2 * AT-SPI - Assistive Technology Service Provider Interface
3 * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
5 * Copyright 2001, 2002 Sun Microsystems Inc.,
6 * Copyright 2001, 2002 Ximian, Inc.
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
24 /* value.c : implements the Value interface */
28 #include <libspi/value.h>
30 #define PARENT_TYPE SPI_TYPE_BASE
32 /* Static function declarations */
35 get_double_from_gvalue (GValue *gvalue);
37 gvalue_set_from_double (GValue *gvalue, double value);
39 spi_value_class_init (SpiValueClass *klass);
41 spi_value_init (SpiValue *value);
43 impl__get_minimumValue (PortableServer_Servant _servant,
44 CORBA_Environment * ev);
46 impl__get_maximumValue (PortableServer_Servant _servant,
47 CORBA_Environment * ev);
49 impl__get_currentValue (PortableServer_Servant _servant,
50 CORBA_Environment * ev);
52 impl__set_currentValue (PortableServer_Servant _servant,
53 const CORBA_double value,
54 CORBA_Environment * ev);
57 BONOBO_TYPE_FUNC_FULL (SpiValue,
64 spi_value_class_init (SpiValueClass *klass)
66 POA_Accessibility_Value__epv *epv = &klass->epv;
68 /* Initialize epv table */
70 epv->_get_minimumValue = impl__get_minimumValue;
71 epv->_get_maximumValue = impl__get_maximumValue;
72 epv->_get_currentValue = impl__get_currentValue;
73 epv->_set_currentValue = impl__set_currentValue;
78 spi_value_init (SpiValue *value)
84 spi_value_interface_new (AtkObject *obj)
86 SpiValue *new_value = g_object_new (SPI_VALUE_TYPE, NULL);
88 spi_base_construct (SPI_BASE (new_value), G_OBJECT(obj));
95 get_value_from_servant (PortableServer_Servant servant)
97 SpiBase *object = SPI_BASE (bonobo_object_from_servant (servant));
99 g_return_val_if_fail (object, NULL);
100 g_return_val_if_fail (ATK_IS_OBJECT(object->gobj), NULL);
101 return ATK_VALUE (object->gobj);
105 get_double_from_gvalue (GValue *gvalue)
108 if (G_TYPE_IS_FUNDAMENTAL (G_VALUE_TYPE (gvalue)))
110 switch (gvalue->g_type)
113 retval = g_value_get_double (gvalue);
116 retval = g_value_get_float (gvalue);
119 retval = g_value_get_ulong (gvalue);
122 retval = g_value_get_long (gvalue);
125 retval = g_value_get_uint (gvalue);
128 retval = g_value_get_int (gvalue);
131 retval = g_value_get_uchar (gvalue);
134 retval = g_value_get_char (gvalue);
137 retval = g_value_get_boolean (gvalue);
143 g_warning ("SpiValue requested from a non-fundamental type\n");
149 gvalue_set_from_double (GValue *gvalue, double value)
151 if (G_TYPE_IS_FUNDAMENTAL (G_VALUE_TYPE (gvalue)))
153 switch (gvalue->g_type)
156 g_value_set_double (gvalue, value);
159 g_value_set_float (gvalue, value);
162 g_value_set_ulong (gvalue, value);
165 g_value_set_long (gvalue, value);
168 g_value_set_uint (gvalue, value);
171 g_value_set_int (gvalue, value);
174 g_value_set_uchar (gvalue, value);
177 g_value_set_char (gvalue, value);
180 g_value_set_boolean (gvalue, ((fabs (value) > 0.5) ? 1 : 0));
186 g_warning ("SpiValue change requested for a non-fundamental type\n");
191 impl__get_minimumValue (PortableServer_Servant servant,
192 CORBA_Environment *ev)
194 GValue gvalue = {0, };
195 AtkValue *value = get_value_from_servant (servant);
197 g_return_val_if_fail (value != NULL, 0.0);
199 atk_value_get_minimum_value (value, &gvalue);
201 return get_double_from_gvalue (&gvalue);
206 impl__get_maximumValue (PortableServer_Servant servant,
207 CORBA_Environment *ev)
209 GValue gvalue = {0, };
210 AtkValue *value = get_value_from_servant (servant);
212 g_return_val_if_fail (value != NULL, 0.0);
214 atk_value_get_maximum_value (value, &gvalue);
216 return get_double_from_gvalue (&gvalue);
221 impl__get_currentValue (PortableServer_Servant servant,
222 CORBA_Environment *ev)
224 GValue gvalue = {0, };
225 AtkValue *value = get_value_from_servant (servant);
227 g_return_val_if_fail (value != NULL, 0.0);
229 atk_value_get_current_value (value, &gvalue);
231 return get_double_from_gvalue (&gvalue);
236 impl__set_currentValue (PortableServer_Servant servant,
237 const CORBA_double value,
238 CORBA_Environment *ev)
240 GValue gvalue = { 0, };
241 AtkValue *avalue = get_value_from_servant (servant);
243 g_return_if_fail (avalue != NULL);
245 atk_value_get_current_value (avalue, &gvalue);
246 gvalue_set_from_double (&gvalue, value);
248 atk_value_set_current_value (avalue, &gvalue);