Bug 192347 [acceptance]Theme cannot be deleted[01]
Description: [acceptance]Theme cannot be deleted Build number:2.2.0.v20070613 Steps to reproduce: 1. New a library. 2. New a theme and delete it. Expected result: Theme can be deleted Actual result: Delete key doesn't work and no delete item in context menu. Error log:n/a
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/DNDUtil.java
if ( handle instanceof TableHandle )
			{
				return ( (TableHandle) handle );
			}
			if ( handle instanceof GridHandle )
			{
				return ( (GridHandle) handle );
			}
			handle = handle.getContainer( );
		}
		return null;
	}
	/**
	 * Returns if all objects are in the same column
	 * 
	 * @param objs
	 *            the array of the object
	 */
	public static boolean isInSameColumn( Object[] objs )
	{
		assert objs != null && objs.length > 1;
		final class ColumnPosition
		{
			int columnNumber;
			Object parent;
			ColumnPosition( Object obj )
			{
				if ( obj instanceof ColumnHandle )
				{
					ColumnHandleAdapter columnAdapter = HandleAdapterFactory.getInstance( )