package jas2.util;

import javax.swing.*;
import javax.swing.border.*;
import java.awt.*;
import java.awt.event.*;
/**
 * A JPanel which has a checkbox embedded in its border. The contents of the panel
 * are automatically insensitized when the checkbox is turned off.
 */
public class CheckBoxBorderPanel extends JPanel implements ItemListener
{
	public CheckBoxBorderPanel(String title)
	{
		this(title,null,null);
	}
	public CheckBoxBorderPanel(String title, Border border)
	{
		this(title,border,null);
	}
	public CheckBoxBorderPanel(String title, LayoutManager layout)
	{
		this(title,null,layout);
	}
	public CheckBoxBorderPanel(String title, Border border, LayoutManager layout)
	{
		if (layout == null) layout = new FlowLayout();
		if (border == null) border = BorderFactory.createEtchedBorder();
		
		checkbox = new JCheckBox(title);
		setLayout(layout);
		setBorder(border);
		add(checkbox,0);
		checkbox.addItemListener(this);
	}
	public void doLayout()
	{
		setEnabled();
		checkbox.setVisible(false);
		super.doLayout();
		checkbox.setVisible(true);
		Dimension size = checkbox.getPreferredSize();
		checkbox.setSize(size);
		checkbox.setLocation(20,0);
	}
	public void itemStateChanged(ItemEvent e)
	{
		setEnabled();
	}
	private void setEnabled()
	{
		boolean set = checkbox.isSelected();
		Component[] children = getComponents();
		for (int i=0; i