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
setCurrentIP( 0 );
		setCurrentBP( 0 );
		repeatRowCount = 0;
		setCurrentIP( 0 );
	}
	protected int getAvaHeight( )
	{
		root.setAllocatedHeight( parent.getMaxAvaHeight( )
				- parent.getCurrentBP( ) );
		return root.getContentHeight( );
	}
	protected void closeLayout( )
	{
		if ( root.getChildrenCount( ) == 0 )
		{
			return;
		}
		if ( !isLast )
		{
			updateAllUnresolvedCellArea( );
			root.setHeight( getCurrentBP( ) + getOffsetY( ) );
			return;
		}
		
		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 );