Atk::Object Class Reference

The base object class for the Accessibility Toolkit API. More...

#include <atkmm/object.h>

Inheritance diagram for Atk::Object:

Public Member Functions
AtkObject*	gobj ()
	Provides access to the underlying C GObject.
const AtkObject*	gobj () const
	Provides access to the underlying C GObject.
AtkObject*	gobj_copy ()
	Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.
Glib::ustring	get_name () const
	Gets the accessible name of the accessible. More...
Glib::ustring	get_description () const
	Gets the accessible description of the accessible. More...
Glib::RefPtr< Atk::Object >	get_parent ()
	Gets the accessible parent of the accessible. More...
int	get_n_accessible_children () const
	Gets the number of accessible children of the accessible. More...
Glib::RefPtr< Atk::Object >	get_accessible_child (int i)
	Gets a reference to the specified accessible child of the object. More...
Glib::RefPtr< RelationSet >	get_relation_set ()
	Gets the Atk::RelationSet associated with the object. More...
Role	get_role () const
	Gets the role of the accessible. More...
Glib::RefPtr< StateSet >	get_state_set ()
	Gets a reference to the state set of the accessible; the caller must unreference it when it is no longer needed. More...
int	get_index_in_parent ()
	Gets the 0-based index of this accessible in its parent; returns -1 if the accessible does not have an accessible parent. More...
void	set_name (const Glib::ustring& name)
	Sets the accessible name of the accessible. More...
void	set_description (const Glib::ustring& description)
	Sets the accessible description of the accessible. More...
void	set_parent (const Glib::RefPtr< Atk::Object >& parent)
	Sets the accessible parent of the accessible. More...
void	set_role (Role role)
	Sets the role of the accessible. More...
void	notify_state_change (State state, bool value)
	Emits a state-change signal for the specified state. More...
bool	add_relationship (RelationType relationship, const Glib::RefPtr< Object >& target)
	Adds a relationship of the specified type with the specified target. More...
bool	remove_relationship (RelationType relationship, const Glib::RefPtr< Object >& target)
	Removes a relationship of the specified type with the specified target. More...
Glib::SignalProxy2< void, guint, gpointer >	signal_children_changed ()
Glib::SignalProxy1< void, bool >	signal_focus_event ()
Glib::SignalProxy1< void, AtkPropertyValues* >	signal_property_change ()
Glib::SignalProxy2< void, const Glib::ustring&, bool >	signal_state_change ()
Glib::SignalProxy0< void >	signal_visible_data_changed ()
Glib::SignalProxy1< void, void** >	signal_active_descendant_changed ()
Glib::PropertyProxy < Glib::ustring >	property_accessible_name ()
	Object instance's name formatted for assistive technology access. More...
Glib::PropertyProxy_ReadOnly < Glib::ustring >	property_accessible_name () const
	Object instance's name formatted for assistive technology access. More...
Glib::PropertyProxy < Glib::ustring >	property_accessible_description ()
	Description of an object, formatted for assistive technology access. More...
Glib::PropertyProxy_ReadOnly < Glib::ustring >	property_accessible_description () const
	Description of an object, formatted for assistive technology access. More...
Glib::PropertyProxy < Glib::RefPtr< Atk::Object > >	property_accessible_parent ()
	Is used to notify that the parent has changed. More...
Glib::PropertyProxy_ReadOnly < Glib::RefPtr< Atk::Object > >	property_accessible_parent () const
	Is used to notify that the parent has changed. More...
Glib::PropertyProxy< double >	property_accessible_value ()
	Is used to notify that the value has changed. More...
Glib::PropertyProxy_ReadOnly < double >	property_accessible_value () const
	Is used to notify that the value has changed. More...
Glib::PropertyProxy< int >	property_accessible_role ()
	The accessible role of this object. More...
Glib::PropertyProxy_ReadOnly< int >	property_accessible_role () const
	The accessible role of this object. More...
Glib::PropertyProxy_ReadOnly< int >	property_accessible_component_layer () const
	The accessible layer of this object. More...
Glib::PropertyProxy_ReadOnly< int >	property_accessible_component_mdi_zorder () const
	The accessible MDI value of this object. More...
Glib::PropertyProxy < Glib::ustring >	property_accessible_table_caption ()
	Is used to notify that the table caption has changed; this property should not be used. More...
Glib::PropertyProxy_ReadOnly < Glib::ustring >	property_accessible_table_caption () const
	Is used to notify that the table caption has changed; this property should not be used. More...
Glib::PropertyProxy < Glib::ustring >	property_accessible_table_column_description ()
	Is used to notify that the table column description has changed. More...
Glib::PropertyProxy_ReadOnly < Glib::ustring >	property_accessible_table_column_description () const
	Is used to notify that the table column description has changed. More...
Glib::PropertyProxy < Glib::RefPtr< Atk::Object > >	property_accessible_table_column_header ()
	Is used to notify that the table column header has changed. More...
Glib::PropertyProxy_ReadOnly < Glib::RefPtr< Atk::Object > >	property_accessible_table_column_header () const
	Is used to notify that the table column header has changed. More...
Glib::PropertyProxy < Glib::ustring >	property_accessible_table_row_description ()
	Is used to notify that the table row description has changed. More...
Glib::PropertyProxy_ReadOnly < Glib::ustring >	property_accessible_table_row_description () const
	Is used to notify that the table row description has changed. More...
Glib::PropertyProxy < Glib::RefPtr< Atk::Object > >	property_accessible_table_row_header ()
	Is used to notify that the table row header has changed. More...
Glib::PropertyProxy_ReadOnly < Glib::RefPtr< Atk::Object > >	property_accessible_table_row_header () const
	Is used to notify that the table row header has changed. More...
Glib::PropertyProxy < Glib::RefPtr< Atk::Object > >	property_accessible_table_summary ()
	Is used to notify that the table summary has changed. More...
Glib::PropertyProxy_ReadOnly < Glib::RefPtr< Atk::Object > >	property_accessible_table_summary () const
	Is used to notify that the table summary has changed. More...

