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authorChristopher James Lahey <clahey@ximian.com>2002-02-01 05:47:00 +0800
committerChris Lahey <clahey@src.gnome.org>2002-02-01 05:47:00 +0800
commit3263cd26212cfeaa820882499ffad95f67937b40 (patch)
tree51fea90edc348d4f114a9ea07caca3ad1b02bc72 /widgets
parenta3bd2634b10cbeaa0dd82cdb37c9007476977050 (diff)
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Added gal-view-instance.c and gal-view-instance.h.
2002-01-31 Christopher James Lahey <clahey@ximian.com> * Makefile.am: Added gal-view-instance.c and gal-view-instance.h. * gal-view-collection.c, gal-view-collection.h (gal_view_collection_load_view_from_file): Factored out this function so that it can be used outside of gal-view-collection.c. (gal_view_collection_get_view_index_by_id, gal_view_collection_get_view_id_by_index, gal_view_collection_loaded): Added these functions. * gal-view-instance.c, gal-view-instance.h: New class representing a single folder of a particular type of folder. svn path=/trunk/; revision=15544
Diffstat (limited to 'widgets')
-rw-r--r--widgets/menus/gal-view-collection.c178
-rw-r--r--widgets/menus/gal-view-collection.h36
-rw-r--r--widgets/menus/gal-view-instance.c338
-rw-r--r--widgets/menus/gal-view-instance.h93
4 files changed, 573 insertions, 72 deletions
diff --git a/widgets/menus/gal-view-collection.c b/widgets/menus/gal-view-collection.c
index fe555ee5bd..89cd4deab7 100644
--- a/widgets/menus/gal-view-collection.c
+++ b/widgets/menus/gal-view-collection.c
@@ -88,6 +88,61 @@ gal_view_collection_item_free (GalViewCollectionItem *item)
g_free(item);
}
+static char *
+gal_view_generate_string (GalViewCollection *collection,
+ GalView *view,
+ int which)
+{
+ char *ret_val;
+ char *pointer;
+
+ if (which == 1)
+ ret_val = g_strdup(gal_view_get_title(view));
+ else
+ ret_val = g_strdup_printf("%s_%d", gal_view_get_title(view), which);
+ for (pointer = ret_val; *pointer; pointer++) {
+ if (!isalnum((guint) *pointer)) {
+ *pointer = '_';
+ }
+ }
+ return ret_val;
+}
+
+static gint
+gal_view_check_string (GalViewCollection *collection,
+ char *string)
+{
+ int i;
+
+ if (!strcmp (string, "current_view"))
+ return FALSE;
+
+ for (i = 0; i < collection->view_count; i++) {
+ if (!strcmp(string, collection->view_data[i]->id))
+ return FALSE;
+ }
+ for (i = 0; i < collection->removed_view_count; i++) {
+ if (!strcmp(string, collection->removed_view_data[i]->id))
+ return FALSE;
+ }
+ return TRUE;
+}
+
+static char *
+gal_view_generate_id (GalViewCollection *collection,
+ GalView *view)
+{
+ int i;
+ for (i = 1; TRUE; i++) {
+ char *try;
+
+ try = gal_view_generate_string(collection, view, i);
+ if (gal_view_check_string(collection, try))
+ return try;
+ g_free(try);
+ }
+}
+
static void
gal_view_collection_destroy (GtkObject *object)
{
@@ -154,6 +209,8 @@ gal_view_collection_init (GalViewCollection *collection)
collection->system_dir = NULL;
collection->local_dir = NULL;
+
+ collection->loaded = FALSE;
}
/**
@@ -255,6 +312,40 @@ view_changed (GalView *view,
gal_view_collection_changed(item->collection);
}
+/* Use factory list to load a GalView file. */
+static GalView *
+gal_view_collection_real_load_view_from_file (GalViewCollection *collection, const char *type, const char *title, const char *dir, const char *filename)
+{
+ GalViewFactory *factory;
+ GList *factories;
+
+ factory = NULL;
+ for (factories = collection->factory_list; factories; factories = factories->next) {
+ if (type && !strcmp(gal_view_factory_get_type_code(factories->data), type)) {
