Bug 164601 It takes ages to display a report with label of very large font size.
Description: It takes ages to display a report with label of very large font size. Steps to reproduce: 1. Insert two labels 2. Set one font weight to 100 and the other to 900 3. Preview in pdf/html Expected result: Show different weight. Actual result: In html, you can see font-weight effect In pdf, the report never displayed. PS.If I change the font size to a small number, say 20, the report in pdf is generated immediated.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/pdf/PDFAbstractLM.java
if ( content != null )
		{
			IStyle style = content.getComputedStyle( );
			if(!IStyle.NONE_VALUE.equals(style.getProperty( IStyle.STYLE_DISPLAY )))
			{
				return isHiddenByVisibility( );
			}
			else
			{
				return true;
			}
		}
		return false;
	}
	protected boolean isHiddenByVisibility( )
	{
		if ( content != null )
		{
			IStyle style = content.getComputedStyle( );
			ListValue formats = (ListValue) style
					.getProperty( IStyle.STYLE_VISIBLE_FORMAT );
			if ( formats.getLength( ) == 0 )
			{
				return false;
			}
			else
			{
				String format = context.getFormat( );
				for ( int i = 0; i < formats.getLength( ); i++ )
				{