Static Public Member Functions
static GType	get_type ()
	Get the GType for this class, for use with the underlying GObject type system.

Protected Member Functions
virtual void	on_children_changed (guint change_index, gpointer changed_child)
	This is a default handler for the signal signal_children_changed().
virtual void	on_focus_event (bool focus_in)
	This is a default handler for the signal signal_focus_event().
virtual void	on_property_change (AtkPropertyValues* values)
	This is a default handler for the signal signal_property_change().
virtual void	on_state_change (const Glib::ustring& name, bool state_set)
	This is a default handler for the signal signal_state_change().
virtual void	on_visible_data_changed ()
	This is a default handler for the signal signal_visible_data_changed().
virtual void	on_active_descendant_changed (void** child)
	This is a default handler for the signal signal_active_descendant_changed().

Related Functions
(Note that these are not member functions.)
Glib::RefPtr< Atk::Object >	wrap (AtkObject* object, bool take_copy=false)
	A Glib::wrap() method for this object. More...

Detailed Description

The base object class for the Accessibility Toolkit API.

This class is the primary class for accessibility support via the Accessibility ToolKit (ATK). Objects which are instances of Atk::Object (or instances of Atk::Object-derived types) are queried for properties which relate basic (and generic) properties of a UI component such as name and description. Instances of Atk::Object may also be queried as to whether they implement other ATK interfaces (e.g. Atk::Action, Atk::Component, etc.), as appropriate to the role which a given UI component plays in a user interface.

All UI components in an application which provide useful information or services to the user must provide corresponding Atk::Object instances on request (in GTK+, for instance, usually on a call to Gtk::Widget::get_accessible()), either via ATK support built into the toolkit for the widget class or ancestor class, or in the case of custom widgets, if the inherited Atk::Object implementation is insufficient, via instances of a new Atk::Object subclass.

