Class GestureRotate

java.lang.Object

org.javagi.base.ProxyInstance

org.gnome.gobject.TypeInstance

org.gnome.gobject.GObject

org.gnome.gtk.EventController

org.gnome.gtk.Gesture

org.gnome.gtk.GestureRotate

All Implemented Interfaces:

Proxy

@Generated("org.javagi.JavaGI")
public class GestureRotate
extends Gesture

Recognizes 2-finger rotation gestures.

Whenever the angle between both handled sequences changes, the Gtk.GestureRotate::angle-changed signal is emitted.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	GestureRotate.AngleChangedCallback	Functional interface declaration of the AngleChangedCallback callback.
static class	GestureRotate.Builder<B extends GestureRotate.Builder<B>>	Inner class implementing a builder pattern to construct a GObject with properties.
static class	GestureRotate.GestureRotateClass

Nested classes/interfaces inherited from class Gesture

Gesture.BeginCallback, Gesture.CancelCallback, Gesture.EndCallback, Gesture.Gesture$Impl, Gesture.GestureClass, Gesture.SequenceStateChangedCallback, Gesture.UpdateCallback

Nested classes/interfaces inherited from class EventController

EventController.EventController$Impl, EventController.EventControllerClass

Nested classes/interfaces inherited from class GObject

GObject.NotifyCallback, GObject.ObjectClass

Constructor Summary

Constructors

Constructor	Description
GestureRotate()	Create a new GestureRotate.
GestureRotate(MemorySegment address)	Create a GestureRotate instance for the provided memory address.

Method Summary

Modifier and Type	Method	Description
protected GestureRotate	asParent()	Return this instance as if it were its parent type.
static GestureRotate.Builder<? extends GestureRotate.Builder>	builder()	A GestureRotate.Builder object constructs a GestureRotate with the specified properties.
void	emitAngleChanged(double angle, double angleDelta)	Emits the "angle-changed" signal.
double	getAngleDelta()	Gets the angle delta in radians.
static MemoryLayout	getMemoryLayout()	The memory layout of the native struct.
static @Nullable Type	getType()	Get the GType of the GestureRotate class.
SignalConnection<GestureRotate.AngleChangedCallback>	onAngleChanged(GestureRotate.AngleChangedCallback handler)	Emitted when the angle between both tracked points changes.

Methods inherited from class Gesture

emitBegin, emitCancel, emitEnd, emitSequenceStateChanged, emitUpdate, getBoundingBox, getBoundingBoxCenter, getDevice, getGroup, getLastEvent, getLastUpdatedSequence, getPoint, getSequences, getSequenceState, group, handlesSequence, isActive, isGroupedWith, isRecognized, onBegin, onCancel, onEnd, onSequenceStateChanged, onUpdate, setSequenceState, setState, ungroup

Methods inherited from class EventController

getCurrentEvent, getCurrentEventDevice, getCurrentEventState, getCurrentEventTime, getName, getPropagationLimit, getPropagationPhase, getWidget, reset, setName, setPropagationLimit, setPropagationPhase, setStaticName

Methods inherited from class GObject

addToggleRef, addWeakPointer, bindProperty, bindProperty, bindProperty, bindPropertyFull, bindPropertyFull, bindPropertyWithClosures, bindPropertyWithClosures, compatControl, connect, connect, connect, constructed, disconnect, dispatchPropertiesChanged, dispose, dupData, dupQdata, emit, emitNotify, finalize_, forceFloating, freezeNotify, get, getData, getProperty, getProperty, getProperty, getQdata, getv, interfaceFindProperty, interfaceInstallProperty, interfaceListProperties, isFloating, newInstance, newInstance, newv, notify, notify, notifyByPspec, onNotify, ref, refSink, removeToggleRef, removeWeakPointer, replaceData, replaceQdata, runDispose, set, setData, setDataFull, setProperty, setProperty, setProperty, setQdata, setQdataFull, setv, stealData, stealQdata, takeRef, thawNotify, unref, watchClosure, weakRef, weakUnref, withProperties

Methods inherited from class TypeInstance

callParent, callParent, cast, getPrivate, readGClass, writeGClass

Methods inherited from class ProxyInstance

equals, handle, hashCode

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Details

GestureRotate

public GestureRotate(MemorySegment address)

Create a GestureRotate instance for the provided memory address.

Parameters:

address - the memory address of the native object

GestureRotate

public GestureRotate()

Create a new GestureRotate.

Method Details

getType

public static @Nullable Type getType()

Get the GType of the GestureRotate class.

Returns:

the GType

getMemoryLayout

public static MemoryLayout getMemoryLayout()

The memory layout of the native struct.

Returns:

the memory layout

asParent

protected GestureRotate asParent()

Return this instance as if it were its parent type. Comparable to the Java super keyword, but ensures the parent typeclass is also used in native code.

Overrides:

asParent in class Gesture

Returns:

the instance as if it were its parent type

getAngleDelta

public double getAngleDelta()

Gets the angle delta in radians.

If this GestureRotate is active, this function returns the angle difference in radians since the gesture was first recognized. If this GestureRotate is not active, 0 is returned.

Returns:

the angle delta in radians

onAngleChanged

public SignalConnection<GestureRotate.AngleChangedCallback> onAngleChanged(GestureRotate.AngleChangedCallback handler)

Emitted when the angle between both tracked points changes.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• GestureRotate.AngleChangedCallback.run(double, double)

emitAngleChanged

public void emitAngleChanged(double angle,
 double angleDelta)

Emits the "angle-changed" signal. See onAngleChanged(GestureRotate.AngleChangedCallback).

builder

public static GestureRotate.Builder<? extends GestureRotate.Builder> builder()

A GestureRotate.Builder object constructs a GestureRotate with the specified properties. Use the various set...() methods to set properties, and finish construction with GestureRotate.Builder.build().

Returns:

the builder object