LoadSync.java Source code

Introduction

Here is the source code for LoadSync.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.event.ActionEvent;
import java.io.FileReader;
import java.io.IOException;

import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.JButton;
import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.text.JTextComponent;
import javax.swing.text.html.HTMLDocument;
import javax.swing.text.html.HTMLEditorKit;
import javax.swing.text.html.parser.ParserDelegator;

public class LoadSync {

    public static void main(String args[]) {
        final String filename = "Test.html";
        JFrame frame = new JFrame("Loading/Saving Example");
        Container content = frame.getContentPane();

        final JEditorPane editorPane = new JEditorPane();
        editorPane.setEditable(false);
        JScrollPane scrollPane = new JScrollPane(editorPane);
        content.add(scrollPane, BorderLayout.CENTER);

        editorPane.setEditorKit(new HTMLEditorKit());

        JPanel panel = new JPanel();

        // Setup actions
        Action loadAction = new AbstractAction() {
            {
                putValue(Action.NAME, "Load");
            }

            public void actionPerformed(ActionEvent e) {
                doLoadCommand(editorPane, filename);
            }
        };
        JButton loadButton = new JButton(loadAction);
        panel.add(loadButton);

        content.add(panel, BorderLayout.SOUTH);

        frame.setSize(250, 150);
        frame.setVisible(true);
    }

    public static void doLoadCommand(JTextComponent textComponent, String filename) {
        FileReader reader = null;
        try {
            System.out.println("Loading");
            reader = new FileReader(filename);

            // Create empty HTMLDocument to read into
            HTMLEditorKit htmlKit = new HTMLEditorKit();
            HTMLDocument htmlDoc = (HTMLDocument) htmlKit.createDefaultDocument();
            // Create parser (javax.swing.text.html.parser.ParserDelegator)
            HTMLEditorKit.Parser parser = new ParserDelegator();
            // Get parser callback from document
            HTMLEditorKit.ParserCallback callback = htmlDoc.getReader(0);
            // Load it (true means to ignore character set)
            parser.parse(reader, callback, true);
            // Replace document
            textComponent.setDocument(htmlDoc);
            System.out.println("Loaded");

        } catch (IOException exception) {
            System.out.println("Load oops");
            exception.printStackTrace();
        } finally {
            if (reader != null) {
                try {
                    reader.close();
                } catch (IOException ignoredException) {
                }
            }
        }
    }
}