airframe.java

来自「《移动Agent技术》一书的所有章节源代码。」· Java 代码 · 共 238 行

/* AirFrame.java
 * $Id: AirFrame.java,v 2.3 1997-11-19 19:22:41+09 ht Exp $
 * $Name: alpha5_1-release $
 */

package com.ibm.acl.kqmlsample.travel;

import com.ibm.acl.kqml.*;

import java.lang.*;
import java.util.*;
import java.awt.*;
import java.awt.image.*;
import java.io.*;


/**
 * Class AirFrame
 *
 * @version     $Revision: 2.3 $ $Date: 1997-11-19 19:22:41+09 $
 * @author      Osamu Furusawa
 * @author      Hajime Tsuchitani
 */

public class AirFrame extends Frame {
  private final static String rcsid = "$Id: AirFrame.java,v 2.3 1997-11-19 19:22:41+09 ht Exp $ $Name: alpha5_1-release $";

  private List flightSched; // List box;
  private Vector flightTable = null; // real service table
  private Label flightSchedLabel;
  private Label titleLabel;
  private Panel northPanel;
  private AirLine agent;
  private TextArea textArea; // for system log
  private Menu fileMenu;
  private MenuItem quit;
  private MenuBar menuBar;
  private Button delay;
  private GridBagLayout gridbag;
  private GridBagConstraints gridBC;

  public AirFrame(String title,
			  AirLine agent)
  {
    super(title);

    this.agent = agent;

    flightTable = agent.getFlightTable();

    // menu creation
    fileMenu = new Menu("File");
    quit = new MenuItem("Quit");
    menuBar = new MenuBar();
    fileMenu.add(quit);
    menuBar.add(fileMenu);
    setMenuBar(menuBar);

    // syslog text area
/*    textArea = new TextArea();
    textArea.minimumSize(400, 300);
    textArea.preferredSize(400, 400);
    textArea.setBackground(Color.white);
    textArea.setEditable(false);
*/
    // service table construction
    flightSched = new List(20, false);
    flightSched.minimumSize(20); // 5 rows needed.
    flightSched.preferredSize(20); 
    flightSched.setFont(new Font("Monospaced", Font.BOLD, 20));
    //flightSched.setFont(new Font("Courier", Font.PLAIN, 12));
    flightSched.setBackground(Color.white);

    Enumeration enum = flightTable.elements();
    while(enum.hasMoreElements()) {
      this.addItem((FlightInfo) enum.nextElement());
    }

    flightSchedLabel = new Label("Flight Schedule");
    flightSchedLabel.setFont(new Font("Serif", Font.BOLD, 20));
    //flightSchedLabel.setFont(new Font("Times", Font.BOLD, 16));

    delay = new Button("Delay");

    titleLabel = new Label(title);
    titleLabel.setFont(new Font("SanSerif", Font.BOLD, 36));
    //titleLabel.setFont(new Font("Helvetica", Font.PLAIN, 36));
    titleLabel.setForeground(new Color(60, 170, 60)); //  green

    northPanel = new Panel();
    gridbag = new GridBagLayout();
    gridBC = new GridBagConstraints();
    northPanel.setLayout(gridbag);

    gridBC.gridwidth = GridBagConstraints.REMAINDER;
    gridbag.setConstraints(titleLabel, gridBC);
    northPanel.add(titleLabel);

    gridBC.gridwidth = GridBagConstraints.RELATIVE;
    gridBC.anchor = GridBagConstraints.WEST;
    gridBC.weightx = 1.0;
    gridBC.weighty = 1.0;
    gridbag.setConstraints(flightSchedLabel, gridBC);
    northPanel.add(flightSchedLabel);

    gridBC.gridwidth = GridBagConstraints.REMAINDER;
    gridBC.anchor = GridBagConstraints.EAST;
    gridbag.setConstraints(delay, gridBC);
    northPanel.add(delay);

    gridBC.anchor = GridBagConstraints.CENTER;
    gridBC.fill = GridBagConstraints.BOTH;
    gridbag.setConstraints(flightSched, gridBC);
    northPanel.add(flightSched);

    northPanel.setBackground(Color.white);

    add("North", northPanel);
    add("Center", flightSched);

    pack();
    resize(450, 500);
  }

  public void setMessage(String msg) {
    textArea.appendText(msg + "\n");
  }

  public void addItem(FlightInfo flightInfo) {

    if (flightTable == null) flightTable = new Vector(); // for test

    StringBuffer 
      sb = new
	StringBuffer("                                                  ");

