Swipe gesture. More...

#include <gtkmm/gestureswipe.h>

Inheritance diagram for Gtk::GestureSwipe:

Public Member Functions
	GestureSwipe (GestureSwipe&& src) noexcept
GestureSwipe&	operator= (GestureSwipe&& src) noexcept
	~GestureSwipe () noexceptoverride
GtkGestureSwipe*	gobj ()
	Provides access to the underlying C GObject. More...
const GtkGestureSwipe*	gobj () const
	Provides access to the underlying C GObject. More...
GtkGestureSwipe*	gobj_copy ()
	Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More...
bool	get_velocity (double& velocity_x, double& velocity_y) const
	If the gesture is recognized, this function returns true and fill in velocity_x and velocity_y with the recorded velocity, as per the last event(s) processed. More...
Glib::SignalProxy< void, double, double >	signal_swipe ()
Public Member Functions inherited from Gtk::GestureSingle
	GestureSingle (GestureSingle&& src) noexcept
GestureSingle&	operator= (GestureSingle&& src) noexcept
	~GestureSingle () noexceptoverride
GtkGestureSingle*	gobj ()
	Provides access to the underlying C GObject. More...
const GtkGestureSingle*	gobj () const
	Provides access to the underlying C GObject. More...
GtkGestureSingle*	gobj_copy ()
	Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More...
bool	get_touch_only () const
	Returns true if the gesture is only triggered by touch events. More...
void	set_touch_only (bool touch_only=true)
	If touch_only is true, gesture will only handle events of type Gdk::TOUCH_BEGIN, Gdk::TOUCH_UPDATE or Gdk::TOUCH_END. More...
bool	get_exclusive () const
	Gets whether a gesture is exclusive. More...
void	set_exclusive (bool exclusive=true) const
	Sets whether gesture is exclusive. More...
unsigned int	get_button () const
	Returns the button number gesture listens for, or 0 if gesture reacts to any button press. More...
void	set_button (unsigned int button=0)
	Sets the button number gesture listens to. More...
unsigned int	get_current_button () const
	Returns the button number currently interacting with gesture, or 0 if there is none. More...
GdkEventSequence*	get_current_sequence ()
	Returns the event sequence currently interacting with gesture. More...
const GdkEventSequence*	get_current_sequence () const
	Returns the event sequence currently interacting with gesture. More...
Glib::PropertyProxy< bool >	property_touch_only ()
	Whether the gesture handles only touch events. More...
Glib::PropertyProxy_ReadOnly< bool >	property_touch_only () const
	Whether the gesture handles only touch events. More...
Glib::PropertyProxy< bool >	property_exclusive ()
	Whether the gesture is exclusive. More...
Glib::PropertyProxy_ReadOnly< bool >	property_exclusive () const
	Whether the gesture is exclusive. More...
Glib::PropertyProxy< unsigned int >	property_button ()
	Mouse button number to listen to, or 0 to listen for any button. More...
Glib::PropertyProxy_ReadOnly< unsigned int >	property_button () const
	Mouse button number to listen to, or 0 to listen for any button. More...
Public Member Functions inherited from Gtk::Gesture
	Gesture (Gesture&& src) noexcept
Gesture&	operator= (Gesture&& src) noexcept
	~Gesture () noexceptoverride
GtkGesture*	gobj ()
	Provides access to the underlying C GObject. More...
const GtkGesture*	gobj () const
	Provides access to the underlying C GObject. More...
GtkGesture*	gobj_copy ()
	Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More...
Glib::RefPtr< Gdk::Device >	get_device ()
	Returns the master Gdk::Device that is currently operating on gesture, or nullptr if the gesture is not being interacted. More...
Glib::RefPtr< const Gdk::Device >	get_device () const
	Returns the master Gdk::Device that is currently operating on gesture, or nullptr if the gesture is not being interacted. More...
bool	set_state (EventSequenceState state)
	Sets the state of all sequences that gesture is currently interacting with. More...
EventSequenceState	get_sequence_state (GdkEventSequence*sequence) const
	Returns the sequence state, as seen by gesture. More...
bool	set_sequence_state (GdkEventSequence*sequence, EventSequenceState state)
	Sets the state of sequence in gesture. More...
std::vector< const GdkEventSequence* >	get_sequences () const
	Returns the list of GdkEventSequences currently being interpreted. More...
