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/PDFTableLM.java
&& currentRowID < rowSpan
									+ currentRowContent[i].rowID || rowSpan < 0 )
					{
						
						newRowContent[i] = currentRowContent[i];
					}
					else
					{
						
						newRowContent[i] = null;
						removeDropAreaByIndex( i );
					}
				}
			}
		}
		lastRowContent = currentRowContent;
		lastRow = currentRow;
		currentRowContent = newRowContent;
		currentRow = new RowWrapper( row, currentRowID );
	}
	protected void removeDropAreaByIndex( int index )
	{
		Iterator iter = dropList.iterator( );
		while ( iter.hasNext( ) )
		{
			DropCellInfo dropCell = (DropCellInfo) iter.next( );
			if ( dropCell.cell.getColumnID( ) == index )
			{
				verticalAlign( dropCell.cell );
				iter.remove( );