+/* -*- 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 <[email protected]>

+*/

+

+#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 */