UseActions.java Source code

Introduction

Here is the source code for UseActions.java

Source

/*
Definitive Guide to Swing for Java 2, Second Edition
By John Zukowski       
ISBN: 1-893115-78-X
Publisher: APress
*/

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Dimension;

import javax.swing.Action;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;
import javax.swing.JTextArea;
import javax.swing.text.DefaultEditorKit;

public class UseActions {
    public static void main(String args[]) {
        JFrame frame = new JFrame("Use TextAction");
        Container contentPane = frame.getContentPane();
        Dimension empty = new Dimension(0, 0);

        final JTextArea leftArea = new JTextArea();
        JScrollPane leftScrollPane = new JScrollPane(leftArea);
        leftScrollPane.setPreferredSize(empty);

        final JTextArea rightArea = new JTextArea();
        JScrollPane rightScrollPane = new JScrollPane(rightArea);
        rightScrollPane.setPreferredSize(empty);

        JSplitPane splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, leftScrollPane, rightScrollPane);

        JMenuBar menuBar = new JMenuBar();
        frame.setJMenuBar(menuBar);
        JMenu menu = new JMenu("Options");
        menuBar.add(menu);
        JMenuItem menuItem;

        Action readAction = leftArea.getActionMap().get(DefaultEditorKit.readOnlyAction);
        menuItem = menu.add(readAction);
        menuItem.setText("Make read-only");
        Action writeAction = leftArea.getActionMap().get(DefaultEditorKit.writableAction);
        menuItem = menu.add(writeAction);
        menuItem.setText("Make writable");

        menu.addSeparator();

        Action cutAction = leftArea.getActionMap().get(DefaultEditorKit.cutAction);
        menuItem = menu.add(cutAction);
        menuItem.setText("Cut");
        Action copyAction = leftArea.getActionMap().get(DefaultEditorKit.copyAction);
        menuItem = menu.add(copyAction);
        menuItem.setText("Copy");
        Action pasteAction = leftArea.getActionMap().get(DefaultEditorKit.pasteAction);
        menuItem = menu.add(pasteAction);
        menuItem.setText("Paste");

        contentPane.add(splitPane, BorderLayout.CENTER);
        frame.setSize(400, 250);
        frame.setVisible(true);
        splitPane.setDividerLocation(.5);
    }
}