oztextarea.java

本书透彻讲解了经典的《设计模式：可复用面向对象软件的基础》一书涵盖的23种基本设计模式。本书将这些设计模式分成五类：接口型模式、责任型模式、构造型模式、操作型模式

package com.oozinoz.ui;

import java.awt.*;
import javax.swing.*;
import javax.swing.border.*;

/*
 * Copyright (c) 2001 Steven J. Metsker.
 * 
 * Steve Metsker makes no representations or warranties about
 * the fitness of this software for any particular purpose, 
 * including the implied warranty of merchantability.
 *
 * Please use this software as you wish with the sole
 * restriction that you may not claim that you wrote it.
 */
/**
 * This class acts as a prototypical text area that 
 * applications can clone to get a standard look and feel.
 * 
 * @author Steven J. Metsker
 */
public class OzTextArea extends JPanel 
{
	protected JTextArea textArea = new JTextArea(); 
	protected TitledBorder border; 
/**
 * Create a standard, prototypical text area. This constructor
 * places a Swing text area inside a scroll pane with a
 * standard border.
 */
public OzTextArea()
{
	setLayout(new BorderLayout());
	JScrollPane jsp = new JScrollPane(textArea);
	jsp.setBorder(
		BorderFactory.createCompoundBorder(
			BorderFactory.createRaisedBevelBorder(),
			BorderFactory.createEmptyBorder(5, 5, 5, 5)));
	add(jsp, "Center");
}
/**
 * Add the supplied text to this text area.
 *
 * @param String the text to append
 */
public void append(String text)
{
	textArea().append(text);
}
/**
 * Remove all the text from this text area.
 */
public void clear()
{
	textArea().setText("");
}
/**
 * Return a copy of a prototypical text area.
 *
 * @return a copy of a prototypical text area
 */
public Object clone()
{
	OzTextArea ta = new OzTextArea();
	ta.setFont(textArea().getFont());
	ta.setCursor(getCursor());
	return ta;
}
/**
 * Insert the method's description here.
 * Creation date: (12/18/2000 6:56:36 AM)
 */
public void setFont(Font font)
{
	textArea().setFont(font);
}
/** 
 */
protected JTextArea textArea()
{
	if (textArea == null)
	{
		textArea = new JTextArea();
		textArea.setMargin(new Insets(20, 20, 20, 20));
	}
	return textArea;
}
}