Re: ctor: this.setLayout(

  To: comp.lang.java.gui
In article
<837888c7-b487-4b0c-8411-de54f9bc017a@h23g2000prf.googlegroups.com>,
 lbrtchx@gmail.com wrote:
[...]


[...]

<sscce>
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.Graphics;
import java.io.IOException;
import java.net.URL;
import javax.swing.BoxLayout;
import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.event.HyperlinkEvent;
import javax.swing.event.HyperlinkListener;
import javax.swing.text.Document;

/** @author John B. Matthews */
public class HtmlView extends JPanel implements HyperlinkListener {

    private static final String name = "http://www.example.com";
    private final JEditorPane jep;
    private final Document doc;

    public HtmlView() {
        UrlPane up = new UrlPane();

        jep = new JEditorPane();
        jep.setEditable(false);
        jep.addHyperlinkListener(this);
        loadPage(jep, name);
        doc = jep.getDocument();
        
        JPanel vPanel = new JPanel();
        vPanel.setLayout(new BoxLayout(vPanel, BoxLayout.Y_AXIS));
        vPanel.add(up);
        vPanel.add(jep);

        JScrollPane sp = new JScrollPane(vPanel);
        sp.setPreferredSize(new Dimension(800, 600));
        sp.getVerticalScrollBar().setUnitIncrement(16);
        this.add(sp);
    }

    private void loadPage(JEditorPane jep, String name) {
        try {
            jep.setPage(name);
        } catch (IOException ioe) {
            ioe.printStackTrace(System.err);
        }
    }

    public void hyperlinkUpdate(HyperlinkEvent e) {
        HyperlinkEvent.EventType type = e.getEventType();
        final URL url = e.getURL();
        if (type == HyperlinkEvent.EventType.ENTERED) {
            System.out.println("URL: " + url);
        } else if (type == HyperlinkEvent.EventType.ACTIVATED) {
            System.out.println("Following link...");
            try {
                jep.setPage(url);
            } catch (IOException ioException) {
                System.err.println("Invalid link");
                jep.setDocument(doc);
            }
        }
    }
    
    class UrlPane extends JPanel {
        private final Font font = new Font("Serif", Font.BOLD, 36);

        public UrlPane() {
            this.setBackground(Color.lightGray);
            this.setFont(font);
            this.add(new JLabel(name));
        }

        @Override
        protected void paintComponent(Graphics g) {
            super.paintComponent(g);
            g.setFont(font);
            g.drawString("\u2615", 5, this.getHeight());
        }
     }

    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                JFrame f = new JFrame();
                f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                f.add(new HtmlView(), BorderLayout.CENTER);
                f.pack();
                f.setVisible(true);
            }
        });
    }
}
</sscce>
--
John B. Matthews
trashgod at gmail dot com
http://home.roadrunner.com/~jbmatthews/

---
 * Synchronet * The Whitehouse BBS --- whitehouse.hulds.com --- check it out free usenet!
--- Synchronet 3.15a-Win32 NewsLink 1.92
Time Warp of the Future BBS - telnet://time.synchro.net:24