Package org.gnome.gtk

Interface TreeView.RowActivatedCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

TreeView

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 TreeView.RowActivatedCallback
extends FunctionPointer

Functional interface declaration of the RowActivatedCallback callback.

See Also:

• run(org.gnome.gtk.TreePath, org.gnome.gtk.TreeViewColumn)

Method Summary

Modifier and Type	Method	Description
void	run(TreePath path, @Nullable TreeViewColumn column)	The "row-activated" signal is emitted when the method TreeView.rowActivated(org.gnome.gtk.TreePath, org.gnome.gtk.TreeViewColumn) is called.
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) method.
default void	upcall(MemorySegment sourceTreeView, MemorySegment path, MemorySegment column)	The upcall method is called from native code.

Method Details

run

void run(TreePath path,
 @Nullable
 @Nullable TreeViewColumn column)

The "row-activated" signal is emitted when the method TreeView.rowActivated(org.gnome.gtk.TreePath, org.gnome.gtk.TreeViewColumn) is called.

This signal is emitted when the user double-clicks a treeview row with the Gtk.TreeView:activate-on-single-click property set to false, or when the user single-clicks a row when that property set to true.

This signal is also emitted when a non-editable row is selected and one of the keys: Space, Shift+Space, Return or Enter is pressed.

For selection handling refer to the tree widget conceptual overview as well as GtkTreeSelection.

upcall

default void upcall(MemorySegment sourceTreeView,
 MemorySegment path,
 MemorySegment column)

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

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the function pointer will be allocated in this arena

Returns:

the native function pointer