+ factory = factories->data;
+ break;
+ }
+ }
+ if (factory) {
+ char *fullpath;
+ GalView *view;
+
+ fullpath = g_concat_dir_and_file(dir, filename);
+ view = gal_view_factory_new_view (factory, title);
+ gal_view_set_title (view, title);
+ gal_view_load(view, fullpath);
+ g_free(fullpath);
+ return view;
+ }
+ return NULL;
+}
+
+GalView *
+gal_view_collection_load_view_from_file (GalViewCollection *collection, const char *type, const char *filename)
+{
+ return gal_view_collection_real_load_view_from_file (collection, type, "", collection->local_dir, filename);
+}
+
static GalViewCollectionItem *
load_single_file (GalViewCollection *collection,
gchar *dir,
@@ -273,28 +364,11 @@ load_single_file (GalViewCollection *collection,
item->collection = collection;
if (item->filename) {
- GalViewFactory *factory;
- GList *factories;
-
- factory = NULL;
- for (factories = collection->factory_list; factories; factories = factories->next) {
- if (item->type && !strcmp(gal_view_factory_get_type_code(factories->data), item->type)) {
- factory = factories->data;
- break;
- }
- }
- if (factory) {
- char *filename;
-
- filename = g_concat_dir_and_file(dir, item->filename);
- item->view = gal_view_factory_new_view (factory, item->title);
- gal_view_load(item->view, filename);
- gal_view_set_title (item->view, item->title);
+ item->view = gal_view_collection_real_load_view_from_file (collection, item->type, item->title, dir, item->filename);
+ if (item->view) {
gtk_signal_connect(GTK_OBJECT(item->view), "changed",
GTK_SIGNAL_FUNC(view_changed), item);
- g_free(filename);
}
-
}
return item;
}
@@ -373,9 +447,13 @@ gal_view_collection_load (GalViewCollection *collection)
g_return_if_fail (GAL_IS_VIEW_COLLECTION (collection));
g_return_if_fail (collection->local_dir != NULL);
g_return_if_fail (collection->system_dir != NULL);
+ g_return_if_fail (!collection->loaded);
load_single_dir(collection, collection->local_dir, TRUE);
load_single_dir(collection, collection->system_dir, FALSE);
+ gal_view_collection_changed(collection);
+
+ collection->loaded = TRUE;
}
/**
@@ -403,6 +481,7 @@ gal_view_collection_save (GalViewCollection *collection)
doc = xmlNewDoc("1.0");
root = xmlNewNode(NULL, "GalViewCollection");
xmlDocSetRootElement(doc, root);
+
for (i = 0; i < collection->view_count; i++) {
xmlNode *child;
GalViewCollectionItem *item;
@@ -494,58 +573,29 @@ gal_view_collection_get_view_item (GalViewCollection *collection,
return collection->view_data[n];
}
-static char *
-gal_view_generate_string (GalViewCollection *collection,
- GalView *view,
- int which)
-{
- char *ret_val;
- char *pointer;
-
- if (which == 1)
- ret_val = g_strdup(gal_view_get_title(view));
- else
- ret_val = g_strdup_printf("%s_%d", gal_view_get_title(view), which);
- for (pointer = ret_val; *pointer; pointer++) {
- if (!isalnum((guint) *pointer)) {
- *pointer = '_';
- }
- }
- return ret_val;
-}
-
-static gint
-gal_view_check_string (GalViewCollection *collection,
- char *string)
+int
+gal_view_collection_get_view_index_by_id (GalViewCollection *collection, const char *view_id)
{
int i;
-
for (i = 0; i < collection->view_count; i++) {
- if (!strcmp(string, collection->view_data[i]->id))
- return FALSE;
+ if (!strcmp (collection->view_data[i]->id, view_id))
+ return i;
}
- for (i = 0; i < collection->removed_view_count; i++) {
- if (!strcmp(string, collection->removed_view_data[i]->id))
- return FALSE;
- }
- return TRUE;
+ return -1;
}
-static char *
-gal_view_generate_id (GalViewCollection *collection,
- GalView *view)
