Bug 208194 [Automation] [Regression] Blank page is shown when export report as PDF fitting to page width or whole page [1200]
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/emitter/PageDeviceRender.java
protected int currentX;
	protected int currentY;
	protected Logger logger = Logger.getLogger( PageDeviceRender.class
			.getName( ) );
	protected IPageDevice pageDevice;
	protected IPage pageGraphic;
	/**
	 * Gets the output format. always returns "postscript".
	 */
	public abstract String getOutputFormat( );
	public abstract IPageDevice createPageDevice( String title,
			IReportContext context, IReportContent report ) throws Exception;
	/**
	 * Creates a document and create a PdfWriter
	 * 
	 * @param rc
	 *            the report content.
	 */
	public void start( IReportContent rc )
	{
		ReportDesignHandle designHandle = rc.getDesign( ).getReportDesign( );
		String title = designHandle.getStringProperty( IModuleModel.TITLE_PROP );
		try
		{
			pageDevice = createPageDevice( title, context, rc );
		}
		catch ( Exception e )
		{
			log( e, Level.SEVERE );
		}