mainclosingaction.java

学生管理系统

package edu.sm.view.event;

import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.Dialog;
import java.awt.FlowLayout;
import java.awt.Frame;
import java.awt.Label;
import java.awt.Panel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

/**
 * 主窗口退出的调用
 * @author wy
 *
 */
public class MainClosingAction extends WindowAdapter {
	/**
	 * 是否是主程序关闭
	 */
	private boolean flag;
	
	/**
	 * 提示信息
	 */
	private Dialog exit;
	
	/**
	 * 确认和取消按钮
	 */
	private Panel panel;
	
	/**
	 * 提示信息文字
	 */
	private Label label;
	
	/**
	 * 确认
	 */
	private Button sure;
	
	/**
	 * 取消
	 */
	private Button cancel;
	
	/**
	 * 标题信息
	 */
	private String title;
	
	/**
	 * 提示信息
	 */
	private String message;
	
	private Frame parent;
	
	public MainClosingAction(String title,String message,boolean flag) {
		this.title = title;
		this.message = message;
		this.flag = flag;
	}
	
	public MainClosingAction(String title,String message,boolean flag,Frame parent) {
		this(title,message,flag);
		this.parent = parent;
	}
	
	@Override
	public void windowClosing(WindowEvent e) {
		exit = new Dialog((Frame)e.getSource(),title,true);
		panel = new Panel();
		panel.setLayout(new FlowLayout(FlowLayout.CENTER));
		label = new Label(message,Label.CENTER);
		sure = new Button("确定");
		cancel = new Button("取消");
		
		if(flag) {
			sure.addActionListener(new ActionListener(){
				@Override
				public void actionPerformed(ActionEvent e) {
					System.exit(0);
				}
			});
		} else {
			sure.addActionListener(new ActionListener(){
				@Override
				public void actionPerformed(ActionEvent e) {
					exit.dispose();
					parent.dispose();
				}
			});
		}
		
		
		cancel.addActionListener(new ActionListener(){
			@Override
			public void actionPerformed(ActionEvent e) {
				exit.dispose();
			}
		});
		
		panel.add(sure);
		panel.add(cancel);
		exit.setLayout(new BorderLayout());
		exit.add(BorderLayout.CENTER,label);
		exit.add(BorderLayout.SOUTH,panel);
		exit.setBounds(300, 400, 400, 120);
		exit.addWindowListener(new WindowAdapter() {
			@Override
			public void windowClosing(WindowEvent e) {
				exit.dispose();
			}
		});
		exit.setVisible(true);
	}
	
	
}