Package net.neoforged.neoforge.client.gui

Class ConfigurationScreen.UndoManager

java.lang.Object

net.neoforged.neoforge.client.gui.ConfigurationScreen.UndoManager

Enclosing class:

ConfigurationScreen

public static final class ConfigurationScreen.UndoManager
extends Object

A class representing an undo/redo buffer.

Every undo step is represented as 2 actions, one to initially execute when the step is added and to redo after an undo, and one to execute to undo the step. Both get a captured parameter to make defining them inline or reusing the code portion easier.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final record	ConfigurationScreen.UndoManager.Step<T>

Field Summary

Fields

Modifier and Type	Field	Description
private final List<ConfigurationScreen.UndoManager.Step<?>>	redos
private final List<ConfigurationScreen.UndoManager.Step<?>>	undos

Constructor Summary

Constructors

Constructor	Description
UndoManager()

Method Summary

Modifier and Type	Method	Description
<T> void	add(Consumer<T> run, T newValue, Consumer<T> undo, T oldValue)
void	add(List<ConfigurationScreen.UndoManager.Step<?>> steps)
void	add(ConfigurationScreen.UndoManager.Step<?>... steps)
private void	add(ConfigurationScreen.UndoManager.Step<?> step, boolean execute)
<T> void	addNoExecute(Consumer<T> run, T newValue, Consumer<T> undo, T oldValue)
boolean	canRedo()
boolean	canUndo()
void	redo()
<T> ConfigurationScreen.UndoManager.Step<T>	step(Consumer<T> run, T newValue, Consumer<T> undo, T oldValue)
void	undo()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

undos

private final List<ConfigurationScreen.UndoManager.Step<?>> undos

redos

private final List<ConfigurationScreen.UndoManager.Step<?>> redos

Constructor Details

UndoManager

public UndoManager()

Method Details

undo

public void undo()

redo

public void redo()

add

private void add(ConfigurationScreen.UndoManager.Step<?> step,
 boolean execute)

step

public <T> ConfigurationScreen.UndoManager.Step<T> step(Consumer<T> run,
 T newValue,
 Consumer<T> undo,
 T oldValue)

add

public <T> void add(Consumer<T> run,
 T newValue,
 Consumer<T> undo,
 T oldValue)

addNoExecute

public <T> void addNoExecute(Consumer<T> run,
 T newValue,
 Consumer<T> undo,
 T oldValue)

add

public void add(ConfigurationScreen.UndoManager.Step<?>... steps)

add

public void add(List<ConfigurationScreen.UndoManager.Step<?>> steps)

canUndo

public boolean canUndo()

canRedo

public boolean canRedo()