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/SwtRendererImpl.java
(int) ( bo.getHeight( ) * dScale ) );
		Path pt = new Path( ( (SwtDisplayServer) _ids ).getDevice( ) );
		pt.addArc( r.x, r.y, r.width, r.height, 0, 360 );
		try
		{
			if ( flBackground instanceof ColorDefinition )
			{
				fillPathColor( pt, (ColorDefinition) flBackground );
			}
			else if ( flBackground instanceof Gradient )
			{
				fillPathGradient( pt, (Gradient) flBackground, r );
			}
			else if ( flBackground instanceof org.eclipse.birt.chart.model.attribute.Image )
			{
				fillPathImage( pt,
						(org.eclipse.birt.chart.model.attribute.Image) flBackground );
			}
		}
		finally
		{
			pt.dispose( );
		}
		
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.chart.event.IPrimitiveRenderer#drawText(org.eclipse.birt.chart.event.TextRenderEvent)
	 */