修改table高度

table.addListener(SWT.MeasureItem, new Listener(){

			@Override
			public void handleEvent(Event event) {
				// TODO Auto-generated method stub
				event.width = table.getGridLineWidth();
				event.height = (int)Math.floor(event.gc.getFontMetrics().getHeight()*1.5);
			}
	    	
	    });