Package org.gnome.gtk

Interface TreeCellDataFunc

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 TreeCellDataFunc
extends FunctionPointer

Functional interface declaration of the TreeCellDataFunc callback.

See Also:

• run(org.gnome.gtk.TreeViewColumn, org.gnome.gtk.CellRenderer, org.gnome.gtk.TreeModel, org.gnome.gtk.TreeIter)

Method Summary

Modifier and Type	Method	Description
void	run(TreeViewColumn treeColumn, CellRenderer cell, TreeModel treeModel, TreeIter iter)	A function to set the properties of a cell instead of just using the straight mapping between the cell and the model.
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, java.lang.foreign.MemorySegment, java.lang.foreign.MemorySegment) method.
default void	upcall(MemorySegment treeColumn, MemorySegment cell, MemorySegment treeModel, MemorySegment iter, MemorySegment data)	The upcall method is called from native code.

Method Details

run

void run(TreeViewColumn treeColumn,
 CellRenderer cell,
 TreeModel treeModel,
 TreeIter iter)

A function to set the properties of a cell instead of just using the straight mapping between the cell and the model.

This function is useful for customizing the cell renderer. For example, a function might get an* integer from the treeModel, and render it to the “text” attribute of “cell” by converting it to its written equivalent.

See also: gtk_tree_view_column_set_cell_data_func()

upcall

default void upcall(MemorySegment treeColumn,
 MemorySegment cell,
 MemorySegment treeModel,
 MemorySegment iter,
 MemorySegment data)

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