view.java

一个基于PlaceLab的室内和室外的智能导航系统

		 * that will live in the MenuBar on the PocketPC.  SWT on the PPC
		 * currently has a bug that prevents MenuItem's from triggering
		 * ArmEvent's when clicked. 
		 
		// Mac's will not tolerate images in the menu bar, and
		// it just doesn't look right unless you're on a PocketPC
		if (StringUtil.equalsIgnoreCase(System.getProperty("os.name"), "windows ce")) {
			MenuItem start = new MenuItem(menuBar, SWT.PUSH);
			start.setImage(new Image(View.display, this.getClass().getClassLoader().getResourceAsStream("resources/start"+(Stumbler.getStumbler().isStumbling() ? "-hot" : "")+".png")));
			start.addArmListener(new ArmListener(){
				
				public void widgetArmed (ArmEvent e) {
					MenuItem mi = (MenuItem) e.widget;
					System.out.println("blah!!!!!!");
					if (Stumbler.getStumbler().isStumbling()) {
						Stumbler.getStumbler().stopStumbling();
						mi.setImage(new Image(View.display, this.getClass().getClassLoader().getResourceAsStream("resources/start.png")));
					} else {
						Stumbler.getStumbler().startStumbling();
						mi.setImage(new Image(View.display, this.getClass().getClassLoader().getResourceAsStream("resources/start-hot.png")));
					}
					
				}
			});	
		}
		*/
	}
	
	public static void reportError (String msg) {
		MessageBox mb = new MessageBox(View.shell, SWT.ICON_ERROR | SWT.OK);
		mb.setMessage("Error: " + msg);
		mb.open();
	}
	
}


class Status extends Composite implements Runnable {
	
	Label gps;
	Label bt;
	Label wifi;
	Label logSize;
	Button toggleStumble;
	
	Composite line1;
	Composite line2;
	
	public Status (Composite parent) {
		super(parent, SWT.NONE);
		
		setSize(225, 20);
		
		{
			RowLayout rl = new RowLayout(SWT.VERTICAL);
			rl.marginTop = 0;
			rl.marginLeft = 3;
			rl.marginRight = 3;
			rl.justify = true;
			setLayout(rl);
		}
		
		line1 = new Composite(this, SWT.NONE);
		{
			
			RowLayout rl = new RowLayout(SWT.HORIZONTAL);
			rl.marginTop = 0;
			rl.marginLeft = 3;
			rl.marginRight = 3;
			rl.justify = true;
			line1.setLayout(rl);
			
			
			gps = new Label(line1, SWT.NONE);
			//new Label(line1, SWT.SEPARATOR);
			wifi = new Label(line1, SWT.NONE);
			//new Label(line1, SWT.SEPARATOR);
			bt = new Label(line1, SWT.NONE);
		}
		
		line2 = new Composite(this, SWT.NONE);
		{
			
			RowLayout rl = new RowLayout(SWT.HORIZONTAL);
			rl.marginTop = 0;
			rl.marginLeft = 3;
			rl.marginRight = 3;
			rl.justify = true;
			line2.setLayout(rl);
			
			//toggleStumble = new Button(line2, SWT.FLAT | SWT.NO_TRIM) ;
					
			logSize = new Label(line2, SWT.NONE);
			
			/*
			toggleStumble.setImage(new Image(View.display, this.getClass().getClassLoader().getResourceAsStream("resources/start"+(Stumbler.getStumbler().isStumbling() ? "-hot" : "")+".png")));
			toggleStumble.addSelectionListener(new SelectionListener(){
				
				public void widgetDefaultSelected(SelectionEvent e) {
					
				}
				
				public void widgetSelected (SelectionEvent e) {
					
					System.out.println("blah!!!!!!");
					if (Stumbler.getStumbler().isStumbling()) {
						Stumbler.getStumbler().stopStumbling();
						Status.this.toggleStumble.setImage(new Image(View.display, this.getClass().getClassLoader().getResourceAsStream("resources/start.png")));
					} else {
						Stumbler.getStumbler().startStumbling();
						Status.this.toggleStumble.setImage(new Image(View.display, this.getClass().getClassLoader().getResourceAsStream("resources/start-hot.png")));
					}
					
				}
			});
			*/	
		}
			
		
		
		gps.setText("No GPS");
		bt.setText("0 BT");
		wifi.setText("0 AP");
		
		logSize.setText("Log Empty");
		
		View.display.timerExec(1000, this);
	}
	
	public void receiverUpdated (Receiver r) {
		
	}
	
	public void run () {
		
		if (View.shell.isDisposed())
			return;
		
		WiFiReceiver wr = (WiFiReceiver) Stumbler.getStumbler().getReceiver(WiFiSpotter.class);
		if (wr != null) {
			wifi.setText(wr.totalNumBeacons() + " AP");
			wifi.setSize(wifi.computeSize(SWT.DEFAULT, SWT.DEFAULT));
		}
		
