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 Lesser 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
* Lesser General Public License for more details.
14
* You should have received a copy of the GNU Lesser 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.
25
static GType type = 0;
30
sizeof (AtkValueIface),
36
type = g_type_register_static (G_TYPE_INTERFACE, "AtkValue", &tinfo, 0);
43
* atk_value_get_current_value:
44
* @obj@: a GObject instance that implements AtkValueIface
45
* @value: a #GValue representing the current accessible value
47
* WARNING: callers should not rely on %NULL or on a zero value for
48
* indication of whether AtkValue is implemented, they should
49
* use type checking/interface checking macros or the
50
* atk_get_accessible_value() convenience method.
53
atk_value_get_current_value (AtkValue *obj,
58
g_return_if_fail (obj != NULL);
59
g_return_if_fail (value != NULL);
60
g_return_if_fail (ATK_IS_VALUE (obj));
61
g_return_if_fail (G_IS_VALUE (value));
63
iface = ATK_VALUE_GET_IFACE (obj);
65
if (iface->get_current_value)
66
(iface->get_current_value) (obj, value);
70
* atk_value_get_maximum_value:
71
* @obj: a GObject instance that implements AtkValueIface
72
* @value: a #GValue representing the maximum accessible value
74
* WARNING: callers should not rely on %NULL or on a zero value for
75
* indication of whether AtkValue is implemented, they should
76
* use type checking/interface checking macros or the
77
* atk_get_accessible_value() convenience method.
80
atk_value_get_maximum_value (AtkValue *obj,
85
g_return_if_fail (obj != NULL);
86
g_return_if_fail (value != NULL);
87
g_return_if_fail (ATK_IS_VALUE (obj));
88
g_return_if_fail (G_IS_VALUE (value));
90
iface = ATK_VALUE_GET_IFACE (obj);
92
if (iface->get_maximum_value)
93
(iface->get_maximum_value) (obj, value);
97
* atk_value_get_minimum_value:
98
* @obj: a GObject instance that implements AtkValueIface
99
* @value: a #GValue representing the minimum accessible value
101
* WARNING: callers should not rely on %NULL or on a zero value for
102
* indication of whether AtkValue is implemented, they should
103
* use type checking/interface checking macros or the
104
* atk_get_accessible_value() convenience method.
107
atk_value_get_minimum_value (AtkValue *obj,
110
AtkValueIface *iface;
112
g_return_if_fail (obj != NULL);
113
g_return_if_fail (value != NULL);
114
g_return_if_fail (ATK_IS_VALUE (obj));
115
g_return_if_fail (G_IS_VALUE (value));
117
iface = ATK_VALUE_GET_IFACE (obj);
119
if (iface->get_minimum_value)
120
return (iface->get_minimum_value) (obj, value);
124
* atk_value_set_current_value:
125
* @obj: a GObject instance that implements AtkValueIface
126
* @value: a #GValue which is the desired new accessible value.
127
* @return: %true if new value is successfully set, %false otherwise.
130
atk_value_set_current_value (AtkValue *obj,
133
AtkValueIface *iface;
135
g_return_val_if_fail (obj != NULL, FALSE);
136
g_return_val_if_fail (value != NULL, FALSE);
137
g_return_val_if_fail (ATK_IS_VALUE (obj), FALSE);
138
g_return_val_if_fail (G_IS_VALUE (value), FALSE);
140
iface = ATK_VALUE_GET_IFACE (obj);
142
if (iface->set_current_value)
143
return (iface->set_current_value) (obj, value);