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+/* ATK - Accessibility Toolkit
+ * Copyright 2001 Sun Microsystems Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * 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 __ATK_RELATION_H__
+#define __ATK_RELATION_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+#include <glib-object.h>
+#include <atk/atkrelationtype.h>
+
+/*
+ * An AtkRelation describes a relation between the object and one or more
+ * other objects. The actual relations that an object has with other objects
+ * are defined as an AtkRelationSet, which is a set of AtkRelations.
+ */
+
+#define ATK_TYPE_RELATION (atk_relation_get_type ())
+#define ATK_RELATION(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), ATK_TYPE_RELATION, AtkRelation))
+#define ATK_RELATION_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), ATK_TYPE_RELATION, AtkRelationClass))
+#define ATK_IS_RELATION(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), ATK_TYPE_RELATION))
+#define ATK_IS_RELATION_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), ATK_TYPE_RELATION))
+#define ATK_RELATION_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), ATK_TYPE_RELATION, AtkRelationClass))
+
+typedef struct _AtkRelation AtkRelation;
+typedef struct _AtkRelationClass AtkRelationClass;
+
+struct _AtkRelation
+{
+ GObject parent;
+
+ GPtrArray *target;
+ AtkRelationType relationship;
+};
+
+struct _AtkRelationClass
+{
+ GObjectClass parent;
+};
+
+GType atk_relation_get_type (void);
+
+AtkRelationType atk_relation_type_register (const gchar *name);
+G_CONST_RETURN gchar* atk_relation_type_get_name (AtkRelationType type);
+AtkRelationType atk_relation_type_for_name (const gchar *name);
+
+/*
+ * Create a new relation for the specified key and the specified list
+ * of targets.
+ */
+AtkRelation* atk_relation_new (AtkObject **targets,
+ gint n_targets,
+ AtkRelationType relationship);
+/*
+ * Returns the type of a relation.
+ */
+AtkRelationType atk_relation_get_relation_type (AtkRelation *relation);
+/*
+ * Returns the target list of a relation.
+ */
+GPtrArray* atk_relation_get_target (AtkRelation *relation);
+void atk_relation_add_target (AtkRelation *relation,
+ AtkObject *target);
+
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __ATK_RELATION_H__ */