Bug 147676 [regression]Visibility set in the first col will affect the second col
Description: Visibility set in the first col will affect the second col Steps to reproduce: 1. Insert a grid(3*3), insert contents to each cell. 2.Set the first col to hide all in visibility and preview Expected result: Only the first col is hidden. Actual result: The second col is hidden, too. If you set the second col in step2, the third col will disappear.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/pdf/PDFAbstractLM.java
}
	protected int getDimensionValue( CSSValue value )
	{
		return getDimensionValue( value, 0 );
	}
	protected int getDimensionValue( CSSValue value, int referenceLength )
	{
		if ( value != null && ( value instanceof FloatValue ) )
		{
			FloatValue fv = (FloatValue) value;
			float v = fv.getFloatValue( );
			switch ( fv.getPrimitiveType( ) )
			{
				case CSSPrimitiveValue.CSS_CM :
					return (int) ( v * 72000 / 2.54 );
				case CSSPrimitiveValue.CSS_IN :
					return (int) ( v * 72000 );
				case CSSPrimitiveValue.CSS_MM :
					return (int) ( v * 7200 / 2.54 );
				case CSSPrimitiveValue.CSS_PT :
					return (int) ( v * 1000 );
				case CSSPrimitiveValue.CSS_NUMBER :
					return (int) v;
				case CSSPrimitiveValue.CSS_PERCENTAGE :
					return (int) ( referenceLength * v );
			}
		}
		return 0;
	}
	protected IPDFTableLayoutManager getTableLayoutManager( )