1 /* ATK - Accessibility Toolkit
2 * Copyright 2001 Sun Microsystems Inc.
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.
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.
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.
20 #if defined(ATK_DISABLE_SINGLE_INCLUDES) && !defined (__ATK_H_INSIDE__) && !defined (ATK_COMPILATION)
21 #error "Only <atk/atk.h> can be included directly."
24 #ifndef __ATK_VALUE_H__
25 #define __ATK_VALUE_H__
27 #include <atk/atkobject.h>
32 * The AtkValue interface should be supported by any object that
33 * supports a numerical value (e.g., a scroll bar). This interface
34 * provides the standard mechanism for an assistive technology to
35 * determine and set the numerical value as well as get the minimum
39 #define ATK_TYPE_VALUE (atk_value_get_type ())
40 #define ATK_IS_VALUE(obj) G_TYPE_CHECK_INSTANCE_TYPE ((obj), ATK_TYPE_VALUE)
41 #define ATK_VALUE(obj) G_TYPE_CHECK_INSTANCE_CAST ((obj), ATK_TYPE_VALUE, AtkValue)
42 #define ATK_VALUE_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), ATK_TYPE_VALUE, AtkValueIface))
44 #ifndef _TYPEDEF_ATK_VALUE_
45 #define _TYPEDEF_ATK_VALUE__
46 typedef struct _AtkValue AtkValue
;
48 typedef struct _AtkValueIface AtkValueIface
;
52 GTypeInterface parent
;
54 void (* get_current_value
) (AtkValue
*obj
,
56 void (* get_maximum_value
) (AtkValue
*obj
,
58 void (* get_minimum_value
) (AtkValue
*obj
,
60 gboolean (* set_current_value
) (AtkValue
*obj
,
62 void (* get_minimum_increment
) (AtkValue
*obj
,
66 GType
atk_value_get_type (void);
68 void atk_value_get_current_value (AtkValue
*obj
,
72 void atk_value_get_maximum_value (AtkValue
*obj
,
75 void atk_value_get_minimum_value (AtkValue
*obj
,
78 gboolean
atk_value_set_current_value (AtkValue
*obj
,
81 void atk_value_get_minimum_increment (AtkValue
*obj
,
85 * Additional GObject properties exported by GaccessibleValue:
87 * (the accessible value has changed)
92 #endif /* __ATK_VALUE_H__ */