mirror of https://github.com/GNOME/gimp.git
304 lines
7.5 KiB
C
304 lines
7.5 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <gtk/gtk.h>
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#include "libgimpwidgets/gimpwidgets.h"
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#include "apptypes.h"
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#include "datafiles.h"
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#include "gimpdata.h"
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#include "gimpdatalist.h"
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#include "gimpdatafactory.h"
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#include "gimpcontext.h"
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#include "gimpmarshal.h"
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#include "libgimp/gimpintl.h"
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static void gimp_data_factory_class_init (GimpDataFactoryClass *klass);
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static void gimp_data_factory_init (GimpDataFactory *factory);
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static void gimp_data_factory_destroy (GtkObject *object);
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static void gimp_data_factory_data_load_callback (const gchar *filename,
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gpointer callback_data);
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static GimpObjectClass *parent_class = NULL;
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GtkType
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gimp_data_factory_get_type (void)
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{
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static guint factory_type = 0;
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if (! factory_type)
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{
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GtkTypeInfo factory_info =
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{
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"GimpDataFactory",
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sizeof (GimpDataFactory),
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sizeof (GimpDataFactoryClass),
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(GtkClassInitFunc) gimp_data_factory_class_init,
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(GtkObjectInitFunc) gimp_data_factory_init,
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/* reserved_1 */ NULL,
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/* reserved_2 */ NULL,
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(GtkClassInitFunc) NULL
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};
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factory_type = gtk_type_unique (GIMP_TYPE_OBJECT, &factory_info);
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}
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return factory_type;
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}
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static void
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gimp_data_factory_class_init (GimpDataFactoryClass *klass)
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{
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GtkObjectClass *object_class;
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object_class = (GtkObjectClass *) klass;
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parent_class = gtk_type_class (GTK_TYPE_VBOX);
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object_class->destroy = gimp_data_factory_destroy;
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}
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static void
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gimp_data_factory_init (GimpDataFactory *factory)
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{
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factory->container = NULL;
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factory->data_path = NULL;
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factory->loader_entries = NULL;
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factory->n_loader_entries = 0;
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factory->data_new_func = NULL;
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factory->data_get_standard_func = NULL;
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}
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static void
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gimp_data_factory_destroy (GtkObject *object)
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{
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GimpDataFactory *factory;
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factory = GIMP_DATA_FACTORY (object);
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if (factory->container)
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gtk_object_unref (GTK_OBJECT (factory->container));
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if (GTK_OBJECT_CLASS (parent_class)->destroy)
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GTK_OBJECT_CLASS (parent_class)->destroy (object);
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}
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GimpDataFactory *
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gimp_data_factory_new (GtkType data_type,
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const gchar **data_path,
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const GimpDataFactoryLoaderEntry *loader_entries,
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gint n_loader_entries,
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GimpDataNewFunc new_func,
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GimpDataGetStandardFunc standard_func)
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{
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GimpDataFactory *factory;
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g_return_val_if_fail (gtk_type_is_a (data_type, GIMP_TYPE_DATA), NULL);
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g_return_val_if_fail (data_path != NULL, NULL);
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g_return_val_if_fail (loader_entries != NULL, NULL);
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g_return_val_if_fail (n_loader_entries > 0, NULL);
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factory = gtk_type_new (GIMP_TYPE_DATA_FACTORY);
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factory->container = GIMP_CONTAINER (gimp_data_list_new (data_type));
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gtk_object_ref (GTK_OBJECT (factory->container));
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gtk_object_sink (GTK_OBJECT (factory->container));
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factory->data_path = data_path;
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factory->loader_entries = loader_entries;
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factory->n_loader_entries = n_loader_entries;
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factory->data_new_func = new_func;
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factory->data_get_standard_func = standard_func;
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return factory;
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}
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void
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gimp_data_factory_data_init (GimpDataFactory *factory,
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gboolean no_data)
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{
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g_return_if_fail (factory != NULL);
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g_return_if_fail (GIMP_IS_DATA_FACTORY (factory));
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gimp_container_freeze (factory->container);
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if (gimp_container_num_children (factory->container) > 0)
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gimp_data_factory_data_free (factory);
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if (factory->data_path && *factory->data_path)
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{
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datafiles_read_directories (*factory->data_path, 0,
