public StationIndicator(String displayTxt, Composite parent){
		this(parent);
		wrapper = new Composite(parent, SWT.NONE);
		wrapper.setLayout(new FillLayout() );
		canvas = new Canvas(wrapper, SWT.NONE);
		
		canvas.setBackground(parentz.getDisplay().getSystemColor(SWT.COLOR_GRAY));
		label = new Label(wrapper, SWT.NONE);
		label.setText(displayTxt);
		currColor = parentz.getDisplay().getSystemColor(SWT.COLOR_GRAY);
				
		canvas.addPaintListener(new PaintListener() { 
	        public void paintControl(PaintEvent e) { 
	            //Rectangle clientArea = canvas.getClientArea(); 
	        	e.gc.setAntialias(SWT.ON);
	        	e.gc.setBackground(parentz.getDisplay().getSystemColor(SWT.COLOR_BLACK));
	        	e.gc.fillOval(0,0,20,20);
	            e.gc.setBackground(currColor); 
	            e.gc.fillOval(2,2,16,16); 
	        } 
	    });
	}