		BluetoothReceiver br = (BluetoothReceiver) Stumbler.getStumbler().getReceiver(BluetoothSpotter.class);
		if (br != null) {
			bt.setText(br.totalNumBeacons() + " BT");
			bt.setSize(bt.computeSize(SWT.DEFAULT, SWT.DEFAULT));
		}
		
		GPSReceiver gr = (GPSReceiver) Stumbler.getStumbler().getReceiver(NMEAGPSSpotter.class);
		if (gr != null) {
			String text = "No GPS";
			
			if (gr.hasLock() == GPSMeasurement.NO_INFO_RE_A_LOCK)
				text = "No Lock";
			else if (gr.hasLock() == GPSMeasurement.HAVE_A_LOCK)
				text = "GPS Lock";
			
			
			gps.setText(text);
			gps.setSize(gps.computeSize(SWT.DEFAULT, SWT.DEFAULT));
		}
		
		line1.setSize(line1.computeSize(SWT.DEFAULT, SWT.DEFAULT));
		
		String logFile = Stumbler.getStumbler().getLogFile();
		if (logFile != null) {
			File f = new File(logFile);
			logSize.setText("Logged " + (f.length()/1024) + "k");
			logSize.setSize(logSize.computeSize(SWT.DEFAULT, SWT.DEFAULT));
			line2.setSize(line2.computeSize(SWT.DEFAULT, SWT.DEFAULT));
		}
		
		this.setSize(this.computeSize(SWT.DEFAULT, SWT.DEFAULT));
		
		View.display.timerExec(1000, this);
	}
}

class BeaconTable extends Composite implements ReceiverListener {
	final static int THRESHOLD_STALE = 5000;
	final static int THRESHOLD_REMOVE = 15000;
	
	
	private Table tbl;
	
	Hashtable container = new Hashtable();
	
	public BeaconTable (Composite parent) {
		super(parent, SWT.NONE);
		
		GridLayout layout = new GridLayout();
		layout.numColumns = 1;
		layout.marginHeight = 0;
		layout.marginWidth = 0;
		
		
		setLayout(layout);
		
		GridData gd = new GridData();
		gd.horizontalAlignment = GridData.FILL;
		gd.verticalAlignment = GridData.FILL;
		gd.grabExcessHorizontalSpace = true;
		gd.grabExcessVerticalSpace = true;
		gd.widthHint = 225;
		gd.heightHint = 200;
		
		tbl = new Table(this, SWT.BORDER);
		tbl.setLinesVisible(true);
		tbl.setHeaderVisible(true);
		
		
		tbl.setLayoutData(gd);
		
		
//		 define columns
		String[] cols = { "Address" , "Name", "Type", "RSSI", "Mode", "Lat", "Lon"};
		int[] colWidths = { 120, 80, 40, 50, 70, 70, 70 };
		for (int i = 0;i<cols.length; i++ ) {
			TableColumn col = new TableColumn(tbl, SWT.NULL);
			col.setText(cols[i]);	
			col.setWidth(colWidths[i]);
		}
		
		for (Enumeration e = Stumbler.getStumbler().getReceivers(); e.hasMoreElements(); ) {
			Receiver r = (Receiver) e.nextElement();
			if (r instanceof WiFiReceiver) 
				r.addListener(this);
		}
		
		View.display.timerExec(1000, new Runnable(){
			public void run () {
				
				if (View.shell.isDisposed())
					return;
				
				BeaconTable.this.tbl.removeAll();
				
				for (Enumeration e = container.keys(); e.hasMoreElements(); ) {
					String key = (String) e.nextElement();
					Hashtable h = (Hashtable) container.get(key);

					long time = ( (Long) h.get("time")).longValue();
					

					if ((System.currentTimeMillis() - time) >= THRESHOLD_REMOVE) {
						container.remove(key);
						continue;
					} 
					
					TableItem ti = new TableItem(BeaconTable.this.tbl, SWT.NONE);
					ti.setText(new String[]{
							(String) h.get("address"),
							(String) h.get("name"),
							(String) h.get("type"),
							(String) h.get("rssi"),
							(String) h.get("mode"),
							(String) h.get("lat"),
							(String) h.get("lon")
					});
					
					if ((System.currentTimeMillis() - time) >= THRESHOLD_STALE) {
						ti.setForeground(View.display.getSystemColor(SWT.COLOR_GRAY));
					}
					
				}
				
				View.display.timerExec(1000, this);
			}
		});
	}
	
	public void receiverUpdated (Receiver r) {
		Hashtable[] data = ((BeaconReceiver) r).getBeaconData();
		
		if (data == null) {
			return;
		}
		
		for (int i=0;i<data.length;i++) {
			data[i].put("time", new Long(System.currentTimeMillis()));
			container.put(data[i].get("address"), data[i]);
			
		}
		
		
	}
}