othersrc/otdt-examples/OTSample-Flightbonus-src/src/booking/org/eclipse/objectteams/example/flightbooking/gui/FlightBookingGUI.java - objectteams/org.eclipse.objectteams - Git at Google

 /**********************************************************************
  * This file is part of "Object Teams Development Tooling"-Software
  *
  * Copyright 2004, 2010 Fraunhofer Gesellschaft, Munich, Germany,
  * for its Fraunhofer Institute and Computer Architecture and Software
  * Technology (FIRST), Berlin, Germany and Technical University Berlin,
  * Germany.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
  * which accompanies this distribution, and is available at
  * https://www.eclipse.org/legal/epl-2.0/
  *
  * SPDX-License-Identifier: EPL-2.0
  *
  * Please visit http://www.eclipse.org/objectteams for updates and contact.
  *
  * Contributors:
  * 	  Fraunhofer FIRST - Initial API and implementation
  * 	  Technical University Berlin - Initial API and implementation
  **********************************************************************/
 package org.eclipse.objectteams.example.flightbooking.gui;

 import java.awt.Dimension;
 import java.awt.GridBagConstraints;
 import java.awt.GridBagLayout;
 import java.awt.Insets;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;

 import javax.swing.DefaultListModel;
 import javax.swing.JButton;
 import javax.swing.JFrame;
 import javax.swing.JLabel;
 import javax.swing.JList;
 import javax.swing.JOptionPane;
 import javax.swing.JPanel;
 import javax.swing.JScrollPane;
 import javax.swing.SwingConstants;
 import javax.swing.WindowConstants;
 import javax.swing.event.ListSelectionEvent;
 import javax.swing.event.ListSelectionListener;

 import org.eclipse.objectteams.example.flightbooking.FlightBookingSystem;
 import org.eclipse.objectteams.example.flightbooking.model.BookingException;
 import org.eclipse.objectteams.example.flightbooking.model.Flight;
 import org.eclipse.objectteams.example.flightbooking.model.Passenger;
 import org.eclipse.objectteams.example.flightbooking.model.PassengerDB;
 import org.eclipse.objectteams.example.flightbooking.util.FlightIterator;


 /**
 * This class implements a simple graphical user interface for the flight booking system.
 */
 @SuppressWarnings("serial")
 public class FlightBookingGUI extends JFrame {

 	private JList 	_flightList;
 	private JList 	_passengerList;

 	private FlightBookingSystem _system;
 	private FlightBookingGUI 	_frame = this;
 	private DefaultListModel 	_flightModel;
 	private DefaultListModel 	_customerModel;
 	private Flight 			_selectedFlight;
 	private Passenger 		_selectedCustomer;

 	/**
 	 * Creates new <code>FlightBookingGUI</code> object
 	 */
 	public FlightBookingGUI(FlightBookingSystem system) {
 		_system = system;
 		_customerModel = new DefaultListModel();
 		_flightModel = new DefaultListModel();
 		initFlightModel();
 		initCustomerModel();
 		initComponents();
 		this.setResizable(false);
 	}

 	/**
 	 * Initializes the <code>FlightModel</code> with data contained
 	 * in the flight booking system,
 	 */
 	private void initFlightModel() {
 		for (FlightIterator iter = _system.getOfferedFlights(); iter.hasNext();) {
 			_flightModel.addElement(iter.getNext());
 		}
 	}

 	/**
 	 * Initializes the <code>PassengerModel</code> with data contained
 	 * in the flight booking system,
 	 */
 	private void initCustomerModel() {
 		for (PassengerDB passengers = _system.getRegisteredPassengers(); passengers.hasNext();) {
 			_customerModel.addElement(passengers.getNext());
 		}
 	}
 	/**
 	 * Returns the customer
 	 */
 	public DefaultListModel getCustomerModel() {
 		return _customerModel;
 	}

 	/**
 	 * Returns the flight model
 	 */
 	public DefaultListModel getFlightModel() {
 		return _flightModel;
 	}

 	/**
 	 * Invoked when the bookButton is pressed
 	 */
 	public void bookButtonClicked() {

 		if(_selectedFlight == null) {
 			showErrDialog("Please select a flight!");
 			return;
 		}

 		if(_selectedCustomer == null) {
 			showErrDialog("Please select a passenger!");
 			return;
 		}

