->_flags & _ISPAD))
returnCode(ERR);
sp = _nc_screen_of(win);
/* negative values are interpreted as zero */
if (pminrow < 0)
pminrow = 0;
if (pmincol < 0)
pmincol = 0;
if (sminrow < 0)
sminrow = 0;
if (smincol < 0)
smincol = 0;
pmaxrow = pminrow + smaxrow - sminrow;
pmaxcol = pmincol + smaxcol - smincol;
T((" pminrow + smaxrow - sminrow %ld, win->_maxy %ld",
(long) pmaxrow, (long) win->_maxy));
T((" pmincol + smaxcol - smincol %ld, win->_maxx %ld",
(long) pmaxcol, (long) win->_maxx));
/*
* Trim the caller's screen size back to the actual limits.
*/
if (pmaxrow > win->_maxy) {
smaxrow -= (pmaxrow - win->_maxy);
pmaxrow = pminrow + smaxrow - sminrow;
}
if (pmaxcol > win->_maxx) {
smaxcol -= (pmaxcol - win->_maxx);
pmaxcol = pmincol + smaxcol - smincol;
}
if (smaxrow >= screen_lines(sp)
|| smaxcol >= screen_columns(sp)
|| sminrow > smaxrow
|| smincol > smaxcol)
returnCode(ERR);
T(("pad being refreshed"));
#if USE_SCROLL_HINTS
if (win->_pad._pad_y >= 0) {
displaced = pminrow - win->_pad._pad_y
- (sminrow - win->_pad._pad_top);
T(("pad being shifted by %d line(s)", displaced));
} else
displaced = 0;
#endif
/*
* For pure efficiency, we'd want to transfer scrolling information
* from the pad to newscr whenever the window is wide enough that
* its update will dominate the cost of the update for the horizontal
* band of newscr that it occupies. Unfortunately, this threshold
* tends to be complex to estimate, and in any case scrolling the
* whole band and rewriting the parts outside win's image would look
* really ugly. So. What we do is consider the pad "wide" if it
* either (a) occupies the whole width of newscr, or (b) occupies
* all but at most one column on either vertical edge of the screen
* (this caters to fussy people who put boxes around full-screen
* windows). Note that changing this formula will not break any code,
* merely change the costs of various update cases.
*/
#if USE_SCROLL_HINTS
wide = (smincol < my_len && smaxcol > (NewScreen(sp)->_maxx - my_len));
#endif
for (i = pminrow, m = sminrow + win->_yoffset;
i <= pmaxrow && m <= NewScreen(sp)->_maxy;
i++, m++) {
register struct ldat *nline = &NewScreen(sp)->_line[m];
register struct ldat *oline = &win->_line[i];
for (j = pmincol, n = smincol; j <= pmaxcol; j++, n++) {
NCURSES_CH_T ch = oline->text[j];
#if USE_WIDEC_SUPPORT
/*
* Special case for leftmost character of the displayed area.
* Only half of a double-width character may be visible.
*/
if (j == pmincol
&& j > 0
&& isWidecExt(ch)) {
SetChar(ch, L(' '), AttrOf(oline->text[j - 1]));
}
#endif
if (!CharEq(ch, nline->text[n])) {
nline->text[n] = ch;
CHANGED_CELL(nline, n);
}
}
#if USE_SCROLL_HINTS
if (wide) {
int nind = m + displaced;
if (oline->oldindex < 0
|| nind < sminrow
|| nind > smaxrow) {
nind = _NEWINDEX;
} else if (displaced) {
register struct ldat *pline = &CurScreen(sp)->_line[nind];
for (j = 0; j <= my_len; j++) {
int k = NewScreen(sp)->_maxx - j;
if (pline->text[j] != nline->text[j]
|| pline->text[k] != nline->text[k]) {
nind = _NEWINDEX;
break;
}
}
}
nline->oldindex = nind;
}
#endif /* USE_SCROLL_HINTS */
oline->firstchar = oline->lastchar = _NOCHANGE;
if_USE_SCROLL_HINTS(oline->oldindex = i);
}
/*
* Clean up debris from scrolling or resizing the pad, so we do not
* accidentally pick up the index value during the next call to this
* procedure. The only rows that should have an index value are those
* that are displayed during this cycle.
