simoperatorpanel.java

含有uml的多个实例及实例的java源码。

/*
 * ATM Example system - file SimOperatorPanel.java
 *
 * copyright (c) 2001 - Russell C. Bjork
 *
 */
 
package simulation;

import atm.ATM;

import java.awt.*;
import java.awt.event.*;

/** Simulate the operator panel
 */
class SimOperatorPanel extends Panel
{
    /** Constructor
     *
     *  @param simulation the overall simulation object
     */
    SimOperatorPanel(final Simulation simulation)
    {
        setLayout(new BorderLayout(10, 0));
        setBackground(new Color(128,128,255));
        add(new Label("     Operator Panel"), BorderLayout.WEST);
        final Label message = new Label("Click button to turn ATM on", Label.CENTER);
        add(message, BorderLayout.CENTER);
        final Button button = new Button(" ON ");
        button.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e)
            {
                if (button.getLabel().equals("OFF"))    // ATM is currently on
                {
                    message.setText("Click button to turn ATM on  ");
                    button.setLabel(" ON ");
                    
                    simulation.switchChanged(false);
                }
                else                                    // ATM is currently off
                {
                    message.setText("Click button to turn ATM off");
                    button.setLabel("OFF");
                    
                    simulation.switchChanged(true);
                }
            }
        });
        Panel buttonPanel = new Panel();
        buttonPanel.add(button);
        add(buttonPanel, BorderLayout.EAST);
        
        // Use a thread to blink the "Click button to turn ATM on" message when
        // the ATM is off.  This will also make the message invisible when the
        // button is not enabled.
        
        new Thread() {
            public void run()
            {
                while(true)
                {
                    try
                    {
                        sleep(1000);
                    }
                    catch(InterruptedException e)
                    { }
                    
                    if (message.isVisible() && ! button.getLabel().equals("OFF")
                            || ! SimOperatorPanel.this.isEnabled() )
                        message.setVisible(false);
                    else
                        message.setVisible(true);
                }
            }
        }.start();
    }
}