 		Passenger prev = _system.getCurrentPassenger();
 		if (prev != null) {
 			_system.disableCurrentPassenger(prev.getName());
 		}

 		_system.setCurrentPassenger(_selectedCustomer.getName());

 		try {
 			_system.bookFlight(_flightList.getSelectedIndex());
 		} catch (BookingException ex) {
 			showErrDialog("Booking transaction failed: " + ex.getMessage());
 			return;
 		}

 		showInfoDialog("Passenger " + _selectedCustomer.getName() + ":  "
 				+ _selectedFlight + "\n"
 				+ _selectedCustomer.getName() + "'s balance :  "
 				+ _selectedCustomer.getBudget());
 	}


 	/**
 	 * This method is called from within the constructor to
 	 * initialize the form.
 	 */
 	private void initComponents() {
         GridBagConstraints gridBagConstraints = null;

         JButton bookButton = new JButton();
         JButton customerButton = new JButton();
         JButton exitButton = new JButton();
         JScrollPane flightPane = new JScrollPane();
         JScrollPane passPane = new JScrollPane();
         _flightList = new JList(_flightModel);
         _passengerList = new JList(_customerModel);

         getContentPane().setLayout(new GridBagLayout());

         setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
         setTitle("Flight Booking System");

         JLabel flightsLabel = new JLabel();
         flightsLabel.setText("Offered Flights: ");
         gridBagConstraints = new GridBagConstraints();
         gridBagConstraints.gridx = 1;
         gridBagConstraints.gridy = 0;
         gridBagConstraints.anchor = GridBagConstraints.WEST;
         gridBagConstraints.insets = new Insets(5, 19, 5, 17);
         getContentPane().add(flightsLabel, gridBagConstraints);

         JLabel passLabel = new JLabel();
         passLabel.setText("Passengers: ");
         passLabel.setHorizontalAlignment(SwingConstants.RIGHT);
         gridBagConstraints = new java.awt.GridBagConstraints();
         gridBagConstraints.gridx = 0;
         gridBagConstraints.gridy = 0;
         gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
         gridBagConstraints.insets = new java.awt.Insets(0, 10, 0, 43);
         getContentPane().add(passLabel, gridBagConstraints);

         _flightList.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);
         flightPane.setPreferredSize(new Dimension(250, 250));
         flightPane.setViewportView(_flightList);

         gridBagConstraints = new GridBagConstraints();
         gridBagConstraints.gridx = 1;
         gridBagConstraints.gridy = 1;
         gridBagConstraints.gridheight = 5;
         gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
         gridBagConstraints.insets = new java.awt.Insets(0, 20, 0, 10);
         getContentPane().add(flightPane, gridBagConstraints);

         _passengerList.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);
         passPane.setPreferredSize(new Dimension(100, 250));
         passPane.setViewportView(_passengerList);

         gridBagConstraints = new GridBagConstraints();
         gridBagConstraints.gridx = 0;
         gridBagConstraints.gridy = 1;
         gridBagConstraints.gridheight = 5;
         gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
         gridBagConstraints.insets = new java.awt.Insets(0, 10, 0, 0);
         getContentPane().add(passPane, gridBagConstraints);


         customerButton.setText("New Passenger");
         customerButton.addActionListener(new ActionListener() {
         	public void actionPerformed(ActionEvent evt) {
         		showEnterCustomerDialog();
         	}
         });
         gridBagConstraints = new GridBagConstraints();
         gridBagConstraints.gridx = 2;
         gridBagConstraints.gridy = 1;
 //        gridBagConstraints.insets = new Insets(0, 20, 0, 0);
         getContentPane().add(customerButton, gridBagConstraints);

         bookButton.setText("Book");
         bookButton.setPreferredSize(customerButton.getPreferredSize());
         bookButton.addActionListener(new java.awt.event.ActionListener() {
             public void actionPerformed(java.awt.event.ActionEvent evt) {
                 bookButtonClicked();
             }
         });

         gridBagConstraints = new GridBagConstraints();
         gridBagConstraints.gridx = 2;
         gridBagConstraints.gridy = 2;
         getContentPane().add(bookButton, gridBagConstraints);


