yaundo

Yet another undo system implementation for java applications. This can be very useful when creating e.g. an editor using JavaFX.

This library provides one default implementation of the IUndoSystem interface, the StackUndoSystem which provides the "normal" behavior that most undo systems have.

Usage

First, you need to add the library to your project:

// Add mavenCentral to your repositories
repositories {
    mavenCentral();
}

// Add the library (NOTE: Check the latest version on github)
depdendencies {
    implementation group: 'dk.yalibs', name: 'yaundo', version: '1.0.0';
}

Then use it in your application:

var element = new ArrayList<Integer>();
IUndoSystem undosystem = new StackUndoSystem();
// Do the action
element.add(1);
// Add the undoable action
undosystem.push(new Undoable("add 1", () -> element.remove(0), () -> element.add(1)));
// Undo the action
undosystem.undo();
// Redo the action
undosystem.redo();