Package org.gnome.gtk

Interface GestureSwipe.SwipeCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

GestureSwipe

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public static interface GestureSwipe.SwipeCallback
extends FunctionPointer

Functional interface declaration of the SwipeCallback callback.

See Also:

• run(double, double)

Method Summary

Modifier and Type	Method	Description
void	run(double velocityX, double velocityY)	Emitted when the recognized gesture is finished.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, double, double) method.
default void	upcall(MemorySegment sourceGestureSwipe, double velocityX, double velocityY)	The upcall method is called from native code.

Method Details

run

void run(double velocityX,
 double velocityY)

Emitted when the recognized gesture is finished.

Velocity and direction are a product of previously recorded events.

upcall

default void upcall(MemorySegment sourceGestureSwipe,
 double velocityX,
 double velocityY)

The upcall method is called from native code. The parameters are marshaled and run(double, double) is executed.

toCallback

default MemorySegment toCallback(Arena arena)

Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, double, double) method.

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the function pointer will be allocated in this arena

Returns:

the native function pointer