diff options
Diffstat (limited to 'lib/libncurses/lib_vidattr.c')
| -rw-r--r-- | lib/libncurses/lib_vidattr.c | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/lib/libncurses/lib_vidattr.c b/lib/libncurses/lib_vidattr.c new file mode 100644 index 0000000..eb796f4 --- /dev/null +++ b/lib/libncurses/lib_vidattr.c @@ -0,0 +1,181 @@ + +/*************************************************************************** +* 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)); +} + |
