?? htmllinkbean.java
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// HTMLParser Library $Name: v1_6_20051112 $ - 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 ();// }}
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