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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_VALUE_H__
#define __ATK_VALUE_H__
#if defined(ATK_DISABLE_SINGLE_INCLUDES) && !defined (__ATK_H_INSIDE__) && !defined (GTK_COMPILATION)
#error "Only <atk/atk.h> can be included directly."
#endif
#include <atk/atkobject.h>
#include <atk/atkrange.h>
G_BEGIN_DECLS
#define ATK_TYPE_VALUE (atk_value_get_type ())
#define ATK_IS_VALUE(obj) G_TYPE_CHECK_INSTANCE_TYPE ((obj), ATK_TYPE_VALUE)
#define ATK_VALUE(obj) G_TYPE_CHECK_INSTANCE_CAST ((obj), ATK_TYPE_VALUE, AtkValue)
#define ATK_VALUE_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), ATK_TYPE_VALUE, AtkValueIface))
#ifndef _TYPEDEF_ATK_VALUE_
#define _TYPEDEF_ATK_VALUE__
typedef struct _AtkValue AtkValue;
#endif
typedef struct _AtkValueIface AtkValueIface;
/**
* AtkValueIface:
* @get_value_and_text: gets the current value and the human readable
* text alternative (if available) of this object. Since 2.12.
* @get_range: gets the range that defines the minimum and maximum
* value of this object. Returns NULL if there is no range
* defined. Since 2.12.
* @get_increment: gets the minimum increment by which the value of
* this object may be changed. If zero it is undefined. Since 2.12.
* @get_sub_ranges: returns a list of different subranges, and their
* description (if available) of this object. Returns NULL if there
* is not subranges defined. Since 2.12.
* @set_value: sets the value of this object. Since 2.12.
*/
struct _AtkValueIface
{
GTypeInterface parent;
void (* get_value_and_text) (AtkValue *obj,
gdouble *value,
gchar **text);
AtkRange*(* get_range) (AtkValue *obj);
gdouble (* get_increment) (AtkValue *obj);
GSList* (* get_sub_ranges) (AtkValue *obj);
void (* set_value) (AtkValue *obj,
const gdouble new_value);
};
GDK_AVAILABLE_IN_ALL
GType atk_value_get_type (void);
GDK_AVAILABLE_IN_ALL
void atk_value_get_value_and_text (AtkValue *obj,
gdouble *value,
gchar **text);
GDK_AVAILABLE_IN_ALL
AtkRange* atk_value_get_range (AtkValue *obj);
GDK_AVAILABLE_IN_ALL
gdouble atk_value_get_increment (AtkValue *obj);
GDK_AVAILABLE_IN_ALL
GSList* atk_value_get_sub_ranges (AtkValue *obj);
GDK_AVAILABLE_IN_ALL
void atk_value_set_value (AtkValue *obj,
const gdouble new_value);
/* AtkValueType methods */
GDK_AVAILABLE_IN_ALL
const gchar* atk_value_type_get_name (AtkValueType value_type);
GDK_AVAILABLE_IN_ALL
const gchar* atk_value_type_get_localized_name (AtkValueType value_type);
G_END_DECLS
#endif /* __ATK_VALUE_H__ */
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