Bug 132645 Mouse Double Click/URL Redirect on Y series of Line Chart does not work
Decription: Add a interactivity on line chart, mouse double click/URL Redirect on Y Series, does not work. Steps to reproduce: 1.Add a line chart, bind with valid dataset. 2.In the "Format Chart" tab, add a interactivity on "Value(Y) Series", the type is "Mouse Double Click", and the action is set "URL Redirect". 3.Preview in layout, click on the Y Series, interactivity does not work.
chart/org.eclipse.birt.chart.device.extension/src/org/eclipse/birt/chart/device/image/JavaxImageIOWriter.java
{
				sb.append( "," ); 
			}
			sb.append( (int) db.doubleValue( ) );
		}
		return sb.toString( );
	}
	private boolean checkSupportedAction( Action action )
	{
		return ( action != null && ( action.getType( ) == ActionType.URL_REDIRECT_LITERAL
				|| action.getType( ) == ActionType.SHOW_TOOLTIP_LITERAL || action.getType( ) == ActionType.INVOKE_SCRIPT_LITERAL ) );
	}
	/**
	 * Returns if the given format type or MIME type is supported by the
	 * registered JavaxImageIO writers.
	 * 
	 * @return
	 */
	protected boolean isSupportedByJavaxImageIO( )
	{
		boolean supported = false;
		
		String s = getFormat( );
		if ( s != null )
		{
			Iterator it = ImageIO.getImageWritersByFormatName( s );
			if ( it.hasNext( ) )
			{
				supported = true;
			}