Install ncurses as -lcurses and <curses.h>

Install BSD curses library as -locurses and <ocurses.h>

1 files changed, 275 insertions, 0 deletions

diff --git a/lib/libcurses/lib_vidattr.c b/lib/libcurses/lib_vidattr.c
new file mode 100644
index 00000000000..8c6ffc8a35a
--- /dev/null
+++ b/lib/libcurses/lib_vidattr.c
@@ -0,0 +1,275 @@
+
+/***************************************************************************
+*                            COPYRIGHT NOTICE                              *
+****************************************************************************
+*                ncurses is copyright (C) 1992-1995                        *
+*                          Zeyd M. Ben-Halim                               *
+*                          zmbenhal@netcom.com                             *
+*                          Eric S. Raymond                                 *
+*                          esr@snark.thyrsus.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, and is not    *
+*        removed from any of its header files. Mention of ncurses in any   *
+*        applications linked with it is highly appreciated.                *
+*                                                                          *
+*        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 the new attribute is normal
+ *		if exit-alt-char-set exists
+ *			emit it
+ *		emit exit-attribute-mode
+ *	else 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 "curses.priv.h"
+#include <string.h>
+#include "term.h"
+
+int vidputs(attr_t newmode, int  (*outc)(int))
+{
+static attr_t previous_attr;
+attr_t turn_on, turn_off;
+
+	T(("vidputs(%lx) called %s", newmode, _traceattr(newmode)));
+
+	/* this allows us to go on whether or not newterm() has been called */ 
+	if (SP)
+		previous_attr = SP->_current_attr;
+
+	T(("previous attribute was %s", _traceattr(previous_attr)));
+
+	turn_off = (~newmode & previous_attr) & (chtype)(~A_COLOR);
+	turn_on  = (newmode & ~previous_attr) & (chtype)(~A_COLOR);
+
+	if (newmode == previous_attr)
+		return OK;
+	if (newmode == A_NORMAL) {
+		if((previous_attr & A_ALTCHARSET) && exit_alt_charset_mode) {
+			TPUTS_TRACE("exit_alt_charset_mode");
+ 			tputs(exit_alt_charset_mode, 1, outc);
+ 			previous_attr &= ~A_ALTCHARSET;
+ 		}
+		if (previous_attr & A_COLOR) {
+			TPUTS_TRACE("orig_pair");
+ 			tputs(orig_pair, 1, outc);
+		}
+ 		if (previous_attr) {
+			TPUTS_TRACE("exit_attribute_mode");
+ 			tputs(exit_attribute_mode, 1, outc);
+		}
+ 	
+	} else if (set_attributes) {
+		if (turn_on || turn_off) {
+			TPUTS_TRACE("set_attributes");
+	    		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);
+			/*
+			 * Setting attributes in this way tends to unset the
+			 * ones (such as color) that weren't specified.
+			 */
+			turn_off |= A_COLOR;
+		}
+	} else {
+
+		T(("turning %s off", _traceattr(turn_off)));
+
+		if ((turn_off & A_ALTCHARSET) && exit_alt_charset_mode) {
+			TPUTS_TRACE("exit_alt_charset_mode");
+			tputs(exit_alt_charset_mode, 1, outc);
+			turn_off &= ~A_ALTCHARSET;
+		}
+
+		if ((turn_off & A_UNDERLINE)  &&  exit_underline_mode) {
+			TPUTS_TRACE("exit_underline_mode");
+			tputs(exit_underline_mode, 1, outc);
+			turn_off &= ~A_UNDERLINE;
+		}
+
+		if ((turn_off & A_STANDOUT)  &&  exit_standout_mode) {
+			TPUTS_TRACE("exit_standout_mode");
+			tputs(exit_standout_mode, 1, outc);
+			turn_off &= ~A_STANDOUT;
