* AT-SPI - Assistive Technology Service Provider Interface
* (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
*
- * Copyright 2001 Sun Microsystems Inc.
+ * Copyright 2001, 2002 Sun Microsystems Inc.,
+ * Copyright 2001, 2002 Ximian, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* Boston, MA 02111-1307, USA.
*/
-/*
- * component.c : bonobo wrapper for accessible component implementation
- *
- */
+/* value.c : implements the Value interface */
#include <config.h>
-#include <bonobo/Bonobo.h>
-
+#include <math.h>
#include <stdio.h>
+#include <libspi/value.h>
-/*
- * This pulls the CORBA definitions for the "Accessibility::Accessible" server
- */
-#include <libspi/Accessibility.h>
+#define PARENT_TYPE SPI_TYPE_BASE
-/*
- * This pulls the definition of the Value bonobo object
- */
-#include "value.h"
-
-/*
- * Static function declarations
- */
+/* Static function declarations */
+static double
+get_double_from_gvalue (GValue *gvalue);
static void
-value_class_init (ValueClass *klass);
+gvalue_set_from_double (GValue *gvalue, double value);
static void
-value_init (Value *value);
+spi_value_class_init (SpiValueClass *klass);
static void
-value_finalize (GObject *obj);
-static CORBA_float
+spi_value_init (SpiValue *value);
+static double
impl__get_minimumValue (PortableServer_Servant _servant,
- CORBA_Environment * ev);
-static CORBA_float
+ CORBA_Environment * ev);
+static double
impl__get_maximumValue (PortableServer_Servant _servant,
- CORBA_Environment * ev);
-static CORBA_float
+ CORBA_Environment * ev);
+static double
impl__get_currentValue (PortableServer_Servant _servant,
- CORBA_Environment * ev);
+ CORBA_Environment * ev);
static void
impl__set_currentValue (PortableServer_Servant _servant,
- const CORBA_float value,
- CORBA_Environment * ev);
-
+ const CORBA_double value,
+ CORBA_Environment * ev);
+static double
+impl__get_minimumIncrement (PortableServer_Servant _servant,
+ CORBA_Environment * ev);
-static GObjectClass *parent_class;
+BONOBO_TYPE_FUNC_FULL (SpiValue,
+ Accessibility_Value,
+ PARENT_TYPE,
+ spi_value)
-GType
-value_get_type (void)
-{
- static GType type = 0;
-
- if (!type) {
- static const GTypeInfo tinfo = {
- sizeof (ValueClass),
- (GBaseInitFunc) NULL,
- (GBaseFinalizeFunc) NULL,
- (GClassInitFunc) value_class_init,
- (GClassFinalizeFunc) NULL,
- NULL, /* class data */
- sizeof (Value),
- 0, /* n preallocs */
- (GInstanceInitFunc) value_init,
- NULL /* value table */
- };
-
- /*
- * Bonobo_type_unique auto-generates a load of
- * CORBA structures for us. All derived types must
- * use bonobo_type_unique.
- */
- type = bonobo_type_unique (
- BONOBO_OBJECT_TYPE,
- POA_Accessibility_Value__init,
- NULL,
- G_STRUCT_OFFSET (ValueClass, epv),
- &tinfo,
- "AccessibleValue");
- }
-
- return type;
-}
-
static void
-value_class_init (ValueClass *klass)
+spi_value_class_init (SpiValueClass *klass)
{
- GObjectClass * object_class = (GObjectClass *) klass;
POA_Accessibility_Value__epv *epv = &klass->epv;
- parent_class = g_type_class_peek_parent (klass);
-
- object_class->finalize = value_finalize;
-
/* Initialize epv table */
epv->_get_maximumValue = impl__get_maximumValue;
epv->_get_currentValue = impl__get_currentValue;
epv->_set_currentValue = impl__set_currentValue;
+ epv->_get_minimumIncrement = impl__get_minimumIncrement;
}
-static void
-value_init (Value *value)
-{
-}
static void
-value_finalize (GObject *obj)
+spi_value_init (SpiValue *value)
{
- Value *value = VALUE (obj);
- value->atk_value = NULL;
- parent_class->finalize (obj);
}
-Value *
-value_new (AtkValue *value)
+
+SpiValue *
+spi_value_interface_new (AtkObject *obj)
{
- Value *new_value =
- VALUE(g_object_new (VALUE_TYPE, NULL));
- new_value->atk_value = value;
+ SpiValue *new_value = g_object_new (SPI_VALUE_TYPE, NULL);
+
+ spi_base_construct (SPI_BASE (new_value), G_OBJECT(obj));
+
return new_value;
}
-
-static CORBA_float
-impl__get_minimumValue (PortableServer_Servant _servant,
- CORBA_Environment * ev)
+static AtkValue *
+get_value_from_servant (PortableServer_Servant servant)
{
- Value *value = VALUE (bonobo_object_from_servant (_servant));
- GValue gvalue = {0, };
+ SpiBase *object = SPI_BASE (bonobo_object_from_servant (servant));
- g_value_init (&gvalue, G_TYPE_FLOAT);
- atk_value_get_minimum_value (value->atk_value, &gvalue);
- return (CORBA_float) g_value_get_float (&gvalue);
+ g_return_val_if_fail (object, NULL);
+ g_return_val_if_fail (ATK_IS_OBJECT(object->gobj), NULL);
+ return ATK_VALUE (object->gobj);
}
+static double
