gtkmm: Gtk::EventController Class Reference

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

#include <gtkmm/eventcontroller.h>

Inheritance diagram for Gtk::EventController:

Public Member Functions

EventController ( EventController && src) noexcept
EventController & operator= ( EventController && src) noexcept
~EventController () noexceptoverride
GtkEventController* gobj ()
Provides access to the underlying C GObject. More...

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

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

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

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

bool handle_event (const GdkEvent* event)
Feeds an events into controller , so it can be interpreted and the controller actions triggered. More...

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

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

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

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

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

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

- Public Member Functions inherited from Glib::Object
Object (const Object &)=delete
Object & operator= (const Object &)=delete
Object ( Object &&src) noexcept
Object & operator= ( Object &&src) noexcept
void * get_data (const QueryQuark &key)
void set_data (const Quark &key, void *data)
void set_data (const Quark &key, void *data, DestroyNotify notify)
void remove_data (const QueryQuark &quark)
void * steal_data (const QueryQuark &quark)
Glib::RefPtr < Glib::Object > wrap (GObject *object, bool take_copy=false)
- Public Member Functions inherited from Glib::ObjectBase
ObjectBase (const ObjectBase &)=delete
ObjectBase & operator= (const ObjectBase &)=delete
void set_property_value (const Glib::ustring &property_name, const Glib::ValueBase &value)
void get_property_value (const Glib::ustring &property_name, Glib::ValueBase &value) const
void set_property (const Glib::ustring &property_name, const PropertyType &value)
void get_property (const Glib::ustring &property_name, PropertyType &value) const
void connect_property_changed (const Glib::ustring &property_name, const sigc::slot < void > &slot)
void connect_property_changed (const Glib::ustring &property_name, sigc::slot < void > &&slot)
sigc::connection connect_property_changed_with_return (const Glib::ustring &property_name, const sigc::slot < void > &slot)
sigc::connection connect_property_changed_with_return (const Glib::ustring &property_name, sigc::slot < void > &&slot)
void freeze_notify ()
void thaw_notify ()
virtual void reference () const
virtual void unreference () const
GObject * gobj ()
const GObject * gobj () const
GObject * gobj_copy () const
- Public Member Functions inherited from sigc::trackable
trackable () noexcept
trackable (const trackable &src) noexcept
trackable ( trackable &&src)
~trackable ()
void add_destroy_notify_callback (void *data, func_destroy_notify func) const
void notify_callbacks ()
trackable & operator= (const trackable &src)
trackable & operator= ( trackable &&src)
void remove_destroy_notify_callback (void *data) const

Static Public Member Functions

static GType get_type ()
Get the GType for this class, for use with the underlying GObject type system. More...

Protected Member Functions

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

- Protected Member Functions inherited from Glib::Object
Object ()
Object (const Glib::ConstructParams &construct_params)
Object (GObject *castitem)
~Object () noexceptoverride
- Protected Member Functions inherited from Glib::ObjectBase
ObjectBase ()
ObjectBase (const char *custom_type_name)
ObjectBase (const std::type_info &custom_type_info)
ObjectBase ( ObjectBase &&src) noexcept
ObjectBase & operator= ( ObjectBase &&src) noexcept
virtual ~ObjectBase () noexcept=0
void initialize (GObject *castitem)
void initialize_move (GObject *castitem, Glib::ObjectBase *previous_wrapper)

Related Functions

(Note that these are not member functions.)

Glib::RefPtr < Gtk::EventController > wrap (GtkEventController* object, bool take_copy=false)
A Glib::wrap() method for this object. More...

Additional Inherited Members

- Public Types inherited from Glib::Object
typedef void(*)(gpointer data DestroyNotify )
- Public Types inherited from sigc::trackable
typedef internal::func_destroy_notify func_destroy_notify

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 GdkEvents, and possibly trigger actions as a consequence of those.

Since gtkmm 3.14:

Constructor & Destructor Documentation

Gtk::EventController::EventController ( EventController && src )
noexcept
Gtk::EventController::~EventController ( )
override noexcept
Gtk::EventController::EventController ( )
protected

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

Member Function Documentation

PropagationPhase Gtk::EventController::get_propagation_phase ( ) const

Gets the propagation phase at which controller handles events.

Since gtkmm 3.14:
Returns
The propagation phase.
static GType Gtk::EventController::get_type ( )
static

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

Widget * Gtk::EventController::get_widget ( )

Returns the Gtk::Widget this controller relates to.

Since gtkmm 3.14:
Returns
A Gtk::Widget .
const Widget * Gtk::EventController::get_widget ( ) const

Returns the Gtk::Widget this controller relates to.

Since gtkmm 3.14:
Returns
A Gtk::Widget .
GtkEventController* Gtk::EventController::gobj ( )
inline

Provides access to the underlying C GObject.

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

Provides access to the underlying C GObject.

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.

bool Gtk::EventController::handle_event ( const GdkEvent * event )

Feeds an events into controller , so it can be interpreted and the controller actions triggered.

Since gtkmm 3.14:
Parameters
event A Gdk::Event .
Returns
true if the event was potentially useful to trigger the controller action.
EventController & Gtk::EventController::operator= ( EventController && src )
noexcept
Glib::PropertyProxy < PropagationPhase > Gtk::EventController::property_propagation_phase ( )

The propagation phase at which this controller will handle events.

Since gtkmm 3.14:
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 < PropagationPhase > Gtk::EventController::property_propagation_phase ( ) const

The propagation phase at which this controller will handle events.

Since gtkmm 3.14:
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 < Widget * > Gtk::EventController::property_widget ( ) const

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

Since gtkmm 3.14:
Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
void Gtk::EventController::reset ( )

Resets the controller to a clean state.

Every interaction the controller did through Gtk::EventController::signal_handle_event() will be dropped at this point.

Since gtkmm 3.14:
void Gtk::EventController::set_propagation_phase ( PropagationPhase phase )

Sets the propagation phase at which a controller handles events.

If phase is Gtk::PHASE_NONE , no automatic event handling will be performed, but other additional gesture maintenance will. In that phase, the events can be managed by calling handle_event() .

Since gtkmm 3.14:
Parameters
phase A propagation phase.

Friends And Related Function Documentation

Glib::RefPtr < Gtk::EventController > wrap ( GtkEventController * 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.