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Fix the reverse emulation when a terminal doesn't have setab to use the correct

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fg/bg (adjusted if spaces) and happen before attribute setting.
This commit is contained in:
Nicholas Marriott
2009-11-04 13:34:26 +00:00
parent d2dfbef05a
commit a94535f318
1 changed files with 24 additions and 18 deletions
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42
tty.c
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@@ -1121,7 +1121,7 @@ tty_attributes(struct tty *tty, const struct grid_cell *gc)
{
struct grid_cell *tc = &tty->cell, gc2;
u_char changed;
u_int fg = gc->fg, bg = gc->bg, attr = gc->attr;
u_int new_attr;
/* If the character is space, don't care about foreground. */
if (gc->data == ' ' && !(gc->flags & GRID_FLAG_UTF8)) {
@@ -1137,34 +1137,40 @@ tty_attributes(struct tty *tty, const struct grid_cell *gc)
gc = &gc2;
}
/* If any bits are being cleared, reset everything. */
if (tc->attr & ~attr)
tty_reset(tty);
/*
* Set the colours. This may call tty_reset() (so it comes next) and
* may add to the desired attributes in attr.
*/
tty_colours(tty, gc, &attr);
/*
* If no setab, try to use the reverse attribute as a best-effort for a
* non-default background. This is a bit of a hack but it doesn't do
* any serious harm and makes a couple of applications happier.
*/
if (!tty_term_has(tty->term, TTYC_SETAB)) {
if (attr & GRID_ATTR_REVERSE) {
if (fg != 7 && fg != 8)
attr &= ~GRID_ATTR_REVERSE;
if (gc != &gc2) {
memcpy(&gc2, gc, sizeof gc2);
gc = &gc2;
}
if (gc->attr & GRID_ATTR_REVERSE) {
if (gc->fg != 7 && gc->fg != 8)
gc2.attr &= ~GRID_ATTR_REVERSE;
} else {
if (bg != 0 && bg != 8)
attr |= GRID_ATTR_REVERSE;
if (gc->bg != 0 && gc->bg != 8)
gc2.attr |= GRID_ATTR_REVERSE;
}
}
/* If any bits are being cleared, reset everything. */
if (tc->attr & ~gc->attr)
tty_reset(tty);
/*
* Set the colours. This may call tty_reset() (so it comes next) and
* may add to (NOT remove) the desired attributes by changing new_attr.
*/
new_attr = gc->attr;
tty_colours(tty, gc, &new_attr);
/* Filter out attribute bits already set. */
changed = attr & ~tc->attr;
tc->attr = attr;
changed = new_attr & ~tc->attr;
tc->attr = new_attr;
/* Set the attributes. */
if (changed & GRID_ATTR_BRIGHT)