Bug 212291 SWT Chart render engine always uses 96 DPI(Display) resolution
chart/org.eclipse.birt.chart.device.swt/src/org/eclipse/birt/chart/device/swt/SwtDisplayServer.java
import org.eclipse.swt.widgets.Display;
/**
 * 
 */
public final class SwtDisplayServer extends DisplayAdapter
{
	private Device _d = null;
	private double dScale = 1;
	private int iDpiResolution = 0;
	private static ILogger logger = Logger.getLogger( "org.eclipse.birt.chart.device.extension/swt" ); 
	/**
	 * Returns a new instance of an SWT Display Server
	 * 
	 * @param d
	 * @return
	 */
	public SwtDisplayServer( )
	{
		try
		{
			_d = Display.getDefault( );
		}
		catch ( Exception ex )
		{
			logger.log( ex );
			logger.log( ILogger.FATAL,
					Messages.getString( "SwtDisplayServer.exception.display.server", getULocale( ) ) ); 
		}
		logger.log( ILogger.INFORMATION,
				Messages.getString( "SwtDisplayServer.info.display.server",