///////    ClipToFile.java    ///////

import java.applet.Applet;
import java.awt.*;
import java.io.*;
import java.awt.event.*;
import java.awt.datatransfer.*;

/** Pastes from the system clipboard 
    to a TextArea, allows editing and saving
    to the end of an existing database file
 */

//  uses platform dependent line separator

public class ClipToFile extends Applet
{    public void init()
     {  sysClip = getToolkit().getSystemClipboard();
        Button pb = new Button(" Paste ");
        Button sv = new Button(" Save ");
	receiver = new TextArea(10, 70);
	add(receiver);
	add(pb); add(sv);
        filename = getParameter("FILENAME");
	StringWriter str = new StringWriter();
	BufferedWriter w = new BufferedWriter(str);
        try { w.newLine(); w.flush(); } catch ( IOException e) { }
	endl = str.toString();     // platform line separator
        System.out.println("length = " + endl.length() );
	pb.addActionListener(new PasteHandler());
	sv.addActionListener(new SaveHandler());
     }

     private final class PasteHandler implements ActionListener
     {     
           public void actionPerformed(ActionEvent ev)
           {  Transferable content = sysClip.getContents(this);
	      if ( content != null &&
	           content.isDataFlavorSupported(DataFlavor.stringFlavor) )

	      {  try
	         {  String s =(String) content.getTransferData
		                 (DataFlavor.stringFlavor);
		    receiver.append(s + endl);

		 }  catch ( IOException e )
		    {   e.printStackTrace();  }
		    catch ( UnsupportedFlavorException e )
		    { }
              }
           }
     }

     private final class SaveHandler implements ActionListener
     {  public void actionPerformed(ActionEvent ev)
        {   try
            {   PrintWriter out = new PrintWriter
                   (new BufferedWriter(new FileWriter(filename, true)));
                out.print(receiver.getText());
                out.close();
            }  catch ( IOException e)
               { System.err.println("Save Failed: " + e.getMessage());
               }
        }
     }

     protected String endl;
     protected String filename;
     protected TextArea receiver;
     protected Clipboard sysClip;
}