other-licenses/atk-1.0/atk/atkrelation.h

   1 /* ATK -  Accessibility Toolkit
   2  * Copyright 2001 Sun Microsystems Inc.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 #ifndef __ATK_RELATION_H__
  21 #define __ATK_RELATION_H__
  22
  23 #ifdef __cplusplus
  24 extern "C" {
  25 #endif /* __cplusplus */
  26
  27 #include <glib-object.h>
  28 #include <atk/atkrelationtype.h>
  29
  30 /*
  31  * An AtkRelation describes a relation between the object and one or more
  32  * other objects. The actual relations that an object has with other objects
  33  * are defined as an AtkRelationSet, which is a set of AtkRelations.
  34  */
  35
  36 #define ATK_TYPE_RELATION                         (atk_relation_get_type ())
  37 #define ATK_RELATION(obj)                         (G_TYPE_CHECK_INSTANCE_CAST ((obj), ATK_TYPE_RELATION, AtkRelation))
  38 #define ATK_RELATION_CLASS(klass)                 (G_TYPE_CHECK_CLASS_CAST ((klass), ATK_TYPE_RELATION, AtkRelationClass))
  39 #define ATK_IS_RELATION(obj)                      (G_TYPE_CHECK_INSTANCE_TYPE ((obj), ATK_TYPE_RELATION))
  40 #define ATK_IS_RELATION_CLASS(klass)              (G_TYPE_CHECK_CLASS_TYPE ((klass), ATK_TYPE_RELATION))
  41 #define ATK_RELATION_GET_CLASS(obj)               (G_TYPE_INSTANCE_GET_CLASS ((obj), ATK_TYPE_RELATION, AtkRelationClass))
  42
  43 typedef struct _AtkRelation            AtkRelation;
  44 typedef struct _AtkRelationClass       AtkRelationClass;
  45
  46 struct _AtkRelation
  47 {
  48   GObject parent;
  49
  50   GPtrArray       *target;
  51   AtkRelationType relationship;
  52 };
  53
  54 struct _AtkRelationClass
  55 {
  56   GObjectClass parent;
  57 };
  58
  59 GType atk_relation_get_type (void);
  60
  61 AtkRelationType       atk_relation_type_register      (const gchar     *name);
  62 G_CONST_RETURN gchar* atk_relation_type_get_name      (AtkRelationType type);
  63 AtkRelationType       atk_relation_type_for_name      (const gchar     *name);
  64
  65 /*
  66  * Create a new relation for the specified key and the specified list
  67  * of targets.
  68  */
  69 AtkRelation*          atk_relation_new                (AtkObject       **targets,
  70                                                        gint            n_targets,
  71                                                        AtkRelationType relationship);
  72 /*
  73  * Returns the type of a relation.
  74  */
  75 AtkRelationType       atk_relation_get_relation_type  (AtkRelation     *relation);
  76 /*
  77  * Returns the target list of a relation.
  78  */
  79 GPtrArray*            atk_relation_get_target         (AtkRelation     *relation);
  80 void                  atk_relation_add_target         (AtkRelation     *relation,
  81                                                        AtkObject       *target);
  82
  83
  84 #ifdef __cplusplus
  85 }
  86 #endif /* __cplusplus */
  87
  88 #endif /* __ATK_RELATION_H__ */