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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 Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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 "atkvalue.h"
GType
atk_value_get_type ()
{
static GType type = 0;
if (!type) {
GTypeInfo tinfo =
{
sizeof (AtkValueIface),
NULL,
NULL,
};
type = g_type_register_static (G_TYPE_INTERFACE, "AtkValue", &tinfo, 0);
}
return type;
}
/**
* atk_value_get_current_value:
* @obj@: a GObject instance that implements AtkValueIface
* @value: a #GValue representing the current accessible value
*
* WARNING: callers should not rely on %NULL or on a zero value for
* indication of whether AtkValue is implemented, they should
* use type checking/interface checking macros or the
* atk_get_accessible_value() convenience method.
**/
void
atk_value_get_current_value (AtkValue *obj,
GValue *value)
{
AtkValueIface *iface;
g_return_if_fail (obj != NULL);
g_return_if_fail (value != NULL);
g_return_if_fail (ATK_IS_VALUE (obj));
iface = ATK_VALUE_GET_IFACE (obj);
if (iface->get_current_value)
(iface->get_current_value) (obj, value);
}
/**
* atk_value_get_maximum_value:
* @obj: a GObject instance that implements AtkValueIface
* @value: a #GValue representing the maximum accessible value
*
* WARNING: callers should not rely on %NULL or on a zero value for
* indication of whether AtkValue is implemented, they should
* use type checking/interface checking macros or the
* atk_get_accessible_value() convenience method.
**/
void
atk_value_get_maximum_value (AtkValue *obj,
GValue *value)
{
AtkValueIface *iface;
g_return_if_fail (obj != NULL);
g_return_if_fail (value != NULL);
g_return_if_fail (ATK_IS_VALUE (obj));
iface = ATK_VALUE_GET_IFACE (obj);
if (iface->get_maximum_value)
(iface->get_maximum_value) (obj, value);
}
/**
* atk_value_get_minimum_value:
* @obj: a GObject instance that implements AtkValueIface
* @value: a #GValue representing the minimum accessible value
*
* WARNING: callers should not rely on %NULL or on a zero value for
* indication of whether AtkValue is implemented, they should
* use type checking/interface checking macros or the
* atk_get_accessible_value() convenience method.
**/
void
atk_value_get_minimum_value (AtkValue *obj,
GValue *value)
{
AtkValueIface *iface;
g_return_if_fail (obj != NULL);
g_return_if_fail (value != NULL);
g_return_if_fail (ATK_IS_VALUE (obj));
iface = ATK_VALUE_GET_IFACE (obj);
if (iface->get_minimum_value)
return (iface->get_minimum_value) (obj, value);
}
/**
* atk_value_set_current_value:
* @obj: a GObject instance that implements AtkValueIface
* @value: a #GValue which is the desired new accessible value.
* @return: %true if new value is successfully set, %false otherwise.
**/
gboolean
atk_value_set_current_value (AtkValue *obj,
GValue *value)
{
AtkValueIface *iface;
g_return_val_if_fail (obj != NULL, FALSE);
g_return_val_if_fail (value != NULL, FALSE);
g_return_val_if_fail (ATK_IS_VALUE (obj), FALSE);
g_return_val_if_fail (G_IS_VALUE (value), FALSE);
iface = ATK_VALUE_GET_IFACE (obj);
if (iface->set_current_value)
return (iface->set_current_value) (obj, value);
else
return FALSE;
}
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