IABSD.fr/xenocara/lib/libXpm/src/Info.c

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• Author : matthieu
  Date : 2006-11-25 17:32:04
  Hash : d8e9d107
  Message : import from X.Org 7.1

• lib/libXpm/src/Info.c

• /*
   * 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                                                *
  \*****************************************************************************/
  
  #ifdef HAVE_CONFIG_H
  #include <config.h>
  #endif
  #include "XpmI.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;
      }
  }