import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.FileReader;

import javax.swing.JButton;
import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.text.PlainDocument;

import org.bounce.text.ScrollableEditorPanel;

/**
 * Simple wrapper around JEditorPane to browse java text using the XMLEditorKit
 * plug-in.
 * 
 * java XmlKitTest filename
 */
public class XMLKitTest {
    private static JEditorPane editor = null;

    /**
     * Main method...
     * 
     * @param args
     */
    public static void main(String[] args) {
        if (args.length != 1) {
            System.err.println("need filename argument");
            System.exit( 1);
        }

        try {
            editor = new JEditorPane();
            
            // Instantiate a XMLEditorKit with wrapping enabled.
            XMLEditorKit kit = new XMLEditorKit(true);

            // Set the wrapping style.
            kit.setWrapStyleWord(true);
            
            editor.setEditorKit( kit);

            File file = new File(args[0]);
            editor.read(new FileReader(file), file);

            // Set the font style.
            editor.setFont(new Font("Courier", Font.PLAIN, 12));

            // Set the tab size
            editor.getDocument().putProperty(PlainDocument.tabSizeAttribute, 
                                              new Integer(4));

            // Enable auto indentation.
            editor.getDocument().putProperty(XMLDocument.AUTO_INDENTATION_ATTRIBUTE, 
                                              new Boolean(true));

            // Enable tag completion.
            editor.getDocument().putProperty(XMLDocument.TAG_COMPLETION_ATTRIBUTE, 
                                              new Boolean(true));
            
            // Initialise the folding
            editor.setFolding(true);
            
            // Set a style
            kit.setStyle(XMLStyleConstants.ATTRIBUTE_NAME, new Color(255, 0, 0), 
                          Font.BOLD);
            
            // Put the editor in a panel that will force it to resize, when a different 
            // view is choosen.
            ScrollableEditorPanel editorPanel = new ScrollableEditorPanel(editor);

            JScrollPane scroller = new JScrollPane( editorPanel);

            // Add the number margin as a Row Header View
            scroller.setRowHeaderView(new LineNumberMargin(editor));

            JFrame f = new JFrame( "XmlEditorKitTest: " + args[0]);
            f.getContentPane().setLayout(new BorderLayout());
            f.getContentPane().add( scroller, BorderLayout.CENTER);
            
            JButton button = new JButton( "Toggle Wrapping");
            button.addActionListener(new ActionListener() {
                public void actionPerformed( ActionEvent e) {
                    XMLEditorKit kit = (XMLEditorKit)editor.getEditorKit();
                    kit.setLineWrappingEnabled(!kit.isLineWrapping());
                    
                    // Update the UI and create a new view...
                    editor.updateUI();
                }
            });
            f.getContentPane().add(button, BorderLayout.SOUTH);
            f.setSize(600, 600);
            f.setVisible(true);
        } catch (Throwable e) {
            e.printStackTrace();
            System.exit( 1);
        }
    }
}