Package org.gnome.gtk

Interface TextBuffer.InsertTextCallback

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.InsertTextCallback
extends FunctionPointer

Functional interface declaration of the InsertTextCallback callback.

See Also:

• run(org.gnome.gtk.TextIter, java.lang.String, int)

Method Summary

Modifier and Type	Method	Description
void	run(@Nullable TextIter location, String text, int len)	Emitted to insert text in a GtkTextBuffer.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment, int) method.
default void	upcall(MemorySegment sourceTextBuffer, MemorySegment location, MemorySegment text, int len)	The upcall method is called from native code.

Method Details

run

void run(@Nullable TextIter location,
 String text,
 int len)

Emitted to insert text in a GtkTextBuffer.

Insertion actually occurs in the default handler.

Note that if your handler runs before the default handler it must not invalidate the location iter (or has to revalidate it). The default signal handler revalidates it to point to the end of the inserted text.

See also: TextBuffer.insert(org.gnome.gtk.TextIter, java.lang.String, int), TextBuffer.insertRange(org.gnome.gtk.TextIter, org.gnome.gtk.TextIter, org.gnome.gtk.TextIter).

upcall

default void upcall(MemorySegment sourceTextBuffer,
 MemorySegment location,
 MemorySegment text,
 int len)

The upcall method is called from native code. The parameters are marshaled and run(org.gnome.gtk.TextIter, java.lang.String, int) is executed.

toCallback

default MemorySegment toCallback(Arena arena)

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

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the arena in which the function pointer is allocated

Returns:

the native function pointer