*/
#if USE_SCROLL_HINTS
for (i = pminrow - 1; (i >= 0) && (win->_line[i].oldindex >= 0); i--)
win->_line[i].oldindex = _NEWINDEX;
for (i = pmaxrow + 1; (i <= win->_maxy)
&& (win->_line[i].oldindex >= 0); i++)
win->_line[i].oldindex = _NEWINDEX;
#endif
win->_begx = smincol;
win->_begy = sminrow;
if (win->_clear) {
win->_clear = FALSE;
NewScreen(sp)->_clear = TRUE;
}
/*
* Use the pad's current position, if it will be visible.
* If not, don't do anything; it's not an error.
*/
if (win->_leaveok == FALSE
&& win->_cury >= pminrow
&& win->_curx >= pmincol
&& win->_cury <= pmaxrow
&& win->_curx <= pmaxcol) {
NewScreen(sp)->_cury = win->_cury - pminrow + win->_begy + win->_yoffset;
NewScreen(sp)->_curx = win->_curx - pmincol + win->_begx;
}
NewScreen(sp)->_leaveok = win->_leaveok;
win->_flags &= ~_HASMOVED;
/*
* Update our cache of the line-numbers that we displayed from the pad.
* We will use this on subsequent calls to this function to derive
* values to stuff into 'oldindex[]' -- for scrolling optimization.
*/
win->_pad._pad_y = pminrow;
win->_pad._pad_x = pmincol;
win->_pad._pad_top = sminrow;
win->_pad._pad_left = smincol;
win->_pad._pad_bottom = smaxrow;
win->_pad._pad_right = smaxcol;
returnCode(OK);
}
static
#if !USE_WIDEC_SUPPORT /* cannot be inline if it is recursive */
NCURSES_INLINE
#endif
int
waddch_literal(WINDOW *win, NCURSES_CH_T ch)
{
int x;
int y;
struct ldat *line;
x = win->_curx;
y = win->_cury;
CHECK_POSITION(win, x, y);
ch = render_char(win, ch);
line = win->_line + y;
CHANGED_CELL(line, x);
/*
* Build up multibyte characters until we have a wide-character.
*/
#if NCURSES_SP_FUNCS
#define DeriveSP() SCREEN *sp = _nc_screen_of(win);
#else
#define DeriveSP() /*nothing */
#endif
if_WIDEC({
DeriveSP();
if (WINDOW_EXT(win, addch_used) != 0 || !Charable(ch)) {
int len = _nc_build_wch(win, CHREF(ch));
if (len >= -1) {
attr_t attr = AttrOf(ch);
/* handle EILSEQ (i.e., when len >= -1) */
if (len == -1 && is8bits(CharOf(ch))) {
int rc = OK;
const char *s = NCURSES_SP_NAME(unctrl)
(NCURSES_SP_ARGx (chtype) CharOf(ch));
if (s[1] != '\0') {
while (*s != '\0') {
rc = waddch(win, UChar(*s) | attr);
if (rc != OK)
break;
++s;
}
return rc;
}
}
if (len == -1)
return waddch(win, ' ' | attr);
} else {
return OK;
}
}
});
int wnoutrefresh(WINDOW *win)
{
short limit_x;
short i, j;
short begx;
short begy;
short m, n;
bool wide;
T((T_CALLED("wnoutrefresh(%p)"), win));
#ifdef TRACE
if (_nc_tracing & TRACE_UPDATE)
_tracedump("...win", win);
#endif /* TRACE */
/*
* This function will break badly if we try to refresh a pad.
*/
if ((win == 0)
|| (win->_flags & _ISPAD))
returnCode(ERR);
/* put them here so "win == 0" won't break our code */
begx = win->_begx;
begy = win->_begy;
/*
* If 'newscr' has a different background than the window that we're
* trying to refresh, we'll have to copy the whole thing.