Member Function Documentation

bool Atk::Object::add_relationship	(	RelationType	relationship,
		const Glib::RefPtr< Object >&	target
	)

Adds a relationship of the specified type with the specified target.

Parameters

relationship	The Atk::RelationType of the relation.
target	The Atk::Object which is to be the target of the relation.

Returns

true if the relationship is added.

Glib::RefPtr<Atk::Object> Atk::Object::get_accessible_child

(

int

i

)

Gets a reference to the specified accessible child of the object.

The accessible children are 0-based so the first accessible child is at index 0, the second at index 1 and so on.

Parameters

i	A int representing the position of the child, starting from 0.

Returns

An Atk::Object representing the specified accessible child of the accessible.

Glib::ustring Atk::Object::get_description

(

)

const

Gets the accessible description of the accessible.

Returns

A character string representing the accessible description of the accessible.

int Atk::Object::get_index_in_parent

(

)

Gets the 0-based index of this accessible in its parent; returns -1 if the accessible does not have an accessible parent.

Returns

An integer which is the index of the accessible in its parent.

int Atk::Object::get_n_accessible_children

(

)

const

Gets the number of accessible children of the accessible.

Returns

An integer representing the number of accessible children of the accessible.

Glib::ustring Atk::Object::get_name

(

)

const

Gets the accessible name of the accessible.

Returns

A character string representing the accessible name of the object.

Glib::RefPtr<Atk::Object> Atk::Object::get_parent

(

)

Gets the accessible parent of the accessible.

Returns

A Atk::Object representing the accessible parent of the accessible.

Glib::RefPtr<RelationSet> Atk::Object::get_relation_set

(

)

Gets the Atk::RelationSet associated with the object.

Returns

An Atk::RelationSet representing the relation set of the object.

Role Atk::Object::get_role

(

)

const

Gets the role of the accessible.

Returns

An Atk::Role which is the role of the accessible.

Glib::RefPtr<StateSet> Atk::Object::get_state_set

(

)

Gets a reference to the state set of the accessible; the caller must unreference it when it is no longer needed.

Returns

A reference to an Atk::StateSet which is the state set of the accessible.

void Atk::Object::notify_state_change	(	State	state,
		bool	value
	)

Emits a state-change signal for the specified state.

Parameters

state	An Atk::State whose state is changed.
value	A bool which indicates whether the state is being set on or off.

Glib::PropertyProxy_ReadOnly< int > Atk::Object::property_accessible_component_layer

(

)

const

The accessible layer of this object.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< int > Atk::Object::property_accessible_component_mdi_zorder

(

)

const

The accessible MDI value of this object.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< Glib::ustring > Atk::Object::property_accessible_description

(

)

Description of an object, formatted for assistive technology access.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< Glib::ustring > Atk::Object::property_accessible_description

(

)

const

Description of an object, formatted for assistive technology access.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< Glib::ustring > Atk::Object::property_accessible_name

(

)

Object instance's name formatted for assistive technology access.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< Glib::ustring > Atk::Object::property_accessible_name

(

)

const

Object instance's name formatted for assistive technology access.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< Glib::RefPtr<Atk::Object> > Atk::Object::property_accessible_parent

(

)

Is used to notify that the parent has changed.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< Glib::RefPtr<Atk::Object> > Atk::Object::property_accessible_parent

(

)

const

Is used to notify that the parent has changed.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< int > Atk::Object::property_accessible_role

(

)

The accessible role of this object.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< int > Atk::Object::property_accessible_role

(

)

const

The accessible role of this object.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< Glib::ustring > Atk::Object::property_accessible_table_caption

(

)

Is used to notify that the table caption has changed; this property should not be used.

accessible-table-caption-object should be used instead.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< Glib::ustring > Atk::Object::property_accessible_table_caption

(

)

const

Is used to notify that the table caption has changed; this property should not be used.

accessible-table-caption-object should be used instead.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< Glib::ustring > Atk::Object::property_accessible_table_column_description

