Interface PixbufLoader.SizePreparedCallback

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.SizePreparedCallback
extends FunctionPointer

Functional interface declaration of the SizePreparedCallback callback.

See Also:

• run(int, int)

Method Summary

Modifier and Type	Method	Description
void	run(int width, int height)	This signal is emitted when the pixbuf loader has been fed the initial amount of data that is required to figure out the size of the image that it will create.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(MemorySegment, int, int) method.
default void	upcall(MemorySegment sourcePixbufLoader, int width, int height)	The upcall method is called from native code.

Method Details

run

void run(int width,
 int height)

This signal is emitted when the pixbuf loader has been fed the initial amount of data that is required to figure out the size of the image that it will create.

Applications can call gdk_pixbuf_loader_set_size() in response to this signal to set the desired size to which the image should be scaled.

upcall

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

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