adapterdemo.java

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/*
 * $Header$
 * $Date$ 
 * $Revision$
 * Copyright (C) 2003-2004 CIC, Tsinghua Univ. 
 */
package jcase.gui;

import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionAdapter;
import java.awt.TextField;
/**
 * AdapterDemo 
 */
public class AdapterDemo extends BaseDemo {
	TextField status;
	/**
	 * @see jcase.gui.BaseDemo#init()
	 */
	protected void init() {
		status = new TextField(30);
		status.setEditable(false);
		add(status);
		addMouseListener(new MyMouseAdapter(this));
		addMouseMotionListener(new MyMouseMotionAdapter(this));
	}
	/**
	 * @see jcase.gui.BaseDemo#getTitle()
	 */
	public String getTitle() {		
		return "事件适配器演示";
	}
	public void showStatus(String message){
		status.setText(message);
	}
}

class MyMouseAdapter extends MouseAdapter {
	AdapterDemo adapterDemo;

	public MyMouseAdapter(AdapterDemo adapterDemo) {

		this.adapterDemo = adapterDemo;
	}

	// Handle mouse clicked. 
	public void mouseClicked(MouseEvent me) {
		adapterDemo.showStatus("Mouse clicked");
	}
}

class MyMouseMotionAdapter extends MouseMotionAdapter {
	AdapterDemo adapterDemo;

	public MyMouseMotionAdapter(AdapterDemo adapterDemo) {

		this.adapterDemo = adapterDemo;
	}

	// Handle mouse dragged. 
	public void mouseDragged(MouseEvent me) {
		adapterDemo.showStatus("Mouse dragged");
	}
}