class Gtk::GesturePan

Overview

Recognizes pan gestures.

These are drags that are locked to happen along one axis. The axis that a Gtk::GesturePan handles is defined at construct time, and can be changed through Gtk::GesturePan#orientation=.

When the gesture starts to be recognized, Gtk::GesturePan will attempt to determine as early as possible whether the sequence is moving in the expected direction, and denying the sequence if this does not happen.

Once a panning gesture along the expected axis is recognized, the Gtk::GesturePan::#pan signal will be emitted as input events are received, containing the offset in the given axis.

Defined in:

lib/gi-crystal/src/auto/gtk-4.0/gesture_pan.cr

Constructors

Class Method Summary

Instance Method Summary

Instance methods inherited from class Gtk::GestureDrag

==(other : self) ==, drag_begin_signal drag_begin_signal, drag_end_signal drag_end_signal, drag_update_signal drag_update_signal, hash(hasher) hash, offset : Bool offset, start_point : Bool start_point

Constructor methods inherited from class Gtk::GestureDrag

new : self
new(*, button : UInt32 | Nil = nil, exclusive : Bool | Nil = nil, n_points : UInt32 | Nil = nil, name : String | Nil = nil, propagation_limit : Gtk::PropagationLimit | Nil = nil, propagation_phase : Gtk::PropagationPhase | Nil = nil, touch_only : Bool | Nil = nil, widget : Gtk::Widget | Nil = nil) new

Class methods inherited from class Gtk::GestureDrag

g_type : UInt64 g_type

Instance methods inherited from class Gtk::GestureSingle

==(other : self) ==, button : UInt32 button, button=(button : UInt32) : Nil button=, current_button : UInt32 current_button, current_sequence : Gdk::EventSequence | Nil current_sequence, exclusive : Bool exclusive, exclusive=(exclusive : Bool) : Nil exclusive=, exclusive? : Bool exclusive?, hash(hasher) hash, touch_only : Bool touch_only, touch_only=(touch_only : Bool) : Nil touch_only=, touch_only? : Bool touch_only?

Constructor methods inherited from class Gtk::GestureSingle

new
new(*, button : UInt32 | Nil = nil, exclusive : Bool | Nil = nil, n_points : UInt32 | Nil = nil, name : String | Nil = nil, propagation_limit : Gtk::PropagationLimit | Nil = nil, propagation_phase : Gtk::PropagationPhase | Nil = nil, touch_only : Bool | Nil = nil, widget : Gtk::Widget | Nil = nil) new

Class methods inherited from class Gtk::GestureSingle

g_type : UInt64 g_type

Instance methods inherited from class Gtk::Gesture

==(other : self) ==, begin_signal begin_signal, bounding_box : Gdk::Rectangle bounding_box, bounding_box_center(x : Float64, y : Float64) : Bool bounding_box_center, cancel_signal cancel_signal, device : Gdk::Device | Nil device, end_signal end_signal, group(gesture : Gtk::Gesture) : Nil
group : GLib::List group, handles_sequence(sequence : Gdk::EventSequence | Nil) : Bool handles_sequence, hash(hasher) hash, is_active : Bool is_active, is_grouped_with(other : Gtk::Gesture) : Bool is_grouped_with, is_recognized : Bool is_recognized, last_event(sequence : Gdk::EventSequence | Nil) : Gdk::Event | Nil last_event, last_updated_sequence : Gdk::EventSequence | Nil last_updated_sequence, n_points : UInt32 n_points, n_points=(value : UInt32) : UInt32 n_points=, point(sequence : Gdk::EventSequence | Nil) : Bool point, sequence_state(sequence : Gdk::EventSequence) : Gtk::EventSequenceState sequence_state, sequence_state_changed_signal sequence_state_changed_signal, sequences : GLib::List sequences, set_sequence_state(sequence : Gdk::EventSequence, state : Gtk::EventSequenceState) : Bool set_sequence_state, state=(state : Gtk::EventSequenceState) : Bool state=, ungroup : Nil ungroup, update_signal update_signal

Constructor methods inherited from class Gtk::Gesture

new
new(*, n_points : UInt32 | Nil = nil, name : String | Nil = nil, propagation_limit : Gtk::PropagationLimit | Nil = nil, propagation_phase : Gtk::PropagationPhase | Nil = nil, widget : Gtk::Widget | Nil = nil) new

