Listen for undo and redo events : Redo Undo « Swing « Java Tutorial

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Java Tutorial » Swing » Redo Undo 
14. 113. 7. Listen for undo and redo events
public class Main{
public static void main(String[] argv){
    JTextComponent textcomp = new JTextArea();
    final UndoManager undo = new UndoManager();
    Document doc = textcomp.getDocument();
    
    doc.addUndoableEditListener(new UndoableEditListener() {
        public void undoableEditHappened(UndoableEditEvent evt) {
            undo.addEdit(evt.getEdit());
        }
    });    

    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.add(new JScrollPane(textcomp));
    frame.setSize(380320);
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);

}}
14. 113. Redo Undo
14. 113. 1. Undo EditorUndo Editor
14. 113. 2. Using the Undo Framework with Swing Text ComponentsUsing the Undo Framework with Swing Text Components
14. 113. 3. Undoable DrawingUndoable Drawing
14. 113. 4. Adding Undo and Redo to a Text Component
14. 113. 5. Bind the undo action to ctl-Z
14. 113. 6. Create a redo action and add it to the text component (JTextComponent)
14. 113. 7. Listen for undo and redo events
14. 113. 8. Create an undo action and add it to the text component
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