booleancomparablesupport.java

PIY(Program It Yourself)是一个基于Java的应用程序开发环境

package piy.support;

import piy.*;
import java.awt.event.*;
import java.awt.*;
import javax.swing.*;

/**
* Simple class that delegates responsibility to the BooleanExpressionEditor.
* @author David Vivash
* @version 1.0, 30/04/01
*/
public class BooleanComparableSupport extends ClassSupport implements ActionListener {
	private JFrame editor = null;
	
	public BooleanComparableSupport(Property property) {
		super(property);
			
		setLayout(new BorderLayout());

		JButton button = new JButton("Edit");
		button.addActionListener(this);	

		add(button, BorderLayout.CENTER);

		BooleanComparable ex = (BooleanComparable)property.getValue();
		if (ex == null) property.setValue(new NullComparator());
		
		ex = (BooleanComparable)property.getValue();		

		editor = new BooleanExpressionEditor(ex, property);
	}

	public static Class getSupportedClass() { return BooleanComparable.class; }

	public void actionPerformed(ActionEvent e) {
		editor.show();
	}


	public Dimension getMinimumSize()	{ return new Dimension(10, 20); }
	public Dimension getPreferredSize()	{ return new Dimension(100, 20); }
	public Dimension getMaximumSize()	{ return new Dimension(10000, 20); }

}