timezonepanel.java

本次实验中用Java实现的Calendar具有跨平台运行能力

package edu.swjtu.sist.java.calendar;

import java.awt.*;
import java.awt.event.*;
import java.net.URL;
import java.util.Calendar;

import javax.swing.JPanel;

/**
 * 时区显示类
 * 
 * @author [e-mail]
 * @version 1.0
 */


class TimeZonePanel extends JPanel
{
    protected int   index  = 0;                                                //时区图显示起始位置

    private URL imgURL=TimeZonePanel.class.getResource("timezone.gif");
    
    //private Image img = Toolkit.getDefaultToolkit().getImage(".\\image\\timezone.gif");
    private Image img = Toolkit.getDefaultToolkit().getImage(this.imgURL);
    
    public void paintComponent(Graphics g)
    {
        Graphics2D g2 = (Graphics2D) g;
        g2.setColor(getBackground());
        g2.fillRect(0, 0, 400, 300);

        g2.drawImage(img, 15, 40, 385, 219, index, 0, index + 370, 179, this);

    }
    public void reset(int i)// 重新显示时区图
    {
        index = i;
        repaint();
    }
}