+get_double_from_gvalue (GValue *gvalue)
+{
+ double retval = 0;
+ if (G_TYPE_IS_FUNDAMENTAL (G_VALUE_TYPE (gvalue)))
+ {
+ switch (gvalue->g_type)
+ {
+ case G_TYPE_DOUBLE:
+ retval = g_value_get_double (gvalue);
+ break;
+ case G_TYPE_FLOAT:
+ retval = g_value_get_float (gvalue);
+ break;
+ case G_TYPE_ULONG:
+ retval = g_value_get_ulong (gvalue);
+ break;
+ case G_TYPE_LONG:
+ retval = g_value_get_long (gvalue);
+ break;
+ case G_TYPE_UINT:
+ retval = g_value_get_uint (gvalue);
+ break;
+ case G_TYPE_INT:
+ retval = g_value_get_int (gvalue);
+ break;
+ case G_TYPE_UCHAR:
+ retval = g_value_get_uchar (gvalue);
+ break;
+ case G_TYPE_CHAR:
+ retval = g_value_get_char (gvalue);
+ break;
+ case G_TYPE_BOOLEAN:
+ retval = g_value_get_boolean (gvalue);
+ break;
+ }
+ }
+ else
+ {
+ g_warning ("SpiValue requested from a non-fundamental type\n");
+ }
+ return retval;
+}
+static void
+gvalue_set_from_double (GValue *gvalue, double value)
+{
+ if (G_TYPE_IS_FUNDAMENTAL (G_VALUE_TYPE (gvalue)))
+ {
+ switch (gvalue->g_type)
+ {
+ case G_TYPE_DOUBLE:
+ g_value_set_double (gvalue, value);
+ break;
+ case G_TYPE_FLOAT:
+ g_value_set_float (gvalue, value);
+ break;
+ case G_TYPE_ULONG:
+ g_value_set_ulong (gvalue, value);
+ break;
+ case G_TYPE_LONG:
+ g_value_set_long (gvalue, value);
+ break;
+ case G_TYPE_UINT:
+ g_value_set_uint (gvalue, value);
+ break;
+ case G_TYPE_INT:
+ g_value_set_int (gvalue, value);
+ break;
+ case G_TYPE_UCHAR:
+ g_value_set_uchar (gvalue, value);
+ break;
+ case G_TYPE_CHAR:
+ g_value_set_char (gvalue, value);
+ break;
+ case G_TYPE_BOOLEAN:
+ g_value_set_boolean (gvalue, ((fabs (value) > 0.5) ? 1 : 0));
+ break;
+ }
+ }
+ else
+ {
+ g_warning ("SpiValue change requested for a non-fundamental type\n");
+ }
+}
-static CORBA_float
-impl__get_maximumValue (PortableServer_Servant _servant,
- CORBA_Environment * ev)
+static double
+impl__get_minimumValue (PortableServer_Servant servant,
+ CORBA_Environment *ev)
{
- Value *value = VALUE (bonobo_object_from_servant (_servant));
- GValue gvalue = {0, };
+ GValue gvalue = {0, };
+ AtkValue *value = get_value_from_servant (servant);
+
+ g_return_val_if_fail (value != NULL, 0.0);
+
+ atk_value_get_minimum_value (value, &gvalue);
- g_value_init (&gvalue, G_TYPE_FLOAT);
- atk_value_get_maximum_value (value->atk_value, &gvalue);
- return (CORBA_float) g_value_get_float (&gvalue);
+ return get_double_from_gvalue (&gvalue);
}
+static double
+impl__get_maximumValue (PortableServer_Servant servant,
+ CORBA_Environment *ev)
+{
+ GValue gvalue = {0, };
+ AtkValue *value = get_value_from_servant (servant);
-static CORBA_float
-impl__get_currentValue (PortableServer_Servant _servant,
- CORBA_Environment * ev)
+ g_return_val_if_fail (value != NULL, 0.0);
+
+ atk_value_get_maximum_value (value, &gvalue);
+
+ return get_double_from_gvalue (&gvalue);
+}
+
+
+static double
+impl__get_currentValue (PortableServer_Servant servant,
+ CORBA_Environment *ev)
{
- Value *value = VALUE (bonobo_object_from_servant (_servant));
- GValue gvalue = {0, };
+ GValue gvalue = {0, };
+ AtkValue *value = get_value_from_servant (servant);
+
+ g_return_val_if_fail (value != NULL, 0.0);
+
+ atk_value_get_current_value (value, &gvalue);
- g_value_init (&gvalue, G_TYPE_FLOAT);
- atk_value_get_current_value (value->atk_value, &gvalue);
- return (CORBA_float) g_value_get_float (&gvalue);
+ return get_double_from_gvalue (&gvalue);
}
static void
-impl__set_currentValue (PortableServer_Servant _servant,
- const CORBA_float value,
- CORBA_Environment * ev)
+impl__set_currentValue (PortableServer_Servant servant,
+ const CORBA_double value,
+ CORBA_Environment *ev)
+{
+ GValue gvalue = { 0, };
+ AtkValue *avalue = get_value_from_servant (servant);
+
+ g_return_if_fail (avalue != NULL);
+
+ atk_value_get_current_value (avalue, &gvalue);
+ gvalue_set_from_double (&gvalue, value);
+
+ atk_value_set_current_value (avalue, &gvalue);
+}
+
+static double
+impl__get_minimumIncrement (PortableServer_Servant servant,
+ CORBA_Environment *ev)
{
- Value *val = VALUE (bonobo_object_from_servant (_servant));
- GValue gvalue = {0, };
+ GValue gvalue = {0, };
+ AtkValue *value = get_value_from_servant (servant);
+
+ g_return_val_if_fail (value != NULL, 0.0);
+
+ atk_value_get_minimum_increment (value, &gvalue);
- g_value_init (&gvalue, G_TYPE_FLOAT);
- g_value_set_float (&gvalue, (gfloat) value);
- atk_value_set_current_value (val->atk_value, &gvalue);
+ return get_double_from_gvalue (&gvalue);
}
projects / platform / core / uifw / at-spi2-atk.git / blobdiff