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Diffstat (limited to 'eel/eel-accessibility.h')
| -rw-r--r-- | eel/eel-accessibility.h | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/eel/eel-accessibility.h b/eel/eel-accessibility.h new file mode 100644 index 00000000..3ca24a0f --- /dev/null +++ b/eel/eel-accessibility.h @@ -0,0 +1,153 @@ +/* -*- 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 */ |