GdkEventSequence*	get_last_updated_sequence ()
	Returns the Gdk::EventSequence that was last updated on gesture. More...
const GdkEventSequence*	get_last_updated_sequence () const
	Returns the Gdk::EventSequence that was last updated on gesture. More...
bool	handles_sequence (GdkEventSequence*sequence) const
	Returns true if gesture is currently handling events corresponding to sequence. More...
const GdkEvent*	get_last_event (GdkEventSequence*sequence) const
	Returns the last event that was processed for sequence. More...
bool	get_point (GdkEventSequence*sequence, double& x, double& y) const
	If sequence is currently being interpreted by gesture, this function returns true and fills in x and y with the last coordinates stored for that event sequence. More...
bool	get_bounding_box (Gdk::Rectangle& rect) const
	If there are touch sequences being currently handled by gesture, this function returns true and fills in rect with the bounding box containing all active touches. More...
bool	get_bounding_box_center (double& x, double& y) const
	If there are touch sequences being currently handled by gesture, this function returns true and fills in x and y with the center of the bounding box containing all active touches. More...
bool	is_active () const
	Returns true if the gesture is currently active. More...
bool	is_recognized () const
	Returns true if the gesture is currently recognized. More...
Glib::RefPtr< Gdk::Window >	get_window ()
	Returns the user-defined window that receives the events handled by gesture. More...
Glib::RefPtr< const Gdk::Window >	get_window () const
	Returns the user-defined window that receives the events handled by gesture. More...
void	set_window (const Glib::RefPtr< Gdk::Window >& window)
	Sets a specific window to receive events about, so gesture will effectively handle only events targeting window, or a child of it. More...
void	unset_window ()
	Undoes the effect of previous calls to set_window(), so the gesture will handle events targeting any Gdk::Window that pertains to Gtk::EventController::get_widget(). More...
void	group (const Glib::RefPtr< Gesture >& group_gesture)
	Adds gesture to the same group than group_gesture. More...
void	ungroup ()
	Separates gesture into an isolated group. More...
std::vector< Glib::RefPtr< Gesture > >	get_group ()
	Returns all gestures in the group of gesture. More...
std::vector< Glib::RefPtr< const Gesture > >	get_group () const
	Returns all gestures in the group of gesture. More...
bool	is_grouped_with (const Glib::RefPtr< Gesture >& other) const
	Returns true if both gestures pertain to the same group. More...
Glib::SignalProxy< void, GdkEventSequence* >	signal_begin ()
Glib::SignalProxy< void, GdkEventSequence* >	signal_end ()
Glib::SignalProxy< void, GdkEventSequence* >	signal_update ()
Glib::SignalProxy< void, GdkEventSequence* >	signal_cancel ()
Glib::SignalProxy< void, GdkEventSequence*, EventSequenceState >	signal_sequence_state_changed ()
Glib::PropertyProxy_ReadOnly< unsigned int >	property_n_points () const
	The number of touch points that trigger recognition on this gesture,. More...
Glib::PropertyProxy< Glib::RefPtr< Gdk::Window > >	property_window ()
	If non-nullptr, the gesture will only listen for events that happen on this Gdk::Window, or a child of it. More...
Glib::PropertyProxy_ReadOnly< Glib::RefPtr< Gdk::Window > >	property_window () const
	If non-nullptr, the gesture will only listen for events that happen on this Gdk::Window, or a child of it. More...
Public Member Functions inherited from Gtk::EventController
	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...
static Glib::RefPtr< GestureSwipe >	create (Widget& widget)
	Creates a Gesture that recognizes swipes. More...
Static Public Member Functions inherited from Gtk::GestureSingle
static GType	get_type ()
	Get the GType for this class, for use with the underlying GObject type system. More...
Static Public Member Functions inherited from Gtk::Gesture
static GType	get_type ()
	Get the GType for this class, for use with the underlying GObject type system. More...
Static Public Member Functions inherited from Gtk::EventController
static GType	get_type ()
	Get the GType for this class, for use with the underlying GObject type system. More...