+char *
+gal_view_collection_get_view_id_by_index (GalViewCollection *collection, int n)
{
- int i;
- for (i = 1; TRUE; i++) {
- char *try;
+ g_return_val_if_fail (collection != NULL, NULL);
+ g_return_val_if_fail (GAL_IS_VIEW_COLLECTION (collection), NULL);
+ g_return_val_if_fail(n < collection->view_count, NULL);
+ g_return_val_if_fail(n >= 0, NULL);
- try = gal_view_generate_string(collection, view, i);
- if (gal_view_check_string(collection, try))
- return try;
- g_free(try);
- }
+ return g_strdup (collection->view_data[n]->id);
}
+
void
gal_view_collection_append (GalViewCollection *collection,
GalView *view)
@@ -638,3 +688,9 @@ gal_view_collection_copy_view (GalViewCollection *collection,
gal_view_collection_changed(collection);
}
+
+gboolean
+gal_view_collection_loaded (GalViewCollection *collection)
+{
+ return collection->loaded;
+}
diff --git a/widgets/menus/gal-view-collection.h b/widgets/menus/gal-view-collection.h
index 9df00557cd..42ecf4d550 100644
--- a/widgets/menus/gal-view-collection.h
+++ b/widgets/menus/gal-view-collection.h
@@ -26,10 +26,9 @@
#include <gtk/gtkobject.h>
#include <gal/menus/gal-view-factory.h>
+#include <libgnome/gnome-defs.h>
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
+BEGIN_GNOME_DECLS
#define GAL_VIEW_COLLECTION_TYPE (gal_view_collection_get_type ())
@@ -45,11 +44,14 @@ typedef struct {
GalViewCollectionItem **view_data;
int view_count;
+
GList *factory_list;
GalViewCollectionItem **removed_view_data;
int removed_view_count;
+ guint loaded : 1;
+
char *system_dir;
char *local_dir;
} GalViewCollection;
@@ -68,9 +70,9 @@ typedef struct {
struct GalViewCollectionItem {
GalView *view;
char *id;
- gboolean changed;
- gboolean ever_changed;
- gboolean built_in;
+ guint changed : 1;
+ guint ever_changed : 1;
+ guint built_in : 1;
char *filename;
char *title;
char *type;
@@ -81,22 +83,30 @@ struct GalViewCollectionItem {
GtkType gal_view_collection_get_type (void);
GalViewCollection *gal_view_collection_new (void);
-/* Set up the view collection */
+/* Set up the view collection. Call these three functions before ever doing load or save and never call them again. */
void gal_view_collection_set_storage_directories (GalViewCollection *collection,
const char *system_dir,
const char *local_dir);
void gal_view_collection_add_factory (GalViewCollection *collection,
GalViewFactory *factory);
-/* Send the display view signal. */
+/* 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,
int n);
GalViewCollectionItem *gal_view_collection_get_view_item (GalViewCollection *collection,
int n);
+int gal_view_collection_get_view_index_by_id (GalViewCollection *collection,
+ const char *view_id);
+char *gal_view_collection_get_view_id_by_index (GalViewCollection *collection,
+ int n);
+/* Manipulate the view collection */
void gal_view_collection_append (GalViewCollection *collection,
GalView *view);
void gal_view_collection_delete_view (GalViewCollection *collection,
@@ -107,11 +117,15 @@ void gal_view_collection_copy_view (GalViewColl
* 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 char *type,
+ const char *filename);
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
+END_GNOME_DECLS
#endif /* _GAL_VIEW_COLLECTION_H_ */
diff --git a/widgets/menus/gal-view-instance.c b/widgets/menus/gal-view-instance.c
new file mode 100644
index 0000000000..0deaf91c60
--- /dev/null
+++ b/widgets/menus/gal-view-instance.c
@@ -0,0 +1,338 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/*
+ * gal-view-instance.c
+ * Copyright 2000, 2001, Ximian, Inc.