    String classname;
    String arl;

    sb.insert(0, classname = new String(flightInfo.getCarrier()));
    sb.insert(5, classname = new String(flightInfo.getFlight()));
    sb.insert(10, classname = new String(flightInfo.getDeparture()));
    sb.insert(15, classname = new String(flightInfo.getArrival()));
    sb.insert(20, classname = new String(flightInfo.getDeptTime()));

    flightSched.addItem(sb.toString().trim());
    // flightTable.addElement(flightInfo); 
  }

  public boolean handleEvent(Event evt) {
    if (evt.id == Event.WINDOW_DESTROY) {
      System.exit(0);
    } else if (evt.id == Event.ACTION_EVENT) {
      if (evt.target == quit) {
	System.exit(0);
      } else if (evt.target == delay) {
	int selectedIndex;

	if ((selectedIndex = flightSched.getSelectedIndex()) != -1) {
	  FlightInfo flightInfo = 
	    (FlightInfo) flightTable.elementAt(selectedIndex);

	  StringBuffer 
	    sb = new
	      StringBuffer("                                                  ");

	  sb.insert(0, new String(flightInfo.getCarrier()));
	  sb.insert(5, new String(flightInfo.getFlight()));
	  sb.insert(10, new String(flightInfo.getDeparture()));
	  sb.insert(15, new String(flightInfo.getArrival()));

	  String deptTime = flightInfo.getDeptTime();
	  String newDeptTime;
	  if (deptTime.endsWith("AM")) {
	    newDeptTime = 
	      new String(deptTime.substring(0, deptTime.lastIndexOf("AM")) + 
		       "PM");
	  } else if (deptTime.endsWith("PM")){
	    newDeptTime = 
	      new String(deptTime.substring(0, deptTime.lastIndexOf("PM")) + 
		       "AM");
	  } else {
	    newDeptTime = deptTime;
	  }
	  sb.insert(20, newDeptTime);
	  
	  flightInfo.setDeptTime(newDeptTime);

	  flightTable.setElementAt(flightInfo, selectedIndex);
	  flightSched.replaceItem(sb.toString(), selectedIndex);
	  flightSched.select(selectedIndex);

	  agent.updateSchedule(flightInfo);
	}
	return true;
      }
    }
    return super.handleEvent(evt);
  }

// for test
    
  public static void main(String[] args) {
 
    AirFrame frame = 
      new AirFrame("Airline-A", null);

    frame.addItem(new FlightInfo("JAL", "123", "NRT", "JFK",
					      "03/21/97 AM"));
    frame.addItem(new FlightInfo("JAL", "323", "NRT", "CDG",
					      "03/21/97 AM"));
    frame.addItem(new FlightInfo("JAL", "523", "NRT", "LHR",
					      "03/21/97 AM"));
    frame.addItem(new FlightInfo("JAL", "623", "NRT", "SFO",
					      "03/21/97 AM"));
    frame.addItem(new FlightInfo("JAL", "723", "NRT", "SFO",
					      "03/21/97 AM"));
    frame.addItem(new FlightInfo("JAL", "613", "NRT", "SFO",
					      "03/21/97 AM"));
    frame.addItem(new FlightInfo("JAL", "621", "NRT", "SFO",
					      "03/21/97 AM"));
    frame.addItem(new FlightInfo("JAL", "622", "NRT", "SFO",
					      "03/21/97 AM"));
    frame.addItem(new FlightInfo("JAL", "625", "NRT", "SFO",
					      "03/21/97 AM"));
    frame.addItem(new FlightInfo("JAL", "626", "NRT", "SFO",
					      "03/21/97 AM"));

    frame.show();

  }

}