         JPanel btnPanel = new JPanel();
         btnPanel.setLayout(new GridBagLayout());

         exitButton.setText("Exit");
         exitButton.addActionListener(new java.awt.event.ActionListener() {
             public void actionPerformed(java.awt.event.ActionEvent evt) {
                 System.exit(0);
             }
         });

         gridBagConstraints = new GridBagConstraints();
         gridBagConstraints.gridx = 5;
         gridBagConstraints.gridy = 0;
         btnPanel.add(exitButton, gridBagConstraints);

         gridBagConstraints = new GridBagConstraints();
         gridBagConstraints.gridx = 0;
         gridBagConstraints.gridy = 6;
         gridBagConstraints.gridwidth = 3;
         gridBagConstraints.anchor = java.awt.GridBagConstraints.EAST;
         gridBagConstraints.insets = new java.awt.Insets(20, 10, 10, 10);
         getContentPane().add(btnPanel, gridBagConstraints);


         _flightList.addListSelectionListener(new ListSelectionListener() {
             public void valueChanged(javax.swing.event.ListSelectionEvent evt) {
                 flightListValueChanged(evt);
             }
         });

         _passengerList.addListSelectionListener(new ListSelectionListener() {
             public void valueChanged(ListSelectionEvent evt) {
                 customerListValueChanged(evt);
             }
         });

         pack();
     }

 	/**
 	 * Updates the selected flight reference when the flight list value is changed
 	 */
 	public void flightListValueChanged(ListSelectionEvent evt) {
 		_selectedFlight = (Flight)_flightList.getSelectedValue();
 	}

 	/**
 	 * Updates the selected customer reference when the passenger list value is changed
 	 */
 	public void customerListValueChanged(ListSelectionEvent evt) {
 		if(!_passengerList.isSelectionEmpty()) {
 			_selectedCustomer = (Passenger)_passengerList.getSelectedValue();
 		}
 	}

 	/**
 	 * Shows the given message in a message dialog box
 	 */
     private void showInfoDialog(final String message){
     		JOptionPane.showMessageDialog(_frame, message, "Message", JOptionPane.INFORMATION_MESSAGE);
     }

     /**
      * Shows the given message in a error dialog box
      */
     private void showErrDialog(final String message){
     		JOptionPane.showMessageDialog(_frame, message, "Error", JOptionPane.ERROR_MESSAGE);
     }

     /**
      * Shows the <code>EnterPassengerDialog</code> for entering of new passenger data
      */
     private void showEnterCustomerDialog() {
 	    	this.setEnabled(false);
 	    	new EnterPassengerDialog(_frame,false,_system);
     }
 }
	/**********************************************************************
	* This file is part of "Object Teams Development Tooling"-Software
	*
	* Copyright 2004, 2010 Fraunhofer Gesellschaft, Munich, Germany,
	* for its Fraunhofer Institute and Computer Architecture and Software
	* Technology (FIRST), Berlin, Germany and Technical University Berlin,
	* Germany.
	*
	* This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License 2.0
	* which accompanies this distribution, and is available at
	* https://www.eclipse.org/legal/epl-2.0/
	*
	* SPDX-License-Identifier: EPL-2.0
	*
	* Please visit http://www.eclipse.org/objectteams for updates and contact.
	*
	* Contributors:
	* Fraunhofer FIRST - Initial API and implementation
	* Technical University Berlin - Initial API and implementation
	**********************************************************************/
	package org.eclipse.objectteams.example.flightbooking.gui;

	import java.awt.Dimension;
	import java.awt.GridBagConstraints;
	import java.awt.GridBagLayout;
	import java.awt.Insets;
	import java.awt.event.ActionEvent;
	import java.awt.event.ActionListener;

	import javax.swing.DefaultListModel;
	import javax.swing.JButton;
	import javax.swing.JFrame;
	import javax.swing.JLabel;
	import javax.swing.JList;
	import javax.swing.JOptionPane;
	import javax.swing.JPanel;
	import javax.swing.JScrollPane;
	import javax.swing.SwingConstants;
	import javax.swing.WindowConstants;
	import javax.swing.event.ListSelectionEvent;
	import javax.swing.event.ListSelectionListener;

	import org.eclipse.objectteams.example.flightbooking.FlightBookingSystem;
	import org.eclipse.objectteams.example.flightbooking.model.BookingException;
	import org.eclipse.objectteams.example.flightbooking.model.Flight;
	import org.eclipse.objectteams.example.flightbooking.model.Passenger;
	import org.eclipse.objectteams.example.flightbooking.model.PassengerDB;
	import org.eclipse.objectteams.example.flightbooking.util.FlightIterator;