*/
if (win->_bkgd != newscr->_bkgd) {
touchwin(win);
newscr->_bkgd = win->_bkgd;
}
newscr->_attrs = win->_attrs;
/* merge in change information from all subwindows of this window */
wsyncdown(win);
/*
* For pure efficiency, we'd want to transfer scrolling information
* from the window to newscr whenever the window is wide enough that
* its update will dominate the cost of the update for the horizontal
* band of newscr that it occupies. Unfortunately, this threshold
* tends to be complex to estimate, and in any case scrolling the
* whole band and rewriting the parts outside win's image would look
* really ugly. So. What we do is consider the window "wide" if it
* either (a) occupies the whole width of newscr, or (b) occupies
* all but at most one column on either vertical edge of the screen
* (this caters to fussy people who put boxes around full-screen
* windows). Note that changing this formula will not break any code,
* merely change the costs of various update cases.
*/
wide = (begx <= 1 && win->_maxx >= (newscr->_maxx - 1));
win->_flags &= ~_HASMOVED;
/*
* Microtweaking alert! This double loop is one of the genuine
* hot spots in the code. Even gcc doesn't seem to do enough
* common-subexpression chunking to make it really tense,
* so we'll force the issue.
*/
/* limit(n) */
limit_x = win->_maxx;
/* limit(j) */
if (limit_x > win->_maxx)
limit_x = win->_maxx;
for (i = 0, m = begy + win->_yoffset;
i <= win->_maxy && m <= newscr->_maxy;
i++, m++) {
register struct ldat *nline = &newscr->_line[m];
register struct ldat *oline = &win->_line[i];
if (oline->firstchar != _NOCHANGE) {
int last = oline->lastchar;
if (last > limit_x)
last = limit_x;
for (j = oline->firstchar, n = j + begx; j <= last; j++, n++) {
if (oline->text[j] != nline->text[n]) {
nline->text[n] = oline->text[j];
CHANGED_CELL(nline, n);
}
}
}
#if USE_SCROLL_HINTS
if (wide) {
int oind = oline->oldindex;
nline->oldindex = (oind == _NEWINDEX) ? _NEWINDEX : begy + oind + win->_yoffset;
}
#endif /* USE_SCROLL_HINTS */
oline->firstchar = oline->lastchar = _NOCHANGE;
if_USE_SCROLL_HINTS(oline->oldindex = i);
}
if (win->_clear) {
win->_clear = FALSE;
newscr->_clear = TRUE;
}
if (! win->_leaveok) {
newscr->_cury = win->_cury + win->_begy + win->_yoffset;
newscr->_curx = win->_curx + win->_begx;
}
newscr->_leaveok = win->_leaveok;
#ifdef TRACE
if (_nc_tracing & TRACE_UPDATE)
_tracedump("newscr", newscr);
#endif /* TRACE */
returnCode(OK);
}
NCURSES_SP_NAME(init_pair) (NCURSES_SP_DCLx
NCURSES_PAIRS_T pair,
NCURSES_COLOR_T f,
NCURSES_COLOR_T b)
{
colorpair_t result;
colorpair_t previous;
int maxcolors;
T((T_CALLED("init_pair(%p,%d,%d,%d)"),
(void *) SP_PARM,
(int) pair,
(int) f,
(int) b));
if (!ValidPair(pair))
returnCode(ERR);
maxcolors = MaxColors;
previous = SP_PARM->_color_pairs[pair];
#if NCURSES_EXT_FUNCS
if (SP_PARM->_default_color || SP_PARM->_assumed_color) {
bool isDefault = FALSE;
bool wasDefault = FALSE;
int default_pairs = SP_PARM->_default_pairs;
/*
* Map caller's color number, e.g., -1, 0, 1, .., 7, etc., into
* internal unsigned values which we will store in the _color_pairs[]
* table.
*/
if (isDefaultColor(f)) {
f = COLOR_DEFAULT;
isDefault = TRUE;
} else if (!OkColorHi(f)) {
returnCode(ERR);
}
if (isDefaultColor(b)) {
b = COLOR_DEFAULT;
isDefault = TRUE;
} else if (!OkColorHi(b)) {
returnCode(ERR);
}
/*
* Check if the table entry that we are going to init/update used
* default colors.
