/*
 * 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 "xpmP.h"

/*
 * 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;
 }
}
