/****************************************************************************
 * Copyright (c) 1998 Free Software Foundation, Inc.                        *
 *                                                                          *
 * Permission is hereby granted, free of charge, to any person obtaining a  *
 * copy of this software and associated documentation files (the            *
 * "Software"), to deal in the Software without restriction, including      *
 * without limitation the rights to use, copy, modify, merge, publish,      *
 * distribute, distribute with modifications, sublicense, and/or sell       *
 * copies of the Software, and to permit persons to whom the Software is    *
 * furnished to do so, subject to the following conditions:                 *
 *                                                                          *
 * The above copyright notice and this permission notice shall be included  *
 * in all copies or substantial portions of the Software.                   *
 *                                                                          *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
 *                                                                          *
 * Except as contained in this notice, the name(s) of the above copyright   *
 * holders shall not be used in advertising or otherwise to promote the     *
 * sale, use or other dealings in this Software without prior written       *
 * authorization.                                                           *
 ****************************************************************************/

/****************************************************************************
 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
 ****************************************************************************/



/*
 *	lib_traceatr.c - Tracing/Debugging routines (attributes)
 */

#include <curses.priv.h>
#include <term.h>	/* acs_chars */

MODULE_ID("$Id: lib_traceatr.c,v 1.28 1998/03/21 18:39:36 tom Exp $")

#define COLOR_OF(c) (c < 0 || c > 7 ? "default" : colors[c].name)

#ifdef TRACE
char *_traceattr2(int bufnum, attr_t newmode)
{
char	*buf = _nc_trace_buf(bufnum, BUFSIZ);
char	*tmp = buf;
static const	struct {unsigned int val; const char *name;}
names[] =
    {
	{ A_STANDOUT,		"A_STANDOUT" },
	{ A_UNDERLINE,		"A_UNDERLINE" },
	{ A_REVERSE,		"A_REVERSE" },
	{ A_BLINK,		"A_BLINK" },
	{ A_DIM,		"A_DIM" },
	{ A_BOLD,		"A_BOLD" },
	{ A_ALTCHARSET,		"A_ALTCHARSET" },
	{ A_INVIS,		"A_INVIS" },
	{ A_PROTECT,		"A_PROTECT" },
	{ A_CHARTEXT,		"A_CHARTEXT" },
	{ A_NORMAL,		"A_NORMAL" },
	{ A_COLOR,		"A_COLOR" },
    },
colors[] =
    {
	{ COLOR_BLACK,		"COLOR_BLACK" },
	{ COLOR_RED,		"COLOR_RED" },
	{ COLOR_GREEN,		"COLOR_GREEN" },
	{ COLOR_YELLOW,		"COLOR_YELLOW" },
	{ COLOR_BLUE,		"COLOR_BLUE" },
	{ COLOR_MAGENTA,	"COLOR_MAGENTA" },
	{ COLOR_CYAN,		"COLOR_CYAN" },
	{ COLOR_WHITE,		"COLOR_WHITE" },
    };
size_t n;
unsigned save_nc_tracing = _nc_tracing;
	_nc_tracing = 0;

	strcpy(tmp++, "{");

	for (n = 0; n < SIZEOF(names); n++) {
		if ((newmode & names[n].val) != 0) {
			if (buf[1] != '\0')
				strcat(tmp, "|");
			strcat(tmp, names[n].name);
			tmp += strlen(tmp);

			if (names[n].val == A_COLOR)
			{
				short pairnum = PAIR_NUMBER(newmode);
				short fg, bg;
	
				if (pair_content(pairnum, &fg, &bg) == OK)
					(void) sprintf(tmp,
						"{%d = {%s, %s}}",
						pairnum,
						COLOR_OF(fg),
						COLOR_OF(bg)
						);
				else
					(void) sprintf(tmp, "{%d}", pairnum);
			}
		}
	}
	if (AttrOf(newmode) == A_NORMAL) {
		if (buf[1] != '\0')
			strcat(tmp, "|");
		strcat(tmp, "A_NORMAL");
	}