+ *
+ * Authors:
+ * Chris Lahey <clahey@ximian.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License, version 2, as published by the Free Software Foundation.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#include <config.h>
+
+#include <util/e-i18n.h>
+#include <ctype.h>
+#include <string.h>
+#include <gtk/gtksignal.h>
+#include <gnome-xml/parser.h>
+#include <libgnome/gnome-defs.h>
+#include <libgnome/gnome-util.h>
+#include <gal/util/e-util.h>
+#include <gal/util/e-xml-utils.h>
+#include <gal/widgets/e-unicode.h>
+#include "gal-view-instance.h"
+
+#define GVI_CLASS(e) ((GalViewInstanceClass *)((GtkObject *)e)->klass)
+
+#define PARENT_TYPE gtk_object_get_type ()
+
+static GtkObjectClass *gal_view_instance_parent_class;
+
+enum {
+ DISPLAY_VIEW,
+ CHANGED,
+ LAST_SIGNAL
+};
+
+static guint gal_view_instance_signals [LAST_SIGNAL] = { 0, };
+
+static void
+gal_view_instance_changed (GalViewInstance *instance)
+{
+ g_return_if_fail (instance != NULL);
+ g_return_if_fail (GAL_IS_VIEW_INSTANCE (instance));
+
+ gtk_signal_emit (GTK_OBJECT (instance),
+ gal_view_instance_signals [CHANGED]);
+}
+
+static void
+gal_view_instance_display_view (GalViewInstance *instance, GalView *view)
+{
+ g_return_if_fail (instance != NULL);
+ g_return_if_fail (GAL_IS_VIEW_INSTANCE (instance));
+
+ gtk_signal_emit (GTK_OBJECT (instance),
+ gal_view_instance_signals [DISPLAY_VIEW],
+ view);
+}
+
+static void
+gal_view_instance_destroy (GtkObject *object)
+{
+ GalViewInstance *instance = GAL_VIEW_INSTANCE(object);
+
+ if (instance->collection)
+ gtk_object_unref (GTK_OBJECT (instance->collection));
+
+ g_free (instance->instance_id);
+ g_free (instance->custom_filename);
+ g_free (instance->current_view_filename);
+
+ g_free (instance->current_title);
+ g_free (instance->current_type);
+ g_free (instance->current_id);
+ if (instance->current_view)
+ gtk_object_unref (GTK_OBJECT (instance->current_view));
+
+ if (gal_view_instance_parent_class->destroy)
+ (*gal_view_instance_parent_class->destroy)(object);
+}
+
+static void
+gal_view_instance_class_init (GtkObjectClass *object_class)
+{
+ GalViewInstanceClass *klass = GAL_VIEW_INSTANCE_CLASS(object_class);
+ gal_view_instance_parent_class = gtk_type_class (PARENT_TYPE);
+
+ object_class->destroy = gal_view_instance_destroy;
+
+ gal_view_instance_signals [DISPLAY_VIEW] =
+ gtk_signal_new ("display_view",
+ GTK_RUN_LAST,
+ E_OBJECT_CLASS_TYPE (object_class),
+ GTK_SIGNAL_OFFSET (GalViewInstanceClass, display_view),
+ gtk_marshal_NONE__OBJECT,
+ GTK_TYPE_NONE, 1, GAL_VIEW_TYPE);
+
+ gal_view_instance_signals [CHANGED] =
+ gtk_signal_new ("changed",
+ GTK_RUN_LAST,
+ E_OBJECT_CLASS_TYPE (object_class),
+ GTK_SIGNAL_OFFSET (GalViewInstanceClass, changed),
+ gtk_marshal_NONE__NONE,
+ GTK_TYPE_NONE, 0);
+
+ E_OBJECT_CLASS_ADD_SIGNALS (object_class, gal_view_instance_signals, LAST_SIGNAL);
+
+ klass->display_view = NULL;
+ klass->changed = NULL;
+}
+
+static void
+gal_view_instance_init (GalViewInstance *instance)
+{
+ instance->collection = NULL;
+
+ instance->instance_id = NULL;
+ instance->custom_filename = NULL;
+ instance->current_view_filename = NULL;
+
+ instance->current_title = NULL;
+ instance->current_type = NULL;
+ instance->current_id = NULL;
+ instance->current_view = NULL;
+
+}
+
+/**
+ * gal_view_instance_get_type:
+ *
+ */
+guint
+gal_view_instance_get_type (void)
+{
+ static guint type = 0;
+
+ if (!type)
+ {
+ GtkTypeInfo info =
+ {
+ "GalViewInstance",
+ sizeof (GalViewInstance),
+ sizeof (GalViewInstanceClass),
+ (GtkClassInitFunc) gal_view_instance_class_init,
+ (GtkObjectInitFunc) gal_view_instance_init,
+ /* reserved_1 */ NULL,
+ /* reserved_2 */ NULL,
+ (GtkClassInitFunc) NULL,
+ };
+
+ type = gtk_type_unique (PARENT_TYPE, &info);
+ }
+
+ return type;
+}
+
+static void
