Interface TextView.DeleteFromCursorCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

TextView

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 TextView.DeleteFromCursorCallback
extends FunctionPointer

Functional interface declaration of the DeleteFromCursorCallback callback.

See Also:

• run(DeleteType, int)

Method Summary

Modifier and Type	Method	Description
void	run(DeleteType type, int count)	Gets emitted when the user initiates a text deletion.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(MemorySegment, int, int) method.
default void	upcall(MemorySegment sourceTextView, int type, int count)	The upcall method is called from native code.

Method Details

run

void run(DeleteType type,
 int count)

Gets emitted when the user initiates a text deletion.

The ::delete-from-cursor signal is a keybinding signal.

If the type is DeleteType.CHARS, GTK deletes the selection if there is one, otherwise it deletes the requested number of characters.

The default bindings for this signal are Delete for deleting a character, Ctrl+Delete for deleting a word and Ctrl+Backspace for deleting a word backwards.

upcall

default void upcall(MemorySegment sourceTextView,
 int type,
 int count)

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