gtkmm: Gtk::EventController Class Reference

Self-contained handler of series of events. More...

#include <gtkmm/eventcontroller.h>

Inheritance diagram for Gtk::EventController:

[legend]

Public Member Functions
	EventController (EventController &&src) noexcept

EventController &	operator= (EventController &&src) noexcept

	~EventController () noexcept override

GtkEventController *	gobj ()
	Provides access to the underlying C GObject.

const GtkEventController *	gobj () const
	Provides access to the underlying C GObject.

GtkEventController *	gobj_copy ()
	Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.

Widget *	get_widget ()
	Returns the `Gtk::Widget` this controller relates to.

const Widget *	get_widget () const
	Returns the `Gtk::Widget` this controller relates to.

void	reset ()
	Resets the controller to a clean state.

PropagationPhase	get_propagation_phase () const
	Gets the propagation phase at which controller handles events.

void	set_propagation_phase (PropagationPhase phase)
	Sets the propagation phase at which a controller handles events.

PropagationLimit	get_propagation_limit () const
	Gets the propagation limit of the event controller.

void	set_propagation_limit (PropagationLimit limit)
	Sets the event propagation limit on the event controller.

Glib::ustring	get_name () const
	Gets the name of controller.

void	set_name (const Glib::ustring & name)
	Sets a name on the controller that can be used for debugging.

Glib::RefPtr< const Gdk::Event >	get_current_event () const
	Returns the event that is currently being handled by the controller.

guint32	get_current_event_time () const
	Returns the timestamp of the event that is currently being handled by the controller.

Glib::RefPtr< Gdk::Device >	get_current_event_device ()
	Returns the device of the event that is currently being handled by the controller.

Glib::RefPtr< const Gdk::Device >	get_current_event_device () const
	Returns the event that is currently being handled by the controller.

Gdk::ModifierType	get_current_event_state () const
	Returns the modifier state of the event that is currently being handled by the controller.

Glib::PropertyProxy_ReadOnly< Widget * >	property_widget () const
	The widget receiving the `Gdk::Events` that the controller will handle.

Glib::PropertyProxy< PropagationPhase >	property_propagation_phase ()
	The propagation phase at which this controller will handle events.

Glib::PropertyProxy_ReadOnly< PropagationPhase >	property_propagation_phase () const
	The propagation phase at which this controller will handle events.

Glib::PropertyProxy< PropagationLimit >	property_propagation_limit ()
	The limit for which events this controller will handle.

Glib::PropertyProxy_ReadOnly< PropagationLimit >	property_propagation_limit () const
	The limit for which events this controller will handle.

Glib::PropertyProxy< Glib::ustring >	property_name ()
	The name for this controller, typically used for debugging purposes.

Glib::PropertyProxy_ReadOnly< Glib::ustring >	property_name () const
	The name for this controller, typically used for debugging purposes.

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
	EventController ()
	There is no create() method that corresponds to this constructor, because only derived classes shall be created.

Related Symbols
(Note that these are not member symbols.)
Glib::RefPtr< Gtk::EventController >	wrap (GtkEventController *object, bool take_copy=false)
	A Glib::wrap() method for this object.

Detailed Description

Self-contained handler of series of events.

This is an abstract base class, low-level implementation for event controllers. Those react to a series of Gdk::Events, and possibly trigger actions as a consequence of those.

Since gtkmm 3.14:

Constructor & Destructor Documentation

◆ EventController() [1/2]

Gtk::EventController::EventController ( EventController && src )

noexcept

◆ ~EventController()

Gtk::EventController::~EventController ( )

overridenoexcept

◆ EventController() [2/2]

Gtk::EventController::EventController ( )

protected

There is no create() method that corresponds to this constructor, because only derived classes shall be created.

Member Function Documentation

◆ get_current_event()

Glib::RefPtr< const Gdk::Event > Gtk::EventController::get_current_event ( ) const

Returns the event that is currently being handled by the controller.

At other times, nullptr is returned.

Returns: The event that is currently handled by controller.

◆ get_current_event_device() [1/2]

Glib::RefPtr< Gdk::Device > Gtk::EventController::get_current_event_device ( )

Returns the device of the event that is currently being handled by the controller.

At other times, nullptr is returned.

Returns: Device of the event is currently handled by controller.

◆ get_current_event_device() [2/2]

Glib::RefPtr< const Gdk::Device > Gtk::EventController::get_current_event_device ( ) const

Returns the event that is currently being handled by the controller.

At other times, nullptr is returned.

Returns: The event that is currently handled by controller.

◆ get_current_event_state()

Gdk::ModifierType Gtk::EventController::get_current_event_state ( ) const

Returns the modifier state of the event that is currently being handled by the controller.

At other times, 0 is returned.

Returns: Modifier state of the event is currently handled by controller.

◆ get_current_event_time()

guint32 Gtk::EventController::get_current_event_time ( ) const

Returns the timestamp of the event that is currently being handled by the controller.

At other times, 0 is returned.

Returns: Timestamp of the event is currently handled by controller.

◆ get_name()

Glib::ustring Gtk::EventController::get_name ( ) const

Gets the name of controller.

Returns: The controller name.