	_nc_tracing = save_nc_tracing;
	return (strcat(buf,"}"));
}

char *_traceattr(attr_t newmode)
{
	return _traceattr2(0, newmode);
}

/* Trace 'int' return-values */
attr_t _nc_retrace_attr_t(attr_t code)
{
	T((T_RETURN("%s"), _traceattr(code)));
	return code;
}

char *_tracechtype2(int bufnum, chtype ch)
{
char	*buf = _nc_trace_buf(bufnum, BUFSIZ);
char	*found = 0;

    strcpy(buf, "{");
    if (ch & A_ALTCHARSET)
    {
	char	*cp;
	static const	struct {unsigned int val; const char *name;}
	names[] =
	{
	    {'l', "ACS_ULCORNER"},	/* upper left corner */
	    {'m', "ACS_LLCORNER"},	/* lower left corner */
	    {'k', "ACS_URCORNER"},	/* upper right corner */
	    {'j', "ACS_LRCORNER"},	/* lower right corner */
	    {'t', "ACS_LTEE"},		/* tee pointing right */
	    {'u', "ACS_RTEE"},		/* tee pointing left */
	    {'v', "ACS_BTEE"},		/* tee pointing up */
	    {'w', "ACS_TTEE"},		/* tee pointing down */
	    {'q', "ACS_HLINE"},		/* horizontal line */
	    {'x', "ACS_VLINE"},		/* vertical line */
	    {'n', "ACS_PLUS"},		/* large plus or crossover */
	    {'o', "ACS_S1"},		/* scan line 1 */
	    {'s', "ACS_S9"},		/* scan line 9 */
	    {'`', "ACS_DIAMOND"},	/* diamond */
	    {'a', "ACS_CKBOARD"},	/* checker board (stipple) */
	    {'f', "ACS_DEGREE"},	/* degree symbol */
	    {'g', "ACS_PLMINUS"},	/* plus/minus */
	    {'~', "ACS_BULLET"},	/* bullet */
	    {',', "ACS_LARROW"},	/* arrow pointing left */
	    {'+', "ACS_RARROW"},	/* arrow pointing right */
	    {'.', "ACS_DARROW"},	/* arrow pointing down */
	    {'-', "ACS_UARROW"},	/* arrow pointing up */
	    {'h', "ACS_BOARD"},		/* board of squares */
	    {'i', "ACS_LANTERN"},	/* lantern symbol */
	    {'0', "ACS_BLOCK"},		/* solid square block */
	    {'p', "ACS_S3"},		/* scan line 3 */
	    {'r', "ACS_S7"},		/* scan line 7 */
	    {'y', "ACS_LEQUAL"},	/* less/equal */
	    {'z', "ACS_GEQUAL"},	/* greater/equal */
	    {'{', "ACS_PI"},		/* Pi */
	    {'|', "ACS_NEQUAL"},	/* not equal */
	    {'}', "ACS_STERLING"},	/* UK pound sign */
	    {'\0',(char *)0}
	},
	*sp;

	for (cp = acs_chars; cp[0] && cp[1]; cp += 2)
	{
	    if (TextOf(cp[1]) == TextOf(ch))
	    {
		found = cp;
		/* don't exit from loop - there may be redefinitions */
	    }
	}

	if (found != 0)
	{
	    ch = TextOf(*found);
	    for (sp = names; sp->val; sp++)
		if (sp->val == ch)
		{
		    (void) strcat(buf, sp->name);
		    ch &= ~A_ALTCHARSET;
		    break;
		}
	}
    }

    if (found == 0)
	(void) strcat(buf, _tracechar(TextOf(ch)));

    if (AttrOf(ch) != A_NORMAL)
	(void) sprintf(buf + strlen(buf), " | %s", _traceattr2(bufnum+20,AttrOf(ch)));

    strcat(buf, "}");
    return(buf);
}

char *_tracechtype(chtype ch)
{
	return _tracechtype2(0, ch);
}
#else
extern	void _nc_lib_traceatr(void);
	void _nc_lib_traceatr(void) { }
#endif /* TRACE */