(

)

Is used to notify that the table column description has changed.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< Glib::ustring > Atk::Object::property_accessible_table_column_description

(

)

const

Is used to notify that the table column description has changed.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< Glib::RefPtr<Atk::Object> > Atk::Object::property_accessible_table_column_header

(

)

Is used to notify that the table column header has changed.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< Glib::RefPtr<Atk::Object> > Atk::Object::property_accessible_table_column_header

(

)

const

Is used to notify that the table column header has changed.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< Glib::ustring > Atk::Object::property_accessible_table_row_description

(

)

Is used to notify that the table row description has changed.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< Glib::ustring > Atk::Object::property_accessible_table_row_description

(

)

const

Is used to notify that the table row description has changed.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< Glib::RefPtr<Atk::Object> > Atk::Object::property_accessible_table_row_header

(

)

Is used to notify that the table row header has changed.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< Glib::RefPtr<Atk::Object> > Atk::Object::property_accessible_table_row_header

(

)

const

Is used to notify that the table row header has changed.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< Glib::RefPtr<Atk::Object> > Atk::Object::property_accessible_table_summary

(

)

Is used to notify that the table summary has changed.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< Glib::RefPtr<Atk::Object> > Atk::Object::property_accessible_table_summary

(

)

const

Is used to notify that the table summary has changed.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< double > Atk::Object::property_accessible_value

(

)

Is used to notify that the value has changed.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< double > Atk::Object::property_accessible_value

(

)

const

Is used to notify that the value has changed.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns

A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

bool Atk::Object::remove_relationship	(	RelationType	relationship,
		const Glib::RefPtr< Object >&	target
	)

Removes a relationship of the specified type with the specified target.

Parameters

relationship	The Atk::RelationType of the relation.
target	The Atk::Object which is the target of the relation to be removed.

Returns

true if the relationship is removed.

void Atk::Object::set_description

(

const Glib::ustring &

description

)

Sets the accessible description of the accessible.

Parameters

description

A character string to be set as the accessible description.

void Atk::Object::set_name

(

const Glib::ustring &

name

)

Sets the accessible name of the accessible.

Parameters

name	A character string to be set as the accessible name.

void Atk::Object::set_parent

(

const Glib::RefPtr< Atk::Object >&

parent

)

Sets the accessible parent of the accessible.

Parameters

parent

An Atk::Object to be set as the accessible parent.

void Atk::Object::set_role

(

Role

role

)

Sets the role of the accessible.

Parameters

role	An Atk::Role to be set as the role.

Glib::SignalProxy1< void,void** > Atk::Object::signal_active_descendant_changed

(

)

Slot Prototype:

void on_my_active_descendant_changed(void** child)

Glib::SignalProxy2< void,guint,gpointer > Atk::Object::signal_children_changed

(

)

Slot Prototype:

void on_my_children_changed(guint change_index, gpointer changed_child)

Glib::SignalProxy1< void,bool > Atk::Object::signal_focus_event

(

)

Slot Prototype:

void on_my_focus_event(bool focus_in)

Glib::SignalProxy1< void,AtkPropertyValues* > Atk::Object::signal_property_change

(

)

Slot Prototype:

void on_my_property_change(AtkPropertyValues* values)

Glib::SignalProxy2< void,const Glib::ustring&,bool > Atk::Object::signal_state_change

(

)

Slot Prototype:

void on_my_state_change(const Glib::ustring& name, bool state_set)

Glib::SignalProxy0< void > Atk::Object::signal_visible_data_changed

(

)

Slot Prototype:

void on_my_visible_data_changed()

Friends And Related Function Documentation

Glib::RefPtr< Atk::Object > wrap ( AtkObject *  object, bool  take_copy = false  )

related

A Glib::wrap() method for this object.

Parameters

object	The C instance.
take_copy	False if the result should take ownership of the C instance. True if it should take a new copy or ref.

Returns

A C++ instance that wraps this C instance.