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Fix handling of mixed colors+attributes case by merging from ncurses 4.1

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This commit is contained in:
Andrey A. Chernov 1997-07-30 19:04:08 +00:00
parent c8a57a4fe5
commit 89047cedf5
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=27774
1 changed files with 21 additions and 7 deletions
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28
lib/libncurses/lib_vidattr.c
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@ -73,20 +73,34 @@ int vidputs(chtype newmode, int (*outc)(int))
{
chtype turn_off = (~newmode & previous_attr) & ~A_COLOR;
chtype turn_on = (newmode & ~previous_attr) & ~A_COLOR;
int pair, current_pair;
T(("vidputs(%x) called %s", newmode, _traceattr(newmode)));
T(("previous attribute was %s", _traceattr(previous_attr)));
if (newmode == previous_attr)
return OK;
pair = PAIR_NUMBER(newmode);
current_pair = PAIR_NUMBER(previous_attr);
if ((!SP || SP->_coloron) && pair == 0) {
T(("old pair = %d -- new pair = %d", current_pair, pair));
if (pair != current_pair) {
do_color(pair, outc);
previous_attr &= ~A_COLOR;
}
}
if (newmode == A_NORMAL && exit_attribute_mode) {
if((previous_attr & A_ALTCHARSET) && exit_alt_charset_mode) {
tputs(exit_alt_charset_mode, 1, outc);
previous_attr &= ~A_ALTCHARSET;
}
if (previous_attr)
if (previous_attr) {
tputs(exit_attribute_mode, 1, outc);
previous_attr &= ~A_COLOR;
}
} else if (set_attributes) {
if (turn_on || turn_off) {
tputs(tparm(set_attributes,
@ -99,6 +113,7 @@ chtype turn_on = (newmode & ~previous_attr) & ~A_COLOR;
(newmode & A_INVIS) != 0,
(newmode & A_PROTECT) != 0,
(newmode & A_ALTCHARSET) != 0), 1, outc);
previous_attr &= ~A_COLOR;
}
} else {
@ -122,6 +137,7 @@ chtype turn_on = (newmode & ~previous_attr) & ~A_COLOR;
if (turn_off && exit_attribute_mode) {
tputs(exit_attribute_mode, 1, outc);
turn_on |= newmode & (A_UNDERLINE|A_REVERSE|A_BLINK|A_DIM|A_BOLD|A_INVIS|A_PROTECT);
previous_attr &= ~A_COLOR;
}
T(("turning %x on", _traceattr(turn_on)));
@ -155,12 +171,10 @@ chtype turn_on = (newmode & ~previous_attr) & ~A_COLOR;
}
if (SP->_coloron) {
int pair = PAIR_NUMBER(newmode);
int current_pair = PAIR_NUMBER(previous_attr);
if ((!SP || SP->_coloron) && pair != 0) {
current_pair = PAIR_NUMBER(previous_attr);
T(("old pair = %d -- new pair = %d", current_pair, pair));
if (pair != current_pair || turn_off) {
if (pair != current_pair) {
do_color(pair, outc);
}
}