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/***************************************************************************
* COPYRIGHT NOTICE *
****************************************************************************
* ncurses is copyright (C) 1992, 1993, 1994 *
* by Zeyd M. Ben-Halim *
* zmbenhal@netcom.com *
* *
* Permission is hereby granted to reproduce and distribute ncurses *
* by any means and for any fee, whether alone or as part of a *
* larger distribution, in source or in binary form, PROVIDED *
* this notice is included with any such distribution, not removed *
* from header files, and is reproduced in any documentation *
* accompanying it or the applications linked with it. *
* *
* ncurses comes AS IS with no warranty, implied or expressed. *
* *
***************************************************************************/
/*
* vidputs(newmode, outc)
*
* newmode is taken to be the logical 'or' of the symbols in curses.h
* representing graphic renditions. The teminal is set to be in all of
* the given modes, if possible.
*
* if set-attributes exists
* use it to set exactly what you want
* else
* if exit-attribute-mode exists
* turn off everything
* else
* turn off those which can be turned off and aren't in
* newmode.
* turn on each mode which should be on and isn't, one by one
*
* NOTE that this algorithm won't achieve the desired mix of attributes
* in some cases, but those are probably just those cases in which it is
* actually impossible, anyway, so...
*
*/
#include <string.h>
#include "curses.priv.h"
#include "terminfo.h"
static void do_color(int pair, int (*outc)(int))
{
int fg, bg;
if ( pair == 0 ) {
tputs(orig_pair, 1, outc);
} else {
fg = FG(color_pairs[pair]);
bg = BG(color_pairs[pair]);
T(("setting colors: pair = %d, fg = %d, bg = %d\n", pair, fg, bg));
if (set_a_foreground)
tputs(tparm(set_a_foreground, fg), 1, outc);
else
tputs(tparm(set_foreground, fg), 1, outc);
if (set_a_background)
tputs(tparm(set_a_background, bg), 1, outc);
else
tputs(tparm(set_background, bg), 1, outc);
}
}
#define previous_attr SP->_current_attr
int vidputs(chtype newmode, int (*outc)(int))
{
chtype turn_off = (~newmode & previous_attr) & ~A_COLOR;
chtype turn_on = (newmode & ~previous_attr) & ~A_COLOR;
T(("vidputs(%x) called %s", newmode, _traceattr(newmode)));
T(("previous attribute was %s", _traceattr(previous_attr)));
if (newmode == previous_attr)
return OK;
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)
tputs(exit_attribute_mode, 1, outc);
} else if (set_attributes) {
if (turn_on || turn_off) {
tputs(tparm(set_attributes,
(newmode & A_STANDOUT) != 0,
(newmode & A_UNDERLINE) != 0,
(newmode & A_REVERSE) != 0,
(newmode & A_BLINK) != 0,
(newmode & A_DIM) != 0,
(newmode & A_BOLD) != 0,
(newmode & A_INVIS) != 0,
(newmode & A_PROTECT) != 0,
(newmode & A_ALTCHARSET) != 0), 1, outc);
}
} else {
T(("turning %x off", _traceattr(turn_off)));
if ((turn_off & A_ALTCHARSET) && exit_alt_charset_mode) {
tputs(exit_alt_charset_mode, 1, outc);
turn_off &= ~A_ALTCHARSET;
}
if ((turn_off & A_UNDERLINE) && exit_underline_mode) {
tputs(exit_underline_mode, 1, outc);
turn_off &= ~A_UNDERLINE;
}
if ((turn_off & A_STANDOUT) && exit_standout_mode) {
tputs(exit_standout_mode, 1, outc);
turn_off &= ~A_STANDOUT;
}
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);
}
T(("turning %x on", _traceattr(turn_on)));
if ((turn_on & A_ALTCHARSET) && enter_alt_charset_mode)
tputs(enter_alt_charset_mode, 1, outc);
if ((turn_on & A_BLINK) && enter_blink_mode)
tputs(enter_blink_mode, 1, outc);
if ((turn_on & A_BOLD) && enter_bold_mode)
tputs(enter_bold_mode, 1, outc);
if ((turn_on & A_DIM) && enter_dim_mode)
tputs(enter_dim_mode, 1, outc);
if ((turn_on & A_REVERSE) && enter_reverse_mode)
tputs(enter_reverse_mode, 1, outc);
if ((turn_on & A_STANDOUT) && enter_standout_mode)
tputs(enter_standout_mode, 1, outc);
if ((turn_on & A_PROTECT) && enter_protected_mode)
tputs(enter_protected_mode, 1, outc);
if ((turn_on & A_INVIS) && enter_secure_mode)
tputs(enter_secure_mode, 1, outc);
if ((turn_on & A_UNDERLINE) && enter_underline_mode)
tputs(enter_underline_mode, 1, outc);
}
if (SP->_coloron) {
int pair = PAIR_NUMBER(newmode);
int current_pair = PAIR_NUMBER(previous_attr);
T(("old pair = %d -- new pair = %d", current_pair, pair));
if (pair != current_pair || turn_off) {
do_color(pair, outc);
}
}
previous_attr = newmode;
T(("vidputs finished"));
return OK;
}
int vidattr(chtype newmode)
{
T(("vidattr(%x) called", newmode));
return(vidputs(newmode, _outch));
}
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