Abstract base class for mouse/single-touch gestures. More...

#include <gtkmm/gesturesingle.h>

Inheritance diagram for Gtk::GestureSingle:

[legend]

Public Member Functions
	GestureSingle (GestureSingle && src) noexcept

GestureSingle &	operator= (GestureSingle && src) noexcept

	~GestureSingle () noexcept override

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 () noexcept override

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 () noexcept override

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...

Static Public Member Functions
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
	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...

Related Functions
(Note that these are not member functions.)
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...

Detailed Description

Abstract base class for mouse/single-touch gestures.

This is a subclass of Gesture, optimized (although not restricted) for dealing with mouse and single-touch gestures. Under interaction, these gestures stick to the first interacting sequence, which is accessible through get_current_sequence() while the gesture is being interacted with.

By default gestures only react to touch events. set_touch_only() can be used to change this default behavior. Callers may also specify a mouse button number to interact with through set_button().

Since gtkmm 3.14:

Constructor & Destructor Documentation

◆ GestureSingle() [1/2]

Gtk::GestureSingle::GestureSingle ( GestureSingle && src )

noexcept

◆ ~GestureSingle()

Gtk::GestureSingle::~GestureSingle ( )

overridenoexcept

◆ GestureSingle() [2/2]

Gtk::GestureSingle::GestureSingle ( )

protected

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

Member Function Documentation

◆ get_button()

unsigned int Gtk::GestureSingle::get_button ( ) const

Returns the button number gesture listens for, or 0 if gesture reacts to any button press.

Since gtkmm 3.14:

Returns: The button number, or 0 for any button.

◆ get_current_button()

unsigned int Gtk::GestureSingle::get_current_button ( ) const

Returns the button number currently interacting with gesture, or 0 if there is none.

Since gtkmm 3.14:

Returns: The current button number.

◆ get_current_sequence() [1/2]

GdkEventSequence * Gtk::GestureSingle::get_current_sequence ( )

Returns the event sequence currently interacting with gesture.

This is only meaningful if is_active() returns true.

Since gtkmm 3.14:

Returns: The current sequence.

◆ get_current_sequence() [2/2]

const GdkEventSequence * Gtk::GestureSingle::get_current_sequence ( ) const

Returns the event sequence currently interacting with gesture.

This is only meaningful if is_active() returns true.

Since gtkmm 3.14:

Returns: The current sequence.

◆ get_exclusive()

bool Gtk::GestureSingle::get_exclusive ( ) const

Gets whether a gesture is exclusive.

For more information, see set_exclusive().

Since gtkmm 3.14:

Returns: Whether the gesture is exclusive.

◆ get_touch_only()

bool Gtk::GestureSingle::get_touch_only ( ) const

Returns true if the gesture is only triggered by touch events.

Since gtkmm 3.14:

Returns: true if the gesture only handles touch events.

◆ get_type()

static GType Gtk::GestureSingle::get_type ( )

static

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

◆ gobj() [1/2]

GtkGestureSingle * Gtk::GestureSingle::gobj ( )

inline

Provides access to the underlying C GObject.

◆ gobj() [2/2]

const GtkGestureSingle * Gtk::GestureSingle::gobj ( ) const

inline

Provides access to the underlying C GObject.

◆ gobj_copy()

GtkGestureSingle * Gtk::GestureSingle::gobj_copy ( )

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

◆ operator=()

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

noexcept

◆ property_button() [1/2]

Glib::PropertyProxy< unsigned int > Gtk::GestureSingle::property_button ( )

Mouse button number to listen to, or 0 to listen for any button.

Since gtkmm 3.14:

Default value: 1

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_button() [2/2]

Glib::PropertyProxy_ReadOnly< unsigned int > Gtk::GestureSingle::property_button ( ) const

Mouse button number to listen to, or 0 to listen for any button.

Since gtkmm 3.14:

Default value: 1

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_exclusive() [1/2]

Glib::PropertyProxy< bool > Gtk::GestureSingle::property_exclusive ( )

Whether the gesture is exclusive.

Exclusive gestures only listen to pointer and pointer emulated events.

Since gtkmm 3.14:

Default value: false

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_exclusive() [2/2]

Glib::PropertyProxy_ReadOnly< bool > Gtk::GestureSingle::property_exclusive ( ) const

Whether the gesture is exclusive.

Exclusive gestures only listen to pointer and pointer emulated events.

Since gtkmm 3.14:

Default value: false

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_touch_only() [1/2]

Glib::PropertyProxy< bool > Gtk::GestureSingle::property_touch_only ( )

Whether the gesture handles only touch events.

Since gtkmm 3.14:

Default value: false

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_touch_only() [2/2]

Glib::PropertyProxy_ReadOnly< bool > Gtk::GestureSingle::property_touch_only ( ) const

Whether the gesture handles only touch events.

Since gtkmm 3.14:

Default value: false

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

◆ set_button()

void Gtk::GestureSingle::set_button ( unsigned int button = 0 )

Sets the button number gesture listens to.

If non-0, every button press from a different button number will be ignored. Touch events implicitly match with button 1.

Since gtkmm 3.14:

Parameters

button Button number to listen to, or 0 for any button.

◆ set_exclusive()

void Gtk::GestureSingle::set_exclusive ( bool exclusive = true ) const

Sets whether gesture is exclusive.

An exclusive gesture will only handle pointer and "pointer emulated" touch events, so at any given time, there is only one sequence able to interact with those.

Since gtkmm 3.14:

Parameters

exclusive true to make gesture exclusive.

◆ set_touch_only()

void Gtk::GestureSingle::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.

If false, mouse events will be handled too.

Since gtkmm 3.14:

Parameters

touch_only Whether gesture handles only touch events.

Friends And Related Function Documentation

◆ wrap()

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

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 Functions

Detailed Description

Constructor & Destructor Documentation

◆ GestureSingle() [1/2]

◆ ~GestureSingle()

◆ GestureSingle() [2/2]

Member Function Documentation

◆ get_button()

◆ get_current_button()

◆ get_current_sequence() [1/2]

◆ get_current_sequence() [2/2]

◆ get_exclusive()

◆ get_touch_only()

◆ get_type()

◆ gobj() [1/2]

◆ gobj() [2/2]

◆ gobj_copy()

◆ operator=()

◆ property_button() [1/2]

◆ property_button() [2/2]

◆ property_exclusive() [1/2]

◆ property_exclusive() [2/2]

◆ property_touch_only() [1/2]

◆ property_touch_only() [2/2]

◆ set_button()

◆ set_exclusive()

◆ set_touch_only()

Friends And Related Function Documentation

◆ wrap()