186 lines
4.8 KiB
C
186 lines
4.8 KiB
C
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/* This work is copyrighted. See COPYRIGHT.OLD & COPYRIGHT.NEW for *
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* details. If they are missing then this copy is in violation of *
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* the copyright conditions. */
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/*
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* vidputs(newmode, outc)
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*
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* newmode is taken to be the logical 'or' of the symbols in curses.h
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* representing graphic renditions. The teminal is set to be in all of
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* the given modes, if possible.
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*
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* if set-attributes exists
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* use it to set exactly what you want
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* else
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* if exit-attribute-mode exists
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* turn off everything
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* else
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* turn off those which can be turned off and aren't in
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* newmode.
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* turn on each mode which should be on and isn't, one by one
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*
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* NOTE that this algorithm won't achieve the desired mix of attributes
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* in some cases, but those are probably just those cases in which it is
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* actually impossible, anyway, so...
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*
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*/
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#include <string.h>
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#include "curses.priv.h"
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#include <nterm.h>
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static void do_color(int pair, int (*outc)(char))
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{
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short fg, bg;
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if ( pair == 0 ) {
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tputs(orig_pair, 1, outc);
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} else {
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fg = FG(color_pairs[pair]);
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bg = BG(color_pairs[pair]);
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T(("setting colors: pair = %d, fg = %d, bg = %d\n", pair, fg, bg));
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if (set_a_foreground)
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tputs(tparm(set_a_foreground, fg), 1, outc);
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else
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tputs(tparm(set_foreground, fg), 1, outc);
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if (set_a_background)
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tputs(tparm(set_a_background, bg), 1, outc);
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else
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tputs(tparm(set_background, bg), 1, outc);
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}
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}
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static int current_pair = 0;
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static chtype previous_attr = 0;
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int vidputs(chtype newmode, int (*outc)(char))
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{
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chtype turn_off, turn_on;
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T(("vidputs(%x) called %s", newmode, _traceattr(newmode)));
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T(("previous attribute was %s", _traceattr(previous_attr)));
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if (newmode == A_NORMAL && exit_attribute_mode) {
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tputs(exit_attribute_mode, 1, outc);
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current_pair = -1;
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goto set_color;
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}
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else if (set_attributes) {
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tputs(tparm(set_attributes,
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(newmode & A_STANDOUT) != 0,
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(newmode & A_UNDERLINE) != 0,
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(newmode & A_REVERSE) != 0,
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(newmode & A_BLINK) != 0,
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(newmode & A_DIM) != 0,
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(newmode & A_BOLD) != 0,
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(newmode & A_INVIS) != 0,
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(newmode & A_PROTECT) != 0,
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(newmode & A_ALTCHARSET) != 0), 1, outc);
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goto set_color;
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} else {
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if (exit_attribute_mode) {
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if((previous_attr & A_ALTCHARSET) && exit_alt_charset_mode) {
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tputs(exit_alt_charset_mode, 1, outc);
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previous_attr &= ~A_ALTCHARSET;
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}
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if (previous_attr) {
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T(("exiting attribute mode"));
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tputs(exit_attribute_mode, 1, outc);
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previous_attr = 0;
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current_pair = -1;
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}
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} else {
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turn_off = ~newmode & previous_attr;
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T(("turning %x off", turn_off));
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if ((turn_off & A_ALTCHARSET) && exit_alt_charset_mode)
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tputs(exit_alt_charset_mode, 1, outc);
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if ((turn_off & A_BOLD) && exit_standout_mode)
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tputs(exit_standout_mode, 1, outc);
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if ((turn_off & A_DIM) && exit_standout_mode)
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tputs(exit_standout_mode, 1, outc);
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if ((turn_off & A_BLINK) && exit_standout_mode)
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tputs(exit_standout_mode, 1, outc);
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if ((turn_off & A_INVIS) && exit_standout_mode)
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tputs(exit_standout_mode, 1, outc);
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if ((turn_off & A_PROTECT) && exit_standout_mode)
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tputs(exit_standout_mode, 1, outc);
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if ((turn_off & A_UNDERLINE) && exit_underline_mode)
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tputs(exit_underline_mode, 1, outc);
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if ((turn_off & A_REVERSE) && exit_standout_mode)
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tputs(exit_standout_mode, 1, outc);
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if ((turn_off & A_STANDOUT) && exit_standout_mode)
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tputs(exit_standout_mode, 1, outc);
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}
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turn_on = newmode & ~previous_attr;
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T(("turning %x on", turn_on));
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if ((turn_on & A_ALTCHARSET) && enter_alt_charset_mode)
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tputs(enter_alt_charset_mode, 1, outc);
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if ((turn_on & A_BLINK) && enter_blink_mode)
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tputs(enter_blink_mode, 1, outc);
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if ((turn_on & A_BOLD) && enter_bold_mode)
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tputs(enter_bold_mode, 1, outc);
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if ((turn_on & A_DIM) && enter_dim_mode)
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tputs(enter_dim_mode, 1, outc);
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if ((turn_on & A_REVERSE) && enter_reverse_mode)
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tputs(enter_reverse_mode, 1, outc);
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if ((turn_on & A_STANDOUT) && enter_standout_mode)
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tputs(enter_standout_mode, 1, outc);
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if ((turn_on & A_PROTECT) && enter_protected_mode)
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tputs(enter_protected_mode, 1, outc);
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if ((turn_on & A_INVIS) && enter_secure_mode)
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tputs(enter_secure_mode, 1, outc);
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if ((turn_on & A_UNDERLINE) && enter_underline_mode)
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tputs(enter_underline_mode, 1, outc);
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set_color:
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if (_coloron) {
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int pair = PAIR_NUMBER(newmode);
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T(("old pair = %d -- new pair = %d", current_pair, pair));
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if (pair != current_pair) {
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current_pair = pair;
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do_color(pair, outc);
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}
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}
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}
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previous_attr = newmode;
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T(("vidputs finished"));
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return OK;
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}
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int vidattr(chtype newmode)
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{
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T(("vidattr(%x) called", newmode));
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return(vidputs(newmode, _outc));
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}
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