gtkmm: Gtk::GestureSwipe Class Reference

Swipe gesture. More...

#include <gtkmm/gestureswipe.h>

Inheritance diagram for Gtk::GestureSwipe:

Public Member Functions

 GestureSwipe (GestureSwipe&& src) noexcept
 
GestureSwipeoperator= (GestureSwipe&& src) noexcept
 
 ~GestureSwipe () noexcept override
 
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
 
GestureSingleoperator= (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::EventType::TOUCH_BEGIN, Gdk::EventType::TOUCH_UPDATE or Gdk::EventType::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...

 
Gdk::EventSequence* get_current_sequence ()
 Returns the event sequence currently interacting with gesture. More...

 
const Gdk::EventSequence* 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
 
Gestureoperator= (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::Deviceget_device ()
 Returns the logical Gdk::Device that is currently operating on gesture, or nullptr if the gesture is not being interacted. More...

 
Glib::RefPtr< const Gdk::Deviceget_device () const
 Returns the logical 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 (Gdk::EventSequence* sequence) const
 Returns the sequence state, as seen by gesture. More...

 
bool set_sequence_state (Gdk::EventSequence* sequence, EventSequenceState state)
 Sets the state of sequence in gesture. More...

 
std::vector< const Gdk::EventSequence* > get_sequences () const
 Returns the list of Gdk::EventSequences currently being interpreted. More...

 
Gdk::EventSequence* get_last_updated_sequence ()
 Returns the Gdk::EventSequence that was last updated on gesture. More...

 
const Gdk::EventSequence* get_last_updated_sequence () const
 Returns the Gdk::EventSequence that was last updated on gesture. More...

 
bool handles_sequence (Gdk::EventSequence* sequence) const
 Returns true if gesture is currently handling events corresponding to sequence. More...

 
Glib::RefPtr< Gdk::Eventget_last_event (Gdk::EventSequence* sequence)
 Returns the last event that was processed for sequence. More...

 
Glib::RefPtr< const Gdk::Eventget_last_event (Gdk::EventSequence* sequence) const
 Returns the last event that was processed for sequence. More...

 
bool get_point (Gdk::EventSequence* 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...

 
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(Gdk::EventSequence*)> signal_begin ()
 
Glib::SignalProxy< void(Gdk::EventSequence*)> signal_end ()
 
Glib::SignalProxy< void(Gdk::EventSequence*)> signal_update ()
 
Glib::SignalProxy< void(Gdk::EventSequence*)> signal_cancel ()
 
Glib::SignalProxy< void(Gdk::EventSequence*, 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...

 
- Public Member Functions inherited from Gtk::EventController
 EventController (EventController&& src) noexcept
 
EventControlleroperator= (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...

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

 
const Widgetget_widget () const
 Returns the Gtk::Widget this controller relates to. 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...

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

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

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

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

 
Glib::RefPtr< const Gdk::Eventget_current_event () const
 Returns the event that is currently being handled by the controller, and nullptr at other times. More...

 
guint32 get_current_event_time () const
 Returns the timestamp of the event that is currently being handled by the controller, and 0 otherwise. More...

 
Glib::RefPtr< Gdk::Deviceget_current_event_device ()
 Returns the device of the event that is currently being handled by the controller, and nullptr otherwise. More...

 
Glib::RefPtr< const Gdk::Deviceget_current_event_device () const
 Returns the event that is currently being handled by the controller, and nullptr at other times. More...

 
Gdk::ModifierType get_current_event_state () const
 Returns the modifier state of the event that is currently being handled by the controller, and 0 otherwise. More...

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

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

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

 
Glib::PropertyProxy< PropagationLimitproperty_propagation_limit ()
 The limit for which events this controller will handle. More...

 
Glib::PropertyProxy_ReadOnly< PropagationLimitproperty_propagation_limit () const
 The limit for which events this controller will handle. More...

 
Glib::PropertyProxy< Glib::ustringproperty_name ()
 The name for this controller, typically used for debugging purposes. More...

 
Glib::PropertyProxy_ReadOnly< Glib::ustringproperty_name () const
 The name for this controller, typically used for debugging purposes. More...

 
- Public Member Functions inherited from Glib::Object
 Object (const Object &)=delete
 
Objectoperator= (const Object &)=delete
 
 Object (Object &&src) noexcept
 
Objectoperator= (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::Objectwrap (GObject *object, bool take_copy=false)
 
- Public Member Functions inherited from Glib::ObjectBase
 ObjectBase (const ObjectBase &)=delete
 
ObjectBaseoperator= (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
 
PropertyType get_property (const Glib::ustring &property_name) const
 
sigc::connection connect_property_changed (const Glib::ustring &property_name, const sigc::slot< void()> &slot)
 
sigc::connection connect_property_changed (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) noexcept
 
 ~trackable ()
 
void add_destroy_notify_callback (notifiable *data, func_destroy_notify func) const
 
void notify_callbacks ()
 
trackableoperator= (const trackable &src)
 
trackableoperator= (trackable &&src) noexcept
 
void remove_destroy_notify_callback (notifiable *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< GestureSwipecreate ()
 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 ()
 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 () noexcept override
 
- 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
 
ObjectBaseoperator= (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::GestureSwipewrap (GtkGestureSwipe* 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
 
- Public Types inherited from sigc::notifiable
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

Constructs a Gesture that recognizes swipes.

Member Function Documentation

static Glib::RefPtr<GestureSwipe> Gtk::GestureSwipe::create ( )
static

Creates a Gesture that recognizes swipes.

Since gtkmm 3.14:
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.

Parameters
velocity_xReturn value for the velocity in the X axis, in pixels/sec.
velocity_yReturn 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)

Flags: Run Last

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

Parameters
velocity_xVelocity in the X axis, in pixels/sec.
velocity_yVelocity 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
objectThe C instance.
take_copyFalse 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.