package jas2.swingstudio;

import jas2.util.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.io.*;
import javax.swing.*;
import javax.swing.filechooser.*;
import javax.swing.filechooser.FileFilter; // not java.io.FileFilter

public class MultiFilePanel extends JPanel
{
	public MultiFilePanel(FileFilter f, String description, String borderText,String key)
	{
		filter = f;
		this.description = description;
		this.borderText = borderText;
		this.key = key;
		this.fileList = new FileList();
		
		setLayout(new BorderLayout());
		ar = new FileAddRemovePanel(fileList, description, borderText);
		add(ar,BorderLayout.CENTER);
		
		clear = new JButton("Clear File Set");
		save = new JButton("Save File Set...");
		restore = new JButton("Restore File Set...");
		
		clear.addActionListener(ar);
		save.addActionListener(ar);
		restore.addActionListener(ar);
		
		JPanel p = new JPanel(new GridLayout(3,1));
		p.add(clear);
		p.add(save);
		p.add(restore);		
		add(p,BorderLayout.EAST);
	}
	public int getNFiles()
	{
		ar.update();
		return fileList.getSize();
	}
	public String getFilePath()
	{
		ar.update();
		StringBuffer path = new StringBuffer();
		Enumeration e = fileList.elements();
		while (e.hasMoreElements())
		{
			path.append(e.nextElement().toString());
			if (!e.hasMoreElements()) break;
			path.append(java.io.File.pathSeparatorChar);
		}
		return path.toString();
	}
	public void saveState()
	{
		ar.update();
		String[] files = new String[fileList.getSize()];
		Enumeration e = fileList.elements();
		for (int i=0; i