Bug 212291 SWT Chart render engine always uses 96 DPI(Display) resolution
chart/org.eclipse.birt.chart.device.extension/src/org/eclipse/birt/chart/device/swing/SwingRendererImpl.java
if ( al == null )
			{
				al = new ArrayList( 4 ); 
				_lhmAllTriggers.put( tc, al );
			}
			al.add( sa );
		}
		this._allShapes.add( sa );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.chart.output.IPrimitiveRenderListener#enableInteraction(org.eclipse.birt.chart.output.InteractionEvent)
	 */
	public void enableInteraction( InteractionEvent iev ) throws ChartException
	{
		if ( _iun == null )
		{
			logger.log( ILogger.INFORMATION,
					Messages.getString( "SwingRendererImpl.exception.missing.component.interaction", getULocale( ) ) ); 
			return;
		}
		final Trigger[] tga = iev.getTriggers( );
		if ( tga == null )
		{
			return;
		}
		
		ShapedAction sa = getShapedAction( iev );
		if ( sa != null )