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gimp/app/core/gimpdatafactory.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpdatafactory.c
* Copyright (C) 2001 Michael Natterer <mitch@gimp.org>
*
* 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 "config.h"
#include <stdlib.h>
#include <string.h>
#include <glib-object.h>
#include "libgimpbase/gimpbase.h"
#include "core-types.h"
#include "config/gimpbaseconfig.h"
#include "config/gimpconfig-path.h"
#include "gimp.h"
#include "gimpcontext.h"
#include "gimpdata.h"
#include "gimpdatafactory.h"
#include "gimpdatalist.h"
#include "gimp-intl.h"
static void gimp_data_factory_class_init (GimpDataFactoryClass *klass);
static void gimp_data_factory_init (GimpDataFactory *factory);
static void gimp_data_factory_finalize (GObject *object);
static gsize gimp_data_factory_get_memsize (GimpObject *object);
static void gimp_data_factory_load_callback (GimpDatafileData *file_data);
static GimpObjectClass *parent_class = NULL;
GType
gimp_data_factory_get_type (void)
{
static GType factory_type = 0;
if (! factory_type)
{
static const GTypeInfo factory_info =
{
sizeof (GimpDataFactoryClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gimp_data_factory_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpDataFactory),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_data_factory_init,
};
factory_type = g_type_register_static (GIMP_TYPE_OBJECT,
"GimpDataFactory",
&factory_info, 0);
}
return factory_type;
}
static void
gimp_data_factory_class_init (GimpDataFactoryClass *klass)
{
GObjectClass *object_class;
GimpObjectClass *gimp_object_class;
object_class = G_OBJECT_CLASS (klass);
gimp_object_class = GIMP_OBJECT_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->finalize = gimp_data_factory_finalize;
gimp_object_class->get_memsize = gimp_data_factory_get_memsize;
}
static void
gimp_data_factory_init (GimpDataFactory *factory)
{
factory->gimp = NULL;
factory->container = NULL;
factory->path_property_name = NULL;
factory->loader_entries = NULL;
factory->n_loader_entries = 0;
factory->data_new_func = NULL;
factory->data_get_standard_func = NULL;
}
static void
gimp_data_factory_finalize (GObject *object)
{
GimpDataFactory *factory;
factory = GIMP_DATA_FACTORY (object);
if (factory->container)
{
g_object_unref (factory->container);
factory->container = NULL;
}
if (factory->path_property_name)
{
g_free (factory->path_property_name);
factory->path_property_name = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gsize
gimp_data_factory_get_memsize (GimpObject *object)
{
GimpDataFactory *factory;
gsize memsize = 0;
factory = GIMP_DATA_FACTORY (object);
memsize += gimp_object_get_memsize (GIMP_OBJECT (factory->container));
return memsize + GIMP_OBJECT_CLASS (parent_class)->get_memsize (object);
}
GimpDataFactory *
gimp_data_factory_new (Gimp *gimp,
GType data_type,
const gchar *path_property_name,
const GimpDataFactoryLoaderEntry *loader_entries,
gint n_loader_entries,
GimpDataNewFunc new_func,
GimpDataGetStandardFunc standard_func)
{
GimpDataFactory *factory;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
g_return_val_if_fail (g_type_is_a (data_type, GIMP_TYPE_DATA), NULL);
g_return_val_if_fail (path_property_name != NULL, NULL);
g_return_val_if_fail (loader_entries != NULL, NULL);
g_return_val_if_fail (n_loader_entries > 0, NULL);
factory = g_object_new (GIMP_TYPE_DATA_FACTORY, NULL);
factory->gimp = gimp;
factory->container = gimp_data_list_new (data_type);
factory->path_property_name = g_strdup (path_property_name);
factory->loader_entries = loader_entries;
factory->n_loader_entries = n_loader_entries;
factory->data_new_func = new_func;
factory->data_get_standard_func = standard_func;
return factory;
}
void
gimp_data_factory_data_init (GimpDataFactory *factory,
gboolean no_data /* FIXME */)
{
gchar *path = NULL;
g_return_if_fail (GIMP_IS_DATA_FACTORY (factory));
gimp_container_freeze (factory->container);
gimp_data_factory_data_free (factory);
g_object_get (factory->gimp->config,
factory->path_property_name, &path,
NULL);
if (path && strlen (path))
{
gchar *tmp;
tmp = gimp_config_path_expand (path, TRUE, NULL);
g_free (path);
path = tmp;
gimp_datafiles_read_directories (path,
G_FILE_TEST_EXISTS,
gimp_data_factory_load_callback,
factory);
}
g_free (path);
gimp_container_thaw (factory->container);
}
void
gimp_data_factory_data_save (GimpDataFactory *factory)
{
gchar *path = NULL;
g_return_if_fail (GIMP_IS_DATA_FACTORY (factory));
if (gimp_container_num_children (factory->container) == 0)
return;
