Interface PixbufLoader.AreaUpdatedCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

PixbufLoader

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 PixbufLoader.AreaUpdatedCallback
extends FunctionPointer

Functional interface declaration of the AreaUpdatedCallback callback.

See Also:

• run(int, int, int, int)

Method Summary

Modifier and Type	Method	Description
void	run(int x, int y, int width, int height)	This signal is emitted when a significant area of the image being loaded has been updated.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(MemorySegment, int, int, int, int) method.
default void	upcall(MemorySegment sourcePixbufLoader, int x, int y, int width, int height)	The upcall method is called from native code.

Method Details

run

void run(int x,
 int y,
 int width,
 int height)

This signal is emitted when a significant area of the image being loaded has been updated.

Normally it means that a complete scanline has been read in, but it could be a different area as well.

Applications can use this signal to know when to repaint areas of an image that is being loaded.

upcall

default void upcall(MemorySegment sourcePixbufLoader,
 int x,
 int y,
 int width,
 int height)

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

toCallback

default MemorySegment toCallback(Arena arena)

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