+save_current_view (GalViewInstance *instance)
+{
+ xmlDoc *doc;
+ xmlNode *root;
+
+ doc = xmlNewDoc("1.0");
+ root = xmlNewNode (NULL, "GalViewCurrentView");
+ xmlDocSetRootElement(doc, root);
+
+ if (instance->current_id)
+ e_xml_set_string_prop_by_name (root, "current_view", instance->current_id);
+ if (instance->current_type)
+ e_xml_set_string_prop_by_name (root, "current_view_type", instance->current_type);
+
+ xmlSaveFile(instance->current_view_filename, doc);
+ xmlFreeDoc(doc);
+}
+
+static void
+view_changed (GalView *view, GalViewInstance *instance)
+{
+ if (instance->current_id != NULL) {
+ instance->current_view = NULL;
+ save_current_view (instance);
+ gal_view_instance_changed(instance);
+ }
+
+ gal_view_save (view, instance->custom_filename);
+}
+
+static void
+load_current_view (GalViewInstance *instance)
+{
+ xmlDoc *doc;
+ xmlNode *root;
+
+ doc = xmlParseFile(instance->current_view_filename);
+
+ if (!doc)
+ return;
+
+ root = xmlDocGetRootElement(doc);
+ instance->current_id = e_xml_get_string_prop_by_name_with_default (root, "current_view", NULL);
+ instance->current_type = e_xml_get_string_prop_by_name_with_default (root, "current_view_type", NULL);
+ xmlFreeDoc(doc);
+
+ if (instance->current_id == NULL) {
+ instance->current_view =
+ gal_view_collection_load_view_from_file (instance->collection,
+ instance->current_type,
+ instance->custom_filename);
+
+ } else {
+ int index = gal_view_collection_get_view_index_by_id (instance->collection,
+ instance->current_id);
+ GalView *view = gal_view_collection_get_view (instance->collection,
+ index);
+ instance->current_view = gal_view_clone(view);
+
+ }
+
+ instance->current_title = g_strdup (gal_view_get_title(instance->current_view));
+ gtk_signal_connect(GTK_OBJECT(instance->current_view), "changed",
+ GTK_SIGNAL_FUNC(view_changed), instance);
+
+ gal_view_instance_display_view (instance, instance->current_view);
+}
+
+/**
+ * gal_view_instance_new:
+ * @collection: This %GalViewCollection should be loaded before being passed to this function.
+ * @instance_id: Which instance of this type of object is this (for most of evo, this is the folder id.)
+ *
+ * Create a new %GalViewInstance.
+ *
+ * Return value: The new %GalViewInstance.
+ **/
+GalViewInstance *
+gal_view_instance_new (GalViewCollection *collection, const char *instance_id)
+{
+ GalViewInstance *instance = gtk_type_new(gal_view_instance_get_type());
+ if (gal_view_instance_construct (instance, collection, instance_id))
+ return instance;
+ else {
+ gtk_object_unref (GTK_OBJECT (instance));
+ return NULL;
+ }
+}
+
+GalViewInstance *
+gal_view_instance_construct (GalViewInstance *instance, GalViewCollection *collection, const char *instance_id)
+{
+ char *filename;
+ char *safe_id;
+
+ g_return_val_if_fail (gal_view_collection_loaded (collection), NULL);
+
+ instance->collection = collection;
+ if (collection)
+ gtk_object_ref (GTK_OBJECT (collection));
+ instance->instance_id = g_strdup (instance_id);
+
+ safe_id = g_strdup (instance->instance_id);
+ e_filename_make_safe (safe_id);
+
+ filename = g_strdup_printf ("custom_view-%s.xml", safe_id);
+ instance->custom_filename = g_concat_dir_and_file (instance->collection->local_dir, filename);
+ g_free (filename);
+
+ filename = g_strdup_printf ("current_view-%s.xml", safe_id);
+ instance->current_view_filename = g_concat_dir_and_file (instance->collection->local_dir, filename);
+ g_free (filename);
+
+ g_free (safe_id);
+
+ load_current_view (instance);
+
+ return instance;
+}
+
+/* Manipulate the current view. */
+char *
+gal_view_instance_get_current_view_id (GalViewInstance *instance)
+{
+ return g_strdup (instance->current_id);
+}
+
+void
+gal_view_instance_set_current_view_id (GalViewInstance *instance, char *view_id)
+{
+ GalView *view;
+ int index;
+
