class Gtk::GesturePan

Overview

GtkGesturePan is a GtkGesture for pan gestures.

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

When the gesture starts to be recognized, GtkGesturePan 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

drag_begin_signal drag_begin_signal, drag_end_signal drag_end_signal, drag_update_signal drag_update_signal, offset(x : Float64?, y : Float64?) : Bool offset, start_point(x : Float64?, y : Float64?) : Bool start_point

Constructor methods inherited from class Gtk::GestureDrag

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

Class methods inherited from class Gtk::GestureDrag

g_type : UInt64 g_type

Instance methods inherited from class Gtk::GestureSingle

button : UInt32 button, button=(button : UInt32) : Nil button=, current_button : UInt32 current_button, current_sequence : Gdk::EventSequence? current_sequence, exclusive : Bool exclusive, exclusive=(exclusive : Bool) : Nil exclusive=, exclusive? : Bool exclusive?, 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, exclusive : Bool? = nil, n_points : UInt32? = nil, name : String? = nil, propagation_limit : Gtk::PropagationLimit? = nil, propagation_phase : Gtk::PropagationPhase? = nil, touch_only : Bool? = nil, widget : Gtk::Widget? = nil)
new

Class methods inherited from class Gtk::GestureSingle

g_type : UInt64 g_type

Instance methods inherited from class Gtk::Gesture

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? device, end_signal end_signal, group(gesture : Gtk::Gesture) : Nil
group : GLib::List
group
, handles_sequence(sequence : Gdk::EventSequence?) : Bool handles_sequence, 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?) : Gdk::Event? last_event, last_updated_sequence : Gdk::EventSequence? last_updated_sequence, n_points : UInt32 n_points, n_points=(value : UInt32) : UInt32 n_points=, point(sequence : Gdk::EventSequence?) : 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, name : String? = nil, propagation_limit : Gtk::PropagationLimit? = nil, propagation_phase : Gtk::PropagationPhase? = nil, widget : Gtk::Widget? = nil)
new

Class methods inherited from class Gtk::Gesture

g_type : UInt64 g_type

Instance methods inherited from class Gtk::EventController

current_event : Gdk::Event? current_event, current_event_device : Gdk::Device? current_event_device, current_event_state : Gdk::ModifierType current_event_state, current_event_time : UInt32 current_event_time, name : String? name, name=(value : String) : String
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, widget : Gtk::Widget widget

Constructor methods inherited from class Gtk::EventController

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

Class methods inherited from class Gtk::EventController

g_type : UInt64 g_type

Instance methods inherited from class GObject::Object

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)? data, finalize finalize, freeze_notify : Nil freeze_notify, getv(names : Enumerable(String), values : Enumerable(_)) : Nil getv, 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)? qdata, ref_count : UInt32 ref_count, run_dispose : Nil run_dispose, set_data(key : String, data : Pointer(Void)?) : Nil set_data, set_property(property_name : String, value : _) : Nil set_property, steal_data(key : String) : Pointer(Void)? steal_data, steal_qdata(quark : UInt32) : Pointer(Void)? 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, 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

compat_control(what : UInt64, data : Pointer(Void)?) : 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

Constructor Detail

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

Returns a newly created GtkGesture that recognizes pan gestures.


def self.new #

Initialize a new GesturePan.


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

Class Method Detail

def self.g_type : UInt64 #

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


Instance Method Detail

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 #