gimp/app/core/gimpparasite.c

/* gimpparasite.c: Copyright 1998 Jay Cox <jaycox@earthlink.net> 
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#include <glib.h>
#include <stdio.h>
#include <unistd.h>
#include "parasitelist.h"
#include "gimpparasite.h"
#include "libgimp/parasite.h"
#include "libgimp/gimpenv.h"

static ParasiteList *parasites = NULL;

void 
gimp_init_parasites()
{
  g_return_if_fail(parasites == NULL);
  parasites = parasite_list_new();
  gimp_parasiterc_load();
}

void
gimp_attach_parasite (Parasite *p)
{
  parasite_list_add(parasites, p);
}

void
gimp_detach_parasite (char *name)
{
  parasite_list_remove(parasites, name);
}

Parasite *
gimp_find_parasite (char *name)
{
  return parasite_list_find(parasites, name);
}

static void list_func(char *key, Parasite *p, char ***cur)
{
  *(*cur)++ = (char *) g_strdup (key);
}

char **
gimp_parasite_list (gint *count)
{
  char **list, **cur;

  *count = parasite_list_length (parasites);
  cur = list = (char **) g_malloc (sizeof (char *) * *count);

  parasite_list_foreach (parasites, (GHFunc)list_func, &cur);
  
  return list;
}

void
gimp_parasiterc_save()
{
  FILE *fp;
  guint32 version = 1;
  if (!(fp = fopen(gimp_personal_rc_file ("#parasiterc.tmp"), "w")))
    return;
  version = GINT32_TO_BE(version);
  fwrite(&version, 4, 1, fp);

  parasite_list_save(parasites, fp);

  fclose(fp);
  if (rename(gimp_personal_rc_file ("#parasiterc.tmp"),
	     gimp_personal_rc_file("parasiterc")) != 0)
    unlink(gimp_personal_rc_file ("#parasiterc.tmp"));
}

void
gimp_parasiterc_load()
{
  FILE *fp;
  guint32 version;
  if (!(fp = fopen(gimp_personal_rc_file ("parasiterc"), "r")))
    return;
  fread(&version, 4, 1, fp);
  version = GINT32_FROM_BE(version);
  if (version != 1)
  {
    fclose(fp);
    return;
  }

  parasite_list_load(parasites, fp);

  fclose(fp);
}