Package org.gnome.gtk

Interface TreeSelectionFunc

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 TreeSelectionFunc
extends FunctionPointer

Functional interface declaration of the TreeSelectionFunc callback.

See Also:

• run(org.gnome.gtk.TreeSelection, org.gnome.gtk.TreeModel, org.gnome.gtk.TreePath, boolean)

Method Summary

Modifier and Type	Method	Description
boolean	run(TreeSelection selection, TreeModel model, TreePath path, boolean pathCurrentlySelected)	A function used by gtk_tree_selection_set_select_function() to filter whether or not a row may be selected.
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, java.lang.foreign.MemorySegment) method.
default int	upcall(MemorySegment selection, MemorySegment model, MemorySegment path, int pathCurrentlySelected, MemorySegment data)	The upcall method is called from native code.

Method Details

run

boolean run(TreeSelection selection,
 TreeModel model,
 TreePath path,
 boolean pathCurrentlySelected)

A function used by gtk_tree_selection_set_select_function() to filter whether or not a row may be selected. It is called whenever a row's state might change.

A return value of true indicates to selection that it is okay to change the selection.

upcall

default int upcall(MemorySegment selection,
 MemorySegment model,
 MemorySegment path,
 int pathCurrentlySelected,
 MemorySegment data)

The upcall method is called from native code. The parameters are marshaled and run(org.gnome.gtk.TreeSelection, org.gnome.gtk.TreeModel, org.gnome.gtk.TreePath, boolean) 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, 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