Bug 157262 Column visibility doesn't work properly in attached report in PDF
Column visibility doesn't work properly in attached report Steps to reproduce: 1.open the attached file 2.preview it in PDF Expected result: Column visibility works well in PDF Actual result: The column visibility of the second and third column of the inner grid in the cell(1,0) doesn't works
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/pdf/PDFTableLM.java
root.setAllocatedHeight( parent.getMaxAvaHeight( )
				- parent.getCurrentBP( ) );
		return root.getContentHeight( );
	}
	private void closeLayout( IBottomBorderResolverStrategy bbr )
	{
 		if ( root.getChildrenCount( ) == 0 )
		{
			return;
		}
 		
 		ArrayList lastDropCells = new ArrayList();
 		Iterator it = dropList.iterator( );
 		while ( it.hasNext( ) )
		{
			DropCellInfo dropCell = (DropCellInfo) it.next( );
			for (int columnID = dropCell.cell.getColumnID(); columnID < dropCell.cell
					.getColumnID()
					+ dropCell.cell.getColSpan(); columnID++)
				lastDropCells.add(new Integer(columnID));
		}
 		
		
		ArrayList list = this.dropList;
		int bottomMaxBorder = 0;
		ArrayList changed = new ArrayList( );
		for ( int i = 0; i < list.size( ); i++ )
		{
			DropCellInfo cell = (DropCellInfo) list.get( i );
			bottomMaxBorder = Math.max( bbr.resolveBottomBorder( cell.cell ),