Interface TextBuffer.DeleteRangeCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

TextBuffer

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 TextBuffer.DeleteRangeCallback
extends FunctionPointer

Functional interface declaration of the DeleteRangeCallback callback.

See Also:

• run(TextIter, TextIter)

Method Summary

Modifier and Type	Method	Description
void	run(@Nullable TextIter start, @Nullable TextIter end)	Emitted to delete a range from a GtkTextBuffer.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(MemorySegment, MemorySegment, MemorySegment) method.
default void	upcall(MemorySegment sourceTextBuffer, MemorySegment start, MemorySegment end)	The upcall method is called from native code.

Method Details

run

void run(@Nullable TextIter start,
 @Nullable TextIter end)

Emitted to delete a range from a GtkTextBuffer.

Note that if your handler runs before the default handler it must not invalidate the start and end iters (or has to revalidate them). The default signal handler revalidates the start and end iters to both point to the location where text was deleted. Handlers which run after the default handler (see g_signal_connect_after()) do not have access to the deleted text.

See also: TextBuffer.delete(TextIter, TextIter).

upcall

default void upcall(MemorySegment sourceTextBuffer,
 MemorySegment start,
 MemorySegment end)

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

toCallback

default MemorySegment toCallback(Arena arena)

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

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the arena in which the function pointer is allocated

Returns:

the native function pointer