+ g_return_if_fail (instance != NULL);
+ g_return_if_fail (GAL_IS_VIEW_INSTANCE (instance));
+
+ if (instance->current_view && !strcmp (instance->current_id, view_id))
+ return;
+
+ if (instance->current_view) {
+ gtk_object_unref (GTK_OBJECT (instance->current_view));
+ }
+
+ g_free (instance->current_type);
+ g_free (instance->current_title);
+ g_free (instance->current_id);
+
+ index = gal_view_collection_get_view_index_by_id (instance->collection, view_id);
+ view = gal_view_collection_get_view (instance->collection, index);
+
+ instance->current_title = g_strdup (gal_view_get_title(view));
+ instance->current_type = g_strdup (gal_view_get_type_code(view));
+ instance->current_id = g_strdup (view_id);
+ instance->current_view = gal_view_clone(view);
+
+ gtk_signal_connect(GTK_OBJECT(instance->current_view), "changed",
+ GTK_SIGNAL_FUNC(view_changed), instance);
+
+ save_current_view (instance);
+ gal_view_instance_changed(instance);
+ gal_view_instance_display_view (instance, view);
+}
+
+GalView *
+gal_view_instance_get_current_view (GalViewInstance *instance)
+{
+ return instance->current_view;
+}
diff --git a/widgets/menus/gal-view-instance.h b/widgets/menus/gal-view-instance.h
new file mode 100644
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+++ b/widgets/menus/gal-view-instance.h
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+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/*
+ * gal-view-instance.h
+ * Copyright 2000, 2001, Ximian, Inc.
+ *
+ * Authors:
+ * Chris Lahey <clahey@ximian.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License, version 2, as published by the Free Software Foundation.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#ifndef _GAL_VIEW_INSTANCE_H_
+#define _GAL_VIEW_INSTANCE_H_
+
+#include <gtk/gtkobject.h>
+#include <gal/menus/gal-view-collection.h>
+#include <libgnome/gnome-defs.h>
+
+BEGIN_GNOME_DECLS
+
+
+#define GAL_VIEW_INSTANCE_TYPE (gal_view_instance_get_type ())
+#define GAL_VIEW_INSTANCE(o) (GTK_CHECK_CAST ((o), GAL_VIEW_INSTANCE_TYPE, GalViewInstance))
+#define GAL_VIEW_INSTANCE_CLASS(k) (GTK_CHECK_CLASS_CAST((k), GAL_VIEW_INSTANCE_TYPE, GalViewInstanceClass))
+#define GAL_IS_VIEW_INSTANCE(o) (GTK_CHECK_TYPE ((o), GAL_VIEW_INSTANCE_TYPE))
+#define GAL_IS_VIEW_INSTANCE_CLASS(k) (GTK_CHECK_CLASS_TYPE ((k), GAL_VIEW_INSTANCE_TYPE))
+
+typedef struct {
+ GtkObject base;
+
+ GalViewCollection *collection;
+
+ char *instance_id;
+ char *current_view_filename;
+ char *custom_filename;
+
+ char *current_title;
+ char *current_type;
+ char *current_id;
+
+ GalView *current_view;
+} GalViewInstance;
+
+typedef struct {
+ GtkObjectClass parent_class;
+
+ /*
+ * Signals
+ */
+ void (*display_view) (GalViewInstance *instance,
+ GalView *view);
+ void (*changed) (GalViewInstance *instance);
+} GalViewInstanceClass;
+
+/* Standard functions */
+GtkType gal_view_instance_get_type (void);
+
+/* */
+/*collection should be loaded when you call this.
+ instance_id: Which instance of this type of object is this (for most of evo, this is the folder id.) */
+GalViewInstance *gal_view_instance_new (GalViewCollection *collection,
+ const char *instance_id);
+GalViewInstance *gal_view_instance_construct (GalViewInstance *instance,
+ GalViewCollection *collection,
+ const char *instance_id);
+
+/* Manipulate the current view. */
+char *gal_view_instance_get_current_view_id (GalViewInstance *instance);
+void gal_view_instance_set_current_view_id (GalViewInstance *instance,
+ char *view_id);
+GalView *gal_view_instance_get_current_view (GalViewInstance *instance);
+
+/* Manipulate the view collection */
+void gal_view_instance_save_current_view (GalViewInstance *instance);
+void gal_view_instance_set_default (GalViewInstance *instance);
+
+
+END_GNOME_DECLS
+
+
+#endif /* _GAL_VIEW_INSTANCE_H_ */