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
{
		ArrayList dropCells = this.dropList;
		CellWrapper[] cells = currentRowContent;
		
		Iterator iter = row.getChildren( );
		int height = specifiedHeight;
		boolean[] hasCell = new boolean[columnNumber];
		while ( iter.hasNext( ) )
		{
			CellArea cell = (CellArea) iter.next( );
			
			height = Math.max( height, cell.getHeight( ) );
			/*
			 * if(cell.getRowSpan( )==1) { height = Math.max( height,
			 * cell.getHeight( ) ); }
			 */
			int colID = cell.getColumnID( );
			for ( int i = colID; i < cell.getColumnID( ) + cell.getColSpan( ); i++ )
			{
				hasCell[i] = true;
			}
			if ( cells[colID] != null && ( cells[colID].rowSpan != 1 ) )
			{
				dropCells.add( new DropCellInfo( cell, cells[colID].rowSpan ) );
			}
		}
		Iterator iterator = dropCells.iterator( );
		while ( iterator.hasNext( ) )
		{
			DropCellInfo dropCell = (DropCellInfo) iterator.next( );