Protected Member Functions
	GestureSwipe ()
	There is no create() method that corresponds to this constructor, because this constructor shall only be used by derived classes. More...
	GestureSwipe (Widget& widget)
	Constructs a Gesture that recognizes swipes. More...
Protected Member Functions inherited from Gtk::GestureSingle
	GestureSingle ()
	There is no create() method that corresponds to this constructor, because only derived classes shall be created. More...
Protected Member Functions inherited from Gtk::Gesture
	Gesture ()
	There is no create() method that corresponds to this constructor, because only derived classes shall be created. More...
Protected Member Functions inherited from Gtk::EventController
	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::GestureSwipe >	wrap (GtkGestureSwipe* object, bool take_copy=false)
	A Glib::wrap() method for this object. More...
Related Functions inherited from Gtk::GestureSingle
Glib::RefPtr< Gtk::GestureSingle >	wrap (GtkGestureSingle* object, bool take_copy=false)
	A Glib::wrap() method for this object. More...
Related Functions inherited from Gtk::Gesture
Glib::RefPtr< Gtk::Gesture >	wrap (GtkGesture* object, bool take_copy=false)
	A Glib::wrap() method for this object. More...
Related Functions inherited from Gtk::EventController
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

Swipe gesture.

This is a Gesture implementation able to recognize swipes. After a press/move/.../move/release sequence happens, signal_swipe() will be emitted, providing the velocity and directionality of the sequence at the time it was lifted.

If the velocity is desired in intermediate points, get_velocity() can be called on eg. a Gesture::signal_update() handler.

All velocities are reported in pixels/sec units.

Since gtkmm 3.14:

Constructor & Destructor Documentation

Gtk::GestureSwipe::GestureSwipe ( GestureSwipe&&  src )

noexcept

Gtk::GestureSwipe::~GestureSwipe ( )

overridenoexcept

Gtk::GestureSwipe::GestureSwipe ( )

protected

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

Gtk::GestureSwipe::GestureSwipe ( Widget&  widget )

explicitprotected

Constructs a Gesture that recognizes swipes.

Member Function Documentation

static Glib::RefPtr<GestureSwipe> Gtk::GestureSwipe::create ( Widget&  widget )

static

Creates a Gesture that recognizes swipes.

Since gtkmm 3.14:

Parameters

widget

Widget the gesture relates to.

Returns

A RefPtr to a new GestureSwipe.

static GType Gtk::GestureSwipe::get_type ( )

static

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

bool Gtk::GestureSwipe::get_velocity	(	double &	velocity_x,
		double &	velocity_y
	)		const

If the gesture is recognized, this function returns true and fill in velocity_x and velocity_y with the recorded velocity, as per the last event(s) processed.

Since gtkmm 3.14:

Parameters

velocity_x	Return value for the velocity in the X axis, in pixels/sec.
velocity_y	Return value for the velocity in the Y axis, in pixels/sec.

Returns

Whether velocity could be calculated.

GtkGestureSwipe* Gtk::GestureSwipe::gobj ( )

inline

Provides access to the underlying C GObject.

const GtkGestureSwipe* Gtk::GestureSwipe::gobj ( ) const

inline

Provides access to the underlying C GObject.

GtkGestureSwipe* Gtk::GestureSwipe::gobj_copy

(

)

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

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

noexcept

Glib::SignalProxy< void,double,double > Gtk::GestureSwipe::signal_swipe

(

)

Slot Prototype:

void on_my_swipe(double velocity_x, double velocity_y)

This signal is emitted when the recognized gesture is finished, velocity and direction are a product of previously recorded events.

Since gtkmm 3.14:

Parameters

velocity_x	Velocity in the X axis, in pixels/sec.
velocity_y	Velocity in the Y axis, in pixels/sec.

Friends And Related Function Documentation

Glib::RefPtr< Gtk::GestureSwipe > wrap ( GtkGestureSwipe *  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.