PIKApp/plug-ins/imagemap/imap_mru.c

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2023-09-26 00:35:21 +02:00
/*
* This is a plug-in for PIKA.
*
* Generates clickable image maps.
*
* Copyright (C) 1998-1999 Maurits Rijk lpeek.mrijk@consunet.nl
*
* 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 3 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, see <https://www.gnu.org/licenses/>.
*
*/
#include "config.h"
#include <string.h>
#include <gtk/gtk.h>
#include "imap_mru.h"
MRU_t*
mru_create(void)
{
MRU_t *mru = g_new(MRU_t, 1);
mru->list = NULL;
mru->max_size = DEFAULT_MRU_SIZE;
return mru;
}
void
mru_destruct (MRU_t *mru)
{
g_list_free_full (mru->list, (GDestroyNotify) g_free);
g_free (mru);
}
static void
mru_remove_link(MRU_t *mru, GList *link)
{
if (link)
{
g_free(link->data);
mru->list = g_list_remove_link(mru->list, link);
}
}
static GList*
mru_find_link(MRU_t *mru, const gchar *filename)
{
return g_list_find_custom(mru->list, (gpointer) filename,
(GCompareFunc) strcmp);
}
void
mru_add(MRU_t *mru, const gchar *filename)
{
if (g_list_length(mru->list) == mru->max_size)
mru_remove_link(mru, g_list_last(mru->list));
mru->list = g_list_prepend(mru->list, g_strdup(filename));
}
void
mru_remove(MRU_t *mru, const gchar *filename)
{
mru_remove_link(mru, mru_find_link(mru, filename));
}
void
mru_set_first(MRU_t *mru, const gchar *filename)
{
GList *link = mru_find_link(mru, filename);
if (link)
mru->list = g_list_prepend(g_list_remove_link(mru->list, link),
link->data);
else
mru_add(mru, filename);
}
void
mru_set_size(MRU_t *mru, gint size)
{
gint diff;
for (diff = g_list_length(mru->list) - size; diff > 0; diff--)
mru_remove_link(mru, g_list_last(mru->list));
mru->max_size = size;
}
void
mru_write(MRU_t *mru, FILE *out)
{
GList *p;
for (p = mru->list; p; p = p->next)
fprintf(out, "(mru-entry %s)\n", (gchar*) p->data);
}