Bug 198994 PDF border crossed at zoom factor such as 100%, 134% etc
PDF border crossed at zoom factor such as 100%, 134%. Need enhance the border appearance in PDF report.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/emitter/PageDeviceRender.java
containerStack.push( current );
			}
			else
			{
				containerStack.push( new ContainerPosition( getX( container ),
						getY( container ) ) );
			}
		}
	}
	private void clip( IContainerArea container )
	{
		ContainerPosition curPos = getContainerPosition( );
		int startX = curPos.x + getX( container );
		int startY = curPos.y + getY( container );
		int width = getWidth( container );
		int height = getHeight( container );
		pageGraphic.clip( startX, startY, width, height );
	}
	/**
	 * This method will be invoked while a containerArea ends.
	 * 
	 * @param container
	 *            the ContainerArea specified from layout
	 */
	protected void endContainer( IContainerArea container )
	{
		if ( container instanceof PageArea )
		{
			pageGraphic.dispose( );
		}