	/**
	* This class implements a simple graphical user interface for the flight booking system.
	*/
	@SuppressWarnings("serial")
	public class FlightBookingGUI extends JFrame {

	private JList _flightList;
	private JList _passengerList;

	private FlightBookingSystem _system;
	private FlightBookingGUI _frame = this;
	private DefaultListModel _flightModel;
	private DefaultListModel _customerModel;
	private Flight _selectedFlight;
	private Passenger _selectedCustomer;

	/**
	* Creates new <code>FlightBookingGUI</code> object
	*/
	public FlightBookingGUI(FlightBookingSystem system) {
	_system = system;
	_customerModel = new DefaultListModel();
	_flightModel = new DefaultListModel();
	initFlightModel();
	initCustomerModel();
	initComponents();
	this.setResizable(false);
	}

	/**
	* Initializes the <code>FlightModel</code> with data contained
	* in the flight booking system,
	*/
	private void initFlightModel() {
	for (FlightIterator iter = _system.getOfferedFlights(); iter.hasNext();) {
	_flightModel.addElement(iter.getNext());
	}
	}

	/**
	* Initializes the <code>PassengerModel</code> with data contained
	* in the flight booking system,
	*/
	private void initCustomerModel() {
	for (PassengerDB passengers = _system.getRegisteredPassengers(); passengers.hasNext();) {
	_customerModel.addElement(passengers.getNext());
	}
	}
	/**
	* Returns the customer
	*/
	public DefaultListModel getCustomerModel() {
	return _customerModel;
	}

	/**
	* Returns the flight model
	*/
	public DefaultListModel getFlightModel() {
	return _flightModel;
	}

	/**
	* Invoked when the bookButton is pressed
	*/
	public void bookButtonClicked() {

	if(_selectedFlight == null) {
	showErrDialog("Please select a flight!");
	return;
	}

	if(_selectedCustomer == null) {
	showErrDialog("Please select a passenger!");
	return;
	}

	Passenger prev = _system.getCurrentPassenger();
	if (prev != null) {
	_system.disableCurrentPassenger(prev.getName());
	}

	_system.setCurrentPassenger(_selectedCustomer.getName());

	try {
	_system.bookFlight(_flightList.getSelectedIndex());
	} catch (BookingException ex) {
	showErrDialog("Booking transaction failed: " + ex.getMessage());
	return;
	}

	showInfoDialog("Passenger " + _selectedCustomer.getName() + ": "
	+ _selectedFlight + "\n"
	+ _selectedCustomer.getName() + "'s balance : "
	+ _selectedCustomer.getBudget());
	}


	/**
	* This method is called from within the constructor to
	* initialize the form.
	*/
	private void initComponents() {
	GridBagConstraints gridBagConstraints = null;

	JButton bookButton = new JButton();
	JButton customerButton = new JButton();
	JButton exitButton = new JButton();
	JScrollPane flightPane = new JScrollPane();
	JScrollPane passPane = new JScrollPane();
	_flightList = new JList(_flightModel);
	_passengerList = new JList(_customerModel);

	getContentPane().setLayout(new GridBagLayout());

	setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
	setTitle("Flight Booking System");

	JLabel flightsLabel = new JLabel();
	flightsLabel.setText("Offered Flights: ");
	gridBagConstraints = new GridBagConstraints();
	gridBagConstraints.gridx = 1;
	gridBagConstraints.gridy = 0;
	gridBagConstraints.anchor = GridBagConstraints.WEST;
	gridBagConstraints.insets = new Insets(5, 19, 5, 17);
	getContentPane().add(flightsLabel, gridBagConstraints);

	JLabel passLabel = new JLabel();
	passLabel.setText("Passengers: ");
	passLabel.setHorizontalAlignment(SwingConstants.RIGHT);
	gridBagConstraints = new java.awt.GridBagConstraints();
	gridBagConstraints.gridx = 0;
	gridBagConstraints.gridy = 0;
	gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
	gridBagConstraints.insets = new java.awt.Insets(0, 10, 0, 43);
	getContentPane().add(passLabel, gridBagConstraints);