+		}
+
+		if (turn_off && exit_attribute_mode) {
+			TPUTS_TRACE("exit_attribute_mode");
+			tputs(exit_attribute_mode, 1, outc);
+			turn_on  |= (newmode & (chtype)(~A_COLOR));
+			turn_off |= A_COLOR;
+		}
+
+		T(("turning %s on", _traceattr(turn_on)));
+
+		if ((turn_on & A_ALTCHARSET) && enter_alt_charset_mode) {
+			TPUTS_TRACE("enter_alt_charset_mode");
+			tputs(enter_alt_charset_mode, 1, outc);
+		}
+
+		if ((turn_on & A_BLINK)  &&  enter_blink_mode) {
+			TPUTS_TRACE("enter_blink_mode");
+			tputs(enter_blink_mode, 1, outc);
+		}
+
+		if ((turn_on & A_BOLD)  &&  enter_bold_mode) {
+			TPUTS_TRACE("enter_bold_mode");
+			tputs(enter_bold_mode, 1, outc);
+		}
+
+		if ((turn_on & A_DIM)  &&  enter_dim_mode) {
+			TPUTS_TRACE("enter_dim_mode");
+			tputs(enter_dim_mode, 1, outc);
+		}
+
+		if ((turn_on & A_REVERSE)  &&  enter_reverse_mode) {
+			TPUTS_TRACE("enter_reverse_mode");
+			tputs(enter_reverse_mode, 1, outc);
+		}
+
+		if ((turn_on & A_STANDOUT)  &&  enter_standout_mode) {
+			TPUTS_TRACE("enter_standout_mode");
+			tputs(enter_standout_mode, 1, outc);
+		}
+
+		if ((turn_on & A_PROTECT)  &&  enter_protected_mode) {
+			TPUTS_TRACE("enter_protected_mode");
+			tputs(enter_protected_mode, 1, outc);
+		}
+
+		if ((turn_on & A_INVIS)  &&  enter_secure_mode) {
+			TPUTS_TRACE("enter_secure_mode");
+			tputs(enter_secure_mode, 1, outc);
+		}
+
+		if ((turn_on & A_UNDERLINE)  &&  enter_underline_mode) {
+			TPUTS_TRACE("enter_underline_mode");
+			tputs(enter_underline_mode, 1, outc);
+		}
+
+		if ((turn_on & A_HORIZONTAL)  &&  enter_horizontal_hl_mode) {
+			TPUTS_TRACE("enter_horizontal_hl_mode");
+			tputs(enter_horizontal_hl_mode, 1, outc);
+		}
+
+		if ((turn_on & A_LEFT)  &&  enter_left_hl_mode) {
+			TPUTS_TRACE("enter_left_hl_mode");
+			tputs(enter_left_hl_mode, 1, outc);
+		}
+
+		if ((turn_on & A_LOW)  &&  enter_low_hl_mode) {
+			TPUTS_TRACE("enter_low_hl_mode");
+			tputs(enter_low_hl_mode, 1, outc);
+		}
+
+		if ((turn_on & A_RIGHT)  &&  enter_right_hl_mode) {
+			TPUTS_TRACE("enter_right_hl_mode");
+			tputs(enter_right_hl_mode, 1, outc);
+		}
+
+		if ((turn_on & A_TOP)  &&  enter_top_hl_mode) {
+			TPUTS_TRACE("enter_top_hl_mode");
+			tputs(enter_top_hl_mode, 1, outc);
+		}
+
+		if ((turn_on & A_VERTICAL)  &&  enter_vertical_hl_mode) {
+			TPUTS_TRACE("enter_vertical_hl_mode");
+			tputs(enter_vertical_hl_mode, 1, outc);
+		}
+	}
+
+	/* if there is no crrent screen, assume we *can* do color */
+	if (!SP || 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 && pair)) {
+			_nc_do_color(pair, outc);
+		}
+   	}
+
+	if (SP)
+		SP->_current_attr = newmode;
+
+	T(("vidputs finished"));
+	return OK;
+}
+
+#undef vidattr
+
+int vidattr(attr_t newmode)
+{
+
+	T(("vidattr(%lx) called", newmode));
+
+	return(vidputs(newmode, _nc_outch));
+}
+
+attr_t termattrs(void)
+{
+	int attrs = A_NORMAL;
+
+	if (enter_alt_charset_mode)
+		attrs |= A_ALTCHARSET;
+
+	if (enter_blink_mode)
+		attrs |= A_BLINK;
+
+	if (enter_bold_mode)
+		attrs |= A_BOLD;
+
+	if (enter_dim_mode)
+		attrs |= A_DIM;
+
+	if (enter_reverse_mode)
+		attrs |= A_REVERSE;
+
+	if (enter_standout_mode)
+		attrs |= A_STANDOUT;
+
+	if (enter_protected_mode)
+		attrs |= A_PROTECT;
+
+	if (enter_secure_mode)
+		attrs |= A_INVIS;
+
+	if (enter_underline_mode)
+		attrs |= A_UNDERLINE;
+
+	if (SP->_coloron)
+		attrs |= A_COLOR;
+
+	return(attrs);
+}
+