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gimp_data_factory_data_load_callback,
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factory);
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}
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gimp_container_thaw (factory->container);
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}
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void
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gimp_data_factory_data_save (GimpDataFactory *factory)
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{
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GimpList *gimp_list;
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GList *list;
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g_return_if_fail (factory != NULL);
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g_return_if_fail (GIMP_IS_DATA_FACTORY (factory));
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if (gimp_container_num_children (factory->container) == 0)
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return;
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if (! (factory->data_path && *factory->data_path))
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return;
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gimp_list = GIMP_LIST (factory->container);
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gimp_container_freeze (factory->container);
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for (list = gimp_list->list; list; list = g_list_next (list))
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{
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GimpData *data;
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data = GIMP_DATA (list->data);
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if (! data->filename)
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gimp_data_create_filename (data,
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GIMP_OBJECT (data)->name,
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*factory->data_path);
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if (data->dirty)
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gimp_data_save (data);
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}
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gimp_container_thaw (factory->container);
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}
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void
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gimp_data_factory_data_free (GimpDataFactory *factory)
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{
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GimpList *list;
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g_return_if_fail (factory != NULL);
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g_return_if_fail (GIMP_IS_DATA_FACTORY (factory));
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if (gimp_container_num_children (factory->container) == 0)
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return;
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list = GIMP_LIST (factory->container);
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gimp_container_freeze (factory->container);
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gimp_data_factory_data_save (factory);
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while (list->list)
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{
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gimp_container_remove (factory->container,
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GIMP_OBJECT (list->list->data));
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}
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gimp_container_thaw (factory->container);
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}
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GimpData *
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gimp_data_factory_data_new (GimpDataFactory *factory,
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const gchar *name)
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{
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g_return_val_if_fail (factory != NULL, NULL);
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g_return_val_if_fail (GIMP_IS_DATA_FACTORY (factory), NULL);
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g_return_val_if_fail (name != NULL, NULL);
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if (factory->data_new_func)
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{
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GimpData *data;
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data = factory->data_new_func (name);
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gimp_container_add (factory->container, GIMP_OBJECT (data));
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return data;
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}
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return NULL;
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}
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GimpData *
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gimp_data_factory_data_get_standard (GimpDataFactory *factory)
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{
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g_return_val_if_fail (factory != NULL, NULL);
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g_return_val_if_fail (GIMP_IS_DATA_FACTORY (factory), NULL);
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if (factory->data_get_standard_func)
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return factory->data_get_standard_func ();
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return NULL;
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}
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static void
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gimp_data_factory_data_load_callback (const gchar *filename,
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gpointer callback_data)
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{
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GimpDataFactory *factory;
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gint i;
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factory = (GimpDataFactory *) callback_data;
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for (i = 0; i < factory->n_loader_entries; i++)
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{
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if (factory->loader_entries[i].extension)
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{
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if (datafiles_check_extension (filename,
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factory->loader_entries[i].extension))
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{
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goto insert;
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}
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}
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else
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{
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g_warning ("%s(): trying legacy loader on file with unknown "
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"extension: %s",
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G_GNUC_FUNCTION, filename);
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goto insert;
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}
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}
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return;
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insert:
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{
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GimpData *data;
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data = (GimpData *) (* factory->loader_entries[i].load_func) (filename);
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if (! data)
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g_message (_("Warning: Failed to load data from\n\"%s\""), filename);
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else
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gimp_container_add (factory->container, GIMP_OBJECT (data));
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}
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}
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