◆ get_propagation_limit()

PropagationLimit Gtk::EventController::get_propagation_limit ( ) const

Gets the propagation limit of the event controller.

Returns: The propagation limit.

◆ get_propagation_phase()

PropagationPhase Gtk::EventController::get_propagation_phase ( ) const

Gets the propagation phase at which controller handles events.

Returns: The propagation phase.

◆ get_type()

static GType Gtk::EventController::get_type ( )

static

Get the GType for this class, for use with the underlying GObject type system.

◆ get_widget() [1/2]

Widget * Gtk::EventController::get_widget ( )

Returns the Gtk::Widget this controller relates to.

Returns: A Gtk::Widget.

◆ get_widget() [2/2]

const Widget * Gtk::EventController::get_widget ( ) const

Returns the Gtk::Widget this controller relates to.

Returns: A Gtk::Widget.

◆ gobj() [1/2]

GtkEventController * Gtk::EventController::gobj ( )

inline

Provides access to the underlying C GObject.

◆ gobj() [2/2]

const GtkEventController * Gtk::EventController::gobj ( ) const

inline

Provides access to the underlying C GObject.

◆ gobj_copy()

GtkEventController * Gtk::EventController::gobj_copy ( )

Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.

◆ operator=()

EventController & Gtk::EventController::operator= ( EventController && src )

noexcept

◆ property_name() [1/2]

Glib::PropertyProxy< Glib::ustring > Gtk::EventController::property_name ( )

The name for this controller, typically used for debugging purposes.

Default value: ""

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.

◆ property_name() [2/2]

Glib::PropertyProxy_ReadOnly< Glib::ustring > Gtk::EventController::property_name ( ) const

The name for this controller, typically used for debugging purposes.

Default value: ""

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

◆ property_propagation_limit() [1/2]

Glib::PropertyProxy< PropagationLimit > Gtk::EventController::property_propagation_limit ( )

The limit for which events this controller will handle.

Default value: Gtk::PropagationLimit::SAME_NATIVE

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.

◆ property_propagation_limit() [2/2]

Glib::PropertyProxy_ReadOnly< PropagationLimit > Gtk::EventController::property_propagation_limit ( ) const

The limit for which events this controller will handle.

Default value: Gtk::PropagationLimit::SAME_NATIVE

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

◆ property_propagation_phase() [1/2]

Glib::PropertyProxy< PropagationPhase > Gtk::EventController::property_propagation_phase ( )

The propagation phase at which this controller will handle events.

Default value: Gtk::PropagationPhase::BUBBLE

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.

◆ property_propagation_phase() [2/2]

Glib::PropertyProxy_ReadOnly< PropagationPhase > Gtk::EventController::property_propagation_phase ( ) const

The propagation phase at which this controller will handle events.

Default value: Gtk::PropagationPhase::BUBBLE

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

◆ property_widget()

Glib::PropertyProxy_ReadOnly< Widget * > Gtk::EventController::property_widget ( ) const

The widget receiving the Gdk::Events that the controller will handle.

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

◆ reset()

void Gtk::EventController::reset ( )

Resets the controller to a clean state.

◆ set_name()

void Gtk::EventController::set_name ( const Glib::ustring & name )

Sets a name on the controller that can be used for debugging.

Parameters

name	A name for controller.

◆ set_propagation_limit()

void Gtk::EventController::set_propagation_limit ( PropagationLimit limit )

Sets the event propagation limit on the event controller.

If the limit is set to Gtk::PropagationLimit::SAME_NATIVE, the controller won't handle events that are targeted at widgets on a different surface, such as popovers.

Parameters

limit The propagation limit.

◆ set_propagation_phase()

void Gtk::EventController::set_propagation_phase ( PropagationPhase phase )

Sets the propagation phase at which a controller handles events.

If phase is Gtk::PropagationPhase::NONE, no automatic event handling will be performed, but other additional gesture maintenance will.

Parameters

phase A propagation phase.

Friends And Related Symbol Documentation

◆ wrap()

Glib::RefPtr< Gtk::EventController > wrap	(	GtkEventController *	object,
		bool	take_copy = `false`
	)

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.

Public Member Functions

Static Public Member Functions

Protected Member Functions

Related Symbols

Detailed Description

Constructor & Destructor Documentation

◆ EventController() [1/2]

◆ ~EventController()

◆ EventController() [2/2]

Member Function Documentation

◆ get_current_event()

◆ get_current_event_device() [1/2]

◆ get_current_event_device() [2/2]

◆ get_current_event_state()

◆ get_current_event_time()

◆ get_name()

◆ get_propagation_limit()

◆ get_propagation_phase()

◆ get_type()

◆ get_widget() [1/2]

◆ get_widget() [2/2]

◆ gobj() [1/2]

◆ gobj() [2/2]

◆ gobj_copy()

◆ operator=()

◆ property_name() [1/2]

◆ property_name() [2/2]

◆ property_propagation_limit() [1/2]

◆ property_propagation_limit() [2/2]

◆ property_propagation_phase() [1/2]

◆ property_propagation_phase() [2/2]

◆ property_widget()

◆ reset()

◆ set_name()

◆ set_propagation_limit()

◆ set_propagation_phase()

Friends And Related Symbol Documentation

◆ wrap()