PIKApp/app/plug-in/pikapluginmanager-data.c

138 lines
3.6 KiB
C

/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* pikapluginmanager-data.c
*
* 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 <gio/gio.h>
#include "plug-in-types.h"
#include "pikapluginmanager.h"
#include "pikapluginmanager-data.h"
typedef struct _PikaPlugInData PikaPlugInData;
struct _PikaPlugInData
{
gchar *identifier;
gint32 bytes;
guint8 *data;
};
/* public functions */
void
pika_plug_in_manager_data_free (PikaPlugInManager *manager)
{
g_return_if_fail (PIKA_IS_PLUG_IN_MANAGER (manager));
if (manager->data_list)
{
GList *list;
for (list = manager->data_list;
list;
list = g_list_next (list))
{
PikaPlugInData *data = list->data;
g_free (data->identifier);
g_free (data->data);
g_slice_free (PikaPlugInData, data);
}
g_list_free (manager->data_list);
manager->data_list = NULL;
}
}
void
pika_plug_in_manager_set_data (PikaPlugInManager *manager,
const gchar *identifier,
gint32 bytes,
const guint8 *data)
{
PikaPlugInData *plug_in_data;
GList *list;
g_return_if_fail (PIKA_IS_PLUG_IN_MANAGER (manager));
g_return_if_fail (identifier != NULL);
g_return_if_fail (bytes > 0);
g_return_if_fail (data != NULL);
for (list = manager->data_list; list; list = g_list_next (list))
{
plug_in_data = list->data;
if (! strcmp (plug_in_data->identifier, identifier))
break;
}
/* If there isn't already data with the specified identifier, create one */
if (list == NULL)
{
plug_in_data = g_slice_new0 (PikaPlugInData);
plug_in_data->identifier = g_strdup (identifier);
manager->data_list = g_list_prepend (manager->data_list, plug_in_data);
}
else
{
g_free (plug_in_data->data);
}
plug_in_data->bytes = bytes;
plug_in_data->data = g_memdup2 (data, bytes);
}
const guint8 *
pika_plug_in_manager_get_data (PikaPlugInManager *manager,
const gchar *identifier,
gint32 *bytes)
{
GList *list;
g_return_val_if_fail (PIKA_IS_PLUG_IN_MANAGER (manager), NULL);
g_return_val_if_fail (identifier != NULL, NULL);
g_return_val_if_fail (bytes != NULL, NULL);
*bytes = 0;
for (list = manager->data_list; list; list = g_list_next (list))
{
PikaPlugInData *plug_in_data = list->data;
if (! strcmp (plug_in_data->identifier, identifier))
{
*bytes = plug_in_data->bytes;
return plug_in_data->data;
}
}
return NULL;
}