	_flightList.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);
	flightPane.setPreferredSize(new Dimension(250, 250));
	flightPane.setViewportView(_flightList);

	gridBagConstraints = new GridBagConstraints();
	gridBagConstraints.gridx = 1;
	gridBagConstraints.gridy = 1;
	gridBagConstraints.gridheight = 5;
	gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
	gridBagConstraints.insets = new java.awt.Insets(0, 20, 0, 10);
	getContentPane().add(flightPane, gridBagConstraints);

	_passengerList.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);
	passPane.setPreferredSize(new Dimension(100, 250));
	passPane.setViewportView(_passengerList);

	gridBagConstraints = new GridBagConstraints();
	gridBagConstraints.gridx = 0;
	gridBagConstraints.gridy = 1;
	gridBagConstraints.gridheight = 5;
	gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
	gridBagConstraints.insets = new java.awt.Insets(0, 10, 0, 0);
	getContentPane().add(passPane, gridBagConstraints);


	customerButton.setText("New Passenger");
	customerButton.addActionListener(new ActionListener() {
	public void actionPerformed(ActionEvent evt) {
	showEnterCustomerDialog();
	}
	});
	gridBagConstraints = new GridBagConstraints();
	gridBagConstraints.gridx = 2;
	gridBagConstraints.gridy = 1;
	// gridBagConstraints.insets = new Insets(0, 20, 0, 0);
	getContentPane().add(customerButton, gridBagConstraints);

	bookButton.setText("Book");
	bookButton.setPreferredSize(customerButton.getPreferredSize());
	bookButton.addActionListener(new java.awt.event.ActionListener() {
	public void actionPerformed(java.awt.event.ActionEvent evt) {
	bookButtonClicked();
	}
	});

	gridBagConstraints = new GridBagConstraints();
	gridBagConstraints.gridx = 2;
	gridBagConstraints.gridy = 2;
	getContentPane().add(bookButton, gridBagConstraints);


	JPanel btnPanel = new JPanel();
	btnPanel.setLayout(new GridBagLayout());

	exitButton.setText("Exit");
	exitButton.addActionListener(new java.awt.event.ActionListener() {
	public void actionPerformed(java.awt.event.ActionEvent evt) {
	System.exit(0);
	}
	});

	gridBagConstraints = new GridBagConstraints();
	gridBagConstraints.gridx = 5;
	gridBagConstraints.gridy = 0;
	btnPanel.add(exitButton, gridBagConstraints);

	gridBagConstraints = new GridBagConstraints();
	gridBagConstraints.gridx = 0;
	gridBagConstraints.gridy = 6;
	gridBagConstraints.gridwidth = 3;
	gridBagConstraints.anchor = java.awt.GridBagConstraints.EAST;
	gridBagConstraints.insets = new java.awt.Insets(20, 10, 10, 10);
	getContentPane().add(btnPanel, gridBagConstraints);


	_flightList.addListSelectionListener(new ListSelectionListener() {
	public void valueChanged(javax.swing.event.ListSelectionEvent evt) {
	flightListValueChanged(evt);
	}
	});

	_passengerList.addListSelectionListener(new ListSelectionListener() {
	public void valueChanged(ListSelectionEvent evt) {
	customerListValueChanged(evt);
	}
	});

	pack();
	}

	/**
	* Updates the selected flight reference when the flight list value is changed
	*/
	public void flightListValueChanged(ListSelectionEvent evt) {
	_selectedFlight = (Flight)_flightList.getSelectedValue();
	}

	/**
	* Updates the selected customer reference when the passenger list value is changed
	*/
	public void customerListValueChanged(ListSelectionEvent evt) {
	if(!_passengerList.isSelectionEmpty()) {
	_selectedCustomer = (Passenger)_passengerList.getSelectedValue();
	}
	}

	/**
	* Shows the given message in a message dialog box
	*/
	private void showInfoDialog(final String message){
	JOptionPane.showMessageDialog(_frame, message, "Message", JOptionPane.INFORMATION_MESSAGE);
	}

	/**
	* Shows the given message in a error dialog box
	*/
	private void showErrDialog(final String message){
	JOptionPane.showMessageDialog(_frame, message, "Error", JOptionPane.ERROR_MESSAGE);
	}

	/**
	* Shows the <code>EnterPassengerDialog</code> for entering of new passenger data
	*/
	private void showEnterCustomerDialog() {
	this.setEnabled(false);
	new EnterPassengerDialog(_frame,false,_system);
	}
	}