void
doupdate(void)
{
/* TODO remove unnecessary refresh() call, to save CPU time */
register screenline_t *bp = big_picture;
register int i, j;
int len;
if ((docls) || (abs(scrollcnt) >= (t_lines - 3))) {
redrawwin();
return;
}
if (scrollcnt < 0) {
if (!scrollrevlen) {
redrawwin();
return;
}
rel_move(tc_col, tc_line, 0, 0);
do {
o_scrollrev();
} while (++scrollcnt);
} else if (scrollcnt > 0) {
rel_move(tc_col, tc_line, 0, b_lines);
do {
ochar('\n');
} while (--scrollcnt);
}
for (i = 0, j = roll; i < t_lines; i++, j++) {
if (j >= t_lines)
j = 0;
bp = &big_picture[j];
len = bp->len;
if (bp->mode & MODIFIED && bp->smod < len)
{
bp->mode &= ~(MODIFIED);
#ifdef DBCSAWARE
if (!(bp->mode & STANDOUT) &&
(HasUserFlag(UF_DBCS_NOINTRESC)) &&
DBCS_RemoveIntrEscape(bp->data, &len))
{
// if anything changed, dirty whole line.
bp->len = len;
bp->smod = 0; bp->emod = len;
}
#endif // DBCSAWARE
// disable this if you encounter some bugs.
// bug history:
// (1) input number (goto) in bbs list (search_num) [solved: search_num merged to vget]
// (2) some empty lines becomes weird (eg, b_config) [not seen anymore?]
#if 1
if (bp->smod > 0)
{
// more effort to determine ANSI smod
int iesc;
for (iesc = bp->smod-1; iesc >= 0; iesc--)
{
if (bp->data[iesc] == ESC_CHR)
{
bp->smod = 0;// iesc;
bp->emod =len -1;
break;
}
}
}
#endif
if (bp->emod >= len)
bp->emod = len - 1;
rel_move(tc_col, tc_line, bp->smod, i);
if (bp->mode & STANDOUT)
standoutput((char *)bp->data, bp->smod, bp->emod + 1,
bp->sso, bp->eso);
else
output((char *)&bp->data[bp->smod], bp->emod - bp->smod + 1);
tc_col = bp->emod + 1;
if (tc_col >= t_columns) {
if (automargins)
tc_col = t_columns - 1;
else {
tc_col -= t_columns;
tc_line++;
if (tc_line >= t_lines)
tc_line = b_lines;
}
}
}
if (bp->oldlen > len) {
/* XXX len/oldlen also count the length of escape sequence,
* before we fix it, we must print ANSI_CLRTOEND everywhere */
rel_move(tc_col, tc_line, len, i);
o_cleol();
}
bp->oldlen = len;
}
rel_move(tc_col, tc_line, cur_col, cur_ln);
oflush();
}
void
refresh()
{
register screenline *bp = big_picture;
register int i, j, len;
if (icurrchar != ibufsize)
return;
if ((docls) || (abs(scrollcnt) >= (scr_lns - 3)))
{
redoscr();
return;
}
if (scrollcnt < 0)
{
rel_move(0, 0);
do
{
o_scrollrev();
} while (++scrollcnt);
}
else if (scrollcnt > 0)
{
rel_move(0, b_lines);
do
{
ochar('\n');
} while (--scrollcnt);
}
for (i = 0, j = roll; i < scr_lns; i++, j++)
{
if (j >= scr_lns)
j = 0;
bp = &big_picture[j];
len = bp->len;
if (bp->mode & MODIFIED && bp->smod < len)
{
bp->mode &= ~(MODIFIED);
if (bp->emod >= len)
bp->emod = len - 1;
rel_move(bp->smod, i);
if (bp->mode & STANDOUT)
standoutput(bp->data, bp->smod, bp->emod + 1, bp->sso, bp->eso);
else
output(&bp->data[bp->smod], bp->emod - bp->smod + 1);
tc_col = bp->emod + 1;
if (tc_col >= scr_cols)
{
if (automargins)
tc_col = scr_cols - 1;
else
{
tc_col -= scr_cols;
tc_line++;
if (tc_line >= t_lines)
tc_line = b_lines;
}
}
}
if (bp->oldlen > len)
{
rel_move(len, i);
o_cleol();
}
bp->oldlen = len;
}
rel_move(cur_col, cur_ln);
oflush();
}