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/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>
 *
 *
 * Authors:
 *      Chris Lahey <clahey@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#ifndef _GAL_VIEW_SET_H_
#define _GAL_VIEW_SET_H_

#include <glib-object.h>
#include <menus/gal-view-factory.h>

G_BEGIN_DECLS

#define GAL_VIEW_COLLECTION_TYPE        (gal_view_collection_get_type ())
#define GAL_VIEW_COLLECTION(o)          (G_TYPE_CHECK_INSTANCE_CAST ((o), GAL_VIEW_COLLECTION_TYPE, GalViewCollection))
#define GAL_VIEW_COLLECTION_CLASS(k)    (G_TYPE_CHECK_CLASS_CAST((k), GAL_VIEW_COLLECTION_TYPE, GalViewCollectionClass))
#define GAL_IS_VIEW_COLLECTION(o)       (G_TYPE_CHECK_INSTANCE_TYPE ((o), GAL_VIEW_COLLECTION_TYPE))
#define GAL_IS_VIEW_COLLECTION_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), GAL_VIEW_COLLECTION_TYPE))
#define GAL_VIEW_COLLECTION_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), GAL_VIEW_COLLECTION_TYPE, GalViewCollectionClass))

typedef struct GalViewCollectionItem GalViewCollectionItem;

typedef struct {
    GObject base;

    GalViewCollectionItem **view_data;
    gint view_count;

    GList *factory_list;

    GalViewCollectionItem **removed_view_data;
    gint removed_view_count;

    guint loaded : 1;
    guint default_view_built_in : 1;

    gchar *system_dir;
    gchar *local_dir;

    gchar *default_view;

    gchar *title;
} GalViewCollection;

typedef struct {
    GObjectClass parent_class;

    /*
     * Signals
     */
    void (*display_view) (GalViewCollection *collection,
                  GalView    *view);
    void (*changed)      (GalViewCollection *collection);
} GalViewCollectionClass;

struct GalViewCollectionItem {
    GalView *view;
    gchar *id;
    guint changed : 1;
    guint ever_changed : 1;
    guint built_in : 1;
    gchar *filename;
    gchar *title;
    gchar *type;
    GalViewCollection *collection;
    guint view_changed_id;
};

/* Standard functions */
GType                  gal_view_collection_get_type                 (void);
GalViewCollection     *gal_view_collection_new                      (void);

void                   gal_view_collection_set_title                (GalViewCollection *collection,
                                     const gchar        *title);
/* Set up the view collection.  Call these two functions before ever doing load or save and never call them again. */
void                   gal_view_collection_set_storage_directories  (GalViewCollection *collection,
                                     const gchar        *system_dir,
                                     const gchar        *local_dir);
void                   gal_view_collection_add_factory              (GalViewCollection *collection,
                                     GalViewFactory    *factory);

/* Send the display view signal.  This function is deprecated. */
void                   gal_view_collection_display_view             (GalViewCollection *collection,
                                     GalView           *view);

/* Query the view collection. */
gint                   gal_view_collection_get_count                (GalViewCollection *collection);
GalView               *gal_view_collection_get_view                 (GalViewCollection *collection,
                                     gint                n);
GalViewCollectionItem *gal_view_collection_get_view_item            (GalViewCollection *collection,
                                     gint                n);
gint                    gal_view_collection_get_view_index_by_id     (GalViewCollection *collection,
                                     const gchar        *view_id);
gchar                  *gal_view_collection_get_view_id_by_index     (GalViewCollection *collection,
                                     gint                n);

/* Manipulate the view collection */
void                   gal_view_collection_append                   (GalViewCollection *collection,
                                     GalView           *view);
void                   gal_view_collection_delete_view              (GalViewCollection *collection,
                                     gint                i);
void                   gal_view_collection_copy_view                (GalViewCollection *collection,
                                     gint                i);
/* Call set_storage_directories and add factories for anything that
 * might be found there before doing either of these. */
void                   gal_view_collection_load                     (GalViewCollection *collection);
void                   gal_view_collection_save                     (GalViewCollection *collection);
gboolean               gal_view_collection_loaded                   (GalViewCollection *collection);

/* Use factory list to load a GalView file. */
GalView               *gal_view_collection_load_view_from_file      (GalViewCollection *collection,
                                     const gchar        *type,
                                     const gchar        *filename);

/* Returns id of the new view.  These functions are used for
   GalViewInstanceSaveAsDialog. */
const gchar            *gal_view_collection_append_with_title        (GalViewCollection *collection,
                                     const gchar        *title,
                                     GalView           *view);
const gchar            *gal_view_collection_set_nth_view             (GalViewCollection *collection,
                                     gint                i,
                                     GalView           *view);

const gchar            *gal_view_collection_get_default_view         (GalViewCollection *collection);
void                   gal_view_collection_set_default_view         (GalViewCollection *collection,
                                     const gchar        *id);

G_END_DECLS

#endif /* _GAL_VIEW_COLLECTION_H_ */