/*
 * Copyright (C) 1989-95 GROUPE BULL
 *
 * 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, 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
 * GROUPE BULL 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 of GROUPE BULL shall not be
 * used in advertising or otherwise to promote the sale, use or other dealings
 * in this Software without prior written authorization from GROUPE BULL.
 */

/*****************************************************************************\
*  Info.c:                                                                    *
*                                                                             *
*  XPM library                                                                *
*  Functions related to the XpmInfo structure.                                *
*                                                                             *
*  Developed by Arnaud Le Hors                                                *
\*****************************************************************************/

#include <LTconfig.h>

/* amai: we can't include DebugUtil.h before system headers.
   So we assume that system headers are idempotent, #include
   all of those used below here and then try with our
   DebugUtil.h! */
#include <stdio.h>
#include <string.h>

#include <ctype.h>
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#if defined(FOR_MSW) || defined(WIN32)
#include <io.h>
#endif

#include <X11/Intrinsic.h> /* Avoid re-definition of Pixel-type */

#include <Xm/XpmP.h>
#include <XmI/XpmI.h>

/* #if !defined(WITH_DBMALLOC) && !defined(WITH_DMALLOC) */
#include <XmI/DebugUtil.h>

#ifdef HAVE_STRLCAT
# define STRLCAT(dst, src, dstsize) { \
 	if (strlcat(dst, src, dstsize) >= (dstsize)) \
	    return (XpmFileInvalid); }
# define STRLCPY(dst, src, dstsize) { \
  	if (strlcpy(dst, src, dstsize) >= (dstsize)) \
	    return (XpmFileInvalid); }
#else
# define STRLCAT(dst, src, dstsize) { \
	if ((strlen(dst) + strlen(src)) < (dstsize)) \
 	    strcat(dst, src); \
	else return (XpmFileInvalid); }
# define STRLCPY(dst, src, dstsize) { \
	if (strlen(src) < (dstsize)) \
 	    strcpy(dst, src); \
	else return (XpmFileInvalid); }
#endif

/*
 * Init returned data to free safely later on
 */
void
xpmInitXpmInfo(info)
    XpmInfo *info;
{
    if (info) {
	info->hints_cmt = NULL;
	info->colors_cmt = NULL;
	info->pixels_cmt = NULL;
	info->extensions = NULL;
	info->nextensions = 0;
    }
}

/*
 * Free the XpmInfo data which have been allocated
 */
void
XpmFreeXpmInfo(info)
    XpmInfo *info;
{
    if (info) {
	if (info->valuemask & XpmComments) {
	    if (info->hints_cmt) {
		XpmFree(info->hints_cmt);
		info->hints_cmt = NULL;
	    }
	    if (info->colors_cmt) {
		XpmFree(info->colors_cmt);
		info->colors_cmt = NULL;
	    }
	    if (info->pixels_cmt) {
		XpmFree(info->pixels_cmt);
		info->pixels_cmt = NULL;
	    }
	}
	if (info->valuemask & XpmReturnExtensions && info->nextensions) {
	    XpmFreeExtensions(info->extensions, info->nextensions);
	    info->extensions = NULL;
	    info->nextensions = 0;
	}
	info->valuemask = 0;
    }
}

/*
 * Set the XpmInfo valuemask to retrieve required info
 */
void
xpmSetInfoMask(info, attributes)
    XpmInfo *info;
    XpmAttributes *attributes;
{
    info->valuemask = 0;
    if (attributes->valuemask & XpmReturnInfos)
	info->valuemask |= XpmReturnComments;
    if (attributes->valuemask & XpmReturnExtensions)
	info->valuemask |= XpmReturnExtensions;
}

/*
 * Fill in the XpmInfo with the XpmAttributes
 */
void
xpmSetInfo(info, attributes)
    XpmInfo *info;
    XpmAttributes *attributes;
{
    info->valuemask = 0;
    if (attributes->valuemask & XpmInfos) {
	info->valuemask |= XpmComments | XpmColorTable;
	info->hints_cmt = attributes->hints_cmt;
	info->colors_cmt = attributes->colors_cmt;
	info->pixels_cmt = attributes->pixels_cmt;
    }
    if (attributes->valuemask & XpmExtensions) {
	info->valuemask |= XpmExtensions;
	info->extensions = attributes->extensions;
	info->nextensions = attributes->nextensions;
    }
    if (attributes->valuemask & XpmHotspot) {
	info->valuemask |= XpmHotspot;
	info->x_hotspot = attributes->x_hotspot;
	info->y_hotspot = attributes->y_hotspot;
    }
}