mouseevents.java

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

import java.applet.Applet;
import java.awt.Graphics;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;

/**
 * MouseEvents 
 */
public class MouseEvents extends Applet  implements MouseListener, MouseMotionListener {

	String msg = "";
	int mouseX = 0, mouseY = 0; // coordinates of mouse 

	public void init() {
		addMouseListener(this);
		addMouseMotionListener(this);

	} 
	// Handle mouse clicked. 
	public void mouseClicked(MouseEvent me) {   // save coordinates  
		mouseX = 0;
		mouseY = 10;
		msg = "Mouse clicked.";
		repaint();
	} 
	// Handle mouse entered. 
	public void mouseEntered(MouseEvent me) {   // save coordinates  
		mouseX = 0;
		mouseY = 10;
		msg = "Mouse entered.";
		repaint();
	} 
	// Handle mouse exited. 
	public void mouseExited(MouseEvent me) {   // save coordinates  
		mouseX = 0;
		mouseY = 10;
		msg = "Mouse exited.";
		repaint();
	} 
	// Handle button pressed. 
	public void mousePressed(MouseEvent me) {   // save coordinates  
		mouseX = me.getX();
		mouseY = me.getY();
		msg = "Down";
		repaint();
	} 
	// Handle button released. 
	public void mouseReleased(MouseEvent me) {   // save coordinates  
		mouseX = me.getX();
		mouseY = me.getY();
		msg = "Up";
		repaint();
	} 
	// Handle mouse dragged. 
	public void mouseDragged(MouseEvent me) {   // save coordinates  
		mouseX = me.getX();
		mouseY = me.getY();
		msg = "*";
		showStatus("Dragging mouse at " + mouseX + ", " + mouseY);
		repaint();
	} 
	// Handle mouse moved. 
	public void mouseMoved(MouseEvent me) {   // show status 
		showStatus("Moving mouse at " + me.getX() + ", " + me.getY());
	} 
	// Display msg in applet window at current X,Y location. 
	public void paint(Graphics g) {   
		g.drawString(msg, mouseX, mouseY); 
	}

}