Class methods inherited from class Gtk::Gesture

g_type : UInt64 g_type

Instance methods inherited from class Gtk::EventController

==(other : self) ==, current_event : Gdk::Event | Nil current_event, current_event_device : Gdk::Device | Nil current_event_device, current_event_state : Gdk::ModifierType current_event_state, current_event_time : UInt32 current_event_time, hash(hasher) hash, name : String | Nil name, name=(value : String) : String
name=(value : Nil) : Nil
name=(name : String | Nil) : Nil name=, name? : String | Nil name?, propagation_limit : Gtk::PropagationLimit propagation_limit, propagation_limit=(limit : Gtk::PropagationLimit) : Nil propagation_limit=, propagation_phase : Gtk::PropagationPhase propagation_phase, propagation_phase=(phase : Gtk::PropagationPhase) : Nil propagation_phase=, reset : Nil reset, static_name=(name : String | Nil) : Nil static_name=, widget : Gtk::Widget | Nil widget

Constructor methods inherited from class Gtk::EventController

new
new(*, name : String | Nil = nil, propagation_limit : Gtk::PropagationLimit | Nil = nil, propagation_phase : Gtk::PropagationPhase | Nil = nil, widget : Gtk::Widget | Nil = nil) new

Class methods inherited from class Gtk::EventController

g_type : UInt64 g_type

Instance methods inherited from class GObject::Object

==(other : self) ==, bind_property(source_property : String, target : GObject::Object, target_property : String, flags : GObject::BindingFlags) : GObject::Binding bind_property, bind_property_full(source_property : String, target : GObject::Object, target_property : String, flags : GObject::BindingFlags, transform_to : GObject::Closure, transform_from : GObject::Closure) : GObject::Binding bind_property_full, data(key : String) : Pointer(Void) | Nil data, finalize finalize, freeze_notify : Nil freeze_notify, getv(names : Enumerable(String), values : Enumerable(_)) : Nil getv, hash(hasher) hash, notify(property_name : String) : Nil notify, notify_by_pspec(pspec : GObject::ParamSpec) : Nil notify_by_pspec, notify_signal notify_signal, property(property_name : String, value : _) : Nil property, qdata(quark : UInt32) : Pointer(Void) | Nil qdata, ref_count : UInt32 ref_count, run_dispose : Nil run_dispose, set_data(key : String, data : Pointer(Void) | Nil) : Nil set_data, set_property(property_name : String, value : _) : Nil set_property, steal_data(key : String) : Pointer(Void) | Nil steal_data, steal_qdata(quark : UInt32) : Pointer(Void) | Nil steal_qdata, thaw_notify : Nil thaw_notify, to_unsafe : Pointer(Void) to_unsafe, watch_closure(closure : GObject::Closure) : Nil watch_closure

Constructor methods inherited from class GObject::Object

cast(obj : GObject::Object) : self cast, new(pointer : Pointer(Void), transfer : GICrystal::Transfer)
new new, newv(object_type : UInt64, parameters : Enumerable(GObject::Parameter)) : self newv

Class methods inherited from class GObject::Object

cast?(obj : GObject::Object) : self | Nil cast?, compat_control(what : UInt64, data : Pointer(Void) | Nil) : UInt64 compat_control, g_type : UInt64 g_type, interface_find_property(g_iface : GObject::TypeInterface, property_name : String) : GObject::ParamSpec interface_find_property, interface_list_properties(g_iface : GObject::TypeInterface) : Enumerable(GObject::ParamSpec) interface_list_properties

Macros inherited from class GObject::Object

previous_vfunc(*args) previous_vfunc, previous_vfunc!(*args) previous_vfunc!, signal(signature) signal

Constructor Detail

def self.new(orientation : Gtk::Orientation) : self #

Returns a newly created Gtk::Gesture that recognizes pan gestures.


def self.new #

Initialize a new GesturePan.


def self.new(*, button : UInt32 | Nil = nil, exclusive : Bool | Nil = nil, n_points : UInt32 | Nil = nil, name : String | Nil = nil, orientation : Gtk::Orientation | Nil = nil, propagation_limit : Gtk::PropagationLimit | Nil = nil, propagation_phase : Gtk::PropagationPhase | Nil = nil, touch_only : Bool | Nil = nil, widget : Gtk::Widget | Nil = nil) #

Class Method Detail

def self.g_type : UInt64 #

Returns the type id (GType) registered in GLib type system.


Instance Method Detail

def ==(other : self) #
Description copied from class Reference

Returns true if this reference is the same as other. Invokes same?.


def hash(hasher) #
Description copied from class Reference

See Object#hash(hasher)


def orientation : Gtk::Orientation #

Returns the orientation of the pan gestures that this gesture expects.


def orientation=(orientation : Gtk::Orientation) : Nil #

Sets the orientation to be expected on pan gestures.


def pan_signal #