// HTMLParser Library $Name: v1_6_20060319 $ - A java-based parser for HTML
// http://sourceforge.org/projects/htmlparser
// Copyright (C) 2004 Derrick Oswald
//
// Revision Control Information
//
// $Source: /cvsroot/htmlparser/htmlparser/src/org/htmlparser/beans/HTMLLinkBean.java,v $
// $Author: derrickoswald $
// $Date: 2005/05/15 11:49:03 $
// $Revision: 1.23 $
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
package org.htmlparser.beans;
import java.awt.Dimension;
import java.awt.FontMetrics;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.io.Serializable;
import java.net.URL;
import java.net.URLConnection;
import javax.swing.JList;
/**
* Display the links from a URL.
* @author Derrick Oswald
* Created on December 24, 2002, 3:49 PM
*/
public class HTMLLinkBean
extends
JList
implements
Serializable,
PropertyChangeListener
{
/**
* The underlying bean that provides our htmlparser specific properties.
*/
protected LinkBean mBean;
/**
* Creates a new HTMLTextBean.
* This uses an underlying StringBean and displays the text.
*/
public HTMLLinkBean ()
{
getBean ().addPropertyChangeListener (this);
}
/**
* Return the underlying bean object.
* Creates a new one if it hasn't been initialized yet.
* @return The StringBean this bean uses to fetch text.
*/
protected LinkBean getBean ()
{
if (null == mBean)
mBean = new LinkBean ();
return (mBean);
}
/**
* Return the minimum dimension for this visible bean.
* @return a minimum bounding box for this bean.
*/
public Dimension getMinimumSize ()
{
FontMetrics met;
int width;
int height;
met = getFontMetrics (getFont ());
width = met.stringWidth ("http://localhost");
height = met.getLeading () + met.getHeight () + met.getDescent ();
return (new Dimension (width, height));
}
/**
* Add a PropertyChangeListener to the listener list.
* The listener is registered for all properties.
* <p><em>Delegates to the underlying StringBean</em>
* @param listener The PropertyChangeListener to be added.
*/
public void addPropertyChangeListener (PropertyChangeListener listener)
{
super.addPropertyChangeListener (listener);
getBean ().addPropertyChangeListener (listener);
}
/**
* Remove a PropertyChangeListener from the listener list.
* This removes a registered PropertyChangeListener.
* <p><em>Delegates to the underlying StringBean</em>
* @param listener The PropertyChangeListener to be removed.
*/
public void removePropertyChangeListener (PropertyChangeListener listener)
{
super.addPropertyChangeListener (listener);
getBean ().removePropertyChangeListener (listener);
}
//
// Properties
//
/**
* Getter for property links.
* <p><em>Delegates to the underlying StringBean</em>
* @return Value of property links.
*/
public URL[] getLinks ()
{
return (getBean ().getLinks ());
}
/**
* Getter for property URL.
* <p><em>Delegates to the underlying StringBean</em>
* @return Value of property URL.
*/
public String getURL ()
{
return (getBean ().getURL ());
}
/**
* Setter for property URL.
* <p><em>Delegates to the underlying StringBean</em>
* @param url New value of property URL.
*/
public void setURL (String url)
{
getBean ().setURL (url);
}
/**
* Getter for property Connection.
* @return Value of property Connection.
*/
public URLConnection getConnection ()
{
return (getBean ().getConnection ());
}
/**
* Setter for property Connection.
* @param connection New value of property Connection.
*/
public void setConnection (URLConnection connection)
{
getBean ().setConnection (connection);
}
//
// PropertyChangeListener inteface
//
/**
* Responds to changes in the underlying bean's properties.
* @param event The event triggering this listener method call.
*/
public void propertyChange (PropertyChangeEvent event)
{
if (event.getPropertyName ().equals (LinkBean.PROP_LINKS_PROPERTY))
{
setListData (getBean ().getLinks ());
}
}
// /**
// * Unit test.
// */
// public static void main (String[] args)
// {
// HTMLLinkBean lb = new HTMLLinkBean ();
// lb.setURL ("http://cbc.ca");
// javax.swing.JFrame frame = new javax.swing.JFrame ();
// frame.getContentPane ().setLayout (new BorderLayout ());
// frame.getContentPane ().add (new JScrollPane (lb),
// BorderLayout.CENTER);
// frame.addWindowListener (new java.awt.event.WindowListener () {
// public void windowOpened (java.awt.event.WindowEvent e) {}
// public void windowClosing (java.awt.event.WindowEvent e)
// {
// System.exit (0);
// }
// public void windowClosed (java.awt.event.WindowEvent e) {}
// public void windowDeiconified (java.awt.event.WindowEvent e) {}
// public void windowIconified (java.awt.event.WindowEvent e) {}
// public void windowActivated (java.awt.event.WindowEvent e) {}
// public void windowDeactivated (java.awt.event.WindowEvent e) {}
// });
// frame.setBounds (100, 100, 640, 480);
// frame.show ();
// }
}