code: public void updateOverviewPage()
  	{
  		try
  		{
  			theOverview.disposeFigures();
  			traceRunner.drawOverview(theOverview, new Long(currentTime));
  
  			for (Long cpu : cpuTabs.keySet())
  			{
  				GenericTabItem tab = cpuTabs.get(cpu);
  				tab.disposeFigures();
  				traceRunner.drawCpu(tab, cpu, new Long(currentTime));
  			}
  
  		} catch (Exception e)
  		{
  			TracefileViewerPlugin.log(e);
  		}
  	}
docs: /*
  (non-Javadoc)
  @see org.overture.ide.plugins.rttraceviewer.viewer.IViewCallback#updateOverviewPage ()