Bug 182000 Cross tab layout behavior
In the current approach of cross tab layout view, the arrow is associated with the first data item in the cell. - User cannot delete measure and level data items which have arrow with them. -Wenbin has concerns with the approach, as this will make the UI very restrictive. - Also user may want to delete data item and just show image in a cross tab cell. We had a discussion with Bang, and he has revised the mockups for the layout - The idea is that the arrow is associated with the cross tab cell and not data item. Let us know if there are any issues with supporting this.
xtab/org.eclipse.birt.report.item.crosstab.ui/src/org/eclipse/birt/report/item/crosstab/internal/ui/util/CrosstabUIHelper.java
new FileInputStream( getURL( sPluginRelativePath ).toString( ) ) );
			}
		}
		catch ( FileNotFoundException e )
		{
		}
		catch ( IOException e )
		{
		}
		
		if ( img == null )
		{
			img = new Image( Display.getCurrent( ), 1, 1 );
		}
		return img;
	}
	/**
	 * This method returns an URL for a resource given its plugin relative path.
	 * It is intended to be used to abstract out the usage of the UI as a plugin
	 * or standalone component when it comes to accessing resources.
	 * 
	 * @param sPluginRelativePath
	 *            The path to the resource relative to the plugin location.
	 * @return URL representing the location of the resource.
	 */
	public static URL getURL( String sPluginRelativePath )
	{
		URL url = null;
		try
		{