*/
if ((FORE_OF(previous) == COLOR_DEFAULT)
|| (BACK_OF(previous) == COLOR_DEFAULT))
wasDefault = TRUE;
/*
* Keep track of the number of entries in the color pair table which
* used a default color.
*/
if (isDefault && !wasDefault) {
++default_pairs;
} else if (wasDefault && !isDefault) {
--default_pairs;
}
/*
* As an extension, ncurses allows the pair number to exceed the
* terminal's color_pairs value for pairs using a default color.
*
* Note that updating a pair which used a default color with one
* that does not will decrement the count - and possibly interfere
* with sequentially adding new pairs.
*/
if (pair > (SP_PARM->_pair_count + default_pairs)) {
returnCode(ERR);
}
SP_PARM->_default_pairs = default_pairs;
} else
#endif
{
if ((f < 0) || !OkColorHi(f)
|| (b < 0) || !OkColorHi(b)
|| (pair < 1)) {
returnCode(ERR);
}
}
/*
* When a pair's content is changed, replace its colors (if pair was
* initialized before a screen update is performed replacing original
* pair colors with the new ones).
*/
result = PAIR_OF(f, b);
if (previous != 0
&& previous != result) {
int y, x;
for (y = 0; y <= CurScreen(SP_PARM)->_maxy; y++) {
struct ldat *ptr = &(CurScreen(SP_PARM)->_line[y]);
bool changed = FALSE;
for (x = 0; x <= CurScreen(SP_PARM)->_maxx; x++) {
if (GetPair(ptr->text[x]) == pair) {
/* Set the old cell to zero to ensure it will be
updated on the next doupdate() */
SetChar(ptr->text[x], 0, 0);
CHANGED_CELL(ptr, x);
changed = TRUE;
}
}
if (changed)
NCURSES_SP_NAME(_nc_make_oldhash) (NCURSES_SP_ARGx y);
}
}
SP_PARM->_color_pairs[pair] = result;
if (GET_SCREEN_PAIR(SP_PARM) == pair)
SET_SCREEN_PAIR(SP_PARM, (int) (~0)); /* force attribute update */
#ifdef USE_TERM_DRIVER
CallDriver_3(SP_PARM, td_initpair, pair, f, b);
#else
if (initialize_pair && InPalette(f) && InPalette(b)) {
const color_t *tp = DefaultPalette;
TR(TRACE_ATTRS,
("initializing pair: pair = %d, fg=(%d,%d,%d), bg=(%d,%d,%d)",
(int) pair,
(int) tp[f].red, (int) tp[f].green, (int) tp[f].blue,
(int) tp[b].red, (int) tp[b].green, (int) tp[b].blue));
NCURSES_PUTP2("initialize_pair",
TPARM_7(initialize_pair,
pair,
(int) tp[f].red,
(int) tp[f].green,
(int) tp[f].blue,
(int) tp[b].red,
(int) tp[b].green,
(int) tp[b].blue));
}
#endif
returnCode(OK);
}
wnoutrefresh(WINDOW *win)
{
int limit_x;
int src_row, src_col;
int begx;
int begy;
int dst_row, dst_col;
#if USE_SCROLL_HINTS
bool wide;
#endif
#if NCURSES_SP_FUNCS
SCREEN *SP_PARM = _nc_screen_of(win);
#endif
T((T_CALLED("wnoutrefresh(%p)"), (void *) win));
#ifdef TRACE
if (USE_TRACEF(TRACE_UPDATE)) {
_tracedump("...win", win);
_nc_unlock_global(tracef);
}
#endif /* TRACE */
/*
* This function will break badly if we try to refresh a pad.
