/****************************************************************************
 * Copyright (c) 1998,2000 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 1.30 2000/07/29 18:06:09 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[] =
    {
	/* *INDENT-OFF* */
	{ 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" },
	/* *INDENT-ON* */

    },
	colors[] =
    {
	/* *INDENT-OFF* */
	{ 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" },
	/* *INDENT-ON* */

    };
    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[] =
	{
	    /* *INDENT-OFF* */
	    { '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 }
		/* *INDENT-OFF* */
	},
	    *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);
}

/* Trace 'chtype' return-values */
attr_t
_nc_retrace_chtype(attr_t code)
{
    T((T_RETURN("%s"), _tracechtype(code)));
    return code;
}

#else
extern void _nc_lib_traceatr(void);
void
_nc_lib_traceatr(void)
{
}
#endif /* TRACE */
