view.java

一个基于PlaceLab的室内和室外的智能导航系统

package org.placelab.stumbler.smallgui;

import java.io.File;
import java.io.IOException;
import java.util.Enumeration;
import java.util.Hashtable;

import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.MessageBox;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.TableItem;
import org.placelab.core.GPSMeasurement;
import org.placelab.spotter.BluetoothSpotter;
import org.placelab.spotter.NMEAGPSSpotter;
import org.placelab.spotter.WiFiSpotter;
import org.placelab.stumbler.SpotterExtension;


public class View extends Composite {
	
	public static Display display;
	public static Shell shell;
	
	private static int PLATFORM;
	private static int PLATFORM_PPC = 1;
	private static int PLATFORM_OTHER = 2;

	
	static {
		display = new Display();
		
		// get platform
		if (System.getProperty("os.name").equalsIgnoreCase("Windows CE")) {
			PLATFORM = PLATFORM_PPC;
			//System.out.println("PocketPC Platform");
		} else { 
			//System.out.println("Non-PocketPC Platform = " + System.getProperty("os.name"));
			PLATFORM = PLATFORM_OTHER;
		}

		if (PLATFORM == PLATFORM_PPC) {
			shell = new Shell(display, SWT.NO_TRIM | SWT.RESIZE);
			shell.setLocation(0,26);
			
			// take up the whole screen.
			Rectangle screen = display.getClientArea();
			shell.setSize(screen.width, screen.height);
		} else {
			shell = new Shell(display, SWT.SHELL_TRIM);
		}
		{
			RowLayout rl = new RowLayout(SWT.VERTICAL);
			rl.marginTop = 0;
			rl.marginLeft = 0;
			rl.marginRight = 0;
			rl.marginBottom = 0;
			shell.setLayout(rl);
		}		
		shell.setBackground(display.getSystemColor(SWT.COLOR_WIDGET_BACKGROUND));
		shell.setText("PlaceLab Stumbler");
		Display.setAppName("Stumbler");
		
	}
	
	private Composite beaconTable;
	private Composite status;
	private Menu menuBar;
	public View () {
		super(shell, SWT.NONE);
		
		
		GridLayout l = new GridLayout();
		l.numColumns = 1;
		l.marginHeight = 0;
		l.marginWidth = 0;
		setLayout(l);
		
	
		
	
		beaconTable = new BeaconTable(this);
		beaconTable.setVisible(true);
		
		
		
		status = new Status(this);
		status.setVisible(true);
		
		loadMenus();
		
		shell.open();
	}
	
	private void loadMenus () {
		

		menuBar = new Menu(shell, SWT.BAR);
		shell.setMenuBar(menuBar);
		
		// FILE
		{
			MenuItem item = new MenuItem(menuBar, SWT.CASCADE);
			item.setText("File");
			
			Menu sub = new Menu(shell, SWT.DROP_DOWN);
			item.setMenu(sub);
			
			MenuItem newLog = new MenuItem(sub, SWT.PUSH);
			newLog.setText("New");
			newLog.addListener(SWT.Selection, new Listener(){
				public void handleEvent(Event e) {
					try {
					Stumbler.getStumbler().newLog();
					} catch (IOException ioe) {
						reportError(ioe.toString());
					}
				}
			});
			
			MenuItem open = new MenuItem(sub, SWT.PUSH);
			open.setText("Open...");
			open.addListener(SWT.Selection, new Listener(){
				public void handleEvent(Event e) {
					FileDialog fd = new FileDialog(View.shell, SWT.OPEN);
					fd.setFilterExtensions(new String[]{".log"});
					String file = fd.open();
					if (file != null) {
						try {
							Stumbler.getStumbler().openLog(file);
						} catch (IOException ioe) {
							reportError(ioe.toString());
						}
					}
				}
			});
			
			MenuItem save = new MenuItem(sub, SWT.PUSH);
			save.setText("Save");
			save.addListener(SWT.Selection, new Listener(){
				public void handleEvent(Event e) {
					FileDialog fd = new FileDialog(View.shell, SWT.SAVE);
					fd.setFilterExtensions(new String[]{".log"});
					String file = fd.open();
					if (file != null) {
						try {
							Stumbler.getStumbler().saveLog(file);
						} catch (IOException ioe) {
							reportError(ioe.toString());
						}
					}
				}
			});
			
