Interface SelectionModel.SelectionChangedCallback

All Superinterfaces:

FunctionPointer

Enclosing interface:

SelectionModel<T extends GObject>

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 SelectionModel.SelectionChangedCallback
extends FunctionPointer

Functional interface declaration of the SelectionChangedCallback callback.

See Also:

• run(int, int)

Method Summary

Modifier and Type	Method	Description
void	run(int position, int nItems)	Emitted when the selection state of some of the items in model changes.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(MemorySegment, int, int) method.
default void	upcall(MemorySegment sourceSelectionModel, int position, int nItems)	The upcall method is called from native code.

Method Details

run

void run(int position,
 int nItems)

Emitted when the selection state of some of the items in model changes.

Note that this signal does not specify the new selection state of the items, they need to be queried manually. It is also not necessary for a model to change the selection state of any of the items in the selection model, though it would be rather useless to emit such a signal.

upcall

default void upcall(MemorySegment sourceSelectionModel,
 int position,
 int nItems)

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

toCallback

default MemorySegment toCallback(Arena arena)

Creates a native function pointer to the upcall(MemorySegment, int, int) method.

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the arena in which the function pointer is allocated

Returns:

the native function pointer