g_object_get (factory->gimp->config,
factory->path_property_name, &path,
NULL);
if (path && strlen (path))
{
GimpList *gimp_list;
GList *list;
gchar *tmp;
tmp = gimp_config_path_expand (path, TRUE, NULL);
g_free (path);
path = tmp;
gimp_list = GIMP_LIST (factory->container);
gimp_container_freeze (factory->container);
for (list = gimp_list->list; list; list = g_list_next (list))
{
GimpData *data;
data = GIMP_DATA (list->data);
if (! data->filename)
gimp_data_create_filename (data, GIMP_OBJECT (data)->name, path);
if (data->dirty)
{
GError *error = NULL;
if (! gimp_data_save (data, &error))
{
/* check if there actually was an error (no error
* means the data class does not implement save)
*/
if (error)
{
g_message (_("Warning: Failed to save data:\n%s"),
error->message);
g_clear_error (&error);
}
}
}
}
gimp_container_thaw (factory->container);
}
g_free (path);
}
void
gimp_data_factory_data_free (GimpDataFactory *factory)
{
GimpList *list;
g_return_if_fail (GIMP_IS_DATA_FACTORY (factory));
if (gimp_container_num_children (factory->container) == 0)
return;
list = GIMP_LIST (factory->container);
gimp_container_freeze (factory->container);
if (list->list)
{
if (GIMP_DATA (list->list->data)->internal)
{
/* if there are internal objects in the list, skip them */
GList *glist;
for (glist = list->list; glist; glist = g_list_next (glist))
{
if (glist->next && ! GIMP_DATA (glist->next->data)->internal)
{
while (glist->next)
{
gimp_container_remove (factory->container,
GIMP_OBJECT (glist->next->data));
}
break;
}
}
}
else
{
/* otherwise delete everything */
while (list->list)
{
gimp_container_remove (factory->container,
GIMP_OBJECT (list->list->data));
}
}
}
gimp_container_thaw (factory->container);
}
GimpData *
gimp_data_factory_data_new (GimpDataFactory *factory,
const gchar *name)
{
g_return_val_if_fail (GIMP_IS_DATA_FACTORY (factory), NULL);
g_return_val_if_fail (name != NULL, NULL);
if (factory->data_new_func)
{
GimpBaseConfig *base_config;
GimpData *data;
base_config = GIMP_BASE_CONFIG (factory->gimp->config);
data = factory->data_new_func (name, base_config->stingy_memory_use);
gimp_container_add (factory->container, GIMP_OBJECT (data));
g_object_unref (data);
return data;
}
return NULL;
}
GimpData *
gimp_data_factory_data_duplicate (GimpDataFactory *factory,
GimpData *data)
{
GimpBaseConfig *base_config;
GimpData *new_data;
g_return_val_if_fail (GIMP_IS_DATA_FACTORY (factory), NULL);
g_return_val_if_fail (GIMP_IS_DATA (data), NULL);
base_config = GIMP_BASE_CONFIG (factory->gimp->config);
new_data = gimp_data_duplicate (data, base_config->stingy_memory_use);
if (new_data)
{
const gchar *name;
gchar *ext;
gint copy_len;
gint number;
gchar *new_name;
name = gimp_object_get_name (GIMP_OBJECT (data));
ext = strrchr (name, '#');
copy_len = strlen (_("copy"));
if ((strlen (name) >= copy_len &&
strcmp (&name[strlen (name) - copy_len], _("copy")) == 0) ||
(ext && (number = atoi (ext + 1)) > 0 &&
((gint) (log10 (number) + 1)) == strlen (ext + 1)))
{
/* don't have redundant "copy"s */
new_name = g_strdup (name);
}
else
{
new_name = g_strdup_printf (_("%s copy"), name);
}
gimp_object_set_name (GIMP_OBJECT (new_data), new_name);
g_free (new_name);
gimp_container_add (factory->container, GIMP_OBJECT (new_data));
g_object_unref (new_data);
}
return new_data;
}
GimpData *
gimp_data_factory_data_get_standard (GimpDataFactory *factory)
{
g_return_val_if_fail (GIMP_IS_DATA_FACTORY (factory), NULL);
if (factory->data_get_standard_func)
return factory->data_get_standard_func ();
return NULL;
}
static void
gimp_data_factory_load_callback (GimpDatafileData *file_data)
{
GimpDataFactory *factory;
gint i;
factory = (GimpDataFactory *) file_data->user_data;
for (i = 0; i < factory->n_loader_entries; i++)
{
if (factory->loader_entries[i].extension)
{
if (gimp_datafiles_check_extension (file_data->filename,
factory->loader_entries[i].extension))
{
goto insert;
}
}
else
{
g_message (_("Trying legacy loader on\n"
"file '%s'\n"
"with unknown extension."),
file_data->filename);
goto insert;
}
}
return;
insert:
{
GimpBaseConfig *base_config;
GimpData *data;
GError *error = NULL;
base_config = GIMP_BASE_CONFIG (factory->gimp->config);
data = (GimpData *)
(* factory->loader_entries[i].load_func) (file_data->filename,
base_config->stingy_memory_use,
&error);
if (! data)
{
g_message (_("Warning: Failed to load data:\n%s"),
error->message);
g_clear_error (&error);
}
else
{
gimp_container_add (factory->container, GIMP_OBJECT (data));
g_object_unref (data);
}
}
}
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