package lianliankan;

import java.awt.Color;
import java.awt.Cursor;
import java.awt.Image;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.net.URL;
import java.net.URLClassLoader;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.event.HyperlinkEvent;
import javax.swing.event.HyperlinkListener;
import javax.swing.text.html.HTMLDocument;
import javax.swing.text.html.HTMLFrameHyperlinkEvent;

public class HelpDialog extends JDialog implements HyperlinkListener {
	JButton close = new JButton("close");
	JEditorPane HelpPane = new JEditorPane();
	JScrollPane ScrollPane = new JScrollPane();
	HelpDialog(JFrame parent,String title){
   	 super(parent,title,true);
   	 setSize(400,320);
   	 
   	 URLClassLoader urlLoader = (URLClassLoader)this.getClass().getClassLoader();
     URL url = urlLoader.findResource("images/cursor.gif");
     Image animateImage = new ImageIcon(url).getImage();
     Cursor cursor = Toolkit.getDefaultToolkit().createCustomCursor(
        animateImage, new Point(0, 0), "cursor");
     this.setCursor(cursor);
     
   	 JPanel panel = new JPanel();
   	 panel.setLayout(null);
   	 setContentPane(panel);
   	 panel.setBackground(Color.WHITE);
   	 close.setBackground(Color.WHITE);
   	 ScrollPane.setHorizontalScrollBarPolicy(JScrollPane.
            HORIZONTAL_SCROLLBAR_NEVER);
     ScrollPane.setVerticalScrollBarPolicy(JScrollPane.
          VERTICAL_SCROLLBAR_AS_NEEDED);
	 close.setBounds(new Rectangle(160,245,70,30));
	 panel.add(close);
	 ScrollPane.setBounds(new Rectangle(0,0,390,240));
	 panel.add(ScrollPane);
	 HelpPane.setBounds(new Rectangle(0,0,370,240));
	 panel.add(HelpPane);
	 HelpPane.setEditable(false);
	 ScrollPane.getViewport().add(HelpPane);
	 HelpPane.setCursor(cursor);
	 ScrollPane.setCursor(cursor);
	 URLClassLoader urlLoader1 = (URLClassLoader)this.getClass().getClassLoader();
	    URL url1 = null;
	    url1 = urlLoader1.findResource("doc/help.htm");
	    try {
			HelpPane.setPage(url1);
		} catch (IOException e) {
			e.printStackTrace();
		}
		HelpPane.addHyperlinkListener(this);
	 close.addActionListener(new ActionListener(){
		public void actionPerformed(ActionEvent arg0) {
			dispose();
		}
	 });
}
	  public void hyperlinkUpdate(HyperlinkEvent e) {
		    if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
		      JEditorPane pane = (JEditorPane) e.getSource();
		      if (e instanceof HTMLFrameHyperlinkEvent) {
		        HTMLFrameHyperlinkEvent evt = (HTMLFrameHyperlinkEvent) e;
		        HTMLDocument doc = (HTMLDocument) pane.getDocument();
		        doc.processHTMLFrameHyperlinkEvent(evt);
		      }
		      else {
		        try {
		          pane.setPage(e.getURL());
		        }
		        catch (Throwable t) {
		          t.printStackTrace();
		        }
		      }
		    }
		  }
}