secureprompt.java

< 网络机器人java编程指南>>的配套源程序

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

/**
 * Example from Chapter 4
 *
 * Simple object to prompt for user id/password.
 *
 * @author Jeff Heaton
 * @version 1.0
 */
public class SecurePrompt extends javax.swing.JDialog
{
	public SecurePrompt(Frame parent)
	{
		super(parent,true);

		//{{INIT_CONTROLS
		setTitle("Security");
		getContentPane().setLayout(null);
		setSize(403,129);
		setVisible(false);
		JLabel1.setText("User ID:");
		getContentPane().add(JLabel1);
		JLabel1.setBounds(12,12,48,24);
		JLabel2.setText("Password:");
		getContentPane().add(JLabel2);
		JLabel2.setBounds(12,48,72,24);
		_uid.setText("jheaton");
		getContentPane().add(_uid);
		_uid.setBounds(72,12,324,24);
		_ok.setText("OK");
		getContentPane().add(_ok);
		_ok.setBounds(60,84,84,24);
		getContentPane().add(_pwd);
		_pwd.setBounds(72,48,324,24);
		_cancel.setText("Cancel");
		getContentPane().add(_cancel);
		_cancel.setBounds(264,84,84,24);
		//}}

		//{{REGISTER_LISTENERS
		SymAction lSymAction = new SymAction();
		_ok.addActionListener(lSymAction);
		_cancel.addActionListener(lSymAction);
		//}}
	}

	public void setVisible(boolean b)
	{
		if (b)
			setLocation(50, 50);
		super.setVisible(b);
	}

	public void addNotify()
	{
		// Record the size of the window prior to calling parents addNotify.
		Dimension size = getSize();

		super.addNotify();

		if (frameSizeAdjusted)
			return;
		frameSizeAdjusted = true;

		// Adjust size of frame according to the insets
		Insets insets = getInsets();
		setSize(insets.left +
		  insets.right +
		  size.width,
		  insets.top +
		  insets.bottom +
		  size.height);
	}

	// Used by addNotify
	boolean frameSizeAdjusted = false;

	//{{DECLARE_CONTROLS
	javax.swing.JLabel JLabel1 = new javax.swing.JLabel();
	javax.swing.JLabel JLabel2 = new javax.swing.JLabel();

	/**
	 * The user id entered.
	 */
	javax.swing.JTextField _uid = new javax.swing.JTextField();

	/**
	 */
	javax.swing.JButton _ok = new javax.swing.JButton();

	/**
	 * The password entered.
	 */
	javax.swing.JPasswordField _pwd = new javax.swing.JPasswordField();
	javax.swing.JButton _cancel = new javax.swing.JButton();
	//}}


	class SymAction implements java.awt.event.ActionListener
	{
		public void actionPerformed(java.awt.event.ActionEvent event)
		{
			Object object = event.getSource();
			if (object == _ok)
				Ok_actionPerformed(event);
			else if (object == _cancel)
				Cancel_actionPerformed(event);
		}
	}

	/**
	 * Called when ok is clicked.
	 *
	 * @param event
	 */
	void Ok_actionPerformed(java.awt.event.ActionEvent event)
	{
		setVisible(false);
	}

	/**
	 * Called when cancel is clicked.
	 *
	 * @param event
	 */
	void Cancel_actionPerformed(java.awt.event.ActionEvent event)
	{
	  _uid.setText("");
	  _pwd.setText("");
		setVisible(false);
	}
}