			MenuItem saveAs = new MenuItem(sub, SWT.PUSH);
			saveAs.setText("Save As...");
			saveAs.addListener(SWT.Selection, new Listener(){
				public void handleEvent(Event e) {
					FileDialog fd = new FileDialog(View.shell, SWT.SAVE);
					fd.setFilterExtensions(new String[]{".log"});
					String file = fd.open();
					if (file != null) {
						try {
							Stumbler.getStumbler().saveLogAs(file);
						} catch (IOException ioe) {
							reportError(ioe.toString());
						}
					}
				}
			});
			
			MenuItem upload = new MenuItem(sub, SWT.PUSH);
			upload.setText("Upload...");
			upload.addListener(SWT.Selection, new Listener(){
				public void handleEvent(Event e) {
					MessageBox mb = new MessageBox(View.shell, SWT.ICON_INFORMATION | SWT.OK );
					mb.setMessage("Not yet implemented.");
					mb.open();
				}
			});
			
			new MenuItem(sub, SWT.SEPARATOR);
			
			MenuItem enable = new MenuItem(sub, SWT.CHECK);
			enable.setText("Stumble");
			enable.setSelection(Stumbler.getStumbler().isStumbling() ? true : false);
			enable.addListener(SWT.Selection, new Listener(){
				public void handleEvent(Event e) {
					if (((MenuItem) e.widget).getSelection()) {						
						Stumbler.getStumbler().startStumbling();
					} else {
						Stumbler.getStumbler().stopStumbling();
					}
				}
			});
			
			new MenuItem(sub, SWT.SEPARATOR);
			
			MenuItem quit = new MenuItem(sub, SWT.CHECK);
			quit.setText("Quit");
			quit.addListener(SWT.Selection, new Listener(){
				public void handleEvent(Event e) {
					Stumbler.getStumbler().stopStumbling();
					View.display.dispose();
					System.exit(1);
				}
			});
			
			
		}
		
		// SPOTTER
		{
			MenuItem item = new MenuItem(menuBar, SWT.CASCADE);
			item.setText("Devices");
			
			Menu sub = new Menu(shell, SWT.DROP_DOWN);
			item.setMenu(sub);
			
			for (Enumeration e = Stumbler.getStumbler().getReceivers(); e.hasMoreElements(); ) {
				Receiver r = (Receiver) e.nextElement();
				//System.out.println("r: " + r.getType());
				
				// don't show GPS on this menu.
				if (r instanceof GPSReceiver) 
					continue;
				
				MenuItem mi = new MenuItem(sub, SWT.CHECK);
				mi.setText(r.getType());
				mi.setSelection(false);
				
				Class[] supSpotter = r.getSupportedSpotters();
				
				for (int i = 0;i<supSpotter.length;i++) {
					SpotterExtension s = (SpotterExtension) Stumbler.getStumbler().getSpotter(supSpotter[i]);
					if (s == null)
						continue;
					
					if (s.isScanning()) {
						mi.setSelection(true);
						break;
					}
				}
				
				mi.addListener(SWT.Selection, new Listener(){
					public void handleEvent (Event e) {
						MenuItem mi = (MenuItem) e.widget;
						for (Enumeration re = Stumbler.getStumbler().getReceivers(); re.hasMoreElements(); ) {
							Receiver r = (Receiver) re.nextElement();
							
							if (!r.getType().equals(mi.getText()))
								continue;
							
							Class[] supSpotter = r.getSupportedSpotters();
							
							for (int i = 0;i<supSpotter.length;i++) {
								SpotterExtension s = (SpotterExtension) Stumbler.getStumbler().getSpotter(supSpotter[i]);
								if (s == null)
									continue;
								
								if (mi.getSelection()) {
									s.startScanning();
								} else {
									s.stopScanning();
								}
							}
						}
						
					}
				});
				
				
			}
			
		}
		
		
		/**
		 * This code will eventually provide a quick on/off toggle button