Bug 193886 NPE is thrown when preview external CSS style in ppt[1205]
engine/org.eclipse.birt.report.engine.emitter.ppt/src/org/eclipse/birt/report/engine/emitter/ppt/PPTRender.java
}
		catch ( Throwable t )
		{
			logger.log( Level.WARNING, t.getMessage( ), t );
		}
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.engine.layout.area.IAreaVisitor#setTotalPage(org.eclipse.birt.report.engine.layout.area.ITextArea)
	 */
	public void setTotalPage( ITextArea totalPage )
	{
		
		
		
		
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.engine.layout.area.IAreaVisitor#visitText(org.eclipse.birt.report.engine.layout.area.ITextArea)
	 */
	public void visitText( ITextArea textArea )
	{
		ContainerPosition curPos;
		if ( !containerStack.isEmpty( ) )
		{
			curPos = (ContainerPosition) containerStack.peek( );
		}