Bug 156658 Error occour when previewing a text with a style set word-spacing 20cm in PDF
Description: Error occour when previewing a text with a style set word-spacing 20cm Steps to reproduce: 1.new a text and input some text like "actuate great" 2.new a style and set word-spacing 20cm then apply it to the text 3.Preview in PDF Expected: No error occour Actual: Error occour Error log: org.eclipse.birt.report.service.api.ReportServiceException: Error happened while running the report
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/pdf/PDFTextLM.java
{
	private PDFLineAreaLM lineLM;
	/**
	 * Checks if the compositor needs to pause.
	 */
	private boolean pause = false;
	private Compositor comp = null;
	private ITextContent textContent = null;
	public PDFTextLM( PDFLayoutEngineContext context, PDFStackingLM parent,
			IContent content, IReportItemExecutor executor )
	{
		super( context, parent, content, executor );
		lineLM = (PDFLineAreaLM) parent;
		ITextContent textContent = (ITextContent) content;
		String text = textContent.getText( );
		if ( text != null && text.length( ) != 0 )
		{
			transform( textContent );
			this.textContent = textContent;
			comp = new Compositor();
		}
	}
	protected boolean layoutChildren( )
	{
		if ( null == textContent )
			return false;
		pause = false;
		return comp.compose( );