Package org.gnome.gtk

Interface TreeListModelCreateModelFunc

All Superinterfaces:

FunctionPointer

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
@Generated("io.github.jwharm.JavaGI")
public interface TreeListModelCreateModelFunc
extends FunctionPointer

Functional interface declaration of the TreeListModelCreateModelFunc callback.

See Also:

• run(org.gnome.gobject.GObject)

Method Summary

Modifier and Type	Method	Description
ListModel	run(GObject item)	Prototype of the function called to create new child models when gtk_tree_list_row_set_expanded() is called.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment) method.
default MemorySegment	upcall(MemorySegment item, MemorySegment userData)	The upcall method is called from native code.

Method Details

run

ListModel run(GObject item)

Prototype of the function called to create new child models when gtk_tree_list_row_set_expanded() is called.

This function can return null to indicate that item is guaranteed to be a leaf node and will never have children. If it does not have children but may get children later, it should return an empty model that is filled once children arrive.

upcall

default MemorySegment upcall(MemorySegment item,
 MemorySegment userData)

The upcall method is called from native code. The parameters are marshaled and run(org.gnome.gobject.GObject) is executed.

toCallback

default MemorySegment toCallback(Arena arena)

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

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the function pointer will be allocated in this arena

Returns:

the native function pointer