*/
if ((win == 0)
|| (win->_flags & _ISPAD))
returnCode(ERR);
/* put them here so "win == 0" won't break our code */
begx = win->_begx;
begy = win->_begy;
NewScreen(SP_PARM)->_nc_bkgd = win->_nc_bkgd;
WINDOW_ATTRS(NewScreen(SP_PARM)) = WINDOW_ATTRS(win);
/* merge in change information from all subwindows of this window */
wsyncdown(win);
#if USE_SCROLL_HINTS
/*
* For pure efficiency, we'd want to transfer scrolling information
* from the window to newscr whenever the window is wide enough that
* its update will dominate the cost of the update for the horizontal
* band of newscr that it occupies. Unfortunately, this threshold
* tends to be complex to estimate, and in any case scrolling the
* whole band and rewriting the parts outside win's image would look
* really ugly. So. What we do is consider the window "wide" if it
* either (a) occupies the whole width of newscr, or (b) occupies
* all but at most one column on either vertical edge of the screen
* (this caters to fussy people who put boxes around full-screen
* windows). Note that changing this formula will not break any code,
* merely change the costs of various update cases.
*/
wide = (begx <= 1 && win->_maxx >= (NewScreen(SP_PARM)->_maxx - 1));
#endif
win->_flags &= ~_HASMOVED;
/*
* Microtweaking alert! This double loop is one of the genuine
* hot spots in the code. Even gcc doesn't seem to do enough
* common-subexpression chunking to make it really tense,
* so we'll force the issue.
*/
/* limit(dst_col) */
limit_x = win->_maxx;
/* limit(src_col) */
if (limit_x > NewScreen(SP_PARM)->_maxx - begx)
limit_x = NewScreen(SP_PARM)->_maxx - begx;
for (src_row = 0, dst_row = begy + win->_yoffset;
src_row <= win->_maxy && dst_row <= NewScreen(SP_PARM)->_maxy;
src_row++, dst_row++) {
struct ldat *nline = &(NewScreen(SP_PARM)->_line[dst_row]);
struct ldat *oline = &win->_line[src_row];
if (oline->firstchar != _NOCHANGE) {
int last_src = oline->lastchar;
if (last_src > limit_x)
last_src = limit_x;
src_col = oline->firstchar;
dst_col = src_col + begx;
if_WIDEC({
int j;
/*
* Ensure that we will copy complete multi-column characters
* on the left-boundary.
*/
if (isWidecExt(oline->text[src_col])) {
j = 1 + dst_col - WidecExt(oline->text[src_col]);
if (j < 0)
j = 0;
if (dst_col > j) {
src_col -= (dst_col - j);
dst_col = j;
}
}
/*
* Ensure that we will copy complete multi-column characters
* on the right-boundary.
*/
j = last_src;
if (WidecExt(oline->text[j])) {
++j;
while (j <= limit_x) {
if (isWidecBase(oline->text[j])) {
break;
} else {
last_src = j;
}
++j;
}
}
});
if_WIDEC({
static cchar_t blank = BLANK;
int last_dst = begx + ((last_src < win->_maxx)
? last_src
: win->_maxx);
int fix_left = dst_col;
int fix_right = last_dst;
int j;
/*
* Check for boundary cases where we may overwrite part of a
* multi-column character. For those, wipe the remainder of
* the character to blanks.
*/
j = dst_col;
if (isWidecExt(nline->text[j])) {
/*
* On the left, we only care about multi-column characters
* that extend into the changed region.
*/
fix_left = 1 + j - WidecExt(nline->text[j]);
if (fix_left < 0)
fix_left = 0; /* only if cell is corrupt */
}
j = last_dst;
if (WidecExt(nline->text[j]) != 0) {
/*
* On the right, any multi-column character is a problem,
* unless it happens to be contained in the change, and
* ending at the right boundary of the change. The
* computation for 'fix_left' accounts for the left-side of
* this character. Find the end of the character.
*/
++j;
while (j <= NewScreen(SP_PARM)->_maxx &&
isWidecExt(nline->text[j])) {
fix_right = j++;
}
}
/*
* The analysis is simpler if we do the clearing afterwards.
* Do that now.
*/
if (fix_left < dst_col || fix_right > last_dst) {
for (j = fix_left; j <= fix_right; ++j) {
nline->text[j] = blank;
CHANGED_CELL(nline, j);
}
}
});