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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* eel-accessibility.h - Utility functions for accessibility
Copyright (C) 2002 Anders Carlsson
The Eel 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.
The Eel 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 the Eel Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
Authors: Anders Carlsson <andersca@gnu.org>
*/
#ifndef EEL_ACCESSIBILITY_H
#define EEL_ACCESSIBILITY_H
#include <glib-object.h>
#include <atk/atkobject.h>
#include <atk/atkregistry.h>
#include <atk/atkobjectfactory.h>
#include <gtk/gtk.h>
#include <libgail-util/gailtextutil.h>
void eel_accessibility_set_up_label_widget_relation (GtkWidget *label, GtkWidget *widget);
typedef void (*EelAccessibilityClassInitFn) (AtkObjectClass *klass);
AtkObject *eel_accessibility_get_atk_object (gpointer object);
AtkObject *eel_accessibility_for_object (gpointer object);
gpointer eel_accessibility_get_gobject (AtkObject *object);
AtkObject *eel_accessibility_set_atk_object_return (gpointer object,
AtkObject *atk_object);
GType eel_accessibility_create_derived_type (const char *type_name,
GType existing_gobject_with_proxy,
EelAccessibilityClassInitFn class_init);
void eel_accessibility_set_name (gpointer object,
const char *name);
void eel_accessibility_set_description (gpointer object,
const char *description);
char* eel_accessibility_text_get_text (AtkText *text,
gint start_pos,
gint end_pos);
gunichar eel_accessibility_text_get_character_at_offset
(AtkText *text,
gint offset);
char* eel_accessibility_text_get_text_before_offset
(AtkText *text,
gint offset,
AtkTextBoundary boundary_type,
gint *start_offset,
gint *end_offset);
char* eel_accessibility_text_get_text_at_offset
(AtkText *text,
gint offset,
AtkTextBoundary boundary_type,
gint *start_offset,
gint *end_offset);
char* eel_accessibility_text_get_text_after_offset
(AtkText *text,
gint offset,
AtkTextBoundary boundary_type,
gint *start_offset,
gint *end_offset);
gint eel_accessibility_text_get_character_count
(AtkText *text);
#define EEL_TYPE_ACCESSIBLE_TEXT (eel_accessible_text_get_type ())
#define EEL_IS_ACCESSIBLE_TEXT(obj) G_TYPE_CHECK_INSTANCE_TYPE ((obj), EEL_TYPE_ACCESSIBLE_TEXT)
#define EEL_ACCESSIBLE_TEXT(obj) G_TYPE_CHECK_INSTANCE_CAST ((obj), EEL_TYPE_ACCESSIBLE_TEXT, EelAccessibleText)
#define EEL_ACCESSIBLE_TEXT_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), EEL_TYPE_ACCESSIBLE_TEXT, EelAccessibleTextIface))
/* Instead of implementing the AtkText interface, implement this */
typedef struct _EelAccessibleText EelAccessibleText;
typedef struct
{
GTypeInterface parent;
GailTextUtil *(*get_text) (GObject *text);
PangoLayout *(*get_layout) (GObject *text);
} EelAccessibleTextIface;
GType eel_accessible_text_get_type (void);
void eel_accessibility_add_simple_text (GType type);
/* From gail - should be unneccessary when AtkObjectFactory is fixed */
#define EEL_ACCESSIBLE_FACTORY(type, factory_name, type_as_function, opt_create_accessible) \
\
static GType \
type_as_function ## _factory_get_accessible_type (void) \
{ \
return type; \
} \
\
static AtkObject* \
type_as_function ## _factory_create_accessible (GObject *obj) \
{ \
AtkObject *accessible; \
\
g_assert (G_IS_OBJECT (obj)); \
\
accessible = opt_create_accessible (obj); \
\
return accessible; \
} \
\
static void \
type_as_function ## _factory_class_init (AtkObjectFactoryClass *klass) \
{ \
klass->create_accessible = type_as_function ## _factory_create_accessible; \
klass->get_accessible_type = type_as_function ## _factory_get_accessible_type;\
} \
\
static GType \
type_as_function ## _factory_get_type (void) \
{ \
static GType t = 0; \
\
if (!t) \
{ \
static const GTypeInfo tinfo = \
{ \
sizeof (AtkObjectFactoryClass), \
NULL, NULL, (GClassInitFunc) type_as_function ## _factory_class_init, \
NULL, NULL, sizeof (AtkObjectFactory), 0, NULL, NULL \
}; \
\
t = g_type_register_static ( \
ATK_TYPE_OBJECT_FACTORY, factory_name, &tinfo, 0); \
} \
\
return t; \
}
#define EEL_OBJECT_SET_FACTORY(object_type, type_as_function) \
atk_registry_set_factory_type (atk_get_default_registry (), \
object_type, \
type_as_function ## _factory_get_type ())
#endif /* EEL_ACCESSIBILITY_H */
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